Quelle test_bug635465.html Sprache: HTML

products/Sources/formale Sprachen/C/Firefox/dom/events/test/test_bug635465.html

<!DOCTYPE HTML>
<html>

<head>
  <meta charset="utf-8">
  <title>Test for Bug 635465</title>
  <script src="/tests/SimpleTest/SimpleTest.js"></script>
  <script src="/tests/SimpleTest/EventUtils.js"></script>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
  <style type="text/css">
      #item {
        position: relative;
      }
      .s-menu-section-submenu {
        position: absolute;
        display: none;
      }
      .open .s-menu-section-submenu {
        display: block;
      }
</style>
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=635465">Mozilla Bug 635465</a>
<div id="display">
  <div class="item" id="item"
       onmouseover="showSubmenu(event)" onmouseout="hideSubmenu(event)">
    <a href="#" id="firsthover">Hover me</a>
    <div class="s-menu-section-submenu" id="menu">
      <a href="#" id="secondhover">Now hover me</a>
    </div>
  </div>
</div>
<div id="content" style="display: none">

</div>
<pre id="test">
<script type="application/javascript">

/** Test for Bug 635465 **/
function showSubmenu(event) {
  var item = document.getElementById('item');

  var width = item.offsetWidth;   // IT WORKS IF YOU REMOVE THIS LINE

  item.className='open';
}

function hideSubmenu(event) {
  document.getElementById('item').className='';
}

SimpleTest.waitForExplicitFinish();

function executeTests() {
  // First flush out layout of firsthover
  ok($("firsthover").getBoundingClientRect().height > 0,
     "Should have a nonzero height before hover");

  // Now trigger a mouseover on firsthover
  synthesizeMouseAtCenter($("firsthover"), { type: "mousemove" });

  ok($("secondhover").getBoundingClientRect().height > 0,
     "Should have a nonzero height for submenu after hover");

  // Now determine where secondhover is hanging out
  var rect = $("secondhover").getBoundingClientRect();
  synthesizeMouseAtCenter($("secondhover"), { type: "mousemove" });

  // And another mouseover one pixel to the right of where the center used to be
  synthesizeMouseAtPoint(rect.left + rect.width/2 + 1,
                         rect.top + rect.height/2,
                         { type: "mousemove" });

  ok($("secondhover").getBoundingClientRect().height > 0,
     "Should have a nonzero height for submenu after second hover");

  // And check computed display of the menu
  is(getComputedStyle($("menu"), "").display, "block", "Should have block display");

  SimpleTest.finish();
}

SimpleTest.waitForFocus(executeTests);
</script>
</pre>
</body>
</html>

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