Bump version to 0.62

PS1 is not supposed to be an env var and should be shell-specific.
We will set it appropriately with the init files of the shells.

.gitignore

@@ -6,6 +6,7 @@
 build/
 *.apk
 *.so
+.externalNativeBuild
 
 # Crashlytics configuations
 com_crashlytics_export_strings.xml
@@ -32,6 +33,8 @@ local.properties
 .idea/scopes/scope_settings.xml
 .idea/vcs.xml
 .idea/dictionaries/
+.idea/caches/
+.idea/codeStyles/
 *.iml
 
 # OS-specific files

.idea/gradle.xml

@@ -10,14 +10,11 @@
           <set>
             <option value="$PROJECT_DIR$" />
             <option value="$PROJECT_DIR$/app" />
+            <option value="$PROJECT_DIR$/terminal-emulator" />
+            <option value="$PROJECT_DIR$/terminal-view" />
           </set>
         </option>
-        <option name="myModules">
+        <option name="resolveModulePerSourceSet" value="false" />
-          <set>
-            <option value="$PROJECT_DIR$" />
-            <option value="$PROJECT_DIR$/app" />
-          </set>
-        </option>
       </GradleProjectSettings>
     </option>
   </component>

.travis.yml

@@ -6,16 +6,21 @@ env:
   global:
     # The next declaration is the encrypted COVERITY_SCAN_TOKEN, created
     # via the "travis encrypt" command using the project repo's public key
-    - secure: "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"
+    - secure: "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"
 
 android:
   components:
     - platform-tools
     - tools
-    - build-tools-24.0.1
+    - build-tools-27.0.3
-    - android-24
+    - android-27
     - extra-android-m2repository
 
+before_install:
+  - git clone https://github.com/urho3d/android-ndk.git $HOME/android-ndk
+  - export ANDROID_NDK_HOME=$HOME/android-ndk
+  - yes | sdkmanager "platforms;android-27"
+
 script:
   - ./gradlew testDebugUnitTest
 
@@ -26,5 +31,5 @@ addons:
       description: "Terminal emulator and Linux environment for Android"
     notification_email: fredrik@fornwall.net
     build_command_prepend: "./gradlew clean"
-    build_command: "./gradlew assemble"
+    build_command: "./gradlew build"
-    branch_pattern: coverity_scan
+    branch_pattern: master

LICENSE.md

@@ -0,0 +1,3 @@
+Released under [the GPLv3 license](https://www.gnu.org/licenses/gpl.html).
+
+Contains code from `Terminal Emulator for Android` by which is released under [the Apache License 2.0](https://www.apache.org/licenses/).

README.md

@@ -3,24 +3,17 @@ 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](https://termux.com) is an Android terminal app and Linux environment.
-Termux is an Android terminal app and Linux environment.
 
 * [Termux on Google Play Store](https://play.google.com/store/apps/details?id=com.termux)
 * [Termux on F-Droid](https://f-droid.org/repository/browse/?fdid=com.termux)
-* [termux.com](http://termux.com)
+* [Termux Facebook](https://facebook.com/termux/)
-* [Termux Help](http://termux.com/help/)
-* [Termux app on GitHub](https://github.com/termux/termux-app)
-* [Termux packages on GitHub](https://github.com/termux/termux-packages)
 * [Termux Google+ community](http://termux.com/community/)
+* [Termux Help](http://termux.com/help/)
+* [Termux Twitter](http://twitter.com/termux/)
+* [Termux Wiki](https://wiki.termux.com/wiki/)  
 
-License
+Note that this repository is for the app itself (the user interface and the terminal emulation). For the packages installable inside the app, see [termux/termux-packages](https://github.com/termux/termux-packages)
-=======
-Released under [the GPLv3 license](https://www.gnu.org/licenses/gpl.html). Contains code from `Terminal Emulator for Android` which is released under [the Apache License 2.0](https://www.apache.org/licenses/).
-
-Building JNI libraries
-======================
-Execute the `build-jnilibs.sh` script to build the required JNI libraries.
 
 Terminal resources
 ==================

app/build.gradle

@@ -1,26 +1,20 @@
 apply plugin: 'com.android.application'
 
 android {
-    compileSdkVersion 24
+    compileSdkVersion 27
-    buildToolsVersion "24.0.1"
 
     dependencies {
-        compile 'com.android.support:support-annotations:24.1.1'
+        implementation 'com.android.support:support-annotations:27.1.1'
-        compile "com.android.support:support-v4:24.1.1"
+        implementation "com.android.support:support-core-ui:27.1.1"
+        implementation project(":terminal-view")
     }
 
     defaultConfig {
         applicationId "com.termux"
         minSdkVersion 21
-        targetSdkVersion 24
+        targetSdkVersion 27
-        versionCode 37
+        versionCode 62
-        versionName "0.37"
+        versionName "0.62"
-
-        ndk {
-            moduleName "libtermux"
-            abiFilters "armeabi-v7a", "arm64-v8a", "x86", "x86_64"
-            cFlags "-std=c11 -Wall -Wextra -Os -fno-stack-protector -nostdlib -Wl,--gc-sections"
-        }
     }
 
     buildTypes {
@@ -33,5 +27,5 @@ android {
 }
 
 dependencies {
-    testCompile 'junit:junit:4.12'
+    testImplementation 'junit:junit:4.12'
 }

app/proguard-rules.pro

@@ -7,11 +7,5 @@
 # For more details, see
 #   http://developer.android.com/guide/developing/tools/proguard.html
 
-# Add any project specific keep options here:
+-renamesourcefileattribute SourceFile
-
+-keepattributes SourceFile,LineNumberTable
-# If your project uses WebView with JS, uncomment the following
-# and specify the fully qualified class name to the JavaScript interface
-# class:
-#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
-#   public *;
-#}

app/src/androidTest/java/com/termux/ApplicationTest.java

@@ -1,13 +0,0 @@
-package com.termux;
-
-import android.app.Application;
-import android.test.ApplicationTestCase;
-
-/**
- * <a href="http://d.android.com/tools/testing/testing_android.html">Testing Fundamentals</a>
- */
-public class ApplicationTest extends ApplicationTestCase<Application> {
-    public ApplicationTest() {
-        super(Application.class);
-    }
-}

app/src/main/AndroidManifest.xml

@@ -1,4 +1,5 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
     package="com.termux"
     android:installLocation="internalOnly"
     android:sharedUserId="com.termux"
@@ -13,18 +14,25 @@
     <uses-permission android:name="android.permission.VIBRATE" />
 
     <application
+        android:extractNativeLibs="true"
         android:allowBackup="true"
         android:fullBackupContent="@xml/backupscheme"
-        android:icon="@drawable/ic_launcher"
+        android:icon="@mipmap/ic_launcher"
+        android:roundIcon="@mipmap/ic_launcher_round"
         android:banner="@drawable/banner"
         android:label="@string/application_name"
         android:theme="@style/Theme.Termux"
         android:supportsRtl="false" >
 
+        <!-- This (or rather, value 2.1 or higher) is needed to make the Samsung Galaxy S8
+             mark the app with "This app is optimized to run in full screen." -->
+        <meta-data android:name="android.max_aspect" android:value="10.0" />
+
         <activity
             android:name="com.termux.app.TermuxActivity"
             android:configChanges="keyboard|keyboardHidden|orientation|screenSize"
             android:launchMode="singleTask"
+            android:resizeableActivity="true"
             android:windowSoftInputMode="adjustResize|stateAlwaysVisible" >
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
@@ -34,6 +42,7 @@
                 <action android:name="android.intent.action.MAIN" />
                 <category android:name="android.intent.category.LEANBACK_LAUNCHER" />
             </intent-filter>
+            <meta-data android:name="android.app.shortcuts" android:resource="@xml/shortcuts" />
         </activity>
 
         <activity
@@ -41,6 +50,7 @@
             android:exported="false"
             android:theme="@android:style/Theme.Material.Light.DarkActionBar"
             android:parentActivityName=".app.TermuxActivity"
+            android:resizeableActivity="true"
             android:label="@string/application_name" />
 
         <activity
@@ -48,6 +58,7 @@
             android:label="@string/application_name"
             android:taskAffinity="com.termux.filereceiver"
             android:excludeFromRecents="true"
+            android:resizeableActivity="true"
             android:noHistory="true">
             <!-- Accept multiple file types when sending. -->
             <intent-filter>
@@ -62,7 +73,7 @@
                 <data android:mimeType="video/*" />
             </intent-filter>
             <!-- Be more restrictive for viewing files, restricting ourselves to text files. -->
-            <intent-filter>
+            <intent-filter tools:ignore="AppLinkUrlError">
                 <action android:name="android.intent.action.VIEW"/>
                 <category android:name="android.intent.category.DEFAULT" />
                 <data android:mimeType="text/*" />
@@ -73,6 +84,18 @@
             </intent-filter>
         </activity>
 
+        <activity-alias
+            android:name=".HomeActivity"
+            android:targetActivity="com.termux.app.TermuxActivity">
+
+            <!-- Launch activity automatically on boot on Android Things devices -->
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN"/>
+                <category android:name="android.intent.category.IOT_LAUNCHER"/>
+                <category android:name="android.intent.category.DEFAULT"/>
+            </intent-filter>
+        </activity-alias>
+
         <provider
             android:name=".filepicker.TermuxDocumentsProvider"
             android:authorities="com.termux.documents"
@@ -88,6 +111,15 @@
             android:name="com.termux.app.TermuxService"
             android:exported="false" />
 
+        <receiver android:name=".app.TermuxOpenReceiver" />
+
+        <provider android:authorities="com.termux.files"
+                  android:readPermission="android.permission.permRead"
+                  android:exported="true"
+                  android:grantUriPermissions="true"
+                  android:name="com.termux.app.TermuxOpenReceiver$ContentProvider" />
+
+        <meta-data android:name="com.sec.android.support.multiwindow" android:value="true" />
     </application>
 
 </manifest>

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

@@ -4,58 +4,71 @@ import android.util.Log;
 
 import java.io.BufferedReader;
 import java.io.File;
+import java.io.FileInputStream;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.InputStreamReader;
+import java.lang.reflect.Field;
 import java.nio.charset.StandardCharsets;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
 
 /**
  * A background job launched by Termux.
  */
 public final class BackgroundJob {
 
-    private static final String LOG_TAG = "termux-background";
+    private static final String LOG_TAG = "termux-task";
 
     final Process mProcess;
 
-    public BackgroundJob(File cwd, File fileToExecute, String[] args) throws IOException {
+    public BackgroundJob(String cwd, String fileToExecute, final String[] args, final TermuxService service) {
-        String[] env = buildEnvironment(false, cwd.getAbsolutePath());
+        String[] env = buildEnvironment(false, cwd);
+        if (cwd == null) cwd = TermuxService.HOME_PATH;
 
-        String[] progArray = new String[args.length + 1];
+        final String[] progArray = setupProcessArgs(fileToExecute, args);
+        final String processDescription = Arrays.toString(progArray);
 
-        mProcess = Runtime.getRuntime().exec(progArray, env, cwd);
+        Process process;
-
+        try {
-        new Thread() {
+            process = Runtime.getRuntime().exec(progArray, env, new File(cwd));
-            @Override
+        } catch (IOException e) {
-            public void run() {
+            mProcess = null;
-                while (true) {
+            // TODO: Visible error message?
-                    try {
+            Log.e(LOG_TAG, "Failed running background job: " + processDescription, e);
-                        int exitCode = mProcess.waitFor();
+            return;
-                        if (exitCode == 0) {
+        }
-                            Log.i(LOG_TAG, "exited normally");
+
-                            return;
+        mProcess = process;
-                        } else {
+        final int pid = getPid(mProcess);
-                            Log.i(LOG_TAG, "exited with exit code: " + exitCode);
-                        }
-                    } catch (InterruptedException e) {
-                        // Ignore.
-                    }
-                }
-            }
-        }.start();
 
         new Thread() {
             @Override
             public void run() {
+                Log.i(LOG_TAG, "[" + pid + "] starting: " + processDescription);
                 InputStream stdout = mProcess.getInputStream();
                 BufferedReader reader = new BufferedReader(new InputStreamReader(stdout, StandardCharsets.UTF_8));
                 String line;
                 try {
                     // FIXME: Long lines.
                     while ((line = reader.readLine()) != null) {
-                        Log.i(LOG_TAG, line);
+                        Log.i(LOG_TAG, "[" + pid + "] stdout: " + line);
                     }
                 } catch (IOException e) {
+                    Log.e(LOG_TAG, "Error reading output", e);
+                }
+
+                try {
+                    int exitCode = mProcess.waitFor();
+                    service.onBackgroundJobExited(BackgroundJob.this);
+                    if (exitCode == 0) {
+                        Log.i(LOG_TAG, "[" + pid + "] exited normally");
+                    } else {
+                        Log.w(LOG_TAG, "[" + pid + "] exited with code: " + exitCode);
+                    }
+                } catch (InterruptedException e) {
                     // Ignore.
                 }
             }
@@ -71,7 +84,7 @@ public final class BackgroundJob {
                 try {
                     // FIXME: Long lines.
                     while ((line = reader.readLine()) != null) {
-                        Log.e(LOG_TAG, line);
+                        Log.i(LOG_TAG, "[" + pid + "] stderr: " + line);
                     }
                 } catch (IOException e) {
                     // Ignore.
@@ -80,7 +93,7 @@ public final class BackgroundJob {
         };
     }
 
-    public String[] buildEnvironment(boolean failSafe, String cwd) {
+    public static String[] buildEnvironment(boolean failSafe, String cwd) {
         new File(TermuxService.HOME_PATH).mkdirs();
 
         if (cwd == null) cwd = TermuxService.HOME_PATH;
@@ -93,20 +106,87 @@ public final class BackgroundJob {
         // 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) {
             // Keep the default path so that system binaries can be used in the failsafe session.
             final String pathEnv = "PATH=" + System.getenv("PATH");
             return new String[]{termEnv, homeEnv, prefixEnv, androidRootEnv, androidDataEnv, pathEnv, externalStorageEnv};
         } else {
-            final String ps1Env = "PS1=$ ";
             final String ldEnv = "LD_LIBRARY_PATH=" + TermuxService.PREFIX_PATH + "/lib";
             final String langEnv = "LANG=en_US.UTF-8";
             final String pathEnv = "PATH=" + TermuxService.PREFIX_PATH + "/bin:" + TermuxService.PREFIX_PATH + "/bin/applets";
             final String pwdEnv = "PWD=" + cwd;
+            final String tmpdirEnv = "TMPDIR=" + TermuxService.PREFIX_PATH + "/tmp";
 
-            return new String[]{termEnv, homeEnv, prefixEnv, ps1Env, ldEnv, langEnv, pathEnv, pwdEnv, androidRootEnv, androidDataEnv, externalStorageEnv};
+            return new String[]{termEnv, homeEnv, prefixEnv, ldEnv, langEnv, pathEnv, pwdEnv, androidRootEnv, androidDataEnv, externalStorageEnv, tmpdirEnv};
         }
     }
 
+    public static int getPid(Process p) {
+        try {
+            Field f = p.getClass().getDeclaredField("pid");
+            f.setAccessible(true);
+            try {
+                return f.getInt(p);
+            } finally {
+                f.setAccessible(false);
+            }
+        } catch (Throwable e) {
+            return -1;
+        }
+    }
+
+    static String[] setupProcessArgs(String fileToExecute, String[] args) {
+        // The file to execute may either be:
+        // - An elf file, in which we execute it directly.
+        // - A script file without shebang, which we execute with our standard shell $PREFIX/bin/sh instead of the
+        //   system /system/bin/sh. The system shell may vary and may not work at all due to LD_LIBRARY_PATH.
+        // - A file with shebang, which we try to handle with e.g. /bin/foo -> $PREFIX/bin/foo.
+        String interpreter = null;
+        try {
+            File file = new File(fileToExecute);
+            try (FileInputStream in = new FileInputStream(file)) {
+                byte[] buffer = new byte[256];
+                int bytesRead = in.read(buffer);
+                if (bytesRead > 4) {
+                    if (buffer[0] == 0x7F && buffer[1] == 'E' && buffer[2] == 'L' && buffer[3] == 'F') {
+                        // Elf file, do nothing.
+                    } else if (buffer[0] == '#' && buffer[1] == '!') {
+                        // Try to parse shebang.
+                        StringBuilder builder = new StringBuilder();
+                        for (int i = 2; i < bytesRead; i++) {
+                            char c = (char) buffer[i];
+                            if (c == ' ' || c == '\n') {
+                                if (builder.length() == 0) {
+                                    // Skip whitespace after shebang.
+                                } else {
+                                    // End of shebang.
+                                    String executable = builder.toString();
+                                    if (executable.startsWith("/usr") || executable.startsWith("/bin")) {
+                                        String[] parts = executable.split("/");
+                                        String binary = parts[parts.length - 1];
+                                        interpreter = TermuxService.PREFIX_PATH + "/bin/" + binary;
+                                    }
+                                    break;
+                                }
+                            } else {
+                                builder.append(c);
+                            }
+                        }
+                    } else {
+                        // No shebang and no ELF, use standard shell.
+                        interpreter = TermuxService.PREFIX_PATH + "/bin/sh";
+                    }
+                }
+            }
+        } catch (IOException e) {
+            // Ignore.
+        }
+
+        List<String> result = new ArrayList<>();
+        if (interpreter != null) result.add(interpreter);
+        result.add(fileToExecute);
+        if (args != null) Collections.addAll(result, args);
+        return result.toArray(new String[result.size()]);
+    }
+
 }

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

@@ -11,8 +11,6 @@ import android.widget.EditText;
 import android.widget.LinearLayout;
 import android.widget.TextView;
 
-import android.R;
-
 public final class DialogUtils {
 
     public interface TextSetListener {
@@ -72,7 +70,7 @@ public final class DialogUtils {
         }
 
         if (onNegative == null) {
-            builder.setNegativeButton(R.string.cancel, null);
+            builder.setNegativeButton(android.R.string.cancel, null);
         } else {
             builder.setNegativeButton(negativeButtonText, new DialogInterface.OnClickListener() {
                 @Override

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

@@ -2,11 +2,19 @@ package com.termux.app;
 
 import android.content.Context;
 import android.util.AttributeSet;
+
+import java.util.concurrent.Executors;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.ScheduledExecutorService;
+
 import android.view.Gravity;
+import android.view.HapticFeedbackConstants;
 import android.view.KeyEvent;
+import android.view.MotionEvent;
 import android.view.View;
 import android.widget.Button;
 import android.widget.GridLayout;
+import android.widget.PopupWindow;
 import android.widget.ToggleButton;
 
 import com.termux.R;
@@ -20,6 +28,8 @@ import com.termux.view.TerminalView;
 public final class ExtraKeysView extends GridLayout {
 
     private static final int TEXT_COLOR = 0xFFFFFFFF;
+    private static final int BUTTON_COLOR = 0xFF000000;
+    private static final int BUTTON_PRESSED_COLOR = 0xFF888888;
 
     public ExtraKeysView(Context context, AttributeSet attrs) {
         super(context, attrs);
@@ -37,16 +47,28 @@ public final class ExtraKeysView extends GridLayout {
             case "TAB":
                 keyCode = KeyEvent.KEYCODE_TAB;
                 break;
-            case "▲":
+            case "HOME":
+                keyCode = KeyEvent.KEYCODE_MOVE_HOME;
+                break;
+            case "END":
+                keyCode = KeyEvent.KEYCODE_MOVE_END;
+                break;
+            case "PGUP":
+                keyCode = KeyEvent.KEYCODE_PAGE_UP;
+                break;
+            case "PGDN":
+                keyCode = KeyEvent.KEYCODE_PAGE_DOWN;
+                break;
+            case "↑":
                 keyCode = KeyEvent.KEYCODE_DPAD_UP;
                 break;
-            case "◀":
+            case "←":
                 keyCode = KeyEvent.KEYCODE_DPAD_LEFT;
                 break;
-            case "▶":
+            case "→":
                 keyCode = KeyEvent.KEYCODE_DPAD_RIGHT;
                 break;
-            case "▼":
+            case "↓":
                 keyCode = KeyEvent.KEYCODE_DPAD_DOWN;
                 break;
             case "―":
@@ -56,11 +78,11 @@ public final class ExtraKeysView extends GridLayout {
                 chars = keyName;
         }
 
+        TerminalView terminalView = view.findViewById(R.id.terminal_view);
         if (keyCode > 0) {
-            view.dispatchKeyEvent(new KeyEvent(KeyEvent.ACTION_DOWN, keyCode));
+            terminalView.onKeyDown(keyCode, new KeyEvent(KeyEvent.ACTION_UP, keyCode));
-            view.dispatchKeyEvent(new KeyEvent(KeyEvent.ACTION_UP, keyCode));
+//          view.dispatchKeyEvent(new KeyEvent(KeyEvent.ACTION_UP, keyCode));
         } else {
-            TerminalView terminalView = (TerminalView) view.findViewById(R.id.terminal_view);
             TerminalSession session = terminalView.getCurrentSession();
             if (session != null) session.write(chars);
         }
@@ -69,6 +91,9 @@ public final class ExtraKeysView extends GridLayout {
     private ToggleButton controlButton;
     private ToggleButton altButton;
     private ToggleButton fnButton;
+    private ScheduledExecutorService scheduledExecutor;
+    private PopupWindow popupWindow;
+    private int longPressCount;
 
     public boolean readControlButton() {
         if (controlButton.isPressed()) return true;
@@ -100,24 +125,47 @@ public final class ExtraKeysView extends GridLayout {
         return result;
     }
 
+    void popup(View view, String text) {
+        int width = view.getMeasuredWidth();
+        int height = view.getMeasuredHeight();
+        Button button = new Button(getContext(), null, android.R.attr.buttonBarButtonStyle);
+        button.setText(text);
+        button.setTextColor(TEXT_COLOR);
+        button.setPadding(0, 0, 0, 0);
+        button.setMinHeight(0);
+        button.setMinWidth(0);
+        button.setMinimumWidth(0);
+        button.setMinimumHeight(0);
+        button.setWidth(width);
+        button.setHeight(height);
+        button.setBackgroundColor(BUTTON_PRESSED_COLOR);
+        popupWindow = new PopupWindow(this);
+        popupWindow.setWidth(LayoutParams.WRAP_CONTENT);
+        popupWindow.setHeight(LayoutParams.WRAP_CONTENT);
+        popupWindow.setContentView(button);
+        popupWindow.setOutsideTouchable(true);
+        popupWindow.setFocusable(false);
+        popupWindow.showAsDropDown(view, 0, -2 * height);
+    }
+
     void reload() {
         altButton = controlButton = null;
         removeAllViews();
 
         String[][] buttons = {
-            {"ESC", "CTRL", "ALT", "TAB", "―", "/", "|"}
+            {"ESC", "/", "―", "HOME", "↑", "END", "PGUP"},
+            {"TAB", "CTRL", "ALT", "←", "↓", "→", "PGDN"}
         };
 
         final int rows = buttons.length;
-        final int cols = buttons[0].length;
+        final int[] cols = {buttons[0].length, buttons[1].length};
 
         setRowCount(rows);
-        setColumnCount(cols);
+        setColumnCount(cols[0]);
 
         for (int row = 0; row < rows; row++) {
-            for (int col = 0; col < cols; col++) {
+            for (int col = 0; col < cols[row]; col++) {
                 final String buttonText = buttons[row][col];
-
                 Button button;
                 switch (buttonText) {
                     case "CTRL":
@@ -139,11 +187,13 @@ public final class ExtraKeysView extends GridLayout {
 
                 button.setText(buttonText);
                 button.setTextColor(TEXT_COLOR);
+                button.setPadding(0, 0, 0, 0);
 
                 final Button finalButton = button;
                 button.setOnClickListener(new OnClickListener() {
                     @Override
                     public void onClick(View v) {
+                        finalButton.performHapticFeedback(HapticFeedbackConstants.KEYBOARD_TAP);
                         View root = getRootView();
                         switch (buttonText) {
                             case "CTRL":
@@ -160,13 +210,70 @@ public final class ExtraKeysView extends GridLayout {
                     }
                 });
 
-                GridLayout.LayoutParams param = new GridLayout.LayoutParams();
+                button.setOnTouchListener(new OnTouchListener() {
-                param.height = param.width = 0;
+                    @Override
-                param.rightMargin = param.topMargin = 0;
+                    public boolean onTouch(View v, MotionEvent event) {
+                        final View root = getRootView();
+                        switch (event.getAction()) {
+                            case MotionEvent.ACTION_DOWN:
+                                longPressCount = 0;
+                                v.setBackgroundColor(BUTTON_PRESSED_COLOR);
+                                if ("↑↓←→".contains(buttonText)) {
+                                    scheduledExecutor = Executors.newSingleThreadScheduledExecutor();
+                                    scheduledExecutor.scheduleWithFixedDelay(new Runnable() {
+                                        @Override
+                                        public void run() {
+                                            longPressCount++;
+                                            sendKey(root, buttonText);
+                                        }
+                                    }, 400, 80, TimeUnit.MILLISECONDS);
+                                }
+                                return true;
+                            case MotionEvent.ACTION_MOVE:
+                                if ("―/".contains(buttonText)) {
+                                    if (popupWindow == null && event.getY() < 0) {
+                                        v.setBackgroundColor(BUTTON_COLOR);
+                                        String text = "―".equals(buttonText) ? "|" : "\\";
+                                        popup(v, text);
+                                    }
+                                    if (popupWindow != null && event.getY() > 0) {
+                                        v.setBackgroundColor(BUTTON_PRESSED_COLOR);
+                                        popupWindow.dismiss();
+                                        popupWindow = null;
+                                    }
+                                }
+                                return true;
+                            case MotionEvent.ACTION_UP:
+                            case MotionEvent.ACTION_CANCEL:
+                                v.setBackgroundColor(BUTTON_COLOR);
+                                if (scheduledExecutor != null) {
+                                    scheduledExecutor.shutdownNow();
+                                    scheduledExecutor = null;
+                                }
+                                if (longPressCount == 0) {
+                                    if (popupWindow != null && "―/".contains(buttonText)) {
+                                        popupWindow.setContentView(null);
+                                        popupWindow.dismiss();
+                                        popupWindow = null;
+                                        sendKey(root, "―".equals(buttonText) ? "|" : "\\");
+                                    } else {
+                                        v.performClick();
+                                    }
+                                }
+                                return true;
+                            default:
+                                return true;
+                        }
+
+                    }
+                });
+
+                LayoutParams param = new GridLayout.LayoutParams();
+                param.width = param.height = 0;
+                param.setMargins(0, 0, 0, 0);
                 param.setGravity(Gravity.LEFT);
-                float weight = "▲▼◀▶".contains(buttonText) ? 0.7f : 1.f;
+                param.columnSpec = GridLayout.spec(col, GridLayout.FILL, 1.f);
-                param.columnSpec = GridLayout.spec(col, weight);
+                param.rowSpec = GridLayout.spec(row, GridLayout.FILL, 1.f);
-                param.rowSpec = GridLayout.spec(row, 1.f);
                 button.setLayoutParams(param);
 
                 addView(button);

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

@@ -1,67 +0,0 @@
-package com.termux.app;
-
-import android.graphics.Color;
-import android.graphics.drawable.ColorDrawable;
-import android.os.Build;
-import android.view.View;
-
-import com.termux.R;
-
-/**
- * Utility to manage full screen immersive mode.
- * <p/>
- * See https://code.google.com/p/android/issues/detail?id=5497
- */
-final class FullScreenHelper {
-
-    private boolean mEnabled = false;
-    final TermuxActivity mActivity;
-
-    public FullScreenHelper(TermuxActivity activity) {
-        this.mActivity = activity;
-    }
-
-    public void setImmersive(boolean enabled) {
-        if (enabled == mEnabled) return;
-        mEnabled = enabled;
-
-        View decorView = mActivity.getWindow().getDecorView();
-
-        if (enabled) {
-            decorView.setOnSystemUiVisibilityChangeListener
-                (new View.OnSystemUiVisibilityChangeListener() {
-                    @Override
-                    public void onSystemUiVisibilityChange(int visibility) {
-                        if ((visibility & View.SYSTEM_UI_FLAG_FULLSCREEN) == 0) {
-                            if (mActivity.mSettings.isShowExtraKeys()) {
-                                mActivity.findViewById(R.id.viewpager).setVisibility(View.VISIBLE);
-                            }
-                            setImmersiveMode();
-                        } else {
-                            mActivity.findViewById(R.id.viewpager).setVisibility(View.GONE);
-                        }
-                    }
-                });
-            setImmersiveMode();
-        } else {
-            decorView.setSystemUiVisibility(View.SYSTEM_UI_FLAG_VISIBLE);
-            decorView.setOnSystemUiVisibilityChangeListener(null);
-        }
-    }
-
-    private static boolean isColorLight(int color) {
-        double darkness = 1 - (0.299 * Color.red(color) + 0.587 * Color.green(color) + 0.114 * Color.blue(color)) / 255;
-        return darkness < 0.5;
-    }
-
-    void setImmersiveMode() {
-        int flags = View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
-            | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY
-            | View.SYSTEM_UI_FLAG_FULLSCREEN;
-        int color = ((ColorDrawable) mActivity.getWindow().getDecorView().getBackground()).getColor();
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M && isColorLight(color))
-            flags |= View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR;
-        mActivity.getWindow().getDecorView().setSystemUiVisibility(flags);
-    }
-
-}

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

@@ -73,6 +73,7 @@ import java.io.InputStream;
 import java.util.Arrays;
 import java.util.Collections;
 import java.util.LinkedHashSet;
+import java.util.List;
 import java.util.Properties;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
@@ -95,7 +96,6 @@ public final class TermuxActivity extends Activity implements ServiceConnection
     private static final int CONTEXTMENU_KILL_PROCESS_ID = 4;
     private static final int CONTEXTMENU_RESET_TERMINAL_ID = 5;
     private static final int CONTEXTMENU_STYLING_ID = 6;
-    private static final int CONTEXTMENU_TOGGLE_FULLSCREEN_ID = 7;
     private static final int CONTEXTMENU_HELP_ID = 8;
 
     private static final int MAX_SESSIONS = 8;
@@ -111,8 +111,6 @@ public final class TermuxActivity extends Activity implements ServiceConnection
 
     ExtraKeysView mExtraKeysView;
 
-    final FullScreenHelper mFullScreenHelper = new FullScreenHelper(this);
-
     TermuxPreferences mSettings;
 
     /**
@@ -157,7 +155,6 @@ public final class TermuxActivity extends Activity implements ServiceConnection
 
     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");
 
@@ -212,14 +209,13 @@ public final class TermuxActivity extends Activity implements ServiceConnection
         mSettings = new TermuxPreferences(this);
 
         setContentView(R.layout.drawer_layout);
-        mTerminalView = (TerminalView) findViewById(R.id.terminal_view);
+        mTerminalView = findViewById(R.id.terminal_view);
-        mTerminalView.setOnKeyListener(new TermuxKeyListener(this));
+        mTerminalView.setOnKeyListener(new TermuxViewClient(this));
 
         mTerminalView.setTextSize(mSettings.getFontSize());
-        mFullScreenHelper.setImmersive(mSettings.isFullScreen());
         mTerminalView.requestFocus();
 
-        final ViewPager viewPager = (ViewPager) findViewById(R.id.viewpager);
+        final ViewPager viewPager = findViewById(R.id.viewpager);
         if (mSettings.isShowExtraKeys()) viewPager.setVisibility(View.VISIBLE);
 
         viewPager.setAdapter(new PagerAdapter() {
@@ -229,25 +225,34 @@ public final class TermuxActivity extends Activity implements ServiceConnection
             }
 
             @Override
-            public boolean isViewFromObject(View view, Object object) {
+            public boolean isViewFromObject(@NonNull View view, @NonNull Object object) {
                 return view == object;
             }
 
+            @NonNull
             @Override
-            public Object instantiateItem(ViewGroup collection, int position) {
+            public Object instantiateItem(@NonNull ViewGroup collection, int position) {
                 LayoutInflater inflater = LayoutInflater.from(TermuxActivity.this);
                 View layout;
                 if (position == 0) {
                     layout = mExtraKeysView = (ExtraKeysView) inflater.inflate(R.layout.extra_keys_main, collection, false);
                 } else {
                     layout = inflater.inflate(R.layout.extra_keys_right, collection, false);
-                    final EditText editText = (EditText) layout.findViewById(R.id.text_input);
+                    final EditText editText = layout.findViewById(R.id.text_input);
                     editText.setOnEditorActionListener(new TextView.OnEditorActionListener() {
                         @Override
                         public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
-                            String s = editText.getText().toString() + "\n";
+                            TerminalSession session = getCurrentTermSession();
-                            getCurrentTermSession().write(s);
+                            if (session != null) {
-                            editText.setText("");
+                                if (session.isRunning()) {
+                                    String textToSend = editText.getText().toString();
+                                    if (textToSend.length() == 0) textToSend = "\n";
+                                    session.write(textToSend);
+                                } else {
+                                    removeFinishedSession(session);
+                                }
+                                editText.setText("");
+                            }
                             return true;
                         }
                     });
@@ -257,7 +262,7 @@ public final class TermuxActivity extends Activity implements ServiceConnection
             }
 
             @Override
-            public void destroyItem(ViewGroup collection, int position, Object view) {
+            public void destroyItem(@NonNull ViewGroup collection, int position, @NonNull Object view) {
                 collection.removeView((View) view);
             }
         });
@@ -268,7 +273,7 @@ public final class TermuxActivity extends Activity implements ServiceConnection
                 if (position == 0) {
                     mTerminalView.requestFocus();
                 } else {
-                    final EditText editText = (EditText) viewPager.findViewById(R.id.text_input);
+                    final EditText editText = viewPager.findViewById(R.id.text_input);
                     if (editText != null) editText.requestFocus();
                 }
             }
@@ -332,7 +337,7 @@ public final class TermuxActivity extends Activity implements ServiceConnection
     }
 
     void toggleShowExtraKeys() {
-        final ViewPager viewPager = (ViewPager) findViewById(R.id.viewpager);
+        final ViewPager viewPager = findViewById(R.id.viewpager);
         final boolean showNow = mSettings.toggleShowExtraKeys(TermuxActivity.this);
         viewPager.setVisibility(showNow ? View.VISIBLE : View.GONE);
         if (showNow && viewPager.getCurrentItem() == 1) {
@@ -389,27 +394,26 @@ public final class TermuxActivity extends Activity implements ServiceConnection
             @Override
             public void onClipboardText(TerminalSession session, String text) {
                 if (!mIsVisible) return;
-                showToast("Clipboard:\n\"" + text + "\"", false);
                 ClipboardManager clipboard = (ClipboardManager) getSystemService(Context.CLIPBOARD_SERVICE);
                 clipboard.setPrimaryClip(new ClipData(null, new String[]{"text/plain"}, new ClipData.Item(text)));
             }
 
             @Override
             public void onBell(TerminalSession session) {
-                if (mIsVisible) {
+                if (!mIsVisible) return;
-                    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;
-                        case TermuxPreferences.BELL_IGNORE:
-                            // Ignore the bell character.
-                            break;
-                    }
 
+                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;
+                    case TermuxPreferences.BELL_IGNORE:
+                        // Ignore the bell character.
+                        break;
                 }
+
             }
 
             @Override
@@ -418,13 +422,14 @@ public final class TermuxActivity extends Activity implements ServiceConnection
             }
         };
 
-        ListView listView = (ListView) findViewById(R.id.left_drawer_list);
+        ListView listView = findViewById(R.id.left_drawer_list);
         mListViewAdapter = new ArrayAdapter<TerminalSession>(getApplicationContext(), R.layout.line_in_drawer, mTermService.getSessions()) {
             final StyleSpan boldSpan = new StyleSpan(Typeface.BOLD);
             final StyleSpan italicSpan = new StyleSpan(Typeface.ITALIC);
 
+            @NonNull
             @Override
-            public View getView(int position, View convertView, ViewGroup parent) {
+            public View getView(int position, View convertView, @NonNull ViewGroup parent) {
                 View row = convertView;
                 if (row == null) {
                     LayoutInflater inflater = getLayoutInflater();
@@ -434,7 +439,7 @@ public final class TermuxActivity extends Activity implements ServiceConnection
                 TerminalSession sessionAtRow = getItem(position);
                 boolean sessionRunning = sessionAtRow.isRunning();
 
-                TextView firstLineView = (TextView) row.findViewById(R.id.row_line);
+                TextView firstLineView = row.findViewById(R.id.row_line);
 
                 String name = sessionAtRow.mSessionName;
                 String sessionTitle = sessionAtRow.getTitle();
@@ -485,17 +490,6 @@ public final class TermuxActivity extends Activity implements ServiceConnection
                     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)
-                                    .setCancelable(false).setPositiveButton(android.R.string.ok, null)
-                                    .setNegativeButton(R.string.welcome_dialog_dont_show_again_button, new DialogInterface.OnClickListener() {
-                                        @Override
-                                        public void onClick(DialogInterface dialog, int which) {
-                                            TermuxPreferences.disableWelcomeDialog(TermuxActivity.this);
-                                            dialog.dismiss();
-                                        }
-                                    }).show();
-                            }
                             addNewSession(false, null);
                         } catch (WindowManager.BadTokenException e) {
                             // Activity finished - ignore.
@@ -507,7 +501,13 @@ public final class TermuxActivity extends Activity implements ServiceConnection
                 finish();
             }
         } else {
-            switchToSession(getStoredCurrentSessionOrLast());
+            Intent i = getIntent();
+            if (i != null && Intent.ACTION_RUN.equals(i.getAction())) {
+                // Android 7.1 app shortcut from res/xml/shortcuts.xml.
+                addNewSession(false, null);
+            } else {
+                switchToSession(getStoredCurrentSessionOrLast());
+            }
         }
     }
 
@@ -528,16 +528,15 @@ public final class TermuxActivity extends Activity implements ServiceConnection
             @Override
             public void onTextSet(String text) {
                 sessionToRename.mSessionName = text;
+                mListViewAdapter.notifyDataSetChanged();
             }
         }, -1, null, -1, null, null);
     }
 
     @Override
     public void onServiceDisconnected(ComponentName name) {
-        if (mTermService != null) {
+        // Respect being stopped from the TermuxService notification action.
-            // Respect being stopped from the TermuxService notification action.
+        finish();
-            finish();
-        }
     }
 
     @Nullable
@@ -641,7 +640,7 @@ public final class TermuxActivity extends Activity implements ServiceConnection
         final int indexOfSession = mTermService.getSessions().indexOf(session);
         showToast(toToastTitle(session), false);
         mListViewAdapter.notifyDataSetChanged();
-        final ListView lv = ((ListView) findViewById(R.id.left_drawer_list));
+        final ListView lv = findViewById(R.id.left_drawer_list);
         lv.setItemChecked(indexOfSession, true);
         lv.smoothScrollToPosition(indexOfSession);
     }
@@ -655,7 +654,6 @@ public final class TermuxActivity extends Activity implements ServiceConnection
         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, getResources().getString(R.string.kill_process, getCurrentTermSession().getPid())).setEnabled(currentSession.isRunning());
-        menu.add(Menu.NONE, CONTEXTMENU_TOGGLE_FULLSCREEN_ID, Menu.NONE, R.string.toggle_fullscreen).setCheckable(true).setChecked(mSettings.isFullScreen());
         menu.add(Menu.NONE, CONTEXTMENU_STYLING_ID, Menu.NONE, R.string.style_terminal);
         menu.add(Menu.NONE, CONTEXTMENU_HELP_ID, Menu.NONE, R.string.help);
     }
@@ -789,11 +787,8 @@ public final class TermuxActivity extends Activity implements ServiceConnection
                             }
                         }).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;
@@ -809,12 +804,6 @@ public final class TermuxActivity extends Activity implements ServiceConnection
         }
     }
 
-    void toggleImmersive() {
-        boolean newValue = !mSettings.isFullScreen();
-        mSettings.setFullScreen(this, newValue);
-        mFullScreenHelper.setImmersive(newValue);
-    }
-
     void changeFontSize(boolean increase) {
         mSettings.changeFontSize(this, increase);
         mTerminalView.setTextSize(mSettings.getFontSize());
@@ -833,9 +822,8 @@ public final class TermuxActivity extends Activity implements ServiceConnection
     public TerminalSession getStoredCurrentSessionOrLast() {
         TerminalSession stored = TermuxPreferences.getCurrentSession(this);
         if (stored != null) return stored;
-        int numberOfSessions = mTermService.getSessions().size();
+        List<TerminalSession> sessions = mTermService.getSessions();
-        if (numberOfSessions == 0) return null;
+        return sessions.isEmpty() ? null : sessions.get(sessions.size() - 1);
-        return mTermService.getSessions().get(numberOfSessions - 1);
     }
 
     /** Show a toast and dismiss the last one if still visible. */
@@ -846,4 +834,21 @@ public final class TermuxActivity extends Activity implements ServiceConnection
         mLastToast.show();
     }
 
+    public void removeFinishedSession(TerminalSession finishedSession) {
+        // Return pressed with finished session - remove it.
+        TermuxService service = mTermService;
+
+        int index = service.removeTermSession(finishedSession);
+        mListViewAdapter.notifyDataSetChanged();
+        if (mTermService.getSessions().isEmpty()) {
+            // There are no sessions to show, so finish the activity.
+            finish();
+        } else {
+            if (index >= service.getSessions().size()) {
+                index = service.getSessions().size() - 1;
+            }
+            switchToSession(service.getSessions().get(index));
+        }
+    }
+
 }

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

@@ -39,7 +39,7 @@ public final class TermuxHelpActivity extends Activity {
         mWebView.setWebViewClient(new WebViewClient() {
             @Override
             public boolean shouldOverrideUrlLoading(WebView view, String url) {
-                if (url.startsWith("https://termux.com")) {
+                if (url.startsWith("https://wiki.termux.com")) {
                     // Inline help.
                     setContentView(progressLayout);
                     return false;
@@ -60,7 +60,7 @@ public final class TermuxHelpActivity extends Activity {
                 setContentView(mWebView);
             }
         });
-        mWebView.loadUrl("https://termux.com/help.html");
+        mWebView.loadUrl("https://wiki.termux.com/wiki/Main_Page");
     }
 
     @Override

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

@@ -43,7 +43,7 @@ import java.util.zip.ZipInputStream;
  * (4) The architecture is determined and an appropriate bootstrap zip url is determined in {@link #determineZipUrl()}.
  * <p/>
  * (5) The zip, containing entries relative to the $PREFIX, is is downloaded and extracted by a zip input stream
- * continously encountering zip file entries:
+ * continuously encountering zip file entries:
  * <p/>
  * (5.1) If the zip entry encountered is SYMLINKS.txt, go through it and remember all symlinks to setup.
  * <p/>
@@ -184,25 +184,28 @@ final class TermuxInstaller {
 
     /** Get bootstrap zip url for this systems cpu architecture. */
     static URL determineZipUrl() throws MalformedURLException {
-        String termuxArch = null;
+        String archName = determineTermuxArchName();
+        return new URL("https://termux.net/bootstrap/bootstrap-" + archName + ".zip");
+    }
+
+    private static String determineTermuxArchName() {
         // Note that we cannot use System.getProperty("os.arch") since that may give e.g. "aarch64"
         // while a 64-bit runtime may not be installed (like on the Samsung Galaxy S5 Neo).
         // Instead we search through the supported abi:s on the device, see:
         // http://developer.android.com/ndk/guides/abis.html
-        // Note that we search for abi:s in preferred order, and want to avoid installing arm on
+        // Note that we search for abi:s in preferred order (the ordering of the
-        // an x86 system where arm emulation is available.
+        // Build.SUPPORTED_ABIS list) to avoid e.g. installing arm on an x86 system where arm
-        final String[] androidArchNames = {"arm64-v8a", "x86_64", "x86", "armeabi-v7a"};
+        // emulation is available.
-        final String[] termuxArchNames = {"aarch64", "x86_64", "i686", "arm"};
+        for (String androidArch : Build.SUPPORTED_ABIS) {
-
+            switch (androidArch) {
-        final List<String> supportedArches = Arrays.asList(Build.SUPPORTED_ABIS);
+                case "arm64-v8a": return "aarch64";
-        for (int i = 0; i < termuxArchNames.length; i++) {
+                case "armeabi-v7a": return "arm";
-            if (supportedArches.contains(androidArchNames[i])) {
+                case "x86_64": return "x86_64";
-                termuxArch = termuxArchNames[i];
+                case "x86": return "i686";
-                break;
             }
         }
-
+        throw new RuntimeException("Unable to determine arch from Build.SUPPORTED_ABIS =  " +
-        return new URL("https://termux.net/bootstrap/bootstrap-" + termuxArch + ".zip");
+            Arrays.toString(Build.SUPPORTED_ABIS));
     }
 
     /** Delete a folder and all its content or throw. */
@@ -225,9 +228,13 @@ final class TermuxInstaller {
                 try {
                     File storageDir = new File(TermuxService.HOME_PATH, "storage");
 
-                    if (storageDir.exists() && !storageDir.delete()) {
+                    if (storageDir.exists()) {
-                        Log.e(LOG_TAG, "Could not delete old $HOME/storage");
+                        try {
-                        return;
+                            deleteFolder(storageDir);
+                        } catch (Exception e) {
+                            Log.e(LOG_TAG, "Could not delete old $HOME/storage, " + e.getMessage());
+                            return;
+                        }
                     }
 
                     if (!storageDir.mkdirs()) {
@@ -254,9 +261,13 @@ final class TermuxInstaller {
                     Os.symlink(moviesDir.getAbsolutePath(), new File(storageDir, "movies").getAbsolutePath());
 
                     final File[] dirs = context.getExternalFilesDirs(null);
-                    if (dirs != null && dirs.length >= 2) {
+                    if (dirs != null && dirs.length > 1) {
-                        final File externalDir = dirs[1];
+                        for (int i = 1; i < dirs.length; i++) {
-                        Os.symlink(externalDir.getAbsolutePath(), new File(storageDir, "external").getAbsolutePath());
+                            File dir = dirs[i];
+                            if (dir == null) continue;
+                            String symlinkName = "external-" + i;
+                            Os.symlink(dir.getAbsolutePath(), new File(storageDir, symlinkName).getAbsolutePath());
+                        }
                     }
                 } catch (Exception e) {
                     Log.e(LOG_TAG, "Error setting up link", e);

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

@@ -0,0 +1,190 @@
+package com.termux.app;
+
+import android.content.ActivityNotFoundException;
+import android.content.BroadcastReceiver;
+import android.content.ContentValues;
+import android.content.Context;
+import android.content.Intent;
+import android.database.Cursor;
+import android.database.MatrixCursor;
+import android.net.Uri;
+import android.os.Environment;
+import android.os.ParcelFileDescriptor;
+import android.provider.MediaStore;
+import android.support.annotation.NonNull;
+import android.util.Log;
+import android.webkit.MimeTypeMap;
+
+import com.termux.terminal.EmulatorDebug;
+
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+
+public class TermuxOpenReceiver extends BroadcastReceiver {
+
+    @Override
+    public void onReceive(Context context, Intent intent) {
+        final Uri data = intent.getData();
+        if (data == null) {
+            Log.e(EmulatorDebug.LOG_TAG, "termux-open: Called without intent data");
+            return;
+        }
+
+        final String filePath = data.getPath();
+        final String contentTypeExtra = intent.getStringExtra("content-type");
+        final boolean useChooser = intent.getBooleanExtra("chooser", false);
+        final String intentAction = intent.getAction() == null ? Intent.ACTION_VIEW : intent.getAction();
+        switch (intentAction) {
+            case Intent.ACTION_SEND:
+            case Intent.ACTION_VIEW:
+                // Ok.
+                break;
+            default:
+                Log.e(EmulatorDebug.LOG_TAG, "Invalid action '" + intentAction + "', using 'view'");
+                break;
+        }
+
+        final boolean isExternalUrl = data.getScheme() != null && !data.getScheme().equals("file");
+        if (isExternalUrl) {
+            Intent urlIntent = new Intent(intentAction, data);
+            if (intentAction.equals(Intent.ACTION_SEND)) {
+                urlIntent.putExtra(Intent.EXTRA_TEXT, data.toString());
+                urlIntent.setData(null);
+            } else if (contentTypeExtra != null) {
+                urlIntent.setDataAndType(data, contentTypeExtra);
+            }
+            urlIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+            try {
+                context.startActivity(urlIntent);
+            } catch (ActivityNotFoundException e) {
+                Log.e(EmulatorDebug.LOG_TAG, "termux-open: No app handles the url " + data);
+            }
+            return;
+        }
+
+        final File fileToShare = new File(filePath);
+        if (!(fileToShare.isFile() && fileToShare.canRead())) {
+            Log.e(EmulatorDebug.LOG_TAG, "termux-open: Not a readable file: '" + fileToShare.getAbsolutePath() + "'");
+            return;
+        }
+
+        Intent sendIntent = new Intent();
+        sendIntent.setAction(intentAction);
+        sendIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_GRANT_READ_URI_PERMISSION);
+
+        String contentTypeToUse;
+        if (contentTypeExtra == null) {
+            String fileName = fileToShare.getName();
+            int lastDotIndex = fileName.lastIndexOf('.');
+            String fileExtension = fileName.substring(lastDotIndex + 1, fileName.length());
+            MimeTypeMap mimeTypes = MimeTypeMap.getSingleton();
+            // Lower casing makes it work with e.g. "JPG":
+            contentTypeToUse = mimeTypes.getMimeTypeFromExtension(fileExtension.toLowerCase());
+            if (contentTypeToUse == null) contentTypeToUse = "application/octet-stream";
+        } else {
+            contentTypeToUse = contentTypeExtra;
+        }
+
+        Uri uriToShare = Uri.withAppendedPath(Uri.parse("content://com.termux.files/"), filePath);
+
+        if (Intent.ACTION_SEND.equals(intentAction)) {
+            sendIntent.putExtra(Intent.EXTRA_STREAM, uriToShare);
+            sendIntent.setType(contentTypeToUse);
+        } else {
+            sendIntent.setDataAndType(uriToShare, contentTypeToUse);
+        }
+
+        if (useChooser) {
+            sendIntent = Intent.createChooser(sendIntent, null).addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+        }
+
+        try {
+            context.startActivity(sendIntent);
+        } catch (ActivityNotFoundException e) {
+            Log.e(EmulatorDebug.LOG_TAG, "termux-open: No app handles the url " + data);
+        }
+    }
+
+    public static class ContentProvider extends android.content.ContentProvider {
+
+        @Override
+        public boolean onCreate() {
+            return true;
+        }
+
+        @Override
+        public Cursor query(@NonNull Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder) {
+            File file = new File(uri.getPath());
+
+            if (projection == null) {
+                projection = new String[]{
+                    MediaStore.MediaColumns.DISPLAY_NAME,
+                    MediaStore.MediaColumns.SIZE,
+                    MediaStore.MediaColumns._ID
+                };
+            }
+
+            Object[] row = new Object[projection.length];
+            for (int i = 0; i < projection.length; i++) {
+                String column = projection[i];
+                Object value;
+                switch (column) {
+                    case MediaStore.MediaColumns.DISPLAY_NAME:
+                        value = file.getName();
+                        break;
+                    case MediaStore.MediaColumns.SIZE:
+                        value = (int) file.length();
+                        break;
+                    case MediaStore.MediaColumns._ID:
+                        value = 1;
+                        break;
+                    default:
+                        value = null;
+                }
+                row[i] = value;
+            }
+
+            MatrixCursor cursor = new MatrixCursor(projection);
+            cursor.addRow(row);
+            return cursor;
+        }
+
+        @Override
+        public String getType(@NonNull Uri uri) {
+            return null;
+        }
+
+        @Override
+        public Uri insert(@NonNull Uri uri, ContentValues values) {
+            return null;
+        }
+
+        @Override
+        public int delete(@NonNull Uri uri, String selection, String[] selectionArgs) {
+            return 0;
+        }
+
+        @Override
+        public int update(@NonNull Uri uri, ContentValues values, String selection, String[] selectionArgs) {
+            return 0;
+        }
+
+        @Override
+        public ParcelFileDescriptor openFile(@NonNull Uri uri, @NonNull String mode) throws FileNotFoundException {
+            File file = new File(uri.getPath());
+            try {
+                String path = file.getCanonicalPath();
+                String storagePath = Environment.getExternalStorageDirectory().getCanonicalPath();
+                // See https://support.google.com/faqs/answer/7496913:
+                if (!(path.startsWith(TermuxService.FILES_PATH) || path.startsWith(storagePath))) {
+                    throw new IllegalArgumentException("Invalid path: " + path);
+                }
+            } catch (IOException e) {
+                throw new IllegalArgumentException(e);
+            }
+            return ParcelFileDescriptor.open(file, ParcelFileDescriptor.MODE_READ_ONLY);
+        }
+    }
+
+}

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

@@ -32,13 +32,10 @@ final class TermuxPreferences {
     private final int MIN_FONTSIZE;
     private static final int MAX_FONTSIZE = 256;
 
-    private static final String FULLSCREEN_KEY = "fullscreen";
     private static final String SHOW_EXTRA_KEYS_KEY = "show_extra_keys";
     private static final String FONTSIZE_KEY = "fontsize";
     private static final String CURRENT_SESSION_KEY = "current_session";
-    private static final String SHOW_WELCOME_DIALOG_KEY = "intro_dialog";
 
-    private boolean mFullScreen;
     private int mFontSize;
 
     @AsciiBellBehaviour
@@ -57,7 +54,6 @@ final class TermuxPreferences {
         // to prevent invisible text due to zoom be mistake:
         MIN_FONTSIZE = (int) (4f * dipInPixels);
 
-        mFullScreen = prefs.getBoolean(FULLSCREEN_KEY, false);
         mShowExtraKeys = prefs.getBoolean(SHOW_EXTRA_KEYS_KEY, false);
 
         // http://www.google.com/design/spec/style/typography.html#typography-line-height
@@ -73,15 +69,6 @@ final class TermuxPreferences {
         mFontSize = Math.max(MIN_FONTSIZE, Math.min(mFontSize, MAX_FONTSIZE));
     }
 
-    boolean isFullScreen() {
-        return mFullScreen;
-    }
-
-    void setFullScreen(Context context, boolean newValue) {
-        mFullScreen = newValue;
-        PreferenceManager.getDefaultSharedPreferences(context).edit().putBoolean(FULLSCREEN_KEY, newValue).apply();
-    }
-
     boolean isShowExtraKeys() {
         return mShowExtraKeys;
     }
@@ -105,7 +92,7 @@ final class TermuxPreferences {
     }
 
     static void storeCurrentSession(Context context, TerminalSession session) {
-        PreferenceManager.getDefaultSharedPreferences(context).edit().putString(TermuxPreferences.CURRENT_SESSION_KEY, session.mHandle).commit();
+        PreferenceManager.getDefaultSharedPreferences(context).edit().putString(TermuxPreferences.CURRENT_SESSION_KEY, session.mHandle).apply();
     }
 
     static TerminalSession getCurrentSession(TermuxActivity context) {
@@ -117,14 +104,6 @@ final class TermuxPreferences {
         return null;
     }
 
-    public static boolean isShowWelcomeDialog(Context context) {
-        return PreferenceManager.getDefaultSharedPreferences(context).getBoolean(SHOW_WELCOME_DIALOG_KEY, true);
-    }
-
-    public static void disableWelcomeDialog(Context context) {
-        PreferenceManager.getDefaultSharedPreferences(context).edit().putBoolean(SHOW_WELCOME_DIALOG_KEY, false).apply();
-    }
-
     public void reloadFromProperties(Context context) {
         try {
             File propsFile = new File(TermuxService.HOME_PATH + "/.termux/termux.properties");
@@ -184,9 +163,9 @@ final class TermuxPreferences {
     private void parseAction(String name, int shortcutAction, Properties props) {
         String value = props.getProperty(name);
         if (value == null) return;
-        String[] parts = value.trim().split("\\+");
+        String[] parts = value.toLowerCase().trim().split("\\+");
         String input = parts.length == 2 ? parts[1].trim() : null;
-        if (!(parts.length == 2 && parts[0].trim().equalsIgnoreCase("ctrl")) || input.isEmpty() || input.length() > 2) {
+        if (!(parts.length == 2 && parts[0].trim().equals("ctrl")) || input.isEmpty() || input.length() > 2) {
             Log.e("termux", "Keyboard shortcut '" + name + "' is not Ctrl+<something>");
             return;
         }

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

@@ -2,6 +2,7 @@ package com.termux.app;
 
 import android.annotation.SuppressLint;
 import android.app.Notification;
+import android.app.NotificationChannel;
 import android.app.NotificationManager;
 import android.app.PendingIntent;
 import android.app.Service;
@@ -11,6 +12,8 @@ import android.content.res.Resources;
 import android.net.Uri;
 import android.net.wifi.WifiManager;
 import android.os.Binder;
+import android.os.Build;
+import android.os.Handler;
 import android.os.IBinder;
 import android.os.PowerManager;
 import android.util.Log;
@@ -22,7 +25,6 @@ import com.termux.terminal.TerminalSession;
 import com.termux.terminal.TerminalSession.SessionChangedCallback;
 
 import java.io.File;
-import java.io.IOException;
 import java.util.ArrayList;
 import java.util.List;
 
@@ -40,6 +42,8 @@ import java.util.List;
  */
 public final class TermuxService extends Service implements SessionChangedCallback {
 
+    private static final String NOTIFICATION_CHANNEL_ID = "termux_notification_channel";
+
     /** Note that this is a symlink on the Android M preview. */
     @SuppressLint("SdCardPath")
     public static final String FILES_PATH = "/data/data/com.termux/files";
@@ -48,18 +52,16 @@ public final class TermuxService extends Service implements SessionChangedCallba
 
     private static final int NOTIFICATION_ID = 1337;
 
-    /** Intent action to stop the service. */
     private static final String ACTION_STOP_SERVICE = "com.termux.service_stop";
-    /** Intent action to toggle the wake lock, {@link #mWakeLock}, which this service may hold. */
+    private static final String ACTION_LOCK_WAKE = "com.termux.service_wake_lock";
-    private static final String ACTION_LOCK_WAKE = "com.termux.service_toggle_wake_lock";
+    private static final String ACTION_UNLOCK_WAKE = "com.termux.service_wake_unlock";
-    /** 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. */
     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";
+    private static final String EXTRA_EXECUTE_IN_BACKGROUND = "com.termux.execute.background";
 
     /** This service is only bound from inside the same process and never uses IPC. */
     class LocalBinder extends Binder {
@@ -68,6 +70,8 @@ public final class TermuxService extends Service implements SessionChangedCallba
 
     private final IBinder mBinder = new LocalBinder();
 
+    private final Handler mHandler = new Handler();
+
     /**
      * The terminal sessions which this service manages.
      * <p/>
@@ -76,9 +80,12 @@ public final class TermuxService extends Service implements SessionChangedCallba
      */
     final List<TerminalSession> mTerminalSessions = new ArrayList<>();
 
+    final List<BackgroundJob> mBackgroundTasks = new ArrayList<>();
+
     /** Note that the service may often outlive the activity, so need to clear this reference. */
     SessionChangedCallback mSessionChangeCallback;
 
+    /** The wake lock and wifi lock are always acquired and released together. */
     private PowerManager.WakeLock mWakeLock;
     private WifiManager.WifiLock mWifiLock;
 
@@ -99,41 +106,52 @@ public final class TermuxService extends Service implements SessionChangedCallba
                 PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
                 mWakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, EmulatorDebug.LOG_TAG);
                 mWakeLock.acquire();
-            } else {
+
-                mWakeLock.release();
+                // http://tools.android.com/tech-docs/lint-in-studio-2-3#TOC-WifiManager-Leak
-                mWakeLock = null;
+                WifiManager wm = (WifiManager) getApplicationContext().getSystemService(Context.WIFI_SERVICE);
-            }
-            updateNotification();
-        } else if (ACTION_LOCK_WIFI.equals(action)) {
-            if (mWifiLock == null) {
-                WifiManager wm = (WifiManager) getSystemService(Context.WIFI_SERVICE);
                 mWifiLock = wm.createWifiLock(WifiManager.WIFI_MODE_FULL_HIGH_PERF, EmulatorDebug.LOG_TAG);
                 mWifiLock.acquire();
-            } else {
+
+                updateNotification();
+            }
+        } else if (ACTION_UNLOCK_WAKE.equals(action)) {
+            if (mWakeLock != null) {
+                mWakeLock.release();
+                mWakeLock = null;
+
                 mWifiLock.release();
                 mWifiLock = null;
+
+                updateNotification();
             }
-            updateNotification();
         } else if (ACTION_EXECUTE.equals(action)) {
             Uri executableUri = intent.getData();
             String executablePath = (executableUri == null ? null : executableUri.getPath());
+
             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".
+            if (intent.getBooleanExtra(EXTRA_EXECUTE_IN_BACKGROUND, false)) {
-            if (executablePath != null) {
+                BackgroundJob task = new BackgroundJob(cwd, executablePath, arguments, this);
-                int lastSlash = executablePath.lastIndexOf('/');
+                mBackgroundTasks.add(task);
-                String name = (lastSlash == -1) ? executablePath : executablePath.substring(lastSlash + 1);
+                updateNotification();
-                name = name.replace('-', ' ');
+            } else {
-                newSession.mSessionName = name;
+                TerminalSession newSession = createTermSession(executablePath, arguments, cwd, false);
+
+                // Transform executable path to session name, e.g. "/bin/do-something.sh" => "do something.sh".
+                if (executablePath != null) {
+                    int lastSlash = executablePath.lastIndexOf('/');
+                    String name = (lastSlash == -1) ? executablePath : executablePath.substring(lastSlash + 1);
+                    name = name.replace('-', ' ');
+                    newSession.mSessionName = name;
+                }
+
+                // Make the newly created session the current one to be displayed:
+                TermuxPreferences.storeCurrentSession(this, newSession);
+
+                // Launch the main Termux app, which will now show the current session:
+                startActivity(new Intent(this, TermuxActivity.class).addFlags(Intent.FLAG_ACTIVITY_NEW_TASK));
             }
-
-            // Make the newly created session the current one to be displayed:
-            TermuxPreferences.storeCurrentSession(this, newSession);
-
-            // Launch the main Termux app, which will now show to current session:
-            startActivity(new Intent(this, TermuxActivity.class).addFlags(Intent.FLAG_ACTIVITY_NEW_TASK));
         } else if (action != null) {
             Log.e(EmulatorDebug.LOG_TAG, "Unknown TermuxService action: '" + action + "'");
         }
@@ -150,13 +168,14 @@ public final class TermuxService extends Service implements SessionChangedCallba
 
     @Override
     public void onCreate() {
+        setupNotificationChannel();
         startForeground(NOTIFICATION_ID, buildNotification());
     }
 
     /** Update the shown foreground service notification after making any changes that affect it. */
-    private void updateNotification() {
+    void updateNotification() {
-        if (mWakeLock == null && mWifiLock == null && getSessions().isEmpty()) {
+        if (mWakeLock == null && mTerminalSessions.isEmpty() && mBackgroundTasks.isEmpty()) {
-            // Exit if we are updating after the user disabled all locks with no sessions.
+            // Exit if we are updating after the user disabled all locks with no sessions or tasks running.
             stopSelf();
         } else {
             ((NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE)).notify(NOTIFICATION_ID, buildNotification());
@@ -171,18 +190,15 @@ public final class TermuxService extends Service implements SessionChangedCallba
         PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, notifyIntent, 0);
 
         int sessionCount = mTerminalSessions.size();
-        String contentText = sessionCount + " terminal session" + (sessionCount == 1 ? "" : "s");
+        int taskCount = mBackgroundTasks.size();
-
+        String contentText = sessionCount + " session" + (sessionCount == 1 ? "" : "s");
-        boolean wakeLockHeld = mWakeLock != null;
+        if (taskCount > 0) {
-        boolean wifiLockHeld = mWifiLock != null;
+            contentText += ", " + taskCount + " task" + (taskCount == 1 ? "" : "s");
-        if (wakeLockHeld && wifiLockHeld) {
-            contentText += " (wake&wifi lock held)";
-        } else if (wakeLockHeld) {
-            contentText += " (wake lock held)";
-        } else if (wifiLockHeld) {
-            contentText += " (wifi lock held)";
         }
 
+        final boolean wakeLockHeld = mWakeLock != null;
+        if (wakeLockHeld) contentText += " (wake lock held)";
+
         Notification.Builder builder = new Notification.Builder(this);
         builder.setContentTitle(getText(R.string.application_name));
         builder.setContentText(contentText);
@@ -191,8 +207,8 @@ public final class TermuxService extends Service implements SessionChangedCallba
         builder.setOngoing(true);
 
         // If holding a wake or wifi lock consider the notification of high priority since it's using power,
-        // otherwise use a minimal priority since this is just a background service notification:
+        // otherwise use a low priority
-        builder.setPriority((wakeLockHeld || wifiLockHeld) ? Notification.PRIORITY_HIGH : Notification.PRIORITY_MIN);
+        builder.setPriority((wakeLockHeld) ? Notification.PRIORITY_HIGH : Notification.PRIORITY_LOW);
 
         // No need to show a timestamp:
         builder.setShowWhen(false);
@@ -200,17 +216,21 @@ public final class TermuxService extends Service implements SessionChangedCallba
         // Background color for small notification icon:
         builder.setColor(0xFF000000);
 
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            builder.setChannelId(NOTIFICATION_CHANNEL_ID);
+        }
+
         Resources res = getResources();
         Intent exitIntent = new Intent(this, TermuxService.class).setAction(ACTION_STOP_SERVICE);
         builder.addAction(android.R.drawable.ic_delete, res.getString(R.string.notification_action_exit), PendingIntent.getService(this, 0, exitIntent, 0));
 
-        Intent toggleWakeLockIntent = new Intent(this, TermuxService.class).setAction(ACTION_LOCK_WAKE);
+        String newWakeAction = wakeLockHeld ? ACTION_UNLOCK_WAKE : ACTION_LOCK_WAKE;
-        builder.addAction(android.R.drawable.ic_lock_lock, res.getString(R.string.notification_action_wakelock),
+        Intent toggleWakeLockIntent = new Intent(this, TermuxService.class).setAction(newWakeAction);
-            PendingIntent.getService(this, 0, toggleWakeLockIntent, 0));
+        String actionTitle = res.getString(wakeLockHeld ?
-
+            R.string.notification_action_wake_unlock :
-        Intent toggleWifiLockIntent = new Intent(this, TermuxService.class).setAction(ACTION_LOCK_WIFI);
+            R.string.notification_action_wake_lock);
-        builder.addAction(android.R.drawable.ic_lock_lock, res.getString(R.string.notification_action_wifilock),
+        int actionIcon = wakeLockHeld ? android.R.drawable.ic_lock_idle_lock : android.R.drawable.ic_lock_lock;
-            PendingIntent.getService(this, 0, toggleWifiLockIntent, 0));
+        builder.addAction(actionIcon, actionTitle, PendingIntent.getService(this, 0, toggleWakeLockIntent, 0));
 
         return builder.build();
     }
@@ -224,7 +244,6 @@ public final class TermuxService extends Service implements SessionChangedCallba
 
         for (int i = 0; i < mTerminalSessions.size(); i++)
             mTerminalSessions.get(i).finishIfRunning();
-        mTerminalSessions.clear();
     }
 
     public List<TerminalSession> getSessions() {
@@ -236,53 +255,15 @@ public final class TermuxService extends Service implements SessionChangedCallba
 
         if (cwd == null) cwd = HOME_PATH;
 
-        final String termEnv = "TERM=xterm-256color";
+        String[] env = BackgroundJob.buildEnvironment(failSafe, cwd);
-        final String homeEnv = "HOME=" + HOME_PATH;
+        boolean isLoginShell = false;
-        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) {
-            // 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";
-            final String pwdEnv = "PWD=" + cwd;
 
-            env = new String[]{termEnv, homeEnv, prefixEnv, ps1Env, ldEnv, langEnv, pathEnv, pwdEnv, androidRootEnv, androidDataEnv, externalStorageEnv};
-        }
-
-        String shellName;
         if (executablePath == null) {
-            File shell = new File(HOME_PATH, ".termux/shell");
+            for (String shellBinary : new String[]{"login", "bash", "zsh"}) {
-            if (shell.exists()) {
+                File shellFile = new File(PREFIX_PATH + "/bin/" + shellBinary);
-                try {
+                if (shellFile.canExecute()) {
-                    File canonicalFile = shell.getCanonicalFile();
+                    executablePath = shellFile.getAbsolutePath();
-                    if (canonicalFile.isFile() && canonicalFile.canExecute()) {
+                    break;
-                        executablePath = canonicalFile.getName().equals("busybox") ? (PREFIX_PATH + "/bin/ash") : canonicalFile.getAbsolutePath();
-                    } else {
-                        Log.w(EmulatorDebug.LOG_TAG, "$HOME/.termux/shell points to non-executable shell: " + canonicalFile.getAbsolutePath());
-                    }
-                } catch (IOException e) {
-                    Log.e(EmulatorDebug.LOG_TAG, "Error checking $HOME/.termux/shell", e);
-                }
-            }
-
-            if (executablePath == null) {
-                // Try bash, zsh and ash in that order:
-                for (String shellBinary : new String[]{"bash", "zsh", "ash"}) {
-                    File shellFile = new File(PREFIX_PATH + "/bin/" + shellBinary);
-                    if (shellFile.canExecute()) {
-                        executablePath = shellFile.getAbsolutePath();
-                        break;
-                    }
                 }
             }
 
@@ -290,23 +271,18 @@ public final class TermuxService extends Service implements SessionChangedCallba
                 // Fall back to system shell as last resort:
                 executablePath = "/system/bin/sh";
             }
-
+            isLoginShell = true;
-            String[] parts = executablePath.split("/");
-            shellName = "-" + parts[parts.length - 1];
-        } else {
-            int lastSlashIndex = executablePath.lastIndexOf('/');
-            shellName = lastSlashIndex == -1 ? executablePath : executablePath.substring(lastSlashIndex + 1);
         }
 
-        String[] args;
+        String[] processArgs = BackgroundJob.setupProcessArgs(executablePath, arguments);
-        if (arguments == null) {
+        executablePath = processArgs[0];
-            args = new String[]{shellName};
+        int lastSlashIndex = executablePath.lastIndexOf('/');
-        } else {
+        String processName = (isLoginShell ? "-" : "") +
-            args = new String[arguments.length + 1];
+            (lastSlashIndex == -1 ? executablePath : executablePath.substring(lastSlashIndex + 1));
-            args[0] = shellName;
 
-            System.arraycopy(arguments, 0, args, 1, arguments.length);
+        String[] args = new String[processArgs.length];
-        }
+        args[0] = processName;
+        if (processArgs.length > 1) System.arraycopy(processArgs, 1, args, 1, processArgs.length - 1);
 
         TerminalSession session = new TerminalSession(executablePath, cwd, args, env, this);
         mTerminalSessions.add(session);
@@ -358,4 +334,26 @@ public final class TermuxService extends Service implements SessionChangedCallba
         if (mSessionChangeCallback != null) mSessionChangeCallback.onColorsChanged(session);
     }
 
+    public void onBackgroundJobExited(final BackgroundJob task) {
+        mHandler.post(new Runnable() {
+            @Override
+            public void run() {
+                mBackgroundTasks.remove(task);
+                updateNotification();
+            }
+        });
+    }
+
+    private void setupNotificationChannel() {
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) return;
+
+        String channelName = "Termux";
+        String channelDescription = "Notifications from Termux";
+        int importance = NotificationManager.IMPORTANCE_LOW;
+
+        NotificationChannel channel = new NotificationChannel(NOTIFICATION_CHANNEL_ID, channelName,importance);
+        channel.setDescription(channelDescription);
+        NotificationManager manager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
+        manager.createNotificationChannel(channel);
+    }
 }

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

@@ -3,7 +3,6 @@ package com.termux.app;
 import android.content.Context;
 import android.media.AudioManager;
 import android.support.v4.widget.DrawerLayout;
-import android.util.Log;
 import android.view.Gravity;
 import android.view.InputDevice;
 import android.view.KeyEvent;
@@ -13,18 +12,18 @@ import android.view.inputmethod.InputMethodManager;
 import com.termux.terminal.KeyHandler;
 import com.termux.terminal.TerminalEmulator;
 import com.termux.terminal.TerminalSession;
-import com.termux.view.TerminalKeyListener;
+import com.termux.view.TerminalViewClient;
 
 import java.util.List;
 
-public final class TermuxKeyListener implements TerminalKeyListener {
+public final class TermuxViewClient implements TerminalViewClient {
 
     final TermuxActivity mActivity;
 
     /** Keeping track of the special keys acting as Ctrl and Fn for the soft keyboard and other hardware keys. */
     boolean mVirtualControlKeyDown, mVirtualFnKeyDown;
 
-    public TermuxKeyListener(TermuxActivity activity) {
+    public TermuxViewClient(TermuxActivity activity) {
         this.mActivity = activity;
     }
 
@@ -55,33 +54,14 @@ public final class TermuxKeyListener implements TerminalKeyListener {
         mActivity.getDrawer().setDrawerLockMode(copyMode ? DrawerLayout.LOCK_MODE_LOCKED_CLOSED : DrawerLayout.LOCK_MODE_UNLOCKED);
     }
 
-    private void returnOnFinishedSession(TerminalSession currentSession) {
-        // Return pressed with finished session - remove it.
-        currentSession.finishIfRunning();
-
-        TermuxService service = mActivity.mTermService;
-
-        int index = service.removeTermSession(currentSession);
-        mActivity.mListViewAdapter.notifyDataSetChanged();
-        if (mActivity.mTermService.getSessions().isEmpty()) {
-            // There are no sessions to show, so finish the activity.
-            mActivity.finish();
-        } else {
-            if (index >= service.getSessions().size()) {
-                index = service.getSessions().size() - 1;
-            }
-            mActivity.switchToSession(service.getSessions().get(index));
-        }
-    }
-
     @Override
     public boolean onKeyDown(int keyCode, KeyEvent e, TerminalSession currentSession) {
         if (handleVirtualKeys(keyCode, e, true)) return true;
 
         if (keyCode == KeyEvent.KEYCODE_ENTER && !currentSession.isRunning()) {
-            returnOnFinishedSession(currentSession);
+            mActivity.removeFinishedSession(currentSession);
             return true;
-        } else if (e.isCtrlPressed() && e.isShiftPressed()) {
+        } else if (e.isCtrlPressed() && e.isAltPressed()) {
             // Get the unmodified code point:
             int unicodeChar = e.getUnicodeChar(0);
 
@@ -93,8 +73,6 @@ public final class TermuxKeyListener implements TerminalKeyListener {
                 mActivity.getDrawer().openDrawer(Gravity.LEFT);
             } else if (keyCode == KeyEvent.KEYCODE_DPAD_LEFT) {
                 mActivity.getDrawer().closeDrawers();
-            } else if (unicodeChar == 'f'/* full screen */) {
-                mActivity.toggleImmersive();
             } else if (unicodeChar == 'k'/* keyboard */) {
                 InputMethodManager imm = (InputMethodManager) mActivity.getSystemService(Context.INPUT_METHOD_SERVICE);
                 imm.toggleSoftInput(InputMethodManager.SHOW_FORCED, 0);
@@ -180,7 +158,7 @@ public final class TermuxKeyListener implements TerminalKeyListener {
                     resultingKeyCode = KeyEvent.KEYCODE_INSERT;
                     break;
                 case 'h':
-                    resultingKeyCode = KeyEvent.KEYCODE_MOVE_HOME;
+                    resultingCodePoint = '~';
                     break;
 
                 // Special characters to input.
@@ -244,15 +222,16 @@ public final class TermuxKeyListener implements TerminalKeyListener {
             return true;
         } else if (ctrlDown) {
             if (codePoint == 106 /* Ctrl+j or \n */ && !session.isRunning()) {
-                returnOnFinishedSession(session);
+                mActivity.removeFinishedSession(session);
                 return true;
             }
 
             List<TermuxPreferences.KeyboardShortcut> shortcuts = mActivity.mSettings.shortcuts;
             if (!shortcuts.isEmpty()) {
+                int codePointLowerCase = Character.toLowerCase(codePoint);
                 for (int i = shortcuts.size() - 1; i >= 0; i--) {
                     TermuxPreferences.KeyboardShortcut shortcut = shortcuts.get(i);
-                    if (codePoint == shortcut.codePoint) {
+                    if (codePointLowerCase == shortcut.codePoint) {
                         switch (shortcut.shortcutAction) {
                             case TermuxPreferences.SHORTCUT_ACTION_CREATE_SESSION:
                                 mActivity.addNewSession(false, null);
@@ -275,6 +254,11 @@ public final class TermuxKeyListener implements TerminalKeyListener {
         return false;
     }
 
+    @Override
+    public boolean onLongPress(MotionEvent event) {
+        return false;
+    }
+
     /** Handle dedicated volume buttons as virtual keys if applicable. */
     private boolean handleVirtualKeys(int keyCode, KeyEvent event, boolean down) {
         InputDevice inputDevice = event.getDevice();

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

@@ -75,7 +75,7 @@ public class TermuxDocumentsProvider extends DocumentsProvider {
         row.add(Root.COLUMN_TITLE, applicationName);
         row.add(Root.COLUMN_MIME_TYPES, ALL_MIME_TYPES);
         row.add(Root.COLUMN_AVAILABLE_BYTES, BASE_DIR.getFreeSpace());
-        row.add(Root.COLUMN_ICON, R.drawable.ic_launcher);
+        row.add(Root.COLUMN_ICON, R.mipmap.ic_launcher);
         return result;
     }
 
@@ -195,7 +195,7 @@ public class TermuxDocumentsProvider extends DocumentsProvider {
             final String name = file.getName();
             final int lastDot = name.lastIndexOf('.');
             if (lastDot >= 0) {
-                final String extension = name.substring(lastDot + 1);
+                final String extension = name.substring(lastDot + 1).toLowerCase();
                 final String mime = MimeTypeMap.getSingleton().getMimeTypeFromExtension(extension);
                 if (mime != null) return mime;
             }
@@ -236,7 +236,7 @@ public class TermuxDocumentsProvider extends DocumentsProvider {
         row.add(Document.COLUMN_MIME_TYPE, mimeType);
         row.add(Document.COLUMN_LAST_MODIFIED, file.lastModified());
         row.add(Document.COLUMN_FLAGS, flags);
-        row.add(Document.COLUMN_ICON, R.drawable.ic_launcher);
+        row.add(Document.COLUMN_ICON, R.mipmap.ic_launcher);
     }
 
 }

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

@@ -1,55 +0,0 @@
-package com.termux.terminal;
-
-/**
- * Encodes effects, foreground and background colors into a 32 bit integer, which are stored for each cell in a terminal
- * row in {@link TerminalRow#mStyle}.
- * <p/>
- * The foreground and background colors take 9 bits each, leaving (32-9-9)=14 bits for effect flags. Using 9 for now
- * (the different CHARACTER_ATTRIBUTE_* bits).
- */
-public final class TextStyle {
-
-    public final static int CHARACTER_ATTRIBUTE_BOLD = 1;
-    public final static int CHARACTER_ATTRIBUTE_ITALIC = 1 << 1;
-    public final static int CHARACTER_ATTRIBUTE_UNDERLINE = 1 << 2;
-    public final static int CHARACTER_ATTRIBUTE_BLINK = 1 << 3;
-    public final static int CHARACTER_ATTRIBUTE_INVERSE = 1 << 4;
-    public final static int CHARACTER_ATTRIBUTE_INVISIBLE = 1 << 5;
-    public final static int CHARACTER_ATTRIBUTE_STRIKETHROUGH = 1 << 6;
-    /**
-     * The selective erase control functions (DECSED and DECSEL) can only erase characters defined as erasable.
-     * <p/>
-     * This bit is set if DECSCA (Select Character Protection Attribute) has been used to define the characters that
-     * come after it as erasable from the screen.
-     */
-    public final static int CHARACTER_ATTRIBUTE_PROTECTED = 1 << 7;
-    /** Dim colors. Also known as faint or half intensity. */
-    public final static int CHARACTER_ATTRIBUTE_DIM = 1 << 8;
-
-    public final static int COLOR_INDEX_FOREGROUND = 256;
-    public final static int COLOR_INDEX_BACKGROUND = 257;
-    public final static int COLOR_INDEX_CURSOR = 258;
-
-    /** The 256 standard color entries and the three special (foreground, background and cursor) ones. */
-    public final static int NUM_INDEXED_COLORS = 259;
-
-    /** Normal foreground and background colors and no effects. */
-    final static int NORMAL = encode(COLOR_INDEX_FOREGROUND, COLOR_INDEX_BACKGROUND, 0);
-
-    static int encode(int foreColor, int backColor, int effect) {
-        return ((effect & 0b111111111) << 18) | ((foreColor & 0b111111111) << 9) | (backColor & 0b111111111);
-    }
-
-    public static int decodeForeColor(int encodedColor) {
-        return (encodedColor >> 9) & 0b111111111;
-    }
-
-    public static int decodeBackColor(int encodedColor) {
-        return encodedColor & 0b111111111;
-    }
-
-    public static int decodeEffect(int encodedColor) {
-        return (encodedColor >> 18) & 0b111111111;
-    }
-
-}

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

@@ -1,108 +0,0 @@
-package com.termux.terminal;
-
-/**
- * wcwidth() implementation from http://git.musl-libc.org/cgit/musl/tree/src/ctype
- * <p/>
- * Modified to return 0 instead of -1.
- */
-public final class WcWidth {
-
-    private static final short table[] = {16, 16, 16, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 16, 16, 32, 16, 16, 16, 33, 34, 35, 36, 37, 38,
-        39, 16, 16, 40, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 41, 42, 16, 16, 43, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-        16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-        16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-        16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 44, 16, 45, 46, 47, 48, 16, 16, 16, 16, 16,
-        16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-        16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-        49, 16, 16, 50, 51, 16, 52, 16, 16, 16, 16, 16, 16, 16, 16, 53, 16, 16, 16, 16, 16, 54, 55, 16, 16, 16, 16, 56, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-        16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-        16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-        16, 16, 16, 16, 16, 57, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-        16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-        16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 58, 59, 16, 16, 16, 16, 16, 16,
-        16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-        16, 16, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 255, 255, 255, 255, 255, 255, 255, 255,
-        255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-        255, 255, 255, 255, 255, 255, 255, 255, 255, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-        248, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 254, 255, 255, 255, 255, 191, 182, 0, 0, 0,
-        0, 0, 0, 0, 31, 0, 255, 7, 0, 0, 0, 0, 0, 248, 255, 255, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 192, 191, 159, 61, 0, 0, 0, 128, 2, 0, 0, 0,
-        255, 255, 255, 7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 192, 255, 1, 0, 0, 0, 0, 0, 0, 248, 15, 0, 0, 0, 192, 251, 239, 62, 0, 0, 0, 0, 0, 14, 0, 0, 0, 0,
-        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 240, 255, 255, 127, 7, 0, 0, 0, 0, 0, 0, 20, 254, 33, 254, 0, 12, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 16, 30, 32, 0,
-        0, 12, 0, 0, 0, 6, 0, 0, 0, 0, 0, 0, 16, 134, 57, 2, 0, 0, 0, 35, 0, 6, 0, 0, 0, 0, 0, 0, 16, 190, 33, 0, 0, 12, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 144,
-        30, 32, 64, 0, 12, 0, 0, 0, 4, 0, 0, 0, 0, 0, 0, 0, 1, 32, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 192, 193, 61, 96, 0, 12, 0, 0, 0, 0, 0, 0, 0, 0,
-        0, 0, 144, 64, 48, 0, 0, 12, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 30, 32, 0, 0, 12, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 92, 0, 0, 0, 0, 0, 0, 0, 0,
-        0, 0, 0, 242, 7, 128, 127, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 242, 27, 0, 63, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 0, 0, 160, 2, 0, 0, 0, 0, 0, 0, 254,
-        127, 223, 224, 255, 254, 255, 255, 255, 31, 64, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 224, 253, 102, 0, 0, 0, 195, 1, 0, 30, 0, 100, 32, 0, 32, 0, 0,
-        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 224, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 28, 0, 0, 0,
-        28, 0, 0, 0, 12, 0, 0, 0, 12, 0, 0, 0, 0, 0, 0, 0, 176, 63, 64, 254, 15, 32, 0, 0, 0, 0, 0, 56, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-        0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 135, 1, 4, 14, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-        128, 1, 0, 0, 0, 0, 0, 0, 64, 127, 229, 31, 248, 159, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 15, 0, 0, 0, 0, 0, 208, 23, 4, 0, 0, 0, 0,
-        248, 15, 0, 3, 0, 0, 0, 60, 11, 0, 0, 0, 0, 0, 0, 64, 163, 3, 0, 0, 0, 0, 0, 0, 240, 207, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-        247, 255, 253, 33, 16, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 255, 255, 255, 255, 127, 0, 0, 240, 0, 248, 0, 0,
-        0, 124, 0, 0, 0, 0, 0, 0, 31, 252, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 255, 255, 255, 255, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 128, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 128, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 255, 255, 255,
-        255, 0, 0, 0, 0, 0, 60, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 6, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 128,
-        247, 63, 0, 0, 0, 128, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 0, 68, 8, 0, 0, 96, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 16, 0, 0, 0,
-        255, 255, 3, 0, 0, 0, 0, 0, 192, 63, 0, 0, 128, 255, 3, 0, 0, 0, 0, 0, 7, 0, 0, 0, 0, 0, 200, 19, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 126, 102,
-        0, 8, 16, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 157, 193, 2, 0, 0, 0, 0, 48, 64, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-        0, 0, 0, 0, 0, 0, 32, 33, 0, 0, 0, 0, 0, 64, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 255, 255, 0, 0,
-        127, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 128, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 14, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 32, 110, 240, 0,
-        0, 0, 0, 0, 135, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 255, 127, 0, 0, 0, 0, 0, 0, 0, 3, 0,
-        0, 0, 0, 0, 120, 38, 0, 0, 0, 0, 0, 0, 0, 0, 7, 0, 0, 0, 128, 239, 31, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 0, 0, 0, 0, 0, 192, 127, 0, 0, 0, 0, 0, 0, 0,
-        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 40, 191, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-        0, 0, 128, 7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 128, 3, 248, 255, 231, 15, 0, 0, 0, 60, 0, 0, 0, 0, 0, 0,
-        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 28, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,};
-
-    private static final short wtable[] = {16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 18, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-        16, 16, 16, 16, 16, 16, 19, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 20, 21, 22, 23, 24, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
-        17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 25, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
-        17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
-        17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 26, 16, 16, 16, 16, 27, 16, 16, 17, 17, 17, 17, 17,
-        17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
-        17, 28, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 17, 17,
-        16, 16, 16, 29, 30, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-        16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-        16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-        16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-        16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 31, 16, 16, 16,
-        16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-        16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 32, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
-        16, 16, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 255, 255, 255, 255, 255, 255, 255, 255,
-        255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-        255, 255, 255, 255, 255, 255, 255, 0, 0, 0, 0, 0, 0, 0, 0, 248, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 252, 0, 0, 0, 0, 0, 6, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 255, 255, 255, 251, 255, 255, 255, 255, 255, 255,
-        255, 255, 255, 255, 15, 0, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-        255, 255, 63, 0, 0, 0, 255, 15, 255, 255, 255, 255, 255, 255, 255, 127, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 127, 254, 255, 255, 255,
-        255, 255, 255, 255, 255, 255, 255, 255, 255, 224, 255, 255, 255, 255, 63, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 127, 255, 255,
-        255, 255, 255, 7, 255, 255, 255, 255, 15, 0, 255, 255, 255, 255, 255, 127, 255, 255, 255, 255, 255, 0, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-        255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 127, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-        255, 255, 255, 255, 255, 255, 255, 255, 0, 0, 0, 0, 0, 0, 0, 0, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-        255, 31, 255, 255, 255, 255, 255, 255, 127, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 255, 255, 255, 31, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-        0, 0, 0, 0, 0, 0, 0, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 15, 0, 255, 255, 127, 248,
-        255, 255, 255, 255, 255, 15, 0, 0, 255, 3, 0, 0, 255, 255, 255, 255, 247, 255, 127, 15, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 254,
-        255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 127, 0, 0, 0, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 7, 0, 255, 255, 255, 255, 255, 7, 255, 1, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-        0, 0, 0, 0, 0, 0, 0, 0, 0};
-
-    /** Return the terminal display width of a code point: 0, 1 or 2. */
-    public static int width(int wc) {
-        if (wc < 0xff) return (wc + 1 & 0x7f) >= 0x21 ? 1 : (wc != 0) ? 0 : 0;
-        if ((wc & 0xfffeffff) < 0xfffe) {
-            if (((table[table[wc >> 8] * 32 + ((wc & 255) >> 3)] >> (wc & 7)) & 1) != 0) return 0;
-            if (((wtable[wtable[wc >> 8] * 32 + ((wc & 255) >> 3)] >> (wc & 7)) & 1) != 0) return 2;
-            return 1;
-        }
-        if ((wc & 0xfffe) == 0xfffe) return 0;
-        if (wc - 0x20000 < 0x20000) return 2;
-        if (wc == 0xe0001 || wc - 0xe0020 < 0x5f || wc - 0xe0100 < 0xef) return 0;
-        return 1;
-    }
-
-    /** The width at an index position in a java char array. */
-    public static int width(char[] chars, int index) {
-        char c = chars[index];
-        return Character.isHighSurrogate(c) ? width(Character.toCodePoint(c, chars[index + 1])) : width(c);
-    }
-
-}

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

@@ -0,0 +1,17 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportWidth="24.0"
+        android:viewportHeight="24.0">
+
+    <path
+        android:fillColor="#FFF"
+        android:pathData="M 12, 12
+                          m -10.5, 0
+                          a 10.5,10.5 0 1,0 21,0
+                          a 10.5,10.5 0 1,0 -21,0"/>
+
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M12,2C6.48,2 2,6.48 2,12s4.48,10 10,10 10,-4.48 10,-10S17.52,2 12,2zM17,13h-4v4h-2v-4L7,13v-2h4L11,7h2v4h4v2z"/>
+</vector>

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

@@ -0,0 +1,33 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:height="48dp"
+    android:width="48dp"
+    android:viewportWidth="48"
+    android:viewportHeight="48">
+    <!--
+        https://material.google.com/style/icons.html
+    -->
+
+    <!-- Screen border. -->
+    <path android:fillColor="#00000000"
+          android:strokeColor="#FFF"
+          android:strokeWidth="3"
+          android:pathData="M7,4
+                            l34,0
+                            q3 0,3 3
+                            l0,34
+                            q0 3, -3 3
+                            l-34,0
+                            q-3 0, -3-3
+                            l0 -34
+                            q0 -3, 3 -3"
+          />
+
+    <!-- Block cursor. -->
+    <path android:fillColor="#FFF"
+          android:pathData="M14,14
+                            l5,0
+                            l0,10
+                            l-5,0"
+        />
+
+</vector>

app/src/main/res/layout/drawer_layout.xml

@@ -1,7 +1,8 @@
 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    android:orientation="vertical">
+    android:orientation="vertical"
+    android:fitsSystemWindows="true">
 
     <android.support.v4.widget.DrawerLayout
         android:id="@+id/drawer_layout"
@@ -69,7 +70,7 @@
         android:id="@+id/viewpager"
         android:visibility="gone"
         android:layout_width="match_parent"
-        android:layout_height="40dp"
+        android:layout_height="75dp"
         android:background="@android:drawable/screen_background_dark_transparent"
         android:layout_alignParentBottom="true" />
 </RelativeLayout>

app/src/main/res/layout/extra_keys_right.xml

@@ -7,7 +7,6 @@
     android:imeOptions="actionSend|flagNoFullscreen"
     android:maxLines="1"
     android:inputType="text"
-    android:singleLine="true"
     android:textColor="@android:color/white"
     android:paddingTop="0dp"
     android:textCursorDrawable="@null"

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

@@ -7,14 +7,9 @@
    <string name="toggle_soft_keyboard">Keyboard</string>
    <string name="reset_terminal">Reset</string>
    <string name="style_terminal">Style</string>
-   <string name="toggle_fullscreen">Fullscreen</string>
    <string name="share_transcript_title">Terminal transcript</string>
    <string name="help">Help</string>
 
-   <string name="welcome_dialog_title">Welcome to Termux</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>
    <string name="bootstrap_error_title">Unable to install</string>
    <string name="bootstrap_error_body">Termux was unable to install the bootstrap packages.\n\nCheck your network connection and try again.</string>
@@ -34,10 +29,6 @@
   <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="copy_text">Copy</string>
-  <string name="text_selection_more">More…</string>
-
   <string name="kill_process">Kill process (%d)</string>
   <string name="confirm_kill_process">Really kill this session?</string>
 
@@ -50,8 +41,8 @@
   <string name="styling_install">Install</string>
 
   <string name="notification_action_exit">Exit</string>
-  <string name="notification_action_wakelock">Wake</string>
+  <string name="notification_action_wake_lock">Acquire wakelock</string>
-  <string name="notification_action_wifilock">Wifi</string>
+  <string name="notification_action_wake_unlock">Release wakelock</string>
 
   <string name="file_received_title">Save file in ~/downloads/</string>
   <string name="file_received_edit_button">Edit</string>

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

@@ -5,6 +5,7 @@
     <!-- NOTE: Cannot use "Light." since it hides the terminal scrollbar on the default black background. -->
     <style name="Theme.Termux" parent="@android:style/Theme.Material.Light.NoActionBar">
         <item name="android:statusBarColor">#000000</item>
+        <item name="android:colorPrimary">#FF000000</item>
         <item name="android:windowBackground">@android:color/black</item>
 
         <!-- Seen in buttons on left drawer: -->
@@ -13,6 +14,13 @@
         <!-- Avoid action mode toolbar pushing down terminal content when
              selecting text on pre-6.0 (non-floating toolbar). -->
         <item name="android:windowActionModeOverlay">true</item>
+
+        <item name="android:windowTranslucentStatus">true</item>
+        <item name="android:windowTranslucentNavigation">true</item>
+
+        <!-- https://developer.android.com/training/tv/start/start.html#transition-color -->
+        <item name="android:windowAllowReturnTransitionOverlap">true</item>
+        <item name="android:windowAllowEnterTransitionOverlap">true</item>
     </style>
 
 	<style name="TermuxAlertDialogStyle" parent="@android:style/Theme.Material.Light.Dialog.Alert">

app/src/main/res/xml/shortcuts.xml

@@ -0,0 +1,14 @@
+<shortcuts xmlns:tools="http://schemas.android.com/tools"
+           xmlns:android="http://schemas.android.com/apk/res/android">
+    <shortcut
+        android:shortcutId="new_session"
+        android:enabled="true"
+        android:icon="@drawable/ic_new_session"
+        android:shortcutShortLabel="@string/new_session"
+        tools:targetApi="n_mr1">
+        <intent
+            android:action="android.intent.action.RUN"
+            android:targetPackage="com.termux"
+            android:targetClass="com.termux.app.TermuxActivity"/>
+    </shortcut>
+</shortcuts>

art/copy-to-other-apps.sh

@@ -0,0 +1,20 @@
+#!/bin/sh
+
+for DENSITY in mdpi hdpi xhdpi xxhdpi xxxhdpi; do
+	FOLDER=../app/src/main/res/mipmap-$DENSITY
+
+	for FILE in ic_launcher ic_launcher_round; do
+		PNG=$FOLDER/$FILE.png
+
+		# Update other apps:
+		for APP in api boot styling tasker widget; do
+			APPDIR=../../termux-$APP
+			if [ -d $APPDIR ]; then
+				APP_FOLDER=$APPDIR/app/src/main/res/mipmap-$DENSITY
+				mkdir -p $APP_FOLDER
+				cp $PNG $APP_FOLDER/$FILE.png
+			fi
+		done
+	done
+
+done

art/feature-graphic.svg

@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
+<!--
+  This is a feature graphic:
+    https://support.google.com/googleplay/android-developer/answer/1078870
+  - 1024px by 500px, no alpha
+  - Don't include any copy or important visual information near the borders of the asset,
+    specifically near the bottom third of the frame.
+  - Try to center align any logo/copy information in the vertical and horizontal center of the frame.
+  - If adding text, use large font sizes.
+  - Your graphic may be displayed alone without the app icon.
+ -->
+<svg xmlns="http://www.w3.org/2000/svg"
+     version="1.1"
+     viewBox="0 0 1024 500">
+
+ <rect fill="#0" width="100%" height="100%" />
+
+ <text id="shell_prompt"
+       x="130"
+       y="330"
+       style="fill: #ffffff; font-size: 124px; font-family: Menlo;">
+       <!--
+   <tspan>$</tspan>
+   <tspan x="290">Termux</tspan>
+   <tspan x="734">█</tspan>
+   -->
+   <tspan>$ Termux █</tspan>
+ </text>
+
+</svg>

art/generate-feature-graphic.sh

@@ -0,0 +1,5 @@
+#!/bin/bash
+
+echo "Generating feature graphics to ~/termux-icons/termux-feature-graphic.png..."
+mkdir -p ~/termux-icons/
+rsvg-convert feature-graphic.svg > ~/termux-icons/feature-graphic.png

art/generate-launcher-images.sh

@@ -0,0 +1,20 @@
+#!/bin/sh
+
+for DENSITY in mdpi hdpi xhdpi xxhdpi xxxhdpi; do
+	case $DENSITY in
+		mdpi) SIZE=48;;
+		hdpi) SIZE=72;;
+		xhdpi) SIZE=96;;
+		xxhdpi) SIZE=144;;
+		xxxhdpi) SIZE=192;;
+	esac
+
+	FOLDER=../app/src/main/res/mipmap-$DENSITY
+	mkdir -p $FOLDER
+
+	for FILE in ic_launcher ic_launcher_round; do
+		PNG=$FOLDER/$FILE.png
+		rsvg-convert -w $SIZE -h $SIZE $FILE.svg > $PNG
+		zopflipng -y $PNG $PNG
+	done
+done

art/generate-tv-banner.sh

@@ -0,0 +1,9 @@
+#!/bin/bash
+
+echo "Generating feature graphics to ~/termux-icons/termux-feature-graphic.png..."
+mkdir -p ~/termux-icons/
+
+# The Android TV banner on google play (1280x720) has same aspect ratio
+# as the banner in the app (320x180).
+rsvg-convert -w 1280 -h 720 tv-banner.svg > ~/termux-icons/tv-banner.png
+rsvg-convert -w  320 -h 180 tv-banner.svg > ../app/src/main/res/drawable/banner.png

art/ic_launcher.svg

@@ -0,0 +1,26 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 48 48">
+
+    <!-- Screen and border. -->
+    <path fill="#000"
+          stroke="#BFCBCD"
+          stroke-width="2"
+          d="M9,6
+             l30,0
+             q3 0,3 3
+             l0,30
+             q0 3, -3 3
+             l-30,0
+             q-3 0, -3-3
+             l0 -30
+             q0 -3, 3 -3"
+    />
+
+    <!-- Block cursor. -->
+    <path fill="#FFF"
+          d="M14,14
+             l5,0
+             l0,10
+             l-5,0"
+    />
+
+</svg>

art/ic_launcher_round.svg

@@ -0,0 +1,21 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 48 48">
+
+    <!-- Screen and border. -->
+    <path fill="#000"
+          stroke="#BFCBCD"
+          stroke-width="2"
+          d="M 24, 24
+             m -21, 0
+             a 21,21 0 1,0 42,0
+             a 21,21 0 1,0 -42,0"
+    />
+
+    <!-- Block cursor. -->
+    <path fill="#FFF"
+          d="M15,15
+             l5,0
+             l0,10
+             l-5,0"
+    />
+
+</svg>

art/tv-banner.svg

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
+<!--
+  This is a tv banner graphic:
+    https://developer.android.com/design/tv/patterns.html#banner
+  - Size: 320 x 180 px, xhdpi resource in app
+  - Size: 1280 x 720 in google play.
+  - Text must be included in the image. If your app is available in more
+    than one language, you must provide versions of the banner image for each supported language.
+ -->
+<svg xmlns="http://www.w3.org/2000/svg"
+     version="1.1"
+     viewBox="0 0 1280 720">
+
+ <rect fill="#0" width="100%" height="100%" />
+
+ <text id="shell_prompt"
+       x="200"
+       y="410"
+       style="fill: #ffffff; font-size: 210px; font-family: Menlo, Monospace;">
+   <tspan>Termux  ▌</tspan>
+ </text>
+
+</svg>

build.gradle

@@ -1,19 +1,16 @@
-// Top-level build file where you can add configuration options common to all sub-projects/modules.
-
 buildscript {
     repositories {
         jcenter()
+        google()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.1.2'
+        classpath 'com.android.tools.build:gradle:3.1.3'
-
-        // NOTE: Do not place your application dependencies here; they belong
-        // in the individual module build.gradle files
     }
 }
 
 allprojects {
     repositories {
+        google()
         jcenter()
     }
 }

gradle.properties

@@ -12,6 +12,4 @@
 # This option should only be used with decoupled projects. More details, visit
 # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
 # org.gradle.parallel=true
-#Fri May 13 01:11:09 CEST 2016
 org.gradle.jvmargs=-Xmx2048M
-android.useDeprecatedNdk=true

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,5 @@
-#Sat Jul 23 17:08:29 CEST 2016
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.7-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-2.14.1-bin.zip

gradlew

@@ -1,4 +1,4 @@
-#!/usr/bin/env bash
+#!/usr/bin/env sh
 
 ##############################################################################
 ##
@@ -33,11 +33,11 @@ DEFAULT_JVM_OPTS=""
 # Use the maximum available, or set MAX_FD != -1 to use that value.
 MAX_FD="maximum"
 
-warn ( ) {
+warn () {
     echo "$*"
 }
 
-die ( ) {
+die () {
     echo
     echo "$*"
     echo
@@ -154,11 +154,19 @@ if $cygwin ; then
     esac
 fi
 
-# Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
+# Escape application args
-function splitJvmOpts() {
+save () {
-    JVM_OPTS=("$@")
+    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+    echo " "
 }
-eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
+APP_ARGS=$(save "$@")
-JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
 
-exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
+if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
+  cd "$(dirname "$0")"
+fi
+
+exec "$JAVACMD" "$@"

gradlew.bat

@@ -0,0 +1,84 @@
+@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
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@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=
+
+@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 Windows variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+: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

scripts/bintray-publish.gradle

@@ -0,0 +1,77 @@
+// Start https://raw.githubusercontent.com/nuuneoi/JCenter/master/installv1.gradle
+group = publishedGroupId // Maven Group ID for the artifact
+install {
+    repositories.mavenInstaller {
+        pom {
+            project {
+                packaging 'aar'
+                groupId publishedGroupId
+                artifactId artifact
+
+                name libraryName
+                description libraryDescription
+                url siteUrl
+
+                licenses {
+                    license {
+                        name 'GNU General Public License version 3'
+                        url 'https://opensource.org/licenses/gpl-3.0.html'
+                    }
+                }
+
+                developers {
+                    developer {
+                        id 'fornwall'
+                        name 'Fredrik Fornwall'
+                        email 'fredrik@fornwall.net'
+                    }
+                }
+                scm {
+                    connection gitUrl
+                    developerConnection gitUrl
+                    url siteUrl
+                }
+            }
+        }
+    }
+}
+// End https://raw.githubusercontent.com/nuuneoi/JCenter/master/installv1.gradle
+
+// Start https://raw.githubusercontent.com/nuuneoi/JCenter/master/bintrayv1.gradle
+apply plugin: 'com.jfrog.bintray'
+
+version = libraryVersion
+
+task sourcesJar(type: Jar) {
+	classifier = 'sources'
+	from android.sourceSets.main.java.srcDirs
+}
+
+artifacts {
+	archives sourcesJar
+}
+
+bintray {
+	user = System.getenv('BINTRAY_USER')
+	key = System.getenv('BINTRAY_API_KEY')
+
+	configurations = ['archives']
+	pkg {
+		repo = 'maven'
+		name = bintrayName
+		userOrg = 'termux'
+		desc = libraryDescription
+		websiteUrl = siteUrl
+		vcsUrl = gitUrl
+		licenses = ['GPL-3.0']
+		publish = true
+		publicDownloadNumbers = true
+		version {
+			desc = libraryDescription
+			gpg {
+				sign = false //Determines whether to GPG sign the files. The default is false
+				// passphrase = properties.getProperty("bintray.gpg.password")
+			}
+		}
+	}
+}

settings.gradle

@@ -1 +1 @@
-include ':app'
+include ':app', ':terminal-emulator', ':terminal-view'

terminal-emulator/build.gradle

@@ -0,0 +1,61 @@
+plugins {
+    id "com.jfrog.bintray" version "1.7.3"
+    id "com.github.dcendents.android-maven" version "2.0"
+}
+
+apply plugin: 'com.android.library'
+
+ext {
+    bintrayName = 'terminal-emulator'
+    publishedGroupId = 'com.termux'
+    libraryName = 'TerminalEmulator'
+    artifact = 'terminal-emulator'
+    libraryDescription = 'The terminal emulator used in Termux'
+    siteUrl = 'https://github.com/termux/termux'
+    gitUrl = 'https://github.com/termux/termux.git'
+    libraryVersion = '0.52'
+}
+
+android {
+    compileSdkVersion 27
+
+    defaultConfig {
+        minSdkVersion 21
+        targetSdkVersion 27
+
+        externalNativeBuild {
+            ndkBuild {
+                cFlags "-std=c11", "-Wall", "-Wextra", "-Werror", "-Os", "-fno-stack-protector", "-Wl,--gc-sections"
+            }
+        }
+
+        ndk {
+            abiFilters 'x86', 'x86_64', 'armeabi-v7a', 'arm64-v8a'
+        }
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+
+    externalNativeBuild {
+        ndkBuild {
+            path "src/main/jni/Android.mk"
+        }
+    }
+}
+
+tasks.withType(Test) {
+    testLogging {
+        events "started", "passed", "skipped", "failed"
+    }
+}
+
+dependencies {
+    testImplementation 'junit:junit:4.12'
+}
+
+apply from: '../scripts/bintray-publish.gradle'

terminal-emulator/proguard-rules.pro

@@ -0,0 +1,25 @@
+# Add project specific ProGuard rules here.
+# By default, the flags in this file are appended to flags specified
+# in /Users/fornwall/lib/android-sdk/tools/proguard/proguard-android.txt
+# You can edit the include path and order by changing the proguardFiles
+# directive in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# Add any project specific keep options here:
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

terminal-emulator/src/main/AndroidManifest.xml

@@ -0,0 +1,2 @@
+<manifest package="com.termux.terminal">
+</manifest>

terminal-emulator/src/main/java/com/termux/terminal/KeyHandler.java

@@ -26,9 +26,9 @@ import static android.view.KeyEvent.KEYCODE_F7;
 import static android.view.KeyEvent.KEYCODE_F8;
 import static android.view.KeyEvent.KEYCODE_F9;
 import static android.view.KeyEvent.KEYCODE_FORWARD_DEL;
-import static android.view.KeyEvent.KEYCODE_HOME;
 import static android.view.KeyEvent.KEYCODE_INSERT;
 import static android.view.KeyEvent.KEYCODE_MOVE_END;
+import static android.view.KeyEvent.KEYCODE_MOVE_HOME;
 import static android.view.KeyEvent.KEYCODE_NUMPAD_0;
 import static android.view.KeyEvent.KEYCODE_NUMPAD_1;
 import static android.view.KeyEvent.KEYCODE_NUMPAD_2;
@@ -66,7 +66,7 @@ public final class KeyHandler {
         // terminfo: http://pubs.opengroup.org/onlinepubs/7990989799/xcurses/terminfo.html
         // termcap: http://man7.org/linux/man-pages/man5/termcap.5.html
         TERMCAP_TO_KEYCODE.put("%i", KEYMOD_SHIFT | KEYCODE_DPAD_RIGHT);
-        TERMCAP_TO_KEYCODE.put("#2", KEYMOD_SHIFT | KEYCODE_HOME); // Shifted home
+        TERMCAP_TO_KEYCODE.put("#2", KEYMOD_SHIFT | KEYCODE_MOVE_HOME); // Shifted home
         TERMCAP_TO_KEYCODE.put("#4", KEYMOD_SHIFT | KEYCODE_DPAD_LEFT);
         TERMCAP_TO_KEYCODE.put("*7", KEYMOD_SHIFT | KEYCODE_MOVE_END); // Shifted end key
 
@@ -98,7 +98,7 @@ public final class KeyHandler {
         TERMCAP_TO_KEYCODE.put("kb", KEYCODE_DEL); // backspace key
 
         TERMCAP_TO_KEYCODE.put("kd", KEYCODE_DPAD_DOWN); // terminfo=kcud1, down-arrow key
-        TERMCAP_TO_KEYCODE.put("kh", KEYCODE_HOME);
+        TERMCAP_TO_KEYCODE.put("kh", KEYCODE_MOVE_HOME);
         TERMCAP_TO_KEYCODE.put("kl", KEYCODE_DPAD_LEFT);
         TERMCAP_TO_KEYCODE.put("kr", KEYCODE_DPAD_RIGHT);
 
@@ -107,7 +107,7 @@ public final class KeyHandler {
         // t_K3 <kPageUp> keypad page-up key
         // t_K4 <kEnd> keypad end key
         // t_K5 <kPageDown> keypad page-down key
-        TERMCAP_TO_KEYCODE.put("K1", KEYCODE_HOME);
+        TERMCAP_TO_KEYCODE.put("K1", KEYCODE_MOVE_HOME);
         TERMCAP_TO_KEYCODE.put("K3", KEYCODE_PAGE_UP);
         TERMCAP_TO_KEYCODE.put("K4", KEYCODE_MOVE_END);
         TERMCAP_TO_KEYCODE.put("K5", KEYCODE_PAGE_DOWN);
@@ -162,7 +162,9 @@ public final class KeyHandler {
             case KEYCODE_DPAD_LEFT:
                 return (keyMode == 0) ? (cursorApp ? "\033OD" : "\033[D") : transformForModifiers("\033[1", keyMode, 'D');
 
-            case KEYCODE_HOME:
+            case KEYCODE_MOVE_HOME:
+                // Note that KEYCODE_HOME is handled by the system and never delivered to applications.
+                // On a Logitech k810 keyboard KEYCODE_MOVE_HOME is sent by FN+LeftArrow.
                 return (keyMode == 0) ? (cursorApp ? "\033OH" : "\033[H") : transformForModifiers("\033[1", keyMode, 'H');
             case KEYCODE_MOVE_END:
                 return (keyMode == 0) ? (cursorApp ? "\033OF" : "\033[F") : transformForModifiers("\033[1", keyMode, 'F');
@@ -217,9 +219,6 @@ public final class KeyHandler {
             case KEYCODE_FORWARD_DEL:
                 return transformForModifiers("\033[3", keyMode, '~');
 
-            case KEYCODE_NUMPAD_DOT:
-                return keypadApplication ? "\033On" : "\033[3~";
-
             case KEYCODE_PAGE_UP:
                 return "\033[5~";
             case KEYCODE_PAGE_DOWN:
@@ -249,12 +248,14 @@ public final class KeyHandler {
                 return keypadApplication ? transformForModifiers("\033O", keyMode, 'k') : "+";
             case KEYCODE_NUMPAD_COMMA:
                 return ",";
+            case KEYCODE_NUMPAD_DOT:
+                return keypadApplication ? "\033On" : ".";
             case KEYCODE_NUMPAD_SUBTRACT:
                 return keypadApplication ? transformForModifiers("\033O", keyMode, 'm') : "-";
             case KEYCODE_NUMPAD_DIVIDE:
                 return keypadApplication ? transformForModifiers("\033O", keyMode, 'o') : "/";
             case KEYCODE_NUMPAD_0:
-                return keypadApplication ? transformForModifiers("\033O", keyMode, 'p') : "1";
+                return keypadApplication ? transformForModifiers("\033O", keyMode, 'p') : "0";
             case KEYCODE_NUMPAD_1:
                 return keypadApplication ? transformForModifiers("\033O", keyMode, 'q') : "1";
             case KEYCODE_NUMPAD_2:

terminal-emulator/src/main/java/com/termux/terminal/TerminalBuffer.java

@@ -3,7 +3,7 @@ package com.termux.terminal;
 /**
  * A circular buffer of {@link TerminalRow}:s which keeps notes about what is visible on a logical screen and the scroll
  * history.
- * <p/>
+ * <p>
  * See {@link #externalToInternalRow(int)} for how to map from logical screen rows to array indices.
  */
 public final class TerminalBuffer {
@@ -92,22 +92,20 @@ public final class TerminalBuffer {
 
     /**
      * Convert a row value from the public external coordinate system to our internal private coordinate system.
-     * <p/>
+     *
-     * <ul>
-     * <li>External coordinate system: -mActiveTranscriptRows to mScreenRows-1, with the screen being 0..mScreenRows-1.
-     * <li>Internal coordinate system: the mScreenRows lines starting at mScreenFirstRow comprise the screen, while the
-     * mActiveTranscriptRows lines ending at mScreenFirstRow-1 form the transcript (as a circular buffer).
-     * </ul>
-     * <p/>
-     * External <---> Internal:
-     * <p/>
      * <pre>
-     * [ ...                            ]           [ ...                                     ]
+     * - External coordinate system: -mActiveTranscriptRows to mScreenRows-1, with the screen being 0..mScreenRows-1.
-     * [ -mActiveTranscriptRows         ]           [ mScreenFirstRow - mActiveTranscriptRows ]
+     * - Internal coordinate system: the mScreenRows lines starting at mScreenFirstRow comprise the screen, while the
-     * [ ...                            ]           [ ...                                     ]
+     *   mActiveTranscriptRows lines ending at mScreenFirstRow-1 form the transcript (as a circular buffer).
-     * [ 0 (visible screen starts here) ]  <----->  [ mScreenFirstRow                         ]
+     *
-     * [ ...                            ]           [ ...                                     ]
+     * External ↔ Internal:
-     * [ mScreenRows-1                  ]           [ mScreenFirstRow + mScreenRows-1         ]
+     *
+     * [ ...                            ]     [ ...                                     ]
+     * [ -mActiveTranscriptRows         ]     [ mScreenFirstRow - mActiveTranscriptRows ]
+     * [ ...                            ]     [ ...                                     ]
+     * [ 0 (visible screen starts here) ]  ↔  [ mScreenFirstRow                         ]
+     * [ ...                            ]     [ ...                                     ]
+     * [ mScreenRows-1                  ]     [ mScreenFirstRow + mScreenRows-1         ]
      * </pre>
      *
      * @param externalRow a row in the external coordinate system.
@@ -140,7 +138,7 @@ public final class TerminalBuffer {
      * @param newRows    The number of rows the screen should have.
      * @param cursor     An int[2] containing the (column, row) cursor location.
      */
-    public void resize(int newColumns, int newRows, int newTotalRows, int[] cursor, int currentStyle, boolean altScreen) {
+    public void resize(int newColumns, int newRows, int newTotalRows, int[] cursor, long currentStyle, boolean altScreen) {
         // newRows > mTotalRows should not normally happen since mTotalRows is TRANSCRIPT_ROWS (10000):
         if (newColumns == mColumns && newRows <= mTotalRows) {
             // Fast resize where just the rows changed.
@@ -237,7 +235,7 @@ public final class TerminalBuffer {
                 }
 
                 int currentOldCol = 0;
-                int styleAtCol = 0;
+                long styleAtCol = 0;
                 for (int i = 0; i < lastNonSpaceIndex; i++) {
                     // Note that looping over java character, not cells.
                     char c = oldLine.mText[i];
@@ -321,7 +319,7 @@ public final class TerminalBuffer {
      * @param bottomMargin One line after the last line that is scrolled.
      * @param style        the style for the newly exposed line.
      */
-    public void scrollDownOneLine(int topMargin, int bottomMargin, int style) {
+    public void scrollDownOneLine(int topMargin, int bottomMargin, long style) {
         if (topMargin > bottomMargin - 1 || topMargin < 0 || bottomMargin > mScreenRows)
             throw new IllegalArgumentException("topMargin=" + topMargin + ", bottomMargin=" + bottomMargin + ", mScreenRows=" + mScreenRows);
 
@@ -374,7 +372,7 @@ public final class TerminalBuffer {
      * InvalidParemeterException will be thrown. Typically this is called with a "val" argument of 32 to clear a block
      * of characters.
      */
-    public void blockSet(int sx, int sy, int w, int h, int val, int style) {
+    public void blockSet(int sx, int sy, int w, int h, int val, long style) {
         if (sx < 0 || sx + w > mColumns || sy < 0 || sy + h > mScreenRows) {
             throw new IllegalArgumentException(
                 "Illegal arguments! blockSet(" + sx + ", " + sy + ", " + w + ", " + h + ", " + val + ", " + mColumns + ", " + mScreenRows + ")");
@@ -388,14 +386,14 @@ public final class TerminalBuffer {
         return (mLines[row] == null) ? (mLines[row] = new TerminalRow(mColumns, 0)) : mLines[row];
     }
 
-    public void setChar(int column, int row, int codePoint, int style) {
+    public void setChar(int column, int row, int codePoint, long style) {
         if (row >= mScreenRows || column >= mColumns)
             throw new IllegalArgumentException("row=" + row + ", column=" + column + ", mScreenRows=" + mScreenRows + ", mColumns=" + mColumns);
         row = externalToInternalRow(row);
         allocateFullLineIfNecessary(row).setChar(column, codePoint, style);
     }
 
-    public int getStyleAt(int externalRow, int column) {
+    public long getStyleAt(int externalRow, int column) {
         return allocateFullLineIfNecessary(externalToInternalRow(externalRow)).getStyle(column);
     }
 
@@ -407,7 +405,7 @@ public final class TerminalBuffer {
             int startOfLine = (rectangular || y == top) ? left : leftMargin;
             int endOfLine = (rectangular || y + 1 == bottom) ? right : rightMargin;
             for (int x = startOfLine; x < endOfLine; x++) {
-                int currentStyle = line.getStyle(x);
+                long currentStyle = line.getStyle(x);
                 int foreColor = TextStyle.decodeForeColor(currentStyle);
                 int backColor = TextStyle.decodeBackColor(currentStyle);
                 int effect = TextStyle.decodeEffect(currentStyle);

terminal-emulator/src/main/java/com/termux/terminal/TerminalColorScheme.java

@@ -57,7 +57,7 @@ public final class TerminalColorScheme {
         0xff808080, 0xff8a8a8a, 0xff949494, 0xff9e9e9e, 0xffa8a8a8, 0xffb2b2b2, 0xffbcbcbc, 0xffc6c6c6, 0xffd0d0d0, 0xffdadada, 0xffe4e4e4, 0xffeeeeee,
 
         // COLOR_INDEX_DEFAULT_FOREGROUND, COLOR_INDEX_DEFAULT_BACKGROUND and COLOR_INDEX_DEFAULT_CURSOR:
-        0xffffffff, 0xff000000, 0xffffffff};
+        0xffffffff, 0xff000000, 0xffA9AAA9};
 
     public final int[] mDefaultColors = new int[TextStyle.NUM_INDEXED_COLORS];
 

terminal-emulator/src/main/java/com/termux/terminal/TerminalEmulator.java

@@ -12,7 +12,7 @@ import java.util.Stack;
 /**
  * Renders text into a screen. Contains all the terminal-specific knowledge and state. Emulates a subset of the X Window
  * System xterm terminal, which in turn is an emulator for a subset of the Digital Equipment Corporation vt100 terminal.
- * <p/>
+ * <p>
  * References:
  * <ul>
  * <li>http://invisible-island.net/xterm/ctlseqs/ctlseqs.html</li>
@@ -56,8 +56,6 @@ public final class TerminalEmulator {
     private static final int ESC_SELECT_LEFT_PAREN = 3;
     /** Escape processing: Have seen ESC and a character-set-select ) char */
     private static final int ESC_SELECT_RIGHT_PAREN = 4;
-    /** Escape processing: Have seen ESC and a character-set-select + char */
-    // private static final int ESC_SELECT_PLUS = 5;
     /** Escape processing: "ESC [" or CSI (Control Sequence Introducer). */
     private static final int ESC_CSI = 6;
     /** Escape processing: ESC [ ? */
@@ -145,7 +143,7 @@ public final class TerminalEmulator {
     /**
      * The alternate screen buffer, exactly as large as the display and contains no additional saved lines (so that when
      * the alternate screen buffer is active, you cannot scroll back to view saved lines).
-     * <p/>
+     * <p>
      * See http://www.xfree86.org/current/ctlseqs.html#The%20Alternate%20Screen%20Buffer
      */
     final TerminalBuffer mAltBuffer;
@@ -206,10 +204,15 @@ public final class TerminalEmulator {
      */
     private boolean mAboutToAutoWrap;
 
-    /** Foreground and background color indices, 0..255. */
+    /**
+     * Current foreground and background colors. Can either be a color index in [0,259] or a truecolor (24-bit) value.
+     * For a 24-bit value the top byte (0xff000000) is set.
+     *
+     * @see TextStyle
+     */
     int mForeColor, mBackColor;
 
-    /** Current TextStyle effect */
+    /** Current {@link TextStyle} effect. */
     private int mEffect;
 
     /**
@@ -220,6 +223,7 @@ public final class TerminalEmulator {
 
     private byte mUtf8ToFollow, mUtf8Index;
     private final byte[] mUtf8InputBuffer = new byte[4];
+    private int mLastEmittedCodePoint = -1;
 
     public final TerminalColors mColors = new TerminalColors();
 
@@ -297,6 +301,11 @@ public final class TerminalEmulator {
      * @param mouseButton one of the MOUSE_* constants of this class.
      */
     public void sendMouseEvent(int mouseButton, int column, int row, boolean pressed) {
+        if (column < 1) column = 1;
+        if (column > mColumns) column = mColumns;
+        if (row < 1) row = 1;
+        if (row > mRows) row = mRows;
+
         if (mouseButton == MOUSE_LEFT_BUTTON_MOVED && !isDecsetInternalBitSet(DECSET_BIT_MOUSE_TRACKING_BUTTON_EVENT)) {
             // Do not send tracking.
         } else if (isDecsetInternalBitSet(DECSET_BIT_MOUSE_PROTOCOL_SGR)) {
@@ -304,7 +313,7 @@ public final class TerminalEmulator {
         } else {
             mouseButton = pressed ? mouseButton : 3; // 3 for release of all buttons.
             // Clip to screen, and clip to the limits of 8-bit data.
-            boolean out_of_bounds = column < 1 || row < 1 || column > mColumns || row > mRows || column > 255 - 32 || row > 255 - 32;
+            boolean out_of_bounds = column > 255 - 32 || row > 255 - 32;
             if (!out_of_bounds) {
                 byte[] data = {'\033', '[', 'M', (byte) (32 + mouseButton), (byte) (32 + column), (byte) (32 + row)};
                 mSession.write(data, 0, data.length);
@@ -416,10 +425,11 @@ public final class TerminalEmulator {
                     mUtf8Index = mUtf8ToFollow = 0;
 
                     if (codePoint >= 0x80 && codePoint <= 0x9F) {
-                        // Sequence decoded to a C1 control character which is the same as escape followed by
+                        // Sequence decoded to a C1 control character which we ignore. They are
-                        // ((code & 0x7F) + 0x40).
+                        // not used nowadays and increases the risk of messing up the terminal state
-                        processCodePoint(/* escape (hexadecimal=0x1B, octal=033): */27);
+                        // on binary input. XTerm does not allow them in utf-8:
-                        processCodePoint((codePoint & 0x7F) + 0x40);
+                        // "It is not possible to use a C1 control obtained from decoding the
+                        // UTF-8 text" - http://invisible-island.net/xterm/ctlseqs/ctlseqs.html
                     } else {
                         switch (Character.getType(codePoint)) {
                             case Character.UNASSIGNED:
@@ -611,7 +621,7 @@ public final class TerminalEmulator {
                                     int left = Math.min(getArg(argIndex++, 1, true) + effectiveLeftMargin, effectiveRightMargin + 1);
                                     int bottom = Math.min(getArg(argIndex++, mRows, true) + effectiveTopMargin, effectiveBottomMargin);
                                     int right = Math.min(getArg(argIndex, mColumns, true) + effectiveLeftMargin, effectiveRightMargin);
-                                    int style = getStyle();
+                                    long style = getStyle();
                                     for (int row = top - 1; row < bottom; row++)
                                         for (int col = left - 1; col < right; col++)
                                             if (!selective || (TextStyle.decodeEffect(mScreen.getStyleAt(row, col)) & TextStyle.CHARACTER_ATTRIBUTE_PROTECTED) == 0)
@@ -623,12 +633,13 @@ public final class TerminalEmulator {
                             case 't': // "${CSI}${TOP}${LEFT}${BOTTOM}${RIGHT}${ATTRIBUTES}$t"
                                 // Reverse attributes in rectangular area (DECRARA - http://www.vt100.net/docs/vt510-rm/DECRARA).
                                 boolean reverse = b == 't';
-                                // FIXME: "coordinates of the rectangular area are affected by the setting of origin mode (DECOM)".s
+                                // FIXME: "coordinates of the rectangular area are affected by the setting of origin mode (DECOM)".
                                 int top = Math.min(getArg(0, 1, true) - 1, effectiveBottomMargin) + effectiveTopMargin;
                                 int left = Math.min(getArg(1, 1, true) - 1, effectiveRightMargin) + effectiveLeftMargin;
                                 int bottom = Math.min(getArg(2, mRows, true) + 1, effectiveBottomMargin - 1) + effectiveTopMargin;
                                 int right = Math.min(getArg(3, mColumns, true) + 1, effectiveRightMargin - 1) + effectiveLeftMargin;
                                 if (mArgIndex >= 4) {
+                                    if (mArgIndex >= mArgs.length) mArgIndex = mArgs.length - 1;
                                     for (int i = 4; i <= mArgIndex; i++) {
                                         int bits = 0;
                                         boolean setOrClear = true; // True if setting, false if clearing.
@@ -717,7 +728,6 @@ public final class TerminalEmulator {
                         }
                         break;
                     case ESC_PERCENT:
-                        Log.i(EmulatorDebug.LOG_TAG, "Ignoring character set sequence 'ESC % " + (char) b + "'");
                         break;
                     case ESC_OSC:
                         doOsc(b);
@@ -953,7 +963,7 @@ public final class TerminalEmulator {
                         unknownSequence(b);
                         break;
                 }
-                int style = getStyle();
+                long style = getStyle();
                 for (int row = startRow; row < endRow; row++) {
                     for (int col = startCol; col < endCol; col++) {
                         if ((TextStyle.decodeEffect(mScreen.getStyleAt(row, col)) & TextStyle.CHARACTER_ATTRIBUTE_PROTECTED) == 0)
@@ -963,6 +973,7 @@ public final class TerminalEmulator {
                 break;
             case 'h':
             case 'l':
+                if (mArgIndex >= mArgs.length) mArgIndex = mArgs.length - 1;
                 for (int i = 0; i <= mArgIndex; i++)
                     doDecSetOrReset(b == 'h', mArgs[i]);
                 break;
@@ -979,6 +990,7 @@ public final class TerminalEmulator {
                 break;
             case 'r':
             case 's':
+                if (mArgIndex >= mArgs.length) mArgIndex = mArgs.length - 1;
                 for (int i = 0; i <= mArgIndex; i++) {
                     int externalBit = mArgs[i];
                     int internalBit = mapDecSetBitToInternalBit(externalBit);
@@ -1185,12 +1197,20 @@ public final class TerminalEmulator {
     }
 
     private void doLinefeed() {
+        boolean belowScrollingRegion = mCursorRow >= mBottomMargin;
         int newCursorRow = mCursorRow + 1;
-        if (newCursorRow >= mBottomMargin) {
+        if (belowScrollingRegion) {
-            scrollDownOneLine();
+            // Move down (but not scroll) as long as we are above the last row.
-            newCursorRow = mBottomMargin - 1;
+            if (mCursorRow != mRows - 1) {
+                setCursorRow(newCursorRow);
+            }
+        } else {
+            if (newCursorRow == mBottomMargin) {
+                scrollDownOneLine();
+                newCursorRow = mBottomMargin - 1;
+            }
+            setCursorRow(newCursorRow);
         }
-        setCursorRow(newCursorRow);
     }
 
     private void continueSequence(int state) {
@@ -1305,6 +1325,8 @@ public final class TerminalEmulator {
         state.mSavedCursorRow = mCursorRow;
         state.mSavedCursorCol = mCursorCol;
         state.mSavedEffect = mEffect;
+        state.mSavedForeColor = mForeColor;
+        state.mSavedBackColor = mBackColor;
         state.mSavedDecFlags = mCurrentDecSetFlags;
         state.mUseLineDrawingG0 = mUseLineDrawingG0;
         state.mUseLineDrawingG1 = mUseLineDrawingG1;
@@ -1316,6 +1338,8 @@ public final class TerminalEmulator {
         SavedScreenState state = (mScreen == mMainBuffer) ? mSavedStateMain : mSavedStateAlt;
         setCursorRowCol(state.mSavedCursorRow, state.mSavedCursorCol);
         mEffect = state.mSavedEffect;
+        mForeColor = state.mSavedForeColor;
+        mBackColor = state.mSavedBackColor;
         int mask = (DECSET_BIT_AUTOWRAP | DECSET_BIT_ORIGIN_MODE);
         mCurrentDecSetFlags = (mCurrentDecSetFlags & ~mask) | (state.mSavedDecFlags & mask);
         mUseLineDrawingG0 = state.mUseLineDrawingG0;
@@ -1499,6 +1523,11 @@ public final class TerminalEmulator {
             case '`': // Horizontal position absolute (HPA - http://www.vt100.net/docs/vt510-rm/HPA).
                 setCursorColRespectingOriginMode(getArg0(1) - 1);
                 break;
+            case 'b': // Repeat the preceding graphic character Ps times (REP).
+                if (mLastEmittedCodePoint == -1) break;
+                final int numRepeat = getArg0(1);
+                for (int i = 0; i < numRepeat; i++) emitCodePoint(mLastEmittedCodePoint);
+                break;
             case 'c': // Primary Device Attributes (http://www.vt100.net/docs/vt510-rm/DA1) if argument is missing or zero.
                 // The important part that may still be used by some (tmux stores this value but does not currently use it)
                 // is the first response parameter identifying the terminal service class, where we send 64 for "vt420".
@@ -1555,7 +1584,7 @@ public final class TerminalEmulator {
                 break;
             case 'r': // "CSI${top};${bottom}r" - set top and bottom Margins (DECSTBM).
             {
-                // http://www.vt100.net/docs/vt510-rm/DECSTBM
+                // https://vt100.net/docs/vt510-rm/DECSTBM.html
                 // The top margin defaults to 1, the bottom margin defaults to mRows.
                 // The escape sequence numbers top 1..23, but we number top 0..22.
                 // The escape sequence numbers bottom 2..24, and so do we (because we use a zero based numbering
@@ -1564,6 +1593,7 @@ public final class TerminalEmulator {
                 // Also require that top + 2 <= bottom.
                 mTopMargin = Math.max(0, Math.min(getArg0(1) - 1, mRows - 2));
                 mBottomMargin = Math.max(mTopMargin + 2, Math.min(getArg1(mRows), mRows));
+
                 // DECSTBM moves the cursor to column 1, line 1 of the page respecting origin mode.
                 setCursorPosition(0, 0);
             }
@@ -1637,6 +1667,7 @@ public final class TerminalEmulator {
 
     /** Select Graphic Rendition (SGR) - see http://en.wikipedia.org/wiki/ANSI_escape_code#graphics. */
     private void selectGraphicRendition() {
+        if (mArgIndex >= mArgs.length) mArgIndex = mArgs.length - 1;
         for (int i = 0; i <= mArgIndex; i++) {
             int code = mArgs[i];
             if (code < 0) {
@@ -1687,43 +1718,42 @@ public final class TerminalEmulator {
             } else if (code >= 30 && code <= 37) {
                 mForeColor = code - 30;
             } else if (code == 38 || code == 48) {
-                // ISO-8613-3 controls to set foreground (38) or background (48) colors.
+                // Extended set foreground(38)/background (48) color.
-                // P_s = (38|48) ; 2 ; P_r ; P_g ; P_b => Set to RGB value in range (0-255).
+                // This is followed by either "2;$R;$G;$B" to set a 24-bit color or
-                // P_s = (38|48) ; 5 ; P_s => Set to indexed color.
+                // "5;$INDEX" to set an indexed color.
-                if (i + 2 <= mArgIndex) {
+                if (i + 2 > mArgIndex) continue;
-                    int color = -1;
+                int firstArg = mArgs[i + 1];
-                    int firstArg = mArgs[i + 1];
+                if (firstArg == 2) {
-                    if (firstArg == 2) {
+                    if (i + 4 > mArgIndex) {
-                        if (i + 4 > mArgIndex) {
+                        Log.w(EmulatorDebug.LOG_TAG, "Too few CSI" + code + ";2 RGB arguments");
-                            Log.w(EmulatorDebug.LOG_TAG, "Too few CSI" + code + ";2 RGB arguments");
-                        } else {
-                            int red = mArgs[i + 2], green = mArgs[i + 3], blue = mArgs[i + 4];
-                            if (red < 0 || green < 0 || blue < 0 || red > 255 || green > 255 || blue > 255) {
-                                finishSequenceAndLogError("Invalid RGB: " + red + "," + green + "," + blue);
-                            } else {
-                                // TODO: Implement 24 bit color.
-                                finishSequenceAndLogError("Unimplemented RGB: " + red + "," + green + "," + blue);
-                            }
-                            i += 4; // "2;P_r;P_g;P_r"
-                        }
-                    } else if (firstArg == 5) {
-                        color = mArgs[i + 2];
-                        i += 2; // "5;P_s"
                     } else {
-                        finishSequenceAndLogError("Invalid ISO-8613-3 SGR first argument: " + firstArg);
+                        int red = mArgs[i + 2], green = mArgs[i + 3], blue = mArgs[i + 4];
-                    }
+                        if (red < 0 || green < 0 || blue < 0 || red > 255 || green > 255 || blue > 255) {
-                    if (i != -1) {
+                            finishSequenceAndLogError("Invalid RGB: " + red + "," + green + "," + blue);
-                        if (color >= 0 && color < TextStyle.NUM_INDEXED_COLORS) {
-                            if (code == 38) {
-                                mForeColor = color;
-                            } else {
-                                mBackColor = color;
-                            }
                         } else {
-                            if (LOG_ESCAPE_SEQUENCES)
+                            int argbColor = 0xff000000 | (red << 16) | (green << 8) | blue;
-                                Log.w(EmulatorDebug.LOG_TAG, "Invalid color index: " + color);
+                            if (code == 38) {
+                                mForeColor = argbColor;
+                            } else {
+                                mBackColor = argbColor;
+                            }
                         }
+                        i += 4; // "2;P_r;P_g;P_r"
                     }
+                } else if (firstArg == 5) {
+                    int color = mArgs[i + 2];
+                    i += 2; // "5;P_s"
+                    if (color >= 0 && color < TextStyle.NUM_INDEXED_COLORS) {
+                        if (code == 38) {
+                            mForeColor = color;
+                        } else {
+                            mBackColor = color;
+                        }
+                    } else {
+                        if (LOG_ESCAPE_SEQUENCES) Log.w(EmulatorDebug.LOG_TAG, "Invalid color index: " + color);
+                    }
+                } else {
+                    finishSequenceAndLogError("Invalid ISO-8613-3 SGR first argument: " + firstArg);
                 }
             } else if (code == 39) { // Set default foreground color.
                 mForeColor = TextStyle.COLOR_INDEX_FOREGROUND;
@@ -1924,7 +1954,7 @@ public final class TerminalEmulator {
         mScreen.blockSet(sx, sy, w, h, ' ', getStyle());
     }
 
-    private int getStyle() {
+    private long getStyle() {
         return TextStyle.encode(mForeColor, mBackColor, mEffect);
     }
 
@@ -2048,6 +2078,7 @@ public final class TerminalEmulator {
             buf.append(", escapeState=");
             buf.append(mEscapeState);
             boolean firstArg = true;
+            if (mArgIndex >= mArgs.length) mArgIndex = mArgs.length - 1;
             for (int i = 0; i <= mArgIndex; i++) {
                 int value = mArgs[i];
                 if (value >= 0) {
@@ -2080,6 +2111,7 @@ public final class TerminalEmulator {
      * @param codePoint The code point of the character to display
      */
     private void emitCodePoint(int codePoint) {
+        mLastEmittedCodePoint = codePoint;
         if (mUseLineDrawingUsesG0 ? mUseLineDrawingG0 : mUseLineDrawingG1) {
             // http://www.vt100.net/docs/vt102-ug/table5-15.html.
             switch (codePoint) {
@@ -2262,8 +2294,8 @@ public final class TerminalEmulator {
         mBottomMargin = mRows;
         mRightMargin = mColumns;
         mAboutToAutoWrap = false;
-        mForeColor = TextStyle.COLOR_INDEX_FOREGROUND;
+        mForeColor = mSavedStateMain.mSavedForeColor = mSavedStateAlt.mSavedForeColor = TextStyle.COLOR_INDEX_FOREGROUND;
-        mBackColor = TextStyle.COLOR_INDEX_BACKGROUND;
+        mBackColor = mSavedStateMain.mSavedBackColor = mSavedStateAlt.mSavedBackColor = TextStyle.COLOR_INDEX_BACKGROUND;
         setDefaultTabStops();
 
         mUseLineDrawingG0 = mUseLineDrawingG1 = false;
@@ -2306,6 +2338,9 @@ public final class TerminalEmulator {
     public void paste(String text) {
         // First: Always remove escape key and C1 control characters [0x80,0x9F]:
         text = text.replaceAll("(\u001B|[\u0080-\u009F])", "");
+        // Second: Replace all newlines (\n) or CRLF (\r\n) with carriage returns (\r).
+        text = text.replaceAll("\r?\n", "\r");
+
         // Then: Implement bracketed paste mode if enabled:
         boolean bracketed = isDecsetInternalBitSet(DECSET_BIT_BRACKETED_PASTE_MODE);
         if (bracketed) mSession.write("\033[200~");
@@ -2317,7 +2352,7 @@ public final class TerminalEmulator {
     static final class SavedScreenState {
         /** Saved state of the cursor position, Used to implement the save/restore cursor position escape sequences. */
         int mSavedCursorRow, mSavedCursorCol;
-        int mSavedEffect;
+        int mSavedEffect, mSavedForeColor, mSavedBackColor;
         int mSavedDecFlags;
         boolean mUseLineDrawingG0, mUseLineDrawingG1, mUseLineDrawingUsesG0 = true;
     }

terminal-emulator/src/main/java/com/termux/terminal/TerminalRow.java

@@ -4,7 +4,7 @@ import java.util.Arrays;
 
 /**
  * A row in a terminal, composed of a fixed number of cells.
- * <p/>
+ * <p>
  * The text in the row is stored in a char[] array, {@link #mText}, for quick access during rendering.
  */
 public final class TerminalRow {
@@ -20,18 +20,21 @@ public final class TerminalRow {
     /** If this row has been line wrapped due to text output at the end of line. */
     boolean mLineWrap;
     /** The style bits of each cell in the row. See {@link TextStyle}. */
-    final int[] mStyle;
+    final long[] mStyle;
+    /** If this row might contain chars with width != 1, used for deactivating fast path */
+    boolean mHasNonOneWidthOrSurrogateChars;
 
     /** Construct a blank row (containing only whitespace, ' ') with a specified style. */
-    public TerminalRow(int columns, int style) {
+    public TerminalRow(int columns, long style) {
         mColumns = columns;
         mText = new char[(int) (SPARE_CAPACITY_FACTOR * columns)];
-        mStyle = new int[columns];
+        mStyle = new long[columns];
         clear(style);
     }
 
     /** NOTE: The sourceX2 is exclusive. */
     public void copyInterval(TerminalRow line, int sourceX1, int sourceX2, int destinationX) {
+        mHasNonOneWidthOrSurrogateChars |= line.mHasNonOneWidthOrSurrogateChars;
         final int x1 = line.findStartOfColumn(sourceX1);
         final int x2 = line.findStartOfColumn(sourceX2);
         boolean startingFromSecondHalfOfWideChar = (sourceX1 > 0 && line.wideDisplayCharacterStartingAt(sourceX1 - 1));
@@ -112,17 +115,29 @@ public final class TerminalRow {
         return false;
     }
 
-    public void clear(int style) {
+    public void clear(long style) {
         Arrays.fill(mText, ' ');
         Arrays.fill(mStyle, style);
         mSpaceUsed = (short) mColumns;
+        mHasNonOneWidthOrSurrogateChars = false;
     }
 
     // https://github.com/steven676/Android-Terminal-Emulator/commit/9a47042620bec87617f0b4f5d50568535668fe26
-    public void setChar(int columnToSet, int codePoint, int style) {
+    public void setChar(int columnToSet, int codePoint, long style) {
         mStyle[columnToSet] = style;
 
         final int newCodePointDisplayWidth = WcWidth.width(codePoint);
+
+        // Fast path when we don't have any chars with width != 1
+        if (!mHasNonOneWidthOrSurrogateChars) {
+            if (codePoint >= Character.MIN_SUPPLEMENTARY_CODE_POINT || newCodePointDisplayWidth != 1) {
+                mHasNonOneWidthOrSurrogateChars = true;
+            } else {
+                mText[columnToSet] = (char) codePoint;
+                return;
+            }
+        }
+
         final boolean newIsCombining = newCodePointDisplayWidth <= 0;
 
         boolean wasExtraColForWideChar = (columnToSet > 0) && wideDisplayCharacterStartingAt(columnToSet - 1);
@@ -225,7 +240,7 @@ public final class TerminalRow {
         return true;
     }
 
-    public final int getStyle(int column) {
+    public final long getStyle(int column) {
         return mStyle[column];
     }
 

terminal-emulator/src/main/java/com/termux/terminal/TerminalSession.java

@@ -19,13 +19,13 @@ import java.util.UUID;
 
 /**
  * A terminal session, consisting of a process coupled to a terminal interface.
- * <p/>
+ * <p>
  * The subprocess will be executed by the constructor, and when the size is made known by a call to
  * {@link #updateSize(int, int)} terminal emulation will begin and threads will be spawned to handle the subprocess I/O.
  * All terminal emulation and callback methods will be performed on the main thread.
- * <p/>
+ * <p>
  * The child process may be exited forcefully by using the {@link #finishIfRunning()} method.
- * <p/>
+ * <p>
  * NOTE: The terminal session may outlive the EmulatorView, so be careful with callbacks!
  */
 public final class TerminalSession extends TerminalOutput {
@@ -123,12 +123,12 @@ public final class TerminalSession extends TerminalOutput {
                 String exitDescription = "\r\n[Process completed";
                 if (exitCode > 0) {
                     // Non-zero process exit.
-                    exitDescription += " with code " + exitCode;
+                    exitDescription += " (code " + exitCode + ")";
                 } else if (exitCode < 0) {
                     // Negated signal.
-                    exitDescription += " with signal " + (-exitCode);
+                    exitDescription += " (signal " + (-exitCode) + ")";
                 }
-                exitDescription += " - press Enter to close]";
+                exitDescription += " - press Enter]";
 
                 byte[] bytesToWrite = exitDescription.getBytes(StandardCharsets.UTF_8);
                 mEmulator.append(bytesToWrite, bytesToWrite.length);
@@ -173,7 +173,7 @@ public final class TerminalSession extends TerminalOutput {
      * @param rows    The number of rows in the terminal window.
      */
     public void initializeEmulator(int columns, int rows) {
-        mEmulator = new TerminalEmulator(this, columns, rows, /* transcript= */5000);
+        mEmulator = new TerminalEmulator(this, columns, rows, /* transcript= */2000);
 
         int[] processId = new int[1];
         mTerminalFileDescriptor = JNI.createSubprocess(mShellPath, mCwd, mArgs, mEnv, processId, rows, columns);

terminal-emulator/src/main/java/com/termux/terminal/TextStyle.java

@@ -0,0 +1,90 @@
+package com.termux.terminal;
+
+/**
+ * <p>
+ * Encodes effects, foreground and background colors into a 64 bit long, which are stored for each cell in a terminal
+ * row in {@link TerminalRow#mStyle}.
+ * </p>
+ * <p>
+ * The bit layout is:
+ * </p>
+ * - 16 flags (11 currently used).
+ * - 24 for foreground color (only 9 first bits if a color index).
+ * - 24 for background color (only 9 first bits if a color index).
+ */
+public final class TextStyle {
+
+    public final static int CHARACTER_ATTRIBUTE_BOLD = 1;
+    public final static int CHARACTER_ATTRIBUTE_ITALIC = 1 << 1;
+    public final static int CHARACTER_ATTRIBUTE_UNDERLINE = 1 << 2;
+    public final static int CHARACTER_ATTRIBUTE_BLINK = 1 << 3;
+    public final static int CHARACTER_ATTRIBUTE_INVERSE = 1 << 4;
+    public final static int CHARACTER_ATTRIBUTE_INVISIBLE = 1 << 5;
+    public final static int CHARACTER_ATTRIBUTE_STRIKETHROUGH = 1 << 6;
+    /**
+     * The selective erase control functions (DECSED and DECSEL) can only erase characters defined as erasable.
+     * <p>
+     * This bit is set if DECSCA (Select Character Protection Attribute) has been used to define the characters that
+     * come after it as erasable from the screen.
+     * </p>
+     */
+    public final static int CHARACTER_ATTRIBUTE_PROTECTED = 1 << 7;
+    /** Dim colors. Also known as faint or half intensity. */
+    public final static int CHARACTER_ATTRIBUTE_DIM = 1 << 8;
+    /** If true (24-bit) color is used for the cell for foreground. */
+    private final static int CHARACTER_ATTRIBUTE_TRUECOLOR_FOREGROUND = 1 << 9;
+    /** If true (24-bit) color is used for the cell for foreground. */
+    private final static int CHARACTER_ATTRIBUTE_TRUECOLOR_BACKGROUND= 1 << 10;
+
+    public final static int COLOR_INDEX_FOREGROUND = 256;
+    public final static int COLOR_INDEX_BACKGROUND = 257;
+    public final static int COLOR_INDEX_CURSOR = 258;
+
+    /** The 256 standard color entries and the three special (foreground, background and cursor) ones. */
+    public final static int NUM_INDEXED_COLORS = 259;
+
+    /** Normal foreground and background colors and no effects. */
+    final static long NORMAL = encode(COLOR_INDEX_FOREGROUND, COLOR_INDEX_BACKGROUND, 0);
+
+    static long encode(int foreColor, int backColor, int effect) {
+        long result = effect & 0b111111111;
+        if ((0xff000000 & foreColor) == 0xff000000) {
+            // 24-bit color.
+            result |= CHARACTER_ATTRIBUTE_TRUECOLOR_FOREGROUND | ((foreColor & 0x00ffffffL) << 40L);
+        } else {
+            // Indexed color.
+            result |= (foreColor & 0b111111111L) << 40;
+        }
+        if ((0xff000000 & backColor) == 0xff000000) {
+            // 24-bit color.
+            result |= CHARACTER_ATTRIBUTE_TRUECOLOR_BACKGROUND | ((backColor & 0x00ffffffL) << 16L);
+        } else {
+            // Indexed color.
+            result |= (backColor & 0b111111111L) << 16L;
+        }
+
+        return result;
+    }
+
+    public static int decodeForeColor(long style) {
+        if ((style & CHARACTER_ATTRIBUTE_TRUECOLOR_FOREGROUND) == 0) {
+            return (int) ((style >>> 40) & 0b111111111L);
+        } else {
+            return 0xff000000 | (int) ((style >>> 40) & 0x00ffffffL);
+        }
+
+    }
+
+    public static int decodeBackColor(long style) {
+        if ((style & CHARACTER_ATTRIBUTE_TRUECOLOR_BACKGROUND) == 0) {
+            return (int) ((style >>> 16) & 0b111111111L);
+        } else {
+            return 0xff000000 | (int) ((style >>> 16) & 0x00ffffffL);
+        }
+    }
+
+    public static int decodeEffect(long style) {
+        return (int) (style & 0b11111111111);
+    }
+
+}

terminal-emulator/src/main/java/com/termux/terminal/WcWidth.java

@@ -0,0 +1,458 @@
+package com.termux.terminal;
+
+/**
+ * Implementation of wcwidth(3) for Unicode 9.
+ *
+ * Implementation from https://github.com/jquast/wcwidth but we return 0 for unprintable characters.
+ */
+public final class WcWidth {
+
+    // From https://github.com/jquast/wcwidth/blob/master/wcwidth/table_zero.py
+    // t commit 0d7de112202cc8b2ebe9232ff4a5c954f19d561a (2016-07-02):
+    private static final int[][] ZERO_WIDTH = {
+        {0x0300, 0x036f},  // Combining Grave Accent  ..Combining Latin Small Le
+        {0x0483, 0x0489},  // Combining Cyrillic Titlo..Combining Cyrillic Milli
+        {0x0591, 0x05bd},  // Hebrew Accent Etnahta   ..Hebrew Point Meteg
+        {0x05bf, 0x05bf},  // Hebrew Point Rafe       ..Hebrew Point Rafe
+        {0x05c1, 0x05c2},  // Hebrew Point Shin Dot   ..Hebrew Point Sin Dot
+        {0x05c4, 0x05c5},  // Hebrew Mark Upper Dot   ..Hebrew Mark Lower Dot
+        {0x05c7, 0x05c7},  // Hebrew Point Qamats Qata..Hebrew Point Qamats Qata
+        {0x0610, 0x061a},  // Arabic Sign Sallallahou ..Arabic Small Kasra
+        {0x064b, 0x065f},  // Arabic Fathatan         ..Arabic Wavy Hamza Below
+        {0x0670, 0x0670},  // Arabic Letter Superscrip..Arabic Letter Superscrip
+        {0x06d6, 0x06dc},  // Arabic Small High Ligatu..Arabic Small High Seen
+        {0x06df, 0x06e4},  // Arabic Small High Rounde..Arabic Small High Madda
+        {0x06e7, 0x06e8},  // Arabic Small High Yeh   ..Arabic Small High Noon
+        {0x06ea, 0x06ed},  // Arabic Empty Centre Low ..Arabic Small Low Meem
+        {0x0711, 0x0711},  // Syriac Letter Superscrip..Syriac Letter Superscrip
+        {0x0730, 0x074a},  // Syriac Pthaha Above     ..Syriac Barrekh
+        {0x07a6, 0x07b0},  // Thaana Abafili          ..Thaana Sukun
+        {0x07eb, 0x07f3},  // Nko Combining Sh||t High..Nko Combining Double Dot
+        {0x0816, 0x0819},  // Samaritan Mark In       ..Samaritan Mark Dagesh
+        {0x081b, 0x0823},  // Samaritan Mark Epentheti..Samaritan Vowel Sign A
+        {0x0825, 0x0827},  // Samaritan Vowel Sign Sho..Samaritan Vowel Sign U
+        {0x0829, 0x082d},  // Samaritan Vowel Sign Lon..Samaritan Mark Nequdaa
+        {0x0859, 0x085b},  // Mandaic Affrication Mark..Mandaic Gemination Mark
+        {0x08d4, 0x08e1},  // (nil)                   ..
+        {0x08e3, 0x0902},  // Arabic Turned Damma Belo..Devanagari Sign Anusvara
+        {0x093a, 0x093a},  // Devanagari Vowel Sign Oe..Devanagari Vowel Sign Oe
+        {0x093c, 0x093c},  // Devanagari Sign Nukta   ..Devanagari Sign Nukta
+        {0x0941, 0x0948},  // Devanagari Vowel Sign U ..Devanagari Vowel Sign Ai
+        {0x094d, 0x094d},  // Devanagari Sign Virama  ..Devanagari Sign Virama
+        {0x0951, 0x0957},  // Devanagari Stress Sign U..Devanagari Vowel Sign Uu
+        {0x0962, 0x0963},  // Devanagari Vowel Sign Vo..Devanagari Vowel Sign Vo
+        {0x0981, 0x0981},  // Bengali Sign Candrabindu..Bengali Sign Candrabindu
+        {0x09bc, 0x09bc},  // Bengali Sign Nukta      ..Bengali Sign Nukta
+        {0x09c1, 0x09c4},  // Bengali Vowel Sign U    ..Bengali Vowel Sign Vocal
+        {0x09cd, 0x09cd},  // Bengali Sign Virama     ..Bengali Sign Virama
+        {0x09e2, 0x09e3},  // Bengali Vowel Sign Vocal..Bengali Vowel Sign Vocal
+        {0x0a01, 0x0a02},  // Gurmukhi Sign Adak Bindi..Gurmukhi Sign Bindi
+        {0x0a3c, 0x0a3c},  // Gurmukhi Sign Nukta     ..Gurmukhi Sign Nukta
+        {0x0a41, 0x0a42},  // Gurmukhi Vowel Sign U   ..Gurmukhi Vowel Sign Uu
+        {0x0a47, 0x0a48},  // Gurmukhi Vowel Sign Ee  ..Gurmukhi Vowel Sign Ai
+        {0x0a4b, 0x0a4d},  // Gurmukhi Vowel Sign Oo  ..Gurmukhi Sign Virama
+        {0x0a51, 0x0a51},  // Gurmukhi Sign Udaat     ..Gurmukhi Sign Udaat
+        {0x0a70, 0x0a71},  // Gurmukhi Tippi          ..Gurmukhi Addak
+        {0x0a75, 0x0a75},  // Gurmukhi Sign Yakash    ..Gurmukhi Sign Yakash
+        {0x0a81, 0x0a82},  // Gujarati Sign Candrabind..Gujarati Sign Anusvara
+        {0x0abc, 0x0abc},  // Gujarati Sign Nukta     ..Gujarati Sign Nukta
+        {0x0ac1, 0x0ac5},  // Gujarati Vowel Sign U   ..Gujarati Vowel Sign Cand
+        {0x0ac7, 0x0ac8},  // Gujarati Vowel Sign E   ..Gujarati Vowel Sign Ai
+        {0x0acd, 0x0acd},  // Gujarati Sign Virama    ..Gujarati Sign Virama
+        {0x0ae2, 0x0ae3},  // Gujarati Vowel Sign Voca..Gujarati Vowel Sign Voca
+        {0x0b01, 0x0b01},  // ||iya Sign Candrabindu  ..||iya Sign Candrabindu
+        {0x0b3c, 0x0b3c},  // ||iya Sign Nukta        ..||iya Sign Nukta
+        {0x0b3f, 0x0b3f},  // ||iya Vowel Sign I      ..||iya Vowel Sign I
+        {0x0b41, 0x0b44},  // ||iya Vowel Sign U      ..||iya Vowel Sign Vocalic
+        {0x0b4d, 0x0b4d},  // ||iya Sign Virama       ..||iya Sign Virama
+        {0x0b56, 0x0b56},  // ||iya Ai Length Mark    ..||iya Ai Length Mark
+        {0x0b62, 0x0b63},  // ||iya Vowel Sign Vocalic..||iya Vowel Sign Vocalic
+        {0x0b82, 0x0b82},  // Tamil Sign Anusvara     ..Tamil Sign Anusvara
+        {0x0bc0, 0x0bc0},  // Tamil Vowel Sign Ii     ..Tamil Vowel Sign Ii
+        {0x0bcd, 0x0bcd},  // Tamil Sign Virama       ..Tamil Sign Virama
+        {0x0c00, 0x0c00},  // Telugu Sign Combining Ca..Telugu Sign Combining Ca
+        {0x0c3e, 0x0c40},  // Telugu Vowel Sign Aa    ..Telugu Vowel Sign Ii
+        {0x0c46, 0x0c48},  // Telugu Vowel Sign E     ..Telugu Vowel Sign Ai
+        {0x0c4a, 0x0c4d},  // Telugu Vowel Sign O     ..Telugu Sign Virama
+        {0x0c55, 0x0c56},  // Telugu Length Mark      ..Telugu Ai Length Mark
+        {0x0c62, 0x0c63},  // Telugu Vowel Sign Vocali..Telugu Vowel Sign Vocali
+        {0x0c81, 0x0c81},  // Kannada Sign Candrabindu..Kannada Sign Candrabindu
+        {0x0cbc, 0x0cbc},  // Kannada Sign Nukta      ..Kannada Sign Nukta
+        {0x0cbf, 0x0cbf},  // Kannada Vowel Sign I    ..Kannada Vowel Sign I
+        {0x0cc6, 0x0cc6},  // Kannada Vowel Sign E    ..Kannada Vowel Sign E
+        {0x0ccc, 0x0ccd},  // Kannada Vowel Sign Au   ..Kannada Sign Virama
+        {0x0ce2, 0x0ce3},  // Kannada Vowel Sign Vocal..Kannada Vowel Sign Vocal
+        {0x0d01, 0x0d01},  // Malayalam Sign Candrabin..Malayalam Sign Candrabin
+        {0x0d41, 0x0d44},  // Malayalam Vowel Sign U  ..Malayalam Vowel Sign Voc
+        {0x0d4d, 0x0d4d},  // Malayalam Sign Virama   ..Malayalam Sign Virama
+        {0x0d62, 0x0d63},  // Malayalam Vowel Sign Voc..Malayalam Vowel Sign Voc
+        {0x0dca, 0x0dca},  // Sinhala Sign Al-lakuna  ..Sinhala Sign Al-lakuna
+        {0x0dd2, 0x0dd4},  // Sinhala Vowel Sign Ketti..Sinhala Vowel Sign Ketti
+        {0x0dd6, 0x0dd6},  // Sinhala Vowel Sign Diga ..Sinhala Vowel Sign Diga
+        {0x0e31, 0x0e31},  // Thai Character Mai Han-a..Thai Character Mai Han-a
+        {0x0e34, 0x0e3a},  // Thai Character Sara I   ..Thai Character Phinthu
+        {0x0e47, 0x0e4e},  // Thai Character Maitaikhu..Thai Character Yamakkan
+        {0x0eb1, 0x0eb1},  // Lao Vowel Sign Mai Kan  ..Lao Vowel Sign Mai Kan
+        {0x0eb4, 0x0eb9},  // Lao Vowel Sign I        ..Lao Vowel Sign Uu
+        {0x0ebb, 0x0ebc},  // Lao Vowel Sign Mai Kon  ..Lao Semivowel Sign Lo
+        {0x0ec8, 0x0ecd},  // Lao Tone Mai Ek         ..Lao Niggahita
+        {0x0f18, 0x0f19},  // Tibetan Astrological Sig..Tibetan Astrological Sig
+        {0x0f35, 0x0f35},  // Tibetan Mark Ngas Bzung ..Tibetan Mark Ngas Bzung
+        {0x0f37, 0x0f37},  // Tibetan Mark Ngas Bzung ..Tibetan Mark Ngas Bzung
+        {0x0f39, 0x0f39},  // Tibetan Mark Tsa -phru  ..Tibetan Mark Tsa -phru
+        {0x0f71, 0x0f7e},  // Tibetan Vowel Sign Aa   ..Tibetan Sign Rjes Su Nga
+        {0x0f80, 0x0f84},  // Tibetan Vowel Sign Rever..Tibetan Mark Halanta
+        {0x0f86, 0x0f87},  // Tibetan Sign Lci Rtags  ..Tibetan Sign Yang Rtags
+        {0x0f8d, 0x0f97},  // Tibetan Subjoined Sign L..Tibetan Subjoined Letter
+        {0x0f99, 0x0fbc},  // Tibetan Subjoined Letter..Tibetan Subjoined Letter
+        {0x0fc6, 0x0fc6},  // Tibetan Symbol Padma Gda..Tibetan Symbol Padma Gda
+        {0x102d, 0x1030},  // Myanmar Vowel Sign I    ..Myanmar Vowel Sign Uu
+        {0x1032, 0x1037},  // Myanmar Vowel Sign Ai   ..Myanmar Sign Dot Below
+        {0x1039, 0x103a},  // Myanmar Sign Virama     ..Myanmar Sign Asat
+        {0x103d, 0x103e},  // Myanmar Consonant Sign M..Myanmar Consonant Sign M
+        {0x1058, 0x1059},  // Myanmar Vowel Sign Vocal..Myanmar Vowel Sign Vocal
+        {0x105e, 0x1060},  // Myanmar Consonant Sign M..Myanmar Consonant Sign M
+        {0x1071, 0x1074},  // Myanmar Vowel Sign Geba ..Myanmar Vowel Sign Kayah
+        {0x1082, 0x1082},  // Myanmar Consonant Sign S..Myanmar Consonant Sign S
+        {0x1085, 0x1086},  // Myanmar Vowel Sign Shan ..Myanmar Vowel Sign Shan
+        {0x108d, 0x108d},  // Myanmar Sign Shan Counci..Myanmar Sign Shan Counci
+        {0x109d, 0x109d},  // Myanmar Vowel Sign Aiton..Myanmar Vowel Sign Aiton
+        {0x135d, 0x135f},  // Ethiopic Combining Gemin..Ethiopic Combining Gemin
+        {0x1712, 0x1714},  // Tagalog Vowel Sign I    ..Tagalog Sign Virama
+        {0x1732, 0x1734},  // Hanunoo Vowel Sign I    ..Hanunoo Sign Pamudpod
+        {0x1752, 0x1753},  // Buhid Vowel Sign I      ..Buhid Vowel Sign U
+        {0x1772, 0x1773},  // Tagbanwa Vowel Sign I   ..Tagbanwa Vowel Sign U
+        {0x17b4, 0x17b5},  // Khmer Vowel Inherent Aq ..Khmer Vowel Inherent Aa
+        {0x17b7, 0x17bd},  // Khmer Vowel Sign I      ..Khmer Vowel Sign Ua
+        {0x17c6, 0x17c6},  // Khmer Sign Nikahit      ..Khmer Sign Nikahit
+        {0x17c9, 0x17d3},  // Khmer Sign Muusikatoan  ..Khmer Sign Bathamasat
+        {0x17dd, 0x17dd},  // Khmer Sign Atthacan     ..Khmer Sign Atthacan
+        {0x180b, 0x180d},  // Mongolian Free Variation..Mongolian Free Variation
+        {0x1885, 0x1886},  // Mongolian Letter Ali Gal..Mongolian Letter Ali Gal
+        {0x18a9, 0x18a9},  // Mongolian Letter Ali Gal..Mongolian Letter Ali Gal
+        {0x1920, 0x1922},  // Limbu Vowel Sign A      ..Limbu Vowel Sign U
+        {0x1927, 0x1928},  // Limbu Vowel Sign E      ..Limbu Vowel Sign O
+        {0x1932, 0x1932},  // Limbu Small Letter Anusv..Limbu Small Letter Anusv
+        {0x1939, 0x193b},  // Limbu Sign Mukphreng    ..Limbu Sign Sa-i
+        {0x1a17, 0x1a18},  // Buginese Vowel Sign I   ..Buginese Vowel Sign U
+        {0x1a1b, 0x1a1b},  // Buginese Vowel Sign Ae  ..Buginese Vowel Sign Ae
+        {0x1a56, 0x1a56},  // Tai Tham Consonant Sign ..Tai Tham Consonant Sign
+        {0x1a58, 0x1a5e},  // Tai Tham Sign Mai Kang L..Tai Tham Consonant Sign
+        {0x1a60, 0x1a60},  // Tai Tham Sign Sakot     ..Tai Tham Sign Sakot
+        {0x1a62, 0x1a62},  // Tai Tham Vowel Sign Mai ..Tai Tham Vowel Sign Mai
+        {0x1a65, 0x1a6c},  // Tai Tham Vowel Sign I   ..Tai Tham Vowel Sign Oa B
+        {0x1a73, 0x1a7c},  // Tai Tham Vowel Sign Oa A..Tai Tham Sign Khuen-lue
+        {0x1a7f, 0x1a7f},  // Tai Tham Combining Crypt..Tai Tham Combining Crypt
+        {0x1ab0, 0x1abe},  // Combining Doubled Circum..Combining Parentheses Ov
+        {0x1b00, 0x1b03},  // Balinese Sign Ulu Ricem ..Balinese Sign Surang
+        {0x1b34, 0x1b34},  // Balinese Sign Rerekan   ..Balinese Sign Rerekan
+        {0x1b36, 0x1b3a},  // Balinese Vowel Sign Ulu ..Balinese Vowel Sign Ra R
+        {0x1b3c, 0x1b3c},  // Balinese Vowel Sign La L..Balinese Vowel Sign La L
+        {0x1b42, 0x1b42},  // Balinese Vowel Sign Pepe..Balinese Vowel Sign Pepe
+        {0x1b6b, 0x1b73},  // Balinese Musical Symbol ..Balinese Musical Symbol
+        {0x1b80, 0x1b81},  // Sundanese Sign Panyecek ..Sundanese Sign Panglayar
+        {0x1ba2, 0x1ba5},  // Sundanese Consonant Sign..Sundanese Vowel Sign Pan
+        {0x1ba8, 0x1ba9},  // Sundanese Vowel Sign Pam..Sundanese Vowel Sign Pan
+        {0x1bab, 0x1bad},  // Sundanese Sign Virama   ..Sundanese Consonant Sign
+        {0x1be6, 0x1be6},  // Batak Sign Tompi        ..Batak Sign Tompi
+        {0x1be8, 0x1be9},  // Batak Vowel Sign Pakpak ..Batak Vowel Sign Ee
+        {0x1bed, 0x1bed},  // Batak Vowel Sign Karo O ..Batak Vowel Sign Karo O
+        {0x1bef, 0x1bf1},  // Batak Vowel Sign U F|| S..Batak Consonant Sign H
+        {0x1c2c, 0x1c33},  // Lepcha Vowel Sign E     ..Lepcha Consonant Sign T
+        {0x1c36, 0x1c37},  // Lepcha Sign Ran         ..Lepcha Sign Nukta
+        {0x1cd0, 0x1cd2},  // Vedic Tone Karshana     ..Vedic Tone Prenkha
+        {0x1cd4, 0x1ce0},  // Vedic Sign Yajurvedic Mi..Vedic Tone Rigvedic Kash
+        {0x1ce2, 0x1ce8},  // Vedic Sign Visarga Svari..Vedic Sign Visarga Anuda
+        {0x1ced, 0x1ced},  // Vedic Sign Tiryak       ..Vedic Sign Tiryak
+        {0x1cf4, 0x1cf4},  // Vedic Tone Candra Above ..Vedic Tone Candra Above
+        {0x1cf8, 0x1cf9},  // Vedic Tone Ring Above   ..Vedic Tone Double Ring A
+        {0x1dc0, 0x1df5},  // Combining Dotted Grave A..Combining Up Tack Above
+        {0x1dfb, 0x1dff},  // (nil)                   ..Combining Right Arrowhea
+        {0x20d0, 0x20f0},  // Combining Left Harpoon A..Combining Asterisk Above
+        {0x2cef, 0x2cf1},  // Coptic Combining Ni Abov..Coptic Combining Spiritu
+        {0x2d7f, 0x2d7f},  // Tifinagh Consonant Joine..Tifinagh Consonant Joine
+        {0x2de0, 0x2dff},  // Combining Cyrillic Lette..Combining Cyrillic Lette
+        {0x302a, 0x302d},  // Ideographic Level Tone M..Ideographic Entering Ton
+        {0x3099, 0x309a},  // Combining Katakana-hirag..Combining Katakana-hirag
+        {0xa66f, 0xa672},  // Combining Cyrillic Vzmet..Combining Cyrillic Thous
+        {0xa674, 0xa67d},  // Combining Cyrillic Lette..Combining Cyrillic Payer
+        {0xa69e, 0xa69f},  // Combining Cyrillic Lette..Combining Cyrillic Lette
+        {0xa6f0, 0xa6f1},  // Bamum Combining Mark Koq..Bamum Combining Mark Tuk
+        {0xa802, 0xa802},  // Syloti Nagri Sign Dvisva..Syloti Nagri Sign Dvisva
+        {0xa806, 0xa806},  // Syloti Nagri Sign Hasant..Syloti Nagri Sign Hasant
+        {0xa80b, 0xa80b},  // Syloti Nagri Sign Anusva..Syloti Nagri Sign Anusva
+        {0xa825, 0xa826},  // Syloti Nagri Vowel Sign ..Syloti Nagri Vowel Sign
+        {0xa8c4, 0xa8c5},  // Saurashtra Sign Virama  ..
+        {0xa8e0, 0xa8f1},  // Combining Devanagari Dig..Combining Devanagari Sig
+        {0xa926, 0xa92d},  // Kayah Li Vowel Ue       ..Kayah Li Tone Calya Plop
+        {0xa947, 0xa951},  // Rejang Vowel Sign I     ..Rejang Consonant Sign R
+        {0xa980, 0xa982},  // Javanese Sign Panyangga ..Javanese Sign Layar
+        {0xa9b3, 0xa9b3},  // Javanese Sign Cecak Telu..Javanese Sign Cecak Telu
+        {0xa9b6, 0xa9b9},  // Javanese Vowel Sign Wulu..Javanese Vowel Sign Suku
+        {0xa9bc, 0xa9bc},  // Javanese Vowel Sign Pepe..Javanese Vowel Sign Pepe
+        {0xa9e5, 0xa9e5},  // Myanmar Sign Shan Saw   ..Myanmar Sign Shan Saw
+        {0xaa29, 0xaa2e},  // Cham Vowel Sign Aa      ..Cham Vowel Sign Oe
+        {0xaa31, 0xaa32},  // Cham Vowel Sign Au      ..Cham Vowel Sign Ue
+        {0xaa35, 0xaa36},  // Cham Consonant Sign La  ..Cham Consonant Sign Wa
+        {0xaa43, 0xaa43},  // Cham Consonant Sign Fina..Cham Consonant Sign Fina
+        {0xaa4c, 0xaa4c},  // Cham Consonant Sign Fina..Cham Consonant Sign Fina
+        {0xaa7c, 0xaa7c},  // Myanmar Sign Tai Laing T..Myanmar Sign Tai Laing T
+        {0xaab0, 0xaab0},  // Tai Viet Mai Kang       ..Tai Viet Mai Kang
+        {0xaab2, 0xaab4},  // Tai Viet Vowel I        ..Tai Viet Vowel U
+        {0xaab7, 0xaab8},  // Tai Viet Mai Khit       ..Tai Viet Vowel Ia
+        {0xaabe, 0xaabf},  // Tai Viet Vowel Am       ..Tai Viet Tone Mai Ek
+        {0xaac1, 0xaac1},  // Tai Viet Tone Mai Tho   ..Tai Viet Tone Mai Tho
+        {0xaaec, 0xaaed},  // Meetei Mayek Vowel Sign ..Meetei Mayek Vowel Sign
+        {0xaaf6, 0xaaf6},  // Meetei Mayek Virama     ..Meetei Mayek Virama
+        {0xabe5, 0xabe5},  // Meetei Mayek Vowel Sign ..Meetei Mayek Vowel Sign
+        {0xabe8, 0xabe8},  // Meetei Mayek Vowel Sign ..Meetei Mayek Vowel Sign
+        {0xabed, 0xabed},  // Meetei Mayek Apun Iyek  ..Meetei Mayek Apun Iyek
+        {0xfb1e, 0xfb1e},  // Hebrew Point Judeo-spani..Hebrew Point Judeo-spani
+        {0xfe00, 0xfe0f},  // Variation Select||-1    ..Variation Select||-16
+        {0xfe20, 0xfe2f},  // Combining Ligature Left ..Combining Cyrillic Titlo
+        {0x101fd, 0x101fd},  // Phaistos Disc Sign Combi..Phaistos Disc Sign Combi
+        {0x102e0, 0x102e0},  // Coptic Epact Thousands M..Coptic Epact Thousands M
+        {0x10376, 0x1037a},  // Combining Old Permic Let..Combining Old Permic Let
+        {0x10a01, 0x10a03},  // Kharoshthi Vowel Sign I ..Kharoshthi Vowel Sign Vo
+        {0x10a05, 0x10a06},  // Kharoshthi Vowel Sign E ..Kharoshthi Vowel Sign O
+        {0x10a0c, 0x10a0f},  // Kharoshthi Vowel Length ..Kharoshthi Sign Visarga
+        {0x10a38, 0x10a3a},  // Kharoshthi Sign Bar Abov..Kharoshthi Sign Dot Belo
+        {0x10a3f, 0x10a3f},  // Kharoshthi Virama       ..Kharoshthi Virama
+        {0x10ae5, 0x10ae6},  // Manichaean Abbreviation ..Manichaean Abbreviation
+        {0x11001, 0x11001},  // Brahmi Sign Anusvara    ..Brahmi Sign Anusvara
+        {0x11038, 0x11046},  // Brahmi Vowel Sign Aa    ..Brahmi Virama
+        {0x1107f, 0x11081},  // Brahmi Number Joiner    ..Kaithi Sign Anusvara
+        {0x110b3, 0x110b6},  // Kaithi Vowel Sign U     ..Kaithi Vowel Sign Ai
+        {0x110b9, 0x110ba},  // Kaithi Sign Virama      ..Kaithi Sign Nukta
+        {0x11100, 0x11102},  // Chakma Sign Candrabindu ..Chakma Sign Visarga
+        {0x11127, 0x1112b},  // Chakma Vowel Sign A     ..Chakma Vowel Sign Uu
+        {0x1112d, 0x11134},  // Chakma Vowel Sign Ai    ..Chakma Maayyaa
+        {0x11173, 0x11173},  // Mahajani Sign Nukta     ..Mahajani Sign Nukta
+        {0x11180, 0x11181},  // Sharada Sign Candrabindu..Sharada Sign Anusvara
+        {0x111b6, 0x111be},  // Sharada Vowel Sign U    ..Sharada Vowel Sign O
+        {0x111ca, 0x111cc},  // Sharada Sign Nukta      ..Sharada Extra Sh||t Vowe
+        {0x1122f, 0x11231},  // Khojki Vowel Sign U     ..Khojki Vowel Sign Ai
+        {0x11234, 0x11234},  // Khojki Sign Anusvara    ..Khojki Sign Anusvara
+        {0x11236, 0x11237},  // Khojki Sign Nukta       ..Khojki Sign Shadda
+        {0x1123e, 0x1123e},  // (nil)                   ..
+        {0x112df, 0x112df},  // Khudawadi Sign Anusvara ..Khudawadi Sign Anusvara
+        {0x112e3, 0x112ea},  // Khudawadi Vowel Sign U  ..Khudawadi Sign Virama
+        {0x11300, 0x11301},  // Grantha Sign Combining A..Grantha Sign Candrabindu
+        {0x1133c, 0x1133c},  // Grantha Sign Nukta      ..Grantha Sign Nukta
+        {0x11340, 0x11340},  // Grantha Vowel Sign Ii   ..Grantha Vowel Sign Ii
+        {0x11366, 0x1136c},  // Combining Grantha Digit ..Combining Grantha Digit
+        {0x11370, 0x11374},  // Combining Grantha Letter..Combining Grantha Letter
+        {0x11438, 0x1143f},  // (nil)                   ..
+        {0x11442, 0x11444},  // (nil)                   ..
+        {0x11446, 0x11446},  // (nil)                   ..
+        {0x114b3, 0x114b8},  // Tirhuta Vowel Sign U    ..Tirhuta Vowel Sign Vocal
+        {0x114ba, 0x114ba},  // Tirhuta Vowel Sign Sh||t..Tirhuta Vowel Sign Sh||t
+        {0x114bf, 0x114c0},  // Tirhuta Sign Candrabindu..Tirhuta Sign Anusvara
+        {0x114c2, 0x114c3},  // Tirhuta Sign Virama     ..Tirhuta Sign Nukta
+        {0x115b2, 0x115b5},  // Siddham Vowel Sign U    ..Siddham Vowel Sign Vocal
+        {0x115bc, 0x115bd},  // Siddham Sign Candrabindu..Siddham Sign Anusvara
+        {0x115bf, 0x115c0},  // Siddham Sign Virama     ..Siddham Sign Nukta
+        {0x115dc, 0x115dd},  // Siddham Vowel Sign Alter..Siddham Vowel Sign Alter
+        {0x11633, 0x1163a},  // Modi Vowel Sign U       ..Modi Vowel Sign Ai
+        {0x1163d, 0x1163d},  // Modi Sign Anusvara      ..Modi Sign Anusvara
+        {0x1163f, 0x11640},  // Modi Sign Virama        ..Modi Sign Ardhacandra
+        {0x116ab, 0x116ab},  // Takri Sign Anusvara     ..Takri Sign Anusvara
+        {0x116ad, 0x116ad},  // Takri Vowel Sign Aa     ..Takri Vowel Sign Aa
+        {0x116b0, 0x116b5},  // Takri Vowel Sign U      ..Takri Vowel Sign Au
+        {0x116b7, 0x116b7},  // Takri Sign Nukta        ..Takri Sign Nukta
+        {0x1171d, 0x1171f},  // Ahom Consonant Sign Medi..Ahom Consonant Sign Medi
+        {0x11722, 0x11725},  // Ahom Vowel Sign I       ..Ahom Vowel Sign Uu
+        {0x11727, 0x1172b},  // Ahom Vowel Sign Aw      ..Ahom Sign Killer
+        {0x11c30, 0x11c36},  // (nil)                   ..
+        {0x11c38, 0x11c3d},  // (nil)                   ..
+        {0x11c3f, 0x11c3f},  // (nil)                   ..
+        {0x11c92, 0x11ca7},  // (nil)                   ..
+        {0x11caa, 0x11cb0},  // (nil)                   ..
+        {0x11cb2, 0x11cb3},  // (nil)                   ..
+        {0x11cb5, 0x11cb6},  // (nil)                   ..
+        {0x16af0, 0x16af4},  // Bassa Vah Combining High..Bassa Vah Combining High
+        {0x16b30, 0x16b36},  // Pahawh Hmong Mark Cim Tu..Pahawh Hmong Mark Cim Ta
+        {0x16f8f, 0x16f92},  // Miao Tone Right         ..Miao Tone Below
+        {0x1bc9d, 0x1bc9e},  // Duployan Thick Letter Se..Duployan Double Mark
+        {0x1d167, 0x1d169},  // Musical Symbol Combining..Musical Symbol Combining
+        {0x1d17b, 0x1d182},  // Musical Symbol Combining..Musical Symbol Combining
+        {0x1d185, 0x1d18b},  // Musical Symbol Combining..Musical Symbol Combining
+        {0x1d1aa, 0x1d1ad},  // Musical Symbol Combining..Musical Symbol Combining
+        {0x1d242, 0x1d244},  // Combining Greek Musical ..Combining Greek Musical
+        {0x1da00, 0x1da36},  // Signwriting Head Rim    ..Signwriting Air Sucking
+        {0x1da3b, 0x1da6c},  // Signwriting Mouth Closed..Signwriting Excitement
+        {0x1da75, 0x1da75},  // Signwriting Upper Body T..Signwriting Upper Body T
+        {0x1da84, 0x1da84},  // Signwriting Location Hea..Signwriting Location Hea
+        {0x1da9b, 0x1da9f},  // Signwriting Fill Modifie..Signwriting Fill Modifie
+        {0x1daa1, 0x1daaf},  // Signwriting Rotation Mod..Signwriting Rotation Mod
+        {0x1e000, 0x1e006},  // (nil)                   ..
+        {0x1e008, 0x1e018},  // (nil)                   ..
+        {0x1e01b, 0x1e021},  // (nil)                   ..
+        {0x1e023, 0x1e024},  // (nil)                   ..
+        {0x1e026, 0x1e02a},  // (nil)                   ..
+        {0x1e8d0, 0x1e8d6},  // Mende Kikakui Combining ..Mende Kikakui Combining
+        {0x1e944, 0x1e94a},  // (nil)                   ..
+        {0xe0100, 0xe01ef},  // Variation Select||-17   ..Variation Select||-256
+    };
+
+    // https://github.com/jquast/wcwidth/blob/master/wcwidth/table_wide.py
+    // at commit 0d7de112202cc8b2ebe9232ff4a5c954f19d561a (2016-07-02):
+    private static final int[][] WIDE_EASTASIAN = {
+        {0x1100, 0x115f},  // Hangul Choseong Kiyeok  ..Hangul Choseong Filler
+        {0x231a, 0x231b},  // Watch                   ..Hourglass
+        {0x2329, 0x232a},  // Left-pointing Angle Brac..Right-pointing Angle Bra
+        {0x23e9, 0x23ec},  // Black Right-pointing Dou..Black Down-pointing Doub
+        {0x23f0, 0x23f0},  // Alarm Clock             ..Alarm Clock
+        {0x23f3, 0x23f3},  // Hourglass With Flowing S..Hourglass With Flowing S
+        {0x25fd, 0x25fe},  // White Medium Small Squar..Black Medium Small Squar
+        {0x2614, 0x2615},  // Umbrella With Rain Drops..Hot Beverage
+        {0x2648, 0x2653},  // Aries                   ..Pisces
+        {0x267f, 0x267f},  // Wheelchair Symbol       ..Wheelchair Symbol
+        {0x2693, 0x2693},  // Anch||                  ..Anch||
+        {0x26a1, 0x26a1},  // High Voltage Sign       ..High Voltage Sign
+        {0x26aa, 0x26ab},  // Medium White Circle     ..Medium Black Circle
+        {0x26bd, 0x26be},  // Soccer Ball             ..Baseball
+        {0x26c4, 0x26c5},  // Snowman Without Snow    ..Sun Behind Cloud
+        {0x26ce, 0x26ce},  // Ophiuchus               ..Ophiuchus
+        {0x26d4, 0x26d4},  // No Entry                ..No Entry
+        {0x26ea, 0x26ea},  // Church                  ..Church
+        {0x26f2, 0x26f3},  // Fountain                ..Flag In Hole
+        {0x26f5, 0x26f5},  // Sailboat                ..Sailboat
+        {0x26fa, 0x26fa},  // Tent                    ..Tent
+        {0x26fd, 0x26fd},  // Fuel Pump               ..Fuel Pump
+        {0x2705, 0x2705},  // White Heavy Check Mark  ..White Heavy Check Mark
+        {0x270a, 0x270b},  // Raised Fist             ..Raised Hand
+        {0x2728, 0x2728},  // Sparkles                ..Sparkles
+        {0x274c, 0x274c},  // Cross Mark              ..Cross Mark
+        {0x274e, 0x274e},  // Negative Squared Cross M..Negative Squared Cross M
+        {0x2753, 0x2755},  // Black Question Mark ||na..White Exclamation Mark O
+        {0x2757, 0x2757},  // Heavy Exclamation Mark S..Heavy Exclamation Mark S
+        {0x2795, 0x2797},  // Heavy Plus Sign         ..Heavy Division Sign
+        {0x27b0, 0x27b0},  // Curly Loop              ..Curly Loop
+        {0x27bf, 0x27bf},  // Double Curly Loop       ..Double Curly Loop
+        {0x2b1b, 0x2b1c},  // Black Large Square      ..White Large Square
+        {0x2b50, 0x2b50},  // White Medium Star       ..White Medium Star
+        {0x2b55, 0x2b55},  // Heavy Large Circle      ..Heavy Large Circle
+        {0x2e80, 0x2e99},  // Cjk Radical Repeat      ..Cjk Radical Rap
+        {0x2e9b, 0x2ef3},  // Cjk Radical Choke       ..Cjk Radical C-simplified
+        {0x2f00, 0x2fd5},  // Kangxi Radical One      ..Kangxi Radical Flute
+        {0x2ff0, 0x2ffb},  // Ideographic Description ..Ideographic Description
+        {0x3000, 0x303e},  // Ideographic Space       ..Ideographic Variation In
+        {0x3041, 0x3096},  // Hiragana Letter Small A ..Hiragana Letter Small Ke
+        {0x3099, 0x30ff},  // Combining Katakana-hirag..Katakana Digraph Koto
+        {0x3105, 0x312d},  // Bopomofo Letter B       ..Bopomofo Letter Ih
+        {0x3131, 0x318e},  // Hangul Letter Kiyeok    ..Hangul Letter Araeae
+        {0x3190, 0x31ba},  // Ideographic Annotation L..Bopomofo Letter Zy
+        {0x31c0, 0x31e3},  // Cjk Stroke T            ..Cjk Stroke Q
+        {0x31f0, 0x321e},  // Katakana Letter Small Ku..Parenthesized K||ean Cha
+        {0x3220, 0x3247},  // Parenthesized Ideograph ..Circled Ideograph Koto
+        {0x3250, 0x32fe},  // Partnership Sign        ..Circled Katakana Wo
+        {0x3300, 0x4dbf},  // Square Apaato           ..
+        {0x4e00, 0xa48c},  // Cjk Unified Ideograph-4e..Yi Syllable Yyr
+        {0xa490, 0xa4c6},  // Yi Radical Qot          ..Yi Radical Ke
+        {0xa960, 0xa97c},  // Hangul Choseong Tikeut-m..Hangul Choseong Ssangyeo
+        {0xac00, 0xd7a3},  // Hangul Syllable Ga      ..Hangul Syllable Hih
+        {0xf900, 0xfaff},  // Cjk Compatibility Ideogr..
+        {0xfe10, 0xfe19},  // Presentation F||m F|| Ve..Presentation F||m F|| Ve
+        {0xfe30, 0xfe52},  // Presentation F||m F|| Ve..Small Full Stop
+        {0xfe54, 0xfe66},  // Small Semicolon         ..Small Equals Sign
+        {0xfe68, 0xfe6b},  // Small Reverse Solidus   ..Small Commercial At
+        {0xff01, 0xff60},  // Fullwidth Exclamation Ma..Fullwidth Right White Pa
+        {0xffe0, 0xffe6},  // Fullwidth Cent Sign     ..Fullwidth Won Sign
+        {0x16fe0, 0x16fe0},  // (nil)                   ..
+        {0x17000, 0x187ec},  // (nil)                   ..
+        {0x18800, 0x18af2},  // (nil)                   ..
+        {0x1b000, 0x1b001},  // Katakana Letter Archaic ..Hiragana Letter Archaic
+        {0x1f004, 0x1f004},  // Mahjong Tile Red Dragon ..Mahjong Tile Red Dragon
+        {0x1f0cf, 0x1f0cf},  // Playing Card Black Joker..Playing Card Black Joker
+        {0x1f18e, 0x1f18e},  // Negative Squared Ab     ..Negative Squared Ab
+        {0x1f191, 0x1f19a},  // Squared Cl              ..Squared Vs
+        {0x1f200, 0x1f202},  // Square Hiragana Hoka    ..Squared Katakana Sa
+        {0x1f210, 0x1f23b},  // Squared Cjk Unified Ideo..
+        {0x1f240, 0x1f248},  // T||toise Shell Bracketed..T||toise Shell Bracketed
+        {0x1f250, 0x1f251},  // Circled Ideograph Advant..Circled Ideograph Accept
+        {0x1f300, 0x1f320},  // Cyclone                 ..Shooting Star
+        {0x1f32d, 0x1f335},  // Hot Dog                 ..Cactus
+        {0x1f337, 0x1f37c},  // Tulip                   ..Baby Bottle
+        {0x1f37e, 0x1f393},  // Bottle With Popping C||k..Graduation Cap
+        {0x1f3a0, 0x1f3ca},  // Carousel H||se          ..Swimmer
+        {0x1f3cf, 0x1f3d3},  // Cricket Bat And Ball    ..Table Tennis Paddle And
+        {0x1f3e0, 0x1f3f0},  // House Building          ..European Castle
+        {0x1f3f4, 0x1f3f4},  // Waving Black Flag       ..Waving Black Flag
+        {0x1f3f8, 0x1f43e},  // Badminton Racquet And Sh..Paw Prints
+        {0x1f440, 0x1f440},  // Eyes                    ..Eyes
+        {0x1f442, 0x1f4fc},  // Ear                     ..Videocassette
+        {0x1f4ff, 0x1f53d},  // Prayer Beads            ..Down-pointing Small Red
+        {0x1f54b, 0x1f54e},  // Kaaba                   ..Men||ah With Nine Branch
+        {0x1f550, 0x1f567},  // Clock Face One Oclock   ..Clock Face Twelve-thirty
+        {0x1f57a, 0x1f57a},  // (nil)                   ..
+        {0x1f595, 0x1f596},  // Reversed Hand With Middl..Raised Hand With Part Be
+        {0x1f5a4, 0x1f5a4},  // (nil)                   ..
+        {0x1f5fb, 0x1f64f},  // Mount Fuji              ..Person With Folded Hands
+        {0x1f680, 0x1f6c5},  // Rocket                  ..Left Luggage
+        {0x1f6cc, 0x1f6cc},  // Sleeping Accommodation  ..Sleeping Accommodation
+        {0x1f6d0, 0x1f6d2},  // Place Of W||ship        ..
+        {0x1f6eb, 0x1f6ec},  // Airplane Departure      ..Airplane Arriving
+        {0x1f6f4, 0x1f6f6},  // (nil)                   ..
+        {0x1f910, 0x1f91e},  // Zipper-mouth Face       ..
+        {0x1f920, 0x1f927},  // (nil)                   ..
+        {0x1f930, 0x1f930},  // (nil)                   ..
+        {0x1f933, 0x1f93e},  // (nil)                   ..
+        {0x1f940, 0x1f94b},  // (nil)                   ..
+        {0x1f950, 0x1f95e},  // (nil)                   ..
+        {0x1f980, 0x1f991},  // Crab                    ..
+        {0x1f9c0, 0x1f9c0},  // Cheese Wedge            ..Cheese Wedge
+        {0x20000, 0x2fffd},  // Cjk Unified Ideograph-20..
+        {0x30000, 0x3fffd},  // (nil)                   ..
+    };
+
+
+    private static boolean intable(int[][] table, int c) {
+        // First quick check f|| Latin1 etc. characters.
+        if (c < table[0][0]) return false;
+
+        // Binary search in table.
+        int bot = 0;
+        int top = table.length - 1; // (int)(size / sizeof(struct interval) - 1);
+        while (top >= bot) {
+            int mid = (bot + top) / 2;
+            if (table[mid][1] < c) {
+                bot = mid + 1;
+            } else if (table[mid][0] > c) {
+                top = mid - 1;
+            } else {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    /** Return the terminal display width of a code point: 0, 1 || 2. */
+    public static int width(int ucs) {
+        if (ucs == 0 ||
+            ucs == 0x034F ||
+            (0x200B <= ucs && ucs <= 0x200F) ||
+            ucs == 0x2028 ||
+            ucs == 0x2029 ||
+            (0x202A <= ucs && ucs <= 0x202E) ||
+            (0x2060 <= ucs && ucs <= 0x2063)) {
+            return 0;
+        }
+
+        // C0/C1 control characters
+        // Termux change: Return 0 instead of -1.
+        if (ucs < 32 || (0x07F <= ucs && ucs < 0x0A0)) return 0;
+
+        // combining characters with zero width
+        if (intable(ZERO_WIDTH, ucs)) return 0;
+
+        return intable(WIDE_EASTASIAN, ucs) ? 2 : 1;
+    }
+
+    /** The width at an index position in a java char array. */
+    public static int width(char[] chars, int index) {
+        char c = chars[index];
+        return Character.isHighSurrogate(c) ? width(Character.toCodePoint(c, chars[index + 1])) : width(c);
+    }
+
+}

terminal-emulator/src/main/jni/Android.mk

@@ -0,0 +1,5 @@
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+LOCAL_MODULE:= libtermux
+LOCAL_SRC_FILES:= termux.c
+include $(BUILD_SHARED_LIBRARY)

terminal-emulator/src/test/java/com/termux/terminal/ControlSequenceIntroducerTest.java

@@ -29,4 +29,21 @@ public class ControlSequenceIntroducerTest extends TerminalTestCase {
 		withTerminalSized(13, 2).enterString("abcdefghijkl\b\b\b\b\b\033[20X").assertLinesAre("abcdefg      ", "             ");
 	}
 
+	/** CSI Pm m  Set SGR parameter(s) from semicolon-separated list Pm. */
+	public void testCsiSGRParameters() {
+		// Set more parameters (19) than supported (16).  Additional parameters should be silently consumed.
+		withTerminalSized(3, 2).enterString("\033[0;38;2;255;255;255;48;2;0;0;0;1;2;3;4;5;7;8;9mabc").assertLinesAre("abc", "   ");
+	}
+
+    /** CSI Ps b  Repeat the preceding graphic character Ps times (REP). */
+    public void testRepeat() {
+        withTerminalSized(3, 2).enterString("a\033[b").assertLinesAre("aa ", "   ");
+        withTerminalSized(3, 2).enterString("a\033[2b").assertLinesAre("aaa", "   ");
+        // When no char has been output we ignore REP:
+        withTerminalSized(3, 2).enterString("\033[b").assertLinesAre("   ", "   ");
+        // This shows that REP outputs the last emitted code point and not the one relative to the
+        // current cursor position:
+        withTerminalSized(5, 2).enterString("abcde\033[2G\033[2b\n").assertLinesAre("aeede", "     ");
+    }
+
 }

terminal-emulator/src/test/java/com/termux/terminal/CursorAndScreenTest.java

@@ -18,7 +18,7 @@ public class CursorAndScreenTest extends TerminalTestCase {
 		assertLinesAre("ABCDE", "FGHIJ", "KLMNO", "PQRST", "UVWXY");
 		for (int row = 0; row < 5; row++) {
 			for (int col = 0; col < 5; col++) {
-				int s = getStyleAt(row, col);
+                long s = getStyleAt(row, col);
 				Assert.assertEquals(col, TextStyle.decodeForeColor(s));
 				Assert.assertEquals(row, TextStyle.decodeBackColor(s));
 			}
@@ -28,7 +28,7 @@ public class CursorAndScreenTest extends TerminalTestCase {
 		assertLinesAre("KLMNO", "PQRST", "UVWXY", "     ", "     ");
 		for (int row = 0; row < 3; row++) {
 			for (int col = 0; col < 5; col++) {
-				int s = getStyleAt(row, col);
+				long s = getStyleAt(row, col);
 				Assert.assertEquals(col, TextStyle.decodeForeColor(s));
 				Assert.assertEquals(row + 2, TextStyle.decodeBackColor(s));
 			}
@@ -43,7 +43,7 @@ public class CursorAndScreenTest extends TerminalTestCase {
 			for (int col = 0; col < 5; col++) {
 				int wantedForeground = (row == 1 || row == 2) ? 98 : col;
 				int wantedBackground = (row == 1 || row == 2) ? 99 : (row == 0 ? 2 : row);
-				int s = getStyleAt(row, col);
+                long s = getStyleAt(row, col);
 				Assert.assertEquals(wantedForeground, TextStyle.decodeForeColor(s));
 				Assert.assertEquals(wantedBackground, TextStyle.decodeBackColor(s));
 			}
@@ -227,4 +227,44 @@ public class CursorAndScreenTest extends TerminalTestCase {
         withTerminalSized(3, 3).enterString("\b\b\b\bhi").assertLinesAre("hi ", "   ", "   ");
     }
 
+	public void testCursorSaveRestoreLocation() {
+		// DEC save/restore
+		withTerminalSized(4, 2).enterString("t\0337est\r\nme\0338ry ").assertLinesAre("try ", "me  ");
+		// ANSI.SYS save/restore
+		withTerminalSized(4, 2).enterString("t\033[sest\r\nme\033[ury ").assertLinesAre("try ", "me  ");
+		// Alternate screen enter/exit
+		withTerminalSized(4, 2).enterString("t\033[?1049h\033[Hest\r\nme").assertLinesAre("est ", "me  ").enterString("\033[?1049lry").assertLinesAre("try ", "    ");
+	}
+
+	public void testCursorSaveRestoreTextStyle() {
+		long s;
+
+		// DEC save/restore
+		withTerminalSized(4, 2).enterString("\033[31;42;4m..\0337\033[36;47;24m\0338..");
+		s = getStyleAt(0, 3);
+		Assert.assertEquals(1, TextStyle.decodeForeColor(s));
+		Assert.assertEquals(2, TextStyle.decodeBackColor(s));
+		Assert.assertEquals(TextStyle.CHARACTER_ATTRIBUTE_UNDERLINE, TextStyle.decodeEffect(s));
+
+		// ANSI.SYS save/restore
+		withTerminalSized(4, 2).enterString("\033[31;42;4m..\033[s\033[36;47;24m\033[u..");
+		s = getStyleAt(0, 3);
+		Assert.assertEquals(1, TextStyle.decodeForeColor(s));
+		Assert.assertEquals(2, TextStyle.decodeBackColor(s));
+		Assert.assertEquals(TextStyle.CHARACTER_ATTRIBUTE_UNDERLINE, TextStyle.decodeEffect(s));
+
+		// Alternate screen enter/exit
+		withTerminalSized(4, 2);
+		enterString("\033[31;42;4m..\033[?1049h\033[H\033[36;47;24m.");
+		s = getStyleAt(0, 0);
+		Assert.assertEquals(6, TextStyle.decodeForeColor(s));
+		Assert.assertEquals(7, TextStyle.decodeBackColor(s));
+		Assert.assertEquals(0, TextStyle.decodeEffect(s));
+		enterString("\033[?1049l..");
+		s = getStyleAt(0, 3);
+		Assert.assertEquals(1, TextStyle.decodeForeColor(s));
+		Assert.assertEquals(2, TextStyle.decodeBackColor(s));
+		Assert.assertEquals(TextStyle.CHARACTER_ATTRIBUTE_UNDERLINE, TextStyle.decodeEffect(s));
+	}
+
 }

terminal-emulator/src/test/java/com/termux/terminal/KeyHandlerTest.java

@@ -141,10 +141,10 @@ public class KeyHandlerTest extends TestCase {
 		assertKeysEquals("\033[1;6D", KeyHandler.getCode(KeyEvent.KEYCODE_DPAD_LEFT, mod, false, false));
 
 		// Home/end keys:
-		assertKeysEquals("\033[H", KeyHandler.getCode(KeyEvent.KEYCODE_HOME, 0, false, false));
+		assertKeysEquals("\033[H", KeyHandler.getCode(KeyEvent.KEYCODE_MOVE_HOME, 0, false, false));
 		assertKeysEquals("\033[F", KeyHandler.getCode(KeyEvent.KEYCODE_MOVE_END, 0, false, false));
 		// ... shifted:
-		assertKeysEquals("\033[1;2H", KeyHandler.getCode(KeyEvent.KEYCODE_HOME, KeyHandler.KEYMOD_SHIFT, false, false));
+		assertKeysEquals("\033[1;2H", KeyHandler.getCode(KeyEvent.KEYCODE_MOVE_HOME, KeyHandler.KEYMOD_SHIFT, false, false));
 		assertKeysEquals("\033[1;2F", KeyHandler.getCode(KeyEvent.KEYCODE_MOVE_END, KeyHandler.KEYMOD_SHIFT, false, false));
 
 		// Function keys F1-F12:
@@ -173,5 +173,19 @@ public class KeyHandlerTest extends TestCase {
 		assertKeysEquals("\033[21;2~", KeyHandler.getCode(KeyEvent.KEYCODE_F10, KeyHandler.KEYMOD_SHIFT, false, false));
 		assertKeysEquals("\033[23;2~", KeyHandler.getCode(KeyEvent.KEYCODE_F11, KeyHandler.KEYMOD_SHIFT, false, false));
 		assertKeysEquals("\033[24;2~", KeyHandler.getCode(KeyEvent.KEYCODE_F12, KeyHandler.KEYMOD_SHIFT, false, false));
-	}
+
+        assertKeysEquals("0", KeyHandler.getCode(KeyEvent.KEYCODE_NUMPAD_0, 0, false, false));
+        assertKeysEquals("1", KeyHandler.getCode(KeyEvent.KEYCODE_NUMPAD_1, 0, false, false));
+        assertKeysEquals("2", KeyHandler.getCode(KeyEvent.KEYCODE_NUMPAD_2, 0, false, false));
+        assertKeysEquals("3", KeyHandler.getCode(KeyEvent.KEYCODE_NUMPAD_3, 0, false, false));
+        assertKeysEquals("4", KeyHandler.getCode(KeyEvent.KEYCODE_NUMPAD_4, 0, false, false));
+        assertKeysEquals("5", KeyHandler.getCode(KeyEvent.KEYCODE_NUMPAD_5, 0, false, false));
+        assertKeysEquals("6", KeyHandler.getCode(KeyEvent.KEYCODE_NUMPAD_6, 0, false, false));
+        assertKeysEquals("7", KeyHandler.getCode(KeyEvent.KEYCODE_NUMPAD_7, 0, false, false));
+        assertKeysEquals("8", KeyHandler.getCode(KeyEvent.KEYCODE_NUMPAD_8, 0, false, false));
+        assertKeysEquals("9", KeyHandler.getCode(KeyEvent.KEYCODE_NUMPAD_9, 0, false, false));
+        assertKeysEquals(",", KeyHandler.getCode(KeyEvent.KEYCODE_NUMPAD_COMMA, 0, false, false));
+        assertKeysEquals(".", KeyHandler.getCode(KeyEvent.KEYCODE_NUMPAD_DOT, 0, false, false));
+    }
+
 }

terminal-emulator/src/test/java/com/termux/terminal/ResizeTest.java

@@ -93,7 +93,7 @@ public class ResizeTest extends TerminalTestCase {
 		enterString("\033[2J");
 		for (int r = 0; r < rows; r++) {
 			for (int c = 0; c < cols; c++) {
-				int style = getStyleAt(r, c);
+                long style = getStyleAt(r, c);
 				assertEquals(119, TextStyle.decodeForeColor(style));
 				assertEquals(129, TextStyle.decodeBackColor(style));
 			}
@@ -105,7 +105,7 @@ public class ResizeTest extends TerminalTestCase {
 		// After resize, screen should still be same color:
 		for (int r = 0; r < rows - 2; r++) {
 			for (int c = 0; c < cols; c++) {
-				int style = getStyleAt(r, c);
+                long style = getStyleAt(r, c);
 				assertEquals(119, TextStyle.decodeForeColor(style));
 				assertEquals(129, TextStyle.decodeBackColor(style));
 			}
@@ -116,7 +116,7 @@ public class ResizeTest extends TerminalTestCase {
 		resize(cols, rows);
 		for (int r = 0; r < rows; r++) {
 			for (int c = 0; c < cols; c++) {
-				int style = getStyleAt(r, c);
+                long style = getStyleAt(r, c);
 				assertEquals(119, TextStyle.decodeForeColor(style));
 				assertEquals("wrong at row=" + r, r >= 3 ? 200 : 129, TextStyle.decodeBackColor(style));
 			}

terminal-emulator/src/test/java/com/termux/terminal/ScreenBufferTest.java

@@ -1,6 +1,6 @@
 package com.termux.terminal;
 
-public class ScreenBufferTest extends TerminalTest {
+public class ScreenBufferTest extends TerminalTestCase {
 
 	public void testBasics() {
 		TerminalBuffer screen = new TerminalBuffer(5, 3, 3);

terminal-emulator/src/test/java/com/termux/terminal/ScrollRegionTest.java

@@ -98,4 +98,13 @@ public class ScrollRegionTest extends TerminalTestCase {
 		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 ");
 	}
+
+	public void testScrollDownBelowScrollRegion() {
+		withTerminalSized(2, 5).enterString("1\r\n2\r\n3\r\n4\r\n5").assertLinesAre("1 ", "2 ", "3 ", "4 ", "5 ");
+		enterString("\033[1;3r"); // DECSTBM margins.
+		enterString("\033[4;1H"); // Place cursor just below bottom margin.
+		enterString("QQ\r\nRR\r\n\r\n\r\nYY");
+		assertLinesAre("1 ", "2 ", "3 ", "QQ", "YY");
+	}
+
 }

terminal-emulator/src/test/java/com/termux/terminal/TerminalRowTest.java

@@ -27,6 +27,7 @@ public class TerminalRowTest extends TestCase {
 
 	@Override
 	protected void setUp() throws Exception {
+		super.setUp();
 		row = new TerminalRow(COLUMNS, TextStyle.NORMAL);
 	}
 

terminal-emulator/src/test/java/com/termux/terminal/TerminalTest.java

@@ -55,6 +55,14 @@ public class TerminalTest extends TerminalTestCase {
 		assertEquals("\033[<0;3;4M", mOutput.getOutputAndClear());
 		mTerminal.sendMouseEvent(TerminalEmulator.MOUSE_LEFT_BUTTON, 3, 4, false);
 		assertEquals("\033[<0;3;4m", mOutput.getOutputAndClear());
+
+		// When the client says that a click is outside (which could happen when pixels are outside
+		// the terminal area, see https://github.com/termux/termux-app/issues/501) the terminal
+		// sends a click at the edge.
+		mTerminal.sendMouseEvent(TerminalEmulator.MOUSE_LEFT_BUTTON, 0, 0, true);
+		assertEquals("\033[<0;1;1M", mOutput.getOutputAndClear());
+		mTerminal.sendMouseEvent(TerminalEmulator.MOUSE_LEFT_BUTTON, 11, 11, false);
+		assertEquals("\033[<0;10;10m", mOutput.getOutputAndClear());
 	}
 
 	public void testNormalization() throws UnsupportedEncodingException {
@@ -147,12 +155,11 @@ public class TerminalTest extends TerminalTestCase {
 		enterString("\033[38;5;119m");
 		assertEquals(119, mTerminal.mForeColor);
 		assertEquals(TextStyle.COLOR_INDEX_BACKGROUND, mTerminal.mBackColor);
-
 		enterString("\033[48;5;129m");
 		assertEquals(119, mTerminal.mForeColor);
 		assertEquals(129, mTerminal.mBackColor);
 
-		// Invalid parameter:
+        // Invalid parameter:
 		enterString("\033[48;8;129m");
 		assertEquals(119, mTerminal.mForeColor);
 		assertEquals(129, mTerminal.mBackColor);
@@ -161,7 +168,31 @@ public class TerminalTest extends TerminalTestCase {
 		enterString("\033[38;5;178;48;5;179;m");
 		assertEquals(178, mTerminal.mForeColor);
 		assertEquals(179, mTerminal.mBackColor);
-	}
+
+        // 24 bit colors:
+        enterString(("\033[0m")); // Reset fg and bg colors.
+        enterString("\033[38;2;255;127;2m");
+        int expectedForeground = 0xff000000 | (255 << 16) | (127 << 8) | 2;
+        assertEquals(expectedForeground, mTerminal.mForeColor);
+        assertEquals(TextStyle.COLOR_INDEX_BACKGROUND, mTerminal.mBackColor);
+        enterString("\033[48;2;1;2;254m");
+        int expectedBackground = 0xff000000 | (1 << 16) | (2 << 8) | 254;
+        assertEquals(expectedForeground, mTerminal.mForeColor);
+        assertEquals(expectedBackground, mTerminal.mBackColor);
+
+        // 24 bit colors, set fg and bg at once:
+        enterString(("\033[0m")); // Reset fg and bg colors.
+        assertEquals(TextStyle.COLOR_INDEX_FOREGROUND, mTerminal.mForeColor);
+        assertEquals(TextStyle.COLOR_INDEX_BACKGROUND, mTerminal.mBackColor);
+        enterString("\033[38;2;255;127;2;48;2;1;2;254m");
+        assertEquals(expectedForeground, mTerminal.mForeColor);
+        assertEquals(expectedBackground, mTerminal.mBackColor);
+
+        // 24 bit colors, invalid input:
+        enterString("\033[38;2;300;127;2;48;2;1;300;254m");
+        assertEquals(expectedForeground, mTerminal.mForeColor);
+        assertEquals(expectedBackground, mTerminal.mBackColor);
+    }
 
 	public void testBackgroundColorErase() {
 		final int rows = 3;
@@ -169,7 +200,7 @@ public class TerminalTest extends TerminalTestCase {
 		withTerminalSized(cols, rows);
 		for (int r = 0; r < rows; r++) {
 			for (int c = 0; c < cols; c++) {
-				int style = getStyleAt(r, c);
+                long style = getStyleAt(r, c);
 				assertEquals(TextStyle.COLOR_INDEX_FOREGROUND, TextStyle.decodeForeColor(style));
 				assertEquals(TextStyle.COLOR_INDEX_BACKGROUND, TextStyle.decodeBackColor(style));
 			}
@@ -182,7 +213,7 @@ public class TerminalTest extends TerminalTestCase {
 		enterString("\033[2J");
 		for (int r = 0; r < rows; r++) {
 			for (int c = 0; c < cols; c++) {
-				int style = getStyleAt(r, c);
+                long style = getStyleAt(r, c);
 				assertEquals(119, TextStyle.decodeForeColor(style));
 				assertEquals(129, TextStyle.decodeBackColor(style));
 			}
@@ -193,7 +224,7 @@ public class TerminalTest extends TerminalTestCase {
 		enterString("\033[2L");
 		for (int r = 0; r < rows; r++) {
 			for (int c = 0; c < cols; c++) {
-				int style = getStyleAt(r, c);
+                long style = getStyleAt(r, c);
 				assertEquals((r == 0 || r == 1) ? 139 : 129, TextStyle.decodeBackColor(style));
 			}
 		}

terminal-emulator/src/test/java/com/termux/terminal/TerminalTestCase.java

@@ -103,6 +103,7 @@ public abstract class TerminalTestCase extends TestCase {
 
 	@Override
 	protected void setUp() throws Exception {
+		super.setUp();
 		mOutput = new MockTerminalOutput();
 	}
 
@@ -240,7 +241,7 @@ public abstract class TerminalTestCase extends TestCase {
 	}
 
 	/** For testing only. Encoded style according to {@link TextStyle}. */
-	public int getStyleAt(int externalRow, int column) {
+	public long getStyleAt(int externalRow, int column) {
 		return mTerminal.getScreen().getStyleAt(externalRow, column);
 	}
 
@@ -296,7 +297,7 @@ public abstract class TerminalTestCase extends TestCase {
 	}
 
 	public void assertForegroundColorAt(int externalRow, int column, int color) {
-		int style = mTerminal.getScreen().mLines[mTerminal.getScreen().externalToInternalRow(externalRow)].getStyle(column);
+		long style = mTerminal.getScreen().mLines[mTerminal.getScreen().externalToInternalRow(externalRow)].getStyle(column);
 		assertEquals(color, TextStyle.decodeForeColor(style));
 	}