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/*
* Copyright (C) 2009 Google Inc. All rights reserved.
* Copyright (C) 2023 Apple Inc. All right reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include "RenderBlockFlow.h"
namespace WebCore {
class RenderRubyBase;
class RenderRubyText;
// RenderRubyRuns are 'inline-block/table' like objects, and wrap a single pairing of a ruby base with its ruby text(s).
// See RenderRuby.h for further comments on the structure
class RenderRubyRun final : public RenderBlockFlow {
WTF_MAKE_ISO_ALLOCATED(RenderRubyRun);
public:
RenderRubyRun(Document&, RenderStyle&&);
virtual ~RenderRubyRun();
bool hasRubyText() const;
bool hasRubyBase() const;
RenderRubyText* rubyText() const;
RenderRubyBase* rubyBase() const;
void layoutExcludedChildren(bool relayoutChildren) override;
void layout() override;
void layoutBlock(bool relayoutChildren, LayoutUnit pageHeight = 0_lu) override;
LayoutUnit baselinePosition(FontBaseline, bool firstLine, LineDirectionMode, LinePositionMode = PositionOnContainingLine) const final;
bool isChildAllowed(const RenderObject&, const RenderStyle&) const override;
void getOverhang(bool firstLine, RenderObject* startRenderer, RenderObject* endRenderer, float& startOverhang, float& endOverhang) const;
std::pair<float, float> startAndEndOverhang(bool forFirstLine) const;
static RenderPtr<RenderRubyRun> staticCreateRubyRun(const RenderObject* parentRuby);
void updatePriorContextFromCachedBreakIterator(CachedLineBreakIteratorFactory&) const;
void setCachedPriorCharacters(UChar last, UChar secondToLast)
{
m_lastCharacter = last;
m_secondToLastCharacter = secondToLast;
}
bool canBreakBefore(const CachedLineBreakIteratorFactory&) const;
std::pair<LayoutUnit, LayoutUnit> annotationsAboveAndBelow() const;
RenderPtr<RenderRubyBase> createRubyBase() const;
private:
bool isRubyRun() const override { return true; }
ASCIILiteral renderName() const override { return "RenderRubyRun (anonymous)"_s; }
bool createsAnonymousWrapper() const override { return true; }
bool canDropAnonymousBlockChild() const override { return false; }
private:
UChar m_lastCharacter;
UChar m_secondToLastCharacter;
};
} // namespace WebCore
SPECIALIZE_TYPE_TRAITS_RENDER_OBJECT(RenderRubyRun, isRubyRun())
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