michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #ifndef nsMathMLmoFrame_h___
michael@0: #define nsMathMLmoFrame_h___
michael@0: 
michael@0: #include "mozilla/Attributes.h"
michael@0: #include "nsMathMLTokenFrame.h"
michael@0: #include "nsMathMLChar.h"
michael@0: 
michael@0: //
michael@0: // <mo> -- operator, fence, or separator
michael@0: //
michael@0: 
michael@0: class nsMathMLmoFrame : public nsMathMLTokenFrame {
michael@0: public:
michael@0:   NS_DECL_FRAMEARENA_HELPERS
michael@0: 
michael@0:   friend nsIFrame* NS_NewMathMLmoFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
michael@0: 
michael@0:   virtual eMathMLFrameType GetMathMLFrameType() MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual void
michael@0:   SetAdditionalStyleContext(int32_t          aIndex, 
michael@0:                             nsStyleContext*  aStyleContext) MOZ_OVERRIDE;
michael@0:   virtual nsStyleContext*
michael@0:   GetAdditionalStyleContext(int32_t aIndex) const MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual void BuildDisplayList(nsDisplayListBuilder*   aBuilder,
michael@0:                                 const nsRect&           aDirtyRect,
michael@0:                                 const nsDisplayListSet& aLists) MOZ_OVERRIDE;
michael@0: 
michael@0:   NS_IMETHOD
michael@0:   InheritAutomaticData(nsIFrame* aParent) MOZ_OVERRIDE;
michael@0: 
michael@0:   NS_IMETHOD
michael@0:   TransmitAutomaticData() MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual nsresult
michael@0:   SetInitialChildList(ChildListID     aListID,
michael@0:                       nsFrameList&    aChildList) MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual nsresult
michael@0:   Reflow(nsPresContext*          aPresContext,
michael@0:          nsHTMLReflowMetrics&     aDesiredSize,
michael@0:          const nsHTMLReflowState& aReflowState,
michael@0:          nsReflowStatus&          aStatus) MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual void MarkIntrinsicWidthsDirty() MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual void
michael@0:   GetIntrinsicWidthMetrics(nsRenderingContext* aRenderingContext,
michael@0:                            nsHTMLReflowMetrics& aDesiredSize) MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual nsresult
michael@0:   AttributeChanged(int32_t         aNameSpaceID,
michael@0:                    nsIAtom*        aAttribute,
michael@0:                    int32_t         aModType) MOZ_OVERRIDE;
michael@0: 
michael@0:   // This method is called by the parent frame to ask <mo> 
michael@0:   // to stretch itself.
michael@0:   NS_IMETHOD
michael@0:   Stretch(nsRenderingContext& aRenderingContext,
michael@0:           nsStretchDirection   aStretchDirection,
michael@0:           nsBoundingMetrics&   aContainerSize,
michael@0:           nsHTMLReflowMetrics& aDesiredStretchSize) MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual nsresult
michael@0:   ChildListChanged(int32_t aModType) MOZ_OVERRIDE
michael@0:   {
michael@0:     ProcessTextData();
michael@0:     return nsMathMLContainerFrame::ChildListChanged(aModType);
michael@0:   }
michael@0: 
michael@0: protected:
michael@0:   nsMathMLmoFrame(nsStyleContext* aContext) : nsMathMLTokenFrame(aContext) {}
michael@0:   virtual ~nsMathMLmoFrame();
michael@0:   
michael@0:   nsMathMLChar     mMathMLChar; // Here is the MathMLChar that will deal with the operator.
michael@0:   nsOperatorFlags  mFlags;
michael@0:   float            mMinSize;
michael@0:   float            mMaxSize;
michael@0: 
michael@0:   bool UseMathMLChar();
michael@0: 
michael@0:   // overload the base method so that we can setup our nsMathMLChar
michael@0:   void ProcessTextData();
michael@0: 
michael@0:   // helper to get our 'form' and lookup in the Operator Dictionary to fetch 
michael@0:   // our default data that may come from there, and to complete the setup
michael@0:   // using attributes that we may have
michael@0:   void
michael@0:   ProcessOperatorData();
michael@0: 
michael@0:   // helper to double check thar our char should be rendered as a selected char
michael@0:   bool
michael@0:   IsFrameInSelection(nsIFrame* aFrame);
michael@0: };
michael@0: 
michael@0: #endif /* nsMathMLmoFrame_h___ */