js: update select2 to 3.5.4

(4.x seems like a more major upgrade - we stick to the 3 series for now.)

Note that select2-bootstrap.css *not* is upgraded. It is a separate thing (see
LICENSE.md) and currently unused. (Select2 now has similar functionality built
in - that should perhaps be used with Bootstrap instead.)

kallithea/public/js/select2/select2.css

@@ -1,13 +1,10 b''
 /*
-Version: 3.5.0 Timestamp: Mon Jun 16 19:29:44 EDT 2014
+Version: 3.5.4 Timestamp: Sun Aug 30 13:30:32 EDT 2015
 */
 .select2-container {
     margin: 0;
     position: relative;
     display: inline-block;
-    /* inline-block for ie7 */
-    zoom: 1;
-    *display: inline;
     vertical-align: middle;
 }
 
@@ -180,10 +177,6 b' html[dir="rtl"] .select2-container .sele'
     width: auto;
 }
 
-.select2-drop-auto-width .select2-search {
-    padding-top: 4px;
-}
-
 .select2-container .select2-choice .select2-arrow {
     display: inline-block;
     width: 18px;
@@ -230,8 +223,7 b' html[dir="rtl"] .select2-container .sele'
     width: 100%;
     min-height: 26px;
     margin: 0;
-    padding-left: 4px;
-    padding-right: 4px;
+    padding: 4px 4px 0 4px;
 
     position: relative;
     z-index: 10000;
@@ -273,10 +265,6 b' html[dir="rtl"] .select2-search input {'
     background: url('select2.png') no-repeat -37px -22px, linear-gradient(to bottom, #fff 85%, #eee 99%) 0 0;
 }
 
-.select2-drop.select2-drop-above .select2-search input {
-    margin-top: 4px;
-}
-
 .select2-search input.select2-active {
     background: #fff url('select2-spinner.gif') no-repeat 100%;
     background: url('select2-spinner.gif') no-repeat 100%, -webkit-gradient(linear, left bottom, left top, color-stop(0.85, #fff), color-stop(0.99, #eee));
@@ -422,9 +410,9 b' html[dir="rtl"] .select2-results {'
     color: #000;
 }
 
-
 .select2-results .select2-no-results,
 .select2-results .select2-searching,
+.select2-results .select2-ajax-error,
 .select2-results .select2-selection-limit {
     background: #f4f4f4;
     display: list-item;
@@ -454,6 +442,10 b' disabled look for disabled choices in th'
     background: #f4f4f4 url('select2-spinner.gif') no-repeat 100%;
 }
 
+.select2-results .select2-ajax-error {
+    background: rgba(255, 50, 50, .2);
+}
+
 .select2-more-results {
     background: #f4f4f4;
     display: list-item;
@@ -582,7 +574,7 b' html[dir="rtl"] .select2-container-multi'
     background-image: -webkit-gradient(linear, 0% 0%, 0% 100%, color-stop(20%, #f4f4f4), color-stop(50%, #f0f0f0), color-stop(52%, #e8e8e8), color-stop(100%, #eee));
     background-image: -webkit-linear-gradient(top, #f4f4f4 20%, #f0f0f0 50%, #e8e8e8 52%, #eee 100%);
     background-image: -moz-linear-gradient(top, #f4f4f4 20%, #f0f0f0 50%, #e8e8e8 52%, #eee 100%);
-    background-image: linear-gradient(to top, #f4f4f4 20%, #f0f0f0 50%, #e8e8e8 52%, #eee 100%);
+    background-image: linear-gradient(to bottom, #f4f4f4 20%, #f0f0f0 50%, #e8e8e8 52%, #eee 100%);
 }
 html[dir="rtl"] .select2-container-multi .select2-choices .select2-search-choice
 {

kallithea/public/js/select2/select2.js

@@ -1,7 +1,7 b''
 /*
 Copyright 2012 Igor Vaynberg
 
-Version: 3.5.0 Timestamp: Mon Jun 16 19:29:44 EDT 2014
+Version: 3.5.4 Timestamp: Sun Aug 30 13:30:32 EDT 2015
 
 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
@@ -46,7 +46,7 b' the specific language governing permissi'
         return;
     }
 
-    var KEY, AbstractSelect2, SingleSelect2, MultiSelect2, nextUid, sizer,
+    var AbstractSelect2, SingleSelect2, MultiSelect2, nextUid, sizer,
         lastMousePosition={x:0,y:0}, $document, scrollBarDimensions,
 
     KEY = {
@@ -132,7 +132,7 b' the specific language governing permissi'
 
     function measureScrollbar () {
         var $template = $( MEASURE_SCROLLBAR_TEMPLATE );
-        $template.appendTo('body');
+        $template.appendTo(document.body);
 
         var dim = {
             width: $template.width() - $template[0].clientWidth,
@@ -160,16 +160,16 b' the specific language governing permissi'
     }
 
     /**
-     * Splits the string into an array of values, trimming each value. An empty array is returned for nulls or empty
+     * Splits the string into an array of values, transforming each value. An empty array is returned for nulls or empty
      * strings
      * @param string
      * @param separator
      */
-    function splitVal(string, separator) {
+    function splitVal(string, separator, transform) {
         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]);
+        for (i = 0, l = val.length; i < l; i = i + 1) val[i] = transform(val[i]);
         return val;
     }
 
@@ -311,7 +311,7 b' the specific language governing permissi'
                 whiteSpace: "nowrap"
             });
             sizer.attr("class","select2-sizer");
-            $("body").append(sizer);
+            $(document.body).append(sizer);
         }
         sizer.text(e.val());
         return sizer.width();
@@ -444,6 +444,16 b' the specific language governing permissi'
                         // added query as third paramter to keep backwards compatibility
                         var results = options.results(data, query.page, query);
                         query.callback(results);
+                    },
+                    error: function(jqXHR, textStatus, errorThrown){
+                        var results = {
+                            hasError: true,
+                            jqXHR: jqXHR,
+                            textStatus: textStatus,
+                            errorThrown: errorThrown
+                        };
+
+                        query.callback(results);
                     }
                 });
                 handler = transport.call(self, params);
@@ -689,12 +699,15 b' the specific language governing permissi'
 
             this.container = this.createContainer();
 
-            this.liveRegion = $("<span>", {
-                    role: "status",
-                    "aria-live": "polite"
-                })
-                .addClass("select2-hidden-accessible")
-                .appendTo(document.body);
+            this.liveRegion = $('.select2-hidden-accessible');
+            if (this.liveRegion.length == 0) {
+                this.liveRegion = $("<span>", {
+                        role: "status",
+                        "aria-live": "polite"
+                    })
+                    .addClass("select2-hidden-accessible")
+                    .appendTo(document.body);
+            }
 
             this.containerId="s2id_"+(opts.element.attr("id") || "autogen"+nextUid());
             this.containerEventName= this.containerId
@@ -704,7 +717,7 b' the specific language governing permissi'
 
             this.container.attr("title", opts.element.attr("title"));
 
-            this.body = $("body");
+            this.body = $(document.body);
 
             syncCssClasses(this.container, this.opts.element, this.opts.adaptContainerCssClass);
 
@@ -801,7 +814,7 b' the specific language governing permissi'
             // focusin can cause focus wars between modals and select2 since the dropdown is outside the modal.
             this.dropdown.on("click mouseup mousedown touchstart touchend focusin", function (e) { e.stopPropagation(); });
 
-            this.nextSearchTerm = undefined;
+            this.lastSearchTerm = undefined;
 
             if ($.isFunction(this.opts.initSelection)) {
                 // initialize selection based on the current value of the source element
@@ -836,13 +849,15 b' the specific language governing permissi'
 
         // abstract
         destroy: function () {
-            var element=this.opts.element, select2 = element.data("select2");
+            var element=this.opts.element, select2 = element.data("select2"), self = this;
 
             this.close();
 
-            if (element.length && element[0].detachEvent) {
+            if (element.length && element[0].detachEvent && self._sync) {
                 element.each(function () {
-                    this.detachEvent("onpropertychange", this._sync);
+                    if (self._sync) {
+                        this.detachEvent("onpropertychange", self._sync);
+                    }
                 });
             }
             if (this.propertyObserver) {
@@ -855,17 +870,21 b' the specific language governing permissi'
                 select2.container.remove();
                 select2.liveRegion.remove();
                 select2.dropdown.remove();
-                element
-                    .removeClass("select2-offscreen")
-                    .removeData("select2")
-                    .off(".select2")
-                    .prop("autofocus", this.autofocus || false);
-                if (this.elementTabIndex) {
-                    element.attr({tabindex: this.elementTabIndex});
+                element.removeData("select2")
+                    .off(".select2");
+                if (!element.is("input[type='hidden']")) {
+                    element
+                        .show()
+                        .prop("autofocus", this.autofocus || false);
+                    if (this.elementTabIndex) {
+                        element.attr({tabindex: this.elementTabIndex});
+                    } else {
+                        element.removeAttr("tabindex");
+                    }
+                    element.show();
                 } else {
-                    element.removeAttr("tabindex");
+                    element.css("display", "");
                 }
-                element.show();
             }
 
             cleanupJQueryElements.call(this,
@@ -917,6 +936,155 b' the specific language governing permissi'
                 });
             }
 
+            opts.debug = opts.debug || $.fn.select2.defaults.debug;
+
+            // Warnings for options renamed/removed in Select2 4.0.0
+            // Only when it's enabled through debug mode
+            if (opts.debug && console && console.warn) {
+                // id was removed
+                if (opts.id != null) {
+                    console.warn(
+                        'Select2: The `id` option has been removed in Select2 4.0.0, ' +
+                        'consider renaming your `id` property or mapping the property before your data makes it to Select2. ' +
+                        'You can read more at https://select2.github.io/announcements-4.0.html#changed-id'
+                    );
+                }
+
+                // text was removed
+                if (opts.text != null) {
+                    console.warn(
+                        'Select2: The `text` option has been removed in Select2 4.0.0, ' +
+                        'consider renaming your `text` property or mapping the property before your data makes it to Select2. ' +
+                        'You can read more at https://select2.github.io/announcements-4.0.html#changed-id'
+                    );
+                }
+
+                // sortResults was renamed to results
+                if (opts.sortResults != null) {
+                    console.warn(
+                        'Select2: the `sortResults` option has been renamed to `sorter` in Select2 4.0.0. '
+                    );
+                }
+
+                // selectOnBlur was renamed to selectOnClose
+                if (opts.selectOnBlur != null) {
+                    console.warn(
+                        'Select2: The `selectOnBlur` option has been renamed to `selectOnClose` in Select2 4.0.0.'
+                    );
+                }
+
+                // ajax.results was renamed to ajax.processResults
+                if (opts.ajax != null && opts.ajax.results != null) {
+                    console.warn(
+                        'Select2: The `ajax.results` option has been renamed to `ajax.processResults` in Select2 4.0.0.'
+                    );
+                }
+
+                // format* options were renamed to language.*
+                if (opts.formatNoResults != null) {
+                    console.warn(
+                        'Select2: The `formatNoResults` option has been renamed to `language.noResults` in Select2 4.0.0.'
+                    );
+                }
+                if (opts.formatSearching != null) {
+                    console.warn(
+                        'Select2: The `formatSearching` option has been renamed to `language.searching` in Select2 4.0.0.'
+                    );
+                }
+                if (opts.formatInputTooShort != null) {
+                    console.warn(
+                        'Select2: The `formatInputTooShort` option has been renamed to `language.inputTooShort` in Select2 4.0.0.'
+                    );
+                }
+                if (opts.formatInputTooLong != null) {
+                    console.warn(
+                        'Select2: The `formatInputTooLong` option has been renamed to `language.inputTooLong` in Select2 4.0.0.'
+                    );
+                }
+                if (opts.formatLoading != null) {
+                    console.warn(
+                        'Select2: The `formatLoading` option has been renamed to `language.loadingMore` in Select2 4.0.0.'
+                    );
+                }
+                if (opts.formatSelectionTooBig != null) {
+                    console.warn(
+                        'Select2: The `formatSelectionTooBig` option has been renamed to `language.maximumSelected` in Select2 4.0.0.'
+                    );
+                }
+
+                if (opts.element.data('select2Tags')) {
+                    console.warn(
+                        'Select2: The `data-select2-tags` attribute has been renamed to `data-tags` in Select2 4.0.0.'
+                    );
+                }
+            }
+
+            // Aliasing options renamed in Select2 4.0.0
+
+            // data-select2-tags -> data-tags
+            if (opts.element.data('tags') != null) {
+                var elemTags = opts.element.data('tags');
+
+                // data-tags should actually be a boolean
+                if (!$.isArray(elemTags)) {
+                    elemTags = [];
+                }
+
+                opts.element.data('select2Tags', elemTags);
+            }
+
+            // sortResults -> sorter
+            if (opts.sorter != null) {
+                opts.sortResults = opts.sorter;
+            }
+
+            // selectOnBlur -> selectOnClose
+            if (opts.selectOnClose != null) {
+                opts.selectOnBlur = opts.selectOnClose;
+            }
+
+            // ajax.results -> ajax.processResults
+            if (opts.ajax != null) {
+                if ($.isFunction(opts.ajax.processResults)) {
+                    opts.ajax.results = opts.ajax.processResults;
+                }
+            }
+
+            // Formatters/language options
+            if (opts.language != null) {
+                var lang = opts.language;
+
+                // formatNoMatches -> language.noMatches
+                if ($.isFunction(lang.noMatches)) {
+                    opts.formatNoMatches = lang.noMatches;
+                }
+
+                // formatSearching -> language.searching
+                if ($.isFunction(lang.searching)) {
+                    opts.formatSearching = lang.searching;
+                }
+
+                // formatInputTooShort -> language.inputTooShort
+                if ($.isFunction(lang.inputTooShort)) {
+                    opts.formatInputTooShort = lang.inputTooShort;
+                }
+
+                // formatInputTooLong -> language.inputTooLong
+                if ($.isFunction(lang.inputTooLong)) {
+                    opts.formatInputTooLong = lang.inputTooLong;
+                }
+
+                // formatLoading -> language.loadingMore
+                if ($.isFunction(lang.loadingMore)) {
+                    opts.formatLoading = lang.loadingMore;
+                }
+
+                // formatSelectionTooBig -> language.maximumSelected
+                if ($.isFunction(lang.maximumSelected)) {
+                    opts.formatSelectionTooBig = lang.maximumSelected;
+                }
+            }
+
             opts = $.extend({}, {
                 populateResults: function(container, results, query) {
                     var populate, id=this.opts.id, liveRegion=this.liveRegion;
@@ -960,7 +1128,6 b' the specific language governing permissi'
 
 
                             if (compound) {
-
                                 innerContainer=$("<ul></ul>");
                                 innerContainer.addClass("select2-result-sub");
                                 populate(result.children, innerContainer, depth+1);
@@ -1027,11 +1194,10 b' the specific language governing permissi'
 
                     query.callback(data);
                 });
-                // this is needed because inside val() we construct choices from options and there id is hardcoded
+                // this is needed because inside val() we construct choices from options and their id is hardcoded
                 opts.id=function(e) { return e.id; };
             } else {
                 if (!("query" in opts)) {
-
                     if ("ajax" in opts) {
                         ajaxUrl = opts.element.data("ajax-url");
                         if (ajaxUrl && ajaxUrl.length > 0) {
@@ -1048,7 +1214,7 b' the specific language governing permissi'
                         if (opts.initSelection === undefined) {
                             opts.initSelection = function (element, callback) {
                                 var data = [];
-                                $(splitVal(element.val(), opts.separator)).each(function () {
+                                $(splitVal(element.val(), opts.separator, opts.transformVal)).each(function () {
                                     var obj = { id: this, text: this },
                                         tags = opts.tags;
                                     if ($.isFunction(tags)) tags=tags();
@@ -1103,11 +1269,15 b' the specific language governing permissi'
                 if (readonly === undefined) readonly = false;
                 this.readonly(readonly);
 
-                syncCssClasses(this.container, this.opts.element, this.opts.adaptContainerCssClass);
-                this.container.addClass(evaluate(this.opts.containerCssClass, this.opts.element));
-
-                syncCssClasses(this.dropdown, this.opts.element, this.opts.adaptDropdownCssClass);
-                this.dropdown.addClass(evaluate(this.opts.dropdownCssClass, this.opts.element));
+                if (this.container) {
+                    syncCssClasses(this.container, this.opts.element, this.opts.adaptContainerCssClass);
+                    this.container.addClass(evaluate(this.opts.containerCssClass, this.opts.element));
+                }
+
+                if (this.dropdown) {
+                    syncCssClasses(this.dropdown, this.opts.element, this.opts.adaptDropdownCssClass);
+                    this.dropdown.addClass(evaluate(this.opts.dropdownCssClass, this.opts.element));
+                }
 
             });
 
@@ -1212,9 +1382,10 b' the specific language governing permissi'
         // abstract
         positionDropdown: function() {
             var $dropdown = this.dropdown,
-                offset = this.container.offset(),
-                height = this.container.outerHeight(false),
-                width = this.container.outerWidth(false),
+                container = this.container,
+                offset = container.offset(),
+                height = container.outerHeight(false),
+                width = container.outerWidth(false),
                 dropHeight = $dropdown.outerHeight(false),
                 $window = $(window),
                 windowWidth = $window.width(),
@@ -1226,7 +1397,12 b' the specific language governing permissi'
                 enoughRoomBelow = dropTop + dropHeight <= viewportBottom,
                 enoughRoomAbove = (offset.top - dropHeight) >= $window.scrollTop(),
                 dropWidth = $dropdown.outerWidth(false),
-                enoughRoomOnRight = dropLeft + dropWidth <= viewPortRight,
+                enoughRoomOnRight = function() {
+                    return dropLeft + dropWidth <= viewPortRight;
+                },
+                enoughRoomOnLeft = function() {
+                    return offset.left + viewPortRight + container.outerWidth(false)  > dropWidth;
+                },
                 aboveNow = $dropdown.hasClass("select2-drop-above"),
                 bodyOffset,
                 above,
@@ -1261,7 +1437,6 b' the specific language governing permissi'
                 dropTop = offset.top + height;
                 dropLeft = offset.left;
                 dropWidth = $dropdown.outerWidth(false);
-                enoughRoomOnRight = dropLeft + dropWidth <= viewPortRight;
                 $dropdown.show();
 
                 // fix so the cursor does not move to the left within the search-textbox in IE
@@ -1276,7 +1451,6 b' the specific language governing permissi'
                 dropWidth = $dropdown.outerWidth(false) + (resultsListNode.scrollHeight === resultsListNode.clientHeight ? 0 : scrollBarDimensions.width);
                 dropWidth > width ? width = dropWidth : dropWidth = width;
                 dropHeight = $dropdown.outerHeight(false);
-                enoughRoomOnRight = dropLeft + dropWidth <= viewPortRight;
             }
             else {
                 this.container.removeClass('select2-drop-auto-width');
@@ -1292,7 +1466,7 b' the specific language governing permissi'
                 dropLeft -= bodyOffset.left;
             }
 
-            if (!enoughRoomOnRight) {
+            if (!enoughRoomOnRight() && enoughRoomOnLeft()) {
                 dropLeft = offset.left + this.container.outerWidth(false) - dropWidth;
             }
 
@@ -1302,10 +1476,11 b' the specific language governing permissi'
             };
 
             if (above) {
+                this.container.addClass("select2-drop-above");
+                $dropdown.addClass("select2-drop-above");
+                dropHeight = $dropdown.outerHeight(false);
                 css.top = offset.top - dropHeight;
                 css.bottom = 'auto';
-                this.container.addClass("select2-drop-above");
-                $dropdown.addClass("select2-drop-above");
             }
             else {
                 css.top = dropTop;
@@ -1381,7 +1556,7 b' the specific language governing permissi'
 
             // create the dropdown mask if doesn't already exist
             mask = $("#select2-drop-mask");
-            if (mask.length == 0) {
+            if (mask.length === 0) {
                 mask = $(document.createElement("div"));
                 mask.attr("id","select2-drop-mask").attr("class","select2-drop-mask");
                 mask.hide();
@@ -1458,6 +1633,9 b' the specific language governing permissi'
 
             this.clearSearch();
             this.search.removeClass("select2-active");
+
+            // Remove the aria active descendant for highlighted element
+            this.search.removeAttr("aria-activedescendant");
             this.opts.element.trigger($.Event("select2-close"));
         },
 
@@ -1476,6 +1654,27 b' the specific language governing permissi'
 
         },
 
+        /**
+         * @return {Boolean} Whether or not search value was changed.
+         * @private
+         */
+        prefillNextSearchTerm: function () {
+            // initializes search's value with nextSearchTerm (if defined by user)
+            // ignore nextSearchTerm if the dropdown is opened by the user pressing a letter
+            if(this.search.val() !== "") {
+                return false;
+            }
+
+            var nextSearchTerm = this.opts.nextSearchTerm(this.data(), this.lastSearchTerm);
+            if(nextSearchTerm !== undefined){
+                this.search.val(nextSearchTerm);
+                this.search.select();
+                return true;
+            }
+
+            return false;
+        },
+
         //abstract
         getMaximumSelectionSize: function() {
             return evaluate(this.opts.maximumSelectionSize, this.opts.element);
@@ -1515,7 +1714,7 b' the specific language governing permissi'
                 }
             }
 
-            rb = results.offset().top + results.outerHeight(true);
+            rb = results.offset().top + results.outerHeight(false);
             if (hb > rb) {
                 results.scrollTop(results.scrollTop() + (hb - rb));
             }
@@ -1638,7 +1837,7 b' the specific language governing permissi'
                     self.postprocessResults(data, false, false);
 
                     if (data.more===true) {
-                        more.detach().appendTo(results).text(evaluate(self.opts.formatLoadMore, self.opts.element, page+1));
+                        more.detach().appendTo(results).html(self.opts.escapeMarkup(evaluate(self.opts.formatLoadMore, self.opts.element, page+1)));
                         window.setTimeout(function() { self.loadMoreIfNeeded(); }, 10);
                     } else {
                         more.remove();
@@ -1691,7 +1890,7 b' the specific language governing permissi'
                     self.liveRegion.text(results.text());
                 }
                 else {
-                    self.liveRegion.text(self.opts.formatMatches(results.find('.select2-result-selectable').length));
+                    self.liveRegion.text(self.opts.formatMatches(results.find('.select2-result-selectable:not(".select2-selected")').length));
                 }
             }
 
@@ -1766,6 +1965,12 b' the specific language governing permissi'
                     return;
                 }
 
+                // handle ajax error
+                if(data.hasError !== undefined && checkFormatter(opts.formatAjaxError, "formatAjaxError")) {
+                    render("<li class='select2-ajax-error'>" + evaluate(opts.formatAjaxError, opts.element, data.jqXHR, data.textStatus, data.errorThrown) + "</li>");
+                    return;
+                }
+
                 // save context, if any
                 this.context = (data.context===undefined) ? null : data.context;
                 // create a default choice and prepend it to the list
@@ -1783,6 +1988,9 b' the specific language governing permissi'
 
                 if (data.results.length === 0 && checkFormatter(opts.formatNoMatches, "formatNoMatches")) {
                     render("<li class='select2-no-results'>" + evaluate(opts.formatNoMatches, opts.element, search.val()) + "</li>");
+                    if(this.showSearch){
+                        this.showSearch(search.val());
+                    }
                     return;
                 }
 
@@ -1887,7 +2095,7 b' the specific language governing permissi'
                 } 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) {
+                    if (typeof(style) === "string") {
                         attrs = style.split(';');
                         for (i = 0, l = attrs.length; i < l; i = i + 1) {
                             attr = attrs[i].replace(/\s/g, '');
@@ -1986,14 +2194,7 b' the specific language governing permissi'
                 }
             }
 
-            // initializes search's value with nextSearchTerm (if defined by user)
-            // ignore nextSearchTerm if the dropdown is opened by the user pressing a letter
-            if(this.search.val() === "") {
-                if(this.nextSearchTerm != undefined){
-                    this.search.val(this.nextSearchTerm);
-                    this.search.select();
-                }
-            }
+            this.prefillNextSearchTerm();
 
             this.focusser.prop("disabled", true).val("");
             this.updateResults(true);
@@ -2080,6 +2281,7 b' the specific language governing permissi'
             this.focusser.attr("id", "s2id_autogen"+idSuffix);
 
             elementLabel = $("label[for='" + this.opts.element.attr("id") + "']");
+            this.opts.element.on('focus.select2', this.bind(function () { this.focus(); }));
 
             this.focusser.prev()
                 .text(elementLabel.text())
@@ -2101,6 +2303,9 b' the specific language governing permissi'
             this.search.on("keydown", this.bind(function (e) {
                 if (!this.isInterfaceEnabled()) return;
 
+                // filter 229 keyCodes (input method editor is processing key input)
+                if (229 == e.keyCode) return;
+
                 if (e.which === KEY.PAGE_UP || e.which === KEY.PAGE_DOWN) {
                     // prevent the page from scrolling
                     killEvent(e);
@@ -2132,7 +2337,7 b' the specific language governing permissi'
                 // without this the search field loses focus which is annoying
                 if (document.activeElement === this.body.get(0)) {
                     window.setTimeout(this.bind(function() {
-                        if (this.opened()) {
+                        if (this.opened() && this.results && this.results.length > 1) {
                             this.search.focus();
                         }
                     }), 0);
@@ -2181,11 +2386,17 b' the specific language governing permissi'
             }));
 
             selection.on("mousedown touchstart", "abbr", this.bind(function (e) {
-                if (!this.isInterfaceEnabled()) return;
+                if (!this.isInterfaceEnabled()) {
+                    return;
+                }
+
                 this.clear();
                 killEventImmediately(e);
                 this.close();
-                this.selection.focus();
+
+                if (this.selection) {
+                    this.selection.focus();
+                }
             }));
 
             selection.on("mousedown touchstart", this.bind(function (e) {
@@ -2234,7 +2445,7 b' the specific language governing permissi'
             }));
 
             this.initContainerWidth();
-            this.opts.element.addClass("select2-offscreen");
+            this.opts.element.hide();
             this.setPlaceholder();
 
         },
@@ -2278,7 +2489,7 b' the specific language governing permissi'
                         self.updateSelection(selected);
                         self.close();
                         self.setPlaceholder();
-                        self.nextSearchTerm = self.opts.nextSearchTerm(selected, self.search.val());
+                        self.lastSearchTerm = self.search.val();
                     }
                 });
             }
@@ -2415,7 +2626,7 b' the specific language governing permissi'
 
             this.opts.element.trigger({ type: "select2-selected", val: this.id(data), choice: data });
 
-            this.nextSearchTerm = this.opts.nextSearchTerm(data, this.search.val());
+            this.lastSearchTerm = this.search.val();
             this.close();
 
             if ((!options || !options.noFocus) && this.opts.shouldFocusInput(this)) {
@@ -2469,9 +2680,23 b' the specific language governing permissi'
 
             if (arguments.length > 1) {
                 triggerChange = arguments[1];
+
+                if (this.opts.debug && console && console.warn) {
+                    console.warn(
+                        'Select2: The second option to `select2("val")` is not supported in Select2 4.0.0. ' +
+                        'The `change` event will always be triggered in 4.0.0.'
+                    );
+                }
             }
 
             if (this.select) {
+                if (this.opts.debug && console && console.warn) {
+                    console.warn(
+                        'Select2: Setting the value on a <select> using `select2("val")` is no longer supported in 4.0.0. ' +
+                        'You can use the `.val(newValue).trigger("change")` method provided by jQuery instead.'
+                    );
+                }
+
                 this.select
                     .val(val)
                     .find("option").filter(function() { return this.selected }).each2(function (i, elm) {
@@ -2520,6 +2745,13 b' the specific language governing permissi'
                 if (data == undefined) data = null;
                 return data;
             } else {
+                if (this.opts.debug && console && console.warn) {
+                    console.warn(
+                        'Select2: The `select2("data")` method can no longer set selected values in 4.0.0, ' +
+                        'consider using the `.val()` method instead.'
+                    );
+                }
+
                 if (arguments.length > 1) {
                     triggerChange = arguments[1];
                 }
@@ -2563,7 +2795,6 b' the specific language governing permissi'
                 self=this;
 
             // TODO validate placeholder is a string if specified
-
             if (opts.element.get(0).tagName.toLowerCase() === "select") {
                 // install the selection initializer
                 opts.initSelection = function (element, callback) {
@@ -2578,7 +2809,7 b' the specific language governing permissi'
             } 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);
+                    var ids = splitVal(element.val(), opts.separator, opts.transformVal);
                     //search in data by array of ids, storing matching items in a list
                     var matches = [];
                     opts.query({
@@ -2655,8 +2886,7 b' the specific language governing permissi'
             this.selection = selection = this.container.find(selector);
 
             var _this = this;
-            this.selection.on("click", ".select2-search-choice:not(.select2-locked)", function (e) {
-                //killEvent(e);
+            this.selection.on("click", ".select2-container:not(.select2-container-disabled) .select2-search-choice:not(.select2-locked)", function (e) {
                 _this.search[0].focus();
                 _this.selectChoice($(this));
             });
@@ -2667,6 +2897,7 b' the specific language governing permissi'
             this.search.prev()
                 .text($("label[for='" + this.opts.element.attr("id") + "']").text())
                 .attr('for', this.search.attr('id'));
+            this.opts.element.on('focus.select2', this.bind(function () { this.focus(); }));
 
             this.search.on("input paste", this.bind(function() {
                 if (this.search.attr('placeholder') && this.search.val().length == 0) return;
@@ -2818,7 +3049,7 b' the specific language governing permissi'
             }));
 
             this.initContainerWidth();
-            this.opts.element.addClass("select2-offscreen");
+            this.opts.element.hide();
 
             // set the placeholder if necessary
             this.clearSearch();
@@ -2884,16 +3115,9 b' the specific language governing permissi'
 
             this.focusSearch();
 
-            // initializes search's value with nextSearchTerm (if defined by user)
-            // ignore nextSearchTerm if the dropdown is opened by the user pressing a letter
-            if(this.search.val() === "") {
-                if(this.nextSearchTerm != undefined){
-                    this.search.val(this.nextSearchTerm);
-                    this.search.select();
-                }
-            }
-
+            this.prefillNextSearchTerm();
             this.updateResults(true);
+
             if (this.opts.shouldFocusInput(this)) {
                 this.search.focus();
             }
@@ -2919,21 +3143,18 b' the specific language governing permissi'
 
         // multi
         updateSelection: function (data) {
-            var ids = [], filtered = [], self = this;
+            var ids = {}, filtered = [], self = this;
 
             // filter out duplicates
             $(data).each(function () {
-                if (indexOf(self.id(this), ids) < 0) {
-                    ids.push(self.id(this));
+                if (!(self.id(this) in ids)) {
+                    ids[self.id(this)] = 0;
                     filtered.push(this);
                 }
             });
-            data = filtered;
 
             this.selection.find(".select2-search-choice").remove();
-            $(data).each(function () {
-                self.addSelectedChoice(this);
-            });
+            this.addSelectedChoice(filtered);
             self.postprocessResults();
         },
 
@@ -2953,14 +3174,14 b' the specific language governing permissi'
         // multi
         onSelect: function (data, options) {
 
-            if (!this.triggerSelect(data)) { return; }
+            if (!this.triggerSelect(data) || data.text === "") { return; }
 
             this.addSelectedChoice(data);
 
             this.opts.element.trigger({ type: "selected", val: this.id(data), choice: data });
 
             // keep track of the search's value before it gets cleared
-            this.nextSearchTerm = this.opts.nextSearchTerm(data, this.search.val());
+            this.lastSearchTerm = this.search.val();
 
             this.clearSearch();
             this.updateResults();
@@ -2980,10 +3201,8 b' the specific language governing permissi'
                         this.updateResults(true);
                     } else {
                         // initializes search's value with nextSearchTerm and update search result
-                        if(this.nextSearchTerm != undefined){
-                            this.search.val(this.nextSearchTerm);
+                        if (this.prefillNextSearchTerm()) {
                             this.updateResults();
-                            this.search.select();
                         }
                     }
                     this.positionDropdown();
@@ -3009,6 +3228,14 b' the specific language governing permissi'
         },
 
         addSelectedChoice: function (data) {
+            var val = this.getVal(), self = this;
+            $(data).each(function () {
+                val.push(self.createChoice(this));
+            });
+            this.setVal(val);
+        },
+
+        createChoice: function (data) {
             var enableChoice = !data.locked,
                 enabledItem = $(
                     "<li class='select2-search-choice'>" +
@@ -3021,13 +3248,12 b' the specific language governing permissi'
                     "</li>");
             var choice = enableChoice ? enabledItem : disabledItem,
                 id = this.id(data),
-                val = this.getVal(),
                 formatted,
                 cssClass;
 
             formatted=this.opts.formatSelection(data, choice.find("div"), this.opts.escapeMarkup);
             if (formatted != undefined) {
-                choice.find("div").replaceWith("<div>"+formatted+"</div>");
+                choice.find("div").replaceWith($("<div></div>").html(formatted));
             }
             cssClass=this.opts.formatSelectionCssClass(data, choice.find("div"));
             if (cssClass != undefined) {
@@ -3055,8 +3281,7 b' the specific language governing permissi'
             choice.data("select2-data", data);
             choice.insertBefore(this.searchContainer);
 
-            val.push(id);
-            this.setVal(val);
+            return id;
         },
 
         // multi
@@ -3125,7 +3350,7 b' the specific language governing permissi'
                 }
             });
 
-            if (this.highlight() == -1 && noHighlightUpdate !== false){
+            if (this.highlight() == -1 && noHighlightUpdate !== false && this.opts.closeOnSelect === true){
                 self.highlight(0);
             }
 
@@ -3182,20 +3407,22 b' the specific language governing permissi'
                 return val === null ? [] : val;
             } else {
                 val = this.opts.element.val();
-                return splitVal(val, this.opts.separator);
+                return splitVal(val, this.opts.separator, this.opts.transformVal);
             }
         },
 
         // multi
         setVal: function (val) {
-            var unique;
             if (this.select) {
                 this.select.val(val);
             } else {
-                unique = [];
+                var unique = [], valMap = {};
                 // filter out duplicates
                 $(val).each(function () {
-                    if (indexOf(this, unique) < 0) unique.push(this);
+                    if (!(this in valMap)) {
+                        unique.push(this);
+                        valMap[this] = 0;
+                    }
                 });
                 this.opts.element.val(unique.length === 0 ? "" : unique.join(this.opts.separator));
             }
@@ -3211,11 +3438,9 b' the specific language governing permissi'
                 for (var j = 0; j < old.length; j++) {
                     if (equal(this.opts.id(current[i]), this.opts.id(old[j]))) {
                         current.splice(i, 1);
-                        if(i>0){
-                        	i--;
-                        }
+                        i--;
                         old.splice(j, 1);
-                        j--;
+                        break;
                     }
                 }
             }
@@ -3385,6 +3610,7 b' the specific language governing permissi'
 
     // plugin defaults, accessible to users
     $.fn.select2.defaults = {
+        debug: false,
         width: "copy",
         loadMorePadding: 0,
         closeOnSelect: true,
@@ -3395,29 +3621,36 b' the specific language governing permissi'
         dropdownCssClass: "",
         formatResult: function(result, container, query, escapeMarkup) {
             var markup=[];
-            markMatch(result.text, query.term, markup, escapeMarkup);
+            markMatch(this.text(result), query.term, markup, escapeMarkup);
             return markup.join("");
         },
+        transformVal: function(val) {
+            return $.trim(val);
+        },
         formatSelection: function (data, container, escapeMarkup) {
-            return data ? escapeMarkup(data.text) : undefined;
+            return data ? escapeMarkup(this.text(data)) : undefined;
         },
         sortResults: function (results, container, query) {
             return results;
         },
         formatResultCssClass: function(data) {return data.css;},
         formatSelectionCssClass: function(data, container) {return undefined;},
-        formatMatches: function (matches) { if (matches === 1) { return "One result is available, press enter to select it."; } return matches + " results are available, use up and down arrow keys to navigate."; },
-        formatNoMatches: function () { return "No matches found"; },
-        formatInputTooShort: function (input, min) { var n = min - input.length; return "Please enter " + n + " or more character" + (n == 1? "" : "s"); },
-        formatInputTooLong: function (input, max) { var n = input.length - max; return "Please delete " + n + " character" + (n == 1? "" : "s"); },
-        formatSelectionTooBig: function (limit) { return "You can only select " + limit + " item" + (limit == 1 ? "" : "s"); },
-        formatLoadMore: function (pageNumber) { return "Loading more results…"; },
-        formatSearching: function () { return "Searching…"; },
         minimumResultsForSearch: 0,
         minimumInputLength: 0,
         maximumInputLength: null,
         maximumSelectionSize: 0,
         id: function (e) { return e == undefined ? null : e.id; },
+        text: function (e) {
+          if (e && this.data && this.data.text) {
+            if ($.isFunction(this.data.text)) {
+              return this.data.text(e);
+            } else {
+              return e[this.data.text];
+            }
+          } else {
+            return e.text;
+          }
+        },
         matcher: function(term, text) {
             return stripDiacritics(''+text).toUpperCase().indexOf(stripDiacritics(''+term).toUpperCase()) >= 0;
         },
@@ -3451,6 +3684,21 b' the specific language governing permissi'
         }
     };
 
+    $.fn.select2.locales = [];
+
+    $.fn.select2.locales['en'] = {
+         formatMatches: function (matches) { if (matches === 1) { return "One result is available, press enter to select it."; } return matches + " results are available, use up and down arrow keys to navigate."; },
+         formatNoMatches: function () { return "No matches found"; },
+         formatAjaxError: function (jqXHR, textStatus, errorThrown) { return "Loading failed"; },
+         formatInputTooShort: function (input, min) { var n = min - input.length; return "Please enter " + n + " or 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…"; }
+    };
+
+    $.extend($.fn.select2.defaults, $.fn.select2.locales['en']);
+
     $.fn.select2.ajaxDefaults = {
         transport: $.ajax,
         params: {