97 lines
2.1 KiB
C++
97 lines
2.1 KiB
C++
/*
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* \brief Global keys policy
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* \author Norman Feske
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* \date 2013-09-06
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*/
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/*
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* Copyright (C) 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 _GLOBAL_KEYS_H_
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#define _GLOBAL_KEYS_H_
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/* Genode includes */
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#include <input/keycodes.h>
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/* local includes */
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#include "session.h"
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class Global_keys
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{
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private:
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struct Policy
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{
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enum Type {
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/**
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* Key is not global but should be propagated to focused client
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*/
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UNDEFINED,
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/**
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* Key activates nitpicker's built-in kill mode
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*/
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KILL,
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/**
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* Key activates nitpicker's built-in X-ray mode
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*/
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XRAY,
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/**
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* Key should be propagated to client session
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*/
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CLIENT
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};
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Type _type;
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Session *_session;
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Policy() : _type(UNDEFINED), _session(0) { }
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void undefine() { _type = UNDEFINED; _session = 0; }
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void operation_kill() { _type = KILL; _session = 0; }
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void operation_xray() { _type = XRAY; _session = 0; }
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void client(Session *s) { _type = CLIENT; _session = s; }
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bool defined() const { return _type != UNDEFINED; }
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bool xray() const { return _type == XRAY; }
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bool kill() const { return _type == KILL; }
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};
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enum { NUM_POLICIES = Input::KEY_MAX + 1 };
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Policy _policies[NUM_POLICIES];
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/**
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* Lookup policy that matches the specified key name
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*/
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Policy *_lookup_policy(char const *key_name);
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bool _valid(Input::Keycode key) const {
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return key >= 0 && key <= Input::KEY_MAX; }
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public:
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Session *global_receiver(Input::Keycode key) {
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return _valid(key) ? _policies[key]._session : 0; }
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void apply_config(Session_list &session_list);
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bool is_operation_key(Input::Keycode key) const {
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return _valid(key) && (_policies[key].xray() || _policies[key].kill()); }
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bool is_xray_key(Input::Keycode key) const {
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return _valid(key) && _policies[key].xray(); }
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bool is_kill_key(Input::Keycode key) const {
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return _valid(key) && _policies[key].kill(); }
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};
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#endif /* _GLOBAL_KEYS_H_ */
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