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41 lines
1.2 KiB
JavaScript
41 lines
1.2 KiB
JavaScript
"use strict";
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/*
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* Test bug 427559 to make sure focused elements that are no longer on the page
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* will have focus transferred to the window when changing tabs back to that
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* tab with the now-gone element.
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*/
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// Default focus on a button and have it kill itself on blur.
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const URL =
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"data:text/html;charset=utf-8," +
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'<body><button onblur="this.remove()">' +
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"<script>document.body.firstElementChild.focus()</script></body>";
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function getFocusedLocalName(browser) {
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return SpecialPowers.spawn(browser, [], async function () {
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return content.document.activeElement.localName;
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});
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}
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add_task(async function () {
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let testTab = await BrowserTestUtils.openNewForegroundTab(gBrowser, URL);
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let browser = testTab.linkedBrowser;
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is(await getFocusedLocalName(browser), "button", "button is focused");
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let blankTab = await BrowserTestUtils.openNewForegroundTab(
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gBrowser,
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"about:blank"
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);
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await BrowserTestUtils.switchTab(gBrowser, testTab);
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// Make sure focus is given to the window because the element is now gone.
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is(await getFocusedLocalName(browser), "body", "body is focused");
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// Cleanup.
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gBrowser.removeTab(blankTab);
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gBrowser.removeCurrentTab();
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});
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