зеркало из https://github.com/mozilla/gecko-dev.git
62 строки
2.1 KiB
C++
62 строки
2.1 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 RETAINEDDISPLAYLISTBUILDER_H_
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#define RETAINEDDISPLAYLISTBUILDER_H_
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#include "nsDisplayList.h"
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#include "mozilla/Maybe.h"
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struct RetainedDisplayListBuilder {
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RetainedDisplayListBuilder(nsIFrame* aReferenceFrame,
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nsDisplayListBuilderMode aMode,
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bool aBuildCaret)
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: mBuilder(aReferenceFrame, aMode, aBuildCaret, true)
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{}
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~RetainedDisplayListBuilder()
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{
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mList.DeleteAll(&mBuilder);
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}
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nsDisplayListBuilder* Builder() { return &mBuilder; }
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nsDisplayList* List() { return &mList; }
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bool AttemptPartialUpdate(nscolor aBackstop);
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/**
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* Iterates through the display list builder reference frame document and
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* subdocuments, and clears the modified frame lists from the root frames.
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* Also clears the frame properties set by RetainedDisplayListBuilder for all
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* the frames in the modified frame lists.
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*/
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void ClearModifiedFrameProps();
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NS_DECLARE_FRAME_PROPERTY_DELETABLE(Cached, RetainedDisplayListBuilder)
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private:
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void PreProcessDisplayList(nsDisplayList* aList, AnimatedGeometryRoot* aAGR);
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void MergeDisplayLists(nsDisplayList* aNewList,
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nsDisplayList* aOldList,
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nsDisplayList* aOutList,
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mozilla::Maybe<const mozilla::ActiveScrolledRoot*>& aOutContainerASR);
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bool ComputeRebuildRegion(nsTArray<nsIFrame*>& aModifiedFrames,
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nsRect* aOutDirty,
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AnimatedGeometryRoot** aOutModifiedAGR,
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nsTArray<nsIFrame*>* aOutFramesWithProps);
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void IncrementSubDocPresShellPaintCount(nsDisplayItem* aItem);
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nsDisplayListBuilder mBuilder;
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nsDisplayList mList;
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WeakFrame mPreviousCaret;
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};
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#endif // RETAINEDDISPLAYLISTBUILDER_H_
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