wxWidgets/include/wx/dialup.h
Lauri Nurmi b6803cdfd2 Fix double negatives used with 'neither' in docs and comments
In many cases it should be 'either', and 'nor' should be 'or'
accordingly.

No changes to actual code.

See #22723.

(cherry picked from commit 66916c74a3d44e8bc1b30cf42309e36e5d9e9135)
2022-08-19 16:30:25 +02:00

201 lines
8.0 KiB
C++

/////////////////////////////////////////////////////////////////////////////
// Name: wx/dialup.h
// Purpose: Network related wxWidgets classes and functions
// Author: Vadim Zeitlin
// Modified by:
// Created: 07.07.99
// Copyright: (c) Vadim Zeitlin
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#ifndef _WX_DIALUP_H
#define _WX_DIALUP_H
#if wxUSE_DIALUP_MANAGER
#include "wx/event.h"
// ----------------------------------------------------------------------------
// misc
// ----------------------------------------------------------------------------
class WXDLLIMPEXP_FWD_BASE wxArrayString;
#define WXDIALUP_MANAGER_DEFAULT_BEACONHOST wxT("www.yahoo.com")
// ----------------------------------------------------------------------------
// A class which groups functions dealing with connecting to the network from a
// workstation using dial-up access to the net. There is at most one instance
// of this class in the program accessed via GetDialUpManager().
// ----------------------------------------------------------------------------
/* TODO
*
* 1. more configurability for Unix: i.e. how to initiate the connection, how
* to check for online status, &c.
* 2. a function to enumerate all connections (ISPs) and show a dialog in
* Dial() allowing to choose between them if no ISP given
* 3. add an async version of dialing functions which notify the caller about
* the progress (or may be even start another thread to monitor it)
* 4. the static creation/accessor functions are not MT-safe - but is this
* really crucial? I think we may suppose they're always called from the
* main thread?
*/
class WXDLLIMPEXP_CORE wxDialUpManager
{
public:
// this function should create and return the object of the
// platform-specific class derived from wxDialUpManager. It's implemented
// in the platform-specific source files.
static wxDialUpManager *Create();
// could the dialup manager be initialized correctly? If this function
// returns false, no other functions will work either, so it's a good idea
// to call this function and check its result before calling any other
// wxDialUpManager methods
virtual bool IsOk() const = 0;
// virtual dtor for any base class
virtual ~wxDialUpManager() { }
// operations
// ----------
// fills the array with the names of all possible values for the first
// parameter to Dial() on this machine and returns their number (may be 0)
virtual size_t GetISPNames(wxArrayString& names) const = 0;
// dial the given ISP, use username and password to authenticate
//
// if no nameOfISP is given, the function will select the default one
//
// if no username/password are given, the function will try to do without
// them, but will ask the user if really needed
//
// if async parameter is false, the function waits until the end of dialing
// and returns true upon successful completion.
// if async is true, the function only initiates the connection and returns
// immediately - the result is reported via events (an event is sent
// anyhow, but if dialing failed it will be a DISCONNECTED one)
virtual bool Dial(const wxString& nameOfISP = wxEmptyString,
const wxString& username = wxEmptyString,
const wxString& password = wxEmptyString,
bool async = true) = 0;
// returns true if (async) dialing is in progress
virtual bool IsDialing() const = 0;
// cancel dialing the number initiated with Dial(async = true)
// NB: this won't result in DISCONNECTED event being sent
virtual bool CancelDialing() = 0;
// hang up the currently active dial up connection
virtual bool HangUp() = 0;
// online status
// -------------
// returns true if the computer has a permanent network connection (i.e. is
// on a LAN) and so there is no need to use Dial() function to go online
//
// NB: this functions tries to guess the result and it is not always
// guaranteed to be correct, so it's better to ask user for
// confirmation or give him a possibility to override it
virtual bool IsAlwaysOnline() const = 0;
// returns true if the computer is connected to the network: under Windows,
// this just means that a RAS connection exists, under Unix we check that
// the "well-known host" (as specified by SetWellKnownHost) is reachable
virtual bool IsOnline() const = 0;
// sometimes the built-in logic for determining the online status may fail,
// so, in general, the user should be allowed to override it. This function
// allows to forcefully set the online status - whatever our internal
// algorithm may think about it.
virtual void SetOnlineStatus(bool isOnline = true) = 0;
// set misc wxDialUpManager options
// --------------------------------
// enable automatic checks for the connection status and sending of
// wxEVT_DIALUP_CONNECTED/wxEVT_DIALUP_DISCONNECTED events. The interval
// parameter is only for Unix where we do the check manually: under
// Windows, the notification about the change of connection status is
// instantaneous.
//
// Returns false if couldn't set up automatic check for online status.
virtual bool EnableAutoCheckOnlineStatus(size_t nSeconds = 60) = 0;
// disable automatic check for connection status change - notice that the
// wxEVT_DIALUP_XXX events won't be sent any more either.
virtual void DisableAutoCheckOnlineStatus() = 0;
// additional Unix-only configuration
// ----------------------------------
// under Unix, the value of well-known host is used to check whether we're
// connected to the internet. It's unused under Windows, but this function
// is always safe to call. The default value is www.yahoo.com.
virtual void SetWellKnownHost(const wxString& hostname,
int portno = 80) = 0;
// Sets the commands to start up the network and to hang up again. Used by
// the Unix implementations only.
virtual void
SetConnectCommand(const wxString& commandDial = wxT("/usr/bin/pon"),
const wxString& commandHangup = wxT("/usr/bin/poff")) = 0;
};
// ----------------------------------------------------------------------------
// wxDialUpManager events
// ----------------------------------------------------------------------------
class WXDLLIMPEXP_FWD_CORE wxDialUpEvent;
wxDECLARE_EXPORTED_EVENT( WXDLLIMPEXP_CORE, wxEVT_DIALUP_CONNECTED, wxDialUpEvent );
wxDECLARE_EXPORTED_EVENT( WXDLLIMPEXP_CORE, wxEVT_DIALUP_DISCONNECTED, wxDialUpEvent );
// the event class for the dialup events
class WXDLLIMPEXP_CORE wxDialUpEvent : public wxEvent
{
public:
wxDialUpEvent(bool isConnected, bool isOwnEvent) : wxEvent(isOwnEvent)
{
SetEventType(isConnected ? wxEVT_DIALUP_CONNECTED
: wxEVT_DIALUP_DISCONNECTED);
}
// is this a CONNECTED or DISCONNECTED event?
bool IsConnectedEvent() const
{ return GetEventType() == wxEVT_DIALUP_CONNECTED; }
// does this event come from wxDialUpManager::Dial() or from some external
// process (i.e. does it result from our own attempt to establish the
// connection)?
bool IsOwnEvent() const { return m_id != 0; }
// implement the base class pure virtual
virtual wxEvent *Clone() const wxOVERRIDE { return new wxDialUpEvent(*this); }
private:
wxDECLARE_NO_ASSIGN_DEF_COPY(wxDialUpEvent);
};
// the type of dialup event handler function
typedef void (wxEvtHandler::*wxDialUpEventFunction)(wxDialUpEvent&);
#define wxDialUpEventHandler(func) \
wxEVENT_HANDLER_CAST(wxDialUpEventFunction, func)
// macros to catch dialup events
#define EVT_DIALUP_CONNECTED(func) \
wx__DECLARE_EVT0(wxEVT_DIALUP_CONNECTED, wxDialUpEventHandler(func))
#define EVT_DIALUP_DISCONNECTED(func) \
wx__DECLARE_EVT0(wxEVT_DIALUP_DISCONNECTED, wxDialUpEventHandler(func))
#endif // wxUSE_DIALUP_MANAGER
#endif // _WX_DIALUP_H