| /** |
| * echarts设备环境识别 |
| * |
| * @desc echarts基于Canvas,纯Javascript图表库,提供直观,生动,可交互,可个性化定制的数据统计图表。 |
| * @author firede[firede@firede.us] |
| * @desc thanks zepto. |
| */ |
| var env = {}; |
| |
| if (typeof navigator === 'undefined') { |
| // In node |
| env = { |
| browser: {}, |
| os: {}, |
| node: true, |
| // Assume canvas is supported |
| canvasSupported: true, |
| svgSupported: true |
| }; |
| } else { |
| env = detect(navigator.userAgent); |
| } |
| |
| export default env; // Zepto.js |
| // (c) 2010-2013 Thomas Fuchs |
| // Zepto.js may be freely distributed under the MIT license. |
| |
| function detect(ua) { |
| var os = {}; |
| var browser = {}; // var webkit = ua.match(/Web[kK]it[\/]{0,1}([\d.]+)/); |
| // var android = ua.match(/(Android);?[\s\/]+([\d.]+)?/); |
| // var ipad = ua.match(/(iPad).*OS\s([\d_]+)/); |
| // var ipod = ua.match(/(iPod)(.*OS\s([\d_]+))?/); |
| // var iphone = !ipad && ua.match(/(iPhone\sOS)\s([\d_]+)/); |
| // var webos = ua.match(/(webOS|hpwOS)[\s\/]([\d.]+)/); |
| // var touchpad = webos && ua.match(/TouchPad/); |
| // var kindle = ua.match(/Kindle\/([\d.]+)/); |
| // var silk = ua.match(/Silk\/([\d._]+)/); |
| // var blackberry = ua.match(/(BlackBerry).*Version\/([\d.]+)/); |
| // var bb10 = ua.match(/(BB10).*Version\/([\d.]+)/); |
| // var rimtabletos = ua.match(/(RIM\sTablet\sOS)\s([\d.]+)/); |
| // var playbook = ua.match(/PlayBook/); |
| // var chrome = ua.match(/Chrome\/([\d.]+)/) || ua.match(/CriOS\/([\d.]+)/); |
| |
| var firefox = ua.match(/Firefox\/([\d.]+)/); // var safari = webkit && ua.match(/Mobile\//) && !chrome; |
| // var webview = ua.match(/(iPhone|iPod|iPad).*AppleWebKit(?!.*Safari)/) && !chrome; |
| |
| var ie = ua.match(/MSIE\s([\d.]+)/) // IE 11 Trident/7.0; rv:11.0 |
| || ua.match(/Trident\/.+?rv:(([\d.]+))/); |
| var edge = ua.match(/Edge\/([\d.]+)/); // IE 12 and 12+ |
| |
| var weChat = /micromessenger/i.test(ua); // Todo: clean this up with a better OS/browser seperation: |
| // - discern (more) between multiple browsers on android |
| // - decide if kindle fire in silk mode is android or not |
| // - Firefox on Android doesn't specify the Android version |
| // - possibly devide in os, device and browser hashes |
| // if (browser.webkit = !!webkit) browser.version = webkit[1]; |
| // if (android) os.android = true, os.version = android[2]; |
| // if (iphone && !ipod) os.ios = os.iphone = true, os.version = iphone[2].replace(/_/g, '.'); |
| // if (ipad) os.ios = os.ipad = true, os.version = ipad[2].replace(/_/g, '.'); |
| // if (ipod) os.ios = os.ipod = true, os.version = ipod[3] ? ipod[3].replace(/_/g, '.') : null; |
| // if (webos) os.webos = true, os.version = webos[2]; |
| // if (touchpad) os.touchpad = true; |
| // if (blackberry) os.blackberry = true, os.version = blackberry[2]; |
| // if (bb10) os.bb10 = true, os.version = bb10[2]; |
| // if (rimtabletos) os.rimtabletos = true, os.version = rimtabletos[2]; |
| // if (playbook) browser.playbook = true; |
| // if (kindle) os.kindle = true, os.version = kindle[1]; |
| // if (silk) browser.silk = true, browser.version = silk[1]; |
| // if (!silk && os.android && ua.match(/Kindle Fire/)) browser.silk = true; |
| // if (chrome) browser.chrome = true, browser.version = chrome[1]; |
| |
| if (firefox) { |
| browser.firefox = true; |
| browser.version = firefox[1]; |
| } // if (safari && (ua.match(/Safari/) || !!os.ios)) browser.safari = true; |
| // if (webview) browser.webview = true; |
| |
| |
| if (ie) { |
| browser.ie = true; |
| browser.version = ie[1]; |
| } |
| |
| if (edge) { |
| browser.edge = true; |
| browser.version = edge[1]; |
| } // It is difficult to detect WeChat in Win Phone precisely, because ua can |
| // not be set on win phone. So we do not consider Win Phone. |
| |
| |
| if (weChat) { |
| browser.weChat = true; |
| } // os.tablet = !!(ipad || playbook || (android && !ua.match(/Mobile/)) || |
| // (firefox && ua.match(/Tablet/)) || (ie && !ua.match(/Phone/) && ua.match(/Touch/))); |
| // os.phone = !!(!os.tablet && !os.ipod && (android || iphone || webos || |
| // (chrome && ua.match(/Android/)) || (chrome && ua.match(/CriOS\/([\d.]+)/)) || |
| // (firefox && ua.match(/Mobile/)) || (ie && ua.match(/Touch/)))); |
| |
| |
| return { |
| browser: browser, |
| os: os, |
| node: false, |
| // 原生canvas支持,改极端点了 |
| // canvasSupported : !(browser.ie && parseFloat(browser.version) < 9) |
| canvasSupported: !!document.createElement('canvas').getContext, |
| svgSupported: typeof SVGRect !== 'undefined', |
| // @see <http://stackoverflow.com/questions/4817029/whats-the-best-way-to-detect-a-touch-screen-device-using-javascript> |
| // works on most browsers |
| // IE10/11 does not support touch event, and MS Edge supports them but not by |
| // default, so we dont check navigator.maxTouchPoints for them here. |
| touchEventsSupported: 'ontouchstart' in window && !browser.ie && !browser.edge, |
| // <http://caniuse.com/#search=pointer%20event>. |
| pointerEventsSupported: 'onpointerdown' in window // Firefox supports pointer but not by default, only MS browsers are reliable on pointer |
| // events currently. So we dont use that on other browsers unless tested sufficiently. |
| // Although IE 10 supports pointer event, it use old style and is different from the |
| // standard. So we exclude that. (IE 10 is hardly used on touch device) |
| && (browser.edge || browser.ie && browser.version >= 11) |
| }; |
| } |