TouchGestures: Initial app import

Credits to LineageOS and related authors on:
https://github.com/LineageOS/android_packages_apps_LineageParts

Clean up and rewrite to use PreferenceFragment and other improvements by @SKULSHADY

Android.mk

@@ -0,0 +1,21 @@
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_MODULE_TAGS := optional
+
+LOCAL_SRC_FILES := $(call all-java-files-under, src)
+LOCAL_USE_AAPT2 := true
+
+LOCAL_PACKAGE_NAME := TouchGestures
+LOCAL_CERTIFICATE := platform
+LOCAL_PRIVILEGED_MODULE := true
+LOCAL_PRIVATE_PLATFORM_APIS := true
+
+LOCAL_PROGUARD_FLAG_FILES := proguard.flags
+
+include frameworks/base/packages/SettingsLib/common.mk
+include vendor/support/common.mk
+
+include $(BUILD_PACKAGE)
+
+include $(call all-makefiles-under,$(LOCAL_PATH))

AndroidManifest.xml

@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.android.touch.gestures"
+    android:sharedUserId="android.uid.system">
+
+    <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
+    <uses-permission android:name="android.permission.WRITE_SETTINGS" />
+
+    <protected-broadcast android:name="com.android.touch.gestures.UPDATE_SETTINGS" />
+
+    <uses-sdk
+        android:targetSdkVersion="27"/>
+
+    <application
+        android:label="Touchscreen Gestures"
+        android:persistent="true"
+        android:supportsRtl="true">
+
+        <receiver android:name=".BootReceiver" android:enabled="true">
+            <intent-filter android:priority="999999">
+                <action android:name="android.intent.action.BOOT_COMPLETED" />
+            </intent-filter>
+        </receiver>
+
+        <activity android:name=".KeyHandler" />
+
+        <activity
+            android:name=".TouchscreenGestureSettings"
+            android:label="@string/touchscreen_gesture_settings_title"
+            android:theme="@style/AppTheme">
+        </activity>
+    </application>
+</manifest>

proguard.flags

@@ -0,0 +1,11 @@
+# Keep all Fragments in this package, which are used by reflection.
+-keep class com.android.touch.gestures.*
+
+# Keep keyhandler constructor
+-keep public class * implements com.android.internal.os.DeviceKeyHandler {
+    public <init>(android.content.Context);
+}
+
+-keepclasseswithmembers class * {
+    public <init>(android.content.Context, android.util.AttributeSet);
+}

res/values/arrays.xml

@@ -0,0 +1,49 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+    Copyright (c) 2019 Havoc-OS
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+-->
+<resources>
+
+    <!-- Gestures - touchscreen gesture actions -->
+    <string-array name="touchscreen_gesture_action_entries">
+        <item>@string/touchscreen_gesture_action_do_nothing</item>
+        <item>@string/touchscreen_gesture_action_flashlight</item>
+        <item>@string/touchscreen_gesture_action_camera</item>
+        <item>@string/touchscreen_gesture_action_browser</item>
+        <item>@string/touchscreen_gesture_action_dialer</item>
+        <item>@string/touchscreen_gesture_action_email</item>
+        <item>@string/touchscreen_gesture_action_messages</item>
+        <item>@string/touchscreen_gesture_action_play_pause_music</item>
+        <item>@string/touchscreen_gesture_action_previous_track</item>
+        <item>@string/touchscreen_gesture_action_next_track</item>
+        <item>@string/touchscreen_gesture_action_volume_down</item>
+        <item>@string/touchscreen_gesture_action_volume_up</item>
+    </string-array>
+    <string-array name="touchscreen_gesture_action_values">
+        <item>0</item>
+        <item>1</item>
+        <item>2</item>
+        <item>3</item>
+        <item>4</item>
+        <item>5</item>
+        <item>6</item>
+        <item>7</item>
+        <item>8</item>
+        <item>9</item>
+        <item>10</item>
+        <item>11</item>
+    </string-array>
+
+</resources>

res/values/config.xml

@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+    Copyright (c) 2019 Havoc-OS
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+-->
+<resources xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
+
+    <!-- Default action ids for a device's touchscreen gestures
+         The array should be sorted in the same order as the
+         touchscreen gestures advertised by the device's LineageHW impl. -->
+    <integer-array name="config_defaultTouchscreenGestureActions" />
+
+</resources>

res/values/strings.xml

@@ -0,0 +1,66 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+    Copyright (c) 2019 Havoc-OS
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+-->
+<resources xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
+
+    <!-- Gestures: Touchscreen gestures -->
+    <string name="touchscreen_gesture_settings_title">Touchscreen gestures</string>
+    <string name="touchscreen_gesture_settings_summary">Perform various touchscreen gestures for quick actions</string>
+
+    <string name="touchscreen_gestures_haptic_feedback_title">Haptic feedback</string>
+    <string name="touchscreen_gestures_haptic_feedback_summary">Vibrate when a touchscreen gesture is detected</string>
+
+    <string name="touchscreen_gesture_two_finger_down_swipe_title">Swipe down with two fingers</string>
+    <string name="touchscreen_gesture_one_finger_up_swipe_title">Swipe up with one finger</string>
+    <string name="touchscreen_gesture_one_finger_up_swipe_home_title">Swipe up from the home button</string>
+    <string name="touchscreen_gesture_one_finger_down_swipe_title">Swipe down with one finger</string>
+    <string name="touchscreen_gesture_one_finger_left_swipe_title">Swipe left with one finger</string>
+    <string name="touchscreen_gesture_one_finger_right_swipe_title">Swipe right with one finger</string>
+    <string name="touchscreen_gesture_up_arrow_title">Draw a \"Λ\"</string>
+    <string name="touchscreen_gesture_down_arrow_title">Draw a \"V\"</string>
+    <string name="touchscreen_gesture_left_arrow_title">Draw a \"&lt;\"</string>
+    <string name="touchscreen_gesture_right_arrow_title">Draw a \"&gt;\"</string>
+    <string name="touchscreen_gesture_letter_c_title">Draw the letter \"C\"</string>
+    <string name="touchscreen_gesture_letter_e_title">Draw the letter \"e\"</string>
+    <string name="touchscreen_gesture_letter_o_title">Draw the letter \"O\"</string>
+    <string name="touchscreen_gesture_letter_m_title">Draw the letter \"M\"</string>
+    <string name="touchscreen_gesture_letter_s_title">Draw the letter \"S\"</string>
+    <string name="touchscreen_gesture_letter_v_title">Draw the letter \"V\"</string>
+    <string name="touchscreen_gesture_letter_w_title">Draw the letter \"W\"</string>
+    <string name="touchscreen_gesture_letter_z_title">Draw the letter \"Z\"</string>
+
+    <!-- Gesture: Stylus gestures -->
+    <string name="touchscreen_gesture_swipe_up_stylus_title">Swipe up with the stylus</string>
+    <string name="touchscreen_gesture_swipe_down_stylus_title">Swipe down with the stylus</string>
+    <string name="touchscreen_gesture_swipe_left_stylus_title">Swipe left with the stylus</string>
+    <string name="touchscreen_gesture_swipe_right_stylus_title">Swipe right with the stylus</string>
+    <string name="touchscreen_gesture_long_press_stylus_title">Long press with the stylus</string>
+
+    <string name="touchscreen_gesture_action_dialog_title">Gesture action</string>
+    <string name="touchscreen_gesture_action_do_nothing">Do nothing</string>
+    <string name="touchscreen_gesture_action_flashlight">Toggle flashlight</string>
+    <string name="touchscreen_gesture_action_camera">Open the camera</string>
+    <string name="touchscreen_gesture_action_browser">Open the browser</string>
+    <string name="touchscreen_gesture_action_dialer">Open the dialer</string>
+    <string name="touchscreen_gesture_action_email">View your emails</string>
+    <string name="touchscreen_gesture_action_messages">View your messages</string>
+    <string name="touchscreen_gesture_action_play_pause_music">Play/pause music</string>
+    <string name="touchscreen_gesture_action_previous_track">Play the previous music track</string>
+    <string name="touchscreen_gesture_action_next_track">Play the next music track</string>
+    <string name="touchscreen_gesture_action_volume_down">Lower media volume</string>
+    <string name="touchscreen_gesture_action_volume_up">Raise media volume</string>
+
+</resources>

res/values/styles.xml

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+    Copyright (c) 2019 Havoc-OS
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+-->
+<resources>
+    <style name="AppTheme" parent="@android:style/Theme.DeviceDefault.Settings">
+        <item name="android:divider">@null</item>
+        <item name="android:dividerHeight">0dp</item>
+        <item name="android:iconSpaceReserved">true</item>
+    </style>
+</resources>

res/xml/touchscreen_gesture_settings.xml

@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+    Copyright (c) 2019 Havoc-OS
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+-->
+<PreferenceScreen
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:key="touchscreen_gesture_settings"
+    android:title="@string/touchscreen_gesture_settings_title">
+
+    <com.havoc.support.preferences.SystemSettingSwitchPreference
+        android:key="touchscreen_gesture_haptic_feedback"
+        android:title="@string/touchscreen_gestures_haptic_feedback_title"
+        android:summary="@string/touchscreen_gestures_haptic_feedback_summary"
+        android:defaultValue="true" />
+
+</PreferenceScreen>

src/com/android/touch/gestures/BootReceiver.java

@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2012 The CyanogenMod Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.touch.gestures;
+
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.content.SharedPreferences;
+
+import androidx.preference.PreferenceManager;
+
+import com.android.touch.gestures.TouchscreenGestureSettings;
+
+public class BootReceiver extends BroadcastReceiver {
+
+    private static final String TAG = "BootReceiver";
+    private static final String ONE_TIME_TUNABLE_RESTORE = "hardware_tunable_restored";
+
+    @Override
+    public void onReceive(Context ctx, Intent intent) {
+        TouchscreenGestureSettings.MainSettingsFragment.restoreTouchscreenGestureStates(ctx);
+    }
+
+    private boolean hasRestoredTunable(Context context) {
+        SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(context);
+        return preferences.getBoolean(ONE_TIME_TUNABLE_RESTORE, false);
+    }
+
+    private void setRestoredTunable(Context context) {
+        SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(context);
+        preferences.edit().putBoolean(ONE_TIME_TUNABLE_RESTORE, true).apply();
+    }
+}