when drag from node input or output show all possible nodes that you can connect

web/extensions/core/slotDefaults.js

 import { app } from "/scripts/app.js";
-
+import { ComfyWidgets } from "/scripts/widgets.js";
 // Adds defaults for quickly adding nodes with middle click on the input/output
 
 app.registerExtension({
 	name: "Comfy.SlotDefaults",
 	init() {
 		LiteGraph.middle_click_slot_add_default_node = true;
-		LiteGraph.slot_types_default_in = {
-			MODEL: "CheckpointLoaderSimple",
-			LATENT: "EmptyLatentImage",
-			VAE: "VAELoader",
-		};
+	},
+	async beforeRegisterNodeDef(nodeType, nodeData, app) {
+		var nodeId = nodeData.name;
+		var inputs = [];
+		//if (nodeData["input"]["optional"] != undefined) {
+		//	inputs = Object.assign({}, nodeData["input"]["required"], nodeData["input"]["optional"]);
+		//} else {
+		inputs = nodeData["input"]["required"]; //only show required inputs to reduce the mess also not logica to create node with optional inputs
+		//}
+		for (const inputKey in inputs) {
+			var input = (inputs[inputKey]);
+			//make sure input[0] is a string
+			if (typeof input[0] !== "string") continue;
+
+			//	for (const slotKey in inputs[inputKey]) {
+			var type = input[0]
+			if (type in ComfyWidgets) {
+				var customProperties = input[1]
+				//console.log(customProperties)
+				if (!(customProperties?.forceInput)) continue; //ignore widgets that don't force input
+			}
+
+			if (!(type in LiteGraph.slot_types_default_out)) {
+				LiteGraph.slot_types_default_out[type] = ["Reroute"];
+			}
+			if (LiteGraph.slot_types_default_out[type].includes(nodeId)) continue;
+			LiteGraph.slot_types_default_out[type].push(nodeId);
+			//	}
+		}
+
+		var outputs = nodeData["output"];
+		for (const key in outputs) {
+			var type = outputs[key];
+			if (!(type in LiteGraph.slot_types_default_in)) {
+				LiteGraph.slot_types_default_in[type] = ["Reroute"];// ["Reroute", "Primitive"];  primitive doesn't always work :'()
+			}
+			LiteGraph.slot_types_default_in[type].push(nodeId);
+		}
 
-		LiteGraph.slot_types_default_out = {
-			LATENT: "VAEDecode",
-			IMAGE: "SaveImage",
-			CLIP: "CLIPTextEncode",
-		};
 	},
 });