Add support for file list refresh feature in node (#192)

* Added file reload feature to widgets.

* Modify feature name 'reload' to 'refresh' and fixed ignoring button name.

* refresh widget bugfix

* crash patch for "widget" input by type mismatch

* compensate offset on showimage
* adding widget caused misaligned offset

* patch refresh feature for general method

* clean up patch and following upstream

* make more clean code for refresh feature

* move refresh button position

* robust patch for refresh feature

* patch for refreh feature
* avoid specify REFRESH_LIST for each node
* prevent updating selected value unless removed item
* update all combo list for 'required input' in node

---------
Co-authored-by: Lt.Dr.Data <lt.dr.data@gmail.com>

web/scripts/app.js

@@ -901,6 +901,31 @@ class ComfyApp {
 		}
 		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];
+					}
+				}
+			}
+		}
+	}
 }
 
 export const app = new ComfyApp();

web/scripts/ui.js

@@ -376,6 +376,7 @@ export class ComfyUI {
 				},
 			}),
 			$el("button", { textContent: "Load", onclick: () => fileInput.click() }),
+			$el("button", { textContent: "Refresh", onclick: () => app.refreshComboInNodes() }),
 			$el("button", { textContent: "Clear", onclick: () => app.graph.clear() }),
 			$el("button", { textContent: "Load Default", onclick: () => app.loadGraphData() }),
 		]);