test_plaintext_mail_in_design_mode.html

Enable keyboard shortcuts

<!DOCTYPE HTML>

<html>

<head>

  <meta charset="utf-8">

  <title>Test that plaintext mail editor does not allow styling, even in design mode</title>

  <script src="/tests/SimpleTest/SimpleTest.js"></script>

  <link rel="stylesheet" href="/tests/SimpleTest/test.css"/>

</head>

<body>

<div>hello</div>

<script>

'use strict';

function getEditor() {

  const editingSession = SpecialPowers.wrap(window).docShell.editingSession;

  return editingSession.getEditorForWindow(window);

add_task(async () => {

  await SimpleTest.promiseFocus();

  document.designMode = 'on';

  await new Promise(r => SimpleTest.executeSoon(r));

  getEditor().flags |=

    SpecialPowers.Ci.nsIEditor.eEditorMailMask | SpecialPowers.Ci.nsIEditor.eEditorPlaintextMask;

  const host = document.querySelector('div');

  getSelection().setBaseAndExtent(host.firstChild, 0, host.firstChild, 3);

  document.execCommand('bold');

  is(host.innerHTML, 'hello',

     'Should not allow formatting for plaintext mail editor, even if design mode is on.');

});

</script>

</body>

</html>