X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/e2a6f23364aefcd5095dc6558e3ab8144363fa96..05e0b047d879cdbfade7f2ab346c0acdf3e29f96:/src/generic/helpext.cpp diff --git a/src/generic/helpext.cpp b/src/generic/helpext.cpp index 80e91ebdc4..8faf2560f3 100644 --- a/src/generic/helpext.cpp +++ b/src/generic/helpext.cpp @@ -1,84 +1,489 @@ -/*-*- c++ -*-******************************************************** - * helpext.cpp - an external help controller for wxWindows * - * * - * (C) 1999 by Karsten Ballüder (Ballueder@usa.net) * - * * - * $Id$ - *******************************************************************/ -#ifdef __GNUG__ -# pragma implementation "wxexthlp.h" +///////////////////////////////////////////////////////////////////////////// +// Name: src/generic/helpext.cpp +// Purpose: an external help controller for wxWidgets +// Author: Karsten Ballueder +// Modified by: +// Created: 04/01/98 +// RCS-ID: $Id$ +// Copyright: (c) Karsten Ballueder +// Licence: wxWindows licence +///////////////////////////////////////////////////////////////////////////// + +#include "wx/wxprec.h" + +#ifdef __BORLANDC__ + #pragma hdrstop #endif -#include "wx/setup.h" -#include "wx/helpbase.h" -#include "wx/generic/helpext.h" -#include "wx/string.h" -#include "wx/utils.h" -#include "wx/list.h" -#include -#include -#include -#include - -IMPLEMENT_CLASS(wxExtHelpController, wxHTMLHelpControllerBase) - -/** - 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. -*/ - -wxExtHelpController::wxExtHelpController(void) -{ - m_BrowserName = WXEXTHELP_DEFAULTBROWSER; - m_BrowserIsNetscape = WXEXTHELP_DEFAULTBROWSER_IS_NETSCAPE; - - char *browser = getenv(WXEXTHELP_ENVVAR_BROWSER); - if(browser) - { - m_BrowserName = browser; - browser = getenv(WXEXTHELP_ENVVAR_BROWSERISNETSCAPE); - m_BrowserIsNetscape = browser && (atoi(browser) != 0); - } +#if wxUSE_HELP && !defined(__WXWINCE__) + +#ifndef WX_PRECOMP + #include "wx/list.h" + #include "wx/string.h" + #include "wx/utils.h" + #include "wx/intl.h" + #include "wx/msgdlg.h" + #include "wx/choicdlg.h" + #include "wx/log.h" +#endif + +#include "wx/filename.h" +#include "wx/textfile.h" +#include "wx/generic/helpext.h" + +#include +#include +#include + +#if !defined(__WINDOWS__) && !defined(__OS2__) + #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") + +// Character introducing comments/documentation field in map file. +#define WXEXTHELP_COMMENTCHAR ';' + +// 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") + +IMPLEMENT_CLASS(wxExtHelpController, wxHelpControllerBase) + +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(); +} + +#if WXWIN_COMPATIBILITY_2_8 +void wxExtHelpController::SetBrowser(const wxString& browsername, bool isNetscape) +{ + m_BrowserName = browsername; + m_BrowserIsNetscape = isNetscape; +} +#endif + +void wxExtHelpController::SetViewer(const wxString& viewer, long flags) +{ + m_BrowserName = viewer; + m_BrowserIsNetscape = (flags & wxHELP_NETSCAPE) != 0; +} + +bool wxExtHelpController::DisplayHelp(const wxString &relativeURL) +{ + // construct hte URL to open -- it's just a file + wxString url(_T("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 + _T(' ') + url, wxEXEC_SYNC) != -1 ) + return true; + } + //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; } +}; + +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; + } +} + +// 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 == 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 (contents.length() && wxFileExists(file)) + rc = DisplaySection(WXEXTHELP_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); +} -void -wxExtHelpController::SetBrowser(wxString const & browsername, bool isNetscape) +bool wxExtHelpController::DisplayBlock(long blockNo) { - m_BrowserName = browsername; - m_BrowserIsNetscape = isNetscape; + return DisplaySection((int)blockNo); } -bool -wxExtHelpController::DisplayHelp(wxString const &relativeURL) +bool wxExtHelpController::KeywordSearch(const wxString& k, + wxHelpSearchMode WXUNUSED(mode)) { - wxBusyCursor b; // display a busy cursor - wxString command; + 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(); - if(m_BrowserIsNetscape) // try re-loading first { - wxString lockfile; - wxGetHomeDir(&lockfile); - lockfile << WXEXTHELP_SEPARATOR << ".netscape/lock"; - struct stat statbuf; - if(lstat(lockfile.c_str(), &statbuf) == 0) - // cannot use wxFileExists, because it's a link pointing to a - // non-existing location if(wxFileExists(lockfile)) - { - long success; - command << m_BrowserName << " -remote openURL(" - << "file://" << m_MapFile - << WXEXTHELP_SEPARATOR << relativeURL << ")"; - success = wxExecute(command); - if(success != 0 ) // returns PID on success - return TRUE; - } - } - command = m_BrowserName; - command << " file://" - << m_MapFile << WXEXTHELP_SEPARATOR << relativeURL; - return wxExecute(command) != 0; + // 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; } +bool wxExtHelpController::Quit() +{ + return true; +} + +void wxExtHelpController::OnQuit() +{ +} + +#endif // wxUSE_HELP