gecko/browser/components/customizableui/test/browser_934951_zoom_in_toolbar.js

83 lines
3.2 KiB
JavaScript

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
"use strict";
const kTimeoutInMS = 20000;
// Bug 934951 - Zoom controls percentage label doesn't update when it's in the toolbar and you navigate.
add_task(function() {
CustomizableUI.addWidgetToArea("zoom-controls", CustomizableUI.AREA_NAVBAR);
let tab1 = gBrowser.addTab("about:mozilla");
let tab2 = gBrowser.addTab("about:newtab");
gBrowser.selectedTab = tab1;
let zoomResetButton = document.getElementById("zoom-reset-button");
registerCleanupFunction(() => {
info("Cleaning up.");
CustomizableUI.reset();
gBrowser.removeTab(tab2);
gBrowser.removeTab(tab1);
});
is(parseInt(zoomResetButton.label, 10), 100, "Default zoom is 100% for about:mozilla");
let zoomChangePromise = promiseObserverNotification("browser-fullZoom:zoomChange");
FullZoom.enlarge();
yield zoomChangePromise;
is(parseInt(zoomResetButton.label, 10), 110, "Zoom is changed to 110% for about:mozilla");
let tabSelectPromise = promiseTabSelect();
gBrowser.selectedTab = tab2;
yield tabSelectPromise;
is(parseInt(zoomResetButton.label, 10), 100, "Default zoom is 100% for about:newtab");
gBrowser.selectedTab = tab1;
let zoomResetPromise = promiseObserverNotification("browser-fullZoom:zoomReset");
FullZoom.reset();
yield zoomResetPromise;
is(parseInt(zoomResetButton.label, 10), 100, "Default zoom is 100% for about:mozilla");
// Test zoom label updates while navigating pages in the same tab.
FullZoom.enlarge();
yield zoomChangePromise;
is(parseInt(zoomResetButton.label, 10), 110, "Zoom is changed to 110% for about:mozilla");
yield promiseTabLoadEvent(tab1, "about:home");
is(parseInt(zoomResetButton.label, 10), 100, "Default zoom is 100% for about:home");
yield promiseTabHistoryNavigation(-1, function() {
return parseInt(zoomResetButton.label, 10) == 110;
});
is(parseInt(zoomResetButton.label, 10), 110, "Zoom is still 110% for about:mozilla");
});
function promiseObserverNotification(aObserver) {
let deferred = Promise.defer();
function notificationCallback(e) {
Services.obs.removeObserver(notificationCallback, aObserver, false);
clearTimeout(timeoutId);
deferred.resolve();
};
let timeoutId = setTimeout(() => {
Services.obs.removeObserver(notificationCallback, aObserver, false);
deferred.reject("Notification '" + aObserver + "' did not happen within 20 seconds.");
}, kTimeoutInMS);
Services.obs.addObserver(notificationCallback, aObserver, false);
return deferred.promise;
}
function promiseTabSelect() {
let deferred = Promise.defer();
let container = window.gBrowser.tabContainer;
let timeoutId = setTimeout(() => {
container.removeEventListener("TabSelect", callback);
deferred.reject("TabSelect did not happen within 20 seconds");
}, kTimeoutInMS);
function callback(e) {
container.removeEventListener("TabSelect", callback);
clearTimeout(timeoutId);
executeSoon(deferred.resolve);
};
container.addEventListener("TabSelect", callback);
return deferred.promise;
}