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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/>. /** * A javascript module that handles the change of the user's visibility in the * online users block. * * @module block_online_users/change_user_visibility * @copyright 2018 Mihail Geshoski <mihail@moodle.com> * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later / import {getString} from 'core/str'; import Notification from 'core/notification'; import {setUserPreference} from 'core_user/repository'; /* * Selectors. * * @access private * @type {Object} / const SELECTORS = { CHANGE_VISIBILITY_LINK: '#change-user-visibility', CHANGE_VISIBILITY_ICON: '#change-user-visibility .icon', }; /* * Change user visibility in the online users block. * * @method changeVisibility * @param {String} action * @param {String} userid * @returns {Promise} * @private / const changeVisibility = (action, userid) => setUserPreference( 'block_online_users_uservisibility', action == "show" ? 1 : 0, userid, ) .then((data) => { if (data.saved) { const newAction = oppositeAction(action); changeVisibilityLinkAttr(newAction); changeVisibilityIconAttr(newAction); } return data; }).catch(Notification.exception); /* * Get the opposite action. * * @method oppositeAction * @param {String} action * @return {String} * @private / const oppositeAction = (action) => action == 'show' ? 'hide' : 'show'; /* * Change the attribute values of the user visibility link in the online users block. * * @method changeVisibilityLinkAttr * @param {String} action * @returns {Promise} * @private / const changeVisibilityLinkAttr = (action) => getTitle(action) .then((title) => { const link = document.querySelector(SELECTORS.CHANGE_VISIBILITY_LINK); link.dataset.action = action; link.title = title; return link; }); /* * Change the attribute values of the user visibility icon in the online users block. * * @method changeVisibilityIconAttr * @param {String} action * @returns {Promise} * @private / const changeVisibilityIconAttr = (action) => getTitle(action) .then((title) => { const icon = document.querySelector(SELECTORS.CHANGE_VISIBILITY_ICON); // Add the proper title to the icon. icon.setAttribute('title', title); icon.setAttribute('aria-label', title); if (icon.closest("img")) { // If the icon is an image. icon.setAttribute('src', M.util.image_url(`t/${action}`)); icon.setAttribute('alt', title); } else { // Add the new icon class and remove the old one. icon.classList.add(getIconClass(action)); icon.classList.remove(getIconClass(oppositeAction(action))); } return title; }); /* * Get the proper class for the user visibility icon in the online users block. * * @method getIconClass * @param {String} action * @return {String} * @private / const getIconClass = (action) => (action == 'show') ? 'fa-eye-slash' : 'fa-eye'; /* * Get the title description of the user visibility link in the online users block. * * @method getTitle * @param {String} action * @return {object} jQuery promise * @private / const getTitle = (action) => getString(`online_status:${action}`, 'block_online_users'); /* * Initialise change user visibility function. * * @method init */ export const init = () => { document.addEventListener('click', (e) => { const link = e.target.closest(SELECTORS.CHANGE_VISIBILITY_LINK); if (!link) { return; } e.preventDefault(); changeVisibility( link.dataset.action, link.dataset.userid, ); }); };

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