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86 lines
2.5 KiB
C++
86 lines
2.5 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef nsMathMLTokenFrame_h___
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#define nsMathMLTokenFrame_h___
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#include "mozilla/Attributes.h"
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#include "nsCOMPtr.h"
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#include "nsMathMLContainerFrame.h"
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//
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// Base class to handle token elements
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//
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class nsMathMLTokenFrame : public nsMathMLContainerFrame {
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public:
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NS_DECL_FRAMEARENA_HELPERS
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friend nsIFrame* NS_NewMathMLTokenFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
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NS_IMETHOD
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TransmitAutomaticData() MOZ_OVERRIDE {
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// The REC defines the following elements to be space-like:
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// * an mtext, mspace, maligngroup, or malignmark element;
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if (mContent->Tag() == nsGkAtoms::mtext_) {
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mPresentationData.flags |= NS_MATHML_SPACE_LIKE;
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}
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return NS_OK;
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}
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NS_IMETHOD
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InheritAutomaticData(nsIFrame* aParent) MOZ_OVERRIDE;
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virtual eMathMLFrameType GetMathMLFrameType() MOZ_OVERRIDE;
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NS_IMETHOD
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SetInitialChildList(ChildListID aListID,
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nsFrameList& aChildList) MOZ_OVERRIDE;
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NS_IMETHOD
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AppendFrames(ChildListID aListID,
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nsFrameList& aChildList) MOZ_OVERRIDE;
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NS_IMETHOD
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InsertFrames(ChildListID aListID,
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nsIFrame* aPrevFrame,
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nsFrameList& aChildList) MOZ_OVERRIDE;
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NS_IMETHOD
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Reflow(nsPresContext* aPresContext,
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nsHTMLReflowMetrics& aDesiredSize,
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const nsHTMLReflowState& aReflowState,
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nsReflowStatus& aStatus) MOZ_OVERRIDE;
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virtual nsresult
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Place(nsRenderingContext& aRenderingContext,
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bool aPlaceOrigin,
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nsHTMLReflowMetrics& aDesiredSize) MOZ_OVERRIDE;
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virtual void MarkIntrinsicWidthsDirty() MOZ_OVERRIDE;
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virtual nsresult
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ChildListChanged(int32_t aModType) MOZ_OVERRIDE
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{
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ProcessTextData();
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return nsMathMLContainerFrame::ChildListChanged(aModType);
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}
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protected:
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nsMathMLTokenFrame(nsStyleContext* aContext) : nsMathMLContainerFrame(aContext) {}
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virtual ~nsMathMLTokenFrame();
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// hook to perform MathML-specific actions depending on the tag
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virtual void ProcessTextData();
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// helper to set the style of <mi> which has to be italic or normal
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// depending on its textual content
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bool SetTextStyle();
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void ForceTrimChildTextFrames();
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};
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#endif /* nsMathMLTokentFrame_h___ */
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