Copy jslib into Directory Connector [TI-6] (#262)

jslib/angular/src/components/modal/dynamic-modal.component.ts

@@ -0,0 +1,79 @@
+import { ConfigurableFocusTrap, ConfigurableFocusTrapFactory } from "@angular/cdk/a11y";
+import {
+  AfterViewInit,
+  ChangeDetectorRef,
+  Component,
+  ComponentRef,
+  ElementRef,
+  OnDestroy,
+  Type,
+  ViewChild,
+  ViewContainerRef,
+} from "@angular/core";
+
+import { ModalService } from "../../services/modal.service";
+
+import { ModalRef } from "./modal.ref";
+
+@Component({
+  selector: "app-modal",
+  template: "<ng-template #modalContent></ng-template>",
+})
+export class DynamicModalComponent implements AfterViewInit, OnDestroy {
+  componentRef: ComponentRef<any>;
+
+  @ViewChild("modalContent", { read: ViewContainerRef, static: true })
+  modalContentRef: ViewContainerRef;
+
+  childComponentType: Type<any>;
+  setComponentParameters: (component: any) => void;
+
+  private focusTrap: ConfigurableFocusTrap;
+
+  constructor(
+    private modalService: ModalService,
+    private cd: ChangeDetectorRef,
+    private el: ElementRef<HTMLElement>,
+    private focusTrapFactory: ConfigurableFocusTrapFactory,
+    public modalRef: ModalRef
+  ) {}
+
+  ngAfterViewInit() {
+    this.loadChildComponent(this.childComponentType);
+    if (this.setComponentParameters != null) {
+      this.setComponentParameters(this.componentRef.instance);
+    }
+    this.cd.detectChanges();
+
+    this.modalRef.created(this.el.nativeElement);
+    this.focusTrap = this.focusTrapFactory.create(
+      this.el.nativeElement.querySelector(".modal-dialog")
+    );
+    if (this.el.nativeElement.querySelector("[appAutoFocus]") == null) {
+      this.focusTrap.focusFirstTabbableElementWhenReady();
+    }
+  }
+
+  loadChildComponent(componentType: Type<any>) {
+    const componentFactory = this.modalService.resolveComponentFactory(componentType);
+
+    this.modalContentRef.clear();
+    this.componentRef = this.modalContentRef.createComponent(componentFactory);
+  }
+
+  ngOnDestroy() {
+    if (this.componentRef) {
+      this.componentRef.destroy();
+    }
+    this.focusTrap.destroy();
+  }
+
+  close() {
+    this.modalRef.close();
+  }
+
+  getFocus() {
+    const autoFocusEl = this.el.nativeElement.querySelector("[appAutoFocus]") as HTMLElement;
+    autoFocusEl?.focus();
+  }
+}