@cainiaofe/cn-utils/es/utils/browser/parser.js

菜鸟前端基础工具库

import browserParsersList from './browsersList';
import array from "../../common/array";
/**
 * The main class that arranges the whole parsing process.
 */
var Parser = /** @class */ (function () {
    function Parser(UA) {
        if (!UA) {
            throw new Error("UserAgent parameter can't be empty");
        }
        this._ua = UA;
        /**
         * @typedef ParsedResult
         * @property {Object} browser
         * @property {String|undefined} [browser.name]
         * Browser name, like `"Chrome"` or `"Internet Explorer"`
         * @property {String|undefined} [browser.version] Browser version as a String `"12.01.45334.10"`
         */
        // @ts-ignore
        this.parsedResult = {};
        this.parseBrowser();
    }
    /**
     * Get UserAgent string of current Parser instance
     * @return {String} User-Agent String of the current <Parser> object
     *
     * @public
     */
    Parser.prototype.getUA = function () {
        return this._ua;
    };
    /**
     * Test a UA string for a regexp
     * @param {RegExp} regex
     * @return {Boolean}
     */
    Parser.prototype.test = function (regex) {
        return regex.test(this._ua);
    };
    /**
     * Get parsed browser object
     * @return {Object}
     */
    Parser.prototype.parseBrowser = function () {
        var _this = this;
        // @ts-ignore
        this.parsedResult.browser = {};
        var browserDescriptor = array.find(browserParsersList, function (_browser) {
            if (typeof _browser.test === 'function') {
                return _browser.test(_this);
            }
            if (_browser.test instanceof Array) {
                return _browser.test.some(function (condition) { return _this.test(condition); });
            }
            throw new Error("Browser's test function is not valid");
        });
        if (browserDescriptor) {
            this.parsedResult.browser = browserDescriptor.describe(this.getUA());
        }
        return this.parsedResult.browser;
    };
    /**
     * Get parsed browser object
     * @return {Object}
     *
     * @public
     */
    Parser.prototype.getBrowser = function () {
        if (this.parsedResult.browser) {
            return this.parsedResult.browser;
        }
        return this.parseBrowser();
    };
    /**
     * Get browser's name
     * @return {String} Browser's name or an empty string
     *
     * @public
     */
    Parser.prototype.getBrowserName = function (toLowerCase) {
        if (toLowerCase) {
            return String(this.getBrowser().name).toLowerCase() || '';
        }
        return this.getBrowser().name || '';
    };
    /**
     * Get browser's version
     * @return {String} version of browser
     *
     * @public
     */
    Parser.prototype.getBrowserVersion = function () {
        return this.getBrowser().version;
    };
    return Parser;
}());
export default Parser;