77 lines
2.3 KiB
JavaScript
77 lines
2.3 KiB
JavaScript
define([
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'jquery',
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'/common/common-util.js',
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], function ($, Util) {
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var Tools = {};
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Tools.supportsSharedArrayBuffers = function () {
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try {
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return Object.prototype.toString.call(new window.WebAssembly.Memory({
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shared: true,
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initial: 0,
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maximum: 0,
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}).buffer) === '[object SharedArrayBuffer]';
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} catch (err) {
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console.error(err);
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}
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return false;
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};
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var OS_HINTS = {
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"Win": "Windows",
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"Mac": "MacOS",
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"X11": "UNIX",
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"Linux": "Linux",
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};
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Tools.guessOS = function () {
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var result = "UNKNOWN";
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if (!window.navigator || !window.navigator.appVersion) { return result; }
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result = window.navigator.appVersion;
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console.log(result);
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Object.keys(OS_HINTS).some(function (key) {
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if (result.indexOf(key) === -1) { return; }
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result = OS_HINTS[key]; // else
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return true;
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});
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return result;
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};
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Tools.isSafari = function () {
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return navigator.vendor.match(/apple/i);
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};
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Tools.isChrome = function () {
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return navigator.vendor.match(/google/i);
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};
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Tools.guessBrowser = function () {
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if (Tools.isChrome()) { return 'chrome/blink'; }
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if (Tools.isSafari()) { return 'safari/webkit'; }
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if (navigator.userAgent.match(/firefox\//i)) { return 'firefox/gecko'; }
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if (navigator.userAgent.match(/edge\//i)) { return 'edge/edgehtml'; }
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if (navigator.userAgent.match(/trident\//i)) { return 'ie/trident'; }
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return navigator.userAgent + "\n" + navigator.vendor;
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};
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Tools.cacheBuster = function (url) {
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if (/\?/.test(url)) { return url; }
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return url + '?test=' + (+new Date());
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};
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var common_map = {};
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Tools.common_xhr = function (url, _cb) {
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var cb = Util.once(Util.once(Util.mkAsync(_cb)));
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var ready = common_map[url];
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if (ready) { return void ready.reg(cb); }
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ready = common_map[url] = Util.mkEvent(true);
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ready.reg(cb);
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return void $.ajax(Tools.cacheBuster(url), {
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dataType: 'text',
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complete: function (xhr) {
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ready.fire(xhr);
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},
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});
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};
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return Tools;
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});
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