Add "clearable" badge

src-ui/src/app/components/common/clearable-badge/clearable-badge.component.ts

@@ -0,0 +1,33 @@
+import { Component, Input, Output, EventEmitter } from '@angular/core'
+
+@Component({
+  selector: 'app-clearable-badge',
+  templateUrl: './clearable-badge.component.html',
+  styleUrls: ['./clearable-badge.component.scss'],
+})
+export class ClearableBadge {
+  constructor() {}
+
+  @Input()
+  number: number
+
+  @Input()
+  selected: boolean
+
+  @Output()
+  cleared: EventEmitter<boolean> = new EventEmitter()
+
+  get active(): boolean {
+    return this.selected || this.number > -1
+  }
+
+  get isNumbered(): boolean {
+    return this.number > -1
+  }
+
+  onClick(event: PointerEvent) {
+    this.cleared.emit(true)
+    event.stopImmediatePropagation()
+    event.preventDefault()
+  }
+}