Replace textInputSupported flag

internal/page/wifiSetupPage.go

@@ -37,7 +37,8 @@ const (
 
 type WiFiSetupPage struct {
 	Base
-	applicationFont *fontManager.FontEntry
+	applicationFont    *fontManager.FontEntry
+	textInputSupported bool
 
 	// UI elements
 	BaseFontSize         int
@@ -134,6 +135,7 @@ func (p *WiFiSetupPage) HandleEvent(event *sdl.Event) error {
 		// SDL fires TextInputEvent for every printable character typed.
 		// This is the correct SDL2 way — no manual keycode mapping needed.
 		if p.isEnteringPassword {
+			p.textInputSupported = true
 			p.passwordInput += e.GetText()
 			p.rebuildPasswordTexture()
 		}
@@ -158,7 +160,6 @@ func (p *WiFiSetupPage) handlePasswordKey(sym sdl.Keycode) {
 
 	case sdl.K_BACKSPACE:
 		if len(p.passwordInput) > 0 {
-			// Trim one rune safely
 			runes := []rune(p.passwordInput)
 			p.passwordInput = string(runes[:len(runes)-1])
 			p.rebuildPasswordTexture()
@@ -213,6 +214,7 @@ func (p *WiFiSetupPage) handleNavKey(sym sdl.Keycode) {
 func (p *WiFiSetupPage) enterPasswordMode() {
 	keybinds.Enabled = false
 	p.isEnteringPassword = true
+	p.textInputSupported = false
 	p.rebuildPasswordPromptTexture()
 	p.rebuildPasswordTexture()
 	sdl.StartTextInput()