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Test Info:

<!DOCTYPE HTML>
<html>
<!--
-->
<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(aDocument, aSelection, aReason) {
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>
<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>