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demo.component.ts
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demo.component.ts
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import {Component, OnInit} from '@angular/core';
import {ConversationListItem} from "../src/models/conversation-list-item.model";
import {ConversationDetailItem} from "../src/models/conversation-detail.model";
import {Message} from "../src/models/message.model";
import {Author} from "../src/models/author.model";
import {PagingLoadPerformer} from "../src/classes/paging-load-performer";
import {Observable} from "rxjs";
const _ = require('lodash');
const conversations = require("./demo.conversation.list.json");
const messages = require("./demo.messages.list.json");
@Component({
selector: 'ngm-demo-app',
template: require('./demo.component.html')
})
export class DemoComponent implements OnInit{
conversationListItems: ConversationListItem[] = [];
conversationDetailItem: ConversationDetailItem;
user: Author = {
id: 'userA',
name: 'userA'
};
loadPerformer: PagingLoadPerformer<Message>;
conversationLoader: PagingLoadPerformer<ConversationListItem>;
activeItemId: string;
ngOnInit(): void {
this.conversationLoader = {
total: -1,
performLoad: (start, limit) => {
return new Observable((observer)=>{
this.conversationLoader.total = conversations.length;
let end = start + limit;
let page = conversations.slice(start, end).map(function (item) {
return {
id: item.id,
title: item.title,
subtitle: item.lastMessage,
update: item.update,
info: item.info,
image: item.image
};
});
setTimeout(()=>{
observer.next(page);
}, 100);
setTimeout(() => {
observer.complete();
}, 200);
});
}
};
this.loadPerformer = {
total: -1,
performLoad: (start, limit) => {
return new Observable((observer)=>{
this.loadPerformer.total = messages.length;
let end = start + limit;
let page = messages.slice(start, end).map(function (item) {
return {
id: item.id,
text: item.text,
insert: item.insert,
update: item.update,
image: item.image,
read: item.read,
author: {
id: item.ownerId,
name: item.ownerId
}
};
});
setTimeout(()=>{
observer.next(page);
},1000);
setTimeout(() => {
observer.complete();
}, 2000);
});
}
};
this.conversationDetailItem = conversations[0];
this.activeItemId = this.conversationDetailItem.id;
}
}