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/*
Copyright (C) 2009 Red Hat, Inc.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _H_FOREIGN_MENU
#define _H_FOREIGN_MENU
#include "named_pipe.h"
#include "menu.h"
class ForeignMenuConnection;
struct FrgMenuInit;
struct FrgMenuMsg;
class ForeignMenuInterface : public CommandTarget {
public:
virtual ~ForeignMenuInterface() {}
virtual int get_foreign_menu_item_id(int32_t opaque_conn_ref, uint32_t msg_id) = 0;
virtual void clear_menu_items(int32_t opaque_conn_ref) = 0;
virtual void remove_menu_item(int item_id) = 0;
virtual Menu* get_app_menu() = 0;
virtual void update_menu() = 0;
};
class ForeignMenu : public NamedPipe::ListenerInterface {
public:
ForeignMenu(ForeignMenuInterface *handler, bool active = false);
virtual ~ForeignMenu();
ForeignMenu* ref() { _refs++; return this;}
void unref() { if (!--_refs) delete this;}
virtual NamedPipe::ConnectionInterface &create();
void add_connection(NamedPipe::ConnectionRef conn_ref, ForeignMenuConnection *conn);
void remove_connection(NamedPipe::ConnectionRef conn_ref);
void add_sub_menus();
void on_command(NamedPipe::ConnectionRef conn_ref, int32_t id);
void on_activate();
void on_deactivate();
private:
void send_active_state(ForeignMenuConnection *conn, int32_t cmd);
private:
ForeignMenuInterface *_handler;
std::map<NamedPipe::ConnectionRef, ForeignMenuConnection*> _connections;
NamedPipe::ListenerRef _foreign_menu;
bool _active;
int _refs;
};
#define FOREIGN_MENU_BUF_SIZE 4096
class ForeignMenuConnection : public NamedPipe::ConnectionInterface {
public:
ForeignMenuConnection(ForeignMenuInterface *handler, ForeignMenu& parent);
virtual ~ForeignMenuConnection();
virtual void bind(NamedPipe::ConnectionRef conn_ref);
virtual void on_data();
bool write_msg(const void *buf, int len);
void reset_handler() { _handler = NULL;}
void add_sub_menu();
private:
bool read_msgs();
bool handle_init(FrgMenuInit *init);
bool handle_message(FrgMenuMsg *hdr);
int get_item_state(int item_type);
private:
ForeignMenuInterface *_handler;
ForeignMenu& _parent;
Menu* _sub_menu;
bool _initialized;
int _write_pending;
uint8_t *_write_pos;
uint8_t *_read_pos;
uint8_t _write_buf[FOREIGN_MENU_BUF_SIZE];
uint8_t _read_buf[FOREIGN_MENU_BUF_SIZE];
RecurciveMutex _write_lock;
};
#endif
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