mozilla-central/gfx/layers/apz/test/mochitest/browser_test_mousemove_optimization.js (file symbol)

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/* -*- Mode: indent-tabs-mode: nil; js-indent-level: 2 -*- */
/* vim: set sts=2 sw=2 et tw=80: */
"use strict";
Services.scriptloader.loadSubScript(
this
);
Services.scriptloader.loadSubScript(
this
);
add_task(async function () {
await SpecialPowers.pushPrefEnv({
set: [["apz.mousemove_hittest_optimization.enabled", true]],
});
const tab = await BrowserTestUtils.openNewForegroundTab(
gBrowser,
"data:text/html,hello"
);
const mousemoveEventPromise = new Promise(resolve => {
window.addEventListener(
"mousemove",
event => {
resolve({
type: event.type,
clientX: event.clientX,
clientY: event.clientY,
});
},
{ once: true }
);
});
// Send a mousemove event on this document.
await synthesizeNativeMouseEventWithAPZ({
type: "mousemove",
target: document.documentElement,
offsetX: 100,
offsetY: 50,
});
let result = await mousemoveEventPromise;
SimpleTest.isDeeply(result, { type: "mousemove", clientX: 100, clientY: 50 });
const mousemoveEventPromiseOnContent = SpecialPowers.spawn(
tab.linkedBrowser,
[],
() => {
return new Promise(resolve => {
content.window.addEventListener(
"mousemove",
event => {
resolve({
type: event.type,
clientX: event.clientX,
clientY: event.clientY,
});
},
{ once: true }
);
});
}
);
// Await a new SpecialPowers.spawn to flush the above queued task to the content process.
await SpecialPowers.spawn(tab.linkedBrowser, [], async () => {
await new Promise(resolve => resolve());
});
// Send a mousemove event on the iframe document.
await synthesizeNativeMouseEventWithAPZ({
type: "mousemove",
target: tab.linkedBrowser,
offsetX: 100,
offsetY: 50,
});
result = await mousemoveEventPromiseOnContent;
SimpleTest.isDeeply(result, { type: "mousemove", clientX: 100, clientY: 50 });
BrowserTestUtils.removeTab(tab);
});