Quelle test_mouse_events_after_touchend.html Sprache: HTML

products/Sources/formale Sprachen/C/Firefox/dom/events/test/test_mouse_events_after_touchend.html

<!doctype html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Tests for mouse events after touchend</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<script src="/tests/SimpleTest/EventUtils.js"></script>
<script src="/tests/SimpleTest/paint_listener.js"></script>
<script src="/tests/gfx/layers/apz/test/mochitest/apz_test_utils.js"></script>
<script src="/tests/gfx/layers/apz/test/mochitest/apz_test_native_event_utils.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
<style>
#parent, #child {
  width: 300px;
  height: 64px;
  padding: 16px;
}
#parent {
  background-color: black;
}
#child {
  background-color: gray;
}
</style>
<script>
"use strict";

SimpleTest.waitForExplicitFinish();
SimpleTest.requestFlakyTimeout("Required for waiting to prevent double tap at second tap");
SimpleTest.waitForFocus(async () => {
  function stringifyEvent(event) {
    return `{ type: ${event.type}, target: ${
      event.target.id || event.target.nodeName
    }${
      event.detail !== undefined ? `, detail: ${event.detail}` : ""
    }${
      event.button !== undefined ? `, button: ${event.button}` : ""
    }${
      event.buttons !== undefined ? `, buttons: ${event.buttons}` : ""
    } }`;
  }
  function stringifyEvents(arrayOfEvents) {
    if (!arrayOfEvents.length) {
      return "[]";
    }
    let ret = "";
    for (const event of arrayOfEvents) {
      if (ret === "") {
        ret = "[ ";
      } else {
        ret += ", ";
      }
      ret += stringifyEvent(event);
    }
    return ret + " ]";
  }

  let events = [];
  for (const type of ["mousemove",
                      "mousedown",
                      "mouseup",
                      "click",
                      "dblclick",
                      "contextmenu",
                      "touchend"]) {
    if (type == "touchend") {
      addEventListener(type, event => {
        info(`Received: ${stringifyEvent(event)}`);
        events.push({type, target: event.target});
      }, {capture: true});
    } else {
      addEventListener(type, event => {
        info(`Received: ${stringifyEvent(event)}`);
        events.push({
          type: event.type,
          target: event.target,
          detail: event.detail,
          button: event.button,
          buttons: event.buttons,
        });
      }, {capture: true});
    }
  }

  function shiftEventsBefore(arrayOfEvents, aType) {
    const index = arrayOfEvents.findIndex(event => event.type == aType);
    if (index <= 0) {
      return [];
    }
    let ret = [];
    for (let i = 0; i < index; i++) {
      ret.push(arrayOfEvents.shift());
    }
    return ret;
  }

  const parent = document.getElementById("parent");
  const child = document.getElementById("child");

  function promiseEvent(aType) {
    return new Promise(resolve =>
      addEventListener(aType, resolve, {once: true})
    );
  }

  async function promiseFlushingAPZGestureState() {
    await promiseApzFlushedRepaints();
    // Wait for a while to avoid that the next tap will be treated as 2nd tap of
    // a double tap.
    return new Promise(
      resolve => setTimeout(
        resolve,
        // NOTE: x1.0 is not enough to avoid intermittent failures.
        SpecialPowers.getIntPref("apz.max_tap_time") * 1.2
      )
    );
  }

  await waitUntilApzStable();
  for (const prefValue of [true, false]) {
    await SpecialPowers.pushPrefEnv({
      set: [
        ["test.events.async.enabled", prefValue],
        ["ui.click_hold_context_menus.delay", 15000], // disable long tap
      ]
    });
    const desc = `(test.events.async.enabled=${prefValue})`;

    await (async function test_single_tap() {
      await promiseFlushingAPZGestureState();
      info("test_single_tap: testing...");
      events = [];
      const waitForClick = promiseEvent("click");
      synthesizeTouch(child, 5, 5);
      await waitForClick;
      is(
        stringifyEvents(events),
        stringifyEvents([
          { type: "touchend", target: child },
          { type: "mousemove", target: child, detail: 0, button: 0, buttons: 0 },
          { type: "mousedown", target: child, detail: 1, button: 0, buttons: 1 },
          { type: "mouseup", target: child, detail: 1, button: 0, buttons: 0 },
          { type: "click", target: child, detail: 1, button: 0, buttons: 0 },
        ]),
        `Single tap should cause a click ${desc}`
      );
    })();

    await (async function test_single_tap_with_consuming_pointerdown() {
      await promiseFlushingAPZGestureState();
      info("test_single_tap_with_consuming_pointerdown: testing...");
      events = [];
      const waitForTouchEnd = promiseEvent("click");
      child.addEventListener("pointerdown", event => {
        event.preventDefault();
      }, {once: true});
      synthesizeTouch(child, 5, 5);
      await waitForTouchEnd;
      const result = stringifyEvents(events);
      const expected = stringifyEvents([
        { type: "touchend", target: child },
        { type: "click", target: child, detail: 1, button: 0, buttons: 0 },
      ]);
      // If testing on Windows, the result is really unstable. Let's allow to
      // fail for now.
      (navigator.platform.includes("Win") && result != expected ? todo_is : is)(
        result,
        expected,
        `Single tap should not cause mouse events if pointerdown is consumed, but click event should be fired ${desc}`
      );
    })();

    await (async function test_single_tap_with_consuming_touchstart() {
      await promiseFlushingAPZGestureState();
      info("test_single_tap_with_consuming_touchstart: testing...");
      events = [];
      const waitForTouchEnd = promiseEvent("touchend");
      child.addEventListener("touchstart", event => {
        event.preventDefault();
      }, {once: true});
      synthesizeTouch(child, 5, 5);
      await waitForTouchEnd;
      const result = stringifyEvents(events);
      const expected = stringifyEvents([{ type: "touchend", target: child }]);
      // If testing this with APZ, the result is really unstable. Let's allow to
      // fail for now.
      (prefValue && result != expected ? todo_is : is)(
        result,
        expected,
        `Single tap should not cause mouse events if touchstart is consumed ${desc}`
      );
    })();

    await (async function test_single_tap_with_consuming_touchend() {
      await promiseFlushingAPZGestureState();
      info("test_single_tap_with_consuming_touchend: testing...");
      events = [];
      const waitForTouchEnd = promiseEvent("touchend");
      child.addEventListener("touchend", event => {
        event.preventDefault();
      }, {once: true});
      synthesizeTouch(child, 5, 5);
      await waitForTouchEnd;
      is(
        stringifyEvents(shiftEventsBefore(events)),
        stringifyEvents([]),
        `test_single_tap_with_consuming_touchstart() shouldn't cause mouse events after touchend`
      )
      is(
        stringifyEvents(events),
        stringifyEvents([
          { type: "touchend", target: child },
        ]),
        `Single tap should not cause mouse events if touchend is consumed ${desc}`
      );
    })();

    await (async function test_multi_touch() {
      await promiseFlushingAPZGestureState();
      events = [];
      info("test_multi_touch: testing...");
      const waitForTouchEnd = new Promise(resolve => {
        let count = 0;
        function onTouchEnd(event) {
          if (++count == 2) {
            removeEventListener("touchend", onTouchEnd, {capture: true});
            requestAnimationFrame(() => requestAnimationFrame(resolve));
          }
        }
        addEventListener("touchend", onTouchEnd, {capture: true});
      });
      synthesizeTouch(child, [5, 25], 5);
      await waitForTouchEnd;
      is(
        stringifyEvents(shiftEventsBefore(events)),
        stringifyEvents([]),
        `test_single_tap_with_consuming_touchend() shouldn't cause mouse events after touchend`
      )
      is(
        stringifyEvents(events),
        stringifyEvents([
          { type: "touchend", target: child },
          { type: "touchend", target: child },
        ]),
        `Multiple touch should not cause mouse events ${desc}`
      );
    })();

    // FIXME: Add long tap tests which won't frequently fail.
  }
  SimpleTest.finish();
});
</script>
</head>
<body><div id="parent"><div id="child"></div></div></body>
</html>

Messung V0.5

¤ Dauer der Verarbeitung: 0.26 Sekunden (vorverarbeitet) ¤

Wurzel

Suchen

Beweissystem der NASA

Beweissystem Isabelle

NIST Cobol Testsuite

Cephes Mathematical Library

Wiener Entwicklungsmethode

Haftungshinweis

Die Informationen auf dieser Webseite wurden nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit, noch Qualität der bereit gestellten Informationen zugesichert.

Bemerkung:

Die farbliche Syntaxdarstellung und die Messung sind noch experimentell.