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 "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                 WriteFSAlert(_("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         FileInfo fileInfo;
 245         string File = pszDirectory;
 246         if (File != "/") {
 247                 File = split(File, Temp, '/');
 248         }
 249         while (!File.empty() || !Temp.empty()) {
 250                 string dline = "@b"+line + Temp + '/';
 251                 fl_add_browser_line(pFileDlgForm->List, dline.c_str());
 252                 File = split(File, Temp, '/');
 253                 line += ' ';
 254                 ++iDepth;
 255         }
 256
 257         // Parses all entries of the given subdirectory
 258         time_t curTime = time(0);
 259         rewinddir(pDirectory);
 260         struct dirent * pDirEntry;
 261         while ((pDirEntry = readdir(pDirectory))) {
 262                 bool isLink = false, isDir = false;
 263
 264                 // If the pattern doesn't start with a dot, skip hidden files
 265                 if (!pszMask.empty() && pszMask[0] != '.' &&
 266                     pDirEntry->d_name[0] == '.')
 267                         continue;
 268
 269                 // Gets filename
 270                 string fname = pDirEntry->d_name;
 271
 272                 // Under all circumstances, "." and ".." are not wanted
 273                 if (fname == "." || fname == "..")
 274                         continue;
 275
 276                 // gets file status
 277                 File = AddName(pszDirectory, fname);
 278
 279                 fileInfo.newFile(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 > fileInfo.getModificationTime() + SIX_MONTH_SEC
 289                     || curTime < fileInfo.getModificationTime()
 290                     + ONE_HOUR_SEC) {
 291                         // The file is fairly old or in the future. POSIX says
 292                         // the cutoff is 6 months old. Allow a 1 hour slop
 293                         // factor for what is considered "the future", to
 294                         // allow for NFS server/client clock disagreement.
 295                         // Show the year instead of the time of day.
 296                         Time.erase(10, 9);
 297                         Time.erase(15, string::npos);
 298                 } else {
 299                         Time.erase(16, string::npos);
 300                 }
 301
 302                 string Buffer = string(szMode) + ' ' +
 303                         tostr(nlink) + ' ' +
 304                         user + ' ' +
 305                         group + ' ' +
 306                         Time.substr(4, string::npos) + ' ';
 307
 308                 Buffer += pDirEntry->d_name;
 309                 Buffer += fileInfo.typeIndicator();
 310
 311                 if ((isLink = fileInfo.isLink())) {
 312                         string Link;
 313
 314                         if (LyXReadLink(File, Link)) {
 315                                 Buffer += " -> ";
 316                                 Buffer += Link;
 317
 318                                 // This gives the FileType of the file that
 319                                 // is really pointed too after resolving all
 320                                 // symlinks. This is not necessarily the same
 321                                 // as the type of Link (which could again be a
 322                                 // link). Is that intended?
 323                                 //                              JV 199902
 324                                 fileInfo.newFile(File);
 325                                 Buffer += fileInfo.typeIndicator();
 326                         }
 327                 }
 328
 329                 // filters files according to pattern and type
 330                 if (fileInfo.isRegular()
 331                     || fileInfo.isChar()
 332                     || fileInfo.isBlock()
 333                     || fileInfo.isFifo()) {
 334                         if (!regexMatch(fname, pszMask))
 335                                 continue;
 336                 } else if (!(isDir = fileInfo.isDir()))
 337                         continue;
 338
 339                 DirEntry tmp;
 340
 341                 // Note pszLsEntry is an string!
 342                 tmp.pszLsEntry = Buffer;
 343                 // creates used name
 344                 string temp = fname;
 345                 if (isDir) temp += '/';
 346
 347                 tmp.pszName = temp;
 348                 // creates displayed name
 349                 temp = pDirEntry->d_name;
 350                 if (isLink)
 351                         temp += '@';
 352                 else
 353                         temp += fileInfo.typeIndicator();
 354                 tmp.pszDisplayed = temp;
 355
 356                 direntries.push_back(tmp);
 357         }
 358
 359         closedir(pDirectory);
 360
 361         // Sort the names
 362         sort(direntries.begin(), direntries.end(), comp_direntry());
 363
 364         // Add them to directory box
 365         for (DirEntries::const_iterator cit = direntries.begin();
 366              cit != direntries.end(); ++cit) {
 367                 string const temp = line + cit->pszDisplayed;
 368                 fl_add_browser_line(pFileDlgForm->List, temp.c_str());
 369         }
 370         fl_set_browser_topline(pFileDlgForm->List, iDepth);
 371         fl_show_object(pFileDlgForm->List);
 372         iLastSel = -1;
 373 }
 374
 375
 376 // SetDirectory: sets dialog current directory
 377 void FileDialog::Private::SetDirectory(string const & Path)
 378 {
 379         if (!pszDirectory.empty()) {
 380                 string TempPath = ExpandPath(Path); // Expand ~/
 381                 TempPath = MakeAbsPath(TempPath, pszDirectory);
 382                 pszDirectory = MakeAbsPath(TempPath);
 383         } else pszDirectory = MakeAbsPath(Path);
 384 }
 385
 386
 387 // SetMask: sets dialog file mask
 388 void FileDialog::Private::SetMask(string const & NewMask)
 389 {
 390         pszMask = NewMask;
 391         fl_set_input(pFileDlgForm->PatBox, pszMask.c_str());
 392 }
 393
 394
 395 // SetInfoLine: sets dialog information line
 396 void FileDialog::Private::SetInfoLine(string const & Line)
 397 {
 398         pszInfoLine = Line;
 399         fl_set_object_label(pFileDlgForm->FileInfo, pszInfoLine.c_str());
 400 }
 401
 402
 403 FileDialog::Private::Private()
 404 {
 405         pszDirectory = MakeAbsPath(string("."));
 406         pszMask = '*';
 407
 408         // Creates form if necessary.
 409         if (!pFileDlgForm) {
 410                 pFileDlgForm = build_filedialog();
 411                 // Set callbacks. This means that we don't need a patch file
 412                 fl_set_object_callback(pFileDlgForm->DirBox,
 413                                        C_LyXFileDlg_FileDlgCB, 0);
 414                 fl_set_object_callback(pFileDlgForm->PatBox,
 415                                        C_LyXFileDlg_FileDlgCB, 1);
 416                 fl_set_object_callback(pFileDlgForm->List,
 417                                        C_LyXFileDlg_FileDlgCB, 2);
 418                 fl_set_object_callback(pFileDlgForm->Filename,
 419                                        C_LyXFileDlg_FileDlgCB, 3);
 420                 fl_set_object_callback(pFileDlgForm->Rescan,
 421                                        C_LyXFileDlg_FileDlgCB, 10);
 422                 fl_set_object_callback(pFileDlgForm->Home,
 423                                        C_LyXFileDlg_FileDlgCB, 11);
 424                 fl_set_object_callback(pFileDlgForm->User1,
 425                                        C_LyXFileDlg_FileDlgCB, 12);
 426                 fl_set_object_callback(pFileDlgForm->User2,
 427                                        C_LyXFileDlg_FileDlgCB, 13);
 428
 429                 // Make sure pressing the close box doesn't crash LyX. (RvdK)
 430                 fl_set_form_atclose(pFileDlgForm->form,
 431                                     C_LyXFileDlg_CancelCB, 0);
 432                 // Register doubleclick callback
 433                 fl_set_browser_dblclick_callback(pFileDlgForm->List,
 434                                                  C_LyXFileDlg_DoubleClickCB,
 435                                                  0);
 436         }
 437         fl_hide_object(pFileDlgForm->User1);
 438         fl_hide_object(pFileDlgForm->User2);
 439
 440         r_ = Dialogs::redrawGUI.connect(SigC::slot(this, &FileDialog::Private::redraw));
 441 }
 442
 443
 444 FileDialog::Private::~Private()
 445 {
 446         r_.disconnect();
 447 }
 448
 449
 450 void FileDialog::Private::redraw()
 451 {
 452         if (pFileDlgForm->form && pFileDlgForm->form->visible)
 453                 fl_redraw_form(pFileDlgForm->form);
 454 }
 455
 456
 457 // SetButton: sets file selector user button action
 458 void FileDialog::Private::SetButton(int iIndex, string const & pszName,
 459                            string const & pszPath)
 460 {
 461         FL_OBJECT * pObject;
 462         string * pTemp;
 463
 464         if (iIndex == 0) {
 465                 pObject = pFileDlgForm->User1;
 466                 pTemp = &pszUserPath1;
 467         } else if (iIndex == 1) {
 468                 pObject = pFileDlgForm->User2;
 469                 pTemp = &pszUserPath2;
 470         } else return;
 471
 472         if (!pszName.empty() && !pszPath.empty()) {
 473                 fl_set_object_label(pObject, pszName.c_str());
 474                 fl_show_object(pObject);
 475                 *pTemp = pszPath;
 476         } else {
 477                 fl_hide_object(pObject);
 478                 pTemp->erase();
 479         }
 480 }
 481
 482
 483 // GetDirectory: gets last dialog directory
 484 string const FileDialog::Private::GetDirectory() const
 485 {
 486         if (!pszDirectory.empty())
 487                 return pszDirectory;
 488         else
 489                 return string(".");
 490 }
 491
 492
 493 // RunDialog: handle dialog during file selection
 494 bool FileDialog::Private::RunDialog()
 495 {
 496         force_cancel = false;
 497         force_ok = false;
 498
 499         // event loop
 500         while(true) {
 501                 FL_OBJECT * pObject = fl_do_forms();
 502
 503                 if (pObject == pFileDlgForm->Ready) {
 504                         if (HandleOK())
 505                                 return true;
 506                 } else if (pObject == pFileDlgForm->Cancel
 507                            || force_cancel)
 508                         return false;
 509                 else if (force_ok)
 510                         return true;
 511         }
 512 }
 513
 514
 515 // XForms objects callback (static)
 516 void FileDialog::Private::FileDlgCB(FL_OBJECT *, long lArgument)
 517 {
 518         if (!pCurrentDlg) return;
 519
 520         switch (lArgument) {
 521
 522         case 0: // get directory
 523                 pCurrentDlg->SetDirectory(fl_get_input(pFileDlgForm->DirBox));
 524                 pCurrentDlg->Reread();
 525                 break;
 526
 527         case 1: // get mask
 528                 pCurrentDlg->SetMask(fl_get_input(pFileDlgForm->PatBox));
 529                 pCurrentDlg->Reread();
 530                 break;
 531
 532         case 2: // list
 533                 pCurrentDlg->HandleListHit();
 534                 break;
 535
 536         case 10: // rescan
 537                 pCurrentDlg->SetDirectory(fl_get_input(pFileDlgForm->DirBox));
 538                 pCurrentDlg->SetMask(fl_get_input(pFileDlgForm->PatBox));
 539                 pCurrentDlg->Reread();
 540                 break;
 541
 542         case 11: // home
 543                 pCurrentDlg->SetDirectory(GetEnvPath("HOME"));
 544                 pCurrentDlg->SetMask(fl_get_input(pFileDlgForm->PatBox));
 545                 pCurrentDlg->Reread();
 546                 break;
 547
 548         case 12: // user button 1
 549                 if (!pCurrentDlg->pszUserPath1.empty()) {
 550                         pCurrentDlg->SetDirectory(pCurrentDlg->pszUserPath1);
 551                         pCurrentDlg->SetMask(fl_get_input(pFileDlgForm
 552                                                           ->PatBox));
 553                         pCurrentDlg->Reread();
 554                 }
 555                 break;
 556
 557         case 13: // user button 2
 558                 if (!pCurrentDlg->pszUserPath2.empty()) {
 559                         pCurrentDlg->SetDirectory(pCurrentDlg->pszUserPath2);
 560                         pCurrentDlg->SetMask(fl_get_input(pFileDlgForm
 561                                                           ->PatBox));
 562                         pCurrentDlg->Reread();
 563                 }
 564                 break;
 565
 566         }
 567 }
 568
 569
 570 // Handle callback from list
 571 void FileDialog::Private::HandleListHit()
 572 {
 573         // set info line
 574         int const iSelect = fl_get_browser(pFileDlgForm->List);
 575         if (iSelect > iDepth)  {
 576                 SetInfoLine(direntries[iSelect - iDepth - 1].pszLsEntry);
 577         } else {
 578                 SetInfoLine(string());
 579         }
 580 }
 581
 582
 583 // Callback for double click in list
 584 void FileDialog::Private::DoubleClickCB(FL_OBJECT *, long)
 585 {
 586         if (pCurrentDlg->HandleDoubleClick())
 587                 // Simulate click on OK button
 588                 pCurrentDlg->Force(false);
 589 }
 590
 591
 592 // Handle double click from list
 593 bool FileDialog::Private::HandleDoubleClick()
 594 {
 595         string pszTemp;
 596
 597         // set info line
 598         bool isDir = true;
 599         int const iSelect = fl_get_browser(pFileDlgForm->List);
 600         if (iSelect > iDepth)  {
 601                 pszTemp = direntries[iSelect - iDepth - 1].pszName;
 602                 SetInfoLine(direntries[iSelect - iDepth - 1].pszLsEntry);
 603                 if (!suffixIs(pszTemp, '/')) {
 604                         isDir = false;
 605                         fl_set_input(pFileDlgForm->Filename, pszTemp.c_str());
 606                 }
 607         } else if (iSelect != 0) {
 608                 SetInfoLine(string());
 609         } else
 610                 return true;
 611
 612         // executes action
 613         if (isDir) {
 614                 string Temp;
 615
 616                 // builds new directory name
 617                 if (iSelect > iDepth) {
 618                         // Directory deeper down
 619                         // First, get directory with trailing /
 620                         Temp = fl_get_input(pFileDlgForm->DirBox);
 621                         if (!suffixIs(Temp, '/'))
 622                                 Temp += '/';
 623                         Temp += pszTemp;
 624                 } else {
 625                         // Directory higher up
 626                         Temp.erase();
 627                         for (int i = 0; i < iSelect; ++i) {
 628                                 string piece = fl_get_browser_line(pFileDlgForm->List, i+1);
 629                                 // The '+2' is here to count the '@b' (JMarc)
 630                                 Temp += piece.substr(i + 2);
 631                         }
 632                 }
 633
 634                 // assigns it
 635                 SetDirectory(Temp);
 636                 Reread();
 637                 return false;
 638         }
 639         return true;
 640 }
 641
 642
 643 // Handle OK button call
 644 bool FileDialog::Private::HandleOK()
 645 {
 646         // mask was changed
 647         string pszTemp = fl_get_input(pFileDlgForm->PatBox);
 648         if (pszTemp != pszMask) {
 649                 SetMask(pszTemp);
 650                 Reread();
 651                 return false;
 652         }
 653
 654         // directory was changed
 655         pszTemp = fl_get_input(pFileDlgForm->DirBox);
 656         if (pszTemp!= pszDirectory) {
 657                 SetDirectory(pszTemp);
 658                 Reread();
 659                 return false;
 660         }
 661
 662         // Handle return from list
 663         int const select = fl_get_browser(pFileDlgForm->List);
 664         if (select > iDepth) {
 665                 string const temp = direntries[select - iDepth - 1].pszName;
 666                 if (!suffixIs(temp, '/')) {
 667                         // If user didn't type anything, use browser
 668                         string const name =
 669                                 fl_get_input(pFileDlgForm->Filename);
 670                         if (name.empty()) {
 671                                 fl_set_input(pFileDlgForm->Filename, temp.c_str());
 672                         }
 673                         return true;
 674                 }
 675         }
 676
 677         // Emulate a doubleclick
 678         return HandleDoubleClick();
 679 }
 680
 681
 682 // Handle Cancel CB from WM close
 683 int FileDialog::Private::CancelCB(FL_FORM *, void *)
 684 {
 685         // Simulate a click on the cancel button
 686         pCurrentDlg->Force(true);
 687         return FL_IGNORE;
 688 }
 689
 690
 691 // Simulates a click on OK/Cancel
 692 void FileDialog::Private::Force(bool cancel)
 693 {
 694         if (cancel) {
 695                 force_cancel = true;
 696                 fl_set_button(pFileDlgForm->Cancel, 1);
 697         } else {
 698                 force_ok = true;
 699                 fl_set_button(pFileDlgForm->Ready, 1);
 700         }
 701         // Start timer to break fl_do_forms loop soon
 702         fl_set_timer(pFileDlgForm->timer, 0.1);
 703 }
 704
 705
 706 // Select: launches dialog and returns selected file
 707 string const FileDialog::Private::Select(string const & title, string const & path,
 708                                 string const & mask, string const & suggested)
 709 {
 710         // handles new mask and path
 711         bool isOk = true;
 712         if (!mask.empty()) {
 713                 SetMask(mask);
 714                 isOk = false;
 715         }
 716         if (!path.empty()) {
 717                 SetDirectory(path);
 718                 isOk = false;
 719         }
 720         if (!isOk) Reread();
 721
 722         // highlight the suggested file in the browser, if it exists.
 723         int sel = 0;
 724         string const filename = OnlyFilename(suggested);
 725         if (!filename.empty()) {
 726                 for (int i = 0;
 727                      i < fl_get_browser_maxline(pFileDlgForm->List); ++i) {
 728                         string s =
 729                                 fl_get_browser_line(pFileDlgForm->List, i + 1);
 730                         s = strip(frontStrip(s));
 731                         if (s == filename) {
 732                                 sel = i + 1;
 733                                 break;
 734                         }
 735                 }
 736         }
 737
 738         if (sel != 0) fl_select_browser_line(pFileDlgForm->List, sel);
 739         int const top = max(sel - 5, 1);
 740         fl_set_browser_topline(pFileDlgForm->List, top);
 741
 742         // checks whether dialog can be started
 743         if (pCurrentDlg) return string();
 744         pCurrentDlg = this;
 745
 746         // runs dialog
 747         SetInfoLine(string());
 748         fl_set_input(pFileDlgForm->Filename, suggested.c_str());
 749         fl_set_button(pFileDlgForm->Cancel, 0);
 750         fl_set_button(pFileDlgForm->Ready, 0);
 751         fl_set_focus_object(pFileDlgForm->form, pFileDlgForm->Filename);
 752         fl_deactivate_all_forms();
 753         fl_show_form(pFileDlgForm->form,
 754                      FL_PLACE_MOUSE | FL_FREE_SIZE, 0,
 755                      title.c_str());
 756
 757         isOk = RunDialog();
 758
 759         fl_hide_form(pFileDlgForm->form);
 760         fl_activate_all_forms();
 761         pCurrentDlg = 0;
 762
 763         // Returns filename or string() if no valid selection was made
 764         if (!isOk || !fl_get_input(pFileDlgForm->Filename)[0]) return string();
 765
 766         pszFileName = fl_get_input(pFileDlgForm->Filename);
 767
 768         if (!AbsolutePath(pszFileName)) {
 769                 pszFileName = AddName(fl_get_input(pFileDlgForm->DirBox),
 770                                       pszFileName);
 771         }
 772         return pszFileName;
 773 }