Source/WebCore/dom/IdleCallbackController.cpp

/*
 * Copyright (C) 2019 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
 *    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.
 */

#include "config.h"
#include "IdleCallbackController.h"

namespace WebCore {

int IdleCallbackController::queueIdleCallback(Ref<IdleRequestCallback>&& callback, Seconds)
{
    ++m_idleCallbackIdentifier;
    auto handle = m_idleCallbackIdentifier;

    m_idleRequests.append({ handle, WTFMove(callback) });

    // FIXME: Queue a task if start_idle_period is true.
    // FIXME: Queue a task if timeout is positive.

    return handle;
}

void IdleCallbackController::removeIdleCallback(int signedIdentifier)
{
    if (signedIdentifier <= 0)
        return;
    unsigned identifier = signedIdentifier;
    m_idleRequests.removeFirstMatching([identifier](auto& request) {
        return request.identifier == identifier;
    });
}

} // namespace WebCore