63 lines
2.3 KiB
TypeScript
63 lines
2.3 KiB
TypeScript
import { HttpClient } from '@angular/common/http';
|
|
import { Component, HostListener, OnInit, ViewChild } from '@angular/core';
|
|
import { MatSort, MatSortable, MatSortModule } from '@angular/material/sort';
|
|
import { MatTableDataSource, MatTableModule } from '@angular/material/table';
|
|
import { Layer } from 'src/app/models/layer.model';
|
|
import { MatInputModule } from '@angular/material/input';
|
|
import { MatFormFieldModule } from '@angular/material/form-field';
|
|
import { RouterLink } from '@angular/router';
|
|
import { MatButtonModule } from '@angular/material/button';
|
|
import { MatGridListModule } from '@angular/material/grid-list';
|
|
|
|
@Component({
|
|
selector: 'app-layers-list',
|
|
templateUrl: './layers-list.component.html',
|
|
styleUrls: ['./layers-list.component.scss'],
|
|
standalone: true,
|
|
imports: [MatGridListModule, MatButtonModule, RouterLink, MatFormFieldModule, MatInputModule, MatTableModule, MatSortModule]
|
|
})
|
|
export class LayersListComponent implements OnInit {
|
|
displayedColumns = ['number', 'name', 'source'];
|
|
dataSource!: MatTableDataSource<Layer>;
|
|
|
|
@ViewChild(MatSort) sort!: MatSort;
|
|
|
|
start: number = 0;
|
|
limit: number = 50;
|
|
end: number = this.limit + this.start;
|
|
loadingInProgress: boolean = false;
|
|
|
|
constructor(
|
|
private _http: HttpClient,
|
|
) { }
|
|
|
|
@HostListener('document:scroll', ['$event'])
|
|
public async onScroll(event: any) {
|
|
if (event.target.offsetHeight + event.target.scrollTop >= event.target.scrollHeight - 1 && !this.loadingInProgress) {
|
|
this.loadingInProgress = true;
|
|
let data: Layer[] = await Layer.getList(this._http, this.start, this.limit);
|
|
this.dataSource.data = this.dataSource.data.concat(data);
|
|
this.start = this.end;
|
|
this.end = this.limit + this.start;
|
|
setTimeout(() => {
|
|
this.loadingInProgress = false;
|
|
}, 500);
|
|
}
|
|
}
|
|
async ngOnInit() {
|
|
this.dataSource = new MatTableDataSource(await Layer.getList(this._http, this.start, this.limit));
|
|
this.dataSource.sort = this.sort;
|
|
this.dataSource.sort.sort({ id: 'number', start: 'desc' } as MatSortable);
|
|
this.start = this.end;
|
|
this.end = this.limit + this.start;
|
|
}
|
|
applyFilter(event: Event) {
|
|
const filterValue = (event.target as HTMLInputElement).value;
|
|
this.dataSource.filter = filterValue.trim().toLowerCase();
|
|
}
|
|
trackByUid(index : number, item : Layer) {
|
|
return item.id;
|
|
}
|
|
}
|
|
|