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295f920116
I wrote a script to do this which is attached to the bug. TBR=abarth@chromium.org BUG=435361 Review URL: https://codereview.chromium.org/736373003
111 lines
3.7 KiB
C++
111 lines
3.7 KiB
C++
/*
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* Copyright (C) 2008 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef SKY_ENGINE_CORE_CSS_CSSCANVASVALUE_H_
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#define SKY_ENGINE_CORE_CSS_CSSCANVASVALUE_H_
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#include "sky/engine/core/css/CSSImageGeneratorValue.h"
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#include "sky/engine/core/html/HTMLCanvasElement.h"
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namespace blink {
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class Document;
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class CSSCanvasValue : public CSSImageGeneratorValue {
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public:
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static PassRefPtr<CSSCanvasValue> create(const String& name)
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{
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return adoptRef(new CSSCanvasValue(name));
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}
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~CSSCanvasValue();
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String customCSSText() const;
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PassRefPtr<Image> image(RenderObject*, const IntSize&);
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bool isFixedSize() const { return true; }
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IntSize fixedSize(const RenderObject*);
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bool isPending() const { return false; }
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void loadSubimages(ResourceFetcher*) { }
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bool equals(const CSSCanvasValue&) const;
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private:
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explicit CSSCanvasValue(const String& name)
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: CSSImageGeneratorValue(CanvasClass)
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, m_canvasObserver(adoptPtr(new CanvasObserverProxy(this)))
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, m_name(name)
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, m_element(nullptr)
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{
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}
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// NOTE: We put the CanvasObserver in a member instead of inheriting from it
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// to avoid adding a vptr to CSSCanvasValue.
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class CanvasObserverProxy final : public CanvasObserver {
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public:
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explicit CanvasObserverProxy(CSSCanvasValue* ownerValue) : m_ownerValue(ownerValue) { }
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virtual void canvasChanged(HTMLCanvasElement* canvas, const FloatRect& changedRect) override
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{
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m_ownerValue->canvasChanged(canvas, changedRect);
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}
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virtual void canvasResized(HTMLCanvasElement* canvas) override
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{
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m_ownerValue->canvasResized(canvas);
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}
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#if !ENABLE(OILPAN)
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virtual void canvasDestroyed(HTMLCanvasElement* canvas) override
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{
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m_ownerValue->canvasDestroyed(canvas);
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}
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#endif
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private:
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RawPtr<CSSCanvasValue> m_ownerValue;
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};
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void canvasChanged(HTMLCanvasElement*, const FloatRect& changedRect);
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void canvasResized(HTMLCanvasElement*);
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#if !ENABLE(OILPAN)
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void canvasDestroyed(HTMLCanvasElement*);
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#endif
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HTMLCanvasElement* element(Document*);
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OwnPtr<CanvasObserverProxy> m_canvasObserver;
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// The name of the canvas.
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String m_name;
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// The document supplies the element and owns it.
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RawPtr<HTMLCanvasElement> m_element;
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};
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DEFINE_CSS_VALUE_TYPE_CASTS(CSSCanvasValue, isCanvasValue());
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} // namespace blink
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#endif // SKY_ENGINE_CORE_CSS_CSSCANVASVALUE_H_
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