Source/WebCore/contentextensions/CompiledContentExtension.cpp

/*
 * 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
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 * 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
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#include "config.h"
#include "CompiledContentExtension.h"
#include "DFABytecodeInterpreter.h"

#if ENABLE(CONTENT_EXTENSIONS)

namespace WebCore {
namespace ContentExtensions {

CompiledContentExtension::~CompiledContentExtension()
{
}

Vector<String> CompiledContentExtension::globalDisplayNoneSelectors()
{
    DFABytecodeInterpreter interpreter(filtersWithoutDomainsBytecode(), filtersWithoutDomainsBytecodeLength());
    DFABytecodeInterpreter::Actions actionLocations = interpreter.actionsForDefaultStylesheetFromDFARoot();
    
    Vector<Action> globalActions;
    for (uint64_t actionLocation : actionLocations)
        globalActions.append(Action::deserialize(actions(), actionsLength(), static_cast<unsigned>(actionLocation)));
    
    Vector<String> selectors;
    for (Action& action : globalActions) {
        if (action.type() == ActionType::CSSDisplayNoneSelector)
            selectors.append(action.stringArgument());
    }
    
    return selectors;
}
    
} // namespace ContentExtensions
} // namespace WebCore

#endif // ENABLE(CONTENT_EXTENSIONS)