236 lines
8.0 KiB
Java
236 lines
8.0 KiB
Java
/*
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* Copyright (C) 2015 The CyanogenMod Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package cyanogenmod.externalviews;
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import android.app.Service;
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import android.content.Context;
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import android.content.Intent;
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import android.graphics.PixelFormat;
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import android.graphics.Rect;
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import android.os.Bundle;
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import android.os.Handler;
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import android.os.IBinder;
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import android.os.RemoteException;
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import android.util.Log;
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import android.view.Gravity;
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import android.view.View;
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import android.view.ViewGroup;
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import android.view.Window;
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import android.view.WindowManager;
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import com.android.internal.policy.PhoneWindow;
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import java.util.concurrent.Callable;
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import java.util.concurrent.ExecutionException;
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import java.util.concurrent.FutureTask;
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/**
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* TODO: unhide once documented and finalized
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* @hide
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*/
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public abstract class ExternalViewProviderService extends Service {
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private static final String TAG = "ExternalViewProvider";
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private static final boolean DEBUG = false;
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private WindowManager mWindowManager;
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private final Handler mHandler = new Handler();
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@Override
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public void onCreate() {
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super.onCreate();
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mWindowManager = (WindowManager) getSystemService(Context.WINDOW_SERVICE);
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}
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@Override
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public final IBinder onBind(Intent intent) {
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return new IExternalViewProviderFactory.Stub() {
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@Override public IBinder createExternalView(final Bundle options) {
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FutureTask<IBinder> c = new FutureTask<IBinder>(new Callable<IBinder>() {
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@Override
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public IBinder call() throws Exception {
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return ExternalViewProviderService.this.createExternalView(options).mImpl;
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}
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});
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mHandler.post(c);
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try {
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return c.get();
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} catch (InterruptedException | ExecutionException e) {
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Log.e(TAG, "error: ", e);
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return null;
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}
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}
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};
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}
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protected abstract Provider createExternalView(Bundle options);
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protected abstract class Provider {
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public static final int DEFAULT_WINDOW_TYPE = WindowManager.LayoutParams.TYPE_PHONE;
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public static final int DEFAULT_WINDOW_FLAGS =
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WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL |
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WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS |
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WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN;;
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private final class ProviderImpl extends IExternalViewProvider.Stub {
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private final Window mWindow;
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private final WindowManager.LayoutParams mParams;
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private boolean mShouldShow = true;
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private boolean mAskedShow = false;
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public ProviderImpl(Provider provider) {
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mWindow = new PhoneWindow(ExternalViewProviderService.this);
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((ViewGroup) mWindow.getDecorView()).addView(onCreateView());
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mParams = new WindowManager.LayoutParams();
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mParams.type = provider.getWindowType();
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mParams.flags = provider.getWindowFlags();
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mParams.gravity = Gravity.LEFT | Gravity.TOP;
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mParams.format = PixelFormat.TRANSPARENT;
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}
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@Override
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public void onAttach(IBinder windowToken) throws RemoteException {
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mHandler.post(new Runnable() {
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@Override
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public void run() {
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mWindowManager.addView(mWindow.getDecorView(), mParams);
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Provider.this.onAttach();
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}
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});
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}
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@Override
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public void onStart() throws RemoteException {
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mHandler.post(new Runnable() {
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@Override
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public void run() {
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Provider.this.onStart();
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}
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});
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}
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@Override
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public void onResume() throws RemoteException {
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mHandler.post(new Runnable() {
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@Override
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public void run() {
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mShouldShow = true;
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updateVisibility();
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Provider.this.onResume();
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}
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});
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}
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@Override
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public void onPause() throws RemoteException {
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mHandler.post(new Runnable() {
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@Override
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public void run() {
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mShouldShow = false;
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updateVisibility();
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Provider.this.onPause();
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}
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});
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}
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@Override
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public void onStop() throws RemoteException {
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mHandler.post(new Runnable() {
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@Override
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public void run() {
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Provider.this.onStop();
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}
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});
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}
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@Override
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public void onDetach() throws RemoteException {
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mHandler.post(new Runnable() {
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@Override
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public void run() {
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mWindowManager.removeView(mWindow.getDecorView());
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Provider.this.onDetach();
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}
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});
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}
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@Override
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public void alterWindow(final int x, final int y, final int width, final int height,
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final boolean visible, final Rect clipRect) {
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mHandler.post(new Runnable() {
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@Override
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public void run() {
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mParams.x = x;
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mParams.y = y;
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mParams.width = width;
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mParams.height = height;
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if (DEBUG) Log.d(TAG, mParams.toString());
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mAskedShow = visible;
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updateVisibility();
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View decorView = mWindow.getDecorView();
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if (decorView.getVisibility() == View.VISIBLE) {
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decorView.setClipBounds(clipRect);
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}
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if (mWindow.getDecorView().getVisibility() != View.GONE)
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mWindowManager.updateViewLayout(mWindow.getDecorView(), mParams);
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}
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});
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}
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private void updateVisibility() {
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if (DEBUG) Log.d(TAG, "shouldShow = " + mShouldShow + " askedShow = " + mAskedShow);
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mWindow.getDecorView().setVisibility(mShouldShow && mAskedShow ?
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View.VISIBLE : View.GONE);
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}
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}
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private final ProviderImpl mImpl = new ProviderImpl(this);
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private final Bundle mOptions;
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protected Provider(Bundle options) {
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mOptions = options;
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}
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protected Bundle getOptions() {
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return mOptions;
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}
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protected void onAttach() {}
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protected abstract View onCreateView();
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protected void onStart() {}
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protected void onResume() {}
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protected void onPause() {}
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protected void onStop() {}
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protected void onDetach() {}
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/*package*/ int getWindowType() {
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return DEFAULT_WINDOW_TYPE;
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}
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/*package*/ int getWindowFlags() {
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return DEFAULT_WINDOW_FLAGS;
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}
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}
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} |