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, moz@compsoc.man.ac.uk
   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 #include <boost/bind.hpp>
  33
  34 #ifdef HAVE_ERRNO_H
  35 #include <cerrno>
  36 #endif
  37
  38 #if HAVE_DIRENT_H
  39 # include <dirent.h>
  40 # define NAMLEN(dirent) strlen((dirent)->d_name)
  41 #else
  42 # define dirent direct
  43 # define NAMLEN(dirent) (dirent)->d_namlen
  44 # if HAVE_SYS_NDIR_H
  45 #  include <sys/ndir.h>
  46 # endif
  47 # if HAVE_SYS_DIR_H
  48 #  include <sys/dir.h>
  49 # endif
  50 # if HAVE_NDIR_H
  51 #  include <ndir.h>
  52 # endif
  53 #endif
  54
  55 #if TIME_WITH_SYS_TIME
  56 # include <sys/time.h>
  57 # include <ctime>
  58 #else
  59 # if HAVE_SYS_TIME_H
  60 #  include <sys/time.h>
  61 # else
  62 #  include <ctime>
  63 # endif
  64 #endif
  65
  66 // FIXME: should be autoconfiscated
  67 #ifdef BROKEN_HEADERS
  68 extern "C" int gettimeofday(struct timeval *, struct timezone *);
  69 #endif
  70
  71 #ifdef __GNUG__
  72 #pragma implementation
  73 #endif
  74
  75 #include "support/filetools.h"
  76 #include "FormFiledialog.h"
  77
  78 namespace {
  79
  80 // six months, in seconds
  81 long const SIX_MONTH_SEC = 6L * 30L * 24L * 60L * 60L;
  82 //static
  83 long const ONE_HOUR_SEC = 60L * 60L;
  84
  85 extern "C" {
  86
  87         static
  88         int C_LyXFileDlg_CancelCB(FL_FORM *fl, void *xev)
  89         {
  90                 return FileDialog::Private::CancelCB(fl, xev);
  91         }
  92
  93         static
  94         void C_LyXFileDlg_DoubleClickCB(FL_OBJECT * ob, long data)
  95         {
  96                 FileDialog::Private::DoubleClickCB(ob, data);
  97         }
  98
  99         static
 100         void C_LyXFileDlg_FileDlgCB(FL_OBJECT * ob, long data)
 101         {
 102                 FileDialog::Private::FileDlgCB(ob, data);
 103         }
 104
 105 }
 106
 107 } // namespace anon
 108
 109
 110 // *** User cache class implementation
 111 /// User cache class definition
 112 class UserCache {
 113 public:
 114         /// seeks user name from group ID
 115         string const & find(uid_t ID) const {
 116                 Users::const_iterator cit = users.find(ID);
 117                 if (cit == users.end()) {
 118                         add(ID);
 119                         return users[ID];
 120                 }
 121                 return cit->second;
 122         }
 123 private:
 124         ///
 125         void add(uid_t ID) const;
 126         ///
 127         typedef map<uid_t, string> Users;
 128         ///
 129         mutable Users users;
 130 };
 131
 132
 133 void UserCache::add(uid_t ID) const
 134 {
 135         string pszNewName;
 136         struct passwd * pEntry;
 137
 138         // gets user name
 139         if ((pEntry = getpwuid(ID)))
 140                 pszNewName = pEntry->pw_name;
 141         else {
 142                 pszNewName = tostr(ID);
 143         }
 144
 145         // adds new node
 146         users[ID] = pszNewName;
 147 }
 148
 149
 150 /// Group cache class definition
 151 class GroupCache {
 152 public:
 153         /// seeks group name from group ID
 154         string const & find(gid_t ID) const ;
 155 private:
 156         ///
 157         void add(gid_t ID) const;
 158         ///
 159         typedef map<gid_t, string> Groups;
 160         ///
 161         mutable Groups groups;
 162 };
 163
 164
 165 string const & GroupCache::find(gid_t ID) const
 166 {
 167         Groups::const_iterator cit = groups.find(ID);
 168         if (cit == groups.end()) {
 169                 add(ID);
 170                 return groups[ID];
 171         }
 172         return cit->second;
 173 }
 174
 175
 176 void GroupCache::add(gid_t ID) const
 177 {
 178         string pszNewName;
 179         struct group * pEntry;
 180
 181         // gets user name
 182         if ((pEntry = getgrgid(ID))) pszNewName = pEntry->gr_name;
 183         else {
 184                 pszNewName = tostr(ID);
 185         }
 186         // adds new node
 187         groups[ID] = pszNewName;
 188 }
 189
 190
 191 namespace {
 192
 193 // local instances
 194 UserCache lyxUserCache;
 195 GroupCache lyxGroupCache;
 196
 197 } // namespace anon
 198
 199
 200 // compares two LyXDirEntry objects content (used for sort)
 201 class comp_direntry {
 202 public:
 203         int operator()(DirEntry const & r1,
 204                        DirEntry const & r2) const ;
 205 };
 206         int comp_direntry::operator()(DirEntry const & r1,
 207                        DirEntry const & r2) const {
 208                 bool r1d = suffixIs(r1.pszName, '/');
 209                 bool r2d = suffixIs(r2.pszName, '/');
 210                 if (r1d && !r2d) return 1;
 211                 if (!r1d && r2d) return 0;
 212                 return r1.pszName < r2.pszName;
 213         }
 214
 215
 216 // *** FileDialog::Private class implementation
 217
 218 // static members
 219 FD_form_filedialog * FileDialog::Private::pFileDlgForm = 0;
 220 FileDialog::Private * FileDialog::Private::pCurrentDlg = 0;
 221
 222
 223 // Reread: updates dialog list to match class directory
 224 void FileDialog::Private::Reread()
 225 {
 226         // Opens directory
 227         DIR * pDirectory = ::opendir(pszDirectory.c_str());
 228         if (!pDirectory) {
 229                 Alert::err_alert(_("Warning! Couldn't open directory."),
 230                              pszDirectory);
 231                 pszDirectory = lyx::getcwd();
 232                 pDirectory = ::opendir(pszDirectory.c_str());
 233         }
 234
 235         // Clear the present namelist
 236         direntries.clear();
 237
 238         // Updates display
 239         fl_hide_object(pFileDlgForm->List);
 240         fl_clear_browser(pFileDlgForm->List);
 241         fl_set_input(pFileDlgForm->DirBox, pszDirectory.c_str());
 242
 243         // Splits complete directory name into directories and compute depth
 244         iDepth = 0;
 245         string line, Temp;
 246         char szMode[15];
 247         string File = pszDirectory;
 248         if (File != "/") {
 249                 File = split(File, Temp, '/');
 250         }
 251         while (!File.empty() || !Temp.empty()) {
 252                 string dline = "@b"+line + Temp + '/';
 253                 fl_add_browser_line(pFileDlgForm->List, dline.c_str());
 254                 File = split(File, Temp, '/');
 255                 line += ' ';
 256                 ++iDepth;
 257         }
 258
 259         // Parses all entries of the given subdirectory
 260         time_t curTime = time(0);
 261         rewinddir(pDirectory);
 262         struct dirent * pDirEntry;
 263         while ((pDirEntry = readdir(pDirectory))) {
 264                 bool isLink = false, isDir = false;
 265
 266                 // If the pattern doesn't start with a dot, skip hidden files
 267                 if (!pszMask.empty() && pszMask[0] != '.' &&
 268                     pDirEntry->d_name[0] == '.')
 269                         continue;
 270
 271                 // Gets filename
 272                 string fname = pDirEntry->d_name;
 273
 274                 // Under all circumstances, "." and ".." are not wanted
 275                 if (fname == "." || fname == "..")
 276                         continue;
 277
 278                 // gets file status
 279                 File = AddName(pszDirectory, fname);
 280
 281                 FileInfo fileInfo(File, true);
 282
 283                 // can this really happen?
 284                 if (!fileInfo.isOK())
 285                         continue;
 286
 287                 fileInfo.modeString(szMode);
 288                 unsigned int nlink = fileInfo.getNumberOfLinks();
 289                 string user =   lyxUserCache.find(fileInfo.getUid());
 290                 string group = lyxGroupCache.find(fileInfo.getGid());
 291
 292                 time_t modtime = fileInfo.getModificationTime();
 293                 string Time = ctime(&modtime);
 294
 295                 if (curTime > modtime + SIX_MONTH_SEC
 296                     || curTime < modtime + ONE_HOUR_SEC) {
 297                         // The file is fairly old or in the future. POSIX says
 298                         // the cutoff is 6 months old. Allow a 1 hour slop
 299                         // factor for what is considered "the future", to
 300                         // allow for NFS server/client clock disagreement.
 301                         // Show the year instead of the time of day.
 302                         Time.erase(10, 9);
 303                         Time.erase(15, string::npos);
 304                 } else {
 305                         Time.erase(16, string::npos);
 306                 }
 307
 308                 string Buffer = string(szMode) + ' ' +
 309                         tostr(nlink) + ' ' +
 310                         user + ' ' +
 311                         group + ' ' +
 312                         Time.substr(4, string::npos) + ' ';
 313
 314                 Buffer += pDirEntry->d_name;
 315                 Buffer += fileInfo.typeIndicator();
 316
 317                 if ((isLink = fileInfo.isLink())) {
 318                         string Link;
 319
 320                         if (LyXReadLink(File, Link)) {
 321                                 Buffer += " -> ";
 322                                 Buffer += Link;
 323
 324                                 // This gives the FileType of the file that
 325                                 // is really pointed too after resolving all
 326                                 // symlinks. This is not necessarily the same
 327                                 // as the type of Link (which could again be a
 328                                 // link). Is that intended?
 329                                 //                              JV 199902
 330                                 fileInfo.newFile(File);
 331                                 if (fileInfo.isOK())
 332                                         Buffer += fileInfo.typeIndicator();
 333                                 else
 334                                         continue;
 335                         }
 336                 }
 337
 338                 // filters files according to pattern and type
 339                 if (fileInfo.isRegular()
 340                     || fileInfo.isChar()
 341                     || fileInfo.isBlock()
 342                     || fileInfo.isFifo()) {
 343                         if (!regexMatch(fname, pszMask))
 344                                 continue;
 345                 } else if (!(isDir = fileInfo.isDir()))
 346                         continue;
 347
 348                 DirEntry tmp;
 349
 350                 // Note pszLsEntry is an string!
 351                 tmp.pszLsEntry = Buffer;
 352                 // creates used name
 353                 string temp = fname;
 354                 if (isDir) temp += '/';
 355
 356                 tmp.pszName = temp;
 357                 // creates displayed name
 358                 temp = pDirEntry->d_name;
 359                 if (isLink)
 360                         temp += '@';
 361                 else
 362                         temp += fileInfo.typeIndicator();
 363                 tmp.pszDisplayed = temp;
 364
 365                 direntries.push_back(tmp);
 366         }
 367
 368         closedir(pDirectory);
 369
 370         // Sort the names
 371         sort(direntries.begin(), direntries.end(), comp_direntry());
 372
 373         // Add them to directory box
 374         for (DirEntries::const_iterator cit = direntries.begin();
 375              cit != direntries.end(); ++cit) {
 376                 string const temp = line + cit->pszDisplayed;
 377                 fl_add_browser_line(pFileDlgForm->List, temp.c_str());
 378         }
 379         fl_set_browser_topline(pFileDlgForm->List, iDepth);
 380         fl_show_object(pFileDlgForm->List);
 381         iLastSel = -1;
 382 }
 383
 384
 385 // SetDirectory: sets dialog current directory
 386 void FileDialog::Private::SetDirectory(string const & Path)
 387 {
 388
 389         string tmp;
 390
 391         if (Path.empty())
 392                 tmp = lyx::getcwd();
 393         else
 394                 tmp = MakeAbsPath(ExpandPath(Path), pszDirectory);
 395
 396         // must check the directory exists
 397         DIR * pDirectory = ::opendir(tmp.c_str());
 398         if (!pDirectory) {
 399                 Alert::err_alert(_("Warning! Couldn't open directory."), tmp);
 400         } else {
 401                 ::closedir(pDirectory);
 402                 pszDirectory = tmp;
 403         }
 404 }
 405
 406
 407 // SetMask: sets dialog file mask
 408 void FileDialog::Private::SetMask(string const & NewMask)
 409 {
 410         pszMask = NewMask;
 411         fl_set_input(pFileDlgForm->PatBox, pszMask.c_str());
 412 }
 413
 414
 415 // SetInfoLine: sets dialog information line
 416 void FileDialog::Private::SetInfoLine(string const & Line)
 417 {
 418         pszInfoLine = Line;
 419         fl_set_object_label(pFileDlgForm->FileInfo, pszInfoLine.c_str());
 420 }
 421
 422
 423 FileDialog::Private::Private()
 424 {
 425         pszDirectory = MakeAbsPath(string("."));
 426         pszMask = '*';
 427
 428         // Creates form if necessary.
 429         if (!pFileDlgForm) {
 430                 pFileDlgForm = build_filedialog();
 431                 // Set callbacks. This means that we don't need a patch file
 432                 fl_set_object_callback(pFileDlgForm->DirBox,
 433                                        C_LyXFileDlg_FileDlgCB, 0);
 434                 fl_set_object_callback(pFileDlgForm->PatBox,
 435                                        C_LyXFileDlg_FileDlgCB, 1);
 436                 fl_set_object_callback(pFileDlgForm->List,
 437                                        C_LyXFileDlg_FileDlgCB, 2);
 438                 fl_set_object_callback(pFileDlgForm->Filename,
 439                                        C_LyXFileDlg_FileDlgCB, 3);
 440                 fl_set_object_callback(pFileDlgForm->Rescan,
 441                                        C_LyXFileDlg_FileDlgCB, 10);
 442                 fl_set_object_callback(pFileDlgForm->Home,
 443                                        C_LyXFileDlg_FileDlgCB, 11);
 444                 fl_set_object_callback(pFileDlgForm->User1,
 445                                        C_LyXFileDlg_FileDlgCB, 12);
 446                 fl_set_object_callback(pFileDlgForm->User2,
 447                                        C_LyXFileDlg_FileDlgCB, 13);
 448
 449                 // Make sure pressing the close box doesn't crash LyX. (RvdK)
 450                 fl_set_form_atclose(pFileDlgForm->form,
 451                                     C_LyXFileDlg_CancelCB, 0);
 452                 // Register doubleclick callback
 453                 fl_set_browser_dblclick_callback(pFileDlgForm->List,
 454                                                  C_LyXFileDlg_DoubleClickCB,
 455                                                  0);
 456         }
 457         fl_hide_object(pFileDlgForm->User1);
 458         fl_hide_object(pFileDlgForm->User2);
 459
 460         r_ = Dialogs::redrawGUI.connect(boost::bind(&FileDialog::Private::redraw, this));
 461 }
 462
 463
 464 FileDialog::Private::~Private()
 465 {
 466         r_.disconnect();
 467 }
 468
 469
 470 void FileDialog::Private::redraw()
 471 {
 472         if (pFileDlgForm->form && pFileDlgForm->form->visible)
 473                 fl_redraw_form(pFileDlgForm->form);
 474 }
 475
 476
 477 // SetButton: sets file selector user button action
 478 void FileDialog::Private::SetButton(int iIndex, string const & pszName,
 479                            string const & pszPath)
 480 {
 481         FL_OBJECT * pObject;
 482         string * pTemp;
 483
 484         if (iIndex == 0) {
 485                 pObject = pFileDlgForm->User1;
 486                 pTemp = &pszUserPath1;
 487         } else if (iIndex == 1) {
 488                 pObject = pFileDlgForm->User2;
 489                 pTemp = &pszUserPath2;
 490         } else return;
 491
 492         if (!pszName.empty()) {
 493                 fl_set_object_label(pObject, idex(pszName.c_str()));
 494                 fl_set_button_shortcut(pObject, scex(pszName.c_str()), 1);
 495                 fl_show_object(pObject);
 496                 *pTemp = pszPath;
 497         } else {
 498                 fl_hide_object(pObject);
 499                 pTemp->erase();
 500         }
 501 }
 502
 503
 504 // GetDirectory: gets last dialog directory
 505 string const FileDialog::Private::GetDirectory() const
 506 {
 507         if (!pszDirectory.empty())
 508                 return pszDirectory;
 509         else
 510                 return string(".");
 511 }
 512
 513 namespace {
 514         bool x_sync_kludge(bool ret)
 515         {
 516                 XSync(fl_get_display(), false);
 517                 return ret;
 518         }
 519 } // namespace anon
 520
 521 // RunDialog: handle dialog during file selection
 522 bool FileDialog::Private::RunDialog()
 523 {
 524         force_cancel = false;
 525         force_ok = false;
 526
 527         // event loop
 528         while (true) {
 529                 FL_OBJECT * pObject = fl_do_forms();
 530
 531                 if (pObject == pFileDlgForm->Ready) {
 532                         if (HandleOK())
 533                                 return x_sync_kludge(true);
 534
 535                 } else if (pObject == pFileDlgForm->Cancel
 536                            || force_cancel)
 537                         return x_sync_kludge(false);
 538
 539                 else if (force_ok)
 540                         return x_sync_kludge(true);
 541         }
 542 }
 543
 544
 545 // XForms objects callback (static)
 546 void FileDialog::Private::FileDlgCB(FL_OBJECT *, long lArgument)
 547 {
 548         if (!pCurrentDlg) return;
 549
 550         switch (lArgument) {
 551
 552         case 0: // get directory
 553                 pCurrentDlg->SetDirectory(fl_get_input(pFileDlgForm->DirBox));
 554                 pCurrentDlg->Reread();
 555                 break;
 556
 557         case 1: // get mask
 558                 pCurrentDlg->SetMask(fl_get_input(pFileDlgForm->PatBox));
 559                 pCurrentDlg->Reread();
 560                 break;
 561
 562         case 2: // list
 563                 pCurrentDlg->HandleListHit();
 564                 break;
 565
 566         case 10: // rescan
 567                 pCurrentDlg->SetDirectory(fl_get_input(pFileDlgForm->DirBox));
 568                 pCurrentDlg->SetMask(fl_get_input(pFileDlgForm->PatBox));
 569                 pCurrentDlg->Reread();
 570                 break;
 571
 572         case 11: // home
 573                 pCurrentDlg->SetDirectory(GetEnvPath("HOME"));
 574                 pCurrentDlg->SetMask(fl_get_input(pFileDlgForm->PatBox));
 575                 pCurrentDlg->Reread();
 576                 break;
 577
 578         case 12: // user button 1
 579                 pCurrentDlg->SetDirectory(pCurrentDlg->pszUserPath1);
 580                 pCurrentDlg->SetMask(fl_get_input(pFileDlgForm
 581                                                   ->PatBox));
 582                 pCurrentDlg->Reread();
 583                 break;
 584
 585         case 13: // user button 2
 586                 pCurrentDlg->SetDirectory(pCurrentDlg->pszUserPath2);
 587                 pCurrentDlg->SetMask(fl_get_input(pFileDlgForm
 588                                                   ->PatBox));
 589                 pCurrentDlg->Reread();
 590                 break;
 591
 592         }
 593 }
 594
 595
 596 // Handle callback from list
 597 void FileDialog::Private::HandleListHit()
 598 {
 599         // set info line
 600         int const iSelect = fl_get_browser(pFileDlgForm->List);
 601         if (iSelect > iDepth)  {
 602                 SetInfoLine(direntries[iSelect - iDepth - 1].pszLsEntry);
 603         } else {
 604                 SetInfoLine(string());
 605         }
 606 }
 607
 608
 609 // Callback for double click in list
 610 void FileDialog::Private::DoubleClickCB(FL_OBJECT *, long)
 611 {
 612         if (pCurrentDlg->HandleDoubleClick())
 613                 // Simulate click on OK button
 614                 pCurrentDlg->Force(false);
 615 }
 616
 617
 618 // Handle double click from list
 619 bool FileDialog::Private::HandleDoubleClick()
 620 {
 621         string pszTemp;
 622
 623         // set info line
 624         bool isDir = true;
 625         int const iSelect = fl_get_browser(pFileDlgForm->List);
 626         if (iSelect > iDepth)  {
 627                 pszTemp = direntries[iSelect - iDepth - 1].pszName;
 628                 SetInfoLine(direntries[iSelect - iDepth - 1].pszLsEntry);
 629                 if (!suffixIs(pszTemp, '/')) {
 630                         isDir = false;
 631                         fl_set_input(pFileDlgForm->Filename, pszTemp.c_str());
 632                 }
 633         } else if (iSelect != 0) {
 634                 SetInfoLine(string());
 635         } else
 636                 return true;
 637
 638         // executes action
 639         if (isDir) {
 640                 string Temp;
 641
 642                 // builds new directory name
 643                 if (iSelect > iDepth) {
 644                         // Directory deeper down
 645                         // First, get directory with trailing /
 646                         Temp = fl_get_input(pFileDlgForm->DirBox);
 647                         if (!suffixIs(Temp, '/'))
 648                                 Temp += '/';
 649                         Temp += pszTemp;
 650                 } else {
 651                         // Directory higher up
 652                         Temp.erase();
 653                         for (int i = 0; i < iSelect; ++i) {
 654                                 string piece = fl_get_browser_line(pFileDlgForm->List, i+1);
 655                                 // The '+2' is here to count the '@b' (JMarc)
 656                                 Temp += piece.substr(i + 2);
 657                         }
 658                 }
 659
 660                 // assigns it
 661                 SetDirectory(Temp);
 662                 Reread();
 663                 return false;
 664         }
 665         return true;
 666 }
 667
 668
 669 // Handle OK button call
 670 bool FileDialog::Private::HandleOK()
 671 {
 672         // mask was changed
 673         string pszTemp = fl_get_input(pFileDlgForm->PatBox);
 674         if (pszTemp != pszMask) {
 675                 SetMask(pszTemp);
 676                 Reread();
 677                 return false;
 678         }
 679
 680         // directory was changed
 681         pszTemp = fl_get_input(pFileDlgForm->DirBox);
 682         if (pszTemp!= pszDirectory) {
 683                 SetDirectory(pszTemp);
 684                 Reread();
 685                 return false;
 686         }
 687
 688         // Handle return from list
 689         int const select = fl_get_browser(pFileDlgForm->List);
 690         if (select > iDepth) {
 691                 string const temp = direntries[select - iDepth - 1].pszName;
 692                 if (!suffixIs(temp, '/')) {
 693                         // If user didn't type anything, use browser
 694                         string const name =
 695                                 fl_get_input(pFileDlgForm->Filename);
 696                         if (name.empty()) {
 697                                 fl_set_input(pFileDlgForm->Filename, temp.c_str());
 698                         }
 699                         return true;
 700                 }
 701         }
 702
 703         // Emulate a doubleclick
 704         return HandleDoubleClick();
 705 }
 706
 707
 708 // Handle Cancel CB from WM close
 709 int FileDialog::Private::CancelCB(FL_FORM *, void *)
 710 {
 711         // Simulate a click on the cancel button
 712         pCurrentDlg->Force(true);
 713         return FL_IGNORE;
 714 }
 715
 716
 717 // Simulates a click on OK/Cancel
 718 void FileDialog::Private::Force(bool cancel)
 719 {
 720         if (cancel) {
 721                 force_cancel = true;
 722                 fl_set_button(pFileDlgForm->Cancel, 1);
 723         } else {
 724                 force_ok = true;
 725                 fl_set_button(pFileDlgForm->Ready, 1);
 726         }
 727         // Start timer to break fl_do_forms loop soon
 728         fl_set_timer(pFileDlgForm->timer, 0.1);
 729 }
 730
 731
 732 // Select: launches dialog and returns selected file
 733 string const FileDialog::Private::Select(string const & title,
 734                                          string const & path,
 735                                          string const & mask,
 736                                          string const & suggested)
 737 {
 738         // handles new mask and path
 739         bool isOk = true;
 740         if (!mask.empty()) {
 741                 SetMask(mask);
 742                 isOk = false;
 743         }
 744         if (!path.empty()) {
 745                 SetDirectory(path);
 746                 isOk = false;
 747         }
 748         if (!isOk) Reread();
 749
 750         // highlight the suggested file in the browser, if it exists.
 751         int sel = 0;
 752         string const filename = OnlyFilename(suggested);
 753         if (!filename.empty()) {
 754                 for (int i = 0;
 755                      i < fl_get_browser_maxline(pFileDlgForm->List); ++i) {
 756                         string s =
 757                                 fl_get_browser_line(pFileDlgForm->List, i + 1);
 758                         s = strip(frontStrip(s));
 759                         if (s == filename) {
 760                                 sel = i + 1;
 761                                 break;
 762                         }
 763                 }
 764         }
 765
 766         if (sel != 0) fl_select_browser_line(pFileDlgForm->List, sel);
 767         int const top = max(sel - 5, 1);
 768         fl_set_browser_topline(pFileDlgForm->List, top);
 769
 770         // checks whether dialog can be started
 771         if (pCurrentDlg) return string();
 772         pCurrentDlg = this;
 773
 774         // runs dialog
 775         SetInfoLine(string());
 776         fl_set_input(pFileDlgForm->Filename, suggested.c_str());
 777         fl_set_button(pFileDlgForm->Cancel, 0);
 778         fl_set_button(pFileDlgForm->Ready, 0);
 779         fl_set_focus_object(pFileDlgForm->form, pFileDlgForm->Filename);
 780         fl_deactivate_all_forms();
 781         fl_show_form(pFileDlgForm->form,
 782                      FL_PLACE_MOUSE | FL_FREE_SIZE, 0,
 783                      title.c_str());
 784
 785         isOk = RunDialog();
 786
 787         fl_hide_form(pFileDlgForm->form);
 788         fl_activate_all_forms();
 789         pCurrentDlg = 0;
 790
 791         // Returns filename or string() if no valid selection was made
 792         if (!isOk || !fl_get_input(pFileDlgForm->Filename)[0]) return string();
 793
 794         pszFileName = fl_get_input(pFileDlgForm->Filename);
 795
 796         if (!AbsolutePath(pszFileName)) {
 797                 pszFileName = AddName(fl_get_input(pFileDlgForm->DirBox),
 798                                       pszFileName);
 799         }
 800         return pszFileName;
 801 }