1 files changed, 71 insertions, 0 deletions
diff --git a/widget/ScreenProxy.h b/widget/ScreenProxy.h
new file mode 100644
index 0000000000..22e78c36d5
--- /dev/null
+++ b/widget/ScreenProxy.h
@@ -0,0 +1,71 @@
+/* -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 2; -*- */
+/* vim: set sw=4 ts=8 et 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 mozilla_widget_ScreenProxy_h
+#define mozilla_widget_ScreenProxy_h
+
+#include "nsBaseScreen.h"
+#include "mozilla/dom/PScreenManagerChild.h"
+#include "mozilla/dom/TabChild.h"
+
+class nsScreenManagerProxy;
+
+namespace mozilla {
+namespace widget {
+
+class ScreenProxy : public nsBaseScreen
+{
+public:
+    ScreenProxy(nsScreenManagerProxy* aScreenManager,
+                mozilla::dom::ScreenDetails aDetails);
+    ~ScreenProxy() {};
+
+    NS_IMETHOD GetId(uint32_t* aId) override;
+
+    NS_IMETHOD GetRect(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 GetAvailRect(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;
+
+private:
+
+    void PopulateByDetails(mozilla::dom::ScreenDetails aDetails);
+    bool EnsureCacheIsValid();
+    void InvalidateCacheOnNextTick();
+    void InvalidateCache();
+
+    double mContentsScaleFactor;
+    RefPtr<nsScreenManagerProxy> mScreenManager;
+    uint32_t mId;
+    int32_t mPixelDepth;
+    int32_t mColorDepth;
+    nsIntRect mRect;
+    nsIntRect mRectDisplayPix;
+    nsIntRect mAvailRect;
+    nsIntRect mAvailRectDisplayPix;
+    bool mCacheValid;
+    bool mCacheWillInvalidate;
+};
+
+} // namespace widget
+} // namespace mozilla
+
+#endif
+