win8/metro_driver/metro_driver_win7.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "stdafx.h"
   6 #include <corewindow.h>
   7 #include <shobjidl.h>
   8
   9 #include "base/logging.h"
  10 #include "ui/gfx/geometry/safe_integer_conversions.h"
  11 #include "ui/gfx/win/msg_util.h"
  12
  13 #pragma comment(lib, "shell32.lib")
  14
  15 EXTERN_C IMAGE_DOS_HEADER __ImageBase;
  16 // Even though we only create a single window, we need to keep this
  17 // count because of the hidden window used by the UI message loop of
  18 // the metro viewer.
  19 int g_window_count = 0;
  20
  21 const wchar_t kAshWin7AppId[] = L"Google.Chrome.AshWin7.1";
  22 const wchar_t kAshWin7CoreWindowHandler[] = L"CoreWindowHandler";
  23 extern float GetModernUIScale();
  24 LRESULT CALLBACK WndProc(HWND hwnd, UINT message, WPARAM wparam,
  25                          LPARAM lparam);
  26
  27 HWND CreateMetroTopLevelWindow(const RECT& work_area) {
  28   HINSTANCE hInst = reinterpret_cast<HINSTANCE>(&__ImageBase);
  29   WNDCLASSEXW wcex;
  30   wcex.cbSize = sizeof(wcex);
  31   wcex.style              = CS_HREDRAW | CS_VREDRAW;
  32   wcex.lpfnWndProc        = WndProc;
  33   wcex.cbClsExtra         = 0;
  34   wcex.cbWndExtra         = 0;
  35   wcex.hInstance          = hInst;
  36   wcex.hIcon              = LoadIcon(::GetModuleHandle(NULL), L"IDR_MAINFRAME");
  37   wcex.hCursor            = LoadCursor(NULL, IDC_ARROW);
  38   wcex.hbrBackground      = (HBRUSH)(COLOR_INACTIVECAPTION+1);
  39   wcex.lpszMenuName       = 0;
  40   wcex.lpszClassName      = L"Windows.UI.Core.CoreWindow";
  41   wcex.hIconSm            = LoadIcon(::GetModuleHandle(NULL), L"IDR_MAINFRAME");
  42
  43   HWND hwnd = ::CreateWindowExW(0,
  44                                 MAKEINTATOM(::RegisterClassExW(&wcex)),
  45                                 L"metro_win7",
  46                                 WS_POPUP | WS_VISIBLE | WS_MINIMIZEBOX,
  47                                 work_area.top, work_area.left,
  48                                 work_area.right, work_area.bottom,
  49                                 NULL, NULL, hInst, NULL);
  50   return hwnd;
  51 }
  52
  53 typedef winfoundtn::ITypedEventHandler<
  54     winapp::Core::CoreApplicationView*,
  55     winapp::Activation::IActivatedEventArgs*> ActivatedHandler;
  56
  57 typedef winfoundtn::ITypedEventHandler<
  58     winui::Core::CoreWindow*,
  59     winui::Core::WindowActivatedEventArgs*> WindowActivatedHandler;
  60
  61 typedef winfoundtn::ITypedEventHandler<
  62     winui::Core::CoreWindow*,
  63     winui::Core::AutomationProviderRequestedEventArgs*>
  64         AutomationProviderHandler;
  65
  66 typedef winfoundtn::ITypedEventHandler<
  67     winui::Core::CoreWindow*,
  68     winui::Core::CharacterReceivedEventArgs*> CharEventHandler;
  69
  70 typedef winfoundtn::ITypedEventHandler<
  71     winui::Core::CoreWindow*,
  72     winui::Core::CoreWindowEventArgs*> CoreWindowEventHandler;
  73
  74 typedef winfoundtn::ITypedEventHandler<
  75     winui::Core::CoreWindow*,
  76     winui::Core::InputEnabledEventArgs*> InputEnabledEventHandler;
  77
  78 typedef winfoundtn::ITypedEventHandler<
  79     winui::Core::CoreWindow*,
  80     winui::Core::KeyEventArgs*> KeyEventHandler;
  81
  82 typedef winfoundtn::ITypedEventHandler<
  83     winui::Core::CoreWindow*,
  84     winui::Core::PointerEventArgs*> PointerEventHandler;
  85
  86 typedef winfoundtn::ITypedEventHandler<
  87     winui::Core::CoreWindow*,
  88     winui::Core::WindowSizeChangedEventArgs*> SizeChangedHandler;
  89
  90 typedef winfoundtn::ITypedEventHandler<
  91     winui::Core::CoreWindow*,
  92     winui::Core::TouchHitTestingEventArgs*> TouchHitTestHandler;
  93
  94 typedef winfoundtn::ITypedEventHandler<
  95     winui::Core::CoreWindow*,
  96     winui::Core::VisibilityChangedEventArgs*> VisibilityChangedHandler;
  97
  98 typedef winfoundtn::ITypedEventHandler<
  99     winui::Core::CoreDispatcher*,
 100     winui::Core::AcceleratorKeyEventArgs*> AcceleratorKeyEventHandler;
 101
 102 // This interface is implemented by classes which handle mouse and keyboard
 103 // input.
 104 class InputHandler {
 105  public:
 106   InputHandler() {}
 107   virtual ~InputHandler() {}
 108
 109   virtual bool HandleKeyboardMessage(const MSG& msg) = 0;
 110   virtual bool HandleMouseMessage(const MSG& msg) = 0;
 111
 112  private:
 113   DISALLOW_COPY_AND_ASSIGN(InputHandler);
 114 };
 115
 116 // This class implements the winrt interfaces corresponding to mouse input.
 117 class MouseEvent : public mswr::RuntimeClass<
 118     winui::Core::IPointerEventArgs,
 119     winui::Input::IPointerPoint,
 120     winui::Input::IPointerPointProperties,
 121     windevs::Input::IPointerDevice> {
 122  public:
 123   MouseEvent(const MSG& msg)
 124       : msg_(msg) {
 125   }
 126
 127   // IPointerEventArgs implementation.
 128   virtual HRESULT STDMETHODCALLTYPE get_CurrentPoint(
 129       winui::Input::IPointerPoint** point) {
 130     return QueryInterface(winui::Input::IID_IPointerPoint,
 131                           reinterpret_cast<void**>(point));
 132   }
 133
 134   virtual HRESULT STDMETHODCALLTYPE get_KeyModifiers(
 135       winsys::VirtualKeyModifiers* modifiers) {
 136     return E_NOTIMPL;
 137   }
 138
 139   virtual HRESULT STDMETHODCALLTYPE GetIntermediatePoints(
 140       winfoundtn::Collections::IVector<winui::Input::PointerPoint*>** points) {
 141     return E_NOTIMPL;
 142   }
 143
 144   // IPointerPoint implementation.
 145   virtual HRESULT STDMETHODCALLTYPE get_PointerDevice(
 146       windevs::Input::IPointerDevice** pointer_device) {
 147     return QueryInterface(windevs::Input::IID_IPointerDevice,
 148                           reinterpret_cast<void**>(pointer_device));
 149   }
 150
 151   virtual HRESULT STDMETHODCALLTYPE get_Position(winfoundtn::Point* position) {
 152     static float scale = GetModernUIScale();
 153     // Scale down the points here as they are scaled up on the other side.
 154     position->X = gfx::ToRoundedInt(CR_GET_X_LPARAM(msg_.lParam) / scale);
 155     position->Y = gfx::ToRoundedInt(CR_GET_Y_LPARAM(msg_.lParam) / scale);
 156     return S_OK;
 157   }
 158
 159   virtual HRESULT STDMETHODCALLTYPE get_PointerId(uint32* pointer_id) {
 160     // TODO(ananta)
 161     // Implement this properly.
 162     *pointer_id = 1;
 163     return S_OK;
 164   }
 165
 166   virtual HRESULT STDMETHODCALLTYPE get_Timestamp(uint64* timestamp) {
 167     *timestamp = msg_.time;
 168     return S_OK;
 169   }
 170
 171   virtual HRESULT STDMETHODCALLTYPE get_Properties(
 172       winui::Input::IPointerPointProperties** properties) {
 173     return QueryInterface(winui::Input::IID_IPointerPointProperties,
 174                           reinterpret_cast<void**>(properties));
 175   }
 176
 177   virtual HRESULT STDMETHODCALLTYPE get_RawPosition(
 178       winfoundtn::Point* position) {
 179     return E_NOTIMPL;
 180   }
 181
 182   virtual HRESULT STDMETHODCALLTYPE get_FrameId(uint32* frame_id) {
 183     return E_NOTIMPL;
 184   }
 185
 186   virtual HRESULT STDMETHODCALLTYPE get_IsInContact(boolean* in_contact) {
 187     return E_NOTIMPL;
 188   }
 189
 190   // IPointerPointProperties implementation.
 191   virtual HRESULT STDMETHODCALLTYPE get_PointerUpdateKind(
 192       winui::Input::PointerUpdateKind* update_kind) {
 193     // TODO(ananta)
 194     // There is no WM_POINTERUPDATE equivalent on Windows 7. Look into
 195     // equivalents.
 196     if (msg_.message == WM_LBUTTONDOWN) {
 197       *update_kind = winui::Input::PointerUpdateKind_LeftButtonPressed;
 198     } else if (msg_.message == WM_RBUTTONDOWN) {
 199       *update_kind = winui::Input::PointerUpdateKind_RightButtonPressed;
 200     } else if (msg_.message == WM_MBUTTONDOWN) {
 201       *update_kind = winui::Input::PointerUpdateKind_MiddleButtonPressed;
 202     } else if (msg_.message == WM_LBUTTONUP) {
 203       *update_kind = winui::Input::PointerUpdateKind_LeftButtonReleased;
 204     } else if (msg_.message == WM_RBUTTONUP) {
 205       *update_kind = winui::Input::PointerUpdateKind_RightButtonReleased;
 206     } else if (msg_.message == WM_MBUTTONUP) {
 207       *update_kind = winui::Input::PointerUpdateKind_MiddleButtonReleased;
 208     }
 209     return S_OK;
 210   }
 211
 212   virtual HRESULT STDMETHODCALLTYPE get_IsLeftButtonPressed(
 213       boolean* left_button_pressed) {
 214     *left_button_pressed = msg_.wParam & MK_LBUTTON ? true : false;
 215     return S_OK;
 216   }
 217
 218   virtual HRESULT STDMETHODCALLTYPE get_IsRightButtonPressed(
 219       boolean* right_button_pressed) {
 220     *right_button_pressed = msg_.wParam & MK_RBUTTON ? true : false;
 221     return S_OK;
 222   }
 223
 224   virtual HRESULT STDMETHODCALLTYPE get_IsMiddleButtonPressed(
 225       boolean* middle_button_pressed) {
 226     *middle_button_pressed = msg_.wParam & MK_MBUTTON ? true : false;
 227     return S_OK;
 228   }
 229
 230   virtual HRESULT STDMETHODCALLTYPE get_IsHorizontalMouseWheel(
 231       boolean* is_horizontal_mouse_wheel) {
 232     *is_horizontal_mouse_wheel =
 233         (msg_.message == WM_MOUSEHWHEEL) ? true : false;
 234     return S_OK;
 235   }
 236
 237   virtual HRESULT STDMETHODCALLTYPE get_MouseWheelDelta(int* delta) {
 238     if (msg_.message == WM_MOUSEWHEEL || msg_.message == WM_MOUSEHWHEEL) {
 239       *delta = GET_WHEEL_DELTA_WPARAM(msg_.wParam);
 240       return S_OK;
 241     } else {
 242       return S_FALSE;
 243     }
 244   }
 245
 246   virtual HRESULT STDMETHODCALLTYPE get_Pressure(float* pressure) {
 247     return E_NOTIMPL;
 248   }
 249
 250   virtual HRESULT STDMETHODCALLTYPE get_IsInverted(boolean* inverted) {
 251     return E_NOTIMPL;
 252   }
 253
 254   virtual HRESULT STDMETHODCALLTYPE get_IsEraser(boolean* is_eraser) {
 255     return E_NOTIMPL;
 256   }
 257
 258   virtual HRESULT STDMETHODCALLTYPE get_Orientation(float* orientation) {
 259     return E_NOTIMPL;
 260   }
 261
 262   virtual HRESULT STDMETHODCALLTYPE get_XTilt(float* x_tilt) {
 263     return E_NOTIMPL;
 264   }
 265
 266   virtual HRESULT STDMETHODCALLTYPE get_YTilt(float* y_tilt) {
 267     return E_NOTIMPL;
 268   }
 269
 270   virtual  HRESULT STDMETHODCALLTYPE get_Twist(float* twist) {
 271     return E_NOTIMPL;
 272   }
 273
 274   virtual HRESULT STDMETHODCALLTYPE get_ContactRect(winfoundtn::Rect* rect) {
 275     return E_NOTIMPL;
 276   }
 277
 278   virtual HRESULT STDMETHODCALLTYPE get_ContactRectRaw(winfoundtn::Rect* rect) {
 279     return E_NOTIMPL;
 280   }
 281
 282   virtual HRESULT STDMETHODCALLTYPE get_TouchConfidence(boolean* confidence) {
 283     return E_NOTIMPL;
 284   }
 285
 286   virtual HRESULT STDMETHODCALLTYPE get_IsPrimary(boolean* is_primary) {
 287     return E_NOTIMPL;
 288   }
 289
 290   virtual HRESULT STDMETHODCALLTYPE get_IsInRange(boolean* is_in_range) {
 291     return E_NOTIMPL;
 292   }
 293
 294   virtual HRESULT STDMETHODCALLTYPE get_IsCanceled(boolean* is_canceled) {
 295     return E_NOTIMPL;
 296   }
 297
 298   virtual HRESULT STDMETHODCALLTYPE get_IsBarrelButtonPressed(
 299       boolean* is_barrel_button_pressed) {
 300     return E_NOTIMPL;
 301   }
 302
 303   virtual HRESULT STDMETHODCALLTYPE get_IsXButton1Pressed(
 304       boolean* is_xbutton1_pressed) {
 305     return E_NOTIMPL;
 306   }
 307
 308   virtual HRESULT STDMETHODCALLTYPE get_IsXButton2Pressed(
 309       boolean* is_xbutton2_pressed) {
 310     return E_NOTIMPL;
 311   }
 312
 313   virtual HRESULT STDMETHODCALLTYPE HasUsage(uint32 usage_page,
 314                                              uint32 usage_id,
 315                                              boolean* has_usage) {
 316     return E_NOTIMPL;
 317   }
 318
 319   virtual HRESULT STDMETHODCALLTYPE GetUsageValue(uint32 usage_page,
 320                                                   uint32 usage_id,
 321                                                   int32* usage_value) {
 322     return E_NOTIMPL;
 323   }
 324
 325   // IPointerDevice implementation.
 326   virtual HRESULT STDMETHODCALLTYPE get_PointerDeviceType(
 327       windevs::Input::PointerDeviceType* device_type) {
 328     if (msg_.message == WM_TOUCH) {
 329       *device_type = windevs::Input::PointerDeviceType_Touch;
 330     } else {
 331       *device_type = windevs::Input::PointerDeviceType_Mouse;
 332     }
 333     return S_OK;
 334   }
 335
 336   virtual HRESULT STDMETHODCALLTYPE get_IsIntegrated(boolean* is_integrated) {
 337     return E_NOTIMPL;
 338   }
 339
 340   virtual HRESULT STDMETHODCALLTYPE get_MaxContacts(uint32* contacts) {
 341     return E_NOTIMPL;
 342   }
 343
 344   virtual HRESULT STDMETHODCALLTYPE get_PhysicalDeviceRect(
 345       winfoundtn::Rect* rect) {
 346     return E_NOTIMPL;
 347   }
 348
 349   virtual HRESULT STDMETHODCALLTYPE get_ScreenRect(winfoundtn::Rect* rect) {
 350     return E_NOTIMPL;
 351   }
 352
 353   virtual HRESULT STDMETHODCALLTYPE get_SupportedUsages(
 354       winfoundtn::Collections::IVectorView<
 355           windevs::Input::PointerDeviceUsage>** usages) {
 356     return E_NOTIMPL;
 357   }
 358
 359  private:
 360   MSG msg_;
 361
 362   DISALLOW_COPY_AND_ASSIGN(MouseEvent);
 363 };
 364
 365 // This class implements the winrt interfaces needed to support keyboard
 366 // character and system character messages.
 367 class KeyEvent : public mswr::RuntimeClass<
 368     winui::Core::IKeyEventArgs,
 369     winui::Core::ICharacterReceivedEventArgs,
 370     winui::Core::IAcceleratorKeyEventArgs> {
 371  public:
 372   KeyEvent(const MSG& msg)
 373       : msg_(msg) {}
 374
 375   // IKeyEventArgs implementation.
 376   virtual HRESULT STDMETHODCALLTYPE get_VirtualKey(
 377       winsys::VirtualKey* virtual_key) {
 378     *virtual_key = static_cast<winsys::VirtualKey>(msg_.wParam);
 379     return S_OK;
 380   }
 381
 382   virtual HRESULT STDMETHODCALLTYPE get_KeyStatus(
 383       winui::Core::CorePhysicalKeyStatus* key_status) {
 384     // As per msdn documentation for the keyboard messages.
 385     key_status->RepeatCount = msg_.lParam & 0x0000FFFF;
 386     key_status->ScanCode = (msg_.lParam >> 16) & 0x00FF;
 387     key_status->IsExtendedKey = (msg_.lParam & (1 << 24));
 388     key_status->IsMenuKeyDown = (msg_.lParam & (1 << 29));
 389     key_status->WasKeyDown = (msg_.lParam & (1 << 30));
 390     key_status->IsKeyReleased = (msg_.lParam & (1 << 31));
 391     return S_OK;
 392   }
 393
 394   // ICharacterReceivedEventArgs implementation.
 395   virtual HRESULT STDMETHODCALLTYPE get_KeyCode(uint32* key_code) {
 396     *key_code = msg_.wParam;
 397     return S_OK;
 398   }
 399
 400   // IAcceleratorKeyEventArgs implementation.
 401   virtual HRESULT STDMETHODCALLTYPE get_EventType(
 402       winui::Core::CoreAcceleratorKeyEventType* event_type) {
 403     if (msg_.message == WM_SYSKEYDOWN) {
 404       *event_type = winui::Core::CoreAcceleratorKeyEventType_SystemKeyDown;
 405     } else if (msg_.message == WM_SYSKEYUP) {
 406       *event_type = winui::Core::CoreAcceleratorKeyEventType_SystemKeyUp;
 407     } else if (msg_.message == WM_SYSCHAR) {
 408       *event_type = winui::Core::CoreAcceleratorKeyEventType_SystemCharacter;
 409     }
 410     return S_OK;
 411   }
 412
 413  private:
 414   MSG msg_;
 415 };
 416
 417 // The following classes are the emulation of the WinRT system as exposed
 418 // to metro applications. There is one application (ICoreApplication) which
 419 // contains a series of Views (ICoreApplicationView) each one of them
 420 // containing a CoreWindow which represents a surface that can drawn to
 421 // and that receives events.
 422 //
 423 // Here is the general dependency hierachy in terms of interfaces:
 424 //
 425 //  IFrameworkViewSource --> IFrameworkView
 426 //          ^                     |
 427 //          |                     |                          metro app
 428 //  ---------------------------------------------------------------------
 429 //          |                     |                         winRT system
 430 //          |                     v
 431 //  ICoreApplication     ICoreApplicationView
 432 //                                |
 433 //                                v
 434 //                          ICoreWindow -----> ICoreWindowInterop
 435 //                                |                  |
 436 //                                |                  |
 437 //                                v                  V
 438 //                         ICoreDispatcher  <==>  real HWND
 439 //
 440 class CoreDispatcherEmulation :
 441     public mswr::RuntimeClass<
 442         winui::Core::ICoreDispatcher,
 443         winui::Core::ICoreAcceleratorKeys> {
 444  public:
 445   CoreDispatcherEmulation(InputHandler* input_handler)
 446       : input_handler_(input_handler),
 447         accelerator_key_event_handler_(NULL) {}
 448
 449   // ICoreDispatcher implementation:
 450   virtual HRESULT STDMETHODCALLTYPE get_HasThreadAccess(boolean* value) {
 451     return S_OK;
 452   }
 453
 454   virtual HRESULT STDMETHODCALLTYPE ProcessEvents(
 455       winui::Core::CoreProcessEventsOption options) {
 456     // We don't support the other message pump modes. So we basically enter a
 457     // traditional message loop that we only exit a teardown.
 458     if (options != winui::Core::CoreProcessEventsOption_ProcessUntilQuit)
 459       return E_FAIL;
 460
 461     MSG msg = {0};
 462     while((::GetMessage(&msg, NULL, 0, 0) != 0) && g_window_count > 0) {
 463       ProcessInputMessage(msg);
 464       ::TranslateMessage(&msg);
 465       ::DispatchMessage(&msg);
 466     }
 467     // TODO(cpu): figure what to do with msg.WParam which we would normally
 468     // return here.
 469     return S_OK;
 470   }
 471
 472   virtual HRESULT STDMETHODCALLTYPE RunAsync(
 473       winui::Core::CoreDispatcherPriority priority,
 474       winui::Core::IDispatchedHandler *agileCallback,
 475       ABI::Windows::Foundation::IAsyncAction** asyncAction) {
 476     return S_OK;
 477   }
 478
 479   virtual HRESULT STDMETHODCALLTYPE RunIdleAsync(
 480       winui::Core::IIdleDispatchedHandler *agileCallback,
 481       winfoundtn::IAsyncAction** asyncAction) {
 482     return S_OK;
 483   }
 484
 485   // ICoreAcceleratorKeys implementation:
 486   virtual HRESULT STDMETHODCALLTYPE add_AcceleratorKeyActivated(
 487       AcceleratorKeyEventHandler* handler,
 488       EventRegistrationToken *pCookie) {
 489     accelerator_key_event_handler_ = handler;
 490     accelerator_key_event_handler_->AddRef();
 491     return S_OK;
 492   }
 493
 494   virtual HRESULT STDMETHODCALLTYPE remove_AcceleratorKeyActivated(
 495       EventRegistrationToken cookie) {
 496     accelerator_key_event_handler_->Release();
 497     accelerator_key_event_handler_ = NULL;
 498     return S_OK;
 499   }
 500
 501  private:
 502   bool ProcessInputMessage(const MSG& msg) {
 503     // Poor man's way of dispatching input events.
 504     bool ret = false;
 505     if (input_handler_) {
 506       if ((msg.message >= WM_KEYFIRST) && (msg.message <= WM_KEYLAST)) {
 507         if ((msg.message == WM_SYSKEYDOWN) || (msg.message == WM_SYSKEYUP) ||
 508             msg.message == WM_SYSCHAR) {
 509           ret = HandleSystemKeys(msg);
 510         } else {
 511           ret = input_handler_->HandleKeyboardMessage(msg);
 512         }
 513       } else if ((msg.message >= WM_MOUSEFIRST) &&
 514                   (msg.message <= WM_MOUSELAST)) {
 515         ret = input_handler_->HandleMouseMessage(msg);
 516       }
 517     }
 518     return ret;
 519   }
 520
 521   bool HandleSystemKeys(const MSG& msg) {
 522     mswr::ComPtr<winui::Core::IAcceleratorKeyEventArgs> event_args;
 523     event_args = mswr::Make<KeyEvent>(msg);
 524     accelerator_key_event_handler_->Invoke(this, event_args.Get());
 525     return true;
 526   }
 527
 528   InputHandler* input_handler_;
 529   AcceleratorKeyEventHandler* accelerator_key_event_handler_;
 530 };
 531
 532 class CoreWindowEmulation
 533     : public mswr::RuntimeClass<
 534         mswr::RuntimeClassFlags<mswr::WinRtClassicComMix>,
 535         winui::Core::ICoreWindow, ICoreWindowInterop>,
 536       public InputHandler {
 537  public:
 538   CoreWindowEmulation(winapp::Core::IFrameworkView* app_view)
 539       : core_hwnd_(NULL),
 540         mouse_moved_handler_(NULL),
 541         mouse_capture_lost_handler_(NULL),
 542         mouse_pressed_handler_(NULL),
 543         mouse_released_handler_(NULL),
 544         mouse_entered_handler_(NULL),
 545         mouse_exited_handler_(NULL),
 546         mouse_wheel_changed_handler_(NULL),
 547         key_down_handler_(NULL),
 548         key_up_handler_(NULL),
 549         character_received_handler_(NULL),
 550         app_view_(app_view),
 551         window_activated_handler_(NULL) {
 552     dispatcher_ = mswr::Make<CoreDispatcherEmulation>(this);
 553
 554     // Unless we select our own AppUserModelID the shell might confuse us
 555     // with the app launcher one and we get the wrong taskbar button and icon.
 556     ::SetCurrentProcessExplicitAppUserModelID(kAshWin7AppId);
 557
 558     RECT work_area = {0};
 559     ::SystemParametersInfo(SPI_GETWORKAREA, 0, &work_area, 0);
 560     if (::IsDebuggerPresent()) {
 561       work_area.top = 0;
 562       work_area.left = 0;
 563       work_area.right = 1600;
 564       work_area.bottom = 900;
 565     }
 566
 567     core_hwnd_ = CreateMetroTopLevelWindow(work_area);
 568     ::SetProp(core_hwnd_, kAshWin7CoreWindowHandler, this);
 569   }
 570
 571   ~CoreWindowEmulation() {
 572     if (core_hwnd_) {
 573       ::RemoveProp(core_hwnd_, kAshWin7CoreWindowHandler);
 574       ::DestroyWindow(core_hwnd_);
 575     }
 576   }
 577
 578   // ICoreWindow implementation:
 579   virtual HRESULT STDMETHODCALLTYPE get_AutomationHostProvider(
 580       IInspectable** value) {
 581     return S_OK;
 582   }
 583
 584   virtual HRESULT STDMETHODCALLTYPE get_Bounds(
 585       winfoundtn::Rect* value) {
 586     RECT rect;
 587     if (!::GetClientRect(core_hwnd_, &rect))
 588       return E_FAIL;
 589     value->Width = rect.right;
 590     value->Height = rect.bottom;
 591     return S_OK;
 592   }
 593
 594   virtual HRESULT STDMETHODCALLTYPE get_CustomProperties(
 595       winfoundtn::Collections::IPropertySet** value) {
 596     return S_OK;
 597   }
 598
 599   virtual HRESULT STDMETHODCALLTYPE get_Dispatcher(
 600       winui::Core::ICoreDispatcher** value) {
 601     return dispatcher_.CopyTo(value);
 602   }
 603
 604   virtual HRESULT STDMETHODCALLTYPE get_FlowDirection(
 605       winui::Core::CoreWindowFlowDirection* value) {
 606     return S_OK;
 607   }
 608
 609   virtual HRESULT STDMETHODCALLTYPE put_FlowDirection(
 610       winui::Core::CoreWindowFlowDirection value) {
 611     return S_OK;
 612   }
 613
 614   virtual HRESULT STDMETHODCALLTYPE get_IsInputEnabled(
 615       boolean* value) {
 616     return S_OK;
 617   }
 618
 619   virtual HRESULT STDMETHODCALLTYPE put_IsInputEnabled(
 620       boolean value) {
 621     return S_OK;
 622   }
 623
 624   virtual HRESULT STDMETHODCALLTYPE get_PointerCursor(
 625       winui::Core::ICoreCursor** value) {
 626     return S_OK;
 627   }
 628
 629   virtual HRESULT STDMETHODCALLTYPE put_PointerCursor(
 630        winui::Core::ICoreCursor* value) {
 631     return S_OK;
 632   }
 633
 634   virtual HRESULT STDMETHODCALLTYPE get_PointerPosition(
 635       winfoundtn::Point* value) {
 636     return S_OK;
 637   }
 638
 639   virtual HRESULT STDMETHODCALLTYPE get_Visible(
 640       boolean* value) {
 641     return S_OK;
 642   }
 643
 644   virtual HRESULT STDMETHODCALLTYPE Activate(void) {
 645     // After we fire OnActivate on the View, Chrome calls us back here.
 646     return S_OK;
 647   }
 648
 649   virtual HRESULT STDMETHODCALLTYPE Close(void) {
 650     ::PostMessage(core_hwnd_, WM_CLOSE, 0, 0);
 651     core_hwnd_ = NULL;
 652     return S_OK;
 653   }
 654
 655   virtual HRESULT STDMETHODCALLTYPE GetAsyncKeyState(
 656       ABI::Windows::System::VirtualKey virtualKey,
 657       winui::Core::CoreVirtualKeyStates* KeyState) {
 658     return S_OK;
 659   }
 660
 661   virtual HRESULT STDMETHODCALLTYPE GetKeyState(
 662       ABI::Windows::System::VirtualKey virtualKey,
 663       winui::Core::CoreVirtualKeyStates* KeyState) {
 664     return S_OK;
 665   }
 666
 667   virtual HRESULT STDMETHODCALLTYPE ReleasePointerCapture(void) {
 668     return S_OK;
 669   }
 670
 671   virtual HRESULT STDMETHODCALLTYPE SetPointerCapture(void) {
 672     return S_OK;
 673   }
 674
 675   virtual HRESULT STDMETHODCALLTYPE add_Activated(
 676       WindowActivatedHandler* handler,
 677       EventRegistrationToken* pCookie) {
 678     window_activated_handler_ = handler;
 679     handler->AddRef();
 680     return S_OK;
 681   }
 682
 683   virtual HRESULT STDMETHODCALLTYPE remove_Activated(
 684       EventRegistrationToken cookie) {
 685     window_activated_handler_->Release();
 686     window_activated_handler_ = NULL;
 687     return S_OK;
 688   }
 689
 690   virtual HRESULT STDMETHODCALLTYPE add_AutomationProviderRequested(
 691       AutomationProviderHandler* handler,
 692       EventRegistrationToken* cookie) {
 693     return S_OK;
 694   }
 695
 696   virtual HRESULT STDMETHODCALLTYPE remove_AutomationProviderRequested(
 697       EventRegistrationToken cookie) {
 698     return S_OK;
 699   }
 700
 701   virtual HRESULT STDMETHODCALLTYPE add_CharacterReceived(
 702       CharEventHandler* handler,
 703       EventRegistrationToken* pCookie) {
 704     character_received_handler_ = handler;
 705     character_received_handler_->AddRef();
 706     return S_OK;
 707   }
 708
 709   virtual HRESULT STDMETHODCALLTYPE remove_CharacterReceived(
 710       EventRegistrationToken cookie) {
 711     character_received_handler_->Release();
 712     character_received_handler_ = NULL;
 713     return S_OK;
 714   }
 715
 716   virtual HRESULT STDMETHODCALLTYPE add_Closed(
 717       CoreWindowEventHandler* handler,
 718       EventRegistrationToken* pCookie) {
 719     return S_OK;
 720   }
 721
 722   virtual HRESULT STDMETHODCALLTYPE remove_Closed(
 723       EventRegistrationToken cookie) {
 724     return S_OK;
 725   }
 726
 727   virtual HRESULT STDMETHODCALLTYPE add_InputEnabled(
 728       InputEnabledEventHandler* handler,
 729       EventRegistrationToken* pCookie) {
 730     return S_OK;
 731   }
 732
 733   virtual HRESULT STDMETHODCALLTYPE remove_InputEnabled(
 734       EventRegistrationToken cookie) {
 735     return S_OK;
 736   }
 737
 738   virtual HRESULT STDMETHODCALLTYPE add_KeyDown(
 739       KeyEventHandler* handler,
 740       EventRegistrationToken* pCookie) {
 741     key_down_handler_ = handler;
 742     key_down_handler_->AddRef();
 743     return S_OK;
 744   }
 745
 746   virtual HRESULT STDMETHODCALLTYPE remove_KeyDown(
 747       EventRegistrationToken cookie) {
 748     key_down_handler_->Release();
 749     key_down_handler_ = NULL;
 750     return S_OK;
 751   }
 752
 753   virtual HRESULT STDMETHODCALLTYPE add_KeyUp(
 754       KeyEventHandler* handler,
 755       EventRegistrationToken* pCookie) {
 756     key_up_handler_ = handler;
 757     key_up_handler_->AddRef();
 758     return S_OK;
 759   }
 760
 761   virtual HRESULT STDMETHODCALLTYPE remove_KeyUp(
 762       EventRegistrationToken cookie) {
 763     key_up_handler_->Release();
 764     key_up_handler_ = NULL;
 765     return S_OK;
 766   }
 767
 768   virtual HRESULT STDMETHODCALLTYPE add_PointerCaptureLost(
 769       PointerEventHandler* handler,
 770       EventRegistrationToken* cookie) {
 771     mouse_capture_lost_handler_ = handler;
 772     return S_OK;
 773   }
 774
 775   virtual HRESULT STDMETHODCALLTYPE remove_PointerCaptureLost(
 776       EventRegistrationToken cookie) {
 777     mouse_capture_lost_handler_ = NULL;
 778     return S_OK;
 779   }
 780
 781   virtual HRESULT STDMETHODCALLTYPE add_PointerEntered(
 782       PointerEventHandler* handler,
 783       EventRegistrationToken* cookie) {
 784     mouse_entered_handler_ = handler;
 785     return S_OK;
 786   }
 787
 788   virtual HRESULT STDMETHODCALLTYPE remove_PointerEntered(
 789       EventRegistrationToken cookie) {
 790     mouse_entered_handler_ = NULL;
 791     return S_OK;
 792   }
 793
 794   virtual HRESULT STDMETHODCALLTYPE add_PointerExited(
 795       PointerEventHandler* handler,
 796       EventRegistrationToken* cookie) {
 797     mouse_exited_handler_ = handler;
 798     return S_OK;
 799   }
 800
 801   virtual HRESULT STDMETHODCALLTYPE remove_PointerExited(
 802       EventRegistrationToken cookie) {
 803     mouse_exited_handler_ = NULL;
 804     return S_OK;
 805   }
 806
 807   virtual HRESULT STDMETHODCALLTYPE add_PointerMoved(
 808       PointerEventHandler* handler,
 809       EventRegistrationToken* cookie) {
 810     mouse_moved_handler_ = handler;
 811     mouse_moved_handler_->AddRef();
 812     return S_OK;
 813   }
 814
 815   virtual HRESULT STDMETHODCALLTYPE remove_PointerMoved(
 816       EventRegistrationToken cookie) {
 817     mouse_moved_handler_->Release();
 818     mouse_moved_handler_ = NULL;
 819     return S_OK;
 820   }
 821
 822   virtual HRESULT STDMETHODCALLTYPE add_PointerPressed(
 823       PointerEventHandler* handler,
 824       EventRegistrationToken* cookie) {
 825     mouse_pressed_handler_ = handler;
 826     mouse_pressed_handler_->AddRef();
 827     return S_OK;
 828   }
 829
 830   virtual HRESULT STDMETHODCALLTYPE remove_PointerPressed(
 831       EventRegistrationToken cookie) {
 832     mouse_pressed_handler_->Release();
 833     mouse_pressed_handler_ = NULL;
 834     return S_OK;
 835   }
 836
 837   virtual HRESULT STDMETHODCALLTYPE add_PointerReleased(
 838       PointerEventHandler* handler,
 839       EventRegistrationToken* cookie) {
 840     mouse_released_handler_ = handler;
 841     mouse_released_handler_->AddRef();
 842     return S_OK;
 843   }
 844
 845   virtual HRESULT STDMETHODCALLTYPE remove_PointerReleased(
 846       EventRegistrationToken cookie) {
 847     mouse_released_handler_->Release();
 848     mouse_released_handler_ = NULL;
 849     return S_OK;
 850   }
 851
 852   virtual HRESULT STDMETHODCALLTYPE add_TouchHitTesting(
 853       TouchHitTestHandler* handler,
 854       EventRegistrationToken* pCookie) {
 855     return S_OK;
 856   }
 857
 858   virtual HRESULT STDMETHODCALLTYPE remove_TouchHitTesting(
 859       EventRegistrationToken cookie) {
 860     return S_OK;
 861   }
 862
 863   virtual HRESULT STDMETHODCALLTYPE add_PointerWheelChanged(
 864       PointerEventHandler* handler,
 865       EventRegistrationToken* cookie) {
 866     mouse_wheel_changed_handler_ = handler;
 867     mouse_wheel_changed_handler_->AddRef();
 868     return S_OK;
 869   }
 870
 871   virtual HRESULT STDMETHODCALLTYPE remove_PointerWheelChanged(
 872       EventRegistrationToken cookie) {
 873     mouse_wheel_changed_handler_->Release();
 874     mouse_wheel_changed_handler_ = NULL;
 875     return S_OK;
 876   }
 877
 878   virtual HRESULT STDMETHODCALLTYPE add_SizeChanged(
 879       SizeChangedHandler* handler,
 880       EventRegistrationToken* pCookie) {
 881     // TODO(cpu): implement this.
 882     return S_OK;
 883   }
 884
 885   virtual HRESULT STDMETHODCALLTYPE remove_SizeChanged(
 886       EventRegistrationToken cookie) {
 887     return S_OK;
 888   }
 889
 890   virtual HRESULT STDMETHODCALLTYPE add_VisibilityChanged(
 891       VisibilityChangedHandler* handler,
 892       EventRegistrationToken* pCookie) {
 893     return S_OK;
 894   }
 895
 896   virtual HRESULT STDMETHODCALLTYPE remove_VisibilityChanged(
 897       EventRegistrationToken cookie) {
 898     return S_OK;
 899   }
 900
 901   // ICoreWindowInterop implementation:
 902   virtual HRESULT STDMETHODCALLTYPE get_WindowHandle(HWND* hwnd) {
 903     if (!core_hwnd_)
 904       return E_FAIL;
 905     *hwnd = core_hwnd_;
 906     return S_OK;
 907   }
 908
 909   virtual HRESULT STDMETHODCALLTYPE put_MessageHandled(
 910     boolean value) {
 911     return S_OK;
 912   }
 913
 914   // InputHandler
 915   virtual bool HandleKeyboardMessage(const MSG& msg) OVERRIDE {
 916     switch (msg.message) {
 917       case WM_KEYDOWN:
 918       case WM_KEYUP: {
 919         mswr::ComPtr<winui::Core::IKeyEventArgs> event_args;
 920         event_args = mswr::Make<KeyEvent>(msg);
 921         KeyEventHandler* handler = NULL;
 922         if (msg.message == WM_KEYDOWN) {
 923           handler = key_down_handler_;
 924         } else {
 925           handler = key_up_handler_;
 926         }
 927         handler->Invoke(this, event_args.Get());
 928         break;
 929       }
 930
 931       case WM_CHAR:
 932       case WM_DEADCHAR:
 933       case WM_UNICHAR: {
 934         mswr::ComPtr<winui::Core::ICharacterReceivedEventArgs> event_args;
 935         event_args = mswr::Make<KeyEvent>(msg);
 936         character_received_handler_->Invoke(this, event_args.Get());
 937         break;
 938       }
 939
 940       default:
 941         return false;
 942     }
 943     return true;
 944   }
 945
 946   virtual bool HandleMouseMessage(const MSG& msg) OVERRIDE {
 947     PointerEventHandler* handler = NULL;
 948     mswr::ComPtr<winui::Core::IPointerEventArgs> event_args;
 949     event_args = mswr::Make<MouseEvent>(msg);
 950     switch (msg.message) {
 951       case WM_MOUSEMOVE: {
 952         handler = mouse_moved_handler_;
 953         break;
 954       }
 955       case WM_LBUTTONDOWN: {
 956       case WM_RBUTTONDOWN:
 957       case WM_MBUTTONDOWN:
 958         handler = mouse_pressed_handler_;
 959         break;
 960       }
 961
 962       case WM_LBUTTONUP: {
 963       case WM_RBUTTONUP:
 964       case WM_MBUTTONUP:
 965         handler = mouse_released_handler_;
 966         break;
 967       }
 968
 969       case WM_MOUSEWHEEL: {
 970       case WM_MOUSEHWHEEL:
 971         handler = mouse_wheel_changed_handler_;
 972         break;
 973       }
 974
 975       default:
 976         return false;
 977     }
 978     DCHECK(handler);
 979     handler->Invoke(this, event_args.Get());
 980     return true;
 981   }
 982
 983   void OnWindowActivated() {
 984     if (window_activated_handler_)
 985       window_activated_handler_->Invoke(this, NULL);
 986   }
 987
 988  private:
 989    PointerEventHandler* mouse_moved_handler_;
 990    PointerEventHandler* mouse_capture_lost_handler_;
 991    PointerEventHandler* mouse_pressed_handler_;
 992    PointerEventHandler* mouse_released_handler_;
 993    PointerEventHandler* mouse_entered_handler_;
 994    PointerEventHandler* mouse_exited_handler_;
 995    PointerEventHandler* mouse_wheel_changed_handler_;
 996    KeyEventHandler* key_down_handler_;
 997    KeyEventHandler* key_up_handler_;
 998    CharEventHandler* character_received_handler_;
 999    HWND core_hwnd_;
1000    mswr::ComPtr<winui::Core::ICoreDispatcher> dispatcher_;
1001    mswr::ComPtr<winapp::Core::IFrameworkView> app_view_;
1002    WindowActivatedHandler* window_activated_handler_;
1003 };
1004
1005 LRESULT CALLBACK WndProc(HWND hwnd, UINT message,
1006                          WPARAM wparam, LPARAM lparam) {
1007   PAINTSTRUCT ps;
1008   HDC hdc;
1009   switch (message) {
1010     case WM_ACTIVATE: {
1011       // HIWORD(wparam) is 1 if the window is minimized.
1012       bool active = (LOWORD(wparam) != WA_INACTIVE) && !HIWORD(wparam);
1013       if (active) {
1014         CoreWindowEmulation* core_window_handler =
1015             reinterpret_cast<CoreWindowEmulation*>(
1016                 ::GetProp(hwnd, kAshWin7CoreWindowHandler));
1017         if (core_window_handler)
1018           core_window_handler->OnWindowActivated();
1019       }
1020       return ::DefWindowProc(hwnd, message, wparam, lparam);
1021     }
1022     case WM_CREATE:
1023       ++g_window_count;
1024       break;
1025     case WM_PAINT:
1026       hdc = ::BeginPaint(hwnd, &ps);
1027       ::EndPaint(hwnd, &ps);
1028       break;
1029     case WM_CLOSE:
1030       ::DestroyWindow(hwnd);
1031       break;
1032     case WM_DESTROY:
1033       --g_window_count;
1034       if (!g_window_count)
1035         ::PostQuitMessage(0);
1036       break;
1037     // Always allow Chrome to set the cursor.
1038     case WM_SETCURSOR:
1039       return 1;
1040     default:
1041       return ::DefWindowProc(hwnd, message, wparam, lparam);
1042   }
1043   return 0;
1044 }
1045
1046 class ActivatedEvent
1047     : public mswr::RuntimeClass<winapp::Activation::IActivatedEventArgs> {
1048  public:
1049   ActivatedEvent(winapp::Activation::ActivationKind activation_kind)
1050     : activation_kind_(activation_kind) {
1051   }
1052
1053   virtual HRESULT STDMETHODCALLTYPE get_Kind(
1054     winapp::Activation::ActivationKind *value) {
1055     *value = activation_kind_;
1056     return S_OK;
1057   }
1058
1059   virtual HRESULT STDMETHODCALLTYPE get_PreviousExecutionState(
1060     winapp::Activation::ApplicationExecutionState *value) {
1061     *value = winapp::Activation::ApplicationExecutionState_ClosedByUser;
1062     return S_OK;
1063   }
1064
1065   virtual HRESULT STDMETHODCALLTYPE get_SplashScreen(
1066     winapp::Activation::ISplashScreen **value) {
1067     return E_FAIL;
1068   }
1069
1070  private:
1071   winapp::Activation::ActivationKind activation_kind_;
1072 };
1073
1074 class CoreApplicationViewEmulation
1075     : public mswr::RuntimeClass<winapp::Core::ICoreApplicationView> {
1076  public:
1077    CoreApplicationViewEmulation(winapp::Core::IFrameworkView* app_view) {
1078       core_window_ = mswr::Make<CoreWindowEmulation>(app_view);
1079    }
1080
1081   HRESULT Activate() {
1082     if (activated_handler_) {
1083       auto ae = mswr::Make<ActivatedEvent>(
1084         winapp::Activation::ActivationKind_File);
1085       return activated_handler_->Invoke(this, ae.Get());
1086     } else {
1087       return S_OK;
1088     }
1089   }
1090
1091   HRESULT Close() {
1092     return core_window_->Close();
1093   }
1094
1095   // ICoreApplicationView implementation:
1096   virtual HRESULT STDMETHODCALLTYPE get_CoreWindow(
1097     winui::Core::ICoreWindow** value) {
1098     if (!core_window_)
1099       return E_FAIL;
1100     return core_window_.CopyTo(value);
1101   }
1102
1103   virtual HRESULT STDMETHODCALLTYPE add_Activated(
1104      ActivatedHandler* handler,
1105     EventRegistrationToken* token) {
1106     // The real component supports multiple handles but we don't yet.
1107     if (activated_handler_)
1108       return E_FAIL;
1109     activated_handler_ = handler;
1110     return S_OK;
1111   }
1112
1113   virtual HRESULT STDMETHODCALLTYPE remove_Activated(
1114     EventRegistrationToken token) {
1115     // Chrome never unregisters handlers, so we don't care about it.
1116     return S_OK;
1117   }
1118
1119   virtual HRESULT STDMETHODCALLTYPE get_IsMain(
1120     boolean* value) {
1121     return S_OK;
1122   }
1123
1124   virtual HRESULT STDMETHODCALLTYPE get_IsHosted(
1125     boolean* value) {
1126     return S_OK;
1127   }
1128
1129  private:
1130   mswr::ComPtr<CoreWindowEmulation> core_window_;
1131   mswr::ComPtr<ActivatedHandler> activated_handler_;
1132 };
1133
1134 class CoreApplicationWin7Emulation
1135     : public mswr::RuntimeClass<winapp::Core::ICoreApplication,
1136                                 winapp::Core::ICoreApplicationExit> {
1137  public:
1138    // ICoreApplication implementation:
1139
1140   virtual HRESULT STDMETHODCALLTYPE get_Id(
1141       HSTRING* value) {
1142     return S_OK;
1143   }
1144
1145   virtual HRESULT STDMETHODCALLTYPE add_Suspending(
1146       winfoundtn::IEventHandler<winapp::SuspendingEventArgs*>* handler,
1147       EventRegistrationToken* token) {
1148     return S_OK;
1149   }
1150
1151   virtual HRESULT STDMETHODCALLTYPE remove_Suspending(
1152       EventRegistrationToken token) {
1153     return S_OK;
1154   }
1155
1156   virtual HRESULT STDMETHODCALLTYPE add_Resuming(
1157        winfoundtn::IEventHandler<IInspectable*>* handler,
1158       EventRegistrationToken* token) {
1159     return S_OK;
1160   }
1161
1162   virtual HRESULT STDMETHODCALLTYPE remove_Resuming(
1163       EventRegistrationToken token) {
1164     return S_OK;
1165   }
1166
1167   virtual HRESULT STDMETHODCALLTYPE get_Properties(
1168       winfoundtn::Collections::IPropertySet** value) {
1169     return S_OK;
1170   }
1171
1172   virtual HRESULT STDMETHODCALLTYPE GetCurrentView(
1173       winapp::Core::ICoreApplicationView** value) {
1174     return S_OK;
1175   }
1176
1177   virtual HRESULT STDMETHODCALLTYPE Run(
1178       winapp::Core::IFrameworkViewSource* viewSource) {
1179     HRESULT hr = viewSource->CreateView(app_view_.GetAddressOf());
1180     if (FAILED(hr))
1181       return hr;
1182     view_emulation_ = mswr::Make<CoreApplicationViewEmulation>(
1183         app_view_.Get());
1184     hr = app_view_->Initialize(view_emulation_.Get());
1185     if (FAILED(hr))
1186       return hr;
1187     mswr::ComPtr<winui::Core::ICoreWindow> core_window;
1188     hr = view_emulation_->get_CoreWindow(core_window.GetAddressOf());
1189     if (FAILED(hr))
1190       return hr;
1191     hr = app_view_->SetWindow(core_window.Get());
1192     if (FAILED(hr))
1193       return hr;
1194     hr = app_view_->Load(NULL);
1195     if (FAILED(hr))
1196       return hr;
1197     hr = view_emulation_->Activate();
1198     if (FAILED(hr))
1199       return hr;
1200     return app_view_->Run();
1201   }
1202
1203   virtual HRESULT STDMETHODCALLTYPE RunWithActivationFactories(
1204       winfoundtn::IGetActivationFactory* activationFactoryCallback) {
1205     return S_OK;
1206   }
1207
1208   // ICoreApplicationExit implementation:
1209
1210   virtual HRESULT STDMETHODCALLTYPE Exit(void) {
1211     return view_emulation_->Close();
1212   }
1213
1214   virtual HRESULT STDMETHODCALLTYPE add_Exiting(
1215        winfoundtn::IEventHandler<IInspectable*>* handler,
1216       EventRegistrationToken* token) {
1217     return S_OK;
1218   }
1219
1220   virtual HRESULT STDMETHODCALLTYPE remove_Exiting(
1221       EventRegistrationToken token) {
1222     return S_OK;
1223   }
1224
1225  private:
1226   mswr::ComPtr<winapp::Core::IFrameworkView> app_view_;
1227   mswr::ComPtr<CoreApplicationViewEmulation> view_emulation_;
1228 };
1229
1230
1231 mswr::ComPtr<winapp::Core::ICoreApplication> InitWindows7() {
1232   HRESULT hr = ::CoInitializeEx(NULL, COINIT_MULTITHREADED);
1233   if (FAILED(hr))
1234     CHECK(false);
1235   return mswr::Make<CoreApplicationWin7Emulation>();
1236 }
1237