src/third_party/angle/src/common/winrt/CoreWindowNativeWindow.h

   1 //
   2 // Copyright (c) 2002-2014 The ANGLE Project Authors. All rights reserved.
   3 // Use of this source code is governed by a BSD-style license that can be
   4 // found in the LICENSE file.
   5 //
   6
   7 // CoreWindowNativeWindow.h: NativeWindow for managing ICoreWindow native window types.
   8
   9 #ifndef COMMON_COREWINDOWNATIVEWINDOW_H_
  10 #define COMMON_COREWINDOWNATIVEWINDOW_H_
  11
  12 #include "common/winrt/IInspectableNativeWindow.h"
  13 #include <memory>
  14
  15 typedef ABI::Windows::Foundation::__FITypedEventHandler_2_Windows__CUI__CCore__CCoreWindow_Windows__CUI__CCore__CWindowSizeChangedEventArgs_t IWindowSizeChangedEventHandler;
  16 long ConvertDipsToPixels(float dips);
  17
  18 class CoreWindowNativeWindow : public IInspectableNativeWindow, public std::enable_shared_from_this<CoreWindowNativeWindow>
  19 {
  20   public:
  21     ~CoreWindowNativeWindow();
  22     bool initialize(EGLNativeWindowType window, IPropertySet *propertySet);
  23     bool registerForSizeChangeEvents();
  24     void unregisterForSizeChangeEvents();
  25     HRESULT createSwapChain(ID3D11Device *device, DXGIFactory *factory, DXGI_FORMAT format, unsigned int width, unsigned int height, DXGISwapChain **swapChain);
  26   private:
  27     ComPtr<ABI::Windows::UI::Core::ICoreWindow> mCoreWindow;
  28     ComPtr<IMap<HSTRING, IInspectable*>> mPropertyMap;
  29 };
  30
  31 [uuid(7F924F66-EBAE-40E5-A10B-B8F35E245190)]
  32 class CoreWindowSizeChangedHandler :
  33     public Microsoft::WRL::RuntimeClass<Microsoft::WRL::RuntimeClassFlags<Microsoft::WRL::ClassicCom>, IWindowSizeChangedEventHandler>
  34 {
  35   public:
  36     CoreWindowSizeChangedHandler() { }
  37     HRESULT RuntimeClassInitialize(std::shared_ptr<IInspectableNativeWindow> host)
  38     {
  39         if (!host)
  40         {
  41             return E_INVALIDARG;
  42         }
  43
  44         mHost = host;
  45         return S_OK;
  46     }
  47
  48     // IWindowSizeChangedEventHandler
  49     IFACEMETHOD(Invoke)(ABI::Windows::UI::Core::ICoreWindow *sender, ABI::Windows::UI::Core::IWindowSizeChangedEventArgs *e)
  50     {
  51         std::shared_ptr<IInspectableNativeWindow> host = mHost.lock();
  52         if (host)
  53         {
  54             ABI::Windows::Foundation::Size windowSize;
  55             if (SUCCEEDED(e->get_Size(&windowSize)))
  56             {
  57                 SIZE windowSizeInPixels = { ConvertDipsToPixels(windowSize.Width), ConvertDipsToPixels(windowSize.Height) };
  58                 host->setNewClientSize(windowSizeInPixels);
  59             }
  60         }
  61
  62         return S_OK;
  63     }
  64
  65   private:
  66     std::weak_ptr<IInspectableNativeWindow> mHost;
  67 };
  68
  69 HRESULT getCoreWindowSizeInPixels(const ComPtr<ABI::Windows::UI::Core::ICoreWindow>& coreWindow, RECT *windowSize);
  70
  71 #endif // COMMON_COREWINDOWNATIVEWINDOW_H_