Dont try and fullscreen a workspace with no views

Found this completely by accident

1 files changed, 3 insertions, 0 deletions

diff --git a/sway/commands.c b/sway/commands.c
index fe341cd5..4d5018a0 100644
--- a/sway/commands.c
+++ b/sway/commands.c
@@ -1435,6 +1435,9 @@ static struct cmd_results *cmd_fullscreen(int argc, char **argv) {
                 return error;
         }
         swayc_t *container = get_focused_view(&root_container);
+        if(container->type != C_VIEW){
+                return cmd_results_new(CMD_INVALID, "fullscreen", "Only views can fullscreen");
+        }
         swayc_t *workspace = swayc_parent_by_type(container, C_WORKSPACE);
         bool current = swayc_is_fullscreen(container);
         wlc_view_set_state(container->handle, WLC_BIT_FULLSCREEN, !current);