layout/generic/test/test_bug288789.html
author Cosmin Sabou <csabou@mozilla.com>
Thu, 08 Dec 2022 02:27:45 +0200
changeset 645062 58f36d1b73c53785b92ce1c96598826ce536099c
parent 469640 c9c0c6f2eed54a187e124942e53c3660b4cf17d8
permissions -rw-r--r--
Backed out changeset 911f05c487a6 (bug 1800907) for causing assertions on 266445-1.html. CLOSED TREE

<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=288789
-->
<head>
  <title>Test for Bug 288789</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" />
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=288789">Mozilla Bug 288789</a>
<p id="display"></p>
<div id="content">
<textarea id="ta" dir="rtl">

&#x05d0;a&#x05d1;

</textarea>
<textarea id="tb">

abc

</textarea>
</div>
<pre id="test">
<script class="testbody" type="text/javascript">

/** Test for Bug 288789 **/

SimpleTest.waitForExplicitFinish();

// This seems to be necessary because the selection is not set up properly otherwise
setTimeout(test, 0);

function test() {
  var textarea = $("ta");

  function collapse(offset) {
	textarea.selectionStart = offset;
  	textarea.selectionEnd = offset;
  }

  function testRight(offset) {
    synthesizeKey("KEY_ArrowRight");
    is(textarea.selectionStart, offset, "Right movement broken");
  }

  function testLeft(offset) {
    synthesizeKey("KEY_ArrowLeft");
    is(textarea.selectionStart, offset, "Left movement broken");
  }

  textarea.focus();
  collapse(0);
  ok(true, "Testing forward movement in RTL mode");
  for (var i = 0; i < textarea.textContent.length; ++i) {
    if (i == 0) {
      testRight(i);
    }
    if (textarea.textContent[i] == 'a') {
      testLeft(i);
    } else {
      testLeft(i + 1);
    }
    if (i == textarea.textContent.length - 1) {
      testLeft(i + 1);
    }
  }
  ok(true, "Testing backward movement in RTL mode");
  for (var i = textarea.textContent.length; i > 0; --i) {
    if (i == textarea.textContent.length) {
      testLeft(i);
    }
    if (i > 0 && textarea.textContent[i - 1] == 'a') {
      testRight(i);
    } else {
      testRight(i - 1);
    }
    if (i == 1) {
      testRight(i - 1);
    }
  }

  textarea = $("tb");
  textarea.focus();
  collapse(0);
  ok(true, "Testing forward movement in LTR mode");
  for (var i = 0; i < textarea.textContent.length; ++i) {
    if (i == 0) {
      testLeft(i);
    }
    testRight(i + 1);
    if (i == textarea.textContent.length - 1) {
      testRight(i + 1);
    }
  }
  ok(true, "Testing backward movement in LTR mode");
  for (var i = textarea.textContent.length; i > 0; --i) {
    if (i == textarea.textContent.length) {
      testRight(i);
    }
    testLeft(i - 1);
    if (i == 1) {
      testLeft(i - 1);
    }
  }

  SimpleTest.finish();
}

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