1 files changed, 103 insertions, 0 deletions
diff --git a/dom/base/nsScreen.h b/dom/base/nsScreen.h
new file mode 100644
index 0000000000..aa4158e94e
--- /dev/null
+++ b/dom/base/nsScreen.h
@@ -0,0 +1,103 @@
+/* -*- 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 nsScreen_h___
+#define nsScreen_h___
+
+#include "mozilla/dom/ScreenBinding.h"
+#include "mozilla/dom/ScreenLuminance.h"
+#include "mozilla/dom/ScreenOrientation.h"
+#include "mozilla/DOMEventTargetHelper.h"
+#include "mozilla/StaticPrefs_media.h"
+#include "Units.h"
+
+class nsDeviceContext;
+
+namespace mozilla {
+enum class RFPTarget : uint64_t;
+}
+
+// Script "screen" object
+class nsScreen : public mozilla::DOMEventTargetHelper {
+ public:
+  explicit nsScreen(nsPIDOMWindowInner* aWindow);
+
+  NS_DECL_ISUPPORTS_INHERITED
+  NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(nsScreen,
+                                           mozilla::DOMEventTargetHelper)
+
+  nsPIDOMWindowInner* GetParentObject() const { return GetOwner(); }
+
+  nsPIDOMWindowOuter* GetOuter() const;
+
+  int32_t Top() { return GetRect().y; }
+  int32_t Left() { return GetRect().x; }
+  int32_t Width() { return GetRect().Width(); }
+  int32_t Height() { return GetRect().Height(); }
+
+  int32_t AvailTop() { return GetAvailRect().y; }
+  int32_t AvailLeft() { return GetAvailRect().x; }
+  int32_t AvailWidth() { return GetAvailRect().Width(); }
+  int32_t AvailHeight() { return GetAvailRect().Height(); }
+
+  int32_t PixelDepth();
+  int32_t ColorDepth() { return PixelDepth(); }
+
+  // Media Capabilities extension
+  mozilla::dom::ScreenColorGamut ColorGamut() const {
+    return mozilla::dom::ScreenColorGamut::Srgb;
+  }
+
+  already_AddRefed<mozilla::dom::ScreenLuminance> GetLuminance() const {
+    return nullptr;
+  }
+
+  static bool MediaCapabilitiesEnabled(JSContext* aCx, JSObject* aGlobal) {
+    return mozilla::StaticPrefs::media_media_capabilities_screen_enabled();
+  }
+
+  IMPL_EVENT_HANDLER(change);
+
+  uint16_t GetOrientationAngle() const;
+  mozilla::hal::ScreenOrientation GetOrientationType() const;
+
+  // Deprecated
+  void GetMozOrientation(nsString& aOrientation,
+                         mozilla::dom::CallerType aCallerType) const;
+
+  IMPL_EVENT_HANDLER(mozorientationchange)
+
+  // This function is deprecated, use ScreenOrientation API instead.
+  bool MozLockOrientation(const nsAString&) { return false; };
+  bool MozLockOrientation(const mozilla::dom::Sequence<nsString>&) {
+    return false;
+  }
+  void MozUnlockOrientation() {}
+
+  virtual JSObject* WrapObject(JSContext* aCx,
+                               JS::Handle<JSObject*> aGivenProto) override;
+
+  mozilla::dom::ScreenOrientation* Orientation() const;
+  mozilla::dom::ScreenOrientation* GetOrientationIfExists() const {
+    return mScreenOrientation.get();
+  }
+
+ protected:
+  nsDeviceContext* GetDeviceContext() const;
+  mozilla::CSSIntRect GetRect();
+  mozilla::CSSIntRect GetAvailRect();
+  mozilla::CSSIntRect GetWindowInnerRect();
+
+ private:
+  virtual ~nsScreen();
+
+  bool ShouldResistFingerprinting(mozilla::RFPTarget aTarget) const;
+
+  mozilla::dom::Document* TopContentDocumentInRDMPane() const;
+
+  RefPtr<mozilla::dom::ScreenOrientation> mScreenOrientation;
+};
+
+#endif /* nsScreen_h___ */