From d2997ad522b8c2ace37f8e32730e83bc233d8f5b Mon Sep 17 00:00:00 2001
From: Andrei Gonchar <jeron312@gmail.com>
Date: Fri, 3 May 2024 22:52:06 +0300
Subject: [PATCH] Add back key

---
 choose/choose.go |  3 +++
 play/bindings.go |  3 +++
 play/play.go     | 10 ++++++++--
 3 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/choose/choose.go b/choose/choose.go
index 2f4ec3e..b7830a7 100644
--- a/choose/choose.go
+++ b/choose/choose.go
@@ -66,6 +66,9 @@ func (c choose) Update(msg tea.Msg) (m tea.Model, cmd tea.Cmd) {
 				challenge.Challenge(c.list.SelectedItem().(item)),
 				c.list.Width()+listStyle.GetHorizontalFrameSize(),
 				c.list.Height()+listStyle.GetVerticalFrameSize(),
+				func(msg tea.WindowSizeMsg) (m tea.Model, cmd tea.Cmd) {
+					return c.Update(msg)
+				},
 			)
 		}
 	}
diff --git a/play/bindings.go b/play/bindings.go
index 46cd62f..5f83dcb 100644
--- a/play/bindings.go
+++ b/play/bindings.go
@@ -11,6 +11,7 @@ type keyBindings struct {
 	Right      key.Binding
 	Input      key.Binding
 	Next       key.Binding
+	Back       key.Binding
 	Help       key.Binding
 	Learn      key.Binding
 	CloseLearn key.Binding
@@ -25,6 +26,7 @@ func (k keyBindings) FullHelp() [][]key.Binding {
 	return [][]key.Binding{
 		{k.Left, k.Right, k.Up, k.Down, k.Input, k.Next},
 		{
+			k.Back,
 			copyKey(k.Help, "close bindings help"),
 			k.Learn,
 			k.CloseLearn,
@@ -42,6 +44,7 @@ func newBindings() keyBindings {
 		Right:      key.NewBinding(key.WithKeys("right", "d"), key.WithHelp("→/d", "right answer")),
 		Input:      key.NewBinding(key.WithKeys("enter", " ", "f"), key.WithHelp("⮐ / /f", "select answer/open link")),
 		Next:       key.NewBinding(key.WithKeys("n"), key.WithHelp("N", "next answer")),
+		Back:       key.NewBinding(key.WithKeys("backspace", "b"), key.WithHelp("⌫/b", "return to challenge list")),
 		Help:       key.NewBinding(key.WithKeys("h", "?"), key.WithHelp("h/?", "see key bindings")),
 		Learn:      learnB,
 		CloseLearn: copyDisabled(learnB, "close learn info"),
diff --git a/play/play.go b/play/play.go
index fb14c1d..c7f7a88 100644
--- a/play/play.go
+++ b/play/play.go
@@ -28,13 +28,17 @@ type model struct {
 	question questionModel
 	learn    learn
 
+	backHandler BackHandler
+
 	help help.Model
 }
 
 const copyStatus = "Code has copied to clipboard"
 const copyErrStatus = "Code has not copied. Please install xsel, xclip, wl-clipboard or Termux:API"
 
-func New(c challenge.Challenge, width, height int) (tea.Model, tea.Cmd) {
+type BackHandler func(tea.WindowSizeMsg) (tea.Model, tea.Cmd)
+
+func New(c challenge.Challenge, width, height int, backHandler BackHandler) (tea.Model, tea.Cmd) {
 	// normalize line endings
 	codeLines := lines(c.DefaultCodeSnippet)
 
@@ -71,6 +75,7 @@ func New(c challenge.Challenge, width, height int) (tea.Model, tea.Cmd) {
 		questions:     c.Questions,
 		question:      newQuestionModel(c.Questions[0], len(c.Questions) == 1),
 		learn:         newLearn(c.LearningAdvise, c.LearningLinks),
+		backHandler:   backHandler,
 		help:          helpModel,
 	}
 
@@ -140,7 +145,8 @@ func (m model) Update(msg tea.Msg) (r tea.Model, cmd tea.Cmd) {
 					m.currentQuestion == len(m.questions)-1,
 				)
 			}
-
+		case key.Matches(msg, m.b.Back):
+			return m.backHandler(m.w)
 		case key.Matches(msg, m.b.Help):
 			m.help.ShowAll = !m.help.ShowAll
 		case key.Matches(msg, m.b.Quit):