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import { ComfyWidgets } from "./widgets.js";
import { ComfyUI } from "./ui.js";
import { api } from "./api.js";
import { defaultGraph } from "./defaultGraph.js";
import { getPngMetadata, importA1111 } from "./pnginfo.js";
class ComfyApp {
/**
* List of {number, batchCount} entries to queue
*/
#queueItems = [];
/**
* If the queue is currently being processed
*/
#processingQueue = false;
constructor() {
this.ui = new ComfyUI(this);
this.extensions = [];
this.nodeOutputs = {};
this.shiftDown = false;
}
/**
* Invoke an extension callback
* @param {string} method The extension callback to execute
* @param {...any} args Any arguments to pass to the callback
* @returns
*/
#invokeExtensions(method, ...args) {
let results = [];
for (const ext of this.extensions) {
if (method in ext) {
try {
results.push(ext[method](...args, this));
} catch (error) {
console.error(
`Error calling extension '${ext.name}' method '${method}'`,
{ error },
{ extension: ext },
{ args }
);
}
}
}
return results;
}
/**
* Invoke an async extension callback
* Each callback will be invoked concurrently
* @param {string} method The extension callback to execute
* @param {...any} args Any arguments to pass to the callback
* @returns
*/
async #invokeExtensionsAsync(method, ...args) {
return await Promise.all(
this.extensions.map(async (ext) => {
if (method in ext) {
try {
return await ext[method](...args, this);
} catch (error) {
console.error(
`Error calling extension '${ext.name}' method '${method}'`,
{ error },
{ extension: ext },
{ args }
);
}
}
})
);
}
/**
* Adds special context menu handling for nodes
* e.g. this adds Open Image functionality for nodes that show images
* @param {*} node The node to add the menu handler
*/
#addNodeContextMenuHandler(node) {
node.prototype.getExtraMenuOptions = function (_, options) {
if (this.imgs) {
// If this node has images then we add an open in new tab item
let img;
if (this.imageIndex != null) {
// An image is selected so select that
img = this.imgs[this.imageIndex];
} else if (this.overIndex != null) {
// No image is selected but one is hovered
img = this.imgs[this.overIndex];
}
if (img) {
options.unshift(
{
content: "Open Image",
callback: () => window.open(img.src, "_blank"),
},
{
content: "Save Image",
callback: () => {
const a = document.createElement("a");
a.href = img.src;
a.setAttribute("download", new URLSearchParams(new URL(img.src).search).get("filename"));
document.body.append(a);
a.click();
requestAnimationFrame(() => a.remove());
},
}
);
}
}
};
}
/**
* Adds Custom drawing logic for nodes
* e.g. Draws images and handles thumbnail navigation on nodes that output images
* @param {*} node The node to add the draw handler
*/
#addDrawBackgroundHandler(node) {
const app = this;
node.prototype.onDrawBackground = function (ctx) {
if (!this.flags.collapsed) {
const output = app.nodeOutputs[this.id + ""];
if (output && output.images) {
if (this.images !== output.images) {
this.images = output.images;
this.imgs = null;
this.imageIndex = null;
Promise.all(
output.images.map((src) => {
return new Promise((r) => {
const img = new Image();
img.onload = () => r(img);
img.onerror = () => r(null);
img.src = "/view?" + new URLSearchParams(src).toString();
});
})
).then((imgs) => {
if (this.images === output.images) {
this.imgs = imgs.filter(Boolean);
if (this.size[1] < 100) {
this.size[1] = 250;
}
app.graph.setDirtyCanvas(true);
}
});
}
}
if (this.imgs && this.imgs.length) {
const canvas = graph.list_of_graphcanvas[0];
const mouse = canvas.graph_mouse;
if (!canvas.pointer_is_down && this.pointerDown) {
if (mouse[0] === this.pointerDown.pos[0] && mouse[1] === this.pointerDown.pos[1]) {
this.imageIndex = this.pointerDown.index;
}
this.pointerDown = null;
}
let w = this.imgs[0].naturalWidth;
let h = this.imgs[0].naturalHeight;
let imageIndex = this.imageIndex;
const numImages = this.imgs.length;
if (numImages === 1 && !imageIndex) {
this.imageIndex = imageIndex = 0;
}
let shiftY;
if (this.imageOffset != null) {
shiftY = this.imageOffset;
} else {
shiftY = this.computeSize()[1];
}
let dw = this.size[0];
let dh = this.size[1];
dh -= shiftY;
if (imageIndex == null) {
let best = 0;
let cellWidth;
let cellHeight;
let cols = 0;
let shiftX = 0;
for (let c = 1; c <= numImages; c++) {
const rows = Math.ceil(numImages / c);
const cW = dw / c;
const cH = dh / rows;
const scaleX = cW / w;
const scaleY = cH / h;
const scale = Math.min(scaleX, scaleY, 1);
const imageW = w * scale;
const imageH = h * scale;
const area = imageW * imageH * numImages;
if (area > best) {
best = area;
cellWidth = imageW;
cellHeight = imageH;
cols = c;
shiftX = c * ((cW - imageW) / 2);
}
}
let anyHovered = false;
this.imageRects = [];
for (let i = 0; i < numImages; i++) {
const img = this.imgs[i];
const row = Math.floor(i / cols);
const col = i % cols;
const x = col * cellWidth + shiftX;
const y = row * cellHeight + shiftY;
if (!anyHovered) {
anyHovered = LiteGraph.isInsideRectangle(
mouse[0],
mouse[1],
x + this.pos[0],
y + this.pos[1],
cellWidth,
cellHeight
);
if (anyHovered) {
this.overIndex = i;
let value = 110;
if (canvas.pointer_is_down) {
if (!this.pointerDown || this.pointerDown.index !== i) {
this.pointerDown = { index: i, pos: [...mouse] };
}
value = 125;
}
ctx.filter = `contrast(${value}%) brightness(${value}%)`;
canvas.canvas.style.cursor = "pointer";
}
}
this.imageRects.push([x, y, cellWidth, cellHeight]);
ctx.drawImage(img, x, y, cellWidth, cellHeight);
ctx.filter = "none";
}
if (!anyHovered) {
this.pointerDown = null;
this.overIndex = null;
}
} else {
// Draw individual
const scaleX = dw / w;
const scaleY = dh / h;
const scale = Math.min(scaleX, scaleY, 1);
w *= scale;
h *= scale;
let x = (dw - w) / 2;
let y = (dh - h) / 2 + shiftY;
ctx.drawImage(this.imgs[imageIndex], x, y, w, h);
const drawButton = (x, y, sz, text) => {
const hovered = LiteGraph.isInsideRectangle(mouse[0], mouse[1], x + this.pos[0], y + this.pos[1], sz, sz);
let fill = "#333";
let textFill = "#fff";
let isClicking = false;
if (hovered) {
canvas.canvas.style.cursor = "pointer";
if (canvas.pointer_is_down) {
fill = "#1e90ff";
isClicking = true;
} else {
fill = "#eee";
textFill = "#000";
}
} else {
this.pointerWasDown = null;
}
ctx.fillStyle = fill;
ctx.beginPath();
ctx.roundRect(x, y, sz, sz, [4]);
ctx.fill();
ctx.fillStyle = textFill;
ctx.font = "12px Arial";
ctx.textAlign = "center";
ctx.fillText(text, x + 15, y + 20);
return isClicking;
};
if (numImages > 1) {
if (drawButton(x + w - 35, y + h - 35, 30, `${this.imageIndex + 1}/${numImages}`)) {
let i = this.imageIndex + 1 >= numImages ? 0 : this.imageIndex + 1;
if (!this.pointerDown || !this.pointerDown.index === i) {
this.pointerDown = { index: i, pos: [...mouse] };
}
}
if (drawButton(x + w - 35, y + 5, 30, `x`)) {
if (!this.pointerDown || !this.pointerDown.index === null) {
this.pointerDown = { index: null, pos: [...mouse] };
}
}
}
}
}
}
};
}
/**
* Adds a handler allowing drag+drop of files onto the window to load workflows
*/
#addDropHandler() {
// Get prompt from dropped PNG or json
document.addEventListener("drop", async (event) => {
event.preventDefault();
event.stopPropagation();
const n = this.dragOverNode;
this.dragOverNode = null;
// Node handles file drop, we dont use the built in onDropFile handler as its buggy
// If you drag multiple files it will call it multiple times with the same file
if (n && n.onDragDrop && (await n.onDragDrop(event))) {
return;
}
await this.handleFile(event.dataTransfer.files[0]);
});
// Always clear over node on drag leave
this.canvasEl.addEventListener("dragleave", async () => {
if (this.dragOverNode) {
this.dragOverNode = null;
this.graph.setDirtyCanvas(false, true);
}
});
// Add handler for dropping onto a specific node
this.canvasEl.addEventListener(
"dragover",
(e) => {
this.canvas.adjustMouseEvent(e);
const node = this.graph.getNodeOnPos(e.canvasX, e.canvasY);
if (node) {
if (node.onDragOver && node.onDragOver(e)) {
this.dragOverNode = node;
// dragover event is fired very frequently, run this on an animation frame
requestAnimationFrame(() => {
this.graph.setDirtyCanvas(false, true);
});
return;
}
}
this.dragOverNode = null;
},
false
);
}
/**
* Adds a handler on paste that extracts and loads workflows from pasted JSON data
*/
#addPasteHandler() {
document.addEventListener("paste", (e) => {
let data = (e.clipboardData || window.clipboardData).getData("text/plain");
let workflow;
try {
data = data.slice(data.indexOf("{"));
workflow = JSON.parse(data);
} catch (err) {
try {
data = data.slice(data.indexOf("workflow\n"));
data = data.slice(data.indexOf("{"));
workflow = JSON.parse(data);
} catch (error) {}
}
if (workflow && workflow.version && workflow.nodes && workflow.extra) {
this.loadGraphData(workflow);
}
});
}
/**
* Handle mouse
*
* Move group by header
*/
#addProcessMouseHandler() {
const self = this;
const origProcessMouseDown = LGraphCanvas.prototype.processMouseDown;
LGraphCanvas.prototype.processMouseDown = function(e) {
const res = origProcessMouseDown.apply(this, arguments);
this.selected_group_moving = false;
if (this.selected_group && !this.selected_group_resizing) {
var font_size =
this.selected_group.font_size || LiteGraph.DEFAULT_GROUP_FONT_SIZE;
var height = font_size * 1.4;
// Move group by header
if (LiteGraph.isInsideRectangle(e.canvasX, e.canvasY, this.selected_group.pos[0], this.selected_group.pos[1], this.selected_group.size[0], height)) {
this.selected_group_moving = true;
}
}
return res;
}
const origProcessMouseMove = LGraphCanvas.prototype.processMouseMove;
LGraphCanvas.prototype.processMouseMove = function(e) {
const orig_selected_group = this.selected_group;
if (this.selected_group && !this.selected_group_resizing && !this.selected_group_moving) {
this.selected_group = null;
}
const res = origProcessMouseMove.apply(this, arguments);
if (orig_selected_group && !this.selected_group_resizing && !this.selected_group_moving) {
this.selected_group = orig_selected_group;
}
return res;
};
}
/**
* Handle keypress
*
* Ctrl + M mute/unmute selected nodes
*/
#addProcessKeyHandler() {
const self = this;
const origProcessKey = LGraphCanvas.prototype.processKey;
LGraphCanvas.prototype.processKey = function(e) {
const res = origProcessKey.apply(this, arguments);
if (res === false) {
return res;
}
if (!this.graph) {
return;
}
var block_default = false;
if (e.target.localName == "input") {
return;
}
if (e.type == "keydown") {
// Ctrl + M mute/unmute
if (e.keyCode == 77 && e.ctrlKey) {
if (this.selected_nodes) {
for (var i in this.selected_nodes) {
if (this.selected_nodes[i].mode === 2) { // never
this.selected_nodes[i].mode = 0; // always
} else {
this.selected_nodes[i].mode = 2; // never
}
}
}
block_default = true;
}
}
this.graph.change();
if (block_default) {
e.preventDefault();
e.stopImmediatePropagation();
return false;
}
return res;
};
}
/**
* Draws group header bar
*/
#addDrawGroupsHandler() {
const self = this;
const origDrawGroups = LGraphCanvas.prototype.drawGroups;
LGraphCanvas.prototype.drawGroups = function(canvas, ctx) {
if (!this.graph) {
return;
}
var groups = this.graph._groups;
ctx.save();
ctx.globalAlpha = 0.7 * this.editor_alpha;
for (var i = 0; i < groups.length; ++i) {
var group = groups[i];
if (!LiteGraph.overlapBounding(this.visible_area, group._bounding)) {
continue;
} //out of the visible area
ctx.fillStyle = group.color || "#335";
ctx.strokeStyle = group.color || "#335";
var pos = group._pos;
var size = group._size;
ctx.globalAlpha = 0.25 * this.editor_alpha;
ctx.beginPath();
var font_size =
group.font_size || LiteGraph.DEFAULT_GROUP_FONT_SIZE;
ctx.rect(pos[0] + 0.5, pos[1] + 0.5, size[0], font_size * 1.4);
ctx.fill();
ctx.globalAlpha = this.editor_alpha;
}
ctx.restore();
const res = origDrawGroups.apply(this, arguments);
return res;
}
}
/**
* Draws node highlights (executing, drag drop) and progress bar
*/
#addDrawNodeHandler() {
const origDrawNodeShape = LGraphCanvas.prototype.drawNodeShape;
const self = this;
LGraphCanvas.prototype.drawNodeShape = function (node, ctx, size, fgcolor, bgcolor, selected, mouse_over) {
const res = origDrawNodeShape.apply(this, arguments);
let color = null;
if (node.id === +self.runningNodeId) {
color = "#0f0";
} else if (self.dragOverNode && node.id === self.dragOverNode.id) {
color = "dodgerblue";
}
if (color) {
const shape = node._shape || node.constructor.shape || LiteGraph.ROUND_SHAPE;
ctx.lineWidth = 1;
ctx.globalAlpha = 0.8;
ctx.beginPath();
if (shape == LiteGraph.BOX_SHAPE)
ctx.rect(-6, -6 + LiteGraph.NODE_TITLE_HEIGHT, 12 + size[0] + 1, 12 + size[1] + LiteGraph.NODE_TITLE_HEIGHT);
else if (shape == LiteGraph.ROUND_SHAPE || (shape == LiteGraph.CARD_SHAPE && node.flags.collapsed))
ctx.roundRect(
-6,
-6 - LiteGraph.NODE_TITLE_HEIGHT,
12 + size[0] + 1,
12 + size[1] + LiteGraph.NODE_TITLE_HEIGHT,
this.round_radius * 2
);
else if (shape == LiteGraph.CARD_SHAPE)
ctx.roundRect(
-6,
-6 + LiteGraph.NODE_TITLE_HEIGHT,
12 + size[0] + 1,
12 + size[1] + LiteGraph.NODE_TITLE_HEIGHT,
this.round_radius * 2,
2
);
else if (shape == LiteGraph.CIRCLE_SHAPE)
ctx.arc(size[0] * 0.5, size[1] * 0.5, size[0] * 0.5 + 6, 0, Math.PI * 2);
ctx.strokeStyle = color;
ctx.stroke();
ctx.strokeStyle = fgcolor;
ctx.globalAlpha = 1;
if (self.progress) {
ctx.fillStyle = "green";
ctx.fillRect(0, 0, size[0] * (self.progress.value / self.progress.max), 6);
ctx.fillStyle = bgcolor;
}
}
return res;
};
const origDrawNode = LGraphCanvas.prototype.drawNode;
LGraphCanvas.prototype.drawNode = function (node, ctx) {
var editor_alpha = this.editor_alpha;
if (node.mode === 2) { // never
this.editor_alpha = 0.4;
}
const res = origDrawNode.apply(this, arguments);
this.editor_alpha = editor_alpha;
return res;
};
}
/**
* Handles updates from the API socket
*/
#addApiUpdateHandlers() {
api.addEventListener("status", ({ detail }) => {
this.ui.setStatus(detail);
});
api.addEventListener("reconnecting", () => {
this.ui.dialog.show("Reconnecting...");
});
api.addEventListener("reconnected", () => {
this.ui.dialog.close();
});
api.addEventListener("progress", ({ detail }) => {
this.progress = detail;
this.graph.setDirtyCanvas(true, false);
});
api.addEventListener("executing", ({ detail }) => {
this.progress = null;
this.runningNodeId = detail;
this.graph.setDirtyCanvas(true, false);
});
api.addEventListener("executed", ({ detail }) => {
this.nodeOutputs[detail.node] = detail.output;
const node = this.graph.getNodeById(detail.node);
if (node?.onExecuted) {
node.onExecuted(detail.output);
}
});
api.init();
}
#addKeyboardHandler() {
window.addEventListener("keydown", (e) => {
this.shiftDown = e.shiftKey;
// Queue prompt using ctrl or command + enter
if ((e.ctrlKey || e.metaKey) && (e.key === "Enter" || e.keyCode === 13 || e.keyCode === 10)) {
this.queuePrompt(e.shiftKey ? -1 : 0);
}
});
window.addEventListener("keyup", (e) => {
this.shiftDown = e.shiftKey;
});
}
/**
* Loads all extensions from the API into the window
*/
async #loadExtensions() {
const extensions = await api.getExtensions();
for (const ext of extensions) {
try {
await import(ext);
} catch (error) {
console.error("Error loading extension", ext, error);
}
}
}
/**
* Set up the app on the page
*/
async setup() {
await this.#loadExtensions();
// Create and mount the LiteGraph in the DOM
const canvasEl = (this.canvasEl = Object.assign(document.createElement("canvas"), { id: "graph-canvas" }));
canvasEl.tabIndex = "1";
document.body.prepend(canvasEl);
this.#addProcessMouseHandler();
this.#addProcessKeyHandler();
this.graph = new LGraph();
const canvas = (this.canvas = new LGraphCanvas(canvasEl, this.graph));
this.ctx = canvasEl.getContext("2d");
LiteGraph.release_link_on_empty_shows_menu = true;
LiteGraph.alt_drag_do_clone_nodes = true;
this.graph.start();
function resizeCanvas() {
canvasEl.width = canvasEl.offsetWidth;
canvasEl.height = canvasEl.offsetHeight;
canvas.draw(true, true);
}
// Ensure the canvas fills the window
resizeCanvas();
window.addEventListener("resize", resizeCanvas);
await this.#invokeExtensionsAsync("init");
await this.registerNodes();
// Load previous workflow
let restored = false;
try {
const json = localStorage.getItem("workflow");
if (json) {
const workflow = JSON.parse(json);
this.loadGraphData(workflow);
restored = true;
}
} catch (err) {
console.error("Error loading previous workflow", err);
}
// We failed to restore a workflow so load the default
if (!restored) {
this.loadGraphData();
}
// Save current workflow automatically
setInterval(() => localStorage.setItem("workflow", JSON.stringify(this.graph.serialize())), 1000);
this.#addDrawNodeHandler();
this.#addDrawGroupsHandler();
this.#addApiUpdateHandlers();
this.#addDropHandler();
this.#addPasteHandler();
this.#addKeyboardHandler();
await this.#invokeExtensionsAsync("setup");
}
/**
* Registers nodes with the graph
*/
async registerNodes() {
const app = this;
// Load node definitions from the backend
const defs = await api.getNodeDefs();
await this.#invokeExtensionsAsync("addCustomNodeDefs", defs);
// Generate list of known widgets
const widgets = Object.assign(
{},
ComfyWidgets,
...(await this.#invokeExtensionsAsync("getCustomWidgets")).filter(Boolean)
);
// Register a node for each definition
for (const nodeId in defs) {
const nodeData = defs[nodeId];
const node = Object.assign(
function ComfyNode() {
var inputs = nodeData["input"]["required"];
if (nodeData["input"]["optional"] != undefined){
inputs = Object.assign({}, nodeData["input"]["required"], nodeData["input"]["optional"])
}
const config = { minWidth: 1, minHeight: 1 };
for (const inputName in inputs) {
const inputData = inputs[inputName];
const type = inputData[0];
if(inputData[1]?.forceInput) {
this.addInput(inputName, type);
} else {
if (Array.isArray(type)) {
// Enums
Object.assign(config, widgets.COMBO(this, inputName, inputData, app) || {});
} else if (`${type}:${inputName}` in widgets) {
// Support custom widgets by Type:Name
Object.assign(config, widgets[`${type}:${inputName}`](this, inputName, inputData, app) || {});
} else if (type in widgets) {
// Standard type widgets
Object.assign(config, widgets[type](this, inputName, inputData, app) || {});
} else {
// Node connection inputs
this.addInput(inputName, type);
}
}
}
for (const o in nodeData["output"]) {
const output = nodeData["output"][o];
const outputName = nodeData["output_name"][o] || output;
this.addOutput(outputName, output);
}
const s = this.computeSize();
s[0] = Math.max(config.minWidth, s[0] * 1.5);
s[1] = Math.max(config.minHeight, s[1]);
this.size = s;
this.serialize_widgets = true;
app.#invokeExtensionsAsync("nodeCreated", this);
},
{
title: nodeData.name,
comfyClass: nodeData.name,
}
);
node.prototype.comfyClass = nodeData.name;
this.#addNodeContextMenuHandler(node);
this.#addDrawBackgroundHandler(node, app);
await this.#invokeExtensionsAsync("beforeRegisterNodeDef", node, nodeData);
LiteGraph.registerNodeType(nodeId, node);
node.category = nodeData.category;
}
await this.#invokeExtensionsAsync("registerCustomNodes");
}
/**
* Populates the graph with the specified workflow data
* @param {*} graphData A serialized graph object
*/
loadGraphData(graphData) {
this.clean();
if (!graphData) {
graphData = structuredClone(defaultGraph);
}
// Patch T2IAdapterLoader to ControlNetLoader since they are the same node now
for (let n of graphData.nodes) {
if (n.type == "T2IAdapterLoader") n.type = "ControlNetLoader";
}
this.graph.configure(graphData);
for (const node of this.graph._nodes) {
const size = node.computeSize();
size[0] = Math.max(node.size[0], size[0]);
size[1] = Math.max(node.size[1], size[1]);
node.size = size;
if (node.widgets) {
// If you break something in the backend and want to patch workflows in the frontend
// This is the place to do this
for (let widget of node.widgets) {
if (node.type == "KSampler" || node.type == "KSamplerAdvanced") {
if (widget.name == "sampler_name") {
if (widget.value.startsWith("sample_")) {
widget.value = widget.value.slice(7);
}
}
}
}
}
this.#invokeExtensions("loadedGraphNode", node);
}
}
/**
* Converts the current graph workflow for sending to the API
* @returns The workflow and node links
*/
async graphToPrompt() {
const workflow = this.graph.serialize();
const output = {};
// Process nodes in order of execution
for (const node of this.graph.computeExecutionOrder(false)) {
const n = workflow.nodes.find((n) => n.id === node.id);
if (node.isVirtualNode) {
// Don't serialize frontend only nodes but let them make changes
if (node.applyToGraph) {
node.applyToGraph(workflow);
}
continue;
}
if (node.mode === 2) {
// Don't serialize muted nodes
continue;
}
const inputs = {};
const widgets = node.widgets;
// Store all widget values
if (widgets) {
for (const i in widgets) {
const widget = widgets[i];
if (!widget.options || widget.options.serialize !== false) {
inputs[widget.name] = widget.serializeValue ? await widget.serializeValue(n, i) : widget.value;
}
}
}
// Store all node links
for (let i in node.inputs) {
let parent = node.getInputNode(i);
if (parent) {
let link = node.getInputLink(i);
while (parent && parent.isVirtualNode) {
link = parent.getInputLink(link.origin_slot);
if (link) {
parent = parent.getInputNode(link.origin_slot);
} else {
parent = null;
}
}
if (link) {
inputs[node.inputs[i].name] = [String(link.origin_id), parseInt(link.origin_slot)];
}
}
}
output[String(node.id)] = {
inputs,
class_type: node.comfyClass,
};
}
// Remove inputs connected to removed nodes
for (const o in output) {
for (const i in output[o].inputs) {
if (Array.isArray(output[o].inputs[i])
&& output[o].inputs[i].length === 2
&& !output[output[o].inputs[i][0]]) {
delete output[o].inputs[i];
}
}
}
return { workflow, output };
}
async queuePrompt(number, batchCount = 1) {
this.#queueItems.push({ number, batchCount });
// Only have one action process the items so each one gets a unique seed correctly
if (this.#processingQueue) {
return;
}
this.#processingQueue = true;
try {
while (this.#queueItems.length) {
({ number, batchCount } = this.#queueItems.pop());
for (let i = 0; i < batchCount; i++) {
const p = await this.graphToPrompt();
try {
await api.queuePrompt(number, p);
} catch (error) {
this.ui.dialog.show(error.response || error.toString());
break;
}
for (const n of p.workflow.nodes) {
const node = graph.getNodeById(n.id);
if (node.widgets) {
for (const widget of node.widgets) {
// Allow widgets to run callbacks after a prompt has been queued
// e.g. random seed after every gen
if (widget.afterQueued) {
widget.afterQueued();
}
}
}
}
this.canvas.draw(true, true);
await this.ui.queue.update();
}
}
} finally {
this.#processingQueue = false;
}
}
/**
* Loads workflow data from the specified file
* @param {File} file
*/
async handleFile(file) {
if (file.type === "image/png") {
const pngInfo = await getPngMetadata(file);
if (pngInfo) {
if (pngInfo.workflow) {
this.loadGraphData(JSON.parse(pngInfo.workflow));
} else if (pngInfo.parameters) {
importA1111(this.graph, pngInfo.parameters);
}
}
} else if (file.type === "application/json" || file.name.endsWith(".json")) {
const reader = new FileReader();
reader.onload = () => {
this.loadGraphData(JSON.parse(reader.result));
};
reader.readAsText(file);
}
}
registerExtension(extension) {
if (!extension.name) {
throw new Error("Extensions must have a 'name' property.");
}
if (this.extensions.find((ext) => ext.name === extension.name)) {
throw new Error(`Extension named '${extension.name}' already registered.`);
}
this.extensions.push(extension);
}
/**
* Refresh combo list on whole nodes
*/
async refreshComboInNodes() {
const defs = await api.getNodeDefs();
for(let nodeNum in this.graph._nodes) {
const node = this.graph._nodes[nodeNum];
const def = defs[node.type];
for(const widgetNum in node.widgets) {
const widget = node.widgets[widgetNum]
if(widget.type == "combo" && def["input"]["required"][widget.name] !== undefined) {
widget.options.values = def["input"]["required"][widget.name][0];
if(!widget.options.values.includes(widget.value)) {
widget.value = widget.options.values[0];
}
}
}
}
}
/**
* Clean current state
*/
clean() {
this.nodeOutputs = {};
}
}
export const app = new ComfyApp();
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