https://www.samplexpress.com/Scripts/Services/device.js

1(function () {
2  var previousDevice, _addClass, _doc_element, _find, _handleOrientation, _hasClass, _orientation_event, _removeClass, _supports_orientation, _user_agent;
3
4  previousDevice = window.device;
5
6  window.device = {};
7
8  _doc_element = window.document.documentElement;
9
10  _user_agent = window.navigator.userAgent.toLowerCase();
11
12  device.ios = function () {
13    return device.iphone() || device.ipod() || device.ipad();
14  };
15
16  device.iphone = function () {
17    return _find('iphone');
18  };
19
20  device.ipod = function () {
21    return _find('ipod');
22  };
23
24  device.ipad = function () {
25    return _find('ipad');
26  };
27
28  device.android = function () {
29    return _find('android');
30  };
31
32  device.androidPhone = function () {
33    return device.android() && _find('mobile');
34  };
35
36  device.androidTablet = function () {
37    return device.android() && !_find('mobile');
38  };
39
40  device.blackberry = function () {
41    return _find('blackberry') || _find('bb10') || _find('rim');
42  };
43
44  device.blackberryPhone = function () {
45    return device.blackberry() && !_find('tablet');
46  };
47
48  device.blackberryTablet = function () {
49    return device.blackberry() && _find('tablet');
50  };
51
52  device.windows = function () {
53    return _find('windows');
54  };
55
56  device.windowsPhone = function () {
57    return device.windows() && _find('phone');
58  };
59
60  device.windowsTablet = function () {
61    return device.windows() && _find('touch');
62  };
63
64  device.fxos = function () {
65    return (_find('(mobile;') || _find('(tablet;')) && _find('; rv:');
66  };
67
68  device.fxosPhone = function () {
69    return device.fxos() && _find('mobile');
70  };
71
72  device.fxosTablet = function () {
73    return device.fxos() && _find('tablet');
74  };
75
76  device.meego = function () {
77    return _find('meego');
78  };
79
80  device.mobile = function () {
81    return device.androidPhone() || device.iphone() || device.ipod() || device.windowsPhone() || device.blackberryPhone() || device.fxosPhone() || device.meego();
82  };
83
84  device.tablet = function () {
85    return device.ipad() || device.androidTablet() || device.blackberryTablet() || device.windowsTablet() || device.fxosTablet();
86  };
87
88  device.portrait = function () {
89    return Math.abs(window.orientation) !== 90;
90  };
91
92  device.landscape = function () {
93    return Math.abs(window.orientation) === 90;
94  };
95
96  device.noConflict = function () {
97    window.device = previousDevice;
98    return this;
99  };
100
101  _find = function (needle) {
102    return _user_agent.indexOf(needle) !== -1;
103  };
104
105  _hasClass = function (class_name) {
106    var regex;
107    regex = new RegExp(class_name, 'i');
108    return _doc_element.className.match(regex);
109  };
110
111  _addClass = function (class_name) {
112    if (!_hasClass(class_name)) {
113      return _doc_element.className += " " + class_name;
114    }
115  };
116
117  _removeClass = function (class_name) {
118    if (_hasClass(class_name)) {
119      return _doc_element.className = _doc_element.className.replace(class_name, "");
120    }
121  };
122
123  if (device.ios()) {
124    if (device.ipad()) {
125      _addClass("ios ipad tablet");
126    } else if (device.iphone()) {
127      _addClass("ios iphone mobile");
128    } else if (device.ipod()) {
129      _addClass("ios ipod mobile");
130    }
131  } else if (device.android()) {
132    if (device.androidTablet()) {
133      _addClass("android tablet");
134    } else {
135      _addClass("android mobile");
136    }
137  } else if (device.blackberry()) {
138    if (device.blackberryTablet()) {
139      _addClass("blackberry tablet");
140    } else {
141      _addClass("blackberry mobile");
142    }
143  } else if (device.windows()) {
144    if (device.windowsTablet()) {
145      _addClass("windows tablet");
146    } else if (device.windowsPhone()) {
147      _addClass("windows mobile");
148    } else {
149      _addClass("desktop");
150    }
151  } else if (device.fxos()) {
152    if (device.fxosTablet()) {
153      _addClass("fxos tablet");
154    } else {
155      _addClass("fxos mobile");
156    }
157  } else if (device.meego()) {
158    _addClass("meego mobile");
159  } else {
160    _addClass("desktop");
161  }
162
163  _handleOrientation = function () {
164    if (device.landscape()) {
165      _removeClass("portrait");
166      return _addClass("landscape");
167    } else {
168      _removeClass("landscape");
169      return _addClass("portrait");
170    }
171  };
172
173  _supports_orientation = "onorientationchange" in window;
174
175  _orientation_event = _supports_orientation ? "orientationchange" : "resize";
176
177  if (window.addEventListener) {
178    window.addEventListener(_orientation_event, _handleOrientation, false);
179  } else if (window.attachEvent) {
180    window.attachEvent(_orientation_event, _handleOrientation);
181  } else {
182    window[_orientation_event] = _handleOrientation;
183  }
184
185  _handleOrientation();
186
187}).call(this);