1 files changed, 143 insertions, 0 deletions
diff --git a/dom/base/nsScreen.h b/dom/base/nsScreen.h
new file mode 100644
index 0000000000..53f6ec8b0b
--- /dev/null
+++ b/dom/base/nsScreen.h
@@ -0,0 +1,143 @@
+/* -*- 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/Attributes.h"
+#include "mozilla/dom/ScreenBinding.h"
+#include "mozilla/dom/ScreenLuminance.h"
+#include "mozilla/dom/ScreenOrientation.h"
+#include "mozilla/DOMEventTargetHelper.h"
+#include "mozilla/ErrorResult.h"
+#include "mozilla/StaticPrefs_media.h"
+#include "nsCOMPtr.h"
+#include "nsGlobalWindowOuter.h"
+#include "mozilla/gfx/Rect.h"
+#include "Units.h"
+
+class nsDeviceContext;
+
+// Script "screen" object
+class nsScreen : public mozilla::DOMEventTargetHelper {
+  using ErrorResult = mozilla::ErrorResult;
+
+ public:
+  static already_AddRefed<nsScreen> Create(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 GetTop(ErrorResult& aRv) {
+    mozilla::CSSIntRect rect;
+    aRv = GetRect(rect);
+    return rect.y;
+  }
+
+  int32_t GetLeft(ErrorResult& aRv) {
+    mozilla::CSSIntRect rect;
+    aRv = GetRect(rect);
+    return rect.x;
+  }
+
+  int32_t GetWidth(ErrorResult& aRv) {
+    mozilla::CSSIntRect rect;
+    aRv = GetRect(rect);
+    return rect.Width();
+  }
+
+  int32_t GetHeight(ErrorResult& aRv) {
+    mozilla::CSSIntRect rect;
+    aRv = GetRect(rect);
+    return rect.Height();
+  }
+
+  int32_t GetPixelDepth(ErrorResult& aRv);
+  int32_t GetColorDepth(ErrorResult& aRv) { return GetPixelDepth(aRv); }
+
+  int32_t GetAvailTop(ErrorResult& aRv) {
+    mozilla::CSSIntRect rect;
+    aRv = GetAvailRect(rect);
+    return rect.y;
+  }
+
+  int32_t GetAvailLeft(ErrorResult& aRv) {
+    mozilla::CSSIntRect rect;
+    aRv = GetAvailRect(rect);
+    return rect.x;
+  }
+
+  int32_t GetAvailWidth(ErrorResult& aRv) {
+    mozilla::CSSIntRect rect;
+    aRv = GetAvailRect(rect);
+    return rect.Width();
+  }
+
+  int32_t GetAvailHeight(ErrorResult& aRv) {
+    mozilla::CSSIntRect rect;
+    aRv = GetAvailRect(rect);
+    return rect.Height();
+  }
+
+  // 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)
+
+  bool MozLockOrientation(const nsAString& aOrientation, ErrorResult& aRv);
+  bool MozLockOrientation(const mozilla::dom::Sequence<nsString>& aOrientations,
+                          ErrorResult& aRv);
+  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();
+  nsresult GetRect(mozilla::CSSIntRect& aRect);
+  nsresult GetAvailRect(mozilla::CSSIntRect& aRect);
+  nsresult GetWindowInnerRect(mozilla::CSSIntRect& aRect);
+
+ private:
+  explicit nsScreen(nsPIDOMWindowInner* aWindow);
+  virtual ~nsScreen();
+
+  bool ShouldResistFingerprinting() const;
+
+  mozilla::dom::Document* TopContentDocumentInRDMPane() const;
+
+  RefPtr<mozilla::dom::ScreenOrientation> mScreenOrientation;
+};
+
+#endif /* nsScreen_h___ */