deep-utils/lib/user-agent.js

Bunch of utils for deepjs and related.

/**
 * @author Gilles Coomans <gilles.coomans@gmail.com>
 */

if (typeof define !== 'function') {
	var define = require('amdefine')(module);
}
define([], function() {
	var _uaMatch = function(ua) {
		ua = ua.toLowerCase();
		var match = /(chrome)[ \/]([\w.]+)/.exec(ua) ||
			/(webkit)[ \/]([\w.]+)/.exec(ua) ||
			/(opera)(?:.*version|)[ \/]([\w.]+)/.exec(ua) ||
			/(msie) ([\w.]+)/.exec(ua) ||
			ua.indexOf('compatible') < 0 && /(mozilla)(?:.*? rv:([\w.]+)|)/.exec(ua) || [];
		return {
			browser: match[1] || '',
			version: match[2] || '0'
		};
	};

	return function() {
		var browser = {},
			matched = _uaMatch(navigator.userAgent);
		if (matched.browser) {
			browser[matched.browser] = true;
			browser.version = matched.version;
		}
		if (browser.chrome)
			browser.webkit = true;
		else if (browser.webkit)
			browser.safari = true;
		return browser;
	};
});