mimetmac.cpp

很牛的GUI源码wxWidgets-2.8.0.zip 可在多种平台下运行.

                       m_lIndex, &entry);

        wxString sCurrentExtension = wxMacMakeStringFromPascal(entry.extension);
        sCurrentExtension = sCurrentExtension.Right(sCurrentExtension.length()-1 );

        //type, creator, ext, roles, outapp (FSRef), outappurl
        CFURLRef cfurlAppPath;
        OSStatus status = LSGetApplicationForInfo( kLSUnknownType,
            kLSUnknownCreator,
            wxMacCFStringHolder(sCurrentExtension, wxLocale::GetSystemEncoding()),
            kLSRolesAll,
            NULL,
            &cfurlAppPath );

        if (status == noErr)
        {
            CFStringRef cfsUnixPath = CFURLCopyFileSystemPath(cfurlAppPath, kCFURLPOSIXPathStyle);
            CFRelease(cfurlAppPath);

            // PHEW!  Success!
            // Since a filename might have spaces in it, so surround it with quotes
            if (cfsUnixPath)
            {
                wxString resultStr;

                resultStr =
                    wxString(wxT("'"))
                    + wxMacCFStringHolder(cfsUnixPath).AsString(wxLocale::GetSystemEncoding())
                    + wxString(wxT("'"));

               return resultStr;
            }
        }
        else
        {
            wxLogDebug(wxString::Format(wxT("%i - %s - %i"),
            __LINE__,
            wxT("LSGetApplicationForInfo failed."),
            (int)status));
        }
    }

    return wxEmptyString;
}

#else //carbon/classic implementation


wxString wxFileTypeImpl::GetCommand(const wxString& verb) const
{
    wxASSERT_MSG( m_manager != NULL , wxT("Bad wxFileType") );

    if (verb == wxT("open"))
    {
        ICMapEntry entry;
        ICGetMapEntry( (ICInstance) m_manager->m_hIC,
                       (Handle) m_manager->m_hDatabase,
                       m_lIndex, &entry);

        //The entry in the mimetype database only contains the app
        //that's registered - it may not exist... we need to remap the creator
        //type and find the right application

        // THIS IS REALLY COMPLICATED :\.
        // There are a lot of conversions going on here.
        Str255 outName;
        FSSpec outSpec;
        OSErr err = FindApplication( entry.fileCreator, false, outName, &outSpec );
        if (err != noErr)
            return wxEmptyString;

        Handle outPathHandle;
        short outPathSize;
        err = FSpGetFullPath( &outSpec, &outPathSize, &outPathHandle );
        if (err == noErr)
        {
            char* szPath = *outPathHandle;
            wxString sClassicPath(szPath, wxConvLocal, outPathSize);

#if defined(__DARWIN__)
            // Classic Path --> Unix (OSX) Path
            CFURLRef finalURL = CFURLCreateWithFileSystemPath(
                kCFAllocatorDefault,
                wxMacCFStringHolder(sClassicPath, wxLocale::GetSystemEncoding()),
                kCFURLHFSPathStyle,
                false ); //false == not a directory

            //clean up memory from the classic path handle
            DisposeHandle( outPathHandle );

            if (finalURL)
            {
                CFStringRef cfsUnixPath = CFURLCopyFileSystemPath(finalURL, kCFURLPOSIXPathStyle);
                CFRelease(finalURL);

                // PHEW!  Success!
                if (cfsUnixPath)
                    return wxMacCFStringHolder(cfsUnixPath).AsString(wxLocale::GetSystemEncoding());
            }
#else //classic HFS path acceptable
            return sClassicPath;
#endif
        }
        else
        {
            wxLogMimeDebug(wxT("FSpGetFullPath failed."), (OSStatus)err);
        }
    }

    return wxEmptyString;
}
#endif //!DARWIN

bool wxFileTypeImpl::GetDescription(wxString *desc) const
{
    wxASSERT_MSG( m_manager != NULL , wxT("Bad wxFileType") );

    ICMapEntry entry;
    ICGetMapEntry( (ICInstance) m_manager->m_hIC,
        (Handle) m_manager->m_hDatabase, m_lIndex, &entry );

    *desc = wxMacMakeStringFromPascal( entry.entryName );

    return true;
}

bool wxFileTypeImpl::GetExtensions(wxArrayString& extensions)
{
    wxASSERT_MSG( m_manager != NULL , wxT("Bad wxFileType") );

    ICMapEntry entry;
    ICGetMapEntry( (ICInstance) m_manager->m_hIC,
        (Handle) m_manager->m_hDatabase, m_lIndex, &entry );

    //entry has period in it
    wxString sCurrentExtension = wxMacMakeStringFromPascal( entry.extension );
    extensions.Add( sCurrentExtension.Right( sCurrentExtension.length() - 1 ) );

    return true;
}

bool wxFileTypeImpl::GetMimeType(wxString *mimeType) const
{
    wxASSERT_MSG( m_manager != NULL , wxT("Bad wxFileType") );

    ICMapEntry entry;
    ICGetMapEntry( (ICInstance) m_manager->m_hIC,
        (Handle) m_manager->m_hDatabase, m_lIndex, &entry );

    *mimeType = wxMacMakeStringFromPascal(entry.MIMEType);

    return true;
}

bool wxFileTypeImpl::GetMimeTypes(wxArrayString& mimeTypes) const
{
    wxString s;

    if (GetMimeType(&s))
    {
        mimeTypes.Clear();
        mimeTypes.Add(s);

        return true;
    }

    return false;
}

bool wxFileTypeImpl::GetIcon(wxIconLocation *WXUNUSED(icon)) const
{
    wxASSERT_MSG( m_manager != NULL , wxT("Bad wxFileType") );

    // no such file type or no value or incorrect icon entry
    return false;
}

size_t wxFileTypeImpl::GetAllCommands(wxArrayString * verbs,
    wxArrayString * commands,
    const wxFileType::MessageParameters& params) const
{
    wxASSERT_MSG( m_manager != NULL , wxT("Bad wxFileType") );

    wxString sCommand;
    size_t ulCount = 0;

    if (GetOpenCommand(&sCommand, params))
    {
        verbs->Add(wxString(wxT("open")));
        commands->Add(sCommand);
        ++ulCount;
    }

    return ulCount;
}

void wxMimeTypesManagerImpl::Initialize(int mailcapStyles, const wxString& extraDir)
{
    wxASSERT_MSG(m_hIC == NULL, wxT("Already initialized wxMimeTypesManager!"));

    // some apps (non-wx) use the 'plst' resource instead
#if 0
    CFBundleRef cfbMain = CFBundleGetMainBundle();
    wxCFDictionary cfdInfo( CFBundleGetInfoDictionary(cfbMain), wxCF_RETAIN );
    wxString sLog;
    cfdInfo.PrintOut(sLog);
    wxLogDebug(sLog);
#endif

    // start Internet Config - log if there's an error
    // the second param is the signature of the application, also known
    // as resource ID 0.  However, as per some recent discussions, we may not
    // have a signature for this app, so a generic 'APPL' which is the executable
    // type will work for now.
    OSStatus status = ICStart( (ICInstance*)&m_hIC, 'APPL' );

    if (status != noErr)
    {
        wxLogDebug(wxT("Could not initialize wxMimeTypesManager!"));
        wxFAIL;
        m_hIC = NULL;

        return;
    }

    ICAttr attr;
    m_hDatabase = (void**) NewHandle(0);
    status = ICFindPrefHandle( (ICInstance) m_hIC, kICMapping, &attr, (Handle) m_hDatabase );

    //the database file can be corrupt (on OSX its
    //~/Library/Preferences/com.apple.internetconfig.plist)
    //- bail if it is
    if (status != noErr)
    {
        ClearData();
        wxLogDebug(wxT("Corrupt MIME database!"));
        return;
    }

    //obtain the number of entries in the map
    status = ICCountMapEntries( (ICInstance) m_hIC, (Handle) m_hDatabase, &m_lCount );
    wxASSERT( status == noErr );

#if 0
    //debug stuff
    ICMapEntry entry;
    long pos;

    for (long i = 1; i <= m_lCount; ++i)
    {
        OSStatus status = ICGetIndMapEntry( (ICInstance) m_hIC, (Handle) m_hDatabase, i, &pos, &entry );

        if (status == noErr)
        {
            wxString sCreator = wxMacMakeStringFromPascal(entry.creatorAppName);
            wxString sCurrentExtension = wxMacMakeStringFromPascal(entry.extension);
            wxString sMIMEType = wxMacMakeStringFromPascal(entry.MIMEType);

            wxFileTypeImpl impl;
            impl.Init(this, pos);

            if (sMIMEType == wxT("text/html") && sCurrentExtension == wxT(".html"))
            {
                wxString cmd;

                impl.GetOpenCommand( &cmd, wxFileType::MessageParameters (wxT("http://www.google.com")));
                wxPrintf(wxT("APP: [%s]\n"), cmd.c_str());
            }
        }
    }
#endif
}

void wxMimeTypesManagerImpl::ClearData()
{
    if (m_hIC != NULL)
    {
        DisposeHandle( (Handle)m_hDatabase );

        // this can return an error, but we don't really care that much about it
        ICStop( (ICInstance)m_hIC );
        m_hIC = NULL;
    }
}

//
//  Q) Iterating through the map - why does it use if (err == noErr) instead of just asserting?
//  A) Some intermediate indexes are bad while subsequent ones may be good.  Its wierd, I know.
//

// extension -> file type
wxFileType* wxMimeTypesManagerImpl::GetFileTypeFromExtension(const wxString& e)
{
    wxASSERT_MSG( m_hIC != NULL, wxT("wxMimeTypesManager not Initialized!") );

    //low level functions - iterate through the database
    ICMapEntry entry;
    long pos;

    for (long i = 1; i <= m_lCount; ++i)
    {
        OSStatus status = ICGetIndMapEntry( (ICInstance) m_hIC, (Handle) m_hDatabase, i, &pos, &entry );

        if (status == noErr)
        {
            wxString sCurrentExtension = wxMacMakeStringFromPascal(entry.extension);
            if ( sCurrentExtension.Right(sCurrentExtension.length() - 1) == e ) // entry has period in it
            {
                wxFileType* pFileType = new wxFileType();
                pFileType->m_impl->Init((wxMimeTypesManagerImpl*)this, pos);

                return pFileType;
            }
        }
    }

    return NULL;
}

// MIME type -> extension -> file type
wxFileType* wxMimeTypesManagerImpl::GetFileTypeFromMimeType(const wxString& mimeType)
{
    wxASSERT_MSG( m_hIC != NULL, wxT("wxMimeTypesManager not Initialized!") );

    ICMapEntry entry;
    long pos;

    // low level functions - iterate through the database
    for (long i = 1; i <= m_lCount; ++i)
    {
        OSStatus status = ICGetIndMapEntry( (ICInstance) m_hIC, (Handle) m_hDatabase, i, &pos, &entry );
        wxASSERT_MSG( status == noErr, wxString::Format(wxT("Error: %d"), (int)status) );

        if (status == noErr)
        {
            if ( wxMacMakeStringFromPascal(entry.MIMEType) == mimeType)
            {
                wxFileType* pFileType = new wxFileType();
                pFileType->m_impl->Init((wxMimeTypesManagerImpl*)this, pos);

                return pFileType;
            }
        }
    }

    return NULL;
}

size_t wxMimeTypesManagerImpl::EnumAllFileTypes(wxArrayString& mimetypes)
{
    wxASSERT_MSG( m_hIC != NULL, wxT("wxMimeTypesManager not Initialized!") );

    ICMapEntry entry;
    long pos, lStartCount;

    // low level functions - iterate through the database
    lStartCount = (long) mimetypes.GetCount();
    for (long i = 1; i <= m_lCount; ++i)
    {
        OSStatus status = ICGetIndMapEntry( (ICInstance) m_hIC, (Handle) m_hDatabase, i, &pos, &entry );
        if ( status == noErr )
            mimetypes.Add( wxMacMakeStringFromPascal(entry.MIMEType) );
    }

    return mimetypes.GetCount() - lStartCount;
}

pascal  OSStatus  MoreProcGetProcessTypeSignature(
    const ProcessSerialNumberPtr pPSN,
    OSType *pProcessType,
    OSType *pCreator)
{
    OSStatus anErr = noErr;
    ProcessInfoRec infoRec;
    ProcessSerialNumber localPSN;

    infoRec.processInfoLength = sizeof(ProcessInfoRec);
    infoRec.processName = NULL;
#ifndef __LP64__
    infoRec.processAppSpec = NULL;
#endif

    if ( pPSN == NULL )
    {
        localPSN.highLongOfPSN = 0;
        localPSN.lowLongOfPSN  = kCurrentProcess;
    }
    else
    {
        localPSN = *pPSN;
    }

    anErr = GetProcessInformation(&localPSN, &infoRec);
    if (anErr == noErr)
    {
        *pProcessType = infoRec.processType;
        *pCreator = infoRec.processSignature;
    }

    return anErr;
}

//
//
//  TODO: clean this up, its messy
//
//
//

#include "wx/mac/corefoundation/cfstring.h"

#define wxCF_RELEASE true
#define wxCF_RETAIN  false