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<!DOCTYPE html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=1390562
-->
<html>
<head>
  <title>Test for Bug 1390562</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=1390562">Mozilla Bug 1390562</a>
<p id="display"></p>
<div id="content" style="display: none;">

</div>

<div id="editor" contenteditable></div>
<pre id="test">
<script class="testbody" type="application/javascript">
SimpleTest.waitForExplicitFinish();
SimpleTest.waitForFocus(function() {
  let editor = document.getElementById("editor");

  editor.focus();

  // Make the HTML editor's default break is <br>
  document.execCommand("defaultParagraphSeparator", false, "br");

  editor.innerHTML = "<div>abc<br><br></div>def";

  // Collapse selection at the end of the first text node.
  window.getSelection().collapse(editor.firstChild.firstChild, 3);

  // Then, typing Enter should insert <br> for <div> container.
  // This is necessary for backward compatibility.  When we change default
  // value of "defaultParagraphSeparator" to "div" or "p", it may be possible
  // to remove this hack.
  synthesizeKey("KEY_Enter");

  is(editor.innerHTML,
     "<div>abc<br><br><br></div>def",
     "Enter key press at end of a text node followed by a visible <br> shouldn't split <div> container when defaultParagraphSeparator is 'br'");

  // Check also the case of <p> as container.
  editor.innerHTML = "<p>abc<br><br></p>def";

  // Collapse selection at the end of the first text node.
  window.getSelection().collapse(editor.firstChild.firstChild, 3);

  // Then, typing Enter should splitting <p> container and remove the visible
  // <br> element next to the caret position.
  // This is not consistent with <div> container, but this is better behavior
  // and keep using this behavior.
  synthesizeKey("KEY_Enter");

  is(editor.innerHTML,
     "<p>abc</p><p><br></p>def",
     "Enter key press at end of a text node followed by a visible <br> should split <p> container and remove the visible <br> when defaultParagraphSeparator is 'br'");

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