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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/>.
/**
* AMD module for the user enrolment status field in the course participants page.
*
* @module core_user/status_field
* @copyright 2017 Jun Pataleta
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
import * as DynamicTable from 'core_table/dynamic';
import * as Repository from './repository';
import * as Str from 'core/str';
import DynamicTableSelectors from 'core_table/local/dynamic/selectors';
import Fragment from 'core/fragment';
import ModalEvents from 'core/modal_events';
import ModalFactory from 'core/modal_factory';
import Notification from 'core/notification';
import Templates from 'core/templates';
import {add as notifyUser} from 'core/toast';
const Selectors = {
editEnrolment: '[data-action="editenrolment"]',
showDetails: '[data-action="showdetails"]',
unenrol: '[data-action="unenrol"]',
statusElement: '[data-status]',
};
/**
* Get the dynamic table from the specified link.
*
* @param {HTMLElement} link
* @returns {HTMLElement}
*/
const getDynamicTableFromLink = link => link.closest(DynamicTableSelectors.main.region);
/**
* Get the status container from the specified link.
*
* @param {HTMLElement} link
* @returns {HTMLElement}
*/
const getStatusContainer = link => link.closest(Selectors.statusElement);
/**
* Get user enrolment id from the specified link
*
* @param {HTMLElement} link
* @returns {Number}
*/
const getUserEnrolmentIdFromLink = link => link.getAttribute('rel');
/**
* Register all event listeners for the status fields.
*
* @param {Number} contextId
* @param {Number} uniqueId
*/
const registerEventListeners = (contextId, uniqueId) => {
const getBodyFunction = (userEnrolmentId, formData) => getBody(contextId, userEnrolmentId, formData);
document.addEventListener('click', e => {
const tableRoot = e.target.closest(DynamicTableSelectors.main.fromRegionId(uniqueId));
if (!tableRoot) {
return;
}
const editLink = e.target.closest(Selectors.editEnrolment);
if (editLink) {
e.preventDefault();
showEditDialogue(editLink, getBodyFunction);
}
const unenrolLink = e.target.closest(Selectors.unenrol);
if (unenrolLink) {
e.preventDefault();
showUnenrolConfirmation(unenrolLink);
}
const showDetailsLink = e.target.closest(Selectors.showDetails);
if (showDetailsLink) {
e.preventDefault();
showStatusDetails(showDetailsLink);
}
});
};
/**
* Show the edit dialogue.
*
* @param {HTMLElement} link
* @param {Function} getBody Function to get the body for the specified user enrolment
*/
const showEditDialogue = (link, getBody) => {
const container = getStatusContainer(link);
const userEnrolmentId = getUserEnrolmentIdFromLink(link);
ModalFactory.create({
large: true,
title: Str.get_string('edituserenrolment', 'enrol', container.dataset.fullname),
type: ModalFactory.types.SAVE_CANCEL,
body: getBody(userEnrolmentId)
})
.then(modal => {
// Handle save event.
modal.getRoot().on(ModalEvents.save, e => {
// Don't close the modal yet.
e.preventDefault();
// Submit form data.
submitEditFormAjax(link, getBody, modal, userEnrolmentId, container.dataset);
});
// Handle hidden event.
modal.getRoot().on(ModalEvents.hidden, () => {
// Destroy when hidden.
modal.destroy();
});
// Show the modal.
modal.show();
return modal;
})
.catch(Notification.exception);
};
/**
* Show and handle the unenrolment confirmation dialogue.
*
* @param {HTMLElement} link
*/
const showUnenrolConfirmation = link => {
const container = getStatusContainer(link);
const userEnrolmentId = getUserEnrolmentIdFromLink(link);
ModalFactory.create({
type: ModalFactory.types.SAVE_CANCEL,
})
.then(modal => {
// Handle confirm event.
modal.getRoot().on(ModalEvents.save, e => {
// Don't close the modal yet.
e.preventDefault();
// Submit data.
submitUnenrolFormAjax(
link,
modal,
{
ueid: userEnrolmentId,
},
container.dataset
);
});
// Handle hidden event.
modal.getRoot().on(ModalEvents.hidden, () => {
// Destroy when hidden.
modal.destroy();
});
// Display the delete confirmation modal.
modal.show();
const stringData = [
{
key: 'unenrol',
component: 'enrol',
},
{
key: 'unenrolconfirm',
component: 'enrol',
param: {
user: container.dataset.fullname,
course: container.dataset.coursename,
enrolinstancename: container.dataset.enrolinstancename,
}
}
];
return Promise.all([Str.get_strings(stringData), modal]);
})
.then(([strings, modal]) => {
modal.setTitle(strings[0]);
modal.setSaveButtonText(strings[0]);
modal.setBody(strings[1]);
return modal;
})
.catch(Notification.exception);
};
/**
* Show the user details dialogue.
*
* @param {HTMLElement} link
*/
const showStatusDetails = link => {
const container = getStatusContainer(link);
const context = {
editenrollink: '',
statusclass: container.querySelector('span.badge').getAttribute('class'),
...container.dataset,
};
// Find the edit enrolment link.
const editEnrolLink = container.querySelector(Selectors.editEnrolment);
if (editEnrolLink) {
// If there's an edit enrolment link for this user, clone it into the context for the modal.
context.editenrollink = editEnrolLink.outerHTML;
}
ModalFactory.create({
large: true,
type: ModalFactory.types.CANCEL,
title: Str.get_string('enroldetails', 'enrol'),
body: Templates.render('core_user/status_details', context),
})
.then(modal => {
if (editEnrolLink) {
modal.getRoot().on('click', Selectors.editEnrolment, e => {
e.preventDefault();
modal.hide();
// Trigger click event for the edit enrolment link to show the edit enrolment modal.
editEnrolLink.click();
});
}
modal.show();
// Handle hidden event.
modal.getRoot().on(ModalEvents.hidden, () => modal.destroy());
return modal;
})
.catch(Notification.exception);
};
/**
* Submit the edit dialogue.
*
* @param {HTMLElement} clickedLink
* @param {Function} getBody
* @param {Object} modal
* @param {Number} userEnrolmentId
* @param {Object} userData
*/
const submitEditFormAjax = (clickedLink, getBody, modal, userEnrolmentId, userData) => {
const form = modal.getRoot().find('form');
Repository.submitUserEnrolmentForm(form.serialize())
.then(data => {
if (!data.result) {
throw data.result;
}
// Dismiss the modal.
modal.hide();
modal.destroy();
return data;
})
.then(() => {
DynamicTable.refreshTableContent(getDynamicTableFromLink(clickedLink))
.catch(Notification.exception);
return Str.get_string('enrolmentupdatedforuser', 'core_enrol', userData);
})
.then(notificationString => {
notifyUser(notificationString);
return;
})
.catch(() => {
modal.setBody(getBody(userEnrolmentId, JSON.stringify(form.serialize())));
return modal;
});
};
/**
* Submit the unenrolment form.
*
* @param {HTMLElement} clickedLink
* @param {Object} modal
* @param {Object} args
* @param {Object} userData
*/
const submitUnenrolFormAjax = (clickedLink, modal, args, userData) => {
Repository.unenrolUser(args.ueid)
.then(data => {
if (!data.result) {
// Display an alert containing the error message
Notification.alert(data.errors[0].key, data.errors[0].message);
return data;
}
// Dismiss the modal.
modal.hide();
modal.destroy();
return data;
})
.then(() => {
DynamicTable.refreshTableContent(getDynamicTableFromLink(clickedLink))
.catch(Notification.exception);
return Str.get_string('unenrolleduser', 'core_enrol', userData);
})
.then(notificationString => {
notifyUser(notificationString);
return;
})
.catch(Notification.exception);
};
/**
* Get the body fragment.
*
* @param {Number} contextId
* @param {Number} ueid The user enrolment id
* @param {Object} formdata
* @returns {Promise}
*/
const getBody = (contextId, ueid, formdata = null) => Fragment.loadFragment(
'enrol',
'user_enrolment_form',
contextId,
{
ueid,
formdata,
}
);
/**
* Initialise the statu field handler.
*
* @param {Number} contextid
* @param {Number} uniqueid
*/
export const init = ({contextid, uniqueid}) => {
registerEventListeners(contextid, uniqueid);
};