The Tor Browser / file comparison
comparison: layout/svg/SVGFEImageFrame.cpp
layout/svg/SVGFEImageFrame.cpp
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
equal
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replaced
| -1:000000000000 | 0:b22ddc77ef54 |
|---|---|
| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 // Keep in (case-insensitive) order: | |
| 7 #include "nsContentUtils.h" | |
| 8 #include "nsFrame.h" | |
| 9 #include "nsGkAtoms.h" | |
| 10 #include "nsLiteralString.h" | |
| 11 #include "nsSVGEffects.h" | |
| 12 #include "nsSVGFilters.h" | |
| 13 #include "mozilla/dom/SVGFEImageElement.h" | |
| 14 | |
| 15 using namespace mozilla; | |
| 16 using namespace mozilla::dom; | |
| 17 | |
| 18 typedef nsFrame SVGFEImageFrameBase; | |
| 19 | |
| 20 class SVGFEImageFrame : public SVGFEImageFrameBase | |
| 21 { | |
| 22 friend nsIFrame* | |
| 23 NS_NewSVGFEImageFrame(nsIPresShell* aPresShell, nsStyleContext* aContext); | |
| 24 protected: | |
| 25 SVGFEImageFrame(nsStyleContext* aContext) | |
| 26 : SVGFEImageFrameBase(aContext) | |
| 27 { | |
| 28 AddStateBits(NS_FRAME_SVG_LAYOUT | NS_FRAME_IS_NONDISPLAY); | |
| 29 } | |
| 30 | |
| 31 public: | |
| 32 NS_DECL_FRAMEARENA_HELPERS | |
| 33 | |
| 34 virtual void Init(nsIContent* aContent, | |
| 35 nsIFrame* aParent, | |
| 36 nsIFrame* aPrevInFlow) MOZ_OVERRIDE; | |
| 37 virtual void DestroyFrom(nsIFrame* aDestructRoot) MOZ_OVERRIDE; | |
| 38 | |
| 39 virtual bool IsFrameOfType(uint32_t aFlags) const MOZ_OVERRIDE | |
| 40 { | |
| 41 return SVGFEImageFrameBase::IsFrameOfType(aFlags & ~(nsIFrame::eSVG)); | |
| 42 } | |
| 43 | |
| 44 #ifdef DEBUG_FRAME_DUMP | |
| 45 virtual nsresult GetFrameName(nsAString& aResult) const MOZ_OVERRIDE | |
| 46 { | |
| 47 return MakeFrameName(NS_LITERAL_STRING("SVGFEImage"), aResult); | |
| 48 } | |
| 49 #endif | |
| 50 | |
| 51 /** | |
| 52 * Get the "type" of the frame | |
| 53 * | |
| 54 * @see nsGkAtoms::svgFEImageFrame | |
| 55 */ | |
| 56 virtual nsIAtom* GetType() const MOZ_OVERRIDE; | |
| 57 | |
| 58 virtual nsresult AttributeChanged(int32_t aNameSpaceID, | |
| 59 nsIAtom* aAttribute, | |
| 60 int32_t aModType) MOZ_OVERRIDE; | |
| 61 | |
| 62 virtual bool UpdateOverflow() MOZ_OVERRIDE { | |
| 63 // We don't maintain a visual overflow rect | |
| 64 return false; | |
| 65 } | |
| 66 }; | |
| 67 | |
| 68 nsIFrame* | |
| 69 NS_NewSVGFEImageFrame(nsIPresShell* aPresShell, nsStyleContext* aContext) | |
| 70 { | |
| 71 return new (aPresShell) SVGFEImageFrame(aContext); | |
| 72 } | |
| 73 | |
| 74 NS_IMPL_FRAMEARENA_HELPERS(SVGFEImageFrame) | |
| 75 | |
| 76 /* virtual */ void | |
| 77 SVGFEImageFrame::DestroyFrom(nsIFrame* aDestructRoot) | |
| 78 { | |
| 79 nsCOMPtr<nsIImageLoadingContent> imageLoader = | |
| 80 do_QueryInterface(SVGFEImageFrameBase::mContent); | |
| 81 | |
| 82 if (imageLoader) { | |
| 83 imageLoader->FrameDestroyed(this); | |
| 84 imageLoader->DecrementVisibleCount(); | |
| 85 } | |
| 86 | |
| 87 SVGFEImageFrameBase::DestroyFrom(aDestructRoot); | |
| 88 } | |
| 89 | |
| 90 void | |
| 91 SVGFEImageFrame::Init(nsIContent* aContent, | |
| 92 nsIFrame* aParent, | |
| 93 nsIFrame* aPrevInFlow) | |
| 94 { | |
| 95 NS_ASSERTION(aContent->IsSVG(nsGkAtoms::feImage), | |
| 96 "Trying to construct an SVGFEImageFrame for a " | |
| 97 "content element that doesn't support the right interfaces"); | |
| 98 | |
| 99 SVGFEImageFrameBase::Init(aContent, aParent, aPrevInFlow); | |
| 100 nsCOMPtr<nsIImageLoadingContent> imageLoader = | |
| 101 do_QueryInterface(SVGFEImageFrameBase::mContent); | |
| 102 | |
| 103 if (imageLoader) { | |
| 104 // We assume that feImage's are always visible. | |
| 105 // Increment the visible count before calling FrameCreated so that | |
| 106 // FrameCreated will actually track the image correctly. | |
| 107 imageLoader->IncrementVisibleCount(); | |
| 108 imageLoader->FrameCreated(this); | |
| 109 } | |
| 110 } | |
| 111 | |
| 112 nsIAtom * | |
| 113 SVGFEImageFrame::GetType() const | |
| 114 { | |
| 115 return nsGkAtoms::svgFEImageFrame; | |
| 116 } | |
| 117 | |
| 118 nsresult | |
| 119 SVGFEImageFrame::AttributeChanged(int32_t aNameSpaceID, | |
| 120 nsIAtom* aAttribute, | |
| 121 int32_t aModType) | |
| 122 { | |
| 123 SVGFEImageElement *element = static_cast<SVGFEImageElement*>(mContent); | |
| 124 if (element->AttributeAffectsRendering(aNameSpaceID, aAttribute)) { | |
| 125 nsSVGEffects::InvalidateRenderingObservers(this); | |
| 126 } | |
| 127 if (aNameSpaceID == kNameSpaceID_XLink && | |
| 128 aAttribute == nsGkAtoms::href) { | |
| 129 | |
| 130 // Prevent setting image.src by exiting early | |
| 131 if (nsContentUtils::IsImageSrcSetDisabled()) { | |
| 132 return NS_OK; | |
| 133 } | |
| 134 | |
| 135 if (element->mStringAttributes[SVGFEImageElement::HREF].IsExplicitlySet()) { | |
| 136 element->LoadSVGImage(true, true); | |
| 137 } else { | |
| 138 element->CancelImageRequests(true); | |
| 139 } | |
| 140 } | |
| 141 | |
| 142 return SVGFEImageFrameBase::AttributeChanged(aNameSpaceID, | |
| 143 aAttribute, aModType); | |
| 144 } |
