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irssi/src/fe-text/gui-readline.c
Timo Sirainen ef6b0a1ad9 Ctrl-D = delete
Ctrl-K = erase the rest of the line
(patches by Tommi Komulainen)


git-svn-id: http://svn.irssi.org/repos/irssi/trunk@202 dbcabf3a-b0e7-0310-adc4-f8d773084564
2000-05-09 12:55:38 +00:00

466 lines
11 KiB
C

/*
gui-readline.c : irssi
Copyright (C) 1999 Timo Sirainen
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "module.h"
#include "signals.h"
#include "server.h"
#include "misc.h"
#include "completion.h"
#include "command-history.h"
#include "keyboard.h"
#include "translation.h"
#include "windows.h"
#include "screen.h"
#include "gui-entry.h"
#include "gui-windows.h"
#include <signal.h>
typedef void (*ENTRY_REDIRECT_KEY_FUNC) (int key, void *data, SERVER_REC *server, WI_ITEM_REC *item);
typedef void (*ENTRY_REDIRECT_ENTRY_FUNC) (const char *line, void *data, SERVER_REC *server, WI_ITEM_REC *item);
typedef struct {
SIGNAL_FUNC func;
int key;
void *data;
} ENTRY_REDIRECT_REC;
static ENTRY_REDIRECT_REC *redir;
static int readtag, sigint_count = 0;
static time_t idle_time;
static void handle_key_redirect(int key)
{
ENTRY_REDIRECT_KEY_FUNC func;
void *data;
func = (ENTRY_REDIRECT_KEY_FUNC) redir->func;
data = redir->data;
g_free_and_null(redir);
if (func != NULL)
func(key, data, active_win->active_server, active_win->active);
gui_entry_remove_perm_prompt();
window_update_prompt(active_win);
}
static void handle_entry_redirect(const char *line)
{
ENTRY_REDIRECT_ENTRY_FUNC func;
void *data;
func = (ENTRY_REDIRECT_ENTRY_FUNC) redir->func;
data = redir->data;
g_free_and_null(redir);
if (func != NULL)
func(line, data, active_win->active_server, active_win->active);
gui_entry_remove_perm_prompt();
window_update_prompt(active_win);
}
static void window_prev_page(void)
{
GUI_WINDOW_REC *gui = WINDOW_GUI(active_win);
gui_window_scroll(active_win, -(gui->parent->last_line-gui->parent->first_line)/2);
}
static void window_next_page(void)
{
GUI_WINDOW_REC *gui = WINDOW_GUI(active_win);
gui_window_scroll(active_win, (gui->parent->last_line-gui->parent->first_line)/2);
}
static const char *get_key_name(int key)
{
static char str[MAX_INT_STRLEN];
switch (key) {
case KEY_HOME:
return "Home";
case KEY_END:
return "End";
case KEY_PPAGE:
return "Prior";
case KEY_NPAGE:
return "Next";
case KEY_UP:
return "Up";
case KEY_DOWN:
return "Down";
case KEY_LEFT:
return "Left";
case KEY_RIGHT:
return "Right";
default:
ltoa(str, key);
return str;
}
}
void handle_key(int key)
{
const char *text;
char *str;
int c;
/* Quit if we get 5 CTRL-C's in a row. */
if (key != 3)
sigint_count = 0;
else if (++sigint_count >= 5)
raise(SIGTERM);
idle_time = time(NULL);
if (redir != NULL && redir->key) {
handle_key_redirect(key);
return;
}
switch (key)
{
case 27:
c = getch();
if (c == toupper(c) && c != tolower(c))
str = g_strdup_printf("ALT-SHIFT-%c", c);
else {
if (c < 256)
str = g_strdup_printf("ALT-%c", toupper(c));
else
str = g_strdup_printf("ALT-%s", get_key_name(c));
}
key_pressed(str, NULL);
g_free(str);
break;
case KEY_HOME:
/* home */
gui_entry_set_pos(0);
gui_entry_move_pos(0);
break;
case KEY_END:
/* end */
gui_entry_set_pos(strlen(gui_entry_get_text()));
gui_entry_move_pos(0);
break;
case KEY_PPAGE:
/* page up */
window_prev_page();
break;
case KEY_NPAGE:
/* page down */
window_next_page();
break;
case KEY_UP:
/* up */
text = command_history_prev(active_win, gui_entry_get_text());
gui_entry_set_text(text);
break;
case KEY_DOWN:
/* down */
text = command_history_next(active_win, gui_entry_get_text());
gui_entry_set_text(text);
break;
case KEY_RIGHT:
/* right */
gui_entry_move_pos(1);
break;
case KEY_LEFT:
/* left */
gui_entry_move_pos(-1);
break;
case 21:
/* Ctrl-U, clear line */
gui_entry_set_text("");
break;
case 9:
key_pressed("Tab", NULL);
break;
case 8:
case 127:
case KEY_BACKSPACE:
gui_entry_erase(1);
break;
case 4:
case KEY_DC:
if (gui_entry_get_pos() < strlen(gui_entry_get_text())) {
gui_entry_move_pos(1);
gui_entry_erase(1);
}
break;
case 11:
/* C-K - erase the rest of the line */
c = gui_entry_get_pos();
gui_entry_set_pos(strlen(gui_entry_get_text()));
gui_entry_erase(strlen(gui_entry_get_text()) - c);
gui_entry_move_pos(0);
break;
case 0:
/* Ctrl-space - ignore */
break;
case 1:
/* C-A, home */
gui_entry_set_pos(0);
gui_entry_move_pos(0);
break;
case 5:
/* C-E, end */
gui_entry_set_pos(strlen(gui_entry_get_text()));
gui_entry_move_pos(0);
break;
case '\n':
case 13:
key_pressed("Return", NULL);
str = gui_entry_get_text();
if (*str == '\0') break;
translate_output(str);
if (redir == NULL)
signal_emit("send command", 3, str, active_win->active_server, active_win->active);
else
handle_entry_redirect(str);
command_history_add(active_win, gui_entry_get_text(), FALSE);
gui_entry_set_text("");
command_history_clear_pos(active_win);
break;
default:
if (key > 0 && key < 32) {
str = g_strdup_printf("CTRL-%c", key == 31 ? '-' : key+'A'-1);
key_pressed(str, NULL);
g_free(str);
break;
}
if (key < 256) {
char str[2];
str[0] = toupper(key); str[1] = '\0';
key_pressed(str, NULL);
gui_entry_insert_char((char) key);
}
break;
}
}
void readline(void)
{
int key;
for (;;) {
key = getch();
if (key == ERR) break;
handle_key(key);
}
}
time_t get_idle_time(void)
{
return idle_time;
}
static void sig_prev_page(void)
{
window_prev_page();
}
static void sig_next_page(void)
{
window_next_page();
}
static void sig_change_window(const char *data)
{
signal_emit("command window goto", 3, data, active_win->active_server, active_win->active);
}
static void sig_completion(void)
{
char *line;
int pos;
pos = gui_entry_get_pos();
line = completion_line(active_win, gui_entry_get_text(), &pos);
if (line != NULL) {
gui_entry_set_text(line);
gui_entry_set_pos(pos);
g_free(line);
}
}
static void sig_replace(void)
{
char *line;
int pos;
pos = gui_entry_get_pos();
line = auto_completion(gui_entry_get_text(), &pos);
if (line != NULL) {
gui_entry_set_text(line);
gui_entry_set_pos(pos);
g_free(line);
}
}
static void sig_prev_window(void)
{
signal_emit("command window prev", 3, "", active_win->active_server, active_win->active);
}
static void sig_next_window(void)
{
signal_emit("command window next", 3, "", active_win->active_server, active_win->active);
}
static void sig_up_window(void)
{
signal_emit("command window up", 3, "", active_win->active_server, active_win->active);
}
static void sig_down_window(void)
{
signal_emit("command window down", 3, "", active_win->active_server, active_win->active);
}
static void sig_window_goto_active(void)
{
signal_emit("command window goto", 3, "active", active_win->active_server, active_win->active);
}
static void sig_prev_window_item(void)
{
signal_emit("command window item prev", 3, "", active_win->active_server, active_win->active);
}
static void sig_next_window_item(void)
{
signal_emit("command window item next", 3, "", active_win->active_server, active_win->active);
}
static void sig_addchar(const char *data)
{
gui_entry_insert_char(*data);
}
static void sig_window_auto_changed(WINDOW_REC *window)
{
command_history_next(active_win, gui_entry_get_text());
gui_entry_set_text("");
}
static void sig_gui_entry_redirect(SIGNAL_FUNC func, const char *entry, gpointer key, void *data)
{
redir = g_new0(ENTRY_REDIRECT_REC, 1);
redir->func = func;
redir->key = key != NULL;
redir->data = data;
gui_entry_set_perm_prompt(entry);
}
void gui_readline_init(void)
{
static char changekeys[] = "1234567890QWERTYUIO";
char *key, data[MAX_INT_STRLEN];
int n;
redir = NULL;
idle_time = time(NULL);
readtag = g_input_add(0, G_INPUT_READ, (GInputFunction) readline, NULL);
key_bind("completion", NULL, "Nick completion", "Tab", (SIGNAL_FUNC) sig_completion);
key_bind("check replaces", NULL, "Check word replaces", " ", (SIGNAL_FUNC) sig_replace);
key_bind("check replaces", NULL, NULL, "Return", (SIGNAL_FUNC) sig_replace);
key_bind("window prev", NULL, "Previous window", "CTRL-P", (SIGNAL_FUNC) sig_prev_window);
key_bind("window prev", NULL, NULL, "ALT-Left", (SIGNAL_FUNC) sig_prev_window);
key_bind("window next", NULL, "Next window", "CTRL-N", (SIGNAL_FUNC) sig_next_window);
key_bind("window next", NULL, NULL, "ALT-Right", (SIGNAL_FUNC) sig_next_window);
key_bind("window up", NULL, "Upper window", "ALT-Up", (SIGNAL_FUNC) sig_up_window);
key_bind("window down", NULL, "Lower window", "ALT-Down", (SIGNAL_FUNC) sig_down_window);
key_bind("window active", NULL, "Go to next window with the highest activity", "ALT-A", (SIGNAL_FUNC) sig_window_goto_active);
key_bind("window item next", NULL, "Next channel", "CTRL-X", (SIGNAL_FUNC) sig_next_window_item);
key_bind("window item prev", NULL, "Next channel", NULL, (SIGNAL_FUNC) sig_prev_window_item);
key_bind("redraw", NULL, "Redraw window", "CTRL-L", (SIGNAL_FUNC) irssi_redraw);
key_bind("prev page", NULL, "Previous page", "ALT-P", (SIGNAL_FUNC) sig_prev_page);
key_bind("next page", NULL, "Next page", "ALT-N", (SIGNAL_FUNC) sig_next_page);
key_bind("special char", "\x02", "Insert special character", "CTRL-B", (SIGNAL_FUNC) sig_addchar);
key_bind("special char", "\x1f", NULL, "CTRL--", (SIGNAL_FUNC) sig_addchar);
key_bind("special char", "\x03", NULL, "CTRL-C", (SIGNAL_FUNC) sig_addchar);
key_bind("special char", "\x16", NULL, "CTRL-V", (SIGNAL_FUNC) sig_addchar);
key_bind("special char", "\x07", NULL, "CTRL-G", (SIGNAL_FUNC) sig_addchar);
key_bind("special char", "\x0f", NULL, "CTRL-O", (SIGNAL_FUNC) sig_addchar);
for (n = 0; changekeys[n] != '\0'; n++) {
key = g_strdup_printf("ALT-%c", changekeys[n]);
ltoa(data, n+1);
key_bind("change window", data, "Change window", key, (SIGNAL_FUNC) sig_change_window);
g_free(key);
}
signal_add("window changed automatic", (SIGNAL_FUNC) sig_window_auto_changed);
signal_add("gui entry redirect", (SIGNAL_FUNC) sig_gui_entry_redirect);
}
void gui_readline_deinit(void)
{
g_source_remove(readtag);
key_unbind("completion", (SIGNAL_FUNC) sig_completion);
key_unbind("check replaces", (SIGNAL_FUNC) sig_replace);
key_unbind("window prev", (SIGNAL_FUNC) sig_prev_window);
key_unbind("window next", (SIGNAL_FUNC) sig_next_window);
key_unbind("window active", (SIGNAL_FUNC) sig_window_goto_active);
key_unbind("window item next", (SIGNAL_FUNC) sig_next_window_item);
key_unbind("window item prev", (SIGNAL_FUNC) sig_prev_window_item);
key_unbind("redraw", (SIGNAL_FUNC) irssi_redraw);
key_unbind("prev page", (SIGNAL_FUNC) sig_prev_page);
key_unbind("next page", (SIGNAL_FUNC) sig_next_page);
key_unbind("special char", (SIGNAL_FUNC) sig_addchar);
key_unbind("change window", (SIGNAL_FUNC) sig_change_window);
signal_remove("window changed automatic", (SIGNAL_FUNC) sig_window_auto_changed);
signal_remove("gui entry redirect", (SIGNAL_FUNC) sig_gui_entry_redirect);
}