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Test Info: Warnings
- This test gets skipped with pattern: !sessionHistoryInParent
- Manifest: layout/base/tests/browser.toml
/* Any copyright is dedicated to the Public Domain.
const URL =
"data:text/html," +
"<style> a:hover {background-color: black}</style>" +
"<body style='width:100px;height:100px'>" +
"</body>";
function isAnchorHovered(win) {
return SpecialPowers.spawn(
win.gBrowser.selectedBrowser,
[],
async function () {
const a = content.document.querySelector("a");
return a.matches(":hover");
}
);
}
add_task(async function test() {
let newWin = await BrowserTestUtils.openNewBrowserWindow();
// This bug is only reproducible if the cursor is out of the viewport, so
// we resize the window to ensure the cursor is out of the viewport.
// SynthesizeMouse isn't sufficient because it only synthesizes
// mouse events without actually moving the cursor permanently to a
// new location.
newWin.resizeTo(50, 50);
BrowserTestUtils.startLoadingURIString(newWin.gBrowser.selectedBrowser, URL);
await BrowserTestUtils.browserLoaded(newWin.gBrowser.selectedBrowser);
await SpecialPowers.spawn(
newWin.gBrowser.selectedBrowser,
[],
async function () {
const a = content.document.querySelector("a");
await EventUtils.synthesizeMouseAtCenter(
a,
{ type: "mousemove" },
content
);
}
);
// We've hovered the anchor element.
let anchorHovered = await isAnchorHovered(newWin);
ok(anchorHovered, "Anchor should be hovered");
let locationChange = BrowserTestUtils.waitForLocationChange(newWin.gBrowser);
// Click the anchor to navigate away
await SpecialPowers.spawn(
newWin.gBrowser.selectedBrowser,
[],
async function () {
const a = content.document.querySelector("a");
await EventUtils.synthesizeMouseAtCenter(
a,
{ type: "mousedown" },
content
);
await EventUtils.synthesizeMouseAtCenter(a, { type: "mouseup" }, content);
}
);
await locationChange;
// Navigate back to the previous page which has the anchor
locationChange = BrowserTestUtils.waitForLocationChange(newWin.gBrowser);
newWin.gBrowser.selectedBrowser.goBack();
await locationChange;
// Hover state should be cleared upon page caching.
anchorHovered = await isAnchorHovered(newWin);
ok(!anchorHovered, "Anchor should not be hovered");
BrowserTestUtils.closeWindow(newWin);
});