X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/da61ab3189f71a2b0913bac13c48755c5d038037..616c0d1f3ac084bb92f0a75dc48812e8647f1b22:/include/wx/mimetype.h diff --git a/include/wx/mimetype.h b/include/wx/mimetype.h index 18680f3afc..0bffcb0fee 100644 --- a/include/wx/mimetype.h +++ b/include/wx/mimetype.h @@ -3,32 +3,310 @@ // 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 -// Licence: wxWindows license (part of wxExtra library) +// Licence: wxWindows licence (part of wxExtra library) ///////////////////////////////////////////////////////////////////////////// -#ifndef _MIMETYPE_H -#define _MIMETYPE_H +#ifndef _WX_MIMETYPE_H_ +#define _WX_MIMETYPE_H_ -// fwd decls -class wxIcon; -class wxFileTypeImpl; -class wxMimeTypesManagerImpl; +// ---------------------------------------------------------------------------- +// headers and such +// ---------------------------------------------------------------------------- + +#include "wx/defs.h" + +#if wxUSE_MIMETYPE // the things we really need #include "wx/string.h" +#include "wx/dynarray.h" +#include "wx/arrstr.h" + +#include + +// fwd decls +class WXDLLIMPEXP_FWD_BASE wxIconLocation; +class WXDLLIMPEXP_FWD_BASE wxFileTypeImpl; +class WXDLLIMPEXP_FWD_BASE wxMimeTypesManagerImpl; + +// these constants define the MIME informations source under UNIX and are used +// by wxMimeTypesManager::Initialize() +enum wxMailcapStyle +{ + wxMAILCAP_STANDARD = 1, + wxMAILCAP_NETSCAPE = 2, + wxMAILCAP_KDE = 4, + wxMAILCAP_GNOME = 8, + + wxMAILCAP_ALL = 15 +}; + +/* + TODO: would it be more convenient to have this class? + +class WXDLLIMPEXP_BASE wxMimeType : public wxString +{ +public: + // all string ctors here + + wxString GetType() const { return BeforeFirst(wxT('/')); } + wxString GetSubType() const { return AfterFirst(wxT('/')); } + + void SetSubType(const wxString& subtype) + { + *this = GetType() + wxT('/') + subtype; + } + + bool Matches(const wxMimeType& wildcard) + { + // implement using wxMimeTypesManager::IsOfType() + } +}; + +*/ + +// wxMimeTypeCommands stores the verbs defined for the given MIME type with +// their values +class WXDLLIMPEXP_BASE wxMimeTypeCommands +{ +public: + wxMimeTypeCommands() {} + + wxMimeTypeCommands(const wxArrayString& verbs, + const wxArrayString& commands) + : m_verbs(verbs), + m_commands(commands) + { + } + + // add a new verb with the command or replace the old value + void AddOrReplaceVerb(const wxString& verb, const wxString& cmd); + void Add(const wxString& s) + { + m_verbs.Add(s.BeforeFirst(wxT('='))); + m_commands.Add(s.AfterFirst(wxT('='))); + } + + // access the commands + size_t GetCount() const { return m_verbs.GetCount(); } + const wxString& GetVerb(size_t n) const { return m_verbs[n]; } + const wxString& GetCmd(size_t n) const { return m_commands[n]; } + + bool HasVerb(const wxString& verb) const + { return m_verbs.Index(verb) != wxNOT_FOUND; } + + // returns empty string and wxNOT_FOUND in idx if no such verb + wxString GetCommandForVerb(const wxString& verb, size_t *idx = NULL) const; + + // get a "verb=command" string + wxString GetVerbCmd(size_t n) const; + +private: + wxArrayString m_verbs; + wxArrayString m_commands; +}; + +// ---------------------------------------------------------------------------- +// wxFileTypeInfo: static container of information accessed via wxFileType. +// +// This class is used with wxMimeTypesManager::AddFallbacks() and Associate() +// ---------------------------------------------------------------------------- + +class WXDLLIMPEXP_BASE wxFileTypeInfo +{ +private: + void DoVarArgInit(const wxString& mimeType, + const wxString& openCmd, + const wxString& printCmd, + const wxString& desc, + va_list argptr); + + void VarArgInit(const wxString *mimeType, + const wxString *openCmd, + const wxString *printCmd, + const wxString *desc, + // the other parameters form a NULL terminated list of + // extensions + ...); + +public: + // NB: This is a helper to get implicit conversion of variadic ctor's + // fixed arguments into something that can be passed to VarArgInit(). + // Do not use, it's used by the ctor only. + struct CtorString + { + CtorString(const char *str) : m_str(str) {} + CtorString(const wchar_t *str) : m_str(str) {} + CtorString(const wxString& str) : m_str(str) {} + CtorString(const wxCStrData& str) : m_str(str) {} + CtorString(const wxScopedCharBuffer& str) : m_str(str) {} + CtorString(const wxScopedWCharBuffer& str) : m_str(str) {} + + operator const wxString*() const { return &m_str; } + + wxString m_str; + }; + + // ctors + + // Ctor specifying just the MIME type (which is mandatory), the other + // fields can be set later if needed. + wxFileTypeInfo(const wxString& mimeType) + : m_mimeType(mimeType) + { + } + + // Ctor allowing to specify the values of all fields at once: + // + // wxFileTypeInfo(const wxString& mimeType, + // const wxString& openCmd, + // const wxString& printCmd, + // const wxString& desc, + // // the other parameters form a list of extensions for this + // // file type and should be terminated with wxNullPtr (not + // // just NULL!) + // ...); + WX_DEFINE_VARARG_FUNC_CTOR(wxFileTypeInfo, + 4, (const CtorString&, + const CtorString&, + const CtorString&, + const CtorString&), + VarArgInit, VarArgInit) +#ifdef __WATCOMC__ + // workaround for http://bugzilla.openwatcom.org/show_bug.cgi?id=351 + WX_VARARG_WATCOM_WORKAROUND_CTOR( + wxFileTypeInfo, + 4, (const wxString&, + const wxString&, + const wxString&, + const wxString&), + (CtorString(f1), + CtorString(f2), + CtorString(f3), + CtorString(f4))); + WX_VARARG_WATCOM_WORKAROUND_CTOR( + wxFileTypeInfo, + 4, (const wxCStrData&, + const wxCStrData&, + const wxCStrData&, + const wxCStrData&), + (CtorString(f1), + CtorString(f2), + CtorString(f3), + CtorString(f4))); + WX_VARARG_WATCOM_WORKAROUND_CTOR( + wxFileTypeInfo, + 4, (const char*, + const char*, + const char*, + const char*), + (CtorString(f1), + CtorString(f2), + CtorString(f3), + CtorString(f4))); + WX_VARARG_WATCOM_WORKAROUND_CTOR( + wxFileTypeInfo, + 4, (const wchar_t*, + const wchar_t*, + const wchar_t*, + const wchar_t*), + (CtorString(f1), + CtorString(f2), + CtorString(f3), + CtorString(f4))); +#endif + + // the array elements correspond to the parameters of the ctor above in + // the same order + wxFileTypeInfo(const wxArrayString& sArray); + // invalid item - use this to terminate the array passed to + // wxMimeTypesManager::AddFallbacks + wxFileTypeInfo() { } + + // test if this object can be used + bool IsValid() const { return !m_mimeType.empty(); } + + // setters + // set the open/print commands + void SetOpenCommand(const wxString& command) { m_openCmd = command; } + void SetPrintCommand(const wxString& command) { m_printCmd = command; } + + // set the description + void SetDescription(const wxString& desc) { m_desc = desc; } + + // add another extension corresponding to this file type + void AddExtension(const wxString& ext) { m_exts.push_back(ext); } + + // set the icon info + void SetIcon(const wxString& iconFile, int iconIndex = 0) + { + m_iconFile = iconFile; + m_iconIndex = iconIndex; + } + // set the short desc + void SetShortDesc(const wxString& shortDesc) { m_shortDesc = shortDesc; } + + // accessors + // get the MIME type + const wxString& GetMimeType() const { return m_mimeType; } + // get the open command + const wxString& GetOpenCommand() const { return m_openCmd; } + // get the print command + const wxString& GetPrintCommand() const { return m_printCmd; } + // get the short description (only used under Win32 so far) + const wxString& GetShortDesc() const { return m_shortDesc; } + // get the long, user visible description + const wxString& GetDescription() const { return m_desc; } + // get the array of all extensions + const wxArrayString& GetExtensions() const { return m_exts; } + size_t GetExtensionsCount() const {return m_exts.GetCount(); } + // get the icon info + const wxString& GetIconFile() const { return m_iconFile; } + int GetIconIndex() const { return m_iconIndex; } + +private: + wxString m_mimeType, // the MIME type in "type/subtype" form + m_openCmd, // command to use for opening the file (%s allowed) + m_printCmd, // command to use for printing the file (%s allowed) + m_shortDesc, // a short string used in the registry + m_desc; // a free form description of this file type + + // icon stuff + wxString m_iconFile; // the file containing the icon + int m_iconIndex; // icon index in this file + + wxArrayString m_exts; // the extensions which are mapped on this filetype + + +#if 0 // TODO + // the additional (except "open" and "print") command names and values + wxArrayString m_commandNames, + m_commandValues; +#endif // 0 +}; + +WX_DECLARE_USER_EXPORTED_OBJARRAY(wxFileTypeInfo, wxArrayFileTypeInfo, + WXDLLIMPEXP_BASE); + +// ---------------------------------------------------------------------------- +// wxFileType: gives access to all information about the files of given type. +// // This class holds information about a given "file type". File type is the // same as MIME type under Unix, but under Windows it corresponds more to an // extension than to MIME type (in fact, several extensions may correspond to a // file type). This object may be created in many different ways and depending // on how it was created some fields may be unknown so the return value of all // the accessors *must* be checked! -class wxFileType +// ---------------------------------------------------------------------------- + +class WXDLLIMPEXP_BASE wxFileType { -friend wxMimeTypesManagerImpl; // it has access to m_impl +friend class WXDLLIMPEXP_FWD_BASE wxMimeTypesManagerImpl; // it has access to m_impl public: // An object of this class must be passed to Get{Open|Print}Command. The @@ -40,7 +318,8 @@ public: public: // ctors MessageParameters() { } - MessageParameters(const wxString& filename, const wxString& mimetype) + MessageParameters(const wxString& filename, + const wxString& mimetype = wxEmptyString) : m_filename(filename), m_mimetype(mimetype) { } // accessors (called by GetOpenCommand) @@ -50,8 +329,8 @@ public: const wxString& GetMimeType() const { return m_mimetype; } // override this function in derived class - virtual wxString GetParamValue(const wxString& WXUNUSED(paramName)) const - { return ""; } + virtual wxString GetParamValue(const wxString& WXUNUSED(name)) const + { return wxEmptyString; } // virtual dtor as in any base class virtual ~MessageParameters() { } @@ -60,16 +339,22 @@ public: wxString m_filename, m_mimetype; }; + // ctor from static data + wxFileType(const wxFileTypeInfo& ftInfo); + // accessors: all of them return true if the corresponding information // could be retrieved/found, false otherwise (and in this case all [out] // parameters are unchanged) // return the MIME type for this file type bool GetMimeType(wxString *mimeType) const; + bool GetMimeTypes(wxArrayString& mimeTypes) const; // fill passed in array with all extensions associated with this file // type bool GetExtensions(wxArrayString& extensions); - // get the icon corresponding to this file type - bool GetIcon(wxIcon *icon) const; + // get the icon corresponding to this file type and of the given size + bool GetIcon(wxIconLocation *iconloc) const; + bool GetIcon(wxIconLocation *iconloc, + const MessageParameters& params) const; // get a brief file type description ("*.txt" => "text document") bool GetDescription(wxString *desc) const; @@ -77,13 +362,34 @@ public: // get the command to execute the file of given type bool GetOpenCommand(wxString *openCmd, const MessageParameters& params) const; + // a simpler to use version of GetOpenCommand() -- it only takes the + // filename and returns an empty string on failure + wxString GetOpenCommand(const wxString& filename) const; // get the command to print the file of given type bool GetPrintCommand(wxString *printCmd, const MessageParameters& params) const; + + // return the number of commands defined for this file type, 0 if none + size_t GetAllCommands(wxArrayString *verbs, wxArrayString *commands, + const wxFileType::MessageParameters& params) const; + + // set an arbitrary command, ask confirmation if it already exists and + // overwriteprompt is true + bool SetCommand(const wxString& cmd, const wxString& verb, + bool overwriteprompt = true); + + bool SetDefaultIcon(const wxString& cmd = wxEmptyString, int index = 0); + + + // remove the association for this filetype from the system MIME database: + // notice that it will only work if the association is defined in the user + // file/registry part, we will never modify the system-wide settings + bool Unassociate(); + // operations // expand a string in the format of GetOpenCommand (which may contain - // '%s' and '%t' format specificators for the file name and mime type + // '%s' and '%t' format specifiers for the file name and mime type // and %{param} constructions). static wxString ExpandCommand(const wxString& command, const MessageParameters& params); @@ -99,29 +405,71 @@ private: wxFileType(const wxFileType&); wxFileType& operator=(const wxFileType&); + // the static container of wxFileType data: if it's not NULL, it means that + // this object is used as fallback only + const wxFileTypeInfo *m_info; + + // the object which implements the real stuff like reading and writing + // to/from system MIME database wxFileTypeImpl *m_impl; }; +//---------------------------------------------------------------------------- +// wxMimeTypesManagerFactory +//---------------------------------------------------------------------------- + +class WXDLLIMPEXP_BASE wxMimeTypesManagerFactory +{ +public: + wxMimeTypesManagerFactory() {} + virtual ~wxMimeTypesManagerFactory() {} + + virtual wxMimeTypesManagerImpl *CreateMimeTypesManagerImpl(); + + static void Set( wxMimeTypesManagerFactory *factory ); + static wxMimeTypesManagerFactory *Get(); + +private: + static wxMimeTypesManagerFactory *m_factory; +}; + +// ---------------------------------------------------------------------------- +// wxMimeTypesManager: interface to system MIME database. +// // This class accesses the information about all known MIME types and allows // the application to retrieve information (including how to handle data of // given type) about them. -// -// NB: currently it doesn't support modifying MIME database (read-only access). -class wxMimeTypesManager +// ---------------------------------------------------------------------------- + +class WXDLLIMPEXP_BASE wxMimeTypesManager { public: // static helper functions // ----------------------- - // check if the given MIME type is the same as the other one: the second - // argument may contain wildcards ('*'), but not the first. If the - // types are equal or if the mimeType matches wildcard the function - // returns TRUE, otherwise it returns FALSE + // check if the given MIME type is the same as the other one: the + // second argument may contain wildcards ('*'), but not the first. If + // the types are equal or if the mimeType matches wildcard the function + // returns true, otherwise it returns false static bool IsOfType(const wxString& mimeType, const wxString& wildcard); // ctor wxMimeTypesManager(); + // NB: the following 2 functions are for Unix only and don't do anything + // elsewhere + + // loads data from standard files according to the mailcap styles + // specified: this is a bitwise OR of wxMailcapStyle values + // + // use the extraDir parameter if you want to look for files in another + // directory + void Initialize(int mailcapStyle = wxMAILCAP_ALL, + const wxString& extraDir = wxEmptyString); + + // and this function clears all the data from the manager + void ClearData(); + // Database lookup: all functions return a pointer to wxFileType object // whose methods may be used to query it for the information you're // interested in. If the return value is !NULL, caller is responsible for @@ -131,12 +479,28 @@ public: // get file type from MIME type (in format /) wxFileType *GetFileTypeFromMimeType(const wxString& mimeType); - // other operations - // read in additional file (the standard ones are read automatically) - // in mailcap format (see mimetype.cpp for description) - void ReadMailcap(const wxString& filename); - // read in additional file in mime.types format - void ReadMimeTypes(const wxString& filename); + // enumerate all known MIME types + // + // returns the number of retrieved file types + size_t EnumAllFileTypes(wxArrayString& mimetypes); + + // these functions can be used to provide default values for some of the + // MIME types inside the program itself + // + // The filetypes array should be terminated by either NULL entry or an + // invalid wxFileTypeInfo (i.e. the one created with default ctor) + void AddFallbacks(const wxFileTypeInfo *filetypes); + void AddFallback(const wxFileTypeInfo& ft) { m_fallbacks.Add(ft); } + + // create or remove associations + + // create a new association using the fields of wxFileTypeInfo (at least + // the MIME type and the extension should be set) + // if the other fields are empty, the existing values should be left alone + wxFileType *Associate(const wxFileTypeInfo& ftInfo); + + // undo Associate() + bool Unassociate(wxFileType *ft) ; // dtor (not virtual, shouldn't be derived from) ~wxMimeTypesManager(); @@ -146,9 +510,28 @@ private: wxMimeTypesManager(const wxMimeTypesManager&); wxMimeTypesManager& operator=(const wxMimeTypesManager&); + // the fallback info which is used if the information is not found in the + // real system database + wxArrayFileTypeInfo m_fallbacks; + + // the object working with the system MIME database wxMimeTypesManagerImpl *m_impl; + + // if m_impl is NULL, create one + void EnsureImpl(); + + friend class wxMimeTypeCmnModule; }; -#endif //_MIMETYPE_H -/* vi: set cin tw=80 ts=4 sw=4: */ +// ---------------------------------------------------------------------------- +// global variables +// ---------------------------------------------------------------------------- + +// the default mime manager for wxWidgets programs +extern WXDLLIMPEXP_DATA_BASE(wxMimeTypesManager *) wxTheMimeTypesManager; + +#endif // wxUSE_MIMETYPE + +#endif + //_WX_MIMETYPE_H_