/*
* Copyright (C) 2009 Google 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 TimelineItem_h
#define TimelineItem_h

#include <wtf/OwnPtr.h>
#include <wtf/PassOwnPtr.h>
#include <wtf/Vector.h>

namespace WebCore {

    class InspectorFrontend;
    class TimelineItem;
    class ScriptArray;
    class ScriptObject;

    typedef Vector<OwnPtr<TimelineItem> > TimelineItems;

    // Must be kept in sync with TimelineAgent.js
    enum TimelineItemType {
        DOMDispatchTimelineItemType = 0,
        LayoutTimelineItemType = 1,
        RecalculateStylesTimelineItemType = 2,
        PaintTimelineItemType = 3,
        ParseHTMLTimelineItemType = 4,
    };

    class TimelineItem {
    public:
        TimelineItem(PassOwnPtr<TimelineItem>, double startTime, TimelineItemType);

        virtual ~TimelineItem() { }

        TimelineItem* previous() const { return m_previous.get(); }

        PassOwnPtr<TimelineItem*> releasePrevious() { return m_previous.release(); }

        void addToTimeline(InspectorFrontend*);

        void addChildItem(PassOwnPtr<TimelineItem>);

        void setEndTime(double endTime) { m_endTime = endTime; }

        TimelineItemType type() { return m_itemType; }
    protected:
        virtual ScriptObject convertToScriptObject(InspectorFrontend*);

        ScriptArray convertChildrenToScriptArray(InspectorFrontend*);
      
    private:
        double m_startTime;
        double m_endTime;
        TimelineItemType m_itemType;
        OwnPtr<TimelineItem> m_previous;
        TimelineItems m_children;
    };

} // namespace WebCore

#endif // !defined(TimelineItem_h)
