97 lines
3.3 KiB
JavaScript
97 lines
3.3 KiB
JavaScript
'use strict';
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(function(global) {
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global.Ox = {
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load: function() {
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var args = arguments,
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callback = args[args.length - 1],
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path = getPath(),
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time = +new Date();
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if (args[0] === true) {
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path = path.replace(/dev\/$/, 'build/');
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loadScript('Ox.js', function() {
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Ox.PATH = path;
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Ox.load.apply(null, Ox.slice(args, 1));
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});
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} else {
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loadJSON(function(data) {
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var previousOx = global.Ox;
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loadScriptsSerial(data.files, function() {
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Ox.VERSION = data.version;
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Ox.forEach(previousOx, function(value, key) {
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if (Ox.isUndefined(Ox[key])) {
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Ox[key] = value;
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}
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});
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Ox.load.apply(null, args);
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});
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});
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}
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function getPath() {
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var i, path, scripts = document.getElementsByTagName('script');
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for (i = 0; i < scripts.length; i++) {
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if (/Ox\.js$/.test(scripts[i].src)) {
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path = scripts[i].src.replace(/Ox\.js$/, '');
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}
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}
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return path;
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}
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function loadJSON(callback) {
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var request = new XMLHttpRequest();
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request.open('GET', path + 'Ox/json/Ox.json?' + time, true);
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request.onreadystatechange = function() {
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if (request.readyState == 4) {
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if (request.status == 200) {
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callback(JSON.parse(request.responseText));
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}
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}
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};
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request.send();
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}
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function loadScriptsSerial(scripts, callback) {
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loadScriptsParallel(scripts.shift(), function() {
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if (scripts.length) {
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loadScriptsSerial(scripts, callback);
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} else {
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callback();
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}
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});
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}
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function loadScriptsParallel(scripts, callback) {
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var counter = 0, length = scripts.length;
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while (scripts.length) {
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loadScript(scripts.shift(), function() {
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++counter == length && callback();
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});
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}
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}
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function loadScript(script, callback) {
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var element = document.createElement('script'),
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head = document.head
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|| document.getElementsByTagName('head')[0]
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|| document.documentElement;
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if (/MSIE/.test(navigator.userAgent)) {
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// FIXME: find a way to check if css/js have loaded in MSIE
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setTimeout(callback, 2500);
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} else {
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element.onload = callback;
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}
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element.src = path + script + '?' + time;
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element.type = 'text/javascript';
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head.appendChild(element);
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}
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}
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};
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}(this));
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