{"version":3,"file":"str.min.js","sources":["https:\/\/lms.innovativelearning.eu\/lib\/amd\/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. Defaults to current page language.\n *\/\n\/\/ eslint-disable-next-line camelcase\nexport const cache_strings = (strings) => {\n    const defaultLang = $('html').attr('lang').replace(\/-\/g, '_');\n\n    strings.forEach(({key, component, value, lang = defaultLang}) => {\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] = $.Deferred().resolve(value).promise();\n        }\n    });\n};\n\/* eslint-enable no-restricted-properties *\/\n"],"names":["promiseCache","key","component","param","lang","get_strings","then","results","requests","requestData","pageLang","attr","replace","stringPromises","map","request","cacheKey","_ref","getCacheKey","buildReturn","promise","M","str","Promise","resolve","util","get_string","cached","LocalStorage","get","reject","push","methodname","args","stringid","stringparams","done","set","fail","length","call","cfg","langrev","$","when","apply","strings","defaultLang","forEach","_ref2","value","join","Deferred"],"mappings":";;;;;;;;;wQA8BIA,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,UAAW,mBAAE,QAAQC,KAAK,QAAQC,QAAQ,KAAM,KAKhDC,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,gBACpBC,aAAc,mBAAE,QAAQpC,KAAK,QAAQC,QAAQ,KAAM,KAEzDkC,QAAQE,SAAQC,YAAChD,IAACA,IAADC,UAAMA,UAANgD,MAAiBA,MAAjB9C,KAAwBA,KAAO2C,yBACtC\/B,SAAW,CAAC,WAAYf,IAAKC,UAAWE,MAAM+C,KAAK,KAGnDjD,aAAamB,EAAEC,KAAUrB,OAAOoB,EAAEC,IAAIpB,aAClCA,aAAamB,EAAEC,MACjBD,EAAEC,IAAIpB,WAAa,IAGvBmB,EAAEC,IAAIpB,WAAWD,KAAOiD,OAIvBtB,sBAAaC,IAAIb,iCACLqB,IAAIrB,SAAUkC,OAIzBlC,YAAYhB,eACdA,aAAagB,UAAY2B,gBAAES,WAAW5B,QAAQ0B,OAAO9B"}