diff --git a/calendar/tests/behat/behat_calendar.php b/calendar/tests/behat/behat_calendar.php
index 44b11d31e276a..fc53c18233caa 100644
--- a/calendar/tests/behat/behat_calendar.php
+++ b/calendar/tests/behat/behat_calendar.php
@@ -176,7 +176,23 @@ private function view_the_calendar(string $type, int $day, int $month, int $year
      * @return void
      */
     public function i_am_viewing_site_calendar() {
-        $url = new moodle_url('/calendar/view.php', ['view' => 'month']);
+        $this->i_am_viewing_calendar_in_view('month');
+    }
+
+    /**
+     * Navigate to a specific view in the calendar.
+     *
+     * @Given /^I am viewing calendar in "([^"]+)" view$/
+     * @param string $view The calendar view ('month', 'day' and 'upcoming') to navigate to.
+     * @return void
+     */
+    public function i_am_viewing_calendar_in_view(string $view): void {
+
+        if (!in_array($view, ['month', 'day', 'upcoming'])) {
+            throw new Exception("Invalid calendar view. Allowed values are: 'month', 'day' and 'upcoming'");
+        }
+
+        $url = new moodle_url('/calendar/view.php', ['view' => $view]);
         $this->execute('behat_general::i_visit', [$url]);
     }
 }
diff --git a/lib/amd/build/str.min.js b/lib/amd/build/str.min.js
index 968475bfb2e44..bdf12dea0145a 100644
--- a/lib/amd/build/str.min.js
+++ b/lib/amd/build/str.min.js
@@ -1,4 +1,4 @@
-define("core/str",["exports","jquery","core/ajax","core/localstorage"],(function(_exports,_jquery,_ajax,_localstorage){function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj}}
+define("core/str",["exports","jquery","core/ajax","core/config","core/localstorage"],(function(_exports,_jquery,_ajax,_config,_localstorage){function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj}}
 /**
    * Fetch and return language strings.
    *
@@ -7,6 +7,6 @@ define("core/str",["exports","jquery","core/ajax","core/localstorage"],(function
    * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
    * @since      2.9
    *
-   */Object.defineProperty(_exports,"__esModule",{value:!0}),_exports.get_strings=_exports.get_string=_exports.cache_strings=void 0,_jquery=_interopRequireDefault(_jquery),_ajax=_interopRequireDefault(_ajax),_localstorage=_interopRequireDefault(_localstorage);let promiseCache=[];_exports.get_string=(key,component,param,lang)=>get_strings([{key:key,component:component,param:param,lang:lang}]).then((results=>results[0]));const get_strings=requests=>{let requestData=[];const pageLang=(0,_jquery.default)("html").attr("lang").replace(/-/g,"_"),stringPromises=requests.map((request=>{let{component:component,key:key,param:param,lang:lang=pageLang}=request;component||(component="core");const cacheKey=(_ref=>{let{key:key,component:component,lang:lang=pageLang}=_ref;return"core_str/".concat(key,"/").concat(component,"/").concat(lang)})({key:key,component:component,lang:lang}),buildReturn=promise=>(promiseCache[cacheKey]=promise,promise);if(component in M.str&&key in M.str[component])return buildReturn(new Promise((resolve=>{resolve(M.util.get_string(key,component,param,lang))})));const cached=_localstorage.default.get(cacheKey);return cached?(M.str[component]={...M.str[component],[key]:cached},buildReturn(new Promise((resolve=>{resolve(M.util.get_string(key,component,param,lang))})))):cacheKey in promiseCache?buildReturn(promiseCache[cacheKey]).then((()=>M.util.get_string(key,component,param,lang))):buildReturn(new Promise(((resolve,reject)=>{requestData.push({methodname:"core_get_string",args:{stringid:key,stringparams:[],component:component,lang:lang},done:str=>{M.str[component]={...M.str[component],[key]:str},_localstorage.default.set(cacheKey,str),resolve(M.util.get_string(key,component,param,lang))},fail:reject})})))}));return requestData.length&&_ajax.default.call(requestData,!0,!1,!1,0,M.cfg.langrev),_jquery.default.when.apply(_jquery.default,stringPromises).then((function(){for(var _len=arguments.length,strings=new Array(_len),_key=0;_key<_len;_key++)strings[_key]=arguments[_key];return strings}))};_exports.get_strings=get_strings;_exports.cache_strings=strings=>{const defaultLang=(0,_jquery.default)("html").attr("lang").replace(/-/g,"_");strings.forEach((_ref2=>{let{key:key,component:component,value:value,lang:lang=defaultLang}=_ref2;const cacheKey=["core_str",key,component,lang].join("/");component in M.str&&key in M.str[component]||(component in M.str||(M.str[component]={}),M.str[component][key]=value),_localstorage.default.get(cacheKey)||_localstorage.default.set(cacheKey,value),cacheKey in promiseCache||(promiseCache[cacheKey]=_jquery.default.Deferred().resolve(value).promise())}))}}));
+   */Object.defineProperty(_exports,"__esModule",{value:!0}),_exports.get_strings=_exports.get_string=_exports.cache_strings=void 0,_jquery=_interopRequireDefault(_jquery),_ajax=_interopRequireDefault(_ajax),_config=_interopRequireDefault(_config),_localstorage=_interopRequireDefault(_localstorage);let promiseCache=[];_exports.get_string=(key,component,param,lang)=>get_strings([{key:key,component:component,param:param,lang:lang}]).then((results=>results[0]));const get_strings=requests=>{let requestData=[];const pageLang=_config.default.language,stringPromises=requests.map((request=>{let{component:component,key:key,param:param,lang:lang=pageLang}=request;component||(component="core");const cacheKey=(_ref=>{let{key:key,component:component,lang:lang=pageLang}=_ref;return"core_str/".concat(key,"/").concat(component,"/").concat(lang)})({key:key,component:component,lang:lang}),buildReturn=promise=>(promiseCache[cacheKey]=promise,promise);if(component in M.str&&key in M.str[component])return buildReturn(new Promise((resolve=>{resolve(M.util.get_string(key,component,param,lang))})));const cached=_localstorage.default.get(cacheKey);return cached?(M.str[component]={...M.str[component],[key]:cached},buildReturn(new Promise((resolve=>{resolve(M.util.get_string(key,component,param,lang))})))):cacheKey in promiseCache?buildReturn(promiseCache[cacheKey]).then((()=>M.util.get_string(key,component,param,lang))):buildReturn(new Promise(((resolve,reject)=>{requestData.push({methodname:"core_get_string",args:{stringid:key,stringparams:[],component:component,lang:lang},done:str=>{M.str[component]={...M.str[component],[key]:str},_localstorage.default.set(cacheKey,str),resolve(M.util.get_string(key,component,param,lang))},fail:reject})})))}));return requestData.length&&_ajax.default.call(requestData,!0,!1,!1,0,M.cfg.langrev),_jquery.default.when.apply(_jquery.default,stringPromises).then((function(){for(var _len=arguments.length,strings=new Array(_len),_key=0;_key<_len;_key++)strings[_key]=arguments[_key];return strings}))};_exports.get_strings=get_strings;_exports.cache_strings=strings=>{strings.forEach((_ref2=>{let{key:key,component:component,value:value,lang:lang=_config.default.language}=_ref2;const cacheKey=["core_str",key,component,lang].join("/");component in M.str&&key in M.str[component]||(component in M.str||(M.str[component]={}),M.str[component][key]=value),_localstorage.default.get(cacheKey)||_localstorage.default.set(cacheKey,value),cacheKey in promiseCache||(promiseCache[cacheKey]=_jquery.default.Deferred().resolve(value).promise())}))}}));
 
 //# sourceMappingURL=str.min.js.map
\ No newline at end of file
diff --git a/lib/amd/build/str.min.js.map b/lib/amd/build/str.min.js.map
index d1fdc49e74e9d..c7635e29f5270 100644
--- a/lib/amd/build/str.min.js.map
+++ b/lib/amd/build/str.min.js.map
@@ -1 +1 @@
-{"version":3,"file":"str.min.js","sources":["../src/str.js"],"sourcesContent":["// 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 * Fetch and return language strings.\n *\n * @module     core/str\n * @copyright  2015 Damyon Wiese <damyon@moodle.com>\n * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later\n * @since      2.9\n *\n */\nimport $ from 'jquery';\nimport Ajax from 'core/ajax';\nimport LocalStorage from 'core/localstorage';\n\n// Module cache for the promises so that we don't make multiple\n// unnecessary requests.\nlet promiseCache = [];\n\n/* eslint-disable no-restricted-properties */\n\n/**\n * Return a Promise that resolves to a string.\n *\n * If the string has previously been cached, then the Promise will be resolved immediately, otherwise it will be fetched\n * from the server and resolved when available.\n *\n * @method get_string\n * @param {string} key The language string key\n * @param {string} component The language string component\n * @param {string} param The param for variable expansion in the string.\n * @param {string} lang The users language - if not passed it is deduced.\n * @return {Promise}\n *\n * @example <caption>Fetching a string</caption>\n *\n * import {get_string as getString} from 'core/str';\n * get_string('cannotfindteacher', 'error')\n * .then(str => {\n *     window.console.log(str); // Cannot find teacher\n * })\n * .catch();\n */\n// eslint-disable-next-line camelcase\nexport const get_string = (key, component, param, lang) => {\n    return get_strings([{key, component, param, lang}])\n        .then(results => results[0]);\n};\n\n/**\n * Make a batch request to load a set of strings.\n *\n * Any missing string will be fetched from the server.\n * The Promise will only be resolved once all strings are available, or an attempt has been made to fetch them.\n *\n * @method get_strings\n * @param {Object[]} requests List of strings to fetch\n * @param {string} requests.key The string identifer to fetch\n * @param {string} [requests.component='core'] The componet to fetch from\n * @param {string} [requests.lang] The language to fetch a string for. Defaults to current page language.\n * @param {object|string} [requests.param] The param for variable expansion in the string.\n * @return {Promise[]}\n *\n * @example <caption>Fetching a set of strings</caption>\n *\n * import {get_strings as getStrings} from 'core/str';\n * get_strings([\n *     {\n *         key: 'cannotfindteacher',\n *         component: 'error',\n *     },\n *     {\n *         key: 'yes',\n *         component: 'core',\n *     },\n *     {\n *         key: 'no',\n *         component: 'core',\n *     },\n * ])\n * .then((cannotFindTeacher, yes, no) => {\n *     window.console.log(cannotFindTeacher); // Cannot find teacher\n *     window.console.log(yes); // Yes\n *     window.console.log(no); // No\n * })\n * .catch();\n */\n// eslint-disable-next-line camelcase\nexport const get_strings = (requests) => {\n    let requestData = [];\n    const pageLang = $('html').attr('lang').replace(/-/g, '_');\n\n    // Helper function to construct the cache key.\n    const getCacheKey = ({key, component, lang = pageLang}) => `core_str/${key}/${component}/${lang}`;\n\n    const stringPromises = requests.map((request) => {\n        let {component, key, param, lang = pageLang} = request;\n        if (!component) {\n            component = 'core';\n        }\n\n        const cacheKey = getCacheKey({key, component, lang});\n\n        // Helper function to add the promise to cache.\n        const buildReturn = (promise) => {\n            // Make sure the promise cache contains our promise.\n            promiseCache[cacheKey] = promise;\n            return promise;\n        };\n\n        // Check if we can serve the string straight from M.str.\n        if (component in M.str && key in M.str[component]) {\n            return buildReturn(new Promise((resolve) => {\n                resolve(M.util.get_string(key, component, param, lang));\n            }));\n        }\n\n        // Check if the string is in the browser's local storage.\n        const cached = LocalStorage.get(cacheKey);\n        if (cached) {\n            M.str[component] = {...M.str[component], [key]: cached};\n            return buildReturn(new Promise((resolve) => {\n                resolve(M.util.get_string(key, component, param, lang));\n            }));\n        }\n\n        // Check if we've already loaded this string from the server.\n        if (cacheKey in promiseCache) {\n            return buildReturn(promiseCache[cacheKey]).then(() => {\n                return M.util.get_string(key, component, param, lang);\n            });\n        } else {\n            // We're going to have to ask the server for the string so\n            // add this string to the list of requests to be sent.\n            return buildReturn(new Promise((resolve, reject) => {\n                requestData.push({\n                    methodname: 'core_get_string',\n                    args: {\n                        stringid: key,\n                        stringparams: [],\n                        component,\n                        lang,\n                    },\n                    done: (str) => {\n                        // When we get the response from the server\n                        // we should update M.str and the browser's\n                        // local storage before resolving this promise.\n                        M.str[component] = {...M.str[component], [key]: str};\n                        LocalStorage.set(cacheKey, str);\n                        resolve(M.util.get_string(key, component, param, lang));\n                    },\n                    fail: reject\n                });\n            }));\n        }\n    });\n\n    if (requestData.length) {\n        // If we need to load any strings from the server then send\n        // off the request.\n        Ajax.call(requestData, true, false, false, 0, M.cfg.langrev);\n    }\n\n    // We need to use jQuery here because some calling code uses the\n    // .done handler instead of the .then handler.\n    return $.when.apply($, stringPromises)\n        .then((...strings) => strings);\n};\n\n/**\n * Add a list of strings to the caches.\n *\n * This function should typically only be called from core APIs to pre-cache values.\n *\n * @method cache_strings\n * @protected\n * @param {Object[]} strings List of strings to fetch\n * @param {string} strings.key The string identifer to fetch\n * @param {string} strings.value The string value\n * @param {string} [strings.component='core'] The componet to fetch from\n * @param {string} [strings.lang] The language to fetch a string for. 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\ No newline at end of file
+{"version":3,"file":"str.min.js","sources":["../src/str.js"],"sourcesContent":["// 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 * Fetch and return language strings.\n *\n * @module     core/str\n * @copyright  2015 Damyon Wiese <damyon@moodle.com>\n * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later\n * @since      2.9\n *\n */\nimport $ from 'jquery';\nimport Ajax from 'core/ajax';\nimport Config from 'core/config';\nimport LocalStorage from 'core/localstorage';\n\n// Module cache for the promises so that we don't make multiple\n// unnecessary requests.\nlet promiseCache = [];\n\n/* eslint-disable no-restricted-properties */\n\n/**\n * Return a Promise that resolves to a string.\n *\n * If the string has previously been cached, then the Promise will be resolved immediately, otherwise it will be fetched\n * from the server and resolved when available.\n *\n * @method get_string\n * @param {string} key The language string key\n * @param {string} component The language string component\n * @param {string} param The param for variable expansion in the string.\n * @param {string} lang The users language - if not passed it is deduced.\n * @return {Promise}\n *\n * @example <caption>Fetching a string</caption>\n *\n * import {get_string as getString} from 'core/str';\n * get_string('cannotfindteacher', 'error')\n * .then(str => {\n *     window.console.log(str); // Cannot find teacher\n * })\n * .catch();\n */\n// eslint-disable-next-line camelcase\nexport const get_string = (key, component, param, lang) => {\n    return get_strings([{key, component, param, lang}])\n        .then(results => results[0]);\n};\n\n/**\n * Make a batch request to load a set of strings.\n *\n * Any missing string will be fetched from the server.\n * The Promise will only be resolved once all strings are available, or an attempt has been made to fetch them.\n *\n * @method get_strings\n * @param {Object[]} requests List of strings to fetch\n * @param {string} requests.key The string identifer to fetch\n * @param {string} [requests.component='core'] The componet to fetch from\n * @param {string} [requests.lang] The language to fetch a string for. Defaults to current page language.\n * @param {object|string} [requests.param] The param for variable expansion in the string.\n * @return {Promise[]}\n *\n * @example <caption>Fetching a set of strings</caption>\n *\n * import {get_strings as getStrings} from 'core/str';\n * get_strings([\n *     {\n *         key: 'cannotfindteacher',\n *         component: 'error',\n *     },\n *     {\n *         key: 'yes',\n *         component: 'core',\n *     },\n *     {\n *         key: 'no',\n *         component: 'core',\n *     },\n * ])\n * .then((cannotFindTeacher, yes, no) => {\n *     window.console.log(cannotFindTeacher); // Cannot find teacher\n *     window.console.log(yes); // Yes\n *     window.console.log(no); // No\n * })\n * .catch();\n */\n// eslint-disable-next-line camelcase\nexport const get_strings = (requests) => {\n    let requestData = [];\n    const pageLang = Config.language;\n\n    // Helper function to construct the cache key.\n    const getCacheKey = ({key, component, lang = pageLang}) => `core_str/${key}/${component}/${lang}`;\n\n    const stringPromises = requests.map((request) => {\n        let {component, key, param, lang = pageLang} = request;\n        if (!component) {\n            component = 'core';\n        }\n\n        const cacheKey = getCacheKey({key, component, lang});\n\n        // Helper function to add the promise to cache.\n        const buildReturn = (promise) => {\n            // Make sure the promise cache contains our promise.\n            promiseCache[cacheKey] = promise;\n            return promise;\n        };\n\n        // Check if we can serve the string straight from M.str.\n        if (component in M.str && key in M.str[component]) {\n            return buildReturn(new Promise((resolve) => {\n                resolve(M.util.get_string(key, component, param, lang));\n            }));\n        }\n\n        // Check if the string is in the browser's local storage.\n        const cached = LocalStorage.get(cacheKey);\n        if (cached) {\n            M.str[component] = {...M.str[component], [key]: cached};\n            return buildReturn(new Promise((resolve) => {\n                resolve(M.util.get_string(key, component, param, lang));\n            }));\n        }\n\n        // Check if we've already loaded this string from the server.\n        if (cacheKey in promiseCache) {\n            return buildReturn(promiseCache[cacheKey]).then(() => {\n                return M.util.get_string(key, component, param, lang);\n            });\n        } else {\n            // We're going to have to ask the server for the string so\n            // add this string to the list of requests to be sent.\n            return buildReturn(new Promise((resolve, reject) => {\n                requestData.push({\n                    methodname: 'core_get_string',\n                    args: {\n                        stringid: key,\n                        stringparams: [],\n                        component,\n                        lang,\n                    },\n                    done: (str) => {\n                        // When we get the response from the server\n                        // we should update M.str and the browser's\n                        // local storage before resolving this promise.\n                        M.str[component] = {...M.str[component], [key]: str};\n                        LocalStorage.set(cacheKey, str);\n                        resolve(M.util.get_string(key, component, param, lang));\n                    },\n                    fail: reject\n                });\n            }));\n        }\n    });\n\n    if (requestData.length) {\n        // If we need to load any strings from the server then send\n        // off the request.\n        Ajax.call(requestData, true, false, false, 0, M.cfg.langrev);\n    }\n\n    // We need to use jQuery here because some calling code uses the\n    // .done handler instead of the .then handler.\n    return $.when.apply($, stringPromises)\n        .then((...strings) => strings);\n};\n\n/**\n * Add a list of strings to the caches.\n *\n * This function should typically only be called from core APIs to pre-cache values.\n *\n * @method cache_strings\n * @protected\n * @param {Object[]} strings List of strings to fetch\n * @param {string} strings.key The string identifer to fetch\n * @param {string} strings.value The string value\n * @param {string} [strings.component='core'] The componet to fetch from\n * @param {string} [strings.lang=Config.language] The language to fetch a string for. Defaults to current page language.\n */\n// eslint-disable-next-line camelcase\nexport const cache_strings = (strings) => {\n    strings.forEach(({key, component, value, lang = Config.language}) => {\n        const cacheKey = ['core_str', key, component, lang].join('/');\n\n        // Check M.str caching.\n        if (!(component in M.str) || !(key in M.str[component])) {\n            if (!(component in M.str)) {\n                M.str[component] = {};\n            }\n\n            M.str[component][key] = value;\n        }\n\n        // Check local storage.\n        if (!LocalStorage.get(cacheKey)) {\n            LocalStorage.set(cacheKey, value);\n        }\n\n        // Check the promises cache.\n        if (!(cacheKey in promiseCache)) {\n            promiseCache[cacheKey] = $.Deferred().resolve(value).promise();\n        }\n    });\n};\n/* eslint-enable no-restricted-properties */\n"],"names":["promiseCache","key","component","param","lang","get_strings","then","results","requests","requestData","pageLang","Config","language","stringPromises","map","request","cacheKey","_ref","getCacheKey","buildReturn","promise","M","str","Promise","resolve","util","get_string","cached","LocalStorage","get","reject","push","methodname","args","stringid","stringparams","done","set","fail","length","call","cfg","langrev","$","when","apply","strings","forEach","_ref2","value","join","Deferred"],"mappings":";;;;;;;;;gTA+BIA,aAAe,uBA2BO,CAACC,IAAKC,UAAWC,MAAOC,OACvCC,YAAY,CAAC,CAACJ,IAAAA,IAAKC,UAAAA,UAAWC,MAAAA,MAAOC,KAAAA,QACvCE,MAAKC,SAAWA,QAAQ,WA0CpBF,YAAeG,eACpBC,YAAc,SACZC,SAAWC,gBAAOC,SAKlBC,eAAiBL,SAASM,KAAKC,cAC7Bb,UAACA,UAADD,IAAYA,IAAZE,MAAiBA,MAAjBC,KAAwBA,KAAOM,UAAYK,QAC1Cb,YACDA,UAAY,cAGVc,SARUC,CAAAA,WAAChB,IAACA,IAADC,UAAMA,UAANE,KAAiBA,KAAOM,wCAA0BT,gBAAOC,sBAAaE,OAQtEc,CAAY,CAACjB,IAAAA,IAAKC,UAAAA,UAAWE,KAAAA,OAGxCe,YAAeC,UAEjBpB,aAAagB,UAAYI,QAClBA,YAIPlB,aAAamB,EAAEC,KAAOrB,OAAOoB,EAAEC,IAAIpB,kBAC5BiB,YAAY,IAAII,SAASC,UAC5BA,QAAQH,EAAEI,KAAKC,WAAWzB,IAAKC,UAAWC,MAAOC,iBAKnDuB,OAASC,sBAAaC,IAAIb,iBAC5BW,QACAN,EAAEC,IAAIpB,WAAa,IAAImB,EAAEC,IAAIpB,YAAaD,KAAM0B,QACzCR,YAAY,IAAII,SAASC,UAC5BA,QAAQH,EAAEI,KAAKC,WAAWzB,IAAKC,UAAWC,MAAOC,YAKrDY,YAAYhB,aACLmB,YAAYnB,aAAagB,WAAWV,MAAK,IACrCe,EAAEI,KAAKC,WAAWzB,IAAKC,UAAWC,MAAOC,QAK7Ce,YAAY,IAAII,SAAQ,CAACC,QAASM,UACrCrB,YAAYsB,KAAK,CACbC,WAAY,kBACZC,KAAM,CACFC,SAAUjC,IACVkC,aAAc,GACdjC,UAAAA,UACAE,KAAAA,MAEJgC,KAAOd,MAIHD,EAAEC,IAAIpB,WAAa,IAAImB,EAAEC,IAAIpB,YAAaD,KAAMqB,2BACnCe,IAAIrB,SAAUM,KAC3BE,QAAQH,EAAEI,KAAKC,WAAWzB,IAAKC,UAAWC,MAAOC,QAErDkC,KAAMR,uBAMlBrB,YAAY8B,sBAGPC,KAAK/B,aAAa,GAAM,GAAO,EAAO,EAAGY,EAAEoB,IAAIC,SAKjDC,gBAAEC,KAAKC,MAAMF,gBAAG9B,gBAClBP,MAAK,yCAAIwC,gDAAAA,qCAAYA,oEAiBAA,UAC1BA,QAAQC,SAAQC,YAAC/C,IAACA,IAADC,UAAMA,UAAN+C,MAAiBA,MAAjB7C,KAAwBA,KAAOO,gBAAOC,sBAC7CI,SAAW,CAAC,WAAYf,IAAKC,UAAWE,MAAM8C,KAAK,KAGnDhD,aAAamB,EAAEC,KAAUrB,OAAOoB,EAAEC,IAAIpB,aAClCA,aAAamB,EAAEC,MACjBD,EAAEC,IAAIpB,WAAa,IAGvBmB,EAAEC,IAAIpB,WAAWD,KAAOgD,OAIvBrB,sBAAaC,IAAIb,iCACLqB,IAAIrB,SAAUiC,OAIzBjC,YAAYhB,eACdA,aAAagB,UAAY2B,gBAAEQ,WAAW3B,QAAQyB,OAAO7B"}
\ No newline at end of file
diff --git a/lib/amd/build/templates.min.js b/lib/amd/build/templates.min.js
index c33aa8dd70d17..e2995967528a2 100644
--- a/lib/amd/build/templates.min.js
+++ b/lib/amd/build/templates.min.js
@@ -6,6 +6,6 @@
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  * @since      2.9
  */
-define("core/templates",["core/mustache","jquery","core/ajax","core/str","core/notification","core/url","core/config","core/localstorage","core/icon_system","core_filters/events","core/yui","core/log","core/truncate","core/user_date","core/pending"],(function(mustache,$,ajax,str,notification,coreurl,config,storage,IconSystem,filterEvents,Y,Log,Truncate,UserDate,Pending){var uniqInstances=0,templateCache={},templatePromises={},cachePartialPromises={},iconSystem={},loadTemplateBuffer=[],isLoadingTemplates=!1,disallowedNestedHelpers=["js"],getNormalisedComponent=function(component){return component&&"moodle"!==component&&"core"!==component?component:"core"},getTemplatePromiseFromCache=function(searchKey){if(searchKey in templatePromises)return templatePromises[searchKey];if(searchKey in templateCache)return templatePromises[searchKey]=$.Deferred().resolve(templateCache[searchKey]).promise(),templatePromises[searchKey];if(M.cfg.templaterev<=0)return null;var cached=storage.get("core_template/"+M.cfg.templaterev+":"+searchKey);return cached?(templateCache[searchKey]=cached,templatePromises[searchKey]=$.Deferred().resolve(cached).promise(),templatePromises[searchKey]):null},processLoadTemplateBuffer=function(){if(loadTemplateBuffer.length&&!isLoadingTemplates){isLoadingTemplates=!0;var templatesToLoad=loadTemplateBuffer.slice(),serverRequestsDeferred=$.Deferred(),requests=[],templatePromises=templatesToLoad.map((function(templateData){var component=getNormalisedComponent(templateData.component),name=templateData.name,searchKey=templateData.searchKey,theme=templateData.theme,templateDeferred=templateData.deferred,promise=null,cachedPromise=getTemplatePromiseFromCache(searchKey);if(cachedPromise)promise=cachedPromise;else{requests.push({methodname:"core_output_load_template_with_dependencies",args:{component:component,template:name,themename:theme,lang:$("html").attr("lang").replace(/-/g,"_")}});var index=requests.length-1;promise=serverRequestsDeferred.promise().then((function(promises){return templatePromises[searchKey]=promises[index].then((function(response){var templateSource=null;return response.templates.forEach((function(data){data.component=getNormalisedComponent(data.component);var tempSearchKey=[theme,data.component,data.name].join("/");templateCache[tempSearchKey]=data.value,M.cfg.templaterev>0&&storage.set("core_template/"+M.cfg.templaterev+":"+tempSearchKey,data.value),data.component==component&&data.name==name&&(templateSource=data.value)})),response.strings.length&&str.cache_strings(response.strings.map((function(data){return{component:getNormalisedComponent(data.component),key:data.name,value:data.value}}))),templateSource})),templatePromises[searchKey]}))}return promise.then((function(source){return templateDeferred.resolve(source)})).catch((function(error){throw templateDeferred.reject(error),error}))}));requests.length?serverRequestsDeferred.resolve(ajax.call(requests,!0,!1,!1,0,M.cfg.templaterev)):serverRequestsDeferred.resolve(),$.when.apply(null,templatePromises).then((function(){loadTemplateBuffer.splice(0,templatesToLoad.length),isLoadingTemplates=!1,processLoadTemplateBuffer()})).catch((function(){loadTemplateBuffer.splice(0,templatesToLoad.length),isLoadingTemplates=!1,processLoadTemplateBuffer()}))}},Renderer=function(){this.requiredStrings=[],this.requiredJS=[],this.requiredDates=[],this.currentThemeName=""};Renderer.prototype.requiredStrings=null,Renderer.prototype.requiredDates=[],Renderer.prototype.requiredJS=null,Renderer.prototype.currentThemeName="",Renderer.prototype.getTemplate=function(templateName){var currentTheme=this.currentThemeName,searchKey=currentTheme+"/"+templateName,cachedPromise=getTemplatePromiseFromCache(searchKey);if(cachedPromise)return cachedPromise;var existingBufferRecords=loadTemplateBuffer.filter((function(record){return record.searchKey==searchKey}));if(existingBufferRecords.length)return existingBufferRecords[0].deferred.promise();var parts=templateName.split("/"),component=getNormalisedComponent(parts.shift()),name=parts.join("/"),deferred=$.Deferred();return loadTemplateBuffer.push({component:component,name:name,theme:currentTheme,searchKey:searchKey,deferred:deferred}),processLoadTemplateBuffer(),deferred.promise()},Renderer.prototype.prefetchTemplates=function(templateNames,currentTheme){templateNames.forEach((function(templateName){var searchKey=currentTheme+"/"+templateName;if(!getTemplatePromiseFromCache(searchKey)&&!loadTemplateBuffer.filter((function(record){return record.searchKey==searchKey})).length){var parts=templateName.split("/"),component=getNormalisedComponent(parts.shift()),name=parts.join("/");loadTemplateBuffer.push({component:component,name:name,theme:currentTheme,searchKey:searchKey,deferred:$.Deferred()})}})),processLoadTemplateBuffer()},Renderer.prototype.partialHelper=function(name){var searchKey=this.currentThemeName+"/"+name;return searchKey in templateCache||notification.exception(new Error("Failed to pre-fetch the template: "+name)),templateCache[searchKey]},Renderer.prototype.renderIcon=function(key,component,title){var modulename=config.iconsystemmodule;component=getNormalisedComponent(component);var ready=$.Deferred();return require([modulename],(function(System){var system=new System;system instanceof IconSystem?(iconSystem=system,system.init().then(ready.resolve).catch(notification.exception)):ready.reject("Invalid icon system specified"+config.iconsystemmodule)})),ready.then(function(iconSystem){return this.getTemplate(iconSystem.getTemplateName())}.bind(this)).then((function(template){return iconSystem.renderIcon(key,component,title,template)}))},Renderer.prototype.pixHelper=function(context,sectionText,helper){var parts=sectionText.split(","),key="",component="",text="";parts.length>0&&(key=helper(parts.shift().trim(),context)),parts.length>0&&(component=helper(parts.shift().trim(),context)),parts.length>0&&(text=helper(parts.join(",").trim(),context));var templateName=iconSystem.getTemplateName(),searchKey=this.currentThemeName+"/"+templateName,template=templateCache[searchKey];return component=getNormalisedComponent(component),key=key.replace(/&#x2F;/gi,"/"),iconSystem.renderIcon(key,component,text,template)},Renderer.prototype.jsHelper=function(context,sectionText,helper){return this.requiredJS.push(helper(sectionText,context)),""},Renderer.prototype.stringHelper=function(context,sectionText,helper){var parts=sectionText.split(","),key="",component="",param="";if(parts.length>0&&(key=parts.shift().trim()),parts.length>0&&(component=parts.shift().trim()),parts.length>0&&(param=parts.join(",").trim()),component=getNormalisedComponent(component),""!==param&&(param=helper(param,context)),param.match(/^{\s*"/gm))try{const parsedParam=JSON.parse(param);parsedParam&&"object"==typeof parsedParam&&(param=parsedParam)}catch(err){window.console.warn(err.message)}var index=this.requiredStrings.length;return this.requiredStrings.push({key:key,component:component,param:param}),"[[_s"+index+"]]"},Renderer.prototype.cleanStringHelper=function(context,sectionText,helper){return this.stringHelper(context,sectionText,helper).replace("s","c")},Renderer.prototype.quoteHelper=function(context,sectionText,helper){var content=helper(sectionText.trim(),context);return content=(content=JSON.stringify(content)).replace(/([{}]{2,3})/g,"{{=<% %>=}}$1<%={{ }}=%>")},Renderer.prototype.shortenTextHelper=function(context,sectionText,helper){var parts=sectionText.match(/(.*?),(.*)/),length=parts[1].trim(),content=helper(parts[2].trim(),context);return Truncate.truncate(content,{length:length,words:!0,ellipsis:"..."})},Renderer.prototype.userDateHelper=function(context,sectionText,helper){var parts=sectionText.match(/(.*?),(.*)/),timestamp=helper(parts[1].trim(),context),format=helper(parts[2].trim(),context),index=this.requiredDates.length;return this.requiredDates.push({timestamp:timestamp,format:format}),"[[_t_"+index+"]]"},Renderer.prototype.addHelperFunction=function(helperFunction,context){return function(){return function(sectionText,helper){var originalHelpers=disallowedNestedHelpers.reduce((function(carry,name){return context.hasOwnProperty(name)&&(carry[name]=context[name]),carry}),{});disallowedNestedHelpers.forEach((function(helperName){context[helperName]=function(){return""}}));var result=helperFunction.apply(this,[context,sectionText,helper]);for(var name in originalHelpers)context[name]=originalHelpers[name];return result}.bind(this)}.bind(this)},Renderer.prototype.addHelpers=function(context,themeName){this.currentThemeName=themeName,this.requiredStrings=[],this.requiredJS=[],context.uniqid=uniqInstances++,context.str=this.addHelperFunction(this.stringHelper,context),context.cleanstr=this.addHelperFunction(this.cleanStringHelper,context),context.pix=this.addHelperFunction(this.pixHelper,context),context.js=this.addHelperFunction(this.jsHelper,context),context.quote=this.addHelperFunction(this.quoteHelper,context),context.shortentext=this.addHelperFunction(this.shortenTextHelper,context),context.userdate=this.addHelperFunction(this.userDateHelper,context),context.globals={config:config},context.currentTheme=themeName},Renderer.prototype.getJS=function(){var js="";return this.requiredJS.length>0&&(js=this.requiredJS.join(";\n")),js},Renderer.prototype.treatStringsInContent=function(content,strings){var treated,index,strIndex,walker,char,strFinal,isClean,pattern=/\[\[_(s|c)\d+\]\]/;do{for(treated="",index=content.search(pattern);index>-1;){treated+=content.substring(0,index),isClean="c"==(content=content.substr(index))[3],strIndex="",walker=4,char=content.substr(walker,1);do{strIndex+=char,walker++,char=content.substr(walker,1)}while("]"!=char);void 0===(strFinal=strings[parseInt(strIndex,10)])&&(Log.debug("Could not find string for pattern [[_"+(isClean?"c":"s")+strIndex+"]]."),strFinal=""),isClean&&(strFinal=mustache.escape(strFinal)),treated+=strFinal,index=(content=content.substr(6+strIndex.length)).search(pattern)}index=(content=treated+content).search(pattern)}while(index>-1);return content},Renderer.prototype.treatDatesInContent=function(content,dates){return dates.forEach((function(date,index){var re=new RegExp("\\[\\[_t_"+index+"\\]\\]","g");content=content.replace(re,date)})),content},Renderer.prototype.doRender=function(templateSource,context,themeName){this.currentThemeName=themeName;var iconTemplate=iconSystem.getTemplateName(),pendingPromise=new Pending("core/templates:doRender");return this.getTemplate(iconTemplate).then(function(){this.addHelpers(context,themeName);var result=mustache.render(templateSource,context,this.partialHelper.bind(this));return $.Deferred().resolve(result.trim(),this.getJS()).promise()}.bind(this)).then(function(html,js){return this.requiredStrings.length>0?str.get_strings(this.requiredStrings).then(function(strings){return this.requiredDates=this.requiredDates.map(function(date){return{timestamp:this.treatStringsInContent(date.timestamp,strings),format:this.treatStringsInContent(date.format,strings)}}.bind(this)),html=this.treatStringsInContent(html,strings),js=this.treatStringsInContent(js,strings),$.Deferred().resolve(html,js).promise()}.bind(this)):$.Deferred().resolve(html,js).promise()}.bind(this)).then(function(html,js){return this.requiredDates.length>0?UserDate.get(this.requiredDates).then(function(dates){return html=this.treatDatesInContent(html,dates),js=this.treatDatesInContent(js,dates),$.Deferred().resolve(html,js).promise()}.bind(this)):$.Deferred().resolve(html,js).promise()}.bind(this)).then((function(html,js){return pendingPromise.resolve(),$.Deferred().resolve(html,js).promise()}))};var runTemplateJS=function(source){if(""!==source.trim()){var newscript=$("<script>").attr("type","text/javascript").html(source);$("head").append(newscript)}},domReplace=function(element,newHTML,newJS,replaceChildNodes){var replaceNode=$(element);if(replaceNode.length){var newNodes=$(newHTML);return replaceChildNodes?(new Y.NodeList(replaceNode.children().get()).destroy(!0),replaceNode.empty(),replaceNode.append(newNodes)):(new Y.NodeList(replaceNode.get()).destroy(!0),replaceNode.replaceWith(newNodes)),runTemplateJS(newJS),filterEvents.notifyFilterContentUpdated(newNodes),newNodes.get()}return[]};Renderer.prototype.scanForPartials=function(templateSource){var tokens=mustache.parse(templateSource),partials=[],findPartial=function(tokens,partials){var i,token;for(i=0;i<tokens.length;i++)">"!=(token=tokens[i])[0]&&"<"!=token[0]||partials.push(token[1]),token.length>4&&findPartial(token[4],partials)};return findPartial(tokens,partials),partials},Renderer.prototype.cachePartials=function(templateName,parentage){var searchKey=this.currentThemeName+"/"+templateName;return searchKey in cachePartialPromises||(parentage=parentage||[searchKey],cachePartialPromises[searchKey]=$.Deferred(),this.getTemplate(templateName).then(function(templateSource){var fetchThemAll=this.scanForPartials(templateSource).filter(function(partialName){return!(parentage.indexOf(this.currentThemeName+"/"+partialName)>=0)&&partialName!=templateName}.bind(this)).map(function(partialName){return parentage.push(this.currentThemeName+"/"+partialName),this.cachePartials(partialName,parentage)}.bind(this));return $.when.apply($,fetchThemAll).then((function(){return cachePartialPromises[searchKey].resolve(templateSource)}))}.bind(this)).catch(cachePartialPromises[searchKey].reject)),cachePartialPromises[searchKey]},Renderer.prototype.render=function(templateName,context,themeName){void 0===themeName&&(themeName=config.theme),this.currentThemeName=themeName;var modulename=config.iconsystemmodule,ready=$.Deferred();return require([modulename],(function(System){var system=new System;system instanceof IconSystem?(iconSystem=system,system.init().then(ready.resolve).catch(notification.exception)):ready.reject("Invalid icon system specified"+config.iconsystem)})),ready.then(function(){return this.cachePartials(templateName)}.bind(this)).then(function(templateSource){return this.doRender(templateSource,context,themeName)}.bind(this))};return{render:function(templateName,context,themeName){return(new Renderer).render(templateName,context,themeName)},prefetchTemplates:function(templateNames,themeName){var renderer=new Renderer;return void 0===themeName&&(themeName=config.theme),renderer.prefetchTemplates(templateNames,themeName)},renderForPromise:function(templateName,context,themeName){return(new Renderer).render(templateName,context,themeName).then((function(html,js){return{html:html,js:js}}))},renderPix:function(key,component,title){return(new Renderer).renderIcon(key,getNormalisedComponent(component),title)},runTemplateJS:runTemplateJS,replaceNodeContents:function(element,newHTML,newJS){return domReplace(element,newHTML,newJS,!0)},replaceNode:function(element,newHTML,newJS){return domReplace(element,newHTML,newJS,!1)},prependNodeContents:function(element,html,js){return function(element,html,js){var node=$(element);if(node.length){var newContent=$(html);return node.prepend(newContent),runTemplateJS(js),filterEvents.notifyFilterContentUpdated(node),newContent.get()}return[]}(element,html,js)},appendNodeContents:function(element,html,js){return function(element,html,js){var node=$(element);if(node.length){var newContent=$(html);return node.append(newContent),runTemplateJS(js),filterEvents.notifyFilterContentUpdated(node),newContent.get()}return[]}(element,html,js)}}}));
+define("core/templates",["core/mustache","jquery","core/ajax","core/str","core/notification","core/url","core/config","core/localstorage","core/icon_system","core_filters/events","core/yui","core/log","core/truncate","core/user_date","core/pending"],(function(mustache,$,ajax,str,notification,coreurl,config,storage,IconSystem,filterEvents,Y,Log,Truncate,UserDate,Pending){var uniqInstances=0,templateCache={},templatePromises={},cachePartialPromises={},iconSystem={},loadTemplateBuffer=[],isLoadingTemplates=!1,disallowedNestedHelpers=["js"],getNormalisedComponent=function(component){return component&&"moodle"!==component&&"core"!==component?component:"core"},getTemplatePromiseFromCache=function(searchKey){if(searchKey in templatePromises)return templatePromises[searchKey];if(searchKey in templateCache)return templatePromises[searchKey]=$.Deferred().resolve(templateCache[searchKey]).promise(),templatePromises[searchKey];if(M.cfg.templaterev<=0)return null;var cached=storage.get("core_template/"+M.cfg.templaterev+":"+searchKey);return cached?(templateCache[searchKey]=cached,templatePromises[searchKey]=$.Deferred().resolve(cached).promise(),templatePromises[searchKey]):null},processLoadTemplateBuffer=function(){if(loadTemplateBuffer.length&&!isLoadingTemplates){isLoadingTemplates=!0;var templatesToLoad=loadTemplateBuffer.slice(),serverRequestsDeferred=$.Deferred(),requests=[],templatePromises=templatesToLoad.map((function(templateData){var component=getNormalisedComponent(templateData.component),name=templateData.name,searchKey=templateData.searchKey,theme=templateData.theme,templateDeferred=templateData.deferred,promise=null,cachedPromise=getTemplatePromiseFromCache(searchKey);if(cachedPromise)promise=cachedPromise;else{requests.push({methodname:"core_output_load_template_with_dependencies",args:{component:component,template:name,themename:theme,lang:config.language}});var index=requests.length-1;promise=serverRequestsDeferred.promise().then((function(promises){return templatePromises[searchKey]=promises[index].then((function(response){var templateSource=null;return response.templates.forEach((function(data){data.component=getNormalisedComponent(data.component);var tempSearchKey=[theme,data.component,data.name].join("/");templateCache[tempSearchKey]=data.value,M.cfg.templaterev>0&&storage.set("core_template/"+M.cfg.templaterev+":"+tempSearchKey,data.value),data.component==component&&data.name==name&&(templateSource=data.value)})),response.strings.length&&str.cache_strings(response.strings.map((function(data){return{component:getNormalisedComponent(data.component),key:data.name,value:data.value}}))),templateSource})),templatePromises[searchKey]}))}return promise.then((function(source){return templateDeferred.resolve(source)})).catch((function(error){throw templateDeferred.reject(error),error}))}));requests.length?serverRequestsDeferred.resolve(ajax.call(requests,!0,!1,!1,0,M.cfg.templaterev)):serverRequestsDeferred.resolve(),$.when.apply(null,templatePromises).then((function(){loadTemplateBuffer.splice(0,templatesToLoad.length),isLoadingTemplates=!1,processLoadTemplateBuffer()})).catch((function(){loadTemplateBuffer.splice(0,templatesToLoad.length),isLoadingTemplates=!1,processLoadTemplateBuffer()}))}},Renderer=function(){this.requiredStrings=[],this.requiredJS=[],this.requiredDates=[],this.currentThemeName=""};Renderer.prototype.requiredStrings=null,Renderer.prototype.requiredDates=[],Renderer.prototype.requiredJS=null,Renderer.prototype.currentThemeName="",Renderer.prototype.getTemplate=function(templateName){var currentTheme=this.currentThemeName,searchKey=currentTheme+"/"+templateName,cachedPromise=getTemplatePromiseFromCache(searchKey);if(cachedPromise)return cachedPromise;var existingBufferRecords=loadTemplateBuffer.filter((function(record){return record.searchKey==searchKey}));if(existingBufferRecords.length)return existingBufferRecords[0].deferred.promise();var parts=templateName.split("/"),component=getNormalisedComponent(parts.shift()),name=parts.join("/"),deferred=$.Deferred();return loadTemplateBuffer.push({component:component,name:name,theme:currentTheme,searchKey:searchKey,deferred:deferred}),processLoadTemplateBuffer(),deferred.promise()},Renderer.prototype.prefetchTemplates=function(templateNames,currentTheme){templateNames.forEach((function(templateName){var searchKey=currentTheme+"/"+templateName;if(!getTemplatePromiseFromCache(searchKey)&&!loadTemplateBuffer.filter((function(record){return record.searchKey==searchKey})).length){var parts=templateName.split("/"),component=getNormalisedComponent(parts.shift()),name=parts.join("/");loadTemplateBuffer.push({component:component,name:name,theme:currentTheme,searchKey:searchKey,deferred:$.Deferred()})}})),processLoadTemplateBuffer()},Renderer.prototype.partialHelper=function(name){var searchKey=this.currentThemeName+"/"+name;return searchKey in templateCache||notification.exception(new Error("Failed to pre-fetch the template: "+name)),templateCache[searchKey]},Renderer.prototype.renderIcon=function(key,component,title){var modulename=config.iconsystemmodule;component=getNormalisedComponent(component);var ready=$.Deferred();return require([modulename],(function(System){var system=new System;system instanceof IconSystem?(iconSystem=system,system.init().then(ready.resolve).catch(notification.exception)):ready.reject("Invalid icon system specified"+config.iconsystemmodule)})),ready.then(function(iconSystem){return this.getTemplate(iconSystem.getTemplateName())}.bind(this)).then((function(template){return iconSystem.renderIcon(key,component,title,template)}))},Renderer.prototype.pixHelper=function(context,sectionText,helper){var parts=sectionText.split(","),key="",component="",text="";parts.length>0&&(key=helper(parts.shift().trim(),context)),parts.length>0&&(component=helper(parts.shift().trim(),context)),parts.length>0&&(text=helper(parts.join(",").trim(),context));var templateName=iconSystem.getTemplateName(),searchKey=this.currentThemeName+"/"+templateName,template=templateCache[searchKey];return component=getNormalisedComponent(component),key=key.replace(/&#x2F;/gi,"/"),iconSystem.renderIcon(key,component,text,template)},Renderer.prototype.jsHelper=function(context,sectionText,helper){return this.requiredJS.push(helper(sectionText,context)),""},Renderer.prototype.stringHelper=function(context,sectionText,helper){var parts=sectionText.split(","),key="",component="",param="";if(parts.length>0&&(key=parts.shift().trim()),parts.length>0&&(component=parts.shift().trim()),parts.length>0&&(param=parts.join(",").trim()),component=getNormalisedComponent(component),""!==param&&(param=helper(param,context)),param.match(/^{\s*"/gm))try{const parsedParam=JSON.parse(param);parsedParam&&"object"==typeof parsedParam&&(param=parsedParam)}catch(err){window.console.warn(err.message)}var index=this.requiredStrings.length;return this.requiredStrings.push({key:key,component:component,param:param}),"[[_s"+index+"]]"},Renderer.prototype.cleanStringHelper=function(context,sectionText,helper){return this.stringHelper(context,sectionText,helper).replace("s","c")},Renderer.prototype.quoteHelper=function(context,sectionText,helper){var content=helper(sectionText.trim(),context);return content=(content=JSON.stringify(content)).replace(/([{}]{2,3})/g,"{{=<% %>=}}$1<%={{ }}=%>")},Renderer.prototype.shortenTextHelper=function(context,sectionText,helper){var parts=sectionText.match(/(.*?),(.*)/),length=parts[1].trim(),content=helper(parts[2].trim(),context);return Truncate.truncate(content,{length:length,words:!0,ellipsis:"..."})},Renderer.prototype.userDateHelper=function(context,sectionText,helper){var parts=sectionText.match(/(.*?),(.*)/),timestamp=helper(parts[1].trim(),context),format=helper(parts[2].trim(),context),index=this.requiredDates.length;return this.requiredDates.push({timestamp:timestamp,format:format}),"[[_t_"+index+"]]"},Renderer.prototype.addHelperFunction=function(helperFunction,context){return function(){return function(sectionText,helper){var originalHelpers=disallowedNestedHelpers.reduce((function(carry,name){return context.hasOwnProperty(name)&&(carry[name]=context[name]),carry}),{});disallowedNestedHelpers.forEach((function(helperName){context[helperName]=function(){return""}}));var result=helperFunction.apply(this,[context,sectionText,helper]);for(var name in originalHelpers)context[name]=originalHelpers[name];return result}.bind(this)}.bind(this)},Renderer.prototype.addHelpers=function(context,themeName){this.currentThemeName=themeName,this.requiredStrings=[],this.requiredJS=[],context.uniqid=uniqInstances++,context.str=this.addHelperFunction(this.stringHelper,context),context.cleanstr=this.addHelperFunction(this.cleanStringHelper,context),context.pix=this.addHelperFunction(this.pixHelper,context),context.js=this.addHelperFunction(this.jsHelper,context),context.quote=this.addHelperFunction(this.quoteHelper,context),context.shortentext=this.addHelperFunction(this.shortenTextHelper,context),context.userdate=this.addHelperFunction(this.userDateHelper,context),context.globals={config:config},context.currentTheme=themeName},Renderer.prototype.getJS=function(){var js="";return this.requiredJS.length>0&&(js=this.requiredJS.join(";\n")),js},Renderer.prototype.treatStringsInContent=function(content,strings){var treated,index,strIndex,walker,char,strFinal,isClean,pattern=/\[\[_(s|c)\d+\]\]/;do{for(treated="",index=content.search(pattern);index>-1;){treated+=content.substring(0,index),isClean="c"==(content=content.substr(index))[3],strIndex="",walker=4,char=content.substr(walker,1);do{strIndex+=char,walker++,char=content.substr(walker,1)}while("]"!=char);void 0===(strFinal=strings[parseInt(strIndex,10)])&&(Log.debug("Could not find string for pattern [[_"+(isClean?"c":"s")+strIndex+"]]."),strFinal=""),isClean&&(strFinal=mustache.escape(strFinal)),treated+=strFinal,index=(content=content.substr(6+strIndex.length)).search(pattern)}index=(content=treated+content).search(pattern)}while(index>-1);return content},Renderer.prototype.treatDatesInContent=function(content,dates){return dates.forEach((function(date,index){var re=new RegExp("\\[\\[_t_"+index+"\\]\\]","g");content=content.replace(re,date)})),content},Renderer.prototype.doRender=function(templateSource,context,themeName){this.currentThemeName=themeName;var iconTemplate=iconSystem.getTemplateName(),pendingPromise=new Pending("core/templates:doRender");return this.getTemplate(iconTemplate).then(function(){this.addHelpers(context,themeName);var result=mustache.render(templateSource,context,this.partialHelper.bind(this));return $.Deferred().resolve(result.trim(),this.getJS()).promise()}.bind(this)).then(function(html,js){return this.requiredStrings.length>0?str.get_strings(this.requiredStrings).then(function(strings){return this.requiredDates=this.requiredDates.map(function(date){return{timestamp:this.treatStringsInContent(date.timestamp,strings),format:this.treatStringsInContent(date.format,strings)}}.bind(this)),html=this.treatStringsInContent(html,strings),js=this.treatStringsInContent(js,strings),$.Deferred().resolve(html,js).promise()}.bind(this)):$.Deferred().resolve(html,js).promise()}.bind(this)).then(function(html,js){return this.requiredDates.length>0?UserDate.get(this.requiredDates).then(function(dates){return html=this.treatDatesInContent(html,dates),js=this.treatDatesInContent(js,dates),$.Deferred().resolve(html,js).promise()}.bind(this)):$.Deferred().resolve(html,js).promise()}.bind(this)).then((function(html,js){return pendingPromise.resolve(),$.Deferred().resolve(html,js).promise()}))};var runTemplateJS=function(source){if(""!==source.trim()){var newscript=$("<script>").attr("type","text/javascript").html(source);$("head").append(newscript)}},domReplace=function(element,newHTML,newJS,replaceChildNodes){var replaceNode=$(element);if(replaceNode.length){var newNodes=$(newHTML);return replaceChildNodes?(new Y.NodeList(replaceNode.children().get()).destroy(!0),replaceNode.empty(),replaceNode.append(newNodes)):(new Y.NodeList(replaceNode.get()).destroy(!0),replaceNode.replaceWith(newNodes)),runTemplateJS(newJS),filterEvents.notifyFilterContentUpdated(newNodes),newNodes.get()}return[]};Renderer.prototype.scanForPartials=function(templateSource){var tokens=mustache.parse(templateSource),partials=[],findPartial=function(tokens,partials){var i,token;for(i=0;i<tokens.length;i++)">"!=(token=tokens[i])[0]&&"<"!=token[0]||partials.push(token[1]),token.length>4&&findPartial(token[4],partials)};return findPartial(tokens,partials),partials},Renderer.prototype.cachePartials=function(templateName,parentage){var searchKey=this.currentThemeName+"/"+templateName;return searchKey in cachePartialPromises||(parentage=parentage||[searchKey],cachePartialPromises[searchKey]=$.Deferred(),this.getTemplate(templateName).then(function(templateSource){var fetchThemAll=this.scanForPartials(templateSource).filter(function(partialName){return!(parentage.indexOf(this.currentThemeName+"/"+partialName)>=0)&&partialName!=templateName}.bind(this)).map(function(partialName){return parentage.push(this.currentThemeName+"/"+partialName),this.cachePartials(partialName,parentage)}.bind(this));return $.when.apply($,fetchThemAll).then((function(){return cachePartialPromises[searchKey].resolve(templateSource)}))}.bind(this)).catch(cachePartialPromises[searchKey].reject)),cachePartialPromises[searchKey]},Renderer.prototype.render=function(templateName,context,themeName){void 0===themeName&&(themeName=config.theme),this.currentThemeName=themeName;var modulename=config.iconsystemmodule,ready=$.Deferred();return require([modulename],(function(System){var system=new System;system instanceof IconSystem?(iconSystem=system,system.init().then(ready.resolve).catch(notification.exception)):ready.reject("Invalid icon system specified"+config.iconsystem)})),ready.then(function(){return this.cachePartials(templateName)}.bind(this)).then(function(templateSource){return this.doRender(templateSource,context,themeName)}.bind(this))};return{render:function(templateName,context,themeName){return(new Renderer).render(templateName,context,themeName)},prefetchTemplates:function(templateNames,themeName){var renderer=new Renderer;return void 0===themeName&&(themeName=config.theme),renderer.prefetchTemplates(templateNames,themeName)},renderForPromise:function(templateName,context,themeName){return(new Renderer).render(templateName,context,themeName).then((function(html,js){return{html:html,js:js}}))},renderPix:function(key,component,title){return(new Renderer).renderIcon(key,getNormalisedComponent(component),title)},runTemplateJS:runTemplateJS,replaceNodeContents:function(element,newHTML,newJS){return domReplace(element,newHTML,newJS,!0)},replaceNode:function(element,newHTML,newJS){return domReplace(element,newHTML,newJS,!1)},prependNodeContents:function(element,html,js){return function(element,html,js){var node=$(element);if(node.length){var newContent=$(html);return node.prepend(newContent),runTemplateJS(js),filterEvents.notifyFilterContentUpdated(node),newContent.get()}return[]}(element,html,js)},appendNodeContents:function(element,html,js){return function(element,html,js){var node=$(element);if(node.length){var newContent=$(html);return node.append(newContent),runTemplateJS(js),filterEvents.notifyFilterContentUpdated(node),newContent.get()}return[]}(element,html,js)}}}));
 
 //# sourceMappingURL=templates.min.js.map
\ No newline at end of file
diff --git a/lib/amd/build/templates.min.js.map b/lib/amd/build/templates.min.js.map
index a14f532ea41b8..6c3444962b661 100644
--- a/lib/amd/build/templates.min.js.map
+++ b/lib/amd/build/templates.min.js.map
@@ -1 +1 @@
-{"version":3,"file":"templates.min.js","sources":["../src/templates.js"],"sourcesContent":["// 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 * Template renderer for Moodle. Load and render Moodle templates with Mustache.\n *\n * @module     core/templates\n * @copyright  2015 Damyon Wiese <damyon@moodle.com>\n * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later\n * @since      2.9\n */\ndefine([\n    'core/mustache',\n    'jquery',\n    'core/ajax',\n    'core/str',\n    'core/notification',\n    'core/url',\n    'core/config',\n    'core/localstorage',\n    'core/icon_system',\n    'core_filters/events',\n    'core/yui',\n    'core/log',\n    'core/truncate',\n    'core/user_date',\n    'core/pending',\n],\nfunction(\n    mustache,\n    $,\n    ajax,\n    str,\n    notification,\n    coreurl,\n    config,\n    storage,\n    IconSystem,\n    filterEvents,\n    Y,\n    Log,\n    Truncate,\n    UserDate,\n    Pending\n) {\n\n    // Module variables.\n    /** @var {Number} uniqInstances Count of times this constructor has been called. */\n    var uniqInstances = 0;\n\n    /** @var {String[]} templateCache - Cache of already loaded template strings */\n    var templateCache = {};\n\n    /** @var {Promise[]} templatePromises - Cache of already loaded template promises */\n    var templatePromises = {};\n\n    /** @var {Promise[]} cachePartialPromises - Cache of already loaded template partial promises */\n    var cachePartialPromises = {};\n\n    /** @var {Object} iconSystem - Object extending core/iconsystem */\n    var iconSystem = {};\n\n    /** @var {Object[]} loadTemplateBuffer - List of templates to be loaded */\n    var loadTemplateBuffer = [];\n\n    /** @var {Bool} isLoadingTemplates - Whether templates are currently being loaded */\n    var isLoadingTemplates = false;\n\n    /** @var {Array} disallowedNestedHelpers - List of helpers that can't be called within other helpers */\n    var disallowedNestedHelpers = ['js'];\n\n    /**\n     * Normalise the provided component such that '', 'moodle', and 'core' are treated consistently.\n     *\n     * @param   {String} component\n     * @returns {String}\n     */\n    var getNormalisedComponent = function(component) {\n        if (component) {\n            if (component !== 'moodle' && component !== 'core') {\n                return component;\n            }\n        }\n\n        return 'core';\n    };\n\n    /**\n     * Search the various caches for a template promise for the given search key.\n     * The search key should be in the format <theme>/<component>/<template> e.g. boost/core/modal.\n     *\n     * If the template is found in any of the caches it will populate the other caches with\n     * the same data as well.\n     *\n     * @param {String} searchKey The template search key in the format <theme>/<component>/<template> e.g. boost/core/modal\n     * @return {Object} jQuery promise resolved with the template source\n     */\n    var getTemplatePromiseFromCache = function(searchKey) {\n        // First try the cache of promises.\n        if (searchKey in templatePromises) {\n            return templatePromises[searchKey];\n        }\n\n        // Check the module cache.\n        if (searchKey in templateCache) {\n            // Add this to the promises cache for future.\n            templatePromises[searchKey] = $.Deferred().resolve(templateCache[searchKey]).promise();\n            return templatePromises[searchKey];\n        }\n\n        if (M.cfg.templaterev <= 0) {\n            // Template caching is disabled. Do not store in persistent storage.\n            return null;\n        }\n\n        // Now try local storage.\n        var cached = storage.get('core_template/' + M.cfg.templaterev + ':' + searchKey);\n        if (cached) {\n            // Add this to the module cache for future.\n            templateCache[searchKey] = cached;\n            // Add this to the promises cache for future.\n            templatePromises[searchKey] = $.Deferred().resolve(cached).promise();\n            return templatePromises[searchKey];\n        }\n\n        return null;\n    };\n\n    /**\n     * Take all of the templates waiting in the buffer and load them from the server\n     * or from the cache.\n     *\n     * All of the templates that need to be loaded from the server will be batched up\n     * and sent in a single network request.\n     */\n    var processLoadTemplateBuffer = function() {\n        if (!loadTemplateBuffer.length) {\n            return;\n        }\n\n        if (isLoadingTemplates) {\n            return;\n        }\n\n        isLoadingTemplates = true;\n        // Grab any templates waiting in the buffer.\n        var templatesToLoad = loadTemplateBuffer.slice();\n        // This will be resolved with the list of promises for the server request.\n        var serverRequestsDeferred = $.Deferred();\n        var requests = [];\n        // Get a list of promises for each of the templates we need to load.\n        var templatePromises = templatesToLoad.map(function(templateData) {\n            var component = getNormalisedComponent(templateData.component);\n            var name = templateData.name;\n            var searchKey = templateData.searchKey;\n            var theme = templateData.theme;\n            var templateDeferred = templateData.deferred;\n            var promise = null;\n\n            // Double check to see if this template happened to have landed in the\n            // cache as a dependency of an earlier template.\n            var cachedPromise = getTemplatePromiseFromCache(searchKey);\n            if (cachedPromise) {\n                // We've seen this template so immediately resolve the existing promise.\n                promise = cachedPromise;\n            } else {\n                // We haven't seen this template yet so we need to request it from\n                // the server.\n                requests.push({\n                    methodname: 'core_output_load_template_with_dependencies',\n                    args: {\n                        component: component,\n                        template: name,\n                        themename: theme,\n                        lang: $('html').attr('lang').replace(/-/g, '_')\n                    }\n                });\n                // Remember the index in the requests list for this template so that\n                // we can get the appropriate promise back.\n                var index = requests.length - 1;\n\n                // The server deferred will be resolved with a list of all of the promises\n                // that were sent in the order that they were added to the requests array.\n                promise = serverRequestsDeferred.promise()\n                    .then(function(promises) {\n                        // The promise for this template will be the one that matches the index\n                        // for it's entry in the requests array.\n                        //\n                        // Make sure the promise is added to the promises cache for this template\n                        // search key so that we don't request it again.\n                        templatePromises[searchKey] = promises[index].then(function(response) {\n                            var templateSource = null;\n\n                            // Process all of the template dependencies for this template and add\n                            // them to the caches so that we don't request them again later.\n                            response.templates.forEach(function(data) {\n                                data.component = getNormalisedComponent(data.component);\n                                // Generate the search key for this template in the response so that we\n                                // can add it to the caches.\n                                var tempSearchKey = [theme, data.component, data.name].join('/');\n                                // Cache all of the dependent templates because we'll need them to render\n                                // the requested template.\n                                templateCache[tempSearchKey] = data.value;\n\n                                if (M.cfg.templaterev > 0) {\n                                    // The template cache is enabled - set the value there.\n                                    storage.set('core_template/' + M.cfg.templaterev + ':' + tempSearchKey, data.value);\n                                }\n\n                                if (data.component == component && data.name == name) {\n                                    // This is the original template that was requested so remember it to return.\n                                    templateSource = data.value;\n                                }\n                            });\n\n                            if (response.strings.length) {\n                                // If we have strings that the template needs then warm the string cache\n                                // with them now so that we don't need to re-fetch them.\n                                str.cache_strings(response.strings.map(function(data) {\n                                    return {\n                                        component: getNormalisedComponent(data.component),\n                                        key: data.name,\n                                        value: data.value\n                                    };\n                                }));\n                            }\n\n                            // Return the original template source that the user requested.\n                            return templateSource;\n                        });\n\n                        return templatePromises[searchKey];\n                    });\n            }\n\n            return promise\n                .then(function(source) {\n                    // When we've successfully loaded the template then resolve the deferred\n                    // in the buffer so that all of the calling code can proceed.\n                    return templateDeferred.resolve(source);\n                })\n                .catch(function(error) {\n                    // If there was an error loading the template then reject the deferred\n                    // in the buffer so that all of the calling code can proceed.\n                    templateDeferred.reject(error);\n                    // Rethrow for anyone else listening.\n                    throw error;\n                });\n        });\n\n        if (requests.length) {\n            // We have requests to send so resolve the deferred with the promises.\n            serverRequestsDeferred.resolve(ajax.call(requests, true, false, false, 0, M.cfg.templaterev));\n        } else {\n            // Nothing to load so we can resolve our deferred.\n            serverRequestsDeferred.resolve();\n        }\n\n        // Once we've finished loading all of the templates then recurse to process\n        // any templates that may have been added to the buffer in the time that we\n        // were fetching.\n        $.when.apply(null, templatePromises)\n            .then(function() {\n                // Remove the templates we've loaded from the buffer.\n                loadTemplateBuffer.splice(0, templatesToLoad.length);\n                isLoadingTemplates = false;\n                processLoadTemplateBuffer();\n                return;\n            })\n            .catch(function() {\n                // Remove the templates we've loaded from the buffer.\n                loadTemplateBuffer.splice(0, templatesToLoad.length);\n                isLoadingTemplates = false;\n                processLoadTemplateBuffer();\n            });\n    };\n\n    /**\n     * Constructor\n     *\n     * Each call to templates.render gets it's own instance of this class.\n     */\n    var Renderer = function() {\n        this.requiredStrings = [];\n        this.requiredJS = [];\n        this.requiredDates = [];\n        this.currentThemeName = '';\n    };\n    // Class variables and functions.\n\n    /** @var {string[]} requiredStrings - Collection of strings found during the rendering of one template */\n    Renderer.prototype.requiredStrings = null;\n\n    /** @var {object[]} requiredDates - Collection of dates found during the rendering of one template */\n    Renderer.prototype.requiredDates = [];\n\n    /** @var {string[]} requiredJS - Collection of js blocks found during the rendering of one template */\n    Renderer.prototype.requiredJS = null;\n\n    /** @var {String} themeName for the current render */\n    Renderer.prototype.currentThemeName = '';\n\n    /**\n     * Load a template.\n     *\n     * @method getTemplate\n     * @private\n     * @param {string} templateName - should consist of the component and the name of the template like this:\n     *                              core/menu (lib/templates/menu.mustache) or\n     *                              tool_bananas/yellow (admin/tool/bananas/templates/yellow.mustache)\n     * @return {Promise} JQuery promise object resolved when the template has been fetched.\n     */\n    Renderer.prototype.getTemplate = function(templateName) {\n        var currentTheme = this.currentThemeName;\n        var searchKey = currentTheme + '/' + templateName;\n\n        // If we haven't already seen this template then buffer it.\n        var cachedPromise = getTemplatePromiseFromCache(searchKey);\n        if (cachedPromise) {\n            return cachedPromise;\n        }\n\n        // Check the buffer to see if this template has already been added.\n        var existingBufferRecords = loadTemplateBuffer.filter(function(record) {\n            return record.searchKey == searchKey;\n        });\n        if (existingBufferRecords.length) {\n            // This template is already in the buffer so just return the existing\n            // promise. No need to add it to the buffer again.\n            return existingBufferRecords[0].deferred.promise();\n        }\n\n        // This is the first time this has been requested so let's add it to the buffer\n        // to be loaded.\n        var parts = templateName.split('/');\n        var component = getNormalisedComponent(parts.shift());\n        var name = parts.join('/');\n        var deferred = $.Deferred();\n\n        // Add this template to the buffer to be loaded.\n        loadTemplateBuffer.push({\n            component: component,\n            name: name,\n            theme: currentTheme,\n            searchKey: searchKey,\n            deferred: deferred\n        });\n\n        // We know there is at least one thing in the buffer so kick off a processing run.\n        processLoadTemplateBuffer();\n        return deferred.promise();\n    };\n\n    /**\n     * Prefetch a set of templates without rendering them.\n     *\n     * @param {Array} templateNames The list of templates to fetch\n     * @param {String} currentTheme\n     */\n    Renderer.prototype.prefetchTemplates = function(templateNames, currentTheme) {\n        templateNames.forEach(function(templateName) {\n            var searchKey = currentTheme + '/' + templateName;\n\n            // If we haven't already seen this template then buffer it.\n            if (getTemplatePromiseFromCache(searchKey)) {\n                return;\n            }\n\n            // Check the buffer to see if this template has already been added.\n            var existingBufferRecords = loadTemplateBuffer.filter(function(record) {\n                return record.searchKey == searchKey;\n            });\n\n            if (existingBufferRecords.length) {\n                // This template is already in the buffer so just return the existing promise.\n                // No need to add it to the buffer again.\n                return;\n            }\n\n            // This is the first time this has been requested so let's add it to the buffer to be loaded.\n            var parts = templateName.split('/');\n            var component = getNormalisedComponent(parts.shift());\n            var name = parts.join('/');\n\n            // Add this template to the buffer to be loaded.\n            loadTemplateBuffer.push({\n                component: component,\n                name: name,\n                theme: currentTheme,\n                searchKey: searchKey,\n                deferred: $.Deferred(),\n            });\n        });\n\n        processLoadTemplateBuffer();\n    };\n\n    /**\n     * Load a partial from the cache or ajax.\n     *\n     * @method partialHelper\n     * @private\n     * @param {string} name The partial name to load.\n     * @return {string}\n     */\n    Renderer.prototype.partialHelper = function(name) {\n\n        var searchKey = this.currentThemeName + '/' + name;\n\n        if (!(searchKey in templateCache)) {\n            notification.exception(new Error('Failed to pre-fetch the template: ' + name));\n        }\n\n        return templateCache[searchKey];\n    };\n\n    /**\n     * Render a single image icon.\n     *\n     * @method renderIcon\n     * @private\n     * @param {string} key The icon key.\n     * @param {string} component The component name.\n     * @param {string} title The icon title\n     * @return {Promise}\n     */\n    Renderer.prototype.renderIcon = function(key, component, title) {\n        // Preload the module to do the icon rendering based on the theme iconsystem.\n        var modulename = config.iconsystemmodule;\n        component = getNormalisedComponent(component);\n\n        // RequireJS does not return a promise.\n        var ready = $.Deferred();\n        require([modulename], function(System) {\n            var system = new System();\n            if (!(system instanceof IconSystem)) {\n                ready.reject('Invalid icon system specified' + config.iconsystemmodule);\n            } else {\n                iconSystem = system;\n                system.init().then(ready.resolve).catch(notification.exception);\n            }\n        });\n\n        return ready.then(function(iconSystem) {\n            return this.getTemplate(iconSystem.getTemplateName());\n        }.bind(this)).then(function(template) {\n            return iconSystem.renderIcon(\n                key,\n                component,\n                title,\n                template\n            );\n        });\n    };\n\n    /**\n     * Render image icons.\n     *\n     * @method pixHelper\n     * @private\n     * @param {object} context The mustache context\n     * @param {string} sectionText The text to parse arguments from.\n     * @param {function} helper Used to render the alt attribute of the text.\n     * @return {string}\n     */\n    Renderer.prototype.pixHelper = function(context, sectionText, helper) {\n        var parts = sectionText.split(',');\n        var key = '';\n        var component = '';\n        var text = '';\n\n        if (parts.length > 0) {\n            key = helper(parts.shift().trim(), context);\n        }\n        if (parts.length > 0) {\n            component = helper(parts.shift().trim(), context);\n        }\n        if (parts.length > 0) {\n            text = helper(parts.join(',').trim(), context);\n        }\n\n        var templateName = iconSystem.getTemplateName();\n        var searchKey = this.currentThemeName + '/' + templateName;\n        var template = templateCache[searchKey];\n\n        component = getNormalisedComponent(component);\n\n        // The key might have been escaped by the JS Mustache engine which\n        // converts forward slashes to HTML entities. Let us undo that here.\n        key = key.replace(/&#x2F;/gi, '/');\n\n        return iconSystem.renderIcon(\n            key,\n            component,\n            text,\n            template\n        );\n    };\n\n    /**\n     * Render blocks of javascript and save them in an array.\n     *\n     * @method jsHelper\n     * @private\n     * @param {object} context The current mustache context.\n     * @param {string} sectionText The text to save as a js block.\n     * @param {function} helper Used to render the block.\n     * @return {string}\n     */\n    Renderer.prototype.jsHelper = function(context, sectionText, helper) {\n        this.requiredJS.push(helper(sectionText, context));\n        return '';\n    };\n\n    /**\n     * String helper used to render {{#str}}abd component { a : 'fish'}{{/str}}\n     * into a get_string call.\n     *\n     * @method stringHelper\n     * @private\n     * @param {object} context The current mustache context.\n     * @param {string} sectionText The text to parse the arguments from.\n     * @param {function} helper Used to render subsections of the text.\n     * @return {string}\n     */\n    Renderer.prototype.stringHelper = function(context, sectionText, helper) {\n        var parts = sectionText.split(',');\n        var key = '';\n        var component = '';\n        var param = '';\n        if (parts.length > 0) {\n            key = parts.shift().trim();\n        }\n        if (parts.length > 0) {\n            component = parts.shift().trim();\n        }\n        if (parts.length > 0) {\n            param = parts.join(',').trim();\n        }\n\n        component = getNormalisedComponent(component);\n\n        if (param !== '') {\n            // Allow variable expansion in the param part only.\n            param = helper(param, context);\n        }\n\n        // Allow json formatted $a arguments.\n        if (param.match(/^{\\s*\"/gm)) {\n            // If it can't be parsed then the string is not a JSON format.\n            try {\n                const parsedParam = JSON.parse(param);\n                // Handle non-exception-throwing cases, e.g. null, integer, boolean.\n                if (parsedParam && typeof parsedParam === \"object\") {\n                    param = parsedParam;\n                }\n            } catch (err) {\n                // This was probably not JSON.\n                // Keep the error message visible.\n                window.console.warn(err.message);\n            }\n        }\n\n        var index = this.requiredStrings.length;\n        this.requiredStrings.push({\n            key: key,\n            component: component,\n            param: param\n        });\n\n        // The placeholder must not use {{}} as those can be misinterpreted by the engine.\n        return '[[_s' + index + ']]';\n    };\n\n    /**\n     * String helper to render {{#cleanstr}}abd component { a : 'fish'}{{/cleanstr}}\n     * into a get_string following by an HTML escape.\n     *\n     * @method cleanStringHelper\n     * @private\n     * @param {object} context The current mustache context.\n     * @param {string} sectionText The text to parse the arguments from.\n     * @param {function} helper Used to render subsections of the text.\n     * @return {string}\n     */\n    Renderer.prototype.cleanStringHelper = function(context, sectionText, helper) {\n        var str = this.stringHelper(context, sectionText, helper);\n\n        // We're going to use [[_cx]] format for clean strings, where x is a number.\n        // Hence, replacing 's' with 'c' in the placeholder that stringHelper returns.\n        return str.replace('s', 'c');\n    };\n\n    /**\n     * Quote helper used to wrap content in quotes, and escape all special JSON characters present in the content.\n     *\n     * @method quoteHelper\n     * @private\n     * @param {object} context The current mustache context.\n     * @param {string} sectionText The text to parse the arguments from.\n     * @param {function} helper Used to render subsections of the text.\n     * @return {string}\n     */\n    Renderer.prototype.quoteHelper = function(context, sectionText, helper) {\n        var content = helper(sectionText.trim(), context);\n\n        // Escape the {{ and JSON encode.\n        // This involves wrapping {{, and }} in change delimeter tags.\n        content = JSON.stringify(content);\n        content = content.replace(/([{}]{2,3})/g, '{{=<% %>=}}$1<%={{ }}=%>');\n        return content;\n    };\n\n    /**\n     * Shorten text helper to truncate text and append a trailing ellipsis.\n     *\n     * @method shortenTextHelper\n     * @private\n     * @param {object} context The current mustache context.\n     * @param {string} sectionText The text to parse the arguments from.\n     * @param {function} helper Used to render subsections of the text.\n     * @return {string}\n     */\n    Renderer.prototype.shortenTextHelper = function(context, sectionText, helper) {\n        // Non-greedy split on comma to grab section text into the length and\n        // text parts.\n        var regex = /(.*?),(.*)/;\n        var parts = sectionText.match(regex);\n        // The length is the part matched in the first set of parethesis.\n        var length = parts[1].trim();\n        // The length is the part matched in the second set of parethesis.\n        var text = parts[2].trim();\n        var content = helper(text, context);\n        return Truncate.truncate(content, {\n            length: length,\n            words: true,\n            ellipsis: '...'\n        });\n    };\n\n    /**\n     * User date helper to render user dates from timestamps.\n     *\n     * @method userDateHelper\n     * @private\n     * @param {object} context The current mustache context.\n     * @param {string} sectionText The text to parse the arguments from.\n     * @param {function} helper Used to render subsections of the text.\n     * @return {string}\n     */\n    Renderer.prototype.userDateHelper = function(context, sectionText, helper) {\n        // Non-greedy split on comma to grab the timestamp and format.\n        var regex = /(.*?),(.*)/;\n        var parts = sectionText.match(regex);\n        var timestamp = helper(parts[1].trim(), context);\n        var format = helper(parts[2].trim(), context);\n        var index = this.requiredDates.length;\n\n        this.requiredDates.push({\n            timestamp: timestamp,\n            format: format\n        });\n\n        return '[[_t_' + index + ']]';\n    };\n\n    /**\n     * Return a helper function to be added to the context for rendering the a\n     * template.\n     *\n     * This will parse the provided text before giving it to the helper function\n     * in order to remove any disallowed nested helpers to prevent one helper\n     * from calling another.\n     *\n     * In particular to prevent the JS helper from being called from within another\n     * helper because it can lead to security issues when the JS portion is user\n     * provided.\n     *\n     * @param  {function} helperFunction The helper function to add\n     * @param  {object} context The template context for the helper function\n     * @return {Function} To be set in the context\n     */\n    Renderer.prototype.addHelperFunction = function(helperFunction, context) {\n        return function() {\n            return function(sectionText, helper) {\n                // Override the disallowed helpers in the template context with\n                // a function that returns an empty string for use when executing\n                // other helpers. This is to prevent these helpers from being\n                // executed as part of the rendering of another helper in order to\n                // prevent any potential security issues.\n                var originalHelpers = disallowedNestedHelpers.reduce(function(carry, name) {\n                    if (context.hasOwnProperty(name)) {\n                        carry[name] = context[name];\n                    }\n\n                    return carry;\n                }, {});\n\n                disallowedNestedHelpers.forEach(function(helperName) {\n                    context[helperName] = function() {\n                        return '';\n                    };\n                });\n\n                // Execute the helper with the modified context that doesn't include\n                // the disallowed nested helpers. This prevents the disallowed\n                // helpers from being called from within other helpers.\n                var result = helperFunction.apply(this, [context, sectionText, helper]);\n\n                // Restore the original helper implementation in the context so that\n                // any further rendering has access to them again.\n                for (var name in originalHelpers) {\n                    context[name] = originalHelpers[name];\n                }\n\n                return result;\n            }.bind(this);\n        }.bind(this);\n    };\n\n    /**\n     * Add some common helper functions to all context objects passed to templates.\n     * These helpers match exactly the helpers available in php.\n     *\n     * @method addHelpers\n     * @private\n     * @param {Object} context Simple types used as the context for the template.\n     * @param {String} themeName We set this multiple times, because there are async calls.\n     */\n    Renderer.prototype.addHelpers = function(context, themeName) {\n        this.currentThemeName = themeName;\n        this.requiredStrings = [];\n        this.requiredJS = [];\n        context.uniqid = (uniqInstances++);\n        context.str = this.addHelperFunction(this.stringHelper, context);\n        context.cleanstr = this.addHelperFunction(this.cleanStringHelper, context);\n        context.pix = this.addHelperFunction(this.pixHelper, context);\n        context.js = this.addHelperFunction(this.jsHelper, context);\n        context.quote = this.addHelperFunction(this.quoteHelper, context);\n        context.shortentext = this.addHelperFunction(this.shortenTextHelper, context);\n        context.userdate = this.addHelperFunction(this.userDateHelper, context);\n        context.globals = {config: config};\n        context.currentTheme = themeName;\n    };\n\n    /**\n     * Get all the JS blocks from the last rendered template.\n     *\n     * @method getJS\n     * @private\n     * @return {string}\n     */\n    Renderer.prototype.getJS = function() {\n        var js = '';\n        if (this.requiredJS.length > 0) {\n            js = this.requiredJS.join(\";\\n\");\n        }\n\n        return js;\n    };\n\n    /**\n     * Treat strings in content.\n     *\n     * The purpose of this method is to replace the placeholders found in a string\n     * with the their respective translated strings.\n     *\n     * Previously we were relying on String.replace() but the complexity increased with\n     * the numbers of strings to replace. Now we manually walk the string and stop at each\n     * placeholder we find, only then we replace it. Most of the time we will\n     * replace all the placeholders in a single run, at times we will need a few\n     * more runs when placeholders are replaced with strings that contain placeholders\n     * themselves.\n     *\n     * @param {String} content The content in which string placeholders are to be found.\n     * @param {Array} strings The strings to replace with.\n     * @return {String} The treated content.\n     */\n    Renderer.prototype.treatStringsInContent = function(content, strings) {\n        var pattern = /\\[\\[_(s|c)\\d+\\]\\]/,\n            treated,\n            index,\n            strIndex,\n            walker,\n            char,\n            strFinal,\n            isClean;\n\n        do {\n            treated = '';\n            index = content.search(pattern);\n            while (index > -1) {\n\n                // Copy the part prior to the placeholder to the treated string.\n                treated += content.substring(0, index);\n                content = content.substr(index);\n                isClean = content[3] == 'c';\n                strIndex = '';\n                walker = 4; // 4 is the length of either '[[_s' or '[[_c'.\n\n                // Walk the characters to manually extract the index of the string from the placeholder.\n                char = content.substr(walker, 1);\n                do {\n                    strIndex += char;\n                    walker++;\n                    char = content.substr(walker, 1);\n                } while (char != ']');\n\n                // Get the string, add it to the treated result, and remove the placeholder from the content to treat.\n                strFinal = strings[parseInt(strIndex, 10)];\n                if (typeof strFinal === 'undefined') {\n                    Log.debug('Could not find string for pattern [[_' + (isClean ? 'c' : 's') + strIndex + ']].');\n                    strFinal = '';\n                }\n                if (isClean) {\n                    strFinal = mustache.escape(strFinal);\n                }\n                treated += strFinal;\n                content = content.substr(6 + strIndex.length); // 6 is the length of the placeholder without the index.\n                                                               // That's either '[[_s]]' or '[[_c]]'.\n\n                // Find the next placeholder.\n                index = content.search(pattern);\n            }\n\n            // The content becomes the treated part with the rest of the content.\n            content = treated + content;\n\n            // Check if we need to walk the content again, in case strings contained placeholders.\n            index = content.search(pattern);\n\n        } while (index > -1);\n\n        return content;\n    };\n\n    /**\n     * Treat strings in content.\n     *\n     * The purpose of this method is to replace the date placeholders found in the\n     * content with the their respective translated dates.\n     *\n     * @param {String} content The content in which string placeholders are to be found.\n     * @param {Array} dates The dates to replace with.\n     * @return {String} The treated content.\n     */\n    Renderer.prototype.treatDatesInContent = function(content, dates) {\n        dates.forEach(function(date, index) {\n            var key = '\\\\[\\\\[_t_' + index + '\\\\]\\\\]';\n            var re = new RegExp(key, 'g');\n            content = content.replace(re, date);\n        });\n\n        return content;\n    };\n\n    /**\n     * Render a template and then call the callback with the result.\n     *\n     * @method doRender\n     * @private\n     * @param {string} templateSource The mustache template to render.\n     * @param {Object} context Simple types used as the context for the template.\n     * @param {String} themeName Name of the current theme.\n     * @return {Promise} object\n     */\n    Renderer.prototype.doRender = function(templateSource, context, themeName) {\n        this.currentThemeName = themeName;\n        var iconTemplate = iconSystem.getTemplateName();\n\n        var pendingPromise = new Pending('core/templates:doRender');\n        return this.getTemplate(iconTemplate).then(function() {\n            this.addHelpers(context, themeName);\n            var result = mustache.render(templateSource, context, this.partialHelper.bind(this));\n            return $.Deferred().resolve(result.trim(), this.getJS()).promise();\n        }.bind(this))\n        .then(function(html, js) {\n            if (this.requiredStrings.length > 0) {\n                return str.get_strings(this.requiredStrings).then(function(strings) {\n\n                    // Make sure string substitutions are done for the userdate\n                    // values as well.\n                    this.requiredDates = this.requiredDates.map(function(date) {\n                        return {\n                            timestamp: this.treatStringsInContent(date.timestamp, strings),\n                            format: this.treatStringsInContent(date.format, strings)\n                        };\n                    }.bind(this));\n\n                    // Why do we not do another call the render here?\n                    //\n                    // Because that would expose DOS holes. E.g.\n                    // I create an assignment called \"{{fish\" which\n                    // would get inserted in the template in the first pass\n                    // and cause the template to die on the second pass (unbalanced).\n                    html = this.treatStringsInContent(html, strings);\n                    js = this.treatStringsInContent(js, strings);\n                    return $.Deferred().resolve(html, js).promise();\n                }.bind(this));\n            }\n\n            return $.Deferred().resolve(html, js).promise();\n        }.bind(this))\n        .then(function(html, js) {\n            // This has to happen after the strings replacement because you can\n            // use the string helper in content for the user date helper.\n            if (this.requiredDates.length > 0) {\n                return UserDate.get(this.requiredDates).then(function(dates) {\n                    html = this.treatDatesInContent(html, dates);\n                    js = this.treatDatesInContent(js, dates);\n                    return $.Deferred().resolve(html, js).promise();\n                }.bind(this));\n            }\n\n            return $.Deferred().resolve(html, js).promise();\n        }.bind(this))\n        .then(function(html, js) {\n            pendingPromise.resolve();\n            return $.Deferred().resolve(html, js).promise();\n        });\n    };\n\n    /**\n     * Execute a block of JS returned from a template.\n     * Call this AFTER adding the template HTML into the DOM so the nodes can be found.\n     *\n     * @method runTemplateJS\n     * @param {string} source - A block of javascript.\n     */\n    var runTemplateJS = function(source) {\n        if (source.trim() !== '') {\n            var newscript = $('<script>').attr('type', 'text/javascript').html(source);\n            $('head').append(newscript);\n        }\n    };\n\n    /**\n     * Do some DOM replacement and trigger correct events and fire javascript.\n     *\n     * @method domReplace\n     * @private\n     * @param {JQuery} element - Element or selector to replace.\n     * @param {String} newHTML - HTML to insert / replace.\n     * @param {String} newJS - Javascript to run after the insertion.\n     * @param {Boolean} replaceChildNodes - Replace only the childnodes, alternative is to replace the entire node.\n     * @return {Array} The list of new DOM Nodes\n     * @fires event:filterContentUpdated\n     */\n    var domReplace = function(element, newHTML, newJS, replaceChildNodes) {\n        var replaceNode = $(element);\n        if (replaceNode.length) {\n            // First create the dom nodes so we have a reference to them.\n            var newNodes = $(newHTML);\n            var yuiNodes = null;\n            // Do the replacement in the page.\n            if (replaceChildNodes) {\n                // Cleanup any YUI event listeners attached to any of these nodes.\n                yuiNodes = new Y.NodeList(replaceNode.children().get());\n                yuiNodes.destroy(true);\n\n                // JQuery will cleanup after itself.\n                replaceNode.empty();\n                replaceNode.append(newNodes);\n            } else {\n                // Cleanup any YUI event listeners attached to any of these nodes.\n                yuiNodes = new Y.NodeList(replaceNode.get());\n                yuiNodes.destroy(true);\n\n                // JQuery will cleanup after itself.\n                replaceNode.replaceWith(newNodes);\n            }\n            // Run any javascript associated with the new HTML.\n            runTemplateJS(newJS);\n            // Notify all filters about the new content.\n            filterEvents.notifyFilterContentUpdated(newNodes);\n\n            return newNodes.get();\n        }\n\n        return [];\n    };\n\n    /**\n     * Scan a template source for partial tags and return a list of the found partials.\n     *\n     * @method scanForPartials\n     * @private\n     * @param {string} templateSource - source template to scan.\n     * @return {Array} List of partials.\n     */\n    Renderer.prototype.scanForPartials = function(templateSource) {\n        var tokens = mustache.parse(templateSource),\n            partials = [];\n\n        var findPartial = function(tokens, partials) {\n            var i, token;\n            for (i = 0; i < tokens.length; i++) {\n                token = tokens[i];\n                if (token[0] == '>' || token[0] == '<') {\n                    partials.push(token[1]);\n                }\n                if (token.length > 4) {\n                    findPartial(token[4], partials);\n                }\n            }\n        };\n\n        findPartial(tokens, partials);\n\n        return partials;\n    };\n\n    /**\n     * Load a template and scan it for partials. Recursively fetch the partials.\n     *\n     * @method cachePartials\n     * @private\n     * @param {string} templateName - should consist of the component and the name of the template like this:\n     *                              core/menu (lib/templates/menu.mustache) or\n     *                              tool_bananas/yellow (admin/tool/bananas/templates/yellow.mustache)\n     * @param {Array} parentage - A list of requested partials in this render chain.\n     * @return {Promise} JQuery promise object resolved when all partials are in the cache.\n     */\n    Renderer.prototype.cachePartials = function(templateName, parentage) {\n        var searchKey = this.currentThemeName + '/' + templateName;\n\n        if (searchKey in cachePartialPromises) {\n            return cachePartialPromises[searchKey];\n        }\n\n        // This promise will not be resolved until all child partials are also resolved and ready.\n        // We create it here to allow us to check for recursive inclusion of templates.\n        // Keep track of the requested partials in this chain.\n        parentage = parentage || [searchKey];\n\n        cachePartialPromises[searchKey] = $.Deferred();\n\n        this.getTemplate(templateName)\n        .then(function(templateSource) {\n            var partials = this.scanForPartials(templateSource);\n            var uniquePartials = partials.filter(function(partialName) {\n                // Check for recursion.\n\n                if (parentage.indexOf(this.currentThemeName + '/' + partialName) >= 0) {\n                    // Ignore templates which include a parent template already requested in the current chain.\n                    return false;\n                }\n\n                // Ignore templates that include themselves.\n                return partialName != templateName;\n            }.bind(this));\n\n            // Fetch any partial which has not already been fetched.\n            var fetchThemAll = uniquePartials.map(function(partialName) {\n                parentage.push(this.currentThemeName + '/' + partialName);\n                return this.cachePartials(partialName, parentage);\n            }.bind(this));\n\n            // Resolve the templateName promise when all of the children are resolved.\n            return $.when.apply($, fetchThemAll)\n            .then(function() {\n                return cachePartialPromises[searchKey].resolve(templateSource);\n            });\n        }.bind(this))\n        .catch(cachePartialPromises[searchKey].reject);\n\n        return cachePartialPromises[searchKey];\n    };\n\n    /**\n     * Load a template and call doRender on it.\n     *\n     * @method render\n     * @private\n     * @param {string} templateName - should consist of the component and the name of the template like this:\n     *                              core/menu (lib/templates/menu.mustache) or\n     *                              tool_bananas/yellow (admin/tool/bananas/templates/yellow.mustache)\n     * @param {Object} context - Could be array, string or simple value for the context of the template.\n     * @param {string} themeName - Name of the current theme.\n     * @return {Promise} JQuery promise object resolved when the template has been rendered.\n     */\n    Renderer.prototype.render = function(templateName, context, themeName) {\n        if (typeof (themeName) === \"undefined\") {\n            // System context by default.\n            themeName = config.theme;\n        }\n\n        this.currentThemeName = themeName;\n\n        // Preload the module to do the icon rendering based on the theme iconsystem.\n        var modulename = config.iconsystemmodule;\n\n        var ready = $.Deferred();\n        require([modulename], function(System) {\n            var system = new System();\n            if (!(system instanceof IconSystem)) {\n                ready.reject('Invalid icon system specified' + config.iconsystem);\n            } else {\n                iconSystem = system;\n                system.init().then(ready.resolve).catch(notification.exception);\n            }\n        });\n\n        return ready.then(function() {\n                return this.cachePartials(templateName);\n            }.bind(this)).then(function(templateSource) {\n                return this.doRender(templateSource, context, themeName);\n            }.bind(this));\n    };\n\n    /**\n     * Prepend some HTML to a node and trigger events and fire javascript.\n     *\n     * @method domPrepend\n     * @private\n     * @param {jQuery|String} element - Element or selector to prepend HTML to\n     * @param {String} html - HTML to prepend\n     * @param {String} js - Javascript to run after we prepend the html\n     * @return {Array} The list of new DOM Nodes\n     * @fires event:filterContentUpdated\n     */\n    var domPrepend = function(element, html, js) {\n        var node = $(element);\n        if (node.length) {\n            // Prepend the html.\n            var newContent = $(html);\n            node.prepend(newContent);\n            // Run any javascript associated with the new HTML.\n            runTemplateJS(js);\n            // Notify all filters about the new content.\n            filterEvents.notifyFilterContentUpdated(node);\n\n            return newContent.get();\n        }\n\n        return [];\n    };\n\n    /**\n     * Append some HTML to a node and trigger events and fire javascript.\n     *\n     * @method domAppend\n     * @private\n     * @param {jQuery|String} element - Element or selector to append HTML to\n     * @param {String} html - HTML to append\n     * @param {String} js - Javascript to run after we append the html\n     * @return {Array} The list of new DOM Nodes\n     * @fires event:filterContentUpdated\n     */\n    var domAppend = function(element, html, js) {\n        var node = $(element);\n        if (node.length) {\n            // Append the html.\n            var newContent = $(html);\n            node.append(newContent);\n            // Run any javascript associated with the new HTML.\n            runTemplateJS(js);\n            // Notify all filters about the new content.\n            filterEvents.notifyFilterContentUpdated(node);\n\n            return newContent.get();\n        }\n\n        return [];\n    };\n\n    return /** @alias module:core/templates */ {\n        // Public variables and functions.\n        /**\n         * Every call to render creates a new instance of the class and calls render on it. This\n         * means each render call has it's own class variables.\n         *\n         * @method render\n         * @private\n         * @param {string} templateName - should consist of the component and the name of the template like this:\n         *                              core/menu (lib/templates/menu.mustache) or\n         *                              tool_bananas/yellow (admin/tool/bananas/templates/yellow.mustache)\n         * @param {Object} context - Could be array, string or simple value for the context of the template.\n         * @param {string} themeName - Name of the current theme.\n         * @return {Promise} JQuery promise object resolved when the template has been rendered.\n         */\n        render: function(templateName, context, themeName) {\n            var renderer = new Renderer();\n            return renderer.render(templateName, context, themeName);\n        },\n\n        /**\n         * Prefetch a set of templates without rendering them.\n         *\n         * @method getTemplate\n         * @param {Array} templateNames The list of templates to fetch\n         * @param {String} themeName\n         * @returns {Promise}\n         */\n        prefetchTemplates: function(templateNames, themeName) {\n            var renderer = new Renderer();\n\n            if (typeof themeName === \"undefined\") {\n                // System context by default.\n                themeName = config.theme;\n            }\n\n            return renderer.prefetchTemplates(templateNames, themeName);\n        },\n\n        /**\n         * Every call to render creates a new instance of the class and calls render on it. This\n         * means each render call has it's own class variables.\n         *\n         * This alernate to the standard .render() function returns the html and js in a single object suitable for a\n         * native Promise.\n         *\n         * @method renderForPromise\n         * @private\n         * @param {string} templateName - should consist of the component and the name of the template like this:\n         *                              core/menu (lib/templates/menu.mustache) or\n         *                              tool_bananas/yellow (admin/tool/bananas/templates/yellow.mustache)\n         * @param {Object} context - Could be array, string or simple value for the context of the template.\n         * @param {string} themeName - Name of the current theme.\n         * @return {Promise} JQuery promise object resolved when the template has been rendered.\n         */\n        renderForPromise: function(templateName, context, themeName) {\n            var renderer = new Renderer();\n            return renderer.render(templateName, context, themeName)\n            .then(function(html, js) {\n                return {\n                    html: html,\n                    js: js,\n                };\n            });\n        },\n\n        /**\n         * Every call to renderIcon creates a new instance of the class and calls renderIcon on it. This\n         * means each render call has it's own class variables.\n         *\n         * @method renderIcon\n         * @public\n         * @param {string} key - Icon key.\n         * @param {string} component - Icon component\n         * @param {string} title - Icon title\n         * @return {Promise} JQuery promise object resolved when the pix has been rendered.\n         */\n        renderPix: function(key, component, title) {\n            var renderer = new Renderer();\n            return renderer.renderIcon(\n                key,\n                getNormalisedComponent(component),\n                title\n            );\n        },\n\n        /**\n         * Execute a block of JS returned from a template.\n         * Call this AFTER adding the template HTML into the DOM so the nodes can be found.\n         *\n         * @method runTemplateJS\n         * @param {string} source - A block of javascript.\n         */\n        runTemplateJS: runTemplateJS,\n\n        /**\n         * Replace a node in the page with some new HTML and run the JS.\n         *\n         * @method replaceNodeContents\n         * @param {JQuery} element - Element or selector to replace.\n         * @param {String} newHTML - HTML to insert / replace.\n         * @param {String} newJS - Javascript to run after the insertion.\n         * @return {Array} The list of new DOM Nodes\n         */\n        replaceNodeContents: function(element, newHTML, newJS) {\n            return domReplace(element, newHTML, newJS, true);\n        },\n\n        /**\n         * Insert a node in the page with some new HTML and run the JS.\n         *\n         * @method replaceNode\n         * @param {JQuery} element - Element or selector to replace.\n         * @param {String} newHTML - HTML to insert / replace.\n         * @param {String} newJS - Javascript to run after the insertion.\n         * @return {Array} The list of new DOM Nodes\n         */\n        replaceNode: function(element, newHTML, newJS) {\n            return domReplace(element, newHTML, newJS, false);\n        },\n\n        /**\n         * Prepend some HTML to a node and trigger events and fire javascript.\n         *\n         * @method prependNodeContents\n         * @param {jQuery|String} element - Element or selector to prepend HTML to\n         * @param {String} html - HTML to prepend\n         * @param {String} js - Javascript to run after we prepend the html\n         * @return {Array} The list of new DOM Nodes\n         */\n        prependNodeContents: function(element, html, js) {\n            return domPrepend(element, html, js);\n        },\n\n        /**\n         * Append some HTML to a node and trigger events and fire javascript.\n         *\n         * @method appendNodeContents\n         * @param {jQuery|String} element - Element or selector to append HTML to\n         * @param {String} html - HTML to append\n         * @param {String} js - Javascript to run after we append the html\n         * @return 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\ No newline at end of file
+{"version":3,"file":"templates.min.js","sources":["../src/templates.js"],"sourcesContent":["// 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 * Template renderer for Moodle. Load and render Moodle templates with Mustache.\n *\n * @module     core/templates\n * @copyright  2015 Damyon Wiese <damyon@moodle.com>\n * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later\n * @since      2.9\n */\ndefine([\n    'core/mustache',\n    'jquery',\n    'core/ajax',\n    'core/str',\n    'core/notification',\n    'core/url',\n    'core/config',\n    'core/localstorage',\n    'core/icon_system',\n    'core_filters/events',\n    'core/yui',\n    'core/log',\n    'core/truncate',\n    'core/user_date',\n    'core/pending',\n],\nfunction(\n    mustache,\n    $,\n    ajax,\n    str,\n    notification,\n    coreurl,\n    config,\n    storage,\n    IconSystem,\n    filterEvents,\n    Y,\n    Log,\n    Truncate,\n    UserDate,\n    Pending\n) {\n\n    // Module variables.\n    /** @var {Number} uniqInstances Count of times this constructor has been called. */\n    var uniqInstances = 0;\n\n    /** @var {String[]} templateCache - Cache of already loaded template strings */\n    var templateCache = {};\n\n    /** @var {Promise[]} templatePromises - Cache of already loaded template promises */\n    var templatePromises = {};\n\n    /** @var {Promise[]} cachePartialPromises - Cache of already loaded template partial promises */\n    var cachePartialPromises = {};\n\n    /** @var {Object} iconSystem - Object extending core/iconsystem */\n    var iconSystem = {};\n\n    /** @var {Object[]} loadTemplateBuffer - List of templates to be loaded */\n    var loadTemplateBuffer = [];\n\n    /** @var {Bool} isLoadingTemplates - Whether templates are currently being loaded */\n    var isLoadingTemplates = false;\n\n    /** @var {Array} disallowedNestedHelpers - List of helpers that can't be called within other helpers */\n    var disallowedNestedHelpers = ['js'];\n\n    /**\n     * Normalise the provided component such that '', 'moodle', and 'core' are treated consistently.\n     *\n     * @param   {String} component\n     * @returns {String}\n     */\n    var getNormalisedComponent = function(component) {\n        if (component) {\n            if (component !== 'moodle' && component !== 'core') {\n                return component;\n            }\n        }\n\n        return 'core';\n    };\n\n    /**\n     * Search the various caches for a template promise for the given search key.\n     * The search key should be in the format <theme>/<component>/<template> e.g. boost/core/modal.\n     *\n     * If the template is found in any of the caches it will populate the other caches with\n     * the same data as well.\n     *\n     * @param {String} searchKey The template search key in the format <theme>/<component>/<template> e.g. boost/core/modal\n     * @return {Object} jQuery promise resolved with the template source\n     */\n    var getTemplatePromiseFromCache = function(searchKey) {\n        // First try the cache of promises.\n        if (searchKey in templatePromises) {\n            return templatePromises[searchKey];\n        }\n\n        // Check the module cache.\n        if (searchKey in templateCache) {\n            // Add this to the promises cache for future.\n            templatePromises[searchKey] = $.Deferred().resolve(templateCache[searchKey]).promise();\n            return templatePromises[searchKey];\n        }\n\n        if (M.cfg.templaterev <= 0) {\n            // Template caching is disabled. Do not store in persistent storage.\n            return null;\n        }\n\n        // Now try local storage.\n        var cached = storage.get('core_template/' + M.cfg.templaterev + ':' + searchKey);\n        if (cached) {\n            // Add this to the module cache for future.\n            templateCache[searchKey] = cached;\n            // Add this to the promises cache for future.\n            templatePromises[searchKey] = $.Deferred().resolve(cached).promise();\n            return templatePromises[searchKey];\n        }\n\n        return null;\n    };\n\n    /**\n     * Take all of the templates waiting in the buffer and load them from the server\n     * or from the cache.\n     *\n     * All of the templates that need to be loaded from the server will be batched up\n     * and sent in a single network request.\n     */\n    var processLoadTemplateBuffer = function() {\n        if (!loadTemplateBuffer.length) {\n            return;\n        }\n\n        if (isLoadingTemplates) {\n            return;\n        }\n\n        isLoadingTemplates = true;\n        // Grab any templates waiting in the buffer.\n        var templatesToLoad = loadTemplateBuffer.slice();\n        // This will be resolved with the list of promises for the server request.\n        var serverRequestsDeferred = $.Deferred();\n        var requests = [];\n        // Get a list of promises for each of the templates we need to load.\n        var templatePromises = templatesToLoad.map(function(templateData) {\n            var component = getNormalisedComponent(templateData.component);\n            var name = templateData.name;\n            var searchKey = templateData.searchKey;\n            var theme = templateData.theme;\n            var templateDeferred = templateData.deferred;\n            var promise = null;\n\n            // Double check to see if this template happened to have landed in the\n            // cache as a dependency of an earlier template.\n            var cachedPromise = getTemplatePromiseFromCache(searchKey);\n            if (cachedPromise) {\n                // We've seen this template so immediately resolve the existing promise.\n                promise = cachedPromise;\n            } else {\n                // We haven't seen this template yet so we need to request it from\n                // the server.\n                requests.push({\n                    methodname: 'core_output_load_template_with_dependencies',\n                    args: {\n                        component: component,\n                        template: name,\n                        themename: theme,\n                        lang: config.language,\n                    }\n                });\n                // Remember the index in the requests list for this template so that\n                // we can get the appropriate promise back.\n                var index = requests.length - 1;\n\n                // The server deferred will be resolved with a list of all of the promises\n                // that were sent in the order that they were added to the requests array.\n                promise = serverRequestsDeferred.promise()\n                    .then(function(promises) {\n                        // The promise for this template will be the one that matches the index\n                        // for it's entry in the requests array.\n                        //\n                        // Make sure the promise is added to the promises cache for this template\n                        // search key so that we don't request it again.\n                        templatePromises[searchKey] = promises[index].then(function(response) {\n                            var templateSource = null;\n\n                            // Process all of the template dependencies for this template and add\n                            // them to the caches so that we don't request them again later.\n                            response.templates.forEach(function(data) {\n                                data.component = getNormalisedComponent(data.component);\n                                // Generate the search key for this template in the response so that we\n                                // can add it to the caches.\n                                var tempSearchKey = [theme, data.component, data.name].join('/');\n                                // Cache all of the dependent templates because we'll need them to render\n                                // the requested template.\n                                templateCache[tempSearchKey] = data.value;\n\n                                if (M.cfg.templaterev > 0) {\n                                    // The template cache is enabled - set the value there.\n                                    storage.set('core_template/' + M.cfg.templaterev + ':' + tempSearchKey, data.value);\n                                }\n\n                                if (data.component == component && data.name == name) {\n                                    // This is the original template that was requested so remember it to return.\n                                    templateSource = data.value;\n                                }\n                            });\n\n                            if (response.strings.length) {\n                                // If we have strings that the template needs then warm the string cache\n                                // with them now so that we don't need to re-fetch them.\n                                str.cache_strings(response.strings.map(function(data) {\n                                    return {\n                                        component: getNormalisedComponent(data.component),\n                                        key: data.name,\n                                        value: data.value\n                                    };\n                                }));\n                            }\n\n                            // Return the original template source that the user requested.\n                            return templateSource;\n                        });\n\n                        return templatePromises[searchKey];\n                    });\n            }\n\n            return promise\n                .then(function(source) {\n                    // When we've successfully loaded the template then resolve the deferred\n                    // in the buffer so that all of the calling code can proceed.\n                    return templateDeferred.resolve(source);\n                })\n                .catch(function(error) {\n                    // If there was an error loading the template then reject the deferred\n                    // in the buffer so that all of the calling code can proceed.\n                    templateDeferred.reject(error);\n                    // Rethrow for anyone else listening.\n                    throw error;\n                });\n        });\n\n        if (requests.length) {\n            // We have requests to send so resolve the deferred with the promises.\n            serverRequestsDeferred.resolve(ajax.call(requests, true, false, false, 0, M.cfg.templaterev));\n        } else {\n            // Nothing to load so we can resolve our deferred.\n            serverRequestsDeferred.resolve();\n        }\n\n        // Once we've finished loading all of the templates then recurse to process\n        // any templates that may have been added to the buffer in the time that we\n        // were fetching.\n        $.when.apply(null, templatePromises)\n            .then(function() {\n                // Remove the templates we've loaded from the buffer.\n                loadTemplateBuffer.splice(0, templatesToLoad.length);\n                isLoadingTemplates = false;\n                processLoadTemplateBuffer();\n                return;\n            })\n            .catch(function() {\n                // Remove the templates we've loaded from the buffer.\n                loadTemplateBuffer.splice(0, templatesToLoad.length);\n                isLoadingTemplates = false;\n                processLoadTemplateBuffer();\n            });\n    };\n\n    /**\n     * Constructor\n     *\n     * Each call to templates.render gets it's own instance of this class.\n     */\n    var Renderer = function() {\n        this.requiredStrings = [];\n        this.requiredJS = [];\n        this.requiredDates = [];\n        this.currentThemeName = '';\n    };\n    // Class variables and functions.\n\n    /** @var {string[]} requiredStrings - Collection of strings found during the rendering of one template */\n    Renderer.prototype.requiredStrings = null;\n\n    /** @var {object[]} requiredDates - Collection of dates found during the rendering of one template */\n    Renderer.prototype.requiredDates = [];\n\n    /** @var {string[]} requiredJS - Collection of js blocks found during the rendering of one template */\n    Renderer.prototype.requiredJS = null;\n\n    /** @var {String} themeName for the current render */\n    Renderer.prototype.currentThemeName = '';\n\n    /**\n     * Load a template.\n     *\n     * @method getTemplate\n     * @private\n     * @param {string} templateName - should consist of the component and the name of the template like this:\n     *                              core/menu (lib/templates/menu.mustache) or\n     *                              tool_bananas/yellow (admin/tool/bananas/templates/yellow.mustache)\n     * @return {Promise} JQuery promise object resolved when the template has been fetched.\n     */\n    Renderer.prototype.getTemplate = function(templateName) {\n        var currentTheme = this.currentThemeName;\n        var searchKey = currentTheme + '/' + templateName;\n\n        // If we haven't already seen this template then buffer it.\n        var cachedPromise = getTemplatePromiseFromCache(searchKey);\n        if (cachedPromise) {\n            return cachedPromise;\n        }\n\n        // Check the buffer to see if this template has already been added.\n        var existingBufferRecords = loadTemplateBuffer.filter(function(record) {\n            return record.searchKey == searchKey;\n        });\n        if (existingBufferRecords.length) {\n            // This template is already in the buffer so just return the existing\n            // promise. No need to add it to the buffer again.\n            return existingBufferRecords[0].deferred.promise();\n        }\n\n        // This is the first time this has been requested so let's add it to the buffer\n        // to be loaded.\n        var parts = templateName.split('/');\n        var component = getNormalisedComponent(parts.shift());\n        var name = parts.join('/');\n        var deferred = $.Deferred();\n\n        // Add this template to the buffer to be loaded.\n        loadTemplateBuffer.push({\n            component: component,\n            name: name,\n            theme: currentTheme,\n            searchKey: searchKey,\n            deferred: deferred\n        });\n\n        // We know there is at least one thing in the buffer so kick off a processing run.\n        processLoadTemplateBuffer();\n        return deferred.promise();\n    };\n\n    /**\n     * Prefetch a set of templates without rendering them.\n     *\n     * @param {Array} templateNames The list of templates to fetch\n     * @param {String} currentTheme\n     */\n    Renderer.prototype.prefetchTemplates = function(templateNames, currentTheme) {\n        templateNames.forEach(function(templateName) {\n            var searchKey = currentTheme + '/' + templateName;\n\n            // If we haven't already seen this template then buffer it.\n            if (getTemplatePromiseFromCache(searchKey)) {\n                return;\n            }\n\n            // Check the buffer to see if this template has already been added.\n            var existingBufferRecords = loadTemplateBuffer.filter(function(record) {\n                return record.searchKey == searchKey;\n            });\n\n            if (existingBufferRecords.length) {\n                // This template is already in the buffer so just return the existing promise.\n                // No need to add it to the buffer again.\n                return;\n            }\n\n            // This is the first time this has been requested so let's add it to the buffer to be loaded.\n            var parts = templateName.split('/');\n            var component = getNormalisedComponent(parts.shift());\n            var name = parts.join('/');\n\n            // Add this template to the buffer to be loaded.\n            loadTemplateBuffer.push({\n                component: component,\n                name: name,\n                theme: currentTheme,\n                searchKey: searchKey,\n                deferred: $.Deferred(),\n            });\n        });\n\n        processLoadTemplateBuffer();\n    };\n\n    /**\n     * Load a partial from the cache or ajax.\n     *\n     * @method partialHelper\n     * @private\n     * @param {string} name The partial name to load.\n     * @return {string}\n     */\n    Renderer.prototype.partialHelper = function(name) {\n\n        var searchKey = this.currentThemeName + '/' + name;\n\n        if (!(searchKey in templateCache)) {\n            notification.exception(new Error('Failed to pre-fetch the template: ' + name));\n        }\n\n        return templateCache[searchKey];\n    };\n\n    /**\n     * Render a single image icon.\n     *\n     * @method renderIcon\n     * @private\n     * @param {string} key The icon key.\n     * @param {string} component The component name.\n     * @param {string} title The icon title\n     * @return {Promise}\n     */\n    Renderer.prototype.renderIcon = function(key, component, title) {\n        // Preload the module to do the icon rendering based on the theme iconsystem.\n        var modulename = config.iconsystemmodule;\n        component = getNormalisedComponent(component);\n\n        // RequireJS does not return a promise.\n        var ready = $.Deferred();\n        require([modulename], function(System) {\n            var system = new System();\n            if (!(system instanceof IconSystem)) {\n                ready.reject('Invalid icon system specified' + config.iconsystemmodule);\n            } else {\n                iconSystem = system;\n                system.init().then(ready.resolve).catch(notification.exception);\n            }\n        });\n\n        return ready.then(function(iconSystem) {\n            return this.getTemplate(iconSystem.getTemplateName());\n        }.bind(this)).then(function(template) {\n            return iconSystem.renderIcon(\n                key,\n                component,\n                title,\n                template\n            );\n        });\n    };\n\n    /**\n     * Render image icons.\n     *\n     * @method pixHelper\n     * @private\n     * @param {object} context The mustache context\n     * @param {string} sectionText The text to parse arguments from.\n     * @param {function} helper Used to render the alt attribute of the text.\n     * @return {string}\n     */\n    Renderer.prototype.pixHelper = function(context, sectionText, helper) {\n        var parts = sectionText.split(',');\n        var key = '';\n        var component = '';\n        var text = '';\n\n        if (parts.length > 0) {\n            key = helper(parts.shift().trim(), context);\n        }\n        if (parts.length > 0) {\n            component = helper(parts.shift().trim(), context);\n        }\n        if (parts.length > 0) {\n            text = helper(parts.join(',').trim(), context);\n        }\n\n        var templateName = iconSystem.getTemplateName();\n        var searchKey = this.currentThemeName + '/' + templateName;\n        var template = templateCache[searchKey];\n\n        component = getNormalisedComponent(component);\n\n        // The key might have been escaped by the JS Mustache engine which\n        // converts forward slashes to HTML entities. Let us undo that here.\n        key = key.replace(/&#x2F;/gi, '/');\n\n        return iconSystem.renderIcon(\n            key,\n            component,\n            text,\n            template\n        );\n    };\n\n    /**\n     * Render blocks of javascript and save them in an array.\n     *\n     * @method jsHelper\n     * @private\n     * @param {object} context The current mustache context.\n     * @param {string} sectionText The text to save as a js block.\n     * @param {function} helper Used to render the block.\n     * @return {string}\n     */\n    Renderer.prototype.jsHelper = function(context, sectionText, helper) {\n        this.requiredJS.push(helper(sectionText, context));\n        return '';\n    };\n\n    /**\n     * String helper used to render {{#str}}abd component { a : 'fish'}{{/str}}\n     * into a get_string call.\n     *\n     * @method stringHelper\n     * @private\n     * @param {object} context The current mustache context.\n     * @param {string} sectionText The text to parse the arguments from.\n     * @param {function} helper Used to render subsections of the text.\n     * @return {string}\n     */\n    Renderer.prototype.stringHelper = function(context, sectionText, helper) {\n        var parts = sectionText.split(',');\n        var key = '';\n        var component = '';\n        var param = '';\n        if (parts.length > 0) {\n            key = parts.shift().trim();\n        }\n        if (parts.length > 0) {\n            component = parts.shift().trim();\n        }\n        if (parts.length > 0) {\n            param = parts.join(',').trim();\n        }\n\n        component = getNormalisedComponent(component);\n\n        if (param !== '') {\n            // Allow variable expansion in the param part only.\n            param = helper(param, context);\n        }\n\n        // Allow json formatted $a arguments.\n        if (param.match(/^{\\s*\"/gm)) {\n            // If it can't be parsed then the string is not a JSON format.\n            try {\n                const parsedParam = JSON.parse(param);\n                // Handle non-exception-throwing cases, e.g. null, integer, boolean.\n                if (parsedParam && typeof parsedParam === \"object\") {\n                    param = parsedParam;\n                }\n            } catch (err) {\n                // This was probably not JSON.\n                // Keep the error message visible.\n                window.console.warn(err.message);\n            }\n        }\n\n        var index = this.requiredStrings.length;\n        this.requiredStrings.push({\n            key: key,\n            component: component,\n            param: param\n        });\n\n        // The placeholder must not use {{}} as those can be misinterpreted by the engine.\n        return '[[_s' + index + ']]';\n    };\n\n    /**\n     * String helper to render {{#cleanstr}}abd component { a : 'fish'}{{/cleanstr}}\n     * into a get_string following by an HTML escape.\n     *\n     * @method cleanStringHelper\n     * @private\n     * @param {object} context The current mustache context.\n     * @param {string} sectionText The text to parse the arguments from.\n     * @param {function} helper Used to render subsections of the text.\n     * @return {string}\n     */\n    Renderer.prototype.cleanStringHelper = function(context, sectionText, helper) {\n        var str = this.stringHelper(context, sectionText, helper);\n\n        // We're going to use [[_cx]] format for clean strings, where x is a number.\n        // Hence, replacing 's' with 'c' in the placeholder that stringHelper returns.\n        return str.replace('s', 'c');\n    };\n\n    /**\n     * Quote helper used to wrap content in quotes, and escape all special JSON characters present in the content.\n     *\n     * @method quoteHelper\n     * @private\n     * @param {object} context The current mustache context.\n     * @param {string} sectionText The text to parse the arguments from.\n     * @param {function} helper Used to render subsections of the text.\n     * @return {string}\n     */\n    Renderer.prototype.quoteHelper = function(context, sectionText, helper) {\n        var content = helper(sectionText.trim(), context);\n\n        // Escape the {{ and JSON encode.\n        // This involves wrapping {{, and }} in change delimeter tags.\n        content = JSON.stringify(content);\n        content = content.replace(/([{}]{2,3})/g, '{{=<% %>=}}$1<%={{ }}=%>');\n        return content;\n    };\n\n    /**\n     * Shorten text helper to truncate text and append a trailing ellipsis.\n     *\n     * @method shortenTextHelper\n     * @private\n     * @param {object} context The current mustache context.\n     * @param {string} sectionText The text to parse the arguments from.\n     * @param {function} helper Used to render subsections of the text.\n     * @return {string}\n     */\n    Renderer.prototype.shortenTextHelper = function(context, sectionText, helper) {\n        // Non-greedy split on comma to grab section text into the length and\n        // text parts.\n        var regex = /(.*?),(.*)/;\n        var parts = sectionText.match(regex);\n        // The length is the part matched in the first set of parethesis.\n        var length = parts[1].trim();\n        // The length is the part matched in the second set of parethesis.\n        var text = parts[2].trim();\n        var content = helper(text, context);\n        return Truncate.truncate(content, {\n            length: length,\n            words: true,\n            ellipsis: '...'\n        });\n    };\n\n    /**\n     * User date helper to render user dates from timestamps.\n     *\n     * @method userDateHelper\n     * @private\n     * @param {object} context The current mustache context.\n     * @param {string} sectionText The text to parse the arguments from.\n     * @param {function} helper Used to render subsections of the text.\n     * @return {string}\n     */\n    Renderer.prototype.userDateHelper = function(context, sectionText, helper) {\n        // Non-greedy split on comma to grab the timestamp and format.\n        var regex = /(.*?),(.*)/;\n        var parts = sectionText.match(regex);\n        var timestamp = helper(parts[1].trim(), context);\n        var format = helper(parts[2].trim(), context);\n        var index = this.requiredDates.length;\n\n        this.requiredDates.push({\n            timestamp: timestamp,\n            format: format\n        });\n\n        return '[[_t_' + index + ']]';\n    };\n\n    /**\n     * Return a helper function to be added to the context for rendering the a\n     * template.\n     *\n     * This will parse the provided text before giving it to the helper function\n     * in order to remove any disallowed nested helpers to prevent one helper\n     * from calling another.\n     *\n     * In particular to prevent the JS helper from being called from within another\n     * helper because it can lead to security issues when the JS portion is user\n     * provided.\n     *\n     * @param  {function} helperFunction The helper function to add\n     * @param  {object} context The template context for the helper function\n     * @return {Function} To be set in the context\n     */\n    Renderer.prototype.addHelperFunction = function(helperFunction, context) {\n        return function() {\n            return function(sectionText, helper) {\n                // Override the disallowed helpers in the template context with\n                // a function that returns an empty string for use when executing\n                // other helpers. This is to prevent these helpers from being\n                // executed as part of the rendering of another helper in order to\n                // prevent any potential security issues.\n                var originalHelpers = disallowedNestedHelpers.reduce(function(carry, name) {\n                    if (context.hasOwnProperty(name)) {\n                        carry[name] = context[name];\n                    }\n\n                    return carry;\n                }, {});\n\n                disallowedNestedHelpers.forEach(function(helperName) {\n                    context[helperName] = function() {\n                        return '';\n                    };\n                });\n\n                // Execute the helper with the modified context that doesn't include\n                // the disallowed nested helpers. This prevents the disallowed\n                // helpers from being called from within other helpers.\n                var result = helperFunction.apply(this, [context, sectionText, helper]);\n\n                // Restore the original helper implementation in the context so that\n                // any further rendering has access to them again.\n                for (var name in originalHelpers) {\n                    context[name] = originalHelpers[name];\n                }\n\n                return result;\n            }.bind(this);\n        }.bind(this);\n    };\n\n    /**\n     * Add some common helper functions to all context objects passed to templates.\n     * These helpers match exactly the helpers available in php.\n     *\n     * @method addHelpers\n     * @private\n     * @param {Object} context Simple types used as the context for the template.\n     * @param {String} themeName We set this multiple times, because there are async calls.\n     */\n    Renderer.prototype.addHelpers = function(context, themeName) {\n        this.currentThemeName = themeName;\n        this.requiredStrings = [];\n        this.requiredJS = [];\n        context.uniqid = (uniqInstances++);\n        context.str = this.addHelperFunction(this.stringHelper, context);\n        context.cleanstr = this.addHelperFunction(this.cleanStringHelper, context);\n        context.pix = this.addHelperFunction(this.pixHelper, context);\n        context.js = this.addHelperFunction(this.jsHelper, context);\n        context.quote = this.addHelperFunction(this.quoteHelper, context);\n        context.shortentext = this.addHelperFunction(this.shortenTextHelper, context);\n        context.userdate = this.addHelperFunction(this.userDateHelper, context);\n        context.globals = {config: config};\n        context.currentTheme = themeName;\n    };\n\n    /**\n     * Get all the JS blocks from the last rendered template.\n     *\n     * @method getJS\n     * @private\n     * @return {string}\n     */\n    Renderer.prototype.getJS = function() {\n        var js = '';\n        if (this.requiredJS.length > 0) {\n            js = this.requiredJS.join(\";\\n\");\n        }\n\n        return js;\n    };\n\n    /**\n     * Treat strings in content.\n     *\n     * The purpose of this method is to replace the placeholders found in a string\n     * with the their respective translated strings.\n     *\n     * Previously we were relying on String.replace() but the complexity increased with\n     * the numbers of strings to replace. Now we manually walk the string and stop at each\n     * placeholder we find, only then we replace it. Most of the time we will\n     * replace all the placeholders in a single run, at times we will need a few\n     * more runs when placeholders are replaced with strings that contain placeholders\n     * themselves.\n     *\n     * @param {String} content The content in which string placeholders are to be found.\n     * @param {Array} strings The strings to replace with.\n     * @return {String} The treated content.\n     */\n    Renderer.prototype.treatStringsInContent = function(content, strings) {\n        var pattern = /\\[\\[_(s|c)\\d+\\]\\]/,\n            treated,\n            index,\n            strIndex,\n            walker,\n            char,\n            strFinal,\n            isClean;\n\n        do {\n            treated = '';\n            index = content.search(pattern);\n            while (index > -1) {\n\n                // Copy the part prior to the placeholder to the treated string.\n                treated += content.substring(0, index);\n                content = content.substr(index);\n                isClean = content[3] == 'c';\n                strIndex = '';\n                walker = 4; // 4 is the length of either '[[_s' or '[[_c'.\n\n                // Walk the characters to manually extract the index of the string from the placeholder.\n                char = content.substr(walker, 1);\n                do {\n                    strIndex += char;\n                    walker++;\n                    char = content.substr(walker, 1);\n                } while (char != ']');\n\n                // Get the string, add it to the treated result, and remove the placeholder from the content to treat.\n                strFinal = strings[parseInt(strIndex, 10)];\n                if (typeof strFinal === 'undefined') {\n                    Log.debug('Could not find string for pattern [[_' + (isClean ? 'c' : 's') + strIndex + ']].');\n                    strFinal = '';\n                }\n                if (isClean) {\n                    strFinal = mustache.escape(strFinal);\n                }\n                treated += strFinal;\n                content = content.substr(6 + strIndex.length); // 6 is the length of the placeholder without the index.\n                                                               // That's either '[[_s]]' or '[[_c]]'.\n\n                // Find the next placeholder.\n                index = content.search(pattern);\n            }\n\n            // The content becomes the treated part with the rest of the content.\n            content = treated + content;\n\n            // Check if we need to walk the content again, in case strings contained placeholders.\n            index = content.search(pattern);\n\n        } while (index > -1);\n\n        return content;\n    };\n\n    /**\n     * Treat strings in content.\n     *\n     * The purpose of this method is to replace the date placeholders found in the\n     * content with the their respective translated dates.\n     *\n     * @param {String} content The content in which string placeholders are to be found.\n     * @param {Array} dates The dates to replace with.\n     * @return {String} The treated content.\n     */\n    Renderer.prototype.treatDatesInContent = function(content, dates) {\n        dates.forEach(function(date, index) {\n            var key = '\\\\[\\\\[_t_' + index + '\\\\]\\\\]';\n            var re = new RegExp(key, 'g');\n            content = content.replace(re, date);\n        });\n\n        return content;\n    };\n\n    /**\n     * Render a template and then call the callback with the result.\n     *\n     * @method doRender\n     * @private\n     * @param {string} templateSource The mustache template to render.\n     * @param {Object} context Simple types used as the context for the template.\n     * @param {String} themeName Name of the current theme.\n     * @return {Promise} object\n     */\n    Renderer.prototype.doRender = function(templateSource, context, themeName) {\n        this.currentThemeName = themeName;\n        var iconTemplate = iconSystem.getTemplateName();\n\n        var pendingPromise = new Pending('core/templates:doRender');\n        return this.getTemplate(iconTemplate).then(function() {\n            this.addHelpers(context, themeName);\n            var result = mustache.render(templateSource, context, this.partialHelper.bind(this));\n            return $.Deferred().resolve(result.trim(), this.getJS()).promise();\n        }.bind(this))\n        .then(function(html, js) {\n            if (this.requiredStrings.length > 0) {\n                return str.get_strings(this.requiredStrings).then(function(strings) {\n\n                    // Make sure string substitutions are done for the userdate\n                    // values as well.\n                    this.requiredDates = this.requiredDates.map(function(date) {\n                        return {\n                            timestamp: this.treatStringsInContent(date.timestamp, strings),\n                            format: this.treatStringsInContent(date.format, strings)\n                        };\n                    }.bind(this));\n\n                    // Why do we not do another call the render here?\n                    //\n                    // Because that would expose DOS holes. E.g.\n                    // I create an assignment called \"{{fish\" which\n                    // would get inserted in the template in the first pass\n                    // and cause the template to die on the second pass (unbalanced).\n                    html = this.treatStringsInContent(html, strings);\n                    js = this.treatStringsInContent(js, strings);\n                    return $.Deferred().resolve(html, js).promise();\n                }.bind(this));\n            }\n\n            return $.Deferred().resolve(html, js).promise();\n        }.bind(this))\n        .then(function(html, js) {\n            // This has to happen after the strings replacement because you can\n            // use the string helper in content for the user date helper.\n            if (this.requiredDates.length > 0) {\n                return UserDate.get(this.requiredDates).then(function(dates) {\n                    html = this.treatDatesInContent(html, dates);\n                    js = this.treatDatesInContent(js, dates);\n                    return $.Deferred().resolve(html, js).promise();\n                }.bind(this));\n            }\n\n            return $.Deferred().resolve(html, js).promise();\n        }.bind(this))\n        .then(function(html, js) {\n            pendingPromise.resolve();\n            return $.Deferred().resolve(html, js).promise();\n        });\n    };\n\n    /**\n     * Execute a block of JS returned from a template.\n     * Call this AFTER adding the template HTML into the DOM so the nodes can be found.\n     *\n     * @method runTemplateJS\n     * @param {string} source - A block of javascript.\n     */\n    var runTemplateJS = function(source) {\n        if (source.trim() !== '') {\n            var newscript = $('<script>').attr('type', 'text/javascript').html(source);\n            $('head').append(newscript);\n        }\n    };\n\n    /**\n     * Do some DOM replacement and trigger correct events and fire javascript.\n     *\n     * @method domReplace\n     * @private\n     * @param {JQuery} element - Element or selector to replace.\n     * @param {String} newHTML - HTML to insert / replace.\n     * @param {String} newJS - Javascript to run after the insertion.\n     * @param {Boolean} replaceChildNodes - Replace only the childnodes, alternative is to replace the entire node.\n     * @return {Array} The list of new DOM Nodes\n     * @fires event:filterContentUpdated\n     */\n    var domReplace = function(element, newHTML, newJS, replaceChildNodes) {\n        var replaceNode = $(element);\n        if (replaceNode.length) {\n            // First create the dom nodes so we have a reference to them.\n            var newNodes = $(newHTML);\n            var yuiNodes = null;\n            // Do the replacement in the page.\n            if (replaceChildNodes) {\n                // Cleanup any YUI event listeners attached to any of these nodes.\n                yuiNodes = new Y.NodeList(replaceNode.children().get());\n                yuiNodes.destroy(true);\n\n                // JQuery will cleanup after itself.\n                replaceNode.empty();\n                replaceNode.append(newNodes);\n            } else {\n                // Cleanup any YUI event listeners attached to any of these nodes.\n                yuiNodes = new Y.NodeList(replaceNode.get());\n                yuiNodes.destroy(true);\n\n                // JQuery will cleanup after itself.\n                replaceNode.replaceWith(newNodes);\n            }\n            // Run any javascript associated with the new HTML.\n            runTemplateJS(newJS);\n            // Notify all filters about the new content.\n            filterEvents.notifyFilterContentUpdated(newNodes);\n\n            return newNodes.get();\n        }\n\n        return [];\n    };\n\n    /**\n     * Scan a template source for partial tags and return a list of the found partials.\n     *\n     * @method scanForPartials\n     * @private\n     * @param {string} templateSource - source template to scan.\n     * @return {Array} List of partials.\n     */\n    Renderer.prototype.scanForPartials = function(templateSource) {\n        var tokens = mustache.parse(templateSource),\n            partials = [];\n\n        var findPartial = function(tokens, partials) {\n            var i, token;\n            for (i = 0; i < tokens.length; i++) {\n                token = tokens[i];\n                if (token[0] == '>' || token[0] == '<') {\n                    partials.push(token[1]);\n                }\n                if (token.length > 4) {\n                    findPartial(token[4], partials);\n                }\n            }\n        };\n\n        findPartial(tokens, partials);\n\n        return partials;\n    };\n\n    /**\n     * Load a template and scan it for partials. Recursively fetch the partials.\n     *\n     * @method cachePartials\n     * @private\n     * @param {string} templateName - should consist of the component and the name of the template like this:\n     *                              core/menu (lib/templates/menu.mustache) or\n     *                              tool_bananas/yellow (admin/tool/bananas/templates/yellow.mustache)\n     * @param {Array} parentage - A list of requested partials in this render chain.\n     * @return {Promise} JQuery promise object resolved when all partials are in the cache.\n     */\n    Renderer.prototype.cachePartials = function(templateName, parentage) {\n        var searchKey = this.currentThemeName + '/' + templateName;\n\n        if (searchKey in cachePartialPromises) {\n            return cachePartialPromises[searchKey];\n        }\n\n        // This promise will not be resolved until all child partials are also resolved and ready.\n        // We create it here to allow us to check for recursive inclusion of templates.\n        // Keep track of the requested partials in this chain.\n        parentage = parentage || [searchKey];\n\n        cachePartialPromises[searchKey] = $.Deferred();\n\n        this.getTemplate(templateName)\n        .then(function(templateSource) {\n            var partials = this.scanForPartials(templateSource);\n            var uniquePartials = partials.filter(function(partialName) {\n                // Check for recursion.\n\n                if (parentage.indexOf(this.currentThemeName + '/' + partialName) >= 0) {\n                    // Ignore templates which include a parent template already requested in the current chain.\n                    return false;\n                }\n\n                // Ignore templates that include themselves.\n                return partialName != templateName;\n            }.bind(this));\n\n            // Fetch any partial which has not already been fetched.\n            var fetchThemAll = uniquePartials.map(function(partialName) {\n                parentage.push(this.currentThemeName + '/' + partialName);\n                return this.cachePartials(partialName, parentage);\n            }.bind(this));\n\n            // Resolve the templateName promise when all of the children are resolved.\n            return $.when.apply($, fetchThemAll)\n            .then(function() {\n                return cachePartialPromises[searchKey].resolve(templateSource);\n            });\n        }.bind(this))\n        .catch(cachePartialPromises[searchKey].reject);\n\n        return cachePartialPromises[searchKey];\n    };\n\n    /**\n     * Load a template and call doRender on it.\n     *\n     * @method render\n     * @private\n     * @param {string} templateName - should consist of the component and the name of the template like this:\n     *                              core/menu (lib/templates/menu.mustache) or\n     *                              tool_bananas/yellow (admin/tool/bananas/templates/yellow.mustache)\n     * @param {Object} context - Could be array, string or simple value for the context of the template.\n     * @param {string} themeName - Name of the current theme.\n     * @return {Promise} JQuery promise object resolved when the template has been rendered.\n     */\n    Renderer.prototype.render = function(templateName, context, themeName) {\n        if (typeof (themeName) === \"undefined\") {\n            // System context by default.\n            themeName = config.theme;\n        }\n\n        this.currentThemeName = themeName;\n\n        // Preload the module to do the icon rendering based on the theme iconsystem.\n        var modulename = config.iconsystemmodule;\n\n        var ready = $.Deferred();\n        require([modulename], function(System) {\n            var system = new System();\n            if (!(system instanceof IconSystem)) {\n                ready.reject('Invalid icon system specified' + config.iconsystem);\n            } else {\n                iconSystem = system;\n                system.init().then(ready.resolve).catch(notification.exception);\n            }\n        });\n\n        return ready.then(function() {\n                return this.cachePartials(templateName);\n            }.bind(this)).then(function(templateSource) {\n                return this.doRender(templateSource, context, themeName);\n            }.bind(this));\n    };\n\n    /**\n     * Prepend some HTML to a node and trigger events and fire javascript.\n     *\n     * @method domPrepend\n     * @private\n     * @param {jQuery|String} element - Element or selector to prepend HTML to\n     * @param {String} html - HTML to prepend\n     * @param {String} js - Javascript to run after we prepend the html\n     * @return {Array} The list of new DOM Nodes\n     * @fires event:filterContentUpdated\n     */\n    var domPrepend = function(element, html, js) {\n        var node = $(element);\n        if (node.length) {\n            // Prepend the html.\n            var newContent = $(html);\n            node.prepend(newContent);\n            // Run any javascript associated with the new HTML.\n            runTemplateJS(js);\n            // Notify all filters about the new content.\n            filterEvents.notifyFilterContentUpdated(node);\n\n            return newContent.get();\n        }\n\n        return [];\n    };\n\n    /**\n     * Append some HTML to a node and trigger events and fire javascript.\n     *\n     * @method domAppend\n     * @private\n     * @param {jQuery|String} element - Element or selector to append HTML to\n     * @param {String} html - HTML to append\n     * @param {String} js - Javascript to run after we append the html\n     * @return {Array} The list of new DOM Nodes\n     * @fires event:filterContentUpdated\n     */\n    var domAppend = function(element, html, js) {\n        var node = $(element);\n        if (node.length) {\n            // Append the html.\n            var newContent = $(html);\n            node.append(newContent);\n            // Run any javascript associated with the new HTML.\n            runTemplateJS(js);\n            // Notify all filters about the new content.\n            filterEvents.notifyFilterContentUpdated(node);\n\n            return newContent.get();\n        }\n\n        return [];\n    };\n\n    return /** @alias module:core/templates */ {\n        // Public variables and functions.\n        /**\n         * Every call to render creates a new instance of the class and calls render on it. This\n         * means each render call has it's own class variables.\n         *\n         * @method render\n         * @private\n         * @param {string} templateName - should consist of the component and the name of the template like this:\n         *                              core/menu (lib/templates/menu.mustache) or\n         *                              tool_bananas/yellow (admin/tool/bananas/templates/yellow.mustache)\n         * @param {Object} context - Could be array, string or simple value for the context of the template.\n         * @param {string} themeName - Name of the current theme.\n         * @return {Promise} JQuery promise object resolved when the template has been rendered.\n         */\n        render: function(templateName, context, themeName) {\n            var renderer = new Renderer();\n            return renderer.render(templateName, context, themeName);\n        },\n\n        /**\n         * Prefetch a set of templates without rendering them.\n         *\n         * @method getTemplate\n         * @param {Array} templateNames The list of templates to fetch\n         * @param {String} themeName\n         * @returns {Promise}\n         */\n        prefetchTemplates: function(templateNames, themeName) {\n            var renderer = new Renderer();\n\n            if (typeof themeName === \"undefined\") {\n                // System context by default.\n                themeName = config.theme;\n            }\n\n            return renderer.prefetchTemplates(templateNames, themeName);\n        },\n\n        /**\n         * Every call to render creates a new instance of the class and calls render on it. This\n         * means each render call has it's own class variables.\n         *\n         * This alernate to the standard .render() function returns the html and js in a single object suitable for a\n         * native Promise.\n         *\n         * @method renderForPromise\n         * @private\n         * @param {string} templateName - should consist of the component and the name of the template like this:\n         *                              core/menu (lib/templates/menu.mustache) or\n         *                              tool_bananas/yellow (admin/tool/bananas/templates/yellow.mustache)\n         * @param {Object} context - Could be array, string or simple value for the context of the template.\n         * @param {string} themeName - Name of the current theme.\n         * @return {Promise} JQuery promise object resolved when the template has been rendered.\n         */\n        renderForPromise: function(templateName, context, themeName) {\n            var renderer = new Renderer();\n            return renderer.render(templateName, context, themeName)\n            .then(function(html, js) {\n                return {\n                    html: html,\n                    js: js,\n                };\n            });\n        },\n\n        /**\n         * Every call to renderIcon creates a new instance of the class and calls renderIcon on it. This\n         * means each render call has it's own class variables.\n         *\n         * @method renderIcon\n         * @public\n         * @param {string} key - Icon key.\n         * @param {string} component - Icon component\n         * @param {string} title - Icon title\n         * @return {Promise} JQuery promise object resolved when the pix has been rendered.\n         */\n        renderPix: function(key, component, title) {\n            var renderer = new Renderer();\n            return renderer.renderIcon(\n                key,\n                getNormalisedComponent(component),\n                title\n            );\n        },\n\n        /**\n         * Execute a block of JS returned from a template.\n         * Call this AFTER adding the template HTML into the DOM so the nodes can be found.\n         *\n         * @method runTemplateJS\n         * @param {string} source - A block of javascript.\n         */\n        runTemplateJS: runTemplateJS,\n\n        /**\n         * Replace a node in the page with some new HTML and run the JS.\n         *\n         * @method replaceNodeContents\n         * @param {JQuery} element - Element or selector to replace.\n         * @param {String} newHTML - HTML to insert / replace.\n         * @param {String} newJS - Javascript to run after the insertion.\n         * @return {Array} The list of new DOM Nodes\n         */\n        replaceNodeContents: function(element, newHTML, newJS) {\n            return domReplace(element, newHTML, newJS, true);\n        },\n\n        /**\n         * Insert a node in the page with some new HTML and run the JS.\n         *\n         * @method replaceNode\n         * @param {JQuery} element - Element or selector to replace.\n         * @param {String} newHTML - HTML to insert / replace.\n         * @param {String} newJS - Javascript to run after the insertion.\n         * @return {Array} The list of new DOM Nodes\n         */\n        replaceNode: function(element, newHTML, newJS) {\n            return domReplace(element, newHTML, newJS, false);\n        },\n\n        /**\n         * Prepend some HTML to a node and trigger events and fire javascript.\n         *\n         * @method prependNodeContents\n         * @param {jQuery|String} element - Element or selector to prepend HTML to\n         * @param {String} html - HTML to prepend\n         * @param {String} js - Javascript to run after we prepend the html\n         * @return {Array} The list of new DOM Nodes\n         */\n        prependNodeContents: function(element, html, js) {\n            return domPrepend(element, html, js);\n        },\n\n        /**\n         * Append some HTML to a node and trigger events and fire javascript.\n         *\n         * @method appendNodeContents\n         * @param {jQuery|String} element - Element or selector to append HTML to\n         * @param {String} html - HTML to append\n         * @param {String} js - Javascript to run after we append the html\n         * @return 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\ No newline at end of file
diff --git a/lib/amd/build/user_date.min.js b/lib/amd/build/user_date.min.js
index 64ffc12a844af..637896740e5d8 100644
--- a/lib/amd/build/user_date.min.js
+++ b/lib/amd/build/user_date.min.js
@@ -5,6 +5,6 @@
  * @copyright  2017 Ryan Wyllie <ryan@moodle.com>
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
-define("core/user_date",["jquery","core/ajax","core/sessionstorage","core/config"],(function($,Ajax,Storage,Config){var promisesCache={},getKey=function(request){return"core_user_date/"+$("html").attr("lang").replace(/-/g,"_")+"/"+Config.usertimezone+"/"+request.timestamp+"/"+request.format},loadDatesFromServer=function(dates){var args=dates.map((function(data){var fixDay=data.hasOwnProperty("fixday")?data.fixday:1,fixHour=data.hasOwnProperty("fixhour")?data.fixhour:1;return{timestamp:data.timestamp,format:data.format,type:data.type||null,fixday:fixDay,fixhour:fixHour}})),request={methodname:"core_get_user_dates",args:{contextid:Config.contextid,timestamps:args}};return Ajax.call([request],!0,!0)[0].then((function(results){results.dates.forEach((function(value,index){var date=dates[index];!function(key,value){Storage.set(key,value)}(getKey(date),value),date.deferred.resolve(value)}))})).catch((function(ex){dates.forEach((function(date){date.deferred.reject(ex)}))}))};return{get:function(requests){var ajaxRequests=[],promises=[];return requests.forEach((function(request){var key=getKey(request);if(function(key){return void 0!==promisesCache[key]}(key))promises.push(function(key){return promisesCache[key]}(key));else{var deferred=$.Deferred(),cached=function(key){return Storage.get(key)}(key);cached?deferred.resolve(cached):(request.deferred=deferred,ajaxRequests.push(request)),function(key,promise){promisesCache[key]=promise}(key,deferred.promise()),promises.push(deferred.promise())}})),ajaxRequests.length&&loadDatesFromServer(ajaxRequests),$.when.apply($,promises).then((function(){return 1===arguments.length?[arguments[0]]:Array.apply(null,arguments)}))},getUserMidnightForTimestamp:function(timestamp,todayMidnight){var future=timestamp>todayMidnight,diffSeconds=Math.abs(timestamp-todayMidnight),diffDaysInSeconds=86400*(future?Math.floor(diffSeconds/86400):Math.ceil(diffSeconds/86400));return future?todayMidnight+diffDaysInSeconds:todayMidnight-diffDaysInSeconds}}}));
+define("core/user_date",["jquery","core/ajax","core/sessionstorage","core/config"],(function($,Ajax,Storage,Config){var promisesCache={},getKey=function(request){return"core_user_date/"+Config.language+"/"+Config.usertimezone+"/"+request.timestamp+"/"+request.format},loadDatesFromServer=function(dates){var args=dates.map((function(data){var fixDay=data.hasOwnProperty("fixday")?data.fixday:1,fixHour=data.hasOwnProperty("fixhour")?data.fixhour:1;return{timestamp:data.timestamp,format:data.format,type:data.type||null,fixday:fixDay,fixhour:fixHour}})),request={methodname:"core_get_user_dates",args:{contextid:Config.contextid,timestamps:args}};return Ajax.call([request],!0,!0)[0].then((function(results){results.dates.forEach((function(value,index){var date=dates[index];!function(key,value){Storage.set(key,value)}(getKey(date),value),date.deferred.resolve(value)}))})).catch((function(ex){dates.forEach((function(date){date.deferred.reject(ex)}))}))};return{get:function(requests){var ajaxRequests=[],promises=[];return requests.forEach((function(request){var key=getKey(request);if(function(key){return void 0!==promisesCache[key]}(key))promises.push(function(key){return promisesCache[key]}(key));else{var deferred=$.Deferred(),cached=function(key){return Storage.get(key)}(key);cached?deferred.resolve(cached):(request.deferred=deferred,ajaxRequests.push(request)),function(key,promise){promisesCache[key]=promise}(key,deferred.promise()),promises.push(deferred.promise())}})),ajaxRequests.length&&loadDatesFromServer(ajaxRequests),$.when.apply($,promises).then((function(){return 1===arguments.length?[arguments[0]]:Array.apply(null,arguments)}))},getUserMidnightForTimestamp:function(timestamp,todayMidnight){var future=timestamp>todayMidnight,diffSeconds=Math.abs(timestamp-todayMidnight),diffDaysInSeconds=86400*(future?Math.floor(diffSeconds/86400):Math.ceil(diffSeconds/86400));return future?todayMidnight+diffDaysInSeconds:todayMidnight-diffDaysInSeconds}}}));
 
 //# sourceMappingURL=user_date.min.js.map
\ No newline at end of file
diff --git a/lib/amd/build/user_date.min.js.map b/lib/amd/build/user_date.min.js.map
index 12b266f68e564..9bae1aaaed2aa 100644
--- a/lib/amd/build/user_date.min.js.map
+++ b/lib/amd/build/user_date.min.js.map
@@ -1 +1 @@
-{"version":3,"file":"user_date.min.js","sources":["../src/user_date.js"],"sourcesContent":["// 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 * Fetch and render dates from timestamps.\n *\n * @module     core/user_date\n * @copyright  2017 Ryan Wyllie <ryan@moodle.com>\n * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later\n */\ndefine(['jquery', 'core/ajax', 'core/sessionstorage', 'core/config'],\n        function($, Ajax, Storage, Config) {\n\n    var SECONDS_IN_DAY = 86400;\n\n    /** @var {object} promisesCache Store all promises we've seen so far. */\n    var promisesCache = {};\n\n    /**\n     * Generate a cache key for the given request. The request should\n     * have a timestamp and format key.\n     *\n     * @param {object} request\n     * @return {string}\n     */\n    var getKey = function(request) {\n        var language = $('html').attr('lang').replace(/-/g, '_');\n        return 'core_user_date/' +\n               language + '/' +\n               Config.usertimezone + '/' +\n               request.timestamp + '/' +\n               request.format;\n    };\n\n    /**\n     * Retrieve a transformed date from the browser's storage.\n     *\n     * @param {string} key\n     * @return {string}\n     */\n    var getFromLocalStorage = function(key) {\n        return Storage.get(key);\n    };\n\n    /**\n     * Save the transformed date in the browser's storage.\n     *\n     * @param {string} key\n     * @param {string} value\n     */\n    var addToLocalStorage = function(key, value) {\n        Storage.set(key, value);\n    };\n\n    /**\n     * Check if a key is in the module's cache.\n     *\n     * @param {string} key\n     * @return {bool}\n     */\n    var inPromisesCache = function(key) {\n        return (typeof promisesCache[key] !== 'undefined');\n    };\n\n    /**\n     * Retrieve a promise from the module's cache.\n     *\n     * @param {string} key\n     * @return {object} jQuery promise\n     */\n    var getFromPromisesCache = function(key) {\n        return promisesCache[key];\n    };\n\n    /**\n     * Save the given promise in the module's cache.\n     *\n     * @param {string} key\n     * @param {object} promise\n     */\n    var addToPromisesCache = function(key, promise) {\n        promisesCache[key] = promise;\n    };\n\n    /**\n     * Send a request to the server for each of the required timestamp\n     * and format combinations.\n     *\n     * Resolves the date's deferred with the values returned from the\n     * server and saves the value in local storage.\n     *\n     * @param {array} dates\n     * @return {object} jQuery promise\n     */\n    var loadDatesFromServer = function(dates) {\n        var args = dates.map(function(data) {\n            var fixDay = data.hasOwnProperty('fixday') ? data.fixday : 1;\n            var fixHour = data.hasOwnProperty('fixhour') ? data.fixhour : 1;\n            return {\n                timestamp: data.timestamp,\n                format: data.format,\n                type: data.type || null,\n                fixday: fixDay,\n                fixhour: fixHour\n            };\n        });\n\n        var request = {\n            methodname: 'core_get_user_dates',\n            args: {\n                contextid: Config.contextid,\n                timestamps: args\n            }\n        };\n\n        return Ajax.call([request], true, true)[0].then(function(results) {\n            results.dates.forEach(function(value, index) {\n                var date = dates[index];\n                var key = getKey(date);\n\n                addToLocalStorage(key, value);\n                date.deferred.resolve(value);\n            });\n            return;\n        })\n        .catch(function(ex) {\n            // If we failed to retrieve the dates then reject the date's\n            // deferred objects to make sure they don't hang.\n            dates.forEach(function(date) {\n                date.deferred.reject(ex);\n            });\n        });\n    };\n\n    /**\n     * Takes an array of request objects and returns a promise that\n     * is resolved with an array of formatted dates.\n     *\n     * The values in the returned array will be ordered the same as\n     * the request array.\n     *\n     * This function will check both the module's static promises cache\n     * and the browser's session storage to see if the user dates have\n     * already been loaded in order to avoid sending a network request\n     * if possible.\n     *\n     * Only dates not found in either cache will be sent to the server\n     * for transforming.\n     *\n     * A request object must have a timestamp key and a format key and\n     * optionally may have a type key.\n     *\n     * E.g.\n     * var request = [\n     *     {\n     *         timestamp: 1293876000,\n     *         format: '%d %B %Y'\n     *     },\n     *     {\n     *         timestamp: 1293876000,\n     *         format: '%A, %d %B %Y, %I:%M %p',\n     *         type: 'gregorian',\n     *         fixday: false,\n     *         fixhour: false\n     *     }\n     * ];\n     *\n     * UserDate.get(request).done(function(dates) {\n     *     console.log(dates[0]); // prints \"1 January 2011\".\n     *     console.log(dates[1]); // prints \"Saturday, 1 January 2011, 10:00 AM\".\n     * });\n     *\n     * @param {array} requests\n     * @return {object} jQuery promise\n     */\n    var get = function(requests) {\n        var ajaxRequests = [];\n        var promises = [];\n\n        // Loop over each of the requested timestamp/format combos\n        // and add a promise to the promises array for them.\n        requests.forEach(function(request) {\n            var key = getKey(request);\n\n            // If we've already got a promise then use it.\n            if (inPromisesCache(key)) {\n                promises.push(getFromPromisesCache(key));\n            } else {\n                var deferred = $.Deferred();\n                var cached = getFromLocalStorage(key);\n\n                if (cached) {\n                    // If we were able to get the value from session storage\n                    // then we can resolve the deferred with that value. No\n                    // need to ask the server to transform it for us.\n                    deferred.resolve(cached);\n                } else {\n                    // Add this request to the list of ones we need to load\n                    // from the server. Include the deferred so that it can\n                    // be resolved when the server has responded with the\n                    // transformed values.\n                    request.deferred = deferred;\n                    ajaxRequests.push(request);\n                }\n\n                // Remember this promise for next time so that we can\n                // bail out early if it is requested again.\n                addToPromisesCache(key, deferred.promise());\n                promises.push(deferred.promise());\n            }\n        });\n\n        // If we have any requests that we couldn't resolve from the caches\n        // then let's ask the server to get them for us.\n        if (ajaxRequests.length) {\n            loadDatesFromServer(ajaxRequests);\n        }\n\n        // Wait for all of the promises to resolve. Some of them may be waiting\n        // for a response from the server.\n        return $.when.apply($, promises).then(function() {\n            // This looks complicated but it's just converting an unknown\n            // length of arguments into an array for the promise to resolve\n            // with.\n            return arguments.length === 1 ? [arguments[0]] : Array.apply(null, arguments);\n        });\n    };\n\n\n    /**\n     * For a given timestamp get the midnight value in the user's timezone.\n     *\n     * The calculation is performed relative to the user's midnight timestamp\n     * for today to ensure that timezones are preserved.\n     *\n     * E.g.\n     * Input:\n     * timestamp: 1514836800 (01/01/2018 8pm GMT)(02/01/2018 4am GMT+8)\n     * midnight: 1514851200 (02/01/2018 midnight GMT)\n     * Output:\n     * 1514764800 (01/01/2018 midnight GMT)\n     *\n     * Input:\n     * timestamp: 1514836800 (01/01/2018 8pm GMT)(02/01/2018 4am GMT+8)\n     * midnight: 1514822400 (02/01/2018 midnight GMT+8)\n     * Output:\n     * 1514822400 (02/01/2018 midnight GMT+8)\n     *\n     * @param {Number} timestamp The timestamp to calculate from\n     * @param {Number} todayMidnight The user's midnight timestamp\n     * @return {Number} The midnight value of the user's timestamp\n     */\n    var getUserMidnightForTimestamp = function(timestamp, todayMidnight) {\n        var future = timestamp > todayMidnight;\n        var diffSeconds = Math.abs(timestamp - todayMidnight);\n        var diffDays = future ? Math.floor(diffSeconds / SECONDS_IN_DAY) : Math.ceil(diffSeconds / SECONDS_IN_DAY);\n        var diffDaysInSeconds = diffDays * SECONDS_IN_DAY;\n        // Is the timestamp in the future or past?\n        var dayTimestamp = future ? todayMidnight + diffDaysInSeconds : todayMidnight - diffDaysInSeconds;\n        return dayTimestamp;\n    };\n\n    return {\n        get: get,\n        getUserMidnightForTimestamp: getUserMidnightForTimestamp\n    };\n});\n"],"names":["define","$","Ajax","Storage","Config","promisesCache","getKey","request","attr","replace","usertimezone","timestamp","format","loadDatesFromServer","dates","args","map","data","fixDay","hasOwnProperty","fixday","fixHour","fixhour","type","methodname","contextid","timestamps","call","then","results","forEach","value","index","date","key","set","addToLocalStorage","deferred","resolve","catch","ex","reject","get","requests","ajaxRequests","promises","inPromisesCache","push","getFromPromisesCache","Deferred","cached","getFromLocalStorage","promise","addToPromisesCache","length","when","apply","arguments","Array","getUserMidnightForTimestamp","todayMidnight","future","diffSeconds","Math","abs","diffDaysInSeconds","floor","ceil"],"mappings":";;;;;;;AAsBAA,wBAAO,CAAC,SAAU,YAAa,sBAAuB,gBAC9C,SAASC,EAAGC,KAAMC,QAASC,YAK3BC,cAAgB,GAShBC,OAAS,SAASC,eAEX,kBADQN,EAAE,QAAQO,KAAK,QAAQC,QAAQ,KAAM,KAElC,IACXL,OAAOM,aAAe,IACtBH,QAAQI,UAAY,IACpBJ,QAAQK,QA+DfC,oBAAsB,SAASC,WAC3BC,KAAOD,MAAME,KAAI,SAASC,UACtBC,OAASD,KAAKE,eAAe,UAAYF,KAAKG,OAAS,EACvDC,QAAUJ,KAAKE,eAAe,WAAaF,KAAKK,QAAU,QACvD,CACHX,UAAWM,KAAKN,UAChBC,OAAQK,KAAKL,OACbW,KAAMN,KAAKM,MAAQ,KACnBH,OAAQF,OACRI,QAASD,YAIbd,QAAU,CACViB,WAAY,sBACZT,KAAM,CACFU,UAAWrB,OAAOqB,UAClBC,WAAYX,cAIbb,KAAKyB,KAAK,CAACpB,UAAU,GAAM,GAAM,GAAGqB,MAAK,SAASC,SACrDA,QAAQf,MAAMgB,SAAQ,SAASC,MAAOC,WAC9BC,KAAOnB,MAAMkB,QAnEL,SAASE,IAAKH,OAClC5B,QAAQgC,IAAID,IAAKH,OAqETK,CAFU9B,OAAO2B,MAEMF,OACvBE,KAAKI,SAASC,QAAQP,aAI7BQ,OAAM,SAASC,IAGZ1B,MAAMgB,SAAQ,SAASG,MACnBA,KAAKI,SAASI,OAAOD,iBAqI1B,CACHE,IAxFM,SAASC,cACXC,aAAe,GACfC,SAAW,UAIfF,SAASb,SAAQ,SAASvB,aAClB2B,IAAM5B,OAAOC,YA1HH,SAAS2B,iBACW,IAAvB7B,cAAc6B,KA4HrBY,CAAgBZ,KAChBW,SAASE,KApHM,SAASb,YACzB7B,cAAc6B,KAmHCc,CAAqBd,UAChC,KACCG,SAAWpC,EAAEgD,WACbC,OArJU,SAAShB,YACxB/B,QAAQuC,IAAIR,KAoJEiB,CAAoBjB,KAE7BgB,OAIAb,SAASC,QAAQY,SAMjB3C,QAAQ8B,SAAWA,SACnBO,aAAaG,KAAKxC,UA1HT,SAAS2B,IAAKkB,SACnC/C,cAAc6B,KAAOkB,QA8HbC,CAAmBnB,IAAKG,SAASe,WACjCP,SAASE,KAAKV,SAASe,eAM3BR,aAAaU,QACbzC,oBAAoB+B,cAKjB3C,EAAEsD,KAAKC,MAAMvD,EAAG4C,UAAUjB,MAAK,kBAIN,IAArB6B,UAAUH,OAAe,CAACG,UAAU,IAAMC,MAAMF,MAAM,KAAMC,eAwCvEE,4BAZ8B,SAAShD,UAAWiD,mBAC9CC,OAASlD,UAAYiD,cACrBE,YAAcC,KAAKC,IAAIrD,UAAYiD,eAEnCK,kBAnPa,OAkPFJ,OAASE,KAAKG,MAAMJ,YAlPlB,OAkPkDC,KAAKI,KAAKL,YAlP5D,eAqPED,OAASD,cAAgBK,kBAAoBL,cAAgBK"}
\ No newline at end of file
+{"version":3,"file":"user_date.min.js","sources":["../src/user_date.js"],"sourcesContent":["// 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 * Fetch and render dates from timestamps.\n *\n * @module     core/user_date\n * @copyright  2017 Ryan Wyllie <ryan@moodle.com>\n * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later\n */\ndefine(['jquery', 'core/ajax', 'core/sessionstorage', 'core/config'],\n        function($, Ajax, Storage, Config) {\n\n    var SECONDS_IN_DAY = 86400;\n\n    /** @var {object} promisesCache Store all promises we've seen so far. */\n    var promisesCache = {};\n\n    /**\n     * Generate a cache key for the given request. The request should\n     * have a timestamp and format key.\n     *\n     * @param {object} request\n     * @return {string}\n     */\n    var getKey = function(request) {\n        return 'core_user_date/' +\n               Config.language + '/' +\n               Config.usertimezone + '/' +\n               request.timestamp + '/' +\n               request.format;\n    };\n\n    /**\n     * Retrieve a transformed date from the browser's storage.\n     *\n     * @param {string} key\n     * @return {string}\n     */\n    var getFromLocalStorage = function(key) {\n        return Storage.get(key);\n    };\n\n    /**\n     * Save the transformed date in the browser's storage.\n     *\n     * @param {string} key\n     * @param {string} value\n     */\n    var addToLocalStorage = function(key, value) {\n        Storage.set(key, value);\n    };\n\n    /**\n     * Check if a key is in the module's cache.\n     *\n     * @param {string} key\n     * @return {bool}\n     */\n    var inPromisesCache = function(key) {\n        return (typeof promisesCache[key] !== 'undefined');\n    };\n\n    /**\n     * Retrieve a promise from the module's cache.\n     *\n     * @param {string} key\n     * @return {object} jQuery promise\n     */\n    var getFromPromisesCache = function(key) {\n        return promisesCache[key];\n    };\n\n    /**\n     * Save the given promise in the module's cache.\n     *\n     * @param {string} key\n     * @param {object} promise\n     */\n    var addToPromisesCache = function(key, promise) {\n        promisesCache[key] = promise;\n    };\n\n    /**\n     * Send a request to the server for each of the required timestamp\n     * and format combinations.\n     *\n     * Resolves the date's deferred with the values returned from the\n     * server and saves the value in local storage.\n     *\n     * @param {array} dates\n     * @return {object} jQuery promise\n     */\n    var loadDatesFromServer = function(dates) {\n        var args = dates.map(function(data) {\n            var fixDay = data.hasOwnProperty('fixday') ? data.fixday : 1;\n            var fixHour = data.hasOwnProperty('fixhour') ? data.fixhour : 1;\n            return {\n                timestamp: data.timestamp,\n                format: data.format,\n                type: data.type || null,\n                fixday: fixDay,\n                fixhour: fixHour\n            };\n        });\n\n        var request = {\n            methodname: 'core_get_user_dates',\n            args: {\n                contextid: Config.contextid,\n                timestamps: args\n            }\n        };\n\n        return Ajax.call([request], true, true)[0].then(function(results) {\n            results.dates.forEach(function(value, index) {\n                var date = dates[index];\n                var key = getKey(date);\n\n                addToLocalStorage(key, value);\n                date.deferred.resolve(value);\n            });\n            return;\n        })\n        .catch(function(ex) {\n            // If we failed to retrieve the dates then reject the date's\n            // deferred objects to make sure they don't hang.\n            dates.forEach(function(date) {\n                date.deferred.reject(ex);\n            });\n        });\n    };\n\n    /**\n     * Takes an array of request objects and returns a promise that\n     * is resolved with an array of formatted dates.\n     *\n     * The values in the returned array will be ordered the same as\n     * the request array.\n     *\n     * This function will check both the module's static promises cache\n     * and the browser's session storage to see if the user dates have\n     * already been loaded in order to avoid sending a network request\n     * if possible.\n     *\n     * Only dates not found in either cache will be sent to the server\n     * for transforming.\n     *\n     * A request object must have a timestamp key and a format key and\n     * optionally may have a type key.\n     *\n     * E.g.\n     * var request = [\n     *     {\n     *         timestamp: 1293876000,\n     *         format: '%d %B %Y'\n     *     },\n     *     {\n     *         timestamp: 1293876000,\n     *         format: '%A, %d %B %Y, %I:%M %p',\n     *         type: 'gregorian',\n     *         fixday: false,\n     *         fixhour: false\n     *     }\n     * ];\n     *\n     * UserDate.get(request).done(function(dates) {\n     *     console.log(dates[0]); // prints \"1 January 2011\".\n     *     console.log(dates[1]); // prints \"Saturday, 1 January 2011, 10:00 AM\".\n     * });\n     *\n     * @param {array} requests\n     * @return {object} jQuery promise\n     */\n    var get = function(requests) {\n        var ajaxRequests = [];\n        var promises = [];\n\n        // Loop over each of the requested timestamp/format combos\n        // and add a promise to the promises array for them.\n        requests.forEach(function(request) {\n            var key = getKey(request);\n\n            // If we've already got a promise then use it.\n            if (inPromisesCache(key)) {\n                promises.push(getFromPromisesCache(key));\n            } else {\n                var deferred = $.Deferred();\n                var cached = getFromLocalStorage(key);\n\n                if (cached) {\n                    // If we were able to get the value from session storage\n                    // then we can resolve the deferred with that value. No\n                    // need to ask the server to transform it for us.\n                    deferred.resolve(cached);\n                } else {\n                    // Add this request to the list of ones we need to load\n                    // from the server. Include the deferred so that it can\n                    // be resolved when the server has responded with the\n                    // transformed values.\n                    request.deferred = deferred;\n                    ajaxRequests.push(request);\n                }\n\n                // Remember this promise for next time so that we can\n                // bail out early if it is requested again.\n                addToPromisesCache(key, deferred.promise());\n                promises.push(deferred.promise());\n            }\n        });\n\n        // If we have any requests that we couldn't resolve from the caches\n        // then let's ask the server to get them for us.\n        if (ajaxRequests.length) {\n            loadDatesFromServer(ajaxRequests);\n        }\n\n        // Wait for all of the promises to resolve. Some of them may be waiting\n        // for a response from the server.\n        return $.when.apply($, promises).then(function() {\n            // This looks complicated but it's just converting an unknown\n            // length of arguments into an array for the promise to resolve\n            // with.\n            return arguments.length === 1 ? [arguments[0]] : Array.apply(null, arguments);\n        });\n    };\n\n\n    /**\n     * For a given timestamp get the midnight value in the user's timezone.\n     *\n     * The calculation is performed relative to the user's midnight timestamp\n     * for today to ensure that timezones are preserved.\n     *\n     * E.g.\n     * Input:\n     * timestamp: 1514836800 (01/01/2018 8pm GMT)(02/01/2018 4am GMT+8)\n     * midnight: 1514851200 (02/01/2018 midnight GMT)\n     * Output:\n     * 1514764800 (01/01/2018 midnight GMT)\n     *\n     * Input:\n     * timestamp: 1514836800 (01/01/2018 8pm GMT)(02/01/2018 4am GMT+8)\n     * midnight: 1514822400 (02/01/2018 midnight GMT+8)\n     * Output:\n     * 1514822400 (02/01/2018 midnight GMT+8)\n     *\n     * @param {Number} timestamp The timestamp to calculate from\n     * @param {Number} todayMidnight The user's midnight timestamp\n     * @return {Number} The midnight value of the user's timestamp\n     */\n    var getUserMidnightForTimestamp = function(timestamp, todayMidnight) {\n        var future = timestamp > todayMidnight;\n        var diffSeconds = Math.abs(timestamp - todayMidnight);\n        var diffDays = future ? Math.floor(diffSeconds / SECONDS_IN_DAY) : Math.ceil(diffSeconds / SECONDS_IN_DAY);\n        var diffDaysInSeconds = diffDays * SECONDS_IN_DAY;\n        // Is the timestamp in the future or past?\n        var dayTimestamp = future ? todayMidnight + diffDaysInSeconds : todayMidnight - diffDaysInSeconds;\n        return dayTimestamp;\n    };\n\n    return {\n        get: get,\n        getUserMidnightForTimestamp: getUserMidnightForTimestamp\n    };\n});\n"],"names":["define","$","Ajax","Storage","Config","promisesCache","getKey","request","language","usertimezone","timestamp","format","loadDatesFromServer","dates","args","map","data","fixDay","hasOwnProperty","fixday","fixHour","fixhour","type","methodname","contextid","timestamps","call","then","results","forEach","value","index","date","key","set","addToLocalStorage","deferred","resolve","catch","ex","reject","get","requests","ajaxRequests","promises","inPromisesCache","push","getFromPromisesCache","Deferred","cached","getFromLocalStorage","promise","addToPromisesCache","length","when","apply","arguments","Array","getUserMidnightForTimestamp","todayMidnight","future","diffSeconds","Math","abs","diffDaysInSeconds","floor","ceil"],"mappings":";;;;;;;AAsBAA,wBAAO,CAAC,SAAU,YAAa,sBAAuB,gBAC9C,SAASC,EAAGC,KAAMC,QAASC,YAK3BC,cAAgB,GAShBC,OAAS,SAASC,eACX,kBACAH,OAAOI,SAAW,IAClBJ,OAAOK,aAAe,IACtBF,QAAQG,UAAY,IACpBH,QAAQI,QA+DfC,oBAAsB,SAASC,WAC3BC,KAAOD,MAAME,KAAI,SAASC,UACtBC,OAASD,KAAKE,eAAe,UAAYF,KAAKG,OAAS,EACvDC,QAAUJ,KAAKE,eAAe,WAAaF,KAAKK,QAAU,QACvD,CACHX,UAAWM,KAAKN,UAChBC,OAAQK,KAAKL,OACbW,KAAMN,KAAKM,MAAQ,KACnBH,OAAQF,OACRI,QAASD,YAIbb,QAAU,CACVgB,WAAY,sBACZT,KAAM,CACFU,UAAWpB,OAAOoB,UAClBC,WAAYX,cAIbZ,KAAKwB,KAAK,CAACnB,UAAU,GAAM,GAAM,GAAGoB,MAAK,SAASC,SACrDA,QAAQf,MAAMgB,SAAQ,SAASC,MAAOC,WAC9BC,KAAOnB,MAAMkB,QAnEL,SAASE,IAAKH,OAClC3B,QAAQ+B,IAAID,IAAKH,OAqETK,CAFU7B,OAAO0B,MAEMF,OACvBE,KAAKI,SAASC,QAAQP,aAI7BQ,OAAM,SAASC,IAGZ1B,MAAMgB,SAAQ,SAASG,MACnBA,KAAKI,SAASI,OAAOD,iBAqI1B,CACHE,IAxFM,SAASC,cACXC,aAAe,GACfC,SAAW,UAIfF,SAASb,SAAQ,SAAStB,aAClB0B,IAAM3B,OAAOC,YA1HH,SAAS0B,iBACW,IAAvB5B,cAAc4B,KA4HrBY,CAAgBZ,KAChBW,SAASE,KApHM,SAASb,YACzB5B,cAAc4B,KAmHCc,CAAqBd,UAChC,KACCG,SAAWnC,EAAE+C,WACbC,OArJU,SAAShB,YACxB9B,QAAQsC,IAAIR,KAoJEiB,CAAoBjB,KAE7BgB,OAIAb,SAASC,QAAQY,SAMjB1C,QAAQ6B,SAAWA,SACnBO,aAAaG,KAAKvC,UA1HT,SAAS0B,IAAKkB,SACnC9C,cAAc4B,KAAOkB,QA8HbC,CAAmBnB,IAAKG,SAASe,WACjCP,SAASE,KAAKV,SAASe,eAM3BR,aAAaU,QACbzC,oBAAoB+B,cAKjB1C,EAAEqD,KAAKC,MAAMtD,EAAG2C,UAAUjB,MAAK,kBAIN,IAArB6B,UAAUH,OAAe,CAACG,UAAU,IAAMC,MAAMF,MAAM,KAAMC,eAwCvEE,4BAZ8B,SAAShD,UAAWiD,mBAC9CC,OAASlD,UAAYiD,cACrBE,YAAcC,KAAKC,IAAIrD,UAAYiD,eAEnCK,kBAlPa,OAiPFJ,OAASE,KAAKG,MAAMJ,YAjPlB,OAiPkDC,KAAKI,KAAKL,YAjP5D,eAoPED,OAASD,cAAgBK,kBAAoBL,cAAgBK"}
\ No newline at end of file
diff --git a/lib/amd/src/str.js b/lib/amd/src/str.js
index 9a93332051121..34080bfcd50b3 100644
--- a/lib/amd/src/str.js
+++ b/lib/amd/src/str.js
@@ -24,6 +24,7 @@
  */
 import $ from 'jquery';
 import Ajax from 'core/ajax';
+import Config from 'core/config';
 import LocalStorage from 'core/localstorage';
 
 // Module cache for the promises so that we don't make multiple
@@ -101,7 +102,7 @@ export const get_string = (key, component, param, lang) => {
 // eslint-disable-next-line camelcase
 export const get_strings = (requests) => {
     let requestData = [];
-    const pageLang = $('html').attr('lang').replace(/-/g, '_');
+    const pageLang = Config.language;
 
     // Helper function to construct the cache key.
     const getCacheKey = ({key, component, lang = pageLang}) => `core_str/${key}/${component}/${lang}`;
@@ -191,13 +192,11 @@ export const get_strings = (requests) => {
  * @param {string} strings.key The string identifer to fetch
  * @param {string} strings.value The string value
  * @param {string} [strings.component='core'] The componet to fetch from
- * @param {string} [strings.lang] The language to fetch a string for. Defaults to current page language.
+ * @param {string} [strings.lang=Config.language] The language to fetch a string for. Defaults to current page language.
  */
 // eslint-disable-next-line camelcase
 export const cache_strings = (strings) => {
-    const defaultLang = $('html').attr('lang').replace(/-/g, '_');
-
-    strings.forEach(({key, component, value, lang = defaultLang}) => {
+    strings.forEach(({key, component, value, lang = Config.language}) => {
         const cacheKey = ['core_str', key, component, lang].join('/');
 
         // Check M.str caching.
diff --git a/lib/amd/src/templates.js b/lib/amd/src/templates.js
index 7fc1c89598456..3f0a680a90e70 100644
--- a/lib/amd/src/templates.js
+++ b/lib/amd/src/templates.js
@@ -184,7 +184,7 @@ function(
                         component: component,
                         template: name,
                         themename: theme,
-                        lang: $('html').attr('lang').replace(/-/g, '_')
+                        lang: config.language,
                     }
                 });
                 // Remember the index in the requests list for this template so that
diff --git a/lib/amd/src/user_date.js b/lib/amd/src/user_date.js
index 1360d555c9202..f0c66dfde168c 100644
--- a/lib/amd/src/user_date.js
+++ b/lib/amd/src/user_date.js
@@ -36,9 +36,8 @@ define(['jquery', 'core/ajax', 'core/sessionstorage', 'core/config'],
      * @return {string}
      */
     var getKey = function(request) {
-        var language = $('html').attr('lang').replace(/-/g, '_');
         return 'core_user_date/' +
-               language + '/' +
+               Config.language + '/' +
                Config.usertimezone + '/' +
                request.timestamp + '/' +
                request.format;
diff --git a/lib/outputrequirementslib.php b/lib/outputrequirementslib.php
index 65c835d2cef59..a80095dfbec16 100644
--- a/lib/outputrequirementslib.php
+++ b/lib/outputrequirementslib.php
@@ -335,6 +335,7 @@ public function get_config_for_javascript(moodle_page $page, renderer_base $rend
                 'admin'                 => $CFG->admin,
                 'svgicons'              => $page->theme->use_svg_icons(),
                 'usertimezone'          => usertimezone(),
+                'language'              => current_language(),
                 'courseId'              => isset($courseid) ? (int) $courseid : 0,
                 'courseContextId'       => isset($coursecontext) ? $coursecontext->id : 0,
                 'contextid'             => $contextid,
diff --git a/lib/upgrade.txt b/lib/upgrade.txt
index c8e16f5d2aec4..de9dcaeef0ec3 100644
--- a/lib/upgrade.txt
+++ b/lib/upgrade.txt
@@ -1,6 +1,10 @@
 This files describes API changes in core libraries and APIs,
 information provided here is intended especially for developers.
 
+=== 4.1.8 ===
+
+* The current page language is available in new `core/config` language property for Javascript modules
+
 === 4.1.7 ===
 * Add a new parameter to the debounce (core/utils) function allow it to create its own own Pending promise.
 (via options.pending). This is a backport of patch MDL-78779.
diff --git a/mod/chat/tests/behat/chat_calendar_events.feature b/mod/chat/tests/behat/chat_calendar_events.feature
index 164a576709f87..bc5f245b39cb9 100644
--- a/mod/chat/tests/behat/chat_calendar_events.feature
+++ b/mod/chat/tests/behat/chat_calendar_events.feature
@@ -17,18 +17,19 @@ Feature: Chat calendar entries
       | teacher1 | C1 | editingteacher |
       | student1 | C1 | student |
 
-  Scenario: Create a chat activity and do not publish the start date to the calendar
+  Scenario Outline: Create a chat activity with repeated chat times set
+    # Create an activity with repeated chat times
     Given the following "activities" exist:
-      | activity | name           | intro                 | course | idnumber | schedule |
-      | chat     | Test chat name | Test chat description | C1     | chat1    | 0 |
+      | activity | course | name   | schedule      |
+      | chat     | C1     | Chat 1 | <scheduleset> |
     And I log in as "teacher1"
-    When I follow "Calendar" in the user menu
-    Then I should not see "Test chat name"
+    # Confirm Chat activity visibility based on schedule
+    When I am viewing calendar in "upcoming" view
+    Then I <chatvisibility> see "Chat 1"
 
-  Scenario: Create a chat activity and publish the start date to the calendar
-    Given the following "activities" exist:
-      | activity | name           | intro                 | course | idnumber | schedule |
-      | chat     | Test chat name | Test chat description | C1     | chat1    | 1 |
-    And I log in as "teacher1"
-    When I follow "Calendar" in the user menu
-    Then I should see "Test chat name"
+    Examples:
+      | scheduleset | chatvisibility |
+      | 0           | should not     |
+      | 1           | should         |
+      | 2           | should         |
+      | 3           | should         |
diff --git a/mod/chat/tests/behat/chat_view_past_session.feature b/mod/chat/tests/behat/chat_view_past_session.feature
new file mode 100644
index 0000000000000..2b09be78b0e33
--- /dev/null
+++ b/mod/chat/tests/behat/chat_view_past_session.feature
@@ -0,0 +1,47 @@
+@mod @mod_chat @javascript
+Feature: View past chat sessions
+  In order for students to view past chat sessions
+  As a teacher
+  I need to be able to change the mod/chat:readlog permission for students
+
+  Background:
+    Given the following "users" exist:
+      | username | firstname | lastname | email                |
+      | teacher1 | Teacher   | One      | teacher1@example.com |
+      | student1 | Student   | One      | student1@example.com |
+    And the following "course" exist:
+      | fullname | shortname |
+      | Course 1 | C1        |
+    And the following "course enrolments" exist:
+      | user     | course | role           |
+      | teacher1 | C1     | editingteacher |
+      | student1 | C1     | student        |
+
+  Scenario Outline: View past chat sessions
+    # Display or hide past chat session based on example data
+    Given the following "activities" exist:
+      | activity | course | name   | studentlogs       |
+      | chat     | C1     | Chat 1 | <studentlogvalue> |
+    And I am on the "Chat 1" "chat activity" page logged in as teacher1
+    # Display or hide past chat session by default based on mod/chat:readlog setting
+    And the following "role capability" exists:
+      | role             | student          |
+      | mod/chat:readlog | <readpermission> |
+    # Enter chat activity to create a session
+    And I click on "Enter the chat" "link"
+    # Close chat window
+    When I close all opened windows
+    And I reload the page
+    # Confirm that past chat sessions is always visible for teacher
+    Then I should see "Past sessions"
+    # Confirm past chat sessions visibility for student based on settings
+    And I am on the "Chat 1" "chat activity" page logged in as student1
+    And I <sessionvisibility> see "Past sessions"
+
+    # Regardless of studentlogvalue value if readpermission is allowed, then Past sessions will be visible for students
+    Examples:
+      | studentlogvalue | readpermission | sessionvisibility |
+      | 0               | allow          | should            |
+      | 1               | allow          | should            |
+      | 0               | prohibit       | should not        |
+      | 1               | prohibit       | should            |
diff --git a/mod/lesson/tests/behat/lesson_review.feature b/mod/lesson/tests/behat/lesson_review.feature
index 7169af8adb2ba..a03adf89cedb9 100644
--- a/mod/lesson/tests/behat/lesson_review.feature
+++ b/mod/lesson/tests/behat/lesson_review.feature
@@ -16,51 +16,76 @@ Feature: In a lesson activity, students can review the answers they gave to ques
       | user | course | role |
       | teacher1 | C1 | editingteacher |
       | student1 | C1 | student |
-    And the following "activity" exist:
-      | activity   | name             | course | idnumber |
-      | lesson     | Test lesson name | C1     | lesson1  |
+    And the following "activity" exists:
+      | activity    | lesson           |
+      | name        | Test lesson name |
+      | course      | C1               |
+      | idnumber    | lesson1          |
+      # Display ongoing score = Yes
+      | ongoing     | 1                |
+      # Slideshow = Yes
+      | slideshow   | 1                |
+      # Maximum number of answers = 10
+      | maxanswers  | 10               |
+      # Allow student review = Yes
+      | modattempts | 1                |
+      # Maximum number of attempts per question
+      | maxattempts | 3                |
+      # Custom scoring = No
+      | custom      | 0                |
+      # Re-takes allowed = Yes
+      | retake      | 1                |
     And the following "mod_lesson > pages" exist:
       | lesson           | qtype     | title                 | content                   |
       | Test lesson name | numeric   | Hardest question ever | 1 + 1?                    |
       | Test lesson name | truefalse | Next question         | Paper is made from trees. |
     And the following "mod_lesson > answers" exist:
-      | page                  | answer | response         | jumpto    | score |
-      | Hardest question ever | 2      | Correct answer   | Next page | 1     |
-      | Hardest question ever | 1      | Incorrect answer | This page | 0     |
-      | Next question         | True   | Correct          | Next page | 1     |
-      | Next question         | False  | Wrong            | This page | 0     |
-    And I am on the "Test lesson name" "lesson activity editing" page logged in as teacher1
-    And I set the following fields to these values:
-      | Display ongoing score | Yes |
-      | Slideshow | Yes |
-      | Maximum number of answers | 10 |
-      | Allow student review | Yes |
-      | Maximum number of attempts per question | 3 |
-      | Custom scoring | No |
-      | Re-takes allowed | Yes |
-    And I press "Save and display"
+      | page                  | answer | response           | jumpto    | score |
+      | Hardest question ever | 2      | Correct answer 1   | Next page | 1     |
+      | Hardest question ever | 1      | Incorrect answer 1 | This page | 0     |
+      | Next question         | True   | Correct answer 2   | Next page | 1     |
+      | Next question         | False  | Incorrect answer 2 | This page | 0     |
     And I am on the "Test lesson name" "lesson activity" page logged in as student1
     And I should see "You have answered 0 correctly out of 0 attempts."
+    And I should see "1 + 1?"
+    And I wait "1" seconds
     And I set the following fields to these values:
       | Your answer | 1 |
     And I press "Submit"
     And I should see "You have answered 0 correctly out of 1 attempts."
     And I press "Continue"
+    And I should see "1 + 1?"
+    And I wait "1" seconds
     And I set the following fields to these values:
       | Your answer | 2 |
     And I press "Submit"
     And I should see "You have answered 1 correctly out of 2 attempts."
     And I press "Continue"
+    And I should see "Paper is made from trees."
+    And I wait "1" seconds
     And I set the following fields to these values:
       | True | 1 |
     And I press "Submit"
     And I should see "You have answered 2 correctly out of 3 attempts."
+    And I should see "Paper is made from trees."
     And I press "Continue"
+    And I should see "Congratulations - end of lesson reached"
+    And I should see "Number of questions answered: 2"
+    And I should see "Number of correct answers: 2"
+    And I should see "Your score is 2 (out of 3)."
     When I follow "Review lesson"
     Then I should see "You have answered 2 correctly out of 3 attempts."
+    And I should see "1 + 1?"
     And I press "Next page"
     And I should see "You have answered 2 correctly out of 3 attempts."
+    And I should see "1 + 1?"
+    And I should see "Correct answer 1"
     And I press "Continue"
     And I should see "You have answered 2 correctly out of 3 attempts."
+    And I should see "Paper is made from trees."
     And I press "Next page"
     And I should see "You have answered 2 correctly out of 3 attempts."
+    And I should see "Paper is made from trees."
+    And I should see "Correct answer 2"
+    And I press "Continue"
+    And I should see "Congratulations - end of lesson reached"
diff --git a/version.php b/version.php
index 693e641674483..87c9854f61334 100644
--- a/version.php
+++ b/version.php
@@ -29,10 +29,10 @@
 
 defined('MOODLE_INTERNAL') || die();
 
-$version  = 2022112807.01;              // 20221128      = branching date YYYYMMDD - do not modify!
+$version  = 2022112808.00;              // 20221128      = branching date YYYYMMDD - do not modify!
                                         //         RR    = release increments - 00 in DEV branches.
                                         //           .XX = incremental changes.
-$release  = '4.1.7+ (Build: 20231215)'; // Human-friendly version name
-$release .= ' - GIP Recia 4.1.7.1';
+$release  = '4.1.8 (Build: 20231222)'; // Human-friendly version name
+$release .= ' - GIP Recia 4.1.8.1';
 $branch   = '401';                     // This version's branch.
 $maturity = MATURITY_STABLE;             // This version's maturity level.