Mercurial > repos > adam-novak > hexagram
diff hexagram-6ae12361157c/hexagram/select2.js @ 0:1407e3634bcf draft default tip
Uploaded r11 from test tool shed.
| author | adam-novak |
|---|---|
| date | Tue, 22 Oct 2013 14:17:59 -0400 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/hexagram-6ae12361157c/hexagram/select2.js Tue Oct 22 14:17:59 2013 -0400 @@ -0,0 +1,3054 @@ +/* +Copyright 2012 Igor Vaynberg + +Version: 3.4.0 Timestamp: Tue May 14 08:27:33 PDT 2013 + +This software is licensed under the Apache License, Version 2.0 (the "Apache License") or the GNU +General Public License version 2 (the "GPL License"). You may choose either license to govern your +use of this software only upon the condition that you accept all of the terms of either the Apache +License or the GPL License. + +You may obtain a copy of the Apache License and the GPL License at: + + http://www.apache.org/licenses/LICENSE-2.0 + http://www.gnu.org/licenses/gpl-2.0.html + +Unless required by applicable law or agreed to in writing, software distributed under the +Apache License or the GPL Licesnse is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR +CONDITIONS OF ANY KIND, either express or implied. See the Apache License and the GPL License for +the specific language governing permissions and limitations under the Apache License and the GPL 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, + lastMousePosition, $document, scrollBarDimensions, + + 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; + } + }, + MEASURE_SCROLLBAR_TEMPLATE = "<div class='select2-measure-scrollbar'></div>"; + + $document = $(document); + + nextUid=(function() { var counter=1; return function() { return counter++; }; }()); + + function indexOf(value, array) { + var i = 0, l = array.length; + for (; i < l; i = i + 1) { + if (equal(value, array[i])) return i; + } + return -1; + } + + function measureScrollbar () { + var $template = $( MEASURE_SCROLLBAR_TEMPLATE ); + $template.appendTo('body'); + + var dim = { + width: $template.width() - $template[0].clientWidth, + height: $template.height() - $template[0].clientHeight + }; + $template.remove(); + + return dim; + } + + /** + * Compares equality of a and b + * @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+'' === b+''; // IE requires a+'' instead of just a + if (b.constructor === String) return b+'' === a+''; // IE requires b+'' instead of just b + 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] = $.trim(val[i]); + return val; + } + + function getSideBorderPadding(element) { + return element.outerWidth(false) - element.width(); + } + + function installKeyUpChangeEvent(element) { + var key="keyup-change-value"; + element.on("keydown", function () { + if ($.data(element, key) === undefined) { + $.data(element, key, element.val()); + } + }); + element.on("keyup", function () { + var val= $.data(element, key); + if (val !== undefined && element.val() !== val) { + $.removeData(element, key); + element.trigger("keyup-change"); + } + }); + } + + $document.on("mousemove", function (e) { + lastMousePosition = {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.on("mousemove", function (e) { + var lastpos = lastMousePosition; + if (lastpos === undefined || lastpos.x !== e.pageX || lastpos.y !== e.pageY) { + $(e.target).trigger("mousemove-filtered", e); + } + }); + } + + /** + * Debounces a function. Returns a function that calls the original fn function only if no invocations have been made + * within the last quietMillis milliseconds. + * + * @param quietMillis number of milliseconds to wait before invoking fn + * @param fn function to be debounced + * @param ctx object to be used as this reference within fn + * @return debounced version of fn + */ + function debounce(quietMillis, fn, ctx) { + ctx = ctx || undefined; + var timeout; + return function () { + var args = arguments; + window.clearTimeout(timeout); + timeout = window.setTimeout(function() { + fn.apply(ctx, args); + }, quietMillis); + }; + } + + /** + * A simple implementation of a thunk + * @param formula function used to lazily initialize the thunk + * @return {Function} + */ + function thunk(formula) { + var evaluated = false, + value; + return function() { + if (evaluated === false) { value = formula(); evaluated = true; } + return value; + }; + }; + + function installDebouncedScroll(threshold, element) { + var notify = debounce(threshold, function (e) { element.trigger("scroll-debounced", e);}); + element.on("scroll", function (e) { + if (indexOf(e.target, element.get()) >= 0) notify(e); + }); + } + + function focus($el) { + if ($el[0] === document.activeElement) return; + + /* set the focus in a 0 timeout - that way the focus is set after the processing + of the current event has finished - which seems like the only reliable way + to set focus */ + window.setTimeout(function() { + var el=$el[0], pos=$el.val().length, range; + + $el.focus(); + + /* make sure el received focus so we do not error out when trying to manipulate the caret. + sometimes modals or others listeners may steal it after its set */ + if ($el.is(":visible") && el === document.activeElement) { + + /* after the focus is set move the caret to the end, necessary when we val() + just before setting focus */ + if(el.setSelectionRange) + { + el.setSelectionRange(pos, pos); + } + else if (el.createTextRange) { + range = el.createTextRange(); + range.collapse(false); + range.select(); + } + } + }, 0); + } + + function getCursorInfo(el) { + el = $(el)[0]; + var offset = 0; + var length = 0; + if ('selectionStart' in el) { + offset = el.selectionStart; + length = el.selectionEnd - offset; + } else if ('selection' in document) { + el.focus(); + var sel = document.selection.createRange(); + length = document.selection.createRange().text.length; + sel.moveStart('character', -el.value.length); + offset = sel.text.length - length; + } + return { offset: offset, length: length }; + } + + function killEvent(event) { + event.preventDefault(); + event.stopPropagation(); + } + function killEventImmediately(event) { + event.preventDefault(); + event.stopImmediatePropagation(); + } + + function measureTextWidth(e) { + if (!sizer){ + var style = e[0].currentStyle || window.getComputedStyle(e[0], null); + sizer = $(document.createElement("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" + }); + sizer.attr("class","select2-sizer"); + $("body").append(sizer); + } + sizer.text(e.val()); + return sizer.width(); + } + + function syncCssClasses(dest, src, adapter) { + var classes, replacements = [], adapted; + + classes = dest.attr("class"); + if (classes) { + classes = '' + classes; // for IE which returns object + $(classes.split(" ")).each2(function() { + if (this.indexOf("select2-") === 0) { + replacements.push(this); + } + }); + } + classes = src.attr("class"); + if (classes) { + classes = '' + classes; // for IE which returns object + $(classes.split(" ")).each2(function() { + if (this.indexOf("select2-") !== 0) { + adapted = adapter(this); + if (adapted) { + replacements.push(this); + } + } + }); + } + dest.attr("class", replacements.join(" ")); + } + + + function markMatch(text, term, markup, escapeMarkup) { + var match=text.toUpperCase().indexOf(term.toUpperCase()), + tl=term.length; + + if (match<0) { + markup.push(escapeMarkup(text)); + return; + } + + markup.push(escapeMarkup(text.substring(0, match))); + markup.push("<span class='select2-match'>"); + markup.push(escapeMarkup(text.substring(match, match + tl))); + markup.push("</span>"); + markup.push(escapeMarkup(text.substring(match + tl, text.length))); + } + + /** + * Produces an ajax-based query function + * + * @param options object containing configuration paramters + * @param options.params parameter map for the transport ajax call, can contain such options as cache, jsonpCallback, etc. see $.ajax + * @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.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, + ajaxUrl = options.url, + self = this; + + 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 + url = ajaxUrl, // ajax url string or function + transport = options.transport || $.fn.select2.ajaxDefaults.transport, + // deprecated - to be removed in 4.0 - use params instead + deprecated = { + type: options.type || 'GET', // set type of request (GET or POST) + cache: options.cache || false, + jsonpCallback: options.jsonpCallback||undefined, + dataType: options.dataType||"json" + }, + params = $.extend({}, $.fn.select2.ajaxDefaults.params, deprecated); + + data = data ? data.call(self, query.term, query.page, query.context) : null; + url = (typeof url === 'function') ? url.call(self, query.term, query.page, query.context) : url; + + if( null !== handler) { handler.abort(); } + + if (options.params) { + if ($.isFunction(options.params)) { + $.extend(params, options.params.call(self)); + } else { + $.extend(params, options.params); + } + } + + $.extend(params, { + url: url, + dataType: options.dataType, + data: data, + success: function (data) { + if (requestNumber < requestSequence) { + return; + } + // TODO - replace query.page with query so users have access to term, page, etc. + var results = options.results(data, query.page); + query.callback(results); + } + }); + handler = transport.call(self, params); + }, quietMillis); + }; + } + + /** + * Produces a query function that works with a local array + * + * @param options object containing configuration parameters. The options parameter can either be an array or an + * object. + * + * If the array form is used it is assumed that it contains objects with 'id' and 'text' keys. + * + * If the object form is used ti is assumed that it contains 'data' and 'text' keys. The 'data' key should contain + * an array of objects that will be used as choices. These objects must contain at least an 'id' key. The 'text' + * key can either be a String in which case it is expected that each element in the 'data' array has a key with the + * value of 'text' which will be used to match choices. Alternatively, text can be a function(item) that can extract + * the text. + */ + function local(options) { + var data = options, // data elements + dataText, + tmp, + text = function (item) { return ""+item.text; }; // function used to retrieve the text portion of a data item that is matched against the search + + if ($.isArray(data)) { + tmp = data; + data = { results: tmp }; + } + + if ($.isFunction(data) === false) { + tmp = data; + data = function() { return tmp; }; + } + + var dataItem = data(); + if (dataItem.text) { + text = dataItem.text; + // if text is not a function we assume it to be a key name + if (!$.isFunction(text)) { + dataText = dataItem.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]; }; + } + } + + return function (query) { + var t = query.term, filtered = { results: [] }, process; + if (t === "") { + query.callback(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 || query.matcher(t, text(group), datum)) { + collection.push(group); + } + } else { + if (query.matcher(t, text(datum), datum)) { + collection.push(datum); + } + } + }; + + $(data().results).each2(function(i, datum) { process(datum, filtered.results); }); + query.callback(filtered); + }; + } + + // TODO javadoc + function tags(data) { + var isFunc = $.isFunction(data); + return function (query) { + var t = query.term, filtered = {results: []}; + $(isFunc ? data() : data).each(function () { + var isObject = this.text !== undefined, + text = isObject ? this.text : this; + if (t === "" || query.matcher(t, text)) { + filtered.results.push(isObject ? this : {id: this, text: this}); + } + }); + query.callback(filtered); + }; + } + + /** + * Checks if the formatter function should be used. + * + * Throws an error if it is not a function. Returns true if it should be used, + * false if no formatting should be performed. + * + * @param formatter + */ + function checkFormatter(formatter, formatterName) { + if ($.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!==input) return input; + } + + /** + * 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 = $.extend(constructor.prototype, methods); + return constructor; + } + + AbstractSelect2 = clazz(Object, { + + // abstract + bind: function (func) { + var self = this; + return function () { + func.apply(self, arguments); + }; + }, + + // abstract + init: function (opts) { + var results, search, resultsSelector = ".select2-results", disabled, readonly; + + // prepare options + this.opts = opts = this.prepareOpts(opts); + + this.id=opts.id; + + // destroy if called on an existing component + if (opts.element.data("select2") !== undefined && + opts.element.data("select2") !== null) { + this.destroy(); + } + + this.container = this.createContainer(); + + this.containerId="s2id_"+(opts.element.attr("id") || "autogen"+nextUid()); + this.containerSelector="#"+this.containerId.replace(/([;&,\.\+\*\~':"\!\^#$%@\[\]\(\)=>\|])/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"); }); + + syncCssClasses(this.container, this.opts.element, this.opts.adaptContainerCssClass); + + this.container.css(evaluate(opts.containerCss)); + this.container.addClass(evaluate(opts.containerCssClass)); + + this.elementTabIndex = this.opts.element.attr("tabindex"); + + // swap container for the element + this.opts.element + .data("select2", this) + .attr("tabindex", "-1") + .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"); + + this.resultsPage = 0; + this.context = null; + + // initialize the container + this.initContainer(); + + installFilteredMouseMove(this.results); + this.dropdown.on("mousemove-filtered touchstart touchmove touchend", resultsSelector, this.bind(this.highlightUnderEvent)); + + installDebouncedScroll(80, this.results); + this.dropdown.on("scroll-debounced", resultsSelector, this.bind(this.loadMoreIfNeeded)); + + // do not propagate change event from the search field out of the component + $(this.container).on("change", ".select2-input", function(e) {e.stopPropagation();}); + $(this.dropdown).on("change", ".select2-input", function(e) {e.stopPropagation();}); + + // if jquery.mousewheel plugin is installed we can prevent out-of-bounds scrolling of results via mousewheel + if ($.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.on("keyup-change input paste", this.bind(this.updateResults)); + search.on("focus", function () { search.addClass("select2-focused"); }); + search.on("blur", function () { search.removeClass("select2-focused");}); + + this.dropdown.on("mouseup", resultsSelector, this.bind(function (e) { + if ($(e.target).closest(".select2-result-selectable").length > 0) { + this.highlightUnderEvent(e); + this.selectHighlighted(e); + } + })); + + // trap all mouse events from leaving the dropdown. sometimes there may be a modal that is listening + // for mouse events outside of itself so it can close itself. since the dropdown is now outside the select2's + // dom it will trigger the popup close, which is not what we want + this.dropdown.on("click mouseup mousedown", function (e) { e.stopPropagation(); }); + + if ($.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.maximumInputLength !== null) { + this.search.attr("maxlength", opts.maximumInputLength); + } + + var disabled = opts.element.prop("disabled"); + if (disabled === undefined) disabled = false; + this.enable(!disabled); + + var readonly = opts.element.prop("readonly"); + if (readonly === undefined) readonly = false; + this.readonly(readonly); + + // Calculate size of scrollbar + scrollBarDimensions = scrollBarDimensions || measureScrollbar(); + + this.autofocus = opts.element.prop("autofocus") + opts.element.prop("autofocus", false); + if (this.autofocus) this.focus(); + }, + + // abstract + destroy: function () { + var select2 = this.opts.element.data("select2"); + + if (this.propertyObserver) { delete this.propertyObserver; this.propertyObserver = null; } + + if (select2 !== undefined) { + + select2.container.remove(); + select2.dropdown.remove(); + select2.opts.element + .removeClass("select2-offscreen") + .removeData("select2") + .off(".select2") + .attr({"tabindex": this.elementTabIndex}) + .prop("autofocus", this.autofocus||false) + .show(); + } + }, + + // abstract + optionToData: function(element) { + if (element.is("option")) { + return { + id:element.prop("value"), + text:element.text(), + element: element.get(), + css: element.attr("class"), + disabled: element.prop("disabled"), + locked: equal(element.attr("locked"), "locked") + }; + } else if (element.is("optgroup")) { + return { + text:element.attr("label"), + children:[], + element: element.get(), + css: element.attr("class") + }; + } + }, + + // abstract + prepareOpts: function (opts) { + var element, select, idKey, ajaxUrl, self = this; + + 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 = $.extend({}, { + populateResults: function(container, results, query) { + var populate, data, result, children, id=this.opts.id; + + populate=function(results, container, depth) { + + var i, l, result, selectable, disabled, compound, node, label, innerContainer, formatted; + + results = opts.sortResults(results, container, query); + + for (i = 0, l = results.length; i < l; i = i + 1) { + + result=results[i]; + + disabled = (result.disabled === true); + selectable = (!disabled) && (id(result) !== undefined); + + compound=result.children && result.children.length > 0; + + node=$("<li></li>"); + node.addClass("select2-results-dept-"+depth); + node.addClass("select2-result"); + node.addClass(selectable ? "select2-result-selectable" : "select2-result-unselectable"); + if (disabled) { node.addClass("select2-disabled"); } + if (compound) { node.addClass("select2-result-with-children"); } + node.addClass(self.opts.formatResultCssClass(result)); + + label=$(document.createElement("div")); + label.addClass("select2-result-label"); + + formatted=opts.formatResult(result, label, query, self.opts.escapeMarkup); + if (formatted!==undefined) { + label.html(formatted); + } + + node.append(label); + + if (compound) { + + innerContainer=$("<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); + } + }, $.fn.select2.defaults, opts); + + if (typeof(opts.id) !== "function") { + idKey = opts.id; + opts.id = function (e) { return e[idKey]; }; + } + + if ($.isArray(opts.element.data("select2Tags"))) { + if ("tags" in opts) { + throw "tags specified as both an attribute 'data-select2-tags' and in options of Select2 " + opts.element.attr("id"); + } + opts.tags=opts.element.data("select2Tags"); + } + + 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(self.optionToData(element)); + } + } else if (element.is("optgroup")) { + group=self.optionToData(element); + 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.call(opts.element, opts.ajax); + } else if ("data" in opts) { + opts.query = local(opts.data); + } else if ("tags" in opts) { + opts.query = tags(opts.tags); + if (opts.createSearchChoice === undefined) { + opts.createSearchChoice = function (term) { return {id: term, text: term}; }; + } + if (opts.initSelection === undefined) { + 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 () { + var el = this.opts.element, sync; + + el.on("change.select2", this.bind(function (e) { + if (this.opts.element.data("select2-change-triggered") !== true) { + this.initSelection(); + } + })); + + sync = this.bind(function () { + + var enabled, readonly, self = this; + + // sync enabled state + + var disabled = el.prop("disabled"); + if (disabled === undefined) disabled = false; + this.enable(!disabled); + + var readonly = el.prop("readonly"); + if (readonly === undefined) readonly = false; + this.readonly(readonly); + + syncCssClasses(this.container, this.opts.element, this.opts.adaptContainerCssClass); + this.container.addClass(evaluate(this.opts.containerCssClass)); + + syncCssClasses(this.dropdown, this.opts.element, this.opts.adaptDropdownCssClass); + this.dropdown.addClass(evaluate(this.opts.dropdownCssClass)); + + }); + + // mozilla and IE + el.on("propertychange.select2 DOMAttrModified.select2", sync); + + + // hold onto a reference of the callback to work around a chromium bug + if (this.mutationCallback === undefined) { + this.mutationCallback = function (mutations) { + mutations.forEach(sync); + } + } + + // safari and chrome + if (typeof WebKitMutationObserver !== "undefined") { + if (this.propertyObserver) { delete this.propertyObserver; this.propertyObserver = null; } + this.propertyObserver = new WebKitMutationObserver(this.mutationCallback); + this.propertyObserver.observe(el.get(0), { attributes:true, subtree:false }); + } + }, + + // abstract + triggerSelect: function(data) { + var evt = $.Event("select2-selecting", { val: this.id(data), object: data }); + this.opts.element.trigger(evt); + return !evt.isDefaultPrevented(); + }, + + /** + * 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 + isInterfaceEnabled: function() + { + return this.enabledInterface === true; + }, + + // abstract + enableInterface: function() { + var enabled = this._enabled && !this._readonly, + disabled = !enabled; + + if (enabled === this.enabledInterface) return false; + + this.container.toggleClass("select2-container-disabled", disabled); + this.close(); + this.enabledInterface = enabled; + + return true; + }, + + // abstract + enable: function(enabled) { + if (enabled === undefined) enabled = true; + if (this._enabled === enabled) return false; + this._enabled = enabled; + + this.opts.element.prop("disabled", !enabled); + this.enableInterface(); + return true; + }, + + // abstract + readonly: function(enabled) { + if (enabled === undefined) enabled = false; + if (this._readonly === enabled) return false; + this._readonly = enabled; + + this.opts.element.prop("readonly", enabled); + this.enableInterface(); + return true; + }, + + // abstract + opened: function () { + return this.container.hasClass("select2-dropdown-open"); + }, + + // abstract + positionDropdown: function() { + var $dropdown = this.dropdown, + offset = this.container.offset(), + height = this.container.outerHeight(false), + width = this.container.outerWidth(false), + dropHeight = $dropdown.outerHeight(false), + viewPortRight = $(window).scrollLeft() + $(window).width(), + viewportBottom = $(window).scrollTop() + $(window).height(), + dropTop = offset.top + height, + dropLeft = offset.left, + enoughRoomBelow = dropTop + dropHeight <= viewportBottom, + enoughRoomAbove = (offset.top - dropHeight) >= this.body().scrollTop(), + dropWidth = $dropdown.outerWidth(false), + enoughRoomOnRight = dropLeft + dropWidth <= viewPortRight, + aboveNow = $dropdown.hasClass("select2-drop-above"), + bodyOffset, + above, + css, + resultsListNode; + + if (this.opts.dropdownAutoWidth) { + resultsListNode = $('.select2-results', $dropdown)[0]; + $dropdown.addClass('select2-drop-auto-width'); + $dropdown.css('width', ''); + // Add scrollbar width to dropdown if vertical scrollbar is present + dropWidth = $dropdown.outerWidth(false) + (resultsListNode.scrollHeight === resultsListNode.clientHeight ? 0 : scrollBarDimensions.width); + dropWidth > width ? width = dropWidth : dropWidth = width; + enoughRoomOnRight = dropLeft + dropWidth <= viewPortRight; + } + else { + this.container.removeClass('select2-drop-auto-width'); + } + + //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 (!enoughRoomOnRight) { + dropLeft = offset.left + width - dropWidth; + } + + if (above) { + dropTop = offset.top - dropHeight; + this.container.addClass("select2-drop-above"); + $dropdown.addClass("select2-drop-above"); + } + else { + this.container.removeClass("select2-drop-above"); + $dropdown.removeClass("select2-drop-above"); + } + + css = $.extend({ + top: dropTop, + left: dropLeft, + width: width + }, evaluate(this.opts.dropdownCss)); + + $dropdown.css(css); + }, + + // abstract + shouldOpen: function() { + var event; + + if (this.opened()) return false; + + if (this._enabled === false || this._readonly === true) return false; + + event = $.Event("select2-opening"); + 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; + + this.opening(); + + return true; + }, + + /** + * Performs the opening of the dropdown + */ + // abstract + opening: function() { + var cid = this.containerId, + scroll = "scroll." + cid, + resize = "resize."+cid, + orient = "orientationchange."+cid, + mask; + + this.container.addClass("select2-dropdown-open").addClass("select2-container-active"); + + this.clearDropdownAlignmentPreference(); + + if(this.dropdown[0] !== this.body().children().last()[0]) { + this.dropdown.detach().appendTo(this.body()); + } + + // create the dropdown mask if doesnt already exist + mask = $("#select2-drop-mask"); + if (mask.length == 0) { + mask = $(document.createElement("div")); + mask.attr("id","select2-drop-mask").attr("class","select2-drop-mask"); + mask.hide(); + mask.appendTo(this.body()); + mask.on("mousedown touchstart", function (e) { + var dropdown = $("#select2-drop"), self; + if (dropdown.length > 0) { + self=dropdown.data("select2"); + if (self.opts.selectOnBlur) { + self.selectHighlighted({noFocus: true}); + } + self.close(); + e.preventDefault(); + e.stopPropagation(); + } + }); + } + + // ensure the mask is always right before the dropdown + if (this.dropdown.prev()[0] !== mask[0]) { + this.dropdown.before(mask); + } + + // move the global id to the correct dropdown + $("#select2-drop").removeAttr("id"); + this.dropdown.attr("id", "select2-drop"); + + // show the elements + mask.css(_makeMaskCss()); + mask.show(); + this.dropdown.show(); + this.positionDropdown(); + + this.dropdown.addClass("select2-drop-active"); + this.ensureHighlightVisible(); + + // attach listeners to events that can change the position of the container and thus require + // the position of the dropdown to be updated as well so it does not come unglued from the container + var that = this; + this.container.parents().add(window).each(function () { + $(this).on(resize+" "+scroll+" "+orient, function (e) { + $("#select2-drop-mask").css(_makeMaskCss()); + that.positionDropdown(); + }); + }); + + function _makeMaskCss() { + return { + width : Math.max(document.documentElement.scrollWidth, $(window).width()), + height : Math.max(document.documentElement.scrollHeight, $(window).height()) + } + } + }, + + // abstract + close: function () { + if (!this.opened()) return; + + var cid = this.containerId, + scroll = "scroll." + cid, + resize = "resize."+cid, + orient = "orientationchange."+cid; + + // unbind event listeners + this.container.parents().add(window).each(function () { $(this).off(scroll).off(resize).off(orient); }); + + this.clearDropdownAlignmentPreference(); + + $("#select2-drop-mask").hide(); + this.dropdown.removeAttr("id"); // only the active dropdown has the select2-drop id + this.dropdown.hide(); + this.container.removeClass("select2-dropdown-open"); + this.results.empty(); + + + this.clearSearch(); + this.search.removeClass("select2-active"); + this.opts.element.trigger($.Event("select2-close")); + }, + + // abstract + clearSearch: function () { + + }, + + //abstract + getMaximumSelectionSize: function() { + return evaluate(this.opts.maximumSelectionSize); + }, + + // 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 = this.findHighlightableChoices().find('.select2-result-label'); + + child = $(children[index]); + + hb = child.offset().top + child.outerHeight(true); + + // 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(true); + } + } + + rb = results.offset().top + results.outerHeight(true); + 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 && child.css('display') != 'none' ) { + results.scrollTop(results.scrollTop() + y); // y is negative + } + }, + + // abstract + findHighlightableChoices: function() { + return this.results.find(".select2-result-selectable:not(.select2-selected):not(.select2-disabled)"); + }, + + // abstract + moveHighlight: function (delta) { + var choices = this.findHighlightableChoices(), + 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") && !choice.hasClass("select2-selected")) { + this.highlight(index); + break; + } + } + }, + + // abstract + highlight: function (index) { + var choices = this.findHighlightableChoices(), + choice, + data; + + 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; + + this.results.find(".select2-highlighted").removeClass("select2-highlighted"); + + choice = $(choices[index]); + choice.addClass("select2-highlighted"); + + this.ensureHighlightVisible(); + + data = choice.data("select2-data"); + if (data) { + this.opts.element.trigger({ type: "select2-highlight", val: this.id(data), choice: data }); + } + }, + + // abstract + countSelectableResults: function() { + return this.findHighlightableChoices().length; + }, + + // abstract + highlightUnderEvent: function (event) { + var el = $(event.target).closest(".select2-result-selectable"); + if (el.length > 0 && !el.is(".select2-highlighted")) { + var choices = this.findHighlightableChoices(); + 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 <= this.opts.loadMorePadding) { + more.addClass("select2-active"); + this.opts.query({ + element: this.opts.element, + 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}); + self.postprocessResults(data, false, false); + + 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; + self.context = data.context; + })}); + } + }, + + /** + * 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, + term = search.val(), + lastTerm=$.data(this.container, "select2-last-term"); + + // prevent duplicate queries against the same term + if (initial !== true && lastTerm && equal(term, lastTerm)) return; + + $.data(this.container, "select2-last-term", term); + + // if the search is currently hidden we do not alter the results + if (initial !== true && (this.showSearchInput === false || !this.opened())) { + return; + } + + function postRender() { + results.scrollTop(0); + search.removeClass("select2-active"); + self.positionDropdown(); + } + + function render(html) { + results.html(html); + postRender(); + } + + var maxSelSize = this.getMaximumSelectionSize(); + if (maxSelSize >=1) { + data = this.data(); + if ($.isArray(data) && data.length >= maxSelSize && checkFormatter(opts.formatSelectionTooBig, "formatSelectionTooBig")) { + render("<li class='select2-selection-limit'>" + opts.formatSelectionTooBig(maxSelSize) + "</li>"); + return; + } + } + + if (search.val().length < opts.minimumInputLength) { + if (checkFormatter(opts.formatInputTooShort, "formatInputTooShort")) { + render("<li class='select2-no-results'>" + opts.formatInputTooShort(search.val(), opts.minimumInputLength) + "</li>"); + } else { + render(""); + } + if (initial) this.showSearch(true); + return; + } + + if (opts.maximumInputLength && search.val().length > opts.maximumInputLength) { + if (checkFormatter(opts.formatInputTooLong, "formatInputTooLong")) { + render("<li class='select2-no-results'>" + opts.formatInputTooLong(search.val(), opts.maximumInputLength) + "</li>"); + } else { + render(""); + } + return; + } + + if (opts.formatSearching && this.findHighlightableChoices().length === 0) { + render("<li class='select2-searching'>" + opts.formatSearching() + "</li>"); + } + + search.addClass("select2-active"); + + // 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({ + element: opts.element, + 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()) { + this.search.removeClass("select2-active"); + 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(); + + this.opts.element.trigger({ type: "select2-loaded", data:data }); + })}); + }, + + // abstract + cancel: function () { + this.close(); + }, + + // abstract + blur: function () { + // if selectOnBlur == true, select the currently highlighted option + if (this.opts.selectOnBlur) + this.selectHighlighted({noFocus: true}); + + this.close(); + this.container.removeClass("select2-container-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 () { + focus(this.search); + }, + + // abstract + selectHighlighted: function (options) { + var index=this.highlight(), + highlighted=this.results.find(".select2-highlighted"), + data = highlighted.closest('.select2-result').data("select2-data"); + + if (data) { + this.highlight(index); + this.onSelect(data, options); + } + }, + + // 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(false) === 0 ? 'auto' : this.opts.element.outerWidth(false) + '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))/i); + if (matches !== null && matches.length >= 1) + return matches[1]; + } + } + + // 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 && style.length > 0) return style; + + if (this.opts.width === "resolve") { + // finally, fallback on the calculated width of the element + return (this.opts.element.outerWidth(false) === 0 ? 'auto' : this.opts.element.outerWidth(false) + '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.css("width", width); + } + } + }); + + SingleSelect2 = clazz(AbstractSelect2, { + + // single + + createContainer: function () { + var container = $(document.createElement("div")).attr({ + "class": "select2-container" + }).html([ + "<a href='javascript:void(0)' onclick='return false;' class='select2-choice' tabindex='-1'>", + " <span> </span><abbr class='select2-search-choice-close'></abbr>", + " <div><b></b></div>" , + "</a>", + "<input class='select2-focusser select2-offscreen' type='text'/>", + "<div class='select2-drop select2-display-none'>" , + " <div class='select2-search'>" , + " <input type='text' autocomplete='off' autocorrect='off' autocapitilize='off' spellcheck='false' class='select2-input'/>" , + " </div>" , + " <ul class='select2-results'>" , + " </ul>" , + "</div>"].join("")); + return container; + }, + + // single + enableInterface: function() { + if (this.parent.enableInterface.apply(this, arguments)) { + this.focusser.prop("disabled", !this.isInterfaceEnabled()); + } + }, + + // single + opening: function () { + var el, range; + this.parent.opening.apply(this, arguments); + if (this.showSearchInput !== false) { + // IE appends focusser.val() at the end of field :/ so we manually insert it at the beginning using a range + // all other browsers handle this just fine + + this.search.val(this.focusser.val()); + } + this.search.focus(); + // in IE we have to move the cursor to the end after focussing, otherwise it will be at the beginning and + // new text will appear *before* focusser.val() + el = this.search.get(0); + if (el.createTextRange) { + range = el.createTextRange(); + range.collapse(false); + range.select(); + } + + this.focusser.prop("disabled", true).val(""); + this.updateResults(true); + this.opts.element.trigger($.Event("select2-open")); + }, + + // single + close: function () { + if (!this.opened()) return; + this.parent.close.apply(this, arguments); + this.focusser.removeAttr("disabled"); + this.focusser.focus(); + }, + + // single + focus: function () { + if (this.opened()) { + this.close(); + } else { + this.focusser.removeAttr("disabled"); + this.focusser.focus(); + } + }, + + // single + isFocused: function () { + return this.container.hasClass("select2-container-active"); + }, + + // single + cancel: function () { + this.parent.cancel.apply(this, arguments); + this.focusser.removeAttr("disabled"); + this.focusser.focus(); + }, + + // single + initContainer: function () { + + var selection, + container = this.container, + dropdown = this.dropdown; + + this.showSearch(false); + + this.selection = selection = container.find(".select2-choice"); + + this.focusser = container.find(".select2-focusser"); + + // rewrite labels from original element to focusser + this.focusser.attr("id", "s2id_autogen"+nextUid()); + + $("label[for='" + this.opts.element.attr("id") + "']") + .attr('for', this.focusser.attr('id')); + + this.focusser.attr("tabindex", this.elementTabIndex); + + this.search.on("keydown", this.bind(function (e) { + if (!this.isInterfaceEnabled()) return; + + if (e.which === KEY.PAGE_UP || e.which === KEY.PAGE_DOWN) { + // prevent the page from scrolling + killEvent(e); + return; + } + + switch (e.which) { + case KEY.UP: + case KEY.DOWN: + this.moveHighlight((e.which === KEY.UP) ? -1 : 1); + killEvent(e); + return; + case KEY.ENTER: + this.selectHighlighted(); + killEvent(e); + return; + case KEY.TAB: + this.selectHighlighted({noFocus: true}); + return; + case KEY.ESC: + this.cancel(e); + killEvent(e); + return; + } + })); + + this.search.on("blur", this.bind(function(e) { + // a workaround for chrome to keep the search field focussed when the scroll bar is used to scroll the dropdown. + // without this the search field loses focus which is annoying + if (document.activeElement === this.body().get(0)) { + window.setTimeout(this.bind(function() { + this.search.focus(); + }), 0); + } + })); + + this.focusser.on("keydown", this.bind(function (e) { + if (!this.isInterfaceEnabled()) 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) { + killEvent(e); + return; + } + + if (e.which == KEY.DOWN || e.which == KEY.UP + || (e.which == KEY.ENTER && this.opts.openOnEnter)) { + this.open(); + killEvent(e); + return; + } + + if (e.which == KEY.DELETE || e.which == KEY.BACKSPACE) { + if (this.opts.allowClear) { + this.clear(); + } + killEvent(e); + return; + } + })); + + + installKeyUpChangeEvent(this.focusser); + this.focusser.on("keyup-change input", this.bind(function(e) { + e.stopPropagation(); + if (this.opened()) return; + this.open(); + })); + + selection.on("mousedown", "abbr", this.bind(function (e) { + if (!this.isInterfaceEnabled()) return; + this.clear(); + killEventImmediately(e); + this.close(); + this.selection.focus(); + })); + + selection.on("mousedown", this.bind(function (e) { + + if (!this.container.hasClass("select2-container-active")) { + this.opts.element.trigger($.Event("select2-focus")); + } + + if (this.opened()) { + this.close(); + } else if (this.isInterfaceEnabled()) { + this.open(); + } + + killEvent(e); + })); + + dropdown.on("mousedown", this.bind(function() { this.search.focus(); })); + + selection.on("focus", this.bind(function(e) { + killEvent(e); + })); + + this.focusser.on("focus", this.bind(function(){ + if (!this.container.hasClass("select2-container-active")) { + this.opts.element.trigger($.Event("select2-focus")); + } + this.container.addClass("select2-container-active"); + })).on("blur", this.bind(function() { + if (!this.opened()) { + this.container.removeClass("select2-container-active"); + this.opts.element.trigger($.Event("select2-blur")); + } + })); + this.search.on("focus", this.bind(function(){ + if (!this.container.hasClass("select2-container-active")) { + this.opts.element.trigger($.Event("select2-focus")); + } + this.container.addClass("select2-container-active"); + })); + + this.initContainerWidth(); + this.opts.element.addClass("select2-offscreen"); + this.setPlaceholder(); + + }, + + // single + clear: function(triggerChange) { + var data=this.selection.data("select2-data"); + if (data) { // guard against queued quick consecutive clicks + this.opts.element.val(""); + this.selection.find("span").empty(); + this.selection.removeData("select2-data"); + this.setPlaceholder(); + + if (triggerChange !== false){ + this.opts.element.trigger({ type: "select2-removed", val: this.id(data), choice: data }); + this.triggerChange({removed:data}); + } + } + }, + + /** + * Sets selection based on source element's value + */ + // single + initSelection: function () { + var selected; + if (this.opts.element.val() === "" && this.opts.element.text() === "") { + this.updateSelection([]); + 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), + self=this; + + 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' + callback(self.optionToData(selected)); + }; + } else if ("data" in opts) { + // install default initSelection when applied to hidden input and data is local + opts.initSelection = opts.initSelection || function (element, callback) { + var id = element.val(); + //search in data by id, storing the actual matching item + var match = null; + opts.query({ + matcher: function(term, text, el){ + var is_match = equal(id, opts.id(el)); + if (is_match) { + match = el; + } + return is_match; + }, + callback: !$.isFunction(callback) ? $.noop : function() { + callback(match); + } + }); + }; + } + + return opts; + }, + + // single + getPlaceholder: function() { + // if a placeholder is specified on a single select without the first empty option ignore it + if (this.select) { + if (this.select.find("option").first().text() !== "") { + return undefined; + } + } + + return this.parent.getPlaceholder.apply(this, arguments); + }, + + // 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.container.removeClass("select2-allowclear"); + } + }, + + // single + postprocessResults: function (data, initial, noHighlightUpdate) { + var selected = 0, self = this, showSearchInput = true; + + // find the selected element in the result list + + this.findHighlightableChoices().each2(function (i, elm) { + if (equal(self.id(elm.data("select2-data")), self.opts.element.val())) { + selected = i; + return false; + } + }); + + // and highlight it + if (noHighlightUpdate !== false) { + this.highlight(selected); + } + + // show the search box if this is the first we got the results and there are enough of them for search + + if (initial === true && this.showSearchInput === false) { + var min=this.opts.minimumResultsForSearch; + if (min>=0) { + this.showSearch(countResults(data.results)>=min); + } + } + + }, + + // single + showSearch: function(showSearchInput) { + this.showSearchInput = showSearchInput; + + this.dropdown.find(".select2-search").toggleClass("select2-search-hidden", !showSearchInput); + this.dropdown.find(".select2-search").toggleClass("select2-offscreen", !showSearchInput); + //add "select2-with-searchbox" to the container if search box is shown + $(this.dropdown, this.container).toggleClass("select2-with-searchbox", showSearchInput); + }, + + // single + onSelect: function (data, options) { + + if (!this.triggerSelect(data)) { return; } + + var old = this.opts.element.val(), + oldData = this.data(); + + this.opts.element.val(this.id(data)); + this.updateSelection(data); + + this.opts.element.trigger({ type: "select2-selected", val: this.id(data), choice: data }); + + this.close(); + + if (!options || !options.noFocus) + this.selection.focus(); + + if (!equal(old, this.id(data))) { this.triggerChange({added:data,removed:oldData}); } + }, + + // 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.container.addClass("select2-allowclear"); + } + }, + + // single + val: function () { + var val, + triggerChange = false, + data = null, + self = this, + oldData = this.data(); + + if (arguments.length === 0) { + return this.opts.element.val(); + } + + val = arguments[0]; + + if (arguments.length > 1) { + triggerChange = arguments[1]; + } + + if (this.select) { + this.select + .val(val) + .find(":selected").each2(function (i, elm) { + data = self.optionToData(elm); + return false; + }); + this.updateSelection(data); + this.setPlaceholder(); + if (triggerChange) { + this.triggerChange({added: data, removed:oldData}); + } + } 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,'',0] - 0 is legal + if (!val && val !== 0) { + this.clear(triggerChange); + 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(); + if (triggerChange) { + self.triggerChange({added: data, removed:oldData}); + } + }); + } + }, + + // single + clearSearch: function () { + this.search.val(""); + this.focusser.val(""); + }, + + // single + data: function(value, triggerChange) { + 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(triggerChange); + } else { + data = this.data(); + this.opts.element.val(!value ? "" : this.id(value)); + this.updateSelection(value); + if (triggerChange) { + this.triggerChange({added: value, removed:data}); + } + } + } + } + }); + + MultiSelect2 = clazz(AbstractSelect2, { + + // multi + createContainer: function () { + var container = $(document.createElement("div")).attr({ + "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' autocorrect='off' autocapitilize='off' spellcheck='false' class='select2-input'>" , + " </li>" , + "</ul>" , + "<div class='select2-drop select2-drop-multi select2-display-none'>" , + " <ul class='select2-results'>" , + " </ul>" , + "</div>"].join("")); + return container; + }, + + // multi + prepareOpts: function () { + var opts = this.parent.prepareOpts.apply(this, arguments), + self=this; + + // 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(self.optionToData(elm)); + }); + callback(data); + }; + } else if ("data" in opts) { + // install default initSelection when applied to hidden input and data is local + opts.initSelection = opts.initSelection || function (element, callback) { + var ids = splitVal(element.val(), opts.separator); + //search in data by array of ids, storing matching items in a list + var matches = []; + opts.query({ + matcher: function(term, text, el){ + var is_match = $.grep(ids, function(id) { + return equal(id, opts.id(el)); + }).length; + if (is_match) { + matches.push(el); + } + return is_match; + }, + callback: !$.isFunction(callback) ? $.noop : function() { + // reorder matches based on the order they appear in the ids array because right now + // they are in the order in which they appear in data array + var ordered = []; + for (var i = 0; i < ids.length; i++) { + var id = ids[i]; + for (var j = 0; j < matches.length; j++) { + var match = matches[j]; + if (equal(id, opts.id(match))) { + ordered.push(match); + matches.splice(j, 1); + break; + } + } + } + callback(ordered); + } + }); + }; + } + + return opts; + }, + + selectChoice: function (choice) { + + var selected = this.container.find(".select2-search-choice-focus"); + if (selected.length && choice && choice[0] == selected[0]) { + + } else { + if (selected.length) { + this.opts.element.trigger("choice-deselected", selected); + } + selected.removeClass("select2-search-choice-focus"); + if (choice && choice.length) { + this.close(); + choice.addClass("select2-search-choice-focus"); + this.opts.element.trigger("choice-selected", choice); + } + } + }, + + // multi + initContainer: function () { + + var selector = ".select2-choices", selection; + + this.searchContainer = this.container.find(".select2-search-field"); + this.selection = selection = this.container.find(selector); + + var _this = this; + this.selection.on("mousedown", ".select2-search-choice", function (e) { + //killEvent(e); + _this.search[0].focus(); + _this.selectChoice($(this)); + }) + //.sortable({ + // items: " > li", + // tolerance: "pointer", + // revert: 100 + //}); + + // rewrite labels from original element to focusser + this.search.attr("id", "s2id_autogen"+nextUid()); + $("label[for='" + this.opts.element.attr("id") + "']") + .attr('for', this.search.attr('id')); + + this.search.on("input paste", this.bind(function() { + if (!this.isInterfaceEnabled()) return; + if (!this.opened()) { + this.open(); + } + })); + + this.search.attr("tabindex", this.elementTabIndex); + + this.keydowns = 0; + this.search.on("keydown", this.bind(function (e) { + if (!this.isInterfaceEnabled()) return; + + ++this.keydowns; + var selected = selection.find(".select2-search-choice-focus"); + var prev = selected.prev(".select2-search-choice:not(.select2-locked)"); + var next = selected.next(".select2-search-choice:not(.select2-locked)"); + var pos = getCursorInfo(this.search); + + if (selected.length && + (e.which == KEY.LEFT || e.which == KEY.RIGHT || e.which == KEY.BACKSPACE || e.which == KEY.DELETE || e.which == KEY.ENTER)) { + var selectedChoice = selected; + if (e.which == KEY.LEFT && prev.length) { + selectedChoice = prev; + } + else if (e.which == KEY.RIGHT) { + selectedChoice = next.length ? next : null; + } + else if (e.which === KEY.BACKSPACE) { + this.unselect(selected.first()); + this.search.width(10); + selectedChoice = prev.length ? prev : next; + } else if (e.which == KEY.DELETE) { + this.unselect(selected.first()); + this.search.width(10); + selectedChoice = next.length ? next : null; + } else if (e.which == KEY.ENTER) { + selectedChoice = null; + } + + this.selectChoice(selectedChoice); + killEvent(e); + if (!selectedChoice || !selectedChoice.length) { + this.open(); + } + return; + } else if (((e.which === KEY.BACKSPACE && this.keydowns == 1) + || e.which == KEY.LEFT) && (pos.offset == 0 && !pos.length)) { + + this.selectChoice(selection.find(".select2-search-choice:not(.select2-locked)").last()); + killEvent(e); + return; + } else { + this.selectChoice(null); + } + + 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: + this.selectHighlighted(); + killEvent(e); + return; + case KEY.TAB: + this.selectHighlighted({noFocus:true}); + 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 (e.which === KEY.ENTER) { + if (this.opts.openOnEnter === false) { + return; + } else if (e.altKey || e.ctrlKey || e.shiftKey || e.metaKey) { + return; + } + } + + this.open(); + + if (e.which === KEY.PAGE_UP || e.which === KEY.PAGE_DOWN) { + // prevent the page from scrolling + killEvent(e); + } + + if (e.which === KEY.ENTER) { + // prevent form from being submitted + killEvent(e); + } + + })); + + this.search.on("keyup", this.bind(function (e) { + this.keydowns = 0; + this.resizeSearch(); + }) + ); + + this.search.on("blur", this.bind(function(e) { + this.container.removeClass("select2-container-active"); + this.search.removeClass("select2-focused"); + this.selectChoice(null); + if (!this.opened()) this.clearSearch(); + e.stopImmediatePropagation(); + this.opts.element.trigger($.Event("select2-blur")); + })); + + this.container.on("mousedown", selector, this.bind(function (e) { + if (!this.isInterfaceEnabled()) return; + if ($(e.target).closest(".select2-search-choice").length > 0) { + // clicked inside a select2 search choice, do not open + return; + } + this.selectChoice(null); + this.clearPlaceholder(); + if (!this.container.hasClass("select2-container-active")) { + this.opts.element.trigger($.Event("select2-focus")); + } + this.open(); + this.focusSearch(); + e.preventDefault(); + })); + + this.container.on("focus", selector, this.bind(function () { + if (!this.isInterfaceEnabled()) return; + if (!this.container.hasClass("select2-container-active")) { + this.opts.element.trigger($.Event("select2-focus")); + } + this.container.addClass("select2-container-active"); + this.dropdown.addClass("select2-drop-active"); + this.clearPlaceholder(); + })); + + this.initContainerWidth(); + this.opts.element.addClass("select2-offscreen"); + + // set the placeholder if necessary + this.clearSearch(); + }, + + // multi + enableInterface: function() { + if (this.parent.enableInterface.apply(this, arguments)) { + this.search.prop("disabled", !this.isInterfaceEnabled()); + } + }, + + // multi + initSelection: function () { + var data; + if (this.opts.element.val() === "" && this.opts.element.text() === "") { + 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(), + maxWidth = this.getMaxSearchWidth(); + + 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 + // we could call this.resizeSearch(), but we do not because that requires a sizer and we do not want to create one so early because of a firefox bug, see #944 + this.search.width(maxWidth > 0 ? maxWidth : this.container.css("width")); + } else { + this.search.val("").width(10); + } + }, + + // multi + clearPlaceholder: function () { + if (this.search.hasClass("select2-default")) { + this.search.val("").removeClass("select2-default"); + } + }, + + // multi + opening: function () { + this.clearPlaceholder(); // should be done before super so placeholder is not used to search + this.resizeSearch(); + + this.parent.opening.apply(this, arguments); + + this.focusSearch(); + + this.updateResults(true); + this.search.focus(); + this.opts.element.trigger($.Event("select2-open")); + }, + + // multi + close: function () { + if (!this.opened()) return; + this.parent.close.apply(this, arguments); + }, + + // multi + focus: function () { + this.close(); + this.search.focus(); + //this.opts.element.triggerHandler("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(); + }, + + // multi + 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, options) { + + if (!this.triggerSelect(data)) { return; } + + this.addSelectedChoice(data); + + this.opts.element.trigger({ type: "selected", val: this.id(data), choice: data }); + + if (this.select || !this.opts.closeOnSelect) this.postprocessResults(); + + if (this.opts.closeOnSelect) { + this.close(); + this.search.width(10); + } else { + if (this.countSelectableResults()>0) { + this.search.width(10); + this.resizeSearch(); + if (this.getMaximumSelectionSize() > 0 && this.val().length >= this.getMaximumSelectionSize()) { + // if we reached max selection size repaint the results so choices + // are replaced with the max selection reached message + this.updateResults(true); + } + this.positionDropdown(); + } else { + // if nothing left to select close + this.close(); + this.search.width(10); + } + } + + // 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 }); + + if (!options || !options.noFocus) + this.focusSearch(); + }, + + // multi + cancel: function () { + this.close(); + this.focusSearch(); + }, + + addSelectedChoice: function (data) { + var enableChoice = !data.locked, + enabledItem = $( + "<li class='select2-search-choice'>" + + " <div></div>" + + " <a href='#' onclick='return false;' class='select2-search-choice-close' tabindex='-1'></a>" + + "</li>"), + disabledItem = $( + "<li class='select2-search-choice select2-locked'>" + + "<div></div>" + + "</li>"); + var choice = enableChoice ? enabledItem : disabledItem, + id = this.id(data), + val = this.getVal(), + formatted; + + formatted=this.opts.formatSelection(data, choice.find("div")); + if (formatted != undefined) { + choice.find("div").replaceWith("<div title='"+this.opts.escapeMarkup(formatted)+"'>"+this.opts.escapeMarkup(formatted)+"</div>"); + } + + if(enableChoice){ + choice.find(".select2-search-choice-close") + .on("mousedown", killEvent) + .on("click dblclick", this.bind(function (e) { + if (!this.isInterfaceEnabled()) 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); + })).on("focus", this.bind(function () { + if (!this.isInterfaceEnabled()) 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"); + + if (!data) { + // prevent a race condition when the 'x' is clicked really fast repeatedly the event can be queued + // and invoked on an element already removed + return; + } + + index = indexOf(this.id(data), val); + + if (index >= 0) { + val.splice(index, 1); + this.setVal(val); + if (this.select) this.postprocessResults(); + } + selected.remove(); + + this.opts.element.trigger({ type: "removed", val: this.id(data), choice: data }); + this.triggerChange({ removed: data }); + }, + + // multi + postprocessResults: function (data, initial, noHighlightUpdate) { + var val = this.getVal(), + choices = this.results.find(".select2-result"), + 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-selected"); + // mark all children of the selected parent as selected + choice.find(".select2-result-selectable").addClass("select2-selected"); + } + }); + + compound.each2(function(i, choice) { + // hide an optgroup if it doesnt have any selectable children + if (!choice.is('.select2-result-selectable') + && choice.find(".select2-result-selectable:not(.select2-selected)").length === 0) { + choice.addClass("select2-selected"); + } + }); + + if (this.highlight() == -1 && noHighlightUpdate !== false){ + self.highlight(0); + } + + //If all results are chosen render formatNoMAtches + if(!this.opts.createSearchChoice && !choices.filter('.select2-result:not(.select2-selected)').length > 0){ + this.results.append("<li class='select2-no-results'>" + self.opts.formatNoMatches(self.search.val()) + "</li>"); + } + + }, + + // multi + getMaxSearchWidth: function() { + return this.selection.width() - getSideBorderPadding(this.search); + }, + + // 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; + } + + if (searchWidth <= 0) { + searchWidth = minimumWidth; + } + + 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 + $(val).each(function () { + if (indexOf(this, unique) < 0) unique.push(this); + }); + this.opts.element.val(unique.length === 0 ? "" : unique.join(this.opts.separator)); + } + }, + + // multi + buildChangeDetails: function (old, current) { + var current = current.slice(0), + old = old.slice(0); + + // remove intersection from each array + for (var i = 0; i < current.length; i++) { + for (var j = 0; j < old.length; j++) { + if (equal(this.opts.id(current[i]), this.opts.id(old[j]))) { + current.splice(i, 1); + i--; + old.splice(j, 1); + j--; + } + } + } + + return {added: current, removed: old}; + }, + + + // multi + val: function (val, triggerChange) { + var oldData, self=this, changeDetails; + + if (arguments.length === 0) { + return this.getVal(); + } + + oldData=this.data(); + if (!oldData.length) oldData=[]; + + // val is an id. !val is true for [undefined,null,'',0] - 0 is legal + if (!val && val !== 0) { + this.opts.element.val(""); + this.updateSelection([]); + this.clearSearch(); + if (triggerChange) { + this.triggerChange({added: this.data(), removed: oldData}); + } + return; + } + + // val is a list of ids + this.setVal(val); + + if (this.select) { + this.opts.initSelection(this.select, this.bind(this.updateSelection)); + if (triggerChange) { + this.triggerChange(this.buildChangeDetails(oldData, this.data())); + } + } else { + if (this.opts.initSelection === undefined) { + throw new Error("val() cannot be called if initSelection() is not defined"); + } + + this.opts.initSelection(this.opts.element, function(data){ + var ids=$(data).map(self.id); + self.setVal(ids); + self.updateSelection(data); + self.clearSearch(); + if (triggerChange) { + self.triggerChange(this.buildChangeDetails(oldData, this.data())); + } + }); + } + 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, triggerChange) { + var self=this, ids, old; + if (arguments.length === 0) { + return this.selection + .find(".select2-search-choice") + .map(function() { return $(this).data("select2-data"); }) + .get(); + } else { + old = this.data(); + if (!values) { values = []; } + ids = $.map(values, function(e) { return self.opts.id(e); }); + this.setVal(ids); + this.updateSelection(values); + this.clearSearch(); + if (triggerChange) { + this.triggerChange(this.buildChangeDetails(old, this.data())); + } + } + } + }); + + $.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", "readonly", "positionDropdown", "data"], + valueMethods = ["val", "opened", "isFocused", "container", "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.prop("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 (indexOf(args[0], valueMethods) >= 0) { + 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", + loadMorePadding: 0, + closeOnSelect: true, + openOnEnter: true, + containerCss: {}, + dropdownCss: {}, + containerCssClass: "", + dropdownCssClass: "", + formatResult: function(result, container, query, escapeMarkup) { + var markup=[]; + markMatch(result.text, query.term, markup, escapeMarkup); + return markup.join(""); + }, + formatSelection: function (data, container) { + return data ? data.text : undefined; + }, + sortResults: function (results, container, query) { + return results; + }, + formatResultCssClass: function(data) {return undefined;}, + formatNoMatches: function () { return "No matches found"; }, + formatInputTooShort: function (input, min) { var n = min - input.length; return "Please enter " + n + " more character" + (n == 1? "" : "s"); }, + formatInputTooLong: function (input, max) { var n = input.length - max; return "Please delete " + n + " character" + (n == 1? "" : "s"); }, + 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, + maximumInputLength: null, + 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) { + var replace_map = { + '\\': '\', + '&': '&', + '<': '<', + '>': '>', + '"': '"', + "'": ''', + "/": '/' + }; + + return String(markup).replace(/[&<>"'\/\\]/g, function (match) { + return replace_map[match]; + }); + }, + blurOnChange: false, + selectOnBlur: false, + adaptContainerCssClass: function(c) { return c; }, + adaptDropdownCssClass: function(c) { return null; } + }; + + $.fn.select2.ajaxDefaults = { + transport: $.ajax, + params: { + type: "GET", + cache: false, + dataType: "json" + } + }; + + // exports + window.Select2 = { + query: { + ajax: ajax, + local: local, + tags: tags + }, util: { + debounce: debounce, + markMatch: markMatch + }, "class": { + "abstract": AbstractSelect2, + "single": SingleSelect2, + "multi": MultiSelect2 + } + }; + +}(jQuery));