layout/mathml/nsMathMLmsqrtFrame.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 #include "nsMathMLmsqrtFrame.h"
   8
   9 #include "mozilla/PresShell.h"
  10 #include "mozilla/gfx/2D.h"
  11
  12 //
  13 // <msqrt> -- form a radical - implementation
  14 //
  15
  16 using namespace mozilla;
  17
  18 nsIFrame* NS_NewMathMLmsqrtFrame(PresShell* aPresShell, ComputedStyle* aStyle) {
  19   return new (aPresShell)
  20       nsMathMLmsqrtFrame(aStyle, aPresShell->GetPresContext());
  21 }
  22
  23 NS_IMPL_FRAMEARENA_HELPERS(nsMathMLmsqrtFrame)
  24
  25 nsMathMLmsqrtFrame::nsMathMLmsqrtFrame(ComputedStyle* aStyle,
  26                                        nsPresContext* aPresContext)
  27     : nsMathMLmencloseFrame(aStyle, aPresContext, kClassID) {}
  28
  29 nsMathMLmsqrtFrame::~nsMathMLmsqrtFrame() = default;
  30
  31 void nsMathMLmsqrtFrame::Init(nsIContent* aContent, nsContainerFrame* aParent,
  32                               nsIFrame* aPrevInFlow) {
  33   nsMathMLContainerFrame::Init(aContent, aParent, aPrevInFlow);
  34   AllocateMathMLChar(NOTATION_RADICAL);
  35   mNotationsToDraw += NOTATION_RADICAL;
  36 }
  37
  38 NS_IMETHODIMP
  39 nsMathMLmsqrtFrame::InheritAutomaticData(nsIFrame* aParent) {
  40   nsMathMLContainerFrame::InheritAutomaticData(aParent);
  41
  42   mPresentationData.flags |= NS_MATHML_STRETCH_ALL_CHILDREN_VERTICALLY;
  43
  44   return NS_OK;
  45 }
  46
  47 nsresult nsMathMLmsqrtFrame::AttributeChanged(int32_t aNameSpaceID,
  48                                               nsAtom* aAttribute,
  49                                               int32_t aModType) {
  50   return nsMathMLContainerFrame::AttributeChanged(aNameSpaceID, aAttribute,
  51                                                   aModType);
  52 }