Refactor seat operations to use an interface

This splits each seat operation (drag/move tiling/floating etc) into a
separate file and introduces a struct sway_seatop_impl to abstract the
operation.

The move_tiling_threshold operation has been merged into move_tiling.

The main logic for each operation is untouched aside from variable
renames.

The following previously-static functions have been made public:
* node_at_coords
* container_raise_floating
* render_rect
* premultiply_alpha
* scale_box

1 files changed, 2 insertions, 2 deletions

diff --git a/sway/desktop/xdg_shell.c b/sway/desktop/xdg_shell.c
index 801dcee0..f05e156f 100644
--- a/sway/desktop/xdg_shell.c
+++ b/sway/desktop/xdg_shell.c
@@ -360,7 +360,7 @@ static void handle_request_move(struct wl_listener *listener, void *data) {
         struct wlr_xdg_toplevel_move_event *e = data;
         struct sway_seat *seat = e->seat->seat->data;
         if (e->serial == seat->last_button_serial) {
-                seat_begin_move_floating(seat, view->container, seat->last_button);
+                seatop_begin_move_floating(seat, view->container, seat->last_button);
         }
 }
 
@@ -374,7 +374,7 @@ static void handle_request_resize(struct wl_listener *listener, void *data) {
         struct wlr_xdg_toplevel_resize_event *e = data;
         struct sway_seat *seat = e->seat->seat->data;
         if (e->serial == seat->last_button_serial) {
-                seat_begin_resize_floating(seat, view->container,
+                seatop_begin_resize_floating(seat, view->container,
                                 seat->last_button, e->edges);
         }
 }