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Test Info:
- Manifest: dom/base/test/browser.toml
/* -*- Mode: JavaScript; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
const SITE_A_URL =
getRootDirectory(gTestPath).replace(
) + "file_set_focus_after_reuse_bcg_1.html";
const SITE_B_URL =
getRootDirectory(gTestPath).replace(
) + "file_set_focus_after_reuse_bcg_2.html";
async function test_set_focus_after_reuse_bcg() {
const tab = await BrowserTestUtils.openNewForegroundTab(gBrowser, SITE_A_URL);
async function clickButtonToNavigateSiteB() {
// Navigate to site B
const siteBLoaded = BrowserTestUtils.browserLoaded(
tab.linkedBrowser,
false,
SITE_B_URL
);
await SpecialPowers.spawn(tab.linkedBrowser, [], async function () {
content.document.notifyUserGestureActivation();
var button = content.document.querySelector("button");
button.click();
});
await siteBLoaded;
}
async function clickButtonToEmbedIframe() {
// Make site B to embed the iframe that has the same origin as site A.
const embeddedIframeLoaded = SpecialPowers.spawn(
tab.linkedBrowser,
[],
async function () {
await new Promise(r => {
const iframe = content.document.querySelector("iframe");
iframe.onload = r;
});
}
);
await SpecialPowers.spawn(tab.linkedBrowser, [], async function () {
var button = content.document.querySelector("button");
button.click();
});
await embeddedIframeLoaded;
}
await clickButtonToNavigateSiteB();
await clickButtonToEmbedIframe();
// Navigate back to site A.
const pageNavigatedBackToSite1 = BrowserTestUtils.waitForContentEvent(
tab.linkedBrowser,
"pageshow"
);
tab.linkedBrowser.goBack();
await pageNavigatedBackToSite1;
// Reload site A.
// This reloading is quite important to reproduce this bug as it'll
// sync some BFCache status to the parent process for site A, which
// allows the BCG to reuse the already-subscribed process of site A.
await BrowserTestUtils.reloadTab(tab, true);
// TODO (sefeng): If we use tab.linkedBrowser.goForward() for
await clickButtonToNavigateSiteB();
await clickButtonToEmbedIframe();
// Wait for the <input> to be focused within the embedded iframe.
const activeBCInIframeProcess = await SpecialPowers.spawn(
tab.linkedBrowser,
[],
async function () {
let iframe = content.document.querySelector("iframe");
// Get the active browsing context of the process that the iframe belongs to
return SpecialPowers.spawn(iframe, [], () => {
const FocusManager = SpecialPowers.Services.focus;
return FocusManager.activeBrowsingContext;
});
}
);
Assert.ok(
!!activeBCInIframeProcess,
"activeBC should be set to the iframe process"
);
BrowserTestUtils.removeTab(tab);
}
add_task(async function () {
await test_set_focus_after_reuse_bcg();
});