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: "use strict";
michael@0: 
michael@0: const kTimeoutInMS = 20000;
michael@0: 
michael@0: // Bug 934951 - Zoom controls percentage label doesn't update when it's in the toolbar and you navigate.
michael@0: add_task(function() {
michael@0:   CustomizableUI.addWidgetToArea("zoom-controls", CustomizableUI.AREA_NAVBAR);
michael@0:   let tab1 = gBrowser.addTab("about:mozilla");
michael@0:   let tab2 = gBrowser.addTab("about:newtab");
michael@0:   gBrowser.selectedTab = tab1;
michael@0:   let zoomResetButton = document.getElementById("zoom-reset-button");
michael@0: 
michael@0:   registerCleanupFunction(() => {
michael@0:     info("Cleaning up.");
michael@0:     CustomizableUI.reset();
michael@0:     gBrowser.removeTab(tab2);
michael@0:     gBrowser.removeTab(tab1);
michael@0:   });
michael@0: 
michael@0:   is(parseInt(zoomResetButton.label, 10), 100, "Default zoom is 100% for about:mozilla");
michael@0:   let zoomChangePromise = promiseObserverNotification("browser-fullZoom:zoomChange");
michael@0:   FullZoom.enlarge();
michael@0:   yield zoomChangePromise;
michael@0:   is(parseInt(zoomResetButton.label, 10), 110, "Zoom is changed to 110% for about:mozilla");
michael@0: 
michael@0:   let tabSelectPromise = promiseTabSelect();
michael@0:   gBrowser.selectedTab = tab2;
michael@0:   yield tabSelectPromise;
michael@0:   is(parseInt(zoomResetButton.label, 10), 100, "Default zoom is 100% for about:newtab");
michael@0: 
michael@0:   gBrowser.selectedTab = tab1;
michael@0:   let zoomResetPromise = promiseObserverNotification("browser-fullZoom:zoomReset");
michael@0:   FullZoom.reset();
michael@0:   yield zoomResetPromise;
michael@0:   is(parseInt(zoomResetButton.label, 10), 100, "Default zoom is 100% for about:mozilla");
michael@0: 
michael@0:   // Test zoom label updates while navigating pages in the same tab.
michael@0:   FullZoom.enlarge();
michael@0:   yield zoomChangePromise;
michael@0:   is(parseInt(zoomResetButton.label, 10), 110, "Zoom is changed to 110% for about:mozilla");
michael@0:   yield promiseTabLoadEvent(tab1, "about:home");
michael@0:   is(parseInt(zoomResetButton.label, 10), 100, "Default zoom is 100% for about:home");
michael@0:   yield promiseTabHistoryNavigation(-1, function() {
michael@0:     return parseInt(zoomResetButton.label, 10) == 110;
michael@0:   });
michael@0:   is(parseInt(zoomResetButton.label, 10), 110, "Zoom is still 110% for about:mozilla");
michael@0: });
michael@0: 
michael@0: function promiseObserverNotification(aObserver) {
michael@0:   let deferred = Promise.defer();
michael@0:   function notificationCallback(e) {
michael@0:     Services.obs.removeObserver(notificationCallback, aObserver, false);
michael@0:     clearTimeout(timeoutId);
michael@0:     deferred.resolve();
michael@0:   };
michael@0:   let timeoutId = setTimeout(() => {
michael@0:     Services.obs.removeObserver(notificationCallback, aObserver, false);
michael@0:     deferred.reject("Notification '" + aObserver + "' did not happen within 20 seconds.");
michael@0:   }, kTimeoutInMS);
michael@0:   Services.obs.addObserver(notificationCallback, aObserver, false);
michael@0:   return deferred.promise;
michael@0: }
michael@0: 
michael@0: function promiseTabSelect() {
michael@0:   let deferred = Promise.defer();
michael@0:   let container = window.gBrowser.tabContainer;
michael@0:   let timeoutId = setTimeout(() => {
michael@0:     container.removeEventListener("TabSelect", callback);
michael@0:     deferred.reject("TabSelect did not happen within 20 seconds");
michael@0:   }, kTimeoutInMS);
michael@0:   function callback(e) {
michael@0:     container.removeEventListener("TabSelect", callback);
michael@0:     clearTimeout(timeoutId);
michael@0:     executeSoon(deferred.resolve);
michael@0:   };
michael@0:   container.addEventListener("TabSelect", callback);
michael@0:   return deferred.promise;
michael@0: }