Source/WebCore/bindings/js/ScriptCachedFrameData.h

/*
 * Copyright (c) 2008, Google Inc. All rights reserved.
 * Copyright (C) 2008 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:
 * 
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * 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.
 *     * Neither the name of Google 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.
 */

#ifndef ScriptCachedFrameData_h
#define ScriptCachedFrameData_h

#include <heap/Strong.h>
#include <wtf/HashMap.h>

namespace WebCore {
    class Frame;
    class JSDOMWindow;
    class DOMWrapperWorld;

    class ScriptCachedFrameData {
        WTF_MAKE_NONCOPYABLE(ScriptCachedFrameData); WTF_MAKE_FAST_ALLOCATED;
        typedef HashMap< RefPtr<DOMWrapperWorld>, JSC::Strong<JSDOMWindow> > JSDOMWindowSet;

    public:
        ScriptCachedFrameData(Frame*);
        ~ScriptCachedFrameData();

        void restore(Frame*);
        void clear();

    private:
        JSDOMWindowSet m_windows;
    };

} // namespace WebCore

#endif // ScriptCachedFrameData_h