/////////////////////////////////////////////////////////////////////////////
-// Name: helpext.cpp
+// Name: src/generic/helpext.cpp
// Purpose: an external help controller for wxWidgets
// Author: Karsten Ballueder
// Modified by:
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-# pragma implementation "wxexthlp.h"
-#endif
-
#include "wx/wxprec.h"
#ifdef __BORLANDC__
#if wxUSE_HELP && !defined(__WXWINCE__) && (!defined(__WXMAC__) || defined(__WXMAC_OSX__))
#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 <stdio.h>
#include <unistd.h>
#endif
+#ifdef __WINDOWS__
+#include "wx/msw/mslu.h"
+#endif
+
#ifdef __WXMSW__
#include <windows.h>
#include "wx/msw/winundef.h"
/// 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 ';'
and a file mapping numerical Section numbers to relative URLS.
*/
-wxExtHelpController::wxExtHelpController()
+wxExtHelpController::wxExtHelpController(wxWindow* parentWindow)
+ : wxHelpControllerBase(parentWindow)
{
- m_MapList = (wxList*) NULL;
+ m_MapList = NULL;
m_NumOfEntries = 0;
- m_BrowserName = WXEXTHELP_DEFAULTBROWSER;
- m_BrowserIsNetscape = WXEXTHELP_DEFAULTBROWSER_IS_NETSCAPE;
+ m_BrowserIsNetscape = false;
wxChar *browser = wxGetenv(WXEXTHELP_ENVVAR_BROWSER);
- if(browser)
+ if (browser)
{
m_BrowserName = browser;
browser = wxGetenv(WXEXTHELP_ENVVAR_BROWSERISNETSCAPE);
// Set viewer: new, generic name for SetBrowser
void wxExtHelpController::SetViewer(const wxString& viewer, long flags)
{
- SetBrowser(viewer, ((flags & wxHELP_NETSCAPE) == wxHELP_NETSCAPE));
+ SetBrowser(viewer, (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(_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;
- }
- }
-#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
void wxExtHelpController::DeleteList()
{
- if(m_MapList)
+ if (m_MapList)
{
wxList::compatibility_iterator node = m_MapList->GetFirst();
while (node)
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)
+// 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;
+}
-// ifile is the name of the base help directory
-bool wxExtHelpController::LoadFile(const wxString& ifile)
+// file is a misnomer as it's the name of the base help directory
+bool wxExtHelpController::LoadFile(const wxString& file)
{
- wxString mapFile, file, url, doc;
- int id,i,len;
- char buffer[WXEXTHELP_BUFLEN];
+ wxFileName helpDir(wxFileName::DirName(file));
+ helpDir.MakeAbsolute();
- wxBusyCursor b; // display a busy cursor
-
- 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(wxPathExists(newfile))
- file = newfile;
- else
- {
- newfile = WXEXTHELP_SEPARATOR;
- const wxChar *cptr = wxGetLocale()->GetName().c_str();
- while(*cptr && *cptr != wxT('_'))
- newfile << *(cptr++);
- if(wxPathExists(newfile))
- file = newfile;
- }
- }
-#endif
-
- if(! wxPathExists(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(_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()
+bool wxExtHelpController::DisplayContents()
{
- if(! m_NumOfEntries)
+ if (! m_NumOfEntries)
return false;
wxString contents;
wxList::compatibility_iterator node = m_MapList->GetFirst();
wxExtHelpMapEntry *entry;
- while(node)
+ while (node)
{
entry = (wxExtHelpMapEntry *)node->GetData();
- if(entry->id == CONTENTS_ID)
+ 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 << m_helpDir << wxFILE_SEP_PATH << contents;
+ if (file.Contains(wxT('#')))
file = file.BeforeLast(wxT('#'));
- if(contents.Length() && wxFileExists(file))
+ 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)
+bool wxExtHelpController::DisplaySection(int sectionNo)
{
- if(! m_NumOfEntries)
+ if (! m_NumOfEntries)
return false;
wxBusyCursor b; // display a busy cursor
wxList::compatibility_iterator node = m_MapList->GetFirst();
wxExtHelpMapEntry *entry;
- while(node)
+ while (node)
{
entry = (wxExtHelpMapEntry *)node->GetData();
- if(entry->id == sectionNo)
+ if (entry->id == sectionNo)
return DisplayHelp(entry->url);
node = node->GetNext();
}
+
return false;
}
return KeywordSearch(section);
}
-bool
-wxExtHelpController::DisplayBlock(long blockNo)
+bool wxExtHelpController::DisplayBlock(long 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();
- }
- }
+ wxList::compatibility_iterator node = m_MapList->GetFirst();
- 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:
+ 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;
}
{
}
-
#endif // wxUSE_HELP
-
projects / wxWidgets.git / blobdiff