Reland of move remote tree host and some related input and metro_driver code

win8/metro_driver/chrome_app_view_ash.h

Index: win8/metro_driver/chrome_app_view_ash.h
diff --git a/win8/metro_driver/chrome_app_view_ash.h b/win8/metro_driver/chrome_app_view_ash.h
deleted file mode 100644
index ffe1d7e203d5fd2efc10c72cba0f28b0541c018f..0000000000000000000000000000000000000000
--- a/win8/metro_driver/chrome_app_view_ash.h
+++ /dev/null
@@ -1,262 +0,0 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef WIN8_METRO_DRIVER_CHROME_APP_VIEW_ASH_H_
-#define WIN8_METRO_DRIVER_CHROME_APP_VIEW_ASH_H_
-
-#include <stdint.h>
-#include <windows.applicationmodel.core.h>
-#include <windows.ui.core.h>
-#include <windows.ui.input.h>
-#include <windows.ui.viewmanagement.h>
-
-#include "base/memory/scoped_ptr.h"
-#include "base/message_loop/message_loop.h"
-#include "base/strings/string16.h"
-#include "base/threading/thread.h"
-#include "ipc/ipc_listener.h"
-#include "ui/events/event_constants.h"
-#include "win8/metro_driver/direct3d_helper.h"
-#include "win8/metro_driver/ime/ime_popup_observer.h"
-#include "win8/metro_driver/ime/input_source_observer.h"
-#include "win8/metro_driver/ime/text_service_delegate.h"
-
-namespace base {
-class FilePath;
-}
-
-namespace IPC {
-class Listener;
-class ChannelProxy;
-}
-
-namespace metro_driver {
-class InputSource;
-class TextService;
-}
-
-namespace metro_viewer {
-struct CharacterBounds;
-struct UnderlineInfo;
-}
-
-class OpenFilePickerSession;
-class SaveFilePickerSession;
-class FolderPickerSession;
-class FilePickerSessionBase;
-
-struct MetroViewerHostMsg_SaveAsDialogParams;
-
-enum MetroTerminateMethod {
-  TERMINATE_USING_KEY_SEQUENCE = 1,
-  TERMINATE_USING_PROCESS_EXIT = 2,
-};
-
-class ChromeAppViewAsh
-    : public mswr::RuntimeClass<winapp::Core::IFrameworkView>,
-      public metro_driver::ImePopupObserver,
-      public metro_driver::InputSourceObserver,
-      public metro_driver::TextServiceDelegate {
- public:
-  ChromeAppViewAsh();
-  ~ChromeAppViewAsh() override;
-
-  // IViewProvider overrides.
-  IFACEMETHOD(Initialize)(winapp::Core::ICoreApplicationView* view) override;
-  IFACEMETHOD(SetWindow)(winui::Core::ICoreWindow* window) override;
-  IFACEMETHOD(Load)(HSTRING entryPoint) override;
-  IFACEMETHOD(Run)() override;
-  IFACEMETHOD(Uninitialize)() override;
-
-  // Helper function to unsnap the chrome metro app if it is snapped.
-  // Returns S_OK on success.
-  static HRESULT Unsnap();
-
-  void OnActivateDesktop(const base::FilePath& file_path, bool ash_exit);
-  void OnOpenURLOnDesktop(const base::FilePath& shortcut,
-                          const base::string16& url);
-  void OnSetCursor(HCURSOR cursor);
-  void OnDisplayFileOpenDialog(const base::string16& title,
-                               const base::string16& filter,
-                               const base::FilePath& default_path,
-                               bool allow_multiple_files);
-  void OnDisplayFileSaveAsDialog(
-      const MetroViewerHostMsg_SaveAsDialogParams& params);
-  void OnDisplayFolderPicker(const base::string16& title);
-  void OnSetCursorPos(int x, int y);
-
-  // This function is invoked when the open file operation completes. The
-  // result of the operation is passed in along with the OpenFilePickerSession
-  // instance which is deleted after we read the required information from
-  // the OpenFilePickerSession class.
-  void OnOpenFileCompleted(OpenFilePickerSession* open_file_picker,
-                           bool success);
-
-  // This function is invoked when the save file operation completes. The
-  // result of the operation is passed in along with the SaveFilePickerSession
-  // instance which is deleted after we read the required information from
-  // the SaveFilePickerSession class.
-  void OnSaveFileCompleted(SaveFilePickerSession* save_file_picker,
-                           bool success);
-
-  // This function is invoked when the folder picker operation completes. The
-  // result of the operation is passed in along with the FolderPickerSession
-  // instance which is deleted after we read the required information from
-  // the FolderPickerSession class.
-  void OnFolderPickerCompleted(FolderPickerSession* folder_picker,
-                               bool success);
-
-  void OnImeCancelComposition();
-  void OnImeUpdateTextInputClient(
-      const std::vector<int32_t>& input_scopes,
-      const std::vector<metro_viewer::CharacterBounds>& character_bounds);
-
-  void OnMetroExit(MetroTerminateMethod method);
-
-  HWND core_window_hwnd() const { return  core_window_hwnd_; }
-
-
- private:
-  class PointerInfoHandler;
-
-  // ImePopupObserver overrides.
-  void OnImePopupChanged(ImePopupObserver::EventType event) override;
-
-  // InputSourceObserver overrides.
-  void OnInputSourceChanged() override;
-
-  // TextServiceDelegate overrides.
-  void OnCompositionChanged(
-      const base::string16& text,
-      int32_t selection_start,
-      int32_t selection_end,
-      const std::vector<metro_viewer::UnderlineInfo>& underlines) override;
-  void OnTextCommitted(const base::string16& text) override;
-
-  // Convenience for sending a MetroViewerHostMsg_MouseButton with the specified
-  // parameters.
-  void SendMouseButton(int x,
-                       int y,
-                       int extra,
-                       ui::EventType event_type,
-                       uint32_t flags,
-                       ui::EventFlags changed_button,
-                       bool is_horizontal_wheel);
-
-  // Win8 only generates a mouse press for the initial button that goes down and
-  // a release when the last button is released. Any intermediary presses (or
-  // releases) do not result in a new press/release event. Instead a move is
-  // generated with the winui::Input::PointerUpdateKind identifying what
-  // changed. This function generates the necessary intermediary events (as
-  // necessary).
-  void GenerateMouseEventFromMoveIfNecessary(const PointerInfoHandler& pointer);
-
-  HRESULT OnActivate(winapp::Core::ICoreApplicationView* view,
-                     winapp::Activation::IActivatedEventArgs* args);
-
-  HRESULT OnPointerMoved(winui::Core::ICoreWindow* sender,
-                         winui::Core::IPointerEventArgs* args);
-
-  HRESULT OnPointerPressed(winui::Core::ICoreWindow* sender,
-                           winui::Core::IPointerEventArgs* args);
-
-  HRESULT OnPointerReleased(winui::Core::ICoreWindow* sender,
-                            winui::Core::IPointerEventArgs* args);
-
-  HRESULT OnWheel(winui::Core::ICoreWindow* sender,
-                  winui::Core::IPointerEventArgs* args);
-
-  HRESULT OnKeyDown(winui::Core::ICoreWindow* sender,
-                    winui::Core::IKeyEventArgs* args);
-
-  HRESULT OnKeyUp(winui::Core::ICoreWindow* sender,
-                  winui::Core::IKeyEventArgs* args);
-
-  // Invoked for system keys like Alt, etc.
-  HRESULT OnAcceleratorKeyDown(winui::Core::ICoreDispatcher* sender,
-                               winui::Core::IAcceleratorKeyEventArgs* args);
-
-  HRESULT OnCharacterReceived(winui::Core::ICoreWindow* sender,
-                              winui::Core::ICharacterReceivedEventArgs* args);
-
-  HRESULT OnWindowActivated(winui::Core::ICoreWindow* sender,
-                            winui::Core::IWindowActivatedEventArgs* args);
-
-  // Helper to handle search requests received via the search charm in ASH.
-  HRESULT HandleSearchRequest(winapp::Activation::IActivatedEventArgs* args);
-  // Helper to handle http/https url requests in ASH.
-  HRESULT HandleProtocolRequest(winapp::Activation::IActivatedEventArgs* args);
-
-  HRESULT OnEdgeGestureCompleted(winui::Input::IEdgeGesture* gesture,
-                                 winui::Input::IEdgeGestureEventArgs* args);
-
-  // Tasks posted to the UI thread to initiate the search/url navigation
-  // requests.
-  void OnSearchRequest(const base::string16& search_string);
-  void OnNavigateToUrl(const base::string16& url);
-
-  HRESULT OnSizeChanged(winui::Core::ICoreWindow* sender,
-                        winui::Core::IWindowSizeChangedEventArgs* args);
-
-  // This function checks if the Chrome browser channel is initialized. If yes
-  // then it goes ahead and starts up the viewer in Chrome OS mode. If not it
-  // posts a delayed task and checks again. It does this for a duration of 10
-  // seconds and then bails.
-  void StartChromeOSMode();
-
-  mswr::ComPtr<winui::Core::ICoreWindow> window_;
-  mswr::ComPtr<winapp::Core::ICoreApplicationView> view_;
-  EventRegistrationToken activated_token_;
-  EventRegistrationToken pointermoved_token_;
-  EventRegistrationToken pointerpressed_token_;
-  EventRegistrationToken pointerreleased_token_;
-  EventRegistrationToken wheel_token_;
-  EventRegistrationToken keydown_token_;
-  EventRegistrationToken keyup_token_;
-  EventRegistrationToken character_received_token_;
-  EventRegistrationToken accel_keydown_token_;
-  EventRegistrationToken accel_keyup_token_;
-  EventRegistrationToken window_activated_token_;
-  EventRegistrationToken sizechange_token_;
-  EventRegistrationToken edgeevent_token_;
-
-  // Keep state about which button is currently down, if any, as PointerMoved
-  // events do not contain that state, but Ash's MouseEvents need it. Value is
-  // as a bitmask of ui::EventFlags.
-  uint32_t mouse_down_flags_;
-
-  // Set the D3D swap chain and nothing else.
-  metro_driver::Direct3DHelper direct3d_helper_;
-
-  // The IPC channel IO thread.
-  scoped_ptr<base::Thread> io_thread_;
-
-  // The channel to Chrome, in particular to the MetroViewerProcessHost.
-  scoped_ptr<IPC::ChannelProxy> ui_channel_;
-
-  // The actual window behind the view surface.
-  HWND core_window_hwnd_;
-
-  // UI message loop to allow message passing into this thread.
-  base::MessageLoopForUI ui_loop_;
-
-  // For IME support.
-  scoped_ptr<metro_driver::InputSource> input_source_;
-  scoped_ptr<metro_driver::TextService> text_service_;
-
-  // The metro device scale factor as reported by the winrt interfaces.
-  float metro_dpi_scale_;
-  // The win32 dpi scale which is queried via GetDeviceCaps. Please refer to
-  // ui/gfx/win/dpi.cc for more information.
-  float win32_dpi_scale_;
-
-  // The cursor set by the chroem browser process.
-  HCURSOR last_cursor_;
-
-  // Pointer to the channel listener for the channel between the viewer and
-  // the browser.
-  IPC::Listener* channel_listener_;
-};
-
-#endif  // WIN8_METRO_DRIVER_CHROME_APP_VIEW_ASH_H_