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MOBILE-4543 course: Improvements on course options delegate

main
Pau Ferrer Ocaña 2024-03-21 15:50:49 +01:00
parent 0d56f802f2
commit 4f56e08f9b
12 changed files with 118 additions and 92 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
src/addons/badges/services/handlers/user.ts
View File

@ -64,7 +64,7 @@ export class AddonBadgesUserHandlerService implements CoreUserProfileHandler {
return false;
}
if (navOptions && navOptions.badges !== undefined) {
if (navOptions?.badges !== undefined) {
return navOptions.badges;
}

2
src/addons/blog/services/handlers/course-option.ts
View File

@ -61,7 +61,7 @@ export class AddonBlogCourseOptionHandlerService implements CoreCourseOptionsHan
): Promise<boolean> {
const enabled = await CoreCourseHelper.hasABlockNamed(courseId, 'blog_menu');
if (enabled && navOptions && navOptions.blogs !== undefined) {
if (enabled && navOptions?.blogs !== undefined) {
return navOptions.blogs;
}

8
src/addons/competency/services/handlers/course-option.ts
View File

@ -13,7 +13,7 @@
// limitations under the License.
import { Injectable } from '@angular/core';
import { CoreCourseProvider } from '@features/course/services/course';
import { CoreCourseAccessDataType } from '@features/course/services/course';
import {
CoreCourseAccess,
CoreCourseOptionsHandler,
@ -50,11 +50,11 @@ export class AddonCompetencyCourseOptionHandlerService implements CoreCourseOpti
accessData: CoreCourseAccess,
navOptions?: CoreCourseUserAdminOrNavOptionIndexed,
): Promise<boolean> {
if (accessData && accessData.type === CoreCourseProvider.ACCESS_GUEST) {
if (accessData && accessData.type === CoreCourseAccessDataType.ACCESS_GUEST) {
return false; // Not enabled for guest access.
}
if (navOptions && navOptions.competencies !== undefined) {
if (navOptions?.competencies !== undefined) {
return navOptions.competencies;
}
@ -82,7 +82,7 @@ export class AddonCompetencyCourseOptionHandlerService implements CoreCourseOpti
* @inheritdoc
*/
async invalidateEnabledForCourse(courseId: number, navOptions?: CoreCourseUserAdminOrNavOptionIndexed): Promise<void> {
if (navOptions && navOptions.competencies !== undefined) {
if (navOptions?.competencies !== undefined) {
// No need to invalidate anything.
return;
}

4
src/addons/coursecompletion/services/handlers/course-option.ts
View File

@ -13,7 +13,7 @@
// limitations under the License.
import { Injectable } from '@angular/core';
import { CoreCourseProvider } from '@features/course/services/course';
import { CoreCourseAccessDataType } from '@features/course/services/course';
import {
CoreCourseAccess,
CoreCourseOptionsHandler,
@ -43,7 +43,7 @@ export class AddonCourseCompletionCourseOptionHandlerService implements CoreCour
* @inheritdoc
*/
async isEnabledForCourse(courseId: number, accessData: CoreCourseAccess): Promise<boolean> {
if (accessData && accessData.type === CoreCourseProvider.ACCESS_GUEST) {
if (accessData && accessData.type === CoreCourseAccessDataType.ACCESS_GUEST) {
return false; // Not enabled for guest access.
}

6
src/addons/notes/services/handlers/course-option.ts
View File

@ -13,7 +13,7 @@
// limitations under the License.
import { Injectable } from '@angular/core';
import { CoreCourseProvider } from '@features/course/services/course';
import { CoreCourseAccessDataType } from '@features/course/services/course';
import {
CoreCourseAccess,
CoreCourseOptionsHandler,
@ -47,11 +47,11 @@ export class AddonNotesCourseOptionHandlerService implements CoreCourseOptionsHa
accessData: CoreCourseAccess,
navOptions?: CoreCourseUserAdminOrNavOptionIndexed,
): Promise<boolean> {
if (accessData && accessData.type === CoreCourseProvider.ACCESS_GUEST) {
if (accessData && accessData.type === CoreCourseAccessDataType.ACCESS_GUEST) {
return false; // Not enabled for guest access.
}
if (navOptions && navOptions.notes !== undefined) {
if (navOptions?.notes !== undefined) {
return navOptions.notes;
}

2
src/core/features/course/pages/course-summary/course-summary.page.ts
View File

@ -254,7 +254,7 @@ export class CoreCourseSummaryPage implements OnInit, OnDestroy {
* @returns Promise resolved when done.
*/
protected async loadMenuHandlers(refresh?: boolean): Promise<void> {
if (!this.course) {
if (!this.course || !this.canAccessCourse) {
return;
}

143
src/core/features/course/services/course-options-delegate.ts
View File

@ -24,10 +24,9 @@ import {
CoreCoursesProvider,
CoreCourseUserAdminOrNavOptionIndexed,
} from '@features/courses/services/courses';
import { CoreCourseProvider } from './course';
import { CoreCourseAccessDataType } from './course';
import { Params } from '@angular/router';
import { makeSingleton } from '@singletons';
import { CoreEnrolledCourseDataWithExtraInfoAndOptions } from '@features/courses/services/courses-helper';
import { CorePromisedValue } from '@classes/promised-value';
/**
@ -313,20 +312,20 @@ export class CoreCourseOptionsDelegateService extends CoreDelegate<CoreCourseOpt
* @param admOptions Course admin options for current user. See CoreCoursesProvider.getUserAdministrationOptions.
* @returns Promise resolved with array of handlers.
*/
protected async getHandlersForAccess(
protected async updateHandlersForAccess(
courseId: number,
refresh: boolean,
accessData: CoreCourseAccess,
navOptions?: CoreCourseUserAdminOrNavOptionIndexed,
admOptions?: CoreCourseUserAdminOrNavOptionIndexed,
): Promise<CoreCourseOptionsHandler[]> {
): Promise<void> {
// If the handlers aren't loaded, do not refresh.
if (!this.loaded[courseId]) {
refresh = false;
}
if (refresh || !this.coursesHandlers[courseId] || this.coursesHandlers[courseId].access.type != accessData.type) {
if (refresh || !this.coursesHandlers[courseId] || this.coursesHandlers[courseId].access.type !== accessData.type) {
if (!this.coursesHandlers[courseId]) {
this.coursesHandlers[courseId] = {
access: accessData,
@ -347,8 +346,6 @@ export class CoreCourseOptionsDelegateService extends CoreDelegate<CoreCourseOpt
}
await this.coursesHandlers[courseId].deferred;
return this.coursesHandlers[courseId].enabledHandlers;
}
/**
@ -358,18 +355,14 @@ export class CoreCourseOptionsDelegateService extends CoreDelegate<CoreCourseOpt
* @param course The course object.
* @param refresh True if it should refresh the list.
* @param isGuest Whether user is using an ACCESS_GUEST enrolment method.
* @param navOptions Course navigation options for current user. See CoreCoursesProvider.getUserNavigationOptions.
* @param admOptions Course admin options for current user. See CoreCoursesProvider.getUserAdministrationOptions.
* @returns Promise resolved with array of handlers.
*/
getHandlersToDisplay(
course: CoreCourseAnyCourseData,
refresh = false,
isGuest = false,
navOptions?: CoreCourseUserAdminOrNavOptionIndexed,
admOptions?: CoreCourseUserAdminOrNavOptionIndexed,
): Promise<CoreCourseOptionsHandlerToDisplay[]> {
return this.getHandlersToDisplayInternal(false, course, refresh, isGuest, navOptions, admOptions) as
return this.getHandlersToDisplayInternal(false, course, refresh, isGuest) as
Promise<CoreCourseOptionsHandlerToDisplay[]>;
}
@ -380,18 +373,14 @@ export class CoreCourseOptionsDelegateService extends CoreDelegate<CoreCourseOpt
* @param course The course object.
* @param refresh True if it should refresh the list.
* @param isGuest Whether user is using an ACCESS_GUEST enrolment method.
* @param navOptions Course navigation options for current user. See CoreCoursesProvider.getUserNavigationOptions.
* @param admOptions Course admin options for current user. See CoreCoursesProvider.getUserAdministrationOptions.
* @returns Promise resolved with array of handlers.
*/
getMenuHandlersToDisplay(
course: CoreCourseAnyCourseData,
refresh = false,
isGuest = false,
navOptions?: CoreCourseUserAdminOrNavOptionIndexed,
admOptions?: CoreCourseUserAdminOrNavOptionIndexed,
): Promise<CoreCourseOptionsMenuHandlerToDisplay[]> {
return this.getHandlersToDisplayInternal(true, course, refresh, isGuest, navOptions, admOptions) as
return this.getHandlersToDisplayInternal(true, course, refresh, isGuest) as
Promise<CoreCourseOptionsMenuHandlerToDisplay[]>;
}
@ -403,8 +392,6 @@ export class CoreCourseOptionsDelegateService extends CoreDelegate<CoreCourseOpt
* @param course The course object.
* @param refresh True if it should refresh the list.
* @param isGuest Whether user is using an ACCESS_GUEST enrolment method.
* @param navOptions Course navigation options for current user. See CoreCoursesProvider.getUserNavigationOptions.
* @param admOptions Course admin options for current user. See CoreCoursesProvider.getUserAdministrationOptions.
* @returns Promise resolved with array of handlers.
*/
protected async getHandlersToDisplayInternal(
@ -412,36 +399,30 @@ export class CoreCourseOptionsDelegateService extends CoreDelegate<CoreCourseOpt
course: CoreCourseAnyCourseData,
refresh = false,
isGuest = false,
navOptions?: CoreCourseUserAdminOrNavOptionIndexed,
admOptions?: CoreCourseUserAdminOrNavOptionIndexed,
): Promise<CoreCourseOptionsHandlerToDisplay[] | CoreCourseOptionsMenuHandlerToDisplay[]> {
const courseWithOptions: CoreCourseAnyCourseDataWithOptions = course;
const accessData = {
type: isGuest ? CoreCourseProvider.ACCESS_GUEST : CoreCourseProvider.ACCESS_DEFAULT,
type: isGuest ? CoreCourseAccessDataType.ACCESS_GUEST : CoreCourseAccessDataType.ACCESS_DEFAULT,
};
const handlersToDisplay: CoreCourseOptionsHandlerToDisplay[] | CoreCourseOptionsMenuHandlerToDisplay[] = [];
if (navOptions) {
courseWithOptions.navOptions = navOptions;
}
if (admOptions) {
courseWithOptions.admOptions = admOptions;
}
await this.loadCourseOptions(courseWithOptions, refresh);
// Call getHandlersForAccess to make sure the handlers have been loaded.
await this.getHandlersForAccess(course.id, refresh, accessData, courseWithOptions.navOptions, courseWithOptions.admOptions);
// Call updateHandlersForAccess to make sure the handlers have been loaded.
await this.updateHandlersForAccess(
course.id,
refresh,
accessData,
courseWithOptions.navOptions,
courseWithOptions.admOptions,
);
const promises: Promise<void>[] = [];
let handlerList: CoreCourseOptionsMenuHandler[] | CoreCourseOptionsHandler[];
if (menu) {
handlerList = this.coursesHandlers[course.id].enabledMenuHandlers;
} else {
handlerList = this.coursesHandlers[course.id].enabledHandlers;
}
const handlerList = menu
? this.coursesHandlers[course.id].enabledMenuHandlers
: this.coursesHandlers[course.id].enabledHandlers;
handlerList.forEach((handler: CoreCourseOptionsMenuHandler | CoreCourseOptionsHandler) => {
const getFunction = menu
@ -461,8 +442,8 @@ export class CoreCourseOptionsDelegateService extends CoreDelegate<CoreCourseOpt
});
return;
}).catch((err) => {
this.logger.error('Error getting data for handler', handler.name, err);
}).catch((error) => {
this.logger.error(`Error getting data for handler ${handler.name}`, error);
}));
});
@ -477,17 +458,44 @@ export class CoreCourseOptionsDelegateService extends CoreDelegate<CoreCourseOpt
return handlersToDisplay;
}
/**
* Get the handlers for a course using a certain access type.
*
* @param courseId The course ID.
* @param refresh True if it should refresh the list.
* @param accessData Access type and data. Default, guest, ...
* @param navOptions Course navigation options for current user. See CoreCoursesProvider.getUserNavigationOptions.
* @param admOptions Course admin options for current user. See CoreCoursesProvider.getUserAdministrationOptions.
* @returns Promise resolved with array of handlers.
* @deprecated since 4.4.
*/
protected async hasHandlersForAccess(
courseId: number,
refresh: boolean,
accessData: CoreCourseAccess,
navOptions?: CoreCourseUserAdminOrNavOptionIndexed,
admOptions?: CoreCourseUserAdminOrNavOptionIndexed,
): Promise<boolean> {
await this.updateHandlersForAccess(courseId, refresh, accessData, navOptions, admOptions);
const handlers = this.coursesHandlers[courseId].enabledHandlers;
return !!(handlers && handlers.length);
}
/**
* Check if a course has any handler enabled for default access, using course object.
*
* @param course The course object.
* @param refresh True if it should refresh the list.
* @returns Promise resolved with boolean: true if it has handlers, false otherwise.
* @deprecated since 4.4.
*/
async hasHandlersForCourse(course: CoreEnrolledCourseDataWithExtraInfoAndOptions, refresh = false): Promise<boolean> {
async hasHandlersForCourse(course: CoreCourseAnyCourseDataWithOptions, refresh = false): Promise<boolean> {
// Load course options if missing.
await this.loadCourseOptions(course, refresh);
// eslint-disable-next-line deprecation/deprecation
return this.hasHandlersForDefault(course.id, refresh, course.navOptions, course.admOptions);
}
@ -499,6 +507,7 @@ export class CoreCourseOptionsDelegateService extends CoreDelegate<CoreCourseOpt
* @param navOptions Course navigation options for current user. See CoreCoursesProvider.getUserNavigationOptions.
* @param admOptions Course admin options for current user. See CoreCoursesProvider.getUserAdministrationOptions.
* @returns Promise resolved with boolean: true if it has handlers, false otherwise.
* @deprecated since 4.4.
*/
async hasHandlersForDefault(
courseId: number,
@ -506,14 +515,14 @@ export class CoreCourseOptionsDelegateService extends CoreDelegate<CoreCourseOpt
navOptions?: CoreCourseUserAdminOrNavOptionIndexed,
admOptions?: CoreCourseUserAdminOrNavOptionIndexed,
): Promise<boolean> {
// Default access.
const accessData = {
type: CoreCourseProvider.ACCESS_DEFAULT,
};
const handlers = await this.getHandlersForAccess(courseId, refresh, accessData, navOptions, admOptions);
return !!(handlers && handlers.length);
// eslint-disable-next-line deprecation/deprecation
return await this.hasHandlersForAccess(
courseId,
refresh,
{ type: CoreCourseAccessDataType.ACCESS_DEFAULT },
navOptions,
admOptions,
);
}
/**
@ -524,6 +533,7 @@ export class CoreCourseOptionsDelegateService extends CoreDelegate<CoreCourseOpt
* @param navOptions Course navigation options for current user. See CoreCoursesProvider.getUserNavigationOptions.
* @param admOptions Course admin options for current user. See CoreCoursesProvider.getUserAdministrationOptions.
* @returns Promise resolved with boolean: true if it has handlers, false otherwise.
* @deprecated since 4.4.
*/
async hasHandlersForGuest(
courseId: number,
@ -531,14 +541,14 @@ export class CoreCourseOptionsDelegateService extends CoreDelegate<CoreCourseOpt
navOptions?: CoreCourseUserAdminOrNavOptionIndexed,
admOptions?: CoreCourseUserAdminOrNavOptionIndexed,
): Promise<boolean> {
// Guest access.
const accessData = {
type: CoreCourseProvider.ACCESS_GUEST,
};
const handlers = await this.getHandlersForAccess(courseId, refresh, accessData, navOptions, admOptions);
return !!(handlers && handlers.length);
// eslint-disable-next-line deprecation/deprecation
return await this.hasHandlersForAccess(
courseId,
refresh,
{ type: CoreCourseAccessDataType.ACCESS_GUEST },
navOptions,
admOptions,
);
}
/**
@ -547,7 +557,7 @@ export class CoreCourseOptionsDelegateService extends CoreDelegate<CoreCourseOpt
* @param courseId Course ID.
* @returns Promise resolved when done.
*/
async invalidateCourseHandlers(courseId: number): Promise<void> {
protected async invalidateCourseHandlers(courseId: number): Promise<void> {
const promises: Promise<void>[] = [];
const courseData = this.coursesHandlers[courseId];
@ -556,7 +566,7 @@ export class CoreCourseOptionsDelegateService extends CoreDelegate<CoreCourseOpt
}
courseData.enabledHandlers.forEach((handler) => {
if (handler?.invalidateEnabledForCourse) {
if (handler.invalidateEnabledForCourse) {
promises.push(
handler.invalidateEnabledForCourse(courseId, courseData.navOptions, courseData.admOptions),
);
@ -579,7 +589,7 @@ export class CoreCourseOptionsDelegateService extends CoreDelegate<CoreCourseOpt
return true;
}
return time == this.lastUpdateHandlersForCoursesStart[courseId];
return time === this.lastUpdateHandlersForCoursesStart[courseId];
}
/**
@ -590,12 +600,13 @@ export class CoreCourseOptionsDelegateService extends CoreDelegate<CoreCourseOpt
* @returns Promise resolved when done.
*/
protected async loadCourseOptions(course: CoreCourseAnyCourseDataWithOptions, refresh = false): Promise<void> {
if (course.navOptions === undefined || course.admOptions === undefined || refresh) {
const options = await CoreCourses.getCoursesAdminAndNavOptions([course.id]);
course.navOptions = options.navOptions[course.id];
course.admOptions = options.admOptions[course.id];
if (!refresh && course.navOptions !== undefined && course.admOptions !== undefined) {
return;
}
const options = await CoreCourses.getCoursesAdminAndNavOptions([course.id]);
course.navOptions = options.navOptions[course.id];
course.admOptions = options.admOptions[course.id];
}
/**
@ -618,7 +629,7 @@ export class CoreCourseOptionsDelegateService extends CoreDelegate<CoreCourseOpt
* @param admOptions Course admin options for current user. See CoreCoursesProvider.getUserAdministrationOptions.
* @returns Resolved when updated.
*/
async updateHandlersForCourse(
protected async updateHandlersForCourse(
courseId: number,
accessData: CoreCourseAccess,
navOptions?: CoreCourseUserAdminOrNavOptionIndexed,
@ -676,5 +687,5 @@ export class CoreCourseOptionsDelegateService extends CoreDelegate<CoreCourseOpt
export const CoreCourseOptionsDelegate = makeSingleton(CoreCourseOptionsDelegateService);
export type CoreCourseAccess = {
type: string; // Either CoreCourseProvider.ACCESS_GUEST or CoreCourseProvider.ACCESS_DEFAULT.
type: CoreCourseAccessDataType;
};

25
src/core/features/course/services/course.ts
View File

@ -80,7 +80,7 @@ declare module '@singletons/events' {
/**
* Course Module completion status enumeration.
*/
export enum CoreCourseModuleCompletionStatus {
export const enum CoreCourseModuleCompletionStatus {
COMPLETION_INCOMPLETE = 0,
COMPLETION_COMPLETE = 1,
COMPLETION_COMPLETE_PASS = 2,
@ -90,7 +90,7 @@ export enum CoreCourseModuleCompletionStatus {
/**
* @deprecated since 4.3 Not used anymore.
*/
export enum CoreCourseCompletionMode {
export const enum CoreCourseCompletionMode {
FULL = 'full',
BASIC = 'basic',
}
@ -98,12 +98,20 @@ export enum CoreCourseCompletionMode {
/**
* Completion tracking valid values.
*/
export enum CoreCourseModuleCompletionTracking {
export const enum CoreCourseModuleCompletionTracking {
COMPLETION_TRACKING_NONE = 0,
COMPLETION_TRACKING_MANUAL = 1,
COMPLETION_TRACKING_AUTOMATIC = 2,
}
export const CoreCourseAccessDataType = {
ACCESS_GUEST: 'courses_access_guest', // eslint-disable-line @typescript-eslint/naming-convention
ACCESS_DEFAULT: 'courses_access_default', // eslint-disable-line @typescript-eslint/naming-convention
} as const;
// eslint-disable-next-line @typescript-eslint/no-redeclare
export type CoreCourseAccessDataType = typeof CoreCourseAccessDataType[keyof typeof CoreCourseAccessDataType];
/**
* Service that provides some features regarding a course.
*/
@ -112,10 +120,17 @@ export class CoreCourseProvider {
static readonly ALL_SECTIONS_ID = -2;
static readonly STEALTH_MODULES_SECTION_ID = -1;
static readonly ACCESS_GUEST = 'courses_access_guest';
static readonly ACCESS_DEFAULT = 'courses_access_default';
static readonly ALL_COURSES_CLEARED = -1;
/**
* @deprecated since 4.4 Not used anymore. Use CoreCourseAccessDataType instead.
*/
static readonly ACCESS_GUEST = CoreCourseAccessDataType.ACCESS_GUEST;
/**
* @deprecated since 4.4 Not used anymore. Use CoreCourseAccessDataType instead.
*/
static readonly ACCESS_DEFAULT = CoreCourseAccessDataType.ACCESS_DEFAULT;
static readonly COMPONENT = 'CoreCourse';
readonly CORE_MODULES = [

6
src/core/features/grades/services/grades-helper.ts
View File

@ -22,7 +22,7 @@ import {
CoreCourseSearchedData,
CoreCourseUserAdminOrNavOptionIndexed,
} from '@features/courses/services/courses';
import { CoreCourse, CoreCourseProvider } from '@features/course/services/course';
import { CoreCourse, CoreCourseAccessDataType } from '@features/course/services/course';
import {
CoreGrades,
CoreGradesGradeItem,
@ -680,11 +680,11 @@ export class CoreGradesHelperProvider {
accessData: CoreCourseAccess,
navOptions?: CoreCourseUserAdminOrNavOptionIndexed,
): Promise<boolean> {
if (accessData && accessData.type == CoreCourseProvider.ACCESS_GUEST) {
if (accessData && accessData.type === CoreCourseAccessDataType.ACCESS_GUEST) {
return false; // Not enabled for guests.
}
if (navOptions && navOptions.grades !== undefined) {
if (navOptions?.grades !== undefined) {
return navOptions.grades;
}

2
src/core/features/grades/services/handlers/course-option.ts
View File

@ -38,7 +38,7 @@ export class CoreGradesCourseOptionHandlerService implements CoreCourseOptionsHa
async invalidateEnabledForCourse(courseId: number, navOptions?: CoreCourseUserAdminOrNavOptionIndexed): Promise<void> {
await CoreGrades.invalidateCourseGradesPermissionsData(courseId);
if (navOptions && navOptions.grades !== undefined) {
if (navOptions?.grades !== undefined) {
// No need to invalidate user courses.
return;
}

2
src/core/features/grades/services/handlers/course-participants-option.ts
View File

@ -38,7 +38,7 @@ export class CoreGradesCourseParticipantsOptionHandlerService implements CoreCou
async invalidateEnabledForCourse(courseId: number, navOptions?: CoreCourseUserAdminOrNavOptionIndexed): Promise<void> {
await CoreGrades.invalidateCourseGradesPermissionsData(courseId);
if (navOptions && navOptions.grades !== undefined) {
if (navOptions?.grades !== undefined) {
// No need to invalidate user courses.
return;
}

8
src/core/features/user/services/handlers/course-option.ts
View File

@ -13,7 +13,7 @@
// limitations under the License.
import { Injectable } from '@angular/core';
import { CoreCourseProvider } from '@features/course/services/course';
import { CoreCourseAccessDataType } from '@features/course/services/course';
import {
CoreCourseAccess,
CoreCourseOptionsHandler,
@ -37,7 +37,7 @@ export class CoreUserCourseOptionHandlerService implements CoreCourseOptionsHand
* @inheritdoc
*/
invalidateEnabledForCourse(courseId: number, navOptions?: CoreCourseUserAdminOrNavOptionIndexed): Promise<void> {
if (navOptions && navOptions.participants !== undefined) {
if (navOptions?.participants !== undefined) {
// No need to invalidate anything.
return Promise.resolve();
}
@ -60,11 +60,11 @@ export class CoreUserCourseOptionHandlerService implements CoreCourseOptionsHand
accessData: CoreCourseAccess,
navOptions?: CoreCourseUserAdminOrNavOptionIndexed,
): boolean | Promise<boolean> {
if (accessData && accessData.type == CoreCourseProvider.ACCESS_GUEST) {
if (accessData && accessData.type === CoreCourseAccessDataType.ACCESS_GUEST) {
return false; // Not enabled for guests.
}
if (navOptions && navOptions.participants !== undefined) {
if (navOptions?.participants !== undefined) {
return navOptions.participants;
}