| package com.android.systemui.volume; |
| |
| import android.content.Context; |
| import android.database.ContentObserver; |
| import android.media.AudioManager; |
| import android.media.IVolumeController; |
| import android.net.Uri; |
| import android.os.Handler; |
| import android.os.RemoteException; |
| import android.provider.Settings; |
| import android.util.Log; |
| |
| import com.android.systemui.SystemUI; |
| |
| /* |
| * Copyright (C) 2014 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. |
| */ |
| |
| public class VolumeUI extends SystemUI { |
| private static final String TAG = "VolumeUI"; |
| private static final String SETTING = "systemui_volume_controller"; // for testing |
| private static final Uri SETTING_URI = Settings.Global.getUriFor(SETTING); |
| private static final int DEFAULT = 1; // enabled by default |
| |
| private AudioManager mAudioManager; |
| private VolumeController mVolumeController; |
| |
| @Override |
| public void start() { |
| mAudioManager = (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE); |
| updateController(); |
| mContext.getContentResolver().registerContentObserver(SETTING_URI, false, mObserver); |
| } |
| |
| private void updateController() { |
| if (Settings.Global.getInt(mContext.getContentResolver(), SETTING, DEFAULT) != 0) { |
| if (mVolumeController == null) { |
| mVolumeController = new VolumeController(mContext); |
| } |
| Log.d(TAG, "Registering volume controller"); |
| mAudioManager.setVolumeController(mVolumeController); |
| } else { |
| Log.d(TAG, "Unregistering volume controller"); |
| mAudioManager.setVolumeController(null); |
| } |
| } |
| |
| private final ContentObserver mObserver = new ContentObserver(new Handler()) { |
| public void onChange(boolean selfChange, Uri uri) { |
| if (SETTING_URI.equals(uri)) { |
| updateController(); |
| } |
| } |
| }; |
| |
| /** For now, simply host an unmodified base volume panel in this process. */ |
| private final class VolumeController extends IVolumeController.Stub { |
| private final VolumePanel mPanel; |
| |
| public VolumeController(Context context) { |
| mPanel = new VolumePanel(context); |
| } |
| |
| @Override |
| public void hasNewRemotePlaybackInfo() throws RemoteException { |
| mPanel.postHasNewRemotePlaybackInfo(); |
| } |
| |
| @Override |
| public void remoteVolumeChanged(int streamType, int flags) |
| throws RemoteException { |
| mPanel.postRemoteVolumeChanged(streamType, flags); |
| } |
| |
| @Override |
| public void remoteSliderVisibility(boolean visible) |
| throws RemoteException { |
| mPanel.postRemoteSliderVisibility(visible); |
| } |
| |
| @Override |
| public void displaySafeVolumeWarning(int flags) throws RemoteException { |
| mPanel.postDisplaySafeVolumeWarning(flags); |
| } |
| |
| @Override |
| public void volumeChanged(int streamType, int flags) |
| throws RemoteException { |
| mPanel.postVolumeChanged(streamType, flags); |
| } |
| |
| @Override |
| public void masterVolumeChanged(int flags) throws RemoteException { |
| mPanel.postMasterVolumeChanged(flags); |
| } |
| |
| @Override |
| public void masterMuteChanged(int flags) throws RemoteException { |
| mPanel.postMasterMuteChanged(flags); |
| } |
| |
| @Override |
| public void setLayoutDirection(int layoutDirection) |
| throws RemoteException { |
| mPanel.setLayoutDirection(layoutDirection); |
| } |
| |
| @Override |
| public void dismiss() throws RemoteException { |
| mPanel.postDismiss(); |
| } |
| } |
| } |