src/frontends/xforms/FormFiledialog.C

   1 /**
   2  * \file FormFiledialog.C
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author unknown
   7  * \author John Levon
   8  *
   9  * Full author contact details are available in file CREDITS
  10  */
  11
  12 #include <config.h>
  13
  14 #include <unistd.h>
  15 #include <cstdlib>
  16 #include <pwd.h>
  17 #include <grp.h>
  18 #include <map>
  19 #include <algorithm>
  20
  21 using std::map;
  22 using std::max;
  23 using std::sort;
  24
  25 #include "frontends/Alert.h"
  26 #include "support/FileInfo.h"
  27 #include "support/lyxlib.h"
  28 #include "support/lstrings.h"
  29 #include "gettext.h"
  30 #include "frontends/Dialogs.h"
  31 #include "forms_gettext.h"
  32
  33 #include <boost/bind.hpp>
  34
  35 //#ifdef HAVE_ERRNO_H
  36 //#include <cerrno>
  37 //#endif
  38
  39 #if HAVE_DIRENT_H
  40 # include <dirent.h>
  41 #else
  42 # define dirent direct
  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 #ifdef __GNUG__
  55 #pragma implementation
  56 #endif
  57
  58 #include "support/filetools.h"
  59 #include "FormFiledialog.h"
  60 #include "forms/form_filedialog.h"
  61 #include FORMS_H_LOCATION
  62
  63 namespace {
  64
  65 // six months, in seconds
  66 long const SIX_MONTH_SEC = 6L * 30L * 24L * 60L * 60L;
  67 //static
  68 long const ONE_HOUR_SEC = 60L * 60L;
  69
  70 extern "C" {
  71
  72         static
  73         int C_LyXFileDlg_CancelCB(FL_FORM *fl, void *xev)
  74         {
  75                 return FileDialog::Private::CancelCB(fl, xev);
  76         }
  77
  78         static
  79         void C_LyXFileDlg_DoubleClickCB(FL_OBJECT * ob, long data)
  80         {
  81                 FileDialog::Private::DoubleClickCB(ob, data);
  82         }
  83
  84         static
  85         void C_LyXFileDlg_FileDlgCB(FL_OBJECT * ob, long data)
  86         {
  87                 FileDialog::Private::FileDlgCB(ob, data);
  88         }
  89
  90 }
  91
  92 // *** User cache class implementation
  93 /// User cache class definition
  94 class UserCache {
  95 public:
  96         /// seeks user name from group ID
  97         string const & find(uid_t ID) const {
  98                 Users::const_iterator cit = users.find(ID);
  99                 if (cit == users.end()) {
 100                         add(ID);
 101                         return users[ID];
 102                 }
 103                 return cit->second;
 104         }
 105 private:
 106         ///
 107         void add(uid_t ID) const;
 108         ///
 109         typedef map<uid_t, string> Users;
 110         ///
 111         mutable Users users;
 112 };
 113
 114
 115 void UserCache::add(uid_t ID) const
 116 {
 117         struct passwd const * entry = getpwuid(ID);
 118         users[ID] = entry ? entry->pw_name : tostr(ID);
 119 }
 120
 121
 122 /// Group cache class definition
 123 class GroupCache {
 124 public:
 125         /// seeks group name from group ID
 126         string const & find(gid_t ID) const ;
 127 private:
 128         ///
 129         void add(gid_t ID) const;
 130         ///
 131         typedef map<gid_t, string> Groups;
 132         ///
 133         mutable Groups groups;
 134 };
 135
 136
 137 string const & GroupCache::find(gid_t ID) const
 138 {
 139         Groups::const_iterator cit = groups.find(ID);
 140         if (cit == groups.end()) {
 141                 add(ID);
 142                 return groups[ID];
 143         }
 144         return cit->second;
 145 }
 146
 147
 148 void GroupCache::add(gid_t ID) const
 149 {
 150         struct group const * entry = getgrgid(ID);
 151         groups[ID] = entry ? entry->gr_name : tostr(ID);
 152 }
 153
 154 // local instances
 155 UserCache lyxUserCache;
 156 GroupCache lyxGroupCache;
 157
 158 // compares two LyXDirEntry objects content (used for sort)
 159 class comp_direntry {
 160 public:
 161         bool operator()(DirEntry const & r1, DirEntry const & r2) const
 162         {
 163                 bool const r1d = suffixIs(r1.name_, '/');
 164                 bool const r2d = suffixIs(r2.name_, '/');
 165                 if (r1d && !r2d)
 166                         return true;
 167                 if (!r1d && r2d)
 168                         return false;
 169                 return r1.name_ < r2.name_;
 170         }
 171 };
 172
 173
 174 } // namespace anon
 175
 176
 177
 178 // *** FileDialog::Private class implementation
 179
 180 // static members
 181 FD_filedialog * FileDialog::Private::file_dlg_form_ = 0;
 182 FileDialog::Private * FileDialog::Private::current_dlg_ = 0;
 183 int FileDialog::Private::minw_ = 0;
 184 int FileDialog::Private::minh_ = 0;
 185
 186
 187 // Reread: updates dialog list to match class directory
 188 void FileDialog::Private::Reread()
 189 {
 190         // Opens directory
 191         DIR * dir = ::opendir(directory_.c_str());
 192         if (!dir) {
 193                 Alert::err_alert(_("Warning! Couldn't open directory."),
 194                         directory_);
 195                 directory_ = lyx::getcwd();
 196                 dir = ::opendir(directory_.c_str());
 197         }
 198
 199         // Clear the present namelist
 200         dir_entries_.clear();
 201
 202         // Updates display
 203         fl_hide_object(file_dlg_form_->List);
 204         fl_clear_browser(file_dlg_form_->List);
 205         fl_set_input(file_dlg_form_->DirBox, directory_.c_str());
 206
 207         // Splits complete directory name into directories and compute depth
 208         depth_ = 0;
 209         string line, Temp;
 210         string mode;
 211         string File = directory_;
 212         if (File != "/") {
 213                 File = split(File, Temp, '/');
 214         }
 215         while (!File.empty() || !Temp.empty()) {
 216                 string dline = "@b" + line + Temp + '/';
 217                 fl_add_browser_line(file_dlg_form_->List, dline.c_str());
 218                 File = split(File, Temp, '/');
 219                 line += ' ';
 220                 ++depth_;
 221         }
 222
 223         // Parses all entries of the given subdirectory
 224         time_t curTime = time(0);
 225         rewinddir(dir);
 226         while (dirent * entry = readdir(dir)) {
 227                 bool isLink = false, isDir = false;
 228
 229                 // If the pattern doesn't start with a dot, skip hidden files
 230                 if (!mask_.empty() && mask_[0] != '.' &&
 231                     entry->d_name[0] == '.')
 232                         continue;
 233
 234                 // Gets filename
 235                 string fname = entry->d_name;
 236
 237                 // Under all circumstances, "." and ".." are not wanted
 238                 if (fname == "." || fname == "..")
 239                         continue;
 240
 241                 // gets file status
 242                 File = AddName(directory_, fname);
 243
 244                 FileInfo fileInfo(File, true);
 245
 246                 // can this really happen?
 247                 if (!fileInfo.isOK())
 248                         continue;
 249
 250                 mode = fileInfo.modeString();
 251                 unsigned int const nlink = fileInfo.getNumberOfLinks();
 252                 string const user  = lyxUserCache.find(fileInfo.getUid());
 253                 string const group = lyxGroupCache.find(fileInfo.getGid());
 254
 255                 time_t modtime = fileInfo.getModificationTime();
 256                 string Time = ctime(&modtime);
 257
 258                 if (curTime > modtime + SIX_MONTH_SEC
 259                     || curTime < modtime + ONE_HOUR_SEC) {
 260                         // The file is fairly old or in the future. POSIX says
 261                         // the cutoff is 6 months old. Allow a 1 hour slop
 262                         // factor for what is considered "the future", to
 263                         // allow for NFS server/client clock disagreement.
 264                         // Show the year instead of the time of day.
 265                         Time.erase(10, 9);
 266                         Time.erase(15, string::npos);
 267                 } else {
 268                         Time.erase(16, string::npos);
 269                 }
 270
 271                 string buffer = mode + ' ' +
 272                         tostr(nlink) + ' ' +
 273                         user + ' ' +
 274                         group + ' ' +
 275                         Time.substr(4, string::npos) + ' ';
 276
 277                 buffer += entry->d_name;
 278                 buffer += fileInfo.typeIndicator();
 279
 280                 isLink = fileInfo.isLink();
 281                 if (isLink) {
 282                         string Link;
 283
 284                         if (LyXReadLink(File, Link)) {
 285                                 buffer += " -> ";
 286                                 buffer += Link;
 287
 288                                 // This gives the FileType of the file that
 289                                 // is really pointed too after resolving all
 290                                 // symlinks. This is not necessarily the same
 291                                 // as the type of Link (which could again be a
 292                                 // link). Is that intended?
 293                                 //                              JV 199902
 294                                 fileInfo.newFile(File);
 295                                 if (fileInfo.isOK())
 296                                         buffer += fileInfo.typeIndicator();
 297                                 else
 298                                         continue;
 299                         }
 300                 }
 301
 302                 // filters files according to pattern and type
 303                 if (fileInfo.isRegular()
 304                     || fileInfo.isChar()
 305                     || fileInfo.isBlock()
 306                     || fileInfo.isFifo()) {
 307                         if (!regexMatch(fname, mask_))
 308                                 continue;
 309                 } else if (!(isDir = fileInfo.isDir()))
 310                         continue;
 311
 312                 DirEntry tmp;
 313
 314                 // Note ls_entry_ is an string!
 315                 tmp.ls_entry_ = buffer;
 316                 // creates used name
 317                 string temp = fname;
 318                 if (isDir)
 319                         temp += '/';
 320
 321                 tmp.name_ = temp;
 322                 // creates displayed name
 323                 temp = entry->d_name;
 324                 if (isLink)
 325                         temp += '@';
 326                 else
 327                         temp += fileInfo.typeIndicator();
 328                 tmp.displayed_ = temp;
 329
 330                 dir_entries_.push_back(tmp);
 331         }
 332
 333         closedir(dir);
 334
 335         // Sort the names
 336         sort(dir_entries_.begin(), dir_entries_.end(), comp_direntry());
 337
 338         // Add them to directory box
 339         for (DirEntries::const_iterator cit = dir_entries_.begin();
 340              cit != dir_entries_.end(); ++cit) {
 341                 string const temp = line + cit->displayed_;
 342                 fl_add_browser_line(file_dlg_form_->List, temp.c_str());
 343         }
 344         fl_set_browser_topline(file_dlg_form_->List, depth_);
 345         fl_show_object(file_dlg_form_->List);
 346         last_sel_ = -1;
 347 }
 348
 349
 350 // SetDirectory: sets dialog current directory
 351 void FileDialog::Private::SetDirectory(string const & path)
 352 {
 353         string tmp;
 354         if (path.empty())
 355                 tmp = lyx::getcwd();
 356         else
 357                 tmp = MakeAbsPath(ExpandPath(path), directory_);
 358
 359         // must check the directory exists
 360         DIR * dir = ::opendir(tmp.c_str());
 361         if (!dir) {
 362                 Alert::err_alert(_("Warning! Couldn't open directory."), tmp);
 363         } else {
 364                 ::closedir(dir);
 365                 directory_ = tmp;
 366         }
 367 }
 368
 369
 370 // SetMask: sets dialog file mask
 371 void FileDialog::Private::SetMask(string const & newmask)
 372 {
 373         mask_ = newmask;
 374         fl_set_input(file_dlg_form_->PatBox, mask_.c_str());
 375 }
 376
 377
 378 // SetInfoLine: sets dialog information line
 379 void FileDialog::Private::SetInfoLine(string const & line)
 380 {
 381         info_line_ = line;
 382         fl_set_object_label(file_dlg_form_->FileInfo, info_line_.c_str());
 383 }
 384
 385
 386 FileDialog::Private::Private(Dialogs & dia)
 387 {
 388         directory_ = MakeAbsPath(string("."));
 389         mask_ = '*';
 390
 391         // Creates form if necessary.
 392         if (!file_dlg_form_) {
 393                 file_dlg_form_ = build_filedialog(this);
 394                 minw_ = file_dlg_form_->form->w;
 395                 minh_ = file_dlg_form_->form->h;
 396                 // Set callbacks. This means that we don't need a patch file
 397                 fl_set_object_callback(file_dlg_form_->DirBox,
 398                                        C_LyXFileDlg_FileDlgCB, 0);
 399                 fl_set_object_callback(file_dlg_form_->PatBox,
 400                                        C_LyXFileDlg_FileDlgCB, 1);
 401                 fl_set_object_callback(file_dlg_form_->List,
 402                                        C_LyXFileDlg_FileDlgCB, 2);
 403                 fl_set_object_callback(file_dlg_form_->Filename,
 404                                        C_LyXFileDlg_FileDlgCB, 3);
 405                 fl_set_object_callback(file_dlg_form_->Rescan,
 406                                        C_LyXFileDlg_FileDlgCB, 10);
 407                 fl_set_object_callback(file_dlg_form_->Home,
 408                                        C_LyXFileDlg_FileDlgCB, 11);
 409                 fl_set_object_callback(file_dlg_form_->User1,
 410                                        C_LyXFileDlg_FileDlgCB, 12);
 411                 fl_set_object_callback(file_dlg_form_->User2,
 412                                        C_LyXFileDlg_FileDlgCB, 13);
 413
 414                 // Make sure pressing the close box doesn't crash LyX. (RvdK)
 415                 fl_set_form_atclose(file_dlg_form_->form,
 416                                     C_LyXFileDlg_CancelCB, 0);
 417                 // Register doubleclick callback
 418                 fl_set_browser_dblclick_callback(file_dlg_form_->List,
 419                                                  C_LyXFileDlg_DoubleClickCB,
 420                                                  0);
 421         }
 422         fl_hide_object(file_dlg_form_->User1);
 423         fl_hide_object(file_dlg_form_->User2);
 424
 425         r_ = dia.redrawGUI().connect(boost::bind(&FileDialog::Private::redraw, this));
 426 }
 427
 428
 429 FileDialog::Private::~Private()
 430 {
 431         r_.disconnect();
 432 }
 433
 434
 435 void FileDialog::Private::redraw()
 436 {
 437         if (file_dlg_form_->form && file_dlg_form_->form->visible)
 438                 fl_redraw_form(file_dlg_form_->form);
 439 }
 440
 441
 442 // SetButton: sets file selector user button action
 443 void FileDialog::Private::SetButton(int index, string const & name,
 444                            string const & path)
 445 {
 446         FL_OBJECT * ob;
 447         string * tmp;
 448
 449         if (index == 0) {
 450                 ob = file_dlg_form_->User1;
 451                 tmp = &user_path1_;
 452         } else if (index == 1) {
 453                 ob = file_dlg_form_->User2;
 454                 tmp = &user_path2_;
 455         } else {
 456                 return;
 457         }
 458
 459         if (!name.empty()) {
 460                 fl_set_object_label(ob, idex(name).c_str());
 461                 fl_set_button_shortcut(ob, scex(name).c_str(), 1);
 462                 fl_show_object(ob);
 463                 *tmp = path;
 464         } else {
 465                 fl_hide_object(ob);
 466                 tmp->erase();
 467         }
 468 }
 469
 470
 471 // GetDirectory: gets last dialog directory
 472 string const FileDialog::Private::GetDirectory() const
 473 {
 474         if (!directory_.empty())
 475                 return directory_;
 476         else
 477                 return string(".");
 478 }
 479
 480 namespace {
 481         bool x_sync_kludge(bool ret)
 482         {
 483                 XSync(fl_get_display(), false);
 484                 return ret;
 485         }
 486 } // namespace anon
 487
 488 // RunDialog: handle dialog during file selection
 489 bool FileDialog::Private::RunDialog()
 490 {
 491         force_cancel_ = false;
 492         force_ok_ = false;
 493
 494         // event loop
 495         while (true) {
 496                 FL_OBJECT * ob = fl_do_forms();
 497
 498                 if (ob == file_dlg_form_->Ready) {
 499                         if (HandleOK())
 500                                 return x_sync_kludge(true);
 501
 502                 } else if (ob == file_dlg_form_->Cancel || force_cancel_)
 503                         return x_sync_kludge(false);
 504
 505                 else if (force_ok_)
 506                         return x_sync_kludge(true);
 507         }
 508 }
 509
 510
 511 // XForms objects callback (static)
 512 void FileDialog::Private::FileDlgCB(FL_OBJECT *, long arg)
 513 {
 514         if (!current_dlg_)
 515                 return;
 516
 517         switch (arg) {
 518
 519         case 0: // get directory
 520                 current_dlg_->SetDirectory(fl_get_input(file_dlg_form_->DirBox));
 521                 current_dlg_->Reread();
 522                 break;
 523
 524         case 1: // get mask
 525                 current_dlg_->SetMask(fl_get_input(file_dlg_form_->PatBox));
 526                 current_dlg_->Reread();
 527                 break;
 528
 529         case 2: // list
 530                 current_dlg_->HandleListHit();
 531                 break;
 532
 533         case 10: // rescan
 534                 current_dlg_->SetDirectory(fl_get_input(file_dlg_form_->DirBox));
 535                 current_dlg_->SetMask(fl_get_input(file_dlg_form_->PatBox));
 536                 current_dlg_->Reread();
 537                 break;
 538
 539         case 11: // home
 540                 current_dlg_->SetDirectory(GetEnvPath("HOME"));
 541                 current_dlg_->SetMask(fl_get_input(file_dlg_form_->PatBox));
 542                 current_dlg_->Reread();
 543                 break;
 544
 545         case 12: // user button 1
 546                 current_dlg_->SetDirectory(current_dlg_->user_path1_);
 547                 current_dlg_->SetMask(fl_get_input(file_dlg_form_->PatBox));
 548                 current_dlg_->Reread();
 549                 break;
 550
 551         case 13: // user button 2
 552                 current_dlg_->SetDirectory(current_dlg_->user_path2_);
 553                 current_dlg_->SetMask(fl_get_input(file_dlg_form_->PatBox));
 554                 current_dlg_->Reread();
 555                 break;
 556
 557         }
 558 }
 559
 560
 561 // Handle callback from list
 562 void FileDialog::Private::HandleListHit()
 563 {
 564         // set info line
 565         int const select_ = fl_get_browser(file_dlg_form_->List);
 566         if (select_ > depth_)
 567                 SetInfoLine(dir_entries_[select_ - depth_ - 1].ls_entry_);
 568         else
 569                 SetInfoLine(string());
 570 }
 571
 572
 573 // Callback for double click in list
 574 void FileDialog::Private::DoubleClickCB(FL_OBJECT *, long)
 575 {
 576         // Simulate click on OK button
 577         if (current_dlg_->HandleDoubleClick())
 578                 current_dlg_->Force(false);
 579 }
 580
 581
 582 // Handle double click from list
 583 bool FileDialog::Private::HandleDoubleClick()
 584 {
 585         string tmp;
 586
 587         // set info line
 588         bool isDir = true;
 589         int const select_ = fl_get_browser(file_dlg_form_->List);
 590         if (select_ > depth_) {
 591                 tmp = dir_entries_[select_ - depth_ - 1].name_;
 592                 SetInfoLine(dir_entries_[select_ - depth_ - 1].ls_entry_);
 593                 if (!suffixIs(tmp, '/')) {
 594                         isDir = false;
 595                         fl_set_input(file_dlg_form_->Filename, tmp.c_str());
 596                 }
 597         } else if (select_ != 0) {
 598                 SetInfoLine(string());
 599         } else
 600                 return true;
 601
 602         // executes action
 603         if (isDir) {
 604                 string Temp;
 605
 606                 // builds new directory name
 607                 if (select_ > depth_) {
 608                         // Directory deeper down
 609                         // First, get directory with trailing /
 610                         Temp = fl_get_input(file_dlg_form_->DirBox);
 611                         if (!suffixIs(Temp, '/'))
 612                                 Temp += '/';
 613                         Temp += tmp;
 614                 } else {
 615                         // Directory higher up
 616                         Temp.erase();
 617                         for (int i = 0; i < select_; ++i) {
 618                                 string piece = fl_get_browser_line(file_dlg_form_->List, i+1);
 619                                 // The '+2' is here to count the '@b' (JMarc)
 620                                 Temp += piece.substr(i + 2);
 621                         }
 622                 }
 623
 624                 // assigns it
 625                 SetDirectory(Temp);
 626                 Reread();
 627                 return false;
 628         }
 629         return true;
 630 }
 631
 632
 633 // Handle OK button call
 634 bool FileDialog::Private::HandleOK()
 635 {
 636         // mask was changed
 637         string tmp = fl_get_input(file_dlg_form_->PatBox);
 638         if (tmp != mask_) {
 639                 SetMask(tmp);
 640                 Reread();
 641                 return false;
 642         }
 643
 644         // directory was changed
 645         tmp = fl_get_input(file_dlg_form_->DirBox);
 646         if (tmp != directory_) {
 647                 SetDirectory(tmp);
 648                 Reread();
 649                 return false;
 650         }
 651
 652         // Handle return from list
 653         int const select = fl_get_browser(file_dlg_form_->List);
 654         if (select > depth_) {
 655                 string const temp = dir_entries_[select - depth_ - 1].name_;
 656                 if (!suffixIs(temp, '/')) {
 657                         // If user didn't type anything, use browser
 658                         string const name = fl_get_input(file_dlg_form_->Filename);
 659                         if (name.empty())
 660                                 fl_set_input(file_dlg_form_->Filename, temp.c_str());
 661                         return true;
 662                 }
 663         }
 664
 665         // Emulate a doubleclick
 666         return HandleDoubleClick();
 667 }
 668
 669
 670 // Handle Cancel CB from WM close
 671 int FileDialog::Private::CancelCB(FL_FORM *, void *)
 672 {
 673         // Simulate a click on the cancel button
 674         current_dlg_->Force(true);
 675         return FL_IGNORE;
 676 }
 677
 678
 679 // Simulates a click on OK/Cancel
 680 void FileDialog::Private::Force(bool cancel)
 681 {
 682         if (cancel) {
 683                 force_cancel_ = true;
 684                 fl_set_button(file_dlg_form_->Cancel, 1);
 685         } else {
 686                 force_ok_ = true;
 687                 fl_set_button(file_dlg_form_->Ready, 1);
 688         }
 689         // Start timer to break fl_do_forms loop soon
 690         fl_set_timer(file_dlg_form_->timer, 0.1);
 691 }
 692
 693
 694 // Select: launches dialog and returns selected file
 695 string const FileDialog::Private::Select(string const & title,
 696                                          string const & path,
 697                                          string const & mask,
 698                                          string const & suggested)
 699 {
 700         // handles new mask and path
 701         bool isOk = true;
 702         if (!mask.empty()) {
 703                 SetMask(mask);
 704                 isOk = false;
 705         }
 706         if (!path.empty()) {
 707                 SetDirectory(path);
 708                 isOk = false;
 709         }
 710         if (!isOk)
 711                 Reread();
 712
 713         // highlight the suggested file in the browser, if it exists.
 714         int sel = 0;
 715         string const filename = OnlyFilename(suggested);
 716         if (!filename.empty()) {
 717                 for (int i = 0; i < fl_get_browser_maxline(file_dlg_form_->List); ++i) {
 718                         string s = fl_get_browser_line(file_dlg_form_->List, i + 1);
 719                         s = trim(s);
 720                         if (s == filename) {
 721                                 sel = i + 1;
 722                                 break;
 723                         }
 724                 }
 725         }
 726
 727         if (sel != 0)
 728                 fl_select_browser_line(file_dlg_form_->List, sel);
 729         int const top = max(sel - 5, 1);
 730         fl_set_browser_topline(file_dlg_form_->List, top);
 731
 732         // checks whether dialog can be started
 733         if (current_dlg_)
 734                 return string();
 735         current_dlg_ = this;
 736
 737         // runs dialog
 738         SetInfoLine(string());
 739         fl_set_input(file_dlg_form_->Filename, suggested.c_str());
 740         fl_set_button(file_dlg_form_->Cancel, 0);
 741         fl_set_button(file_dlg_form_->Ready, 0);
 742         fl_set_focus_object(file_dlg_form_->form, file_dlg_form_->Filename);
 743         fl_deactivate_all_forms();
 744         // Prevent xforms crashing if the dialog gets too small by preventing
 745         // it from being shrunk beyond a minimum size.
 746         // calls to fl_set_form_minsize/maxsize apply only to the next
 747         // fl_show_form(), so this comes first.
 748         fl_set_form_minsize(file_dlg_form_->form, minw_, minh_);
 749
 750         fl_show_form(file_dlg_form_->form,
 751                      FL_PLACE_MOUSE | FL_FREE_SIZE, 0,
 752                      title.c_str());
 753
 754         isOk = RunDialog();
 755
 756         fl_hide_form(file_dlg_form_->form);
 757         fl_activate_all_forms();
 758         current_dlg_ = 0;
 759
 760         // Returns filename or string() if no valid selection was made
 761         if (!isOk || !fl_get_input(file_dlg_form_->Filename)[0])
 762                 return string();
 763
 764         file_name_ = fl_get_input(file_dlg_form_->Filename);
 765
 766         if (!AbsolutePath(file_name_))
 767                 file_name_ = AddName(fl_get_input(file_dlg_form_->DirBox), file_name_);
 768         return file_name_;
 769 }