1 files changed, 108 insertions, 0 deletions
diff --git a/panels/common/gsd-input-helper.c b/panels/common/gsd-input-helper.c
new file mode 100644
index 0000000..6ffc18b
--- /dev/null
+++ b/panels/common/gsd-input-helper.c
@@ -0,0 +1,108 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
+ *
+ * Copyright (C) 2010 Bastien Nocera <hadess@hadess.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "config.h"
+
+#include <string.h>
+
+#include <gdk/gdk.h>
+#include <gdk/gdkx.h>
+
+#include <sys/types.h>
+#include <X11/Xatom.h>
+#include <X11/extensions/XInput2.h>
+
+#include "gsd-input-helper.h"
+#include "gsd-device-manager.h"
+
+static gboolean
+device_type_is_present (GsdDeviceType type)
+{
+        g_autoptr(GList) l = gsd_device_manager_list_devices (gsd_device_manager_get (),
+                                                              type);
+        return l != NULL;
+}
+
+gboolean
+touchscreen_is_present (void)
+{
+        return device_type_is_present (GSD_DEVICE_TYPE_TOUCHSCREEN);
+}
+
+gboolean
+touchpad_is_present (void)
+{
+        return device_type_is_present (GSD_DEVICE_TYPE_TOUCHPAD);
+}
+
+gboolean
+mouse_is_present (void)
+{
+        return device_type_is_present (GSD_DEVICE_TYPE_MOUSE);
+}
+
+char *
+xdevice_get_device_node (int deviceid)
+{
+        GdkDisplay    *display;
+        Atom           prop;
+        Atom           act_type;
+        int            act_format;
+        unsigned long  nitems, bytes_after;
+        unsigned char *data;
+        char          *ret;
+
+        display = gdk_display_get_default ();
+        gdk_display_sync (display);
+
+        prop = XInternAtom (GDK_DISPLAY_XDISPLAY (display), "Device Node", False);
+        if (!prop)
+                return NULL;
+
+        gdk_x11_display_error_trap_push (display);
+
+        if (!XIGetProperty (GDK_DISPLAY_XDISPLAY (display),
+                            deviceid, prop, 0, 1000, False,
+                            AnyPropertyType, &act_type, &act_format,
+                            &nitems, &bytes_after, &data) == Success) {
+                gdk_x11_display_error_trap_pop_ignored (display);
+                return NULL;
+        }
+        if (gdk_x11_display_error_trap_pop (display))
+                goto out;
+
+        if (nitems == 0)
+                goto out;
+
+        if (act_type != XA_STRING)
+                goto out;
+
+        /* Unknown string format */
+        if (act_format != 8)
+                goto out;
+
+        ret = g_strdup ((char *) data);
+
+        XFree (data);
+        return ret;
+
+out:
+        XFree (data);
+        return NULL;
+}