import { app } from "../../scripts/app.js";
import { mergeIfValid, getWidgetConfig, setWidgetConfig } from "./widgetInputs.js";
// Node that allows you to redirect connections for cleaner graphs
app.registerExtension({
name: "Comfy.RerouteNode",
registerCustomNodes(app) {
class RerouteNode {
constructor() {
if (!this.properties) {
this.properties = {};
}
this.properties.showOutputText = RerouteNode.defaultVisibility;
this.properties.horizontal = false;
this.addInput("", "*");
this.addOutput(this.properties.showOutputText ? "*" : "", "*");
this.onAfterGraphConfigured = function () {
requestAnimationFrame(() => {
this.onConnectionsChange(LiteGraph.INPUT, null, true, null);
});
};
this.onConnectionsChange = function (type, index, connected, link_info) {
this.applyOrientation();
// Prevent multiple connections to different types when we have no input
if (connected && type === LiteGraph.OUTPUT) {
// Ignore wildcard nodes as these will be updated to real types
const types = new Set(this.outputs[0].links.map((l) => app.graph.links[l].type).filter((t) => t !== "*"));
if (types.size > 1) {
const linksToDisconnect = [];
for (let i = 0; i < this.outputs[0].links.length - 1; i++) {
const linkId = this.outputs[0].links[i];
const link = app.graph.links[linkId];
linksToDisconnect.push(link);
}
for (const link of linksToDisconnect) {
const node = app.graph.getNodeById(link.target_id);
node.disconnectInput(link.target_slot);
}
}
}
// Find root input
let currentNode = this;
let updateNodes = [];
let inputType = null;
let inputNode = null;
while (currentNode) {
updateNodes.unshift(currentNode);
const linkId = currentNode.inputs[0].link;
if (linkId !== null) {
const link = app.graph.links[linkId];
if (!link) return;
const node = app.graph.getNodeById(link.origin_id);
const type = node.constructor.type;
if (type === "Reroute") {
if (node === this) {
// We've found a circle
currentNode.disconnectInput(link.target_slot);
currentNode = null;
} else {
// Move the previous node
currentNode = node;
}
} else {
// We've found the end
inputNode = currentNode;
inputType = node.outputs[link.origin_slot]?.type ?? null;
break;
}
} else {
// This path has no input node
currentNode = null;
break;
}
}
// Find all outputs
const nodes = [this];
let outputType = null;
while (nodes.length) {
currentNode = nodes.pop();
const outputs = (currentNode.outputs ? currentNode.outputs[0].links : []) || [];
if (outputs.length) {
for (const linkId of outputs) {
const link = app.graph.links[linkId];
// When disconnecting sometimes the link is still registered
if (!link) continue;
const node = app.graph.getNodeById(link.target_id);
const type = node.constructor.type;
if (type === "Reroute") {
// Follow reroute nodes
nodes.push(node);
updateNodes.push(node);
} else {
// We've found an output
const nodeOutType =
node.inputs && node.inputs[link?.target_slot] && node.inputs[link.target_slot].type
? node.inputs[link.target_slot].type
: null;
if (inputType && inputType !== "*" && nodeOutType !== inputType) {
// The output doesnt match our input so disconnect it
node.disconnectInput(link.target_slot);
} else {
outputType = nodeOutType;
}
}
}
} else {
// No more outputs for this path
}
}
const displayType = inputType || outputType || "*";
const color = LGraphCanvas.link_type_colors[displayType];
let widgetConfig;
let targetWidget;
let widgetType;
// Update the types of each node
for (const node of updateNodes) {
// If we dont have an input type we are always wildcard but we'll show the output type
// This lets you change the output link to a different type and all nodes will update
node.outputs[0].type = inputType || "*";
node.__outputType = displayType;
node.outputs[0].name = node.properties.showOutputText ? displayType : "";
node.size = node.computeSize();
node.applyOrientation();
for (const l of node.outputs[0].links || []) {
const link = app.graph.links[l];
if (link) {
link.color = color;
if (app.configuringGraph) continue;
const targetNode = app.graph.getNodeById(link.target_id);
const targetInput = targetNode.inputs?.[link.target_slot];
if (targetInput?.widget) {
const config = getWidgetConfig(targetInput);
if (!widgetConfig) {
widgetConfig = config[1] ?? {};
widgetType = config[0];
}
if (!targetWidget) {
targetWidget = targetNode.widgets?.find((w) => w.name === targetInput.widget.name);
}
const merged = mergeIfValid(targetInput, [config[0], widgetConfig]);
if (merged.customConfig) {
widgetConfig = merged.customConfig;
}
}
}
}
}
for (const node of updateNodes) {
if (widgetConfig && outputType) {
node.inputs[0].widget = { name: "value" };
setWidgetConfig(node.inputs[0], [widgetType ?? displayType, widgetConfig], targetWidget);
} else {
setWidgetConfig(node.inputs[0], null);
}
}
if (inputNode) {
const link = app.graph.links[inputNode.inputs[0].link];
if (link) {
link.color = color;
}
}
};
this.clone = function () {
const cloned = RerouteNode.prototype.clone.apply(this);
cloned.removeOutput(0);
cloned.addOutput(this.properties.showOutputText ? "*" : "", "*");
cloned.size = cloned.computeSize();
return cloned;
};
// This node is purely frontend and does not impact the resulting prompt so should not be serialized
this.isVirtualNode = true;
}
getExtraMenuOptions(_, options) {
options.unshift(
{
content: (this.properties.showOutputText ? "Hide" : "Show") + " Type",
callback: () => {
this.properties.showOutputText = !this.properties.showOutputText;
if (this.properties.showOutputText) {
this.outputs[0].name = this.__outputType || this.outputs[0].type;
} else {
this.outputs[0].name = "";
}
this.size = this.computeSize();
this.applyOrientation();
app.graph.setDirtyCanvas(true, true);
},
},
{
content: (RerouteNode.defaultVisibility ? "Hide" : "Show") + " Type By Default",
callback: () => {
RerouteNode.setDefaultTextVisibility(!RerouteNode.defaultVisibility);
},
},
{
// naming is inverted with respect to LiteGraphNode.horizontal
// LiteGraphNode.horizontal == true means that
// each slot in the inputs and outputs are layed out horizontally,
// which is the opposite of the visual orientation of the inputs and outputs as a node
content: "Set " + (this.properties.horizontal ? "Horizontal" : "Vertical"),
callback: () => {
this.properties.horizontal = !this.properties.horizontal;
this.applyOrientation();
},
}
);
}
applyOrientation() {
this.horizontal = this.properties.horizontal;
if (this.horizontal) {
// we correct the input position, because LiteGraphNode.horizontal
// doesn't account for title presence
// which reroute nodes don't have
this.inputs[0].pos = [this.size[0] / 2, 0];
} else {
delete this.inputs[0].pos;
}
app.graph.setDirtyCanvas(true, true);
}
computeSize() {
return [
this.properties.showOutputText && this.outputs && this.outputs.length
? Math.max(75, LiteGraph.NODE_TEXT_SIZE * this.outputs[0].name.length * 0.6 + 40)
: 75,
26,
];
}
static setDefaultTextVisibility(visible) {
RerouteNode.defaultVisibility = visible;
if (visible) {
localStorage["Comfy.RerouteNode.DefaultVisibility"] = "true";
} else {
delete localStorage["Comfy.RerouteNode.DefaultVisibility"];
}
}
}
// Load default visibility
RerouteNode.setDefaultTextVisibility(!!localStorage["Comfy.RerouteNode.DefaultVisibility"]);
LiteGraph.registerNodeType(
"Reroute",
Object.assign(RerouteNode, {
title_mode: LiteGraph.NO_TITLE,
title: "Reroute",
collapsable: false,
})
);
RerouteNode.category = "utils";
},
});