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const { ChromeUtils } = SpecialPowers;
const { TestUtils } = ChromeUtils.importESModule(
"resource://testing-common/TestUtils.sys.mjs"
);
// Get test filename for page being run in popup so errors are more useful
var testName = location.pathname.split("/").pop();
// Wrap test functions and pass to parent window
window.ok = function (a, msg) {
opener.ok(a, testName + ": " + msg);
};
window.is = function (a, b, msg) {
opener.is(a, b, testName + ": " + msg);
};
window.isnot = function (a, b, msg) {
opener.isnot(a, b, testName + ": " + msg);
};
window.todo = function (a, msg) {
opener.todo(a, testName + ": " + msg);
};
window.todo_is = function (a, b, msg) {
opener.todo_is(a, b, testName + ": " + msg);
};
window.todo_isnot = function (a, b, msg) {
opener.todo_isnot(a, b, testName + ": " + msg);
};
window.info = function (msg) {
opener.info(testName + ": " + msg);
};
// Override bits of SimpleTest so test files work stand-alone
var SimpleTest = SimpleTest || {};
SimpleTest.waitForExplicitFinish = function () {
dump("[POINTERLOCK] Starting " + testName + "\n");
};
SimpleTest.finish = function () {
dump("[POINTERLOCK] Finishing " + testName + "\n");
opener.nextTest();
};
// Keep track of how many fullscreenChange enters we've received, so that
// we can balance them with the number of exits we receive. We reset this
// to 0 when we load a test.
var fullscreenChangeEnters = 0;
addLoadEvent(function () {
info(`Resetting fullscreen enter count.`);
fullscreenChangeEnters = 0;
if (typeof start !== "undefined") {
// Delay one event loop to stabilize the initial state of the page.
SimpleTest.executeSoon(start);
}
});
// Returns true if the window believes it is in fullscreen. This may be true even
// before an asynchronous fullscreen transition is complete.
function inFullscreenMode(win) {
return win.document.fullscreenElement;
}
// Adds a listener that will be called once a fullscreen transition
// is complete. When type==='enter', callback is called when we've
// received a fullscreenchange event, and the fullscreen transition is
// complete. When type==='exit', callback is called when we've
// received a fullscreenchange event and the window is out of
// fullscreen. inDoc is the document which the listeners are added on,
// if absent, the listeners are added to the current document.
function addFullscreenChangeContinuation(type, callback, inDoc) {
var doc = inDoc || document;
var topWin = doc.defaultView.top;
function checkCondition() {
if (type == "enter") {
fullscreenChangeEnters++;
return inFullscreenMode(topWin);
} else if (type == "exit") {
fullscreenChangeEnters--;
return fullscreenChangeEnters
? inFullscreenMode(topWin)
: !inFullscreenMode(topWin);
} else {
throw "'type' must be either 'enter', or 'exit'.";
}
}
function onFullscreenChange(event) {
doc.removeEventListener("fullscreenchange", onFullscreenChange);
ok(checkCondition(), `Should ${type} fullscreen.`);
// Invoke the callback after the browsingContext has become active
// (or we've timed out waiting for it to become active).
let bc = SpecialPowers.wrap(topWin).browsingContext;
TestUtils.waitForCondition(
() => bc.isActive,
"browsingContext should become active"
)
.catch(e =>
ok(false, `Wait for browsingContext.isActive failed with ${e}`)
)
.finally(() => {
requestAnimationFrame(() => setTimeout(() => callback(event), 0), 0);
});
}
doc.addEventListener("fullscreenchange", onFullscreenChange);
}
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