gecko/layout/svg/nsSVGUseFrame.cpp
Alexandre Dumont d7aab8168c Bug 596753: Flatten layout/svg/base/src into layout/svg. r=dholbert
--HG--
rename : layout/svg/base/src/Makefile.in => layout/svg/Makefile.in
rename : layout/svg/base/src/SVGFEContainerFrame.cpp => layout/svg/SVGFEContainerFrame.cpp
rename : layout/svg/base/src/SVGFEImageFrame.cpp => layout/svg/SVGFEImageFrame.cpp
rename : layout/svg/base/src/SVGFELeafFrame.cpp => layout/svg/SVGFELeafFrame.cpp
rename : layout/svg/base/src/SVGFEUnstyledLeafFrame.cpp => layout/svg/SVGFEUnstyledLeafFrame.cpp
rename : layout/svg/base/src/SVGViewFrame.cpp => layout/svg/SVGViewFrame.cpp
rename : layout/svg/base/src/nsISVGChildFrame.h => layout/svg/nsISVGChildFrame.h
rename : layout/svg/base/src/nsISVGGlyphFragmentNode.h => layout/svg/nsISVGGlyphFragmentNode.h
rename : layout/svg/base/src/nsISVGSVGFrame.h => layout/svg/nsISVGSVGFrame.h
rename : layout/svg/base/src/nsSVGAFrame.cpp => layout/svg/nsSVGAFrame.cpp
rename : layout/svg/base/src/nsSVGClipPathFrame.cpp => layout/svg/nsSVGClipPathFrame.cpp
rename : layout/svg/base/src/nsSVGClipPathFrame.h => layout/svg/nsSVGClipPathFrame.h
rename : layout/svg/base/src/nsSVGContainerFrame.cpp => layout/svg/nsSVGContainerFrame.cpp
rename : layout/svg/base/src/nsSVGContainerFrame.h => layout/svg/nsSVGContainerFrame.h
rename : layout/svg/base/src/nsSVGEffects.cpp => layout/svg/nsSVGEffects.cpp
rename : layout/svg/base/src/nsSVGEffects.h => layout/svg/nsSVGEffects.h
rename : layout/svg/base/src/nsSVGFilterFrame.cpp => layout/svg/nsSVGFilterFrame.cpp
rename : layout/svg/base/src/nsSVGFilterFrame.h => layout/svg/nsSVGFilterFrame.h
rename : layout/svg/base/src/nsSVGFilterInstance.cpp => layout/svg/nsSVGFilterInstance.cpp
rename : layout/svg/base/src/nsSVGFilterInstance.h => layout/svg/nsSVGFilterInstance.h
rename : layout/svg/base/src/nsSVGFilterPaintCallback.h => layout/svg/nsSVGFilterPaintCallback.h
rename : layout/svg/base/src/nsSVGForeignObjectFrame.cpp => layout/svg/nsSVGForeignObjectFrame.cpp
rename : layout/svg/base/src/nsSVGForeignObjectFrame.h => layout/svg/nsSVGForeignObjectFrame.h
rename : layout/svg/base/src/nsSVGGFrame.cpp => layout/svg/nsSVGGFrame.cpp
rename : layout/svg/base/src/nsSVGGFrame.h => layout/svg/nsSVGGFrame.h
rename : layout/svg/base/src/nsSVGGenericContainerFrame.cpp => layout/svg/nsSVGGenericContainerFrame.cpp
rename : layout/svg/base/src/nsSVGGenericContainerFrame.h => layout/svg/nsSVGGenericContainerFrame.h
rename : layout/svg/base/src/nsSVGGeometryFrame.cpp => layout/svg/nsSVGGeometryFrame.cpp
rename : layout/svg/base/src/nsSVGGeometryFrame.h => layout/svg/nsSVGGeometryFrame.h
rename : layout/svg/base/src/nsSVGGlyphFrame.cpp => layout/svg/nsSVGGlyphFrame.cpp
rename : layout/svg/base/src/nsSVGGlyphFrame.h => layout/svg/nsSVGGlyphFrame.h
rename : layout/svg/base/src/nsSVGGradientFrame.cpp => layout/svg/nsSVGGradientFrame.cpp
rename : layout/svg/base/src/nsSVGGradientFrame.h => layout/svg/nsSVGGradientFrame.h
rename : layout/svg/base/src/nsSVGImageFrame.cpp => layout/svg/nsSVGImageFrame.cpp
rename : layout/svg/base/src/nsSVGInnerSVGFrame.cpp => layout/svg/nsSVGInnerSVGFrame.cpp
rename : layout/svg/base/src/nsSVGInnerSVGFrame.h => layout/svg/nsSVGInnerSVGFrame.h
rename : layout/svg/base/src/nsSVGIntegrationUtils.cpp => layout/svg/nsSVGIntegrationUtils.cpp
rename : layout/svg/base/src/nsSVGIntegrationUtils.h => layout/svg/nsSVGIntegrationUtils.h
rename : layout/svg/base/src/nsSVGMarkerFrame.cpp => layout/svg/nsSVGMarkerFrame.cpp
rename : layout/svg/base/src/nsSVGMarkerFrame.h => layout/svg/nsSVGMarkerFrame.h
rename : layout/svg/base/src/nsSVGMaskFrame.cpp => layout/svg/nsSVGMaskFrame.cpp
rename : layout/svg/base/src/nsSVGMaskFrame.h => layout/svg/nsSVGMaskFrame.h
rename : layout/svg/base/src/nsSVGOuterSVGFrame.cpp => layout/svg/nsSVGOuterSVGFrame.cpp
rename : layout/svg/base/src/nsSVGOuterSVGFrame.h => layout/svg/nsSVGOuterSVGFrame.h
rename : layout/svg/base/src/nsSVGPaintServerFrame.cpp => layout/svg/nsSVGPaintServerFrame.cpp
rename : layout/svg/base/src/nsSVGPaintServerFrame.h => layout/svg/nsSVGPaintServerFrame.h
rename : layout/svg/base/src/nsSVGPathGeometryFrame.cpp => layout/svg/nsSVGPathGeometryFrame.cpp
rename : layout/svg/base/src/nsSVGPathGeometryFrame.h => layout/svg/nsSVGPathGeometryFrame.h
rename : layout/svg/base/src/nsSVGPatternFrame.cpp => layout/svg/nsSVGPatternFrame.cpp
rename : layout/svg/base/src/nsSVGPatternFrame.h => layout/svg/nsSVGPatternFrame.h
rename : layout/svg/base/src/nsSVGStopFrame.cpp => layout/svg/nsSVGStopFrame.cpp
rename : layout/svg/base/src/nsSVGSwitchFrame.cpp => layout/svg/nsSVGSwitchFrame.cpp
rename : layout/svg/base/src/nsSVGTSpanFrame.cpp => layout/svg/nsSVGTSpanFrame.cpp
rename : layout/svg/base/src/nsSVGTSpanFrame.h => layout/svg/nsSVGTSpanFrame.h
rename : layout/svg/base/src/nsSVGTextContainerFrame.cpp => layout/svg/nsSVGTextContainerFrame.cpp
rename : layout/svg/base/src/nsSVGTextContainerFrame.h => layout/svg/nsSVGTextContainerFrame.h
rename : layout/svg/base/src/nsSVGTextFrame.cpp => layout/svg/nsSVGTextFrame.cpp
rename : layout/svg/base/src/nsSVGTextFrame.h => layout/svg/nsSVGTextFrame.h
rename : layout/svg/base/src/nsSVGTextPathFrame.cpp => layout/svg/nsSVGTextPathFrame.cpp
rename : layout/svg/base/src/nsSVGTextPathFrame.h => layout/svg/nsSVGTextPathFrame.h
rename : layout/svg/base/src/nsSVGUseFrame.cpp => layout/svg/nsSVGUseFrame.cpp
rename : layout/svg/base/src/nsSVGUtils.cpp => layout/svg/nsSVGUtils.cpp
rename : layout/svg/base/src/nsSVGUtils.h => layout/svg/nsSVGUtils.h
rename : layout/svg/base/src/resources/content/svgBindings.xml => layout/svg/resources/content/svgBindings.xml
rename : layout/svg/base/src/svg.css => layout/svg/svg.css
2012-09-24 23:01:21 +02:00

242 lines
7.4 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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 "nsIAnonymousContentCreator.h"
#include "nsIDOMSVGUseElement.h"
#include "nsSVGGFrame.h"
#include "nsSVGUseElement.h"
#include "nsContentList.h"
typedef nsSVGGFrame nsSVGUseFrameBase;
class nsSVGUseFrame : public nsSVGUseFrameBase,
public nsIAnonymousContentCreator
{
friend nsIFrame*
NS_NewSVGUseFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
protected:
nsSVGUseFrame(nsStyleContext* aContext) :
nsSVGUseFrameBase(aContext),
mHasValidDimensions(true)
{}
public:
NS_DECL_QUERYFRAME
NS_DECL_FRAMEARENA_HELPERS
// nsIFrame interface:
NS_IMETHOD Init(nsIContent* aContent,
nsIFrame* aParent,
nsIFrame* aPrevInFlow);
NS_IMETHOD AttributeChanged(int32_t aNameSpaceID,
nsIAtom* aAttribute,
int32_t aModType);
virtual void DestroyFrom(nsIFrame* aDestructRoot);
/**
* Get the "type" of the frame
*
* @see nsGkAtoms::svgUseFrame
*/
virtual nsIAtom* GetType() const;
virtual bool IsLeaf() const;
#ifdef DEBUG
NS_IMETHOD GetFrameName(nsAString& aResult) const
{
return MakeFrameName(NS_LITERAL_STRING("SVGUse"), aResult);
}
#endif
// nsISVGChildFrame interface:
virtual void ReflowSVG();
virtual void NotifySVGChanged(uint32_t aFlags);
// nsIAnonymousContentCreator
virtual nsresult CreateAnonymousContent(nsTArray<ContentInfo>& aElements);
virtual void AppendAnonymousContentTo(nsBaseContentList& aElements,
uint32_t aFilter);
private:
bool mHasValidDimensions;
};
//----------------------------------------------------------------------
// Implementation
nsIFrame*
NS_NewSVGUseFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
{
return new (aPresShell) nsSVGUseFrame(aContext);
}
NS_IMPL_FRAMEARENA_HELPERS(nsSVGUseFrame)
nsIAtom *
nsSVGUseFrame::GetType() const
{
return nsGkAtoms::svgUseFrame;
}
//----------------------------------------------------------------------
// nsQueryFrame methods
NS_QUERYFRAME_HEAD(nsSVGUseFrame)
NS_QUERYFRAME_ENTRY(nsIAnonymousContentCreator)
NS_QUERYFRAME_TAIL_INHERITING(nsSVGUseFrameBase)
//----------------------------------------------------------------------
// nsIFrame methods:
NS_IMETHODIMP
nsSVGUseFrame::Init(nsIContent* aContent,
nsIFrame* aParent,
nsIFrame* aPrevInFlow)
{
#ifdef DEBUG
nsCOMPtr<nsIDOMSVGUseElement> use = do_QueryInterface(aContent);
NS_ASSERTION(use, "Content is not an SVG use!");
#endif /* DEBUG */
mHasValidDimensions =
static_cast<nsSVGUseElement*>(aContent)->HasValidDimensions();
return nsSVGUseFrameBase::Init(aContent, aParent, aPrevInFlow);
}
NS_IMETHODIMP
nsSVGUseFrame::AttributeChanged(int32_t aNameSpaceID,
nsIAtom* aAttribute,
int32_t aModType)
{
nsSVGUseElement *useElement = static_cast<nsSVGUseElement*>(mContent);
if (aNameSpaceID == kNameSpaceID_None) {
if (aAttribute == nsGkAtoms::x ||
aAttribute == nsGkAtoms::y) {
// make sure our cached transform matrix gets (lazily) updated
mCanvasTM = nullptr;
nsSVGUtils::InvalidateAndScheduleReflowSVG(this);
nsSVGUtils::NotifyChildrenOfSVGChange(this, TRANSFORM_CHANGED);
} else if (aAttribute == nsGkAtoms::width ||
aAttribute == nsGkAtoms::height) {
bool invalidate = false;
if (mHasValidDimensions != useElement->HasValidDimensions()) {
mHasValidDimensions = !mHasValidDimensions;
invalidate = true;
}
if (useElement->OurWidthAndHeightAreUsed()) {
invalidate = true;
useElement->SyncWidthOrHeight(aAttribute);
}
if (invalidate) {
nsSVGUtils::InvalidateAndScheduleReflowSVG(this);
}
}
} else if (aNameSpaceID == kNameSpaceID_XLink &&
aAttribute == nsGkAtoms::href) {
// we're changing our nature, clear out the clone information
nsSVGUtils::InvalidateAndScheduleReflowSVG(this);
useElement->mOriginal = nullptr;
useElement->UnlinkSource();
useElement->TriggerReclone();
}
return nsSVGUseFrameBase::AttributeChanged(aNameSpaceID,
aAttribute, aModType);
}
void
nsSVGUseFrame::DestroyFrom(nsIFrame* aDestructRoot)
{
nsRefPtr<nsSVGUseElement> use = static_cast<nsSVGUseElement*>(mContent);
nsSVGUseFrameBase::DestroyFrom(aDestructRoot);
use->DestroyAnonymousContent();
}
bool
nsSVGUseFrame::IsLeaf() const
{
return true;
}
//----------------------------------------------------------------------
// nsISVGChildFrame methods
void
nsSVGUseFrame::ReflowSVG()
{
// We only handle x/y offset here, since any width/height that is in force is
// handled by the nsSVGOuterSVGFrame for the anonymous <svg> that will be
// created for that purpose.
float x, y;
static_cast<nsSVGUseElement*>(mContent)->
GetAnimatedLengthValues(&x, &y, nullptr);
mRect.MoveTo(nsLayoutUtils::RoundGfxRectToAppRect(
gfxRect(x, y, 0.0, 0.0),
PresContext()->AppUnitsPerCSSPixel()).TopLeft());
nsSVGUseFrameBase::ReflowSVG();
}
void
nsSVGUseFrame::NotifySVGChanged(uint32_t aFlags)
{
if (aFlags & COORD_CONTEXT_CHANGED &&
!(aFlags & TRANSFORM_CHANGED)) {
// Coordinate context changes affect mCanvasTM if we have a
// percentage 'x' or 'y'
nsSVGUseElement *use = static_cast<nsSVGUseElement*>(mContent);
if (use->mLengthAttributes[nsSVGUseElement::X].IsPercentage() ||
use->mLengthAttributes[nsSVGUseElement::Y].IsPercentage()) {
aFlags |= TRANSFORM_CHANGED;
// Ancestor changes can't affect how we render from the perspective of
// any rendering observers that we may have, so we don't need to
// invalidate them. We also don't need to invalidate ourself, since our
// changed ancestor will have invalidated its entire area, which includes
// our area.
// For perf reasons we call this before calling NotifySVGChanged() below.
nsSVGUtils::ScheduleReflowSVG(this);
}
}
// We don't remove the TRANSFORM_CHANGED flag here if we have a viewBox or
// non-percentage width/height, since if they're set then they are cloned to
// an anonymous child <svg>, and its nsSVGInnerSVGFrame will do that.
nsSVGUseFrameBase::NotifySVGChanged(aFlags);
}
//----------------------------------------------------------------------
// nsIAnonymousContentCreator methods:
nsresult
nsSVGUseFrame::CreateAnonymousContent(nsTArray<ContentInfo>& aElements)
{
nsSVGUseElement *use = static_cast<nsSVGUseElement*>(mContent);
nsIContent* clone = use->CreateAnonymousContent();
if (!clone)
return NS_ERROR_FAILURE;
if (!aElements.AppendElement(clone))
return NS_ERROR_OUT_OF_MEMORY;
return NS_OK;
}
void
nsSVGUseFrame::AppendAnonymousContentTo(nsBaseContentList& aElements,
uint32_t aFilter)
{
nsSVGUseElement *use = static_cast<nsSVGUseElement*>(mContent);
nsIContent* clone = use->GetAnonymousContent();
aElements.MaybeAppendElement(clone);
}