90 lines
3.4 KiB
C++
90 lines
3.4 KiB
C++
/*
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* Copyright (C) 2009 Google Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Google Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include "RenderBlockFlow.h"
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namespace WebCore {
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class RenderRubyBase;
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class RenderRubyText;
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// RenderRubyRuns are 'inline-block/table' like objects, and wrap a single pairing of a ruby base with its ruby text(s).
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// See RenderRuby.h for further comments on the structure
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class RenderRubyRun final : public RenderBlockFlow {
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WTF_MAKE_ISO_ALLOCATED(RenderRubyRun);
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public:
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RenderRubyRun(Document&, RenderStyle&&);
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virtual ~RenderRubyRun();
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bool hasRubyText() const;
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bool hasRubyBase() const;
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RenderRubyText* rubyText() const;
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RenderRubyBase* rubyBase() const;
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void layoutExcludedChildren(bool relayoutChildren) override;
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void layout() override;
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void layoutBlock(bool relayoutChildren, LayoutUnit pageHeight = 0_lu) override;
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bool isChildAllowed(const RenderObject&, const RenderStyle&) const override;
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RenderBlock* firstLineBlock() const override;
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void getOverhang(bool firstLine, RenderObject* startRenderer, RenderObject* endRenderer, float& startOverhang, float& endOverhang) const;
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static RenderPtr<RenderRubyRun> staticCreateRubyRun(const RenderObject* parentRuby);
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void updatePriorContextFromCachedBreakIterator(LazyLineBreakIterator&) const;
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void setCachedPriorCharacters(UChar last, UChar secondToLast)
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{
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m_lastCharacter = last;
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m_secondToLastCharacter = secondToLast;
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}
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bool canBreakBefore(const LazyLineBreakIterator&) const;
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RenderPtr<RenderRubyBase> createRubyBase() const;
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private:
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bool isRubyRun() const override { return true; }
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const char* renderName() const override { return "RenderRubyRun (anonymous)"; }
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bool createsAnonymousWrapper() const override { return true; }
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bool canDropAnonymousBlockChild() const override { return false; }
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private:
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UChar m_lastCharacter;
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UChar m_secondToLastCharacter;
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};
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} // namespace WebCore
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SPECIALIZE_TYPE_TRAITS_RENDER_OBJECT(RenderRubyRun, isRubyRun())
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