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).

26 files changed, 107 insertions, 125 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;
                 }
diff --git a/sway/commands/border.c b/sway/commands/border.c
index a50f7a1c..5b65148d 100644
--- a/sway/commands/border.c
+++ b/sway/commands/border.c
@@ -94,7 +94,7 @@ struct cmd_results *cmd_border(int argc, char **argv) {
 
         arrange_container(view->container);
 
-        struct sway_seat *seat = input_manager_current_seat(input_manager);
+        struct sway_seat *seat = input_manager_current_seat();
         if (seat->cursor) {
                 cursor_rebase(seat->cursor);
         }
diff --git a/sway/commands/input.c b/sway/commands/input.c
index 2889d47d..c50926a8 100644
--- a/sway/commands/input.c
+++ b/sway/commands/input.c
@@ -71,7 +71,7 @@ struct cmd_results *cmd_input(int argc, char **argv) {
                 struct input_config *ic =
                         store_input_config(config->handler_context.input_config);
 
-                input_manager_apply_input_config(input_manager, ic);
+                input_manager_apply_input_config(ic);
         } else {
                 free_input_config(config->handler_context.input_config);
         }
diff --git a/sway/commands/move.c b/sway/commands/move.c
index cb7f6009..941b284a 100644
--- a/sway/commands/move.c
+++ b/sway/commands/move.c
@@ -103,7 +103,7 @@ static void workspace_focus_fullscreen(struct sway_workspace *workspace) {
         }
         struct sway_seat *seat;
         struct sway_workspace *focus_ws;
-        wl_list_for_each(seat, &input_manager->seats, link) {
+        wl_list_for_each(seat, &server.input->seats, link) {
                 focus_ws = seat_get_focused_workspace(seat);
                 if (focus_ws == workspace) {
                         struct sway_node *new_focus =
diff --git a/sway/commands/scratchpad.c b/sway/commands/scratchpad.c
index d8bae615..26f0e490 100644
--- a/sway/commands/scratchpad.c
+++ b/sway/commands/scratchpad.c
@@ -8,7 +8,7 @@
 #include "sway/tree/workspace.h"
 
 static void scratchpad_toggle_auto(void) {
-        struct sway_seat *seat = input_manager_current_seat(input_manager);
+        struct sway_seat *seat = input_manager_current_seat();
         struct sway_container *focus = seat_get_focused_container(seat);
         struct sway_workspace *ws = seat_get_focused_workspace(seat);
 
diff --git a/sway/commands/swap.c b/sway/commands/swap.c
index 8a6dfdbd..6062724d 100644
--- a/sway/commands/swap.c
+++ b/sway/commands/swap.c
@@ -108,7 +108,7 @@ static void container_swap(struct sway_container *con1,
                 container_set_fullscreen(con2, false);
         }
 
-        struct sway_seat *seat = input_manager_get_default_seat(input_manager);
+        struct sway_seat *seat = input_manager_get_default_seat();
         struct sway_container *focus = seat_get_focused_container(seat);
         struct sway_workspace *vis1 =
                 output_get_active_workspace(con1->workspace->output);
diff --git a/sway/config.c b/sway/config.c
index 89b89464..f683e7ab 100644
--- a/sway/config.c
+++ b/sway/config.c
@@ -151,8 +151,7 @@ static void destroy_removed_seats(struct sway_config *old_config,
                 /* Also destroy seats that aren't present in new config */
                 if (new_config && list_seq_find(new_config->seat_configs,
                                 seat_name_cmp, seat_config->name) < 0) {
-                        seat = input_manager_get_seat(input_manager,
-                                seat_config->name);
+                        seat = input_manager_get_seat(seat_config->name);
                         seat_destroy(seat);
                 }
         }
diff --git a/sway/criteria.c b/sway/criteria.c
index 575e8bcf..e00d638c 100644
--- a/sway/criteria.c
+++ b/sway/criteria.c
@@ -356,7 +356,7 @@ static enum criteria_token token_from_name(char *name) {
  * criteria is only executed once per view.
  */
 static char *get_focused_prop(enum criteria_token token) {
-        struct sway_seat *seat = input_manager_current_seat(input_manager);
+        struct sway_seat *seat = input_manager_current_seat();
         struct sway_container *focus = seat_get_focused_container(seat);
 
         if (!focus || !focus->view) {
diff --git a/sway/debug-tree.c b/sway/debug-tree.c
index 16b479f9..b3266241 100644
--- a/sway/debug-tree.c
+++ b/sway/debug-tree.c
@@ -140,7 +140,7 @@ void update_debug_tree(void) {
         cairo_t *cairo = cairo_create(surface);
         PangoContext *pango = pango_cairo_create_context(cairo);
 
-        struct sway_seat *seat = input_manager_current_seat(input_manager);
+        struct sway_seat *seat = input_manager_current_seat();
         struct sway_node *focus = seat_get_focus(seat);
 
         cairo_set_source_u32(cairo, 0x000000FF);
diff --git a/sway/desktop/layer_shell.c b/sway/desktop/layer_shell.c
index 269864d4..cabb07f5 100644
--- a/sway/desktop/layer_shell.c
+++ b/sway/desktop/layer_shell.c
@@ -211,7 +211,7 @@ void arrange_layers(struct sway_output *output) {
         }
 
         struct sway_seat *seat;
-        wl_list_for_each(seat, &input_manager->seats, link) {
+        wl_list_for_each(seat, &server.input->seats, link) {
                 seat_set_focus_layer(seat, topmost ? topmost->layer_surface : NULL);
         }
 }
@@ -241,7 +241,7 @@ static void handle_output_destroy(struct wl_listener *listener, void *data) {
                 wl_container_of(listener, sway_layer, output_destroy);
         // Determine if this layer is being used by an exclusive client. If it is,
         // try and find another layer owned by this client to pass focus to.
-        struct sway_seat *seat = input_manager_get_default_seat(input_manager);
+        struct sway_seat *seat = input_manager_get_default_seat();
         struct wl_client *client =
                 wl_resource_get_client(sway_layer->layer_surface->resource);
         bool set_focus = seat->exclusive_client == client;
@@ -299,7 +299,7 @@ static void unmap(struct sway_layer_surface *sway_layer) {
         output_damage_surface(output, sway_layer->geo.x, sway_layer->geo.y,
                 sway_layer->layer_surface->surface, true);
 
-        struct sway_seat *seat = input_manager_current_seat(input_manager);
+        struct sway_seat *seat = input_manager_current_seat();
         if (seat->focused_layer == sway_layer->layer_surface) {
                 seat_set_focus_layer(seat, NULL);
         }
@@ -370,7 +370,7 @@ void handle_layer_shell_surface(struct wl_listener *listener, void *data) {
         if (!layer_surface->output) {
                 // Assign last active output
                 struct sway_output *output = NULL;
-                struct sway_seat *seat = input_manager_get_default_seat(input_manager);
+                struct sway_seat *seat = input_manager_get_default_seat();
                 if (seat) {
                         struct sway_workspace *ws = seat_get_focused_workspace(seat);
 
diff --git a/sway/desktop/output.c b/sway/desktop/output.c
index fc52dd28..018a7285 100644
--- a/sway/desktop/output.c
+++ b/sway/desktop/output.c
@@ -235,7 +235,7 @@ static void scale_box(struct wlr_box *box, float scale) {
 }
 
 struct sway_workspace *output_get_active_workspace(struct sway_output *output) {
-        struct sway_seat *seat = input_manager_current_seat(input_manager);
+        struct sway_seat *seat = input_manager_current_seat();
         struct sway_node *focus = seat_get_active_tiling_child(seat, &output->node);
         if (!focus) {
                 return output->workspaces->items[0];
diff --git a/sway/desktop/render.c b/sway/desktop/render.c
index 9b26c560..1a72f752 100644
--- a/sway/desktop/render.c
+++ b/sway/desktop/render.c
@@ -885,7 +885,7 @@ static void render_floating(struct sway_output *soutput,
 static void render_dropzones(struct sway_output *output,
                 pixman_region32_t *damage) {
         struct sway_seat *seat;
-        wl_list_for_each(seat, &input_manager->seats, link) {
+        wl_list_for_each(seat, &server.input->seats, link) {
                 if (seat->operation == OP_MOVE_TILING && seat->op_target_node
                                 && node_get_output(seat->op_target_node) == output) {
                         float color[4];
@@ -995,7 +995,7 @@ void output_render(struct sway_output *output, struct timespec *when,
 
         render_dropzones(output, damage);
 
-        struct sway_seat *seat = input_manager_current_seat(input_manager);
+        struct sway_seat *seat = input_manager_current_seat();
         struct sway_container *focus = seat_get_focused_container(seat);
         if (focus && focus->view) {
                 render_view_popups(focus->view, output, damage, focus->alpha);
diff --git a/sway/desktop/transaction.c b/sway/desktop/transaction.c
index e717ee35..5dec279d 100644
--- a/sway/desktop/transaction.c
+++ b/sway/desktop/transaction.c
@@ -110,7 +110,7 @@ static void copy_workspace_state(struct sway_workspace *ws,
         list_cat(state->floating, ws->floating);
         list_cat(state->tiling, ws->tiling);
 
-        struct sway_seat *seat = input_manager_current_seat(input_manager);
+        struct sway_seat *seat = input_manager_current_seat();
         state->focused = seat_get_focus(seat) == &ws->node;
 
         // Set focused_inactive_child to the direct tiling child
@@ -153,7 +153,7 @@ static void copy_container_state(struct sway_container *container,
                 list_cat(state->children, container->children);
         }
 
-        struct sway_seat *seat = input_manager_current_seat(input_manager);
+        struct sway_seat *seat = input_manager_current_seat();
         state->focused = seat_get_focus(seat) == &container->node;
 
         if (!container->view) {
diff --git a/sway/desktop/xwayland.c b/sway/desktop/xwayland.c
index 066556b8..58cb4d07 100644
--- a/sway/desktop/xwayland.c
+++ b/sway/desktop/xwayland.c
@@ -70,9 +70,8 @@ static void unmanaged_handle_map(struct wl_listener *listener, void *data) {
         desktop_damage_surface(xsurface->surface, surface->lx, surface->ly, true);
 
         if (wlr_xwayland_or_surface_wants_focus(xsurface)) {
-                struct sway_seat *seat = input_manager_current_seat(input_manager);
-                struct wlr_xwayland *xwayland =
-                        seat->input->server->xwayland.wlr_xwayland;
+                struct sway_seat *seat = input_manager_current_seat();
+                struct wlr_xwayland *xwayland = server.xwayland.wlr_xwayland;
                 wlr_xwayland_set_seat(xwayland, seat->wlr_seat);
                 seat_set_focus_surface(seat, xsurface->surface, false);
         }
@@ -86,7 +85,7 @@ static void unmanaged_handle_unmap(struct wl_listener *listener, void *data) {
         wl_list_remove(&surface->link);
         wl_list_remove(&surface->commit.link);
 
-        struct sway_seat *seat = input_manager_current_seat(input_manager);
+        struct sway_seat *seat = input_manager_current_seat();
         if (seat->wlr_seat->keyboard_state.focused_surface ==
                         xsurface->surface) {
                 // Restore focus
@@ -457,7 +456,7 @@ static void handle_request_move(struct wl_listener *listener, void *data) {
         if (!container_is_floating(view->container)) {
                 return;
         }
-        struct sway_seat *seat = input_manager_current_seat(input_manager);
+        struct sway_seat *seat = input_manager_current_seat();
         seat_begin_move_floating(seat, view->container, seat->last_button);
 }
 
@@ -473,7 +472,7 @@ static void handle_request_resize(struct wl_listener *listener, void *data) {
                 return;
         }
         struct wlr_xwayland_resize_event *e = data;
-        struct sway_seat *seat = input_manager_current_seat(input_manager);
+        struct sway_seat *seat = input_manager_current_seat();
         seat_begin_resize_floating(seat, view->container,
                         seat->last_button, e->edges);
 }
diff --git a/sway/input/cursor.c b/sway/input/cursor.c
index 756f2f8c..a07bc53b 100644
--- a/sway/input/cursor.c
+++ b/sway/input/cursor.c
@@ -680,7 +680,7 @@ void cursor_send_pointer_motion(struct sway_cursor *cursor,
 
 static void handle_cursor_motion(struct wl_listener *listener, void *data) {
         struct sway_cursor *cursor = wl_container_of(listener, cursor, motion);
-        wlr_idle_notify_activity(cursor->seat->input->server->idle, cursor->seat->wlr_seat);
+        wlr_idle_notify_activity(server.idle, cursor->seat->wlr_seat);
         struct wlr_event_pointer_motion *event = data;
         wlr_cursor_move(cursor->cursor, event->device,
                 event->delta_x, event->delta_y);
@@ -692,7 +692,7 @@ static void handle_cursor_motion_absolute(
                 struct wl_listener *listener, void *data) {
         struct sway_cursor *cursor =
                 wl_container_of(listener, cursor, motion_absolute);
-        wlr_idle_notify_activity(cursor->seat->input->server->idle, cursor->seat->wlr_seat);
+        wlr_idle_notify_activity(server.idle, cursor->seat->wlr_seat);
         struct wlr_event_pointer_motion_absolute *event = data;
         wlr_cursor_warp_absolute(cursor->cursor, event->device, event->x, event->y);
         cursor_send_pointer_motion(cursor, event->time_msec);
@@ -970,7 +970,7 @@ void dispatch_cursor_button(struct sway_cursor *cursor,
 
 static void handle_cursor_button(struct wl_listener *listener, void *data) {
         struct sway_cursor *cursor = wl_container_of(listener, cursor, button);
-        wlr_idle_notify_activity(cursor->seat->input->server->idle, cursor->seat->wlr_seat);
+        wlr_idle_notify_activity(server.idle, cursor->seat->wlr_seat);
         struct wlr_event_pointer_button *event = data;
         dispatch_cursor_button(cursor, event->device,
                         event->time_msec, event->button, event->state);
@@ -1019,7 +1019,7 @@ static void dispatch_cursor_axis(struct sway_cursor *cursor,
 
 static void handle_cursor_axis(struct wl_listener *listener, void *data) {
         struct sway_cursor *cursor = wl_container_of(listener, cursor, axis);
-        wlr_idle_notify_activity(cursor->seat->input->server->idle, cursor->seat->wlr_seat);
+        wlr_idle_notify_activity(server.idle, cursor->seat->wlr_seat);
         struct wlr_event_pointer_axis *event = data;
         dispatch_cursor_axis(cursor, event);
         transaction_commit_dirty();
@@ -1027,7 +1027,7 @@ static void handle_cursor_axis(struct wl_listener *listener, void *data) {
 
 static void handle_touch_down(struct wl_listener *listener, void *data) {
         struct sway_cursor *cursor = wl_container_of(listener, cursor, touch_down);
-        wlr_idle_notify_activity(cursor->seat->input->server->idle, cursor->seat->wlr_seat);
+        wlr_idle_notify_activity(server.idle, cursor->seat->wlr_seat);
         struct wlr_event_touch_down *event = data;
 
         struct sway_seat *seat = cursor->seat;
@@ -1058,7 +1058,7 @@ static void handle_touch_down(struct wl_listener *listener, void *data) {
 
 static void handle_touch_up(struct wl_listener *listener, void *data) {
         struct sway_cursor *cursor = wl_container_of(listener, cursor, touch_up);
-        wlr_idle_notify_activity(cursor->seat->input->server->idle, cursor->seat->wlr_seat);
+        wlr_idle_notify_activity(server.idle, cursor->seat->wlr_seat);
         struct wlr_event_touch_up *event = data;
         struct wlr_seat *seat = cursor->seat->wlr_seat;
         // TODO: fall back to cursor simulation if client has not bound to touch
@@ -1068,7 +1068,7 @@ static void handle_touch_up(struct wl_listener *listener, void *data) {
 static void handle_touch_motion(struct wl_listener *listener, void *data) {
         struct sway_cursor *cursor =
                 wl_container_of(listener, cursor, touch_motion);
-        wlr_idle_notify_activity(cursor->seat->input->server->idle, cursor->seat->wlr_seat);
+        wlr_idle_notify_activity(server.idle, cursor->seat->wlr_seat);
         struct wlr_event_touch_motion *event = data;
 
         struct sway_seat *seat = cursor->seat;
@@ -1132,7 +1132,7 @@ static void apply_mapping_from_region(struct wlr_input_device *device,
 
 static void handle_tool_axis(struct wl_listener *listener, void *data) {
         struct sway_cursor *cursor = wl_container_of(listener, cursor, tool_axis);
-        wlr_idle_notify_activity(cursor->seat->input->server->idle, cursor->seat->wlr_seat);
+        wlr_idle_notify_activity(server.idle, cursor->seat->wlr_seat);
         struct wlr_event_tablet_tool_axis *event = data;
         struct sway_input_device *input_device = event->device->data;
 
@@ -1156,7 +1156,7 @@ static void handle_tool_axis(struct wl_listener *listener, void *data) {
 
 static void handle_tool_tip(struct wl_listener *listener, void *data) {
         struct sway_cursor *cursor = wl_container_of(listener, cursor, tool_tip);
-        wlr_idle_notify_activity(cursor->seat->input->server->idle, cursor->seat->wlr_seat);
+        wlr_idle_notify_activity(server.idle, cursor->seat->wlr_seat);
         struct wlr_event_tablet_tool_tip *event = data;
         dispatch_cursor_button(cursor, event->device, event->time_msec,
                         BTN_LEFT, event->state == WLR_TABLET_TOOL_TIP_DOWN ?
@@ -1166,7 +1166,7 @@ static void handle_tool_tip(struct wl_listener *listener, void *data) {
 
 static void handle_tool_button(struct wl_listener *listener, void *data) {
         struct sway_cursor *cursor = wl_container_of(listener, cursor, tool_button);
-        wlr_idle_notify_activity(cursor->seat->input->server->idle, cursor->seat->wlr_seat);
+        wlr_idle_notify_activity(server.idle, cursor->seat->wlr_seat);
         struct wlr_event_tablet_tool_button *event = data;
         // TODO: the user may want to configure which tool buttons are mapped to
         // which simulated pointer buttons
diff --git a/sway/input/input-manager.c b/sway/input/input-manager.c
index 671f9a47..5be4143f 100644
--- a/sway/input/input-manager.c
+++ b/sway/input/input-manager.c
@@ -17,32 +17,28 @@
 #include "list.h"
 #include "log.h"
 
-static const char *default_seat = "seat0";
-
-// TODO make me not global
-struct sway_input_manager *input_manager;
+#define DEFAULT_SEAT "seat0"
 
 struct input_config *current_input_config = NULL;
 struct seat_config *current_seat_config = NULL;
 
-struct sway_seat *input_manager_current_seat(struct sway_input_manager *input) {
+struct sway_seat *input_manager_current_seat(void) {
         struct sway_seat *seat = config->handler_context.seat;
         if (!seat) {
-                seat = input_manager_get_default_seat(input_manager);
+                seat = input_manager_get_default_seat();
         }
         return seat;
 }
 
-struct sway_seat *input_manager_get_seat(
-                struct sway_input_manager *input, const char *seat_name) {
+struct sway_seat *input_manager_get_seat(const char *seat_name) {
         struct sway_seat *seat = NULL;
-        wl_list_for_each(seat, &input->seats, link) {
+        wl_list_for_each(seat, &server.input->seats, link) {
                 if (strcmp(seat->wlr_seat->name, seat_name) == 0) {
                         return seat;
                 }
         }
 
-        return seat_create(input, seat_name);
+        return seat_create(seat_name);
 }
 
 char *input_device_get_identifier(struct wlr_input_device *device) {
@@ -72,9 +68,9 @@ char *input_device_get_identifier(struct wlr_input_device *device) {
 }
 
 static struct sway_input_device *input_sway_device_from_wlr(
-                struct sway_input_manager *input, struct wlr_input_device *device) {
+                struct wlr_input_device *device) {
         struct sway_input_device *input_device = NULL;
-        wl_list_for_each(input_device, &input->devices, link) {
+        wl_list_for_each(input_device, &server.input->devices, link) {
                 if (input_device->wlr_device == device) {
                         return input_device;
                 }
@@ -82,9 +78,9 @@ static struct sway_input_device *input_sway_device_from_wlr(
         return NULL;
 }
 
-static bool input_has_seat_configuration(struct sway_input_manager *input) {
+static bool input_has_seat_configuration(void) {
         struct sway_seat *seat = NULL;
-        wl_list_for_each(seat, &input->seats, link) {
+        wl_list_for_each(seat, &server.input->seats, link) {
                 struct seat_config *seat_config = seat_get_config(seat);
                 if (seat_config) {
                         return true;
@@ -244,8 +240,7 @@ static void input_manager_libinput_config_pointer(
 static void handle_device_destroy(struct wl_listener *listener, void *data) {
         struct wlr_input_device *device = data;
 
-        struct sway_input_device *input_device =
-                input_sway_device_from_wlr(input_manager, device);
+        struct sway_input_device *input_device = input_sway_device_from_wlr(device);
 
         if (!sway_assert(input_device, "could not find sway device")) {
                 return;
@@ -255,7 +250,7 @@ static void handle_device_destroy(struct wl_listener *listener, void *data) {
                 input_device->identifier);
 
         struct sway_seat *seat = NULL;
-        wl_list_for_each(seat, &input_manager->seats, link) {
+        wl_list_for_each(seat, &server.input->seats, link) {
                 seat_remove_device(seat, input_device);
         }
 
@@ -297,9 +292,9 @@ static void handle_new_input(struct wl_listener *listener, void *data) {
         input_device->device_destroy.notify = handle_device_destroy;
 
         struct sway_seat *seat = NULL;
-        if (!input_has_seat_configuration(input)) {
+        if (!input_has_seat_configuration()) {
                 wlr_log(WLR_DEBUG, "no seat configuration, using default seat");
-                seat = input_manager_get_seat(input, default_seat);
+                seat = input_manager_get_seat(DEFAULT_SEAT);
                 seat_add_device(seat, input_device);
                 return;
         }
@@ -364,7 +359,7 @@ void handle_virtual_keyboard(struct wl_listener *listener, void *data) {
         struct wlr_virtual_keyboard_v1 *keyboard = data;
         struct wlr_input_device *device = &keyboard->input_device;
 
-        struct sway_seat *seat = input_manager_get_default_seat(input_manager);
+        struct sway_seat *seat = input_manager_get_default_seat();
 
         // TODO: The user might want this on a different seat
         struct sway_input_device *input_device =
@@ -387,21 +382,16 @@ void handle_virtual_keyboard(struct wl_listener *listener, void *data) {
         seat_add_device(seat, input_device);
 }
 
-struct sway_input_manager *input_manager_create(
-                struct sway_server *server) {
+struct sway_input_manager *input_manager_create(struct sway_server *server) {
         struct sway_input_manager *input =
                 calloc(1, sizeof(struct sway_input_manager));
         if (!input) {
                 return NULL;
         }
-        input->server = server;
 
         wl_list_init(&input->devices);
         wl_list_init(&input->seats);
 
-        // create the default seat
-        input_manager_get_seat(input, default_seat);
-
         input->new_input.notify = handle_new_input;
         wl_signal_add(&server->backend->events.new_input, &input->new_input);
 
@@ -422,10 +412,9 @@ struct sway_input_manager *input_manager_create(
         return input;
 }
 
-bool input_manager_has_focus(struct sway_input_manager *input,
-                struct sway_node *node) {
+bool input_manager_has_focus(struct sway_node *node) {
         struct sway_seat *seat = NULL;
-        wl_list_for_each(seat, &input->seats, link) {
+        wl_list_for_each(seat, &server.input->seats, link) {
                 if (seat_get_focus(seat) == node) {
                         return true;
                 }
@@ -434,19 +423,17 @@ bool input_manager_has_focus(struct sway_input_manager *input,
         return false;
 }
 
-void input_manager_set_focus(struct sway_input_manager *input,
-                struct sway_node *node) {
+void input_manager_set_focus(struct sway_node *node) {
         struct sway_seat *seat;
-        wl_list_for_each(seat, &input->seats, link) {
+        wl_list_for_each(seat, &server.input->seats, link) {
                 seat_set_focus(seat, node);
         }
 }
 
-void input_manager_apply_input_config(struct sway_input_manager *input,
-                struct input_config *input_config) {
+void input_manager_apply_input_config(struct input_config *input_config) {
         struct sway_input_device *input_device = NULL;
         bool wildcard = strcmp(input_config->identifier, "*") == 0;
-        wl_list_for_each(input_device, &input->devices, link) {
+        wl_list_for_each(input_device, &server.input->devices, link) {
                 if (strcmp(input_device->identifier, input_config->identifier) == 0
                                 || wildcard) {
                         if (input_device->wlr_device->type == WLR_INPUT_DEVICE_POINTER ||
@@ -459,18 +446,17 @@ void input_manager_apply_input_config(struct sway_input_manager *input,
                         }
 
                         struct sway_seat *seat = NULL;
-                        wl_list_for_each(seat, &input->seats, link) {
+                        wl_list_for_each(seat, &server.input->seats, link) {
                                 seat_configure_device(seat, input_device);
                         }
                 }
         }
 }
 
-void input_manager_apply_seat_config(struct sway_input_manager *input,
-                struct seat_config *seat_config) {
+void input_manager_apply_seat_config(struct seat_config *seat_config) {
         wlr_log(WLR_DEBUG, "applying new seat config for seat %s",
                 seat_config->name);
-        struct sway_seat *seat = input_manager_get_seat(input, seat_config->name);
+        struct sway_seat *seat = input_manager_get_seat(seat_config->name);
         if (!seat) {
                 return;
         }
@@ -480,10 +466,10 @@ void input_manager_apply_seat_config(struct sway_input_manager *input,
         // for every device, try to add it to a seat and if no seat has it
         // attached, add it to the fallback seats.
         struct sway_input_device *input_device = NULL;
-        wl_list_for_each(input_device, &input->devices, link) {
+        wl_list_for_each(input_device, &server.input->devices, link) {
                 list_t *seat_list = create_list();
                 struct sway_seat *seat = NULL;
-                wl_list_for_each(seat, &input->seats, link) {
+                wl_list_for_each(seat, &server.input->seats, link) {
                         struct seat_config *seat_config = seat_get_config(seat);
                         if (!seat_config) {
                                 continue;
@@ -496,7 +482,7 @@ void input_manager_apply_seat_config(struct sway_input_manager *input,
                 }
 
                 if (seat_list->length) {
-                        wl_list_for_each(seat, &input->seats, link) {
+                        wl_list_for_each(seat, &server.input->seats, link) {
                                 bool attached = false;
                                 for (int i = 0; i < seat_list->length; ++i) {
                                         if (seat == seat_list->items[i]) {
@@ -511,7 +497,7 @@ void input_manager_apply_seat_config(struct sway_input_manager *input,
                                 }
                         }
                 } else {
-                        wl_list_for_each(seat, &input->seats, link) {
+                        wl_list_for_each(seat, &server.input->seats, link) {
                                 struct seat_config *seat_config = seat_get_config(seat);
                                 if (seat_config && seat_config->fallback == 1) {
                                         seat_add_device(seat, input_device);
@@ -524,18 +510,17 @@ void input_manager_apply_seat_config(struct sway_input_manager *input,
         }
 }
 
-void input_manager_configure_xcursor(struct sway_input_manager *input) {
+void input_manager_configure_xcursor(void) {
         struct sway_seat *seat = NULL;
-        wl_list_for_each(seat, &input->seats, link) {
+        wl_list_for_each(seat, &server.input->seats, link) {
                 seat_configure_xcursor(seat);
         }
 }
 
-struct sway_seat *input_manager_get_default_seat(
-                struct sway_input_manager *input) {
+struct sway_seat *input_manager_get_default_seat(void) {
         struct sway_seat *seat = NULL;
-        wl_list_for_each(seat, &input->seats, link) {
-                if (strcmp(seat->wlr_seat->name, "seat0") == 0) {
+        wl_list_for_each(seat, &server.input->seats, link) {
+                if (strcmp(seat->wlr_seat->name, DEFAULT_SEAT) == 0) {
                         return seat;
                 }
         }
diff --git a/sway/input/keyboard.c b/sway/input/keyboard.c
index 4427dabe..5c1e7ae6 100644
--- a/sway/input/keyboard.c
+++ b/sway/input/keyboard.c
@@ -211,7 +211,7 @@ static void handle_keyboard_key(struct wl_listener *listener, void *data) {
         struct wlr_input_device *wlr_device =
                 keyboard->seat_device->input_device->wlr_device;
         char *device_identifier = input_device_get_identifier(wlr_device);
-        wlr_idle_notify_activity(seat->input->server->idle, wlr_seat);
+        wlr_idle_notify_activity(server.idle, wlr_seat);
         struct wlr_event_keyboard_key *event = data;
         bool input_inhibited = seat->exclusive_client != NULL;
 
diff --git a/sway/input/seat.c b/sway/input/seat.c
index d7733855..330b7bbe 100644
--- a/sway/input/seat.c
+++ b/sway/input/seat.c
@@ -95,8 +95,7 @@ static void seat_send_focus(struct sway_node *node, struct sway_seat *seat) {
         if (view && seat_is_input_allowed(seat, view->surface)) {
 #ifdef HAVE_XWAYLAND
                 if (view->type == SWAY_VIEW_XWAYLAND) {
-                        struct wlr_xwayland *xwayland =
-                                seat->input->server->xwayland.wlr_xwayland;
+                        struct wlr_xwayland *xwayland = server.xwayland.wlr_xwayland;
                         wlr_xwayland_set_seat(xwayland, seat->wlr_seat);
                 }
 #endif
@@ -328,14 +327,13 @@ static void collect_focus_container_iter(struct sway_container *container,
         collect_focus_iter(&container->node, data);
 }
 
-struct sway_seat *seat_create(struct sway_input_manager *input,
-                const char *seat_name) {
+struct sway_seat *seat_create(const char *seat_name) {
         struct sway_seat *seat = calloc(1, sizeof(struct sway_seat));
         if (!seat) {
                 return NULL;
         }
 
-        seat->wlr_seat = wlr_seat_create(input->server->wl_display, seat_name);
+        seat->wlr_seat = wlr_seat_create(server.wl_display, seat_name);
         if (!sway_assert(seat->wlr_seat, "could not allocate seat")) {
                 free(seat);
                 return NULL;
@@ -361,10 +359,9 @@ struct sway_seat *seat_create(struct sway_input_manager *input,
         wl_signal_add(&seat->wlr_seat->events.new_drag_icon, &seat->new_drag_icon);
         seat->new_drag_icon.notify = handle_new_drag_icon;
 
-        seat->input = input;
         wl_list_init(&seat->devices);
 
-        wl_list_insert(&input->seats, &seat->link);
+        wl_list_insert(&server.input->seats, &seat->link);
 
         return seat;
 }
diff --git a/sway/ipc-json.c b/sway/ipc-json.c
index 54d611f2..a29647ed 100644
--- a/sway/ipc-json.c
+++ b/sway/ipc-json.c
@@ -340,7 +340,7 @@ static void focus_inactive_children_iterator(struct sway_node *node,
 }
 
 json_object *ipc_json_describe_node(struct sway_node *node) {
-        struct sway_seat *seat = input_manager_get_default_seat(input_manager);
+        struct sway_seat *seat = input_manager_get_default_seat();
         bool focused = seat_get_focus(seat) == node;
 
         json_object *object = json_object_new_object();
diff --git a/sway/ipc-server.c b/sway/ipc-server.c
index 63c95503..619d2aef 100644
--- a/sway/ipc-server.c
+++ b/sway/ipc-server.c
@@ -547,7 +547,7 @@ static void ipc_get_workspaces_callback(struct sway_workspace *workspace,
         json_object *workspace_json = ipc_json_describe_node(&workspace->node);
         // override the default focused indicator because
         // it's set differently for the get_workspaces reply
-        struct sway_seat *seat = input_manager_get_default_seat(input_manager);
+        struct sway_seat *seat = input_manager_get_default_seat();
         struct sway_workspace *focused_ws = seat_get_focused_workspace(seat);
         bool focused = workspace == focused_ws;
         json_object_object_del(workspace_json, "focused");
@@ -702,7 +702,7 @@ void ipc_client_handle_command(struct ipc_client *client) {
         {
                 json_object *inputs = json_object_new_array();
                 struct sway_input_device *device = NULL;
-                wl_list_for_each(device, &input_manager->devices, link) {
+                wl_list_for_each(device, &server.input->devices, link) {
                         json_object_array_add(inputs, ipc_json_describe_input(device));
                 }
                 const char *json_string = json_object_to_json_string(inputs);
@@ -716,7 +716,7 @@ void ipc_client_handle_command(struct ipc_client *client) {
         {
                 json_object *seats = json_object_new_array();
                 struct sway_seat *seat = NULL;
-                wl_list_for_each(seat, &input_manager->seats, link) {
+                wl_list_for_each(seat, &server.input->seats, link) {
                         json_object_array_add(seats, ipc_json_describe_seat(seat));
                 }
                 const char *json_string = json_object_to_json_string(seats);
diff --git a/sway/server.c b/sway/server.c
index 1fd7b7fa..23d42028 100644
--- a/sway/server.c
+++ b/sway/server.c
@@ -153,7 +153,9 @@ bool server_init(struct sway_server *server) {
         server->dirty_nodes = create_list();
         server->transactions = create_list();
 
-        input_manager = input_manager_create(server);
+        server->input = input_manager_create(server);
+        input_manager_get_default_seat(); // create seat0
+
         return true;
 }
 
diff --git a/sway/tree/container.c b/sway/tree/container.c
index edab7a17..b41e8dd4 100644
--- a/sway/tree/container.c
+++ b/sway/tree/container.c
@@ -200,7 +200,7 @@ static struct sway_container *container_at_tabbed(struct sway_node *parent,
         if (ly < box.y || ly > box.y + box.height) {
                 return NULL;
         }
-        struct sway_seat *seat = input_manager_current_seat(input_manager);
+        struct sway_seat *seat = input_manager_current_seat();
         list_t *children = node_get_children(parent);
         if (!children->length) {
                 return NULL;
@@ -234,7 +234,7 @@ static struct sway_container *container_at_stacked(struct sway_node *parent,
         if (ly < box.y || ly > box.y + box.height) {
                 return NULL;
         }
-        struct sway_seat *seat = input_manager_current_seat(input_manager);
+        struct sway_seat *seat = input_manager_current_seat();
         list_t *children = node_get_children(parent);
 
         // Title bars
@@ -358,7 +358,7 @@ struct sway_container *container_at(struct sway_workspace *workspace,
                 struct wlr_surface **surface, double *sx, double *sy) {
         struct sway_container *c;
 
-        struct sway_seat *seat = input_manager_current_seat(input_manager);
+        struct sway_seat *seat = input_manager_current_seat();
         struct sway_container *focus = seat_get_focused_container(seat);
         bool is_floating = focus && container_is_floating_or_child(focus);
         // Focused view's popups
@@ -651,7 +651,7 @@ void container_set_floating(struct sway_container *container, bool enable) {
                 return;
         }
 
-        struct sway_seat *seat = input_manager_current_seat(input_manager);
+        struct sway_seat *seat = input_manager_current_seat();
         struct sway_workspace *workspace = container->workspace;
 
         if (enable) {
@@ -843,7 +843,7 @@ bool container_has_urgent_child(struct sway_container *container) {
 
 void container_end_mouse_operation(struct sway_container *container) {
         struct sway_seat *seat;
-        wl_list_for_each(seat, &input_manager->seats, link) {
+        wl_list_for_each(seat, &server.input->seats, link) {
                 if (seat->op_container == container) {
                         seat->op_target_node = NULL; // ensure tiling move doesn't apply
                         seat_end_mouse_operation(seat);
@@ -890,7 +890,7 @@ void container_set_fullscreen(struct sway_container *container, bool enable) {
 
                 struct sway_seat *seat;
                 struct sway_workspace *focus_ws;
-                wl_list_for_each(seat, &input_manager->seats, link) {
+                wl_list_for_each(seat, &server.input->seats, link) {
                         focus_ws = seat_get_focused_workspace(seat);
                         if (focus_ws) {
                                 if (focus_ws == workspace) {
@@ -1033,7 +1033,7 @@ void container_add_gaps(struct sway_container *c) {
                 struct sway_view *view = c->view;
                 if (!view) {
                         struct sway_seat *seat =
-                                input_manager_get_default_seat(input_manager);
+                                input_manager_get_default_seat();
                         struct sway_container *focus =
                                 seat_get_focus_inactive_view(seat, &c->node);
                         view = focus ? focus->view : NULL;
@@ -1187,7 +1187,7 @@ void container_replace(struct sway_container *container,
 
 struct sway_container *container_split(struct sway_container *child,
                 enum sway_container_layout layout) {
-        struct sway_seat *seat = input_manager_get_default_seat(input_manager);
+        struct sway_seat *seat = input_manager_get_default_seat();
         bool set_focus = (seat_get_focus(seat) == &child->node);
 
         struct sway_container *cont = container_create(NULL);
diff --git a/sway/tree/output.c b/sway/tree/output.c
index c3176325..524a64ab 100644
--- a/sway/tree/output.c
+++ b/sway/tree/output.c
@@ -83,7 +83,7 @@ void output_enable(struct sway_output *output, struct output_config *oc) {
                 struct sway_workspace *ws = workspace_create(output, ws_name);
                 // Set each seat's focus if not already set
                 struct sway_seat *seat = NULL;
-                wl_list_for_each(seat, &input_manager->seats, link) {
+                wl_list_for_each(seat, &server.input->seats, link) {
                         if (!seat->has_focus) {
                                 seat_set_focus_workspace(seat, ws);
                         }
@@ -97,7 +97,7 @@ void output_enable(struct sway_output *output, struct output_config *oc) {
         }
         wl_signal_init(&output->events.destroy);
 
-        input_manager_configure_xcursor(input_manager);
+        input_manager_configure_xcursor();
 
         wl_signal_add(&wlr_output->events.mode, &output->mode);
         wl_signal_add(&wlr_output->events.transform, &output->transform);
diff --git a/sway/tree/root.c b/sway/tree/root.c
index 6748e9c9..e5eb8f2a 100644
--- a/sway/tree/root.c
+++ b/sway/tree/root.c
@@ -67,7 +67,7 @@ void root_scratchpad_add_container(struct sway_container *con) {
         container_set_floating(con, true);
         container_detach(con);
 
-        struct sway_seat *seat = input_manager_current_seat(input_manager);
+        struct sway_seat *seat = input_manager_current_seat();
         if (parent) {
                 arrange_container(parent);
                 seat_set_focus(seat, seat_get_focus_inactive(seat, &parent->node));
@@ -89,7 +89,7 @@ void root_scratchpad_remove_container(struct sway_container *con) {
 }
 
 void root_scratchpad_show(struct sway_container *con) {
-        struct sway_seat *seat = input_manager_current_seat(input_manager);
+        struct sway_seat *seat = input_manager_current_seat();
         struct sway_workspace *ws = seat_get_focused_workspace(seat);
 
     // If the current con or any of its parents are in fullscreen mode, we
@@ -127,7 +127,7 @@ void root_scratchpad_show(struct sway_container *con) {
 }
 
 void root_scratchpad_hide(struct sway_container *con) {
-        struct sway_seat *seat = input_manager_current_seat(input_manager);
+        struct sway_seat *seat = input_manager_current_seat();
         struct sway_node *focus = seat_get_focus(seat);
         struct sway_workspace *ws = con->workspace;
 
@@ -210,7 +210,7 @@ void root_record_workspace_pid(pid_t pid) {
                 wl_list_init(&pid_workspaces);
         }
 
-        struct sway_seat *seat = input_manager_current_seat(input_manager);
+        struct sway_seat *seat = input_manager_current_seat();
         struct sway_workspace *ws = seat_get_focused_workspace(seat);
         if (!ws) {
                 wlr_log(WLR_DEBUG, "Bailing out, no workspace");
diff --git a/sway/tree/view.c b/sway/tree/view.c
index 43a9d510..85afbb87 100644
--- a/sway/tree/view.c
+++ b/sway/tree/view.c
@@ -305,7 +305,7 @@ void view_request_activate(struct sway_view *view) {
         if (!ws) { // hidden scratchpad container
                 return;
         }
-        struct sway_seat *seat = input_manager_current_seat(input_manager);
+        struct sway_seat *seat = input_manager_current_seat();
 
         switch (config->focus_on_window_activation) {
         case FOWA_SMART:
@@ -443,7 +443,7 @@ void view_execute_criteria(struct sway_view *view) {
 }
 
 static struct sway_workspace *select_workspace(struct sway_view *view) {
-        struct sway_seat *seat = input_manager_current_seat(input_manager);
+        struct sway_seat *seat = input_manager_current_seat();
 
         // Check if there's any `assign` criteria for the view
         list_t *criterias = criteria_for_view(view,
@@ -517,7 +517,7 @@ static struct sway_workspace *select_workspace(struct sway_view *view) {
 }
 
 static bool should_focus(struct sway_view *view) {
-        struct sway_seat *seat = input_manager_current_seat(input_manager);
+        struct sway_seat *seat = input_manager_current_seat();
         struct sway_container *prev_con = seat_get_focused_container(seat);
         struct sway_workspace *prev_ws = seat_get_focused_workspace(seat);
         struct sway_workspace *map_ws = view->container->workspace;
@@ -551,7 +551,7 @@ void view_map(struct sway_view *view, struct wlr_surface *wlr_surface,
         }
         view->surface = wlr_surface;
 
-        struct sway_seat *seat = input_manager_current_seat(input_manager);
+        struct sway_seat *seat = input_manager_current_seat();
         struct sway_workspace *ws = select_workspace(view);
         struct sway_node *node = seat_get_focus_inactive(seat, &ws->node);
         struct sway_container *target_sibling = node->type == N_CONTAINER ?
@@ -616,7 +616,7 @@ void view_map(struct sway_view *view, struct wlr_surface *wlr_surface,
         }
 
         if (should_focus(view)) {
-                input_manager_set_focus(input_manager, &view->container->node);
+                input_manager_set_focus(&view->container->node);
         }
 }
 
@@ -645,7 +645,7 @@ void view_unmap(struct sway_view *view) {
         }
 
         struct sway_seat *seat;
-        wl_list_for_each(seat, &input_manager->seats, link) {
+        wl_list_for_each(seat, &server.input->seats, link) {
                 if (config->mouse_warping == WARP_CONTAINER) {
                         struct sway_node *node = seat_get_focus(seat);
                         if (node && node->type == N_CONTAINER) {
@@ -1106,7 +1106,7 @@ bool view_is_visible(struct sway_view *view) {
                 return false;
         }
         // Check view isn't in a tabbed or stacked container on an inactive tab
-        struct sway_seat *seat = input_manager_current_seat(input_manager);
+        struct sway_seat *seat = input_manager_current_seat();
         struct sway_container *con = view->container;
         while (con) {
                 enum sway_container_layout layout = container_parent_layout(con);
@@ -1138,7 +1138,7 @@ void view_set_urgent(struct sway_view *view, bool enable) {
                 return;
         }
         if (enable) {
-                struct sway_seat *seat = input_manager_current_seat(input_manager);
+                struct sway_seat *seat = input_manager_current_seat();
                 if (seat_get_focused_container(seat) == view->container) {
                         return;
                 }
diff --git a/sway/tree/workspace.c b/sway/tree/workspace.c
index 2a00824d..e840219f 100644
--- a/sway/tree/workspace.c
+++ b/sway/tree/workspace.c
@@ -40,7 +40,7 @@ struct sway_output *workspace_get_initial_output(const char *name) {
                 }
         }
         // Otherwise put it on the focused output
-        struct sway_seat *seat = input_manager_current_seat(input_manager);
+        struct sway_seat *seat = input_manager_current_seat();
         struct sway_workspace *focus = seat_get_focused_workspace(seat);
         return focus->output;
 }
@@ -287,7 +287,7 @@ static bool _workspace_by_name(struct sway_workspace *ws, void *data) {
 }
 
 struct sway_workspace *workspace_by_name(const char *name) {
-        struct sway_seat *seat = input_manager_current_seat(input_manager);
+        struct sway_seat *seat = input_manager_current_seat();
         struct sway_workspace *current = seat_get_focused_workspace(seat);
 
         if (strcmp(name, "prev") == 0) {
@@ -316,7 +316,7 @@ struct sway_workspace *workspace_by_name(const char *name) {
  */
 static struct sway_workspace *workspace_output_prev_next_impl(
                 struct sway_output *output, int dir) {
-        struct sway_seat *seat = input_manager_current_seat(input_manager);
+        struct sway_seat *seat = input_manager_current_seat();
         struct sway_workspace *workspace = seat_get_focused_workspace(seat);
 
         int index = list_find(output->workspaces, workspace);
@@ -368,7 +368,7 @@ struct sway_workspace *workspace_prev(struct sway_workspace *current) {
 
 bool workspace_switch(struct sway_workspace *workspace,
                 bool no_auto_back_and_forth) {
-        struct sway_seat *seat = input_manager_current_seat(input_manager);
+        struct sway_seat *seat = input_manager_current_seat();
         struct sway_workspace *active_ws = seat_get_focused_workspace(seat);
 
         if (!no_auto_back_and_forth && config->auto_back_and_forth
@@ -619,7 +619,7 @@ void workspace_add_gaps(struct sway_workspace *ws) {
                 return;
         }
         if (config->smart_gaps) {
-                struct sway_seat *seat = input_manager_get_default_seat(input_manager);
+                struct sway_seat *seat = input_manager_get_default_seat();
                 struct sway_container *focus =
                         seat_get_focus_inactive_tiling(seat, ws);
                 if (focus && !focus->view) {