src/msw/helpbest.cpp

/////////////////////////////////////////////////////////////////////////////
// Name:        helpbest.cpp
// Purpose:     Tries to load MS HTML Help, falls back to wxHTML upon failure
// Author:      Mattia Barbon
// Modified by:
// Created:     02/04/2001
// RCS-ID:      $Id$
// Copyright:   (c) Mattia Barbon
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
#pragma implementation "helpbest.h"
#endif

// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"

#ifdef __BORLANDC__
#pragma hdrstop
#endif

#ifndef WX_PRECOMP
#include "wx/defs.h"
#endif

#include "wx/filefn.h"
#include "wx/log.h"

#if wxUSE_HELP && wxUSE_MS_HTML_HELP && defined(__WIN95__) \
    && wxUSE_WXHTML_HELP && !defined(__WXUNIVERSAL__)

#include "wx/msw/helpchm.h"
#include "wx/html/helpctrl.h"
#include "wx/msw/helpbest.h"

IMPLEMENT_DYNAMIC_CLASS( wxBestHelpController, wxHelpControllerBase )

bool wxBestHelpController::Initialize( const wxString& filename )
{
    // try wxCHMHelpController
    wxCHMHelpController* chm = new wxCHMHelpController;

    m_helpControllerType = wxUseChmHelp;
    // do not warn upon failure
    wxLogNull dontWarnOnFailure;

    if( chm->Initialize( GetValidFilename( filename ) ) )
    {
        m_helpController = chm;
        return true;
    }

    // failed
    delete chm;

    // try wxHtmlHelpController
    wxHtmlHelpController* html = new wxHtmlHelpController;

    m_helpControllerType = wxUseHtmlHelp;
    if( html->Initialize( GetValidFilename( filename ) ) )
    {
        m_helpController = html;
        return true;
    }

    // failed
    delete html;

    return false;
}

wxString wxBestHelpController::GetValidFilename( const wxString& filename ) const
{
    wxString tmp = filename;
    ::wxStripExtension( tmp );

    switch( m_helpControllerType )
    {
        case wxUseChmHelp:
            if( ::wxFileExists( tmp + wxT(".chm") ) )
                return tmp + wxT(".chm");

            return filename;

        case wxUseHtmlHelp:
            if( ::wxFileExists( tmp + wxT(".htb") ) )
                return tmp + wxT(".htb");
            if( ::wxFileExists( tmp + wxT(".zip") ) )
                return tmp + wxT(".zip");
            if( ::wxFileExists( tmp + wxT(".hhp") ) )
                return tmp + wxT(".hhp");

            return filename;

        default:
            // we CAN'T get here
            wxFAIL_MSG( wxT("wxBestHelpController: Must call Initialize, first!") );
    }

    return wxEmptyString;
}

#endif
    // wxUSE_HELP && wxUSE_MS_HTML_HELP && defined(__WIN95__) && wxUSE_WXHTML_HELP
Commit	Line	Data
	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: helpbest.cpp
	3	// Purpose: Tries to load MS HTML Help, falls back to wxHTML upon failure
	4	// Author: Mattia Barbon
	5	// Modified by:
	6	// Created: 02/04/2001
	7	// RCS-ID: $Id$
	8	// Copyright: (c) Mattia Barbon
	9	// Licence: wxWindows licence
	10	/////////////////////////////////////////////////////////////////////////////
	11
	12	#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
	13	#pragma implementation "helpbest.h"
	14	#endif
	15
	16	// For compilers that support precompilation, includes "wx.h".
	17	#include "wx/wxprec.h"
	18
	19	#ifdef __BORLANDC__
	20	#pragma hdrstop
	21	#endif
	22
	23	#ifndef WX_PRECOMP
	24	#include "wx/defs.h"
	25	#endif
	26
	27	#include "wx/filefn.h"
	28	#include "wx/log.h"
	29
	30	#if wxUSE_HELP && wxUSE_MS_HTML_HELP && defined(__WIN95__) \
	31	&& wxUSE_WXHTML_HELP && !defined(__WXUNIVERSAL__)
	32
	33	#include "wx/msw/helpchm.h"
	34	#include "wx/html/helpctrl.h"
	35	#include "wx/msw/helpbest.h"
	36
	37	IMPLEMENT_DYNAMIC_CLASS( wxBestHelpController, wxHelpControllerBase )
	38
	39	bool wxBestHelpController::Initialize( const wxString& filename )
	40	{
	41	// try wxCHMHelpController
	42	wxCHMHelpController* chm = new wxCHMHelpController;
	43
	44	m_helpControllerType = wxUseChmHelp;
	45	// do not warn upon failure
	46	wxLogNull dontWarnOnFailure;
	47
	48	if( chm->Initialize( GetValidFilename( filename ) ) )
	49	{
	50	m_helpController = chm;
	51	return true;
	52	}
	53
	54	// failed
	55	delete chm;
	56
	57	// try wxHtmlHelpController
	58	wxHtmlHelpController* html = new wxHtmlHelpController;
	59
	60	m_helpControllerType = wxUseHtmlHelp;
	61	if( html->Initialize( GetValidFilename( filename ) ) )
	62	{
	63	m_helpController = html;
	64	return true;
	65	}
	66
	67	// failed
	68	delete html;
	69
	70	return false;
	71	}
	72
	73	wxString wxBestHelpController::GetValidFilename( const wxString& filename ) const
	74	{
	75	wxString tmp = filename;
	76	::wxStripExtension( tmp );
	77
	78	switch( m_helpControllerType )
	79	{
	80	case wxUseChmHelp:
	81	if( ::wxFileExists( tmp + wxT(".chm") ) )
	82	return tmp + wxT(".chm");
	83
	84	return filename;
	85
	86	case wxUseHtmlHelp:
	87	if( ::wxFileExists( tmp + wxT(".htb") ) )
	88	return tmp + wxT(".htb");
	89	if( ::wxFileExists( tmp + wxT(".zip") ) )
	90	return tmp + wxT(".zip");
	91	if( ::wxFileExists( tmp + wxT(".hhp") ) )
	92	return tmp + wxT(".hhp");
	93
	94	return filename;
	95
	96	default:
	97	// we CAN'T get here
	98	wxFAIL_MSG( wxT("wxBestHelpController: Must call Initialize, first!") );
	99	}
	100
	101	return wxEmptyString;
	102	}
	103
	104	#endif
	105	// wxUSE_HELP && wxUSE_MS_HTML_HELP && defined(__WIN95__) && wxUSE_WXHTML_HELP