Completed
Push — master ( 911771...7a25dd )
by Jacob
01:28
created

tinymce/js/bowser.js   F

Complexity

Total Complexity 156
Complexity/F 12

Size

Lines of Code 574
Function Count 13

Duplication

Duplicated Lines 0
Ratio 0 %

Importance

Changes 2
Bugs 0 Features 1
Metric Value
cc 0
nc 0
dl 0
loc 574
rs 1.5789
c 2
b 0
f 1
wmc 156
mnd 34
bc 92
fnc 13
bpm 7.0769
cpm 12
noi 10

How to fix   Complexity   

Complexity

Complex classes like tinymce/js/bowser.js often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.

Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.

1
/*!
2
 * Bowser - a browser detector
3
 * https://github.com/ded/bowser
4
 * MIT License | (c) Dustin Diaz 2015
5
 */
6
7
!function (root, name, definition) {
8
  if (typeof module != 'undefined' && module.exports) module.exports = definition()
9
  else if (typeof define == 'function' && define.amd) define(name, definition)
10
  else root[name] = definition()
11
}(this, 'bowser', function () {
12
  /**
13
    * See useragents.js for examples of navigator.userAgent
14
    */
15
16
  var t = true;
17
18
  function detect(ua) {
19
20
    function getFirstMatch(regex) {
21
      var match = ua.match(regex);
22
      return (match && match.length > 1 && match[1]) || '';
23
    }
24
25
    function getSecondMatch(regex) {
26
      var match = ua.match(regex);
27
      return (match && match.length > 1 && match[2]) || '';
28
    }
29
30
    var iosdevice = getFirstMatch(/(ipod|iphone|ipad)/i).toLowerCase()
31
      , likeAndroid = /like android/i.test(ua)
32
      , android = !likeAndroid && /android/i.test(ua)
33
      , nexusMobile = /nexus\s*[0-6]\s*/i.test(ua)
34
      , nexusTablet = !nexusMobile && /nexus\s*[0-9]+/i.test(ua)
35
      , chromeos = /CrOS/.test(ua)
36
      , silk = /silk/i.test(ua)
37
      , sailfish = /sailfish/i.test(ua)
38
      , tizen = /tizen/i.test(ua)
39
      , webos = /(web|hpw)os/i.test(ua)
40
      , windowsphone = /windows phone/i.test(ua)
41
      , samsungBrowser = /SamsungBrowser/i.test(ua)
42
      , windows = !windowsphone && /windows/i.test(ua)
43
      , mac = !iosdevice && !silk && /macintosh/i.test(ua)
44
      , linux = !android && !sailfish && !tizen && !webos && /linux/i.test(ua)
45
      , edgeVersion = getFirstMatch(/edge\/(\d+(\.\d+)?)/i)
46
      , versionIdentifier = getFirstMatch(/version\/(\d+(\.\d+)?)/i)
47
      , tablet = /tablet/i.test(ua)
48
      , mobile = !tablet && /[^-]mobi/i.test(ua)
49
      , xbox = /xbox/i.test(ua)
50
      , result
51
52
    if (/opera/i.test(ua)) {
53
      //  an old Opera
54
      result = {
55
        name: 'Opera'
56
      , opera: t
57
      , version: versionIdentifier || getFirstMatch(/(?:opera|opr|opios)[\s\/](\d+(\.\d+)?)/i)
58
      }
59
    } else if (/opr|opios/i.test(ua)) {
60
      // a new Opera
61
      result = {
62
        name: 'Opera'
63
        , opera: t
64
        , version: getFirstMatch(/(?:opr|opios)[\s\/](\d+(\.\d+)?)/i) || versionIdentifier
65
      }
66
    }
67
    else if (/SamsungBrowser/i.test(ua)) {
68
      result = {
69
        name: 'Samsung Internet for Android'
70
        , samsungBrowser: t
71
        , version: versionIdentifier || getFirstMatch(/(?:SamsungBrowser)[\s\/](\d+(\.\d+)?)/i)
72
      }
73
    }
74
    else if (/coast/i.test(ua)) {
75
      result = {
76
        name: 'Opera Coast'
77
        , coast: t
78
        , version: versionIdentifier || getFirstMatch(/(?:coast)[\s\/](\d+(\.\d+)?)/i)
79
      }
80
    }
81
    else if (/yabrowser/i.test(ua)) {
82
      result = {
83
        name: 'Yandex Browser'
84
      , yandexbrowser: t
85
      , version: versionIdentifier || getFirstMatch(/(?:yabrowser)[\s\/](\d+(\.\d+)?)/i)
86
      }
87
    }
88
    else if (/ucbrowser/i.test(ua)) {
89
      result = {
90
          name: 'UC Browser'
91
        , ucbrowser: t
92
        , version: getFirstMatch(/(?:ucbrowser)[\s\/](\d+(?:\.\d+)+)/i)
93
      }
94
    }
95
    else if (/mxios/i.test(ua)) {
96
      result = {
97
        name: 'Maxthon'
98
        , maxthon: t
99
        , version: getFirstMatch(/(?:mxios)[\s\/](\d+(?:\.\d+)+)/i)
100
      }
101
    }
102
    else if (/epiphany/i.test(ua)) {
103
      result = {
104
        name: 'Epiphany'
105
        , epiphany: t
106
        , version: getFirstMatch(/(?:epiphany)[\s\/](\d+(?:\.\d+)+)/i)
107
      }
108
    }
109
    else if (/puffin/i.test(ua)) {
110
      result = {
111
        name: 'Puffin'
112
        , puffin: t
113
        , version: getFirstMatch(/(?:puffin)[\s\/](\d+(?:\.\d+)?)/i)
114
      }
115
    }
116
    else if (/sleipnir/i.test(ua)) {
117
      result = {
118
        name: 'Sleipnir'
119
        , sleipnir: t
120
        , version: getFirstMatch(/(?:sleipnir)[\s\/](\d+(?:\.\d+)+)/i)
121
      }
122
    }
123
    else if (/k-meleon/i.test(ua)) {
124
      result = {
125
        name: 'K-Meleon'
126
        , kMeleon: t
127
        , version: getFirstMatch(/(?:k-meleon)[\s\/](\d+(?:\.\d+)+)/i)
128
      }
129
    }
130
    else if (windowsphone) {
131
      result = {
132
        name: 'Windows Phone'
133
      , windowsphone: t
134
      }
135
      if (edgeVersion) {
136
        result.msedge = t
137
        result.version = edgeVersion
138
      }
139
      else {
140
        result.msie = t
141
        result.version = getFirstMatch(/iemobile\/(\d+(\.\d+)?)/i)
142
      }
143
    }
144
    else if (/msie|trident/i.test(ua)) {
145
      result = {
146
        name: 'Internet Explorer'
147
      , msie: t
148
      , version: getFirstMatch(/(?:msie |rv:)(\d+(\.\d+)?)/i)
149
      }
150
    } else if (chromeos) {
151
      result = {
152
        name: 'Chrome'
153
      , chromeos: t
154
      , chromeBook: t
155
      , chrome: t
156
      , version: getFirstMatch(/(?:chrome|crios|crmo)\/(\d+(\.\d+)?)/i)
157
      }
158
    } else if (/chrome.+? edge/i.test(ua)) {
159
      result = {
160
        name: 'Microsoft Edge'
161
      , msedge: t
162
      , version: edgeVersion
163
      }
164
    }
165
    else if (/vivaldi/i.test(ua)) {
166
      result = {
167
        name: 'Vivaldi'
168
        , vivaldi: t
169
        , version: getFirstMatch(/vivaldi\/(\d+(\.\d+)?)/i) || versionIdentifier
170
      }
171
    }
172
    else if (sailfish) {
173
      result = {
174
        name: 'Sailfish'
175
      , sailfish: t
176
      , version: getFirstMatch(/sailfish\s?browser\/(\d+(\.\d+)?)/i)
177
      }
178
    }
179
    else if (/seamonkey\//i.test(ua)) {
180
      result = {
181
        name: 'SeaMonkey'
182
      , seamonkey: t
183
      , version: getFirstMatch(/seamonkey\/(\d+(\.\d+)?)/i)
184
      }
185
    }
186
    else if (/firefox|iceweasel|fxios/i.test(ua)) {
187
      result = {
188
        name: 'Firefox'
189
      , firefox: t
190
      , version: getFirstMatch(/(?:firefox|iceweasel|fxios)[ \/](\d+(\.\d+)?)/i)
191
      }
192
      if (/\((mobile|tablet);[^\)]*rv:[\d\.]+\)/i.test(ua)) {
193
        result.firefoxos = t
194
      }
195
    }
196
    else if (silk) {
197
      result =  {
198
        name: 'Amazon Silk'
199
      , silk: t
200
      , version : getFirstMatch(/silk\/(\d+(\.\d+)?)/i)
201
      }
202
    }
203
    else if (/phantom/i.test(ua)) {
204
      result = {
205
        name: 'PhantomJS'
206
      , phantom: t
207
      , version: getFirstMatch(/phantomjs\/(\d+(\.\d+)?)/i)
208
      }
209
    }
210
    else if (/slimerjs/i.test(ua)) {
211
      result = {
212
        name: 'SlimerJS'
213
        , slimer: t
214
        , version: getFirstMatch(/slimerjs\/(\d+(\.\d+)?)/i)
215
      }
216
    }
217
    else if (/blackberry|\bbb\d+/i.test(ua) || /rim\stablet/i.test(ua)) {
218
      result = {
219
        name: 'BlackBerry'
220
      , blackberry: t
221
      , version: versionIdentifier || getFirstMatch(/blackberry[\d]+\/(\d+(\.\d+)?)/i)
222
      }
223
    }
224
    else if (webos) {
225
      result = {
226
        name: 'WebOS'
227
      , webos: t
228
      , version: versionIdentifier || getFirstMatch(/w(?:eb)?osbrowser\/(\d+(\.\d+)?)/i)
229
      };
230
      /touchpad\//i.test(ua) && (result.touchpad = t)
231
    }
232
    else if (/bada/i.test(ua)) {
233
      result = {
234
        name: 'Bada'
235
      , bada: t
236
      , version: getFirstMatch(/dolfin\/(\d+(\.\d+)?)/i)
237
      };
238
    }
239
    else if (tizen) {
240
      result = {
241
        name: 'Tizen'
242
      , tizen: t
243
      , version: getFirstMatch(/(?:tizen\s?)?browser\/(\d+(\.\d+)?)/i) || versionIdentifier
244
      };
245
    }
246
    else if (/qupzilla/i.test(ua)) {
247
      result = {
248
        name: 'QupZilla'
249
        , qupzilla: t
250
        , version: getFirstMatch(/(?:qupzilla)[\s\/](\d+(?:\.\d+)+)/i) || versionIdentifier
251
      }
252
    }
253
    else if (/chromium/i.test(ua)) {
254
      result = {
255
        name: 'Chromium'
256
        , chromium: t
257
        , version: getFirstMatch(/(?:chromium)[\s\/](\d+(?:\.\d+)?)/i) || versionIdentifier
258
      }
259
    }
260
    else if (/chrome|crios|crmo/i.test(ua)) {
261
      result = {
262
        name: 'Chrome'
263
        , chrome: t
264
        , version: getFirstMatch(/(?:chrome|crios|crmo)\/(\d+(\.\d+)?)/i)
265
      }
266
    }
267
    else if (android) {
268
      result = {
269
        name: 'Android'
270
        , version: versionIdentifier
271
      }
272
    }
273
    else if (/safari|applewebkit/i.test(ua)) {
274
      result = {
275
        name: 'Safari'
276
      , safari: t
277
      }
278
      if (versionIdentifier) {
279
        result.version = versionIdentifier
280
      }
281
    }
282
    else if (iosdevice) {
283
      result = {
284
        name : iosdevice == 'iphone' ? 'iPhone' : iosdevice == 'ipad' ? 'iPad' : 'iPod'
285
      }
286
      // WTF: version is not part of user agent in web apps
287
      if (versionIdentifier) {
288
        result.version = versionIdentifier
289
      }
290
    }
291
    else if(/googlebot/i.test(ua)) {
292
      result = {
293
        name: 'Googlebot'
294
      , googlebot: t
295
      , version: getFirstMatch(/googlebot\/(\d+(\.\d+))/i) || versionIdentifier
296
      }
297
    }
298
    else {
299
      result = {
300
        name: getFirstMatch(/^(.*)\/(.*) /),
301
        version: getSecondMatch(/^(.*)\/(.*) /)
302
     };
303
   }
304
305
    // set webkit or gecko flag for browsers based on these engines
306
    if (!result.msedge && /(apple)?webkit/i.test(ua)) {
307
      if (/(apple)?webkit\/537\.36/i.test(ua)) {
308
        result.name = result.name || "Blink"
309
        result.blink = t
310
      } else {
311
        result.name = result.name || "Webkit"
312
        result.webkit = t
313
      }
314
      if (!result.version && versionIdentifier) {
315
        result.version = versionIdentifier
316
      }
317
    } else if (!result.opera && /gecko\//i.test(ua)) {
318
      result.name = result.name || "Gecko"
319
      result.gecko = t
320
      result.version = result.version || getFirstMatch(/gecko\/(\d+(\.\d+)?)/i)
321
    }
322
323
    // set OS flags for platforms that have multiple browsers
324
    if (!result.windowsphone && !result.msedge && (android || result.silk)) {
325
      result.android = t
326
    } else if (!result.windowsphone && !result.msedge && iosdevice) {
327
      result[iosdevice] = t
328
      result.ios = t
329
    } else if (mac) {
330
      result.mac = t
331
    } else if (xbox) {
332
      result.xbox = t
333
    } else if (windows) {
334
      result.windows = t
335
    } else if (linux) {
336
      result.linux = t
337
    }
338
339
    // OS version extraction
340
    var osVersion = '';
341
    if (result.windowsphone) {
342
      osVersion = getFirstMatch(/windows phone (?:os)?\s?(\d+(\.\d+)*)/i);
343
    } else if (iosdevice) {
344
      osVersion = getFirstMatch(/os (\d+([_\s]\d+)*) like mac os x/i);
345
      osVersion = osVersion.replace(/[_\s]/g, '.');
346
    } else if (android) {
347
      osVersion = getFirstMatch(/android[ \/-](\d+(\.\d+)*)/i);
348
    } else if (result.webos) {
349
      osVersion = getFirstMatch(/(?:web|hpw)os\/(\d+(\.\d+)*)/i);
350
    } else if (result.blackberry) {
351
      osVersion = getFirstMatch(/rim\stablet\sos\s(\d+(\.\d+)*)/i);
352
    } else if (result.bada) {
353
      osVersion = getFirstMatch(/bada\/(\d+(\.\d+)*)/i);
354
    } else if (result.tizen) {
355
      osVersion = getFirstMatch(/tizen[\/\s](\d+(\.\d+)*)/i);
356
    }
357
    if (osVersion) {
358
      result.osversion = osVersion;
359
    }
360
361
    // device type extraction
362
    var osMajorVersion = osVersion.split('.')[0];
363
    if (
364
         tablet
365
      || nexusTablet
366
      || iosdevice == 'ipad'
367
      || (android && (osMajorVersion == 3 || (osMajorVersion >= 4 && !mobile)))
368
      || result.silk
369
    ) {
370
      result.tablet = t
371
    } else if (
372
         mobile
373
      || iosdevice == 'iphone'
374
      || iosdevice == 'ipod'
375
      || android
376
      || nexusMobile
377
      || result.blackberry
378
      || result.webos
379
      || result.bada
380
    ) {
381
      result.mobile = t
382
    }
383
384
    // Graded Browser Support
385
    // http://developer.yahoo.com/yui/articles/gbs
386
    if (result.msedge ||
387
        (result.msie && result.version >= 10) ||
388
        (result.yandexbrowser && result.version >= 15) ||
389
		    (result.vivaldi && result.version >= 1.0) ||
390
        (result.chrome && result.version >= 20) ||
391
        (result.samsungBrowser && result.version >= 4) ||
392
        (result.firefox && result.version >= 20.0) ||
393
        (result.safari && result.version >= 6) ||
394
        (result.opera && result.version >= 10.0) ||
395
        (result.ios && result.osversion && result.osversion.split(".")[0] >= 6) ||
396
        (result.blackberry && result.version >= 10.1)
397
        || (result.chromium && result.version >= 20)
398
        ) {
399
      result.a = t;
400
    }
401
    else if ((result.msie && result.version < 10) ||
402
        (result.chrome && result.version < 20) ||
403
        (result.firefox && result.version < 20.0) ||
404
        (result.safari && result.version < 6) ||
405
        (result.opera && result.version < 10.0) ||
406
        (result.ios && result.osversion && result.osversion.split(".")[0] < 6)
407
        || (result.chromium && result.version < 20)
408
        ) {
409
      result.c = t
410
    } else result.x = t
411
412
    return result
413
  }
414
415
  var bowser = detect(typeof navigator !== 'undefined' ? navigator.userAgent || '' : '')
416
417
  bowser.test = function (browserList) {
418
    for (var i = 0; i < browserList.length; ++i) {
419
      var browserItem = browserList[i];
420
      if (typeof browserItem=== 'string') {
421
        if (browserItem in bowser) {
422
          return true;
423
        }
424
      }
425
    }
426
    return false;
427
  }
428
429
  /**
430
   * Get version precisions count
431
   *
432
   * @example
433
   *   getVersionPrecision("1.10.3") // 3
434
   *
435
   * @param  {string} version
436
   * @return {number}
437
   */
438
  function getVersionPrecision(version) {
439
    return version.split(".").length;
440
  }
441
442
  /**
443
   * Array::map polyfill
444
   *
445
   * @param  {Array} arr
446
   * @param  {Function} iterator
447
   * @return {Array}
448
   */
449
  function map(arr, iterator) {
450
    var result = [], i;
451
    if (Array.prototype.map) {
452
      return Array.prototype.map.call(arr, iterator);
453
    }
454
    for (i = 0; i < arr.length; i++) {
455
      result.push(iterator(arr[i]));
456
    }
457
    return result;
458
  }
459
460
  /**
461
   * Calculate browser version weight
462
   *
463
   * @example
464
   *   compareVersions(['1.10.2.1',  '1.8.2.1.90'])    // 1
465
   *   compareVersions(['1.010.2.1', '1.09.2.1.90']);  // 1
466
   *   compareVersions(['1.10.2.1',  '1.10.2.1']);     // 0
467
   *   compareVersions(['1.10.2.1',  '1.0800.2']);     // -1
468
   *
469
   * @param  {Array<String>} versions versions to compare
470
   * @return {Number} comparison result
471
   */
472
  function compareVersions(versions) {
473
    // 1) get common precision for both versions, for example for "10.0" and "9" it should be 2
474
    var precision = Math.max(getVersionPrecision(versions[0]), getVersionPrecision(versions[1]));
475
    var chunks = map(versions, function (version) {
476
      var delta = precision - getVersionPrecision(version);
477
478
      // 2) "9" -> "9.0" (for precision = 2)
479
      version = version + new Array(delta + 1).join(".0");
480
481
      // 3) "9.0" -> ["000000000"", "000000009"]
482
      return map(version.split("."), function (chunk) {
483
        return new Array(20 - chunk.length).join("0") + chunk;
484
      }).reverse();
485
    });
486
487
    // iterate in reverse order by reversed chunks array
488
    while (--precision >= 0) {
489
      // 4) compare: "000000009" > "000000010" = false (but "9" > "10" = true)
490
      if (chunks[0][precision] > chunks[1][precision]) {
491
        return 1;
492
      }
493
      else if (chunks[0][precision] === chunks[1][precision]) {
494
        if (precision === 0) {
495
          // all version chunks are same
496
          return 0;
497
        }
498
      }
499
      else {
500
        return -1;
501
      }
502
    }
503
  }
504
505
  /**
506
   * Check if browser is unsupported
507
   *
508
   * @example
509
   *   bowser.isUnsupportedBrowser({
510
   *     msie: "10",
511
   *     firefox: "23",
512
   *     chrome: "29",
513
   *     safari: "5.1",
514
   *     opera: "16",
515
   *     phantom: "534"
516
   *   });
517
   *
518
   * @param  {Object}  minVersions map of minimal version to browser
519
   * @param  {Boolean} [strictMode = false] flag to return false if browser wasn't found in map
520
   * @param  {String}  [ua] user agent string
521
   * @return {Boolean}
522
   */
523
  function isUnsupportedBrowser(minVersions, strictMode, ua) {
524
    var _bowser = bowser;
525
526
    // make strictMode param optional with ua param usage
527
    if (typeof strictMode === 'string') {
528
      ua = strictMode;
529
      strictMode = void(0);
530
    }
531
532
    if (strictMode === void(0)) {
533
      strictMode = false;
534
    }
535
    if (ua) {
536
      _bowser = detect(ua);
537
    }
538
539
    var version = "" + _bowser.version;
540
    for (var browser in minVersions) {
541
      if (minVersions.hasOwnProperty(browser)) {
542
        if (_bowser[browser]) {
543
          if (typeof minVersions[browser] !== 'string') {
544
            throw new Error('Browser version in the minVersion map should be a string: ' + browser + ': ' + String(minVersions));
545
          }
546
547
          // browser version and min supported version.
548
          return compareVersions([version, minVersions[browser]]) < 0;
549
        }
550
      }
551
    }
552
553
    return strictMode; // not found
554
  }
555
556
  /**
557
   * Check if browser is supported
558
   *
559
   * @param  {Object} minVersions map of minimal version to browser
560
   * @param  {Boolean} [strictMode = false] flag to return false if browser wasn't found in map
561
   * @param  {String}  [ua] user agent string
562
   * @return {Boolean}
563
   */
564
  function check(minVersions, strictMode, ua) {
565
    return !isUnsupportedBrowser(minVersions, strictMode, ua);
566
  }
567
568
  bowser.isUnsupportedBrowser = isUnsupportedBrowser;
569
  bowser.compareVersions = compareVersions;
570
  bowser.check = check;
571
572
  /*
573
   * Set our detect method to the main bowser object so we can
574
   * reuse it to test other user agents.
575
   * This is needed to implement future tests.
576
   */
577
  bowser._detect = detect;
578
579
  return bowser;
580
});
581