gecko-dev/layout/svg/nsSVGGFrame.cpp

64 строки
2.0 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/. */
// Main header first:
#include "nsSVGGFrame.h"
// Keep others in (case-insensitive) order:
#include "nsGkAtoms.h"
#include "SVGTransformableElement.h"
#include "nsIFrame.h"
#include "SVGGraphicsElement.h"
#include "nsSVGIntegrationUtils.h"
#include "nsSVGUtils.h"
using namespace mozilla::dom;
//----------------------------------------------------------------------
// Implementation
nsIFrame*
NS_NewSVGGFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
{
return new (aPresShell) nsSVGGFrame(aContext);
}
NS_IMPL_FRAMEARENA_HELPERS(nsSVGGFrame)
#ifdef DEBUG
void
nsSVGGFrame::Init(nsIContent* aContent,
nsContainerFrame* aParent,
nsIFrame* aPrevInFlow)
{
NS_ASSERTION(aContent->IsSVGElement() &&
static_cast<nsSVGElement*>(aContent)->IsTransformable(),
"The element doesn't support nsIDOMSVGTransformable");
nsSVGDisplayContainerFrame::Init(aContent, aParent, aPrevInFlow);
}
#endif /* DEBUG */
//----------------------------------------------------------------------
// nsSVGDisplayableFrame methods
nsresult
nsSVGGFrame::AttributeChanged(int32_t aNameSpaceID,
nsAtom* aAttribute,
int32_t aModType)
{
if (aNameSpaceID == kNameSpaceID_None &&
aAttribute == nsGkAtoms::transform) {
// We don't invalidate for transform changes (the layers code does that).
// Also note that SVGTransformableElement::GetAttributeChangeHint will
// return nsChangeHint_UpdateOverflow for "transform" attribute changes
// and cause DoApplyRenderingChangeToTree to make the SchedulePaint call.
NotifySVGChanged(TRANSFORM_CHANGED);
}
return NS_OK;
}