layout/svg/SVGSymbolFrame.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 "SVGSymbolFrame.h"
   9
  10 #include "mozilla/dom/SVGSymbolElement.h"
  11 #include "mozilla/PresShell.h"
  12
  13 nsIFrame* NS_NewSVGSymbolFrame(mozilla::PresShell* aPresShell,
  14                                mozilla::ComputedStyle* aStyle) {
  15   return new (aPresShell)
  16       mozilla::SVGSymbolFrame(aStyle, aPresShell->GetPresContext());
  17 }
  18
  19 namespace mozilla {
  20
  21 NS_IMPL_FRAMEARENA_HELPERS(SVGSymbolFrame)
  22
  23 //----------------------------------------------------------------------
  24 // nsIFrame methods
  25
  26 NS_QUERYFRAME_HEAD(SVGSymbolFrame)
  27   NS_QUERYFRAME_ENTRY(SVGSymbolFrame)
  28 NS_QUERYFRAME_TAIL_INHERITING(SVGViewportFrame)
  29
  30 void SVGSymbolFrame::Init(nsIContent* aContent, nsContainerFrame* aParent,
  31                           nsIFrame* aPrevInFlow) {
  32   MOZ_ASSERT(aContent->IsSVGElement(nsGkAtoms::symbol),
  33              "Content is not an SVG 'symbol' element!");
  34
  35   if (!dom::SVGSymbolElement::FromNode(aContent)->CouldBeRendered()) {
  36     AddStateBits(NS_FRAME_IS_NONDISPLAY);
  37   }
  38
  39   SVGViewportFrame::Init(aContent, aParent, aPrevInFlow);
  40 }
  41
  42 void SVGSymbolFrame::BuildDisplayList(nsDisplayListBuilder* aBuilder,
  43                                       const nsDisplayListSet& aLists) {
  44   if (HasAnyStateBits(NS_FRAME_IS_NONDISPLAY)) {
  45     return;
  46   }
  47   SVGViewportFrame::BuildDisplayList(aBuilder, aLists);
  48 }
  49
  50 }  // namespace mozilla