number field

src/app/app.component.html

@@ -13,4 +13,16 @@
       <ledbutton topic="led/test4" label="test4"></ledbutton>
     </td>
   </tr>
+  <tr>
+      <td>
+        <app-number-field topic="number/test1"></app-number-field>
+      </td>
+      <td>
+      </td>
+      <td>
+      </td>
+      <td>
+      </td>
+    </tr>
+  
 </table>

src/app/app.module.ts

@@ -6,6 +6,7 @@ import { AppComponent } from './app.component';
 import { LedindicatorComponent } from './ledindicator/ledindicator.component';
 import { OnOffButtonComponent } from './on-off-button/on-off-button.component';
 import { LedButtonGroupComponent } from './led-button-group/led-button-group.component';
+import { NumberFieldComponent } from './number-field/number-field.component';
 
 
 @NgModule({
@@ -13,7 +14,8 @@ import { LedButtonGroupComponent } from './led-button-group/led-button-group.com
     AppComponent,
     LedindicatorComponent,
     OnOffButtonComponent,
-    LedButtonGroupComponent
+    LedButtonGroupComponent,
+    NumberFieldComponent
   ],
   imports: [
     BrowserModule

src/app/number-field/number-field.component.spec.ts

@@ -0,0 +1,25 @@
+import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { NumberFieldComponent } from './number-field.component';
+
+describe('NumberFieldComponent', () => {
+  let component: NumberFieldComponent;
+  let fixture: ComponentFixture<NumberFieldComponent>;
+
+  beforeEach(async(() => {
+    TestBed.configureTestingModule({
+      declarations: [ NumberFieldComponent ]
+    })
+    .compileComponents();
+  }));
+
+  beforeEach(() => {
+    fixture = TestBed.createComponent(NumberFieldComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

src/app/number-field/number-field.component.ts

@@ -0,0 +1,23 @@
+import { Component, Input, OnInit } from '@angular/core';
+import { MqttclientService } from '../mqttclient.service'
+
+@Component({
+  selector: 'app-number-field',
+  template: `
+  <span>{{value}}</span>
+  `
+})
+export class NumberFieldComponent implements OnInit {
+
+  @Input() topic : string
+  value: number
+
+  constructor(private mqttclientService : MqttclientService) { }
+
+  ngOnInit() {
+    this.mqttclientService.register(this.topic, (message: string) => {
+      this.value = parseInt(message)
+    })
+  }
+
+}