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/*
* 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 THIRD_PARTY_BLINK_RENDERER_CORE_IMAGEBITMAP_IMAGE_BITMAP_FACTORIES_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_IMAGEBITMAP_IMAGE_BITMAP_FACTORIES_H_
#include <memory>
#include "base/single_thread_task_runner.h"
#include "third_party/blink/renderer/bindings/core/v8/image_bitmap_source.h"
#include "third_party/blink/renderer/bindings/core/v8/script_promise.h"
#include "third_party/blink/renderer/bindings/core/v8/script_promise_resolver.h"
#include "third_party/blink/renderer/bindings/core/v8/v8_image_bitmap_options.h"
#include "third_party/blink/renderer/core/execution_context/execution_context_lifecycle_observer.h"
#include "third_party/blink/renderer/core/fileapi/file_reader_loader.h"
#include "third_party/blink/renderer/core/fileapi/file_reader_loader_client.h"
#include "third_party/blink/renderer/core/frame/window_or_worker_global_scope.h"
#include "third_party/blink/renderer/platform/bindings/name_client.h"
#include "third_party/blink/renderer/platform/bindings/script_state.h"
#include "third_party/blink/renderer/platform/geometry/int_rect.h"
#include "third_party/blink/renderer/platform/image-decoders/image_decoder.h"
#include "third_party/blink/renderer/platform/supplementable.h"
#include "third_party/skia/include/core/SkRefCnt.h"
class SkImage;
namespace blink {
class Blob;
class ExecutionContext;
class ImageBitmapSource;
class ImageBitmapFactories final
: public GarbageCollected<ImageBitmapFactories>,
public Supplement<ExecutionContext>,
public NameClient {
USING_GARBAGE_COLLECTED_MIXIN(ImageBitmapFactories);
public:
static const char kSupplementName[];
static ScriptPromise CreateImageBitmap(ScriptState*,
const ImageBitmapSourceUnion&,
const ImageBitmapOptions*,
ExceptionState&);
static ScriptPromise CreateImageBitmap(ScriptState*,
const ImageBitmapSourceUnion&,
int sx,
int sy,
int sw,
int sh,
const ImageBitmapOptions*,
ExceptionState&);
virtual ~ImageBitmapFactories() = default;
void Trace(Visitor*) override;
const char* NameInHeapSnapshot() const override {
return "ImageBitmapLoader";
}
private:
class ImageBitmapLoader final : public GarbageCollected<ImageBitmapLoader>,
public ExecutionContextLifecycleObserver,
public FileReaderLoaderClient {
USING_GARBAGE_COLLECTED_MIXIN(ImageBitmapLoader);
public:
static ImageBitmapLoader* Create(ImageBitmapFactories& factory,
base::Optional<IntRect> crop_rect,
const ImageBitmapOptions* options,
ScriptState* script_state) {
return MakeGarbageCollected<ImageBitmapLoader>(factory, crop_rect,
script_state, options);
}
ImageBitmapLoader(ImageBitmapFactories&,
base::Optional<IntRect> crop_rect,
ScriptState*,
const ImageBitmapOptions*);
void LoadBlobAsync(Blob*);
ScriptPromise Promise() { return resolver_->Promise(); }
void Trace(Visitor*) override;
~ImageBitmapLoader() override;
private:
SEQUENCE_CHECKER(sequence_checker_);
enum ImageBitmapRejectionReason {
kUndecodableImageBitmapRejectionReason,
kAllocationFailureImageBitmapRejectionReason,
};
void RejectPromise(ImageBitmapRejectionReason);
void ScheduleAsyncImageBitmapDecoding(ArrayBufferContents);
void ResolvePromiseOnOriginalThread(sk_sp<SkImage>,
const ImageOrientationEnum);
// ExecutionContextLifecycleObserver
void ContextDestroyed() override;
// FileReaderLoaderClient
void DidStartLoading() override {}
void DidReceiveData() override {}
void DidFinishLoading() override;
void DidFail(FileErrorCode) override;
std::unique_ptr<FileReaderLoader> loader_;
Member<ImageBitmapFactories> factory_;
Member<ScriptPromiseResolver> resolver_;
base::Optional<IntRect> crop_rect_;
Member<const ImageBitmapOptions> options_;
};
static ImageBitmapFactories& From(ExecutionContext&);
static ScriptPromise CreateImageBitmap(ScriptState*,
ImageBitmapSource*,
base::Optional<IntRect> crop_rect,
const ImageBitmapOptions*,
ExceptionState&);
static ScriptPromise CreateImageBitmapFromBlob(
ScriptState*,
ImageBitmapSource*,
base::Optional<IntRect> crop_rect,
const ImageBitmapOptions*);
void AddLoader(ImageBitmapLoader*);
void DidFinishLoading(ImageBitmapLoader*);
HeapHashSet<Member<ImageBitmapLoader>> pending_loaders_;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_CORE_IMAGEBITMAP_IMAGE_BITMAP_FACTORIES_H_
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