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: // This test makes sure that about:privatebrowsing does not appear zoomed in
michael@0: // if there is already a zoom site pref for about:blank (bug 487656).
michael@0: 
michael@0: function test() {
michael@0:   // initialization
michael@0:   waitForExplicitFinish();
michael@0:   let windowsToClose = [];
michael@0:   let windowsToReset = [];
michael@0: 
michael@0:   function doTestWhenReady(aIsZoomedWindow, aWindow, aCallback) {
michael@0:     // Need to wait on two things, the ordering of which is not guaranteed:
michael@0:     // (1) the page load, and (2) FullZoom's update to the new page's zoom
michael@0:     // level.  FullZoom broadcasts "browser-fullZoom:location-change" when its
michael@0:     // update is done.  (See bug 856366 for details.)
michael@0: 
michael@0:     let n = 0;
michael@0: 
michael@0:     let browser = aWindow.gBrowser.selectedBrowser;
michael@0:     browser.addEventListener("load", function onLoad() {
michael@0:       browser.removeEventListener("load", onLoad, true);
michael@0:       if (++n == 2)
michael@0:         doTest(aIsZoomedWindow, aWindow, aCallback);
michael@0:     }, true);
michael@0: 
michael@0:     Services.obs.addObserver(function onLocationChange(subj, topic, data) {
michael@0:       Services.obs.removeObserver(onLocationChange, topic);
michael@0:       if (++n == 2)
michael@0:         doTest(aIsZoomedWindow, aWindow, aCallback);
michael@0:     }, "browser-fullZoom:location-change", false);
michael@0: 
michael@0:     browser.loadURI("about:blank");
michael@0:   }
michael@0: 
michael@0:   function doTest(aIsZoomedWindow, aWindow, aCallback) {
michael@0:     if (aIsZoomedWindow) {
michael@0:       is(aWindow.ZoomManager.zoom, 1,
michael@0:          "Zoom level for freshly loaded about:blank should be 1");
michael@0:       // change the zoom on the blank page
michael@0:       aWindow.FullZoom.enlarge();
michael@0:       isnot(aWindow.ZoomManager.zoom, 1, "Zoom level for about:blank should be changed");
michael@0:       aCallback();
michael@0:       return;
michael@0:     }
michael@0:     // make sure the zoom level is set to 1
michael@0:     is(aWindow.ZoomManager.zoom, 1, "Zoom level for about:privatebrowsing should be reset");
michael@0:     aCallback();
michael@0:   }
michael@0: 
michael@0:   function finishTest() {
michael@0:     // cleanup
michael@0:     windowsToReset.forEach(function(win) {
michael@0:       win.FullZoom.reset();
michael@0:     });
michael@0:     windowsToClose.forEach(function(win) {
michael@0:       win.close();
michael@0:     });
michael@0:     finish();
michael@0:   }
michael@0: 
michael@0:   function testOnWindow(options, callback) {
michael@0:     let win = whenNewWindowLoaded(options,
michael@0:       function(win) {
michael@0:         windowsToClose.push(win);
michael@0:         windowsToReset.push(win);
michael@0:         executeSoon(function() { callback(win); });
michael@0:       });
michael@0:   };
michael@0: 
michael@0:   testOnWindow({}, function(win) {
michael@0:     doTestWhenReady(true, win, function() {
michael@0:       testOnWindow({private: true}, function(win) {
michael@0:         doTestWhenReady(false, win, finishTest);
michael@0:       });
michael@0:     });
michael@0:   });
michael@0: }