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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();
}
}
}
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