test_bug460740.html

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<html>

<!--

https://bugzilla.mozilla.org/show_bug.cgi?id=460740

-->

<head>

  <title>Test for Bug 460740</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=460740">Mozilla Bug 460740</a>

<p id="display"></p>

<div id="content">

  <ul>

    <li contenteditable>

      Editable LI

    </li>

    <li>

      <div contenteditable>

        Editable DIV inside LI

      </div>

    </li>

    <li>

      <div>

        <div contenteditable>

          Editable DIV inside DIV inside LI

        </div>

      </div>

    </li>

    <li>

      <h3>

        <div contenteditable>

          Editable DIV inside H3 inside LI

        </div>

      </h3>

    </li>

  </ul>

  <div contenteditable>

    Editable DIV

  </div>

  <h3 contenteditable>

    Editable H3

  </h3>

  <p contenteditable>

    Editable P

  </p>

  <div>

    <p contenteditable>

      Editable P in a DIV

    </p>

  </div>

  <p><span contenteditable>Editable SPAN in a P</span></p>

</div>

<pre id="test">

<script type="application/javascript">

/** Test for Bug 460740 **/

SimpleTest.waitForExplicitFinish();

SimpleTest.waitForFocus(runTests);

const CARET_BEGIN  = 0;

const CARET_MIDDLE = 1;

const CARET_END    = 2;

function split(element, caretPos) {

  // compute the requested position

  var len = element.textContent.length;

  var pos = -1;

  switch (caretPos) {

    case CARET_BEGIN:

      pos = 0;

      break;

    case CARET_MIDDLE:

      pos = Math.floor(len / 2);

      break;

    case CARET_END:

      pos = len;

      break;

  // put the caret on the requested position

  var range = document.createRange();

  var sel = window.getSelection();

  range.setStart(element.firstChild, pos);

  range.setEnd(element.firstChild, pos);

  sel.addRange(range);

  // simulates a [Return] keypress

  synthesizeKey("VK_RETURN", {shiftKey: true});

// count the number of non-BR elements in #content

function getBlockCount() {

  return document.querySelectorAll("#content *:not(br)").length;

// count the number of BRs in element

function checkBR(element) {

  return element.querySelectorAll("br").length;

function runTests() {

  var count = getBlockCount();

  var nodes = document.querySelectorAll("#content [contenteditable]");

  for (var i = 0; i < nodes.length; i++) {

    var node = nodes[i];

    node.focus();

    is(checkBR(node), 0, node.textContent.trim() + ": This node should not have any <br> element yet.");

    for (var j = 0; j < 3; j++) { // CARET_BEGIN|MIDDLE|END

      split(node, j);

      ok(checkBR(node) > 0, node.textContent.trim() + " " + j + ": Pressing [Return] should add (at least) one <br> element.");

      is(getBlockCount(), count, node.textContent.trim() + " " + j + ": Pressing [Return] should not change the number of non-<br> elements.");

      document.execCommand("Undo", false, null);

  SimpleTest.finish();

</script>

</pre>

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