The Tor Browser: browser/components/customizableui/test/browser_934951_zoom_in

     1 /* This Source Code Form is subject to the terms of the Mozilla Public

     2  * License, v. 2.0. If a copy of the MPL was not distributed with this

     3  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     5 "use strict";

     7 const kTimeoutInMS = 20000;

     9 // Bug 934951 - Zoom controls percentage label doesn't update when it's in the toolbar and you navigate.

    10 add_task(function() {

    11   CustomizableUI.addWidgetToArea("zoom-controls", CustomizableUI.AREA_NAVBAR);

    12   let tab1 = gBrowser.addTab("about:mozilla");

    13   let tab2 = gBrowser.addTab("about:newtab");

    14   gBrowser.selectedTab = tab1;

    15   let zoomResetButton = document.getElementById("zoom-reset-button");

    17   registerCleanupFunction(() => {

    18     info("Cleaning up.");

    19     CustomizableUI.reset();

    20     gBrowser.removeTab(tab2);

    21     gBrowser.removeTab(tab1);

    22   });

    24   is(parseInt(zoomResetButton.label, 10), 100, "Default zoom is 100% for about:mozilla");

    25   let zoomChangePromise = promiseObserverNotification("browser-fullZoom:zoomChange");

    26   FullZoom.enlarge();

    27   yield zoomChangePromise;

    28   is(parseInt(zoomResetButton.label, 10), 110, "Zoom is changed to 110% for about:mozilla");

    30   let tabSelectPromise = promiseTabSelect();

    31   gBrowser.selectedTab = tab2;

    32   yield tabSelectPromise;

    33   is(parseInt(zoomResetButton.label, 10), 100, "Default zoom is 100% for about:newtab");

    35   gBrowser.selectedTab = tab1;

    36   let zoomResetPromise = promiseObserverNotification("browser-fullZoom:zoomReset");

    37   FullZoom.reset();

    38   yield zoomResetPromise;

    39   is(parseInt(zoomResetButton.label, 10), 100, "Default zoom is 100% for about:mozilla");

    41   // Test zoom label updates while navigating pages in the same tab.

    42   FullZoom.enlarge();

    43   yield zoomChangePromise;

    44   is(parseInt(zoomResetButton.label, 10), 110, "Zoom is changed to 110% for about:mozilla");

    45   yield promiseTabLoadEvent(tab1, "about:home");

    46   is(parseInt(zoomResetButton.label, 10), 100, "Default zoom is 100% for about:home");

    47   yield promiseTabHistoryNavigation(-1, function() {

    48     return parseInt(zoomResetButton.label, 10) == 110;

    49   });

    50   is(parseInt(zoomResetButton.label, 10), 110, "Zoom is still 110% for about:mozilla");

    51 });

    53 function promiseObserverNotification(aObserver) {

    54   let deferred = Promise.defer();

    55   function notificationCallback(e) {

    56     Services.obs.removeObserver(notificationCallback, aObserver, false);

    57     clearTimeout(timeoutId);

    58     deferred.resolve();

    59   };

    60   let timeoutId = setTimeout(() => {

    61     Services.obs.removeObserver(notificationCallback, aObserver, false);

    62     deferred.reject("Notification '" + aObserver + "' did not happen within 20 seconds.");

    63   }, kTimeoutInMS);

    64   Services.obs.addObserver(notificationCallback, aObserver, false);

    65   return deferred.promise;

    66 }

    68 function promiseTabSelect() {

    69   let deferred = Promise.defer();

    70   let container = window.gBrowser.tabContainer;

    71   let timeoutId = setTimeout(() => {

    72     container.removeEventListener("TabSelect", callback);

    73     deferred.reject("TabSelect did not happen within 20 seconds");

    74   }, kTimeoutInMS);

    75   function callback(e) {

    76     container.removeEventListener("TabSelect", callback);

    77     clearTimeout(timeoutId);

    78     executeSoon(deferred.resolve);

    79   };

    80   container.addEventListener("TabSelect", callback);

    81   return deferred.promise;

    82 }

The Tor Browser / file revision