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 "FormFiledialog.h"
  15 #include "forms/form_filedialog.h"
  16
  17 #include "forms_gettext.h"
  18 #include "xforms_helpers.h"
  19
  20 #include "frontends/Dialogs.h"
  21
  22 #include "support/FileInfo.h"
  23 #include "support/lyxlib.h"
  24 #include "support/lstrings.h"
  25 #include "support/tostr.h"
  26 #include "support/filetools.h"
  27
  28 #include "lyx_forms.h"
  29
  30 #include <boost/bind.hpp>
  31 #include <boost/regex.hpp>
  32
  33 #include <algorithm>
  34 #include <map>
  35 #include <grp.h>
  36 #include <pwd.h>
  37
  38 //#ifdef HAVE_ERRNO_H
  39 //#include <cerrno>
  40 //#endif
  41
  42 #if HAVE_DIRENT_H
  43 # include <dirent.h>
  44 #else
  45 # define dirent direct
  46 # if HAVE_SYS_NDIR_H
  47 #  include <sys/ndir.h>
  48 # endif
  49 # if HAVE_SYS_DIR_H
  50 #  include <sys/dir.h>
  51 # endif
  52 # if HAVE_NDIR_H
  53 #  include <ndir.h>
  54 # endif
  55 #endif
  56
  57 using lyx::support::AbsolutePath;
  58 using lyx::support::AddName;
  59 using lyx::support::ExpandPath;
  60 using lyx::support::FileInfo;
  61 using lyx::support::getcwd;
  62 using lyx::support::GetEnvPath;
  63 using lyx::support::LyXReadLink;
  64 using lyx::support::MakeAbsPath;
  65 using lyx::support::OnlyFilename;
  66 using lyx::support::split;
  67 using lyx::support::subst;
  68 using lyx::support::suffixIs;
  69 using lyx::support::trim;
  70
  71 using std::max;
  72 using std::sort;
  73 using std::string;
  74 using std::map;
  75
  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 // *** User cache class implementation
 107 /// User cache class definition
 108 class UserCache {
 109 public:
 110         /// seeks user name from group ID
 111         string const & find(uid_t ID) const {
 112                 Users::const_iterator cit = users.find(ID);
 113                 if (cit == users.end()) {
 114                         add(ID);
 115                         return users[ID];
 116                 }
 117                 return cit->second;
 118         }
 119 private:
 120         ///
 121         void add(uid_t ID) const;
 122         ///
 123         typedef map<uid_t, string> Users;
 124         ///
 125         mutable Users users;
 126 };
 127
 128
 129 void UserCache::add(uid_t ID) const
 130 {
 131         struct passwd const * entry = getpwuid(ID);
 132         users[ID] = entry ? entry->pw_name : tostr(int(ID));
 133 }
 134
 135
 136 /// Group cache class definition
 137 class GroupCache {
 138 public:
 139         /// seeks group name from group ID
 140         string const & find(gid_t ID) const ;
 141 private:
 142         ///
 143         void add(gid_t ID) const;
 144         ///
 145         typedef map<gid_t, string> Groups;
 146         ///
 147         mutable Groups groups;
 148 };
 149
 150
 151 string const & GroupCache::find(gid_t ID) const
 152 {
 153         Groups::const_iterator cit = groups.find(ID);
 154         if (cit == groups.end()) {
 155                 add(ID);
 156                 return groups[ID];
 157         }
 158         return cit->second;
 159 }
 160
 161
 162 void GroupCache::add(gid_t ID) const
 163 {
 164         struct group const * entry = getgrgid(ID);
 165         groups[ID] = entry ? entry->gr_name : tostr(int(ID));
 166 }
 167
 168 // local instances
 169 UserCache lyxUserCache;
 170 GroupCache lyxGroupCache;
 171
 172 // compares two LyXDirEntry objects content (used for sort)
 173 class comp_direntry {
 174 public:
 175         bool operator()(DirEntry const & r1, DirEntry const & r2) const
 176         {
 177                 bool const r1d = suffixIs(r1.name_, '/');
 178                 bool const r2d = suffixIs(r2.name_, '/');
 179                 if (r1d && !r2d)
 180                         return true;
 181                 if (!r1d && r2d)
 182                         return false;
 183                 return r1.name_ < r2.name_;
 184         }
 185 };
 186
 187
 188 } // namespace anon
 189
 190
 191
 192 // *** FileDialog::Private class implementation
 193
 194 // static members
 195 FD_filedialog * FileDialog::Private::file_dlg_form_ = 0;
 196 FileDialog::Private * FileDialog::Private::current_dlg_ = 0;
 197 int FileDialog::Private::minw_ = 0;
 198 int FileDialog::Private::minh_ = 0;
 199
 200
 201 namespace {
 202
 203 boost::regex getRegex(string const & pat)
 204 {
 205         // We massage the pattern a bit so that the usual
 206         // shell pattern we all are used to will work.
 207         // One nice thing about using a real regex is that
 208         // things like "*.*[^~]" will work also.
 209         // build the regex string.
 210         string pattern = subst(pat, ".", "\\.");
 211         pattern = subst(pattern, "*", ".*");
 212
 213         boost::regex reg(pattern);
 214         return reg;
 215 }
 216
 217
 218 bool globMatch(string const & a, boost::regex const & reg)
 219 {
 220         return boost::regex_match(a, reg);
 221 }
 222
 223 } // namespace anon
 224
 225
 226 // Reread: updates dialog list to match class directory
 227 void FileDialog::Private::Reread()
 228 {
 229         // Opens directory
 230         DIR * dir = ::opendir(directory_.c_str());
 231         if (!dir) {
 232 // FIXME: re-add ...
 233 #if 0
 234                 Alert::err_alert(_("Warning! Couldn't open directory."),
 235                         directory_);
 236 #endif
 237                 directory_ = getcwd();
 238                 dir = ::opendir(directory_.c_str());
 239         }
 240
 241         // Clear the present namelist
 242         dir_entries_.clear();
 243
 244         // Updates display
 245         fl_hide_object(file_dlg_form_->List);
 246         fl_clear_browser(file_dlg_form_->List);
 247         fl_set_input(file_dlg_form_->DirBox, directory_.c_str());
 248
 249         // Splits complete directory name into directories and compute depth
 250         depth_ = 0;
 251         string line, Temp;
 252         string mode;
 253         string File = directory_;
 254         if (File != "/") {
 255                 File = split(File, Temp, '/');
 256         }
 257         while (!File.empty() || !Temp.empty()) {
 258                 string dline = "@b" + line + Temp + '/';
 259                 fl_add_browser_line(file_dlg_form_->List, dline.c_str());
 260                 File = split(File, Temp, '/');
 261                 line += ' ';
 262                 ++depth_;
 263         }
 264
 265         // Parses all entries of the given subdirectory
 266         boost::regex reg = getRegex(mask_);
 267
 268         time_t curTime = time(0);
 269         rewinddir(dir);
 270         while (dirent * entry = readdir(dir)) {
 271                 bool isLink = false, isDir = false;
 272
 273                 // If the pattern doesn't start with a dot, skip hidden files
 274                 if (!mask_.empty() && mask_[0] != '.' &&
 275                     entry->d_name[0] == '.')
 276                         continue;
 277
 278                 // Gets filename
 279                 string fname = entry->d_name;
 280
 281                 // Under all circumstances, "." and ".." are not wanted
 282                 if (fname == "." || fname == "..")
 283                         continue;
 284
 285                 // gets file status
 286                 File = AddName(directory_, fname);
 287
 288                 FileInfo fileInfo(File, true);
 289
 290                 // can this really happen?
 291                 if (!fileInfo.isOK())
 292                         continue;
 293
 294                 mode = fileInfo.modeString();
 295                 unsigned int const nlink = fileInfo.getNumberOfLinks();
 296                 string const user  = lyxUserCache.find(fileInfo.getUid());
 297                 string const group = lyxGroupCache.find(fileInfo.getGid());
 298
 299                 time_t modtime = fileInfo.getModificationTime();
 300                 string Time = ctime(&modtime);
 301
 302                 if (curTime > modtime + SIX_MONTH_SEC
 303                     || curTime < modtime + ONE_HOUR_SEC) {
 304                         // The file is fairly old or in the future. POSIX says
 305                         // the cutoff is 6 months old. Allow a 1 hour slop
 306                         // factor for what is considered "the future", to
 307                         // allow for NFS server/client clock disagreement.
 308                         // Show the year instead of the time of day.
 309                         Time.erase(10, 9);
 310                         Time.erase(15, string::npos);
 311                 } else {
 312                         Time.erase(16, string::npos);
 313                 }
 314
 315                 string buffer = mode + ' ' +
 316                         tostr(nlink) + ' ' +
 317                         user + ' ' +
 318                         group + ' ' +
 319                         Time.substr(4, string::npos) + ' ';
 320
 321                 buffer += entry->d_name;
 322                 buffer += fileInfo.typeIndicator();
 323
 324                 isLink = fileInfo.isLink();
 325                 if (isLink) {
 326                         string Link;
 327
 328                         if (LyXReadLink(File, Link)) {
 329                                 buffer += " -> ";
 330                                 buffer += Link;
 331
 332                                 // This gives the FileType of the file that
 333                                 // is really pointed too after resolving all
 334                                 // symlinks. This is not necessarily the same
 335                                 // as the type of Link (which could again be a
 336                                 // link). Is that intended?
 337                                 //                              JV 199902
 338                                 fileInfo.newFile(File);
 339                                 if (fileInfo.isOK())
 340                                         buffer += fileInfo.typeIndicator();
 341                                 else
 342                                         continue;
 343                         }
 344                 }
 345
 346                 // filters files according to pattern and type
 347                 if (fileInfo.isRegular()
 348                     || fileInfo.isChar()
 349                     || fileInfo.isBlock()
 350                     || fileInfo.isFifo()) {
 351                         if (!globMatch(fname, reg))
 352                                 continue;
 353                 } else if (!(isDir = fileInfo.isDir()))
 354                         continue;
 355
 356                 DirEntry tmp;
 357
 358                 // Note ls_entry_ is an string!
 359                 tmp.ls_entry_ = buffer;
 360                 // creates used name
 361                 string temp = fname;
 362                 if (isDir)
 363                         temp += '/';
 364
 365                 tmp.name_ = temp;
 366                 // creates displayed name
 367                 temp = entry->d_name;
 368                 if (isLink)
 369                         temp += '@';
 370                 else
 371                         temp += fileInfo.typeIndicator();
 372                 tmp.displayed_ = temp;
 373
 374                 dir_entries_.push_back(tmp);
 375         }
 376
 377         closedir(dir);
 378
 379         // Sort the names
 380         sort(dir_entries_.begin(), dir_entries_.end(), comp_direntry());
 381
 382         // Add them to directory box
 383         for (DirEntries::const_iterator cit = dir_entries_.begin();
 384              cit != dir_entries_.end(); ++cit) {
 385                 string const temp = line + cit->displayed_;
 386                 fl_add_browser_line(file_dlg_form_->List, temp.c_str());
 387         }
 388         fl_set_browser_topline(file_dlg_form_->List, depth_);
 389         fl_show_object(file_dlg_form_->List);
 390         last_sel_ = -1;
 391 }
 392
 393
 394 // SetDirectory: sets dialog current directory
 395 void FileDialog::Private::SetDirectory(string const & path)
 396 {
 397         string tmp;
 398         if (path.empty())
 399                 tmp = getcwd();
 400         else
 401                 tmp = MakeAbsPath(ExpandPath(path), directory_);
 402
 403         // must check the directory exists
 404         DIR * dir = ::opendir(tmp.c_str());
 405         if (!dir) {
 406 // FIXME: re-add ...
 407 #if 0
 408                 Alert::err_alert(_("Warning! Couldn't open directory."), tmp);
 409 #endif
 410         } else {
 411                 ::closedir(dir);
 412                 directory_ = tmp;
 413         }
 414 }
 415
 416
 417 // SetMask: sets dialog file mask
 418 void FileDialog::Private::SetMask(string const & newmask)
 419 {
 420         mask_ = newmask;
 421         fl_set_input(file_dlg_form_->PatBox, mask_.c_str());
 422 }
 423
 424
 425 // SetInfoLine: sets dialog information line
 426 void FileDialog::Private::SetInfoLine(string const & line)
 427 {
 428         info_line_ = line;
 429         fl_set_object_label(file_dlg_form_->FileInfo, info_line_.c_str());
 430 }
 431
 432
 433 FileDialog::Private::Private()
 434 {
 435         directory_ = MakeAbsPath(string("."));
 436         mask_ = '*';
 437
 438         // Creates form if necessary.
 439         if (!file_dlg_form_) {
 440                 file_dlg_form_ = build_filedialog(this);
 441                 minw_ = file_dlg_form_->form->w;
 442                 minh_ = file_dlg_form_->form->h;
 443                 // Set callbacks. This means that we don't need a patch file
 444                 fl_set_object_callback(file_dlg_form_->DirBox,
 445                                        C_LyXFileDlg_FileDlgCB, 0);
 446                 fl_set_object_callback(file_dlg_form_->PatBox,
 447                                        C_LyXFileDlg_FileDlgCB, 1);
 448                 fl_set_object_callback(file_dlg_form_->List,
 449                                        C_LyXFileDlg_FileDlgCB, 2);
 450                 fl_set_object_callback(file_dlg_form_->Filename,
 451                                        C_LyXFileDlg_FileDlgCB, 3);
 452                 fl_set_object_callback(file_dlg_form_->Rescan,
 453                                        C_LyXFileDlg_FileDlgCB, 10);
 454                 fl_set_object_callback(file_dlg_form_->Home,
 455                                        C_LyXFileDlg_FileDlgCB, 11);
 456                 fl_set_object_callback(file_dlg_form_->User1,
 457                                        C_LyXFileDlg_FileDlgCB, 12);
 458                 fl_set_object_callback(file_dlg_form_->User2,
 459                                        C_LyXFileDlg_FileDlgCB, 13);
 460
 461                 // Make sure pressing the close box doesn't crash LyX. (RvdK)
 462                 fl_set_form_atclose(file_dlg_form_->form,
 463                                     C_LyXFileDlg_CancelCB, 0);
 464                 // Register doubleclick callback
 465                 fl_set_browser_dblclick_callback(file_dlg_form_->List,
 466                                                  C_LyXFileDlg_DoubleClickCB,
 467                                                  0);
 468         }
 469         fl_hide_object(file_dlg_form_->User1);
 470         fl_hide_object(file_dlg_form_->User2);
 471
 472         r_ = Dialogs::redrawGUI().connect(boost::bind(&FileDialog::Private::redraw, this));
 473 }
 474
 475
 476 FileDialog::Private::~Private()
 477 {
 478         r_.disconnect();
 479 }
 480
 481
 482 void FileDialog::Private::redraw()
 483 {
 484         if (file_dlg_form_->form && file_dlg_form_->form->visible)
 485                 fl_redraw_form(file_dlg_form_->form);
 486 }
 487
 488
 489 // SetButton: sets file selector user button action
 490 void FileDialog::Private::SetButton(int index, string const & name,
 491                            string const & path)
 492 {
 493         FL_OBJECT * ob;
 494         string * tmp;
 495
 496         if (index == 0) {
 497                 ob = file_dlg_form_->User1;
 498                 tmp = &user_path1_;
 499         } else if (index == 1) {
 500                 ob = file_dlg_form_->User2;
 501                 tmp = &user_path2_;
 502         } else {
 503                 return;
 504         }
 505
 506         if (!name.empty()) {
 507                 fl_set_object_label(ob, idex(name).c_str());
 508                 fl_set_button_shortcut(ob, scex(name).c_str(), 1);
 509                 fl_show_object(ob);
 510                 *tmp = path;
 511         } else {
 512                 fl_hide_object(ob);
 513                 tmp->erase();
 514         }
 515 }
 516
 517
 518 // GetDirectory: gets last dialog directory
 519 string const FileDialog::Private::GetDirectory() const
 520 {
 521         if (!directory_.empty())
 522                 return directory_;
 523         else
 524                 return string(".");
 525 }
 526
 527 namespace {
 528         bool x_sync_kludge(bool ret)
 529         {
 530                 XSync(fl_get_display(), false);
 531                 return ret;
 532         }
 533 } // namespace anon
 534
 535 // RunDialog: handle dialog during file selection
 536 bool FileDialog::Private::RunDialog()
 537 {
 538         force_cancel_ = false;
 539         force_ok_ = false;
 540
 541         // event loop
 542         while (true) {
 543                 FL_OBJECT * ob = fl_do_forms();
 544
 545                 if (ob == file_dlg_form_->Ready) {
 546                         if (HandleOK())
 547                                 return x_sync_kludge(true);
 548
 549                 } else if (ob == file_dlg_form_->Cancel || force_cancel_)
 550                         return x_sync_kludge(false);
 551
 552                 else if (force_ok_)
 553                         return x_sync_kludge(true);
 554         }
 555 }
 556
 557
 558 // XForms objects callback (static)
 559 void FileDialog::Private::FileDlgCB(FL_OBJECT *, long arg)
 560 {
 561         if (!current_dlg_)
 562                 return;
 563
 564         switch (arg) {
 565
 566         case 0: // get directory
 567                 current_dlg_->SetDirectory(fl_get_input(file_dlg_form_->DirBox));
 568                 current_dlg_->Reread();
 569                 break;
 570
 571         case 1: // get mask
 572                 current_dlg_->SetMask(fl_get_input(file_dlg_form_->PatBox));
 573                 current_dlg_->Reread();
 574                 break;
 575
 576         case 2: // list
 577                 current_dlg_->HandleListHit();
 578                 break;
 579
 580         case 10: // rescan
 581                 current_dlg_->SetDirectory(fl_get_input(file_dlg_form_->DirBox));
 582                 current_dlg_->SetMask(fl_get_input(file_dlg_form_->PatBox));
 583                 current_dlg_->Reread();
 584                 break;
 585
 586         case 11: // home
 587                 current_dlg_->SetDirectory(GetEnvPath("HOME"));
 588                 current_dlg_->SetMask(fl_get_input(file_dlg_form_->PatBox));
 589                 current_dlg_->Reread();
 590                 break;
 591
 592         case 12: // user button 1
 593                 current_dlg_->SetDirectory(current_dlg_->user_path1_);
 594                 current_dlg_->SetMask(fl_get_input(file_dlg_form_->PatBox));
 595                 current_dlg_->Reread();
 596                 break;
 597
 598         case 13: // user button 2
 599                 current_dlg_->SetDirectory(current_dlg_->user_path2_);
 600                 current_dlg_->SetMask(fl_get_input(file_dlg_form_->PatBox));
 601                 current_dlg_->Reread();
 602                 break;
 603
 604         }
 605 }
 606
 607
 608 // Handle callback from list
 609 void FileDialog::Private::HandleListHit()
 610 {
 611         // set info line
 612         int const select_ = fl_get_browser(file_dlg_form_->List);
 613         if (select_ > depth_)
 614                 SetInfoLine(dir_entries_[select_ - depth_ - 1].ls_entry_);
 615         else
 616                 SetInfoLine(string());
 617 }
 618
 619
 620 // Callback for double click in list
 621 void FileDialog::Private::DoubleClickCB(FL_OBJECT *, long)
 622 {
 623         // Simulate click on OK button
 624         if (current_dlg_->HandleDoubleClick())
 625                 current_dlg_->Force(false);
 626 }
 627
 628
 629 // Handle double click from list
 630 bool FileDialog::Private::HandleDoubleClick()
 631 {
 632         string tmp;
 633
 634         // set info line
 635         bool isDir = true;
 636         int const select_ = fl_get_browser(file_dlg_form_->List);
 637         if (select_ > depth_) {
 638                 tmp = dir_entries_[select_ - depth_ - 1].name_;
 639                 SetInfoLine(dir_entries_[select_ - depth_ - 1].ls_entry_);
 640                 if (!suffixIs(tmp, '/')) {
 641                         isDir = false;
 642                         fl_set_input(file_dlg_form_->Filename, tmp.c_str());
 643                 }
 644         } else if (select_ != 0) {
 645                 SetInfoLine(string());
 646         } else
 647                 return true;
 648
 649         // executes action
 650         if (isDir) {
 651                 string Temp;
 652
 653                 // builds new directory name
 654                 if (select_ > depth_) {
 655                         // Directory deeper down
 656                         // First, get directory with trailing /
 657                         Temp = fl_get_input(file_dlg_form_->DirBox);
 658                         if (!suffixIs(Temp, '/'))
 659                                 Temp += '/';
 660                         Temp += tmp;
 661                 } else {
 662                         // Directory higher up
 663                         Temp.erase();
 664                         for (int i = 0; i < select_; ++i) {
 665                                 string piece = fl_get_browser_line(file_dlg_form_->List, i+1);
 666                                 // The '+2' is here to count the '@b' (JMarc)
 667                                 Temp += piece.substr(i + 2);
 668                         }
 669                 }
 670
 671                 // assigns it
 672                 SetDirectory(Temp);
 673                 Reread();
 674                 return false;
 675         }
 676         return true;
 677 }
 678
 679
 680 // Handle OK button call
 681 bool FileDialog::Private::HandleOK()
 682 {
 683         // mask was changed
 684         string tmp = fl_get_input(file_dlg_form_->PatBox);
 685         if (tmp != mask_) {
 686                 SetMask(tmp);
 687                 Reread();
 688                 return false;
 689         }
 690
 691         // directory was changed
 692         tmp = fl_get_input(file_dlg_form_->DirBox);
 693         if (tmp != directory_) {
 694                 SetDirectory(tmp);
 695                 Reread();
 696                 return false;
 697         }
 698
 699         // Handle return from list
 700         int const select = fl_get_browser(file_dlg_form_->List);
 701         if (select > depth_) {
 702                 string const temp = dir_entries_[select - depth_ - 1].name_;
 703                 if (!suffixIs(temp, '/')) {
 704                         // If user didn't type anything, use browser
 705                         string const name = fl_get_input(file_dlg_form_->Filename);
 706                         if (name.empty())
 707                                 fl_set_input(file_dlg_form_->Filename, temp.c_str());
 708                         return true;
 709                 }
 710         }
 711
 712         // Emulate a doubleclick
 713         return HandleDoubleClick();
 714 }
 715
 716
 717 // Handle Cancel CB from WM close
 718 int FileDialog::Private::CancelCB(FL_FORM *, void *)
 719 {
 720         // Simulate a click on the cancel button
 721         current_dlg_->Force(true);
 722         return FL_IGNORE;
 723 }
 724
 725
 726 // Simulates a click on OK/Cancel
 727 void FileDialog::Private::Force(bool cancel)
 728 {
 729         if (cancel) {
 730                 force_cancel_ = true;
 731                 fl_set_button(file_dlg_form_->Cancel, 1);
 732         } else {
 733                 force_ok_ = true;
 734                 fl_set_button(file_dlg_form_->Ready, 1);
 735         }
 736         // Start timer to break fl_do_forms loop soon
 737         fl_set_timer(file_dlg_form_->timer, 0.1);
 738 }
 739
 740
 741 // Select: launches dialog and returns selected file
 742 string const FileDialog::Private::Select(string const & title,
 743                                          string const & path,
 744                                          string const & mask,
 745                                          string const & suggested)
 746 {
 747         // handles new mask and path
 748         bool isOk = true;
 749         if (!mask.empty()) {
 750                 SetMask(mask);
 751                 isOk = false;
 752         }
 753         if (!path.empty()) {
 754                 SetDirectory(path);
 755                 isOk = false;
 756         }
 757         if (!isOk)
 758                 Reread();
 759
 760         // highlight the suggested file in the browser, if it exists.
 761         int sel = 0;
 762         string const filename = OnlyFilename(suggested);
 763         if (!filename.empty()) {
 764                 for (int i = 0; i < fl_get_browser_maxline(file_dlg_form_->List); ++i) {
 765                         string s = fl_get_browser_line(file_dlg_form_->List, i + 1);
 766                         s = trim(s);
 767                         if (s == filename) {
 768                                 sel = i + 1;
 769                                 break;
 770                         }
 771                 }
 772         }
 773
 774         if (sel != 0)
 775                 fl_select_browser_line(file_dlg_form_->List, sel);
 776         int const top = max(sel - 5, 1);
 777         fl_set_browser_topline(file_dlg_form_->List, top);
 778
 779         // checks whether dialog can be started
 780         if (current_dlg_)
 781                 return string();
 782         current_dlg_ = this;
 783
 784         // runs dialog
 785         SetInfoLine(string());
 786         setEnabled(file_dlg_form_->Filename, true);
 787         fl_set_input(file_dlg_form_->Filename, suggested.c_str());
 788         fl_set_button(file_dlg_form_->Cancel, 0);
 789         fl_set_button(file_dlg_form_->Ready, 0);
 790         fl_set_focus_object(file_dlg_form_->form, file_dlg_form_->Filename);
 791         fl_deactivate_all_forms();
 792         // Prevent xforms crashing if the dialog gets too small by preventing
 793         // it from being shrunk beyond a minimum size.
 794         // calls to fl_set_form_minsize/maxsize apply only to the next
 795         // fl_show_form(), so this comes first.
 796         fl_set_form_minsize(file_dlg_form_->form, minw_, minh_);
 797
 798         fl_show_form(file_dlg_form_->form,
 799                      FL_PLACE_MOUSE | FL_FREE_SIZE, 0,
 800                      title.c_str());
 801
 802         isOk = RunDialog();
 803
 804         fl_hide_form(file_dlg_form_->form);
 805         fl_activate_all_forms();
 806         current_dlg_ = 0;
 807
 808         // Returns filename or string() if no valid selection was made
 809         if (!isOk || !fl_get_input(file_dlg_form_->Filename)[0])
 810                 return string();
 811
 812         file_name_ = fl_get_input(file_dlg_form_->Filename);
 813
 814         if (!AbsolutePath(file_name_))
 815                 file_name_ = AddName(fl_get_input(file_dlg_form_->DirBox), file_name_);
 816         return file_name_;
 817 }
 818
 819
 820 // SelectDir: launches dialog and returns selected directory
 821 string const FileDialog::Private::SelectDir(string const & title,
 822                                          string const & path,
 823                                          string const & suggested)
 824 {
 825         SetMask("*/");
 826         // handles new path
 827         bool isOk = true;
 828         if (!path.empty()) {
 829                 // handle case where path does not end with "/"
 830                 // remerge path+suggested and check if it is a valid path
 831                 if (!suggested.empty()) {
 832                         string tmp = suggested;
 833                         if (!suffixIs(tmp, '/'))
 834                                 tmp += '/';
 835                         string full_path = path;
 836                         full_path += tmp;
 837                         // check if this is really a directory
 838                         DIR * dir = ::opendir(full_path.c_str());
 839                         if (dir)
 840                                 SetDirectory(full_path);
 841                         else
 842                                 SetDirectory(path);
 843                 } else
 844                         SetDirectory(path);
 845                 isOk = false;
 846         }
 847         if (!isOk)
 848                 Reread();
 849
 850         // checks whether dialog can be started
 851         if (current_dlg_)
 852                 return string();
 853         current_dlg_ = this;
 854
 855         // runs dialog
 856         SetInfoLine(string());
 857         fl_set_input(file_dlg_form_->Filename, "");
 858         setEnabled(file_dlg_form_->Filename, false);
 859         fl_set_button(file_dlg_form_->Cancel, 0);
 860         fl_set_button(file_dlg_form_->Ready, 0);
 861         fl_set_focus_object(file_dlg_form_->form, file_dlg_form_->DirBox);
 862         fl_deactivate_all_forms();
 863         fl_show_form(file_dlg_form_->form,
 864                      FL_PLACE_MOUSE | FL_FREE_SIZE, 0,
 865                      title.c_str());
 866
 867         isOk = RunDialog();
 868
 869         fl_hide_form(file_dlg_form_->form);
 870         fl_activate_all_forms();
 871         current_dlg_ = 0;
 872
 873         // Returns directory or string() if no valid selection was made
 874         if (!isOk)
 875                 return string();
 876
 877         file_name_ = fl_get_input(file_dlg_form_->DirBox);
 878         return file_name_;
 879 }