forked from mirrors/gecko-dev
5730ee0ca5
Extend the per-frame-class bit we have to devirtualize IsLeaf to also devirtualize IsFrameOfType. That is, move this data to FrameClasses.py. This was done by going through all the frame classes, trying to preserve behavior. The only quirky thing is that I had to add two more trivial frame classes, `nsAudioFrame` for audio elements, and `nsFloatingFirstLetterFrame`. That's because these frame classes were returning different answers at runtime, but they do this only on conditions that trigger frame reconstruction (floating, and being an audio element, respectively). Differential Revision: https://phabricator.services.mozilla.com/D194703
97 lines
3.4 KiB
C++
97 lines
3.4 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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// Keep in (case-insensitive) order:
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#include "nsContainerFrame.h"
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#include "nsIFrame.h"
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#include "nsGkAtoms.h"
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#include "mozilla/ComputedStyle.h"
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#include "mozilla/PresShell.h"
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#include "mozilla/SVGGradientFrame.h"
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#include "mozilla/SVGObserverUtils.h"
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// This is a very simple frame whose only purpose is to capture style change
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// events and propagate them to the parent. Most of the heavy lifting is done
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// within the SVGGradientFrame, which is the parent for this frame
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nsIFrame* NS_NewSVGStopFrame(mozilla::PresShell* aPresShell,
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mozilla::ComputedStyle* aStyle);
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namespace mozilla {
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class SVGStopFrame : public nsIFrame {
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friend nsIFrame* ::NS_NewSVGStopFrame(mozilla::PresShell* aPresShell,
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ComputedStyle* aStyle);
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protected:
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explicit SVGStopFrame(ComputedStyle* aStyle, nsPresContext* aPresContext)
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: nsIFrame(aStyle, aPresContext, kClassID) {
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AddStateBits(NS_FRAME_SVG_LAYOUT | NS_FRAME_IS_NONDISPLAY);
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}
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public:
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NS_DECL_FRAMEARENA_HELPERS(SVGStopFrame)
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// nsIFrame interface:
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#ifdef DEBUG
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void Init(nsIContent* aContent, nsContainerFrame* aParent,
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nsIFrame* aPrevInFlow) override;
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#endif
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void BuildDisplayList(nsDisplayListBuilder* aBuilder,
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const nsDisplayListSet& aLists) override {}
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nsresult AttributeChanged(int32_t aNameSpaceID, nsAtom* aAttribute,
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int32_t aModType) override;
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#ifdef DEBUG_FRAME_DUMP
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nsresult GetFrameName(nsAString& aResult) const override {
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return MakeFrameName(u"SVGStop"_ns, aResult);
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}
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#endif
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};
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//----------------------------------------------------------------------
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// Implementation
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NS_IMPL_FRAMEARENA_HELPERS(SVGStopFrame)
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//----------------------------------------------------------------------
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// nsIFrame methods:
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#ifdef DEBUG
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void SVGStopFrame::Init(nsIContent* aContent, nsContainerFrame* aParent,
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nsIFrame* aPrevInFlow) {
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NS_ASSERTION(aContent->IsSVGElement(nsGkAtoms::stop),
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"Content is not a stop element");
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nsIFrame::Init(aContent, aParent, aPrevInFlow);
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}
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#endif /* DEBUG */
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nsresult SVGStopFrame::AttributeChanged(int32_t aNameSpaceID,
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nsAtom* aAttribute, int32_t aModType) {
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if (aNameSpaceID == kNameSpaceID_None && aAttribute == nsGkAtoms::offset) {
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MOZ_ASSERT(
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static_cast<SVGGradientFrame*>(do_QueryFrame(GetParent())),
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"Observers observe the gradient, so that's what we must invalidate");
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SVGObserverUtils::InvalidateRenderingObservers(GetParent());
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}
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return nsIFrame::AttributeChanged(aNameSpaceID, aAttribute, aModType);
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}
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} // namespace mozilla
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// -------------------------------------------------------------------------
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// Public functions
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// -------------------------------------------------------------------------
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nsIFrame* NS_NewSVGStopFrame(mozilla::PresShell* aPresShell,
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mozilla::ComputedStyle* aStyle) {
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return new (aPresShell)
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mozilla::SVGStopFrame(aStyle, aPresShell->GetPresContext());
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}
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