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