src/frontends/xforms/FormFiledialog.C

   1 /**
   2  * \file FormFiledialog.C
   3  * Copyright 2001 the LyX Team
   4  * Read the file COPYING
   5  *
   6  * \author unknown
   7  * \author John Levon
   8  */
   9
  10 #include <config.h>
  11
  12 #include <unistd.h>
  13 #include <cstdlib>
  14 #include <pwd.h>
  15 #include <grp.h>
  16 //#include <cstring>
  17 #include <map>
  18 #include <algorithm>
  19
  20 using std::map;
  21 using std::max;
  22 using std::sort;
  23
  24 #include "lyx_gui_misc.h" // for WriteFSAlert
  25 #include "support/FileInfo.h"
  26 #include "support/lyxlib.h"
  27 #include "gettext.h"
  28 #include "frontends/Dialogs.h"
  29
  30 #ifdef HAVE_ERRNO_H
  31 #include <cerrno>
  32 #endif
  33
  34 #if HAVE_DIRENT_H
  35 # include <dirent.h>
  36 # define NAMLEN(dirent) strlen((dirent)->d_name)
  37 #else
  38 # define dirent direct
  39 # define NAMLEN(dirent) (dirent)->d_namlen
  40 # if HAVE_SYS_NDIR_H
  41 #  include <sys/ndir.h>
  42 # endif
  43 # if HAVE_SYS_DIR_H
  44 #  include <sys/dir.h>
  45 # endif
  46 # if HAVE_NDIR_H
  47 #  include <ndir.h>
  48 # endif
  49 #endif
  50
  51 #if TIME_WITH_SYS_TIME
  52 # include <sys/time.h>
  53 # include <ctime>
  54 #else
  55 # if HAVE_SYS_TIME_H
  56 #  include <sys/time.h>
  57 # else
  58 #  include <ctime>
  59 # endif
  60 #endif
  61
  62 // FIXME: should be autoconfiscated
  63 #ifdef BROKEN_HEADERS
  64 extern "C" int gettimeofday(struct timeval *, struct timezone *);
  65 #endif
  66
  67 #ifdef __GNUG__
  68 #pragma implementation
  69 #endif
  70
  71 #include "support/filetools.h"
  72 #include "FormFiledialog.h"
  73
  74 namespace {
  75
  76 // six months, in seconds
  77 long const SIX_MONTH_SEC = 6L * 30L * 24L * 60L * 60L;
  78 //static
  79 long const ONE_HOUR_SEC = 60L * 60L;
  80
  81 } // namespace anon
  82
  83
  84 // *** User cache class implementation
  85 /// User cache class definition
  86 class UserCache {
  87 public:
  88         /// seeks user name from group ID
  89         string const & find(uid_t ID) const {
  90                 Users::const_iterator cit = users.find(ID);
  91                 if (cit == users.end()) {
  92                         add(ID);
  93                         return users[ID];
  94                 }
  95                 return cit->second;
  96         }
  97 private:
  98         ///
  99         void add(uid_t ID) const;
 100         ///
 101         typedef map<uid_t, string> Users;
 102         ///
 103         mutable Users users;
 104 };
 105
 106
 107 void UserCache::add(uid_t ID) const
 108 {
 109         string pszNewName;
 110         struct passwd * pEntry;
 111
 112         // gets user name
 113         if ((pEntry = getpwuid(ID)))
 114                 pszNewName = pEntry->pw_name;
 115         else {
 116                 pszNewName = tostr(ID);
 117         }
 118
 119         // adds new node
 120         users[ID] = pszNewName;
 121 }
 122
 123
 124 /// Group cache class definition
 125 class GroupCache {
 126 public:
 127         /// seeks group name from group ID
 128         string const & find(gid_t ID) const ;
 129 private:
 130         ///
 131         void add(gid_t ID) const;
 132         ///
 133         typedef map<gid_t, string> Groups;
 134         ///
 135         mutable Groups groups;
 136 };
 137
 138
 139 string const & GroupCache::find(gid_t ID) const
 140 {
 141         Groups::const_iterator cit = groups.find(ID);
 142         if (cit == groups.end()) {
 143                 add(ID);
 144                 return groups[ID];
 145         }
 146         return cit->second;
 147 }
 148
 149
 150 void GroupCache::add(gid_t ID) const
 151 {
 152         string pszNewName;
 153         struct group * pEntry;
 154
 155         // gets user name
 156         if ((pEntry = getgrgid(ID))) pszNewName = pEntry->gr_name;
 157         else {
 158                 pszNewName = tostr(ID);
 159         }
 160         // adds new node
 161         groups[ID] = pszNewName;
 162 }
 163
 164
 165 namespace {
 166
 167 // local instances
 168 UserCache lyxUserCache;
 169 GroupCache lyxGroupCache;
 170
 171 } // namespace anon
 172
 173
 174 // compares two LyXDirEntry objects content (used for sort)
 175 class comp_direntry {
 176 public:
 177         int operator()(DirEntry const & r1,
 178                        DirEntry const & r2) const ;
 179 };
 180         int comp_direntry::operator()(DirEntry const & r1,
 181                        DirEntry const & r2) const {
 182                 bool r1d = suffixIs(r1.pszName, '/');
 183                 bool r2d = suffixIs(r2.pszName, '/');
 184                 if (r1d && !r2d) return 1;
 185                 if (!r1d && r2d) return 0;
 186                 return r1.pszName < r2.pszName;
 187         }
 188
 189
 190 // *** FileDialog::Private class implementation
 191
 192 // static members
 193 FD_form_filedialog * FileDialog::Private::pFileDlgForm = 0;
 194 FileDialog::Private * FileDialog::Private::pCurrentDlg = 0;
 195
 196
 197 // Reread: updates dialog list to match class directory
 198 void FileDialog::Private::Reread()
 199 {
 200         // Opens directory
 201         DIR * pDirectory = ::opendir(pszDirectory.c_str());
 202         if (!pDirectory) {
 203                 WriteFSAlert(_("Warning! Couldn't open directory."),
 204                              pszDirectory);
 205                 pszDirectory = lyx::getcwd();
 206                 pDirectory = ::opendir(pszDirectory.c_str());
 207         }
 208
 209         // Clear the present namelist
 210         direntries.clear();
 211
 212         // Updates display
 213         fl_hide_object(pFileDlgForm->List);
 214         fl_clear_browser(pFileDlgForm->List);
 215         fl_set_input(pFileDlgForm->DirBox, pszDirectory.c_str());
 216
 217         // Splits complete directory name into directories and compute depth
 218         iDepth = 0;
 219         string line, Temp;
 220         char szMode[15];
 221         FileInfo fileInfo;
 222         string File = pszDirectory;
 223         if (File != "/") {
 224                 File = split(File, Temp, '/');
 225         }
 226         while (!File.empty() || !Temp.empty()) {
 227                 string dline = "@b"+line + Temp + '/';
 228                 fl_add_browser_line(pFileDlgForm->List, dline.c_str());
 229                 File = split(File, Temp, '/');
 230                 line += ' ';
 231                 ++iDepth;
 232         }
 233
 234         // Parses all entries of the given subdirectory
 235         time_t curTime = time(0);
 236         rewinddir(pDirectory);
 237         struct dirent * pDirEntry;
 238         while ((pDirEntry = readdir(pDirectory))) {
 239                 bool isLink = false, isDir = false;
 240
 241                 // If the pattern doesn't start with a dot, skip hidden files
 242                 if (!pszMask.empty() && pszMask[0] != '.' &&
 243                     pDirEntry->d_name[0] == '.')
 244                         continue;
 245
 246                 // Gets filename
 247                 string fname = pDirEntry->d_name;
 248
 249                 // Under all circumstances, "." and ".." are not wanted
 250                 if (fname == "." || fname == "..")
 251                         continue;
 252
 253                 // gets file status
 254                 File = AddName(pszDirectory, fname);
 255
 256                 fileInfo.newFile(File, true);
 257                 fileInfo.modeString(szMode);
 258                 unsigned int nlink = fileInfo.getNumberOfLinks();
 259                 string user =   lyxUserCache.find(fileInfo.getUid());
 260                 string group = lyxGroupCache.find(fileInfo.getGid());
 261
 262                 time_t modtime = fileInfo.getModificationTime();
 263                 string Time = ctime(&modtime);
 264
 265                 if (curTime > fileInfo.getModificationTime() + SIX_MONTH_SEC
 266                     || curTime < fileInfo.getModificationTime()
 267                     + ONE_HOUR_SEC) {
 268                         // The file is fairly old or in the future. POSIX says
 269                         // the cutoff is 6 months old. Allow a 1 hour slop
 270                         // factor for what is considered "the future", to
 271                         // allow for NFS server/client clock disagreement.
 272                         // Show the year instead of the time of day.
 273                         Time.erase(10, 9);
 274                         Time.erase(15, string::npos);
 275                 } else {
 276                         Time.erase(16, string::npos);
 277                 }
 278
 279                 string Buffer = string(szMode) + ' ' +
 280                         tostr(nlink) + ' ' +
 281                         user + ' ' +
 282                         group + ' ' +
 283                         Time.substr(4, string::npos) + ' ';
 284
 285                 Buffer += pDirEntry->d_name;
 286                 Buffer += fileInfo.typeIndicator();
 287
 288                 if ((isLink = fileInfo.isLink())) {
 289                         string Link;
 290
 291                         if (LyXReadLink(File, Link)) {
 292                                 Buffer += " -> ";
 293                                 Buffer += Link;
 294
 295                                 // This gives the FileType of the file that
 296                                 // is really pointed too after resolving all
 297                                 // symlinks. This is not necessarily the same
 298                                 // as the type of Link (which could again be a
 299                                 // link). Is that intended?
 300                                 //                              JV 199902
 301                                 fileInfo.newFile(File);
 302                                 Buffer += fileInfo.typeIndicator();
 303                         }
 304                 }
 305
 306                 // filters files according to pattern and type
 307                 if (fileInfo.isRegular()
 308                     || fileInfo.isChar()
 309                     || fileInfo.isBlock()
 310                     || fileInfo.isFifo()) {
 311                         if (!regexMatch(fname, pszMask))
 312                                 continue;
 313                 } else if (!(isDir = fileInfo.isDir()))
 314                         continue;
 315
 316                 DirEntry tmp;
 317
 318                 // Note pszLsEntry is an string!
 319                 tmp.pszLsEntry = Buffer;
 320                 // creates used name
 321                 string temp = fname;
 322                 if (isDir) temp += '/';
 323
 324                 tmp.pszName = temp;
 325                 // creates displayed name
 326                 temp = pDirEntry->d_name;
 327                 if (isLink)
 328                         temp += '@';
 329                 else
 330                         temp += fileInfo.typeIndicator();
 331                 tmp.pszDisplayed = temp;
 332
 333                 direntries.push_back(tmp);
 334         }
 335
 336         closedir(pDirectory);
 337
 338         // Sort the names
 339         sort(direntries.begin(), direntries.end(), comp_direntry());
 340
 341         // Add them to directory box
 342         for (DirEntries::const_iterator cit = direntries.begin();
 343              cit != direntries.end(); ++cit) {
 344                 string const temp = line + cit->pszDisplayed;
 345                 fl_add_browser_line(pFileDlgForm->List, temp.c_str());
 346         }
 347         fl_set_browser_topline(pFileDlgForm->List, iDepth);
 348         fl_show_object(pFileDlgForm->List);
 349         iLastSel = -1;
 350 }
 351
 352
 353 // SetDirectory: sets dialog current directory
 354 void FileDialog::Private::SetDirectory(string const & Path)
 355 {
 356         if (!pszDirectory.empty()) {
 357                 string TempPath = ExpandPath(Path); // Expand ~/
 358                 TempPath = MakeAbsPath(TempPath, pszDirectory);
 359                 pszDirectory = MakeAbsPath(TempPath);
 360         } else pszDirectory = MakeAbsPath(Path);
 361 }
 362
 363
 364 // SetMask: sets dialog file mask
 365 void FileDialog::Private::SetMask(string const & NewMask)
 366 {
 367         pszMask = NewMask;
 368         fl_set_input(pFileDlgForm->PatBox, pszMask.c_str());
 369 }
 370
 371
 372 // SetInfoLine: sets dialog information line
 373 void FileDialog::Private::SetInfoLine(string const & Line)
 374 {
 375         pszInfoLine = Line;
 376         fl_set_object_label(pFileDlgForm->FileInfo, pszInfoLine.c_str());
 377 }
 378
 379
 380 FileDialog::Private::Private()
 381 {
 382         pszDirectory = MakeAbsPath(string("."));
 383         pszMask = '*';
 384
 385         // Creates form if necessary.
 386         if (!pFileDlgForm) {
 387                 pFileDlgForm = build_filedialog();
 388                 // Set callbacks. This means that we don't need a patch file
 389                 fl_set_object_callback(pFileDlgForm->DirBox,
 390                                        C_LyXFileDlg_FileDlgCB, 0);
 391                 fl_set_object_callback(pFileDlgForm->PatBox,
 392                                        C_LyXFileDlg_FileDlgCB, 1);
 393                 fl_set_object_callback(pFileDlgForm->List,
 394                                        C_LyXFileDlg_FileDlgCB, 2);
 395                 fl_set_object_callback(pFileDlgForm->Filename,
 396                                        C_LyXFileDlg_FileDlgCB, 3);
 397                 fl_set_object_callback(pFileDlgForm->Rescan,
 398                                        C_LyXFileDlg_FileDlgCB, 10);
 399                 fl_set_object_callback(pFileDlgForm->Home,
 400                                        C_LyXFileDlg_FileDlgCB, 11);
 401                 fl_set_object_callback(pFileDlgForm->User1,
 402                                        C_LyXFileDlg_FileDlgCB, 12);
 403                 fl_set_object_callback(pFileDlgForm->User2,
 404                                        C_LyXFileDlg_FileDlgCB, 13);
 405
 406                 // Make sure pressing the close box doesn't crash LyX. (RvdK)
 407                 fl_set_form_atclose(pFileDlgForm->form,
 408                                     C_LyXFileDlg_CancelCB, 0);
 409                 // Register doubleclick callback
 410                 fl_set_browser_dblclick_callback(pFileDlgForm->List,
 411                                                  C_LyXFileDlg_DoubleClickCB,
 412                                                  0);
 413         }
 414         fl_hide_object(pFileDlgForm->User1);
 415         fl_hide_object(pFileDlgForm->User2);
 416
 417         r_ = Dialogs::redrawGUI.connect(SigC::slot(this, &FileDialog::Private::redraw));
 418 }
 419
 420
 421 FileDialog::Private::~Private()
 422 {
 423         r_.disconnect();
 424 }
 425
 426
 427 void FileDialog::Private::redraw()
 428 {
 429         if (pFileDlgForm->form && pFileDlgForm->form->visible)
 430                 fl_redraw_form(pFileDlgForm->form);
 431 }
 432
 433
 434 // SetButton: sets file selector user button action
 435 void FileDialog::Private::SetButton(int iIndex, string const & pszName,
 436                            string const & pszPath)
 437 {
 438         FL_OBJECT * pObject;
 439         string * pTemp;
 440
 441         if (iIndex == 0) {
 442                 pObject = pFileDlgForm->User1;
 443                 pTemp = &pszUserPath1;
 444         } else if (iIndex == 1) {
 445                 pObject = pFileDlgForm->User2;
 446                 pTemp = &pszUserPath2;
 447         } else return;
 448
 449         if (!pszName.empty() && !pszPath.empty()) {
 450                 fl_set_object_label(pObject, pszName.c_str());
 451                 fl_show_object(pObject);
 452                 *pTemp = pszPath;
 453         } else {
 454                 fl_hide_object(pObject);
 455                 pTemp->erase();
 456         }
 457 }
 458
 459
 460 // GetDirectory: gets last dialog directory
 461 string const FileDialog::Private::GetDirectory() const
 462 {
 463         if (!pszDirectory.empty())
 464                 return pszDirectory;
 465         else
 466                 return string(".");
 467 }
 468
 469
 470 // RunDialog: handle dialog during file selection
 471 bool FileDialog::Private::RunDialog()
 472 {
 473         force_cancel = false;
 474         force_ok = false;
 475
 476         // event loop
 477         while(true) {
 478                 FL_OBJECT * pObject = fl_do_forms();
 479
 480                 if (pObject == pFileDlgForm->Ready) {
 481                         if (HandleOK())
 482                                 return true;
 483                 } else if (pObject == pFileDlgForm->Cancel
 484                            || force_cancel)
 485                         return false;
 486                 else if (force_ok)
 487                         return true;
 488         }
 489 }
 490
 491
 492 // XForms objects callback (static)
 493 void FileDialog::Private::FileDlgCB(FL_OBJECT *, long lArgument)
 494 {
 495         if (!pCurrentDlg) return;
 496
 497         switch (lArgument) {
 498
 499         case 0: // get directory
 500                 pCurrentDlg->SetDirectory(fl_get_input(pFileDlgForm->DirBox));
 501                 pCurrentDlg->Reread();
 502                 break;
 503
 504         case 1: // get mask
 505                 pCurrentDlg->SetMask(fl_get_input(pFileDlgForm->PatBox));
 506                 pCurrentDlg->Reread();
 507                 break;
 508
 509         case 2: // list
 510                 pCurrentDlg->HandleListHit();
 511                 break;
 512
 513         case 10: // rescan
 514                 pCurrentDlg->SetDirectory(fl_get_input(pFileDlgForm->DirBox));
 515                 pCurrentDlg->SetMask(fl_get_input(pFileDlgForm->PatBox));
 516                 pCurrentDlg->Reread();
 517                 break;
 518
 519         case 11: // home
 520                 pCurrentDlg->SetDirectory(GetEnvPath("HOME"));
 521                 pCurrentDlg->SetMask(fl_get_input(pFileDlgForm->PatBox));
 522                 pCurrentDlg->Reread();
 523                 break;
 524
 525         case 12: // user button 1
 526                 if (!pCurrentDlg->pszUserPath1.empty()) {
 527                         pCurrentDlg->SetDirectory(pCurrentDlg->pszUserPath1);
 528                         pCurrentDlg->SetMask(fl_get_input(pFileDlgForm
 529                                                           ->PatBox));
 530                         pCurrentDlg->Reread();
 531                 }
 532                 break;
 533
 534         case 13: // user button 2
 535                 if (!pCurrentDlg->pszUserPath2.empty()) {
 536                         pCurrentDlg->SetDirectory(pCurrentDlg->pszUserPath2);
 537                         pCurrentDlg->SetMask(fl_get_input(pFileDlgForm
 538                                                           ->PatBox));
 539                         pCurrentDlg->Reread();
 540                 }
 541                 break;
 542
 543         }
 544 }
 545
 546
 547 extern "C" void C_LyXFileDlg_FileDlgCB(FL_OBJECT * ob, long data)
 548 {
 549         FileDialog::Private::FileDlgCB(ob, data);
 550 }
 551
 552
 553 // Handle callback from list
 554 void FileDialog::Private::HandleListHit()
 555 {
 556         // set info line
 557         int const iSelect = fl_get_browser(pFileDlgForm->List);
 558         if (iSelect > iDepth)  {
 559                 SetInfoLine(direntries[iSelect - iDepth - 1].pszLsEntry);
 560         } else {
 561                 SetInfoLine(string());
 562         }
 563 }
 564
 565
 566 // Callback for double click in list
 567 void FileDialog::Private::DoubleClickCB(FL_OBJECT *, long)
 568 {
 569         if (pCurrentDlg->HandleDoubleClick())
 570                 // Simulate click on OK button
 571                 pCurrentDlg->Force(false);
 572 }
 573
 574
 575 extern "C" void C_LyXFileDlg_DoubleClickCB(FL_OBJECT * ob, long data)
 576 {
 577         FileDialog::Private::DoubleClickCB(ob, data);
 578 }
 579
 580
 581 // Handle double click from list
 582 bool FileDialog::Private::HandleDoubleClick()
 583 {
 584         string pszTemp;
 585
 586         // set info line
 587         bool isDir = true;
 588         int const iSelect = fl_get_browser(pFileDlgForm->List);
 589         if (iSelect > iDepth)  {
 590                 pszTemp = direntries[iSelect - iDepth - 1].pszName;
 591                 SetInfoLine(direntries[iSelect - iDepth - 1].pszLsEntry);
 592                 if (!suffixIs(pszTemp, '/')) {
 593                         isDir = false;
 594                         fl_set_input(pFileDlgForm->Filename, pszTemp.c_str());
 595                 }
 596         } else if (iSelect != 0) {
 597                 SetInfoLine(string());
 598         } else
 599                 return true;
 600
 601         // executes action
 602         if (isDir) {
 603                 string Temp;
 604
 605                 // builds new directory name
 606                 if (iSelect > iDepth) {
 607                         // Directory deeper down
 608                         // First, get directory with trailing /
 609                         Temp = fl_get_input(pFileDlgForm->DirBox);
 610                         if (!suffixIs(Temp, '/'))
 611                                 Temp += '/';
 612                         Temp += pszTemp;
 613                 } else {
 614                         // Directory higher up
 615                         Temp.erase();
 616                         for (int i = 0; i < iSelect; ++i) {
 617                                 string piece = fl_get_browser_line(pFileDlgForm->List, i+1);
 618                                 // The '+2' is here to count the '@b' (JMarc)
 619                                 Temp += piece.substr(i + 2);
 620                         }
 621                 }
 622
 623                 // assigns it
 624                 SetDirectory(Temp);
 625                 Reread();
 626                 return false;
 627         }
 628         return true;
 629 }
 630
 631
 632 // Handle OK button call
 633 bool FileDialog::Private::HandleOK()
 634 {
 635         // mask was changed
 636         string pszTemp = fl_get_input(pFileDlgForm->PatBox);
 637         if (pszTemp != pszMask) {
 638                 SetMask(pszTemp);
 639                 Reread();
 640                 return false;
 641         }
 642
 643         // directory was changed
 644         pszTemp = fl_get_input(pFileDlgForm->DirBox);
 645         if (pszTemp!= pszDirectory) {
 646                 SetDirectory(pszTemp);
 647                 Reread();
 648                 return false;
 649         }
 650
 651         // Handle return from list
 652         int const select = fl_get_browser(pFileDlgForm->List);
 653         if (select > iDepth) {
 654                 string const temp = direntries[select - iDepth - 1].pszName;
 655                 if (!suffixIs(temp, '/')) {
 656                         // If user didn't type anything, use browser
 657                         string const name =
 658                                 fl_get_input(pFileDlgForm->Filename);
 659                         if (name.empty()) {
 660                                 fl_set_input(pFileDlgForm->Filename, temp.c_str());
 661                         }
 662                         return true;
 663                 }
 664         }
 665
 666         // Emulate a doubleclick
 667         return HandleDoubleClick();
 668 }
 669
 670
 671 // Handle Cancel CB from WM close
 672 int FileDialog::Private::CancelCB(FL_FORM *, void *)
 673 {
 674         // Simulate a click on the cancel button
 675         pCurrentDlg->Force(true);
 676         return FL_IGNORE;
 677 }
 678
 679
 680 extern "C" int C_LyXFileDlg_CancelCB(FL_FORM *fl, void *xev)
 681 {
 682         return FileDialog::Private::CancelCB(fl, xev);
 683 }
 684
 685
 686 // Simulates a click on OK/Cancel
 687 void FileDialog::Private::Force(bool cancel)
 688 {
 689         if (cancel) {
 690                 force_cancel = true;
 691                 fl_set_button(pFileDlgForm->Cancel, 1);
 692         } else {
 693                 force_ok = true;
 694                 fl_set_button(pFileDlgForm->Ready, 1);
 695         }
 696         // Start timer to break fl_do_forms loop soon
 697         fl_set_timer(pFileDlgForm->timer, 0.1);
 698 }
 699
 700
 701 // Select: launches dialog and returns selected file
 702 string const FileDialog::Private::Select(string const & title, string const & path,
 703                                 string const & mask, string const & suggested)
 704 {
 705         // handles new mask and path
 706         bool isOk = true;
 707         if (!mask.empty()) {
 708                 SetMask(mask);
 709                 isOk = false;
 710         }
 711         if (!path.empty()) {
 712                 SetDirectory(path);
 713                 isOk = false;
 714         }
 715         if (!isOk) Reread();
 716
 717         // highlight the suggested file in the browser, if it exists.
 718         int sel = 0;
 719         string const filename = OnlyFilename(suggested);
 720         if (!filename.empty()) {
 721                 for (int i = 0;
 722                      i < fl_get_browser_maxline(pFileDlgForm->List); ++i) {
 723                         string s =
 724                                 fl_get_browser_line(pFileDlgForm->List, i + 1);
 725                         s = strip(frontStrip(s));
 726                         if (s == filename) {
 727                                 sel = i + 1;
 728                                 break;
 729                         }
 730                 }
 731         }
 732
 733         if (sel != 0) fl_select_browser_line(pFileDlgForm->List, sel);
 734         int const top = max(sel - 5, 1);
 735         fl_set_browser_topline(pFileDlgForm->List, top);
 736
 737         // checks whether dialog can be started
 738         if (pCurrentDlg) return string();
 739         pCurrentDlg = this;
 740
 741         // runs dialog
 742         SetInfoLine(string());
 743         fl_set_input(pFileDlgForm->Filename, suggested.c_str());
 744         fl_set_button(pFileDlgForm->Cancel, 0);
 745         fl_set_button(pFileDlgForm->Ready, 0);
 746         fl_set_focus_object(pFileDlgForm->form, pFileDlgForm->Filename);
 747         fl_deactivate_all_forms();
 748         fl_show_form(pFileDlgForm->form,
 749                      FL_PLACE_MOUSE | FL_FREE_SIZE, 0,
 750                      title.c_str());
 751
 752         isOk = RunDialog();
 753
 754         fl_hide_form(pFileDlgForm->form);
 755         fl_activate_all_forms();
 756         pCurrentDlg = 0;
 757
 758         // Returns filename or string() if no valid selection was made
 759         if (!isOk || !fl_get_input(pFileDlgForm->Filename)[0]) return string();
 760
 761         pszFileName = fl_get_input(pFileDlgForm->Filename);
 762
 763         if (!AbsolutePath(pszFileName)) {
 764                 pszFileName = AddName(fl_get_input(pFileDlgForm->DirBox),
 765                                       pszFileName);
 766         }
 767         return pszFileName;
 768 }