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/>.

/**

 * JS for the mod_form page on mod_bigbluebuttonbn plugin.

 *

 * @module      mod_bigbluebuttonbn/modform

 * @copyright   2021 Blindside Networks Inc

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

 */

import {getString} from 'core/str';

import Notification from 'core/notification';

import Templates from "core/templates";

/**

 * Get all selectors in one place.

 *

 */

const ELEMENT_SELECTOR = {

    instanceTypeSelection: () => document.querySelector('select#id_type'),

    instanceTypeProfiles: () => document.querySelector('[data-profile-types]'),

    participantData: () => document.querySelector('[data-participant-data]'),

    participantList: () => document.getElementsByName('participants')[0],

    participantTable: () => document.getElementById('participant_list_table'),

    participantSelectionType: () => document.getElementsByName('bigbluebuttonbn_participant_selection_type')[0],

    participantSelection: () => document.getElementsByName('bigbluebuttonbn_participant_selection')[0],

    participantAddButton: () => document.getElementsByName('bigbluebuttonbn_participant_selection_add')[0],

};

/**

 * Initialise the moodle form code.

 *

 * This will help hide or show items depending on the selection of the instance type.

 *

 * @method init

 * @param {object} info

 */

export const init = (info) => {

    const selectedType = ELEMENT_SELECTOR.instanceTypeSelection();

    const instanceTypeProfiles = JSON.parse(ELEMENT_SELECTOR.instanceTypeProfiles().dataset.profileTypes);

    let profileType = info.instanceTypeDefault;

    if (selectedType !== null && selectedType.selectedIndex !== -1) {

        profileType = selectedType.options[selectedType.selectedIndex].value;

    }

    const isFeatureEnabled = (profileType, feature) => {

        const features = instanceTypeProfiles[profileType].features;

        return (features.indexOf(feature) !== -1);

    };

    applyInstanceTypeProfile(profileType, isFeatureEnabled);

    // Change form visible fields depending on the selection.

    selectedType.addEventListener('change', (e) => {

        applyInstanceTypeProfile(e.target.value, isFeatureEnabled);

    });

    ELEMENT_SELECTOR.participantSelectionType().addEventListener('change', (e) => {

        const currentTypeSelect = e.target;

        updateSelectionFromType(currentTypeSelect);

    });

    ELEMENT_SELECTOR.participantAddButton().addEventListener('click', (e) => {

        e.stopPropagation();

        e.preventDefault();

        participantAddFromCurrentSelection();

    });

    participantListInit();

};

/**

 * Show or hide form element depending on the selected profile

 *

 * @param {string} profileType

 * @param {function} isFeatureEnabled

 */

const applyInstanceTypeProfile = (profileType, isFeatureEnabled) => {

    let showAll = isFeatureEnabled(profileType, 'all');

    const showFieldset = (id, show) => {

        // Show room settings validation.

        const node = document.querySelector('#' + id);

        if (!node) {

            return;

        }

        if (show) {

            node.style.display = 'block';

            return;

        }

        node.style.display = 'none';

    };

    const showInput = (id, show) => {

        // Show room settings validation.

        const node = document.querySelector('#' + id);

        if (!node) {

            return;

        }

        var ancestor = node.closest('div').closest('div');

        if (show) {

            ancestor.style.display = 'block';

            return;

        }

        ancestor.style.display = 'none';

    };

    const showFormGroup = (id, show) => {

        // Show room settings validation.

        const node = document.querySelector('#fgroup_id_' + id);

        if (!node) {

            return;

        }

        if (show) {

            node.classList.remove('hidden');

            return;

        }

        node.classList.add('hidden');

    };

    // Show room settings validation.

    showFieldset('id_room', showAll ||

        isFeatureEnabled(profileType, 'showroom'));

    showInput('id_record', showAll ||

        isFeatureEnabled(profileType, 'showroom'));

    // Show recordings settings validation.

    showFieldset('id_recordings', showAll ||

        isFeatureEnabled(profileType, 'showrecordings'));

    // Show recordings imported settings validation.

    showInput('id_recordings_imported', showAll ||

        isFeatureEnabled(profileType, 'showrecordings'));

    // Show lock settings validation.

    showFieldset('id_lock', showAll ||

        isFeatureEnabled(profileType, 'lock'));

    // Show guest settings validation.

    showFieldset('id_guestaccess', showAll ||

        isFeatureEnabled(profileType, 'showroom'));

    // Preuploadpresentation feature validation.

    showFieldset('id_preuploadpresentation', showAll ||

        isFeatureEnabled(profileType, 'preuploadpresentation'));

    // Participants feature validation.

    showFieldset('id_permissions', showAll ||

        isFeatureEnabled(profileType, 'permissions'));

    // Schedule feature validation.

    showFieldset('id_schedule', showAll ||

        isFeatureEnabled(profileType, 'schedule'));

    // Common module settings validation.

    showFieldset('id_modstandardelshdr', showAll ||

        isFeatureEnabled(profileType, 'modstandardelshdr'));

    // Restrict access validation.

    showFieldset('id_availabilityconditionsheader', showAll ||

        isFeatureEnabled(profileType, 'availabilityconditionsheader'));

    // Tags validation.

    showFieldset('id_tagshdr', showAll || isFeatureEnabled(profileType, 'tagshdr'));

    // Competencies validation.

    showFieldset('id_competenciessection', showAll ||

        isFeatureEnabled(profileType, 'competenciessection'));

    // Standards grading feature validation.

    showFieldset('id_modstandardgrade', showAll ||

        isFeatureEnabled(profileType, 'modstandardgrade'));

    // Completion validation.

    showFieldset('id_activitycompletionheader', showAll ||

        isFeatureEnabled(profileType, 'activitycompletionheader'));

    // Completion validation.

    showFormGroup('completionattendancegroup', showAll ||

        isFeatureEnabled(profileType, 'completionattendance'));

    // Completion validation.

    showFormGroup('completionengagementgroup', showAll ||

        isFeatureEnabled(profileType, 'completionengagement'));

};

/**

 * Init the participant list

 */

const participantListInit = () => {

    const participantData = JSON.parse(ELEMENT_SELECTOR.participantData().dataset.participantData);

    const participantList = getParticipantList();

    participantList.forEach(participant => {

        const selectionTypeValue = participant.selectiontype;

        const selectionValue = participant.selectionid;

        const selectionRole = participant.role;

        if (participant.selectiontype === 'all' ||

            typeof participantData[participant.selectiontype].children[participant.selectionid] !== 'undefined') {

            // Add it to the form, but don't add the delete button if it is the first item.

            participantAddToForm(selectionTypeValue, selectionValue, selectionRole, true).then();

        }

    });

};

/**

 * Add rows to the participant list depending on the current selection.

 *

 * @param {string} selectionTypeValue

 * @param {string} selectionValue

 * @param {string} selectedRole

 * @param {boolean} canRemove

 * @returns {Promise<void>}

 */

const participantAddToForm = async(selectionTypeValue, selectionValue, selectedRole, canRemove) => {

    const participantData = JSON.parse(ELEMENT_SELECTOR.participantData().dataset.participantData);

    const sviewer = await getString('mod_form_field_participant_bbb_role_viewer', 'mod_bigbluebuttonbn');

    const smoderator = await getString('mod_form_field_participant_bbb_role_moderator', 'mod_bigbluebuttonbn');

    let roles = {

        viewer: {'id': 'viewer', label: sviewer},

        moderator: {'id': 'moderator', label: smoderator}

    };

    roles[selectedRole].isselected = true;

    try {

        const listTable = document.querySelector('#participant_list_table tbody');

        const templateContext = {

            'selectiontypevalue': selectionTypeValue,

            'selectionvalue': selectionValue,

            'participanttype': participantData[selectionTypeValue].name,

            'participantvalue':

                (selectionTypeValue !== 'all') ?

                    participantData[selectionTypeValue].children[selectionValue].name : null,

            'roles': Object.values(roles),

            'canRemove': canRemove

        };

        const {html, js} = await Templates.renderForPromise('mod_bigbluebuttonbn/participant_form_add', templateContext);

        const newNode = Templates.appendNodeContents(listTable, html, js)[0];

        newNode.querySelector('.participant-select').addEventListener('change', () => {

            participantListRoleUpdate(selectionTypeValue, selectionValue);

        });

        // Now add the callbacks: participantListRoleUpdate() and participantRemove().

        const removeNode = newNode.querySelector('.remove-button');

        if (removeNode) {

            removeNode

                .addEventListener('click', () => {

                    participantRemove(selectionTypeValue, selectionValue);

                });

        }

    } catch (e) {

        Notification.exception(e);

    }

};

/*

 */

/**

 * Update the related form element with the list value.

 *

 * @param {object} list

 */

const participantListUpdate = (list) => {

    const participantList = ELEMENT_SELECTOR.participantList();

    participantList.value = JSON.stringify(list);

};

/**

 *

 * @returns {any}

 */

const getParticipantList = () => {

    const participantListValue = ELEMENT_SELECTOR.participantList().value;

    if (participantListValue) {

        return JSON.parse(participantListValue);

    }

    return [];

};

/**

 * Remove participant both in the table/form and in the form element.

 *

 * @param {string} selectionTypeValue

 * @param {string} selectionValue

 */

const participantRemove = (selectionTypeValue, selectionValue) => {

    const pList = getParticipantList();

    const id = 'participant_list_tr_' + selectionTypeValue + '-' + selectionValue;

    const participantListTable = ELEMENT_SELECTOR.participantTable();

    const selectionid = (selectionValue === '' ? null : selectionValue);

    for (let i = 0; i < pList.length; i++) {

        if (pList[i].selectiontype === selectionTypeValue &&

            pList[i].selectionid === selectionid) {

            pList.splice(i, 1);

        }

    }

    // Remove from the form.

    for (let i = 0; i < participantListTable.rows.length; i++) {

        if (participantListTable.rows[i].id === id) {

            participantListTable.deleteRow(i);

        }

    }

    // Update value in the form.

    participantListUpdate(pList);

};

/**

 * Role update

 *

 * @param {string} type

 * @param {string} id

 */

const participantListRoleUpdate = (type, id) => {

    // Update in memory.

    const participantListRoleSelection = document.querySelector(`#participant_list_tr_${type}-${id} .participant-select`);

    const pList = getParticipantList();

    for (var i = 0; i < pList.length; i++) {

        if (pList[i].selectiontype === type && pList[i].selectionid === id) {

            pList[i].role = participantListRoleSelection.value;

        }

    }

    // Update in the form.

    participantListUpdate(pList);

};

/**

 * Add participant from the currently selected options

 */

const participantAddFromCurrentSelection = () => {

    let selectionType = ELEMENT_SELECTOR.participantSelectionType();

    let selection = ELEMENT_SELECTOR.participantSelection();

    const pList = getParticipantList();

    // Lookup to see if it has been added already.

    for (var i = 0; i < pList.length; i++) {

        if (pList[i].selectiontype === selectionType.value &&

            pList[i].selectionid === selection.value) {

            return;

        }

    }

    pList.push({

        "selectiontype": selectionType.value,

        "selectionid": selection.value,

        "role": "viewer"

    });

    // Add it to the form.

    participantAddToForm(selectionType.value, selection.value, 'viewer', true).then();

    // Update in the form.

    participantListUpdate(pList);

};

/**

 * Update selectable options when changing types

 *

 * @param {HTMLNode} currentTypeSelect

 */

const updateSelectionFromType = (currentTypeSelect) => {

    const createNewOption = (selectItem, label, value) => {

        const option = document.createElement('option');

        option.text = label;

        option.value = value;

        selectItem.add(option);

    };

    const participantData = JSON.parse(ELEMENT_SELECTOR.participantData().dataset.participantData);

    // Clear all selection items.

    const participantSelect = ELEMENT_SELECTOR.participantSelection();

    while (participantSelect.firstChild) {

        participantSelect.removeChild(participantSelect.firstChild);

    }

    // Add options depending on the selection.

    if (currentTypeSelect.selectedIndex !== -1) {

        const options = Object.values(participantData[currentTypeSelect.value].children);

        options.forEach(option => {

            createNewOption(participantSelect, option.name, option.id);

        });

        if (currentTypeSelect.value === 'all') {

            createNewOption(participantSelect, '---------------', 'all');

            participantSelect.disabled = true;

        } else {

            participantSelect.disabled = false;

        }

    }

};