gecko-dev/testing/web-platform/tests/pointerevents/pointerevent_lostpointercap...

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<html>
    <head>
        <title>Lostpointercapture triggers first and asynchronously</title>
        <meta name="assert" content="TA5.2.10: A user agent must fire a pointer event named lostpointercapture after pointer capture is released for a pointer. This event must be fired prior to any subsequent events for the pointer after capture was released. This event is fired at the element from which pointer capture was removed;">
        <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>
    </head>
    <body onload="run()">
        <h1>Pointer Events capture test - lostpointercapture order</h1>
        <h4>
            Test Description:
            This test checks if lostpointercapture is handled asynchronously and prior to all subsequent events.
            Complete the following actions:
            <ol>
                <li>Press and hold left mouse button over "Set Capture" button and move a little. "gotpointercapture" should be logged inside of the black rectangle
                <li>"lostpointercapture" should be logged inside of the black rectangle after pointerup
            </ol>
        </h4>
        Test passes if lostpointercapture is dispatched after releasing the mouse button and before any additional pointer events.
        <div id="target0" style="background:black; color:white"></div>
        <br>
        <input type="button" id="btnCapture" value="Set Capture">
        <script type='text/javascript'>
            var detected_pointertypes = {};
            var detected_pointerEvents = new Array();
            var pointerdown_event = null;
            var firstPointermoveReceived = false; // To handle the first pointermove right after gotpointercapture which gotpointercapture was sent right before it.
            var firstPointeroverReceived = false; // To handle the first pointerover right after gotpointercapture which gotpointercapture was sent right before it.
            var firstPointerenterReceived = false; // To handle the first pointeenter right after gotpointercapture which gotpointercapture was sent right before it.

            var test_pointerEvent = async_test("lostpointercapture is dispatched prior to subsequent events"); // set up test harness

            var isPointerCapture = false;
            var count=0;

            var testStarted = false;
            var eventRcvd = false;
            var isAsync = false;
            var event_log = [];

            add_completion_callback(end_of_test);
            function end_of_test() {
                showLoggedEvents();
                showPointerTypes();
            }

            var target0 = document.getElementById('target0');
            var captureButton = document.getElementById('btnCapture');

            function run() {
                on_event(captureButton, 'pointerdown', function(event) {
                    detected_pointertypes[event.pointerType] = true;
                    pointerdown_event = event;
                    if(isPointerCapture == false) {
                        isPointerCapture = true;
                        captureButton.value = 'Release Capture';
                        sPointerCapture(event);
                    }
                });

                // TA5.1.3.1: Process Pending Pointer Capture
                // Whenever a user agent is to fire a Pointer Event that is not gotpointercapture or lostpointercapture,
                // it must first run the steps of processing pending pointer capture
                //
                // TA5.2.12: The lostpointercapture event
                // After pointer capture is released for a pointer, and prior to any subsequent events for the pointer,
                // the lostpointercapture event must be dispatched to the element from which pointer capture was removed.
                // listen to all events
                for (var i = 0; i < All_Pointer_Events.length; i++) {
                    on_event(target0, All_Pointer_Events[i], function (event) {
                        // if the event was gotpointercapture, just log it and return
                        if (event.type == "gotpointercapture") {
                            testStarted = true;
                            rPointerCapture(event);
                            isAsync = true;
                            event_log.push('gotpointercapture@target0');
                            return;
                        }
                        else if (event.type == "lostpointercapture") {
                            event_log.push('lostpointercapture@target0');
                            captureButton.value = 'Set Capture';
                            isPointerCapture = false;

                            // TA: 11.2
                            test_pointerEvent.step(function () {
                                assert_true(isAsync, "lostpointercapture must be fired asynchronously");
                             });

                            // if any events except pointerup have been received with same pointerId before lostpointercapture, then fail
                            var eventsRcvd_str = "";
                            if (eventRcvd) {
                                eventsRcvd_str = "Events received before lostpointercapture: ";
                                for (var i = 0; i < detected_pointerEvents.length; i++) {
                                    eventsRcvd_str += detected_pointerEvents[i] + ", ";
                                }
                            }
                            test_pointerEvent.step(function () {
                                assert_false(eventRcvd, "no other events should be received before lostpointercapture." + eventsRcvd_str);
                                assert_equals(event.pointerId, pointerdown_event.pointerId, "pointerID is same for pointerdown and lostpointercapture");
                            });
                            test_pointerEvent.done(); // complete test
                        }
                        else {
                            if (testStarted && pointerdown_event != null && pointerdown_event.pointerId === event.pointerId) {
                                if (event.type == "pointermove" && !firstPointermoveReceived) {
                                  firstPointermoveReceived = true;
                                }
                                else if (event.type == "pointerenter" && !firstPointerenterReceived) {
                                  firstPointerenterReceived = true;
                                }
                                else if (event.type == "pointerover" && !firstPointeroverReceived) {
                                  firstPointeroverReceived = true;
                                }
                                else if (event.type != "pointerup") {
                                    detected_pointerEvents.push(event.type);
                                    eventRcvd = true;
                                }
                            }
                        }
                    });
                }
            }
        </script>
        <h1>Pointer Events Capture Test</h1>
        <div id="complete-notice">
            <p>The following pointer types were detected: <span id="pointertype-log"></span>.</p>
            <p>The following events were logged: <span id="event-log"></span>.</p>
        </div>
        <div id="log"></div>
    </body>
</html>