1 files changed, 40 insertions, 0 deletions
diff --git a/widget/android/ScreenHelperAndroid.h b/widget/android/ScreenHelperAndroid.h
new file mode 100644
index 0000000000..96c34d4b52
--- /dev/null
+++ b/widget/android/ScreenHelperAndroid.h
@@ -0,0 +1,40 @@
+/* -*- Mode: C++; tab-width: 40; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * vim: ts=4 sw=2 expandtab:
+ * 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 ScreenHelperAndroid_h___
+#define ScreenHelperAndroid_h___
+
+#include "mozilla/widget/ScreenManager.h"
+#include "nsDataHashtable.h"
+
+namespace mozilla {
+namespace widget {
+
+class ScreenHelperAndroid final : public ScreenManager::Helper {
+ public:
+  class ScreenHelperSupport;
+
+  ScreenHelperAndroid();
+  ~ScreenHelperAndroid();
+
+  static ScreenHelperAndroid* GetSingleton();
+
+  void Refresh();
+
+  void AddScreen(uint32_t aScreenId, DisplayType aDisplayType,
+                 LayoutDeviceIntRect aRect = LayoutDeviceIntRect(),
+                 float aDensity = 1.0f);
+  void RemoveScreen(uint32_t aId);
+  already_AddRefed<Screen> ScreenForId(uint32_t aScreenId);
+
+ private:
+  nsDataHashtable<nsUint32HashKey, RefPtr<Screen>> mScreens;
+};
+
+}  // namespace widget
+}  // namespace mozilla
+
+#endif /* ScreenHelperAndroid_h___ */