Fix AudioOptions navigation

internal/page/AudioOptions.go

@@ -15,10 +15,12 @@ import (
 	"rhemawavetech.com/rhemawave/internal/shaderManager"
 )
 
-// focusToggle is the focus state of the audio on/off toggle, the bottommost
-// focusable item. Focus states increase from top to bottom on screen:
-// 0 = Audio Track entry, 1 = Output Device entry, focusToggle = toggle.
-const focusToggle = 2
+// focusToggle is the focus state of the audio on/off toggle, the topmost
+// focusable item on screen (Y increases upward). Focus states increase from
+// top to bottom: focusToggle = toggle, 1 = Output Device, maxFocus = Audio Track.
+const focusToggle = 0
+
+const maxFocus = 2
 
 const triangleSize = float32(16)
 
@@ -304,10 +306,10 @@ func (p *AudioOptions) updateCursorPosition() {
 	switch {
 	case p.focusState == focusToggle:
 		item = &p.AudioStatusToggle
-	case p.focusState == 0:
-		item = &p.audioTrackItem
 	case p.focusState == 1:
 		item = &p.outputDeviceItem
+	case p.focusState == 2:
+		item = &p.audioTrackItem
 	default:
 		return
 	}
@@ -329,16 +331,16 @@ func (p *AudioOptions) ToggleAudio() {
 }
 
 // moveFocus returns the focus state after moving by delta (1 = down, -1 = up)
-// on screen. Focus states run 0 (Audio Track) to focusToggle (toggle), so
-// navigation never skips the Output Device entry.
+// on screen. Focus states run focusToggle (toggle) to maxFocus (Audio Track),
+// so navigation never skips the Output Device entry.
 func moveFocus(current, delta int) int {
 	next := current + delta
-	if next < 0 {
-		next = 0
-	}
-	if next > focusToggle {
+	if next < focusToggle {
 		next = focusToggle
 	}
+	if next > maxFocus {
+		next = maxFocus
+	}
 	return next
 }
 
@@ -353,10 +355,10 @@ func (p *AudioOptions) HandleEvent(event *sdl.Event) error {
 		switch p.focusState {
 		case focusToggle:
 			p.ToggleAudio()
-		case 0:
-			p.Context.NavigateTo(TRACKS)
 		case 1:
 			p.Context.NavigateTo(AUDIO_DEVICES)
+		case 2:
+			p.Context.NavigateTo(TRACKS)
 		}
 
 	case sdl.K_DOWN: