int run(config_t* config, key_handler_t key_handler)
{
int default_screen;
xcb_connection_t* c = xcb_connect(NULL, &default_screen);
if(xcb_connection_has_error(c))
{
fprintf(stderr, "Cannot open display %s\n",
getenv("DISPLAY") ? getenv("DISPLAY") : "<NULL>");
return -1;
}
xcb_screen_t* screen;
if(!(screen = xcb_aux_get_screen(c, default_screen)))
{
fprintf(stderr, "Cannot obtain default screen.\n");
return -1;
}
context_t context = { config, key_handler };
xcb_event_handlers_t eh;
memset(&eh, 0, sizeof(xcb_event_handlers_t));
xcb_event_handlers_init(c, &eh);
xcb_event_set_key_press_handler(&eh, handle_keypress, &context);
xcb_void_cookie_t* cookies = alloca(sizeof(xcb_void_cookie_t)
* config->count);
if(!cookies)
return -1;
int i;
for(i = 0; i < config->count; ++i)
cookies[i] = xcb_grab_key(c, true, screen->root,
config->keys[i].is_alt ? XCB_MOD_MASK_1 : 0,
config->keys[i].keysym, XCB_GRAB_MODE_ASYNC,
XCB_GRAB_MODE_ASYNC);
for(i = 0; i < config->count; ++i)
{
xcb_generic_error_t* e = xcb_request_check(c, cookies[i]);
if(e)
{
fprintf(stderr, "WARNING: unable to grab key: %d\n", e->error_code);
free(e);
}
}
xcb_generic_event_t* e;
while((e = xcb_wait_for_event(c)))
{
xcb_event_handle(&eh, e);
free(e);
}
return 0;
}
void set_event_handlers(xcb_event_handlers_t *handlers)
{
xcb_event_set_button_press_handler(handlers, handle_button_press_event, NULL);
xcb_event_set_button_release_handler(handlers, handle_button_release_event, NULL);
xcb_event_set_configure_request_handler(handlers, handle_configure_request_event, NULL);
xcb_event_set_configure_notify_handler(handlers, handle_configure_notify_event, NULL);
xcb_event_set_destroy_notify_handler(handlers, handle_destroy_notify_event, NULL);
xcb_event_set_enter_notify_handler(handlers, handle_enter_notify_event, NULL);
xcb_event_set_leave_notify_handler(handlers, handle_leave_notify_event, NULL);
xcb_event_set_focus_in_handler(handlers, handle_focus_in_event, NULL);
xcb_event_set_motion_notify_handler(handlers, handle_motion_notify_event, NULL);
xcb_event_set_expose_handler(handlers, handle_expose_event, NULL);
xcb_event_set_key_press_handler(handlers, handle_key_press_event, NULL);
xcb_event_set_key_release_handler(handlers, handle_key_release_event, NULL);
xcb_event_set_map_request_handler(handlers, handle_map_request_event, NULL);
xcb_event_set_unmap_notify_handler(handlers, handle_unmap_notify_event, NULL);
xcb_event_set_client_message_handler(handlers, handle_client_message_event, NULL);
xcb_event_set_mapping_notify_handler(handlers, handle_mapping_notify_event, NULL);
xcb_event_set_reparent_notify_handler(handlers, handle_reparent_notify_event, NULL);
}
