Refactor the template manager (#1878)

* add drag-drop to node template manager

* better dnd, save field on change

* actually save templates

---------
Co-authored-by: matt3o <matt3o@gmail.com>

web/extensions/core/nodeTemplates.js

@@ -14,6 +14,9 @@ import { ComfyDialog, $el } from "../../scripts/ui.js";
 // To delete/rename:
 // Right click the canvas
 // Node templates -> Manage
+//
+// To rearrange:
+// Open the manage dialog and Drag and drop elements using the "Name:" label as handle
 
 const id = "Comfy.NodeTemplates";
 
@@ -22,6 +25,10 @@ class ManageTemplates extends ComfyDialog {
 		super();
 		this.element.classList.add("comfy-manage-templates");
 		this.templates = this.load();
+		this.draggedEl = null;
+		this.saveVisualCue = null;
+		this.emptyImg = new Image();
+		this.emptyImg.src = 'data:image/gif;base64,R0lGODlhAQABAIAAAAUEBAAAACwAAAAAAQABAAACAkQBADs=';
 
 		this.importInput = $el("input", {
 			type: "file",
@@ -35,14 +42,11 @@ class ManageTemplates extends ComfyDialog {
 
 	createButtons() {
 		const btns = super.createButtons();
-		btns[0].textContent = "Cancel";
-		btns.unshift(
-			$el("button", {
-				type: "button",
-				textContent: "Save",
-				onclick: () => this.save(),
-			})
-		);
+		btns[0].textContent = "Close";
+		btns[0].onclick = (e) => {
+			clearTimeout(this.saveVisualCue);
+			this.close();
+		};
 		btns.unshift(
 			$el("button", {
 				type: "button",
@@ -71,25 +75,6 @@ class ManageTemplates extends ComfyDialog {
 		}
 	}
 
-	save() {
-		// Find all visible inputs and save them as our new list
-		const inputs = this.element.querySelectorAll("input");
-		const updated = [];
-
-		for (let i = 0; i < inputs.length; i++) {
-			const input = inputs[i];
-			if (input.parentElement.style.display !== "none") {
-				const t = this.templates[i];
-				t.name = input.value.trim() || input.getAttribute("data-name");
-				updated.push(t);
-			}
-		}
-
-		this.templates = updated;
-		this.store();
-		this.close();
-	}
-
 	store() {
 		localStorage.setItem(id, JSON.stringify(this.templates));
 	}
@@ -143,29 +128,103 @@ class ManageTemplates extends ComfyDialog {
 	show() {
 		// Show list of template names + delete button
 		super.show(
+			$el(
+				"div",
+				{},
+				this.templates.flatMap((t,i) => {
+					let nameInput;
+					return [
 						$el(
 							"div",
 							{
+								dataset: { id: i },
+								className: "tempateManagerRow",
 								style: {
 									display: "grid",
 									gridTemplateColumns: "1fr auto",
+									border: "1px dashed transparent",
 									gap: "5px",
+									backgroundColor: "var(--comfy-menu-bg)"
 								},
+								ondragstart: (e) => {
+									this.draggedEl = e.currentTarget;
+									e.currentTarget.style.opacity = "0.6";
+									e.currentTarget.style.border = "1px dashed yellow";
+									e.dataTransfer.effectAllowed = 'move';
+									e.dataTransfer.setDragImage(this.emptyImg, 0, 0);
 								},
-				this.templates.flatMap((t) => {
-					let nameInput;
-					return [
+								ondragend: (e) => {
+									e.target.style.opacity = "1";
+									e.currentTarget.style.border = "1px dashed transparent";
+									e.currentTarget.removeAttribute("draggable");
+
+									// rearrange the elements in the localStorage
+									this.element.querySelectorAll('.tempateManagerRow').forEach((el,i) => {
+										var prev_i = el.dataset.id;
+
+										if ( el == this.draggedEl && prev_i != i ) {
+											[this.templates[i], this.templates[prev_i]] = [this.templates[prev_i], this.templates[i]];
+										}
+										el.dataset.id = i;
+									});
+									this.store();
+								},
+								ondragover: (e) => {
+									e.preventDefault();
+									if ( e.currentTarget == this.draggedEl )
+										return;
+
+									let rect = e.currentTarget.getBoundingClientRect();
+									if (e.clientY > rect.top + rect.height / 2) {
+										e.currentTarget.parentNode.insertBefore(this.draggedEl, e.currentTarget.nextSibling);
+									} else {
+										e.currentTarget.parentNode.insertBefore(this.draggedEl, e.currentTarget);
+									}
+								}
+							},
+							[
 								$el(
 									"label",
 									{
 										textContent: "Name: ",
+										style: {
+											cursor: "grab",
+										},
+										onmousedown: (e) => {
+											// enable dragging only from the label
+											if (e.target.localName == 'label')
+												e.currentTarget.parentNode.draggable = 'true';
+										}
 									},
 									[
 										$el("input", {
 											value: t.name,
 											dataset: { name: t.name },
+											style: {
+												transitionProperty: 'background-color',
+												transitionDuration: '0s',
+											},
+											onchange: (e) => {
+												clearTimeout(this.saveVisualCue);
+												var el = e.target;
+												var row = el.parentNode.parentNode;
+												this.templates[row.dataset.id].name = el.value.trim() || 'untitled';
+												this.store();
+												el.style.backgroundColor = 'rgb(40, 95, 40)';
+												el.style.transitionDuration = '0s';
+												this.saveVisualCue = setTimeout(function () {
+													el.style.transitionDuration = '.7s';
+													el.style.backgroundColor = 'var(--comfy-input-bg)';
+												}, 15);
+											},
+											onkeypress: (e) => {
+												var el = e.target;
+												clearTimeout(this.saveVisualCue);
+												el.style.transitionDuration = '0s';
+												el.style.backgroundColor = 'var(--comfy-input-bg)';
+											},
 											$: (el) => (nameInput = el),
-								}),
+										})
 									]
 								),
 								$el(
@@ -203,13 +262,23 @@ class ManageTemplates extends ComfyDialog {
 												fontWeight: "normal",
 											},
 											onclick: (e) => {
-										nameInput.value = "";
-										e.target.parentElement.style.display = "none";
-										e.target.parentElement.previousElementSibling.style.display = "none";
+												const item = e.target.parentNode.parentNode;
+												item.parentNode.removeChild(item);
+												this.templates.splice(item.dataset.id*1, 1);
+												this.store();
+												// update the rows index, setTimeout ensures that the list is updated
+												var that = this;
+												setTimeout(function (){
+													that.element.querySelectorAll('.tempateManagerRow').forEach((el,i) => {
+														el.dataset.id = i;
+													});
+												}, 0);
 											},
 										}),
 									]
 								),
+							]
+						)
 					];
 				})
 			)