version 0.105

remove restrictions from viewable file types
Fixes https://github.com/termux/termux-app/issues/1872 and similar issues.
2021-01-06 14:31:56 +02:00 · 2021-01-06 14:28:28 +02:00 · 2021-01-06 14:23:15 +02:00 · 2021-01-04 22:41:56 +01:00 · 2021-01-02 09:12:14 +01:00 · 2021-01-02 09:12:14 +01:00
139 changed files with 5417 additions and 2948 deletions
--- a/.editorconfig
+++ b/.editorconfig
@@ -14,3 +14,7 @@ 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@v1
      with:
        name: termux-app
        path: ./app/build/outputs/apk/debug/app-debug.apk
--- 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/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
@@ -7,6 +7,8 @@ build/
 *.apk
 *.so
 .externalNativeBuild
 .cxx
 *.zip
 # Crashlytics configuations
 com_crashlytics_export_strings.xml
@@ -20,19 +22,8 @@ local.properties
 # Signing files
 .signing/
-# User-specific configurations
+# Intellij
-.idea/libraries/
+.idea/
 .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/
 *.iml
 # OS-specific files
@@ -41,5 +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>^$</XML_NAMESPACE>
                    </AND>
                  </match>
                </rule>
              </section>
              <section>
                <rule>
                  <match>
                    <AND>
                      <NAME>xmlns:.*</NAME>
                      <XML_NAMESPACE>^$</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="Default (1)" />
  </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$" />
        <option name="modules">
          <set>
            <option value="$PROJECT_DIR$" />
            <option value="$PROJECT_DIR$/app" />
          </set>
        </option>
        <option name="resolveModulePerSourceSet" value="false" />
      </GradleProjectSettings>
    </option>
  </component>
 </project>
--- a/.idea/inspectionProfiles/Project_Default.xml
+++ b/.idea/inspectionProfiles/Project_Default.xml
@@ -1,71 +0,0 @@
 <component name="InspectionProjectProfileManager">
  <profile version="1.0">
    <option name="myName" value="Project Default" />
    <inspection_tool class="AndroidLintLogConditional" enabled="true" level="WARNING" enabled_by_default="true" />
    <inspection_tool class="AndroidLintNegativeMargin" enabled="true" level="WARNING" enabled_by_default="true" />
    <inspection_tool class="AssignmentUsedAsCondition" enabled="true" level="WARNING" enabled_by_default="true" />
    <inspection_tool class="DeprecatedAPI" enabled="false" level="WARNING" enabled_by_default="false" />
    <inspection_tool class="DuplicateSwitchCase" enabled="false" level="WARNING" enabled_by_default="false" />
    <inspection_tool class="EmptyStatementBody" enabled="false" level="WARNING" enabled_by_default="false">
      <option name="m_reportEmptyBlocks" value="true" />
    </inspection_tool>
    <inspection_tool class="EndlessLoop" enabled="false" level="WARNING" enabled_by_default="false" />
    <inspection_tool class="EqualityInConditionalOperator" enabled="false" level="WARNING" enabled_by_default="false" />
    <inspection_tool class="Finalize" enabled="true" level="WARNING" enabled_by_default="true">
      <option name="ignoreTrivialFinalizers" value="true" />
    </inspection_tool>
    <inspection_tool class="FinalizeNotProtected" enabled="true" level="WARNING" enabled_by_default="true" />
    <inspection_tool class="FormatSpecifiers" enabled="false" level="WARNING" enabled_by_default="false" />
    <inspection_tool class="FunctionImplicitDeclarationInspection" enabled="false" level="WARNING" enabled_by_default="false" />
    <inspection_tool class="HidesUpperScope" enabled="false" level="WARNING" enabled_by_default="false" />
    <inspection_tool class="HidingNonVirtualFunction" enabled="false" level="WARNING" enabled_by_default="false" />
    <inspection_tool class="ImplicitIntegerAndEnumConversion" enabled="false" level="WARNING" enabled_by_default="false" />
    <inspection_tool class="ImplicitPointerAndIntegerConversion" enabled="false" level="WARNING" enabled_by_default="false" />
    <inspection_tool class="IncompatibleEnums" enabled="false" level="WARNING" enabled_by_default="false" />
    <inspection_tool class="IncompatibleInitializers" enabled="false" level="WARNING" enabled_by_default="false" />
    <inspection_tool class="IncompatiblePointers" enabled="false" level="WARNING" enabled_by_default="false" />
    <inspection_tool class="InstanceofChain" enabled="true" level="WARNING" enabled_by_default="true">
      <option name="ignoreInstanceofOnLibraryClasses" value="false" />
    </inspection_tool>
    <inspection_tool class="KRUnspecifiedParameters" enabled="false" level="WARNING" enabled_by_default="false" />
    <inspection_tool class="LocalValueEscapesScope" enabled="false" level="WARNING" enabled_by_default="false" />
    <inspection_tool class="LoggerInitializedWithForeignClass" enabled="false" level="WARNING" enabled_by_default="false">
      <option name="loggerClassName" value="org.apache.log4j.Logger,org.slf4j.LoggerFactory,org.apache.commons.logging.LogFactory,java.util.logging.Logger" />
      <option name="loggerFactoryMethodName" value="getLogger,getLogger,getLog,getLogger" />
    </inspection_tool>
    <inspection_tool class="MissingReturn" enabled="false" level="WARNING" enabled_by_default="false" />
    <inspection_tool class="MissingSwitchCase" enabled="false" level="WARNING" enabled_by_default="false" />
    <inspection_tool class="NotImplementedFunctions" enabled="false" level="WARNING" enabled_by_default="false" />
    <inspection_tool class="NotInitializedVariable" enabled="false" level="WARNING" enabled_by_default="false" />
    <inspection_tool class="NotSuperclass" enabled="false" level="WARNING" enabled_by_default="false" />
    <inspection_tool class="OCDFAInspection" enabled="false" level="WARNING" enabled_by_default="false" />
    <inspection_tool class="OCLoopDoesntUseConditionVariableInspection" enabled="false" level="WARNING" enabled_by_default="false" />
    <inspection_tool class="OCSimplifyInspection" enabled="false" level="WARNING" enabled_by_default="false" />
    <inspection_tool class="OCUnusedGlobalDeclarationInspection" enabled="false" level="WARNING" enabled_by_default="false" />
    <inspection_tool class="OCUnusedMacroInspection" enabled="false" level="WARNING" enabled_by_default="false" />
    <inspection_tool class="OCUnusedStructInspection" enabled="false" level="WARNING" enabled_by_default="false" />
    <inspection_tool class="OCUnusedTemplateParameterInspection" enabled="false" level="WARNING" enabled_by_default="false" />
    <inspection_tool class="OnDemandImport" enabled="true" level="WARNING" enabled_by_default="true" />
    <inspection_tool class="PrivateMemberAccessBetweenOuterAndInnerClass" enabled="true" level="WARNING" enabled_by_default="true" />
    <inspection_tool class="ResourceNotFoundInspection" enabled="false" level="WARNING" enabled_by_default="false" />
    <inspection_tool class="SamePackageImport" enabled="true" level="WARNING" enabled_by_default="true" />
    <inspection_tool class="SignednessMismatch" enabled="false" level="WARNING" enabled_by_default="false" />
    <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>
    <inspection_tool class="UnnecessaryFullyQualifiedName" enabled="true" level="WARNING" enabled_by_default="true">
      <option name="m_ignoreJavadoc" value="false" />
    </inspection_tool>
    <inspection_tool class="UnreachableCode" enabled="false" level="WARNING" enabled_by_default="false" />
    <inspection_tool class="UnusedExpressionResult" enabled="false" level="WARNING" enabled_by_default="false" />
    <inspection_tool class="UnusedImportStatement" enabled="false" level="WARNING" enabled_by_default="false" />
    <inspection_tool class="UnusedLocalVariable" enabled="false" level="WARNING" enabled_by_default="false" />
    <inspection_tool class="UnusedLocalization" enabled="false" level="WARNING" enabled_by_default="false" />
    <inspection_tool class="UnusedParameter" enabled="false" level="WARNING" enabled_by_default="false" />
    <inspection_tool class="UnusedValue" enabled="false" level="WARNING" enabled_by_default="false" />
    <inspection_tool class="ValueMayNotFitIntoReceiver" enabled="false" level="WARNING" enabled_by_default="false" />
    <inspection_tool class="VariableNotUsedInsideIf" enabled="true" level="WARNING" enabled_by_default="true" />
  </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
@@ -1,35 +0,0 @@
 sudo: true
 language: android
 jdk: oraclejdk8
 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-25.0.2
    - android-25
    - extra-android-m2repository
 before_install:
  - git clone https://github.com/urho3d/android-ndk.git $HOME/android-ndk
  - export ANDROID_NDK_HOME=$HOME/android-ndk
  - echo -n | openssl s_client -connect scan.coverity.com:443 | sed -ne '/-BEGIN CERTIFICATE-/,/-END CERTIFICATE-/p' | sudo tee -a /etc/ssl/certs/ca-certificates.crt
 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 build"
    branch_pattern: master
--- a/LICENSE.md
+++ b/LICENSE.md
@@ -0,0 +1,3 @@
 Released under [the GPLv3 license](https://www.gnu.org/licenses/gpl.html).
 Contains code from `Terminal Emulator for Android` by which is released under [the Apache License 2.0](https://www.apache.org/licenses/).
--- a/README.md
+++ b/README.md
@@ -1,33 +1,65 @@
-Termux app
+# Termux application
-==========
+
-[![Travis build status](https://travis-ci.org/termux/termux-app.svg?branch=master)](https://travis-ci.org/termux/termux-app)
+[![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 app and Linux environment.
+[Termux](https://termux.com) is an Android terminal application and Linux environment.
-* [Termux on Google Play Store](https://play.google.com/store/apps/details?id=com.termux)
+- [Termux Reddit community](https://reddit.com/r/termux)
-* [Termux on F-Droid](https://f-droid.org/repository/browse/?fdid=com.termux)
+- [Termux Wiki](https://wiki.termux.com/wiki/)
-* [Termux Help](http://termux.com/help/)
+- [Termux Twitter](http://twitter.com/termux/)
 * [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)
+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
+## Installation
 =======
 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/).
-Terminal resources
+Termux application can be obtained from:
 ==================
 * [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
+- [Google Play](https://play.google.com/store/apps/details?id=com.termux)
-==================
+- [F-Droid](https://f-droid.org/en/packages/com.termux/)
-* 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).
+- [Kali Nethunter Store](https://store.nethunter.com/en/packages/com.termux/)
-* 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).
+Additionally we provide per-commit debug builds for those who want to try
-* 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).
+out the latest features or test their pull request. This build can be obtained
-* xterm: The grandfather of terminal emulators. [Source](http://invisible-island.net/datafiles/release/xterm.tar.gz).
+from one of the workflow runs listed on [Github Actions](https://github.com/termux/termux-app/actions)
-* Connectbot: Android SSH client. [Source](https://github.com/connectbot/connectbot)
+page.
-* Android Terminal Emulator: Android terminal app which Termux terminal handling is based on. Inactive. [Source](https://github.com/jackpal/Android-Terminal-Emulator).
+
 Signature keys of all offered builds are different. Before you switch the
 installation source, you will have to uninstall the Termux application and
 all currently installed plugins.
 ## 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).
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -1,20 +1,24 @@
-apply plugin: 'com.android.application'
+plugins {
  id "com.android.application"
 }
 android {
-    compileSdkVersion 25
+    compileSdkVersion project.properties.compileSdkVersion.toInteger()
-    buildToolsVersion "25.0.2"
+    ndkVersion project.properties.ndkVersion
    dependencies {
-        compile 'com.android.support:support-annotations:25.0.1'
+        implementation "androidx.annotation:annotation:1.1.0"
-        compile "com.android.support:support-v4:25.0.1"
+        implementation "androidx.viewpager:viewpager:1.0.0"
        implementation "androidx.drawerlayout:drawerlayout:1.1.1"
        implementation project(":terminal-view")
    }
    defaultConfig {
        applicationId "com.termux"
-        minSdkVersion 21
+        minSdkVersion project.properties.minSdkVersion.toInteger()
-        targetSdkVersion 25
+        targetSdkVersion project.properties.targetSdkVersion.toInteger()
-        versionCode 45
+        versionCode 105
-        versionName "0.45"
+        versionName "0.105"
        externalNativeBuild {
            ndkBuild {
@@ -25,6 +29,16 @@ android {
        ndk {
            abiFilters 'x86', 'x86_64', 'armeabi-v7a', 'arm64-v8a'
        }
    }
    signingConfigs {
        debug {
            storeFile file('dev_keystore.jks')
            keyAlias 'alias'
            storePassword 'xrj45yWGLbsO7W0v'
            keyPassword 'xrj45yWGLbsO7W0v'
        }
    }
    buildTypes {
@@ -33,15 +47,106 @@ android {
            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/jni/Android.mk"
+            path "src/main/cpp/Android.mk"
        }
    }
    lintOptions {
        disable 'ProtectedPermissions'
    }
    testOptions {
        unitTests {
            includeAndroidResources = true
        }
    }
 }
 dependencies {
-    testCompile 'junit:junit:4.12'
+    testImplementation 'junit:junit:4.13.1'
    testImplementation 'org.robolectric:robolectric:4.4'
 }
 task versionName {
  doLast {
    print android.defaultConfig.versionName
  }
 }
 def downloadBootstrap(String arch, String expectedChecksum, int 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://bintray.com/termux/bootstrap/download_file?file_path=bootstrap-" + arch + "-v" + version + ".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 = 35
        downloadBootstrap("aarch64", "6707cc641cde13dc2f24e819cd8ca3f1a9a003577523c25beff72690588594f5", version)
        downloadBootstrap("arm",     "eadc9afb52900dc744fdb39ed0c3dbb87ad8ce6190b27946467df7aeab353fa7", version)
        downloadBootstrap("i686",    "b674ef43c8388dd19e0d25b024b5792c8532ee0ddcc49f90c0716042724fa905", version)
        downloadBootstrap("x86_64",  "86043eb76efededbdf5644686a899f4d762703fe18e23fb906a2482d593d7549", 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 +7,5 @@
 # For more details, see
 #   http://developer.android.com/guide/developing/tools/proguard.html
-# Add any project specific keep options here:
+-renamesourcefileattribute SourceFile
-
+-keepattributes SourceFile,LineNumberTable
 # 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 *;
 #}
--- 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
@@ -1,4 +1,5 @@
 <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"
@@ -7,26 +8,43 @@
    <uses-feature android:name="android.hardware.touchscreen" android:required="false" />
    <uses-feature android:name="android.software.leanback" android:required="false" />
    <permission android:name="com.termux.permission.RUN_COMMAND"
        android:label="@string/run_command_permission_label"
        android:description="@string/run_command_permission_description"
        android:icon="@drawable/ic_launcher"
        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.WRITE_SECURE_SETTINGS" />
    <application
-        android:allowBackup="true"
+        android:extractNativeLibs="true"
-        android:fullBackupContent="@xml/backupscheme"
+        android:allowBackup="false"
-        android:icon="@mipmap/ic_launcher"
+        android:icon="@drawable/ic_launcher"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:banner="@drawable/banner"
        android:label="@string/application_name"
        android:theme="@style/Theme.Termux"
        android:supportsRtl="false" >
        <!-- 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:label="@string/application_name"
 	    android:configChanges="orientation|screenSize|smallestScreenSize|density|screenLayout|uiMode|keyboard|keyboardHidden|navigation"
            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" />
@@ -43,6 +61,7 @@
            android:exported="false"
            android:theme="@android:style/Theme.Material.Light.DarkActionBar"
            android:parentActivityName=".app.TermuxActivity"
            android:resizeableActivity="true"
            android:label="@string/application_name" />
        <activity
@@ -50,6 +69,7 @@
            android:label="@string/application_name"
            android:taskAffinity="com.termux.filereceiver"
            android:excludeFromRecents="true"
            android:resizeableActivity="true"
            android:noHistory="true">
            <!-- Accept multiple file types when sending. -->
            <intent-filter>
@@ -63,18 +83,30 @@
                <data android:mimeType="text/*" />
                <data android:mimeType="video/*" />
            </intent-filter>
-            <!-- Be more restrictive for viewing files, restricting ourselves to text files. -->
+            <!-- Accept multiple file types to let Termux be usable as generic file viewer. -->
-            <intent-filter>
+            <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="application/json" />
+                <data android:mimeType="video/*" />
                <data android:mimeType="application/*xml*" />
                <data android:mimeType="application/*latex*" />
                <data android:mimeType="application/javascript" />
            </intent-filter>
        </activity>
        <activity-alias
            android:name=".HomeActivity"
            android:targetActivity="com.termux.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>
        <provider
            android:name=".filepicker.TermuxDocumentsProvider"
            android:authorities="com.termux.documents"
@@ -90,6 +122,24 @@
            android:name="com.termux.app.TermuxService"
            android:exported="false" />
        <service
            android:name=".app.RunCommandService"
            android:exported="true"
            android:permission="com.termux.permission.RUN_COMMAND" >
            <intent-filter>
                <action android:name="com.termux.RUN_COMMAND" />
            </intent-filter>
        </service>
        <receiver android:name=".app.TermuxOpenReceiver" />
        <provider android:authorities="com.termux.files"
                  android:readPermission="android.permission.permRead"
                  android:exported="true"
                  android:grantUriPermissions="true"
                  android:name="com.termux.app.TermuxOpenReceiver$ContentProvider" />
 	<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/BackgroundJob.java
+++ b/app/src/main/java/com/termux/app/BackgroundJob.java
@@ -1,5 +1,9 @@
 package com.termux.app;
 import android.app.Activity;
 import android.app.PendingIntent;
 import android.content.Intent;
 import android.os.Bundle;
 import android.util.Log;
 import java.io.BufferedReader;
@@ -12,6 +16,7 @@ import java.lang.reflect.Field;
 import java.nio.charset.StandardCharsets;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collections;
 import java.util.List;
 /**
@@ -23,7 +28,11 @@ public final class BackgroundJob {
    final Process mProcess;
-    public BackgroundJob(String cwd, String fileToExecute, final String[] args, final TermuxService service) {
+    public BackgroundJob(String cwd, String fileToExecute, final String[] args, final TermuxService service){
        this(cwd, fileToExecute, args, service, null);
    }
    public BackgroundJob(String cwd, String fileToExecute, final String[] args, final TermuxService service, PendingIntent pendingIntent) {
        String[] env = buildEnvironment(false, cwd);
        if (cwd == null) cwd = TermuxService.HOME_PATH;
@@ -42,6 +51,28 @@ public final class BackgroundJob {
        mProcess = process;
        final int pid = getPid(mProcess);
        final Bundle result = new Bundle();
        final StringBuilder outResult = new StringBuilder();
        final StringBuilder errResult = new StringBuilder();
        Thread errThread = new Thread() {
            @Override
            public void run() {
                InputStream stderr = mProcess.getErrorStream();
                BufferedReader reader = new BufferedReader(new InputStreamReader(stderr, StandardCharsets.UTF_8));
                String line;
                try {
                    // FIXME: Long lines.
                    while ((line = reader.readLine()) != null) {
                        errResult.append(line).append('\n');
                        Log.i(LOG_TAG, "[" + pid + "] stderr: " + line);
                    }
                } catch (IOException e) {
                    // Ignore.
                }
            }
        };
        errThread.start();
        new Thread() {
            @Override
@@ -49,11 +80,13 @@ public final class BackgroundJob {
                Log.i(LOG_TAG, "[" + pid + "] starting: " + processDescription);
                InputStream stdout = mProcess.getInputStream();
                BufferedReader reader = new BufferedReader(new InputStreamReader(stdout, StandardCharsets.UTF_8));
                String line;
                try {
                    // FIXME: Long lines.
                    while ((line = reader.readLine()) != null) {
                        Log.i(LOG_TAG, "[" + pid + "] stdout: " + line);
                        outResult.append(line).append('\n');
                    }
                } catch (IOException e) {
                    Log.e(LOG_TAG, "Error reading output", e);
@@ -67,58 +100,73 @@ public final class BackgroundJob {
                    } else {
                        Log.w(LOG_TAG, "[" + pid + "] exited with code: " + exitCode);
                    }
                    result.putString("stdout", outResult.toString());
                    result.putInt("exitCode", exitCode);
                    errThread.join();
                    result.putString("stderr", errResult.toString());
                    Intent data = new Intent();
                    data.putExtra("result", result);
                    if(pendingIntent != null) {
                        try {
                            pendingIntent.send(service.getApplicationContext(), Activity.RESULT_OK, data);
                        } catch (PendingIntent.CanceledException e) {
                            // The caller doesn't want the result? That's fine, just ignore
                        }
                    }
                } catch (InterruptedException e) {
-                    // Ignore.
+                    // Ignore
                }
            }
        }.start();
        new Thread() {
            @Override
            public void run() {
                InputStream stderr = mProcess.getErrorStream();
                BufferedReader reader = new BufferedReader(new InputStreamReader(stderr, StandardCharsets.UTF_8));
                String line;
                try {
                    // FIXME: Long lines.
                    while ((line = reader.readLine()) != null) {
                        Log.i(LOG_TAG, "[" + pid + "] stderr: " + line);
                    }
                } catch (IOException e) {
                    // Ignore.
                }
            }
        };
    }
-    public static String[] buildEnvironment(boolean failSafe, String cwd) {
+    private static void addToEnvIfPresent(List<String> environment, String name) {
        String value = System.getenv(name);
        if (value != null) {
            environment.add(name + "=" + value);
        }
    }
    static String[] buildEnvironment(boolean failSafe, String cwd) {
        new File(TermuxService.HOME_PATH).mkdirs();
        if (cwd == null) cwd = TermuxService.HOME_PATH;
-        final String termEnv = "TERM=xterm-256color";
+        List<String> environment = new ArrayList<>();
-        final String homeEnv = "HOME=" + TermuxService.HOME_PATH;
+
-        final String prefixEnv = "PREFIX=" + TermuxService.PREFIX_PATH;
+        environment.add("TERM=xterm-256color");
-        final String androidRootEnv = "ANDROID_ROOT=" + System.getenv("ANDROID_ROOT");
+        environment.add("COLORTERM=truecolor");
-        final String androidDataEnv = "ANDROID_DATA=" + System.getenv("ANDROID_DATA");
+        environment.add("HOME=" + TermuxService.HOME_PATH);
        environment.add("PREFIX=" + TermuxService.PREFIX_PATH);
        environment.add("BOOTCLASSPATH=" + System.getenv("BOOTCLASSPATH"));
        environment.add("ANDROID_ROOT=" + System.getenv("ANDROID_ROOT"));
        environment.add("ANDROID_DATA=" + System.getenv("ANDROID_DATA"));
        // EXTERNAL_STORAGE is needed for /system/bin/am to work on at least
        // Samsung S7 - see https://plus.google.com/110070148244138185604/posts/gp8Lk3aCGp3.
-        final String externalStorageEnv = "EXTERNAL_STORAGE=" + System.getenv("EXTERNAL_STORAGE");
+        environment.add("EXTERNAL_STORAGE=" + System.getenv("EXTERNAL_STORAGE"));
-        String[] env;
+
        // These variables are needed if running on Android 10 and higher.
        addToEnvIfPresent(environment, "ANDROID_ART_ROOT");
        addToEnvIfPresent(environment, "DEX2OATBOOTCLASSPATH");
        addToEnvIfPresent(environment, "ANDROID_I18N_ROOT");
        addToEnvIfPresent(environment, "ANDROID_RUNTIME_ROOT");
        addToEnvIfPresent(environment, "ANDROID_TZDATA_ROOT");
        if (failSafe) {
            // Keep the default path so that system binaries can be used in the failsafe session.
-            final String pathEnv = "PATH=" + System.getenv("PATH");
+            environment.add("PATH= " + System.getenv("PATH"));
            return new String[]{termEnv, homeEnv, prefixEnv, androidRootEnv, androidDataEnv, pathEnv, externalStorageEnv};
        } else {
-            final String ps1Env = "PS1=$ ";
+            environment.add("LANG=en_US.UTF-8");
-            final String ldEnv = "LD_LIBRARY_PATH=" + TermuxService.PREFIX_PATH + "/lib";
+            environment.add("PATH=" + TermuxService.PREFIX_PATH + "/bin");
-            final String langEnv = "LANG=en_US.UTF-8";
+            environment.add("PWD=" + cwd);
-            final String pathEnv = "PATH=" + TermuxService.PREFIX_PATH + "/bin:" + TermuxService.PREFIX_PATH + "/bin/applets";
+            environment.add("TMPDIR=" + TermuxService.PREFIX_PATH + "/tmp");
            final String pwdEnv = "PWD=" + cwd;
            return new String[]{termEnv, homeEnv, prefixEnv, ps1Env, ldEnv, langEnv, pathEnv, pwdEnv, androidRootEnv, androidDataEnv, externalStorageEnv};
        }
        return environment.toArray(new String[0]);
    }
    public static int getPid(Process p) {
@@ -158,7 +206,6 @@ public final class BackgroundJob {
                            if (c == ' ' || c == '\n') {
                                if (builder.length() == 0) {
                                    // Skip whitespace after shebang.
                                    continue;
                                } else {
                                    // End of shebang.
                                    String executable = builder.toString();
@@ -186,10 +233,8 @@ public final class BackgroundJob {
        List<String> result = new ArrayList<>();
        if (interpreter != null) result.add(interpreter);
        result.add(fileToExecute);
-        if (args != null) {
+        if (args != null) Collections.addAll(result, args);
-            for (String arg : args) result.add(arg);
+        return result.toArray(new String[0]);
        }
        return result.toArray(new String[result.size()]);
    }
 }
--- a/app/src/main/java/com/termux/app/BellUtil.java
+++ b/app/src/main/java/com/termux/app/BellUtil.java
@@ -0,0 +1,63 @@
 package com.termux.app;
 import android.content.Context;
 import android.os.Handler;
 import android.os.Looper;
 import android.os.SystemClock;
 import android.os.Vibrator;
 public class BellUtil {
    private static BellUtil instance = null;
    private static final Object lock = new Object();
    public static BellUtil getInstance(Context context) {
        if (instance == null) {
            synchronized (lock) {
                if (instance == null) {
                    instance = new BellUtil((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 BellUtil(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, scheudle 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/DialogUtils.java
+++ b/app/src/main/java/com/termux/app/DialogUtils.java
@@ -9,7 +9,6 @@ import android.view.KeyEvent;
 import android.view.ViewGroup.LayoutParams;
 import android.widget.EditText;
 import android.widget.LinearLayout;
 import android.widget.TextView;
 public final class DialogUtils {
@@ -31,13 +30,10 @@ public final class DialogUtils {
        final AlertDialog[] dialogHolder = new AlertDialog[1];
        input.setImeActionLabel(activity.getResources().getString(positiveButtonText), KeyEvent.KEYCODE_ENTER);
-        input.setOnEditorActionListener(new TextView.OnEditorActionListener() {
+        input.setOnEditorActionListener((v, actionId, event) -> {
-            @Override
+            onPositive.onTextSet(input.getText().toString());
-            public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
+            dialogHolder[0].dismiss();
-                onPositive.onTextSet(input.getText().toString());
+            return true;
                dialogHolder[0].dismiss();
                return true;
            }
        });
        float dipInPixels = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 1, activity.getResources().getDisplayMetrics());
@@ -53,31 +49,16 @@ public final class DialogUtils {
        AlertDialog.Builder builder = new AlertDialog.Builder(activity)
            .setTitle(titleText).setView(layout)
-            .setPositiveButton(positiveButtonText, new DialogInterface.OnClickListener() {
+            .setPositiveButton(positiveButtonText, (d, whichButton) -> onPositive.onTextSet(input.getText().toString()));
                @Override
                public void onClick(DialogInterface d, int whichButton) {
                    onPositive.onTextSet(input.getText().toString());
                }
            });
        if (onNeutral != null) {
-            builder.setNeutralButton(neutralButtonText, new DialogInterface.OnClickListener() {
+            builder.setNeutralButton(neutralButtonText, (dialog, which) -> onNeutral.onTextSet(input.getText().toString()));
                @Override
                public void onClick(DialogInterface dialog, int which) {
                    onNeutral.onTextSet(input.getText().toString());
                }
            });
        }
        if (onNegative == null) {
            builder.setNegativeButton(android.R.string.cancel, null);
        } else {
-            builder.setNegativeButton(negativeButtonText, new DialogInterface.OnClickListener() {
+            builder.setNegativeButton(negativeButtonText, (dialog, which) -> onNegative.onTextSet(input.getText().toString()));
                @Override
                public void onClick(DialogInterface dialog, int which) {
                    onNegative.onTextSet(input.getText().toString());
                }
            });
        }
        if (onDismiss != null) builder.setOnDismissListener(onDismiss);
--- a/app/src/main/java/com/termux/app/ExtraKeysInfos.java
+++ b/app/src/main/java/com/termux/app/ExtraKeysInfos.java
@@ -0,0 +1,340 @@
 package com.termux.app;
 import android.text.TextUtils;
 import androidx.annotation.Nullable;
 import org.json.JSONArray;
 import org.json.JSONException;
 import org.json.JSONObject;
 import java.util.Arrays;
 import java.util.HashMap;
 import java.util.Map;
 import java.util.stream.Collectors;
 public class ExtraKeysInfos {
    /**
     * Matrix of buttons displayed
     */
    private ExtraKeyButton[][] buttons;
    /**
     * This corresponds to one of the CharMapDisplay below
     */
    private String style = "default";
    public ExtraKeysInfos(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);
    }
 }
 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 String key;
    /**
     * If the key is a macro, i.e. a sequence of keys separated by space.
     */
    private boolean macro;
    /**
     * The text that will be shown on the button.
     */
    private String display;
    /**
     * The information of the popup (triggered by swipe up).
     */
    @Nullable
    private ExtraKeyButton popup = null;
    public ExtraKeyButton(ExtraKeysInfos.CharDisplayMap charDisplayMap, JSONObject config) throws JSONException {
        this(charDisplayMap, config, null);
    }
    public ExtraKeyButton(ExtraKeysInfos.CharDisplayMap charDisplayMap, JSONObject config, 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] = ExtraKeysInfos.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/ExtraKeysView.java
+++ b/app/src/main/java/com/termux/app/ExtraKeysView.java
@@ -1,18 +1,35 @@
 package com.termux.app;
 import android.annotation.SuppressLint;
 import android.content.Context;
 import android.os.Build;
 import android.provider.Settings;
 import android.util.AttributeSet;
 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 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 android.widget.ToggleButton;
 import com.termux.R;
 import com.termux.terminal.TerminalSession;
 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.
@@ -20,152 +37,312 @@ import com.termux.view.TerminalView;
 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);
        reload();
    }
-    static void sendKey(View view, String keyName) {
+    static final Map<String, Integer> keyCodesForString = new HashMap<String, Integer>() {{
-        int keyCode = 0;
+        put("SPACE", KeyEvent.KEYCODE_SPACE);
-        String chars = null;
+        put("ESC", KeyEvent.KEYCODE_ESCAPE);
-        switch (keyName) {
+        put("TAB", KeyEvent.KEYCODE_TAB);
-            case "ESC":
+        put("HOME", KeyEvent.KEYCODE_MOVE_HOME);
-                keyCode = KeyEvent.KEYCODE_ESCAPE;
+        put("END", KeyEvent.KEYCODE_MOVE_END);
-                break;
+        put("PGUP", KeyEvent.KEYCODE_PAGE_UP);
-            case "TAB":
+        put("PGDN", KeyEvent.KEYCODE_PAGE_DOWN);
-                keyCode = KeyEvent.KEYCODE_TAB;
+        put("INS", KeyEvent.KEYCODE_INSERT);
-                break;
+        put("DEL", KeyEvent.KEYCODE_FORWARD_DEL);
-            case "▲":
+        put("BKSP", KeyEvent.KEYCODE_DEL);
-                keyCode = KeyEvent.KEYCODE_DPAD_UP;
+        put("UP", KeyEvent.KEYCODE_DPAD_UP);
-                break;
+        put("LEFT", KeyEvent.KEYCODE_DPAD_LEFT);
-            case "◀":
+        put("RIGHT", KeyEvent.KEYCODE_DPAD_RIGHT);
-                keyCode = KeyEvent.KEYCODE_DPAD_LEFT;
+        put("DOWN", KeyEvent.KEYCODE_DPAD_DOWN);
-                break;
+        put("ENTER", KeyEvent.KEYCODE_ENTER);
-            case "▶":
+        put("F1", KeyEvent.KEYCODE_F1);
-                keyCode = KeyEvent.KEYCODE_DPAD_RIGHT;
+        put("F2", KeyEvent.KEYCODE_F2);
-                break;
+        put("F3", KeyEvent.KEYCODE_F3);
-            case "▼":
+        put("F4", KeyEvent.KEYCODE_F4);
-                keyCode = KeyEvent.KEYCODE_DPAD_DOWN;
+        put("F5", KeyEvent.KEYCODE_F5);
-                break;
+        put("F6", KeyEvent.KEYCODE_F6);
-            case "―":
+        put("F7", KeyEvent.KEYCODE_F7);
-                chars = "-";
+        put("F8", KeyEvent.KEYCODE_F8);
-                break;
+        put("F9", KeyEvent.KEYCODE_F9);
-            default:
+        put("F10", KeyEvent.KEYCODE_F10);
-                chars = keyName;
+        put("F11", KeyEvent.KEYCODE_F11);
-        }
+        put("F12", KeyEvent.KEYCODE_F12);
    }};
-        if (keyCode > 0) {
+    private void sendKey(View view, String keyName, boolean forceCtrlDown, boolean forceLeftAltDown) {
-            view.dispatchKeyEvent(new KeyEvent(KeyEvent.ACTION_DOWN, keyCode));
+        TerminalView terminalView = view.findViewById(R.id.terminal_view);
-            view.dispatchKeyEvent(new KeyEvent(KeyEvent.ACTION_UP, keyCode));
+        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)) {
            int keyCode = keyCodesForString.get(keyName);
            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 {
-            TerminalView terminalView = (TerminalView) view.findViewById(R.id.terminal_view);
+            // not a control char
-            TerminalSession session = terminalView.getCurrentSession();
+            keyName.codePoints().forEach(codePoint -> {
-            if (session != null) session.write(chars);
+                terminalView.inputCodePoint(codePoint, forceCtrlDown, forceLeftAltDown);
            });
        }
    }
-    private ToggleButton controlButton;
+    private void sendKey(View view, ExtraKeyButton buttonInfo) {
-    private ToggleButton altButton;
+        if (buttonInfo.isMacro()) {
-    private ToggleButton fnButton;
+            String[] keys = buttonInfo.getKey().split(" ");
-
+            boolean ctrlDown = false;
-    public boolean readControlButton() {
+            boolean altDown = false;
-        if (controlButton.isPressed()) return true;
+            for (String key : keys) {
-        boolean result = controlButton.isChecked();
+                if ("CTRL".equals(key)) {
-        if (result) {
+                    ctrlDown = true;
-            controlButton.setChecked(false);
+                } else if ("ALT".equals(key)) {
-            controlButton.setTextColor(TEXT_COLOR);
+                    altDown = true;
                } else {
                    sendKey(view, key, ctrlDown, altDown);
                    ctrlDown = false;
                    altDown = false;
                }
            }
        } else {
            sendKey(view, buttonInfo.getKey(), false, false);
        }
        return result;
    }
-    public boolean readAltButton() {
+    public enum SpecialButton {
-        if (altButton.isPressed()) return true;
+        CTRL, ALT, FN
        boolean result = altButton.isChecked();
        if (result) {
            altButton.setChecked(false);
            altButton.setTextColor(TEXT_COLOR);
        }
        return result;
    }
-    public boolean readFnButton() {
+    private static class SpecialButtonState {
-        if (fnButton.isPressed()) return true;
+        boolean isOn = false;
-        boolean result = fnButton.isChecked();
+        ToggleButton button = null;
        if (result) {
            fnButton.setChecked(false);
            fnButton.setTextColor(TEXT_COLOR);
        }
        return result;
    }
-    void reload() {
+    private Map<SpecialButton, SpecialButtonState> specialButtons = new HashMap<SpecialButton, SpecialButtonState>() {{
-        altButton = controlButton = null;
+        put(SpecialButton.CTRL, new SpecialButtonState());
        put(SpecialButton.ALT, new SpecialButtonState());
        put(SpecialButton.FN, new SpecialButtonState());
    }};
    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)
            return false;
        if (state.button == null) {
            return false;
        }
        if (state.button.isPressed())
            return true;
        if (! state.button.isChecked())
            return false;
        state.button.setChecked(false);
        state.button.setTextColor(TEXT_COLOR);
        return true;
    }
    void popup(View view, String text) {
        int width = view.getMeasuredWidth();
        int height = view.getMeasuredHeight();
        Button button = new Button(getContext(), null, android.R.attr.buttonBarButtonStyle);
        button.setText(text);
        button.setTextColor(TEXT_COLOR);
        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")
    void reload(ExtraKeysInfos infos) {
        if(infos == null)
            return;
        for(SpecialButtonState state : specialButtons.values())
            state.button = null;
        removeAllViews();
-        String[][] buttons = {
+        ExtraKeyButton[][] buttons = infos.getMatrix();
            {"ESC", "CTRL", "ALT", "TAB", "―", "/", "|"}
        };
-        final int rows = buttons.length;
+        setRowCount(buttons.length);
-        final int cols = buttons[0].length;
+        setColumnCount(maximumLength(buttons));
-        setRowCount(rows);
+        for (int row = 0; row < buttons.length; row++) {
-        setColumnCount(cols);
+            for (int col = 0; col < buttons[row].length; col++) {
-
+                final ExtraKeyButton buttonInfo = buttons[row][col];
        for (int row = 0; row < rows; row++) {
            for (int col = 0; col < cols; col++) {
                final String buttonText = buttons[row][col];
                Button button;
-                switch (buttonText) {
+                if(Arrays.asList("CTRL", "ALT", "FN").contains(buttonInfo.getKey())) {
-                    case "CTRL":
+                    SpecialButtonState state = specialButtons.get(SpecialButton.valueOf(buttonInfo.getKey())); // for valueOf: https://stackoverflow.com/a/604426/1980630
-                        button = controlButton = new ToggleButton(getContext(), null, android.R.attr.buttonBarButtonStyle);
+                    state.isOn = true;
-                        button.setClickable(true);
+                    button = state.button = new ToggleButton(getContext(), null, android.R.attr.buttonBarButtonStyle);
-                        break;
+                    button.setClickable(true);
-                    case "ALT":
+                } else {
-                        button = altButton = new ToggleButton(getContext(), null, android.R.attr.buttonBarButtonStyle);
+                    button = new Button(getContext(), null, android.R.attr.buttonBarButtonStyle);
                        button.setClickable(true);
                        break;
                    case "FN":
                        button = fnButton = new ToggleButton(getContext(), null, android.R.attr.buttonBarButtonStyle);
                        button.setClickable(true);
                        break;
                    default:
                        button = new Button(getContext(), null, android.R.attr.buttonBarButtonStyle);
                        break;
                }
-                button.setText(buttonText);
+                button.setText(buttonInfo.getDisplay());
                button.setTextColor(TEXT_COLOR);
                button.setPadding(0, 0, 0, 0);
                final Button finalButton = button;
-                button.setOnClickListener(new OnClickListener() {
+                button.setOnClickListener(v -> {
-                    @Override
+                    if (Settings.System.getInt(getContext().getContentResolver(),
-                    public void onClick(View v) {
+                        Settings.System.HAPTIC_FEEDBACK_ENABLED, 0) != 0) {
-                        View root = getRootView();
+
-                        switch (buttonText) {
+                        if (Build.VERSION.SDK_INT >= 28) {
-                            case "CTRL":
+                            finalButton.performHapticFeedback(HapticFeedbackConstants.KEYBOARD_TAP);
-                            case "ALT":
+                        } else {
-                            case "FN":
+                            // Perform haptic feedback only if no total silence mode enabled.
-                                ToggleButton self = (ToggleButton) finalButton;
+                            if (Settings.Global.getInt(getContext().getContentResolver(), "zen_mode", 0) != 2) {
-                                self.setChecked(self.isChecked());
+                                finalButton.performHapticFeedback(HapticFeedbackConstants.KEYBOARD_TAP);
-                                self.setTextColor(self.isChecked() ? 0xFF80DEEA : TEXT_COLOR);
+                            }
                                break;
                            default:
                                sendKey(root, buttonText);
                                break;
                        }
                    }
                    View root = getRootView();
                    if (Arrays.asList("CTRL", "ALT", "FN").contains(buttonInfo.getKey())) {
                        ToggleButton self = (ToggleButton) finalButton;
                        self.setChecked(self.isChecked());
                        self.setTextColor(self.isChecked() ? INTERESTING_COLOR : TEXT_COLOR);
                    } else {
                        sendKey(root, buttonInfo);
                    }
                });
-                GridLayout.LayoutParams param = new GridLayout.LayoutParams();
+                button.setOnTouchListener((v, event) -> {
-                param.height = param.width = 0;
+                    final View root = getRootView();
-                param.rightMargin = param.topMargin = 0;
+                    switch (event.getAction()) {
-                param.setGravity(Gravity.LEFT);
+                        case MotionEvent.ACTION_DOWN:
-                float weight = "▲▼◀▶".contains(buttonText) ? 0.7f : 1.f;
+                            longPressCount = 0;
-                param.columnSpec = GridLayout.spec(col, GridLayout.FILL, weight);
+                            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);
                                    String extraButtonDisplayedText = buttonInfo.getPopup().getDisplay();
                                    popup(v, extraButtonDisplayedText);
                                }
                                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) {
                                        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);
--- a/app/src/main/java/com/termux/app/FullScreenHelper.java
+++ b/app/src/main/java/com/termux/app/FullScreenHelper.java
@@ -1,67 +0,0 @@
 package com.termux.app;
 import android.graphics.Color;
 import android.graphics.drawable.ColorDrawable;
 import android.os.Build;
 import android.view.View;
 import com.termux.R;
 /**
 * Utility to manage full screen immersive mode.
 * <p/>
 * See https://code.google.com/p/android/issues/detail?id=5497
 */
 final class FullScreenHelper {
    private boolean mEnabled = false;
    final TermuxActivity mActivity;
    public FullScreenHelper(TermuxActivity activity) {
        this.mActivity = activity;
    }
    public void setImmersive(boolean enabled) {
        if (enabled == mEnabled) return;
        mEnabled = enabled;
        View decorView = mActivity.getWindow().getDecorView();
        if (enabled) {
            decorView.setOnSystemUiVisibilityChangeListener
                (new View.OnSystemUiVisibilityChangeListener() {
                    @Override
                    public void onSystemUiVisibilityChange(int visibility) {
                        if ((visibility & View.SYSTEM_UI_FLAG_FULLSCREEN) == 0) {
                            if (mActivity.mSettings.isShowExtraKeys()) {
                                mActivity.findViewById(R.id.viewpager).setVisibility(View.VISIBLE);
                            }
                            setImmersiveMode();
                        } else {
                            mActivity.findViewById(R.id.viewpager).setVisibility(View.GONE);
                        }
                    }
                });
            setImmersiveMode();
        } else {
            decorView.setSystemUiVisibility(View.SYSTEM_UI_FLAG_VISIBLE);
            decorView.setOnSystemUiVisibilityChangeListener(null);
        }
    }
    private static boolean isColorLight(int color) {
        double darkness = 1 - (0.299 * Color.red(color) + 0.587 * Color.green(color) + 0.114 * Color.blue(color)) / 255;
        return darkness < 0.5;
    }
    void setImmersiveMode() {
        int flags = View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
            | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY
            | View.SYSTEM_UI_FLAG_FULLSCREEN;
        int color = ((ColorDrawable) mActivity.getWindow().getDecorView().getBackground()).getColor();
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M && isColorLight(color))
            flags |= View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR;
        mActivity.getWindow().getDecorView().setSystemUiVisibility(flags);
    }
 }
--- a/app/src/main/java/com/termux/app/RunCommandService.java
+++ b/app/src/main/java/com/termux/app/RunCommandService.java
@@ -0,0 +1,189 @@
 package com.termux.app;
 import android.app.Notification;
 import android.app.NotificationChannel;
 import android.app.NotificationManager;
 import android.app.Service;
 import android.content.Context;
 import android.content.Intent;
 import android.net.Uri;
 import android.os.Binder;
 import android.os.Build;
 import android.os.IBinder;
 import android.util.Log;
 import com.termux.R;
 import java.io.File;
 import java.io.FileInputStream;
 import java.io.InputStreamReader;
 import java.nio.charset.StandardCharsets;
 import java.util.Properties;
 /**
 * When allow-external-apps property is set to "true" in ~/.termux/termux.properties, Termux 
 * is able to process execute intents sent by third-party applications.
 *
 * Third-party program must declare com.termux.permission.RUN_COMMAND permission and it should be
 * granted by user.
 *
 * Absolute path of command or script must be given in "RUN_COMMAND_PATH" extra.
 * The "RUN_COMMAND_ARGUMENTS", "RUN_COMMAND_WORKDIR" and "RUN_COMMAND_BACKGROUND" extras are 
 * optional. The workdir defaults to termux home. The background mode defaults to "false".
 * The command path and workdir can optionally be prefixed with "$PREFIX/" or "~/" if an absolute
 * path is not to be given.
 *
 * To automatically bring to foreground and start termux commands that were started with
 * background mode "false" in android >= 10 without user having to click the notification manually,
 * requires termux to be granted draw over apps permission due to new restrictions
 * of starting activities from the background, this also applies to Termux:Tasker plugin.
 *
 * To reduce the chance of termux being killed by android even further due to violation of not
 * being able to call startForeground() within ~5s of service start in android >= 8, the user
 * may disable battery optimizations for termux.
 *
 * Sample code to run command "top" with java:
 *   Intent intent = new Intent();
 *   intent.setClassName("com.termux", "com.termux.app.RunCommandService");
 *   intent.setAction("com.termux.RUN_COMMAND");
 *   intent.putExtra("com.termux.RUN_COMMAND_PATH", "/data/data/com.termux/files/usr/bin/top");
 *   intent.putExtra("com.termux.RUN_COMMAND_ARGUMENTS", new String[]{"-n", "5"});
 *   intent.putExtra("com.termux.RUN_COMMAND_WORKDIR", "/data/data/com.termux/files/home");
 *   intent.putExtra("com.termux.RUN_COMMAND_BACKGROUND", false);
 *   startService(intent);
 *
 * Sample code to run command "top" with "am startservice" command:
 * am startservice --user 0 -n com.termux/com.termux.app.RunCommandService 
 * -a com.termux.RUN_COMMAND 
 * --es com.termux.RUN_COMMAND_PATH '/data/data/com.termux/files/usr/bin/top' 
 * --esa com.termux.RUN_COMMAND_ARGUMENTS '-n,5' 
 * --es com.termux.RUN_COMMAND_WORKDIR '/data/data/com.termux/files/home'
 * --ez com.termux.RUN_COMMAND_BACKGROUND 'false'
 */
 public class RunCommandService extends Service {
    public static final String RUN_COMMAND_ACTION = "com.termux.RUN_COMMAND";
    public static final String RUN_COMMAND_PATH = "com.termux.RUN_COMMAND_PATH";
    public static final String RUN_COMMAND_ARGUMENTS = "com.termux.RUN_COMMAND_ARGUMENTS";
    public static final String RUN_COMMAND_WORKDIR = "com.termux.RUN_COMMAND_WORKDIR";
    public static final String RUN_COMMAND_BACKGROUND = "com.termux.RUN_COMMAND_BACKGROUND";
    private static final String NOTIFICATION_CHANNEL_ID = "termux_run_command_notification_channel";
    private static final int NOTIFICATION_ID = 1338;
    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() {
        runStartForeground();
    }
    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        // Run again in case service is already started and onCreate() is not called
        runStartForeground();
        if (allowExternalApps() && RUN_COMMAND_ACTION.equals(intent.getAction())) {
            Uri programUri = new Uri.Builder().scheme("com.termux.file").path(parsePath(intent.getStringExtra(RUN_COMMAND_PATH))).build();
            Intent execIntent = new Intent(TermuxService.ACTION_EXECUTE, programUri);
            execIntent.setClass(this, TermuxService.class);
            execIntent.putExtra(TermuxService.EXTRA_ARGUMENTS, intent.getStringArrayExtra(RUN_COMMAND_ARGUMENTS));
            execIntent.putExtra(TermuxService.EXTRA_CURRENT_WORKING_DIRECTORY, parsePath(intent.getStringExtra(RUN_COMMAND_WORKDIR)));
            execIntent.putExtra(TermuxService.EXTRA_EXECUTE_IN_BACKGROUND, intent.getBooleanExtra(RUN_COMMAND_BACKGROUND, false));
            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(NOTIFICATION_ID, buildNotification());
        }
    }
    private void runStopForeground() {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            stopForeground(true);
        }
    }
    private Notification buildNotification() {
        Notification.Builder builder = new Notification.Builder(this);
        builder.setContentTitle(getText(R.string.application_name) + " Run Command");
        builder.setSmallIcon(R.drawable.ic_service_notification);
        // Use a low priority:
        builder.setPriority(Notification.PRIORITY_LOW);
        // No need to show a timestamp:
        builder.setShowWhen(false);
        // Background color for small notification icon:
        builder.setColor(0xFF607D8B);
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            builder.setChannelId(NOTIFICATION_CHANNEL_ID);
        }
        return builder.build();
    }
    private void setupNotificationChannel() {
        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) return;
        String channelName = "Termux Run Command";
        int importance = NotificationManager.IMPORTANCE_LOW;
        NotificationChannel channel = new NotificationChannel(NOTIFICATION_CHANNEL_ID, channelName, importance);
        NotificationManager manager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
        manager.createNotificationChannel(channel);
    }
    private boolean allowExternalApps() {
        File propsFile = new File(TermuxService.HOME_PATH + "/.termux/termux.properties");
        if (!propsFile.exists())
            propsFile = new File(TermuxService.HOME_PATH + "/.config/termux/termux.properties");
        Properties props = new Properties();
        try {
            if (propsFile.isFile() && propsFile.canRead()) {
                try (FileInputStream in = new FileInputStream(propsFile)) {
                    props.load(new InputStreamReader(in, StandardCharsets.UTF_8));
                }
            }
        } catch (Exception e) {
            Log.e("termux", "Error loading props", e);
        }
        return props.getProperty("allow-external-apps", "false").equals("true");
    }
    /** Replace "$PREFIX/" or "~/" prefix with termux absolute paths */
    private String parsePath(String path) {
        if(path != null && !path.isEmpty()) {
            path = path.replaceAll("^\\$PREFIX\\/", TermuxService.PREFIX_PATH + "/");
            path = path.replaceAll("^~\\/", TermuxService.HOME_PATH + "/");
        }
        return path;
    }
 }
--- a/app/src/main/java/com/termux/app/TermuxActivity.java
+++ b/app/src/main/java/com/termux/app/TermuxActivity.java
@@ -11,8 +11,6 @@ import android.content.ClipData;
 import android.content.ClipboardManager;
 import android.content.ComponentName;
 import android.content.Context;
 import android.content.DialogInterface;
 import android.content.DialogInterface.OnShowListener;
 import android.content.Intent;
 import android.content.IntentFilter;
 import android.content.ServiceConnection;
@@ -26,12 +24,6 @@ import android.net.Uri;
 import android.os.Build;
 import android.os.Bundle;
 import android.os.IBinder;
 import android.os.Vibrator;
 import android.support.annotation.NonNull;
 import android.support.annotation.Nullable;
 import android.support.v4.view.PagerAdapter;
 import android.support.v4.view.ViewPager;
 import android.support.v4.widget.DrawerLayout;
 import android.text.SpannableString;
 import android.text.Spanned;
 import android.text.TextUtils;
@@ -40,21 +32,14 @@ import android.util.Log;
 import android.view.ContextMenu;
 import android.view.ContextMenu.ContextMenuInfo;
 import android.view.Gravity;
 import android.view.KeyEvent;
 import android.view.LayoutInflater;
 import android.view.Menu;
 import android.view.MenuItem;
 import android.view.View;
 import android.view.View.OnClickListener;
 import android.view.View.OnLongClickListener;
 import android.view.ViewGroup;
 import android.view.WindowManager;
-import android.view.animation.Animation;
+import android.view.autofill.AutofillManager;
 import android.view.animation.AnimationUtils;
 import android.view.inputmethod.InputMethodManager;
 import android.widget.AdapterView;
 import android.widget.AdapterView.OnItemClickListener;
 import android.widget.AdapterView.OnItemLongClickListener;
 import android.widget.ArrayAdapter;
 import android.widget.EditText;
 import android.widget.ListView;
@@ -75,10 +60,17 @@ import java.io.InputStream;
 import java.util.Arrays;
 import java.util.Collections;
 import java.util.LinkedHashSet;
 import java.util.List;
 import java.util.Properties;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.drawerlayout.widget.DrawerLayout;
 import androidx.viewpager.widget.PagerAdapter;
 import androidx.viewpager.widget.ViewPager;
 /**
 * A terminal emulator activity.
 * <p/>
@@ -91,14 +83,17 @@ import java.util.regex.Pattern;
 */
 public final class TermuxActivity extends Activity implements ServiceConnection {
    public static final String TERMUX_FAILSAFE_SESSION_ACTION = "com.termux.app.failsafe_session";
    private static final int CONTEXTMENU_SELECT_URL_ID = 0;
    private static final int CONTEXTMENU_SHARE_TRANSCRIPT_ID = 1;
    private static final int CONTEXTMENU_PASTE_ID = 3;
    private static final int CONTEXTMENU_KILL_PROCESS_ID = 4;
    private static final int CONTEXTMENU_RESET_TERMINAL_ID = 5;
    private static final int CONTEXTMENU_STYLING_ID = 6;
    private static final int CONTEXTMENU_TOGGLE_FULLSCREEN_ID = 7;
    private static final int CONTEXTMENU_HELP_ID = 8;
    private static final int CONTEXTMENU_TOGGLE_KEEP_SCREEN_ON = 9;
    private static final int CONTEXTMENU_AUTOFILL_ID = 10;
    private static final int MAX_SESSIONS = 8;
@@ -113,8 +108,6 @@ public final class TermuxActivity extends Activity implements ServiceConnection
    ExtraKeysView mExtraKeysView;
    final FullScreenHelper mFullScreenHelper = new FullScreenHelper(this);
    TermuxPreferences mSettings;
    /**
@@ -136,13 +129,13 @@ public final class TermuxActivity extends Activity implements ServiceConnection
     */
    boolean mIsVisible;
    boolean mIsUsingBlackUI;
    final SoundPool mBellSoundPool = new SoundPool.Builder().setMaxStreams(1).setAudioAttributes(
        new AudioAttributes.Builder().setContentType(AudioAttributes.CONTENT_TYPE_SONIFICATION)
            .setUsage(AudioAttributes.USAGE_ASSISTANCE_SONIFICATION).build()).build();
    int mBellSoundId;
    Animation mOnBellAnimation;
    private final BroadcastReceiver mBroadcastReceiever = new BroadcastReceiver() {
        @Override
        public void onReceive(Context context, Intent intent) {
@@ -155,13 +148,16 @@ public final class TermuxActivity extends Activity implements ServiceConnection
                }
                checkForFontAndColors();
                mSettings.reloadFromProperties(TermuxActivity.this);
                if (mExtraKeysView != null) {
                    mExtraKeysView.reload(mSettings.mExtraKeys);
                }
            }
        }
    };
    void checkForFontAndColors() {
        try {
            // Hard-coded paths since this file is used also in Termux:Float.
            @SuppressLint("SdCardPath") File fontFile = new File("/data/data/com.termux/files/home/.termux/font.ttf");
            @SuppressLint("SdCardPath") File colorsFile = new File("/data/data/com.termux/files/home/.termux/colors.properties");
@@ -194,39 +190,49 @@ public final class TermuxActivity extends Activity implements ServiceConnection
    }
    /** For processes to access shared internal storage (/sdcard) we need this permission. */
    @TargetApi(Build.VERSION_CODES.M)
    public boolean ensureStoragePermissionGranted() {
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+        if (checkSelfPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED) {
            if (checkSelfPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED) {
                return true;
            } else {
                requestPermissions(new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, REQUESTCODE_PERMISSION_STORAGE);
                return false;
            }
        } else {
            // Always granted before Android 6.0.
            return true;
        } else {
            requestPermissions(new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, REQUESTCODE_PERMISSION_STORAGE);
            return false;
        }
    }
    @Override
    public void onCreate(Bundle bundle) {
        mSettings = new TermuxPreferences(this);
        mIsUsingBlackUI = mSettings.isUsingBlackUI();
        if (mIsUsingBlackUI) {
            this.setTheme(R.style.Theme_Termux_Black);
        } else {
            this.setTheme(R.style.Theme_Termux);
        }
        super.onCreate(bundle);
        mOnBellAnimation = AnimationUtils.loadAnimation(this, R.anim.on_bell);
        mSettings = new TermuxPreferences(this);
        setContentView(R.layout.drawer_layout);
-        mTerminalView = (TerminalView) findViewById(R.id.terminal_view);
+
-        mTerminalView.setOnKeyListener(new TermuxKeyListener(this));
+        if (mIsUsingBlackUI) {
            findViewById(R.id.left_drawer).setBackgroundColor(
                getResources().getColor(android.R.color.background_dark)
            );
        }
        mTerminalView = findViewById(R.id.terminal_view);
        mTerminalView.setOnKeyListener(new TermuxViewClient(this));
        mTerminalView.setTextSize(mSettings.getFontSize());
-        mFullScreenHelper.setImmersive(mSettings.isFullScreen());
+        mTerminalView.setKeepScreenOn(mSettings.isScreenAlwaysOn());
        mTerminalView.requestFocus();
-        final ViewPager viewPager = (ViewPager) findViewById(R.id.viewpager);
+        final ViewPager viewPager = findViewById(R.id.viewpager);
-        if (mSettings.isShowExtraKeys()) viewPager.setVisibility(View.VISIBLE);
+        if (mSettings.mShowExtraKeys) viewPager.setVisibility(View.VISIBLE);
        ViewGroup.LayoutParams layoutParams = viewPager.getLayoutParams();
        layoutParams.height = layoutParams.height * (mSettings.mExtraKeys == null ? 0 : mSettings.mExtraKeys.getMatrix().length);
        viewPager.setLayoutParams(layoutParams);
        viewPager.setAdapter(new PagerAdapter() {
            @Override
@@ -235,33 +241,34 @@ public final class TermuxActivity extends Activity implements ServiceConnection
            }
            @Override
-            public boolean isViewFromObject(View view, Object object) {
+            public boolean isViewFromObject(@NonNull View view, @NonNull Object object) {
                return view == object;
            }
            @NonNull
            @Override
-            public Object instantiateItem(ViewGroup collection, int position) {
+            public Object instantiateItem(@NonNull ViewGroup collection, int position) {
                LayoutInflater inflater = LayoutInflater.from(TermuxActivity.this);
                View layout;
                if (position == 0) {
                    layout = mExtraKeysView = (ExtraKeysView) inflater.inflate(R.layout.extra_keys_main, collection, false);
                    mExtraKeysView.reload(mSettings.mExtraKeys);
                } else {
                    layout = inflater.inflate(R.layout.extra_keys_right, collection, false);
-                    final EditText editText = (EditText) layout.findViewById(R.id.text_input);
+                    final EditText editText = layout.findViewById(R.id.text_input);
-                    editText.setOnEditorActionListener(new TextView.OnEditorActionListener() {
+                    editText.setOnEditorActionListener((v, actionId, event) -> {
-                        @Override
+                        TerminalSession session = getCurrentTermSession();
-                        public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
+                        if (session != null) {
-                            TerminalSession session = getCurrentTermSession();
+                            if (session.isRunning()) {
-                            if (session != null) {
+                                String textToSend = editText.getText().toString();
-                                if (session.isRunning()) {
+                                if (textToSend.length() == 0) textToSend = "\r";
-                                    session.write(editText.getText().toString() + "\n");
+                                session.write(textToSend);
-                                } else {
+                            } else {
-                                    removeFinishedSession(session);
+                                removeFinishedSession(session);
                                }
                                editText.setText("");
                            }
-                            return true;
+                            editText.setText("");
                        }
                        return true;
                    });
                }
                collection.addView(layout);
@@ -269,7 +276,7 @@ public final class TermuxActivity extends Activity implements ServiceConnection
            }
            @Override
-            public void destroyItem(ViewGroup collection, int position, Object view) {
+            public void destroyItem(@NonNull ViewGroup collection, int position, @NonNull Object view) {
                collection.removeView((View) view);
            }
        });
@@ -280,54 +287,30 @@ public final class TermuxActivity extends Activity implements ServiceConnection
                if (position == 0) {
                    mTerminalView.requestFocus();
                } else {
-                    final EditText editText = (EditText) viewPager.findViewById(R.id.text_input);
+                    final EditText editText = viewPager.findViewById(R.id.text_input);
                    if (editText != null) editText.requestFocus();
                }
            }
        });
        View newSessionButton = findViewById(R.id.new_session_button);
-        newSessionButton.setOnClickListener(new OnClickListener() {
+        newSessionButton.setOnClickListener(v -> addNewSession(false, null));
-            @Override
+        newSessionButton.setOnLongClickListener(v -> {
-            public void onClick(View v) {
+            DialogUtils.textInput(TermuxActivity.this, R.string.session_new_named_title, null, R.string.session_new_named_positive_button,
-                addNewSession(false, null);
+                text -> addNewSession(false, text), R.string.new_session_failsafe, text -> addNewSession(true, text)
-            }
+                , -1, null, null);
-        });
+            return true;
        newSessionButton.setOnLongClickListener(new OnLongClickListener() {
            @Override
            public boolean onLongClick(View v) {
                DialogUtils.textInput(TermuxActivity.this, R.string.session_new_named_title, null, R.string.session_new_named_positive_button,
                    new DialogUtils.TextSetListener() {
                        @Override
                        public void onTextSet(String text) {
                            addNewSession(false, text);
                        }
                    }, R.string.new_session_failsafe, new DialogUtils.TextSetListener() {
                        @Override
                        public void onTextSet(String text) {
                            addNewSession(true, text);
                        }
                    }
                    , -1, null, null);
                return true;
            }
        });
-        findViewById(R.id.toggle_keyboard_button).setOnClickListener(new OnClickListener() {
+        findViewById(R.id.toggle_keyboard_button).setOnClickListener(v -> {
-            @Override
+            InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
-            public void onClick(View v) {
+            imm.toggleSoftInput(InputMethodManager.SHOW_IMPLICIT, 0);
-                InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
+            getDrawer().closeDrawers();
                imm.toggleSoftInput(InputMethodManager.SHOW_IMPLICIT, 0);
                getDrawer().closeDrawers();
            }
        });
-        findViewById(R.id.toggle_keyboard_button).setOnLongClickListener(new OnLongClickListener() {
+        findViewById(R.id.toggle_keyboard_button).setOnLongClickListener(v -> {
-            @Override
+            toggleShowExtraKeys();
-            public boolean onLongClick(View v) {
+            return true;
                toggleShowExtraKeys();
                return true;
            }
        });
        registerForContextMenu(mTerminalView);
@@ -344,7 +327,7 @@ public final class TermuxActivity extends Activity implements ServiceConnection
    }
    void toggleShowExtraKeys() {
-        final ViewPager viewPager = (ViewPager) findViewById(R.id.viewpager);
+        final ViewPager viewPager = findViewById(R.id.viewpager);
        final boolean showNow = mSettings.toggleShowExtraKeys(TermuxActivity.this);
        viewPager.setVisibility(showNow ? View.VISIBLE : View.GONE);
        if (showNow && viewPager.getCurrentItem() == 1) {
@@ -395,13 +378,27 @@ public final class TermuxActivity extends Activity implements ServiceConnection
                    if (indexOfSession >= 0)
                        showToast(toToastTitle(finishedSession) + " - exited", true);
                }
                if (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 (mTermService.getSessions().size() > 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);
                    }
                }
                mListViewAdapter.notifyDataSetChanged();
            }
            @Override
            public void onClipboardText(TerminalSession session, String text) {
                if (!mIsVisible) return;
                showToast("Clipboard:\n\"" + text + "\"", false);
                ClipboardManager clipboard = (ClipboardManager) getSystemService(Context.CLIPBOARD_SERVICE);
                clipboard.setPrimaryClip(new ClipData(null, new String[]{"text/plain"}, new ClipData.Item(text)));
            }
@@ -410,14 +407,12 @@ public final class TermuxActivity extends Activity implements ServiceConnection
            public void onBell(TerminalSession session) {
                if (!mIsVisible) return;
                mTerminalView.startAnimation(mOnBellAnimation);
                switch (mSettings.mBellBehaviour) {
                    case TermuxPreferences.BELL_BEEP:
                        mBellSoundPool.play(mBellSoundId, 1.f, 1.f, 1, 0, 1.f);
                        break;
                    case TermuxPreferences.BELL_VIBRATE:
-                        ((Vibrator) getSystemService(VIBRATOR_SERVICE)).vibrate(50);
+                        BellUtil.getInstance(TermuxActivity.this).doBell();
                        break;
                    case TermuxPreferences.BELL_IGNORE:
                        // Ignore the bell character.
@@ -432,7 +427,7 @@ public final class TermuxActivity extends Activity implements ServiceConnection
            }
        };
-        ListView listView = (ListView) findViewById(R.id.left_drawer_list);
+        ListView listView = findViewById(R.id.left_drawer_list);
        mListViewAdapter = new ArrayAdapter<TerminalSession>(getApplicationContext(), R.layout.line_in_drawer, mTermService.getSessions()) {
            final StyleSpan boldSpan = new StyleSpan(Typeface.BOLD);
            final StyleSpan italicSpan = new StyleSpan(Typeface.ITALIC);
@@ -449,8 +444,12 @@ public final class TermuxActivity extends Activity implements ServiceConnection
                TerminalSession sessionAtRow = getItem(position);
                boolean sessionRunning = sessionAtRow.isRunning();
-                TextView firstLineView = (TextView) row.findViewById(R.id.row_line);
+                TextView firstLineView = row.findViewById(R.id.row_line);
-
+                if (mIsUsingBlackUI) {
                    firstLineView.setBackground(
                        getResources().getDrawable(R.drawable.selected_session_background_black)
                    );
                }
                String name = sessionAtRow.mSessionName;
                String sessionTitle = sessionAtRow.getTitle();
@@ -470,51 +469,37 @@ public final class TermuxActivity extends Activity implements ServiceConnection
                } else {
                    firstLineView.setPaintFlags(firstLineView.getPaintFlags() | Paint.STRIKE_THRU_TEXT_FLAG);
                }
-                int color = sessionRunning || sessionAtRow.getExitStatus() == 0 ? Color.BLACK : Color.RED;
+                int defaultColor = mIsUsingBlackUI ? Color.WHITE : Color.BLACK;
                int color = sessionRunning || sessionAtRow.getExitStatus() == 0 ? defaultColor : Color.RED;
                firstLineView.setTextColor(color);
                return row;
            }
        };
        listView.setAdapter(mListViewAdapter);
-        listView.setOnItemClickListener(new OnItemClickListener() {
+        listView.setOnItemClickListener((parent, view, position, id) -> {
-            @Override
+            TerminalSession clickedSession = mListViewAdapter.getItem(position);
-            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
+            switchToSession(clickedSession);
-                TerminalSession clickedSession = mListViewAdapter.getItem(position);
+            getDrawer().closeDrawers();
                switchToSession(clickedSession);
                getDrawer().closeDrawers();
            }
        });
-        listView.setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() {
+        listView.setOnItemLongClickListener((parent, view, position, id) -> {
-            @Override
+            final TerminalSession selectedSession = mListViewAdapter.getItem(position);
-            public boolean onItemLongClick(AdapterView<?> parent, View view, final int position, long id) {
+            renameSession(selectedSession);
-                final TerminalSession selectedSession = mListViewAdapter.getItem(position);
+            return true;
                renameSession(selectedSession);
                return true;
            }
        });
        if (mTermService.getSessions().isEmpty()) {
            if (mIsVisible) {
-                TermuxInstaller.setupIfNeeded(TermuxActivity.this, new Runnable() {
+                TermuxInstaller.setupIfNeeded(TermuxActivity.this, () -> {
-                    @Override
+                    if (mTermService == null) return; // Activity might have been destroyed.
-                    public void run() {
+                    try {
-                        if (mTermService == null) return; // Activity might have been destroyed.
+                        Bundle bundle = getIntent().getExtras();
-                        try {
+                        boolean launchFailsafe = false;
-                            if (TermuxPreferences.isShowWelcomeDialog(TermuxActivity.this)) {
+                        if (bundle != null) {
-                                new AlertDialog.Builder(TermuxActivity.this).setTitle(R.string.welcome_dialog_title).setMessage(R.string.welcome_dialog_body)
+                            launchFailsafe = bundle.getBoolean(TERMUX_FAILSAFE_SESSION_ACTION, false);
                                    .setCancelable(false).setPositiveButton(android.R.string.ok, null)
                                    .setNegativeButton(R.string.welcome_dialog_dont_show_again_button, new DialogInterface.OnClickListener() {
                                        @Override
                                        public void onClick(DialogInterface dialog, int which) {
                                            TermuxPreferences.disableWelcomeDialog(TermuxActivity.this);
                                            dialog.dismiss();
                                        }
                                    }).show();
                            }
                            addNewSession(false, null);
                        } catch (WindowManager.BadTokenException e) {
                            // Activity finished - ignore.
                        }
                        addNewSession(launchFailsafe, null);
                    } catch (WindowManager.BadTokenException e) {
                        // Activity finished - ignore.
                    }
                });
            } else {
@@ -525,7 +510,8 @@ public final class TermuxActivity extends Activity implements ServiceConnection
            Intent i = getIntent();
            if (i != null && Intent.ACTION_RUN.equals(i.getAction())) {
                // Android 7.1 app shortcut from res/xml/shortcuts.xml.
-                addNewSession(false, null);
+                boolean failSafe = i.getBooleanExtra(TERMUX_FAILSAFE_SESSION_ACTION, false);
                addNewSession(failSafe, null);
            } else {
                switchToSession(getStoredCurrentSessionOrLast());
            }
@@ -545,21 +531,16 @@ public final class TermuxActivity extends Activity implements ServiceConnection
    @SuppressLint("InflateParams")
    void renameSession(final TerminalSession sessionToRename) {
-        DialogUtils.textInput(this, R.string.session_rename_title, sessionToRename.mSessionName, R.string.session_rename_positive_button, new DialogUtils.TextSetListener() {
+        DialogUtils.textInput(this, R.string.session_rename_title, sessionToRename.mSessionName, R.string.session_rename_positive_button, text -> {
-            @Override
+            sessionToRename.mSessionName = text;
-            public void onTextSet(String text) {
+            mListViewAdapter.notifyDataSetChanged();
                sessionToRename.mSessionName = text;
                mListViewAdapter.notifyDataSetChanged();
            }
        }, -1, null, -1, null, null);
    }
    @Override
    public void onServiceDisconnected(ComponentName name) {
-        if (mTermService != null) {
+        // Respect being stopped from the TermuxService notification action.
-            // Respect being stopped from the TermuxService notification action.
+        finish();
            finish();
        }
    }
    @Nullable
@@ -624,8 +605,9 @@ public final class TermuxActivity extends Activity implements ServiceConnection
            new AlertDialog.Builder(this).setTitle(R.string.max_terminals_reached_title).setMessage(R.string.max_terminals_reached_message)
                .setPositiveButton(android.R.string.ok, null).show();
        } else {
-            String executablePath = (failSafe ? "/system/bin/sh" : null);
+            TerminalSession currentSession = getCurrentTermSession();
-            TerminalSession newSession = mTermService.createTermSession(executablePath, null, null, failSafe);
+            String workingDirectory = (currentSession == null) ? null : currentSession.getCwd();
            TerminalSession newSession = mTermService.createTermSession(null, null, workingDirectory, failSafe);
            if (sessionName != null) {
                newSession.mSessionName = sessionName;
            }
@@ -663,7 +645,7 @@ public final class TermuxActivity extends Activity implements ServiceConnection
        final int indexOfSession = mTermService.getSessions().indexOf(session);
        showToast(toToastTitle(session), false);
        mListViewAdapter.notifyDataSetChanged();
-        final ListView lv = ((ListView) findViewById(R.id.left_drawer_list));
+        final ListView lv = findViewById(R.id.left_drawer_list);
        lv.setItemChecked(indexOfSession, true);
        lv.smoothScrollToPosition(indexOfSession);
    }
@@ -675,10 +657,16 @@ public final class TermuxActivity extends Activity implements ServiceConnection
        menu.add(Menu.NONE, CONTEXTMENU_SELECT_URL_ID, Menu.NONE, R.string.select_url);
        menu.add(Menu.NONE, CONTEXTMENU_SHARE_TRANSCRIPT_ID, Menu.NONE, R.string.select_all_and_share);
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            AutofillManager autofillManager = getSystemService(AutofillManager.class);
            if (autofillManager != null && autofillManager.isEnabled()) {
                menu.add(Menu.NONE, CONTEXTMENU_AUTOFILL_ID, Menu.NONE, R.string.autofill_password);
            }
        }
        menu.add(Menu.NONE, CONTEXTMENU_RESET_TERMINAL_ID, Menu.NONE, R.string.reset_terminal);
        menu.add(Menu.NONE, CONTEXTMENU_KILL_PROCESS_ID, Menu.NONE, getResources().getString(R.string.kill_process, getCurrentTermSession().getPid())).setEnabled(currentSession.isRunning());
        menu.add(Menu.NONE, CONTEXTMENU_TOGGLE_FULLSCREEN_ID, Menu.NONE, R.string.toggle_fullscreen).setCheckable(true).setChecked(mSettings.isFullScreen());
        menu.add(Menu.NONE, CONTEXTMENU_STYLING_ID, Menu.NONE, R.string.style_terminal);
        menu.add(Menu.NONE, CONTEXTMENU_TOGGLE_KEEP_SCREEN_ON, Menu.NONE, R.string.toggle_keep_screen_on).setCheckable(true).setChecked(mSettings.isScreenAlwaysOn());
        menu.add(Menu.NONE, CONTEXTMENU_HELP_ID, Menu.NONE, R.string.help);
    }
@@ -690,65 +678,126 @@ public final class TermuxActivity extends Activity implements ServiceConnection
    }
    static LinkedHashSet<CharSequence> extractUrls(String text) {
-        // Pattern for recognizing a URL, based off RFC 3986
+
-        // http://stackoverflow.com/questions/5713558/detect-and-extract-url-from-a-string
+        StringBuilder regex_sb = new StringBuilder();
        regex_sb.append("(");                       // Begin first matching group.
        regex_sb.append("(?:");                     // Begin scheme group.
        regex_sb.append("dav|");                    // The DAV proto.
        regex_sb.append("dict|");                   // The DICT proto.
        regex_sb.append("dns|");                    // The DNS proto.
        regex_sb.append("file|");                   // File path.
        regex_sb.append("finger|");                 // The Finger proto.
        regex_sb.append("ftp(?:s?)|");              // The FTP proto.
        regex_sb.append("git|");                    // The Git proto.
        regex_sb.append("gopher|");                 // The Gopher proto.
        regex_sb.append("http(?:s?)|");             // The HTTP proto.
        regex_sb.append("imap(?:s?)|");             // The IMAP proto.
        regex_sb.append("irc(?:[6s]?)|");           // The IRC proto.
        regex_sb.append("ip[fn]s|");                // The IPFS proto.
        regex_sb.append("ldap(?:s?)|");             // The LDAP proto.
        regex_sb.append("pop3(?:s?)|");             // The POP3 proto.
        regex_sb.append("redis(?:s?)|");            // The Redis proto.
        regex_sb.append("rsync|");                  // The Rsync proto.
        regex_sb.append("rtsp(?:[su]?)|");          // The RTSP proto.
        regex_sb.append("sftp|");                   // The SFTP proto.
        regex_sb.append("smb(?:s?)|");              // The SAMBA proto.
        regex_sb.append("smtp(?:s?)|");             // The SMTP proto.
        regex_sb.append("svn(?:(?:\\+ssh)?)|");     // The Subversion proto.
        regex_sb.append("tcp|");                    // The TCP proto.
        regex_sb.append("telnet|");                 // The Telnet proto.
        regex_sb.append("tftp|");                   // The TFTP proto.
        regex_sb.append("udp|");                    // The UDP proto.
        regex_sb.append("vnc|");                    // The VNC proto.
        regex_sb.append("ws(?:s?)");                // The Websocket proto.
        regex_sb.append(")://");                    // End scheme group.
        regex_sb.append(")");                       // End first matching group.
        // Begin second matching group.
        regex_sb.append("(");
        // User name and/or password in format 'user:pass@'.
        regex_sb.append("(?:\\S+(?::\\S*)?@)?");
        // Begin host group.
        regex_sb.append("(?:");
        // IP address (from http://www.regular-expressions.info/examples.html).
        regex_sb.append("(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)|");
        // Host name or domain.
        regex_sb.append("(?:(?:[a-z\\u00a1-\\uffff0-9]-*)*[a-z\\u00a1-\\uffff0-9]+)(?:(?:\\.(?:[a-z\\u00a1-\\uffff0-9]-*)*[a-z\\u00a1-\\uffff0-9]+)*(?:\\.(?:[a-z\\u00a1-\\uffff]{2,})))?|");
        // Just path. Used in case of 'file://' scheme.
        regex_sb.append("/(?:(?:[a-z\\u00a1-\\uffff0-9]-*)*[a-z\\u00a1-\\uffff0-9]+)");
        // End host group.
        regex_sb.append(")");
        // Port number.
        regex_sb.append("(?::\\d{1,5})?");
        // Resource path with optional query string.
        regex_sb.append("(?:/[a-zA-Z0-9:@%\\-._~!$&()*+,;=?/]*)?");
        // Fragment.
        regex_sb.append("(?:#[a-zA-Z0-9:@%\\-._~!$&()*+,;=?/]*)?");
        // End second matching group.
        regex_sb.append(")");
        final Pattern urlPattern = Pattern.compile(
-            "(?:^|[\\W])((ht|f)tp(s?)://|www\\.)" + "(([\\w\\-]+\\.)+?([\\w\\-.~]+/?)*" + "[\\p{Alnum}.,%_=?&#\\-+()\\[\\]\\*$~@!:/{};']*)",
+            regex_sb.toString(),
            Pattern.CASE_INSENSITIVE | Pattern.MULTILINE | Pattern.DOTALL);
        LinkedHashSet<CharSequence> urlSet = new LinkedHashSet<>();
        Matcher matcher = urlPattern.matcher(text);
        while (matcher.find()) {
            int matchStart = matcher.start(1);
            int matchEnd = matcher.end();
            String url = text.substring(matchStart, matchEnd);
            urlSet.add(url);
        }
        return urlSet;
    }
    void showUrlSelection() {
-        String text = getCurrentTermSession().getEmulator().getScreen().getTranscriptText();
+        String text = getCurrentTermSession().getEmulator().getScreen().getTranscriptTextWithFullLinesJoined();
        LinkedHashSet<CharSequence> urlSet = extractUrls(text);
        if (urlSet.isEmpty()) {
            new AlertDialog.Builder(this).setMessage(R.string.select_url_no_found).show();
            return;
        }
-        final CharSequence[] urls = urlSet.toArray(new CharSequence[urlSet.size()]);
+        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(TermuxActivity.this).setItems(urls, new DialogInterface.OnClickListener() {
+        final AlertDialog dialog = new AlertDialog.Builder(TermuxActivity.this).setItems(urls, (di, which) -> {
-            @Override
+            String url = (String) urls[which];
-            public void onClick(DialogInterface di, int which) {
+            ClipboardManager clipboard = (ClipboardManager) getSystemService(Context.CLIPBOARD_SERVICE);
-                String url = (String) urls[which];
+            clipboard.setPrimaryClip(new ClipData(null, new String[]{"text/plain"}, new ClipData.Item(url)));
-                ClipboardManager clipboard = (ClipboardManager) getSystemService(Context.CLIPBOARD_SERVICE);
+            Toast.makeText(TermuxActivity.this, R.string.select_url_copied_to_clipboard, Toast.LENGTH_LONG).show();
                clipboard.setPrimaryClip(new ClipData(null, new String[]{"text/plain"}, new ClipData.Item(url)));
                Toast.makeText(TermuxActivity.this, R.string.select_url_copied_to_clipboard, Toast.LENGTH_LONG).show();
            }
        }).setTitle(R.string.select_url_dialog_title).create();
        // Long press to open URL:
-        dialog.setOnShowListener(new OnShowListener() {
+        dialog.setOnShowListener(di -> {
-            @Override
+            ListView lv = dialog.getListView(); // this is a ListView with your "buds" in it
-            public void onShow(DialogInterface di) {
+            lv.setOnItemLongClickListener((parent, view, position, id) -> {
-                ListView lv = dialog.getListView(); // this is a ListView with your "buds" in it
+                dialog.dismiss();
-                lv.setOnItemLongClickListener(new OnItemLongClickListener() {
+                String url = (String) urls[position];
-                    @Override
+                Intent i = new Intent(Intent.ACTION_VIEW, Uri.parse(url));
-                    public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) {
+                try {
-                        dialog.dismiss();
+                    startActivity(i, null);
-                        String url = (String) urls[position];
+                } catch (ActivityNotFoundException e) {
-                        Intent i = new Intent(Intent.ACTION_VIEW, Uri.parse(url));
+                    // If no applications match, Android displays a system message.
-                        try {
+                    startActivity(Intent.createChooser(i, null));
-                            startActivity(i, null);
+                }
-                        } catch (ActivityNotFoundException e) {
+                return true;
-                            // If no applications match, Android displays a system message.
+            });
                            startActivity(Intent.createChooser(i, null));
                        }
                        return true;
                    }
                });
            }
        });
        dialog.show();
@@ -766,7 +815,18 @@ public final class TermuxActivity extends Activity implements ServiceConnection
                if (session != null) {
                    Intent intent = new Intent(Intent.ACTION_SEND);
                    intent.setType("text/plain");
-                    intent.putExtra(Intent.EXTRA_TEXT, session.getEmulator().getScreen().getTranscriptText().trim());
+                    String transcriptText = session.getEmulator().getScreen().getTranscriptTextWithoutJoinedLines().trim();
                    // See https://github.com/termux/termux-app/issues/1166.
                    final int MAX_LENGTH = 100_000;
                    if (transcriptText.length() > MAX_LENGTH) {
                        int cutOffIndex = transcriptText.length() - MAX_LENGTH;
                        int nextNewlineIndex = transcriptText.indexOf('\n', cutOffIndex);
                        if (nextNewlineIndex != -1 && nextNewlineIndex != transcriptText.length() - 1) {
                            cutOffIndex = nextNewlineIndex + 1;
                        }
                        transcriptText = transcriptText.substring(cutOffIndex).trim();
                    }
                    intent.putExtra(Intent.EXTRA_TEXT, transcriptText);
                    intent.putExtra(Intent.EXTRA_SUBJECT, getString(R.string.share_transcript_title));
                    startActivity(Intent.createChooser(intent, getString(R.string.share_transcript_chooser_title)));
                }
@@ -778,12 +838,9 @@ public final class TermuxActivity extends Activity implements ServiceConnection
                final AlertDialog.Builder b = new AlertDialog.Builder(this);
                b.setIcon(android.R.drawable.ic_dialog_alert);
                b.setMessage(R.string.confirm_kill_process);
-                b.setPositiveButton(android.R.string.yes, new DialogInterface.OnClickListener() {
+                b.setPositiveButton(android.R.string.yes, (dialog, id) -> {
-                    @Override
+                    dialog.dismiss();
-                    public void onClick(DialogInterface dialog, int id) {
+                    getCurrentTermSession().finishIfRunning();
                        dialog.dismiss();
                        getCurrentTermSession().finishIfRunning();
                    }
                });
                b.setNegativeButton(android.R.string.no, null);
                b.show();
@@ -804,21 +861,31 @@ public final class TermuxActivity extends Activity implements ServiceConnection
                    // The startActivity() call is not documented to throw IllegalArgumentException.
                    // However, crash reporting shows that it sometimes does, so catch it here.
                    new AlertDialog.Builder(this).setMessage(R.string.styling_not_installed)
-                        .setPositiveButton(R.string.styling_install, new DialogInterface.OnClickListener() {
+                        .setPositiveButton(R.string.styling_install, (dialog, which) -> startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse("https://f-droid.org/en/packages/com.termux.styling/")))).setNegativeButton(android.R.string.cancel, null).show();
                            @Override
                            public void onClick(DialogInterface dialog, int which) {
                                startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse("http://play.google.com/store/apps/details?id=com.termux.styling")));
                            }
                        }).setNegativeButton(android.R.string.cancel, null).show();
                }
            }
            return true;
            case CONTEXTMENU_TOGGLE_FULLSCREEN_ID:
                toggleImmersive();
                return true;
            }
            case CONTEXTMENU_HELP_ID:
                startActivity(new Intent(this, TermuxHelpActivity.class));
                return true;
            case CONTEXTMENU_TOGGLE_KEEP_SCREEN_ON: {
                if(mTerminalView.getKeepScreenOn()) {
                    mTerminalView.setKeepScreenOn(false);
                    mSettings.setScreenAlwaysOn(this, false);
                } else {
                    mTerminalView.setKeepScreenOn(true);
                    mSettings.setScreenAlwaysOn(this, true);
                }
                return true;
            }
            case CONTEXTMENU_AUTOFILL_ID: {
                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
                    AutofillManager autofillManager = getSystemService(AutofillManager.class);
                    if (autofillManager != null && autofillManager.isEnabled()) {
                        autofillManager.requestAutofill(mTerminalView);
                    }
                }
            }
            default:
                return super.onContextItemSelected(item);
        }
@@ -831,12 +898,6 @@ public final class TermuxActivity extends Activity implements ServiceConnection
        }
    }
    void toggleImmersive() {
        boolean newValue = !mSettings.isFullScreen();
        mSettings.setFullScreen(this, newValue);
        mFullScreenHelper.setImmersive(newValue);
    }
    void changeFontSize(boolean increase) {
        mSettings.changeFontSize(this, increase);
        mTerminalView.setTextSize(mSettings.getFontSize());
@@ -855,9 +916,8 @@ public final class TermuxActivity extends Activity implements ServiceConnection
    public TerminalSession getStoredCurrentSessionOrLast() {
        TerminalSession stored = TermuxPreferences.getCurrentSession(this);
        if (stored != null) return stored;
-        int numberOfSessions = mTermService.getSessions().size();
+        List<TerminalSession> sessions = mTermService.getSessions();
-        if (numberOfSessions == 0) return null;
+        return sessions.isEmpty() ? null : sessions.get(sessions.size() - 1);
        return mTermService.getSessions().get(numberOfSessions - 1);
    }
    /** Show a toast and dismiss the last one if still visible. */
--- a/app/src/main/java/com/termux/app/TermuxHelpActivity.java
+++ b/app/src/main/java/com/termux/app/TermuxHelpActivity.java
@@ -39,7 +39,7 @@ public final class TermuxHelpActivity extends Activity {
        mWebView.setWebViewClient(new WebViewClient() {
            @Override
            public boolean shouldOverrideUrlLoading(WebView view, String url) {
-                if (url.startsWith("https://termux.com")) {
+                if (url.startsWith("https://wiki.termux.com")) {
                    // Inline help.
                    setContentView(progressLayout);
                    return false;
@@ -60,7 +60,7 @@ public final class TermuxHelpActivity extends Activity {
                setContentView(mWebView);
            }
        });
-        mWebView.loadUrl("https://termux.com/help.html");
+        mWebView.loadUrl("https://wiki.termux.com/wiki/Main_Page");
    }
    @Override
--- a/app/src/main/java/com/termux/app/TermuxInstaller.java
+++ b/app/src/main/java/com/termux/app/TermuxInstaller.java
@@ -4,10 +4,6 @@ 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.Build;
 import android.os.Environment;
 import android.os.UserManager;
 import android.system.Os;
@@ -19,13 +15,12 @@ import com.termux.R;
 import com.termux.terminal.EmulatorDebug;
 import java.io.BufferedReader;
 import java.io.ByteArrayInputStream;
 import java.io.File;
 import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.InputStreamReader;
 import java.net.MalformedURLException;
 import java.net.URL;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
 import java.util.zip.ZipEntry;
 import java.util.zip.ZipInputStream;
@@ -40,10 +35,10 @@ import java.util.zip.ZipInputStream;
 * <p/>
 * (3) A staging folder, $STAGING_PREFIX, is {@link #deleteFolder(File)} if left over from broken installation below.
 * <p/>
- * (4) The architecture is determined and an appropriate bootstrap zip url is determined in {@link #determineZipUrl()}.
+ * (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/>
@@ -59,12 +54,7 @@ final class TermuxInstaller {
        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() {
+                .setOnDismissListener(dialog -> System.exit(0)).setPositiveButton(android.R.string.ok, null).show();
                    @Override
                    public void onDismiss(DialogInterface dialog) {
                        System.exit(0);
                    }
                }).setPositiveButton(android.R.string.ok, null).show();
            return;
        }
@@ -89,8 +79,8 @@ final class TermuxInstaller {
                    final byte[] buffer = new byte[8096];
                    final List<Pair<String, String>> symlinks = new ArrayList<>(50);
-                    final URL zipUrl = determineZipUrl();
+                    final byte[] zipBytes = loadZipBytes();
-                    try (ZipInputStream zipInput = new ZipInputStream(zipUrl.openStream())) {
+                    try (ZipInputStream zipInput = new ZipInputStream(new ByteArrayInputStream(zipBytes))) {
                        ZipEntry zipEntry;
                        while ((zipEntry = zipInput.getNextEntry()) != null) {
                            if (zipEntry.getName().equals("SYMLINKS.txt")) {
@@ -103,14 +93,17 @@ final class TermuxInstaller {
                                    String oldPath = parts[0];
                                    String newPath = STAGING_PREFIX_PATH + "/" + parts[1];
                                    symlinks.add(Pair.create(oldPath, newPath));
                                    ensureDirectoryExists(new File(newPath).getParentFile());
                                }
                            } else {
                                String zipEntryName = zipEntry.getName();
                                File targetFile = new File(STAGING_PREFIX_PATH, zipEntryName);
-                                if (zipEntry.isDirectory()) {
+                                boolean isDirectory = zipEntry.isDirectory();
-                                    if (!targetFile.mkdirs())
+
-                                        throw new RuntimeException("Failed to create directory: " + targetFile.getAbsolutePath());
+                                ensureDirectoryExists(isDirectory ? targetFile : targetFile.getParentFile());
-                                } else {
+
                                if (!isDirectory) {
                                    try (FileOutputStream outStream = new FileOutputStream(targetFile)) {
                                        int readBytes;
                                        while ((readBytes = zipInput.read(buffer)) != -1)
@@ -135,46 +128,29 @@ final class TermuxInstaller {
                        throw new RuntimeException("Unable to rename staging folder");
                    }
-                    activity.runOnUiThread(new Runnable() {
+                    activity.runOnUiThread(whenDone);
                        @Override
                        public void run() {
                            whenDone.run();
                        }
                    });
                } catch (final Exception e) {
                    Log.e(EmulatorDebug.LOG_TAG, "Bootstrap error", e);
-                    activity.runOnUiThread(new Runnable() {
+                    activity.runOnUiThread(() -> {
-                        @Override
+                        try {
-                        public void run() {
+                            new AlertDialog.Builder(activity).setTitle(R.string.bootstrap_error_title).setMessage(R.string.bootstrap_error_body)
-                            try {
+                                .setNegativeButton(R.string.bootstrap_error_abort, (dialog, which) -> {
-                                new AlertDialog.Builder(activity).setTitle(R.string.bootstrap_error_title).setMessage(R.string.bootstrap_error_body)
+                                    dialog.dismiss();
-                                    .setNegativeButton(R.string.bootstrap_error_abort, new OnClickListener() {
+                                    activity.finish();
-                                        @Override
+                                }).setPositiveButton(R.string.bootstrap_error_try_again, (dialog, which) -> {
-                                        public void onClick(DialogInterface dialog, int which) {
+                                    dialog.dismiss();
-                                            dialog.dismiss();
+                                    TermuxInstaller.setupIfNeeded(activity, whenDone);
                                            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) {
+                        } catch (WindowManager.BadTokenException e1) {
-                                // Activity already dismissed - ignore.
+                            // Activity already dismissed - ignore.
                            }
                        }
                    });
                } finally {
-                    activity.runOnUiThread(new Runnable() {
+                    activity.runOnUiThread(() -> {
-                        @Override
+                        try {
-                        public void run() {
+                            progress.dismiss();
-                            try {
+                        } catch (RuntimeException e) {
-                                progress.dismiss();
+                            // Activity already dismissed - ignore.
                            } catch (RuntimeException e) {
                                // Activity already dismissed - ignore.
                            }
                        }
                    });
                }
@@ -182,55 +158,51 @@ final class TermuxInstaller {
        }.start();
    }
-    /** Get bootstrap zip url for this systems cpu architecture. */
+    private static void ensureDirectoryExists(File directory) {
-    static URL determineZipUrl() throws MalformedURLException {
+        if (!directory.isDirectory() && !directory.mkdirs()) {
-        String archName = determineTermuxArchName();
+            throw new RuntimeException("Unable to create directory: " + directory.getAbsolutePath());
-        return new URL("https://termux.net/bootstrap/bootstrap-" + archName + ".zip");
+        }
    }
-    private static String determineTermuxArchName() {
+    public static byte[] loadZipBytes() {
-        // Note that we cannot use System.getProperty("os.arch") since that may give e.g. "aarch64"
+        // Only load the shared library when necessary to save memory usage.
-        // while a 64-bit runtime may not be installed (like on the Samsung Galaxy S5 Neo).
+        System.loadLibrary("termux-bootstrap");
-        // Instead we search through the supported abi:s on the device, see:
+        return getZip();
        // http://developer.android.com/ndk/guides/abis.html
        // Note that we search for abi:s in preferred order (the ordering of the
        // Build.SUPPORTED_ABIS list) to avoid e.g. installing arm on an x86 system where arm
        // emulation is available.
        for (String androidArch : Build.SUPPORTED_ABIS) {
            switch (androidArch) {
                case "arm64-v8a": return "aarch64";
                case "armeabi-v7a": return "arm";
                case "x86_64": return "x86_64";
                case "x86": return "i686";
            }
        }
        throw new RuntimeException("Unable to determine arch from Build.SUPPORTED_ABIS =  " +
            Arrays.toString(Build.SUPPORTED_ABIS));
    }
-    /** Delete a folder and all its content or throw. */
+    public static native byte[] getZip();
-    static void deleteFolder(File fileOrDirectory) {
+
-        File[] children = fileOrDirectory.listFiles();
+    /** Delete a folder and all its content or throw. Don't follow symlinks. */
-        if (children != null) {
+    static void deleteFolder(File fileOrDirectory) throws IOException {
-            for (File child : children) {
+        if (fileOrDirectory.getCanonicalPath().equals(fileOrDirectory.getAbsolutePath()) && fileOrDirectory.isDirectory()) {
-                deleteFolder(child);
+            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());
        }
    }
-    public static void setupStorageSymlinks(final Context context) {
+    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");
-                    if (storageDir.exists() && !storageDir.delete()) {
+                    if (storageDir.exists()) {
-                        Log.e(LOG_TAG, "Could not delete old $HOME/storage");
+                        try {
-                        return;
+                            deleteFolder(storageDir);
                        } catch (IOException e) {
                            Log.e(LOG_TAG, "Could not delete old $HOME/storage, " + e.getMessage());
                            return;
                        }
                    }
                    if (!storageDir.mkdirs()) {
--- a/app/src/main/java/com/termux/app/TermuxOpenReceiver.java
+++ b/app/src/main/java/com/termux/app/TermuxOpenReceiver.java
@@ -0,0 +1,191 @@
 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.util.Log;
 import android.webkit.MimeTypeMap;
 import com.termux.terminal.EmulatorDebug;
 import java.io.File;
 import java.io.FileNotFoundException;
 import java.io.IOException;
 import androidx.annotation.NonNull;
 public class TermuxOpenReceiver extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
        final Uri data = intent.getData();
        if (data == null) {
            Log.e(EmulatorDebug.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:
                Log.e(EmulatorDebug.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) {
                Log.e(EmulatorDebug.LOG_TAG, "termux-open: No app handles the url " + data);
            }
            return;
        }
        final File fileToShare = new File(filePath);
        if (!(fileToShare.isFile() && fileToShare.canRead())) {
            Log.e(EmulatorDebug.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://com.termux.files" + 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) {
            Log.e(EmulatorDebug.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(TermuxService.FILES_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
@@ -2,29 +2,55 @@ package com.termux.app;
 import android.content.Context;
 import android.content.SharedPreferences;
 import android.content.res.Configuration;
 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 org.json.JSONArray;
 import org.json.JSONException;
 import org.json.JSONObject;
 import java.io.File;
 import java.io.FileInputStream;
 import java.io.IOException;
 import java.io.InputStreamReader;
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
 import java.nio.charset.StandardCharsets;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.Iterator;
 import java.util.List;
 import java.util.Map;
 import java.util.Properties;
 import androidx.annotation.IntDef;
 final class TermuxPreferences {
    @IntDef({BELL_VIBRATE, BELL_BEEP, BELL_IGNORE})
    @Retention(RetentionPolicy.SOURCE)
-    public @interface AsciiBellBehaviour {
+    @interface AsciiBellBehaviour {
    }
    final static class KeyboardShortcut {
        KeyboardShortcut(int codePoint, int shortcutAction) {
            this.codePoint = codePoint;
            this.shortcutAction = shortcutAction;
        }
        final int codePoint;
        final int shortcutAction;
    }
    static final int SHORTCUT_ACTION_CREATE_SESSION = 1;
    static final int SHORTCUT_ACTION_NEXT_SESSION = 2;
    static final int SHORTCUT_ACTION_PREVIOUS_SESSION = 3;
    static final int SHORTCUT_ACTION_RENAME_SESSION = 4;
    static final int BELL_VIBRATE = 1;
    static final int BELL_BEEP = 2;
    static final int BELL_IGNORE = 3;
@@ -32,21 +58,33 @@ final class TermuxPreferences {
    private final int MIN_FONTSIZE;
    private static final int MAX_FONTSIZE = 256;
    private static final String FULLSCREEN_KEY = "fullscreen";
    private static final String SHOW_EXTRA_KEYS_KEY = "show_extra_keys";
    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 static final String SCREEN_ALWAYS_ON_KEY = "screen_always_on";
-    private boolean mFullScreen;
+    private boolean mUseDarkUI;
    private boolean mScreenAlwaysOn;
    private int mFontSize;
    @AsciiBellBehaviour
    int mBellBehaviour = BELL_VIBRATE;
    boolean mBackIsEscape;
    boolean mDisableVolumeVirtualKeys;
    boolean mShowExtraKeys;
    ExtraKeysInfos mExtraKeys;
    final List<KeyboardShortcut> shortcuts = new ArrayList<>();
    /**
     * If value is not in the range [min, max], set it to either min or max.
     */
    static int clamp(int value, int min, int max) {
        return Math.min(Math.max(value, min), max);
    }
    TermuxPreferences(Context context) {
        reloadFromProperties(context);
        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
@@ -57,8 +95,8 @@ final class TermuxPreferences {
        // to prevent invisible text due to zoom be mistake:
        MIN_FONTSIZE = (int) (4f * dipInPixels);
-        mFullScreen = prefs.getBoolean(FULLSCREEN_KEY, false);
+        mShowExtraKeys = prefs.getBoolean(SHOW_EXTRA_KEYS_KEY, true);
-        mShowExtraKeys = prefs.getBoolean(SHOW_EXTRA_KEYS_KEY, false);
+        mScreenAlwaysOn = prefs.getBoolean(SCREEN_ALWAYS_ON_KEY, false);
        // http://www.google.com/design/spec/style/typography.html#typography-line-height
        int defaultFontSize = Math.round(12 * dipInPixels);
@@ -70,20 +108,7 @@ final class TermuxPreferences {
        } catch (NumberFormatException | ClassCastException e) {
            mFontSize = defaultFontSize;
        }
-        mFontSize = Math.max(MIN_FONTSIZE, Math.min(mFontSize, MAX_FONTSIZE));
+        mFontSize = clamp(mFontSize, MIN_FONTSIZE, MAX_FONTSIZE); 
    }
    boolean isFullScreen() {
        return mFullScreen;
    }
    void setFullScreen(Context context, boolean newValue) {
        mFullScreen = newValue;
        PreferenceManager.getDefaultSharedPreferences(context).edit().putBoolean(FULLSCREEN_KEY, newValue).apply();
    }
    boolean isShowExtraKeys() {
        return mShowExtraKeys;
    }
    boolean toggleShowExtraKeys(Context context) {
@@ -104,6 +129,19 @@ final class TermuxPreferences {
        prefs.edit().putString(FONTSIZE_KEY, Integer.toString(mFontSize)).apply();
    }
    boolean isScreenAlwaysOn() {
        return mScreenAlwaysOn;
    }
    boolean isUsingBlackUI() {
        return mUseDarkUI;
    }
    void setScreenAlwaysOn(Context context, boolean newValue) {
        mScreenAlwaysOn = newValue;
        PreferenceManager.getDefaultSharedPreferences(context).edit().putBoolean(SCREEN_ALWAYS_ON_KEY, newValue).apply();
    }
    static void storeCurrentSession(Context context, TerminalSession session) {
        PreferenceManager.getDefaultSharedPreferences(context).edit().putString(TermuxPreferences.CURRENT_SESSION_KEY, session.mHandle).apply();
    }
@@ -117,69 +155,75 @@ final class TermuxPreferences {
        return null;
    }
-    public static boolean isShowWelcomeDialog(Context context) {
+    void reloadFromProperties(Context context) {
-        return PreferenceManager.getDefaultSharedPreferences(context).getBoolean(SHOW_WELCOME_DIALOG_KEY, true);
+        File propsFile = new File(TermuxService.HOME_PATH + "/.termux/termux.properties");
-    }
+        if (!propsFile.exists())
            propsFile = new File(TermuxService.HOME_PATH + "/.config/termux/termux.properties");
-    public static void disableWelcomeDialog(Context context) {
+        Properties props = new Properties();
        PreferenceManager.getDefaultSharedPreferences(context).edit().putBoolean(SHOW_WELCOME_DIALOG_KEY, false).apply();
    }
    public void reloadFromProperties(Context context) {
        try {
            File propsFile = new File(TermuxService.HOME_PATH + "/.termux/termux.properties");
            if (!propsFile.exists())
                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);
+                    props.load(new InputStreamReader(in, StandardCharsets.UTF_8));
                }
            }
            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", "back"));
            shortcuts.clear();
            parseAction("shortcut.create-session", SHORTCUT_ACTION_CREATE_SESSION, props);
            parseAction("shortcut.next-session", SHORTCUT_ACTION_NEXT_SESSION, props);
            parseAction("shortcut.previous-session", SHORTCUT_ACTION_PREVIOUS_SESSION, props);
            parseAction("shortcut.rename-session", SHORTCUT_ACTION_RENAME_SESSION, props);
        } catch (Exception e) {
-            Toast.makeText(context, "Error loading properties: " + e.getMessage(), Toast.LENGTH_LONG).show();
+            Toast.makeText(context, "Could not open properties file termux.properties: " + e.getMessage(), Toast.LENGTH_LONG).show();
            Log.e("termux", "Error loading props", e);
        }
    }
-    public static final int SHORTCUT_ACTION_CREATE_SESSION = 1;
+        switch (props.getProperty("bell-character", "vibrate")) {
-    public static final int SHORTCUT_ACTION_NEXT_SESSION = 2;
+            case "beep":
-    public static final int SHORTCUT_ACTION_PREVIOUS_SESSION = 3;
+                mBellBehaviour = BELL_BEEP;
-    public static final int SHORTCUT_ACTION_RENAME_SESSION = 4;
+                break;
-
+            case "ignore":
-    public final static class KeyboardShortcut {
+                mBellBehaviour = BELL_IGNORE;
-
+                break;
-        public KeyboardShortcut(int codePoint, int shortcutAction) {
+            default: // "vibrate".
-            this.codePoint = codePoint;
+                mBellBehaviour = BELL_VIBRATE;
-            this.shortcutAction = shortcutAction;
+                break;
        }
-        final int codePoint;
+        switch (props.getProperty("use-black-ui", "").toLowerCase()) {
-        final int shortcutAction;
+            case "true":
-    }
+                mUseDarkUI = true;
                break;
            case "false":
                mUseDarkUI = false;
                break;
            default:
                int nightMode = context.getResources().getConfiguration().uiMode & Configuration.UI_MODE_NIGHT_MASK;
                mUseDarkUI = nightMode == Configuration.UI_MODE_NIGHT_YES;
        }
-    final List<KeyboardShortcut> shortcuts = new ArrayList<>();
+        String defaultExtraKeys = "[[ESC, TAB, CTRL, ALT, {key: '-', popup: '|'}, DOWN, UP]]";
        try {
            String extrakeyProp = props.getProperty("extra-keys", defaultExtraKeys);
            String extraKeysStyle = props.getProperty("extra-keys-style", "default");
            mExtraKeys = new ExtraKeysInfos(extrakeyProp, extraKeysStyle);
        } catch (JSONException e) {
            Toast.makeText(context, "Could not load the extra-keys property from the config: " + e.toString(), Toast.LENGTH_LONG).show();
            Log.e("termux", "Error loading props", e);
            try {
                mExtraKeys = new ExtraKeysInfos(defaultExtraKeys, "default");
            } catch (JSONException e2) {
                e2.printStackTrace();
                Toast.makeText(context, "Can't create default extra keys", Toast.LENGTH_LONG).show();
                mExtraKeys = null;
            }
        }
        mBackIsEscape = "escape".equals(props.getProperty("back-key", "back"));
        mDisableVolumeVirtualKeys = "volume".equals(props.getProperty("volume-keys", "virtual"));
        shortcuts.clear();
        parseAction("shortcut.create-session", SHORTCUT_ACTION_CREATE_SESSION, props);
        parseAction("shortcut.next-session", SHORTCUT_ACTION_NEXT_SESSION, props);
        parseAction("shortcut.previous-session", SHORTCUT_ACTION_PREVIOUS_SESSION, props);
        parseAction("shortcut.rename-session", SHORTCUT_ACTION_RENAME_SESSION, props);
    }
    private void parseAction(String name, int shortcutAction, Properties props) {
        String value = props.getProperty(name);
--- a/app/src/main/java/com/termux/app/TermuxService.java
+++ b/app/src/main/java/com/termux/app/TermuxService.java
@@ -2,18 +2,22 @@ package com.termux.app;
 import android.annotation.SuppressLint;
 import android.app.Notification;
 import android.app.NotificationChannel;
 import android.app.NotificationManager;
 import android.app.PendingIntent;
 import android.app.Service;
 import android.content.ActivityNotFoundException;
 import android.content.Context;
 import android.content.Intent;
 import android.content.res.Resources;
 import android.net.Uri;
 import android.net.wifi.WifiManager;
 import android.os.Binder;
 import android.os.Build;
 import android.os.Handler;
 import android.os.IBinder;
 import android.os.PowerManager;
 import android.provider.Settings;
 import android.util.Log;
 import android.widget.ArrayAdapter;
@@ -23,7 +27,6 @@ import com.termux.terminal.TerminalSession;
 import com.termux.terminal.TerminalSession.SessionChangedCallback;
 import java.io.File;
 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.List;
@@ -41,6 +44,8 @@ import java.util.List;
 */
 public final class TermuxService extends Service implements SessionChangedCallback {
    private static final String NOTIFICATION_CHANNEL_ID = "termux_notification_channel";
    /** Note that this is a symlink on the Android M preview. */
    @SuppressLint("SdCardPath")
    public static final String FILES_PATH = "/data/data/com.termux/files";
@@ -58,7 +63,7 @@ public final class TermuxService extends Service implements SessionChangedCallba
    public static final String EXTRA_ARGUMENTS = "com.termux.execute.arguments";
    public static final String EXTRA_CURRENT_WORKING_DIRECTORY = "com.termux.execute.cwd";
-    private static final String EXTRA_EXECUTE_IN_BACKGROUND = "com.termux.execute.background";
+    public static final String EXTRA_EXECUTE_IN_BACKGROUND = "com.termux.execute.background";
    /** This service is only bound from inside the same process and never uses IPC. */
    class LocalBinder extends Binder {
@@ -101,13 +106,28 @@ public final class TermuxService extends Service implements SessionChangedCallba
        } else if (ACTION_LOCK_WAKE.equals(action)) {
            if (mWakeLock == null) {
                PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
-                mWakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, EmulatorDebug.LOG_TAG);
+                mWakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, EmulatorDebug.LOG_TAG + ":service-wakelock");
                mWakeLock.acquire();
-                WifiManager wm = (WifiManager) getSystemService(Context.WIFI_SERVICE);
+                // http://tools.android.com/tech-docs/lint-in-studio-2-3#TOC-WifiManager-Leak
                WifiManager wm = (WifiManager) getApplicationContext().getSystemService(Context.WIFI_SERVICE);
                mWifiLock = wm.createWifiLock(WifiManager.WIFI_MODE_FULL_HIGH_PERF, EmulatorDebug.LOG_TAG);
                mWifiLock.acquire();
                String packageName = getPackageName();
                if (!pm.isIgnoringBatteryOptimizations(packageName)) {
                    Intent whitelist = new Intent();
                    whitelist.setAction(Settings.ACTION_REQUEST_IGNORE_BATTERY_OPTIMIZATIONS);
                    whitelist.setData(Uri.parse("package:" + packageName));
                    whitelist.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                    try {
                        startActivity(whitelist);
                    } catch (ActivityNotFoundException e) {
                        Log.e(EmulatorDebug.LOG_TAG, "Failed to call ACTION_REQUEST_IGNORE_BATTERY_OPTIMIZATIONS", e);
                    }
                }
                updateNotification();
            }
        } else if (ACTION_UNLOCK_WAKE.equals(action)) {
@@ -128,11 +148,12 @@ public final class TermuxService extends Service implements SessionChangedCallba
            String cwd = intent.getStringExtra(EXTRA_CURRENT_WORKING_DIRECTORY);
            if (intent.getBooleanExtra(EXTRA_EXECUTE_IN_BACKGROUND, false)) {
-                BackgroundJob task = new BackgroundJob(cwd, executablePath, arguments, this);
+                BackgroundJob task = new BackgroundJob(cwd, executablePath, arguments, this, intent.getParcelableExtra("pendingIntent"));
                mBackgroundTasks.add(task);
                updateNotification();
            } else {
-                TerminalSession newSession = createTermSession(executablePath, arguments, cwd, false);
+                boolean failsafe = intent.getBooleanExtra(TermuxActivity.TERMUX_FAILSAFE_SESSION_ACTION, false);
                TerminalSession newSession = createTermSession(executablePath, arguments, cwd, failsafe);
                // Transform executable path to session name, e.g. "/bin/do-something.sh" => "do something.sh".
                if (executablePath != null) {
@@ -164,11 +185,12 @@ public final class TermuxService extends Service implements SessionChangedCallba
    @Override
    public void onCreate() {
        setupNotificationChannel();
        startForeground(NOTIFICATION_ID, buildNotification());
    }
    /** Update the shown foreground service notification after making any changes that affect it. */
-    private void updateNotification() {
+    void updateNotification() {
        if (mWakeLock == null && mTerminalSessions.isEmpty() && mBackgroundTasks.isEmpty()) {
            // Exit if we are updating after the user disabled all locks with no sessions or tasks running.
            stopSelf();
@@ -202,14 +224,18 @@ public final class TermuxService extends Service implements SessionChangedCallba
        builder.setOngoing(true);
        // If holding a wake or wifi lock consider the notification of high priority since it's using power,
-        // otherwise use a minimal priority since this is just a background service notification:
+        // otherwise use a low priority
-        builder.setPriority((wakeLockHeld) ? Notification.PRIORITY_HIGH : Notification.PRIORITY_MIN);
+        builder.setPriority((wakeLockHeld) ? Notification.PRIORITY_HIGH : Notification.PRIORITY_LOW);
        // No need to show a timestamp:
        builder.setShowWhen(false);
        // Background color for small notification icon:
-        builder.setColor(0xFF000000);
+        builder.setColor(0xFF607D8B);
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            builder.setChannelId(NOTIFICATION_CHANNEL_ID);
        }
        Resources res = getResources();
        Intent exitIntent = new Intent(this, TermuxService.class).setAction(ACTION_STOP_SERVICE);
@@ -228,6 +254,18 @@ public final class TermuxService extends Service implements SessionChangedCallba
    @Override
    public void onDestroy() {
        File termuxTmpDir = new File(TermuxService.PREFIX_PATH + "/tmp");
        if (termuxTmpDir.exists()) {
            try {
                TermuxInstaller.deleteFolder(termuxTmpDir.getCanonicalFile());
            } catch (Exception e) {
                Log.e(EmulatorDebug.LOG_TAG, "Error while removing file at " + termuxTmpDir.getAbsolutePath(), e);
            }
            termuxTmpDir.mkdirs();
        }
        if (mWakeLock != null) mWakeLock.release();
        if (mWifiLock != null) mWifiLock.release();
@@ -235,7 +273,6 @@ public final class TermuxService extends Service implements SessionChangedCallba
        for (int i = 0; i < mTerminalSessions.size(); i++)
            mTerminalSessions.get(i).finishIfRunning();
        mTerminalSessions.clear();
    }
    public List<TerminalSession> getSessions() {
@@ -251,23 +288,8 @@ public final class TermuxService extends Service implements SessionChangedCallba
        boolean isLoginShell = false;
        if (executablePath == null) {
-            File shell = new File(HOME_PATH, ".termux/shell");
+            if (!failSafe) {
-            if (shell.exists()) {
+                for (String shellBinary : new String[]{"login", "bash", "zsh"}) {
                try {
                    File canonicalFile = shell.getCanonicalFile();
                    if (canonicalFile.isFile() && canonicalFile.canExecute()) {
                        executablePath = canonicalFile.getName().equals("busybox") ? (PREFIX_PATH + "/bin/ash") : canonicalFile.getAbsolutePath();
                    } else {
                        Log.w(EmulatorDebug.LOG_TAG, "$HOME/.termux/shell points to non-executable shell: " + canonicalFile.getAbsolutePath());
                    }
                } catch (IOException e) {
                    Log.e(EmulatorDebug.LOG_TAG, "Error checking $HOME/.termux/shell", e);
                }
            }
            if (executablePath == null) {
                // Try bash, zsh and ash in that order:
                for (String shellBinary : new String[]{"bash", "zsh", "ash"}) {
                    File shellFile = new File(PREFIX_PATH + "/bin/" + shellBinary);
                    if (shellFile.canExecute()) {
                        executablePath = shellFile.getAbsolutePath();
@@ -296,6 +318,12 @@ public final class TermuxService extends Service implements SessionChangedCallba
        TerminalSession session = new TerminalSession(executablePath, cwd, args, env, this);
        mTerminalSessions.add(session);
        updateNotification();
        // Make sure that terminal styling is always applied.
        Intent stylingIntent = new Intent("com.termux.app.reload_style");
        stylingIntent.putExtra("com.termux.app.reload_style", "styling");
        sendBroadcast(stylingIntent);
        return session;
    }
@@ -344,12 +372,22 @@ public final class TermuxService extends Service implements SessionChangedCallba
    }
    public void onBackgroundJobExited(final BackgroundJob task) {
-        mHandler.post(new Runnable() {
+        mHandler.post(() -> {
-            @Override
+            mBackgroundTasks.remove(task);
-            public void run() {
+            updateNotification();
                mBackgroundTasks.remove(task);
                updateNotification();
            }
        });
    }
    private void setupNotificationChannel() {
        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) return;
        String channelName = "Termux";
        String channelDescription = "Notifications from Termux";
        int importance = NotificationManager.IMPORTANCE_LOW;
        NotificationChannel channel = new NotificationChannel(NOTIFICATION_CHANNEL_ID, channelName,importance);
        channel.setDescription(channelDescription);
        NotificationManager manager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
        manager.createNotificationChannel(channel);
    }
 }
--- a/app/src/main/java/com/termux/app/TermuxKeyListener.java
+++ b/app/src/main/java/com/termux/app/TermuxKeyListener.java
@@ -2,7 +2,6 @@ package com.termux.app;
 import android.content.Context;
 import android.media.AudioManager;
 import android.support.v4.widget.DrawerLayout;
 import android.view.Gravity;
 import android.view.InputDevice;
 import android.view.KeyEvent;
@@ -12,18 +11,20 @@ import android.view.inputmethod.InputMethodManager;
 import com.termux.terminal.KeyHandler;
 import com.termux.terminal.TerminalEmulator;
 import com.termux.terminal.TerminalSession;
-import com.termux.view.TerminalKeyListener;
+import com.termux.view.TerminalViewClient;
 import java.util.List;
-public final class TermuxKeyListener implements TerminalKeyListener {
+import androidx.drawerlayout.widget.DrawerLayout;
 public final class TermuxViewClient implements TerminalViewClient {
    final TermuxActivity mActivity;
    /** Keeping track of the special keys acting as Ctrl and Fn for the soft keyboard and other hardware keys. */
    boolean mVirtualControlKeyDown, mVirtualFnKeyDown;
-    public TermuxKeyListener(TermuxActivity activity) {
+    public TermuxViewClient(TermuxActivity activity) {
        this.mActivity = activity;
    }
@@ -73,8 +74,6 @@ public final class TermuxKeyListener implements TerminalKeyListener {
                mActivity.getDrawer().openDrawer(Gravity.LEFT);
            } else if (keyCode == KeyEvent.KEYCODE_DPAD_LEFT) {
                mActivity.getDrawer().closeDrawers();
            } else if (unicodeChar == 'f'/* full screen */) {
                mActivity.toggleImmersive();
            } else if (unicodeChar == 'k'/* keyboard */) {
                InputMethodManager imm = (InputMethodManager) mActivity.getSystemService(Context.INPUT_METHOD_SERVICE);
                imm.toggleSoftInput(InputMethodManager.SHOW_FORCED, 0);
@@ -114,12 +113,12 @@ public final class TermuxKeyListener implements TerminalKeyListener {
    @Override
    public boolean readControlKey() {
-        return (mActivity.mExtraKeysView != null && mActivity.mExtraKeysView.readControlButton()) || mVirtualControlKeyDown;
+        return (mActivity.mExtraKeysView != null && mActivity.mExtraKeysView.readSpecialButton(ExtraKeysView.SpecialButton.CTRL)) || mVirtualControlKeyDown;
    }
    @Override
    public boolean readAltKey() {
-        return (mActivity.mExtraKeysView != null && mActivity.mExtraKeysView.readAltButton());
+        return (mActivity.mExtraKeysView != null && mActivity.mExtraKeysView.readSpecialButton(ExtraKeysView.SpecialButton.ALT));
    }
    @Override
@@ -211,6 +210,7 @@ public final class TermuxKeyListener implements TerminalKeyListener {
                // Writing mode:
                case 'q':
                case 'k':
                    mActivity.toggleShowExtraKeys();
                    break;
            }
@@ -256,10 +256,17 @@ public final class TermuxKeyListener implements TerminalKeyListener {
        return false;
    }
    @Override
    public boolean onLongPress(MotionEvent event) {
        return false;
    }
    /** 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) {
+        if (mActivity.mSettings.mDisableVolumeVirtualKeys) {
            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) {
--- a/app/src/main/java/com/termux/filepicker/TermuxDocumentsProvider.java
+++ b/app/src/main/java/com/termux/filepicker/TermuxDocumentsProvider.java
@@ -71,11 +71,11 @@ public class TermuxDocumentsProvider extends DocumentsProvider {
        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);
+        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);
+        row.add(Root.COLUMN_ICON, R.drawable.ic_launcher);
        return result;
    }
@@ -91,9 +91,7 @@ public class TermuxDocumentsProvider extends DocumentsProvider {
        final MatrixCursor result = new MatrixCursor(projection != null ? projection : DEFAULT_DOCUMENT_PROJECTION);
        final File parent = getFileForDocId(parentDocumentId);
        for (File file : parent.listFiles()) {
-            if (!file.getName().startsWith(".")) {
+            includeFile(result, null, file);
                includeFile(result, null, file);
            }
        }
        return result;
    }
@@ -117,6 +115,29 @@ public class TermuxDocumentsProvider extends DocumentsProvider {
        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);
@@ -154,8 +175,7 @@ public class TermuxDocumentsProvider extends DocumentsProvider {
            } catch (IOException e) {
                isInsideHome = true;
            }
-            final boolean isHidden = file.getName().startsWith(".");
+            if (isInsideHome) {
            if (isInsideHome && !isHidden) {
                if (file.isDirectory()) {
                    Collections.addAll(pending, file.listFiles());
                } else {
@@ -169,6 +189,11 @@ public class TermuxDocumentsProvider extends DocumentsProvider {
        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.
@@ -195,7 +220,7 @@ public class TermuxDocumentsProvider extends DocumentsProvider {
            final String name = file.getName();
            final int lastDot = name.lastIndexOf('.');
            if (lastDot >= 0) {
-                final String extension = name.substring(lastDot + 1);
+                final String extension = name.substring(lastDot + 1).toLowerCase();
                final String mime = MimeTypeMap.getSingleton().getMimeTypeFromExtension(extension);
                if (mime != null) return mime;
            }
@@ -220,10 +245,11 @@ public class TermuxDocumentsProvider extends DocumentsProvider {
        int flags = 0;
        if (file.isDirectory()) {
-            if (file.isDirectory() && file.canWrite()) flags |= Document.FLAG_DIR_SUPPORTS_CREATE;
+            if (file.canWrite()) flags |= Document.FLAG_DIR_SUPPORTS_CREATE;
        } else if (file.canWrite()) {
-            flags |= Document.FLAG_SUPPORTS_WRITE | Document.FLAG_SUPPORTS_DELETE;
+            flags |= Document.FLAG_SUPPORTS_WRITE;
        }
        if (file.getParentFile().canWrite()) flags |= Document.FLAG_SUPPORTS_DELETE;
        final String displayName = file.getName();
        final String mimeType = getMimeType(file);
@@ -236,7 +262,7 @@ public class TermuxDocumentsProvider extends DocumentsProvider {
        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);
+        row.add(Document.COLUMN_ICON, R.drawable.ic_launcher);
    }
 }
--- a/app/src/main/java/com/termux/filepicker/TermuxFileReceiverActivity.java
+++ b/app/src/main/java/com/termux/filepicker/TermuxFileReceiverActivity.java
@@ -2,7 +2,6 @@ package com.termux.filepicker;
 import android.app.Activity;
 import android.app.AlertDialog;
 import android.content.DialogInterface;
 import android.content.Intent;
 import android.database.Cursor;
 import android.net.Uri;
@@ -22,6 +21,7 @@ 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 {
@@ -37,6 +37,11 @@ public class TermuxFileReceiverActivity extends Activity {
     */
    boolean mFinishOnDismissNameDialog = true;
    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();
@@ -51,7 +56,7 @@ public class TermuxFileReceiverActivity extends Activity {
            final Uri sharedUri = intent.getParcelableExtra(Intent.EXTRA_STREAM);
            if (sharedText != null) {
-                if (Patterns.WEB_URL.matcher(sharedText).matches()) {
+                if (isSharedTextAnUrl(sharedText)) {
                    handleUrlAndFinish(sharedText);
                } else {
                    String subject = intent.getStringExtra(Intent.EXTRA_SUBJECT);
@@ -83,17 +88,7 @@ public class TermuxFileReceiverActivity extends Activity {
    void showErrorDialogAndQuit(String message) {
        mFinishOnDismissNameDialog = false;
-        new AlertDialog.Builder(this).setMessage(message).setOnDismissListener(new DialogInterface.OnDismissListener() {
+        new AlertDialog.Builder(this).setMessage(message).setOnDismissListener(dialog -> finish()).setPositiveButton(android.R.string.ok, (dialog, which) -> finish()).show();
            @Override
            public void onDismiss(DialogInterface dialog) {
                finish();
            }
        }).setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                finish();
            }
        }).show();
    }
    void handleContentUri(final Uri uri, String subjectFromIntent) {
@@ -119,54 +114,40 @@ public class TermuxFileReceiverActivity extends Activity {
    }
    void promptNameAndSave(final InputStream in, final String attachmentFileName) {
-        DialogUtils.textInput(this, R.string.file_received_title, attachmentFileName, R.string.file_received_edit_button, new DialogUtils.TextSetListener() {
+        DialogUtils.textInput(this, R.string.file_received_title, attachmentFileName, R.string.file_received_edit_button, text -> {
-                @Override
+            File outFile = saveStreamWithName(in, text);
-                public void onTextSet(String text) {
+            if (outFile == null) return;
                    File outFile = saveStreamWithName(in, text);
                    if (outFile == null) return;
-                    final File editorProgramFile = new File(EDITOR_PROGRAM);
+            final File editorProgramFile = new File(EDITOR_PROGRAM);
-                    if (!editorProgramFile.isFile()) {
+            if (!editorProgramFile.isFile()) {
-                        showErrorDialogAndQuit("The following file does not exist:\n$HOME/bin/termux-file-editor\n\n"
+                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.");
+                    + "Create this file as a script or a symlink - it will be called with the received file as only argument.");
-                        return;
+                return;
-                    }
+            }
-                    // Do this for the user if necessary:
+            // Do this for the user if necessary:
-                    //noinspection ResultOfMethodCallIgnored
+            //noinspection ResultOfMethodCallIgnored
-                    editorProgramFile.setExecutable(true);
+            editorProgramFile.setExecutable(true);
-                    final Uri scriptUri = new Uri.Builder().scheme("file").path(EDITOR_PROGRAM).build();
+            final Uri scriptUri = new Uri.Builder().scheme("file").path(EDITOR_PROGRAM).build();
-                    Intent executeIntent = new Intent(TermuxService.ACTION_EXECUTE, scriptUri);
+            Intent executeIntent = new Intent(TermuxService.ACTION_EXECUTE, scriptUri);
-                    executeIntent.setClass(TermuxFileReceiverActivity.this, TermuxService.class);
+            executeIntent.setClass(TermuxFileReceiverActivity.this, TermuxService.class);
-                    executeIntent.putExtra(TermuxService.EXTRA_ARGUMENTS, new String[]{outFile.getAbsolutePath()});
+            executeIntent.putExtra(TermuxService.EXTRA_ARGUMENTS, new String[]{outFile.getAbsolutePath()});
-                    startService(executeIntent);
+            startService(executeIntent);
-                    finish();
+            finish();
-                }
+        },
            R.string.file_received_open_folder_button, text -> {
                if (saveStreamWithName(in, text) == null) return;
                Intent executeIntent = new Intent(TermuxService.ACTION_EXECUTE);
                executeIntent.putExtra(TermuxService.EXTRA_CURRENT_WORKING_DIRECTORY, TERMUX_RECEIVEDIR);
                executeIntent.setClass(TermuxFileReceiverActivity.this, TermuxService.class);
                startService(executeIntent);
                finish();
            },
-            R.string.file_received_open_folder_button, new DialogUtils.TextSetListener() {
+            android.R.string.cancel, text -> finish(), dialog -> {
-                @Override
+                if (mFinishOnDismissNameDialog) finish();
                public void onTextSet(String text) {
                    if (saveStreamWithName(in, text) == null) return;
                    Intent executeIntent = new Intent(TermuxService.ACTION_EXECUTE);
                    executeIntent.putExtra(TermuxService.EXTRA_CURRENT_WORKING_DIRECTORY, TERMUX_RECEIVEDIR);
                    executeIntent.setClass(TermuxFileReceiverActivity.this, TermuxService.class);
                    startService(executeIntent);
                    finish();
                }
            },
            android.R.string.cancel, new DialogUtils.TextSetListener() {
                @Override
                public void onTextSet(final String text) {
                    finish();
                }
            }, new DialogInterface.OnDismissListener() {
                @Override
                public void onDismiss(DialogInterface dialog) {
                    if (mFinishOnDismissNameDialog) finish();
                }
            });
    }
--- a/app/src/main/java/com/termux/terminal/WcWidth.java
+++ b/app/src/main/java/com/termux/terminal/WcWidth.java
@@ -1,458 +0,0 @@
 package com.termux.terminal;
 /**
 * Implementation of wcwidth(3) for Unicode 9.
 *
 * Implementation from https://github.com/jquast/wcwidth but we return 0 for unprintable characters.
 */
 public final class WcWidth {
    // From https://github.com/jquast/wcwidth/blob/master/wcwidth/table_zero.py
    // t commit 0d7de112202cc8b2ebe9232ff4a5c954f19d561a (2016-07-02):
    private static final int[][] ZERO_WIDTH = {
        {0x0300, 0x036f},  // Combining Grave Accent  ..Combining Latin Small Le
        {0x0483, 0x0489},  // Combining Cyrillic Titlo..Combining Cyrillic Milli
        {0x0591, 0x05bd},  // Hebrew Accent Etnahta   ..Hebrew Point Meteg
        {0x05bf, 0x05bf},  // Hebrew Point Rafe       ..Hebrew Point Rafe
        {0x05c1, 0x05c2},  // Hebrew Point Shin Dot   ..Hebrew Point Sin Dot
        {0x05c4, 0x05c5},  // Hebrew Mark Upper Dot   ..Hebrew Mark Lower Dot
        {0x05c7, 0x05c7},  // Hebrew Point Qamats Qata..Hebrew Point Qamats Qata
        {0x0610, 0x061a},  // Arabic Sign Sallallahou ..Arabic Small Kasra
        {0x064b, 0x065f},  // Arabic Fathatan         ..Arabic Wavy Hamza Below
        {0x0670, 0x0670},  // Arabic Letter Superscrip..Arabic Letter Superscrip
        {0x06d6, 0x06dc},  // Arabic Small High Ligatu..Arabic Small High Seen
        {0x06df, 0x06e4},  // Arabic Small High Rounde..Arabic Small High Madda
        {0x06e7, 0x06e8},  // Arabic Small High Yeh   ..Arabic Small High Noon
        {0x06ea, 0x06ed},  // Arabic Empty Centre Low ..Arabic Small Low Meem
        {0x0711, 0x0711},  // Syriac Letter Superscrip..Syriac Letter Superscrip
        {0x0730, 0x074a},  // Syriac Pthaha Above     ..Syriac Barrekh
        {0x07a6, 0x07b0},  // Thaana Abafili          ..Thaana Sukun
        {0x07eb, 0x07f3},  // Nko Combining Sh||t High..Nko Combining Double Dot
        {0x0816, 0x0819},  // Samaritan Mark In       ..Samaritan Mark Dagesh
        {0x081b, 0x0823},  // Samaritan Mark Epentheti..Samaritan Vowel Sign A
        {0x0825, 0x0827},  // Samaritan Vowel Sign Sho..Samaritan Vowel Sign U
        {0x0829, 0x082d},  // Samaritan Vowel Sign Lon..Samaritan Mark Nequdaa
        {0x0859, 0x085b},  // Mandaic Affrication Mark..Mandaic Gemination Mark
        {0x08d4, 0x08e1},  // (nil)                   ..
        {0x08e3, 0x0902},  // Arabic Turned Damma Belo..Devanagari Sign Anusvara
        {0x093a, 0x093a},  // Devanagari Vowel Sign Oe..Devanagari Vowel Sign Oe
        {0x093c, 0x093c},  // Devanagari Sign Nukta   ..Devanagari Sign Nukta
        {0x0941, 0x0948},  // Devanagari Vowel Sign U ..Devanagari Vowel Sign Ai
        {0x094d, 0x094d},  // Devanagari Sign Virama  ..Devanagari Sign Virama
        {0x0951, 0x0957},  // Devanagari Stress Sign U..Devanagari Vowel Sign Uu
        {0x0962, 0x0963},  // Devanagari Vowel Sign Vo..Devanagari Vowel Sign Vo
        {0x0981, 0x0981},  // Bengali Sign Candrabindu..Bengali Sign Candrabindu
        {0x09bc, 0x09bc},  // Bengali Sign Nukta      ..Bengali Sign Nukta
        {0x09c1, 0x09c4},  // Bengali Vowel Sign U    ..Bengali Vowel Sign Vocal
        {0x09cd, 0x09cd},  // Bengali Sign Virama     ..Bengali Sign Virama
        {0x09e2, 0x09e3},  // Bengali Vowel Sign Vocal..Bengali Vowel Sign Vocal
        {0x0a01, 0x0a02},  // Gurmukhi Sign Adak Bindi..Gurmukhi Sign Bindi
        {0x0a3c, 0x0a3c},  // Gurmukhi Sign Nukta     ..Gurmukhi Sign Nukta
        {0x0a41, 0x0a42},  // Gurmukhi Vowel Sign U   ..Gurmukhi Vowel Sign Uu
        {0x0a47, 0x0a48},  // Gurmukhi Vowel Sign Ee  ..Gurmukhi Vowel Sign Ai
        {0x0a4b, 0x0a4d},  // Gurmukhi Vowel Sign Oo  ..Gurmukhi Sign Virama
        {0x0a51, 0x0a51},  // Gurmukhi Sign Udaat     ..Gurmukhi Sign Udaat
        {0x0a70, 0x0a71},  // Gurmukhi Tippi          ..Gurmukhi Addak
        {0x0a75, 0x0a75},  // Gurmukhi Sign Yakash    ..Gurmukhi Sign Yakash
        {0x0a81, 0x0a82},  // Gujarati Sign Candrabind..Gujarati Sign Anusvara
        {0x0abc, 0x0abc},  // Gujarati Sign Nukta     ..Gujarati Sign Nukta
        {0x0ac1, 0x0ac5},  // Gujarati Vowel Sign U   ..Gujarati Vowel Sign Cand
        {0x0ac7, 0x0ac8},  // Gujarati Vowel Sign E   ..Gujarati Vowel Sign Ai
        {0x0acd, 0x0acd},  // Gujarati Sign Virama    ..Gujarati Sign Virama
        {0x0ae2, 0x0ae3},  // Gujarati Vowel Sign Voca..Gujarati Vowel Sign Voca
        {0x0b01, 0x0b01},  // ||iya Sign Candrabindu  ..||iya Sign Candrabindu
        {0x0b3c, 0x0b3c},  // ||iya Sign Nukta        ..||iya Sign Nukta
        {0x0b3f, 0x0b3f},  // ||iya Vowel Sign I      ..||iya Vowel Sign I
        {0x0b41, 0x0b44},  // ||iya Vowel Sign U      ..||iya Vowel Sign Vocalic
        {0x0b4d, 0x0b4d},  // ||iya Sign Virama       ..||iya Sign Virama
        {0x0b56, 0x0b56},  // ||iya Ai Length Mark    ..||iya Ai Length Mark
        {0x0b62, 0x0b63},  // ||iya Vowel Sign Vocalic..||iya Vowel Sign Vocalic
        {0x0b82, 0x0b82},  // Tamil Sign Anusvara     ..Tamil Sign Anusvara
        {0x0bc0, 0x0bc0},  // Tamil Vowel Sign Ii     ..Tamil Vowel Sign Ii
        {0x0bcd, 0x0bcd},  // Tamil Sign Virama       ..Tamil Sign Virama
        {0x0c00, 0x0c00},  // Telugu Sign Combining Ca..Telugu Sign Combining Ca
        {0x0c3e, 0x0c40},  // Telugu Vowel Sign Aa    ..Telugu Vowel Sign Ii
        {0x0c46, 0x0c48},  // Telugu Vowel Sign E     ..Telugu Vowel Sign Ai
        {0x0c4a, 0x0c4d},  // Telugu Vowel Sign O     ..Telugu Sign Virama
        {0x0c55, 0x0c56},  // Telugu Length Mark      ..Telugu Ai Length Mark
        {0x0c62, 0x0c63},  // Telugu Vowel Sign Vocali..Telugu Vowel Sign Vocali
        {0x0c81, 0x0c81},  // Kannada Sign Candrabindu..Kannada Sign Candrabindu
        {0x0cbc, 0x0cbc},  // Kannada Sign Nukta      ..Kannada Sign Nukta
        {0x0cbf, 0x0cbf},  // Kannada Vowel Sign I    ..Kannada Vowel Sign I
        {0x0cc6, 0x0cc6},  // Kannada Vowel Sign E    ..Kannada Vowel Sign E
        {0x0ccc, 0x0ccd},  // Kannada Vowel Sign Au   ..Kannada Sign Virama
        {0x0ce2, 0x0ce3},  // Kannada Vowel Sign Vocal..Kannada Vowel Sign Vocal
        {0x0d01, 0x0d01},  // Malayalam Sign Candrabin..Malayalam Sign Candrabin
        {0x0d41, 0x0d44},  // Malayalam Vowel Sign U  ..Malayalam Vowel Sign Voc
        {0x0d4d, 0x0d4d},  // Malayalam Sign Virama   ..Malayalam Sign Virama
        {0x0d62, 0x0d63},  // Malayalam Vowel Sign Voc..Malayalam Vowel Sign Voc
        {0x0dca, 0x0dca},  // Sinhala Sign Al-lakuna  ..Sinhala Sign Al-lakuna
        {0x0dd2, 0x0dd4},  // Sinhala Vowel Sign Ketti..Sinhala Vowel Sign Ketti
        {0x0dd6, 0x0dd6},  // Sinhala Vowel Sign Diga ..Sinhala Vowel Sign Diga
        {0x0e31, 0x0e31},  // Thai Character Mai Han-a..Thai Character Mai Han-a
        {0x0e34, 0x0e3a},  // Thai Character Sara I   ..Thai Character Phinthu
        {0x0e47, 0x0e4e},  // Thai Character Maitaikhu..Thai Character Yamakkan
        {0x0eb1, 0x0eb1},  // Lao Vowel Sign Mai Kan  ..Lao Vowel Sign Mai Kan
        {0x0eb4, 0x0eb9},  // Lao Vowel Sign I        ..Lao Vowel Sign Uu
        {0x0ebb, 0x0ebc},  // Lao Vowel Sign Mai Kon  ..Lao Semivowel Sign Lo
        {0x0ec8, 0x0ecd},  // Lao Tone Mai Ek         ..Lao Niggahita
        {0x0f18, 0x0f19},  // Tibetan Astrological Sig..Tibetan Astrological Sig
        {0x0f35, 0x0f35},  // Tibetan Mark Ngas Bzung ..Tibetan Mark Ngas Bzung
        {0x0f37, 0x0f37},  // Tibetan Mark Ngas Bzung ..Tibetan Mark Ngas Bzung
        {0x0f39, 0x0f39},  // Tibetan Mark Tsa -phru  ..Tibetan Mark Tsa -phru
        {0x0f71, 0x0f7e},  // Tibetan Vowel Sign Aa   ..Tibetan Sign Rjes Su Nga
        {0x0f80, 0x0f84},  // Tibetan Vowel Sign Rever..Tibetan Mark Halanta
        {0x0f86, 0x0f87},  // Tibetan Sign Lci Rtags  ..Tibetan Sign Yang Rtags
        {0x0f8d, 0x0f97},  // Tibetan Subjoined Sign L..Tibetan Subjoined Letter
        {0x0f99, 0x0fbc},  // Tibetan Subjoined Letter..Tibetan Subjoined Letter
        {0x0fc6, 0x0fc6},  // Tibetan Symbol Padma Gda..Tibetan Symbol Padma Gda
        {0x102d, 0x1030},  // Myanmar Vowel Sign I    ..Myanmar Vowel Sign Uu
        {0x1032, 0x1037},  // Myanmar Vowel Sign Ai   ..Myanmar Sign Dot Below
        {0x1039, 0x103a},  // Myanmar Sign Virama     ..Myanmar Sign Asat
        {0x103d, 0x103e},  // Myanmar Consonant Sign M..Myanmar Consonant Sign M
        {0x1058, 0x1059},  // Myanmar Vowel Sign Vocal..Myanmar Vowel Sign Vocal
        {0x105e, 0x1060},  // Myanmar Consonant Sign M..Myanmar Consonant Sign M
        {0x1071, 0x1074},  // Myanmar Vowel Sign Geba ..Myanmar Vowel Sign Kayah
        {0x1082, 0x1082},  // Myanmar Consonant Sign S..Myanmar Consonant Sign S
        {0x1085, 0x1086},  // Myanmar Vowel Sign Shan ..Myanmar Vowel Sign Shan
        {0x108d, 0x108d},  // Myanmar Sign Shan Counci..Myanmar Sign Shan Counci
        {0x109d, 0x109d},  // Myanmar Vowel Sign Aiton..Myanmar Vowel Sign Aiton
        {0x135d, 0x135f},  // Ethiopic Combining Gemin..Ethiopic Combining Gemin
        {0x1712, 0x1714},  // Tagalog Vowel Sign I    ..Tagalog Sign Virama
        {0x1732, 0x1734},  // Hanunoo Vowel Sign I    ..Hanunoo Sign Pamudpod
        {0x1752, 0x1753},  // Buhid Vowel Sign I      ..Buhid Vowel Sign U
        {0x1772, 0x1773},  // Tagbanwa Vowel Sign I   ..Tagbanwa Vowel Sign U
        {0x17b4, 0x17b5},  // Khmer Vowel Inherent Aq ..Khmer Vowel Inherent Aa
        {0x17b7, 0x17bd},  // Khmer Vowel Sign I      ..Khmer Vowel Sign Ua
        {0x17c6, 0x17c6},  // Khmer Sign Nikahit      ..Khmer Sign Nikahit
        {0x17c9, 0x17d3},  // Khmer Sign Muusikatoan  ..Khmer Sign Bathamasat
        {0x17dd, 0x17dd},  // Khmer Sign Atthacan     ..Khmer Sign Atthacan
        {0x180b, 0x180d},  // Mongolian Free Variation..Mongolian Free Variation
        {0x1885, 0x1886},  // Mongolian Letter Ali Gal..Mongolian Letter Ali Gal
        {0x18a9, 0x18a9},  // Mongolian Letter Ali Gal..Mongolian Letter Ali Gal
        {0x1920, 0x1922},  // Limbu Vowel Sign A      ..Limbu Vowel Sign U
        {0x1927, 0x1928},  // Limbu Vowel Sign E      ..Limbu Vowel Sign O
        {0x1932, 0x1932},  // Limbu Small Letter Anusv..Limbu Small Letter Anusv
        {0x1939, 0x193b},  // Limbu Sign Mukphreng    ..Limbu Sign Sa-i
        {0x1a17, 0x1a18},  // Buginese Vowel Sign I   ..Buginese Vowel Sign U
        {0x1a1b, 0x1a1b},  // Buginese Vowel Sign Ae  ..Buginese Vowel Sign Ae
        {0x1a56, 0x1a56},  // Tai Tham Consonant Sign ..Tai Tham Consonant Sign
        {0x1a58, 0x1a5e},  // Tai Tham Sign Mai Kang L..Tai Tham Consonant Sign
        {0x1a60, 0x1a60},  // Tai Tham Sign Sakot     ..Tai Tham Sign Sakot
        {0x1a62, 0x1a62},  // Tai Tham Vowel Sign Mai ..Tai Tham Vowel Sign Mai
        {0x1a65, 0x1a6c},  // Tai Tham Vowel Sign I   ..Tai Tham Vowel Sign Oa B
        {0x1a73, 0x1a7c},  // Tai Tham Vowel Sign Oa A..Tai Tham Sign Khuen-lue
        {0x1a7f, 0x1a7f},  // Tai Tham Combining Crypt..Tai Tham Combining Crypt
        {0x1ab0, 0x1abe},  // Combining Doubled Circum..Combining Parentheses Ov
        {0x1b00, 0x1b03},  // Balinese Sign Ulu Ricem ..Balinese Sign Surang
        {0x1b34, 0x1b34},  // Balinese Sign Rerekan   ..Balinese Sign Rerekan
        {0x1b36, 0x1b3a},  // Balinese Vowel Sign Ulu ..Balinese Vowel Sign Ra R
        {0x1b3c, 0x1b3c},  // Balinese Vowel Sign La L..Balinese Vowel Sign La L
        {0x1b42, 0x1b42},  // Balinese Vowel Sign Pepe..Balinese Vowel Sign Pepe
        {0x1b6b, 0x1b73},  // Balinese Musical Symbol ..Balinese Musical Symbol
        {0x1b80, 0x1b81},  // Sundanese Sign Panyecek ..Sundanese Sign Panglayar
        {0x1ba2, 0x1ba5},  // Sundanese Consonant Sign..Sundanese Vowel Sign Pan
        {0x1ba8, 0x1ba9},  // Sundanese Vowel Sign Pam..Sundanese Vowel Sign Pan
        {0x1bab, 0x1bad},  // Sundanese Sign Virama   ..Sundanese Consonant Sign
        {0x1be6, 0x1be6},  // Batak Sign Tompi        ..Batak Sign Tompi
        {0x1be8, 0x1be9},  // Batak Vowel Sign Pakpak ..Batak Vowel Sign Ee
        {0x1bed, 0x1bed},  // Batak Vowel Sign Karo O ..Batak Vowel Sign Karo O
        {0x1bef, 0x1bf1},  // Batak Vowel Sign U F|| S..Batak Consonant Sign H
        {0x1c2c, 0x1c33},  // Lepcha Vowel Sign E     ..Lepcha Consonant Sign T
        {0x1c36, 0x1c37},  // Lepcha Sign Ran         ..Lepcha Sign Nukta
        {0x1cd0, 0x1cd2},  // Vedic Tone Karshana     ..Vedic Tone Prenkha
        {0x1cd4, 0x1ce0},  // Vedic Sign Yajurvedic Mi..Vedic Tone Rigvedic Kash
        {0x1ce2, 0x1ce8},  // Vedic Sign Visarga Svari..Vedic Sign Visarga Anuda
        {0x1ced, 0x1ced},  // Vedic Sign Tiryak       ..Vedic Sign Tiryak
        {0x1cf4, 0x1cf4},  // Vedic Tone Candra Above ..Vedic Tone Candra Above
        {0x1cf8, 0x1cf9},  // Vedic Tone Ring Above   ..Vedic Tone Double Ring A
        {0x1dc0, 0x1df5},  // Combining Dotted Grave A..Combining Up Tack Above
        {0x1dfb, 0x1dff},  // (nil)                   ..Combining Right Arrowhea
        {0x20d0, 0x20f0},  // Combining Left Harpoon A..Combining Asterisk Above
        {0x2cef, 0x2cf1},  // Coptic Combining Ni Abov..Coptic Combining Spiritu
        {0x2d7f, 0x2d7f},  // Tifinagh Consonant Joine..Tifinagh Consonant Joine
        {0x2de0, 0x2dff},  // Combining Cyrillic Lette..Combining Cyrillic Lette
        {0x302a, 0x302d},  // Ideographic Level Tone M..Ideographic Entering Ton
        {0x3099, 0x309a},  // Combining Katakana-hirag..Combining Katakana-hirag
        {0xa66f, 0xa672},  // Combining Cyrillic Vzmet..Combining Cyrillic Thous
        {0xa674, 0xa67d},  // Combining Cyrillic Lette..Combining Cyrillic Payer
        {0xa69e, 0xa69f},  // Combining Cyrillic Lette..Combining Cyrillic Lette
        {0xa6f0, 0xa6f1},  // Bamum Combining Mark Koq..Bamum Combining Mark Tuk
        {0xa802, 0xa802},  // Syloti Nagri Sign Dvisva..Syloti Nagri Sign Dvisva
        {0xa806, 0xa806},  // Syloti Nagri Sign Hasant..Syloti Nagri Sign Hasant
        {0xa80b, 0xa80b},  // Syloti Nagri Sign Anusva..Syloti Nagri Sign Anusva
        {0xa825, 0xa826},  // Syloti Nagri Vowel Sign ..Syloti Nagri Vowel Sign
        {0xa8c4, 0xa8c5},  // Saurashtra Sign Virama  ..
        {0xa8e0, 0xa8f1},  // Combining Devanagari Dig..Combining Devanagari Sig
        {0xa926, 0xa92d},  // Kayah Li Vowel Ue       ..Kayah Li Tone Calya Plop
        {0xa947, 0xa951},  // Rejang Vowel Sign I     ..Rejang Consonant Sign R
        {0xa980, 0xa982},  // Javanese Sign Panyangga ..Javanese Sign Layar
        {0xa9b3, 0xa9b3},  // Javanese Sign Cecak Telu..Javanese Sign Cecak Telu
        {0xa9b6, 0xa9b9},  // Javanese Vowel Sign Wulu..Javanese Vowel Sign Suku
        {0xa9bc, 0xa9bc},  // Javanese Vowel Sign Pepe..Javanese Vowel Sign Pepe
        {0xa9e5, 0xa9e5},  // Myanmar Sign Shan Saw   ..Myanmar Sign Shan Saw
        {0xaa29, 0xaa2e},  // Cham Vowel Sign Aa      ..Cham Vowel Sign Oe
        {0xaa31, 0xaa32},  // Cham Vowel Sign Au      ..Cham Vowel Sign Ue
        {0xaa35, 0xaa36},  // Cham Consonant Sign La  ..Cham Consonant Sign Wa
        {0xaa43, 0xaa43},  // Cham Consonant Sign Fina..Cham Consonant Sign Fina
        {0xaa4c, 0xaa4c},  // Cham Consonant Sign Fina..Cham Consonant Sign Fina
        {0xaa7c, 0xaa7c},  // Myanmar Sign Tai Laing T..Myanmar Sign Tai Laing T
        {0xaab0, 0xaab0},  // Tai Viet Mai Kang       ..Tai Viet Mai Kang
        {0xaab2, 0xaab4},  // Tai Viet Vowel I        ..Tai Viet Vowel U
        {0xaab7, 0xaab8},  // Tai Viet Mai Khit       ..Tai Viet Vowel Ia
        {0xaabe, 0xaabf},  // Tai Viet Vowel Am       ..Tai Viet Tone Mai Ek
        {0xaac1, 0xaac1},  // Tai Viet Tone Mai Tho   ..Tai Viet Tone Mai Tho
        {0xaaec, 0xaaed},  // Meetei Mayek Vowel Sign ..Meetei Mayek Vowel Sign
        {0xaaf6, 0xaaf6},  // Meetei Mayek Virama     ..Meetei Mayek Virama
        {0xabe5, 0xabe5},  // Meetei Mayek Vowel Sign ..Meetei Mayek Vowel Sign
        {0xabe8, 0xabe8},  // Meetei Mayek Vowel Sign ..Meetei Mayek Vowel Sign
        {0xabed, 0xabed},  // Meetei Mayek Apun Iyek  ..Meetei Mayek Apun Iyek
        {0xfb1e, 0xfb1e},  // Hebrew Point Judeo-spani..Hebrew Point Judeo-spani
        {0xfe00, 0xfe0f},  // Variation Select||-1    ..Variation Select||-16
        {0xfe20, 0xfe2f},  // Combining Ligature Left ..Combining Cyrillic Titlo
        {0x101fd, 0x101fd},  // Phaistos Disc Sign Combi..Phaistos Disc Sign Combi
        {0x102e0, 0x102e0},  // Coptic Epact Thousands M..Coptic Epact Thousands M
        {0x10376, 0x1037a},  // Combining Old Permic Let..Combining Old Permic Let
        {0x10a01, 0x10a03},  // Kharoshthi Vowel Sign I ..Kharoshthi Vowel Sign Vo
        {0x10a05, 0x10a06},  // Kharoshthi Vowel Sign E ..Kharoshthi Vowel Sign O
        {0x10a0c, 0x10a0f},  // Kharoshthi Vowel Length ..Kharoshthi Sign Visarga
        {0x10a38, 0x10a3a},  // Kharoshthi Sign Bar Abov..Kharoshthi Sign Dot Belo
        {0x10a3f, 0x10a3f},  // Kharoshthi Virama       ..Kharoshthi Virama
        {0x10ae5, 0x10ae6},  // Manichaean Abbreviation ..Manichaean Abbreviation
        {0x11001, 0x11001},  // Brahmi Sign Anusvara    ..Brahmi Sign Anusvara
        {0x11038, 0x11046},  // Brahmi Vowel Sign Aa    ..Brahmi Virama
        {0x1107f, 0x11081},  // Brahmi Number Joiner    ..Kaithi Sign Anusvara
        {0x110b3, 0x110b6},  // Kaithi Vowel Sign U     ..Kaithi Vowel Sign Ai
        {0x110b9, 0x110ba},  // Kaithi Sign Virama      ..Kaithi Sign Nukta
        {0x11100, 0x11102},  // Chakma Sign Candrabindu ..Chakma Sign Visarga
        {0x11127, 0x1112b},  // Chakma Vowel Sign A     ..Chakma Vowel Sign Uu
        {0x1112d, 0x11134},  // Chakma Vowel Sign Ai    ..Chakma Maayyaa
        {0x11173, 0x11173},  // Mahajani Sign Nukta     ..Mahajani Sign Nukta
        {0x11180, 0x11181},  // Sharada Sign Candrabindu..Sharada Sign Anusvara
        {0x111b6, 0x111be},  // Sharada Vowel Sign U    ..Sharada Vowel Sign O
        {0x111ca, 0x111cc},  // Sharada Sign Nukta      ..Sharada Extra Sh||t Vowe
        {0x1122f, 0x11231},  // Khojki Vowel Sign U     ..Khojki Vowel Sign Ai
        {0x11234, 0x11234},  // Khojki Sign Anusvara    ..Khojki Sign Anusvara
        {0x11236, 0x11237},  // Khojki Sign Nukta       ..Khojki Sign Shadda
        {0x1123e, 0x1123e},  // (nil)                   ..
        {0x112df, 0x112df},  // Khudawadi Sign Anusvara ..Khudawadi Sign Anusvara
        {0x112e3, 0x112ea},  // Khudawadi Vowel Sign U  ..Khudawadi Sign Virama
        {0x11300, 0x11301},  // Grantha Sign Combining A..Grantha Sign Candrabindu
        {0x1133c, 0x1133c},  // Grantha Sign Nukta      ..Grantha Sign Nukta
        {0x11340, 0x11340},  // Grantha Vowel Sign Ii   ..Grantha Vowel Sign Ii
        {0x11366, 0x1136c},  // Combining Grantha Digit ..Combining Grantha Digit
        {0x11370, 0x11374},  // Combining Grantha Letter..Combining Grantha Letter
        {0x11438, 0x1143f},  // (nil)                   ..
        {0x11442, 0x11444},  // (nil)                   ..
        {0x11446, 0x11446},  // (nil)                   ..
        {0x114b3, 0x114b8},  // Tirhuta Vowel Sign U    ..Tirhuta Vowel Sign Vocal
        {0x114ba, 0x114ba},  // Tirhuta Vowel Sign Sh||t..Tirhuta Vowel Sign Sh||t
        {0x114bf, 0x114c0},  // Tirhuta Sign Candrabindu..Tirhuta Sign Anusvara
        {0x114c2, 0x114c3},  // Tirhuta Sign Virama     ..Tirhuta Sign Nukta
        {0x115b2, 0x115b5},  // Siddham Vowel Sign U    ..Siddham Vowel Sign Vocal
        {0x115bc, 0x115bd},  // Siddham Sign Candrabindu..Siddham Sign Anusvara
        {0x115bf, 0x115c0},  // Siddham Sign Virama     ..Siddham Sign Nukta
        {0x115dc, 0x115dd},  // Siddham Vowel Sign Alter..Siddham Vowel Sign Alter
        {0x11633, 0x1163a},  // Modi Vowel Sign U       ..Modi Vowel Sign Ai
        {0x1163d, 0x1163d},  // Modi Sign Anusvara      ..Modi Sign Anusvara
        {0x1163f, 0x11640},  // Modi Sign Virama        ..Modi Sign Ardhacandra
        {0x116ab, 0x116ab},  // Takri Sign Anusvara     ..Takri Sign Anusvara
        {0x116ad, 0x116ad},  // Takri Vowel Sign Aa     ..Takri Vowel Sign Aa
        {0x116b0, 0x116b5},  // Takri Vowel Sign U      ..Takri Vowel Sign Au
        {0x116b7, 0x116b7},  // Takri Sign Nukta        ..Takri Sign Nukta
        {0x1171d, 0x1171f},  // Ahom Consonant Sign Medi..Ahom Consonant Sign Medi
        {0x11722, 0x11725},  // Ahom Vowel Sign I       ..Ahom Vowel Sign Uu
        {0x11727, 0x1172b},  // Ahom Vowel Sign Aw      ..Ahom Sign Killer
        {0x11c30, 0x11c36},  // (nil)                   ..
        {0x11c38, 0x11c3d},  // (nil)                   ..
        {0x11c3f, 0x11c3f},  // (nil)                   ..
        {0x11c92, 0x11ca7},  // (nil)                   ..
        {0x11caa, 0x11cb0},  // (nil)                   ..
        {0x11cb2, 0x11cb3},  // (nil)                   ..
        {0x11cb5, 0x11cb6},  // (nil)                   ..
        {0x16af0, 0x16af4},  // Bassa Vah Combining High..Bassa Vah Combining High
        {0x16b30, 0x16b36},  // Pahawh Hmong Mark Cim Tu..Pahawh Hmong Mark Cim Ta
        {0x16f8f, 0x16f92},  // Miao Tone Right         ..Miao Tone Below
        {0x1bc9d, 0x1bc9e},  // Duployan Thick Letter Se..Duployan Double Mark
        {0x1d167, 0x1d169},  // Musical Symbol Combining..Musical Symbol Combining
        {0x1d17b, 0x1d182},  // Musical Symbol Combining..Musical Symbol Combining
        {0x1d185, 0x1d18b},  // Musical Symbol Combining..Musical Symbol Combining
        {0x1d1aa, 0x1d1ad},  // Musical Symbol Combining..Musical Symbol Combining
        {0x1d242, 0x1d244},  // Combining Greek Musical ..Combining Greek Musical
        {0x1da00, 0x1da36},  // Signwriting Head Rim    ..Signwriting Air Sucking
        {0x1da3b, 0x1da6c},  // Signwriting Mouth Closed..Signwriting Excitement
        {0x1da75, 0x1da75},  // Signwriting Upper Body T..Signwriting Upper Body T
        {0x1da84, 0x1da84},  // Signwriting Location Hea..Signwriting Location Hea
        {0x1da9b, 0x1da9f},  // Signwriting Fill Modifie..Signwriting Fill Modifie
        {0x1daa1, 0x1daaf},  // Signwriting Rotation Mod..Signwriting Rotation Mod
        {0x1e000, 0x1e006},  // (nil)                   ..
        {0x1e008, 0x1e018},  // (nil)                   ..
        {0x1e01b, 0x1e021},  // (nil)                   ..
        {0x1e023, 0x1e024},  // (nil)                   ..
        {0x1e026, 0x1e02a},  // (nil)                   ..
        {0x1e8d0, 0x1e8d6},  // Mende Kikakui Combining ..Mende Kikakui Combining
        {0x1e944, 0x1e94a},  // (nil)                   ..
        {0xe0100, 0xe01ef},  // Variation Select||-17   ..Variation Select||-256
    };
    // https://github.com/jquast/wcwidth/blob/master/wcwidth/table_wide.py
    // at commit 0d7de112202cc8b2ebe9232ff4a5c954f19d561a (2016-07-02):
    private static final int[][] WIDE_EASTASIAN = {
        {0x1100, 0x115f},  // Hangul Choseong Kiyeok  ..Hangul Choseong Filler
        {0x231a, 0x231b},  // Watch                   ..Hourglass
        {0x2329, 0x232a},  // Left-pointing Angle Brac..Right-pointing Angle Bra
        {0x23e9, 0x23ec},  // Black Right-pointing Dou..Black Down-pointing Doub
        {0x23f0, 0x23f0},  // Alarm Clock             ..Alarm Clock
        {0x23f3, 0x23f3},  // Hourglass With Flowing S..Hourglass With Flowing S
        {0x25fd, 0x25fe},  // White Medium Small Squar..Black Medium Small Squar
        {0x2614, 0x2615},  // Umbrella With Rain Drops..Hot Beverage
        {0x2648, 0x2653},  // Aries                   ..Pisces
        {0x267f, 0x267f},  // Wheelchair Symbol       ..Wheelchair Symbol
        {0x2693, 0x2693},  // Anch||                  ..Anch||
        {0x26a1, 0x26a1},  // High Voltage Sign       ..High Voltage Sign
        {0x26aa, 0x26ab},  // Medium White Circle     ..Medium Black Circle
        {0x26bd, 0x26be},  // Soccer Ball             ..Baseball
        {0x26c4, 0x26c5},  // Snowman Without Snow    ..Sun Behind Cloud
        {0x26ce, 0x26ce},  // Ophiuchus               ..Ophiuchus
        {0x26d4, 0x26d4},  // No Entry                ..No Entry
        {0x26ea, 0x26ea},  // Church                  ..Church
        {0x26f2, 0x26f3},  // Fountain                ..Flag In Hole
        {0x26f5, 0x26f5},  // Sailboat                ..Sailboat
        {0x26fa, 0x26fa},  // Tent                    ..Tent
        {0x26fd, 0x26fd},  // Fuel Pump               ..Fuel Pump
        {0x2705, 0x2705},  // White Heavy Check Mark  ..White Heavy Check Mark
        {0x270a, 0x270b},  // Raised Fist             ..Raised Hand
        {0x2728, 0x2728},  // Sparkles                ..Sparkles
        {0x274c, 0x274c},  // Cross Mark              ..Cross Mark
        {0x274e, 0x274e},  // Negative Squared Cross M..Negative Squared Cross M
        {0x2753, 0x2755},  // Black Question Mark ||na..White Exclamation Mark O
        {0x2757, 0x2757},  // Heavy Exclamation Mark S..Heavy Exclamation Mark S
        {0x2795, 0x2797},  // Heavy Plus Sign         ..Heavy Division Sign
        {0x27b0, 0x27b0},  // Curly Loop              ..Curly Loop
        {0x27bf, 0x27bf},  // Double Curly Loop       ..Double Curly Loop
        {0x2b1b, 0x2b1c},  // Black Large Square      ..White Large Square
        {0x2b50, 0x2b50},  // White Medium Star       ..White Medium Star
        {0x2b55, 0x2b55},  // Heavy Large Circle      ..Heavy Large Circle
        {0x2e80, 0x2e99},  // Cjk Radical Repeat      ..Cjk Radical Rap
        {0x2e9b, 0x2ef3},  // Cjk Radical Choke       ..Cjk Radical C-simplified
        {0x2f00, 0x2fd5},  // Kangxi Radical One      ..Kangxi Radical Flute
        {0x2ff0, 0x2ffb},  // Ideographic Description ..Ideographic Description
        {0x3000, 0x303e},  // Ideographic Space       ..Ideographic Variation In
        {0x3041, 0x3096},  // Hiragana Letter Small A ..Hiragana Letter Small Ke
        {0x3099, 0x30ff},  // Combining Katakana-hirag..Katakana Digraph Koto
        {0x3105, 0x312d},  // Bopomofo Letter B       ..Bopomofo Letter Ih
        {0x3131, 0x318e},  // Hangul Letter Kiyeok    ..Hangul Letter Araeae
        {0x3190, 0x31ba},  // Ideographic Annotation L..Bopomofo Letter Zy
        {0x31c0, 0x31e3},  // Cjk Stroke T            ..Cjk Stroke Q
        {0x31f0, 0x321e},  // Katakana Letter Small Ku..Parenthesized K||ean Cha
        {0x3220, 0x3247},  // Parenthesized Ideograph ..Circled Ideograph Koto
        {0x3250, 0x32fe},  // Partnership Sign        ..Circled Katakana Wo
        {0x3300, 0x4dbf},  // Square Apaato           ..
        {0x4e00, 0xa48c},  // Cjk Unified Ideograph-4e..Yi Syllable Yyr
        {0xa490, 0xa4c6},  // Yi Radical Qot          ..Yi Radical Ke
        {0xa960, 0xa97c},  // Hangul Choseong Tikeut-m..Hangul Choseong Ssangyeo
        {0xac00, 0xd7a3},  // Hangul Syllable Ga      ..Hangul Syllable Hih
        {0xf900, 0xfaff},  // Cjk Compatibility Ideogr..
        {0xfe10, 0xfe19},  // Presentation F||m F|| Ve..Presentation F||m F|| Ve
        {0xfe30, 0xfe52},  // Presentation F||m F|| Ve..Small Full Stop
        {0xfe54, 0xfe66},  // Small Semicolon         ..Small Equals Sign
        {0xfe68, 0xfe6b},  // Small Reverse Solidus   ..Small Commercial At
        {0xff01, 0xff60},  // Fullwidth Exclamation Ma..Fullwidth Right White Pa
        {0xffe0, 0xffe6},  // Fullwidth Cent Sign     ..Fullwidth Won Sign
        {0x16fe0, 0x16fe0},  // (nil)                   ..
        {0x17000, 0x187ec},  // (nil)                   ..
        {0x18800, 0x18af2},  // (nil)                   ..
        {0x1b000, 0x1b001},  // Katakana Letter Archaic ..Hiragana Letter Archaic
        {0x1f004, 0x1f004},  // Mahjong Tile Red Dragon ..Mahjong Tile Red Dragon
        {0x1f0cf, 0x1f0cf},  // Playing Card Black Joker..Playing Card Black Joker
        {0x1f18e, 0x1f18e},  // Negative Squared Ab     ..Negative Squared Ab
        {0x1f191, 0x1f19a},  // Squared Cl              ..Squared Vs
        {0x1f200, 0x1f202},  // Square Hiragana Hoka    ..Squared Katakana Sa
        {0x1f210, 0x1f23b},  // Squared Cjk Unified Ideo..
        {0x1f240, 0x1f248},  // T||toise Shell Bracketed..T||toise Shell Bracketed
        {0x1f250, 0x1f251},  // Circled Ideograph Advant..Circled Ideograph Accept
        {0x1f300, 0x1f320},  // Cyclone                 ..Shooting Star
        {0x1f32d, 0x1f335},  // Hot Dog                 ..Cactus
        {0x1f337, 0x1f37c},  // Tulip                   ..Baby Bottle
        {0x1f37e, 0x1f393},  // Bottle With Popping C||k..Graduation Cap
        {0x1f3a0, 0x1f3ca},  // Carousel H||se          ..Swimmer
        {0x1f3cf, 0x1f3d3},  // Cricket Bat And Ball    ..Table Tennis Paddle And
        {0x1f3e0, 0x1f3f0},  // House Building          ..European Castle
        {0x1f3f4, 0x1f3f4},  // Waving Black Flag       ..Waving Black Flag
        {0x1f3f8, 0x1f43e},  // Badminton Racquet And Sh..Paw Prints
        {0x1f440, 0x1f440},  // Eyes                    ..Eyes
        {0x1f442, 0x1f4fc},  // Ear                     ..Videocassette
        {0x1f4ff, 0x1f53d},  // Prayer Beads            ..Down-pointing Small Red
        {0x1f54b, 0x1f54e},  // Kaaba                   ..Men||ah With Nine Branch
        {0x1f550, 0x1f567},  // Clock Face One Oclock   ..Clock Face Twelve-thirty
        {0x1f57a, 0x1f57a},  // (nil)                   ..
        {0x1f595, 0x1f596},  // Reversed Hand With Middl..Raised Hand With Part Be
        {0x1f5a4, 0x1f5a4},  // (nil)                   ..
        {0x1f5fb, 0x1f64f},  // Mount Fuji              ..Person With Folded Hands
        {0x1f680, 0x1f6c5},  // Rocket                  ..Left Luggage
        {0x1f6cc, 0x1f6cc},  // Sleeping Accommodation  ..Sleeping Accommodation
        {0x1f6d0, 0x1f6d2},  // Place Of W||ship        ..
        {0x1f6eb, 0x1f6ec},  // Airplane Departure      ..Airplane Arriving
        {0x1f6f4, 0x1f6f6},  // (nil)                   ..
        {0x1f910, 0x1f91e},  // Zipper-mouth Face       ..
        {0x1f920, 0x1f927},  // (nil)                   ..
        {0x1f930, 0x1f930},  // (nil)                   ..
        {0x1f933, 0x1f93e},  // (nil)                   ..
        {0x1f940, 0x1f94b},  // (nil)                   ..
        {0x1f950, 0x1f95e},  // (nil)                   ..
        {0x1f980, 0x1f991},  // Crab                    ..
        {0x1f9c0, 0x1f9c0},  // Cheese Wedge            ..Cheese Wedge
        {0x20000, 0x2fffd},  // Cjk Unified Ideograph-20..
        {0x30000, 0x3fffd},  // (nil)                   ..
    };
    private static boolean intable(int[][] table, int c) {
        // First quick check f|| Latin1 etc. characters.
        if (c < table[0][0]) return false;
        // Binary search in table.
        int bot = 0;
        int top = table.length - 1; // (int)(size / sizeof(struct interval) - 1);
        while (top >= bot) {
            int mid = (bot + top) / 2;
            if (table[mid][1] < c) {
                bot = mid + 1;
            } else if (table[mid][0] > c) {
                top = mid - 1;
            } else {
                return true;
            }
        }
        return false;
    }
    /** Return the terminal display width of a code point: 0, 1 || 2. */
    public static int width(int ucs) {
        if (ucs == 0 ||
            ucs == 0x034F ||
            (0x200B <= ucs && ucs <= 0x200F) ||
            ucs == 0x2028 ||
            ucs == 0x2029 ||
            (0x202A <= ucs && ucs <= 0x202E) ||
            (0x2060 <= ucs && ucs <= 0x2063)) {
            return 0;
        }
        // C0/C1 control characters
        // Termux change: Return 0 instead of -1.
        if (ucs < 32 || (0x07F <= ucs && ucs < 0x0A0)) return 0;
        // combining characters with zero width
        if (intable(ZERO_WIDTH, ucs)) return 0;
        return intable(WIDE_EASTASIAN, ucs) ? 2 : 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/TerminalView.java
+++ b/app/src/main/java/com/termux/view/TerminalView.java
@@ -1,903 +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.graphics.Canvas;
 import android.graphics.Rect;
 import android.graphics.Typeface;
 import android.graphics.drawable.BitmapDrawable;
 import android.os.Build;
 import android.text.Editable;
 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.TerminalEmulator;
 import com.termux.terminal.TerminalSession;
 /** 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 = false;
    /** 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;
    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() {
            boolean scrolledWithFinger;
            @Override
            public boolean onUp(MotionEvent e) {
                mScrollRemainder = 0.0f;
                if (mEmulator != null && mEmulator.isMouseTrackingActive() && !mIsSelectingText && !scrolledWithFinger) {
                    // 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;
                }
                scrolledWithFinger = false;
                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 e, float distanceX, float distanceY) {
                if (mEmulator == null || mIsSelectingText) return true;
                if (mEmulator.isMouseTrackingActive() && e.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(e, TerminalEmulator.MOUSE_LEFT_BUTTON_MOVED, true);
                } else {
                    scrolledWithFinger = true;
                    distanceY += mScrollRemainder;
                    int deltaRows = (int) (distanceY / mRenderer.mFontLineSpacing);
                    mScrollRemainder = distanceY - deltaRows * mRenderer.mFontLineSpacing;
                    doScroll(e, 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) {
        // Using InputType.NULL is the most correct input type and avoids issues with other hacks.
        //
        // Previous keyboard issues:
        // https://github.com/termux/termux-packages/issues/25
        // https://github.com/termux/termux-app/issues/87.
        // https://github.com/termux/termux-app/issues/126.
        // https://github.com/termux/termux-app/issues/137 (japanese chars and TYPE_NULL).
        outAttrs.inputType = InputType.TYPE_NULL;
        outAttrs.imeOptions |= EditorInfo.IME_FLAG_NO_FULLSCREEN |
                               EditorInfo.IME_FLAG_NO_ENTER_ACTION |
                               EditorInfo.IME_ACTION_NONE;
        return new BaseInputConnection(this, true) {
            @Override
            public boolean finishComposingText() {
                if (LOG_KEY_EVENTS) Log.i(EmulatorDebug.LOG_TAG, "IME: finishComposingText()");
                super.finishComposingText();
                sendTextToTerminal(getEditable());
                getEditable().clear();
                return true;
            }
            @Override
            public boolean commitText(CharSequence text, int newCursorPosition) {
                if (LOG_KEY_EVENTS) {
                    Log.i(EmulatorDebug.LOG_TAG, "IME: commitText(\"" + text + "\", " + newCursorPosition + ")");
                }
                super.commitText(text, newCursorPosition);
                if (mEmulator == null) return true;
                Editable content = getEditable();
                sendTextToTerminal(content);
                content.clear();
                return true;
            }
            @Override
            public boolean deleteSurroundingText(int leftLength, int rightLength) {
                if (LOG_KEY_EVENTS) {
                    Log.i(EmulatorDebug.LOG_TAG, "IME: deleteSurroundingText(" + leftLength + ", " + rightLength + ")");
                }
                // The stock Samsung keyboard with 'Auto check spelling' enabled sends leftLength > 1.
                KeyEvent deleteKey = new KeyEvent(KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DEL);
                for (int i = 0; i < leftLength; i++) sendKeyEvent(deleteKey);
                return super.deleteSurroundingText(leftLength, rightLength);
            }
            void sendTextToTerminal(CharSequence text) {
                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;
                    }
                    boolean ctrlHeld = false;
                    if (codePoint <= 31 && codePoint != 27) {
                        // E.g. penti keyboard for ctrl input.
                        ctrlHeld = true;
                        switch (codePoint) {
                            case 31:
                                codePoint = '_';
                                break;
                            case 30:
                                codePoint = '^';
                                break;
                            case 29:
                                codePoint = ']';
                                break;
                            case 28:
                                codePoint = '\\';
                                break;
                            default:
                                codePoint += 96;
                                break;
                        }
                    }
                    inputCodePoint(codePoint, ctrlHeld, false);
                }
            }
        };
    }
    @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();
    }
    public void setTypeface(Typeface newTypeface) {
        mRenderer = new TerminalRenderer(mRenderer.mTextSize, newTypeface);
        updateSize();
        invalidate();
    }
    @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;
        if (mOnKeyListener.onKeyDown(keyCode, event, mTermSession)) {
            invalidate();
            return true;
        } else if (event.isSystem() && (!mOnKeyListener.shouldBackButtonBeMappedToEscape() || keyCode != KeyEvent.KEYCODE_BACK)) {
            return super.onKeyDown(keyCode, event);
        } else if (event.getAction() == KeyEvent.ACTION_MULTIPLE && keyCode == KeyEvent.KEYCODE_UNKNOWN) {
            mTermSession.write(event.getCharacters());
            return true;
        }
        final int metaState = event.getMetaState();
        final boolean controlDownFromEvent = event.isCtrlPressed();
        final boolean leftAltDownFromEvent = (metaState & KeyEvent.META_ALT_LEFT_ON) != 0;
        final boolean rightAltDownFromEvent = (metaState & KeyEvent.META_ALT_RIGHT_ON) != 0;
        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 + ")");
        }
        final boolean controlDown = controlDownFromEvent || mOnKeyListener.readControlKey();
        final boolean altDown = leftAltDownFromEvent || mOnKeyListener.readAltKey();
        if (mOnKeyListener.onCodePoint(codePoint, controlDown, mTermSession)) return;
        if (controlDown) {
            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 == '/') {
                // "Ctrl-/ sends 0x1f which is equivalent of Ctrl-_ since the days of VT102"
                // - http://apple.stackexchange.com/questions/24261/how-do-i-send-c-that-is-control-slash-to-the-terminal
                codePoint = 31;
            } else if (codePoint == '8') {
                codePoint = 127; // DEL
            }
        }
        if (codePoint > -1) {
            // 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(altDown, 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 (mOnKeyListener.onKeyUp(keyCode, event)) {
            invalidate();
            return true;
        } else if (event.isSystem()) {
            // Let system key events through.
            return super.onKeyUp(keyCode, event);
        }
        return true;
    }
    /**
     * 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(4, (int) (viewWidth / mRenderer.mFontWidth));
        int newRows = Math.max(4, (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) {
                    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).setShowAsAction(show);
                    menu.add(Menu.NONE, 2, Menu.NONE, R.string.paste_text).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/res/anim/on_bell.xml
+++ b/app/src/main/res/anim/on_bell.xml
@@ -1,7 +0,0 @@
 <set xmlns:android="http://schemas.android.com/apk/res/android">
    <translate android:duration="30"
               android:fromXDelta="-1%"
               android:repeatCount="1"
               android:repeatMode="reverse"
               android:toXDelta="1%"/>
 </set>
--- a/app/src/main/res/drawable-anydpi-v26/ic_launcher.xml
+++ b/app/src/main/res/drawable-anydpi-v26/ic_launcher.xml
@@ -0,0 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
    <background android:drawable="@android:color/black"/>
    <foreground android:drawable="@drawable/ic_foreground"/>
 </adaptive-icon>
--- 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/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/app/src/main/res/drawable/ic_foreground.xml
+++ b/app/src/main/res/drawable/ic_foreground.xml
@@ -0,0 +1,28 @@
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
    android:height="108dp"
    android:width="108dp"
    android:viewportWidth="108"
    android:viewportHeight="108">
    <!-- Keep in sync with non-adaptive ic_launcher.xml -->
    <path
        android:fillColor="#FFFFFF"
        android:pathData="M34,38
                          h6
                          l12,16
                          l-12,16
                          h-6
                          l12,-16
                          "
        />
    <path
        android:fillColor="#FFFFFF"
        android:pathData="M56,66
                          h18
                          v4
                          h-18
                          "
        />
 </vector>
--- a/app/src/main/res/drawable/ic_launcher.xml
+++ b/app/src/main/res/drawable/ic_launcher.xml
@@ -0,0 +1,34 @@
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
    android:height="108dp"
    android:width="108dp"
    android:viewportWidth="108"
    android:viewportHeight="108">
    <path
        android:fillColor="#000000"
        android:pathData="M18,54
                          A36,36 0 1,1 90,54
                          A36,36 0 1,1 18,54 Z" />
    <!-- Keep in sync with adaptive ic_foreground.xml: -->
    <path
        android:fillColor="#FFFFFF"
        android:pathData="M34,38
                          h6
                          l12,16
                          l-12,16
                          h-6
                          l12,-16
                          "
        />
    <path
        android:fillColor="#FFFFFF"
        android:pathData="M56,66
                          h18
                          v4
                          h-18
                          "
        />
 </vector>
--- a/app/src/main/res/drawable/ic_service_notification.xml
+++ b/app/src/main/res/drawable/ic_service_notification.xml
@@ -1,33 +1,24 @@
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:height="48dp"
+    android:width="24dp"
-    android:width="48dp"
+    android:height="24dp"
-    android:viewportWidth="48"
+    android:viewportWidth="24"
-    android:viewportHeight="48">
+    android:viewportHeight="24">
    <!--
-        https://material.google.com/style/icons.html
+        Updated notification icon compliant with system icons guidelines
        https://material.io/design/iconography/system-icons.html
    -->
-    <!-- Screen border. -->
+    <group>
-    <path android:fillColor="#00000000"
+        <clip-path
-          android:strokeColor="#000"
+            android:pathData="M0,0h24v24h-24z"/>
          android:strokeWidth="3"
          android:pathData="M7,4
                            l34,0
                            q3 0,3 3
                            l0,34
                            q0 3, -3 3
                            l-34,0
                            q-3 0, -3-3
                            l0 -34
                            q0 -3, 3 -3"
          />
-    <!-- Block cursor. -->
+        <path
-    <path android:fillColor="#000"
+            android:pathData="M5,4H2L8,12L2,20H5L11,12L5,4Z"
-          android:pathData="M12,12
+            android:fillColor="#ffffff"/>
                            l5,0
                            l0,10
                            l-5,0"
        />
        <path
            android:pathData="M13,18H22V20H13V18Z"
            android:fillColor="#ffffff"/>
    </group>
 </vector>
--- a/app/src/main/res/drawable/selected_session_background_black.xml
+++ b/app/src/main/res/drawable/selected_session_background_black.xml
@@ -0,0 +1,5 @@
 <?xml version="1.0" encoding="utf-8" ?>
 <selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_activated="true" android:drawable="@drawable/current_session_black"/>
    <item android:state_activated="false" android:drawable="@drawable/session_ripple_black"/>
 </selector>
--- a/app/src/main/res/drawable/session_ripple.xml
+++ b/app/src/main/res/drawable/session_ripple.xml
@@ -4,4 +4,4 @@
    <item>
        <color android:color="@android:color/white" />
    </item>
-</ripple>
+</ripple>
--- a/app/src/main/res/drawable/session_ripple_black.xml
+++ b/app/src/main/res/drawable/session_ripple_black.xml
@@ -0,0 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <ripple xmlns:android="http://schemas.android.com/apk/res/android"
    android:color="@android:color/darker_gray" >
    <item>
        <color android:color="@android:color/background_dark" />
    </item>
 </ripple>
--- a/app/src/main/res/drawable/text_select_handle_left_material.xml
+++ b/app/src/main/res/drawable/text_select_handle_left_material.xml
@@ -1,4 +0,0 @@
 <?xml version="1.0" encoding="utf-8"?>
 <bitmap xmlns:android="http://schemas.android.com/apk/res/android"
        android:src="@drawable/text_select_handle_left_mtrl_alpha"
        android:tint="#2196F3" />
--- a/app/src/main/res/drawable/text_select_handle_right_material.xml
+++ b/app/src/main/res/drawable/text_select_handle_right_material.xml
@@ -1,4 +0,0 @@
 <?xml version="1.0" encoding="utf-8"?>
 <bitmap xmlns:android="http://schemas.android.com/apk/res/android"
        android:src="@drawable/text_select_handle_right_mtrl_alpha"
        android:tint="#2196F3" />
--- a/app/src/main/res/layout/drawer_layout.xml
+++ b/app/src/main/res/layout/drawer_layout.xml
@@ -1,9 +1,10 @@
 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
-    android:orientation="vertical">
+    android:orientation="vertical"
    android:fitsSystemWindows="true">
-    <android.support.v4.widget.DrawerLayout
+    <androidx.drawerlayout.widget.DrawerLayout
        android:id="@+id/drawer_layout"
        android:layout_width="match_parent"
        android:layout_alignParentTop="true"
@@ -14,9 +15,13 @@
            android:id="@+id/terminal_view"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_marginRight="3dp"
            android:layout_marginLeft="3dp"
            android:focusableInTouchMode="true"
            android:scrollbarThumbVertical="@drawable/terminal_scroll_shape"
-            android:scrollbars="vertical" />
+            android:scrollbars="vertical"
            android:importantForAutofill="no"
            android:autofillHints="password" />
        <LinearLayout
            android:id="@+id/left_drawer"
@@ -63,13 +68,13 @@
            </LinearLayout>
        </LinearLayout>
-    </android.support.v4.widget.DrawerLayout>
+    </androidx.drawerlayout.widget.DrawerLayout>
-    <android.support.v4.view.ViewPager
+    <androidx.viewpager.widget.ViewPager
        android:id="@+id/viewpager"
        android:visibility="gone"
        android:layout_width="match_parent"
-        android:layout_height="40dp"
+        android:layout_height="37.5dp"
        android:background="@android:drawable/screen_background_dark_transparent"
        android:layout_alignParentBottom="true" />
 </RelativeLayout>
--- a/app/src/main/res/layout/extra_keys_right.xml
+++ b/app/src/main/res/layout/extra_keys_right.xml
@@ -7,7 +7,9 @@
    android:imeOptions="actionSend|flagNoFullscreen"
    android:maxLines="1"
    android:inputType="text"
    android:importantForAutofill="no"
    android:textColor="@android:color/white"
    android:textColorHighlight="@android:color/darker_gray"
    android:paddingTop="0dp"
    android:textCursorDrawable="@null"
    android:paddingBottom="0dp"
--- a/app/src/main/res/mipmap-hdpi/ic_launcher.png
+++ b/app/src/main/res/mipmap-hdpi/ic_launcher.png
--- a/app/src/main/res/mipmap-hdpi/ic_launcher_round.png
+++ b/app/src/main/res/mipmap-hdpi/ic_launcher_round.png
--- a/app/src/main/res/mipmap-mdpi/ic_launcher.png
+++ b/app/src/main/res/mipmap-mdpi/ic_launcher.png
--- a/app/src/main/res/mipmap-mdpi/ic_launcher_round.png
+++ b/app/src/main/res/mipmap-mdpi/ic_launcher_round.png
--- a/app/src/main/res/mipmap-xhdpi/ic_launcher.png
+++ b/app/src/main/res/mipmap-xhdpi/ic_launcher.png
--- a/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png
+++ b/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png
--- a/app/src/main/res/mipmap-xxhdpi/ic_launcher.png
+++ b/app/src/main/res/mipmap-xxhdpi/ic_launcher.png
--- a/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png
+++ b/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png
--- a/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png
+++ b/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png
--- a/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png
+++ b/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -1,60 +1,54 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-   <string name="application_name">Termux</string>
+    <string name="application_name">Termux</string>
-   <string name="shared_user_label">Termux user</string>
+    <string name="shared_user_label">Termux user</string>
-   <string name="new_session">New session</string>
+    <string name="run_command_permission_label">Run commands in Termux environment</string>
-   <string name="new_session_failsafe">Failsafe</string>
+    <string name="run_command_permission_description">execute arbitrary commands within Termux environment</string>
-   <string name="toggle_soft_keyboard">Keyboard</string>
+    <string name="new_session">New session</string>
-   <string name="reset_terminal">Reset</string>
+    <string name="new_session_failsafe">Failsafe</string>
-   <string name="style_terminal">Style</string>
+    <string name="toggle_soft_keyboard">Keyboard</string>
-   <string name="toggle_fullscreen">Fullscreen</string>
+    <string name="reset_terminal">Reset</string>
-   <string name="share_transcript_title">Terminal transcript</string>
+    <string name="style_terminal">Style</string>
-   <string name="help">Help</string>
+    <string name="share_transcript_title">Terminal transcript</string>
    <string name="help">Help</string>
    <string name="toggle_keep_screen_on">Keep screen on</string>
    <string name="autofill_password">Autofill password</string>
-   <string name="welcome_dialog_title">Welcome to Termux</string>
+    <string name="bootstrap_installer_body">Installing…</string>
-   <string name="welcome_dialog_body">Long press and select <i>More…</i> to show a menu where <i>Help</i> is available.\n\nExecute <b>apt update</b> to update the packages list before installing packages.</string>
+    <string name="bootstrap_error_title">Unable to install</string>
-   <string name="welcome_dialog_dont_show_again_button">Do not show again</string>
+    <string name="bootstrap_error_body">Termux was unable to install the bootstrap packages.</string>
    <string name="bootstrap_error_abort">Abort</string>
    <string name="bootstrap_error_try_again">Try again</string>
    <string name="bootstrap_error_not_primary_user_message">Termux can only be installed on the primary user account.</string>
-   <string name="bootstrap_installer_body">Installing…</string>
+    <string name="max_terminals_reached_title">Max terminals reached</string>
-   <string name="bootstrap_error_title">Unable to install</string>
+    <string name="max_terminals_reached_message">Close down existing ones before creating new.</string>
   <string name="bootstrap_error_body">Termux was unable to install the bootstrap packages.\n\nCheck your network connection and try again.</string>
   <string name="bootstrap_error_abort">Abort</string>
   <string name="bootstrap_error_try_again">Try again</string>
   <string name="bootstrap_error_not_primary_user_message">Termux can only be installed on the primary user account.</string>
-   <string name="max_terminals_reached_title">Max terminals reached</string>
+    <string name="reset_toast_notification">Terminal reset.</string>
   <string name="max_terminals_reached_message">Close down existing ones before creating new.</string>
-   <string name="reset_toast_notification">Terminal reset.</string>
+    <string name="select_url">Select URL</string>
    <string name="select_url_dialog_title">Click URL to copy or long press to open</string>
    <string name="select_all_and_share">Share transcript</string>
    <string name="select_url_no_found">No URL found in the terminal.</string>
    <string name="select_url_copied_to_clipboard">URL copied to clipboard</string>
    <string name="share_transcript_chooser_title">Send text to:</string>
-  <string name="select_url">Select URL</string>
+    <string name="kill_process">Kill process (%d)</string>
-  <string name="select_url_dialog_title">Click URL to copy or long press to open</string>
+    <string name="confirm_kill_process">Really kill this session?</string>
  <string name="select_all_and_share">Share transcript</string>
  <string name="select_url_no_found">No URL found in the terminal.</string>
  <string name="select_url_copied_to_clipboard">URL copied to clipboard</string>
  <string name="share_transcript_chooser_title">Send text to:</string>
-  <string name="paste_text">Paste</string>
+    <string name="session_rename_title">Set session name</string>
-  <string name="copy_text">Copy</string>
+    <string name="session_rename_positive_button">Set</string>
-  <string name="text_selection_more">More…</string>
+    <string name="session_new_named_title">New named session</string>
    <string name="session_new_named_positive_button">Create</string>
-  <string name="kill_process">Kill process (%d)</string>
+    <string name="styling_not_installed">The Termux:Style add-on is not installed.</string>
-  <string name="confirm_kill_process">Really kill this session?</string>
+    <string name="styling_install">Install</string>
-  <string name="session_rename_title">Set session name</string>
+    <string name="notification_action_exit">Exit</string>
-  <string name="session_rename_positive_button">Set</string>
+    <string name="notification_action_wake_lock">Acquire wakelock</string>
-  <string name="session_new_named_title">New named session</string>
+    <string name="notification_action_wake_unlock">Release wakelock</string>
  <string name="session_new_named_positive_button">Create</string>
  <string name="styling_not_installed">The Termux:Style add-on is not installed.</string>
  <string name="styling_install">Install</string>
  <string name="notification_action_exit">Exit</string>
  <string name="notification_action_wake_lock">Acquire wakelock</string>
  <string name="notification_action_wake_unlock">Release wakelock</string>
  <string name="file_received_title">Save file in ~/downloads/</string>
  <string name="file_received_edit_button">Edit</string>
  <string name="file_received_open_folder_button">Open folder</string>
    <string name="file_received_title">Save file in ~/downloads/</string>
    <string name="file_received_edit_button">Edit</string>
    <string name="file_received_open_folder_button">Open folder</string>
 </resources>
--- a/app/src/main/res/values/styles.xml
+++ b/app/src/main/res/values/styles.xml
@@ -1,10 +1,9 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources xmlns:android="http://schemas.android.com/apk/res/android">
    <!-- See https://developer.android.com/training/material/theme.html for how to customize the Material theme. -->
    <!-- NOTE: Cannot use "Light." since it hides the terminal scrollbar on the default black background. -->
    <style name="Theme.Termux" parent="@android:style/Theme.Material.Light.NoActionBar">
        <item name="android:statusBarColor">#000000</item>
        <item name="android:colorPrimary">#FF000000</item>
        <item name="android:windowBackground">@android:color/black</item>
        <!-- Seen in buttons on left drawer: -->
@@ -13,11 +12,38 @@
        <!-- Avoid action mode toolbar pushing down terminal content when
             selecting text on pre-6.0 (non-floating toolbar). -->
        <item name="android:windowActionModeOverlay">true</item>
        <item name="android:windowTranslucentStatus">true</item>
        <item name="android:windowTranslucentNavigation">true</item>
        <!-- https://developer.android.com/training/tv/start/start.html#transition-color -->
        <item name="android:windowAllowReturnTransitionOverlap">true</item>
        <item name="android:windowAllowEnterTransitionOverlap">true</item>
    </style>
-	<style name="TermuxAlertDialogStyle" parent="@android:style/Theme.Material.Light.Dialog.Alert">
+    <style name="TermuxAlertDialogStyle" parent="@android:style/Theme.Material.Light.Dialog.Alert">
-	    <!-- Seen in buttons on alert dialog: -->
+        <!-- Seen in buttons on alert dialog: -->
        <item name="android:colorAccent">#212121</item>
    </style>
    <!-- See https://developer.android.com/training/material/theme.html for how to customize the Material theme. -->
    <!-- NOTE: Cannot use "Light." since it hides the terminal scrollbar on the default black background. -->
    <style name="Theme.Termux.Black" parent="@android:style/Theme.Material.NoActionBar">
        <item name="android:statusBarColor">#000000</item>
        <item name="android:colorPrimary">#FF000000</item>
        <item name="android:windowBackground">@android:color/black</item>
        <!-- Seen in buttons on left drawer: -->
        <item name="android:colorAccent">#FDFDFD</item>
        <!-- Avoid action mode toolbar pushing down terminal content when
             selecting text on pre-6.0 (non-floating toolbar). -->
        <item name="android:windowActionModeOverlay">true</item>
        <item name="android:windowTranslucentStatus">true</item>
        <item name="android:windowTranslucentNavigation">true</item>
        <!-- https://developer.android.com/training/tv/start/start.html#transition-color -->
        <item name="android:windowAllowReturnTransitionOverlap">true</item>
        <item name="android:windowAllowEnterTransitionOverlap">true</item>
    </style>
 </resources>
--- a/app/src/main/res/xml/backupscheme.xml
+++ b/app/src/main/res/xml/backupscheme.xml
@@ -1,5 +0,0 @@
 <?xml version="1.0" encoding="utf-8"?>
 <full-backup-content>
    <!-- See https://developer.android.com/training/backup/autosyncapi.html -->
    <include domain="file" path="home/backup" />
 </full-backup-content>
--- a/app/src/main/res/xml/shortcuts.xml
+++ b/app/src/main/res/xml/shortcuts.xml
@@ -1,12 +1,30 @@
-<shortcuts xmlns:android="http://schemas.android.com/apk/res/android">
+<shortcuts xmlns:tools="http://schemas.android.com/tools"
           xmlns:android="http://schemas.android.com/apk/res/android">
    <shortcut
        android:shortcutId="new_session"
        android:enabled="true"
        android:icon="@drawable/ic_new_session"
-        android:shortcutShortLabel="@string/new_session">
+        android:shortcutShortLabel="@string/new_session"
        tools:targetApi="n_mr1">
        <intent
            android:action="android.intent.action.RUN"
            android:targetPackage="com.termux"
            android:targetClass="com.termux.app.TermuxActivity"/>
    </shortcut>
    <shortcut
        android:shortcutId="new_failsafe_session"
        android:enabled="true"
        android:icon="@drawable/ic_new_session"
        android:shortcutShortLabel="@string/new_session_failsafe"
        tools:targetApi="n_mr1">
        <intent
            android:action="android.intent.action.RUN"
            android:targetPackage="com.termux"
            android:targetClass="com.termux.app.TermuxActivity">
            <extra android:name="com.termux.app.failsafe_session" android:value="true" />
        </intent>
    </shortcut>
 </shortcuts>
--- a/app/src/test/java/com/termux/app/TermuxActivityTest.java
+++ b/app/src/test/java/com/termux/app/TermuxActivityTest.java
@@ -1,25 +1,30 @@
 package com.termux.app;
-import junit.framework.TestCase;
+import org.junit.Assert;
 import org.junit.Test;
 import java.util.Collections;
 import java.util.LinkedHashSet;
-public class TermuxActivityTest extends TestCase {
+public class TermuxActivityTest {
-	private void assertUrlsAre(String text, String... urls) {
+    private void assertUrlsAre(String text, String... urls) {
-		LinkedHashSet<String> expected = new LinkedHashSet<>();
+        LinkedHashSet<String> expected = new LinkedHashSet<>();
-		Collections.addAll(expected, urls);
+        Collections.addAll(expected, urls);
-		assertEquals(expected, TermuxActivity.extractUrls(text));
+        Assert.assertEquals(expected, TermuxActivity.extractUrls(text));
-	}
+    }
-	public void testExtractUrls() {
+    @Test
-		assertUrlsAre("hello http://example.com world", "http://example.com");
+    public void testExtractUrls() {
        assertUrlsAre("hello http://example.com world", "http://example.com");
-		assertUrlsAre("http://example.com\nhttp://another.com", "http://example.com", "http://another.com");
+        assertUrlsAre("http://example.com\nhttp://another.com", "http://example.com", "http://another.com");
-		assertUrlsAre("hello http://example.com world and http://more.example.com with secure https://more.example.com",
+        assertUrlsAre("hello http://example.com world and http://more.example.com with secure https://more.example.com",
-				"http://example.com", "http://more.example.com", "https://more.example.com");
+            "http://example.com", "http://more.example.com", "https://more.example.com");
-	}
+
        assertUrlsAre("hello https://example.com/#bar https://example.com/foo#bar",
            "https://example.com/#bar", "https://example.com/foo#bar");
    }
 }
--- a/app/src/test/java/com/termux/filepicker/TermuxFileReceiverActivityTest.java
+++ b/app/src/test/java/com/termux/filepicker/TermuxFileReceiverActivityTest.java
@@ -0,0 +1,32 @@
 package com.termux.filepicker;
 import org.junit.Assert;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.robolectric.RobolectricTestRunner;
 import java.util.ArrayList;
 import java.util.List;
@RunWith(RobolectricTestRunner.class)
 public class TermuxFileReceiverActivityTest {
    @Test
    public void testIsSharedTextAnUrl() {
        List<String> validUrls = new ArrayList<>();
        validUrls.add("http://example.com");
        validUrls.add("https://example.com");
        validUrls.add("https://example.com/path/parameter=foo");
        validUrls.add("magnet:?xt=urn:btih:d540fc48eb12f2833163eed6421d449dd8f1ce1f&dn=Ubuntu+desktop+19.04+%2864bit%29&tr=udp%3A%2F%2Ftracker.openbittorrent.com%3A80&tr=udp%3A%2F%2Ftracker.publicbt.com%3A80&tr=udp%3A%2F%2Ftracker.ccc.de%3A80");
        for (String url : validUrls) {
            Assert.assertTrue(TermuxFileReceiverActivity.isSharedTextAnUrl(url));
        }
        List<String> invalidUrls = new ArrayList<>();
        invalidUrls.add("a test with example.com");
        for (String url : invalidUrls) {
            Assert.assertFalse(TermuxFileReceiverActivity.isSharedTextAnUrl(url));
        }
    }
 }
--- a/art/copy-to-other-apps.sh
+++ b/art/copy-to-other-apps.sh
@@ -1,20 +1,13 @@
 #!/bin/sh
 set -e -u
-for DENSITY in mdpi hdpi xhdpi xxhdpi xxxhdpi; do
+for APP in api boot styling tasker widget; do
-	FOLDER=../app/src/main/res/mipmap-$DENSITY
+	APPDIR=../../termux-$APP
-
+	for file in ic_foreground ic_launcher; do
-	for FILE in ic_launcher ic_launcher_round; do
+		cp ../app/src/main/res/drawable/$file.xml \
-		PNG=$FOLDER/$FILE.png
+			$APPDIR/app/src/main/res/drawable/$file.xml
 		# Update other apps:
 		for APP in tasker widget api; do
 			APPDIR=../../termux-$APP
 			if [ -d $APPDIR ]; then
 				APP_FOLDER=$APPDIR/app/src/main/res/mipmap-$DENSITY
 				mkdir -p $APP_FOLDER
 				cp $PNG $APP_FOLDER/$FILE.png
 			fi
 		done
 	done
 	cp ../app/src/main/res/drawable-anydpi-v26/ic_launcher.xml \
 		$APPDIR/app/src/main/res/drawable-anydpi-v26/$file.xml
 done
--- a/art/feature-graphic.svg
+++ b/art/feature-graphic.svg
@@ -0,0 +1,30 @@
 <?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
 <!--
  This is a feature graphic:
    https://support.google.com/googleplay/android-developer/answer/1078870
  - 1024px by 500px, no alpha
  - Don't include any copy or important visual information near the borders of the asset,
    specifically near the bottom third of the frame.
  - Try to center align any logo/copy information in the vertical and horizontal center of the frame.
  - If adding text, use large font sizes.
  - Your graphic may be displayed alone without the app icon.
 -->
 <svg xmlns="http://www.w3.org/2000/svg"
     version="1.1"
     viewBox="0 0 1024 500">
 <rect fill="#0" width="100%" height="100%" />
 <text id="shell_prompt"
       x="130"
       y="330"
       style="fill: #ffffff; font-size: 124px; font-family: Menlo;">
       <!--
   <tspan>$</tspan>
   <tspan x="290">Termux</tspan>
   <tspan x="734">█</tspan>
   -->
   <tspan>$ Termux █</tspan>
 </text>
 </svg>
--- a/art/generate-big-icon.sh
+++ b/art/generate-big-icon.sh
@@ -0,0 +1,23 @@
 #!/bin/sh
 set -e -u
 echo "Generating ~/termux-icons/ic_launcher.png..."
 mkdir -p ~/termux-icons/
 vector2svg ../app/src/main/res/drawable/ic_launcher.xml ~/termux-icons/ic_launcher.svg
 sed -i "" 's/viewBox="0 0 108 108"/viewBox="18 18 72 72"/' ~/termux-icons/ic_launcher.svg
 SIZE=512
 rsvg-convert \
 	-w $SIZE \
 	-h $SIZE \
 	-o ~/termux-icons/ic_launcher_$SIZE.png \
 	~/termux-icons/ic_launcher.svg
 rsvg-convert \
 	-b black \
 	-w $SIZE \
 	-h $SIZE \
 	-o ~/termux-icons/ic_launcher_square_$SIZE.png \
 	~/termux-icons/ic_launcher.svg
--- a/art/generate-feature-graphic.sh
+++ b/art/generate-feature-graphic.sh
@@ -0,0 +1,5 @@
 #!/bin/bash
 echo "Generating feature graphics to ~/termux-icons/termux-feature-graphic.png..."
 mkdir -p ~/termux-icons/
 rsvg-convert feature-graphic.svg > ~/termux-icons/feature-graphic.png
--- a/art/generate-launcher-images.sh
+++ b/art/generate-launcher-images.sh
--- a/art/generate-tv-banner.sh
+++ b/art/generate-tv-banner.sh
@@ -0,0 +1,9 @@
 #!/bin/bash
 echo "Generating feature graphics to ~/termux-icons/termux-feature-graphic.png..."
 mkdir -p ~/termux-icons/
 # The Android TV banner on google play (1280x720) has same aspect ratio
 # as the banner in the app (320x180).
 rsvg-convert -w 1280 -h 720 tv-banner.svg > ~/termux-icons/tv-banner.png
 rsvg-convert -w  320 -h 180 tv-banner.svg > ../app/src/main/res/drawable/banner.png
--- a/art/ic_launcher.svg
+++ b/art/ic_launcher.svg
@@ -4,20 +4,20 @@
    <path fill="#000"
          stroke="#BFCBCD"
          stroke-width="2"
-          d="M7,4
+          d="M9,6
-             l34,0
+             l30,0
             q3 0,3 3
-             l0,34
+             l0,30
             q0 3, -3 3
-             l-34,0
+             l-30,0
             q-3 0, -3-3
-             l0 -34
+             l0 -30
             q0 -3, 3 -3"
    />
    <!-- Block cursor. -->
    <path fill="#FFF"
-          d="M12,12
+          d="M14,14
             l5,0
             l0,10
             l-5,0"
--- a/art/ic_launcher_round.svg
+++ b/art/ic_launcher_round.svg
@@ -1,21 +0,0 @@
 <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 48 48">
    <!-- Screen and border. -->
    <path fill="#000"
          stroke="#BFCBCD"
          stroke-width="2"
          d="M 24, 24
             m -21, 0
             a 21,21 0 1,0 42,0
             a 21,21 0 1,0 -42,0"
    />
    <!-- Block cursor. -->
    <path fill="#FFF"
          d="M15,15
             l5,0
             l0,10
             l-5,0"
    />
 </svg>
--- a/art/tv-banner.svg
+++ b/art/tv-banner.svg
@@ -0,0 +1,23 @@
 <?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
 <!--
  This is a tv banner graphic:
    https://developer.android.com/design/tv/patterns.html#banner
  - Size: 320 x 180 px, xhdpi resource in app
  - Size: 1280 x 720 in google play.
  - Text must be included in the image. If your app is available in more
    than one language, you must provide versions of the banner image for each supported language.
 -->
 <svg xmlns="http://www.w3.org/2000/svg"
     version="1.1"
     viewBox="0 0 1280 720">
 <rect fill="#0" width="100%" height="100%" />
 <text id="shell_prompt"
       x="200"
       y="410"
       style="fill: #ffffff; font-size: 210px; font-family: Menlo, Monospace;">
   <tspan>Termux  ▌</tspan>
 </text>
 </svg>
--- a/build.gradle
+++ b/build.gradle
@@ -1,16 +1,16 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 buildscript {
    repositories {
        jcenter()
        google()
    }
    dependencies {
-        classpath 'com.android.tools.build:gradle:2.2.3'
+        classpath 'com.android.tools.build:gradle:4.1.1'
    }
 }
 allprojects {
    repositories {
        google()
        jcenter()
    }
 }
--- a/gradle.properties
+++ b/gradle.properties
@@ -13,3 +13,9 @@
 # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
 # org.gradle.parallel=true
 org.gradle.jvmargs=-Xmx2048M
 android.useAndroidX=true
 minSdkVersion=24
 targetSdkVersion=28
 ndkVersion=22.0.7026061
 compileSdkVersion=28
--- a/gradle/wrapper/gradle-wrapper.jar
+++ b/gradle/wrapper/gradle-wrapper.jar
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,5 @@
 #Sun Dec 04 17:26:05 CET 2016
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 distributionUrl=https\://services.gradle.org/distributions/gradle-6.7.1-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
 distributionUrl=https\://services.gradle.org/distributions/gradle-3.2.1-bin.zip
--- a/59
+++ b/59
@@ -1,5 +1,21 @@
 #!/usr/bin/env sh
 #
 # Copyright 2015 the original author or authors.
 #
 # 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
 #
 #      https://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.
 #
 ##############################################################################
 ##
 ##  Gradle start up script for UN*X
@@ -28,16 +44,16 @@ APP_NAME="Gradle"
 APP_BASE_NAME=`basename "$0"`
 # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-DEFAULT_JVM_OPTS=""
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
 # Use the maximum available, or set MAX_FD != -1 to use that value.
 MAX_FD="maximum"
-warn ( ) {
+warn () {
    echo "$*"
 }
-die ( ) {
+die () {
    echo
    echo "$*"
    echo
@@ -66,6 +82,7 @@ esac
 CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
 # Determine the Java command to use to start the JVM.
 if [ -n "$JAVA_HOME" ] ; then
    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
@@ -109,10 +126,11 @@ if $darwin; then
    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
 fi
-# For Cygwin, switch paths to Windows format before running java
+# For Cygwin or MSYS, switch paths to Windows format before running java
-if $cygwin ; then
+if [ "$cygwin" = "true" -o "$msys" = "true" ] ; then
    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
    JAVACMD=`cygpath --unix "$JAVACMD"`
    # We build the pattern for arguments to be converted via cygpath
@@ -138,35 +156,30 @@ if $cygwin ; then
        else
            eval `echo args$i`="\"$arg\""
        fi
-        i=$((i+1))
+        i=`expr $i + 1`
    done
    case $i in
-        (0) set -- ;;
+        0) set -- ;;
-        (1) set -- "$args0" ;;
+        1) set -- "$args0" ;;
-        (2) set -- "$args0" "$args1" ;;
+        2) set -- "$args0" "$args1" ;;
-        (3) set -- "$args0" "$args1" "$args2" ;;
+        3) set -- "$args0" "$args1" "$args2" ;;
-        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        4) set -- "$args0" "$args1" "$args2" "$args3" ;;
-        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
-        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
-        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
-        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
-        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+        9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
    esac
 fi
 # Escape application args
-save ( ) {
+save () {
    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
    echo " "
 }
-APP_ARGS=$(save "$@")
+APP_ARGS=`save "$@"`
 # Collect all arguments for the java command, following the shell quoting and substitution rules
 eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
 # by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
 if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
  cd "$(dirname "$0")"
 fi
 exec "$JAVACMD" "$@"
--- a/gradlew.bat
+++ b/gradlew.bat
@@ -1,3 +1,19 @@
@rem
@rem Copyright 2015 the original author or authors.
@rem
@rem Licensed under the Apache License, Version 2.0 (the "License");
@rem you may not use this file except in compliance with the License.
@rem You may obtain a copy of the License at
@rem
@rem      https://www.apache.org/licenses/LICENSE-2.0
@rem
@rem Unless required by applicable law or agreed to in writing, software
@rem distributed under the License is distributed on an "AS IS" BASIS,
@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@rem See the License for the specific language governing permissions and
@rem limitations under the License.
@rem
@if "%DEBUG%" == "" @echo off
@rem ##########################################################################
@rem
@@ -13,15 +29,18 @@ if "%DIRNAME%" == "" set DIRNAME=.
 set APP_BASE_NAME=%~n0
 set APP_HOME=%DIRNAME%
@rem Resolve any "." and ".." in APP_HOME to make it shorter.
 for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-set DEFAULT_JVM_OPTS=
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
@rem Find java.exe
 if defined JAVA_HOME goto findJavaFromJavaHome
 set JAVA_EXE=java.exe
 %JAVA_EXE% -version >NUL 2>&1
-if "%ERRORLEVEL%" == "0" goto init
+if "%ERRORLEVEL%" == "0" goto execute
 echo.
 echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
@@ -35,7 +54,7 @@ goto fail
 set JAVA_HOME=%JAVA_HOME:"=%
 set JAVA_EXE=%JAVA_HOME%/bin/java.exe
-if exist "%JAVA_EXE%" goto init
+if exist "%JAVA_EXE%" goto execute
 echo.
 echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
@@ -45,28 +64,14 @@ echo location of your Java installation.
 goto fail
 :init
@rem Get command-line arguments, handling Windows variants
 if not "%OS%" == "Windows_NT" goto win9xME_args
 :win9xME_args
@rem Slurp the command line arguments.
 set CMD_LINE_ARGS=
 set _SKIP=2
 :win9xME_args_slurp
 if "x%~1" == "x" goto execute
 set CMD_LINE_ARGS=%*
 :execute
@rem Setup the command line
 set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
@rem Execute Gradle
-"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
 :end
@rem End local scope for the variables with windows NT shell
--- a/scripts/bintray-publish.gradle
+++ b/scripts/bintray-publish.gradle
@@ -0,0 +1,77 @@
 // Start https://raw.githubusercontent.com/nuuneoi/JCenter/master/installv1.gradle
 group = publishedGroupId // Maven Group ID for the artifact
 install {
    repositories.mavenInstaller {
        pom {
            project {
                packaging 'aar'
                groupId publishedGroupId
                artifactId artifact
                name libraryName
                description libraryDescription
                url siteUrl
                licenses {
                    license {
                        name 'GNU General Public License version 3'
                        url 'https://opensource.org/licenses/gpl-3.0.html'
                    }
                }
                developers {
                    developer {
                        id 'fornwall'
                        name 'Fredrik Fornwall'
                        email 'fredrik@fornwall.net'
                    }
                }
                scm {
                    connection gitUrl
                    developerConnection gitUrl
                    url siteUrl
                }
            }
        }
    }
 }
 // End https://raw.githubusercontent.com/nuuneoi/JCenter/master/installv1.gradle
 // Start https://raw.githubusercontent.com/nuuneoi/JCenter/master/bintrayv1.gradle
 apply plugin: 'com.jfrog.bintray'
 version = libraryVersion
 task sourcesJar(type: Jar) {
 	classifier = 'sources'
 	from android.sourceSets.main.java.srcDirs
 }
 artifacts {
 	archives sourcesJar
 }
 bintray {
 	user = System.getenv('BINTRAY_USER')
 	key = System.getenv('BINTRAY_API_KEY')
 	configurations = ['archives']
 	pkg {
 		repo = 'maven'
 		name = bintrayName
 		userOrg = 'termux'
 		desc = libraryDescription
 		websiteUrl = siteUrl
 		vcsUrl = gitUrl
 		licenses = ['GPL-3.0']
 		publish = true
 		publicDownloadNumbers = true
 		version {
 			desc = libraryDescription
 			gpg {
 				sign = false //Determines whether to GPG sign the files. The default is false
 				// passphrase = properties.getProperty("bintray.gpg.password")
 			}
 		}
 	}
 }
--- a/settings.gradle
+++ b/settings.gradle
@@ -1 +1 @@
-include ':app'
+include ':app', ':terminal-emulator', ':terminal-view'
--- a/terminal-emulator/build.gradle
+++ b/terminal-emulator/build.gradle
@@ -0,0 +1,71 @@
 plugins {
    id "com.jfrog.bintray" version "1.8.5"
    id "com.github.dcendents.android-maven" version "2.1"
 }
 apply plugin: 'com.android.library'
 ext {
    bintrayName = 'terminal-emulator'
    publishedGroupId = 'com.termux'
    libraryName = 'TerminalEmulator'
    artifact = 'terminal-emulator'
    libraryDescription = 'The terminal emulator used in Termux'
    siteUrl = 'https://github.com/termux/termux-app'
    gitUrl = 'https://github.com/termux/termux-app.git'
    libraryVersion = '0.52'
 }
 android {
    compileSdkVersion project.properties.compileSdkVersion.toInteger()
    ndkVersion project.properties.ndkVersion
    defaultConfig {
        minSdkVersion project.properties.minSdkVersion.toInteger()
        targetSdkVersion project.properties.targetSdkVersion.toInteger()
        externalNativeBuild {
            ndkBuild {
                cFlags "-std=c11", "-Wall", "-Wextra", "-Werror", "-Os", "-fno-stack-protector", "-Wl,--gc-sections"
            }
        }
        ndk {
            abiFilters 'x86', 'x86_64', 'armeabi-v7a', 'arm64-v8a'
        }
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
    externalNativeBuild {
        ndkBuild {
            path "src/main/jni/Android.mk"
        }
    }
    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }
    testOptions {
        unitTests.returnDefaultValues = true
    }
 }
 tasks.withType(Test) {
    testLogging {
        events "started", "passed", "skipped", "failed"
    }
 }
 dependencies {
    testImplementation 'junit:junit:4.13.1'
 }
 apply from: '../scripts/bintray-publish.gradle'
--- a/terminal-emulator/proguard-rules.pro
+++ b/terminal-emulator/proguard-rules.pro
@@ -0,0 +1,25 @@
 # Add project specific ProGuard rules here.
 # By default, the flags in this file are appended to flags specified
 # in /Users/fornwall/lib/android-sdk/tools/proguard/proguard-android.txt
 # You can edit the include path and order by changing the proguardFiles
 # directive in build.gradle.
 #
 # 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 *;
 #}
 # Uncomment this to preserve the line number information for
 # debugging stack traces.
 #-keepattributes SourceFile,LineNumberTable
 # If you keep the line number information, uncomment this to
 # hide the original source file name.
 #-renamesourcefileattribute SourceFile
--- a/terminal-emulator/src/main/AndroidManifest.xml
+++ b/terminal-emulator/src/main/AndroidManifest.xml
@@ -0,0 +1,2 @@
 <manifest package="com.termux.terminal">
 </manifest>
--- a/terminal-emulator/src/main/java/com/termux/terminal/ByteQueue.java
+++ b/terminal-emulator/src/main/java/com/termux/terminal/ByteQueue.java
--- a/terminal-emulator/src/main/java/com/termux/terminal/EmulatorDebug.java
+++ b/terminal-emulator/src/main/java/com/termux/terminal/EmulatorDebug.java
--- a/terminal-emulator/src/main/java/com/termux/terminal/JNI.java
+++ b/terminal-emulator/src/main/java/com/termux/terminal/JNI.java
--- a/terminal-emulator/src/main/java/com/termux/terminal/KeyHandler.java
+++ b/terminal-emulator/src/main/java/com/termux/terminal/KeyHandler.java
--- a/Show More
+++ b/Show More
		`@@ -0,0 +1,2 @@`
							`patreon: termux`
							`custom: https://paypal.me/fornwall`
		`@@ -0,0 +1,3 @@`
							`Released under [the GPLv3 license](https://www.gnu.org/licenses/gpl.html).`

							Contains code from `Terminal Emulator for Android` by which is released under [the Apache License 2.0](https://www.apache.org/licenses/).
`@@ -1 +1 @@`
	`include ':app'`	`include ':app', ':terminal-emulator', ':terminal-view'`
		`@@ -0,0 +1,2 @@`
							`<manifest package="com.termux.terminal">`
							`</manifest>`