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
/////////////////////////////////////////////////////////////////////////////

#ifdef __GNUG__
#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
#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 + ".chm" ) )
                return tmp + ".chm";

            return filename;

        case wxUseHtmlHelp:
            if( ::wxFileExists( tmp + ".htb" ) )
                return tmp + ".htb";
            if( ::wxFileExists( tmp + ".zip" ) )
                return tmp + ".zip";
            if( ::wxFileExists( tmp + ".hhp" ) )
                return tmp + ".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	#ifdef __GNUG__
	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__) && wxUSE_WXHTML_HELP
	31	#include "wx/msw/helpchm.h"
	32	#include "wx/html/helpctrl.h"
	33	#include "wx/msw/helpbest.h"
	34
	35	IMPLEMENT_DYNAMIC_CLASS( wxBestHelpController, wxHelpControllerBase )
	36
	37	bool wxBestHelpController::Initialize( const wxString& filename )
	38	{
	39	// try wxCHMHelpController
	40	wxCHMHelpController* chm = new wxCHMHelpController;
	41
	42	m_helpControllerType = wxUseChmHelp;
	43	// do not warn upon failure
	44	wxLogNull dontWarnOnFailure;
	45
	46	if( chm->Initialize( GetValidFilename( filename ) ) )
	47	{
	48	m_helpController = chm;
	49	return TRUE;
	50	}
	51
	52	// failed
	53	delete chm;
	54
	55	// try wxHtmlHelpController
	56	wxHtmlHelpController* html = new wxHtmlHelpController;
	57
	58	m_helpControllerType = wxUseHtmlHelp;
	59	if( html->Initialize( GetValidFilename( filename ) ) )
	60	{
	61	m_helpController = html;
	62	return TRUE;
	63	}
	64
	65	// failed
	66	delete html;
	67
	68	return FALSE;
	69	}
	70
	71	wxString wxBestHelpController::GetValidFilename( const wxString& filename ) const
	72	{
	73	wxString tmp = filename;
	74	::wxStripExtension( tmp );
	75
	76	switch( m_helpControllerType )
	77	{
	78	case wxUseChmHelp:
	79	if( ::wxFileExists( tmp + ".chm" ) )
	80	return tmp + ".chm";
	81
	82	return filename;
	83
	84	case wxUseHtmlHelp:
	85	if( ::wxFileExists( tmp + ".htb" ) )
	86	return tmp + ".htb";
	87	if( ::wxFileExists( tmp + ".zip" ) )
	88	return tmp + ".zip";
	89	if( ::wxFileExists( tmp + ".hhp" ) )
	90	return tmp + ".hhp";
	91
	92	return filename;
	93
	94	default:
	95	// we CAN'T get here
	96	wxFAIL_MSG( wxT("wxBestHelpController: Must call Initialize, first!") );
	97	}
	98
	99	return wxEmptyString;
	100	}
	101
	102	#endif
	103	// wxUSE_HELP && wxUSE_MS_HTML_HELP && defined(__WIN95__) && wxUSE_WXHTML_HELP