AW6241 ng-18 adopt ng-openlayers

projects/ng-openlayers/src/lib/sources/cluster.component.ts

@@ -0,0 +1,54 @@
+import {
+  AfterContentInit,
+  Component,
+  ContentChild,
+  forwardRef,
+  Host,
+  Input,
+  OnChanges,
+  SimpleChanges,
+} from '@angular/core';
+import { Feature } from 'ol';
+import { Point } from 'ol/geom';
+import { Cluster, Vector } from 'ol/source';
+
+import { LayerVectorComponent } from '../layers/layervector.component';
+import { SourceComponent } from './source.component';
+import { SourceVectorComponent } from './vector.component';
+
+@Component({
+  selector: 'aol-source-cluster',
+  template: ` <ng-content></ng-content> `,
+  providers: [{ provide: SourceComponent, useExisting: forwardRef(() => SourceClusterComponent) }],
+})
+export class SourceClusterComponent extends SourceComponent implements AfterContentInit, OnChanges {
+  @Input()
+  distance: number;
+  @Input()
+  geometryFunction?: (feature: Feature) => Point;
+  @Input()
+  wrapX?: boolean;
+
+  @ContentChild(SourceVectorComponent, { static: false })
+  sourceVectorComponent: SourceVectorComponent;
+
+  instance: Cluster;
+  source: Vector;
+
+  constructor(@Host() layer: LayerVectorComponent) {
+    super(layer);
+  }
+
+  ngAfterContentInit() {
+    this.source = this.sourceVectorComponent.instance;
+
+    this.instance = new Cluster(this);
+    this.host.instance.setSource(this.instance);
+  }
+
+  ngOnChanges(changes: SimpleChanges) {
+    if (this.instance && changes.hasOwnProperty('distance')) {
+      this.instance.setDistance(this.distance);
+    }
+  }
+}