fix: enable layer scrolling (wagoodman#521)

Fixes wagoodman#469 Fixes wagoodman#494 Fixes wagoodman#540 Refs wagoodman#473 Refs wagoodman#478 Refs wagoodman#520 Co-authored-by: st-gr <[email protected]>
joschi · Nov 7, 2024 · 8a6ee09 · 8a6ee09
1 parent ad250f0
commit 8a6ee09
Showing 1 changed file with 17 additions and 0 deletions.
diff --git a/runtime/ui/view/layer.go b/runtime/ui/view/layer.go
@@ -221,6 +221,14 @@ func (v *Layer) CursorUp() error {
 	return nil
 }
 
+// SetOrigin updates the origin of the layer view pane.
+func (v *Layer) SetOrigin(x, y int) error {
+	if err := v.body.SetOrigin(x, y); err != nil {
+		return err
+	}
+	return nil
+}
+
 // SetCursor resets the cursor and orients the file tree view based on the given layer index.
 func (v *Layer) SetCursor(layer int) error {
 	v.vm.LayerIndex = layer
@@ -340,6 +348,15 @@ func (v *Layer) Render() error {
 				return err
 			}
 		}
+
+		// Adjust origin, if necessary
+		maxBodyDisplayHeight := int(v.height())
+		if v.vm.LayerIndex > maxBodyDisplayHeight {
+			if err := v.SetOrigin(0, v.vm.LayerIndex-maxBodyDisplayHeight); err != nil {
+				return err
+			}
+		}
+
 		return nil
 	})
 	return nil