https://lecendrillonrestaurant.com/wp-content/themes/lecendrillon/bower_components/what-input/what-input.js

1;(function(root, factory) {
2  if (typeof define === 'function' && define.amd) {
3    define([], function() {
4      return (factory());
5    });
6  } else if (typeof exports === 'object') {
7    module.exports = factory();
8  } else {
9    root.whatInput = factory();
10  }
11} (this, function() {
12  'use strict';
13
14
15  /*
16    ---------------
17    variables
18    ---------------
19  */
20
21  // array of actively pressed keys
22  var activeKeys = [];
23
24  // cache document.body
25  var body = document.body;
26
27  // boolean: true if touch buffer timer is running
28  var buffer = false;
29
30  // the last used input type
31  var currentInput = null;
32
33  // array of form elements that take keyboard input
34  var formInputs = [
35    'input',
36    'select',
37    'textarea'
38  ];
39
40  // user-set flag to allow typing in form fields to be recorded
41  var formTyping = body.hasAttribute('data-whatinput-formtyping');
42
43  // mapping of events to input types
44  var inputMap = {
45    'keydown': 'keyboard',
46    'mousedown': 'mouse',
47    'mouseenter': 'mouse',
48    'touchstart': 'touch',
49    'pointerdown': 'pointer',
50    'MSPointerDown': 'pointer'
51  };
52
53  // array of all used input types
54  var inputTypes = [];
55
56  // mapping of key codes to common name
57  var keyMap = {
58    9: 'tab',
59    13: 'enter',
60    16: 'shift',
61    27: 'esc',
62    32: 'space',
63    37: 'left',
64    38: 'up',
65    39: 'right',
66    40: 'down'
67  };
68
69  // map of IE 10 pointer events
70  var pointerMap = {
71    2: 'touch',
72    3: 'touch', // treat pen like touch
73    4: 'mouse'
74  };
75
76  // touch buffer timer
77  var timer;
78
79
80  /*
81    ---------------
82    functions
83    ---------------
84  */
85
86  function bufferInput(event) {
87    clearTimeout(timer);
88
89    setInput(event);
90
91    buffer = true;
92    timer = setTimeout(function() {
93      buffer = false;
94    }, 1000);
95  }
96
97  function immediateInput(event) {
98    if (!buffer) setInput(event);
99  }
100
101  function setInput(event) {
102    var eventKey = key(event);
103    var eventTarget = target(event);
104    var value = inputMap[event.type];
105    if (value === 'pointer') value = pointerType(event);
106
107    if (currentInput !== value) {
108      if (
109        // only if the user flag isn't set
110        !formTyping &&
111
112        // only if currentInput has a value
113        currentInput &&
114
115        // only if the input is `keyboard`
116        value === 'keyboard' &&
117
118        // not if the key is `TAB`
119        keyMap[eventKey] !== 'tab' &&
120
121        // only if the target is one of the elements in `formInputs`
122        formInputs.indexOf(eventTarget.nodeName.toLowerCase()) >= 0
123      ) {
124        // ignore keyboard typing on form elements
125      } else {
126        currentInput = value;
127        body.setAttribute('data-whatinput', currentInput);
128
129        if (inputTypes.indexOf(currentInput) === -1) inputTypes.push(currentInput);
130      }
131    }
132
133    if (value === 'keyboard') logKeys(eventKey);
134  }
135
136  function key(event) {
137    return (event.keyCode) ? event.keyCode : event.which;
138  }
139
140  function target(event) {
141    return event.target || event.srcElement;
142  }
143
144  function pointerType(event) {
145    return (typeof event.pointerType === 'number') ? pointerMap[event.pointerType] : event.pointerType;
146  }
147
148  // keyboard logging
149  function logKeys(eventKey) {
150    if (activeKeys.indexOf(keyMap[eventKey]) === -1 && keyMap[eventKey]) activeKeys.push(keyMap[eventKey]);
151  }
152
153  function unLogKeys(event) {
154    var eventKey = key(event);
155    var arrayPos = activeKeys.indexOf(keyMap[eventKey]);
156
157    if (arrayPos !== -1) activeKeys.splice(arrayPos, 1);
158  }
159
160  function bindEvents() {
161
162    // pointer/mouse
163    var mouseEvent = 'mousedown';
164
165    if (window.PointerEvent) {
166      mouseEvent = 'pointerdown';
167    } else if (window.MSPointerEvent) {
168      mouseEvent = 'MSPointerDown';
169    }
170
171    body.addEventListener(mouseEvent, immediateInput);
172    body.addEventListener('mouseenter', immediateInput);
173
174    // touch
175    if ('ontouchstart' in document.documentElement) {
176      body.addEventListener('touchstart', bufferInput);
177    }
178
179    // keyboard
180    body.addEventListener('keydown', immediateInput);
181    document.addEventListener('keyup', unLogKeys);
182  }
183
184
185  /*
186    ---------------
187    init
188
189    don't start script unless browser cuts the mustard,
190    also passes if polyfills are used
191    ---------------
192  */
193
194  if ('addEventListener' in window && Array.prototype.indexOf) {
195    bindEvents();
196  }
197
198
199  /*
200    ---------------
201    api
202    ---------------
203  */
204
205  return {
206
207    // returns string: the current input type
208    ask: function() { return currentInput; },
209
210    // returns array: currently pressed keys
211    keys: function() { return activeKeys; },
212
213    // returns array: all the detected input types
214    types: function() { return inputTypes; },
215
216    // accepts string: manually set the input type
217    set: setInput
218  };
219
220}));