1 package com.android.systemui.volume; 2 3 import android.content.Context; 4 import android.content.Intent; 5 import android.content.res.Configuration; 6 import android.database.ContentObserver; 7 import android.media.AudioManager; 8 import android.media.IRemoteVolumeController; 9 import android.media.IVolumeController; 10 import android.media.session.ISessionController; 11 import android.media.session.MediaController; 12 import android.media.session.MediaSessionManager; 13 import android.net.Uri; 14 import android.os.AsyncTask; 15 import android.os.Handler; 16 import android.os.RemoteException; 17 import android.os.UserHandle; 18 import android.provider.Settings; 19 import android.util.Log; 20 import android.view.WindowManagerGlobal; 21 22 import com.android.systemui.R; 23 import com.android.systemui.SystemUI; 24 import com.android.systemui.keyguard.KeyguardViewMediator; 25 import com.android.systemui.statusbar.phone.PhoneStatusBar; 26 import com.android.systemui.statusbar.policy.ZenModeController; 27 import com.android.systemui.statusbar.policy.ZenModeControllerImpl; 28 29 import java.io.FileDescriptor; 30 import java.io.PrintWriter; 31 32 /* 33 * Copyright (C) 2014 The Android Open Source Project 34 * 35 * Licensed under the Apache License, Version 2.0 (the "License"); 36 * you may not use this file except in compliance with the License. 37 * You may obtain a copy of the License at 38 * 39 * http://www.apache.org/licenses/LICENSE-2.0 40 * 41 * Unless required by applicable law or agreed to in writing, software 42 * distributed under the License is distributed on an "AS IS" BASIS, 43 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 44 * See the License for the specific language governing permissions and 45 * limitations under the License. 46 */ 47 48 public class VolumeUI extends SystemUI { 49 private static final String TAG = "VolumeUI"; 50 private static final String SETTING = "systemui_volume_controller"; // for testing 51 private static final Uri SETTING_URI = Settings.Global.getUriFor(SETTING); 52 private static final int DEFAULT = 1; // enabled by default 53 54 private final Handler mHandler = new Handler(); 55 56 private AudioManager mAudioManager; 57 private MediaSessionManager mMediaSessionManager; 58 private VolumeController mVolumeController; 59 private RemoteVolumeController mRemoteVolumeController; 60 61 private VolumePanel mPanel; 62 private int mDismissDelay; 63 64 @Override 65 public void start() { 66 mAudioManager = (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE); 67 mMediaSessionManager = (MediaSessionManager) mContext 68 .getSystemService(Context.MEDIA_SESSION_SERVICE); 69 initPanel(); 70 mVolumeController = new VolumeController(); 71 mRemoteVolumeController = new RemoteVolumeController(); 72 putComponent(VolumeComponent.class, mVolumeController); 73 updateController(); 74 mContext.getContentResolver().registerContentObserver(SETTING_URI, false, mObserver); 75 } 76 77 @Override 78 protected void onConfigurationChanged(Configuration newConfig) { 79 super.onConfigurationChanged(newConfig); 80 if (mPanel != null) { 81 mPanel.onConfigurationChanged(newConfig); 82 } 83 } 84 85 @Override 86 public void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 87 if (mPanel != null) { 88 mPanel.dump(fd, pw, args); 89 } 90 } 91 92 private void updateController() { 93 if (Settings.Global.getInt(mContext.getContentResolver(), SETTING, DEFAULT) != 0) { 94 Log.d(TAG, "Registering volume controller"); 95 mAudioManager.setVolumeController(mVolumeController); 96 mMediaSessionManager.setRemoteVolumeController(mRemoteVolumeController); 97 } else { 98 Log.d(TAG, "Unregistering volume controller"); 99 mAudioManager.setVolumeController(null); 100 mMediaSessionManager.setRemoteVolumeController(null); 101 } 102 } 103 104 private void initPanel() { 105 mDismissDelay = mContext.getResources().getInteger(R.integer.volume_panel_dismiss_delay); 106 mPanel = new VolumePanel(mContext, new ZenModeControllerImpl(mContext, mHandler)); 107 mPanel.setCallback(new VolumePanel.Callback() { 108 @Override 109 public void onZenSettings() { 110 mHandler.removeCallbacks(mStartZenSettings); 111 mHandler.post(mStartZenSettings); 112 } 113 114 @Override 115 public void onInteraction() { 116 final KeyguardViewMediator kvm = getComponent(KeyguardViewMediator.class); 117 if (kvm != null) { 118 kvm.userActivity(); 119 } 120 } 121 122 @Override 123 public void onVisible(boolean visible) { 124 if (mAudioManager != null && mVolumeController != null) { 125 mAudioManager.notifyVolumeControllerVisible(mVolumeController, visible); 126 } 127 } 128 }); 129 } 130 131 private final ContentObserver mObserver = new ContentObserver(mHandler) { 132 public void onChange(boolean selfChange, Uri uri) { 133 if (SETTING_URI.equals(uri)) { 134 updateController(); 135 } 136 } 137 }; 138 139 private final Runnable mStartZenSettings = new Runnable() { 140 @Override 141 public void run() { 142 getComponent(PhoneStatusBar.class).startActivityDismissingKeyguard( 143 ZenModePanel.ZEN_SETTINGS, true /* onlyProvisioned */, true /* dismissShade */); 144 mPanel.postDismiss(mDismissDelay); 145 } 146 }; 147 148 /** For now, simply host an unmodified base volume panel in this process. */ 149 private final class VolumeController extends IVolumeController.Stub implements VolumeComponent { 150 151 @Override 152 public void displaySafeVolumeWarning(int flags) throws RemoteException { 153 mPanel.postDisplaySafeVolumeWarning(flags); 154 } 155 156 @Override 157 public void volumeChanged(int streamType, int flags) 158 throws RemoteException { 159 mPanel.postVolumeChanged(streamType, flags); 160 } 161 162 @Override 163 public void masterVolumeChanged(int flags) throws RemoteException { 164 mPanel.postMasterVolumeChanged(flags); 165 } 166 167 @Override 168 public void masterMuteChanged(int flags) throws RemoteException { 169 mPanel.postMasterMuteChanged(flags); 170 } 171 172 @Override 173 public void setLayoutDirection(int layoutDirection) 174 throws RemoteException { 175 mPanel.postLayoutDirection(layoutDirection); 176 } 177 178 @Override 179 public void dismiss() throws RemoteException { 180 mPanel.postDismiss(0); 181 } 182 183 @Override 184 public ZenModeController getZenController() { 185 return mPanel.getZenController(); 186 } 187 } 188 189 private final class RemoteVolumeController extends IRemoteVolumeController.Stub { 190 191 @Override 192 public void remoteVolumeChanged(ISessionController binder, int flags) 193 throws RemoteException { 194 MediaController controller = new MediaController(mContext, binder); 195 mPanel.postRemoteVolumeChanged(controller, flags); 196 } 197 198 @Override 199 public void updateRemoteController(ISessionController session) throws RemoteException { 200 mPanel.postRemoteSliderVisibility(session != null); 201 // TODO stash default session in case the slider can be opened other 202 // than by remoteVolumeChanged. 203 } 204 } 205 } 206
