SSL test_mouse_double_click_on_android.html Sprache: HTML

products/sources/formale Sprachen/C/Firefox/widget/tests/test_mouse_double_click_on_android.html

<!DOCTYPE html>

<html>
<head>
<meta charset="utf-8" />
<title>Test to fire dblclick event by Android's widget level
<script src="/tests/SimpleTest/EventUtils.js"></script>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css">
<style>
#target {
  width: 100px;
  height: 100px;
  background-color: blue;
  user-select: none;
}
</style>
<script>
"use strict";
// If this test runs repeatedly, we have to reset internal double click state
// to detect double click correctly.
function resetMouseState() {
  const target = document.getElementById("target");
  const promise =
    new Promise(resolve => target.addEventListener("click", resolve, { once: true }));

  synthesizeNativeMouseEvent({
    type: "mousedown",
    target,
    offsetX: 30,
    offsetY: 10,
  });

  synthesizeNativeMouseEvent({
    type: "mouseup",
    target,
    offsetX: 30,
    offsetY: 10,
  });

  return promise;
}

add_task(async function test_fire_dblclick() {
  // Don't use min time for double click to reduce execution time.
  // Also, we cannot make a min time on parent process since
  // synthesizeNativeMouseEvent is called on child process.
  await SpecialPowers.pushPrefEnv({
    set: [["widget.double-click.min", -1]],
  });

  await SimpleTest.promiseFocus();
  await resetMouseState();

  const target = document.getElementById("target");
  let click = 0;
  target.addEventListener("click", () => {
    info("click event is received");
    click++;
  });

  const promise = new Promise(resolve => {
    target.addEventListener("dblclick", e => {
      resolve();
      e.preventDefault();
    }, { once: true });
  });

  for (let i = 0; i < 2; i++) {
    synthesizeNativeMouseEvent({
      type: "mousedown",
      target,
      offsetX: 10,
      offsetY: 10,
      button: 0,
    });

    synthesizeNativeMouseEvent({
      type: "mouseup",
      target,
      offsetX: 10,
      offsetY: 10,
      button: 0,
    });
  }

  await promise;

  is(click, 2, "Click event is twice");

  await SpecialPowers.popPrefEnv();
});

add_task(async function test_fire_no_dblclick() {
  await SimpleTest.promiseFocus();
  await resetMouseState();

  let click = 0;
  let dblclick = 0;

  const target = document.getElementById("target");
  const promise = new Promise(resolve => {
    target.addEventListener("click", () => {
      info("click event is received");
      click++;
      if (click == 2) {
        resolve();
      }
    });
  })
  target.addEventListener("dblclick", () => {
    info("dblclick event is received");
    dblclick++
  });

  // no delay means that dblclick isn't fired.
  for (let i = 0; i < 2; i++) {
    synthesizeNativeMouseEvent({
      type: "mousedown",
      target,
      offsetX: 10,
      offsetY: 10,
      button: 0,
    });

    synthesizeNativeMouseEvent({
      type: "mouseup",
      target,
      offsetX: 10,
      offsetY: 10,
      button: 0,
    });
  }

  await promise;

  // This test is that dblclick isn't fired when each click is no delayed.
  // So we need to spin event loop to check whether dblclick is fired.
  await new Promise(resolve => window.requestAnimationFrame(resolve));

  is(click, 2, "Click event is twice");
  is(dblclick, 0, "No double click event is fired");
});

</script>
</head>
<body>
<div id="target"></div>
</body>
</html>

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