[gnome-control-center] common: Add generic API to map GdkDevices to GsdDevices

[Carlos Garnacho <carlosg src gnome org>]

commit 3db9203dd28eaccb68e315daf46e1625d7aaa51f
Author: Carlos Garnacho <carlosg gnome org>
Date:   Mon Jun 6 14:06:57 2016 +0200

    common: Add generic API to map GdkDevices to GsdDevices
    
    Now that we have tablet support in wayland, we can kind of honor
    that in the places we're interested. The inverse (looking up the
    GdkDevices that a single GsdDevice represents) is unneeded.

 panels/common/gsd-device-manager.c |   16 ++++++++++++++++
 panels/common/gsd-device-manager.h |    8 ++++----
 2 files changed, 20 insertions(+), 4 deletions(-)
---
diff --git a/panels/common/gsd-device-manager.c b/panels/common/gsd-device-manager.c
index 1737bf3..541f294 100644
--- a/panels/common/gsd-device-manager.c
+++ b/panels/common/gsd-device-manager.c
@@ -415,3 +415,19 @@ gsd_device_get_dimensions (GsdDevice *device,
 
        return priv->width > 0 && priv->height > 0;
 }
+
+GsdDevice *
+gsd_device_manager_lookup_gdk_device (GsdDeviceManager *manager,
+                                     GdkDevice        *gdk_device)
+{
+       GsdDeviceManagerClass *klass;
+
+       g_return_val_if_fail (GSD_IS_DEVICE_MANAGER (manager), NULL);
+       g_return_val_if_fail (GDK_IS_DEVICE (gdk_device), NULL);
+
+       klass = GSD_DEVICE_MANAGER_GET_CLASS (manager);
+       if (!klass->lookup_device)
+               return NULL;
+
+       return klass->lookup_device (manager, gdk_device);
+}
diff --git a/panels/common/gsd-device-manager.h b/panels/common/gsd-device-manager.h
index baf46a8..f0f5df7 100644
--- a/panels/common/gsd-device-manager.h
+++ b/panels/common/gsd-device-manager.h
@@ -20,6 +20,7 @@
 #ifndef __GSD_DEVICE_MANAGER_H__
 #define __GSD_DEVICE_MANAGER_H__
 
+#include <gdk/gdk.h>
 #include <glib-object.h>
 #include <gio/gio.h>
 
@@ -78,6 +79,9 @@ struct _GsdDeviceManagerClass
                                 GsdDevice        *device);
        void (* device_changed) (GsdDeviceManager *manager,
                                 GsdDevice        *device);
+
+       GsdDevice * (* lookup_device) (GsdDeviceManager *manager,
+                                      GdkDevice        *gdk_device);
 };
 
 GType             gsd_device_get_type                (void) G_GNUC_CONST;
@@ -98,12 +102,8 @@ gboolean       gsd_device_get_dimensions  (GsdDevice  *device,
                                               guint      *width,
                                               guint      *height);
 
-#ifdef GDK_WINDOWING_X11
-GdkDevice **      gsd_device_get_gdk_devices (GsdDevice *device,
-                                              guint     *n_gdk_devices);
 GsdDevice *       gsd_device_manager_lookup_gdk_device (GsdDeviceManager *manager,
                                                         GdkDevice        *gdk_device);
-#endif
 
 G_END_DECLS