system/ui: fix navigation key repeat in input box (#35302)

fix navigation key repeat in input fields

system/ui/lib/inputbox.py

@@ -13,7 +13,7 @@ class InputBox:
     self._last_key_pressed = 0
     self._key_press_time = 0
     self._repeat_delay = 30
-    self._repeat_rate = 5
+    self._repeat_rate = 4
 
   @property
   def text(self):
@@ -119,22 +119,29 @@ class InputBox:
         self.set_cursor_position(0)
 
   def _handle_keyboard_input(self):
-    """Process keyboard input."""
+    # Handle navigation keys
     key = rl.get_key_pressed()
+    if key != 0:
+      self._process_key(key)
+      if key in (rl.KEY_LEFT, rl.KEY_RIGHT, rl.KEY_BACKSPACE, rl.KEY_DELETE):
+        self._last_key_pressed = key
+        self._key_press_time = 0
 
-    # Handle key repeats
-    if key == self._last_key_pressed and key != 0:
+    # Handle repeats for held keys
+    elif self._last_key_pressed != 0:
+      if rl.is_key_down(self._last_key_pressed):
         self._key_press_time += 1
         if self._key_press_time > self._repeat_delay and self._key_press_time % self._repeat_rate == 0:
-        # Process repeated key
-        pass
+          self._process_key(self._last_key_pressed)
       else:
-        return  # Skip processing until repeat triggers
-    else:
-      self._last_key_pressed = key
-      self._key_press_time = 0
+        self._last_key_pressed = 0
 
-    # Handle navigation keys
+    # Handle text input
+    char = rl.get_char_pressed()
+    if char != 0 and char >= 32:  # Filter out control characters
+      self.add_char_at_cursor(chr(char))
+
+  def _process_key(self, key):
     if key == rl.KEY_LEFT:
       if self._cursor_position > 0:
         self.set_cursor_position(self._cursor_position - 1)
@@ -149,8 +156,3 @@ class InputBox:
       self.set_cursor_position(0)
     elif key == rl.KEY_END:
       self.set_cursor_position(len(self._input_text))
-
-    # Handle text input
-    char = rl.get_char_pressed()
-    if char != 0 and char >= 32:  # Filter out control characters
-      self.add_char_at_cursor(chr(char))