diff --git a/lib/amd/build/form-autocomplete.min.js b/lib/amd/build/form-autocomplete.min.js
index 45a80ae119b48..7de1001e13757 100644
--- a/lib/amd/build/form-autocomplete.min.js
+++ b/lib/amd/build/form-autocomplete.min.js
@@ -1,2 +1,2 @@
-define ("core/form-autocomplete",["jquery","core/log","core/str","core/templates","core/notification","core/loadingicon"],function(a,b,c,d,f,g){var h={DOWN:40,ENTER:13,SPACE:32,ESCAPE:27,COMMA:44,UP:38},i=Date.now(),j=function(b,c){var d=a(document.getElementById(c.selectionId)),e=d.children("[aria-selected=true]").length;b=b%e;while(0>b){b+=e}var f=a(d.children("[aria-selected=true]").get(b)),g=c.selectionId+"-"+b;d.children().attr("data-active-selection",!1).attr("id","");f.attr("data-active-selection",!0).attr("id",g);d.attr("aria-activedescendant",g);return a.Deferred().resolve()},k=function(b,c,e){var g="form-autocomplete-updateSelectionList-"+c.inputId;M.util.js_pending(g);var h=[],i=a(document.getElementById(c.selectionId)),k=i.attr("aria-activedescendant"),l=!1;if(k){l=a(document.getElementById(k)).attr("data-value")}e.children("option").each(function(b,c){if(a(c).prop("selected")){var d;if(a(c).data("html")){d=a(c).data("html")}else{d=a(c).html()}if(""!==d){h.push({label:d,value:a(c).attr("value")})}}});var m=a.extend({items:h},b,c);return d.render("core/form_autocomplete_selection",m).then(function(b,e){d.replaceNodeContents(i,b,e);if(!1!==l){i.children("[aria-selected=true]").each(function(b,d){if(a(d).attr("data-value")===l){j(b,c)}})}return l}).then(function(){return M.util.js_complete(g)}).catch(f.exception)},l=function(a){if("undefined"!=typeof M.core_formchangechecker){M.core_formchangechecker.set_form_changed()}a.change()},m=function(b,c,d,e){var f=a(d).attr("data-value");e.children("option").each(function(b,c){if(a(c).attr("value")==f){a(c).prop("selected",!1);if(a(c).attr("data-iscustom")){a(c).remove()}}});return k(b,c,e).then(function(){l(e)})},n=function(b,c){var d=a(document.getElementById(c.inputId)),e=a(document.getElementById(c.suggestionsId)),f=e.children("[aria-hidden=false]").length;b=b%f;while(0>b){b+=f}var g=a(e.children("[aria-hidden=false]").get(b)),h=a(e.children("[role=option]")).index(g),i=c.suggestionsId+"-"+h;e.children().attr("aria-selected",!1).attr("id","");g.attr("aria-selected",!0).attr("id",i);d.attr("aria-activedescendant",i);var j=g.offset().top-e.offset().top+e.scrollTop()-e.height()/2;return e.animate({scrollTop:j},100).promise()},o=function(b){var c=a(document.getElementById(b.suggestionsId)),d=c.children("[aria-selected=true]"),e=c.children("[aria-hidden=false]").index(d);return n(e+1,b)},p=function(b){var c=a(document.getElementById(b.selectionId)),d=c.children("[data-active-selection=true]");if(!d){return j(0,b)}var e=c.children("[aria-selected=true]").index(d);return j(e-1,b)},q=function(b){var c=a(document.getElementById(b.selectionId)),d=c.children("[data-active-selection=true]"),e=0;if(d){e=c.children("[aria-selected=true]").index(d);e=e+1}else{e=0}return j(e,b)},r=function(b){var c=a(document.getElementById(b.suggestionsId)),d=c.children("[aria-selected=true]"),e=c.children("[aria-hidden=false]").index(d);return n(e-1,b)},s=function(b){var c=a(document.getElementById(b.inputId)),d=a(document.getElementById(b.suggestionsId));c.attr("aria-expanded",!1).attr("aria-activedescendant",b.selectionId);d.hide().attr("aria-hidden",!0);return a.Deferred().resolve()},t=function(b,e,g,h){var i="form-autocomplete-updateSuggestions-"+e.inputId;M.util.js_pending(i);var j=a(document.getElementById(e.inputId)),k=a(document.getElementById(e.suggestionsId)),l=!1,m=[];h.children("option").each(function(b,c){if(!0!==a(c).prop("selected")){m[m.length]={label:c.innerHTML,value:a(c).attr("value")}}});var o=e.caseSensitive?g:g.toLocaleLowerCase(),p=a.extend({options:m},b,e),q=d.render("core/form_autocomplete_suggestions",p).then(function(f,g){d.replaceNode(k,f,g);k=a(document.getElementById(e.suggestionsId));k.show().attr("aria-hidden",!1);k.children().each(function(c,d){d=a(d);if(b.caseSensitive&&-1<d.text().indexOf(o)||!b.caseSensitive&&-1<d.text().toLocaleLowerCase().indexOf(o)){d.show().attr("aria-hidden",!1);l=!0}else{d.hide().attr("aria-hidden",!0)}});j.attr("aria-expanded",!0);if(h.attr("data-notice")){k.html(h.attr("data-notice"))}else if(l){if(!b.tags){n(0,e)}}else{c.get_string("nosuggestions","form").done(function(a){k.html(a)})}return k}).then(function(){return M.util.js_complete(i)}).catch(f.exception);return q},u=function(b,c,d){var e=a(document.getElementById(c.inputId)),f=e.val(),g=f.split(","),h=!1;a.each(g,function(c,e){e=e.trim();if(""!==e){if(!b.multiple){d.children("option").prop("selected",!1)}d.children("option").each(function(b,c){if(a(c).attr("value")==e){h=!0;a(c).prop("selected",!0)}});if(!h){var f=a("<option>");f.append(document.createTextNode(e));f.attr("value",e);d.append(f);f.prop("selected",!0);f.attr("data-iscustom",!0)}}});return k(b,c,d).then(function(){l(d)}).then(function(){e.val("")}).then(function(){return s(c)})},v=function(b,c,d){var e=a(document.getElementById(c.inputId)),f=a(document.getElementById(c.suggestionsId)),g=f.children("[aria-selected=true]").attr("data-value");if(!b.multiple){d.children("option").prop("selected",!1)}d.children("option").each(function(b,c){if(a(c).attr("value")==g){a(c).prop("selected",!0)}});return k(b,c,d).then(function(){l(d)}).then(function(){if(b.closeSuggestionsOnSelect){e.val("");return s(c)}else{e.focus();return t(b,c,e.val(),d)}})},w=function(b,c,d,e,f){var h=y("updateAjax"),i=a(document.getElementById(d.selectId)).parent();g.addIconToContainerRemoveOnCompletion(i,h);var j=a(b.currentTarget).val();f.transport(c.selector,j,function(b){var g=f.processResults(c.selector,b),i=[];if(!c.multiple){e.children("option").remove()}e.children("option").each(function(b,c){c=a(c);if(!c.prop("selected")){c.remove()}else{i.push(c.attr("value")+"")}});if(!c.multiple&&0===e.children("option").length){var j=a("<option>");e.append(j)}if(a.isArray(g)){a.each(g,function(b,c){if(-1===i.indexOf(c.value+"")){var d=a("<option>");d.append(c.label);d.attr("value",c.value);e.append(d)}});e.attr("data-notice","")}else{e.attr("data-notice",g)}h.resolve(t(c,d,"",e))},function(a){h.reject(a)});return h},x=function(b,c,d){var g=a(document.getElementById(c.inputId));g.on("keydown",function(f){var e=y("addNavigation-"+c.inputId+"-"+f.keyCode);switch(f.keyCode){case h.DOWN:if(!b.showSuggestions){e.resolve();return!0}else if("true"===g.attr("aria-expanded")){e.resolve(o(c))}else{if(!g.val()&&b.ajax){require([b.ajax],function(a){e.resolve(w(f,b,c,d,a))})}else{e.resolve(t(b,c,g.val(),d))}}f.preventDefault();return!1;case h.UP:e.resolve(r(c));f.preventDefault();return!1;case h.ENTER:var i=a(document.getElementById(c.suggestionsId));if("true"===g.attr("aria-expanded")&&0<i.children("[aria-selected=true]").length){e.resolve(v(b,c,d))}else if(b.tags){e.resolve(u(b,c,d))}else{e.resolve()}f.preventDefault();return!1;case h.ESCAPE:if("true"===g.attr("aria-expanded")){e.resolve(s(c))}else{e.resolve()}f.preventDefault();return!1;}e.resolve();return!0});g.on("keypress",function(a){if(a.keyCode===h.COMMA){if(b.tags){y("keypress-"+a.keyCode).resolve(u(b,c,d))}a.preventDefault();return!1}return!0});g.closest("form").on("submit",function(){if(b.tags){y("form-autocomplete-submit").resolve(u(b,c,d))}return!0});g.on("blur",function(){var e=y("form-autocomplete-blur");window.setTimeout(function(){var f=a(document.activeElement),h=a.Deferred();if(f.is(document.getElementById(c.suggestionsId))){g.focus()}else if(!f.is(g)&&a(document.getElementById(c.inputId)).length){if(b.tags){h.then(function(){return u(b,c,d)}).catch()}h.then(function(){return s(c)}).catch()}h.then(function(){return e.resolve()}).catch();h.resolve()},500)});if(b.showSuggestions){var i=a(document.getElementById(c.downArrowId));i.on("click",function(a){var e=y("form-autocomplete-show-suggestions");g.focus();if(!g.val()&&b.ajax){require([b.ajax],function(f){e.resolve(w(a,b,c,d,f))})}else{e.resolve(t(b,c,g.val(),d))}})}var j=a(document.getElementById(c.suggestionsId));j.parent().prop("onclick",null).off("click");j.parent().on("click","[role=option]",function(f){var e=y("form-autocomplete-parent"),g=a(f.currentTarget).closest("[role=option]"),h=a(document.getElementById(c.suggestionsId)),i=h.children("[aria-hidden=false]").index(g);n(i,c).then(function(){return v(b,c,d)}).then(function(){return e.resolve()}).catch()});var k=a(document.getElementById(c.selectionId));k.on("click","[role=listitem]",function(f){var e=y("form-autocomplete-clicks");e.resolve(m(b,c,a(f.currentTarget),d))});k.on("keydown",function(f){var e=y("form-autocomplete-keydown-"+f.keyCode);switch(f.keyCode){case h.DOWN:f.preventDefault();e.resolve(q(c));return!1;case h.UP:f.preventDefault();e.resolve(p(c));return!1;case h.SPACE:case h.ENTER:var g=a(document.getElementById(c.selectionId)).children("[data-active-selection=true]");if(g){f.preventDefault();e.resolve(m(b,c,g,d))}return!1;}e.resolve();return!0});if(b.showSuggestions){if(b.ajax){require([b.ajax],function(a){var h=null,i=!1,j="autocomplete-throttledhandler",k=function(g){h=null;i=!0;w(g,b,c,d,a).then(function(){if(null===h){M.util.js_complete(j)}i=!1;return arguments[0]}).catch(f.exception)},l=function(a){window.clearTimeout(h);if(i){h=window.setTimeout(l.bind(this,a),100);return}if(null===h){M.util.js_pending(j)}h=window.setTimeout(k.bind(this,a),300)};g.on("input",l)})}else{g.on("input",function(f){var e=a(f.currentTarget).val(),g=a(f.currentTarget).data("last-value");if(g!==e){t(b,c,e,d)}a(f.currentTarget).data("last-value",e)})}}},y=function(b){var c="form-autocomplete:"+b;M.util.js_pending(c);var d=a.Deferred();d.then(function(){M.util.js_complete(c);return arguments[0]}).catch(f.exception);return d};return{enhance:function enhance(e,g,h,j,l,m,n,o){var p={selector:e,tags:!1,ajax:!1,placeholder:j,caseSensitive:!1,showSuggestions:!0,noSelectionString:n},q="autocomplete-setup-"+e;M.util.js_pending(q);if("undefined"!=typeof g){p.tags=g}if("undefined"!=typeof h){p.ajax=h}if("undefined"!=typeof l){p.caseSensitive=l}if("undefined"!=typeof m){p.showSuggestions=m}if("undefined"==typeof n){c.get_string("noselection","form").done(function(a){p.noSelectionString=a}).fail(f.exception)}var r=a(e);if(!r){b.debug("Selector not found: "+e);M.util.js_complete(q);return!1}r.css("visibility","hidden").attr("aria-hidden",!0);var s={selectId:r.attr("id"),inputId:"form_autocomplete_input-"+i,suggestionsId:"form_autocomplete_suggestions-"+i,selectionId:"form_autocomplete_selection-"+i,downArrowId:"form_autocomplete_downarrow-"+i};i++;p.multiple=r.attr("multiple");if("undefined"!=typeof o){p.closeSuggestionsOnSelect=o}else{p.closeSuggestionsOnSelect=!p.multiple}var t=a("[for="+s.selectId+"]"),u=[];r.children("option").each(function(b,c){u[b]={label:c.innerHTML,value:a(c).attr("value")}});var v=a.extend({},p,s);v.options=u;v.items=[];var w="",y=d.render("core/form_autocomplete_input",v).then(function(a,b){w+=b;return a}),z=d.render("core/form_autocomplete_suggestions",v).then(function(a,b){w+=b;return a}),A=d.render("core/form_autocomplete_selection",v).then(function(a,b){w+=b;return a});return a.when(y,z,A).then(function(b,c,e){r.hide();r.after(c);r.after(b);r.after(e);d.runTemplateJS(w);t.attr("for",s.inputId);x(p,s,r);var f=a(document.getElementById(s.suggestionsId));f.hide().attr("aria-hidden",!0)}).then(function(){return k(p,s,r)}).then(function(){return M.util.js_complete(q)}).catch(function(a){M.util.js_complete(q);f.exception(a)})}}});
+define ("core/form-autocomplete",["jquery","core/log","core/str","core/templates","core/notification","core/loadingicon"],function(a,b,c,d,f,g){var h={DOWN:40,ENTER:13,SPACE:32,ESCAPE:27,COMMA:44,UP:38},i=Date.now(),j=function(b,c){var d=a(document.getElementById(c.selectionId)),e=d.children("[aria-selected=true]").length;b=b%e;while(0>b){b+=e}var f=a(d.children("[aria-selected=true]").get(b)),g=c.selectionId+"-"+b;d.children().attr("data-active-selection",!1).attr("id","");f.attr("data-active-selection",!0).attr("id",g);d.attr("aria-activedescendant",g);return a.Deferred().resolve()},k=function(b,c,e){var g="form-autocomplete-updateSelectionList-"+c.inputId;M.util.js_pending(g);var h=[],i=a(document.getElementById(c.selectionId)),k=i.attr("aria-activedescendant"),l=!1;if(k){l=a(document.getElementById(k)).attr("data-value")}e.children("option").each(function(b,c){if(a(c).prop("selected")){var d;if(a(c).data("html")){d=a(c).data("html")}else{d=a(c).html()}if(""!==d){h.push({label:d,value:a(c).attr("value")})}}});var m=a.extend({items:h},b,c);return d.render("core/form_autocomplete_selection_items",m).then(function(b,e){d.replaceNodeContents(i,b,e);if(!1!==l){i.children("[aria-selected=true]").each(function(b,d){if(a(d).attr("data-value")===l){j(b,c)}})}return l}).then(function(){return M.util.js_complete(g)}).catch(f.exception)},l=function(a){if("undefined"!=typeof M.core_formchangechecker){M.core_formchangechecker.set_form_changed()}a.change()},m=function(b,c,d,e){var f=a(d).attr("data-value");e.children("option").each(function(b,c){if(a(c).attr("value")==f){a(c).prop("selected",!1);if(a(c).attr("data-iscustom")){a(c).remove()}}});return k(b,c,e).then(function(){l(e)})},n=function(b,c){var d=a(document.getElementById(c.inputId)),e=a(document.getElementById(c.suggestionsId)),f=e.children("[aria-hidden=false]").length;b=b%f;while(0>b){b+=f}var g=a(e.children("[aria-hidden=false]").get(b)),h=a(e.children("[role=option]")).index(g),i=c.suggestionsId+"-"+h;e.children().attr("aria-selected",!1).attr("id","");g.attr("aria-selected",!0).attr("id",i);d.attr("aria-activedescendant",i);var j=g.offset().top-e.offset().top+e.scrollTop()-e.height()/2;return e.animate({scrollTop:j},100).promise()},o=function(b){var c=a(document.getElementById(b.suggestionsId)),d=c.children("[aria-selected=true]"),e=c.children("[aria-hidden=false]").index(d);return n(e+1,b)},p=function(b){var c=a(document.getElementById(b.selectionId)),d=c.children("[data-active-selection=true]");if(!d){return j(0,b)}var e=c.children("[aria-selected=true]").index(d);return j(e-1,b)},q=function(b){var c=a(document.getElementById(b.selectionId)),d=c.children("[data-active-selection=true]"),e=0;if(d){e=c.children("[aria-selected=true]").index(d);e=e+1}else{e=0}return j(e,b)},r=function(b){var c=a(document.getElementById(b.suggestionsId)),d=c.children("[aria-selected=true]"),e=c.children("[aria-hidden=false]").index(d);return n(e-1,b)},s=function(b){var c=a(document.getElementById(b.inputId)),d=a(document.getElementById(b.suggestionsId));c.attr("aria-expanded",!1).attr("aria-activedescendant",b.selectionId);d.hide().attr("aria-hidden",!0);return a.Deferred().resolve()},t=function(b,e,g,h){var i="form-autocomplete-updateSuggestions-"+e.inputId;M.util.js_pending(i);var j=a(document.getElementById(e.inputId)),k=a(document.getElementById(e.suggestionsId)),l=!1,m=[];h.children("option").each(function(b,c){if(!0!==a(c).prop("selected")){m[m.length]={label:c.innerHTML,value:a(c).attr("value")}}});var o=e.caseSensitive?g:g.toLocaleLowerCase(),p=a.extend({options:m},b,e),q=d.render("core/form_autocomplete_suggestions",p).then(function(f,g){d.replaceNode(k,f,g);k=a(document.getElementById(e.suggestionsId));k.show().attr("aria-hidden",!1);k.children().each(function(c,d){d=a(d);if(b.caseSensitive&&-1<d.text().indexOf(o)||!b.caseSensitive&&-1<d.text().toLocaleLowerCase().indexOf(o)){d.show().attr("aria-hidden",!1);l=!0}else{d.hide().attr("aria-hidden",!0)}});j.attr("aria-expanded",!0);if(h.attr("data-notice")){k.html(h.attr("data-notice"))}else if(l){if(!b.tags){n(0,e)}}else{c.get_string("nosuggestions","form").done(function(a){k.html(a)})}return k}).then(function(){return M.util.js_complete(i)}).catch(f.exception);return q},u=function(b,c,d){var e=a(document.getElementById(c.inputId)),f=e.val(),g=f.split(","),h=!1;a.each(g,function(c,e){e=e.trim();if(""!==e){if(!b.multiple){d.children("option").prop("selected",!1)}d.children("option").each(function(b,c){if(a(c).attr("value")==e){h=!0;a(c).prop("selected",!0)}});if(!h){var f=a("<option>");f.append(document.createTextNode(e));f.attr("value",e);d.append(f);f.prop("selected",!0);f.attr("data-iscustom",!0)}}});return k(b,c,d).then(function(){l(d)}).then(function(){e.val("")}).then(function(){return s(c)})},v=function(b,c,d){var e=a(document.getElementById(c.inputId)),f=a(document.getElementById(c.suggestionsId)),g=f.children("[aria-selected=true]").attr("data-value");if(!b.multiple){d.children("option").prop("selected",!1)}d.children("option").each(function(b,c){if(a(c).attr("value")==g){a(c).prop("selected",!0)}});return k(b,c,d).then(function(){l(d)}).then(function(){if(b.closeSuggestionsOnSelect){e.val("");return s(c)}else{e.focus();return t(b,c,e.val(),d)}})},w=function(b,c,d,e,f){var h=y("updateAjax"),i=a(document.getElementById(d.selectId)).parent();g.addIconToContainerRemoveOnCompletion(i,h);var j=a(b.currentTarget).val();f.transport(c.selector,j,function(b){var g=f.processResults(c.selector,b),i=[];if(!c.multiple){e.children("option").remove()}e.children("option").each(function(b,c){c=a(c);if(!c.prop("selected")){c.remove()}else{i.push(c.attr("value")+"")}});if(!c.multiple&&0===e.children("option").length){var j=a("<option>");e.append(j)}if(a.isArray(g)){a.each(g,function(b,c){if(-1===i.indexOf(c.value+"")){var d=a("<option>");d.append(c.label);d.attr("value",c.value);e.append(d)}});e.attr("data-notice","")}else{e.attr("data-notice",g)}h.resolve(t(c,d,"",e))},function(a){h.reject(a)});return h},x=function(b,c,d){var g=a(document.getElementById(c.inputId));g.on("keydown",function(f){var e=y("addNavigation-"+c.inputId+"-"+f.keyCode);switch(f.keyCode){case h.DOWN:if(!b.showSuggestions){e.resolve();return!0}else if("true"===g.attr("aria-expanded")){e.resolve(o(c))}else{if(!g.val()&&b.ajax){require([b.ajax],function(a){e.resolve(w(f,b,c,d,a))})}else{e.resolve(t(b,c,g.val(),d))}}f.preventDefault();return!1;case h.UP:e.resolve(r(c));f.preventDefault();return!1;case h.ENTER:var i=a(document.getElementById(c.suggestionsId));if("true"===g.attr("aria-expanded")&&0<i.children("[aria-selected=true]").length){e.resolve(v(b,c,d))}else if(b.tags){e.resolve(u(b,c,d))}else{e.resolve()}f.preventDefault();return!1;case h.ESCAPE:if("true"===g.attr("aria-expanded")){e.resolve(s(c))}else{e.resolve()}f.preventDefault();return!1;}e.resolve();return!0});g.on("keypress",function(a){if(a.keyCode===h.COMMA){if(b.tags){y("keypress-"+a.keyCode).resolve(u(b,c,d))}a.preventDefault();return!1}return!0});g.closest("form").on("submit",function(){if(b.tags){y("form-autocomplete-submit").resolve(u(b,c,d))}return!0});g.on("blur",function(){var e=y("form-autocomplete-blur");window.setTimeout(function(){var f=a(document.activeElement),h=a.Deferred();if(f.is(document.getElementById(c.suggestionsId))){g.focus()}else if(!f.is(g)&&a(document.getElementById(c.inputId)).length){if(b.tags){h.then(function(){return u(b,c,d)}).catch()}h.then(function(){return s(c)}).catch()}h.then(function(){return e.resolve()}).catch();h.resolve()},500)});if(b.showSuggestions){var i=a(document.getElementById(c.downArrowId));i.on("click",function(a){var e=y("form-autocomplete-show-suggestions");g.focus();if(!g.val()&&b.ajax){require([b.ajax],function(f){e.resolve(w(a,b,c,d,f))})}else{e.resolve(t(b,c,g.val(),d))}})}var j=a(document.getElementById(c.suggestionsId));j.parent().prop("onclick",null).off("click");j.parent().on("click","[role=option]",function(f){var e=y("form-autocomplete-parent"),g=a(f.currentTarget).closest("[role=option]"),h=a(document.getElementById(c.suggestionsId)),i=h.children("[aria-hidden=false]").index(g);n(i,c).then(function(){return v(b,c,d)}).then(function(){return 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diff --git a/lib/amd/build/form-autocomplete.min.js.map b/lib/amd/build/form-autocomplete.min.js.map
index 2a0d46878a340..98beddaaaddd3 100644
--- a/lib/amd/build/form-autocomplete.min.js.map
+++ b/lib/amd/build/form-autocomplete.min.js.map
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This file is part of Moodle - http://moodle.org/\n//\n// Moodle is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// Moodle is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.\n\n/**\n * Autocomplete wrapper for select2 library.\n *\n * @module     core/form-autocomplete\n * @class      autocomplete\n * @package    core\n * @copyright  2015 Damyon Wiese <damyon@moodle.com>\n * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later\n * @since      3.0\n */\n/* globals require: false */\ndefine(\n    ['jquery', 'core/log', 'core/str', 'core/templates', 'core/notification', 'core/loadingicon'],\nfunction($, log, str, templates, notification, LoadingIcon) {\n\n    // Private functions and variables.\n    /** @var {Object} KEYS - List of keycode constants. */\n    var KEYS = {\n        DOWN: 40,\n        ENTER: 13,\n        SPACE: 32,\n        ESCAPE: 27,\n        COMMA: 44,\n        UP: 38\n    };\n\n    var uniqueId = Date.now();\n\n    /**\n     * Make an item in the selection list \"active\".\n     *\n     * @method activateSelection\n     * @private\n     * @param {Number} index The index in the current (visible) list of selection.\n     * @param {Object} state State variables for this autocomplete element.\n     * @return {Promise}\n     */\n    var activateSelection = function(index, state) {\n        // Find the elements in the DOM.\n        var selectionElement = $(document.getElementById(state.selectionId));\n\n        // Count the visible items.\n        var length = selectionElement.children('[aria-selected=true]').length;\n        // Limit the index to the upper/lower bounds of the list (wrap in both directions).\n        index = index % length;\n        while (index < 0) {\n            index += length;\n        }\n        // Find the specified element.\n        var element = $(selectionElement.children('[aria-selected=true]').get(index));\n        // Create an id we can assign to this element.\n        var itemId = state.selectionId + '-' + index;\n\n        // Deselect all the selections.\n        selectionElement.children().attr('data-active-selection', false).attr('id', '');\n        // Select only this suggestion and assign it the id.\n        element.attr('data-active-selection', true).attr('id', itemId);\n        // Tell the input field it has a new active descendant so the item is announced.\n        selectionElement.attr('aria-activedescendant', itemId);\n\n        return $.Deferred().resolve();\n    };\n\n    /**\n     * Update the element that shows the currently selected items.\n     *\n     * @method updateSelectionList\n     * @private\n     * @param {Object} options Original options for this autocomplete element.\n     * @param {Object} state State variables for this autocomplete element.\n     * @param {JQuery} originalSelect The JQuery object matching the hidden select list.\n     * @return {Promise}\n     */\n    var updateSelectionList = function(options, state, originalSelect) {\n        var pendingKey = 'form-autocomplete-updateSelectionList-' + state.inputId;\n        M.util.js_pending(pendingKey);\n\n        // Build up a valid context to re-render the template.\n        var items = [];\n        var newSelection = $(document.getElementById(state.selectionId));\n        var activeId = newSelection.attr('aria-activedescendant');\n        var activeValue = false;\n\n        if (activeId) {\n            activeValue = $(document.getElementById(activeId)).attr('data-value');\n        }\n        originalSelect.children('option').each(function(index, ele) {\n            if ($(ele).prop('selected')) {\n                var label;\n                if ($(ele).data('html')) {\n                    label = $(ele).data('html');\n                } else {\n                    label = $(ele).html();\n                }\n                if (label !== '') {\n                    items.push({label: label, value: $(ele).attr('value')});\n                }\n            }\n        });\n        var context = $.extend({items: items}, options, state);\n        // Render the template.\n        return templates.render('core/form_autocomplete_selection', context)\n        .then(function(html, js) {\n            // Add it to the page.\n            templates.replaceNodeContents(newSelection, html, js);\n\n            if (activeValue !== false) {\n                // Reselect any previously selected item.\n                newSelection.children('[aria-selected=true]').each(function(index, ele) {\n                    if ($(ele).attr('data-value') === activeValue) {\n                        activateSelection(index, state);\n                    }\n                });\n            }\n\n            return activeValue;\n        })\n        .then(function() {\n            return M.util.js_complete(pendingKey);\n        })\n        .catch(notification.exception);\n    };\n\n    /**\n     * Notify of a change in the selection.\n     *\n     * @param {jQuery} originalSelect The jQuery object matching the hidden select list.\n     */\n    var notifyChange = function(originalSelect) {\n        if (typeof M.core_formchangechecker !== 'undefined') {\n            M.core_formchangechecker.set_form_changed();\n        }\n        originalSelect.change();\n    };\n\n    /**\n     * Remove the given item from the list of selected things.\n     *\n     * @method deselectItem\n     * @private\n     * @param {Object} options Original options for this autocomplete element.\n     * @param {Object} state State variables for this autocomplete element.\n     * @param {Element} item The item to be deselected.\n     * @param {Element} originalSelect The original select list.\n     * @return {Promise}\n     */\n    var deselectItem = function(options, state, item, originalSelect) {\n        var selectedItemValue = $(item).attr('data-value');\n\n        // Look for a match, and toggle the selected property if there is a match.\n        originalSelect.children('option').each(function(index, ele) {\n            if ($(ele).attr('value') == selectedItemValue) {\n                $(ele).prop('selected', false);\n                // We remove newly created custom tags from the suggestions list when they are deselected.\n                if ($(ele).attr('data-iscustom')) {\n                    $(ele).remove();\n                }\n            }\n        });\n        // Rerender the selection list.\n        return updateSelectionList(options, state, originalSelect)\n        .then(function() {\n            // Notify that the selection changed.\n            notifyChange(originalSelect);\n\n            return;\n        });\n    };\n\n    /**\n     * Make an item in the suggestions \"active\" (about to be selected).\n     *\n     * @method activateItem\n     * @private\n     * @param {Number} index The index in the current (visible) list of suggestions.\n     * @param {Object} state State variables for this instance of autocomplete.\n     * @return {Promise}\n     */\n    var activateItem = function(index, state) {\n        // Find the elements in the DOM.\n        var inputElement = $(document.getElementById(state.inputId));\n        var suggestionsElement = $(document.getElementById(state.suggestionsId));\n\n        // Count the visible items.\n        var length = suggestionsElement.children('[aria-hidden=false]').length;\n        // Limit the index to the upper/lower bounds of the list (wrap in both directions).\n        index = index % length;\n        while (index < 0) {\n            index += length;\n        }\n        // Find the specified element.\n        var element = $(suggestionsElement.children('[aria-hidden=false]').get(index));\n        // Find the index of this item in the full list of suggestions (including hidden).\n        var globalIndex = $(suggestionsElement.children('[role=option]')).index(element);\n        // Create an id we can assign to this element.\n        var itemId = state.suggestionsId + '-' + globalIndex;\n\n        // Deselect all the suggestions.\n        suggestionsElement.children().attr('aria-selected', false).attr('id', '');\n        // Select only this suggestion and assign it the id.\n        element.attr('aria-selected', true).attr('id', itemId);\n        // Tell the input field it has a new active descendant so the item is announced.\n        inputElement.attr('aria-activedescendant', itemId);\n\n        // Scroll it into view.\n        var scrollPos = element.offset().top\n                       - suggestionsElement.offset().top\n                       + suggestionsElement.scrollTop()\n                       - (suggestionsElement.height() / 2);\n        return suggestionsElement.animate({\n            scrollTop: scrollPos\n        }, 100).promise();\n    };\n\n    /**\n     * Find the index of the current active suggestion, and activate the next one.\n     *\n     * @method activateNextItem\n     * @private\n     * @param {Object} state State variable for this auto complete element.\n     * @return {Promise}\n     */\n    var activateNextItem = function(state) {\n        // Find the list of suggestions.\n        var suggestionsElement = $(document.getElementById(state.suggestionsId));\n        // Find the active one.\n        var element = suggestionsElement.children('[aria-selected=true]');\n        // Find it's index.\n        var current = suggestionsElement.children('[aria-hidden=false]').index(element);\n        // Activate the next one.\n        return activateItem(current + 1, state);\n    };\n\n    /**\n     * Find the index of the current active selection, and activate the previous one.\n     *\n     * @method activatePreviousSelection\n     * @private\n     * @param {Object} state State variables for this instance of autocomplete.\n     * @return {Promise}\n     */\n    var activatePreviousSelection = function(state) {\n        // Find the list of selections.\n        var selectionsElement = $(document.getElementById(state.selectionId));\n        // Find the active one.\n        var element = selectionsElement.children('[data-active-selection=true]');\n        if (!element) {\n            return activateSelection(0, state);\n        }\n        // Find it's index.\n        var current = selectionsElement.children('[aria-selected=true]').index(element);\n        // Activate the next one.\n        return activateSelection(current - 1, state);\n    };\n\n    /**\n     * Find the index of the current active selection, and activate the next one.\n     *\n     * @method activateNextSelection\n     * @private\n     * @param {Object} state State variables for this instance of autocomplete.\n     * @return {Promise}\n     */\n    var activateNextSelection = function(state) {\n        // Find the list of selections.\n        var selectionsElement = $(document.getElementById(state.selectionId));\n\n        // Find the active one.\n        var element = selectionsElement.children('[data-active-selection=true]');\n        var current = 0;\n\n        if (element) {\n            // The element was found. Determine the index and move to the next one.\n            current = selectionsElement.children('[aria-selected=true]').index(element);\n            current = current + 1;\n        } else {\n            // No selected item found. Move to the first.\n            current = 0;\n        }\n\n        return activateSelection(current, state);\n    };\n\n    /**\n     * Find the index of the current active suggestion, and activate the previous one.\n     *\n     * @method activatePreviousItem\n     * @private\n     * @param {Object} state State variables for this autocomplete element.\n     * @return {Promise}\n     */\n    var activatePreviousItem = function(state) {\n        // Find the list of suggestions.\n        var suggestionsElement = $(document.getElementById(state.suggestionsId));\n\n        // Find the active one.\n        var element = suggestionsElement.children('[aria-selected=true]');\n\n        // Find it's index.\n        var current = suggestionsElement.children('[aria-hidden=false]').index(element);\n\n        // Activate the previous one.\n        return activateItem(current - 1, state);\n    };\n\n    /**\n     * Close the list of suggestions.\n     *\n     * @method closeSuggestions\n     * @private\n     * @param {Object} state State variables for this autocomplete element.\n     * @return {Promise}\n     */\n    var closeSuggestions = function(state) {\n        // Find the elements in the DOM.\n        var inputElement = $(document.getElementById(state.inputId));\n        var suggestionsElement = $(document.getElementById(state.suggestionsId));\n\n        // Announce the list of suggestions was closed, and read the current list of selections.\n        inputElement.attr('aria-expanded', false).attr('aria-activedescendant', state.selectionId);\n\n        // Hide the suggestions list (from screen readers too).\n        suggestionsElement.hide().attr('aria-hidden', true);\n\n        return $.Deferred().resolve();\n    };\n\n    /**\n     * Rebuild the list of suggestions based on the current values in the select list, and the query.\n     *\n     * @method updateSuggestions\n     * @private\n     * @param {Object} options The original options for this autocomplete.\n     * @param {Object} state The state variables for this autocomplete.\n     * @param {String} query The current text for the search string.\n     * @param {JQuery} originalSelect The JQuery object matching the hidden select list.\n     * @return {Promise}\n     */\n    var updateSuggestions = function(options, state, query, originalSelect) {\n        var pendingKey = 'form-autocomplete-updateSuggestions-' + state.inputId;\n        M.util.js_pending(pendingKey);\n\n        // Find the elements in the DOM.\n        var inputElement = $(document.getElementById(state.inputId));\n        var suggestionsElement = $(document.getElementById(state.suggestionsId));\n\n        // Used to track if we found any visible suggestions.\n        var matchingElements = false;\n        // Options is used by the context when rendering the suggestions from a template.\n        var suggestions = [];\n        originalSelect.children('option').each(function(index, option) {\n            if ($(option).prop('selected') !== true) {\n                suggestions[suggestions.length] = {label: option.innerHTML, value: $(option).attr('value')};\n            }\n        });\n\n        // Re-render the list of suggestions.\n        var searchquery = state.caseSensitive ? query : query.toLocaleLowerCase();\n        var context = $.extend({options: suggestions}, options, state);\n        var returnVal = templates.render(\n            'core/form_autocomplete_suggestions',\n            context\n        )\n        .then(function(html, js) {\n            // We have the new template, insert it in the page.\n            templates.replaceNode(suggestionsElement, html, js);\n\n            // Get the element again.\n            suggestionsElement = $(document.getElementById(state.suggestionsId));\n            // Show it if it is hidden.\n            suggestionsElement.show().attr('aria-hidden', false);\n            // For each option in the list, hide it if it doesn't match the query.\n            suggestionsElement.children().each(function(index, node) {\n                node = $(node);\n                if ((options.caseSensitive && node.text().indexOf(searchquery) > -1) ||\n                        (!options.caseSensitive && node.text().toLocaleLowerCase().indexOf(searchquery) > -1)) {\n                    node.show().attr('aria-hidden', false);\n                    matchingElements = true;\n                } else {\n                    node.hide().attr('aria-hidden', true);\n                }\n            });\n            // If we found any matches, show the list.\n            inputElement.attr('aria-expanded', true);\n            if (originalSelect.attr('data-notice')) {\n                // Display a notice rather than actual suggestions.\n                suggestionsElement.html(originalSelect.attr('data-notice'));\n            } else if (matchingElements) {\n                // We only activate the first item in the list if tags is false,\n                // because otherwise \"Enter\" would select the first item, instead of\n                // creating a new tag.\n                if (!options.tags) {\n                    activateItem(0, state);\n                }\n            } else {\n                // Nothing matches. Tell them that.\n                str.get_string('nosuggestions', 'form').done(function(nosuggestionsstr) {\n                    suggestionsElement.html(nosuggestionsstr);\n                });\n            }\n\n            return suggestionsElement;\n        })\n        .then(function() {\n            return M.util.js_complete(pendingKey);\n        })\n        .catch(notification.exception);\n\n        return returnVal;\n    };\n\n    /**\n     * Create a new item for the list (a tag).\n     *\n     * @method createItem\n     * @private\n     * @param {Object} options The original options for the autocomplete.\n     * @param {Object} state State variables for the autocomplete.\n     * @param {JQuery} originalSelect The JQuery object matching the hidden select list.\n     * @return {Promise}\n     */\n    var createItem = function(options, state, originalSelect) {\n        // Find the element in the DOM.\n        var inputElement = $(document.getElementById(state.inputId));\n        // Get the current text in the input field.\n        var query = inputElement.val();\n        var tags = query.split(',');\n        var found = false;\n\n        $.each(tags, function(tagindex, tag) {\n            // If we can only select one at a time, deselect any current value.\n            tag = tag.trim();\n            if (tag !== '') {\n                if (!options.multiple) {\n                    originalSelect.children('option').prop('selected', false);\n                }\n                // Look for an existing option in the select list that matches this new tag.\n                originalSelect.children('option').each(function(index, ele) {\n                    if ($(ele).attr('value') == tag) {\n                        found = true;\n                        $(ele).prop('selected', true);\n                    }\n                });\n                // Only create the item if it's new.\n                if (!found) {\n                    var option = $('<option>');\n                    option.append(document.createTextNode(tag));\n                    option.attr('value', tag);\n                    originalSelect.append(option);\n                    option.prop('selected', true);\n                    // We mark newly created custom options as we handle them differently if they are \"deselected\".\n                    option.attr('data-iscustom', true);\n                }\n            }\n        });\n\n        return updateSelectionList(options, state, originalSelect)\n        .then(function() {\n            // Notify that the selection changed.\n            notifyChange(originalSelect);\n\n            return;\n        })\n        .then(function() {\n            // Clear the input field.\n            inputElement.val('');\n\n            return;\n        })\n        .then(function() {\n            // Close the suggestions list.\n            return closeSuggestions(state);\n        });\n    };\n\n    /**\n     * Select the currently active item from the suggestions list.\n     *\n     * @method selectCurrentItem\n     * @private\n     * @param {Object} options The original options for the autocomplete.\n     * @param {Object} state State variables for the autocomplete.\n     * @param {JQuery} originalSelect The JQuery object matching the hidden select list.\n     * @return {Promise}\n     */\n    var selectCurrentItem = function(options, state, originalSelect) {\n        // Find the elements in the page.\n        var inputElement = $(document.getElementById(state.inputId));\n        var suggestionsElement = $(document.getElementById(state.suggestionsId));\n        // Here loop through suggestions and set val to join of all selected items.\n\n        var selectedItemValue = suggestionsElement.children('[aria-selected=true]').attr('data-value');\n        // The select will either be a single or multi select, so the following will either\n        // select one or more items correctly.\n        // Take care to use 'prop' and not 'attr' for selected properties.\n        // If only one can be selected at a time, start by deselecting everything.\n        if (!options.multiple) {\n            originalSelect.children('option').prop('selected', false);\n        }\n        // Look for a match, and toggle the selected property if there is a match.\n        originalSelect.children('option').each(function(index, ele) {\n            if ($(ele).attr('value') == selectedItemValue) {\n                $(ele).prop('selected', true);\n            }\n        });\n\n        return updateSelectionList(options, state, originalSelect)\n        .then(function() {\n            // Notify that the selection changed.\n            notifyChange(originalSelect);\n\n            return;\n        })\n        .then(function() {\n            if (options.closeSuggestionsOnSelect) {\n                // Clear the input element.\n                inputElement.val('');\n                // Close the list of suggestions.\n                return closeSuggestions(state);\n            } else {\n                // Focus on the input element so the suggestions does not auto-close.\n                inputElement.focus();\n                // Remove the last selected item from the suggestions list.\n                return updateSuggestions(options, state, inputElement.val(), originalSelect);\n            }\n        });\n    };\n\n    /**\n     * Fetch a new list of options via ajax.\n     *\n     * @method updateAjax\n     * @private\n     * @param {Event} e The event that triggered this update.\n     * @param {Object} options The original options for the autocomplete.\n     * @param {Object} state The state variables for the autocomplete.\n     * @param {JQuery} originalSelect The JQuery object matching the hidden select list.\n     * @param {Object} ajaxHandler This is a module that does the ajax fetch and translates the results.\n     * @return {Promise}\n     */\n    var updateAjax = function(e, options, state, originalSelect, ajaxHandler) {\n        var pendingPromise = addPendingJSPromise('updateAjax');\n        // We need to show the indicator outside of the hidden select list.\n        // So we get the parent id of the hidden select list.\n        var parentElement = $(document.getElementById(state.selectId)).parent();\n        LoadingIcon.addIconToContainerRemoveOnCompletion(parentElement, pendingPromise);\n\n        // Get the query to pass to the ajax function.\n        var query = $(e.currentTarget).val();\n        // Call the transport function to do the ajax (name taken from Select2).\n        ajaxHandler.transport(options.selector, query, function(results) {\n            // We got a result - pass it through the translator before using it.\n            var processedResults = ajaxHandler.processResults(options.selector, results);\n            var existingValues = [];\n\n            // Now destroy all options that are not currently selected.\n            if (!options.multiple) {\n                originalSelect.children('option').remove();\n            }\n            originalSelect.children('option').each(function(optionIndex, option) {\n                option = $(option);\n                if (!option.prop('selected')) {\n                    option.remove();\n                } else {\n                    existingValues.push(String(option.attr('value')));\n                }\n            });\n\n            if (!options.multiple && originalSelect.children('option').length === 0) {\n                // If this is a single select - and there are no current options\n                // the first option added will be selected by the browser. This causes a bug!\n                // We need to insert an empty option so that none of the real options are selected.\n                var option = $('<option>');\n                originalSelect.append(option);\n            }\n            if ($.isArray(processedResults)) {\n                // Add all the new ones returned from ajax.\n                $.each(processedResults, function(resultIndex, result) {\n                    if (existingValues.indexOf(String(result.value)) === -1) {\n                        var option = $('<option>');\n                        option.append(result.label);\n                        option.attr('value', result.value);\n                        originalSelect.append(option);\n                    }\n                });\n                originalSelect.attr('data-notice', '');\n            } else {\n                // The AJAX handler returned a string instead of the array.\n                originalSelect.attr('data-notice', processedResults);\n            }\n            // Update the list of suggestions now from the new values in the select list.\n            pendingPromise.resolve(updateSuggestions(options, state, '', originalSelect));\n        }, function(error) {\n            pendingPromise.reject(error);\n        });\n\n        return pendingPromise;\n    };\n\n    /**\n     * Add all the event listeners required for keyboard nav, blur clicks etc.\n     *\n     * @method addNavigation\n     * @private\n     * @param {Object} options The options used to create this autocomplete element.\n     * @param {Object} state State variables for this autocomplete element.\n     * @param {JQuery} originalSelect The JQuery object matching the hidden select list.\n     */\n    var addNavigation = function(options, state, originalSelect) {\n        // Start with the input element.\n        var inputElement = $(document.getElementById(state.inputId));\n        // Add keyboard nav with keydown.\n        inputElement.on('keydown', function(e) {\n            var pendingJsPromise = addPendingJSPromise('addNavigation-' + state.inputId + '-' + e.keyCode);\n\n            switch (e.keyCode) {\n                case KEYS.DOWN:\n                    // If the suggestion list is open, move to the next item.\n                    if (!options.showSuggestions) {\n                        // Do not consume this event.\n                        pendingJsPromise.resolve();\n                        return true;\n                    } else if (inputElement.attr('aria-expanded') === \"true\") {\n                        pendingJsPromise.resolve(activateNextItem(state));\n                    } else {\n                        // Handle ajax population of suggestions.\n                        if (!inputElement.val() && options.ajax) {\n                            require([options.ajax], function(ajaxHandler) {\n                                pendingJsPromise.resolve(updateAjax(e, options, state, originalSelect, ajaxHandler));\n                            });\n                        } else {\n                            // Open the suggestions list.\n                            pendingJsPromise.resolve(updateSuggestions(options, state, inputElement.val(), originalSelect));\n                        }\n                    }\n                    // We handled this event, so prevent it.\n                    e.preventDefault();\n                    return false;\n                case KEYS.UP:\n                    // Choose the previous active item.\n                    pendingJsPromise.resolve(activatePreviousItem(state));\n\n                    // We handled this event, so prevent it.\n                    e.preventDefault();\n                    return false;\n                case KEYS.ENTER:\n                    var suggestionsElement = $(document.getElementById(state.suggestionsId));\n                    if ((inputElement.attr('aria-expanded') === \"true\") &&\n                            (suggestionsElement.children('[aria-selected=true]').length > 0)) {\n                        // If the suggestion list has an active item, select it.\n                        pendingJsPromise.resolve(selectCurrentItem(options, state, originalSelect));\n                    } else if (options.tags) {\n                        // If tags are enabled, create a tag.\n                        pendingJsPromise.resolve(createItem(options, state, originalSelect));\n                    } else {\n                        pendingJsPromise.resolve();\n                    }\n\n                    // We handled this event, so prevent it.\n                    e.preventDefault();\n                    return false;\n                case KEYS.ESCAPE:\n                    if (inputElement.attr('aria-expanded') === \"true\") {\n                        // If the suggestion list is open, close it.\n                        pendingJsPromise.resolve(closeSuggestions(state));\n                    } else {\n                        pendingJsPromise.resolve();\n                    }\n                    // We handled this event, so prevent it.\n                    e.preventDefault();\n                    return false;\n            }\n            pendingJsPromise.resolve();\n            return true;\n        });\n        // Support multi lingual COMMA keycode (44).\n        inputElement.on('keypress', function(e) {\n\n            if (e.keyCode === KEYS.COMMA) {\n                if (options.tags) {\n                    // If we are allowing tags, comma should create a tag (or enter).\n                    addPendingJSPromise('keypress-' + e.keyCode)\n                    .resolve(createItem(options, state, originalSelect));\n                }\n                // We handled this event, so prevent it.\n                e.preventDefault();\n                return false;\n            }\n            return true;\n        });\n        // Support submitting the form without leaving the autocomplete element,\n        // or submitting too quick before the blur handler action is completed.\n        inputElement.closest('form').on('submit', function() {\n            if (options.tags) {\n                // If tags are enabled, create a tag.\n                addPendingJSPromise('form-autocomplete-submit')\n                .resolve(createItem(options, state, originalSelect));\n            }\n\n            return true;\n        });\n        inputElement.on('blur', function() {\n            var pendingPromise = addPendingJSPromise('form-autocomplete-blur');\n            window.setTimeout(function() {\n                // Get the current element with focus.\n                var focusElement = $(document.activeElement);\n                var timeoutPromise = $.Deferred();\n\n                // Only close the menu if the input hasn't regained focus and if the element still exists,\n                // and regain focus if the scrollbar is clicked.\n                // Due to the half a second delay, it is possible that the input element no longer exist\n                // by the time this code is being executed.\n                if (focusElement.is(document.getElementById(state.suggestionsId))) {\n                    inputElement.focus(); // Probably the scrollbar is clicked. Regain focus.\n                } else if (!focusElement.is(inputElement) && $(document.getElementById(state.inputId)).length) {\n                    if (options.tags) {\n                        timeoutPromise.then(function() {\n                            return createItem(options, state, originalSelect);\n                        })\n                        .catch();\n                    }\n                    timeoutPromise.then(function() {\n                        return closeSuggestions(state);\n                    })\n                    .catch();\n                }\n\n                timeoutPromise.then(function() {\n                    return pendingPromise.resolve();\n                })\n                .catch();\n                timeoutPromise.resolve();\n            }, 500);\n        });\n        if (options.showSuggestions) {\n            var arrowElement = $(document.getElementById(state.downArrowId));\n            arrowElement.on('click', function(e) {\n                var pendingPromise = addPendingJSPromise('form-autocomplete-show-suggestions');\n\n                // Prevent the close timer, or we will open, then close the suggestions.\n                inputElement.focus();\n\n                // Handle ajax population of suggestions.\n                if (!inputElement.val() && options.ajax) {\n                    require([options.ajax], function(ajaxHandler) {\n                        pendingPromise.resolve(updateAjax(e, options, state, originalSelect, ajaxHandler));\n                    });\n                } else {\n                    // Else - open the suggestions list.\n                    pendingPromise.resolve(updateSuggestions(options, state, inputElement.val(), originalSelect));\n                }\n            });\n        }\n\n        var suggestionsElement = $(document.getElementById(state.suggestionsId));\n        // Remove any click handler first.\n        suggestionsElement.parent().prop(\"onclick\", null).off(\"click\");\n        suggestionsElement.parent().on('click', '[role=option]', function(e) {\n            var pendingPromise = addPendingJSPromise('form-autocomplete-parent');\n            // Handle clicks on suggestions.\n            var element = $(e.currentTarget).closest('[role=option]');\n            var suggestionsElement = $(document.getElementById(state.suggestionsId));\n            // Find the index of the clicked on suggestion.\n            var current = suggestionsElement.children('[aria-hidden=false]').index(element);\n\n            // Activate it.\n            activateItem(current, state)\n            .then(function() {\n                // And select it.\n                return selectCurrentItem(options, state, originalSelect);\n            })\n            .then(function() {\n                return pendingPromise.resolve();\n            })\n            .catch();\n        });\n        var selectionElement = $(document.getElementById(state.selectionId));\n        // Handle clicks on the selected items (will unselect an item).\n        selectionElement.on('click', '[role=listitem]', function(e) {\n            var pendingPromise = addPendingJSPromise('form-autocomplete-clicks');\n\n            // Remove it from the selection.\n            pendingPromise.resolve(deselectItem(options, state, $(e.currentTarget), originalSelect));\n        });\n        // Keyboard navigation for the selection list.\n        selectionElement.on('keydown', function(e) {\n            var pendingPromise = addPendingJSPromise('form-autocomplete-keydown-' + e.keyCode);\n            switch (e.keyCode) {\n                case KEYS.DOWN:\n                    // We handled this event, so prevent it.\n                    e.preventDefault();\n\n                    // Choose the next selection item.\n                    pendingPromise.resolve(activateNextSelection(state));\n                    return false;\n                case KEYS.UP:\n                    // We handled this event, so prevent it.\n                    e.preventDefault();\n\n                    // Choose the previous selection item.\n                    pendingPromise.resolve(activatePreviousSelection(state));\n                    return false;\n                case KEYS.SPACE:\n                case KEYS.ENTER:\n                    // Get the item that is currently selected.\n                    var selectedItem = $(document.getElementById(state.selectionId)).children('[data-active-selection=true]');\n                    if (selectedItem) {\n                        e.preventDefault();\n\n                        // Unselect this item.\n                        pendingPromise.resolve(deselectItem(options, state, selectedItem, originalSelect));\n                    }\n                    return false;\n            }\n\n            // Not handled. Resolve the promise.\n            pendingPromise.resolve();\n            return true;\n        });\n        // Whenever the input field changes, update the suggestion list.\n        if (options.showSuggestions) {\n            // If this field uses ajax, set it up.\n            if (options.ajax) {\n                require([options.ajax], function(ajaxHandler) {\n                    // Creating throttled handlers free of race conditions, and accurate.\n                    // This code keeps track of a throttleTimeout, which is periodically polled.\n                    // Once the throttled function is executed, the fact that it is running is noted.\n                    // If a subsequent request comes in whilst it is running, this request is re-applied.\n                    var throttleTimeout = null;\n                    var inProgress = false;\n                    var pendingKey = 'autocomplete-throttledhandler';\n                    var handler = function(e) {\n                        // Empty the current timeout.\n                        throttleTimeout = null;\n\n                        // Mark this request as in-progress.\n                        inProgress = true;\n\n                        // Process the request.\n                        updateAjax(e, options, state, originalSelect, ajaxHandler)\n                        .then(function() {\n                            // Check if the throttleTimeout is still empty.\n                            // There's a potential condition whereby the JS request takes long enough to complete that\n                            // another task has been queued.\n                            // In this case another task will be kicked off and we must wait for that before marking htis as\n                            // complete.\n                            if (null === throttleTimeout) {\n                                // Mark this task as complete.\n                                M.util.js_complete(pendingKey);\n                            }\n                            inProgress = false;\n\n                            return arguments[0];\n                        })\n                        .catch(notification.exception);\n                    };\n\n                    // For input events, we do not want to trigger many, many updates.\n                    var throttledHandler = function(e) {\n                        window.clearTimeout(throttleTimeout);\n                        if (inProgress) {\n                            // A request is currently ongoing.\n                            // Delay this request another 100ms.\n                            throttleTimeout = window.setTimeout(throttledHandler.bind(this, e), 100);\n                            return;\n                        }\n\n                        if (throttleTimeout === null) {\n                            // There is currently no existing timeout handler, and it has not been recently cleared, so\n                            // this is the start of a throttling check.\n                            M.util.js_pending(pendingKey);\n                        }\n\n                        // There is currently no existing timeout handler, and it has not been recently cleared, so this\n                        // is the start of a throttling check.\n                        // Queue a call to the handler.\n                        throttleTimeout = window.setTimeout(handler.bind(this, e), 300);\n                    };\n\n                    // Trigger an ajax update after the text field value changes.\n                    inputElement.on(\"input\", throttledHandler);\n                });\n            } else {\n                inputElement.on('input', function(e) {\n                    var query = $(e.currentTarget).val();\n                    var last = $(e.currentTarget).data('last-value');\n                    // IE11 fires many more input events than required - even when the value has not changed.\n                    // We need to only do this for real value changed events or the suggestions will be\n                    // unclickable on IE11 (because they will be rebuilt before the click event fires).\n                    // Note - because of this we cannot close the list when the query is empty or it will break\n                    // on IE11.\n                    if (last !== query) {\n                        updateSuggestions(options, state, query, originalSelect);\n                    }\n                    $(e.currentTarget).data('last-value', query);\n                });\n            }\n        }\n    };\n\n    /**\n     * Create and return an unresolved Promise for some pending JS.\n     *\n     * @param   {String} key The unique identifier for this promise\n     * @return  {Promise}\n     */\n    var addPendingJSPromise = function(key) {\n            var pendingKey = 'form-autocomplete:' + key;\n\n            M.util.js_pending(pendingKey);\n\n            var pendingPromise = $.Deferred();\n\n            pendingPromise\n            .then(function() {\n                M.util.js_complete(pendingKey);\n\n                return arguments[0];\n            })\n            .catch(notification.exception);\n\n            return pendingPromise;\n    };\n\n    return /** @alias module:core/form-autocomplete */ {\n        // Public variables and functions.\n        /**\n         * Turn a boring select box into an auto-complete beast.\n         *\n         * @method enhance\n         * @param {string} selector The selector that identifies the select box.\n         * @param {boolean} tags Whether to allow support for tags (can define new entries).\n         * @param {string} ajax Name of an AMD module to handle ajax requests. If specified, the AMD\n         *                      module must expose 2 functions \"transport\" and \"processResults\".\n         *                      These are modeled on Select2 see: https://select2.github.io/options.html#ajax\n         * @param {String} placeholder - The text to display before a selection is made.\n         * @param {Boolean} caseSensitive - If search has to be made case sensitive.\n         * @param {Boolean} showSuggestions - If suggestions should be shown\n         * @param {String} noSelectionString - Text to display when there is no selection\n         * @param {Boolean} closeSuggestionsOnSelect - Whether to close the suggestions immediately after making a selection.\n         * @return {Promise}\n         */\n        enhance: function(selector, tags, ajax, placeholder, caseSensitive, showSuggestions, noSelectionString,\n                          closeSuggestionsOnSelect) {\n            // Set some default values.\n            var options = {\n                selector: selector,\n                tags: false,\n                ajax: false,\n                placeholder: placeholder,\n                caseSensitive: false,\n                showSuggestions: true,\n                noSelectionString: noSelectionString\n            };\n            var pendingKey = 'autocomplete-setup-' + selector;\n            M.util.js_pending(pendingKey);\n            if (typeof tags !== \"undefined\") {\n                options.tags = tags;\n            }\n            if (typeof ajax !== \"undefined\") {\n                options.ajax = ajax;\n            }\n            if (typeof caseSensitive !== \"undefined\") {\n                options.caseSensitive = caseSensitive;\n            }\n            if (typeof showSuggestions !== \"undefined\") {\n                options.showSuggestions = showSuggestions;\n            }\n            if (typeof noSelectionString === \"undefined\") {\n                str.get_string('noselection', 'form').done(function(result) {\n                    options.noSelectionString = result;\n                }).fail(notification.exception);\n            }\n\n            // Look for the select element.\n            var originalSelect = $(selector);\n            if (!originalSelect) {\n                log.debug('Selector not found: ' + selector);\n                M.util.js_complete(pendingKey);\n                return false;\n            }\n\n            originalSelect.css('visibility', 'hidden').attr('aria-hidden', true);\n\n            // Hide the original select.\n\n            // Find or generate some ids.\n            var state = {\n                selectId: originalSelect.attr('id'),\n                inputId: 'form_autocomplete_input-' + uniqueId,\n                suggestionsId: 'form_autocomplete_suggestions-' + uniqueId,\n                selectionId: 'form_autocomplete_selection-' + uniqueId,\n                downArrowId: 'form_autocomplete_downarrow-' + uniqueId\n            };\n\n            // Increment the unique counter so we don't get duplicates ever.\n            uniqueId++;\n\n            options.multiple = originalSelect.attr('multiple');\n\n            if (typeof closeSuggestionsOnSelect !== \"undefined\") {\n                options.closeSuggestionsOnSelect = closeSuggestionsOnSelect;\n            } else {\n                // If not specified, this will close suggestions by default for single-select elements only.\n                options.closeSuggestionsOnSelect = !options.multiple;\n            }\n\n            var originalLabel = $('[for=' + state.selectId + ']');\n            // Create the new markup and insert it after the select.\n            var suggestions = [];\n            originalSelect.children('option').each(function(index, option) {\n                suggestions[index] = {label: option.innerHTML, value: $(option).attr('value')};\n            });\n\n            // Render all the parts of our UI.\n            var context = $.extend({}, options, state);\n            context.options = suggestions;\n            context.items = [];\n\n            // Collect rendered inline JS to be executed once the HTML is shown.\n            var collectedjs = '';\n\n            var renderInput = templates.render('core/form_autocomplete_input', context).then(function(html, js) {\n                collectedjs += js;\n                return html;\n            });\n\n            var renderDatalist = templates.render('core/form_autocomplete_suggestions', context).then(function(html, js) {\n                collectedjs += js;\n                return html;\n            });\n\n            var renderSelection = templates.render('core/form_autocomplete_selection', context).then(function(html, js) {\n                collectedjs += js;\n                return html;\n            });\n\n            return $.when(renderInput, renderDatalist, renderSelection)\n            .then(function(input, suggestions, selection) {\n                originalSelect.hide();\n                originalSelect.after(suggestions);\n                originalSelect.after(input);\n                originalSelect.after(selection);\n\n                templates.runTemplateJS(collectedjs);\n\n                // Update the form label to point to the text input.\n                originalLabel.attr('for', state.inputId);\n                // Add the event handlers.\n                addNavigation(options, state, originalSelect);\n\n                var suggestionsElement = $(document.getElementById(state.suggestionsId));\n                // Hide the suggestions by default.\n                suggestionsElement.hide().attr('aria-hidden', true);\n\n                return;\n            })\n            .then(function() {\n                // Show the current values in the selection list.\n                return updateSelectionList(options, state, originalSelect);\n            })\n            .then(function() {\n                return M.util.js_complete(pendingKey);\n            })\n            .catch(function(error) {\n                M.util.js_complete(pendingKey);\n                notification.exception(error);\n            });\n        }\n    };\n});\n"],"file":"form-autocomplete.min.js"}
\ No newline at end of file
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This file is part of Moodle - http://moodle.org/\n//\n// Moodle is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// Moodle is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.\n\n/**\n * Autocomplete wrapper for select2 library.\n *\n * @module     core/form-autocomplete\n * @class      autocomplete\n * @package    core\n * @copyright  2015 Damyon Wiese <damyon@moodle.com>\n * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later\n * @since      3.0\n */\n/* globals require: false */\ndefine(\n    ['jquery', 'core/log', 'core/str', 'core/templates', 'core/notification', 'core/loadingicon'],\nfunction($, log, str, templates, notification, LoadingIcon) {\n\n    // Private functions and variables.\n    /** @var {Object} KEYS - List of keycode constants. */\n    var KEYS = {\n        DOWN: 40,\n        ENTER: 13,\n        SPACE: 32,\n        ESCAPE: 27,\n        COMMA: 44,\n        UP: 38\n    };\n\n    var uniqueId = Date.now();\n\n    /**\n     * Make an item in the selection list \"active\".\n     *\n     * @method activateSelection\n     * @private\n     * @param {Number} index The index in the current (visible) list of selection.\n     * @param {Object} state State variables for this autocomplete element.\n     * @return {Promise}\n     */\n    var activateSelection = function(index, state) {\n        // Find the elements in the DOM.\n        var selectionElement = $(document.getElementById(state.selectionId));\n\n        // Count the visible items.\n        var length = selectionElement.children('[aria-selected=true]').length;\n        // Limit the index to the upper/lower bounds of the list (wrap in both directions).\n        index = index % length;\n        while (index < 0) {\n            index += length;\n        }\n        // Find the specified element.\n        var element = $(selectionElement.children('[aria-selected=true]').get(index));\n        // Create an id we can assign to this element.\n        var itemId = state.selectionId + '-' + index;\n\n        // Deselect all the selections.\n        selectionElement.children().attr('data-active-selection', false).attr('id', '');\n        // Select only this suggestion and assign it the id.\n        element.attr('data-active-selection', true).attr('id', itemId);\n        // Tell the input field it has a new active descendant so the item is announced.\n        selectionElement.attr('aria-activedescendant', itemId);\n\n        return $.Deferred().resolve();\n    };\n\n    /**\n     * Update the element that shows the currently selected items.\n     *\n     * @method updateSelectionList\n     * @private\n     * @param {Object} options Original options for this autocomplete element.\n     * @param {Object} state State variables for this autocomplete element.\n     * @param {JQuery} originalSelect The JQuery object matching the hidden select list.\n     * @return {Promise}\n     */\n    var updateSelectionList = function(options, state, originalSelect) {\n        var pendingKey = 'form-autocomplete-updateSelectionList-' + state.inputId;\n        M.util.js_pending(pendingKey);\n\n        // Build up a valid context to re-render the template.\n        var items = [];\n        var newSelection = $(document.getElementById(state.selectionId));\n        var activeId = newSelection.attr('aria-activedescendant');\n        var activeValue = false;\n\n        if (activeId) {\n            activeValue = $(document.getElementById(activeId)).attr('data-value');\n        }\n        originalSelect.children('option').each(function(index, ele) {\n            if ($(ele).prop('selected')) {\n                var label;\n                if ($(ele).data('html')) {\n                    label = $(ele).data('html');\n                } else {\n                    label = $(ele).html();\n                }\n                if (label !== '') {\n                    items.push({label: label, value: $(ele).attr('value')});\n                }\n            }\n        });\n        var context = $.extend({items: items}, options, state);\n        // Render the template.\n        return templates.render('core/form_autocomplete_selection_items', context)\n        .then(function(html, js) {\n            // Add it to the page.\n            templates.replaceNodeContents(newSelection, html, js);\n\n            if (activeValue !== false) {\n                // Reselect any previously selected item.\n                newSelection.children('[aria-selected=true]').each(function(index, ele) {\n                    if ($(ele).attr('data-value') === activeValue) {\n                        activateSelection(index, state);\n                    }\n                });\n            }\n\n            return activeValue;\n        })\n        .then(function() {\n            return M.util.js_complete(pendingKey);\n        })\n        .catch(notification.exception);\n    };\n\n    /**\n     * Notify of a change in the selection.\n     *\n     * @param {jQuery} originalSelect The jQuery object matching the hidden select list.\n     */\n    var notifyChange = function(originalSelect) {\n        if (typeof M.core_formchangechecker !== 'undefined') {\n            M.core_formchangechecker.set_form_changed();\n        }\n        originalSelect.change();\n    };\n\n    /**\n     * Remove the given item from the list of selected things.\n     *\n     * @method deselectItem\n     * @private\n     * @param {Object} options Original options for this autocomplete element.\n     * @param {Object} state State variables for this autocomplete element.\n     * @param {Element} item The item to be deselected.\n     * @param {Element} originalSelect The original select list.\n     * @return {Promise}\n     */\n    var deselectItem = function(options, state, item, originalSelect) {\n        var selectedItemValue = $(item).attr('data-value');\n\n        // Look for a match, and toggle the selected property if there is a match.\n        originalSelect.children('option').each(function(index, ele) {\n            if ($(ele).attr('value') == selectedItemValue) {\n                $(ele).prop('selected', false);\n                // We remove newly created custom tags from the suggestions list when they are deselected.\n                if ($(ele).attr('data-iscustom')) {\n                    $(ele).remove();\n                }\n            }\n        });\n        // Rerender the selection list.\n        return updateSelectionList(options, state, originalSelect)\n        .then(function() {\n            // Notify that the selection changed.\n            notifyChange(originalSelect);\n\n            return;\n        });\n    };\n\n    /**\n     * Make an item in the suggestions \"active\" (about to be selected).\n     *\n     * @method activateItem\n     * @private\n     * @param {Number} index The index in the current (visible) list of suggestions.\n     * @param {Object} state State variables for this instance of autocomplete.\n     * @return {Promise}\n     */\n    var activateItem = function(index, state) {\n        // Find the elements in the DOM.\n        var inputElement = $(document.getElementById(state.inputId));\n        var suggestionsElement = $(document.getElementById(state.suggestionsId));\n\n        // Count the visible items.\n        var length = suggestionsElement.children('[aria-hidden=false]').length;\n        // Limit the index to the upper/lower bounds of the list (wrap in both directions).\n        index = index % length;\n        while (index < 0) {\n            index += length;\n        }\n        // Find the specified element.\n        var element = $(suggestionsElement.children('[aria-hidden=false]').get(index));\n        // Find the index of this item in the full list of suggestions (including hidden).\n        var globalIndex = $(suggestionsElement.children('[role=option]')).index(element);\n        // Create an id we can assign to this element.\n        var itemId = state.suggestionsId + '-' + globalIndex;\n\n        // Deselect all the suggestions.\n        suggestionsElement.children().attr('aria-selected', false).attr('id', '');\n        // Select only this suggestion and assign it the id.\n        element.attr('aria-selected', true).attr('id', itemId);\n        // Tell the input field it has a new active descendant so the item is announced.\n        inputElement.attr('aria-activedescendant', itemId);\n\n        // Scroll it into view.\n        var scrollPos = element.offset().top\n                       - suggestionsElement.offset().top\n                       + suggestionsElement.scrollTop()\n                       - (suggestionsElement.height() / 2);\n        return suggestionsElement.animate({\n            scrollTop: scrollPos\n        }, 100).promise();\n    };\n\n    /**\n     * Find the index of the current active suggestion, and activate the next one.\n     *\n     * @method activateNextItem\n     * @private\n     * @param {Object} state State variable for this auto complete element.\n     * @return {Promise}\n     */\n    var activateNextItem = function(state) {\n        // Find the list of suggestions.\n        var suggestionsElement = $(document.getElementById(state.suggestionsId));\n        // Find the active one.\n        var element = suggestionsElement.children('[aria-selected=true]');\n        // Find it's index.\n        var current = suggestionsElement.children('[aria-hidden=false]').index(element);\n        // Activate the next one.\n        return activateItem(current + 1, state);\n    };\n\n    /**\n     * Find the index of the current active selection, and activate the previous one.\n     *\n     * @method activatePreviousSelection\n     * @private\n     * @param {Object} state State variables for this instance of autocomplete.\n     * @return {Promise}\n     */\n    var activatePreviousSelection = function(state) {\n        // Find the list of selections.\n        var selectionsElement = $(document.getElementById(state.selectionId));\n        // Find the active one.\n        var element = selectionsElement.children('[data-active-selection=true]');\n        if (!element) {\n            return activateSelection(0, state);\n        }\n        // Find it's index.\n        var current = selectionsElement.children('[aria-selected=true]').index(element);\n        // Activate the next one.\n        return activateSelection(current - 1, state);\n    };\n\n    /**\n     * Find the index of the current active selection, and activate the next one.\n     *\n     * @method activateNextSelection\n     * @private\n     * @param {Object} state State variables for this instance of autocomplete.\n     * @return {Promise}\n     */\n    var activateNextSelection = function(state) {\n        // Find the list of selections.\n        var selectionsElement = $(document.getElementById(state.selectionId));\n\n        // Find the active one.\n        var element = selectionsElement.children('[data-active-selection=true]');\n        var current = 0;\n\n        if (element) {\n            // The element was found. Determine the index and move to the next one.\n            current = selectionsElement.children('[aria-selected=true]').index(element);\n            current = current + 1;\n        } else {\n            // No selected item found. Move to the first.\n            current = 0;\n        }\n\n        return activateSelection(current, state);\n    };\n\n    /**\n     * Find the index of the current active suggestion, and activate the previous one.\n     *\n     * @method activatePreviousItem\n     * @private\n     * @param {Object} state State variables for this autocomplete element.\n     * @return {Promise}\n     */\n    var activatePreviousItem = function(state) {\n        // Find the list of suggestions.\n        var suggestionsElement = $(document.getElementById(state.suggestionsId));\n\n        // Find the active one.\n        var element = suggestionsElement.children('[aria-selected=true]');\n\n        // Find it's index.\n        var current = suggestionsElement.children('[aria-hidden=false]').index(element);\n\n        // Activate the previous one.\n        return activateItem(current - 1, state);\n    };\n\n    /**\n     * Close the list of suggestions.\n     *\n     * @method closeSuggestions\n     * @private\n     * @param {Object} state State variables for this autocomplete element.\n     * @return {Promise}\n     */\n    var closeSuggestions = function(state) {\n        // Find the elements in the DOM.\n        var inputElement = $(document.getElementById(state.inputId));\n        var suggestionsElement = $(document.getElementById(state.suggestionsId));\n\n        // Announce the list of suggestions was closed, and read the current list of selections.\n        inputElement.attr('aria-expanded', false).attr('aria-activedescendant', state.selectionId);\n\n        // Hide the suggestions list (from screen readers too).\n        suggestionsElement.hide().attr('aria-hidden', true);\n\n        return $.Deferred().resolve();\n    };\n\n    /**\n     * Rebuild the list of suggestions based on the current values in the select list, and the query.\n     *\n     * @method updateSuggestions\n     * @private\n     * @param {Object} options The original options for this autocomplete.\n     * @param {Object} state The state variables for this autocomplete.\n     * @param {String} query The current text for the search string.\n     * @param {JQuery} originalSelect The JQuery object matching the hidden select list.\n     * @return {Promise}\n     */\n    var updateSuggestions = function(options, state, query, originalSelect) {\n        var pendingKey = 'form-autocomplete-updateSuggestions-' + state.inputId;\n        M.util.js_pending(pendingKey);\n\n        // Find the elements in the DOM.\n        var inputElement = $(document.getElementById(state.inputId));\n        var suggestionsElement = $(document.getElementById(state.suggestionsId));\n\n        // Used to track if we found any visible suggestions.\n        var matchingElements = false;\n        // Options is used by the context when rendering the suggestions from a template.\n        var suggestions = [];\n        originalSelect.children('option').each(function(index, option) {\n            if ($(option).prop('selected') !== true) {\n                suggestions[suggestions.length] = {label: option.innerHTML, value: $(option).attr('value')};\n            }\n        });\n\n        // Re-render the list of suggestions.\n        var searchquery = state.caseSensitive ? query : query.toLocaleLowerCase();\n        var context = $.extend({options: suggestions}, options, state);\n        var returnVal = templates.render(\n            'core/form_autocomplete_suggestions',\n            context\n        )\n        .then(function(html, js) {\n            // We have the new template, insert it in the page.\n            templates.replaceNode(suggestionsElement, html, js);\n\n            // Get the element again.\n            suggestionsElement = $(document.getElementById(state.suggestionsId));\n            // Show it if it is hidden.\n            suggestionsElement.show().attr('aria-hidden', false);\n            // For each option in the list, hide it if it doesn't match the query.\n            suggestionsElement.children().each(function(index, node) {\n                node = $(node);\n                if ((options.caseSensitive && node.text().indexOf(searchquery) > -1) ||\n                        (!options.caseSensitive && node.text().toLocaleLowerCase().indexOf(searchquery) > -1)) {\n                    node.show().attr('aria-hidden', false);\n                    matchingElements = true;\n                } else {\n                    node.hide().attr('aria-hidden', true);\n                }\n            });\n            // If we found any matches, show the list.\n            inputElement.attr('aria-expanded', true);\n            if (originalSelect.attr('data-notice')) {\n                // Display a notice rather than actual suggestions.\n                suggestionsElement.html(originalSelect.attr('data-notice'));\n            } else if (matchingElements) {\n                // We only activate the first item in the list if tags is false,\n                // because otherwise \"Enter\" would select the first item, instead of\n                // creating a new tag.\n                if (!options.tags) {\n                    activateItem(0, state);\n                }\n            } else {\n                // Nothing matches. Tell them that.\n                str.get_string('nosuggestions', 'form').done(function(nosuggestionsstr) {\n                    suggestionsElement.html(nosuggestionsstr);\n                });\n            }\n\n            return suggestionsElement;\n        })\n        .then(function() {\n            return M.util.js_complete(pendingKey);\n        })\n        .catch(notification.exception);\n\n        return returnVal;\n    };\n\n    /**\n     * Create a new item for the list (a tag).\n     *\n     * @method createItem\n     * @private\n     * @param {Object} options The original options for the autocomplete.\n     * @param {Object} state State variables for the autocomplete.\n     * @param {JQuery} originalSelect The JQuery object matching the hidden select list.\n     * @return {Promise}\n     */\n    var createItem = function(options, state, originalSelect) {\n        // Find the element in the DOM.\n        var inputElement = $(document.getElementById(state.inputId));\n        // Get the current text in the input field.\n        var query = inputElement.val();\n        var tags = query.split(',');\n        var found = false;\n\n        $.each(tags, function(tagindex, tag) {\n            // If we can only select one at a time, deselect any current value.\n            tag = tag.trim();\n            if (tag !== '') {\n                if (!options.multiple) {\n                    originalSelect.children('option').prop('selected', false);\n                }\n                // Look for an existing option in the select list that matches this new tag.\n                originalSelect.children('option').each(function(index, ele) {\n                    if ($(ele).attr('value') == tag) {\n                        found = true;\n                        $(ele).prop('selected', true);\n                    }\n                });\n                // Only create the item if it's new.\n                if (!found) {\n                    var option = $('<option>');\n                    option.append(document.createTextNode(tag));\n                    option.attr('value', tag);\n                    originalSelect.append(option);\n                    option.prop('selected', true);\n                    // We mark newly created custom options as we handle them differently if they are \"deselected\".\n                    option.attr('data-iscustom', true);\n                }\n            }\n        });\n\n        return updateSelectionList(options, state, originalSelect)\n        .then(function() {\n            // Notify that the selection changed.\n            notifyChange(originalSelect);\n\n            return;\n        })\n        .then(function() {\n            // Clear the input field.\n            inputElement.val('');\n\n            return;\n        })\n        .then(function() {\n            // Close the suggestions list.\n            return closeSuggestions(state);\n        });\n    };\n\n    /**\n     * Select the currently active item from the suggestions list.\n     *\n     * @method selectCurrentItem\n     * @private\n     * @param {Object} options The original options for the autocomplete.\n     * @param {Object} state State variables for the autocomplete.\n     * @param {JQuery} originalSelect The JQuery object matching the hidden select list.\n     * @return {Promise}\n     */\n    var selectCurrentItem = function(options, state, originalSelect) {\n        // Find the elements in the page.\n        var inputElement = $(document.getElementById(state.inputId));\n        var suggestionsElement = $(document.getElementById(state.suggestionsId));\n        // Here loop through suggestions and set val to join of all selected items.\n\n        var selectedItemValue = suggestionsElement.children('[aria-selected=true]').attr('data-value');\n        // The select will either be a single or multi select, so the following will either\n        // select one or more items correctly.\n        // Take care to use 'prop' and not 'attr' for selected properties.\n        // If only one can be selected at a time, start by deselecting everything.\n        if (!options.multiple) {\n            originalSelect.children('option').prop('selected', false);\n        }\n        // Look for a match, and toggle the selected property if there is a match.\n        originalSelect.children('option').each(function(index, ele) {\n            if ($(ele).attr('value') == selectedItemValue) {\n                $(ele).prop('selected', true);\n            }\n        });\n\n        return updateSelectionList(options, state, originalSelect)\n        .then(function() {\n            // Notify that the selection changed.\n            notifyChange(originalSelect);\n\n            return;\n        })\n        .then(function() {\n            if (options.closeSuggestionsOnSelect) {\n                // Clear the input element.\n                inputElement.val('');\n                // Close the list of suggestions.\n                return closeSuggestions(state);\n            } else {\n                // Focus on the input element so the suggestions does not auto-close.\n                inputElement.focus();\n                // Remove the last selected item from the suggestions list.\n                return updateSuggestions(options, state, inputElement.val(), originalSelect);\n            }\n        });\n    };\n\n    /**\n     * Fetch a new list of options via ajax.\n     *\n     * @method updateAjax\n     * @private\n     * @param {Event} e The event that triggered this update.\n     * @param {Object} options The original options for the autocomplete.\n     * @param {Object} state The state variables for the autocomplete.\n     * @param {JQuery} originalSelect The JQuery object matching the hidden select list.\n     * @param {Object} ajaxHandler This is a module that does the ajax fetch and translates the results.\n     * @return {Promise}\n     */\n    var updateAjax = function(e, options, state, originalSelect, ajaxHandler) {\n        var pendingPromise = addPendingJSPromise('updateAjax');\n        // We need to show the indicator outside of the hidden select list.\n        // So we get the parent id of the hidden select list.\n        var parentElement = $(document.getElementById(state.selectId)).parent();\n        LoadingIcon.addIconToContainerRemoveOnCompletion(parentElement, pendingPromise);\n\n        // Get the query to pass to the ajax function.\n        var query = $(e.currentTarget).val();\n        // Call the transport function to do the ajax (name taken from Select2).\n        ajaxHandler.transport(options.selector, query, function(results) {\n            // We got a result - pass it through the translator before using it.\n            var processedResults = ajaxHandler.processResults(options.selector, results);\n            var existingValues = [];\n\n            // Now destroy all options that are not currently selected.\n            if (!options.multiple) {\n                originalSelect.children('option').remove();\n            }\n            originalSelect.children('option').each(function(optionIndex, option) {\n                option = $(option);\n                if (!option.prop('selected')) {\n                    option.remove();\n                } else {\n                    existingValues.push(String(option.attr('value')));\n                }\n            });\n\n            if (!options.multiple && originalSelect.children('option').length === 0) {\n                // If this is a single select - and there are no current options\n                // the first option added will be selected by the browser. This causes a bug!\n                // We need to insert an empty option so that none of the real options are selected.\n                var option = $('<option>');\n                originalSelect.append(option);\n            }\n            if ($.isArray(processedResults)) {\n                // Add all the new ones returned from ajax.\n                $.each(processedResults, function(resultIndex, result) {\n                    if (existingValues.indexOf(String(result.value)) === -1) {\n                        var option = $('<option>');\n                        option.append(result.label);\n                        option.attr('value', result.value);\n                        originalSelect.append(option);\n                    }\n                });\n                originalSelect.attr('data-notice', '');\n            } else {\n                // The AJAX handler returned a string instead of the array.\n                originalSelect.attr('data-notice', processedResults);\n            }\n            // Update the list of suggestions now from the new values in the select list.\n            pendingPromise.resolve(updateSuggestions(options, state, '', originalSelect));\n        }, function(error) {\n            pendingPromise.reject(error);\n        });\n\n        return pendingPromise;\n    };\n\n    /**\n     * Add all the event listeners required for keyboard nav, blur clicks etc.\n     *\n     * @method addNavigation\n     * @private\n     * @param {Object} options The options used to create this autocomplete element.\n     * @param {Object} state State variables for this autocomplete element.\n     * @param {JQuery} originalSelect The JQuery object matching the hidden select list.\n     */\n    var addNavigation = function(options, state, originalSelect) {\n        // Start with the input element.\n        var inputElement = $(document.getElementById(state.inputId));\n        // Add keyboard nav with keydown.\n        inputElement.on('keydown', function(e) {\n            var pendingJsPromise = addPendingJSPromise('addNavigation-' + state.inputId + '-' + e.keyCode);\n\n            switch (e.keyCode) {\n                case KEYS.DOWN:\n                    // If the suggestion list is open, move to the next item.\n                    if (!options.showSuggestions) {\n                        // Do not consume this event.\n                        pendingJsPromise.resolve();\n                        return true;\n                    } else if (inputElement.attr('aria-expanded') === \"true\") {\n                        pendingJsPromise.resolve(activateNextItem(state));\n                    } else {\n                        // Handle ajax population of suggestions.\n                        if (!inputElement.val() && options.ajax) {\n                            require([options.ajax], function(ajaxHandler) {\n                                pendingJsPromise.resolve(updateAjax(e, options, state, originalSelect, ajaxHandler));\n                            });\n                        } else {\n                            // Open the suggestions list.\n                            pendingJsPromise.resolve(updateSuggestions(options, state, inputElement.val(), originalSelect));\n                        }\n                    }\n                    // We handled this event, so prevent it.\n                    e.preventDefault();\n                    return false;\n                case KEYS.UP:\n                    // Choose the previous active item.\n                    pendingJsPromise.resolve(activatePreviousItem(state));\n\n                    // We handled this event, so prevent it.\n                    e.preventDefault();\n                    return false;\n                case KEYS.ENTER:\n                    var suggestionsElement = $(document.getElementById(state.suggestionsId));\n                    if ((inputElement.attr('aria-expanded') === \"true\") &&\n                            (suggestionsElement.children('[aria-selected=true]').length > 0)) {\n                        // If the suggestion list has an active item, select it.\n                        pendingJsPromise.resolve(selectCurrentItem(options, state, originalSelect));\n                    } else if (options.tags) {\n                        // If tags are enabled, create a tag.\n                        pendingJsPromise.resolve(createItem(options, state, originalSelect));\n                    } else {\n                        pendingJsPromise.resolve();\n                    }\n\n                    // We handled this event, so prevent it.\n                    e.preventDefault();\n                    return false;\n                case KEYS.ESCAPE:\n                    if (inputElement.attr('aria-expanded') === \"true\") {\n                        // If the suggestion list is open, close it.\n                        pendingJsPromise.resolve(closeSuggestions(state));\n                    } else {\n                        pendingJsPromise.resolve();\n                    }\n                    // We handled this event, so prevent it.\n                    e.preventDefault();\n                    return false;\n            }\n            pendingJsPromise.resolve();\n            return true;\n        });\n        // Support multi lingual COMMA keycode (44).\n        inputElement.on('keypress', function(e) {\n\n            if (e.keyCode === KEYS.COMMA) {\n                if (options.tags) {\n                    // If we are allowing tags, comma should create a tag (or enter).\n                    addPendingJSPromise('keypress-' + e.keyCode)\n                    .resolve(createItem(options, state, originalSelect));\n                }\n                // We handled this event, so prevent it.\n                e.preventDefault();\n                return false;\n            }\n            return true;\n        });\n        // Support submitting the form without leaving the autocomplete element,\n        // or submitting too quick before the blur handler action is completed.\n        inputElement.closest('form').on('submit', function() {\n            if (options.tags) {\n                // If tags are enabled, create a tag.\n                addPendingJSPromise('form-autocomplete-submit')\n                .resolve(createItem(options, state, originalSelect));\n            }\n\n            return true;\n        });\n        inputElement.on('blur', function() {\n            var pendingPromise = addPendingJSPromise('form-autocomplete-blur');\n            window.setTimeout(function() {\n                // Get the current element with focus.\n                var focusElement = $(document.activeElement);\n                var timeoutPromise = $.Deferred();\n\n                // Only close the menu if the input hasn't regained focus and if the element still exists,\n                // and regain focus if the scrollbar is clicked.\n                // Due to the half a second delay, it is possible that the input element no longer exist\n                // by the time this code is being executed.\n                if (focusElement.is(document.getElementById(state.suggestionsId))) {\n                    inputElement.focus(); // Probably the scrollbar is clicked. Regain focus.\n                } else if (!focusElement.is(inputElement) && $(document.getElementById(state.inputId)).length) {\n                    if (options.tags) {\n                        timeoutPromise.then(function() {\n                            return createItem(options, state, originalSelect);\n                        })\n                        .catch();\n                    }\n                    timeoutPromise.then(function() {\n                        return closeSuggestions(state);\n                    })\n                    .catch();\n                }\n\n                timeoutPromise.then(function() {\n                    return pendingPromise.resolve();\n                })\n                .catch();\n                timeoutPromise.resolve();\n            }, 500);\n        });\n        if (options.showSuggestions) {\n            var arrowElement = $(document.getElementById(state.downArrowId));\n            arrowElement.on('click', function(e) {\n                var pendingPromise = addPendingJSPromise('form-autocomplete-show-suggestions');\n\n                // Prevent the close timer, or we will open, then close the suggestions.\n                inputElement.focus();\n\n                // Handle ajax population of suggestions.\n                if (!inputElement.val() && options.ajax) {\n                    require([options.ajax], function(ajaxHandler) {\n                        pendingPromise.resolve(updateAjax(e, options, state, originalSelect, ajaxHandler));\n                    });\n                } else {\n                    // Else - open the suggestions list.\n                    pendingPromise.resolve(updateSuggestions(options, state, inputElement.val(), originalSelect));\n                }\n            });\n        }\n\n        var suggestionsElement = $(document.getElementById(state.suggestionsId));\n        // Remove any click handler first.\n        suggestionsElement.parent().prop(\"onclick\", null).off(\"click\");\n        suggestionsElement.parent().on('click', '[role=option]', function(e) {\n            var pendingPromise = addPendingJSPromise('form-autocomplete-parent');\n            // Handle clicks on suggestions.\n            var element = $(e.currentTarget).closest('[role=option]');\n            var suggestionsElement = $(document.getElementById(state.suggestionsId));\n            // Find the index of the clicked on suggestion.\n            var current = suggestionsElement.children('[aria-hidden=false]').index(element);\n\n            // Activate it.\n            activateItem(current, state)\n            .then(function() {\n                // And select it.\n                return selectCurrentItem(options, state, originalSelect);\n            })\n            .then(function() {\n                return pendingPromise.resolve();\n            })\n            .catch();\n        });\n        var selectionElement = $(document.getElementById(state.selectionId));\n        // Handle clicks on the selected items (will unselect an item).\n        selectionElement.on('click', '[role=listitem]', function(e) {\n            var pendingPromise = addPendingJSPromise('form-autocomplete-clicks');\n\n            // Remove it from the selection.\n            pendingPromise.resolve(deselectItem(options, state, $(e.currentTarget), originalSelect));\n        });\n        // Keyboard navigation for the selection list.\n        selectionElement.on('keydown', function(e) {\n            var pendingPromise = addPendingJSPromise('form-autocomplete-keydown-' + e.keyCode);\n            switch (e.keyCode) {\n                case KEYS.DOWN:\n                    // We handled this event, so prevent it.\n                    e.preventDefault();\n\n                    // Choose the next selection item.\n                    pendingPromise.resolve(activateNextSelection(state));\n                    return false;\n                case KEYS.UP:\n                    // We handled this event, so prevent it.\n                    e.preventDefault();\n\n                    // Choose the previous selection item.\n                    pendingPromise.resolve(activatePreviousSelection(state));\n                    return false;\n                case KEYS.SPACE:\n                case KEYS.ENTER:\n                    // Get the item that is currently selected.\n                    var selectedItem = $(document.getElementById(state.selectionId)).children('[data-active-selection=true]');\n                    if (selectedItem) {\n                        e.preventDefault();\n\n                        // Unselect this item.\n                        pendingPromise.resolve(deselectItem(options, state, selectedItem, originalSelect));\n                    }\n                    return false;\n            }\n\n            // Not handled. Resolve the promise.\n            pendingPromise.resolve();\n            return true;\n        });\n        // Whenever the input field changes, update the suggestion list.\n        if (options.showSuggestions) {\n            // If this field uses ajax, set it up.\n            if (options.ajax) {\n                require([options.ajax], function(ajaxHandler) {\n                    // Creating throttled handlers free of race conditions, and accurate.\n                    // This code keeps track of a throttleTimeout, which is periodically polled.\n                    // Once the throttled function is executed, the fact that it is running is noted.\n                    // If a subsequent request comes in whilst it is running, this request is re-applied.\n                    var throttleTimeout = null;\n                    var inProgress = false;\n                    var pendingKey = 'autocomplete-throttledhandler';\n                    var handler = function(e) {\n                        // Empty the current timeout.\n                        throttleTimeout = null;\n\n                        // Mark this request as in-progress.\n                        inProgress = true;\n\n                        // Process the request.\n                        updateAjax(e, options, state, originalSelect, ajaxHandler)\n                        .then(function() {\n                            // Check if the throttleTimeout is still empty.\n                            // There's a potential condition whereby the JS request takes long enough to complete that\n                            // another task has been queued.\n                            // In this case another task will be kicked off and we must wait for that before marking htis as\n                            // complete.\n                            if (null === throttleTimeout) {\n                                // Mark this task as complete.\n                                M.util.js_complete(pendingKey);\n                            }\n                            inProgress = false;\n\n                            return arguments[0];\n                        })\n                        .catch(notification.exception);\n                    };\n\n                    // For input events, we do not want to trigger many, many updates.\n                    var throttledHandler = function(e) {\n                        window.clearTimeout(throttleTimeout);\n                        if (inProgress) {\n                            // A request is currently ongoing.\n                            // Delay this request another 100ms.\n                            throttleTimeout = window.setTimeout(throttledHandler.bind(this, e), 100);\n                            return;\n                        }\n\n                        if (throttleTimeout === null) {\n                            // There is currently no existing timeout handler, and it has not been recently cleared, so\n                            // this is the start of a throttling check.\n                            M.util.js_pending(pendingKey);\n                        }\n\n                        // There is currently no existing timeout handler, and it has not been recently cleared, so this\n                        // is the start of a throttling check.\n                        // Queue a call to the handler.\n                        throttleTimeout = window.setTimeout(handler.bind(this, e), 300);\n                    };\n\n                    // Trigger an ajax update after the text field value changes.\n                    inputElement.on(\"input\", throttledHandler);\n                });\n            } else {\n                inputElement.on('input', function(e) {\n                    var query = $(e.currentTarget).val();\n                    var last = $(e.currentTarget).data('last-value');\n                    // IE11 fires many more input events than required - even when the value has not changed.\n                    // We need to only do this for real value changed events or the suggestions will be\n                    // unclickable on IE11 (because they will be rebuilt before the click event fires).\n                    // Note - because of this we cannot close the list when the query is empty or it will break\n                    // on IE11.\n                    if (last !== query) {\n                        updateSuggestions(options, state, query, originalSelect);\n                    }\n                    $(e.currentTarget).data('last-value', query);\n                });\n            }\n        }\n    };\n\n    /**\n     * Create and return an unresolved Promise for some pending JS.\n     *\n     * @param   {String} key The unique identifier for this promise\n     * @return  {Promise}\n     */\n    var addPendingJSPromise = function(key) {\n            var pendingKey = 'form-autocomplete:' + key;\n\n            M.util.js_pending(pendingKey);\n\n            var pendingPromise = $.Deferred();\n\n            pendingPromise\n            .then(function() {\n                M.util.js_complete(pendingKey);\n\n                return arguments[0];\n            })\n            .catch(notification.exception);\n\n            return pendingPromise;\n    };\n\n    return /** @alias module:core/form-autocomplete */ {\n        // Public variables and functions.\n        /**\n         * Turn a boring select box into an auto-complete beast.\n         *\n         * @method enhance\n         * @param {string} selector The selector that identifies the select box.\n         * @param {boolean} tags Whether to allow support for tags (can define new entries).\n         * @param {string} ajax Name of an AMD module to handle ajax requests. If specified, the AMD\n         *                      module must expose 2 functions \"transport\" and \"processResults\".\n         *                      These are modeled on Select2 see: https://select2.github.io/options.html#ajax\n         * @param {String} placeholder - The text to display before a selection is made.\n         * @param {Boolean} caseSensitive - If search has to be made case sensitive.\n         * @param {Boolean} showSuggestions - If suggestions should be shown\n         * @param {String} noSelectionString - Text to display when there is no selection\n         * @param {Boolean} closeSuggestionsOnSelect - Whether to close the suggestions immediately after making a selection.\n         * @return {Promise}\n         */\n        enhance: function(selector, tags, ajax, placeholder, caseSensitive, showSuggestions, noSelectionString,\n                          closeSuggestionsOnSelect) {\n            // Set some default values.\n            var options = {\n                selector: selector,\n                tags: false,\n                ajax: false,\n                placeholder: placeholder,\n                caseSensitive: false,\n                showSuggestions: true,\n                noSelectionString: noSelectionString\n            };\n            var pendingKey = 'autocomplete-setup-' + selector;\n            M.util.js_pending(pendingKey);\n            if (typeof tags !== \"undefined\") {\n                options.tags = tags;\n            }\n            if (typeof ajax !== \"undefined\") {\n                options.ajax = ajax;\n            }\n            if (typeof caseSensitive !== \"undefined\") {\n                options.caseSensitive = caseSensitive;\n            }\n            if (typeof showSuggestions !== \"undefined\") {\n                options.showSuggestions = showSuggestions;\n            }\n            if (typeof noSelectionString === \"undefined\") {\n                str.get_string('noselection', 'form').done(function(result) {\n                    options.noSelectionString = result;\n                }).fail(notification.exception);\n            }\n\n            // Look for the select element.\n            var originalSelect = $(selector);\n            if (!originalSelect) {\n                log.debug('Selector not found: ' + selector);\n                M.util.js_complete(pendingKey);\n                return false;\n            }\n\n            originalSelect.css('visibility', 'hidden').attr('aria-hidden', true);\n\n            // Hide the original select.\n\n            // Find or generate some ids.\n            var state = {\n                selectId: originalSelect.attr('id'),\n                inputId: 'form_autocomplete_input-' + uniqueId,\n                suggestionsId: 'form_autocomplete_suggestions-' + uniqueId,\n                selectionId: 'form_autocomplete_selection-' + uniqueId,\n                downArrowId: 'form_autocomplete_downarrow-' + uniqueId\n            };\n\n            // Increment the unique counter so we don't get duplicates ever.\n            uniqueId++;\n\n            options.multiple = originalSelect.attr('multiple');\n\n            if (typeof closeSuggestionsOnSelect !== \"undefined\") {\n                options.closeSuggestionsOnSelect = closeSuggestionsOnSelect;\n            } else {\n                // If not specified, this will close suggestions by default for single-select elements only.\n                options.closeSuggestionsOnSelect = !options.multiple;\n            }\n\n            var originalLabel = $('[for=' + state.selectId + ']');\n            // Create the new markup and insert it after the select.\n            var suggestions = [];\n            originalSelect.children('option').each(function(index, option) {\n                suggestions[index] = {label: option.innerHTML, value: $(option).attr('value')};\n            });\n\n            // Render all the parts of our UI.\n            var context = $.extend({}, options, state);\n            context.options = suggestions;\n            context.items = [];\n\n            // Collect rendered inline JS to be executed once the HTML is shown.\n            var collectedjs = '';\n\n            var renderInput = templates.render('core/form_autocomplete_input', context).then(function(html, js) {\n                collectedjs += js;\n                return html;\n            });\n\n            var renderDatalist = templates.render('core/form_autocomplete_suggestions', context).then(function(html, js) {\n                collectedjs += js;\n                return html;\n            });\n\n            var renderSelection = templates.render('core/form_autocomplete_selection', context).then(function(html, js) {\n                collectedjs += js;\n                return html;\n            });\n\n            return $.when(renderInput, renderDatalist, renderSelection)\n            .then(function(input, suggestions, selection) {\n                originalSelect.hide();\n                originalSelect.after(suggestions);\n                originalSelect.after(input);\n                originalSelect.after(selection);\n\n                templates.runTemplateJS(collectedjs);\n\n                // Update the form label to point to the text input.\n                originalLabel.attr('for', state.inputId);\n                // Add the event handlers.\n                addNavigation(options, state, originalSelect);\n\n                var suggestionsElement = $(document.getElementById(state.suggestionsId));\n                // Hide the suggestions by default.\n                suggestionsElement.hide().attr('aria-hidden', true);\n\n                return;\n            })\n            .then(function() {\n                // Show the current values in the selection list.\n                return updateSelectionList(options, state, originalSelect);\n            })\n            .then(function() {\n                return M.util.js_complete(pendingKey);\n            })\n            .catch(function(error) {\n                M.util.js_complete(pendingKey);\n                notification.exception(error);\n            });\n        }\n    };\n});\n"],"file":"form-autocomplete.min.js"}
\ No newline at end of file
diff --git a/lib/amd/src/form-autocomplete.js b/lib/amd/src/form-autocomplete.js
index a3be9b6ef4ebc..2cffd175e611b 100644
--- a/lib/amd/src/form-autocomplete.js
+++ b/lib/amd/src/form-autocomplete.js
@@ -114,7 +114,7 @@ function($, log, str, templates, notification, LoadingIcon) {
         });
         var context = $.extend({items: items}, options, state);
         // Render the template.
-        return templates.render('core/form_autocomplete_selection', context)
+        return templates.render('core/form_autocomplete_selection_items', context)
         .then(function(html, js) {
             // Add it to the page.
             templates.replaceNodeContents(newSelection, html, js);
diff --git a/lib/templates/form_autocomplete_selection.mustache b/lib/templates/form_autocomplete_selection.mustache
index 33c7b6c82e185..932ad376952e1 100644
--- a/lib/templates/form_autocomplete_selection.mustache
+++ b/lib/templates/form_autocomplete_selection.mustache
@@ -17,7 +17,7 @@
 {{!
     @template core/form_autocomplete_selection
 
-    Moodle template for the currently selected items in an autocomplate form element.
+    Moodle template for the wrapper of currently selected items in an autocomplate form element.
 
     Classes required for JS:
     * none
@@ -28,8 +28,8 @@
     Context variables required for this template:
     * multiple True if this field allows multiple selections
     * selectionId The dom id of the current selection list.
-    * items List of items with label and value fields.
-    * noSelectionString String to use when no items are selected
+    * items List of items with label and value fields (used by the partial).
+    * noSelectionString String to use when no items are selected (used by the partial).
 
     Example context (json):
     { "multiple": true, "selectionId": 1, "items": [
@@ -39,12 +39,5 @@
 }}
 <div class="form-autocomplete-selection w-100 {{#multiple}}form-autocomplete-multiple{{/multiple}}" id="{{selectionId}}" role="list" aria-atomic="true" {{#multiple}}tabindex="0" aria-multiselectable="true"{{/multiple}}>
 <span class="accesshide">{{#str}}selecteditems, form{{/str}}</span>
-    {{#items}}
-        <span role="listitem" data-value="{{value}}" aria-selected="true" class="badge badge-info mb-3 mr-1" style="font-size: 100%">
-            <span aria-hidden="true">× </span>{{{label}}}
-        </span>
-    {{/items}}
-    {{^items}}
-        <span class="mb-3 mr-1">{{noSelectionString}}</span>
-    {{/items}}
+    {{> core/form_autocomplete_selection_items }}
 </div>
diff --git a/lib/templates/form_autocomplete_selection_items.mustache b/lib/templates/form_autocomplete_selection_items.mustache
new file mode 100644
index 0000000000000..22ff5f2c48ec7
--- /dev/null
+++ b/lib/templates/form_autocomplete_selection_items.mustache
@@ -0,0 +1,47 @@
+{{!
+    This file is part of Moodle - http://moodle.org/
+
+    Moodle is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    Moodle is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+}}
+{{!
+    @template core/form_autocomplete_selection_items
+
+    Moodle template for the currently selected items in an autocomplate form element.
+
+    Classes required for JS:
+    * none
+
+    Data attributes required for JS:
+    * data-value
+
+    Context variables required for this template:
+    * items List of items with label and value fields.
+    *   - value Value of the selected item.
+    *   - label HTML representing the value.
+    * noSelectionString String to use when no items are selected
+
+    Example context (json):
+    { "items": [
+        { "label": "Item label with <strong>tags</strong>", "value": "5" },
+        { "label": "Another item label with <strong>tags</strong>", "value": "4" }
+    ], "noSelectionString": "No selection" }
+}}
+{{#items}}
+    <span role="listitem" data-value="{{value}}" aria-selected="true" class="badge badge-info mb-3 mr-1" style="font-size: 100%">
+        <span aria-hidden="true">× </span>{{{label}}}
+    </span>
+{{/items}}
+{{^items}}
+    <span class="mb-3 mr-1">{{noSelectionString}}</span>
+{{/items}}