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50 lines
1.6 KiB
TypeScript
50 lines
1.6 KiB
TypeScript
// This is copied from CM6, which does not expose it publicly.
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// https://github.com/codemirror/view/blob/e7918b607753588a0b2a596e952068fa008bf84c/src/browser.ts
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const nav: any =
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typeof navigator !== 'undefined'
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? navigator
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: { userAgent: '', vendor: '', platform: '' }
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const doc: any =
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typeof document !== 'undefined'
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? document
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: { documentElement: { style: {} } }
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const ieEdge = /Edge\/(\d+)/.exec(nav.userAgent)
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const ieUpTo10 = /MSIE \d/.test(nav.userAgent)
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const ie11Up = /Trident\/(?:[7-9]|\d{2,})\..*rv:(\d+)/.exec(nav.userAgent)
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const ie = !!(ieUpTo10 || ie11Up || ieEdge)
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const gecko = !ie && /gecko\/(\d+)/i.test(nav.userAgent)
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const chrome = !ie && /Chrome\/(\d+)/.exec(nav.userAgent)
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const webkit = 'webkitFontSmoothing' in doc.documentElement.style
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const safari = !ie && /Apple Computer/.test(nav.vendor)
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const ios =
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safari && (/Mobile\/\w+/.test(nav.userAgent) || nav.maxTouchPoints > 2)
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export default {
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mac: ios || /Mac/.test(nav.platform),
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windows: /Win/.test(nav.platform),
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linux: /Linux|X11/.test(nav.platform),
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ie,
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ie_version: ieUpTo10
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? doc.documentMode || 6
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: ie11Up
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? +ie11Up[1]
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: ieEdge
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? +ieEdge[1]
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: 0,
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gecko,
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gecko_version: gecko
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? +(/Firefox\/(\d+)/.exec(nav.userAgent) || [0, 0])[1]
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: 0,
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chrome: !!chrome,
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chrome_version: chrome ? +chrome[1] : 0,
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ios,
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android: /Android\b/.test(nav.userAgent),
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webkit,
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safari,
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webkit_version: webkit
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? +(/\bAppleWebKit\/(\d+)/.exec(navigator.userAgent) || [0, 0])[1]
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: 0,
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tabSize:
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doc.documentElement.style.tabSize != null ? 'tab-size' : '-moz-tab-size',
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}
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