do not re-render static when setting selected element ids in lasso

packages/excalidraw/components/canvases/StaticCanvas.tsx

@@ -89,7 +89,10 @@ const StaticCanvas = (props: StaticCanvasProps) => {
 
 const getRelevantAppStateProps = (
   appState: AppState,
-): StaticCanvasAppState => ({
+):
+  | StaticCanvasAppState
+  | Omit<StaticCanvasAppState, "selectedElementIds" | "activeTool"> => {
+  const relevantAppStateProps = {
     zoom: appState.zoom,
     scrollX: appState.scrollX,
     scrollY: appState.scrollY,
@@ -114,7 +117,18 @@ const getRelevantAppStateProps = (
     editingGroupId: appState.editingGroupId,
     currentHoveredFontFamily: appState.currentHoveredFontFamily,
     croppingElementId: appState.croppingElementId,
-});
+    activeTool: appState.activeTool,
+  };
+
+  if (appState.activeTool.type === "lasso") {
+    delete (relevantAppStateProps as Partial<typeof relevantAppStateProps>)
+      .activeTool;
+    delete (relevantAppStateProps as Partial<typeof relevantAppStateProps>)
+      .selectedElementIds;
+  }
+
+  return relevantAppStateProps;
+};
 
 const areEqual = (
   prevProps: StaticCanvasProps,

packages/excalidraw/types.ts

@@ -203,6 +203,8 @@ export type StaticCanvasAppState = Readonly<
     hoveredElementIds: AppState["hoveredElementIds"];
     // Cropping
     croppingElementId: AppState["croppingElementId"];
+    // For reducing unnecessary re-renders
+    activeTool: AppState["activeTool"];
   }
 >;