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<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=597331
-->
<head>
  <title>Test for Bug 597331</title>
  <script src="/tests/SimpleTest/SimpleTest.js"></script>
  <script src="/tests/SimpleTest/EventUtils.js"></script>
  <script src="/tests/SimpleTest/WindowSnapshot.js"></script>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
  <style>
  textarea { border-color: white; }
  </style>
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=597331">Mozilla Bug 597331</a>
<p id="display"></p>
<div id="content">
<textarea>line1
line2
line3
</textarea>
</div>
<pre id="test">
<script type="application/javascript">

/** Test for Bug 597331 **/

SimpleTest.waitForExplicitFinish();
addLoadEvent(function() {
  SimpleTest.executeSoon(function() {
    var t = document.querySelector("textarea");
    t.focus();
    t.selectionStart = 4;
    t.selectionEnd = 4;
    SimpleTest.executeSoon(function() {
      t.getBoundingClientRect(); // flush layout
      var before = snapshotWindow(window, true);
      t.selectionStart = 5;
      t.selectionEnd = 5;
      t.addEventListener("keydown", function() {
        SimpleTest.executeSoon(function() {
          t.style.display = "block";
          document.body.offsetWidth;
          t.style.display = "";
          document.body.offsetWidth;

          is(t.selectionStart, 4, "Cursor should be moved correctly");
          is(t.selectionEnd, 4, "Cursor should be moved correctly");

          var after = snapshotWindow(window, true);

          var result = compareSnapshots(before, after, true);
          var msg = "The caret should be displayed correctly after reframing";
          if (!result[0]) {
            msg += "\nRESULT:\n" + result[2];
            msg += "\nREFERENCE:\n" + result[1];
          }
          ok(result[0], msg);

          SimpleTest.finish();
        });
      }, {once: true});
      synthesizeKey("KEY_ArrowLeft");
    });
  });
});

</script>
</pre>
</body>
</html>