From afa333e4ed85c9b439c6ceb1a2f91e5d5fc87fc9 Mon Sep 17 00:00:00 2001
From: leosun <leosunsl@outlook.com>
Date: Wed, 25 Feb 2026 06:37:18 +0000
Subject: [PATCH] fix: allow backspace to delete characters in input fields

Previously, pressing backspace while typing in an input field (e.g., when
adding a new SSH host) would switch tabs instead of deleting characters.
This was problematic especially on Windows where backspace is commonly
used for text editing.

Now the app checks if the user is focused on an input field before
capturing Ctrl+H for tab switching. If in an input field, backspace
works normally for text editing.

Fixes #92
---
 internal/adapters/ui/server_form.go | 30 +++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/internal/adapters/ui/server_form.go b/internal/adapters/ui/server_form.go
index 286b47f..72c12eb 100644
--- a/internal/adapters/ui/server_form.go
+++ b/internal/adapters/ui/server_form.go
@@ -526,6 +526,11 @@ func (sf *ServerForm) setupKeyboardShortcuts() {
 	sf.Flex.SetInputCapture(func(event *tcell.EventKey) *tcell.EventKey {
 		// Help panel is always visible - no toggle needed
 
+		// Check if user is focused on an input field - allow normal key handling
+		if sf.isInputFieldFocused() {
+			return event
+		}
+
 		// Check for Ctrl key combinations with regular keys
 		if event.Key() == tcell.KeyRune && event.Modifiers()&tcell.ModCtrl != 0 {
 			switch event.Rune() {
@@ -574,6 +579,11 @@ func (sf *ServerForm) setupKeyboardShortcuts() {
 // setupFormShortcuts sets up keyboard shortcuts for a form
 func (sf *ServerForm) setupFormShortcuts(form *tview.Form) {
 	form.SetInputCapture(func(event *tcell.EventKey) *tcell.EventKey {
+		// Check if user is focused on an input field - allow normal key handling
+		if sf.isInputFieldFocused() {
+			return event
+		}
+
 		// Check for Ctrl key combinations
 		if event.Key() == tcell.KeyRune && event.Modifiers()&tcell.ModCtrl != 0 {
 			switch event.Rune() {
@@ -612,6 +622,26 @@ func (sf *ServerForm) setupFormShortcuts(form *tview.Form) {
 	})
 }
 
+// isInputFieldFocused checks if the current focus is on an input field
+// Returns true if the user is typing in an input field, false otherwise
+func (sf *ServerForm) isInputFieldFocused() bool {
+	if sf.app == nil {
+		return false
+	}
+
+	focused := sf.app.GetFocus()
+	if focused == nil {
+		return false
+	}
+
+	switch focused.(type) {
+	case *tview.InputField, *tview.TextArea:
+		return true
+	default:
+		return false
+	}
+}
+
 // createOptionsWithDefault creates dropdown options with default value indicated
 func createOptionsWithDefault(fieldName string, baseOptions []string) []string {
 	defaultValue, hasDefault := sshDefaults[fieldName]