kakoune/src/context.hh

112 lines
2.8 KiB
C++

#ifndef context_hh_INCLUDED
#define context_hh_INCLUDED
#include "dynamic_selection_list.hh"
#include <boost/optional.hpp>
namespace Kakoune
{
class Window;
class Buffer;
class Client;
class InputHandler;
class UserInterface;
class DisplayLine;
class KeymapManager;
// A Context is used to access non singleton objects for various services
// in commands.
//
// The Context object links a Client, a Window, an InputHandler and a
// SelectionList. It may represent an interactive user window, a hook
// execution or a macro replay context.
class Context
{
public:
Context();
Context(InputHandler& input_handler, Buffer& buffer, SelectionList selections, String name = "");
~Context();
Context(const Context&) = delete;
Context& operator=(const Context&) = delete;
Buffer& buffer() const;
bool has_buffer() const { return m_selections; }
Window& window() const;
bool has_window() const { return (bool)m_window; }
Client& client() const;
bool has_client() const { return (bool)m_client; }
InputHandler& input_handler() const;
bool has_input_handler() const { return (bool)m_input_handler; }
UserInterface& ui() const;
bool has_ui() const { return has_client(); }
SelectionList& selections();
const SelectionList& selections() const;
std::vector<String> selections_content() const;
void change_buffer(Buffer& buffer);
void set_client(Client& client);
void set_window(Window& window);
OptionManager& options() const;
HookManager& hooks() const;
KeymapManager& keymaps() const;
void print_status(DisplayLine status) const;
void push_jump();
const DynamicSelectionList& jump_forward();
const DynamicSelectionList& jump_backward();
void forget_jumps_to_buffer(Buffer& buffer);
const String& name() const { return m_name; }
void set_name(String name) { m_name = std::move(name); }
bool is_editing() const { return m_edition_level!= 0; }
void disable_undo_handling() { m_edition_level = -1; }
private:
void begin_edition();
void end_edition();
int m_edition_level = 0;
friend struct ScopedEdition;
safe_ptr<InputHandler> m_input_handler;
safe_ptr<Window> m_window;
safe_ptr<Client> m_client;
friend class Client;
boost::optional<DynamicSelectionList> m_selections;
String m_name;
using JumpList = std::vector<DynamicSelectionList>;
JumpList m_jump_list;
JumpList::iterator m_current_jump = m_jump_list.begin();
};
struct ScopedEdition
{
ScopedEdition(Context& context)
: m_context(context)
{ m_context.begin_edition(); }
~ScopedEdition()
{ m_context.end_edition(); }
Context& context() const { return m_context; }
private:
Context& m_context;
};
}
#endif // context_hh_INCLUDED