third_party/web_platform_tests/pointerevents/pointerevent_change-touch-action-onpointerdown_touch-manual.html

<!doctype html>
<html>
    <head>
        <title>Change touch-action on pointerdown</title>
        <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 {
            background: black;
            width: 700px;
            height: 430px;
            color: white;
            overflow-y: auto;
            overflow-x: auto;
            white-space: nowrap;
            }
        </style>
    </head>
    <body onload="run()">
        <h1>Pointer Events touch-action attribute support</h1>
        <h4>Test Description: Press and hold your touch. Try to scroll text in any direction.
            Then release your touch and try to scroll again. Expected: no panning.
        </h4>
        <p>Note: this test is for touch-devices only</p>
        <div id="target0" style="touch-action: auto;">
            <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>
            <p>Lorem ipsum dolor sit amet...</p>
            <p>Lorem ipsum dolor sit amet...</p>
            <p>Lorem ipsum dolor sit amet...</p>
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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>
            <p>Lorem ipsum dolor sit amet...</p>
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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>
            <p>Lorem ipsum dolor sit amet...</p>
            <p>Lorem ipsum dolor sit amet...</p>
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            <p>Lorem ipsum dolor sit amet...</p>
            <p>Lorem ipsum dolor sit amet...</p>
            <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>
            <p>Lorem ipsum dolor sit amet...</p>
            <p>Lorem ipsum dolor sit amet...</p>
            <p>Lorem ipsum dolor sit amet...</p>
            <p>Lorem ipsum dolor sit amet...</p>
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            <p>Lorem ipsum dolor sit amet...</p>
            <p>Lorem ipsum dolor sit amet...</p>
        </div>
        <script type='text/javascript'>
            var detected_pointertypes = {};

            var styleIsChanged = false;
            var scrollIsReceived = false;
            var firstTouchCompleted = false;
            var countToPass = 50;
            var xScr0, yScr0, xScr1, yScr1;

            setup({ explicit_done: true });
            add_completion_callback(showPointerTypes);

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

                on_event(target0, 'scroll', function(event) {
                    if(!scrollIsReceived && firstTouchCompleted) {
                        test(function() {
                            failOnScroll();
                        }, "scroll was received while shouldn't");
                        scrollIsReceived = true;
                    }
                    done();
                });

                on_event(target0, 'pointerdown', function(event) {
                    detected_pointertypes[event.pointerType] = true;
                    if(!styleIsChanged) {
                        var before = document.getElementById('target0').style.touchAction;

                        document.getElementById('target0').style.touchAction = 'none';

                        var after = document.getElementById('target0').style.touchAction;

                        test(function() {
                            assert_true(before != after, "touch-action was changed");
                        }, "touch-action was changed");

                        styleIsChanged = true;
                    }
                });

                on_event(target0, 'pointerup', function(event) {
                    firstTouchCompleted = true;
                });
            }
        </script>
        <h1>touch-action: auto to none</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>