096c9e730e
Backed out changeset d497ae104185 (bug 1908069) Backed out changeset c87b8ca300dc (bug 1908069) Backed out changeset 3e76c02843a7 (bug 1908069) Backed out changeset f4c5983c700b (bug 1908069) Backed out changeset 5468da212605 (bug 1908069) Backed out changeset ab5ab71ddfc4 (bug 1908069) Backed out changeset 21269d373fff (bug 1908069)
101 lines
3.2 KiB
C++
101 lines
3.2 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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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 nsMathMLmoFrame_h___
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#define nsMathMLmoFrame_h___
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#include "mozilla/Attributes.h"
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#include "nsMathMLTokenFrame.h"
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#include "nsMathMLChar.h"
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namespace mozilla {
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class PresShell;
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} // namespace mozilla
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//
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// <mo> -- operator, fence, or separator
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//
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class nsMathMLmoFrame final : public nsMathMLTokenFrame {
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public:
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NS_DECL_FRAMEARENA_HELPERS(nsMathMLmoFrame)
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friend nsIFrame* NS_NewMathMLmoFrame(mozilla::PresShell* aPresShell,
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ComputedStyle* aStyle);
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eMathMLFrameType GetMathMLFrameType() override;
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void DidSetComputedStyle(ComputedStyle* aOldStyle) override;
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void BuildDisplayList(nsDisplayListBuilder* aBuilder,
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const nsDisplayListSet& aLists) override;
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NS_IMETHOD
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InheritAutomaticData(nsIFrame* aParent) override;
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NS_IMETHOD
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TransmitAutomaticData() override;
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void SetInitialChildList(ChildListID aListID,
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nsFrameList&& aChildList) override;
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virtual void Reflow(nsPresContext* aPresContext, ReflowOutput& aDesiredSize,
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const ReflowInput& aReflowInput,
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nsReflowStatus& aStatus) override;
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virtual nsresult Place(DrawTarget* aDrawTarget, bool aPlaceOrigin,
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ReflowOutput& aDesiredSize) override;
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virtual void MarkIntrinsicISizesDirty() override;
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virtual void GetIntrinsicISizeMetrics(gfxContext* aRenderingContext,
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ReflowOutput& aDesiredSize) override;
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virtual nsresult AttributeChanged(int32_t aNameSpaceID, nsAtom* aAttribute,
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int32_t aModType) override;
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// This method is called by the parent frame to ask <mo>
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// to stretch itself.
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NS_IMETHOD
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Stretch(DrawTarget* aDrawTarget, nsStretchDirection aStretchDirection,
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nsBoundingMetrics& aContainerSize,
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ReflowOutput& aDesiredStretchSize) override;
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virtual nsresult ChildListChanged(int32_t aModType) override {
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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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explicit nsMathMLmoFrame(ComputedStyle* aStyle, nsPresContext* aPresContext)
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: nsMathMLTokenFrame(aStyle, aPresContext, kClassID),
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mFlags(0),
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mMinSize(0),
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mMaxSize(0) {}
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virtual ~nsMathMLmoFrame();
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nsMathMLChar
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mMathMLChar; // Here is the MathMLChar that will deal with the operator.
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nsOperatorFlags mFlags;
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float mMinSize;
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float mMaxSize;
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bool UseMathMLChar();
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// overload the base method so that we can setup our nsMathMLChar
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void ProcessTextData();
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// helper to get our 'form' and lookup in the Operator Dictionary to fetch
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// our default data that may come from there, and to complete the setup
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// using attributes that we may have
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void ProcessOperatorData();
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// helper to double check thar our char should be rendered as a selected char
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bool IsFrameInSelection(nsIFrame* aFrame);
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};
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#endif /* nsMathMLmoFrame_h___ */
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