The Tor Browser / file comparison
comparison: layout/svg/nsSVGGFrame.cpp
layout/svg/nsSVGGFrame.cpp
- branch
- TOR_BUG_9701
- changeset 8
- 97036ab72558
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| -1:000000000000 | 0:3e497266f714 |
|---|---|
| 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 // Main header first: | |
| 7 #include "nsSVGGFrame.h" | |
| 8 | |
| 9 // Keep others in (case-insensitive) order: | |
| 10 #include "nsGkAtoms.h" | |
| 11 #include "SVGTransformableElement.h" | |
| 12 #include "nsIFrame.h" | |
| 13 #include "SVGGraphicsElement.h" | |
| 14 #include "nsSVGIntegrationUtils.h" | |
| 15 #include "nsSVGUtils.h" | |
| 16 | |
| 17 using namespace mozilla::dom; | |
| 18 | |
| 19 //---------------------------------------------------------------------- | |
| 20 // Implementation | |
| 21 | |
| 22 nsIFrame* | |
| 23 NS_NewSVGGFrame(nsIPresShell* aPresShell, nsStyleContext* aContext) | |
| 24 { | |
| 25 return new (aPresShell) nsSVGGFrame(aContext); | |
| 26 } | |
| 27 | |
| 28 NS_IMPL_FRAMEARENA_HELPERS(nsSVGGFrame) | |
| 29 | |
| 30 #ifdef DEBUG | |
| 31 void | |
| 32 nsSVGGFrame::Init(nsIContent* aContent, | |
| 33 nsIFrame* aParent, | |
| 34 nsIFrame* aPrevInFlow) | |
| 35 { | |
| 36 NS_ASSERTION(aContent->IsSVG() && | |
| 37 static_cast<nsSVGElement*>(aContent)->IsTransformable(), | |
| 38 "The element doesn't support nsIDOMSVGTransformable"); | |
| 39 | |
| 40 nsSVGGFrameBase::Init(aContent, aParent, aPrevInFlow); | |
| 41 } | |
| 42 #endif /* DEBUG */ | |
| 43 | |
| 44 nsIAtom * | |
| 45 nsSVGGFrame::GetType() const | |
| 46 { | |
| 47 return nsGkAtoms::svgGFrame; | |
| 48 } | |
| 49 | |
| 50 //---------------------------------------------------------------------- | |
| 51 // nsISVGChildFrame methods | |
| 52 | |
| 53 void | |
| 54 nsSVGGFrame::NotifySVGChanged(uint32_t aFlags) | |
| 55 { | |
| 56 NS_ABORT_IF_FALSE(aFlags & (TRANSFORM_CHANGED | COORD_CONTEXT_CHANGED), | |
| 57 "Invalidation logic may need adjusting"); | |
| 58 | |
| 59 if (aFlags & TRANSFORM_CHANGED) { | |
| 60 // make sure our cached transform matrix gets (lazily) updated | |
| 61 mCanvasTM = nullptr; | |
| 62 } | |
| 63 | |
| 64 nsSVGGFrameBase::NotifySVGChanged(aFlags); | |
| 65 } | |
| 66 | |
| 67 gfxMatrix | |
| 68 nsSVGGFrame::GetCanvasTM(uint32_t aFor, nsIFrame* aTransformRoot) | |
| 69 { | |
| 70 if (!(GetStateBits() & NS_FRAME_IS_NONDISPLAY) && !aTransformRoot) { | |
| 71 if ((aFor == FOR_PAINTING && NS_SVGDisplayListPaintingEnabled()) || | |
| 72 (aFor == FOR_HIT_TESTING && NS_SVGDisplayListHitTestingEnabled())) { | |
| 73 return nsSVGIntegrationUtils::GetCSSPxToDevPxMatrix(this); | |
| 74 } | |
| 75 } | |
| 76 if (!mCanvasTM) { | |
| 77 NS_ASSERTION(mParent, "null parent"); | |
| 78 | |
| 79 nsSVGContainerFrame *parent = static_cast<nsSVGContainerFrame*>(mParent); | |
| 80 SVGGraphicsElement *content = static_cast<SVGGraphicsElement*>(mContent); | |
| 81 gfxMatrix tm = content->PrependLocalTransformsTo( | |
| 82 this == aTransformRoot ? gfxMatrix() : | |
| 83 parent->GetCanvasTM(aFor, aTransformRoot)); | |
| 84 | |
| 85 mCanvasTM = new gfxMatrix(tm); | |
| 86 } | |
| 87 return *mCanvasTM; | |
| 88 } | |
| 89 | |
| 90 nsresult | |
| 91 nsSVGGFrame::AttributeChanged(int32_t aNameSpaceID, | |
| 92 nsIAtom* aAttribute, | |
| 93 int32_t aModType) | |
| 94 { | |
| 95 if (aNameSpaceID == kNameSpaceID_None && | |
| 96 aAttribute == nsGkAtoms::transform) { | |
| 97 // We don't invalidate for transform changes (the layers code does that). | |
| 98 // Also note that SVGTransformableElement::GetAttributeChangeHint will | |
| 99 // return nsChangeHint_UpdateOverflow for "transform" attribute changes | |
| 100 // and cause DoApplyRenderingChangeToTree to make the SchedulePaint call. | |
| 101 NotifySVGChanged(TRANSFORM_CHANGED); | |
| 102 } | |
| 103 | |
| 104 return NS_OK; | |
| 105 } |
