fix: don't undo initial state (fix nhn#3266)

rawstream · Sep 28, 2024 · 0fde029 · 0fde029
1 parent 0c5c11b
commit 0fde029
Showing 1 changed file with 8 additions and 1 deletion.
diff --git a/apps/editor/src/commands/defaultCommands.ts b/apps/editor/src/commands/defaultCommands.ts
@@ -7,7 +7,14 @@ export function getDefaultCommands(): Record<string, EditorCommand> {
   return {
     deleteSelection: () => deleteSelection,
     selectAll: () => selectAll,
-    undo: () => undo,
+    undo: () => (state, dispatch) => {
+      const hist = state.history$;
+
+      // The initial state is not counted as a history event
+      if (!hist || hist.done.eventCount === 1) return false;
+      undo(state, dispatch);
+      return true;
+    },
     redo: () => redo,
   };
 }