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package com.android.systemui.volume;
import android.app.ActivityManagerNative;
import android.content.Context;
import android.content.Intent;
import android.database.ContentObserver;
import android.media.AudioManager;
import android.media.IRemoteVolumeController;
import android.media.IVolumeController;
import android.media.session.ISessionController;
import android.media.session.MediaController;
import android.media.session.MediaSessionManager;
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Handler;
import android.os.RemoteException;
import android.os.UserHandle;
import android.provider.Settings;
import android.util.Log;
import com.android.systemui.R;
import com.android.systemui.SystemUI;
import com.android.systemui.keyguard.KeyguardViewMediator;
import com.android.systemui.statusbar.policy.ZenModeController;
import com.android.systemui.statusbar.policy.ZenModeControllerImpl;
import java.io.FileDescriptor;
import java.io.PrintWriter;
/*
* 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 final Handler mHandler = new Handler();
private AudioManager mAudioManager;
private MediaSessionManager mMediaSessionManager;
private VolumeController mVolumeController;
private RemoteVolumeController mRemoteVolumeController;
private VolumePanel mPanel;
private int mDismissDelay;
@Override
public void start() {
mAudioManager = (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE);
mMediaSessionManager = (MediaSessionManager) mContext
.getSystemService(Context.MEDIA_SESSION_SERVICE);
initPanel();
mVolumeController = new VolumeController();
mRemoteVolumeController = new RemoteVolumeController();
putComponent(VolumeComponent.class, mVolumeController);
updateController();
mContext.getContentResolver().registerContentObserver(SETTING_URI, false, mObserver);
}
@Override
public void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
if (mPanel != null) {
mPanel.dump(fd, pw, args);
}
}
private void updateController() {
if (Settings.Global.getInt(mContext.getContentResolver(), SETTING, DEFAULT) != 0) {
Log.d(TAG, "Registering volume controller");
mAudioManager.setVolumeController(mVolumeController);
mMediaSessionManager.setRemoteVolumeController(mRemoteVolumeController);
} else {
Log.d(TAG, "Unregistering volume controller");
mAudioManager.setVolumeController(null);
mMediaSessionManager.setRemoteVolumeController(null);
}
}
private void initPanel() {
mDismissDelay = mContext.getResources().getInteger(R.integer.volume_panel_dismiss_delay);
mPanel = new VolumePanel(mContext, new ZenModeControllerImpl(mContext, mHandler));
mPanel.setCallback(new VolumePanel.Callback() {
@Override
public void onZenSettings() {
mHandler.removeCallbacks(mStartZenSettings);
mHandler.post(mStartZenSettings);
}
@Override
public void onInteraction() {
final KeyguardViewMediator kvm = getComponent(KeyguardViewMediator.class);
if (kvm != null) {
kvm.userActivity();
}
}
@Override
public void onVisible(boolean visible) {
if (mAudioManager != null && mVolumeController != null) {
mAudioManager.notifyVolumeControllerVisible(mVolumeController, visible);
}
}
});
}
private final ContentObserver mObserver = new ContentObserver(mHandler) {
public void onChange(boolean selfChange, Uri uri) {
if (SETTING_URI.equals(uri)) {
updateController();
}
}
};
private final Runnable mStartZenSettings = new Runnable() {
@Override
public void run() {
AsyncTask.execute(new Runnable() {
@Override
public void run() {
try {
// Dismiss the lock screen when Settings starts.
ActivityManagerNative.getDefault().dismissKeyguardOnNextActivity();
} catch (RemoteException e) {
}
final Intent intent = ZenModePanel.ZEN_SETTINGS;
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TOP);
mContext.startActivityAsUser(intent, new UserHandle(UserHandle.USER_CURRENT));
// dismiss shade if showing
mContext.sendBroadcast(new Intent(Intent.ACTION_CLOSE_SYSTEM_DIALOGS));
}
});
mPanel.postDismiss(mDismissDelay);
}
};
/** For now, simply host an unmodified base volume panel in this process. */
private final class VolumeController extends IVolumeController.Stub implements VolumeComponent {
@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.postLayoutDirection(layoutDirection);
}
@Override
public void dismiss() throws RemoteException {
mPanel.postDismiss(0);
}
@Override
public ZenModeController getZenController() {
return mPanel.getZenController();
}
}
private final class RemoteVolumeController extends IRemoteVolumeController.Stub {
@Override
public void remoteVolumeChanged(ISessionController binder, int flags)
throws RemoteException {
MediaController controller = new MediaController(binder);
mPanel.postRemoteVolumeChanged(controller, flags);
}
@Override
public void updateRemoteController(ISessionController session) throws RemoteException {
mPanel.postRemoteSliderVisibility(session != null);
// TODO stash default session in case the slider can be opened other
// than by remoteVolumeChanged.
}
}
}
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