genode/repos/os/src/server/nitpicker/user_state.h
2014-08-11 15:55:33 +02:00

93 lines
1.7 KiB
C++

/*
* \brief Nitpicker user state handling
* \author Norman Feske
* \date 2006-08-09
*
* This class comprehends the policy of user interaction.
* It manages the toggling of Nitpicker's different modes
* and routes input events to corresponding client sessions.
*/
/*
* Copyright (C) 2006-2013 Genode Labs GmbH
*
* This file is part of the Genode OS framework, which is distributed
* under the terms of the GNU General Public License version 2.
*/
#ifndef _USER_STATE_H_
#define _USER_STATE_H_
#include "mode.h"
#include "menubar.h"
#include "view_stack.h"
#include "global_keys.h"
class User_state : public Mode, public View_stack
{
private:
/*
* Policy for the routing of global keys
*/
Global_keys &_global_keys;
/*
* Menubar to display trusted labeling information
* according to the current Mitpicker mode and the
* focused session.
*/
Menubar &_menubar;
/*
* Current mouse cursor position
*/
Point _mouse_pos;
/*
* Currently pointed-at session
*/
Session *_pointed_session = nullptr;
/*
* Session that receives the current stream of input events
*/
Session *_input_receiver = nullptr;
/*
* True while a global key sequence is processed
*/
bool _global_key_sequence = false;
void _update_menubar();
void _update_all();
public:
/**
* Constructor
*/
User_state(Global_keys &, Area view_stack_size, Menubar &);
/**
* Handle input event
*
* This function controls the Nitpicker mode and the user state
* variables.
*/
void handle_event(Input::Event ev);
/**
* Accessors
*/
Point mouse_pos() { return _mouse_pos; }
/**
* Mode interface
*/
void forget(Session const &) override;
void focused_session(Session *) override;
};
#endif