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public/assets/plugins/custom/jquery-chained/jquery.chained.js
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public/assets/plugins/custom/jquery-chained/jquery.chained.js
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/*
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* Chained - jQuery / Zepto chained selects plugin
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*
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* Copyright (c) 2010-2017 Mika Tuupola
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*
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* Licensed under the MIT license:
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* http://www.opensource.org/licenses/mit-license.php
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*
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* Project home:
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* http://www.appelsiini.net/projects/chained
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*
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* Version: 2.0.0-beta.2
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*
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*/
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;(function($, window, document, undefined) {
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"use strict";
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$.fn.chained = function(parentSelector) {
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return this.each(function() {
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/* Save this to child because this changes when scope changes. */
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var child = this;
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var backup = $(child).clone();
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/* Handles maximum two parents now. */
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$(parentSelector).each(function() {
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$(this).bind("change", function() {
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updateChildren();
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});
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/* Force IE to see something selected on first page load, */
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/* unless something is already selected */
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if (!$("option:selected", this).length) {
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$("option", this).first().attr("selected", "selected");
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}
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/* Force updating the children. */
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updateChildren();
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});
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function updateChildren() {
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var triggerChange = true;
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var currentlySelectedValue = $("option:selected", child).val();
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$(child).html(backup.html());
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/* If multiple parents build value like foo+bar. */
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var selected = "";
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$(parentSelector).each(function() {
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var selectedValue = $("option:selected", this).val();
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if (selectedValue) {
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if (selected.length > 0) {
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selected += "+";
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}
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selected += selectedValue;
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}
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});
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/* Also check for first parent without subclassing. */
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/* TODO: This should be dynamic and check for each parent */
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/* without subclassing. */
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var first;
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if ($.isArray(parentSelector)) {
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first = $(parentSelector[0]).first();
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} else {
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first = $(parentSelector).first();
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}
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var selectedFirst = $("option:selected", first).val();
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$("option", child).each(function() {
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/* Always leave the default value in place. */
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if ($(this).val() === "") {
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return;
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}
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var matches = [];
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var data = $(this).data("chained");
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if (data) {
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matches = data.split(" ");
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}
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if ((matches.indexOf(selected) > -1) || (matches.indexOf(selectedFirst) > -1)) {
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if ($(this).val() === currentlySelectedValue) {
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$(this).prop("selected", true);
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triggerChange = false;
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}
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} else {
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$(this).remove();
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}
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});
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/* If we have only the default value disable select. */
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if (1 === $("option", child).length && $(child).val() === "") {
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$(child).prop("disabled", true);
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} else {
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$(child).prop("disabled", false);
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}
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if (triggerChange) {
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$(child).trigger("change");
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}
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}
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});
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};
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/* Alias for those who like to use more English like syntax. */
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$.fn.chainedTo = $.fn.chained;
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/* Default settings for plugin. */
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$.fn.chained.defaults = {};
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})(window.jQuery || window.Zepto, window, document);
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