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Status: read from fifo

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This commit is contained in:
Bastien Dejean 2012-09-07 23:15:08 +02:00
parent 83cab76fa7
commit 169ea51b5e
1 changed files with 72 additions and 39 deletions
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111
bsps.c
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@ -1,5 +1,9 @@
#define _BSD_SOURCE
#include <fcntl.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
@ -10,18 +14,25 @@
#include <xcb/xcb_ewmh.h>
#include "bsps.h"
#define NO_VALUE " "
#define NAME_SEP "\0"
#define MAX(A, B) ((A) > (B) ? (A) : (B))
#define FIFO_PATH "BSPWM_FIFO"
#define NO_VALUE " "
#define NAME_SEP "\0"
typedef enum {
false,
true
} bool;
char *deskname = NO_VALUE;
char *wintitle = NO_VALUE;
char *desktop_name = NO_VALUE;
char *window_title = NO_VALUE;
char external_info[BUFSIZ] = NO_VALUE;
xcb_window_t curwin;
char *fifo_path;
int fifo_fd, dpy_fd, sel_fd;
xcb_connection_t *dpy;
xcb_ewmh_connection_t ewmh;
xcb_screen_t *screen;
@ -35,6 +46,13 @@ void setup(void)
xcb_intern_atom_cookie_t *ewmh_cookies;
ewmh_cookies = xcb_ewmh_init_atoms(dpy, &ewmh);
xcb_ewmh_init_atoms_replies(&ewmh, ewmh_cookies, NULL);
fifo_path = getenv(FIFO_PATH);
mkfifo(fifo_path, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH);
/* fifo_fd = open(fifo_path, O_RDONLY); */
fifo_fd = open(fifo_path, O_RDWR | O_NONBLOCK);
/* fprintf(stderr, "fifo_fd %i\n", fifo_fd); */
dpy_fd = xcb_get_file_descriptor(dpy);
sel_fd = MAX(fifo_fd, dpy_fd) + 1;
curwin = 0;
running = true;
}
@ -54,7 +72,7 @@ void handle_signal(int sig)
running = false;
}
void update_wintitle(void)
void update_window_title(void)
{
xcb_window_t win;
xcb_ewmh_get_utf8_strings_reply_t name;
@ -65,7 +83,7 @@ void update_wintitle(void)
if (xcb_ewmh_get_active_window_reply(&ewmh, xcb_ewmh_get_active_window(&ewmh, default_screen), &win, NULL) == 1)
{
if (xcb_ewmh_get_wm_name_reply(&ewmh, xcb_ewmh_get_wm_name(&ewmh, win), &name, NULL) == 1) {
wintitle = strdup(name.strings);
window_title = strdup(name.strings);
if (win != curwin) {
xcb_change_window_attributes(dpy, curwin, XCB_CW_EVENT_MASK, values_reset);
curwin = win;
@ -75,12 +93,12 @@ void update_wintitle(void)
running = false;
} else {
wintitle = strdup(NO_VALUE);
window_title = strdup(NO_VALUE);
}
}
}
void update_deskname(void)
void update_desktop_name(void)
{
uint32_t cd;
xcb_ewmh_get_utf8_strings_reply_t names;
@ -91,60 +109,75 @@ void update_deskname(void)
pos += strlen(names.strings + pos) + 1;
cnt++;
}
deskname = strdup(names.strings + pos);
for (cnt = 0; cnt < strlen(deskname); cnt++)
deskname[cnt] = toupper(deskname[cnt]);
desktop_name = strdup(names.strings + pos);
for (cnt = 0; cnt < strlen(desktop_name); cnt++)
desktop_name[cnt] = toupper(desktop_name[cnt]);
} else {
deskname = strdup(NO_VALUE);
desktop_name = strdup(NO_VALUE);
}
}
void output_infos(void)
{
printf("\\l %s\\c%s\\r12:34 \n", deskname, wintitle);
printf("\\l %s\\c%s\\r%s \n", desktop_name, window_title, external_info);
fflush(stdout);
}
/* int main(int argc, char *argv[]) */
void handle_event(xcb_generic_event_t *evt)
{
xcb_property_notify_event_t *pne;
switch (XCB_EVENT_RESPONSE_TYPE(evt)) {
case XCB_PROPERTY_NOTIFY:
pne = (xcb_property_notify_event_t *) evt;
if (pne->atom == ewmh._NET_CURRENT_DESKTOP) {
update_desktop_name();
output_infos();
} else if (pne->atom == ewmh._NET_ACTIVE_WINDOW) {
update_window_title();
output_infos();
} else if (pne->window != screen->root && (pne->atom == ewmh._NET_WM_NAME || pne->atom == XCB_ATOM_WM_NAME)) {
update_window_title();
output_infos();
} else {
}
default:
break;
}
}
int main(void)
{
fd_set descriptors;
xcb_generic_event_t *evt;
xcb_property_notify_event_t *pne;
signal(SIGTERM, handle_signal);
signal(SIGINT, handle_signal);
signal(SIGHUP, handle_signal);
setup();
screen = ewmh.screens[default_screen];
register_events();
update_deskname();
update_wintitle();
update_desktop_name();
update_window_title();
output_infos();
xcb_flush(dpy);
while (running) {
evt = xcb_wait_for_event(dpy);
switch (XCB_EVENT_RESPONSE_TYPE(evt)) {
case XCB_PROPERTY_NOTIFY:
pne = (xcb_property_notify_event_t *) evt;
if (pne->atom == ewmh._NET_CURRENT_DESKTOP) {
update_deskname();
output_infos();
} else if (pne->atom == ewmh._NET_ACTIVE_WINDOW) {
update_wintitle();
output_infos();
} else if (pne->window != screen->root && (pne->atom == ewmh._NET_WM_NAME || pne->atom == XCB_ATOM_WM_NAME)) {
update_wintitle();
output_infos();
} else {
/* printf("property %i\n", pne->atom); */
FD_ZERO(&descriptors);
FD_SET(fifo_fd, &descriptors);
FD_SET(dpy_fd, &descriptors);
if (select(sel_fd, &descriptors, NULL, NULL, NULL)) {
if (FD_ISSET(dpy_fd, &descriptors)) {
while ((evt = xcb_poll_for_event(dpy)) != NULL) {
handle_event(evt);
free(evt);
}
case XCB_CLIENT_MESSAGE:
/* puts("client message"); */
break;
default:
/* printf("event %i\n", XCB_EVENT_RESPONSE_TYPE(evt)); */
break;
}
if (FD_ISSET(fifo_fd, &descriptors)) {
read(fifo_fd, external_info, sizeof(external_info));
output_infos();
}
}
free(evt);
}
xcb_disconnect(dpy);