Quelle test_bug915962.html Sprache: HTML

products/Sources/formale Sprachen/C/Firefox/editor/libeditor/tests/test_bug915962.html

<!DOCTYPE HTML>
<html>

<head>
  <title>Test for Bug 915962</title>
  <script src="/tests/SimpleTest/SimpleTest.js"></script>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
  <script src="/tests/SimpleTest/EventUtils.js"></script>
  <script type="text/javascript" src="/tests/gfx/layers/apz/test/mochitest/apz_test_utils.js"></script>
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=915962">Mozilla Bug 915962</a>
<p id="display"></p>
<div id="content">
</div>
<pre id="test">
<script type="application/javascript">

/** Test for Bug 915962 **/

var smoothScrollPref = "general.smoothScroll";
SimpleTest.waitForExplicitFinish();
var win = window.open("file_bug915962.html", "_blank",
                      "width=600,height=600,scrollbars=yes");

function waitForScrollEvent(aWindow) {
  return new Promise(resolve => {
    aWindow.addEventListener("scroll", () => { SimpleTest.executeSoon(resolve); }, {once: true, capture: true});
  });
}

function waitAndCheckNoScrollEvent(aWindow) {
  let gotScroll = false;
  function recordScroll() {
    gotScroll = true;
  }
  aWindow.addEventListener("scroll", recordScroll, {capture: true});
  return waitToClearOutAnyPotentialScrolls(aWindow).then(function() {
        aWindow.removeEventListener("scroll", recordScroll, {capture: true});
        is(gotScroll, false, "check that we didn't get a scroll");
      });
}

SimpleTest.waitForFocus(function() {
  SpecialPowers.pushPrefEnv({"set": [[smoothScrollPref, false]]}, startTest);
}, win);
async function startTest() {
  // Make sure that pressing Space when a tabindex=-1 element is focused
  // will scroll the page.
  var button = win.document.querySelector("button");
  var sc = win.document.querySelector("div");
  sc.focus();
  await waitToClearOutAnyPotentialScrolls(win);
  is(win.scrollY, 0, "Sanity check");
  let waitForScrolling = waitForScrollEvent(win);
  synthesizeKey(" ", {}, win);

  await waitForScrolling;

  isnot(win.scrollY, 0, "Page is scrolled down");
  var oldY = win.scrollY;
  waitForScrolling = waitForScrollEvent(win);
  synthesizeKey(" ", {shiftKey: true}, win);

  await waitForScrolling;

  ok(win.scrollY < oldY, "Page is scrolled up");

  // Make sure that pressing Space when a tabindex=-1 element is focused
  // will not scroll the page, and will activate the element.
  button.focus();
  await waitToClearOutAnyPotentialScrolls(win);
  var clicked = false;
  button.onclick = () => clicked = true;
  oldY = win.scrollY;
  let waitForNoScroll = waitAndCheckNoScrollEvent(win);
  synthesizeKey(" ", {}, win);

  await waitForNoScroll;

  ok(win.scrollY <= oldY, "Page is not scrolled down");
  ok(clicked, "The button should be clicked");
  synthesizeKey("VK_TAB", {}, win);

  await waitToClearOutAnyPotentialScrolls(win);

  oldY = win.scrollY;
  waitForScrolling = waitForScrollEvent(win);
  synthesizeKey(" ", {}, win);

  await waitForScrolling;

  ok(win.scrollY >= oldY, "Page is scrolled down");

  win.close();

  win = window.open("file_bug915962.html", "_blank",
                    "width=600,height=600,scrollbars=yes");

  SimpleTest.waitForFocus(async function() {
    is(win.scrollY, 0, "Sanity check");
    waitForScrolling = waitForScrollEvent(win);
    synthesizeKey(" ", {}, win);

    await waitForScrolling;

    isnot(win.scrollY, 0, "Page is scrolled down without crashing");

    win.close();

    SimpleTest.finish();
  }, win);
}
</script>
</pre>
</body>
</html>

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