ui/aura/remote_root_window_host_win.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 UI_AURA_REMOTE_ROOT_WINDOW_HOST_WIN_H_
   6 #define UI_AURA_REMOTE_ROOT_WINDOW_HOST_WIN_H_
   7
   8 #include <vector>
   9
  10 #include "base/callback.h"
  11 #include "base/compiler_specific.h"
  12 #include "base/string16.h"
  13 #include "ui/aura/root_window_host.h"
  14 #include "ui/base/events/event_constants.h"
  15 #include "ui/gfx/native_widget_types.h"
  16
  17 namespace base {
  18 class FilePath;
  19 }
  20
  21 namespace ui {
  22 class ViewProp;
  23 }
  24
  25 namespace IPC {
  26 class Message;
  27 class Sender;
  28 }
  29
  30 namespace aura {
  31
  32 typedef base::Callback<void(const base::FilePath&, int, void*)>
  33     OpenFileCompletion;
  34
  35 typedef base::Callback<void(const std::vector<base::FilePath>&, void*)>
  36     OpenMultipleFilesCompletion;
  37
  38 typedef base::Callback<void(const base::FilePath&, int, void*)>
  39     SaveFileCompletion;
  40
  41 // Handles the open file operation for Metro Chrome Ash. The callback passed in
  42 // is invoked when we receive the opened file name from the metro viewer.
  43 AURA_EXPORT void HandleOpenFile(
  44     const string16& title,
  45     const base::FilePath& default_path,
  46     const string16& filter,
  47     const OpenFileCompletion& callback);
  48
  49 // Handles the open multiple file operation for Metro Chrome Ash. The callback
  50 // passed in is invoked when we receive the opened file names from the metro
  51 // viewer.
  52 AURA_EXPORT void HandleOpenMultipleFiles(
  53     const string16& title,
  54     const base::FilePath& default_path,
  55     const string16& filter,
  56     const OpenMultipleFilesCompletion& callback);
  57
  58 // Handles the save file operation for Metro Chrome Ash. The callback passed in
  59 // is invoked when we receive the saved file name from the metro viewer.
  60 AURA_EXPORT void HandleSaveFile(
  61     const string16& title,
  62     const base::FilePath& default_path,
  63     const string16& filter,
  64     int filter_index,
  65     const string16& default_extension,
  66     const SaveFileCompletion& callback);
  67
  68
  69 // RootWindowHost implementaton that receives events from a different
  70 // process. In the case of Windows this is the Windows 8 (aka Metro)
  71 // frontend process, which forwards input events to this class.
  72 class AURA_EXPORT RemoteRootWindowHostWin : public RootWindowHost {
  73  public:
  74   static RemoteRootWindowHostWin* Instance();
  75   static RemoteRootWindowHostWin* Create(const gfx::Rect& bounds);
  76
  77   // Called when the remote process has established its IPC connection.
  78   // The |host| can be used when we need to send a message to it.
  79   void Connected(IPC::Sender* host);
  80   // Called when the remote process has closed its IPC connection.
  81   void Disconnected();
  82
  83   // Called when we have a message from the remote process.
  84   bool OnMessageReceived(const IPC::Message& message);
  85
  86   void HandleOpenFile(
  87       const string16& title,
  88       const base::FilePath& default_path,
  89       const string16& filter,
  90       const OpenFileCompletion& callback);
  91
  92   void HandleOpenMultipleFiles(
  93       const string16& title,
  94       const base::FilePath& default_path,
  95       const string16& filter,
  96       const OpenMultipleFilesCompletion& callback);
  97
  98   void HandleSaveFile(
  99       const string16& title,
 100       const base::FilePath& default_path,
 101       const string16& filter,
 102       int filter_index,
 103       const string16& default_extension,
 104       const SaveFileCompletion& callback);
 105
 106  private:
 107   explicit RemoteRootWindowHostWin(const gfx::Rect& bounds);
 108   virtual ~RemoteRootWindowHostWin();
 109
 110   // IPC message handing methods:
 111   void OnMouseMoved(int32 x, int32 y, int32 flags);
 112   void OnMouseButton(int32 x,
 113                      int32 y,
 114                      int32 extra,
 115                      ui::EventType type,
 116                      ui::EventFlags flags);
 117   void OnKeyDown(uint32 vkey,
 118                  uint32 repeat_count,
 119                  uint32 scan_code,
 120                  uint32 flags);
 121   void OnKeyUp(uint32 vkey,
 122                uint32 repeat_count,
 123                uint32 scan_code,
 124                uint32 flags);
 125   void OnChar(uint32 key_code,
 126               uint32 repeat_count,
 127               uint32 scan_code,
 128               uint32 flags);
 129   void OnVisibilityChanged(bool visible);
 130   void OnTouchDown(int32 x, int32 y, uint64 timestamp, uint32 pointer_id);
 131   void OnTouchUp(int32 x, int32 y, uint64 timestamp, uint32 pointer_id);
 132   void OnTouchMoved(int32 x, int32 y, uint64 timestamp, uint32 pointer_id);
 133   void OnFileSaveAsDone(bool success,
 134                         string16 filename,
 135                         int filter_index);
 136   void OnFileOpenDone(bool success, string16 filename);
 137   void OnMultiFileOpenDone(bool success,
 138                            const std::vector<base::FilePath>& files);
 139
 140   // RootWindowHost overrides:
 141   virtual void SetDelegate(RootWindowHostDelegate* delegate) OVERRIDE;
 142   virtual RootWindow* GetRootWindow() OVERRIDE;
 143   virtual gfx::AcceleratedWidget GetAcceleratedWidget() OVERRIDE;
 144   virtual void Show() OVERRIDE;
 145   virtual void Hide() OVERRIDE;
 146   virtual void ToggleFullScreen() OVERRIDE;
 147   virtual gfx::Rect GetBounds() const OVERRIDE;
 148   virtual void SetBounds(const gfx::Rect& bounds) OVERRIDE;
 149   virtual gfx::Insets GetInsets() const OVERRIDE;
 150   virtual void SetInsets(const gfx::Insets& insets) OVERRIDE;
 151   virtual gfx::Point GetLocationOnNativeScreen() const OVERRIDE;
 152   virtual void SetCapture() OVERRIDE;
 153   virtual void ReleaseCapture() OVERRIDE;
 154   virtual void SetCursor(gfx::NativeCursor cursor) OVERRIDE;
 155   virtual bool QueryMouseLocation(gfx::Point* location_return) OVERRIDE;
 156   virtual bool ConfineCursorToRootWindow() OVERRIDE;
 157   virtual void UnConfineCursor() OVERRIDE;
 158   virtual void OnCursorVisibilityChanged(bool show) OVERRIDE;
 159   virtual void MoveCursorTo(const gfx::Point& location) OVERRIDE;
 160   virtual void SetFocusWhenShown(bool focus_when_shown) OVERRIDE;
 161   virtual bool CopyAreaToSkCanvas(const gfx::Rect& source_bounds,
 162                                   const gfx::Point& dest_offset,
 163                                   SkCanvas* canvas) OVERRIDE;
 164   virtual bool GrabSnapshot(
 165       const gfx::Rect& snapshot_bounds,
 166       std::vector<unsigned char>* png_representation) OVERRIDE;
 167   virtual void PostNativeEvent(const base::NativeEvent& native_event) OVERRIDE;
 168   virtual void OnDeviceScaleFactorChanged(float device_scale_factor) OVERRIDE;
 169   virtual void PrepareForShutdown() OVERRIDE;
 170
 171   // Helper function to dispatch a keyboard message to the desired target.
 172   // The default target is the RootWindowHostDelegate. For nested message loop
 173   // invocations we post a synthetic keyboard message directly into the message
 174   // loop. The dispatcher for the nested loop would then decide how this
 175   // message is routed.
 176   void DispatchKeyboardMessage(ui::EventType type,
 177                                uint32 vkey,
 178                                uint32 repeat_count,
 179                                uint32 scan_code,
 180                                uint32 flags,
 181                                bool is_character);
 182
 183   RootWindowHostDelegate* delegate_;
 184   IPC::Sender* host_;
 185   scoped_ptr<ui::ViewProp> prop_;
 186
 187   // Saved callbacks which inform the caller about the result of the open file/
 188   // save file operations.
 189   OpenFileCompletion file_open_completion_callback_;
 190   OpenMultipleFilesCompletion multi_file_open_completion_callback_;
 191   SaveFileCompletion file_saveas_completion_callback_;
 192
 193   DISALLOW_COPY_AND_ASSIGN(RemoteRootWindowHostWin);
 194 };
 195
 196 }  // namespace aura
 197
 198 #endif  // UI_AURA_REMOTE_ROOT_WINDOW_HOST_WIN_H_