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Test Info:
/* Any copyright is dedicated to the Public Domain.
add_task(async function test_new_window_resize() {
let tab = await BrowserTestUtils.openNewForegroundTab(
window.gBrowser,
);
await SpecialPowers.spawn(tab.linkedBrowser, [], async () => {
info("Opening popup.");
let win = this.content.open(
"",
"width=200,height=200"
);
await ContentTaskUtils.waitForEvent(win, "load");
let { outerWidth: initialWidth, outerHeight: initialHeight } = win;
let targetWidth = initialWidth + 100;
let targetHeight = initialHeight + 100;
let observedOurResizeEvent = false;
let resizeListener = () => {
let { outerWidth: currentWidth, outerHeight: currentHeight } = win;
info(`Resize event for ${currentWidth}x${currentHeight}.`);
if (currentWidth == targetWidth && currentHeight == targetHeight) {
ok(!observedOurResizeEvent, "First time we receive our resize event.");
observedOurResizeEvent = true;
}
};
win.addEventListener("resize", resizeListener);
win.resizeTo(targetWidth, targetHeight);
await ContentTaskUtils.waitForCondition(
() => observedOurResizeEvent,
`Waiting for our resize event (${targetWidth}x${targetHeight}).`
);
info("Waiting for potentially incoming resize events.");
for (let i = 0; i < 10; i++) {
await new Promise(r => win.requestAnimationFrame(r));
}
win.removeEventListener("resize", resizeListener);
info("Closing popup.");
win.close();
});
await BrowserTestUtils.removeTab(tab);
});