rootston-desktop: popup input handling

rootston/desktop.c

@@ -93,6 +93,36 @@ static struct wlr_subsurface *subsurface_at(struct wlr_surface *surface,
 	return NULL;
 }
 
+static struct wlr_xdg_surface_v6 *xdg_v6_popup_at(
+		struct wlr_xdg_surface_v6 *surface, double sx, double sy,
+		double *popup_sx, double *popup_sy) {
+	struct wlr_xdg_surface_v6 *popup;
+	wl_list_for_each(popup, &surface->popups, popup_link) {
+		double _popup_sx = surface->geometry->x + popup->popup_state->geometry.x;
+		double _popup_sy =  surface->geometry->y + popup->popup_state->geometry.y;
+		int popup_width =  popup->popup_state->geometry.width;
+		int popup_height =  popup->popup_state->geometry.height;
+
+		struct wlr_xdg_surface_v6 *_popup =
+			xdg_v6_popup_at(popup, sx - _popup_sx + popup->geometry->x,
+				sy - _popup_sy + popup->geometry->y, popup_sx, popup_sy);
+		if (_popup) {
+			*popup_sx = *popup_sx + _popup_sx - popup->geometry->x;
+			*popup_sy = *popup_sy + _popup_sy - popup->geometry->y;
+			return _popup;
+		}
+
+		if ((sx > _popup_sx && sx < _popup_sx + popup_width) &&
+				(sy > _popup_sy && sy < _popup_sy + popup_height)) {
+			*popup_sx = _popup_sx - popup->geometry->x;
+			*popup_sy = _popup_sy - popup->geometry->y;
+			return popup;
+		}
+	}
+
+	return NULL;
+}
+
 struct roots_view *view_at(struct roots_desktop *desktop, double lx, double ly,
 		struct wlr_surface **surface, double *sx, double *sy) {
 	for (int i = desktop->views->length - 1; i >= 0; --i) {
@@ -101,6 +131,20 @@ struct roots_view *view_at(struct roots_desktop *desktop, double lx, double ly,
 		double view_sx = lx - view->x;
 		double view_sy = ly - view->y;
 
+		if (view->type == ROOTS_XDG_SHELL_V6_VIEW) {
+			double popup_sx, popup_sy;
+			struct wlr_xdg_surface_v6 *popup =
+				xdg_v6_popup_at(view->xdg_surface_v6, view_sx, view_sy,
+					&popup_sx, &popup_sy);
+
+			if (popup) {
+				*sx = view_sx - popup_sx;
+				*sy = view_sy - popup_sy;
+				*surface = popup->surface;
+				return view;
+			}
+		}
+
 		double sub_x, sub_y;
 		struct wlr_subsurface *subsurface =
 			subsurface_at(view->wlr_surface, view_sx, view_sy, &sub_x, &sub_y);