From 6409e17d4a8418e647c63e5174ff26442453eadf Mon Sep 17 00:00:00 2001
From: Chenlei Hu <huchenlei@proton.me>
Date: Fri, 6 Dec 2024 15:07:01 -0800
Subject: [PATCH] Hint for empty canvas when invoking Comfy.Canvas.FitView
 (#1826)

---
 package-lock.json             |  8 ++++----
 package.json                  |  2 +-
 src/hooks/coreCommandHooks.ts | 12 +++++++++++-
 3 files changed, 16 insertions(+), 6 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 29596b26f..cb3f0171d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -11,7 +11,7 @@
       "dependencies": {
         "@atlaskit/pragmatic-drag-and-drop": "^1.3.1",
         "@comfyorg/comfyui-electron-types": "^0.3.25",
-        "@comfyorg/litegraph": "^0.8.43",
+        "@comfyorg/litegraph": "^0.8.44",
         "@primevue/themes": "^4.0.5",
         "@vueuse/core": "^11.0.0",
         "@xterm/addon-fit": "^0.10.0",
@@ -1957,9 +1957,9 @@
       "license": "GPL-3.0-only"
     },
     "node_modules/@comfyorg/litegraph": {
-      "version": "0.8.43",
-      "resolved": "https://registry.npmjs.org/@comfyorg/litegraph/-/litegraph-0.8.43.tgz",
-      "integrity": "sha512-4LH/6inzA6KTs8XqqRha5+lZzVlQq3ZqqHFhdASzGpZHSAERfCiwNjsocRTiObV6gBGLdRxYQO7X7afkHGl2Bg==",
+      "version": "0.8.44",
+      "resolved": "https://registry.npmjs.org/@comfyorg/litegraph/-/litegraph-0.8.44.tgz",
+      "integrity": "sha512-lQqqEO7MXq0DFS5Rer8JJh5t3rajMbBLSeKUg84EPlZjv49nrn8pFwQp439awRrsRg8nPqGCD48Pck0K/Coknw==",
       "license": "MIT"
     },
     "node_modules/@cspotcode/source-map-support": {
diff --git a/package.json b/package.json
index d78064013..4e4a0658a 100644
--- a/package.json
+++ b/package.json
@@ -83,7 +83,7 @@
   "dependencies": {
     "@atlaskit/pragmatic-drag-and-drop": "^1.3.1",
     "@comfyorg/comfyui-electron-types": "^0.3.25",
-    "@comfyorg/litegraph": "^0.8.43",
+    "@comfyorg/litegraph": "^0.8.44",
     "@primevue/themes": "^4.0.5",
     "@vueuse/core": "^11.0.0",
     "@xterm/addon-fit": "^0.10.0",
diff --git a/src/hooks/coreCommandHooks.ts b/src/hooks/coreCommandHooks.ts
index d86166d50..308f239fb 100644
--- a/src/hooks/coreCommandHooks.ts
+++ b/src/hooks/coreCommandHooks.ts
@@ -231,7 +231,17 @@ export function useCoreCommands(): ComfyCommand[] {
       id: 'Comfy.Canvas.FitView',
       icon: 'pi pi-expand',
       label: 'Fit view to selected nodes',
-      function: () => app.canvas.fitViewToSelectionAnimated()
+      function: () => {
+        if (app.canvas.empty) {
+          useToastStore().add({
+            severity: 'error',
+            summary: 'Empty canvas',
+            life: 3000
+          })
+          return
+        }
+        app.canvas.fitViewToSelectionAnimated()
+      }
     },
     {
       id: 'Comfy.Canvas.ToggleLock',