mirror of
https://github.com/openstf/stf
synced 2025-10-05 10:39:25 +02:00
99 lines
2.7 KiB
JavaScript
99 lines
2.7 KiB
JavaScript
// NOTE: Most of the detection stuff is from Modernizr 3.0
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module.exports = function BrowserInfoServiceFactory() {
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var service = {}
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function createElement() {
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return document.createElement.apply(document, arguments)
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}
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function addTest(key, test) {
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service[key] = (typeof test == 'function') ? test() : test
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}
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addTest('touch', function () {
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return ('ontouchstart' in window) || window.DocumentTouch &&
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document instanceof window.DocumentTouch
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})
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addTest('retina', function () {
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var mediaQuery = '(-webkit-min-device-pixel-ratio: 1.5), ' +
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'(min--moz-device-pixel-ratio: 1.5), (-o-min-device-pixel-ratio: 3/2), ' +
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'(min-resolution: 1.5dppx)'
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if (window.devicePixelRatio > 1) {
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return true
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}
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return !!(window.matchMedia && window.matchMedia(mediaQuery).matches)
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})
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addTest('small', function () {
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var windowWidth = window.screen.width < window.outerWidth ?
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window.screen.width : window.outerWidth
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return windowWidth < 800
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// return !!(window.matchMedia &&
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// window.matchMedia('only screen and (max-width: 760px)').matches)
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})
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addTest('mobile', function () {
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return !!(service.small && service.touch)
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})
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addTest('os', function () {
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var ua = navigator.userAgent
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if (ua.match(/Android/i)) {
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return 'android'
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} else if (ua.match(/iPhone|iPad|iPod/i)) {
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return 'ios'
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} else {
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return 'pc'
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}
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})
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addTest('webgl', function () {
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var canvas = createElement('canvas')
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if ('supportsContext' in canvas) {
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return canvas.supportsContext('webgl') ||
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canvas.supportsContext('experimental-webgl')
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}
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return !!window.WebGLRenderingContext
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})
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addTest('ua', navigator.userAgent)
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//function hasEvent() {
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// return (function (undefined) {
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// function isEventSupportedInner(eventName, element) {
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// var isSupported
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// if (!eventName) {
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// return false
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// }
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// if (!element || typeof element === 'string') {
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// element = createElement(element || 'div')
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// }
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// eventName = 'on' + eventName
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// isSupported = eventName in element
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// return isSupported
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// }
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//
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// return isEventSupportedInner
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// })()
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//}
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// var domPrefixes = 'Webkit Moz O ms'.toLowerCase().split(' ')
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// addTest('pointerevents', function () {
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// var bool = false
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// var i = domPrefixes.length
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// bool = hasEvent('pointerdown')
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// while (i-- && !bool) {
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// if (hasEvent(domPrefixes[i] + 'pointerdown')) {
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// bool = true
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// }
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// }
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// return bool
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// })
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addTest('devicemotion', 'DeviceMotionEvent' in window)
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addTest('deviceorientation', 'DeviceOrientationEvent' in window)
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return service
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}
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