59 lines
1.6 KiB
JavaScript
59 lines
1.6 KiB
JavaScript
add_task(async function () {
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const URL =
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"data:text/html,<!DOCTYPE html><html><body><input autofocus id='target'></body></html>";
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const foregroundTab = gBrowser.selectedTab;
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const backgroundTab = BrowserTestUtils.addTab(gBrowser);
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// Ensure tab is still in the foreground.
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is(
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gBrowser.selectedTab,
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foregroundTab,
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"foregroundTab should still be selected"
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);
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// Load the second tab in the background.
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const loadedPromise = BrowserTestUtils.browserLoaded(
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backgroundTab.linkedBrowser,
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/* includesubframes */ false,
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URL
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);
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BrowserTestUtils.startLoadingURIString(backgroundTab.linkedBrowser, URL);
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await loadedPromise;
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// Get active element in the tab.
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let tagName = await SpecialPowers.spawn(
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backgroundTab.linkedBrowser,
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[],
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async function () {
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// Spec asks us to flush autofocus candidates in the
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// `update-the-rendering` step, so we need to wait
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// for a rAF to ensure autofocus candidates are
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// flushed.
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await new Promise(r => {
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content.requestAnimationFrame(r);
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});
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return content.document.activeElement.tagName;
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}
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);
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is(
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tagName,
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"INPUT",
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"The background tab's focused element should be the <input>"
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);
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is(
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gBrowser.selectedTab,
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foregroundTab,
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"foregroundTab tab should still be selected, shouldn't cause a tab switch"
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);
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is(
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document.activeElement,
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foregroundTab.linkedBrowser,
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"The background tab's focused element should not cause the tab to be selected"
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);
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// Cleaning up.
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BrowserTestUtils.removeTab(backgroundTab);
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});
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