move ncurses function to ncurses.{cc,hh}
This commit is contained in:
Maxime Coste
parent
d548037922
commit
7026693ecd
402
src/main.cc
402
src/main.cc
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@ -13,13 +13,10 @@
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#include "filter_registry.hh"
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#include "hooks_manager.hh"
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#include "context.hh"
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#include "keys.hh"
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#include "ncurses.hh"
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#include <unordered_map>
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#include <map>
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#include <sstream>
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#include <boost/regex.hpp>
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#include <ncurses.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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@ -27,356 +24,28 @@
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#include <mach-o/dyld.h>
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#endif
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#define CTRL(x) x - 'a' + 1
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using namespace Kakoune;
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using namespace std::placeholders;
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void set_attribute(int attribute, bool on)
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{
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if (on)
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attron(attribute);
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else
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attroff(attribute);
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}
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int nc_color(Color color)
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{
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switch (color)
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{
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case Color::Black: return COLOR_BLACK;
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case Color::Red: return COLOR_RED;
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case Color::Green: return COLOR_GREEN;
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case Color::Yellow: return COLOR_YELLOW;
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case Color::Blue: return COLOR_BLUE;
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case Color::Magenta: return COLOR_MAGENTA;
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case Color::Cyan: return COLOR_CYAN;
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case Color::White: return COLOR_WHITE;
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case Color::Default:
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default:
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return COLOR_BLACK;
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}
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}
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void set_color(Color fg_color, Color bg_color)
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{
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static std::map<std::pair<Color, Color>, int> colorpairs;
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static int current_pair = -1;
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static int next_pair = 1;
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if (current_pair != -1)
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attroff(COLOR_PAIR(current_pair));
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if (fg_color == Color::Default and bg_color == Color::Default)
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return;
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std::pair<Color, Color> colorpair(fg_color, bg_color);
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auto it = colorpairs.find(colorpair);
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if (it != colorpairs.end())
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{
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current_pair = it->second;
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attron(COLOR_PAIR(it->second));
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}
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else
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{
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init_pair(next_pair, nc_color(fg_color), nc_color(bg_color));
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colorpairs[colorpair] = next_pair;
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current_pair = next_pair;
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attron(COLOR_PAIR(next_pair));
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++next_pair;
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}
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}
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void draw_window(Window& window)
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{
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int max_x,max_y;
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getmaxyx(stdscr, max_y, max_x);
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max_y -= 1;
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window.set_dimensions(DisplayCoord(max_y, max_x));
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window.update_display_buffer();
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DisplayCoord position;
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for (const DisplayAtom& atom : window.display_buffer())
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{
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assert(position == atom.coord());
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const std::string content = atom.content();
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set_attribute(A_UNDERLINE, atom.attribute() & Underline);
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set_attribute(A_REVERSE, atom.attribute() & Reverse);
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set_attribute(A_BLINK, atom.attribute() & Blink);
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set_attribute(A_BOLD, atom.attribute() & Bold);
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set_color(atom.fg_color(), atom.bg_color());
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size_t pos = 0;
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size_t end;
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while (true)
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{
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move(position.line, position.column);
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clrtoeol();
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end = content.find_first_of('\n', pos);
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std::string line = content.substr(pos, end - pos);
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addstr(line.c_str());
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if (end != std::string::npos)
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{
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addch(' ');
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position.line = position.line + 1;
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position.column = 0;
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pos = end + 1;
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if (position.line >= max_y)
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break;
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}
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else
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{
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position.column += line.length();
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break;
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}
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}
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if (position.line >= max_y)
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break;
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}
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set_attribute(A_UNDERLINE, 0);
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set_attribute(A_REVERSE, 0);
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set_attribute(A_BLINK, 0);
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set_attribute(A_BOLD, 0);
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set_color(Color::Blue, Color::Black);
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while (++position.line < max_y)
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{
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move(position.line, 0);
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clrtoeol();
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addch('~');
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}
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set_color(Color::Cyan, Color::Black);
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std::string status_line = window.status_line();
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static int last_status_length = 0;
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move(max_y, max_x - last_status_length);
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clrtoeol();
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move(max_y, max_x - status_line.length());
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addstr(status_line.c_str());
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last_status_length = status_line.length();
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const DisplayCoord& cursor_position = window.cursor_position();
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move(cursor_position.line, cursor_position.column);
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}
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void draw_editor_ifn(Editor& editor)
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{
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Window* window = dynamic_cast<Window*>(&editor);
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if (window)
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draw_window(*window);
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NCurses::draw_window(*window);
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}
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Key ncurses_get_key()
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{
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char c = getch();
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Key::Modifiers modifiers = Key::Modifiers::None;
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if (c > 0 and c < 27)
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{
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modifiers = Key::Modifiers::Control;
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c = c - 1 + 'a';
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}
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else if (c == 27)
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{
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timeout(0);
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char new_c = getch();
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timeout(-1);
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if (new_c != ERR)
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{
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c = new_c;
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modifiers = Key::Modifiers::Alt;
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}
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}
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return Key(modifiers, c);
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}
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void init_ncurses()
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{
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initscr();
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cbreak();
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noecho();
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nonl();
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intrflush(stdscr, false);
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keypad(stdscr, true);
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curs_set(0);
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start_color();
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ESCDELAY=25;
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}
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void deinit_ncurses()
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{
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endwin();
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}
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struct prompt_aborted {};
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std::string ncurses_prompt(const std::string& text, Completer completer = complete_nothing)
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{
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curs_set(2);
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auto restore_cursor = on_scope_end([]() { curs_set(0); });
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int max_x, max_y;
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getmaxyx(stdscr, max_y, max_x);
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move(max_y-1, 0);
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addstr(text.c_str());
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clrtoeol();
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size_t cursor_pos = 0;
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Completions completions;
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int current_completion = -1;
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std::string text_before_completion;
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std::string result;
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std::string saved_result;
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static std::unordered_map<std::string, std::vector<std::string>> history_per_prompt;
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std::vector<std::string>& history = history_per_prompt[text];
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auto history_it = history.end();
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while (true)
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{
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int c = getch();
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switch (c)
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{
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case '\r':
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{
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std::vector<std::string>::iterator it;
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while ((it = find(history, result)) != history.end())
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history.erase(it);
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history.push_back(result);
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return result;
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}
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case KEY_UP:
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if (history_it != history.begin())
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{
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if (history_it == history.end())
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saved_result = result;
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--history_it;
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result = *history_it;
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cursor_pos = result.length();
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}
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break;
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case KEY_DOWN:
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if (history_it != history.end())
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{
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++history_it;
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if (history_it != history.end())
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result = *history_it;
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else
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result = saved_result;
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cursor_pos = result.length();
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}
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break;
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case KEY_LEFT:
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if (cursor_pos > 0)
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--cursor_pos;
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break;
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case KEY_RIGHT:
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if (cursor_pos < result.length())
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++cursor_pos;
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break;
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case KEY_BACKSPACE:
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if (cursor_pos != 0)
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{
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result = result.substr(0, cursor_pos - 1)
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+ result.substr(cursor_pos, std::string::npos);
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--cursor_pos;
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}
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current_completion = -1;
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break;
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case CTRL('r'):
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{
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c = getch();
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std::string reg = RegisterManager::instance()[c].get();
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current_completion = -1;
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result = result.substr(0, cursor_pos) + reg + result.substr(cursor_pos, std::string::npos);
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cursor_pos += reg.length();
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}
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break;
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case 27:
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throw prompt_aborted();
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case '\t':
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{
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if (current_completion == -1)
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{
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completions = completer(result, cursor_pos);
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if (completions.candidates.empty())
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break;
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text_before_completion = result.substr(completions.start,
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completions.end - completions.start);
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}
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++current_completion;
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std::string completion;
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if (current_completion >= completions.candidates.size())
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{
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if (current_completion == completions.candidates.size() and
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std::find(completions.candidates.begin(), completions.candidates.end(), text_before_completion) == completions.candidates.end())
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completion = text_before_completion;
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else
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{
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current_completion = 0;
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completion = completions.candidates[0];
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}
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}
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else
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completion = completions.candidates[current_completion];
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move(max_y-1, text.length());
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result = result.substr(0, completions.start) + completion;
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cursor_pos = completions.start + completion.length();
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break;
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}
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default:
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current_completion = -1;
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result = result.substr(0, cursor_pos) + (char)c + result.substr(cursor_pos, std::string::npos);
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++cursor_pos;
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}
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move(max_y - 1, text.length());
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clrtoeol();
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addstr(result.c_str());
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move(max_y - 1, text.length() + cursor_pos);
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refresh();
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}
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return result;
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}
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static std::function<std::string (const std::string&, Completer)> prompt_func = ncurses_prompt;
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PromptFunc prompt_func;
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std::string prompt(const std::string& text, Completer completer = complete_nothing)
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{
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return prompt_func(text, completer);
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}
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static std::function<Key ()> get_key_func = ncurses_get_key;
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GetKeyFunc get_key_func;
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Key get_key()
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{
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return get_key_func();
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}
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void print_status(const std::string& status)
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{
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int x,y;
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getmaxyx(stdscr, y, x);
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move(y-1, 0);
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clrtoeol();
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addstr(status.c_str());
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}
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struct InsertSequence
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{
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IncrementalInserter::Mode mode;
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@ -523,7 +192,7 @@ Buffer* open_or_create(const std::string& filename)
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}
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catch (file_not_found& what)
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{
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print_status("new file " + filename);
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NCurses::print_status("new file " + filename);
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buffer = new Buffer(filename, Buffer::Type::NewFile);
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}
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return buffer;
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@ -584,7 +253,7 @@ void quit(const CommandParameters& params, const Context& context)
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{
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if (buffer.type() != Buffer::Type::Scratch and buffer.is_modified())
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{
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print_status("modified buffer remaining");
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NCurses::print_status("modified buffer remaining");
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return;
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}
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}
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@ -606,7 +275,7 @@ void show_buffer(const CommandParameters& params, const Context& context)
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Buffer* buffer = BufferManager::instance().get_buffer(params[0]);
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if (not buffer)
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print_status("buffer " + params[0] + " does not exists");
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NCurses::print_status("buffer " + params[0] + " does not exists");
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else
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main_context = Context(*buffer->get_or_create_window());
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}
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@ -625,7 +294,7 @@ void add_highlighter(const CommandParameters& params, const Context& context)
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}
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catch (runtime_error& err)
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{
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print_status("error: " + err.description());
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NCurses::print_status("error: " + err.description());
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}
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}
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@ -645,7 +314,7 @@ void add_group_highlighter(const CommandParameters& params, const Context& conte
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}
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catch (runtime_error& err)
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{
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print_status("error: " + err.description());
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NCurses::print_status("error: " + err.description());
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}
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}
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@ -669,7 +338,7 @@ void rm_group_highlighter(const CommandParameters& params, const Context& contex
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}
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catch (runtime_error& err)
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{
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print_status("error: " + err.description());
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NCurses::print_status("error: " + err.description());
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}
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}
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void add_filter(const CommandParameters& params, const Context& context)
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@ -686,7 +355,7 @@ void add_filter(const CommandParameters& params, const Context& context)
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}
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catch (runtime_error& err)
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{
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print_status("error: " + err.description());
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NCurses::print_status("error: " + err.description());
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}
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}
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@ -716,7 +385,7 @@ void add_hook(const CommandParameters& params, const Context& context)
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else if (params[0] == "window")
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context.window().hooks_manager().add_hook(params[1], hook_func);
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else
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print_status("error: no such hook container " + params[0]);
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NCurses::print_status("error: no such hook container " + params[0]);
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}
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void define_command(const CommandParameters& params, const Context& context)
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@ -769,7 +438,7 @@ void echo_message(const CommandParameters& params, const Context& context)
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std::string message;
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for (auto& param : params)
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message += param + " ";
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print_status(message);
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NCurses::print_status(message);
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}
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void exec_commands_in_file(const CommandParameters& params,
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@ -805,7 +474,7 @@ void exec_commands_in_file(const CommandParameters& params,
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if (end_pos == length)
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{
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print_status(std::string("unterminated '") + delimiter + "' string");
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NCurses::print_status(std::string("unterminated '") + delimiter + "' string");
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return;
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}
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@ -829,7 +498,7 @@ void exec_commands_in_file(const CommandParameters& params,
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if (end_pos == length)
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{
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if (cat_with_previous)
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print_status("while executing commands in \"" + params[0] +
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NCurses::print_status("while executing commands in \"" + params[0] +
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"\": last command not complete");
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break;
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}
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@ -947,7 +616,7 @@ void do_search_next(Editor& editor)
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if (not ex.empty())
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editor.select(std::bind(select_next_match, _1, ex));
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else
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print_status("no search pattern");
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NCurses::print_status("no search pattern");
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}
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void do_yank(Editor& editor, int count)
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@ -1020,7 +689,8 @@ void do_join(Editor& editor, int count)
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template<bool inside>
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void do_select_surrounding(Editor& editor, int count)
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{
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char id = getch();
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Key key = get_key();
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const char id = key.key;
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static const std::unordered_map<char, std::pair<char, char>> id_to_matching =
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{
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@ -1053,10 +723,10 @@ std::unordered_map<Key, std::function<void (Editor& editor, int count)>> keymap
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{ { Key::Modifiers::None, 'K' }, [](Editor& editor, int count) { editor.move_selections(BufferCoord(-std::max(count,1), 0), true); } },
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{ { Key::Modifiers::None, 'L' }, [](Editor& editor, int count) { editor.move_selections(BufferCoord(0, std::max(count,1)), true); } },
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|
||||
{ { Key::Modifiers::None, 't' }, [](Editor& editor, int count) { editor.select(std::bind(select_to, _1, getch(), count, false)); } },
|
||||
{ { Key::Modifiers::None, 'f' }, [](Editor& editor, int count) { editor.select(std::bind(select_to, _1, getch(), count, true)); } },
|
||||
{ { Key::Modifiers::None, 'T' }, [](Editor& editor, int count) { editor.select(std::bind(select_to, _1, getch(), count, false), true); } },
|
||||
{ { Key::Modifiers::None, 'F' }, [](Editor& editor, int count) { editor.select(std::bind(select_to, _1, getch(), count, true), true); } },
|
||||
{ { Key::Modifiers::None, 't' }, [](Editor& editor, int count) { editor.select(std::bind(select_to, _1, get_key().key, count, false)); } },
|
||||
{ { Key::Modifiers::None, 'f' }, [](Editor& editor, int count) { editor.select(std::bind(select_to, _1, get_key().key, count, true)); } },
|
||||
{ { Key::Modifiers::None, 'T' }, [](Editor& editor, int count) { editor.select(std::bind(select_to, _1, get_key().key, count, false), true); } },
|
||||
{ { Key::Modifiers::None, 'F' }, [](Editor& editor, int count) { editor.select(std::bind(select_to, _1, get_key().key, count, true), true); } },
|
||||
|
||||
{ { Key::Modifiers::None, 'd' }, do_erase },
|
||||
{ { Key::Modifiers::None, 'c' }, do_change },
|
||||
|
|
@ -1097,16 +767,16 @@ std::unordered_map<Key, std::function<void (Editor& editor, int count)>> keymap
|
|||
{ { Key::Modifiers::None, 'M' }, [](Editor& editor, int count) { editor.select(select_matching, true); } },
|
||||
{ { Key::Modifiers::None, '/' }, [](Editor& editor, int count) { do_search(editor); } },
|
||||
{ { Key::Modifiers::None, 'n' }, [](Editor& editor, int count) { do_search_next(editor); } },
|
||||
{ { Key::Modifiers::None, 'u' }, [](Editor& editor, int count) { do { if (not editor.undo()) { print_status("nothing left to undo"); break; } } while(--count > 0); } },
|
||||
{ { Key::Modifiers::None, 'U' }, [](Editor& editor, int count) { do { if (not editor.redo()) { print_status("nothing left to redo"); break; } } while(--count > 0); } },
|
||||
{ { Key::Modifiers::None, 'u' }, [](Editor& editor, int count) { do { if (not editor.undo()) { NCurses::print_status("nothing left to undo"); break; } } while(--count > 0); } },
|
||||
{ { Key::Modifiers::None, 'U' }, [](Editor& editor, int count) { do { if (not editor.redo()) { NCurses::print_status("nothing left to redo"); break; } } while(--count > 0); } },
|
||||
|
||||
{ { Key::Modifiers::Alt, 'i' }, do_select_surrounding<true> },
|
||||
{ { Key::Modifiers::Alt, 'a' }, do_select_surrounding<false> },
|
||||
|
||||
{ { Key::Modifiers::Alt, 't' }, [](Editor& editor, int count) { editor.select(std::bind(select_to_reverse, _1, getch(), count, false)); } },
|
||||
{ { Key::Modifiers::Alt, 'f' }, [](Editor& editor, int count) { editor.select(std::bind(select_to_reverse, _1, getch(), count, true)); } },
|
||||
{ { Key::Modifiers::Alt, 'T' }, [](Editor& editor, int count) { editor.select(std::bind(select_to_reverse, _1, getch(), count, false), true); } },
|
||||
{ { Key::Modifiers::Alt, 'F' }, [](Editor& editor, int count) { editor.select(std::bind(select_to_reverse, _1, getch(), count, true), true); } },
|
||||
{ { Key::Modifiers::Alt, 't' }, [](Editor& editor, int count) { editor.select(std::bind(select_to_reverse, _1, get_key().key, count, false)); } },
|
||||
{ { Key::Modifiers::Alt, 'f' }, [](Editor& editor, int count) { editor.select(std::bind(select_to_reverse, _1, get_key().key, count, true)); } },
|
||||
{ { Key::Modifiers::Alt, 'T' }, [](Editor& editor, int count) { editor.select(std::bind(select_to_reverse, _1, get_key().key, count, false), true); } },
|
||||
{ { Key::Modifiers::Alt, 'F' }, [](Editor& editor, int count) { editor.select(std::bind(select_to_reverse, _1, get_key().key, count, true), true); } },
|
||||
|
||||
{ { Key::Modifiers::Alt, 'w' }, [](Editor& editor, int count) { do { editor.select(select_to_next_WORD); } while(--count > 0); } },
|
||||
{ { Key::Modifiers::Alt, 'e' }, [](Editor& editor, int count) { do { editor.select(select_to_next_WORD_end); } while(--count > 0); } },
|
||||
|
|
@ -1196,7 +866,7 @@ void exec_string(const CommandParameters& params,
|
|||
|
||||
int main(int argc, char* argv[])
|
||||
{
|
||||
init_ncurses();
|
||||
NCurses::init(prompt_func, get_key_func);
|
||||
|
||||
CommandManager command_manager;
|
||||
BufferManager buffer_manager;
|
||||
|
|
@ -1285,7 +955,7 @@ int main(int argc, char* argv[])
|
|||
}
|
||||
catch (Kakoune::runtime_error& error)
|
||||
{
|
||||
print_status(error.description());
|
||||
NCurses::print_status(error.description());
|
||||
}
|
||||
|
||||
try
|
||||
|
|
@ -1295,7 +965,7 @@ int main(int argc, char* argv[])
|
|||
auto buffer = (argc > 1) ? open_or_create(argv[1]) : new Buffer("*scratch*", Buffer::Type::Scratch);
|
||||
main_context = Context(*buffer->get_or_create_window());
|
||||
|
||||
draw_window(main_context.window());
|
||||
NCurses::draw_window(main_context.window());
|
||||
int count = 0;
|
||||
while(not quit_requested)
|
||||
{
|
||||
|
|
@ -1310,28 +980,28 @@ int main(int argc, char* argv[])
|
|||
if (it != keymap.end())
|
||||
{
|
||||
it->second(main_context.window(), count);
|
||||
draw_window(main_context.window());
|
||||
NCurses::draw_window(main_context.window());
|
||||
}
|
||||
count = 0;
|
||||
}
|
||||
}
|
||||
catch (Kakoune::runtime_error& error)
|
||||
{
|
||||
print_status(error.description());
|
||||
NCurses::print_status(error.description());
|
||||
}
|
||||
}
|
||||
deinit_ncurses();
|
||||
NCurses::deinit();
|
||||
}
|
||||
catch (Kakoune::exception& error)
|
||||
{
|
||||
deinit_ncurses();
|
||||
NCurses::deinit();
|
||||
puts("uncaught exception:\n");
|
||||
puts(error.description().c_str());
|
||||
return -1;
|
||||
}
|
||||
catch (...)
|
||||
{
|
||||
deinit_ncurses();
|
||||
NCurses::deinit();
|
||||
throw;
|
||||
}
|
||||
return 0;
|
||||
|
|
|
|||
342
src/ncurses.cc
Normal file
342
src/ncurses.cc
Normal file
|
|
@ -0,0 +1,342 @@
|
|||
#include "ncurses.hh"
|
||||
|
||||
#include "window.hh"
|
||||
#include "register_manager.hh"
|
||||
|
||||
#include <ncurses.h>
|
||||
#include <map>
|
||||
|
||||
#define CTRL(x) x - 'a' + 1
|
||||
|
||||
namespace Kakoune
|
||||
{
|
||||
namespace NCurses
|
||||
{
|
||||
|
||||
static void set_attribute(int attribute, bool on)
|
||||
{
|
||||
if (on)
|
||||
attron(attribute);
|
||||
else
|
||||
attroff(attribute);
|
||||
}
|
||||
|
||||
static int nc_color(Color color)
|
||||
{
|
||||
switch (color)
|
||||
{
|
||||
case Color::Black: return COLOR_BLACK;
|
||||
case Color::Red: return COLOR_RED;
|
||||
case Color::Green: return COLOR_GREEN;
|
||||
case Color::Yellow: return COLOR_YELLOW;
|
||||
case Color::Blue: return COLOR_BLUE;
|
||||
case Color::Magenta: return COLOR_MAGENTA;
|
||||
case Color::Cyan: return COLOR_CYAN;
|
||||
case Color::White: return COLOR_WHITE;
|
||||
|
||||
case Color::Default:
|
||||
default:
|
||||
return COLOR_BLACK;
|
||||
}
|
||||
}
|
||||
|
||||
static void set_color(Color fg_color, Color bg_color)
|
||||
{
|
||||
static std::map<std::pair<Color, Color>, int> colorpairs;
|
||||
static int current_pair = -1;
|
||||
static int next_pair = 1;
|
||||
|
||||
if (current_pair != -1)
|
||||
attroff(COLOR_PAIR(current_pair));
|
||||
|
||||
if (fg_color == Color::Default and bg_color == Color::Default)
|
||||
return;
|
||||
|
||||
std::pair<Color, Color> colorpair(fg_color, bg_color);
|
||||
auto it = colorpairs.find(colorpair);
|
||||
if (it != colorpairs.end())
|
||||
{
|
||||
current_pair = it->second;
|
||||
attron(COLOR_PAIR(it->second));
|
||||
}
|
||||
else
|
||||
{
|
||||
init_pair(next_pair, nc_color(fg_color), nc_color(bg_color));
|
||||
colorpairs[colorpair] = next_pair;
|
||||
current_pair = next_pair;
|
||||
attron(COLOR_PAIR(next_pair));
|
||||
++next_pair;
|
||||
}
|
||||
}
|
||||
|
||||
void draw_window(Window& window)
|
||||
{
|
||||
int max_x,max_y;
|
||||
getmaxyx(stdscr, max_y, max_x);
|
||||
max_y -= 1;
|
||||
|
||||
window.set_dimensions(DisplayCoord(max_y, max_x));
|
||||
window.update_display_buffer();
|
||||
|
||||
DisplayCoord position;
|
||||
for (const DisplayAtom& atom : window.display_buffer())
|
||||
{
|
||||
assert(position == atom.coord());
|
||||
const std::string content = atom.content();
|
||||
|
||||
set_attribute(A_UNDERLINE, atom.attribute() & Underline);
|
||||
set_attribute(A_REVERSE, atom.attribute() & Reverse);
|
||||
set_attribute(A_BLINK, atom.attribute() & Blink);
|
||||
set_attribute(A_BOLD, atom.attribute() & Bold);
|
||||
|
||||
set_color(atom.fg_color(), atom.bg_color());
|
||||
|
||||
size_t pos = 0;
|
||||
size_t end;
|
||||
while (true)
|
||||
{
|
||||
move(position.line, position.column);
|
||||
clrtoeol();
|
||||
end = content.find_first_of('\n', pos);
|
||||
std::string line = content.substr(pos, end - pos);
|
||||
addstr(line.c_str());
|
||||
|
||||
if (end != std::string::npos)
|
||||
{
|
||||
addch(' ');
|
||||
position.line = position.line + 1;
|
||||
position.column = 0;
|
||||
pos = end + 1;
|
||||
|
||||
if (position.line >= max_y)
|
||||
break;
|
||||
}
|
||||
else
|
||||
{
|
||||
position.column += line.length();
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (position.line >= max_y)
|
||||
break;
|
||||
}
|
||||
|
||||
set_attribute(A_UNDERLINE, 0);
|
||||
set_attribute(A_REVERSE, 0);
|
||||
set_attribute(A_BLINK, 0);
|
||||
set_attribute(A_BOLD, 0);
|
||||
set_color(Color::Blue, Color::Black);
|
||||
while (++position.line < max_y)
|
||||
{
|
||||
move(position.line, 0);
|
||||
clrtoeol();
|
||||
addch('~');
|
||||
}
|
||||
|
||||
set_color(Color::Cyan, Color::Black);
|
||||
std::string status_line = window.status_line();
|
||||
static int last_status_length = 0;
|
||||
move(max_y, max_x - last_status_length);
|
||||
clrtoeol();
|
||||
move(max_y, max_x - status_line.length());
|
||||
addstr(status_line.c_str());
|
||||
last_status_length = status_line.length();
|
||||
|
||||
const DisplayCoord& cursor_position = window.cursor_position();
|
||||
move(cursor_position.line, cursor_position.column);
|
||||
}
|
||||
|
||||
static Key get_key()
|
||||
{
|
||||
char c = getch();
|
||||
|
||||
Key::Modifiers modifiers = Key::Modifiers::None;
|
||||
if (c > 0 and c < 27)
|
||||
{
|
||||
modifiers = Key::Modifiers::Control;
|
||||
c = c - 1 + 'a';
|
||||
}
|
||||
else if (c == 27)
|
||||
{
|
||||
timeout(0);
|
||||
char new_c = getch();
|
||||
timeout(-1);
|
||||
if (new_c != ERR)
|
||||
{
|
||||
c = new_c;
|
||||
modifiers = Key::Modifiers::Alt;
|
||||
}
|
||||
}
|
||||
return Key(modifiers, c);
|
||||
}
|
||||
|
||||
static std::string prompt(const std::string& text, Completer completer)
|
||||
{
|
||||
curs_set(2);
|
||||
auto restore_cursor = on_scope_end([]() { curs_set(0); });
|
||||
|
||||
int max_x, max_y;
|
||||
getmaxyx(stdscr, max_y, max_x);
|
||||
move(max_y-1, 0);
|
||||
addstr(text.c_str());
|
||||
clrtoeol();
|
||||
|
||||
size_t cursor_pos = 0;
|
||||
|
||||
Completions completions;
|
||||
int current_completion = -1;
|
||||
std::string text_before_completion;
|
||||
|
||||
std::string result;
|
||||
std::string saved_result;
|
||||
|
||||
static std::unordered_map<std::string, std::vector<std::string>> history_per_prompt;
|
||||
std::vector<std::string>& history = history_per_prompt[text];
|
||||
auto history_it = history.end();
|
||||
|
||||
while (true)
|
||||
{
|
||||
int c = getch();
|
||||
switch (c)
|
||||
{
|
||||
case '\r':
|
||||
{
|
||||
std::vector<std::string>::iterator it;
|
||||
while ((it = find(history, result)) != history.end())
|
||||
history.erase(it);
|
||||
|
||||
history.push_back(result);
|
||||
return result;
|
||||
}
|
||||
case KEY_UP:
|
||||
if (history_it != history.begin())
|
||||
{
|
||||
if (history_it == history.end())
|
||||
saved_result = result;
|
||||
--history_it;
|
||||
result = *history_it;
|
||||
cursor_pos = result.length();
|
||||
}
|
||||
break;
|
||||
case KEY_DOWN:
|
||||
if (history_it != history.end())
|
||||
{
|
||||
++history_it;
|
||||
if (history_it != history.end())
|
||||
result = *history_it;
|
||||
else
|
||||
result = saved_result;
|
||||
cursor_pos = result.length();
|
||||
}
|
||||
break;
|
||||
case KEY_LEFT:
|
||||
if (cursor_pos > 0)
|
||||
--cursor_pos;
|
||||
break;
|
||||
case KEY_RIGHT:
|
||||
if (cursor_pos < result.length())
|
||||
++cursor_pos;
|
||||
break;
|
||||
case KEY_BACKSPACE:
|
||||
if (cursor_pos != 0)
|
||||
{
|
||||
result = result.substr(0, cursor_pos - 1)
|
||||
+ result.substr(cursor_pos, std::string::npos);
|
||||
|
||||
--cursor_pos;
|
||||
}
|
||||
|
||||
current_completion = -1;
|
||||
break;
|
||||
case CTRL('r'):
|
||||
{
|
||||
c = getch();
|
||||
std::string reg = RegisterManager::instance()[c].get();
|
||||
current_completion = -1;
|
||||
result = result.substr(0, cursor_pos) + reg + result.substr(cursor_pos, std::string::npos);
|
||||
cursor_pos += reg.length();
|
||||
}
|
||||
break;
|
||||
case 27:
|
||||
throw prompt_aborted();
|
||||
case '\t':
|
||||
{
|
||||
if (current_completion == -1)
|
||||
{
|
||||
completions = completer(result, cursor_pos);
|
||||
if (completions.candidates.empty())
|
||||
break;
|
||||
|
||||
text_before_completion = result.substr(completions.start,
|
||||
completions.end - completions.start);
|
||||
}
|
||||
++current_completion;
|
||||
|
||||
std::string completion;
|
||||
if (current_completion >= completions.candidates.size())
|
||||
{
|
||||
if (current_completion == completions.candidates.size() and
|
||||
std::find(completions.candidates.begin(), completions.candidates.end(), text_before_completion) == completions.candidates.end())
|
||||
completion = text_before_completion;
|
||||
else
|
||||
{
|
||||
current_completion = 0;
|
||||
completion = completions.candidates[0];
|
||||
}
|
||||
}
|
||||
else
|
||||
completion = completions.candidates[current_completion];
|
||||
|
||||
move(max_y-1, text.length());
|
||||
result = result.substr(0, completions.start) + completion;
|
||||
cursor_pos = completions.start + completion.length();
|
||||
break;
|
||||
}
|
||||
default:
|
||||
current_completion = -1;
|
||||
result = result.substr(0, cursor_pos) + (char)c + result.substr(cursor_pos, std::string::npos);
|
||||
++cursor_pos;
|
||||
}
|
||||
|
||||
move(max_y - 1, text.length());
|
||||
clrtoeol();
|
||||
addstr(result.c_str());
|
||||
move(max_y - 1, text.length() + cursor_pos);
|
||||
refresh();
|
||||
}
|
||||
return result;
|
||||
}
|
||||
|
||||
void print_status(const std::string& status)
|
||||
{
|
||||
int x,y;
|
||||
getmaxyx(stdscr, y, x);
|
||||
move(y-1, 0);
|
||||
clrtoeol();
|
||||
addstr(status.c_str());
|
||||
}
|
||||
|
||||
void init(PromptFunc& prompt_func, GetKeyFunc& get_key_func)
|
||||
{
|
||||
initscr();
|
||||
cbreak();
|
||||
noecho();
|
||||
nonl();
|
||||
intrflush(stdscr, false);
|
||||
keypad(stdscr, true);
|
||||
curs_set(0);
|
||||
start_color();
|
||||
ESCDELAY=25;
|
||||
|
||||
prompt_func = prompt;
|
||||
get_key_func = get_key;
|
||||
}
|
||||
|
||||
void deinit()
|
||||
{
|
||||
endwin();
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
32
src/ncurses.hh
Normal file
32
src/ncurses.hh
Normal file
|
|
@ -0,0 +1,32 @@
|
|||
#ifndef ncurses_hh_INCLUDED
|
||||
#define ncurses_hh_INCLUDED
|
||||
|
||||
#include <functional>
|
||||
|
||||
#include "keys.hh"
|
||||
#include "completion.hh"
|
||||
|
||||
namespace Kakoune
|
||||
{
|
||||
|
||||
class Window;
|
||||
|
||||
typedef std::function<std::string (const std::string&, Completer)> PromptFunc;
|
||||
typedef std::function<Key ()> GetKeyFunc;
|
||||
|
||||
struct prompt_aborted {};
|
||||
|
||||
namespace NCurses
|
||||
{
|
||||
|
||||
void init(PromptFunc& prompt_func, GetKeyFunc& get_key_func);
|
||||
void deinit();
|
||||
void draw_window(Window& window);
|
||||
void print_status(const std::string& status);
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
#endif // ncurses_hh_INCLUDED
|
||||
|
||||
Loading…
Reference in New Issue
Block a user