91 lines
3.4 KiB
C++
91 lines
3.4 KiB
C++
/*
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* Copyright (C) 2009 Alex Milowski (alex@milowski.com). 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
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* are met:
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* 1. 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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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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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 "RenderMathMLFenced.h"
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#if ENABLE(MATHML)
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#include "FontSelector.h"
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#include "MathMLNames.h"
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#include "MathMLRowElement.h"
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#include "RenderInline.h"
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#include "RenderMathMLFencedOperator.h"
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#include "RenderText.h"
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#include "RenderTreeBuilder.h"
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#include <wtf/IsoMallocInlines.h>
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#include <wtf/text/StringBuilder.h>
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namespace WebCore {
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using namespace MathMLNames;
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WTF_MAKE_ISO_ALLOCATED_IMPL(RenderMathMLFenced);
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static const char* gOpeningBraceChar = "(";
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static const char* gClosingBraceChar = ")";
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RenderMathMLFenced::RenderMathMLFenced(MathMLRowElement& element, RenderStyle&& style)
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: RenderMathMLRow(element, WTFMove(style))
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{
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}
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void RenderMathMLFenced::updateFromElement()
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{
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const auto& fenced = element();
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// The open operator defaults to a left parenthesis.
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auto& open = fenced.attributeWithoutSynchronization(MathMLNames::openAttr);
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m_open = open.isNull() ? gOpeningBraceChar : open;
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// The close operator defaults to a right parenthesis.
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auto& close = fenced.attributeWithoutSynchronization(MathMLNames::closeAttr);
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m_close = close.isNull() ? gClosingBraceChar : close;
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auto& separators = fenced.attributeWithoutSynchronization(MathMLNames::separatorsAttr);
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if (!separators.isNull()) {
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StringBuilder characters;
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for (unsigned i = 0; i < separators.length(); i++) {
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if (!isSpaceOrNewline(separators[i]))
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characters.append(separators[i]);
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}
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m_separators = !characters.length() ? 0 : characters.toString().impl();
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} else {
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// The separator defaults to a single comma.
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m_separators = StringImpl::create(",");
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}
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if (firstChild()) {
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// FIXME: The mfenced element fails to update dynamically when its open, close and separators attributes are changed (https://bugs.webkit.org/show_bug.cgi?id=57696).
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if (is<RenderMathMLFencedOperator>(*firstChild()))
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downcast<RenderMathMLFencedOperator>(*firstChild()).updateOperatorContent(m_open);
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m_closeFenceRenderer->updateOperatorContent(m_close);
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}
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}
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}
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#endif
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