1 files changed, 60 insertions, 0 deletions
diff --git a/widget/uikit/nsScreenManager.h b/widget/uikit/nsScreenManager.h
new file mode 100644
index 0000000000..db4d7ed8e9
--- /dev/null
+++ b/widget/uikit/nsScreenManager.h
@@ -0,0 +1,60 @@
+/* -*- Mode: C++; tab-width: 4; 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/. */
+
+#ifndef nsScreenManager_h_
+#define nsScreenManager_h_
+
+#include "nsBaseScreen.h"
+#include "nsIScreenManager.h"
+#include "nsCOMPtr.h"
+#include "nsRect.h"
+
+@class UIScreen;
+
+class UIKitScreen : public nsBaseScreen {
+ public:
+  explicit UIKitScreen(UIScreen* screen);
+  ~UIKitScreen() {}
+
+  NS_IMETHOD GetId(uint32_t* outId) override {
+    *outId = 0;
+    return NS_OK;
+  }
+
+  NS_IMETHOD GetRect(int32_t* aLeft, int32_t* aTop, int32_t* aWidth, int32_t* aHeight) override;
+  NS_IMETHOD GetAvailRect(int32_t* aLeft, int32_t* aTop, int32_t* aWidth,
+                          int32_t* aHeight) override;
+  NS_IMETHOD GetRectDisplayPix(int32_t* aLeft, int32_t* aTop, int32_t* aWidth,
+                               int32_t* aHeight) override;
+  NS_IMETHOD GetAvailRectDisplayPix(int32_t* aLeft, int32_t* aTop, int32_t* aWidth,
+                                    int32_t* aHeight) override;
+  NS_IMETHOD GetPixelDepth(int32_t* aPixelDepth) override;
+  NS_IMETHOD GetColorDepth(int32_t* aColorDepth) override;
+  NS_IMETHOD GetContentsScaleFactor(double* aContentsScaleFactor) override;
+  NS_IMETHOD GetDefaultCSSScaleFactor(double* aScaleFactor) override {
+    return GetContentsScaleFactor(aScaleFactor);
+  }
+
+ private:
+  UIScreen* mScreen;
+};
+
+class UIKitScreenManager : public nsIScreenManager {
+ public:
+  UIKitScreenManager();
+
+  NS_DECL_ISUPPORTS
+
+  NS_DECL_NSISCREENMANAGER
+
+  static LayoutDeviceIntRect GetBounds();
+
+ private:
+  virtual ~UIKitScreenManager() {}
+  // TODO: support >1 screen, iPad supports external displays
+  nsCOMPtr<nsIScreen> mScreen;
+};
+
+#endif  // nsScreenManager_h_