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/*
* Copyright (C) 2022 Apple Inc. All rights reserved.
* Copyright (C) 2012 Motorola Mobility Inc. 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.
* 3. Neither the name of Motorola Mobility 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.
*/
#include "config.h"
#include "DOMCSSNamespace.h"
#include "CSSMarkup.h"
#include "CSSParser.h"
#include "CSSPropertyNames.h"
#include "CSSPropertyParser.h"
#include "Document.h"
#include "HighlightRegistry.h"
#include "MutableStyleProperties.h"
#include "StyleProperties.h"
#include <wtf/text/StringBuilder.h>
#include <wtf/text/WTFString.h>
namespace WebCore {
bool DOMCSSNamespace::supports(Document& document, const String& property, const String& value)
{
CSSParserContext parserContext(document);
parserContext.mode = HTMLStandardMode;
auto propertyNameWithoutWhitespace = property;
CSSPropertyID propertyID = cssPropertyID(propertyNameWithoutWhitespace);
if (propertyID == CSSPropertyInvalid && isCustomPropertyName(propertyNameWithoutWhitespace)) {
auto dummyStyle = MutableStyleProperties::create();
return CSSParser::parseCustomPropertyValue(dummyStyle, AtomString { propertyNameWithoutWhitespace }, value, IsImportant::No, parserContext) != CSSParser::ParseResult::Error;
}
if (!isExposed(propertyID, &document.settings()))
return false;
if (CSSProperty::isDescriptorOnly(propertyID))
return false;
if (propertyID == CSSPropertyInvalid)
return false;
if (value.isEmpty())
return false;
auto dummyStyle = MutableStyleProperties::create();
return CSSParser::parseValue(dummyStyle, propertyID, value, IsImportant::No, parserContext) != CSSParser::ParseResult::Error;
}
bool DOMCSSNamespace::supports(Document& document, const String& conditionText)
{
CSSParserContext context(document);
context.mode = HTMLStandardMode;
CSSParser parser(context);
return parser.parseSupportsCondition(conditionText);
}
String DOMCSSNamespace::escape(const String& ident)
{
StringBuilder builder;
serializeIdentifier(ident, builder);
return builder.toString();
}
HighlightRegistry& DOMCSSNamespace::highlights(Document& document)
{
return document.highlightRegistry();
}
}
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