Module: Charming::Components::KeyboardHandler

Included in:
List, Table, TextInput, Viewport
Defined in:
lib/charming/components/keyboard_handler.rb

Overview

KeyboardHandler is a mixin module that provides keyboard event dispatch by mapping symbolic key names to private method calls. Implementors must define a constant KEY_ACTIONS as a hash where each key is a symbol (e.g., :up, :down, :enter) and each value is the target method name (e.g., :move_up). Call handle_key(event) with any event object; it uses Charming.key_of to resolve the raw event to a symbol, looks up the corresponding action in KEY_ACTIONS, sends that method on self, and returns :handled if an action was found. Returns nil (via :handled being truthy or not) when no matching key exists.

Instance Method Summary collapse

Instance Method Details

#handle_key(event) ⇒ Object 



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# File 'lib/charming/components/keyboard_handler.rb', line 12

def handle_key(event)
  key = Charming.key_of(event)
  action = self.class.const_get(:KEY_ACTIONS)[key]
  return unless action

  send(action)
  :handled
end