home/src/insert_completer.hh

119 lines
3.0 KiB
C++

#ifndef insert_completer_hh_INCLUDED
#define insert_completer_hh_INCLUDED
#include "option_manager.hh"
#include "option.hh"
#include "display_buffer.hh"
#include "vector.hh"
#include "optional.hh"
namespace Kakoune
{
struct SelectionList;
struct Key;
class FaceRegistry;
struct InsertCompleterDesc
{
enum Mode
{
Word,
Option,
Filename,
Line
};
bool operator==(const InsertCompleterDesc& other) const
{ return mode == other.mode and param == other.param; }
bool operator!=(const InsertCompleterDesc& other) const
{ return not (*this == other); }
Mode mode;
Optional<String> param;
};
using InsertCompleterDescList = Vector<InsertCompleterDesc, MemoryDomain::Options>;
String option_to_string(const InsertCompleterDesc& opt);
InsertCompleterDesc option_from_string(Meta::Type<InsertCompleterDesc>, StringView str);
inline StringView option_type_name(Meta::Type<InsertCompleterDesc>)
{
return "completer";
}
using CompletionCandidate = std::tuple<String, String, String>;
using CompletionList = PrefixedList<String, CompletionCandidate>;
inline StringView option_type_name(Meta::Type<CompletionList>)
{
return "completions";
}
struct InsertCompletion
{
struct Candidate
{
String completion;
String docstring;
DisplayLine menu_entry;
bool operator==(const Candidate& other) const { return completion == other.completion; }
bool operator<(const Candidate& other) const { return completion < other.completion; }
};
using CandidateList = Vector<Candidate, MemoryDomain::Completion>;
CandidateList candidates;
BufferCoord begin;
BufferCoord end;
size_t timestamp = 0;
bool is_valid() const { return not candidates.empty(); }
};
class InsertCompleter : public OptionManagerWatcher
{
public:
InsertCompleter(Context& context);
InsertCompleter(const InsertCompleter&) = delete;
InsertCompleter& operator=(const InsertCompleter&) = delete;
~InsertCompleter();
void select(int index, bool relative, Vector<Key>& keystrokes);
void update();
void reset();
void explicit_file_complete();
void explicit_word_buffer_complete();
void explicit_word_all_complete();
void explicit_line_buffer_complete();
void explicit_line_all_complete();
private:
bool setup_ifn();
template<typename Func>
bool try_complete(Func complete_func);
void on_option_changed(const Option& opt) override;
void menu_show();
Context& m_context;
OptionManager& m_options;
const FaceRegistry& m_faces;
InsertCompletion m_completions;
int m_current_candidate = -1;
using CompleteFunc = InsertCompletion (const SelectionList& sels,
const OptionManager& options,
const FaceRegistry& faces);
CompleteFunc* m_explicit_completer = nullptr;
};
}
#endif // insert_completer_hh_INCLUDED