ComfyUI/web/scripts/app.js
comfyanonymous 9b93b920be Add CheckpointSave node to save checkpoints.
The created checkpoints contain workflow metadata that can be loaded by
dragging them on top of the UI or loading them with the "Load" button.

Checkpoints will be saved in fp16 or fp32 depending on the format ComfyUI
is using for inference on your hardware. To force fp32 use: --force-fp32

Anything that patches the model weights like merging or loras will be
saved.

The output directory is currently set to: output/checkpoints but that might
change in the future.
2023-06-26 12:22:27 -04:00

1536 lines
41 KiB
JavaScript

import { ComfyWidgets } from "./widgets.js";
import { ComfyUI, $el } from "./ui.js";
import { api } from "./api.js";
import { defaultGraph } from "./defaultGraph.js";
import { getPngMetadata, importA1111, getLatentMetadata } from "./pnginfo.js";
/**
* @typedef {import("types/comfy").ComfyExtension} ComfyExtension
*/
export class ComfyApp {
/**
* List of entries to queue
* @type {{number: number, batchCount: number}[]}
*/
#queueItems = [];
/**
* If the queue is currently being processed
* @type {boolean}
*/
#processingQueue = false;
/**
* Content Clipboard
* @type {serialized node object}
*/
static clipspace = null;
static clipspace_invalidate_handler = null;
static open_maskeditor = null;
static clipspace_return_node = null;
constructor() {
this.ui = new ComfyUI(this);
/**
* List of extensions that are registered with the app
* @type {ComfyExtension[]}
*/
this.extensions = [];
/**
* Stores the execution output data for each node
* @type {Record<string, any>}
*/
this.nodeOutputs = {};
/**
* Stores the preview image data for each node
* @type {Record<string, Image>}
*/
this.nodePreviewImages = {};
/**
* If the shift key on the keyboard is pressed
* @type {boolean}
*/
this.shiftDown = false;
}
getPreviewFormatParam() {
let preview_format = this.ui.settings.getSettingValue("Comfy.PreviewFormat");
if(preview_format)
return `&preview=${preview_format}`;
else
return "";
}
static isImageNode(node) {
return node.imgs || (node && node.widgets && node.widgets.findIndex(obj => obj.name === 'image') >= 0);
}
static onClipspaceEditorSave() {
if(ComfyApp.clipspace_return_node) {
ComfyApp.pasteFromClipspace(ComfyApp.clipspace_return_node);
}
}
static onClipspaceEditorClosed() {
ComfyApp.clipspace_return_node = null;
}
static copyToClipspace(node) {
var widgets = null;
if(node.widgets) {
widgets = node.widgets.map(({ type, name, value }) => ({ type, name, value }));
}
var imgs = undefined;
var orig_imgs = undefined;
if(node.imgs != undefined) {
imgs = [];
orig_imgs = [];
for (let i = 0; i < node.imgs.length; i++) {
imgs[i] = new Image();
imgs[i].src = node.imgs[i].src;
orig_imgs[i] = imgs[i];
}
}
var selectedIndex = 0;
if(node.imageIndex) {
selectedIndex = node.imageIndex;
}
ComfyApp.clipspace = {
'widgets': widgets,
'imgs': imgs,
'original_imgs': orig_imgs,
'images': node.images,
'selectedIndex': selectedIndex,
'img_paste_mode': 'selected' // reset to default im_paste_mode state on copy action
};
ComfyApp.clipspace_return_node = null;
if(ComfyApp.clipspace_invalidate_handler) {
ComfyApp.clipspace_invalidate_handler();
}
}
static pasteFromClipspace(node) {
if(ComfyApp.clipspace) {
// image paste
if(ComfyApp.clipspace.imgs && node.imgs) {
if(node.images && ComfyApp.clipspace.images) {
if(ComfyApp.clipspace['img_paste_mode'] == 'selected') {
node.images = [ComfyApp.clipspace.images[ComfyApp.clipspace['selectedIndex']]];
}
else {
node.images = ComfyApp.clipspace.images;
}
if(app.nodeOutputs[node.id + ""])
app.nodeOutputs[node.id + ""].images = node.images;
}
if(ComfyApp.clipspace.imgs) {
// deep-copy to cut link with clipspace
if(ComfyApp.clipspace['img_paste_mode'] == 'selected') {
const img = new Image();
img.src = ComfyApp.clipspace.imgs[ComfyApp.clipspace['selectedIndex']].src;
node.imgs = [img];
node.imageIndex = 0;
}
else {
const imgs = [];
for(let i=0; i<ComfyApp.clipspace.imgs.length; i++) {
imgs[i] = new Image();
imgs[i].src = ComfyApp.clipspace.imgs[i].src;
node.imgs = imgs;
}
}
}
}
if(node.widgets) {
if(ComfyApp.clipspace.images) {
const clip_image = ComfyApp.clipspace.images[ComfyApp.clipspace['selectedIndex']];
const index = node.widgets.findIndex(obj => obj.name === 'image');
if(index >= 0) {
if(node.widgets[index].type != 'image' && typeof node.widgets[index].value == "string" && clip_image.filename) {
node.widgets[index].value = (clip_image.subfolder?clip_image.subfolder+'/':'') + clip_image.filename + (clip_image.type?` [${clip_image.type}]`:'');
}
else {
node.widgets[index].value = clip_image;
}
}
}
if(ComfyApp.clipspace.widgets) {
ComfyApp.clipspace.widgets.forEach(({ type, name, value }) => {
const prop = Object.values(node.widgets).find(obj => obj.type === type && obj.name === name);
if (prop && prop.type != 'button') {
if(prop.type != 'image' && typeof prop.value == "string" && value.filename) {
prop.value = (value.subfolder?value.subfolder+'/':'') + value.filename + (value.type?` [${value.type}]`:'');
}
else {
prop.value = value;
prop.callback(value);
}
}
});
}
}
app.graph.setDirtyCanvas(true);
}
}
/**
* Invoke an extension callback
* @param {keyof ComfyExtension} 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: () => {
let url = new URL(img.src);
url.searchParams.delete('preview');
window.open(url, "_blank")
},
},
{
content: "Save Image",
callback: () => {
const a = document.createElement("a");
let url = new URL(img.src);
url.searchParams.delete('preview');
a.href = url;
a.setAttribute("download", new URLSearchParams(url.search).get("filename"));
document.body.append(a);
a.click();
requestAnimationFrame(() => a.remove());
},
}
);
}
}
// prevent conflict of clipspace content
if(!ComfyApp.clipspace_return_node) {
options.push({
content: "Copy (Clipspace)",
callback: (obj) => { ComfyApp.copyToClipspace(this); }
});
if(ComfyApp.clipspace != null) {
options.push({
content: "Paste (Clipspace)",
callback: () => { ComfyApp.pasteFromClipspace(this); }
});
}
if(ComfyApp.isImageNode(this)) {
options.push({
content: "Open in MaskEditor",
callback: (obj) => {
ComfyApp.copyToClipspace(this);
ComfyApp.clipspace_return_node = this;
ComfyApp.open_maskeditor();
}
});
}
}
};
}
#addNodeKeyHandler(node) {
const app = this;
const origNodeOnKeyDown = node.prototype.onKeyDown;
node.prototype.onKeyDown = function(e) {
if (origNodeOnKeyDown && origNodeOnKeyDown.apply(this, e) === false) {
return false;
}
if (this.flags.collapsed || !this.imgs || this.imageIndex === null) {
return;
}
let handled = false;
if (e.key === "ArrowLeft" || e.key === "ArrowRight") {
if (e.key === "ArrowLeft") {
this.imageIndex -= 1;
} else if (e.key === "ArrowRight") {
this.imageIndex += 1;
}
this.imageIndex %= this.imgs.length;
if (this.imageIndex < 0) {
this.imageIndex = this.imgs.length + this.imageIndex;
}
handled = true;
} else if (e.key === "Escape") {
this.imageIndex = null;
handled = true;
}
if (handled === true) {
e.preventDefault();
e.stopImmediatePropagation();
return false;
}
}
}
/**
* 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;
function getImageTop(node) {
let shiftY;
if (node.imageOffset != null) {
shiftY = node.imageOffset;
} else {
if (node.widgets?.length) {
const w = node.widgets[node.widgets.length - 1];
shiftY = w.last_y;
if (w.computeSize) {
shiftY += w.computeSize()[1] + 4;
} else {
shiftY += LiteGraph.NODE_WIDGET_HEIGHT + 4;
}
} else {
shiftY = node.computeSize()[1];
}
}
return shiftY;
}
node.prototype.setSizeForImage = function () {
if (this.inputHeight) {
this.setSize(this.size);
return;
}
const minHeight = getImageTop(this) + 220;
if (this.size[1] < minHeight) {
this.setSize([this.size[0], minHeight]);
}
};
node.prototype.onDrawBackground = function (ctx) {
if (!this.flags.collapsed) {
let imgURLs = []
let imagesChanged = false
const output = app.nodeOutputs[this.id + ""];
if (output && output.images) {
if (this.images !== output.images) {
this.images = output.images;
imagesChanged = true;
imgURLs = imgURLs.concat(output.images.map(params => {
return "/view?" + new URLSearchParams(params).toString() + app.getPreviewFormatParam();
}))
}
}
const preview = app.nodePreviewImages[this.id + ""]
if (this.preview !== preview) {
this.preview = preview
imagesChanged = true;
if (preview != null) {
imgURLs.push(preview);
}
}
if (imagesChanged) {
this.imageIndex = null;
if (imgURLs.length > 0) {
Promise.all(
imgURLs.map((src) => {
return new Promise((r) => {
const img = new Image();
img.onload = () => r(img);
img.onerror = () => r(null);
img.src = src
});
})
).then((imgs) => {
if ((!output || this.images === output.images) && (!preview || this.preview === preview)) {
this.imgs = imgs.filter(Boolean);
this.setSizeForImage?.();
app.graph.setDirtyCanvas(true);
}
});
}
else {
this.imgs = null;
}
}
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;
}
const shiftY = getImageTop(this);
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;
}
// Dragging from Chrome->Firefox there is a file but its a bmp, so ignore that
if (event.dataTransfer.files.length && event.dataTransfer.files[0].type !== "image/bmp") {
await this.handleFile(event.dataTransfer.files[0]);
} else {
// Try loading the first URI in the transfer list
const validTypes = ["text/uri-list", "text/x-moz-url"];
const match = [...event.dataTransfer.types].find((t) => validTypes.find(v => t === v));
if (match) {
const uri = event.dataTransfer.getData(match)?.split("\n")?.[0];
if (uri) {
await this.handleFile(await (await fetch(uri)).blob());
}
}
}
});
// 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);
const nodeErrors = self.lastPromptError?.node_errors[node.id];
let color = null;
let lineWidth = 1;
if (node.id === +self.runningNodeId) {
color = "#0f0";
} else if (self.dragOverNode && node.id === self.dragOverNode.id) {
color = "dodgerblue";
}
else if (self.lastPromptError != null && nodeErrors?.errors) {
color = "red";
lineWidth = 2;
}
else if (self.lastExecutionError && +self.lastExecutionError.node_id === node.id) {
color = "#f0f";
lineWidth = 2;
}
if (color) {
const shape = node._shape || node.constructor.shape || LiteGraph.ROUND_SHAPE;
ctx.lineWidth = lineWidth;
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, this.round_radius * 2, 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 && node.id === +self.runningNodeId) {
ctx.fillStyle = "green";
ctx.fillRect(0, 0, size[0] * (self.progress.value / self.progress.max), 6);
ctx.fillStyle = bgcolor;
}
// Highlight inputs that failed validation
if (nodeErrors) {
ctx.lineWidth = 2;
ctx.strokeStyle = "red";
for (const error of nodeErrors.errors) {
if (error.extra_info && error.extra_info.input_name) {
const inputIndex = node.findInputSlot(error.extra_info.input_name)
if (inputIndex !== -1) {
let pos = node.getConnectionPos(true, inputIndex);
ctx.beginPath();
ctx.arc(pos[0] - node.pos[0], pos[1] - node.pos[1], 12, 0, 2 * Math.PI, false)
ctx.stroke();
}
}
}
}
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);
delete this.nodePreviewImages[this.runningNodeId]
});
api.addEventListener("executed", ({ detail }) => {
this.nodeOutputs[detail.node] = detail.output;
const node = this.graph.getNodeById(detail.node);
if (node) {
if (node.onExecuted)
node.onExecuted(detail.output);
}
});
api.addEventListener("execution_start", ({ detail }) => {
this.runningNodeId = null;
this.lastExecutionError = null
});
api.addEventListener("execution_error", ({ detail }) => {
this.lastExecutionError = detail;
const formattedError = this.#formatExecutionError(detail);
this.ui.dialog.show(formattedError);
this.canvas.draw(true, true);
});
api.addEventListener("b_preview", ({ detail }) => {
const id = this.runningNodeId
if (id == null)
return;
const blob = detail
const blobUrl = URL.createObjectURL(blob)
this.nodePreviewImages[id] = [blobUrl]
});
api.init();
}
#addKeyboardHandler() {
window.addEventListener("keydown", (e) => {
this.shiftDown = e.shiftKey;
});
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 mainCanvas = document.createElement("canvas")
mainCanvas.style.touchAction = "none"
const canvasEl = (this.canvasEl = Object.assign(mainCanvas, { 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.registerNodesFromDefs(defs);
await this.#invokeExtensionsAsync("registerCustomNodes");
}
async registerNodesFromDefs(defs) {
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;
const outputShape = nodeData["output_is_list"][o] ? LiteGraph.GRID_SHAPE : LiteGraph.CIRCLE_SHAPE ;
this.addOutput(outputName, output, { shape: outputShape });
}
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.display_name || nodeData.name,
comfyClass: nodeData.name,
}
);
node.prototype.comfyClass = nodeData.name;
this.#addNodeContextMenuHandler(node);
this.#addDrawBackgroundHandler(node, app);
this.#addNodeKeyHandler(node);
await this.#invokeExtensionsAsync("beforeRegisterNodeDef", node, nodeData);
LiteGraph.registerNodeType(nodeId, node);
node.category = nodeData.category;
}
}
/**
* Populates the graph with the specified workflow data
* @param {*} graphData A serialized graph object
*/
loadGraphData(graphData) {
this.clean();
let reset_invalid_values = false;
if (!graphData) {
graphData = structuredClone(defaultGraph);
reset_invalid_values = true;
}
const missingNodeTypes = [];
for (let n of graphData.nodes) {
// Patch T2IAdapterLoader to ControlNetLoader since they are the same node now
if (n.type == "T2IAdapterLoader") n.type = "ControlNetLoader";
// Find missing node types
if (!(n.type in LiteGraph.registered_node_types)) {
missingNodeTypes.push(n.type);
}
}
try {
this.graph.configure(graphData);
} catch (error) {
let errorHint = [];
// Try extracting filename to see if it was caused by an extension script
const filename = error.fileName || (error.stack || "").match(/(\/extensions\/.*\.js)/)?.[1];
const pos = (filename || "").indexOf("/extensions/");
if (pos > -1) {
errorHint.push(
$el("span", { textContent: "This may be due to the following script:" }),
$el("br"),
$el("span", {
style: {
fontWeight: "bold",
},
textContent: filename.substring(pos),
})
);
}
// Show dialog to let the user know something went wrong loading the data
this.ui.dialog.show(
$el("div", [
$el("p", { textContent: "Loading aborted due to error reloading workflow data" }),
$el("pre", {
style: { padding: "5px", backgroundColor: "rgba(255,0,0,0.2)" },
textContent: error.toString(),
}),
$el("pre", {
style: {
padding: "5px",
color: "#ccc",
fontSize: "10px",
maxHeight: "50vh",
overflow: "auto",
backgroundColor: "rgba(0,0,0,0.2)",
},
textContent: error.stack || "No stacktrace available",
}),
...errorHint,
]).outerHTML
);
return;
}
for (const node of this.graph._nodes) {
const size = node.computeSize();
size[0] = Math.max(node.size[0], size[0]);
size[1] = Math.max(node.size[1], size[1]);
node.size = size;
if (node.widgets) {
// If you break something in the backend and want to patch workflows in the frontend
// This is the place to do this
for (let widget of node.widgets) {
if (node.type == "KSampler" || node.type == "KSamplerAdvanced") {
if (widget.name == "sampler_name") {
if (widget.value.startsWith("sample_")) {
widget.value = widget.value.slice(7);
}
}
}
if (node.type == "KSampler" || node.type == "KSamplerAdvanced" || node.type == "PrimitiveNode") {
if (widget.name == "control_after_generate") {
if (widget.value === true) {
widget.value = "randomize";
} else if (widget.value === false) {
widget.value = "fixed";
}
}
}
if (reset_invalid_values) {
if (widget.type == "combo") {
if (!widget.options.values.includes(widget.value) && widget.options.values.length > 0) {
widget.value = widget.options.values[0];
}
}
}
}
}
this.#invokeExtensions("loadedGraphNode", node);
}
if (missingNodeTypes.length) {
this.ui.dialog.show(
`When loading the graph, the following node types were not found: <ul>${Array.from(new Set(missingNodeTypes)).map(
(t) => `<li>${t}</li>`
).join("")}</ul>Nodes that have failed to load will show as red on the graph.`
);
}
}
/**
* 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 };
}
#formatPromptError(error) {
if (error == null) {
return "(unknown error)"
}
else if (typeof error === "string") {
return error;
}
else if (error.stack && error.message) {
return error.toString()
}
else if (error.response) {
let message = error.response.error.message;
if (error.response.error.details)
message += ": " + error.response.error.details;
for (const [nodeID, nodeError] of Object.entries(error.response.node_errors)) {
message += "\n" + nodeError.class_type + ":"
for (const errorReason of nodeError.errors) {
message += "\n - " + errorReason.message + ": " + errorReason.details
}
}
return message
}
return "(unknown error)"
}
#formatExecutionError(error) {
if (error == null) {
return "(unknown error)"
}
const traceback = error.traceback.join("")
const nodeId = error.node_id
const nodeType = error.node_type
return `Error occurred when executing ${nodeType}:\n\n${error.exception_message}\n\n${traceback}`
}
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;
this.lastPromptError = null;
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) {
const formattedError = this.#formatPromptError(error)
this.ui.dialog.show(formattedError);
if (error.response) {
this.lastPromptError = error.response;
this.canvas.draw(true, true);
}
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);
} else if (file.name?.endsWith(".latent") || file.name?.endsWith(".safetensors")) {
const info = await getLatentMetadata(file);
if (info.workflow) {
this.loadGraphData(JSON.parse(info.workflow));
}
}
}
/**
* Registers a Comfy web extension with the app
* @param {ComfyExtension} extension
*/
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];
// HOTFIX: The current patch is designed to prevent the rest of the code from breaking due to primitive nodes,
// and additional work is needed to consider the primitive logic in the refresh logic.
if(!def)
continue;
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.name != 'image' && !widget.options.values.includes(widget.value)) {
widget.value = widget.options.values[0];
widget.callback(widget.value);
}
}
}
}
}
/**
* Clean current state
*/
clean() {
this.nodeOutputs = {};
this.nodePreviewImages = {}
this.lastPromptError = null;
this.lastExecutionError = null;
this.runningNodeId = null;
}
}
export const app = new ComfyApp();