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Test Info:
/* Any copyright is dedicated to the Public Domain.
var windowState = {
windows: [
{
tabs: [
{
entries: [
],
},
{
entries: [
],
},
{
entries: [
],
},
{
entries: [
],
},
{
entries: [
],
hidden: true,
},
{
entries: [
],
hidden: true,
},
{
entries: [
],
hidden: true,
},
{
entries: [
],
hidden: true,
},
],
},
],
};
function test() {
waitForExplicitFinish();
requestLongerTimeout(2);
registerCleanupFunction(function () {
Services.prefs.clearUserPref("browser.sessionstore.restore_hidden_tabs");
});
// First stage: restoreHiddenTabs = true
// Second stage: restoreHiddenTabs = false
test_loadTabs(true, function () {
test_loadTabs(false, finish);
});
}
function test_loadTabs(restoreHiddenTabs, callback) {
Services.prefs.setBoolPref(
"browser.sessionstore.restore_hidden_tabs",
restoreHiddenTabs
);
let expectedTabs = restoreHiddenTabs ? 8 : 4;
let firstProgress = true;
newWindowWithState(windowState, function (win, needsRestore, isRestoring) {
if (firstProgress) {
firstProgress = false;
is(isRestoring, 3, "restoring 3 tabs concurrently");
} else {
Assert.less(isRestoring, 4, "restoring max. 3 tabs concurrently");
}
// We're explicity checking for (isRestoring == 1) here because the test
// progress listener is called before the session store one. So when we're
// called with one tab left to restore we know that the last tab has
// finished restoring and will soon be handled by the SS listener.
let tabsNeedingRestore = win.gBrowser.tabs.length - needsRestore;
if (isRestoring == 1 && tabsNeedingRestore == expectedTabs) {
is(win.gBrowser.visibleTabs.length, 4, "only 4 visible tabs");
TabsProgressListener.uninit();
executeSoon(callback);
}
});
}
var TabsProgressListener = {
init(win) {
this.window = win;
Services.obs.addObserver(this, "sessionstore-debug-tab-restored");
},
uninit() {
Services.obs.removeObserver(this, "sessionstore-debug-tab-restored");
delete this.window;
delete this.callback;
},
setCallback(callback) {
this.callback = callback;
},
observe(browser) {
TabsProgressListener.onRestored(browser);
},
onRestored(browser) {
if (
this.callback &&
ss.getInternalObjectState(browser) == TAB_STATE_RESTORING
) {
this.callback.apply(null, [this.window].concat(this.countTabs()));
}
},
countTabs() {
let needsRestore = 0,
isRestoring = 0;
for (let i = 0; i < this.window.gBrowser.tabs.length; i++) {
let state = ss.getInternalObjectState(
this.window.gBrowser.tabs[i].linkedBrowser
);
if (state == TAB_STATE_RESTORING) {
isRestoring++;
} else if (state == TAB_STATE_NEEDS_RESTORE) {
needsRestore++;
}
}
return [needsRestore, isRestoring];
},
};
// ----------
function newWindowWithState(state, callback) {
let opts = "chrome,all,dialog=no,height=800,width=800";
let win = window.openDialog(AppConstants.BROWSER_CHROME_URL, "_blank", opts);
registerCleanupFunction(() => BrowserTestUtils.closeWindow(win));
whenWindowLoaded(win, function onWindowLoaded(aWin) {
TabsProgressListener.init(aWin);
TabsProgressListener.setCallback(callback);
ss.setWindowState(aWin, JSON.stringify(state), true);
});
}