// 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/>.
/**
* @module core_group/index
* @copyright 2022 Matthew Hilton <matthewhilton@catalyst-au.net>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
import GroupPicker from "./grouppicker";
const groupPicker = new GroupPicker();
/**
* Initialise page.
*/
export const init = () => {
// Init event listeners.
groupPicker.getDomElement().addEventListener("change", updateBulkActionButtons);
// Call initially to set initial button state.
updateBulkActionButtons();
};
/**
* Updates the bulk action buttons depending on specific conditions.
*/
export const updateBulkActionButtons = () => {
const groupsSelected = groupPicker.getSelectedValues();
const aGroupIsSelected = groupsSelected.length !== 0;
// Collate the conditions where each button is enabled/disabled.
const bulkActionsEnabledStatuses = {
'enablemessaging': aGroupIsSelected,
'disablemessaging': aGroupIsSelected
};
// Update the status of each button.
Object.entries(bulkActionsEnabledStatuses).map(([buttonId, enabled]) => setElementEnabled(buttonId, enabled));
};
/**
* Adds or removes the given element's disabled attribute.
* @param {string} domElementId ID of the dom element (without the #)
* @param {bool} enabled If false, the disable attribute is applied, else it is removed.
*/
export const setElementEnabled = (domElementId, enabled) => {
const element = document.getElementById(domElementId);
if (!element) {
// If there is no element, we do nothing.
// The element could be purposefully hidden or removed.
return;
}
if (!enabled) {
element.setAttribute('disabled', 'disabled');
} else {
element.removeAttribute('disabled');
}
};