oxjs/source/Ox.js

103 lines
3.5 KiB
JavaScript

'use strict';
(function(global) {
global.Ox = {
load: function() {
var args = arguments,
callback = args[args.length - 1],
path = getPath(),
regexp = /dev\/$/,
time = +new Date();
if (args[0] === true && regexp.test(path)) {
path = path.replace(regexp, 'build/');
loadScript('Ox.js', function() {
Ox.PATH = path;
Ox.load.apply(null, Ox.slice(args, 1));
});
} else {
loadJSON(function(data) {
var previousOx = global.Ox;
loadScriptsSerial(data.files, function() {
Ox.LOCALES = data.locales;
Ox.VERSION = data.version;
Ox.forEach(previousOx, function(value, key) {
if (Ox.isUndefined(Ox[key])) {
Ox[key] = value;
}
});
Ox.load.apply(null, args);
});
});
}
function getPath() {
var index, regexp = /Ox\.js(\?\d+|)$/,
scripts = document.getElementsByTagName('script'), src;
for (index = scripts.length - 1; index >= 0; index--) {
src = scripts[index].src;
if (regexp.test(src)) {
return src.replace(regexp, '');
}
}
}
function loadJSON(callback) {
var request = new XMLHttpRequest();
request.open('GET', path + 'Ox/json/Ox.json?' + time, true);
request.onreadystatechange = function() {
if (request.readyState == 4) {
if (request.status == 200) {
callback(JSON.parse(request.responseText));
}
}
};
request.send();
}
function loadScript(script, callback) {
var element = document.createElement('script'),
head = document.head
|| document.getElementsByTagName('head')[0]
|| document.documentElement;
element.onload = element.onreadystatechange = function() {
if (
!this.readyState
|| this.readyState == 'loaded'
|| this.readyState == 'complete'
) {
callback();
}
}
element.src = path + script + '?' + time;
element.type = 'text/javascript';
head.appendChild(element);
}
function loadScriptsParallel(scripts, callback) {
var i = 0, n = scripts.length;
while (scripts.length) {
loadScript(scripts.shift(), function() {
++i == n && callback();
});
}
}
function loadScriptsSerial(scripts, callback) {
loadScriptsParallel(scripts.shift(), function() {
if (scripts.length) {
loadScriptsSerial(scripts, callback);
} else {
callback();
}
});
}
}
};
}(this));