<!DOCTYPE html>
<html>
<head>
<style>
.scrollable_region {
    width: 680px;
}

.table td, .table th {
    padding: 2px;
}

.table th {
    height: 20px;
    text-align: left;
    font-weight: strong;
}

.table tr:nth-child(odd) {
    background: #f3f3f3;
}

.scrollable_select option:nth-child(odd) {
    background: #f3f3f3;
}

</style>
<script src="../../../resources/js-test-pre.js"></script>
<script>
function onLoad() {
    setupTopLevel();
}
</script>
</head>
<body onload="onLoad();">
<script>

var wrapperTarget;
var divTarget;
var pageScrollPositionBefore;
var wrapperScrollPositionBefore;
var divScrollPositionBefore;
var continueCount = 5;

function checkForSecondScroll() {
    // 'parent' should have scrolled, the content of 'target' should
    // not have scrolled, and 'wrapper' should not have scrolled.
    var pageScrollPositionAfter = document.scrollingElement.scrollTop;
    var wrapperScrollPositionAfter = wrapperTarget.scrollTop;
    var divScrollPositionAfter = divTarget.scrollTop;

    debug("Second scroll event:");
    if (pageScrollPositionBefore != pageScrollPositionAfter)
        testPassed("Page received wheel events during the second gesture.");
    else
        testFailed("Page did not receive wheel events during the second gesture.");

    if (wrapperScrollPositionBefore != wrapperScrollPositionAfter)
        testFailed("Wrapper received wheel events during the second gesture.");
    else
        testPassed("Wrapper did not receive wheel events during the second gesture.");

    if (divScrollPositionBefore != divScrollPositionAfter)
        testFailed("div received wheel events during the second gesture.");
    else
        testPassed("div did not receive wheel events during the second gesture.");

    testRunner.notifyDone();
}

function checkForFirstScroll() {
    // 'parent' should not have scrolled, and the content of 'target' should
    // not have moved. However, 'wrapper' should have moved.
    var pageScrollPositionAfter = document.scrollingElement.scrollTop;
    var wrapperScrollPositionAfter = wrapperTarget.scrollTop;
    var divScrollPositionAfter = divTarget.scrollTop;

    debug("First scroll event:");
    if (pageScrollPositionBefore != pageScrollPositionAfter)
        testFailed("Page received wheel events during the first gesture.");
    else
        testPassed("Page did not receive wheel events during the first gesture.");

    if (wrapperScrollPositionBefore != wrapperScrollPositionAfter)
        testPassed("Wrapper received wheel events during the first gesture.");
    else
        testFailed("Wrapper did not receive wheel events during the first gesture.");

    if (divScrollPositionBefore != divScrollPositionAfter)
        testFailed("div received wheel events during the first gesture.");
    else
        testPassed("div did not receive wheel events during the first gesture.");

    wrapperScrollPositionBefore = wrapperTarget.scrollTop;

    eventSender.mouseScrollByWithWheelAndMomentumPhases(0, -1, 'began', 'none');
    eventSender.mouseScrollByWithWheelAndMomentumPhases(0, -1, 'changed', 'none');
    eventSender.mouseScrollByWithWheelAndMomentumPhases(0, -1, 'changed', 'none');
    eventSender.mouseScrollByWithWheelAndMomentumPhases(0, 0, 'ended', 'none');
    eventSender.mouseScrollByWithWheelAndMomentumPhases(0, -1, 'none', 'begin');
    eventSender.mouseScrollByWithWheelAndMomentumPhases(0, -1, 'none', 'continue');
    eventSender.mouseScrollByWithWheelAndMomentumPhases(0, 0, 'none', 'end');
    // The timeout used to be only 100, but when we added support for rubber-banding in overflow
    // areas, we found we had to increase the timeout to allow the rubber-band to finish.
    setTimeout(checkForSecondScroll, 1000);
}

function scrollTest() {
    // See where our IFrame lives:
    pageScrollPositionBefore = document.scrollingElement.scrollTop;

    divTarget = document.getElementById('target');
    divTarget.scrollTop = divTarget.scrollHeight - divTarget.clientHeight - 100;

    divScrollPositionBefore = divTarget.scrollTop;

    wrapperTarget = document.getElementById('wrapper');
    wrapperScrollPositionBefore = wrapperTarget.scrollTop;
    debug("wrapperTarget = " + wrapperTarget);

    // Move mouse to a position to the right side of the table, and near the bottom.
    var startPosX = divTarget.offsetLeft + divTarget.clientWidth + 50;
    var startPosY = Math.round(divTarget.offsetTop) - 42; // One wheel turn before end.
    eventSender.mouseMoveTo(startPosX, startPosY); // Make sure we are just outside the iFrame
    eventSender.mouseScrollByWithWheelAndMomentumPhases(0, -1, 'began', 'none');
    eventSender.mouseScrollByWithWheelAndMomentumPhases(0, -1, 'changed', 'none');
    eventSender.mouseScrollByWithWheelAndMomentumPhases(0, -1, 'changed', 'none');
    eventSender.mouseScrollByWithWheelAndMomentumPhases(0, 0, 'ended', 'none');
    eventSender.mouseScrollByWithWheelAndMomentumPhases(0, -5, 'none', 'begin');
    eventSender.mouseScrollByWithWheelAndMomentumPhases(0, -10, 'none', 'continue');
    eventSender.mouseScrollByWithWheelAndMomentumPhases(0, 0, 'none', 'end');
    // The timeout used to be only 100, but when we added support for rubber-banding in overflow
    // areas, we found we had to increase the timeout to allow the rubber-band to finish.
    setTimeout(checkForFirstScroll, 1000);
}

function setupTopLevel() {

    if (window.eventSender) {
        testRunner.waitUntilDone();

        setTimeout(scrollTest, 1000);
    } else {
        var messageLocation = document.getElementById('parent');
        var message = document.createElement('div');
        message.innerHTML = "<p>This test is better run under DumpRenderTree. To manually test it, place the mouse pointer<br/>"
            + "at the top of the page, and then use the mouse wheel or a two-finger swipe to scroll the<br/>"
            + "down past the div.<br/><br/>"
            + "You should not see the row of END labels if this test is successful.</p>";
        messageLocation.appendChild(message);
    }
}

</script>
<div id="parent" style="height: 2000px; width: 800px;">
    <div id="wrapper" style='overflow-y: auto; overflow-x: hidden; max-height: 600px;'>
        <div id="source" style="height: 100px; width: 600px;">
            Put mouse next to the table labeled 'Scrollable Region' and flick downward. The scroll movement
            should come to a halt. Then flick again. The overall page should scroll.
        </div>
        <div class="scrollable_region">
            <h3>Scrollable Region</h3>
            <div id="target" style='overflow-y: auto; overflow-x: hidden; max-height: 485.55px;'>
                <table class="table" style='width: 99%'>
                    <tr><th>Count</th><th>DATA</th><th>Rev Count</th></tr>
                    <tr><td>TOP TOP TOP TOP TOP</td><td>TOP TOP TOP TOP TOP</td><td>TOP TOP TOP TOP TOP</td></tr>
                    <tr><td>1</td><td>0.1100</td><td>40</td></tr>
                    <tr><td>2</td><td>0.1155</td><td>39</td></tr>
                    <tr><td>3</td><td>0.2200</td><td>38</td></tr>
                    <tr><td>4</td><td>0.2255</td><td>37</td></tr>
                    <tr><td>5</td><td>0.3300</td><td>36</td></tr>
                    <tr><td>6</td><td>0.3355</td><td>35</td></tr>
                    <tr><td>7</td><td>0.4400</td><td>34</td></tr>
                    <tr><td>8</td><td>0.4455</td><td>33</td></tr>
                    <tr><td>9</td><td>0.5500</td><td>32</td></tr>
                    <tr><td>10</td><td>0.5555</td><td>31</td></tr>
                    <tr><td>11</td><td>0.6600</td><td>30</td></tr>
                    <tr><td>12</td><td>0.6655</td><td>29</td></tr>
                    <tr><td>13</td><td>0.7700</td><td>28</td></tr>
                    <tr><td>14</td><td>0.7755</td><td>27</td></tr>
                    <tr><td>15</td><td>0.8800</td><td>26</td></tr>
                    <tr><td>16</td><td>0.8855</td><td>25</td></tr>
                    <tr><td>17</td><td>0.9900</td><td>24</td></tr>
                    <tr><td>18</td><td>0.9955</td><td>23</td></tr>
                    <tr><td>19</td><td>0.9999</td><td>22</td></tr>
                    <tr><td>20</td><td>1.0000</td><td>21</td></tr>
                    <tr><td>21</td><td>1.0000</td><td>20</td></tr>
                    <tr><td>22</td><td>0.9999</td><td>19</td></tr>
                    <tr><td>23</td><td>0.9955</td><td>18</td></tr>
                    <tr><td>24</td><td>0.9900</td><td>17</td></tr>
                    <tr><td>25</td><td>0.8855</td><td>16</td></tr>
                    <tr><td>26</td><td>0.8800</td><td>15</td></tr>
                    <tr><td>27</td><td>0.7755</td><td>14</td></tr>
                    <tr><td>28</td><td>0.7700</td><td>13</td></tr>
                    <tr><td>29</td><td>0.6655</td><td>12</td></tr>
                    <tr><td>30</td><td>0.6600</td><td>11</td></tr>
                    <tr><td>31</td><td>0.5555</td><td>10</td></tr>
                    <tr><td>32</td><td>0.5500</td><td>9</td></tr>
                    <tr><td>33</td><td>0.4455</td><td>8</td></tr>
                    <tr><td>34</td><td>0.4400</td><td>7</td></tr>
                    <tr><td>35</td><td>0.3355</td><td>6</td></tr>
                    <tr><td>36</td><td>0.3300</td><td>5</td></tr>
                    <tr><td>37</td><td>0.2255</td><td>4</td></tr>
                    <tr><td>38</td><td>0.2200</td><td>3</td></tr>
                    <tr><td>39</td><td>0.1155</td><td>2</td></tr>
                    <tr><td>40</td><td>0.1100</td><td>1</td></tr>
                    <tr><td>END END END END END</td><td>END END END END END</td><td>END END END END END</td></tr>
                </table>
            </div>
            <div id="bottom" style="height: 100px; width: 600px;">
                <p>A set of information at the bottom of the table.</p>
            </div>
        </div>
    </div>
</div>
<div id="console"></div>
<script>
description("Tests that a scrollable div nested inside another scrollable div properly handles wheel events under sub-pixel conditions.");
</script>
<script src="../../../resources/js-test-post.js"></script>
</body>
</html>