[sc] even more ergo

apps/star-chart/web/src/components/canvas/Canvas.ts

@@ -4,7 +4,7 @@ import { clampVector, snap } from './math.js';
 import { ObjectBounds } from './ObjectBounds.js';
 import { Selections } from './Selections.js';
 import { RectLimits, Vector2 } from './types.js';
-import { Viewport, ViewportConfig } from './Viewport.js';
+import { Viewport, ViewportConfig, ViewportEventOrigin } from './Viewport.js';
 import { proxy } from 'valtio';
 
 export interface CanvasOptions {
@@ -222,5 +222,16 @@ export class Canvas extends EventSubscriber<CanvasEvents> {
     }
   };
 
+  zoomToFit = (
+    options: { origin?: ViewportEventOrigin; margin?: number } = {},
+  ) => {
+    const bounds = this.bounds.getCurrentContainer();
+    if (bounds) {
+      this.viewport.fitOnScreen(bounds, options);
+    } else {
+      this.viewport.doMove(this.center, 1, options);
+    }
+  };
+
   dispose = () => {};
 }

apps/star-chart/web/src/components/project/ProjectCanvas.tsx

@@ -136,10 +136,7 @@ function useZoomToFit(tasks: Task[]) {
     // effects that ran on the same render. mainly
     // the canvas viewport setup stuff...
     requestAnimationFrame(() => {
-      const bounds = canvas.bounds.getCurrentContainer();
-      if (!bounds) return;
-
-      canvas.viewport.fitOnScreen(bounds, { origin: 'control', margin: 10 });
+      canvas.zoomToFit({ origin: 'control', margin: 10 });
     });
     setHasZoomed(true);
   }, [tasks, canvas, hasZoomed]);