@hsaadawy/ngx-chat
Version:
74 lines • 10.7 kB
JavaScript
import { Inject, Injectable } from '@angular/core';
import { BehaviorSubject } from 'rxjs';
import { filter } from 'rxjs/operators';
import { CHAT_SERVICE_TOKEN } from './chat-service';
export class ChatWindowState {
constructor(recipient, isCollapsed) {
this.recipient = recipient;
this.isCollapsed = isCollapsed;
}
}
/**
* Used to open chat windows programmatically.
*/
export class ChatListStateService {
constructor(chatService) {
this.chatService = chatService;
this.openChats$ = new BehaviorSubject([]);
this.openTracks$ = new BehaviorSubject([]);
this.chatService.state$
.pipe(filter(newState => newState === 'disconnected'))
.subscribe(() => {
this.openChats$.next([]);
});
this.chatService.contactRequestsReceived$.subscribe(contacts => {
for (const contact of contacts) {
this.openChat(contact);
}
});
}
openChatCollapsed(recipient) {
if (!this.isChatWithRecipientOpen(recipient)) {
const openChats = this.openChats$.getValue();
const chatWindow = new ChatWindowState(recipient, true);
const copyWithNewContact = [chatWindow].concat(openChats);
this.openChats$.next(copyWithNewContact);
}
}
openChat(recipient) {
this.openChatCollapsed(recipient);
this.findChatWindowStateByRecipient(recipient).isCollapsed = false;
}
closeChat(recipient) {
const openChats = this.openChats$.getValue();
const index = this.findChatWindowStateIndexByRecipient(recipient);
if (index >= 0) {
const copyWithoutContact = openChats.slice();
copyWithoutContact.splice(index, 1);
this.openChats$.next(copyWithoutContact);
}
}
openTrack(track) {
this.openTracks$.next(this.openTracks$.getValue().concat([track]));
}
closeTrack(track) {
this.openTracks$.next(this.openTracks$.getValue().filter(s => s !== track));
}
isChatWithRecipientOpen(recipient) {
return this.findChatWindowStateByRecipient(recipient) !== undefined;
}
findChatWindowStateIndexByRecipient(recipient) {
return this.openChats$.getValue()
.findIndex((chatWindowState) => chatWindowState.recipient.equalsBareJid(recipient));
}
findChatWindowStateByRecipient(recipient) {
return this.openChats$.getValue().find(chat => chat.recipient.equalsBareJid(recipient));
}
}
ChatListStateService.decorators = [
{ type: Injectable }
];
ChatListStateService.ctorParameters = () => [
{ type: undefined, decorators: [{ type: Inject, args: [CHAT_SERVICE_TOKEN,] }] }
];
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