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