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1 {"version":3,"file":"filter.min.js","sources":["../src/filter.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 * Question bank filter management.\n *\n * @module core_question/filter\n * @copyright 2021 Tomo Tsuyuki <tomotsuyuki@catalyst-au.net>\n * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later\n */\n\nimport CoreFilter from 'core/datafilter';\nimport Notification from 'core/notification';\nimport Selectors from 'core/datafilter/selectors';\nimport Templates from 'core/templates';\nimport Fragment from 'core/fragment';\n\n/**\n * Initialise the question bank filter on the element with the given id.\n *\n * @param {String} filterRegionId ID of the HTML element containing the filters.\n * @param {String} defaultcourseid Course ID for the default course to pass back to the view.\n * @param {String} defaultcategoryid Question bank category ID for the default course to pass back to the view.\n * @param {Number} perpage The number of questions to display per page.\n * @param {Number} contextId Context ID of the question bank view.\n * @param {string} component Frankenstyle name of the component for the fragment API callback (e.g. core_question)\n * @param {string} callback Name of the callback for the fragment API (e.g question_data)\n * @param {string} view The class name of the question bank view class used for this page.\n * @param {Number} cmid If we are in an activitiy, the course module ID.\n * @param {string} pagevars JSON-encoded parameters from passed from the view, including filters and jointype.\n * @param {string} extraparams JSON-encoded additional parameters specific to this view class, used for re-rendering the view.\n */\nexport const init = (\n filterRegionId,\n defaultcourseid,\n defaultcategoryid,\n perpage,\n contextId,\n component,\n callback,\n view,\n cmid,\n pagevars,\n extraparams\n) => {\n\n const SELECTORS = {\n QUESTION_CONTAINER_ID: '#questionscontainer',\n QUESTION_TABLE: '#questionscontainer table',\n SORT_LINK: '#questionscontainer div.sorters a',\n PAGINATION_LINK: '#questionscontainer a[href].page-link',\n LASTCHANGED_FIELD: '#questionsubmit input[name=lastchanged]',\n BULK_ACTIONS: '#bulkactionsui-container input',\n MENU_ACTIONS: '.menu-action',\n EDIT_SWITCH: '.editmode-switch-form input[name=setmode]',\n EDIT_SWITCH_URL: '.editmode-switch-form input[name=pageurl]',\n };\n\n const filterSet = document.querySelector(`#${filterRegionId}`);\n\n const viewData = {\n extraparams,\n cmid,\n view,\n cat: defaultcategoryid,\n courseid: defaultcourseid,\n filter: {},\n jointype: 0,\n qpage: 0,\n qperpage: perpage,\n sortdata: {},\n lastchanged: document.querySelector(SELECTORS.LASTCHANGED_FIELD)?.value ?? null,\n };\n\n let sortData = {};\n const defaultSort = document.querySelector(SELECTORS.QUESTION_TABLE)?.dataset?.defaultsort;\n if (defaultSort) {\n sortData = JSON.parse(defaultSort);\n }\n\n /**\n * Retrieve table data.\n *\n * @param {Object} filterdata data\n * @param {Promise} pendingPromise pending promise\n */\n const applyFilter = (filterdata, pendingPromise) => {\n // Reload the questions based on the specified filters. If no filters are provided,\n // use the default category filter condition.\n if (filterdata) {\n // Main join types.\n viewData.jointype = parseInt(filterSet.dataset.filterverb, 10);\n delete filterdata.jointype;\n // Retrieve filter info.\n viewData.filter = filterdata;\n if (Object.keys(filterdata).length !== 0) {\n if (!isNaN(viewData.jointype)) {\n filterdata.jointype = viewData.jointype;\n }\n updateUrlParams(filterdata);\n }\n }\n // Load questions for first page.\n viewData.filter = JSON.stringify(filterdata);\n viewData.sortdata = JSON.stringify(sortData);\n Fragment.loadFragment(component, callback, contextId, viewData)\n // Render questions for first page and pagination.\n .then((questionhtml, jsfooter) => {\n const questionscontainer = document.querySelector(SELECTORS.QUESTION_CONTAINER_ID);\n if (questionhtml === undefined) {\n questionhtml = '';\n }\n if (jsfooter === undefined) {\n jsfooter = '';\n }\n Templates.replaceNode(questionscontainer, questionhtml, jsfooter);\n // Resolve filter promise.\n if (pendingPromise) {\n pendingPromise.resolve();\n }\n return {questionhtml, jsfooter};\n })\n .catch(Notification.exception);\n };\n\n // Init core filter processor with apply callback.\n const coreFilter = new CoreFilter(filterSet, applyFilter);\n coreFilter.activeFilters = {}; // Unset useless courseid filter.\n coreFilter.init();\n\n /**\n * Update URL Param based upon the current filter.\n *\n * @param {Object} filters Active filters.\n */\n const updateUrlParams = (filters) => {\n const url = new URL(location.href);\n const filterQuery = JSON.stringify(filters);\n url.searchParams.set('filter', filterQuery);\n history.pushState(filters, '', url);\n const editSwitch = document.querySelector(SELECTORS.EDIT_SWITCH);\n if (editSwitch) {\n const editSwitchUrlInput = document.querySelector(SELECTORS.EDIT_SWITCH_URL);\n const editSwitchUrl = new URL(editSwitchUrlInput.value);\n editSwitchUrl.searchParams.set('filter', filterQuery);\n editSwitchUrlInput.value = editSwitchUrl;\n editSwitch.dataset.pageurl = editSwitchUrl;\n }\n };\n\n /**\n * Cleans URL parameters.\n */\n const cleanUrlParams = () => {\n const queryString = location.search;\n const urlParams = new URLSearchParams(queryString);\n if (urlParams.has('cmid')) {\n const cleanedUrl = new URL(location.href.replace(location.search, ''));\n cleanedUrl.searchParams.set('cmid', urlParams.get('cmid'));\n history.pushState({}, '', cleanedUrl);\n }\n\n if (urlParams.has('courseid')) {\n const cleanedUrl = new URL(location.href.replace(location.search, ''));\n cleanedUrl.searchParams.set('courseid', urlParams.get('courseid'));\n history.pushState({}, '', cleanedUrl);\n }\n };\n\n // Add listeners for the sorting, paging and clear actions.\n document.addEventListener('click', e => {\n const sortableLink = e.target.closest(SELECTORS.SORT_LINK);\n const paginationLink = e.target.closest(SELECTORS.PAGINATION_LINK);\n const clearLink = e.target.closest(Selectors.filterset.actions.resetFilters);\n if (sortableLink) {\n e.preventDefault();\n const oldSort = sortData;\n sortData = {};\n sortData[sortableLink.dataset.sortname] = sortableLink.dataset.sortorder;\n for (const sortname in oldSort) {\n if (sortname !== sortableLink.dataset.sortname) {\n sortData[sortname] = oldSort[sortname];\n }\n }\n viewData.qpage = 0;\n coreFilter.updateTableFromFilter();\n }\n if (paginationLink) {\n e.preventDefault();\n const paginationURL = new URL(paginationLink.getAttribute(\"href\"));\n const qpage = paginationURL.searchParams.get('qpage');\n if (paginationURL.search !== null) {\n viewData.qpage = qpage;\n coreFilter.updateTableFromFilter();\n }\n }\n if (clearLink) {\n cleanUrlParams();\n }\n });\n\n // Run apply filter at page load.\n pagevars = JSON.parse(pagevars);\n let initialFilters;\n let jointype = null;\n if (pagevars.filter) {\n // Load initial filter based on page vars.\n initialFilters = pagevars.filter;\n if (pagevars.jointype) {\n jointype = pagevars.jointype;\n }\n }\n\n if (Object.entries(initialFilters).length !== 0) {\n // Remove the default empty filter row.\n const emptyFilterRow = filterSet.querySelector(Selectors.filterset.regions.emptyFilterRow);\n if (emptyFilterRow) {\n emptyFilterRow.remove();\n }\n\n // Add filters.\n let rowcount = 0;\n for (const urlFilter in initialFilters) {\n if (urlFilter === 'jointype') {\n jointype = initialFilters[urlFilter];\n continue;\n }\n // Add each filter row.\n rowcount += 1;\n const filterdata = {\n filtertype: urlFilter,\n values: initialFilters[urlFilter].values,\n jointype: initialFilters[urlFilter].jointype,\n filteroptions: initialFilters[urlFilter].filteroptions,\n rownum: rowcount\n };\n coreFilter.addFilterRow(filterdata);\n }\n coreFilter.filterSet.dataset.filterverb = jointype;\n\n // Since we must filter by category, it does not make sense to allow the top-level \"match any\" or \"match none\" conditions,\n // as this would exclude the category. 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