Randomize seed in a hackish way

src/lib/api.ts

@@ -116,7 +116,7 @@ export default class ComfyAPI extends EventTarget {
                         this.dispatchEvent(new CustomEvent("progress", { detail: msg.data }));
                         break;
                     case "executing":
-                        this.dispatchEvent(new CustomEvent("executing", { detail: msg.data.node }));
+                        this.dispatchEvent(new CustomEvent("executing", { detail: msg.data }));
                         break;
                     case "executed":
                         this.dispatchEvent(new CustomEvent("executed", { detail: msg.data }));

src/lib/components/ComfyApp.ts

@@ -206,6 +206,8 @@ export default class ComfyApp {
     private registerNodeTypeOverrides() {
         ComfyApp.node_type_overrides["SaveImage"] = nodes.ComfySaveImageNode;
         ComfyApp.node_type_overrides["PreviewImage"] = nodes.ComfyPreviewImageNode;
+        ComfyApp.node_type_overrides["KSampler"] = nodes.ComfyKSamplerNode;
+        ComfyApp.node_type_overrides["KSamplerAdvanced"] = nodes.ComfyKSamplerAdvancedNode;
     }
 
     private registerWidgetTypeOverrides() {
@@ -386,7 +388,11 @@ export default class ComfyApp {
         });
 
         this.api.addEventListener("executing", ({ detail }: CustomEvent) => {
-            queueState.executingUpdated(detail);
+            queueState.executingUpdated(detail.node);
+            const node = this.lGraph.getNodeById(detail.node) as ComfyGraphNode;
+            if (node?.onExecuting) {
+                node.onExecuting();
+            }
             this.lGraph.setDirtyCanvas(true, false);
         });
 

src/lib/nodes/ComfyGraphNode.ts

@@ -10,5 +10,6 @@ export default class ComfyGraphNode extends LGraphNode {
      */
     virtualWidgets: ComfyWidget[] = [];
 
+    onExecuting?(): void;
     onExecuted?(output: any): void;
 }

src/lib/nodes/ComfyKSamplerNodes.ts

@@ -0,0 +1,34 @@
+import { get } from 'svelte/store';
+import ComfyGraphNode from "./ComfyGraphNode";
+import widgetState from "$lib/stores/widgetState"
+
+/*
+ * Autorefreshes seed (until bangs/main inlets are implemented)
+ */
+class ComfyBaseKSamplerNode extends ComfyGraphNode {
+    constructor(title?: any) {
+        super(title)
+    }
+
+    override onExecuting() {
+        console.log(this);
+        const widget = widgetState.findWidgetByName(this.id, "seed")
+        if (!widget)
+            return;
+
+        // TODO cleanup&remove
+		let min = widget.widget.options.min;
+		let max = widget.widget.options.max;
+		// limit to something that javascript can handle
+		max = Math.min(1125899906842624, max);
+		min = Math.max(-1125899906842624, min);
+		const range = (max - min) / (widget.widget.options.step);
+        const v = Math.floor(Math.floor(Math.random() * range) * (widget.widget.options.step) + min);
+
+        widget.widget.value = v;
+        widgetState.widgetStateChanged(this.id, widget.widget);
+    }
+}
+
+export class ComfyKSamplerNode extends ComfyBaseKSamplerNode {}
+export class ComfyKSamplerAdvancedNode extends ComfyBaseKSamplerNode {}

src/lib/nodes/index.ts

@@ -1,2 +1,3 @@
 export { default as ComfyReroute } from "./ComfyReroute"
 export { ComfySaveImageNode, ComfyPreviewImageNode } from "./ComfyImageNodes"
+export { ComfyKSamplerNode, ComfyKSamplerAdvancedNode } from "./ComfyKSamplerNodes"

src/lib/stores/widgetState.ts

@@ -34,7 +34,8 @@ type WidgetStateOps = {
     nodeAdded: (node: LGraphNode) => void,
     nodeRemoved: (node: LGraphNode) => void,
     configureFinished: (graph: LGraph) => void,
-    widgetStateChanged: (widget: ComfyWidget<any, any>) => void,
+    widgetStateChanged: (nodeId: number, widget: IWidget<any, any>) => void,
+    findWidgetByName: (nodeId: number, name: string) => WidgetUIState | null,
     clear: () => void,
 }
 
@@ -78,9 +79,9 @@ function nodeRemoved(node: LGraphNode) {
     store.set(state)
 }
 
-function widgetStateChanged(widget: ComfyWidget<any, any>) {
+function widgetStateChanged(nodeId: number, widget: IWidget<any, any>) {
     const state = get(store)
-    const entries = state[widget.node.id]
+    const entries = state[nodeId]
     if (entries) {
         let widgetState = entries.find(e => e.widget === widget);
         if (widgetState) {
@@ -116,6 +117,15 @@ function configureFinished(graph: LGraph) {
     store.set(state)
 }
 
+function findWidgetByName(nodeId: number, name: string): WidgetUIState | null {
+    let state = get(store);
+
+    if (!(nodeId in state))
+        return null;
+
+    return state[nodeId].find((v) => v.widget.name === name);
+}
+
 const widgetStateStore: WritableWidgetStateStore =
 {
     ...store,
@@ -123,6 +133,7 @@ const widgetStateStore: WritableWidgetStateStore =
     nodeRemoved,
     widgetStateChanged,
     configureFinished,
+    findWidgetByName,
     clear
 }
 export default widgetStateStore;

src/lib/widgets/ComfyWidget.ts

@@ -26,7 +26,7 @@ export default abstract class ComfyWidget<T = any, V = any> implements IWidget<T
 
     setValue(value: V) {
         this.value = value;
-        widgetState.widgetStateChanged(this);
+        widgetState.widgetStateChanged(this.node.id, this);
     }
 
     draw?(ctx: CanvasRenderingContext2D, node: LGraphNode, width: number, posY: number, height: number): void;

src/lib/widgets/RangeWidget.svelte

@@ -6,10 +6,13 @@
  let itemValue: WidgetUIStateStore | null = null;
  let option: number | null = null;
 
- $: if (item && !option) {
+ $: if (item) {
-     if (!itemValue)
      itemValue = item.value;
-     option = get(item.value)
+     updateOption(); // don't react on option
+ }
+
+ function updateOption() {
+     option = get(itemValue);
  }
 
  function onRelease(e: Event) {