1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/layout/svg/nsSVGStopFrame.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,115 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +// Keep in (case-insensitive) order:
1.10 +#include "nsFrame.h"
1.11 +#include "nsGkAtoms.h"
1.12 +#include "nsStyleContext.h"
1.13 +#include "nsSVGEffects.h"
1.14 +
1.15 +// This is a very simple frame whose only purpose is to capture style change
1.16 +// events and propagate them to the parent. Most of the heavy lifting is done
1.17 +// within the nsSVGGradientFrame, which is the parent for this frame
1.18 +
1.19 +typedef nsFrame nsSVGStopFrameBase;
1.20 +
1.21 +class nsSVGStopFrame : public nsSVGStopFrameBase
1.22 +{
1.23 + friend nsIFrame*
1.24 + NS_NewSVGStopFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
1.25 +protected:
1.26 + nsSVGStopFrame(nsStyleContext* aContext)
1.27 + : nsSVGStopFrameBase(aContext)
1.28 + {
1.29 + AddStateBits(NS_FRAME_IS_NONDISPLAY);
1.30 + }
1.31 +
1.32 +public:
1.33 + NS_DECL_FRAMEARENA_HELPERS
1.34 +
1.35 + // nsIFrame interface:
1.36 +#ifdef DEBUG
1.37 + virtual void Init(nsIContent* aContent,
1.38 + nsIFrame* aParent,
1.39 + nsIFrame* aPrevInFlow) MOZ_OVERRIDE;
1.40 +#endif
1.41 +
1.42 + void BuildDisplayList(nsDisplayListBuilder* aBuilder,
1.43 + const nsRect& aDirtyRect,
1.44 + const nsDisplayListSet& aLists) MOZ_OVERRIDE {}
1.45 +
1.46 + virtual nsresult AttributeChanged(int32_t aNameSpaceID,
1.47 + nsIAtom* aAttribute,
1.48 + int32_t aModType) MOZ_OVERRIDE;
1.49 +
1.50 + /**
1.51 + * Get the "type" of the frame
1.52 + *
1.53 + * @see nsGkAtoms::svgStopFrame
1.54 + */
1.55 + virtual nsIAtom* GetType() const MOZ_OVERRIDE;
1.56 +
1.57 + virtual bool IsFrameOfType(uint32_t aFlags) const MOZ_OVERRIDE
1.58 + {
1.59 + return nsSVGStopFrameBase::IsFrameOfType(aFlags & ~(nsIFrame::eSVG));
1.60 + }
1.61 +
1.62 +#ifdef DEBUG_FRAME_DUMP
1.63 + virtual nsresult GetFrameName(nsAString& aResult) const MOZ_OVERRIDE
1.64 + {
1.65 + return MakeFrameName(NS_LITERAL_STRING("SVGStop"), aResult);
1.66 + }
1.67 +#endif
1.68 +};
1.69 +
1.70 +//----------------------------------------------------------------------
1.71 +// Implementation
1.72 +
1.73 +NS_IMPL_FRAMEARENA_HELPERS(nsSVGStopFrame)
1.74 +
1.75 +//----------------------------------------------------------------------
1.76 +// nsIFrame methods:
1.77 +
1.78 +#ifdef DEBUG
1.79 +void
1.80 +nsSVGStopFrame::Init(nsIContent* aContent,
1.81 + nsIFrame* aParent,
1.82 + nsIFrame* aPrevInFlow)
1.83 +{
1.84 + NS_ASSERTION(aContent->IsSVG(nsGkAtoms::stop), "Content is not a stop element");
1.85 +
1.86 + nsSVGStopFrameBase::Init(aContent, aParent, aPrevInFlow);
1.87 +}
1.88 +#endif /* DEBUG */
1.89 +
1.90 +nsIAtom *
1.91 +nsSVGStopFrame::GetType() const
1.92 +{
1.93 + return nsGkAtoms::svgStopFrame;
1.94 +}
1.95 +
1.96 +nsresult
1.97 +nsSVGStopFrame::AttributeChanged(int32_t aNameSpaceID,
1.98 + nsIAtom* aAttribute,
1.99 + int32_t aModType)
1.100 +{
1.101 + if (aNameSpaceID == kNameSpaceID_None &&
1.102 + aAttribute == nsGkAtoms::offset) {
1.103 + nsSVGEffects::InvalidateRenderingObservers(this);
1.104 + }
1.105 +
1.106 + return nsSVGStopFrameBase::AttributeChanged(aNameSpaceID,
1.107 + aAttribute, aModType);
1.108 +}
1.109 +
1.110 +// -------------------------------------------------------------------------
1.111 +// Public functions
1.112 +// -------------------------------------------------------------------------
1.113 +
1.114 +nsIFrame* NS_NewSVGStopFrame(nsIPresShell* aPresShell,
1.115 + nsStyleContext* aContext)
1.116 +{
1.117 + return new (aPresShell) nsSVGStopFrame(aContext);
1.118 +}
