F2.Constants.AppHandlers Class

var _token = F2.AppHandlers.getToken();
	                                    F2.AppHandlers.on(
	                                        _token,
	                                        F2.Constants.AppHandlers.APP_CREATE_ROOT,
	                                        function(appConfig)
	                                        {
	                                            // If you want to create a custom root. By default F2 uses the app's outermost HTML element.
	                                            // the app's html is not available until after the manifest is retrieved so this logic occurs in F2.Constants.AppHandlers.APP_RENDER
	                                            appConfig.root = document.createElement('section');
	                                        }
	                                    );

var _token = F2.AppHandlers.getToken();    F2.AppHandlers.on(        _token,        F2.Constants.AppHandlers.APP_DESTROY,        function(appInstance)        {            // call the apps destroy method, if it has one            if(appInstance && appInstance.app && appInstance.app.destroy && typeof(appInstance.app.destroy) == 'function')            {                appInstance.app.destroy();            }            else if(appInstance && appInstance.app && appInstance.app.destroy)            {                F2.log(appInstance.config.appId + ' has a destroy property, but destroy is not of type function and as such will not be executed.');            }

// remove the root            appInstance.config.root.parentNode.removeChild(appInstance.config.root);        }    );

var _token = F2.AppHandlers.getToken();    F2.AppHandlers.on(        _token,        F2.Constants.AppHandlers.APP_DESTROY_AFTER,        function(appInstance)        {            F2.log(appInstance);        }    );

var _token = F2.AppHandlers.getToken();
	                                    F2.AppHandlers.on(
	                                        _token,
	                                        F2.Constants.AppHandlers.APP_DESTROY_BEFORE,
	                                        function(appInstance)
	                                        {
	                                            F2.log(appInstance);
	                                        }
	                                    );

var _token = F2.AppHandlers.getToken();
	                                    F2.AppHandlers.on(
	                                        _token,
	                                        F2.Constants.AppHandlers.APP_MANIFEST_REQUEST_FAIL,
	                                        function(appConfig)
	                                        {
	                                            You can use information from the appConfig to surface a custom error message in the dom
	                                            Or display some kind of default error placeholder element rather than having a blank spot in the dom
	                                        }
	                                    );

var _token = F2.AppHandlers.getToken();    F2.AppHandlers.on(        _token,        F2.Constants.AppHandlers.APP_RENDER,        function(appConfig, appHtml)        {            // if no app root is defined use the app's outer most node            if(!appConfig.root)            {                appConfig.root = domify(appHtml);            }            else            {                // append the app html to the root                appConfig.root.appendChild(domify(appHtml));            }

// append the root to the body by default.            document.body.appendChild(appConfig.root);        }    );

var _token = F2.AppHandlers.getToken();
	                                    F2.AppHandlers.on(
	                                        _token,
	                                        F2.Constants.AppHandlers.APP_RENDER_AFTER,
	                                        function(appConfig)
	                                        {
	                                            F2.log(appConfig);
	                                        }
	                                    );

var _token = F2.AppHandlers.getToken();
	                                    F2.AppHandlers.on(
	                                        _token,
	                                        F2.Constants.AppHandlers.APP_RENDER_BEFORE,
	                                        function(appConfig)
	                                        {
	                                            F2.log(appConfig);
	                                        }
	                                    );

var _token = F2.AppHandlers.getToken(); F2.AppHandlers.on( _token, F2.Constants.AppHandlers.APP_SCRIPT_LOAD_FAILED, function(appConfig, scriptInfo) { F2.log(appConfig.appId); } );