X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/78743282716f48121aa17cc76068bfdfbfc4e9bc..aa642a456cde1a8e4b97a74bdd16bd575e7123b1:/src/generic/helpext.cpp diff --git a/src/generic/helpext.cpp b/src/generic/helpext.cpp index 30e80e6850..63f1b4c4b8 100644 --- a/src/generic/helpext.cpp +++ b/src/generic/helpext.cpp @@ -1,5 +1,5 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: helpext.cpp +// Name: src/generic/helpext.cpp // Purpose: an external help controller for wxWidgets // Author: Karsten Ballueder // Modified by: @@ -9,10 +9,6 @@ // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// -#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) -# pragma implementation "wxexthlp.h" -#endif - #include "wx/wxprec.h" #ifdef __BORLANDC__ @@ -22,17 +18,17 @@ #if wxUSE_HELP && !defined(__WXWINCE__) #ifndef WX_PRECOMP - #include "wx/setup.h" + #include "wx/list.h" #include "wx/string.h" #include "wx/utils.h" - #include "wx/list.h" #include "wx/intl.h" #include "wx/msgdlg.h" #include "wx/choicdlg.h" #include "wx/log.h" #endif -#include "wx/helpbase.h" +#include "wx/filename.h" +#include "wx/textfile.h" #include "wx/generic/helpext.h" #include @@ -43,333 +39,330 @@ #include #endif +#ifdef __WINDOWS__ +#include "wx/msw/mslu.h" +#endif + #ifdef __WXMSW__ #include +#include "wx/msw/winundef.h" #endif // ---------------------------------------------------------------------------- // constants // ---------------------------------------------------------------------------- -/// Name for map file. -#define WXEXTHELP_MAPFILE _T("wxhelp.map") -/// Maximum line length in map file. -#define WXEXTHELP_BUFLEN 512 -/// Character introducing comments/documentation field in map file. -#define WXEXTHELP_COMMENTCHAR ';' +// Name for map file. +#define WXEXTHELP_MAPFILE wxT("wxhelp.map") -#define CONTENTS_ID 0 +// Character introducing comments/documentation field in map file. +#define WXEXTHELP_COMMENTCHAR ';' -IMPLEMENT_CLASS(wxExtHelpController, wxHelpControllerBase) +// The ID of the Contents section +#define WXEXTHELP_CONTENTS_ID 0 -/// Name of environment variable to set help browser. -#define WXEXTHELP_ENVVAR_BROWSER wxT("WX_HELPBROWSER") -/// Is browser a netscape browser? -#define WXEXTHELP_ENVVAR_BROWSERISNETSCAPE wxT("WX_HELPBROWSER_NS") +// Name of environment variable to set help browser. +#define WXEXTHELP_ENVVAR_BROWSER wxT("WX_HELPBROWSER") -/** - This class implements help via an external browser. - It requires the name of a directory containing the documentation - and a file mapping numerical Section numbers to relative URLS. -*/ +// Is browser a netscape browser? +#define WXEXTHELP_ENVVAR_BROWSERISNETSCAPE wxT("WX_HELPBROWSER_NS") -wxExtHelpController::wxExtHelpController() -{ - m_MapList = (wxList*) NULL; - m_NumOfEntries = 0; - m_BrowserName = WXEXTHELP_DEFAULTBROWSER; - m_BrowserIsNetscape = WXEXTHELP_DEFAULTBROWSER_IS_NETSCAPE; +IMPLEMENT_CLASS(wxExtHelpController, wxHelpControllerBase) - wxChar *browser = wxGetenv(WXEXTHELP_ENVVAR_BROWSER); - if(browser) - { - m_BrowserName = browser; - browser = wxGetenv(WXEXTHELP_ENVVAR_BROWSERISNETSCAPE); - m_BrowserIsNetscape = browser && (wxAtoi(browser) != 0); - } +wxExtHelpController::wxExtHelpController(wxWindow* parentWindow) + : wxHelpControllerBase(parentWindow) +{ + m_MapList = NULL; + m_NumOfEntries = 0; + m_BrowserIsNetscape = false; + + wxChar *browser = wxGetenv(WXEXTHELP_ENVVAR_BROWSER); + if (browser) + { + m_BrowserName = browser; + browser = wxGetenv(WXEXTHELP_ENVVAR_BROWSERISNETSCAPE); + m_BrowserIsNetscape = browser && (wxAtoi(browser) != 0); + } } wxExtHelpController::~wxExtHelpController() { - DeleteList(); + DeleteList(); } +#if WXWIN_COMPATIBILITY_2_8 void wxExtHelpController::SetBrowser(const wxString& browsername, bool isNetscape) { - m_BrowserName = browsername; - m_BrowserIsNetscape = isNetscape; + m_BrowserName = browsername; + m_BrowserIsNetscape = isNetscape; } +#endif -// Set viewer: new, generic name for SetBrowser void wxExtHelpController::SetViewer(const wxString& viewer, long flags) { - SetBrowser(viewer, ((flags & wxHELP_NETSCAPE) == wxHELP_NETSCAPE)); + m_BrowserName = viewer; + m_BrowserIsNetscape = (flags & wxHELP_NETSCAPE) != 0; } -bool -wxExtHelpController::DisplayHelp(const wxString &relativeURL) +bool wxExtHelpController::DisplayHelp(const wxString &relativeURL) { - wxBusyCursor b; // display a busy cursor - - -#if defined(__WXMSW__) - wxString url; - url << m_MapFile << '\\' << relativeURL.BeforeFirst('#'); - bool bOk = (int)ShellExecute(NULL, wxT("open"), url.c_str(), - NULL, NULL, SW_SHOWNORMAL ) > 32; - if ( !bOk ) - { - wxLogSysError(_("Cannot open URL '%s'"), relativeURL.c_str()); - return false; - } - - return true; -#elif defined(__WXPM__) - - wxString url; - url << m_MapFile << '\\' << relativeURL.BeforeFirst('#'); -// will have to fix for OS/2, later.....DW -// bool bOk = (int)ShellExecute(NULL, "open", url, -// NULL, NULL, SW_SHOWNORMAL ) > 32; -// if ( !bOk ) -// { -// wxLogSysError(_("Cannot open URL '%s'"), relativeURL.c_str()); -// return false; -// } -// else - return true; - -#elif defined(__DOS__) - - wxString command; - command = m_BrowserName; - command << wxT(" file://") - << m_MapFile << WXEXTHELP_SEPARATOR << relativeURL; - return wxExecute(command) != 0; - -#else // UNIX - wxString command; - -#ifndef __EMX__ - if(m_BrowserIsNetscape) // try re-loading first - { - wxString lockfile; - wxGetHomeDir(&lockfile); -#ifdef __VMS__ - lockfile << WXEXTHELP_SEPARATOR << wxT(".netscape]lock."); - struct stat statbuf; - if(stat(lockfile.fn_str(), &statbuf) == 0) -#else - lockfile << WXEXTHELP_SEPARATOR << wxT(".netscape/lock"); - struct stat statbuf; - if(lstat(lockfile.fn_str(), &statbuf) == 0) - // cannot use wxFileExists, because it's a link pointing to a - // non-existing location if(wxFileExists(lockfile)) -#endif - { - long success; - command << m_BrowserName << wxT(" -remote openURL(") - << wxT("file://") << m_MapFile - << WXEXTHELP_SEPARATOR << relativeURL << wxT(")"); - success = wxExecute(command); - if(success != 0 ) // returns PID on success + // construct hte URL to open -- it's just a file + wxString url(wxT("file://") + m_helpDir); + url << wxFILE_SEP_PATH << relativeURL; + + // use the explicit browser program if specified + if ( !m_BrowserName.empty() ) + { + if ( m_BrowserIsNetscape ) + { + wxString command; + command << m_BrowserName + << wxT(" -remote openURL(") << url << wxT(')'); + if ( wxExecute(command, wxEXEC_SYNC) != -1 ) + return true; + } + + if ( wxExecute(m_BrowserName + wxT(' ') + url, wxEXEC_SYNC) != -1 ) return true; - } - } -#endif - command = m_BrowserName; - command << wxT(" file://") - << m_MapFile << WXEXTHELP_SEPARATOR << relativeURL; - return wxExecute(command) != 0; -#endif + } + //else: either no browser explicitly specified or we failed to open it + + // just use default browser + return wxLaunchDefaultBrowser(url); } class wxExtHelpMapEntry : public wxObject { public: - int id; - wxString url; - wxString doc; - wxExtHelpMapEntry(int iid, wxString const &iurl, wxString const &idoc) - { id = iid; url = iurl; doc = idoc; } + int id; + wxString url; + wxString doc; + + wxExtHelpMapEntry(int iid, wxString const &iurl, wxString const &idoc) + { id = iid; url = iurl; doc = idoc; } }; void wxExtHelpController::DeleteList() { - if(m_MapList) - { - wxList::compatibility_iterator node = m_MapList->GetFirst(); - while (node) - { - delete (wxExtHelpMapEntry *)node->GetData(); - m_MapList->Erase(node); - node = m_MapList->GetFirst(); - } - delete m_MapList; - m_MapList = (wxList*) NULL; - } + if (m_MapList) + { + wxList::compatibility_iterator node = m_MapList->GetFirst(); + while (node) + { + delete (wxExtHelpMapEntry *)node->GetData(); + m_MapList->Erase(node); + node = m_MapList->GetFirst(); + } + + wxDELETE(m_MapList); + } } -/** 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) +// 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); + return LoadFile(file); } - -// ifile is the name of the base help directory -bool wxExtHelpController::LoadFile(const wxString& ifile) +bool wxExtHelpController::ParseMapFileLine(const wxString& line) { - wxString mapFile, file, url, doc; - int id,i,len; - char buffer[WXEXTHELP_BUFLEN]; + const wxChar *p = line.c_str(); + + // skip whitespace + while ( isascii(*p) && wxIsspace(*p) ) + p++; + + // skip empty lines and comments + if ( *p == wxT('\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) && wxIsspace(*p) ) + p++; + + // next should be the URL + wxString url; + url.reserve(line.length()); + while ( isascii(*p) && !wxIsspace(*p) ) + url += *p++; + + while ( isascii(*p) && wxIsspace(*p) ) + p++; + + // and finally the optional description of the entry after comment + wxString doc; + if ( *p == WXEXTHELP_COMMENTCHAR ) + { + p++; + while ( isascii(*p) && wxIsspace(*p) ) + p++; + doc = p; + } + + m_MapList->Append(new wxExtHelpMapEntry(id, url, doc)); + m_NumOfEntries++; + + return true; +} - wxBusyCursor b; // display a busy cursor +// 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(); - if(! ifile.empty()) - { - file = ifile; - if(! wxIsAbsolutePath(file)) - { - wxChar* f = wxGetWorkingDirectory(); - file = f; - delete[] f; // wxGetWorkingDirectory returns new memory -#ifdef __WXMAC__ - file << ifile; -#else - file << WXEXTHELP_SEPARATOR << ifile; -#endif - } - else - file = ifile; + 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. - if(wxGetLocale() && !wxGetLocale()->GetName().empty()) - { - wxString newfile; - newfile << WXEXTHELP_SEPARATOR << wxGetLocale()->GetName(); - if(wxDirExists(newfile)) - file = newfile; - else - { - newfile = WXEXTHELP_SEPARATOR; - const wxChar *cptr = wxGetLocale()->GetName().c_str(); - while(*cptr && *cptr != wxT('_')) - newfile << *(cptr++); - if(wxDirExists(newfile)) - file = newfile; - } - } -#endif - - if(! wxDirExists(file)) - return false; - - mapFile << file << WXEXTHELP_SEPARATOR << WXEXTHELP_MAPFILE; - } - else // try to reload old file - mapFile = m_MapFile; - - if(! wxFileExists(mapFile)) - return false; - - DeleteList(); - m_MapList = new wxList; - m_NumOfEntries = 0; - - FILE *input = wxFopen(mapFile,wxT("rt")); - if(! input) - return false; - do - { - if(fgets(buffer,WXEXTHELP_BUFLEN,input) && *buffer != WXEXTHELP_COMMENTCHAR) - { - len = strlen(buffer); - if(buffer[len-1] == '\n') - buffer[len-1] = '\0'; // cut of trailing newline - if(sscanf(buffer,"%d", &id) != 1) - break; // error - for(i=0; isdigit(buffer[i])||isspace(buffer[i])||buffer[i]=='-'; i++) - ; // find begin of URL - url = wxEmptyString; - while(buffer[i] && ! isspace(buffer[i]) && buffer[i] != - WXEXTHELP_COMMENTCHAR) - url << (wxChar) buffer[i++]; - while(buffer[i] && buffer[i] != WXEXTHELP_COMMENTCHAR) - i++; - doc = wxEmptyString; - if(buffer[i]) - doc = wxString::FromAscii( (buffer + i + 1) ); // skip the comment character - m_MapList->Append(new wxExtHelpMapEntry(id,url,doc)); - m_NumOfEntries++; - } - }while(! feof(input)); - fclose(input); - - m_MapFile = file; // now it's valid - return true; + // 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(wxT('.')); + if ( !locNameWithoutEncoding.empty() ) + { + helpDirLoc = helpDir; + helpDirLoc.AppendDir(locNameWithoutEncoding); + dirExists = helpDirLoc.DirExists(); + } + } + + if ( !dirExists ) + { + // try without country part + wxString locNameWithoutCountry = locName.BeforeLast(wxT('_')); + 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() +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_MapFile << WXEXTHELP_SEPARATOR << 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); + 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 == WXEXTHELP_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 ( wxFileExists(file) ) + rc = DisplaySection(WXEXTHELP_CONTENTS_ID); + + // if not found, open homemade toc: + return rc ? true : KeywordSearch(wxEmptyString); } -bool -wxExtHelpController::DisplaySection(int sectionNo) +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; + 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) @@ -382,74 +375,104 @@ bool wxExtHelpController::DisplaySection(const wxString& section) return KeywordSearch(section); } -bool -wxExtHelpController::DisplayBlock(long blockNo) +bool wxExtHelpController::DisplayBlock(long blockNo) { - return DisplaySection((int)blockNo); + return DisplaySection((int)blockNo); } -bool -wxExtHelpController::KeywordSearch(const wxString& k, +bool wxExtHelpController::KeywordSearch(const wxString& k, wxHelpSearchMode WXUNUSED(mode)) { - if(! m_NumOfEntries) + if (! m_NumOfEntries) return false; - wxString *choices = new wxString[m_NumOfEntries]; - wxString *urls = new wxString[m_NumOfEntries]; - wxString compA, compB; + wxString *choices = new wxString[m_NumOfEntries]; + wxString *urls = new wxString[m_NumOfEntries]; - int idx = 0, j; - bool rc; + int idx = 0; + bool rc = false; bool showAll = k.empty(); + wxList::compatibility_iterator node = m_MapList->GetFirst(); - wxExtHelpMapEntry *entry; { - wxBusyCursor b; // display a busy cursor - compA = k; compA.LowerCase(); // we compare case insensitive - while(node) - { - entry = (wxExtHelpMapEntry *)node->GetData(); - compB = entry->doc; compB.LowerCase(); - if((showAll || compB.Contains(k)) && ! compB.empty()) - { - 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(j=0;entry->doc.c_str()[j] - && entry->doc.c_str()[j] != WXEXTHELP_COMMENTCHAR; j++) - choices[idx] << entry->doc.c_str()[j]; - idx++; - } - node = node->GetNext(); - } - } - - if(idx == 1) - rc = DisplayHelp(urls[0]); - else if(idx == 0) - { - wxMessageBox(_("No entries found.")); - rc = false; - } - else - { - idx = wxGetSingleChoiceIndex(showAll ? _("Help Index") : _("Relevant entries:"), - showAll ? _("Help Index") : _("Entries found"), - idx,choices); - if(idx != -1) - rc = DisplayHelp(urls[idx]); - else - rc = false; - } - delete[] urls; - delete[] choices; - - return rc; + // 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: + if (showAll) + idx = wxGetSingleChoiceIndex(_("Help Index"), + _("Help Index"), + idx, choices); + else + idx = wxGetSingleChoiceIndex(_("Relevant entries:"), + _("Entries found"), + idx, choices); + + if (idx >= 0) + rc = DisplayHelp(urls[idx]); + break; + } + + delete [] urls; + delete [] choices; + + return rc; } @@ -462,6 +485,4 @@ void wxExtHelpController::OnQuit() { } - #endif // wxUSE_HELP -