170 lines
6.7 KiB
JavaScript
170 lines
6.7 KiB
JavaScript
/**
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* echarts设备环境识别
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*
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* @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。
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* @author firede[firede@firede.us]
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* @desc thanks zepto.
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*/
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/* global wx */
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var env = {};
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if (typeof wx === 'object' && typeof wx.getSystemInfoSync === 'function') {
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// In Weixin Application
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env = {
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browser: {},
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os: {},
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node: false,
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wxa: true,
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// Weixin Application
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canvasSupported: true,
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svgSupported: false,
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touchEventsSupported: true,
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domSupported: false
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};
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} else if (typeof document === 'undefined' && typeof self !== 'undefined') {
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// In worker
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env = {
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browser: {},
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os: {},
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node: false,
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worker: true,
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canvasSupported: true,
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domSupported: false
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};
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} else if (typeof navigator === 'undefined') {
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// In node
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env = {
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browser: {},
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os: {},
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node: true,
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worker: false,
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// Assume canvas is supported
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canvasSupported: true,
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svgSupported: true,
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domSupported: false
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};
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} else {
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env = detect(navigator.userAgent);
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}
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var _default = env; // Zepto.js
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// (c) 2010-2013 Thomas Fuchs
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// Zepto.js may be freely distributed under the MIT license.
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function detect(ua) {
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var os = {};
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var browser = {}; // var webkit = ua.match(/Web[kK]it[\/]{0,1}([\d.]+)/);
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// var android = ua.match(/(Android);?[\s\/]+([\d.]+)?/);
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// var ipad = ua.match(/(iPad).*OS\s([\d_]+)/);
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// var ipod = ua.match(/(iPod)(.*OS\s([\d_]+))?/);
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// var iphone = !ipad && ua.match(/(iPhone\sOS)\s([\d_]+)/);
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// var webos = ua.match(/(webOS|hpwOS)[\s\/]([\d.]+)/);
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// var touchpad = webos && ua.match(/TouchPad/);
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// var kindle = ua.match(/Kindle\/([\d.]+)/);
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// var silk = ua.match(/Silk\/([\d._]+)/);
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// var blackberry = ua.match(/(BlackBerry).*Version\/([\d.]+)/);
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// var bb10 = ua.match(/(BB10).*Version\/([\d.]+)/);
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// var rimtabletos = ua.match(/(RIM\sTablet\sOS)\s([\d.]+)/);
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// var playbook = ua.match(/PlayBook/);
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// var chrome = ua.match(/Chrome\/([\d.]+)/) || ua.match(/CriOS\/([\d.]+)/);
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var firefox = ua.match(/Firefox\/([\d.]+)/); // var safari = webkit && ua.match(/Mobile\//) && !chrome;
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// var webview = ua.match(/(iPhone|iPod|iPad).*AppleWebKit(?!.*Safari)/) && !chrome;
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var ie = ua.match(/MSIE\s([\d.]+)/) // IE 11 Trident/7.0; rv:11.0
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|| ua.match(/Trident\/.+?rv:(([\d.]+))/);
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var edge = ua.match(/Edge\/([\d.]+)/); // IE 12 and 12+
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var weChat = /micromessenger/i.test(ua); // Todo: clean this up with a better OS/browser seperation:
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// - discern (more) between multiple browsers on android
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// - decide if kindle fire in silk mode is android or not
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// - Firefox on Android doesn't specify the Android version
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// - possibly devide in os, device and browser hashes
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// if (browser.webkit = !!webkit) browser.version = webkit[1];
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// if (android) os.android = true, os.version = android[2];
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// if (iphone && !ipod) os.ios = os.iphone = true, os.version = iphone[2].replace(/_/g, '.');
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// if (ipad) os.ios = os.ipad = true, os.version = ipad[2].replace(/_/g, '.');
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// if (ipod) os.ios = os.ipod = true, os.version = ipod[3] ? ipod[3].replace(/_/g, '.') : null;
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// if (webos) os.webos = true, os.version = webos[2];
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// if (touchpad) os.touchpad = true;
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// if (blackberry) os.blackberry = true, os.version = blackberry[2];
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// if (bb10) os.bb10 = true, os.version = bb10[2];
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// if (rimtabletos) os.rimtabletos = true, os.version = rimtabletos[2];
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// if (playbook) browser.playbook = true;
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// if (kindle) os.kindle = true, os.version = kindle[1];
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// if (silk) browser.silk = true, browser.version = silk[1];
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// if (!silk && os.android && ua.match(/Kindle Fire/)) browser.silk = true;
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// if (chrome) browser.chrome = true, browser.version = chrome[1];
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if (firefox) {
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browser.firefox = true;
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browser.version = firefox[1];
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} // if (safari && (ua.match(/Safari/) || !!os.ios)) browser.safari = true;
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// if (webview) browser.webview = true;
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if (ie) {
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browser.ie = true;
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browser.version = ie[1];
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}
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if (edge) {
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browser.edge = true;
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browser.version = edge[1];
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} // It is difficult to detect WeChat in Win Phone precisely, because ua can
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// not be set on win phone. So we do not consider Win Phone.
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if (weChat) {
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browser.weChat = true;
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} // os.tablet = !!(ipad || playbook || (android && !ua.match(/Mobile/)) ||
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// (firefox && ua.match(/Tablet/)) || (ie && !ua.match(/Phone/) && ua.match(/Touch/)));
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// os.phone = !!(!os.tablet && !os.ipod && (android || iphone || webos ||
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// (chrome && ua.match(/Android/)) || (chrome && ua.match(/CriOS\/([\d.]+)/)) ||
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// (firefox && ua.match(/Mobile/)) || (ie && ua.match(/Touch/))));
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return {
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browser: browser,
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os: os,
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node: false,
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// 原生canvas支持，改极端点了
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// canvasSupported : !(browser.ie && parseFloat(browser.version) < 9)
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canvasSupported: !!document.createElement('canvas').getContext,
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svgSupported: typeof SVGRect !== 'undefined',
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// works on most browsers
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// IE10/11 does not support touch event, and MS Edge supports them but not by
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// default, so we dont check navigator.maxTouchPoints for them here.
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touchEventsSupported: 'ontouchstart' in window && !browser.ie && !browser.edge,
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// <http://caniuse.com/#search=pointer%20event>.
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pointerEventsSupported: // (1) Firefox supports pointer but not by default, only MS browsers are reliable on pointer
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// events currently. So we dont use that on other browsers unless tested sufficiently.
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// For example, in iOS 13 Mobile Chromium 78, if the touching behavior starts page
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// scroll, the `pointermove` event can not be fired any more. That will break some
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// features like "pan horizontally to move something and pan vertically to page scroll".
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// The horizontal pan probably be interrupted by the casually triggered page scroll.
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// (2) Although IE 10 supports pointer event, it use old style and is different from the
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// standard. So we exclude that. (IE 10 is hardly used on touch device)
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'onpointerdown' in window && (browser.edge || browser.ie && browser.version >= 11),
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// passiveSupported: detectPassiveSupport()
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domSupported: typeof document !== 'undefined'
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};
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} // See https://github.com/WICG/EventListenerOptions/blob/gh-pages/explainer.md#feature-detection
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// function detectPassiveSupport() {
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// // Test via a getter in the options object to see if the passive property is accessed
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// var supportsPassive = false;
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// try {
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// var opts = Object.defineProperty({}, 'passive', {
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// get: function() {
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// supportsPassive = true;
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// }
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// });
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// window.addEventListener('testPassive', function() {}, opts);
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// } catch (e) {
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// }
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// return supportsPassive;
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// }
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module.exports = _default; |