layout/generic/nsRubyContentFrame.cpp

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=2 et sw=2 tw=80: */
   3 /* This Source Code is subject to the terms of the Mozilla Public License
   4  * version 2.0 (the "License"). You can obtain a copy of the License at
   5  * http://mozilla.org/MPL/2.0/. */
   6
   7 /* base class for ruby rendering objects that directly contain content */
   8
   9 #include "nsRubyContentFrame.h"
  10 #include "nsPresContext.h"
  11 #include "nsStyleContext.h"
  12 #include "nsCSSAnonBoxes.h"
  13
  14 using namespace mozilla;
  15
  16 //----------------------------------------------------------------------
  17
  18 // Frame class boilerplate
  19 // =======================
  20
  21 NS_IMPL_FRAMEARENA_HELPERS(nsRubyContentFrame)
  22
  23 //----------------------------------------------------------------------
  24
  25 // nsRubyContentFrame Method Implementations
  26 // ======================================
  27
  28 /* virtual */ bool
  29 nsRubyContentFrame::IsFrameOfType(uint32_t aFlags) const
  30 {
  31   if (aFlags & eBidiInlineContainer) {
  32     return false;
  33   }
  34   return nsRubyContentFrameSuper::IsFrameOfType(aFlags);
  35 }
  36
  37 bool
  38 nsRubyContentFrame::IsIntraLevelWhitespace() const
  39 {
  40   nsIAtom* pseudoType = StyleContext()->GetPseudo();
  41   if (pseudoType != nsCSSAnonBoxes::rubyBase &&
  42       pseudoType != nsCSSAnonBoxes::rubyText) {
  43     return false;
  44   }
  45
  46   nsIFrame* child = mFrames.OnlyChild();
  47   return child && child->GetContent()->TextIsOnlyWhitespace();
  48 }