95 lines
3.4 KiB
C++
95 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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#include "config.h"
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#include "RenderRubyBase.h"
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#include "RenderRubyRun.h"
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#include "RenderRubyText.h"
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#include <wtf/IsoMallocInlines.h>
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namespace WebCore {
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WTF_MAKE_ISO_ALLOCATED_IMPL(RenderRubyBase);
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RenderRubyBase::RenderRubyBase(Document& document, RenderStyle&& style)
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: RenderBlockFlow(document, WTFMove(style))
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, m_initialOffset(0)
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, m_isAfterExpansion(true)
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{
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setInline(false);
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}
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RenderRubyBase::~RenderRubyBase() = default;
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bool RenderRubyBase::isChildAllowed(const RenderObject& child, const RenderStyle&) const
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{
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return child.isInline();
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}
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RenderRubyRun* RenderRubyBase::rubyRun() const
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{
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ASSERT(parent());
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return downcast<RenderRubyRun>(parent());
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}
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std::optional<TextAlignMode> RenderRubyBase::overrideTextAlignmentForLine(bool /* endsWithSoftBreak */) const
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{
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return TextAlignMode::Justify;
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}
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void RenderRubyBase::adjustInlineDirectionLineBounds(int expansionOpportunityCount, float& logicalLeft, float& logicalWidth) const
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{
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if (rubyRun()->hasOverridingLogicalWidth() && firstRootBox() && !firstRootBox()->nextRootBox()) {
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logicalLeft += m_initialOffset;
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logicalWidth -= 2 * m_initialOffset;
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return;
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}
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LayoutUnit maxPreferredLogicalWidth = rubyRun() && rubyRun()->hasOverridingLogicalWidth() ? rubyRun()->overridingLogicalWidth() : this->maxPreferredLogicalWidth();
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if (maxPreferredLogicalWidth >= logicalWidth)
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return;
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// Inset the ruby base by half the inter-ideograph expansion amount.
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float inset = (logicalWidth - maxPreferredLogicalWidth) / (expansionOpportunityCount + 1);
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logicalLeft += inset / 2;
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logicalWidth -= inset;
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}
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void RenderRubyBase::cachePriorCharactersIfNeeded(const LazyLineBreakIterator& lineBreakIterator)
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{
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auto* run = rubyRun();
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if (run)
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run->setCachedPriorCharacters(lineBreakIterator.lastCharacter(), lineBreakIterator.secondToLastCharacter());
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}
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} // namespace WebCore
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