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StableLlama-ComfyUI-basic_d…/web/js/dynamicnode.js
T

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JavaScript

/**
* ComfyUI basic data handling.
* Copyright (C) 2025 StableLlama
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* Purpose: Manage dynamic input nodes in ComfyUI.
* Inspired by cozy_ex_dynamic
*/
import { app } from "../../../scripts/app.js";
const TypeSlot = {
Input: 1,
Output: 2
};
const TypeSlotEvent = {
Connect: true,
Disconnect: false
};
app.registerExtension({
name: 'Basic data handling: dynamic input',
async beforeRegisterNodeDef(nodeType, nodeData, app) {
// Filter: Only process nodes with class names starting with "Basic data handling:"
if (!nodeType.comfyClass.startsWith('Basic data handling:')) {
return;
}
const combinedInputData = {
...nodeData?.input?.required ?? {},
...nodeData?.input?.optional ?? {}
}
const combinedInputDataOrder = [
...nodeData?.input_order?.required ?? [],
...nodeData?.input_order?.optional ?? []
];
/** Array of (generic) dynamic inputs. */
const dynamicInputs = [];
/** Array of groups of (generic) dynamic inputs. */
const dynamicInputGroups = [];
for (const name of combinedInputDataOrder) {
const dynamic = combinedInputData[name][1]?._dynamic;
const dynamicGroup = combinedInputData[name][1]?._dynamicGroup ?? 0;
if (dynamic) {
let matcher;
switch (dynamic) {
case 'number':
matcher = new RegExp(`^(${name.replace(/\d*$/, '')})(\\d+)$`);
break;
case 'letter':
matcher = new RegExp(`^()([a-zA-Z])$`);
break;
default:
continue;
}
const baseName = name.match(matcher)?.[1] ?? name;
const dynamicType = combinedInputData[name][0];
if (dynamicInputGroups[dynamicGroup] === undefined) {
dynamicInputGroups[dynamicGroup] = [];
}
dynamicInputGroups[dynamicGroup].push(
dynamicInputs.length
)
dynamicInputs.push({name, baseName, matcher, dynamic, dynamicType, dynamicGroup});
}
}
if (dynamicInputs.length === 0) {
return;
}
/**
* Utility: Check if an input is dynamic.
* @param {string} inputName - Name of the input to check.
*/
const isDynamicInput = (inputName) =>
dynamicInputs.some((di) => di.matcher.test(inputName));
/**
* Utility: Update inputs' slot indices after reordering.
* @param {Array} inputs - List of inputs for the node.
* @param {Object} graph - Graph containing the node.
*/
const updateSlotIndices = (inputs, graph) => {
inputs.forEach((input, index) => {
input.slot_index = index;
if (input.link !== null) {
const link = graph._links.get(input.link);
if (link)
link.target_slot = index;
else
console.error(`Input ${index} has an invalid link.`);
}
});
};
// Override onConfigure: Ensure dynamic inputs are continuously ordered
const onConfigure = nodeType.prototype.onConfigure;
nodeType.prototype.onConfigure = function() {
const result = onConfigure?.apply(this, arguments);
let lastDynamicIdx = -1
for (let idx = 0; idx < this.inputs.length; idx++) {
const input = this.inputs[idx];
const isDynamic = isDynamicInput(input.name);
if (isDynamic) {
if (lastDynamicIdx < 0 || lastDynamicIdx === idx - 1) {
lastDynamicIdx = idx;
} else {
// non-continuous dynamic inputs -> move up
for (let i = idx-1; i > lastDynamicIdx; i--) {
this.swapInputs(i, i + 1);
}
lastDynamicIdx++;
}
}
}
return result;
}
// Add helper method to insert input at a specific position
nodeType.prototype.addInputAtPosition = function (name, type, position) {
console.warn("Adding input at position:", name, type, position);
this.addInput(name, type); // Add new input
const newInput = this.inputs.pop(); // Fetch the newly added input (last item)
this.inputs.splice(position, 0, newInput); // Place it at the desired position
updateSlotIndices(this.inputs, this.graph); // Update indices
return newInput;
};
// flag to prevent loops. It is ok to be "global" as the code is not
// running in parallel.
let isProcessingConnection = false;
// Override onConnectionsChange: Handle connections for dynamic inputs
const onConnectionsChange = nodeType.prototype.onConnectionsChange;
nodeType.prototype.onConnectionsChange = function (type, slotIndex, isConnected, link, ioSlot) {
const result = onConnectionsChange?.apply(this, arguments);
if (type !== TypeSlot.Input || isProcessingConnection || !isDynamicInput(this.inputs[slotIndex].name)) {
return result;
}
isProcessingConnection = true;
try {
// Get dynamic input slots
const dynamicSlots = [];
const dynamicGroupCount = [];
const dynamicGroupConnected = [];
for (const [index, input] of this.inputs.entries()) {
const isDynamic = isDynamicInput(input.name);
if (isDynamic) {
const connected = input.link !== null;
const dynamicGroup = (() => {
// Find the dynamicGroup by matching the baseName with input name
for (const di of dynamicInputs) {
if (input.name.startsWith(di.baseName)) {
return di.dynamicGroup;
}
}
return undefined;
})();
if (dynamicGroup in dynamicGroupCount) {
if (input.name.startsWith(dynamicInputs[dynamicInputGroups[dynamicGroup][0]].baseName)) {
dynamicGroupConnected[dynamicGroup][dynamicGroupCount[dynamicGroup]] ||= connected;
dynamicGroupCount[dynamicGroup]++;
}
} else {
dynamicGroupCount[dynamicGroup] = 1;
dynamicGroupConnected[dynamicGroup] = [connected];
}
dynamicSlots.push({
index,
name: input.name,
connected,
isDynamic,
dynamicGroup,
dynamicGroupCount: dynamicGroupCount[dynamicGroup]
});
}
}
// Handle connection event
if (isConnected === TypeSlotEvent.Connect) {
const hasEmptyDynamic = dynamicGroupConnected[0].some(dgc => !dgc);
if (!hasEmptyDynamic) {
// No empty slot - add a new one after the last dynamic input
const lastDynamicIdx = Math.max(...dynamicSlots.map((slot) => slot.index), -1);
let insertPosition = lastDynamicIdx + 1;
let inputInRange = true;
for (const groupMember of dynamicInputGroups[dynamicInputs[0].dynamicGroup]) {
const baseName = dynamicInputs[groupMember].baseName;
const dynamicType = dynamicInputs[groupMember].dynamicType;
let newName;
if (dynamicInputs[0].dynamic === 'letter') {
if (dynamicSlots.length >= 26) {
inputInRange = false;
}
// For letter type, use the next letter in sequence
newName = String.fromCharCode(97 + dynamicSlots.length); // 97 is ASCII for 'a'
} else {
// For number type, use baseName + index as before
newName = `${baseName}${dynamicSlots.length}`;
}
if (inputInRange) {
// Insert the new empty input at the correct position
this.addInputAtPosition(newName, dynamicType, insertPosition++);
// Renumber inputs after addition
this.renumberDynamicInputs(baseName, dynamicInputs, dynamicInputs[0].dynamic);
}
}
}
} else if (isConnected === TypeSlotEvent.Disconnect) {
let foundEmtpyGroup = -1;
let inGroup = -1;
let countInGroup = 0;
for (let idx = 0; idx < this.inputs.length; idx++) {
const input = this.inputs[idx];
const isDynamic = isDynamicInput(input.name);
let hasEmptyDynamic = true;
if (isDynamic) {
for (const [i, dIG] of dynamicInputGroups.entries()) {
if (input.name.startsWith(dynamicInputs[dIG[0]].baseName)) {
inGroup = i;
break;
}
}
if (inGroup === -1) {
continue;
}
for (let i = 0; i < dynamicInputGroups[inGroup].length; i++) {
if (this.inputs[idx+i].name.startsWith(dynamicInputs[dynamicInputGroups[inGroup][i]].baseName)) {
hasEmptyDynamic &&= this.inputs[idx+i].link === null;
} else {
console.error("Bad dynamic group input count!");
debugger;
}
}
if (hasEmptyDynamic) {
if (foundEmtpyGroup !== -1) {
// only remove when we have more than one empty group
for (let i = 0; i < dynamicInputGroups[inGroup].length; i++) {
this.removeInput(idx);
}
} else {
foundEmtpyGroup = idx;
}
} else {
if (foundEmtpyGroup !== -1) {
for (let i = 0; i < dynamicInputGroups[inGroup].length; i++) {
this.swapInputs(foundEmtpyGroup + i, idx + i);
}
foundEmtpyGroup = idx;
}
}
inGroup = -1;
}
}
for (const groupMember of dynamicInputGroups[dynamicInputs[0].dynamicGroup]) {
const baseName = dynamicInputs[groupMember].baseName;
this.renumberDynamicInputs(baseName, dynamicInputs, dynamicInputs[0].dynamic);
}
}
this.setDirtyCanvas(true, true);
} catch (e) {
console.error(e);
debugger;
alert(e);
} finally {
isProcessingConnection = false;
}
return result;
};
// Method to swap two inputs in the "this.inputs" array by their indices
nodeType.prototype.swapInputs = function(indexA, indexB) {
// Validate indices
if (
indexA < 0 || indexB < 0 ||
indexA >= this.inputs.length ||
indexB >= this.inputs.length ||
indexA === indexB
) {
console.warn("Invalid input indices for swapping:", indexA, indexB);
return;
}
// Swap the inputs in the array
[this.inputs[indexA], this.inputs[indexB]] = [this.inputs[indexB], this.inputs[indexA]];
updateSlotIndices(this.inputs, this.graph); // Refresh indices
// Redraw the node to ensure the graph updates properly
// -> not needed as the calling method must do it!
this.setDirtyCanvas(true, true);
};
// Add method to safely renumber dynamic inputs without breaking connections
nodeType.prototype.renumberDynamicInputs = function(baseName, dynamicInputs, dynamic) {
// Get current dynamic inputs info
const dynamicInputInfo = [];
for (let i = 0; i < this.inputs.length; i++) {
const input = this.inputs[i];
const isDynamic = isDynamicInput(input.name);
if (isDynamic && input.name.startsWith(baseName)) {
dynamicInputInfo.push({
index: i,
name: input.name,
connected: input.link !== null
});
}
}
// Just rename the inputs in place - don't remove/add to keep connections intact
for (let i = 0; i < dynamicInputInfo.length; i++) {
const info = dynamicInputInfo[i];
const newName = dynamic === "number" ? `${baseName}${i}` : String.fromCharCode(97 + i); // 97 is ASCII for 'a'
if (this.inputs[info.index].name !== newName) {
this.inputs[info.index].name = newName;
this.inputs[info.index].localized_name = newName;
}
}
};
}
});