Allow containers to float

Things worth noting:

* When a fullscreen view unmaps, the check to unset fullscreen on the
workspace has been moved out of view_unmap and into container_destroy,
because containers can be fullscreen too
* The calls to `container_reap_empty_recursive(workspace)` have been
removed from `container_set_floating`. That function reaps upwards so it
wouldn't do anything. I'm probably the one who originally added it...
* My fix (b14bd1b0b1536039e4f46fe94515c7c44e7afc61) for the tabbed child
crash has a side effect where when you close a floating container, focus
is not given to the tiled container again. I've removed my fix and
removed the call to `send_cursor_motion` from `seat_set_focus_warp`. We
should consider calling it from somewhere earlier in the call stack.

1 files changed, 11 insertions, 0 deletions

diff --git a/include/sway/tree/container.h b/include/sway/tree/container.h
index c584cd92..d91b3bf1 100644
--- a/include/sway/tree/container.h
+++ b/include/sway/tree/container.h
@@ -297,6 +297,11 @@ void container_notify_subtree_changed(struct sway_container *container);
  */
 size_t container_titlebar_height(void);
 
+/**
+ * Resize and center the container in its workspace.
+ */
+void container_init_floating(struct sway_container *container);
+
 void container_set_floating(struct sway_container *container, bool enable);
 
 void container_set_geometry_from_floating_view(struct sway_container *con);
@@ -341,6 +346,12 @@ void container_end_mouse_operation(struct sway_container *container);
 void container_set_fullscreen(struct sway_container *container, bool enable);
 
 /**
+ * Return true if the container is floating, or a child of a floating split
+ * container.
+ */
+bool container_is_floating_or_child(struct sway_container *container);
+
+/**
  * Return true if the container is fullscreen, or a child of a fullscreen split
  * container.
  */