JS: Move JavaScript to commandbar subdirectory

assets/commandbar/js/setHandler.js

@@ -0,0 +1,32 @@
+class SetEvent extends Event {
+    #option;
+    #newValue;
+
+    constructor(option, newValue) {
+        super("setOption")
+        this.#option = option;
+        this.#newValue = newValue;
+    }
+
+    get option() {
+        return this.#option;
+    }
+
+    get newValue() {
+        return this.#newValue;
+    }
+}
+
+export class SetOptionHandler {
+    get name() {
+        return "set";
+    }
+
+    execute(command, commandBar) {
+        for (const param of command.parameters) {
+            const setEvent = new SetEvent(param.name.valueOf(), param.value.valueOf());
+            commandBar.dispatchEvent(setEvent);
+        }
+        return true;
+    }
+}