Angular + Leaflet map | Dynamic Components into already existing marker

<!DOCTYPE html>
<html>

  <head>
    <base href="." />
    <script type="text/javascript" charset="utf-8">
      window.AngularVersionForThisPlunker = 'latest'
    </script>
    <title>angular playground</title>
    <link rel="stylesheet" href="style.css" />
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/leaflet/1.2.0/leaflet.css" />

    <script src="https://cdnjs.cloudflare.com/ajax/libs/leaflet/1.2.0/leaflet.js"></script>
    <script src="https://unpkg.com/core-js@2.4.1/client/shim.min.js"></script>
    <script src="https://unpkg.com/zone.js/dist/zone.js"></script>
    <script src="https://unpkg.com/zone.js/dist/long-stack-trace-zone.js"></script>
    <script src="https://unpkg.com/reflect-metadata@0.1.3/Reflect.js"></script>
    <script src="https://unpkg.com/systemjs@0.19.31/dist/system.js"></script>
    <script src="config.js"></script>
    <script>
    System.import('app')
      .catch(console.error.bind(console));
  </script>
  </head>

  <body>
    <my-app>
    loading...
  </my-app>
  </body>

</html>

/* Styles go here */

### Angular Starter Plunker - Typescript

var angularVersion;
if(window.AngularVersionForThisPlunker === 'latest'){
  angularVersion = ''; //picks up latest
}
else {
  angularVersion = '@' + window.AngularVersionForThisPlunker;
}

System.config({
  //use typescript for compilation
  transpiler: 'typescript',
  //typescript compiler options
  typescriptOptions: {
    emitDecoratorMetadata: true
  },
  paths: {
    'npm:': 'https://unpkg.com/'
  },
  //map tells the System loader where to look for things
  map: {
    
    'app': './src',
    '@angular/core': 'npm:@angular/core'+ angularVersion + '/bundles/core.umd.js',
    '@angular/common': 'npm:@angular/common' + angularVersion + '/bundles/common.umd.js',
    '@angular/common/http': 'npm:@angular/common' + angularVersion + '/bundles/common-http.umd.js',
    '@angular/compiler': 'npm:@angular/compiler' + angularVersion  + '/bundles/compiler.umd.js',
    '@angular/platform-browser': 'npm:@angular/platform-browser' + angularVersion + '/bundles/platform-browser.umd.js',
    '@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic' + angularVersion + '/bundles/platform-browser-dynamic.umd.js',
    '@angular/http': 'npm:@angular/http' + angularVersion + '/bundles/http.umd.js',
    '@angular/router': 'npm:@angular/router' + angularVersion +'/bundles/router.umd.js',
    '@angular/forms': 'npm:@angular/forms' + angularVersion + '/bundles/forms.umd.js',
    '@angular/animations': 'npm:@angular/animations' + angularVersion + '/bundles/animations.umd.js',
    '@angular/platform-browser/animations': 'npm:@angular/platform-browser' + angularVersion + '/bundles/platform-browser-animations.umd.js',
    '@angular/animations/browser': 'npm:@angular/animations' + angularVersion + '/bundles/animations-browser.umd.js',
    
    '@angular/core/testing': 'npm:@angular/core' + angularVersion + '/bundles/core-testing.umd.js',
    '@angular/common/testing': 'npm:@angular/common' + angularVersion + '/bundles/common-testing.umd.js',
    '@angular/common/http/testing': 'npm:@angular/common' + angularVersion + '/bundles/common-http-testing.umd.js',
    '@angular/compiler/testing': 'npm:@angular/compiler' + angularVersion + '/bundles/compiler-testing.umd.js',
    '@angular/platform-browser/testing': 'npm:@angular/platform-browser' + angularVersion + '/bundles/platform-browser-testing.umd.js',
    '@angular/platform-browser-dynamic/testing': 'npm:@angular/platform-browser-dynamic' + angularVersion + '/bundles/platform-browser-dynamic-testing.umd.js',
    '@angular/http/testing': 'npm:@angular/http' + angularVersion + '/bundles/http-testing.umd.js',
    '@angular/router/testing': 'npm:@angular/router' + angularVersion + '/bundles/router-testing.umd.js',
    'tslib': 'npm:tslib@1.6.1',
    
    'leaflet': 'npm:leaflet@1.2.0/dist/leaflet-src.js',
    '@asymmetrik/angular2-leaflet': 'npm:@asymmetrik/angular2-leaflet@2.2.1/dist/bundles/angular2-leaflet.js',
    'rxjs': 'npm:rxjs',
    'typescript': 'npm:typescript@2.2.1/lib/typescript.js'
  },
  //packages defines our app package
  packages: {
    app: {
      main: './main.ts',
      defaultExtension: 'ts'
    },
    rxjs: {
      defaultExtension: 'js'
    }
  }
});

//main entry point
import {platformBrowserDynamic} from '@angular/platform-browser-dynamic';
import {AppModule} from './app';

platformBrowserDynamic().bootstrapModule(AppModule)

//our root app component
import {Component, NgModule, VERSION} from '@angular/core'
import {BrowserModule} from '@angular/platform-browser'
import { LeafletModule } from '@asymmetrik/angular2-leaflet';
import { FormsModule } from '@angular/forms';
import { MapComponent } from './map.component';
import { PopupComponent } from './popup.component';

@Component({
  selector: 'my-app',
  template: `
    <div>
      <app-map></app-map>
    </div>
  `,
})
export class App {}

@NgModule({
  imports: [ 
    BrowserModule,
    LeafletModule,
    FormsModule
  ],
  declarations: [ 
    App,
    MapComponent,
    PopupComponent
  ],
  bootstrap: [ App ]
})
export class AppModule {}

import {
  AfterViewInit, EmbeddedViewRef,
  Component, ComponentFactoryResolver, Injector, OnInit, ViewChild, ViewContainerRef
} from '@angular/core';
import * as L from 'leaflet';
import {EventsService} from '../events.service';
import {PopupComponent} from './popup.component';
import { LeafletDirective } from '@asymmetrik/angular2-leaflet';

@Component({
  selector: 'app-map',
  template: `
    <div style="height: 300px;"
         #leaflet
         leaflet 
         [leafletOptions]="options"
         [leafletLayers]="layers">
    </div>
    Value from popup {{ data }}
  `,
  entryComponents: [PopupComponent]
})
export class MapComponent implements OnInit, AfterViewInit {
  @ViewChild('leaflet', { read: LeafletDirective }) leaflet;

  data: any;
  
  options: any = {
      layers: [
          L.tileLayer('http://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', { maxZoom: 18, attribution: '...' })
      ],
      zoom: 5,
      center: L.latLng([ 46.879966, -121.726909 ])
  };

  layers: any[];

  eventsData: any = [{
    lat: 46.879966,
    lng: -121.726909,
    iconURL: 'https://angularjs.org/favicon.ico'
    description: 'Angular marker'
  }];
  
  componentRef: any;
  subscription: any;

  constructor(private resolver: ComponentFactoryResolver, private inj: Injector) {}
  
  ngOnInit() {
    this.showEvents();
  }

  showEvents() {
    const markers: any[] = [];


    for (const mapEvent of this.eventsData) {
      markers.push(
        L.marker(
          [mapEvent.lat, mapEvent.lng],
          {
            icon: L.icon({
              iconUrl: mapEvent.iconURL,
              iconSize: [42, 42]
            })
          }
        ).bindPopup(
          L.popup(
            {
              closeButton: true,
              data: mapEvent.description
            }
          ).setContent(
            `<div id="popupHost"></div>`
          ), {
            maxWidth: "auto"
          }
        )
      );
    }

    this.layers = markers;
  }
  
  ngAfterViewInit() {

    this.leaflet.map
      .on('popupopen', (e: any) {
        const popup = e.popup;
        const factory = this.resolver.resolveComponentFactory(PopupComponent);
        this.componentRef = factory.create(this.inj);
        this.componentRef.instance.text = popup.options.data;
        this.subscription = this.componentRef.instance.textChanged.subscribe((val) => {
          this.data = val;
        });
        var host = popup._wrapper.querySelector('#popupHost');
        host.appendChild((this.componentRef.hostView as EmbeddedViewRef<any>).rootNodes[0]);
  
        popup._updateLayout();
  		  popup._updatePosition();
    		popup._adjustPan();
      })
     .on('popupclose', () => {
       this.ngOnDestroy();
     });  
  }
  
  ngDoCheck() {
    if(this.componentRef) {
      this.componentRef.changeDetectorRef.detectChanges();
    }
  }
  
  ngOnDestroy() {
    if (this.componentRef) {
      this.subscription.unsubscribe();
      this.componentRef.destroy();
      this.componentRef = null;
    }
  }



}

import {Component, OnInit, EventEmitter, Output} from '@angular/core';

@Component({
  selector: 'app-popup',
  template: `
    <h2>Popup component</h2>
    <p>{{text}}</p> 
    <input [(ngModel)]="text" (ngModelChange)="fireUpdate($event)">
  `
})
export class PopupComponent {

  text: String;

  @Output() textChanged = new EventEmitter();
  
  
  fireUpdate(val) {
    this.textChanged.emit(val);
  }

}