core&ui: assignment auto complete (#1061)

packages/ui-default/components/autocomplete/AssignSelectAutoComplete.tsx

@@ -0,0 +1,24 @@
+import AutoComplete, { AutoCompleteOptions } from '.';
+import AssignSelectAutoCompleteFC from './components/AssignSelectAutoComplete';
+
+export default class AssignSelectAutoComplete<Multi extends boolean> extends AutoComplete {
+  static DOMAttachKey = 'ucwAssignSelectAutoCompleteInstance';
+
+  constructor($dom, options: AutoCompleteOptions<Multi> = {}) {
+    super($dom, {
+      classes: 'assign-select',
+      component: AssignSelectAutoCompleteFC,
+      props: {
+        multi: true,
+        height: 'auto',
+      },
+      ...options,
+    });
+  }
+
+  value(): string {
+    return this.ref?.getSelectedItemKeys().join(',') ?? this.$dom.val();
+  }
+}
+
+window.Hydro.components.AssignSelectAutoComplete = AssignSelectAutoComplete;