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| 1 /* | |
| 2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) | |
| 3 * (C) 1999 Antti Koivisto (koivisto@kde.org) | |
| 4 * (C) 2006 Allan Sandfeld Jensen (kde@carewolf.com) | |
| 5 * (C) 2006 Samuel Weinig (sam.weinig@gmail.com) | |
| 6 * Copyright (C) 2004, 2005, 2006, 2007, 2009, 2010, 2011 Apple Inc. All rights
reserved. | |
| 7 * | |
| 8 * This library is free software; you can redistribute it and/or | |
| 9 * modify it under the terms of the GNU Library General Public | |
| 10 * License as published by the Free Software Foundation; either | |
| 11 * version 2 of the License, or (at your option) any later version. | |
| 12 * | |
| 13 * This library is distributed in the hope that it will be useful, | |
| 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 16 * Library General Public License for more details. | |
| 17 * | |
| 18 * You should have received a copy of the GNU Library General Public License | |
| 19 * along with this library; see the file COPYING.LIB. If not, write to | |
| 20 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, | |
| 21 * Boston, MA 02110-1301, USA. | |
| 22 * | |
| 23 */ | |
| 24 | |
| 25 #ifndef RenderImage_h | |
| 26 #define RenderImage_h | |
| 27 | |
| 28 #include "core/rendering/RenderImageResource.h" | |
| 29 #include "core/rendering/RenderReplaced.h" | |
| 30 | |
| 31 namespace blink { | |
| 32 | |
| 33 class HTMLAreaElement; | |
| 34 class HTMLMapElement; | |
| 35 | |
| 36 class RenderImage : public RenderReplaced { | |
| 37 public: | |
| 38 // These are the paddings to use when displaying either alt text or an image
. | |
| 39 static const unsigned short paddingWidth = 4; | |
| 40 static const unsigned short paddingHeight = 4; | |
| 41 | |
| 42 RenderImage(Element*); | |
| 43 virtual ~RenderImage(); | |
| 44 virtual void destroy() override; | |
| 45 | |
| 46 static RenderImage* createAnonymous(Document*); | |
| 47 | |
| 48 void setImageResource(PassOwnPtr<RenderImageResource>); | |
| 49 | |
| 50 RenderImageResource* imageResource() { return m_imageResource.get(); } | |
| 51 const RenderImageResource* imageResource() const { return m_imageResource.ge
t(); } | |
| 52 ImageResource* cachedImage() const { return m_imageResource ? m_imageResourc
e->cachedImage() : 0; } | |
| 53 | |
| 54 HTMLMapElement* imageMap() const; | |
| 55 void areaElementFocusChanged(HTMLAreaElement*); | |
| 56 | |
| 57 void setIsGeneratedContent(bool generated = true) { m_isGeneratedContent = g
enerated; } | |
| 58 | |
| 59 bool isGeneratedContent() const { return m_isGeneratedContent; } | |
| 60 | |
| 61 inline void setImageDevicePixelRatio(float factor) { m_imageDevicePixelRatio
= factor; } | |
| 62 float imageDevicePixelRatio() const { return m_imageDevicePixelRatio; } | |
| 63 | |
| 64 virtual void intrinsicSizeChanged() override | |
| 65 { | |
| 66 if (m_imageResource) | |
| 67 imageChanged(m_imageResource->imagePtr()); | |
| 68 } | |
| 69 | |
| 70 protected: | |
| 71 virtual bool needsPreferredWidthsRecalculation() const override final; | |
| 72 virtual RenderBox* embeddedContentBox() const override final; | |
| 73 virtual void computeIntrinsicRatioInformation(FloatSize& intrinsicSize, doub
le& intrinsicRatio) const override final; | |
| 74 | |
| 75 virtual void imageChanged(WrappedImagePtr, const IntRect* = 0) override; | |
| 76 | |
| 77 virtual void paint(const PaintInfo&, const LayoutPoint&) override final; | |
| 78 | |
| 79 virtual void layout() override; | |
| 80 virtual bool updateImageLoadingPriorities() override final; | |
| 81 | |
| 82 virtual bool isOfType(LayoutObjectType type) const override { return type ==
LayoutObjectRenderImage || RenderReplaced::isOfType(type); } | |
| 83 | |
| 84 private: | |
| 85 virtual const char* renderName() const override { return "RenderImage"; } | |
| 86 | |
| 87 virtual bool isImage() const override { return true; } | |
| 88 | |
| 89 virtual void paintReplaced(const PaintInfo&, const LayoutPoint&) override; | |
| 90 | |
| 91 virtual bool foregroundIsKnownToBeOpaqueInRect(const LayoutRect& localRect,
unsigned maxDepthToTest) const override final; | |
| 92 virtual bool computeBackgroundIsKnownToBeObscured() override final; | |
| 93 | |
| 94 virtual bool backgroundShouldAlwaysBeClipped() const override { return true;
} | |
| 95 | |
| 96 virtual LayoutUnit minimumReplacedHeight() const override; | |
| 97 | |
| 98 virtual void notifyFinished(Resource*) override final; | |
| 99 virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, const HitTes
tLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAct
ion) override final; | |
| 100 | |
| 101 virtual bool boxShadowShouldBeAppliedToBackground(BackgroundBleedAvoidance,
InlineFlowBox*) const override final; | |
| 102 | |
| 103 void repaintOrMarkForLayout(const IntRect* = 0); | |
| 104 void updateIntrinsicSizeIfNeeded(const LayoutSize&); | |
| 105 // Update the size of the image to be rendered. Object-fit may cause this to
be different from the CSS box's content rect. | |
| 106 void updateInnerContentRect(); | |
| 107 | |
| 108 // Text to display as long as the image isn't available. | |
| 109 OwnPtr<RenderImageResource> m_imageResource; | |
| 110 bool m_didIncrementVisuallyNonEmptyPixelCount; | |
| 111 bool m_isGeneratedContent; | |
| 112 float m_imageDevicePixelRatio; | |
| 113 | |
| 114 friend class RenderImageScaleObserver; | |
| 115 }; | |
| 116 | |
| 117 DEFINE_LAYOUT_OBJECT_TYPE_CASTS(RenderImage, isRenderImage()); | |
| 118 | |
| 119 } // namespace blink | |
| 120 | |
| 121 #endif // RenderImage_h | |
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Chromium Code Reviews
Issue 923953002:
Move rendering/RenderImage* to layout/LayoutImage* (Closed)
Base URL: https://chromium.googlesource.com/chromium/blink.git@master