1 files changed, 130 insertions, 0 deletions
diff --git a/intern/ghost/intern/GHOST_WaylandCursorSettings.h b/intern/ghost/intern/GHOST_WaylandCursorSettings.h
new file mode 100644
index 00000000000..c7d2d82ff84
--- /dev/null
+++ b/intern/ghost/intern/GHOST_WaylandCursorSettings.h
@@ -0,0 +1,130 @@
+/*
+ * 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, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+/** \file
+ * \ingroup GHOST
+ */
+
+#pragma once
+#include <dbus/dbus.h>
+#include <string>
+
+static DBusMessage *get_setting_sync(DBusConnection *const connection,
+                                     const char *key,
+                                     const char *value)
+{
+  DBusError error;
+  dbus_bool_t success;
+  DBusMessage *message;
+  DBusMessage *reply;
+
+  dbus_error_init(&error);
+
+  message = dbus_message_new_method_call("org.freedesktop.portal.Desktop",
+                                         "/org/freedesktop/portal/desktop",
+                                         "org.freedesktop.portal.Settings",
+                                         "Read");
+
+  success = dbus_message_append_args(
+      message, DBUS_TYPE_STRING, &key, DBUS_TYPE_STRING, &value, DBUS_TYPE_INVALID);
+
+  if (!success) {
+    return NULL;
+  }
+
+  reply = dbus_connection_send_with_reply_and_block(
+      connection, message, DBUS_TIMEOUT_USE_DEFAULT, &error);
+
+  dbus_message_unref(message);
+
+  if (dbus_error_is_set(&error)) {
+    return NULL;
+  }
+
+  return reply;
+}
+
+static bool parse_type(DBusMessage *const reply, const int type, void *value)
+{
+  DBusMessageIter iter[3];
+
+  dbus_message_iter_init(reply, &iter[0]);
+  if (dbus_message_iter_get_arg_type(&iter[0]) != DBUS_TYPE_VARIANT) {
+    return false;
+  }
+
+  dbus_message_iter_recurse(&iter[0], &iter[1]);
+  if (dbus_message_iter_get_arg_type(&iter[1]) != DBUS_TYPE_VARIANT) {
+    return false;
+  }
+
+  dbus_message_iter_recurse(&iter[1], &iter[2]);
+  if (dbus_message_iter_get_arg_type(&iter[2]) != type) {
+    return false;
+  }
+
+  dbus_message_iter_get_basic(&iter[2], value);
+
+  return true;
+}
+
+static bool get_cursor_settings(std::string &theme, int &size)
+{
+  static const char name[] = "org.gnome.desktop.interface";
+  static const char key_theme[] = "cursor-theme";
+  static const char key_size[] = "cursor-size";
+
+  DBusError error;
+  DBusConnection *connection;
+  DBusMessage *reply;
+  const char *value_theme = NULL;
+
+  dbus_error_init(&error);
+
+  connection = dbus_bus_get(DBUS_BUS_SESSION, &error);
+
+  if (dbus_error_is_set(&error)) {
+    return false;
+  }
+
+  reply = get_setting_sync(connection, name, key_theme);
+  if (!reply) {
+    return false;
+  }
+
+  if (!parse_type(reply, DBUS_TYPE_STRING, &value_theme)) {
+    dbus_message_unref(reply);
+    return false;
+  }
+
+  theme = std::string(value_theme);
+
+  dbus_message_unref(reply);
+
+  reply = get_setting_sync(connection, name, key_size);
+  if (!reply) {
+    return false;
+  }
+
+  if (!parse_type(reply, DBUS_TYPE_INT32, &size)) {
+    dbus_message_unref(reply);
+    return false;
+  }
+
+  dbus_message_unref(reply);
+
+  return true;
+}