3 files changed, 41 insertions, 1 deletions
diff --git a/include/sway/layers.h b/include/sway/layers.h
new file mode 100644
index 00000000..22054be1
--- /dev/null
+++ b/include/sway/layers.h
@@ -0,0 +1,27 @@
+#ifndef _SWAY_LAYERS_H
+#define _SWAY_LAYERS_H
+#include <stdbool.h>
+#include <wlr/types/wlr_box.h>
+#include <wlr/types/wlr_surface.h>
+#include <wlr/types/wlr_layer_shell.h>
+
+struct sway_layer_surface {
+	struct wlr_layer_surface *layer_surface;
+	struct wl_list link;
+
+	struct wl_listener destroy;
+	struct wl_listener map;
+	struct wl_listener unmap;
+	struct wl_listener surface_commit;
+	struct wl_listener output_destroy;
+	struct wl_listener output_mode;
+	struct wl_listener output_transform;
+
+	bool configured;
+	struct wlr_box geo;
+};
+
+struct sway_output;
+void arrange_layers(struct sway_output *output);
+
+#endif
diff --git a/include/sway/output.h b/include/sway/output.h
index 95d64705..f899230f 100644
--- a/include/sway/output.h
+++ b/include/sway/output.h
@@ -1,7 +1,9 @@
 #ifndef _SWAY_OUTPUT_H
 #define _SWAY_OUTPUT_H
 #include <time.h>
+#include <unistd.h>
 #include <wayland-server.h>
+#include <wlr/types/wlr_box.h>
 #include <wlr/types/wlr_output.h>
 
 struct sway_server;
@@ -13,8 +15,14 @@ struct sway_output {
 	struct sway_server *server;
 	struct timespec last_frame;
 
+	struct wl_list layers[4]; // sway_layer_surface::link
+	struct wlr_box usable_area;
+
 	struct wl_listener frame;
-	struct wl_listener output_destroy;
+	struct wl_listener destroy;
+	struct wl_listener mode;
+
+	pid_t bg_pid;
 };
 
 #endif
diff --git a/include/sway/server.h b/include/sway/server.h
index eb7fa2ff..25eb64fe 100644
--- a/include/sway/server.h
+++ b/include/sway/server.h
@@ -6,6 +6,7 @@
 #include <wlr/backend/session.h>
 #include <wlr/types/wlr_compositor.h>
 #include <wlr/types/wlr_data_device.h>
+#include <wlr/types/wlr_layer_shell.h>
 #include <wlr/types/wlr_xdg_shell_v6.h>
 #include <wlr/render/wlr_renderer.h>
 // TODO WLR: make Xwayland optional
@@ -27,6 +28,9 @@ struct sway_server {
 	struct wl_listener new_output;
 	struct wl_listener output_frame;
 
+	struct wlr_layer_shell *layer_shell;
+	struct wl_listener layer_shell_surface;
+
 	struct wlr_xdg_shell_v6 *xdg_shell_v6;
 	struct wl_listener xdg_shell_v6_surface;
 
@@ -46,6 +50,7 @@ void server_run(struct sway_server *server);
 
 void handle_new_output(struct wl_listener *listener, void *data);
 
+void handle_layer_shell_surface(struct wl_listener *listener, void *data);
 void handle_xdg_shell_v6_surface(struct wl_listener *listener, void *data);
 void handle_xwayland_surface(struct wl_listener *listener, void *data);
 void handle_wl_shell_surface(struct wl_listener *listener, void *data);