widget/uikit/nsScreenManager.h

   1 /* -*- Mode: C++; tab-width: 4; 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
   6 #ifndef nsScreenManager_h_
   7 #define nsScreenManager_h_
   8
   9 #include "nsBaseScreen.h"
  10 #include "nsIScreenManager.h"
  11 #include "nsCOMPtr.h"
  12 #include "nsRect.h"
  13
  14 @class UIScreen;
  15
  16 class UIKitScreen : public nsBaseScreen {
  17  public:
  18   explicit UIKitScreen(UIScreen* screen);
  19   ~UIKitScreen() {}
  20
  21   NS_IMETHOD GetId(uint32_t* outId) override {
  22     *outId = 0;
  23     return NS_OK;
  24   }
  25
  26   NS_IMETHOD GetRect(int32_t* aLeft, int32_t* aTop, int32_t* aWidth,
  27                      int32_t* aHeight) override;
  28   NS_IMETHOD GetAvailRect(int32_t* aLeft, int32_t* aTop, int32_t* aWidth,
  29                           int32_t* aHeight) override;
  30   NS_IMETHOD GetRectDisplayPix(int32_t* aLeft, int32_t* aTop, int32_t* aWidth,
  31                                int32_t* aHeight) override;
  32   NS_IMETHOD GetAvailRectDisplayPix(int32_t* aLeft, int32_t* aTop,
  33                                     int32_t* aWidth, int32_t* aHeight) override;
  34   NS_IMETHOD GetPixelDepth(int32_t* aPixelDepth) override;
  35   NS_IMETHOD GetColorDepth(int32_t* aColorDepth) override;
  36   NS_IMETHOD GetContentsScaleFactor(double* aContentsScaleFactor) override;
  37   NS_IMETHOD GetDefaultCSSScaleFactor(double* aScaleFactor) override {
  38     return GetContentsScaleFactor(aScaleFactor);
  39   }
  40
  41  private:
  42   UIScreen* mScreen;
  43 };
  44
  45 class UIKitScreenManager : public nsIScreenManager {
  46  public:
  47   UIKitScreenManager();
  48
  49   NS_DECL_ISUPPORTS
  50
  51   NS_DECL_NSISCREENMANAGER
  52
  53   static LayoutDeviceIntRect GetBounds();
  54
  55  private:
  56   virtual ~UIKitScreenManager() {}
  57   // TODO: support >1 screen, iPad supports external displays
  58   nsCOMPtr<nsIScreen> mScreen;
  59 };
  60
  61 #endif  // nsScreenManager_h_