diff options
Diffstat (limited to 'src/com/android/gallery3d/data/ComboAlbumSet.java')
-rw-r--r-- | src/com/android/gallery3d/data/ComboAlbumSet.java | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/src/com/android/gallery3d/data/ComboAlbumSet.java b/src/com/android/gallery3d/data/ComboAlbumSet.java new file mode 100644 index 000000000..3f3674500 --- /dev/null +++ b/src/com/android/gallery3d/data/ComboAlbumSet.java @@ -0,0 +1,96 @@ +/* + * Copyright (C) 2010 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package com.android.gallery3d.data; + +import com.android.gallery3d.R; +import com.android.gallery3d.app.GalleryApp; +import com.android.gallery3d.util.Future; + +// ComboAlbumSet combines multiple media sets into one. It lists all sub +// media sets from the input album sets. +// This only handles SubMediaSets, not MediaItems. (That's all we need now) +public class ComboAlbumSet extends MediaSet implements ContentListener { + @SuppressWarnings("unused") + private static final String TAG = "ComboAlbumSet"; + private final MediaSet[] mSets; + private final String mName; + + public ComboAlbumSet(Path path, GalleryApp application, MediaSet[] mediaSets) { + super(path, nextVersionNumber()); + mSets = mediaSets; + for (MediaSet set : mSets) { + set.addContentListener(this); + } + mName = application.getResources().getString( + R.string.set_label_all_albums); + } + + @Override + public MediaSet getSubMediaSet(int index) { + for (MediaSet set : mSets) { + int size = set.getSubMediaSetCount(); + if (index < size) { + return set.getSubMediaSet(index); + } + index -= size; + } + return null; + } + + @Override + public int getSubMediaSetCount() { + int count = 0; + for (MediaSet set : mSets) { + count += set.getSubMediaSetCount(); + } + return count; + } + + @Override + public String getName() { + return mName; + } + + @Override + public boolean isLoading() { + for (int i = 0, n = mSets.length; i < n; ++i) { + if (mSets[i].isLoading()) return true; + } + return false; + } + + @Override + public long reload() { + boolean changed = false; + for (int i = 0, n = mSets.length; i < n; ++i) { + long version = mSets[i].reload(); + if (version > mDataVersion) changed = true; + } + if (changed) mDataVersion = nextVersionNumber(); + return mDataVersion; + } + + @Override + public void onContentDirty() { + notifyContentChanged(); + } + + @Override + public Future<Integer> requestSync(SyncListener listener) { + return requestSyncOnMultipleSets(mSets, listener); + } +} |