1 /*
2  * Copyright (C) 2010 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package com.android.browser;
18 
19 import android.app.DownloadManager;
20 import android.content.ActivityNotFoundException;
21 import android.content.BroadcastReceiver;
22 import android.content.Context;
23 import android.content.Intent;
24 import android.net.Uri;
25 import android.os.Handler;
26 import android.os.HandlerThread;
27 
28 /**
29  * This {@link BroadcastReceiver} handles clicks to notifications that
30  * downloads from the browser are in progress/complete.  Clicking on an
31  * in-progress or failed download will open the download manager.  Clicking on
32  * a complete, successful download will open the file.
33  */
34 public class OpenDownloadReceiver extends BroadcastReceiver {
35     private static Handler sAsyncHandler;
36     static {
37         HandlerThread thr = new HandlerThread("Open browser download async");
thr.start()38         thr.start();
39         sAsyncHandler = new Handler(thr.getLooper());
40     }
41     @Override
onReceive(final Context context, Intent intent)42     public void onReceive(final Context context, Intent intent) {
43         String action = intent.getAction();
44         if (!DownloadManager.ACTION_NOTIFICATION_CLICKED.equals(action)) {
45             openDownloadsPage(context);
46             return;
47         }
48         long ids[] = intent.getLongArrayExtra(
49                 DownloadManager.EXTRA_NOTIFICATION_CLICK_DOWNLOAD_IDS);
50         if (ids == null || ids.length == 0) {
51             openDownloadsPage(context);
52             return;
53         }
54         final long id = ids[0];
55         final PendingResult result = goAsync();
56         Runnable worker = new Runnable() {
57             @Override
58             public void run() {
59                 onReceiveAsync(context, id);
60                 result.finish();
61             }
62         };
63         sAsyncHandler.post(worker);
64     }
65 
onReceiveAsync(Context context, long id)66     private void onReceiveAsync(Context context, long id) {
67         DownloadManager manager = (DownloadManager) context.getSystemService(
68                 Context.DOWNLOAD_SERVICE);
69         Uri uri = manager.getUriForDownloadedFile(id);
70         if (uri == null) {
71             // Open the downloads page
72             openDownloadsPage(context);
73         } else {
74             Intent launchIntent = new Intent(Intent.ACTION_VIEW);
75             launchIntent.setDataAndType(uri, manager.getMimeTypeForDownloadedFile(id));
76             launchIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
77             try {
78                 context.startActivity(launchIntent);
79             } catch (ActivityNotFoundException e) {
80                 openDownloadsPage(context);
81             }
82         }
83     }
84 
85     /**
86      * Open the Activity which shows a list of all downloads.
87      * @param context
88      */
openDownloadsPage(Context context)89     private void openDownloadsPage(Context context) {
90         Intent pageView = new Intent(DownloadManager.ACTION_VIEW_DOWNLOADS);
91         pageView.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
92         context.startActivity(pageView);
93     }
94 }
95