Auto queue on change (#2542)

* Add toggle to enable auto queue when graph is changed

* type fix

* better

* better alignment

* Change undoredo to not ignore inputs when autoqueue in change mode

web/extensions/core/undoRedo.js

 import { app } from "../../scripts/app.js";
+import { api } from "../../scripts/api.js"
 
 const MAX_HISTORY = 50;
 
@@ -15,6 +16,7 @@ function checkState() {
 		}
 		activeState = clone(currentState);
 		redo.length = 0;
+		api.dispatchEvent(new CustomEvent("graphChanged", { detail: activeState }));
 	}
 }
 
@@ -92,7 +94,7 @@ const undoRedo = async (e) => {
 };
 
 const bindInput = (activeEl) => {
-	if (activeEl?.tagName !== "CANVAS" && activeEl?.tagName !== "BODY") {
+	if (activeEl && activeEl.tagName !== "CANVAS" && activeEl.tagName !== "BODY") {
 		for (const evt of ["change", "input", "blur"]) {
 			if (`on${evt}` in activeEl) {
 				const listener = () => {
@@ -111,11 +113,15 @@ window.addEventListener(
 	"keydown",
 	(e) => {
 		requestAnimationFrame(async () => {
-			const activeEl = document.activeElement;
+			let activeEl;
+			// If we are auto queue in change mode then we do want to trigger on inputs
+			if (!app.ui.autoQueueEnabled || app.ui.autoQueueMode === "instant") {
+				activeEl = document.activeElement;
 				if (activeEl?.tagName === "INPUT" || activeEl?.type === "textarea") {
 					// Ignore events on inputs, they have their native history
 					return;
 				}
+			}
 		
 			keyIgnored = e.key === "Control" || e.key === "Shift" || e.key === "Alt" || e.key === "Meta";
 			if (keyIgnored) return;
@@ -143,6 +149,11 @@ window.addEventListener("mouseup", () => {
 	checkState();
 });
 
+// Handle prompt queue event for dynamic widget changes
+api.addEventListener("promptQueued", () => {
+	checkState();
+});
+
 // Handle litegraph clicks
 const processMouseUp = LGraphCanvas.prototype.processMouseUp;
 LGraphCanvas.prototype.processMouseUp = function (e) {
@@ -156,3 +167,11 @@ LGraphCanvas.prototype.processMouseDown = function (e) {
 	checkState();
 	return v;
 };
+
+// Handle litegraph context menu for COMBO widgets
+const close = LiteGraph.ContextMenu.prototype.close;
+LiteGraph.ContextMenu.prototype.close = function(e) {
+	const v = close.apply(this, arguments);
+	checkState();
+	return v;
+}
\ No newline at end of file

web/scripts/app.js

@@ -2068,6 +2068,7 @@ export class ComfyApp {
 		} finally {
 			this.#processingQueue = false;
 		}
+		api.dispatchEvent(new CustomEvent("promptQueued", { detail: { number, batchCount } }));
 	}
 
 	/**

web/scripts/ui.js

 import { api } from "./api.js";
 import { ComfyDialog as _ComfyDialog } from "./ui/dialog.js";
+import { toggleSwitch } from "./ui/toggleSwitch.js";
 import { ComfySettingsDialog } from "./ui/settings.js";
 
 export const ComfyDialog = _ComfyDialog;
@@ -368,6 +369,31 @@ export class ComfyUI {
 			},
 		});
 
+		const autoQueueModeEl = toggleSwitch(
+			"autoQueueMode",
+			[
+				{ text: "instant", tooltip: "A new prompt will be queued as soon as the queue reaches 0" },
+				{ text: "change", tooltip: "A new prompt will be queued when the queue is at 0 and the graph is/has changed" },
+			],
+			{
+				onChange: (value) => {
+					this.autoQueueMode = value.item.value;
+				},
+			}
+		);
+		autoQueueModeEl.style.display = "none";
+
+		api.addEventListener("graphChanged", () => {
+			if (this.autoQueueMode === "change") {
+				if (this.lastQueueSize === 0) {
+					this.graphHasChanged = false;
+					app.queuePrompt(0, this.batchCount);
+				} else {
+					this.graphHasChanged = true;
+				}
+			}
+		});
+
 		this.menuContainer = $el("div.comfy-menu", {parent: document.body}, [
 			$el("div.drag-handle", {
 				style: {
@@ -394,6 +420,7 @@ export class ComfyUI {
 							document.getElementById("extraOptions").style.display = i.srcElement.checked ? "block" : "none";
 							this.batchCount = i.srcElement.checked ? document.getElementById("batchCountInputRange").value : 1;
 							document.getElementById("autoQueueCheckbox").checked = false;
+							this.autoQueueEnabled = false;
 						},
 					}),
 				]),
@@ -425,20 +452,22 @@ export class ComfyUI {
 						},
 					}),		
 				]),
-
 				$el("div",[
 					$el("label",{
 						for:"autoQueueCheckbox",
 						innerHTML: "Auto Queue"
-						// textContent: "Auto Queue"
 					}),
 					$el("input", {
 						id: "autoQueueCheckbox",
 						type: "checkbox",
 						checked: false,
 						title: "Automatically queue prompt when the queue size hits 0",
-						
+						onchange: (e) => {
+							this.autoQueueEnabled = e.target.checked;
+							autoQueueModeEl.style.display = this.autoQueueEnabled ? "" : "none";
+						}
 					}),
+					autoQueueModeEl
 				])
 			]),
 			$el("div.comfy-menu-btns", [
@@ -572,10 +601,13 @@ export class ComfyUI {
 			if (
 				this.lastQueueSize != 0 &&
 				status.exec_info.queue_remaining == 0 &&
-				document.getElementById("autoQueueCheckbox").checked &&
-				! app.lastExecutionError
+				this.autoQueueEnabled &&
+				(this.autoQueueMode === "instant" || this.graphHasChanged) &&
+				!app.lastExecutionError
 			) {
 				app.queuePrompt(0, this.batchCount);
+				status.exec_info.queue_remaining += this.batchCount;
+				this.graphHasChanged = false;
 			}
 			this.lastQueueSize = status.exec_info.queue_remaining;
 		}

web/scripts/ui/toggleSwitch.js

+import { $el } from "../ui.js";
+
+/**
+ * @typedef { { text: string, value?: string, tooltip?: string } } ToggleSwitchItem
+ */
+/**
+ * Creates a toggle switch element
+ * @param { string } name
+ * @param { Array<string | ToggleSwitchItem } items
+ * @param { Object } [opts]
+ * @param { (e: { item: ToggleSwitchItem, prev?: ToggleSwitchItem }) => void } [opts.onChange]
+ */
+export function toggleSwitch(name, items, { onChange } = {}) {
+	let selectedIndex;
+	let elements;
+	
+	function updateSelected(index) {
+		if (selectedIndex != null) {
+			elements[selectedIndex].classList.remove("comfy-toggle-selected");
+		}
+		onChange?.({ item: items[index], prev: selectedIndex == null ? undefined : items[selectedIndex] });
+		selectedIndex = index;
+		elements[selectedIndex].classList.add("comfy-toggle-selected");
+	}
+
+	elements = items.map((item, i) => {
+		if (typeof item === "string") item = { text: item };
+		if (!item.value) item.value = item.text;
+
+		const toggle = $el(
+			"label",
+			{
+				textContent: item.text,
+				title: item.tooltip ?? "",
+			},
+			$el("input", {
+				name,
+				type: "radio",
+				value: item.value ?? item.text,
+				checked: item.selected,
+				onchange: () => {
+					updateSelected(i);
+				},
+			})
+		);
+		if (item.selected) {
+			updateSelected(i);
+		}
+		return toggle;
+	});
+
+	const container = $el("div.comfy-toggle-switch", elements);
+
+	if (selectedIndex == null) {
+		elements[0].children[0].checked = true;
+		updateSelected(0);
+	}
+
+	return container;
+}

web/style.css

@@ -121,6 +121,7 @@ body {
 	width: 100%;
 }
 
+.comfy-toggle-switch,
 .comfy-btn,
 .comfy-menu > button,
 .comfy-menu-btns button,
@@ -434,6 +435,43 @@ dialog::backdrop {
 	margin-left: 5px;
 }
 
+.comfy-toggle-switch {
+	border-width: 2px;
+	display: flex;
+	background-color: var(--comfy-input-bg);
+	margin: 2px 0;
+	white-space: nowrap;
+}
+
+.comfy-toggle-switch label {
+	padding: 2px 0px 3px 6px;
+	flex: auto;
+	border-radius: 8px;
+    align-items: center;
+    display: flex;
+    justify-content: center;
+}
+
+.comfy-toggle-switch label:first-child {
+	border-top-left-radius: 8px;
+	border-bottom-left-radius: 8px;
+}
+.comfy-toggle-switch label:last-child {
+	border-top-right-radius: 8px;
+	border-bottom-right-radius: 8px;
+}
+
+.comfy-toggle-switch .comfy-toggle-selected {
+	background-color: var(--comfy-menu-bg);
+}
+
+#extraOptions {
+	padding: 4px;
+	background-color: var(--bg-color);
+	margin-bottom: 4px;
+	border-radius: 4px;
+}
+
 /* Search box */
 
 .litegraph.litesearchbox {