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/template/pin/EnumPinTemplate.js

@@ -0,0 +1,60 @@
+import { html } from "lit"
+import IInputPinTemplate from "./IInputPinTemplate.js"
+
+/**
+ * @typedef {import("../../element/DropdownElement.js").default} DropdownElement
+ * @typedef {import("../../element/PinElement.js").AnyValue} AnyValue
+ * @typedef {import("../../entity/EnumEntity.js").default} EnumEntity
+ * @typedef {import("lit").PropertyValues} PropertyValues
+ */
+/**
+ * @template {AnyValue} T
+ * @typedef {import("../../element/PinElement.js").default<T>} PinElement
+ */
+
+/** @extends IInputPinTemplate<EnumEntity> */
+export default class EnumPinTemplate extends IInputPinTemplate {
+
+    static saveEachInputChange = true // Otherwise save only on focus out
+
+    /** @type {DropdownElement} */
+    #dropdownElement
+
+    #dropdownEntries = []
+
+    setup() {
+        super.setup()
+        const enumEntries = this.element.nodeElement.entity.EnumEntries
+        if (enumEntries) {
+            this.#dropdownEntries = enumEntries.map(k => [
+                k,
+                this.element.nodeElement.getPinEntities().find(pinEntity => k === pinEntity.PinName)
+                    ?.PinFriendlyName.toString()
+                ?? k
+            ])
+            this.element.requestUpdate()
+        }
+    }
+
+    renderInput() {
+        const entity = this.element.nodeElement.entity
+        return html`
+            <ueb-dropdown
+                class="ueb-pin-input"
+                .options="${this.#dropdownEntries}"
+                .selected="${this.element.defaultValue.value}"
+            >
+            </ueb-dropdown>
+        `
+    }
+
+    /** @param {PropertyValues} changedProperties */
+    firstUpdated(changedProperties) {
+        super.firstUpdated(changedProperties)
+        this.#dropdownElement = this.element.querySelector("ueb-dropdown")
+    }
+
+    getInputs() {
+        return [this.#dropdownElement.getValue()]
+    }
+}