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       1             : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       2             : /* This Source Code Form is subject to the terms of the Mozilla Public
       3             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       4             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
       5             : 
       6             : #ifndef nsMathMLmspaceFrame_h___
       7             : #define nsMathMLmspaceFrame_h___
       8             : 
       9             : #include "mozilla/Attributes.h"
      10             : #include "nsMathMLContainerFrame.h"
      11             : 
      12             : //
      13             : // <mspace> -- space
      14             : //
      15             : 
      16             : class nsMathMLmspaceFrame : public nsMathMLContainerFrame {
      17             : public:
      18           0 :   NS_DECL_FRAMEARENA_HELPERS(nsMathMLmspaceFrame)
      19             : 
      20             :   friend nsIFrame* NS_NewMathMLmspaceFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
      21             : 
      22             :   NS_IMETHOD
      23           0 :   TransmitAutomaticData() override {
      24             :     // The REC defines the following elements to be space-like:
      25             :     // * an mtext, mspace, maligngroup, or malignmark element;
      26           0 :     mPresentationData.flags |= NS_MATHML_SPACE_LIKE;
      27           0 :     return NS_OK;
      28             :   }
      29             : 
      30             :   virtual void
      31             :   Reflow(nsPresContext*          aPresContext,
      32             :          ReflowOutput&     aDesiredSize,
      33             :          const ReflowInput& aReflowInput,
      34             :          nsReflowStatus&          aStatus) override;
      35             : 
      36             : protected:
      37           0 :   explicit nsMathMLmspaceFrame(nsStyleContext* aContext) :
      38           0 :     nsMathMLContainerFrame(aContext, kClassID), mWidth(0), mHeight(0), mDepth(0) {}
      39             :   virtual ~nsMathMLmspaceFrame();
      40             : 
      41             :   virtual nsresult
      42             :   MeasureForWidth(DrawTarget* aDrawTarget,
      43             :                   ReflowOutput& aDesiredSize) override;
      44             : 
      45             : private:
      46             :   nscoord mWidth;
      47             :   nscoord mHeight;
      48             :   nscoord mDepth;
      49             : 
      50             :   // helper method to initialize our member data
      51             :   void
      52             :   ProcessAttributes(nsPresContext* aPresContext);
      53             : };
      54             : 
      55             : #endif /* nsMathMLmspaceFrame_h___ */