1 | var staticStrUndefined = require('./staticStrUndefined')
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2 | var staticDocument = require('./staticDocument')
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3 | var staticWindow = require('./staticWindow')
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4 |
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5 | var assign = require('./assign')
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6 | var arrayEach = require('./arrayEach')
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7 |
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8 |
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9 | function isBrowseStorage (storage) {
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10 | try {
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11 | var testKey = '__xe_t'
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12 | storage.setItem(testKey, 1)
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13 | storage.removeItem(testKey)
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14 | return true
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15 | } catch (e) {
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16 | return false
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17 | }
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18 | }
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19 |
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20 | function isBrowseType (type) {
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21 | return navigator.userAgent.indexOf(type) > -1
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22 | }
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23 |
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24 |
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25 |
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26 |
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27 |
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28 | function browse () {
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29 | var $body, isChrome, isEdge
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30 | var isMobile = false
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31 | var result = {
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32 | isNode: false,
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33 | isMobile: isMobile,
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34 | isPC: false,
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35 | isDoc: !!staticDocument
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36 | }
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37 | if (!staticWindow && typeof process !== staticStrUndefined) {
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38 | result.isNode = true
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39 | } else {
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40 | isEdge = isBrowseType('Edge')
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41 | isChrome = isBrowseType('Chrome')
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42 | isMobile = /(Android|webOS|iPhone|iPad|iPod|SymbianOS|BlackBerry|Windows Phone)/.test(navigator.userAgent)
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43 | if (result.isDoc) {
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44 | $body = staticDocument.body || staticDocument.documentElement
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45 | arrayEach(['webkit', 'khtml', 'moz', 'ms', 'o'], function (core) {
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46 | result['-' + core] = !!$body[core + 'MatchesSelector']
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47 | })
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48 | }
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49 | assign(result, {
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50 | edge: isEdge,
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51 | firefox: isBrowseType('Firefox'),
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52 | msie: !isEdge && result['-ms'],
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53 | safari: !isChrome && !isEdge && isBrowseType('Safari'),
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54 | isMobile: isMobile,
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55 | isPC: !isMobile,
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56 | isLocalStorage: isBrowseStorage(staticWindow.localStorage),
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57 | isSessionStorage: isBrowseStorage(staticWindow.sessionStorage)
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58 | })
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59 | }
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60 | return result
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61 | }
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62 |
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63 | module.exports = browse
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