| /* |
| * Copyright (C) 2017 The Android Open Source 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.systemui.pip.phone; |
| |
| import static android.app.AppOpsManager.MODE_ALLOWED; |
| import static android.app.AppOpsManager.OP_PICTURE_IN_PICTURE; |
| import static android.app.PendingIntent.FLAG_CANCEL_CURRENT; |
| import static android.content.Intent.FLAG_ACTIVITY_CLEAR_TASK; |
| import static android.content.Intent.FLAG_ACTIVITY_NEW_TASK; |
| import static android.provider.Settings.ACTION_PICTURE_IN_PICTURE_SETTINGS; |
| |
| import android.app.AppOpsManager; |
| import android.app.AppOpsManager.OnOpChangedListener; |
| import android.app.IActivityManager; |
| import android.app.Notification; |
| import android.app.NotificationManager; |
| import android.app.PendingIntent; |
| import android.content.ComponentName; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.pm.ApplicationInfo; |
| import android.content.pm.PackageManager; |
| import android.content.pm.PackageManager.NameNotFoundException; |
| import android.graphics.Bitmap; |
| import android.graphics.Bitmap.Config; |
| import android.graphics.Canvas; |
| import android.graphics.drawable.Drawable; |
| import android.net.Uri; |
| import android.os.UserHandle; |
| import android.util.IconDrawableFactory; |
| import android.util.Log; |
| import android.util.Pair; |
| |
| import com.android.systemui.R; |
| import com.android.systemui.SystemUI; |
| import com.android.systemui.util.NotificationChannels; |
| |
| /** |
| * Manages the BTW notification that shows whenever an activity enters or leaves picture-in-picture. |
| */ |
| public class PipNotificationController { |
| private static final String TAG = PipNotificationController.class.getSimpleName(); |
| |
| private static final String NOTIFICATION_TAG = PipNotificationController.class.getName(); |
| private static final int NOTIFICATION_ID = 0; |
| |
| private Context mContext; |
| private IActivityManager mActivityManager; |
| private AppOpsManager mAppOpsManager; |
| private NotificationManager mNotificationManager; |
| private IconDrawableFactory mIconDrawableFactory; |
| |
| private PipMotionHelper mMotionHelper; |
| |
| // Used when building a deferred notification |
| private String mDeferredNotificationPackageName; |
| private int mDeferredNotificationUserId; |
| |
| private AppOpsManager.OnOpChangedListener mAppOpsChangedListener = new OnOpChangedListener() { |
| @Override |
| public void onOpChanged(String op, String packageName) { |
| try { |
| // Dismiss the PiP once the user disables the app ops setting for that package |
| final Pair<ComponentName, Integer> topPipActivityInfo = |
| PipUtils.getTopPinnedActivity(mContext, mActivityManager); |
| if (topPipActivityInfo.first != null) { |
| final ApplicationInfo appInfo = mContext.getPackageManager() |
| .getApplicationInfoAsUser(packageName, 0, topPipActivityInfo.second); |
| if (appInfo.packageName.equals(topPipActivityInfo.first.getPackageName()) && |
| mAppOpsManager.checkOpNoThrow(OP_PICTURE_IN_PICTURE, appInfo.uid, |
| packageName) != MODE_ALLOWED) { |
| mMotionHelper.dismissPip(); |
| } |
| } |
| } catch (NameNotFoundException e) { |
| // Unregister the listener if the package can't be found |
| unregisterAppOpsListener(); |
| } |
| } |
| }; |
| |
| public PipNotificationController(Context context, IActivityManager activityManager, |
| PipMotionHelper motionHelper) { |
| mContext = context; |
| mActivityManager = activityManager; |
| mAppOpsManager = (AppOpsManager) context.getSystemService(Context.APP_OPS_SERVICE); |
| mNotificationManager = NotificationManager.from(context); |
| mMotionHelper = motionHelper; |
| mIconDrawableFactory = IconDrawableFactory.newInstance(context); |
| } |
| |
| public void onActivityPinned(String packageName, int userId, boolean deferUntilAnimationEnds) { |
| // Clear any existing notification |
| mNotificationManager.cancel(NOTIFICATION_TAG, NOTIFICATION_ID); |
| |
| if (deferUntilAnimationEnds) { |
| mDeferredNotificationPackageName = packageName; |
| mDeferredNotificationUserId = userId; |
| } else { |
| showNotificationForApp(packageName, userId); |
| } |
| |
| // Register for changes to the app ops setting for this package while it is in PiP |
| registerAppOpsListener(packageName); |
| } |
| |
| public void onPinnedStackAnimationEnded() { |
| if (mDeferredNotificationPackageName != null) { |
| showNotificationForApp(mDeferredNotificationPackageName, mDeferredNotificationUserId); |
| mDeferredNotificationPackageName = null; |
| mDeferredNotificationUserId = 0; |
| } |
| } |
| |
| public void onActivityUnpinned(ComponentName topPipActivity, int userId) { |
| // Unregister for changes to the previously PiP'ed package |
| unregisterAppOpsListener(); |
| |
| // Reset the deferred notification package |
| mDeferredNotificationPackageName = null; |
| mDeferredNotificationUserId = 0; |
| |
| if (topPipActivity != null) { |
| // onActivityUnpinned() is only called after the transition is complete, so we don't |
| // need to defer until the animation ends to update the notification |
| onActivityPinned(topPipActivity.getPackageName(), userId, |
| false /* deferUntilAnimationEnds */); |
| } else { |
| mNotificationManager.cancel(NOTIFICATION_TAG, NOTIFICATION_ID); |
| } |
| } |
| |
| /** |
| * Builds and shows the notification for the given app. |
| */ |
| private void showNotificationForApp(String packageName, int userId) { |
| // Build a new notification |
| try { |
| final UserHandle user = UserHandle.of(userId); |
| final Context userContext = mContext.createPackageContextAsUser( |
| mContext.getPackageName(), 0, user); |
| final Notification.Builder builder = |
| new Notification.Builder(userContext, NotificationChannels.GENERAL) |
| .setLocalOnly(true) |
| .setOngoing(true) |
| .setSmallIcon(R.drawable.pip_notification_icon) |
| .setColor(mContext.getColor( |
| com.android.internal.R.color.system_notification_accent_color)); |
| if (updateNotificationForApp(builder, packageName, user)) { |
| SystemUI.overrideNotificationAppName(mContext, builder); |
| |
| // Show the new notification |
| mNotificationManager.notify(NOTIFICATION_TAG, NOTIFICATION_ID, builder.build()); |
| } |
| } catch (NameNotFoundException e) { |
| Log.e(TAG, "Could not show notification for application", e); |
| } |
| } |
| |
| /** |
| * Updates the notification builder with app-specific information, returning whether it was |
| * successful. |
| */ |
| private boolean updateNotificationForApp(Notification.Builder builder, String packageName, |
| UserHandle user) throws NameNotFoundException { |
| final PackageManager pm = mContext.getPackageManager(); |
| final ApplicationInfo appInfo; |
| try { |
| appInfo = pm.getApplicationInfoAsUser(packageName, 0, user.getIdentifier()); |
| } catch (NameNotFoundException e) { |
| Log.e(TAG, "Could not update notification for application", e); |
| return false; |
| } |
| |
| if (appInfo != null) { |
| final String appName = pm.getUserBadgedLabel(pm.getApplicationLabel(appInfo), user) |
| .toString(); |
| final String message = mContext.getString(R.string.pip_notification_message, appName); |
| final Intent settingsIntent = new Intent(ACTION_PICTURE_IN_PICTURE_SETTINGS, |
| Uri.fromParts("package", packageName, null)); |
| settingsIntent.putExtra(Intent.EXTRA_USER_HANDLE, user); |
| settingsIntent.setFlags(FLAG_ACTIVITY_NEW_TASK | FLAG_ACTIVITY_CLEAR_TASK); |
| |
| final Drawable iconDrawable = mIconDrawableFactory.getBadgedIcon(appInfo); |
| builder.setContentTitle(mContext.getString(R.string.pip_notification_title, appName)) |
| .setContentText(message) |
| .setContentIntent(PendingIntent.getActivityAsUser(mContext, packageName.hashCode(), |
| settingsIntent, FLAG_CANCEL_CURRENT, null, user)) |
| .setStyle(new Notification.BigTextStyle().bigText(message)) |
| .setLargeIcon(createBitmap(iconDrawable).createAshmemBitmap()); |
| return true; |
| } |
| return false; |
| } |
| |
| private void registerAppOpsListener(String packageName) { |
| mAppOpsManager.startWatchingMode(OP_PICTURE_IN_PICTURE, packageName, |
| mAppOpsChangedListener); |
| } |
| |
| private void unregisterAppOpsListener() { |
| mAppOpsManager.stopWatchingMode(mAppOpsChangedListener); |
| } |
| |
| /** |
| * Bakes a drawable into a bitmap. |
| */ |
| private Bitmap createBitmap(Drawable d) { |
| Bitmap bitmap = Bitmap.createBitmap(d.getIntrinsicWidth(), d.getIntrinsicHeight(), |
| Config.ARGB_8888); |
| Canvas c = new Canvas(bitmap); |
| d.setBounds(0, 0, d.getIntrinsicWidth(), d.getIntrinsicHeight()); |
| d.draw(c); |
| c.setBitmap(null); |
| return bitmap; |
| } |
| } |