The Tor Browser: dom/base/nsScreen.h@b8a032363ba2

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

     1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

     2 /* This Source Code Form is subject to the terms of the Mozilla Public

     3  * License, v. 2.0. If a copy of the MPL was not distributed with this

     4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     5 #ifndef nsScreen_h___

     6 #define nsScreen_h___

     8 #include "mozilla/Attributes.h"

     9 #include "mozilla/dom/ScreenOrientation.h"

    10 #include "mozilla/DOMEventTargetHelper.h"

    11 #include "mozilla/ErrorResult.h"

    12 #include "mozilla/HalScreenConfiguration.h"

    13 #include "nsIDOMScreen.h"

    14 #include "nsCOMPtr.h"

    15 #include "nsRect.h"

    17 class nsDeviceContext;

    19 // Script "screen" object

    20 class nsScreen : public mozilla::DOMEventTargetHelper

    21                , public nsIDOMScreen

    22                , public mozilla::hal::ScreenConfigurationObserver

    23 {

    24   typedef mozilla::ErrorResult ErrorResult;

    25 public:

    26   static already_AddRefed<nsScreen> Create(nsPIDOMWindow* aWindow);

    28   NS_DECL_ISUPPORTS_INHERITED

    29   NS_DECL_NSIDOMSCREEN

    30   NS_REALLY_FORWARD_NSIDOMEVENTTARGET(mozilla::DOMEventTargetHelper)

    32   nsPIDOMWindow* GetParentObject() const

    33   {

    34     return GetOwner();

    35   }

    37   int32_t GetTop(ErrorResult& aRv)

    38   {

    39     nsRect rect;

    40     aRv = GetRect(rect);

    41     return rect.y;

    42   }

    44   int32_t GetLeft(ErrorResult& aRv)

    45   {

    46     nsRect rect;

    47     aRv = GetRect(rect);

    48     return rect.x;

    49   }

    51   int32_t GetWidth(ErrorResult& aRv)

    52   {

    53     nsRect rect;

    54     if (IsDeviceSizePageSize()) {

    55       nsCOMPtr<nsPIDOMWindow> owner = GetOwner();

    56       if (owner) {

    57         int32_t innerWidth = 0;

    58         aRv = owner->GetInnerWidth(&innerWidth);

    59         return innerWidth;

    60       }

    61     }

    63     aRv = GetRect(rect);

    64     return rect.width;

    65   }

    67   int32_t GetHeight(ErrorResult& aRv)

    68   {

    69     nsRect rect;

    70     if (IsDeviceSizePageSize()) {

    71       nsCOMPtr<nsPIDOMWindow> owner = GetOwner();

    72       if (owner) {

    73         int32_t innerHeight = 0;

    74         aRv = owner->GetInnerHeight(&innerHeight);

    75         return innerHeight;

    76       }

    77     }

    79     aRv = GetRect(rect);

    80     return rect.height;

    81   }

    83   int32_t GetPixelDepth(ErrorResult& aRv);

    84   int32_t GetColorDepth(ErrorResult& aRv)

    85   {

    86     return GetPixelDepth(aRv);

    87   }

    89   int32_t GetAvailTop(ErrorResult& aRv)

    90   {

    91     nsRect rect;

    92     aRv = GetAvailRect(rect);

    93     return rect.y;

    94   }

    96   int32_t GetAvailLeft(ErrorResult& aRv)

    97   {

    98     nsRect rect;

    99     aRv = GetAvailRect(rect);

   100     return rect.x;

   101   }

   103   int32_t GetAvailWidth(ErrorResult& aRv)

   104   {

   105     nsRect rect;

   106     aRv = GetAvailRect(rect);

   107     return rect.width;

   108   }

   110   int32_t GetAvailHeight(ErrorResult& aRv)

   111   {

   112     nsRect rect;

   113     aRv = GetAvailRect(rect);

   114     return rect.height;

   115   }

   117   void GetMozOrientation(nsString& aOrientation);

   119   IMPL_EVENT_HANDLER(mozorientationchange)

   121   bool MozLockOrientation(const nsAString& aOrientation, ErrorResult& aRv);

   122   bool MozLockOrientation(const mozilla::dom::Sequence<nsString>& aOrientations, ErrorResult& aRv);

   123   void MozUnlockOrientation();

   125   virtual JSObject* WrapObject(JSContext* aCx) MOZ_OVERRIDE;

   127   void Notify(const mozilla::hal::ScreenConfiguration& aConfiguration);

   129 protected:

   130   nsDeviceContext* GetDeviceContext();

   131   nsresult GetRect(nsRect& aRect);

   132   nsresult GetAvailRect(nsRect& aRect);

   133   bool IsChrome();

   134   nsresult GetDOMWindow(nsIDOMWindow **aResult);

   135   nsresult GetWindowInnerRect(nsRect& aRect);

   137   mozilla::dom::ScreenOrientation mOrientation;

   139 private:

   140   class FullScreenEventListener MOZ_FINAL : public nsIDOMEventListener

   141   {

   142   public:

   143     FullScreenEventListener() {};

   145     NS_DECL_ISUPPORTS

   146     NS_DECL_NSIDOMEVENTLISTENER

   147   };

   149   nsScreen(nsPIDOMWindow* aWindow);

   150   virtual ~nsScreen();

   152   enum LockPermission {

   153     LOCK_DENIED,

   154     FULLSCREEN_LOCK_ALLOWED,

   155     LOCK_ALLOWED

   156   };

   158   LockPermission GetLockOrientationPermission() const;

   160   bool IsDeviceSizePageSize();

   162   nsRefPtr<FullScreenEventListener> mEventListener;

   163 };

   165 #endif /* nsScreen_h___ */

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