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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* Controls for the course index drawer, such as expand-all/collapse-all sections.
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*
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* @module theme_universe/courseindexdrawercontrols
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* @copyright 2023 Stefan Topfstedt
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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import {BaseComponent} from 'core/reactive';
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import {getCurrentCourseEditor} from 'core_courseformat/courseeditor';
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export default class Component extends BaseComponent {
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create() {
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this.name = 'courseindexdrawercontrols';
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this.selectors = {
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COLLAPSEALL: `[data-action="collapseallcourseindexsections"]`,
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EXPANDALL: `[data-action="expandallcourseindexsections"]`,
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};
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}
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/**
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* @param {element|string} target the DOM main element or its ID
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* @param {object} selectors optional css selector overrides
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* @return {Component}
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*/
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static init(target, selectors) {
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return new Component({
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element: document.getElementById(target),
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reactive: getCurrentCourseEditor(),
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selectors,
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});
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}
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/**
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* Initial state ready method.
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*/
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stateReady() {
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// Attach the on-click event handlers to the expand-all and collapse-all buttons, if present.
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const expandAllBtn = this.getElement(this.selectors.EXPANDALL);
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if (expandAllBtn) {
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this.addEventListener(expandAllBtn, 'click', this._expandAllSections);
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}
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const collapseAllBtn = this.getElement(this.selectors.COLLAPSEALL);
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if (collapseAllBtn) {
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this.addEventListener(collapseAllBtn, 'click', this._collapseAllSections);
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}
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}
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/**
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* On-click event handler for the collapse-all button.
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* @private
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*/
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_collapseAllSections() {
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this._toggleAllSections(true);
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}
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/**
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* On-click event handler for the expand-all button.
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* @private
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*/
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_expandAllSections() {
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this._toggleAllSections(false);
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}
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/**
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* Collapses or expands all sections in the course index.
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* @param {boolean} expandOrCollapse set to TRUE to collapse all, and FALSE to expand all.
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* @private
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*/
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_toggleAllSections(expandOrCollapse) {
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this.reactive.dispatch('allSectionsIndexCollapsed', expandOrCollapse);
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}
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}
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