1/*
2 * Copyright (C) 2016 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.dialer.callcomposer;
18
19import android.annotation.SuppressLint;
20import android.content.Context;
21import android.net.Uri;
22import android.provider.MediaStore.Files;
23import android.provider.MediaStore.Files.FileColumns;
24import android.provider.MediaStore.Images.Media;
25import android.support.v4.content.CursorLoader;
26
27/** A BoundCursorLoader that reads local media on the device. */
28public class GalleryCursorLoader extends CursorLoader {
29  public static final String MEDIA_SCANNER_VOLUME_EXTERNAL = "external";
30  public static final String[] ACCEPTABLE_IMAGE_TYPES =
31      new String[] {"image/jpeg", "image/jpg", "image/png", "image/webp"};
32
33  private static final Uri STORAGE_URI = Files.getContentUri(MEDIA_SCANNER_VOLUME_EXTERNAL);
34  private static final String SORT_ORDER = Media.DATE_MODIFIED + " DESC";
35  private static final String IMAGE_SELECTION = createSelection();
36
37  public GalleryCursorLoader(Context context) {
38    super(
39        context,
40        STORAGE_URI,
41        GalleryGridItemData.IMAGE_PROJECTION,
42        IMAGE_SELECTION,
43        null,
44        SORT_ORDER);
45  }
46
47  @SuppressLint("DefaultLocale")
48  private static String createSelection() {
49    return String.format(
50        "mime_type IN ('image/jpeg', 'image/jpg', 'image/png', 'image/webp')"
51            + " AND media_type in (%d)",
52        FileColumns.MEDIA_TYPE_IMAGE);
53  }
54}
55