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 filters editor

 *

 * @module      core_reportbuilder/local/editor/filters

 * @copyright   2021 David Matamoros <davidmc@moodle.com>

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

 */

"use strict";

import AutoComplete from 'core/form-autocomplete';

import 'core/inplace_editable';

import Notification from 'core/notification';

import Pending from 'core/pending';

import {prefetchStrings} from 'core/prefetch';

import SortableList from 'core/sortable_list';

import {getString} from 'core/str';

import Templates from 'core/templates';

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

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

import {addFilter, deleteFilter, reorderFilter} from 'core_reportbuilder/local/repository/filters';

/**

 * Reload filters settings region

 *

 * @param {Element} reportElement

 * @param {Object} templateContext

 * @return {Promise}

 */

const reloadSettingsFiltersRegion = (reportElement, templateContext) => {

    const pendingPromise = new Pending('core_reportbuilder/filters:reload');

    const settingsFiltersRegion = reportElement.querySelector(reportSelectors.regions.settingsFilters);

    return Templates.renderForPromise('core_reportbuilder/local/settings/filters', {filters: templateContext})

        .then(({html, js}) => {

            Templates.replaceNode(settingsFiltersRegion, html, js);

            initFiltersForm();

            // Re-focus the add filter element after reloading the region.

            const reportAddFilter = reportElement.querySelector(reportSelectors.actions.reportAddFilter);

            reportAddFilter?.focus();

            return pendingPromise.resolve();

        });

};

/**

 * Initialise filters form, must be called on each init because the form container is re-created when switching editor modes

 */

const initFiltersForm = () => {

    const reportElement = document.querySelector(reportSelectors.regions.report);

    // Enhance filter selector.

    const reportAddFilter = reportElement.querySelector(reportSelectors.actions.reportAddFilter);

    AutoComplete.enhanceField(reportAddFilter, false, '', getString('selectafilter', 'core_reportbuilder'))

        .catch(Notification.exception);

};

/**

 * Initialise module, prefetch all required strings

 *

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

 */

export const init = initialized => {

    prefetchStrings('core_reportbuilder', [

        'deletefilter',

        'deletefilterconfirm',

        'filteradded',

        'filterdeleted',

        'filtermoved',

        'selectafilter',

    ]);

    prefetchStrings('core', [

        'delete',

    ]);

    initFiltersForm();

    if (initialized) {

        return;

    }

    // Add filter to report.

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

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

        if (reportAddFilter) {

            event.preventDefault();

            // Check if dropdown is closed with no filter selected.

            if (reportAddFilter.value === "" || reportAddFilter.value === "0") {

                return;

            }

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

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

            addFilter(reportElement.dataset.reportId, reportAddFilter.value)

                .then(data => reloadSettingsFiltersRegion(reportElement, data))

                .then(() => getString('filteradded', 'core_reportbuilder',

                    reportAddFilter.options[reportAddFilter.selectedIndex].text))

                .then(addToast)

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

                .catch(Notification.exception);

        }

    });

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

        // Remove filter from report.

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

        if (reportRemoveFilter) {

            event.preventDefault();

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

            const filterContainer = reportRemoveFilter.closest(reportSelectors.regions.activeFilter);

            const filterName = filterContainer.dataset.filterName;

            Notification.saveCancelPromise(

                getString('deletefilter', 'core_reportbuilder', filterName),

                getString('deletefilterconfirm', 'core_reportbuilder', filterName),

                getString('delete', 'core'),

                {triggerElement: reportRemoveFilter}

            ).then(() => {

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

                return deleteFilter(reportElement.dataset.reportId, filterContainer.dataset.filterId)

                    .then(data => reloadSettingsFiltersRegion(reportElement, data))

                    .then(() => addToast(getString('filterdeleted', 'core_reportbuilder', filterName)))

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

                    .catch(Notification.exception);

            }).catch(() => {

                return;

            });

        }

    });

    // Initialize sortable list to handle active filters moving.

    const activeFiltersSelector = `${reportSelectors.regions.activeFilters} ul`;

    const activeFiltersSortableList = new SortableList(activeFiltersSelector, {isHorizontal: false});

    activeFiltersSortableList.getElementName = element => Promise.resolve(element.data('filterName'));

    document.addEventListener(SortableList.EVENTS.elementDrop, event => {

        const reportOrderFilter = event.target.closest(`${activeFiltersSelector} ${reportSelectors.regions.activeFilter}`);

        if (reportOrderFilter && event.detail.positionChanged) {

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

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

            const {filterId, filterPosition, filterName} = reportOrderFilter.dataset;

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

            let targetFilterPosition = event.detail.targetNextElement.data('filterPosition')

                || event.detail.element.siblings().length + 2;

            if (targetFilterPosition > filterPosition) {

                targetFilterPosition--;

            }

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

            const reorderPromise = reorderFilter(reportElement.dataset.reportId, filterId, targetFilterPosition);

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

                .then(([data]) => reloadSettingsFiltersRegion(reportElement, data))

                .then(() => getString('filtermoved', 'core_reportbuilder', filterName))

                .then(addToast)

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

                .catch(Notification.exception);

        }

    });

};