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{"version":3,"file":"courseindex.min.js","sources":["../../../src/local/courseindex/courseindex.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 * Course index main component.\n *\n * @module core_courseformat/local/courseindex/courseindex\n * @class core_courseformat/local/courseindex/courseindex\n * @copyright 2021 Ferran Recio <ferran@moodle.com>\n * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later\n */\n\nimport {BaseComponent} from 'core/reactive';\nimport {getCurrentCourseEditor} from 'core_courseformat/courseeditor';\nimport jQuery from 'jquery';\nimport ContentTree from 'core_courseformat/local/courseeditor/contenttree';\n\nexport default class Component extends BaseComponent {\n\n /**\n * Constructor hook.\n */\n create() {\n // Optional component name for debugging.\n this.name = 'courseindex';\n // Default query selectors.\n this.selectors = {\n SECTION: `[data-for='section']`,\n SECTION_CMLIST: `[data-for='cmlist']`,\n CM: `[data-for='cm']`,\n TOGGLER: `[data-action=\"togglecourseindexsection\"]`,\n COLLAPSE: `[data-toggle=\"collapse\"]`,\n DRAWER: `.drawer`,\n };\n // Default classes to toggle on refresh.\n this.classes = {\n SECTIONHIDDEN: 'dimmed',\n CMHIDDEN: 'dimmed',\n SECTIONCURRENT: 'current',\n COLLAPSED: `collapsed`,\n SHOW: `show`,\n };\n // Arrays to keep cms and sections elements.\n this.sections = {};\n this.cms = {};\n }\n\n /**\n * Static method to create a component instance form the mustache template.\n *\n * @param {element|string} target the DOM main element or its ID\n * @param {object} selectors optional css selector overrides\n * @return {Component}\n */\n static init(target, selectors) {\n return new this({\n element: document.getElementById(target),\n reactive: getCurrentCourseEditor(),\n selectors,\n });\n }\n\n /**\n * Initial state ready method.\n *\n * @param {Object} state the state data\n */\n stateReady(state) {\n // Activate section togglers.\n this.addEventListener(this.element, 'click', this._sectionTogglers);\n\n // Get cms and sections elements.\n const sections = this.getElements(this.selectors.SECTION);\n sections.forEach((section) => {\n this.sections[section.dataset.id] = section;\n });\n const cms = this.getElements(this.selectors.CM);\n cms.forEach((cm) => {\n this.cms[cm.dataset.id] = cm;\n });\n\n this._expandPageCmSectionIfNecessary(state);\n this._refreshPageItem({element: state.course, state});\n\n // Configure Aria Tree.\n this.contentTree = new ContentTree(this.element, this.selectors, this.reactive.isEditing);\n }\n\n getWatchers() {\n return [\n {watch: `section.indexcollapsed:updated`, handler: this._refreshSectionCollapsed},\n {watch: `cm:created`, handler: this._createCm},\n {watch: `cm:deleted`, handler: this._deleteCm},\n {watch: `section:created`, handler: this._createSection},\n {watch: `section:deleted`, handler: this._deleteSection},\n {watch: `course.pageItem:created`, handler: this._refreshPageItem},\n {watch: `course.pageItem:updated`, handler: this._refreshPageItem},\n // Sections and cm sorting.\n {watch: `course.sectionlist:updated`, handler: this._refreshCourseSectionlist},\n {watch: `section.cmlist:updated`, handler: this._refreshSectionCmlist},\n ];\n }\n\n /**\n * Setup sections toggler.\n *\n * Toggler click is delegated to the main course index element because new sections can\n * appear at any moment and this way we prevent accidental double bindings.\n *\n * @param {Event} event the triggered event\n */\n _sectionTogglers(event) {\n const sectionlink = event.target.closest(this.selectors.TOGGLER);\n const isChevron = event.target.closest(this.selectors.COLLAPSE);\n\n if (sectionlink || isChevron) {\n\n const section = event.target.closest(this.selectors.SECTION);\n const toggler = section.querySelector(this.selectors.COLLAPSE);\n const isCollapsed = toggler?.classList.contains(this.classes.COLLAPSED) ?? false;\n\n // Update the state.\n const sectionId = section.getAttribute('data-id');\n if (!sectionlink || isCollapsed) {\n this.reactive.dispatch(\n 'sectionIndexCollapsed',\n [sectionId],\n !isCollapsed\n );\n }\n }\n }\n\n /**\n * Update section collapsed.\n *\n * @param {object} args\n * @param {object} args.element The leement to be expanded\n */\n _refreshSectionCollapsed({element}) {\n const target = this.getElement(this.selectors.SECTION, element.id);\n if (!target) {\n throw new Error(`Unkown section with ID ${element.id}`);\n }\n // Check if it is already done.\n const toggler = target.querySelector(this.selectors.COLLAPSE);\n const isCollapsed = toggler?.classList.contains(this.classes.COLLAPSED) ?? false;\n\n if (element.indexcollapsed !== isCollapsed) {\n this._expandSectionNode(element);\n }\n }\n\n /**\n * Expand a section node.\n *\n * By default the method will use element.indexcollapsed to decide if the\n * section is opened or closed. However, using forceValue it is possible\n * to open or close a section independant from the indexcollapsed attribute.\n *\n * @param {Object} element the course module state element\n * @param {boolean} forceValue optional forced expanded value\n */\n _expandSectionNode(element, forceValue) {\n const target = this.getElement(this.selectors.SECTION, element.id);\n const toggler = target.querySelector(this.selectors.COLLAPSE);\n let collapsibleId = toggler.dataset.target ?? toggler.getAttribute(\"href\");\n if (!collapsibleId) {\n return;\n }\n collapsibleId = collapsibleId.replace('#', '');\n const collapsible = document.getElementById(collapsibleId);\n if (!collapsible) {\n return;\n }\n\n if (forceValue === undefined) {\n forceValue = (element.indexcollapsed) ? false : true;\n }\n\n // Course index is based on Bootstrap 4 collapsibles. To collapse them we need jQuery to\n // interact with collapsibles methods. Hopefully, this will change in Bootstrap 5 because\n // it does not require jQuery anymore (when MDL-71979 is integrated).\n const togglerValue = (forceValue) ? 'show' : 'hide';\n jQuery(collapsible).collapse(togglerValue);\n }\n\n /**\n * Handle a page item update.\n *\n * @param {Object} details the update details\n * @param {Object} details.state the state data.\n * @param {Object} details.element the course state data.\n */\n _refreshPageItem({element, state}) {\n if (!element?.pageItem?.isStatic || element.pageItem.type != 'cm') {\n return;\n }\n // Check ifwe need to uncollapse the section and scroll to the element.\n const section = state.section.get(element.pageItem.sectionId);\n if (section.indexcollapsed) {\n this._expandSectionNode(section, true);\n setTimeout(\n () => this.cms[element.pageItem.id]?.scrollIntoView({block: \"nearest\"}),\n 250\n );\n }\n }\n\n /**\n * Expand a section if the current page is a section's cm.\n *\n * @private\n * @param {Object} state the course state.\n */\n _expandPageCmSectionIfNecessary(state) {\n const pageCmInfo = this.reactive.getPageAnchorCmInfo();\n if (!pageCmInfo) {\n return;\n }\n this._expandSectionNode(state.section.get(pageCmInfo.sectionid), true);\n }\n\n /**\n * Create a newcm instance.\n *\n * @param {object} param\n * @param {Object} param.state\n * @param {Object} param.element\n */\n async _createCm({state, element}) {\n// Create a fake node while the component is loading.\n const fakeelement = document.createElement('li');\n fakeelement.classList.add('bg-pulse-grey', 'w-100');\n fakeelement.innerHTML = ' ';\n this.cms[element.id] = fakeelement;\n // Place the fake node on the correct position.\n this._refreshSectionCmlist({\n state,\n element: state.section.get(element.sectionid),\n });\n // Collect render data.\n const exporter = this.reactive.getExporter();\n const data = exporter.cm(state, element);\n // Create the new content.\n const newcomponent = await this.renderComponent(fakeelement, 'core_courseformat/local/courseindex/cm', data);\n // Replace the fake node with the real content.\n const newelement = newcomponent.getElement();\n this.cms[element.id] = newelement;\n fakeelement.parentNode.replaceChild(newelement, fakeelement);\n }\n\n /**\n * Create a new sectioninstance.\n *\n * @param {Object} details the update details.\n * @param {Object} details.state the state data.\n * @param {Object} details.element the element data.\n */\n async _createSection({state, element}) {\n // Create a fake node while the component is loading.\n const fakeelement = document.createElement('div');\n fakeelement.classList.add('bg-pulse-grey', 'w-100');\n fakeelement.innerHTML = ' ';\n this.sections[element.id] = fakeelement;\n // Place the fake node on the correct position.\n this._refreshCourseSectionlist({\n state,\n element: state.course,\n });\n // Collect render data.\n const exporter = this.reactive.getExporter();\n const data = exporter.section(state, element);\n // Create the new content.\n const newcomponent = await this.renderComponent(fakeelement, 'core_courseformat/local/courseindex/section', data);\n // Replace the fake node with the real content.\n const newelement = newcomponent.getElement();\n this.sections[element.id] = newelement;\n fakeelement.parentNode.replaceChild(newelement, fakeelement);\n }\n\n /**\n * Refresh a section cm list.\n *\n * @param {object} param\n * @param {Object} param.element\n */\n _refreshSectionCmlist({element}) {\n const cmlist = element.cmlist ?? [];\n const listparent = this.getElement(this.selectors.SECTION_CMLIST, element.id);\n this._fixOrder(listparent, cmlist, this.cms);\n }\n\n /**\n * Refresh the section list.\n *\n * @param {object} param\n * @param {Object} param.state\n */\n _refreshCourseSectionlist({state}) {\n const sectionlist = this.reactive.getExporter().listedSectionIds(state);\n this._fixOrder(this.element, sectionlist, this.sections);\n }\n\n /**\n * Fix/reorder the section or cms order.\n *\n * @param {Element} container the HTML element to reorder.\n * @param {Array} neworder an array with the ids order\n * @param {Array} allitems the list of html elements that can be placed in the container\n */\n _fixOrder(container, neworder, allitems) {\n\n // Empty lists should not be visible.\n if (!neworder.length) {\n container.classList.add('hidden');\n container.innerHTML = '';\n return;\n }\n\n // Grant the list is visible (in case it was empty).\n container.classList.remove('hidden');\n\n // Move the elements 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