mozilla-central/browser/components/sessionstore/test/browser_586068-browser_state_interrupted.js (file symbol)

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/* 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
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
const PREF_RESTORE_ON_DEMAND = "browser.sessionstore.restore_on_demand";
requestLongerTimeout(2);
add_task(async function test() {
Services.prefs.setBoolPref(PREF_RESTORE_ON_DEMAND, false);
registerCleanupFunction(function () {
Services.prefs.clearUserPref(PREF_RESTORE_ON_DEMAND);
});
// The first state will be loaded using setBrowserState, followed by the 2nd
// state also being loaded using setBrowserState, interrupting the first restore.
let state1 = {
windows: [
{
tabs: [
{
entries: [
{ url: "http://example.org#1", triggeringPrincipal_base64 },
],
extData: { uniq: r() },
},
{
entries: [
{ url: "http://example.org#2", triggeringPrincipal_base64 },
],
extData: { uniq: r() },
},
{
entries: [
{ url: "http://example.org#3", triggeringPrincipal_base64 },
],
extData: { uniq: r() },
},
{
entries: [
{ url: "http://example.org#4", triggeringPrincipal_base64 },
],
extData: { uniq: r() },
},
],
selected: 1,
},
{
tabs: [
{
entries: [
{ url: "http://example.com#1", triggeringPrincipal_base64 },
],
extData: { uniq: r() },
},
{
entries: [
{ url: "http://example.com#2", triggeringPrincipal_base64 },
],
extData: { uniq: r() },
},
{
entries: [
{ url: "http://example.com#3", triggeringPrincipal_base64 },
],
extData: { uniq: r() },
},
{
entries: [
{ url: "http://example.com#4", triggeringPrincipal_base64 },
],
extData: { uniq: r() },
},
],
selected: 3,
},
],
};
let state2 = {
windows: [
{
tabs: [
{
entries: [
{ url: "http://example.org#5", triggeringPrincipal_base64 },
],
extData: { uniq: r() },
},
{
entries: [
{ url: "http://example.org#6", triggeringPrincipal_base64 },
],
extData: { uniq: r() },
},
{
entries: [
{ url: "http://example.org#7", triggeringPrincipal_base64 },
],
extData: { uniq: r() },
},
{
entries: [
{ url: "http://example.org#8", triggeringPrincipal_base64 },
],
extData: { uniq: r() },
},
],
selected: 3,
},
{
tabs: [
{
entries: [
{ url: "http://example.com#5", triggeringPrincipal_base64 },
],
extData: { uniq: r() },
},
{
entries: [
{ url: "http://example.com#6", triggeringPrincipal_base64 },
],
extData: { uniq: r() },
},
{
entries: [
{ url: "http://example.com#7", triggeringPrincipal_base64 },
],
extData: { uniq: r() },
},
{
entries: [
{ url: "http://example.com#8", triggeringPrincipal_base64 },
],
extData: { uniq: r() },
},
],
selected: 1,
},
],
};
// interruptedAfter will be set after the selected tab from each window have loaded.
let interruptedAfter = 0;
let loadedWindow1 = false;
let loadedWindow2 = false;
let numTabs = state2.windows[0].tabs.length + state2.windows[1].tabs.length;
let loadCount = 0;
let promiseRestoringTabs = new Promise(resolve => {
gProgressListener.setCallback(function (aBrowser, aNeedRestore) {
loadCount++;
if (
aBrowser.currentURI.spec == state1.windows[0].tabs[2].entries[0].url
) {
loadedWindow1 = true;
}
if (
aBrowser.currentURI.spec == state1.windows[1].tabs[0].entries[0].url
) {
loadedWindow2 = true;
}
if (!interruptedAfter && loadedWindow1 && loadedWindow2) {
interruptedAfter = loadCount;
ss.setBrowserState(JSON.stringify(state2));
return;
}
if (loadCount < numTabs + interruptedAfter) {
return;
}
// We don't actually care about load order in this test, just that they all
// do load.
is(loadCount, numTabs + interruptedAfter, "all tabs were restored");
is(aNeedRestore, 0, "there are no tabs left needing restore");
// Remove the progress listener.
gProgressListener.unsetCallback();
resolve();
});
});
// We also want to catch the extra windows (there should be 2), so we need to observe domwindowopened
Services.ww.registerNotification(function observer(aSubject, aTopic) {
if (aTopic == "domwindowopened") {
let win = aSubject;
win.addEventListener(
"load",
function () {
Services.ww.unregisterNotification(observer);
win.gBrowser.addTabsProgressListener(gProgressListener);
},
{ once: true }
);
}
});
let backupState = ss.getBrowserState();
ss.setBrowserState(JSON.stringify(state1));
await promiseRestoringTabs;
// Cleanup.
await promiseAllButPrimaryWindowClosed();
await promiseBrowserState(backupState);
});