/*
 * Copyright (C) 2013 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.
 */

/* These keyframes try to reproduce the 12 discrete steps seen in a standard system progress indicator. */
@keyframes discrete-spinner {
    0% {
        background-image: url(http://code.qt.io/Images/IndeterminateProgressSpinner1.svg);
    }

    8.333% {
        background-image: url(http://code.qt.io/Images/IndeterminateProgressSpinner2.svg);
    }

    16.666% {
        background-image: url(http://code.qt.io/Images/IndeterminateProgressSpinner3.svg);
    }

    25.000% {
        background-image: url(http://code.qt.io/Images/IndeterminateProgressSpinner4.svg);
    }

    33.333% {
        background-image: url(http://code.qt.io/Images/IndeterminateProgressSpinner5.svg);
    }

    41.666% {
        background-image: url(http://code.qt.io/Images/IndeterminateProgressSpinner6.svg);
    }

    50.000% {
        background-image: url(http://code.qt.io/Images/IndeterminateProgressSpinner7.svg);
    }

    58.333% {
        background-image: url(http://code.qt.io/Images/IndeterminateProgressSpinner8.svg);
    }

    66.666% {
        background-image: url(http://code.qt.io/Images/IndeterminateProgressSpinner9.svg);
    }

    75.000% {
        background-image: url(http://code.qt.io/Images/IndeterminateProgressSpinner10.svg);
    }

    83.333% {
        background-image: url(http://code.qt.io/Images/IndeterminateProgressSpinner11.svg);
    }

    91.666% {
        background-image: url(http://code.qt.io/Images/IndeterminateProgressSpinner12.svg);
    }

    100% {
        background-image: url(http://code.qt.io/Images/IndeterminateProgressSpinner1.svg);
    }
}

.indeterminate-progress-spinner {
    background-image: url(http://code.qt.io/Images/IndeterminateProgressSpinner1.svg);
    background-repeat: no-repeat;
    background-size: 100% 100%;

    width: 16px;
    height: 16px;

    animation-name: discrete-spinner;
    animation-duration: 1s;
    animation-iteration-count: infinite;
    animation-timing-function: step-start;
}