Toggle nodes/containers on and off by tags

src/lib/widgets/ButtonWidget.svelte

@@ -4,6 +4,7 @@
  import { type WidgetLayout } from "$lib/stores/layoutState";
  import { Button } from "@gradio/button";
  import { get, type Writable, writable } from "svelte/store";
+ import { isDisabled } from "./utils"
  export let widget: WidgetLayout | null = null;
  export let isMobile: boolean = false;
  let node: ComfyButtonNode | null = null;
@@ -32,9 +33,9 @@
 
 <div class="wrapper gradio-button">
     {#key $attrsChanged}
-        {#if node !== null}
+        {#if widget !== null && node !== null}
             <Button
-                disabled={widget.attrs.disabled}
+                disabled={isDisabled(widget)}
                 on:click={onClick}
                 variant={widget.attrs.buttonVariant || "primary"}
                 size={widget.attrs.buttonSize === "small" ? "sm" : "lg"}