backend/wayland: expose remote objects

Expose the remote wl_display, wl_surface and wl_seat used by the Wayland
backend.

This allows compositors to customize the Wayland backend and to have
more freedom. For instance a compositor might want to handle clipboard
and drag-and-drop from the remote Wayland compositor. Another compositor
might want to setup pointer constraints.

1 files changed, 15 insertions, 0 deletions

diff --git a/include/wlr/backend/wayland.h b/include/wlr/backend/wayland.h
index cd8e73fb..e424e37a 100644
--- a/include/wlr/backend/wayland.h
+++ b/include/wlr/backend/wayland.h
@@ -19,6 +19,11 @@ struct wlr_backend *wlr_wl_backend_create(struct wl_display *display,
 		const char *remote, wlr_renderer_create_func_t create_renderer_func);
 
 /**
+ * Returns the remote wl_display used by the Wayland backend.
+ */
+struct wl_display *wlr_wl_backend_get_remote_display(struct wlr_backend *backend);
+
+/**
  * Adds a new output to this backend. You may remove outputs by destroying them.
  * Note that if called before initializing the backend, this will return NULL
  * and your outputs will be created during initialization (and given to you via
@@ -46,4 +51,14 @@ bool wlr_output_is_wl(struct wlr_output *output);
  */
 void wlr_wl_output_set_title(struct wlr_output *output, const char *title);
 
+/**
+ * Returns the remote wl_surface used by the Wayland output.
+ */
+struct wl_surface *wlr_wl_output_get_surface(struct wlr_output *output);
+
+/**
+ * Returns the remote wl_seat for a Wayland input device.
+ */
+struct wl_seat *wlr_wl_input_device_get_seat(struct wlr_input_device *dev);
+
 #endif