Minor refactor of input manager

The input manager is a singleton object. Passing the sway_input_manager
argument to each of its functions is unnecessary, while removing the
argument makes it obvious to the caller that it's a singleton. This
patch removes the argument and makes the input manager use server.input
instead.

On a similar note:

* sway_input_manager.server is removed in favour of using the server
global.
* seat.input is removed because it can get it from server.input.

Due to a circular dependency, creating seat0 is now done directly in
server_init rather than in input_manager_create. This is because
creating seats must be done after server.input is set.

Lastly, it now stores the default seat name using a constant and removes
a second reference to seat0 (in input_manager_get_default_seat).

1 files changed, 2 insertions, 2 deletions

diff --git a/sway/commands.c b/sway/commands.c
index 8db1df01..d1275a1e 100644
--- a/sway/commands.c
+++ b/sway/commands.c
@@ -68,7 +68,7 @@ void apply_seat_config(struct seat_config *seat_config) {
                 list_add(config->seat_configs, seat_config);
         }
 
-        input_manager_apply_seat_config(input_manager, seat_config);
+        input_manager_apply_seat_config(seat_config);
 }
 
 /* Keep alphabetized */
@@ -240,7 +240,7 @@ struct cmd_results *execute_command(char *_exec, struct sway_seat *seat,
 
         if (seat == NULL) {
                 // passing a NULL seat means we just pick the default seat
-                seat = input_manager_get_default_seat(input_manager);
+                seat = input_manager_get_default_seat();
                 if (!sway_assert(seat, "could not find a seat to run the command on")) {
                         return NULL;
                 }