Further subgraph improvements (#6466)

- Prune disconnected widgets on config panel open
- Fix breakage of DOMWidgets on double nest
- Fix self clipping of proxied DOMWidget nodes
- Blacklist cloning of promtoed widget prop

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-6466-Further-subgraph-improvements-29c6d73d365081c8b63dda068486805c)
by [Unito](https://www.unito.io)

src/components/graph/widgets/DomWidget.vue

@@ -143,8 +143,8 @@ onMounted(() => {
     widget.options.selectOn ?? ['focus', 'click'],
     () => {
       const lgCanvas = canvasStore.canvas
-      lgCanvas?.selectNode(widget.node)
-      lgCanvas?.bringToFront(widget.node)
+      lgCanvas?.selectNode(widgetState.widget.node)
+      lgCanvas?.bringToFront(widgetState.widget.node)
     }
   )
 })

src/core/graph/subgraph/SubgraphNode.vue

@@ -17,6 +17,7 @@ import {
   matchesPropertyItem,
   matchesWidgetItem,
   promoteWidget,
+  pruneDisconnected,
   widgetItemToProperty
 } from '@/core/graph/subgraph/proxyWidgetUtils'
 import type { WidgetItem } from '@/core/graph/subgraph/proxyWidgetUtils'
@@ -235,6 +236,7 @@ watchDebounced(
 )
 onMounted(() => {
   setDraggableState()
+  if (activeNode.value) pruneDisconnected(activeNode.value)
 })
 onBeforeUnmount(() => {
   draggableList.value?.dispose()

src/core/graph/subgraph/proxyWidget.ts

@@ -48,9 +48,12 @@ type Overlay = Partial<IBaseWidget> & {
  * on the linked widget
  */
 type ProxyWidget = IBaseWidget & { _overlay: Overlay }
-function isProxyWidget(w: IBaseWidget): w is ProxyWidget {
+export function isProxyWidget(w: IBaseWidget): w is ProxyWidget {
   return (w as { _overlay?: Overlay })?._overlay?.isProxyWidget ?? false
 }
+export function isDisconnectedWidget(w: ProxyWidget) {
+  return w instanceof disconnectedWidget.constructor
+}
 
 export function registerProxyWidgets(canvas: LGraphCanvas) {
   //NOTE: canvasStore hasn't been initialized yet
@@ -167,7 +170,7 @@ function resolveLinkedWidget(
   if (!n) return [undefined, undefined]
   const widget = n.widgets?.find((w: IBaseWidget) => w.name === widgetName)
   //Slightly hacky. Force recursive resolution of nested widgets
-  if (widget instanceof disconnectedWidget.constructor && isProxyWidget(widget))
+  if (widget && isProxyWidget(widget) && isDisconnectedWidget(widget))
     widget.computedHeight = 20
   return [n, widget]
 }

src/core/graph/subgraph/proxyWidgetUtils.ts

@@ -1,5 +1,9 @@
 import { parseProxyWidgets } from '@/core/schemas/proxyWidget'
 import type { ProxyWidgetsProperty } from '@/core/schemas/proxyWidget'
+import {
+  isProxyWidget,
+  isDisconnectedWidget
+} from '@/core/graph/subgraph/proxyWidget'
 import { t } from '@/i18n'
 import type {
   IContextMenuValue,
@@ -163,3 +167,10 @@ export function promoteRecommendedWidgets(subgraphNode: SubgraphNode) {
   subgraphNode.properties.proxyWidgets = proxyWidgets
   subgraphNode.computeSize(subgraphNode.size)
 }
+
+export function pruneDisconnected(subgraphNode: SubgraphNode) {
+  subgraphNode.properties.proxyWidgets = subgraphNode.widgets
+    .filter(isProxyWidget)
+    .filter((w) => !isDisconnectedWidget(w))
+    .map((w) => [w._overlay.nodeId, w._overlay.widgetName])
+}

src/lib/litegraph/src/subgraph/SubgraphNode.ts

@@ -546,6 +546,7 @@ export class SubgraphNode extends LGraphNode implements BaseLGraph {
 
     // Clean up all promoted widgets
     for (const widget of this.widgets) {
+      if ('isProxyWidget' in widget && widget.isProxyWidget) continue
       this.subgraph.events.dispatch('widget-demoted', {
         widget,
         subgraphNode: this

src/lib/litegraph/src/widgets/BaseWidget.ts

@@ -140,6 +140,7 @@ export abstract class BaseWidget<TWidget extends IBaseWidget = IBaseWidget>
       displayValue,
       // @ts-expect-error Prevent naming conflicts with custom nodes.
       labelBaseline,
+      promoted,
       ...safeValues
     } = widget