add xwayland unmanaged tests to support dmenu

This adds `wlr_xwayland_surface_is_unamanged`, to allow compositors more
fine grained control over XWayland focus.
A surface that is unmanaged should not receive focus, while other
windows that are just override redirect may want it (dmenu).
The way unamanged is determined is taken from wlc.

2 files changed, 41 insertions, 0 deletions

diff --git a/xwayland/xwayland.c b/xwayland/xwayland.c
index 1d935180..8dffd040 100644
--- a/xwayland/xwayland.c
+++ b/xwayland/xwayland.c
@@ -405,3 +405,24 @@ void wlr_xwayland_set_seat(struct wlr_xwayland *xwayland,
 	xwayland->seat_destroy.notify = wlr_xwayland_handle_seat_destroy;
 	wl_signal_add(&seat->events.destroy, &xwayland->seat_destroy);
 }
+
+
+bool wlr_xwayland_surface_is_unmanaged(const struct wlr_xwayland_surface *surface) {
+	static enum atom_name needles[] = {
+		NET_WM_WINDOW_TYPE_UTILITY,
+		NET_WM_WINDOW_TYPE_TOOLTIP,
+		NET_WM_WINDOW_TYPE_DND,
+		NET_WM_WINDOW_TYPE_DROPDOWN_MENU,
+		NET_WM_WINDOW_TYPE_POPUP_MENU,
+		NET_WM_WINDOW_TYPE_COMBO,
+	};
+
+	for (size_t i = 0; i < sizeof(needles) / sizeof(needles[0]); ++i) {
+		if (wlr_xwm_atoms_contains(surface->xwm, surface->window_type,
+				surface->window_type_len, needles[i])) {
+			return true;
+		}
+	}
+
+	return false;
+}
diff --git a/xwayland/xwm.c b/xwayland/xwm.c
index 0d957260..c41b8d47 100644
--- a/xwayland/xwm.c
+++ b/xwayland/xwm.c
@@ -54,6 +54,12 @@ const char *atom_map[ATOM_LAST] = {
 	"INCR",
 	"TEXT",
 	"TIMESTAMP",
+	"_NET_WM_WINDOW_TYPE_UTILITY",
+	"_NET_WM_WINDOW_TYPE_TOOLTIP",
+	"_NET_WM_WINDOW_TYPE_DND",
+	"_NET_WM_WINDOW_TYPE_DROPDOWN_MENU",
+	"_NET_WM_WINDOW_TYPE_POPUP_MENU",
+	"_NET_WM_WINDOW_TYPE_COMBO",
 };
 
 /* General helpers */
@@ -1446,3 +1452,17 @@ void wlr_xwayland_surface_set_fullscreen(struct wlr_xwayland_surface *surface,
 	xsurface_set_net_wm_state(surface);
 	xcb_flush(surface->xwm->xcb_conn);
 }
+
+bool wlr_xwm_atoms_contains(struct wlr_xwm *xwm, xcb_atom_t *atoms,
+		size_t num_atoms, enum atom_name needle) {
+	xcb_atom_t atom = xwm->atoms[needle];
+
+	for (size_t i = 0; i < num_atoms; ++i) {
+		if (atom == atoms[i]) {
+			return true;
+		}
+	}
+
+	return false;
+}
+