michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: const PREF_RESTORE_ON_DEMAND = "browser.sessionstore.restore_on_demand";
michael@0: 
michael@0: function test() {
michael@0:   TestRunner.run();
michael@0: }
michael@0: 
michael@0: function runTests() {
michael@0:   Services.prefs.setBoolPref(PREF_RESTORE_ON_DEMAND, false);
michael@0:   registerCleanupFunction(function () {
michael@0:     Services.prefs.clearUserPref(PREF_RESTORE_ON_DEMAND);
michael@0:   });
michael@0: 
michael@0:   // The first state will be loaded using setBrowserState, followed by the 2nd
michael@0:   // state also being loaded using setBrowserState, interrupting the first restore.
michael@0:   let state1 = { windows: [
michael@0:     {
michael@0:       tabs: [
michael@0:         { entries: [{ url: "http://example.org#1" }], extData: { "uniq": r() } },
michael@0:         { entries: [{ url: "http://example.org#2" }], extData: { "uniq": r() } },
michael@0:         { entries: [{ url: "http://example.org#3" }], extData: { "uniq": r() } },
michael@0:         { entries: [{ url: "http://example.org#4" }], extData: { "uniq": r() } }
michael@0:       ],
michael@0:       selected: 1
michael@0:     },
michael@0:     {
michael@0:       tabs: [
michael@0:         { entries: [{ url: "http://example.com#1" }], extData: { "uniq": r() } },
michael@0:         { entries: [{ url: "http://example.com#2" }], extData: { "uniq": r() } },
michael@0:         { entries: [{ url: "http://example.com#3" }], extData: { "uniq": r() } },
michael@0:         { entries: [{ url: "http://example.com#4" }], extData: { "uniq": r() } },
michael@0:       ],
michael@0:       selected: 3
michael@0:     }
michael@0:   ] };
michael@0:   let state2 = { windows: [
michael@0:     {
michael@0:       tabs: [
michael@0:         { entries: [{ url: "http://example.org#5" }], extData: { "uniq": r() } },
michael@0:         { entries: [{ url: "http://example.org#6" }], extData: { "uniq": r() } },
michael@0:         { entries: [{ url: "http://example.org#7" }], extData: { "uniq": r() } },
michael@0:         { entries: [{ url: "http://example.org#8" }], extData: { "uniq": r() } }
michael@0:       ],
michael@0:       selected: 3
michael@0:     },
michael@0:     {
michael@0:       tabs: [
michael@0:         { entries: [{ url: "http://example.com#5" }], extData: { "uniq": r() } },
michael@0:         { entries: [{ url: "http://example.com#6" }], extData: { "uniq": r() } },
michael@0:         { entries: [{ url: "http://example.com#7" }], extData: { "uniq": r() } },
michael@0:         { entries: [{ url: "http://example.com#8" }], extData: { "uniq": r() } },
michael@0:       ],
michael@0:       selected: 1
michael@0:     }
michael@0:   ] };
michael@0: 
michael@0:   // interruptedAfter will be set after the selected tab from each window have loaded.
michael@0:   let interruptedAfter = 0;
michael@0:   let loadedWindow1 = false;
michael@0:   let loadedWindow2 = false;
michael@0:   let numTabs = state2.windows[0].tabs.length + state2.windows[1].tabs.length;
michael@0: 
michael@0:   let loadCount = 0;
michael@0:   gProgressListener.setCallback(function (aBrowser, aNeedRestore, aRestoring, aRestored) {
michael@0:     loadCount++;
michael@0: 
michael@0:     if (aBrowser.currentURI.spec == state1.windows[0].tabs[2].entries[0].url)
michael@0:       loadedWindow1 = true;
michael@0:     if (aBrowser.currentURI.spec == state1.windows[1].tabs[0].entries[0].url)
michael@0:       loadedWindow2 = true;
michael@0: 
michael@0:     if (!interruptedAfter && loadedWindow1 && loadedWindow2) {
michael@0:       interruptedAfter = loadCount;
michael@0:       ss.setBrowserState(JSON.stringify(state2));
michael@0:       return;
michael@0:     }
michael@0: 
michael@0:     if (loadCount < numTabs + interruptedAfter)
michael@0:       return;
michael@0: 
michael@0:     // We don't actually care about load order in this test, just that they all
michael@0:     // do load.
michael@0:     is(loadCount, numTabs + interruptedAfter, "all tabs were restored");
michael@0:     is(aNeedRestore, 0, "there are no tabs left needing restore");
michael@0: 
michael@0:     // Remove the progress listener from this window, it will be removed from
michael@0:     // theWin when that window is closed (in setBrowserState).
michael@0:     gProgressListener.unsetCallback();
michael@0:     executeSoon(next);
michael@0:   });
michael@0: 
michael@0:   // We also want to catch the extra windows (there should be 2), so we need to observe domwindowopened
michael@0:   Services.ww.registerNotification(function observer(aSubject, aTopic, aData) {
michael@0:     if (aTopic == "domwindowopened") {
michael@0:       let win = aSubject.QueryInterface(Ci.nsIDOMWindow);
michael@0:       win.addEventListener("load", function onLoad() {
michael@0:         win.removeEventListener("load", onLoad);
michael@0:         Services.ww.unregisterNotification(observer);
michael@0:         win.gBrowser.addTabsProgressListener(gProgressListener);
michael@0:       });
michael@0:     }
michael@0:   });
michael@0: 
michael@0:   yield ss.setBrowserState(JSON.stringify(state1));
michael@0: }