From 04b853bee0a39a2f5d77437f2f5f73bb28f1a1ac Mon Sep 17 00:00:00 2001
From: Justin Do <justin.namdo@gmail.com>
Date: Tue, 5 Dec 2023 15:17:06 +0700
Subject: [PATCH] update logic on slider and segmented control

---
 ui/cryptomaterial/segmented_control.go | 8 ++++++++
 ui/cryptomaterial/slide_action.go      | 4 ++++
 ui/cryptomaterial/slider.go            | 3 +++
 3 files changed, 15 insertions(+)

diff --git a/ui/cryptomaterial/segmented_control.go b/ui/cryptomaterial/segmented_control.go
index a64277693..769aad40a 100644
--- a/ui/cryptomaterial/segmented_control.go
+++ b/ui/cryptomaterial/segmented_control.go
@@ -33,6 +33,8 @@ type SegmentedControl struct {
 	slideAction          *SlideAction
 	slideActionTitle     *SlideAction
 	segmentType          SegmentType
+
+	IsAllowsCycle bool
 }
 
 func (t *Theme) SegmentedControl(segmentTitles []string, segmentType SegmentType) *SegmentedControl {
@@ -243,6 +245,9 @@ func (sc *SegmentedControl) handleActionEvent(isNext bool) {
 	l := len(sc.segmentTitles) - 1 // index starts at 0
 	if isNext {
 		if sc.selectedIndex == l {
+			if !sc.IsAllowsCycle {
+				return
+			}
 			sc.selectedIndex = 0
 		} else {
 			sc.selectedIndex++
@@ -251,6 +256,9 @@ func (sc *SegmentedControl) handleActionEvent(isNext bool) {
 		sc.slideActionTitle.PushLeft()
 	} else {
 		if sc.selectedIndex == 0 {
+			if !sc.IsAllowsCycle {
+				return
+			}
 			sc.selectedIndex = l
 		} else {
 			sc.selectedIndex--
diff --git a/ui/cryptomaterial/slide_action.go b/ui/cryptomaterial/slide_action.go
index 16724aa69..5688b460a 100644
--- a/ui/cryptomaterial/slide_action.go
+++ b/ui/cryptomaterial/slide_action.go
@@ -109,6 +109,7 @@ func (s *SlideAction) DragLayout(gtx C, w layout.Widget) D {
 	return dims
 }
 
+// TransformLayout perform transition effects between 2 widgets
 func (s *SlideAction) TransformLayout(gtx C, w layout.Widget) D {
 	if s.push != 0 {
 		s.next = nil
@@ -125,6 +126,7 @@ func (s *SlideAction) TransformLayout(gtx C, w layout.Widget) D {
 		s.t0 = now
 	}
 
+	// Calculate the duration of transition effects
 	if s.offset != 0 {
 		duration := s.Duration
 		if duration == 0 {
@@ -146,6 +148,7 @@ func (s *SlideAction) TransformLayout(gtx C, w layout.Widget) D {
 		op.InvalidateOp{}.Add(gtx.Ops)
 	}
 
+	// Record the widget presentation
 	var dims layout.Dimensions
 	{
 		if s.next == nil {
@@ -171,6 +174,7 @@ func (s *SlideAction) TransformLayout(gtx C, w layout.Widget) D {
 		reverse = -1
 	}
 
+	// Implement transition effects for widgets
 	if s.offset > 0 {
 		defer op.Offset(image.Point{
 			X: int(float32(dims.Size.X)*(offset-1)) * reverse,
diff --git a/ui/cryptomaterial/slider.go b/ui/cryptomaterial/slider.go
index 3fe556864..d92ae4df2 100644
--- a/ui/cryptomaterial/slider.go
+++ b/ui/cryptomaterial/slider.go
@@ -93,6 +93,9 @@ func (s *Slider) Layout(gtx C, items []layout.Widget) D {
 				return s.slideAction.TransformLayout(gtx, s.slideItems[s.selected].widgetItem)
 			}),
 			layout.Stacked(func(gtx C) D {
+				if len(s.slideItems) == 1 {
+					return D{}
+				}
 				return layout.Inset{
 					Right:  values.MarginPadding15,
 					Left:   values.MarginPadding15,