156 lines
2.6 KiB
C
156 lines
2.6 KiB
C
|
#include <newt.h>
|
||
|
|
#include <signal.h>
|
||
|
|
#include <stdbool.h>
|
||
|
|
|
||
|
|
#include "../cache.h"
|
||
|
|
#include "../debug.h"
|
||
|
|
#include "browser.h"
|
||
|
|
#include "helpline.h"
|
||
|
|
#include "ui.h"
|
||
|
|
#include "util.h"
|
||
|
|
#include "libslang.h"
|
||
|
|
#include "keysyms.h"
|
||
|
|
|
||
|
|
pthread_mutex_t ui__lock = PTHREAD_MUTEX_INITIALIZER;
|
||
|
|
|
||
|
|
static volatile int ui__need_resize;
|
||
|
|
|
||
|
|
void ui__refresh_dimensions(bool force)
|
||
|
|
{
|
||
|
|
if (force || ui__need_resize) {
|
||
|
|
ui__need_resize = 0;
|
||
|
|
pthread_mutex_lock(&ui__lock);
|
||
|
|
SLtt_get_screen_size();
|
||
|
|
SLsmg_reinit_smg();
|
||
|
|
pthread_mutex_unlock(&ui__lock);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static void ui__sigwinch(int sig __used)
|
||
|
|
{
|
||
|
|
ui__need_resize = 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void ui__setup_sigwinch(void)
|
||
|
|
{
|
||
|
|
static bool done;
|
||
|
|
|
||
|
|
if (done)
|
||
|
|
return;
|
||
|
|
|
||
|
|
done = true;
|
||
|
|
pthread__unblock_sigwinch();
|
||
|
|
signal(SIGWINCH, ui__sigwinch);
|
||
|
|
}
|
||
|
|
|
||
|
|
int ui__getch(int delay_secs)
|
||
|
|
{
|
||
|
|
struct timeval timeout, *ptimeout = delay_secs ? &timeout : NULL;
|
||
|
|
fd_set read_set;
|
||
|
|
int err, key;
|
||
|
|
|
||
|
|
ui__setup_sigwinch();
|
||
|
|
|
||
|
|
FD_ZERO(&read_set);
|
||
|
|
FD_SET(0, &read_set);
|
||
|
|
|
||
|
|
if (delay_secs) {
|
||
|
|
timeout.tv_sec = delay_secs;
|
||
|
|
timeout.tv_usec = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
err = select(1, &read_set, NULL, NULL, ptimeout);
|
||
|
|
|
||
|
|
if (err == 0)
|
||
|
|
return K_TIMER;
|
||
|
|
|
||
|
|
if (err == -1) {
|
||
|
|
if (errno == EINTR)
|
||
|
|
return K_RESIZE;
|
||
|
|
return K_ERROR;
|
||
|
|
}
|
||
|
|
|
||
|
|
key = SLang_getkey();
|
||
|
|
if (key != K_ESC)
|
||
|
|
return key;
|
||
|
|
|
||
|
|
FD_ZERO(&read_set);
|
||
|
|
FD_SET(0, &read_set);
|
||
|
|
timeout.tv_sec = 0;
|
||
|
|
timeout.tv_usec = 20;
|
||
|
|
err = select(1, &read_set, NULL, NULL, &timeout);
|
||
|
|
if (err == 0)
|
||
|
|
return K_ESC;
|
||
|
|
|
||
|
|
SLang_ungetkey(key);
|
||
|
|
return SLkp_getkey();
|
||
|
|
}
|
||
|
|
|
||
|
|
static void newt_suspend(void *d __used)
|
||
|
|
{
|
||
|
|
newtSuspend();
|
||
|
|
raise(SIGTSTP);
|
||
|
|
newtResume();
|
||
|
|
}
|
||
|
|
|
||
|
|
static int ui__init(void)
|
||
|
|
{
|
||
|
|
int err = SLkp_init();
|
||
|
|
|
||
|
|
if (err < 0)
|
||
|
|
goto out;
|
||
|
|
|
||
|
|
SLkp_define_keysym((char *)"^(kB)", SL_KEY_UNTAB);
|
||
|
|
out:
|
||
|
|
return err;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void ui__exit(void)
|
||
|
|
{
|
||
|
|
SLtt_set_cursor_visibility(1);
|
||
|
|
SLsmg_refresh();
|
||
|
|
SLsmg_reset_smg();
|
||
|
|
SLang_reset_tty();
|
||
|
|
}
|
||
|
|
|
||
|
|
static void ui__signal(int sig)
|
||
|
|
{
|
||
|
|
ui__exit();
|
||
|
|
psignal(sig, "perf");
|
||
|
|
exit(0);
|
||
|
|
}
|
||
|
|
|
||
|
|
void setup_browser(bool fallback_to_pager)
|
||
|
|
{
|
||
|
|
if (!isatty(1) || !use_browser || dump_trace) {
|
||
|
|
use_browser = 0;
|
||
|
|
if (fallback_to_pager)
|
||
|
|
setup_pager();
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
use_browser = 1;
|
||
|
|
newtInit();
|
||
|
|
ui__init();
|
||
|
|
newtSetSuspendCallback(newt_suspend, NULL);
|
||
|
|
ui_helpline__init();
|
||
|
|
ui_browser__init();
|
||
|
|
|
||
|
|
signal(SIGSEGV, ui__signal);
|
||
|
|
signal(SIGFPE, ui__signal);
|
||
|
|
signal(SIGINT, ui__signal);
|
||
|
|
signal(SIGQUIT, ui__signal);
|
||
|
|
signal(SIGTERM, ui__signal);
|
||
|
|
}
|
||
|
|
|
||
|
|
void exit_browser(bool wait_for_ok)
|
||
|
|
{
|
||
|
|
if (use_browser > 0) {
|
||
|
|
if (wait_for_ok)
|
||
|
|
ui__question_window("Fatal Error",
|
||
|
|
ui_helpline__last_msg,
|
||
|
|
"Press any key...", 0);
|
||
|
|
ui__exit();
|
||
|
|
}
|
||
|
|
}
|