/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* vim: set ts=8 sts=2 et sw=2 tw=80: */ /* 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 "mozilla/PresShell.h" #include "mozilla/SVGObserverUtils.h" #include "mozilla/dom/SVGFilters.h" #include "nsContainerFrame.h" #include "nsGkAtoms.h" #include "nsIFrame.h" #include "nsLiteralString.h" using namespace mozilla::dom; nsIFrame* NS_NewSVGFEContainerFrame(mozilla::PresShell* aPresShell, mozilla::ComputedStyle* aStyle); namespace mozilla { /* * This frame is used by filter primitive elements that * have special child elements that provide parameters. */ class SVGFEContainerFrame final : public nsContainerFrame { friend nsIFrame* ::NS_NewSVGFEContainerFrame(mozilla::PresShell* aPresShell, ComputedStyle* aStyle); protected: explicit SVGFEContainerFrame(ComputedStyle* aStyle, nsPresContext* aPresContext) : nsContainerFrame(aStyle, aPresContext, kClassID) { AddStateBits(NS_FRAME_SVG_LAYOUT | NS_FRAME_IS_NONDISPLAY); } public: NS_DECL_FRAMEARENA_HELPERS(SVGFEContainerFrame) #ifdef DEBUG_FRAME_DUMP nsresult GetFrameName(nsAString& aResult) const override { return MakeFrameName(u"SVGFEContainer"_ns, aResult); } #endif #ifdef DEBUG void Init(nsIContent* aContent, nsContainerFrame* aParent, nsIFrame* aPrevInFlow) override; #endif nsresult AttributeChanged(int32_t aNameSpaceID, nsAtom* aAttribute, int32_t aModType) override; bool ComputeCustomOverflow(OverflowAreas& aOverflowAreas) override { // We don't maintain a ink overflow rect return false; } }; } // namespace mozilla nsIFrame* NS_NewSVGFEContainerFrame(mozilla::PresShell* aPresShell, mozilla::ComputedStyle* aStyle) { return new (aPresShell) mozilla::SVGFEContainerFrame(aStyle, aPresShell->GetPresContext()); } namespace mozilla { NS_IMPL_FRAMEARENA_HELPERS(SVGFEContainerFrame) #ifdef DEBUG void SVGFEContainerFrame::Init(nsIContent* aContent, nsContainerFrame* aParent, nsIFrame* aPrevInFlow) { NS_ASSERTION(aContent->IsSVGFilterPrimitiveElement(), "Trying to construct an SVGFEContainerFrame for a " "content element that doesn't support the right interfaces"); nsContainerFrame::Init(aContent, aParent, aPrevInFlow); } #endif /* DEBUG */ nsresult SVGFEContainerFrame::AttributeChanged(int32_t aNameSpaceID, nsAtom* aAttribute, int32_t aModType) { dom::SVGFilterPrimitiveElement* element = static_cast<dom::SVGFilterPrimitiveElement*>(GetContent()); if (element->AttributeAffectsRendering(aNameSpaceID, aAttribute)) { MOZ_ASSERT( GetParent()->IsSVGFilterFrame(), "Observers observe the filter, so that's what we must invalidate"); SVGObserverUtils::InvalidateRenderingObservers(GetParent()); } return nsContainerFrame::AttributeChanged(aNameSpaceID, aAttribute, aModType); } } // namespace mozilla