Integrate the Windows 8 code into the Chromium tree.

win8/metro_driver/chrome_app_view.h

+// 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 CHROME_BROWSER_UI_METRO_DRIVER_CHROME_APP_VIEW_H_
+#define CHROME_BROWSER_UI_METRO_DRIVER_CHROME_APP_VIEW_H_
+
+#include <windows.applicationmodel.core.h>
+#include <windows.ui.core.h>
+#include <windows.ui.input.h>
+#include <windows.ui.viewmanagement.h>
+
+#include <list>
+#include <map>
+#include <string>
+#include <utility>
+
+#include "base/memory/scoped_ptr.h"
+#include "base/message_loop.h"
+#include "base/synchronization/lock.h"
+#include "win8/metro_driver/chrome_url_launch_handler.h"
+#include "win8/metro_driver/devices_handler.h"
+#include "win8/metro_driver/metro_dialog_box.h"
+#include "win8/metro_driver/settings_handler.h"
+#include "win8/metro_driver/toast_notification_handler.h"
+
+class ChromeAppView
+    : public mswr::RuntimeClass<winapp::Core::IFrameworkView> {
+ public:
+  ChromeAppView();
+  ~ChromeAppView();
+
+  // IViewProvider overrides.
+  IFACEMETHOD(Initialize)(winapp::Core::ICoreApplicationView* view);
+  IFACEMETHOD(SetWindow)(winui::Core::ICoreWindow* window);
+  IFACEMETHOD(Load)(HSTRING entryPoint);
+  IFACEMETHOD(Run)();
+  IFACEMETHOD(Uninitialize)();
+
+  static LRESULT CALLBACK CoreWindowProc(HWND window, UINT message, WPARAM wp,
+                                         LPARAM lp);
+
+  HRESULT TileRequestCreateDone(winfoundtn::IAsyncOperation<bool>* async,
+                                AsyncStatus status);
+
+  bool osk_visible_notification_received() const {
+    return osk_visible_notification_received_;
+  }
+
+  // Displays the notification.
+  void DisplayNotification(
+      const ToastNotificationHandler::DesktopNotification& notification);
+
+  // Cancels the notification.
+  void CancelNotification(const std::string& notification);
+
+  // Returns true if the notification passed in is valid.
+  bool IsValidNotification(const std::string& notification);
+
+  // Displays a dialog box.
+  void ShowDialogBox(const MetroDialogBox::DialogBoxInfo& dialog_box_info);
+  // Dismisses the dialog box.
+  void DismissDialogBox();
+
+  // Helper function to unsnap the chrome metro app if it is snapped.
+  // Returns S_OK on success.
+  static HRESULT Unsnap();
+
+  // Notification from chrome that a full screen operation is being performed.
+  void SetFullscreen(bool fullscreen);
+
+ private:
+  HRESULT OnActivate(winapp::Core::ICoreApplicationView* view,
+                     winapp::Activation::IActivatedEventArgs* args);
+
+  HRESULT OnSizeChanged(winui::Core::ICoreWindow* sender,
+                        winui::Core::IWindowSizeChangedEventArgs* args);
+
+  HRESULT OnEdgeGestureCompleted(winui::Input::IEdgeGesture* gesture,
+                                 winui::Input::IEdgeGestureEventArgs* args);
+
+  HRESULT OnShareDataRequested(
+      winapp::DataTransfer::IDataTransferManager* data_transfer_mgr,
+      winapp::DataTransfer::IDataRequestedEventArgs* event_args);
+
+  HRESULT OnInputPaneVisible(
+      winui::ViewManagement::IInputPane* input_pane,
+      winui::ViewManagement::IInputPaneVisibilityEventArgs* event_args);
+
+  HRESULT OnInputPaneHiding(
+    winui::ViewManagement::IInputPane* input_pane,
+    winui::ViewManagement::IInputPaneVisibilityEventArgs* event_args);
+
+  HRESULT OnPositionChanged(int x, int y);
+
+  void CheckForOSKActivation();
+
+  HRESULT RegisterInputPaneNotifications();
+
+  void HandleInputPaneVisible(const RECT& osk_rect);
+  void HandleInputPaneHidden(const RECT& osk_rect);
+
+  mswr::ComPtr<winui::Core::ICoreWindow> window_;
+  mswr::ComPtr<winapp::Core::ICoreApplicationView> view_;
+  EventRegistrationToken activated_token_;
+  EventRegistrationToken edgeevent_token_;
+  EventRegistrationToken sizechange_token_;
+  EventRegistrationToken share_data_requested_token_;
+  EventRegistrationToken input_pane_visible_token_;
+  EventRegistrationToken input_pane_hiding_token_;
+  EventRegistrationToken app_exit_token_;
+
+  ChromeUrlLaunchHandler url_launch_handler_;
+  metro_driver::DevicesHandler devices_handler_;
+  SettingsHandler settings_handler_;
+  mswr::ComPtr<winui::ViewManagement::IInputPane> input_pane_;
+  mswr::ComPtr<winui::ViewManagement::IApplicationViewStatics> app_view_;
+
+  bool osk_visible_notification_received_;
+
+  // map of notification id to the ToastNotificationHandler instance.
+  typedef std::map<std::string, scoped_ptr<ToastNotificationHandler> >
+      NotificationMap;
+  NotificationMap notification_map_;
+
+  // Synchronizes access to the notification_map_ member.
+  base::Lock notification_lock_;
+
+  // If the OSK covers the input area we scroll the window by the height of the
+  // OSK + an additional offset. This member holds this offset. Set to 0 if the
+  // window was not scrolled.
+  int osk_offset_adjustment_;
+
+  MetroDialogBox dialog_box_;
+};
+
+class ChromeAppViewFactory
+    : public mswr::RuntimeClass<winapp::Core::IFrameworkViewSource> {
+ public:
+  ChromeAppViewFactory(winapp::Core::ICoreApplication* icore_app,
+                       LPTHREAD_START_ROUTINE host_main,
+                       void* host_context);
+  IFACEMETHOD(CreateView)(winapp::Core::IFrameworkView** view);
+};
+
+// This function is exported by chrome.exe.
+typedef int (__cdecl *BreakpadExceptionHandler)(EXCEPTION_POINTERS* info);
+
+// Global information used across the metro driver.
+struct Globals {
+  LPTHREAD_START_ROUTINE host_main;
+  void* host_context;
+  HWND core_window;
+  // The pair below contains the HWND and a bool which indicates whether the
+  // window was displaced to ensure that the focused region is visible when
+  // the OSK is displayed.
+  std::list<std::pair<HWND, bool> > host_windows;
+  HANDLE host_thread;
+  DWORD main_thread_id;
+  ChromeAppView* view;
+  WNDPROC g_core_proc;
+  string16 navigation_url;
+  string16 search_string;
+  winapp::Activation::ApplicationExecutionState previous_state;
+  winapp::Activation::ActivationKind initial_activation_kind;
+  bool is_initial_activation;
+  // This message loop lives in the app view's thread. Some operations have
+  // to be initiated from that thread, notably spawning file pickers.
+  base::MessageLoopProxy* appview_msg_loop;
+  winapp::Core::ICoreApplicationExit* app_exit;
+  BreakpadExceptionHandler breakpad_exception_handler;
+  string16 metro_command_line_switches;
+};
+
+extern Globals globals;
+
+#endif  // CHROME_BROWSER_UI_METRO_DRIVER_CHROME_APP_VIEW_H_