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#ifndef input_handler_hh_INCLUDED
#define input_handler_hh_INCLUDED
#include "completion.hh"
#include "context.hh"
#include "face.hh"
#include "normal.hh"
#include "keys.hh"
#include "string.hh"
#include "utils.hh"
#include "safe_ptr.hh"
namespace Kakoune
{
enum class MenuEvent
{
Select,
Abort,
Validate
};
using MenuCallback = std::function<void (int, MenuEvent, Context&)>;
enum class PromptEvent
{
Change,
Abort,
Validate
};
using PromptCallback = std::function<void (StringView, PromptEvent, Context&)>;
using KeyCallback = std::function<void (Key, Context&)>;
class InputMode;
class DisplayLine;
enum class InsertMode : unsigned;
enum class KeymapMode : char;
class InputHandler : public SafeCountable
{
public:
InputHandler(SelectionList selections,
Context::Flags flags = Context::Flags::None,
String name = "");
~InputHandler();
// switch to insert mode
void insert(InsertMode mode);
// repeat last insert mode key sequence
void repeat_last_insert();
// enter prompt mode, callback is called on each change,
// abort or validation with corresponding PromptEvent value
// returns to normal mode after validation if callback does
// not change the mode itself
void prompt(StringView prompt, String initstr,
Face prompt_face, Completer completer,
PromptCallback callback);
void set_prompt_face(Face prompt_face);
// enter menu mode, callback is called on each selection change,
// abort or validation with corresponding MenuEvent value
// returns to normal mode after validation if callback does
// not change the mode itself
void menu(ArrayView<const String> choices, MenuCallback callback);
// execute callback on next keypress and returns to normal mode
// if callback does not change the mode itself
void on_next_key(KeymapMode mode, KeyCallback callback);
// process the given key
void handle_key(Key key);
void start_recording(char reg);
bool is_recording() const;
void stop_recording();
char recording_reg() const { return m_recording_reg; }
void reset_normal_mode();
Context& context() { return m_context; }
const Context& context() const { return m_context; }
DisplayLine mode_line() const;
private:
Context m_context;
friend class InputMode;
Vector<std::unique_ptr<InputMode>> m_mode_stack;
InputMode& current_mode() const { return *m_mode_stack.back(); }
void push_mode(InputMode* new_mode);
std::unique_ptr<InputMode> pop_mode(InputMode* current_mode);
using Insertion = std::pair<InsertMode, Vector<Key>>;
Insertion m_last_insert = {InsertMode::Insert, {}};
char m_recording_reg = 0;
String m_recorded_keys;
int m_handle_key_level = 0;
};
}
#endif // input_handler_hh_INCLUDED
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