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irssi/src/fe-text/gui-readline.c
Timo Sirainen 09f3538073 KEY_END isn't defined in all curses implementations 
git-svn-id: http://svn.irssi.org/repos/irssi/trunk@876 dbcabf3a-b0e7-0310-adc4-f8d773084564
2000-11-26 03:21:46 +00:00

657 lines
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/*
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 "servers.h"
#include "misc.h"
#include "completion.h"
#include "command-history.h"
#include "keyboard.h"
#include "translation.h"
#include "fe-windows.h"
#include "screen.h"
#include "gui-entry.h"
#include "gui-windows.h"
#include <signal.h>
#undef CTRL
#define CTRL(x) ((x) & 0x1f) /* Ctrl+x */
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;
char *cutbuffer;
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->lines/2);
}
static void window_next_page(void)
{
GUI_WINDOW_REC *gui = WINDOW_GUI(active_win);
gui_window_scroll(active_win, gui->parent->lines/2);
}
static const char *get_key_name(int key)
{
switch (key) {
case 8:
case 127:
case KEY_BACKSPACE:
return "Backspace";
case 9:
return "Tab";
case KEY_HOME:
return "Home";
#ifdef KEY_END
case KEY_END:
#endif
#ifdef KEY_LL
case KEY_LL:
#endif
#if defined (KEY_END) || defined (KEY_LL)
return "End";
#endif
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";
case KEY_DC:
return "Delete";
case KEY_IC:
return "Insert";
case '\n':
case 13:
return "Return";
default:
return NULL;
}
}
void handle_key(int key)
{
const char *keyname;
char *str;
/* Quit if we get 5 CTRL-C's in a row. */
if (key != CTRL('c'))
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:
key = getch();
if (key == 'O') {
key = getch();
switch (key) {
case 'a':
str = g_strdup("CTRL-Up");
break;
case 'b':
str = g_strdup("CTRL-Down");
break;
case 'c':
str = g_strdup("CTRL-Right");
break;
case 'd':
str = g_strdup("CTRL-Left");
break;
default:
return;
}
} else if (key == toupper(key) && key != tolower(key))
str = g_strdup_printf("ALT-SHIFT-%c", key);
else {
keyname = get_key_name(key);
if (keyname != NULL)
str = g_strdup_printf("ALT-%s", keyname);
else if (key >= 32 && key < 256 && key != 128)
str = g_strdup_printf("ALT-%c", toupper(key));
else {
str = g_strdup_printf("ALT-%d", key);
}
}
key_pressed(str, NULL);
g_free(str);
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:
keyname = get_key_name(key);
if (keyname != NULL) {
key_pressed(keyname, NULL);
break;
}
if (key >= 0 && key < 32) {
str = g_strdup_printf("CTRL-%c",
key == 0 ? ' ' :
(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;
}
}
static void key_backward_history(void)
{
const char *text;
text = command_history_prev(active_win, gui_entry_get_text());
gui_entry_set_text(text);
}
static void key_forward_history(void)
{
const char *text;
text = command_history_next(active_win, gui_entry_get_text());
gui_entry_set_text(text);
}
static void key_beginning_of_line(void)
{
gui_entry_set_pos(0);
}
static void key_end_of_line(void)
{
gui_entry_set_pos(strlen(gui_entry_get_text()));
}
static void key_backward_character(void)
{
gui_entry_move_pos(-1);
}
static void key_forward_character(void)
{
gui_entry_move_pos(1);
}
static void key_backward_word(void)
{
gui_entry_move_words(-1);
}
static void key_forward_word(void)
{
gui_entry_move_words(1);
}
static void key_erase_line(void)
{
g_free_not_null(cutbuffer);
cutbuffer = g_strdup(gui_entry_get_text());
gui_entry_set_text("");
}
static void key_erase_to_beg_of_line(void)
{
int pos;
pos = gui_entry_get_pos();
g_free_not_null(cutbuffer);
cutbuffer = g_strndup(gui_entry_get_text(), pos);
gui_entry_erase(pos);
}
static void key_erase_to_end_of_line(void)
{
int pos;
pos = gui_entry_get_pos();
g_free_not_null(cutbuffer);
cutbuffer = g_strdup(gui_entry_get_text()+pos);
gui_entry_set_pos(strlen(gui_entry_get_text()));
gui_entry_erase(strlen(gui_entry_get_text()) - pos);
}
static void key_yank_from_cutbuffer(void)
{
if (cutbuffer != NULL)
gui_entry_insert_text(cutbuffer);
}
static void key_transpose_characters(void)
{
char *line, c;
int pos;
pos = gui_entry_get_pos();
line = gui_entry_get_text();
if (pos == 0 || strlen(line) < 2)
return;
if (line[pos] != '\0')
gui_entry_move_pos(1);
c = line[gui_entry_get_pos()-1];
gui_entry_erase(1);
gui_entry_move_pos(-1);
gui_entry_insert_char(c);
gui_entry_set_pos(pos);
}
static void key_delete_character(void)
{
if (gui_entry_get_pos() < strlen(gui_entry_get_text())) {
gui_entry_move_pos(1);
gui_entry_erase(1);
}
}
static void key_backspace(void)
{
gui_entry_erase(1);
}
static void key_delete_previous_word(void)
{
/* FIXME */
}
static void key_delete_next_word(void)
{
/* FIXME */
}
static void key_delete_to_previous_space(void)
{
gui_entry_erase_word();
}
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 key_scroll_backward(void)
{
window_prev_page();
}
static void key_scroll_forward(void)
{
window_next_page();
}
static void key_scroll_start(void)
{
signal_emit("command scrollback home", 3, NULL, active_win->active_server, active_win->active);
}
static void key_scroll_end(void)
{
signal_emit("command scrollback end", 3, NULL, active_win->active_server, active_win->active);
}
static void key_change_window(const char *data)
{
signal_emit("command window goto", 3, data, active_win->active_server, active_win->active);
}
static void key_word_completion(void)
{
char *line;
int pos;
pos = gui_entry_get_pos();
line = word_complete(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 key_check_replaces(void)
{
char *line;
int pos;
pos = gui_entry_get_pos();
line = auto_word_complete(gui_entry_get_text(), &pos);
if (line != NULL) {
gui_entry_set_text(line);
gui_entry_set_pos(pos);
g_free(line);
}
}
static void key_previous_window(void)
{
signal_emit("command window prev", 3, "", active_win->active_server, active_win->active);
}
static void key_next_window(void)
{
signal_emit("command window next", 3, "", active_win->active_server, active_win->active);
}
static void key_upper_window(void)
{
signal_emit("command window up", 3, "", active_win->active_server, active_win->active);
}
static void key_lower_window(void)
{
signal_emit("command window down", 3, "", active_win->active_server, active_win->active);
}
static void key_active_window(void)
{
signal_emit("command window goto", 3, "active", active_win->active_server, active_win->active);
}
static void key_previous_window_item(void)
{
SERVER_REC *server;
GSList *pos;
if (active_win->items != NULL)
signal_emit("command window item prev", 3, "", active_win->active_server, active_win->active);
else if (servers != NULL) {
/* change server */
if (active_win->active_server == NULL)
server = servers->data;
else {
pos = g_slist_find(servers, active_win->active_server);
server = pos->next != NULL ? pos->next->data : servers->data;
}
signal_emit("command window server", 3, server->tag, active_win->active_server, active_win->active);
}
}
static void key_next_window_item(void)
{
SERVER_REC *server;
int index;
if (active_win->items != NULL)
signal_emit("command window item next", 3, "", active_win->active_server, active_win->active);
else if (servers != NULL) {
/* change server */
if (active_win->active_server == NULL)
server = servers->data;
else {
index = g_slist_index(servers, active_win->active_server);
server = index > 0 ? g_slist_nth(servers, index-1)->data :
g_slist_last(servers)->data;
}
signal_emit("command window server", 3, server->tag, active_win->active_server, active_win->active);
}
}
static void key_addchar(const char *data)
{
gui_entry_insert_char(*data);
}
static void sig_window_auto_changed(void)
{
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;
cutbuffer = NULL;
redir = NULL;
idle_time = time(NULL);
readtag = g_input_add_full(0, G_PRIORITY_HIGH, G_INPUT_READ, (GInputFunction) readline, NULL);
key_bind("backward_character", "", "Left", NULL, (SIGNAL_FUNC) key_backward_character);
key_bind("forward_character", "", "Right", NULL, (SIGNAL_FUNC) key_forward_character);
key_bind("backward_word", "", "Ctrl-Left", NULL, (SIGNAL_FUNC) key_backward_word);
key_bind("forward_word", "", "Ctrl-Right", NULL, (SIGNAL_FUNC) key_forward_word);
key_bind("beginning_of_line", "", "Home", NULL, (SIGNAL_FUNC) key_beginning_of_line);
key_bind("beginning_of_line", NULL, "Ctrl-A", NULL, (SIGNAL_FUNC) key_beginning_of_line);
key_bind("end_of_line", "", "End", NULL, (SIGNAL_FUNC) key_end_of_line);
key_bind("end_of_line", NULL, "Ctrl-E", NULL, (SIGNAL_FUNC) key_end_of_line);
key_bind("backward_history", "", "Up", NULL, (SIGNAL_FUNC) key_backward_history);
key_bind("forward_history", "", "Down", NULL, (SIGNAL_FUNC) key_forward_history);
key_bind("backspace", "", "Backspace", NULL, (SIGNAL_FUNC) key_backspace);
key_bind("delete_character", "", "Delete", NULL, (SIGNAL_FUNC) key_delete_character);
key_bind("delete_character", NULL, "Ctrl-D", NULL, (SIGNAL_FUNC) key_delete_character);
key_bind("delete_next_word", "", NULL, NULL, (SIGNAL_FUNC) key_delete_next_word);
key_bind("delete_previous_word", "", NULL, NULL, (SIGNAL_FUNC) key_delete_previous_word);
key_bind("delete_to_previous_space", "", "Ctrl-W", NULL, (SIGNAL_FUNC) key_delete_to_previous_space);
key_bind("erase_line", "", "Ctrl-U", NULL, (SIGNAL_FUNC) key_erase_line);
key_bind("erase_to_beg_of_line", "", NULL, NULL, (SIGNAL_FUNC) key_erase_to_beg_of_line);
key_bind("erase_to_end_of_line", "", "Ctrl-K", NULL, (SIGNAL_FUNC) key_erase_to_end_of_line);
key_bind("yank_from_cutbuffer", "", "Ctrl-Y", NULL, (SIGNAL_FUNC) key_yank_from_cutbuffer);
key_bind("transpose_characters", "", "Ctrl-T", NULL, (SIGNAL_FUNC) key_transpose_characters);
key_bind("word_completion", "", "Tab", NULL, (SIGNAL_FUNC) key_word_completion);
key_bind("check_replaces", "Check word replaces", " ", NULL, (SIGNAL_FUNC) key_check_replaces);
key_bind("check_replaces", NULL, "Return", NULL, (SIGNAL_FUNC) key_check_replaces);
key_bind("previous_window", "Previous window", "CTRL-P", NULL, (SIGNAL_FUNC) key_previous_window);
key_bind("previous_window", NULL, "ALT-Left", NULL, (SIGNAL_FUNC) key_previous_window);
key_bind("next_window", "Next window", "CTRL-N", NULL, (SIGNAL_FUNC) key_next_window);
key_bind("next_window", NULL, "ALT-Right", NULL, (SIGNAL_FUNC) key_next_window);
key_bind("upper_window", "Upper window", "ALT-Up", NULL, (SIGNAL_FUNC) key_upper_window);
key_bind("lower_window", "Lower window", "ALT-Down", NULL, (SIGNAL_FUNC) key_lower_window);
key_bind("active_window", "Go to next window with the highest activity", "ALT-A", NULL, (SIGNAL_FUNC) key_active_window);
key_bind("next_window_item", "Next channel/query", "CTRL-X", NULL, (SIGNAL_FUNC) key_next_window_item);
key_bind("previous_window_item", "Previous channel/query", NULL, NULL, (SIGNAL_FUNC) key_previous_window_item);
key_bind("refresh_screen", "Redraw screen", "CTRL-L", NULL, (SIGNAL_FUNC) irssi_redraw);
key_bind("scroll_backward", "Previous page", "Prior", NULL, (SIGNAL_FUNC) key_scroll_backward);
key_bind("scroll_backward", NULL, "ALT-P", NULL, (SIGNAL_FUNC) key_scroll_backward);
key_bind("scroll_forward", "Next page", "Next", NULL, (SIGNAL_FUNC) key_scroll_forward);
key_bind("scroll_forward", NULL, "ALT-N", NULL, (SIGNAL_FUNC) key_scroll_forward);
key_bind("scroll_start", "Beginning of the window", "", NULL, (SIGNAL_FUNC) key_scroll_start);
key_bind("scroll_end", "End of the window", "", NULL, (SIGNAL_FUNC) key_scroll_end);
key_bind("special_char", "Insert special character", "CTRL-B", "\002", (SIGNAL_FUNC) key_addchar);
key_bind("special_char", NULL, "CTRL--", "\037", (SIGNAL_FUNC) key_addchar);
key_bind("special_char", NULL, "CTRL-C", "\003", (SIGNAL_FUNC) key_addchar);
key_bind("special_char", NULL, "CTRL-V", "\026", (SIGNAL_FUNC) key_addchar);
key_bind("special_char", NULL, "CTRL-G", "\007", (SIGNAL_FUNC) key_addchar);
key_bind("special_char", NULL, "CTRL-O", "\017", (SIGNAL_FUNC) key_addchar);
for (n = 0; changekeys[n] != '\0'; n++) {
key = g_strdup_printf("ALT-%c", changekeys[n]);
ltoa(data, n+1);
key_bind("change_window", "Change window", key, data, (SIGNAL_FUNC) key_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_free_not_null(cutbuffer);
g_source_remove(readtag);
key_unbind("backward_character", (SIGNAL_FUNC) key_backward_character);
key_unbind("forward_character", (SIGNAL_FUNC) key_forward_character);
key_unbind("backward_word", (SIGNAL_FUNC) key_backward_word);
key_unbind("forward_word", (SIGNAL_FUNC) key_forward_word);
key_unbind("beginning_of_line", (SIGNAL_FUNC) key_beginning_of_line);
key_unbind("end_of_line", (SIGNAL_FUNC) key_end_of_line);
key_unbind("backward_history", (SIGNAL_FUNC) key_backward_history);
key_unbind("forward_history", (SIGNAL_FUNC) key_forward_history);
key_unbind("backspace", (SIGNAL_FUNC) key_backspace);
key_unbind("delete_character", (SIGNAL_FUNC) key_delete_character);
key_unbind("delete_next_word", (SIGNAL_FUNC) key_delete_next_word);
key_unbind("delete_previous_word", (SIGNAL_FUNC) key_delete_previous_word);
key_unbind("delete_to_previous_space", (SIGNAL_FUNC) key_delete_to_previous_space);
key_unbind("erase_line", (SIGNAL_FUNC) key_erase_line);
key_unbind("erase_to_beg_of_line", (SIGNAL_FUNC) key_erase_to_beg_of_line);
key_unbind("erase_to_end_of_line", (SIGNAL_FUNC) key_erase_to_end_of_line);
key_unbind("yank_from_cutbuffer", (SIGNAL_FUNC) key_yank_from_cutbuffer);
key_unbind("transpose_characters", (SIGNAL_FUNC) key_transpose_characters);
key_unbind("word_completion", (SIGNAL_FUNC) key_word_completion);
key_unbind("check_replaces", (SIGNAL_FUNC) key_check_replaces);
key_unbind("previous_window", (SIGNAL_FUNC) key_previous_window);
key_unbind("next_window", (SIGNAL_FUNC) key_next_window);
key_unbind("upper_window", (SIGNAL_FUNC) key_upper_window);
key_unbind("lower_window", (SIGNAL_FUNC) key_lower_window);
key_unbind("active_window", (SIGNAL_FUNC) key_active_window);
key_unbind("next_window_item", (SIGNAL_FUNC) key_next_window_item);
key_unbind("previous_window_item", (SIGNAL_FUNC) key_previous_window_item);
key_unbind("refresh_screen", (SIGNAL_FUNC) irssi_redraw);
key_unbind("scroll_backward", (SIGNAL_FUNC) key_scroll_backward);
key_unbind("scroll_forward", (SIGNAL_FUNC) key_scroll_forward);
key_unbind("scroll_start", (SIGNAL_FUNC) key_scroll_start);
key_unbind("scroll_end", (SIGNAL_FUNC) key_scroll_end);
key_unbind("special_char", (SIGNAL_FUNC) key_addchar);
key_unbind("change_window", (SIGNAL_FUNC) key_change_window);
signal_remove("window changed automatic", (SIGNAL_FUNC) sig_window_auto_changed);
signal_remove("gui entry redirect", (SIGNAL_FUNC) sig_gui_entry_redirect);
}
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