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+/*
+ * SonarQube, open source software quality management tool.
+ * Copyright (C) 2008-2014 SonarSource
+ * mailto:contact AT sonarsource DOT com
+ *
+ * SonarQube is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or (at your option) any later version.
+ *
+ * SonarQube is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+/*
+ 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();
+ dropTop -= bodyOffset.top;
+ dropLeft -= bodyOffset.left;
+ }
+
+ // always prefer the current above/below alignment, unless there is not enough room
+
+ if (aboveNow) {
+ above = true;
+ if (!enoughRoomAbove && enoughRoomBelow) above = false;
+ } else {
+ above = false;
+ if (!enoughRoomBelow && enoughRoomAbove) above = true;
+ }
+
+ if (above) {
+ dropTop = offset.top - dropHeight;
+ this.container.addClass("select2-drop-above");
+ this.dropdown.addClass("select2-drop-above");
+ }
+ else {
+ this.container.removeClass("select2-drop-above");
+ this.dropdown.removeClass("select2-drop-above");
+ }
+
+ css = $.extend({
+ top: dropTop,
+ left: dropLeft,
+ width: width
+ }, evaluate(this.opts.dropdownCss));
+
+ this.dropdown.css(css);
+ },
+
+ // abstract
+ shouldOpen: function() {
+ var event;
+
+ if (this.opened()) return false;
+
+ event = $.Event("open");
+ this.opts.element.trigger(event);
+ return !event.isDefaultPrevented();
+ },
+
+ // abstract
+ clearDropdownAlignmentPreference: function() {
+ // clear the classes used to figure out the preference of where the dropdown should be opened
+ this.container.removeClass("select2-drop-above");
+ this.dropdown.removeClass("select2-drop-above");
+ },
+
+ /**
+ * Opens the dropdown
+ *
+ * @return {Boolean} whether or not dropdown was opened. This method will return false if, for example,
+ * the dropdown is already open, or if the 'open' event listener on the element called preventDefault().
+ */
+ // abstract
+ open: function () {
+
+ if (!this.shouldOpen()) return false;
+
+ window.setTimeout(this.bind(this.opening), 1);
+
+ return true;
+ },
+
+ /**
+ * Performs the opening of the dropdown
+ */
+ // abstract
+ opening: function() {
+ var cid = this.containerId, selector = this.containerSelector,
+ scroll = "scroll." + cid, resize = "resize." + cid;
+
+ this.container.parents().each(function() {
+ $(this).bind(scroll, function() {
+ var s2 = $(selector);
+ if (s2.length == 0) {
+ $(this).unbind(scroll);
+ }
+ s2.select2("close");
+ });
+ });
+
+ $(window).bind(resize, function() {
+ var s2 = $(selector);
+ if (s2.length == 0) {
+ $(window).unbind(resize);
+ }
+ s2.select2("close");
+ });
+
+ this.clearDropdownAlignmentPreference();
+
+ if (this.search.val() === " ") { this.search.val(""); }
+
+ this.container.addClass("select2-dropdown-open").addClass("select2-container-active");
+
+ this.updateResults(true);
+
+ if(this.dropdown[0] !== this.body().children().last()[0]) {
+ this.dropdown.detach().appendTo(this.body());
+ }
+
+ this.dropdown.show();
+
+ this.positionDropdown();
+ this.dropdown.addClass("select2-drop-active");
+
+ this.ensureHighlightVisible();
+
+ this.focusSearch();
+ },
+
+ // abstract
+ close: function () {
+ if (!this.opened()) return;
+
+ var self = this;
+
+ this.container.parents().each(function() {
+ $(this).unbind("scroll." + self.containerId);
+ });
+ $(window).unbind("resize." + this.containerId);
+
+ this.clearDropdownAlignmentPreference();
+
+ this.dropdown.hide();
+ this.container.removeClass("select2-dropdown-open").removeClass("select2-container-active");
+ this.results.empty();
+ this.clearSearch();
+
+ this.opts.element.trigger($.Event("close"));
+ },
+
+ // abstract
+ clearSearch: function () {
+
+ },
+
+ // abstract
+ ensureHighlightVisible: function () {
+ var results = this.results, children, index, child, hb, rb, y, more;
+
+ index = this.highlight();
+
+ if (index < 0) return;
+
+ if (index == 0) {
+
+ // if the first element is highlighted scroll all the way to the top,
+ // that way any unselectable headers above it will also be scrolled
+ // into view
+
+ results.scrollTop(0);
+ return;
+ }
+
+ children = results.find(".select2-result-selectable");
+
+ child = $(children[index]);
+
+ hb = child.offset().top + child.outerHeight();
+
+ // if this is the last child lets also make sure select2-more-results is visible
+ if (index === children.length - 1) {
+ more = results.find("li.select2-more-results");
+ if (more.length > 0) {
+ hb = more.offset().top + more.outerHeight();
+ }
+ }
+
+ rb = results.offset().top + results.outerHeight();
+ if (hb > rb) {
+ results.scrollTop(results.scrollTop() + (hb - rb));
+ }
+ y = child.offset().top - results.offset().top;
+
+ // make sure the top of the element is visible
+ if (y < 0) {
+ results.scrollTop(results.scrollTop() + y); // y is negative
+ }
+ },
+
+ // abstract
+ moveHighlight: function (delta) {
+ var choices = this.results.find(".select2-result-selectable"),
+ index = this.highlight();
+
+ while (index > -1 && index < choices.length) {
+ index += delta;
+ var choice = $(choices[index]);
+ if (choice.hasClass("select2-result-selectable") && !choice.hasClass("select2-disabled")) {
+ this.highlight(index);
+ break;
+ }
+ }
+ },
+
+ // abstract
+ highlight: function (index) {
+ var choices = this.results.find(".select2-result-selectable").not(".select2-disabled");
+
+ if (arguments.length === 0) {
+ return indexOf(choices.filter(".select2-highlighted")[0], choices.get());
+ }
+
+ if (index >= choices.length) index = choices.length - 1;
+ if (index < 0) index = 0;
+
+ choices.removeClass("select2-highlighted");
+
+ $(choices[index]).addClass("select2-highlighted");
+ this.ensureHighlightVisible();
+
+ },
+
+ // abstract
+ countSelectableResults: function() {
+ return this.results.find(".select2-result-selectable").not(".select2-disabled").length;
+ },
+
+ // abstract
+ highlightUnderEvent: function (event) {
+ var el = $(event.target).closest(".select2-result-selectable");
+ if (el.length > 0 && !el.is(".select2-highlighted")) {
+ var choices = this.results.find('.select2-result-selectable');
+ this.highlight(choices.index(el));
+ } else if (el.length == 0) {
+ // if we are over an unselectable item remove al highlights
+ this.results.find(".select2-highlighted").removeClass("select2-highlighted");
+ }
+ },
+
+ // abstract
+ loadMoreIfNeeded: function () {
+ var results = this.results,
+ more = results.find("li.select2-more-results"),
+ below, // pixels the element is below the scroll fold, below==0 is when the element is starting to be visible
+ offset = -1, // index of first element without data
+ page = this.resultsPage + 1,
+ self=this,
+ term=this.search.val(),
+ context=this.context;
+
+ if (more.length === 0) return;
+ below = more.offset().top - results.offset().top - results.height();
+
+ if (below <= 0) {
+ more.addClass("select2-active");
+ this.opts.query({
+ term: term,
+ page: page,
+ context: context,
+ matcher: this.opts.matcher,
+ callback: this.bind(function (data) {
+
+ // ignore a response if the select2 has been closed before it was received
+ if (!self.opened()) return;
+
+
+ self.opts.populateResults.call(this, results, data.results, {term: term, page: page, context:context});
+
+ if (data.more===true) {
+ more.detach().appendTo(results).text(self.opts.formatLoadMore(page+1));
+ window.setTimeout(function() { self.loadMoreIfNeeded(); }, 10);
+ } else {
+ more.remove();
+ }
+ self.positionDropdown();
+ self.resultsPage = page;
+ })});
+ }
+ },
+
+ /**
+ * Default tokenizer function which does nothing
+ */
+ tokenize: function() {
+
+ },
+
+ /**
+ * @param initial whether or not this is the call to this method right after the dropdown has been opened
+ */
+ // abstract
+ updateResults: function (initial) {
+ var search = this.search, results = this.results, opts = this.opts, data, self=this, input;
+
+ // if the search is currently hidden we do not alter the results
+ if (initial !== true && (this.showSearchInput === false || !this.opened())) {
+ return;
+ }
+
+ search.addClass("select2-active");
+
+ function postRender() {
+ results.scrollTop(0);
+ search.removeClass("select2-active");
+ self.positionDropdown();
+ }
+
+ function render(html) {
+ results.html(self.opts.escapeMarkup(html));
+ postRender();
+ }
+
+ if (opts.maximumSelectionSize >=1) {
+ data = this.data();
+ if ($.isArray(data) && data.length >= opts.maximumSelectionSize && checkFormatter(opts.formatSelectionTooBig, "formatSelectionTooBig")) {
+ render("<li class='select2-selection-limit'>" + opts.formatSelectionTooBig(opts.maximumSelectionSize) + "</li>");
+ return;
+ }
+ }
+
+ if (search.val().length < opts.minimumInputLength && checkFormatter(opts.formatInputTooShort, "formatInputTooShort")) {
+ render("<li class='select2-no-results'>" + opts.formatInputTooShort(search.val(), opts.minimumInputLength) + "</li>");
+ return;
+ }
+ else {
+ render("<li class='select2-searching'>" + opts.formatSearching() + "</li>");
+ }
+
+ // give the tokenizer a chance to pre-process the input
+ input = this.tokenize();
+ if (input != undefined && input != null) {
+ search.val(input);
+ }
+
+ this.resultsPage = 1;
+ opts.query({
+ term: search.val(),
+ page: this.resultsPage,
+ context: null,
+ matcher: opts.matcher,
+ callback: this.bind(function (data) {
+ var def; // default choice
+
+ // ignore a response if the select2 has been closed before it was received
+ if (!this.opened()) return;
+
+ // save context, if any
+ this.context = (data.context===undefined) ? null : data.context;
+
+ // create a default choice and prepend it to the list
+ if (this.opts.createSearchChoice && search.val() !== "") {
+ def = this.opts.createSearchChoice.call(null, search.val(), data.results);
+ if (def !== undefined && def !== null && self.id(def) !== undefined && self.id(def) !== null) {
+ if ($(data.results).filter(
+ function () {
+ return equal(self.id(this), self.id(def));
+ }).length === 0) {
+ data.results.unshift(def);
+ }
+ }
+ }
+
+ if (data.results.length === 0 && checkFormatter(opts.formatNoMatches, "formatNoMatches")) {
+ render("<li class='select2-no-results'>" + opts.formatNoMatches(search.val()) + "</li>");
+ return;
+ }
+
+ results.empty();
+ self.opts.populateResults.call(this, results, data.results, {term: search.val(), page: this.resultsPage, context:null});
+
+ if (data.more === true && checkFormatter(opts.formatLoadMore, "formatLoadMore")) {
+ results.append("<li class='select2-more-results'>" + self.opts.escapeMarkup(opts.formatLoadMore(this.resultsPage)) + "</li>");
+ window.setTimeout(function() { self.loadMoreIfNeeded(); }, 10);
+ }
+
+ this.postprocessResults(data, initial);
+
+ postRender();
+ })});
+ },
+
+ // abstract
+ cancel: function () {
+ this.close();
+ },
+
+ // abstract
+ blur: function () {
+ this.close();
+ this.container.removeClass("select2-container-active");
+ this.dropdown.removeClass("select2-drop-active");
+ // synonymous to .is(':focus'), which is available in jquery >= 1.6
+ if (this.search[0] === document.activeElement) { this.search.blur(); }
+ this.clearSearch();
+ this.selection.find(".select2-search-choice-focus").removeClass("select2-search-choice-focus");
+ },
+
+ // abstract
+ focusSearch: function () {
+ // need to do it here as well as in timeout so it works in IE
+ this.search.show();
+ this.search.focus();
+
+ /* we do this in a timeout so that current event processing can complete before this code is executed.
+ this makes sure the search field is focussed even if the current event would blur it */
+ window.setTimeout(this.bind(function () {
+ // reset the value so IE places the cursor at the end of the input box
+ this.search.show();
+ this.search.focus();
+ this.search.val(this.search.val());
+ }), 10);
+ },
+
+ // abstract
+ selectHighlighted: function () {
+ var index=this.highlight(),
+ highlighted=this.results.find(".select2-highlighted").not(".select2-disabled"),
+ data = highlighted.closest('.select2-result-selectable').data("select2-data");
+ if (data) {
+ highlighted.addClass("select2-disabled");
+ this.highlight(index);
+ this.onSelect(data);
+ }
+ },
+
+ // abstract
+ getPlaceholder: function () {
+ return this.opts.element.attr("placeholder") ||
+ this.opts.element.attr("data-placeholder") || // jquery 1.4 compat
+ this.opts.element.data("placeholder") ||
+ this.opts.placeholder;
+ },
+
+ /**
+ * Get the desired width for the container element. This is
+ * derived first from option `width` passed to select2, then
+ * the inline 'style' on the original element, and finally
+ * falls back to the jQuery calculated element width.
+ */
+ // abstract
+ initContainerWidth: function () {
+ function resolveContainerWidth() {
+ var style, attrs, matches, i, l;
+
+ if (this.opts.width === "off") {
+ return null;
+ } else if (this.opts.width === "element"){
+ return this.opts.element.outerWidth() === 0 ? 'auto' : this.opts.element.outerWidth() + 'px';
+ } else if (this.opts.width === "copy" || this.opts.width === "resolve") {
+ // check if there is inline style on the element that contains width
+ style = this.opts.element.attr('style');
+ if (style !== undefined) {
+ attrs = style.split(';');
+ for (i = 0, l = attrs.length; i < l; i = i + 1) {
+ matches = attrs[i].replace(/\s/g, '')
+ .match(/width:(([-+]?([0-9]*\.)?[0-9]+)(px|em|ex|%|in|cm|mm|pt|pc))/);
+ if (matches !== null && matches.length >= 1)
+ return matches[1];
+ }
+ }
+
+ if (this.opts.width === "resolve") {
+ // next check if css('width') can resolve a width that is percent based, this is sometimes possible
+ // when attached to input type=hidden or elements hidden via css
+ style = this.opts.element.css('width');
+ if (style.indexOf("%") > 0) return style;
+
+ // finally, fallback on the calculated width of the element
+ return (this.opts.element.outerWidth() === 0 ? 'auto' : this.opts.element.outerWidth() + 'px');
+ }
+
+ return null;
+ } else if ($.isFunction(this.opts.width)) {
+ return this.opts.width();
+ } else {
+ return this.opts.width;
+ }
+ };
+
+ var width = resolveContainerWidth.call(this);
+ if (width !== null) {
+ this.container.attr("style", "width: "+width);
+ }
+ }
+ });
+
+ SingleSelect2 = clazz(AbstractSelect2, {
+
+ // single
+
+ createContainer: function () {
+ var container = $("<div></div>", {
+ "class": "select2-container"
+ }).html([
+ " <a href='#' onclick='return false;' class='select2-choice'>",
+ " <span></span><abbr class='select2-search-choice-close' style='display:none;'></abbr>",
+ " <div><b></b></div>" ,
+ "</a>",
+ " <div class='select2-drop select2-offscreen'>" ,
+ " <div class='select2-search'>" ,
+ " <input type='text' autocomplete='off' class='select2-input'/>" ,
+ " </div>" ,
+ " <ul class='select2-results'>" ,
+ " </ul>" ,
+ "</div>"].join(""));
+ return container;
+ },
+
+ // single
+ opening: function () {
+ this.search.show();
+ this.parent.opening.apply(this, arguments);
+ this.dropdown.removeClass("select2-offscreen");
+ },
+
+ // single
+ close: function () {
+ if (!this.opened()) return;
+ this.parent.close.apply(this, arguments);
+ this.dropdown.removeAttr("style").addClass("select2-offscreen").insertAfter(this.selection).show();
+ },
+
+ // single
+ focus: function () {
+ this.close();
+ this.selection.focus();
+ },
+
+ // single
+ isFocused: function () {
+ return this.selection[0] === document.activeElement;
+ },
+
+ // single
+ cancel: function () {
+ this.parent.cancel.apply(this, arguments);
+ this.selection.focus();
+ },
+
+ // single
+ initContainer: function () {
+
+ var selection,
+ container = this.container,
+ dropdown = this.dropdown,
+ clickingInside = false;
+
+ this.selection = selection = container.find(".select2-choice");
+
+ this.search.bind("keydown", this.bind(function (e) {
+ if (!this.enabled) return;
+
+ if (e.which === KEY.PAGE_UP || e.which === KEY.PAGE_DOWN) {
+ // prevent the page from scrolling
+ killEvent(e);
+ return;
+ }
+
+ if (this.opened()) {
+ switch (e.which) {
+ case KEY.UP:
+ case KEY.DOWN:
+ this.moveHighlight((e.which === KEY.UP) ? -1 : 1);
+ killEvent(e);
+ return;
+ case KEY.TAB:
+ case KEY.ENTER:
+ this.selectHighlighted();
+ killEvent(e);
+ return;
+ case KEY.ESC:
+ this.cancel(e);
+ killEvent(e);
+ return;
+ }
+ } else {
+
+ if (e.which === KEY.TAB || KEY.isControl(e) || KEY.isFunctionKey(e) || e.which === KEY.ESC) {
+ return;
+ }
+
+ if (this.opts.openOnEnter === false && e.which === KEY.ENTER) {
+ return;
+ }
+
+ this.open();
+
+ if (e.which === KEY.ENTER) {
+ // do not propagate the event otherwise we open, and propagate enter which closes
+ return;
+ }
+ }
+ }));
+
+ this.search.bind("focus", this.bind(function() {
+ this.selection.attr("tabIndex", "-1");
+ }));
+ this.search.bind("blur", this.bind(function() {
+ if (!this.opened()) this.container.removeClass("select2-container-active");
+ window.setTimeout(this.bind(function() { this.selection.attr("tabIndex", this.opts.element.attr("tabIndex")); }), 10);
+ }));
+
+ selection.bind("mousedown", this.bind(function (e) {
+ clickingInside = true;
+
+ if (this.opened()) {
+ this.close();
+ this.selection.focus();
+ } else if (this.enabled) {
+ this.open();
+ }
+
+ clickingInside = false;
+ }));
+
+ dropdown.bind("mousedown", this.bind(function() { this.search.focus(); }));
+
+ selection.bind("focus", this.bind(function() {
+ this.container.addClass("select2-container-active");
+ // hide the search so the tab key does not focus on it
+ this.search.attr("tabIndex", "-1");
+ }));
+
+ selection.bind("blur", this.bind(function() {
+ if (!this.opened()) {
+ this.container.removeClass("select2-container-active");
+ }
+ window.setTimeout(this.bind(function() { this.search.attr("tabIndex", this.opts.element.attr("tabIndex")); }), 10);
+ }));
+
+ selection.bind("keydown", this.bind(function(e) {
+ if (!this.enabled) return;
+
+ if (e.which === KEY.PAGE_UP || e.which === KEY.PAGE_DOWN) {
+ // prevent the page from scrolling
+ killEvent(e);
+ return;
+ }
+
+ if (e.which === KEY.TAB || KEY.isControl(e) || KEY.isFunctionKey(e)
+ || e.which === KEY.ESC) {
+ return;
+ }
+
+ if (this.opts.openOnEnter === false && e.which === KEY.ENTER) {
+ return;
+ }
+
+ if (e.which == KEY.DELETE) {
+ if (this.opts.allowClear) {
+ this.clear();
+ }
+ return;
+ }
+
+ this.open();
+
+ if (e.which === KEY.ENTER) {
+ // do not propagate the event otherwise we open, and propagate enter which closes
+ killEvent(e);
+ return;
+ }
+
+ // do not set the search input value for non-alpha-numeric keys
+ // otherwise pressing down results in a '(' being set in the search field
+ if (e.which < 48 ) { // '0' == 48
+ killEvent(e);
+ return;
+ }
+
+ var keyWritten = String.fromCharCode(e.which).toLowerCase();
+
+ if (e.shiftKey) {
+ keyWritten = keyWritten.toUpperCase();
+ }
+
+ // focus the field before calling val so the cursor ends up after the value instead of before
+ this.search.focus();
+ this.search.val(keyWritten);
+
+ // prevent event propagation so it doesnt replay on the now focussed search field and result in double key entry
+ killEvent(e);
+ }));
+
+ selection.delegate("abbr", "mousedown", this.bind(function (e) {
+ if (!this.enabled) return;
+ this.clear();
+ killEvent(e);
+ this.close();
+ this.triggerChange();
+ this.selection.focus();
+ }));
+
+ this.setPlaceholder();
+
+ this.search.bind("focus", this.bind(function() {
+ this.container.addClass("select2-container-active");
+ }));
+ },
+
+ // single
+ clear: function() {
+ this.opts.element.val("");
+ this.selection.find("span").empty();
+ this.selection.removeData("select2-data");
+ this.setPlaceholder();
+ },
+
+ /**
+ * Sets selection based on source element's value
+ */
+ // single
+ initSelection: function () {
+ var selected;
+ if (this.opts.element.val() === "") {
+ this.close();
+ this.setPlaceholder();
+ } else {
+ var self = this;
+ this.opts.initSelection.call(null, this.opts.element, function(selected){
+ if (selected !== undefined && selected !== null) {
+ self.updateSelection(selected);
+ self.close();
+ self.setPlaceholder();
+ }
+ });
+ }
+ },
+
+ // single
+ prepareOpts: function () {
+ var opts = this.parent.prepareOpts.apply(this, arguments);
+
+ if (opts.element.get(0).tagName.toLowerCase() === "select") {
+ // install the selection initializer
+ opts.initSelection = function (element, callback) {
+ var selected = element.find(":selected");
+ // a single select box always has a value, no need to null check 'selected'
+ if ($.isFunction(callback))
+ callback({id: selected.attr("value"), text: selected.text()});
+ };
+ }
+
+ return opts;
+ },
+
+ // single
+ setPlaceholder: function () {
+ var placeholder = this.getPlaceholder();
+
+ if (this.opts.element.val() === "" && placeholder !== undefined) {
+
+ // check for a first blank option if attached to a select
+ if (this.select && this.select.find("option:first").text() !== "") return;
+
+ this.selection.find("span").html(this.opts.escapeMarkup(placeholder));
+
+ this.selection.addClass("select2-default");
+
+ this.selection.find("abbr").hide();
+ }
+ },
+
+ // single
+ postprocessResults: function (data, initial) {
+ var selected = 0, self = this, showSearchInput = true;
+
+ // find the selected element in the result list
+
+ this.results.find(".select2-result-selectable").each2(function (i, elm) {
+ if (equal(self.id(elm.data("select2-data")), self.opts.element.val())) {
+ selected = i;
+ return false;
+ }
+ });
+
+ // and highlight it
+
+ this.highlight(selected);
+
+ // hide the search box if this is the first we got the results and there are a few of them
+
+ if (initial === true) {
+ showSearchInput = this.showSearchInput = countResults(data.results) >= this.opts.minimumResultsForSearch;
+ this.dropdown.find(".select2-search")[showSearchInput ? "removeClass" : "addClass"]("select2-search-hidden");
+
+ //add "select2-with-searchbox" to the container if search box is shown
+ $(this.dropdown, this.container)[showSearchInput ? "addClass" : "removeClass"]("select2-with-searchbox");
+ }
+
+ },
+
+ // single
+ onSelect: function (data) {
+ var old = this.opts.element.val();
+
+ this.opts.element.val(this.id(data));
+ this.updateSelection(data);
+ this.close();
+ this.selection.focus();
+
+ if (!equal(old, this.id(data))) { this.triggerChange(); }
+ },
+
+ // single
+ updateSelection: function (data) {
+
+ var container=this.selection.find("span"), formatted;
+
+ this.selection.data("select2-data", data);
+
+ container.empty();
+ formatted=this.opts.formatSelection(data, container);
+ if (formatted !== undefined) {
+ container.append(this.opts.escapeMarkup(formatted));
+ }
+
+ this.selection.removeClass("select2-default");
+
+ if (this.opts.allowClear && this.getPlaceholder() !== undefined) {
+ this.selection.find("abbr").show();
+ }
+ },
+
+ // single
+ val: function () {
+ var val, data = null, self = this;
+
+ if (arguments.length === 0) {
+ return this.opts.element.val();
+ }
+
+ val = arguments[0];
+
+ if (this.select) {
+ this.select
+ .val(val)
+ .find(":selected").each2(function (i, elm) {
+ data = {id: elm.attr("value"), text: elm.text()};
+ return false;
+ });
+ this.updateSelection(data);
+ this.setPlaceholder();
+ } else {
+ if (this.opts.initSelection === undefined) {
+ throw new Error("cannot call val() if initSelection() is not defined");
+ }
+ // val is an id. !val is true for [undefined,null,'']
+ if (!val) {
+ this.clear();
+ return;
+ }
+ this.opts.element.val(val);
+ this.opts.initSelection(this.opts.element, function(data){
+ self.opts.element.val(!data ? "" : self.id(data));
+ self.updateSelection(data);
+ self.setPlaceholder();
+ });
+ }
+ },
+
+ // single
+ clearSearch: function () {
+ this.search.val("");
+ },
+
+ // single
+ data: function(value) {
+ var data;
+
+ if (arguments.length === 0) {
+ data = this.selection.data("select2-data");
+ if (data == undefined) data = null;
+ return data;
+ } else {
+ if (!value || value === "") {
+ this.clear();
+ } else {
+ this.opts.element.val(!value ? "" : this.id(value));
+ this.updateSelection(value);
+ }
+ }
+ }
+ });
+
+ MultiSelect2 = clazz(AbstractSelect2, {
+
+ // multi
+ createContainer: function () {
+ var container = $("<div></div>", {
+ "class": "select2-container select2-container-multi"
+ }).html([
+ " <ul class='select2-choices'>",
+ //"<li class='select2-search-choice'><span>California</span><a href="javascript:void(0)" class="select2-search-choice-close"></a></li>" ,
+ " <li class='select2-search-field'>" ,
+ " <input type='text' autocomplete='off' class='select2-input'>" ,
+ " </li>" ,
+ "</ul>" ,
+ "<div class='select2-drop select2-drop-multi' style='display:none;'>" ,
+ " <ul class='select2-results'>" ,
+ " </ul>" ,
+ "</div>"].join(""));
+ return container;
+ },
+
+ // multi
+ prepareOpts: function () {
+ var opts = this.parent.prepareOpts.apply(this, arguments);
+
+ // TODO validate placeholder is a string if specified
+
+ if (opts.element.get(0).tagName.toLowerCase() === "select") {
+ // install sthe selection initializer
+ opts.initSelection = function (element,callback) {
+
+ var data = [];
+ element.find(":selected").each2(function (i, elm) {
+ data.push({id: elm.attr("value"), text: elm.text()});
+ });
+
+ if ($.isFunction(callback))
+ callback(data);
+ };
+ }
+
+ return opts;
+ },
+
+ // multi
+ initContainer: function () {
+
+ var selector = ".select2-choices", selection;
+
+ this.searchContainer = this.container.find(".select2-search-field");
+ this.selection = selection = this.container.find(selector);
+
+ this.search.bind("keydown", this.bind(function (e) {
+ if (!this.enabled) return;
+
+ if (e.which === KEY.BACKSPACE && this.search.val() === "") {
+ this.close();
+
+ var choices,
+ selected = selection.find(".select2-search-choice-focus");
+ if (selected.length > 0) {
+ this.unselect(selected.first());
+ this.search.width(10);
+ killEvent(e);
+ return;
+ }
+
+ choices = selection.find(".select2-search-choice");
+ if (choices.length > 0) {
+ choices.last().addClass("select2-search-choice-focus");
+ }
+ } else {
+ selection.find(".select2-search-choice-focus").removeClass("select2-search-choice-focus");
+ }
+
+ if (this.opened()) {
+ switch (e.which) {
+ case KEY.UP:
+ case KEY.DOWN:
+ this.moveHighlight((e.which === KEY.UP) ? -1 : 1);
+ killEvent(e);
+ return;
+ case KEY.ENTER:
+ case KEY.TAB:
+ this.selectHighlighted();
+ killEvent(e);
+ return;
+ case KEY.ESC:
+ this.cancel(e);
+ killEvent(e);
+ return;
+ }
+ }
+
+ if (e.which === KEY.TAB || KEY.isControl(e) || KEY.isFunctionKey(e)
+ || e.which === KEY.BACKSPACE || e.which === KEY.ESC) {
+ return;
+ }
+
+ if (this.opts.openOnEnter === false && e.which === KEY.ENTER) {
+ return;
+ }
+
+ this.open();
+
+ if (e.which === KEY.PAGE_UP || e.which === KEY.PAGE_DOWN) {
+ // prevent the page from scrolling
+ killEvent(e);
+ }
+ }));
+
+ this.search.bind("keyup", this.bind(this.resizeSearch));
+
+ this.search.bind("blur", this.bind(function(e) {
+ this.container.removeClass("select2-container-active");
+ this.search.removeClass("select2-focused");
+ this.clearSearch();
+ e.stopImmediatePropagation();
+ }));
+
+ this.container.delegate(selector, "mousedown", this.bind(function (e) {
+ if (!this.enabled) return;
+ if ($(e.target).closest(".select2-search-choice").length > 0) {
+ // clicked inside a select2 search choice, do not open
+ return;
+ }
+ this.clearPlaceholder();
+ this.open();
+ this.focusSearch();
+ e.preventDefault();
+ }));
+
+ this.container.delegate(selector, "focus", this.bind(function () {
+ if (!this.enabled) return;
+ this.container.addClass("select2-container-active");
+ this.dropdown.addClass("select2-drop-active");
+ this.clearPlaceholder();
+ }));
+
+ // set the placeholder if necessary
+ this.clearSearch();
+ },
+
+ // multi
+ enable: function() {
+ if (this.enabled) return;
+
+ this.parent.enable.apply(this, arguments);
+
+ this.search.removeAttr("disabled");
+ },
+
+ // multi
+ disable: function() {
+ if (!this.enabled) return;
+
+ this.parent.disable.apply(this, arguments);
+
+ this.search.attr("disabled", true);
+ },
+
+ // multi
+ initSelection: function () {
+ var data;
+ if (this.opts.element.val() === "") {
+ this.updateSelection([]);
+ this.close();
+ // set the placeholder if necessary
+ this.clearSearch();
+ }
+ if (this.select || this.opts.element.val() !== "") {
+ var self = this;
+ this.opts.initSelection.call(null, this.opts.element, function(data){
+ if (data !== undefined && data !== null) {
+ self.updateSelection(data);
+ self.close();
+ // set the placeholder if necessary
+ self.clearSearch();
+ }
+ });
+ }
+ },
+
+ // multi
+ clearSearch: function () {
+ var placeholder = this.getPlaceholder();
+
+ if (placeholder !== undefined && this.getVal().length === 0 && this.search.hasClass("select2-focused") === false) {
+ this.search.val(placeholder).addClass("select2-default");
+ // stretch the search box to full width of the container so as much of the placeholder is visible as possible
+ this.resizeSearch();
+ } else {
+ // we set this to " " instead of "" and later clear it on focus() because there is a firefox bug
+ // that does not properly render the caret when the field starts out blank
+ this.search.val(" ").width(10);
+ }
+ },
+
+ // multi
+ clearPlaceholder: function () {
+ if (this.search.hasClass("select2-default")) {
+ this.search.val("").removeClass("select2-default");
+ } else {
+ // work around for the space character we set to avoid firefox caret bug
+ if (this.search.val() === " ") this.search.val("");
+ }
+ },
+
+ // multi
+ opening: function () {
+ this.parent.opening.apply(this, arguments);
+
+ this.clearPlaceholder();
+ this.resizeSearch();
+ this.focusSearch();
+ },
+
+ // multi
+ close: function () {
+ if (!this.opened()) return;
+ this.parent.close.apply(this, arguments);
+ },
+
+ // multi
+ focus: function () {
+ this.close();
+ this.search.focus();
+ },
+
+ // multi
+ isFocused: function () {
+ return this.search.hasClass("select2-focused");
+ },
+
+ // multi
+ updateSelection: function (data) {
+ var ids = [], filtered = [], self = this;
+
+ // filter out duplicates
+ $(data).each(function () {
+ if (indexOf(self.id(this), ids) < 0) {
+ ids.push(self.id(this));
+ filtered.push(this);
+ }
+ });
+ data = filtered;
+
+ this.selection.find(".select2-search-choice").remove();
+ $(data).each(function () {
+ self.addSelectedChoice(this);
+ });
+ self.postprocessResults();
+ },
+
+ tokenize: function() {
+ var input = this.search.val();
+ input = this.opts.tokenizer(input, this.data(), this.bind(this.onSelect), this.opts);
+ if (input != null && input != undefined) {
+ this.search.val(input);
+ if (input.length > 0) {
+ this.open();
+ }
+ }
+
+ },
+
+ // multi
+ onSelect: function (data) {
+ this.addSelectedChoice(data);
+ if (this.select) { this.postprocessResults(); }
+
+ if (this.opts.closeOnSelect) {
+ this.close();
+ this.search.width(10);
+ } else {
+ if (this.countSelectableResults()>0) {
+ this.search.width(10);
+ this.resizeSearch();
+ this.positionDropdown();
+ } else {
+ // if nothing left to select close
+ this.close();
+ }
+ }
+
+ // since its not possible to select an element that has already been
+ // added we do not need to check if this is a new element before firing change
+ this.triggerChange({ added: data });
+
+ this.focusSearch();
+ },
+
+ // multi
+ cancel: function () {
+ this.close();
+ this.focusSearch();
+ },
+
+ // multi
+ addSelectedChoice: function (data) {
+ var choice=$(
+ "<li class='select2-search-choice'>" +
+ " <div></div>" +
+ " <a href='#' onclick='return false;' class='select2-search-choice-close' tabindex='-1'></a>" +
+ "</li>"),
+ id = this.id(data),
+ val = this.getVal(),
+ formatted;
+
+ formatted=this.opts.formatSelection(data, choice);
+ choice.find("div").replaceWith("<div>"+this.opts.escapeMarkup(formatted)+"</div>");
+ choice.find(".select2-search-choice-close")
+ .bind("mousedown", killEvent)
+ .bind("click dblclick", this.bind(function (e) {
+ if (!this.enabled) return;
+
+ $(e.target).closest(".select2-search-choice").fadeOut('fast', this.bind(function(){
+ this.unselect($(e.target));
+ this.selection.find(".select2-search-choice-focus").removeClass("select2-search-choice-focus");
+ this.close();
+ this.focusSearch();
+ })).dequeue();
+ killEvent(e);
+ })).bind("focus", this.bind(function () {
+ if (!this.enabled) return;
+ this.container.addClass("select2-container-active");
+ this.dropdown.addClass("select2-drop-active");
+ }));
+
+ choice.data("select2-data", data);
+ choice.insertBefore(this.searchContainer);
+
+ val.push(id);
+ this.setVal(val);
+ },
+
+ // multi
+ unselect: function (selected) {
+ var val = this.getVal(),
+ data,
+ index;
+
+ selected = selected.closest(".select2-search-choice");
+
+ if (selected.length === 0) {
+ throw "Invalid argument: " + selected + ". Must be .select2-search-choice";
+ }
+
+ data = selected.data("select2-data");
+
+ index = indexOf(this.id(data), val);
+
+ if (index >= 0) {
+ val.splice(index, 1);
+ this.setVal(val);
+ if (this.select) this.postprocessResults();
+ }
+ selected.remove();
+ this.triggerChange({ removed: data });
+ },
+
+ // multi
+ postprocessResults: function () {
+ var val = this.getVal(),
+ choices = this.results.find(".select2-result-selectable"),
+ compound = this.results.find(".select2-result-with-children"),
+ self = this;
+
+ choices.each2(function (i, choice) {
+ var id = self.id(choice.data("select2-data"));
+ if (indexOf(id, val) >= 0) {
+ choice.addClass("select2-disabled").removeClass("select2-result-selectable");
+ } else {
+ choice.removeClass("select2-disabled").addClass("select2-result-selectable");
+ }
+ });
+
+ compound.each2(function(i, e) {
+ if (e.find(".select2-result-selectable").length==0) {
+ e.addClass("select2-disabled");
+ } else {
+ e.removeClass("select2-disabled");
+ }
+ });
+
+ choices.each2(function (i, choice) {
+ if (!choice.hasClass("select2-disabled") && choice.hasClass("select2-result-selectable")) {
+ self.highlight(0);
+ return false;
+ }
+ });
+
+ },
+
+ // multi
+ resizeSearch: function () {
+
+ var minimumWidth, left, maxWidth, containerLeft, searchWidth,
+ sideBorderPadding = getSideBorderPadding(this.search);
+
+ minimumWidth = measureTextWidth(this.search) + 10;
+
+ left = this.search.offset().left;
+
+ maxWidth = this.selection.width();
+ containerLeft = this.selection.offset().left;
+
+ searchWidth = maxWidth - (left - containerLeft) - sideBorderPadding;
+ if (searchWidth < minimumWidth) {
+ searchWidth = maxWidth - sideBorderPadding;
+ }
+
+ if (searchWidth < 40) {
+ searchWidth = maxWidth - sideBorderPadding;
+ }
+ this.search.width(searchWidth);
+ },
+
+ // multi
+ getVal: function () {
+ var val;
+ if (this.select) {
+ val = this.select.val();
+ return val === null ? [] : val;
+ } else {
+ val = this.opts.element.val();
+ return splitVal(val, this.opts.separator);
+ }
+ },
+
+ // multi
+ setVal: function (val) {
+ var unique;
+ if (this.select) {
+ this.select.val(val);
+ } else {
+ unique = [];
+ // filter out duplicates
+ $(val).each(function () {
+ if (indexOf(this, unique) < 0) unique.push(this);
+ });
+ this.opts.element.val(unique.length === 0 ? "" : unique.join(this.opts.separator));
+ }
+ },
+
+ // multi
+ val: function () {
+ var val, data = [], self=this;
+
+ if (arguments.length === 0) {
+ return this.getVal();
+ }
+
+ val = arguments[0];
+
+ if (!val) {
+ this.opts.element.val("");
+ this.updateSelection([]);
+ this.clearSearch();
+ return;
+ }
+
+ // val is a list of ids
+ this.setVal(val);
+
+ if (this.select) {
+ this.select.find(":selected").each(function () {
+ data.push({id: $(this).attr("value"), text: $(this).text()});
+ });
+ this.updateSelection(data);
+ } else {
+ if (this.opts.initSelection === undefined) {
+ throw new Error("val() cannot be called if initSelection() is not defined")
+ }
+
+ this.opts.initSelection(this.opts.element, function(data){
+ var ids=$(data).map(self.id);
+ self.setVal(ids);
+ self.updateSelection(data);
+ self.clearSearch();
+ });
+ }
+ this.clearSearch();
+ },
+
+ // multi
+ onSortStart: function() {
+ if (this.select) {
+ throw new Error("Sorting of elements is not supported when attached to <select>. Attach to <input type='hidden'/> instead.");
+ }
+
+ // collapse search field into 0 width so its container can be collapsed as well
+ this.search.width(0);
+ // hide the container
+ this.searchContainer.hide();
+ },
+
+ // multi
+ onSortEnd:function() {
+
+ var val=[], self=this;
+
+ // show search and move it to the end of the list
+ this.searchContainer.show();
+ // make sure the search container is the last item in the list
+ this.searchContainer.appendTo(this.searchContainer.parent());
+ // since we collapsed the width in dragStarted, we resize it here
+ this.resizeSearch();
+
+ // update selection
+
+ this.selection.find(".select2-search-choice").each(function() {
+ val.push(self.opts.id($(this).data("select2-data")));
+ });
+ this.setVal(val);
+ this.triggerChange();
+ },
+
+ // multi
+ data: function(values) {
+ var self=this, ids;
+ if (arguments.length === 0) {
+ return this.selection
+ .find(".select2-search-choice")
+ .map(function() { return $(this).data("select2-data"); })
+ .get();
+ } else {
+ if (!values) { values = []; }
+ ids = $.map(values, function(e) { return self.opts.id(e)});
+ this.setVal(ids);
+ this.updateSelection(values);
+ this.clearSearch();
+ }
+ }
+ });
+
+ $.fn.select2 = function () {
+
+ var args = Array.prototype.slice.call(arguments, 0),
+ opts,
+ select2,
+ value, multiple, allowedMethods = ["val", "destroy", "opened", "open", "close", "focus", "isFocused", "container", "onSortStart", "onSortEnd", "enable", "disable", "positionDropdown", "data"];
+
+ this.each(function () {
+ if (args.length === 0 || typeof(args[0]) === "object") {
+ opts = args.length === 0 ? {} : $.extend({}, args[0]);
+ opts.element = $(this);
+
+ if (opts.element.get(0).tagName.toLowerCase() === "select") {
+ multiple = opts.element.attr("multiple");
+ } else {
+ multiple = opts.multiple || false;
+ if ("tags" in opts) {opts.multiple = multiple = true;}
+ }
+
+ select2 = multiple ? new MultiSelect2() : new SingleSelect2();
+ select2.init(opts);
+ } else if (typeof(args[0]) === "string") {
+
+ if (indexOf(args[0], allowedMethods) < 0) {
+ throw "Unknown method: " + args[0];
+ }
+
+ value = undefined;
+ select2 = $(this).data("select2");
+ if (select2 === undefined) return;
+ if (args[0] === "container") {
+ value=select2.container;
+ } else {
+ value = select2[args[0]].apply(select2, args.slice(1));
+ }
+ if (value !== undefined) {return false;}
+ } else {
+ throw "Invalid arguments to select2 plugin: " + args;
+ }
+ });
+ return (value === undefined) ? this : value;
+ };
+
+ // plugin defaults, accessible to users
+ $.fn.select2.defaults = {
+ width: "copy",
+ closeOnSelect: true,
+ openOnEnter: true,
+ containerCss: {},
+ dropdownCss: {},
+ containerCssClass: "",
+ dropdownCssClass: "",
+ formatResult: function(result, container, query) {
+ var markup=[];
+ markMatch(result.text, query.term, markup);
+ return markup.join("");
+ },
+ formatSelection: function (data, container) {
+ return data ? data.text : undefined;
+ },
+ formatResultCssClass: function(data) {return undefined;},
+ formatNoMatches: function () { return "No matches found"; },
+ formatInputTooShort: function (input, min) { return "Please enter " + (min - input.length) + " more characters"; },
+ formatSelectionTooBig: function (limit) { return "You can only select " + limit + " item" + (limit == 1 ? "" : "s"); },
+ formatLoadMore: function (pageNumber) { return "Loading more results..."; },
+ formatSearching: function () { return "Searching..."; },
+ minimumResultsForSearch: 0,
+ minimumInputLength: 0,
+ maximumSelectionSize: 0,
+ id: function (e) { return e.id; },
+ matcher: function(term, text) {
+ return text.toUpperCase().indexOf(term.toUpperCase()) >= 0;
+ },
+ separator: ",",
+ tokenSeparators: [],
+ tokenizer: defaultTokenizer,
+ escapeMarkup: function (markup) {
+ if (markup && typeof(markup) === "string") {
+ return markup.replace(/&/g, "&amp;");
+ }
+ return markup;
+ },
+ blurOnChange: false
+ };
+
+ // exports
+ window.Select2 = {
+ query: {
+ ajax: ajax,
+ local: local,
+ tags: tags
+ }, util: {
+ debounce: debounce,
+ markMatch: markMatch
+ }, "class": {
+ "abstract": AbstractSelect2,
+ "single": SingleSelect2,
+ "multi": MultiSelect2
+ }
+ };
+
+}(jQuery));