| /* |
| * 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.asset; |
| |
| import com.bumptech.glide.Priority; |
| import com.bumptech.glide.load.DataSource; |
| import com.bumptech.glide.load.Options; |
| import com.bumptech.glide.load.data.DataFetcher; |
| import com.bumptech.glide.load.model.ModelLoader; |
| import com.bumptech.glide.load.model.ModelLoaderFactory; |
| import com.bumptech.glide.load.model.MultiModelLoaderFactory; |
| |
| import java.io.InputStream; |
| |
| import androidx.annotation.Nullable; |
| |
| /** |
| * Glide ModelLoader which loads InputStreams from ResourceAssets. |
| */ |
| public class ResourceAssetLoader implements ModelLoader<ResourceAsset, InputStream> { |
| |
| @Override |
| public boolean handles(ResourceAsset resourceAsset) { |
| return true; |
| } |
| |
| @Nullable |
| @Override |
| public LoadData<InputStream> buildLoadData(ResourceAsset resourceAsset, int unusedWidth, |
| int unusedHeight, Options options) { |
| return new LoadData<>(resourceAsset.getKey(), new ResourceAssetFetcher(resourceAsset)); |
| } |
| |
| /** |
| * Factory that constructs {@link ResourceAssetLoader} instances. |
| */ |
| public static class ResourceAssetLoaderFactory |
| implements ModelLoaderFactory<ResourceAsset, InputStream> { |
| public ResourceAssetLoaderFactory() { |
| } |
| |
| @Override |
| public ModelLoader<ResourceAsset, InputStream> build(MultiModelLoaderFactory multiFactory) { |
| return new ResourceAssetLoader(); |
| } |
| |
| @Override |
| public void teardown() { |
| // no-op |
| } |
| } |
| |
| /** |
| * Glide DataFetcher for ResourceAsset. |
| */ |
| protected static class ResourceAssetFetcher implements DataFetcher<InputStream> { |
| |
| private ResourceAsset mResourceAsset; |
| |
| public ResourceAssetFetcher(ResourceAsset resourceAsset) { |
| mResourceAsset = resourceAsset; |
| } |
| |
| @Override |
| public void loadData(Priority priority, final DataCallback<? super InputStream> callback) { |
| callback.onDataReady( |
| mResourceAsset.getResources().openRawResource(mResourceAsset.getResId())); |
| } |
| |
| @Override |
| public DataSource getDataSource() { |
| return DataSource.LOCAL; |
| } |
| |
| @Override |
| public void cancel() { |
| // no op |
| } |
| |
| @Override |
| public void cleanup() { |
| // no op |
| } |
| |
| @Override |
| public Class<InputStream> getDataClass() { |
| return InputStream.class; |
| } |
| } |
| } |