#define SELECTION_MASK (XCB_EVENT_MASK_STRUCTURE_NOTIFY | \
XCB_EVENT_MASK_PROPERTY_CHANGE)
-static void screen_init(d_screen_t *sc);
+static gboolean screen_init(d_screen_t *sc);
static xcb_timestamp_t screen_timestamp(d_screen_t *sc);
gboolean
arep = xcb_intern_atom_reply(sc->dpy->conn, ack, NULL);
g_free(name);
+ xcb_grab_server(sc->dpy->conn);
+
sck = xcb_get_selection_owner(sc->dpy->conn, arep->atom);
srep = xcb_get_selection_owner_reply(sc->dpy->conn, sck, NULL);
taken = !!srep->owner;
time = screen_timestamp(sc);
- xcb_grab_server(sc->dpy->conn);
xcb_set_selection_owner(sc->dpy->conn, w, arep->atom, time);
sck = xcb_get_selection_owner(sc->dpy->conn, arep->atom);
srep = xcb_get_selection_owner_reply(sc->dpy->conn, sck, NULL);
taken = srep->owner == w;
- if (taken) {
- screen_init(sc);
+ if (taken && screen_init(sc))
ret = TRUE;
- }
else {
xcb_destroy_window(sc->dpy->conn, w);
ret = FALSE;
}
- xcb_ungrab_server(sc->dpy->conn);
- xcb_flush(sc->dpy->conn);
}
+
+ xcb_ungrab_server(sc->dpy->conn);
+ xcb_flush(sc->dpy->conn);
return ret;
}
static gboolean
window_compare(xcb_window_t *w1, xcb_window_t *w2) { return *w1 == *w2; }
-static void
+static gboolean
screen_init(d_screen_t *sc)
{
uint32_t mask;
+ xcb_generic_error_t *err;
+ xcb_void_cookie_t redir_ck;
+ xcb_composite_get_overlay_window_cookie_t overlay_ck;
+ xcb_composite_get_overlay_window_reply_t *overlay_rep;
sc->winhash = g_hash_table_new((GHashFunc)window_hash,
(GCompareFunc)window_compare);
-// xcb_composite_redirect_subwindows(sc->dpy->conn, sc->super.root,
-// XCB_COMPOSITE_REDIRECT_MANUAL);
+ redir_ck =
+ xcb_composite_redirect_subwindows(sc->dpy->conn, sc->super.root,
+ XCB_COMPOSITE_REDIRECT_MANUAL);
+
+ overlay_ck = xcb_composite_get_overlay_window(sc->dpy->conn,
+ sc->super.root);
+
+ /* check that the redirect worked */
+ err = xcb_request_check(sc->dpy->conn, redir_ck);
+ if (err) {
+ printf(_("unable to redirect rendering, another composite manager must be running"));
+ free(err);
+ return FALSE;
+ }
+
+ /* get the overlay window reply */
+ overlay_rep = xcb_composite_get_overlay_window_reply(sc->dpy->conn,
+ overlay_ck,
+ NULL);
+ if (!overlay_rep) {
+ printf(_("unable to get the composite overlay window\n"));
+ return FALSE;
+ }
+ sc->overlay = overlay_rep->overlay_win;
+ free(overlay_rep);
mask = SELECTION_MASK;
xcb_change_window_attributes(sc->dpy->conn, sc->selwin,
mask = ROOT_MASK;
xcb_change_window_attributes(sc->dpy->conn, sc->super.root,
XCB_CW_EVENT_MASK, &mask);
+ return TRUE;
}
void