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author | Zeno Albisser <zeno.albisser@digia.com> | 2013-08-15 21:46:11 +0200 |
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committer | Zeno Albisser <zeno.albisser@digia.com> | 2013-08-15 21:46:11 +0200 |
commit | 679147eead574d186ebf3069647b4c23e8ccace6 (patch) | |
tree | fc247a0ac8ff119f7c8550879ebb6d3dd8d1ff69 /chromium/third_party/WebKit/Source/core/rendering/RenderImage.h | |
download | qtwebengine-chromium-679147eead574d186ebf3069647b4c23e8ccace6.tar.gz |
Initial import.
Diffstat (limited to 'chromium/third_party/WebKit/Source/core/rendering/RenderImage.h')
-rw-r--r-- | chromium/third_party/WebKit/Source/core/rendering/RenderImage.h | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/chromium/third_party/WebKit/Source/core/rendering/RenderImage.h b/chromium/third_party/WebKit/Source/core/rendering/RenderImage.h new file mode 100644 index 00000000000..6c4aeedb4df --- /dev/null +++ b/chromium/third_party/WebKit/Source/core/rendering/RenderImage.h @@ -0,0 +1,134 @@ +/* + * Copyright (C) 1999 Lars Knoll (knoll@kde.org) + * (C) 1999 Antti Koivisto (koivisto@kde.org) + * (C) 2006 Allan Sandfeld Jensen (kde@carewolf.com) + * (C) 2006 Samuel Weinig (sam.weinig@gmail.com) + * Copyright (C) 2004, 2005, 2006, 2007, 2009, 2010, 2011 Apple Inc. All rights reserved. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public License + * along with this library; see the file COPYING.LIB. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + * Boston, MA 02110-1301, USA. + * + */ + +#ifndef RenderImage_h +#define RenderImage_h + +#include "core/rendering/RenderImageResource.h" +#include "core/rendering/RenderReplaced.h" + +namespace WebCore { + +class HTMLAreaElement; +class HTMLMapElement; + +class RenderImage : public RenderReplaced { +public: + RenderImage(Element*); + virtual ~RenderImage(); + + static RenderImage* createAnonymous(Document*); + + void setImageResource(PassOwnPtr<RenderImageResource>); + + RenderImageResource* imageResource() { return m_imageResource.get(); } + const RenderImageResource* imageResource() const { return m_imageResource.get(); } + ImageResource* cachedImage() const { return m_imageResource ? m_imageResource->cachedImage() : 0; } + + bool setImageSizeForAltText(ImageResource* newImage = 0); + + void updateAltText(); + + HTMLMapElement* imageMap() const; + void areaElementFocusChanged(HTMLAreaElement*); + + void highQualityRepaintTimerFired(Timer<RenderImage>*); + + void setIsGeneratedContent(bool generated = true) { m_isGeneratedContent = generated; } + + bool isGeneratedContent() const { return m_isGeneratedContent; } + + String altText() const { return m_altText; } + +protected: + virtual bool needsPreferredWidthsRecalculation() const OVERRIDE FINAL; + virtual RenderBox* embeddedContentBox() const OVERRIDE FINAL; + virtual void computeIntrinsicRatioInformation(FloatSize& intrinsicSize, double& intrinsicRatio, bool& isPercentageIntrinsicSize) const OVERRIDE FINAL; + + virtual void styleDidChange(StyleDifference, const RenderStyle*) OVERRIDE FINAL; + + virtual void imageChanged(WrappedImagePtr, const IntRect* = 0); + + void paintIntoRect(GraphicsContext*, const LayoutRect&); + virtual void paint(PaintInfo&, const LayoutPoint&) OVERRIDE FINAL; + virtual void layout(); + + virtual void intrinsicSizeChanged() + { + if (m_imageResource) + imageChanged(m_imageResource->imagePtr()); + } + +private: + virtual const char* renderName() const { return "RenderImage"; } + + virtual bool isImage() const { return true; } + virtual bool isRenderImage() const OVERRIDE FINAL { return true; } + + virtual void paintReplaced(PaintInfo&, const LayoutPoint&); + + virtual bool foregroundIsKnownToBeOpaqueInRect(const LayoutRect& localRect, unsigned maxDepthToTest) const OVERRIDE FINAL; + virtual bool computeBackgroundIsKnownToBeObscured() OVERRIDE FINAL; + + virtual LayoutUnit minimumReplacedHeight() const OVERRIDE; + + virtual void notifyFinished(Resource*) OVERRIDE FINAL; + virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction) OVERRIDE FINAL; + + virtual bool boxShadowShouldBeAppliedToBackground(BackgroundBleedAvoidance, InlineFlowBox*) const OVERRIDE FINAL; + + IntSize imageSizeForError(ImageResource*) const; + void imageDimensionsChanged(bool imageSizeChanged, const IntRect* = 0); + bool updateIntrinsicSizeIfNeeded(const LayoutSize&, bool imageSizeChanged); + + void paintAreaElementFocusRing(PaintInfo&); + + // Text to display as long as the image isn't available. + String m_altText; + OwnPtr<RenderImageResource> m_imageResource; + bool m_needsToSetSizeForAltText; + bool m_didIncrementVisuallyNonEmptyPixelCount; + bool m_isGeneratedContent; + + friend class RenderImageScaleObserver; +}; + +inline RenderImage* toRenderImage(RenderObject* object) +{ + ASSERT_WITH_SECURITY_IMPLICATION(!object || object->isRenderImage()); + return static_cast<RenderImage*>(object); +} + +inline const RenderImage* toRenderImage(const RenderObject* object) +{ + ASSERT_WITH_SECURITY_IMPLICATION(!object || object->isRenderImage()); + return static_cast<const RenderImage*>(object); +} + +// This will catch anyone doing an unnecessary cast. +void toRenderImage(const RenderImage*); + +} // namespace WebCore + +#endif // RenderImage_h |