win8/metro_driver/chrome_app_view_ash.h

   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 #ifndef WIN8_METRO_DRIVER_CHROME_APP_VIEW_ASH_H_
   6 #define WIN8_METRO_DRIVER_CHROME_APP_VIEW_ASH_H_
   7
   8 #include <windows.applicationmodel.core.h>
   9 #include <windows.ui.core.h>
  10 #include <windows.ui.input.h>
  11 #include <windows.ui.viewmanagement.h>
  12
  13 #include "base/files/file_path.h"
  14 #include "base/memory/scoped_ptr.h"
  15 #include "base/message_loop/message_loop.h"
  16 #include "base/strings/string16.h"
  17 #include "ui/base/events/event_constants.h"
  18 #include "win8/metro_driver/direct3d_helper.h"
  19
  20 namespace IPC {
  21   class Listener;
  22   class ChannelProxy;
  23 }
  24
  25 class OpenFilePickerSession;
  26 class SaveFilePickerSession;
  27 class FolderPickerSession;
  28 class FilePickerSessionBase;
  29
  30 struct MetroViewerHostMsg_SaveAsDialogParams;
  31
  32 class ChromeAppViewAsh
  33     : public mswr::RuntimeClass<winapp::Core::IFrameworkView> {
  34  public:
  35   ChromeAppViewAsh();
  36   ~ChromeAppViewAsh();
  37
  38   // IViewProvider overrides.
  39   IFACEMETHOD(Initialize)(winapp::Core::ICoreApplicationView* view);
  40   IFACEMETHOD(SetWindow)(winui::Core::ICoreWindow* window);
  41   IFACEMETHOD(Load)(HSTRING entryPoint);
  42   IFACEMETHOD(Run)();
  43   IFACEMETHOD(Uninitialize)();
  44
  45   // Helper function to unsnap the chrome metro app if it is snapped.
  46   // Returns S_OK on success.
  47   static HRESULT Unsnap();
  48
  49   void OnSetCursor(HCURSOR cursor);
  50   void OnDisplayFileOpenDialog(const string16& title,
  51                                const string16& filter,
  52                                const base::FilePath& default_path,
  53                                bool allow_multiple_files);
  54   void OnDisplayFileSaveAsDialog(
  55       const MetroViewerHostMsg_SaveAsDialogParams& params);
  56   void OnDisplayFolderPicker(const string16& title);
  57   void OnSetCursorPos(int x, int y);
  58
  59   // This function is invoked when the open file operation completes. The
  60   // result of the operation is passed in along with the OpenFilePickerSession
  61   // instance which is deleted after we read the required information from
  62   // the OpenFilePickerSession class.
  63   void OnOpenFileCompleted(OpenFilePickerSession* open_file_picker,
  64                            bool success);
  65
  66   // This function is invoked when the save file operation completes. The
  67   // result of the operation is passed in along with the SaveFilePickerSession
  68   // instance which is deleted after we read the required information from
  69   // the SaveFilePickerSession class.
  70   void OnSaveFileCompleted(SaveFilePickerSession* save_file_picker,
  71                            bool success);
  72
  73   // This function is invoked when the folder picker operation completes. The
  74   // result of the operation is passed in along with the FolderPickerSession
  75   // instance which is deleted after we read the required information from
  76   // the FolderPickerSession class.
  77   void OnFolderPickerCompleted(FolderPickerSession* folder_picker,
  78                                bool success);
  79
  80  private:
  81   HRESULT OnActivate(winapp::Core::ICoreApplicationView* view,
  82                      winapp::Activation::IActivatedEventArgs* args);
  83
  84   HRESULT OnPointerMoved(winui::Core::ICoreWindow* sender,
  85                          winui::Core::IPointerEventArgs* args);
  86
  87   HRESULT OnPointerPressed(winui::Core::ICoreWindow* sender,
  88                            winui::Core::IPointerEventArgs* args);
  89
  90   HRESULT OnPointerReleased(winui::Core::ICoreWindow* sender,
  91                             winui::Core::IPointerEventArgs* args);
  92
  93   HRESULT OnWheel(winui::Core::ICoreWindow* sender,
  94                   winui::Core::IPointerEventArgs* args);
  95
  96   HRESULT OnKeyDown(winui::Core::ICoreWindow* sender,
  97                     winui::Core::IKeyEventArgs* args);
  98
  99   HRESULT OnKeyUp(winui::Core::ICoreWindow* sender,
 100                   winui::Core::IKeyEventArgs* args);
 101
 102   // Invoked for system keys like Alt, etc.
 103   HRESULT OnAcceleratorKeyDown(winui::Core::ICoreDispatcher* sender,
 104                                winui::Core::IAcceleratorKeyEventArgs* args);
 105
 106   HRESULT OnCharacterReceived(winui::Core::ICoreWindow* sender,
 107                               winui::Core::ICharacterReceivedEventArgs* args);
 108
 109   HRESULT OnVisibilityChanged(winui::Core::ICoreWindow* sender,
 110                               winui::Core::IVisibilityChangedEventArgs* args);
 111
 112   HRESULT OnWindowActivated(winui::Core::ICoreWindow* sender,
 113                             winui::Core::IWindowActivatedEventArgs* args);
 114
 115   // Helper to handle search requests received via the search charm in ASH.
 116   HRESULT HandleSearchRequest(winapp::Activation::IActivatedEventArgs* args);
 117   // Helper to handle http/https url requests in ASH.
 118   HRESULT HandleProtocolRequest(winapp::Activation::IActivatedEventArgs* args);
 119
 120   // Tasks posted to the UI thread to initiate the search/url navigation
 121   // requests.
 122   void OnSearchRequest(const string16& search_string);
 123   void OnNavigateToUrl(const string16& url);
 124
 125   HRESULT OnSizeChanged(winui::Core::ICoreWindow* sender,
 126                         winui::Core::IWindowSizeChangedEventArgs* args);
 127
 128   mswr::ComPtr<winui::Core::ICoreWindow> window_;
 129   mswr::ComPtr<winapp::Core::ICoreApplicationView> view_;
 130   EventRegistrationToken activated_token_;
 131   EventRegistrationToken pointermoved_token_;
 132   EventRegistrationToken pointerpressed_token_;
 133   EventRegistrationToken pointerreleased_token_;
 134   EventRegistrationToken wheel_token_;
 135   EventRegistrationToken keydown_token_;
 136   EventRegistrationToken keyup_token_;
 137   EventRegistrationToken character_received_token_;
 138   EventRegistrationToken visibility_changed_token_;
 139   EventRegistrationToken accel_keydown_token_;
 140   EventRegistrationToken accel_keyup_token_;
 141   EventRegistrationToken window_activated_token_;
 142   EventRegistrationToken sizechange_token_;
 143
 144   // Keep state about which button is currently down, if any, as PointerMoved
 145   // events do not contain that state, but Ash's MouseEvents need it.
 146   ui::EventFlags mouse_down_flags_;
 147
 148   // Set the D3D swap chain and nothing else.
 149   metro_driver::Direct3DHelper direct3d_helper_;
 150
 151   // The channel to Chrome, in particular to the MetroViewerProcessHost.
 152   IPC::ChannelProxy* ui_channel_;
 153
 154   // The actual window behind the view surface.
 155   HWND core_window_hwnd_;
 156
 157   // UI message loop to allow message passing into this thread.
 158   base::MessageLoop ui_loop_;
 159 };
 160
 161 #endif  // WIN8_METRO_DRIVER_CHROME_APP_VIEW_ASH_H_