zgo/src/app/header/header.component.ts

import  {Component, OnInit, OnDestroy} from '@angular/core';
import {FullnodeService} from '../fullnode.service';
import { UserService } from '../user.service';
import {Subscription, Observable} from 'rxjs';

import {Owner} from '../owner.model';

@Component({
	selector: 'app-header',
	templateUrl: './header.component.html',
	styleUrls: ['./header.component.css']
})

export class HeaderComponent implements OnInit, OnDestroy {

	public height = 0;
	private owner: Owner= {_id:'', address: 'none', name:''};
	private session: string | null = '';
	public heightUpdate: Observable<number>;
	public ownerUpdate: Observable<Owner>;

	constructor(
		public fullnodeService: FullnodeService,
		public userService: UserService
	){
		this.heightUpdate = fullnodeService.heightUpdate;
		this.ownerUpdate = userService.ownerUpdate;
	}


	ngOnInit(){
		this.ownerUpdate.subscribe((owner) => {
			this.owner = owner;
		});
		console.log('Header owner', this.owner);
	}

	ngOnDestroy(){
	}

	shortenZaddr() {
		var addr = this.owner.address;
		var end = addr.length;
		var last = end - 5;
		return addr.substring(0,5).concat('...').concat(addr.substring(last, end));
	}

}