/*
* Copyright (C) 2007 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.music;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.media.AudioManager;
import android.os.Handler;
import android.os.Message;
import android.view.KeyEvent;
/**
*
*/
public class MediaButtonIntentReceiver extends BroadcastReceiver {
private static final int MSG_LONGPRESS_TIMEOUT = 1;
private static final int LONG_PRESS_DELAY = 1000;
private static long mLastClickTime = 0;
private static boolean mDown = false;
private static boolean mLaunched = false;
private static Handler mHandler = new Handler() {
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case MSG_LONGPRESS_TIMEOUT:
if (!mLaunched) {
Context context = (Context)msg.obj;
Intent i = new Intent();
i.putExtra("autoshuffle", "true");
i.setClass(context, MusicBrowserActivity.class);
i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TOP);
context.startActivity(i);
mLaunched = true;
}
break;
}
}
};
@Override
public void onReceive(Context context, Intent intent) {
String intentAction = intent.getAction();
if (AudioManager.ACTION_AUDIO_BECOMING_NOISY.equals(intentAction)) {
Intent i = new Intent(context, MediaPlaybackService.class);
i.setAction(MediaPlaybackService.SERVICECMD);
i.putExtra(MediaPlaybackService.CMDNAME, MediaPlaybackService.CMDPAUSE);
context.startService(i);
} else if (Intent.ACTION_MEDIA_BUTTON.equals(intentAction)) {
KeyEvent event = (KeyEvent)
intent.getParcelableExtra(Intent.EXTRA_KEY_EVENT);
if (event == null) {
return;
}
int keycode = event.getKeyCode();
int action = event.getAction();
long eventtime = event.getEventTime();
// single quick press: pause/resume.
// double press: next track
// long press: start auto-shuffle mode.
String command = null;
switch (keycode) {
case KeyEvent.KEYCODE_MEDIA_STOP:
command = MediaPlaybackService.CMDSTOP;
break;
case KeyEvent.KEYCODE_HEADSETHOOK:
case KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE:
command = MediaPlaybackService.CMDTOGGLEPAUSE;
break;
case KeyEvent.KEYCODE_MEDIA_NEXT:
command = MediaPlaybackService.CMDNEXT;
break;
case KeyEvent.KEYCODE_MEDIA_PREVIOUS:
command = MediaPlaybackService.CMDPREVIOUS;
break;
case KeyEvent.KEYCODE_MEDIA_PAUSE:
command = MediaPlaybackService.CMDPAUSE;
break;
case KeyEvent.KEYCODE_MEDIA_PLAY:
command = MediaPlaybackService.CMDPLAY;
break;
}
if (command != null) {
if (action == KeyEvent.ACTION_DOWN) {
if (mDown) {
if ((MediaPlaybackService.CMDTOGGLEPAUSE.equals(command) ||
MediaPlaybackService.CMDPLAY.equals(command))
&& mLastClickTime != 0
&& eventtime - mLastClickTime > LONG_PRESS_DELAY) {
mHandler.sendMessage(
mHandler.obtainMessage(MSG_LONGPRESS_TIMEOUT, context));
}
} else if (event.getRepeatCount() == 0) {
// only consider the first event in a sequence, not the repeat events,
// so that we don't trigger in cases where the first event went to
// a different app (e.g. when the user ends a phone call by
// long pressing the headset button)
// The service may or may not be running, but we need to send it
// a command.
Intent i = new Intent(context, MediaPlaybackService.class);
i.setAction(MediaPlaybackService.SERVICECMD);
if (keycode == KeyEvent.KEYCODE_HEADSETHOOK &&
eventtime - mLastClickTime < 300) {
i.putExtra(MediaPlaybackService.CMDNAME, MediaPlaybackService.CMDNEXT);
context.startService(i);
mLastClickTime = 0;
} else {
i.putExtra(MediaPlaybackService.CMDNAME, command);
context.startService(i);
mLastClickTime = eventtime;
}
mLaunched = false;
mDown = true;
}
} else {
mHandler.removeMessages(MSG_LONGPRESS_TIMEOUT);
mDown = false;
}
if (isOrderedBroadcast()) {
abortBroadcast();
}
}
}
}
}