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.gallery3d.data; 18 19 import com.android.gallery3d.app.GalleryApp; 20 21 public class FilterSource extends MediaSource { 22 @SuppressWarnings("unused") 23 private static final String TAG = "FilterSource"; 24 private static final int FILTER_BY_MEDIATYPE = 0; 25 private static final int FILTER_BY_DELETE = 1; 26 private static final int FILTER_BY_EMPTY = 2; 27 private static final int FILTER_BY_EMPTY_ITEM = 3; 28 private static final int FILTER_BY_CAMERA_SHORTCUT = 4; 29 private static final int FILTER_BY_CAMERA_SHORTCUT_ITEM = 5; 30 31 public static final String FILTER_EMPTY_ITEM = "/filter/empty_prompt"; 32 public static final String FILTER_CAMERA_SHORTCUT = "/filter/camera_shortcut"; 33 private static final String FILTER_CAMERA_SHORTCUT_ITEM = "/filter/camera_shortcut_item"; 34 35 private GalleryApp mApplication; 36 private PathMatcher mMatcher; 37 private MediaItem mEmptyItem; 38 private MediaItem mCameraShortcutItem; 39 40 public FilterSource(GalleryApp application) { 41 super("filter"); 42 mApplication = application; 43 mMatcher = new PathMatcher(); 44 mMatcher.add("/filter/mediatype/*/*", FILTER_BY_MEDIATYPE); 45 mMatcher.add("/filter/delete/*", FILTER_BY_DELETE); 46 mMatcher.add("/filter/empty/*", FILTER_BY_EMPTY); 47 mMatcher.add(FILTER_EMPTY_ITEM, FILTER_BY_EMPTY_ITEM); 48 mMatcher.add(FILTER_CAMERA_SHORTCUT, FILTER_BY_CAMERA_SHORTCUT); 49 mMatcher.add(FILTER_CAMERA_SHORTCUT_ITEM, FILTER_BY_CAMERA_SHORTCUT_ITEM); 50 51 mEmptyItem = new EmptyAlbumImage(Path.fromString(FILTER_EMPTY_ITEM), 52 mApplication); 53 mCameraShortcutItem = new CameraShortcutImage( 54 Path.fromString(FILTER_CAMERA_SHORTCUT_ITEM), mApplication); 55 } 56 57 // The name we accept are: 58 // /filter/mediatype/k/{set} where k is the media type we want. 59 // /filter/delete/{set} 60 @Override 61 public MediaObject createMediaObject(Path path) { 62 int matchType = mMatcher.match(path); 63 DataManager dataManager = mApplication.getDataManager(); 64 switch (matchType) { 65 case FILTER_BY_MEDIATYPE: { 66 int mediaType = mMatcher.getIntVar(0); 67 String setsName = mMatcher.getVar(1); 68 MediaSet[] sets = dataManager.getMediaSetsFromString(setsName); 69 return new FilterTypeSet(path, dataManager, sets[0], mediaType); 70 } 71 case FILTER_BY_DELETE: { 72 String setsName = mMatcher.getVar(0); 73 MediaSet[] sets = dataManager.getMediaSetsFromString(setsName); 74 return new FilterDeleteSet(path, sets[0]); 75 } 76 case FILTER_BY_EMPTY: { 77 String setsName = mMatcher.getVar(0); 78 MediaSet[] sets = dataManager.getMediaSetsFromString(setsName); 79 return new FilterEmptyPromptSet(path, sets[0], mEmptyItem); 80 } 81 case FILTER_BY_EMPTY_ITEM: { 82 return mEmptyItem; 83 } 84 case FILTER_BY_CAMERA_SHORTCUT: { 85 return new SingleItemAlbum(path, mCameraShortcutItem); 86 } 87 case FILTER_BY_CAMERA_SHORTCUT_ITEM: { 88 return mCameraShortcutItem; 89 } 90 default: 91 throw new RuntimeException("bad path: " + path); 92 } 93 } 94 } 95
