1 files changed, 55 insertions, 0 deletions
diff --git a/widget/android/GeckoScreenOrientation.h b/widget/android/GeckoScreenOrientation.h
new file mode 100644
index 0000000000..c6e5861bef
--- /dev/null
+++ b/widget/android/GeckoScreenOrientation.h
@@ -0,0 +1,55 @@
+/* -*- Mode: c++; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
+ * 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 GeckoScreenOrientation_h
+#define GeckoScreenOrientation_h
+
+#include "GeneratedJNINatives.h"
+#include "nsAppShell.h"
+#include "nsCOMPtr.h"
+#include "nsIScreenManager.h"
+
+#include "mozilla/Hal.h"
+#include "mozilla/dom/ScreenOrientation.h"
+
+namespace mozilla {
+
+class GeckoScreenOrientation final
+    : public java::GeckoScreenOrientation::Natives<GeckoScreenOrientation>
+{
+    GeckoScreenOrientation() = delete;
+
+public:
+    static void
+    OnOrientationChange(int16_t aOrientation, int16_t aAngle)
+    {
+        nsCOMPtr<nsIScreenManager> screenMgr =
+                do_GetService("@mozilla.org/gfx/screenmanager;1");
+        nsCOMPtr<nsIScreen> screen;
+
+        if (!screenMgr || NS_FAILED(screenMgr->GetPrimaryScreen(
+                getter_AddRefs(screen))) || !screen) {
+            return;
+        }
+
+        nsIntRect rect;
+        int32_t colorDepth, pixelDepth;
+
+        if (NS_FAILED(screen->GetRect(&rect.x, &rect.y,
+                                      &rect.width, &rect.height)) ||
+                NS_FAILED(screen->GetColorDepth(&colorDepth)) ||
+                NS_FAILED(screen->GetPixelDepth(&pixelDepth))) {
+            return;
+        }
+
+        hal::NotifyScreenConfigurationChange(hal::ScreenConfiguration(
+                rect, static_cast<dom::ScreenOrientationInternal>(aOrientation),
+                aAngle, colorDepth, pixelDepth));
+    }
+};
+
+} // namespace mozilla
+
+#endif // GeckoScreenOrientation_h