mozilla-central/browser/base/content/test/general/browser_minimize.js (file symbol)

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Test Info: Warnings

/* Any copyright is dedicated to the Public Domain.
add_task(async function () {
registerCleanupFunction(function () {
window.restore();
});
function isActive() {
return gBrowser.selectedTab.linkedBrowser.docShellIsActive;
}
ok(isActive(), "Docshell should be active when starting the test");
ok(!document.hidden, "Top level window should be visible");
// When we show or hide the window (including by minimization),
// there are 2 signifiers that the process is complete: the
// sizemodechange event, and the browsing context becoming active
// or inactive. There is another signifier, the
// occlusionstatechange event, but whether or not that event
// is sent is platform-dependent, so it's not very useful. The
// safest way to check for stable state is to build promises
// around sizemodechange and browsing context active and then
// wait for them all to complete, and that's what we do here.
info("Calling window.minimize");
let promiseSizeModeChange = BrowserTestUtils.waitForEvent(
window,
"sizemodechange"
).then(
() => ok(true, "Got sizemodechange."),
() => ok(false, "Rejected sizemodechange.")
);
let promiseBrowserInactive = BrowserTestUtils.waitForCondition(
() => !isActive(),
"Docshell should be inactive."
).then(
() => ok(true, "Got inactive."),
() => ok(false, "Rejected inactive.")
);
window.minimize();
await Promise.all([promiseSizeModeChange, promiseBrowserInactive]);
ok(document.hidden, "Top level window should be hidden");
// When we restore the window from minimization, we have the
// same concerns as above, so prepare our promises.
info("Calling window.restore");
promiseSizeModeChange = BrowserTestUtils.waitForEvent(
window,
"sizemodechange"
).then(
() => ok(true, "Got sizemodechange."),
() => ok(false, "Rejected sizemodechange.")
);
let promiseBrowserActive = BrowserTestUtils.waitForCondition(
() => isActive(),
"Docshell should be active."
).then(
() => ok(true, "Got active."),
() => ok(false, "Rejected active.")
);
window.restore();
// On Ubuntu `window.restore` doesn't seem to work, use a timer to make the
// test fail faster and more cleanly than with a test timeout.
await Promise.race([
Promise.all([promiseSizeModeChange, promiseBrowserActive]),
new Promise((resolve, reject) =>
// eslint-disable-next-line mozilla/no-arbitrary-setTimeout
setTimeout(() => {
reject("timed out waiting for sizemodechange event");
}, 5000)
),
]);
ok(!document.hidden, "Top level window should be visible");
});