LG8n: Import DT2w service from HOAMSI's rom

Signed-off-by: Shirayuki39 <lorddemecrius83@proton.me>

device.mk

@@ -151,6 +151,10 @@ PRODUCT_PACKAGES += \
 PRODUCT_PACKAGES += \
     android.hardware.drm@1.4.vendor
 
+# DT2W
+PRODUCT_PACKAGES += \
+    DT2W-Service-MT6789
+
 # Dynamic partitions
 PRODUCT_USE_DYNAMIC_PARTITIONS := true
 

dt2w/Android.bp

@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2020 The Potato Open Sauce 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.
+ */
+
+
+android_app {
+    name: "DT2W-Service-MT6789",
+
+    srcs: ["src/**/*.java"],
+    resource_dirs: ["res"],
+
+    certificate: "platform",
+    platform_apis: true,
+    privileged: true,
+
+    optimize: {
+        enabled: false,
+    },
+
+    required: [
+        "privapp-permissions_co.potatoproject.dt2w.MT6789",
+        "xiaomi-touch"
+    ]
+}
+
+prebuilt_etc {
+    name: "privapp-permissions_co.potatoproject.dt2w.MT6789",
+    sub_dir: "permissions",
+    src: "privapp-permissions_co.potatoproject.dt2w.MT6789.xml",
+    filename_from_src: true,
+}
+
+cc_binary {
+	name: "xiaomi-touch",
+	srcs: [
+		"xiaomi-touch.cpp",
+	],
+}

dt2w/AndroidManifest.xml

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="co.potatoproject.dt2w.MT6789"
+    android:versionCode="1"
+    android:versionName="1.0"
+    android:sharedUserId="android.uid.system">
+
+    <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
+    <uses-permission android:name="android.permission.WRITE_SETTINGS" />
+    <uses-permission android:name="android.permission.WRITE_SECURE_SETTINGS" />
+    <uses-permission android:name="android.permission.INTERACT_ACROSS_USERS_FULL" />
+
+    <application android:label="@string/app_name">
+
+        <receiver android:name=".OnBootCompleteReceiver" android:exported="true">
+            <intent-filter>
+                <action android:name="android.intent.action.BOOT_COMPLETED" />
+            </intent-filter>
+        </receiver>
+
+        <service android:enabled="true" android:name=".DT2WServiceMT6789" />
+    </application>
+</manifest>

dt2w/privapp-permissions_co.potatoproject.dt2w.MT6789.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+     Copyright (C) 2020 The LineageOS 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.
+-->
+<permissions>
+    <privapp-permissions package="co.potatoproject.dt2w.MT6789">
+        <permission name="android.permission.WRITE_SECURE_SETTINGS"/>
+    </privapp-permissions>
+</permissions>

dt2w/res/values-zh-rCN/strings.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="app_name">双击唤醒服务</string>
+</resources>

dt2w/res/values/strings.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="app_name">DT2W Service</string>
+</resources>

dt2w/src/co/potatoproject/dt2w/MT6789/DT2WServiceMT6789.java

@@ -0,0 +1,66 @@
+package co.potatoproject.dt2w.MT6789;
+
+import android.app.Service;
+import android.content.ContentResolver;
+import android.content.Context;
+import android.content.Intent;
+import android.database.ContentObserver;
+import android.net.Uri;
+import android.os.Handler;
+import android.os.IBinder;
+import android.os.Looper;
+import android.os.SystemProperties;
+import android.os.UserHandle;
+import android.provider.Settings.Secure;
+
+public class DT2WServiceMT6789 extends Service {
+    private static final String TAG = "DT2WServiceMT6789";
+    private Context mContext;
+    private Handler mHandler;
+    private CustomSettingsObserver mCustomSettingsObserver;
+
+    @Override
+    public IBinder onBind(Intent intent) {
+        return null;
+    }
+
+    @Override
+    public void onDestroy() {
+        super.onDestroy();
+    }
+
+    @Override
+    public int onStartCommand(Intent intent, int flags, int startid) {
+        mContext = this;
+        mHandler = new Handler(Looper.getMainLooper());
+        mCustomSettingsObserver = new CustomSettingsObserver(mHandler);
+        mCustomSettingsObserver.observe();
+        mCustomSettingsObserver.update();
+        return START_STICKY;
+    }
+
+    private class CustomSettingsObserver extends ContentObserver {
+        CustomSettingsObserver(Handler handler) {
+            super(handler);
+        }
+
+        void observe() {
+            ContentResolver resolver = mContext.getContentResolver();
+            resolver.registerContentObserver(Secure.getUriFor(Secure.DOUBLE_TAP_TO_WAKE),
+                    false, this, UserHandle.USER_CURRENT);
+        }
+
+        void update() {
+            int dt2wValue = Secure.getInt(mContext.getContentResolver(), Secure.DOUBLE_TAP_TO_WAKE, 0);
+            boolean dt2wEnabled = dt2wValue == 1;
+            SystemProperties.set("persist.sys.MT6789.dt2w", dt2wEnabled ? "1" : "0");
+        }
+
+        @Override
+        public void onChange(boolean selfChange, Uri uri) {
+            if (uri.equals(Secure.getUriFor(Secure.DOUBLE_TAP_TO_WAKE))) {
+                update();
+            }
+        }
+    }
+}

dt2w/src/co/potatoproject/dt2w/MT6789/OnBootCompleteReceiver.java

@@ -0,0 +1,14 @@
+package co.potatoproject.dt2w.MT6789;
+
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.os.Build;
+import android.os.UserHandle;
+
+public class OnBootCompleteReceiver extends BroadcastReceiver {
+    public void onReceive(Context context, Intent intent) {
+        Intent sIntent = new Intent(context, DT2WServiceMT6789.class);
+        context.startServiceAsUser(sIntent, UserHandle.CURRENT);
+    }
+}