forked from mirrors/gecko-dev
646fb37989
This patch makes do_QueryFrame() accept const frame pointer e.g. "const nsIFrame*", and also helps eliminate a few const_cast in Part 3. Note that the fast path of do_QueryFrame is const-correct, but the slow path is not (due to nsIFrame::QueryFrame() returns void*). For example: ``` const nsIFrame* f; nsBlockFrame* a = do_QueryFrame(f); // fast path, compile error. nsIAnonymousContentCreator* b = do_QueryFrame(f); // slow path, still compiles. ``` Differential Revision: https://phabricator.services.mozilla.com/D19860 --HG-- extra : moz-landing-system : lando
54 lines
2 KiB
C++
54 lines
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 nsMathMLSelectedFrame_h___
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#define nsMathMLSelectedFrame_h___
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#include "nsMathMLContainerFrame.h"
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class nsMathMLSelectedFrame : public nsMathMLContainerFrame {
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public:
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NS_DECL_ABSTRACT_FRAME(nsMathMLSelectedFrame)
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NS_IMETHOD
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TransmitAutomaticData() override;
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virtual void SetInitialChildList(ChildListID aListID,
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nsFrameList& aChildList) override;
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virtual nsresult ChildListChanged(int32_t aModType) override;
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virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder,
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const nsDisplayListSet& aLists) override;
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virtual nsresult Place(DrawTarget* aDrawTarget, bool aPlaceOrigin,
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ReflowOutput& aDesiredSize) override;
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virtual mozilla::LogicalSize ComputeSize(
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gfxContext* aRenderingContext, mozilla::WritingMode aWritingMode,
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const mozilla::LogicalSize& aCBSize, nscoord aAvailableISize,
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const mozilla::LogicalSize& aMargin, const mozilla::LogicalSize& aBorder,
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const mozilla::LogicalSize& aPadding, ComputeSizeFlags aFlags) 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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protected:
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nsMathMLSelectedFrame(ComputedStyle* aStyle, nsPresContext* aPresContext,
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ClassID aID)
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: nsMathMLContainerFrame(aStyle, aPresContext, aID),
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mSelectedFrame(nullptr),
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mInvalidMarkup(false) {}
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virtual ~nsMathMLSelectedFrame();
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virtual nsIFrame* GetSelectedFrame() = 0;
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nsIFrame* mSelectedFrame;
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bool mInvalidMarkup;
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};
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#endif /* nsMathMLSelectedFrame_h___ */
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