зеркало из https://github.com/mozilla/gecko-dev.git
93 строки
3.1 KiB
C++
93 строки
3.1 KiB
C++
/* -*- 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 "ComputedStyle.h"
|
|
#include "mozilla/PresShell.h"
|
|
#include "nsContainerFrame.h"
|
|
#include "nsFrame.h"
|
|
#include "nsGkAtoms.h"
|
|
#include "SVGObserverUtils.h"
|
|
#include "SVGFilters.h"
|
|
|
|
using namespace mozilla;
|
|
|
|
/*
|
|
* This frame is used by filter primitive elements that don't
|
|
* have special child elements that provide parameters.
|
|
*/
|
|
class SVGFELeafFrame final : public nsFrame {
|
|
friend nsIFrame* NS_NewSVGFELeafFrame(mozilla::PresShell* aPresShell,
|
|
ComputedStyle* aStyle);
|
|
|
|
protected:
|
|
explicit SVGFELeafFrame(ComputedStyle* aStyle, nsPresContext* aPresContext)
|
|
: nsFrame(aStyle, aPresContext, kClassID) {
|
|
AddStateBits(NS_FRAME_SVG_LAYOUT | NS_FRAME_IS_NONDISPLAY);
|
|
}
|
|
|
|
public:
|
|
NS_DECL_FRAMEARENA_HELPERS(SVGFELeafFrame)
|
|
|
|
#ifdef DEBUG
|
|
virtual void Init(nsIContent* aContent, nsContainerFrame* aParent,
|
|
nsIFrame* aPrevInFlow) override;
|
|
#endif
|
|
|
|
virtual bool IsFrameOfType(uint32_t aFlags) const override {
|
|
if (aFlags & eSupportsContainLayoutAndPaint) {
|
|
return false;
|
|
}
|
|
|
|
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
|
|
|
|
virtual nsresult AttributeChanged(int32_t aNameSpaceID, nsAtom* aAttribute,
|
|
int32_t aModType) override;
|
|
|
|
virtual bool ComputeCustomOverflow(nsOverflowAreas& aOverflowAreas) override {
|
|
// We don't maintain a visual overflow rect
|
|
return false;
|
|
}
|
|
};
|
|
|
|
nsIFrame* NS_NewSVGFELeafFrame(PresShell* aPresShell, ComputedStyle* aStyle) {
|
|
return new (aPresShell) SVGFELeafFrame(aStyle, aPresShell->GetPresContext());
|
|
}
|
|
|
|
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 */
|
|
|
|
nsresult SVGFELeafFrame::AttributeChanged(int32_t aNameSpaceID,
|
|
nsAtom* aAttribute,
|
|
int32_t aModType) {
|
|
auto* element = static_cast<mozilla::dom::SVGFE*>(GetContent());
|
|
if (element->AttributeAffectsRendering(aNameSpaceID, aAttribute)) {
|
|
MOZ_ASSERT(
|
|
GetParent()->IsSVGFilterFrame(),
|
|
"Observers observe the filter, so that's what we must invalidate");
|
|
SVGObserverUtils::InvalidateDirectRenderingObservers(GetParent());
|
|
}
|
|
|
|
return nsFrame::AttributeChanged(aNameSpaceID, aAttribute, aModType);
|
|
}
|