/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ // Keep in (case-insensitive) order: #include "nsContainerFrame.h" #include "nsFrame.h" #include "nsGkAtoms.h" #include "nsSVGEffects.h" #include "nsSVGFilters.h" /* * This frame is used by filter primitive elements that don't * have special child elements that provide parameters. */ class SVGFELeafFrame : public nsFrame { friend nsIFrame* NS_NewSVGFELeafFrame(nsIPresShell* aPresShell, nsStyleContext* aContext); protected: explicit SVGFELeafFrame(nsStyleContext* aContext) : nsFrame(aContext) { AddStateBits(NS_FRAME_SVG_LAYOUT | NS_FRAME_IS_NONDISPLAY); } public: NS_DECL_FRAMEARENA_HELPERS #ifdef DEBUG virtual void Init(nsIContent* aContent, nsContainerFrame* aParent, nsIFrame* aPrevInFlow) override; #endif virtual bool IsFrameOfType(uint32_t aFlags) const override { return nsFrame::IsFrameOfType(aFlags & ~(nsIFrame::eSVG)); } #ifdef DEBUG_FRAME_DUMP virtual nsresult GetFrameName(nsAString& aResult) const override { return MakeFrameName(NS_LITERAL_STRING("SVGFELeaf"), aResult); } #endif /** * Get the "type" of the frame * * @see nsGkAtoms::svgFELeafFrame */ virtual nsIAtom* GetType() const override; virtual nsresult AttributeChanged(int32_t aNameSpaceID, nsIAtom* aAttribute, int32_t aModType) override; virtual bool ComputeCustomOverflow(nsOverflowAreas& aOverflowAreas) override { // We don't maintain a visual overflow rect return false; } }; nsIFrame* NS_NewSVGFELeafFrame(nsIPresShell* aPresShell, nsStyleContext* aContext) { return new (aPresShell) SVGFELeafFrame(aContext); } NS_IMPL_FRAMEARENA_HELPERS(SVGFELeafFrame) #ifdef DEBUG void SVGFELeafFrame::Init(nsIContent* aContent, nsContainerFrame* aParent, nsIFrame* aPrevInFlow) { NS_ASSERTION(aContent->IsNodeOfType(nsINode::eFILTER), "Trying to construct an SVGFELeafFrame for a " "content element that doesn't support the right interfaces"); nsFrame::Init(aContent, aParent, aPrevInFlow); } #endif /* DEBUG */ nsIAtom * SVGFELeafFrame::GetType() const { return nsGkAtoms::svgFELeafFrame; } nsresult SVGFELeafFrame::AttributeChanged(int32_t aNameSpaceID, nsIAtom* aAttribute, int32_t aModType) { nsSVGFE *element = static_cast<nsSVGFE*>(mContent); if (element->AttributeAffectsRendering(aNameSpaceID, aAttribute)) { MOZ_ASSERT(GetParent()->GetType() == nsGkAtoms::svgFilterFrame, "Observers observe the filter, so that's what we must invalidate"); nsSVGEffects::InvalidateDirectRenderingObservers(GetParent()); } return nsFrame::AttributeChanged(aNameSpaceID, aAttribute, aModType); }