Proyectos de Subversion Moodle

// 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/>.

/**

 * Report builder columns editor

 *

 * @module      core_reportbuilder/local/editor/columns

 * @copyright   2021 Paul Holden <paulh@moodle.com>

 * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later

 */

"use strict";

import $ from 'jquery';

import {dispatchEvent} from 'core/event_dispatcher';

import 'core/inplace_editable';

import {eventTypes as inplaceEditableEvents} from 'core/local/inplace_editable/events';

import Notification from 'core/notification';

import Pending from 'core/pending';

import {prefetchStrings} from 'core/prefetch';

import {publish} from 'core/pubsub';

import SortableList from 'core/sortable_list';

import {getString} from 'core/str';

import {add as addToast} from 'core/toast';

import * as reportEvents from 'core_reportbuilder/local/events';

import * as reportSelectors from 'core_reportbuilder/local/selectors';

import {addColumn, deleteColumn, reorderColumn} from 'core_reportbuilder/local/repository/columns';

import {getColumnSorting} from 'core_reportbuilder/local/repository/sorting';

/**

 * Initialise module, prefetch all required strings

 *

 * @param {Boolean} initialized Ensure we only add our listeners once

 */

export const init = initialized => {

    prefetchStrings('core_reportbuilder', [

        'columnadded',

        'columnaggregated',

        'columndeleted',

        'columnmoved',

        'deletecolumn',

        'deletecolumnconfirm',

    ]);

    prefetchStrings('core', [

        'delete',

    ]);

    if (initialized) {

        return;

    }

    document.addEventListener('click', event => {

        // Add column to report.

        const reportAddColumn = event.target.closest(reportSelectors.actions.reportAddColumn);

        if (reportAddColumn) {

            event.preventDefault();

            const pendingPromise = new Pending('core_reportbuilder/columns:add');

            const reportElement = reportAddColumn.closest(reportSelectors.regions.report);

            addColumn(reportElement.dataset.reportId, reportAddColumn.dataset.uniqueIdentifier)

                .then(data => publish(reportEvents.publish.reportColumnsUpdated, data))

                .then(() => getString('columnadded', 'core_reportbuilder', reportAddColumn.dataset.name))

                .then(addToast)

                .then(() => {

                    dispatchEvent(reportEvents.tableReload, {preservePagination: true}, reportElement);

                    return pendingPromise.resolve();

                })

                .catch(Notification.exception);

        }

        // Remove column from report.

        const reportRemoveColumn = event.target.closest(reportSelectors.actions.reportRemoveColumn);

        if (reportRemoveColumn) {

            event.preventDefault();

            const reportElement = reportRemoveColumn.closest(reportSelectors.regions.report);

            const columnHeader = reportRemoveColumn.closest(reportSelectors.regions.columnHeader);

            const columnName = columnHeader.dataset.columnName;

            Notification.saveCancelPromise(

                getString('deletecolumn', 'core_reportbuilder', columnName),

                getString('deletecolumnconfirm', 'core_reportbuilder', columnName),

                getString('delete', 'core'),

                {triggerElement: reportRemoveColumn}

            ).then(() => {

                const pendingPromise = new Pending('core_reportbuilder/columns:remove');

                return deleteColumn(reportElement.dataset.reportId, columnHeader.dataset.columnId)

                    .then(data => publish(reportEvents.publish.reportColumnsUpdated, data))

                    .then(() => addToast(getString('columndeleted', 'core_reportbuilder', columnName)))

                    .then(() => {

                        dispatchEvent(reportEvents.tableReload, {preservePagination: true}, reportElement);

                        return pendingPromise.resolve();

                    })

                    .catch(Notification.exception);

            }).catch(() => {

                return;

            });

        }

    });

    // Initialize sortable list to handle column moving (note JQuery dependency, see MDL-72293 for resolution).

    var columnSortableList = new SortableList(`${reportSelectors.regions.reportTable} thead tr`, {isHorizontal: true});

    columnSortableList.getElementName = element => Promise.resolve(element.data('columnName'));

    $(document).on(SortableList.EVENTS.DRAG, `${reportSelectors.regions.report} th[data-column-id]`, (event, info) => {

        const reportElement = event.target.closest(reportSelectors.regions.report);

        const columnPosition = info.element.data('columnPosition');

        const targetColumnPosition = info.targetNextElement.data('columnPosition');

        $(reportElement).find('tbody tr').each(function() {

            const cell = $(this).children(`td.c${columnPosition - 1}`)[0];

            if (targetColumnPosition) {

                var beforeCell = $(this).children(`td.c${targetColumnPosition - 1}`)[0];

                this.insertBefore(cell, beforeCell);

            } else {

                this.appendChild(cell);

            }

        });

    });

    $(document).on(SortableList.EVENTS.DROP, `${reportSelectors.regions.report} th[data-column-id]`, (event, info) => {

        if (info.positionChanged) {

            const pendingPromise = new Pending('core_reportbuilder/columns:reorder');

            const reportElement = event.target.closest(reportSelectors.regions.report);

            const columnId = info.element.data('columnId');

            const columnName = info.element.data('columnName');

            const columnPosition = info.element.data('columnPosition');

            // Select target position, if moving to the end then count number of element siblings.

            let targetColumnPosition = info.targetNextElement.data('columnPosition') || info.element.siblings().length + 2;

            if (targetColumnPosition > columnPosition) {

                targetColumnPosition--;

            }

            // Re-order column, giving drop event transition time to finish.

            const reorderPromise = reorderColumn(reportElement.dataset.reportId, columnId, targetColumnPosition);

            Promise.all([reorderPromise, new Promise(resolve => setTimeout(resolve, 1000))])

                .then(() => getString('columnmoved', 'core_reportbuilder', columnName))

                .then(addToast)

                .then(() => {

                    dispatchEvent(reportEvents.tableReload, {preservePagination: true}, reportElement);

                    return pendingPromise.resolve();

                })

                .catch(Notification.exception);

        }

    });

    // Initialize inplace editable listeners for column aggregation.

    document.addEventListener(inplaceEditableEvents.elementUpdated, event => {

        const columnAggregation = event.target.closest('[data-itemtype="columnaggregation"]');

        if (columnAggregation) {

            const pendingPromise = new Pending('core_reportbuilder/columns:aggregate');

            const reportElement = columnAggregation.closest(reportSelectors.regions.report);

            const columnHeader = columnAggregation.closest(reportSelectors.regions.columnHeader);

            getString('columnaggregated', 'core_reportbuilder', columnHeader.dataset.columnName)

                .then(addToast)

                .then(() => {

                    // Pass preserveTriggerElement parameter so columnAggregationLink will be focused after the report reload.

                    const columnAggregationLink = `[data-itemtype="columnaggregation"][data-itemid="`

                        + `${columnAggregation.dataset.itemid}"] > a`;

                    // Now reload the table, and notify listeners that columns have been updated.

                    dispatchEvent(reportEvents.tableReload, {preserveTriggerElement: columnAggregationLink}, reportElement);

                    return getColumnSorting(reportElement.dataset.reportId);

                })

                .then(data => publish(reportEvents.publish.reportColumnsUpdated, data))

                .then(() => pendingPromise.resolve())

                .catch(Notification.exception);

        }

    });

};