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+/*
+ Copyright 2012 Igor Vaynberg
+
+ Version: 3.2 Timestamp: Mon Sep 10 10:38:04 PDT 2012
+
+ Licensed under the Apache License, Version 2.0 (the "License"); you may not use this work except in
+ compliance with the License. You may obtain a copy of the License in the LICENSE file, or at:
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software distributed under the License is
+ distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and limitations under the License.
+ */
+ (function ($) {
+ if(typeof $.fn.each2 == "undefined"){
+ $.fn.extend({
+ /*
+ * 4-10 times faster .each replacement
+ * use it carefully, as it overrides jQuery context of element on each iteration
+ */
+ each2 : function (c) {
+ var j = $([0]), i = -1, l = this.length;
+ while (
+ ++i < l
+ && (j.context = j[0] = this[i])
+ && c.call(j[0], i, j) !== false //"this"=DOM, i=index, j=jQuery object
+ );
+ return this;
+ }
+ });
+ }
+})(jQuery);
+
+(function ($, undefined) {
+ "use strict";
+ /*global document, window, jQuery, console */
+
+ if (window.Select2 !== undefined) {
+ return;
+ }
+
+ var KEY, AbstractSelect2, SingleSelect2, MultiSelect2, nextUid, sizer;
+
+ KEY = {
+ TAB: 9,
+ ENTER: 13,
+ ESC: 27,
+ SPACE: 32,
+ LEFT: 37,
+ UP: 38,
+ RIGHT: 39,
+ DOWN: 40,
+ SHIFT: 16,
+ CTRL: 17,
+ ALT: 18,
+ PAGE_UP: 33,
+ PAGE_DOWN: 34,
+ HOME: 36,
+ END: 35,
+ BACKSPACE: 8,
+ DELETE: 46,
+ isArrow: function (k) {
+ k = k.which ? k.which : k;
+ switch (k) {
+ case KEY.LEFT:
+ case KEY.RIGHT:
+ case KEY.UP:
+ case KEY.DOWN:
+ return true;
+ }
+ return false;
+ },
+ isControl: function (e) {
+ var k = e.which;
+ switch (k) {
+ case KEY.SHIFT:
+ case KEY.CTRL:
+ case KEY.ALT:
+ return true;
+ }
+
+ if (e.metaKey) return true;
+
+ return false;
+ },
+ isFunctionKey: function (k) {
+ k = k.which ? k.which : k;
+ return k >= 112 && k <= 123;
+ }
+ };
+
+ nextUid=(function() { var counter=1; return function() { return counter++; }; }());
+
+ function indexOf(value, array) {
+ var i = 0, l = array.length, v;
+
+ if (typeof value === "undefined") {
+ return -1;
+ }
+
+ if (value.constructor === String) {
+ for (; i < l; i = i + 1) if (value.localeCompare(array[i]) === 0) return i;
+ } else {
+ for (; i < l; i = i + 1) {
+ v = array[i];
+ if (v.constructor === String) {
+ if (v.localeCompare(value) === 0) return i;
+ } else {
+ if (v === value) return i;
+ }
+ }
+ }
+ return -1;
+ }
+
+ /**
+ * Compares equality of a and b taking into account that a and b may be strings, in which case localeCompare is used
+ * @param a
+ * @param b
+ */
+ function equal(a, b) {
+ if (a === b) return true;
+ if (a === undefined || b === undefined) return false;
+ if (a === null || b === null) return false;
+ if (a.constructor === String) return a.localeCompare(b) === 0;
+ if (b.constructor === String) return b.localeCompare(a) === 0;
+ return false;
+ }
+
+ /**
+ * Splits the string into an array of values, trimming each value. An empty array is returned for nulls or empty
+ * strings
+ * @param string
+ * @param separator
+ */
+ function splitVal(string, separator) {
+ var val, i, l;
+ if (string === null || string.length < 1) return [];
+ val = string.split(separator);
+ for (i = 0, l = val.length; i < l; i = i + 1) val[i] = $.trim(val[i]);
+ return val;
+ }
+
+ function getSideBorderPadding(element) {
+ return element.outerWidth() - element.width();
+ }
+
+ function installKeyUpChangeEvent(element) {
+ var key="keyup-change-value";
+ element.bind("keydown", function () {
+ if ($.data(element, key) === undefined) {
+ $.data(element, key, element.val());
+ }
+ });
+ element.bind("keyup", function () {
+ var val= $.data(element, key);
+ if (val !== undefined && element.val() !== val) {
+ $.removeData(element, key);
+ element.trigger("keyup-change");
+ }
+ });
+ }
+
+ $(document).delegate("body", "mousemove", function (e) {
+ $.data(document, "select2-lastpos", {x: e.pageX, y: e.pageY});
+ });
+
+ /**
+ * filters mouse events so an event is fired only if the mouse moved.
+ *
+ * filters out mouse events that occur when mouse is stationary but
+ * the elements under the pointer are scrolled.
+ */
+ function installFilteredMouseMove(element) {
+ element.bind("mousemove", function (e) {
+ var lastpos = $.data(document, "select2-lastpos");
+ if (lastpos === undefined || lastpos.x !== e.pageX || lastpos.y !== e.pageY) {
+ $(e.target).trigger("mousemove-filtered", e);
+ }
+ });
+ }
+
+ /**
+ * Debounces a function. Returns a function that calls the original fn function only if no invocations have been made
+ * within the last quietMillis milliseconds.
+ *
+ * @param quietMillis number of milliseconds to wait before invoking fn
+ * @param fn function to be debounced
+ * @param ctx object to be used as this reference within fn
+ * @return debounced version of fn
+ */
+ function debounce(quietMillis, fn, ctx) {
+ ctx = ctx || undefined;
+ var timeout;
+ return function () {
+ var args = arguments;
+ window.clearTimeout(timeout);
+ timeout = window.setTimeout(function() {
+ fn.apply(ctx, args);
+ }, quietMillis);
+ };
+ }
+
+ /**
+ * A simple implementation of a thunk
+ * @param formula function used to lazily initialize the thunk
+ * @return {Function}
+ */
+ function thunk(formula) {
+ var evaluated = false,
+ value;
+ return function() {
+ if (evaluated === false) { value = formula(); evaluated = true; }
+ return value;
+ };
+ };
+
+ function installDebouncedScroll(threshold, element) {
+ var notify = debounce(threshold, function (e) { element.trigger("scroll-debounced", e);});
+ element.bind("scroll", function (e) {
+ if (indexOf(e.target, element.get()) >= 0) notify(e);
+ });
+ }
+
+ function killEvent(event) {
+ event.preventDefault();
+ event.stopPropagation();
+ }
+
+ function measureTextWidth(e) {
+ if (!sizer){
+ var style = e[0].currentStyle || window.getComputedStyle(e[0], null);
+ sizer = $("<div></div>").css({
+ position: "absolute",
+ left: "-10000px",
+ top: "-10000px",
+ display: "none",
+ fontSize: style.fontSize,
+ fontFamily: style.fontFamily,
+ fontStyle: style.fontStyle,
+ fontWeight: style.fontWeight,
+ letterSpacing: style.letterSpacing,
+ textTransform: style.textTransform,
+ whiteSpace: "nowrap"
+ });
+ $("body").append(sizer);
+ }
+ sizer.text(e.val());
+ return sizer.width();
+ }
+
+ function markMatch(text, term, markup) {
+ var match=text.toUpperCase().indexOf(term.toUpperCase()),
+ tl=term.length;
+
+ if (match<0) {
+ markup.push(text);
+ return;
+ }
+
+ markup.push(text.substring(0, match));
+ markup.push("<span class='select2-match'>");
+ markup.push(text.substring(match, match + tl));
+ markup.push("</span>");
+ markup.push(text.substring(match + tl, text.length));
+ }
+
+ /**
+ * Produces an ajax-based query function
+ *
+ * @param options object containing configuration paramters
+ * @param options.transport function that will be used to execute the ajax request. must be compatible with parameters supported by $.ajax
+ * @param options.url url for the data
+ * @param options.data a function(searchTerm, pageNumber, context) that should return an object containing query string parameters for the above url.
+ * @param options.dataType request data type: ajax, jsonp, other datatatypes supported by jQuery's $.ajax function or the transport function if specified
+ * @param options.traditional a boolean flag that should be true if you wish to use the traditional style of param serialization for the ajax request
+ * @param options.quietMillis (optional) milliseconds to wait before making the ajaxRequest, helps debounce the ajax function if invoked too often
+ * @param options.results a function(remoteData, pageNumber) that converts data returned form the remote request to the format expected by Select2.
+ * The expected format is an object containing the following keys:
+ * results array of objects that will be used as choices
+ * more (optional) boolean indicating whether there are more results available
+ * Example: {results:[{id:1, text:'Red'},{id:2, text:'Blue'}], more:true}
+ */
+ function ajax(options) {
+ var timeout, // current scheduled but not yet executed request
+ requestSequence = 0, // sequence used to drop out-of-order responses
+ handler = null,
+ quietMillis = options.quietMillis || 100;
+
+ return function (query) {
+ window.clearTimeout(timeout);
+ timeout = window.setTimeout(function () {
+ requestSequence += 1; // increment the sequence
+ var requestNumber = requestSequence, // this request's sequence number
+ data = options.data, // ajax data function
+ transport = options.transport || $.ajax,
+ traditional = options.traditional || false,
+ type = options.type || 'GET'; // set type of request (GET or POST)
+
+ data = data.call(this, query.term, query.page, query.context);
+
+ if( null !== handler) { handler.abort(); }
+
+ handler = transport.call(null, {
+ url: options.url,
+ dataType: options.dataType,
+ data: data,
+ type: type,
+ traditional: traditional,
+ success: function (data) {
+ if (requestNumber < requestSequence) {
+ return;
+ }
+ // TODO 3.0 - replace query.page with query so users have access to term, page, etc.
+ var results = options.results(data, query.page);
+ query.callback(results);
+ }
+ });
+ }, quietMillis);
+ };
+ }
+
+ /**
+ * Produces a query function that works with a local array
+ *
+ * @param options object containing configuration parameters. The options parameter can either be an array or an
+ * object.
+ *
+ * If the array form is used it is assumed that it contains objects with 'id' and 'text' keys.
+ *
+ * If the object form is used ti is assumed that it contains 'data' and 'text' keys. The 'data' key should contain
+ * an array of objects that will be used as choices. These objects must contain at least an 'id' key. The 'text'
+ * key can either be a String in which case it is expected that each element in the 'data' array has a key with the
+ * value of 'text' which will be used to match choices. Alternatively, text can be a function(item) that can extract
+ * the text.
+ */
+ function local(options) {
+ var data = options, // data elements
+ dataText,
+ text = function (item) { return ""+item.text; }; // function used to retrieve the text portion of a data item that is matched against the search
+
+ if (!$.isArray(data)) {
+ text = data.text;
+ // if text is not a function we assume it to be a key name
+ if (!$.isFunction(text)) {
+ dataText = data.text; // we need to store this in a separate variable because in the next step data gets reset and data.text is no longer available
+ text = function (item) { return item[dataText]; };
+ }
+ data = data.results;
+ }
+
+ return function (query) {
+ var t = query.term, filtered = { results: [] }, process;
+ if (t === "") {
+ query.callback({results: data});
+ return;
+ }
+
+ process = function(datum, collection) {
+ var group, attr;
+ datum = datum[0];
+ if (datum.children) {
+ group = {};
+ for (attr in datum) {
+ if (datum.hasOwnProperty(attr)) group[attr]=datum[attr];
+ }
+ group.children=[];
+ $(datum.children).each2(function(i, childDatum) { process(childDatum, group.children); });
+ if (group.children.length) {
+ collection.push(group);
+ }
+ } else {
+ if (query.matcher(t, text(datum))) {
+ collection.push(datum);
+ }
+ }
+ };
+
+ $(data).each2(function(i, datum) { process(datum, filtered.results); });
+ query.callback(filtered);
+ };
+ }
+
+ // TODO javadoc
+ function tags(data) {
+ // TODO even for a function we should probably return a wrapper that does the same object/string check as
+ // the function for arrays. otherwise only functions that return objects are supported.
+ if ($.isFunction(data)) {
+ return data;
+ }
+
+ // if not a function we assume it to be an array
+
+ return function (query) {
+ var t = query.term, filtered = {results: []};
+ $(data).each(function () {
+ var isObject = this.text !== undefined,
+ text = isObject ? this.text : this;
+ if (t === "" || query.matcher(t, text)) {
+ filtered.results.push(isObject ? this : {id: this, text: this});
+ }
+ });
+ query.callback(filtered);
+ };
+ }
+
+ /**
+ * Checks if the formatter function should be used.
+ *
+ * Throws an error if it is not a function. Returns true if it should be used,
+ * false if no formatting should be performed.
+ *
+ * @param formatter
+ */
+ function checkFormatter(formatter, formatterName) {
+ if ($.isFunction(formatter)) return true;
+ if (!formatter) return false;
+ throw new Error("formatterName must be a function or a falsy value");
+ }
+
+ function evaluate(val) {
+ return $.isFunction(val) ? val() : val;
+ }
+
+ function countResults(results) {
+ var count = 0;
+ $.each(results, function(i, item) {
+ if (item.children) {
+ count += countResults(item.children);
+ } else {
+ count++;
+ }
+ });
+ return count;
+ }
+
+ /**
+ * Default tokenizer. This function uses breaks the input on substring match of any string from the
+ * opts.tokenSeparators array and uses opts.createSearchChoice to create the choice object. Both of those
+ * two options have to be defined in order for the tokenizer to work.
+ *
+ * @param input text user has typed so far or pasted into the search field
+ * @param selection currently selected choices
+ * @param selectCallback function(choice) callback tho add the choice to selection
+ * @param opts select2's opts
+ * @return undefined/null to leave the current input unchanged, or a string to change the input to the returned value
+ */
+ function defaultTokenizer(input, selection, selectCallback, opts) {
+ var original = input, // store the original so we can compare and know if we need to tell the search to update its text
+ dupe = false, // check for whether a token we extracted represents a duplicate selected choice
+ token, // token
+ index, // position at which the separator was found
+ i, l, // looping variables
+ separator; // the matched separator
+
+ if (!opts.createSearchChoice || !opts.tokenSeparators || opts.tokenSeparators.length < 1) return undefined;
+
+ while (true) {
+ index = -1;
+
+ for (i = 0, l = opts.tokenSeparators.length; i < l; i++) {
+ separator = opts.tokenSeparators[i];
+ index = input.indexOf(separator);
+ if (index >= 0) break;
+ }
+
+ if (index < 0) break; // did not find any token separator in the input string, bail
+
+ token = input.substring(0, index);
+ input = input.substring(index + separator.length);
+
+ if (token.length > 0) {
+ token = opts.createSearchChoice(token, selection);
+ if (token !== undefined && token !== null && opts.id(token) !== undefined && opts.id(token) !== null) {
+ dupe = false;
+ for (i = 0, l = selection.length; i < l; i++) {
+ if (equal(opts.id(token), opts.id(selection[i]))) {
+ dupe = true; break;
+ }
+ }
+
+ if (!dupe) selectCallback(token);
+ }
+ }
+ }
+
+ if (original.localeCompare(input) != 0) return input;
+ }
+
+ /**
+ * blurs any Select2 container that has focus when an element outside them was clicked or received focus
+ *
+ * also takes care of clicks on label tags that point to the source element
+ */
+ $(document).ready(function () {
+ $(document).delegate("body", "mousedown touchend", function (e) {
+ var target = $(e.target).closest("div.select2-container").get(0), attr;
+ if (target) {
+ $(document).find("div.select2-container-active").each(function () {
+ if (this !== target) $(this).data("select2").blur();
+ });
+ } else {
+ target = $(e.target).closest("div.select2-drop").get(0);
+ $(document).find("div.select2-drop-active").each(function () {
+ if (this !== target) $(this).data("select2").blur();
+ });
+ }
+
+ target=$(e.target);
+ attr = target.attr("for");
+ if ("LABEL" === e.target.tagName && attr && attr.length > 0) {
+ target = $("#"+attr);
+ target = target.data("select2");
+ if (target !== undefined) { target.focus(); e.preventDefault();}
+ }
+ });
+ });
+
+ /**
+ * Creates a new class
+ *
+ * @param superClass
+ * @param methods
+ */
+ function clazz(SuperClass, methods) {
+ var constructor = function () {};
+ constructor.prototype = new SuperClass;
+ constructor.prototype.constructor = constructor;
+ constructor.prototype.parent = SuperClass.prototype;
+ constructor.prototype = $.extend(constructor.prototype, methods);
+ return constructor;
+ }
+
+ AbstractSelect2 = clazz(Object, {
+
+ // abstract
+ bind: function (func) {
+ var self = this;
+ return function () {
+ func.apply(self, arguments);
+ };
+ },
+
+ // abstract
+ init: function (opts) {
+ var results, search, resultsSelector = ".select2-results";
+
+ // prepare options
+ this.opts = opts = this.prepareOpts(opts);
+
+ this.id=opts.id;
+
+ // destroy if called on an existing component
+ if (opts.element.data("select2") !== undefined &&
+ opts.element.data("select2") !== null) {
+ this.destroy();
+ }
+
+ this.enabled=true;
+ this.container = this.createContainer();
+
+ this.containerId="s2id_"+(opts.element.attr("id") || "autogen"+nextUid());
+ this.containerSelector="#"+this.containerId.replace(/([;&,\.\+\*\~':"\!\^#$%@\[\]\(\)=>\|])/g, '\\$1');
+ this.container.attr("id", this.containerId);
+
+ // cache the body so future lookups are cheap
+ this.body = thunk(function() { return opts.element.closest("body"); });
+
+ if (opts.element.attr("class") !== undefined) {
+ this.container.addClass(opts.element.attr("class").replace(/validate\[[\S ]+] ?/, ''));
+ }
+
+ this.container.css(evaluate(opts.containerCss));
+ this.container.addClass(evaluate(opts.containerCssClass));
+
+ // swap container for the element
+ this.opts.element
+ .data("select2", this)
+ .hide()
+ .before(this.container);
+ this.container.data("select2", this);
+
+ this.dropdown = this.container.find(".select2-drop");
+ this.dropdown.addClass(evaluate(opts.dropdownCssClass));
+ this.dropdown.data("select2", this);
+
+ this.results = results = this.container.find(resultsSelector);
+ this.search = search = this.container.find("input.select2-input");
+
+ search.attr("tabIndex", this.opts.element.attr("tabIndex"));
+
+ this.resultsPage = 0;
+ this.context = null;
+
+ // initialize the container
+ this.initContainer();
+ this.initContainerWidth();
+
+ installFilteredMouseMove(this.results);
+ this.dropdown.delegate(resultsSelector, "mousemove-filtered", this.bind(this.highlightUnderEvent));
+
+ installDebouncedScroll(80, this.results);
+ this.dropdown.delegate(resultsSelector, "scroll-debounced", this.bind(this.loadMoreIfNeeded));
+
+ // if jquery.mousewheel plugin is installed we can prevent out-of-bounds scrolling of results via mousewheel
+ if ($.fn.mousewheel) {
+ results.mousewheel(function (e, delta, deltaX, deltaY) {
+ var top = results.scrollTop(), height;
+ if (deltaY > 0 && top - deltaY <= 0) {
+ results.scrollTop(0);
+ killEvent(e);
+ } else if (deltaY < 0 && results.get(0).scrollHeight - results.scrollTop() + deltaY <= results.height()) {
+ results.scrollTop(results.get(0).scrollHeight - results.height());
+ killEvent(e);
+ }
+ });
+ }
+
+ installKeyUpChangeEvent(search);
+ search.bind("keyup-change", this.bind(this.updateResults));
+ search.bind("focus", function () { search.addClass("select2-focused"); if (search.val() === " ") search.val(""); });
+ search.bind("blur", function () { search.removeClass("select2-focused");});
+
+ this.dropdown.delegate(resultsSelector, "mouseup", this.bind(function (e) {
+ if ($(e.target).closest(".select2-result-selectable:not(.select2-disabled)").length > 0) {
+ this.highlightUnderEvent(e);
+ this.selectHighlighted(e);
+ } else {
+ this.focusSearch();
+ }
+ killEvent(e);
+ }));
+
+ // trap all mouse events from leaving the dropdown. sometimes there may be a modal that is listening
+ // for mouse events outside of itself so it can close itself. since the dropdown is now outside the select2's
+ // dom it will trigger the popup close, which is not what we want
+ this.dropdown.bind("click mouseup mousedown", function (e) { e.stopPropagation(); });
+
+ if ($.isFunction(this.opts.initSelection)) {
+ // initialize selection based on the current value of the source element
+ this.initSelection();
+
+ // if the user has provided a function that can set selection based on the value of the source element
+ // we monitor the change event on the element and trigger it, allowing for two way synchronization
+ this.monitorSource();
+ }
+
+ if (opts.element.is(":disabled") || opts.element.is("[readonly='readonly']")) this.disable();
+ },
+
+ // abstract
+ destroy: function () {
+ var select2 = this.opts.element.data("select2");
+ if (select2 !== undefined) {
+ select2.container.remove();
+ select2.dropdown.remove();
+ select2.opts.element
+ .removeData("select2")
+ .unbind(".select2")
+ .show();
+ }
+ },
+
+ // abstract
+ prepareOpts: function (opts) {
+ var element, select, idKey, ajaxUrl;
+
+ element = opts.element;
+
+ if (element.get(0).tagName.toLowerCase() === "select") {
+ this.select = select = opts.element;
+ }
+
+ if (select) {
+ // these options are not allowed when attached to a select because they are picked up off the element itself
+ $.each(["id", "multiple", "ajax", "query", "createSearchChoice", "initSelection", "data", "tags"], function () {
+ if (this in opts) {
+ throw new Error("Option '" + this + "' is not allowed for Select2 when attached to a <select> element.");
+ }
+ });
+ }
+
+ opts = $.extend({}, {
+ populateResults: function(container, results, query) {
+ var populate, data, result, children, id=this.opts.id, self=this;
+
+ populate=function(results, container, depth) {
+
+ var i, l, result, selectable, compound, node, label, innerContainer, formatted;
+ for (i = 0, l = results.length; i < l; i = i + 1) {
+
+ result=results[i];
+ selectable=id(result) !== undefined;
+ compound=result.children && result.children.length > 0;
+
+ node=$("<li></li>");
+ node.addClass("select2-results-dept-"+depth);
+ node.addClass("select2-result");
+ node.addClass(selectable ? "select2-result-selectable" : "select2-result-unselectable");
+ if (compound) { node.addClass("select2-result-with-children"); }
+ node.addClass(self.opts.formatResultCssClass(result));
+
+ label=$("<div></div>");
+ label.addClass("select2-result-label");
+
+ formatted=opts.formatResult(result, label, query);
+ if (formatted!==undefined) {
+ label.html(self.opts.escapeMarkup(formatted));
+ }
+
+ node.append(label);
+
+ if (compound) {
+
+ innerContainer=$("<ul></ul>");
+ innerContainer.addClass("select2-result-sub");
+ populate(result.children, innerContainer, depth+1);
+ node.append(innerContainer);
+ }
+
+ node.data("select2-data", result);
+ container.append(node);
+ }
+ };
+
+ populate(results, container, 0);
+ }
+ }, $.fn.select2.defaults, opts);
+
+ if (typeof(opts.id) !== "function") {
+ idKey = opts.id;
+ opts.id = function (e) { return e[idKey]; };
+ }
+
+ if (select) {
+ opts.query = this.bind(function (query) {
+ var data = { results: [], more: false },
+ term = query.term,
+ children, firstChild, process;
+
+ process=function(element, collection) {
+ var group;
+ if (element.is("option")) {
+ if (query.matcher(term, element.text(), element)) {
+ collection.push({id:element.attr("value"), text:element.text(), element: element.get(), css: element.attr("class")});
+ }
+ } else if (element.is("optgroup")) {
+ group={text:element.attr("label"), children:[], element: element.get(), css: element.attr("class")};
+ element.children().each2(function(i, elm) { process(elm, group.children); });
+ if (group.children.length>0) {
+ collection.push(group);
+ }
+ }
+ };
+
+ children=element.children();
+
+ // ignore the placeholder option if there is one
+ if (this.getPlaceholder() !== undefined && children.length > 0) {
+ firstChild = children[0];
+ if ($(firstChild).text() === "") {
+ children=children.not(firstChild);
+ }
+ }
+
+ children.each2(function(i, elm) { process(elm, data.results); });
+
+ query.callback(data);
+ });
+ // this is needed because inside val() we construct choices from options and there id is hardcoded
+ opts.id=function(e) { return e.id; };
+ opts.formatResultCssClass = function(data) { return data.css; }
+ } else {
+ if (!("query" in opts)) {
+ if ("ajax" in opts) {
+ ajaxUrl = opts.element.data("ajax-url");
+ if (ajaxUrl && ajaxUrl.length > 0) {
+ opts.ajax.url = ajaxUrl;
+ }
+ opts.query = ajax(opts.ajax);
+ } else if ("data" in opts) {
+ opts.query = local(opts.data);
+ } else if ("tags" in opts) {
+ opts.query = tags(opts.tags);
+ opts.createSearchChoice = function (term) { return {id: term, text: term}; };
+ opts.initSelection = function (element, callback) {
+ var data = [];
+ $(splitVal(element.val(), opts.separator)).each(function () {
+ var id = this, text = this, tags=opts.tags;
+ if ($.isFunction(tags)) tags=tags();
+ $(tags).each(function() { if (equal(this.id, id)) { text = this.text; return false; } });
+ data.push({id: id, text: text});
+ });
+
+ callback(data);
+ };
+ }
+ }
+ }
+ if (typeof(opts.query) !== "function") {
+ throw "query function not defined for Select2 " + opts.element.attr("id");
+ }
+
+ return opts;
+ },
+
+ /**
+ * Monitor the original element for changes and update select2 accordingly
+ */
+ // abstract
+ monitorSource: function () {
+ this.opts.element.bind("change.select2", this.bind(function (e) {
+ if (this.opts.element.data("select2-change-triggered") !== true) {
+ this.initSelection();
+ }
+ }));
+ },
+
+ /**
+ * Triggers the change event on the source element
+ */
+ // abstract
+ triggerChange: function (details) {
+
+ details = details || {};
+ details= $.extend({}, details, { type: "change", val: this.val() });
+ // prevents recursive triggering
+ this.opts.element.data("select2-change-triggered", true);
+ this.opts.element.trigger(details);
+ this.opts.element.data("select2-change-triggered", false);
+
+ // some validation frameworks ignore the change event and listen instead to keyup, click for selects
+ // so here we trigger the click event manually
+ this.opts.element.click();
+
+ // ValidationEngine ignorea the change event and listens instead to blur
+ // so here we trigger the blur event manually if so desired
+ if (this.opts.blurOnChange)
+ this.opts.element.blur();
+ },
+
+
+ // abstract
+ enable: function() {
+ if (this.enabled) return;
+
+ this.enabled=true;
+ this.container.removeClass("select2-container-disabled");
+ },
+
+ // abstract
+ disable: function() {
+ if (!this.enabled) return;
+
+ this.close();
+
+ this.enabled=false;
+ this.container.addClass("select2-container-disabled");
+ },
+
+ // abstract
+ opened: function () {
+ return this.container.hasClass("select2-dropdown-open");
+ },
+
+ // abstract
+ positionDropdown: function() {
+ var offset = this.container.offset(),
+ height = this.container.outerHeight(),
+ width = this.container.outerWidth(),
+ dropHeight = this.dropdown.outerHeight(),
+ viewportBottom = $(window).scrollTop() + document.documentElement.clientHeight,
+ dropTop = offset.top + height,
+ dropLeft = offset.left,
+ enoughRoomBelow = dropTop + dropHeight <= viewportBottom,
+ enoughRoomAbove = (offset.top - dropHeight) >= this.body().scrollTop(),
+ aboveNow = this.dropdown.hasClass("select2-drop-above"),
+ bodyOffset,
+ above,
+ css;
+
+ // console.log("below/ droptop:", dropTop, "dropHeight", dropHeight, "sum", (dropTop+dropHeight)+" viewport bottom", viewportBottom, "enough?", enoughRoomBelow);
+ // console.log("above/ offset.top", offset.top, "dropHeight", dropHeight, "top", (offset.top-dropHeight), "scrollTop", this.body().scrollTop(), "enough?", enoughRoomAbove);
+
+ // fix positioning when body has an offset and is not position: static
+
+ if (this.body().css('position') !== 'static') {
+ bodyOffset = this.body().offset();
+ d