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<meta charset="utf-8">
<title>Test for Bug 1151186</title>
<link rel=stylesheet href="/tests/SimpleTest/test.css">
<script src="/tests/SimpleTest/SimpleTest.js"></script>
/** Test for Bug 1151186 **/
// In this test, we want to check the IME enabled state in the `contenteditable`
// editor which is focused by `focus` event listener of the document.
// However, according to the random oranges filed as bug 1176038 and bug 1611360,
// `focus` event are sometimes not fired on the document and the reason is,
// the document sometimes not focused automatically. Therefore, this test
// will set focus the document when `focus` event is not fired until next
// macro task.
var focusEventFired = false;
function onFocus(event) {
is(, "#document", "focus event should be fired on the document node");
if ( != document) {
focusEventFired = true;
document.addEventListener("focus", onFocus, {once: true});
// Register next macro task to check whether `focus` event of the document
// is fired as expected. If not, let's focus our window manually. Then,
// the `focus` event listener starts the test anyway.
setTimeout(() => {
if (focusEventFired) {
return; // We've gotten `focus` event as expected.
ok(!document.hasFocus(), "The document should not have focus yet");
info("Setting focus to the window forcibly...");
}, 0);
function runTests() {
let description = focusEventFired ?
"document got focused normally" :
"document got focused forcibly";
is(document.activeElement, document.getElementById("editor"),
`The div element should be focused (${description})`);
var utils = SpecialPowers.getDOMWindowUtils(window);
is(utils.IMEStatus, utils.IME_STATUS_ENABLED,
`IME should be enabled (${description})`);
<p id="display"></p>
<div id="content" style="display: none">
<div id="editor" contenteditable="true"></div>
<pre id="test">