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 "frontends/Alert.h"
  25 #include "support/FileInfo.h"
  26 #include "support/lyxlib.h"
  27 #include "support/lstrings.h"
  28 #include "gettext.h"
  29 #include "frontends/Dialogs.h"
  30
  31 #ifdef HAVE_ERRNO_H
  32 #include <cerrno>
  33 #endif
  34
  35 #if HAVE_DIRENT_H
  36 # include <dirent.h>
  37 # define NAMLEN(dirent) strlen((dirent)->d_name)
  38 #else
  39 # define dirent direct
  40 # define NAMLEN(dirent) (dirent)->d_namlen
  41 # if HAVE_SYS_NDIR_H
  42 #  include <sys/ndir.h>
  43 # endif
  44 # if HAVE_SYS_DIR_H
  45 #  include <sys/dir.h>
  46 # endif
  47 # if HAVE_NDIR_H
  48 #  include <ndir.h>
  49 # endif
  50 #endif
  51
  52 #if TIME_WITH_SYS_TIME
  53 # include <sys/time.h>
  54 # include <ctime>
  55 #else
  56 # if HAVE_SYS_TIME_H
  57 #  include <sys/time.h>
  58 # else
  59 #  include <ctime>
  60 # endif
  61 #endif
  62
  63 // FIXME: should be autoconfiscated
  64 #ifdef BROKEN_HEADERS
  65 extern "C" int gettimeofday(struct timeval *, struct timezone *);
  66 #endif
  67
  68 #ifdef __GNUG__
  69 #pragma implementation
  70 #endif
  71
  72 #include "support/filetools.h"
  73 #include "FormFiledialog.h"
  74
  75 namespace {
  76
  77 // six months, in seconds
  78 long const SIX_MONTH_SEC = 6L * 30L * 24L * 60L * 60L;
  79 //static
  80 long const ONE_HOUR_SEC = 60L * 60L;
  81
  82 extern "C" {
  83
  84         static
  85         int C_LyXFileDlg_CancelCB(FL_FORM *fl, void *xev)
  86         {
  87                 return FileDialog::Private::CancelCB(fl, xev);
  88         }
  89
  90         static
  91         void C_LyXFileDlg_DoubleClickCB(FL_OBJECT * ob, long data)
  92         {
  93                 FileDialog::Private::DoubleClickCB(ob, data);
  94         }
  95
  96         static
  97         void C_LyXFileDlg_FileDlgCB(FL_OBJECT * ob, long data)
  98         {
  99                 FileDialog::Private::FileDlgCB(ob, data);
 100         }
 101
 102 }
 103
 104 } // namespace anon
 105
 106
 107 // *** User cache class implementation
 108 /// User cache class definition
 109 class UserCache {
 110 public:
 111         /// seeks user name from group ID
 112         string const & find(uid_t ID) const {
 113                 Users::const_iterator cit = users.find(ID);
 114                 if (cit == users.end()) {
 115                         add(ID);
 116                         return users[ID];
 117                 }
 118                 return cit->second;
 119         }
 120 private:
 121         ///
 122         void add(uid_t ID) const;
 123         ///
 124         typedef map<uid_t, string> Users;
 125         ///
 126         mutable Users users;
 127 };
 128
 129
 130 void UserCache::add(uid_t ID) const
 131 {
 132         string pszNewName;
 133         struct passwd * pEntry;
 134
 135         // gets user name
 136         if ((pEntry = getpwuid(ID)))
 137                 pszNewName = pEntry->pw_name;
 138         else {
 139                 pszNewName = tostr(ID);
 140         }
 141
 142         // adds new node
 143         users[ID] = pszNewName;
 144 }
 145
 146
 147 /// Group cache class definition
 148 class GroupCache {
 149 public:
 150         /// seeks group name from group ID
 151         string const & find(gid_t ID) const ;
 152 private:
 153         ///
 154         void add(gid_t ID) const;
 155         ///
 156         typedef map<gid_t, string> Groups;
 157         ///
 158         mutable Groups groups;
 159 };
 160
 161
 162 string const & GroupCache::find(gid_t ID) const
 163 {
 164         Groups::const_iterator cit = groups.find(ID);
 165         if (cit == groups.end()) {
 166                 add(ID);
 167                 return groups[ID];
 168         }
 169         return cit->second;
 170 }
 171
 172
 173 void GroupCache::add(gid_t ID) const
 174 {
 175         string pszNewName;
 176         struct group * pEntry;
 177
 178         // gets user name
 179         if ((pEntry = getgrgid(ID))) pszNewName = pEntry->gr_name;
 180         else {
 181                 pszNewName = tostr(ID);
 182         }
 183         // adds new node
 184         groups[ID] = pszNewName;
 185 }
 186
 187
 188 namespace {
 189
 190 // local instances
 191 UserCache lyxUserCache;
 192 GroupCache lyxGroupCache;
 193
 194 } // namespace anon
 195
 196
 197 // compares two LyXDirEntry objects content (used for sort)
 198 class comp_direntry {
 199 public:
 200         int operator()(DirEntry const & r1,
 201                        DirEntry const & r2) const ;
 202 };
 203         int comp_direntry::operator()(DirEntry const & r1,
 204                        DirEntry const & r2) const {
 205                 bool r1d = suffixIs(r1.pszName, '/');
 206                 bool r2d = suffixIs(r2.pszName, '/');
 207                 if (r1d && !r2d) return 1;
 208                 if (!r1d && r2d) return 0;
 209                 return r1.pszName < r2.pszName;
 210         }
 211
 212
 213 // *** FileDialog::Private class implementation
 214
 215 // static members
 216 FD_form_filedialog * FileDialog::Private::pFileDlgForm = 0;
 217 FileDialog::Private * FileDialog::Private::pCurrentDlg = 0;
 218
 219
 220 // Reread: updates dialog list to match class directory
 221 void FileDialog::Private::Reread()
 222 {
 223         // Opens directory
 224         DIR * pDirectory = ::opendir(pszDirectory.c_str());
 225         if (!pDirectory) {
 226                 Alert::err_alert(_("Warning! Couldn't open directory."),
 227                              pszDirectory);
 228                 pszDirectory = lyx::getcwd();
 229                 pDirectory = ::opendir(pszDirectory.c_str());
 230         }
 231
 232         // Clear the present namelist
 233         direntries.clear();
 234
 235         // Updates display
 236         fl_hide_object(pFileDlgForm->List);
 237         fl_clear_browser(pFileDlgForm->List);
 238         fl_set_input(pFileDlgForm->DirBox, pszDirectory.c_str());
 239
 240         // Splits complete directory name into directories and compute depth
 241         iDepth = 0;
 242         string line, Temp;
 243         char szMode[15];
 244         string File = pszDirectory;
 245         if (File != "/") {
 246                 File = split(File, Temp, '/');
 247         }
 248         while (!File.empty() || !Temp.empty()) {
 249                 string dline = "@b"+line + Temp + '/';
 250                 fl_add_browser_line(pFileDlgForm->List, dline.c_str());
 251                 File = split(File, Temp, '/');
 252                 line += ' ';
 253                 ++iDepth;
 254         }
 255
 256         // Parses all entries of the given subdirectory
 257         time_t curTime = time(0);
 258         rewinddir(pDirectory);
 259         struct dirent * pDirEntry;
 260         while ((pDirEntry = readdir(pDirectory))) {
 261                 bool isLink = false, isDir = false;
 262
 263                 // If the pattern doesn't start with a dot, skip hidden files
 264                 if (!pszMask.empty() && pszMask[0] != '.' &&
 265                     pDirEntry->d_name[0] == '.')
 266                         continue;
 267
 268                 // Gets filename
 269                 string fname = pDirEntry->d_name;
 270
 271                 // Under all circumstances, "." and ".." are not wanted
 272                 if (fname == "." || fname == "..")
 273                         continue;
 274
 275                 // gets file status
 276                 File = AddName(pszDirectory, fname);
 277
 278                 // FIXME: we don't get this file exists/stattable
 279                 FileInfo fileInfo(File, true);
 280                 fileInfo.modeString(szMode);
 281                 unsigned int nlink = fileInfo.getNumberOfLinks();
 282                 string user =   lyxUserCache.find(fileInfo.getUid());
 283                 string group = lyxGroupCache.find(fileInfo.getGid());
 284
 285                 time_t modtime = fileInfo.getModificationTime();
 286                 string Time = ctime(&modtime);
 287
 288                 if (curTime > modtime + SIX_MONTH_SEC
 289                     || curTime < modtime + ONE_HOUR_SEC) {
 290                         // The file is fairly old or in the future. POSIX says
 291                         // the cutoff is 6 months old. Allow a 1 hour slop
 292                         // factor for what is considered "the future", to
 293                         // allow for NFS server/client clock disagreement.
 294                         // Show the year instead of the time of day.
 295                         Time.erase(10, 9);
 296                         Time.erase(15, string::npos);
 297                 } else {
 298                         Time.erase(16, string::npos);
 299                 }
 300
 301                 string Buffer = string(szMode) + ' ' +
 302                         tostr(nlink) + ' ' +
 303                         user + ' ' +
 304                         group + ' ' +
 305                         Time.substr(4, string::npos) + ' ';
 306
 307                 Buffer += pDirEntry->d_name;
 308                 Buffer += fileInfo.typeIndicator();
 309
 310                 if ((isLink = fileInfo.isLink())) {
 311                         string Link;
 312
 313                         if (LyXReadLink(File, Link)) {
 314                                 Buffer += " -> ";
 315                                 Buffer += Link;
 316
 317                                 // This gives the FileType of the file that
 318                                 // is really pointed too after resolving all
 319                                 // symlinks. This is not necessarily the same
 320                                 // as the type of Link (which could again be a
 321                                 // link). Is that intended?
 322                                 //                              JV 199902
 323                                 fileInfo.newFile(File);
 324                                 Buffer += fileInfo.typeIndicator();
 325                         }
 326                 }
 327
 328                 // filters files according to pattern and type
 329                 if (fileInfo.isRegular()
 330                     || fileInfo.isChar()
 331                     || fileInfo.isBlock()
 332                     || fileInfo.isFifo()) {
 333                         if (!regexMatch(fname, pszMask))
 334                                 continue;
 335                 } else if (!(isDir = fileInfo.isDir()))
 336                         continue;
 337
 338                 DirEntry tmp;
 339
 340                 // Note pszLsEntry is an string!
 341                 tmp.pszLsEntry = Buffer;
 342                 // creates used name
 343                 string temp = fname;
 344                 if (isDir) temp += '/';
 345
 346                 tmp.pszName = temp;
 347                 // creates displayed name
 348                 temp = pDirEntry->d_name;
 349                 if (isLink)
 350                         temp += '@';
 351                 else
 352                         temp += fileInfo.typeIndicator();
 353                 tmp.pszDisplayed = temp;
 354
 355                 direntries.push_back(tmp);
 356         }
 357
 358         closedir(pDirectory);
 359
 360         // Sort the names
 361         sort(direntries.begin(), direntries.end(), comp_direntry());
 362
 363         // Add them to directory box
 364         for (DirEntries::const_iterator cit = direntries.begin();
 365              cit != direntries.end(); ++cit) {
 366                 string const temp = line + cit->pszDisplayed;
 367                 fl_add_browser_line(pFileDlgForm->List, temp.c_str());
 368         }
 369         fl_set_browser_topline(pFileDlgForm->List, iDepth);
 370         fl_show_object(pFileDlgForm->List);
 371         iLastSel = -1;
 372 }
 373
 374
 375 // SetDirectory: sets dialog current directory
 376 void FileDialog::Private::SetDirectory(string const & Path)
 377 {
 378
 379         string tmp;
 380
 381         if (Path.empty())
 382                 tmp = lyx::getcwd();
 383         else
 384                 tmp = MakeAbsPath(ExpandPath(Path), pszDirectory);
 385
 386         // must check the directory exists
 387         DIR * pDirectory = ::opendir(tmp.c_str());
 388         if (!pDirectory) {
 389                 Alert::err_alert(_("Warning! Couldn't open directory."), tmp);
 390         } else {
 391                 ::closedir(pDirectory);
 392                 pszDirectory = tmp;
 393         }
 394 }
 395
 396
 397 // SetMask: sets dialog file mask
 398 void FileDialog::Private::SetMask(string const & NewMask)
 399 {
 400         pszMask = NewMask;
 401         fl_set_input(pFileDlgForm->PatBox, pszMask.c_str());
 402 }
 403
 404
 405 // SetInfoLine: sets dialog information line
 406 void FileDialog::Private::SetInfoLine(string const & Line)
 407 {
 408         pszInfoLine = Line;
 409         fl_set_object_label(pFileDlgForm->FileInfo, pszInfoLine.c_str());
 410 }
 411
 412
 413 FileDialog::Private::Private()
 414 {
 415         pszDirectory = MakeAbsPath(string("."));
 416         pszMask = '*';
 417
 418         // Creates form if necessary.
 419         if (!pFileDlgForm) {
 420                 pFileDlgForm = build_filedialog();
 421                 // Set callbacks. This means that we don't need a patch file
 422                 fl_set_object_callback(pFileDlgForm->DirBox,
 423                                        C_LyXFileDlg_FileDlgCB, 0);
 424                 fl_set_object_callback(pFileDlgForm->PatBox,
 425                                        C_LyXFileDlg_FileDlgCB, 1);
 426                 fl_set_object_callback(pFileDlgForm->List,
 427                                        C_LyXFileDlg_FileDlgCB, 2);
 428                 fl_set_object_callback(pFileDlgForm->Filename,
 429                                        C_LyXFileDlg_FileDlgCB, 3);
 430                 fl_set_object_callback(pFileDlgForm->Rescan,
 431                                        C_LyXFileDlg_FileDlgCB, 10);
 432                 fl_set_object_callback(pFileDlgForm->Home,
 433                                        C_LyXFileDlg_FileDlgCB, 11);
 434                 fl_set_object_callback(pFileDlgForm->User1,
 435                                        C_LyXFileDlg_FileDlgCB, 12);
 436                 fl_set_object_callback(pFileDlgForm->User2,
 437                                        C_LyXFileDlg_FileDlgCB, 13);
 438
 439                 // Make sure pressing the close box doesn't crash LyX. (RvdK)
 440                 fl_set_form_atclose(pFileDlgForm->form,
 441                                     C_LyXFileDlg_CancelCB, 0);
 442                 // Register doubleclick callback
 443                 fl_set_browser_dblclick_callback(pFileDlgForm->List,
 444                                                  C_LyXFileDlg_DoubleClickCB,
 445                                                  0);
 446         }
 447         fl_hide_object(pFileDlgForm->User1);
 448         fl_hide_object(pFileDlgForm->User2);
 449
 450         r_ = Dialogs::redrawGUI.connect(SigC::slot(this, &FileDialog::Private::redraw));
 451 }
 452
 453
 454 FileDialog::Private::~Private()
 455 {
 456         r_.disconnect();
 457 }
 458
 459
 460 void FileDialog::Private::redraw()
 461 {
 462         if (pFileDlgForm->form && pFileDlgForm->form->visible)
 463                 fl_redraw_form(pFileDlgForm->form);
 464 }
 465
 466
 467 // SetButton: sets file selector user button action
 468 void FileDialog::Private::SetButton(int iIndex, string const & pszName,
 469                            string const & pszPath)
 470 {
 471         FL_OBJECT * pObject;
 472         string * pTemp;
 473
 474         if (iIndex == 0) {
 475                 pObject = pFileDlgForm->User1;
 476                 pTemp = &pszUserPath1;
 477         } else if (iIndex == 1) {
 478                 pObject = pFileDlgForm->User2;
 479                 pTemp = &pszUserPath2;
 480         } else return;
 481
 482         if (!pszName.empty()) {
 483                 fl_set_object_label(pObject, pszName.c_str());
 484                 fl_show_object(pObject);
 485                 *pTemp = pszPath;
 486         } else {
 487                 fl_hide_object(pObject);
 488                 pTemp->erase();
 489         }
 490 }
 491
 492
 493 // GetDirectory: gets last dialog directory
 494 string const FileDialog::Private::GetDirectory() const
 495 {
 496         if (!pszDirectory.empty())
 497                 return pszDirectory;
 498         else
 499                 return string(".");
 500 }
 501
 502
 503 // RunDialog: handle dialog during file selection
 504 bool FileDialog::Private::RunDialog()
 505 {
 506         force_cancel = false;
 507         force_ok = false;
 508
 509         // event loop
 510         while (true) {
 511                 FL_OBJECT * pObject = fl_do_forms();
 512
 513                 if (pObject == pFileDlgForm->Ready) {
 514                         if (HandleOK())
 515                                 return true;
 516                 } else if (pObject == pFileDlgForm->Cancel
 517                            || force_cancel)
 518                         return false;
 519                 else if (force_ok)
 520                         return true;
 521         }
 522 }
 523
 524
 525 // XForms objects callback (static)
 526 void FileDialog::Private::FileDlgCB(FL_OBJECT *, long lArgument)
 527 {
 528         if (!pCurrentDlg) return;
 529
 530         switch (lArgument) {
 531
 532         case 0: // get directory
 533                 pCurrentDlg->SetDirectory(fl_get_input(pFileDlgForm->DirBox));
 534                 pCurrentDlg->Reread();
 535                 break;
 536
 537         case 1: // get mask
 538                 pCurrentDlg->SetMask(fl_get_input(pFileDlgForm->PatBox));
 539                 pCurrentDlg->Reread();
 540                 break;
 541
 542         case 2: // list
 543                 pCurrentDlg->HandleListHit();
 544                 break;
 545
 546         case 10: // rescan
 547                 pCurrentDlg->SetDirectory(fl_get_input(pFileDlgForm->DirBox));
 548                 pCurrentDlg->SetMask(fl_get_input(pFileDlgForm->PatBox));
 549                 pCurrentDlg->Reread();
 550                 break;
 551
 552         case 11: // home
 553                 pCurrentDlg->SetDirectory(GetEnvPath("HOME"));
 554                 pCurrentDlg->SetMask(fl_get_input(pFileDlgForm->PatBox));
 555                 pCurrentDlg->Reread();
 556                 break;
 557
 558         case 12: // user button 1
 559                 pCurrentDlg->SetDirectory(pCurrentDlg->pszUserPath1);
 560                 pCurrentDlg->SetMask(fl_get_input(pFileDlgForm
 561                                                   ->PatBox));
 562                 pCurrentDlg->Reread();
 563                 break;
 564
 565         case 13: // user button 2
 566                 pCurrentDlg->SetDirectory(pCurrentDlg->pszUserPath2);
 567                 pCurrentDlg->SetMask(fl_get_input(pFileDlgForm
 568                                                   ->PatBox));
 569                 pCurrentDlg->Reread();
 570                 break;
 571
 572         }
 573 }
 574
 575
 576 // Handle callback from list
 577 void FileDialog::Private::HandleListHit()
 578 {
 579         // set info line
 580         int const iSelect = fl_get_browser(pFileDlgForm->List);
 581         if (iSelect > iDepth)  {
 582                 SetInfoLine(direntries[iSelect - iDepth - 1].pszLsEntry);
 583         } else {
 584                 SetInfoLine(string());
 585         }
 586 }
 587
 588
 589 // Callback for double click in list
 590 void FileDialog::Private::DoubleClickCB(FL_OBJECT *, long)
 591 {
 592         if (pCurrentDlg->HandleDoubleClick())
 593                 // Simulate click on OK button
 594                 pCurrentDlg->Force(false);
 595 }
 596
 597
 598 // Handle double click from list
 599 bool FileDialog::Private::HandleDoubleClick()
 600 {
 601         string pszTemp;
 602
 603         // set info line
 604         bool isDir = true;
 605         int const iSelect = fl_get_browser(pFileDlgForm->List);
 606         if (iSelect > iDepth)  {
 607                 pszTemp = direntries[iSelect - iDepth - 1].pszName;
 608                 SetInfoLine(direntries[iSelect - iDepth - 1].pszLsEntry);
 609                 if (!suffixIs(pszTemp, '/')) {
 610                         isDir = false;
 611                         fl_set_input(pFileDlgForm->Filename, pszTemp.c_str());
 612                 }
 613         } else if (iSelect != 0) {
 614                 SetInfoLine(string());
 615         } else
 616                 return true;
 617
 618         // executes action
 619         if (isDir) {
 620                 string Temp;
 621
 622                 // builds new directory name
 623                 if (iSelect > iDepth) {
 624                         // Directory deeper down
 625                         // First, get directory with trailing /
 626                         Temp = fl_get_input(pFileDlgForm->DirBox);
 627                         if (!suffixIs(Temp, '/'))
 628                                 Temp += '/';
 629                         Temp += pszTemp;
 630                 } else {
 631                         // Directory higher up
 632                         Temp.erase();
 633                         for (int i = 0; i < iSelect; ++i) {
 634                                 string piece = fl_get_browser_line(pFileDlgForm->List, i+1);
 635                                 // The '+2' is here to count the '@b' (JMarc)
 636                                 Temp += piece.substr(i + 2);
 637                         }
 638                 }
 639
 640                 // assigns it
 641                 SetDirectory(Temp);
 642                 Reread();
 643                 return false;
 644         }
 645         return true;
 646 }
 647
 648
 649 // Handle OK button call
 650 bool FileDialog::Private::HandleOK()
 651 {
 652         // mask was changed
 653         string pszTemp = fl_get_input(pFileDlgForm->PatBox);
 654         if (pszTemp != pszMask) {
 655                 SetMask(pszTemp);
 656                 Reread();
 657                 return false;
 658         }
 659
 660         // directory was changed
 661         pszTemp = fl_get_input(pFileDlgForm->DirBox);
 662         if (pszTemp!= pszDirectory) {
 663                 SetDirectory(pszTemp);
 664                 Reread();
 665                 return false;
 666         }
 667
 668         // Handle return from list
 669         int const select = fl_get_browser(pFileDlgForm->List);
 670         if (select > iDepth) {
 671                 string const temp = direntries[select - iDepth - 1].pszName;
 672                 if (!suffixIs(temp, '/')) {
 673                         // If user didn't type anything, use browser
 674                         string const name =
 675                                 fl_get_input(pFileDlgForm->Filename);
 676                         if (name.empty()) {
 677                                 fl_set_input(pFileDlgForm->Filename, temp.c_str());
 678                         }
 679                         return true;
 680                 }
 681         }
 682
 683         // Emulate a doubleclick
 684         return HandleDoubleClick();
 685 }
 686
 687
 688 // Handle Cancel CB from WM close
 689 int FileDialog::Private::CancelCB(FL_FORM *, void *)
 690 {
 691         // Simulate a click on the cancel button
 692         pCurrentDlg->Force(true);
 693         return FL_IGNORE;
 694 }
 695
 696
 697 // Simulates a click on OK/Cancel
 698 void FileDialog::Private::Force(bool cancel)
 699 {
 700         if (cancel) {
 701                 force_cancel = true;
 702                 fl_set_button(pFileDlgForm->Cancel, 1);
 703         } else {
 704                 force_ok = true;
 705                 fl_set_button(pFileDlgForm->Ready, 1);
 706         }
 707         // Start timer to break fl_do_forms loop soon
 708         fl_set_timer(pFileDlgForm->timer, 0.1);
 709 }
 710
 711
 712 // Select: launches dialog and returns selected file
 713 string const FileDialog::Private::Select(string const & title,
 714                                          string const & path,
 715                                          string const & mask,
 716                                          string const & suggested)
 717 {
 718         // handles new mask and path
 719         bool isOk = true;
 720         if (!mask.empty()) {
 721                 SetMask(mask);
 722                 isOk = false;
 723         }
 724         if (!path.empty()) {
 725                 SetDirectory(path);
 726                 isOk = false;
 727         }
 728         if (!isOk) Reread();
 729
 730         // highlight the suggested file in the browser, if it exists.
 731         int sel = 0;
 732         string const filename = OnlyFilename(suggested);
 733         if (!filename.empty()) {
 734                 for (int i = 0;
 735                      i < fl_get_browser_maxline(pFileDlgForm->List); ++i) {
 736                         string s =
 737                                 fl_get_browser_line(pFileDlgForm->List, i + 1);
 738                         s = strip(frontStrip(s));
 739                         if (s == filename) {
 740                                 sel = i + 1;
 741                                 break;
 742                         }
 743                 }
 744         }
 745
 746         if (sel != 0) fl_select_browser_line(pFileDlgForm->List, sel);
 747         int const top = max(sel - 5, 1);
 748         fl_set_browser_topline(pFileDlgForm->List, top);
 749
 750         // checks whether dialog can be started
 751         if (pCurrentDlg) return string();
 752         pCurrentDlg = this;
 753
 754         // runs dialog
 755         SetInfoLine(string());
 756         fl_set_input(pFileDlgForm->Filename, suggested.c_str());
 757         fl_set_button(pFileDlgForm->Cancel, 0);
 758         fl_set_button(pFileDlgForm->Ready, 0);
 759         fl_set_focus_object(pFileDlgForm->form, pFileDlgForm->Filename);
 760         fl_deactivate_all_forms();
 761         fl_show_form(pFileDlgForm->form,
 762                      FL_PLACE_MOUSE | FL_FREE_SIZE, 0,
 763                      title.c_str());
 764
 765         isOk = RunDialog();
 766
 767         fl_hide_form(pFileDlgForm->form);
 768         fl_activate_all_forms();
 769         pCurrentDlg = 0;
 770
 771         // Returns filename or string() if no valid selection was made
 772         if (!isOk || !fl_get_input(pFileDlgForm->Filename)[0]) return string();
 773
 774         pszFileName = fl_get_input(pFileDlgForm->Filename);
 775
 776         if (!AbsolutePath(pszFileName)) {
 777                 pszFileName = AddName(fl_get_input(pFileDlgForm->DirBox),
 778                                       pszFileName);
 779         }
 780         return pszFileName;
 781 }