/*
 * 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:
 *
 *     * 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.
 */

#pragma once

#include "ActiveDOMCallback.h"
#include "CallbackResult.h"
#include "DOMHighResTimeStamp.h"
#include <wtf/RefCounted.h>
#include <wtf/Seconds.h>

namespace WebCore {

class RequestAnimationFrameCallback : public RefCounted<RequestAnimationFrameCallback>, public ActiveDOMCallback {
public:
    using ActiveDOMCallback::ActiveDOMCallback;

    virtual CallbackResult<void> handleEvent(double highResTimeMs) = 0;

    int m_id;
    bool m_firedOrCancelled;

    // Allow a little more than 60fps to make sure we can at least hit that frame rate.
    static constexpr Seconds fullSpeedAnimationInterval { 15_ms };
    // Allow a little more than 30fps to make sure we can at least hit that frame rate.
    static constexpr Seconds halfSpeedThrottlingAnimationInterval { 30_ms };
    static constexpr Seconds aggressiveThrottlingAnimationInterval { 10_s };
};

} // namespace WebCore