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/*
* Copyright (C) 2025 Samuel Weinig <sam@webkit.org>
*
* 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 APPLE INC. ``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 APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* 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 "CSSURL.h"
#include "CSSMarkup.h"
#include "CSSParserContext.h"
#include "CSSSerializationContext.h"
#include "Document.h"
namespace WebCore {
namespace CSS {
// MARK: - Serialization
void Serialize<URL>::operator()(StringBuilder& builder, const SerializationContext& context, const URL& value)
{
// https://drafts.csswg.org/cssom/#serialize-a-url
builder.append(nameLiteralForSerialization(CSSValueUrl), '(');
if (!value.resolved.isNull()) {
if (auto replacementURLString = context.replacementURLStrings.get(value.resolved.string()); !replacementURLString.isEmpty())
serializeString(replacementURLString, builder);
else if (context.shouldUseResolvedURLInCSSText)
serializeString(value.resolved.string(), builder);
else
serializeString(value.specified, builder);
} else
serializeString(value.specified, builder);
if (value.modifiers.crossOrigin) {
builder.append(' ');
serializationForCSS(builder, context, *value.modifiers.crossOrigin);
}
if (value.modifiers.integrity) {
builder.append(' ');
serializationForCSS(builder, context, *value.modifiers.integrity);
}
if (value.modifiers.referrerPolicy) {
builder.append(' ');
serializationForCSS(builder, context, *value.modifiers.referrerPolicy);
}
builder.append(')');
}
// MARK: Operations
static URL completeURL(const String& string, const WTF::URL& baseURL)
{
if (string.isEmpty() || string.startsWith('#'))
return URL { .specified = string, .resolved = WTF::URL { string }, .modifiers = { } };
if (baseURL.isNull() || baseURL.isAboutBlank())
return URL { .specified = string, .resolved = WTF::URL { }, .modifiers = { } };
return URL { .specified = string, .resolved = WTF::URL { baseURL, string }, .modifiers = { } };
}
std::optional<URL> completeURL(const String& string, const CSSParserContext& context)
{
if (string.isNull())
return { };
auto result = completeURL(string, context.baseURL);
if (context.mode == WebVTTMode && !result.resolved.protocolIsData())
return { };
result.modifiers.loadedFromOpaqueSource = context.loadedFromOpaqueSource;
return result;
}
std::optional<URL> completeURL(const String& string, const Document& document)
{
if (string.isNull())
return { };
return completeURL(string, document.baseURL());
}
URL resolve(URL&& url)
{
if (url.resolved.isNull())
url.resolved = WTF::URL { url.specified };
return url;
}
bool mayDependOnBaseURL(const URL& url)
{
return !url.specified.isEmpty()
&& !url.specified.startsWith('#')
&& !url.resolved.protocolIsData();
}
} // namespace CSS
} // namespace WebCore
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