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, 1 insertions, 1 deletions

diff --git a/sway/tree/container.c b/sway/tree/container.c
index baaa82fd..d75e34a5 100644
--- a/sway/tree/container.c
+++ b/sway/tree/container.c
@@ -715,7 +715,7 @@ void container_set_geometry_from_floating_view(struct sway_container *con) {
         size_t border_width = 0;
         size_t top = 0;
 
-        if (!view->using_csd) {
+        if (view->border != B_CSD) {
                 border_width = view->border_thickness * (view->border != B_NONE);
                 top = view->border == B_NORMAL ?
                         container_titlebar_height() : border_width;