diff --git a/apps/gophers/main.go b/apps/gophers/main.go
index c3eb9a26..b13ade4e 100644
--- a/apps/gophers/main.go
+++ b/apps/gophers/main.go
@@ -498,7 +498,7 @@ func (a *ActionButton) Layout(cs layout.Constraints) (ui.Op, layout.Dimens) {
 		layout.Margins{Top: ui.Dp(4)},
 		layout.F(func(cs layout.Constraints) (ui.Op, layout.Dimens) {
 			op, dims := fab(c, a.sendIco.image(c), fabCol, ui.Dp(56)).Layout(cs)
-			ops := ui.Ops{op, a.btnClicker.Op(gesture.Ellipse(dims.Size))}
+			ops := ui.Ops{op, a.btnClicker.Op(&gesture.Ellipse{dims.Size})}
 			return ops, dims
 		}),
 	))
@@ -556,7 +556,7 @@ func (a *App) user(c *ui.Config, index int) layout.Widget {
 						Layout()
 				}),
 			).Layout(cs)
-			ops := ui.Ops{op, click.Op(gesture.Rect(dims.Size))}
+			ops := ui.Ops{op, click.Op(&gesture.Rect{dims.Size})}
 			return ops, dims
 		}))
 		return elem.Layout()
diff --git a/ui/gesture/gestures.go b/ui/gesture/gestures.go
index c3c598d9..83f04764 100644
--- a/ui/gesture/gestures.go
+++ b/ui/gesture/gestures.go
@@ -37,6 +37,14 @@ type Scroll struct {
 	scroll float32
 }
 
+type Rect struct {
+	Size image.Point
+}
+
+type Ellipse struct {
+	Size image.Point
+}
+
 type flinger struct {
 	// Current offset in pixels.
 	x float32
@@ -254,30 +262,26 @@ func (f *flinger) Tick(now time.Time) int {
 	return idist
 }
 
-func Rect(sz image.Point) pointer.Area {
-	return func(pos f32.Point) pointer.HitResult {
-		if 0 <= pos.X && pos.X < float32(sz.X) &&
-			0 <= pos.Y && pos.Y < float32(sz.Y) {
-			return pointer.HitOpaque
-		} else {
-			return pointer.HitNone
-		}
+func (r *Rect) Hit(pos f32.Point) pointer.HitResult {
+	if 0 <= pos.X && pos.X < float32(r.Size.X) &&
+		0 <= pos.Y && pos.Y < float32(r.Size.Y) {
+		return pointer.HitOpaque
+	} else {
+		return pointer.HitNone
 	}
 }
 
-func Ellipse(sz image.Point) pointer.Area {
-	return func(pos f32.Point) pointer.HitResult {
-		rx := float32(sz.X) / 2
-		ry := float32(sz.Y) / 2
-		rx2 := rx * rx
-		ry2 := ry * ry
-		xh := pos.X - rx
-		yk := pos.Y - ry
-		if xh*xh*ry2+yk*yk*rx2 <= rx2*ry2 {
-			return pointer.HitOpaque
-		} else {
-			return pointer.HitNone
-		}
+func (e *Ellipse) Hit(pos f32.Point) pointer.HitResult {
+	rx := float32(e.Size.X) / 2
+	ry := float32(e.Size.Y) / 2
+	rx2 := rx * rx
+	ry2 := ry * ry
+	xh := pos.X - rx
+	yk := pos.Y - ry
+	if xh*xh*ry2+yk*yk*rx2 <= rx2*ry2 {
+		return pointer.HitOpaque
+	} else {
+		return pointer.HitNone
 	}
 }
 
diff --git a/ui/layout/list.go b/ui/layout/list.go
index 84b4d917..81e03b03 100644
--- a/ui/layout/list.go
+++ b/ui/layout/list.go
@@ -83,7 +83,7 @@ func (l *List) Index() (int, bool) {
 }
 
 func (l *List) Layout() (ui.Op, Dimens) {
-	ops := append(ui.Ops{l.scroll.Op(gesture.Rect(l.size))}, l.ops...)
+	ops := append(ui.Ops{l.scroll.Op(&gesture.Rect{l.size})}, l.ops...)
 	return ops, Dimens{Size: l.size}
 }
 
diff --git a/ui/pointer/pointer.go b/ui/pointer/pointer.go
index dcc27423..061debe3 100644
--- a/ui/pointer/pointer.go
+++ b/ui/pointer/pointer.go
@@ -25,7 +25,9 @@ type OpHandler struct {
 	Grab bool
 }
 
-type Area func(pos f32.Point) HitResult
+type Area interface {
+	Hit(pos f32.Point) HitResult
+}
 
 type Key interface{}
 
diff --git a/ui/pointer/queue.go b/ui/pointer/queue.go
index 86bd31c3..d2d44071 100644
--- a/ui/pointer/queue.go
+++ b/ui/pointer/queue.go
@@ -101,7 +101,7 @@ func (q *Queue) opHit(handlers *[]Key, op ui.Op, pos f32.Point) (HitResult, bool
 			return HitNone, false
 		}
 		tpos := h.transform.InvTransform(pos)
-		res := h.area(tpos)
+		res := h.area.Hit(tpos)
 		if res != HitNone {
 			*handlers = append(*handlers, op.Key)
 		}
@@ -229,7 +229,7 @@ func (q *Queue) Push(e Event) {
 			e.Priority = Foremost
 		}
 		e.Position = h.transform.InvTransform(e.Position)
-		e.Hit = h.area(e.Position) != HitNone
+		e.Hit = h.area.Hit(e.Position) != HitNone
 		h.events = append(h.events, e)
 		if e.Type == Release {
 			// Release grab when the number of grabs reaches zero.
diff --git a/ui/text/editor.go b/ui/text/editor.go
index 610cb07d..f32820c7 100644
--- a/ui/text/editor.go
+++ b/ui/text/editor.go
@@ -206,7 +206,7 @@ func (e *Editor) Layout(cs layout.Constraints) (ui.Op, layout.Dimens) {
 	}
 
 	baseline := e.padTop + e.dims.Baseline
-	area := gesture.Rect(e.viewSize)
+	area := &gesture.Rect{e.viewSize}
 	e.ops = append(e.ops, e.scroller.Op(area), e.clicker.Op(area))
 	return e.ops, layout.Dimens{Size: e.viewSize, Baseline: baseline}
 }