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wew.c
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#include <stdio.h>
#include <stdlib.h>
#include <err.h>
#include <getopt.h>
#include <xcb/xcb.h>
#include "util.h"
#include "arg.h"
static xcb_connection_t *conn;
static xcb_screen_t *scr;
static uint32_t mask = XCB_EVENT_MASK_NO_EVENT
/* | XCB_EVENT_MASK_KEY_PRESS */
/* | XCB_EVENT_MASK_KEY_RELEASE */
/* | XCB_EVENT_MASK_BUTTON_PRESS */
/* | XCB_EVENT_MASK_BUTTON_RELEASE */
| XCB_EVENT_MASK_ENTER_WINDOW
/* | XCB_EVENT_MASK_LEAVE_WINDOW */
/* | XCB_EVENT_MASK_POINTER_MOTION */
/* | XCB_EVENT_MASK_POINTER_MOTION_HINT */
/* | XCB_EVENT_MASK_BUTTON_1_MOTION */
/* | XCB_EVENT_MASK_BUTTON_2_MOTION */
/* | XCB_EVENT_MASK_BUTTON_3_MOTION */
/* | XCB_EVENT_MASK_BUTTON_4_MOTION */
/* | XCB_EVENT_MASK_BUTTON_5_MOTION */
/* | XCB_EVENT_MASK_BUTTON_MOTION */
/* | XCB_EVENT_MASK_KEYMAP_STATE */
/* | XCB_EVENT_MASK_EXPOSURE */
/* | XCB_EVENT_MASK_VISIBILITY_CHANGE */
/* | XCB_EVENT_MASK_STRUCTURE_NOTIFY */
/* | XCB_EVENT_MASK_RESIZE_REDIRECT */
/* | XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY */
/* | XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT */
/* | XCB_EVENT_MASK_FOCUS_CHANGE */
/* | XCB_EVENT_MASK_PROPERTY_CHANGE */
/* | XCB_EVENT_MASK_COLOR_MAP_CHANGE */
/* | XCB_EVENT_MASK_OWNER_GRAB_BUTTON */
;
void usage(char*);
void list_events(void);
void handle_events(void);
void register_events(xcb_window_t, uint32_t);
xcb_window_t get_window_id(xcb_generic_event_t*);
int motherfuckingenterevent(xcb_generic_event_t*);
void
usage(char *name)
{
fprintf(stderr, "usage: %s [-al] [-m <mask>]\n", name);
exit(1);
}
void
list_events(void)
{
printf(
"XCB_EVENT_MASK_NO_EVENT .............. 0\n"
"XCB_EVENT_MASK_KEY_PRESS ............. 1\n"
"XCB_EVENT_MASK_KEY_RELEASE ........... 2\n"
"XCB_EVENT_MASK_BUTTON_PRESS .......... 4\n"
"XCB_EVENT_MASK_BUTTON_RELEASE ........ 8\n"
"XCB_EVENT_MASK_ENTER_WINDOW .......... 16\n"
"XCB_EVENT_MASK_LEAVE_WINDOW .......... 32\n"
"XCB_EVENT_MASK_POINTER_MOTION ........ 64\n"
"XCB_EVENT_MASK_POINTER_MOTION_HINT ... 128\n"
"XCB_EVENT_MASK_BUTTON_1_MOTION ....... 256\n"
"XCB_EVENT_MASK_BUTTON_2_MOTION ....... 512\n"
"XCB_EVENT_MASK_BUTTON_3_MOTION ....... 1024\n"
"XCB_EVENT_MASK_BUTTON_4_MOTION ....... 2048\n"
"XCB_EVENT_MASK_BUTTON_5_MOTION ....... 4096\n"
"XCB_EVENT_MASK_BUTTON_MOTION ......... 8192\n"
"XCB_EVENT_MASK_KEYMAP_STATE .......... 16384\n"
"XCB_EVENT_MASK_EXPOSURE .............. 32768\n"
"XCB_EVENT_MASK_VISIBILITY_CHANGE ..... 65536\n"
"XCB_EVENT_MASK_STRUCTURE_NOTIFY ...... 131072\n"
"XCB_EVENT_MASK_RESIZE_REDIRECT ....... 262144\n"
"XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY ... 524288\n"
"XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT . 1048576\n"
"XCB_EVENT_MASK_FOCUS_CHANGE .......... 2097152\n"
"XCB_EVENT_MASK_PROPERTY_CHANGE ....... 4194304\n"
"XCB_EVENT_MASK_COLOR_MAP_CHANGE ...... 8388608\n"
"XCB_EVENT_MASK_OWNER_GRAB_BUTTON ..... 16777216\n"
);
}
void
register_events(xcb_window_t w, uint32_t m)
{
uint32_t val[] = { m };
xcb_change_window_attributes(conn, w, XCB_CW_EVENT_MASK, val);
xcb_flush(conn);
}
int
motherfuckingenterevent(xcb_generic_event_t *e)
{
xcb_enter_notify_event_t *ee;
ee = (xcb_enter_notify_event_t*)e;
if (ee->detail == 0 &&
(ee->mode == XCB_NOTIFY_MODE_NORMAL ||
ee->mode == XCB_NOTIFY_MODE_UNGRAB))
return 1;
return 0;
}
xcb_window_t
get_window_id(xcb_generic_event_t *e)
{
xcb_window_t wid;
wid = 0x0;
switch (e->response_type & ~0x80) {
case XCB_ENTER_NOTIFY:
case XCB_LEAVE_NOTIFY:
if (motherfuckingenterevent(e))
wid = ((xcb_enter_notify_event_t*)e)->event;
break;
case XCB_FOCUS_IN:
case XCB_FOCUS_OUT:
wid = ((xcb_focus_in_event_t*)e)->event;
break;
case XCB_CREATE_NOTIFY:
case XCB_DESTROY_NOTIFY:
wid = ((xcb_create_notify_event_t*)e)->window;
break;
case XCB_UNMAP_NOTIFY:
case XCB_MAP_NOTIFY:
wid = ((xcb_map_notify_event_t*)e)->window;
break;
case XCB_BUTTON_PRESS:
case XCB_BUTTON_RELEASE:
wid = ((xcb_button_press_event_t*)e)->child;
break;
/* please... handle me ... ;_;
case XCB_KEY_PRESS:
case XCB_KEY_RELEASE:
case XCB_MOTION_NOTIFY:
case XCB_KEYMAP_NOTIFY:
case XCB_EXPOSE:
case XCB_GRAPHICS_EXPOSURE:
case XCB_NO_EXPOSURE:
case XCB_VISIBILITY_NOTIFY:
case XCB_MAP_REQUEST:
case XCB_REPARENT_NOTIFY:
case XCB_CONFIGURE_NOTIFY:
case XCB_CONFIGURE_REQUEST:
case XCB_GRAVITY_NOTIFY:
case XCB_RESIZE_REQUEST:
case XCB_CIRCULATE_NOTIFY:
case XCB_CIRCULATE_REQUEST:
case XCB_PROPERTY_NOTIFY:
case XCB_SELECTION_CLEAR:
case XCB_SELECTION_REQUEST:
case XCB_SELECTION_NOTIFY:
case XCB_COLORMAP_NOTIFY:
case XCB_CLIENT_MESSAGE:
case XCB_MAPPING_NOTIFY:
*/
default:
return 0x0;
}
return wid;
}
void
handle_events(void)
{
int i, wn;
xcb_window_t *wc, wid = 0;
xcb_generic_event_t *e;
xcb_create_notify_event_t *ec;
/*
* We need to get notifed of window creations, no matter what, because
* we need to register the event mask on all newly created windows
*/
register_events(scr->root, XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY);
if (mask & XCB_EVENT_MASK_BUTTON_PRESS) {
xcb_grab_button(conn, 0, scr->root,
XCB_EVENT_MASK_BUTTON_PRESS |
XCB_EVENT_MASK_BUTTON_RELEASE,
XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC,
scr->root, XCB_NONE, 1, XCB_NONE);
}
/* register the events on all mapped windows */
wn = get_windows(conn, scr->root, &wc);
for (i=0; i<wn; i++)
register_events(wc[i], mask);
xcb_flush(conn);
for(;;) {
e = xcb_wait_for_event(conn);
switch (e->response_type & ~0x80)
{
case XCB_CREATE_NOTIFY:
ec = (xcb_create_notify_event_t*)e;
register_events(ec->window, mask);
default:
wid = get_window_id(e);
}
if (wid > 0) {
printf("%d:0x%08x\n", e->response_type, wid);
fflush(stdout);
}
}
}
int
main (int argc, char **argv)
{
char *argv0;
ARGBEGIN {
case 'l':
list_events();
exit(0);
case 'm':
mask = strtoul(EARGF(usage(argv0)), NULL, 10);
break;
default: usage(argv0);
} ARGEND;
init_xcb(&conn);
get_screen(conn, &scr);
handle_events();
kill_xcb(&conn);
return 0;
}