1 files changed, 52 insertions, 0 deletions
diff --git a/widget/gtk/WidgetUtilsGtk.cpp b/widget/gtk/WidgetUtilsGtk.cpp
new file mode 100644
index 0000000000..a0299bdf14
--- /dev/null
+++ b/widget/gtk/WidgetUtilsGtk.cpp
@@ -0,0 +1,52 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "WidgetUtilsGtk.h"
+#include "nsWindow.h"
+#include <gtk/gtk.h>
+
+namespace mozilla {
+
+namespace widget {
+
+int32_t WidgetUtilsGTK::IsTouchDeviceSupportPresent() {
+  int32_t result = 0;
+  GdkDisplay* display = gdk_display_get_default();
+  if (!display) {
+    return 0;
+  }
+
+  GdkDeviceManager* manager = gdk_display_get_device_manager(display);
+  if (!manager) {
+    return 0;
+  }
+
+  GList* devices =
+      gdk_device_manager_list_devices(manager, GDK_DEVICE_TYPE_SLAVE);
+  GList* list = devices;
+
+  while (devices) {
+    GdkDevice* device = static_cast<GdkDevice*>(devices->data);
+    if (gdk_device_get_source(device) == GDK_SOURCE_TOUCHSCREEN) {
+      result = 1;
+      break;
+    }
+    devices = devices->next;
+  }
+
+  if (list) {
+    g_list_free(list);
+  }
+
+  return result;
+}
+
+bool IsMainWindowTransparent() {
+  return nsWindow::IsToplevelWindowTransparent();
+}
+
+}  // namespace widget
+
+}  // namespace mozilla