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 #include "xforms_helpers.h"
  33
  34 #include <boost/bind.hpp>
  35
  36 //#ifdef HAVE_ERRNO_H
  37 //#include <cerrno>
  38 //#endif
  39
  40 #if HAVE_DIRENT_H
  41 # include <dirent.h>
  42 #else
  43 # define dirent direct
  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
  56 #include "support/filetools.h"
  57 #include "FormFiledialog.h"
  58 #include "forms/form_filedialog.h"
  59 #include FORMS_H_LOCATION
  60
  61 namespace {
  62
  63 // six months, in seconds
  64 long const SIX_MONTH_SEC = 6L * 30L * 24L * 60L * 60L;
  65 //static
  66 long const ONE_HOUR_SEC = 60L * 60L;
  67
  68 extern "C" {
  69
  70         static
  71         int C_LyXFileDlg_CancelCB(FL_FORM *fl, void *xev)
  72         {
  73                 return FileDialog::Private::CancelCB(fl, xev);
  74         }
  75
  76         static
  77         void C_LyXFileDlg_DoubleClickCB(FL_OBJECT * ob, long data)
  78         {
  79                 FileDialog::Private::DoubleClickCB(ob, data);
  80         }
  81
  82         static
  83         void C_LyXFileDlg_FileDlgCB(FL_OBJECT * ob, long data)
  84         {
  85                 FileDialog::Private::FileDlgCB(ob, data);
  86         }
  87
  88 }
  89
  90 // *** User cache class implementation
  91 /// User cache class definition
  92 class UserCache {
  93 public:
  94         /// seeks user name from group ID
  95         string const & find(uid_t ID) const {
  96                 Users::const_iterator cit = users.find(ID);
  97                 if (cit == users.end()) {
  98                         add(ID);
  99                         return users[ID];
 100                 }
 101                 return cit->second;
 102         }
 103 private:
 104         ///
 105         void add(uid_t ID) const;
 106         ///
 107         typedef map<uid_t, string> Users;
 108         ///
 109         mutable Users users;
 110 };
 111
 112
 113 void UserCache::add(uid_t ID) const
 114 {
 115         struct passwd const * entry = getpwuid(ID);
 116         users[ID] = entry ? entry->pw_name : tostr(ID);
 117 }
 118
 119
 120 /// Group cache class definition
 121 class GroupCache {
 122 public:
 123         /// seeks group name from group ID
 124         string const & find(gid_t ID) const ;
 125 private:
 126         ///
 127         void add(gid_t ID) const;
 128         ///
 129         typedef map<gid_t, string> Groups;
 130         ///
 131         mutable Groups groups;
 132 };
 133
 134
 135 string const & GroupCache::find(gid_t ID) const
 136 {
 137         Groups::const_iterator cit = groups.find(ID);
 138         if (cit == groups.end()) {
 139                 add(ID);
 140                 return groups[ID];
 141         }
 142         return cit->second;
 143 }
 144
 145
 146 void GroupCache::add(gid_t ID) const
 147 {
 148         struct group const * entry = getgrgid(ID);
 149         groups[ID] = entry ? entry->gr_name : tostr(ID);
 150 }
 151
 152 // local instances
 153 UserCache lyxUserCache;
 154 GroupCache lyxGroupCache;
 155
 156 // compares two LyXDirEntry objects content (used for sort)
 157 class comp_direntry {
 158 public:
 159         bool operator()(DirEntry const & r1, DirEntry const & r2) const
 160         {
 161                 bool const r1d = suffixIs(r1.name_, '/');
 162                 bool const r2d = suffixIs(r2.name_, '/');
 163                 if (r1d && !r2d)
 164                         return true;
 165                 if (!r1d && r2d)
 166                         return false;
 167                 return r1.name_ < r2.name_;
 168         }
 169 };
 170
 171
 172 } // namespace anon
 173
 174
 175
 176 // *** FileDialog::Private class implementation
 177
 178 // static members
 179 FD_filedialog * FileDialog::Private::file_dlg_form_ = 0;
 180 FileDialog::Private * FileDialog::Private::current_dlg_ = 0;
 181 int FileDialog::Private::minw_ = 0;
 182 int FileDialog::Private::minh_ = 0;
 183
 184
 185 // Reread: updates dialog list to match class directory
 186 void FileDialog::Private::Reread()
 187 {
 188         // Opens directory
 189         DIR * dir = ::opendir(directory_.c_str());
 190         if (!dir) {
 191 // FIXME: re-add ...
 192 #if 0
 193                 Alert::err_alert(_("Warning! Couldn't open directory."),
 194                         directory_);
 195 #endif
 196                 directory_ = lyx::getcwd();
 197                 dir = ::opendir(directory_.c_str());
 198         }
 199
 200         // Clear the present namelist
 201         dir_entries_.clear();
 202
 203         // Updates display
 204         fl_hide_object(file_dlg_form_->List);
 205         fl_clear_browser(file_dlg_form_->List);
 206         fl_set_input(file_dlg_form_->DirBox, directory_.c_str());
 207
 208         // Splits complete directory name into directories and compute depth
 209         depth_ = 0;
 210         string line, Temp;
 211         string mode;
 212         string File = directory_;
 213         if (File != "/") {
 214                 File = split(File, Temp, '/');
 215         }
 216         while (!File.empty() || !Temp.empty()) {
 217                 string dline = "@b" + line + Temp + '/';
 218                 fl_add_browser_line(file_dlg_form_->List, dline.c_str());
 219                 File = split(File, Temp, '/');
 220                 line += ' ';
 221                 ++depth_;
 222         }
 223
 224         // Parses all entries of the given subdirectory
 225         time_t curTime = time(0);
 226         rewinddir(dir);
 227         while (dirent * entry = readdir(dir)) {
 228                 bool isLink = false, isDir = false;
 229
 230                 // If the pattern doesn't start with a dot, skip hidden files
 231                 if (!mask_.empty() && mask_[0] != '.' &&
 232                     entry->d_name[0] == '.')
 233                         continue;
 234
 235                 // Gets filename
 236                 string fname = entry->d_name;
 237
 238                 // Under all circumstances, "." and ".." are not wanted
 239                 if (fname == "." || fname == "..")
 240                         continue;
 241
 242                 // gets file status
 243                 File = AddName(directory_, fname);
 244
 245                 FileInfo fileInfo(File, true);
 246
 247                 // can this really happen?
 248                 if (!fileInfo.isOK())
 249                         continue;
 250
 251                 mode = fileInfo.modeString();
 252                 unsigned int const nlink = fileInfo.getNumberOfLinks();
 253                 string const user  = lyxUserCache.find(fileInfo.getUid());
 254                 string const group = lyxGroupCache.find(fileInfo.getGid());
 255
 256                 time_t modtime = fileInfo.getModificationTime();
 257                 string Time = ctime(&modtime);
 258
 259                 if (curTime > modtime + SIX_MONTH_SEC
 260                     || curTime < modtime + ONE_HOUR_SEC) {
 261                         // The file is fairly old or in the future. POSIX says
 262                         // the cutoff is 6 months old. Allow a 1 hour slop
 263                         // factor for what is considered "the future", to
 264                         // allow for NFS server/client clock disagreement.
 265                         // Show the year instead of the time of day.
 266                         Time.erase(10, 9);
 267                         Time.erase(15, string::npos);
 268                 } else {
 269                         Time.erase(16, string::npos);
 270                 }
 271
 272                 string buffer = mode + ' ' +
 273                         tostr(nlink) + ' ' +
 274                         user + ' ' +
 275                         group + ' ' +
 276                         Time.substr(4, string::npos) + ' ';
 277
 278                 buffer += entry->d_name;
 279                 buffer += fileInfo.typeIndicator();
 280
 281                 isLink = fileInfo.isLink();
 282                 if (isLink) {
 283                         string Link;
 284
 285                         if (LyXReadLink(File, Link)) {
 286                                 buffer += " -> ";
 287                                 buffer += Link;
 288
 289                                 // This gives the FileType of the file that
 290                                 // is really pointed too after resolving all
 291                                 // symlinks. This is not necessarily the same
 292                                 // as the type of Link (which could again be a
 293                                 // link). Is that intended?
 294                                 //                              JV 199902
 295                                 fileInfo.newFile(File);
 296                                 if (fileInfo.isOK())
 297                                         buffer += fileInfo.typeIndicator();
 298                                 else
 299                                         continue;
 300                         }
 301                 }
 302
 303                 // filters files according to pattern and type
 304                 if (fileInfo.isRegular()
 305                     || fileInfo.isChar()
 306                     || fileInfo.isBlock()
 307                     || fileInfo.isFifo()) {
 308                         if (!regexMatch(fname, mask_))
 309                                 continue;
 310                 } else if (!(isDir = fileInfo.isDir()))
 311                         continue;
 312
 313                 DirEntry tmp;
 314
 315                 // Note ls_entry_ is an string!
 316                 tmp.ls_entry_ = buffer;
 317                 // creates used name
 318                 string temp = fname;
 319                 if (isDir)
 320                         temp += '/';
 321
 322                 tmp.name_ = temp;
 323                 // creates displayed name
 324                 temp = entry->d_name;
 325                 if (isLink)
 326                         temp += '@';
 327                 else
 328                         temp += fileInfo.typeIndicator();
 329                 tmp.displayed_ = temp;
 330
 331                 dir_entries_.push_back(tmp);
 332         }
 333
 334         closedir(dir);
 335
 336         // Sort the names
 337         sort(dir_entries_.begin(), dir_entries_.end(), comp_direntry());
 338
 339         // Add them to directory box
 340         for (DirEntries::const_iterator cit = dir_entries_.begin();
 341              cit != dir_entries_.end(); ++cit) {
 342                 string const temp = line + cit->displayed_;
 343                 fl_add_browser_line(file_dlg_form_->List, temp.c_str());
 344         }
 345         fl_set_browser_topline(file_dlg_form_->List, depth_);
 346         fl_show_object(file_dlg_form_->List);
 347         last_sel_ = -1;
 348 }
 349
 350
 351 // SetDirectory: sets dialog current directory
 352 void FileDialog::Private::SetDirectory(string const & path)
 353 {
 354         string tmp;
 355         if (path.empty())
 356                 tmp = lyx::getcwd();
 357         else
 358                 tmp = MakeAbsPath(ExpandPath(path), directory_);
 359
 360         // must check the directory exists
 361         DIR * dir = ::opendir(tmp.c_str());
 362         if (!dir) {
 363 // FIXME: re-add ...
 364 #if 0
 365                 Alert::err_alert(_("Warning! Couldn't open directory."), tmp);
 366 #endif
 367         } else {
 368                 ::closedir(dir);
 369                 directory_ = tmp;
 370         }
 371 }
 372
 373
 374 // SetMask: sets dialog file mask
 375 void FileDialog::Private::SetMask(string const & newmask)
 376 {
 377         mask_ = newmask;
 378         fl_set_input(file_dlg_form_->PatBox, mask_.c_str());
 379 }
 380
 381
 382 // SetInfoLine: sets dialog information line
 383 void FileDialog::Private::SetInfoLine(string const & line)
 384 {
 385         info_line_ = line;
 386         fl_set_object_label(file_dlg_form_->FileInfo, info_line_.c_str());
 387 }
 388
 389
 390 FileDialog::Private::Private()
 391 {
 392         directory_ = MakeAbsPath(string("."));
 393         mask_ = '*';
 394
 395         // Creates form if necessary.
 396         if (!file_dlg_form_) {
 397                 file_dlg_form_ = build_filedialog(this);
 398                 minw_ = file_dlg_form_->form->w;
 399                 minh_ = file_dlg_form_->form->h;
 400                 // Set callbacks. This means that we don't need a patch file
 401                 fl_set_object_callback(file_dlg_form_->DirBox,
 402                                        C_LyXFileDlg_FileDlgCB, 0);
 403                 fl_set_object_callback(file_dlg_form_->PatBox,
 404                                        C_LyXFileDlg_FileDlgCB, 1);
 405                 fl_set_object_callback(file_dlg_form_->List,
 406                                        C_LyXFileDlg_FileDlgCB, 2);
 407                 fl_set_object_callback(file_dlg_form_->Filename,
 408                                        C_LyXFileDlg_FileDlgCB, 3);
 409                 fl_set_object_callback(file_dlg_form_->Rescan,
 410                                        C_LyXFileDlg_FileDlgCB, 10);
 411                 fl_set_object_callback(file_dlg_form_->Home,
 412                                        C_LyXFileDlg_FileDlgCB, 11);
 413                 fl_set_object_callback(file_dlg_form_->User1,
 414                                        C_LyXFileDlg_FileDlgCB, 12);
 415                 fl_set_object_callback(file_dlg_form_->User2,
 416                                        C_LyXFileDlg_FileDlgCB, 13);
 417
 418                 // Make sure pressing the close box doesn't crash LyX. (RvdK)
 419                 fl_set_form_atclose(file_dlg_form_->form,
 420                                     C_LyXFileDlg_CancelCB, 0);
 421                 // Register doubleclick callback
 422                 fl_set_browser_dblclick_callback(file_dlg_form_->List,
 423                                                  C_LyXFileDlg_DoubleClickCB,
 424                                                  0);
 425         }
 426         fl_hide_object(file_dlg_form_->User1);
 427         fl_hide_object(file_dlg_form_->User2);
 428
 429         r_ = Dialogs::redrawGUI().connect(boost::bind(&FileDialog::Private::redraw, this));
 430 }
 431
 432
 433 FileDialog::Private::~Private()
 434 {
 435         r_.disconnect();
 436 }
 437
 438
 439 void FileDialog::Private::redraw()
 440 {
 441         if (file_dlg_form_->form && file_dlg_form_->form->visible)
 442                 fl_redraw_form(file_dlg_form_->form);
 443 }
 444
 445
 446 // SetButton: sets file selector user button action
 447 void FileDialog::Private::SetButton(int index, string const & name,
 448                            string const & path)
 449 {
 450         FL_OBJECT * ob;
 451         string * tmp;
 452
 453         if (index == 0) {
 454                 ob = file_dlg_form_->User1;
 455                 tmp = &user_path1_;
 456         } else if (index == 1) {
 457                 ob = file_dlg_form_->User2;
 458                 tmp = &user_path2_;
 459         } else {
 460                 return;
 461         }
 462
 463         if (!name.empty()) {
 464                 fl_set_object_label(ob, idex(name).c_str());
 465                 fl_set_button_shortcut(ob, scex(name).c_str(), 1);
 466                 fl_show_object(ob);
 467                 *tmp = path;
 468         } else {
 469                 fl_hide_object(ob);
 470                 tmp->erase();
 471         }
 472 }
 473
 474
 475 // GetDirectory: gets last dialog directory
 476 string const FileDialog::Private::GetDirectory() const
 477 {
 478         if (!directory_.empty())
 479                 return directory_;
 480         else
 481                 return string(".");
 482 }
 483
 484 namespace {
 485         bool x_sync_kludge(bool ret)
 486         {
 487                 XSync(fl_get_display(), false);
 488                 return ret;
 489         }
 490 } // namespace anon
 491
 492 // RunDialog: handle dialog during file selection
 493 bool FileDialog::Private::RunDialog()
 494 {
 495         force_cancel_ = false;
 496         force_ok_ = false;
 497
 498         // event loop
 499         while (true) {
 500                 FL_OBJECT * ob = fl_do_forms();
 501
 502                 if (ob == file_dlg_form_->Ready) {
 503                         if (HandleOK())
 504                                 return x_sync_kludge(true);
 505
 506                 } else if (ob == file_dlg_form_->Cancel || force_cancel_)
 507                         return x_sync_kludge(false);
 508
 509                 else if (force_ok_)
 510                         return x_sync_kludge(true);
 511         }
 512 }
 513
 514
 515 // XForms objects callback (static)
 516 void FileDialog::Private::FileDlgCB(FL_OBJECT *, long arg)
 517 {
 518         if (!current_dlg_)
 519                 return;
 520
 521         switch (arg) {
 522
 523         case 0: // get directory
 524                 current_dlg_->SetDirectory(fl_get_input(file_dlg_form_->DirBox));
 525                 current_dlg_->Reread();
 526                 break;
 527
 528         case 1: // get mask
 529                 current_dlg_->SetMask(fl_get_input(file_dlg_form_->PatBox));
 530                 current_dlg_->Reread();
 531                 break;
 532
 533         case 2: // list
 534                 current_dlg_->HandleListHit();
 535                 break;
 536
 537         case 10: // rescan
 538                 current_dlg_->SetDirectory(fl_get_input(file_dlg_form_->DirBox));
 539                 current_dlg_->SetMask(fl_get_input(file_dlg_form_->PatBox));
 540                 current_dlg_->Reread();
 541                 break;
 542
 543         case 11: // home
 544                 current_dlg_->SetDirectory(GetEnvPath("HOME"));
 545                 current_dlg_->SetMask(fl_get_input(file_dlg_form_->PatBox));
 546                 current_dlg_->Reread();
 547                 break;
 548
 549         case 12: // user button 1
 550                 current_dlg_->SetDirectory(current_dlg_->user_path1_);
 551                 current_dlg_->SetMask(fl_get_input(file_dlg_form_->PatBox));
 552                 current_dlg_->Reread();
 553                 break;
 554
 555         case 13: // user button 2
 556                 current_dlg_->SetDirectory(current_dlg_->user_path2_);
 557                 current_dlg_->SetMask(fl_get_input(file_dlg_form_->PatBox));
 558                 current_dlg_->Reread();
 559                 break;
 560
 561         }
 562 }
 563
 564
 565 // Handle callback from list
 566 void FileDialog::Private::HandleListHit()
 567 {
 568         // set info line
 569         int const select_ = fl_get_browser(file_dlg_form_->List);
 570         if (select_ > depth_)
 571                 SetInfoLine(dir_entries_[select_ - depth_ - 1].ls_entry_);
 572         else
 573                 SetInfoLine(string());
 574 }
 575
 576
 577 // Callback for double click in list
 578 void FileDialog::Private::DoubleClickCB(FL_OBJECT *, long)
 579 {
 580         // Simulate click on OK button
 581         if (current_dlg_->HandleDoubleClick())
 582                 current_dlg_->Force(false);
 583 }
 584
 585
 586 // Handle double click from list
 587 bool FileDialog::Private::HandleDoubleClick()
 588 {
 589         string tmp;
 590
 591         // set info line
 592         bool isDir = true;
 593         int const select_ = fl_get_browser(file_dlg_form_->List);
 594         if (select_ > depth_) {
 595                 tmp = dir_entries_[select_ - depth_ - 1].name_;
 596                 SetInfoLine(dir_entries_[select_ - depth_ - 1].ls_entry_);
 597                 if (!suffixIs(tmp, '/')) {
 598                         isDir = false;
 599                         fl_set_input(file_dlg_form_->Filename, tmp.c_str());
 600                 }
 601         } else if (select_ != 0) {
 602                 SetInfoLine(string());
 603         } else
 604                 return true;
 605
 606         // executes action
 607         if (isDir) {
 608                 string Temp;
 609
 610                 // builds new directory name
 611                 if (select_ > depth_) {
 612                         // Directory deeper down
 613                         // First, get directory with trailing /
 614                         Temp = fl_get_input(file_dlg_form_->DirBox);
 615                         if (!suffixIs(Temp, '/'))
 616                                 Temp += '/';
 617                         Temp += tmp;
 618                 } else {
 619                         // Directory higher up
 620                         Temp.erase();
 621                         for (int i = 0; i < select_; ++i) {
 622                                 string piece = fl_get_browser_line(file_dlg_form_->List, i+1);
 623                                 // The '+2' is here to count the '@b' (JMarc)
 624                                 Temp += piece.substr(i + 2);
 625                         }
 626                 }
 627
 628                 // assigns it
 629                 SetDirectory(Temp);
 630                 Reread();
 631                 return false;
 632         }
 633         return true;
 634 }
 635
 636
 637 // Handle OK button call
 638 bool FileDialog::Private::HandleOK()
 639 {
 640         // mask was changed
 641         string tmp = fl_get_input(file_dlg_form_->PatBox);
 642         if (tmp != mask_) {
 643                 SetMask(tmp);
 644                 Reread();
 645                 return false;
 646         }
 647
 648         // directory was changed
 649         tmp = fl_get_input(file_dlg_form_->DirBox);
 650         if (tmp != directory_) {
 651                 SetDirectory(tmp);
 652                 Reread();
 653                 return false;
 654         }
 655
 656         // Handle return from list
 657         int const select = fl_get_browser(file_dlg_form_->List);
 658         if (select > depth_) {
 659                 string const temp = dir_entries_[select - depth_ - 1].name_;
 660                 if (!suffixIs(temp, '/')) {
 661                         // If user didn't type anything, use browser
 662                         string const name = fl_get_input(file_dlg_form_->Filename);
 663                         if (name.empty())
 664                                 fl_set_input(file_dlg_form_->Filename, temp.c_str());
 665                         return true;
 666                 }
 667         }
 668
 669         // Emulate a doubleclick
 670         return HandleDoubleClick();
 671 }
 672
 673
 674 // Handle Cancel CB from WM close
 675 int FileDialog::Private::CancelCB(FL_FORM *, void *)
 676 {
 677         // Simulate a click on the cancel button
 678         current_dlg_->Force(true);
 679         return FL_IGNORE;
 680 }
 681
 682
 683 // Simulates a click on OK/Cancel
 684 void FileDialog::Private::Force(bool cancel)
 685 {
 686         if (cancel) {
 687                 force_cancel_ = true;
 688                 fl_set_button(file_dlg_form_->Cancel, 1);
 689         } else {
 690                 force_ok_ = true;
 691                 fl_set_button(file_dlg_form_->Ready, 1);
 692         }
 693         // Start timer to break fl_do_forms loop soon
 694         fl_set_timer(file_dlg_form_->timer, 0.1);
 695 }
 696
 697
 698 // Select: launches dialog and returns selected file
 699 string const FileDialog::Private::Select(string const & title,
 700                                          string const & path,
 701                                          string const & mask,
 702                                          string const & suggested)
 703 {
 704         // handles new mask and path
 705         bool isOk = true;
 706         if (!mask.empty()) {
 707                 SetMask(mask);
 708                 isOk = false;
 709         }
 710         if (!path.empty()) {
 711                 SetDirectory(path);
 712                 isOk = false;
 713         }
 714         if (!isOk)
 715                 Reread();
 716
 717         // highlight the suggested file in the browser, if it exists.
 718         int sel = 0;
 719         string const filename = OnlyFilename(suggested);
 720         if (!filename.empty()) {
 721                 for (int i = 0; i < fl_get_browser_maxline(file_dlg_form_->List); ++i) {
 722                         string s = fl_get_browser_line(file_dlg_form_->List, i + 1);
 723                         s = trim(s);
 724                         if (s == filename) {
 725                                 sel = i + 1;
 726                                 break;
 727                         }
 728                 }
 729         }
 730
 731         if (sel != 0)
 732                 fl_select_browser_line(file_dlg_form_->List, sel);
 733         int const top = max(sel - 5, 1);
 734         fl_set_browser_topline(file_dlg_form_->List, top);
 735
 736         // checks whether dialog can be started
 737         if (current_dlg_)
 738                 return string();
 739         current_dlg_ = this;
 740
 741         // runs dialog
 742         SetInfoLine(string());
 743         setEnabled(file_dlg_form_->Filename, true);
 744         fl_set_input(file_dlg_form_->Filename, suggested.c_str());
 745         fl_set_button(file_dlg_form_->Cancel, 0);
 746         fl_set_button(file_dlg_form_->Ready, 0);
 747         fl_set_focus_object(file_dlg_form_->form, file_dlg_form_->Filename);
 748         fl_deactivate_all_forms();
 749         // Prevent xforms crashing if the dialog gets too small by preventing
 750         // it from being shrunk beyond a minimum size.
 751         // calls to fl_set_form_minsize/maxsize apply only to the next
 752         // fl_show_form(), so this comes first.
 753         fl_set_form_minsize(file_dlg_form_->form, minw_, minh_);
 754
 755         fl_show_form(file_dlg_form_->form,
 756                      FL_PLACE_MOUSE | FL_FREE_SIZE, 0,
 757                      title.c_str());
 758
 759         isOk = RunDialog();
 760
 761         fl_hide_form(file_dlg_form_->form);
 762         fl_activate_all_forms();
 763         current_dlg_ = 0;
 764
 765         // Returns filename or string() if no valid selection was made
 766         if (!isOk || !fl_get_input(file_dlg_form_->Filename)[0])
 767                 return string();
 768
 769         file_name_ = fl_get_input(file_dlg_form_->Filename);
 770
 771         if (!AbsolutePath(file_name_))
 772                 file_name_ = AddName(fl_get_input(file_dlg_form_->DirBox), file_name_);
 773         return file_name_;
 774 }
 775
 776
 777 // SelectDir: launches dialog and returns selected directory
 778 string const FileDialog::Private::SelectDir(string const & title,
 779                                          string const & path,
 780                                          string const & suggested)
 781 {
 782         SetMask("*/");
 783         // handles new path
 784         bool isOk = true;
 785         if (!path.empty()) {
 786                 // handle case where path does not end with "/"
 787                 // remerge path+suggested and check if it is a valid path
 788                 if (!suggested.empty()) {
 789                         string tmp = suggested;
 790                         if (!suffixIs(tmp, '/'))
 791                                 tmp += '/';
 792                         string full_path = path;
 793                         full_path += tmp;
 794                         // check if this is really a directory
 795                         DIR * dir = ::opendir(full_path.c_str());
 796                         if (dir)
 797                                 SetDirectory(full_path);
 798                         else
 799                                 SetDirectory(path);
 800                 } else
 801                         SetDirectory(path);
 802                 isOk = false;
 803         }
 804         if (!isOk)
 805                 Reread();
 806
 807         // checks whether dialog can be started
 808         if (current_dlg_)
 809                 return string();
 810         current_dlg_ = this;
 811
 812         // runs dialog
 813         SetInfoLine(string());
 814         fl_set_input(file_dlg_form_->Filename, "");
 815         setEnabled(file_dlg_form_->Filename, false);
 816         fl_set_button(file_dlg_form_->Cancel, 0);
 817         fl_set_button(file_dlg_form_->Ready, 0);
 818         fl_set_focus_object(file_dlg_form_->form, file_dlg_form_->DirBox);
 819         fl_deactivate_all_forms();
 820         fl_show_form(file_dlg_form_->form,
 821                      FL_PLACE_MOUSE | FL_FREE_SIZE, 0,
 822                      title.c_str());
 823
 824         isOk = RunDialog();
 825
 826         fl_hide_form(file_dlg_form_->form);
 827         fl_activate_all_forms();
 828         current_dlg_ = 0;
 829
 830         // Returns directory or string() if no valid selection was made
 831         if (!isOk)
 832                 return string();
 833
 834         file_name_ = fl_get_input(file_dlg_form_->DirBox);
 835         return file_name_;
 836 }