michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: // Keep in (case-insensitive) order:
michael@0: #include "nsFrame.h"
michael@0: #include "nsGkAtoms.h"
michael@0: #include "nsSVGEffects.h"
michael@0: #include "nsSVGFilters.h"
michael@0: 
michael@0: typedef nsFrame SVGFELeafFrameBase;
michael@0: 
michael@0: /*
michael@0:  * This frame is used by filter primitive elements that don't
michael@0:  * have special child elements that provide parameters.
michael@0:  */
michael@0: class SVGFELeafFrame : public SVGFELeafFrameBase
michael@0: {
michael@0:   friend nsIFrame*
michael@0:   NS_NewSVGFELeafFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
michael@0: protected:
michael@0:   SVGFELeafFrame(nsStyleContext* aContext)
michael@0:     : SVGFELeafFrameBase(aContext)
michael@0:   {
michael@0:     AddStateBits(NS_FRAME_SVG_LAYOUT | NS_FRAME_IS_NONDISPLAY);
michael@0:   }
michael@0: 
michael@0: public:
michael@0:   NS_DECL_FRAMEARENA_HELPERS
michael@0: 
michael@0: #ifdef DEBUG
michael@0:   virtual void Init(nsIContent* aContent,
michael@0:                     nsIFrame*   aParent,
michael@0:                     nsIFrame*   aPrevInFlow) MOZ_OVERRIDE;
michael@0: #endif
michael@0: 
michael@0:   virtual bool IsFrameOfType(uint32_t aFlags) const MOZ_OVERRIDE
michael@0:   {
michael@0:     return SVGFELeafFrameBase::IsFrameOfType(aFlags & ~(nsIFrame::eSVG));
michael@0:   }
michael@0: 
michael@0: #ifdef DEBUG_FRAME_DUMP
michael@0:   virtual nsresult GetFrameName(nsAString& aResult) const MOZ_OVERRIDE
michael@0:   {
michael@0:     return MakeFrameName(NS_LITERAL_STRING("SVGFELeaf"), aResult);
michael@0:   }
michael@0: #endif
michael@0: 
michael@0:   /**
michael@0:    * Get the "type" of the frame
michael@0:    *
michael@0:    * @see nsGkAtoms::svgFELeafFrame
michael@0:    */
michael@0:   virtual nsIAtom* GetType() const MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual nsresult AttributeChanged(int32_t  aNameSpaceID,
michael@0:                                     nsIAtom* aAttribute,
michael@0:                                     int32_t  aModType) MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual bool UpdateOverflow() MOZ_OVERRIDE {
michael@0:     // We don't maintain a visual overflow rect
michael@0:     return false;
michael@0:   }
michael@0: };
michael@0: 
michael@0: nsIFrame*
michael@0: NS_NewSVGFELeafFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
michael@0: {
michael@0:   return new (aPresShell) SVGFELeafFrame(aContext);
michael@0: }
michael@0: 
michael@0: NS_IMPL_FRAMEARENA_HELPERS(SVGFELeafFrame)
michael@0: 
michael@0: #ifdef DEBUG
michael@0: void
michael@0: SVGFELeafFrame::Init(nsIContent* aContent,
michael@0:                      nsIFrame* aParent,
michael@0:                      nsIFrame* aPrevInFlow)
michael@0: {
michael@0:   NS_ASSERTION(aContent->IsNodeOfType(nsINode::eFILTER),
michael@0:                "Trying to construct an SVGFELeafFrame for a "
michael@0:                "content element that doesn't support the right interfaces");
michael@0: 
michael@0:   SVGFELeafFrameBase::Init(aContent, aParent, aPrevInFlow);
michael@0: }
michael@0: #endif /* DEBUG */
michael@0: 
michael@0: nsIAtom *
michael@0: SVGFELeafFrame::GetType() const
michael@0: {
michael@0:   return nsGkAtoms::svgFELeafFrame;
michael@0: }
michael@0: 
michael@0: nsresult
michael@0: SVGFELeafFrame::AttributeChanged(int32_t  aNameSpaceID,
michael@0:                                  nsIAtom* aAttribute,
michael@0:                                  int32_t  aModType)
michael@0: {
michael@0:   nsSVGFE *element = static_cast<nsSVGFE*>(mContent);
michael@0:   if (element->AttributeAffectsRendering(aNameSpaceID, aAttribute)) {
michael@0:     nsSVGEffects::InvalidateRenderingObservers(this);
michael@0:   }
michael@0: 
michael@0:   return SVGFELeafFrameBase::AttributeChanged(aNameSpaceID,
michael@0:                                                 aAttribute, aModType);
michael@0: }