[gnome-control-center/wip/garnacho/wayland-tablet: 10/31] common: Implement lookup vfunc in GsdDeviceManagerUdev

[Carlos Garnacho <carlosg src gnome org>]

commit 3f9efcf5f05cb6fe0f2abdf5a51838e40143270c
Author: Carlos Garnacho <carlosg gnome org>
Date:   Mon Jun 6 14:29:16 2016 +0200

    common: Implement lookup vfunc in GsdDeviceManagerUdev

 panels/common/gsd-device-manager-udev.c |   26 ++++++++++++++++++++++++++
 1 files changed, 26 insertions(+), 0 deletions(-)
---
diff --git a/panels/common/gsd-device-manager-udev.c b/panels/common/gsd-device-manager-udev.c
index 6289f55..1522f40 100644
--- a/panels/common/gsd-device-manager-udev.c
+++ b/panels/common/gsd-device-manager-udev.c
@@ -24,6 +24,7 @@
 #include <string.h>
 #include <gudev/gudev.h>
 
+#include <gdk/gdkwayland.h>
 #include "gsd-device-manager-udev.h"
 
 struct _GsdUdevDeviceManager
@@ -221,6 +222,30 @@ gsd_udev_device_manager_list_devices (GsdDeviceManager *manager,
        return devices;
 }
 
+static GsdDevice *
+gsd_udev_device_manager_lookup_device (GsdDeviceManager *manager,
+                                      GdkDevice        *gdk_device)
+{
+       const gchar *node_path;
+       GHashTableIter iter;
+       GsdDevice *device;
+
+       node_path = gdk_wayland_device_get_node_path (gdk_device);
+       if (!node_path)
+               return NULL;
+
+       g_hash_table_iter_init (&iter, GSD_UDEV_DEVICE_MANAGER (manager)->devices);
+
+       while (g_hash_table_iter_next (&iter, NULL, (gpointer *) &device)) {
+               if (g_strcmp0 (node_path,
+                              gsd_device_get_device_file (device)) == 0) {
+                       return device;
+               }
+       }
+
+       return NULL;
+}
+
 static void
 gsd_udev_device_manager_class_init (GsdUdevDeviceManagerClass *klass)
 {
@@ -229,4 +254,5 @@ gsd_udev_device_manager_class_init (GsdUdevDeviceManagerClass *klass)
 
        object_class->finalize = gsd_udev_device_manager_finalize;
        manager_class->list_devices = gsd_udev_device_manager_list_devices;
+       manager_class->lookup_device = gsd_udev_device_manager_lookup_device;
 }