1 files changed, 54 insertions, 0 deletions
diff --git a/widget/Screen.h b/widget/Screen.h
new file mode 100644
index 0000000000..6f284b76c7
--- /dev/null
+++ b/widget/Screen.h
@@ -0,0 +1,54 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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/. */
+
+#ifndef mozilla_widget_Screen_h
+#define mozilla_widget_Screen_h
+
+#include "nsIScreen.h"
+
+#include "Units.h"
+
+namespace mozilla {
+namespace dom {
+class ScreenDetails;
+}  // namespace dom
+}  // namespace mozilla
+
+namespace mozilla {
+namespace widget {
+
+class Screen final : public nsIScreen {
+ public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSISCREEN
+
+  Screen(LayoutDeviceIntRect aRect, LayoutDeviceIntRect aAvailRect,
+         uint32_t aPixelDepth, uint32_t aColorDepth,
+         DesktopToLayoutDeviceScale aContentsScale,
+         CSSToLayoutDeviceScale aDefaultCssScale, float dpi);
+  explicit Screen(const mozilla::dom::ScreenDetails& aScreenDetails);
+  Screen(const Screen& aOther);
+
+  mozilla::dom::ScreenDetails ToScreenDetails();
+
+ private:
+  virtual ~Screen() = default;
+
+  LayoutDeviceIntRect mRect;
+  LayoutDeviceIntRect mAvailRect;
+  DesktopIntRect mRectDisplayPix;
+  DesktopIntRect mAvailRectDisplayPix;
+  uint32_t mPixelDepth;
+  uint32_t mColorDepth;
+  DesktopToLayoutDeviceScale mContentsScale;
+  CSSToLayoutDeviceScale mDefaultCssScale;
+  float mDPI;
+};
+
+}  // namespace widget
+}  // namespace mozilla
+
+#endif