src/com/android/browser/OpenDownloadReceiver.java

   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.content.ActivityNotFoundException;
  20 import android.content.BroadcastReceiver;
  21 import android.content.ContentResolver;
  22 import android.content.Context;
  23 import android.content.Intent;
  24 import android.database.Cursor;
  25 import android.database.DatabaseUtils;
  26 import android.net.Uri;
  27 import android.provider.Downloads;
  28 import android.provider.MediaStore;
  29 import android.widget.Toast;
  30
  31 import java.io.File;
  32
  33 /**
  34  * This {@link BroadcastReceiver} handles {@link Intent}s to open and delete
  35  * files downloaded by the Browser.
  36  */
  37 public class OpenDownloadReceiver extends BroadcastReceiver {
  38     public void onReceive(Context context, Intent intent) {
  39         ContentResolver cr = context.getContentResolver();
  40         Uri data = intent.getData();
  41         Cursor cursor = null;
  42         try {
  43             cursor = cr.query(data,
  44                     new String[] { Downloads.Impl._ID, Downloads.Impl._DATA,
  45                     Downloads.Impl.COLUMN_MIME_TYPE, Downloads.COLUMN_STATUS },
  46                     null, null, null);
  47             if (cursor.moveToFirst()) {
  48                 String filename = cursor.getString(1);
  49                 String mimetype = cursor.getString(2);
  50                 String action = intent.getAction();
  51                 if (Downloads.ACTION_NOTIFICATION_CLICKED.equals(action)) {
  52                     int status = cursor.getInt(3);
  53                     if (Downloads.isStatusCompleted(status)) {
  54                         Intent launchIntent = new Intent(Intent.ACTION_VIEW);
  55                         Uri path = Uri.parse(filename);
  56                         // If there is no scheme, then it must be a file
  57                         if (path.getScheme() == null) {
  58                             path = Uri.fromFile(new File(filename));
  59                         }
  60                         launchIntent.setDataAndType(path, mimetype);
  61                         launchIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
  62                         try {
  63                             context.startActivity(launchIntent);
  64                         } catch (ActivityNotFoundException ex) {
  65                             Toast.makeText(context,
  66                                     R.string.download_no_application_title,
  67                                     Toast.LENGTH_LONG).show();
  68                         }
  69                     } else {
  70                         // Open the downloads page
  71                         Intent pageView = new Intent(context,
  72                                 BrowserDownloadPage.class);
  73                         pageView.setData(data);
  74                         pageView.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
  75                         context.startActivity(pageView);
  76                     }
  77                 } else if (Intent.ACTION_DELETE.equals(action)) {
  78                     if (deleteFile(cr, filename, mimetype)) {
  79                         cr.delete(data, null, null);
  80                     }
  81                 }
  82             }
  83         } finally {
  84             if (cursor != null) cursor.close();
  85         }
  86     }
  87
  88     /**
  89      * Remove the file from the SD card
  90      * @param cr ContentResolver used to delete the file.
  91      * @param filename Name of the file to delete.
  92      * @param mimetype Mimetype of the file to delete.
  93      * @return boolean True on success, false on failure.
  94      */
  95     private boolean deleteFile(ContentResolver cr, String filename,
  96             String mimetype) {
  97         Uri uri;
  98         if (mimetype.startsWith("image")) {
  99             uri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
 100         } else if (mimetype.startsWith("audio")) {
 101             uri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
 102         } else if (mimetype.startsWith("video")) {
 103             uri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
 104         } else {
 105             uri = null;
 106         }
 107         return (uri != null && cr.delete(uri, MediaStore.MediaColumns.DATA
 108                 + " = " + DatabaseUtils.sqlEscapeString(filename), null) > 0)
 109                 || new File(filename).delete();
 110     }
 111 }