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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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 * Javascript for handling actions on the admin page
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 *
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 * @module     qbank_columnsortorder/admin_actions
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 * @copyright  2023 onwards Catalyst IT Europe Ltd
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 * @author     Mark Johnson <mark.johnson@catalyst-eu.net>
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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 * as actions from 'qbank_columnsortorder/actions';
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import * as repository from 'qbank_columnsortorder/repository';
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import Notification from "core/notification";
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import Pending from 'core/pending';
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/**
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 * Event handler to save the custom column widths when a field is edited.
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 *
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 * @param {Element} listRoot The root element of the list of columns.
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 */
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const setupSaveWidths = listRoot => {
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    listRoot.addEventListener('change', async() => {
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        const pendingPromise = new Pending('saveWidths');
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        const columns = listRoot.querySelectorAll(actions.SELECTORS.sortableColumn);
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        const widths = [];
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        columns.forEach(column => {
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            const widthInput = column.querySelector('.width-input');
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            const valid = widthInput.checkValidity();
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            widthInput.closest('.has-validation').classList.add('was-validated');
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            if (!valid) {
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                return;
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            }
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            widths.push({
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                column: column.dataset.columnid,
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                width: widthInput.value,
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            });
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        });
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        await repository.setColumnSize(JSON.stringify(widths), true).catch(Notification.exception);
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        pendingPromise.resolve();
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    });
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};
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/**
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 * Initialize module
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 *
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 * Set up event handlers for the action buttons, width fields and initialise column sorting.
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 *
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 * @param {String} id ID for the admin UI root element.
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 */
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export const init = id => {
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    const uiRoot = document.getElementById(id);
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    const listRoot = uiRoot.querySelector(actions.SELECTORS.columnList);
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    actions.setupSortableLists(listRoot, true, true);
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    actions.setupActionButtons(uiRoot, true);
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    setupSaveWidths(listRoot);
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};