Pileus Git - ~andy/gtk/blob - gtk/gtkfilesel.c

   1 /* GTK - The GIMP Toolkit
   2  * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Library General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Library General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Library General Public
  15  * License along with this library; if not, write to the
  16  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17  * Boston, MA 02111-1307, USA.
  18  */
  19
  20 /*
  21  * Modified by the GTK+ Team and others 1997-1999.  See the AUTHORS
  22  * file for a list of people on the GTK+ Team.  See the ChangeLog
  23  * files for a list of changes.  These files are distributed with
  24  * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
  25  */
  26
  27 #include "config.h"
  28
  29 #include <stdio.h>
  30 #include <sys/types.h>
  31 #include <sys/stat.h>
  32 #ifdef HAVE_SYS_PARAM_H
  33 #include <sys/param.h>
  34 #endif
  35 #ifdef HAVE_DIRENT_H
  36 #include <dirent.h>
  37 #endif
  38 #include <stdlib.h>
  39 #ifdef HAVE_UNISTD_H
  40 #include <unistd.h>
  41 #endif
  42 #include <string.h>
  43 #include <errno.h>
  44 #ifdef HAVE_PWD_H
  45 #include <pwd.h>
  46 #endif
  47
  48 #include "fnmatch.h"
  49
  50 #include "gdk/gdkkeysyms.h"
  51 #include "gtkbutton.h"
  52 #include "gtkentry.h"
  53 #include "gtkfilesel.h"
  54 #include "gtkhbox.h"
  55 #include "gtkhbbox.h"
  56 #include "gtklabel.h"
  57 #include "gtklist.h"
  58 #include "gtklistitem.h"
  59 #include "gtkmain.h"
  60 #include "gtkscrolledwindow.h"
  61 #include "gtksignal.h"
  62 #include "gtkvbox.h"
  63 #include "gtkmenu.h"
  64 #include "gtkmenuitem.h"
  65 #include "gtkoptionmenu.h"
  66 #include "gtkclist.h"
  67 #include "gtkdialog.h"
  68 #include "gtkintl.h"
  69
  70 #if defined(G_OS_WIN32) || defined(G_WITH_CYGWIN)
  71 #define STRICT
  72 #include <windows.h>
  73
  74 #ifdef G_OS_WIN32
  75 #include <direct.h>
  76 #include <io.h>
  77 #define mkdir(p,m) _mkdir(p)
  78 #ifndef S_ISDIR
  79 #define S_ISDIR(mode) ((mode)&_S_IFDIR)
  80 #endif
  81
  82 #endif /* G_OS_WIN32 */
  83
  84 #endif /* G_OS_WIN32 || G_WITH_CYGWIN */
  85
  86 #define DIR_LIST_WIDTH   180
  87 #define DIR_LIST_HEIGHT  180
  88 #define FILE_LIST_WIDTH  180
  89 #define FILE_LIST_HEIGHT 180
  90
  91 /* I've put this here so it doesn't get confused with the
  92  * file completion interface */
  93 typedef struct _HistoryCallbackArg HistoryCallbackArg;
  94
  95 struct _HistoryCallbackArg
  96 {
  97   gchar *directory;
  98   GtkWidget *menu_item;
  99 };
 100
 101
 102 typedef struct _CompletionState    CompletionState;
 103 typedef struct _CompletionDir      CompletionDir;
 104 typedef struct _CompletionDirSent  CompletionDirSent;
 105 typedef struct _CompletionDirEntry CompletionDirEntry;
 106 typedef struct _CompletionUserDir  CompletionUserDir;
 107 typedef struct _PossibleCompletion PossibleCompletion;
 108
 109 /* Non-external file completion decls and structures */
 110
 111 /* A contant telling PRCS how many directories to cache.  Its actually
 112  * kept in a list, so the geometry isn't important. */
 113 #define CMPL_DIRECTORY_CACHE_SIZE 10
 114
 115 /* A constant used to determine whether a substring was an exact
 116  * match by first_diff_index()
 117  */
 118 #define PATTERN_MATCH -1
 119 /* The arguments used by all fnmatch() calls below
 120  */
 121 #define FNMATCH_FLAGS (FNM_PATHNAME | FNM_PERIOD)
 122
 123 #define CMPL_ERRNO_TOO_LONG ((1<<16)-1)
 124
 125 /* This structure contains all the useful information about a directory
 126  * for the purposes of filename completion.  These structures are cached
 127  * in the CompletionState struct.  CompletionDir's are reference counted.
 128  */
 129 struct _CompletionDirSent
 130 {
 131   ino_t inode;
 132   time_t mtime;
 133   dev_t device;
 134
 135   gint entry_count;
 136   struct _CompletionDirEntry *entries;
 137 };
 138
 139 struct _CompletionDir
 140 {
 141   CompletionDirSent *sent;
 142
 143   gchar *fullname;
 144   gint fullname_len;
 145
 146   struct _CompletionDir *cmpl_parent;
 147   gint cmpl_index;
 148   gchar *cmpl_text;
 149 };
 150
 151 /* This structure contains pairs of directory entry names with a flag saying
 152  * whether or not they are a valid directory.  NOTE: This information is used
 153  * to provide the caller with information about whether to update its completions
 154  * or try to open a file.  Since directories are cached by the directory mtime,
 155  * a symlink which points to an invalid file (which will not be a directory),
 156  * will not be reevaluated if that file is created, unless the containing
 157  * directory is touched.  I consider this case to be worth ignoring (josh).
 158  */
 159 struct _CompletionDirEntry
 160 {
 161   gboolean is_dir;
 162   gchar *entry_name;
 163 };
 164
 165 struct _CompletionUserDir
 166 {
 167   gchar *login;
 168   gchar *homedir;
 169 };
 170
 171 struct _PossibleCompletion
 172 {
 173   /* accessible fields, all are accessed externally by functions
 174    * declared above
 175    */
 176   gchar *text;
 177   gint is_a_completion;
 178   gboolean is_directory;
 179
 180   /* Private fields
 181    */
 182   gint text_alloc;
 183 };
 184
 185 struct _CompletionState
 186 {
 187   gint last_valid_char;
 188   gchar *updated_text;
 189   gint updated_text_len;
 190   gint updated_text_alloc;
 191   gboolean re_complete;
 192
 193   gchar *user_dir_name_buffer;
 194   gint user_directories_len;
 195
 196   gchar *last_completion_text;
 197
 198   gint user_completion_index; /* if >= 0, currently completing ~user */
 199
 200   struct _CompletionDir *completion_dir; /* directory completing from */
 201   struct _CompletionDir *active_completion_dir;
 202
 203   struct _PossibleCompletion the_completion;
 204
 205   struct _CompletionDir *reference_dir; /* initial directory */
 206
 207   GList* directory_storage;
 208   GList* directory_sent_storage;
 209
 210   struct _CompletionUserDir *user_directories;
 211 };
 212
 213
 214 /* File completion functions which would be external, were they used
 215  * outside of this file.
 216  */
 217
 218 static CompletionState*    cmpl_init_state        (void);
 219 static void                cmpl_free_state        (CompletionState *cmpl_state);
 220 static gint                cmpl_state_okay        (CompletionState* cmpl_state);
 221 static gchar*              cmpl_strerror          (gint);
 222
 223 static PossibleCompletion* cmpl_completion_matches(gchar           *text_to_complete,
 224                                                    gchar          **remaining_text,
 225                                                    CompletionState *cmpl_state);
 226
 227 /* Returns a name for consideration, possibly a completion, this name
 228  * will be invalid after the next call to cmpl_next_completion.
 229  */
 230 static char*               cmpl_this_completion   (PossibleCompletion*);
 231
 232 /* True if this completion matches the given text.  Otherwise, this
 233  * output can be used to have a list of non-completions.
 234  */
 235 static gint                cmpl_is_a_completion   (PossibleCompletion*);
 236
 237 /* True if the completion is a directory
 238  */
 239 static gboolean            cmpl_is_directory      (PossibleCompletion*);
 240
 241 /* Obtains the next completion, or NULL
 242  */
 243 static PossibleCompletion* cmpl_next_completion   (CompletionState*);
 244
 245 /* Updating completions: the return value of cmpl_updated_text() will
 246  * be text_to_complete completed as much as possible after the most
 247  * recent call to cmpl_completion_matches.  For the present
 248  * application, this is the suggested replacement for the user's input
 249  * string.  You must CALL THIS AFTER ALL cmpl_text_completions have
 250  * been received.
 251  */
 252 static gchar*              cmpl_updated_text       (CompletionState* cmpl_state);
 253
 254 /* After updating, to see if the completion was a directory, call
 255  * this.  If it was, you should consider re-calling completion_matches.
 256  */
 257 static gboolean            cmpl_updated_dir        (CompletionState* cmpl_state);
 258
 259 /* Current location: if using file completion, return the current
 260  * directory, from which file completion begins.  More specifically,
 261  * the cwd concatenated with all exact completions up to the last
 262  * directory delimiter('/').
 263  */
 264 static gchar*              cmpl_reference_position (CompletionState* cmpl_state);
 265
 266 /* backing up: if cmpl_completion_matches returns NULL, you may query
 267  * the index of the last completable character into cmpl_updated_text.
 268  */
 269 static gint                cmpl_last_valid_char    (CompletionState* cmpl_state);
 270
 271 /* When the user selects a non-directory, call cmpl_completion_fullname
 272  * to get the full name of the selected file.
 273  */
 274 static gchar*              cmpl_completion_fullname (gchar*, CompletionState* cmpl_state);
 275
 276
 277 /* Directory operations. */
 278 static CompletionDir* open_ref_dir         (gchar* text_to_complete,
 279                                             gchar** remaining_text,
 280                                             CompletionState* cmpl_state);
 281 #if !defined(G_OS_WIN32) && !defined(G_WITH_CYGWIN)
 282 static gboolean       check_dir            (gchar *dir_name,
 283                                             struct stat *result,
 284                                             gboolean *stat_subdirs);
 285 #endif
 286 static CompletionDir* open_dir             (gchar* dir_name,
 287                                             CompletionState* cmpl_state);
 288 #ifdef HAVE_PWD_H
 289 static CompletionDir* open_user_dir        (gchar* text_to_complete,
 290                                             CompletionState *cmpl_state);
 291 #endif
 292 static CompletionDir* open_relative_dir    (gchar* dir_name, CompletionDir* dir,
 293                                             CompletionState *cmpl_state);
 294 static CompletionDirSent* open_new_dir     (gchar* dir_name,
 295                                             struct stat* sbuf,
 296                                             gboolean stat_subdirs);
 297 static gint           correct_dir_fullname (CompletionDir* cmpl_dir);
 298 static gint           correct_parent       (CompletionDir* cmpl_dir,
 299                                             struct stat *sbuf);
 300 static gchar*         find_parent_dir_fullname    (gchar* dirname);
 301 static CompletionDir* attach_dir           (CompletionDirSent* sent,
 302                                             gchar* dir_name,
 303                                             CompletionState *cmpl_state);
 304 static void           free_dir_sent (CompletionDirSent* sent);
 305 static void           free_dir      (CompletionDir  *dir);
 306 static void           prune_memory_usage(CompletionState *cmpl_state);
 307
 308 /* Completion operations */
 309 static PossibleCompletion* attempt_homedir_completion(gchar* text_to_complete,
 310                                                       CompletionState *cmpl_state);
 311 static PossibleCompletion* attempt_file_completion(CompletionState *cmpl_state);
 312 static CompletionDir* find_completion_dir(gchar* text_to_complete,
 313                                           gchar** remaining_text,
 314                                           CompletionState* cmpl_state);
 315 static PossibleCompletion* append_completion_text(gchar* text,
 316                                                   CompletionState* cmpl_state);
 317 #ifdef HAVE_PWD_H
 318 static gint get_pwdb(CompletionState* cmpl_state);
 319 static gint compare_user_dir(const void* a, const void* b);
 320 #endif
 321 static gint first_diff_index(gchar* pat, gchar* text);
 322 static gint compare_cmpl_dir(const void* a, const void* b);
 323 static void update_cmpl(PossibleCompletion* poss,
 324                         CompletionState* cmpl_state);
 325
 326 static void gtk_file_selection_class_init    (GtkFileSelectionClass *klass);
 327 static void gtk_file_selection_init          (GtkFileSelection      *filesel);
 328 static void gtk_file_selection_destroy       (GtkObject             *object);
 329 static gint gtk_file_selection_key_press     (GtkWidget             *widget,
 330                                               GdkEventKey           *event,
 331                                               gpointer               user_data);
 332
 333 static void gtk_file_selection_file_button (GtkWidget *widget,
 334                                             gint row,
 335                                             gint column,
 336                                             GdkEventButton *bevent,
 337                                             gpointer user_data);
 338
 339 static void gtk_file_selection_dir_button (GtkWidget *widget,
 340                                            gint row,
 341                                            gint column,
 342                                            GdkEventButton *bevent,
 343                                            gpointer data);
 344
 345 static void gtk_file_selection_populate      (GtkFileSelection      *fs,
 346                                               gchar                 *rel_path,
 347                                               gint                   try_complete);
 348 static void gtk_file_selection_abort         (GtkFileSelection      *fs);
 349
 350 static void gtk_file_selection_update_history_menu (GtkFileSelection       *fs,
 351                                                     gchar                  *current_dir);
 352
 353 static void gtk_file_selection_create_dir (GtkWidget *widget, gpointer data);
 354 static void gtk_file_selection_delete_file (GtkWidget *widget, gpointer data);
 355 static void gtk_file_selection_rename_file (GtkWidget *widget, gpointer data);
 356
 357
 358
 359 static GtkWindowClass *parent_class = NULL;
 360
 361 /* Saves errno when something cmpl does fails. */
 362 static gint cmpl_errno;
 363
 364 #ifdef G_WITH_CYGWIN
 365 /*
 366  * Take the path currently in the file selection
 367  * entry field and translate as necessary from
 368  * a WIN32 style to CYGWIN32 style path.  For
 369  * instance translate:
 370  * x:\somepath\file.jpg
 371  * to:
 372  * //x/somepath/file.jpg
 373  *
 374  * Replace the path in the selection text field.
 375  * Return a boolean value concerning whether a
 376  * translation had to be made.
 377  */
 378 int
 379 translate_win32_path(GtkFileSelection *filesel)
 380 {
 381   int updated = 0;
 382   gchar *path;
 383
 384   /*
 385    * Retrieve the current path
 386    */
 387   path = gtk_entry_get_text (GTK_ENTRY (filesel->selection_entry));
 388
 389   /*
 390    * Translate only if this looks like a DOS-ish
 391    * path... First handle any drive letters.
 392    */
 393   if (isalpha(path[0]) && (path[1] == ':')) {
 394     /*
 395      * This part kind of stinks... It isn't possible
 396      * to know if there is enough space in the current
 397      * string for the extra character required in this
 398      * conversion.  Assume that there isn't enough space
 399      * and use the set function on the text field to
 400      * set the newly created string.
 401      */
 402     gchar *newPath;
 403
 404     newPath = g_malloc(strlen(path) + 2);
 405     sprintf(newPath, "//%c/%s", path[0], (path + 3));
 406     gtk_entry_set_text (GTK_ENTRY (filesel->selection_entry), newPath);
 407
 408     path = newPath;
 409     updated = 1;
 410   }
 411
 412   /*
 413    * Now, replace backslashes with forward slashes
 414    * if necessary.
 415    */
 416   if (strchr(path, '\\')) {
 417     int index;
 418     for (index = 0; path[index] != '\0'; index++)
 419       if (path[index] == '\\')
 420         path[index] = '/';
 421
 422     updated = 1;
 423   }
 424
 425   return updated;
 426 }
 427 #endif
 428
 429 GtkType
 430 gtk_file_selection_get_type (void)
 431 {
 432   static GtkType file_selection_type = 0;
 433
 434   if (!file_selection_type)
 435     {
 436       static const GtkTypeInfo filesel_info =
 437       {
 438         "GtkFileSelection",
 439         sizeof (GtkFileSelection),
 440         sizeof (GtkFileSelectionClass),
 441         (GtkClassInitFunc) gtk_file_selection_class_init,
 442         (GtkObjectInitFunc) gtk_file_selection_init,
 443         /* reserved_1 */ NULL,
 444         /* reserved_2 */ NULL,
 445         (GtkClassInitFunc) NULL,
 446       };
 447
 448       file_selection_type = gtk_type_unique (GTK_TYPE_WINDOW, &filesel_info);
 449     }
 450
 451   return file_selection_type;
 452 }
 453
 454 static void
 455 gtk_file_selection_class_init (GtkFileSelectionClass *class)
 456 {
 457   GtkObjectClass *object_class;
 458
 459   object_class = (GtkObjectClass*) class;
 460
 461   parent_class = gtk_type_class (GTK_TYPE_WINDOW);
 462
 463   object_class->destroy = gtk_file_selection_destroy;
 464 }
 465
 466 static void
 467 gtk_file_selection_init (GtkFileSelection *filesel)
 468 {
 469   GtkWidget *entry_vbox;
 470   GtkWidget *label;
 471   GtkWidget *list_hbox;
 472   GtkWidget *confirm_area;
 473   GtkWidget *pulldown_hbox;
 474   GtkWidget *scrolled_win;
 475
 476   char *dir_title [2];
 477   char *file_title [2];
 478
 479   filesel->cmpl_state = cmpl_init_state ();
 480
 481   /* The dialog-sized vertical box  */
 482   filesel->main_vbox = gtk_vbox_new (FALSE, 10);
 483   gtk_container_set_border_width (GTK_CONTAINER (filesel), 10);
 484   gtk_container_add (GTK_CONTAINER (filesel), filesel->main_vbox);
 485   gtk_widget_show (filesel->main_vbox);
 486
 487   /* The horizontal box containing create, rename etc. buttons */
 488   filesel->button_area = gtk_hbutton_box_new ();
 489   gtk_button_box_set_layout(GTK_BUTTON_BOX(filesel->button_area), GTK_BUTTONBOX_START);
 490   gtk_button_box_set_spacing(GTK_BUTTON_BOX(filesel->button_area), 0);
 491   gtk_box_pack_start (GTK_BOX (filesel->main_vbox), filesel->button_area,
 492                       FALSE, FALSE, 0);
 493   gtk_widget_show (filesel->button_area);
 494
 495   gtk_file_selection_show_fileop_buttons(filesel);
 496
 497   /* hbox for pulldown menu */
 498   pulldown_hbox = gtk_hbox_new (TRUE, 5);
 499   gtk_box_pack_start (GTK_BOX (filesel->main_vbox), pulldown_hbox, FALSE, FALSE, 0);
 500   gtk_widget_show (pulldown_hbox);
 501
 502   /* Pulldown menu */
 503   filesel->history_pulldown = gtk_option_menu_new ();
 504   gtk_widget_show (filesel->history_pulldown);
 505   gtk_box_pack_start (GTK_BOX (pulldown_hbox), filesel->history_pulldown,
 506                       FALSE, FALSE, 0);
 507
 508   /*  The horizontal box containing the directory and file listboxes  */
 509   list_hbox = gtk_hbox_new (FALSE, 5);
 510   gtk_box_pack_start (GTK_BOX (filesel->main_vbox), list_hbox, TRUE, TRUE, 0);
 511   gtk_widget_show (list_hbox);
 512
 513   /* The directories clist */
 514   dir_title[0] = _("Directories");
 515   dir_title[1] = NULL;
 516   filesel->dir_list = gtk_clist_new_with_titles (1, (gchar**) dir_title);
 517   gtk_widget_set_usize (filesel->dir_list, DIR_LIST_WIDTH, DIR_LIST_HEIGHT);
 518   gtk_signal_connect (GTK_OBJECT (filesel->dir_list), "select_row",
 519                       (GtkSignalFunc) gtk_file_selection_dir_button,
 520                       (gpointer) filesel);
 521   gtk_clist_column_titles_passive (GTK_CLIST (filesel->dir_list));
 522
 523   scrolled_win = gtk_scrolled_window_new (NULL, NULL);
 524   gtk_container_add (GTK_CONTAINER (scrolled_win), filesel->dir_list);
 525   gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_win),
 526                                   GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
 527   gtk_container_set_border_width (GTK_CONTAINER (scrolled_win), 5);
 528   gtk_box_pack_start (GTK_BOX (list_hbox), scrolled_win, TRUE, TRUE, 0);
 529   gtk_widget_show (filesel->dir_list);
 530   gtk_widget_show (scrolled_win);
 531
 532   /* The files clist */
 533   file_title[0] = _("Files");
 534   file_title[1] = NULL;
 535   filesel->file_list = gtk_clist_new_with_titles (1, (gchar**) file_title);
 536   gtk_widget_set_usize (filesel->file_list, FILE_LIST_WIDTH, FILE_LIST_HEIGHT);
 537   gtk_signal_connect (GTK_OBJECT (filesel->file_list), "select_row",
 538                       (GtkSignalFunc) gtk_file_selection_file_button,
 539                       (gpointer) filesel);
 540   gtk_clist_column_titles_passive (GTK_CLIST (filesel->file_list));
 541
 542   scrolled_win = gtk_scrolled_window_new (NULL, NULL);
 543   gtk_container_add (GTK_CONTAINER (scrolled_win), filesel->file_list);
 544   gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_win),
 545                                   GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
 546   gtk_container_set_border_width (GTK_CONTAINER (scrolled_win), 5);
 547   gtk_box_pack_start (GTK_BOX (list_hbox), scrolled_win, TRUE, TRUE, 0);
 548   gtk_widget_show (filesel->file_list);
 549   gtk_widget_show (scrolled_win);
 550
 551   /* action area for packing buttons into. */
 552   filesel->action_area = gtk_hbox_new (TRUE, 0);
 553   gtk_box_pack_start (GTK_BOX (filesel->main_vbox), filesel->action_area,
 554                       FALSE, FALSE, 0);
 555   gtk_widget_show (filesel->action_area);
 556
 557   /*  The OK/Cancel button area */
 558   confirm_area = gtk_hbutton_box_new ();
 559   gtk_button_box_set_layout(GTK_BUTTON_BOX(confirm_area), GTK_BUTTONBOX_END);
 560   gtk_button_box_set_spacing(GTK_BUTTON_BOX(confirm_area), 5);
 561   gtk_box_pack_end (GTK_BOX (filesel->main_vbox), confirm_area, FALSE, FALSE, 0);
 562   gtk_widget_show (confirm_area);
 563
 564   /*  The OK button  */
 565   filesel->ok_button = gtk_button_new_with_label (_("OK"));
 566   GTK_WIDGET_SET_FLAGS (filesel->ok_button, GTK_CAN_DEFAULT);
 567   gtk_box_pack_start (GTK_BOX (confirm_area), filesel->ok_button, TRUE, TRUE, 0);
 568   gtk_widget_grab_default (filesel->ok_button);
 569   gtk_widget_show (filesel->ok_button);
 570
 571   /*  The Cancel button  */
 572   filesel->cancel_button = gtk_button_new_with_label (_("Cancel"));
 573   GTK_WIDGET_SET_FLAGS (filesel->cancel_button, GTK_CAN_DEFAULT);
 574   gtk_box_pack_start (GTK_BOX (confirm_area), filesel->cancel_button, TRUE, TRUE, 0);
 575   gtk_widget_show (filesel->cancel_button);
 576
 577   /*  The selection entry widget  */
 578   entry_vbox = gtk_vbox_new (FALSE, 2);
 579   gtk_box_pack_end (GTK_BOX (filesel->main_vbox), entry_vbox, FALSE, FALSE, 0);
 580   gtk_widget_show (entry_vbox);
 581
 582   filesel->selection_text = label = gtk_label_new ("");
 583   gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
 584   gtk_box_pack_start (GTK_BOX (entry_vbox), label, FALSE, FALSE, 0);
 585   gtk_widget_show (label);
 586
 587   filesel->selection_entry = gtk_entry_new ();
 588   gtk_signal_connect (GTK_OBJECT (filesel->selection_entry), "key_press_event",
 589                       (GtkSignalFunc) gtk_file_selection_key_press, filesel);
 590   gtk_signal_connect_object (GTK_OBJECT (filesel->selection_entry), "focus_in_event",
 591                              (GtkSignalFunc) gtk_widget_grab_default,
 592                              GTK_OBJECT (filesel->ok_button));
 593   gtk_signal_connect_object (GTK_OBJECT (filesel->selection_entry), "activate",
 594                              (GtkSignalFunc) gtk_button_clicked,
 595                              GTK_OBJECT (filesel->ok_button));
 596   gtk_box_pack_start (GTK_BOX (entry_vbox), filesel->selection_entry, TRUE, TRUE, 0);
 597   gtk_widget_show (filesel->selection_entry);
 598
 599   if (!cmpl_state_okay (filesel->cmpl_state))
 600     {
 601       gchar err_buf[256];
 602
 603       sprintf (err_buf, _("Directory unreadable: %s"), cmpl_strerror (cmpl_errno));
 604
 605       gtk_label_set_text (GTK_LABEL (filesel->selection_text), err_buf);
 606     }
 607   else
 608     {
 609       gtk_file_selection_populate (filesel, "", FALSE);
 610     }
 611
 612   gtk_widget_grab_focus (filesel->selection_entry);
 613 }
 614
 615 GtkWidget*
 616 gtk_file_selection_new (const gchar *title)
 617 {
 618   GtkFileSelection *filesel;
 619
 620   filesel = gtk_type_new (GTK_TYPE_FILE_SELECTION);
 621   gtk_window_set_title (GTK_WINDOW (filesel), title);
 622
 623   return GTK_WIDGET (filesel);
 624 }
 625
 626 void
 627 gtk_file_selection_show_fileop_buttons (GtkFileSelection *filesel)
 628 {
 629   g_return_if_fail (filesel != NULL);
 630   g_return_if_fail (GTK_IS_FILE_SELECTION (filesel));
 631
 632   /* delete, create directory, and rename */
 633   if (!filesel->fileop_c_dir)
 634     {
 635       filesel->fileop_c_dir = gtk_button_new_with_label (_("Create Dir"));
 636       gtk_signal_connect (GTK_OBJECT (filesel->fileop_c_dir), "clicked",
 637                           (GtkSignalFunc) gtk_file_selection_create_dir,
 638                           (gpointer) filesel);
 639       gtk_box_pack_start (GTK_BOX (filesel->button_area),
 640                           filesel->fileop_c_dir, TRUE, TRUE, 0);
 641       gtk_widget_show (filesel->fileop_c_dir);
 642     }
 643
 644   if (!filesel->fileop_del_file)
 645     {
 646       filesel->fileop_del_file = gtk_button_new_with_label (_("Delete File"));
 647       gtk_signal_connect (GTK_OBJECT (filesel->fileop_del_file), "clicked",
 648                           (GtkSignalFunc) gtk_file_selection_delete_file,
 649                           (gpointer) filesel);
 650       gtk_box_pack_start (GTK_BOX (filesel->button_area),
 651                           filesel->fileop_del_file, TRUE, TRUE, 0);
 652       gtk_widget_show (filesel->fileop_del_file);
 653     }
 654
 655   if (!filesel->fileop_ren_file)
 656     {
 657       filesel->fileop_ren_file = gtk_button_new_with_label (_("Rename File"));
 658       gtk_signal_connect (GTK_OBJECT (filesel->fileop_ren_file), "clicked",
 659                           (GtkSignalFunc) gtk_file_selection_rename_file,
 660                           (gpointer) filesel);
 661       gtk_box_pack_start (GTK_BOX (filesel->button_area),
 662                           filesel->fileop_ren_file, TRUE, TRUE, 0);
 663       gtk_widget_show (filesel->fileop_ren_file);
 664     }
 665
 666   gtk_widget_queue_resize(GTK_WIDGET(filesel));
 667 }
 668
 669 void
 670 gtk_file_selection_hide_fileop_buttons (GtkFileSelection *filesel)
 671 {
 672   g_return_if_fail (filesel != NULL);
 673   g_return_if_fail (GTK_IS_FILE_SELECTION (filesel));
 674
 675   if (filesel->fileop_ren_file)
 676     {
 677       gtk_widget_destroy (filesel->fileop_ren_file);
 678       filesel->fileop_ren_file = NULL;
 679     }
 680
 681   if (filesel->fileop_del_file)
 682     {
 683       gtk_widget_destroy (filesel->fileop_del_file);
 684       filesel->fileop_del_file = NULL;
 685     }
 686
 687   if (filesel->fileop_c_dir)
 688     {
 689       gtk_widget_destroy (filesel->fileop_c_dir);
 690       filesel->fileop_c_dir = NULL;
 691     }
 692 }
 693
 694
 695
 696 void
 697 gtk_file_selection_set_filename (GtkFileSelection *filesel,
 698                                  const gchar      *filename)
 699 {
 700   gchar *buf;
 701   const char *name, *last_slash;
 702
 703   g_return_if_fail (filesel != NULL);
 704   g_return_if_fail (GTK_IS_FILE_SELECTION (filesel));
 705   g_return_if_fail (filename != NULL);
 706
 707   last_slash = strrchr (filename, G_DIR_SEPARATOR);
 708
 709   if (!last_slash)
 710     {
 711       buf = g_strdup ("");
 712       name = filename;
 713     }
 714   else
 715     {
 716       buf = g_strdup (filename);
 717       buf[last_slash - filename + 1] = 0;
 718       name = last_slash + 1;
 719     }
 720
 721   gtk_file_selection_populate (filesel, buf, FALSE);
 722
 723   if (filesel->selection_entry)
 724     gtk_entry_set_text (GTK_ENTRY (filesel->selection_entry), name);
 725   g_free (buf);
 726 }
 727
 728 gchar*
 729 gtk_file_selection_get_filename (GtkFileSelection *filesel)
 730 {
 731   static gchar nothing[2] = "";
 732   static gchar something[MAXPATHLEN*2];
 733   char *filename;
 734   char *text;
 735
 736   g_return_val_if_fail (filesel != NULL, nothing);
 737   g_return_val_if_fail (GTK_IS_FILE_SELECTION (filesel), nothing);
 738
 739 #ifdef G_WITH_CYGWIN
 740   translate_win32_path(filesel);
 741 #endif
 742   text = gtk_entry_get_text (GTK_ENTRY (filesel->selection_entry));
 743   if (text)
 744     {
 745       filename = g_filename_from_utf8 (cmpl_completion_fullname (text, filesel->cmpl_state));
 746       strncpy (something, filename, sizeof (something));
 747       g_free (filename);
 748       return something;
 749     }
 750
 751   return nothing;
 752 }
 753
 754 void
 755 gtk_file_selection_complete (GtkFileSelection *filesel,
 756                              const gchar      *pattern)
 757 {
 758   g_return_if_fail (filesel != NULL);
 759   g_return_if_fail (GTK_IS_FILE_SELECTION (filesel));
 760   g_return_if_fail (pattern != NULL);
 761
 762   if (filesel->selection_entry)
 763     gtk_entry_set_text (GTK_ENTRY (filesel->selection_entry), pattern);
 764   gtk_file_selection_populate (filesel, (gchar*) pattern, TRUE);
 765 }
 766
 767 static void
 768 gtk_file_selection_destroy (GtkObject *object)
 769 {
 770   GtkFileSelection *filesel;
 771   GList *list;
 772   HistoryCallbackArg *callback_arg;
 773
 774   g_return_if_fail (object != NULL);
 775   g_return_if_fail (GTK_IS_FILE_SELECTION (object));
 776
 777   filesel = GTK_FILE_SELECTION (object);
 778
 779   if (filesel->fileop_dialog)
 780           gtk_widget_destroy (filesel->fileop_dialog);
 781
 782   if (filesel->history_list)
 783     {
 784       list = filesel->history_list;
 785       while (list)
 786         {
 787           callback_arg = list->data;
 788           g_free (callback_arg->directory);
 789           g_free (callback_arg);
 790           list = list->next;
 791         }
 792       g_list_free (filesel->history_list);
 793       filesel->history_list = NULL;
 794     }
 795
 796   cmpl_free_state (filesel->cmpl_state);
 797   filesel->cmpl_state = NULL;
 798
 799   if (GTK_OBJECT_CLASS (parent_class)->destroy)
 800     (* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
 801 }
 802
 803 /* Begin file operations callbacks */
 804
 805 static void
 806 gtk_file_selection_fileop_error (GtkFileSelection *fs, gchar *error_message)
 807 {
 808   GtkWidget *label;
 809   GtkWidget *vbox;
 810   GtkWidget *button;
 811   GtkWidget *dialog;
 812
 813   g_return_if_fail (error_message != NULL);
 814
 815   /* main dialog */
 816   dialog = gtk_dialog_new ();
 817   /*
 818   gtk_signal_connect (GTK_OBJECT (dialog), "destroy",
 819                       (GtkSignalFunc) gtk_file_selection_fileop_destroy,
 820                       (gpointer) fs);
 821   */
 822   gtk_window_set_title (GTK_WINDOW (dialog), _("Error"));
 823   gtk_window_set_position (GTK_WINDOW (dialog), GTK_WIN_POS_MOUSE);
 824
 825   /* If file dialog is grabbed, make this dialog modal too */
 826   /* When error dialog is closed, file dialog will be grabbed again */
 827   if (GTK_WINDOW(fs)->modal)
 828       gtk_window_set_modal (GTK_WINDOW(dialog), TRUE);
 829
 830   vbox = gtk_vbox_new(FALSE, 0);
 831   gtk_container_set_border_width(GTK_CONTAINER(vbox), 8);
 832   gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dialog)->vbox), vbox,
 833                      FALSE, FALSE, 0);
 834   gtk_widget_show(vbox);
 835
 836   label = gtk_label_new(error_message);
 837   gtk_misc_set_alignment(GTK_MISC(label), 0.0, 0.0);
 838   gtk_box_pack_start(GTK_BOX(vbox), label, FALSE, FALSE, 5);
 839   gtk_widget_show(label);
 840
 841   /* yes, we free it */
 842   g_free (error_message);
 843
 844   /* close button */
 845   button = gtk_button_new_with_label (_("Close"));
 846   gtk_signal_connect_object (GTK_OBJECT (button), "clicked",
 847                              (GtkSignalFunc) gtk_widget_destroy,
 848                              (gpointer) dialog);
 849   gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dialog)->action_area),
 850                      button, TRUE, TRUE, 0);
 851   GTK_WIDGET_SET_FLAGS(button, GTK_CAN_DEFAULT);
 852   gtk_widget_grab_default(button);
 853   gtk_widget_show (button);
 854
 855   gtk_widget_show (dialog);
 856 }
 857
 858 static void
 859 gtk_file_selection_fileop_destroy (GtkWidget *widget, gpointer data)
 860 {
 861   GtkFileSelection *fs = data;
 862
 863   g_return_if_fail (fs != NULL);
 864   g_return_if_fail (GTK_IS_FILE_SELECTION (fs));
 865
 866   fs->fileop_dialog = NULL;
 867 }
 868
 869
 870 static void
 871 gtk_file_selection_create_dir_confirmed (GtkWidget *widget, gpointer data)
 872 {
 873   GtkFileSelection *fs = data;
 874   gchar *dirname;
 875   gchar *path;
 876   gchar *full_path;
 877   gchar *buf;
 878   CompletionState *cmpl_state;
 879
 880   g_return_if_fail (fs != NULL);
 881   g_return_if_fail (GTK_IS_FILE_SELECTION (fs));
 882
 883   dirname = gtk_entry_get_text (GTK_ENTRY (fs->fileop_entry));
 884   cmpl_state = (CompletionState*) fs->cmpl_state;
 885   path = cmpl_reference_position (cmpl_state);
 886
 887   full_path = g_strconcat (path, G_DIR_SEPARATOR_S, dirname, NULL);
 888   if ( (mkdir (full_path, 0755) < 0) )
 889     {
 890       buf = g_strconcat ("Error creating directory \"", dirname, "\":  ",
 891                          g_strerror(errno), NULL);
 892       gtk_file_selection_fileop_error (fs, buf);
 893     }
 894   g_free (full_path);
 895
 896   gtk_widget_destroy (fs->fileop_dialog);
 897   gtk_file_selection_populate (fs, "", FALSE);
 898 }
 899
 900 static void
 901 gtk_file_selection_create_dir (GtkWidget *widget, gpointer data)
 902 {
 903   GtkFileSelection *fs = data;
 904   GtkWidget *label;
 905   GtkWidget *dialog;
 906   GtkWidget *vbox;
 907   GtkWidget *button;
 908
 909   g_return_if_fail (fs != NULL);
 910   g_return_if_fail (GTK_IS_FILE_SELECTION (fs));
 911
 912   if (fs->fileop_dialog)
 913           return;
 914
 915   /* main dialog */
 916   fs->fileop_dialog = dialog = gtk_dialog_new ();
 917   gtk_signal_connect (GTK_OBJECT (dialog), "destroy",
 918                       (GtkSignalFunc) gtk_file_selection_fileop_destroy,
 919                       (gpointer) fs);
 920   gtk_window_set_title (GTK_WINDOW (dialog), _("Create Directory"));
 921   gtk_window_set_position (GTK_WINDOW (dialog), GTK_WIN_POS_MOUSE);
 922
 923   /* If file dialog is grabbed, grab option dialog */
 924   /* When option dialog is closed, file dialog will be grabbed again */
 925   if (GTK_WINDOW(fs)->modal)
 926       gtk_window_set_modal (GTK_WINDOW(dialog), TRUE);
 927
 928   vbox = gtk_vbox_new(FALSE, 0);
 929   gtk_container_set_border_width(GTK_CONTAINER(vbox), 8);
 930   gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dialog)->vbox), vbox,
 931                      FALSE, FALSE, 0);
 932   gtk_widget_show(vbox);
 933
 934   label = gtk_label_new(_("Directory name:"));
 935   gtk_misc_set_alignment(GTK_MISC(label), 0.0, 0.0);
 936   gtk_box_pack_start(GTK_BOX(vbox), label, FALSE, FALSE, 5);
 937   gtk_widget_show(label);
 938
 939   /*  The directory entry widget  */
 940   fs->fileop_entry = gtk_entry_new ();
 941   gtk_box_pack_start (GTK_BOX (vbox), fs->fileop_entry,
 942                       TRUE, TRUE, 5);
 943   GTK_WIDGET_SET_FLAGS(fs->fileop_entry, GTK_CAN_DEFAULT);
 944   gtk_widget_show (fs->fileop_entry);
 945
 946   /* buttons */
 947   button = gtk_button_new_with_label (_("Create"));
 948   gtk_signal_connect (GTK_OBJECT (button), "clicked",
 949                       (GtkSignalFunc) gtk_file_selection_create_dir_confirmed,
 950                       (gpointer) fs);
 951   gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dialog)->action_area),
 952                      button, TRUE, TRUE, 0);
 953   GTK_WIDGET_SET_FLAGS(button, GTK_CAN_DEFAULT);
 954   gtk_widget_show(button);
 955
 956   button = gtk_button_new_with_label (_("Cancel"));
 957   gtk_signal_connect_object (GTK_OBJECT (button), "clicked",
 958                              (GtkSignalFunc) gtk_widget_destroy,
 959                              (gpointer) dialog);
 960   gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dialog)->action_area),
 961                      button, TRUE, TRUE, 0);
 962   GTK_WIDGET_SET_FLAGS(button, GTK_CAN_DEFAULT);
 963   gtk_widget_grab_default(button);
 964   gtk_widget_show (button);
 965
 966   gtk_widget_show (dialog);
 967 }
 968
 969 static void
 970 gtk_file_selection_delete_file_confirmed (GtkWidget *widget, gpointer data)
 971 {
 972   GtkFileSelection *fs = data;
 973   CompletionState *cmpl_state;
 974   gchar *path;
 975   gchar *full_path;
 976   gchar *buf;
 977
 978   g_return_if_fail (fs != NULL);
 979   g_return_if_fail (GTK_IS_FILE_SELECTION (fs));
 980
 981   cmpl_state = (CompletionState*) fs->cmpl_state;
 982   path = cmpl_reference_position (cmpl_state);
 983
 984   full_path = g_strconcat (path, G_DIR_SEPARATOR_S, fs->fileop_file, NULL);
 985   if ( (unlink (full_path) < 0) )
 986     {
 987       buf = g_strconcat ("Error deleting file \"", fs->fileop_file, "\":  ",
 988                          g_strerror(errno), NULL);
 989       gtk_file_selection_fileop_error (fs, buf);
 990     }
 991   g_free (full_path);
 992
 993   gtk_widget_destroy (fs->fileop_dialog);
 994   gtk_file_selection_populate (fs, "", FALSE);
 995 }
 996
 997 static void
 998 gtk_file_selection_delete_file (GtkWidget *widget, gpointer data)
 999 {
1000   GtkFileSelection *fs = data;
1001   GtkWidget *label;
1002   GtkWidget *vbox;
1003   GtkWidget *button;
1004   GtkWidget *dialog;
1005   gchar *filename;
1006   gchar *buf;
1007
1008   g_return_if_fail (fs != NULL);
1009   g_return_if_fail (GTK_IS_FILE_SELECTION (fs));
1010
1011   if (fs->fileop_dialog)
1012           return;
1013
1014 #ifdef G_WITH_CYGWIN
1015   translate_win32_path(fs);
1016 #endif
1017
1018   filename = gtk_entry_get_text (GTK_ENTRY (fs->selection_entry));
1019   if (strlen(filename) < 1)
1020           return;
1021
1022   fs->fileop_file = filename;
1023
1024   /* main dialog */
1025   fs->fileop_dialog = dialog = gtk_dialog_new ();
1026   gtk_signal_connect (GTK_OBJECT (dialog), "destroy",
1027                       (GtkSignalFunc) gtk_file_selection_fileop_destroy,
1028                       (gpointer) fs);
1029   gtk_window_set_title (GTK_WINDOW (dialog), _("Delete File"));
1030   gtk_window_set_position (GTK_WINDOW (dialog), GTK_WIN_POS_MOUSE);
1031
1032   /* If file dialog is grabbed, grab option dialog */
1033   /* When option dialog is closed, file dialog will be grabbed again */
1034   if (GTK_WINDOW(fs)->modal)
1035       gtk_window_set_modal (GTK_WINDOW(dialog), TRUE);
1036
1037   vbox = gtk_vbox_new(FALSE, 0);
1038   gtk_container_set_border_width(GTK_CONTAINER(vbox), 8);
1039   gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dialog)->vbox), vbox,
1040                      FALSE, FALSE, 0);
1041   gtk_widget_show(vbox);
1042
1043   buf = g_strconcat ("Really delete file \"", filename, "\" ?", NULL);
1044   label = gtk_label_new(buf);
1045   gtk_misc_set_alignment(GTK_MISC(label), 0.0, 0.0);
1046   gtk_box_pack_start(GTK_BOX(vbox), label, FALSE, FALSE, 5);
1047   gtk_widget_show(label);
1048   g_free(buf);
1049
1050   /* buttons */
1051   button = gtk_button_new_with_label (_("Delete"));
1052   gtk_signal_connect (GTK_OBJECT (button), "clicked",
1053                       (GtkSignalFunc) gtk_file_selection_delete_file_confirmed,
1054                       (gpointer) fs);
1055   gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dialog)->action_area),
1056                      button, TRUE, TRUE, 0);
1057   GTK_WIDGET_SET_FLAGS(button, GTK_CAN_DEFAULT);
1058   gtk_widget_show(button);
1059
1060   button = gtk_button_new_with_label (_("Cancel"));
1061   gtk_signal_connect_object (GTK_OBJECT (button), "clicked",
1062                              (GtkSignalFunc) gtk_widget_destroy,
1063                              (gpointer) dialog);
1064   gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dialog)->action_area),
1065                      button, TRUE, TRUE, 0);
1066   GTK_WIDGET_SET_FLAGS(button, GTK_CAN_DEFAULT);
1067   gtk_widget_grab_default(button);
1068   gtk_widget_show (button);
1069
1070   gtk_widget_show (dialog);
1071
1072 }
1073
1074 static void
1075 gtk_file_selection_rename_file_confirmed (GtkWidget *widget, gpointer data)
1076 {
1077   GtkFileSelection *fs = data;
1078   gchar *buf;
1079   gchar *file;
1080   gchar *path;
1081   gchar *new_filename;
1082   gchar *old_filename;
1083   CompletionState *cmpl_state;
1084
1085   g_return_if_fail (fs != NULL);
1086   g_return_if_fail (GTK_IS_FILE_SELECTION (fs));
1087
1088   file = gtk_entry_get_text (GTK_ENTRY (fs->fileop_entry));
1089   cmpl_state = (CompletionState*) fs->cmpl_state;
1090   path = cmpl_reference_position (cmpl_state);
1091
1092   new_filename = g_strconcat (path, G_DIR_SEPARATOR_S, file, NULL);
1093   old_filename = g_strconcat (path, G_DIR_SEPARATOR_S, fs->fileop_file, NULL);
1094
1095   if ( (rename (old_filename, new_filename)) < 0)
1096     {
1097       buf = g_strconcat ("Error renaming file \"", file, "\":  ",
1098                          g_strerror(errno), NULL);
1099       gtk_file_selection_fileop_error (fs, buf);
1100     }
1101   g_free (new_filename);
1102   g_free (old_filename);
1103
1104   gtk_widget_destroy (fs->fileop_dialog);
1105   gtk_file_selection_populate (fs, "", FALSE);
1106 }
1107
1108 static void
1109 gtk_file_selection_rename_file (GtkWidget *widget, gpointer data)
1110 {
1111   GtkFileSelection *fs = data;
1112   GtkWidget *label;
1113   GtkWidget *dialog;
1114   GtkWidget *vbox;
1115   GtkWidget *button;
1116   gchar *buf;
1117
1118   g_return_if_fail (fs != NULL);
1119   g_return_if_fail (GTK_IS_FILE_SELECTION (fs));
1120
1121   if (fs->fileop_dialog)
1122           return;
1123
1124   fs->fileop_file = gtk_entry_get_text (GTK_ENTRY (fs->selection_entry));
1125   if (strlen(fs->fileop_file) < 1)
1126           return;
1127
1128   /* main dialog */
1129   fs->fileop_dialog = dialog = gtk_dialog_new ();
1130   gtk_signal_connect (GTK_OBJECT (dialog), "destroy",
1131                       (GtkSignalFunc) gtk_file_selection_fileop_destroy,
1132                       (gpointer) fs);
1133   gtk_window_set_title (GTK_WINDOW (dialog), _("Rename File"));
1134   gtk_window_set_position (GTK_WINDOW (dialog), GTK_WIN_POS_MOUSE);
1135
1136   /* If file dialog is grabbed, grab option dialog */
1137   /* When option dialog  closed, file dialog will be grabbed again */
1138   if (GTK_WINDOW(fs)->modal)
1139     gtk_window_set_modal (GTK_WINDOW(dialog), TRUE);
1140
1141   vbox = gtk_vbox_new(FALSE, 0);
1142   gtk_container_set_border_width (GTK_CONTAINER(vbox), 8);
1143   gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dialog)->vbox), vbox,
1144                      FALSE, FALSE, 0);
1145   gtk_widget_show(vbox);
1146
1147   buf = g_strconcat ("Rename file \"", fs->fileop_file, "\" to:", NULL);
1148   label = gtk_label_new(buf);
1149   gtk_misc_set_alignment(GTK_MISC(label), 0.0, 0.0);
1150   gtk_box_pack_start(GTK_BOX(vbox), label, FALSE, FALSE, 5);
1151   gtk_widget_show(label);
1152   g_free(buf);
1153
1154   /* New filename entry */
1155   fs->fileop_entry = gtk_entry_new ();
1156   gtk_box_pack_start (GTK_BOX (vbox), fs->fileop_entry,
1157                       TRUE, TRUE, 5);
1158   GTK_WIDGET_SET_FLAGS(fs->fileop_entry, GTK_CAN_DEFAULT);
1159   gtk_widget_show (fs->fileop_entry);
1160
1161   gtk_entry_set_text (GTK_ENTRY (fs->fileop_entry), fs->fileop_file);
1162   gtk_editable_select_region (GTK_EDITABLE (fs->fileop_entry),
1163                               0, strlen (fs->fileop_file));
1164
1165   /* buttons */
1166   button = gtk_button_new_with_label (_("Rename"));
1167   gtk_signal_connect (GTK_OBJECT (button), "clicked",
1168                       (GtkSignalFunc) gtk_file_selection_rename_file_confirmed,
1169                       (gpointer) fs);
1170   gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dialog)->action_area),
1171                      button, TRUE, TRUE, 0);
1172   GTK_WIDGET_SET_FLAGS(button, GTK_CAN_DEFAULT);
1173   gtk_widget_show(button);
1174
1175   button = gtk_button_new_with_label (_("Cancel"));
1176   gtk_signal_connect_object (GTK_OBJECT (button), "clicked",
1177                              (GtkSignalFunc) gtk_widget_destroy,
1178                              (gpointer) dialog);
1179   gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dialog)->action_area),
1180                      button, TRUE, TRUE, 0);
1181   GTK_WIDGET_SET_FLAGS(button, GTK_CAN_DEFAULT);
1182   gtk_widget_grab_default(button);
1183   gtk_widget_show (button);
1184
1185   gtk_widget_show (dialog);
1186 }
1187
1188
1189 static gint
1190 gtk_file_selection_key_press (GtkWidget   *widget,
1191                               GdkEventKey *event,
1192                               gpointer     user_data)
1193 {
1194   GtkFileSelection *fs;
1195   char *text;
1196
1197   g_return_val_if_fail (widget != NULL, FALSE);
1198   g_return_val_if_fail (event != NULL, FALSE);
1199
1200   if (event->keyval == GDK_Tab)
1201     {
1202       fs = GTK_FILE_SELECTION (user_data);
1203 #ifdef G_WITH_CYGWIN
1204       translate_win32_path(fs);
1205 #endif
1206       text = gtk_entry_get_text (GTK_ENTRY (fs->selection_entry));
1207
1208       text = g_strdup (text);
1209
1210       gtk_file_selection_populate (fs, text, TRUE);
1211
1212       g_free (text);
1213
1214       gtk_signal_emit_stop_by_name (GTK_OBJECT (widget), "key_press_event");
1215
1216       return TRUE;
1217     }
1218
1219   return FALSE;
1220 }
1221
1222
1223 static void
1224 gtk_file_selection_history_callback (GtkWidget *widget, gpointer data)
1225 {
1226   GtkFileSelection *fs = data;
1227   HistoryCallbackArg *callback_arg;
1228   GList *list;
1229
1230   g_return_if_fail (fs != NULL);
1231   g_return_if_fail (GTK_IS_FILE_SELECTION (fs));
1232
1233   list = fs->history_list;
1234
1235   while (list) {
1236     callback_arg = list->data;
1237
1238     if (callback_arg->menu_item == widget)
1239       {
1240         gtk_file_selection_populate (fs, callback_arg->directory, FALSE);
1241         break;
1242       }
1243
1244     list = list->next;
1245   }
1246 }
1247
1248 static void
1249 gtk_file_selection_update_history_menu (GtkFileSelection *fs,
1250                                         gchar *current_directory)
1251 {
1252   HistoryCallbackArg *callback_arg;
1253   GtkWidget *menu_item;
1254   GList *list;
1255   gchar *current_dir;
1256   gint dir_len;
1257   gint i;
1258
1259   g_return_if_fail (fs != NULL);
1260   g_return_if_fail (GTK_IS_FILE_SELECTION (fs));
1261   g_return_if_fail (current_directory != NULL);
1262
1263   list = fs->history_list;
1264
1265   if (fs->history_menu)
1266     {
1267       while (list) {
1268         callback_arg = list->data;
1269         g_free (callback_arg->directory);
1270         g_free (callback_arg);
1271         list = list->next;
1272       }
1273       g_list_free (fs->history_list);
1274       fs->history_list = NULL;
1275
1276       gtk_widget_destroy (fs->history_menu);
1277     }
1278
1279   fs->history_menu = gtk_menu_new();
1280
1281   current_dir = g_strdup (current_directory);
1282
1283   dir_len = strlen (current_dir);
1284
1285   for (i = dir_len; i >= 0; i--)
1286     {
1287       /* the i == dir_len is to catch the full path for the first
1288        * entry. */
1289       if ( (current_dir[i] == G_DIR_SEPARATOR) || (i == dir_len))
1290         {
1291           /* another small hack to catch the full path */
1292           if (i != dir_len)
1293                   current_dir[i + 1] = '\0';
1294 #ifdef G_WITH_CYGWIN
1295           if (!strcmp(current_dir, "//"))
1296             continue;
1297 #endif
1298           menu_item = gtk_menu_item_new_with_label (current_dir);
1299
1300           callback_arg = g_new (HistoryCallbackArg, 1);
1301           callback_arg->menu_item = menu_item;
1302
1303           /* since the autocompletion gets confused if you don't
1304            * supply a trailing '/' on a dir entry, set the full
1305            * (current) path to "" which just refreshes the filesel */
1306           if (dir_len == i) {
1307             callback_arg->directory = g_strdup ("");
1308           } else {
1309             callback_arg->directory = g_strdup (current_dir);
1310           }
1311
1312           fs->history_list = g_list_append (fs->history_list, callback_arg);
1313
1314           gtk_signal_connect (GTK_OBJECT (menu_item), "activate",
1315                               (GtkSignalFunc) gtk_file_selection_history_callback,
1316                               (gpointer) fs);
1317           gtk_menu_append (GTK_MENU (fs->history_menu), menu_item);
1318           gtk_widget_show (menu_item);
1319         }
1320     }
1321
1322   gtk_option_menu_set_menu (GTK_OPTION_MENU (fs->history_pulldown),
1323                             fs->history_menu);
1324   g_free (current_dir);
1325 }
1326
1327 static void
1328 gtk_file_selection_file_button (GtkWidget *widget,
1329                                gint row,
1330                                gint column,
1331                                GdkEventButton *bevent,
1332                                gpointer user_data)
1333 {
1334   GtkFileSelection *fs = NULL;
1335   gchar *filename, *temp = NULL;
1336
1337   g_return_if_fail (GTK_IS_CLIST (widget));
1338
1339   fs = user_data;
1340   g_return_if_fail (fs != NULL);
1341   g_return_if_fail (GTK_IS_FILE_SELECTION (fs));
1342
1343   gtk_clist_get_text (GTK_CLIST (fs->file_list), row, 0, &temp);
1344   filename = g_strdup (temp);
1345
1346 #ifdef G_WITH_CYGWIN
1347   /* Check to see if the selection was a drive selector */
1348   if (isalpha(filename[0]) && (filename[1] == ':')) {
1349     /* It is... map it to a CYGWIN32 drive */
1350     char temp_filename[10];
1351
1352     sprintf(temp_filename, "//%c/", tolower(filename[0]));
1353     g_free(filename);
1354     filename = g_strdup(temp_filename);
1355   }
1356 #endif /* G_WITH_CYGWIN */
1357
1358   if (filename)
1359     {
1360       if (bevent)
1361         switch (bevent->type)
1362           {
1363           case GDK_2BUTTON_PRESS:
1364             gtk_button_clicked (GTK_BUTTON (fs->ok_button));
1365             break;
1366
1367           default:
1368             gtk_entry_set_text (GTK_ENTRY (fs->selection_entry), filename);
1369             break;
1370           }
1371       else
1372         gtk_entry_set_text (GTK_ENTRY (fs->selection_entry), filename);
1373
1374       g_free (filename);
1375     }
1376 }
1377
1378 static void
1379 gtk_file_selection_dir_button (GtkWidget *widget,
1380                                gint row,
1381                                gint column,
1382                                GdkEventButton *bevent,
1383                                gpointer user_data)
1384 {
1385   GtkFileSelection *fs = NULL;
1386   gchar *filename, *temp = NULL;
1387
1388   g_return_if_fail (GTK_IS_CLIST (widget));
1389
1390   fs = GTK_FILE_SELECTION (user_data);
1391   g_return_if_fail (fs != NULL);
1392   g_return_if_fail (GTK_IS_FILE_SELECTION (fs));
1393
1394   gtk_clist_get_text (GTK_CLIST (fs->dir_list), row, 0, &temp);
1395   filename = g_strdup (temp);
1396
1397   if (filename)
1398     {
1399       if (bevent)
1400         switch (bevent->type)
1401           {
1402           case GDK_2BUTTON_PRESS:
1403             gtk_file_selection_populate (fs, filename, FALSE);
1404             break;
1405
1406           default:
1407             gtk_entry_set_text (GTK_ENTRY (fs->selection_entry), filename);
1408             break;
1409           }
1410       else
1411         gtk_entry_set_text (GTK_ENTRY (fs->selection_entry), filename);
1412
1413       g_free (filename);
1414     }
1415 }
1416
1417 #if defined(G_OS_WIN32) || defined(G_WITH_CYGWIN)
1418
1419 static void
1420 win32_gtk_add_drives_to_dir_list(GtkWidget *the_dir_list)
1421 {
1422   gchar *text[2], *textPtr;
1423   gchar buffer[128];
1424   char volumeNameBuf[128];
1425   char formatBuffer[128];
1426   gint row;
1427
1428   text[1] = NULL;
1429
1430   /* Get the Drives string */
1431   GetLogicalDriveStrings(sizeof(buffer), buffer);
1432
1433   /* Add the drives as necessary */
1434   textPtr = buffer;
1435   while (*textPtr != '\0') {
1436     /* Get the volume information for this drive */
1437     if ((tolower(textPtr[0]) != 'a') && (tolower(textPtr[0]) != 'b'))
1438       {
1439         /* Ignore floppies (?) */
1440         DWORD maxComponentLength, flags;
1441
1442         GetVolumeInformation(textPtr,
1443                              volumeNameBuf, sizeof(volumeNameBuf),
1444                              NULL, &maxComponentLength,
1445                              &flags, NULL, 0);
1446         /* Build the actual displayable string */
1447
1448         sprintf(formatBuffer, "%c:\\", toupper(textPtr[0]));
1449 #if 0 /* HB: removed to allow drive change AND directory update with one click */
1450         if (strlen(volumeNameBuf) > 0)
1451           sprintf(formatBuffer, "%s (%s)", formatBuffer, volumeNameBuf);
1452 #endif
1453         /* Add to the list */
1454         text[0] = formatBuffer;
1455         row = gtk_clist_append (GTK_CLIST (the_dir_list), text);
1456       }
1457     textPtr += (strlen(textPtr) + 1);
1458   }
1459 }
1460 #endif
1461
1462 static void
1463 gtk_file_selection_populate (GtkFileSelection *fs,
1464                              gchar            *rel_path,
1465                              gint              try_complete)
1466 {
1467   CompletionState *cmpl_state;
1468   PossibleCompletion* poss;
1469   gchar* filename;
1470   gint row;
1471   gchar* rem_path = rel_path;
1472   gchar* sel_text;
1473   gchar* text[2];
1474   gint did_recurse = FALSE;
1475   gint possible_count = 0;
1476   gint selection_index = -1;
1477   gint file_list_width;
1478   gint dir_list_width;
1479
1480   g_return_if_fail (fs != NULL);
1481   g_return_if_fail (GTK_IS_FILE_SELECTION (fs));
1482
1483   cmpl_state = (CompletionState*) fs->cmpl_state;
1484   poss = cmpl_completion_matches (rel_path, &rem_path, cmpl_state);
1485
1486   if (!cmpl_state_okay (cmpl_state))
1487     {
1488       /* Something went wrong. */
1489       gtk_file_selection_abort (fs);
1490       return;
1491     }
1492
1493   g_assert (cmpl_state->reference_dir);
1494
1495   gtk_clist_freeze (GTK_CLIST (fs->dir_list));
1496   gtk_clist_clear (GTK_CLIST (fs->dir_list));
1497   gtk_clist_freeze (GTK_CLIST (fs->file_list));
1498   gtk_clist_clear (GTK_CLIST (fs->file_list));
1499
1500   /* Set the dir_list to include ./ and ../ */
1501   text[1] = NULL;
1502   text[0] = "." G_DIR_SEPARATOR_S;
1503   row = gtk_clist_append (GTK_CLIST (fs->dir_list), text);
1504
1505   text[0] = ".." G_DIR_SEPARATOR_S;
1506   row = gtk_clist_append (GTK_CLIST (fs->dir_list), text);
1507
1508   /*reset the max widths of the lists*/
1509   dir_list_width = gdk_string_width(fs->dir_list->style->font,".." G_DIR_SEPARATOR_S);
1510   gtk_clist_set_column_width(GTK_CLIST(fs->dir_list),0,dir_list_width);
1511   file_list_width = 1;
1512   gtk_clist_set_column_width(GTK_CLIST(fs->file_list),0,file_list_width);
1513
1514   while (poss)
1515     {
1516       if (cmpl_is_a_completion (poss))
1517         {
1518           possible_count += 1;
1519
1520           filename = cmpl_this_completion (poss);
1521
1522           text[0] = filename;
1523
1524           if (cmpl_is_directory (poss))
1525             {
1526               if (strcmp (filename, "." G_DIR_SEPARATOR_S) != 0 &&
1527                   strcmp (filename, ".." G_DIR_SEPARATOR_S) != 0)
1528                 {
1529                   int width = gdk_string_width(fs->dir_list->style->font,
1530                                                filename);
1531                   row = gtk_clist_append (GTK_CLIST (fs->dir_list), text);
1532                   if(width > dir_list_width)
1533                     {
1534                       dir_list_width = width;
1535                       gtk_clist_set_column_width(GTK_CLIST(fs->dir_list),0,
1536                                                  width);
1537                     }
1538                 }
1539             }
1540           else
1541             {
1542               int width = gdk_string_width(fs->file_list->style->font,
1543                                            filename);
1544               row = gtk_clist_append (GTK_CLIST (fs->file_list), text);
1545               if(width > file_list_width)
1546                 {
1547                   file_list_width = width;
1548                   gtk_clist_set_column_width(GTK_CLIST(fs->file_list),0,
1549                                              width);
1550                 }
1551             }
1552         }
1553
1554       poss = cmpl_next_completion (cmpl_state);
1555     }
1556
1557 #if defined(G_OS_WIN32) || defined(G_WITH_CYGWIN)
1558   /* For Windows, add drives as potential selections */
1559   win32_gtk_add_drives_to_dir_list (fs->dir_list);
1560 #endif
1561
1562   gtk_clist_thaw (GTK_CLIST (fs->dir_list));
1563   gtk_clist_thaw (GTK_CLIST (fs->file_list));
1564
1565   /* File lists are set. */
1566
1567   g_assert (cmpl_state->reference_dir);
1568
1569   if (try_complete)
1570     {
1571
1572       /* User is trying to complete filenames, so advance the user's input
1573        * string to the updated_text, which is the common leading substring
1574        * of all possible completions, and if its a directory attempt
1575        * attempt completions in it. */
1576
1577       if (cmpl_updated_text (cmpl_state)[0])
1578         {
1579
1580           if (cmpl_updated_dir (cmpl_state))
1581             {
1582               gchar* dir_name = g_strdup (cmpl_updated_text (cmpl_state));
1583
1584               did_recurse = TRUE;
1585
1586               gtk_file_selection_populate (fs, dir_name, TRUE);
1587
1588               g_free (dir_name);
1589             }
1590           else
1591             {
1592               if (fs->selection_entry)
1593                       gtk_entry_set_text (GTK_ENTRY (fs->selection_entry),
1594                                           cmpl_updated_text (cmpl_state));
1595             }
1596         }
1597       else
1598         {
1599           selection_index = cmpl_last_valid_char (cmpl_state) -
1600                             (strlen (rel_path) - strlen (rem_path));
1601           if (fs->selection_entry)
1602             gtk_entry_set_text (GTK_ENTRY (fs->selection_entry), rem_path);
1603         }
1604     }
1605   else
1606     {
1607       if (fs->selection_entry)
1608         gtk_entry_set_text (GTK_ENTRY (fs->selection_entry), "");
1609     }
1610
1611   if (!did_recurse)
1612     {
1613       if (fs->selection_entry)
1614         gtk_entry_set_position (GTK_ENTRY (fs->selection_entry), selection_index);
1615
1616       if (fs->selection_entry)
1617         {
1618           sel_text = g_strconcat (_("Selection: "),
1619                                   cmpl_reference_position (cmpl_state),
1620                                   NULL);
1621
1622           gtk_label_set_text (GTK_LABEL (fs->selection_text), sel_text);
1623           g_free (sel_text);
1624         }
1625
1626       if (fs->history_pulldown)
1627         {
1628           gtk_file_selection_update_history_menu (fs, cmpl_reference_position (cmpl_state));
1629         }
1630
1631     }
1632 }
1633
1634 static void
1635 gtk_file_selection_abort (GtkFileSelection *fs)
1636 {
1637   gchar err_buf[256];
1638
1639   sprintf (err_buf, _("Directory unreadable: %s"), cmpl_strerror (cmpl_errno));
1640
1641   /*  BEEP gdk_beep();  */
1642
1643   if (fs->selection_entry)
1644     gtk_label_set_text (GTK_LABEL (fs->selection_text), err_buf);
1645 }
1646
1647 /**********************************************************************/
1648 /*                        External Interface                          */
1649 /**********************************************************************/
1650
1651 /* The four completion state selectors
1652  */
1653 static gchar*
1654 cmpl_updated_text (CompletionState* cmpl_state)
1655 {
1656   return cmpl_state->updated_text;
1657 }
1658
1659 static gboolean
1660 cmpl_updated_dir (CompletionState* cmpl_state)
1661 {
1662   return cmpl_state->re_complete;
1663 }
1664
1665 static gchar*
1666 cmpl_reference_position (CompletionState* cmpl_state)
1667 {
1668   return cmpl_state->reference_dir->fullname;
1669 }
1670
1671 static gint
1672 cmpl_last_valid_char (CompletionState* cmpl_state)
1673 {
1674   return cmpl_state->last_valid_char;
1675 }
1676
1677 static gchar*
1678 cmpl_completion_fullname (gchar* text, CompletionState* cmpl_state)
1679 {
1680   static char nothing[2] = "";
1681
1682   if (!cmpl_state_okay (cmpl_state))
1683     {
1684       return nothing;
1685     }
1686   else if (g_path_is_absolute (text))
1687     {
1688       strcpy (cmpl_state->updated_text, text);
1689     }
1690 #ifdef HAVE_PWD_H
1691   else if (text[0] == '~')
1692     {
1693       CompletionDir* dir;
1694       char* slash;
1695
1696       dir = open_user_dir (text, cmpl_state);
1697
1698       if (!dir)
1699         {
1700           /* spencer says just return ~something, so
1701            * for now just do it. */
1702           strcpy (cmpl_state->updated_text, text);
1703         }
1704       else
1705         {
1706
1707           strcpy (cmpl_state->updated_text, dir->fullname);
1708
1709           slash = strchr (text, G_DIR_SEPARATOR);
1710
1711           if (slash)
1712             strcat (cmpl_state->updated_text, slash);
1713         }
1714     }
1715 #endif
1716   else
1717     {
1718       strcpy (cmpl_state->updated_text, cmpl_state->reference_dir->fullname);
1719       if (cmpl_state->updated_text[strlen (cmpl_state->updated_text) - 1] != G_DIR_SEPARATOR)
1720         strcat (cmpl_state->updated_text, G_DIR_SEPARATOR_S);
1721       strcat (cmpl_state->updated_text, text);
1722     }
1723
1724   return cmpl_state->updated_text;
1725 }
1726
1727 /* The three completion selectors
1728  */
1729 static gchar*
1730 cmpl_this_completion (PossibleCompletion* pc)
1731 {
1732   return pc->text;
1733 }
1734
1735 static gboolean
1736 cmpl_is_directory (PossibleCompletion* pc)
1737 {
1738   return pc->is_directory;
1739 }
1740
1741 static gint
1742 cmpl_is_a_completion (PossibleCompletion* pc)
1743 {
1744   return pc->is_a_completion;
1745 }
1746
1747 /**********************************************************************/
1748 /*                       Construction, deletion                       */
1749 /**********************************************************************/
1750
1751 static CompletionState*
1752 cmpl_init_state (void)
1753 {
1754   gchar *getcwd_buf;
1755   CompletionState *new_state;
1756
1757   new_state = g_new (CompletionState, 1);
1758
1759   getcwd_buf = g_get_current_dir ();
1760
1761 tryagain:
1762
1763   new_state->reference_dir = NULL;
1764   new_state->completion_dir = NULL;
1765   new_state->active_completion_dir = NULL;
1766   new_state->directory_storage = NULL;
1767   new_state->directory_sent_storage = NULL;
1768   new_state->last_valid_char = 0;
1769   new_state->updated_text = g_new (gchar, MAXPATHLEN);
1770   new_state->updated_text_alloc = MAXPATHLEN;
1771   new_state->the_completion.text = g_new (gchar, MAXPATHLEN);
1772   new_state->the_completion.text_alloc = MAXPATHLEN;
1773   new_state->user_dir_name_buffer = NULL;
1774   new_state->user_directories = NULL;
1775
1776   new_state->reference_dir =  open_dir (getcwd_buf, new_state);
1777
1778   if (!new_state->reference_dir)
1779     {
1780       /* Directories changing from underneath us, grumble */
1781       strcpy (getcwd_buf, G_DIR_SEPARATOR_S);
1782       goto tryagain;
1783     }
1784
1785   g_free (getcwd_buf);
1786   return new_state;
1787 }
1788
1789 static void
1790 cmpl_free_dir_list(GList* dp0)
1791 {
1792   GList *dp = dp0;
1793
1794   while (dp) {
1795     free_dir (dp->data);
1796     dp = dp->next;
1797   }
1798
1799   g_list_free(dp0);
1800 }
1801
1802 static void
1803 cmpl_free_dir_sent_list(GList* dp0)
1804 {
1805   GList *dp = dp0;
1806
1807   while (dp) {
1808     free_dir_sent (dp->data);
1809     dp = dp->next;
1810   }
1811
1812   g_list_free(dp0);
1813 }
1814
1815 static void
1816 cmpl_free_state (CompletionState* cmpl_state)
1817 {
1818   cmpl_free_dir_list (cmpl_state->directory_storage);
1819   cmpl_free_dir_sent_list (cmpl_state->directory_sent_storage);
1820
1821   if (cmpl_state->user_dir_name_buffer)
1822     g_free (cmpl_state->user_dir_name_buffer);
1823   if (cmpl_state->user_directories)
1824     g_free (cmpl_state->user_directories);
1825   if (cmpl_state->the_completion.text)
1826     g_free (cmpl_state->the_completion.text);
1827   if (cmpl_state->updated_text)
1828     g_free (cmpl_state->updated_text);
1829
1830   g_free (cmpl_state);
1831 }
1832
1833 static void
1834 free_dir(CompletionDir* dir)
1835 {
1836   g_free(dir->fullname);
1837   g_free(dir);
1838 }
1839
1840 static void
1841 free_dir_sent(CompletionDirSent* sent)
1842 {
1843   gint i;
1844   for (i = 0; i < sent->entry_count; i++)
1845     g_free(sent->entries[i].entry_name);
1846   g_free(sent->entries);
1847   g_free(sent);
1848 }
1849
1850 static void
1851 prune_memory_usage(CompletionState *cmpl_state)
1852 {
1853   GList* cdsl = cmpl_state->directory_sent_storage;
1854   GList* cdl = cmpl_state->directory_storage;
1855   GList* cdl0 = cdl;
1856   gint len = 0;
1857
1858   for(; cdsl && len < CMPL_DIRECTORY_CACHE_SIZE; len += 1)
1859     cdsl = cdsl->next;
1860
1861   if (cdsl) {
1862     cmpl_free_dir_sent_list(cdsl->next);
1863     cdsl->next = NULL;
1864   }
1865
1866   cmpl_state->directory_storage = NULL;
1867   while (cdl) {
1868     if (cdl->data == cmpl_state->reference_dir)
1869       cmpl_state->directory_storage = g_list_prepend(NULL, cdl->data);
1870     else
1871       free_dir (cdl->data);
1872     cdl = cdl->next;
1873   }
1874
1875   g_list_free(cdl0);
1876 }
1877
1878 /**********************************************************************/
1879 /*                        The main entrances.                         */
1880 /**********************************************************************/
1881
1882 static PossibleCompletion*
1883 cmpl_completion_matches (gchar* text_to_complete,
1884                          gchar** remaining_text,
1885                          CompletionState* cmpl_state)
1886 {
1887   gchar* first_slash;
1888   PossibleCompletion *poss;
1889
1890   prune_memory_usage(cmpl_state);
1891
1892   g_assert (text_to_complete != NULL);
1893
1894   cmpl_state->user_completion_index = -1;
1895   cmpl_state->last_completion_text = text_to_complete;
1896   cmpl_state->the_completion.text[0] = 0;
1897   cmpl_state->last_valid_char = 0;
1898   cmpl_state->updated_text_len = -1;
1899   cmpl_state->updated_text[0] = 0;
1900   cmpl_state->re_complete = FALSE;
1901
1902 #ifdef HAVE_PWD_H
1903   first_slash = strchr (text_to_complete, G_DIR_SEPARATOR);
1904
1905   if (text_to_complete[0] == '~' && !first_slash)
1906     {
1907       /* Text starts with ~ and there is no slash, show all the
1908        * home directory completions.
1909        */
1910       poss = attempt_homedir_completion (text_to_complete, cmpl_state);
1911
1912       update_cmpl(poss, cmpl_state);
1913
1914       return poss;
1915     }
1916 #endif
1917   cmpl_state->reference_dir =
1918     open_ref_dir (text_to_complete, remaining_text, cmpl_state);
1919
1920   if(!cmpl_state->reference_dir)
1921     return NULL;
1922
1923   cmpl_state->completion_dir =
1924     find_completion_dir (*remaining_text, remaining_text, cmpl_state);
1925
1926   cmpl_state->last_valid_char = *remaining_text - text_to_complete;
1927
1928   if(!cmpl_state->completion_dir)
1929     return NULL;
1930
1931   cmpl_state->completion_dir->cmpl_index = -1;
1932   cmpl_state->completion_dir->cmpl_parent = NULL;
1933   cmpl_state->completion_dir->cmpl_text = *remaining_text;
1934
1935   cmpl_state->active_completion_dir = cmpl_state->completion_dir;
1936
1937   cmpl_state->reference_dir = cmpl_state->completion_dir;
1938
1939   poss = attempt_file_completion(cmpl_state);
1940
1941   update_cmpl(poss, cmpl_state);
1942
1943   return poss;
1944 }
1945
1946 static PossibleCompletion*
1947 cmpl_next_completion (CompletionState* cmpl_state)
1948 {
1949   PossibleCompletion* poss = NULL;
1950
1951   cmpl_state->the_completion.text[0] = 0;
1952
1953 #ifdef HAVE_PWD_H
1954   if(cmpl_state->user_completion_index >= 0)
1955     poss = attempt_homedir_completion(cmpl_state->last_completion_text, cmpl_state);
1956   else
1957     poss = attempt_file_completion(cmpl_state);
1958 #else
1959   poss = attempt_file_completion(cmpl_state);
1960 #endif
1961
1962   update_cmpl(poss, cmpl_state);
1963
1964   return poss;
1965 }
1966
1967 /**********************************************************************/
1968 /*                       Directory Operations                         */
1969 /**********************************************************************/
1970
1971 /* Open the directory where completion will begin from, if possible. */
1972 static CompletionDir*
1973 open_ref_dir(gchar* text_to_complete,
1974              gchar** remaining_text,
1975              CompletionState* cmpl_state)
1976 {
1977   gchar* first_slash;
1978   CompletionDir *new_dir;
1979
1980   first_slash = strchr(text_to_complete, G_DIR_SEPARATOR);
1981
1982 #ifdef G_WITH_CYGWIN
1983   if (text_to_complete[0] == '/' && text_to_complete[1] == '/')
1984     {
1985       char root_dir[5];
1986       sprintf(root_dir, "//%c", text_to_complete[2]);
1987
1988       new_dir = open_dir(root_dir, cmpl_state);
1989
1990       if (new_dir) {
1991         *remaining_text = text_to_complete + 4;
1992       }
1993     }
1994 #else
1995   if (FALSE)
1996     ;
1997 #endif
1998   else if (g_path_is_absolute (text_to_complete) || !cmpl_state->reference_dir)
1999     {
2000       char *root;
2001       int rootlen;
2002
2003       rootlen = g_path_skip_root (text_to_complete) - text_to_complete;
2004       root = g_malloc (rootlen + 1);
2005       memcpy (root, text_to_complete, rootlen);
2006       root[rootlen] = '\0';
2007       new_dir = open_dir (root, cmpl_state);
2008       if (new_dir)
2009         *remaining_text = g_path_skip_root (text_to_complete);
2010       g_free (root);
2011     }
2012 #ifdef HAVE_PWD_H
2013   else if (text_to_complete[0] == '~')
2014     {
2015       new_dir = open_user_dir(text_to_complete, cmpl_state);
2016
2017       if(new_dir)
2018         {
2019           if(first_slash)
2020             *remaining_text = first_slash + 1;
2021           else
2022             *remaining_text = text_to_complete + strlen(text_to_complete);
2023         }
2024       else
2025         {
2026           return NULL;
2027         }
2028     }
2029 #endif
2030   else
2031     {
2032       *remaining_text = text_to_complete;
2033
2034       new_dir = open_dir(cmpl_state->reference_dir->fullname, cmpl_state);
2035     }
2036
2037   if(new_dir)
2038     {
2039       new_dir->cmpl_index = -1;
2040       new_dir->cmpl_parent = NULL;
2041     }
2042
2043   return new_dir;
2044 }
2045
2046 #ifdef HAVE_PWD_H
2047
2048 /* open a directory by user name */
2049 static CompletionDir*
2050 open_user_dir(gchar* text_to_complete,
2051               CompletionState *cmpl_state)
2052 {
2053   gchar *first_slash;
2054   gint cmp_len;
2055
2056   g_assert(text_to_complete && text_to_complete[0] == '~');
2057
2058   first_slash = strchr(text_to_complete, G_DIR_SEPARATOR);
2059
2060   if (first_slash)
2061     cmp_len = first_slash - text_to_complete - 1;
2062   else
2063     cmp_len = strlen(text_to_complete + 1);
2064
2065   if(!cmp_len)
2066     {
2067       /* ~/ */
2068       gchar *homedir = g_get_home_dir ();
2069
2070       if (homedir)
2071         return open_dir(homedir, cmpl_state);
2072       else
2073         return NULL;
2074     }
2075   else
2076     {
2077       /* ~user/ */
2078       char* copy = g_new(char, cmp_len + 1);
2079       struct passwd *pwd;
2080       strncpy(copy, text_to_complete + 1, cmp_len);
2081       copy[cmp_len] = 0;
2082       pwd = getpwnam(copy);
2083       g_free(copy);
2084       if (!pwd)
2085         {
2086           cmpl_errno = errno;
2087           return NULL;
2088         }
2089
2090       return open_dir(pwd->pw_dir, cmpl_state);
2091     }
2092 }
2093
2094 #endif
2095
2096 /* open a directory relative the the current relative directory */
2097 static CompletionDir*
2098 open_relative_dir(gchar* dir_name,
2099                   CompletionDir* dir,
2100                   CompletionState *cmpl_state)
2101 {
2102   CompletionDir *result;
2103   GString *path;
2104
2105   path = g_string_sized_new (dir->fullname_len + strlen (dir_name) + 10);
2106   g_string_assign (path, dir->fullname);
2107
2108   if(dir->fullname_len > 1
2109     && path->str[dir->fullname_len - 1] != G_DIR_SEPARATOR)
2110      g_string_append_c (path, G_DIR_SEPARATOR);
2111   g_string_append (path, dir_name);
2112
2113   result = open_dir(path->str, cmpl_state);
2114
2115   g_string_free (path, TRUE);
2116
2117   return result;
2118 }
2119
2120 /* after the cache lookup fails, really open a new directory */
2121 static CompletionDirSent*
2122 open_new_dir(gchar* dir_name, struct stat* sbuf, gboolean stat_subdirs)
2123 {
2124   CompletionDirSent* sent;
2125   DIR* directory;
2126   struct dirent *dirent_ptr;
2127   gint entry_count = 0;
2128   gint i;
2129   struct stat ent_sbuf;
2130   GString *path;
2131   gchar *xdir;
2132
2133   sent = g_new(CompletionDirSent, 1);
2134   sent->mtime = sbuf->st_mtime;
2135   sent->inode = sbuf->st_ino;
2136   sent->device = sbuf->st_dev;
2137
2138   path = g_string_sized_new (2*MAXPATHLEN + 10);
2139
2140   xdir = g_filename_from_utf8 (dir_name);
2141   directory = opendir(xdir);
2142   g_free (xdir);
2143
2144   if(!directory)
2145     {
2146       cmpl_errno = errno;
2147       return NULL;
2148     }
2149
2150   while((dirent_ptr = readdir(directory)) != NULL)
2151     {
2152       entry_count++;
2153     }
2154
2155   sent->entries = g_new(CompletionDirEntry, entry_count);
2156   sent->entry_count = entry_count;
2157
2158   rewinddir(directory);
2159
2160   for(i = 0; i < entry_count; i += 1)
2161     {
2162       dirent_ptr = readdir(directory);
2163
2164       if(!dirent_ptr)
2165         {
2166           cmpl_errno = errno;
2167           closedir(directory);
2168           return NULL;
2169         }
2170
2171       sent->entries[i].entry_name = g_filename_to_utf8 (dirent_ptr->d_name);
2172
2173       g_string_assign (path, dir_name);
2174       if (path->str[path->len-1] != G_DIR_SEPARATOR)
2175         {
2176           g_string_append_c (path, G_DIR_SEPARATOR);
2177         }
2178       g_string_append (path, dirent_ptr->d_name);
2179
2180       if (stat_subdirs)
2181         {
2182           if(stat(path->str, &ent_sbuf) >= 0 && S_ISDIR(ent_sbuf.st_mode))
2183             sent->entries[i].is_dir = TRUE;
2184           else
2185             /* stat may fail, and we don't mind, since it could be a
2186              * dangling symlink. */
2187             sent->entries[i].is_dir = FALSE;
2188         }
2189       else
2190         sent->entries[i].is_dir = 1;
2191     }
2192
2193   g_string_free (path, TRUE);
2194   qsort(sent->entries, sent->entry_count, sizeof(CompletionDirEntry), compare_cmpl_dir);
2195
2196   closedir(directory);
2197
2198   return sent;
2199 }
2200
2201 #if !defined(G_OS_WIN32) && !defined(G_WITH_CYGWIN)
2202
2203 static gboolean
2204 check_dir(gchar *dir_name, struct stat *result, gboolean *stat_subdirs)
2205 {
2206   /* A list of directories that we know only contain other directories.
2207    * Trying to stat every file in these directories would be very
2208    * expensive.
2209    */
2210
2211   static struct {
2212     gchar *name;
2213     gboolean present;
2214     struct stat statbuf;
2215   } no_stat_dirs[] = {
2216     { "/afs", FALSE, { 0 } },
2217     { "/net", FALSE, { 0 } }
2218   };
2219
2220   static const gint n_no_stat_dirs = sizeof(no_stat_dirs) / sizeof(no_stat_dirs[0]);
2221   static gboolean initialized = FALSE;
2222
2223   gint i;
2224
2225   if (!initialized)
2226     {
2227       initialized = TRUE;
2228       for (i = 0; i < n_no_stat_dirs; i++)
2229         {
2230           if (stat (no_stat_dirs[i].name, &no_stat_dirs[i].statbuf) == 0)
2231             no_stat_dirs[i].present = TRUE;
2232         }
2233     }
2234
2235   if(stat(dir_name, result) < 0)
2236     {
2237       cmpl_errno = errno;
2238       return FALSE;
2239     }
2240
2241   *stat_subdirs = TRUE;
2242   for (i=0; i<n_no_stat_dirs; i++)
2243     {
2244       if (no_stat_dirs[i].present &&
2245           (no_stat_dirs[i].statbuf.st_dev == result->st_dev) &&
2246           (no_stat_dirs[i].statbuf.st_ino == result->st_ino))
2247         {
2248           *stat_subdirs = FALSE;
2249           break;
2250         }
2251     }
2252
2253   return TRUE;
2254 }
2255
2256 #endif
2257
2258 /* open a directory by absolute pathname */
2259 static CompletionDir*
2260 open_dir(gchar* dir_name, CompletionState* cmpl_state)
2261 {
2262   struct stat sbuf;
2263   gboolean stat_subdirs;
2264   CompletionDirSent *sent;
2265   GList* cdsl;
2266
2267 #if !defined(G_OS_WIN32) && !defined(G_WITH_CYGWIN)
2268   if (!check_dir (dir_name, &sbuf, &stat_subdirs))
2269     return NULL;
2270
2271   cdsl = cmpl_state->directory_sent_storage;
2272
2273   while (cdsl)
2274     {
2275       sent = cdsl->data;
2276
2277       if(sent->inode == sbuf.st_ino &&
2278          sent->mtime == sbuf.st_mtime &&
2279          sent->device == sbuf.st_dev)
2280         return attach_dir(sent, dir_name, cmpl_state);
2281
2282       cdsl = cdsl->next;
2283     }
2284 #else
2285   stat_subdirs = TRUE;
2286 #endif
2287
2288   sent = open_new_dir(dir_name, &sbuf, stat_subdirs);
2289
2290   if (sent) {
2291     cmpl_state->directory_sent_storage =
2292       g_list_prepend(cmpl_state->directory_sent_storage, sent);
2293
2294     return attach_dir(sent, dir_name, cmpl_state);
2295   }
2296
2297   return NULL;
2298 }
2299
2300 static CompletionDir*
2301 attach_dir(CompletionDirSent* sent, gchar* dir_name, CompletionState *cmpl_state)
2302 {
2303   CompletionDir* new_dir;
2304
2305   new_dir = g_new(CompletionDir, 1);
2306
2307   cmpl_state->directory_storage =
2308     g_list_prepend(cmpl_state->directory_storage, new_dir);
2309
2310   new_dir->sent = sent;
2311   new_dir->fullname = g_strdup(dir_name);
2312   new_dir->fullname_len = strlen(dir_name);
2313
2314   return new_dir;
2315 }
2316
2317 static gint
2318 correct_dir_fullname(CompletionDir* cmpl_dir)
2319 {
2320   gint length = strlen(cmpl_dir->fullname);
2321   gchar *first_slash = strchr(cmpl_dir->fullname, G_DIR_SEPARATOR);
2322   struct stat sbuf;
2323
2324   /* Does it end with /. (\.) ? */
2325   if (length >= 2 &&
2326       strcmp(cmpl_dir->fullname + length - 2, G_DIR_SEPARATOR_S ".") == 0)
2327     {
2328       /* Is it just the root directory (on a drive) ? */
2329       if (cmpl_dir->fullname + length - 2 == first_slash)
2330         {
2331           cmpl_dir->fullname[length - 1] = 0;
2332           cmpl_dir->fullname_len = length - 1;
2333           return TRUE;
2334         }
2335       else
2336         {
2337           cmpl_dir->fullname[length - 2] = 0;
2338         }
2339     }
2340
2341   /* Ends with /./ (\.\)? */
2342   else if (length >= 3 &&
2343            strcmp(cmpl_dir->fullname + length - 3,
2344                   G_DIR_SEPARATOR_S "." G_DIR_SEPARATOR_S) == 0)
2345     cmpl_dir->fullname[length - 2] = 0;
2346
2347   /* Ends with /.. (\..) ? */
2348   else if (length >= 3 &&
2349            strcmp(cmpl_dir->fullname + length - 3,
2350                   G_DIR_SEPARATOR_S "..") == 0)
2351     {
2352       /* Is it just /.. (X:\..)? */
2353       if(cmpl_dir->fullname + length - 3 == first_slash)
2354         {
2355           cmpl_dir->fullname[length - 2] = 0;
2356           cmpl_dir->fullname_len = length - 2;
2357           return TRUE;
2358         }
2359
2360       if(stat(cmpl_dir->fullname, &sbuf) < 0)
2361         {
2362           cmpl_errno = errno;
2363           return FALSE;
2364         }
2365
2366       cmpl_dir->fullname[length - 3] = 0;
2367
2368       if(!correct_parent(cmpl_dir, &sbuf))
2369         return FALSE;
2370     }
2371
2372   /* Ends with /../ (\..\)? */
2373   else if (length >= 4 &&
2374            strcmp(cmpl_dir->fullname + length - 4,
2375                   G_DIR_SEPARATOR_S ".." G_DIR_SEPARATOR_S) == 0)
2376     {
2377       /* Is it just /../ (X:\..\)? */
2378       if(cmpl_dir->fullname + length - 4 == first_slash)
2379         {
2380           cmpl_dir->fullname[length - 3] = 0;
2381           cmpl_dir->fullname_len = length - 3;
2382           return TRUE;
2383         }
2384
2385       if(stat(cmpl_dir->fullname, &sbuf) < 0)
2386         {
2387           cmpl_errno = errno;
2388           return FALSE;
2389         }
2390
2391       cmpl_dir->fullname[length - 4] = 0;
2392
2393       if(!correct_parent(cmpl_dir, &sbuf))
2394         return FALSE;
2395     }
2396
2397   cmpl_dir->fullname_len = strlen(cmpl_dir->fullname);
2398
2399   return TRUE;
2400 }
2401
2402 static gint
2403 correct_parent(CompletionDir* cmpl_dir, struct stat *sbuf)
2404 {
2405   struct stat parbuf;
2406   gchar *last_slash;
2407   gchar *first_slash;
2408   gchar *new_name;
2409   gchar c = 0;
2410
2411   last_slash = strrchr(cmpl_dir->fullname, G_DIR_SEPARATOR);
2412   g_assert(last_slash);
2413   first_slash = strchr(cmpl_dir->fullname, G_DIR_SEPARATOR);
2414
2415   /* Clever (?) way to check for top-level directory that works also on
2416    * Win32, where there is a drive letter and colon prefixed...
2417    */
2418   if (last_slash != first_slash)
2419     {
2420       last_slash[0] = 0;
2421     }
2422   else
2423     {
2424       c = last_slash[1];
2425       last_slash[1] = 0;
2426     }
2427
2428   if (stat(cmpl_dir->fullname, &parbuf) < 0)
2429     {
2430       cmpl_errno = errno;
2431       if (!c)
2432         last_slash[0] = G_DIR_SEPARATOR;
2433       return FALSE;
2434     }
2435
2436 #ifndef G_OS_WIN32              /* No inode numbers on Win32 */
2437   if (parbuf.st_ino == sbuf->st_ino && parbuf.st_dev == sbuf->st_dev)
2438     /* it wasn't a link */
2439     return TRUE;
2440
2441   if(c)
2442     last_slash[1] = c;
2443   else
2444     last_slash[0] = G_DIR_SEPARATOR;
2445
2446   /* it was a link, have to figure it out the hard way */
2447
2448   new_name = find_parent_dir_fullname(cmpl_dir->fullname);
2449
2450   if (!new_name)
2451     return FALSE;
2452
2453   g_free(cmpl_dir->fullname);
2454
2455   cmpl_dir->fullname = new_name;
2456 #endif
2457
2458   return TRUE;
2459 }
2460
2461 #ifndef G_OS_WIN32
2462
2463 static gchar*
2464 find_parent_dir_fullname(gchar* dirname)
2465 {
2466   gchar *orig_dir;
2467   gchar *result;
2468
2469   orig_dir = g_get_current_dir ();
2470
2471   if(chdir(dirname) != 0 || chdir("..") != 0)
2472     {
2473       cmpl_errno = errno;
2474       return NULL;
2475     }
2476
2477   result = g_get_current_dir ();
2478
2479   if(chdir(orig_dir) != 0)
2480     {
2481       cmpl_errno = errno;
2482       return NULL;
2483     }
2484
2485   g_free (orig_dir);
2486   return result;
2487 }
2488
2489 #endif
2490
2491 /**********************************************************************/
2492 /*                        Completion Operations                       */
2493 /**********************************************************************/
2494
2495 #ifdef HAVE_PWD_H
2496
2497 static PossibleCompletion*
2498 attempt_homedir_completion(gchar* text_to_complete,
2499                            CompletionState *cmpl_state)
2500 {
2501   gint index, length;
2502
2503   if (!cmpl_state->user_dir_name_buffer &&
2504       !get_pwdb(cmpl_state))
2505     return NULL;
2506   length = strlen(text_to_complete) - 1;
2507
2508   cmpl_state->user_completion_index += 1;
2509
2510   while(cmpl_state->user_completion_index < cmpl_state->user_directories_len)
2511     {
2512       index = first_diff_index(text_to_complete + 1,
2513                                cmpl_state->user_directories
2514                                [cmpl_state->user_completion_index].login);
2515
2516       switch(index)
2517         {
2518         case PATTERN_MATCH:
2519           break;
2520         default:
2521           if(cmpl_state->last_valid_char < (index + 1))
2522             cmpl_state->last_valid_char = index + 1;
2523           cmpl_state->user_completion_index += 1;
2524           continue;
2525         }
2526
2527       cmpl_state->the_completion.is_a_completion = 1;
2528       cmpl_state->the_completion.is_directory = TRUE;
2529
2530       append_completion_text("~", cmpl_state);
2531
2532       append_completion_text(cmpl_state->
2533                               user_directories[cmpl_state->user_completion_index].login,
2534                              cmpl_state);
2535
2536       return append_completion_text(G_DIR_SEPARATOR_S, cmpl_state);
2537     }
2538
2539   if(text_to_complete[1] ||
2540      cmpl_state->user_completion_index > cmpl_state->user_directories_len)
2541     {
2542       cmpl_state->user_completion_index = -1;
2543       return NULL;
2544     }
2545   else
2546     {
2547       cmpl_state->user_completion_index += 1;
2548       cmpl_state->the_completion.is_a_completion = 1;
2549       cmpl_state->the_completion.is_directory = TRUE;
2550
2551       return append_completion_text("~" G_DIR_SEPARATOR_S, cmpl_state);
2552     }
2553 }
2554
2555 #endif
2556
2557 #if defined(G_OS_WIN32) || defined(G_WITH_CYGWIN)
2558 #define FOLD(c) (tolower(c))
2559 #else
2560 #define FOLD(c) (c)
2561 #endif
2562
2563 /* returns the index (>= 0) of the first differing character,
2564  * PATTERN_MATCH if the completion matches */
2565 static gint
2566 first_diff_index(gchar* pat, gchar* text)
2567 {
2568   gint diff = 0;
2569
2570   while(*pat && *text && FOLD(*text) == FOLD(*pat))
2571     {
2572       pat += 1;
2573       text += 1;
2574       diff += 1;
2575     }
2576
2577   if(*pat)
2578     return diff;
2579
2580   return PATTERN_MATCH;
2581 }
2582
2583 static PossibleCompletion*
2584 append_completion_text(gchar* text, CompletionState* cmpl_state)
2585 {
2586   gint len, i = 1;
2587
2588   if(!cmpl_state->the_completion.text)
2589     return NULL;
2590
2591   len = strlen(text) + strlen(cmpl_state->the_completion.text) + 1;
2592
2593   if(cmpl_state->the_completion.text_alloc > len)
2594     {
2595       strcat(cmpl_state->the_completion.text, text);
2596       return &cmpl_state->the_completion;
2597     }
2598
2599   while(i < len) { i <<= 1; }
2600
2601   cmpl_state->the_completion.text_alloc = i;
2602
2603   cmpl_state->the_completion.text = (gchar*)g_realloc(cmpl_state->the_completion.text, i);
2604
2605   if(!cmpl_state->the_completion.text)
2606     return NULL;
2607   else
2608     {
2609       strcat(cmpl_state->the_completion.text, text);
2610       return &cmpl_state->the_completion;
2611     }
2612 }
2613
2614 static CompletionDir*
2615 find_completion_dir(gchar* text_to_complete,
2616                     gchar** remaining_text,
2617                     CompletionState* cmpl_state)
2618 {
2619   gchar* first_slash = strchr(text_to_complete, G_DIR_SEPARATOR);
2620   CompletionDir* dir = cmpl_state->reference_dir;
2621   CompletionDir* next;
2622   *remaining_text = text_to_complete;
2623
2624   while(first_slash)
2625     {
2626       gint len = first_slash - *remaining_text;
2627       gint found = 0;
2628       gchar *found_name = NULL;         /* Quiet gcc */
2629       gint i;
2630       gchar* pat_buf = g_new (gchar, len + 1);
2631
2632       strncpy(pat_buf, *remaining_text, len);
2633       pat_buf[len] = 0;
2634
2635       for(i = 0; i < dir->sent->entry_count; i += 1)
2636         {
2637           if(dir->sent->entries[i].is_dir &&
2638              fnmatch(pat_buf, dir->sent->entries[i].entry_name,
2639                      FNMATCH_FLAGS)!= FNM_NOMATCH)
2640             {
2641               if(found)
2642                 {
2643                   g_free (pat_buf);
2644                   return dir;
2645                 }
2646               else
2647                 {
2648                   found = 1;
2649                   found_name = dir->sent->entries[i].entry_name;
2650                 }
2651             }
2652         }
2653
2654       if (!found)
2655         {
2656           /* Perhaps we are trying to open an automount directory */
2657           found_name = pat_buf;
2658         }
2659
2660       next = open_relative_dir(found_name, dir, cmpl_state);
2661
2662       if(!next)
2663         {
2664           g_free (pat_buf);
2665           return NULL;
2666         }
2667
2668       next->cmpl_parent = dir;
2669
2670       dir = next;
2671
2672       if(!correct_dir_fullname(dir))
2673         {
2674           g_free(pat_buf);
2675           return NULL;
2676         }
2677
2678       *remaining_text = first_slash + 1;
2679       first_slash = strchr(*remaining_text, G_DIR_SEPARATOR);
2680
2681       g_free (pat_buf);
2682     }
2683
2684   return dir;
2685 }
2686
2687 static void
2688 update_cmpl(PossibleCompletion* poss, CompletionState* cmpl_state)
2689 {
2690   gint cmpl_len;
2691
2692   if(!poss || !cmpl_is_a_completion(poss))
2693     return;
2694
2695   cmpl_len = strlen(cmpl_this_completion(poss));
2696
2697   if(cmpl_state->updated_text_alloc < cmpl_len + 1)
2698     {
2699       cmpl_state->updated_text =
2700         (gchar*)g_realloc(cmpl_state->updated_text,
2701                           cmpl_state->updated_text_alloc);
2702       cmpl_state->updated_text_alloc = 2*cmpl_len;
2703     }
2704
2705   if(cmpl_state->updated_text_len < 0)
2706     {
2707       strcpy(cmpl_state->updated_text, cmpl_this_completion(poss));
2708       cmpl_state->updated_text_len = cmpl_len;
2709       cmpl_state->re_complete = cmpl_is_directory(poss);
2710     }
2711   else if(cmpl_state->updated_text_len == 0)
2712     {
2713       cmpl_state->re_complete = FALSE;
2714     }
2715   else
2716     {
2717       gint first_diff =
2718         first_diff_index(cmpl_state->updated_text,
2719                          cmpl_this_completion(poss));
2720
2721       cmpl_state->re_complete = FALSE;
2722
2723       if(first_diff == PATTERN_MATCH)
2724         return;
2725
2726       if(first_diff > cmpl_state->updated_text_len)
2727         strcpy(cmpl_state->updated_text, cmpl_this_completion(poss));
2728
2729       cmpl_state->updated_text_len = first_diff;
2730       cmpl_state->updated_text[first_diff] = 0;
2731     }
2732 }
2733
2734 static PossibleCompletion*
2735 attempt_file_completion(CompletionState *cmpl_state)
2736 {
2737   gchar *pat_buf, *first_slash;
2738   CompletionDir *dir = cmpl_state->active_completion_dir;
2739
2740   dir->cmpl_index += 1;
2741
2742   if(dir->cmpl_index == dir->sent->entry_count)
2743     {
2744       if(dir->cmpl_parent == NULL)
2745         {
2746           cmpl_state->active_completion_dir = NULL;
2747
2748           return NULL;
2749         }
2750       else
2751         {
2752           cmpl_state->active_completion_dir = dir->cmpl_parent;
2753
2754           return attempt_file_completion(cmpl_state);
2755         }
2756     }
2757
2758   g_assert(dir->cmpl_text);
2759
2760   first_slash = strchr(dir->cmpl_text, G_DIR_SEPARATOR);
2761
2762   if(first_slash)
2763     {
2764       gint len = first_slash - dir->cmpl_text;
2765
2766       pat_buf = g_new (gchar, len + 1);
2767       strncpy(pat_buf, dir->cmpl_text, len);
2768       pat_buf[len] = 0;
2769     }
2770   else
2771     {
2772       gint len = strlen(dir->cmpl_text);
2773
2774       pat_buf = g_new (gchar, len + 2);
2775       strcpy(pat_buf, dir->cmpl_text);
2776       /* Don't append a * if the user entered one herself.
2777        * This way one can complete *.h and don't get matches
2778        * on any .help files, for instance.
2779        */
2780       if (strchr(pat_buf, '*') == NULL)
2781         strcpy(pat_buf + len, "*");
2782     }
2783
2784   if(first_slash)
2785     {
2786       if(dir->sent->entries[dir->cmpl_index].is_dir)
2787         {
2788           if(fnmatch(pat_buf, dir->sent->entries[dir->cmpl_index].entry_name,
2789                      FNMATCH_FLAGS) != FNM_NOMATCH)
2790             {
2791               CompletionDir* new_dir;
2792
2793               new_dir = open_relative_dir(dir->sent->entries[dir->cmpl_index].entry_name,
2794                                           dir, cmpl_state);
2795
2796               if(!new_dir)
2797                 {
2798                   g_free (pat_buf);
2799                   return NULL;
2800                 }
2801
2802               new_dir->cmpl_parent = dir;
2803
2804               new_dir->cmpl_index = -1;
2805               new_dir->cmpl_text = first_slash + 1;
2806
2807               cmpl_state->active_completion_dir = new_dir;
2808
2809               g_free (pat_buf);
2810               return attempt_file_completion(cmpl_state);
2811             }
2812           else
2813             {
2814               g_free (pat_buf);
2815               return attempt_file_completion(cmpl_state);
2816             }
2817         }
2818       else
2819         {
2820           g_free (pat_buf);
2821           return attempt_file_completion(cmpl_state);
2822         }
2823     }
2824   else
2825     {
2826       if(dir->cmpl_parent != NULL)
2827         {
2828           append_completion_text(dir->fullname +
2829                                  strlen(cmpl_state->completion_dir->fullname) + 1,
2830                                  cmpl_state);
2831           append_completion_text(G_DIR_SEPARATOR_S, cmpl_state);
2832         }
2833
2834       append_completion_text(dir->sent->entries[dir->cmpl_index].entry_name, cmpl_state);
2835
2836       cmpl_state->the_completion.is_a_completion =
2837         (fnmatch(pat_buf, dir->sent->entries[dir->cmpl_index].entry_name,
2838                  FNMATCH_FLAGS) != FNM_NOMATCH);
2839
2840       cmpl_state->the_completion.is_directory = dir->sent->entries[dir->cmpl_index].is_dir;
2841       if(dir->sent->entries[dir->cmpl_index].is_dir)
2842         append_completion_text(G_DIR_SEPARATOR_S, cmpl_state);
2843
2844       g_free (pat_buf);
2845       return &cmpl_state->the_completion;
2846     }
2847 }
2848
2849 #ifdef HAVE_PWD_H
2850
2851 static gint
2852 get_pwdb(CompletionState* cmpl_state)
2853 {
2854   struct passwd *pwd_ptr;
2855   gchar* buf_ptr;
2856   gint len = 0, i, count = 0;
2857
2858   if(cmpl_state->user_dir_name_buffer)
2859     return TRUE;
2860   setpwent ();
2861
2862   while ((pwd_ptr = getpwent()) != NULL)
2863     {
2864       len += strlen(pwd_ptr->pw_name);
2865       len += strlen(pwd_ptr->pw_dir);
2866       len += 2;
2867       count += 1;
2868     }
2869
2870   setpwent ();
2871
2872   cmpl_state->user_dir_name_buffer = g_new(gchar, len);
2873   cmpl_state->user_directories = g_new(CompletionUserDir, count);
2874   cmpl_state->user_directories_len = count;
2875
2876   buf_ptr = cmpl_state->user_dir_name_buffer;
2877
2878   for(i = 0; i < count; i += 1)
2879     {
2880       pwd_ptr = getpwent();
2881       if(!pwd_ptr)
2882         {
2883           cmpl_errno = errno;
2884           goto error;
2885         }
2886
2887       strcpy(buf_ptr, pwd_ptr->pw_name);
2888       cmpl_state->user_directories[i].login = buf_ptr;
2889       buf_ptr += strlen(buf_ptr);
2890       buf_ptr += 1;
2891       strcpy(buf_ptr, pwd_ptr->pw_dir);
2892       cmpl_state->user_directories[i].homedir = buf_ptr;
2893       buf_ptr += strlen(buf_ptr);
2894       buf_ptr += 1;
2895     }
2896
2897   qsort(cmpl_state->user_directories,
2898         cmpl_state->user_directories_len,
2899         sizeof(CompletionUserDir),
2900         compare_user_dir);
2901
2902   endpwent();
2903
2904   return TRUE;
2905
2906 error:
2907
2908   if(cmpl_state->user_dir_name_buffer)
2909     g_free(cmpl_state->user_dir_name_buffer);
2910   if(cmpl_state->user_directories)
2911     g_free(cmpl_state->user_directories);
2912
2913   cmpl_state->user_dir_name_buffer = NULL;
2914   cmpl_state->user_directories = NULL;
2915
2916   return FALSE;
2917 }
2918
2919 static gint
2920 compare_user_dir(const void* a, const void* b)
2921 {
2922   return strcmp((((CompletionUserDir*)a))->login,
2923                 (((CompletionUserDir*)b))->login);
2924 }
2925
2926 #endif
2927
2928 static gint
2929 compare_cmpl_dir(const void* a, const void* b)
2930 {
2931 #if !defined(G_OS_WIN32) && !defined(G_WITH_CYGWIN)
2932   return strcmp((((CompletionDirEntry*)a))->entry_name,
2933                 (((CompletionDirEntry*)b))->entry_name);
2934 #else
2935   return g_strcasecmp((((CompletionDirEntry*)a))->entry_name,
2936                       (((CompletionDirEntry*)b))->entry_name);
2937 #endif
2938 }
2939
2940 static gint
2941 cmpl_state_okay(CompletionState* cmpl_state)
2942 {
2943   return  cmpl_state && cmpl_state->reference_dir;
2944 }
2945
2946 static gchar*
2947 cmpl_strerror(gint err)
2948 {
2949   if(err == CMPL_ERRNO_TOO_LONG)
2950     return "Name too long";
2951   else
2952     return g_strerror (err);
2953 }