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: function observeOneRestore(callback) {
michael@0:   let topic = "sessionstore-browser-state-restored";
michael@0:   Services.obs.addObserver(function onRestore() {
michael@0:     Services.obs.removeObserver(onRestore, topic);
michael@0:     callback();
michael@0:   }, topic, false);
michael@0: };
michael@0: 
michael@0: function test() {
michael@0:   waitForExplicitFinish();
michael@0: 
michael@0:   // Disable Panorama, since it conflicts with this test.
michael@0:   let tabview = document.getElementById("tab-view");
michael@0:   if (tabview) {
michael@0:     document.getElementById("tab-view").contentWindow.UI.uninit();
michael@0:     TabView.uninit();
michael@0:   }
michael@0: 
michael@0:   // There should be one tab when we start the test
michael@0:   let [origTab] = gBrowser.visibleTabs;
michael@0:   let hiddenTab = gBrowser.addTab();
michael@0: 
michael@0:   is(gBrowser.visibleTabs.length, 2, "should have 2 tabs before hiding");
michael@0:   gBrowser.showOnlyTheseTabs([origTab]);
michael@0:   is(gBrowser.visibleTabs.length, 1, "only 1 after hiding");
michael@0:   ok(hiddenTab.hidden, "sanity check that it's hidden");
michael@0: 
michael@0:   let extraTab = gBrowser.addTab();
michael@0:   let state = ss.getBrowserState();
michael@0:   let stateObj = JSON.parse(state);
michael@0:   let tabs = stateObj.windows[0].tabs;
michael@0:   is(tabs.length, 3, "just checking that browser state is correct");
michael@0:   ok(!tabs[0].hidden, "first tab is visible");
michael@0:   ok(tabs[1].hidden, "second is hidden");
michael@0:   ok(!tabs[2].hidden, "third is visible");
michael@0: 
michael@0:   // Make the third tab hidden and then restore the modified state object
michael@0:   tabs[2].hidden = true;
michael@0: 
michael@0:   observeOneRestore(function() {
michael@0:     let testWindow = Services.wm.getEnumerator("navigator:browser").getNext();
michael@0:     is(testWindow.gBrowser.visibleTabs.length, 1, "only restored 1 visible tab");
michael@0:     let tabs = testWindow.gBrowser.tabs;
michael@0:     ok(!tabs[0].hidden, "first is still visible");
michael@0:     ok(tabs[1].hidden, "second tab is still hidden");
michael@0:     ok(tabs[2].hidden, "third tab is now hidden");
michael@0: 
michael@0:     // Restore the original state and clean up now that we're done
michael@0:     gBrowser.removeTab(hiddenTab);
michael@0:     gBrowser.removeTab(extraTab);
michael@0: 
michael@0:     // Re-enable Panorama.
michael@0:     if (tabview) {
michael@0:       TabView.init();
michael@0:     }
michael@0: 
michael@0:     finish();
michael@0:   });
michael@0:   ss.setBrowserState(JSON.stringify(stateObj));
michael@0: }