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