fix: Prevent multiple error prompts when ComfyUI is unavailable

typescripts/comfyui/comfyapi.ts

@@ -26,15 +26,17 @@ class ComfyAPI {
     constructor(comfy_url: string) {
         this.comfy_url = comfy_url
     }
-    async init() {
+    async init(display_error = false) {
         try {
             this.object_info = await this.initializeObjectInfo(this.comfy_url)
             this.status = true
             return this.object_info
         } catch (e) {
             console.error(e)
-            app.showAlert(`${e}`)
             this.status = false
+            if (display_error) {
+                app.showAlert(`${e}`)
+            }
         }
     }
     setUrl(comfy_url: string) {

typescripts/sd_tab/sd_tab.tsx

@@ -271,7 +271,7 @@ class SDTab extends React.Component<{}> {
                             id="btnRefreshModels"
                             // style={styles.button}
                             onClick={async (e) => {
-                                await refreshUI()
+                                await refreshUI(true)
 
                                 tempDisableElement(e.target, 3000)
                             }}

typescripts/sd_tab/util.ts

@@ -358,7 +358,7 @@ export function loadNativePreset() {
     console.log(json_container)
     return json_container
 }
-export async function refreshUI() {
+export async function refreshUI(display_error = false) {
     try {
         const b_proxy_server_status = await updateVersionUI()
         if (b_proxy_server_status) {
@@ -410,7 +410,7 @@ export async function refreshUI() {
         }
 
         if (settings_tab_ts.store.data.selected_backend === 'ComfyUI') {
-            await comfyapi.comfy_api.init()
+            await comfyapi.comfy_api.init(display_error)
 
             helper_store.data.models = comfyapi.comfy_api.getModels()
             store.data.selected_model = helper_store.data.models?.[0]