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// Copyright 2017 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef THIRD_PARTY_BLINK_RENDERER_CORE_HTML_CANVAS_IMAGE_ELEMENT_BASE_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_HTML_CANVAS_IMAGE_ELEMENT_BASE_H_
#include "third_party/blink/renderer/core/core_export.h"
#include "third_party/blink/renderer/core/html/canvas/canvas_image_source.h"
#include "third_party/blink/renderer/core/imagebitmap/image_bitmap_source.h"
#include "third_party/blink/renderer/platform/graphics/image.h"
namespace blink {
class Element;
class ImageLoader;
class ImageResourceContent;
class CORE_EXPORT ImageElementBase : public CanvasImageSource,
public ImageBitmapSource {
public:
virtual ImageLoader& GetImageLoader() const = 0;
// Parses the given async parameter value into an ImageDecodingMode. This is
// used by SVGImageElement and HTMLImageElement since this class is a common
// base for both elements.
static Image::ImageDecodingMode ParseImageDecodingMode(const AtomicString&);
IntSize BitmapSourceSize() const override;
ScriptPromise CreateImageBitmap(ScriptState*,
EventTarget&,
base::Optional<IntRect>,
const ImageBitmapOptions*) override;
scoped_refptr<Image> GetSourceImageForCanvas(SourceImageStatus*,
AccelerationHint,
const FloatSize&) override;
bool WouldTaintOrigin() const override;
FloatSize ElementSize(const FloatSize& default_object_size) const override;
FloatSize DefaultDestinationSize(
const FloatSize& default_object_size) const override;
bool IsAccelerated() const override;
bool IsSVGSource() const override;
bool IsImageElement() const override;
bool IsOpaque() const override;
const KURL& SourceURL() const override;
ImageResourceContent* CachedImage() const;
// Returns the decoding mode that should be used when painting this element,
// given the PaintImage::Id that will be used to paint it.
// Used with HTMLImageElement and SVGImageElement types.
Image::ImageDecodingMode GetDecodingModeForPainting(PaintImage::Id);
protected:
Image::ImageDecodingMode decoding_mode_ =
Image::ImageDecodingMode::kUnspecifiedDecode;
private:
const Element& GetElement() const;
// The id for the PaintImage used the last time this element was painted.
PaintImage::Id last_painted_image_id_ = PaintImage::kInvalidId;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_CORE_HTML_CANVAS_IMAGE_ELEMENT_BASE_H_