1 ///////////////////////////////////////////////////////////////////////////// 2 // Name: src/msw/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: helpbest.cpp 39398 2006-05-28 23:07:02Z VZ $ 8 // Copyright: (c) Mattia Barbon 9 // Licence: wxWindows licence 10 ///////////////////////////////////////////////////////////////////////////// 11 12 // For compilers that support precompilation, includes "wx.h". 13 #include "wx/wxprec.h" 14 15 #ifdef __BORLANDC__ 16 #pragma hdrstop 17 #endif 18 19 #ifndef WX_PRECOMP 20 #include "wx/log.h" 21 #endif 22 23 #include "wx/filefn.h" 24 25 #if wxUSE_HELP && wxUSE_MS_HTML_HELP \ 26 && wxUSE_WXHTML_HELP && !defined(__WXUNIVERSAL__) 27 28 #include "wx/msw/helpchm.h" 29 #include "wx/html/helpctrl.h" 30 #include "wx/msw/helpbest.h" 31 IMPLEMENT_DYNAMIC_CLASS(wxBestHelpController,wxHelpControllerBase)32IMPLEMENT_DYNAMIC_CLASS( wxBestHelpController, wxHelpControllerBase ) 33 34 bool wxBestHelpController::Initialize( const wxString& filename ) 35 { 36 // try wxCHMHelpController 37 wxCHMHelpController* chm = new wxCHMHelpController(m_parentWindow); 38 39 m_helpControllerType = wxUseChmHelp; 40 // do not warn upon failure 41 wxLogNull dontWarnOnFailure; 42 43 if( chm->Initialize( GetValidFilename( filename ) ) ) 44 { 45 m_helpController = chm; 46 m_parentWindow = NULL; 47 return true; 48 } 49 50 // failed 51 delete chm; 52 53 // try wxHtmlHelpController 54 wxHtmlHelpController * 55 html = new wxHtmlHelpController(m_style, m_parentWindow); 56 57 m_helpControllerType = wxUseHtmlHelp; 58 if( html->Initialize( GetValidFilename( filename ) ) ) 59 { 60 m_helpController = html; 61 m_parentWindow = NULL; 62 return true; 63 } 64 65 // failed 66 delete html; 67 68 return false; 69 } 70 GetValidFilename(const wxString & filename) const71wxString 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 + wxT(".chm") ) ) 80 return tmp + wxT(".chm"); 81 82 return filename; 83 84 case wxUseHtmlHelp: 85 if( ::wxFileExists( tmp + wxT(".htb") ) ) 86 return tmp + wxT(".htb"); 87 if( ::wxFileExists( tmp + wxT(".zip") ) ) 88 return tmp + wxT(".zip"); 89 if( ::wxFileExists( tmp + wxT(".hhp") ) ) 90 return tmp + wxT(".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 && wxUSE_WXHTML_HELP 104