forked from mirrors/gecko-dev
43bac26d30
MozReview-Commit-ID: 6tv0Z06CO4a --HG-- extra : rebase_source : 014c0b04d8538dc5f15bc6dd4ed6bd220c55c5d4
38 lines
1.2 KiB
JavaScript
38 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 = "data:text/html;charset=utf-8," +
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'<body><button onblur="this.remove()">' +
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"<script>document.body.firstChild.focus()</script></body>";
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function getFocusedLocalName(browser) {
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return ContentTask.spawn(browser, null, function* () {
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return content.document.activeElement.localName;
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});
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}
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add_task(function* () {
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let testTab = yield BrowserTestUtils.openNewForegroundTab(gBrowser, URL);
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let browser = testTab.linkedBrowser;
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is((yield getFocusedLocalName(browser)), "button", "button is focused");
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let blankTab = yield BrowserTestUtils.openNewForegroundTab(gBrowser, "about:blank");
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yield 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((yield 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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