1 files changed, 52 insertions, 0 deletions
diff --git a/widget/android/GeckoScreenOrientation.h b/widget/android/GeckoScreenOrientation.h
new file mode 100644
index 0000000000..bbfb3ae3cf
--- /dev/null
+++ b/widget/android/GeckoScreenOrientation.h
@@ -0,0 +1,52 @@
+/* -*- Mode: c++; c-basic-offset: 2; 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 "nsAppShell.h"
+#include "nsCOMPtr.h"
+#include "nsIScreenManager.h"
+
+#include "mozilla/Hal.h"
+#include "mozilla/java/GeckoScreenOrientationNatives.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<hal::ScreenOrientation>(aOrientation), aAngle,
+        colorDepth, pixelDepth));
+  }
+};
+
+}  // namespace mozilla
+
+#endif  // GeckoScreenOrientation_h