Dropdown implementation, switch refactoring

* Various fixes

* Fix tests

* Dropdown names deduced from pin names

* Remove update callbacks

* Fix double pins issue

* return undefined if not switch

js/element/NodeElement.js

@@ -13,7 +13,6 @@ import Utility from "../Utility.js"
 import VariableAccessNodeTemplate from "../template/node/VariableAccessNodeTemplate.js"
 import VariableConversionNodeTemplate from "../template/node/VariableConversionNodeTemplate.js"
 import VariableOperationNodeTemplate from "../template/node/VariableOperationNodeTemplate.js"
-import UnknownPinEntity from "../entity/UnknownPinEntity.js"
 
 /**
  * @typedef {import("./IDraggableElement.js").DragEvent} DragEvent
@@ -90,7 +89,8 @@ export default class NodeElement extends ISelectableDraggableElement {
         // If selected, it will already drag, also must check if under nested comments, it must drag just once
         if (!this.selected && !this.#commentDragged) {
             this.#commentDragged = true
-            this.addNextUpdatedCallbacks(() => this.#commentDragged = false)
+            this.requestUpdate()
+            this.updateComplete.then(() => this.#commentDragged = false)
             this.addLocation(...e.detail.value)
         }
     }
@@ -193,11 +193,12 @@ export default class NodeElement extends ISelectableDraggableElement {
         }
     }
 
-    getUpdateComplete() {
-        return Promise.all([
-            super.getUpdateComplete(),
-            ...this.getPinElements().map(pin => pin.updateComplete)
-        ]).then(() => true)
+    async getUpdateComplete() {
+        let result = await super.getUpdateComplete()
+        for (const pin of this.getPinElements()) {
+            result &&= await pin.updateComplete
+        }
+        return result
     }
 
     /** @param {NodeElement} commentNode */