| /* |
| * Copyright (c) 2013, Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef ImageBitmapFactories_h |
| #define ImageBitmapFactories_h |
| |
| #include "bindings/core/v8/HTMLImageElementOrHTMLVideoElementOrHTMLCanvasElementOrBlobOrImageDataOrImageBitmap.h" |
| #include "bindings/core/v8/ScriptPromise.h" |
| #include "bindings/core/v8/ScriptPromiseResolver.h" |
| #include "bindings/core/v8/ScriptState.h" |
| #include "core/fileapi/FileReaderLoader.h" |
| #include "core/fileapi/FileReaderLoaderClient.h" |
| #include "core/imagebitmap/ImageBitmapOptions.h" |
| #include "platform/Supplementable.h" |
| #include "platform/geometry/IntRect.h" |
| #include "third_party/skia/include/core/SkRefCnt.h" |
| #include <memory> |
| |
| class SkImage; |
| |
| namespace blink { |
| |
| class Blob; |
| class EventTarget; |
| class ExceptionState; |
| class ExecutionContext; |
| class ImageBitmapSource; |
| class ImageBitmapOptions; |
| class WebTaskRunner; |
| |
| typedef HTMLImageElementOrHTMLVideoElementOrHTMLCanvasElementOrBlobOrImageDataOrImageBitmap |
| ImageBitmapSourceUnion; |
| |
| class ImageBitmapFactories final |
| : public GarbageCollectedFinalized<ImageBitmapFactories>, |
| public Supplement<LocalDOMWindow>, |
| public Supplement<WorkerGlobalScope> { |
| USING_GARBAGE_COLLECTED_MIXIN(ImageBitmapFactories); |
| |
| public: |
| static ScriptPromise createImageBitmap(ScriptState*, |
| EventTarget&, |
| const ImageBitmapSourceUnion&, |
| const ImageBitmapOptions&, |
| ExceptionState&); |
| static ScriptPromise createImageBitmap(ScriptState*, |
| EventTarget&, |
| const ImageBitmapSourceUnion&, |
| int sx, |
| int sy, |
| int sw, |
| int sh, |
| const ImageBitmapOptions&, |
| ExceptionState&); |
| static ScriptPromise createImageBitmap(ScriptState*, |
| EventTarget&, |
| ImageBitmapSource*, |
| Optional<IntRect> cropRect, |
| const ImageBitmapOptions&, |
| ExceptionState&); |
| static ScriptPromise createImageBitmapFromBlob(ScriptState*, |
| EventTarget&, |
| ImageBitmapSource*, |
| Optional<IntRect> cropRect, |
| const ImageBitmapOptions&, |
| ExceptionState&); |
| |
| virtual ~ImageBitmapFactories() {} |
| |
| DECLARE_TRACE(); |
| |
| protected: |
| static const char* supplementName(); |
| |
| private: |
| class ImageBitmapLoader final |
| : public GarbageCollectedFinalized<ImageBitmapLoader>, |
| public FileReaderLoaderClient { |
| public: |
| static ImageBitmapLoader* create(ImageBitmapFactories& factory, |
| Optional<IntRect> cropRect, |
| const ImageBitmapOptions& options, |
| ScriptState* scriptState) { |
| return new ImageBitmapLoader(factory, cropRect, scriptState, options); |
| } |
| |
| void loadBlobAsync(ExecutionContext*, Blob*); |
| ScriptPromise promise() { return m_resolver->promise(); } |
| |
| DECLARE_TRACE(); |
| |
| ~ImageBitmapLoader() override {} |
| |
| private: |
| ImageBitmapLoader(ImageBitmapFactories&, |
| Optional<IntRect> cropRect, |
| ScriptState*, |
| const ImageBitmapOptions&); |
| |
| void rejectPromise(); |
| |
| void scheduleAsyncImageBitmapDecoding(DOMArrayBuffer*); |
| void decodeImageOnDecoderThread(WebTaskRunner*, |
| DOMArrayBuffer*, |
| const String& premultiplyAlphaOption, |
| const String& colorSpaceConversionOption); |
| void resolvePromiseOnOriginalThread(sk_sp<SkImage>); |
| |
| // FileReaderLoaderClient |
| void didStartLoading() override {} |
| void didReceiveData() override {} |
| void didFinishLoading() override; |
| void didFail(FileError::ErrorCode) override; |
| |
| std::unique_ptr<FileReaderLoader> m_loader; |
| Member<ImageBitmapFactories> m_factory; |
| Member<ScriptPromiseResolver> m_resolver; |
| Optional<IntRect> m_cropRect; |
| ImageBitmapOptions m_options; |
| }; |
| |
| static ImageBitmapFactories& from(EventTarget&); |
| |
| template <class GlobalObject> |
| static ImageBitmapFactories& fromInternal(GlobalObject&); |
| |
| void addLoader(ImageBitmapLoader*); |
| void didFinishLoading(ImageBitmapLoader*); |
| |
| HeapHashSet<Member<ImageBitmapLoader>> m_pendingLoaders; |
| }; |
| |
| } // namespace blink |
| |
| #endif // ImageBitmapFactories_h |