81 lines
2.5 KiB
JavaScript
81 lines
2.5 KiB
JavaScript
|
var Browser = (function () {
|
||
|
|
function Browser() {
|
||
|
|
this.firefox = false;
|
||
|
|
this.ie = false;
|
||
|
|
this.edge = false;
|
||
|
|
this.newEdge = false;
|
||
|
|
this.weChat = false;
|
||
|
|
}
|
||
|
|
return Browser;
|
||
|
|
}());
|
||
|
|
var Env = (function () {
|
||
|
|
function Env() {
|
||
|
|
this.browser = new Browser();
|
||
|
|
this.node = false;
|
||
|
|
this.wxa = false;
|
||
|
|
this.worker = false;
|
||
|
|
this.svgSupported = false;
|
||
|
|
this.touchEventsSupported = false;
|
||
|
|
this.pointerEventsSupported = false;
|
||
|
|
this.domSupported = false;
|
||
|
|
this.transformSupported = false;
|
||
|
|
this.transform3dSupported = false;
|
||
|
|
this.hasGlobalWindow = typeof window !== 'undefined';
|
||
|
|
}
|
||
|
|
return Env;
|
||
|
|
}());
|
||
|
|
var env = new Env();
|
||
|
|
if (typeof wx === 'object' && typeof wx.getSystemInfoSync === 'function') {
|
||
|
|
env.wxa = true;
|
||
|
|
env.touchEventsSupported = true;
|
||
|
|
}
|
||
|
|
else if (typeof document === 'undefined' && typeof self !== 'undefined') {
|
||
|
|
env.worker = true;
|
||
|
|
}
|
||
|
|
else if (typeof navigator === 'undefined'
|
||
|
|
|| navigator.userAgent.indexOf('Node.js') === 0) {
|
||
|
|
env.node = true;
|
||
|
|
env.svgSupported = true;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
detect(navigator.userAgent, env);
|
||
|
|
}
|
||
|
|
function detect(ua, env) {
|
||
|
|
var browser = env.browser;
|
||
|
|
var firefox = ua.match(/Firefox\/([\d.]+)/);
|
||
|
|
var ie = ua.match(/MSIE\s([\d.]+)/)
|
||
|
|
|| ua.match(/Trident\/.+?rv:(([\d.]+))/);
|
||
|
|
var edge = ua.match(/Edge?\/([\d.]+)/);
|
||
|
|
var weChat = (/micromessenger/i).test(ua);
|
||
|
|
if (firefox) {
|
||
|
|
browser.firefox = true;
|
||
|
|
browser.version = firefox[1];
|
||
|
|
}
|
||
|
|
if (ie) {
|
||
|
|
browser.ie = true;
|
||
|
|
browser.version = ie[1];
|
||
|
|
}
|
||
|
|
if (edge) {
|
||
|
|
browser.edge = true;
|
||
|
|
browser.version = edge[1];
|
||
|
|
browser.newEdge = +edge[1].split('.')[0] > 18;
|
||
|
|
}
|
||
|
|
if (weChat) {
|
||
|
|
browser.weChat = true;
|
||
|
|
}
|
||
|
|
env.svgSupported = typeof SVGRect !== 'undefined';
|
||
|
|
env.touchEventsSupported = 'ontouchstart' in window && !browser.ie && !browser.edge;
|
||
|
|
env.pointerEventsSupported = 'onpointerdown' in window
|
||
|
|
&& (browser.edge || (browser.ie && +browser.version >= 11));
|
||
|
|
env.domSupported = typeof document !== 'undefined';
|
||
|
|
var style = document.documentElement.style;
|
||
|
|
env.transform3dSupported = ((browser.ie && 'transition' in style)
|
||
|
|
|| browser.edge
|
||
|
|
|| (('WebKitCSSMatrix' in window) && ('m11' in new WebKitCSSMatrix()))
|
||
|
|
|| 'MozPerspective' in style)
|
||
|
|
&& !('OTransition' in style);
|
||
|
|
env.transformSupported = env.transform3dSupported
|
||
|
|
|| (browser.ie && +browser.version >= 9);
|
||
|
|
}
|
||
|
|
export default env;
|