104 lines
3.5 KiB
TypeScript

// (C) Copyright 2015 Martin Dougiamas
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
import { Component, ViewChild, Input, OnInit } from '@angular/core';
import { Content } from 'ionic-angular';
import { CoreUserProvider } from '../../providers/user';
import { CoreDomUtilsProvider } from '@providers/utils/dom';
import { CoreSplitViewComponent } from '@components/split-view/split-view';
/**
* Component that displays the list of course participants.
*/
@Component({
selector: 'core-user-participants',
templateUrl: 'participants.html',
})
export class CoreUserParticipantsComponent implements OnInit {
@ViewChild(Content) content: Content;
@ViewChild(CoreSplitViewComponent) splitviewCtrl: CoreSplitViewComponent;
@Input() courseId: number;
participantId: number;
participants = [];
canLoadMore = false;
participantsLoaded = false;
constructor(private userProvider: CoreUserProvider, private domUtils: CoreDomUtilsProvider) { }
/**
* View loaded.
*/
ngOnInit(): void {
// Get first participants.
this.fetchData(true).then(() => {
if (!this.participantId && this.splitviewCtrl.isOn() && this.participants.length > 0) {
// Take first and load it.
this.gotoParticipant(this.participants[0].id);
}
// Add log in Moodle.
this.userProvider.logParticipantsView(this.courseId).catch(() => {
// Ignore errors.
});
}).finally(() => {
this.participantsLoaded = true;
});
}
/**
* Fetch all the data required for the view.
*
* @param {boolean} [refresh] Empty events array first.
* @return {Promise<any>} Resolved when done.
*/
fetchData(refresh: boolean = false): Promise<any> {
const firstToGet = refresh ? 0 : this.participants.length;
return this.userProvider.getParticipants(this.courseId, firstToGet).then((data) => {
if (refresh) {
this.participants = data.participants;
} else {
this.participants = this.participants.concat(data.participants);
}
this.canLoadMore = data.canLoadMore;
}).catch((error) => {
this.domUtils.showErrorModalDefault(error, 'Error loading participants');
this.canLoadMore = false; // Set to false to prevent infinite calls with infinite-loading.
});
}
/**
* Refresh data.
*
* @param {any} refresher Refresher.
*/
refreshParticipants(refresher: any): void {
this.userProvider.invalidateParticipantsList(this.courseId).finally(() => {
this.fetchData(true).finally(() => {
refresher.complete();
});
});
}
/**
* Navigate to a particular user profile.
* @param {number} userId User Id where to navigate.
*/
gotoParticipant(userId: number): void {
this.participantId = userId;
this.splitviewCtrl.push('CoreUserProfilePage', {userId: userId, courseId: this.courseId});
}
}