+// This must be called to tell the controller where to find the documentation.
+// @param file - NOT a filename, but a directory name.
+// @return true on success
+bool wxExtHelpController::Initialize(const wxString& file)
+{
+ return LoadFile(file);
+}
+
+bool wxExtHelpController::ParseMapFileLine(const wxString& line)
+{
+ const wxChar *p = line.c_str();
+
+ // skip whitespace
+ while ( isascii(*p) && isspace(*p) )
+ p++;
+
+ // skip empty lines and comments
+ if ( *p == _T('\0') || *p == WXEXTHELP_COMMENTCHAR )
+ return true;
+
+ // the line is of the form "num url" so we must have an integer now
+ wxChar *end;
+ const unsigned long id = wxStrtoul(p, &end, 0);
+
+ if ( end == p )
+ return false;
+
+ p = end;
+ while ( isascii(*p) && isspace(*p) )
+ p++;
+
+ // next should be the URL
+ wxString url;
+ url.reserve(line.length());
+ while ( isascii(*p) && !isspace(*p) )
+ url += *p++;
+
+ while ( isascii(*p) && isspace(*p) )
+ p++;
+
+ // and finally the optional description of the entry after comment
+ wxString doc;
+ if ( *p == WXEXTHELP_COMMENTCHAR )
+ {
+ p++;
+ while ( isascii(*p) && isspace(*p) )
+ p++;
+ doc = p;
+ }
+
+ m_MapList->Append(new wxExtHelpMapEntry(id, url, doc));
+ m_NumOfEntries++;
+
+ return true;
+}
+
+// file is a misnomer as it's the name of the base help directory
+bool wxExtHelpController::LoadFile(const wxString& file)
+{
+ wxFileName helpDir(wxFileName::DirName(file));
+ helpDir.MakeAbsolute();
+
+ bool dirExists = false;
+
+#if wxUSE_INTL
+ // If a locale is set, look in file/localename, i.e. If passed
+ // "/usr/local/myapp/help" and the current wxLocale is set to be "de", then
+ // look in "/usr/local/myapp/help/de/" first and fall back to
+ // "/usr/local/myapp/help" if that doesn't exist.
+ const wxLocale * const loc = wxGetLocale();
+ if ( loc )
+ {
+ wxString locName = loc->GetName();
+
+ // the locale is in general of the form xx_YY.zzzz, try the full firm
+ // first and then also more general ones
+ wxFileName helpDirLoc(helpDir);
+ helpDirLoc.AppendDir(locName);
+ dirExists = helpDirLoc.DirExists();
+
+ if ( ! dirExists )
+ {
+ // try without encoding
+ const wxString locNameWithoutEncoding = locName.BeforeLast(_T('.'));
+ if ( !locNameWithoutEncoding.empty() )
+ {
+ helpDirLoc = helpDir;
+ helpDirLoc.AppendDir(locNameWithoutEncoding);
+ dirExists = helpDirLoc.DirExists();
+ }
+ }
+
+ if ( !dirExists )
+ {
+ // try without country part
+ wxString locNameWithoutCountry = locName.BeforeLast(_T('_'));
+ if ( !locNameWithoutCountry.empty() )
+ {
+ helpDirLoc = helpDir;
+ helpDirLoc.AppendDir(locNameWithoutCountry);
+ dirExists = helpDirLoc.DirExists();
+ }
+ }
+
+ if ( dirExists )
+ helpDir = helpDirLoc;
+ }
+#endif // wxUSE_INTL
+
+ if ( ! dirExists && !helpDir.DirExists() )
+ {
+ wxLogError(_("Help directory \"%s\" not found."),
+ helpDir.GetFullPath().c_str());
+ return false;
+ }
+
+ const wxFileName mapFile(helpDir.GetFullPath(), WXEXTHELP_MAPFILE);
+ if ( ! mapFile.FileExists() )
+ {
+ wxLogError(_("Help file \"%s\" not found."),
+ mapFile.GetFullPath().c_str());
+ return false;
+ }
+
+ DeleteList();
+ m_MapList = new wxList;
+ m_NumOfEntries = 0;
+
+ wxTextFile input;
+ if ( !input.Open(mapFile.GetFullPath()) )
+ return false;
+
+ for ( wxString& line = input.GetFirstLine();
+ !input.Eof();
+ line = input.GetNextLine() )
+ {
+ if ( !ParseMapFileLine(line) )
+ {
+ wxLogWarning(_("Line %lu of map file \"%s\" has invalid syntax, skipped."),
+ (unsigned long)input.GetCurrentLine(),
+ mapFile.GetFullPath().c_str());
+ }
+ }
+
+ if ( !m_NumOfEntries )
+ {
+ wxLogError(_("No valid mappings found in the file \"%s\"."),
+ mapFile.GetFullPath().c_str());
+ return false;
+ }
+
+ m_helpDir = helpDir.GetFullPath(); // now it's valid
+ return true;
+}
+
+
+bool wxExtHelpController::DisplayContents()
+{
+ if (! m_NumOfEntries)
+ return false;
+
+ wxString contents;
+ wxList::compatibility_iterator node = m_MapList->GetFirst();
+ wxExtHelpMapEntry *entry;
+ while (node)
+ {
+ entry = (wxExtHelpMapEntry *)node->GetData();
+ if (entry->id == CONTENTS_ID)
+ {
+ contents = entry->url;
+ break;
+ }
+
+ node = node->GetNext();
+ }
+
+ bool rc = false;
+ wxString file;
+ file << m_helpDir << wxFILE_SEP_PATH << contents;
+ if (file.Contains(wxT('#')))
+ file = file.BeforeLast(wxT('#'));
+ if (contents.length() && wxFileExists(file))
+ rc = DisplaySection(CONTENTS_ID);
+
+ // if not found, open homemade toc:
+ return rc ? true : KeywordSearch(wxEmptyString);
+}
+
+bool wxExtHelpController::DisplaySection(int sectionNo)
+{
+ if (! m_NumOfEntries)
+ return false;
+
+ wxBusyCursor b; // display a busy cursor
+ wxList::compatibility_iterator node = m_MapList->GetFirst();
+ wxExtHelpMapEntry *entry;
+ while (node)
+ {
+ entry = (wxExtHelpMapEntry *)node->GetData();
+ if (entry->id == sectionNo)
+ return DisplayHelp(entry->url);
+ node = node->GetNext();
+ }
+
+ return false;
+}
+
+bool wxExtHelpController::DisplaySection(const wxString& section)
+{
+ bool isFilename = (section.Find(wxT(".htm")) != -1);
+
+ if (isFilename)
+ return DisplayHelp(section);
+ else
+ return KeywordSearch(section);
+}
+
+bool wxExtHelpController::DisplayBlock(long blockNo)
+{
+ return DisplaySection((int)blockNo);
+}
+
+bool wxExtHelpController::KeywordSearch(const wxString& k,
+ wxHelpSearchMode WXUNUSED(mode))
+{
+ if (! m_NumOfEntries)
+ return false;
+
+ wxString *choices = new wxString[m_NumOfEntries];
+ wxString *urls = new wxString[m_NumOfEntries];
+
+ int idx = 0;
+ bool rc = false;
+ bool showAll = k.empty();
+
+ wxList::compatibility_iterator node = m_MapList->GetFirst();
+
+ {
+ // display a busy cursor
+ wxBusyCursor b;
+ wxString compA, compB;
+ wxExtHelpMapEntry *entry;
+
+ // we compare case insensitive
+ if (! showAll)
+ {
+ compA = k;
+ compA.LowerCase();
+ }
+
+ while (node)
+ {
+ entry = (wxExtHelpMapEntry *)node->GetData();
+ compB = entry->doc;
+
+ bool testTarget = ! compB.empty();
+ if (testTarget && ! showAll)
+ {
+ compB.LowerCase();
+ testTarget = compB.Contains(compA);
+ }
+
+ if (testTarget)
+ {
+ urls[idx] = entry->url;
+ // doesn't work:
+ // choices[idx] = (**i).doc.Contains((**i).doc.Before(WXEXTHELP_COMMENTCHAR));
+ //if (choices[idx].empty()) // didn't contain the ';'
+ // choices[idx] = (**i).doc;
+ choices[idx] = wxEmptyString;
+ for (int j=0; ; j++)
+ {
+ wxChar targetChar = entry->doc.c_str()[j];
+ if ((targetChar == 0) || (targetChar == WXEXTHELP_COMMENTCHAR))
+ break;
+
+ choices[idx] << targetChar;
+ }
+
+ idx++;
+ }
+
+ node = node->GetNext();
+ }
+ }
+
+ switch (idx)
+ {
+ case 0:
+ wxMessageBox(_("No entries found."));
+ break;
+
+ case 1:
+ rc = DisplayHelp(urls[0]);
+ break;
+
+ default:
+ idx = wxGetSingleChoiceIndex(
+ showAll ? _("Help Index") : _("Relevant entries:"),
+ showAll ? _("Help Index") : _("Entries found"),
+ idx, choices);
+ if (idx >= 0)
+ rc = DisplayHelp(urls[idx]);
+ break;
+ }
+
+ delete [] urls;
+ delete [] choices;
+
+ return rc;
+}
+
+
+bool wxExtHelpController::Quit()
+{
+ return true;
+}
+
+void wxExtHelpController::OnQuit()
+{
+}
projects / wxWidgets.git / blobdiff