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Test Info: Warnings
- This test gets skipped with pattern: os != 'mac'
- Manifest: dom/tests/browser/browser.toml
/**
* Any copyright is dedicated to the Public Domain.
*/
"use strict";
const testPageURL =
async function testContentVisibilityState(aIsHidden, aBrowser) {
await SpecialPowers.spawn(
aBrowser.selectedBrowser,
[aIsHidden],
aExpectedResult => {
is(content.document.hidden, aExpectedResult, "document.hidden");
is(
content.document.visibilityState,
aExpectedResult ? "hidden" : "visible",
"document.visibilityState"
);
}
);
}
async function waitContentVisibilityChange(aIsHidden, aBrowser) {
await SpecialPowers.spawn(
aBrowser.selectedBrowser,
[aIsHidden],
async function (aExpectedResult) {
let visibilityState = aExpectedResult ? "hidden" : "visible";
if (
content.document.hidden === aExpectedResult &&
content.document.visibilityState === visibilityState
) {
ok(true, "already changed to expected visibility state");
return;
}
info("wait visibilitychange event");
await ContentTaskUtils.waitForEvent(
content.document,
"visibilitychange",
true /* capture */,
() => {
info(
`visibilitychange: ${content.document.hidden} ${content.document.visibilityState}`
);
return (
content.document.hidden === aExpectedResult &&
content.document.visibilityState === visibilityState
);
}
);
}
);
}
/**
* This test is to test the visibility state will change to "hidden" when browser
* window is fully covered by another non-translucent application. Note that we
* only support this on Mac for now, other platforms don't support reporting
* occlusion state.
*/
add_task(async function () {
info("creating test window");
let winTest = await BrowserTestUtils.openNewBrowserWindow();
// Specify the width, height, left and top, so that the new window can be
// fully covered by "window".
let resizePromise = BrowserTestUtils.waitForEvent(
winTest,
"resize",
false,
() => {
return winTest.innerHeight <= 500 && winTest.innerWidth <= 500;
}
);
winTest.moveTo(200, 200);
winTest.resizeTo(500, 500);
await resizePromise;
let browserTest = winTest.gBrowser;
info(`loading test page: ${testPageURL}`);
BrowserTestUtils.startLoadingURIString(
browserTest.selectedBrowser,
testPageURL
);
await BrowserTestUtils.browserLoaded(browserTest.selectedBrowser);
info("test init visibility state");
await testContentVisibilityState(false /* isHidden */, browserTest);
info(
"test window should report 'hidden' if it is fully covered by another " +
"window"
);
await new Promise(resolve => waitForFocus(resolve, window));
await waitContentVisibilityChange(true /* isHidden */, browserTest);
info(
"test window should still report 'hidden' since it is still fully covered " +
"by another window"
);
let tab = BrowserTestUtils.addTab(browserTest);
await BrowserTestUtils.switchTab(browserTest, tab);
BrowserTestUtils.removeTab(browserTest.selectedTab);
await testContentVisibilityState(true /* isHidden */, browserTest);
info(
"test window should report 'visible' if it is not fully covered by " +
"another window"
);
await new Promise(resolve => waitForFocus(resolve, winTest));
await waitContentVisibilityChange(false /* isHidden */, browserTest);
info("closing test window");
await BrowserTestUtils.closeWindow(winTest);
});