/* * 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.imusic;import android.content.Context;import android.content.Intent;import android.content.BroadcastReceiver;import android.content.SharedPreferences;import android.util.Log;import android.view.KeyEvent;import android.os.Handler;import android.os.Message;/** *  */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);                        context.startActivity(i);                        mLaunched = true;                    }                    break;            }        }    };        @Override    public void onReceive(Context context, Intent intent) {        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.        if (keycode == KeyEvent.KEYCODE_HEADSETHOOK) {            if (action == KeyEvent.ACTION_DOWN) {                if (!mDown) {                    // only if this isn't a repeat event                                        // We're not using the original time of the event as the                    // base here, because in some cases it can take more than                    // one second for us to receive the event, in which case                    // we would go immediately to auto shuffle mode, even if                    // the user didn't long press.                    mHandler.sendMessageDelayed(                            mHandler.obtainMessage(MSG_LONGPRESS_TIMEOUT, context),                            LONG_PRESS_DELAY);                                        SharedPreferences pref = context.getSharedPreferences("Music",                             Context.MODE_WORLD_READABLE | Context.MODE_WORLD_WRITEABLE);                    String q = pref.getString("queue", "");                    // 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 (eventtime - mLastClickTime < 300) {                        i.putExtra(MediaPlaybackService.CMDNAME, MediaPlaybackService.CMDNEXT);                        context.startService(i);                        mLastClickTime = 0;                    } else {                        i.putExtra(MediaPlaybackService.CMDNAME,                                MediaPlaybackService.CMDTOGGLEPAUSE);                        context.startService(i);                        mLastClickTime = eventtime;                    }                    mLaunched = false;                    mDown = true;                }            } else {                mHandler.removeMessages(MSG_LONGPRESS_TIMEOUT);                mDown = false;            }            abortBroadcast();        }    }}