| /* |
| * Copyright (C) 2015 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 cyanogenmod.externalviews; |
| |
| import android.app.Service; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.graphics.PixelFormat; |
| import android.graphics.Rect; |
| import android.os.Bundle; |
| import android.os.Handler; |
| import android.os.IBinder; |
| import android.os.RemoteException; |
| import android.util.Log; |
| import android.view.Gravity; |
| import android.view.View; |
| import android.view.ViewGroup; |
| import android.view.Window; |
| import android.view.WindowManager; |
| |
| import com.android.internal.policy.PhoneWindow; |
| |
| import java.util.concurrent.Callable; |
| import java.util.concurrent.ExecutionException; |
| import java.util.concurrent.FutureTask; |
| |
| /** |
| * TODO: unhide once documented and finalized |
| * @hide |
| */ |
| public abstract class ExternalViewProviderService extends Service { |
| |
| private static final String TAG = "ExternalViewProvider"; |
| private static final boolean DEBUG = false; |
| |
| private WindowManager mWindowManager; |
| private final Handler mHandler = new Handler(); |
| |
| @Override |
| public void onCreate() { |
| super.onCreate(); |
| |
| mWindowManager = (WindowManager) getSystemService(Context.WINDOW_SERVICE); |
| } |
| |
| @Override |
| public final IBinder onBind(Intent intent) { |
| return new IExternalViewProviderFactory.Stub() { |
| @Override public IBinder createExternalView(final Bundle options) { |
| FutureTask<IBinder> c = new FutureTask<IBinder>(new Callable<IBinder>() { |
| @Override |
| public IBinder call() throws Exception { |
| return ExternalViewProviderService.this.createExternalView(options).mImpl; |
| } |
| }); |
| mHandler.post(c); |
| try { |
| return c.get(); |
| } catch (InterruptedException | ExecutionException e) { |
| Log.e(TAG, "error: ", e); |
| return null; |
| } |
| } |
| }; |
| } |
| |
| protected abstract Provider createExternalView(Bundle options); |
| |
| protected abstract class Provider { |
| private final class ProviderImpl extends IExternalViewProvider.Stub { |
| private final Window mWindow; |
| private final WindowManager.LayoutParams mParams; |
| |
| private boolean mShouldShow = true; |
| private boolean mAskedShow = false; |
| |
| public ProviderImpl() { |
| mWindow = new PhoneWindow(ExternalViewProviderService.this); |
| ((ViewGroup) mWindow.getDecorView()).addView(onCreateView()); |
| |
| mParams = new WindowManager.LayoutParams(); |
| mParams.type = WindowManager.LayoutParams.TYPE_PHONE; |
| mParams.flags = WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL | |
| WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS | |
| WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN; |
| mParams.gravity = Gravity.LEFT | Gravity.TOP; |
| mParams.format = PixelFormat.TRANSPARENT; |
| } |
| |
| @Override |
| public void onAttach(IBinder windowToken) throws RemoteException { |
| mHandler.post(new Runnable() { |
| @Override |
| public void run() { |
| mWindowManager.addView(mWindow.getDecorView(), mParams); |
| Provider.this.onAttach(); |
| } |
| }); |
| } |
| |
| @Override |
| public void onStart() throws RemoteException { |
| mHandler.post(new Runnable() { |
| @Override |
| public void run() { |
| Provider.this.onStart(); |
| } |
| }); |
| } |
| |
| @Override |
| public void onResume() throws RemoteException { |
| mHandler.post(new Runnable() { |
| @Override |
| public void run() { |
| mShouldShow = true; |
| updateVisibility(); |
| Provider.this.onResume(); |
| } |
| }); |
| } |
| |
| @Override |
| public void onPause() throws RemoteException { |
| mHandler.post(new Runnable() { |
| @Override |
| public void run() { |
| mShouldShow = false; |
| updateVisibility(); |
| Provider.this.onPause(); |
| } |
| }); |
| } |
| |
| @Override |
| public void onStop() throws RemoteException { |
| mHandler.post(new Runnable() { |
| @Override |
| public void run() { |
| Provider.this.onStop(); |
| } |
| }); |
| } |
| |
| @Override |
| public void onDetach() throws RemoteException { |
| mHandler.post(new Runnable() { |
| @Override |
| public void run() { |
| mWindowManager.removeView(mWindow.getDecorView()); |
| Provider.this.onDetach(); |
| } |
| }); |
| } |
| |
| @Override |
| public void alterWindow(final int x, final int y, final int width, final int height, |
| final boolean visible, final Rect clipRect) { |
| mHandler.post(new Runnable() { |
| @Override |
| public void run() { |
| mParams.x = x; |
| mParams.y = y; |
| mParams.width = width; |
| mParams.height = height; |
| |
| if (DEBUG) Log.d(TAG, mParams.toString()); |
| |
| mAskedShow = visible; |
| |
| updateVisibility(); |
| |
| View decorView = mWindow.getDecorView(); |
| if (decorView.getVisibility() == View.VISIBLE) { |
| decorView.setClipBounds(clipRect); |
| } |
| |
| if (mWindow.getDecorView().getVisibility() != View.GONE) |
| mWindowManager.updateViewLayout(mWindow.getDecorView(), mParams); |
| } |
| }); |
| } |
| |
| private void updateVisibility() { |
| if (DEBUG) Log.d(TAG, "shouldShow = " + mShouldShow + " askedShow = " + mAskedShow); |
| mWindow.getDecorView().setVisibility(mShouldShow && mAskedShow ? |
| View.VISIBLE : View.GONE); |
| } |
| } |
| |
| private final ProviderImpl mImpl = new ProviderImpl(); |
| private final Bundle mOptions; |
| |
| protected Provider(Bundle options) { |
| mOptions = options; |
| } |
| |
| protected Bundle getOptions() { |
| return mOptions; |
| } |
| |
| protected void onAttach() {} |
| protected abstract View onCreateView(); |
| protected void onStart() {} |
| protected void onResume() {} |
| protected void onPause() {} |
| protected void onStop() {} |
| protected void onDetach() {} |
| } |
| } |