Multilingual Field initialisation proposal

multilingual-field.js

(function ($, Symphony, window, undefined) {

	function MultilingualField(field) {
		this.field = field;
		this.init();
	}

	MultilingualField.prototype =  {
		init: function () {
			var self = this,
			activeTab = this.field.find('ul.tabs li.active');

			// Fallback to first tab if no tab is set as active by default
			if (activeTab.length === 0) {
				activeTab = this.field.find('ul.tabs li:eq(0)');
			}

			// bind tab events
			this.field.find('ul.tabs li').bind('click', function (e) {
				e.preventDefault();
				self.setActiveTab(jQuery(this).attr('class').split(' ')[0]);
			});

			// Show the active tab
			this.setActiveTab(activeTab.attr('class').split(' ')[0]);
		},

		setActiveTab: function (tab_name) {
			var self = this;

			// hide all tab panels
			this.field.find('.tab-panel').hide();

			// find the desired tab and activate the tab and its panel
			this.field.find('ul.tabs li').each(function () {
				var tab = jQuery(this);

				if (tab.hasClass(tab_name)) {
					tab.addClass('active');

					var panel = tab.parent().parent().find('.tab-' + tab_name);
					panel.show();

				} else {
					tab.removeClass('active');
				}
			});
		}
	};

	// export Constructor
	window.MultilingualField = MultilingualField;
}(this.jQuery, this.Symphony, this));

multilingual_image_upload.content.js

(function ($, Symphony, window, undefined) {

	function init() {
		$('.field-multilingual_image_upload').each(function () {
			var field = new MultilingualField($(this));
		});

		if ($('div.file:has(a):has(em)').length === 0) {
			// Upload fields
			$('<em>' + Symphony.Language.get('Remove File') + '</em>').appendTo('div.file:has(a)').click(function (event) {
				var div = $(this).parent(),
				name = div.find('input').attr('name');
				// Prevent clicktrough
				event.preventDefault();
				// Add new empty file input
				div.empty().append('<input name="' + name + '" type="file">');
			});
		}
	}
	// wait for DOM to be ready
	$(function () {
		var base = Symphony.WEBSITE + '/extensions/multilingual_image_upload/assets/';
		if (typeof this.MultilingualField !== 'function') {

			$.getScript(base + 'multilingual-field.js', function () {
				init();
			});
		} else {
			init();
		}
	});
}(this.jQuery, this.Symphony, this));