Added person selector in webapp.

src/main/webapp/src/app/component/selector/person-selector/person-selector.component.html

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+<div class="loadingWrapper">
+  <div class="loadingOverlay" *ngIf="dataSource.loading$ | async">
+    <mat-spinner class="loadingSpinner"></mat-spinner>
+  </div>
+  <div class="mat-elevation-z2">
+    <table mat-table [dataSource]="dataSource">
+
+      <ng-container matColumnDef="lp">
+        <th mat-header-cell *matHeaderCellDef>L.p.</th>
+        <td mat-cell *matCellDef="let element" class="mat-cell">  {{getElementNumber(element)}}  </td>
+      </ng-container>
+
+      <ng-container matColumnDef="id">
+        <th mat-header-cell *matHeaderCellDef>Id</th>
+        <td mat-cell *matCellDef="let element" class="mat-cell">  {{element.id}}  </td>
+      </ng-container>
+
+      <ng-container matColumnDef="name">
+        <th mat-header-cell *matHeaderCellDef>Imię</th>
+        <td mat-cell *matCellDef="let element" class="mat-cell">  {{element.name}}  </td>
+      </ng-container>
+
+      <ng-container matColumnDef="surname">
+        <th mat-header-cell *matHeaderCellDef>Nazwisko</th>
+        <td mat-cell *matCellDef="let element" class="mat-cell">  {{element.surname}}  </td>
+      </ng-container>
+
+      <ng-container matColumnDef="index">
+        <th mat-header-cell *matHeaderCellDef>Indeks</th>
+        <td mat-cell *matCellDef="let element" class="mat-cell">  {{element?.student?.index}}  </td>
+      </ng-container>
+
+      <ng-container matColumnDef="select">
+        <th mat-header-cell *matHeaderCellDef>Wybierz</th>
+        <td mat-cell *matCellDef="let element" class="mat-cell">
+          <button type="button" mat-icon-button (click)="select(element)">
+            <mat-icon>check</mat-icon>
+          </button>
+        </td>
+      </ng-container>
+
+      <tr mat-header-row *matHeaderRowDef="getDisplayedColumns()"></tr>
+      <tr mat-row *matRowDef="let row; columns: getDisplayedColumns();"></tr>
+    </table>
+  </div>
+</div>
+<button mat-button type="button" (click)="dialogRef.close()">Anuluj</button>

src/main/webapp/src/app/component/selector/person-selector/person-selector.component.spec.ts

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+import { ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { PersonSelectorComponent } from './person-selector.component';
+
+describe('PersonSelectorComponent', () => {
+  let component: PersonSelectorComponent;
+  let fixture: ComponentFixture<PersonSelectorComponent>;
+
+  beforeEach(async () => {
+    await TestBed.configureTestingModule({
+      declarations: [ PersonSelectorComponent ]
+    })
+    .compileComponents();
+
+    fixture = TestBed.createComponent(PersonSelectorComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

src/main/webapp/src/app/component/selector/person-selector/person-selector.component.ts

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+import { Component } from '@angular/core';
+import {Person} from "../../../model/person";
+import {MatDialogRef} from "@angular/material/dialog";
+import {BasicDataSource} from "../../../dataSource/basic-data-source";
+import {AbstractListComponent} from "../../abstract-list.component";
+import {PersonService} from "../../../service/person.service";
+
+@Component({
+  selector: 'app-person-selector',
+  templateUrl: './person-selector.component.html',
+  styleUrls: ['./person-selector.component.sass']
+})
+export class PersonSelectorComponent extends AbstractListComponent<Person, number>{
+
+  dataSource: BasicDataSource<Person, number>;
+  displayedColumns: Map<string, boolean> = new Map<string, boolean>([
+    ['lp', true],
+    ['id', true],
+    ['name', true],
+    ['surname', true],
+    ['index', true],
+    ['select', true],
+  ]);
+
+  constructor(
+    public dialogRef: MatDialogRef<PersonSelectorComponent>,
+    private personService: PersonService
+  ) {
+    super();
+    this.dataSource = new BasicDataSource<Person, number>(personService);
+  }
+
+  select(person: Person) {
+    this.dialogRef.close(person);
+  }
+}