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/*
* Copyright (C) 2009 Alex Milowski (alex@milowski.com). All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* 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.
*/
#include "config.h"
#include "RenderMathMLFenced.h"
#if ENABLE(MATHML)
#include "ElementInlines.h"
#include "FontSelector.h"
#include "MathMLNames.h"
#include "MathMLRowElement.h"
#include "RenderBoxInlines.h"
#include "RenderBoxModelObjectInlines.h"
#include "RenderInline.h"
#include "RenderMathMLFencedOperator.h"
#include "RenderText.h"
#include "RenderTreeBuilder.h"
#include <wtf/TZoneMallocInlines.h>
#include <wtf/text/StringBuilder.h>
namespace WebCore {
using namespace MathMLNames;
WTF_MAKE_TZONE_OR_ISO_ALLOCATED_IMPL(RenderMathMLFenced);
static constexpr auto gOpeningBraceChar = "("_s;
static constexpr auto gClosingBraceChar = ")"_s;
RenderMathMLFenced::RenderMathMLFenced(MathMLRowElement& element, RenderStyle&& style)
: RenderMathMLRow(Type::MathMLFenced, element, WTFMove(style))
{
ASSERT(isRenderMathMLFenced());
}
RenderMathMLFenced::~RenderMathMLFenced() = default;
void RenderMathMLFenced::updateFromElement()
{
const Ref fenced = element();
// The open operator defaults to a left parenthesis.
auto& open = fenced->attributeWithoutSynchronization(MathMLNames::openAttr);
m_open = open.isNull() ? gOpeningBraceChar : open;
// The close operator defaults to a right parenthesis.
auto& close = fenced->attributeWithoutSynchronization(MathMLNames::closeAttr);
m_close = close.isNull() ? gClosingBraceChar : close;
auto& separators = fenced->attributeWithoutSynchronization(MathMLNames::separatorsAttr);
if (!separators.isNull()) {
StringBuilder characters;
for (unsigned i = 0; i < separators.length(); i++) {
if (!deprecatedIsSpaceOrNewline(separators[i]))
characters.append(separators[i]);
}
m_separators = !characters.length() ? 0 : characters.toString().impl();
} else {
// The separator defaults to a single comma.
m_separators = StringImpl::create(","_s);
}
if (firstChild()) {
// 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).
if (auto* fencedOperator = dynamicDowncast<RenderMathMLFencedOperator>(*firstChild()))
fencedOperator->updateOperatorContent(m_open);
m_closeFenceRenderer->updateOperatorContent(m_close);
}
}
}
#endif
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