1 package org.hedgewars.mobile;

     2 

     3 import java.io.File;

     4 import java.util.ArrayList;

     5 

     6 import android.app.Notification;

     7 import android.app.NotificationManager;

     8 import android.app.PendingIntent;

     9 import android.app.Service;

    10 import android.content.Context;

    11 import android.content.Intent;

    12 import android.os.Handler;

    13 import android.os.IBinder;

    14 import android.os.Message;

    15 import android.os.Messenger;

    16 import android.os.RemoteException;

    17 import android.util.Log;

    18 import android.widget.RemoteViews;

    19 import android.widget.Toast;

    20 

    21 public class DownloadService extends Service {

    22 

    23 	private final static String URL = "http://www.xelification.com/tmp/data.zip";

    24 	public static final int MSG_CANCEL = 0;

    25 	public static final int MSG_REGISTER_CLIENT = 1;

    26 	public static final int MSG_UNREGISTER_CLIENT = 2;

    27 

    28 	public static final int NOTIFICATION_PROCESSING = 0;

    29 	public static final int NOTIFICATION_DONE = 1;

    30 

    31 	private DownloadAsyncTask downloadTask;

    32 	private final Messenger messenger = new Messenger(new DownloadHandler());

    33 	private NotificationManager nM;

    34 	private RemoteViews contentView;

    35 	private Notification notification;

    36 

    37 	private ArrayList<Messenger> clientList = new ArrayList<Messenger>();

    38 	private Message onRegisterMessage = null;

    39 

    40 

    41 	class DownloadHandler extends Handler{

    42 

    43 		public void handleMessage(Message msg){

    44 			switch(msg.what){

    45 			case MSG_CANCEL:

    46 				downloadTask.cancel(false);

    47 				break;

    48 			case MSG_REGISTER_CLIENT:

    49 				clientList.add(msg.replyTo);

    50 				if(onRegisterMessage != null){

    51 					try {

    52 						msg.replyTo.send(Message.obtain(onRegisterMessage));

    53 					} catch (RemoteException e) {

    54 						e.printStackTrace();

    55 					}

    56 				}

    57 				break;

    58 			case MSG_UNREGISTER_CLIENT:

    59 				clientList.remove(msg.replyTo);

    60 				break;

    61 			}

    62 		}

    63 	}

    64 

    65 	public final static int TASKID_START = 0;

    66 	public final static int TASKID_CANCEL = 1;

    67 	

    68 	public int onStartCommand(Intent intent, int flags, int startId){

    69 		switch(intent.getIntExtra("taskID", TASKID_START)){

    70 		case TASKID_START:

    71 			nM = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);

    72 

    73 			notification = new Notification(R.drawable.statusbar, getString(R.string.notification_title), System.currentTimeMillis());

    74 			//notification.flags |= Notification.FLAG_ONGOING_EVENT;// | Notification.FLAG_NO_CLEAR | Notification.FLAG_FOREGROUND_SERVICE;

    75 			notification.flags |= Notification.FLAG_ONGOING_EVENT;

    76 

    77 			contentView = new RemoteViews(getPackageName(), R.layout.notification);

    78 			contentView.setProgressBar(R.id.notification_progress, 100, 34, false);

    79 			notification.contentView = contentView;

    80 

    81 			PendingIntent contentIntent = PendingIntent.getActivity(this, 0, new Intent(this, DownloadActivity.class), Intent.FLAG_ACTIVITY_NEW_TASK);

    82 			notification.contentIntent = contentIntent;

    83 

    84 			//nM.notify(NOTIFICATION_PROCESSING, notification);

    85 			startForeground(NOTIFICATION_PROCESSING, notification);

    86 

    87 			if(downloadTask == null){

    88 				downloadTask = new DownloadAsyncTask(this);

    89 				downloadTask.execute(getDownloadPath(this), URL);

    90 			}	

    91 			break;

    92 		case TASKID_CANCEL:

    93 			downloadTask.cancel(false);

    94 			stopService();

    95 			break;

    96 		}		

    97 		return 0;

    98 	}

    99 

   100 	public void onDestroy(){

   101 		Log.e("bla", "onDestroy");

   102 		downloadTask.cancel(false);	

   103 	}

   104 

   105 	public IBinder onBind(Intent intent) {

   106 		return messenger.getBinder();

   107 	}

   108 

   109 	/*

   110 	 * Thread safe method to let clients know the processing is starting and will process int max kbytes

   111 	 * 

   112 	 */

   113 	public void start(int max){

   114 		onRegisterMessage = Message.obtain(null, DownloadActivity.MSG_START, max, -1);

   115 		sendMessageToClients(onRegisterMessage);

   116 	}

   117 

   118 	public void update(int progress, int max, String fileName){

   119 		progress = (progress/1024);

   120 		updateNotification(progress, max, fileName);

   121 

   122 		sendMessageToClients(Message.obtain(null, DownloadActivity.MSG_UPDATE, progress, max, fileName));

   123 	}

   124 	public void done(boolean succesful){

   125 		sendMessageToClients(Message.obtain(null, DownloadActivity.MSG_DONE));

   126 		stopService();//stopService clears all notifications and thus must be called before we show the ready notification

   127 		showDoneNotification();

   128 	}

   129 

   130 	private void stopService(){

   131 		nM.cancelAll();

   132 		stopForeground(true);

   133 		stopSelf();

   134 	}

   135 	

   136 	private void updateNotification(int progress, int max, String fileName){

   137 

   138 		contentView.setProgressBar(R.id.notification_progress, max, progress, false);

   139 		contentView.setTextViewText(R.id.progressbar_sub, String.format("%dkb/%dkb (Compressed sizes)", progress, max));

   140 		nM.notify(NOTIFICATION_PROCESSING, notification);

   141 	}

   142 

   143 	private void showDoneNotification(){

   144 		nM.cancelAll();

   145 		stopForeground(true);

   146 

   147 		String title = getString(R.string.notification_title);

   148 

   149 		notification = new Notification(R.drawable.icon, title, System.currentTimeMillis());

   150 		notification.flags |= Notification.FLAG_AUTO_CANCEL;

   151 		PendingIntent contentIntent = PendingIntent.getActivity(this, 0, new Intent(this, MainActivity.class), Intent.FLAG_ACTIVITY_NEW_TASK);

   152 		notification.setLatestEventInfo(this, title, getString(R.string.notification_done), contentIntent);

   153 		nM.notify(NOTIFICATION_DONE, notification);

   154 	}	

   155 	private void sendMessageToClients(Message msg){

   156 		for(Messenger m : clientList){

   157 			try {

   158 				m.send(Message.obtain(msg));

   159 			} catch (RemoteException e) {}//TODO should we catch this properly?

   160 		}

   161 	}

   162 	public static String getDownloadPath(Context c){

   163 		File f =  c.getExternalCacheDir();

   164 		if(f != null){

   165 			return f.getAbsolutePath() + '/';

   166 		}else{

   167 			Toast.makeText(c, R.string.sdcard_not_mounted, Toast.LENGTH_LONG);

   168 			return null;

   169 		}

   170 	}

   171 }