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{"version":3,"file":"user.min.js","sources":["../../src/comboboxsearch/user.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 * Allow the user to search for learners.\n *\n * @module core_user/comboboxsearch/user\n * @copyright 2023 Mathew May <mathew.solutions>\n * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later\n */\nimport search_combobox from 'core/comboboxsearch/search_combobox';\nimport {getStrings} from 'core/str';\nimport {renderForPromise, replaceNodeContents} from 'core/templates';\nimport $ from 'jquery';\n\nexport default class UserSearch extends search_combobox {\n\n courseID;\n groupID;\n\n // A map of user profile field names that is human-readable.\n profilestringmap = null;\n\n constructor() {\n super();\n // Register a couple of events onto the document since we need to check if they are moving off the component.\n ['click', 'focus'].forEach(eventType => {\n // Since we are handling dropdowns manually, ensure we can close it when moving off.\n document.addEventListener(eventType, e => {\n if (this.searchDropdown.classList.contains('show') && !this.combobox.contains(e.target)) {\n this.toggleDropdown();\n }\n }, true);\n });\n\n // Register keyboard events.\n this.component.addEventListener('keydown', this.keyHandler.bind(this));\n\n // Define our standard lookups.\n this.selectors = {...this.selectors,\n courseid: '[data-region=\"courseid\"]',\n groupid: '[data-region=\"groupid\"]',\n resetPageButton: '[data-action=\"resetpage\"]',\n };\n\n this.courseID = this.component.querySelector(this.selectors.courseid).dataset.courseid;\n this.groupID = document.querySelector(this.selectors.groupid)?.dataset?.groupid;\n this.instance = this.component.querySelector(this.selectors.instance).dataset.instance;\n\n // We need to render some content by default for ARIA purposes.\n this.renderDefault();\n }\n\n static init() {\n return new UserSearch();\n }\n\n /**\n * The overall div that contains the searching widget.\n *\n * @returns {string}\n */\n componentSelector() {\n return '.user-search';\n }\n\n /**\n * The dropdown div that contains the searching widget result space.\n *\n * @returns {string}\n */\n dropdownSelector() {\n return '.usersearchdropdown';\n }\n\n /**\n * Build the content then replace the node.\n */\n async renderDropdown() {\n const {html, js} = await renderForPromise('core_user/comboboxsearch/resultset', {\n users: this.getMatchedResults().slice(0, 5),\n hasresults: this.getMatchedResults().length > 0,\n instance: this.instance,\n matches: this.getMatchedResults().length,\n searchterm: this.getSearchTerm(),\n selectall: this.selectAllResultsLink(),\n });\n replaceNodeContents(this.getHTMLElements().searchDropdown, html, js);\n // Remove aria-activedescendant when the available options change.\n this.searchInput.removeAttribute('aria-activedescendant');\n }\n\n /**\n * Build the content then replace the node by default we want our form to exist.\n */\n async renderDefault() {\n this.setMatchedResults(await this.filterDataset(await this.getDataset()));\n this.filterMatchDataset();\n\n await this.renderDropdown();\n }\n\n /**\n * Get the data we will be searching against in this component.\n *\n * @returns {Promise<*>}\n */\n fetchDataset() {\n throw new Error(`fetchDataset() must be implemented in ${this.constructor.name}`);\n }\n\n /**\n * Dictate to the search component how and what we want to match upon.\n *\n * @param {Array} filterableData\n * @returns {Array} The users that match the given criteria.\n */\n async filterDataset(filterableData) {\n if (this.getPreppedSearchTerm()) {\n const stringMap = await this.getStringMap();\n return filterableData.filter((user) => Object.keys(user).some((key) => {\n if (user[key] === \"\" || user[key] === null || !stringMap.get(key)) {\n return false;\n }\n return user[key].toString().toLowerCase().includes(this.getPreppedSearchTerm());\n }));\n } else {\n return [];\n }\n }\n\n /**\n * Given we have a subset of the dataset, set the field that we matched upon to inform the end user.\n *\n * @returns {Array} The results with the matched fields inserted.\n */\n async filterMatchDataset() {\n const stringMap = await this.getStringMap();\n this.setMatchedResults(\n this.getMatchedResults().map((user) => {\n for (const [key, value] of Object.entries(user)) {\n // Sometimes users have null values in their profile fields.\n if (value === null) {\n continue;\n }\n\n const valueString = value.toString().toLowerCase();\n const preppedSearchTerm = this.getPreppedSearchTerm();\n const searchTerm = this.getSearchTerm();\n\n // Ensure we match only on expected keys.\n const matchingFieldName = stringMap.get(key);\n if (matchingFieldName && valueString.includes(preppedSearchTerm)) {\n user.matchingFieldName = matchingFieldName;\n\n // Safely prepare our matching results.\n const escapedValueString = valueString.replace(/</g, '<');\n const escapedMatchingField = escapedValueString.replace(\n preppedSearchTerm.replace(/</g, '<'),\n `<span class=\"font-weight-bold\">${searchTerm.replace(/</g, '<')}</span>`\n );\n\n if (user.email) {\n user.matchingField = `${escapedMatchingField} (${user.email})`;\n } else {\n user.matchingField = escapedMatchingField;\n }\n break;\n }\n }\n return user;\n })\n );\n }\n\n /**\n * The handler for when a user changes the value of the component (selects an option from the dropdown).\n *\n * @param {Event} e The change event.\n */\n changeHandler(e) {\n this.toggleDropdown(); // Otherwise the dropdown stays open when user choose an option using keyboard.\n\n if (e.target.value === '0') {\n window.location = this.selectAllResultsLink();\n } else {\n window.location = this.selectOneLink(e.target.value);\n }\n }\n\n /**\n * The handler for when a user presses a key within the component.\n *\n * @param {KeyboardEvent} e The triggering event that we are working with.\n */\n keyHandler(e) {\n // Switch the key presses to handle keyboard nav.\n switch (e.key) {\n case 'ArrowUp':\n case 'ArrowDown':\n if (\n this.getSearchTerm() !== ''\n && !this.searchDropdown.classList.contains('show')\n && e.target.contains(this.combobox)\n ) {\n this.renderAndShow();\n }\n break;\n case 'Enter':\n case ' ':\n if (e.target.closest(this.selectors.resetPageButton)) {\n e.stopPropagation();\n window.location = e.target.closest(this.selectors.resetPageButton).href;\n break;\n }\n break;\n case 'Escape':\n this.toggleDropdown();\n this.searchInput.focus({preventScroll: true});\n break;\n }\n }\n\n /**\n * When called, hide or show the users dropdown.\n *\n * @param {Boolean} on Flag to toggle hiding or showing values.\n */\n toggleDropdown(on = false) {\n if (on) {\n this.searchDropdown.classList.add('show');\n $(this.searchDropdown).show();\n this.getHTMLElements().searchInput.setAttribute('aria-expanded', 'true');\n this.searchInput.focus({preventScroll: true});\n } else {\n this.searchDropdown.classList.remove('show');\n $(this.searchDropdown).hide();\n\n // As we are manually handling the dropdown, we need to do some housekeeping manually.\n this.getHTMLElements().searchInput.setAttribute('aria-expanded', 'false');\n this.searchInput.removeAttribute('aria-activedescendant');\n this.searchDropdown.querySelectorAll('.active[role=\"option\"]').forEach(option => {\n option.classList.remove('active');\n });\n }\n }\n\n /**\n * Build up the view all link.\n */\n selectAllResultsLink() {\n throw new Error(`selectAllResultsLink() must be implemented in ${this.constructor.name}`);\n }\n\n /**\n * Build up the view all link that is dedicated to a particular result.\n * We will call this function when a user interacts with the combobox to redirect them to show their results in the page.\n *\n * @param {Number} userID The ID of the user selected.\n */\n selectOneLink(userID) {\n throw new Error(`selectOneLink(${userID}) must be implemented in ${this.constructor.name}`);\n }\n\n /**\n * Given the set of profile fields we can possibly search, fetch their strings,\n * so we can report to screen readers the field that matched.\n *\n * @returns {Promise<void>}\n */\n getStringMap() {\n if (!this.profilestringmap) {\n const requiredStrings = [\n 'username',\n 'fullname',\n 'firstname',\n 'lastname',\n 'email',\n 'city',\n 'country',\n 'department',\n 'institution',\n 'idnumber',\n 'phone1',\n 'phone2',\n ];\n this.profilestringmap = getStrings(requiredStrings.map((key) => ({key})))\n .then((stringArray) => new Map(\n requiredStrings.map((key, index) => ([key, stringArray[index]]))\n ));\n }\n return this.profilestringmap;\n 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