| /* |
| * Copyright (C) 2020 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.wm.shell.pip.tv; |
| |
| import android.app.Notification; |
| import android.app.NotificationManager; |
| import android.app.PendingIntent; |
| import android.content.BroadcastReceiver; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.IntentFilter; |
| import android.content.pm.ApplicationInfo; |
| import android.content.pm.PackageManager; |
| import android.graphics.Bitmap; |
| import android.media.MediaMetadata; |
| import android.os.Handler; |
| import android.os.UserHandle; |
| import android.text.TextUtils; |
| import android.util.Log; |
| |
| import com.android.internal.messages.nano.SystemMessageProto.SystemMessage; |
| import com.android.wm.shell.R; |
| import com.android.wm.shell.pip.PipMediaController; |
| |
| import java.util.Objects; |
| |
| /** |
| * A notification that informs users that PIP is running and also provides PIP controls. |
| * <p>Once it's created, it will manage the PIP notification UI by itself except for handling |
| * configuration changes. |
| */ |
| public class TvPipNotificationController { |
| private static final String TAG = "TvPipNotification"; |
| private static final boolean DEBUG = TvPipController.DEBUG; |
| |
| // Referenced in com.android.systemui.util.NotificationChannels. |
| public static final String NOTIFICATION_CHANNEL = "TVPIP"; |
| private static final String NOTIFICATION_TAG = "TvPip"; |
| private static final String SYSTEMUI_PERMISSION = "com.android.systemui.permission.SELF"; |
| |
| private static final String ACTION_SHOW_PIP_MENU = |
| "com.android.wm.shell.pip.tv.notification.action.SHOW_PIP_MENU"; |
| private static final String ACTION_CLOSE_PIP = |
| "com.android.wm.shell.pip.tv.notification.action.CLOSE_PIP"; |
| |
| private final Context mContext; |
| private final PackageManager mPackageManager; |
| private final NotificationManager mNotificationManager; |
| private final Notification.Builder mNotificationBuilder; |
| private final ActionBroadcastReceiver mActionBroadcastReceiver; |
| private final Handler mMainHandler; |
| private Delegate mDelegate; |
| |
| private String mDefaultTitle; |
| |
| /** Package name for the application that owns PiP window. */ |
| private String mPackageName; |
| private boolean mNotified; |
| private String mMediaTitle; |
| private Bitmap mArt; |
| |
| public TvPipNotificationController(Context context, PipMediaController pipMediaController, |
| Handler mainHandler) { |
| mContext = context; |
| mPackageManager = context.getPackageManager(); |
| mNotificationManager = context.getSystemService(NotificationManager.class); |
| mMainHandler = mainHandler; |
| |
| mNotificationBuilder = new Notification.Builder(context, NOTIFICATION_CHANNEL) |
| .setLocalOnly(true) |
| .setOngoing(false) |
| .setCategory(Notification.CATEGORY_SYSTEM) |
| .setShowWhen(true) |
| .setSmallIcon(R.drawable.pip_icon) |
| .extend(new Notification.TvExtender() |
| .setContentIntent(createPendingIntent(context, ACTION_SHOW_PIP_MENU)) |
| .setDeleteIntent(createPendingIntent(context, ACTION_CLOSE_PIP))); |
| |
| mActionBroadcastReceiver = new ActionBroadcastReceiver(); |
| |
| pipMediaController.addMetadataListener(this::onMediaMetadataChanged); |
| |
| onConfigurationChanged(context); |
| } |
| |
| void setDelegate(Delegate delegate) { |
| if (DEBUG) Log.d(TAG, "setDelegate(), delegate=" + delegate); |
| if (mDelegate != null) { |
| throw new IllegalStateException( |
| "The delegate has already been set and should not change."); |
| } |
| if (delegate == null) { |
| throw new IllegalArgumentException("The delegate must not be null."); |
| } |
| |
| mDelegate = delegate; |
| } |
| |
| void show(String packageName) { |
| if (mDelegate == null) { |
| throw new IllegalStateException("Delegate is not set."); |
| } |
| |
| mPackageName = packageName; |
| update(); |
| mActionBroadcastReceiver.register(); |
| } |
| |
| void dismiss() { |
| mNotificationManager.cancel(NOTIFICATION_TAG, SystemMessage.NOTE_TV_PIP); |
| mNotified = false; |
| mPackageName = null; |
| mActionBroadcastReceiver.unregister(); |
| } |
| |
| private void onMediaMetadataChanged(MediaMetadata metadata) { |
| if (updateMediaControllerMetadata(metadata) && mNotified) { |
| // update notification |
| update(); |
| } |
| } |
| |
| /** |
| * Called by {@link PipController} when the configuration is changed. |
| */ |
| void onConfigurationChanged(Context context) { |
| mDefaultTitle = context.getResources().getString(R.string.pip_notification_unknown_title); |
| if (mNotified) { |
| // Update the notification. |
| update(); |
| } |
| } |
| |
| private void update() { |
| mNotified = true; |
| mNotificationBuilder |
| .setWhen(System.currentTimeMillis()) |
| .setContentTitle(getNotificationTitle()); |
| if (mArt != null) { |
| mNotificationBuilder.setStyle(new Notification.BigPictureStyle() |
| .bigPicture(mArt)); |
| } else { |
| mNotificationBuilder.setStyle(null); |
| } |
| mNotificationManager.notify(NOTIFICATION_TAG, SystemMessage.NOTE_TV_PIP, |
| mNotificationBuilder.build()); |
| } |
| |
| private boolean updateMediaControllerMetadata(MediaMetadata metadata) { |
| String title = null; |
| Bitmap art = null; |
| if (metadata != null) { |
| title = metadata.getString(MediaMetadata.METADATA_KEY_DISPLAY_TITLE); |
| if (TextUtils.isEmpty(title)) { |
| title = metadata.getString(MediaMetadata.METADATA_KEY_TITLE); |
| } |
| art = metadata.getBitmap(MediaMetadata.METADATA_KEY_ALBUM_ART); |
| if (art == null) { |
| art = metadata.getBitmap(MediaMetadata.METADATA_KEY_ART); |
| } |
| } |
| |
| if (TextUtils.equals(title, mMediaTitle) && Objects.equals(art, mArt)) { |
| return false; |
| } |
| |
| mMediaTitle = title; |
| mArt = art; |
| |
| return true; |
| } |
| |
| |
| private String getNotificationTitle() { |
| if (!TextUtils.isEmpty(mMediaTitle)) { |
| return mMediaTitle; |
| } |
| |
| final String applicationTitle = getApplicationLabel(mPackageName); |
| if (!TextUtils.isEmpty(applicationTitle)) { |
| return applicationTitle; |
| } |
| |
| return mDefaultTitle; |
| } |
| |
| private String getApplicationLabel(String packageName) { |
| try { |
| final ApplicationInfo appInfo = mPackageManager.getApplicationInfo(packageName, 0); |
| return mPackageManager.getApplicationLabel(appInfo).toString(); |
| } catch (PackageManager.NameNotFoundException e) { |
| return null; |
| } |
| } |
| |
| private static PendingIntent createPendingIntent(Context context, String action) { |
| return PendingIntent.getBroadcast(context, 0, |
| new Intent(action).setPackage(context.getPackageName()), |
| PendingIntent.FLAG_CANCEL_CURRENT | PendingIntent.FLAG_IMMUTABLE); |
| } |
| |
| private class ActionBroadcastReceiver extends BroadcastReceiver { |
| final IntentFilter mIntentFilter; |
| { |
| mIntentFilter = new IntentFilter(); |
| mIntentFilter.addAction(ACTION_CLOSE_PIP); |
| mIntentFilter.addAction(ACTION_SHOW_PIP_MENU); |
| } |
| boolean mRegistered = false; |
| |
| void register() { |
| if (mRegistered) return; |
| |
| mContext.registerReceiverForAllUsers(this, mIntentFilter, SYSTEMUI_PERMISSION, |
| mMainHandler); |
| mRegistered = true; |
| } |
| |
| void unregister() { |
| if (!mRegistered) return; |
| |
| mContext.unregisterReceiver(this); |
| mRegistered = false; |
| } |
| |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| final String action = intent.getAction(); |
| if (DEBUG) Log.d(TAG, "on(Broadcast)Receive(), action=" + action); |
| |
| if (ACTION_SHOW_PIP_MENU.equals(action)) { |
| mDelegate.showPictureInPictureMenu(); |
| } else if (ACTION_CLOSE_PIP.equals(action)) { |
| mDelegate.closePip(); |
| } |
| } |
| } |
| |
| interface Delegate { |
| void showPictureInPictureMenu(); |
| void closePip(); |
| } |
| } |