Source: Widgets/NavigationHelpButton/NavigationHelpButtonViewModel.js

  1. /*global define*/
  2. define([
  3.         '../../Core/defineProperties',
  4.         '../../ThirdParty/knockout',
  5.         '../createCommand'
  6.     ], function(
  7.         defineProperties,
  8.         knockout,
  9.         createCommand) {
  10.     'use strict';
  12.     /**
  13.      * The view model for {@link NavigationHelpButton}.
  14.      * @alias NavigationHelpButtonViewModel
  15.      * @constructor
  16.      */
  17.     function NavigationHelpButtonViewModel() {
  18.         /**
  19.          * Gets or sets whether the instructions are currently shown.  This property is observable.
  20.          * @type {Boolean}
  21.          * @default false
  22.         */
  23.         this.showInstructions = false;
  25.         var that = this;
  26.         this._command = createCommand(function() {
  27.             that.showInstructions = !that.showInstructions;
  28.         });
  29.         this._showClick = createCommand(function() {
  30.             that._touch = false;
  31.         });
  32.         this._showTouch = createCommand(function() {
  33.             that._touch = true;
  34.         });
  36.         this._touch = false;
  38.         /**
  39.          * Gets or sets the tooltip.  This property is observable.
  40.          *
  41.          * @type {String}
  42.          */
  43.         this.tooltip = 'Navigation Instructions';
  45.         knockout.track(this, ['tooltip', 'showInstructions', '_touch']);
  46.     }
  48.     defineProperties(NavigationHelpButtonViewModel.prototype, {
  49.         /**
  50.          * Gets the Command that is executed when the button is clicked.
  51.          * @memberof NavigationHelpButtonViewModel.prototype
  52.          *
  53.          * @type {Command}
  54.          */
  55.         command : {
  56.             get : function() {
  57.                 return this._command;
  58.             }
  59.         },
  61.         /**
  62.          * Gets the Command that is executed when the mouse instructions should be shown.
  63.          * @memberof NavigationHelpButtonViewModel.prototype
  64.          *
  65.          * @type {Command}
  66.          */
  67.         showClick : {
  68.             get : function() {
  69.                 return this._showClick;
  70.             }
  71.         },
  73.         /**
  74.          * Gets the Command that is executed when the touch instructions should be shown.
  75.          * @memberof NavigationHelpButtonViewModel.prototype
  76.          *
  77.          * @type {Command}
  78.          */
  79.         showTouch : {
  80.             get: function() {
  81.                 return this._showTouch;
  82.             }
  83.         }
  84.     });
  86.     return NavigationHelpButtonViewModel;
  87. });