X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/a62848fdba49396eba4f52c037d2dc82130274b4..e0954e729dabaad5603d9970d123d6b96ed73463:/src/common/filesys.cpp diff --git a/src/common/filesys.cpp b/src/common/filesys.cpp index bfc82fbab6..94a229f49c 100644 --- a/src/common/filesys.cpp +++ b/src/common/filesys.cpp @@ -1,5 +1,5 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: filesys.cpp +// Name: src/common/filesys.cpp // Purpose: wxFileSystem class - interface for opening files // Author: Vaclav Slavik // Copyright: (c) 1999 Vaclav Slavik @@ -7,25 +7,27 @@ // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// -#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) -#pragma implementation "filesys.h" -#endif - #include "wx/wxprec.h" #ifdef __BORLANDC__ -#pragma hdrstop + #pragma hdrstop #endif #if wxUSE_FILESYSTEM -#include "wx/wfstream.h" -#include "wx/module.h" #include "wx/filesys.h" + +#ifndef WX_PRECOMP + #include "wx/log.h" + #include "wx/module.h" +#endif + +#include "wx/wfstream.h" #include "wx/mimetype.h" #include "wx/filename.h" -#include "wx/log.h" +#include "wx/tokenzr.h" +#include "wx/private/fileback.h" //-------------------------------------------------------------------------------- @@ -39,8 +41,8 @@ wxString wxFileSystemHandler::GetMimeTypeFromExt(const wxString& location) { wxString ext, mime; wxString loc = GetRightLocation(location); - char c; - int l = loc.Length(), l2; + wxChar c; + int l = loc.length(), l2; l2 = l; for (int i = l-1; i >= 0; i--) @@ -64,30 +66,30 @@ wxString wxFileSystemHandler::GetMimeTypeFromExt(const wxString& location) static const wxFileTypeInfo fallbacks[] = { wxFileTypeInfo(_T("image/jpeg"), - _T(""), - _T(""), + wxEmptyString, + wxEmptyString, _T("JPEG image (from fallback)"), - _T("jpg"), _T("jpeg"), _T("JPG"), _T("JPEG"), NULL), + _T("jpg"), _T("jpeg"), _T("JPG"), _T("JPEG"), 0), wxFileTypeInfo(_T("image/gif"), - _T(""), - _T(""), + wxEmptyString, + wxEmptyString, _T("GIF image (from fallback)"), - _T("gif"), _T("GIF"), NULL), + _T("gif"), _T("GIF"), 0), wxFileTypeInfo(_T("image/png"), - _T(""), - _T(""), + wxEmptyString, + wxEmptyString, _T("PNG image (from fallback)"), - _T("png"), _T("PNG"), NULL), + _T("png"), _T("PNG"), 0), wxFileTypeInfo(_T("image/bmp"), - _T(""), - _T(""), + wxEmptyString, + wxEmptyString, _T("windows bitmap image (from fallback)"), - _T("bmp"), _T("BMP"), NULL), + _T("bmp"), _T("BMP"), 0), wxFileTypeInfo(_T("text/html"), - _T(""), - _T(""), + wxEmptyString, + wxEmptyString, _T("HTML document (from fallback)"), - _T("htm"), _T("html"), _T("HTM"), _T("HTML"), NULL), + _T("htm"), _T("html"), _T("HTM"), _T("HTML"), 0), // must terminate the table with this! wxFileTypeInfo() }; @@ -124,7 +126,7 @@ wxString wxFileSystemHandler::GetMimeTypeFromExt(const wxString& location) wxString wxFileSystemHandler::GetProtocol(const wxString& location) const { wxString s = wxEmptyString; - int i, l = location.Length(); + int i, l = location.length(); bool fnd = false; for (i = l-1; (i >= 0) && ((location[i] != wxT('#')) || (!fnd)); i--) { @@ -141,7 +143,7 @@ wxString wxFileSystemHandler::GetLeftLocation(const wxString& location) const int i; bool fnd = false; - for (i = location.Length()-1; i >= 0; i--) { + for (i = location.length()-1; i >= 0; i--) { if ((location[i] == wxT(':')) && (i != 1 /*win: C:\path*/)) fnd = true; else if (fnd && (location[i] == wxT('#'))) return location.Left(i); } @@ -150,7 +152,7 @@ wxString wxFileSystemHandler::GetLeftLocation(const wxString& location) const wxString wxFileSystemHandler::GetRightLocation(const wxString& location) const { - int i, l = location.Length(); + int i, l = location.length(); int l2 = l + 1; for (i = l-1; @@ -166,8 +168,8 @@ wxString wxFileSystemHandler::GetRightLocation(const wxString& location) const wxString wxFileSystemHandler::GetAnchor(const wxString& location) const { - char c; - int l = location.Length(); + wxChar c; + int l = location.length(); for (int i = l-1; i >= 0; i--) { c = location[i]; @@ -213,7 +215,13 @@ wxFSFile* wxLocalFSHandler::OpenFile(wxFileSystem& WXUNUSED(fs), const wxString& // we need to check whether we can really read from this file, otherwise // wxFSFile is not going to work +#if wxUSE_FILE + wxFileInputStream *is = new wxFileInputStream(fullpath); +#elif wxUSE_FFILE wxFFileInputStream *is = new wxFFileInputStream(fullpath); +#else +#error One of wxUSE_FILE or wxUSE_FFILE must be set to 1 for wxFSHandler to work +#endif if ( !is->Ok() ) { delete is; @@ -254,13 +262,19 @@ IMPLEMENT_ABSTRACT_CLASS(wxFSFile, wxObject) wxList wxFileSystem::m_Handlers; +wxFileSystem::~wxFileSystem() +{ + WX_CLEAR_HASH_MAP(wxFSHandlerHash, m_LocalHandlers) +} + + static wxString MakeCorrectPath(const wxString& path) { wxString p(path); wxString r; int i, j, cnt; - cnt = p.Length(); + cnt = p.length(); for (i = 0; i < cnt; i++) if (p.GetChar(i) == wxT('\\')) p.GetWritableChar(i) = wxT('/'); // Want to be windows-safe @@ -279,7 +293,7 @@ static wxString MakeCorrectPath(const wxString& path) r << p.GetChar(i); if (p.GetChar(i) == wxT('/') && p.GetChar(i-1) == wxT('.') && p.GetChar(i-2) == wxT('.')) { - for (j = r.Length() - 2; j >= 0 && r.GetChar(j) != wxT('/') && r.GetChar(j) != wxT(':'); j--) {} + for (j = r.length() - 2; j >= 0 && r.GetChar(j) != wxT('/') && r.GetChar(j) != wxT(':'); j--) {} if (j >= 0 && r.GetChar(j) != wxT(':')) { for (j = j - 1; j >= 0 && r.GetChar(j) != wxT('/') && r.GetChar(j) != wxT(':'); j--) {} @@ -302,13 +316,13 @@ void wxFileSystem::ChangePathTo(const wxString& location, bool is_dir) if (is_dir) { - if (m_Path.Length() > 0 && m_Path.Last() != wxT('/') && m_Path.Last() != wxT(':')) + if (m_Path.length() > 0 && m_Path.Last() != wxT('/') && m_Path.Last() != wxT(':')) m_Path << wxT('/'); } else { - for (i = m_Path.Length()-1; i >= 0; i--) + for (i = m_Path.length()-1; i >= 0; i--) { if (m_Path[(unsigned int) i] == wxT('/')) { @@ -330,7 +344,7 @@ void wxFileSystem::ChangePathTo(const wxString& location, bool is_dir) } if (pathpos == -1) { - for (i = 0; i < (int) m_Path.Length(); i++) + for (i = 0; i < (int) m_Path.length(); i++) { if (m_Path[(unsigned int) i] == wxT(':')) { @@ -338,7 +352,7 @@ void wxFileSystem::ChangePathTo(const wxString& location, bool is_dir) break; } } - if (i == (int) m_Path.Length()) + if (i == (int) m_Path.length()) m_Path = wxEmptyString; } else @@ -350,19 +364,41 @@ void wxFileSystem::ChangePathTo(const wxString& location, bool is_dir) -wxFSFile* wxFileSystem::OpenFile(const wxString& location) +wxFileSystemHandler *wxFileSystem::MakeLocal(wxFileSystemHandler *h) { + wxClassInfo *classinfo = h->GetClassInfo(); + + if (classinfo->IsDynamic()) + { + wxFileSystemHandler*& local = m_LocalHandlers[classinfo]; + if (!local) + local = (wxFileSystemHandler*)classinfo->CreateObject(); + return local; + } + else + { + return h; + } +} + + + +wxFSFile* wxFileSystem::OpenFile(const wxString& location, int flags) +{ + if ((flags & wxFS_READ) == 0) + return NULL; + wxString loc = MakeCorrectPath(location); unsigned i, ln; - char meta; + wxChar meta; wxFSFile *s = NULL; wxList::compatibility_iterator node; - ln = loc.Length(); + ln = loc.length(); meta = 0; for (i = 0; i < ln; i++) { - switch (loc[i]) + switch ( loc[i].GetValue() ) { case wxT('/') : case wxT(':') : case wxT('#') : meta = loc[i]; @@ -381,7 +417,7 @@ wxFSFile* wxFileSystem::OpenFile(const wxString& location) wxFileSystemHandler *h = (wxFileSystemHandler*) node -> GetData(); if (h->CanOpen(m_Path + loc)) { - s = h->OpenFile(*this, m_Path + loc); + s = MakeLocal(h)->OpenFile(*this, m_Path + loc); if (s) { m_LastName = m_Path + loc; break; } } node = node->GetNext(); @@ -397,12 +433,21 @@ wxFSFile* wxFileSystem::OpenFile(const wxString& location) wxFileSystemHandler *h = (wxFileSystemHandler*) node->GetData(); if (h->CanOpen(loc)) { - s = h->OpenFile(*this, loc); + s = MakeLocal(h)->OpenFile(*this, loc); if (s) { m_LastName = loc; break; } } node = node->GetNext(); } } + + if (s && (flags & wxFS_SEEKABLE) != 0 && !s->GetStream()->IsSeekable()) + { + wxBackedInputStream *stream; + stream = new wxBackedInputStream(s->DetachStream()); + stream->FindLength(); + s->SetStream(stream); + } + return (s); } @@ -415,24 +460,30 @@ wxString wxFileSystem::FindFirst(const wxString& spec, int flags) m_FindFileHandler = NULL; - for (int i = spec2.Length()-1; i >= 0; i--) + for (int i = spec2.length()-1; i >= 0; i--) if (spec2[(unsigned int) i] == wxT('\\')) spec2.GetWritableChar(i) = wxT('/'); // Want to be windows-safe node = m_Handlers.GetFirst(); while (node) { - m_FindFileHandler = (wxFileSystemHandler*) node -> GetData(); - if (m_FindFileHandler -> CanOpen(m_Path + spec2)) + wxFileSystemHandler *h = (wxFileSystemHandler*) node -> GetData(); + if (h -> CanOpen(m_Path + spec2)) + { + m_FindFileHandler = MakeLocal(h); return m_FindFileHandler -> FindFirst(m_Path + spec2, flags); + } node = node->GetNext(); } node = m_Handlers.GetFirst(); while (node) { - m_FindFileHandler = (wxFileSystemHandler*) node -> GetData(); - if (m_FindFileHandler -> CanOpen(spec2)) + wxFileSystemHandler *h = (wxFileSystemHandler*) node -> GetData(); + if (h -> CanOpen(spec2)) + { + m_FindFileHandler = MakeLocal(h); return m_FindFileHandler -> FindFirst(spec2, flags); + } node = node->GetNext(); } @@ -447,21 +498,79 @@ wxString wxFileSystem::FindNext() else return m_FindFileHandler -> FindNext(); } +bool wxFileSystem::FindFileInPath(wxString *pStr, + const wxChar *path, + const wxChar *basename) +{ + // we assume that it's not empty + wxCHECK_MSG( !wxIsEmpty(basename), false, + _T("empty file name in wxFileSystem::FindFileInPath")); + + // skip path separator in the beginning of the file name if present + if ( wxIsPathSeparator(*basename) ) + basename++; + + wxStringTokenizer tokenizer(path, wxPATH_SEP); + while ( tokenizer.HasMoreTokens() ) + { + wxString strFile = tokenizer.GetNextToken(); + if ( !wxEndsWithPathSeparator(strFile) ) + strFile += wxFILE_SEP_PATH; + strFile += basename; + + wxFSFile *file = OpenFile(strFile); + if ( file ) + { + delete file; + *pStr = strFile; + return true; + } + } + return false; +} void wxFileSystem::AddHandler(wxFileSystemHandler *handler) { - m_Handlers.Append(handler); + // prepend the handler to the beginning of the list because handlers added + // last should have the highest priority to allow overriding them + m_Handlers.Insert((size_t)0, handler); } +wxFileSystemHandler* wxFileSystem::RemoveHandler(wxFileSystemHandler *handler) +{ + // if handler has already been removed (or deleted) + // we return NULL. This is by design in case + // CleanUpHandlers() is called before RemoveHandler + // is called, as we cannot control the order + // which modules are unloaded + if (!m_Handlers.DeleteObject(handler)) + return NULL; + + return handler; +} + + +bool wxFileSystem::HasHandlerForPath(const wxString &location) +{ + for ( wxList::compatibility_iterator node = m_Handlers.GetFirst(); + node; node = node->GetNext() ) + { + wxFileSystemHandler *h = (wxFileSystemHandler*) node->GetData(); + if (h->CanOpen(location)) + return true; + } + + return false; +} void wxFileSystem::CleanUpHandlers() { WX_CLEAR_LIST(wxList, m_Handlers); } -const static wxString g_unixPathString(wxT("/")); -const static wxString g_nativePathString(wxFILE_SEP_PATH); +static const wxString g_unixPathString(wxT("/")); +static const wxString g_nativePathString(wxFILE_SEP_PATH); // Returns the native path for a file URL wxFileName wxFileSystem::URLToFileName(const wxString& url) @@ -495,7 +604,7 @@ wxFileName wxFileSystem::URLToFileName(const wxString& url) } else if ( (url.Find(wxT("file://")) == 0) && (path.Find(wxT('/')) != wxNOT_FOUND) && - (path.Length() > 1) && (path[1u] != wxT(':')) ) + (path.length() > 1) && (path[1u] != wxT(':')) ) { path = wxT("//") + path; } @@ -544,21 +653,31 @@ class wxFileSystemModule : public wxModule DECLARE_DYNAMIC_CLASS(wxFileSystemModule) public: + wxFileSystemModule() : + wxModule(), + m_handler(NULL) + { + } + virtual bool OnInit() { - wxFileSystem::AddHandler(new wxLocalFSHandler); + m_handler = new wxLocalFSHandler; + wxFileSystem::AddHandler(m_handler); return true; } virtual void OnExit() { + delete wxFileSystem::RemoveHandler(m_handler); + wxFileSystem::CleanUpHandlers(); } + + private: + wxFileSystemHandler* m_handler; + }; IMPLEMENT_DYNAMIC_CLASS(wxFileSystemModule, wxModule) #endif // wxUSE_FILESYSTEM - - -