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                             && Downloads.isStatusSuccess(status)) {
  55                         Intent launchIntent = new Intent(Intent.ACTION_VIEW);
  56                         Uri path = Uri.parse(filename);
  57                         // If there is no scheme, then it must be a file
  58                         if (path.getScheme() == null) {
  59                             path = Uri.fromFile(new File(filename));
  60                         }
  61                         launchIntent.setDataAndType(path, mimetype);
  62                         launchIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
  63                         try {
  64                             context.startActivity(launchIntent);
  65                         } catch (ActivityNotFoundException ex) {
  66                             Toast.makeText(context,
  67                                     R.string.download_no_application_title,
  68                                     Toast.LENGTH_LONG).show();
  69                         }
  70                     } else {
  71                         // Open the downloads page
  72                         Intent pageView = new Intent(context,
  73                                 BrowserDownloadPage.class);
  74                         pageView.setData(data);
  75                         pageView.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
  76                         context.startActivity(pageView);
  77                     }
  78                 } else if (Intent.ACTION_DELETE.equals(action)) {
  79                     if (deleteFile(cr, filename, mimetype)) {
  80                         cr.delete(data, null, null);
  81                     }
  82                 }
  83             }
  84         } finally {
  85             if (cursor != null) cursor.close();
  86         }
  87     }
  88
  89     /**
  90      * Remove the file from the SD card
  91      * @param cr ContentResolver used to delete the file.
  92      * @param filename Name of the file to delete.
  93      * @param mimetype Mimetype of the file to delete.
  94      * @return boolean True on success, false on failure.
  95      */
  96     private boolean deleteFile(ContentResolver cr, String filename,
  97             String mimetype) {
  98         Uri uri;
  99         if (mimetype.startsWith("image")) {
 100             uri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
 101         } else if (mimetype.startsWith("audio")) {
 102             uri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
 103         } else if (mimetype.startsWith("video")) {
 104             uri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
 105         } else {
 106             uri = null;
 107         }
 108         return (uri != null && cr.delete(uri, MediaStore.MediaColumns.DATA
 109                 + " = " + DatabaseUtils.sqlEscapeString(filename), null) > 0)
 110                 || new File(filename).delete();
 111     }
 112 }