JavaScript: SharePoint Survey Customizations

jquery.sp.survey.js

/**
 *  Checks to see if a string includes a substring
 *  Part of ECMA 6
 */
if (!String.prototype.includes) {
	String.prototype.includes = function() {
		'use strict';
		return String.prototype.indexOf.apply(this, arguments) !== -1;
	};
}

// Ensure the WPS class
_EnsureJSNamespace('WPS');
_EnsureJSNamespace('ClientSurvey');

// RNDC Options object
var ClientSurvey = ClientSurvey || {};
/**
 *  SharePoint Survey script
 *  
 *  Contains:
 *  	Utility functions
 *  	Script Class: Loads a non-SP script
 *  	User Class: Current user information
 *  	Web Class: SP Current context & opens web
 *  	List Class: Gets current or specific list
 *  	Survey Class (extends List)
 */
(function(jQ, window, document, ClientSurvey) {
	"use strict";
	
	var $ = jQ.noConflict(),
		debug = true,
		wps = {
			utils: {}
		},
		utils = wps.utils,
		defaults = {
			hide: {
				ListActionsMenu: true,
				SaveAndClose: false,
				ViewSelectorMenu: true
			},
			remove: {
				//Show all responses = diidResultsByUser
				AllResponses: true,
				//Show a graphical summary of responses = diidSurveyResults
				GraphicalSummary: true
			},
			redirectPage: "/Pages/ThankYou.aspx"
		},
		OPTIONS = {};
	
	// Set the options we are going to follow
	OPTIONS = $.extend({}, defaults, ClientSurvey);
			
	
	/** UTILS **/
	/**
	 *  Performs any REST calls to SharePoint
	 *  
	 *  @param {string} endpoint REST endpoint being called. Endpoint needs to include beginning "/"
	 *  @param {function} success Called on AJAX success.
	 *  @param {function} error Called on AJAX error.
	 *  @param {object} scope Scope to be carried forward.
	 */
	utils.doAjax = function(endpoint, success, error, scope) {
		return $.ajax({
			url: _spPageContextInfo.webAbsoluteUrl + endpoint,
			type: "POST",
			contentType: "application/json;odata=verbose",
			headers: {
				'accept' : 'application/json;odata=verbose',
				'X-RequestDigest': $('#__REQUESTDIGEST').val(),
			},
			success: function (data) {
				utils.callCb(success, data, this);
			},
			error: function (jqxr, errorCode, errorThrown) {
				console.log(jqxr.responseText);
				utils.callCb(error, {jqxr:jqxr, errorCode:errorCode, errorThrown:errorThrown}, this);
			}
		});
	};
	
	/**
	 *  Determines whether the variable is a function.
	 *  
	 *  @param {function} fn Variable to determine whether it is a function.
	 *  @returns {boolean} Whether variable is a function.
	 */
	utils.isFunction = function (fn) {
		return ("function" === typeof fn);
	};
	
	/**
	 *  Performs a sanitized callback
	 *  
	 *  @param {function} Function to be called.
	 *  @param {object} Argument(s) to be passed to function being called.
	 *  @param {object} Scope (e.g., this).
	 *  @returns {mixed} Function results or null.
	 */
	utils.callCb = function(fn, args, scope) {
		if (utils.isFunction(fn)) {
			if (scope) {
				return fn.apply(scope, [args]);
			} else {
				return fn.call(scope, args);
			}
		}
		return null;
	};
	
	/**
	 *  Gets the length of an object (number of key:value)
	 *  
	 *  @param {object} Object being measured.
	 *  @returns {integer} Length of the object.
	 */
	utils.getObjectLength = function(obj) {
		var size = 0, key;
		for (key in this) {
			if (obj.hasOwnProperty(key)) size++;
		}
		return size;
	};
	
	/**
	 *  Executes a SharePoint context Async Query.
	 *  
	 *  @param {SP.ClientContext} ctx SharePoint Context.
	 *  @param {object} scope Scope to be maintained.
	 *  @param {function} Function called on successful query.
	 *  @param {function} Function called on failed query. 
	 */
	utils.execute = function(ctx, scope, onSuccess, onFail) {
		ctx.executeQueryAsync(
			Function.createDelegate(scope, onSuccess),
			Function.createDelegate(scope, function(sender, args) {
				console.log('Request failed. ' + args.get_message() + '\n' + args.get_stackTrace());
				utils.callCb(onFail, {sender: sender, args: args}, scope);
			})
		);
	};
	
	/** WEB **/
	/**
	 *  Web Type
	 *  @typedef Web
	 *  @type {object}
	 *  @property {SP.ClientContext} context SP Context.
	 *  @property {SP.Web} web SP Site.
	 */
	 
	/**
	 *  Web Function Class
	 *  
	 *  @class
	 */
	function Web() {
		this.context = new SP.ClientContext.get_current();
		this.web = this.context.get_web(); 
	}
	
	
	/** MODAL **/
	/**
	 *  Modal Type
	 *  @typedef Modal
	 *  @type {object}
	 *  @property {string} type Either "normal" or "wait".
	 *  @property {string} title Title of modal.
	 *  @property {string} waitMsg Message to be displayed.
	 *  @property {integer} height Height of modal dialogue.
	 *  @property {integer} width Width of modal dialogue.
	 *  @property {SP.UI.Dialogue} _dialogue
	 *  @property {string} state "opened" or "closed"
	 *  @property {boolean} ready Whether modal is ready to be used.
	 *  @property {SP.UI.DialogueOptions} options Options for SP Dialogue.
	 */
	
	/**
	 *  Modal class
	 *  
	 *  @class
	 */
	function Modal(options, type) {
		// Default values for options (SP.UI.DialogueOptions).
		var defaults = this.getDefaults();
		
		if (type) {
			this.type = type;
		} else {
			if ('object' === typeof options && (options.url || options.html)) {
				this.type = 'normal';
			} else {
				this.type = 'wait';
			}
		}
		this._dialogue = null;
		this.state = 'closed';
		this.ready = false;
		SP.SOD.executeFunc('sp.js', 'SP.ClientContext',
			Function.createDelegate(this, function(){
				SP.SOD.executeFunc('sp.ui.dialog.js', 'SP.UI.ModalDialog.showModalDialog',
					Function.createDelegate(this, function(){
						this.ready = true;
						this.options = SP.UI.$create_DialogOptions();
						this.options = $.extend(this.options, defaults, (options || {}));
					})
				);
			})
		);
	}
	
	/**
	 *  Default values for options (SP.UI.DialogueOptions).
	 *  
	 *  @method
	 *  @returns {object} Default values.
	 */
	Modal.prototype.getDefaults = function() {
		return {
			title: '',
			url: undefined,
			html: undefined,
			x: null,
			y: null,
			width: 300,
			height: 300,
			//autoSizeStartWidth: false,
			allowMaximize: false,
			showMaximized: false,
			showClose: true,
			autoSize: true,
			dialogReturnValueCallback: undefined,
			args: {}
		};
	};
	
	/**
	 *  Gets HTML
	 *  
	 *  @method
	 *  @param {string} Content to be placed in an HTML element.
	 *  @returns {object} DOM Element HTML div.
	 */
	Modal.prototype.getHTML = function(content) {
		if ('object' === typeof this.options.html) {
			return this.options.html;
		}
		
		var element = document.createElement('div');
		if ('string' === typeof this.options.html && this.options.html) {
			element.innerHTML = this.options.html;
		} else if ('undefined' !== typeof content) {
			element.innerHTML = content;
		}
		this.options.html = element;
		return this.options.html;
	};
	
	/**
	 *  Get title of modal.
	 *  
	 *  @returns {string} Title of modal.
	 */
	Modal.prototype.getTitle = function() {
		return this.title || $('title').text();
	};
	
	/**
	 *  Shows the modal dialogue.
	 */
	Modal.prototype.show = function() {
		if (!this.ready) {
			return false;
		}
		if ('normal' === this.type) {
			if (this.options.html || !this.options.url) {
				this.options.html = this.getHTML();
			}
			
			this.options.title = this.options.title || this.getTitle();
			this._dialogue = SP.UI.ModalDialog.showModalDialog(this.options);
			this.state = 'opened';
		} else {
			this.showWait();
		}
	};
	
	/**
	 *  Shows waiting modal dialogue.
	 */
	Modal.prototype.showWait = function() {
		this.title = this.title || SP.Res.dialogLoading15;
		this.waitMsg = this.waitMsg || null;
		this.height = this.height || 138;
		this.width = this.width || 365;
		
		try {
			if (this._dialogue === null) {
				this._dialogue = SP.UI.ModalDialog.showWaitScreenWithNoClose(this.title, this.waitMsg, this.height, this.width);
				this.state = 'opened';
			}
		} catch (ex) { }
	};
	
	/**
	 *  Closes the modal dialogue.
	 *  
	 *  @method
	 */
	Modal.prototype.close = function() {
		try {
			this._dialogue.close();
			this.state = 'closed';
		} catch (ex) { }
	};
	
	/**
	 *  Opens a waiting dialogue with no close button.
	 *  
	 *  @method
	 */
	Modal.prototype.working = function() {
		try {
			this._dialogue = SP.UI.ModalDialog.showWaitScreenWithNoClose(SP.Res.dialogLoading15);
			this.state = 'opened';
		} catch (ex) { }
	};
	
	
	/** SCRIPT **/
	/**
	 *  Script Type
	 *  @typedef Script
	 *  @type {object}
	 *  @property {boolean} loaded Whether the script has been loaded or not.
	 *  @property {function} callback Function to be called when loaded.
	 *  @property {object} element DOM HTML script element.
	 *  @property {string} src Source of the script.
	 */
	 
	/**
	 *  Script Function Class
	 *  
	 *  @class
	 */
	function Script(src, cb) {
		this.loaded = false;
		this.callback = 'function' === typeof cb ? cb : undefined;
		this.element = document.createElement('script');
		this.src = this.element.src = src;
		// debugger;
		this.element.onload = this.element.onreadystatechange = Function.createDelegate(this, function () {
			if (!this.loaded && (!this.element.readyState || this.element.readyState == 'loaded' || this.element.readyState == 'complete')) {
				this.loaded = true;
				utils.callCb(this.callback, null, this);
				this.element.onload = this.element.onreadystatechange = null;
			}
		});
	}
	
	/**
	 *  Loads the script into the DOM through normal HTML means.
	 *  
	 *  @method
	 */
	Script.prototype.load = function() {
		var head = document.getElementsByTagName('head')[0];
		if (this.src) {
			head.appendChild(this.element);
		}
	};
	
	/**
	 *  SPScript Type
	 *  @typedef SPScript
	 *  @type {object}
	 *  @property {boolean} loaded Whether the script has been loaded or not.
	 *  @property {function} callback Function to be called when loaded.
	 *  @property {object} element DOM HTML script element.
	 *  @property {string} src Source of the script.
	 */
	 
	/**
	 *  Loads the script into
	 */
	function SPScript(name, cb) {
		Script.call(this, name, cb);
		//this.load();
	}
	SPScript.prototype = Object.create(Script.prototype);
	SPScript.prototype.constructor = SPScript;
	
	/**
	 *  Loads the script by SP means.
	 *  
	 *  @param {function} callAfterFn Callback function.
	 */
	SPScript.prototype.load = function(callAfterFn) {
		callAfterFn = callAfterFn || 'SP.ClientContext'; // '_spBodyOnLoadCalled';
		SP.SOD.executeFunc(this.name, callAfterFn, function(){
			console.log(this.name + ' loaded');
			utils.callCb(this.cb);
		});
	};
	
	
	/** USER **/
	/**
	 *  User Type
	 *  @typedef User
	 *  @type {object}
	 *  @property {integer} Id User ID.
	 *  @property {Web} site SP Web.
	 *  @property {SP.User} waitMsg Message to be displayed.
	 *  @property {Permissions} permissions User Permissions
	 */
	
	/**
	 *  Permissions Type
	 *  @typedef Permissions
	 *  @type {object}
	 *  @property {SP.BasePermissions} base SharePoint Permissions.
	 *  @property {boolean} loaded Whether the permissions have been loaded.
	 */
	
	/**
	 *  User class
	 *  
	 *  @class
	 *  @requires {@link Web}
	 */
	function User(id) {
		this.Id = id || undefined;
		this.site = new Web();
		this.currentUser = this.site.web.get_currentUser();
		this.permissions = {
			base: new SP.BasePermissions(),
			loaded: false
		};

		/**
		 *  Gets user by ID.
		 *  
		 *  @method
		 *  @param {function} onSuccess Called on AJAX success.
		 *  @param {function} onFail Called on AJAX error.
		 */
		this.getUserById = function(onSuccess, onFail) {
			utils.doAjax(
				'/_api/Web/GetUserById(' + this.Id + ')',
				onSuccess,
				onFail
			);
		};
	}
	
	/**
	 *  Get the SharePoint permission kind (integer)
	 *  
	 *  @method
	 *  @param {string} per Permission by string.
	 *  @returns {integer} SP.PermissionKind Integer.
	 */
	User.prototype.getPermissionKind = function(per) {
		return SP.PermissionKind[per];
	};
	
	/**
	 *  Gets all SP Permission Kinds
	 *  
	 *  @method
	 *  @returns {object} Associative array of Permission - SP.PermissionKind value.
	 */
	User.prototype.getPermissionKinds = function() {
		return {
				emptyMask: SP.PermissionKind.emptyMask, // Has no permissions on the Web site. Not available through the user interface.
				viewListItems: SP.PermissionKind.viewListItems, // View items in lists, documents in document libraries, and Web discussion comments.
				addListItems: SP.PermissionKind.addListItems, // Add items to lists, add documents to document libraries, and add Web discussion comments.
				editListItems: SP.PermissionKind.editListItems , // Edit items in lists, edit documents in document libraries, edit Web discussion comments in documents, and customize Web Part Pages in document libraries.
				deleteListItems: SP.PermissionKind.deleteListItems, // Delete items from a list, documents from a document library, and Web discussion comments in documents.
				approveItems: SP.PermissionKind.approveItems, // Approve a minor version of a list item or document.
				openItems: SP.PermissionKind.openItems, // View the source of documents with server-side file handlers.
				viewVersions: SP.PermissionKind.viewVersions, // View past versions of a list item or document.
				deleteVersions: SP.PermissionKind.deleteVersions, // Delete past versions of a list item or document.
				cancelCheckout: SP.PermissionKind.cancelCheckout, // Cancel or check in a document that is checked out to another user.
				managePersonalViews: SP.PermissionKind.managePersonalViews, // Create, change, and delete personal views of lists.
				manageLists: SP.PermissionKind.manageLists, // Create and delete lists, add or remove columns in a list, and add or remove public views of a list.
				viewFormPages: SP.PermissionKind.viewFormPages, // View forms, views and application pages, and enumerate lists.
				open: SP.PermissionKind.open, // Open a Web site, list, or folder to access items inside the container.
				viewPages: SP.PermissionKind.viewPages, // View pages in a Web site.
				addAndCustomizePages: SP.PermissionKind.addAndCustomizePages, // Add, change, or delete HTML pages, and edit the Web site using an editor that is compatible with Microsoft SharePoint Server 2010.
				applyThemeAndBorder: SP.PermissionKind.applyThemeAndBorder, // Apply a theme or borders to the Web site.
				applyStyleSheets: SP.PermissionKind.applyStyleSheets, // Apply a style sheet (.css file) to the Web site.
				viewUsageData: SP.PermissionKind.viewUsageData, // View reports on Web site usage.
				createSSCSite: SP.PermissionKind.createSSCSite, // Create a Web site using Self-Service Site Creation.
				manageSubwebs: SP.PermissionKind.manageSubwebs, // Create subsites such as team sites, Meeting Workspace sites, and Document Workspace sites.
				createGroups: SP.PermissionKind.createGroups, // Create a group of users that can be used anywhere within the site collection.
				managePermissions: SP.PermissionKind.managePermissions, // Create and change permission levels on the Web site and assign permissions to users and groups.
				browseDirectories: SP.PermissionKind.browseDirectories, // Enumerate files and folders on a site using Microsoft SharePoint Designer and WebDAV interfaces.
				browseUserInfo: SP.PermissionKind.browseUserInfo, // View information about the users of the Web site.
				addDelPrivateWebParts: SP.PermissionKind.addDelPrivateWebParts, // Add or remove personal Web Parts on a Web Part Page.
				updatePersonalWebParts: SP.PermissionKind.updatePersonalWebParts, // Update Web Parts to display personalized information.
				manageWeb: SP.PermissionKind.manageWeb, // Grant the ability to perform all administration tasks for the Web site and manage Web site content.
				useClientIntegration: SP.PermissionKind.useClientIntegration, // Launch client applications on the server. Otherwise, users must work on documents locally and upload changes.
				useRemoteAPIs: SP.PermissionKind.useRemoteAPIs, // Use SOAP, WebDAV, or Microsoft SharePoint Designer interfaces to access the Web site.
				manageAlerts: SP.PermissionKind.manageAlerts, // Manage alerts for all users of the Web site.
				createAlerts: SP.PermissionKind.createAlerts, // Create e-mail alerts.
				editMyUserInfo: SP.PermissionKind.editMyUserInfo, // Change user information, such as adding a picture.
				enumeratePermissions: SP.PermissionKind.enumeratePermissions, // Enumerates permissions on the Web site, list, folder, document, or list item.
				fullMask: SP.PermissionKind.fullMask // Has all permissions on the Web site. Not available through the user interface.
			};
	};
	
	/**
	 *  Determine whether a user has a specific permission
	 *  
	 *  @method
	 *  @param {string|integer} permission Permission (SP.PermissionKind integer) being checked.
	 *  @returns {boolean} Whether the current user has the permission.
	 */
	User.prototype.hasPermission = function(permission) {
		if (this.permissions.loaded && 'function' === typeof this.has) {
			if ('string' === typeof permission) {
				// return this.has(this.getPermissionKind(permission));
				return this.has(SP.PermissionKind[permission]);
			}
			return this.has(permission);
		} else {
			return null;
		}
	};
	
	/**
	 *  Loads the current user's permissions.
	 *  
	 *  @method
	 *  @param {function} onSuccess Called on async query success.
	 *  @param {function} onFail Called on async query fail.
	 */
	User.prototype.loadPermissions = function(onSuccess, onFail) {
		this.site.context.load(this.currentUser);
		this.site.context.load(this.site.web, 'EffectiveBasePermissions');
		this.execute(
			Function.createDelegate(this, function(clientRequest, args) {
				this.permissions.loaded = true;
				this.has = this.site.web.get_effectiveBasePermissions().has;
				utils.callCb(onSuccess, {request: clientRequest, args: args}, this);
			}),
			function(data) {
				console.log('Request failed. ' + data.args.get_message() + '\n' + data.args.get_stackTrace());
				utils.callCb(onFail, data, this);
			}
		);
	};
	
	/**
	 *  Loads stuff into SP Client Context.
	 *  
	 *  @method
	 *  @param {object} stuff Things to be loaded into the SP context.
	 *  @param {function} success Called on AJAX success.
	 *  @param {function} error Called on AJAX error.
	 */
	User.prototype.load = function(stuff, onSuccess, onFail) {
		this.site.context.load(stuff);
		this.execute(
			Function.createDelegate(this, onSuccess),
			function(sender, args) {
				console.log('Request failed. ' + args.get_message() + '\n' + args.get_stackTrace());
				utils.callCb(onFail, {sender: sender, args: args}, this);
			}
		);
	};
	
	/**
	 *  Executes an async function on the SP Context.
	 *  
	 *  @method
	 *  @param {function} onSuccess Called on async query success.
	 *  @param {function} onFail Called on async query fail.
	 */
	User.prototype.execute = function(onSuccess, onFail) {
		utils.execute(this.site.context, this, onSuccess, onFail);
	};
	
	/**
	 *  Gets the current user's information via REST
	 *  
	 *  @method
	 */
	User.prototype._getCurrentUser = function() {
		if (this._currentUser) {
			return this._currentUser;
		}
		
		utils.doAjax(
			'/_api/sp.userprofiles.peoplemanager/GetMyProperties',
			function (data) {
				console.log(data);
				this._currentUser = data.d;
			}
		);
	};
	
	
	/** LIST **/
	/**
	 *  List Type
	 *  @typedef List
	 *  @type {object}
	 *  @property {Web} site SP Web.
	 *  @property {SP.ListCollection} lists SP Lists.
	 *  @property {SP.List} list SP List.
	 *  @property {boolean} loaded Whether the list has been loaded into the SP Context.
	 *  @property {integer} templateId List template ID.
	 *  @property {string} name Name/Title of list.
	 */
	 
	/**
	 *  List class
	 *  
	 *  @class
	 *  @requires {@link Web}
	 */
	function List(name) {
		this.site = new Web();
		this.list = undefined;
		this.lists = undefined;
		this.loaded = false;
		this.templateId = g_wsaListTemplateId;
		this.name = name || undefined;
		
		this.loadList();
	}
	
	/**
	 *  Loads the list in the context.
	 */
	List.prototype.loadList = function() {
		this.list = this.getList();
		this.load(this.list, function() {
			this.loaded = true;
			this.baseTemplate = this.list.get_baseTemplate();
			this.baseType = this.list.get_baseType();
			//this.items = this.list.getItems();
			this.title = this.list.get_title();
			this.description = this.list.get_description();
			this.contentTypes = this.list.get_contentTypes();
		});
	};
	
	/**
	 *  Loads stuff into SP Client Context.
	 *  
	 *  @method
	 *  @param {object} stuff Things to be loaded into the SP context.
	 *  @param {function} success Called on AJAX success.
	 *  @param {function} error Called on AJAX error.
	 */
	List.prototype.load = function(stuff, onSuccess, onFail) {
		this.site.context.load(stuff);
		this.execute(onSuccess, onFail);
	};
	
	/**
	 *  Executes an async function on the SP Context.
	 *  
	 *  @method
	 *  @param {function} onSuccess Called on async query success.
	 *  @param {function} onFail Called on async query fail.
	 */
	List.prototype.execute = function(onSuccess, onFail) {
		utils.execute(this.site.context, this, onSuccess, onFail);
	};
	
	/**
	 *  Gets the SP list (via JSOM).
	 *  
	 *  @returns {SP.List} SP List.
	 */
	List.prototype.getList = function () {
		if (this.lists && this.list) {
			return this.list;
		}
		this.lists = this.site.web.get_lists();
		if (this.name) {
			this.list = this.lists.getByTitle(this.name);
		} else {
			this.list = this.lists.getById(_spPageContextInfo.pageListId);
		}
		return this.list;
	};
	
	/**
	 *  Gets the fields of a SP List (via REST).
	 */
	List.prototype.getFields = function() {
		utils.doAjax(
			"/_api/lists/getbytitle('" + this.name + "')?$select=Fields&$expand=Fields",
			// success
			function (data) {
				this.fields = data.d.Fields.results;
				for (i = 0; i < fields.length; i++) {
					console.log(
							"Title: " + fields[i].Title + " | " +
							"Internal Name: " + fields[i].InternalName + " | " +
							"Type: " + fields[i].TypeAsString + " | " +
							"GUID: " + fields[i].Id + " "
					);
				}
			}
		);
	};
	
	
	/** SURVEY **/
	/**
	 *  Survey Type
	 *  @typedef Survey
	 *  @type {object}
	 *  @property {Web} site SP Web.
	 *  @property {SP.ListCollection} lists SP Lists.
	 *  @property {SP.List} list SP List.
	 *  @property {boolean} loaded Whether the list has been loaded into the SP Context.
	 *  @property {integer} templateId List template ID.
	 *  @property {string} name Name/Title of list.
	 */
	 
	/**
	 *  Survey class
	 *  
	 *  @class
	 *  @requires {@link Web}
	 *  @requires {@link List}
	 *  @requires {@link Modal}
	 */
	function Survey(name) {
		List.call(this, name);
	}
	Survey.prototype = Object.create(List.prototype);
	Survey.prototype.constructor = Survey;
	
	/**
	 *  Gets the number of survey submissions made.
	 *  
	 *  @method
	 *  @param {function} User Survey Callback.
	 */
	Survey.prototype.getUserSurveySubmissions = function(userSurveyCb) {
		var items, 
			query = new SP.CamlQuery();
		
		query.set_viewXml('<View><Where><Eq><FieldRef Name="Author"/><Value Type="Integer"><UserID Type="Integer"/></Value></Eq></Where></View>');
		
		items = this.list.getItems(query);
		this.load(items,
			Function.createDelegate(this, function() {
				var submissionCount = items.get_count();
				console.log('getSubmissions Success');
				utils.callCb(userSurveyCb, submissionCount, this);
			}),
			Function.createDelegate(this, function() {
				console.log('getSubmissions Failed');
				utils.callCb(userSurveyCb, null, this);
			})
		);
	};
	
	/**
	 *  Hides a specific element.
	 *  
	 *  @method
	 *  @uses action
	 *  @param {string} option Option for action to be taken.
	 */
	Survey.prototype.hide = function(option) {
		this.action('hide', option);
	};
	
	/**
	 *  Hides a specific elements.
	 *  
	 *  @method
	 *  @uses actionItems
	 *  @param {object} items Items for hide action to be taken.
	 */
	Survey.prototype.hideItems = function(items) {
		this.actionItems('hide', items);
	};
	
	/**
	 *  Hides a specific element.
	 *  
	 *  @method
	 *  @uses action
	 *  @param {string} option Option for action to be taken.
	 */
	Survey.prototype.remove = function(option) {
		this.action('remove', option);
	};
	
	/**
	 *  Removes a specific elements.
	 *  
	 *  @method
	 *  @uses actionItems
	 *  @param {object} items Items for remove action to be taken.
	 */
	Survey.prototype.removeItems = function(items) {
		this.actionItems('remove', items);
	};
	
	/**
	 *  Takes action on a specific element.
	 *  Possible actions: "hide" or "remove"
	 *  
	 *  @method
	 *  @param {string} action Action to be taken.
	 *  @param {string} option Item/option for action to be taken.
	 */
	Survey.prototype.action = function(action, option) {
		var jQelement,
			selectors = {
				AllResponses: "#diidResultsByUser",
				GraphicalSummary: "#diidSurveyResults",
				ListActionsMenu: "id$='ListActionsMenu'",
				ViewSelectorMenu: "id$='ViewSelectorMenu'",
				SaveAndClose: "input[type='button']"
			};
		if (!selectors[option]) {
			return;
		}
		
		switch(option) {
			case 'ViewSelectorMenu':
				// console.log(action + ' ViewSelectorMenu');
				jQelement = $("a[id$='ViewSelectorMenu']").closest('table').closest('td');
				break;
			case 'ListActionsMenu':
				// console.log(action + ' ListActionsMenu');
				jQelement = $("a[id$='ListActionsMenu']").closest('td');
				break;
			case 'SaveAndClose':
				// console.log(action + ' SaveAndClose');
				jQelement = $(selectors[option]);
				/*
				var x = document.getElementsByTagName("input");
				for (var i=0; i < x.length; i++) {
					if (x.item(i).type === "button" && x.item(i).value === "Save and Close") {
						x.item(i).style.display = "none";
					}
				}
				*/
				break;
			default:
				// console.log('default: ' + action + ' ' + option);
				jQelement = $(selectors[option]).closest('tr');
				break;
		}
		
		switch(action) {
			case 'hide':
				jQelement.hide();
				break;
			case 'remove':
				jQelement.remove();
				break;
		}
	};
	
	/**
	 *  Takes action on a specific elements.
	 *  
	 *  @method
	 *  @uses actionItems
	 *  @param {string} action Action to be taken.
	 *  @param {object} items Items for action to be taken.
	 */
	Survey.prototype.actionItems = function(action, items) {
		for (var key in items) {
			if (items.hasOwnProperty(key) && items[key]) {
				this.action(action, key);
			}
		}
	};
	
	/**
	 *  Adds a good UX for response error message.
	 */
	Survey.prototype.addSingleResponseErrorMessage = function() {
		var that = this;
		window.NewItem2 = (function () {
			var NewItem2Orig = window.NewItem2;
			
			return Function.createDelegate(that, function() {
				var evt = arguments[0];
				var url = arguments[1];

				//Read survey for current user to find out if he have already submitted   
				that.getUserSurveySubmissions(function(submissionsCount){
					//if submitted then display custom message 
					if (submissionsCount > 0) {
						// debugger;
						console.log('You have already submitted to this survey.');
						var d = new Modal({title: 'You have already submitted to this survey.'}, 'normal');
						d.show();
					}
					//if not, call original function for opening response form
					else {
						// debugger;
						NewItem2Orig(evt, url);
					} 
				});
			});

		})();
	};
	
	
	/** FUNCTIONS **/
	/**
	 *  Determines whether the current context/list is a SharePoint list via JSOM.
	 *  
	 *  @private
	 *  @link http://joelblogs.co.uk/2011/06/16/sharepoint-2010-base-types-list-template-and-definition-ids-and-content-types-ids/
	 *  @param {string} guid GUID of the current List.
	 */
	function _isSurvey(guid) {
		guid = guid || _spPageContextInfo.pageListId;
		var deferred = $.Deferred(),
			site = new Web(),
			lists = site.web.get_lists(),
			list = lists.getById(guid);
		
		site.context.load(list);
		site.context.executeQueryAsync(
			Function.createDelegate(this, function(clientRequest, args) {
				if(4 === list.get_baseType() || 102 === list.get_baseTemplate()) {
					var s = new Survey(list.get_title());
					deferred.resolve(s);
				} else {
					deferred.resolve(false);
				}
			}),
			Function.createDelegate(this, function(sender, args) {
				var msg = 'Request failed. ' + args.get_message() + '\n' + args.get_stackTrace();
				console.log(msg);
				deferred.resolve(false);
			})
		);
		
		return deferred.promise();
		// return deferred.resolve().pipe(function(d){console.log('PIPED RESULT: ' + d); return d;});
		//return deferred.resolve()
	}
	
	/**
	 *  Determines whether the current context/list is a SharePoint list by list template ID.
	 *  
	 *  @private
	 *  @param {integer} id ID of current list template.
	 *  @returns {boolean|null} Whether the current list is a Survey List.
	 */
	function _isSurveyByTemplate(id) {
		id = id || g_wsaListTemplateId;
		if ('undefined' !== typeof id) {
			return (102 === id);
		}
		return null;
	}
	
	/**
	 *  Determines whether the current context/list is a SharePoint list by list type ID.
	 *  
	 *  @private
	 *  @param {integer} id ID of current list type.
	 *  @returns {boolean|null} Whether the current list is a Survey List.
	 */
	function _isSurveyByType(id) {
		if ('undefined' !== typeof id) {
			return (4 === id);
		}
		return null;
	}
	
	/**
	 *  Determines whether the current context/list is a SharePoint list.
	 *  
	 *  @private
	 *  @param {integer} id ID of current list type.
	 *  @returns {boolean|null} Whether the current list is a Survey List.
	 */
	function isSurvey(id) {
		id = id || g_wsaListTemplateId;
		if ('undefined' === typeof id) {
			if ('undefined' !== typeof ctx) {
				id = ctx.listTemplate || ctx.listBaseType;
			}
		}
		if ('undefined' !== typeof id) {
			return (102 === +id || 4 === +id);
		}
		
		// Still unsure what we have!
		return null;
	}
	
	/**
	 *  Add isSurvey to the List Class
	 *  
	 *  @see isSurvey
	 *  @method
	 */
	List.prototype.isSurvey = isSurvey;
	
	/**
	 *  Determines whether the current context/page contains a Survey (web part) via REST.
	 *  
	 *  @private
	 */
	wps.containsSurvey = function () {
		// Check for List Web Parts using ECB (Edit Control Block)
		$('div[id^="ECBItems_"]').each(function (i,e) {
			var m,
				re = /{([a-zA-Z0-9-]*)}/;
			
			if ((m = re.exec($(e).attr('id'))) !== null) {
				if (m.index === re.lastIndex) {
					re.lastIndex++;
				}
				
				utils.doAjax(
					"/_api/Web/Lists(guid'" + m[1] + "')",
					function(data) {
						if (isSurvey(data.d.BaseTemplate)) {
							// Got Survey!!
							var s = new Survey(data.d.Title);
							wps.doSurvey(s);
						}
					},
					null,
					this
				);
				// View your result using the m-variable.
				// eg m[ 0] etc.
			}

			// Regex, parse ID attributes
			// Check to see if list is a survey via _isSurvey(name)
		});
	};
	
	/**
	 *  Starts everything off!!
	 *  
	 *  @private
	 *  @function
	 */
	wps.init = function() {
		// For responsiveness, let's get rid of empty blank images
		$('img').each(function(i,e) {
			if ($(e).attr('src').includes('blank.gif')) {
				$(e).attr('width', 1);
			}
		});
		
		// Let's GO!!
		SP.SOD.executeFunc('sp.js', 'SP.ClientContext', function() {
			wps.run();
		});
	};
	
	/**
	 *  The Initial Work Horse. Loads the User, User's permissions, & checks the context for a survey.
	 *  
	 *  @private
	 *  @function
	 */
	wps.run = function() {
		wps.user = new User();
		wps.user.loadPermissions(function() {
			console.log('Permissions loaded');
			wps.checkSurvey();
		}, function() {
			console.log('Permissions failed');
		});
	};
	
	/**
	 *  Checking for Survey List
	 *  
	 *  @function
	 *  @private
	 */
	wps.checkSurvey = function() {
		// Check if we have a survey
		var amIaSurveyPage = isSurvey();
		
		if (null === amIaSurveyPage) {
			console.log('amIaSurveyPage: UNSURE, val: null');
			// Means we still are not sure what we have...
			_isSurvey().then(function(d){
				if (d) {
					console.log('AFTER _isSurvey: ');
					console.log(d);
					wps.doSurvey(d);
				}
			});
		} else if (false !== amIaSurveyPage) {
			console.log('Have a survey! doSurvey w/o sending List information');
			wps.doSurvey();
		} else {
			console.log('Does page contain survey: running wps.containsSurvey()');
			// Check if page contains a survey
			wps.containsSurvey();
		}
		
	};
	
	/**
	 *  The Survey Work. Hides/Removes used & adds UX Single Response Error Message.
	 *  
	 *  @private
	 *  @function
	 *  
	 *  @param {Survey} s Survey list.
	 */
	wps.doSurvey = function(s) {
		if ('undefined' === s || 'undefined' === typeof s) {
			s = new Survey();
		}
		
		console.log("wps.user.hasPermission('manageweb')");
		if (!wps.user.hasPermission('manageWeb')) {
			s.hideItems(OPTIONS.hide);
			s.removeItems(OPTIONS.remove);
		} else {
			console.log('Not hiding anything for admins');
		}
		
		// Prevent Ugly Error Page if User has taken Survey
		//window.PreSaveItem = wps.PreSaveItem;
		s.addSingleResponseErrorMessage();
		
		// Redirect Survey
		wps.redirectSurvey();
	};
	
	/**
	 *  Changes the action page of the survey optionally redirecting it to another page.
	 */
	wps.redirectSurvey = function() {
		var oldPostbackUrl = $('form#aspnetForm').get(0).action,
			currentSourceValue = GetUrlKeyValue('Source', true, oldPostbackUrl);
		$('input[id$=SaveItem]').each(function(index, element){
			$(element).removeAttr('onclick');
			$(element).on('click', function(event) {
				event.preventDefault();
				//event.stopPropogation();
				var elementName = $(this).attr('name'),
					newPostbackUrl = oldPostbackUrl.replace(currentSourceValue, OPTIONS.redirectPage);
				if (!PreSaveItem()) {
					return false;
				}
				WebForm_DoPostBackWithOptions(
					new WebForm_PostBackOptions(elementName, "", true, "", newPostbackUrl, false, true)
				);
			});
		});
        
		/* HAVEN'T TRIED THIS ONE YET
		$('input[type="button"]').each(function(i,e){
			if ('Finish' === $(e).val()) {
				$(e).attr('onclick', "javascript: {ddwrt:GenFireServerEvent('__commit;__redirect={" + OPTIONS.redirectPage + "}')}");
			}
		});
		*/
	};
	
	/**
	 *  PreSaveItem
	 *  
	 *  @deprecated
	 */
	wps.PreSaveItem = function () {
		console.log('PreSaveItem');
	};
	
	// Expose classes
	WPS = $.extend({}, WPS, {
		Survey: Survey,
		List: List,
		User: User,
		Web: Web,
		Script: Script,
		SPScript: SPScript,
		Modal: Modal,
		utils: utils
	});
	
	if (debug) {
		WPS = $.extend({}, WPS, {wps:wps});
	}
	
	// Use jQuery
	/*
	$(document).ready(function() {
		wps.init();
	});
	*/
	
	// GO TIME!
	_spBodyOnLoadFunctionNames.push('WPS.init');
})(jQuery, window, document, ClientSurvey);

Hi, how can I use this script ?