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// 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_H_
#define WIN8_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/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"
namespace IPC {
class Listener;
class ChannelProxy;
}
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);
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);
// Returns the current view state of the chrome window.
winui::ViewManagement::ApplicationViewState GetViewState();
HWND core_window_hwnd() { return core_window_hwnd_; }
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_;
// The actual window behind the view surface.
HWND core_window_hwnd_;
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_;
};
// Global information used across the metro driver.
struct Globals {
LPTHREAD_START_ROUTINE host_main;
void* host_context;
// 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;
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;
string16 metro_command_line_switches;
};
extern Globals globals;
#endif // WIN8_METRO_DRIVER_CHROME_APP_VIEW_H_
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