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Set active terminal into non-canonical mode

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We want to be able to gain access to key presses immediately,
so we can pass them on to the splash plugin to display to the
user in some form.  The "pass to the splash plugin" part isn't
implemented yet.
This commit is contained in:
Ray Strode 2008-05-18 19:09:16 -04:00
parent 64198914da
commit 413270724b
1 changed files with 49 additions and 3 deletions
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52
src/ply-window.c
View file

@ -32,6 +32,7 @@
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <termios.h>
#include <unistd.h>
#include <linux/kd.h>
@ -47,6 +48,7 @@ struct _ply_window
char *tty_name;
int tty_fd;
ply_fd_watch_t *tty_fd_watch;
ply_window_mode_t mode;
};
@ -66,6 +68,28 @@ ply_window_new (const char *tty_name)
return window;
}
static void
on_key_event (ply_window_t *window)
{
char buffer[64] = "";
ply_read (window->tty_fd, buffer, sizeof (buffer) - 1);
}
bool
ply_window_set_unbuffered_input (ply_window_t *window)
{
struct termios term_attributes;
tcgetattr (window->tty_fd, &term_attributes);
term_attributes.c_lflag &= ~ICANON;
if (tcsetattr (window->tty_fd, TCSAFLUSH, &term_attributes) != 0)
return false;
return true;
}
bool
ply_window_open (ply_window_t *window)
{
@ -78,9 +102,18 @@ ply_window_open (ply_window_t *window)
if (window->tty_fd < 0)
return false;
if (!ply_window_set_unbuffered_input (window))
return false;
if (!ply_window_set_mode (window, PLY_WINDOW_MODE_TEXT))
return false;
if (window->loop != NULL)
window->tty_fd_watch = ply_event_loop_watch_fd (window->loop, window->tty_fd,
PLY_EVENT_LOOP_FD_STATUS_HAS_DATA,
(ply_event_handler_t) on_key_event,
NULL, window);
return true;
}
@ -89,6 +122,12 @@ ply_window_close (ply_window_t *window)
{
ply_window_set_mode (window, PLY_WINDOW_MODE_TEXT);
if (window->tty_fd_watch != NULL)
{
ply_event_loop_stop_watching_fd (window->loop, window->tty_fd_watch);
window->tty_fd_watch = NULL;
}
close (window->tty_fd);
window->tty_fd = -1;
}
@ -134,11 +173,12 @@ ply_window_detach_from_event_loop (ply_window_t *window)
{
assert (window != NULL);
window->loop = NULL;
window->tty_fd_watch = NULL;
}
void
ply_window_attach_to_event_loop (ply_window_t *window,
ply_event_loop_t *loop)
ply_window_attach_to_event_loop (ply_window_t *window,
ply_event_loop_t *loop)
{
assert (window != NULL);
assert (loop != NULL);
@ -146,6 +186,12 @@ ply_window_attach_to_event_loop (ply_window_t *window,
window->loop = loop;
if (window->tty_fd >= 0)
window->tty_fd_watch = ply_event_loop_watch_fd (window->loop, window->tty_fd,
PLY_EVENT_LOOP_FD_STATUS_HAS_DATA,
(ply_event_handler_t) on_key_event,
NULL, window);
ply_event_loop_watch_for_exit (loop, (ply_event_loop_exit_handler_t)
ply_window_detach_from_event_loop,
window);
@ -202,7 +248,7 @@ main (int argc,
}
ply_event_loop_watch_for_timeout (loop,
1.0,
15.0,
(ply_event_loop_timeout_handler_t)
on_timeout,
window);