/*
 * Copyright (C) 2011 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:
 * 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.
 */

#ifndef CCScheduler_h
#define CCScheduler_h

#include <wtf/Noncopyable.h>
#include <wtf/PassOwnPtr.h>

namespace WebCore {

class CCThread;

class CCSchedulerClient {
public:
    virtual void scheduleBeginFrameAndCommit() = 0;
    virtual void scheduleDrawAndSwap() = 0;

protected:
    virtual ~CCSchedulerClient() { }
};

class CCScheduler {
    WTF_MAKE_NONCOPYABLE(CCScheduler);
public:
    static PassOwnPtr<CCScheduler> create(CCSchedulerClient* client)
    {
        return adoptPtr(new CCScheduler(client));
    }

    void requestAnimate();
    void requestCommit();
    void requestRedraw();

    void didCommit();
    void didDrawAndSwap();
    void didSwapBuffersComplete();
    void didSwapBuffersAbort();

    bool commitPending() const { return m_commitPending; }
    bool redrawPending() const { return m_redrawPending; }

private:
    explicit CCScheduler(CCSchedulerClient*);

    CCSchedulerClient* m_client;

    bool m_commitPending;
    bool m_redrawPending;
};

}

#endif // CCScheduler_h
