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// This file is part of Moodle - http://moodle.org/ // // Moodle is free software: you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // // Moodle is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // // You should have received a copy of the GNU General Public License // along with Moodle. If not, see <http://www.gnu.org/licenses/>. /** * Sticky footer wrapper module. * * Themes are responsible for implementing the sticky footer. However, * modules can interact with the sticky footer using this module. * * @module core/sticky-footer * @copyright 2023 Ferran Recio <ferran@moodle.com> * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later / import {dispatchEvent} from 'core/event_dispatcher'; let manager = {}; let enabled = false; let initialized = false; export const SELECTORS = { STICKYFOOTER: '.stickyfooter', }; const CLASSES = { INVISIBLE: 'v-hidden', }; export const eventTypes = { stickyFooterStateChanged: 'core/stickyfooter_state_changed', }; /* * Enable sticky footer in the page. / export const enableStickyFooter = () => { enabled = true; if (manager.enableStickyFooter === undefined) { document.querySelector(SELECTORS.STICKYFOOTER)?.classList.remove(CLASSES.INVISIBLE); return; } manager.enableStickyFooter(); notifyStickyFooterStateChange(true); }; /* * Disable sticky footer in the page. / export const disableStickyFooter = () => { enabled = false; if (manager.disableStickyFooter === undefined) { document.querySelector(SELECTORS.STICKYFOOTER)?.classList.add(CLASSES.INVISIBLE); return; } manager.disableStickyFooter(); notifyStickyFooterStateChange(false); }; /* * Register the theme sticky footer methods. * * @param {Object} themeManager the manager object with all the needed methods. * @param {Function} themeManager.enableStickyFooter enable sticky footer method * @param {Function} themeManager.disableStickyFooter disable sticky footer method / export const registerManager = (themeManager) => { manager = themeManager; if (enabled) { enableStickyFooter(); } }; /* * Initialize the module if the theme does not implement its own init. / export const init = () => { if (initialized) { return; } initialized = true; const isDisabled = document.querySelector(SELECTORS.STICKYFOOTER)?.dataset.disable; if (isDisabled) { disableStickyFooter(); } else { enableStickyFooter(); } }; /* * Dispatch an event to notify that the state (enabled/disabled) of the sticky footer has changed. * * @param {boolean} enabled Whether the sticky footer has been enabled or disabled. */ const notifyStickyFooterStateChange = (enabled) => { dispatchEvent(eventTypes.stickyFooterStateChanged, {enabled: enabled}, document, {cancelable: false}); };

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