80 lines
2.1 KiB
C
80 lines
2.1 KiB
C
|
/* Copyright (C) 2020 C. McEnroe <june@causal.agency>
|
||
|
|
*
|
||
|
|
* 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 3 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, see <https://www.gnu.org/licenses/>.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <stdbool.h>
|
||
|
|
#include <stdio.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <termios.h>
|
||
|
|
#include <unistd.h>
|
||
|
|
|
||
|
|
#include "chat.h"
|
||
|
|
|
||
|
|
static bool xterm;
|
||
|
|
|
||
|
|
void termInit(void) {
|
||
|
|
const char *term = getenv("TERM");
|
||
|
|
xterm = (term && !strncmp(term, "xterm", 5));
|
||
|
|
}
|
||
|
|
|
||
|
|
void termNoFlow(void) {
|
||
|
|
struct termios attr;
|
||
|
|
int error = tcgetattr(STDIN_FILENO, &attr);
|
||
|
|
if (error) return;
|
||
|
|
attr.c_iflag &= ~IXON;
|
||
|
|
attr.c_cc[VDISCARD] = _POSIX_VDISABLE;
|
||
|
|
tcsetattr(STDIN_FILENO, TCSANOW, &attr);
|
||
|
|
}
|
||
|
|
|
||
|
|
void termTitle(const char *title) {
|
||
|
|
if (!xterm) return;
|
||
|
|
printf("\33]0;%s\33\\", title);
|
||
|
|
fflush(stdout);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void privateMode(const char *mode, bool set) {
|
||
|
|
printf("\33[?%s%c", mode, (set ? 'h' : 'l'));
|
||
|
|
fflush(stdout);
|
||
|
|
}
|
||
|
|
|
||
|
|
void termMode(enum TermMode mode, bool set) {
|
||
|
|
switch (mode) {
|
||
|
|
break; case TermFocus: privateMode("1004", set);
|
||
|
|
break; case TermPaste: privateMode("2004", set);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
enum { Esc = '\33' };
|
||
|
|
|
||
|
|
enum TermEvent termEvent(char ch) {
|
||
|
|
static int st;
|
||
|
|
#define T(st, ch) ((st) << 8 | (ch))
|
||
|
|
switch (T(st, ch)) {
|
||
|
|
break; case T(0, Esc): st = 1;
|
||
|
|
break; case T(1, '['): st = 2;
|
||
|
|
break; case T(2, 'I'): st = 0; return TermFocusIn;
|
||
|
|
break; case T(2, 'O'): st = 0; return TermFocusOut;
|
||
|
|
break; case T(2, '2'): st = 3;
|
||
|
|
break; case T(3, '0'): st = 4;
|
||
|
|
break; case T(4, '0'): st = 5;
|
||
|
|
break; case T(5, '~'): st = 0; return TermPasteStart;
|
||
|
|
break; case T(4, '1'): st = 6;
|
||
|
|
break; case T(6, '~'): st = 0; return TermPasteEnd;
|
||
|
|
break; default: st = 0;
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
#undef T
|
||
|
|
}
|