The Tor Browser / file revision

 /* Any copyright is dedicated to the Public Domain.

    http://creativecommons.org/publicdomain/zero/1.0/ */

 var prefsBranch = Cc["@mozilla.org/preferences-service;1"].

                   getService(Ci.nsIPrefService).

                   getBranch("browser.panorama.");

 function animateZoom() prefsBranch.getBoolPref("animate_zoom");

 function test() {

   waitForExplicitFinish();

   let charsetArg = "charset=" + window.content.document.characterSet;

   let win = window.openDialog(getBrowserURL(), "_blank", "chrome,all,dialog=no",

                               "about:blank", charsetArg, null, null, true);

   registerCleanupFunction(function() {

     prefsBranch.setBoolPref("animate_zoom", true);

     win.close();

   });

   ok(animateZoom(), "By default, we animate on zoom.");

   prefsBranch.setBoolPref("animate_zoom", false);

   ok(!animateZoom(), "animate_zoom = false");

   let onLoad = function() {

     win.removeEventListener("load", onLoad, false);

     // a few shared references

     let tabViewWindow = null;

     let transitioned = 0;

     let initCallback = function() {

       tabViewWindow = win.TabView.getContentWindow();

       function onTransitionEnd(event) {

         transitioned++;

         info(transitioned);

       }

       tabViewWindow.document.addEventListener("transitionend", onTransitionEnd, false);

       // don't use showTabView() here because we only want to check whether 

       // zoom out animation happens. Other animations would happen before

       // the callback as waitForFocus() was added to showTabView() in head.js

       let onTabViewShown = function() {

         tabViewWindow.removeEventListener("tabviewshown", onTabViewShown, false);

         tabViewWindow.document.removeEventListener("transitionend", onTransitionEnd, false);

         ok(!transitioned, "There should be no transitions");

         finish();

       };

       tabViewWindow.addEventListener("tabviewshown", onTabViewShown, false);

       win.TabView.toggle();

     };

     win.TabView._initFrame(initCallback);

   }

   win.addEventListener("load", onLoad, false);

 }