Add CSD to border modes

This replaces view.using_csd with a new border mode: B_CSD. This also
removes sway_xdg_shell{_v6}_view.deco_mode and
view->has_client_side_decorations as we can now get these from the
border.

You can use `border toggle` to cycle through the modes including CSD, or
use `border csd` to set it directly. The client must support the
xdg-decoration protocol, and the only client I know of that does is the
example in wlroots.

If the client switches from SSD to CSD without us expecting it (via the
server-decoration protocol), we stash the previous border type into
view.saved_border so we can restore it if the client returns to SSD. I
haven't found a way to test this though.

1 files changed, 8 insertions, 14 deletions

diff --git a/sway/decoration.c b/sway/decoration.c
index 0e3e67ac..fea6ed4c 100644
--- a/sway/decoration.c
+++ b/sway/decoration.c
@@ -1,6 +1,8 @@
 #include <stdlib.h>
 #include "sway/decoration.h"
+#include "sway/desktop/transaction.h"
 #include "sway/server.h"
+#include "sway/tree/arrange.h"
 #include "sway/tree/view.h"
 #include "log.h"
 
@@ -24,20 +26,12 @@ static void server_decoration_handle_mode(struct wl_listener *listener,
                 return;
         }
 
-        switch (view->type) {
-        case SWAY_VIEW_XDG_SHELL_V6:;
-                struct sway_xdg_shell_v6_view *xdg_shell_v6_view =
-                        (struct sway_xdg_shell_v6_view *)view;
-                xdg_shell_v6_view->deco_mode = deco->wlr_server_decoration->mode;
-                break;
-        case SWAY_VIEW_XDG_SHELL:;
-                struct sway_xdg_shell_view *xdg_shell_view =
-                        (struct sway_xdg_shell_view *)view;
-                xdg_shell_view->deco_mode = deco->wlr_server_decoration->mode;
-                break;
-        default:
-                break;
-        }
+        bool csd = deco->wlr_server_decoration->mode ==
+                        WLR_SERVER_DECORATION_MANAGER_MODE_CLIENT;
+        view_set_csd_from_client(view, csd);
+
+        arrange_container(view->container);
+        transaction_commit_dirty();
 }
 
 void handle_server_decoration(struct wl_listener *listener, void *data) {