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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /layout/mathml/nsMathMLmoFrame.h
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
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diff --git a/layout/mathml/nsMathMLmoFrame.h b/layout/mathml/nsMathMLmoFrame.h
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+/* -*- 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___ */