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

   1 /* GTK - The GIMP Toolkit
   2  * gtkfilechooserentry.c: Entry with filename completion
   3  * Copyright (C) 2003, Red Hat, Inc.
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this library; if not, write to the
  17  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  18  * Boston, MA 02111-1307, USA.
  19  */
  20
  21 #include "config.h"
  22 #include <string.h>
  23
  24 #include "gtkalignment.h"
  25 #include "gtkcelllayout.h"
  26 #include "gtkcellrenderertext.h"
  27 #include "gtkentry.h"
  28 #include "gtkfilechooserentry.h"
  29 #include "gtklabel.h"
  30 #include "gtkmain.h"
  31 #include "gtkwindow.h"
  32 #include "gtkintl.h"
  33
  34 #include "gdkkeysyms.h"
  35
  36 typedef struct _GtkFileChooserEntryClass GtkFileChooserEntryClass;
  37
  38 #define GTK_FILE_CHOOSER_ENTRY_CLASS(klass)     (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_FILE_CHOOSER_ENTRY, GtkFileChooserEntryClass))
  39 #define GTK_IS_FILE_CHOOSER_ENTRY_CLASS(klass)  (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_FILE_CHOOSER_ENTRY))
  40 #define GTK_FILE_CHOOSER_ENTRY_GET_CLASS(obj)   (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_FILE_CHOOSER_ENTRY, GtkFileChooserEntryClass))
  41
  42 struct _GtkFileChooserEntryClass
  43 {
  44   GtkEntryClass parent_class;
  45 };
  46
  47 /* Action to take when the current folder finishes loading (for explicit or automatic completion) */
  48 typedef enum {
  49   LOAD_COMPLETE_NOTHING,
  50   LOAD_COMPLETE_AUTOCOMPLETE,
  51   LOAD_COMPLETE_EXPLICIT_COMPLETION
  52 } LoadCompleteAction;
  53
  54 typedef enum
  55 {
  56   REFRESH_OK,
  57   REFRESH_INVALID_INPUT,
  58   REFRESH_INCOMPLETE_HOSTNAME,
  59   REFRESH_NONEXISTENT,
  60   REFRESH_NOT_LOCAL
  61 } RefreshStatus;
  62
  63 struct _GtkFileChooserEntry
  64 {
  65   GtkEntry parent_instance;
  66
  67   GtkFileChooserAction action;
  68
  69   GtkFileSystem *file_system;
  70   GFile *base_folder;
  71   GFile *current_folder_file;
  72   gchar *file_part;
  73   gint file_part_pos;
  74
  75   /* Folder being loaded or already loaded */
  76   GtkFolder *current_folder;
  77   GCancellable *load_folder_cancellable;
  78
  79   LoadCompleteAction load_complete_action;
  80
  81   GtkListStore *completion_store;
  82
  83   guint start_autocompletion_idle_id;
  84
  85   GtkWidget *completion_feedback_window;
  86   GtkWidget *completion_feedback_label;
  87   guint completion_feedback_timeout_id;
  88
  89   guint has_completion : 1;
  90   guint in_change      : 1;
  91   guint eat_tabs       : 1;
  92   guint local_only     : 1;
  93 };
  94
  95 enum
  96 {
  97   DISPLAY_NAME_COLUMN,
  98   FILE_COLUMN,
  99   N_COLUMNS
 100 };
 101
 102 #define COMPLETION_FEEDBACK_TIMEOUT_MS 2000
 103
 104 static void     gtk_file_chooser_entry_iface_init     (GtkEditableClass *iface);
 105
 106 static void     gtk_file_chooser_entry_finalize       (GObject          *object);
 107 static void     gtk_file_chooser_entry_dispose        (GObject          *object);
 108 static void     gtk_file_chooser_entry_grab_focus     (GtkWidget        *widget);
 109 static void     gtk_file_chooser_entry_unmap          (GtkWidget        *widget);
 110 static gboolean gtk_file_chooser_entry_key_press_event (GtkWidget *widget,
 111                                                         GdkEventKey *event);
 112 static gboolean gtk_file_chooser_entry_focus_out_event (GtkWidget       *widget,
 113                                                         GdkEventFocus   *event);
 114 static void     gtk_file_chooser_entry_activate       (GtkEntry         *entry);
 115 static void     gtk_file_chooser_entry_do_insert_text (GtkEditable *editable,
 116                                                        const gchar *new_text,
 117                                                        gint         new_text_length,
 118                                                        gint        *position);
 119 static void     gtk_file_chooser_entry_do_delete_text (GtkEditable *editable,
 120                                                        gint         start_pos,
 121                                                        gint         end_pos);
 122 static void     gtk_file_chooser_entry_set_position (GtkEditable *editable,
 123                                                      gint         position);
 124 static void     gtk_file_chooser_entry_set_selection_bounds (GtkEditable *editable,
 125                                                              gint         start_pos,
 126                                                              gint         end_pos);
 127
 128 #ifdef G_OS_WIN32
 129 static gint     insert_text_callback      (GtkFileChooserEntry *widget,
 130                                            const gchar         *new_text,
 131                                            gint                 new_text_length,
 132                                            gint                *position,
 133                                            gpointer             user_data);
 134 static void     delete_text_callback      (GtkFileChooserEntry *widget,
 135                                            gint                 start_pos,
 136                                            gint                 end_pos,
 137                                            gpointer             user_data);
 138 #endif
 139
 140 static gboolean match_selected_callback   (GtkEntryCompletion  *completion,
 141                                            GtkTreeModel        *model,
 142                                            GtkTreeIter         *iter,
 143                                            GtkFileChooserEntry *chooser_entry);
 144 static gboolean completion_match_func     (GtkEntryCompletion  *comp,
 145                                            const char          *key,
 146                                            GtkTreeIter         *iter,
 147                                            gpointer             data);
 148 static char    *maybe_append_separator_to_file (GtkFileChooserEntry *chooser_entry,
 149                                                 GFile               *file,
 150                                                 gchar               *display_name,
 151                                                 gboolean            *appended);
 152
 153 typedef enum {
 154   REFRESH_UP_TO_CURSOR_POSITION,
 155   REFRESH_WHOLE_TEXT
 156 } RefreshMode;
 157
 158 static RefreshStatus refresh_current_folder_and_file_part (GtkFileChooserEntry *chooser_entry,
 159                                                   RefreshMode refresh_mode);
 160 static void finished_loading_cb (GtkFolder *folder,
 161                                  gpointer   data);
 162 static void autocomplete (GtkFileChooserEntry *chooser_entry);
 163 static void install_start_autocompletion_idle (GtkFileChooserEntry *chooser_entry);
 164 static void remove_completion_feedback (GtkFileChooserEntry *chooser_entry);
 165 static void pop_up_completion_feedback (GtkFileChooserEntry *chooser_entry,
 166                                         const gchar         *feedback);
 167
 168 static GtkEditableClass *parent_editable_iface;
 169
 170 G_DEFINE_TYPE_WITH_CODE (GtkFileChooserEntry, _gtk_file_chooser_entry, GTK_TYPE_ENTRY,
 171                          G_IMPLEMENT_INTERFACE (GTK_TYPE_EDITABLE,
 172                                                 gtk_file_chooser_entry_iface_init))
 173
 174 static void
 175 _gtk_file_chooser_entry_class_init (GtkFileChooserEntryClass *class)
 176 {
 177   GObjectClass *gobject_class = G_OBJECT_CLASS (class);
 178   GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
 179   GtkEntryClass *entry_class = GTK_ENTRY_CLASS (class);
 180
 181   gobject_class->finalize = gtk_file_chooser_entry_finalize;
 182   gobject_class->dispose = gtk_file_chooser_entry_dispose;
 183
 184   widget_class->grab_focus = gtk_file_chooser_entry_grab_focus;
 185   widget_class->unmap = gtk_file_chooser_entry_unmap;
 186   widget_class->key_press_event = gtk_file_chooser_entry_key_press_event;
 187   widget_class->focus_out_event = gtk_file_chooser_entry_focus_out_event;
 188
 189   entry_class->activate = gtk_file_chooser_entry_activate;
 190 }
 191
 192 static void
 193 gtk_file_chooser_entry_iface_init (GtkEditableClass *iface)
 194 {
 195   parent_editable_iface = g_type_interface_peek_parent (iface);
 196
 197   iface->do_insert_text = gtk_file_chooser_entry_do_insert_text;
 198   iface->do_delete_text = gtk_file_chooser_entry_do_delete_text;
 199   iface->set_position = gtk_file_chooser_entry_set_position;
 200   iface->set_selection_bounds = gtk_file_chooser_entry_set_selection_bounds;
 201 }
 202
 203 static void
 204 _gtk_file_chooser_entry_init (GtkFileChooserEntry *chooser_entry)
 205 {
 206   GtkEntryCompletion *comp;
 207   GtkCellRenderer *cell;
 208
 209   chooser_entry->local_only = TRUE;
 210
 211   g_object_set (chooser_entry, "truncate-multiline", TRUE, NULL);
 212
 213   comp = gtk_entry_completion_new ();
 214   gtk_entry_completion_set_popup_single_match (comp, FALSE);
 215
 216   gtk_entry_completion_set_match_func (comp,
 217                                        completion_match_func,
 218                                        chooser_entry,
 219                                        NULL);
 220
 221   cell = gtk_cell_renderer_text_new ();
 222   gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (comp),
 223                               cell, TRUE);
 224   gtk_cell_layout_add_attribute (GTK_CELL_LAYOUT (comp),
 225                                  cell,
 226                                  "text", 0);
 227
 228   g_signal_connect (comp, "match-selected",
 229                     G_CALLBACK (match_selected_callback), chooser_entry);
 230
 231   gtk_entry_set_completion (GTK_ENTRY (chooser_entry), comp);
 232   g_object_unref (comp);
 233
 234 #ifdef G_OS_WIN32
 235   g_signal_connect (chooser_entry, "insert-text",
 236                     G_CALLBACK (insert_text_callback), NULL);
 237   g_signal_connect (chooser_entry, "delete-text",
 238                     G_CALLBACK (delete_text_callback), NULL);
 239 #endif
 240 }
 241
 242 static void
 243 gtk_file_chooser_entry_finalize (GObject *object)
 244 {
 245   GtkFileChooserEntry *chooser_entry = GTK_FILE_CHOOSER_ENTRY (object);
 246
 247   if (chooser_entry->base_folder)
 248     g_object_unref (chooser_entry->base_folder);
 249
 250   if (chooser_entry->current_folder)
 251     g_object_unref (chooser_entry->current_folder);
 252
 253   if (chooser_entry->current_folder_file)
 254     g_object_unref (chooser_entry->current_folder_file);
 255
 256   g_free (chooser_entry->file_part);
 257
 258   G_OBJECT_CLASS (_gtk_file_chooser_entry_parent_class)->finalize (object);
 259 }
 260
 261 static void
 262 discard_current_folder (GtkFileChooserEntry *chooser_entry)
 263 {
 264   if (chooser_entry->current_folder)
 265     {
 266       g_signal_handlers_disconnect_by_func (chooser_entry->current_folder,
 267                                             G_CALLBACK (finished_loading_cb), chooser_entry);
 268       g_object_unref (chooser_entry->current_folder);
 269       chooser_entry->current_folder = NULL;
 270     }
 271 }
 272
 273 static void
 274 discard_loading_and_current_folder_file (GtkFileChooserEntry *chooser_entry)
 275 {
 276   if (chooser_entry->load_folder_cancellable)
 277     {
 278       g_cancellable_cancel (chooser_entry->load_folder_cancellable);
 279       chooser_entry->load_folder_cancellable = NULL;
 280     }
 281
 282   if (chooser_entry->current_folder_file)
 283     {
 284       g_object_unref (chooser_entry->current_folder_file);
 285       chooser_entry->current_folder_file = NULL;
 286     }
 287 }
 288
 289 static void
 290 gtk_file_chooser_entry_dispose (GObject *object)
 291 {
 292   GtkFileChooserEntry *chooser_entry = GTK_FILE_CHOOSER_ENTRY (object);
 293
 294   remove_completion_feedback (chooser_entry);
 295   discard_current_folder (chooser_entry);
 296   discard_loading_and_current_folder_file (chooser_entry);
 297
 298   if (chooser_entry->start_autocompletion_idle_id != 0)
 299     {
 300       g_source_remove (chooser_entry->start_autocompletion_idle_id);
 301       chooser_entry->start_autocompletion_idle_id = 0;
 302     }
 303
 304   if (chooser_entry->completion_store)
 305     {
 306       g_object_unref (chooser_entry->completion_store);
 307       chooser_entry->completion_store = NULL;
 308     }
 309
 310   if (chooser_entry->file_system)
 311     {
 312       g_object_unref (chooser_entry->file_system);
 313       chooser_entry->file_system = NULL;
 314     }
 315
 316   G_OBJECT_CLASS (_gtk_file_chooser_entry_parent_class)->dispose (object);
 317 }
 318
 319 /* Match functions for the GtkEntryCompletion */
 320 static gboolean
 321 match_selected_callback (GtkEntryCompletion  *completion,
 322                          GtkTreeModel        *model,
 323                          GtkTreeIter         *iter,
 324                          GtkFileChooserEntry *chooser_entry)
 325 {
 326   char *display_name;
 327   GFile *file;
 328   gint pos;
 329   gboolean dummy;
 330
 331   gtk_tree_model_get (model, iter,
 332                       DISPLAY_NAME_COLUMN, &display_name,
 333                       FILE_COLUMN, &file,
 334                       -1);
 335
 336   if (!display_name || !file)
 337     {
 338       /* these shouldn't complain if passed NULL */
 339       g_object_unref (file);
 340       g_free (display_name);
 341       return FALSE;
 342     }
 343
 344   display_name = maybe_append_separator_to_file (chooser_entry, file, display_name, &dummy);
 345
 346   pos = chooser_entry->file_part_pos;
 347
 348   /* We don't set in_change here as we want to update the current_folder
 349    * variable */
 350   gtk_editable_delete_text (GTK_EDITABLE (chooser_entry),
 351                             pos, -1);
 352   gtk_editable_insert_text (GTK_EDITABLE (chooser_entry),
 353                             display_name, -1,
 354                             &pos);
 355   gtk_editable_set_position (GTK_EDITABLE (chooser_entry), -1);
 356
 357   g_object_unref (file);
 358   g_free (display_name);
 359
 360   return TRUE;
 361 }
 362
 363 /* Match function for the GtkEntryCompletion */
 364 static gboolean
 365 completion_match_func (GtkEntryCompletion *comp,
 366                        const char         *key_unused,
 367                        GtkTreeIter        *iter,
 368                        gpointer            data)
 369 {
 370   GtkFileChooserEntry *chooser_entry;
 371   char *name;
 372   gboolean result;
 373   char *norm_file_part;
 374   char *norm_name;
 375
 376   chooser_entry = GTK_FILE_CHOOSER_ENTRY (data);
 377
 378   /* We ignore the key because it is the contents of the entry.  Instead, we
 379    * just use our precomputed file_part.
 380    */
 381   if (!chooser_entry->file_part)
 382     {
 383       return FALSE;
 384     }
 385
 386   gtk_tree_model_get (GTK_TREE_MODEL (chooser_entry->completion_store), iter, DISPLAY_NAME_COLUMN, &name, -1);
 387   if (!name)
 388     {
 389       return FALSE; /* Uninitialized row, ugh */
 390     }
 391
 392   /* If we have an empty file_part, then we're at the root of a directory.  In
 393    * that case, we want to match all non-dot files.  We might want to match
 394    * dot_files too if show_hidden is TRUE on the fileselector in the future.
 395    */
 396   /* Additionally, support for gnome .hidden files would be sweet, too */
 397   if (chooser_entry->file_part[0] == '\000')
 398     {
 399       if (name[0] == '.')
 400         result = FALSE;
 401       else
 402         result = TRUE;
 403       g_free (name);
 404
 405       return result;
 406     }
 407
 408
 409   norm_file_part = g_utf8_normalize (chooser_entry->file_part, -1, G_NORMALIZE_ALL);
 410   norm_name = g_utf8_normalize (name, -1, G_NORMALIZE_ALL);
 411
 412 #ifdef G_PLATFORM_WIN32
 413   {
 414     gchar *temp;
 415
 416     temp = norm_file_part;
 417     norm_file_part = g_utf8_casefold (norm_file_part, -1);
 418     g_free (temp);
 419
 420     temp = norm_name;
 421     norm_name = g_utf8_casefold (norm_name, -1);
 422     g_free (temp);
 423   }
 424 #endif
 425
 426   result = (strncmp (norm_file_part, norm_name, strlen (norm_file_part)) == 0);
 427
 428   g_free (norm_file_part);
 429   g_free (norm_name);
 430   g_free (name);
 431
 432   return result;
 433 }
 434
 435 static void
 436 clear_completions (GtkFileChooserEntry *chooser_entry)
 437 {
 438   chooser_entry->has_completion = FALSE;
 439   chooser_entry->load_complete_action = LOAD_COMPLETE_NOTHING;
 440
 441   remove_completion_feedback (chooser_entry);
 442 }
 443
 444 static void
 445 beep (GtkFileChooserEntry *chooser_entry)
 446 {
 447   gtk_widget_error_bell (GTK_WIDGET (chooser_entry));
 448 }
 449
 450 /* This function will append a directory separator to paths to
 451  * display_name iff the path associated with it is a directory.
 452  * maybe_append_separator_to_file will g_free the display_name and
 453  * return a new one if needed.  Otherwise, it will return the old one.
 454  * You should be safe calling
 455  *
 456  * display_name = maybe_append_separator_to_file (entry, file, display_name, &appended);
 457  * ...
 458  * g_free (display_name);
 459  */
 460 static char *
 461 maybe_append_separator_to_file (GtkFileChooserEntry *chooser_entry,
 462                                 GFile               *file,
 463                                 gchar               *display_name,
 464                                 gboolean            *appended)
 465 {
 466   *appended = FALSE;
 467
 468   if (!g_str_has_suffix (display_name, G_DIR_SEPARATOR_S) && file)
 469     {
 470       GFileInfo *info;
 471
 472       info = _gtk_folder_get_info (chooser_entry->current_folder, file);
 473
 474       if (info)
 475         {
 476           if (_gtk_file_info_consider_as_directory (info))
 477             {
 478               gchar *tmp = display_name;
 479               display_name = g_strconcat (tmp, G_DIR_SEPARATOR_S, NULL);
 480               *appended = TRUE;
 481               g_free (tmp);
 482             }
 483
 484           g_object_unref (info);
 485         }
 486     }
 487
 488   return display_name;
 489 }
 490
 491 static char *
 492 trim_dir_separator_suffix (const char *str)
 493 {
 494   int len;
 495
 496   len = strlen (str);
 497   if (len > 0 && G_IS_DIR_SEPARATOR (str[len - 1]))
 498     return g_strndup (str, len - 1);
 499   else
 500     return g_strdup (str);
 501 }
 502
 503 /* Determines if the completion model has entries with a common prefix relative
 504  * to the current contents of the entry.  Also, if there's one and only one such
 505  * path, stores it in unique_path_ret.
 506  */
 507 static gboolean
 508 find_common_prefix (GtkFileChooserEntry *chooser_entry,
 509                     gchar               **common_prefix_ret,
 510                     GFile               **unique_file_ret,
 511                     gboolean             *is_complete_not_unique_ret,
 512                     gboolean             *prefix_expands_the_file_part_ret,
 513                     GError              **error)
 514 {
 515   GtkEditable *editable;
 516   GtkTreeIter iter;
 517   gboolean parsed;
 518   gboolean valid;
 519   char *text_up_to_cursor;
 520   GFile *parsed_folder_file;
 521   char *parsed_file_part;
 522
 523   *common_prefix_ret = NULL;
 524   *unique_file_ret = NULL;
 525   *is_complete_not_unique_ret = FALSE;
 526   *prefix_expands_the_file_part_ret = FALSE;
 527
 528   editable = GTK_EDITABLE (chooser_entry);
 529
 530   text_up_to_cursor = gtk_editable_get_chars (editable, 0, gtk_editable_get_position (editable));
 531
 532   parsed = _gtk_file_system_parse (chooser_entry->file_system,
 533                                    chooser_entry->base_folder,
 534                                    text_up_to_cursor,
 535                                    &parsed_folder_file,
 536                                    &parsed_file_part,
 537                                    error);
 538
 539   g_free (text_up_to_cursor);
 540
 541   if (!parsed)
 542     return FALSE;
 543
 544   g_assert (parsed_folder_file != NULL
 545             && chooser_entry->current_folder != NULL
 546             && g_file_equal (parsed_folder_file, chooser_entry->current_folder_file));
 547
 548   g_object_unref (parsed_folder_file);
 549
 550   /* First pass: find the common prefix */
 551
 552   valid = gtk_tree_model_get_iter_first (GTK_TREE_MODEL (chooser_entry->completion_store), &iter);
 553
 554   while (valid)
 555     {
 556       gchar *display_name;
 557       GFile *file;
 558
 559       gtk_tree_model_get (GTK_TREE_MODEL (chooser_entry->completion_store),
 560                           &iter,
 561                           DISPLAY_NAME_COLUMN, &display_name,
 562                           FILE_COLUMN, &file,
 563                           -1);
 564
 565       if (g_str_has_prefix (display_name, parsed_file_part))
 566         {
 567           if (!*common_prefix_ret)
 568             {
 569               *common_prefix_ret = trim_dir_separator_suffix (display_name);
 570               *unique_file_ret = g_object_ref (file);
 571             }
 572           else
 573             {
 574               gchar *p = *common_prefix_ret;
 575               const gchar *q = display_name;
 576
 577               while (*p && *p == *q)
 578                 {
 579                   p++;
 580                   q++;
 581                 }
 582
 583               *p = '\0';
 584
 585               if (*unique_file_ret)
 586                 {
 587                   g_object_unref (*unique_file_ret);
 588                   *unique_file_ret = NULL;
 589                 }
 590             }
 591         }
 592
 593       g_free (display_name);
 594       g_object_unref (file);
 595       valid = gtk_tree_model_iter_next (GTK_TREE_MODEL (chooser_entry->completion_store), &iter);
 596     }
 597
 598   /* Second pass: see if the prefix we found is a complete match */
 599
 600   if (*common_prefix_ret != NULL)
 601     {
 602       valid = gtk_tree_model_get_iter_first (GTK_TREE_MODEL (chooser_entry->completion_store), &iter);
 603
 604       while (valid)
 605         {
 606           gchar *display_name;
 607           int len;
 608
 609           gtk_tree_model_get (GTK_TREE_MODEL (chooser_entry->completion_store),
 610                               &iter,
 611                               DISPLAY_NAME_COLUMN, &display_name,
 612                               -1);
 613           len = strlen (display_name);
 614           g_assert (len > 0);
 615
 616           if (G_IS_DIR_SEPARATOR (display_name[len - 1]))
 617             len--;
 618
 619           if (*unique_file_ret == NULL && strncmp (*common_prefix_ret, display_name, len) == 0)
 620             *is_complete_not_unique_ret = TRUE;
 621
 622           g_free (display_name);
 623           valid = gtk_tree_model_iter_next (GTK_TREE_MODEL (chooser_entry->completion_store), &iter);
 624         }
 625
 626       /* Finally:  Did we generate a new completion, or was the user's input already completed as far as it could go? */
 627
 628       *prefix_expands_the_file_part_ret = g_utf8_strlen (*common_prefix_ret, -1) > g_utf8_strlen (parsed_file_part, -1);
 629     }
 630
 631   g_free (parsed_file_part);
 632
 633   return TRUE;
 634 }
 635
 636 static gboolean
 637 char_after_cursor_is_directory_separator (GtkFileChooserEntry *chooser_entry)
 638 {
 639   int cursor_pos;
 640   gboolean result;
 641
 642   result = FALSE;
 643
 644   cursor_pos = gtk_editable_get_position (GTK_EDITABLE (chooser_entry));
 645   if (cursor_pos < gtk_entry_get_text_length (GTK_ENTRY (chooser_entry)))
 646     {
 647       char *next_char_str;
 648
 649       next_char_str = gtk_editable_get_chars (GTK_EDITABLE (chooser_entry), cursor_pos, cursor_pos + 1);
 650       if (G_IS_DIR_SEPARATOR (*next_char_str))
 651         result = TRUE;
 652
 653       g_free (next_char_str);
 654     }
 655
 656   return result;
 657 }
 658
 659 typedef enum {
 660   INVALID_INPUT,                /* what the user typed is bogus */
 661   NO_MATCH,                     /* no matches based on what the user typed */
 662   NOTHING_INSERTED_COMPLETE,    /* what the user typed is already completed as far as it will go */
 663   NOTHING_INSERTED_UNIQUE,      /* what the user typed is already completed, and is a unique match */
 664   COMPLETED,                    /* completion inserted (ambiguous suffix) */
 665   COMPLETED_UNIQUE,             /* completion inserted, and it is a complete name and a unique match */
 666   COMPLETE_BUT_NOT_UNIQUE       /* completion inserted, it is a complete name but not unique */
 667 } CommonPrefixResult;
 668
 669 /* Finds a common prefix based on the contents of the entry and mandatorily appends it */
 670 static CommonPrefixResult
 671 append_common_prefix (GtkFileChooserEntry *chooser_entry,
 672                       gboolean             highlight,
 673                       gboolean             show_errors)
 674 {
 675   gchar *common_prefix;
 676   GFile *unique_file;
 677   gboolean is_complete_not_unique;
 678   gboolean prefix_expands_the_file_part;
 679   GError *error;
 680   CommonPrefixResult result = NO_MATCH;
 681   gboolean have_result;
 682
 683   clear_completions (chooser_entry);
 684
 685   if (chooser_entry->completion_store == NULL)
 686     return NO_MATCH;
 687
 688   error = NULL;
 689   if (!find_common_prefix (chooser_entry, &common_prefix, &unique_file, &is_complete_not_unique, &prefix_expands_the_file_part, &error))
 690     {
 691       /* If the user types an incomplete hostname ("http://foo" without a slash
 692        * after that), it's not an error.  We just don't want to pop up a
 693        * meaningless completion window in that state.
 694        */
 695       if (!g_error_matches (error, GTK_FILE_CHOOSER_ERROR, GTK_FILE_CHOOSER_ERROR_INCOMPLETE_HOSTNAME)
 696           && show_errors)
 697         {
 698           beep (chooser_entry);
 699           pop_up_completion_feedback (chooser_entry, _("Invalid path"));
 700         }
 701
 702       g_error_free (error);
 703
 704       return INVALID_INPUT;
 705     }
 706
 707   have_result = FALSE;
 708
 709   if (unique_file)
 710     {
 711       if (!char_after_cursor_is_directory_separator (chooser_entry))
 712         {
 713           gboolean appended;
 714
 715           common_prefix = maybe_append_separator_to_file (chooser_entry,
 716                                                           unique_file,
 717                                                           common_prefix,
 718                                                           &appended);
 719           if (appended)
 720             prefix_expands_the_file_part = TRUE;
 721         }
 722
 723       g_object_unref (unique_file);
 724
 725       if (prefix_expands_the_file_part)
 726         result = COMPLETED_UNIQUE;
 727       else
 728         result = NOTHING_INSERTED_UNIQUE;
 729
 730       have_result = TRUE;
 731     }
 732   else
 733     {
 734       if (is_complete_not_unique)
 735         {
 736           result = COMPLETE_BUT_NOT_UNIQUE;
 737           have_result = TRUE;
 738         }
 739     }
 740
 741   if (common_prefix)
 742     {
 743       gint cursor_pos;
 744       gint common_prefix_len;
 745       gint pos;
 746
 747       cursor_pos = gtk_editable_get_position (GTK_EDITABLE (chooser_entry));
 748       common_prefix_len = g_utf8_strlen (common_prefix, -1);
 749
 750       pos = chooser_entry->file_part_pos;
 751
 752       if (prefix_expands_the_file_part)
 753         {
 754           chooser_entry->in_change = TRUE;
 755           gtk_editable_delete_text (GTK_EDITABLE (chooser_entry),
 756                                     pos, cursor_pos);
 757           gtk_editable_insert_text (GTK_EDITABLE (chooser_entry),
 758                                     common_prefix, -1,
 759                                     &pos);
 760           chooser_entry->in_change = FALSE;
 761
 762           if (highlight)
 763             {
 764               gtk_editable_select_region (GTK_EDITABLE (chooser_entry),
 765                                           cursor_pos,
 766                                           pos); /* equivalent to cursor_pos + common_prefix_len); */
 767               chooser_entry->has_completion = TRUE;
 768             }
 769           else
 770             gtk_editable_set_position (GTK_EDITABLE (chooser_entry), pos);
 771         }
 772       else if (!have_result)
 773         {
 774           result = NOTHING_INSERTED_COMPLETE;
 775           have_result = TRUE;
 776         }
 777
 778       g_free (common_prefix);
 779
 780       if (have_result)
 781         return result;
 782       else
 783         return COMPLETED;
 784     }
 785   else
 786     {
 787       if (have_result)
 788         return result;
 789       else
 790         return NO_MATCH;
 791     }
 792 }
 793
 794 static void
 795 gtk_file_chooser_entry_do_insert_text (GtkEditable *editable,
 796                                        const gchar *new_text,
 797                                        gint         new_text_length,
 798                                        gint        *position)
 799 {
 800   GtkFileChooserEntry *chooser_entry = GTK_FILE_CHOOSER_ENTRY (editable);
 801   gint old_text_len;
 802   gint insert_pos;
 803
 804   old_text_len = gtk_entry_get_text_length (GTK_ENTRY (chooser_entry));
 805   insert_pos = *position;
 806
 807   parent_editable_iface->do_insert_text (editable, new_text, new_text_length, position);
 808
 809   if (chooser_entry->in_change)
 810     return;
 811
 812   remove_completion_feedback (chooser_entry);
 813
 814   if ((chooser_entry->action == GTK_FILE_CHOOSER_ACTION_OPEN
 815        || chooser_entry->action == GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER)
 816       && insert_pos == old_text_len)
 817     install_start_autocompletion_idle (chooser_entry);
 818 }
 819
 820 static void
 821 clear_completions_if_not_in_change (GtkFileChooserEntry *chooser_entry)
 822 {
 823   if (chooser_entry->in_change)
 824     return;
 825
 826   clear_completions (chooser_entry);
 827 }
 828
 829 static void
 830 gtk_file_chooser_entry_do_delete_text (GtkEditable *editable,
 831                                        gint         start_pos,
 832                                        gint         end_pos)
 833 {
 834   GtkFileChooserEntry *chooser_entry = GTK_FILE_CHOOSER_ENTRY (editable);
 835
 836   parent_editable_iface->do_delete_text (editable, start_pos, end_pos);
 837
 838   clear_completions_if_not_in_change (chooser_entry);
 839 }
 840
 841 static void
 842 gtk_file_chooser_entry_set_position (GtkEditable *editable,
 843                                      gint         position)
 844 {
 845   GtkFileChooserEntry *chooser_entry = GTK_FILE_CHOOSER_ENTRY (editable);
 846
 847   parent_editable_iface->set_position (editable, position);
 848
 849   clear_completions_if_not_in_change (chooser_entry);
 850 }
 851
 852 static void
 853 gtk_file_chooser_entry_set_selection_bounds (GtkEditable *editable,
 854                                              gint         start_pos,
 855                                              gint         end_pos)
 856 {
 857   GtkFileChooserEntry *chooser_entry = GTK_FILE_CHOOSER_ENTRY (editable);
 858
 859   parent_editable_iface->set_selection_bounds (editable, start_pos, end_pos);
 860
 861   clear_completions_if_not_in_change (chooser_entry);
 862 }
 863
 864 static void
 865 gtk_file_chooser_entry_grab_focus (GtkWidget *widget)
 866 {
 867   GTK_WIDGET_CLASS (_gtk_file_chooser_entry_parent_class)->grab_focus (widget);
 868   _gtk_file_chooser_entry_select_filename (GTK_FILE_CHOOSER_ENTRY (widget));
 869 }
 870
 871 static void
 872 gtk_file_chooser_entry_unmap (GtkWidget *widget)
 873 {
 874   GtkFileChooserEntry *chooser_entry = GTK_FILE_CHOOSER_ENTRY (widget);
 875
 876   remove_completion_feedback (chooser_entry);
 877
 878   GTK_WIDGET_CLASS (_gtk_file_chooser_entry_parent_class)->unmap (widget);
 879 }
 880
 881 static gboolean
 882 completion_feedback_window_expose_event_cb (GtkWidget      *widget,
 883                                             GdkEventExpose *event,
 884                                             gpointer        data)
 885 {
 886   /* Stolen from gtk_tooltip_paint_window() */
 887
 888   GtkFileChooserEntry *chooser_entry = GTK_FILE_CHOOSER_ENTRY (data);
 889
 890   gtk_paint_flat_box (chooser_entry->completion_feedback_window->style,
 891                       chooser_entry->completion_feedback_window->window,
 892                       GTK_STATE_NORMAL,
 893                       GTK_SHADOW_OUT,
 894                       NULL,
 895                       chooser_entry->completion_feedback_window,
 896                       "tooltip",
 897                       0, 0,
 898                       chooser_entry->completion_feedback_window->allocation.width,
 899                       chooser_entry->completion_feedback_window->allocation.height);
 900
 901   return FALSE;
 902 }
 903
 904 static void
 905 set_invisible_mouse_cursor (GdkWindow *window)
 906 {
 907   GdkDisplay *display;
 908   GdkCursor *cursor;
 909
 910   display = gdk_drawable_get_display (window);
 911   cursor = gdk_cursor_new_for_display (display, GDK_BLANK_CURSOR);
 912
 913   gdk_window_set_cursor (window, cursor);
 914
 915   gdk_cursor_unref (cursor);
 916 }
 917
 918 static void
 919 completion_feedback_window_realize_cb (GtkWidget *widget,
 920                                        gpointer data)
 921 {
 922   /* We hide the mouse cursor inside the completion feedback window, since
 923    * GtkEntry hides the cursor when the user types.  We don't want the cursor to
 924    * come back if the completion feedback ends up where the mouse is.
 925    */
 926   set_invisible_mouse_cursor (widget->window);
 927 }
 928
 929 static void
 930 create_completion_feedback_window (GtkFileChooserEntry *chooser_entry)
 931 {
 932   /* Stolen from gtk_tooltip_init() */
 933
 934   GtkWidget *alignment;
 935
 936   chooser_entry->completion_feedback_window = gtk_window_new (GTK_WINDOW_POPUP);
 937   gtk_window_set_type_hint (GTK_WINDOW (chooser_entry->completion_feedback_window),
 938                             GDK_WINDOW_TYPE_HINT_TOOLTIP);
 939   gtk_widget_set_app_paintable (chooser_entry->completion_feedback_window, TRUE);
 940   gtk_window_set_resizable (GTK_WINDOW (chooser_entry->completion_feedback_window), FALSE);
 941   gtk_widget_set_name (chooser_entry->completion_feedback_window, "gtk-tooltip");
 942
 943   alignment = gtk_alignment_new (0.5, 0.5, 1.0, 1.0);
 944   gtk_alignment_set_padding (GTK_ALIGNMENT (alignment),
 945                              chooser_entry->completion_feedback_window->style->ythickness,
 946                              chooser_entry->completion_feedback_window->style->ythickness,
 947                              chooser_entry->completion_feedback_window->style->xthickness,
 948                              chooser_entry->completion_feedback_window->style->xthickness);
 949   gtk_container_add (GTK_CONTAINER (chooser_entry->completion_feedback_window), alignment);
 950   gtk_widget_show (alignment);
 951
 952   g_signal_connect (chooser_entry->completion_feedback_window, "expose-event",
 953                     G_CALLBACK (completion_feedback_window_expose_event_cb), chooser_entry);
 954   g_signal_connect (chooser_entry->completion_feedback_window, "realize",
 955                     G_CALLBACK (completion_feedback_window_realize_cb), chooser_entry);
 956   /* FIXME: connect to motion-notify-event, and *show* the cursor when the mouse moves */
 957
 958   chooser_entry->completion_feedback_label = gtk_label_new (NULL);
 959   gtk_container_add (GTK_CONTAINER (alignment), chooser_entry->completion_feedback_label);
 960   gtk_widget_show (chooser_entry->completion_feedback_label);
 961 }
 962
 963 static gboolean
 964 completion_feedback_timeout_cb (gpointer data)
 965 {
 966   GtkFileChooserEntry *chooser_entry = GTK_FILE_CHOOSER_ENTRY (data);
 967
 968   chooser_entry->completion_feedback_timeout_id = 0;
 969
 970   remove_completion_feedback (chooser_entry);
 971   return FALSE;
 972 }
 973
 974 static void
 975 install_completion_feedback_timer (GtkFileChooserEntry *chooser_entry)
 976 {
 977   if (chooser_entry->completion_feedback_timeout_id != 0)
 978     g_source_remove (chooser_entry->completion_feedback_timeout_id);
 979
 980   chooser_entry->completion_feedback_timeout_id = gdk_threads_add_timeout (COMPLETION_FEEDBACK_TIMEOUT_MS,
 981                                                                            completion_feedback_timeout_cb,
 982                                                                            chooser_entry);
 983 }
 984
 985 /* Gets the x position of the text cursor in the entry, in widget coordinates */
 986 static void
 987 get_entry_cursor_x (GtkFileChooserEntry *chooser_entry,
 988                     gint                *x_ret)
 989 {
 990   /* FIXME: see the docs for gtk_entry_get_layout_offsets().  As an exercise for
 991    * the reader, you have to implement support for the entry's scroll offset and
 992    * RTL layouts and all the fancy Pango stuff.
 993    */
 994
 995   PangoLayout *layout;
 996   gint layout_x, layout_y;
 997   gint layout_index;
 998   PangoRectangle strong_pos;
 999
1000   layout = gtk_entry_get_layout (GTK_ENTRY (chooser_entry));
1001
1002   gtk_entry_get_layout_offsets (GTK_ENTRY (chooser_entry), &layout_x, &layout_y);
1003
1004   layout_index = gtk_entry_text_index_to_layout_index (GTK_ENTRY (chooser_entry),
1005                                                        GTK_ENTRY (chooser_entry)->current_pos);
1006
1007   pango_layout_get_cursor_pos (layout, layout_index, &strong_pos, NULL);
1008
1009   *x_ret = layout_x + strong_pos.x / PANGO_SCALE;
1010 }
1011
1012 static void
1013 show_completion_feedback_window (GtkFileChooserEntry *chooser_entry)
1014 {
1015   /* More or less stolen from gtk_tooltip_position() */
1016
1017   GtkRequisition feedback_req;
1018   gint entry_x, entry_y;
1019   gint cursor_x;
1020   GtkAllocation *entry_allocation;
1021   int feedback_x, feedback_y;
1022
1023   gtk_widget_size_request (chooser_entry->completion_feedback_window, &feedback_req);
1024
1025   gdk_window_get_origin (GTK_WIDGET (chooser_entry)->window, &entry_x, &entry_y);
1026   entry_allocation = &(GTK_WIDGET (chooser_entry)->allocation);
1027
1028   get_entry_cursor_x (chooser_entry, &cursor_x);
1029
1030   /* FIXME: fit to the screen if we bump on the screen's edge */
1031   /* cheap "half M-width", use height as approximation of character em-size */
1032   feedback_x = entry_x + cursor_x + entry_allocation->height / 2;
1033   feedback_y = entry_y + (entry_allocation->height - feedback_req.height) / 2;
1034
1035   gtk_window_move (GTK_WINDOW (chooser_entry->completion_feedback_window), feedback_x, feedback_y);
1036   gtk_widget_show (chooser_entry->completion_feedback_window);
1037
1038   install_completion_feedback_timer (chooser_entry);
1039 }
1040
1041 static void
1042 pop_up_completion_feedback (GtkFileChooserEntry *chooser_entry,
1043                             const gchar         *feedback)
1044 {
1045   if (chooser_entry->completion_feedback_window == NULL)
1046     create_completion_feedback_window (chooser_entry);
1047
1048   gtk_label_set_text (GTK_LABEL (chooser_entry->completion_feedback_label), feedback);
1049
1050   show_completion_feedback_window (chooser_entry);
1051 }
1052
1053 static void
1054 remove_completion_feedback (GtkFileChooserEntry *chooser_entry)
1055 {
1056   if (chooser_entry->completion_feedback_window)
1057     gtk_widget_destroy (chooser_entry->completion_feedback_window);
1058
1059   chooser_entry->completion_feedback_window = NULL;
1060   chooser_entry->completion_feedback_label = NULL;
1061
1062   if (chooser_entry->completion_feedback_timeout_id != 0)
1063     {
1064       g_source_remove (chooser_entry->completion_feedback_timeout_id);
1065       chooser_entry->completion_feedback_timeout_id = 0;
1066     }
1067 }
1068
1069 static void
1070 explicitly_complete (GtkFileChooserEntry *chooser_entry)
1071 {
1072   CommonPrefixResult result;
1073
1074   g_assert (chooser_entry->current_folder != NULL);
1075   g_assert (_gtk_folder_is_finished_loading (chooser_entry->current_folder));
1076
1077   /* FIXME: see what Emacs does in case there is no common prefix, or there is more than one match:
1078    *
1079    * - If there is a common prefix, insert it (done)
1080    * - If there is no common prefix, pop up the suggestion window
1081    * - If there are no matches at all, beep and bring up a tooltip (done)
1082    * - If the suggestion window is already up, scroll it
1083    */
1084   result = append_common_prefix (chooser_entry, FALSE, TRUE);
1085
1086   switch (result)
1087     {
1088     case INVALID_INPUT:
1089       /* We already beeped in append_common_prefix(); do nothing here */
1090       break;
1091
1092     case NO_MATCH:
1093       beep (chooser_entry);
1094       /* translators: this text is shown when there are no completions
1095        * for something the user typed in a file chooser entry
1096        */
1097       pop_up_completion_feedback (chooser_entry, _("No match"));
1098       break;
1099
1100     case NOTHING_INSERTED_COMPLETE:
1101       /* FIXME: pop up the suggestion window or scroll it */
1102       break;
1103
1104     case NOTHING_INSERTED_UNIQUE:
1105       /* translators: this text is shown when there is exactly one completion
1106        * for something the user typed in a file chooser entry
1107        */
1108       pop_up_completion_feedback (chooser_entry, _("Sole completion"));
1109       break;
1110
1111     case COMPLETED:
1112       /* Nothing to do */
1113       break;
1114
1115     case COMPLETED_UNIQUE:
1116       /* Nothing to do */
1117       break;
1118
1119     case COMPLETE_BUT_NOT_UNIQUE:
1120       /* translators: this text is shown when the text in a file chooser
1121        * entry is a complete filename, but could be continued to find
1122        * a longer match
1123        */
1124       pop_up_completion_feedback (chooser_entry, _("Complete, but not unique"));
1125       break;
1126
1127     default:
1128       g_assert_not_reached ();
1129     }
1130 }
1131
1132 static void
1133 start_explicit_completion (GtkFileChooserEntry *chooser_entry)
1134 {
1135   RefreshStatus status;
1136   gboolean is_error;
1137   char *feedback_msg;
1138
1139   status = refresh_current_folder_and_file_part (chooser_entry, REFRESH_UP_TO_CURSOR_POSITION);
1140
1141   is_error = FALSE;
1142
1143   switch (status)
1144     {
1145     case REFRESH_OK:
1146       g_assert (chooser_entry->current_folder_file != NULL);
1147
1148       if (chooser_entry->current_folder && _gtk_folder_is_finished_loading (chooser_entry->current_folder))
1149         explicitly_complete (chooser_entry);
1150       else
1151         {
1152           chooser_entry->load_complete_action = LOAD_COMPLETE_EXPLICIT_COMPLETION;
1153
1154           /* Translators: this text is shown while the system is searching
1155            * for possible completions for filenames in a file chooser entry. */
1156           pop_up_completion_feedback (chooser_entry, _("Completing..."));
1157         }
1158
1159       break;
1160
1161     case REFRESH_INVALID_INPUT:
1162       is_error = TRUE;
1163       /* Translators: this is shown in the feedback for Tab-completion in a file
1164        * chooser's text entry, when the user enters an invalid path. */
1165       feedback_msg = _("Invalid path");
1166       break;
1167
1168     case REFRESH_INCOMPLETE_HOSTNAME:
1169       is_error = TRUE;
1170
1171       if (chooser_entry->local_only)
1172         {
1173           /* hostnames in a local_only file chooser?  user error */
1174
1175           /* Translators: this is shown in the feedback for Tab-completion in a
1176            * file chooser's text entry when the user enters something like
1177            * "sftp://blahblah" in an app that only supports local filenames. */
1178           feedback_msg = _("Only local files may be selected");
1179         }
1180       else
1181         {
1182           /* Another option is to complete the hostname based on the remote volumes that are mounted */
1183
1184           /* Translators: this is shown in the feedback for Tab-completion in a
1185            * file chooser's text entry when the user hasn't entered the first '/'
1186            * after a hostname and yet hits Tab (such as "sftp://blahblah[Tab]") */
1187           feedback_msg = _("Incomplete hostname; end it with '/'");
1188         }
1189
1190       break;
1191
1192     case REFRESH_NONEXISTENT:
1193       is_error = TRUE;
1194
1195       /* Translators: this is shown in the feedback for Tab-completion in a file
1196        * chooser's text entry when the user enters a path that does not exist
1197        * and then hits Tab */
1198       feedback_msg = _("Path does not exist");
1199       break;
1200
1201     case REFRESH_NOT_LOCAL:
1202       is_error = TRUE;
1203       feedback_msg = _("Only local files may be selected");
1204       break;
1205
1206     default:
1207       g_assert_not_reached ();
1208       return;
1209     }
1210
1211   if (is_error)
1212     {
1213       g_assert (chooser_entry->current_folder_file == NULL);
1214
1215       beep (chooser_entry);
1216       pop_up_completion_feedback (chooser_entry, feedback_msg);
1217       chooser_entry->load_complete_action = LOAD_COMPLETE_NOTHING;
1218     }
1219 }
1220
1221 static gboolean
1222 gtk_file_chooser_entry_key_press_event (GtkWidget *widget,
1223                                         GdkEventKey *event)
1224 {
1225   GtkFileChooserEntry *chooser_entry;
1226   GtkEditable *editable;
1227   GtkEntry *entry;
1228   GdkModifierType state;
1229   gboolean control_pressed;
1230
1231   chooser_entry = GTK_FILE_CHOOSER_ENTRY (widget);
1232   editable = GTK_EDITABLE (widget);
1233   entry = GTK_ENTRY (widget);
1234
1235   if (!chooser_entry->eat_tabs)
1236     return GTK_WIDGET_CLASS (_gtk_file_chooser_entry_parent_class)->key_press_event (widget, event);
1237
1238   control_pressed = FALSE;
1239
1240   if (gtk_get_current_event_state (&state))
1241     {
1242       if ((state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
1243         control_pressed = TRUE;
1244     }
1245
1246   /* This is a bit evil -- it makes Tab never leave the entry. It basically
1247    * makes it 'safe' for people to hit. */
1248   if (event->keyval == GDK_Tab && !control_pressed)
1249     {
1250       if (chooser_entry->has_completion)
1251         gtk_editable_set_position (editable, gtk_entry_get_text_length (entry));
1252       else
1253         start_explicit_completion (chooser_entry);
1254
1255       return TRUE;
1256      }
1257
1258   return GTK_WIDGET_CLASS (_gtk_file_chooser_entry_parent_class)->key_press_event (widget, event);
1259
1260 }
1261
1262 static gboolean
1263 gtk_file_chooser_entry_focus_out_event (GtkWidget     *widget,
1264                                         GdkEventFocus *event)
1265 {
1266   GtkFileChooserEntry *chooser_entry = GTK_FILE_CHOOSER_ENTRY (widget);
1267
1268   chooser_entry->load_complete_action = LOAD_COMPLETE_NOTHING;
1269
1270   return GTK_WIDGET_CLASS (_gtk_file_chooser_entry_parent_class)->focus_out_event (widget, event);
1271 }
1272
1273 static void
1274 commit_completion_and_refresh (GtkFileChooserEntry *chooser_entry)
1275 {
1276   if (chooser_entry->has_completion)
1277     {
1278       gtk_editable_set_position (GTK_EDITABLE (chooser_entry),
1279                                  gtk_entry_get_text_length (GTK_ENTRY (chooser_entry)));
1280     }
1281
1282   /* Here we ignore the result of refresh_current_folder_and_file_part(); there is nothing we can do with it */
1283   refresh_current_folder_and_file_part (chooser_entry, REFRESH_WHOLE_TEXT);
1284 }
1285
1286 static void
1287 gtk_file_chooser_entry_activate (GtkEntry *entry)
1288 {
1289   GtkFileChooserEntry *chooser_entry = GTK_FILE_CHOOSER_ENTRY (entry);
1290
1291   commit_completion_and_refresh (chooser_entry);
1292   GTK_ENTRY_CLASS (_gtk_file_chooser_entry_parent_class)->activate (entry);
1293 }
1294
1295 static void
1296 discard_completion_store (GtkFileChooserEntry *chooser_entry)
1297 {
1298   if (!chooser_entry->completion_store)
1299     return;
1300
1301   gtk_entry_completion_set_model (gtk_entry_get_completion (GTK_ENTRY (chooser_entry)), NULL);
1302   g_object_unref (chooser_entry->completion_store);
1303   chooser_entry->completion_store = NULL;
1304 }
1305
1306 /* Fills the completion store from the contents of the current folder */
1307 static void
1308 populate_completion_store (GtkFileChooserEntry *chooser_entry)
1309 {
1310   GSList *files;
1311   GSList *tmp_list;
1312
1313   discard_completion_store (chooser_entry);
1314
1315   files = _gtk_folder_list_children (chooser_entry->current_folder);
1316
1317   chooser_entry->completion_store = gtk_list_store_new (N_COLUMNS,
1318                                                         G_TYPE_STRING,
1319                                                         G_TYPE_FILE);
1320
1321   for (tmp_list = files; tmp_list; tmp_list = tmp_list->next)
1322     {
1323       GFileInfo *info;
1324       GFile *file;
1325
1326       file = tmp_list->data;
1327
1328       info = _gtk_folder_get_info (chooser_entry->current_folder, file);
1329
1330       if (info)
1331         {
1332           gchar *display_name = g_strdup (g_file_info_get_display_name (info));
1333           GtkTreeIter iter;
1334           gboolean dummy;
1335
1336           display_name = maybe_append_separator_to_file (chooser_entry, file, display_name, &dummy);
1337
1338           gtk_list_store_append (chooser_entry->completion_store, &iter);
1339           gtk_list_store_set (chooser_entry->completion_store, &iter,
1340                               DISPLAY_NAME_COLUMN, display_name,
1341                               FILE_COLUMN, file,
1342                               -1);
1343
1344           g_object_unref (info);
1345           g_free (display_name);
1346         }
1347     }
1348
1349   g_slist_foreach (files, (GFunc) g_object_unref, NULL);
1350   g_slist_free (files);
1351
1352   gtk_tree_sortable_set_sort_column_id (GTK_TREE_SORTABLE (chooser_entry->completion_store),
1353                                         DISPLAY_NAME_COLUMN, GTK_SORT_ASCENDING);
1354
1355   gtk_entry_completion_set_model (gtk_entry_get_completion (GTK_ENTRY (chooser_entry)),
1356                                   GTK_TREE_MODEL (chooser_entry->completion_store));
1357 }
1358
1359 /* When we finish loading the current folder, this function should get called to
1360  * perform the deferred autocompletion or explicit completion.
1361  */
1362 static void
1363 perform_load_complete_action (GtkFileChooserEntry *chooser_entry)
1364 {
1365   switch (chooser_entry->load_complete_action)
1366     {
1367     case LOAD_COMPLETE_NOTHING:
1368       break;
1369
1370     case LOAD_COMPLETE_AUTOCOMPLETE:
1371       autocomplete (chooser_entry);
1372       break;
1373
1374     case LOAD_COMPLETE_EXPLICIT_COMPLETION:
1375       explicitly_complete (chooser_entry);
1376       break;
1377
1378     default:
1379       g_assert_not_reached ();
1380     }
1381
1382   chooser_entry->load_complete_action = LOAD_COMPLETE_NOTHING;
1383 }
1384
1385 static void
1386 finish_folder_load (GtkFileChooserEntry *chooser_entry)
1387 {
1388   populate_completion_store (chooser_entry);
1389   perform_load_complete_action (chooser_entry);
1390
1391   gtk_widget_set_tooltip_text (GTK_WIDGET (chooser_entry), NULL);
1392 }
1393
1394 /* Callback when the current folder finishes loading */
1395 static void
1396 finished_loading_cb (GtkFolder *folder,
1397                      gpointer   data)
1398 {
1399   GtkFileChooserEntry *chooser_entry = GTK_FILE_CHOOSER_ENTRY (data);
1400
1401   finish_folder_load (chooser_entry);
1402 }
1403
1404 /* Callback when the current folder's handle gets obtained (not necessarily loaded completely) */
1405 static void
1406 load_directory_get_folder_callback (GCancellable  *cancellable,
1407                                     GtkFolder     *folder,
1408                                     const GError  *error,
1409                                     gpointer       data)
1410 {
1411   gboolean cancelled = g_cancellable_is_cancelled (cancellable);
1412   GtkFileChooserEntry *chooser_entry = data;
1413
1414   if (cancellable != chooser_entry->load_folder_cancellable)
1415     goto out;
1416
1417   chooser_entry->load_folder_cancellable = NULL;
1418
1419   if (error)
1420     {
1421       LoadCompleteAction old_load_complete_action;
1422
1423       old_load_complete_action = chooser_entry->load_complete_action;
1424
1425       discard_completion_store (chooser_entry);
1426       clear_completions (chooser_entry);
1427
1428       if (old_load_complete_action == LOAD_COMPLETE_EXPLICIT_COMPLETION)
1429         {
1430           /* Since this came from explicit user action (Tab completion), we'll present errors visually */
1431
1432           beep (chooser_entry);
1433           pop_up_completion_feedback (chooser_entry, error->message);
1434         }
1435
1436       discard_current_folder (chooser_entry);
1437     }
1438
1439   if (cancelled || error)
1440     goto out;
1441
1442   g_assert (folder != NULL);
1443   chooser_entry->current_folder = g_object_ref (folder);
1444
1445   discard_completion_store (chooser_entry);
1446
1447   if (_gtk_folder_is_finished_loading (chooser_entry->current_folder))
1448     finish_folder_load (chooser_entry);
1449   else
1450     g_signal_connect (chooser_entry->current_folder, "finished-loading",
1451                       G_CALLBACK (finished_loading_cb), chooser_entry);
1452
1453 out:
1454   g_object_unref (chooser_entry);
1455   g_object_unref (cancellable);
1456 }
1457
1458 static RefreshStatus
1459 start_loading_current_folder (GtkFileChooserEntry *chooser_entry)
1460 {
1461   if (chooser_entry->file_system == NULL)
1462     return REFRESH_OK;
1463
1464   g_assert (chooser_entry->current_folder_file != NULL);
1465   g_assert (chooser_entry->current_folder == NULL);
1466   g_assert (chooser_entry->load_folder_cancellable == NULL);
1467
1468   if (chooser_entry->local_only
1469       && !g_file_is_native (chooser_entry->current_folder_file))
1470     {
1471       g_object_unref (chooser_entry->current_folder_file);
1472       chooser_entry->current_folder_file = NULL;
1473
1474       return REFRESH_NOT_LOCAL;
1475     }
1476
1477   chooser_entry->load_folder_cancellable =
1478     _gtk_file_system_get_folder (chooser_entry->file_system,
1479                                  chooser_entry->current_folder_file,
1480                                 "standard::name,standard::display-name,standard::type",
1481                                  load_directory_get_folder_callback,
1482                                  g_object_ref (chooser_entry));
1483
1484   return REFRESH_OK;
1485 }
1486
1487 static RefreshStatus
1488 reload_current_folder (GtkFileChooserEntry *chooser_entry,
1489                        GFile               *folder_file,
1490                        gboolean             force_reload)
1491 {
1492   gboolean reload = FALSE;
1493
1494   g_assert (folder_file != NULL);
1495
1496   if (chooser_entry->current_folder_file)
1497     {
1498       if ((!(g_file_equal (folder_file, chooser_entry->current_folder_file)
1499              && chooser_entry->load_folder_cancellable))
1500           || force_reload)
1501         {
1502           reload = TRUE;
1503
1504           discard_current_folder (chooser_entry);
1505           discard_loading_and_current_folder_file (chooser_entry);
1506
1507           chooser_entry->current_folder_file = g_object_ref (folder_file);
1508         }
1509     }
1510   else
1511     {
1512       chooser_entry->current_folder_file = g_object_ref (folder_file);
1513       reload = TRUE;
1514     }
1515
1516   if (reload)
1517     return start_loading_current_folder (chooser_entry);
1518   else
1519     return REFRESH_OK;
1520 }
1521
1522 static RefreshStatus
1523 refresh_current_folder_and_file_part (GtkFileChooserEntry *chooser_entry,
1524                                       RefreshMode          refresh_mode)
1525 {
1526   GtkEditable *editable;
1527   gint end_pos;
1528   gchar *text;
1529   GFile *folder_file;
1530   gchar *file_part;
1531   gsize total_len, file_part_len;
1532   gint file_part_pos;
1533   GError *error;
1534   RefreshStatus result;
1535
1536   editable = GTK_EDITABLE (chooser_entry);
1537
1538   switch (refresh_mode)
1539     {
1540     case REFRESH_UP_TO_CURSOR_POSITION:
1541       end_pos = gtk_editable_get_position (editable);
1542       break;
1543
1544     case REFRESH_WHOLE_TEXT:
1545       end_pos = gtk_entry_get_text_length (GTK_ENTRY (chooser_entry));
1546       break;
1547
1548     default:
1549       g_assert_not_reached ();
1550       return REFRESH_INVALID_INPUT;
1551     }
1552
1553   text = gtk_editable_get_chars (editable, 0, end_pos);
1554
1555   error = NULL;
1556   if (!chooser_entry->file_system ||
1557       !chooser_entry->base_folder ||
1558       !_gtk_file_system_parse (chooser_entry->file_system,
1559                                chooser_entry->base_folder, text,
1560                                &folder_file, &file_part, &error))
1561     {
1562       if (g_error_matches (error, GTK_FILE_CHOOSER_ERROR, GTK_FILE_CHOOSER_ERROR_INCOMPLETE_HOSTNAME))
1563         {
1564           folder_file = NULL;
1565           result = REFRESH_INCOMPLETE_HOSTNAME;
1566         }
1567       else
1568         {
1569           folder_file = (chooser_entry->base_folder) ? g_object_ref (chooser_entry->base_folder) : NULL;
1570
1571           if (g_error_matches (error, GTK_FILE_CHOOSER_ERROR, GTK_FILE_CHOOSER_ERROR_NONEXISTENT))
1572             result = REFRESH_NONEXISTENT;
1573           else
1574             result = REFRESH_INVALID_INPUT;
1575         }
1576
1577       if (error)
1578         g_error_free (error);
1579
1580       file_part = g_strdup ("");
1581       file_part_pos = -1;
1582     }
1583   else
1584     {
1585       g_assert (folder_file != NULL);
1586
1587       file_part_len = strlen (file_part);
1588       total_len = strlen (text);
1589       if (total_len > file_part_len)
1590         file_part_pos = g_utf8_strlen (text, total_len - file_part_len);
1591       else
1592         file_part_pos = 0;
1593
1594       result = REFRESH_OK;
1595     }
1596
1597   g_free (text);
1598
1599   g_free (chooser_entry->file_part);
1600
1601   chooser_entry->file_part = file_part;
1602   chooser_entry->file_part_pos = file_part_pos;
1603
1604   if (result == REFRESH_OK)
1605     {
1606       result = reload_current_folder (chooser_entry, folder_file, file_part_pos == -1);
1607     }
1608   else
1609     {
1610       discard_current_folder (chooser_entry);
1611       discard_loading_and_current_folder_file (chooser_entry);
1612     }
1613
1614   if (folder_file)
1615     g_object_unref (folder_file);
1616
1617   g_assert (/* we are OK and we have a current folder file and (loading process or folder handle)... */
1618             ((result == REFRESH_OK)
1619              && (chooser_entry->current_folder_file != NULL)
1620              && (((chooser_entry->load_folder_cancellable != NULL) && (chooser_entry->current_folder == NULL))
1621                  || ((chooser_entry->load_folder_cancellable == NULL) && (chooser_entry->current_folder != NULL))))
1622             /* ... OR we have an error, and we don't have a current folder file nor a loading process nor a folder handle */
1623             || ((result != REFRESH_OK)
1624                 && (chooser_entry->current_folder_file == NULL)
1625                 && (chooser_entry->load_folder_cancellable == NULL)
1626                 && (chooser_entry->current_folder == NULL)));
1627
1628   return result;
1629 }
1630
1631 static void
1632 autocomplete (GtkFileChooserEntry *chooser_entry)
1633 {
1634   if (!(chooser_entry->current_folder != NULL
1635         && _gtk_folder_is_finished_loading (chooser_entry->current_folder)
1636         && gtk_editable_get_position (GTK_EDITABLE (chooser_entry)) == gtk_entry_get_text_length (GTK_ENTRY (chooser_entry))))
1637     return;
1638
1639   append_common_prefix (chooser_entry, TRUE, FALSE);
1640 }
1641
1642 static void
1643 start_autocompletion (GtkFileChooserEntry *chooser_entry)
1644 {
1645   RefreshStatus status;
1646
1647   status = refresh_current_folder_and_file_part (chooser_entry, REFRESH_UP_TO_CURSOR_POSITION);
1648
1649   switch (status)
1650     {
1651     case REFRESH_OK:
1652       g_assert (chooser_entry->current_folder_file != NULL);
1653
1654       if (chooser_entry->current_folder && _gtk_folder_is_finished_loading (chooser_entry->current_folder))
1655         autocomplete (chooser_entry);
1656       else
1657         chooser_entry->load_complete_action = LOAD_COMPLETE_AUTOCOMPLETE;
1658
1659       break;
1660
1661     case REFRESH_INVALID_INPUT:
1662     case REFRESH_INCOMPLETE_HOSTNAME:
1663     case REFRESH_NONEXISTENT:
1664     case REFRESH_NOT_LOCAL:
1665       /* We don't beep or anything, since this is autocompletion - the user
1666        * didn't request any action explicitly.
1667        */
1668       break;
1669
1670     default:
1671       g_assert_not_reached ();
1672     }
1673 }
1674
1675 static gboolean
1676 start_autocompletion_idle_handler (gpointer data)
1677 {
1678   GtkFileChooserEntry *chooser_entry = GTK_FILE_CHOOSER_ENTRY (data);
1679
1680   start_autocompletion (chooser_entry);
1681
1682   chooser_entry->start_autocompletion_idle_id = 0;
1683
1684   return FALSE;
1685 }
1686
1687 static void
1688 install_start_autocompletion_idle (GtkFileChooserEntry *chooser_entry)
1689 {
1690   if (chooser_entry->start_autocompletion_idle_id != 0)
1691     return;
1692
1693   chooser_entry->start_autocompletion_idle_id = gdk_threads_add_idle (start_autocompletion_idle_handler, chooser_entry);
1694 }
1695
1696 #ifdef G_OS_WIN32
1697 static gint
1698 insert_text_callback (GtkFileChooserEntry *chooser_entry,
1699                       const gchar         *new_text,
1700                       gint                 new_text_length,
1701                       gint                *position,
1702                       gpointer             user_data)
1703 {
1704   const gchar *colon = memchr (new_text, ':', new_text_length);
1705   gint i;
1706
1707   /* Disallow these characters altogether */
1708   for (i = 0; i < new_text_length; i++)
1709     {
1710       if (new_text[i] == '<' ||
1711           new_text[i] == '>' ||
1712           new_text[i] == '"' ||
1713           new_text[i] == '|' ||
1714           new_text[i] == '*' ||
1715           new_text[i] == '?')
1716         break;
1717     }
1718
1719   if (i < new_text_length ||
1720       /* Disallow entering text that would cause a colon to be anywhere except
1721        * after a drive letter.
1722        */
1723       (colon != NULL &&
1724        *position + (colon - new_text) != 1) ||
1725       (new_text_length > 0 &&
1726        *position <= 1 &&
1727        GTK_ENTRY (chooser_entry)->text_length >= 2 &&
1728        gtk_entry_get_text (GTK_ENTRY (chooser_entry))[1] == ':'))
1729     {
1730       gtk_widget_error_bell (GTK_WIDGET (chooser_entry));
1731       g_signal_stop_emission_by_name (chooser_entry, "insert_text");
1732       return FALSE;
1733     }
1734
1735   return TRUE;
1736 }
1737
1738 static void
1739 delete_text_callback (GtkFileChooserEntry *chooser_entry,
1740                       gint                 start_pos,
1741                       gint                 end_pos,
1742                       gpointer             user_data)
1743 {
1744   /* If deleting a drive letter, delete the colon, too */
1745   if (start_pos == 0 && end_pos == 1 &&
1746       GTK_ENTRY (chooser_entry)->text_length >= 2 &&
1747       gtk_entry_get_text (GTK_ENTRY (chooser_entry))[1] == ':')
1748     {
1749       g_signal_handlers_block_by_func (chooser_entry,
1750                                        G_CALLBACK (delete_text_callback),
1751                                        user_data);
1752       gtk_editable_delete_text (GTK_EDITABLE (chooser_entry), 0, 1);
1753       g_signal_handlers_unblock_by_func (chooser_entry,
1754                                          G_CALLBACK (delete_text_callback),
1755                                          user_data);
1756     }
1757 }
1758 #endif
1759
1760 /**
1761  * _gtk_file_chooser_entry_new:
1762  * @eat_tabs: If %FALSE, allow focus navigation with the tab key.
1763  *
1764  * Creates a new #GtkFileChooserEntry object. #GtkFileChooserEntry
1765  * is an internal implementation widget for the GTK+ file chooser
1766  * which is an entry with completion with respect to a
1767  * #GtkFileSystem object.
1768  *
1769  * Return value: the newly created #GtkFileChooserEntry
1770  **/
1771 GtkWidget *
1772 _gtk_file_chooser_entry_new (gboolean eat_tabs)
1773 {
1774   GtkFileChooserEntry *chooser_entry;
1775
1776   chooser_entry = g_object_new (GTK_TYPE_FILE_CHOOSER_ENTRY, NULL);
1777   chooser_entry->eat_tabs = (eat_tabs != FALSE);
1778
1779   return GTK_WIDGET (chooser_entry);
1780 }
1781
1782 /**
1783  * _gtk_file_chooser_entry_set_file_system:
1784  * @chooser_entry: a #GtkFileChooser
1785  * @file_system: an object implementing #GtkFileSystem
1786  *
1787  * Sets the file system for @chooser_entry.
1788  **/
1789 void
1790 _gtk_file_chooser_entry_set_file_system (GtkFileChooserEntry *chooser_entry,
1791                                          GtkFileSystem       *file_system)
1792 {
1793   g_return_if_fail (GTK_IS_FILE_CHOOSER_ENTRY (chooser_entry));
1794   g_return_if_fail (GTK_IS_FILE_SYSTEM (file_system));
1795
1796   if (file_system != chooser_entry->file_system)
1797     {
1798       if (chooser_entry->file_system)
1799         g_object_unref (chooser_entry->file_system);
1800
1801       chooser_entry->file_system = g_object_ref (file_system);
1802     }
1803 }
1804
1805 /**
1806  * _gtk_file_chooser_entry_set_base_folder:
1807  * @chooser_entry: a #GtkFileChooserEntry
1808  * @file: file for a folder in the chooser entries current file system.
1809  *
1810  * Sets the folder with respect to which completions occur.
1811  **/
1812 void
1813 _gtk_file_chooser_entry_set_base_folder (GtkFileChooserEntry *chooser_entry,
1814                                          GFile               *file)
1815 {
1816   if (chooser_entry->base_folder)
1817     g_object_unref (chooser_entry->base_folder);
1818
1819   chooser_entry->base_folder = file;
1820
1821   if (chooser_entry->base_folder)
1822     g_object_ref (chooser_entry->base_folder);
1823
1824   clear_completions (chooser_entry);
1825   _gtk_file_chooser_entry_select_filename (chooser_entry);
1826 }
1827
1828 /**
1829  * _gtk_file_chooser_entry_get_current_folder:
1830  * @chooser_entry: a #GtkFileChooserEntry
1831  *
1832  * Gets the current folder for the #GtkFileChooserEntry. If the
1833  * user has only entered a filename, this will be in the base folder
1834  * (see _gtk_file_chooser_entry_set_base_folder()), but if the
1835  * user has entered a relative or absolute path, then it will
1836  * be different.  If the user has entered unparsable text, or text which
1837  * the entry cannot handle, this will return %NULL.
1838  *
1839  * Return value: the file for the current folder - this value is owned by the
1840  *  chooser entry and must not be modified or freed.
1841  **/
1842 GFile *
1843 _gtk_file_chooser_entry_get_current_folder (GtkFileChooserEntry *chooser_entry)
1844 {
1845   commit_completion_and_refresh (chooser_entry);
1846   return chooser_entry->current_folder_file;
1847 }
1848
1849 /**
1850  * _gtk_file_chooser_entry_get_file_part:
1851  * @chooser_entry: a #GtkFileChooserEntry
1852  *
1853  * Gets the non-folder portion of whatever the user has entered
1854  * into the file selector. What is returned is a UTF-8 string,
1855  * and if a filename path is needed, g_file_get_child_for_display_name()
1856  * must be used
1857   *
1858  * Return value: the entered filename - this value is owned by the
1859  *  chooser entry and must not be modified or freed.
1860  **/
1861 const gchar *
1862 _gtk_file_chooser_entry_get_file_part (GtkFileChooserEntry *chooser_entry)
1863 {
1864   commit_completion_and_refresh (chooser_entry);
1865   return chooser_entry->file_part;
1866 }
1867
1868 /**
1869  * _gtk_file_chooser_entry_set_file_part:
1870  * @chooser_entry: a #GtkFileChooserEntry
1871  * @file_part: text to display in the entry, in UTF-8
1872  *
1873  * Sets the current text shown in the file chooser entry.
1874  **/
1875 void
1876 _gtk_file_chooser_entry_set_file_part (GtkFileChooserEntry *chooser_entry,
1877                                        const gchar         *file_part)
1878 {
1879   g_return_if_fail (GTK_IS_FILE_CHOOSER_ENTRY (chooser_entry));
1880
1881   chooser_entry->in_change = TRUE;
1882   clear_completions (chooser_entry);
1883   gtk_entry_set_text (GTK_ENTRY (chooser_entry), file_part);
1884   chooser_entry->in_change = FALSE;
1885 }
1886
1887
1888 /**
1889  * _gtk_file_chooser_entry_set_action:
1890  * @chooser_entry: a #GtkFileChooserEntry
1891  * @action: the action which is performed by the file selector using this entry
1892  *
1893  * Sets action which is performed by the file selector using this entry.
1894  * The #GtkFileChooserEntry will use different completion strategies for
1895  * different actions.
1896  **/
1897 void
1898 _gtk_file_chooser_entry_set_action (GtkFileChooserEntry *chooser_entry,
1899                                     GtkFileChooserAction action)
1900 {
1901   g_return_if_fail (GTK_IS_FILE_CHOOSER_ENTRY (chooser_entry));
1902
1903   if (chooser_entry->action != action)
1904     {
1905       GtkEntryCompletion *comp;
1906
1907       chooser_entry->action = action;
1908
1909       comp = gtk_entry_get_completion (GTK_ENTRY (chooser_entry));
1910
1911       /* FIXME: do we need to actually set the following? */
1912
1913       switch (action)
1914         {
1915         case GTK_FILE_CHOOSER_ACTION_OPEN:
1916         case GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER:
1917           gtk_entry_completion_set_popup_single_match (comp, FALSE);
1918           break;
1919         case GTK_FILE_CHOOSER_ACTION_SAVE:
1920         case GTK_FILE_CHOOSER_ACTION_CREATE_FOLDER:
1921           gtk_entry_completion_set_popup_single_match (comp, TRUE);
1922           break;
1923         }
1924     }
1925 }
1926
1927
1928 /**
1929  * _gtk_file_chooser_entry_get_action:
1930  * @chooser_entry: a #GtkFileChooserEntry
1931  *
1932  * Gets the action for this entry.
1933  *
1934  * Returns: the action
1935  **/
1936 GtkFileChooserAction
1937 _gtk_file_chooser_entry_get_action (GtkFileChooserEntry *chooser_entry)
1938 {
1939   g_return_val_if_fail (GTK_IS_FILE_CHOOSER_ENTRY (chooser_entry),
1940                         GTK_FILE_CHOOSER_ACTION_OPEN);
1941
1942   return chooser_entry->action;
1943 }
1944
1945 gboolean
1946 _gtk_file_chooser_entry_get_is_folder (GtkFileChooserEntry *chooser_entry,
1947                                        GFile               *file)
1948 {
1949   gboolean retval = FALSE;
1950
1951   if (chooser_entry->current_folder)
1952     {
1953       GFileInfo *file_info;
1954
1955       file_info = _gtk_folder_get_info (chooser_entry->current_folder, file);
1956
1957       if (file_info)
1958         {
1959           retval = _gtk_file_info_consider_as_directory (file_info);
1960           g_object_unref (file_info);
1961         }
1962     }
1963
1964   return retval;
1965 }
1966
1967
1968 /*
1969  * _gtk_file_chooser_entry_select_filename:
1970  * @chooser_entry: a #GtkFileChooserEntry
1971  *
1972  * Selects the filename (without the extension) for user edition.
1973  */
1974 void
1975 _gtk_file_chooser_entry_select_filename (GtkFileChooserEntry *chooser_entry)
1976 {
1977   const gchar *str, *ext;
1978   glong len = -1;
1979
1980   if (chooser_entry->action == GTK_FILE_CHOOSER_ACTION_SAVE)
1981     {
1982       str = gtk_entry_get_text (GTK_ENTRY (chooser_entry));
1983       ext = g_strrstr (str, ".");
1984
1985       if (ext)
1986        len = g_utf8_pointer_to_offset (str, ext);
1987     }
1988
1989   gtk_editable_select_region (GTK_EDITABLE (chooser_entry), 0, (gint) len);
1990 }
1991
1992 void
1993 _gtk_file_chooser_entry_set_local_only (GtkFileChooserEntry *chooser_entry,
1994                                         gboolean             local_only)
1995 {
1996   chooser_entry->local_only = local_only;
1997   clear_completions (chooser_entry);
1998 }
1999
2000 gboolean
2001 _gtk_file_chooser_entry_get_local_only (GtkFileChooserEntry *chooser_entry)
2002 {
2003   return chooser_entry->local_only;
2004 }