michael@0: let Cu = Components.utils;
michael@0: let Cc = Components.classes;
michael@0: let Ci = Components.interfaces;
michael@0: 
michael@0: Components.utils.import("resource://gre/modules/Services.jsm");
michael@0: 
michael@0: // Call a function once initialization of SessionStartup is complete
michael@0: let afterSessionStartupInitialization =
michael@0:   function afterSessionStartupInitialization(cb) {
michael@0:     do_print("Waiting for session startup initialization");
michael@0:     let observer = function() {
michael@0:       try {
michael@0:         do_print("Session startup initialization observed");
michael@0:         Services.obs.removeObserver(observer, "sessionstore-state-finalized");
michael@0:         cb();
michael@0:       } catch (ex) {
michael@0:         do_throw(ex);
michael@0:       }
michael@0:     };
michael@0: 
michael@0:     // We need the Crash Monitor initialized for sessionstartup to run
michael@0:     // successfully.
michael@0:     Components.utils.import("resource://gre/modules/CrashMonitor.jsm");
michael@0:     CrashMonitor.init();
michael@0: 
michael@0:     // Start sessionstartup initialization.
michael@0:     let startup = Cc["@mozilla.org/browser/sessionstartup;1"].
michael@0:       getService(Ci.nsIObserver);
michael@0:     Services.obs.addObserver(startup, "final-ui-startup", false);
michael@0:     Services.obs.addObserver(startup, "quit-application", false);
michael@0:     Services.obs.notifyObservers(null, "final-ui-startup", "");
michael@0:     Services.obs.addObserver(observer, "sessionstore-state-finalized", false);
michael@0: };