layout/svg/SVGGFrame.cpp

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 // Main header first:
   8 #include "SVGGFrame.h"
   9
  10 // Keep others in (case-insensitive) order:
  11 #include "mozilla/dom/SVGElement.h"
  12 #include "mozilla/PresShell.h"
  13 #include "nsGkAtoms.h"
  14 #include "nsIFrame.h"
  15
  16 using namespace mozilla::dom;
  17
  18 //----------------------------------------------------------------------
  19 // Implementation
  20
  21 nsIFrame* NS_NewSVGGFrame(mozilla::PresShell* aPresShell,
  22                           mozilla::ComputedStyle* aStyle) {
  23   return new (aPresShell)
  24       mozilla::SVGGFrame(aStyle, aPresShell->GetPresContext());
  25 }
  26
  27 namespace mozilla {
  28
  29 NS_IMPL_FRAMEARENA_HELPERS(SVGGFrame)
  30
  31 #ifdef DEBUG
  32 void SVGGFrame::Init(nsIContent* aContent, nsContainerFrame* aParent,
  33                      nsIFrame* aPrevInFlow) {
  34   NS_ASSERTION(aContent->IsSVGElement() &&
  35                    static_cast<SVGElement*>(aContent)->IsTransformable(),
  36                "The element is not transformable");
  37
  38   SVGDisplayContainerFrame::Init(aContent, aParent, aPrevInFlow);
  39 }
  40 #endif /* DEBUG */
  41
  42 //----------------------------------------------------------------------
  43 // ISVGDisplayableFrame methods
  44
  45 nsresult SVGGFrame::AttributeChanged(int32_t aNameSpaceID, nsAtom* aAttribute,
  46                                      int32_t aModType) {
  47   if (aNameSpaceID == kNameSpaceID_None && aAttribute == nsGkAtoms::transform) {
  48     // We don't invalidate for transform changes (the layers code does that).
  49     // Also note that SVGTransformableElement::GetAttributeChangeHint will
  50     // return nsChangeHint_UpdateOverflow for "transform" attribute changes
  51     // and cause DoApplyRenderingChangeToTree to make the SchedulePaint call.
  52     NotifySVGChanged(TRANSFORM_CHANGED);
  53   }
  54
  55   return NS_OK;
  56 }
  57
  58 }  // namespace mozilla