test_bug1053048.html

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<html>

<!--

https://bugzilla.mozilla.org/show_bug.cgi?id=1053048

-->

<head>

  <meta charset="utf-8">

  <title>Test for Bug 1053048</title>

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

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

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

  <script type="application/javascript">

  /** Test for Bug 1053048 **/

  SimpleTest.waitForExplicitFinish();

  SimpleTest.waitForFocus(runTests);

  const nsISelectionListener = SpecialPowers.Ci.nsISelectionListener;

  async function runTests() {

    var textarea = SpecialPowers.wrap(document.getElementById("textarea"));

    textarea.focus();

    var editor = textarea.editor;

    var selectionPrivate = editor.selection;

    // Move caret to the end of the textarea

    synthesizeMouse(textarea, 290, 10, {});

    is(textarea.selectionStart, 3, "selectionStart should be 3 (after \"foo\")");

    is(textarea.selectionEnd, 3, "selectionEnd should be 3 (after \"foo\")");

    // This test **was** trying to check whether a selection listener which

    // runs while an editor handles an edit action does not stop handling it.

    // However, this selection listener caught previous selection change

    // notification immediately before synthesizing the `Enter` key press

    // unexpectedly.  And now, selection listener may not run immediately after

    // synthesizing the key press.  So, we don't need to check whether a

    // notification actually comes here.

    let selectionListener = {

      notifySelectionChanged() {

        ok(true, "selectionStart: " + textarea.selectionStart);

        ok(true, "selectionEnd: " + textarea.selectionEnd);

},

};

    selectionPrivate.addSelectionListener(selectionListener);

    synthesizeKey("KEY_Enter");

    is(textarea.selectionStart, 4, "selectionStart should be 4");

    is(textarea.selectionEnd, 4, "selectionEnd should be 4");

    is(textarea.value, "foo\n", "The line break should be appended");

    selectionPrivate.removeSelectionListener(selectionListener);

    SimpleTest.finish();

  </script>

</head>

<body>

<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1053048">Mozilla Bug 1053048</a>

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

<div id="content" style="display: none">

</div>

<textarea id="textarea"

          style="height: 100px; width: 300px; -moz-appearance: none"

          spellcheck="false"

          onkeydown="this.style.display='block'; this.style.height='200px';">foo</textarea>

<pre id="test">

</pre>

</body>

</html>