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Test Info:
/* Any copyright is dedicated to the Public Domain.
"use strict";
const gChromeBaseURL = getRootDirectory(gTestPath);
const gBaseURL = gChromeBaseURL.replace(
);
add_task(async function synthesizeWheelFromParent() {
async function testSynthesizeWheelFromParent(aBrowser, aAsyncEnabled) {
info(`Testing synthesizeWheel with asyncEnabled=${aAsyncEnabled}`);
let haveReceiveWheelEvent = false;
const onWheel = event => {
info(
`Received wheel event: ${event.type} ${event.deltaX} ${event.deltaY} ${event.deltaZ} ${event.deltaMode} ${event.detail}`
);
haveReceiveWheelEvent = true;
};
aBrowser.addEventListener("wheel", onWheel, { once: true });
await new Promise(resolve => {
EventUtils.synthesizeWheel(
aBrowser,
10,
10,
{
deltaMode: WheelEvent.DOM_DELTA_LINE,
deltaY: 1.0,
asyncEnabled: aAsyncEnabled,
},
window,
() => {
ok(haveReceiveWheelEvent, "Should have received wheel event");
aBrowser.removeEventListener("wheel", onWheel);
resolve();
}
);
});
}
await BrowserTestUtils.withNewTab(
gBaseURL + "dummy.html",
async function (browser) {
await testSynthesizeWheelFromParent(browser, false);
await testSynthesizeWheelFromParent(browser, true);
}
);
});
add_task(async function synthesizeWheelFromContent() {
async function testSynthesizeWheelFromContent(aBrowser, aAsyncEnabled) {
info(`Testing synthesizeWheel with asyncEnabled=${aAsyncEnabled}`);
await SpecialPowers.spawn(
aBrowser,
[aAsyncEnabled],
async aAsyncEnabled => {
let haveReceiveWheelEvent = false;
const onWheel = event => {
info(
`Received wheel event: ${event.type} ${event.deltaX} ${event.deltaY} ${event.deltaZ} ${event.deltaMode} ${event.detail}`
);
haveReceiveWheelEvent = true;
};
content.document.addEventListener("wheel", onWheel, { once: true });
await new Promise(resolve => {
try {
EventUtils.synthesizeWheel(
content.document.body,
10,
10,
{
deltaMode: content.WheelEvent.DOM_DELTA_LINE,
deltaY: 1.0,
asyncEnabled: aAsyncEnabled,
},
content.window,
() => {
ok(haveReceiveWheelEvent, "Should have received wheel event");
content.document.removeEventListener("wheel", onWheel);
resolve();
}
);
ok(!aAsyncEnabled, "synthesizeWheel should not throw");
} catch (e) {
ok(aAsyncEnabled, `synthesizeWheel should throw error: ${e}`);
content.document.removeEventListener("wheel", onWheel);
resolve();
}
});
}
);
}
await BrowserTestUtils.withNewTab(
gBaseURL + "dummy.html",
async function (browser) {
await testSynthesizeWheelFromContent(browser, false);
await testSynthesizeWheelFromContent(browser, true);
}
);
});