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      1 /*
      2  * Copyright (C) 2009 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.camera.gallery;
     18 
     19 import android.content.ContentResolver;
     20 import android.database.Cursor;
     21 import android.net.Uri;
     22 import android.provider.MediaStore.Images;
     23 import android.provider.MediaStore.Video.Media;
     24 
     25 import java.util.HashMap;
     26 
     27 /**
     28  * A collection of all the <code>VideoObject</code> in gallery.
     29  */
     30 public class VideoList extends BaseImageList {
     31 
     32     @SuppressWarnings("unused")
     33     private static final String TAG = "BaseImageList";
     34 
     35     private static final String[] VIDEO_PROJECTION = new String[] {
     36             Media._ID,
     37             Media.DATA,
     38             Media.DATE_TAKEN,
     39             Media.TITLE,
     40             Media.MINI_THUMB_MAGIC,
     41             Media.MIME_TYPE,
     42             Media.DATE_MODIFIED};
     43 
     44     private static final int INDEX_ID = 0;
     45     private static final int INDEX_DATA_PATH = 1;
     46     private static final int INDEX_DATE_TAKEN = 2;
     47     private static final int INDEX_TITLE = 3;
     48     private static final int INDEX_MIMI_THUMB_MAGIC = 4;
     49     private static final int INDEX_MIME_TYPE = 5;
     50     private static final int INDEX_DATE_MODIFIED = 6;
     51 
     52     @Override
     53     protected long getImageId(Cursor cursor) {
     54         return cursor.getLong(INDEX_ID);
     55     }
     56 
     57     @Override
     58     protected BaseImage loadImageFromCursor(Cursor cursor) {
     59         long id = cursor.getLong(INDEX_ID);
     60         String dataPath = cursor.getString(INDEX_DATA_PATH);
     61         long dateTaken = cursor.getLong(INDEX_DATE_TAKEN);
     62         if (dateTaken == 0) {
     63             dateTaken = cursor.getLong(INDEX_DATE_MODIFIED) * 1000;
     64         }
     65         long miniThumbMagic = cursor.getLong(INDEX_MIMI_THUMB_MAGIC);
     66         String title = cursor.getString(INDEX_TITLE);
     67         String mimeType = cursor.getString(INDEX_MIME_TYPE);
     68         if (title == null || title.length() == 0) {
     69             title = dataPath;
     70         }
     71         return new VideoObject(this, mContentResolver,
     72                 id, cursor.getPosition(), contentUri(id), dataPath,
     73                 mimeType, dateTaken, title);
     74     }
     75 
     76     public VideoList(ContentResolver resolver, Uri uri, int sort,
     77             String bucketId) {
     78         super(resolver, uri, sort, bucketId);
     79     }
     80 
     81     public HashMap<String, String> getBucketIds() {
     82         Uri uri = mBaseUri.buildUpon()
     83                 .appendQueryParameter("distinct", "true").build();
     84         Cursor c = Images.Media.query(
     85                 mContentResolver, uri,
     86                 new String[] {
     87                     Media.BUCKET_DISPLAY_NAME,
     88                     Media.BUCKET_ID
     89                 },
     90                 whereClause(), whereClauseArgs(), sortOrder());
     91         try {
     92             HashMap<String, String> hash = new HashMap<String, String>();
     93             while (c.moveToNext()) {
     94                 hash.put(c.getString(1), c.getString(0));
     95             }
     96             return hash;
     97         } finally {
     98             c.close();
     99         }
    100     }
    101 
    102     protected String whereClause() {
    103         return mBucketId != null
    104                 ? Images.Media.BUCKET_ID + " = '" + mBucketId + "'"
    105                 : null;
    106     }
    107 
    108     protected String[] whereClauseArgs() {
    109         return null;
    110     }
    111 
    112     @Override
    113     protected Cursor createCursor() {
    114         Cursor c = Images.Media.query(
    115                 mContentResolver, mBaseUri, VIDEO_PROJECTION,
    116                 whereClause(), whereClauseArgs(), sortOrder());
    117         return c;
    118     }
    119 }
    120