refactor(aria/combobox): Extend public api with open/close/select methods

Author: adolgachev

src/aria/combobox/combobox.ts

@@ -113,6 +113,21 @@ export class Combobox<V> {
       }
     });
   }
+
+  /** Opens the combobox. */
+  open(nav?: {first?: boolean; last?: boolean; selected?: boolean}) {
+    this._pattern.open(nav);
+  }
+
+  /** Closes the combobox. */
+  close(opts?: {reset: boolean}) {
+    this._pattern.close(opts);
+  }
+
+  /** Selects an item in the combobox popup. */
+  select(opts: {item?: V; commit?: boolean; close?: boolean} = {}) {
+    this._pattern.select(opts);
+  }
 }
 
 @Directive({