/**
* @brief Create the EWMH connection, request all of the atoms and set some
* sensible defaults for them.
*/
void setup_ewmh(void)
{
xcb_ewmh_coordinates_t viewport[] = { {0, 0} };
xcb_ewmh_geometry_t workarea[] = { {0, conf.bar_bottom ? 0 : wss[cw].bar_height,
screen_width, screen_height - wss[cw].bar_height} };
ewmh = calloc(1, sizeof(xcb_ewmh_connection_t));
if (!ewmh) {
log_err("Unable to create ewmh connection\n");
exit(EXIT_FAILURE);
}
if (xcb_ewmh_init_atoms_replies(ewmh, xcb_ewmh_init_atoms(dpy, ewmh), NULL) == 0)
log_err("Couldn't initialise ewmh atoms");
xcb_atom_t ewmh_net_atoms[] = { ewmh->_NET_SUPPORTED,
ewmh->_NET_SUPPORTING_WM_CHECK,
ewmh->_NET_DESKTOP_VIEWPORT,
ewmh->_NET_WM_NAME,
ewmh->_NET_WM_STATE,
ewmh->_NET_CLOSE_WINDOW,
ewmh->_NET_WM_STATE_FULLSCREEN,
ewmh->_NET_CURRENT_DESKTOP,
ewmh->_NET_NUMBER_OF_DESKTOPS,
ewmh->_NET_DESKTOP_GEOMETRY,
ewmh->_NET_WORKAREA,
ewmh->_NET_ACTIVE_WINDOW };
xcb_ewmh_set_supported(ewmh, 0, LENGTH(ewmh_net_atoms), ewmh_net_atoms);
xcb_ewmh_set_supporting_wm_check(ewmh, 0, screen->root);
xcb_ewmh_set_desktop_viewport(ewmh, 0, LENGTH(viewport), viewport);
xcb_ewmh_set_wm_name(ewmh, 0, strlen("howm"), "howm");
xcb_ewmh_set_current_desktop(ewmh, 0, cw);
xcb_ewmh_set_number_of_desktops(ewmh, 0, WORKSPACES);
xcb_ewmh_set_workarea(ewmh, 0, LENGTH(workarea), workarea);
xcb_ewmh_set_desktop_geometry(ewmh, 0, screen_width, screen_height);
}
void ewmh_set_supporting(xcb_window_t win)
{
pid_t wm_pid = getpid();
xcb_ewmh_set_supporting_wm_check(ewmh, root, win);
xcb_ewmh_set_supporting_wm_check(ewmh, win, win);
xcb_ewmh_set_wm_name(ewmh, win, strlen(WM_NAME), WM_NAME);
xcb_ewmh_set_wm_pid(ewmh, win, wm_pid);
}
void
create_wm_cm_window(xcwm_context_t *context)
{
context->wm_cm_window = xcb_generate_id(context->conn);
printf("Created WM/CM window with XID 0x%08x\n", context->wm_cm_window);
xcb_create_window(context->conn,
XCB_COPY_FROM_PARENT,
context->wm_cm_window,
context->root_window->window_id,
0, 0, 1, 1, 0, /* 1x1 size, no border */
XCB_COPY_FROM_PARENT,
XCB_COPY_FROM_PARENT,
0, NULL);
/* Set the name for the window */
xcb_ewmh_set_wm_name(&context->atoms.ewmh_conn,
context->wm_cm_window,
strlen("xcwm"), "xcwm");
/* Set the atoms for the window */
xcb_ewmh_set_supporting_wm_check(&context->atoms.ewmh_conn,
context->root_window->window_id,
context->wm_cm_window);
xcb_ewmh_set_supporting_wm_check(&context->atoms.ewmh_conn,
context->wm_cm_window,
context->wm_cm_window);
/* Take & announce ownership of the _NET_CM_Sn selection */
xcb_ewmh_set_wm_cm_owner(&context->atoms.ewmh_conn,
context->conn_screen,
context->wm_cm_window,
XCB_CURRENT_TIME,
0, 0);
/* Likewise WM_Sn selection */
/* XXX: Need to do this in a way which complies with ICCCM "Manager Selections" i.e.
use an actual timestamp, so in the case of races, we either acquire selection or don't */
}
inline
void ewmh_update_wm_name(const char *wm_name)
{
xcb_ewmh_set_wm_name(cfg.ewmh, cfg.screen->root, strlen(wm_name), wm_name);
}
