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166 lines (113 loc) · 2.58 KB
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/*!
* jQuery Require Plugin v1.0.1
* https://github.com/masalygin/jquery.require
*
* Copyright 2014 Ilya Masalygin
* Released under the MIT license
*/
(function($) {
var require = function(options) {
if ($.type(options) !== 'object') {
return require({files: [].slice.call(arguments)});
}
options = $.extend({}, {
files: [],
async: true,
cache: true,
once: true
}, options);
return options.async ? require.async(options) : require.sync(options);
};
$.extend(require, {
cache: {},
clear: function(type) {
if (type) {
delete require.cache[type];
} else {
require.cache = {};
}
},
async: function(options) {
return (function(options) {
var deferred = $.Deferred();
var files = options.files;
var len = files.length;
var index = 0;
$.each(files, function(i, file) {
require.load(file, options).done(function() {
index++;
deferred.notify(file, index, len);
if (index === len) {
deferred.resolve();
}
});
});
return deferred.promise();
})(options);
},
sync: function(options) {
return (function(options) {
var deferred = $.Deferred();
var files = options.files;
var len = files.length;
var index = 0;
function load(file) {
require.load(file, options).done(function() {
index++;
deferred.notify(file, index, len);
if (index < len) {
load(files[index]);
} else {
deferred.resolve();
}
});
}
load(files[index]);
return deferred.promise();
})(options);
},
load: function(url, options) {
var parts = url.split('.');
var ext = parts[parts.length - 1];
if (require[ext]) {
if (options.once) {
if (!require.cache[ext]) {
require.cache[ext] = {};
}
if (!require.cache[ext][url]) {
require.cache[ext][url] = require[ext](url, options);
}
return require.cache[ext][url];
} else {
return require[ext](url, options);
}
}
throw new Error('extension ' + ext + ' is not supported');
},
js: function(url, options) {
return $.ajax({
dataType: 'script',
cache: options.cache,
url: url
});
},
css: function(url, options) {
var deferred = $.Deferred();
var img;
if (!options.cache) {
url += '?_=' + $.now();
}
$('<link>', {
rel: 'stylesheet',
href: url
}).appendTo(document.head);
img = new Image();
img.onerror = function() {
deferred.resolve();
};
img.src = url;
return deferred.promise();
}
});
$.require = require;
})(jQuery);