| /* |
| * Copyright (C) 2017 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.wallpaper.model; |
| |
| import android.app.Activity; |
| import android.content.Context; |
| |
| import com.android.wallpaper.asset.Asset; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * Default category for a collection of WallpaperInfo objects. |
| */ |
| public class WallpaperCategory extends Category { |
| |
| protected final Object mWallpapersLock; |
| private final List<WallpaperInfo> mWallpapers; |
| private Asset mThumbAsset; |
| private int mFeaturedThumbnailIndex; |
| |
| public WallpaperCategory(String title, String collectionId, List<WallpaperInfo> wallpapers, |
| int priority) { |
| this(title, collectionId, 0, wallpapers, priority); |
| } |
| |
| public WallpaperCategory(String title, String collectionId, int featuredThumbnailIndex, |
| List<WallpaperInfo> wallpapers, int priority) { |
| super(title, collectionId, priority); |
| mWallpapers = wallpapers; |
| mWallpapersLock = new Object(); |
| mFeaturedThumbnailIndex = featuredThumbnailIndex; |
| } |
| |
| /** |
| * Fetches wallpapers for this category and passes them to the receiver. Subclasses may use a |
| * context to fetch wallpaper info. |
| */ |
| public void fetchWallpapers(Context unused, WallpaperReceiver receiver, boolean forceReload) { |
| // Perform a shallow clone so as not to pass the reference to the list along to clients. |
| receiver.onWallpapersReceived(new ArrayList<>(mWallpapers)); |
| } |
| |
| @Override |
| public void show(Activity srcActivity, PickerIntentFactory factory, int requestCode) { |
| srcActivity.startActivityForResult( |
| factory.newIntent(srcActivity, getCollectionId()), requestCode); |
| } |
| |
| @Override |
| public boolean isEnumerable() { |
| return true; |
| } |
| |
| /** |
| * Returns the mutable list of wallpapers backed by this WallpaperCategory. All reads and writes |
| * on the returned list must be synchronized with {@code mWallpapersLock}. |
| */ |
| protected List<WallpaperInfo> getMutableWallpapers() { |
| return mWallpapers; |
| } |
| |
| @Override |
| public Asset getThumbnail(Context context) { |
| synchronized (mWallpapersLock) { |
| if (mThumbAsset == null && mWallpapers.size() > 0) { |
| mThumbAsset = mWallpapers.get(mFeaturedThumbnailIndex).getThumbAsset(context); |
| } |
| } |
| return mThumbAsset; |
| } |
| |
| @Override |
| public boolean supportsThirdParty() { |
| return false; |
| } |
| |
| @Override |
| public boolean containsThirdParty(String packageName) { |
| return false; |
| } |
| } |