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Bug 1784757 - Ensure the scroll position change in the parent document arrived in the child OOP iframe. r=emilio

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Differential Revision: https://phabricator.services.mozilla.com/D193268
This commit is contained in:
Hiroyuki Ikezoe 2023-11-10 09:45:13 +00:00
parent d7b9e936c7
commit 0ee300659e
1 changed files with 14 additions and 6 deletions
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20
gfx/layers/apz/test/mochitest/helper_fission_animation_styling_in_oopif.html
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@ -73,6 +73,18 @@ async function observe_styling_in_oopif(aFrameCount) {
return styleCountData.data;
}
async function promiseScrollInfoArrivalInOOPIF() {
const scrollPromise = new Promise(resolve => {
scroller.addEventListener("scroll", resolve, { once: true });
});
const transformReceivedPromise = SpecialPowers.spawn(testframe, [], async () => {
await SpecialPowers.contentTransformsReceived(content);
});
await Promise.all([scrollPromise, transformReceivedPromise]);
}
// The actual test
async function test() {
@ -87,9 +99,7 @@ async function test() {
// Scroll synchronously to a position where the iframe gets visible.
scroller.scrollTo(0, 1000);
await new Promise(resolve => {
scroller.addEventListener("scroll", resolve, { once: true });
});
await promiseScrollInfoArrivalInOOPIF();
// Wait for a frame to make sure the notification of the last scroll position
// from APZC reaches the iframe process
@ -102,9 +112,7 @@ async function test() {
// Scroll synchronously to a position where the iframe is invisible again.
scroller.scrollTo(0, 0);
await new Promise(resolve => {
scroller.addEventListener("scroll", resolve, { once: true });
});
await promiseScrollInfoArrivalInOOPIF();
// Wait for a frame to make sure the notification of the last scroll position
// from APZC reaches the iframe process