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wxWidgets/src/common/mimecmn.cpp

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/////////////////////////////////////////////////////////////////////////////
// Name: src/common/mimecmn.cpp
// Purpose: classes and functions to manage MIME types
// Author: Vadim Zeitlin
// Modified by:
// Chris Elliott (biol75@york.ac.uk) 5 Dec 00: write support for Win32
// Created: 23.09.98
// RCS-ID: $Id$
// Copyright: (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
// Licence: wxWindows licence (part of wxExtra library)
/////////////////////////////////////////////////////////////////////////////
// ============================================================================
// declarations
// ============================================================================
// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------
// for compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
#if wxUSE_MIMETYPE
#ifndef WX_PRECOMP
#include "wx/dynarray.h"
#include "wx/string.h"
#endif //WX_PRECOMP
#include "wx/module.h"
#include "wx/log.h"
#include "wx/file.h"
#include "wx/iconloc.h"
#include "wx/intl.h"
#include "wx/confbase.h"
#include "wx/mimetype.h"
// other standard headers
#include <ctype.h>
// implementation classes:
#if defined(__WXMSW__)
#include "wx/msw/mimetype.h"
#elif defined(__WXMAC__)
#include "wx/mac/mimetype.h"
#elif defined(__WXPM__) || defined (__EMX__)
#include "wx/os2/mimetype.h"
#undef __UNIX__
#elif defined(__DOS__)
#include "wx/msdos/mimetype.h"
#else // Unix
#include "wx/unix/mimetype.h"
#endif
// ============================================================================
// common classes
// ============================================================================
// ----------------------------------------------------------------------------
// wxFileTypeInfo
// ----------------------------------------------------------------------------
wxFileTypeInfo::wxFileTypeInfo(const wxChar *mimeType,
const wxChar *openCmd,
const wxChar *printCmd,
const wxChar *desc,
...)
: m_mimeType(mimeType),
m_openCmd(openCmd),
m_printCmd(printCmd),
m_desc(desc)
{
va_list argptr;
va_start(argptr, desc);
for ( ;; )
{
// icc gives this warning in its own va_arg() macro, argh
#ifdef __INTELC__
#pragma warning(push)
#pragma warning(disable: 1684)
#endif
const wxChar *ext = va_arg(argptr, const wxChar *);
#ifdef __INTELC__
#pragma warning(pop)
#endif
if ( !ext )
{
// NULL terminates the list
break;
}
m_exts.Add(ext);
}
va_end(argptr);
}
wxFileTypeInfo::wxFileTypeInfo(const wxArrayString& sArray)
{
m_mimeType = sArray [0u];
m_openCmd = sArray [1u];
m_printCmd = sArray [2u];
m_desc = sArray [3u];
size_t count = sArray.GetCount();
for ( size_t i = 4; i < count; i++ )
{
m_exts.Add(sArray[i]);
}
}
#include "wx/arrimpl.cpp"
WX_DEFINE_OBJARRAY(wxArrayFileTypeInfo)
// ============================================================================
// implementation of the wrapper classes
// ============================================================================
// ----------------------------------------------------------------------------
// wxFileType
// ----------------------------------------------------------------------------
/* static */
wxString wxFileType::ExpandCommand(const wxString& command,
const wxFileType::MessageParameters& params)
{
bool hasFilename = false;
wxString str;
for ( const wxChar *pc = command.c_str(); *pc != wxT('\0'); pc++ ) {
if ( *pc == wxT('%') ) {
switch ( *++pc ) {
case wxT('s'):
// '%s' expands into file name (quoted because it might
// contain spaces) - except if there are already quotes
// there because otherwise some programs may get confused
// by double double quotes
#if 0
if ( *(pc - 2) == wxT('"') )
str << params.GetFileName();
else
str << wxT('"') << params.GetFileName() << wxT('"');
#endif
str << params.GetFileName();
hasFilename = true;
break;
case wxT('t'):
// '%t' expands into MIME type (quote it too just to be
// consistent)
str << wxT('\'') << params.GetMimeType() << wxT('\'');
break;
case wxT('{'):
{
const wxChar *pEnd = wxStrchr(pc, wxT('}'));
if ( pEnd == NULL ) {
wxString mimetype;
wxLogWarning(_("Unmatched '{' in an entry for mime type %s."),
params.GetMimeType().c_str());
str << wxT("%{");
}
else {
wxString param(pc + 1, pEnd - pc - 1);
str << wxT('\'') << params.GetParamValue(param) << wxT('\'');
pc = pEnd;
}
}
break;
case wxT('n'):
case wxT('F'):
// TODO %n is the number of parts, %F is an array containing
// the names of temp files these parts were written to
// and their mime types.
break;
default:
wxLogDebug(wxT("Unknown field %%%c in command '%s'."),
*pc, command.c_str());
str << *pc;
}
}
else {
str << *pc;
}
}
// metamail(1) man page states that if the mailcap entry doesn't have '%s'
// the program will accept the data on stdin so normally we should append
// "< %s" to the end of the command in such case, but not all commands
// behave like this, in particular a common test is 'test -n "$DISPLAY"'
// and appending "< %s" to this command makes the test fail... I don't
// know of the correct solution, try to guess what we have to do.
// test now carried out on reading file so test should never get here
if ( !hasFilename && !str.empty()
#ifdef __UNIX__
&& !str.StartsWith(_T("test "))
#endif // Unix
) {
str << wxT(" < '") << params.GetFileName() << wxT('\'');
}
return str;
}
wxFileType::wxFileType(const wxFileTypeInfo& info)
{
m_info = &info;
m_impl = NULL;
}
wxFileType::wxFileType()
{
m_info = NULL;
m_impl = new wxFileTypeImpl;
}
wxFileType::~wxFileType()
{
if ( m_impl )
delete m_impl;
}
bool wxFileType::GetExtensions(wxArrayString& extensions)
{
if ( m_info )
{
extensions = m_info->GetExtensions();
return true;
}
return m_impl->GetExtensions(extensions);
}
bool wxFileType::GetMimeType(wxString *mimeType) const
{
wxCHECK_MSG( mimeType, false, _T("invalid parameter in GetMimeType") );
if ( m_info )
{
*mimeType = m_info->GetMimeType();
return true;
}
return m_impl->GetMimeType(mimeType);
}
bool wxFileType::GetMimeTypes(wxArrayString& mimeTypes) const
{
if ( m_info )
{
mimeTypes.Clear();
mimeTypes.Add(m_info->GetMimeType());
return true;
}
return m_impl->GetMimeTypes(mimeTypes);
}
bool wxFileType::GetIcon(wxIconLocation *iconLoc) const
{
if ( m_info )
{
if ( iconLoc )
{
iconLoc->SetFileName(m_info->GetIconFile());
#ifdef __WXMSW__
iconLoc->SetIndex(m_info->GetIconIndex());
#endif // __WXMSW__
}
return true;
}
return m_impl->GetIcon(iconLoc);
}
bool
wxFileType::GetIcon(wxIconLocation *iconloc,
const MessageParameters& params) const
{
if ( !GetIcon(iconloc) )
{
return false;
}
// we may have "%s" in the icon location string, at least under Windows, so
// expand this
if ( iconloc )
{
iconloc->SetFileName(ExpandCommand(iconloc->GetFileName(), params));
}
return true;
}
bool wxFileType::GetDescription(wxString *desc) const
{
wxCHECK_MSG( desc, false, _T("invalid parameter in GetDescription") );
if ( m_info )
{
*desc = m_info->GetDescription();
return true;
}
return m_impl->GetDescription(desc);
}
bool
wxFileType::GetOpenCommand(wxString *openCmd,
const wxFileType::MessageParameters& params) const
{
wxCHECK_MSG( openCmd, false, _T("invalid parameter in GetOpenCommand") );
if ( m_info )
{
*openCmd = ExpandCommand(m_info->GetOpenCommand(), params);
return true;
}
return m_impl->GetOpenCommand(openCmd, params);
}
wxString wxFileType::GetOpenCommand(const wxString& filename) const
{
wxString cmd;
if ( !GetOpenCommand(&cmd, filename) )
{
// return empty string to indicate an error
cmd.clear();
}
return cmd;
}
bool
wxFileType::GetPrintCommand(wxString *printCmd,
const wxFileType::MessageParameters& params) const
{
wxCHECK_MSG( printCmd, false, _T("invalid parameter in GetPrintCommand") );
if ( m_info )
{
*printCmd = ExpandCommand(m_info->GetPrintCommand(), params);
return true;
}
return m_impl->GetPrintCommand(printCmd, params);
}
size_t wxFileType::GetAllCommands(wxArrayString *verbs,
wxArrayString *commands,
const wxFileType::MessageParameters& params) const
{
if ( verbs )
verbs->Clear();
if ( commands )
commands->Clear();
#if defined (__WXMSW__) || defined(__UNIX__)
return m_impl->GetAllCommands(verbs, commands, params);
#else // !__WXMSW__ || Unix
// we don't know how to retrieve all commands, so just try the 2 we know
// about
size_t count = 0;
wxString cmd;
if ( GetOpenCommand(&cmd, params) )
{
if ( verbs )
verbs->Add(_T("Open"));
if ( commands )
commands->Add(cmd);
count++;
}
if ( GetPrintCommand(&cmd, params) )
{
if ( verbs )
verbs->Add(_T("Print"));
if ( commands )
commands->Add(cmd);
count++;
}
return count;
#endif // __WXMSW__/| __UNIX__
}
bool wxFileType::Unassociate()
{
#if defined(__WXMSW__)
return m_impl->Unassociate();
#elif defined(__UNIX__)
return m_impl->Unassociate(this);
#else
wxFAIL_MSG( _T("not implemented") ); // TODO
return false;
#endif
}
bool wxFileType::SetCommand(const wxString& cmd,
const wxString& verb,
bool overwriteprompt)
{
#if defined (__WXMSW__) || defined(__UNIX__)
return m_impl->SetCommand(cmd, verb, overwriteprompt);
#else
wxUnusedVar(cmd);
wxUnusedVar(verb);
wxUnusedVar(overwriteprompt);
wxFAIL_MSG(_T("not implemented"));
return false;
#endif
}
bool wxFileType::SetDefaultIcon(const wxString& cmd, int index)
{
wxString sTmp = cmd;
#ifdef __WXMSW__
// VZ: should we do this?
// chris elliott : only makes sense in MS windows
if ( sTmp.empty() )
GetOpenCommand(&sTmp, wxFileType::MessageParameters(wxEmptyString, wxEmptyString));
#endif
wxCHECK_MSG( !sTmp.empty(), false, _T("need the icon file") );
#if defined (__WXMSW__) || defined(__UNIX__)
return m_impl->SetDefaultIcon (cmd, index);
#else
wxUnusedVar(index);
wxFAIL_MSG(_T("not implemented"));
return false;
#endif
}
//----------------------------------------------------------------------------
// wxMimeTypesManagerFactory
//----------------------------------------------------------------------------
wxMimeTypesManagerFactory *wxMimeTypesManagerFactory::m_factory = NULL;
/* static */
void wxMimeTypesManagerFactory::SetFactory( wxMimeTypesManagerFactory *factory )
{
if (wxMimeTypesManagerFactory::m_factory)
delete wxMimeTypesManagerFactory::m_factory;
wxMimeTypesManagerFactory::m_factory = factory;
}
/* static */
wxMimeTypesManagerFactory *wxMimeTypesManagerFactory::GetFactory()
{
if (!wxMimeTypesManagerFactory::m_factory)
wxMimeTypesManagerFactory::m_factory = new wxMimeTypesManagerFactory;
return wxMimeTypesManagerFactory::m_factory;
}
wxMimeTypesManagerImpl *wxMimeTypesManagerFactory::CreateMimeTypesManagerImpl()
{
return new wxMimeTypesManagerImpl;
}
// ----------------------------------------------------------------------------
// wxMimeTypesManager
// ----------------------------------------------------------------------------
void wxMimeTypesManager::EnsureImpl()
{
if ( !m_impl )
m_impl = wxMimeTypesManagerFactory::GetFactory()->CreateMimeTypesManagerImpl();
}
bool wxMimeTypesManager::IsOfType(const wxString& mimeType,
const wxString& wildcard)
{
wxASSERT_MSG( mimeType.Find(wxT('*')) == wxNOT_FOUND,
wxT("first MIME type can't contain wildcards") );
// all comparaisons are case insensitive (2nd arg of IsSameAs() is false)
if ( wildcard.BeforeFirst(wxT('/')).
IsSameAs(mimeType.BeforeFirst(wxT('/')), false) )
{
wxString strSubtype = wildcard.AfterFirst(wxT('/'));
if ( strSubtype == wxT("*") ||
strSubtype.IsSameAs(mimeType.AfterFirst(wxT('/')), false) )
{
// matches (either exactly or it's a wildcard)
return true;
}
}
return false;
}
wxMimeTypesManager::wxMimeTypesManager()
{
m_impl = NULL;
}
wxMimeTypesManager::~wxMimeTypesManager()
{
if ( m_impl )
delete m_impl;
}
bool wxMimeTypesManager::Unassociate(wxFileType *ft)
{
#if defined(__UNIX__) && !defined(__CYGWIN__) && !defined(__WINE__)
return m_impl->Unassociate(ft);
#else
return ft->Unassociate();
#endif
}
wxFileType *
wxMimeTypesManager::Associate(const wxFileTypeInfo& ftInfo)
{
EnsureImpl();
#if defined(__WXMSW__) || defined(__UNIX__)
return m_impl->Associate(ftInfo);
#else // other platforms
wxUnusedVar(ftInfo);
wxFAIL_MSG( _T("not implemented") ); // TODO
return NULL;
#endif // platforms
}
wxFileType *
wxMimeTypesManager::GetFileTypeFromExtension(const wxString& ext)
{
EnsureImpl();
wxFileType *ft = m_impl->GetFileTypeFromExtension(ext);
if ( !ft ) {
// check the fallbacks
//
// TODO linear search is potentially slow, perhaps we should use a
// sorted array?
size_t count = m_fallbacks.GetCount();
for ( size_t n = 0; n < count; n++ ) {
if ( m_fallbacks[n].GetExtensions().Index(ext) != wxNOT_FOUND ) {
ft = new wxFileType(m_fallbacks[n]);
break;
}
}
}
return ft;
}
wxFileType *
wxMimeTypesManager::GetFileTypeFromMimeType(const wxString& mimeType)
{
EnsureImpl();
wxFileType *ft = m_impl->GetFileTypeFromMimeType(mimeType);
if ( !ft ) {
// check the fallbacks
//
// TODO linear search is potentially slow, perhaps we should use a
// sorted array?
size_t count = m_fallbacks.GetCount();
for ( size_t n = 0; n < count; n++ ) {
if ( wxMimeTypesManager::IsOfType(mimeType,
m_fallbacks[n].GetMimeType()) ) {
ft = new wxFileType(m_fallbacks[n]);
break;
}
}
}
return ft;
}
bool wxMimeTypesManager::ReadMailcap(const wxString& filename, bool fallback)
{
EnsureImpl();
return m_impl->ReadMailcap(filename, fallback);
}
bool wxMimeTypesManager::ReadMimeTypes(const wxString& filename)
{
EnsureImpl();
return m_impl->ReadMimeTypes(filename);
}
void wxMimeTypesManager::AddFallbacks(const wxFileTypeInfo *filetypes)
{
EnsureImpl();
for ( const wxFileTypeInfo *ft = filetypes; ft && ft->IsValid(); ft++ ) {
AddFallback(*ft);
}
}
size_t wxMimeTypesManager::EnumAllFileTypes(wxArrayString& mimetypes)
{
EnsureImpl();
size_t countAll = m_impl->EnumAllFileTypes(mimetypes);
// add the fallback filetypes
size_t count = m_fallbacks.GetCount();
for ( size_t n = 0; n < count; n++ ) {
if ( mimetypes.Index(m_fallbacks[n].GetMimeType()) == wxNOT_FOUND ) {
mimetypes.Add(m_fallbacks[n].GetMimeType());
countAll++;
}
}
return countAll;
}
void wxMimeTypesManager::Initialize(int mcapStyle,
const wxString& sExtraDir)
{
#if defined(__UNIX__) && !defined(__CYGWIN__) && !defined(__WINE__)
EnsureImpl();
m_impl->Initialize(mcapStyle, sExtraDir);
#else
(void)mcapStyle;
(void)sExtraDir;
#endif // Unix
}
// and this function clears all the data from the manager
void wxMimeTypesManager::ClearData()
{
#if defined(__UNIX__) && !defined(__CYGWIN__) && !defined(__WINE__)
EnsureImpl();
m_impl->ClearData();
#endif // Unix
}
// ----------------------------------------------------------------------------
// global data and wxMimeTypeCmnModule
// ----------------------------------------------------------------------------
// private object
static wxMimeTypesManager gs_mimeTypesManager;
// and public pointer
wxMimeTypesManager *wxTheMimeTypesManager = &gs_mimeTypesManager;
class wxMimeTypeCmnModule: public wxModule
{
public:
wxMimeTypeCmnModule() : wxModule() { }
virtual bool OnInit() { return true; }
virtual void OnExit()
{
// this avoids false memory leak allerts:
if ( gs_mimeTypesManager.m_impl != NULL )
{
delete gs_mimeTypesManager.m_impl;
gs_mimeTypesManager.m_impl = NULL;
gs_mimeTypesManager.m_fallbacks.Clear();
}
}
DECLARE_DYNAMIC_CLASS(wxMimeTypeCmnModule)
};
IMPLEMENT_DYNAMIC_CLASS(wxMimeTypeCmnModule, wxModule)
#endif // wxUSE_MIMETYPE
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