diff --git a/cmd/test/panel.go b/cmd/test/panel.go
index 9e20efa..fc969a6 100644
--- a/cmd/test/panel.go
+++ b/cmd/test/panel.go
@@ -6,9 +6,9 @@ import (
 
 var DynamicPanelWidget = tg.RenderFunc(func(c tg.Context) tg.UI {
 	return tg.UI{
-		tg.Messagef("Paged panel").PagedPanel(
+		tg.Messagef("Paged panel").PanelPager(
 			c, 0, 5,
-			func(c tg.Context, page, size int) tg.PanelPage {
+			tg.PanelPagerFunc(func(c tg.Context, page, size int) tg.PanelPage {
 				rows := []tg.ButtonRow{}
 				for i := 0; i < size; i++ {
 					num := 1 + page*size + i
@@ -26,7 +26,7 @@ var DynamicPanelWidget = tg.RenderFunc(func(c tg.Context) tg.UI {
 					Next: page < 3,
 					Prev: page != 0,
 				}
-			},
+			}),
 		),
 		tg.Messagef("").Reply(
 			BackKeyboard.Reply(),
diff --git a/paged-panel.go b/paged-panel.go
index b8b66c1..3650a52 100644
--- a/paged-panel.go
+++ b/paged-panel.go
@@ -1,31 +1,40 @@
 package tg
 
+type PanelPager interface {
+	GetPanelPage(c Context, page, size int) PanelPage
+}
+
 type PanelPage struct {
 	Next, Prev bool
 	Rows []ButtonRow
 }
 
-type PanelPageFunc func(
+type PanelPagerFunc func(
 	c Context, page, size int,
 ) PanelPage
+func (fn PanelPagerFunc) GetPanelPage(
+	c Context, page, size int,
+) PanelPage {
+	return fn(c, page, size)
+}
 
-type PagedPanelCompo struct {
+type PanelPagerCompo struct {
 	PanelCompo
 	page int
 	size int
 	nextFormat, prevFormat, delFormat string
-	fn PanelPageFunc
+	pager PanelPager
 }
 
-func (compo *MessageCompo) PagedPanel(
+func (compo *MessageCompo) PanelPager(
 	c Context,
 	startPage, size int,
-	fn PanelPageFunc,
-) (*PagedPanelCompo) {
-	ret := &PagedPanelCompo{}
+	pager PanelPager,
+) (*PanelPagerCompo) {
+	ret := &PanelPagerCompo{}
 	ret.page = startPage
 	ret.size = size
-	ret.fn = fn
+	ret.pager = pager
 	ret.prevFormat = "<<<"
 	ret.nextFormat = ">>>"
 	ret.delFormat = "..."
@@ -37,10 +46,10 @@ func (compo *MessageCompo) PagedPanel(
 	return ret
 }
 
-func (panel *PagedPanelCompo) MakeRows(
+func (panel *PanelPagerCompo) MakeRows(
 	c Context,
 ) []ButtonRow {
-	page := panel.fn(
+	page := panel.pager.GetPanelPage(
 		c, panel.page, panel.size,
 	)