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 #include "xforms_helpers.h"
  31
  32
  33 #ifdef HAVE_ERRNO_H
  34 #include <cerrno>
  35 #endif
  36
  37 #if HAVE_DIRENT_H
  38 # include <dirent.h>
  39 # define NAMLEN(dirent) strlen((dirent)->d_name)
  40 #else
  41 # define dirent direct
  42 # define NAMLEN(dirent) (dirent)->d_namlen
  43 # if HAVE_SYS_NDIR_H
  44 #  include <sys/ndir.h>
  45 # endif
  46 # if HAVE_SYS_DIR_H
  47 #  include <sys/dir.h>
  48 # endif
  49 # if HAVE_NDIR_H
  50 #  include <ndir.h>
  51 # endif
  52 #endif
  53
  54 #if TIME_WITH_SYS_TIME
  55 # include <sys/time.h>
  56 # include <ctime>
  57 #else
  58 # if HAVE_SYS_TIME_H
  59 #  include <sys/time.h>
  60 # else
  61 #  include <ctime>
  62 # endif
  63 #endif
  64
  65 // FIXME: should be autoconfiscated
  66 #ifdef BROKEN_HEADERS
  67 extern "C" int gettimeofday(struct timeval *, struct timezone *);
  68 #endif
  69
  70 #ifdef __GNUG__
  71 #pragma implementation
  72 #endif
  73
  74 #include "support/filetools.h"
  75 #include "FormFiledialog.h"
  76
  77 namespace {
  78
  79 // six months, in seconds
  80 long const SIX_MONTH_SEC = 6L * 30L * 24L * 60L * 60L;
  81 //static
  82 long const ONE_HOUR_SEC = 60L * 60L;
  83
  84 extern "C" {
  85
  86         static
  87         int C_LyXFileDlg_CancelCB(FL_FORM *fl, void *xev)
  88         {
  89                 return FileDialog::Private::CancelCB(fl, xev);
  90         }
  91
  92         static
  93         void C_LyXFileDlg_DoubleClickCB(FL_OBJECT * ob, long data)
  94         {
  95                 FileDialog::Private::DoubleClickCB(ob, data);
  96         }
  97
  98         static
  99         void C_LyXFileDlg_FileDlgCB(FL_OBJECT * ob, long data)
 100         {
 101                 FileDialog::Private::FileDlgCB(ob, data);
 102         }
 103
 104 }
 105
 106 } // namespace anon
 107
 108
 109 // *** User cache class implementation
 110 /// User cache class definition
 111 class UserCache {
 112 public:
 113         /// seeks user name from group ID
 114         string const & find(uid_t ID) const {
 115                 Users::const_iterator cit = users.find(ID);
 116                 if (cit == users.end()) {
 117                         add(ID);
 118                         return users[ID];
 119                 }
 120                 return cit->second;
 121         }
 122 private:
 123         ///
 124         void add(uid_t ID) const;
 125         ///
 126         typedef map<uid_t, string> Users;
 127         ///
 128         mutable Users users;
 129 };
 130
 131
 132 void UserCache::add(uid_t ID) const
 133 {
 134         string pszNewName;
 135         struct passwd * pEntry;
 136
 137         // gets user name
 138         if ((pEntry = getpwuid(ID)))
 139                 pszNewName = pEntry->pw_name;
 140         else {
 141                 pszNewName = tostr(ID);
 142         }
 143
 144         // adds new node
 145         users[ID] = pszNewName;
 146 }
 147
 148
 149 /// Group cache class definition
 150 class GroupCache {
 151 public:
 152         /// seeks group name from group ID
 153         string const & find(gid_t ID) const ;
 154 private:
 155         ///
 156         void add(gid_t ID) const;
 157         ///
 158         typedef map<gid_t, string> Groups;
 159         ///
 160         mutable Groups groups;
 161 };
 162
 163
 164 string const & GroupCache::find(gid_t ID) const
 165 {
 166         Groups::const_iterator cit = groups.find(ID);
 167         if (cit == groups.end()) {
 168                 add(ID);
 169                 return groups[ID];
 170         }
 171         return cit->second;
 172 }
 173
 174
 175 void GroupCache::add(gid_t ID) const
 176 {
 177         string pszNewName;
 178         struct group * pEntry;
 179
 180         // gets user name
 181         if ((pEntry = getgrgid(ID))) pszNewName = pEntry->gr_name;
 182         else {
 183                 pszNewName = tostr(ID);
 184         }
 185         // adds new node
 186         groups[ID] = pszNewName;
 187 }
 188
 189
 190 namespace {
 191
 192 // local instances
 193 UserCache lyxUserCache;
 194 GroupCache lyxGroupCache;
 195
 196 } // namespace anon
 197
 198
 199 // compares two LyXDirEntry objects content (used for sort)
 200 class comp_direntry {
 201 public:
 202         int operator()(DirEntry const & r1,
 203                        DirEntry const & r2) const ;
 204 };
 205         int comp_direntry::operator()(DirEntry const & r1,
 206                        DirEntry const & r2) const {
 207                 bool r1d = suffixIs(r1.pszName, '/');
 208                 bool r2d = suffixIs(r2.pszName, '/');
 209                 if (r1d && !r2d) return 1;
 210                 if (!r1d && r2d) return 0;
 211                 return r1.pszName < r2.pszName;
 212         }
 213
 214
 215 // *** FileDialog::Private class implementation
 216
 217 // static members
 218 FD_form_filedialog * FileDialog::Private::pFileDlgForm = 0;
 219 FileDialog::Private * FileDialog::Private::pCurrentDlg = 0;
 220
 221
 222 // Reread: updates dialog list to match class directory
 223 void FileDialog::Private::Reread()
 224 {
 225         // Opens directory
 226         DIR * pDirectory = ::opendir(pszDirectory.c_str());
 227         if (!pDirectory) {
 228                 Alert::err_alert(_("Warning! Couldn't open directory."),
 229                              pszDirectory);
 230                 pszDirectory = lyx::getcwd();
 231                 pDirectory = ::opendir(pszDirectory.c_str());
 232         }
 233
 234         // Clear the present namelist
 235         direntries.clear();
 236
 237         // Updates display
 238         fl_hide_object(pFileDlgForm->List);
 239         fl_clear_browser(pFileDlgForm->List);
 240         fl_set_input(pFileDlgForm->DirBox, pszDirectory.c_str());
 241
 242         // Splits complete directory name into directories and compute depth
 243         iDepth = 0;
 244         string line, Temp;
 245         char szMode[15];
 246         string File = pszDirectory;
 247         if (File != "/") {
 248                 File = split(File, Temp, '/');
 249         }
 250         while (!File.empty() || !Temp.empty()) {
 251                 string dline = "@b"+line + Temp + '/';
 252                 fl_add_browser_line(pFileDlgForm->List, dline.c_str());
 253                 File = split(File, Temp, '/');
 254                 line += ' ';
 255                 ++iDepth;
 256         }
 257
 258         // Parses all entries of the given subdirectory
 259         time_t curTime = time(0);
 260         rewinddir(pDirectory);
 261         struct dirent * pDirEntry;
 262         while ((pDirEntry = readdir(pDirectory))) {
 263                 bool isLink = false, isDir = false;
 264
 265                 // If the pattern doesn't start with a dot, skip hidden files
 266                 if (!pszMask.empty() && pszMask[0] != '.' &&
 267                     pDirEntry->d_name[0] == '.')
 268                         continue;
 269
 270                 // Gets filename
 271                 string fname = pDirEntry->d_name;
 272
 273                 // Under all circumstances, "." and ".." are not wanted
 274                 if (fname == "." || fname == "..")
 275                         continue;
 276
 277                 // gets file status
 278                 File = AddName(pszDirectory, fname);
 279
 280                 // FIXME: we don't get this file exists/stattable
 281                 FileInfo fileInfo(File, true);
 282                 fileInfo.modeString(szMode);
 283                 unsigned int nlink = fileInfo.getNumberOfLinks();
 284                 string user =   lyxUserCache.find(fileInfo.getUid());
 285                 string group = lyxGroupCache.find(fileInfo.getGid());
 286
 287                 time_t modtime = fileInfo.getModificationTime();
 288                 string Time = ctime(&modtime);
 289
 290                 if (curTime > modtime + SIX_MONTH_SEC
 291                     || curTime < modtime + ONE_HOUR_SEC) {
 292                         // The file is fairly old or in the future. POSIX says
 293                         // the cutoff is 6 months old. Allow a 1 hour slop
 294                         // factor for what is considered "the future", to
 295                         // allow for NFS server/client clock disagreement.
 296                         // Show the year instead of the time of day.
 297                         Time.erase(10, 9);
 298                         Time.erase(15, string::npos);
 299                 } else {
 300                         Time.erase(16, string::npos);
 301                 }
 302
 303                 string Buffer = string(szMode) + ' ' +
 304                         tostr(nlink) + ' ' +
 305                         user + ' ' +
 306                         group + ' ' +
 307                         Time.substr(4, string::npos) + ' ';
 308
 309                 Buffer += pDirEntry->d_name;
 310                 Buffer += fileInfo.typeIndicator();
 311
 312                 if ((isLink = fileInfo.isLink())) {
 313                         string Link;
 314
 315                         if (LyXReadLink(File, Link)) {
 316                                 Buffer += " -> ";
 317                                 Buffer += Link;
 318
 319                                 // This gives the FileType of the file that
 320                                 // is really pointed too after resolving all
 321                                 // symlinks. This is not necessarily the same
 322                                 // as the type of Link (which could again be a
 323                                 // link). Is that intended?
 324                                 //                              JV 199902
 325                                 fileInfo.newFile(File);
 326                                 Buffer += fileInfo.typeIndicator();
 327                         }
 328                 }
 329
 330                 // filters files according to pattern and type
 331                 if (fileInfo.isRegular()
 332                     || fileInfo.isChar()
 333                     || fileInfo.isBlock()
 334                     || fileInfo.isFifo()) {
 335                         if (!regexMatch(fname, pszMask))
 336                                 continue;
 337                 } else if (!(isDir = fileInfo.isDir()))
 338                         continue;
 339
 340                 DirEntry tmp;
 341
 342                 // Note pszLsEntry is an string!
 343                 tmp.pszLsEntry = Buffer;
 344                 // creates used name
 345                 string temp = fname;
 346                 if (isDir) temp += '/';
 347
 348                 tmp.pszName = temp;
 349                 // creates displayed name
 350                 temp = pDirEntry->d_name;
 351                 if (isLink)
 352                         temp += '@';
 353                 else
 354                         temp += fileInfo.typeIndicator();
 355                 tmp.pszDisplayed = temp;
 356
 357                 direntries.push_back(tmp);
 358         }
 359
 360         closedir(pDirectory);
 361
 362         // Sort the names
 363         sort(direntries.begin(), direntries.end(), comp_direntry());
 364
 365         // Add them to directory box
 366         for (DirEntries::const_iterator cit = direntries.begin();
 367              cit != direntries.end(); ++cit) {
 368                 string const temp = line + cit->pszDisplayed;
 369                 fl_add_browser_line(pFileDlgForm->List, temp.c_str());
 370         }
 371         fl_set_browser_topline(pFileDlgForm->List, iDepth);
 372         fl_show_object(pFileDlgForm->List);
 373         iLastSel = -1;
 374 }
 375
 376
 377 // SetDirectory: sets dialog current directory
 378 void FileDialog::Private::SetDirectory(string const & Path)
 379 {
 380
 381         string tmp;
 382
 383         if (Path.empty())
 384                 tmp = lyx::getcwd();
 385         else
 386                 tmp = MakeAbsPath(ExpandPath(Path), pszDirectory);
 387
 388         // must check the directory exists
 389         DIR * pDirectory = ::opendir(tmp.c_str());
 390         if (!pDirectory) {
 391                 Alert::err_alert(_("Warning! Couldn't open directory."), tmp);
 392         } else {
 393                 ::closedir(pDirectory);
 394                 pszDirectory = tmp;
 395         }
 396 }
 397
 398
 399 // SetMask: sets dialog file mask
 400 void FileDialog::Private::SetMask(string const & NewMask)
 401 {
 402         pszMask = NewMask;
 403         fl_set_input(pFileDlgForm->PatBox, pszMask.c_str());
 404 }
 405
 406
 407 // SetInfoLine: sets dialog information line
 408 void FileDialog::Private::SetInfoLine(string const & Line)
 409 {
 410         pszInfoLine = Line;
 411         fl_set_object_label(pFileDlgForm->FileInfo, pszInfoLine.c_str());
 412 }
 413
 414
 415 FileDialog::Private::Private()
 416 {
 417         pszDirectory = MakeAbsPath(string("."));
 418         pszMask = '*';
 419
 420         // Creates form if necessary.
 421         if (!pFileDlgForm) {
 422                 pFileDlgForm = build_filedialog();
 423                 // Set callbacks. This means that we don't need a patch file
 424                 fl_set_object_callback(pFileDlgForm->DirBox,
 425                                        C_LyXFileDlg_FileDlgCB, 0);
 426                 fl_set_object_callback(pFileDlgForm->PatBox,
 427                                        C_LyXFileDlg_FileDlgCB, 1);
 428                 fl_set_object_callback(pFileDlgForm->List,
 429                                        C_LyXFileDlg_FileDlgCB, 2);
 430                 fl_set_object_callback(pFileDlgForm->Filename,
 431                                        C_LyXFileDlg_FileDlgCB, 3);
 432                 fl_set_object_callback(pFileDlgForm->Rescan,
 433                                        C_LyXFileDlg_FileDlgCB, 10);
 434                 fl_set_object_callback(pFileDlgForm->Home,
 435                                        C_LyXFileDlg_FileDlgCB, 11);
 436                 fl_set_object_callback(pFileDlgForm->User1,
 437                                        C_LyXFileDlg_FileDlgCB, 12);
 438                 fl_set_object_callback(pFileDlgForm->User2,
 439                                        C_LyXFileDlg_FileDlgCB, 13);
 440
 441                 // Make sure pressing the close box doesn't crash LyX. (RvdK)
 442                 fl_set_form_atclose(pFileDlgForm->form,
 443                                     C_LyXFileDlg_CancelCB, 0);
 444                 // Register doubleclick callback
 445                 fl_set_browser_dblclick_callback(pFileDlgForm->List,
 446                                                  C_LyXFileDlg_DoubleClickCB,
 447                                                  0);
 448         }
 449         fl_hide_object(pFileDlgForm->User1);
 450         fl_hide_object(pFileDlgForm->User2);
 451
 452         r_ = Dialogs::redrawGUI.connect(SigC::slot(this, &FileDialog::Private::redraw));
 453 }
 454
 455
 456 FileDialog::Private::~Private()
 457 {
 458         r_.disconnect();
 459 }
 460
 461
 462 void FileDialog::Private::redraw()
 463 {
 464         if (pFileDlgForm->form && pFileDlgForm->form->visible)
 465                 fl_redraw_form(pFileDlgForm->form);
 466 }
 467
 468
 469 // SetButton: sets file selector user button action
 470 void FileDialog::Private::SetButton(int iIndex, string const & pszName,
 471                            string const & pszPath)
 472 {
 473         FL_OBJECT * pObject;
 474         string * pTemp;
 475
 476         if (iIndex == 0) {
 477                 pObject = pFileDlgForm->User1;
 478                 pTemp = &pszUserPath1;
 479         } else if (iIndex == 1) {
 480                 pObject = pFileDlgForm->User2;
 481                 pTemp = &pszUserPath2;
 482         } else return;
 483
 484         if (!pszName.empty()) {
 485                 fl_set_object_label(pObject, idex(pszName.c_str()));
 486                 fl_set_button_shortcut(pObject, scex(pszName.c_str()), 1);
 487                 fl_show_object(pObject);
 488                 *pTemp = pszPath;
 489         } else {
 490                 fl_hide_object(pObject);
 491                 pTemp->erase();
 492         }
 493 }
 494
 495
 496 // GetDirectory: gets last dialog directory
 497 string const FileDialog::Private::GetDirectory() const
 498 {
 499         if (!pszDirectory.empty())
 500                 return pszDirectory;
 501         else
 502                 return string(".");
 503 }
 504
 505
 506 // RunDialog: handle dialog during file selection
 507 bool FileDialog::Private::RunDialog()
 508 {
 509         force_cancel = false;
 510         force_ok = false;
 511
 512         // event loop
 513         while (true) {
 514                 FL_OBJECT * pObject = fl_do_forms();
 515
 516                 if (pObject == pFileDlgForm->Ready) {
 517                         if (HandleOK())
 518                                 return true;
 519                 } else if (pObject == pFileDlgForm->Cancel
 520                            || force_cancel)
 521                         return false;
 522                 else if (force_ok)
 523                         return true;
 524         }
 525 }
 526
 527
 528 // XForms objects callback (static)
 529 void FileDialog::Private::FileDlgCB(FL_OBJECT *, long lArgument)
 530 {
 531         if (!pCurrentDlg) return;
 532
 533         switch (lArgument) {
 534
 535         case 0: // get directory
 536                 pCurrentDlg->SetDirectory(fl_get_input(pFileDlgForm->DirBox));
 537                 pCurrentDlg->Reread();
 538                 break;
 539
 540         case 1: // get mask
 541                 pCurrentDlg->SetMask(fl_get_input(pFileDlgForm->PatBox));
 542                 pCurrentDlg->Reread();
 543                 break;
 544
 545         case 2: // list
 546                 pCurrentDlg->HandleListHit();
 547                 break;
 548
 549         case 10: // rescan
 550                 pCurrentDlg->SetDirectory(fl_get_input(pFileDlgForm->DirBox));
 551                 pCurrentDlg->SetMask(fl_get_input(pFileDlgForm->PatBox));
 552                 pCurrentDlg->Reread();
 553                 break;
 554
 555         case 11: // home
 556                 pCurrentDlg->SetDirectory(GetEnvPath("HOME"));
 557                 pCurrentDlg->SetMask(fl_get_input(pFileDlgForm->PatBox));
 558                 pCurrentDlg->Reread();
 559                 break;
 560
 561         case 12: // user button 1
 562                 pCurrentDlg->SetDirectory(pCurrentDlg->pszUserPath1);
 563                 pCurrentDlg->SetMask(fl_get_input(pFileDlgForm
 564                                                   ->PatBox));
 565                 pCurrentDlg->Reread();
 566                 break;
 567
 568         case 13: // user button 2
 569                 pCurrentDlg->SetDirectory(pCurrentDlg->pszUserPath2);
 570                 pCurrentDlg->SetMask(fl_get_input(pFileDlgForm
 571                                                   ->PatBox));
 572                 pCurrentDlg->Reread();
 573                 break;
 574
 575         }
 576 }
 577
 578
 579 // Handle callback from list
 580 void FileDialog::Private::HandleListHit()
 581 {
 582         // set info line
 583         int const iSelect = fl_get_browser(pFileDlgForm->List);
 584         if (iSelect > iDepth)  {
 585                 SetInfoLine(direntries[iSelect - iDepth - 1].pszLsEntry);
 586         } else {
 587                 SetInfoLine(string());
 588         }
 589 }
 590
 591
 592 // Callback for double click in list
 593 void FileDialog::Private::DoubleClickCB(FL_OBJECT *, long)
 594 {
 595         if (pCurrentDlg->HandleDoubleClick())
 596                 // Simulate click on OK button
 597                 pCurrentDlg->Force(false);
 598 }
 599
 600
 601 // Handle double click from list
 602 bool FileDialog::Private::HandleDoubleClick()
 603 {
 604         string pszTemp;
 605
 606         // set info line
 607         bool isDir = true;
 608         int const iSelect = fl_get_browser(pFileDlgForm->List);
 609         if (iSelect > iDepth)  {
 610                 pszTemp = direntries[iSelect - iDepth - 1].pszName;
 611                 SetInfoLine(direntries[iSelect - iDepth - 1].pszLsEntry);
 612                 if (!suffixIs(pszTemp, '/')) {
 613                         isDir = false;
 614                         fl_set_input(pFileDlgForm->Filename, pszTemp.c_str());
 615                 }
 616         } else if (iSelect != 0) {
 617                 SetInfoLine(string());
 618         } else
 619                 return true;
 620
 621         // executes action
 622         if (isDir) {
 623                 string Temp;
 624
 625                 // builds new directory name
 626                 if (iSelect > iDepth) {
 627                         // Directory deeper down
 628                         // First, get directory with trailing /
 629                         Temp = fl_get_input(pFileDlgForm->DirBox);
 630                         if (!suffixIs(Temp, '/'))
 631                                 Temp += '/';
 632                         Temp += pszTemp;
 633                 } else {
 634                         // Directory higher up
 635                         Temp.erase();
 636                         for (int i = 0; i < iSelect; ++i) {
 637                                 string piece = fl_get_browser_line(pFileDlgForm->List, i+1);
 638                                 // The '+2' is here to count the '@b' (JMarc)
 639                                 Temp += piece.substr(i + 2);
 640                         }
 641                 }
 642
 643                 // assigns it
 644                 SetDirectory(Temp);
 645                 Reread();
 646                 return false;
 647         }
 648         return true;
 649 }
 650
 651
 652 // Handle OK button call
 653 bool FileDialog::Private::HandleOK()
 654 {
 655         // mask was changed
 656         string pszTemp = fl_get_input(pFileDlgForm->PatBox);
 657         if (pszTemp != pszMask) {
 658                 SetMask(pszTemp);
 659                 Reread();
 660                 return false;
 661         }
 662
 663         // directory was changed
 664         pszTemp = fl_get_input(pFileDlgForm->DirBox);
 665         if (pszTemp!= pszDirectory) {
 666                 SetDirectory(pszTemp);
 667                 Reread();
 668                 return false;
 669         }
 670
 671         // Handle return from list
 672         int const select = fl_get_browser(pFileDlgForm->List);
 673         if (select > iDepth) {
 674                 string const temp = direntries[select - iDepth - 1].pszName;
 675                 if (!suffixIs(temp, '/')) {
 676                         // If user didn't type anything, use browser
 677                         string const name =
 678                                 fl_get_input(pFileDlgForm->Filename);
 679                         if (name.empty()) {
 680                                 fl_set_input(pFileDlgForm->Filename, temp.c_str());
 681                         }
 682                         return true;
 683                 }
 684         }
 685
 686         // Emulate a doubleclick
 687         return HandleDoubleClick();
 688 }
 689
 690
 691 // Handle Cancel CB from WM close
 692 int FileDialog::Private::CancelCB(FL_FORM *, void *)
 693 {
 694         // Simulate a click on the cancel button
 695         pCurrentDlg->Force(true);
 696         return FL_IGNORE;
 697 }
 698
 699
 700 // Simulates a click on OK/Cancel
 701 void FileDialog::Private::Force(bool cancel)
 702 {
 703         if (cancel) {
 704                 force_cancel = true;
 705                 fl_set_button(pFileDlgForm->Cancel, 1);
 706         } else {
 707                 force_ok = true;
 708                 fl_set_button(pFileDlgForm->Ready, 1);
 709         }
 710         // Start timer to break fl_do_forms loop soon
 711         fl_set_timer(pFileDlgForm->timer, 0.1);
 712 }
 713
 714
 715 // Select: launches dialog and returns selected file
 716 string const FileDialog::Private::Select(string const & title,
 717                                          string const & path,
 718                                          string const & mask,
 719                                          string const & suggested)
 720 {
 721         // handles new mask and path
 722         bool isOk = true;
 723         if (!mask.empty()) {
 724                 SetMask(mask);
 725                 isOk = false;
 726         }
 727         if (!path.empty()) {
 728                 SetDirectory(path);
 729                 isOk = false;
 730         }
 731         if (!isOk) Reread();
 732
 733         // highlight the suggested file in the browser, if it exists.
 734         int sel = 0;
 735         string const filename = OnlyFilename(suggested);
 736         if (!filename.empty()) {
 737                 for (int i = 0;
 738                      i < fl_get_browser_maxline(pFileDlgForm->List); ++i) {
 739                         string s =
 740                                 fl_get_browser_line(pFileDlgForm->List, i + 1);
 741                         s = strip(frontStrip(s));
 742                         if (s == filename) {
 743                                 sel = i + 1;
 744                                 break;
 745                         }
 746                 }
 747         }
 748
 749         if (sel != 0) fl_select_browser_line(pFileDlgForm->List, sel);
 750         int const top = max(sel - 5, 1);
 751         fl_set_browser_topline(pFileDlgForm->List, top);
 752
 753         // checks whether dialog can be started
 754         if (pCurrentDlg) return string();
 755         pCurrentDlg = this;
 756
 757         // runs dialog
 758         SetInfoLine(string());
 759         fl_set_input(pFileDlgForm->Filename, suggested.c_str());
 760         fl_set_button(pFileDlgForm->Cancel, 0);
 761         fl_set_button(pFileDlgForm->Ready, 0);
 762         fl_set_focus_object(pFileDlgForm->form, pFileDlgForm->Filename);
 763         fl_deactivate_all_forms();
 764         fl_show_form(pFileDlgForm->form,
 765                      FL_PLACE_MOUSE | FL_FREE_SIZE, 0,
 766                      title.c_str());
 767
 768         isOk = RunDialog();
 769
 770         fl_hide_form(pFileDlgForm->form);
 771         fl_activate_all_forms();
 772         pCurrentDlg = 0;
 773
 774         // Returns filename or string() if no valid selection was made
 775         if (!isOk || !fl_get_input(pFileDlgForm->Filename)[0]) return string();
 776
 777         pszFileName = fl_get_input(pFileDlgForm->Filename);
 778
 779         if (!AbsolutePath(pszFileName)) {
 780                 pszFileName = AddName(fl_get_input(pFileDlgForm->DirBox),
 781                                       pszFileName);
 782         }
 783         return pszFileName;
 784 }