- if (floating_child->window == NULL ||
- fullscreen->window == NULL ||
- floating_child->window->transient_for != fullscreen->window->id)
+ while (transient_con != NULL &&
+ transient_con->window != NULL &&
+ transient_con->window->transient_for != XCB_NONE) {
+ DLOG("transient_con = 0x%08x, transient_con->window->transient_for = 0x%08x, fullscreen_id = 0x%08x\n",
+ transient_con->window->id, transient_con->window->transient_for, fullscreen->window->id);
+ if (transient_con->window->transient_for == fullscreen->window->id) {
+ is_transient_for = true;
+ break;
+ }
+ Con *next_transient = con_by_window_id(transient_con->window->transient_for);
+ if (next_transient == NULL)
+ break;
+ /* Some clients (e.g. x11-ssh-askpass) actually set
+ * WM_TRANSIENT_FOR to their own window id, so break instead of
+ * looping endlessly. */
+ if (transient_con == next_transient)
+ break;
+ transient_con = next_transient;
+ }
+
+ if (!is_transient_for)