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https://github.com/web-platform-tests/wpt
26 December 2018, 22:31:15 UTC
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Tip revision: e0169332c3bf5d25aafa38786026a0a86ae4a55a authored by Chris Harrelson on 24 December 2018, 21:55:55 UTC
Move visual overflow computation into the descendant-dependent tree walk.
Tip revision: e016933
pointerevent_touch-action-pan-y-css_touch-manual.html 
<!doctype html>
<html>
    <head>
        <title>touch-action: pan-y</title>
        <meta name="assert" content="TA15.4 - With `touch-action: pan-y` on a swiped or click/dragged element, only panning in the y-axis should be possible.">
        <meta name="viewport" content="width=device-width">
        <link rel="stylesheet" type="text/css" href="pointerevent_styles.css">
        <script src="/resources/testharness.js"></script>
        <script src="/resources/testharnessreport.js"></script>
        <script src="pointerevent_support.js"></script>
        <style>
            #target0 {
            width: 700px;
            height: 430px;
            touch-action: pan-y;
            }
        </style>
    </head>
    <body onload="run()">
        <h1>Pointer Events touch-action attribute support</h1>
        <h4 id="desc">Test Description: Try to scroll element DOWN then RIGHT. Tap Complete button under the rectangle when done. Expected: only pans in y direction.</h4>
        <p>Note: this test is for touch-devices only</p>
        <div id="target0">
            <p>
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                nonummy nibh euismod tincidunt ut lacreet dolore magna aliguam erat volutpat.
                Ut wisis enim ad minim veniam, quis nostrud exerci tution ullamcorper suscipit
                lobortis nisl ut aliquip ex ea commodo consequat.
            </p>
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                nonummy nibh euismod tincidunt ut lacreet dolore magna aliguam erat volutpat.
                Ut wisis enim ad minim veniam, quis nostrud exerci tution ullamcorper suscipit
                lobortis nisl ut aliquip ex ea commodo consequat.
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                Ut wisis enim ad minim veniam, quis nostrud exerci tution ullamcorper suscipit
                lobortis nisl ut aliquip ex ea commodo consequat.
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            <p>
                Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diem
                nonummy nibh euismod tincidunt ut lacreet dolore magna aliguam erat volutpat.
                Ut wisis enim ad minim veniam, quis nostrud exerci tution ullamcorper suscipit
                lobortis nisl ut aliquip ex ea commodo consequat.
            </p>
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        </div>
        <input type="button" id="btnComplete" value="Complete test">
        <script type='text/javascript'>
            var detected_pointertypes = {};
            var test_touchaction = async_test("touch-action attribute test");
            add_completion_callback(showPointerTypes);

            function run() {
                var target0 = document.getElementById("target0");
                var btnComplete = document.getElementById("btnComplete");

                // Check if "touch-action: pan-y" attribute works properly
                //TA: 15.4
                on_event(btnComplete, 'click', function(event) {
                    detected_pointertypes[event.pointerType] = true;
                    test_touchaction.step(function() {
                        assert_equals(target0.scrollLeft, 0, "scroll x offset should be 0 in the end of the test");
                        assert_not_equals(target0.scrollTop, 0, "scroll y offset should not be 0 in the end of the test");
                    });
                    test_touchaction.done();
                    updateDescriptionComplete();
                });
            }
        </script>
        <h1>touch-action: pan-y</h1>
        <div id="complete-notice">
            <p>The following pointer types were detected: <span id="pointertype-log"></span>.</p>
        </div>
        <div id="log"></div>
    </body>
</html>
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