Merge pull request #180 from heuer/backend_multi

Added is_multi property to Backend

wlroots/backend.py

@@ -98,6 +98,16 @@ def get_session(self) -> Session:
     def is_headless(self) -> bool:
         return lib.wlr_backend_is_headless(self._ptr)
 
+    @property
+    def is_multi(self) -> bool:
+        """
+        Returns if this backend represents a multi-backend.
+
+        Multi-backends wrap an arbitrary number of backends and aggregate
+        their new_output/new_input signals.
+        """
+        return lib.wlr_backend_is_multi(self._ptr)
+
 
 class Session:
     def __init__(self, backend: Backend) -> None:

wlroots/ffi_build.py

@@ -121,12 +121,17 @@ def has_xwayland() -> bool:
 struct wlr_session *wlr_backend_get_session(struct wlr_backend *backend);
 """
 
-# backend/libinput.h
+# wlr/backend/libinput.h
 CDEF += """
 struct libinput_device *wlr_libinput_get_device_handle(struct wlr_input_device *dev);
 bool wlr_input_device_is_libinput(struct wlr_input_device *device);
 """
 
+# wlr/backend/multi.h
+CDEF += """
+bool wlr_backend_is_multi(struct wlr_backend *backend);
+"""
+
 # backend/session.h
 CDEF += """
 bool wlr_session_change_vt(struct wlr_session *session, unsigned vt);
@@ -2963,6 +2968,7 @@ def has_xwayland() -> bool:
 #include <wlr/backend.h>
 #include <wlr/backend/headless.h>
 #include <wlr/backend/libinput.h>
+#include <wlr/backend/multi.h>
 #include <wlr/interfaces/wlr_keyboard.h>
 #include <wlr/render/allocator.h>
 #include <wlr/render/drm_format_set.h>