feat: toggle guilds tree using keybinding (#297)

Co-authored-by: ayn2op <ayn2op@ayn2ops-MacBook-Air.local>

internal/config/keys.go

@@ -2,7 +2,8 @@ package config
 
 type (
 	GuildsTreeKeys struct {
-		Focus string `yaml:"focus"`
+		Focus  string `yaml:"focus"`
+		Toggle string `yaml:"toggle"`
 	}
 
 	MessagesTextKeys struct {
@@ -44,7 +45,8 @@ func defKeys() Keys {
 		Cancel: "Esc",
 
 		GuildsTree: GuildsTreeKeys{
-			Focus: "Alt+Rune[g]",
+			Focus:  "Alt+Rune[g]",
+			Toggle: "Alt+Rune[b]",
 		},
 
 		MessagesText: MessagesTextKeys{

main_flex.go

@@ -23,6 +23,15 @@ func newMainFlex() *MainFlex {
 		messageInput: newMessageInput(),
 	}
 
+	mf.init()
+	mf.SetInputCapture(mf.onInputCapture)
+
+	return mf
+}
+
+func (mf *MainFlex) init() {
+	mf.Clear()
+
 	right := tview.NewFlex()
 	right.SetDirection(tview.FlexRow)
 	right.AddItem(mf.messagesText, 0, 1, false)
@@ -30,13 +39,24 @@ func newMainFlex() *MainFlex {
 	// The guilds tree is always focused first at start-up.
 	mf.AddItem(mf.guildsTree, 0, 1, true)
 	mf.AddItem(right, 0, 4, false)
-	mf.SetInputCapture(mf.onInputCapture)
-
-	return mf
 }
 
 func (mf *MainFlex) onInputCapture(event *tcell.EventKey) *tcell.EventKey {
 	switch event.Name() {
+	case config.Current.Keys.GuildsTree.Toggle:
+		// The guilds tree is visible if the numbers of items is two.
+		if mf.GetItemCount() == 2 {
+			mf.RemoveItem(mf.guildsTree)
+
+			if mf.guildsTree.HasFocus() {
+				app.SetFocus(mf)
+			}
+		} else {
+			mf.init()
+			app.SetFocus(mf.guildsTree)
+		}
+
+		return nil
 	case config.Current.Keys.GuildsTree.Focus:
 		app.SetFocus(mf.guildsTree)
 		return nil

man/discordo.1

@@ -28,6 +28,7 @@ l l
 l l .
 \fB\fCAction\fR	\fB\fCKeybinding\fR
 Focus	Alt + g
+Toggle Alt + b
 .TE
 
 .SS Messages Text

man/discordo.md

@@ -29,6 +29,7 @@ The default keybindings in the app are as follow
 | Action | Keybinding |
 | ------ | ---------- |
 | Focus  | Alt + g    |
+| Toggle | Alt + b    |
 
 ### Messages Text