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select2/src/js/jquery.select2.js
Kevin Brown a993ed9ca9 Warn when Select2 is called without being initalized
Since Select2 methods should not be called on an element where
Select2 has not yet been initialized, this raises an error when it
happens.  This does not silence the original error, but it does
provide the user with some more context about why they are seeing
a TypeError.

This closes https://github.com/select2/select2/issues/3173.
2015-04-02 11:41:18 -04:00

58 lines
1.4 KiB
JavaScript

define([
'jquery',
'require',
'./select2/core',
'./select2/defaults'
], function ($, require, Select2, Defaults) {
// Force jQuery.mousewheel to be loaded if it hasn't already
require('jquery.mousewheel');
if ($.fn.select2 == null) {
// All methods that should return the element
var thisMethods = ['open', 'close', 'destroy'];
$.fn.select2 = function (options) {
options = options || {};
if (typeof options === 'object') {
this.each(function () {
var instanceOptions = $.extend({}, options, true);
var instance = new Select2($(this), instanceOptions);
});
return this;
} else if (typeof options === 'string') {
var instance = this.data('select2');
if (instance == null && window.console && console.error) {
console.error(
'The select2(\'' + options + '\') method was called on an ' +
'element that is not using Select2.'
);
}
var args = Array.prototype.slice.call(arguments, 1);
var ret = instance[options](args);
// Check if we should be returning `this`
if ($.inArray(options, thisMethods) > -1) {
return this;
}
return ret;
} else {
throw new Error('Invalid arguments for Select2: ' + options);
}
};
}
if ($.fn.select2.defaults == null) {
$.fn.select2.defaults = Defaults;
}
return Select2;
});