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
17package com.android.browser;
18
19import android.app.DownloadManager;
20import android.content.ActivityNotFoundException;
21import android.content.BroadcastReceiver;
22import android.content.Context;
23import android.content.Intent;
24import android.net.Uri;
25import android.os.Handler;
26import 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 */
34public class OpenDownloadReceiver extends BroadcastReceiver {
35    private static Handler sAsyncHandler;
36    static {
37        HandlerThread thr = new HandlerThread("Open browser download async");
38        thr.start();
39        sAsyncHandler = new Handler(thr.getLooper());
40    }
41    @Override
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
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     */
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