Match less files for file receiving (fixes #66)

Also remove some debug logging left by mistake.

.editorconfig

@@ -12,3 +12,5 @@ root = true
 end_of_line = lf
 insert_final_newline = true
 charset = utf-8
+indent_style = space
+indent_size = 4

.gitignore

@@ -5,6 +5,7 @@
 # Built application files
 build/
 *.apk
+*.so
 
 # Crashlytics configuations
 com_crashlytics_export_strings.xml
@@ -30,6 +31,7 @@ local.properties
 .idea/modules.xml
 .idea/scopes/scope_settings.xml
 .idea/vcs.xml
+.idea/dictionaries/
 *.iml
 
 # OS-specific files

.idea/codeStyleSettings.xml

@@ -63,9 +63,7 @@
           </extensions>
         </Objective-C-extensions>
         <XML>
-          <option name="XML_KEEP_LINE_BREAKS" value="false" />
-          <option name="XML_ALIGN_ATTRIBUTES" value="false" />
-          <option name="XML_SPACE_INSIDE_EMPTY_TAG" value="true" />
+          <option name="XML_LEGACY_SETTINGS_IMPORTED" value="true" />
         </XML>
         <codeStyleSettings language="XML">
           <option name="FORCE_REARRANGE_MODE" value="1" />
@@ -79,7 +77,7 @@
                   <match>
                     <AND>
                       <NAME>xmlns:android</NAME>
-                      <XML_NAMESPACE />
+                      <XML_NAMESPACE>Namespace:</XML_NAMESPACE>
                     </AND>
                   </match>
                 </rule>
@@ -89,7 +87,7 @@
                   <match>
                     <AND>
                       <NAME>xmlns:.*</NAME>
-                      <XML_NAMESPACE />
+                      <XML_NAMESPACE>Namespace:</XML_NAMESPACE>
                     </AND>
                   </match>
                   <order>BY_NAME</order>

.idea/gradle.xml

@@ -3,6 +3,7 @@
   <component name="GradleSettings">
     <option name="linkedExternalProjectsSettings">
       <GradleProjectSettings>
+        <option name="disableWrapperSourceDistributionNotification" value="true" />
         <option name="distributionType" value="DEFAULT_WRAPPED" />
         <option name="externalProjectPath" value="$PROJECT_DIR$" />
         <option name="gradleJvm" value="1.8" />

README.md

@@ -1,6 +1,7 @@
 Termux app
 ==========
 [![Travis build status](https://travis-ci.org/termux/termux-app.svg?branch=master)](https://travis-ci.org/termux/termux-app)
+[![Join the chat at https://gitter.im/termux/termux](https://badges.gitter.im/termux/termux.svg)](https://gitter.im/termux/termux)
 
 
 Termux is an Android terminal app and Linux environment.
@@ -19,7 +20,7 @@ Released under [the GPLv3 license](https://www.gnu.org/licenses/gpl.html). Conta
 
 Building JNI libraries
 ======================
-For ease of use, the JNI libraries are checked into version control. Execute the `build-jnilibs.sh` script to rebuild them.
+Execute the `build-jnilibs.sh` script to build the required JNI libraries.
 
 Terminal resources
 ==================

app/build.gradle

@@ -9,17 +9,17 @@ android {
     }
 
     sourceSets {
-	    main {
-		    jni.srcDirs = []
-	    }
+        main {
+            jni.srcDirs = []
+        }
     }
 
     defaultConfig {
         applicationId "com.termux"
         minSdkVersion 21
         targetSdkVersion 23
-        versionCode 21
-        versionName "0.21"
+        versionCode 32
+        versionName "0.32"
     }
 
     buildTypes {

app/src/main/AndroidManifest.xml

@@ -4,8 +4,8 @@
     android:sharedUserId="com.termux"
     android:sharedUserLabel="@string/shared_user_label" >
 
-	<uses-feature android:name="android.hardware.touchscreen" android:required="false" />
-	<uses-feature android:name="android.software.leanback" android:required="false" />
+    <uses-feature android:name="android.hardware.touchscreen" android:required="false" />
+    <uses-feature android:name="android.software.leanback" android:required="false" />
 
     <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
@@ -30,21 +30,43 @@
                 <action android:name="android.intent.action.MAIN" />
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
-		    <intent-filter>
-				<action android:name="android.intent.action.MAIN" />
-				<category android:name="android.intent.category.LEANBACK_LAUNCHER" />
-		    </intent-filter>
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LEANBACK_LAUNCHER" />
+            </intent-filter>
         </activity>
 
         <activity
             android:name="com.termux.app.TermuxHelpActivity"
             android:exported="false"
-            android:label="@string/application_help" />
+            android:theme="@android:style/Theme.Material.Light.DarkActionBar"
+            android:parentActivityName=".app.TermuxActivity"
+            android:label="@string/application_name" />
+
+        <activity
+            android:name="com.termux.filepicker.TermuxFileReceiverActivity"
+            android:label="@string/application_name"
+            android:taskAffinity="com.termux.filereceiver"
+            android:excludeFromRecents="true"
+            android:noHistory="true">
+            <intent-filter>
+                <action android:name="android.intent.action.VIEW" />
+                <action android:name="android.intent.action.SEND"/>
+                <category android:name="android.intent.category.DEFAULT" />
+                <data android:mimeType="application/*" />
+                <data android:mimeType="audio/*" />
+                <data android:mimeType="image/*" />
+                <data android:mimeType="message/*" />
+                <data android:mimeType="multipart/*" />
+                <data android:mimeType="text/*" />
+                <data android:mimeType="video/*" />
+            </intent-filter>
+        </activity>
 
         <activity
             android:name="com.termux.filepicker.TermuxFilePickerActivity"
             android:label="@string/application_name"
-            android:theme="@android:style/Theme.Material"
+            android:theme="@android:style/Theme.Material.Light.DarkActionBar"
             android:noHistory="true">
             <intent-filter>
                 <!--

app/src/main/assets/help.html

@@ -1,229 +0,0 @@
-<!DOCTYPE html>
-<html lang="en">
-  <head>
-    <meta charset="utf-8" />
-    <meta name="viewport" content="width=device-width, user-scalable=no" />
-    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
-    <title>Termux Help</title>
-
-    <style>
-	html { font-family: 'sans-serif-light', sans-serif; height: 100%; margin: auto; padding: 0; color: black; background-color: white; }
-	.page { max-width: 820px; margin: auto; padding: 0 1em; }
-	body { margin-left: auto; margin-right: auto; margin-top: 0; padding: 0; width: 100%; }
-	p { font-size: 16px; line-height: 1.3em; }
-	ul.index { padding-left: 0; }
-	.index li { list-style-type: none;  line-height: 1.8em; }
-	dt { margin-left: 1em; list-style-type: bullet; }
-	a, a:visited { color: #0000EE }
-    </style>
-  </head>
-  <body>
-    <div class="page help">
-      <h1 id="index">Termux Help</h1>
-
-      <ul class="index">
-      <li><a href="#introduction">Introduction</a></li>
-      <li><a href="#user_interface">User interface</a></li>
-      <li><a href="#touch_keyboard">Using a touch keyboard</a></li>
-      <li><a href="#hardware_keyboard">Using a hardware keyboard</a></li>
-      <li><a href="#package_management">Package management</a></li>
-      <li><a href="#text_editing">Text editing</a></li>
-      <li><a href="#using_ssh">Using SSH</a></li>
-      <li><a href="#interactive_shells">Interactive shells</a></li>
-      <li><a href="#termux_android">Termux and Android</a></li>
-      <li><a href="#add_on_api">Add-on: API</a></li>
-      <li><a href="#add_on_float">Add-on: Float</a></li>
-      <li><a href="#add_on_styling">Add-on: Styling</a></li>
-      <li><a href="#add_on_widget">Add-on: Widget</a></li>
-      <li><a href="#source_and_licenses">Source and licenses</a>
-      </ul>
-
-     <h2 id="introduction">Introduction</h2>
-     <p>Termux is a terminal emulator for Android combined with a collection of packages for command line software. This help
-     explains both the terminal interface and the packaging tool available from inside the terminal.</p>
-     <p>Want to ask a question, report a bug or have an idea for a new package or feature?
-     Visit the <a href="https://plus.google.com/communities/101692629528551299417">Google+ Termux Community</a>!</p>
-
-     <h2 id="user_interface">User interface</h2>
-     <p>At launch Termux shows a terminal interface, whose text size can be adjusted by pinch zooming or double tapping
-     and pulling the content towards or from you.</p>
-     <p>Besides the terminal (with keyboard shortcuts explained below) there are three additional interface elements available:
-     A <strong>context menu</strong>, <strong>navigation drawer</strong>
-     and <strong>notification</strong>.</p>
-     <p>The <strong>context menu</strong> can be shown by long pressing anywhere on the terminal. It provides menu entries for:</p>
-     <ul>
-     	<li>Selecting and pasting text.</li>
-     	<li>Sharing text from the terminal to other apps (e.g. email or SMS)</li>
-	<li>Resetting the terminal if it gets stuck.</li>
-	<li>Switching the terminal to full-screen.</li>
-     	<li>Hangup (exiting the current terminal session).</li>
-     	<li>Styling the terminal by selecting a font and a color scheme.</li>
-     	<li>Showing this help page.</li>
-     </ul>
-     <p>The <strong>navigation drawer</strong> is revealed by swiping from the left part of the screen. It has three
-     elements:</p>
-     <ul>
-	<li>A list of sessions. Clicking on a session shows it in the terminal while long pressing allows you to specify a session title.</li>
-     	<li>A button to toggle visibility of the touch keyboard.</li>
-	<li>A button to create new terminal sessions (long press for creating a named session or a fail-safe one).</li>
-     </ul>
-     <p>The <strong>notification</strong>, available when a terminal session is running, is available by pulling down the notification menu.
-     Pressing the notification leads to the most current terminal session. The notification may also be expanded
-     (by pinch-zooming or performing a single-finger glide) to expose three actions:</p>
-     <ul>
-     	<li>Exiting all running terminal sessions.</li>
-	<li>Use a wake lock to avoid entering sleep mode.</li>
-	<li>Use a high performance wifi lock to maximize wifi performance.</li>
-     </ul>
-     <p>With a wake or wifi lock held the notification and Termux background processes will be available even if no terminal
-     session is running, which allows server and other background processes to run more reliably.</p>
- 
-     <h2 id="touch_keyboard">Using a touch keyboard</h2>
-     <p>Using the Ctrl key is necessary for working with a terminal - but most touch keyboards
-     does not include one. For that purpose Termux uses the <em>Volume down</em> button to emulate
-     the Ctrl key. For example, pressing <em>Volume down+L</em> on a touch keyboard sends the same input as
-     pressing <em>Ctrl+L</em> on a hardware keyboard. The result of using Ctrl in combination
-     with a key depends on which program is used, but for many command line tools the following
-     shortcuts works:</p>
-     <ul>
-     	<li>Ctrl+A → Move cursor to the beginning of line.</li>
-     	<li>Ctrl+C → Abort (send SIGINT to) current process.</li>
-     	<li>Ctrl+D → Logout of a terminal session.</li>
-     	<li>Ctrl+E → Move cursor to the end of line.</li>
-     	<li>Ctrl+K → Delete from cursor to the end of line.</li>
-     	<li>Ctrl+L → Clear the terminal.</li>
-     	<li>Ctrl+Z → Suspend (send SIGTSTP to) current process.</li>
-     </ul>
-     <p>The <em>Volume up</em> key also serves as a special key to produce certain input:</p>
-     <ul>
-     	<li>Volume Up+L → | (the pipe character).</li>
-     	<li>Volume Up+E → Escape key.</li>
-     	<li>Volume Up+T → Tab key.</li>
-     	<li>Volume Up+1 → F1 (and Volume Up+2 → F2, etc).</li>
-     	<li>Volume Up+B → Alt+B, back a word when using readline.</li>
-     	<li>Volume Up+F → Alt+F, forward a word when using readline.</li>
-     	<li>Volume Up+W → Up arrow key.</li>
-     	<li>Volume Up+A → Left arrow key.</li>
-     	<li>Volume Up+S → Down arrow key.</li>
-     	<li>Volume Up+D → Right arrow key.</li>
-     </ul>
-
-     <h2 id="hardware_keyboard">Using a hardware keyboard</h2>
-     <p>The following shortcuts are available when using Termux with a hardware (e.g. bluetooth) keyboard by combining them with <em>Ctrl+Shift</em>:</p>
-     <ul>
-     	<li>'C' → Create new session</li>
-     	<li>'R' → Rename current session</li>
-     	<li>Down arrow (or 'N') → Next session</li>
-	<li>Up arrow (or 'P') → Previous session</li>
-	<li>Right arrow → Open drawer</li>
-	<li>Left arrow → Close drawer</li>
-	<li>'F' → Toggle full screen</li>
-	<li>'M' → Show menu</li>
-	<li>'V' → Paste</li>
-	<li>+/- → Adjust text size</li>
-	<li>1-9 → Go to numbered session</li>
-     </ul>
-
-     <h2 id="package_management">Package management</h2>
-     <p>A minimal base system consisting of the Apt package manager and the busybox collection of system utilities
-     is installed when first starting Termux. Additional packages are available using the apt command:</p>
-     <dl>
-       <dt>apt update</dt><dd>Updates the list of available packages. This commands needs to be run initially directly after installation
-       and regularly afterwards to receive updates.</dd>
-       <dt>apt search &lt;query&gt;</dt><dd>Search among available packages.</dd>
-       <dt>apt install &lt;package&gt;</dt><dd>Install a new package.</dd>
-       <dt>apt upgrade</dt><dd>Upgrade outdated packages. For Apt to know about newer packages you will need to update the package index, so you will normally want to run <em>apt update</em> before upgrading.</dd>
-       <dt>apt show &lt;package&gt;</dt><dd>Show information about a package.</dd>
-       <dt>apt list</dt><dd>List all available packages.</dd>
-       <dt>apt list --installed</dt><dd>List all installed packages.</dd>
-       <dt>apt remove &lt;package&gt;</dt><dd>Remove an installed package.</dd>
-     </dl>
-
-     <p>Apt as a package manager uses a package format named <em>dpkg</em>. Normally direct use of dpkg is not necessary, but the
-     following two commands may be of use:</p>
-     <dl>
-     	<dt>dpkg -L &lt;package&gt;</dt>
-	<dd>List installed files of a package.</dd>
-     	<dt>dpkg --verify</dt>
-	<dd>Verify the integrity of installed packages.</dd>
-     </dl>
-     <p>View the apt manual page (execute <em>apt install man</em> to install a man page viewer first) for more information.</p>
-
-     <h2 id="text_editing">Text editing</h2>
-     <p>By default the busybox version of <em>vi</em> is available. This is a barebone and somewhat unfriendly editor -
-     install <a href="http://www.nano-editor.org/dist/v2.2/nano.html">nano</a> for a more straight-forward editor and
-     <a href="http://vimdoc.sourceforge.net/htmldoc/usr_toc.html">vim</a> for a more powerful one.</p>
-
-     <h2 id="using_ssh">Using SSH</h2>
-     <p>By installing the <strong>openssh</strong> package (by executing <em>apt install openssh</em>) you may SSH into remote systems,
-     optionally putting private keys or configuration under $HOME/.ssh/.</p>
-     <p>If you wish to use an SSH agent to avoid entering passwords, the Termux openssh package provides
-     a wrapper script named <strong>ssha</strong> (note the 'a' at the end) for ssh which:</p>
-     <ol>
-     	<li>Starts the ssh agent if necessary (or connect to it if already running).</li>
-     	<li>Runs <strong>ssh-add</strong> if necessary.</li>
-	<li>Runs <strong>ssh</strong> with the provided arguments.</li>
-     </ol>
-     <p>This means that the agent will prompt for a key password at first run, but remember the authorization for subsequent ones.</p>
-
-     <h2 id="interactive_shells">Interactive shells</h2>
-     <p>The base system that is installed when first starting Termux uses the <em>bash</em> shell while zsh is available as
-     an installable alternative:</p>
-     <ul>
-       <li>bash - the default shell on most Linux distributions, with resources such as
-       <a href="http://www.tldp.org/LDP/Bash-Beginners-Guide/html/">Bash Guide for Beginners</a>,
-       the <a href="https://www.gnu.org/software/bash/manual/bash.html">Bash Reference Manual</a>
-       or the <a href="http://www.tldp.org/LDP/abs/html/">Advanced Bash-Scripting Guide</a> available.</li>
-       <li>zsh - a powerful shell with information available at
-       <a href="http://zsh.sourceforge.net/Guide/zshguide.html">A User's Guide to the Z-Shell</a>, the
-       <a href="http://zsh.sourceforge.net/Doc/Release/zsh_toc.html">Z Shell Manual</a> or
-       <a href="http://www.rayninfo.co.uk/tips/zshtips.html">ZSH Tips by ZZapper</a>.
-       After installing zsh through <em>apt install zsh</em>, execute <em>chsh -s zsh</em> to set it as the default login shell when starting Termux
-       (and change back with <em>chsh -s bash</em> if necessary).</li>
-     </ul>
-
-     <h2 id="termux_android">Termux and Android</h2>
-     <p>Termux is designed to cope with the restrictions of running as an ordinary Android app without requiring root, which
-     leads to several differences between Termux and a traditional desktop system. The file system layout is drastically different:</p>
-     <ul>
-       <li>Common folders such as /bin, /usr/, /var and /etc does not exist.</li>
-       <li>The Android system provides a basic non-standard file system hierarchy, where e.g. /system/bin contains some system binaries.</li>
-       <li>The user folder $HOME is inside the private file area exposed to Termux as an ordinary Android app.
-       Uninstalling Termux will cause this file area to be wiped - so save important files outside this area such as in /sdcard
-       or use a version control system such as <em>git</em>.</li>
-       <li>Termux installs its packages in a folder exposed through the $PREFIX environment variable (with e.g. binaries in $PREFIX/bin,
-       and configuration in $PREFIX/etc).</li>
-       <li>Shared libraries are installed in $PREFIX/lib, which are available from binaries due to Termux setting the $LD_LIBRARY_PATH
-       environment variable. These may clash with Android system binaries in /system/bin, which may force LD_LIBRARY_PATH to be
-       cleared before running system binaries.</li>
-     </ul>
-     <p>Besides the file system being different, Termux is running as a single-user system without root - each Android app is running as
-     its own Linux user, so running commands inside Termux may not interfere with other installed applications.</p>
-     <p>Running as non-root implies that ports below 1024 cannot be bound to. Many packages have been configured to have compatible
-     default values - the ftpd, httpd, and sshd servers default to 8021, 8080 and 8022, respectively.</p>
-
-     <h2 id="add_on_api">Add-on: API</h2>
-     <p>The API add-on exposes Android system functionality such as SMS messages, GPS location or the Text-to-speech functionality through command line tools.</p>
-     <ul><li><a href="http://play.google.com/store/apps/details?id=com.termux.api">See more and install from Google Play</a></li></ul>
-
-     <h2 id="add_on_float">Add-on: Float</h2>
-     <p>The Float add-on consists of a floating terminal window visible while running other apps.</p>
-     <ul><li><a href="http://play.google.com/store/apps/details?id=com.termux.window">See more and install from Google Play</a></li></ul>
-
-     <h2 id="add_on_styling">Add-on: Styling</h2>
-     <p>The Styling add-on provides color schemes and fonts to beabeautify and customize the appearance of the Termux terminal.</p>
-     <ul><li><a href="http://play.google.com/store/apps/details?id=com.termux.styling">See more and install from Google Play</a></li></ul>
-
-     <h2 id="add_on_widget">Add-on: Widget</h2>
-     <p>The Widget add-on brings a widget to your homescreen, providing links to run scripts in your $HOME/.shortcuts/ folder.</p>
-     <ul><li><a href="http://play.google.com/store/apps/details?id=com.termux.widget">See more and install from Google Play</a></li></ul>
-
-     <h2 id="source_and_licenses">Source and licenses</h2>
-     <p>Termux uses terminal emulation code from <a href="https://github.com/jackpal/Android-Terminal-Emulator">Terminal Emulator for Android</a>
-     which is under the <a href="https://raw.githubusercontent.com/jackpal/Android-Terminal-Emulator/master/NOTICE">Apache License, Version 2.0</a>.
-     Packages available through Termux are distributed under their respective licenses with scripts and patches used to build them
-     <a href="https://github.com/termux/termux-packages">available on github</a>.</p>
-
-    </div>
-  </body>
-</html>

app/src/main/java/com/termux/app/DialogUtils.java

@@ -3,21 +3,42 @@ package com.termux.app;
 import android.app.Activity;
 import android.app.AlertDialog;
 import android.content.DialogInterface;
+import android.text.Selection;
 import android.util.TypedValue;
+import android.view.KeyEvent;
 import android.view.ViewGroup.LayoutParams;
 import android.widget.EditText;
 import android.widget.LinearLayout;
+import android.widget.TextView;
 
-final class DialogUtils {
+public final class DialogUtils {
 
 	public interface TextSetListener {
 		void onTextSet(String text);
 	}
 
-	static void textInput(Activity activity, int titleText, int positiveButtonText, String initialText, final TextSetListener onPositive) {
+	public static void textInput(Activity activity, int titleText, String initialText,
+                                 int positiveButtonText, final TextSetListener onPositive,
+                                 int neutralButtonText, final TextSetListener onNeutral,
+                                 int negativeButtonText, final TextSetListener onNegative,
+                                 final DialogInterface.OnDismissListener onDismiss) {
 		final EditText input = new EditText(activity);
 		input.setSingleLine();
-		if (initialText != null) input.setText(initialText);
+		if (initialText != null) {
+			input.setText(initialText);
+			Selection.setSelection(input.getText(), initialText.length());
+		}
+
+		final AlertDialog[] dialogHolder = new AlertDialog[1];
+		input.setImeActionLabel(activity.getResources().getString(positiveButtonText), KeyEvent.KEYCODE_ENTER);
+		input.setOnEditorActionListener(new TextView.OnEditorActionListener() {
+			@Override
+			public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
+				onPositive.onTextSet(input.getText().toString());
+				dialogHolder[0].dismiss();
+				return true;
+			}
+		});
 
 		float dipInPixels = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 1, activity.getResources().getDisplayMetrics());
 		// https://www.google.com/design/spec/components/dialogs.html#dialogs-specs
@@ -27,17 +48,43 @@ final class DialogUtils {
 		LinearLayout layout = new LinearLayout(activity);
 		layout.setOrientation(LinearLayout.VERTICAL);
 		layout.setLayoutParams(new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT));
-		// layout.setGravity(Gravity.CLIP_VERTICAL);
 		layout.setPadding(paddingTopAndSides, paddingTopAndSides, paddingTopAndSides, paddingBottom);
 		layout.addView(input);
 
-		new AlertDialog.Builder(activity).setTitle(titleText).setView(layout).setPositiveButton(positiveButtonText, new DialogInterface.OnClickListener() {
-			@Override
-			public void onClick(DialogInterface d, int whichButton) {
-				onPositive.onTextSet(input.getText().toString());
-			}
-		}).setNegativeButton(android.R.string.cancel, null).show();
-		input.requestFocus();
+		AlertDialog.Builder builder = new AlertDialog.Builder(activity)
+				.setTitle(titleText).setView(layout)
+				.setPositiveButton(positiveButtonText, new DialogInterface.OnClickListener() {
+					@Override
+					public void onClick(DialogInterface d, int whichButton) {
+						onPositive.onTextSet(input.getText().toString());
+				}
+			});
+
+        if (onNeutral != null) {
+            builder.setNeutralButton(neutralButtonText, new DialogInterface.OnClickListener() {
+                @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() {
+                @Override
+                public void onClick(DialogInterface dialog, int which) {
+                    onNegative.onTextSet(input.getText().toString());
+                }
+            });
+        }
+
+        if (onDismiss != null) builder.setOnDismissListener(onDismiss);
+
+		dialogHolder[0] = builder.create();
+        dialogHolder[0].setCanceledOnTouchOutside(false);
+		dialogHolder[0].show();
 	}
 
 }

app/src/main/java/com/termux/app/TermuxActivity.java

@@ -1,19 +1,8 @@
 package com.termux.app;
 
-import java.util.Arrays;
-import java.util.Collections;
-import java.util.LinkedHashSet;
-import java.util.regex.Matcher;
-import java.util.regex.Pattern;
-
-import com.termux.R;
-import com.termux.drawer.DrawerLayout;
-import com.termux.terminal.TerminalSession;
-import com.termux.terminal.TerminalSession.SessionChangedCallback;
-import com.termux.view.TerminalKeyListener;
-import com.termux.view.TerminalView;
-
+import android.Manifest;
 import android.annotation.SuppressLint;
+import android.annotation.TargetApi;
 import android.app.Activity;
 import android.app.AlertDialog;
 import android.content.ActivityNotFoundException;
@@ -27,11 +16,15 @@ import android.content.DialogInterface.OnShowListener;
 import android.content.Intent;
 import android.content.IntentFilter;
 import android.content.ServiceConnection;
+import android.content.pm.PackageManager;
 import android.content.res.Resources;
 import android.graphics.Color;
 import android.graphics.Paint;
 import android.graphics.Typeface;
+import android.media.AudioAttributes;
+import android.media.SoundPool;
 import android.net.Uri;
+import android.os.Build;
 import android.os.Bundle;
 import android.os.IBinder;
 import android.os.Vibrator;
@@ -64,6 +57,19 @@ import android.widget.ListView;
 import android.widget.TextView;
 import android.widget.Toast;
 
+import com.termux.R;
+import com.termux.drawer.DrawerLayout;
+import com.termux.terminal.TerminalSession;
+import com.termux.terminal.TerminalSession.SessionChangedCallback;
+import com.termux.view.TerminalKeyListener;
+import com.termux.view.TerminalView;
+
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.LinkedHashSet;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
 /**
  * A terminal emulator activity.
  * 
@@ -76,7 +82,8 @@ import android.widget.Toast;
  */
 public final class TermuxActivity extends Activity implements ServiceConnection {
 
-	private static final int CONTEXTMENU_SELECT_ID = 0;
+	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;
@@ -86,10 +93,12 @@ public final class TermuxActivity extends Activity implements ServiceConnection
 
 	private static final int MAX_SESSIONS = 8;
 
+	private static final int REQUESTCODE_PERMISSION_STORAGE = 1234;
+
 	private static final String RELOAD_STYLE_ACTION = "com.termux.app.reload_style";
 
-	/** The main view of the activity showing the terminal. */
-	@NonNull TerminalView mTerminalView;
+	/** The main view of the activity showing the terminal. Initialized in onCreate(). */
+	@SuppressWarnings("NullableProblems") @NonNull TerminalView mTerminalView;
 
 	final FullScreenHelper mFullScreenHelper = new FullScreenHelper(this);
 
@@ -114,17 +123,42 @@ public final class TermuxActivity extends Activity implements ServiceConnection
 	 */
 	boolean mIsVisible;
 
+	private final SoundPool mBellSoundPool = new SoundPool.Builder().setMaxStreams(1).setAudioAttributes(
+			new AudioAttributes.Builder().setContentType(AudioAttributes.CONTENT_TYPE_SONIFICATION)
+			                             .setUsage(AudioAttributes.USAGE_ASSISTANCE_SONIFICATION).build()).build();
+	private int mBellSoundId;
+
 	private final BroadcastReceiver mBroadcastReceiever = new BroadcastReceiver() {
 		@Override
 		public void onReceive(Context context, Intent intent) {
 			if (mIsVisible) {
 				String whatToReload = intent.getStringExtra(RELOAD_STYLE_ACTION);
-				if (whatToReload == null || "colors".equals(whatToReload)) mTerminalView.checkForColors();
-				if (whatToReload == null || "font".equals(whatToReload)) mTerminalView.checkForTypeface();
+				if ("storage".equals(whatToReload)) {
+					if (ensureStoragePermissionGranted()) TermuxInstaller.setupStorageSymlinks(TermuxActivity.this);
+					return;
+				}
+				mTerminalView.checkForFontAndColors();
+				mSettings.reloadFromProperties(TermuxActivity.this);
 			}
 		}
 	};
 
+	/** 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(android.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;
+		}
+	}
+
 	@Override
 	public void onCreate(Bundle bundle) {
 		super.onCreate(bundle);
@@ -185,6 +219,9 @@ public final class TermuxActivity extends Activity implements ServiceConnection
 					getDrawer().closeDrawers();
 				} else if (unicodeChar == 'f'/* full screen */) {
 					toggleImmersive();
+				} else if (unicodeChar == 'k'/* keyboard */) {
+					InputMethodManager imm = (InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE);
+					imm.toggleSoftInput(InputMethodManager.SHOW_FORCED, 0);
 				} else if (unicodeChar == 'm'/* menu */) {
 					mTerminalView.showContextMenu();
 				} else if (unicodeChar == 'r'/* rename */) {
@@ -223,59 +260,54 @@ public final class TermuxActivity extends Activity implements ServiceConnection
 			}
 
 			@Override
-			public void onLongPress(MotionEvent event) {
-				mTerminalView.showContextMenu();
+			public void onSingleTapUp(MotionEvent e) {
+				InputMethodManager mgr = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
+				mgr.showSoftInput(mTerminalView, InputMethodManager.SHOW_IMPLICIT);
 			}
 
 			@Override
-			public void onSingleTapUp(MotionEvent e) {
-				// Toggle keyboard visibility if tapping with a finger:
-				InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
-				imm.toggleSoftInput(InputMethodManager.SHOW_IMPLICIT, 0);
+			public boolean shouldBackButtonBeMappedToEscape() {
+				return mSettings.mBackIsEscape;
+			}
+
+			@Override
+			public void copyModeChanged(boolean copyMode) {
+				// Disable drawer while copying.
+				getDrawer().setDrawerLockMode(copyMode ? DrawerLayout.LOCK_MODE_LOCKED_CLOSED : DrawerLayout.LOCK_MODE_UNLOCKED);
 			}
 
 		});
 
-		findViewById(R.id.new_session_button).setOnClickListener(new OnClickListener() {
+		View newSessionButton = findViewById(R.id.new_session_button);
+
+		newSessionButton.setOnClickListener(new OnClickListener() {
 			@Override
 			public void onClick(View v) {
 				addNewSession(false, null);
 			}
 		});
 
-		findViewById(R.id.new_session_button).setOnLongClickListener(new OnLongClickListener() {
-			@Override
-			public boolean onLongClick(View v) {
-				Resources res = getResources();
-				new AlertDialog.Builder(TermuxActivity.this).setTitle(R.string.new_session)
-						.setItems(new String[] { res.getString(R.string.new_session_normal_unnamed), res.getString(R.string.new_session_normal_named),
-								res.getString(R.string.new_session_failsafe) }, new DialogInterface.OnClickListener() {
-					@Override
-					public void onClick(DialogInterface dialog, int which) {
-						switch (which) {
-						case 0:
-							addNewSession(false, null);
-							break;
-						case 1:
-							DialogUtils.textInput(TermuxActivity.this, R.string.session_new_named_title, R.string.session_new_named_positive_button, null,
-									new DialogUtils.TextSetListener() {
-								@Override
-								public void onTextSet(String text) {
-									addNewSession(false, text);
-								}
-							});
-							break;
-						case 2:
-							addNewSession(true, null);
-							break;
-						}
-					}
-				}).show();
-				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(new OnClickListener() {
 			@Override
 			public void onClick(View v) {
 				InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
@@ -291,8 +323,9 @@ public final class TermuxActivity extends Activity implements ServiceConnection
 		startService(serviceIntent);
 		if (!bindService(serviceIntent, this, 0)) throw new RuntimeException("bindService() failed");
 
-		mTerminalView.checkForTypeface();
-		mTerminalView.checkForColors();
+		mTerminalView.checkForFontAndColors();
+
+		mBellSoundId = mBellSoundPool.load(this, R.raw.bell, 1);
 	}
 
 	/**
@@ -342,14 +375,24 @@ public final class TermuxActivity extends Activity implements ServiceConnection
 			@Override
 			public void onClipboardText(TerminalSession session, String text) {
 				if (!mIsVisible) return;
-				showToast("Clipboard set:\n\"" + text + "\"", true);
+				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)));
 			}
 
 			@Override
 			public void onBell(TerminalSession session) {
-				if (mIsVisible) ((Vibrator) getSystemService(VIBRATOR_SERVICE)).vibrate(50);
+				if (mIsVisible) {
+					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);
+							break;
+					}
+
+				}
 			}
 		};
 
@@ -418,6 +461,7 @@ public final class TermuxActivity extends Activity implements ServiceConnection
 				TermuxInstaller.setupIfNeeded(TermuxActivity.this, new Runnable() {
 					@Override
 					public void run() {
+						if (mTermService == null) return; // Activity might have been destroyed.
 						try {
 							if (TermuxPreferences.isShowWelcomeDialog(TermuxActivity.this)) {
 								new AlertDialog.Builder(TermuxActivity.this).setTitle(R.string.welcome_dialog_title).setMessage(R.string.welcome_dialog_body)
@@ -447,14 +491,13 @@ public final class TermuxActivity extends Activity implements ServiceConnection
 
 	@SuppressLint("InflateParams")
 	void renameSession(final TerminalSession sessionToRename) {
-		DialogUtils.textInput(this, R.string.session_rename_title, R.string.session_rename_positive_button, sessionToRename.mSessionName,
-				new DialogUtils.TextSetListener() {
-					@Override
-					public void onTextSet(String text) {
-						sessionToRename.mSessionName = text;
-					}
-				});
-	}
+        DialogUtils.textInput(this, R.string.session_rename_title, sessionToRename.mSessionName, R.string.session_rename_positive_button, new DialogUtils.TextSetListener() {
+            @Override
+            public void onTextSet(String text) {
+                sessionToRename.mSessionName = text;
+            }
+        }, -1, null, -1, null, null);
+    }
 
 	@Override
 	public void onServiceDisconnected(ComponentName name) {
@@ -480,6 +523,10 @@ public final class TermuxActivity extends Activity implements ServiceConnection
 		}
 
 		registerReceiver(mBroadcastReceiever, new IntentFilter(RELOAD_STYLE_ACTION));
+
+		// The current terminal session may have changed while being away, force
+		// a refresh of the displayed terminal:
+		mTerminalView.onScreenUpdated();
 	}
 
 	@Override
@@ -566,9 +613,8 @@ public final class TermuxActivity extends Activity implements ServiceConnection
 		TerminalSession currentSession = getCurrentTermSession();
 		if (currentSession == null) return;
 
-		ClipboardManager clipboard = (ClipboardManager) getSystemService(Context.CLIPBOARD_SERVICE);
-		menu.add(Menu.NONE, CONTEXTMENU_PASTE_ID, Menu.NONE, R.string.paste_text).setEnabled(clipboard.hasPrimaryClip());
-		menu.add(Menu.NONE, CONTEXTMENU_SELECT_ID, Menu.NONE, R.string.select);
+		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);
 		menu.add(Menu.NONE, CONTEXTMENU_RESET_TERMINAL_ID, Menu.NONE, R.string.reset_terminal);
 		menu.add(Menu.NONE, CONTEXTMENU_KILL_PROCESS_ID, Menu.NONE, R.string.kill_process).setEnabled(currentSession.isRunning());
 		menu.add(Menu.NONE, CONTEXTMENU_TOGGLE_FULLSCREEN_ID, Menu.NONE, R.string.toggle_fullscreen).setCheckable(true).setChecked(mSettings.isFullScreen());
@@ -644,84 +690,78 @@ public final class TermuxActivity extends Activity implements ServiceConnection
 
 	@Override
 	public boolean onContextItemSelected(MenuItem item) {
+		TerminalSession session = getCurrentTermSession();
+
 		switch (item.getItemId()) {
-		case CONTEXTMENU_SELECT_ID:
-			CharSequence[] items = new CharSequence[] { getString(R.string.select_text), getString(R.string.select_url),
-					getString(R.string.select_all_and_share) };
-			new AlertDialog.Builder(this).setItems(items, new DialogInterface.OnClickListener() {
-				@Override
-				public void onClick(DialogInterface dialog, int which) {
-					switch (which) {
-					case 0:
-						mTerminalView.toggleSelectingText();
-						break;
-					case 1:
-						showUrlSelection();
-						break;
-					case 2:
-						TerminalSession session = getCurrentTermSession();
-						if (session != null) {
-							Intent intent = new Intent(Intent.ACTION_SEND);
-							intent.setType("text/plain");
-							intent.putExtra(Intent.EXTRA_TEXT, session.getEmulator().getScreen().getTranscriptText().trim());
-							intent.putExtra(Intent.EXTRA_SUBJECT, getString(R.string.share_transcript_title));
-							startActivity(Intent.createChooser(intent, getString(R.string.share_transcript_chooser_title)));
-						}
-						break;
+			case CONTEXTMENU_SELECT_URL_ID:
+				showUrlSelection();
+				return true;
+			case CONTEXTMENU_SHARE_TRANSCRIPT_ID:
+				if (session != null) {
+					Intent intent = new Intent(Intent.ACTION_SEND);
+					intent.setType("text/plain");
+					intent.putExtra(Intent.EXTRA_TEXT, session.getEmulator().getScreen().getTranscriptText().trim());
+					intent.putExtra(Intent.EXTRA_SUBJECT, getString(R.string.share_transcript_title));
+					startActivity(Intent.createChooser(intent, getString(R.string.share_transcript_chooser_title)));
+				}
+				return true;
+			case CONTEXTMENU_PASTE_ID:
+				doPaste();
+				return true;
+			case CONTEXTMENU_KILL_PROCESS_ID:
+				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() {
+					@Override
+					public void onClick(DialogInterface dialog, int id) {
+						dialog.dismiss();
+						getCurrentTermSession().finishIfRunning();
 					}
-					dialog.dismiss();
+				});
+				b.setNegativeButton(android.R.string.no, null);
+				b.show();
+				return true;
+			case CONTEXTMENU_RESET_TERMINAL_ID: {
+				if (session != null) {
+					session.reset();
+					showToast(getResources().getString(R.string.reset_toast_notification), true);
 				}
-			}).show();
-			return true;
-		case CONTEXTMENU_PASTE_ID:
-			doPaste();
-			return true;
-		case CONTEXTMENU_KILL_PROCESS_ID:
-			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() {
-				@Override
-				public void onClick(DialogInterface dialog, int id) {
-					dialog.dismiss();
-					getCurrentTermSession().finishIfRunning();
-				}
-			});
-			b.setNegativeButton(android.R.string.no, null);
-			b.show();
-			return true;
-		case CONTEXTMENU_RESET_TERMINAL_ID: {
-			TerminalSession session = getCurrentTermSession();
-			if (session != null) {
-				session.reset();
-				showToast(getResources().getString(R.string.reset_toast_notification), true);
+				return true;
 			}
+            case CONTEXTMENU_STYLING_ID: {
+                Intent stylingIntent = new Intent();
+                stylingIntent.setClassName("com.termux.styling", "com.termux.styling.TermuxStyleActivity");
+                try {
+                    startActivity(stylingIntent);
+                } catch (ActivityNotFoundException | IllegalArgumentException e) {
+                    // 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 android.content.DialogInterface.OnClickListener() {
+                            @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;
+			default:
+				return super.onContextItemSelected(item);
 		}
-		case CONTEXTMENU_STYLING_ID: {
-			Intent stylingIntent = new Intent();
-			stylingIntent.setClassName("com.termux.styling", "com.termux.styling.TermuxStyleActivity");
-			try {
-				startActivity(stylingIntent);
-			} catch (ActivityNotFoundException e) {
-				new AlertDialog.Builder(this).setMessage(R.string.styling_not_installed)
-						.setPositiveButton(R.string.styling_install, new android.content.DialogInterface.OnClickListener() {
-							@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;
-		default:
-			return super.onContextItemSelected(item);
+	}
+
+	@Override
+	public void onRequestPermissionsResult(int requestCode,  @NonNull String permissions[], @NonNull int[] grantResults) {
+		if (requestCode == REQUESTCODE_PERMISSION_STORAGE && grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
+			TermuxInstaller.setupStorageSymlinks(this);
 		}
 	}
 

app/src/main/java/com/termux/app/TermuxHelpActivity.java

@@ -5,10 +5,14 @@ import android.content.ActivityNotFoundException;
 import android.content.Intent;
 import android.net.Uri;
 import android.os.Bundle;
+import android.view.ViewGroup;
+import android.webkit.WebSettings;
 import android.webkit.WebView;
 import android.webkit.WebViewClient;
+import android.widget.ProgressBar;
+import android.widget.RelativeLayout;
 
-/** Basic embedded browser for viewing the bundled help page. */
+/** Basic embedded browser for viewing help pages. */
 public final class TermuxHelpActivity extends Activity {
 
 	private WebView mWebView;
@@ -16,22 +20,47 @@ public final class TermuxHelpActivity extends Activity {
 	@Override
 	protected void onCreate(Bundle savedInstanceState) {
 		super.onCreate(savedInstanceState);
+
+		final RelativeLayout progressLayout = new RelativeLayout(this);
+		RelativeLayout.LayoutParams lParams = new RelativeLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
+		lParams.addRule(RelativeLayout.CENTER_IN_PARENT);
+		ProgressBar progressBar = new ProgressBar(this);
+		progressBar.setIndeterminate(true);
+		progressBar.setLayoutParams(lParams);
+		progressLayout.addView(progressBar);
+
 		mWebView = new WebView(this);
-		setContentView(mWebView);
+		WebSettings settings = mWebView.getSettings();
+		settings.setCacheMode(WebSettings.LOAD_NO_CACHE);
+		settings.setAppCacheEnabled(false);
+		setContentView(progressLayout);
+		mWebView.clearCache(true);
+
 		mWebView.setWebViewClient(new WebViewClient() {
 			@Override
 			public boolean shouldOverrideUrlLoading(WebView view, String url) {
+				if (url.startsWith("https://termux.com")) {
+					// Inline help.
+					setContentView(progressLayout);
+					return false;
+				}
+
 				try {
 					startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(url)).addFlags(Intent.FLAG_ACTIVITY_NEW_TASK));
 				} catch (ActivityNotFoundException e) {
-					// TODO: Android TV does not have a system browser - but needs better method of getting back
-					// than navigating deep here.
+					// Android TV does not have a system browser.
+					setContentView(progressLayout);
 					return false;
 				}
 				return true;
 			}
+
+			@Override
+			public void onPageFinished(WebView view, String url) {
+				setContentView(mWebView);
+			}
 		});
-		mWebView.loadUrl("file:///android_asset/help.html");
+		mWebView.loadUrl("https://termux.com/help.html");
 	}
 
 	@Override

app/src/main/java/com/termux/app/TermuxInstaller.java

@@ -1,5 +1,21 @@
 package com.termux.app;
 
+import android.app.Activity;
+import android.app.AlertDialog;
+import android.app.ProgressDialog;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.content.DialogInterface.OnClickListener;
+import android.content.DialogInterface.OnDismissListener;
+import android.os.Environment;
+import android.system.Os;
+import android.util.Log;
+import android.util.Pair;
+import android.view.WindowManager;
+
+import com.termux.R;
+import com.termux.terminal.EmulatorDebug;
+
 import java.io.BufferedReader;
 import java.io.File;
 import java.io.FileOutputStream;
@@ -11,21 +27,6 @@ import java.util.List;
 import java.util.zip.ZipEntry;
 import java.util.zip.ZipInputStream;
 
-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.system.Os;
-import android.util.Log;
-import android.util.Pair;
-import android.view.WindowManager;
-
-import com.termux.R;
-import com.termux.terminal.EmulatorDebug;
-
 /**
  * Install the Termux bootstrap packages if necessary by following the below steps:
  * 
@@ -175,17 +176,19 @@ final class TermuxInstaller {
 		}.start();
 	}
 
-	/** Get bootstrap zip url for this systems cpu architecture. */
-	static URL determineZipUrl() throws MalformedURLException {
-		String arch = System.getProperty("os.arch");
-		if (arch.startsWith("arm") || arch.equals("aarch64")) {
-			// Handle different arm variants such as armv7l:
-			arch = "arm";
-		} else if (arch.equals("x86_64")) {
-			arch = "i686";
-		}
-		return new URL("http://apt.termux.com/bootstrap/bootstrap-" + arch + ".zip");
-	}
+    /** Get bootstrap zip url for this systems cpu architecture. */
+    static URL determineZipUrl() throws MalformedURLException {
+        String arch = System.getProperty("os.arch");
+        if (arch.startsWith("armv8")) {
+            arch = "aarch64";
+        } else if (arch.startsWith("arm")) {
+            // Handle different arm variants such as armv7l:
+            arch = "arm";
+        } else if (arch.startsWith("x86")) { // "x86" on arcwelder, "x86_64" on 64-bit android.
+            arch = "i686";
+        }
+        return new URL("https://termux.net/bootstrap/bootstrap-" + arch + ".zip");
+    }
 
 	/** Delete a folder and all its content or throw. */
 	static void deleteFolder(File fileOrDirectory) {
@@ -200,4 +203,51 @@ final class TermuxInstaller {
 		}
 	}
 
+	public static void setupStorageSymlinks(final Context context) {
+		final String LOG_TAG = "termux-storage";
+		new Thread() {
+			public void run() {
+				try {
+					File storageDir = new File(TermuxService.HOME_PATH, "storage");
+
+					if (storageDir.exists() && !storageDir.delete()) {
+						Log.e(LOG_TAG, "Could not delete old $HOME/storage");
+						return;
+					}
+
+					if (!storageDir.mkdirs()) {
+						Log.e(LOG_TAG, "Unable to mkdirs() for $HOME/storage");
+						return;
+					}
+
+					File sharedDir = Environment.getExternalStorageDirectory();
+					Os.symlink(sharedDir.getAbsolutePath(), new File(storageDir, "shared").getAbsolutePath());
+
+					File downloadsDir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS);
+					Os.symlink(downloadsDir.getAbsolutePath(), new File(storageDir, "downloads").getAbsolutePath());
+
+					File dcimDir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DCIM);
+					Os.symlink(dcimDir.getAbsolutePath(), new File(storageDir, "dcim").getAbsolutePath());
+
+					File picturesDir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES);
+					Os.symlink(picturesDir.getAbsolutePath(), new File(storageDir, "pictures").getAbsolutePath());
+
+					File musicDir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_MUSIC);
+					Os.symlink(musicDir.getAbsolutePath(), new File(storageDir, "music").getAbsolutePath());
+
+					File moviesDir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_MOVIES);
+					Os.symlink(moviesDir.getAbsolutePath(), new File(storageDir, "movies").getAbsolutePath());
+
+					final File[] dirs = context.getExternalFilesDirs(null);
+					if (dirs != null && dirs.length >= 2) {
+						final File externalDir = dirs[1];
+						Os.symlink(externalDir.getAbsolutePath(), new File(storageDir, "external").getAbsolutePath());
+					}
+				} catch (Exception e) {
+					Log.e(LOG_TAG, "Error setting up link", e);
+				}
+			}
+		}.start();
+	}
+
 }

app/src/main/java/com/termux/app/TermuxPreferences.java

@@ -1,16 +1,34 @@
 package com.termux.app;
 
-import com.termux.terminal.TerminalSession;
-
 import android.content.Context;
 import android.content.SharedPreferences;
 import android.preference.PreferenceManager;
+import android.support.annotation.IntDef;
+import android.util.Log;
 import android.util.TypedValue;
+import android.widget.Toast;
+
+import com.termux.terminal.TerminalSession;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.util.Properties;
 
 final class TermuxPreferences {
 
+	@IntDef({BELL_VIBRATE, BELL_BEEP, BELL_IGNORE})
+	@Retention(RetentionPolicy.SOURCE)
+	public @interface AsciiBellBehaviour {}
+
+	static final int BELL_VIBRATE = 1;
+	static final int BELL_BEEP = 2;
+	static final int BELL_IGNORE = 3;
+
 	private final int MIN_FONTSIZE;
 	private static final int MAX_FONTSIZE = 256;
+
 	private static final String FULLSCREEN_KEY = "fullscreen";
 	private static final String FONTSIZE_KEY = "fontsize";
 	private static final String CURRENT_SESSION_KEY = "current_session";
@@ -19,7 +37,13 @@ final class TermuxPreferences {
 	private boolean mFullScreen;
 	private int mFontSize;
 
+	@AsciiBellBehaviour
+	int mBellBehaviour = BELL_VIBRATE;
+
+	boolean mBackIsEscape = true;
+
 	TermuxPreferences(Context context) {
+		reloadFromProperties(context);
 		SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
 
 		float dipInPixels = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 1, context.getResources().getDisplayMetrics());
@@ -86,4 +110,33 @@ final class TermuxPreferences {
 		PreferenceManager.getDefaultSharedPreferences(context).edit().putBoolean(SHOW_WELCOME_DIALOG_KEY, false).apply();
 	}
 
+	public void reloadFromProperties(Context context) {
+		try {
+			File propsFile = new File(TermuxService.HOME_PATH + "/.config/termux/termux.properties");
+			Properties props = new Properties();
+			if (propsFile.isFile() && propsFile.canRead()) {
+				try (FileInputStream in = new FileInputStream(propsFile)) {
+					props.load(in);
+				}
+			}
+
+			switch (props.getProperty("bell-character", "vibrate")) {
+				case "beep":
+					mBellBehaviour = BELL_BEEP;
+					break;
+				case "ignore":
+					mBellBehaviour = BELL_IGNORE;
+					break;
+				default: // "vibrate".
+					mBellBehaviour = BELL_VIBRATE;
+					break;
+			}
+
+			mBackIsEscape = "escape".equals(props.getProperty("back-key", "back"));
+		} catch (Exception e) {
+			Toast.makeText(context, "Error loading properties: " + e.getMessage(), Toast.LENGTH_LONG).show();
+			Log.e("termux", "Error loading props", e);
+		}
+	}
+
 }

app/src/main/java/com/termux/app/TermuxService.java

@@ -55,7 +55,11 @@ public final class TermuxService extends Service implements SessionChangedCallba
 	/** Intent action to toggle the wifi lock, {@link #mWifiLock}, which this service may hold. */
 	private static final String ACTION_LOCK_WIFI = "com.termux.service_toggle_wifi_lock";
 	/** Intent action to launch a new terminal session. Executed from TermuxWidgetProvider. */
-	private static final String ACTION_EXECUTE = "com.termux.service_execute";
+	public static final String ACTION_EXECUTE = "com.termux.service_execute";
+
+    public static final String EXTRA_ARGUMENTS = "com.termux.execute.arguments";
+
+    public static final String EXTRA_CURRENT_WORKING_DIRECTORY = "com.termux.execute.cwd";
 
 	/** This service is only bound from inside the same process and never uses IPC. */
 	class LocalBinder extends Binder {
@@ -113,8 +117,8 @@ public final class TermuxService extends Service implements SessionChangedCallba
 		} else if (ACTION_EXECUTE.equals(action)) {
 			Uri executableUri = intent.getData();
 			String executablePath = (executableUri == null ? null : executableUri.getPath());
-			String[] arguments = (executableUri == null ? null : intent.getStringArrayExtra("com.termux.execute.arguments"));
-			String cwd = intent.getStringExtra("com.termux.execute.cwd");
+			String[] arguments = (executableUri == null ? null : intent.getStringArrayExtra(EXTRA_ARGUMENTS));
+			String cwd = intent.getStringExtra(EXTRA_CURRENT_WORKING_DIRECTORY);
 			TerminalSession newSession = createTermSession(executablePath, arguments, cwd, false);
 
 			// Transform executable path to session name, e.g. "/bin/do-something.sh" => "do something.sh".
@@ -237,17 +241,22 @@ public final class TermuxService extends Service implements SessionChangedCallba
 		final String prefixEnv = "PREFIX=" + PREFIX_PATH;
 		final String androidRootEnv = "ANDROID_ROOT=" + System.getenv("ANDROID_ROOT");
 		final String androidDataEnv = "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");
 		String[] env;
 		if (failSafe) {
-			env = new String[] { termEnv, homeEnv, prefixEnv, androidRootEnv, androidDataEnv };
+            // Keep the default path so that system binaries can be used in the failsafe session.
+            final String pathEnv = "PATH=" + System.getenv("PATH");
+            env = new String[] { termEnv, homeEnv, prefixEnv, androidRootEnv, androidDataEnv, pathEnv, externalStorageEnv };
 		} else {
 			final String ps1Env = "PS1=$ ";
 			final String ldEnv = "LD_LIBRARY_PATH=" + PREFIX_PATH + "/lib";
 			final String langEnv = "LANG=en_US.UTF-8";
-			final String pathEnv = "PATH=" + PREFIX_PATH + "/bin:" + PREFIX_PATH + "/bin/applets:" + System.getenv("PATH");
+			final String pathEnv = "PATH=" + PREFIX_PATH + "/bin:" + PREFIX_PATH + "/bin/applets";
 			final String pwdEnv = "PWD=" + cwd;
 
-			env = new String[] { termEnv, homeEnv, prefixEnv, ps1Env, ldEnv, langEnv, pathEnv, pwdEnv, androidRootEnv, androidDataEnv };
+			env = new String[] { termEnv, homeEnv, prefixEnv, ps1Env, ldEnv, langEnv, pathEnv, pwdEnv, androidRootEnv, androidDataEnv, externalStorageEnv };
 		}
 
 		String shellName;

app/src/main/java/com/termux/drawer/DrawerLayout.java

@@ -16,8 +16,6 @@ package com.termux.drawer;
  * limitations under the License.
  */
 
-import java.util.List;
-
 import android.annotation.SuppressLint;
 import android.content.Context;
 import android.content.res.TypedArray;
@@ -27,8 +25,6 @@ import android.graphics.PixelFormat;
 import android.graphics.drawable.ColorDrawable;
 import android.graphics.drawable.Drawable;
 import android.os.Build;
-import android.os.Parcel;
-import android.os.Parcelable;
 import android.os.SystemClock;
 import android.util.AttributeSet;
 import android.view.Gravity;
@@ -39,6 +35,8 @@ import android.view.ViewGroup;
 import android.view.accessibility.AccessibilityEvent;
 import android.view.accessibility.AccessibilityNodeInfo;
 
+import java.util.List;
+
 /**
  * DrawerLayout acts as a top-level container for window content that allows for interactive "drawer" views to be pulled
  * out from the edge of the window.
@@ -138,11 +136,11 @@ public class DrawerLayout extends ViewGroup {
 
 	private final ChildAccessibilityDelegate mChildAccessibilityDelegate = new ChildAccessibilityDelegate();
 
-	private int mMinDrawerMargin;
+	private final int mMinDrawerMargin;
 
 	private int mScrimColor = DEFAULT_SCRIM_COLOR;
 	private float mScrimOpacity;
-	private Paint mScrimPaint = new Paint();
+	private final Paint mScrimPaint = new Paint();
 
 	private final ViewDragHelper mLeftDragger;
 	private final ViewDragHelper mRightDragger;
@@ -1422,38 +1420,6 @@ public class DrawerLayout extends ViewGroup {
 		return super.onKeyUp(keyCode, event);
 	}
 
-	@Override
-	protected void onRestoreInstanceState(Parcelable state) {
-		final SavedState ss = (SavedState) state;
-		super.onRestoreInstanceState(ss.getSuperState());
-
-		if (ss.openDrawerGravity != Gravity.NO_GRAVITY) {
-			final View toOpen = findDrawerWithGravity(ss.openDrawerGravity);
-			if (toOpen != null) {
-				openDrawer(toOpen);
-			}
-		}
-
-		setDrawerLockMode(ss.lockModeLeft, Gravity.LEFT);
-		setDrawerLockMode(ss.lockModeRight, Gravity.RIGHT);
-	}
-
-	@Override
-	protected Parcelable onSaveInstanceState() {
-		final Parcelable superState = super.onSaveInstanceState();
-		final SavedState ss = new SavedState(superState);
-
-		final View openDrawer = findOpenDrawer();
-		if (openDrawer != null) {
-			ss.openDrawerGravity = ((LayoutParams) openDrawer.getLayoutParams()).gravity;
-		}
-
-		ss.lockModeLeft = mLockModeLeft;
-		ss.lockModeRight = mLockModeRight;
-
-		return ss;
-	}
-
 	@Override
 	public void addView(View child, int index, ViewGroup.LayoutParams params) {
 		super.addView(child, index, params);
@@ -1486,30 +1452,6 @@ public class DrawerLayout extends ViewGroup {
 				&& child.getImportantForAccessibility() != View.IMPORTANT_FOR_ACCESSIBILITY_NO;
 	}
 
-	/**
-	 * State persisted across instances
-	 */
-	protected static class SavedState extends BaseSavedState {
-		int openDrawerGravity = Gravity.NO_GRAVITY;
-		int lockModeLeft = LOCK_MODE_UNLOCKED;
-		int lockModeRight = LOCK_MODE_UNLOCKED;
-
-		public SavedState(Parcel in) {
-			super(in);
-			openDrawerGravity = in.readInt();
-		}
-
-		public SavedState(Parcelable superState) {
-			super(superState);
-		}
-
-		@Override
-		public void writeToParcel(Parcel dest, int flags) {
-			super.writeToParcel(dest, flags);
-			dest.writeInt(openDrawerGravity);
-		}
-	}
-
 	private class ViewDragCallback extends ViewDragHelper.Callback {
 		private final int mAbsGravity;
 		private ViewDragHelper mDragger;

app/src/main/java/com/termux/drawer/ViewDragHelper.java

@@ -57,7 +57,7 @@ public class ViewDragHelper {
 	/**
 	 * Edge flag indicating that the left edge should be affected.
 	 */
-	public static final int EDGE_LEFT = 1 << 0;
+	public static final int EDGE_LEFT = 1 /*1 << 0*/;
 
 	/**
 	 * Edge flag indicating that the right edge should be affected.
@@ -82,7 +82,7 @@ public class ViewDragHelper {
 	/**
 	 * Indicates that a check should occur along the horizontal axis
 	 */
-	public static final int DIRECTION_HORIZONTAL = 1 << 0;
+	public static final int DIRECTION_HORIZONTAL = 1 /*1 << 0*/;
 
 	/**
 	 * Indicates that a check should occur along the vertical axis

app/src/main/java/com/termux/filepicker/TermuxFilePickerProvider.java

@@ -7,6 +7,7 @@ import android.database.Cursor;
 import android.net.Uri;
 import android.os.ParcelFileDescriptor;
 import android.support.annotation.NonNull;
+import android.webkit.MimeTypeMap;
 
 import java.io.File;
 import java.io.FileNotFoundException;
@@ -15,7 +16,7 @@ import java.io.FileNotFoundException;
 public class TermuxFilePickerProvider extends ContentProvider {
     @Override
     public boolean onCreate() {
-        return false;
+        return true;
     }
 
     @Override
@@ -25,7 +26,20 @@ public class TermuxFilePickerProvider extends ContentProvider {
 
     @Override
     public String getType(@NonNull Uri uri) {
-        return null;
+		String contentType = null;
+		String path = uri.getPath();
+		int lastDotIndex = path.lastIndexOf('.');
+		String possibleFileExtension = path.substring(lastDotIndex + 1, path.length());
+		if (possibleFileExtension.contains("/")) {
+			// The dot was in the path, so not a file extension.
+		} else {
+			MimeTypeMap mimeTypes = MimeTypeMap.getSingleton();
+			// Lower casing makes it work with e.g. "JPG":
+			contentType = mimeTypes.getMimeTypeFromExtension(possibleFileExtension.toLowerCase());
+		}
+
+		if (contentType == null) contentType = "application/octet-stream";
+		return contentType;
     }
 
     @Override

app/src/main/java/com/termux/filepicker/TermuxFileReceiverActivity.java

@@ -0,0 +1,215 @@
+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;
+import android.provider.OpenableColumns;
+import android.util.Log;
+import android.util.Patterns;
+
+import com.termux.R;
+import com.termux.app.DialogUtils;
+import com.termux.app.TermuxService;
+
+import java.io.ByteArrayInputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.charset.StandardCharsets;
+
+public class TermuxFileReceiverActivity extends Activity {
+
+    static final String TERMUX_RECEIVEDIR = TermuxService.FILES_PATH + "/home/downloads";
+    static final String EDITOR_PROGRAM = TermuxService.HOME_PATH + "/bin/termux-file-editor";
+    static final String URL_OPENER_PROGRAM = TermuxService.HOME_PATH + "/bin/termux-url-opener";
+
+    /**
+     * If the activity should be finished when the name input dialog is dismissed. This is disabled
+     * before showing an error dialog, since the act of showing the error dialog will cause the
+     * name input dialog to be implicitly dismissed, and we do not want to finish the activity directly
+     * when showing the error dialog.
+     */
+    private boolean mFinishOnDismissNameDialog = true;
+
+    @Override
+    protected void onResume() {
+        super.onResume();
+
+        final Intent intent = getIntent();
+        final String action = intent.getAction();
+        final String type = intent.getType();
+        final String scheme = intent.getScheme();
+
+        if (Intent.ACTION_SEND.equals(action) && type != null) {
+            final String sharedText = intent.getStringExtra(Intent.EXTRA_TEXT);
+            final Uri sharedUri = intent.getParcelableExtra(Intent.EXTRA_STREAM);
+
+            if (sharedText != null) {
+                if (Patterns.WEB_URL.matcher(sharedText).matches()) {
+                    handleUrlAndFinish(sharedText);
+                } else {
+                    String subject = intent.getStringExtra(Intent.EXTRA_SUBJECT);
+                    if (subject == null) subject = intent.getStringExtra(Intent.EXTRA_TITLE);
+                    if (subject != null) subject += ".txt";
+                    promptNameAndSave(new ByteArrayInputStream(sharedText.getBytes(StandardCharsets.UTF_8)), subject);
+                }
+            } else if (sharedUri != null) {
+                handleContentUri(sharedUri, intent.getStringExtra(Intent.EXTRA_TITLE));
+            } else {
+                showErrorDialogAndQuit("Send action without content - nothing to save.");
+            }
+        } else if ("content".equals(scheme)) {
+            handleContentUri(intent.getData(), intent.getStringExtra(Intent.EXTRA_TITLE));
+        } else if ("file".equals(scheme)) {
+            // When e.g. clicking on a downloaded apk:
+            String path = intent.getData().getPath();
+            File file = new File(path);
+            try {
+                FileInputStream in = new FileInputStream(file);
+                promptNameAndSave(in, file.getName());
+            } catch (FileNotFoundException e) {
+                showErrorDialogAndQuit("Cannot open file: " + e.getMessage() + ".");
+            }
+        } else {
+            showErrorDialogAndQuit("Unable to receive any file or URL.");
+        }
+    }
+
+    void showErrorDialogAndQuit(String message) {
+        mFinishOnDismissNameDialog = false;
+        new AlertDialog.Builder(this).setMessage(message).setOnDismissListener(new DialogInterface.OnDismissListener() {
+            @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) {
+        try {
+            String attachmentFileName = null;
+
+            String[] projection = new String[]{OpenableColumns.DISPLAY_NAME};
+            try (Cursor c = getContentResolver().query(uri, projection, null, null, null)) {
+                if (c != null && c.moveToFirst()) {
+                    final int fileNameColumnId = c.getColumnIndex(OpenableColumns.DISPLAY_NAME);
+                    if (fileNameColumnId >= 0) attachmentFileName = c.getString(fileNameColumnId);
+                }
+            }
+
+            if (attachmentFileName == null) attachmentFileName = subjectFromIntent;
+
+            InputStream in = getContentResolver().openInputStream(uri);
+            promptNameAndSave(in, attachmentFileName);
+        } catch (Exception e) {
+            showErrorDialogAndQuit("Unable to handle shared content:\n\n" + e.getMessage());
+            Log.e("termux", "handleContentUri(uri=" + uri + ") failed", e);
+        }
+    }
+
+    void promptNameAndSave(final InputStream in, final String attachmentFileName) {
+        DialogUtils.textInput(this, R.string.file_received_title, attachmentFileName
+            , android.R.string.ok, new DialogUtils.TextSetListener() {
+            @Override
+            public void onTextSet(final String text) {
+                if (saveStreamWithName(in, text) == null) return;
+                finish();
+            }
+        }, R.string.file_received_open_folder_button, new DialogUtils.TextSetListener() {
+            @Override
+            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();
+            }
+        }, R.string.file_received_edit_button, new DialogUtils.TextSetListener() {
+            @Override
+            public void onTextSet(String text) {
+                File outFile = saveStreamWithName(in, text);
+                if (outFile == null) return;
+
+                final File editorProgramFile = new File(EDITOR_PROGRAM);
+                if (!editorProgramFile.isFile()) {
+                    showErrorDialogAndQuit("The following file does not exist:\n$HOME/bin/termux-file-editor\n\n"
+                        + "Create this file as a script or a symlink - it will be called with the received file as only argument.");
+                    return;
+                }
+
+                // Do this for the user if necessary:
+                editorProgramFile.setExecutable(true);
+
+                final Uri scriptUri = new Uri.Builder().scheme("file").path(EDITOR_PROGRAM).build();
+
+                Intent executeIntent = new Intent(TermuxService.ACTION_EXECUTE, scriptUri);
+                executeIntent.setClass(TermuxFileReceiverActivity.this, TermuxService.class);
+                executeIntent.putExtra(TermuxService.EXTRA_ARGUMENTS, new String[]{outFile.getAbsolutePath()});
+                startService(executeIntent);
+                finish();
+            }
+        }, new DialogInterface.OnDismissListener() {
+            @Override
+            public void onDismiss(DialogInterface dialog) {
+                if (mFinishOnDismissNameDialog) finish();
+            }
+        });
+    }
+
+    public File saveStreamWithName(InputStream in, String attachmentFileName) {
+        File receiveDir = new File(TERMUX_RECEIVEDIR);
+        if (!receiveDir.isDirectory() && !receiveDir.mkdirs()) {
+            showErrorDialogAndQuit("Cannot create directory: " + receiveDir.getAbsolutePath());
+            return null;
+        }
+        try {
+            final File outFile = new File(receiveDir, attachmentFileName);
+            try (FileOutputStream f = new FileOutputStream(outFile)) {
+                byte[] buffer = new byte[4096];
+                int readBytes;
+                while ((readBytes = in.read(buffer)) > 0) {
+                    f.write(buffer, 0, readBytes);
+                }
+            }
+            return outFile;
+        } catch (IOException e) {
+            showErrorDialogAndQuit("Error saving file:\n\n" + e);
+            Log.e("termux", "Error saving file", e);
+            return null;
+        }
+    }
+
+    void handleUrlAndFinish(final String url) {
+        final File urlOpenerProgramFile = new File(URL_OPENER_PROGRAM);
+        if (!urlOpenerProgramFile.isFile()) {
+            showErrorDialogAndQuit("The following file does not exist:\n$HOME/bin/termux-url-opener\n\n"
+                + "Create this file as a script or a symlink - it will be called with the shared URL as only argument.");
+            return;
+        }
+
+        // Do this for the user if necessary:
+        urlOpenerProgramFile.setExecutable(true);
+
+        final Uri urlOpenerProgramUri = new Uri.Builder().scheme("file").path(URL_OPENER_PROGRAM).build();
+
+        Intent executeIntent = new Intent(TermuxService.ACTION_EXECUTE, urlOpenerProgramUri);
+        executeIntent.setClass(TermuxFileReceiverActivity.this, TermuxService.class);
+        executeIntent.putExtra(TermuxService.EXTRA_ARGUMENTS, new String[]{url});
+        startService(executeIntent);
+        finish();
+    }
+
+}

app/src/main/java/com/termux/terminal/JNI.java

@@ -28,7 +28,7 @@ final class JNI {
 	 * @return the file descriptor resulting from opening /dev/ptmx master device. The sub process will have opened the
 	 *         slave device counterpart (/dev/pts/$N) and have it as stdint, stdout and stderr.
 	 */
-	public static native int createSubprocess(String cmd, String cwd, String[] args, String[] envVars, int[] processId);
+	public static native int createSubprocess(String cmd, String cwd, String[] args, String[] envVars, int[] processId, int rows, int columns);
 
 	/** Set the window size for a given pty, which allows connected programs to learn how large their screen is. */
 	public static native void setPtyWindowSize(int fd, int rows, int cols);

app/src/main/java/com/termux/terminal/TerminalBuffer.java

@@ -61,6 +61,10 @@ public final class TerminalBuffer {
 			TerminalRow lineObject = mLines[externalToInternalRow(row)];
 			int x1Index = lineObject.findStartOfColumn(x1);
 			int x2Index = (x2 < mColumns) ? lineObject.findStartOfColumn(x2) : lineObject.getSpaceUsed();
+			if (x2Index == x1Index) {
+				// Selected the start of a wide character.
+				x2Index = lineObject.findStartOfColumn(x2+1);
+			}
 			char[] line = lineObject.mText;
 			int lastPrintingCharIndex = -1;
 			int i;
@@ -71,7 +75,7 @@ public final class TerminalBuffer {
 			} else {
 				for (i = x1Index; i < x2Index; ++i) {
 					char c = line[i];
-					if (c != ' ' && !Character.isLowSurrogate(c)) lastPrintingCharIndex = i;
+					if (c != ' ') lastPrintingCharIndex = i;
 				}
 			}
 			if (lastPrintingCharIndex != -1) builder.append(line, x1Index, lastPrintingCharIndex - x1Index + 1);
@@ -123,10 +127,14 @@ public final class TerminalBuffer {
 		mLines[externalToInternalRow(row)].mLineWrap = true;
 	}
 
-	private boolean getLineWrap(int row) {
+	public boolean getLineWrap(int row) {
 		return mLines[externalToInternalRow(row)].mLineWrap;
 	}
 
+    public void clearLineWrap(int row) {
+        mLines[externalToInternalRow(row)].mLineWrap = false;
+    }
+
 	/**
 	 * Resize the screen which this transcript backs. Currently, this only works if the number of columns does not
 	 * change or the rows expand (that is, it only works when shrinking the number of rows).

app/src/main/java/com/termux/terminal/TerminalEmulator.java

@@ -33,8 +33,7 @@ public final class TerminalEmulator {
 	private static final boolean LOG_ESCAPE_SEQUENCES = false;
 
 	public static final int MOUSE_LEFT_BUTTON = 0;
-	public static final int MOUSE_MIDDLE_BUTTON = 1;
-	public static final int MOUSE_RIGHT_BUTTON = 2;
+
 	/** Mouse moving while having left mouse button pressed. */
 	public static final int MOUSE_LEFT_BUTTON_MOVED = 32;
 	public static final int MOUSE_WHEELUP_BUTTON = 64;
@@ -219,7 +218,7 @@ public final class TerminalEmulator {
 	 */
 	private int mScrollCounter = 0;
 
-	private int mUtf8ToFollow, mUtf8Index;
+	private byte mUtf8ToFollow, mUtf8Index;
 	private final byte[] mUtf8InputBuffer = new byte[4];
 
 	public final TerminalColors mColors = new TerminalColors();
@@ -425,7 +424,11 @@ public final class TerminalEmulator {
 						processCodePoint(/* escape (hexadecimal=0x1B, octal=033): */27);
 						processCodePoint((codePoint & 0x7F) + 0x40);
 					} else {
-						if (Character.UNASSIGNED == Character.getType(codePoint)) codePoint = UNICODE_REPLACEMENT_CHAR;
+						switch (Character.getType(codePoint)) {
+						case Character.UNASSIGNED:
+						case Character.SURROGATE:
+							codePoint = UNICODE_REPLACEMENT_CHAR;
+						}
 						processCodePoint(codePoint);
 					}
 				}
@@ -471,16 +474,28 @@ public final class TerminalEmulator {
 			else
 				mSession.onBell();
 			break;
-		case 8: // BS
-			setCursorCol(Math.max(mLeftMargin, mCursorCol - 1));
-			break;
-		case 9: // Horizontal tab - move to next tab stop, but not past edge of screen
-			int nextTabStop = nextTabStop(1);
-			while (mCursorCol < nextTabStop) {
-				// Emit newlines to get background color right.
-				processCodePoint(' ');
-			}
-			break;
+        case 8: // Backspace (BS, ^H).
+            if (mLeftMargin == mCursorCol) {
+                // Jump to previous line if it was auto-wrapped.
+                int previousRow = mCursorRow - 1;
+                if (previousRow >= 0 && mScreen.getLineWrap(previousRow)) {
+                    mScreen.clearLineWrap(previousRow);
+                    setCursorRowCol(previousRow, mRightMargin - 1);
+                }
+            } else {
+                setCursorCol(mCursorCol - 1);
+            }
+            break;
+        case 9: // Horizontal tab (HT, \t) - move to next tab stop, but not past edge of screen
+		    // XXX: Should perhaps use color if writing to new cells. Try with
+		    //       printf "\033[41m\tXX\033[0m\n"
+		    // The OSX Terminal.app colors the spaces from the tab red, but xterm does not.
+		    // Note that Terminal.app only colors on new cells, in e.g.
+		    //       printf "\033[41m\t\r\033[42m\tXX\033[0m\n"
+		    // the first cells are created with a red background, but when tabbing over
+		    // them again with a green background they are not overwritten.
+            mCursorCol = nextTabStop(1);
+            break;
 		case 10: // Line feed (LF, \n).
 		case 11: // Vertical tab (VT, \v).
 		case 12: // Form feed (FF, \f).
@@ -908,8 +923,9 @@ public final class TerminalEmulator {
 	/** Process byte while in the {@link #ESC_CSI_QUESTIONMARK} escape state. */
 	private void doCsiQuestionMark(int b) {
 		switch (b) {
-		case 'J': // Selective erase in display (DECSED - http://www.vt100.net/docs/vt510-rm/DECSED).
-		case 'K': // Selective erase in line (DECSEL - http://vt100.net/docs/vt510-rm/DECSEL).
+		case 'J': // Selective erase in display (DECSED) - http://www.vt100.net/docs/vt510-rm/DECSED.
+		case 'K': // Selective erase in line (DECSEL) - http://vt100.net/docs/vt510-rm/DECSEL.
+			mAboutToAutoWrap = false;
 			int fillChar = ' ';
 			int startCol = -1;
 			int startRow = -1;
@@ -1230,6 +1246,11 @@ public final class TerminalEmulator {
 				mScreen.blockSet(mRightMargin - 1, mTopMargin, 1, rows, ' ', TextStyle.encode(mForeColor, mBackColor, 0));
 			}
 			break;
+		case 'c': // RIS - Reset to Initial State (http://vt100.net/docs/vt510-rm/RIS).
+			reset();
+			blockClear(0, 0, mColumns, mRows);
+			setCursorPosition(0, 0);
+			break;
 		case 'D': // INDEX
 			doLinefeed();
 			break;
@@ -1322,9 +1343,8 @@ public final class TerminalEmulator {
 			continueSequence(ESC_CSI_ARGS_ASTERIX);
 			break;
 		case '@': {
-			// ESC [ Pn @ - ICH Insert Characters.
-			// "This control function inserts one or more space (SP) characters starting at the cursor position."
-			// http://www.vt100.net/docs/vt510-rm/ICH
+			// "CSI{n}@" - Insert ${n} space characters (ICH) - http://www.vt100.net/docs/vt510-rm/ICH.
+			mAboutToAutoWrap = false;
 			int columnsAfterCursor = mColumns - mCursorCol;
 			int spacesToInsert = Math.min(getArg0(1), columnsAfterCursor);
 			int charsToMove = columnsAfterCursor - spacesToInsert;
@@ -1361,7 +1381,7 @@ public final class TerminalEmulator {
 		case 'I': // Cursor Horizontal Forward Tabulation (CHT). Move the active position n tabs forward.
 			setCursorCol(nextTabStop(getArg0(1)));
 			break;
-		case 'J': // ESC [ Pn J - ED - Erase in Display
+		case 'J': // "${CSI}${0,1,2}J" - Erase in Display (ED)
 			// ED ignores the scrolling margins.
 			switch (getArg0(0)) {
 			case 0: // Erase from the active position to the end of the screen, inclusive (default).
@@ -1378,8 +1398,9 @@ public final class TerminalEmulator {
 				break;
 			default:
 				unknownSequence(b);
-				break;
+				return;
 			}
+			mAboutToAutoWrap = false;
 			break;
 		case 'K': // "CSI{n}K" - Erase in line (EL).
 			switch (getArg0(0)) {
@@ -1394,8 +1415,9 @@ public final class TerminalEmulator {
 				break;
 			default:
 				unknownSequence(b);
-				break;
+				return;
 			}
+			mAboutToAutoWrap = false;
 			break;
 		case 'L': // "${CSI}{N}L" - insert ${N} lines (IL).
 		{
@@ -1408,6 +1430,7 @@ public final class TerminalEmulator {
 			break;
 		case 'M': // "${CSI}${N}M" - delete N lines (DL).
 		{
+			mAboutToAutoWrap = false;
 			int linesAfterCursor = mBottomMargin - mCursorRow;
 			int linesToDelete = Math.min(getArg0(1), linesAfterCursor);
 			int linesToMove = linesAfterCursor - linesToDelete;
@@ -1422,6 +1445,7 @@ public final class TerminalEmulator {
 			// As characters are deleted, the remaining characters between the cursor and right margin move to the left.
 			// Character attributes move with the characters. The terminal adds blank spaces with no visual character
 			// attributes at the right margin. DCH has no effect outside the scrolling margins."
+			mAboutToAutoWrap = false;
 			int cellsAfterCursor = mColumns - mCursorCol;
 			int cellsToDelete = Math.min(getArg0(1), cellsAfterCursor);
 			int cellsToMove = cellsAfterCursor - cellsToDelete;
@@ -1444,7 +1468,7 @@ public final class TerminalEmulator {
 				final int linesToScrollArg = getArg0(1);
 				final int linesBetweenTopAndBottomMargins = mBottomMargin - mTopMargin;
 				final int linesToScroll = Math.min(linesBetweenTopAndBottomMargins, linesToScrollArg);
-				mScreen.blockCopy(0, mTopMargin, mColumns, linesBetweenTopAndBottomMargins - linesToScroll, 0, linesToScroll);
+				mScreen.blockCopy(0, mTopMargin, mColumns, linesBetweenTopAndBottomMargins - linesToScroll, 0, mTopMargin + linesToScroll);
 				blockClear(0, mTopMargin, mColumns, linesToScroll);
 			} else {
 				// "${CSI}${func};${startx};${starty};${firstrow};${lastrow}T" - initiate highlight mouse tracking.
@@ -1452,6 +1476,7 @@ public final class TerminalEmulator {
 			}
 			break;
 		case 'X': // "${CSI}${N}X" - Erase ${N:=1} character(s) (ECH). FIXME: Clears character attributes?
+			mAboutToAutoWrap = false;
 			mScreen.blockSet(mCursorCol, mCursorRow, Math.min(getArg0(1), mColumns - mCursorCol), 1, ' ', getStyle());
 			break;
 		case 'Z': // Cursor Backward Tabulation (CBT). Move the active position n tabs backward.

app/src/main/java/com/termux/terminal/TerminalRow.java

@@ -184,6 +184,7 @@ public final class TerminalRow {
 		mSpaceUsed += javaCharDifference;
 
 		// Store char. A combining character is stored at the end of the existing contents so that it modifies them:
+		//noinspection ResultOfMethodCallIgnored - since we already now how many java chars is used.
 		Character.toChars(codePoint, text, oldStartOfColumnIndex + (newIsCombining ? oldCharactersUsedForColumn : 0));
 
 		if (oldCodePointDisplayWidth == 2 && newCodePointDisplayWidth == 1) {

app/src/main/java/com/termux/terminal/TerminalSession.java

@@ -82,14 +82,17 @@ public final class TerminalSession extends TerminalOutput {
 	/** Callback which gets notified when a session finishes or changes title. */
 	final SessionChangedCallback mChangeCallback;
 
-	/** The pid of the shell process or -1 if not running. */
+	/** The pid of the shell process. 0 if not started and -1 if finished running. */
 	int mShellPid;
-	int mShellExitStatus = -1;
+
+	/** The exit status of the shell process. Only valid if ${@link #mShellPid} is -1. */
+	int mShellExitStatus;
+
 	/**
 	 * The file descriptor referencing the master half of a pseudo-terminal pair, resulting from calling
-	 * {@link JNI#createSubprocess(String, String, String[], String[], int[])}.
+	 * {@link JNI#createSubprocess(String, String, String[], String[], int[], int, int)}.
 	 */
-	final int mTerminalFileDescriptor;
+	private int mTerminalFileDescriptor;
 
 	/** Set by the application for user identification of session, not by terminal. */
 	public String mSessionName;
@@ -128,20 +131,26 @@ public final class TerminalSession extends TerminalOutput {
 		}
 	};
 
+	private final String mShellPath;
+	private final String mCwd;
+	private final String[] mArgs;
+	private final String[] mEnv;
+
 	public TerminalSession(String shellPath, String cwd, String[] args, String[] env, SessionChangedCallback changeCallback) {
 		mChangeCallback = changeCallback;
 
-		int[] processId = new int[1];
-		mTerminalFileDescriptor = JNI.createSubprocess(shellPath, cwd, args, env, processId);
-		mShellPid = processId[0];
+		this.mShellPath = shellPath;
+		this.mCwd = cwd;
+		this.mArgs = args;
+		this.mEnv = env;
 	}
 
 	/** Inform the attached pty of the new size and reflow or initialize the emulator. */
 	public void updateSize(int columns, int rows) {
-		JNI.setPtyWindowSize(mTerminalFileDescriptor, rows, columns);
 		if (mEmulator == null) {
 			initializeEmulator(columns, rows);
 		} else {
+			JNI.setPtyWindowSize(mTerminalFileDescriptor, rows, columns);
 			mEmulator.resize(columns, rows);
 		}
 	}
@@ -161,6 +170,11 @@ public final class TerminalSession extends TerminalOutput {
 	 */
 	public void initializeEmulator(int columns, int rows) {
 		mEmulator = new TerminalEmulator(this, columns, rows, /* transcript= */5000);
+
+		int[] processId = new int[1];
+		mTerminalFileDescriptor = JNI.createSubprocess(mShellPath, mCwd, mArgs, mEnv, processId, rows, columns);
+		mShellPid = processId[0];
+
 		final FileDescriptor terminalFileDescriptorWrapped = wrapFileDescriptor(mTerminalFileDescriptor);
 
 		new Thread("TermSessionInputReader[pid=" + mShellPid + "]") {
@@ -204,7 +218,7 @@ public final class TerminalSession extends TerminalOutput {
 	/** Write data to the shell process. */
 	@Override
 	public void write(byte[] data, int offset, int count) {
-		mTerminalToProcessIOQueue.write(data, offset, count);
+		if (mShellPid > 0) mTerminalToProcessIOQueue.write(data, offset, count);
 	}
 
 	/** Write the Unicode code point to the terminal encoded in UTF-8. */

app/src/main/java/com/termux/view/TerminalKeyListener.java

@@ -6,15 +6,19 @@ import android.view.ScaleGestureDetector;
 /**
  * Input and scale listener which may be set on a {@link TerminalView} through
  * {@link TerminalView#setOnKeyListener(TerminalKeyListener)}.
+ *
+ * TODO: Rename to TerminalViewClient.
  */
 public interface TerminalKeyListener {
 
 	/** Callback function on scale events according to {@link ScaleGestureDetector#getScaleFactor()}. */
 	float onScale(float scale);
 
-	void onLongPress(MotionEvent e);
-
 	/** On a single tap on the terminal if terminal mouse reporting not enabled. */
 	void onSingleTapUp(MotionEvent e);
 
+	boolean shouldBackButtonBeMappedToEscape();
+
+	void copyModeChanged(boolean copyMode);
+
 }

app/src/main/java/com/termux/view/TerminalView.java

@@ -1,29 +1,28 @@
 package com.termux.view;
 
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.InputStream;
-import java.util.Properties;
-
-import com.termux.terminal.EmulatorDebug;
-import com.termux.terminal.KeyHandler;
-import com.termux.terminal.TerminalColors;
-import com.termux.terminal.TerminalEmulator;
-import com.termux.terminal.TerminalSession;
-
 import android.annotation.SuppressLint;
-import android.app.Activity;
+import android.annotation.TargetApi;
+import android.content.ClipData;
+import android.content.ClipboardManager;
 import android.content.Context;
+import android.content.res.TypedArray;
 import android.graphics.Canvas;
+import android.graphics.Rect;
 import android.graphics.Typeface;
+import android.graphics.drawable.BitmapDrawable;
+import android.media.AudioManager;
+import android.os.Build;
 import android.text.InputType;
 import android.text.TextUtils;
 import android.util.AttributeSet;
 import android.util.Log;
+import android.view.ActionMode;
 import android.view.HapticFeedbackConstants;
 import android.view.InputDevice;
 import android.view.KeyCharacterMap;
 import android.view.KeyEvent;
+import android.view.Menu;
+import android.view.MenuItem;
 import android.view.MotionEvent;
 import android.view.View;
 import android.view.inputmethod.BaseInputConnection;
@@ -31,6 +30,19 @@ import android.view.inputmethod.EditorInfo;
 import android.view.inputmethod.InputConnection;
 import android.widget.Scroller;
 
+import com.termux.R;
+import com.termux.terminal.EmulatorDebug;
+import com.termux.terminal.KeyHandler;
+import com.termux.terminal.TerminalBuffer;
+import com.termux.terminal.TerminalColors;
+import com.termux.terminal.TerminalEmulator;
+import com.termux.terminal.TerminalSession;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.InputStream;
+import java.util.Properties;
+
 /** View displaying and interacting with a {@link TerminalSession}. */
 public final class TerminalView extends View {
 
@@ -52,9 +64,11 @@ public final class TerminalView extends View {
 	/** Keeping track of the special keys acting as Ctrl and Fn for the soft keyboard and other hardware keys. */
 	boolean mVirtualControlKeyDown, mVirtualFnKeyDown;
 
-	boolean mIsSelectingText = false;
-	int mSelXAnchor = -1, mSelYAnchor = -1;
+	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;
@@ -79,7 +93,7 @@ public final class TerminalView extends View {
 			@Override
 			public boolean onUp(MotionEvent e) {
 				mScrollRemainder = 0.0f;
-				if (mEmulator != null && mEmulator.isMouseTrackingActive()) {
+				if (mEmulator != null && mEmulator.isMouseTrackingActive() && !mIsSelectingText) {
 					// Quick event processing when mouse tracking is active - do not wait for check of double tapping
 					// for zooming.
 					sendMouseEventCode(e, TerminalEmulator.MOUSE_LEFT_BUTTON, true);
@@ -92,6 +106,7 @@ public final class TerminalView extends View {
 			@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)) {
@@ -104,7 +119,7 @@ public final class TerminalView extends View {
 
 			@Override
 			public boolean onScroll(MotionEvent e2, float distanceX, float distanceY) {
-				if (mEmulator == null) return true;
+				if (mEmulator == null || mIsSelectingText) return true;
 				if (mEmulator.isMouseTrackingActive() && e2.isFromSource(InputDevice.SOURCE_MOUSE)) {
 					// If moving with mouse pointer while pressing button, report that instead of scroll.
 					// This means that we never report moving with button press-events for touch input,
@@ -122,6 +137,7 @@ public final class TerminalView extends View {
 
 			@Override
 			public boolean onScale(float focusX, float focusY, float scale) {
+				if (mEmulator == null || mIsSelectingText) return true;
 				mScaleFactor *= scale;
 				mScaleFactor = mOnKeyListener.onScale(mScaleFactor);
 				return true;
@@ -129,7 +145,7 @@ public final class TerminalView extends View {
 
 			@Override
 			public boolean onFling(final MotionEvent e2, float velocityX, float velocityY) {
-				if (mEmulator == null) return true;
+				if (mEmulator == null || mIsSelectingText) return true;
 				// Do not start scrolling until last fling has been taken care of:
 				if (!mScroller.isFinished()) return true;
 
@@ -176,9 +192,9 @@ public final class TerminalView extends View {
 
 			@Override
 			public void onLongPress(MotionEvent e) {
-				if (mEmulator != null && !mGestureRecognizer.isInProgress()) {
+				if (!mGestureRecognizer.isInProgress() && !mIsSelectingText) {
 					performHapticFeedback(HapticFeedbackConstants.LONG_PRESS);
-					mOnKeyListener.onLongPress(e);
+					toggleSelectingText(e);
 				}
 			}
 		});
@@ -229,7 +245,7 @@ public final class TerminalView extends View {
 		//
 		// So a bit messy. If this gets too messy it's perhaps best resolved by reverting back to just
 		// "TYPE_NULL" and let the Pinyin Input english keyboard be in word mode.
-		outAttrs.inputType = InputType.TYPE_NULL | InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS | InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD;
+		outAttrs.inputType = InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS | InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD;
 
 		// Let part of the application show behind when in landscape:
 		outAttrs.imeOptions |= EditorInfo.IME_FLAG_NO_FULLSCREEN;
@@ -336,20 +352,36 @@ public final class TerminalView extends View {
 	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();
-			mSelY1 -= rowShift;
-			mSelY2 -= rowShift;
-			mSelYAnchor -= rowShift;
+			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;
+			}
 		}
-		mEmulator.clearScrollCounter();
 
-		if (mTopRow != 0) {
+		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;
-			scrollTo(0, 0);
 		}
 
+		mEmulator.clearScrollCounter();
+
 		invalidate();
 	}
 
@@ -423,83 +455,105 @@ public final class TerminalView extends View {
 
 	@SuppressLint("ClickableViewAccessibility")
 	@Override
+	@TargetApi(23)
 	public boolean onTouchEvent(MotionEvent ev) {
 		if (mEmulator == null) return true;
-		final boolean eventFromMouse = ev.isFromSource(InputDevice.SOURCE_MOUSE);
 		final int action = ev.getAction();
 
-		if (eventFromMouse) {
-			if ((ev.getButtonState() & MotionEvent.BUTTON_SECONDARY) != 0) {
-				if (action == MotionEvent.ACTION_DOWN) showContextMenu();
-				return true;
-			} else if (mEmulator.isMouseTrackingActive() && (ev.getAction() == MotionEvent.ACTION_DOWN || ev.getAction() == MotionEvent.ACTION_UP)) {
-				sendMouseEventCode(ev, TerminalEmulator.MOUSE_LEFT_BUTTON, ev.getAction() == MotionEvent.ACTION_DOWN);
-				return true;
-			} else if (!mEmulator.isMouseTrackingActive() && action == MotionEvent.ACTION_DOWN) {
-				// Start text selection with mouse. Note that the check against MotionEvent.ACTION_DOWN is
-				// important, since we otherwise would pick up secondary mouse button up actions.
-				mIsSelectingText = true;
-			}
-		} else if (!mIsSelectingText) {
-			mGestureRecognizer.onTouchEvent(ev);
-			return true;
-		}
-
 		if (mIsSelectingText) {
+			int cy = (int) (ev.getY() / mRenderer.mFontLineSpacing) + mTopRow;
 			int cx = (int) (ev.getX() / mRenderer.mFontWidth);
-			// Offset for finger:
-			final int SELECT_TEXT_OFFSET_Y = eventFromMouse ? 0 : -40;
-			int cy = (int) ((ev.getY() + SELECT_TEXT_OFFSET_Y) / mRenderer.mFontLineSpacing) + mTopRow;
+
 			switch (action) {
+			case MotionEvent.ACTION_UP:
+				mInitialTextSelection = false;
+				break;
 			case MotionEvent.ACTION_DOWN:
-				mSelXAnchor = cx;
-				mSelYAnchor = cy;
-				mSelX1 = cx;
-				mSelY1 = cy;
-				mSelX2 = mSelX1;
-				mSelY2 = mSelY1;
-				invalidate();
+				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:
-			case MotionEvent.ACTION_UP:
-				boolean touchBeforeAnchor = (cy < mSelYAnchor || (cy == mSelYAnchor && cx < mSelXAnchor));
-				int minx = touchBeforeAnchor ? cx : mSelXAnchor;
-				int maxx = !touchBeforeAnchor ? cx : mSelXAnchor;
-				int miny = touchBeforeAnchor ? cy : mSelYAnchor;
-				int maxy = !touchBeforeAnchor ? cy : mSelYAnchor;
-				mSelX1 = minx;
-				mSelY1 = miny;
-				mSelX2 = maxx;
-				mSelY2 = maxy;
-				if (action == MotionEvent.ACTION_UP) {
-					String selectedText = mEmulator.getSelectedText(mSelX1, mSelY1, mSelX2, mSelY2).trim();
-					mTermSession.clipboardText(selectedText);
-					toggleSelectingText();
+				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:
-				toggleSelectingText();
-				invalidate();
 				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;
+			}
 		}
 
-		return false;
+		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_ESCAPE || keyCode == KeyEvent.KEYCODE_BACK) {
-			// Handle the escape key ourselves to avoid the system from treating it as back key
-			// and e.g. close keyboard.
-			switch (event.getAction()) {
-			case KeyEvent.ACTION_DOWN:
-				return onKeyDown(keyCode, event);
-			case KeyEvent.ACTION_UP:
-				return onKeyUp(keyCode, 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);
@@ -518,7 +572,7 @@ public final class TerminalView extends View {
 		if (handleVirtualKeys(keyCode, event, true)) {
 			invalidate();
 			return true;
-		} else if (event.isSystem() && keyCode != KeyEvent.KEYCODE_BACK) {
+		} else if (event.isSystem() && (!mOnKeyListener.shouldBackButtonBeMappedToEscape() || keyCode != KeyEvent.KEYCODE_BACK)) {
 			return super.onKeyDown(keyCode, event);
 		}
 
@@ -639,6 +693,10 @@ public final class TerminalView extends View {
 				// As left alt+b, jumping forward in readline:
 				codePoint = 'b';
 				leftAltDownFromEvent = true;
+			} else if (codePoint == 'v' || codePoint == 'V') {
+				codePoint = -1;
+				AudioManager audio = (AudioManager) getContext().getSystemService(Context.AUDIO_SERVICE);
+				audio.adjustSuggestedStreamVolume(AudioManager.ADJUST_SAME, AudioManager.USE_DEFAULT_STREAM_TYPE, AudioManager.FLAG_SHOW_UI);
 			}
 		}
 
@@ -646,13 +704,20 @@ public final class TerminalView extends View {
 			if (resultingKeyCode > -1) {
 				handleKeyCode(resultingKeyCode, 0);
 			} else {
-				// The below two workarounds are needed on at least Logitech Keyboard k810 on Samsung Galaxy Tab Pro
-				// (Android 4.4) with the stock Samsung Keyboard. They should be harmless when not used since the need
-				// to input the original characters instead of the new ones using the keyboard should be low.
-				// Rewrite U+02DC 'SMALL TILDE' to U+007E 'TILDE' for ~ to work in shells:
-				if (codePoint == 0x02DC) codePoint = 0x07E;
-				// Rewrite U+02CB 'MODIFIER LETTER GRAVE ACCENT' to U+0060 'GRAVE ACCENT' for ` (backticks) to work:
-				if (codePoint == 0x02CB) codePoint = 0x60;
+				// Work around bluetooth keyboards sending funny unicode characters instead
+				// of the more normal ones from ASCII that terminal programs expect - the
+				// desire to input the original characters should be low.
+				switch (codePoint) {
+					case 0x02DC: // SMALL TILDE.
+						codePoint = 0x007E; // TILDE (~).
+						break;
+					case 0x02CB: // MODIFIER LETTER GRAVE ACCENT.
+						codePoint = 0x0060; // GRAVE ACCENT (`).
+						break;
+					case 0x02C6: // MODIFIER LETTER CIRCUMFLEX ACCENT.
+						codePoint = 0x005E; // CIRCUMFLEX ACCENT (^).
+						break;
+				}
 
 				// If left alt, send escape before the code point to make e.g. Alt+B and Alt+F work in readline:
 				mTermSession.writeCodePoint(leftAltDownFromEvent, codePoint);
@@ -712,67 +777,29 @@ public final class TerminalView extends View {
 		return false;
 	}
 
-	public void checkForTypeface() {
-		new Thread() {
-			@Override
-			public void run() {
-				try {
-					File fontFile = new File(getContext().getFilesDir().getPath() + "/home/.termux/font.ttf");
-					final Typeface newTypeface = fontFile.exists() ? Typeface.createFromFile(fontFile) : Typeface.MONOSPACE;
-					if (newTypeface != mRenderer.mTypeface) {
-						((Activity) getContext()).runOnUiThread(new Runnable() {
-							@Override
-							public void run() {
-								try {
-									mRenderer = new TerminalRenderer(mRenderer.mTextSize, newTypeface);
-									updateSize();
-									invalidate();
-								} catch (Exception e) {
-									Log.e(EmulatorDebug.LOG_TAG, "Error loading font", e);
-								}
-							}
-						});
-					}
-				} catch (Exception e) {
-					Log.e(EmulatorDebug.LOG_TAG, "Error loading font", e);
-				}
-			}
-		}.start();
-	}
+	public 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");
 
-	public void checkForColors() {
-		new Thread() {
-			@Override
-			public void run() {
-				try {
-					File colorsFile = new File(getContext().getFilesDir().getPath() + "/home/.termux/colors.properties");
-					final Properties props = colorsFile.isFile() ? new Properties() : null;
-					if (props != null) {
-						try (InputStream in = new FileInputStream(colorsFile)) {
-							props.load(in);
-						}
-					}
-					((Activity) getContext()).runOnUiThread(new Runnable() {
-						@Override
-						public void run() {
-							try {
-								if (props == null) {
-									TerminalColors.COLOR_SCHEME.reset();
-								} else {
-									TerminalColors.COLOR_SCHEME.updateWith(props);
-								}
-								if (mEmulator != null) mEmulator.mColors.reset();
-								invalidate();
-							} catch (Exception e) {
-								Log.e(EmulatorDebug.LOG_TAG, "Setting colors failed: " + e.getMessage());
-							}
-						}
-					});
-				} catch (Exception e) {
-					Log.e(EmulatorDebug.LOG_TAG, "Failed colors handling", e);
+			final Properties props = new Properties();
+			if (colorsFile.isFile()) {
+				try (InputStream in = new FileInputStream(colorsFile)) {
+					props.load(in);
 				}
 			}
-		}.start();
+			TerminalColors.COLOR_SCHEME.updateWith(props);
+			if (mEmulator != null) mEmulator.mColors.reset();
+
+			final Typeface newTypeface = fontFile.exists() ? Typeface.createFromFile(fontFile) : Typeface.MONOSPACE;
+			mRenderer = new TerminalRenderer(mRenderer.mTextSize, newTypeface);
+			updateSize();
+
+			invalidate();
+		} catch (Exception e) {
+			Log.e(EmulatorDebug.LOG_TAG, "Error in checkForFontAndColors()", e);
+		}
 	}
 
 	/**
@@ -810,13 +837,155 @@ public final class TerminalView extends View {
 			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. */
-	public void toggleSelectingText() {
+	@TargetApi(23)
+	public void toggleSelectingText(MotionEvent ev) {
 		mIsSelectingText = !mIsSelectingText;
-		if (!mIsSelectingText) mSelX1 = mSelY1 = mSelX2 = mSelY2 = -1;
+		mOnKeyListener.copyModeChanged(mIsSelectingText);
+
+		if (mIsSelectingText) {
+			if (mLeftSelectionHandle == null) {
+				mLeftSelectionHandle = (BitmapDrawable) getContext().getDrawable(R.drawable.text_select_handle_left_material);
+				mRightSelectionHandle = (BitmapDrawable) getContext().getDrawable(R.drawable.text_select_handle_right_material);
+			}
+
+			int cx = (int) (ev.getX() / mRenderer.mFontWidth);
+			final boolean eventFromMouse = ev.isFromSource(InputDevice.SOURCE_MOUSE);
+			// Offset for finger:
+			final int SELECT_TEXT_OFFSET_Y = eventFromMouse ? 0 : -40;
+			int cy = (int) ((ev.getY() + SELECT_TEXT_OFFSET_Y) / mRenderer.mFontLineSpacing) + mTopRow;
+
+			mSelX1 = mSelX2 = cx;
+			mSelY1 = mSelY2 = cy;
+
+			TerminalBuffer screen = mEmulator.getScreen();
+			if (!" ".equals(screen.getSelectedText(mSelX1, mSelY1, mSelX1, mSelY1))) {
+				// Selecting something other than whitespace. Expand to word.
+				while (mSelX1 > 0 && !"".equals(screen.getSelectedText(mSelX1-1, mSelY1, mSelX1-1, mSelY1))) {
+					mSelX1--;
+				}
+				while (mSelX2 < mEmulator.mColumns-1 && !"".equals(screen.getSelectedText(mSelX2+1, mSelY1, mSelX2+1, mSelY1))) {
+					mSelX2++;
+				}
+			}
+
+			mInitialTextSelection = true;
+			mIsDraggingLeftSelection = true;
+			mSelectionDownX = ev.getX();
+			mSelectionDownY = ev.getY();
+
+			final ActionMode.Callback callback = new ActionMode.Callback() {
+				@Override
+				public boolean onCreateActionMode(ActionMode mode, Menu menu) {
+					final int[] ACTION_MODE_ATTRS = { android.R.attr.actionModeCopyDrawable, android.R.attr.actionModePasteDrawable, };
+					TypedArray styledAttributes = getContext().obtainStyledAttributes(ACTION_MODE_ATTRS);
+                    try {
+                        int show = MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT;
+
+                        ClipboardManager clipboard = (ClipboardManager) getContext().getSystemService(Context.CLIPBOARD_SERVICE);
+                        menu.add(Menu.NONE, 1, Menu.NONE, R.string.copy_text).setIcon(styledAttributes.getResourceId(0, 0)).setShowAsAction(show);
+                        menu.add(Menu.NONE, 2, Menu.NONE, R.string.paste_text).setIcon(styledAttributes.getResourceId(1, 0)).setEnabled(clipboard.hasPrimaryClip()).setShowAsAction(show);
+                        menu.add(Menu.NONE, 3, Menu.NONE, R.string.text_selection_more);
+                    } finally {
+                        styledAttributes.recycle();
+                    }
+					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() {

app/src/main/jni/termux.c

@@ -22,7 +22,14 @@ static int throw_runtime_exception(JNIEnv* env, char const* message)
         return -1;
 }
 
-static int create_subprocess(JNIEnv* env, char const* cmd, char const* cwd, char* const argv[], char** envp, int* pProcessId)
+static int create_subprocess(JNIEnv* env,
+                             char const* cmd,
+                             char const* cwd,
+                             char* const argv[],
+                             char** envp,
+                             int* pProcessId,
+                             jint rows,
+                             jint columns)
 {
         int ptm = open("/dev/ptmx", O_RDWR | O_CLOEXEC);
         if (ptm < 0) return throw_runtime_exception(env, "Cannot open /dev/ptmx");
@@ -49,8 +56,8 @@ static int create_subprocess(JNIEnv* env, char const* cmd, char const* cwd, char
         tios.c_iflag &= ~(IXON | IXOFF);
         tcsetattr(ptm, TCSANOW, &tios);
 
-		/** Set initial winsize (better too small than too large). */
-        struct winsize sz = { .ws_row = 20, .ws_col = 20 };
+        /** Set initial winsize. */
+        struct winsize sz = { .ws_row = rows, .ws_col = columns };
         ioctl(ptm, TIOCSWINSZ, &sz);
 
         pid_t pid = fork();
@@ -105,7 +112,16 @@ static int create_subprocess(JNIEnv* env, char const* cmd, char const* cwd, char
         }
 }
 
-JNIEXPORT jint JNICALL Java_com_termux_terminal_JNI_createSubprocess(JNIEnv* env, jclass TERMUX_UNUSED(clazz), jstring cmd, jstring cwd, jobjectArray args, jobjectArray envVars, jintArray processIdArray)
+JNIEXPORT jint JNICALL Java_com_termux_terminal_JNI_createSubprocess(
+    JNIEnv* env,
+    jclass TERMUX_UNUSED(clazz),
+    jstring cmd,
+    jstring cwd,
+    jobjectArray args,
+    jobjectArray envVars,
+    jintArray processIdArray,
+    jint rows,
+    jint columns)
 {
         jsize size = args ? (*env)->GetArrayLength(env, args) : 0;
         char** argv = NULL;
@@ -140,7 +156,7 @@ JNIEXPORT jint JNICALL Java_com_termux_terminal_JNI_createSubprocess(JNIEnv* env
         int procId = 0;
 	char const* cmd_cwd = (*env)->GetStringUTFChars(env, cwd, NULL);
         char const* cmd_utf8 = (*env)->GetStringUTFChars(env, cmd, NULL);
-        int ptm = create_subprocess(env, cmd_utf8, cmd_cwd, argv, envp, &procId);
+        int ptm = create_subprocess(env, cmd_utf8, cmd_cwd, argv, envp, &procId, rows, columns);
         (*env)->ReleaseStringUTFChars(env, cmd, cmd_utf8);
         (*env)->ReleaseStringUTFChars(env, cmd, cmd_cwd);
 

app/src/main/res/drawable/text_select_handle_left_material.xml

@@ -0,0 +1,4 @@
+<?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" />

app/src/main/res/drawable/text_select_handle_right_material.xml

@@ -0,0 +1,4 @@
+<?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" />

app/src/main/res/values/strings.xml

@@ -1,11 +1,8 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
    <string name="application_name">Termux</string>
-   <string name="application_help">Termux help</string>
    <string name="shared_user_label">Termux user</string>
    <string name="new_session">New session</string>
-   <string name="new_session_normal_unnamed">Normal - unnamed</string>
-   <string name="new_session_normal_named">Normal - named</string>
    <string name="new_session_failsafe">Failsafe</string>
    <string name="toggle_soft_keyboard">Keyboard</string>
    <string name="reset_terminal">Reset</string>
@@ -15,7 +12,7 @@
    <string name="help">Help</string>
 
    <string name="welcome_dialog_title">Welcome to Termux</string>
-   <string name="welcome_dialog_body">Long press anywhere on the terminal for a context menu where Help is available.\n\nExecute \'apt update\' to update the packages list before installing packages.</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="welcome_dialog_dont_show_again_button">Do not show again</string>
 
    <string name="bootstrap_installer_body">Installing…</string>
@@ -30,18 +27,18 @@
 
    <string name="reset_toast_notification">Terminal reset.</string>
 
-  <string name="select">Select…</string>
-  <string name="select_text">Select text</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">Select all text and share</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="kill_process">Hangup</string>
+  <string name="copy_text">Copy</string>
+  <string name="text_selection_more">More…</string>
 
+  <string name="kill_process">Hangup</string>
   <string name="confirm_kill_process">Close this process?</string>
 
   <string name="session_rename_title">Set session name</string>
@@ -58,4 +55,8 @@
 
   <string name="empty_folder">Empty 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>

app/src/main/res/values/styles.xml

@@ -6,10 +6,13 @@
     <style name="Theme.Termux" parent="@android:style/Theme.Material.Light.NoActionBar">
         <item name="android:statusBarColor">#000000</item>
         <item name="android:windowBackground">@android:color/black</item>
-        
+
         <!-- Seen in buttons on left drawer: -->
         <item name="android:colorAccent">#212121</item>
-    	<item name="android:alertDialogTheme">@style/TermuxAlertDialogStyle</item>
+        <item name="android:alertDialogTheme">@style/TermuxAlertDialogStyle</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>
     </style>
 
 	<style name="TermuxAlertDialogStyle" parent="@android:style/Theme.Material.Light.Dialog.Alert">
@@ -17,4 +20,4 @@
         <item name="android:colorAccent">#212121</item>
     </style>
 
-</resources>
+</resources>

app/src/test/java/com/termux/terminal/ControlSequenceIntroducerTest.java

@@ -20,4 +20,13 @@ public class ControlSequenceIntroducerTest extends TerminalTestCase {
 		withTerminalSized(3, 4).enterString("1\r\n2\r\n3\r\nhi\033[Sy").assertLinesAre("2  ", "3  ", "hi ", "  y");
 	}
 
+	/** CSI Ps X  Erase Ps Character(s) (default = 1) (ECH). */
+	public void testCsiX() {
+		// See https://code.google.com/p/chromium/issues/detail?id=212712 where test was extraced from.
+		withTerminalSized(13, 2).enterString("abcdefghijkl\b\b\b\b\b\033[X").assertLinesAre("abcdefg ijkl ", "             ");
+		withTerminalSized(13, 2).enterString("abcdefghijkl\b\b\b\b\b\033[1X").assertLinesAre("abcdefg ijkl ", "             ");
+		withTerminalSized(13, 2).enterString("abcdefghijkl\b\b\b\b\b\033[2X").assertLinesAre("abcdefg  jkl ", "             ");
+		withTerminalSized(13, 2).enterString("abcdefghijkl\b\b\b\b\b\033[20X").assertLinesAre("abcdefg      ", "             ");
+	}
+
 }

app/src/test/java/com/termux/terminal/CursorAndScreenTest.java

@@ -163,7 +163,12 @@ public class CursorAndScreenTest extends TerminalTestCase {
 		}
 	}
 
-	public void testHorizontalTabColorsBackground() {
+    /**
+     * See comments on horizontal tab handling in TerminalEmulator.java.
+     *
+     * We do not want to color already written cells when tabbing over them.
+     */
+	public void DISABLED_testHorizontalTabColorsBackground() {
 		withTerminalSized(10, 3).enterString("\033[48;5;15m").enterString("\t");
 		assertCursorAt(0, 8);
 		for (int i = 0; i < 10; i++) {
@@ -172,4 +177,54 @@ public class CursorAndScreenTest extends TerminalTestCase {
 		}
 	}
 
+	/**
+	 * Test interactions between the cursor overflow bit and various escape sequences.
+	 * <p/>
+	 * Adapted from hterm:
+	 * https://chromium.googlesource.com/chromiumos/platform/assets/+/2337afa5c063127d5ce40ec7fec9b602d096df86%5E%21/#F2
+	 */
+	public void testClearingOfAutowrap() {
+		// Fill a row with the last hyphen wrong, then run a command that
+		// modifies the screen, then add a hyphen. The wrap bit should be
+		// cleared, so the extra hyphen can fix the row.
+		withTerminalSized(15, 6);
+
+		enterString("-----  1  ----X");
+		enterString("\033[K-");  // EL
+
+		enterString("-----  2  ----X");
+		enterString("\033[J-");  // ED
+
+		enterString("-----  3  ----X");
+		enterString("\033[@-");  // ICH
+
+		enterString("-----  4  ----X");
+		enterString("\033[P-");  // DCH
+
+		enterString("-----  5  ----X");
+		enterString("\033[X-");  // ECH
+
+		// DL will delete the entire line but clear the wrap bit, so we
+		// expect a hyphen at the end and nothing else.
+		enterString("XXXXXXXXXXXXXXX");
+		enterString("\033[M-");  // DL
+
+		assertLinesAre(
+				"-----  1  -----",
+				"-----  2  -----",
+				"-----  3  -----",
+				"-----  4  -----",
+				"-----  5  -----",
+				"              -");
+	}
+
+    public void testBackspaceAcrossWrappedLines() {
+        // Backspace should not go to previous line if not auto-wrapped:
+        withTerminalSized(3, 3).enterString("hi\r\n\b\byou").assertLinesAre("hi ", "you", "   ");
+        // Backspace should go to previous line if auto-wrapped:
+        withTerminalSized(3, 3).enterString("hi y").assertLinesAre("hi ", "y  ", "   ").enterString("\b\b#").assertLinesAre("hi#", "y  ", "   ");
+        // Initial backspace should do nothing:
+        withTerminalSized(3, 3).enterString("\b\b\b\bhi").assertLinesAre("hi ", "   ", "   ");
+    }
+
 }

app/src/test/java/com/termux/terminal/DecSetTest.java

@@ -28,6 +28,11 @@ public class DecSetTest extends TerminalTestCase {
 		assertFalse(mTerminal.isShowingCursor());
 		mTerminal.reset();
 		assertTrue("Resetting the terminal should show the cursor", mTerminal.isShowingCursor());
+
+		enterString("\033[?25l");
+		assertFalse(mTerminal.isShowingCursor());
+		enterString("\033c"); // RIS resetting should reveal cursor.
+		assertTrue(mTerminal.isShowingCursor());
 	}
 
 	/** DECSET 2004, controls bracketed paste mode. */

app/src/test/java/com/termux/terminal/KeyHandlerTest.java

@@ -111,6 +111,10 @@ public class KeyHandlerTest extends TestCase {
 		// Backspace.
 		assertKeysEquals("\u007f", KeyHandler.getCode(KeyEvent.KEYCODE_DEL, 0, false, false));
 
+		// Space.
+		assertNull(KeyHandler.getCode(KeyEvent.KEYCODE_SPACE, 0, false, false));
+		assertKeysEquals("\u0000", KeyHandler.getCode(KeyEvent.KEYCODE_SPACE, KeyHandler.KEYMOD_CTRL, false, false));
+
 		// Back tab.
 		assertKeysEquals("\033[Z", KeyHandler.getCode(KeyEvent.KEYCODE_TAB, KeyHandler.KEYMOD_SHIFT, false, false));
 

app/src/test/java/com/termux/terminal/OperatingSystemControlTest.java

@@ -15,7 +15,7 @@ public class OperatingSystemControlTest extends TerminalTestCase {
 		withTerminalSized(10, 10);
 		enterString("\033]0;Hello, world\007");
 		assertEquals("Hello, world", mTerminal.getTitle());
-		expectedTitleChanges.add(new ChangedTitle((String) null, "Hello, world"));
+		expectedTitleChanges.add(new ChangedTitle(null, "Hello, world"));
 		assertEquals(expectedTitleChanges, mOutput.titleChanges);
 
 		enterString("\033]0;Goodbye, world\007");

app/src/test/java/com/termux/terminal/ScrollRegionTest.java

@@ -94,4 +94,8 @@ public class ScrollRegionTest extends TerminalTestCase {
 		withTerminalSized(3, 3).enterString("\033[?69h\033[0;2sABCD\0339").assertLinesAre("B  ", "D  ", "   ");
 	}
 
+	public void testScrollDownWithScrollRegion() {
+		withTerminalSized(2, 5).enterString("1\r\n2\r\n3\r\n4\r\n5").assertLinesAre("1 ", "2 ", "3 ", "4 ", "5 ");
+		enterString("\033[3r").enterString("\033[2T").assertLinesAre("1 ", "2 ", "  ", "  ", "3 ");
+	}
 }

app/src/test/java/com/termux/terminal/TerminalTest.java

@@ -92,6 +92,7 @@ public class TerminalTest extends TerminalTestCase {
 		assertEnteringStringGivesResponse("\033[6n", "\033[2;1R");
 	}
 
+	/** Test the cursor shape changes using DECSCUSR. */
 	public void testSetCursorStyle() throws Exception {
 		withTerminalSized(5, 5);
 		assertEquals(TerminalEmulator.CURSOR_STYLE_BLOCK, mTerminal.getCursorStyle());
@@ -257,4 +258,9 @@ public class TerminalTest extends TerminalTestCase {
 		withTerminalSized(3, 3).enterString("abc\r ").assertLinesAre(" bc", "   ", "   ").assertCursorAt(0, 1);
 	}
 
+    public void testTab() {
+        withTerminalSized(11, 2).enterString("01234567890\r\tXX").assertLinesAre("01234567XX0", "           ");
+        withTerminalSized(11, 2).enterString("01234567890\033[44m\r\tXX").assertLinesAre("01234567XX0", "           ");
+    }
+
 }

app/src/test/java/com/termux/terminal/UnicodeInputTest.java

@@ -12,6 +12,47 @@ public class UnicodeInputTest extends TerminalTestCase {
 		withTerminalSized(5, 5);
 		mTerminal.append(new byte[]{(byte) 0b11101111, (byte) 'a'}, 2);
 		assertLineIs(0, ((char) TerminalEmulator.UNICODE_REPLACEMENT_CHAR) + "a   ");
+
+		// https://code.google.com/p/chromium/issues/detail?id=212704
+		byte[] input = new byte[]{
+				(byte) 0x61, (byte) 0xF1,
+				(byte) 0x80, (byte) 0x80,
+				(byte) 0xe1, (byte) 0x80,
+				(byte) 0xc2, (byte) 0x62,
+				(byte) 0x80, (byte) 0x63,
+				(byte) 0x80, (byte) 0xbf,
+				(byte) 0x64
+		};
+		withTerminalSized(10, 2);
+		mTerminal.append(input, input.length);
+		assertLinesAre("a\uFFFD\uFFFD\uFFFDb\uFFFDc\uFFFD\uFFFDd", "          ");
+
+		// Surrogate pairs.
+		withTerminalSized(5, 2);
+		input = new byte[]{
+				(byte) 0xed, (byte) 0xa0,
+				(byte) 0x80, (byte) 0xed,
+				(byte) 0xad, (byte) 0xbf,
+				(byte) 0xed, (byte) 0xae,
+				(byte) 0x80, (byte) 0xed,
+				(byte) 0xbf, (byte) 0xbf
+		};
+		mTerminal.append(input, input.length);
+		assertLinesAre("\uFFFD\uFFFD\uFFFD\uFFFD ", "     ");
+
+		// https://bugzilla.mozilla.org/show_bug.cgi?id=746900: "with this patch 0xe0 0x80 is decoded as two U+FFFDs,
+		// but 0xe0 0xa0 is decoded as a single U+FFFD, and this is correct according to the "Best Practices", but IE
+		// and Chrome (Version 22.0.1229.94) decode both of them as two U+FFFDs. Opera 12.11 decodes both of them as
+		// one U+FFFD".
+		withTerminalSized(5, 2);
+		input = new byte[]{(byte) 0xe0, (byte) 0xa0, ' '};
+		mTerminal.append(input, input.length);
+		assertLinesAre("\uFFFD    ", "     ");
+
+		// withTerminalSized(5, 2);
+		// input = new byte[]{(byte) 0xe0, (byte) 0x80, 'a'};
+		// mTerminal.append(input, input.length);
+		// assertLinesAre("\uFFFD\uFFFDa  ", "     ");
 	}
 
 	public void testUnassignedCodePoint() throws UnsupportedEncodingException {

app/src/test/java/com/termux/terminal/WcWidthTest.java

@@ -39,6 +39,7 @@ public class WcWidthTest extends TestCase {
 	public void testCombining() {
 		assertWidthIs(0, 0x0302);
 		assertWidthIs(0, 0x0308);
+		assertWidthIs(0, 0x2060);
 	}
 
 	public void testWatch() {

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
-#Sat Nov 28 23:59:10 CET 2015
+#Tue Mar 15 00:24:33 CET 2016
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-2.9-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-2.12-bin.zip

gradlew.bat

@@ -1,90 +0,0 @@
-@if "%DEBUG%" == "" @echo off
-@rem ##########################################################################
-@rem
-@rem  Gradle startup script for Windows
-@rem
-@rem ##########################################################################
-
-@rem Set local scope for the variables with windows NT shell
-if "%OS%"=="Windows_NT" setlocal
-
-@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 DIRNAME=%~dp0
-if "%DIRNAME%" == "" set DIRNAME=.
-set APP_BASE_NAME=%~n0
-set APP_HOME=%DIRNAME%
-
-@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
-
-echo.
-echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
-echo.
-echo Please set the JAVA_HOME variable in your environment to match the
-echo location of your Java installation.
-
-goto fail
-
-:findJavaFromJavaHome
-set JAVA_HOME=%JAVA_HOME:"=%
-set JAVA_EXE=%JAVA_HOME%/bin/java.exe
-
-if exist "%JAVA_EXE%" goto init
-
-echo.
-echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
-echo.
-echo Please set the JAVA_HOME variable in your environment to match the
-echo location of your Java installation.
-
-goto fail
-
-:init
-@rem Get command-line arguments, handling Windowz variants
-
-if not "%OS%" == "Windows_NT" goto win9xME_args
-if "%@eval[2+2]" == "4" goto 4NT_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=%*
-goto execute
-
-:4NT_args
-@rem Get arguments from the 4NT Shell from JP Software
-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%
-
-:end
-@rem End local scope for the variables with windows NT shell
-if "%ERRORLEVEL%"=="0" goto mainEnd
-
-:fail
-rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
-rem the _cmd.exe /c_ return code!
-if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
-exit /b 1
-
-:mainEnd
-if "%OS%"=="Windows_NT" endlocal
-
-:omega