Bump to v0.112

This only reverts the versioning login change done in a6ae656c since that caused F-Droid bot and Github Packages to fail to pick up new releases. The versions must be bumped directly in `build.gradle` file in future and not through other files like `gradle.properties`.
Update LICENSE
2021-04-22 19:57:08 +05:00 · 2021-04-21 17:01:52 +05:00 · 2021-04-21 17:00:38 +05:00 · 2021-04-21 16:51:20 +05:00 · 2021-04-21 16:51:08 +05:00 · 2021-04-21 14:07:25 +05:00
268 changed files with 24911 additions and 11523 deletions
--- a/.editorconfig
+++ b/.editorconfig
@@ -12,3 +12,9 @@ root = true
 end_of_line = lf
 insert_final_newline = true
 charset = utf-8
+indent_style = space
+indent_size = 4
+
+[*.y{a,}ml]
+indent_size = 2
+indent_style = space
--- a/.gitattributes
+++ b/.gitattributes
@@ -0,0 +1,5 @@
+*           text=auto
+*.bat       eol=crlf
+*.gradle    eol=lf
+*.mk        eol=lf
+*.sh        eol=lf
--- a/.github/FUNDING.yml
+++ b/.github/FUNDING.yml
@@ -0,0 +1,2 @@
+patreon: termux
+custom: https://paypal.me/fornwall
--- a/.github/ISSUE_TEMPLATE/bug_report.md
+++ b/.github/ISSUE_TEMPLATE/bug_report.md
@@ -0,0 +1,35 @@
+---
+name: Bug report
+about: Create a report to help us improve Termux application
+
+---
+
+<!--
+IMPORTANT:
+
+1. Support of Android 5.x - 6.x is finished.
+2. Fill the template AFTER comments.
+-->
+
+**Problem description**
+<!--
+A clear and concise description of what the problem is.
+You may post screenshots in addition to description.
+-->
+
+**Steps to reproduce**
+<!--
+Steps to reproduce the behavior. Please post all necessary
+commands that are needed to reproduce the issue.
+-->
+
+**Expected behavior**
+<!--
+A clear and concise description of what you expected to happen.
+-->
+
+**Additional information**
+
+* Termux application version:
+* Android OS version:
+* Device model:
--- a/.github/ISSUE_TEMPLATE/feature_request.md
+++ b/.github/ISSUE_TEMPLATE/feature_request.md
@@ -0,0 +1,22 @@
+---
+name: Feature request
+about: Suggest a new feature for Termux application
+
+---
+
+<!--
+IMPORTANT:
+
+1. Support of Android 5.x - 6.x is finished.
+2. Fill the template AFTER comments.
+-->
+
+**Feature description**
+<!--
+Describe the feature and why you want it.
+-->
+
+**Reference implementation**
+
+Does another app/terminal emulator have this feature?
+Provide links to more background information.
--- a/.github/workflows/debug_build.yml
+++ b/.github/workflows/debug_build.yml
@@ -0,0 +1,26 @@
+name: Build
+
+on:
+  push:
+    branches:
+      - master
+      - android-10
+  pull_request:
+    branches:
+      - master
+      - android-10
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Clone repository
+      uses: actions/checkout@v2
+    - name: Build
+      run: |
+        ./gradlew assembleDebug
+    - name: Store generated APK file
+      uses: actions/upload-artifact@v2
+      with:
+        name: termux-app
+        path: ./app/build/outputs/apk/debug
--- a/.github/workflows/gradle-wrapper-validation.yml
+++ b/.github/workflows/gradle-wrapper-validation.yml
@@ -0,0 +1,19 @@
+name: "Validate Gradle Wrapper"
+
+on:
+  push:
+    branches:
+      - master
+      - android-10
+  pull_request:
+    branches:
+      - master
+      - android-10
+
+jobs:
+  validation:
+    name: "Validation"
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: gradle/wrapper-validation-action@v1
--- a/.github/workflows/publish_libraries.yml
+++ b/.github/workflows/publish_libraries.yml
@@ -0,0 +1,26 @@
+name: Publish library packages
+
+on:
+  push:
+    branches:
+    - master
+    paths:
+    - 'terminal-emulator/build.gradle'
+    - 'terminal-view/build.gradle'
+    - 'termux-shared/build.gradle'
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Clone repository
+      uses: actions/checkout@v2
+    - name: Perform release build
+      run: |
+        ./gradlew assembleRelease
+    - name: Publish libraries on Github Packages
+      env:
+        GH_USERNAME: xeffyr
+        GH_TOKEN: ${{ secrets.GH_TOKEN }}
+      run: |
+        ./gradlew publish
--- a/.github/workflows/run_tests.yml
+++ b/.github/workflows/run_tests.yml
@@ -0,0 +1,21 @@
+name: Unit tests
+
+on:
+  push:
+    branches:
+      - master
+      - android-10
+  pull_request:
+    branches:
+      - master
+      - android-10
+
+jobs:
+  testing:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Clone repository
+      uses: actions/checkout@v2
+    - name: Execute tests
+      run: |
+        ./gradlew test
--- a/.gitignore
+++ b/.gitignore
@@ -5,6 +5,10 @@
 # Built application files
 build/
 *.apk
+*.so
+.externalNativeBuild
+.cxx
+*.zip

 # Crashlytics configuations
 com_crashlytics_export_strings.xml
@@ -18,19 +22,8 @@ local.properties
 # Signing files
 .signing/

-# User-specific configurations
-.idea/libraries/
-.idea/workspace.xml
-.idea/tasks.xml
-.idea/.name
-.idea/compiler.xml
-.idea/copyright/profiles_settings.xml
-.idea/encodings.xml
-.idea/misc.xml
-.idea/modules.xml
-.idea/scopes/scope_settings.xml
-.idea/vcs.xml
-.idea/dictionaries/
+# Intellij
+.idea/
 *.iml

 # OS-specific files
@@ -39,5 +32,6 @@ local.properties
 ._*
 .Spotlight-V100
 .Trashes
+.swp
 ehthumbs.db
 Thumbs.db
--- a/.idea/codeStyleSettings.xml
+++ b/.idea/codeStyleSettings.xml
@@ -1,229 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ProjectCodeStyleSettingsManager">
-    <option name="PER_PROJECT_SETTINGS">
-      <value>
-        <option name="CLASS_COUNT_TO_USE_IMPORT_ON_DEMAND" value="99" />
-        <option name="NAMES_COUNT_TO_USE_IMPORT_ON_DEMAND" value="99" />
-        <option name="PACKAGES_TO_USE_IMPORT_ON_DEMAND">
-          <value />
-        </option>
-        <option name="IMPORT_LAYOUT_TABLE">
-          <value>
-            <package name="android" withSubpackages="true" static="false" />
-            <emptyLine />
-            <package name="com" withSubpackages="true" static="false" />
-            <emptyLine />
-            <package name="junit" withSubpackages="true" static="false" />
-            <emptyLine />
-            <package name="net" withSubpackages="true" static="false" />
-            <emptyLine />
-            <package name="org" withSubpackages="true" static="false" />
-            <emptyLine />
-            <package name="java" withSubpackages="true" static="false" />
-            <emptyLine />
-            <package name="javax" withSubpackages="true" static="false" />
-            <emptyLine />
-            <package name="" withSubpackages="true" static="false" />
-            <emptyLine />
-            <package name="" withSubpackages="true" static="true" />
-            <emptyLine />
-          </value>
-        </option>
-        <option name="RIGHT_MARGIN" value="100" />
-        <AndroidXmlCodeStyleSettings>
-          <option name="USE_CUSTOM_SETTINGS" value="true" />
-        </AndroidXmlCodeStyleSettings>
-        <Objective-C-extensions>
-          <option name="GENERATE_INSTANCE_VARIABLES_FOR_PROPERTIES" value="ASK" />
-          <option name="RELEASE_STYLE" value="IVAR" />
-          <option name="TYPE_QUALIFIERS_PLACEMENT" value="BEFORE" />
-          <file>
-            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Import" />
-            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Macro" />
-            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Typedef" />
-            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Enum" />
-            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Constant" />
-            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Global" />
-            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Struct" />
-            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="FunctionPredecl" />
-            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Function" />
-          </file>
-          <class>
-            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Property" />
-            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Synthesize" />
-            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="InitMethod" />
-            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="StaticMethod" />
-            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="InstanceMethod" />
-            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="DeallocMethod" />
-          </class>
-          <extensions>
-            <pair source="cpp" header="h" />
-            <pair source="c" header="h" />
-          </extensions>
-        </Objective-C-extensions>
-        <XML>
-          <option name="XML_LEGACY_SETTINGS_IMPORTED" value="true" />
-        </XML>
-        <codeStyleSettings language="XML">
-          <option name="FORCE_REARRANGE_MODE" value="1" />
-          <indentOptions>
-            <option name="CONTINUATION_INDENT_SIZE" value="4" />
-          </indentOptions>
-          <arrangement>
-            <rules>
-              <section>
-                <rule>
-                  <match>
-                    <AND>
-                      <NAME>xmlns:android</NAME>
-                      <XML_NAMESPACE>Namespace:</XML_NAMESPACE>
-                    </AND>
-                  </match>
-                </rule>
-              </section>
-              <section>
-                <rule>
-                  <match>
-                    <AND>
-                      <NAME>xmlns:.*</NAME>
-                      <XML_NAMESPACE>Namespace:</XML_NAMESPACE>
-                    </AND>
-                  </match>
-                  <order>BY_NAME</order>
-                </rule>
-              </section>
-              <section>
-                <rule>
-                  <match>
-                    <AND>
-                      <NAME>.*:id</NAME>
-                      <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
-                    </AND>
-                  </match>
-                </rule>
-              </section>
-              <section>
-                <rule>
-                  <match>
-                    <AND>
-                      <NAME>.*:name</NAME>
-                      <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
-                    </AND>
-                  </match>
-                </rule>
-              </section>
-              <section>
-                <rule>
-                  <match>
-                    <AND>
-                      <NAME>name</NAME>
-                      <XML_NAMESPACE>^$</XML_NAMESPACE>
-                    </AND>
-                  </match>
-                </rule>
-              </section>
-              <section>
-                <rule>
-                  <match>
-                    <AND>
-                      <NAME>style</NAME>
-                      <XML_NAMESPACE>^$</XML_NAMESPACE>
-                    </AND>
-                  </match>
-                </rule>
-              </section>
-              <section>
-                <rule>
-                  <match>
-                    <AND>
-                      <NAME>.*</NAME>
-                      <XML_NAMESPACE>^$</XML_NAMESPACE>
-                    </AND>
-                  </match>
-                  <order>BY_NAME</order>
-                </rule>
-              </section>
-              <section>
-                <rule>
-                  <match>
-                    <AND>
-                      <NAME>.*:layout_width</NAME>
-                      <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
-                    </AND>
-                  </match>
-                </rule>
-              </section>
-              <section>
-                <rule>
-                  <match>
-                    <AND>
-                      <NAME>.*:layout_height</NAME>
-                      <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
-                    </AND>
-                  </match>
-                </rule>
-              </section>
-              <section>
-                <rule>
-                  <match>
-                    <AND>
-                      <NAME>.*:layout_.*</NAME>
-                      <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
-                    </AND>
-                  </match>
-                  <order>BY_NAME</order>
-                </rule>
-              </section>
-              <section>
-                <rule>
-                  <match>
-                    <AND>
-                      <NAME>.*:width</NAME>
-                      <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
-                    </AND>
-                  </match>
-                  <order>BY_NAME</order>
-                </rule>
-              </section>
-              <section>
-                <rule>
-                  <match>
-                    <AND>
-                      <NAME>.*:height</NAME>
-                      <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
-                    </AND>
-                  </match>
-                  <order>BY_NAME</order>
-                </rule>
-              </section>
-              <section>
-                <rule>
-                  <match>
-                    <AND>
-                      <NAME>.*</NAME>
-                      <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
-                    </AND>
-                  </match>
-                  <order>BY_NAME</order>
-                </rule>
-              </section>
-              <section>
-                <rule>
-                  <match>
-                    <AND>
-                      <NAME>.*</NAME>
-                      <XML_NAMESPACE>.*</XML_NAMESPACE>
-                    </AND>
-                  </match>
-                  <order>BY_NAME</order>
-                </rule>
-              </section>
-            </rules>
-          </arrangement>
-        </codeStyleSettings>
-      </value>
-    </option>
-    <option name="PREFERRED_PROJECT_CODE_STYLE" value="TermuxCodeStyle" />
-  </component>
-</project>
--- a/.idea/gradle.xml
+++ b/.idea/gradle.xml
@@ -1,19 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="GradleSettings">
-    <option name="linkedExternalProjectsSettings">
-      <GradleProjectSettings>
-        <option name="disableWrapperSourceDistributionNotification" value="true" />
-        <option name="distributionType" value="DEFAULT_WRAPPED" />
-        <option name="externalProjectPath" value="$PROJECT_DIR$" />
-        <option name="gradleJvm" value="1.8" />
-        <option name="modules">
-          <set>
-            <option value="$PROJECT_DIR$" />
-            <option value="$PROJECT_DIR$/app" />
-          </set>
-        </option>
-      </GradleProjectSettings>
-    </option>
-  </component>
-</project>
--- a/.idea/inspectionProfiles/Project_Default.xml
+++ b/.idea/inspectionProfiles/Project_Default.xml
@@ -1,15 +0,0 @@
-<component name="InspectionProjectProfileManager">
-  <profile version="1.0">
-    <option name="myName" value="Project Default" />
-    <inspection_tool class="AndroidLintGoogleAppIndexingWarning" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="EmptyStatementBody" enabled="true" level="WARNING" enabled_by_default="true">
-      <option name="m_reportEmptyBlocks" value="true" />
-      <option name="commentsAreContent" value="true" />
-    </inspection_tool>
-    <inspection_tool class="SpellCheckingInspection" enabled="false" level="TYPO" enabled_by_default="false">
-      <option name="processCode" value="true" />
-      <option name="processLiterals" value="true" />
-      <option name="processComments" value="true" />
-    </inspection_tool>
-  </profile>
-</component>
--- a/.idea/inspectionProfiles/profiles_settings.xml
+++ b/.idea/inspectionProfiles/profiles_settings.xml
@@ -1,7 +0,0 @@
-<component name="InspectionProjectProfileManager">
-  <settings>
-    <option name="PROJECT_PROFILE" value="Project Default" />
-    <option name="USE_PROJECT_PROFILE" value="true" />
-    <version value="1.0" />
-  </settings>
-</component>
--- a/.idea/runConfigurations.xml
+++ b/.idea/runConfigurations.xml
@@ -1,12 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="RunConfigurationProducerService">
-    <option name="ignoredProducers">
-      <set>
-        <option value="org.jetbrains.plugins.gradle.execution.test.runner.AllInPackageGradleConfigurationProducer" />
-        <option value="org.jetbrains.plugins.gradle.execution.test.runner.TestClassGradleConfigurationProducer" />
-        <option value="org.jetbrains.plugins.gradle.execution.test.runner.TestMethodGradleConfigurationProducer" />
-      </set>
-    </option>
-  </component>
-</project>
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,29 +0,0 @@
-language: android
-sudo: false
-
-env:
-  global:
-    # The next declaration is the encrypted COVERITY_SCAN_TOKEN, created
-    # via the "travis encrypt" command using the project repo's public key
-    - secure: "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"
-
-android:
-  components:
-    - platform-tools
-    - tools
-    - build-tools-23.0.2
-    - android-23
-    - extra-android-m2repository
-
-script:
-  - ./gradlew testDebugUnitTest
-
-addons:
-  coverity_scan:
-    project:
-      name: "termux/termux-app"
-      description: "Terminal emulator and Linux environment for Android"
-    notification_email: fredrik@fornwall.net
-    build_command_prepend: "./gradlew clean"
-    build_command: "./gradlew assemble"
-    branch_pattern: coverity_scan
--- a/LICENSE.md
+++ b/LICENSE.md
@@ -0,0 +1,7 @@
+This repository is released under [GPLv3 only](https://www.gnu.org/licenses/gpl-3.0.html) license.
+
+### Exceptions
+
+- [Terminal Emulator for Android](https://github.com/jackpal/Android-Terminal-Emulator) code is used which is released under [Apache License 2.0](https://www.apache.org/licenses/LICENSE-2.0). Check [terminal-view](terminal-view) and [terminal-emulator](terminal-emulator) modules.
+- [libcore/ojluni](https://cs.android.com/android/platform/superproject/+/android-11.0.0_r3:libcore/ojluni/) code is used which is released under [GPLv2 only with "Classpath" exception](https://openjdk.java.net/legal/gplv2+ce.html). Check `com.termux.shared.file` package under [termux-shared](termux-shared) module.
+- [libsuperuser ](https://github.com/Chainfire/libsuperuser) code is used which is released under [Apache License 2.0](https://www.apache.org/licenses/LICENSE-2.0). Check `com.termux.shared.shell.StreamGobbler` class under [termux-shared](termux-shared) module.
--- a/README.md
+++ b/README.md
@@ -1,39 +1,95 @@
-Termux app
-==========
-[![Travis build status](https://travis-ci.org/termux/termux-app.svg?branch=master)](https://travis-ci.org/termux/termux-app)
+# Termux application
+
+[![Build status](https://github.com/termux/termux-app/workflows/Build/badge.svg)](https://github.com/termux/termux-app/actions)
+[![Testing status](https://github.com/termux/termux-app/workflows/Unit%20tests/badge.svg)](https://github.com/termux/termux-app/actions)
 [![Join the chat at https://gitter.im/termux/termux](https://badges.gitter.im/termux/termux.svg)](https://gitter.im/termux/termux)

+[Termux](https://termux.com) is an Android terminal application and Linux environment.

-Termux is an Android terminal app and Linux environment.
+- [Termux Reddit community](https://reddit.com/r/termux)
+- [Termux Wiki](https://wiki.termux.com/wiki/)
+- [Termux Twitter](http://twitter.com/termux/)

-* [Termux on Google Play Store](https://play.google.com/store/apps/details?id=com.termux)
-* [Termux on F-Droid](https://f-droid.org/repository/browse/?fdid=com.termux)
-* [termux.com](http://termux.com)
-* [Termux Help](http://termux.com/help/)
-* [Termux app on GitHub](https://github.com/termux/termux-app)
-* [Termux packages on GitHub](https://github.com/termux/termux-packages)
-* [Termux Google+ community](http://termux.com/community/)
+Note that this repository is for the app itself (the user interface and the
+terminal emulation). For the packages installable inside the app, see
+[termux/termux-packages](https://github.com/termux/termux-packages)

-License
-=======
-Released under [the GPLv3 license](https://www.gnu.org/licenses/gpl.html). Contains code from `Terminal Emulator for Android` which is released under [the Apache License 2.0](https://www.apache.org/licenses/).
+***

-Building JNI libraries
-======================
-For ease of use, the JNI libraries are checked into version control. Execute the `build-jnilibs.sh` script to rebuild them.
+**@termux is looking for Termux Application maintainer for implementing new features,
+fixing bugs and reviewing pull requests since current one (@fornwall) is inactive.**

-Terminal resources
-==================
-* [XTerm control sequences](http://invisible-island.net/xterm/ctlseqs/ctlseqs.html)
-* [vt100.net](http://vt100.net/)
-* [Terminal codes (ANSI and terminfo equivalents)](http://wiki.bash-hackers.org/scripting/terminalcodes)
+Issue https://github.com/termux/termux-app/issues/1072 needs extra attention.

-Terminal emulators
-==================
-* VTE (libvte): Terminal emulator widget for GTK+, mainly used in gnome-terminal. [Source](https://github.com/GNOME/vte), [Open Issues](https://bugzilla.gnome.org/buglist.cgi?quicksearch=product%3A%22vte%22+), and [All (including closed) issues](https://bugzilla.gnome.org/buglist.cgi?bug_status=RESOLVED&bug_status=VERIFIED&chfield=resolution&chfieldfrom=-2000d&chfieldvalue=FIXED&product=vte&resolution=FIXED).
-* iTerm 2: OS X terminal application. [Source](https://github.com/gnachman/iTerm2), [Issues](https://gitlab.com/gnachman/iterm2/issues) and [Documentation](http://www.iterm2.com/documentation.html) (which includes [iTerm2 proprietary escape codes](http://www.iterm2.com/documentation-escape-codes.html)).
-* Konsole: KDE terminal application. [Source](https://projects.kde.org/projects/kde/applications/konsole/repository), in particular [tests](https://projects.kde.org/projects/kde/applications/konsole/repository/revisions/master/show/tests), [Bugs](https://bugs.kde.org/buglist.cgi?bug_severity=critical&bug_severity=grave&bug_severity=major&bug_severity=crash&bug_severity=normal&bug_severity=minor&bug_status=UNCONFIRMED&bug_status=NEW&bug_status=ASSIGNED&bug_status=REOPENED&product=konsole) and [Wishes](https://bugs.kde.org/buglist.cgi?bug_severity=wishlist&bug_status=UNCONFIRMED&bug_status=NEW&bug_status=ASSIGNED&bug_status=REOPENED&product=konsole).
-* hterm: JavaScript terminal implementation from Chromium. [Source](https://github.com/chromium/hterm), including [tests](https://github.com/chromium/hterm/blob/master/js/hterm_vt_tests.js), and [Google group](https://groups.google.com/a/chromium.org/forum/#!forum/chromium-hterm).
-* xterm: The grandfather of terminal emulators. [Source](http://invisible-island.net/datafiles/release/xterm.tar.gz).
-* Connectbot: Android SSH client. [Source](https://github.com/connectbot/connectbot)
-* Android Terminal Emulator: Android terminal app which Termux terminal handling is based on. Inactive. [Source](https://github.com/jackpal/Android-Terminal-Emulator).
+***
+
+## Installation
+
+Termux can be obtained through various sources listed below.
+
+The APK files of different sources are signed with different signature keys. The `Termux` app and all its plugins use the same [sharedUserId](https://developer.android.com/guide/topics/manifest/manifest-element) `com.termux` and so all their APKs installed on a device must have been signed with the same signature key to work together and so they must all be installed from the same source. Do not attempt to mix them together, i.e do not try to install an app or plugin from F-Droid and another one from a different source. Android Package Manager will also normally not allow installation of APKs with a different signatures and you will get an error on installation but this restriction can be bypassed with root or with custom roms. If you wish to install from a different source, then you must uninstall any and all existing Termux app or its plugin APKs from your device first, then install all new APKs from the same new source.
+
+Following is a list of Termux app and its plugins.
+
+- [Termux](https://github.com/termux/termux-app)
+- [Termux:API](https://github.com/termux/termux-api)
+- [Termux:Boot](https://github.com/termux/termux-boot)
+- [Termux:Float](https://github.com/termux/termux-float)
+- [Termux:Styling](https://github.com/termux/termux-styling)
+- [Termux:Tasker](https://github.com/termux/termux-tasker)
+- [Termux:Widget](https://github.com/termux/termux-widget)
+
+ If you wish to install Termux from a difference source, you must uninstall all the apps listed above before installing from new source. Go to `Android Settings` -> `Applications` and then look for the following apps. You can also use the search feature if its available on your device and search `termux` in the applications list. Even if you think you have not installed any of the plugins, its strongly suggesting to go through the application list in Android settings and double check if installation is failing.
+
+### F-Droid
+
+Termux application can be obtained from F-Droid [here](https://f-droid.org/en/packages/com.termux/). It usually takes a few days (or even a week or more) for updates to be available on F-Droid once an update has been released on Github. F-Droid releases are built and published by F-Droid once they detect a new Github release. The Termux maintainers **do not** have any control over building and publishing of Termux app on F-Droid. Moreover, the Termux maintainers also do not have access to the APK signing keys of F-Droid releases, so we cannot release an APK ourselves on Github that would be compatible with F-Droid releases.
+
+### Debug Builds
+
+For users who don't want to wait for F-Droid releases and want to try out the latest features immediately or want to test their pull requests can get the APKs from [Github Actions](https://github.com/termux/termux-app/actions) page from the workflow runs labeled `Build`. The APK will be listed under `Artifacts` section. These are published for each commit done to the repository. These APKs are [debuggable](https://developer.android.com/studio/debug) and are also not compatible with other sources.
+##
+
+
+
+## Terminal resources
+
+- [XTerm control sequences](http://invisible-island.net/xterm/ctlseqs/ctlseqs.html)
+- [vt100.net](http://vt100.net/)
+- [Terminal codes (ANSI and terminfo equivalents)](http://wiki.bash-hackers.org/scripting/terminalcodes)
+
+## Terminal emulators
+
+- VTE (libvte): Terminal emulator widget for GTK+, mainly used in gnome-terminal.
+  [Source](https://github.com/GNOME/vte), [Open Issues](https://bugzilla.gnome.org/buglist.cgi?quicksearch=product%3A%22vte%22+),
+  and [All (including closed) issues](https://bugzilla.gnome.org/buglist.cgi?bug_status=RESOLVED&bug_status=VERIFIED&chfield=resolution&chfieldfrom=-2000d&chfieldvalue=FIXED&product=vte&resolution=FIXED).
+
+- iTerm 2: OS X terminal application. [Source](https://github.com/gnachman/iTerm2),
+  [Issues](https://gitlab.com/gnachman/iterm2/issues) and [Documentation](http://www.iterm2.com/documentation.html)
+  (which includes [iTerm2 proprietary escape codes](http://www.iterm2.com/documentation-escape-codes.html)).
+
+- Konsole: KDE terminal application. [Source](https://projects.kde.org/projects/kde/applications/konsole/repository),
+  in particular [tests](https://projects.kde.org/projects/kde/applications/konsole/repository/revisions/master/show/tests),
+  [Bugs](https://bugs.kde.org/buglist.cgi?bug_severity=critical&bug_severity=grave&bug_severity=major&bug_severity=crash&bug_severity=normal&bug_severity=minor&bug_status=UNCONFIRMED&bug_status=NEW&bug_status=ASSIGNED&bug_status=REOPENED&product=konsole)
+  and [Wishes](https://bugs.kde.org/buglist.cgi?bug_severity=wishlist&bug_status=UNCONFIRMED&bug_status=NEW&bug_status=ASSIGNED&bug_status=REOPENED&product=konsole).
+
+- hterm: JavaScript terminal implementation from Chromium. [Source](https://github.com/chromium/hterm),
+  including [tests](https://github.com/chromium/hterm/blob/master/js/hterm_vt_tests.js),
+  and [Google group](https://groups.google.com/a/chromium.org/forum/#!forum/chromium-hterm).
+
+- xterm: The grandfather of terminal emulators.
+  [Source](http://invisible-island.net/datafiles/release/xterm.tar.gz).
+
+- Connectbot: Android SSH client. [Source](https://github.com/connectbot/connectbot)
+
+- Android Terminal Emulator: Android terminal app which Termux terminal handling
+  is based on. Inactive. [Source](https://github.com/jackpal/Android-Terminal-Emulator).
+##
+
+
+
+## For Devs and Contributors
+
+The [termux-shared](termux-shared) library was added in [`v0.109`](https://github.com/termux/termux-app/releases/tag/v0.109). It defines shared constants and utils of Termux app and its plugins. It was created to allow for removal of all hardcoded paths in Termux app. The termux plugins will hopefully use this in future as well. If you are contributing code that is using a constant or a util that may be shared, then define it in `termux-shared` library if it currently doesn't exist and reference it from there. Update the relevant changelogs as well. Pull requests using hardcoded values **will not** be accepted.
+
+The main Termux constants are defined by [`TermuxConstants`](https://github.com/termux/termux-app/blob/master/termux-shared/src/main/java/com/termux/shared/termux/TermuxConstants.java) class. It also contains information on how to fork Termux or build it with your own package name. Changing the package name will require building the bootstrap zip packages and other packages with the new `$PREFIX`, check [Building Packages](https://github.com/termux/termux-packages/wiki/Building-packages) for more info.
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -1,35 +1,170 @@
-apply plugin: 'com.android.application'
+plugins {
+  id "com.android.application"
+}

 android {
-    compileSdkVersion 23
-    buildToolsVersion "23.0.2"
+    compileSdkVersion project.properties.compileSdkVersion.toInteger()
+    ndkVersion project.properties.ndkVersion

    dependencies {
-        compile 'com.android.support:support-annotations:23.1.1'
-    }
+        implementation "androidx.annotation:annotation:1.2.0"
+        implementation "androidx.core:core:1.5.0-rc01"
+        implementation "androidx.drawerlayout:drawerlayout:1.1.1"
+        implementation "androidx.preference:preference:1.1.1"
+        implementation "androidx.viewpager:viewpager:1.0.0"
+        implementation "com.google.guava:guava:24.1-jre"
+        implementation "io.noties.markwon:core:$markwonVersion"
+        implementation "io.noties.markwon:ext-strikethrough:$markwonVersion"
+        implementation "io.noties.markwon:linkify:$markwonVersion"
+        implementation "io.noties.markwon:recycler:$markwonVersion"

-    sourceSets {
-        main {
-            jni.srcDirs = []
-        }
+        implementation project(":terminal-view")
+        implementation project(":termux-shared")
    }

    defaultConfig {
        applicationId "com.termux"
-        minSdkVersion 21
-        targetSdkVersion 23
-        versionCode 26
-        versionName "0.26"
+        minSdkVersion project.properties.minSdkVersion.toInteger()
+        targetSdkVersion project.properties.targetSdkVersion.toInteger()
+        versionCode 112
+        versionName "0.112"
+
+        manifestPlaceholders.TERMUX_PACKAGE_NAME = "com.termux"
+        manifestPlaceholders.TERMUX_APP_NAME = "Termux"
+        manifestPlaceholders.TERMUX_API_APP_NAME = "Termux:API"
+        manifestPlaceholders.TERMUX_BOOT_APP_NAME = "Termux:Boot"
+        manifestPlaceholders.TERMUX_FLOAT_APP_NAME = "Termux:Float"
+        manifestPlaceholders.TERMUX_STYLING_APP_NAME = "Termux:Styling"
+        manifestPlaceholders.TERMUX_TASKER_APP_NAME = "Termux:Tasker"
+        manifestPlaceholders.TERMUX_WIDGET_APP_NAME = "Termux:Widget"
+
+        externalNativeBuild {
+            ndkBuild {
+                cFlags "-std=c11", "-Wall", "-Wextra", "-Werror", "-Os", "-fno-stack-protector", "-Wl,--gc-sections"
+            }
+        }
+
+        ndk {
+            abiFilters 'x86', 'x86_64', 'armeabi-v7a', 'arm64-v8a'
+        }
+
+    }
+
+    signingConfigs {
+        debug {
+            storeFile file('dev_keystore.jks')
+            keyAlias 'alias'
+            storePassword 'xrj45yWGLbsO7W0v'
+            keyPassword 'xrj45yWGLbsO7W0v'
+        }
    }

    buildTypes {
        release {
-            minifyEnabled false
+            minifyEnabled true
+            shrinkResources true
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
+
+        debug {
+            signingConfig signingConfigs.debug
+        }
+    }
+
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+
+    externalNativeBuild {
+        ndkBuild {
+            path "src/main/cpp/Android.mk"
+        }
+    }
+
+    lintOptions {
+        disable 'ProtectedPermissions'
+    }
+
+    testOptions {
+        unitTests {
+            includeAndroidResources = true
+        }
    }
 }

 dependencies {
-    testCompile 'junit:junit:4.12'
+    testImplementation "junit:junit:4.13.2"
+    testImplementation "org.robolectric:robolectric:4.4"
+}
+
+task versionName {
+  doLast {
+    print android.defaultConfig.versionName
+  }
+}
+
+def downloadBootstrap(String arch, String expectedChecksum, String version) {
+    def digest = java.security.MessageDigest.getInstance("SHA-256")
+
+    def localUrl = "src/main/cpp/bootstrap-" + arch + ".zip"
+    def file = new File(projectDir, localUrl)
+    if (file.exists()) {
+        def buffer = new byte[8192]
+        def input = new FileInputStream(file)
+        while (true) {
+            def readBytes = input.read(buffer)
+            if (readBytes < 0) break
+            digest.update(buffer, 0, readBytes)
+        }
+        def checksum = new BigInteger(1, digest.digest()).toString(16)
+        if (checksum == expectedChecksum) {
+            return
+        } else {
+            logger.quiet("Deleting old local file with wrong hash: " + localUrl)
+            file.delete()
+        }
+    }
+
+    def remoteUrl = "https://github.com/termux/termux-packages/releases/download/bootstrap-" + version + "/bootstrap-" + arch + ".zip"
+    logger.quiet("Downloading " + remoteUrl + " ...")
+
+    file.parentFile.mkdirs()
+    def out = new BufferedOutputStream(new FileOutputStream(file))
+
+    def connection = new URL(remoteUrl).openConnection()
+    connection.setInstanceFollowRedirects(true)
+    def digestStream = new java.security.DigestInputStream(connection.inputStream, digest)
+    out << digestStream
+    out.close()
+
+    def checksum = new BigInteger(1, digest.digest()).toString(16)
+    if (checksum != expectedChecksum) {
+        file.delete()
+        throw new GradleException("Wrong checksum for " + remoteUrl + ": expected: " + expectedChecksum + ", actual: " + checksum)
+    }
+}
+
+clean {
+    doLast {
+        def tree = fileTree(new File(projectDir, 'src/main/cpp'))
+        tree.include 'bootstrap-*.zip'
+        tree.each { it.delete() }
+    }
+}
+
+task downloadBootstraps() {
+    doLast {
+        def version = "2021.04.13-r1"
+        downloadBootstrap("aarch64", "ff82e5755d947cd1f3e0b30916d125c6ddd8ba3254801ca7499d73653417e158", version)
+        downloadBootstrap("arm",     "53a7df2d6d0a36a8c9ab5259c8b5457c93b8bae8aec2321a470236b6da54e59a", version)
+        downloadBootstrap("i686",    "f0e1399a13ebed6c5229fde161f9848d9f5eeae7b8cd82f31250a813b52e371", version)
+        downloadBootstrap("x86_64",  "e36c4d8c933dc12b3f48937b7747c7a4dcfaa70f0dd89ad5e8b4465930075ae9", version)
+    }
+}
+
+afterEvaluate {
+  android.applicationVariants.all { variant ->
+    variant.javaCompileProvider.get().dependsOn(downloadBootstraps)
+  }
 }
--- a/app/dev_keystore.jks
+++ b/app/dev_keystore.jks
--- a/app/proguard-rules.pro
+++ b/app/proguard-rules.pro
@@ -7,11 +7,6 @@
 # For more details, see
 #   http://developer.android.com/guide/developing/tools/proguard.html

-# Add any project specific keep options here:
-
-# If your project uses WebView with JS, uncomment the following
-# and specify the fully qualified class name to the JavaScript interface
-# class:
-#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
-#   public *;
-#}
+-dontobfuscate
+#-renamesourcefileattribute SourceFile
+#-keepattributes SourceFile,LineNumberTable
--- a/app/src/androidTest/java/com/termux/ApplicationTest.java
+++ b/app/src/androidTest/java/com/termux/ApplicationTest.java
@@ -1,13 +0,0 @@
-package com.termux;
-
-import android.app.Application;
-import android.test.ApplicationTestCase;
-
-/**
- * <a href="http://d.android.com/tools/testing/testing_android.html">Testing Fundamentals</a>
- */
-public class ApplicationTest extends ApplicationTestCase<Application> {
-    public ApplicationTest() {
-        super(Application.class);
-    }
-}
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -1,77 +1,187 @@
+<?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
    package="com.termux"
    android:installLocation="internalOnly"
-    android:sharedUserId="com.termux"
-    android:sharedUserLabel="@string/shared_user_label" >
+    android:sharedUserId="${TERMUX_PACKAGE_NAME}"
+    android:sharedUserLabel="@string/shared_user_label">

-	<uses-feature android:name="android.hardware.touchscreen" android:required="false" />
-	<uses-feature android:name="android.software.leanback" android:required="false" />
+    <uses-feature
+        android:name="android.hardware.touchscreen"
+        android:required="false" />
+    <uses-feature
+        android:name="android.software.leanback"
+        android:required="false" />

+    <permission
+        android:name="${TERMUX_PACKAGE_NAME}.permission.RUN_COMMAND"
+        android:description="@string/permission_run_command_description"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/permission_run_command_label"
+        android:protectionLevel="dangerous" />
+
+    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.WAKE_LOCK" />
    <uses-permission android:name="android.permission.VIBRATE" />
+    <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
+    <uses-permission android:name="android.permission.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS" />
+    <uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />
+    <uses-permission android:name="android.permission.READ_LOGS" />
+    <uses-permission android:name="android.permission.DUMP" />
+    <uses-permission android:name="android.permission.WRITE_SECURE_SETTINGS" />
+    <uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES" />

    <application
-        android:allowBackup="true"
-        android:fullBackupContent="@xml/backupscheme"
-        android:icon="@drawable/ic_launcher"
+        android:name=".app.TermuxApplication"
+        android:allowBackup="false"
        android:banner="@drawable/banner"
+        android:extractNativeLibs="true"
+        android:icon="@mipmap/ic_launcher"
        android:label="@string/application_name"
-        android:theme="@style/Theme.Termux"
-        android:supportsRtl="false" >
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="false"
+        android:theme="@style/Theme.Termux">
+
+        <!--
+         This (or rather, value 2.1 or higher) is needed to make the Samsung Galaxy S8
+             mark the app with "This app is optimized to run in full screen."
+        -->
+        <meta-data
+            android:name="android.max_aspect"
+            android:value="10.0" />

        <activity
-            android:name="com.termux.app.TermuxActivity"
-            android:configChanges="keyboard|keyboardHidden|orientation|screenSize"
+            android:name=".app.TermuxActivity"
+            android:configChanges="orientation|screenSize|smallestScreenSize|density|screenLayout|uiMode|keyboard|keyboardHidden|navigation"
+            android:label="@string/application_name"
            android:launchMode="singleTask"
-            android:windowSoftInputMode="adjustResize|stateAlwaysVisible" >
+            android:resizeableActivity="true"
+            android:windowSoftInputMode="adjustResize|stateAlwaysVisible">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
+
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
-		    <intent-filter>
-				<action android:name="android.intent.action.MAIN" />
-				<category android:name="android.intent.category.LEANBACK_LAUNCHER" />
-		    </intent-filter>
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LEANBACK_LAUNCHER" />
+            </intent-filter>
+
+            <meta-data
+                android:name="android.app.shortcuts"
+                android:resource="@xml/shortcuts" />
        </activity>

-        <activity
-            android:name="com.termux.app.TermuxHelpActivity"
-            android:exported="false"
-            android:theme="@android:style/Theme.Material.Light.DarkActionBar"
-            android:parentActivityName=".app.TermuxActivity"
-            android:label="@string/application_name" />
+        <activity-alias
+            android:name=".HomeActivity"
+            android:targetActivity=".app.TermuxActivity">
+
+            <!-- Launch activity automatically on boot on Android Things devices -->
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.IOT_LAUNCHER" />
+                <category android:name="android.intent.category.DEFAULT" />
+            </intent-filter>
+        </activity-alias>

        <activity
-            android:name="com.termux.filepicker.TermuxFilePickerActivity"
+            android:name=".app.activities.HelpActivity"
+            android:exported="false"
            android:label="@string/application_name"
-            android:theme="@android:style/Theme.Material.Light.DarkActionBar"
-            android:noHistory="true">
+            android:parentActivityName=".app.TermuxActivity"
+            android:resizeableActivity="true"
+            android:theme="@android:style/Theme.Material.Light.DarkActionBar" />
+
+        <activity
+            android:name=".app.activities.SettingsActivity"
+            android:exported="true"
+            android:label="@string/title_activity_termux_settings"
+            android:theme="@style/Theme.AppCompat.Light.DarkActionBar" />
+
+        <activity
+            android:name=".app.activities.ReportActivity"
+            android:theme="@style/Theme.AppCompat.TermuxReportActivity"
+            android:documentLaunchMode="intoExisting"
+            />
+
+        <activity
+            android:name=".filepicker.TermuxFileReceiverActivity"
+            android:excludeFromRecents="true"
+            android:label="@string/application_name"
+            android:noHistory="true"
+            android:resizeableActivity="true"
+            android:taskAffinity="${TERMUX_PACKAGE_NAME}.filereceiver">
+
+            <!-- Accept multiple file types when sending. -->
            <intent-filter>
-                <!--
-                  http://stackoverflow.com/questions/6486716/using-intent-action-pick-for-specific-path
-                  "That said, you should consider ACTION_PICK deprecated. The modern action is ACTION_GET_CONTENT
-                  which is much better supported; you will find support of ACTION_PICK spotty and inconsistent.
-                  Unfortunately ACTION_GET_CONTENT also does not let you specify a directory."
-                -->
-                <action android:name="android.intent.action.GET_CONTENT" />
+                <action android:name="android.intent.action.SEND" />
+
                <category android:name="android.intent.category.DEFAULT" />
-                <category android:name="android.intent.category.OPENABLE" />
-                <data android:mimeType="*/*" />
+
+                <data android:mimeType="application/*" />
+                <data android:mimeType="audio/*" />
+                <data android:mimeType="image/*" />
+                <data android:mimeType="message/*" />
+                <data android:mimeType="multipart/*" />
+                <data android:mimeType="text/*" />
+                <data android:mimeType="video/*" />
+            </intent-filter>
+            <!-- Accept multiple file types to let Termux be usable as generic file viewer. -->
+            <intent-filter tools:ignore="AppLinkUrlError">
+                <action android:name="android.intent.action.VIEW" />
+
+                <category android:name="android.intent.category.DEFAULT" />
+
+                <data android:mimeType="application/*" />
+                <data android:mimeType="audio/*" />
+                <data android:mimeType="image/*" />
+                <data android:mimeType="text/*" />
+                <data android:mimeType="video/*" />
            </intent-filter>
        </activity>

-        <provider android:authorities="com.termux.filepicker.provider"
-            android:readPermission="com.termux.filepickder.READ"
+        <provider
+            android:name=".filepicker.TermuxDocumentsProvider"
+            android:authorities="${TERMUX_PACKAGE_NAME}.documents"
            android:exported="true"
            android:grantUriPermissions="true"
-            android:name="com.termux.filepicker.TermuxFilePickerProvider" />
+            android:permission="android.permission.MANAGE_DOCUMENTS">
+            <intent-filter>
+                <action android:name="android.content.action.DOCUMENTS_PROVIDER" />
+            </intent-filter>
+        </provider>

        <service
-            android:name="com.termux.app.TermuxService"
+            android:name=".app.TermuxService"
            android:exported="false" />
+        <service
+            android:name=".app.RunCommandService"
+            android:exported="true"
+            android:permission="${TERMUX_PACKAGE_NAME}.permission.RUN_COMMAND">
+            <intent-filter>
+                <action android:name="${TERMUX_PACKAGE_NAME}.RUN_COMMAND" />
+            </intent-filter>
+        </service>

+        <receiver android:name=".app.TermuxOpenReceiver" />
+
+        <provider
+            android:name=".app.TermuxOpenReceiver$ContentProvider"
+            android:authorities="${TERMUX_PACKAGE_NAME}.files"
+            android:exported="true"
+            android:grantUriPermissions="true"
+            android:readPermission="android.permission.permRead" />
+
+        <meta-data
+            android:name="com.sec.android.support.multiwindow"
+            android:value="true" />
+        <meta-data
+            android:name="com.samsung.android.multidisplay.keep_process_alive"
+            android:value="true" />
    </application>

 </manifest>
--- a/app/src/main/cpp/Android.mk
+++ b/app/src/main/cpp/Android.mk
@@ -0,0 +1,5 @@
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+LOCAL_MODULE := libtermux-bootstrap
+LOCAL_SRC_FILES := termux-bootstrap-zip.S termux-bootstrap.c
+include $(BUILD_SHARED_LIBRARY)
--- a/app/src/main/cpp/termux-bootstrap-zip.S
+++ b/app/src/main/cpp/termux-bootstrap-zip.S
@@ -0,0 +1,18 @@
+     .global blob
+     .global blob_size
+     .section .rodata
+ blob:
+ #if defined __i686__
+     .incbin "bootstrap-i686.zip"
+ #elif defined __x86_64__
+     .incbin "bootstrap-x86_64.zip"
+ #elif defined __aarch64__
+     .incbin "bootstrap-aarch64.zip"
+ #elif defined __arm__
+     .incbin "bootstrap-arm.zip"
+ #else
+ # error Unsupported arch
+ #endif
+ 1:
+ blob_size:
+     .int 1b - blob
--- a/app/src/main/cpp/termux-bootstrap.c
+++ b/app/src/main/cpp/termux-bootstrap.c
@@ -0,0 +1,11 @@
+#include <jni.h>
+
+extern jbyte blob[];
+extern int blob_size;
+
+JNIEXPORT jbyteArray JNICALL Java_com_termux_app_TermuxInstaller_getZip(JNIEnv *env, __attribute__((__unused__)) jobject This)
+{
+    jbyteArray ret = (*env)->NewByteArray(env, blob_size);
+    (*env)->SetByteArrayRegion(env, ret, 0, blob_size, blob);
+    return ret;
+}
--- a/app/src/main/java/com/termux/app/DialogUtils.java
+++ b/app/src/main/java/com/termux/app/DialogUtils.java
@@ -1,80 +0,0 @@
-package com.termux.app;
-
-import android.app.Activity;
-import android.app.AlertDialog;
-import android.content.DialogInterface;
-import android.content.res.Configuration;
-import android.text.Selection;
-import android.util.TypedValue;
-import android.view.KeyEvent;
-import android.view.ViewGroup.LayoutParams;
-import android.view.WindowManager;
-import android.widget.EditText;
-import android.widget.LinearLayout;
-import android.widget.TextView;
-
-final class DialogUtils {
-
-	public interface TextSetListener {
-		void onTextSet(String text);
-	}
-
-	static void textInput(Activity activity, int titleText, int positiveButtonText, String initialText, final TextSetListener onPositive,
-										 int neutralButtonText, final TextSetListener onNeutral) {
-		final EditText input = new EditText(activity);
-		input.setSingleLine();
-		if (initialText != null) {
-			input.setText(initialText);
-			Selection.setSelection(input.getText(), initialText.length());
-		}
-
-		final AlertDialog[] dialogHolder = new AlertDialog[1];
-		input.setImeActionLabel(activity.getResources().getString(positiveButtonText), KeyEvent.KEYCODE_ENTER);
-		input.setOnEditorActionListener(new TextView.OnEditorActionListener() {
-			@Override
-			public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
-				onPositive.onTextSet(input.getText().toString());
-				dialogHolder[0].dismiss();
-				return true;
-			}
-		});
-
-		float dipInPixels = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 1, activity.getResources().getDisplayMetrics());
-		// https://www.google.com/design/spec/components/dialogs.html#dialogs-specs
-		int paddingTopAndSides = Math.round(16 * dipInPixels);
-		int paddingBottom = Math.round(24 * dipInPixels);
-
-		LinearLayout layout = new LinearLayout(activity);
-		layout.setOrientation(LinearLayout.VERTICAL);
-		layout.setLayoutParams(new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT));
-		layout.setPadding(paddingTopAndSides, paddingTopAndSides, paddingTopAndSides, paddingBottom);
-		layout.addView(input);
-
-		AlertDialog.Builder builder = new AlertDialog.Builder(activity)
-				.setTitle(titleText).setView(layout)
-				.setPositiveButton(positiveButtonText, new DialogInterface.OnClickListener() {
-					@Override
-					public void onClick(DialogInterface d, int whichButton) {
-						onPositive.onTextSet(input.getText().toString());
-				}
-			})
-				.setNegativeButton(android.R.string.cancel, null);
-
-		if (onNeutral != null) {
-			builder.setNeutralButton(neutralButtonText, new DialogInterface.OnClickListener() {
-				@Override
-				public void onClick(DialogInterface dialog, int which) {
-					onNeutral.onTextSet(input.getText().toString());
-				}
-			});
-		}
-
-		dialogHolder[0] = builder.create();
-		if ((activity.getResources().getConfiguration().hardKeyboardHidden & Configuration.HARDKEYBOARDHIDDEN_YES) == 0) {
-			// Show soft keyboard unless hardware keyboard available.
-			dialogHolder[0].getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_VISIBLE);
-		}
-		dialogHolder[0].show();
-	}
-
-}
--- a/app/src/main/java/com/termux/app/FullScreenHelper.java
+++ b/app/src/main/java/com/termux/app/FullScreenHelper.java
@@ -1,68 +0,0 @@
-package com.termux.app;
-
-import android.app.Activity;
-import android.graphics.Rect;
-import android.view.View;
-import android.view.ViewTreeObserver;
-import android.view.Window;
-import android.view.WindowManager;
-import android.widget.FrameLayout;
-import android.widget.FrameLayout.LayoutParams;
-
-/**
- * Utility to make the touch keyboard and immersive mode work with full screen activities.
- * 
- * See https://code.google.com/p/android/issues/detail?id=5497
- */
-final class FullScreenHelper implements ViewTreeObserver.OnGlobalLayoutListener {
-
-	private boolean mEnabled = false;
-	private final Activity mActivity;
-	private final Rect mWindowRect = new Rect();
-
-	public FullScreenHelper(Activity activity) {
-		this.mActivity = activity;
-	}
-
-	public void setImmersive(boolean enabled) {
-		Window win = mActivity.getWindow();
-
-		if (enabled == mEnabled) {
-			if (!enabled) win.setFlags(0, WindowManager.LayoutParams.FLAG_FULLSCREEN);
-			return;
-		}
-		mEnabled = enabled;
-
-		final View childViewOfContent = ((FrameLayout) mActivity.findViewById(android.R.id.content)).getChildAt(0);
-		if (enabled) {
-			win.setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
-			setImmersiveMode();
-			childViewOfContent.getViewTreeObserver().addOnGlobalLayoutListener(this);
-		} else {
-			win.setFlags(0, WindowManager.LayoutParams.FLAG_FULLSCREEN);
-			win.getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_VISIBLE);
-			childViewOfContent.getViewTreeObserver().removeOnGlobalLayoutListener(this);
-			((LayoutParams) childViewOfContent.getLayoutParams()).height = android.view.ViewGroup.LayoutParams.MATCH_PARENT;
-		}
-	}
-
-	private void setImmersiveMode() {
-		mActivity.getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);
-	}
-
-	@Override
-	public void onGlobalLayout() {
-		final View childViewOfContent = ((FrameLayout) mActivity.findViewById(android.R.id.content)).getChildAt(0);
-
-		if (mEnabled) setImmersiveMode();
-
-		childViewOfContent.getWindowVisibleDisplayFrame(mWindowRect);
-		int usableHeightNow = Math.min(mWindowRect.height(), childViewOfContent.getRootView().getHeight());
-		FrameLayout.LayoutParams layout = (LayoutParams) childViewOfContent.getLayoutParams();
-		if (layout.height != usableHeightNow) {
-			layout.height = usableHeightNow;
-			childViewOfContent.requestLayout();
-		}
-	}
-
-}
--- a/app/src/main/java/com/termux/app/RunCommandService.java
+++ b/app/src/main/java/com/termux/app/RunCommandService.java
@@ -0,0 +1,219 @@
+package com.termux.app;
+
+import android.app.Notification;
+import android.app.NotificationManager;
+import android.app.Service;
+import android.content.Intent;
+import android.net.Uri;
+import android.os.Binder;
+import android.os.Build;
+import android.os.IBinder;
+
+import com.termux.R;
+import com.termux.shared.termux.TermuxConstants;
+import com.termux.shared.termux.TermuxConstants.TERMUX_APP.RUN_COMMAND_SERVICE;
+import com.termux.shared.termux.TermuxConstants.TERMUX_APP.TERMUX_SERVICE;
+import com.termux.shared.file.FileUtils;
+import com.termux.shared.logger.Logger;
+import com.termux.shared.notification.NotificationUtils;
+import com.termux.app.utils.PluginUtils;
+import com.termux.shared.data.DataUtils;
+import com.termux.shared.models.ExecutionCommand;
+
+/**
+ * A service that receives {@link RUN_COMMAND_SERVICE#ACTION_RUN_COMMAND} intent from third party apps and
+ * plugins that contains info on command execution and forwards the extras to {@link TermuxService}
+ * for the actual execution.
+ *
+ * Check https://github.com/termux/termux-app/wiki/RUN_COMMAND-Intent for more info.
+ */
+public class RunCommandService extends Service {
+
+    private static final String LOG_TAG = "RunCommandService";
+
+    class LocalBinder extends Binder {
+        public final RunCommandService service = RunCommandService.this;
+    }
+
+    private final IBinder mBinder = new RunCommandService.LocalBinder();
+
+    @Override
+    public IBinder onBind(Intent intent) {
+        return mBinder;
+    }
+
+    @Override
+    public void onCreate() {
+        Logger.logVerbose(LOG_TAG, "onCreate");
+        runStartForeground();
+    }
+
+    @Override
+    public int onStartCommand(Intent intent, int flags, int startId) {
+        Logger.logDebug(LOG_TAG, "onStartCommand");
+
+        if (intent == null) return Service.START_NOT_STICKY;
+
+        // Run again in case service is already started and onCreate() is not called
+        runStartForeground();
+
+        ExecutionCommand executionCommand = new ExecutionCommand();
+        executionCommand.pluginAPIHelp = this.getString(R.string.error_run_command_service_api_help, RUN_COMMAND_SERVICE.RUN_COMMAND_API_HELP_URL);
+
+        String errmsg;
+
+        // If invalid action passed, then just return
+        if (!RUN_COMMAND_SERVICE.ACTION_RUN_COMMAND.equals(intent.getAction())) {
+            errmsg = this.getString(R.string.error_run_command_service_invalid_intent_action, intent.getAction());
+            executionCommand.setStateFailed(ExecutionCommand.RESULT_CODE_FAILED, errmsg, null);
+            PluginUtils.processPluginExecutionCommandError(this, LOG_TAG, executionCommand, false);
+            return Service.START_NOT_STICKY;
+        }
+
+        executionCommand.executable = intent.getStringExtra(RUN_COMMAND_SERVICE.EXTRA_COMMAND_PATH);
+        executionCommand.arguments = intent.getStringArrayExtra(RUN_COMMAND_SERVICE.EXTRA_ARGUMENTS);
+        executionCommand.stdin = intent.getStringExtra(RUN_COMMAND_SERVICE.EXTRA_STDIN);
+        executionCommand.workingDirectory = intent.getStringExtra(RUN_COMMAND_SERVICE.EXTRA_WORKDIR);
+        executionCommand.inBackground = intent.getBooleanExtra(RUN_COMMAND_SERVICE.EXTRA_BACKGROUND, false);
+        executionCommand.sessionAction = intent.getStringExtra(RUN_COMMAND_SERVICE.EXTRA_SESSION_ACTION);
+        executionCommand.commandLabel = DataUtils.getDefaultIfNull(intent.getStringExtra(RUN_COMMAND_SERVICE.EXTRA_COMMAND_LABEL), "RUN_COMMAND Execution Intent Command");
+        executionCommand.commandDescription = intent.getStringExtra(RUN_COMMAND_SERVICE.EXTRA_COMMAND_DESCRIPTION);
+        executionCommand.commandHelp = intent.getStringExtra(RUN_COMMAND_SERVICE.EXTRA_COMMAND_HELP);
+        executionCommand.isPluginExecutionCommand = true;
+        executionCommand.pluginPendingIntent = intent.getParcelableExtra(RUN_COMMAND_SERVICE.EXTRA_PENDING_INTENT);
+
+
+
+        // If "allow-external-apps" property to not set to "true", then just return
+        // We enable force notifications if "allow-external-apps" policy is violated so that the
+        // user knows someone tried to run a command in termux context, since it may be malicious
+        // app or imported (tasker) plugin project and not the user himself. If a pending intent is
+        // also sent, then its creator is also logged and shown.
+        errmsg = PluginUtils.checkIfRunCommandServiceAllowExternalAppsPolicyIsViolated(this);
+        if (errmsg != null) {
+            executionCommand.setStateFailed(ExecutionCommand.RESULT_CODE_FAILED, errmsg, null);
+            PluginUtils.processPluginExecutionCommandError(this, LOG_TAG, executionCommand, true);
+            return Service.START_NOT_STICKY;
+        }
+
+
+
+        // If executable is null or empty, then exit here instead of getting canonical path which would expand to "/"
+        if (executionCommand.executable == null || executionCommand.executable.isEmpty()) {
+            errmsg  = this.getString(R.string.error_run_command_service_mandatory_extra_missing, RUN_COMMAND_SERVICE.EXTRA_COMMAND_PATH);
+            executionCommand.setStateFailed(ExecutionCommand.RESULT_CODE_FAILED, errmsg, null);
+            PluginUtils.processPluginExecutionCommandError(this, LOG_TAG, executionCommand, false);
+            return Service.START_NOT_STICKY;
+        }
+
+        // Get canonical path of executable
+        executionCommand.executable = FileUtils.getCanonicalPath(executionCommand.executable, null, true);
+
+        // If executable is not a regular file, or is not readable or executable, then just return
+        // Setting of missing read and execute permissions is not done
+        errmsg = FileUtils.validateRegularFileExistenceAndPermissions(this, "executable", executionCommand.executable, null,
+            PluginUtils.PLUGIN_EXECUTABLE_FILE_PERMISSIONS, true, true,
+            false);
+        if (errmsg != null) {
+            errmsg  += "\n" + this.getString(R.string.msg_executable_absolute_path, executionCommand.executable);
+            executionCommand.setStateFailed(ExecutionCommand.RESULT_CODE_FAILED, errmsg, null);
+            PluginUtils.processPluginExecutionCommandError(this, LOG_TAG, executionCommand, false);
+            return Service.START_NOT_STICKY;
+        }
+
+
+
+        // If workingDirectory is not null or empty
+        if (executionCommand.workingDirectory != null && !executionCommand.workingDirectory.isEmpty()) {
+            // Get canonical path of workingDirectory
+            executionCommand.workingDirectory = FileUtils.getCanonicalPath(executionCommand.workingDirectory, null, true);
+
+            // If workingDirectory is not a directory, or is not readable or writable, then just return
+            // Creation of missing directory and setting of read, write and execute permissions are only done if workingDirectory is
+            // under {@link TermuxConstants#TERMUX_FILES_DIR_PATH}
+            // We try to set execute permissions, but ignore if they are missing, since only read and write permissions are required
+            // for working directories.
+            errmsg = FileUtils.validateDirectoryFileExistenceAndPermissions(this, "working", executionCommand.workingDirectory, TermuxConstants.TERMUX_FILES_DIR_PATH, true,
+                PluginUtils.PLUGIN_WORKING_DIRECTORY_PERMISSIONS, true, true,
+                true, true);
+            if (errmsg != null) {
+                errmsg  += "\n" + this.getString(R.string.msg_working_directory_absolute_path, executionCommand.workingDirectory);
+                executionCommand.setStateFailed(ExecutionCommand.RESULT_CODE_FAILED, errmsg, null);
+                PluginUtils.processPluginExecutionCommandError(this, LOG_TAG, executionCommand, false);
+                return Service.START_NOT_STICKY;
+            }
+        }
+
+
+
+        executionCommand.executableUri = new Uri.Builder().scheme(TERMUX_SERVICE.URI_SCHEME_SERVICE_EXECUTE).path(FileUtils.getExpandedTermuxPath(executionCommand.executable)).build();
+
+        Logger.logVerbose(LOG_TAG, executionCommand.toString());
+
+        // Create execution intent with the action TERMUX_SERVICE#ACTION_SERVICE_EXECUTE to be sent to the TERMUX_SERVICE
+        Intent execIntent = new Intent(TERMUX_SERVICE.ACTION_SERVICE_EXECUTE, executionCommand.executableUri);
+        execIntent.setClass(this, TermuxService.class);
+        execIntent.putExtra(TERMUX_SERVICE.EXTRA_ARGUMENTS, executionCommand.arguments);
+        execIntent.putExtra(TERMUX_SERVICE.EXTRA_STDIN, executionCommand.stdin);
+        if (executionCommand.workingDirectory != null && !executionCommand.workingDirectory.isEmpty()) execIntent.putExtra(TERMUX_SERVICE.EXTRA_WORKDIR, executionCommand.workingDirectory);
+        execIntent.putExtra(TERMUX_SERVICE.EXTRA_BACKGROUND, executionCommand.inBackground);
+        execIntent.putExtra(TERMUX_SERVICE.EXTRA_SESSION_ACTION, executionCommand.sessionAction);
+        execIntent.putExtra(TERMUX_SERVICE.EXTRA_COMMAND_LABEL, executionCommand.commandLabel);
+        execIntent.putExtra(TERMUX_SERVICE.EXTRA_COMMAND_DESCRIPTION, executionCommand.commandDescription);
+        execIntent.putExtra(TERMUX_SERVICE.EXTRA_COMMAND_HELP, executionCommand.commandHelp);
+        execIntent.putExtra(TERMUX_SERVICE.EXTRA_PLUGIN_API_HELP, executionCommand.pluginAPIHelp);
+        execIntent.putExtra(TERMUX_SERVICE.EXTRA_PENDING_INTENT, executionCommand.pluginPendingIntent);
+
+        // Start TERMUX_SERVICE and pass it execution intent
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            this.startForegroundService(execIntent);
+        } else {
+            this.startService(execIntent);
+        }
+
+        runStopForeground();
+
+        return Service.START_NOT_STICKY;
+    }
+
+    private void runStartForeground() {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            setupNotificationChannel();
+            startForeground(TermuxConstants.TERMUX_RUN_COMMAND_NOTIFICATION_ID, buildNotification());
+        }
+    }
+
+    private void runStopForeground() {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            stopForeground(true);
+        }
+    }
+
+    private Notification buildNotification() {
+        // Build the notification
+        Notification.Builder builder =  NotificationUtils.geNotificationBuilder(this,
+            TermuxConstants.TERMUX_RUN_COMMAND_NOTIFICATION_CHANNEL_ID, Notification.PRIORITY_LOW,
+            TermuxConstants.TERMUX_RUN_COMMAND_NOTIFICATION_CHANNEL_NAME, null, null,
+            null, NotificationUtils.NOTIFICATION_MODE_SILENT);
+        if (builder == null)  return null;
+
+        // No need to show a timestamp:
+        builder.setShowWhen(false);
+
+        // Set notification icon
+        builder.setSmallIcon(R.drawable.ic_service_notification);
+
+        // Set background color for small notification icon
+        builder.setColor(0xFF607D8B);
+
+        return builder.build();
+    }
+
+    private void setupNotificationChannel() {
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) return;
+
+        NotificationUtils.setupNotificationChannel(this, TermuxConstants.TERMUX_RUN_COMMAND_NOTIFICATION_CHANNEL_ID,
+            TermuxConstants.TERMUX_RUN_COMMAND_NOTIFICATION_CHANNEL_NAME, NotificationManager.IMPORTANCE_LOW);
+    }
+
+}
--- a/app/src/main/java/com/termux/app/TermuxActivity.java
+++ b/app/src/main/java/com/termux/app/TermuxActivity.java
--- a/app/src/main/java/com/termux/app/TermuxApplication.java
+++ b/app/src/main/java/com/termux/app/TermuxApplication.java
@@ -0,0 +1,28 @@
+package com.termux.app;
+
+import android.app.Application;
+
+import com.termux.shared.crash.CrashHandler;
+import com.termux.shared.settings.preferences.TermuxAppSharedPreferences;
+import com.termux.shared.logger.Logger;
+
+
+public class TermuxApplication extends Application {
+    public void onCreate() {
+        super.onCreate();
+
+        // Set crash handler for the app
+        CrashHandler.setCrashHandler(this);
+
+        // Set log level for the app
+        setLogLevel();
+    }
+
+    private void setLogLevel() {
+        // Load the log level from shared preferences and set it to the {@link Logger.CURRENT_LOG_LEVEL}
+        TermuxAppSharedPreferences preferences = new TermuxAppSharedPreferences(getApplicationContext());
+        preferences.setLogLevel(null, preferences.getLogLevel());
+        Logger.logDebug("Starting Application");
+    }
+}
+
--- a/app/src/main/java/com/termux/app/TermuxHelpActivity.java
+++ b/app/src/main/java/com/termux/app/TermuxHelpActivity.java
@@ -1,75 +0,0 @@
-package com.termux.app;
-
-import android.app.Activity;
-import android.content.ActivityNotFoundException;
-import android.content.Intent;
-import android.net.Uri;
-import android.os.Bundle;
-import android.view.ViewGroup;
-import android.webkit.WebSettings;
-import android.webkit.WebView;
-import android.webkit.WebViewClient;
-import android.widget.ProgressBar;
-import android.widget.RelativeLayout;
-
-/** Basic embedded browser for viewing help pages. */
-public final class TermuxHelpActivity extends Activity {
-
-	private WebView mWebView;
-
-	@Override
-	protected void onCreate(Bundle savedInstanceState) {
-		super.onCreate(savedInstanceState);
-
-		final RelativeLayout progressLayout = new RelativeLayout(this);
-		RelativeLayout.LayoutParams lParams = new RelativeLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
-		lParams.addRule(RelativeLayout.CENTER_IN_PARENT);
-		ProgressBar progressBar = new ProgressBar(this);
-		progressBar.setIndeterminate(true);
-		progressBar.setLayoutParams(lParams);
-		progressLayout.addView(progressBar);
-
-		mWebView = new WebView(this);
-		WebSettings settings = mWebView.getSettings();
-		settings.setCacheMode(WebSettings.LOAD_NO_CACHE);
-		settings.setAppCacheEnabled(false);
-		setContentView(progressLayout);
-		mWebView.clearCache(true);
-
-		mWebView.setWebViewClient(new WebViewClient() {
-			@Override
-			public boolean shouldOverrideUrlLoading(WebView view, String url) {
-				if (url.startsWith("https://termux.com")) {
-					// Inline help.
-					setContentView(progressLayout);
-					return false;
-				}
-
-				try {
-					startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(url)).addFlags(Intent.FLAG_ACTIVITY_NEW_TASK));
-				} catch (ActivityNotFoundException e) {
-					// Android TV does not have a system browser.
-					setContentView(progressLayout);
-					return false;
-				}
-				return true;
-			}
-
-			@Override
-			public void onPageFinished(WebView view, String url) {
-				setContentView(mWebView);
-			}
-		});
-		mWebView.loadUrl("https://termux.com/help.html");
-	}
-
-	@Override
-	public void onBackPressed() {
-		if (mWebView.canGoBack()) {
-			mWebView.goBack();
-		} else {
-			super.onBackPressed();
-		}
-	}
-
-}
--- a/app/src/main/java/com/termux/app/TermuxInstaller.java
+++ b/app/src/main/java/com/termux/app/TermuxInstaller.java
@@ -4,24 +4,22 @@ import android.app.Activity;
 import android.app.AlertDialog;
 import android.app.ProgressDialog;
 import android.content.Context;
-import android.content.DialogInterface;
-import android.content.DialogInterface.OnClickListener;
-import android.content.DialogInterface.OnDismissListener;
 import android.os.Environment;
+import android.os.UserManager;
 import android.system.Os;
-import android.util.Log;
 import android.util.Pair;
 import android.view.WindowManager;

 import com.termux.R;
-import com.termux.terminal.EmulatorDebug;
+import com.termux.shared.file.FileUtils;
+import com.termux.shared.logger.Logger;
+import com.termux.shared.termux.TermuxConstants;

 import java.io.BufferedReader;
+import java.io.ByteArrayInputStream;
 import java.io.File;
 import java.io.FileOutputStream;
 import java.io.InputStreamReader;
-import java.net.MalformedURLException;
-import java.net.URL;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.zip.ZipEntry;
@@ -29,223 +27,240 @@ import java.util.zip.ZipInputStream;

 /**
 * Install the Termux bootstrap packages if necessary by following the below steps:
- * 
+ * <p/>
 * (1) If $PREFIX already exist, assume that it is correct and be done. Note that this relies on that we do not create a
- * broken $PREFIX folder below.
- * 
+ * broken $PREFIX directory below.
+ * <p/>
 * (2) A progress dialog is shown with "Installing..." message and a spinner.
- * 
- * (3) A staging folder, $STAGING_PREFIX, is {@link #deleteFolder(File)} if left over from broken installation below.
- * 
- * (4) The architecture is determined and an appropriate bootstrap zip url is determined in {@link #determineZipUrl()}.
- * 
+ * <p/>
+ * (3) A staging directory, $STAGING_PREFIX, is cleared if left over from broken installation below.
+ * <p/>
+ * (4) The zip file is loaded from a shared library.
+ * <p/>
 * (5) The zip, containing entries relative to the $PREFIX, is is downloaded and extracted by a zip input stream
- * continously encountering zip file entries:
- * 
+ * continuously encountering zip file entries:
+ * <p/>
 * (5.1) If the zip entry encountered is SYMLINKS.txt, go through it and remember all symlinks to setup.
- * 
+ * <p/>
 * (5.2) For every other zip entry, extract it into $STAGING_PREFIX and set execute permissions if necessary.
 */
 final class TermuxInstaller {

-	/** Performs setup if necessary. */
-	static void setupIfNeeded(final Activity activity, final Runnable whenDone) {
-		// Termux can only be run as the primary user (device owner) since only that
-		// account has the expected file system paths. Verify that:
-		android.os.UserManager um = (android.os.UserManager) activity.getSystemService(Context.USER_SERVICE);
-		boolean isPrimaryUser = um.getSerialNumberForUser(android.os.Process.myUserHandle()) == 0;
-		if (!isPrimaryUser) {
-			new AlertDialog.Builder(activity).setTitle(R.string.bootstrap_error_title).setMessage(R.string.bootstrap_error_not_primary_user_message)
-					.setOnDismissListener(new OnDismissListener() {
-						@Override
-						public void onDismiss(DialogInterface dialog) {
-							System.exit(0);
-						}
-					}).setPositiveButton(android.R.string.ok, null).show();
-			return;
-		}
+    private static final String LOG_TAG = "TermuxInstaller";

-		final File PREFIX_FILE = new File(TermuxService.PREFIX_PATH);
-		if (PREFIX_FILE.isDirectory()) {
-			whenDone.run();
-			return;
-		}
+    /** Performs bootstrap setup if necessary. */
+    static void setupBootstrapIfNeeded(final Activity activity, final Runnable whenDone) {
+        // Termux can only be run as the primary user (device owner) since only that
+        // account has the expected file system paths. Verify that:
+        UserManager um = (UserManager) activity.getSystemService(Context.USER_SERVICE);
+        boolean isPrimaryUser = um.getSerialNumberForUser(android.os.Process.myUserHandle()) == 0;
+        if (!isPrimaryUser) {
+            String bootstrapErrorMessage = activity.getString(R.string.bootstrap_error_not_primary_user_message, TermuxConstants.TERMUX_PREFIX_DIR_PATH);
+            Logger.logError(LOG_TAG, bootstrapErrorMessage);
+            new AlertDialog.Builder(activity).setTitle(R.string.bootstrap_error_title).setMessage(bootstrapErrorMessage)
+                .setOnDismissListener(dialog -> System.exit(0)).setPositiveButton(android.R.string.ok, null).show();
+            return;
+        }

-		final ProgressDialog progress = ProgressDialog.show(activity, null, activity.getString(R.string.bootstrap_installer_body), true, false);
-		new Thread() {
-			@Override
-			public void run() {
-				try {
-					final String STAGING_PREFIX_PATH = TermuxService.FILES_PATH + "/usr-staging";
-					final File STAGING_PREFIX_FILE = new File(STAGING_PREFIX_PATH);
+        final String PREFIX_FILE_PATH = TermuxConstants.TERMUX_PREFIX_DIR_PATH;
+        final File PREFIX_FILE = TermuxConstants.TERMUX_PREFIX_DIR;

-					if (STAGING_PREFIX_FILE.exists()) {
-						deleteFolder(STAGING_PREFIX_FILE);
-					}
+        // If prefix directory exists, even if its a symlink to a valid directory and symlink is not broken/dangling
+        if (FileUtils.directoryFileExists(PREFIX_FILE_PATH, true)) {
+             File[] PREFIX_FILE_LIST =  PREFIX_FILE.listFiles();
+            // If prefix directory is empty or only contains the tmp directory
+             if(PREFIX_FILE_LIST == null || PREFIX_FILE_LIST.length == 0 || (PREFIX_FILE_LIST.length == 1 && TermuxConstants.TERMUX_TMP_PREFIX_DIR_PATH.equals(PREFIX_FILE_LIST[0].getAbsolutePath()))) {
+                 Logger.logInfo(LOG_TAG, "The prefix directory \"" + PREFIX_FILE_PATH + "\" exists but is empty or only contains the tmp directory.");
+             } else {
+                 whenDone.run();
+                 return;
+             }
+        } else if (FileUtils.fileExists(PREFIX_FILE_PATH, false)) {
+            Logger.logInfo(LOG_TAG, "The prefix directory \"" + PREFIX_FILE_PATH + "\" does not exist but another file exists at its destination.");
+        }

-					final byte[] buffer = new byte[8096];
-					final List<Pair<String, String>> symlinks = new ArrayList<>(50);
+        final ProgressDialog progress = ProgressDialog.show(activity, null, activity.getString(R.string.bootstrap_installer_body), true, false);
+        new Thread() {
+            @Override
+            public void run() {
+                try {
+                    Logger.logInfo(LOG_TAG, "Installing " + TermuxConstants.TERMUX_APP_NAME + " bootstrap packages.");

-					final URL zipUrl = determineZipUrl();
-					try (ZipInputStream zipInput = new ZipInputStream(zipUrl.openStream())) {
-						ZipEntry zipEntry;
-						while ((zipEntry = zipInput.getNextEntry()) != null) {
-							if (zipEntry.getName().equals("SYMLINKS.txt")) {
-								BufferedReader symlinksReader = new BufferedReader(new InputStreamReader(zipInput));
-								String line;
-								while ((line = symlinksReader.readLine()) != null) {
-									String[] parts = line.split("←");
-									if (parts.length != 2) throw new RuntimeException("Malformed symlink line: " + line);
-									String oldPath = parts[0];
-									String newPath = STAGING_PREFIX_PATH + "/" + parts[1];
-									symlinks.add(Pair.create(oldPath, newPath));
-								}
-							} else {
-								String zipEntryName = zipEntry.getName();
-								File targetFile = new File(STAGING_PREFIX_PATH, zipEntryName);
-								if (zipEntry.isDirectory()) {
-									if (!targetFile.mkdirs()) throw new RuntimeException("Failed to create directory: " + targetFile.getAbsolutePath());
-								} else {
-									try (FileOutputStream outStream = new FileOutputStream(targetFile)) {
-										int readBytes;
-										while ((readBytes = zipInput.read(buffer)) != -1)
-											outStream.write(buffer, 0, readBytes);
-									}
-									if (zipEntryName.startsWith("bin/") || zipEntryName.startsWith("libexec") || zipEntryName.startsWith("lib/apt/methods")) {
-										//noinspection OctalInteger
-										Os.chmod(targetFile.getAbsolutePath(), 0700);
-									}
-								}
-							}
-						}
-					}
+                    String errmsg;

-					if (symlinks.isEmpty()) throw new RuntimeException("No SYMLINKS.txt encountered");
-					for (Pair<String, String> symlink : symlinks) {
-						Os.symlink(symlink.first, symlink.second);
-					}
+                    final String STAGING_PREFIX_PATH = TermuxConstants.TERMUX_STAGING_PREFIX_DIR_PATH;
+                    final File STAGING_PREFIX_FILE = new File(STAGING_PREFIX_PATH);

-					if (!STAGING_PREFIX_FILE.renameTo(PREFIX_FILE)) {
-						throw new RuntimeException("Unable to rename staging folder");
-					}
+                    // Delete prefix staging directory or any file at its destination
+                    errmsg = FileUtils.deleteFile(activity, "prefix staging directory", STAGING_PREFIX_PATH, true);
+                    if (errmsg != null) {
+                        throw new RuntimeException(errmsg);
+                    }

-					activity.runOnUiThread(new Runnable() {
-						@Override
-						public void run() {
-							whenDone.run();
-						}
-					});
-				} catch (final Exception e) {
-					Log.e(EmulatorDebug.LOG_TAG, "Bootstrap error", e);
-					activity.runOnUiThread(new Runnable() {
-						@Override
-						public void run() {
-							try {
-								new AlertDialog.Builder(activity).setTitle(R.string.bootstrap_error_title).setMessage(R.string.bootstrap_error_body)
-										.setNegativeButton(R.string.bootstrap_error_abort, new OnClickListener() {
-											@Override
-											public void onClick(DialogInterface dialog, int which) {
-												dialog.dismiss();
-												activity.finish();
-											}
-										}).setPositiveButton(R.string.bootstrap_error_try_again, new OnClickListener() {
-									@Override
-									public void onClick(DialogInterface dialog, int which) {
-										dialog.dismiss();
-										TermuxInstaller.setupIfNeeded(activity, whenDone);
-									}
-								}).show();
-							} catch (WindowManager.BadTokenException e) {
-								// Activity already dismissed - ignore.
-							}
-						}
-					});
-				} finally {
-					activity.runOnUiThread(new Runnable() {
-						@Override
-						public void run() {
-							try {
-								progress.dismiss();
-							} catch (RuntimeException e) {
-								// Activity already dismissed - ignore.
-							}
-						}
-					});
-				}
-			}
-		}.start();
-	}
+                    // Delete prefix directory or any file at its destination
+                    errmsg = FileUtils.deleteFile(activity, "prefix directory", PREFIX_FILE_PATH, true);
+                    if (errmsg != null) {
+                        throw new RuntimeException(errmsg);
+                    }

-	/** Get bootstrap zip url for this systems cpu architecture. */
-	static URL determineZipUrl() throws MalformedURLException {
-		String arch = System.getProperty("os.arch");
-		if (arch.startsWith("arm") || arch.equals("aarch64")) {
-			// Handle different arm variants such as armv7l:
-			arch = "arm";
-		} else if (arch.equals("x86_64")) {
-			arch = "i686";
-		}
-		return new URL("https://termux.net/bootstrap/bootstrap-" + arch + ".zip");
-	}
+                    Logger.logInfo(LOG_TAG, "Extracting bootstrap zip to prefix staging directory \"" + STAGING_PREFIX_PATH + "\".");

-	/** Delete a folder and all its content or throw. */
-	static void deleteFolder(File fileOrDirectory) {
-		File[] children = fileOrDirectory.listFiles();
-		if (children != null) {
-			for (File child : children) {
-				deleteFolder(child);
-			}
-		}
-		if (!fileOrDirectory.delete()) {
-			throw new RuntimeException("Unable to delete " + (fileOrDirectory.isDirectory() ? "directory " : "file ") + fileOrDirectory.getAbsolutePath());
-		}
-	}
+                    final byte[] buffer = new byte[8096];
+                    final List<Pair<String, String>> symlinks = new ArrayList<>(50);

-	public static void setupStorageSymlinks(final Context context) {
-		final String LOG_TAG = "termux-storage";
-		new Thread() {
-			public void run() {
-				try {
-					File storageDir = new File(TermuxService.HOME_PATH, "storage");
+                    final byte[] zipBytes = loadZipBytes();
+                    try (ZipInputStream zipInput = new ZipInputStream(new ByteArrayInputStream(zipBytes))) {
+                        ZipEntry zipEntry;
+                        while ((zipEntry = zipInput.getNextEntry()) != null) {
+                            if (zipEntry.getName().equals("SYMLINKS.txt")) {
+                                BufferedReader symlinksReader = new BufferedReader(new InputStreamReader(zipInput));
+                                String line;
+                                while ((line = symlinksReader.readLine()) != null) {
+                                    String[] parts = line.split("←");
+                                    if (parts.length != 2)
+                                        throw new RuntimeException("Malformed symlink line: " + line);
+                                    String oldPath = parts[0];
+                                    String newPath = STAGING_PREFIX_PATH + "/" + parts[1];
+                                    symlinks.add(Pair.create(oldPath, newPath));

-					if (storageDir.exists() && !storageDir.delete()) {
-						Log.e(LOG_TAG, "Could not delete old $HOME/storage");
-						return;
-					}
+                                    ensureDirectoryExists(activity, new File(newPath).getParentFile());
+                                }
+                            } else {
+                                String zipEntryName = zipEntry.getName();
+                                File targetFile = new File(STAGING_PREFIX_PATH, zipEntryName);
+                                boolean isDirectory = zipEntry.isDirectory();

-					if (!storageDir.mkdirs()) {
-						Log.e(LOG_TAG, "Unable to mkdirs() for $HOME/storage");
-						return;
-					}
+                                ensureDirectoryExists(activity, isDirectory ? targetFile : targetFile.getParentFile());

-					File sharedDir = Environment.getExternalStorageDirectory();
-					Os.symlink(sharedDir.getAbsolutePath(), new File(storageDir, "shared").getAbsolutePath());
+                                if (!isDirectory) {
+                                    try (FileOutputStream outStream = new FileOutputStream(targetFile)) {
+                                        int readBytes;
+                                        while ((readBytes = zipInput.read(buffer)) != -1)
+                                            outStream.write(buffer, 0, readBytes);
+                                    }
+                                    if (zipEntryName.startsWith("bin/") || zipEntryName.startsWith("libexec") || zipEntryName.startsWith("lib/apt/methods")) {
+                                        //noinspection OctalInteger
+                                        Os.chmod(targetFile.getAbsolutePath(), 0700);
+                                    }
+                                }
+                            }
+                        }
+                    }

-					File downloadsDir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS);
-					Os.symlink(downloadsDir.getAbsolutePath(), new File(storageDir, "downloads").getAbsolutePath());
+                    if (symlinks.isEmpty())
+                        throw new RuntimeException("No SYMLINKS.txt encountered");
+                    for (Pair<String, String> symlink : symlinks) {
+                        Os.symlink(symlink.first, symlink.second);
+                    }

-					File dcimDir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DCIM);
-					Os.symlink(dcimDir.getAbsolutePath(), new File(storageDir, "dcim").getAbsolutePath());
+                    Logger.logInfo(LOG_TAG, "Moving prefix staging to prefix directory.");

-					File picturesDir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES);
-					Os.symlink(picturesDir.getAbsolutePath(), new File(storageDir, "pictures").getAbsolutePath());
+                    if (!STAGING_PREFIX_FILE.renameTo(PREFIX_FILE)) {
+                        throw new RuntimeException("Moving prefix staging to prefix directory failed");
+                    }

-					File musicDir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_MUSIC);
-					Os.symlink(musicDir.getAbsolutePath(), new File(storageDir, "music").getAbsolutePath());
+                    Logger.logInfo(LOG_TAG, "Bootstrap packages installed successfully.");
+                    activity.runOnUiThread(whenDone);
+                } catch (final Exception e) {
+                    Logger.logStackTraceWithMessage(LOG_TAG, "Bootstrap error", e);
+                    activity.runOnUiThread(() -> {
+                        try {
+                            new AlertDialog.Builder(activity).setTitle(R.string.bootstrap_error_title).setMessage(R.string.bootstrap_error_body)
+                                .setNegativeButton(R.string.bootstrap_error_abort, (dialog, which) -> {
+                                    dialog.dismiss();
+                                    activity.finish();
+                                }).setPositiveButton(R.string.bootstrap_error_try_again, (dialog, which) -> {
+                                dialog.dismiss();
+                                TermuxInstaller.setupBootstrapIfNeeded(activity, whenDone);
+                            }).show();
+                        } catch (WindowManager.BadTokenException e1) {
+                            // Activity already dismissed - ignore.
+                        }
+                    });
+                } finally {
+                    activity.runOnUiThread(() -> {
+                        try {
+                            progress.dismiss();
+                        } catch (RuntimeException e) {
+                            // Activity already dismissed - ignore.
+                        }
+                    });
+                }
+            }
+        }.start();
+    }

-					File moviesDir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_MOVIES);
-					Os.symlink(moviesDir.getAbsolutePath(), new File(storageDir, "movies").getAbsolutePath());
+    static void setupStorageSymlinks(final Context context) {
+        final String LOG_TAG = "termux-storage";

-					final File[] dirs = context.getExternalFilesDirs(null);
-					if (dirs != null && dirs.length >= 2) {
-						final File externalDir = dirs[1];
-						Os.symlink(externalDir.getAbsolutePath(), new File(storageDir, "external").getAbsolutePath());
-					}
-				} catch (Exception e) {
-					Log.e(LOG_TAG, "Error setting up link", e);
-				}
-			}
-		}.start();
-	}
+        Logger.logInfo(LOG_TAG, "Setting up storage symlinks.");
+
+        new Thread() {
+            public void run() {
+                try {
+                    String errmsg;
+                    File storageDir = TermuxConstants.TERMUX_STORAGE_HOME_DIR;
+
+                    errmsg = FileUtils.clearDirectory(context, "~/storage", storageDir.getAbsolutePath());
+                    if (errmsg != null) {
+                        Logger.logErrorAndShowToast(context, LOG_TAG, errmsg);
+                        return;
+                    }
+
+                    Logger.logInfo(LOG_TAG, "Setting up storage symlinks at ~/storage/shared, ~/storage/downloads, ~/storage/dcim, ~/storage/pictures, ~/storage/music and ~/storage/movies for directories in \"" + Environment.getExternalStorageDirectory().getAbsolutePath() + "\".");
+
+                    File sharedDir = Environment.getExternalStorageDirectory();
+                    Os.symlink(sharedDir.getAbsolutePath(), new File(storageDir, "shared").getAbsolutePath());
+
+                    File downloadsDir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS);
+                    Os.symlink(downloadsDir.getAbsolutePath(), new File(storageDir, "downloads").getAbsolutePath());
+
+                    File dcimDir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DCIM);
+                    Os.symlink(dcimDir.getAbsolutePath(), new File(storageDir, "dcim").getAbsolutePath());
+
+                    File picturesDir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES);
+                    Os.symlink(picturesDir.getAbsolutePath(), new File(storageDir, "pictures").getAbsolutePath());
+
+                    File musicDir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_MUSIC);
+                    Os.symlink(musicDir.getAbsolutePath(), new File(storageDir, "music").getAbsolutePath());
+
+                    File moviesDir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_MOVIES);
+                    Os.symlink(moviesDir.getAbsolutePath(), new File(storageDir, "movies").getAbsolutePath());
+
+                    final File[] dirs = context.getExternalFilesDirs(null);
+                    if (dirs != null && dirs.length > 1) {
+                        for (int i = 1; i < dirs.length; i++) {
+                            File dir = dirs[i];
+                            if (dir == null) continue;
+                            String symlinkName = "external-" + i;
+                            Logger.logInfo(LOG_TAG, "Setting up storage symlinks at ~/storage/" + symlinkName + " for \"" + dir.getAbsolutePath() + "\".");
+                            Os.symlink(dir.getAbsolutePath(), new File(storageDir, symlinkName).getAbsolutePath());
+                        }
+                    }
+
+                    Logger.logInfo(LOG_TAG, "Storage symlinks created successfully.");
+                } catch (Exception e) {
+                    Logger.logStackTraceWithMessage(LOG_TAG, "Error setting up link", e);
+                }
+            }
+        }.start();
+    }
+
+    private static void ensureDirectoryExists(Context context, File directory) {
+        String errmsg;
+
+        errmsg = FileUtils.createDirectoryFile(context, directory.getAbsolutePath());
+        if (errmsg != null) {
+            throw new RuntimeException(errmsg);
+        }
+    }
+
+    public static byte[] loadZipBytes() {
+        // Only load the shared library when necessary to save memory usage.
+        System.loadLibrary("termux-bootstrap");
+        return getZip();
+    }
+
+    public static native byte[] getZip();

 }
--- a/app/src/main/java/com/termux/app/TermuxOpenReceiver.java
+++ b/app/src/main/java/com/termux/app/TermuxOpenReceiver.java
@@ -0,0 +1,193 @@
+package com.termux.app;
+
+import android.content.ActivityNotFoundException;
+import android.content.BroadcastReceiver;
+import android.content.ContentValues;
+import android.content.Context;
+import android.content.Intent;
+import android.database.Cursor;
+import android.database.MatrixCursor;
+import android.net.Uri;
+import android.os.Environment;
+import android.os.ParcelFileDescriptor;
+import android.provider.MediaStore;
+import android.webkit.MimeTypeMap;
+
+import com.termux.shared.logger.Logger;
+import com.termux.shared.termux.TermuxConstants;
+
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+
+import androidx.annotation.NonNull;
+
+public class TermuxOpenReceiver extends BroadcastReceiver {
+
+    private static final String LOG_TAG = "TermuxOpenReceiver";
+
+    @Override
+    public void onReceive(Context context, Intent intent) {
+        final Uri data = intent.getData();
+        if (data == null) {
+            Logger.logError(LOG_TAG, "termux-open: Called without intent data");
+            return;
+        }
+
+        final String filePath = data.getPath();
+        final String contentTypeExtra = intent.getStringExtra("content-type");
+        final boolean useChooser = intent.getBooleanExtra("chooser", false);
+        final String intentAction = intent.getAction() == null ? Intent.ACTION_VIEW : intent.getAction();
+        switch (intentAction) {
+            case Intent.ACTION_SEND:
+            case Intent.ACTION_VIEW:
+                // Ok.
+                break;
+            default:
+                Logger.logError(LOG_TAG, "Invalid action '" + intentAction + "', using 'view'");
+                break;
+        }
+
+        final boolean isExternalUrl = data.getScheme() != null && !data.getScheme().equals("file");
+        if (isExternalUrl) {
+            Intent urlIntent = new Intent(intentAction, data);
+            if (intentAction.equals(Intent.ACTION_SEND)) {
+                urlIntent.putExtra(Intent.EXTRA_TEXT, data.toString());
+                urlIntent.setData(null);
+            } else if (contentTypeExtra != null) {
+                urlIntent.setDataAndType(data, contentTypeExtra);
+            }
+            urlIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+            try {
+                context.startActivity(urlIntent);
+            } catch (ActivityNotFoundException e) {
+                Logger.logError(LOG_TAG, "termux-open: No app handles the url " + data);
+            }
+            return;
+        }
+
+        final File fileToShare = new File(filePath);
+        if (!(fileToShare.isFile() && fileToShare.canRead())) {
+            Logger.logError(LOG_TAG, "termux-open: Not a readable file: '" + fileToShare.getAbsolutePath() + "'");
+            return;
+        }
+
+        Intent sendIntent = new Intent();
+        sendIntent.setAction(intentAction);
+        sendIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_GRANT_READ_URI_PERMISSION);
+
+        String contentTypeToUse;
+        if (contentTypeExtra == null) {
+            String fileName = fileToShare.getName();
+            int lastDotIndex = fileName.lastIndexOf('.');
+            String fileExtension = fileName.substring(lastDotIndex + 1);
+            MimeTypeMap mimeTypes = MimeTypeMap.getSingleton();
+            // Lower casing makes it work with e.g. "JPG":
+            contentTypeToUse = mimeTypes.getMimeTypeFromExtension(fileExtension.toLowerCase());
+            if (contentTypeToUse == null) contentTypeToUse = "application/octet-stream";
+        } else {
+            contentTypeToUse = contentTypeExtra;
+        }
+
+        Uri uriToShare = Uri.parse("content://" + TermuxConstants.TERMUX_FILE_SHARE_URI_AUTHORITY + fileToShare.getAbsolutePath());
+
+        if (Intent.ACTION_SEND.equals(intentAction)) {
+            sendIntent.putExtra(Intent.EXTRA_STREAM, uriToShare);
+            sendIntent.setType(contentTypeToUse);
+        } else {
+            sendIntent.setDataAndType(uriToShare, contentTypeToUse);
+        }
+
+        if (useChooser) {
+            sendIntent = Intent.createChooser(sendIntent, null).addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+        }
+
+        try {
+            context.startActivity(sendIntent);
+        } catch (ActivityNotFoundException e) {
+            Logger.logError(LOG_TAG, "termux-open: No app handles the url " + data);
+        }
+    }
+
+    public static class ContentProvider extends android.content.ContentProvider {
+
+        @Override
+        public boolean onCreate() {
+            return true;
+        }
+
+        @Override
+        public Cursor query(@NonNull Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder) {
+            File file = new File(uri.getPath());
+
+            if (projection == null) {
+                projection = new String[]{
+                    MediaStore.MediaColumns.DISPLAY_NAME,
+                    MediaStore.MediaColumns.SIZE,
+                    MediaStore.MediaColumns._ID
+                };
+            }
+
+            Object[] row = new Object[projection.length];
+            for (int i = 0; i < projection.length; i++) {
+                String column = projection[i];
+                Object value;
+                switch (column) {
+                    case MediaStore.MediaColumns.DISPLAY_NAME:
+                        value = file.getName();
+                        break;
+                    case MediaStore.MediaColumns.SIZE:
+                        value = (int) file.length();
+                        break;
+                    case MediaStore.MediaColumns._ID:
+                        value = 1;
+                        break;
+                    default:
+                        value = null;
+                }
+                row[i] = value;
+            }
+
+            MatrixCursor cursor = new MatrixCursor(projection);
+            cursor.addRow(row);
+            return cursor;
+        }
+
+        @Override
+        public String getType(@NonNull Uri uri) {
+            return null;
+        }
+
+        @Override
+        public Uri insert(@NonNull Uri uri, ContentValues values) {
+            return null;
+        }
+
+        @Override
+        public int delete(@NonNull Uri uri, String selection, String[] selectionArgs) {
+            return 0;
+        }
+
+        @Override
+        public int update(@NonNull Uri uri, ContentValues values, String selection, String[] selectionArgs) {
+            return 0;
+        }
+
+        @Override
+        public ParcelFileDescriptor openFile(@NonNull Uri uri, @NonNull String mode) throws FileNotFoundException {
+            File file = new File(uri.getPath());
+            try {
+                String path = file.getCanonicalPath();
+                String storagePath = Environment.getExternalStorageDirectory().getCanonicalPath();
+                // See https://support.google.com/faqs/answer/7496913:
+                if (!(path.startsWith(TermuxConstants.TERMUX_FILES_DIR_PATH) || path.startsWith(storagePath))) {
+                    throw new IllegalArgumentException("Invalid path: " + path);
+                }
+            } catch (IOException e) {
+                throw new IllegalArgumentException(e);
+            }
+            return ParcelFileDescriptor.open(file, ParcelFileDescriptor.MODE_READ_ONLY);
+        }
+    }
+
+}
--- a/app/src/main/java/com/termux/app/TermuxPreferences.java
+++ b/app/src/main/java/com/termux/app/TermuxPreferences.java
@@ -1,142 +0,0 @@
-package com.termux.app;
-
-import android.content.Context;
-import android.content.SharedPreferences;
-import android.preference.PreferenceManager;
-import android.support.annotation.IntDef;
-import android.util.Log;
-import android.util.TypedValue;
-import android.widget.Toast;
-
-import com.termux.terminal.TerminalSession;
-
-import java.io.File;
-import java.io.FileInputStream;
-import java.lang.annotation.Retention;
-import java.lang.annotation.RetentionPolicy;
-import java.util.Properties;
-
-final class TermuxPreferences {
-
-	@IntDef({BELL_VIBRATE, BELL_BEEP, BELL_IGNORE})
-	@Retention(RetentionPolicy.SOURCE)
-	public @interface AsciiBellBehaviour {}
-
-	static final int BELL_VIBRATE = 1;
-	static final int BELL_BEEP = 2;
-	static final int BELL_IGNORE = 3;
-
-	private final int MIN_FONTSIZE;
-	private static final int MAX_FONTSIZE = 256;
-
-	private static final String FULLSCREEN_KEY = "fullscreen";
-	private static final String FONTSIZE_KEY = "fontsize";
-	private static final String CURRENT_SESSION_KEY = "current_session";
-	private static final String SHOW_WELCOME_DIALOG_KEY = "intro_dialog";
-
-	private boolean mFullScreen;
-	private int mFontSize;
-
-	@AsciiBellBehaviour
-	int mBellBehaviour = BELL_VIBRATE;
-
-	boolean mBackIsEscape = true;
-
-	TermuxPreferences(Context context) {
-		reloadFromProperties(context);
-		SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
-
-		float dipInPixels = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 1, context.getResources().getDisplayMetrics());
-
-		// This is a bit arbitrary and sub-optimal. We want to give a sensible default for minimum font size
-		// to prevent invisible text due to zoom be mistake:
-		MIN_FONTSIZE = (int) (4f * dipInPixels);
-
-		mFullScreen = prefs.getBoolean(FULLSCREEN_KEY, false);
-
-		// http://www.google.com/design/spec/style/typography.html#typography-line-height
-		int defaultFontSize = Math.round(12 * dipInPixels);
-		// Make it divisible by 2 since that is the minimal adjustment step:
-		if (defaultFontSize % 2 == 1) defaultFontSize--;
-
-		try {
-			mFontSize = Integer.parseInt(prefs.getString(FONTSIZE_KEY, Integer.toString(defaultFontSize)));
-		} catch (NumberFormatException | ClassCastException e) {
-			mFontSize = defaultFontSize;
-		}
-		mFontSize = Math.max(MIN_FONTSIZE, Math.min(mFontSize, MAX_FONTSIZE));
-	}
-
-	boolean isFullScreen() {
-		return mFullScreen;
-	}
-
-	void setFullScreen(Context context, boolean newValue) {
-		mFullScreen = newValue;
-		SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
-		prefs.edit().putBoolean(FULLSCREEN_KEY, newValue).apply();
-	}
-
-	int getFontSize() {
-		return mFontSize;
-	}
-
-	void changeFontSize(Context context, boolean increase) {
-		mFontSize += (increase ? 1 : -1) * 2;
-		mFontSize = Math.max(MIN_FONTSIZE, Math.min(mFontSize, MAX_FONTSIZE));
-
-		SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
-		prefs.edit().putString(FONTSIZE_KEY, Integer.toString(mFontSize)).apply();
-	}
-
-	static void storeCurrentSession(Context context, TerminalSession session) {
-		PreferenceManager.getDefaultSharedPreferences(context).edit().putString(TermuxPreferences.CURRENT_SESSION_KEY, session.mHandle).commit();
-	}
-
-	static TerminalSession getCurrentSession(TermuxActivity context) {
-		String sessionHandle = PreferenceManager.getDefaultSharedPreferences(context).getString(TermuxPreferences.CURRENT_SESSION_KEY, "");
-		for (int i = 0, len = context.mTermService.getSessions().size(); i < len; i++) {
-			TerminalSession session = context.mTermService.getSessions().get(i);
-			if (session.mHandle.equals(sessionHandle)) return session;
-		}
-		return null;
-	}
-
-	public static boolean isShowWelcomeDialog(Context context) {
-		return PreferenceManager.getDefaultSharedPreferences(context).getBoolean(SHOW_WELCOME_DIALOG_KEY, true);
-	}
-
-	public static void disableWelcomeDialog(Context context) {
-		PreferenceManager.getDefaultSharedPreferences(context).edit().putBoolean(SHOW_WELCOME_DIALOG_KEY, false).apply();
-	}
-
-	public void reloadFromProperties(Context context) {
-		try {
-			File propsFile = new File(TermuxService.HOME_PATH + "/.config/termux/termux.properties");
-			Properties props = new Properties();
-			if (propsFile.isFile() && propsFile.canRead()) {
-				try (FileInputStream in = new FileInputStream(propsFile)) {
-					props.load(in);
-				}
-			}
-
-			switch (props.getProperty("bell-character", "vibrate")) {
-				case "beep":
-					mBellBehaviour = BELL_BEEP;
-					break;
-				case "ignore":
-					mBellBehaviour = BELL_IGNORE;
-					break;
-				default: // "vibrate".
-					mBellBehaviour = BELL_VIBRATE;
-					break;
-			}
-
-			mBackIsEscape = "escape".equals(props.getProperty("back-key", "escape"));
-		} catch (Exception e) {
-			Toast.makeText(context, "Error loading properties: " + e.getMessage(), Toast.LENGTH_LONG).show();
-			Log.e("termux", "Error loading props", e);
-		}
-	}
-
-}
--- a/app/src/main/java/com/termux/app/TermuxService.java
+++ b/app/src/main/java/com/termux/app/TermuxService.java
--- a/app/src/main/java/com/termux/app/activities/HelpActivity.java
+++ b/app/src/main/java/com/termux/app/activities/HelpActivity.java
@@ -0,0 +1,75 @@
+package com.termux.app.activities;
+
+import android.app.Activity;
+import android.content.ActivityNotFoundException;
+import android.content.Intent;
+import android.net.Uri;
+import android.os.Bundle;
+import android.view.ViewGroup;
+import android.webkit.WebSettings;
+import android.webkit.WebView;
+import android.webkit.WebViewClient;
+import android.widget.ProgressBar;
+import android.widget.RelativeLayout;
+
+/** Basic embedded browser for viewing help pages. */
+public final class HelpActivity extends Activity {
+
+    WebView mWebView;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        final RelativeLayout progressLayout = new RelativeLayout(this);
+        RelativeLayout.LayoutParams lParams = new RelativeLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
+        lParams.addRule(RelativeLayout.CENTER_IN_PARENT);
+        ProgressBar progressBar = new ProgressBar(this);
+        progressBar.setIndeterminate(true);
+        progressBar.setLayoutParams(lParams);
+        progressLayout.addView(progressBar);
+
+        mWebView = new WebView(this);
+        WebSettings settings = mWebView.getSettings();
+        settings.setCacheMode(WebSettings.LOAD_NO_CACHE);
+        settings.setAppCacheEnabled(false);
+        setContentView(progressLayout);
+        mWebView.clearCache(true);
+
+        mWebView.setWebViewClient(new WebViewClient() {
+            @Override
+            public boolean shouldOverrideUrlLoading(WebView view, String url) {
+                if (url.startsWith("https://wiki.termux.com")) {
+                    // Inline help.
+                    setContentView(progressLayout);
+                    return false;
+                }
+
+                try {
+                    startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(url)).addFlags(Intent.FLAG_ACTIVITY_NEW_TASK));
+                } catch (ActivityNotFoundException e) {
+                    // Android TV does not have a system browser.
+                    setContentView(progressLayout);
+                    return false;
+                }
+                return true;
+            }
+
+            @Override
+            public void onPageFinished(WebView view, String url) {
+                setContentView(mWebView);
+            }
+        });
+        mWebView.loadUrl("https://wiki.termux.com/wiki/Main_Page");
+    }
+
+    @Override
+    public void onBackPressed() {
+        if (mWebView.canGoBack()) {
+            mWebView.goBack();
+        } else {
+            super.onBackPressed();
+        }
+    }
+
+}
--- a/app/src/main/java/com/termux/app/activities/ReportActivity.java
+++ b/app/src/main/java/com/termux/app/activities/ReportActivity.java
@@ -0,0 +1,180 @@
+package com.termux.app.activities;
+
+import androidx.annotation.NonNull;
+import androidx.appcompat.app.ActionBar;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.appcompat.widget.Toolbar;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+
+import android.content.Context;
+import android.content.Intent;
+import android.os.Bundle;
+import android.view.Menu;
+import android.view.MenuInflater;
+import android.view.MenuItem;
+
+import com.termux.R;
+import com.termux.shared.termux.TermuxConstants;
+import com.termux.shared.markdown.MarkdownUtils;
+import com.termux.shared.interact.ShareUtils;
+import com.termux.app.models.ReportInfo;
+
+import org.commonmark.node.FencedCodeBlock;
+
+import io.noties.markwon.Markwon;
+import io.noties.markwon.recycler.MarkwonAdapter;
+import io.noties.markwon.recycler.SimpleEntry;
+
+public class ReportActivity extends AppCompatActivity {
+
+    private static final String EXTRA_REPORT_INFO = "report_info";
+
+    ReportInfo mReportInfo;
+    String mReportMarkdownString;
+    String mReportActivityMarkdownString;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_report);
+
+        Toolbar toolbar = findViewById(R.id.toolbar);
+        if (toolbar != null) {
+            setSupportActionBar(toolbar);
+        }
+
+        Bundle bundle = null;
+        Intent intent = getIntent();
+        if (intent != null)
+            bundle = intent.getExtras();
+        else if (savedInstanceState != null)
+            bundle = savedInstanceState;
+
+        updateUI(bundle);
+
+    }
+
+    @Override
+    protected void onNewIntent(Intent intent) {
+        super.onNewIntent(intent);
+        setIntent(intent);
+
+        if (intent != null)
+            updateUI(intent.getExtras());
+    }
+
+    private void updateUI(Bundle bundle) {
+
+        if (bundle == null) {
+            finish();
+            return;
+        }
+
+        mReportInfo = (ReportInfo) bundle.getSerializable(EXTRA_REPORT_INFO);
+
+        if (mReportInfo == null) {
+            finish();
+            return;
+        }
+
+
+        final ActionBar actionBar = getSupportActionBar();
+        if (actionBar != null) {
+            if (mReportInfo.reportTitle != null)
+                actionBar.setTitle(mReportInfo.reportTitle);
+            else
+                actionBar.setTitle(TermuxConstants.TERMUX_APP_NAME + " App Report");
+        }
+
+
+        RecyclerView recyclerView = findViewById(R.id.recycler_view);
+
+        final Markwon markwon = MarkdownUtils.getRecyclerMarkwonBuilder(this);
+
+        final MarkwonAdapter adapter = MarkwonAdapter.builderTextViewIsRoot(R.layout.activity_report_adapter_node_default)
+            .include(FencedCodeBlock.class, SimpleEntry.create(R.layout.activity_report_adapter_node_code_block, R.id.code_text_view))
+            .build();
+
+        recyclerView.setLayoutManager(new LinearLayoutManager(this));
+        recyclerView.setAdapter(adapter);
+
+
+        generateReportActivityMarkdownString();
+        adapter.setMarkdown(markwon, mReportActivityMarkdownString);
+        adapter.notifyDataSetChanged();
+    }
+
+
+
+    @Override
+    public void onSaveInstanceState(@NonNull Bundle outState) {
+        super.onSaveInstanceState(outState);
+
+        outState.putSerializable(EXTRA_REPORT_INFO, mReportInfo);
+    }
+
+    @Override
+    public boolean onCreateOptionsMenu(final Menu menu) {
+        final MenuInflater inflater = getMenuInflater();
+        inflater.inflate(R.menu.menu_report, menu);
+        return true;
+    }
+
+    @Override
+    public void onBackPressed() {
+        // Remove activity from recents menu on back button press
+        finishAndRemoveTask();
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(final MenuItem item) {
+        int id = item.getItemId();
+        if (id == R.id.menu_item_share_report) {
+            if (mReportMarkdownString != null)
+                ShareUtils.shareText(this, getString(R.string.title_report_text), mReportMarkdownString);
+        } else if (id == R.id.menu_item_copy_report) {
+            if (mReportMarkdownString != null)
+                ShareUtils.copyTextToClipboard(this, mReportMarkdownString, null);
+        }
+
+        return false;
+    }
+
+    /**
+     * Generate the markdown {@link String} to be shown in {@link ReportActivity}.
+     */
+    private void generateReportActivityMarkdownString() {
+        mReportMarkdownString = ReportInfo.getReportInfoMarkdownString(mReportInfo);
+
+        mReportActivityMarkdownString = "";
+        if (mReportInfo.reportStringPrefix != null)
+            mReportActivityMarkdownString += mReportInfo.reportStringPrefix;
+
+        mReportActivityMarkdownString += mReportMarkdownString;
+
+        if (mReportInfo.reportStringSuffix != null)
+            mReportActivityMarkdownString += mReportInfo.reportStringSuffix;
+    }
+
+
+
+    public static void startReportActivity(@NonNull final Context context, @NonNull final ReportInfo reportInfo) {
+        context.startActivity(newInstance(context, reportInfo));
+    }
+
+    public static Intent newInstance(@NonNull final Context context, @NonNull final ReportInfo reportInfo) {
+        Intent intent = new Intent(context, ReportActivity.class);
+        Bundle bundle = new Bundle();
+        bundle.putSerializable(EXTRA_REPORT_INFO, reportInfo);
+        intent.putExtras(bundle);
+
+        // Note that ReportActivity task has documentLaunchMode="intoExisting" set in AndroidManifest.xml
+        // which has equivalent behaviour to the following. The following dynamic way doesn't seem to
+        // work for notification pending intent, i.e separate task isn't created and activity is
+        // launched in the same task as TermuxActivity.
+        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK |  Intent.FLAG_ACTIVITY_NEW_DOCUMENT);
+        return intent;
+    }
+
+}
--- a/app/src/main/java/com/termux/app/activities/SettingsActivity.java
+++ b/app/src/main/java/com/termux/app/activities/SettingsActivity.java
@@ -0,0 +1,43 @@
+package com.termux.app.activities;
+
+import android.os.Bundle;
+
+import androidx.appcompat.app.ActionBar;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.preference.PreferenceFragmentCompat;
+
+import com.termux.R;
+
+public class SettingsActivity extends AppCompatActivity {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_settings);
+        if (savedInstanceState == null) {
+            getSupportFragmentManager()
+                .beginTransaction()
+                .replace(R.id.settings, new RootPreferencesFragment())
+                .commit();
+        }
+        ActionBar actionBar = getSupportActionBar();
+        if (actionBar != null) {
+            actionBar.setDisplayHomeAsUpEnabled(true);
+            actionBar.setDisplayShowHomeEnabled(true);
+        }
+    }
+
+    @Override
+    public boolean onSupportNavigateUp() {
+        onBackPressed();
+        return true;
+    }
+
+    public static class RootPreferencesFragment extends PreferenceFragmentCompat {
+        @Override
+        public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
+            setPreferencesFromResource(R.xml.root_preferences, rootKey);
+        }
+    }
+
+}
--- a/app/src/main/java/com/termux/app/fragments/settings/DebuggingPreferencesFragment.java
+++ b/app/src/main/java/com/termux/app/fragments/settings/DebuggingPreferencesFragment.java
@@ -0,0 +1,138 @@
+package com.termux.app.fragments.settings;
+
+import android.content.Context;
+import android.os.Bundle;
+
+import androidx.annotation.Keep;
+import androidx.annotation.Nullable;
+import androidx.preference.ListPreference;
+import androidx.preference.PreferenceCategory;
+import androidx.preference.PreferenceDataStore;
+import androidx.preference.PreferenceFragmentCompat;
+import androidx.preference.PreferenceManager;
+
+import com.termux.R;
+import com.termux.shared.settings.preferences.TermuxAppSharedPreferences;
+import com.termux.shared.logger.Logger;
+
+@Keep
+public class DebuggingPreferencesFragment extends PreferenceFragmentCompat {
+
+    @Override
+    public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
+        PreferenceManager preferenceManager = getPreferenceManager();
+        preferenceManager.setPreferenceDataStore(DebuggingPreferencesDataStore.getInstance(getContext()));
+
+        setPreferencesFromResource(R.xml.debugging_preferences, rootKey);
+
+        PreferenceCategory loggingCategory = findPreference("logging");
+
+        if (loggingCategory != null) {
+            final ListPreference logLevelListPreference = setLogLevelListPreferenceData(findPreference("log_level"), getActivity());
+            loggingCategory.addPreference(logLevelListPreference);
+        }
+    }
+
+    protected ListPreference setLogLevelListPreferenceData(ListPreference logLevelListPreference, Context context) {
+        if (logLevelListPreference == null)
+            logLevelListPreference = new ListPreference(context);
+
+        CharSequence[] logLevels = Logger.getLogLevelsArray();
+        CharSequence[] logLevelLabels = Logger.getLogLevelLabelsArray(context, logLevels, true);
+
+        logLevelListPreference.setEntryValues(logLevels);
+        logLevelListPreference.setEntries(logLevelLabels);
+
+        logLevelListPreference.setValue(String.valueOf(Logger.getLogLevel()));
+        logLevelListPreference.setDefaultValue(Logger.getLogLevel());
+
+        return logLevelListPreference;
+    }
+
+}
+
+class DebuggingPreferencesDataStore extends PreferenceDataStore {
+
+    private final Context mContext;
+    private final TermuxAppSharedPreferences mPreferences;
+
+    private static DebuggingPreferencesDataStore mInstance;
+
+    private DebuggingPreferencesDataStore(Context context) {
+        mContext = context;
+        mPreferences = new TermuxAppSharedPreferences(context);
+    }
+
+    public static synchronized DebuggingPreferencesDataStore getInstance(Context context) {
+        if (mInstance == null) {
+            mInstance = new DebuggingPreferencesDataStore(context.getApplicationContext());
+        }
+        return mInstance;
+    }
+
+
+
+    @Override
+    @Nullable
+    public String getString(String key, @Nullable String defValue) {
+        if (key == null) return null;
+
+        switch (key) {
+            case "log_level":
+                return String.valueOf(mPreferences.getLogLevel());
+            default:
+                return null;
+        }
+    }
+
+    @Override
+    public void putString(String key, @Nullable String value) {
+        if (key == null) return;
+
+        switch (key) {
+            case "log_level":
+                if (value != null) {
+                    mPreferences.setLogLevel(mContext, Integer.parseInt(value));
+                }
+                break;
+            default:
+                break;
+        }
+    }
+
+
+
+    @Override
+    public void putBoolean(String key, boolean value) {
+        if (key == null) return;
+
+        switch (key) {
+            case "terminal_view_key_logging_enabled":
+                    mPreferences.setTerminalViewKeyLoggingEnabled(value);
+                break;
+            case "plugin_error_notifications_enabled":
+                mPreferences.setPluginErrorNotificationsEnabled(value);
+                break;
+            case "crash_report_notifications_enabled":
+                mPreferences.setCrashReportNotificationsEnabled(value);
+                break;
+            default:
+                break;
+        }
+    }
+
+    @Override
+    public boolean getBoolean(String key, boolean defValue) {
+        switch (key) {
+            case "terminal_view_key_logging_enabled":
+                return mPreferences.getTerminalViewKeyLoggingEnabled();
+            case "plugin_error_notifications_enabled":
+                return mPreferences.getPluginErrorNotificationsEnabled();
+            case "crash_report_notifications_enabled":
+                return mPreferences.getCrashReportNotificationsEnabled();
+            default:
+                return false;
+        }
+    }
+
+}
--- a/app/src/main/java/com/termux/app/fragments/settings/TerminalIOPreferencesFragment.java
+++ b/app/src/main/java/com/termux/app/fragments/settings/TerminalIOPreferencesFragment.java
@@ -0,0 +1,71 @@
+package com.termux.app.fragments.settings;
+
+import android.content.Context;
+import android.os.Bundle;
+
+import androidx.annotation.Keep;
+import androidx.preference.PreferenceDataStore;
+import androidx.preference.PreferenceFragmentCompat;
+import androidx.preference.PreferenceManager;
+
+import com.termux.R;
+import com.termux.shared.settings.preferences.TermuxAppSharedPreferences;
+
+@Keep
+public class TerminalIOPreferencesFragment extends PreferenceFragmentCompat {
+
+    @Override
+    public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
+        PreferenceManager preferenceManager = getPreferenceManager();
+        preferenceManager.setPreferenceDataStore(TerminalIOPreferencesDataStore.getInstance(getContext()));
+
+        setPreferencesFromResource(R.xml.terminal_io_preferences, rootKey);
+    }
+
+}
+
+class TerminalIOPreferencesDataStore extends PreferenceDataStore {
+
+    private final Context mContext;
+    private final TermuxAppSharedPreferences mPreferences;
+
+    private static TerminalIOPreferencesDataStore mInstance;
+
+    private TerminalIOPreferencesDataStore(Context context) {
+        mContext = context;
+        mPreferences = new TermuxAppSharedPreferences(context);
+    }
+
+    public static synchronized TerminalIOPreferencesDataStore getInstance(Context context) {
+        if (mInstance == null) {
+            mInstance = new TerminalIOPreferencesDataStore(context.getApplicationContext());
+        }
+        return mInstance;
+    }
+
+
+
+    @Override
+    public void putBoolean(String key, boolean value) {
+        if (key == null) return;
+
+        switch (key) {
+            case "soft_keyboard_enabled":
+                    mPreferences.setSoftKeyboardEnabled(value);
+                break;
+            default:
+                break;
+        }
+    }
+
+    @Override
+    public boolean getBoolean(String key, boolean defValue) {
+        switch (key) {
+            case "soft_keyboard_enabled":
+                return mPreferences.getSoftKeyboardEnabled();
+            default:
+                return false;
+        }
+    }
+
+}
--- a/app/src/main/java/com/termux/app/models/ReportInfo.java
+++ b/app/src/main/java/com/termux/app/models/ReportInfo.java
@@ -0,0 +1,64 @@
+package com.termux.app.models;
+
+import com.termux.shared.markdown.MarkdownUtils;
+import com.termux.shared.termux.TermuxUtils;
+
+import java.io.Serializable;
+
+public class ReportInfo implements Serializable {
+
+    /** The user action that was being processed for which the report was generated. */
+    public final UserAction userAction;
+    /** The internal app component that sent the report. */
+    public final String sender;
+    /** The report title. */
+    public final String reportTitle;
+    /** The markdown report text prefix. Will not be part of copy and share operations, etc. */
+    public final String reportStringPrefix;
+    /** The markdown report text. */
+    public final String reportString;
+    /** The markdown report text suffix. Will not be part of copy and share operations, etc. */
+    public final String reportStringSuffix;
+    /** If set to {@code true}, then report, app and device info will be added to the report when
+     * markdown is generated.
+     */
+    public final boolean addReportInfoToMarkdown;
+    /** The timestamp for the report. */
+    public final String reportTimestamp;
+
+    public ReportInfo(UserAction userAction, String sender, String reportTitle, String reportStringPrefix, String reportString, String reportStringSuffix, boolean addReportInfoToMarkdown) {
+        this.userAction = userAction;
+        this.sender = sender;
+        this.reportTitle = reportTitle;
+        this.reportStringPrefix = reportStringPrefix;
+        this.reportString = reportString;
+        this.reportStringSuffix = reportStringSuffix;
+        this.addReportInfoToMarkdown = addReportInfoToMarkdown;
+        this.reportTimestamp = TermuxUtils.getCurrentTimeStamp();
+    }
+
+    /**
+     * Get a markdown {@link String} for {@link ReportInfo}.
+     *
+     * @param reportInfo The {@link ReportInfo} to convert.
+     * @return Returns the markdown {@link String}.
+     */
+    public static String getReportInfoMarkdownString(final ReportInfo reportInfo) {
+        if (reportInfo == null) return "null";
+
+        StringBuilder markdownString = new StringBuilder();
+
+        if (reportInfo.addReportInfoToMarkdown) {
+            markdownString.append("## Report Info\n\n");
+            markdownString.append("\n").append(MarkdownUtils.getSingleLineMarkdownStringEntry("User Action", reportInfo.userAction, "-"));
+            markdownString.append("\n").append(MarkdownUtils.getSingleLineMarkdownStringEntry("Sender", reportInfo.sender, "-"));
+            markdownString.append("\n").append(MarkdownUtils.getSingleLineMarkdownStringEntry("Report Timestamp", reportInfo.reportTimestamp, "-"));
+            markdownString.append("\n##\n\n");
+        }
+
+        markdownString.append(reportInfo.reportString);
+
+        return markdownString.toString();
+    }
+
+}
--- a/app/src/main/java/com/termux/app/models/UserAction.java
+++ b/app/src/main/java/com/termux/app/models/UserAction.java
@@ -0,0 +1,19 @@
+package com.termux.app.models;
+
+public enum UserAction {
+
+    PLUGIN_EXECUTION_COMMAND("plugin execution command"),
+    CRASH_REPORT("crash report"),
+    REPORT_ISSUE_FROM_TRANSCRIPT("report issue from transcript");
+
+    private final String name;
+
+    UserAction(final String name) {
+        this.name = name;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+}
--- a/app/src/main/java/com/termux/app/settings/properties/TermuxAppSharedProperties.java
+++ b/app/src/main/java/com/termux/app/settings/properties/TermuxAppSharedProperties.java
@@ -0,0 +1,99 @@
+package com.termux.app.settings.properties;
+
+import android.content.Context;
+
+import com.termux.app.terminal.io.KeyboardShortcut;
+import com.termux.app.terminal.io.extrakeys.ExtraKeysInfo;
+import com.termux.shared.logger.Logger;
+import com.termux.shared.settings.properties.SharedPropertiesParser;
+import com.termux.shared.settings.properties.TermuxPropertyConstants;
+import com.termux.shared.settings.properties.TermuxSharedProperties;
+
+import org.json.JSONException;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+
+import javax.annotation.Nonnull;
+
+public class TermuxAppSharedProperties extends TermuxSharedProperties implements SharedPropertiesParser {
+
+    private ExtraKeysInfo mExtraKeysInfo;
+    private List<KeyboardShortcut> mSessionShortcuts = new ArrayList<>();
+
+    private static final String LOG_TAG = "TermuxAppSharedProperties";
+
+    public TermuxAppSharedProperties(@Nonnull Context context) {
+        super(context);
+    }
+
+    /**
+     * Reload the termux properties from disk into an in-memory cache.
+     */
+    @Override
+    public void loadTermuxPropertiesFromDisk() {
+        super.loadTermuxPropertiesFromDisk();
+
+        setExtraKeys();
+        setSessionShortcuts();
+    }
+
+    /**
+     * Set the terminal extra keys and style.
+     */
+    private void setExtraKeys() {
+        mExtraKeysInfo = null;
+
+        try {
+            // The mMap stores the extra key and style string values while loading properties
+            // Check {@link #getExtraKeysInternalPropertyValueFromValue(String)} and
+            // {@link #getExtraKeysStyleInternalPropertyValueFromValue(String)}
+            String extrakeys = (String) getInternalPropertyValue(TermuxPropertyConstants.KEY_EXTRA_KEYS, true);
+            String extraKeysStyle = (String) getInternalPropertyValue(TermuxPropertyConstants.KEY_EXTRA_KEYS_STYLE, true);
+            mExtraKeysInfo = new ExtraKeysInfo(extrakeys, extraKeysStyle);
+        } catch (JSONException e) {
+            Logger.showToast(mContext, "Could not load and set the \"" + TermuxPropertyConstants.KEY_EXTRA_KEYS + "\" property from the properties file: " + e.toString(), true);
+            Logger.logStackTraceWithMessage(LOG_TAG, "Could not load and set the \"" + TermuxPropertyConstants.KEY_EXTRA_KEYS + "\" property from the properties file: ", e);
+
+            try {
+                mExtraKeysInfo = new ExtraKeysInfo(TermuxPropertyConstants.DEFAULT_IVALUE_EXTRA_KEYS, TermuxPropertyConstants.DEFAULT_IVALUE_EXTRA_KEYS_STYLE);
+            } catch (JSONException e2) {
+                Logger.showToast(mContext, "Can't create default extra keys",true);
+                Logger.logStackTraceWithMessage(LOG_TAG, "Could create default extra keys: ", e);
+                mExtraKeysInfo = null;
+            }
+        }
+    }
+
+    /**
+     * Set the terminal sessions shortcuts.
+     */
+    private void setSessionShortcuts() {
+        if (mSessionShortcuts == null)
+            mSessionShortcuts = new ArrayList<>();
+        else
+            mSessionShortcuts.clear();
+
+        // The {@link TermuxPropertyConstants#MAP_SESSION_SHORTCUTS} stores the session shortcut key and action pair
+        for (Map.Entry<String, Integer> entry : TermuxPropertyConstants.MAP_SESSION_SHORTCUTS.entrySet()) {
+            // The mMap stores the code points for the session shortcuts while loading properties
+            Integer codePoint = (Integer) getInternalPropertyValue(entry.getKey(), true);
+            // If codePoint is null, then session shortcut did not exist in properties or was invalid
+            // as parsed by {@link #getCodePointForSessionShortcuts(String,String)}
+            // If codePoint is not null, then get the action for the MAP_SESSION_SHORTCUTS key and
+            // add the code point to sessionShortcuts
+            if (codePoint != null)
+                mSessionShortcuts.add(new KeyboardShortcut(codePoint, entry.getValue()));
+        }
+    }
+
+    public List<KeyboardShortcut> getSessionShortcuts() {
+        return mSessionShortcuts;
+    }
+
+    public ExtraKeysInfo getExtraKeysInfo() {
+        return mExtraKeysInfo;
+    }
+
+}
--- a/app/src/main/java/com/termux/app/terminal/TermuxSessionsListViewController.java
+++ b/app/src/main/java/com/termux/app/terminal/TermuxSessionsListViewController.java
@@ -0,0 +1,107 @@
+package com.termux.app.terminal;
+
+import android.annotation.SuppressLint;
+import android.graphics.Color;
+import android.graphics.Paint;
+import android.graphics.Typeface;
+import android.text.SpannableString;
+import android.text.Spanned;
+import android.text.TextUtils;
+import android.text.style.StyleSpan;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.AdapterView;
+import android.widget.ArrayAdapter;
+import android.widget.TextView;
+
+import androidx.annotation.NonNull;
+import androidx.core.content.ContextCompat;
+
+import com.termux.R;
+import com.termux.app.TermuxActivity;
+import com.termux.shared.shell.TermuxSession;
+import com.termux.terminal.TerminalSession;
+
+import java.util.List;
+
+public class TermuxSessionsListViewController extends ArrayAdapter<TermuxSession> implements AdapterView.OnItemClickListener, AdapterView.OnItemLongClickListener {
+
+    final TermuxActivity mActivity;
+
+    final StyleSpan boldSpan = new StyleSpan(Typeface.BOLD);
+    final StyleSpan italicSpan = new StyleSpan(Typeface.ITALIC);
+
+    public TermuxSessionsListViewController(TermuxActivity activity, List<TermuxSession> sessionList) {
+        super(activity.getApplicationContext(), R.layout.item_terminal_sessions_list, sessionList);
+        this.mActivity = activity;
+    }
+
+    @SuppressLint("SetTextI18n")
+    @NonNull
+    @Override
+    public View getView(int position, View convertView, @NonNull ViewGroup parent) {
+        View sessionRowView = convertView;
+        if (sessionRowView == null) {
+            LayoutInflater inflater = mActivity.getLayoutInflater();
+            sessionRowView = inflater.inflate(R.layout.item_terminal_sessions_list, parent, false);
+        }
+
+        TextView sessionTitleView = sessionRowView.findViewById(R.id.session_title);
+
+        TerminalSession sessionAtRow = getItem(position).getTerminalSession();
+        if (sessionAtRow == null) {
+            sessionTitleView.setText("null session");
+            return sessionRowView;
+        }
+
+        boolean isUsingBlackUI = mActivity.getProperties().isUsingBlackUI();
+
+        if (isUsingBlackUI) {
+            sessionTitleView.setBackground(
+                ContextCompat.getDrawable(mActivity, R.drawable.session_background_black_selected)
+            );
+        }
+
+        String name = sessionAtRow.mSessionName;
+        String sessionTitle = sessionAtRow.getTitle();
+
+        String numberPart = "[" + (position + 1) + "] ";
+        String sessionNamePart = (TextUtils.isEmpty(name) ? "" : name);
+        String sessionTitlePart = (TextUtils.isEmpty(sessionTitle) ? "" : ((sessionNamePart.isEmpty() ? "" : "\n") + sessionTitle));
+
+        String fullSessionTitle = numberPart + sessionNamePart + sessionTitlePart;
+        SpannableString fullSessionTitleStyled = new SpannableString(fullSessionTitle);
+        fullSessionTitleStyled.setSpan(boldSpan, 0, numberPart.length() + sessionNamePart.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
+        fullSessionTitleStyled.setSpan(italicSpan, numberPart.length() + sessionNamePart.length(), fullSessionTitle.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
+
+        sessionTitleView.setText(fullSessionTitleStyled);
+
+        boolean sessionRunning = sessionAtRow.isRunning();
+
+        if (sessionRunning) {
+            sessionTitleView.setPaintFlags(sessionTitleView.getPaintFlags() & ~Paint.STRIKE_THRU_TEXT_FLAG);
+        } else {
+            sessionTitleView.setPaintFlags(sessionTitleView.getPaintFlags() | Paint.STRIKE_THRU_TEXT_FLAG);
+        }
+        int defaultColor = isUsingBlackUI ? Color.WHITE : Color.BLACK;
+        int color = sessionRunning || sessionAtRow.getExitStatus() == 0 ? defaultColor : Color.RED;
+        sessionTitleView.setTextColor(color);
+        return sessionRowView;
+    }
+
+    @Override
+    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
+        TermuxSession clickedSession = getItem(position);
+        mActivity.getTermuxTerminalSessionClient().setCurrentSession(clickedSession.getTerminalSession());
+        mActivity.getDrawer().closeDrawers();
+    }
+
+    @Override
+    public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) {
+        final TermuxSession selectedSession = getItem(position);
+        mActivity.getTermuxTerminalSessionClient().renameSession(selectedSession.getTerminalSession());
+        return true;
+    }
+
+}
--- a/app/src/main/java/com/termux/app/terminal/TermuxTerminalSessionClient.java
+++ b/app/src/main/java/com/termux/app/terminal/TermuxTerminalSessionClient.java
@@ -0,0 +1,343 @@
+package com.termux.app.terminal;
+
+import android.annotation.SuppressLint;
+import android.app.AlertDialog;
+import android.content.ClipData;
+import android.content.ClipboardManager;
+import android.content.Context;
+import android.content.pm.PackageManager;
+import android.graphics.Typeface;
+import android.media.AudioAttributes;
+import android.media.SoundPool;
+import android.text.TextUtils;
+import android.widget.ListView;
+
+import com.termux.R;
+import com.termux.shared.shell.TermuxSession;
+import com.termux.shared.interact.DialogUtils;
+import com.termux.app.TermuxActivity;
+import com.termux.shared.terminal.TermuxTerminalSessionClientBase;
+import com.termux.shared.termux.TermuxConstants;
+import com.termux.app.TermuxService;
+import com.termux.shared.settings.properties.TermuxPropertyConstants;
+import com.termux.app.terminal.io.BellHandler;
+import com.termux.shared.logger.Logger;
+import com.termux.terminal.TerminalColors;
+import com.termux.terminal.TerminalSession;
+import com.termux.terminal.TextStyle;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.InputStream;
+import java.util.Properties;
+
+public class TermuxTerminalSessionClient extends TermuxTerminalSessionClientBase {
+
+    private final TermuxActivity mActivity;
+
+    private static final int MAX_SESSIONS = 8;
+
+    private final SoundPool mBellSoundPool = new SoundPool.Builder().setMaxStreams(1).setAudioAttributes(
+        new AudioAttributes.Builder().setContentType(AudioAttributes.CONTENT_TYPE_SONIFICATION)
+            .setUsage(AudioAttributes.USAGE_ASSISTANCE_SONIFICATION).build()).build();
+
+    private final int mBellSoundId;
+
+    private static final String LOG_TAG = "TermuxTerminalSessionClient";
+
+    public TermuxTerminalSessionClient(TermuxActivity activity) {
+        this.mActivity = activity;
+
+        mBellSoundId = mBellSoundPool.load(activity, R.raw.bell, 1);
+    }
+
+    @Override
+    public void onTextChanged(TerminalSession changedSession) {
+        if (!mActivity.isVisible()) return;
+
+        if (mActivity.getCurrentSession() == changedSession) mActivity.getTerminalView().onScreenUpdated();
+    }
+
+    @Override
+    public void onTitleChanged(TerminalSession updatedSession) {
+        if (!mActivity.isVisible()) return;
+
+        if (updatedSession != mActivity.getCurrentSession()) {
+            // Only show toast for other sessions than the current one, since the user
+            // probably consciously caused the title change to change in the current session
+            // and don't want an annoying toast for that.
+            mActivity.showToast(toToastTitle(updatedSession), true);
+        }
+
+        termuxSessionListNotifyUpdated();
+    }
+
+    @Override
+    public void onSessionFinished(final TerminalSession finishedSession) {
+        if (mActivity.getTermuxService().wantsToStop()) {
+            // The service wants to stop as soon as possible.
+            mActivity.finishActivityIfNotFinishing();
+            return;
+        }
+
+        if (mActivity.isVisible() && finishedSession != mActivity.getCurrentSession()) {
+            // Show toast for non-current sessions that exit.
+            int indexOfSession = mActivity.getTermuxService().getIndexOfSession(finishedSession);
+            // Verify that session was not removed before we got told about it finishing:
+            if (indexOfSession >= 0)
+                mActivity.showToast(toToastTitle(finishedSession) + " - exited", true);
+        }
+
+        if (mActivity.getPackageManager().hasSystemFeature(PackageManager.FEATURE_LEANBACK)) {
+            // On Android TV devices we need to use older behaviour because we may
+            // not be able to have multiple launcher icons.
+            if (mActivity.getTermuxService().getTermuxSessionsSize() > 1) {
+                removeFinishedSession(finishedSession);
+            }
+        } else {
+            // Once we have a separate launcher icon for the failsafe session, it
+            // should be safe to auto-close session on exit code '0' or '130'.
+            if (finishedSession.getExitStatus() == 0 || finishedSession.getExitStatus() == 130) {
+                removeFinishedSession(finishedSession);
+            }
+        }
+    }
+
+    @Override
+    public void onClipboardText(TerminalSession session, String text) {
+        if (!mActivity.isVisible()) return;
+
+        ClipboardManager clipboard = (ClipboardManager) mActivity.getSystemService(Context.CLIPBOARD_SERVICE);
+        clipboard.setPrimaryClip(new ClipData(null, new String[]{"text/plain"}, new ClipData.Item(text)));
+    }
+
+    @Override
+    public void onBell(TerminalSession session) {
+        if (!mActivity.isVisible()) return;
+
+        switch (mActivity.getProperties().getBellBehaviour()) {
+            case TermuxPropertyConstants.IVALUE_BELL_BEHAVIOUR_VIBRATE:
+                BellHandler.getInstance(mActivity).doBell();
+                break;
+            case TermuxPropertyConstants.IVALUE_BELL_BEHAVIOUR_BEEP:
+                mBellSoundPool.play(mBellSoundId, 1.f, 1.f, 1, 0, 1.f);
+                break;
+            case TermuxPropertyConstants.IVALUE_BELL_BEHAVIOUR_IGNORE:
+                // Ignore the bell character.
+                break;
+        }
+
+    }
+
+    @Override
+    public void onColorsChanged(TerminalSession changedSession) {
+        if (mActivity.getCurrentSession() == changedSession)
+            updateBackgroundColor();
+    }
+
+
+
+    /** Try switching to session. */
+    public void setCurrentSession(TerminalSession session) {
+        if (session == null) return;
+
+        if (mActivity.getTerminalView().attachSession(session)) {
+            // notify about switched session if not already displaying the session
+            notifyOfSessionChange();
+        }
+
+        // We call the following even when the session is already being displayed since config may
+        // be stale, like current session not selected or scrolled to.
+        checkAndScrollToSession(session);
+        updateBackgroundColor();
+    }
+
+    void notifyOfSessionChange() {
+        if (!mActivity.isVisible()) return;
+
+        TerminalSession session = mActivity.getCurrentSession();
+        mActivity.showToast(toToastTitle(session), false);
+    }
+
+    public void switchToSession(boolean forward) {
+        TermuxService service = mActivity.getTermuxService();
+
+        TerminalSession currentTerminalSession = mActivity.getCurrentSession();
+        int index = service.getIndexOfSession(currentTerminalSession);
+        int size = service.getTermuxSessionsSize();
+        if (forward) {
+            if (++index >= size) index = 0;
+        } else {
+            if (--index < 0) index = size - 1;
+        }
+
+        TermuxSession termuxSession = service.getTermuxSession(index);
+        if (termuxSession != null)
+            setCurrentSession(termuxSession.getTerminalSession());
+    }
+
+    public void switchToSession(int index) {
+        TermuxSession termuxSession = mActivity.getTermuxService().getTermuxSession(index);
+        if (termuxSession != null)
+            setCurrentSession(termuxSession.getTerminalSession());
+    }
+
+    @SuppressLint("InflateParams")
+    public void renameSession(final TerminalSession sessionToRename) {
+        if (sessionToRename == null) return;
+
+        DialogUtils.textInput(mActivity, R.string.title_rename_session, sessionToRename.mSessionName, R.string.action_rename_session_confirm, text -> {
+            sessionToRename.mSessionName = text;
+            termuxSessionListNotifyUpdated();
+        }, -1, null, -1, null, null);
+    }
+
+    public void addNewSession(boolean isFailSafe, String sessionName) {
+        if (mActivity.getTermuxService().getTermuxSessionsSize() >= MAX_SESSIONS) {
+            new AlertDialog.Builder(mActivity).setTitle(R.string.title_max_terminals_reached).setMessage(R.string.msg_max_terminals_reached)
+                .setPositiveButton(android.R.string.ok, null).show();
+        } else {
+            TerminalSession currentSession = mActivity.getCurrentSession();
+
+            String workingDirectory;
+            if (currentSession == null) {
+                workingDirectory = mActivity.getProperties().getDefaultWorkingDirectory();
+            } else {
+                workingDirectory = currentSession.getCwd();
+            }
+
+            TermuxSession newTermuxSession = mActivity.getTermuxService().createTermuxSession(null, null, null, workingDirectory, isFailSafe, sessionName);
+            if (newTermuxSession == null) return;
+
+            TerminalSession newTerminalSession = newTermuxSession.getTerminalSession();
+            setCurrentSession(newTerminalSession);
+
+            mActivity.getDrawer().closeDrawers();
+        }
+    }
+
+    public void setCurrentStoredSession() {
+        TerminalSession currentSession = mActivity.getCurrentSession();
+        if (currentSession != null)
+            mActivity.getPreferences().setCurrentSession(currentSession.mHandle);
+        else
+            mActivity.getPreferences().setCurrentSession(null);
+    }
+
+    /** The current session as stored or the last one if that does not exist. */
+    public TerminalSession getCurrentStoredSessionOrLast() {
+        TerminalSession stored = getCurrentStoredSession(mActivity);
+
+        if (stored != null) {
+            // If a stored session is in the list of currently running sessions, then return it
+            return stored;
+        } else {
+            // Else return the last session currently running
+            TermuxSession termuxSession = mActivity.getTermuxService().getLastTermuxSession();
+            if (termuxSession != null)
+                return termuxSession.getTerminalSession();
+            else
+                return null;
+        }
+    }
+
+    private TerminalSession getCurrentStoredSession(TermuxActivity context) {
+        String sessionHandle = mActivity.getPreferences().getCurrentSession();
+
+        // If no session is stored in shared preferences
+        if (sessionHandle == null)
+            return null;
+
+        // Check if the session handle found matches one of the currently running sessions
+        return context.getTermuxService().getTerminalSessionForHandle(sessionHandle);
+    }
+
+    public void removeFinishedSession(TerminalSession finishedSession) {
+        // Return pressed with finished session - remove it.
+        TermuxService service = mActivity.getTermuxService();
+
+        int index = service.removeTermuxSession(finishedSession);
+
+        int size = mActivity.getTermuxService().getTermuxSessionsSize();
+        if (size == 0) {
+            // There are no sessions to show, so finish the activity.
+            mActivity.finishActivityIfNotFinishing();
+        } else {
+            if (index >= size) {
+                index = size - 1;
+            }
+            TermuxSession termuxSession = service.getTermuxSession(index);
+            if (termuxSession != null)
+                setCurrentSession(termuxSession.getTerminalSession());
+        }
+    }
+
+    public void termuxSessionListNotifyUpdated() {
+        mActivity.termuxSessionListNotifyUpdated();
+    }
+
+    public void checkAndScrollToSession(TerminalSession session) {
+        if (!mActivity.isVisible()) return;
+        final int indexOfSession = mActivity.getTermuxService().getIndexOfSession(session);
+        if (indexOfSession < 0) return;
+        final ListView termuxSessionsListView = mActivity.findViewById(R.id.terminal_sessions_list);
+        if (termuxSessionsListView == null) return;
+
+        termuxSessionsListView.setItemChecked(indexOfSession, true);
+        // Delay is necessary otherwise sometimes scroll to newly added session does not happen
+        termuxSessionsListView.postDelayed(() -> termuxSessionsListView.smoothScrollToPosition(indexOfSession), 1000);
+    }
+
+
+    String toToastTitle(TerminalSession session) {
+        final int indexOfSession = mActivity.getTermuxService().getIndexOfSession(session);
+        if (indexOfSession < 0) return null;
+        StringBuilder toastTitle = new StringBuilder("[" + (indexOfSession + 1) + "]");
+        if (!TextUtils.isEmpty(session.mSessionName)) {
+            toastTitle.append(" ").append(session.mSessionName);
+        }
+        String title = session.getTitle();
+        if (!TextUtils.isEmpty(title)) {
+            // Space to "[${NR}] or newline after session name:
+            toastTitle.append(session.mSessionName == null ? " " : "\n");
+            toastTitle.append(title);
+        }
+        return toastTitle.toString();
+    }
+
+
+    public void checkForFontAndColors() {
+        try {
+            File colorsFile = TermuxConstants.TERMUX_COLOR_PROPERTIES_FILE;
+            File fontFile = TermuxConstants.TERMUX_FONT_FILE;
+
+            final Properties props = new Properties();
+            if (colorsFile.isFile()) {
+                try (InputStream in = new FileInputStream(colorsFile)) {
+                    props.load(in);
+                }
+            }
+
+            TerminalColors.COLOR_SCHEME.updateWith(props);
+            TerminalSession session = mActivity.getCurrentSession();
+            if (session != null && session.getEmulator() != null) {
+                session.getEmulator().mColors.reset();
+            }
+            updateBackgroundColor();
+
+            final Typeface newTypeface = (fontFile.exists() && fontFile.length() > 0) ? Typeface.createFromFile(fontFile) : Typeface.MONOSPACE;
+            mActivity.getTerminalView().setTypeface(newTypeface);
+        } catch (Exception e) {
+            Logger.logStackTraceWithMessage(LOG_TAG, "Error in checkForFontAndColors()", e);
+        }
+    }
+
+    public void updateBackgroundColor() {
+        if (!mActivity.isVisible()) return;
+        TerminalSession session = mActivity.getCurrentSession();
+        if (session != null && session.getEmulator() != null) {
+            mActivity.getWindow().getDecorView().setBackgroundColor(session.getEmulator().mColors.mCurrentColors[TextStyle.COLOR_INDEX_BACKGROUND]);
+        }
+    }
+
+}
--- a/app/src/main/java/com/termux/app/terminal/TermuxTerminalViewClient.java
+++ b/app/src/main/java/com/termux/app/terminal/TermuxTerminalViewClient.java
@@ -0,0 +1,443 @@
+package com.termux.app.terminal;
+
+import android.annotation.SuppressLint;
+import android.app.AlertDialog;
+import android.content.ActivityNotFoundException;
+import android.content.ClipData;
+import android.content.ClipboardManager;
+import android.content.Context;
+import android.content.Intent;
+import android.media.AudioManager;
+import android.net.Uri;
+import android.text.TextUtils;
+import android.view.Gravity;
+import android.view.InputDevice;
+import android.view.KeyEvent;
+import android.view.MotionEvent;
+import android.view.inputmethod.InputMethodManager;
+import android.widget.ListView;
+import android.widget.Toast;
+
+import com.termux.R;
+import com.termux.app.TermuxActivity;
+import com.termux.shared.shell.ShellUtils;
+import com.termux.shared.terminal.TermuxTerminalViewClientBase;
+import com.termux.shared.termux.TermuxConstants;
+import com.termux.app.activities.ReportActivity;
+import com.termux.app.models.ReportInfo;
+import com.termux.app.models.UserAction;
+import com.termux.app.terminal.io.KeyboardShortcut;
+import com.termux.app.terminal.io.extrakeys.ExtraKeysView;
+import com.termux.shared.settings.properties.TermuxPropertyConstants;
+import com.termux.shared.data.DataUtils;
+import com.termux.shared.logger.Logger;
+import com.termux.shared.markdown.MarkdownUtils;
+import com.termux.shared.termux.TermuxUtils;
+import com.termux.terminal.KeyHandler;
+import com.termux.terminal.TerminalEmulator;
+import com.termux.terminal.TerminalSession;
+
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.LinkedHashSet;
+import java.util.List;
+
+import androidx.drawerlayout.widget.DrawerLayout;
+
+public class TermuxTerminalViewClient extends TermuxTerminalViewClientBase {
+
+    final TermuxActivity mActivity;
+
+    final TermuxTerminalSessionClient mTermuxTerminalSessionClient;
+
+    /** Keeping track of the special keys acting as Ctrl and Fn for the soft keyboard and other hardware keys. */
+    boolean mVirtualControlKeyDown, mVirtualFnKeyDown;
+
+    public TermuxTerminalViewClient(TermuxActivity activity, TermuxTerminalSessionClient termuxTerminalSessionClient) {
+        this.mActivity = activity;
+        this.mTermuxTerminalSessionClient = termuxTerminalSessionClient;
+    }
+
+    @Override
+    public float onScale(float scale) {
+        if (scale < 0.9f || scale > 1.1f) {
+            boolean increase = scale > 1.f;
+            changeFontSize(increase);
+            return 1.0f;
+        }
+        return scale;
+    }
+
+
+
+    @Override
+    public void onSingleTapUp(MotionEvent e) {
+        InputMethodManager mgr = (InputMethodManager) mActivity.getSystemService(Context.INPUT_METHOD_SERVICE);
+        mgr.showSoftInput(mActivity.getTerminalView(), InputMethodManager.SHOW_IMPLICIT);
+    }
+
+    @Override
+    public boolean shouldBackButtonBeMappedToEscape() {
+        return mActivity.getProperties().isBackKeyTheEscapeKey();
+    }
+
+    @Override
+    public boolean shouldEnforceCharBasedInput() {
+        return mActivity.getProperties().isEnforcingCharBasedInput();
+    }
+
+    @Override
+    public boolean shouldUseCtrlSpaceWorkaround() {
+        return mActivity.getProperties().isUsingCtrlSpaceWorkaround();
+    }
+
+
+
+    @Override
+    public void copyModeChanged(boolean copyMode) {
+        // Disable drawer while copying.
+        mActivity.getDrawer().setDrawerLockMode(copyMode ? DrawerLayout.LOCK_MODE_LOCKED_CLOSED : DrawerLayout.LOCK_MODE_UNLOCKED);
+    }
+
+
+
+    @SuppressLint("RtlHardcoded")
+    @Override
+    public boolean onKeyDown(int keyCode, KeyEvent e, TerminalSession currentSession) {
+        if (handleVirtualKeys(keyCode, e, true)) return true;
+
+        if (keyCode == KeyEvent.KEYCODE_ENTER && !currentSession.isRunning()) {
+            mTermuxTerminalSessionClient.removeFinishedSession(currentSession);
+            return true;
+        } else if (e.isCtrlPressed() && e.isAltPressed()) {
+            // Get the unmodified code point:
+            int unicodeChar = e.getUnicodeChar(0);
+
+            if (keyCode == KeyEvent.KEYCODE_DPAD_DOWN || unicodeChar == 'n'/* next */) {
+                mTermuxTerminalSessionClient.switchToSession(true);
+            } else if (keyCode == KeyEvent.KEYCODE_DPAD_UP || unicodeChar == 'p' /* previous */) {
+                mTermuxTerminalSessionClient.switchToSession(false);
+            } else if (keyCode == KeyEvent.KEYCODE_DPAD_RIGHT) {
+                mActivity.getDrawer().openDrawer(Gravity.LEFT);
+            } else if (keyCode == KeyEvent.KEYCODE_DPAD_LEFT) {
+                mActivity.getDrawer().closeDrawers();
+            } else if (unicodeChar == 'k'/* keyboard */) {
+                InputMethodManager imm = (InputMethodManager) mActivity.getSystemService(Context.INPUT_METHOD_SERVICE);
+                imm.toggleSoftInput(InputMethodManager.SHOW_FORCED, 0);
+            } else if (unicodeChar == 'm'/* menu */) {
+                mActivity.getTerminalView().showContextMenu();
+            } else if (unicodeChar == 'r'/* rename */) {
+                mTermuxTerminalSessionClient.renameSession(currentSession);
+            } else if (unicodeChar == 'c'/* create */) {
+                mTermuxTerminalSessionClient.addNewSession(false, null);
+            } else if (unicodeChar == 'u' /* urls */) {
+                showUrlSelection();
+            } else if (unicodeChar == 'v') {
+                doPaste();
+            } else if (unicodeChar == '+' || e.getUnicodeChar(KeyEvent.META_SHIFT_ON) == '+') {
+                // We also check for the shifted char here since shift may be required to produce '+',
+                // see https://github.com/termux/termux-api/issues/2
+                changeFontSize(true);
+            } else if (unicodeChar == '-') {
+                changeFontSize(false);
+            } else if (unicodeChar >= '1' && unicodeChar <= '9') {
+                int index = unicodeChar - '1';
+                mTermuxTerminalSessionClient.switchToSession(index);
+            }
+            return true;
+        }
+
+        return false;
+
+    }
+
+    @Override
+    public boolean onKeyUp(int keyCode, KeyEvent e) {
+        return handleVirtualKeys(keyCode, e, false);
+    }
+
+    /** Handle dedicated volume buttons as virtual keys if applicable. */
+    private boolean handleVirtualKeys(int keyCode, KeyEvent event, boolean down) {
+        InputDevice inputDevice = event.getDevice();
+        if (mActivity.getProperties().areVirtualVolumeKeysDisabled()) {
+            return false;
+        } else if (inputDevice != null && inputDevice.getKeyboardType() == InputDevice.KEYBOARD_TYPE_ALPHABETIC) {
+            // Do not steal dedicated buttons from a full external keyboard.
+            return false;
+        } else if (keyCode == KeyEvent.KEYCODE_VOLUME_DOWN) {
+            mVirtualControlKeyDown = down;
+            return true;
+        } else if (keyCode == KeyEvent.KEYCODE_VOLUME_UP) {
+            mVirtualFnKeyDown = down;
+            return true;
+        }
+        return false;
+    }
+
+
+
+    @Override
+    public boolean readControlKey() {
+        return (mActivity.getExtraKeysView() != null && mActivity.getExtraKeysView().readSpecialButton(ExtraKeysView.SpecialButton.CTRL)) || mVirtualControlKeyDown;
+    }
+
+    @Override
+    public boolean readAltKey() {
+        return (mActivity.getExtraKeysView() != null && mActivity.getExtraKeysView().readSpecialButton(ExtraKeysView.SpecialButton.ALT));
+    }
+
+    @Override
+    public boolean onLongPress(MotionEvent event) {
+        return false;
+    }
+
+
+
+    @Override
+    public boolean onCodePoint(final int codePoint, boolean ctrlDown, TerminalSession session) {
+        if (mVirtualFnKeyDown) {
+            int resultingKeyCode = -1;
+            int resultingCodePoint = -1;
+            boolean altDown = false;
+            int lowerCase = Character.toLowerCase(codePoint);
+            switch (lowerCase) {
+                // Arrow keys.
+                case 'w':
+                    resultingKeyCode = KeyEvent.KEYCODE_DPAD_UP;
+                    break;
+                case 'a':
+                    resultingKeyCode = KeyEvent.KEYCODE_DPAD_LEFT;
+                    break;
+                case 's':
+                    resultingKeyCode = KeyEvent.KEYCODE_DPAD_DOWN;
+                    break;
+                case 'd':
+                    resultingKeyCode = KeyEvent.KEYCODE_DPAD_RIGHT;
+                    break;
+
+                // Page up and down.
+                case 'p':
+                    resultingKeyCode = KeyEvent.KEYCODE_PAGE_UP;
+                    break;
+                case 'n':
+                    resultingKeyCode = KeyEvent.KEYCODE_PAGE_DOWN;
+                    break;
+
+                // Some special keys:
+                case 't':
+                    resultingKeyCode = KeyEvent.KEYCODE_TAB;
+                    break;
+                case 'i':
+                    resultingKeyCode = KeyEvent.KEYCODE_INSERT;
+                    break;
+                case 'h':
+                    resultingCodePoint = '~';
+                    break;
+
+                // Special characters to input.
+                case 'u':
+                    resultingCodePoint = '_';
+                    break;
+                case 'l':
+                    resultingCodePoint = '|';
+                    break;
+
+                // Function keys.
+                case '1':
+                case '2':
+                case '3':
+                case '4':
+                case '5':
+                case '6':
+                case '7':
+                case '8':
+                case '9':
+                    resultingKeyCode = (codePoint - '1') + KeyEvent.KEYCODE_F1;
+                    break;
+                case '0':
+                    resultingKeyCode = KeyEvent.KEYCODE_F10;
+                    break;
+
+                // Other special keys.
+                case 'e':
+                    resultingCodePoint = /*Escape*/ 27;
+                    break;
+                case '.':
+                    resultingCodePoint = /*^.*/ 28;
+                    break;
+
+                case 'b': // alt+b, jumping backward in readline.
+                case 'f': // alf+f, jumping forward in readline.
+                case 'x': // alt+x, common in emacs.
+                    resultingCodePoint = lowerCase;
+                    altDown = true;
+                    break;
+
+                // Volume control.
+                case 'v':
+                    resultingCodePoint = -1;
+                    AudioManager audio = (AudioManager) mActivity.getSystemService(Context.AUDIO_SERVICE);
+                    audio.adjustSuggestedStreamVolume(AudioManager.ADJUST_SAME, AudioManager.USE_DEFAULT_STREAM_TYPE, AudioManager.FLAG_SHOW_UI);
+                    break;
+
+                // Writing mode:
+                case 'q':
+                case 'k':
+                    mActivity.toggleTerminalToolbar();
+                    mVirtualFnKeyDown=false; // force disable fn key down to restore keyboard input into terminal view, fixes termux/termux-app#1420
+                    break;
+            }
+
+            if (resultingKeyCode != -1) {
+                TerminalEmulator term = session.getEmulator();
+                session.write(KeyHandler.getCode(resultingKeyCode, 0, term.isCursorKeysApplicationMode(), term.isKeypadApplicationMode()));
+            } else if (resultingCodePoint != -1) {
+                session.writeCodePoint(altDown, resultingCodePoint);
+            }
+            return true;
+        } else if (ctrlDown) {
+            if (codePoint == 106 /* Ctrl+j or \n */ && !session.isRunning()) {
+                mTermuxTerminalSessionClient.removeFinishedSession(session);
+                return true;
+            }
+
+            List<KeyboardShortcut> shortcuts = mActivity.getProperties().getSessionShortcuts();
+            if (shortcuts != null && !shortcuts.isEmpty()) {
+                int codePointLowerCase = Character.toLowerCase(codePoint);
+                for (int i = shortcuts.size() - 1; i >= 0; i--) {
+                    KeyboardShortcut shortcut = shortcuts.get(i);
+                    if (codePointLowerCase == shortcut.codePoint) {
+                        switch (shortcut.shortcutAction) {
+                            case TermuxPropertyConstants.ACTION_SHORTCUT_CREATE_SESSION:
+                                mTermuxTerminalSessionClient.addNewSession(false, null);
+                                return true;
+                            case TermuxPropertyConstants.ACTION_SHORTCUT_NEXT_SESSION:
+                                mTermuxTerminalSessionClient.switchToSession(true);
+                                return true;
+                            case TermuxPropertyConstants.ACTION_SHORTCUT_PREVIOUS_SESSION:
+                                mTermuxTerminalSessionClient.switchToSession(false);
+                                return true;
+                            case TermuxPropertyConstants.ACTION_SHORTCUT_RENAME_SESSION:
+                                mTermuxTerminalSessionClient.renameSession(mActivity.getCurrentSession());
+                                return true;
+                        }
+                    }
+                }
+            }
+        }
+
+        return false;
+    }
+
+
+
+    public void changeFontSize(boolean increase) {
+        mActivity.getPreferences().changeFontSize(increase);
+        mActivity.getTerminalView().setTextSize(mActivity.getPreferences().getFontSize());
+    }
+
+
+
+    public void shareSessionTranscript() {
+        TerminalSession session = mActivity.getCurrentSession();
+        if (session == null) return;
+
+        String transcriptText = ShellUtils.getTerminalSessionTranscriptText(session, false, true);
+        if (transcriptText == null) return;
+
+        try {
+            // See https://github.com/termux/termux-app/issues/1166.
+            Intent intent = new Intent(Intent.ACTION_SEND);
+            intent.setType("text/plain");
+            transcriptText = DataUtils.getTruncatedCommandOutput(transcriptText, DataUtils.TRANSACTION_SIZE_LIMIT_IN_BYTES, false, true, false).trim();
+            intent.putExtra(Intent.EXTRA_TEXT, transcriptText);
+            intent.putExtra(Intent.EXTRA_SUBJECT, mActivity.getString(R.string.title_share_transcript));
+            mActivity.startActivity(Intent.createChooser(intent, mActivity.getString(R.string.title_share_transcript_with)));
+        } catch (Exception e) {
+            Logger.logStackTraceWithMessage("Failed to get share session transcript of length " + transcriptText.length(), e);
+        }
+    }
+
+    public void showUrlSelection() {
+        TerminalSession session = mActivity.getCurrentSession();
+        if (session == null) return;
+
+        String text = ShellUtils.getTerminalSessionTranscriptText(session, true, true);
+
+        LinkedHashSet<CharSequence> urlSet = DataUtils.extractUrls(text);
+        if (urlSet.isEmpty()) {
+            new AlertDialog.Builder(mActivity).setMessage(R.string.title_select_url_none_found).show();
+            return;
+        }
+
+        final CharSequence[] urls = urlSet.toArray(new CharSequence[0]);
+        Collections.reverse(Arrays.asList(urls)); // Latest first.
+
+        // Click to copy url to clipboard:
+        final AlertDialog dialog = new AlertDialog.Builder(mActivity).setItems(urls, (di, which) -> {
+            String url = (String) urls[which];
+            ClipboardManager clipboard = (ClipboardManager) mActivity.getSystemService(Context.CLIPBOARD_SERVICE);
+            clipboard.setPrimaryClip(new ClipData(null, new String[]{"text/plain"}, new ClipData.Item(url)));
+            Toast.makeText(mActivity, R.string.msg_select_url_copied_to_clipboard, Toast.LENGTH_LONG).show();
+        }).setTitle(R.string.title_select_url_dialog).create();
+
+        // Long press to open URL:
+        dialog.setOnShowListener(di -> {
+            ListView lv = dialog.getListView(); // this is a ListView with your "buds" in it
+            lv.setOnItemLongClickListener((parent, view, position, id) -> {
+                dialog.dismiss();
+                String url = (String) urls[position];
+                Intent i = new Intent(Intent.ACTION_VIEW, Uri.parse(url));
+                try {
+                    mActivity.startActivity(i, null);
+                } catch (ActivityNotFoundException e) {
+                    // If no applications match, Android displays a system message.
+                    mActivity.startActivity(Intent.createChooser(i, null));
+                }
+                return true;
+            });
+        });
+
+        dialog.show();
+    }
+
+    public void reportIssueFromTranscript() {
+        TerminalSession session = mActivity.getCurrentSession();
+        if (session == null) return;
+
+        String transcriptText = ShellUtils.getTerminalSessionTranscriptText(session, false, true);
+        if (transcriptText == null) return;
+
+        transcriptText = DataUtils.getTruncatedCommandOutput(transcriptText, DataUtils.TRANSACTION_SIZE_LIMIT_IN_BYTES, false, true, false).trim();
+
+        StringBuilder reportString = new StringBuilder();
+
+        String title = TermuxConstants.TERMUX_APP_NAME + " Report Issue";
+
+        reportString.append("## Transcript\n");
+        reportString.append("\n").append(MarkdownUtils.getMarkdownCodeForString(transcriptText, true));
+
+        reportString.append("\n\n").append(TermuxUtils.getAppInfoMarkdownString(mActivity, true));
+        reportString.append("\n\n").append(TermuxUtils.getDeviceInfoMarkdownString(mActivity));
+
+        String termuxAptInfo = TermuxUtils.geAPTInfoMarkdownString(mActivity);
+        if (termuxAptInfo != null)
+            reportString.append("\n\n").append(termuxAptInfo);
+
+        ReportActivity.startReportActivity(mActivity, new ReportInfo(UserAction.REPORT_ISSUE_FROM_TRANSCRIPT, TermuxConstants.TERMUX_APP.TERMUX_ACTIVITY_NAME, title, null, reportString.toString(), "\n\n" + TermuxUtils.getReportIssueMarkdownString(mActivity), false));
+    }
+
+    public void doPaste() {
+        TerminalSession session = mActivity.getCurrentSession();
+        if (session == null) return;
+        if (!session.isRunning()) return;
+
+        ClipboardManager clipboard = (ClipboardManager) mActivity.getSystemService(Context.CLIPBOARD_SERVICE);
+        ClipData clipData = clipboard.getPrimaryClip();
+        if (clipData == null) return;
+        CharSequence paste = clipData.getItemAt(0).coerceToText(mActivity);
+        if (!TextUtils.isEmpty(paste))
+            session.getEmulator().paste(paste.toString());
+    }
+
+}
--- a/app/src/main/java/com/termux/app/terminal/io/BellHandler.java
+++ b/app/src/main/java/com/termux/app/terminal/io/BellHandler.java
@@ -0,0 +1,63 @@
+package com.termux.app.terminal.io;
+
+import android.content.Context;
+import android.os.Handler;
+import android.os.Looper;
+import android.os.SystemClock;
+import android.os.Vibrator;
+
+public class BellHandler {
+    private static BellHandler instance = null;
+    private static final Object lock = new Object();
+
+    public static BellHandler getInstance(Context context) {
+        if (instance == null) {
+            synchronized (lock) {
+                if (instance == null) {
+                    instance = new BellHandler((Vibrator) context.getApplicationContext().getSystemService(Context.VIBRATOR_SERVICE));
+                }
+            }
+        }
+
+        return instance;
+    }
+
+    private static final long DURATION = 50;
+    private static final long MIN_PAUSE = 3 * DURATION;
+
+    private final Handler handler = new Handler(Looper.getMainLooper());
+    private long lastBell = 0;
+    private final Runnable bellRunnable;
+
+    private BellHandler(final Vibrator vibrator) {
+        bellRunnable = new Runnable() {
+            @Override
+            public void run() {
+                if (vibrator != null) {
+                    vibrator.vibrate(DURATION);
+                }
+            }
+        };
+    }
+
+    public synchronized void doBell() {
+        long now = now();
+        long timeSinceLastBell = now - lastBell;
+
+        if (timeSinceLastBell < 0) {
+            // there is a next bell pending; don't schedule another one
+        } else if (timeSinceLastBell < MIN_PAUSE) {
+            // there was a bell recently, schedule the next one
+            handler.postDelayed(bellRunnable, MIN_PAUSE - timeSinceLastBell);
+            lastBell = lastBell + MIN_PAUSE;
+        } else {
+            // the last bell was long ago, do it now
+            bellRunnable.run();
+            lastBell = now;
+        }
+    }
+
+    private long now() {
+        return SystemClock.uptimeMillis();
+    }
+}
--- a/app/src/main/java/com/termux/app/terminal/io/FullScreenWorkAround.java
+++ b/app/src/main/java/com/termux/app/terminal/io/FullScreenWorkAround.java
@@ -0,0 +1,68 @@
+package com.termux.app.terminal.io;
+
+import android.graphics.Rect;
+import android.view.View;
+import android.view.ViewGroup;
+
+import com.termux.app.TermuxActivity;
+
+/**
+ * Work around for fullscreen mode in Termux to fix ExtraKeysView not being visible.
+ * This class is derived from:
+ * https://stackoverflow.com/questions/7417123/android-how-to-adjust-layout-in-full-screen-mode-when-softkeyboard-is-visible
+ * and has some additional tweaks
+ * ---
+ * For more information, see https://issuetracker.google.com/issues/36911528
+ */
+public class FullScreenWorkAround {
+    private final View mChildOfContent;
+    private int mUsableHeightPrevious;
+    private final ViewGroup.LayoutParams mViewGroupLayoutParams;
+
+    private final int mNavBarHeight;
+
+
+    public static void apply(TermuxActivity activity) {
+        new FullScreenWorkAround(activity);
+    }
+
+    private FullScreenWorkAround(TermuxActivity activity) {
+        ViewGroup content = activity.findViewById(android.R.id.content);
+        mChildOfContent = content.getChildAt(0);
+        mViewGroupLayoutParams = mChildOfContent.getLayoutParams();
+        mNavBarHeight = activity.getNavBarHeight();
+        mChildOfContent.getViewTreeObserver().addOnGlobalLayoutListener(this::possiblyResizeChildOfContent);
+    }
+
+    private void possiblyResizeChildOfContent() {
+        int usableHeightNow = computeUsableHeight();
+        if (usableHeightNow != mUsableHeightPrevious) {
+            int usableHeightSansKeyboard = mChildOfContent.getRootView().getHeight();
+            int heightDifference = usableHeightSansKeyboard - usableHeightNow;
+            if (heightDifference > (usableHeightSansKeyboard / 4)) {
+                // keyboard probably just became visible
+
+                // ensures that usable layout space does not extend behind the
+                // soft keyboard, causing the extra keys to not be visible
+                mViewGroupLayoutParams.height = (usableHeightSansKeyboard - heightDifference) + getNavBarHeight();
+            } else {
+                // keyboard probably just became hidden
+                mViewGroupLayoutParams.height = usableHeightSansKeyboard;
+            }
+            mChildOfContent.requestLayout();
+            mUsableHeightPrevious = usableHeightNow;
+        }
+    }
+
+    private int getNavBarHeight() {
+        return mNavBarHeight;
+    }
+
+    private int computeUsableHeight() {
+        Rect r = new Rect();
+        mChildOfContent.getWindowVisibleDisplayFrame(r);
+        return (r.bottom - r.top);
+    }
+
+}
+
--- a/app/src/main/java/com/termux/app/terminal/io/KeyboardShortcut.java
+++ b/app/src/main/java/com/termux/app/terminal/io/KeyboardShortcut.java
@@ -0,0 +1,13 @@
+package com.termux.app.terminal.io;
+
+public class KeyboardShortcut {
+
+    public final int codePoint;
+    public final int shortcutAction;
+
+    public KeyboardShortcut(int codePoint, int shortcutAction) {
+        this.codePoint = codePoint;
+        this.shortcutAction = shortcutAction;
+    }
+
+}
--- a/app/src/main/java/com/termux/app/terminal/io/TerminalToolbarViewPager.java
+++ b/app/src/main/java/com/termux/app/terminal/io/TerminalToolbarViewPager.java
@@ -0,0 +1,114 @@
+package com.termux.app.terminal.io;
+
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.EditText;
+
+import androidx.annotation.NonNull;
+import androidx.viewpager.widget.PagerAdapter;
+import androidx.viewpager.widget.ViewPager;
+
+import com.termux.R;
+import com.termux.app.TermuxActivity;
+import com.termux.app.terminal.io.extrakeys.ExtraKeysView;
+import com.termux.terminal.TerminalSession;
+
+public class TerminalToolbarViewPager {
+
+    public static class PageAdapter extends PagerAdapter {
+
+        final TermuxActivity mActivity;
+        String mSavedTextInput;
+
+        public PageAdapter(TermuxActivity activity, String savedTextInput) {
+            this.mActivity = activity;
+            this.mSavedTextInput = savedTextInput;
+        }
+
+        @Override
+        public int getCount() {
+            return 2;
+        }
+
+        @Override
+        public boolean isViewFromObject(@NonNull View view, @NonNull Object object) {
+            return view == object;
+        }
+
+        @NonNull
+        @Override
+        public Object instantiateItem(@NonNull ViewGroup collection, int position) {
+            LayoutInflater inflater = LayoutInflater.from(mActivity);
+            View layout;
+            if (position == 0) {
+                layout = inflater.inflate(R.layout.view_terminal_toolbar_extra_keys, collection, false);
+                ExtraKeysView extraKeysView = (ExtraKeysView) layout;
+                mActivity.setExtraKeysView(extraKeysView);
+                extraKeysView.reload(mActivity.getProperties().getExtraKeysInfo());
+
+                // apply extra keys fix if enabled in prefs
+                if (mActivity.getProperties().isUsingFullScreen() && mActivity.getProperties().isUsingFullScreenWorkAround()) {
+                    FullScreenWorkAround.apply(mActivity);
+                }
+
+            } else {
+                layout = inflater.inflate(R.layout.view_terminal_toolbar_text_input, collection, false);
+                final EditText editText = layout.findViewById(R.id.terminal_toolbar_text_input);
+
+                if (mSavedTextInput != null) {
+                    editText.setText(mSavedTextInput);
+                    mSavedTextInput = null;
+                }
+
+                editText.setOnEditorActionListener((v, actionId, event) -> {
+                    TerminalSession session = mActivity.getCurrentSession();
+                    if (session != null) {
+                        if (session.isRunning()) {
+                            String textToSend = editText.getText().toString();
+                            if (textToSend.length() == 0) textToSend = "\r";
+                            session.write(textToSend);
+                        } else {
+                            mActivity.getTermuxTerminalSessionClient().removeFinishedSession(session);
+                        }
+                        editText.setText("");
+                    }
+                    return true;
+                });
+            }
+            collection.addView(layout);
+            return layout;
+        }
+
+        @Override
+        public void destroyItem(@NonNull ViewGroup collection, int position, @NonNull Object view) {
+            collection.removeView((View) view);
+        }
+
+    }
+
+
+
+    public static class OnPageChangeListener extends ViewPager.SimpleOnPageChangeListener {
+
+        final TermuxActivity mActivity;
+        final ViewPager mTerminalToolbarViewPager;
+
+        public OnPageChangeListener(TermuxActivity activity, ViewPager viewPager) {
+            this.mActivity = activity;
+            this.mTerminalToolbarViewPager = viewPager;
+        }
+
+        @Override
+        public void onPageSelected(int position) {
+            if (position == 0) {
+                mActivity.getTerminalView().requestFocus();
+            } else {
+                final EditText editText = mTerminalToolbarViewPager.findViewById(R.id.terminal_toolbar_text_input);
+                if (editText != null) editText.requestFocus();
+            }
+        }
+
+    }
+
+}
--- a/app/src/main/java/com/termux/app/terminal/io/extrakeys/ExtraKeyButton.java
+++ b/app/src/main/java/com/termux/app/terminal/io/extrakeys/ExtraKeyButton.java
@@ -0,0 +1,92 @@
+package com.termux.app.terminal.io.extrakeys;
+
+import android.text.TextUtils;
+
+import androidx.annotation.Nullable;
+
+import org.json.JSONException;
+import org.json.JSONObject;
+
+import java.util.Arrays;
+import java.util.stream.Collectors;
+
+public class ExtraKeyButton {
+
+    /**
+     * The key that will be sent to the terminal, either a control character
+     * defined in ExtraKeysView.keyCodesForString (LEFT, RIGHT, PGUP...) or
+     * some text.
+     */
+    private final String key;
+
+    /**
+     * If the key is a macro, i.e. a sequence of keys separated by space.
+     */
+    private final boolean macro;
+
+    /**
+     * The text that will be shown on the button.
+     */
+    private final String display;
+
+    /**
+     * The information of the popup (triggered by swipe up).
+     */
+    @Nullable
+    private ExtraKeyButton popup;
+
+    public ExtraKeyButton(ExtraKeysInfo.CharDisplayMap charDisplayMap, JSONObject config) throws JSONException {
+        this(charDisplayMap, config, null);
+    }
+
+    public ExtraKeyButton(ExtraKeysInfo.CharDisplayMap charDisplayMap, JSONObject config, @Nullable ExtraKeyButton popup) throws JSONException {
+        String keyFromConfig = config.optString("key", null);
+        String macroFromConfig = config.optString("macro", null);
+        String[] keys;
+        if (keyFromConfig != null && macroFromConfig != null) {
+            throw new JSONException("Both key and macro can't be set for the same key");
+        } else if (keyFromConfig != null) {
+            keys = new String[]{keyFromConfig};
+            this.macro = false;
+        } else if (macroFromConfig != null) {
+            keys = macroFromConfig.split(" ");
+            this.macro = true;
+        } else {
+            throw new JSONException("All keys have to specify either key or macro");
+        }
+
+        for (int i = 0; i < keys.length; i++) {
+            keys[i] = ExtraKeysInfo.replaceAlias(keys[i]);
+        }
+
+        this.key = TextUtils.join(" ", keys);
+
+        String displayFromConfig = config.optString("display", null);
+        if (displayFromConfig != null) {
+            this.display = displayFromConfig;
+        } else {
+            this.display = Arrays.stream(keys)
+                .map(key -> charDisplayMap.get(key, key))
+                .collect(Collectors.joining(" "));
+        }
+
+        this.popup = popup;
+    }
+
+    public String getKey() {
+        return key;
+    }
+
+    public boolean isMacro() {
+        return macro;
+    }
+
+    public String getDisplay() {
+        return display;
+    }
+
+    @Nullable
+    public ExtraKeyButton getPopup() {
+        return popup;
+    }
+}
--- a/app/src/main/java/com/termux/app/terminal/io/extrakeys/ExtraKeysInfo.java
+++ b/app/src/main/java/com/termux/app/terminal/io/extrakeys/ExtraKeysInfo.java
@@ -0,0 +1,253 @@
+package com.termux.app.terminal.io.extrakeys;
+
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+
+import java.util.HashMap;
+
+public class ExtraKeysInfo {
+
+    /**
+     * Matrix of buttons displayed
+     */
+    private final ExtraKeyButton[][] buttons;
+
+    /**
+     * This corresponds to one of the CharMapDisplay below
+     */
+    private String style;
+
+    public ExtraKeysInfo(String propertiesInfo, String style) throws JSONException {
+        this.style = style;
+
+        // Convert String propertiesInfo to Array of Arrays
+        JSONArray arr = new JSONArray(propertiesInfo);
+        Object[][] matrix = new Object[arr.length()][];
+        for (int i = 0; i < arr.length(); i++) {
+            JSONArray line = arr.getJSONArray(i);
+            matrix[i] = new Object[line.length()];
+            for (int j = 0; j < line.length(); j++) {
+                matrix[i][j] = line.get(j);
+            }
+        }
+
+        // convert matrix to buttons
+        this.buttons = new ExtraKeyButton[matrix.length][];
+        for (int i = 0; i < matrix.length; i++) {
+            this.buttons[i] = new ExtraKeyButton[matrix[i].length];
+            for (int j = 0; j < matrix[i].length; j++) {
+                Object key = matrix[i][j];
+
+                JSONObject jobject = normalizeKeyConfig(key);
+
+                ExtraKeyButton button;
+
+                if (! jobject.has("popup")) {
+                    // no popup
+                    button = new ExtraKeyButton(getSelectedCharMap(), jobject);
+                } else {
+                    // a popup
+                    JSONObject popupJobject = normalizeKeyConfig(jobject.get("popup"));
+                    ExtraKeyButton popup = new ExtraKeyButton(getSelectedCharMap(), popupJobject);
+                    button = new ExtraKeyButton(getSelectedCharMap(), jobject, popup);
+                }
+
+                this.buttons[i][j] = button;
+            }
+        }
+    }
+
+    /**
+     * "hello" -> {"key": "hello"}
+     */
+    private static JSONObject normalizeKeyConfig(Object key) throws JSONException {
+        JSONObject jobject;
+        if (key instanceof String) {
+            jobject = new JSONObject();
+            jobject.put("key", key);
+        } else if (key instanceof JSONObject) {
+            jobject = (JSONObject) key;
+        } else {
+            throw new JSONException("An key in the extra-key matrix must be a string or an object");
+        }
+        return jobject;
+    }
+
+    public ExtraKeyButton[][] getMatrix() {
+        return buttons;
+    }
+
+    /**
+     * HashMap that implements Python dict.get(key, default) function.
+     * Default java.util .get(key) is then the same as .get(key, null);
+     */
+    static class CleverMap<K,V> extends HashMap<K,V> {
+        V get(K key, V defaultValue) {
+            if (containsKey(key))
+                return get(key);
+            else
+                return defaultValue;
+        }
+    }
+
+    static class CharDisplayMap extends CleverMap<String, String> {}
+
+    /**
+     * Keys are displayed in a natural looking way, like "→" for "RIGHT"
+     */
+    static final CharDisplayMap classicArrowsDisplay = new CharDisplayMap() {{
+        // classic arrow keys (for ◀ ▶ ▲ ▼ @see arrowVariationDisplay)
+        put("LEFT", "←"); // U+2190 ← LEFTWARDS ARROW
+        put("RIGHT", "→"); // U+2192 → RIGHTWARDS ARROW
+        put("UP", "↑"); // U+2191 ↑ UPWARDS ARROW
+        put("DOWN", "↓"); // U+2193 ↓ DOWNWARDS ARROW
+    }};
+
+    static final CharDisplayMap wellKnownCharactersDisplay = new CharDisplayMap() {{
+        // well known characters // https://en.wikipedia.org/wiki/{Enter_key, Tab_key, Delete_key}
+        put("ENTER", "↲"); // U+21B2 ↲ DOWNWARDS ARROW WITH TIP LEFTWARDS
+        put("TAB", "↹"); // U+21B9 ↹ LEFTWARDS ARROW TO BAR OVER RIGHTWARDS ARROW TO BAR
+        put("BKSP", "⌫"); // U+232B ⌫ ERASE TO THE LEFT sometimes seen and easy to understand
+        put("DEL", "⌦"); // U+2326 ⌦ ERASE TO THE RIGHT not well known but easy to understand
+        put("DRAWER", "☰"); // U+2630 ☰ TRIGRAM FOR HEAVEN not well known but easy to understand
+        put("KEYBOARD", "⌨"); // U+2328 ⌨ KEYBOARD not well known but easy to understand
+    }};
+
+    static final CharDisplayMap lessKnownCharactersDisplay = new CharDisplayMap() {{
+        // https://en.wikipedia.org/wiki/{Home_key, End_key, Page_Up_and_Page_Down_keys}
+        // home key can mean "goto the beginning of line" or "goto first page" depending on context, hence the diagonal
+        put("HOME", "⇱"); // from IEC 9995 // U+21F1 ⇱ NORTH WEST ARROW TO CORNER
+        put("END", "⇲"); // from IEC 9995 // ⇲ // U+21F2 ⇲ SOUTH EAST ARROW TO CORNER
+        put("PGUP", "⇑"); // no ISO character exists, U+21D1 ⇑ UPWARDS DOUBLE ARROW will do the trick
+        put("PGDN", "⇓"); // no ISO character exists, U+21D3 ⇓ DOWNWARDS DOUBLE ARROW will do the trick
+    }};
+
+    static final CharDisplayMap arrowTriangleVariationDisplay = new CharDisplayMap() {{
+        // alternative to classic arrow keys
+        put("LEFT", "◀"); // U+25C0 ◀ BLACK LEFT-POINTING TRIANGLE
+        put("RIGHT", "▶"); // U+25B6 ▶ BLACK RIGHT-POINTING TRIANGLE
+        put("UP", "▲"); // U+25B2 ▲ BLACK UP-POINTING TRIANGLE
+        put("DOWN", "▼"); // U+25BC ▼ BLACK DOWN-POINTING TRIANGLE
+    }};
+
+    static final CharDisplayMap notKnownIsoCharacters = new CharDisplayMap() {{
+        // Control chars that are more clear as text // https://en.wikipedia.org/wiki/{Function_key, Alt_key, Control_key, Esc_key}
+        // put("FN", "FN"); // no ISO character exists
+        put("CTRL", "⎈"); // ISO character "U+2388 ⎈ HELM SYMBOL" is unknown to people and never printed on computers, however "U+25C7 ◇ WHITE DIAMOND" is a nice presentation, and "^" for terminal app and mac is often used
+        put("ALT", "⎇"); // ISO character "U+2387 ⎇ ALTERNATIVE KEY SYMBOL'" is unknown to people and only printed as the Option key "⌥" on Mac computer
+        put("ESC", "⎋"); // ISO character "U+238B ⎋ BROKEN CIRCLE WITH NORTHWEST ARROW" is unknown to people and not often printed on computers
+    }};
+
+    static final CharDisplayMap nicerLookingDisplay = new CharDisplayMap() {{
+        // nicer looking for most cases
+        put("-", "―"); // U+2015 ― HORIZONTAL BAR
+    }};
+
+    /*
+     * Multiple maps are available to quickly change
+     * the style of the keys.
+     */
+
+    /**
+     * Some classic symbols everybody knows
+     */
+    private static final CharDisplayMap defaultCharDisplay = new CharDisplayMap() {{
+        putAll(classicArrowsDisplay);
+        putAll(wellKnownCharactersDisplay);
+        putAll(nicerLookingDisplay);
+        // all other characters are displayed as themselves
+    }};
+
+    /**
+     * Classic symbols and less known symbols
+     */
+    private static final CharDisplayMap lotsOfArrowsCharDisplay = new CharDisplayMap() {{
+        putAll(classicArrowsDisplay);
+        putAll(wellKnownCharactersDisplay);
+        putAll(lessKnownCharactersDisplay); // NEW
+        putAll(nicerLookingDisplay);
+    }};
+
+    /**
+     * Only arrows
+     */
+    private static final CharDisplayMap arrowsOnlyCharDisplay = new CharDisplayMap() {{
+        putAll(classicArrowsDisplay);
+        // putAll(wellKnownCharactersDisplay); // REMOVED
+        // putAll(lessKnownCharactersDisplay); // REMOVED
+        putAll(nicerLookingDisplay);
+    }};
+
+    /**
+     * Full Iso
+     */
+    private static final CharDisplayMap fullIsoCharDisplay = new CharDisplayMap() {{
+        putAll(classicArrowsDisplay);
+        putAll(wellKnownCharactersDisplay);
+        putAll(lessKnownCharactersDisplay); // NEW
+        putAll(nicerLookingDisplay);
+        putAll(notKnownIsoCharacters); // NEW
+    }};
+
+    /**
+     * Some people might call our keys differently
+     */
+    static private final CharDisplayMap controlCharsAliases = new CharDisplayMap() {{
+        put("ESCAPE", "ESC");
+        put("CONTROL", "CTRL");
+        put("RETURN", "ENTER"); // Technically different keys, but most applications won't see the difference
+        put("FUNCTION", "FN");
+        // no alias for ALT
+
+        // Directions are sometimes written as first and last letter for brevety
+        put("LT", "LEFT");
+        put("RT", "RIGHT");
+        put("DN", "DOWN");
+        // put("UP", "UP"); well, "UP" is already two letters
+
+        put("PAGEUP", "PGUP");
+        put("PAGE_UP", "PGUP");
+        put("PAGE UP", "PGUP");
+        put("PAGE-UP", "PGUP");
+
+        // no alias for HOME
+        // no alias for END
+
+        put("PAGEDOWN", "PGDN");
+        put("PAGE_DOWN", "PGDN");
+        put("PAGE-DOWN", "PGDN");
+
+        put("DELETE", "DEL");
+        put("BACKSPACE", "BKSP");
+
+        // easier for writing in termux.properties
+        put("BACKSLASH", "\\");
+        put("QUOTE", "\"");
+        put("APOSTROPHE", "'");
+    }};
+
+    CharDisplayMap getSelectedCharMap() {
+        switch (style) {
+            case "arrows-only":
+                return arrowsOnlyCharDisplay;
+            case "arrows-all":
+                return lotsOfArrowsCharDisplay;
+            case "all":
+                return fullIsoCharDisplay;
+            case "none":
+                return new CharDisplayMap();
+            default:
+                return defaultCharDisplay;
+        }
+    }
+
+    /**
+     * Applies the 'controlCharsAliases' mapping to all the strings in *buttons*
+     * Modifies the array, doesn't return a new one.
+     */
+    public static String replaceAlias(String key) {
+        return controlCharsAliases.get(key, key);
+    }
+}
+
--- a/app/src/main/java/com/termux/app/terminal/io/extrakeys/ExtraKeysView.java
+++ b/app/src/main/java/com/termux/app/terminal/io/extrakeys/ExtraKeysView.java
@@ -0,0 +1,382 @@
+package com.termux.app.terminal.io.extrakeys;
+
+import android.annotation.SuppressLint;
+import android.content.Context;
+import android.os.Build;
+import android.provider.Settings;
+import android.util.AttributeSet;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Set;
+import java.util.concurrent.Executors;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.ScheduledExecutorService;
+
+import java.util.Map;
+import java.util.HashMap;
+import java.util.Arrays;
+import java.util.stream.Collectors;
+
+import android.view.Gravity;
+import android.view.HapticFeedbackConstants;
+import android.view.KeyEvent;
+import android.view.MotionEvent;
+import android.view.View;
+import android.view.inputmethod.InputMethodManager;
+import android.widget.Button;
+import android.widget.GridLayout;
+import android.widget.PopupWindow;
+
+import com.termux.R;
+import com.termux.view.TerminalView;
+
+import androidx.drawerlayout.widget.DrawerLayout;
+
+/**
+ * A view showing extra keys (such as Escape, Ctrl, Alt) not normally available on an Android soft
+ * keyboard.
+ */
+public final class ExtraKeysView extends GridLayout {
+
+    private static final int TEXT_COLOR = 0xFFFFFFFF;
+    private static final int BUTTON_COLOR = 0x00000000;
+    private static final int INTERESTING_COLOR = 0xFF80DEEA;
+    private static final int BUTTON_PRESSED_COLOR = 0xFF7F7F7F;
+
+    public ExtraKeysView(Context context, AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    static final Map<String, Integer> keyCodesForString = new HashMap<String, Integer>() {{
+        put("SPACE", KeyEvent.KEYCODE_SPACE);
+        put("ESC", KeyEvent.KEYCODE_ESCAPE);
+        put("TAB", KeyEvent.KEYCODE_TAB);
+        put("HOME", KeyEvent.KEYCODE_MOVE_HOME);
+        put("END", KeyEvent.KEYCODE_MOVE_END);
+        put("PGUP", KeyEvent.KEYCODE_PAGE_UP);
+        put("PGDN", KeyEvent.KEYCODE_PAGE_DOWN);
+        put("INS", KeyEvent.KEYCODE_INSERT);
+        put("DEL", KeyEvent.KEYCODE_FORWARD_DEL);
+        put("BKSP", KeyEvent.KEYCODE_DEL);
+        put("UP", KeyEvent.KEYCODE_DPAD_UP);
+        put("LEFT", KeyEvent.KEYCODE_DPAD_LEFT);
+        put("RIGHT", KeyEvent.KEYCODE_DPAD_RIGHT);
+        put("DOWN", KeyEvent.KEYCODE_DPAD_DOWN);
+        put("ENTER", KeyEvent.KEYCODE_ENTER);
+        put("F1", KeyEvent.KEYCODE_F1);
+        put("F2", KeyEvent.KEYCODE_F2);
+        put("F3", KeyEvent.KEYCODE_F3);
+        put("F4", KeyEvent.KEYCODE_F4);
+        put("F5", KeyEvent.KEYCODE_F5);
+        put("F6", KeyEvent.KEYCODE_F6);
+        put("F7", KeyEvent.KEYCODE_F7);
+        put("F8", KeyEvent.KEYCODE_F8);
+        put("F9", KeyEvent.KEYCODE_F9);
+        put("F10", KeyEvent.KEYCODE_F10);
+        put("F11", KeyEvent.KEYCODE_F11);
+        put("F12", KeyEvent.KEYCODE_F12);
+    }};
+
+    @SuppressLint("RtlHardcoded")
+    private void sendKey(View view, String keyName, boolean forceCtrlDown, boolean forceLeftAltDown) {
+        TerminalView terminalView = view.findViewById(R.id.terminal_view);
+        if ("KEYBOARD".equals(keyName)) {
+            InputMethodManager imm = (InputMethodManager) getContext().getSystemService(Context.INPUT_METHOD_SERVICE);
+            imm.toggleSoftInput(0, 0);
+        } else if ("DRAWER".equals(keyName)) {
+            DrawerLayout drawer = view.findViewById(R.id.drawer_layout);
+            drawer.openDrawer(Gravity.LEFT);
+        } else if (keyCodesForString.containsKey(keyName)) {
+            Integer keyCode = keyCodesForString.get(keyName);
+            if (keyCode == null) return;
+            int metaState = 0;
+            if (forceCtrlDown) {
+                metaState |= KeyEvent.META_CTRL_ON | KeyEvent.META_CTRL_LEFT_ON;
+            }
+            if (forceLeftAltDown) {
+                metaState |= KeyEvent.META_ALT_ON | KeyEvent.META_ALT_LEFT_ON;
+            }
+            KeyEvent keyEvent = new KeyEvent(0, 0, KeyEvent.ACTION_UP, keyCode, 0, metaState);
+            terminalView.onKeyDown(keyCode, keyEvent);
+        } else {
+            // not a control char
+            keyName.codePoints().forEach(codePoint -> {
+                terminalView.inputCodePoint(codePoint, forceCtrlDown, forceLeftAltDown);
+            });
+        }
+    }
+
+    private void sendKey(View view, ExtraKeyButton buttonInfo) {
+        if (buttonInfo.isMacro()) {
+            String[] keys = buttonInfo.getKey().split(" ");
+            boolean ctrlDown = false;
+            boolean altDown = false;
+            for (String key : keys) {
+                if ("CTRL".equals(key)) {
+                    ctrlDown = true;
+                } else if ("ALT".equals(key)) {
+                    altDown = true;
+                } else {
+                    sendKey(view, key, ctrlDown, altDown);
+                    ctrlDown = false;
+                    altDown = false;
+                }
+            }
+        } else {
+            sendKey(view, buttonInfo.getKey(), false, false);
+        }
+    }
+
+    public enum SpecialButton {
+        CTRL, ALT, FN
+    }
+
+    private static class SpecialButtonState {
+        boolean isOn = false;
+        boolean isActive = false;
+        List<Button> buttons = new ArrayList<>();
+
+        void setIsActive(boolean value) {
+            isActive = value;
+            buttons.forEach(button -> button.setTextColor(value ? INTERESTING_COLOR : TEXT_COLOR));
+        }
+    }
+
+    private final Map<SpecialButton, SpecialButtonState> specialButtons = new HashMap<SpecialButton, SpecialButtonState>() {{
+        put(SpecialButton.CTRL, new SpecialButtonState());
+        put(SpecialButton.ALT, new SpecialButtonState());
+        put(SpecialButton.FN, new SpecialButtonState());
+    }};
+
+    private final Set<String> specialButtonsKeys = specialButtons.keySet().stream().map(Enum::name).collect(Collectors.toSet());
+
+    private boolean isSpecialButton(ExtraKeyButton button) {
+        return specialButtonsKeys.contains(button.getKey());
+    }
+
+    private ScheduledExecutorService scheduledExecutor;
+    private PopupWindow popupWindow;
+    private int longPressCount;
+
+    public boolean readSpecialButton(SpecialButton name) {
+        SpecialButtonState state = specialButtons.get(name);
+        if (state == null)
+            throw new RuntimeException("Must be a valid special button (see source)");
+
+        if (!state.isOn || !state.isActive)
+            return false;
+
+        state.setIsActive(false);
+
+        return true;
+    }
+
+    private Button createSpecialButton(String buttonKey, boolean needUpdate) {
+        SpecialButtonState state = specialButtons.get(SpecialButton.valueOf(buttonKey));
+        if (state == null) return null;
+        state.isOn = true;
+        Button button = new Button(getContext(), null, android.R.attr.buttonBarButtonStyle);
+        button.setTextColor(state.isActive ? INTERESTING_COLOR : TEXT_COLOR);
+        if (needUpdate) {
+            state.buttons.add(button);
+        }
+        return button;
+    }
+
+    void popup(View view, ExtraKeyButton extraButton) {
+        int width = view.getMeasuredWidth();
+        int height = view.getMeasuredHeight();
+        Button button;
+        if (isSpecialButton(extraButton)) {
+            button = createSpecialButton(extraButton.getKey(), false);
+            if (button == null) return;
+        } else {
+            button = new Button(getContext(), null, android.R.attr.buttonBarButtonStyle);
+            button.setTextColor(TEXT_COLOR);
+        }
+        button.setText(extraButton.getDisplay());
+        button.setPadding(0, 0, 0, 0);
+        button.setMinHeight(0);
+        button.setMinWidth(0);
+        button.setMinimumWidth(0);
+        button.setMinimumHeight(0);
+        button.setWidth(width);
+        button.setHeight(height);
+        button.setBackgroundColor(BUTTON_PRESSED_COLOR);
+        popupWindow = new PopupWindow(this);
+        popupWindow.setWidth(LayoutParams.WRAP_CONTENT);
+        popupWindow.setHeight(LayoutParams.WRAP_CONTENT);
+        popupWindow.setContentView(button);
+        popupWindow.setOutsideTouchable(true);
+        popupWindow.setFocusable(false);
+        popupWindow.showAsDropDown(view, 0, -2 * height);
+    }
+
+    /**
+     * General util function to compute the longest column length in a matrix.
+     */
+    static int maximumLength(Object[][] matrix) {
+        int m = 0;
+        for (Object[] row : matrix)
+            m = Math.max(m, row.length);
+        return m;
+    }
+
+    /**
+     * Reload the view given parameters in termux.properties
+     *
+     * @param infos matrix as defined in termux.properties extrakeys
+     * Can Contain The Strings CTRL ALT TAB FN ENTER LEFT RIGHT UP DOWN or normal strings
+     * Some aliases are possible like RETURN for ENTER, LT for LEFT and more (@see controlCharsAliases for the whole list).
+     * Any string of length > 1 in total Uppercase will print a warning
+     *
+     * Examples:
+     * "ENTER" will trigger the ENTER keycode
+     * "LEFT" will trigger the LEFT keycode and be displayed as "←"
+     * "→" will input a "→" character
+     * "−" will input a "−" character
+     * "-_-" will input the string "-_-"
+     */
+    @SuppressLint("ClickableViewAccessibility")
+    public void reload(ExtraKeysInfo infos) {
+        if (infos == null)
+            return;
+
+        for(SpecialButtonState state : specialButtons.values())
+            state.buttons = new ArrayList<>();
+
+        removeAllViews();
+
+        ExtraKeyButton[][] buttons = infos.getMatrix();
+
+        setRowCount(buttons.length);
+        setColumnCount(maximumLength(buttons));
+
+        for (int row = 0; row < buttons.length; row++) {
+            for (int col = 0; col < buttons[row].length; col++) {
+                final ExtraKeyButton buttonInfo = buttons[row][col];
+
+                Button button;
+                if (isSpecialButton(buttonInfo)) {
+                    button = createSpecialButton(buttonInfo.getKey(), true);
+                    if (button == null) return;
+                } else {
+                    button = new Button(getContext(), null, android.R.attr.buttonBarButtonStyle);
+                }
+
+                button.setText(buttonInfo.getDisplay());
+                button.setTextColor(TEXT_COLOR);
+                button.setPadding(0, 0, 0, 0);
+
+                final Button finalButton = button;
+                button.setOnClickListener(v -> {
+                    if (Settings.System.getInt(getContext().getContentResolver(),
+                        Settings.System.HAPTIC_FEEDBACK_ENABLED, 0) != 0) {
+
+                        if (Build.VERSION.SDK_INT >= 28) {
+                            finalButton.performHapticFeedback(HapticFeedbackConstants.KEYBOARD_TAP);
+                        } else {
+                            // Perform haptic feedback only if no total silence mode enabled.
+                            if (Settings.Global.getInt(getContext().getContentResolver(), "zen_mode", 0) != 2) {
+                                finalButton.performHapticFeedback(HapticFeedbackConstants.KEYBOARD_TAP);
+                            }
+                        }
+                    }
+
+                    View root = getRootView();
+                    if (isSpecialButton(buttonInfo)) {
+                        SpecialButtonState state = specialButtons.get(SpecialButton.valueOf(buttonInfo.getKey()));
+                        if (state == null) return;
+                        state.setIsActive(!state.isActive);
+                    } else {
+                        sendKey(root, buttonInfo);
+                    }
+                });
+
+                button.setOnTouchListener((v, event) -> {
+                    final View root = getRootView();
+                    switch (event.getAction()) {
+                        case MotionEvent.ACTION_DOWN:
+                            longPressCount = 0;
+                            v.setBackgroundColor(BUTTON_PRESSED_COLOR);
+                            if (Arrays.asList("UP", "DOWN", "LEFT", "RIGHT", "BKSP", "DEL").contains(buttonInfo.getKey())) {
+                                // autorepeat
+                                scheduledExecutor = Executors.newSingleThreadScheduledExecutor();
+                                scheduledExecutor.scheduleWithFixedDelay(() -> {
+                                    longPressCount++;
+                                    sendKey(root, buttonInfo);
+                                }, 400, 80, TimeUnit.MILLISECONDS);
+                            }
+                            return true;
+
+                        case MotionEvent.ACTION_MOVE:
+                            if (buttonInfo.getPopup() != null) {
+                                if (popupWindow == null && event.getY() < 0) {
+                                    if (scheduledExecutor != null) {
+                                        scheduledExecutor.shutdownNow();
+                                        scheduledExecutor = null;
+                                    }
+                                    v.setBackgroundColor(BUTTON_COLOR);
+                                    popup(v, buttonInfo.getPopup());
+                                }
+                                if (popupWindow != null && event.getY() > 0) {
+                                    v.setBackgroundColor(BUTTON_PRESSED_COLOR);
+                                    popupWindow.dismiss();
+                                    popupWindow = null;
+                                }
+                            }
+                            return true;
+
+                        case MotionEvent.ACTION_CANCEL:
+                            v.setBackgroundColor(BUTTON_COLOR);
+                            if (scheduledExecutor != null) {
+                                scheduledExecutor.shutdownNow();
+                                scheduledExecutor = null;
+                            }
+                            return true;
+                        case MotionEvent.ACTION_UP:
+                            v.setBackgroundColor(BUTTON_COLOR);
+                            if (scheduledExecutor != null) {
+                                scheduledExecutor.shutdownNow();
+                                scheduledExecutor = null;
+                            }
+                            if (longPressCount == 0 || popupWindow != null) {
+                                if (popupWindow != null) {
+                                    popupWindow.setContentView(null);
+                                    popupWindow.dismiss();
+                                    popupWindow = null;
+                                    if (buttonInfo.getPopup() != null) {
+                                        if (isSpecialButton(buttonInfo.getPopup())) {
+                                            SpecialButtonState state = specialButtons.get(SpecialButton.valueOf(buttonInfo.getPopup().getKey()));
+                                            if (state == null) return true;
+                                            state.setIsActive(!state.isActive);
+                                        } else {
+                                            sendKey(root, buttonInfo.getPopup());
+                                        }
+                                    }
+                                } else {
+                                    v.performClick();
+                                }
+                            }
+                            return true;
+
+                        default:
+                            return true;
+                    }
+                });
+
+                LayoutParams param = new GridLayout.LayoutParams();
+                param.width = 0;
+                param.height = 0;
+                param.setMargins(0, 0, 0, 0);
+                param.columnSpec = GridLayout.spec(col, GridLayout.FILL, 1.f);
+                param.rowSpec = GridLayout.spec(row, GridLayout.FILL, 1.f);
+                button.setLayoutParams(param);
+
+                addView(button);
+            }
+        }
+    }
+
+}
--- a/app/src/main/java/com/termux/app/utils/CrashUtils.java
+++ b/app/src/main/java/com/termux/app/utils/CrashUtils.java
@@ -0,0 +1,156 @@
+package com.termux.app.utils;
+
+import android.app.Notification;
+import android.app.NotificationManager;
+import android.app.PendingIntent;
+import android.content.Context;
+import android.content.Intent;
+
+import androidx.annotation.Nullable;
+
+import com.termux.R;
+import com.termux.app.activities.ReportActivity;
+import com.termux.shared.notification.NotificationUtils;
+import com.termux.shared.file.FileUtils;
+import com.termux.app.models.ReportInfo;
+import com.termux.app.models.UserAction;
+import com.termux.shared.settings.preferences.TermuxAppSharedPreferences;
+import com.termux.shared.settings.preferences.TermuxPreferenceConstants;
+import com.termux.shared.data.DataUtils;
+import com.termux.shared.logger.Logger;
+import com.termux.shared.termux.TermuxUtils;
+
+import com.termux.shared.termux.TermuxConstants;
+
+import java.nio.charset.Charset;
+
+public class CrashUtils {
+
+    private static final String LOG_TAG = "CrashUtils";
+
+    /**
+     * Notify the user of a previous app crash by reading the crash info from the crash log file at
+     * {@link TermuxConstants#TERMUX_CRASH_LOG_FILE_PATH}. The crash log file would have been
+     * created by {@link com.termux.shared.crash.CrashHandler}.
+     *
+     * If the crash log file exists and is not empty and
+     * {@link TermuxPreferenceConstants.TERMUX_APP#KEY_CRASH_REPORT_NOTIFICATIONS_ENABLED} is
+     * enabled, then a notification will be shown for the crash on the
+     * {@link TermuxConstants#TERMUX_CRASH_REPORTS_NOTIFICATION_CHANNEL_NAME} channel, otherwise nothing will be done.
+     *
+     * After reading from the crash log file, it will be moved to {@link TermuxConstants#TERMUX_CRASH_LOG_BACKUP_FILE_PATH}.
+     *
+     * @param context The {@link Context} for operations.
+     * @param logTagParam The log tag to use for logging.
+     */
+    public static void notifyCrash(final Context context, final String logTagParam) {
+        if (context == null) return;
+
+
+        TermuxAppSharedPreferences preferences = new TermuxAppSharedPreferences(context);
+        // If user has disabled notifications for crashes
+        if (!preferences.getCrashReportNotificationsEnabled())
+            return;
+
+        new Thread() {
+            @Override
+            public void run() {
+                String logTag = DataUtils.getDefaultIfNull(logTagParam, LOG_TAG);
+
+                if (!FileUtils.regularFileExists(TermuxConstants.TERMUX_CRASH_LOG_FILE_PATH, false))
+                    return;
+
+                String errmsg;
+                StringBuilder reportStringBuilder = new StringBuilder();
+
+                // Read report string from crash log file
+                errmsg = FileUtils.readStringFromFile(context, "crash log", TermuxConstants.TERMUX_CRASH_LOG_FILE_PATH, Charset.defaultCharset(), reportStringBuilder, false);
+                if (errmsg != null) {
+                    Logger.logError(logTag, errmsg);
+                    return;
+                }
+
+                // Move crash log file to backup location if it exists
+                FileUtils.moveRegularFile(context, "crash log", TermuxConstants.TERMUX_CRASH_LOG_FILE_PATH, TermuxConstants.TERMUX_CRASH_LOG_BACKUP_FILE_PATH, true);
+                if (errmsg != null) {
+                    Logger.logError(logTag, errmsg);
+                }
+
+                String reportString = reportStringBuilder.toString();
+
+                if (reportString == null || reportString.isEmpty())
+                    return;
+
+                // Send a notification to show the crash log which when clicked will open the {@link ReportActivity}
+                // to show the details of the crash
+                String title = TermuxConstants.TERMUX_APP_NAME + " Crash Report";
+
+                Logger.logDebug(logTag, "The crash log file at \"" + TermuxConstants.TERMUX_CRASH_LOG_FILE_PATH +  "\" found. Sending \"" + title + "\" notification.");
+
+                Intent notificationIntent = ReportActivity.newInstance(context, new ReportInfo(UserAction.CRASH_REPORT, logTag, title, null, reportString, "\n\n" + TermuxUtils.getReportIssueMarkdownString(context), true));
+                PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, notificationIntent, PendingIntent.FLAG_UPDATE_CURRENT);
+
+                // Setup the notification channel if not already set up
+                setupCrashReportsNotificationChannel(context);
+
+                // Build the notification
+                Notification.Builder builder = getCrashReportsNotificationBuilder(context, title, null, null, pendingIntent, NotificationUtils.NOTIFICATION_MODE_VIBRATE);
+                if (builder == null)  return;
+
+                // Send the notification
+                int nextNotificationId = NotificationUtils.getNextNotificationId(context);
+                NotificationManager notificationManager = NotificationUtils.getNotificationManager(context);
+                if (notificationManager != null)
+                    notificationManager.notify(nextNotificationId, builder.build());
+            }
+        }.start();
+    }
+
+    /**
+     * Get {@link Notification.Builder} for {@link TermuxConstants#TERMUX_CRASH_REPORTS_NOTIFICATION_CHANNEL_ID}
+     * and {@link TermuxConstants#TERMUX_CRASH_REPORTS_NOTIFICATION_CHANNEL_NAME}.
+     *
+     * @param context The {@link Context} for operations.
+     * @param title The title for the notification.
+     * @param notificationText The second line text of the notification.
+     * @param notificationBigText The full text of the notification that may optionally be styled.
+     * @param pendingIntent The {@link PendingIntent} which should be sent when notification is clicked.
+     * @param notificationMode The notification mode. It must be one of {@code NotificationUtils.NOTIFICATION_MODE_*}.
+     * @return Returns the {@link Notification.Builder}.
+     */
+    @Nullable
+    public static Notification.Builder getCrashReportsNotificationBuilder(final Context context, final CharSequence title, final CharSequence notificationText, final CharSequence notificationBigText, final PendingIntent pendingIntent, final int notificationMode) {
+
+        Notification.Builder builder =  NotificationUtils.geNotificationBuilder(context,
+            TermuxConstants.TERMUX_CRASH_REPORTS_NOTIFICATION_CHANNEL_ID, Notification.PRIORITY_HIGH,
+            title, notificationText, notificationBigText, pendingIntent, notificationMode);
+
+        if (builder == null)  return null;
+
+        // Enable timestamp
+        builder.setShowWhen(true);
+
+        // Set notification icon
+        builder.setSmallIcon(R.drawable.ic_error_notification);
+
+        // Set background color for small notification icon
+        builder.setColor(0xFF607D8B);
+
+        // Dismiss on click
+        builder.setAutoCancel(true);
+
+        return builder;
+    }
+
+    /**
+     * Setup the notification channel for {@link TermuxConstants#TERMUX_CRASH_REPORTS_NOTIFICATION_CHANNEL_ID} and
+     * {@link TermuxConstants#TERMUX_CRASH_REPORTS_NOTIFICATION_CHANNEL_NAME}.
+     *
+     * @param context The {@link Context} for operations.
+     */
+    public static void setupCrashReportsNotificationChannel(final Context context) {
+        NotificationUtils.setupNotificationChannel(context, TermuxConstants.TERMUX_CRASH_REPORTS_NOTIFICATION_CHANNEL_ID,
+            TermuxConstants.TERMUX_CRASH_REPORTS_NOTIFICATION_CHANNEL_NAME, NotificationManager.IMPORTANCE_HIGH);
+    }
+
+}
--- a/app/src/main/java/com/termux/app/utils/PluginUtils.java
+++ b/app/src/main/java/com/termux/app/utils/PluginUtils.java
@@ -0,0 +1,330 @@
+package com.termux.app.utils;
+
+import android.app.Activity;
+import android.app.Notification;
+import android.app.NotificationManager;
+import android.app.PendingIntent;
+import android.content.Context;
+import android.content.Intent;
+import android.os.Bundle;
+
+import androidx.annotation.Nullable;
+
+import com.termux.R;
+import com.termux.shared.notification.NotificationUtils;
+import com.termux.shared.termux.TermuxConstants;
+import com.termux.shared.termux.TermuxConstants.TERMUX_APP.TERMUX_SERVICE;
+import com.termux.app.activities.ReportActivity;
+import com.termux.shared.logger.Logger;
+import com.termux.shared.settings.preferences.TermuxAppSharedPreferences;
+import com.termux.shared.settings.preferences.TermuxPreferenceConstants.TERMUX_APP;
+import com.termux.shared.settings.properties.SharedProperties;
+import com.termux.shared.settings.properties.TermuxPropertyConstants;
+import com.termux.app.models.ReportInfo;
+import com.termux.shared.models.ExecutionCommand;
+import com.termux.app.models.UserAction;
+import com.termux.shared.data.DataUtils;
+import com.termux.shared.markdown.MarkdownUtils;
+import com.termux.shared.termux.TermuxUtils;
+
+public class PluginUtils {
+
+    /** Required file permissions for the executable file of execute intent. Executable file must have read and execute permissions */
+    public static final String PLUGIN_EXECUTABLE_FILE_PERMISSIONS = "r-x"; // Default: "r-x"
+    /** Required file permissions for the working directory of execute intent. Working directory must have read and write permissions.
+     * Execute permissions should be attempted to be set, but ignored if they are missing */
+    public static final String PLUGIN_WORKING_DIRECTORY_PERMISSIONS = "rwx"; // Default: "rwx"
+
+    private static final String LOG_TAG = "PluginUtils";
+
+    /**
+     * Process {@link ExecutionCommand} result.
+     *
+     * The ExecutionCommand currentState must be greater or equal to
+     * {@link ExecutionCommand.ExecutionState#EXECUTED}.
+     * If the {@link ExecutionCommand#isPluginExecutionCommand} is {@code true} and
+     * {@link ExecutionCommand#pluginPendingIntent} is not {@code null}, then the result of commands
+     * are sent back to the {@link PendingIntent} creator.
+     *
+     * @param context The {@link Context} that will be used to send result intent to the {@link PendingIntent} creator.
+     * @param logTag The log tag to use for logging.
+     * @param executionCommand The {@link ExecutionCommand} to process.
+     */
+    public static void processPluginExecutionCommandResult(final Context context, String logTag, final ExecutionCommand executionCommand) {
+        if (executionCommand == null) return;
+
+        logTag = DataUtils.getDefaultIfNull(logTag, LOG_TAG);
+
+        if (!executionCommand.hasExecuted()) {
+            Logger.logWarn(logTag, "Ignoring call to processPluginExecutionCommandResult() since the execution command state is not higher than the ExecutionState.EXECUTED");
+            return;
+        }
+
+        Logger.logDebug(LOG_TAG, executionCommand.toString());
+
+        boolean result = true;
+
+        // If isPluginExecutionCommand is true and pluginPendingIntent is not null, then
+        // send pluginPendingIntent to its creator with the result
+        if (executionCommand.isPluginExecutionCommand && executionCommand.pluginPendingIntent != null) {
+            String errmsg = executionCommand.errmsg;
+
+            //Combine errmsg and stacktraces
+            if (executionCommand.isStateFailed()) {
+                errmsg = Logger.getMessageAndStackTracesString(executionCommand.errmsg, executionCommand.throwableList);
+            }
+
+            // Send pluginPendingIntent to its creator
+            result = sendPluginExecutionCommandResultPendingIntent(context, logTag, executionCommand.getCommandIdAndLabelLogString(), executionCommand.stdout, executionCommand.stderr, executionCommand.exitCode, executionCommand.errCode, errmsg, executionCommand.pluginPendingIntent);
+        }
+
+        if (!executionCommand.isStateFailed() && result)
+            executionCommand.setState(ExecutionCommand.ExecutionState.SUCCESS);
+    }
+
+    /**
+     * Process {@link ExecutionCommand} error.
+     *
+     * The ExecutionCommand currentState must be equal to {@link ExecutionCommand.ExecutionState#FAILED}.
+     * The {@link ExecutionCommand#errCode} must have been set to a value greater than
+     * {@link ExecutionCommand#RESULT_CODE_OK}.
+     * The {@link ExecutionCommand#errmsg} and any {@link ExecutionCommand#throwableList} must also
+     * be set with appropriate error info.
+     *
+     * If the {@link ExecutionCommand#isPluginExecutionCommand} is {@code true} and
+     * {@link ExecutionCommand#pluginPendingIntent} is not {@code null}, then the errors of commands
+     * are sent back to the {@link PendingIntent} creator.
+     *
+     * Otherwise if the {@link TERMUX_APP#KEY_PLUGIN_ERROR_NOTIFICATIONS_ENABLED} is
+     * enabled, then a flash and a notification will be shown for the error as well
+     * on the {@link TermuxConstants#TERMUX_PLUGIN_COMMAND_ERRORS_NOTIFICATION_CHANNEL_NAME} channel instead of just logging
+     * the error.
+     *
+     * @param context The {@link Context} for operations.
+     * @param logTag The log tag to use for logging.
+     * @param executionCommand The {@link ExecutionCommand} that failed.
+     * @param forceNotification If set to {@code true}, then a flash and notification will be shown
+     *                          regardless of if pending intent is {@code null} or
+     *                          {@link TERMUX_APP#KEY_PLUGIN_ERROR_NOTIFICATIONS_ENABLED}
+     *                          is {@code false}.
+     */
+    public static void processPluginExecutionCommandError(final Context context, String logTag, final ExecutionCommand executionCommand, boolean forceNotification) {
+        if (context == null || executionCommand == null) return;
+
+        logTag = DataUtils.getDefaultIfNull(logTag, LOG_TAG);
+
+        if (!executionCommand.isStateFailed()) {
+            Logger.logWarn(logTag, "Ignoring call to processPluginExecutionCommandError() since the execution command is not in ExecutionState.FAILED");
+            return;
+        }
+
+        // Log the error and any exception
+        Logger.logStackTracesWithMessage(logTag, "(" + executionCommand.errCode + ") " + executionCommand.errmsg, executionCommand.throwableList);
+
+
+        // If isPluginExecutionCommand is true and pluginPendingIntent is not null, then
+        // send pluginPendingIntent to its creator with the errors
+        if (executionCommand.isPluginExecutionCommand && executionCommand.pluginPendingIntent != null) {
+            String errmsg = executionCommand.errmsg;
+
+            //Combine errmsg and stacktraces
+            if (executionCommand.isStateFailed()) {
+                errmsg = Logger.getMessageAndStackTracesString(executionCommand.errmsg, executionCommand.throwableList);
+            }
+
+            sendPluginExecutionCommandResultPendingIntent(context, logTag, executionCommand.getCommandIdAndLabelLogString(), executionCommand.stdout, executionCommand.stderr, executionCommand.exitCode, executionCommand.errCode, errmsg, executionCommand.pluginPendingIntent);
+
+            // No need to show notifications if a pending intent was sent, let the caller handle the result himself
+            if (!forceNotification) return;
+        }
+
+
+        TermuxAppSharedPreferences preferences = new TermuxAppSharedPreferences(context);
+        // If user has disabled notifications for plugin, then just return
+        if (!preferences.getPluginErrorNotificationsEnabled() && !forceNotification)
+            return;
+
+        // Flash the errmsg
+        Logger.showToast(context, executionCommand.errmsg, true);
+
+        // Send a notification to show the errmsg which when clicked will open the {@link ReportActivity}
+        // to show the details of the error
+        String title = TermuxConstants.TERMUX_APP_NAME + " Plugin Execution Command Error";
+
+        StringBuilder reportString = new StringBuilder();
+
+        reportString.append(ExecutionCommand.getExecutionCommandMarkdownString(executionCommand));
+        reportString.append("\n\n").append(TermuxUtils.getAppInfoMarkdownString(context, true));
+        reportString.append("\n\n").append(TermuxUtils.getDeviceInfoMarkdownString(context));
+
+        Intent notificationIntent = ReportActivity.newInstance(context, new ReportInfo(UserAction.PLUGIN_EXECUTION_COMMAND, logTag, title, null, reportString.toString(), null,true));
+        PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, notificationIntent, PendingIntent.FLAG_UPDATE_CURRENT);
+
+        // Setup the notification channel if not already set up
+        setupPluginCommandErrorsNotificationChannel(context);
+
+        // Use markdown in notification
+        CharSequence notificationText = MarkdownUtils.getSpannedMarkdownText(context, executionCommand.errmsg);
+        //CharSequence notificationText = executionCommand.errmsg;
+
+        // Build the notification
+        Notification.Builder builder = getPluginCommandErrorsNotificationBuilder(context, title, notificationText, notificationText, pendingIntent, NotificationUtils.NOTIFICATION_MODE_VIBRATE);
+        if (builder == null)  return;
+
+        // Send the notification
+        int nextNotificationId = NotificationUtils.getNextNotificationId(context);
+        NotificationManager notificationManager = NotificationUtils.getNotificationManager(context);
+        if (notificationManager != null)
+            notificationManager.notify(nextNotificationId, builder.build());
+
+    }
+
+    /**
+     * Send {@link ExecutionCommand} result {@link PendingIntent} in the
+     * {@link TERMUX_SERVICE#EXTRA_PLUGIN_RESULT_BUNDLE} bundle.
+     *
+     *
+     * @param context The {@link Context} that will be used to send result intent to the {@link PendingIntent} creator.
+     * @param logTag The log tag to use for logging.
+     * @param label The label of {@link ExecutionCommand}.
+     * @param stdout The stdout of {@link ExecutionCommand}.
+     * @param stderr The stderr of {@link ExecutionCommand}.
+     * @param exitCode The exitCode of {@link ExecutionCommand}.
+     * @param errCode The errCode of {@link ExecutionCommand}.
+     * @param errmsg The errmsg of {@link ExecutionCommand}.
+     * @param pluginPendingIntent The pluginPendingIntent of {@link ExecutionCommand}.
+     * @return Returns {@code true} if pluginPendingIntent was successfully send, otherwise [@code false}.
+     */
+    public static boolean sendPluginExecutionCommandResultPendingIntent(Context context, String logTag, String label, String stdout, String stderr, Integer exitCode, Integer errCode, String errmsg, PendingIntent pluginPendingIntent) {
+        if (context == null || pluginPendingIntent == null) return false;
+
+        logTag = DataUtils.getDefaultIfNull(logTag, LOG_TAG);
+
+        Logger.logDebug(logTag,  "Sending execution result for Execution Command \"" + label +  "\" to " + pluginPendingIntent.getCreatorPackage());
+
+        String truncatedStdout = null;
+        String truncatedStderr = null;
+
+        String stdoutOriginalLength = (stdout == null) ? null: String.valueOf(stdout.length());
+        String stderrOriginalLength = (stderr == null) ? null: String.valueOf(stderr.length());
+
+        // Truncate stdout and stdout to max TRANSACTION_SIZE_LIMIT_IN_BYTES
+        if (stderr == null || stderr.isEmpty()) {
+            truncatedStdout = DataUtils.getTruncatedCommandOutput(stdout, DataUtils.TRANSACTION_SIZE_LIMIT_IN_BYTES, false, false, false);
+        } else if (stdout == null || stdout.isEmpty()) {
+            truncatedStderr = DataUtils.getTruncatedCommandOutput(stderr, DataUtils.TRANSACTION_SIZE_LIMIT_IN_BYTES, false, false, false);
+        } else {
+            truncatedStdout = DataUtils.getTruncatedCommandOutput(stdout, DataUtils.TRANSACTION_SIZE_LIMIT_IN_BYTES / 2, false, false, false);
+            truncatedStderr = DataUtils.getTruncatedCommandOutput(stderr, DataUtils.TRANSACTION_SIZE_LIMIT_IN_BYTES / 2, false, false, false);
+        }
+
+        if (truncatedStdout != null && truncatedStdout.length() < stdout.length()) {
+            Logger.logWarn(logTag, "Execution Result for Execution Command \"" + label +  "\" stdout length truncated from " + stdoutOriginalLength + " to " + truncatedStdout.length());
+            stdout = truncatedStdout;
+        }
+
+        if (truncatedStderr != null && truncatedStderr.length() < stderr.length()) {
+            Logger.logWarn(logTag, "Execution Result for Execution Command \"" + label +  "\" stderr length truncated from " + stderrOriginalLength + " to " + truncatedStderr.length());
+            stderr = truncatedStderr;
+        }
+
+        String errmsgOriginalLength = (errmsg == null) ? null: String.valueOf(errmsg.length());
+
+        // Truncate errmsg to max TRANSACTION_SIZE_LIMIT_IN_BYTES / 4
+        // trim from end to preserve start of stacktraces
+        String truncatedErrmsg = DataUtils.getTruncatedCommandOutput(errmsg, DataUtils.TRANSACTION_SIZE_LIMIT_IN_BYTES / 4, true, false, false);
+        if (truncatedErrmsg != null && truncatedErrmsg.length() < errmsg.length()) {
+            Logger.logWarn(logTag, "Execution Result for Execution Command \"" + label +  "\" errmsg length truncated from " + errmsgOriginalLength + " to " + truncatedErrmsg.length());
+            errmsg = truncatedErrmsg;
+        }
+
+
+        final Bundle resultBundle = new Bundle();
+        resultBundle.putString(TERMUX_SERVICE.EXTRA_PLUGIN_RESULT_BUNDLE_STDOUT, stdout);
+        resultBundle.putString(TERMUX_SERVICE.EXTRA_PLUGIN_RESULT_BUNDLE_STDOUT_ORIGINAL_LENGTH, stdoutOriginalLength);
+        resultBundle.putString(TERMUX_SERVICE.EXTRA_PLUGIN_RESULT_BUNDLE_STDERR, stderr);
+        resultBundle.putString(TERMUX_SERVICE.EXTRA_PLUGIN_RESULT_BUNDLE_STDERR_ORIGINAL_LENGTH, stderrOriginalLength);
+        if (exitCode != null) resultBundle.putInt(TERMUX_SERVICE.EXTRA_PLUGIN_RESULT_BUNDLE_EXIT_CODE, exitCode);
+        if (errCode != null) resultBundle.putInt(TERMUX_SERVICE.EXTRA_PLUGIN_RESULT_BUNDLE_ERR, errCode);
+        resultBundle.putString(TERMUX_SERVICE.EXTRA_PLUGIN_RESULT_BUNDLE_ERRMSG, errmsg);
+
+        Intent resultIntent = new Intent();
+        resultIntent.putExtra(TERMUX_SERVICE.EXTRA_PLUGIN_RESULT_BUNDLE, resultBundle);
+
+        try {
+            pluginPendingIntent.send(context, Activity.RESULT_OK, resultIntent);
+        } catch (PendingIntent.CanceledException e) {
+            // The caller doesn't want the result? That's fine, just ignore
+            Logger.logDebug(logTag,  "The Execution Command \"" + label +  "\" creator " + pluginPendingIntent.getCreatorPackage() + " does not want the results anymore");
+        }
+
+        return true;
+    }
+
+
+
+    /**
+     * Get {@link Notification.Builder} for {@link TermuxConstants#TERMUX_PLUGIN_COMMAND_ERRORS_NOTIFICATION_CHANNEL_ID}
+     * and {@link TermuxConstants#TERMUX_PLUGIN_COMMAND_ERRORS_NOTIFICATION_CHANNEL_NAME}.
+     *
+     * @param context The {@link Context} for operations.
+     * @param title The title for the notification.
+     * @param notificationText The second line text of the notification.
+     * @param notificationBigText The full text of the notification that may optionally be styled.
+     * @param pendingIntent The {@link PendingIntent} which should be sent when notification is clicked.
+     * @param notificationMode The notification mode. It must be one of {@code NotificationUtils.NOTIFICATION_MODE_*}.
+     * @return Returns the {@link Notification.Builder}.
+     */
+    @Nullable
+    public static Notification.Builder getPluginCommandErrorsNotificationBuilder(final Context context, final CharSequence title, final CharSequence notificationText, final CharSequence notificationBigText, final PendingIntent pendingIntent, final int notificationMode) {
+
+        Notification.Builder builder =  NotificationUtils.geNotificationBuilder(context,
+            TermuxConstants.TERMUX_PLUGIN_COMMAND_ERRORS_NOTIFICATION_CHANNEL_ID, Notification.PRIORITY_HIGH,
+            title, notificationText, notificationBigText, pendingIntent, notificationMode);
+
+        if (builder == null)  return null;
+
+        // Enable timestamp
+        builder.setShowWhen(true);
+
+        // Set notification icon
+        builder.setSmallIcon(R.drawable.ic_error_notification);
+
+        // Set background color for small notification icon
+        builder.setColor(0xFF607D8B);
+
+        // Dismiss on click
+        builder.setAutoCancel(true);
+
+        return builder;
+    }
+
+    /**
+     * Setup the notification channel for {@link TermuxConstants#TERMUX_PLUGIN_COMMAND_ERRORS_NOTIFICATION_CHANNEL_ID} and
+     * {@link TermuxConstants#TERMUX_PLUGIN_COMMAND_ERRORS_NOTIFICATION_CHANNEL_NAME}.
+     *
+     * @param context The {@link Context} for operations.
+     */
+    public static void setupPluginCommandErrorsNotificationChannel(final Context context) {
+        NotificationUtils.setupNotificationChannel(context, TermuxConstants.TERMUX_PLUGIN_COMMAND_ERRORS_NOTIFICATION_CHANNEL_ID,
+            TermuxConstants.TERMUX_PLUGIN_COMMAND_ERRORS_NOTIFICATION_CHANNEL_NAME, NotificationManager.IMPORTANCE_HIGH);
+    }
+
+
+
+    /**
+     * Check if {@link TermuxConstants#PROP_ALLOW_EXTERNAL_APPS} property is not set to "true".
+     *
+     * @param context The {@link Context} to get error string.
+     * @return Returns the {@code errmsg} if policy is violated, otherwise {@code null}.
+     */
+    public static String checkIfRunCommandServiceAllowExternalAppsPolicyIsViolated(final Context context) {
+        String errmsg = null;
+        if (!SharedProperties.isPropertyValueTrue(context, TermuxPropertyConstants.getTermuxPropertiesFile(), TermuxConstants.PROP_ALLOW_EXTERNAL_APPS)) {
+            errmsg = context.getString(R.string.error_run_command_service_allow_external_apps_ungranted);
+        }
+
+        return errmsg;
+    }
+
+}
--- a/app/src/main/java/com/termux/drawer/DrawerLayout.java
+++ b/app/src/main/java/com/termux/drawer/DrawerLayout.java
--- a/app/src/main/java/com/termux/drawer/DrawerLayoutCompatApi21.java
+++ b/app/src/main/java/com/termux/drawer/DrawerLayoutCompatApi21.java
@@ -1,88 +0,0 @@
-package com.termux.drawer;
-
-/*
- * Copyright (C) 2014 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-import android.annotation.SuppressLint;
-import android.annotation.TargetApi;
-import android.content.Context;
-import android.content.res.TypedArray;
-import android.graphics.drawable.Drawable;
-import android.os.Build;
-import android.view.Gravity;
-import android.view.View;
-import android.view.ViewGroup;
-import android.view.WindowInsets;
-
-/**
- * Provides functionality for DrawerLayout unique to API 21
- */
-@SuppressLint("RtlHardcoded")
-@TargetApi(Build.VERSION_CODES.LOLLIPOP)
-class DrawerLayoutCompatApi21 {
-
-	private static final int[] THEME_ATTRS = { android.R.attr.colorPrimaryDark };
-
-	public static void configureApplyInsets(DrawerLayout drawerLayout) {
-		drawerLayout.setOnApplyWindowInsetsListener(new InsetsListener());
-		drawerLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);
-	}
-
-	public static void dispatchChildInsets(View child, Object insets, int gravity) {
-		WindowInsets wi = (WindowInsets) insets;
-		if (gravity == Gravity.LEFT) {
-			wi = wi.replaceSystemWindowInsets(wi.getSystemWindowInsetLeft(), wi.getSystemWindowInsetTop(), 0, wi.getSystemWindowInsetBottom());
-		} else if (gravity == Gravity.RIGHT) {
-			wi = wi.replaceSystemWindowInsets(0, wi.getSystemWindowInsetTop(), wi.getSystemWindowInsetRight(), wi.getSystemWindowInsetBottom());
-		}
-		child.dispatchApplyWindowInsets(wi);
-	}
-
-	public static void applyMarginInsets(ViewGroup.MarginLayoutParams lp, Object insets, int gravity) {
-		WindowInsets wi = (WindowInsets) insets;
-		if (gravity == Gravity.LEFT) {
-			wi = wi.replaceSystemWindowInsets(wi.getSystemWindowInsetLeft(), wi.getSystemWindowInsetTop(), 0, wi.getSystemWindowInsetBottom());
-		} else if (gravity == Gravity.RIGHT) {
-			wi = wi.replaceSystemWindowInsets(0, wi.getSystemWindowInsetTop(), wi.getSystemWindowInsetRight(), wi.getSystemWindowInsetBottom());
-		}
-		lp.leftMargin = wi.getSystemWindowInsetLeft();
-		lp.topMargin = wi.getSystemWindowInsetTop();
-		lp.rightMargin = wi.getSystemWindowInsetRight();
-		lp.bottomMargin = wi.getSystemWindowInsetBottom();
-	}
-
-	public static int getTopInset(Object insets) {
-		return insets != null ? ((WindowInsets) insets).getSystemWindowInsetTop() : 0;
-	}
-
-	public static Drawable getDefaultStatusBarBackground(Context context) {
-		final TypedArray a = context.obtainStyledAttributes(THEME_ATTRS);
-		try {
-			return a.getDrawable(0);
-		} finally {
-			a.recycle();
-		}
-	}
-
-	static class InsetsListener implements View.OnApplyWindowInsetsListener {
-		@Override
-		public WindowInsets onApplyWindowInsets(View v, WindowInsets insets) {
-			final DrawerLayout drawerLayout = (DrawerLayout) v;
-			drawerLayout.setChildInsets(insets, insets.getSystemWindowInsetTop() > 0);
-			return insets.consumeSystemWindowInsets();
-		}
-	}
-}
--- a/app/src/main/java/com/termux/drawer/ViewDragHelper.java
+++ b/app/src/main/java/com/termux/drawer/ViewDragHelper.java
--- a/app/src/main/java/com/termux/drawer/package-info.java
+++ b/app/src/main/java/com/termux/drawer/package-info.java
@@ -1,10 +0,0 @@
-/**
- * Extraction (and some minor cleanup to get rid of warnings) of DrawerLayout from the
- * <a href="http://developer.android.com/tools/support-library/index.html">Android Support Library</a>.
- * 
- * Source at:
- * https://android.googlesource.com/platform/frameworks/support/+/refs/heads/master/v4/java/android/support/v4/widget/DrawerLayout.java
- * https://android.googlesource.com/platform/frameworks/support/+/refs/heads/master/v4/java/android/support/v4/widget/ViewDragHelper.java
- */
-package com.termux.drawer;
-
--- a/app/src/main/java/com/termux/filepicker/TermuxDocumentsProvider.java
+++ b/app/src/main/java/com/termux/filepicker/TermuxDocumentsProvider.java
@@ -0,0 +1,268 @@
+package com.termux.filepicker;
+
+import android.content.res.AssetFileDescriptor;
+import android.database.Cursor;
+import android.database.MatrixCursor;
+import android.graphics.Point;
+import android.os.CancellationSignal;
+import android.os.ParcelFileDescriptor;
+import android.provider.DocumentsContract.Document;
+import android.provider.DocumentsContract.Root;
+import android.provider.DocumentsProvider;
+import android.webkit.MimeTypeMap;
+
+import com.termux.R;
+import com.termux.shared.termux.TermuxConstants;
+
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.util.Collections;
+import java.util.LinkedList;
+
+/**
+ * A document provider for the Storage Access Framework which exposes the files in the
+ * $HOME/ directory to other apps.
+ * <p/>
+ * Note that this replaces providing an activity matching the ACTION_GET_CONTENT intent:
+ * <p/>
+ * "A document provider and ACTION_GET_CONTENT should be considered mutually exclusive. If you
+ * support both of them simultaneously, your app will appear twice in the system picker UI,
+ * offering two different ways of accessing your stored data. This would be confusing for users."
+ * - http://developer.android.com/guide/topics/providers/document-provider.html#43
+ */
+public class TermuxDocumentsProvider extends DocumentsProvider {
+
+    private static final String ALL_MIME_TYPES = "*/*";
+
+    private static final File BASE_DIR = TermuxConstants.TERMUX_HOME_DIR;
+
+
+    // The default columns to return information about a root if no specific
+    // columns are requested in a query.
+    private static final String[] DEFAULT_ROOT_PROJECTION = new String[]{
+        Root.COLUMN_ROOT_ID,
+        Root.COLUMN_MIME_TYPES,
+        Root.COLUMN_FLAGS,
+        Root.COLUMN_ICON,
+        Root.COLUMN_TITLE,
+        Root.COLUMN_SUMMARY,
+        Root.COLUMN_DOCUMENT_ID,
+        Root.COLUMN_AVAILABLE_BYTES
+    };
+
+    // The default columns to return information about a document if no specific
+    // columns are requested in a query.
+    private static final String[] DEFAULT_DOCUMENT_PROJECTION = new String[]{
+        Document.COLUMN_DOCUMENT_ID,
+        Document.COLUMN_MIME_TYPE,
+        Document.COLUMN_DISPLAY_NAME,
+        Document.COLUMN_LAST_MODIFIED,
+        Document.COLUMN_FLAGS,
+        Document.COLUMN_SIZE
+    };
+
+    @Override
+    public Cursor queryRoots(String[] projection) {
+        final MatrixCursor result = new MatrixCursor(projection != null ? projection : DEFAULT_ROOT_PROJECTION);
+        final String applicationName = getContext().getString(R.string.application_name);
+
+        final MatrixCursor.RowBuilder row = result.newRow();
+        row.add(Root.COLUMN_ROOT_ID, getDocIdForFile(BASE_DIR));
+        row.add(Root.COLUMN_DOCUMENT_ID, getDocIdForFile(BASE_DIR));
+        row.add(Root.COLUMN_SUMMARY, null);
+        row.add(Root.COLUMN_FLAGS, Root.FLAG_SUPPORTS_CREATE | Root.FLAG_SUPPORTS_SEARCH | Root.FLAG_SUPPORTS_IS_CHILD);
+        row.add(Root.COLUMN_TITLE, applicationName);
+        row.add(Root.COLUMN_MIME_TYPES, ALL_MIME_TYPES);
+        row.add(Root.COLUMN_AVAILABLE_BYTES, BASE_DIR.getFreeSpace());
+        row.add(Root.COLUMN_ICON, R.mipmap.ic_launcher);
+        return result;
+    }
+
+    @Override
+    public Cursor queryDocument(String documentId, String[] projection) throws FileNotFoundException {
+        final MatrixCursor result = new MatrixCursor(projection != null ? projection : DEFAULT_DOCUMENT_PROJECTION);
+        includeFile(result, documentId, null);
+        return result;
+    }
+
+    @Override
+    public Cursor queryChildDocuments(String parentDocumentId, String[] projection, String sortOrder) throws FileNotFoundException {
+        final MatrixCursor result = new MatrixCursor(projection != null ? projection : DEFAULT_DOCUMENT_PROJECTION);
+        final File parent = getFileForDocId(parentDocumentId);
+        for (File file : parent.listFiles()) {
+            includeFile(result, null, file);
+        }
+        return result;
+    }
+
+    @Override
+    public ParcelFileDescriptor openDocument(final String documentId, String mode, CancellationSignal signal) throws FileNotFoundException {
+        final File file = getFileForDocId(documentId);
+        final int accessMode = ParcelFileDescriptor.parseMode(mode);
+        return ParcelFileDescriptor.open(file, accessMode);
+    }
+
+    @Override
+    public AssetFileDescriptor openDocumentThumbnail(String documentId, Point sizeHint, CancellationSignal signal) throws FileNotFoundException {
+        final File file = getFileForDocId(documentId);
+        final ParcelFileDescriptor pfd = ParcelFileDescriptor.open(file, ParcelFileDescriptor.MODE_READ_ONLY);
+        return new AssetFileDescriptor(pfd, 0, file.length());
+    }
+
+    @Override
+    public boolean onCreate() {
+        return true;
+    }
+
+    @Override
+    public String createDocument(String parentDocumentId, String mimeType, String displayName) throws FileNotFoundException {
+        File newFile = new File(parentDocumentId, displayName);
+        int noConflictId = 2;
+        while (newFile.exists()) {
+            newFile = new File(parentDocumentId, displayName + " (" + noConflictId++ + ")");
+        }
+        try {
+            boolean succeeded;
+            if (Document.MIME_TYPE_DIR.equals(mimeType)) {
+                succeeded = newFile.mkdir();
+            } else {
+                succeeded = newFile.createNewFile();
+            }
+            if (!succeeded) {
+                throw new FileNotFoundException("Failed to create document with id " + newFile.getPath());
+            }
+        } catch (IOException e) {
+            throw new FileNotFoundException("Failed to create document with id " + newFile.getPath());
+        }
+        return newFile.getPath();
+    }
+
+    @Override
+    public void deleteDocument(String documentId) throws FileNotFoundException {
+        File file = getFileForDocId(documentId);
+        if (!file.delete()) {
+            throw new FileNotFoundException("Failed to delete document with id " + documentId);
+        }
+    }
+
+    @Override
+    public String getDocumentType(String documentId) throws FileNotFoundException {
+        File file = getFileForDocId(documentId);
+        return getMimeType(file);
+    }
+
+    @Override
+    public Cursor querySearchDocuments(String rootId, String query, String[] projection) throws FileNotFoundException {
+        final MatrixCursor result = new MatrixCursor(projection != null ? projection : DEFAULT_DOCUMENT_PROJECTION);
+        final File parent = getFileForDocId(rootId);
+
+        // This example implementation searches file names for the query and doesn't rank search
+        // results, so we can stop as soon as we find a sufficient number of matches.  Other
+        // implementations might rank results and use other data about files, rather than the file
+        // name, to produce a match.
+        final LinkedList<File> pending = new LinkedList<>();
+        pending.add(parent);
+
+        final int MAX_SEARCH_RESULTS = 50;
+        while (!pending.isEmpty() && result.getCount() < MAX_SEARCH_RESULTS) {
+            final File file = pending.removeFirst();
+            // Avoid directories outside the $HOME directory linked with symlinks (to avoid e.g. search
+            // through the whole SD card).
+            boolean isInsideHome;
+            try {
+                isInsideHome = file.getCanonicalPath().startsWith(TermuxConstants.TERMUX_HOME_DIR_PATH);
+            } catch (IOException e) {
+                isInsideHome = true;
+            }
+            if (isInsideHome) {
+                if (file.isDirectory()) {
+                    Collections.addAll(pending, file.listFiles());
+                } else {
+                    if (file.getName().toLowerCase().contains(query)) {
+                        includeFile(result, null, file);
+                    }
+                }
+            }
+        }
+
+        return result;
+    }
+
+    @Override
+    public boolean isChildDocument(String parentDocumentId, String documentId) {
+        return documentId.startsWith(parentDocumentId);
+    }
+
+    /**
+     * Get the document id given a file. This document id must be consistent across time as other
+     * applications may save the ID and use it to reference documents later.
+     * <p/>
+     * The reverse of @{link #getFileForDocId}.
+     */
+    private static String getDocIdForFile(File file) {
+        return file.getAbsolutePath();
+    }
+
+    /**
+     * Get the file given a document id (the reverse of {@link #getDocIdForFile(File)}).
+     */
+    private static File getFileForDocId(String docId) throws FileNotFoundException {
+        final File f = new File(docId);
+        if (!f.exists()) throw new FileNotFoundException(f.getAbsolutePath() + " not found");
+        return f;
+    }
+
+    private static String getMimeType(File file) {
+        if (file.isDirectory()) {
+            return Document.MIME_TYPE_DIR;
+        } else {
+            final String name = file.getName();
+            final int lastDot = name.lastIndexOf('.');
+            if (lastDot >= 0) {
+                final String extension = name.substring(lastDot + 1).toLowerCase();
+                final String mime = MimeTypeMap.getSingleton().getMimeTypeFromExtension(extension);
+                if (mime != null) return mime;
+            }
+            return "application/octet-stream";
+        }
+    }
+
+    /**
+     * Add a representation of a file to a cursor.
+     *
+     * @param result the cursor to modify
+     * @param docId  the document ID representing the desired file (may be null if given file)
+     * @param file   the File object representing the desired file (may be null if given docID)
+     */
+    private void includeFile(MatrixCursor result, String docId, File file)
+        throws FileNotFoundException {
+        if (docId == null) {
+            docId = getDocIdForFile(file);
+        } else {
+            file = getFileForDocId(docId);
+        }
+
+        int flags = 0;
+        if (file.isDirectory()) {
+            if (file.canWrite()) flags |= Document.FLAG_DIR_SUPPORTS_CREATE;
+        } else if (file.canWrite()) {
+            flags |= Document.FLAG_SUPPORTS_WRITE;
+        }
+        if (file.getParentFile().canWrite()) flags |= Document.FLAG_SUPPORTS_DELETE;
+
+        final String displayName = file.getName();
+        final String mimeType = getMimeType(file);
+        if (mimeType.startsWith("image/")) flags |= Document.FLAG_SUPPORTS_THUMBNAIL;
+
+        final MatrixCursor.RowBuilder row = result.newRow();
+        row.add(Document.COLUMN_DOCUMENT_ID, docId);
+        row.add(Document.COLUMN_DISPLAY_NAME, displayName);
+        row.add(Document.COLUMN_SIZE, file.length());
+        row.add(Document.COLUMN_MIME_TYPE, mimeType);
+        row.add(Document.COLUMN_LAST_MODIFIED, file.lastModified());
+        row.add(Document.COLUMN_FLAGS, flags);
+        row.add(Document.COLUMN_ICON, R.mipmap.ic_launcher);
+    }
+
+}
--- a/app/src/main/java/com/termux/filepicker/TermuxFilePickerActivity.java
+++ b/app/src/main/java/com/termux/filepicker/TermuxFilePickerActivity.java
@@ -1,106 +0,0 @@
-package com.termux.filepicker;
-
-import android.annotation.SuppressLint;
-import android.app.Activity;
-import android.app.ListActivity;
-import android.content.Intent;
-import android.net.Uri;
-import android.os.Bundle;
-import android.view.MenuItem;
-import android.view.View;
-import android.widget.ArrayAdapter;
-import android.widget.ListView;
-
-import com.termux.R;
-
-import java.io.File;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.Collections;
-import java.util.Comparator;
-import java.util.List;
-
-/** Activity allowing picking files from the $HOME folder. */
-public class TermuxFilePickerActivity extends ListActivity {
-
-    @SuppressLint("SdCardPath")
-    final String TERMUX_HOME = "/data/data/com.termux/files/home";
-
-    private File mCurrentDirectory;
-    private final List<File> mFiles = new ArrayList<>();
-    private final List<String> mFileNames = new ArrayList<>();
-    private ArrayAdapter mAdapter;
-
-    @Override
-    protected void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        setContentView(R.layout.file_picker);
-
-        mAdapter = new ArrayAdapter<>(this, android.R.layout.simple_list_item_1, mFileNames);
-
-        enterDirectory(new File(TERMUX_HOME));
-        setListAdapter(mAdapter);
-    }
-
-    @Override
-    public boolean onOptionsItemSelected(MenuItem item) {
-        int id = item.getItemId();
-        if (id == android.R.id.home) {
-            enterDirectory(mCurrentDirectory.getParentFile());
-            return true;
-        } else {
-            return super.onOptionsItemSelected(item);
-        }
-    }
-
-    @Override
-    protected void onListItemClick(ListView l, View v, int position, long id) {
-        super.onListItemClick(l, v, position, id);
-        File requestFile = mFiles.get(position);
-        if (requestFile.isDirectory()) {
-            enterDirectory(requestFile);
-        } else {
-            Uri returnUri = Uri.withAppendedPath(Uri.parse("content://com.termux.filepicker.provider/"), requestFile.getAbsolutePath());
-            Intent returnIntent = new Intent().setData(returnUri);
-            returnIntent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
-            setResult(Activity.RESULT_OK, returnIntent);
-            finish();
-        }
-    }
-
-    void enterDirectory(File directory) {
-        getActionBar().setDisplayHomeAsUpEnabled(!directory.getAbsolutePath().equals(TERMUX_HOME));
-
-        String title = directory.getAbsolutePath() + "/";
-        if (title.startsWith(TERMUX_HOME)) {
-            title = "~" + title.substring(TERMUX_HOME.length(), title.length());
-        }
-        setTitle(title);
-
-        mCurrentDirectory = directory;
-        mFiles.clear();
-        mFileNames.clear();
-        mFiles.addAll(Arrays.asList(mCurrentDirectory.listFiles()));
-
-        Collections.sort(mFiles, new Comparator<File>() {
-            @Override
-            public int compare(File f1, File f2) {
-                final String n1 = f1.getName();
-                final String n2 = f2.getName();
-                // Display dot folders last:
-                if (n1.startsWith(".") && !n2.startsWith(".")) {
-                    return 1;
-                } else if (n2.startsWith(".") && !n1.startsWith(".")) {
-                    return -1;
-                }
-                return n1.compareToIgnoreCase(n2);
-            }
-        });
-
-        for (File file : mFiles) {
-            mFileNames.add(file.getName() + (file.isDirectory() ? "/" : ""));
-        }
-        mAdapter.notifyDataSetChanged();
-    }
-
-}
--- a/app/src/main/java/com/termux/filepicker/TermuxFilePickerProvider.java
+++ b/app/src/main/java/com/termux/filepicker/TermuxFilePickerProvider.java
@@ -1,51 +0,0 @@
-package com.termux.filepicker;
-
-
-import android.content.ContentProvider;
-import android.content.ContentValues;
-import android.database.Cursor;
-import android.net.Uri;
-import android.os.ParcelFileDescriptor;
-import android.support.annotation.NonNull;
-
-import java.io.File;
-import java.io.FileNotFoundException;
-
-/** Provider of files content uris picked from {@link com.termux.filepicker.TermuxFilePickerActivity}. */
-public class TermuxFilePickerProvider extends ContentProvider {
-    @Override
-    public boolean onCreate() {
-        return false;
-    }
-
-    @Override
-    public Cursor query(@NonNull Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder) {
-        return null;
-    }
-
-    @Override
-    public String getType(@NonNull Uri uri) {
-        return null;
-    }
-
-    @Override
-    public Uri insert(@NonNull Uri uri, ContentValues values) {
-        return null;
-    }
-
-    @Override
-    public int delete(@NonNull Uri uri, String selection, String[] selectionArgs) {
-        return 0;
-    }
-
-    @Override
-    public int update(@NonNull Uri uri, ContentValues values, String selection, String[] selectionArgs) {
-        return 0;
-    }
-
-    @Override
-    public ParcelFileDescriptor openFile(@NonNull Uri uri, @NonNull String mode) throws FileNotFoundException {
-        File file = new File(uri.getPath());
-        return ParcelFileDescriptor.open(file, ParcelFileDescriptor.MODE_READ_ONLY);
-    }
-}
--- a/app/src/main/java/com/termux/filepicker/TermuxFileReceiverActivity.java
+++ b/app/src/main/java/com/termux/filepicker/TermuxFileReceiverActivity.java
@@ -0,0 +1,202 @@
+package com.termux.filepicker;
+
+import android.app.Activity;
+import android.app.AlertDialog;
+import android.content.Intent;
+import android.database.Cursor;
+import android.net.Uri;
+import android.provider.OpenableColumns;
+import android.util.Patterns;
+
+import com.termux.R;
+import com.termux.shared.interact.DialogUtils;
+import com.termux.shared.termux.TermuxConstants;
+import com.termux.shared.termux.TermuxConstants.TERMUX_APP.TERMUX_SERVICE;
+import com.termux.app.TermuxService;
+import com.termux.shared.logger.Logger;
+
+import java.io.ByteArrayInputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.charset.StandardCharsets;
+import java.util.regex.Pattern;
+
+public class TermuxFileReceiverActivity extends Activity {
+
+    static final String TERMUX_RECEIVEDIR = TermuxConstants.TERMUX_FILES_DIR_PATH + "/home/downloads";
+    static final String EDITOR_PROGRAM = TermuxConstants.TERMUX_HOME_DIR_PATH + "/bin/termux-file-editor";
+    static final String URL_OPENER_PROGRAM = TermuxConstants.TERMUX_HOME_DIR_PATH + "/bin/termux-url-opener";
+
+    /**
+     * If the activity should be finished when the name input dialog is dismissed. This is disabled
+     * before showing an error dialog, since the act of showing the error dialog will cause the
+     * name input dialog to be implicitly dismissed, and we do not want to finish the activity directly
+     * when showing the error dialog.
+     */
+    boolean mFinishOnDismissNameDialog = true;
+
+    private static final String LOG_TAG = "TermuxFileReceiverActivity";
+
+    static boolean isSharedTextAnUrl(String sharedText) {
+        return Patterns.WEB_URL.matcher(sharedText).matches()
+            || Pattern.matches("magnet:\\?xt=urn:btih:.*?", sharedText);
+    }
+
+    @Override
+    protected void onResume() {
+        super.onResume();
+
+        final Intent intent = getIntent();
+        final String action = intent.getAction();
+        final String type = intent.getType();
+        final String scheme = intent.getScheme();
+
+        if (Intent.ACTION_SEND.equals(action) && type != null) {
+            final String sharedText = intent.getStringExtra(Intent.EXTRA_TEXT);
+            final Uri sharedUri = intent.getParcelableExtra(Intent.EXTRA_STREAM);
+
+            if (sharedText != null) {
+                if (isSharedTextAnUrl(sharedText)) {
+                    handleUrlAndFinish(sharedText);
+                } else {
+                    String subject = intent.getStringExtra(Intent.EXTRA_SUBJECT);
+                    if (subject == null) subject = intent.getStringExtra(Intent.EXTRA_TITLE);
+                    if (subject != null) subject += ".txt";
+                    promptNameAndSave(new ByteArrayInputStream(sharedText.getBytes(StandardCharsets.UTF_8)), subject);
+                }
+            } else if (sharedUri != null) {
+                handleContentUri(sharedUri, intent.getStringExtra(Intent.EXTRA_TITLE));
+            } else {
+                showErrorDialogAndQuit("Send action without content - nothing to save.");
+            }
+        } else if ("content".equals(scheme)) {
+            handleContentUri(intent.getData(), intent.getStringExtra(Intent.EXTRA_TITLE));
+        } else if ("file".equals(scheme)) {
+            // When e.g. clicking on a downloaded apk:
+            String path = intent.getData().getPath();
+            File file = new File(path);
+            try {
+                FileInputStream in = new FileInputStream(file);
+                promptNameAndSave(in, file.getName());
+            } catch (FileNotFoundException e) {
+                showErrorDialogAndQuit("Cannot open file: " + e.getMessage() + ".");
+            }
+        } else {
+            showErrorDialogAndQuit("Unable to receive any file or URL.");
+        }
+    }
+
+    void showErrorDialogAndQuit(String message) {
+        mFinishOnDismissNameDialog = false;
+        new AlertDialog.Builder(this).setMessage(message).setOnDismissListener(dialog -> finish()).setPositiveButton(android.R.string.ok, (dialog, which) -> finish()).show();
+    }
+
+    void handleContentUri(final Uri uri, String subjectFromIntent) {
+        try {
+            String attachmentFileName = null;
+
+            String[] projection = new String[]{OpenableColumns.DISPLAY_NAME};
+            try (Cursor c = getContentResolver().query(uri, projection, null, null, null)) {
+                if (c != null && c.moveToFirst()) {
+                    final int fileNameColumnId = c.getColumnIndex(OpenableColumns.DISPLAY_NAME);
+                    if (fileNameColumnId >= 0) attachmentFileName = c.getString(fileNameColumnId);
+                }
+            }
+
+            if (attachmentFileName == null) attachmentFileName = subjectFromIntent;
+
+            InputStream in = getContentResolver().openInputStream(uri);
+            promptNameAndSave(in, attachmentFileName);
+        } catch (Exception e) {
+            showErrorDialogAndQuit("Unable to handle shared content:\n\n" + e.getMessage());
+            Logger.logStackTraceWithMessage(LOG_TAG, "handleContentUri(uri=" + uri + ") failed", e);
+        }
+    }
+
+    void promptNameAndSave(final InputStream in, final String attachmentFileName) {
+        DialogUtils.textInput(this, R.string.title_file_received, attachmentFileName, R.string.action_file_received_edit, text -> {
+            File outFile = saveStreamWithName(in, text);
+            if (outFile == null) return;
+
+            final File editorProgramFile = new File(EDITOR_PROGRAM);
+            if (!editorProgramFile.isFile()) {
+                showErrorDialogAndQuit("The following file does not exist:\n$HOME/bin/termux-file-editor\n\n"
+                    + "Create this file as a script or a symlink - it will be called with the received file as only argument.");
+                return;
+            }
+
+            // Do this for the user if necessary:
+            //noinspection ResultOfMethodCallIgnored
+            editorProgramFile.setExecutable(true);
+
+            final Uri scriptUri = new Uri.Builder().scheme("file").path(EDITOR_PROGRAM).build();
+
+            Intent executeIntent = new Intent(TERMUX_SERVICE.ACTION_SERVICE_EXECUTE, scriptUri);
+            executeIntent.setClass(TermuxFileReceiverActivity.this, TermuxService.class);
+            executeIntent.putExtra(TERMUX_SERVICE.EXTRA_ARGUMENTS, new String[]{outFile.getAbsolutePath()});
+            startService(executeIntent);
+            finish();
+        },
+            R.string.action_file_received_open_directory, text -> {
+                if (saveStreamWithName(in, text) == null) return;
+
+                Intent executeIntent = new Intent(TERMUX_SERVICE.ACTION_SERVICE_EXECUTE);
+                executeIntent.putExtra(TERMUX_SERVICE.EXTRA_WORKDIR, TERMUX_RECEIVEDIR);
+                executeIntent.setClass(TermuxFileReceiverActivity.this, TermuxService.class);
+                startService(executeIntent);
+                finish();
+            },
+            android.R.string.cancel, text -> finish(), dialog -> {
+                if (mFinishOnDismissNameDialog) finish();
+            });
+    }
+
+    public File saveStreamWithName(InputStream in, String attachmentFileName) {
+        File receiveDir = new File(TERMUX_RECEIVEDIR);
+        if (!receiveDir.isDirectory() && !receiveDir.mkdirs()) {
+            showErrorDialogAndQuit("Cannot create directory: " + receiveDir.getAbsolutePath());
+            return null;
+        }
+        try {
+            final File outFile = new File(receiveDir, attachmentFileName);
+            try (FileOutputStream f = new FileOutputStream(outFile)) {
+                byte[] buffer = new byte[4096];
+                int readBytes;
+                while ((readBytes = in.read(buffer)) > 0) {
+                    f.write(buffer, 0, readBytes);
+                }
+            }
+            return outFile;
+        } catch (IOException e) {
+            showErrorDialogAndQuit("Error saving file:\n\n" + e);
+            Logger.logStackTraceWithMessage(LOG_TAG, "Error saving file", e);
+            return null;
+        }
+    }
+
+    void handleUrlAndFinish(final String url) {
+        final File urlOpenerProgramFile = new File(URL_OPENER_PROGRAM);
+        if (!urlOpenerProgramFile.isFile()) {
+            showErrorDialogAndQuit("The following file does not exist:\n$HOME/bin/termux-url-opener\n\n"
+                + "Create this file as a script or a symlink - it will be called with the shared URL as only argument.");
+            return;
+        }
+
+        // Do this for the user if necessary:
+        //noinspection ResultOfMethodCallIgnored
+        urlOpenerProgramFile.setExecutable(true);
+
+        final Uri urlOpenerProgramUri = new Uri.Builder().scheme("file").path(URL_OPENER_PROGRAM).build();
+
+        Intent executeIntent = new Intent(TERMUX_SERVICE.ACTION_SERVICE_EXECUTE, urlOpenerProgramUri);
+        executeIntent.setClass(TermuxFileReceiverActivity.this, TermuxService.class);
+        executeIntent.putExtra(TERMUX_SERVICE.EXTRA_ARGUMENTS, new String[]{url});
+        startService(executeIntent);
+        finish();
+    }
+
+}
--- a/app/src/main/java/com/termux/terminal/ByteQueue.java
+++ b/app/src/main/java/com/termux/terminal/ByteQueue.java
@@ -1,108 +0,0 @@
-package com.termux.terminal;
-
-/** A circular byte buffer allowing one producer and one consumer thread. */
-final class ByteQueue {
-
-	private final byte[] mBuffer;
-	private int mHead;
-	private int mStoredBytes;
-	private boolean mOpen = true;
-
-	public ByteQueue(int size) {
-		mBuffer = new byte[size];
-	}
-
-	public synchronized void close() {
-		mOpen = false;
-		notify();
-	}
-
-	public synchronized int read(byte[] buffer, boolean block) {
-		while (mStoredBytes == 0 && mOpen) {
-			if (block) {
-				try {
-					wait();
-				} catch (InterruptedException e) {
-					// Ignore.
-				}
-			} else {
-				return 0;
-			}
-		}
-		if (!mOpen) return -1;
-
-		int totalRead = 0;
-		int bufferLength = mBuffer.length;
-		boolean wasFull = bufferLength == mStoredBytes;
-		int length = buffer.length;
-		int offset = 0;
-		while (length > 0 && mStoredBytes > 0) {
-			int oneRun = Math.min(bufferLength - mHead, mStoredBytes);
-			int bytesToCopy = Math.min(length, oneRun);
-			System.arraycopy(mBuffer, mHead, buffer, offset, bytesToCopy);
-			mHead += bytesToCopy;
-			if (mHead >= bufferLength) mHead = 0;
-			mStoredBytes -= bytesToCopy;
-			length -= bytesToCopy;
-			offset += bytesToCopy;
-			totalRead += bytesToCopy;
-		}
-		if (wasFull) notify();
-		return totalRead;
-	}
-
-	/**
-	 * Attempt to write the specified portion of the provided buffer to the queue.
-	 * 
-	 * Returns whether the output was totally written, false if it was closed before.
-	 */
-	public boolean write(byte[] buffer, int offset, int lengthToWrite) {
-		if (lengthToWrite + offset > buffer.length) {
-			throw new IllegalArgumentException("length + offset > buffer.length");
-		} else if (lengthToWrite <= 0) {
-			throw new IllegalArgumentException("length <= 0");
-		}
-
-		final int bufferLength = mBuffer.length;
-
-		synchronized (this) {
-			while (lengthToWrite > 0) {
-				while (bufferLength == mStoredBytes && mOpen) {
-					try {
-						wait();
-					} catch (InterruptedException e) {
-						// Ignore.
-					}
-				}
-				if (!mOpen) return false;
-				final boolean wasEmpty = mStoredBytes == 0;
-				int bytesToWriteBeforeWaiting = Math.min(lengthToWrite, bufferLength - mStoredBytes);
-				lengthToWrite -= bytesToWriteBeforeWaiting;
-
-				while (bytesToWriteBeforeWaiting > 0) {
-					int tail = mHead + mStoredBytes;
-					int oneRun;
-					if (tail >= bufferLength) {
-						// Buffer: [.............]
-						// ________________H_______T
-						// =>
-						// Buffer: [.............]
-						// ___________T____H
-						// onRun= _____----_
-						tail = tail - bufferLength;
-						oneRun = mHead - tail;
-					} else {
-						oneRun = bufferLength - tail;
-					}
-					int bytesToCopy = Math.min(oneRun, bytesToWriteBeforeWaiting);
-					System.arraycopy(buffer, offset, mBuffer, tail, bytesToCopy);
-					offset += bytesToCopy;
-					bytesToWriteBeforeWaiting -= bytesToCopy;
-					mStoredBytes += bytesToCopy;
-				}
-				if (wasEmpty) notify();
-			}
-		}
-		return true;
-	}
-}
--- a/app/src/main/java/com/termux/terminal/EmulatorDebug.java
+++ b/app/src/main/java/com/termux/terminal/EmulatorDebug.java
@@ -1,10 +0,0 @@
-package com.termux.terminal;
-
-import android.util.Log;
-
-public final class EmulatorDebug {
-
-	/** The tag to use with {@link Log}. */
-	public static final String LOG_TAG = "termux";
-
-}
--- a/app/src/main/java/com/termux/terminal/JNI.java
+++ b/app/src/main/java/com/termux/terminal/JNI.java
@@ -1,55 +0,0 @@
-package com.termux.terminal;
-
-/**
- * Native methods for creating and managing pseudoterminal subprocesses. C code is in jni/termux.c.
- */
-final class JNI {
-
-	static {
-		System.loadLibrary("termux");
-	}
-
-	/**
-	 * Create a subprocess. Differs from {@link ProcessBuilder} in that a pseudoterminal is used to communicate with the
-	 * subprocess.
-	 * 
-	 * Callers are responsible for calling {@link #close(int)} on the returned file descriptor.
-	 * 
-	 * @param cmd
-	 *            The command to execute
-	 * @param cwd
-	 *            The current working directory for the executed command
-	 * @param args
-	 *            An array of arguments to the command
-	 * @param envVars
-	 *            An array of strings of the form "VAR=value" to be added to the environment of the process
-	 * @param processId
-	 *            A one-element array to which the process ID of the started process will be written.
-	 * @return the file descriptor resulting from opening /dev/ptmx master device. The sub process will have opened the
-	 *         slave device counterpart (/dev/pts/$N) and have it as stdint, stdout and stderr.
-	 */
-	public static native int createSubprocess(String cmd, String cwd, String[] args, String[] envVars, int[] processId);
-
-	/** Set the window size for a given pty, which allows connected programs to learn how large their screen is. */
-	public static native void setPtyWindowSize(int fd, int rows, int cols);
-
-	/**
-	 * Causes the calling thread to wait for the process associated with the receiver to finish executing.
-	 * 
-	 * @return if >= 0, the exit status of the process. If < 0, the signal causing the process to stop negated.
-	 */
-	public static native int waitFor(int processId);
-
-	/**
-	 * Send SIGHUP to a process group.
-	 * 
-	 * There exists a kill(2) system call wrapper in {@link android.os.Process#sendSignal(int, int)}, but that makes a
-	 * "if (pid > 0)" check so cannot be used for sending to a process group:
-	 * https://android.googlesource.com/platform/frameworks/base/+/donut-release/core/jni/android_util_Process.cpp
-	 */
-	public static native void hangupProcessGroup(int processId);
-
-	/** Close a file descriptor through the close(2) system call. */
-	public static native void close(int fileDescriptor);
-
-}
--- a/app/src/main/java/com/termux/terminal/KeyHandler.java
+++ b/app/src/main/java/com/termux/terminal/KeyHandler.java
@@ -1,310 +0,0 @@
-package com.termux.terminal;
-
-import static android.view.KeyEvent.KEYCODE_BREAK;
-import static android.view.KeyEvent.KEYCODE_DEL;
-import static android.view.KeyEvent.KEYCODE_DPAD_CENTER;
-import static android.view.KeyEvent.KEYCODE_DPAD_DOWN;
-import static android.view.KeyEvent.KEYCODE_DPAD_LEFT;
-import static android.view.KeyEvent.KEYCODE_DPAD_RIGHT;
-import static android.view.KeyEvent.KEYCODE_DPAD_UP;
-import static android.view.KeyEvent.KEYCODE_ENTER;
-import static android.view.KeyEvent.KEYCODE_ESCAPE;
-import static android.view.KeyEvent.KEYCODE_F1;
-import static android.view.KeyEvent.KEYCODE_F10;
-import static android.view.KeyEvent.KEYCODE_F11;
-import static android.view.KeyEvent.KEYCODE_F12;
-import static android.view.KeyEvent.KEYCODE_F2;
-import static android.view.KeyEvent.KEYCODE_F3;
-import static android.view.KeyEvent.KEYCODE_F4;
-import static android.view.KeyEvent.KEYCODE_F5;
-import static android.view.KeyEvent.KEYCODE_F6;
-import static android.view.KeyEvent.KEYCODE_F7;
-import static android.view.KeyEvent.KEYCODE_F8;
-import static android.view.KeyEvent.KEYCODE_F9;
-import static android.view.KeyEvent.KEYCODE_FORWARD_DEL;
-import static android.view.KeyEvent.KEYCODE_INSERT;
-import static android.view.KeyEvent.KEYCODE_MOVE_END;
-import static android.view.KeyEvent.KEYCODE_NUMPAD_0;
-import static android.view.KeyEvent.KEYCODE_NUMPAD_1;
-import static android.view.KeyEvent.KEYCODE_NUMPAD_2;
-import static android.view.KeyEvent.KEYCODE_NUMPAD_3;
-import static android.view.KeyEvent.KEYCODE_NUMPAD_4;
-import static android.view.KeyEvent.KEYCODE_NUMPAD_5;
-import static android.view.KeyEvent.KEYCODE_NUMPAD_6;
-import static android.view.KeyEvent.KEYCODE_NUMPAD_7;
-import static android.view.KeyEvent.KEYCODE_NUMPAD_8;
-import static android.view.KeyEvent.KEYCODE_NUMPAD_9;
-import static android.view.KeyEvent.KEYCODE_NUMPAD_ADD;
-import static android.view.KeyEvent.KEYCODE_NUMPAD_COMMA;
-import static android.view.KeyEvent.KEYCODE_NUMPAD_DIVIDE;
-import static android.view.KeyEvent.KEYCODE_NUMPAD_DOT;
-import static android.view.KeyEvent.KEYCODE_NUMPAD_ENTER;
-import static android.view.KeyEvent.KEYCODE_NUMPAD_EQUALS;
-import static android.view.KeyEvent.KEYCODE_NUMPAD_MULTIPLY;
-import static android.view.KeyEvent.KEYCODE_NUMPAD_SUBTRACT;
-import static android.view.KeyEvent.KEYCODE_NUM_LOCK;
-import static android.view.KeyEvent.KEYCODE_PAGE_DOWN;
-import static android.view.KeyEvent.KEYCODE_PAGE_UP;
-import static android.view.KeyEvent.KEYCODE_SYSRQ;
-import static android.view.KeyEvent.KEYCODE_TAB;
-import static android.view.KeyEvent.KEYCODE_HOME;
-
-import java.util.HashMap;
-import java.util.Map;
-
-import android.view.KeyEvent;
-
-public final class KeyHandler {
-
-	public static final int KEYMOD_ALT = 0x80000000;
-	public static final int KEYMOD_CTRL = 0x40000000;
-	public static final int KEYMOD_SHIFT = 0x20000000;
-
-	private static final Map<String, Integer> TERMCAP_TO_KEYCODE = new HashMap<>();
-	static {
-		// terminfo: http://pubs.opengroup.org/onlinepubs/7990989799/xcurses/terminfo.html
-		// termcap: http://man7.org/linux/man-pages/man5/termcap.5.html
-		TERMCAP_TO_KEYCODE.put("%i", KEYMOD_SHIFT | KEYCODE_DPAD_RIGHT);
-		TERMCAP_TO_KEYCODE.put("#2", KEYMOD_SHIFT | KEYCODE_HOME); // Shifted home
-		TERMCAP_TO_KEYCODE.put("#4", KEYMOD_SHIFT | KEYCODE_DPAD_LEFT);
-		TERMCAP_TO_KEYCODE.put("*7", KEYMOD_SHIFT | KEYCODE_MOVE_END); // Shifted end key
-
-		TERMCAP_TO_KEYCODE.put("k1", KEYCODE_F1);
-		TERMCAP_TO_KEYCODE.put("k2", KEYCODE_F2);
-		TERMCAP_TO_KEYCODE.put("k3", KEYCODE_F3);
-		TERMCAP_TO_KEYCODE.put("k4", KEYCODE_F4);
-		TERMCAP_TO_KEYCODE.put("k5", KEYCODE_F5);
-		TERMCAP_TO_KEYCODE.put("k6", KEYCODE_F6);
-		TERMCAP_TO_KEYCODE.put("k7", KEYCODE_F7);
-		TERMCAP_TO_KEYCODE.put("k8", KEYCODE_F8);
-		TERMCAP_TO_KEYCODE.put("k9", KEYCODE_F9);
-		TERMCAP_TO_KEYCODE.put("k;", KEYCODE_F10);
-		TERMCAP_TO_KEYCODE.put("F1", KEYCODE_F11);
-		TERMCAP_TO_KEYCODE.put("F2", KEYCODE_F12);
-		TERMCAP_TO_KEYCODE.put("F3", KEYMOD_SHIFT | KEYCODE_F1);
-		TERMCAP_TO_KEYCODE.put("F4", KEYMOD_SHIFT | KEYCODE_F2);
-		TERMCAP_TO_KEYCODE.put("F5", KEYMOD_SHIFT | KEYCODE_F3);
-		TERMCAP_TO_KEYCODE.put("F6", KEYMOD_SHIFT | KEYCODE_F4);
-		TERMCAP_TO_KEYCODE.put("F7", KEYMOD_SHIFT | KEYCODE_F5);
-		TERMCAP_TO_KEYCODE.put("F8", KEYMOD_SHIFT | KEYCODE_F6);
-		TERMCAP_TO_KEYCODE.put("F9", KEYMOD_SHIFT | KEYCODE_F7);
-		TERMCAP_TO_KEYCODE.put("FA", KEYMOD_SHIFT | KEYCODE_F8);
-		TERMCAP_TO_KEYCODE.put("FB", KEYMOD_SHIFT | KEYCODE_F9);
-		TERMCAP_TO_KEYCODE.put("FC", KEYMOD_SHIFT | KEYCODE_F10);
-		TERMCAP_TO_KEYCODE.put("FD", KEYMOD_SHIFT | KEYCODE_F11);
-		TERMCAP_TO_KEYCODE.put("FE", KEYMOD_SHIFT | KEYCODE_F12);
-
-		TERMCAP_TO_KEYCODE.put("kb", KEYCODE_DEL); // backspace key
-
-		TERMCAP_TO_KEYCODE.put("kd", KEYCODE_DPAD_DOWN); // terminfo=kcud1, down-arrow key
-		TERMCAP_TO_KEYCODE.put("kh", KeyEvent.KEYCODE_HOME);
-		TERMCAP_TO_KEYCODE.put("kl", KEYCODE_DPAD_LEFT);
-		TERMCAP_TO_KEYCODE.put("kr", KEYCODE_DPAD_RIGHT);
-
-		// K1=Upper left of keypad:
-		// t_K1 <kHome> keypad home key
-		// t_K3 <kPageUp> keypad page-up key
-		// t_K4 <kEnd> keypad end key
-		// t_K5 <kPageDown> keypad page-down key
-		TERMCAP_TO_KEYCODE.put("K1", KeyEvent.KEYCODE_HOME);
-		TERMCAP_TO_KEYCODE.put("K3", KeyEvent.KEYCODE_PAGE_UP);
-		TERMCAP_TO_KEYCODE.put("K4", KeyEvent.KEYCODE_MOVE_END);
-		TERMCAP_TO_KEYCODE.put("K5", KeyEvent.KEYCODE_PAGE_DOWN);
-
-		TERMCAP_TO_KEYCODE.put("ku", KEYCODE_DPAD_UP);
-
-		TERMCAP_TO_KEYCODE.put("kB", KEYMOD_SHIFT | KEYCODE_TAB); // termcap=kB, terminfo=kcbt: Back-tab
-		TERMCAP_TO_KEYCODE.put("kD", KEYCODE_FORWARD_DEL); // terminfo=kdch1, delete-character key
-		TERMCAP_TO_KEYCODE.put("kDN", KEYMOD_SHIFT | KEYCODE_DPAD_DOWN); // non-standard shifted arrow down
-		TERMCAP_TO_KEYCODE.put("kF", KEYMOD_SHIFT | KEYCODE_DPAD_DOWN); // terminfo=kind, scroll-forward key
-		TERMCAP_TO_KEYCODE.put("kI", KEYCODE_INSERT);
-		TERMCAP_TO_KEYCODE.put("kN", KEYCODE_PAGE_UP);
-		TERMCAP_TO_KEYCODE.put("kP", KEYCODE_PAGE_DOWN);
-		TERMCAP_TO_KEYCODE.put("kR", KEYMOD_SHIFT | KEYCODE_DPAD_UP); // terminfo=kri, scroll-backward key
-		TERMCAP_TO_KEYCODE.put("kUP", KEYMOD_SHIFT | KEYCODE_DPAD_UP); // non-standard shifted up
-
-		TERMCAP_TO_KEYCODE.put("@7", KEYCODE_MOVE_END);
-		TERMCAP_TO_KEYCODE.put("@8", KEYCODE_NUMPAD_ENTER);
-	}
-
-	static String getCodeFromTermcap(String termcap, boolean cursorKeysApplication, boolean keypadApplication) {
-		Integer keyCodeAndMod = TERMCAP_TO_KEYCODE.get(termcap);
-		if (keyCodeAndMod == null) return null;
-		int keyCode = keyCodeAndMod;
-		int keyMod = 0;
-		if ((keyCode & KEYMOD_SHIFT) != 0) {
-			keyMod |= KEYMOD_SHIFT;
-			keyCode &= ~KEYMOD_SHIFT;
-		}
-		if ((keyCode & KEYMOD_CTRL) != 0) {
-			keyMod |= KEYMOD_CTRL;
-			keyCode &= ~KEYMOD_CTRL;
-		}
-		if ((keyCode & KEYMOD_ALT) != 0) {
-			keyMod |= KEYMOD_ALT;
-			keyCode &= ~KEYMOD_ALT;
-		}
-		return getCode(keyCode, keyMod, cursorKeysApplication, keypadApplication);
-	}
-
-	public static String getCode(int keyCode, int keyMode, boolean cursorApp, boolean keypadApplication) {
-		switch (keyCode) {
-		case KEYCODE_DPAD_CENTER:
-			return "\015";
-
-		case KEYCODE_DPAD_UP:
-			return (keyMode == 0) ? (cursorApp ? "\033OA" : "\033[A") : transformForModifiers("\033[1", keyMode, 'A');
-		case KEYCODE_DPAD_DOWN:
-			return (keyMode == 0) ? (cursorApp ? "\033OB" : "\033[B") : transformForModifiers("\033[1", keyMode, 'B');
-		case KEYCODE_DPAD_RIGHT:
-			return (keyMode == 0) ? (cursorApp ? "\033OC" : "\033[C") : transformForModifiers("\033[1", keyMode, 'C');
-		case KEYCODE_DPAD_LEFT:
-			return (keyMode == 0) ? (cursorApp ? "\033OD" : "\033[D") : transformForModifiers("\033[1", keyMode, 'D');
-
-		case KeyEvent.KEYCODE_HOME:
-			return (keyMode == 0) ? (cursorApp ? "\033OH" : "\033[H") : transformForModifiers("\033[1", keyMode, 'H');
-		case KEYCODE_MOVE_END:
-			return (keyMode == 0) ? (cursorApp ? "\033OF" : "\033[F") : transformForModifiers("\033[1", keyMode, 'F');
-
-			// An xterm can send function keys F1 to F4 in two modes: vt100 compatible or
-			// not. Because Vim may not know what the xterm is sending, both types of keys
-			// are recognized. The same happens for the <Home> and <End> keys.
-			// normal vt100 ~
-			// <F1> t_k1 <Esc>[11~ <xF1> <Esc>OP *<xF1>-xterm*
-			// <F2> t_k2 <Esc>[12~ <xF2> <Esc>OQ *<xF2>-xterm*
-			// <F3> t_k3 <Esc>[13~ <xF3> <Esc>OR *<xF3>-xterm*
-			// <F4> t_k4 <Esc>[14~ <xF4> <Esc>OS *<xF4>-xterm*
-			// <Home> t_kh <Esc>[7~ <xHome> <Esc>OH *<xHome>-xterm*
-			// <End> t_@7 <Esc>[4~ <xEnd> <Esc>OF *<xEnd>-xterm*
-		case KEYCODE_F1:
-			return (keyMode == 0) ? "\033OP" : transformForModifiers("\033[1", keyMode, 'P');
-		case KEYCODE_F2:
-			return (keyMode == 0) ? "\033OQ" : transformForModifiers("\033[1", keyMode, 'Q');
-		case KEYCODE_F3:
-			return (keyMode == 0) ? "\033OR" : transformForModifiers("\033[1", keyMode, 'R');
-		case KEYCODE_F4:
-			return (keyMode == 0) ? "\033OS" : transformForModifiers("\033[1", keyMode, 'S');
-		case KEYCODE_F5:
-			return transformForModifiers("\033[15", keyMode, '~');
-		case KEYCODE_F6:
-			return transformForModifiers("\033[17", keyMode, '~');
-		case KEYCODE_F7:
-			return transformForModifiers("\033[18", keyMode, '~');
-		case KEYCODE_F8:
-			return transformForModifiers("\033[19", keyMode, '~');
-		case KEYCODE_F9:
-			return transformForModifiers("\033[20", keyMode, '~');
-		case KEYCODE_F10:
-			return transformForModifiers("\033[21", keyMode, '~');
-		case KEYCODE_F11:
-			return transformForModifiers("\033[23", keyMode, '~');
-		case KEYCODE_F12:
-			return transformForModifiers("\033[24", keyMode, '~');
-
-		case KEYCODE_SYSRQ:
-			return "\033[32~"; // Sys Request / Print
-			// Is this Scroll lock? case Cancel: return "\033[33~";
-		case KEYCODE_BREAK:
-			return "\033[34~"; // Pause/Break
-
-		case KEYCODE_ESCAPE:
-		case KeyEvent.KEYCODE_BACK:
-			return "\033";
-
-		case KEYCODE_INSERT:
-			return transformForModifiers("\033[2", keyMode, '~');
-		case KEYCODE_FORWARD_DEL:
-			return transformForModifiers("\033[3", keyMode, '~');
-
-		case KEYCODE_NUMPAD_DOT:
-			return keypadApplication ? "\033On" : "\033[3~";
-
-		case KEYCODE_PAGE_UP:
-			return "\033[5~";
-		case KEYCODE_PAGE_DOWN:
-			return "\033[6~";
-		case KEYCODE_DEL:
-			// Yes, this needs to U+007F and not U+0008!
-			return "\u007F";
-		case KEYCODE_NUM_LOCK:
-			return "\033OP";
-
-		case KeyEvent.KEYCODE_SPACE:
-			// If ctrl is not down, return null so that it goes through normal input processing (which may e.g. cause a
-			// combining accent to be written):
-			return ((keyMode & KEYMOD_CTRL) == 0) ? null : "\0";
-		case KEYCODE_TAB:
-			// This is back-tab when shifted:
-			return (keyMode & KEYMOD_SHIFT) == 0 ? "\011" : "\033[Z";
-		case KEYCODE_ENTER:
-			return ((keyMode & KEYMOD_ALT) == 0) ? "\r" : "\033\r";
-
-		case KEYCODE_NUMPAD_ENTER:
-			return keypadApplication ? transformForModifiers("\033O", keyMode, 'M') : "\n";
-		case KEYCODE_NUMPAD_MULTIPLY:
-			return keypadApplication ? transformForModifiers("\033O", keyMode, 'j') : "*";
-		case KEYCODE_NUMPAD_ADD:
-			return keypadApplication ? transformForModifiers("\033O", keyMode, 'k') : "+";
-		case KEYCODE_NUMPAD_COMMA:
-			return ",";
-		case KEYCODE_NUMPAD_SUBTRACT:
-			return keypadApplication ? transformForModifiers("\033O", keyMode, 'm') : "-";
-		case KEYCODE_NUMPAD_DIVIDE:
-			return keypadApplication ? transformForModifiers("\033O", keyMode, 'o') : "/";
-		case KEYCODE_NUMPAD_0:
-			return keypadApplication ? transformForModifiers("\033O", keyMode, 'p') : "1";
-		case KEYCODE_NUMPAD_1:
-			return keypadApplication ? transformForModifiers("\033O", keyMode, 'q') : "1";
-		case KEYCODE_NUMPAD_2:
-			return keypadApplication ? transformForModifiers("\033O", keyMode, 'r') : "2";
-		case KEYCODE_NUMPAD_3:
-			return keypadApplication ? transformForModifiers("\033O", keyMode, 's') : "3";
-		case KEYCODE_NUMPAD_4:
-			return keypadApplication ? transformForModifiers("\033O", keyMode, 't') : "4";
-		case KEYCODE_NUMPAD_5:
-			return keypadApplication ? transformForModifiers("\033O", keyMode, 'u') : "5";
-		case KEYCODE_NUMPAD_6:
-			return keypadApplication ? transformForModifiers("\033O", keyMode, 'v') : "6";
-		case KEYCODE_NUMPAD_7:
-			return keypadApplication ? transformForModifiers("\033O", keyMode, 'w') : "7";
-		case KEYCODE_NUMPAD_8:
-			return keypadApplication ? transformForModifiers("\033O", keyMode, 'x') : "8";
-		case KEYCODE_NUMPAD_9:
-			return keypadApplication ? transformForModifiers("\033O", keyMode, 'y') : "9";
-		case KEYCODE_NUMPAD_EQUALS:
-			return keypadApplication ? transformForModifiers("\033O", keyMode, 'X') : "=";
-		}
-
-		return null;
-	}
-
-	private static String transformForModifiers(String start, int keymod, char lastChar) {
-		int modifier;
-		switch (keymod) {
-		case KEYMOD_SHIFT:
-			modifier = 2;
-			break;
-		case KEYMOD_ALT:
-			modifier = 3;
-			break;
-		case (KEYMOD_SHIFT | KEYMOD_ALT):
-			modifier = 4;
-			break;
-		case KEYMOD_CTRL:
-			modifier = 5;
-			break;
-		case KEYMOD_SHIFT | KEYMOD_CTRL:
-			modifier = 6;
-			break;
-		case KEYMOD_ALT | KEYMOD_CTRL:
-			modifier = 7;
-			break;
-		case KEYMOD_SHIFT | KEYMOD_ALT | KEYMOD_CTRL:
-			modifier = 8;
-			break;
-		default:
-			return start + lastChar;
-		}
-		return start + (";" + modifier) + lastChar;
-	}
-}
--- a/app/src/main/java/com/termux/terminal/TerminalBuffer.java
+++ b/app/src/main/java/com/termux/terminal/TerminalBuffer.java
@@ -1,439 +0,0 @@
-package com.termux.terminal;
-
-/**
- * A circular buffer of {@link TerminalRow}:s which keeps notes about what is visible on a logical screen and the scroll
- * history.
- * 
- * See {@link #externalToInternalRow(int)} for how to map from logical screen rows to array indices.
- */
-public final class TerminalBuffer {
-
-	TerminalRow[] mLines;
-	/** The length of {@link #mLines}. */
-	int mTotalRows;
-	/** The number of rows and columns visible on the screen. */
-	int mScreenRows, mColumns;
-	/** The number of rows kept in history. */
-	private int mActiveTranscriptRows = 0;
-	/** The index in the circular buffer where the visible screen starts. */
-	private int mScreenFirstRow = 0;
-
-	/**
-	 * Create a transcript screen.
-	 * 
-	 * @param columns
-	 *            the width of the screen in characters.
-	 * @param totalRows
-	 *            the height of the entire text area, in rows of text.
-	 * @param screenRows
-	 *            the height of just the screen, not including the transcript that holds lines that have scrolled off
-	 *            the top of the screen.
-	 */
-	public TerminalBuffer(int columns, int totalRows, int screenRows) {
-		mColumns = columns;
-		mTotalRows = totalRows;
-		mScreenRows = screenRows;
-		mLines = new TerminalRow[totalRows];
-
-		blockSet(0, 0, columns, screenRows, ' ', TextStyle.NORMAL);
-	}
-
-	public String getTranscriptText() {
-		return getSelectedText(0, -getActiveTranscriptRows(), mColumns, mScreenRows).trim();
-	}
-
-	public String getSelectedText(int selX1, int selY1, int selX2, int selY2) {
-		final StringBuilder builder = new StringBuilder();
-		final int columns = mColumns;
-
-		if (selY1 < -getActiveTranscriptRows()) selY1 = -getActiveTranscriptRows();
-		if (selY2 >= mScreenRows) selY2 = mScreenRows - 1;
-
-		for (int row = selY1; row <= selY2; row++) {
-			int x1 = (row == selY1) ? selX1 : 0;
-			int x2;
-			if (row == selY2) {
-				x2 = selX2 + 1;
-				if (x2 > columns) x2 = columns;
-			} else {
-				x2 = columns;
-			}
-			TerminalRow lineObject = mLines[externalToInternalRow(row)];
-			int x1Index = lineObject.findStartOfColumn(x1);
-			int x2Index = (x2 < mColumns) ? lineObject.findStartOfColumn(x2) : lineObject.getSpaceUsed();
-			if (x2Index == x1Index) {
-				// Selected the start of a wide character.
-				x2Index = lineObject.findStartOfColumn(x2+1);
-			}
-			char[] line = lineObject.mText;
-			int lastPrintingCharIndex = -1;
-			int i;
-			boolean rowLineWrap = getLineWrap(row);
-			if (rowLineWrap && x2 == columns) {
-				// If the line was wrapped, we shouldn't lose trailing space:
-				lastPrintingCharIndex = x2Index - 1;
-			} else {
-				for (i = x1Index; i < x2Index; ++i) {
-					char c = line[i];
-					if (c != ' ') lastPrintingCharIndex = i;
-				}
-			}
-			if (lastPrintingCharIndex != -1) builder.append(line, x1Index, lastPrintingCharIndex - x1Index + 1);
-			if (!rowLineWrap && row < selY2 && row < mScreenRows - 1) builder.append('\n');
-		}
-		return builder.toString();
-	}
-
-	public int getActiveTranscriptRows() {
-		return mActiveTranscriptRows;
-	}
-
-	public int getActiveRows() {
-		return mActiveTranscriptRows + mScreenRows;
-	}
-
-	/**
-	 * Convert a row value from the public external coordinate system to our internal private coordinate system.
-	 * 
-	 * <ul>
-	 * <li>External coordinate system: -mActiveTranscriptRows to mScreenRows-1, with the screen being 0..mScreenRows-1.
-	 * <li>Internal coordinate system: the mScreenRows lines starting at mScreenFirstRow comprise the screen, while the
-	 * mActiveTranscriptRows lines ending at mScreenFirstRow-1 form the transcript (as a circular buffer).
-	 * </ul>
-	 *
-	 * External <---> Internal:
-	 * 
-	 * <pre>
-	 * [ ...                            ]           [ ...                                     ]
-	 * [ -mActiveTranscriptRows         ]           [ mScreenFirstRow - mActiveTranscriptRows ]
-	 * [ ...                            ]           [ ...                                     ]
-	 * [ 0 (visible screen starts here) ]  <----->  [ mScreenFirstRow                         ]
-	 * [ ...                            ]           [ ...                                     ]
-	 * [ mScreenRows-1                  ]           [ mScreenFirstRow + mScreenRows-1         ]
-	 * </pre>
-	 * 
-	 * @param externalRow
-	 *            a row in the external coordinate system.
-	 * @return The row corresponding to the input argument in the private coordinate system.
-	 */
-	public int externalToInternalRow(int externalRow) {
-		if (externalRow < -mActiveTranscriptRows || externalRow > mScreenRows)
-			throw new IllegalArgumentException("extRow=" + externalRow + ", mScreenRows=" + mScreenRows + ", mActiveTranscriptRows=" + mActiveTranscriptRows);
-		final int internalRow = mScreenFirstRow + externalRow;
-		return (internalRow < 0) ? (mTotalRows + internalRow) : (internalRow % mTotalRows);
-	}
-
-	public void setLineWrap(int row) {
-		mLines[externalToInternalRow(row)].mLineWrap = true;
-	}
-
-	private boolean getLineWrap(int row) {
-		return mLines[externalToInternalRow(row)].mLineWrap;
-	}
-
-	/**
-	 * Resize the screen which this transcript backs. Currently, this only works if the number of columns does not
-	 * change or the rows expand (that is, it only works when shrinking the number of rows).
-	 * 
-	 * @param newColumns
-	 *            The number of columns the screen should have.
-	 * @param newRows
-	 *            The number of rows the screen should have.
-	 * @param cursor
-	 *            An int[2] containing the (column, row) cursor location.
-	 */
-	public void resize(int newColumns, int newRows, int newTotalRows, int[] cursor, int currentStyle, boolean altScreen) {
-		// newRows > mTotalRows should not normally happen since mTotalRows is TRANSCRIPT_ROWS (10000):
-		if (newColumns == mColumns && newRows <= mTotalRows) {
-			// Fast resize where just the rows changed.
-			int shiftDownOfTopRow = mScreenRows - newRows;
-			if (shiftDownOfTopRow > 0 && shiftDownOfTopRow < mScreenRows) {
-				// Shrinking. Check if we can skip blank rows at bottom below cursor.
-				for (int i = mScreenRows - 1; i > 0; i--) {
-					if (cursor[1] >= i) break;
-					int r = externalToInternalRow(i);
-					if (mLines[r] == null || mLines[r].isBlank()) {
-						if (--shiftDownOfTopRow == 0) break;
-					}
-				}
-			} else if (shiftDownOfTopRow < 0) {
-				// Negative shift down = expanding. Only move screen up if there is transcript to show:
-				int actualShift = Math.max(shiftDownOfTopRow, -mActiveTranscriptRows);
-				if (shiftDownOfTopRow != actualShift) {
-					// The new lines revealed by the resizing are not all from the transcript. Blank the below ones.
-					for (int i = 0; i < actualShift - shiftDownOfTopRow; i++)
-						allocateFullLineIfNecessary((mScreenFirstRow + mScreenRows + i) % mTotalRows).clear(currentStyle);
-					shiftDownOfTopRow = actualShift;
-				}
-			}
-			mScreenFirstRow += shiftDownOfTopRow;
-			mScreenFirstRow = (mScreenFirstRow < 0) ? (mScreenFirstRow + mTotalRows) : (mScreenFirstRow % mTotalRows);
-			mTotalRows = newTotalRows;
-			mActiveTranscriptRows = altScreen ? 0 : Math.max(0, mActiveTranscriptRows + shiftDownOfTopRow);
-			cursor[1] -= shiftDownOfTopRow;
-			mScreenRows = newRows;
-		} else {
-			// Copy away old state and update new:
-			TerminalRow[] oldLines = mLines;
-			mLines = new TerminalRow[newTotalRows];
-			for (int i = 0; i < newTotalRows; i++)
-				mLines[i] = new TerminalRow(newColumns, currentStyle);
-
-			final int oldActiveTranscriptRows = mActiveTranscriptRows;
-			final int oldScreenFirstRow = mScreenFirstRow;
-			final int oldScreenRows = mScreenRows;
-			final int oldTotalRows = mTotalRows;
-			mTotalRows = newTotalRows;
-			mScreenRows = newRows;
-			mActiveTranscriptRows = mScreenFirstRow = 0;
-			mColumns = newColumns;
-
-			int newCursorRow = -1;
-			int newCursorColumn = -1;
-			int oldCursorRow = cursor[1];
-			int oldCursorColumn = cursor[0];
-			boolean newCursorPlaced = false;
-
-			int currentOutputExternalRow = 0;
-			int currentOutputExternalColumn = 0;
-
-			// Loop over every character in the initial state.
-			// Blank lines should be skipped only if at end of transcript (just as is done in the "fast" resize), so we
-			// keep track how many blank lines we have skipped if we later on find a non-blank line.
-			int skippedBlankLines = 0;
-			for (int externalOldRow = -oldActiveTranscriptRows; externalOldRow < oldScreenRows; externalOldRow++) {
-				// Do what externalToInternalRow() does but for the old state:
-				int internalOldRow = oldScreenFirstRow + externalOldRow;
-				internalOldRow = (internalOldRow < 0) ? (oldTotalRows + internalOldRow) : (internalOldRow % oldTotalRows);
-
-				TerminalRow oldLine = oldLines[internalOldRow];
-				boolean cursorAtThisRow = externalOldRow == oldCursorRow;
-				// The cursor may only be on a non-null line, which we should not skip:
-				if (oldLine == null || (!(!newCursorPlaced && cursorAtThisRow)) && oldLine.isBlank()) {
-					skippedBlankLines++;
-					continue;
-				} else if (skippedBlankLines > 0) {
-					// After skipping some blank lines we encounter a non-blank line. Insert the skipped blank lines.
-					for (int i = 0; i < skippedBlankLines; i++) {
-						if (currentOutputExternalRow == mScreenRows - 1) {
-							scrollDownOneLine(0, mScreenRows, currentStyle);
-						} else {
-							currentOutputExternalRow++;
-						}
-						currentOutputExternalColumn = 0;
-					}
-					skippedBlankLines = 0;
-				}
-
-				int lastNonSpaceIndex = 0;
-				boolean justToCursor = false;
-				if (cursorAtThisRow || oldLine.mLineWrap) {
-					// Take the whole line, either because of cursor on it, or if line wrapping.
-					lastNonSpaceIndex = oldLine.getSpaceUsed();
-					if (cursorAtThisRow) justToCursor = true;
-				} else {
-					for (int i = 0; i < oldLine.getSpaceUsed(); i++)
-						// NEWLY INTRODUCED BUG! Should not index oldLine.mStyle with char indices
-						if (oldLine.mText[i] != ' '/* || oldLine.mStyle[i] != currentStyle */) lastNonSpaceIndex = i + 1;
-				}
-
-				int currentOldCol = 0;
-				int styleAtCol = 0;
-				for (int i = 0; i < lastNonSpaceIndex; i++) {
-					// Note that looping over java character, not cells.
-					char c = oldLine.mText[i];
-					int codePoint = (Character.isHighSurrogate(c)) ? Character.toCodePoint(c, oldLine.mText[++i]) : c;
-					int displayWidth = WcWidth.width(codePoint);
-					// Use the last style if this is a zero-width character:
-					if (displayWidth > 0) styleAtCol = oldLine.getStyle(currentOldCol);
-
-					// Line wrap as necessary:
-					if (currentOutputExternalColumn + displayWidth > mColumns) {
-						setLineWrap(currentOutputExternalRow);
-						if (currentOutputExternalRow == mScreenRows - 1) {
-							if (newCursorPlaced) newCursorRow--;
-							scrollDownOneLine(0, mScreenRows, currentStyle);
-						} else {
-							currentOutputExternalRow++;
-						}
-						currentOutputExternalColumn = 0;
-					}
-
-					int offsetDueToCombiningChar = ((displayWidth <= 0 && currentOutputExternalColumn > 0) ? 1 : 0);
-					int outputColumn = currentOutputExternalColumn - offsetDueToCombiningChar;
-					setChar(outputColumn, currentOutputExternalRow, codePoint, styleAtCol);
-
-					if (displayWidth > 0) {
-						if (oldCursorRow == externalOldRow && oldCursorColumn == currentOldCol) {
-							newCursorColumn = currentOutputExternalColumn;
-							newCursorRow = currentOutputExternalRow;
-							newCursorPlaced = true;
-						}
-						currentOldCol += displayWidth;
-						currentOutputExternalColumn += displayWidth;
-						if (justToCursor && newCursorPlaced) break;
-					}
-				}
-				// Old row has been copied. Check if we need to insert newline if old line was not wrapping:
-				if (externalOldRow != (oldScreenRows - 1) && !oldLine.mLineWrap) {
-					if (currentOutputExternalRow == mScreenRows - 1) {
-						if (newCursorPlaced) newCursorRow--;
-						scrollDownOneLine(0, mScreenRows, currentStyle);
-					} else {
-						currentOutputExternalRow++;
-					}
-					currentOutputExternalColumn = 0;
-				}
-			}
-
-			cursor[0] = newCursorColumn;
-			cursor[1] = newCursorRow;
-		}
-
-		// Handle cursor scrolling off screen:
-		if (cursor[0] < 0 || cursor[1] < 0) cursor[0] = cursor[1] = 0;
-	}
-
-	/**
-	 * Block copy lines and associated metadata from one location to another in the circular buffer, taking wraparound
-	 * into account.
-	 * 
-	 * @param srcInternal
-	 *            The first line to be copied.
-	 * @param len
-	 *            The number of lines to be copied.
-	 */
-	private void blockCopyLinesDown(int srcInternal, int len) {
-		if (len == 0) return;
-		int totalRows = mTotalRows;
-
-		int start = len - 1;
-		// Save away line to be overwritten:
-		TerminalRow lineToBeOverWritten = mLines[(srcInternal + start + 1) % totalRows];
-		// Do the copy from bottom to top.
-		for (int i = start; i >= 0; --i)
-			mLines[(srcInternal + i + 1) % totalRows] = mLines[(srcInternal + i) % totalRows];
-		// Put back overwritten line, now above the block:
-		mLines[(srcInternal) % totalRows] = lineToBeOverWritten;
-	}
-
-	/**
-	 * Scroll the screen down one line. To scroll the whole screen of a 24 line screen, the arguments would be (0, 24).
-	 * 
-	 * @param topMargin
-	 *            First line that is scrolled.
-	 * @param bottomMargin
-	 *            One line after the last line that is scrolled.
-	 * @param style
-	 *            the style for the newly exposed line.
-	 */
-	public void scrollDownOneLine(int topMargin, int bottomMargin, int style) {
-		if (topMargin > bottomMargin - 1 || topMargin < 0 || bottomMargin > mScreenRows)
-			throw new IllegalArgumentException("topMargin=" + topMargin + ", bottomMargin=" + bottomMargin + ", mScreenRows=" + mScreenRows);
-
-		// Copy the fixed topMargin lines one line down so that they remain on screen in same position:
-		blockCopyLinesDown(mScreenFirstRow, topMargin);
-		// Copy the fixed mScreenRows-bottomMargin lines one line down so that they remain on screen in same
-		// position:
-		blockCopyLinesDown(externalToInternalRow(bottomMargin), mScreenRows - bottomMargin);
-
-		// Update the screen location in the ring buffer:
-		mScreenFirstRow = (mScreenFirstRow + 1) % mTotalRows;
-		// Note that the history has grown if not already full:
-		if (mActiveTranscriptRows < mTotalRows - mScreenRows) mActiveTranscriptRows++;
-
-		// Blank the newly revealed line above the bottom margin:
-		int blankRow = externalToInternalRow(bottomMargin - 1);
-		if (mLines[blankRow] == null) {
-			mLines[blankRow] = new TerminalRow(mColumns, style);
-		} else {
-			mLines[blankRow].clear(style);
-		}
-	}
-
-	/**
-	 * Block copy characters from one position in the screen to another. The two positions can overlap. All characters
-	 * of the source and destination must be within the bounds of the screen, or else an InvalidParameterException will
-	 * be thrown.
-	 * 
-	 * @param sx
-	 *            source X coordinate
-	 * @param sy
-	 *            source Y coordinate
-	 * @param w
-	 *            width
-	 * @param h
-	 *            height
-	 * @param dx
-	 *            destination X coordinate
-	 * @param dy
-	 *            destination Y coordinate
-	 */
-	public void blockCopy(int sx, int sy, int w, int h, int dx, int dy) {
-		if (w == 0) return;
-		if (sx < 0 || sx + w > mColumns || sy < 0 || sy + h > mScreenRows || dx < 0 || dx + w > mColumns || dy < 0 || dy + h > mScreenRows)
-			throw new IllegalArgumentException();
-		boolean copyingUp = sy > dy;
-		for (int y = 0; y < h; y++) {
-			int y2 = copyingUp ? y : (h - (y + 1));
-			TerminalRow sourceRow = allocateFullLineIfNecessary(externalToInternalRow(sy + y2));
-			allocateFullLineIfNecessary(externalToInternalRow(dy + y2)).copyInterval(sourceRow, sx, sx + w, dx);
-		}
-	}
-
-	/**
-	 * Block set characters. All characters must be within the bounds of the screen, or else and
-	 * InvalidParemeterException will be thrown. Typically this is called with a "val" argument of 32 to clear a block
-	 * of characters.
-	 */
-	public void blockSet(int sx, int sy, int w, int h, int val, int style) {
-		if (sx < 0 || sx + w > mColumns || sy < 0 || sy + h > mScreenRows) {
-			throw new IllegalArgumentException(
-					"Illegal arguments! blockSet(" + sx + ", " + sy + ", " + w + ", " + h + ", " + val + ", " + mColumns + ", " + mScreenRows + ")");
-		}
-		for (int y = 0; y < h; y++)
-			for (int x = 0; x < w; x++)
-				setChar(sx + x, sy + y, val, style);
-	}
-
-	public TerminalRow allocateFullLineIfNecessary(int row) {
-		return (mLines[row] == null) ? (mLines[row] = new TerminalRow(mColumns, 0)) : mLines[row];
-	}
-
-	public void setChar(int column, int row, int codePoint, int style) {
-		if (row >= mScreenRows || column >= mColumns)
-			throw new IllegalArgumentException("row=" + row + ", column=" + column + ", mScreenRows=" + mScreenRows + ", mColumns=" + mColumns);
-		row = externalToInternalRow(row);
-		allocateFullLineIfNecessary(row).setChar(column, codePoint, style);
-	}
-
-	public int getStyleAt(int externalRow, int column) {
-		return allocateFullLineIfNecessary(externalToInternalRow(externalRow)).getStyle(column);
-	}
-
-	/** Support for http://vt100.net/docs/vt510-rm/DECCARA and http://vt100.net/docs/vt510-rm/DECCARA */
-	public void setOrClearEffect(int bits, boolean setOrClear, boolean reverse, boolean rectangular, int leftMargin, int rightMargin, int top, int left,
-			int bottom, int right) {
-		for (int y = top; y < bottom; y++) {
-			TerminalRow line = mLines[externalToInternalRow(y)];
-			int startOfLine = (rectangular || y == top) ? left : leftMargin;
-			int endOfLine = (rectangular || y + 1 == bottom) ? right : rightMargin;
-			for (int x = startOfLine; x < endOfLine; x++) {
-				int currentStyle = line.getStyle(x);
-				int foreColor = TextStyle.decodeForeColor(currentStyle);
-				int backColor = TextStyle.decodeBackColor(currentStyle);
-				int effect = TextStyle.decodeEffect(currentStyle);
-				if (reverse) {
-					// Clear out the bits to reverse and add them back in reversed:
-					effect = (effect & ~bits) | (bits & ~effect);
-				} else if (setOrClear) {
-					effect |= bits;
-				} else {
-					effect &= ~bits;
-				}
-				line.mStyle[x] = TextStyle.encode(foreColor, backColor, effect);
-			}
-		}
-	}
-
-}
--- a/app/src/main/java/com/termux/terminal/TerminalColorScheme.java
+++ b/app/src/main/java/com/termux/terminal/TerminalColorScheme.java
@@ -1,102 +0,0 @@
-package com.termux.terminal;
-
-import java.util.Map;
-import java.util.Properties;
-
-/**
- * Color scheme for a terminal with default colors, which may be overridden (and then reset) from the shell using
- * Operating System Control (OSC) sequences.
- * 
- * @see TerminalColors
- */
-public final class TerminalColorScheme {
-
-	/** http://upload.wikimedia.org/wikipedia/en/1/15/Xterm_256color_chart.svg, but with blue color brighter. */
-	private static final int[] DEFAULT_COLORSCHEME = {
-			// 16 original colors. First 8 are dim.
-			0xff000000, // black
-			0xffcd0000, // dim red
-			0xff00cd00, // dim green
-			0xffcdcd00, // dim yellow
-			0xff6495ed, // dim blue
-			0xffcd00cd, // dim magenta
-			0xff00cdcd, // dim cyan
-			0xffe5e5e5, // dim white
-			// Second 8 are bright:
-			0xff7f7f7f, // medium grey
-			0xffff0000, // bright red
-			0xff00ff00, // bright green
-			0xffffff00, // bright yellow
-			0xff5c5cff, // light blue
-			0xffff00ff, // bright magenta
-			0xff00ffff, // bright cyan
-			0xffffffff, // bright white
-
-			// 216 color cube, six shades of each color:
-			0xff000000, 0xff00005f, 0xff000087, 0xff0000af, 0xff0000d7, 0xff0000ff, 0xff005f00, 0xff005f5f, 0xff005f87, 0xff005faf, 0xff005fd7, 0xff005fff,
-			0xff008700, 0xff00875f, 0xff008787, 0xff0087af, 0xff0087d7, 0xff0087ff, 0xff00af00, 0xff00af5f, 0xff00af87, 0xff00afaf, 0xff00afd7, 0xff00afff,
-			0xff00d700, 0xff00d75f, 0xff00d787, 0xff00d7af, 0xff00d7d7, 0xff00d7ff, 0xff00ff00, 0xff00ff5f, 0xff00ff87, 0xff00ffaf, 0xff00ffd7, 0xff00ffff,
-			0xff5f0000, 0xff5f005f, 0xff5f0087, 0xff5f00af, 0xff5f00d7, 0xff5f00ff, 0xff5f5f00, 0xff5f5f5f, 0xff5f5f87, 0xff5f5faf, 0xff5f5fd7, 0xff5f5fff,
-			0xff5f8700, 0xff5f875f, 0xff5f8787, 0xff5f87af, 0xff5f87d7, 0xff5f87ff, 0xff5faf00, 0xff5faf5f, 0xff5faf87, 0xff5fafaf, 0xff5fafd7, 0xff5fafff,
-			0xff5fd700, 0xff5fd75f, 0xff5fd787, 0xff5fd7af, 0xff5fd7d7, 0xff5fd7ff, 0xff5fff00, 0xff5fff5f, 0xff5fff87, 0xff5fffaf, 0xff5fffd7, 0xff5fffff,
-			0xff870000, 0xff87005f, 0xff870087, 0xff8700af, 0xff8700d7, 0xff8700ff, 0xff875f00, 0xff875f5f, 0xff875f87, 0xff875faf, 0xff875fd7, 0xff875fff,
-			0xff878700, 0xff87875f, 0xff878787, 0xff8787af, 0xff8787d7, 0xff8787ff, 0xff87af00, 0xff87af5f, 0xff87af87, 0xff87afaf, 0xff87afd7, 0xff87afff,
-			0xff87d700, 0xff87d75f, 0xff87d787, 0xff87d7af, 0xff87d7d7, 0xff87d7ff, 0xff87ff00, 0xff87ff5f, 0xff87ff87, 0xff87ffaf, 0xff87ffd7, 0xff87ffff,
-			0xffaf0000, 0xffaf005f, 0xffaf0087, 0xffaf00af, 0xffaf00d7, 0xffaf00ff, 0xffaf5f00, 0xffaf5f5f, 0xffaf5f87, 0xffaf5faf, 0xffaf5fd7, 0xffaf5fff,
-			0xffaf8700, 0xffaf875f, 0xffaf8787, 0xffaf87af, 0xffaf87d7, 0xffaf87ff, 0xffafaf00, 0xffafaf5f, 0xffafaf87, 0xffafafaf, 0xffafafd7, 0xffafafff,
-			0xffafd700, 0xffafd75f, 0xffafd787, 0xffafd7af, 0xffafd7d7, 0xffafd7ff, 0xffafff00, 0xffafff5f, 0xffafff87, 0xffafffaf, 0xffafffd7, 0xffafffff,
-			0xffd70000, 0xffd7005f, 0xffd70087, 0xffd700af, 0xffd700d7, 0xffd700ff, 0xffd75f00, 0xffd75f5f, 0xffd75f87, 0xffd75faf, 0xffd75fd7, 0xffd75fff,
-			0xffd78700, 0xffd7875f, 0xffd78787, 0xffd787af, 0xffd787d7, 0xffd787ff, 0xffd7af00, 0xffd7af5f, 0xffd7af87, 0xffd7afaf, 0xffd7afd7, 0xffd7afff,
-			0xffd7d700, 0xffd7d75f, 0xffd7d787, 0xffd7d7af, 0xffd7d7d7, 0xffd7d7ff, 0xffd7ff00, 0xffd7ff5f, 0xffd7ff87, 0xffd7ffaf, 0xffd7ffd7, 0xffd7ffff,
-			0xffff0000, 0xffff005f, 0xffff0087, 0xffff00af, 0xffff00d7, 0xffff00ff, 0xffff5f00, 0xffff5f5f, 0xffff5f87, 0xffff5faf, 0xffff5fd7, 0xffff5fff,
-			0xffff8700, 0xffff875f, 0xffff8787, 0xffff87af, 0xffff87d7, 0xffff87ff, 0xffffaf00, 0xffffaf5f, 0xffffaf87, 0xffffafaf, 0xffffafd7, 0xffffafff,
-			0xffffd700, 0xffffd75f, 0xffffd787, 0xffffd7af, 0xffffd7d7, 0xffffd7ff, 0xffffff00, 0xffffff5f, 0xffffff87, 0xffffffaf, 0xffffffd7, 0xffffffff,
-
-			// 24 grey scale ramp:
-			0xff080808, 0xff121212, 0xff1c1c1c, 0xff262626, 0xff303030, 0xff3a3a3a, 0xff444444, 0xff4e4e4e, 0xff585858, 0xff626262, 0xff6c6c6c, 0xff767676,
-			0xff808080, 0xff8a8a8a, 0xff949494, 0xff9e9e9e, 0xffa8a8a8, 0xffb2b2b2, 0xffbcbcbc, 0xffc6c6c6, 0xffd0d0d0, 0xffdadada, 0xffe4e4e4, 0xffeeeeee,
-
-			// COLOR_INDEX_DEFAULT_FOREGROUND, COLOR_INDEX_DEFAULT_BACKGROUND and COLOR_INDEX_DEFAULT_CURSOR:
-			0xffffffff, 0xff000000, 0xffffffff };
-
-	public final int[] mDefaultColors = new int[TextStyle.NUM_INDEXED_COLORS];
-
-	public TerminalColorScheme() {
-		reset();
-	}
-
-	public void reset() {
-		System.arraycopy(DEFAULT_COLORSCHEME, 0, mDefaultColors, 0, TextStyle.NUM_INDEXED_COLORS);
-	}
-
-	public void updateWith(Properties props) {
-		reset();
-		for (Map.Entry<Object, Object> entries : props.entrySet()) {
-			String key = (String) entries.getKey();
-			String value = (String) entries.getValue();
-			int colorIndex;
-
-			if (key.equals("foreground")) {
-				colorIndex = TextStyle.COLOR_INDEX_FOREGROUND;
-			} else if (key.equals("background")) {
-				colorIndex = TextStyle.COLOR_INDEX_BACKGROUND;
-			} else if (key.equals("cursor")) {
-				colorIndex = TextStyle.COLOR_INDEX_CURSOR;
-			} else if (key.startsWith("color")) {
-				try {
-					colorIndex = Integer.parseInt(key.substring(5));
-				} catch (NumberFormatException e) {
-					throw new IllegalArgumentException("Invalid property: '" + key + "'");
-				}
-			} else {
-				throw new IllegalArgumentException("Invalid property: '" + key + "'");
-			}
-
-			int colorValue = TerminalColors.parse(value);
-			if (colorValue == 0) throw new IllegalArgumentException("Property '" + key + "' has invalid color: '" + value + "'");
-
-			mDefaultColors[colorIndex] = colorValue;
-		}
-	}
-
-}
--- a/app/src/main/java/com/termux/terminal/TerminalColors.java
+++ b/app/src/main/java/com/termux/terminal/TerminalColors.java
@@ -1,76 +0,0 @@
-package com.termux.terminal;
-
-/** Current terminal colors (if different from default). */
-public final class TerminalColors {
-
-	/** Static data - a bit ugly but ok for now. */
-	public static final TerminalColorScheme COLOR_SCHEME = new TerminalColorScheme();
-
-	/**
-	 * The current terminal colors, which are normally set from the color theme, but may be set dynamically with the OSC
-	 * 4 control sequence.
-	 */
-	public final int[] mCurrentColors = new int[TextStyle.NUM_INDEXED_COLORS];
-
-	/** Create a new instance with default colors from the theme. */
-	public TerminalColors() {
-		reset();
-	}
-
-	/** Reset a particular indexed color with the default color from the color theme. */
-	public void reset(int index) {
-		mCurrentColors[index] = COLOR_SCHEME.mDefaultColors[index];
-	}
-
-	/** Reset all indexed colors with the default color from the color theme. */
-	public void reset() {
-		System.arraycopy(COLOR_SCHEME.mDefaultColors, 0, mCurrentColors, 0, TextStyle.NUM_INDEXED_COLORS);
-	}
-
-	/**
-	 * Parse color according to http://manpages.ubuntu.com/manpages/intrepid/man3/XQueryColor.3.html
-	 * 
-	 * Highest bit is set if successful, so return value is 0xFF${R}${G}${B}. Return 0 if failed.
-	 */
-	static int parse(String c) {
-		try {
-			int skipInitial, skipBetween;
-			if (c.charAt(0) == '#') {
-				// #RGB, #RRGGBB, #RRRGGGBBB or #RRRRGGGGBBBB. Most significant bits.
-				skipInitial = 1;
-				skipBetween = 0;
-			} else if (c.startsWith("rgb:")) {
-				// rgb:<red>/<green>/<blue> where <red>, <green>, <blue> := h | hh | hhh | hhhh. Scaled.
-				skipInitial = 4;
-				skipBetween = 1;
-			} else {
-				return 0;
-			}
-			int charsForColors = c.length() - skipInitial - 2 * skipBetween;
-			if (charsForColors % 3 != 0) return 0; // Unequal lengths.
-			int componentLength = charsForColors / 3;
-			double mult = 255 / (Math.pow(2, componentLength * 4) - 1);
-
-			int currentPosition = skipInitial;
-			String rString = c.substring(currentPosition, currentPosition + componentLength);
-			currentPosition += componentLength + skipBetween;
-			String gString = c.substring(currentPosition, currentPosition + componentLength);
-			currentPosition += componentLength + skipBetween;
-			String bString = c.substring(currentPosition, currentPosition + componentLength);
-
-			int r = (int) (Integer.parseInt(rString, 16) * mult);
-			int g = (int) (Integer.parseInt(gString, 16) * mult);
-			int b = (int) (Integer.parseInt(bString, 16) * mult);
-			return 0xFF << 24 | r << 16 | g << 8 | b;
-		} catch (NumberFormatException | IndexOutOfBoundsException e) {
-			return 0;
-		}
-	}
-
-	/** Try parse a color from a text parameter and into a specified index. */
-	public void tryParseColor(int intoIndex, String textParameter) {
-		int c = parse(textParameter);
-		if (c != 0) mCurrentColors[intoIndex] = c;
-	}
-
-}
--- a/app/src/main/java/com/termux/terminal/TerminalEmulator.java
+++ b/app/src/main/java/com/termux/terminal/TerminalEmulator.java
--- a/app/src/main/java/com/termux/terminal/TerminalOutput.java
+++ b/app/src/main/java/com/termux/terminal/TerminalOutput.java
@@ -1,26 +0,0 @@
-package com.termux.terminal;
-
-import java.nio.charset.StandardCharsets;
-
-/** A client which receives callbacks from events triggered by feeding input to a {@link TerminalEmulator}. */
-public abstract class TerminalOutput {
-
-	/** Write a string using the UTF-8 encoding to the terminal client. */
-	public final void write(String data) {
-		byte[] bytes = data.getBytes(StandardCharsets.UTF_8);
-		write(bytes, 0, bytes.length);
-	}
-
-	/** Write bytes to the terminal client. */
-	public abstract void write(byte[] data, int offset, int count);
-
-	/** Notify the terminal client that the terminal title has changed. */
-	public abstract void titleChanged(String oldTitle, String newTitle);
-
-	/** Notify the terminal client that the terminal title has changed. */
-	public abstract void clipboardText(String text);
-
-	/** Notify the terminal client that a bell character (ASCII 7, bell, BEL, \a, ^G)) has been received. */
-	public abstract void onBell();
-
-}
--- a/app/src/main/java/com/termux/terminal/TerminalRow.java
+++ b/app/src/main/java/com/termux/terminal/TerminalRow.java
@@ -1,232 +0,0 @@
-package com.termux.terminal;
-
-import java.util.Arrays;
-
-/**
- * A row in a terminal, composed of a fixed number of cells.
- * 
- * The text in the row is stored in a char[] array, {@link #mText}, for quick access during rendering.
- */
-public final class TerminalRow {
-
-	private static final float SPARE_CAPACITY_FACTOR = 1.5f;
-
-	/** The number of columns in this terminal row. */
-	private final int mColumns;
-	/** The text filling this terminal row. */
-	public char[] mText;
-	/** The number of java char:s used in {@link #mText}. */
-	private short mSpaceUsed;
-	/** If this row has been line wrapped due to text output at the end of line. */
-	boolean mLineWrap;
-	/** The style bits of each cell in the row. See {@link TextStyle}. */
-	final int[] mStyle;
-
-	/** Construct a blank row (containing only whitespace, ' ') with a specified style. */
-	public TerminalRow(int columns, int style) {
-		mColumns = columns;
-		mText = new char[(int) (SPARE_CAPACITY_FACTOR * columns)];
-		mStyle = new int[columns];
-		clear(style);
-	}
-
-	/** NOTE: The sourceX2 is exclusive. */
-	public void copyInterval(TerminalRow line, int sourceX1, int sourceX2, int destinationX) {
-		final int x1 = line.findStartOfColumn(sourceX1);
-		final int x2 = line.findStartOfColumn(sourceX2);
-		boolean startingFromSecondHalfOfWideChar = (sourceX1 > 0 && line.wideDisplayCharacterStartingAt(sourceX1 - 1));
-		final char[] sourceChars = (this == line) ? Arrays.copyOf(line.mText, line.mText.length) : line.mText;
-		int latestNonCombiningWidth = 0;
-		for (int i = x1; i < x2; i++) {
-			char sourceChar = sourceChars[i];
-			int codePoint = Character.isHighSurrogate(sourceChar) ? Character.toCodePoint(sourceChar, sourceChars[++i]) : sourceChar;
-			if (startingFromSecondHalfOfWideChar) {
-				// Just treat copying second half of wide char as copying whitespace.
-				codePoint = ' ';
-				startingFromSecondHalfOfWideChar = false;
-			}
-			int w = WcWidth.width(codePoint);
-			if (w > 0) {
-				destinationX += latestNonCombiningWidth;
-				sourceX1 += latestNonCombiningWidth;
-				latestNonCombiningWidth = w;
-			}
-			setChar(destinationX, codePoint, line.getStyle(sourceX1));
-		}
-	}
-
-	public int getSpaceUsed() {
-		return mSpaceUsed;
-	}
-
-	/** Note that the column may end of second half of wide character. */
-	public int findStartOfColumn(int column) {
-		if (column == mColumns) return getSpaceUsed();
-
-		int currentColumn = 0;
-		int currentCharIndex = 0;
-		while (true) { // 0<2 1 < 2
-			int newCharIndex = currentCharIndex;
-			char c = mText[newCharIndex++]; // cci=1, cci=2
-			boolean isHigh = Character.isHighSurrogate(c);
-			int codePoint = isHigh ? Character.toCodePoint(c, mText[newCharIndex++]) : c;
-			int wcwidth = WcWidth.width(codePoint); // 1, 2
-			if (wcwidth > 0) {
-				currentColumn += wcwidth;
-				if (currentColumn == column) {
-					while (newCharIndex < mSpaceUsed) {
-						// Skip combining chars.
-						if (Character.isHighSurrogate(mText[newCharIndex])) {
-							if (WcWidth.width(Character.toCodePoint(mText[newCharIndex], mText[newCharIndex + 1])) <= 0) {
-								newCharIndex += 2;
-							} else {
-								break;
-							}
-						} else if (WcWidth.width(mText[newCharIndex]) <= 0) {
-							newCharIndex++;
-						} else {
-							break;
-						}
-					}
-					return newCharIndex;
-				} else if (currentColumn > column) {
-					// Wide column going past end.
-					return currentCharIndex;
-				}
-			}
-			currentCharIndex = newCharIndex;
-		}
-	}
-
-	private boolean wideDisplayCharacterStartingAt(int column) {
-		for (int currentCharIndex = 0, currentColumn = 0; currentCharIndex < mSpaceUsed;) {
-			char c = mText[currentCharIndex++];
-			int codePoint = Character.isHighSurrogate(c) ? Character.toCodePoint(c, mText[currentCharIndex++]) : c;
-			int wcwidth = WcWidth.width(codePoint);
-			if (wcwidth > 0) {
-				if (currentColumn == column && wcwidth == 2) return true;
-				currentColumn += wcwidth;
-				if (currentColumn > column) return false;
-			}
-		}
-		return false;
-	}
-
-	public void clear(int style) {
-		Arrays.fill(mText, ' ');
-		Arrays.fill(mStyle, style);
-		mSpaceUsed = (short) mColumns;
-	}
-
-	// https://github.com/steven676/Android-Terminal-Emulator/commit/9a47042620bec87617f0b4f5d50568535668fe26
-	public void setChar(int columnToSet, int codePoint, int style) {
-		mStyle[columnToSet] = style;
-
-		final int newCodePointDisplayWidth = WcWidth.width(codePoint);
-		final boolean newIsCombining = newCodePointDisplayWidth <= 0;
-
-		boolean wasExtraColForWideChar = (columnToSet > 0) && wideDisplayCharacterStartingAt(columnToSet - 1);
-
-		if (newIsCombining) {
-			// When standing at second half of wide character and inserting combining:
-			if (wasExtraColForWideChar) columnToSet--;
-		} else {
-			// Check if we are overwriting the second half of a wide character starting at the previous column:
-			if (wasExtraColForWideChar) setChar(columnToSet - 1, ' ', style);
-			// Check if we are overwriting the first half of a wide character starting at the next column:
-			boolean overwritingWideCharInNextColumn = newCodePointDisplayWidth == 2 && wideDisplayCharacterStartingAt(columnToSet + 1);
-			if (overwritingWideCharInNextColumn) setChar(columnToSet + 1, ' ', style);
-		}
-
-		char[] text = mText;
-		final int oldStartOfColumnIndex = findStartOfColumn(columnToSet);
-		final int oldCodePointDisplayWidth = WcWidth.width(text, oldStartOfColumnIndex);
-
-		// Get the number of elements in the mText array this column uses now
-		int oldCharactersUsedForColumn;
-		if (columnToSet + oldCodePointDisplayWidth < mColumns) {
-			oldCharactersUsedForColumn = findStartOfColumn(columnToSet + oldCodePointDisplayWidth) - oldStartOfColumnIndex;
-		} else {
-			// Last character.
-			oldCharactersUsedForColumn = mSpaceUsed - oldStartOfColumnIndex;
-		}
-
-		// Find how many chars this column will need
-		int newCharactersUsedForColumn = Character.charCount(codePoint);
-		if (newIsCombining) {
-			// Combining characters are added to the contents of the column instead of overwriting them, so that they
-			// modify the existing contents.
-			// FIXME: Put a limit of combining characters.
-			// FIXME: Unassigned characters also get width=0.
-			newCharactersUsedForColumn += oldCharactersUsedForColumn;
-		}
-
-		int oldNextColumnIndex = oldStartOfColumnIndex + oldCharactersUsedForColumn;
-		int newNextColumnIndex = oldStartOfColumnIndex + newCharactersUsedForColumn;
-
-		final int javaCharDifference = newCharactersUsedForColumn - oldCharactersUsedForColumn;
-		if (javaCharDifference > 0) {
-			// Shift the rest of the line right.
-			int oldCharactersAfterColumn = mSpaceUsed - oldNextColumnIndex;
-			if (mSpaceUsed + javaCharDifference > text.length) {
-				// We need to grow the array
-				char[] newText = new char[text.length + mColumns];
-				System.arraycopy(text, 0, newText, 0, oldStartOfColumnIndex + oldCharactersUsedForColumn);
-				System.arraycopy(text, oldNextColumnIndex, newText, newNextColumnIndex, oldCharactersAfterColumn);
-				mText = text = newText;
-			} else {
-				System.arraycopy(text, oldNextColumnIndex, text, newNextColumnIndex, oldCharactersAfterColumn);
-			}
-		} else if (javaCharDifference < 0) {
-			// Shift the rest of the line left.
-			System.arraycopy(text, oldNextColumnIndex, text, newNextColumnIndex, mSpaceUsed - oldNextColumnIndex);
-		}
-		mSpaceUsed += javaCharDifference;
-
-		// Store char. A combining character is stored at the end of the existing contents so that it modifies them:
-		//noinspection ResultOfMethodCallIgnored - since we already now how many java chars is used.
-		Character.toChars(codePoint, text, oldStartOfColumnIndex + (newIsCombining ? oldCharactersUsedForColumn : 0));
-
-		if (oldCodePointDisplayWidth == 2 && newCodePointDisplayWidth == 1) {
-			// Replace second half of wide char with a space. Which mean that we actually add a ' ' java character.
-			if (mSpaceUsed + 1 > text.length) {
-				char[] newText = new char[text.length + mColumns];
-				System.arraycopy(text, 0, newText, 0, newNextColumnIndex);
-				System.arraycopy(text, newNextColumnIndex, newText, newNextColumnIndex + 1, mSpaceUsed - newNextColumnIndex);
-				mText = text = newText;
-			} else {
-				System.arraycopy(text, newNextColumnIndex, text, newNextColumnIndex + 1, mSpaceUsed - newNextColumnIndex);
-			}
-			text[newNextColumnIndex] = ' ';
-
-			++mSpaceUsed;
-		} else if (oldCodePointDisplayWidth == 1 && newCodePointDisplayWidth == 2) {
-			if (columnToSet == mColumns - 1) {
-				throw new IllegalArgumentException("Cannot put wide character in last column");
-			} else if (columnToSet == mColumns - 2) {
-				// Truncate the line to the second part of this wide char:
-				mSpaceUsed = (short) newNextColumnIndex;
-			} else {
-				// Overwrite the contents of the next column, which mean we actually remove java characters. Due to the
-				// check at the beginning of this method we know that we are not overwriting a wide char.
-				int newNextNextColumnIndex = newNextColumnIndex + (Character.isHighSurrogate(mText[newNextColumnIndex]) ? 2 : 1);
-				int nextLen = newNextNextColumnIndex - newNextColumnIndex;
-
-				// Shift the array leftwards.
-				System.arraycopy(text, newNextNextColumnIndex, text, newNextColumnIndex, mSpaceUsed - newNextNextColumnIndex);
-				mSpaceUsed -= nextLen;
-			}
-		}
-	}
-
-	boolean isBlank() {
-		for (int charIndex = 0, charLen = getSpaceUsed(); charIndex < charLen; charIndex++)
-			if (mText[charIndex] != ' ') return false;
-		return true;
-	}
-
-	public final int getStyle(int column) {
-		return mStyle[column];
-	}
-
-}
--- a/app/src/main/java/com/termux/terminal/TerminalSession.java
+++ b/app/src/main/java/com/termux/terminal/TerminalSession.java
@@ -1,314 +0,0 @@
-package com.termux.terminal;
-
-import java.io.FileDescriptor;
-import java.io.FileInputStream;
-import java.io.FileOutputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.lang.reflect.Field;
-import java.nio.charset.StandardCharsets;
-import java.util.UUID;
-
-import android.annotation.SuppressLint;
-import android.os.Handler;
-import android.os.Message;
-import android.util.Log;
-
-/**
- * A terminal session, consisting of a process coupled to a terminal interface.
- * <p>
- * The subprocess will be executed by the constructor, and when the size is made known by a call to
- * {@link #updateSize(int, int)} terminal emulation will begin and threads will be spawned to handle the subprocess I/O.
- * All terminal emulation and callback methods will be performed on the main thread.
- * <p>
- * The child process may be exited forcefully by using the {@link #finishIfRunning()} method.
- * 
- * NOTE: The terminal session may outlive the EmulatorView, so be careful with callbacks!
- */
-public final class TerminalSession extends TerminalOutput {
-
-	/** Callback to be invoked when a {@link TerminalSession} changes. */
-	public interface SessionChangedCallback {
-		void onTextChanged(TerminalSession changedSession);
-
-		void onTitleChanged(TerminalSession changedSession);
-
-		void onSessionFinished(TerminalSession finishedSession);
-
-		void onClipboardText(TerminalSession session, String text);
-
-		void onBell(TerminalSession session);
-	}
-
-	private static FileDescriptor wrapFileDescriptor(int fileDescriptor) {
-		FileDescriptor result = new FileDescriptor();
-		try {
-			Field descriptorField;
-			try {
-				descriptorField = FileDescriptor.class.getDeclaredField("descriptor");
-			} catch (NoSuchFieldException e) {
-				// For desktop java:
-				descriptorField = FileDescriptor.class.getDeclaredField("fd");
-			}
-			descriptorField.setAccessible(true);
-			descriptorField.set(result, fileDescriptor);
-		} catch (NoSuchFieldException | IllegalAccessException | IllegalArgumentException e) {
-			Log.wtf(EmulatorDebug.LOG_TAG, "Error accessing FileDescriptor#descriptor private field", e);
-			System.exit(1);
-		}
-		return result;
-	}
-
-	private static final int MSG_NEW_INPUT = 1;
-	private static final int MSG_PROCESS_EXITED = 4;
-
-	public final String mHandle = UUID.randomUUID().toString();
-
-	TerminalEmulator mEmulator;
-
-	/**
-	 * A queue written to from a separate thread when the process outputs, and read by main thread to process by
-	 * terminal emulator.
-	 */
-	final ByteQueue mProcessToTerminalIOQueue = new ByteQueue(4096);
-	/**
-	 * A queue written to from the main thread due to user interaction, and read by another thread which forwards by
-	 * writing to the {@link #mTerminalFileDescriptor}.
-	 */
-	final ByteQueue mTerminalToProcessIOQueue = new ByteQueue(4096);
-	/** Buffer to write translate code points into utf8 before writing to mTerminalToProcessIOQueue */
-	private final byte[] mUtf8InputBuffer = new byte[5];
-
-	/** Callback which gets notified when a session finishes or changes title. */
-	final SessionChangedCallback mChangeCallback;
-
-	/** The pid of the shell process or -1 if not running. */
-	int mShellPid;
-	int mShellExitStatus = -1;
-	/**
-	 * The file descriptor referencing the master half of a pseudo-terminal pair, resulting from calling
-	 * {@link JNI#createSubprocess(String, String, String[], String[], int[])}.
-	 */
-	final int mTerminalFileDescriptor;
-
-	/** Set by the application for user identification of session, not by terminal. */
-	public String mSessionName;
-
-	@SuppressLint("HandlerLeak")
-	final Handler mMainThreadHandler = new Handler() {
-		final byte[] mReceiveBuffer = new byte[4 * 1024];
-
-		@Override
-		public void handleMessage(Message msg) {
-			if (msg.what == MSG_NEW_INPUT && isRunning()) {
-				int bytesRead = mProcessToTerminalIOQueue.read(mReceiveBuffer, false);
-				if (bytesRead > 0) {
-					mEmulator.append(mReceiveBuffer, bytesRead);
-					notifyScreenUpdate();
-				}
-			} else if (msg.what == MSG_PROCESS_EXITED) {
-				int exitCode = (Integer) msg.obj;
-				cleanupResources(exitCode);
-				mChangeCallback.onSessionFinished(TerminalSession.this);
-
-				String exitDescription = "\r\n[Process completed";
-				if (exitCode > 0) {
-					// Non-zero process exit.
-					exitDescription += " with code " + exitCode;
-				} else if (exitCode < 0) {
-					// Negated signal.
-					exitDescription += " with signal " + (-exitCode);
-				}
-				exitDescription += " - press Enter to close]";
-
-				byte[] bytesToWrite = exitDescription.getBytes(StandardCharsets.UTF_8);
-				mEmulator.append(bytesToWrite, bytesToWrite.length);
-				notifyScreenUpdate();
-			}
-		}
-	};
-
-	public TerminalSession(String shellPath, String cwd, String[] args, String[] env, SessionChangedCallback changeCallback) {
-		mChangeCallback = changeCallback;
-
-		int[] processId = new int[1];
-		mTerminalFileDescriptor = JNI.createSubprocess(shellPath, cwd, args, env, processId);
-		mShellPid = processId[0];
-	}
-
-	/** Inform the attached pty of the new size and reflow or initialize the emulator. */
-	public void updateSize(int columns, int rows) {
-		JNI.setPtyWindowSize(mTerminalFileDescriptor, rows, columns);
-		if (mEmulator == null) {
-			initializeEmulator(columns, rows);
-		} else {
-			mEmulator.resize(columns, rows);
-		}
-	}
-
-	/** The terminal title as set through escape sequences or null if none set. */
-	public String getTitle() {
-		return (mEmulator == null) ? null : mEmulator.getTitle();
-	}
-
-	/**
-	 * Set the terminal emulator's window size and start terminal emulation.
-	 * 
-	 * @param columns
-	 *            The number of columns in the terminal window.
-	 * @param rows
-	 *            The number of rows in the terminal window.
-	 */
-	public void initializeEmulator(int columns, int rows) {
-		mEmulator = new TerminalEmulator(this, columns, rows, /* transcript= */5000);
-		final FileDescriptor terminalFileDescriptorWrapped = wrapFileDescriptor(mTerminalFileDescriptor);
-
-		new Thread("TermSessionInputReader[pid=" + mShellPid + "]") {
-			@Override
-			public void run() {
-				try (InputStream termIn = new FileInputStream(terminalFileDescriptorWrapped)) {
-					final byte[] buffer = new byte[4096];
-					while (true) {
-						int read = termIn.read(buffer);
-						if (read == -1) return;
-						if (!mProcessToTerminalIOQueue.write(buffer, 0, read)) return;
-						mMainThreadHandler.sendEmptyMessage(MSG_NEW_INPUT);
-					}
-				} catch (Exception e) {
-					// Ignore, just shutting down.
-				} finally {
-					// Now wait for process exit:
-					int processExitCode = JNI.waitFor(mShellPid);
-					mMainThreadHandler.sendMessage(mMainThreadHandler.obtainMessage(MSG_PROCESS_EXITED, processExitCode));
-				}
-			}
-		}.start();
-
-		new Thread("TermSessionOutputWriter[pid=" + mShellPid + "]") {
-			@Override
-			public void run() {
-				final byte[] buffer = new byte[4096];
-				try (FileOutputStream termOut = new FileOutputStream(terminalFileDescriptorWrapped)) {
-					while (true) {
-						int bytesToWrite = mTerminalToProcessIOQueue.read(buffer, true);
-						if (bytesToWrite == -1) return;
-						termOut.write(buffer, 0, bytesToWrite);
-					}
-				} catch (IOException e) {
-					// Ignore.
-				}
-			}
-		}.start();
-	}
-
-	/** Write data to the shell process. */
-	@Override
-	public void write(byte[] data, int offset, int count) {
-		mTerminalToProcessIOQueue.write(data, offset, count);
-	}
-
-	/** Write the Unicode code point to the terminal encoded in UTF-8. */
-	public void writeCodePoint(boolean prependEscape, int codePoint) {
-		if (codePoint > 1114111 || (codePoint >= 0xD800 && codePoint <= 0xDFFF)) {
-			// 1114111 (= 2**16 + 1024**2 - 1) is the highest code point, [0xD800,0xDFFF] is the surrogate range.
-			throw new IllegalArgumentException("Invalid code point: " + codePoint);
-		}
-
-		int bufferPosition = 0;
-		if (prependEscape) mUtf8InputBuffer[bufferPosition++] = 27;
-
-		if (codePoint <= /* 7 bits */0b1111111) {
-			mUtf8InputBuffer[bufferPosition++] = (byte) codePoint;
-		} else if (codePoint <= /* 11 bits */0b11111111111) {
-			/* 110xxxxx leading byte with leading 5 bits */
-			mUtf8InputBuffer[bufferPosition++] = (byte) (0b11000000 | (codePoint >> 6));
-			/* 10xxxxxx continuation byte with following 6 bits */
-			mUtf8InputBuffer[bufferPosition++] = (byte) (0b10000000 | (codePoint & 0b111111));
-		} else if (codePoint <= /* 16 bits */0b1111111111111111) {
-			/* 1110xxxx leading byte with leading 4 bits */
-			mUtf8InputBuffer[bufferPosition++] = (byte) (0b11100000 | (codePoint >> 12));
-			/* 10xxxxxx continuation byte with following 6 bits */
-			mUtf8InputBuffer[bufferPosition++] = (byte) (0b10000000 | ((codePoint >> 6) & 0b111111));
-			/* 10xxxxxx continuation byte with following 6 bits */
-			mUtf8InputBuffer[bufferPosition++] = (byte) (0b10000000 | (codePoint & 0b111111));
-		} else { /* We have checked codePoint <= 1114111 above, so we have max 21 bits = 0b111111111111111111111 */
-			/* 11110xxx leading byte with leading 3 bits */
-			mUtf8InputBuffer[bufferPosition++] = (byte) (0b11110000 | (codePoint >> 18));
-			/* 10xxxxxx continuation byte with following 6 bits */
-			mUtf8InputBuffer[bufferPosition++] = (byte) (0b10000000 | ((codePoint >> 12) & 0b111111));
-			/* 10xxxxxx continuation byte with following 6 bits */
-			mUtf8InputBuffer[bufferPosition++] = (byte) (0b10000000 | ((codePoint >> 6) & 0b111111));
-			/* 10xxxxxx continuation byte with following 6 bits */
-			mUtf8InputBuffer[bufferPosition++] = (byte) (0b10000000 | (codePoint & 0b111111));
-		}
-		write(mUtf8InputBuffer, 0, bufferPosition);
-	}
-
-	public TerminalEmulator getEmulator() {
-		return mEmulator;
-	}
-
-	/** Notify the {@link #mChangeCallback} that the screen has changed. */
-	protected void notifyScreenUpdate() {
-		mChangeCallback.onTextChanged(this);
-	}
-
-	/** Reset state for terminal emulator state. */
-	public void reset() {
-		mEmulator.reset();
-		notifyScreenUpdate();
-	}
-
-	/**
-	 * Finish this terminal session. Frees resources used by the terminal emulator and closes the attached
-	 * <code>InputStream</code> and <code>OutputStream</code>.
-	 */
-	public void finishIfRunning() {
-		if (isRunning()) {
-			JNI.hangupProcessGroup(mShellPid);
-			// Stop the reader and writer threads, and close the I/O streams. Note that
-			// cleanupResources() will be run later.
-			mTerminalToProcessIOQueue.close();
-			mProcessToTerminalIOQueue.close();
-			JNI.close(mTerminalFileDescriptor);
-		}
-	}
-
-	/** Cleanup resources when the process exits. */
-	void cleanupResources(int exitStatus) {
-		synchronized (this) {
-			mShellPid = -1;
-			mShellExitStatus = exitStatus;
-		}
-
-		// Stop the reader and writer threads, and close the I/O streams
-		mTerminalToProcessIOQueue.close();
-		mProcessToTerminalIOQueue.close();
-		JNI.close(mTerminalFileDescriptor);
-	}
-
-	@Override
-	public void titleChanged(String oldTitle, String newTitle) {
-		mChangeCallback.onTitleChanged(this);
-	}
-
-	public synchronized boolean isRunning() {
-		return mShellPid != -1;
-	}
-
-	/** Only valid if not {@link #isRunning()}. */
-	public synchronized int getExitStatus() {
-		return mShellExitStatus;
-	}
-
-	@Override
-	public void clipboardText(String text) {
-		mChangeCallback.onClipboardText(this, text);
-	}
-
-	@Override
-	public void onBell() {
-		mChangeCallback.onBell(this);
-	}
-
-}
--- a/app/src/main/java/com/termux/terminal/TextStyle.java
+++ b/app/src/main/java/com/termux/terminal/TextStyle.java
@@ -1,55 +0,0 @@
-package com.termux.terminal;
-
-/**
- * Encodes effects, foreground and background colors into a 32 bit integer, which are stored for each cell in a terminal
- * row in {@link TerminalRow#mStyle}.
- * 
- * The foreground and background colors take 9 bits each, leaving (32-9-9)=14 bits for effect flags. Using 9 for now
- * (the different CHARACTER_ATTRIBUTE_* bits).
- */
-public final class TextStyle {
-
-	public final static int CHARACTER_ATTRIBUTE_BOLD = 1;
-	public final static int CHARACTER_ATTRIBUTE_ITALIC = 1 << 1;
-	public final static int CHARACTER_ATTRIBUTE_UNDERLINE = 1 << 2;
-	public final static int CHARACTER_ATTRIBUTE_BLINK = 1 << 3;
-	public final static int CHARACTER_ATTRIBUTE_INVERSE = 1 << 4;
-	public final static int CHARACTER_ATTRIBUTE_INVISIBLE = 1 << 5;
-	public final static int CHARACTER_ATTRIBUTE_STRIKETHROUGH = 1 << 6;
-	/**
-	 * The selective erase control functions (DECSED and DECSEL) can only erase characters defined as erasable.
-	 * 
-	 * This bit is set if DECSCA (Select Character Protection Attribute) has been used to define the characters that
-	 * come after it as erasable from the screen.
-	 */
-	public final static int CHARACTER_ATTRIBUTE_PROTECTED = 1 << 7;
-	/** Dim colors. Also known as faint or half intensity. */
-	public final static int CHARACTER_ATTRIBUTE_DIM = 1 << 8;
-
-	public final static int COLOR_INDEX_FOREGROUND = 256;
-	public final static int COLOR_INDEX_BACKGROUND = 257;
-	public final static int COLOR_INDEX_CURSOR = 258;
-
-	/** The 256 standard color entries and the three special (foreground, background and cursor) ones. */
-	public final static int NUM_INDEXED_COLORS = 259;
-
-	/** Normal foreground and background colors and no effects. */
-	final static int NORMAL = encode(COLOR_INDEX_FOREGROUND, COLOR_INDEX_BACKGROUND, 0);
-
-	static int encode(int foreColor, int backColor, int effect) {
-		return ((effect & 0b111111111) << 18) | ((foreColor & 0b111111111) << 9) | (backColor & 0b111111111);
-	}
-
-	public static int decodeForeColor(int encodedColor) {
-		return (encodedColor >> 9) & 0b111111111;
-	}
-
-	public static int decodeBackColor(int encodedColor) {
-		return encodedColor & 0b111111111;
-	}
-
-	public static int decodeEffect(int encodedColor) {
-		return (encodedColor >> 18) & 0b111111111;
-	}
-
-}
--- a/app/src/main/java/com/termux/terminal/WcWidth.java
+++ b/app/src/main/java/com/termux/terminal/WcWidth.java
@@ -1,108 +0,0 @@
-package com.termux.terminal;
-
-/**
- * wcwidth() implementation from http://git.musl-libc.org/cgit/musl/tree/src/ctype
- * 
- * Modified to return 0 instead of -1.
- */
-public final class WcWidth {
-
-	private static final short table[] = { 16, 16, 16, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 16, 16, 32, 16, 16, 16, 33, 34, 35, 36, 37, 38,
-			39, 16, 16, 40, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 41, 42, 16, 16, 43, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-			16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-			16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-			16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 44, 16, 45, 46, 47, 48, 16, 16, 16, 16, 16,
-			16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-			16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-			49, 16, 16, 50, 51, 16, 52, 16, 16, 16, 16, 16, 16, 16, 16, 53, 16, 16, 16, 16, 16, 54, 55, 16, 16, 16, 16, 56, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-			16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-			16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-			16, 16, 16, 16, 16, 57, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-			16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-			16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 58, 59, 16, 16, 16, 16, 16, 16,
-			16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-			16, 16, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 255, 255, 255, 255, 255, 255, 255, 255,
-			255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-			255, 255, 255, 255, 255, 255, 255, 255, 255, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-			248, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 254, 255, 255, 255, 255, 191, 182, 0, 0, 0,
-			0, 0, 0, 0, 31, 0, 255, 7, 0, 0, 0, 0, 0, 248, 255, 255, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 192, 191, 159, 61, 0, 0, 0, 128, 2, 0, 0, 0,
-			255, 255, 255, 7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 192, 255, 1, 0, 0, 0, 0, 0, 0, 248, 15, 0, 0, 0, 192, 251, 239, 62, 0, 0, 0, 0, 0, 14, 0, 0, 0, 0,
-			0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 240, 255, 255, 127, 7, 0, 0, 0, 0, 0, 0, 20, 254, 33, 254, 0, 12, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 16, 30, 32, 0,
-			0, 12, 0, 0, 0, 6, 0, 0, 0, 0, 0, 0, 16, 134, 57, 2, 0, 0, 0, 35, 0, 6, 0, 0, 0, 0, 0, 0, 16, 190, 33, 0, 0, 12, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 144,
-			30, 32, 64, 0, 12, 0, 0, 0, 4, 0, 0, 0, 0, 0, 0, 0, 1, 32, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 192, 193, 61, 96, 0, 12, 0, 0, 0, 0, 0, 0, 0, 0,
-			0, 0, 144, 64, 48, 0, 0, 12, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 30, 32, 0, 0, 12, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 92, 0, 0, 0, 0, 0, 0, 0, 0,
-			0, 0, 0, 242, 7, 128, 127, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 242, 27, 0, 63, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 0, 0, 160, 2, 0, 0, 0, 0, 0, 0, 254,
-			127, 223, 224, 255, 254, 255, 255, 255, 31, 64, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 224, 253, 102, 0, 0, 0, 195, 1, 0, 30, 0, 100, 32, 0, 32, 0, 0,
-			0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 224, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 28, 0, 0, 0,
-			28, 0, 0, 0, 12, 0, 0, 0, 12, 0, 0, 0, 0, 0, 0, 0, 176, 63, 64, 254, 15, 32, 0, 0, 0, 0, 0, 56, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-			0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 135, 1, 4, 14, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-			128, 1, 0, 0, 0, 0, 0, 0, 64, 127, 229, 31, 248, 159, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 15, 0, 0, 0, 0, 0, 208, 23, 4, 0, 0, 0, 0,
-			248, 15, 0, 3, 0, 0, 0, 60, 11, 0, 0, 0, 0, 0, 0, 64, 163, 3, 0, 0, 0, 0, 0, 0, 240, 207, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-			247, 255, 253, 33, 16, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 255, 255, 255, 255, 127, 0, 0, 240, 0, 248, 0, 0,
-			0, 124, 0, 0, 0, 0, 0, 0, 31, 252, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 255, 255, 255, 255, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-			0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 128, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 128, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 255, 255, 255,
-			255, 0, 0, 0, 0, 0, 60, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 6, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 128,
-			247, 63, 0, 0, 0, 128, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 0, 68, 8, 0, 0, 96, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 16, 0, 0, 0,
-			255, 255, 3, 0, 0, 0, 0, 0, 192, 63, 0, 0, 128, 255, 3, 0, 0, 0, 0, 0, 7, 0, 0, 0, 0, 0, 200, 19, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 126, 102,
-			0, 8, 16, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 157, 193, 2, 0, 0, 0, 0, 48, 64, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-			0, 0, 0, 0, 0, 0, 32, 33, 0, 0, 0, 0, 0, 64, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 255, 255, 0, 0,
-			127, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 128, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-			0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 14, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 32, 110, 240, 0,
-			0, 0, 0, 0, 135, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 255, 127, 0, 0, 0, 0, 0, 0, 0, 3, 0,
-			0, 0, 0, 0, 120, 38, 0, 0, 0, 0, 0, 0, 0, 0, 7, 0, 0, 0, 128, 239, 31, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 0, 0, 0, 0, 0, 192, 127, 0, 0, 0, 0, 0, 0, 0,
-			0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 40, 191, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-			0, 0, 128, 7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 128, 3, 248, 255, 231, 15, 0, 0, 0, 60, 0, 0, 0, 0, 0, 0,
-			0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 28, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, };
-
-	private static final short wtable[] = { 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 18, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-			16, 16, 16, 16, 16, 16, 19, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 20, 21, 22, 23, 24, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
-			17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 25, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
-			17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
-			17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 26, 16, 16, 16, 16, 27, 16, 16, 17, 17, 17, 17, 17,
-			17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
-			17, 28, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 17, 17,
-			16, 16, 16, 29, 30, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-			16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-			16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-			16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-			16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 31, 16, 16, 16,
-			16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-			16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 32, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-			16, 16, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 255, 255, 255, 255, 255, 255, 255, 255,
-			255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-			255, 255, 255, 255, 255, 255, 255, 0, 0, 0, 0, 0, 0, 0, 0, 248, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 252, 0, 0, 0, 0, 0, 6, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-			0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 255, 255, 255, 251, 255, 255, 255, 255, 255, 255,
-			255, 255, 255, 255, 15, 0, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-			255, 255, 63, 0, 0, 0, 255, 15, 255, 255, 255, 255, 255, 255, 255, 127, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 127, 254, 255, 255, 255,
-			255, 255, 255, 255, 255, 255, 255, 255, 255, 224, 255, 255, 255, 255, 63, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 127, 255, 255,
-			255, 255, 255, 7, 255, 255, 255, 255, 15, 0, 255, 255, 255, 255, 255, 127, 255, 255, 255, 255, 255, 0, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-			255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 127, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-			255, 255, 255, 255, 255, 255, 255, 255, 0, 0, 0, 0, 0, 0, 0, 0, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-			255, 31, 255, 255, 255, 255, 255, 255, 127, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 255, 255, 255, 31, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-			0, 0, 0, 0, 0, 0, 0, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 15, 0, 255, 255, 127, 248,
-			255, 255, 255, 255, 255, 15, 0, 0, 255, 3, 0, 0, 255, 255, 255, 255, 247, 255, 127, 15, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 254,
-			255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 127, 0, 0, 0, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-			0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 7, 0, 255, 255, 255, 255, 255, 7, 255, 1, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-			0, 0, 0, 0, 0, 0, 0, 0, 0 };
-
-	/** Return the terminal display width of a code point: 0, 1 or 2. */
-	public static int width(int wc) {
-		if (wc < 0xff) return (wc + 1 & 0x7f) >= 0x21 ? 1 : (wc != 0) ? 0 : 0;
-		if ((wc & 0xfffeffff) < 0xfffe) {
-			if (((table[table[wc >> 8] * 32 + ((wc & 255) >> 3)] >> (wc & 7)) & 1) != 0) return 0;
-			if (((wtable[wtable[wc >> 8] * 32 + ((wc & 255) >> 3)] >> (wc & 7)) & 1) != 0) return 2;
-			return 1;
-		}
-		if ((wc & 0xfffe) == 0xfffe) return 0;
-		if (wc - 0x20000 < 0x20000) return 2;
-		if (wc == 0xe0001 || wc - 0xe0020 < 0x5f || wc - 0xe0100 < 0xef) return 0;
-		return 1;
-	}
-
-	/** The width at an index position in a java char array. */
-	public static int width(char[] chars, int index) {
-		char c = chars[index];
-		return Character.isHighSurrogate(c) ? width(Character.toCodePoint(c, chars[index + 1])) : width(c);
-	}
-
-}
--- a/app/src/main/java/com/termux/view/GestureAndScaleRecognizer.java
+++ b/app/src/main/java/com/termux/view/GestureAndScaleRecognizer.java
@@ -1,111 +0,0 @@
-package com.termux.view;
-
-import android.content.Context;
-import android.view.GestureDetector;
-import android.view.MotionEvent;
-import android.view.ScaleGestureDetector;
-
-/** A combination of {@link GestureDetector} and {@link ScaleGestureDetector}. */
-public final class GestureAndScaleRecognizer {
-
-	public interface Listener {
-		boolean onSingleTapUp(MotionEvent e);
-
-		boolean onDoubleTap(MotionEvent e);
-
-		boolean onScroll(MotionEvent e2, float dx, float dy);
-
-		boolean onFling(MotionEvent e, float velocityX, float velocityY);
-
-		boolean onScale(float focusX, float focusY, float scale);
-
-		boolean onDown(float x, float y);
-
-		boolean onUp(MotionEvent e);
-
-		void onLongPress(MotionEvent e);
-	}
-
-	private final GestureDetector mGestureDetector;
-	private final ScaleGestureDetector mScaleDetector;
-	final Listener mListener;
-	boolean isAfterLongPress;
-
-	public GestureAndScaleRecognizer(Context context, Listener listener) {
-		mListener = listener;
-
-		mGestureDetector = new GestureDetector(context, new GestureDetector.SimpleOnGestureListener() {
-			@Override
-			public boolean onScroll(MotionEvent e1, MotionEvent e2, float dx, float dy) {
-				return mListener.onScroll(e2, dx, dy);
-			}
-
-			@Override
-			public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {
-				return mListener.onFling(e2, velocityX, velocityY);
-			}
-
-			@Override
-			public boolean onDown(MotionEvent e) {
-				return mListener.onDown(e.getX(), e.getY());
-			}
-
-			@Override
-			public void onLongPress(MotionEvent e) {
-				mListener.onLongPress(e);
-				isAfterLongPress = true;
-			}
-		}, null, true /* ignoreMultitouch */);
-
-		mGestureDetector.setOnDoubleTapListener(new GestureDetector.OnDoubleTapListener() {
-			@Override
-			public boolean onSingleTapConfirmed(MotionEvent e) {
-				return mListener.onSingleTapUp(e);
-			}
-
-			@Override
-			public boolean onDoubleTap(MotionEvent e) {
-				return mListener.onDoubleTap(e);
-			}
-
-			@Override
-			public boolean onDoubleTapEvent(MotionEvent e) {
-				return true;
-			}
-		});
-
-		mScaleDetector = new ScaleGestureDetector(context, new ScaleGestureDetector.SimpleOnScaleGestureListener() {
-			@Override
-			public boolean onScaleBegin(ScaleGestureDetector detector) {
-				return true;
-			}
-
-			@Override
-			public boolean onScale(ScaleGestureDetector detector) {
-				return mListener.onScale(detector.getFocusX(), detector.getFocusY(), detector.getScaleFactor());
-			}
-		});
-	}
-
-	public void onTouchEvent(MotionEvent event) {
-		mGestureDetector.onTouchEvent(event);
-		mScaleDetector.onTouchEvent(event);
-		switch (event.getAction()) {
-			case MotionEvent.ACTION_DOWN:
-				isAfterLongPress = false;
-				break;
-			case MotionEvent.ACTION_UP:
-				if (!isAfterLongPress) {
-					// This behaviour is desired when in e.g. vim with mouse events, where we do not
-					// want to move the cursor when lifting finger after a long press.
-					mListener.onUp(event);
-				}
-				break;
-		}
-	}
-
-	public boolean isInProgress() {
-		return mScaleDetector.isInProgress();
-	}
-
-}
--- a/app/src/main/java/com/termux/view/TerminalKeyListener.java
+++ b/app/src/main/java/com/termux/view/TerminalKeyListener.java
@@ -1,24 +0,0 @@
-package com.termux.view;
-
-import android.view.MotionEvent;
-import android.view.ScaleGestureDetector;
-
-/**
- * Input and scale listener which may be set on a {@link TerminalView} through
- * {@link TerminalView#setOnKeyListener(TerminalKeyListener)}.
- *
- * TODO: Rename to TerminalViewClient.
- */
-public interface TerminalKeyListener {
-
-	/** Callback function on scale events according to {@link ScaleGestureDetector#getScaleFactor()}. */
-	float onScale(float scale);
-
-	/** On a single tap on the terminal if terminal mouse reporting not enabled. */
-	void onSingleTapUp(MotionEvent e);
-
-	boolean shouldBackButtonBeMappedToEscape();
-
-	void copyModeChanged(boolean copyMode);
-
-}
--- a/app/src/main/java/com/termux/view/TerminalRenderer.java
+++ b/app/src/main/java/com/termux/view/TerminalRenderer.java
@@ -1,236 +0,0 @@
-package com.termux.view;
-
-import android.graphics.Canvas;
-import android.graphics.Paint;
-import android.graphics.PorterDuff;
-import android.graphics.Typeface;
-
-import com.termux.terminal.TerminalBuffer;
-import com.termux.terminal.TerminalEmulator;
-import com.termux.terminal.TerminalRow;
-import com.termux.terminal.TextStyle;
-import com.termux.terminal.WcWidth;
-
-/**
- * Renderer of a {@link TerminalEmulator} into a {@link Canvas}.
- * 
- * Saves font metrics, so needs to be recreated each time the typeface or font size changes.
- */
-final class TerminalRenderer {
-
-	final int mTextSize;
-	final Typeface mTypeface;
-	private final Paint mTextPaint = new Paint();
-
-	/** The width of a single mono spaced character obtained by {@link Paint#measureText(String)} on a single 'X'. */
-	final float mFontWidth;
-	/** The {@link Paint#getFontSpacing()}. See http://www.fampennings.nl/maarten/android/08numgrid/font.png */
-	final int mFontLineSpacing;
-	/** The {@link Paint#ascent()}. See http://www.fampennings.nl/maarten/android/08numgrid/font.png */
-	private final int mFontAscent;
-	/** The {@link #mFontLineSpacing} + {@link #mFontAscent}. */
-	final int mFontLineSpacingAndAscent;
-
-	private final float[] asciiMeasures = new float[127];
-
-	public TerminalRenderer(int textSize, Typeface typeface) {
-		mTextSize = textSize;
-		mTypeface = typeface;
-
-		mTextPaint.setTypeface(typeface);
-		mTextPaint.setAntiAlias(true);
-		mTextPaint.setTextSize(textSize);
-
-		mFontLineSpacing = (int) Math.ceil(mTextPaint.getFontSpacing());
-		mFontAscent = (int) Math.ceil(mTextPaint.ascent());
-		mFontLineSpacingAndAscent = mFontLineSpacing + mFontAscent;
-		mFontWidth = mTextPaint.measureText("X");
-
-		StringBuilder sb = new StringBuilder(" ");
-		for (int i = 0; i < asciiMeasures.length; i++) {
-			sb.setCharAt(0, (char) i);
-			asciiMeasures[i] = mTextPaint.measureText(sb, 0, 1);
-		}
-	}
-
-	/** Render the terminal to a canvas with at a specified row scroll, and an optional rectangular selection. */
-	public final void render(TerminalEmulator mEmulator, Canvas canvas, int topRow, int selectionY1, int selectionY2, int selectionX1, int selectionX2) {
-		final boolean reverseVideo = mEmulator.isReverseVideo();
-		final int endRow = topRow + mEmulator.mRows;
-		final int columns = mEmulator.mColumns;
-		final int cursorCol = mEmulator.getCursorCol();
-		final int cursorRow = mEmulator.getCursorRow();
-		final boolean cursorVisible = mEmulator.isShowingCursor();
-		final TerminalBuffer screen = mEmulator.getScreen();
-		final int[] palette = mEmulator.mColors.mCurrentColors;
-
-		int fillColor = palette[reverseVideo ? TextStyle.COLOR_INDEX_FOREGROUND : TextStyle.COLOR_INDEX_BACKGROUND];
-		canvas.drawColor(fillColor, PorterDuff.Mode.SRC);
-
-		float heightOffset = mFontLineSpacingAndAscent;
-		for (int row = topRow; row < endRow; row++) {
-			heightOffset += mFontLineSpacing;
-
-			final int cursorX = (row == cursorRow && cursorVisible) ? cursorCol : -1;
-			int selx1 = -1, selx2 = -1;
-			if (row >= selectionY1 && row <= selectionY2) {
-				if (row == selectionY1) selx1 = selectionX1;
-				selx2 = (row == selectionY2) ? selectionX2 : mEmulator.mColumns;
-			}
-
-			TerminalRow lineObject = screen.allocateFullLineIfNecessary(screen.externalToInternalRow(row));
-			final char[] line = lineObject.mText;
-			final int charsUsedInLine = lineObject.getSpaceUsed();
-
-			int lastRunStyle = 0;
-			boolean lastRunInsideCursor = false;
-			int lastRunStartColumn = -1;
-			int lastRunStartIndex = 0;
-			boolean lastRunFontWidthMismatch = false;
-			int currentCharIndex = 0;
-			float measuredWidthForRun = 0.f;
-
-			for (int column = 0; column < columns;) {
-				final char charAtIndex = line[currentCharIndex];
-				final boolean charIsHighsurrogate = Character.isHighSurrogate(charAtIndex);
-				final int charsForCodePoint = charIsHighsurrogate ? 2 : 1;
-				final int codePoint = charIsHighsurrogate ? Character.toCodePoint(charAtIndex, line[currentCharIndex + 1]) : charAtIndex;
-				final int codePointWcWidth = WcWidth.width(codePoint);
-				final boolean insideCursor = (column >= selx1 && column <= selx2) || (cursorX == column || (codePointWcWidth == 2 && cursorX == column + 1));
-				final int style = lineObject.getStyle(column);
-
-				// Check if the measured text width for this code point is not the same as that expected by wcwidth().
-				// This could happen for some fonts which are not truly monospace, or for more exotic characters such as
-				// smileys which android font renders as wide.
-				// If this is detected, we draw this code point scaled to match what wcwidth() expects.
-				final float measuredCodePointWidth = (codePoint < asciiMeasures.length) ? asciiMeasures[codePoint] : mTextPaint.measureText(line,
-						currentCharIndex, charsForCodePoint);
-				final boolean fontWidthMismatch = Math.abs(measuredCodePointWidth / mFontWidth - codePointWcWidth) > 0.01;
-
-				if (style != lastRunStyle || insideCursor != lastRunInsideCursor || fontWidthMismatch || lastRunFontWidthMismatch) {
-					if (column == 0) {
-						// Skip first column as there is nothing to draw, just record the current style.
-					} else {
-						final int columnWidthSinceLastRun = column - lastRunStartColumn;
-						final int charsSinceLastRun = currentCharIndex - lastRunStartIndex;
-						drawTextRun(canvas, line, palette, heightOffset, lastRunStartColumn, columnWidthSinceLastRun, lastRunStartIndex, charsSinceLastRun,
-								measuredWidthForRun, lastRunInsideCursor, lastRunStyle, reverseVideo);
-					}
-					measuredWidthForRun = 0.f;
-					lastRunStyle = style;
-					lastRunInsideCursor = insideCursor;
-					lastRunStartColumn = column;
-					lastRunStartIndex = currentCharIndex;
-					lastRunFontWidthMismatch = fontWidthMismatch;
-				}
-				measuredWidthForRun += measuredCodePointWidth;
-				column += codePointWcWidth;
-				currentCharIndex += charsForCodePoint;
-				while (currentCharIndex < charsUsedInLine && WcWidth.width(line, currentCharIndex) <= 0) {
-					// Eat combining chars so that they are treated as part of the last non-combining code point,
-					// instead of e.g. being considered inside the cursor in the next run.
-					currentCharIndex += Character.isHighSurrogate(line[currentCharIndex]) ? 2 : 1;
-				}
-			}
-
-			final int columnWidthSinceLastRun = columns - lastRunStartColumn;
-			final int charsSinceLastRun = currentCharIndex - lastRunStartIndex;
-			drawTextRun(canvas, line, palette, heightOffset, lastRunStartColumn, columnWidthSinceLastRun, lastRunStartIndex, charsSinceLastRun,
-					measuredWidthForRun, lastRunInsideCursor, lastRunStyle, reverseVideo);
-		}
-	}
-
-	/**
-	 * @param canvas
-	 *            the canvas to render on
-	 * @param palette
-	 *            the color palette to look up colors from textStyle
-	 * @param y
-	 *            height offset into the canvas where to render the line: line * {@link #mFontLineSpacing}
-	 * @param startColumn
-	 *            the run offset in columns
-	 * @param runWidthColumns
-	 *            the run width in columns - this is computed from wcwidth() and may not be what the font measures to
-	 * @param text
-	 *            the java char array to render text from
-	 * @param startCharIndex
-	 *            index into the text array where to start
-	 * @param runWidthChars
-	 *            number of java characters from the text array to render
-	 * @param cursor
-	 *            true if rendering a cursor or selection
-	 * @param textStyle
-	 *            the background, foreground and effect encoded using {@link TextStyle}
-	 * @param reverseVideo
-	 *            if the screen is rendered with the global reverse video flag set
-	 */
-	private void drawTextRun(Canvas canvas, char[] text, int[] palette, float y, int startColumn, int runWidthColumns, int startCharIndex, int runWidthChars,
-			float mes, boolean cursor, int textStyle, boolean reverseVideo) {
-		int foreColor = TextStyle.decodeForeColor(textStyle);
-		int backColor = TextStyle.decodeBackColor(textStyle);
-		final int effect = TextStyle.decodeEffect(textStyle);
-		float left = startColumn * mFontWidth;
-		float right = left + runWidthColumns * mFontWidth;
-
-		mes = mes / mFontWidth;
-		boolean savedMatrix = false;
-		if (Math.abs(mes - runWidthColumns) > 0.01) {
-			canvas.save();
-			canvas.scale(runWidthColumns / mes, 1.f);
-			left *= mes / runWidthColumns;
-			right *= mes / runWidthColumns;
-			savedMatrix = true;
-		}
-
-		// Reverse video here if _one and only one_ of the reverse flags are set:
-		boolean reverseVideoHere = reverseVideo ^ (effect & (TextStyle.CHARACTER_ATTRIBUTE_INVERSE)) != 0;
-		// Switch if _one and only one_ of reverse video and cursor is set:
-		if (reverseVideoHere ^ cursor) {
-			int tmp = foreColor;
-			foreColor = backColor;
-			backColor = tmp;
-		}
-
-		if (backColor != TextStyle.COLOR_INDEX_BACKGROUND) {
-			// Only draw non-default background.
-			mTextPaint.setColor(palette[backColor]);
-			canvas.drawRect(left, y - mFontLineSpacingAndAscent + mFontAscent, right, y, mTextPaint);
-		}
-
-		if ((effect & TextStyle.CHARACTER_ATTRIBUTE_INVISIBLE) == 0) {
-			// Treat blink as bold:
-			final boolean bold = (effect & (TextStyle.CHARACTER_ATTRIBUTE_BOLD | TextStyle.CHARACTER_ATTRIBUTE_BLINK)) != 0;
-			final boolean underline = (effect & TextStyle.CHARACTER_ATTRIBUTE_UNDERLINE) != 0;
-			final boolean italic = (effect & TextStyle.CHARACTER_ATTRIBUTE_ITALIC) != 0;
-			final boolean strikeThrough = (effect & TextStyle.CHARACTER_ATTRIBUTE_STRIKETHROUGH) != 0;
-			final boolean dim = (effect & TextStyle.CHARACTER_ATTRIBUTE_DIM) != 0;
-
-			// Let bold have bright colors if applicable (one of the first 8):
-			final int actualForeColor = foreColor + (bold && foreColor < 8 ? 8 : 0);
-
-			int foreColorARGB = palette[actualForeColor];
-			if (dim) {
-				int red = (0xFF & (foreColorARGB >> 16));
-				int green = (0xFF & (foreColorARGB >> 8));
-				int blue = (0xFF & foreColorARGB);
-				// Dim color handling used by libvte which in turn took it from xterm
-				// (https://bug735245.bugzilla-attachments.gnome.org/attachment.cgi?id=284267):
-				red = red * 2 / 3;
-				green = green * 2 / 3;
-				blue = blue * 2 / 3;
-				foreColorARGB = 0xFF000000 + (red << 16) + (green << 8) + blue;
-			}
-
-			mTextPaint.setFakeBoldText(bold);
-			mTextPaint.setUnderlineText(underline);
-			mTextPaint.setTextSkewX(italic ? -0.35f : 0.f);
-			mTextPaint.setStrikeThruText(strikeThrough);
-			mTextPaint.setColor(foreColorARGB);
-
-			// The text alignment is the default Paint.Align.LEFT.
-			canvas.drawText(text, startCharIndex, runWidthChars, left, y - mFontLineSpacingAndAscent, mTextPaint);
-		}
-
-		if (savedMatrix) canvas.restore();
-	}
-}
--- a/app/src/main/java/com/termux/view/TerminalView.java
+++ b/app/src/main/java/com/termux/view/TerminalView.java
@@ -1,985 +0,0 @@
-package com.termux.view;
-
-import android.annotation.SuppressLint;
-import android.annotation.TargetApi;
-import android.content.ClipData;
-import android.content.ClipboardManager;
-import android.content.Context;
-import android.content.res.TypedArray;
-import android.graphics.Canvas;
-import android.graphics.Rect;
-import android.graphics.Typeface;
-import android.graphics.drawable.BitmapDrawable;
-import android.os.Build;
-import android.text.InputType;
-import android.text.TextUtils;
-import android.util.AttributeSet;
-import android.util.Log;
-import android.view.ActionMode;
-import android.view.HapticFeedbackConstants;
-import android.view.InputDevice;
-import android.view.KeyCharacterMap;
-import android.view.KeyEvent;
-import android.view.Menu;
-import android.view.MenuItem;
-import android.view.MotionEvent;
-import android.view.View;
-import android.view.inputmethod.BaseInputConnection;
-import android.view.inputmethod.EditorInfo;
-import android.view.inputmethod.InputConnection;
-import android.widget.Scroller;
-
-import com.termux.R;
-import com.termux.terminal.EmulatorDebug;
-import com.termux.terminal.KeyHandler;
-import com.termux.terminal.TerminalBuffer;
-import com.termux.terminal.TerminalColors;
-import com.termux.terminal.TerminalEmulator;
-import com.termux.terminal.TerminalSession;
-
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.InputStream;
-import java.util.Properties;
-
-/** View displaying and interacting with a {@link TerminalSession}. */
-public final class TerminalView extends View {
-
-	/** Log view key and IME events. */
-	private static final boolean LOG_KEY_EVENTS = true;
-
-	/** The currently displayed terminal session, whose emulator is {@link #mEmulator}. */
-	TerminalSession mTermSession;
-	/** Our terminal emulator whose session is {@link #mTermSession}. */
-	TerminalEmulator mEmulator;
-
-	TerminalRenderer mRenderer;
-
-	TerminalKeyListener mOnKeyListener;
-
-	/** The top row of text to display. Ranges from -activeTranscriptRows to 0. */
-	int mTopRow;
-
-	/** Keeping track of the special keys acting as Ctrl and Fn for the soft keyboard and other hardware keys. */
-	boolean mVirtualControlKeyDown, mVirtualFnKeyDown;
-
-	boolean mIsSelectingText = false, mIsDraggingLeftSelection, mInitialTextSelection;
-	int mSelX1 = -1, mSelX2 = -1, mSelY1 = -1, mSelY2 = -1;
-	float mSelectionDownX, mSelectionDownY;
-	private ActionMode mActionMode;
-	private BitmapDrawable mLeftSelectionHandle, mRightSelectionHandle;
-
-	float mScaleFactor = 1.f;
-	final GestureAndScaleRecognizer mGestureRecognizer;
-
-	/** Keep track of where mouse touch event started which we report as mouse scroll. */
-	private int mMouseScrollStartX = -1, mMouseScrollStartY = -1;
-	/** Keep track of the time when a touch event leading to sending mouse scroll events started. */
-	private long mMouseStartDownTime = -1;
-
-	final Scroller mScroller;
-
-	/** What was left in from scrolling movement. */
-	float mScrollRemainder;
-
-	/** If non-zero, this is the last unicode code point received if that was a combining character. */
-	int mCombiningAccent;
-
-	public TerminalView(Context context, AttributeSet attributes) { // NO_UCD (unused code)
-		super(context, attributes);
-		mGestureRecognizer = new GestureAndScaleRecognizer(context, new GestureAndScaleRecognizer.Listener() {
-
-			@Override
-			public boolean onUp(MotionEvent e) {
-				mScrollRemainder = 0.0f;
-				if (mEmulator != null && mEmulator.isMouseTrackingActive() && !mIsSelectingText) {
-					// Quick event processing when mouse tracking is active - do not wait for check of double tapping
-					// for zooming.
-					sendMouseEventCode(e, TerminalEmulator.MOUSE_LEFT_BUTTON, true);
-					sendMouseEventCode(e, TerminalEmulator.MOUSE_LEFT_BUTTON, false);
-					return true;
-				}
-				return false;
-			}
-
-			@Override
-			public boolean onSingleTapUp(MotionEvent e) {
-				if (mEmulator == null) return true;
-				if (mIsSelectingText) { toggleSelectingText(null); return true; }
-				requestFocus();
-				if (!mEmulator.isMouseTrackingActive()) {
-					if (!e.isFromSource(InputDevice.SOURCE_MOUSE)) {
-						mOnKeyListener.onSingleTapUp(e);
-						return true;
-					}
-				}
-				return false;
-			}
-
-			@Override
-			public boolean onScroll(MotionEvent e2, float distanceX, float distanceY) {
-				if (mEmulator == null || mIsSelectingText) return true;
-				if (mEmulator.isMouseTrackingActive() && e2.isFromSource(InputDevice.SOURCE_MOUSE)) {
-					// If moving with mouse pointer while pressing button, report that instead of scroll.
-					// This means that we never report moving with button press-events for touch input,
-					// since we cannot just start sending these events without a starting press event,
-					// which we do not do for touch input, only mouse in onTouchEvent().
-					sendMouseEventCode(e2, TerminalEmulator.MOUSE_LEFT_BUTTON_MOVED, true);
-				} else {
-					distanceY += mScrollRemainder;
-					int deltaRows = (int) (distanceY / mRenderer.mFontLineSpacing);
-					mScrollRemainder = distanceY - deltaRows * mRenderer.mFontLineSpacing;
-					doScroll(e2, deltaRows);
-				}
-				return true;
-			}
-
-			@Override
-			public boolean onScale(float focusX, float focusY, float scale) {
-				if (mEmulator == null || mIsSelectingText) return true;
-				mScaleFactor *= scale;
-				mScaleFactor = mOnKeyListener.onScale(mScaleFactor);
-				return true;
-			}
-
-			@Override
-			public boolean onFling(final MotionEvent e2, float velocityX, float velocityY) {
-				if (mEmulator == null || mIsSelectingText) return true;
-				// Do not start scrolling until last fling has been taken care of:
-				if (!mScroller.isFinished()) return true;
-
-				final boolean mouseTrackingAtStartOfFling = mEmulator.isMouseTrackingActive();
-				float SCALE = 0.25f;
-				if (mouseTrackingAtStartOfFling) {
-					mScroller.fling(0, 0, 0, -(int) (velocityY * SCALE), 0, 0, -mEmulator.mRows / 2, mEmulator.mRows / 2);
-				} else {
-					mScroller.fling(0, mTopRow, 0, -(int) (velocityY * SCALE), 0, 0, -mEmulator.getScreen().getActiveTranscriptRows(), 0);
-				}
-
-				post(new Runnable() {
-					private int mLastY = 0;
-
-					@Override
-					public void run() {
-						if (mouseTrackingAtStartOfFling != mEmulator.isMouseTrackingActive()) {
-							mScroller.abortAnimation();
-							return;
-						}
-						if (mScroller.isFinished()) return;
-						boolean more = mScroller.computeScrollOffset();
-						int newY = mScroller.getCurrY();
-						int diff = mouseTrackingAtStartOfFling ? (newY - mLastY) : (newY - mTopRow);
-						doScroll(e2, diff);
-						mLastY = newY;
-						if (more) post(this);
-					}
-				});
-
-				return true;
-			}
-
-			@Override
-			public boolean onDown(float x, float y) {
-				return false;
-			}
-
-			@Override
-			public boolean onDoubleTap(MotionEvent e) {
-				// Do not treat is as a single confirmed tap - it may be followed by zoom.
-				return false;
-			}
-
-			@Override
-			public void onLongPress(MotionEvent e) {
-				if (!mGestureRecognizer.isInProgress() && !mIsSelectingText) {
-					performHapticFeedback(HapticFeedbackConstants.LONG_PRESS);
-					toggleSelectingText(e);
-				}
-			}
-		});
-		mScroller = new Scroller(context);
-	}
-
-	/**
-	 * @param onKeyListener
-	 *            Listener for all kinds of key events, both hardware and IME (which makes it different from that
-	 *            available with {@link View#setOnKeyListener(OnKeyListener)}.
-	 */
-	public void setOnKeyListener(TerminalKeyListener onKeyListener) {
-		this.mOnKeyListener = onKeyListener;
-	}
-
-	/**
-	 * Attach a {@link TerminalSession} to this view.
-	 * 
-	 * @param session
-	 *            The {@link TerminalSession} this view will be displaying.
-	 */
-	public boolean attachSession(TerminalSession session) {
-		if (session == mTermSession) return false;
-		mTopRow = 0;
-
-		mTermSession = session;
-		mEmulator = null;
-		mCombiningAccent = 0;
-
-		updateSize();
-
-		// Wait with enabling the scrollbar until we have a terminal to get scroll position from.
-		setVerticalScrollBarEnabled(true);
-
-		return true;
-	}
-
-	@Override
-	public InputConnection onCreateInputConnection(EditorInfo outAttrs) {
-		// Make the IME run in a limited "generate key events" mode.
-		//
-		// If using just "TYPE_NULL", there is a problem with the "Google Pinyin Input" being in
-		// word mode when used with the "En" tab available when the "Show English keyboard" option
-		// is enabled - see https://github.com/termux/termux-packages/issues/25.
-		//
-		// Adding TYPE_TEXT_FLAG_NO_SUGGESTIONS fixes Pinyin Input, put causes Swype to be put in
-		// word mode... Using TYPE_TEXT_VARIATION_VISIBLE_PASSWORD fixes that.
-		//
-		// So a bit messy. If this gets too messy it's perhaps best resolved by reverting back to just
-		// "TYPE_NULL" and let the Pinyin Input english keyboard be in word mode.
-		outAttrs.inputType = InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS | InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD;
-
-		// Let part of the application show behind when in landscape:
-		outAttrs.imeOptions |= EditorInfo.IME_FLAG_NO_FULLSCREEN;
-
-		return new BaseInputConnection(this, true) {
-
-			@Override
-			public boolean beginBatchEdit() {
-				if (LOG_KEY_EVENTS) Log.i(EmulatorDebug.LOG_TAG, "IME: beginBatchEdit()");
-				return true;
-			}
-
-			@Override
-			public boolean clearMetaKeyStates(int states) {
-				if (LOG_KEY_EVENTS) Log.i(EmulatorDebug.LOG_TAG, "IME: clearMetaKeyStates(" + states + ")");
-				return true;
-			}
-
-			@Override
-			public boolean endBatchEdit() {
-				if (LOG_KEY_EVENTS) Log.i(EmulatorDebug.LOG_TAG, "IME: endBatchEdit()");
-				return false;
-			}
-
-			@Override
-			public boolean finishComposingText() {
-				if (LOG_KEY_EVENTS) Log.i(EmulatorDebug.LOG_TAG, "IME: finishComposingText()");
-				return true;
-			}
-
-			@Override
-			public int getCursorCapsMode(int reqModes) {
-				if (LOG_KEY_EVENTS) Log.i(EmulatorDebug.LOG_TAG, "IME: getCursorCapsMode(" + reqModes + ")");
-				int mode = 0;
-				if ((reqModes & TextUtils.CAP_MODE_CHARACTERS) != 0) {
-					mode |= TextUtils.CAP_MODE_CHARACTERS;
-				}
-				return mode;
-			}
-
-			@Override
-			public CharSequence getTextAfterCursor(int n, int flags) {
-				return "";
-			}
-
-			@Override
-			public CharSequence getTextBeforeCursor(int n, int flags) {
-				return "";
-			}
-
-			@Override
-			public boolean commitText(CharSequence text, int newCursorPosition) {
-				if (LOG_KEY_EVENTS) Log.i(EmulatorDebug.LOG_TAG, "IME: commitText(\"" + text + "\", " + newCursorPosition + ")");
-				if (mEmulator == null) return true;
-				final int textLengthInChars = text.length();
-				for (int i = 0; i < textLengthInChars; i++) {
-					char firstChar = text.charAt(i);
-					int codePoint;
-					if (Character.isHighSurrogate(firstChar)) {
-						if (++i < textLengthInChars) {
-							codePoint = Character.toCodePoint(firstChar, text.charAt(i));
-						} else {
-							// At end of string, with no low surrogate following the high:
-							codePoint = TerminalEmulator.UNICODE_REPLACEMENT_CHAR;
-						}
-					} else {
-						codePoint = firstChar;
-					}
-					inputCodePoint(codePoint, false, false);
-				}
-				return true;
-			}
-
-			@Override
-			public boolean deleteSurroundingText(int leftLength, int rightLength) {
-				if (LOG_KEY_EVENTS) Log.i(EmulatorDebug.LOG_TAG, "IME: deleteSurroundingText(" + leftLength + ", " + rightLength + ")");
-
-				// Swype keyboard sometimes(?) sends this on backspace:
-				if (leftLength == 0 && rightLength == 0) leftLength = 1;
-
-				for (int i = 0; i < leftLength; i++)
-					sendKeyEvent(new KeyEvent(KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DEL));
-				return true;
-			}
-
-		};
-	}
-
-	@Override
-	protected int computeVerticalScrollRange() {
-		return mEmulator == null ? 1 : mEmulator.getScreen().getActiveRows();
-	}
-
-	@Override
-	protected int computeVerticalScrollExtent() {
-		return mEmulator == null ? 1 : mEmulator.mRows;
-	}
-
-	@Override
-	protected int computeVerticalScrollOffset() {
-		return mEmulator == null ? 1 : mEmulator.getScreen().getActiveRows() + mTopRow - mEmulator.mRows;
-	}
-
-	public void onScreenUpdated() {
-		if (mEmulator == null) return;
-
-		boolean skipScrolling = false;
-		if (mIsSelectingText) {
-			// Do not scroll when selecting text.
-			int rowsInHistory = mEmulator.getScreen().getActiveTranscriptRows();
-			int rowShift = mEmulator.getScrollCounter();
-			if (-mTopRow + rowShift > rowsInHistory) {
-				// .. unless we're hitting the end of history transcript, in which
-				// case we abort text selection and scroll to end.
-				toggleSelectingText(null);
-			} else {
-				skipScrolling = true;
-				mTopRow -= rowShift;
-				mSelY1 -= rowShift;
-				mSelY2 -= rowShift;
-			}
-		}
-
-		if (!skipScrolling && mTopRow != 0) {
-			// Scroll down if not already there.
-			if (mTopRow < -3) {
-				// Awaken scroll bars only if scrolling a noticeable amount
-				// - we do not want visible scroll bars during normal typing
-				// of one row at a time.
-				awakenScrollBars();
-			}
-			mTopRow = 0;
-		}
-
-		mEmulator.clearScrollCounter();
-
-		invalidate();
-	}
-
-	/**
-	 * Sets the text size, which in turn sets the number of rows and columns.
-	 * 
-	 * @param textSize
-	 *            the new font size, in density-independent pixels.
-	 */
-	public void setTextSize(int textSize) {
-		mRenderer = new TerminalRenderer(textSize, mRenderer == null ? Typeface.MONOSPACE : mRenderer.mTypeface);
-		updateSize();
-	}
-
-	@Override
-	public boolean onCheckIsTextEditor() {
-		return true;
-	}
-
-	@Override
-	public boolean isOpaque() {
-		return true;
-	}
-
-	/** Send a single mouse event code to the terminal. */
-	void sendMouseEventCode(MotionEvent e, int button, boolean pressed) {
-		int x = (int) (e.getX() / mRenderer.mFontWidth) + 1;
-		int y = (int) ((e.getY() - mRenderer.mFontLineSpacingAndAscent) / mRenderer.mFontLineSpacing) + 1;
-		if (pressed && (button == TerminalEmulator.MOUSE_WHEELDOWN_BUTTON || button == TerminalEmulator.MOUSE_WHEELUP_BUTTON)) {
-			if (mMouseStartDownTime == e.getDownTime()) {
-				x = mMouseScrollStartX;
-				y = mMouseScrollStartY;
-			} else {
-				mMouseStartDownTime = e.getDownTime();
-				mMouseScrollStartX = x;
-				mMouseScrollStartY = y;
-			}
-		}
-		mEmulator.sendMouseEvent(button, x, y, pressed);
-	}
-
-	/** Perform a scroll, either from dragging the screen or by scrolling a mouse wheel. */
-	void doScroll(MotionEvent event, int rowsDown) {
-		boolean up = rowsDown < 0;
-		int amount = Math.abs(rowsDown);
-		for (int i = 0; i < amount; i++) {
-			if (mEmulator.isMouseTrackingActive()) {
-				sendMouseEventCode(event, up ? TerminalEmulator.MOUSE_WHEELUP_BUTTON : TerminalEmulator.MOUSE_WHEELDOWN_BUTTON, true);
-			} else if (mEmulator.isAlternateBufferActive()) {
-				// Send up and down key events for scrolling, which is what some terminals do to make scroll work in
-				// e.g. less, which shifts to the alt screen without mouse handling.
-				handleKeyCode(up ? KeyEvent.KEYCODE_DPAD_UP : KeyEvent.KEYCODE_DPAD_DOWN, 0);
-			} else {
-				mTopRow = Math.min(0, Math.max(-(mEmulator.getScreen().getActiveTranscriptRows()), mTopRow + (up ? -1 : 1)));
-				if (!awakenScrollBars()) invalidate();
-			}
-		}
-	}
-
-	/** Overriding {@link View#onGenericMotionEvent(MotionEvent)}. */
-	@Override
-	public boolean onGenericMotionEvent(MotionEvent event) {
-		if (mEmulator != null && event.isFromSource(InputDevice.SOURCE_MOUSE) && event.getAction() == MotionEvent.ACTION_SCROLL) {
-			// Handle mouse wheel scrolling.
-			boolean up = event.getAxisValue(MotionEvent.AXIS_VSCROLL) > 0.0f;
-			doScroll(event, up ? -3 : 3);
-			return true;
-		}
-		return false;
-	}
-
-	@SuppressLint("ClickableViewAccessibility")
-	@Override
-	@TargetApi(23)
-	public boolean onTouchEvent(MotionEvent ev) {
-		if (mEmulator == null) return true;
-		final int action = ev.getAction();
-
-		if (mIsSelectingText) {
-			int cy = (int) (ev.getY() / mRenderer.mFontLineSpacing) + mTopRow;
-			int cx = (int) (ev.getX() / mRenderer.mFontWidth);
-
-			switch (action) {
-			case MotionEvent.ACTION_UP:
-				mInitialTextSelection = false;
-				break;
-			case MotionEvent.ACTION_DOWN:
-				int distanceFromSel1 = Math.abs(cx-mSelX1) + Math.abs(cy-mSelY1);
-				int distanceFromSel2 = Math.abs(cx-mSelX2) + Math.abs(cy-mSelY2);
-				mIsDraggingLeftSelection = distanceFromSel1 <= distanceFromSel2;
-				mSelectionDownX = ev.getX();
-				mSelectionDownY = ev.getY();
-				break;
-			case MotionEvent.ACTION_MOVE:
-				if (mInitialTextSelection) break;
-				float deltaX = ev.getX() - mSelectionDownX;
-				float deltaY = ev.getY() - mSelectionDownY;
-				int deltaCols = (int) Math.ceil(deltaX / mRenderer.mFontWidth);
-				int deltaRows = (int) Math.ceil(deltaY / mRenderer.mFontLineSpacing);
-				mSelectionDownX += deltaCols * mRenderer.mFontWidth;
-				mSelectionDownY += deltaRows * mRenderer.mFontLineSpacing;
-				if (mIsDraggingLeftSelection) {
-					mSelX1 += deltaCols;
-					mSelY1 += deltaRows;
-				} else {
-					mSelX2 += deltaCols;
-					mSelY2 += deltaRows;
-				}
-
-				mSelX1 = Math.min(mEmulator.mColumns, Math.max(0, mSelX1));
-				mSelX2 = Math.min(mEmulator.mColumns, Math.max(0, mSelX2));
-
-				if (mSelY1 == mSelY2 && mSelX1 > mSelX2 || mSelY1 > mSelY2) {
-					// Switch handles.
-					mIsDraggingLeftSelection = !mIsDraggingLeftSelection;
-					int tmpX1 = mSelX1, tmpY1 = mSelY1;
-					mSelX1 = mSelX2; mSelY1 = mSelY2;
-					mSelX2 = tmpX1; mSelY2 = tmpY1;
-				}
-
-				if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) mActionMode.invalidateContentRect();
-				invalidate();
-				break;
-			default:
-				break;
-			}
-			mGestureRecognizer.onTouchEvent(ev);
-			return true;
-		} else if (ev.isFromSource(InputDevice.SOURCE_MOUSE)) {
-			if (ev.isButtonPressed(MotionEvent.BUTTON_SECONDARY)) {
-				if (action == MotionEvent.ACTION_DOWN) showContextMenu();
-				return true;
-			} else if (ev.isButtonPressed(MotionEvent.BUTTON_TERTIARY)) {
-				ClipboardManager clipboard = (ClipboardManager) getContext().getSystemService(Context.CLIPBOARD_SERVICE);
-				ClipData clipData = clipboard.getPrimaryClip();
-				if (clipData != null) {
-					CharSequence paste = clipData.getItemAt(0).coerceToText(getContext());
-					if (!TextUtils.isEmpty(paste)) mEmulator.paste(paste.toString());
-				}
-			} else if (mEmulator.isMouseTrackingActive()) { // BUTTON_PRIMARY.
-				switch (ev.getAction()) {
-					case MotionEvent.ACTION_DOWN:
-					case MotionEvent.ACTION_UP:
-						sendMouseEventCode(ev, TerminalEmulator.MOUSE_LEFT_BUTTON, ev.getAction() == MotionEvent.ACTION_DOWN);
-						break;
-					case MotionEvent.ACTION_MOVE:
-						sendMouseEventCode(ev, TerminalEmulator.MOUSE_LEFT_BUTTON_MOVED, true);
-						break;
-				}
-				return true;
-			}
-		}
-
-		mGestureRecognizer.onTouchEvent(ev);
-		return true;
-	}
-
-	@Override
-	public boolean onKeyPreIme(int keyCode, KeyEvent event) {
-		if (LOG_KEY_EVENTS) Log.i(EmulatorDebug.LOG_TAG, "onKeyPreIme(keyCode=" + keyCode + ", event=" + event + ")");
-		if (keyCode == KeyEvent.KEYCODE_BACK) {
-			if (mIsSelectingText) {
-				toggleSelectingText(null);
-				return true;
-			} else if (mOnKeyListener.shouldBackButtonBeMappedToEscape()) {
-				// Intercept back button to treat it as escape:
-				switch (event.getAction()) {
-					case KeyEvent.ACTION_DOWN:
-						return onKeyDown(keyCode, event);
-					case KeyEvent.ACTION_UP:
-						return onKeyUp(keyCode, event);
-				}
-			}
-		}
-		return super.onKeyPreIme(keyCode, event);
-	}
-
-	@Override
-	public boolean onKeyDown(int keyCode, KeyEvent event) {
-		if (LOG_KEY_EVENTS) Log.i(EmulatorDebug.LOG_TAG, "onKeyDown(keyCode=" + keyCode + ", isSystem()=" + event.isSystem() + ", event=" + event + ")");
-		if (mEmulator == null) return true;
-
-		int metaState = event.getMetaState();
-		boolean controlDownFromEvent = event.isCtrlPressed();
-		boolean leftAltDownFromEvent = (metaState & KeyEvent.META_ALT_LEFT_ON) != 0;
-		boolean rightAltDownFromEvent = (metaState & KeyEvent.META_ALT_RIGHT_ON) != 0;
-
-		if (handleVirtualKeys(keyCode, event, true)) {
-			invalidate();
-			return true;
-		} else if (event.isSystem() && (!mOnKeyListener.shouldBackButtonBeMappedToEscape() || keyCode != KeyEvent.KEYCODE_BACK)) {
-			return super.onKeyDown(keyCode, event);
-		}
-
-		int keyMod = 0;
-		if (controlDownFromEvent) keyMod |= KeyHandler.KEYMOD_CTRL;
-		if (event.isAltPressed()) keyMod |= KeyHandler.KEYMOD_ALT;
-		if (event.isShiftPressed()) keyMod |= KeyHandler.KEYMOD_SHIFT;
-		if (handleKeyCode(keyCode, keyMod)) {
-			if (LOG_KEY_EVENTS) Log.i(EmulatorDebug.LOG_TAG, "handleKeyCode() took key event");
-			return true;
-		}
-
-		// Clear Ctrl since we handle that ourselves:
-		int bitsToClear = KeyEvent.META_CTRL_MASK;
-		if (rightAltDownFromEvent) {
-			// Let right Alt/Alt Gr be used to compose characters.
-		} else {
-			// Use left alt to send to terminal (e.g. Left Alt+B to jump back a word), so remove:
-			bitsToClear |= KeyEvent.META_ALT_ON | KeyEvent.META_ALT_LEFT_ON;
-		}
-		int effectiveMetaState = event.getMetaState() & ~bitsToClear;
-
-		int result = event.getUnicodeChar(effectiveMetaState);
-		if (LOG_KEY_EVENTS) Log.i(EmulatorDebug.LOG_TAG, "KeyEvent#getUnicodeChar(" + effectiveMetaState + ") returned: " + result);
-		if (result == 0) {
-			return true;
-		}
-
-		int oldCombiningAccent = mCombiningAccent;
-		if ((result & KeyCharacterMap.COMBINING_ACCENT) != 0) {
-			// If entered combining accent previously, write it out:
-			if (mCombiningAccent != 0) inputCodePoint(mCombiningAccent, controlDownFromEvent, leftAltDownFromEvent);
-			mCombiningAccent = result & KeyCharacterMap.COMBINING_ACCENT_MASK;
-		} else {
-			if (mCombiningAccent != 0) {
-				int combinedChar = KeyCharacterMap.getDeadChar(mCombiningAccent, result);
-				if (combinedChar > 0) result = combinedChar;
-				mCombiningAccent = 0;
-			}
-			inputCodePoint(result, controlDownFromEvent, leftAltDownFromEvent);
-		}
-
-		if (mCombiningAccent != oldCombiningAccent) invalidate();
-
-		return true;
-	}
-
-	void inputCodePoint(int codePoint, boolean controlDownFromEvent, boolean leftAltDownFromEvent) {
-		if (LOG_KEY_EVENTS) {
-			Log.i(EmulatorDebug.LOG_TAG, "inputCodePoint(codePoint=" + codePoint + ", controlDownFromEvent=" + controlDownFromEvent + ", leftAltDownFromEvent="
-					+ leftAltDownFromEvent + ")");
-		}
-
-		int resultingKeyCode = -1; // Set if virtual key causes this to be translated to key event.
-		if (controlDownFromEvent || mVirtualControlKeyDown) {
-			if (codePoint >= 'a' && codePoint <= 'z') {
-				codePoint = codePoint - 'a' + 1;
-			} else if (codePoint >= 'A' && codePoint <= 'Z') {
-				codePoint = codePoint - 'A' + 1;
-			} else if (codePoint == ' ' || codePoint == '2') {
-				codePoint = 0;
-			} else if (codePoint == '[' || codePoint == '3') {
-				codePoint = 27; // ^[ (Esc)
-			} else if (codePoint == '\\' || codePoint == '4') {
-				codePoint = 28;
-			} else if (codePoint == ']' || codePoint == '5') {
-				codePoint = 29;
-			} else if (codePoint == '^' || codePoint == '6') {
-				codePoint = 30; // control-^
-			} else if (codePoint == '_' || codePoint == '7') {
-				codePoint = 31;
-			} else if (codePoint == '8') {
-				codePoint = 127; // DEL
-			} else if (codePoint == '9') {
-				resultingKeyCode = KeyEvent.KEYCODE_F11;
-			} else if (codePoint == '0') {
-				resultingKeyCode = KeyEvent.KEYCODE_F12;
-			}
-		} else if (mVirtualFnKeyDown) {
-			if (codePoint == 'w' || codePoint == 'W') {
-				resultingKeyCode = KeyEvent.KEYCODE_DPAD_UP;
-			} else if (codePoint == 'a' || codePoint == 'A') {
-				resultingKeyCode = KeyEvent.KEYCODE_DPAD_LEFT;
-			} else if (codePoint == 's' || codePoint == 'S') {
-				resultingKeyCode = KeyEvent.KEYCODE_DPAD_DOWN;
-			} else if (codePoint == 'd' || codePoint == 'D') {
-				resultingKeyCode = KeyEvent.KEYCODE_DPAD_RIGHT;
-			} else if (codePoint == 'p' || codePoint == 'P') {
-				resultingKeyCode = KeyEvent.KEYCODE_PAGE_UP;
-			} else if (codePoint == 'n' || codePoint == 'N') {
-				resultingKeyCode = KeyEvent.KEYCODE_PAGE_DOWN;
-			} else if (codePoint == 't' || codePoint == 'T') {
-				resultingKeyCode = KeyEvent.KEYCODE_TAB;
-			} else if (codePoint == 'l' || codePoint == 'L') {
-				codePoint = '|';
-			} else if (codePoint == 'u' || codePoint == 'U') {
-				codePoint = '_';
-			} else if (codePoint == 'e' || codePoint == 'E') {
-				codePoint = 27; // ^[ (Esc)
-			} else if (codePoint == '.') {
-				codePoint = 28; // ^\
-			} else if (codePoint > '0' && codePoint <= '9') {
-				// F1-F9
-				resultingKeyCode = (codePoint - '1') + KeyEvent.KEYCODE_F1;
-			} else if (codePoint == '0') {
-				resultingKeyCode = KeyEvent.KEYCODE_F10;
-			} else if (codePoint == 'i' || codePoint == 'I') {
-				resultingKeyCode = KeyEvent.KEYCODE_INSERT;
-			} else if (codePoint == 'x' || codePoint == 'X') {
-				resultingKeyCode = KeyEvent.KEYCODE_FORWARD_DEL;
-			} else if (codePoint == 'h' || codePoint == 'H') {
-				resultingKeyCode = KeyEvent.KEYCODE_MOVE_HOME;
-			} else if (codePoint == 'f' || codePoint == 'F') {
-				// As left alt+f, jumping forward in readline:
-				codePoint = 'f';
-				leftAltDownFromEvent = true;
-			} else if (codePoint == 'b' || codePoint == 'B') {
-				// As left alt+b, jumping forward in readline:
-				codePoint = 'b';
-				leftAltDownFromEvent = true;
-			}
-		}
-
-		if (codePoint > -1) {
-			if (resultingKeyCode > -1) {
-				handleKeyCode(resultingKeyCode, 0);
-			} else {
-				// Work around bluetooth keyboards sending funny unicode characters instead
-				// of the more normal ones from ASCII that terminal programs expect - the
-				// desire to input the original characters should be low.
-				switch (codePoint) {
-					case 0x02DC: // SMALL TILDE.
-						codePoint = 0x007E; // TILDE (~).
-						break;
-					case 0x02CB: // MODIFIER LETTER GRAVE ACCENT.
-						codePoint = 0x0060; // GRAVE ACCENT (`).
-						break;
-					case 0x02C6: // MODIFIER LETTER CIRCUMFLEX ACCENT.
-						codePoint = 0x005E; // CIRCUMFLEX ACCENT (^).
-						break;
-				}
-
-				// If left alt, send escape before the code point to make e.g. Alt+B and Alt+F work in readline:
-				mTermSession.writeCodePoint(leftAltDownFromEvent, codePoint);
-			}
-		}
-	}
-
-	/** Input the specified keyCode if applicable and return if the input was consumed. */
-	public boolean handleKeyCode(int keyCode, int keyMod) {
-		TerminalEmulator term = mTermSession.getEmulator();
-		String code = KeyHandler.getCode(keyCode, keyMod, term.isCursorKeysApplicationMode(), term.isKeypadApplicationMode());
-		if (code == null) return false;
-		mTermSession.write(code);
-		return true;
-	}
-
-	/**
-	 * Called when a key is released in the view.
-	 * 
-	 * @param keyCode
-	 *            The keycode of the key which was released.
-	 * @param event
-	 *            A {@link KeyEvent} describing the event.
-	 * @return Whether the event was handled.
-	 */
-	@Override
-	public boolean onKeyUp(int keyCode, KeyEvent event) {
-		if (LOG_KEY_EVENTS) Log.i(EmulatorDebug.LOG_TAG, "onKeyUp(keyCode=" + keyCode + ", event=" + event + ")");
-		if (mEmulator == null) return true;
-
-		if (handleVirtualKeys(keyCode, event, false)) {
-			invalidate();
-			return true;
-		} else if (event.isSystem()) {
-			// Let system key events through.
-			return super.onKeyUp(keyCode, event);
-		}
-
-		return true;
-	}
-
-	/** Handle dedicated volume buttons as virtual keys if applicable. */
-	private boolean handleVirtualKeys(int keyCode, KeyEvent event, boolean down) {
-		InputDevice inputDevice = event.getDevice();
-		if (inputDevice != null && inputDevice.getKeyboardType() == InputDevice.KEYBOARD_TYPE_ALPHABETIC) {
-			// Do not steal dedicated buttons from a full external keyboard.
-			return false;
-		} else if (keyCode == KeyEvent.KEYCODE_VOLUME_DOWN) {
-			if (LOG_KEY_EVENTS) Log.i(EmulatorDebug.LOG_TAG, "handleVirtualKeys(down=" + down + ") taking ctrl event");
-			mVirtualControlKeyDown = down;
-			return true;
-		} else if (keyCode == KeyEvent.KEYCODE_VOLUME_UP) {
-			if (LOG_KEY_EVENTS) Log.i(EmulatorDebug.LOG_TAG, "handleVirtualKeys(down=" + down + ") taking Fn event");
-			mVirtualFnKeyDown = down;
-			return true;
-		}
-		return false;
-	}
-
-	public void checkForFontAndColors() {
-		try {
-			File fontFile = new File("/data/data/com.termux/files/home/.termux/font.ttf");
-			File colorsFile = new File("/data/data/com.termux/files/home/.termux/colors.properties");
-
-			final Properties props = new Properties();
-			if (colorsFile.isFile()) {
-				try (InputStream in = new FileInputStream(colorsFile)) {
-					props.load(in);
-				}
-			}
-			TerminalColors.COLOR_SCHEME.updateWith(props);
-			if (mEmulator != null) mEmulator.mColors.reset();
-
-			final Typeface newTypeface = fontFile.exists() ? Typeface.createFromFile(fontFile) : Typeface.MONOSPACE;
-			mRenderer = new TerminalRenderer(mRenderer.mTextSize, newTypeface);
-			updateSize();
-
-			invalidate();
-		} catch (Exception e) {
-			Log.e(EmulatorDebug.LOG_TAG, "Error in checkForFontAndColors()", e);
-		}
-	}
-
-	/**
-	 * This is called during layout when the size of this view has changed. If you were just added to the view
-	 * hierarchy, you're called with the old values of 0.
-	 */
-	@Override
-	protected void onSizeChanged(int w, int h, int oldw, int oldh) {
-		updateSize();
-	}
-
-	/** Check if the terminal size in rows and columns should be updated. */
-	public void updateSize() {
-		int viewWidth = getWidth();
-		int viewHeight = getHeight();
-		if (viewWidth == 0 || viewHeight == 0 || mTermSession == null) return;
-
-		// Set to 80 and 24 if you want to enable vttest.
-		int newColumns = Math.max(8, (int) (viewWidth / mRenderer.mFontWidth));
-		int newRows = Math.max(8, (viewHeight - mRenderer.mFontLineSpacingAndAscent) / mRenderer.mFontLineSpacing);
-
-		if (mEmulator == null || (newColumns != mEmulator.mColumns || newRows != mEmulator.mRows)) {
-			mTermSession.updateSize(newColumns, newRows);
-			mEmulator = mTermSession.getEmulator();
-
-			mTopRow = 0;
-			scrollTo(0, 0);
-			invalidate();
-		}
-	}
-
-	@Override
-	protected void onDraw(Canvas canvas) {
-		if (mEmulator == null) {
-			canvas.drawColor(0XFF000000);
-		} else {
-			mRenderer.render(mEmulator, canvas, mTopRow, mSelY1, mSelY2, mSelX1, mSelX2);
-
-			if (mIsSelectingText) {
-				final int gripHandleWidth = mLeftSelectionHandle.getIntrinsicWidth();
-				final int gripHandleMargin = gripHandleWidth / 4; // See the png.
-
-				int right = Math.round((mSelX1) * mRenderer.mFontWidth) + gripHandleMargin;
-				int top = (mSelY1+1 - mTopRow)*mRenderer.mFontLineSpacing + mRenderer.mFontLineSpacingAndAscent;
-				mLeftSelectionHandle.setBounds(right - gripHandleWidth, top, right, top + mLeftSelectionHandle.getIntrinsicHeight());
-				mLeftSelectionHandle.draw(canvas);
-
-				int left = Math.round((mSelX2+1)*mRenderer.mFontWidth) - gripHandleMargin;
-				top = (mSelY2+1 - mTopRow) *mRenderer.mFontLineSpacing + mRenderer.mFontLineSpacingAndAscent;
-				mRightSelectionHandle.setBounds(left, top, left + gripHandleWidth, top + mRightSelectionHandle.getIntrinsicHeight());
-				mRightSelectionHandle.draw(canvas);
-			}
-		}
-	}
-
-	/** Toggle text selection mode in the view. */
-	@TargetApi(23)
-	public void toggleSelectingText(MotionEvent ev) {
-		mIsSelectingText = !mIsSelectingText;
-		mOnKeyListener.copyModeChanged(mIsSelectingText);
-
-		if (mIsSelectingText) {
-			if (mLeftSelectionHandle == null) {
-				mLeftSelectionHandle = (BitmapDrawable) getContext().getDrawable(R.drawable.text_select_handle_left_material);
-				mRightSelectionHandle = (BitmapDrawable) getContext().getDrawable(R.drawable.text_select_handle_right_material);
-			}
-
-			int cx = (int) (ev.getX() / mRenderer.mFontWidth);
-			final boolean eventFromMouse = ev.isFromSource(InputDevice.SOURCE_MOUSE);
-			// Offset for finger:
-			final int SELECT_TEXT_OFFSET_Y = eventFromMouse ? 0 : -40;
-			int cy = (int) ((ev.getY() + SELECT_TEXT_OFFSET_Y) / mRenderer.mFontLineSpacing) + mTopRow;
-
-			mSelX1 = mSelX2 = cx;
-			mSelY1 = mSelY2 = cy;
-
-			TerminalBuffer screen = mEmulator.getScreen();
-			if (!" ".equals(screen.getSelectedText(mSelX1, mSelY1, mSelX1, mSelY1))) {
-				// Selecting something other than whitespace. Expand to word.
-				while (mSelX1 > 0 && !"".equals(screen.getSelectedText(mSelX1-1, mSelY1, mSelX1-1, mSelY1))) {
-					mSelX1--;
-				}
-				while (mSelX2 < mEmulator.mColumns-1 && !"".equals(screen.getSelectedText(mSelX2+1, mSelY1, mSelX2+1, mSelY1))) {
-					mSelX2++;
-				}
-			}
-
-			mInitialTextSelection = true;
-			mIsDraggingLeftSelection = true;
-			mSelectionDownX = ev.getX();
-			mSelectionDownY = ev.getY();
-
-			final ActionMode.Callback callback = new ActionMode.Callback() {
-				@Override
-				public boolean onCreateActionMode(ActionMode mode, Menu menu) {
-					final int[] ACTION_MODE_ATTRS = { android.R.attr.actionModeCopyDrawable, android.R.attr.actionModePasteDrawable, };
-					TypedArray styledAttributes = getContext().obtainStyledAttributes(ACTION_MODE_ATTRS);
-					int show = MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT;
-
-					ClipboardManager clipboard = (ClipboardManager) getContext().getSystemService(Context.CLIPBOARD_SERVICE);
-					menu.add(Menu.NONE, 1, Menu.NONE, R.string.copy_text).setIcon(styledAttributes.getResourceId(0, 0)).setShowAsAction(show);
-					menu.add(Menu.NONE, 2, Menu.NONE, R.string.paste_text).setIcon(styledAttributes.getResourceId(1, 0)).setEnabled(clipboard.hasPrimaryClip()).setShowAsAction(show);
-					menu.add(Menu.NONE, 3, Menu.NONE, R.string.text_selection_more);
-					return true;
-				}
-
-				@Override
-				public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
-					return false;
-				}
-
-				@Override
-				public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
-					switch (item.getItemId()) {
-						case 1:
-							String selectedText = mEmulator.getSelectedText(mSelX1, mSelY1, mSelX2, mSelY2).trim();
-							mTermSession.clipboardText(selectedText);
-							break;
-						case 2:
-							ClipboardManager clipboard = (ClipboardManager) getContext().getSystemService(Context.CLIPBOARD_SERVICE);
-							ClipData clipData = clipboard.getPrimaryClip();
-							if (clipData != null) {
-								CharSequence paste = clipData.getItemAt(0).coerceToText(getContext());
-								if (!TextUtils.isEmpty(paste)) mEmulator.paste(paste.toString());
-							}
-							break;
-						case 3:
-							showContextMenu();
-							break;
-					}
-					toggleSelectingText(null);
-					return true;
-				}
-
-				@Override
-				public void onDestroyActionMode(ActionMode mode) {
-				}
-
-			};
-
-			if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
-				mActionMode = startActionMode(new ActionMode.Callback2() {
-					@Override
-					public boolean onCreateActionMode(ActionMode mode, Menu menu) {
-						return callback.onCreateActionMode(mode, menu);
-					}
-
-					@Override
-					public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
-						return false;
-					}
-
-					@Override
-					public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
-						return callback.onActionItemClicked(mode, item);
-					}
-
-					@Override
-					public void onDestroyActionMode(ActionMode mode) {
-						// Ignore.
-					}
-
-					@Override
-					public void onGetContentRect(ActionMode mode, View view, Rect outRect) {
-						int x1 = Math.round(mSelX1 * mRenderer.mFontWidth);
-						int x2 = Math.round(mSelX2 * mRenderer.mFontWidth);
-						int y1 = Math.round((mSelY1 - mTopRow) * mRenderer.mFontLineSpacing);
-						int y2 = Math.round((mSelY2 + 1 - mTopRow) * mRenderer.mFontLineSpacing);
-						outRect.set(Math.min(x1, x2), y1, Math.max(x1, x2), y2);
-					}
-				}, ActionMode.TYPE_FLOATING);
-			} else {
-				mActionMode = startActionMode(callback);
-			}
-
-
-			invalidate();
-		} else {
-			mActionMode.finish();
-			mSelX1 = mSelY1 = mSelX2 = mSelY2 = -1;
-			invalidate();
-		}
-	}
-
-	public TerminalSession getCurrentSession() {
-		return mTermSession;
-	}
-
-}
--- a/app/src/main/jni/Application.mk
+++ b/app/src/main/jni/Application.mk
@@ -1,5 +0,0 @@
-APP_ABI := armeabi-v7a x86
-APP_PLATFORM := android-21
-NDK_TOOLCHAIN_VERSION := 4.9
-APP_CFLAGS := -std=c11 -Wall -Wextra -Os -fno-stack-protector
-APP_LDFLAGS = -nostdlib -Wl,--gc-sections
--- a/app/src/main/jni/termux.c
+++ b/app/src/main/jni/termux.c
@@ -1,203 +0,0 @@
-#include <dirent.h>
-#include <fcntl.h>
-#include <jni.h>
-#include <signal.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/ioctl.h>
-#include <sys/wait.h>
-#include <termios.h>
-#include <unistd.h>
-
-#define TERMUX_UNUSED(x) x __attribute__((__unused__))
-#ifdef __APPLE__
-# define LACKS_PTSNAME_R
-#endif
-
-static int throw_runtime_exception(JNIEnv* env, char const* message)
-{
-        jclass exClass = (*env)->FindClass(env, "java/lang/RuntimeException");
-        (*env)->ThrowNew(env, exClass, message);
-        return -1;
-}
-
-static int create_subprocess(JNIEnv* env, char const* cmd, char const* cwd, char* const argv[], char** envp, int* pProcessId)
-{
-        int ptm = open("/dev/ptmx", O_RDWR | O_CLOEXEC);
-        if (ptm < 0) return throw_runtime_exception(env, "Cannot open /dev/ptmx");
-
-#ifdef LACKS_PTSNAME_R
-        char* devname;
-#else
-        char devname[64];
-#endif
-        if (grantpt(ptm) || unlockpt(ptm) ||
-#ifdef LACKS_PTSNAME_R
-			(devname = ptsname(ptm)) == NULL
-#else
-			ptsname_r(ptm, devname, sizeof(devname))
-#endif
-			) {
-                return throw_runtime_exception(env, "Cannot grantpt()/unlockpt()/ptsname_r() on /dev/ptmx");
-        }
-
-        // Enable UTF-8 mode and disable flow control to prevent Ctrl+S from locking up the display.
-        struct termios tios;
-        tcgetattr(ptm, &tios);
-        tios.c_iflag |= IUTF8;
-        tios.c_iflag &= ~(IXON | IXOFF);
-        tcsetattr(ptm, TCSANOW, &tios);
-
-		/** Set initial winsize (better too small than too large). */
-        struct winsize sz = { .ws_row = 20, .ws_col = 20 };
-        ioctl(ptm, TIOCSWINSZ, &sz);
-
-        pid_t pid = fork();
-        if (pid < 0) {
-                return throw_runtime_exception(env, "Fork failed");
-        } else if (pid > 0) {
-                *pProcessId = (int) pid;
-                return ptm;
-        } else {
-		// Clear signals which the Android java process may have blocked:
-		sigset_t signals_to_unblock;
-		sigfillset(&signals_to_unblock);
-		sigprocmask(SIG_UNBLOCK, &signals_to_unblock, 0);
-
-                close(ptm);
-                setsid();
-
-                int pts = open(devname, O_RDWR);
-                if (pts < 0) exit(-1);
-
-                dup2(pts, 0);
-                dup2(pts, 1);
-                dup2(pts, 2);
-
-                DIR* self_dir = opendir("/proc/self/fd");
-                if (self_dir != NULL) {
-                        int self_dir_fd = dirfd(self_dir);
-                        struct dirent* entry;
-                        while ((entry = readdir(self_dir)) != NULL) {
-                                int fd = atoi(entry->d_name);
-                                if(fd > 2 && fd != self_dir_fd) close(fd);
-                        }
-                        closedir(self_dir);
-                }
-
-		clearenv();
-                if (envp) for (; *envp; ++envp) putenv(*envp);
-
-                if (chdir(cwd) != 0) {
-                        char* error_message;
-                        // No need to free asprintf()-allocated memory since doing execvp() or exit() below.
-                        if (asprintf(&error_message, "chdir(\"%s\")", cwd) == -1) error_message = "chdir()";
-                        perror(error_message);
-                        fflush(stderr);
-                }
-                execvp(cmd, argv);
-                // Show terminal output about failing exec() call:
-		char* error_message;
-		if (asprintf(&error_message, "exec(\"%s\")", cmd) == -1) error_message = "exec()";
-                perror(error_message);
-                _exit(1);
-        }
-}
-
-JNIEXPORT jint JNICALL Java_com_termux_terminal_JNI_createSubprocess(JNIEnv* env, jclass TERMUX_UNUSED(clazz), jstring cmd, jstring cwd, jobjectArray args, jobjectArray envVars, jintArray processIdArray)
-{
-        jsize size = args ? (*env)->GetArrayLength(env, args) : 0;
-        char** argv = NULL;
-        if (size > 0) {
-                argv = (char**) malloc((size + 1) * sizeof(char*));
-                if (!argv) return throw_runtime_exception(env, "Couldn't allocate argv array");
-                for (int i = 0; i < size; ++i) {
-                        jstring arg_java_string = (jstring) (*env)->GetObjectArrayElement(env, args, i);
-                        char const* arg_utf8 = (*env)->GetStringUTFChars(env, arg_java_string, NULL);
-                        if (!arg_utf8) return throw_runtime_exception(env, "GetStringUTFChars() failed for argv");
-                        argv[i] = strdup(arg_utf8);
-                        (*env)->ReleaseStringUTFChars(env, arg_java_string, arg_utf8);
-                }
-                argv[size] = NULL;
-        }
-
-        size = envVars ? (*env)->GetArrayLength(env, envVars) : 0;
-        char** envp = NULL;
-        if (size > 0) {
-                envp = (char**) malloc((size + 1) * sizeof(char *));
-                if (!envp) return throw_runtime_exception(env, "malloc() for envp array failed");
-                for (int i = 0; i < size; ++i) {
-                        jstring env_java_string = (jstring) (*env)->GetObjectArrayElement(env, envVars, i);
-                        char const* env_utf8 = (*env)->GetStringUTFChars(env, env_java_string, 0);
-                        if (!env_utf8) return throw_runtime_exception(env, "GetStringUTFChars() failed for env");
-                        envp[i] = strdup(env_utf8);
-                        (*env)->ReleaseStringUTFChars(env, env_java_string, env_utf8);
-                }
-                envp[size] = NULL;
-        }
-
-        int procId = 0;
-	char const* cmd_cwd = (*env)->GetStringUTFChars(env, cwd, NULL);
-        char const* cmd_utf8 = (*env)->GetStringUTFChars(env, cmd, NULL);
-        int ptm = create_subprocess(env, cmd_utf8, cmd_cwd, argv, envp, &procId);
-        (*env)->ReleaseStringUTFChars(env, cmd, cmd_utf8);
-        (*env)->ReleaseStringUTFChars(env, cmd, cmd_cwd);
-
-        if (argv) {
-                for (char** tmp = argv; *tmp; ++tmp) free(*tmp);
-                free(argv);
-        }
-        if (envp) {
-                for (char** tmp = envp; *tmp; ++tmp) free(*tmp);
-                free(envp);
-        }
-
-        int* pProcId = (int*) (*env)->GetPrimitiveArrayCritical(env, processIdArray, NULL);
-        if (!pProcId) return throw_runtime_exception(env, "JNI call GetPrimitiveArrayCritical(processIdArray, &isCopy) failed");
-
-        *pProcId = procId;
-        (*env)->ReleasePrimitiveArrayCritical(env, processIdArray, pProcId, 0);
-
-        return ptm;
-}
-
-JNIEXPORT void JNICALL Java_com_termux_terminal_JNI_setPtyWindowSize(JNIEnv* TERMUX_UNUSED(env), jclass TERMUX_UNUSED(clazz), jint fd, jint rows, jint cols)
-{
-        struct winsize sz = { .ws_row = rows, .ws_col = cols };
-        ioctl(fd, TIOCSWINSZ, &sz);
-}
-
-JNIEXPORT void JNICALL Java_com_termux_terminal_JNI_setPtyUTF8Mode(JNIEnv* TERMUX_UNUSED(env), jclass TERMUX_UNUSED(clazz), jint fd)
-{
-        struct termios tios;
-        tcgetattr(fd, &tios);
-        if ((tios.c_iflag & IUTF8) == 0) {
-                tios.c_iflag |= IUTF8;
-                tcsetattr(fd, TCSANOW, &tios);
-        }
-}
-
-JNIEXPORT int JNICALL Java_com_termux_terminal_JNI_waitFor(JNIEnv* TERMUX_UNUSED(env), jclass TERMUX_UNUSED(clazz), jint pid)
-{
-        int status;
-        waitpid(pid, &status, 0);
-        if (WIFEXITED(status)) {
-                return WEXITSTATUS(status);
-        } else if (WIFSIGNALED(status)) {
-                return -WTERMSIG(status);
-        } else {
-                // Should never happen - waitpid(2) says "One of the first three macros will evaluate to a non-zero (true) value".
-                return 0;
-        }
-}
-
-JNIEXPORT void JNICALL Java_com_termux_terminal_JNI_hangupProcessGroup(JNIEnv* TERMUX_UNUSED(env), jclass TERMUX_UNUSED(clazz), jint procId)
-{
-	killpg(procId, SIGHUP);
-}
-
-JNIEXPORT void JNICALL Java_com_termux_terminal_JNI_close(JNIEnv* TERMUX_UNUSED(env), jclass TERMUX_UNUSED(clazz), jint fileDescriptor)
-{
-        close(fileDescriptor);
-}
--- a/app/src/main/jniLibs/armeabi-v7a/libtermux.so
+++ b/app/src/main/jniLibs/armeabi-v7a/libtermux.so
--- a/app/src/main/jniLibs/x86/libtermux.so
+++ b/app/src/main/jniLibs/x86/libtermux.so
--- a/app/src/main/res/drawable-hdpi/ic_launcher.png
+++ b/app/src/main/res/drawable-hdpi/ic_launcher.png
--- a/app/src/main/res/drawable-hdpi/ic_service_notification.png
+++ b/app/src/main/res/drawable-hdpi/ic_service_notification.png
--- a/app/src/main/res/drawable-mdpi/ic_launcher.png
+++ b/app/src/main/res/drawable-mdpi/ic_launcher.png
--- a/app/src/main/res/drawable-mdpi/ic_service_notification.png
+++ b/app/src/main/res/drawable-mdpi/ic_service_notification.png
--- a/app/src/main/res/drawable-xhdpi/ic_launcher.png
+++ b/app/src/main/res/drawable-xhdpi/ic_launcher.png
--- a/app/src/main/res/drawable-xhdpi/ic_service_notification.png
+++ b/app/src/main/res/drawable-xhdpi/ic_service_notification.png
--- a/app/src/main/res/drawable-xxhdpi/ic_launcher.png
+++ b/app/src/main/res/drawable-xxhdpi/ic_launcher.png
--- a/app/src/main/res/drawable-xxhdpi/ic_service_notification.png
+++ b/app/src/main/res/drawable-xxhdpi/ic_service_notification.png
--- a/app/src/main/res/drawable-xxhdpi/text_select_handle_left_mtrl_alpha.png
+++ b/app/src/main/res/drawable-xxhdpi/text_select_handle_left_mtrl_alpha.png
--- a/app/src/main/res/drawable-xxhdpi/text_select_handle_right_mtrl_alpha.png
+++ b/app/src/main/res/drawable-xxhdpi/text_select_handle_right_mtrl_alpha.png
--- a/app/src/main/res/drawable-xxxhdpi/ic_launcher.png
+++ b/app/src/main/res/drawable-xxxhdpi/ic_launcher.png
--- a/app/src/main/res/drawable-xxxhdpi/ic_service_notification.png
+++ b/app/src/main/res/drawable-xxxhdpi/ic_service_notification.png
--- a/app/src/main/res/drawable/banner.png
+++ b/app/src/main/res/drawable/banner.png
--- a/app/src/main/res/drawable/current_session.xml
+++ b/app/src/main/res/drawable/current_session.xml
@@ -1,4 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
 <shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle">
    <solid android:color="#E0E0E0" />
-</shape>
+</shape>
--- a/app/src/main/res/drawable/current_session_black.xml
+++ b/app/src/main/res/drawable/current_session_black.xml
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle">
+    <solid android:color="#212325" />
+</shape>
--- a/Show More
+++ b/Show More