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/*
* Copyright (C) 2015 Apple 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS 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 APPLE INC. OR ITS 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.
*/
#pragma once
#if ENABLE(CONTENT_EXTENSIONS)
#include "DFABytecodeInterpreter.h"
#include "StyleSheetContents.h"
#include <wtf/Ref.h>
#include <wtf/RefCounted.h>
#include <wtf/RefPtr.h>
namespace WebCore {
namespace ContentExtensions {
class CompiledContentExtension;
class ContentExtension : public RefCounted<ContentExtension> {
public:
enum class ShouldCompileCSS : bool { No, Yes };
static Ref<ContentExtension> create(const String& identifier, Ref<CompiledContentExtension>&&, URL&&, ShouldCompileCSS);
const String& identifier() const { return m_identifier; }
const URL& extensionBaseURL() const { return m_extensionBaseURL; }
const CompiledContentExtension& compiledExtension() const { return m_compiledExtension.get(); }
StyleSheetContents* globalDisplayNoneStyleSheet();
const DFABytecodeInterpreter::Actions& topURLActions(const URL& topURL) const;
const DFABytecodeInterpreter::Actions& frameURLActions(const URL& frameURL) const;
const Vector<uint64_t>& universalActions() const { return m_universalActions; }
private:
ContentExtension(const String& identifier, Ref<CompiledContentExtension>&&, URL&&, ShouldCompileCSS);
uint32_t findFirstIgnorePreviousRules() const;
String m_identifier;
Ref<CompiledContentExtension> m_compiledExtension;
URL m_extensionBaseURL;
RefPtr<StyleSheetContents> m_globalDisplayNoneStyleSheet;
void compileGlobalDisplayNoneStyleSheet();
void populateTopURLActionCacheIfNeeded(const URL& topURL) const;
mutable URL m_cachedTopURL;
mutable DFABytecodeInterpreter::Actions m_cachedTopURLActions;
void populateFrameURLActionCacheIfNeeded(const URL& frameURL) const;
mutable URL m_cachedFrameURL;
mutable DFABytecodeInterpreter::Actions m_cachedFrameURLActions;
Vector<uint64_t> m_universalActions;
};
} // namespace ContentExtensions
} // namespace WebCore
#endif // ENABLE(CONTENT_EXTENSIONS)