98 lines
1.8 KiB
C++
98 lines
1.8 KiB
C++
/*
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* \brief Nitpicker user state handling
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* \author Norman Feske
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* \date 2006-08-09
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*
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* This class comprehends the policy of user interaction.
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* It manages the toggling of Nitpicker's different modes
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* and routes input events to corresponding client sessions.
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*/
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/*
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* Copyright (C) 2006-2013 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU General Public License version 2.
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*/
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#ifndef _USER_STATE_H_
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#define _USER_STATE_H_
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#include <nitpicker_gfx/canvas.h>
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#include "mode.h"
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#include "menubar.h"
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#include "view_stack.h"
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#include "global_keys.h"
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class User_state : public Mode, public View_stack
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{
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private:
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/*
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* Policy for the routing of global keys
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*/
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Global_keys &_global_keys;
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/*
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* Number of currently pressed keys.
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* This counter is used to determine if the user
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* is dragging an item.
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*/
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unsigned _key_cnt;
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/*
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* Menubar to display trusted labeling information
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* according to the current Mitpicker mode and the
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* focused view.
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*/
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Menubar &_menubar;
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/*
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* Current mouse cursor position
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*/
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Point _mouse_pos;
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/*
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* Currently pointed-at view
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*/
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View const *_pointed_view;
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/*
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* Session that receives the current stream of input events
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*/
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Session *_input_receiver;
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/*
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* True while a global key sequence is processed
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*/
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bool _global_key_sequence;
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public:
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/**
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* Constructor
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*/
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User_state(Global_keys &global_keys, Canvas &canvas, Menubar &menubar);
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/**
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* Handle input event
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*
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* This function controls the Nitpicker mode and the
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* user state variables.
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*/
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void handle_event(Input::Event ev);
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/**
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* Accessors
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*/
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Point mouse_pos() { return _mouse_pos; }
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/**
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* Mode interface
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*/
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void forget(View const &);
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};
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#endif
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