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
  23 #include "gtkfilechooserentry.h"
  24
  25 #include <string.h>
  26
  27 #include "gtkcelllayout.h"
  28 #include "gtkcellrenderertext.h"
  29 #include "gtkentry.h"
  30 #include "gtkfilesystemmodel.h"
  31 #include "gtklabel.h"
  32 #include "gtkmain.h"
  33 #include "gtksizerequest.h"
  34 #include "gtkwindow.h"
  35 #include "gtkintl.h"
  36
  37 typedef struct _GtkFileChooserEntryClass GtkFileChooserEntryClass;
  38
  39 #define GTK_FILE_CHOOSER_ENTRY_CLASS(klass)     (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_FILE_CHOOSER_ENTRY, GtkFileChooserEntryClass))
  40 #define GTK_IS_FILE_CHOOSER_ENTRY_CLASS(klass)  (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_FILE_CHOOSER_ENTRY))
  41 #define GTK_FILE_CHOOSER_ENTRY_GET_CLASS(obj)   (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_FILE_CHOOSER_ENTRY, GtkFileChooserEntryClass))
  42
  43 struct _GtkFileChooserEntryClass
  44 {
  45   GtkEntryClass parent_class;
  46 };
  47
  48 struct _GtkFileChooserEntry
  49 {
  50   GtkEntry parent_instance;
  51
  52   GtkFileChooserAction action;
  53
  54   GFile *base_folder;
  55   GFile *current_folder_file;
  56   gchar *dir_part;
  57   gchar *file_part;
  58
  59   GtkTreeModel *completion_store;
  60
  61   guint current_folder_loaded : 1;
  62   guint complete_on_load : 1;
  63   guint eat_tabs       : 1;
  64   guint local_only     : 1;
  65 };
  66
  67 enum
  68 {
  69   DISPLAY_NAME_COLUMN,
  70   FULL_PATH_COLUMN,
  71   N_COLUMNS
  72 };
  73
  74 static void     gtk_file_chooser_entry_finalize       (GObject          *object);
  75 static void     gtk_file_chooser_entry_dispose        (GObject          *object);
  76 static void     gtk_file_chooser_entry_grab_focus     (GtkWidget        *widget);
  77 static gboolean gtk_file_chooser_entry_key_press_event (GtkWidget *widget,
  78                                                         GdkEventKey *event);
  79 static gboolean gtk_file_chooser_entry_focus_out_event (GtkWidget       *widget,
  80                                                         GdkEventFocus   *event);
  81
  82 #ifdef G_OS_WIN32
  83 static gint     insert_text_callback      (GtkFileChooserEntry *widget,
  84                                            const gchar         *new_text,
  85                                            gint                 new_text_length,
  86                                            gint                *position,
  87                                            gpointer             user_data);
  88 static void     delete_text_callback      (GtkFileChooserEntry *widget,
  89                                            gint                 start_pos,
  90                                            gint                 end_pos,
  91                                            gpointer             user_data);
  92 #endif
  93
  94 static gboolean match_selected_callback   (GtkEntryCompletion  *completion,
  95                                            GtkTreeModel        *model,
  96                                            GtkTreeIter         *iter,
  97                                            GtkFileChooserEntry *chooser_entry);
  98
  99 static void set_complete_on_load (GtkFileChooserEntry *chooser_entry,
 100                                   gboolean             complete_on_load);
 101 static void refresh_current_folder_and_file_part (GtkFileChooserEntry *chooser_entry);
 102 static void set_completion_folder (GtkFileChooserEntry *chooser_entry,
 103                                    GFile               *folder);
 104 static void finished_loading_cb (GtkFileSystemModel  *model,
 105                                  GError              *error,
 106                                  GtkFileChooserEntry *chooser_entry);
 107
 108 G_DEFINE_TYPE (GtkFileChooserEntry, _gtk_file_chooser_entry, GTK_TYPE_ENTRY)
 109
 110 static char *
 111 gtk_file_chooser_entry_get_completion_text (GtkFileChooserEntry *chooser_entry)
 112 {
 113   GtkEditable *editable = GTK_EDITABLE (chooser_entry);
 114   int start, end;
 115
 116   gtk_editable_get_selection_bounds (editable, &start, &end);
 117   return gtk_editable_get_chars (editable, 0, MIN (start, end));
 118 }
 119
 120 static void
 121 gtk_file_chooser_entry_dispatch_properties_changed (GObject     *object,
 122                                                     guint        n_pspecs,
 123                                                     GParamSpec **pspecs)
 124 {
 125   GtkFileChooserEntry *chooser_entry = GTK_FILE_CHOOSER_ENTRY (object);
 126   guint i;
 127
 128   G_OBJECT_CLASS (_gtk_file_chooser_entry_parent_class)->dispatch_properties_changed (object, n_pspecs, pspecs);
 129
 130   /* What we are after: The text in front of the cursor was modified.
 131    * Unfortunately, there's no other way to catch this. */
 132
 133   for (i = 0; i < n_pspecs; i++)
 134     {
 135       if (pspecs[i]->name == I_("cursor-position") ||
 136           pspecs[i]->name == I_("selection-bound") ||
 137           pspecs[i]->name == I_("text"))
 138         {
 139           set_complete_on_load (chooser_entry, FALSE);
 140           refresh_current_folder_and_file_part (chooser_entry);
 141           break;
 142         }
 143     }
 144 }
 145
 146 static void
 147 _gtk_file_chooser_entry_class_init (GtkFileChooserEntryClass *class)
 148 {
 149   GObjectClass *gobject_class = G_OBJECT_CLASS (class);
 150   GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
 151
 152   gobject_class->finalize = gtk_file_chooser_entry_finalize;
 153   gobject_class->dispose = gtk_file_chooser_entry_dispose;
 154   gobject_class->dispatch_properties_changed = gtk_file_chooser_entry_dispatch_properties_changed;
 155
 156   widget_class->grab_focus = gtk_file_chooser_entry_grab_focus;
 157   widget_class->key_press_event = gtk_file_chooser_entry_key_press_event;
 158   widget_class->focus_out_event = gtk_file_chooser_entry_focus_out_event;
 159 }
 160
 161 static void
 162 _gtk_file_chooser_entry_init (GtkFileChooserEntry *chooser_entry)
 163 {
 164   GtkEntryCompletion *comp;
 165   GtkCellRenderer *cell;
 166
 167   chooser_entry->local_only = TRUE;
 168
 169   g_object_set (chooser_entry, "truncate-multiline", TRUE, NULL);
 170
 171   comp = gtk_entry_completion_new ();
 172   gtk_entry_completion_set_popup_single_match (comp, FALSE);
 173   gtk_entry_completion_set_minimum_key_length (comp, 0);
 174   /* see docs for gtk_entry_completion_set_text_column() */
 175   g_object_set (comp, "text-column", FULL_PATH_COLUMN, NULL);
 176
 177   /* Need a match func here or entry completion uses a wrong one.
 178    * We do our own filtering after all. */
 179   gtk_entry_completion_set_match_func (comp,
 180                                        (GtkEntryCompletionMatchFunc) gtk_true,
 181                                        chooser_entry,
 182                                        NULL);
 183
 184   cell = gtk_cell_renderer_text_new ();
 185   gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (comp),
 186                               cell, TRUE);
 187   gtk_cell_layout_add_attribute (GTK_CELL_LAYOUT (comp),
 188                                  cell,
 189                                  "text", DISPLAY_NAME_COLUMN);
 190
 191   g_signal_connect (comp, "match-selected",
 192                     G_CALLBACK (match_selected_callback), chooser_entry);
 193
 194   gtk_entry_set_completion (GTK_ENTRY (chooser_entry), comp);
 195   g_object_unref (comp);
 196
 197 #ifdef G_OS_WIN32
 198   g_signal_connect (chooser_entry, "insert-text",
 199                     G_CALLBACK (insert_text_callback), NULL);
 200   g_signal_connect (chooser_entry, "delete-text",
 201                     G_CALLBACK (delete_text_callback), NULL);
 202 #endif
 203 }
 204
 205 static void
 206 gtk_file_chooser_entry_finalize (GObject *object)
 207 {
 208   GtkFileChooserEntry *chooser_entry = GTK_FILE_CHOOSER_ENTRY (object);
 209
 210   if (chooser_entry->base_folder)
 211     g_object_unref (chooser_entry->base_folder);
 212
 213   if (chooser_entry->current_folder_file)
 214     g_object_unref (chooser_entry->current_folder_file);
 215
 216   g_free (chooser_entry->dir_part);
 217   g_free (chooser_entry->file_part);
 218
 219   G_OBJECT_CLASS (_gtk_file_chooser_entry_parent_class)->finalize (object);
 220 }
 221
 222 static void
 223 gtk_file_chooser_entry_dispose (GObject *object)
 224 {
 225   GtkFileChooserEntry *chooser_entry = GTK_FILE_CHOOSER_ENTRY (object);
 226
 227   set_completion_folder (chooser_entry, NULL);
 228
 229   G_OBJECT_CLASS (_gtk_file_chooser_entry_parent_class)->dispose (object);
 230 }
 231
 232 /* Match functions for the GtkEntryCompletion */
 233 static gboolean
 234 match_selected_callback (GtkEntryCompletion  *completion,
 235                          GtkTreeModel        *model,
 236                          GtkTreeIter         *iter,
 237                          GtkFileChooserEntry *chooser_entry)
 238 {
 239   char *path;
 240
 241   gtk_tree_model_get (model, iter,
 242                       FULL_PATH_COLUMN, &path,
 243                       -1);
 244
 245   gtk_editable_delete_text (GTK_EDITABLE (chooser_entry),
 246                             0,
 247                             gtk_editable_get_position (GTK_EDITABLE (chooser_entry)));
 248   gtk_editable_insert_text (GTK_EDITABLE (chooser_entry),
 249                             path,
 250                             0,
 251                             NULL);
 252
 253   g_free (path);
 254
 255   return TRUE;
 256 }
 257
 258 static void
 259 set_complete_on_load (GtkFileChooserEntry *chooser_entry,
 260                       gboolean             complete_on_load)
 261 {
 262   /* a completion was triggered, but we couldn't do it.
 263    * So no text was inserted when pressing tab, so we beep */
 264   if (chooser_entry->complete_on_load && !complete_on_load)
 265     gtk_widget_error_bell (GTK_WIDGET (chooser_entry));
 266
 267   chooser_entry->complete_on_load = complete_on_load;
 268 }
 269
 270 static gboolean
 271 is_valid_scheme_character (char c)
 272 {
 273   return g_ascii_isalnum (c) || c == '+' || c == '-' || c == '.';
 274 }
 275
 276 static gboolean
 277 has_uri_scheme (const char *str)
 278 {
 279   const char *p;
 280
 281   p = str;
 282
 283   if (!is_valid_scheme_character (*p))
 284     return FALSE;
 285
 286   do
 287     p++;
 288   while (is_valid_scheme_character (*p));
 289
 290   return (strncmp (p, "://", 3) == 0);
 291 }
 292
 293 static GFile *
 294 gtk_file_chooser_get_file_for_text (GtkFileChooserEntry *chooser_entry,
 295                                     const gchar         *str)
 296 {
 297   GFile *file;
 298
 299   if (str[0] == '~' || g_path_is_absolute (str) || has_uri_scheme (str))
 300     file = g_file_parse_name (str);
 301   else if (chooser_entry->base_folder != NULL)
 302     file = g_file_resolve_relative_path (chooser_entry->base_folder, str);
 303   else
 304     file = NULL;
 305
 306   return file;
 307 }
 308
 309 static GFile *
 310 gtk_file_chooser_get_directory_for_text (GtkFileChooserEntry *chooser_entry,
 311                                          const char *         text)
 312 {
 313   GFile *file, *parent;
 314
 315   file = gtk_file_chooser_get_file_for_text (chooser_entry, text);
 316
 317   if (file == NULL)
 318     return NULL;
 319
 320   if (text[0] == 0 || text[strlen (text) - 1] == G_DIR_SEPARATOR)
 321     return file;
 322
 323   parent = g_file_get_parent (file);
 324   g_object_unref (file);
 325
 326   return parent;
 327 }
 328
 329 /* Finds a common prefix based on the contents of the entry
 330  * and mandatorily appends it
 331  */
 332 static void
 333 explicitly_complete (GtkFileChooserEntry *chooser_entry)
 334 {
 335   chooser_entry->complete_on_load = FALSE;
 336
 337   if (chooser_entry->completion_store)
 338     {
 339       char *completion, *text;
 340       gsize completion_len, text_len;
 341
 342       text = gtk_file_chooser_entry_get_completion_text (chooser_entry);
 343       text_len = strlen (text);
 344       completion = gtk_entry_completion_compute_prefix (gtk_entry_get_completion (GTK_ENTRY (chooser_entry)), text);
 345       completion_len = completion ? strlen (completion) : 0;
 346
 347       if (completion_len > text_len)
 348         {
 349           GtkEditable *editable = GTK_EDITABLE (chooser_entry);
 350           int pos = gtk_editable_get_position (editable);
 351
 352           gtk_editable_insert_text (editable,
 353                                     completion + text_len,
 354                                     completion_len - text_len,
 355                                     &pos);
 356           gtk_editable_set_position (editable, pos);
 357           return;
 358         }
 359     }
 360
 361   gtk_widget_error_bell (GTK_WIDGET (chooser_entry));
 362 }
 363
 364 static void
 365 gtk_file_chooser_entry_grab_focus (GtkWidget *widget)
 366 {
 367   GTK_WIDGET_CLASS (_gtk_file_chooser_entry_parent_class)->grab_focus (widget);
 368   _gtk_file_chooser_entry_select_filename (GTK_FILE_CHOOSER_ENTRY (widget));
 369 }
 370
 371 static void
 372 start_explicit_completion (GtkFileChooserEntry *chooser_entry)
 373 {
 374   if (chooser_entry->current_folder_loaded)
 375     explicitly_complete (chooser_entry);
 376   else
 377     set_complete_on_load (chooser_entry, TRUE);
 378 }
 379
 380 static gboolean
 381 gtk_file_chooser_entry_key_press_event (GtkWidget *widget,
 382                                         GdkEventKey *event)
 383 {
 384   GtkFileChooserEntry *chooser_entry;
 385   GtkEditable *editable;
 386   GdkModifierType state;
 387   gboolean control_pressed;
 388
 389   chooser_entry = GTK_FILE_CHOOSER_ENTRY (widget);
 390   editable = GTK_EDITABLE (widget);
 391
 392   if (!chooser_entry->eat_tabs)
 393     return GTK_WIDGET_CLASS (_gtk_file_chooser_entry_parent_class)->key_press_event (widget, event);
 394
 395   control_pressed = FALSE;
 396
 397   if (gtk_get_current_event_state (&state))
 398     {
 399       if ((state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
 400         control_pressed = TRUE;
 401     }
 402
 403   /* This is a bit evil -- it makes Tab never leave the entry. It basically
 404    * makes it 'safe' for people to hit. */
 405   if (event->keyval == GDK_KEY_Tab && !control_pressed)
 406     {
 407       gint start, end;
 408
 409       gtk_editable_get_selection_bounds (editable, &start, &end);
 410
 411       if (start != end)
 412         gtk_editable_set_position (editable, MAX (start, end));
 413       else
 414         start_explicit_completion (chooser_entry);
 415
 416       return TRUE;
 417      }
 418
 419   return GTK_WIDGET_CLASS (_gtk_file_chooser_entry_parent_class)->key_press_event (widget, event);
 420
 421 }
 422
 423 static gboolean
 424 gtk_file_chooser_entry_focus_out_event (GtkWidget     *widget,
 425                                         GdkEventFocus *event)
 426 {
 427   GtkFileChooserEntry *chooser_entry = GTK_FILE_CHOOSER_ENTRY (widget);
 428
 429   set_complete_on_load (chooser_entry, FALSE);
 430
 431   return GTK_WIDGET_CLASS (_gtk_file_chooser_entry_parent_class)->focus_out_event (widget, event);
 432 }
 433
 434 static void
 435 discard_completion_store (GtkFileChooserEntry *chooser_entry)
 436 {
 437   if (!chooser_entry->completion_store)
 438     return;
 439
 440   gtk_entry_completion_set_model (gtk_entry_get_completion (GTK_ENTRY (chooser_entry)), NULL);
 441   gtk_entry_completion_set_inline_completion (gtk_entry_get_completion (GTK_ENTRY (chooser_entry)), FALSE);
 442   g_object_unref (chooser_entry->completion_store);
 443   chooser_entry->completion_store = NULL;
 444 }
 445
 446 static gboolean
 447 completion_store_set (GtkFileSystemModel  *model,
 448                       GFile               *file,
 449                       GFileInfo           *info,
 450                       int                  column,
 451                       GValue              *value,
 452                       gpointer             data)
 453 {
 454   GtkFileChooserEntry *chooser_entry = data;
 455
 456   const char *prefix = "";
 457   const char *suffix = "";
 458
 459   switch (column)
 460     {
 461     case FULL_PATH_COLUMN:
 462       prefix = chooser_entry->dir_part;
 463       /* fall through */
 464     case DISPLAY_NAME_COLUMN:
 465       if (_gtk_file_info_consider_as_directory (info))
 466         suffix = G_DIR_SEPARATOR_S;
 467
 468       g_value_take_string (value, g_strconcat (
 469               prefix,
 470               g_file_info_get_display_name (info),
 471               suffix,
 472               NULL));
 473       break;
 474     default:
 475       g_assert_not_reached ();
 476       break;
 477     }
 478
 479   return TRUE;
 480 }
 481
 482 /* Fills the completion store from the contents of the current folder */
 483 static void
 484 populate_completion_store (GtkFileChooserEntry *chooser_entry)
 485 {
 486   chooser_entry->completion_store = GTK_TREE_MODEL (
 487       _gtk_file_system_model_new_for_directory (chooser_entry->current_folder_file,
 488                                                 "standard::name,standard::display-name,standard::type",
 489                                                 completion_store_set,
 490                                                 chooser_entry,
 491                                                 N_COLUMNS,
 492                                                 G_TYPE_STRING,
 493                                                 G_TYPE_STRING));
 494   g_signal_connect (chooser_entry->completion_store, "finished-loading",
 495                     G_CALLBACK (finished_loading_cb), chooser_entry);
 496
 497   _gtk_file_system_model_set_filter_folders (GTK_FILE_SYSTEM_MODEL (chooser_entry->completion_store),
 498                                              TRUE);
 499   _gtk_file_system_model_set_show_files (GTK_FILE_SYSTEM_MODEL (chooser_entry->completion_store),
 500                                          chooser_entry->action == GTK_FILE_CHOOSER_ACTION_OPEN ||
 501                                          chooser_entry->action == GTK_FILE_CHOOSER_ACTION_SAVE);
 502   gtk_tree_sortable_set_sort_column_id (GTK_TREE_SORTABLE (chooser_entry->completion_store),
 503                                         DISPLAY_NAME_COLUMN, GTK_SORT_ASCENDING);
 504
 505   gtk_entry_completion_set_model (gtk_entry_get_completion (GTK_ENTRY (chooser_entry)),
 506                                   chooser_entry->completion_store);
 507 }
 508
 509 /* Callback when the current folder finishes loading */
 510 static void
 511 finished_loading_cb (GtkFileSystemModel  *model,
 512                      GError              *error,
 513                      GtkFileChooserEntry *chooser_entry)
 514 {
 515   GtkEntryCompletion *completion;
 516
 517   chooser_entry->current_folder_loaded = TRUE;
 518
 519   if (error)
 520     {
 521       discard_completion_store (chooser_entry);
 522       set_complete_on_load (chooser_entry, FALSE);
 523       return;
 524     }
 525
 526   if (chooser_entry->complete_on_load)
 527     explicitly_complete (chooser_entry);
 528
 529   gtk_widget_set_tooltip_text (GTK_WIDGET (chooser_entry), NULL);
 530
 531   completion = gtk_entry_get_completion (GTK_ENTRY (chooser_entry));
 532   gtk_entry_completion_set_inline_completion (completion, TRUE);
 533   gtk_entry_completion_complete (completion);
 534   gtk_entry_completion_insert_prefix (completion);
 535 }
 536
 537 static void
 538 set_completion_folder (GtkFileChooserEntry *chooser_entry,
 539                        GFile               *folder_file)
 540 {
 541   if (folder_file &&
 542       chooser_entry->local_only
 543       && !g_file_is_native (folder_file))
 544     folder_file = NULL;
 545
 546   if ((chooser_entry->current_folder_file
 547        && folder_file
 548        && g_file_equal (folder_file, chooser_entry->current_folder_file))
 549       || chooser_entry->current_folder_file == folder_file)
 550     return;
 551
 552   if (chooser_entry->current_folder_file)
 553     {
 554       g_object_unref (chooser_entry->current_folder_file);
 555       chooser_entry->current_folder_file = NULL;
 556     }
 557
 558   chooser_entry->current_folder_loaded = FALSE;
 559
 560   discard_completion_store (chooser_entry);
 561
 562   if (folder_file)
 563     {
 564       chooser_entry->current_folder_file = g_object_ref (folder_file);
 565       populate_completion_store (chooser_entry);
 566     }
 567 }
 568
 569 static void
 570 refresh_current_folder_and_file_part (GtkFileChooserEntry *chooser_entry)
 571 {
 572   GFile *folder_file;
 573   char *text, *last_slash, *old_file_part;
 574
 575   old_file_part = chooser_entry->file_part;
 576   g_free (chooser_entry->dir_part);
 577
 578   text = gtk_file_chooser_entry_get_completion_text (chooser_entry);
 579
 580   last_slash = strrchr (text, G_DIR_SEPARATOR);
 581   if (last_slash)
 582     {
 583       chooser_entry->dir_part = g_strndup (text, last_slash - text + 1);
 584       chooser_entry->file_part = g_strdup (last_slash + 1);
 585     }
 586   else
 587     {
 588       chooser_entry->dir_part = g_strdup ("");
 589       chooser_entry->file_part = g_strdup (text);
 590     }
 591
 592   folder_file = gtk_file_chooser_get_directory_for_text (chooser_entry, text);
 593   set_completion_folder (chooser_entry, folder_file);
 594   if (folder_file)
 595     g_object_unref (folder_file);
 596
 597   if (chooser_entry->completion_store &&
 598       (g_strcmp0 (old_file_part, chooser_entry->file_part) != 0))
 599     {
 600       GtkFileFilter *filter;
 601       char *pattern;
 602
 603       filter = gtk_file_filter_new ();
 604       pattern = g_strconcat (chooser_entry->file_part, "*", NULL);
 605       gtk_file_filter_add_pattern (filter, pattern);
 606
 607       _gtk_file_system_model_set_filter (GTK_FILE_SYSTEM_MODEL (chooser_entry->completion_store),
 608                                          filter);
 609
 610       g_free (pattern);
 611       g_object_unref (filter);
 612     }
 613
 614   g_free (text);
 615   g_free (old_file_part);
 616 }
 617
 618 #ifdef G_OS_WIN32
 619 static gint
 620 insert_text_callback (GtkFileChooserEntry *chooser_entry,
 621                       const gchar         *new_text,
 622                       gint                 new_text_length,
 623                       gint                *position,
 624                       gpointer             user_data)
 625 {
 626   const gchar *colon = memchr (new_text, ':', new_text_length);
 627   gint i;
 628
 629   /* Disallow these characters altogether */
 630   for (i = 0; i < new_text_length; i++)
 631     {
 632       if (new_text[i] == '<' ||
 633           new_text[i] == '>' ||
 634           new_text[i] == '"' ||
 635           new_text[i] == '|' ||
 636           new_text[i] == '*' ||
 637           new_text[i] == '?')
 638         break;
 639     }
 640
 641   if (i < new_text_length ||
 642       /* Disallow entering text that would cause a colon to be anywhere except
 643        * after a drive letter.
 644        */
 645       (colon != NULL &&
 646        *position + (colon - new_text) != 1) ||
 647       (new_text_length > 0 &&
 648        *position <= 1 &&
 649        gtk_entry_get_text_length (GTK_ENTRY (chooser_entry)) >= 2 &&
 650        gtk_entry_get_text (GTK_ENTRY (chooser_entry))[1] == ':'))
 651     {
 652       gtk_widget_error_bell (GTK_WIDGET (chooser_entry));
 653       g_signal_stop_emission_by_name (chooser_entry, "insert_text");
 654       return FALSE;
 655     }
 656
 657   return TRUE;
 658 }
 659
 660 static void
 661 delete_text_callback (GtkFileChooserEntry *chooser_entry,
 662                       gint                 start_pos,
 663                       gint                 end_pos,
 664                       gpointer             user_data)
 665 {
 666   /* If deleting a drive letter, delete the colon, too */
 667   if (start_pos == 0 && end_pos == 1 &&
 668       gtk_entry_get_text_length (GTK_ENTRY (chooser_entry)) >= 2 &&
 669       gtk_entry_get_text (GTK_ENTRY (chooser_entry))[1] == ':')
 670     {
 671       g_signal_handlers_block_by_func (chooser_entry,
 672                                        G_CALLBACK (delete_text_callback),
 673                                        user_data);
 674       gtk_editable_delete_text (GTK_EDITABLE (chooser_entry), 0, 1);
 675       g_signal_handlers_unblock_by_func (chooser_entry,
 676                                          G_CALLBACK (delete_text_callback),
 677                                          user_data);
 678     }
 679 }
 680 #endif
 681
 682 /**
 683  * _gtk_file_chooser_entry_new:
 684  * @eat_tabs: If %FALSE, allow focus navigation with the tab key.
 685  *
 686  * Creates a new #GtkFileChooserEntry object. #GtkFileChooserEntry
 687  * is an internal implementation widget for the GTK+ file chooser
 688  * which is an entry with completion with respect to a
 689  * #GtkFileSystem object.
 690  *
 691  * Return value: the newly created #GtkFileChooserEntry
 692  **/
 693 GtkWidget *
 694 _gtk_file_chooser_entry_new (gboolean       eat_tabs)
 695 {
 696   GtkFileChooserEntry *chooser_entry;
 697
 698   chooser_entry = g_object_new (GTK_TYPE_FILE_CHOOSER_ENTRY, NULL);
 699   chooser_entry->eat_tabs = (eat_tabs != FALSE);
 700
 701   return GTK_WIDGET (chooser_entry);
 702 }
 703
 704 /**
 705  * _gtk_file_chooser_entry_set_base_folder:
 706  * @chooser_entry: a #GtkFileChooserEntry
 707  * @file: file for a folder in the chooser entries current file system.
 708  *
 709  * Sets the folder with respect to which completions occur.
 710  **/
 711 void
 712 _gtk_file_chooser_entry_set_base_folder (GtkFileChooserEntry *chooser_entry,
 713                                          GFile               *file)
 714 {
 715   g_return_if_fail (GTK_IS_FILE_CHOOSER_ENTRY (chooser_entry));
 716   g_return_if_fail (file == NULL || G_IS_FILE (file));
 717
 718   if (chooser_entry->base_folder == file ||
 719       (file != NULL && chooser_entry->base_folder != NULL
 720        && g_file_equal (chooser_entry->base_folder, file)))
 721     return;
 722
 723   if (file)
 724     g_object_ref (file);
 725
 726   if (chooser_entry->base_folder)
 727     g_object_unref (chooser_entry->base_folder);
 728
 729   chooser_entry->base_folder = file;
 730
 731   refresh_current_folder_and_file_part (chooser_entry);
 732 }
 733
 734 /**
 735  * _gtk_file_chooser_entry_get_current_folder:
 736  * @chooser_entry: a #GtkFileChooserEntry
 737  *
 738  * Gets the current folder for the #GtkFileChooserEntry. If the
 739  * user has only entered a filename, this will be in the base folder
 740  * (see _gtk_file_chooser_entry_set_base_folder()), but if the
 741  * user has entered a relative or absolute path, then it will
 742  * be different.  If the user has entered unparsable text, or text which
 743  * the entry cannot handle, this will return %NULL.
 744  *
 745  * Return value: the file for the current folder - you must g_object_unref()
 746  *   the value after use.
 747  **/
 748 GFile *
 749 _gtk_file_chooser_entry_get_current_folder (GtkFileChooserEntry *chooser_entry)
 750 {
 751   g_return_val_if_fail (GTK_IS_FILE_CHOOSER_ENTRY (chooser_entry), NULL);
 752
 753   return gtk_file_chooser_get_directory_for_text (chooser_entry,
 754                                                   gtk_entry_get_text (GTK_ENTRY (chooser_entry)));
 755 }
 756
 757 /**
 758  * _gtk_file_chooser_entry_get_file_part:
 759  * @chooser_entry: a #GtkFileChooserEntry
 760  *
 761  * Gets the non-folder portion of whatever the user has entered
 762  * into the file selector. What is returned is a UTF-8 string,
 763  * and if a filename path is needed, g_file_get_child_for_display_name()
 764  * must be used
 765   *
 766  * Return value: the entered filename - this value is owned by the
 767  *  chooser entry and must not be modified or freed.
 768  **/
 769 const gchar *
 770 _gtk_file_chooser_entry_get_file_part (GtkFileChooserEntry *chooser_entry)
 771 {
 772   const char *last_slash, *text;
 773
 774   g_return_val_if_fail (GTK_IS_FILE_CHOOSER_ENTRY (chooser_entry), NULL);
 775
 776   text = gtk_entry_get_text (GTK_ENTRY (chooser_entry));
 777   last_slash = strrchr (text, G_DIR_SEPARATOR);
 778   if (last_slash)
 779     return last_slash + 1;
 780   else
 781     return text;
 782 }
 783
 784 /**
 785  * _gtk_file_chooser_entry_set_action:
 786  * @chooser_entry: a #GtkFileChooserEntry
 787  * @action: the action which is performed by the file selector using this entry
 788  *
 789  * Sets action which is performed by the file selector using this entry.
 790  * The #GtkFileChooserEntry will use different completion strategies for
 791  * different actions.
 792  **/
 793 void
 794 _gtk_file_chooser_entry_set_action (GtkFileChooserEntry *chooser_entry,
 795                                     GtkFileChooserAction action)
 796 {
 797   g_return_if_fail (GTK_IS_FILE_CHOOSER_ENTRY (chooser_entry));
 798
 799   if (chooser_entry->action != action)
 800     {
 801       GtkEntryCompletion *comp;
 802
 803       chooser_entry->action = action;
 804
 805       comp = gtk_entry_get_completion (GTK_ENTRY (chooser_entry));
 806
 807       /* FIXME: do we need to actually set the following? */
 808
 809       switch (action)
 810         {
 811         case GTK_FILE_CHOOSER_ACTION_OPEN:
 812         case GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER:
 813           gtk_entry_completion_set_popup_single_match (comp, FALSE);
 814           break;
 815         case GTK_FILE_CHOOSER_ACTION_SAVE:
 816         case GTK_FILE_CHOOSER_ACTION_CREATE_FOLDER:
 817           gtk_entry_completion_set_popup_single_match (comp, TRUE);
 818           break;
 819         }
 820
 821       if (chooser_entry->completion_store)
 822         _gtk_file_system_model_set_show_files (GTK_FILE_SYSTEM_MODEL (chooser_entry->completion_store),
 823                                                action == GTK_FILE_CHOOSER_ACTION_OPEN ||
 824                                                action == GTK_FILE_CHOOSER_ACTION_SAVE);
 825     }
 826 }
 827
 828
 829 /**
 830  * _gtk_file_chooser_entry_get_action:
 831  * @chooser_entry: a #GtkFileChooserEntry
 832  *
 833  * Gets the action for this entry.
 834  *
 835  * Returns: the action
 836  **/
 837 GtkFileChooserAction
 838 _gtk_file_chooser_entry_get_action (GtkFileChooserEntry *chooser_entry)
 839 {
 840   g_return_val_if_fail (GTK_IS_FILE_CHOOSER_ENTRY (chooser_entry),
 841                         GTK_FILE_CHOOSER_ACTION_OPEN);
 842
 843   return chooser_entry->action;
 844 }
 845
 846 gboolean
 847 _gtk_file_chooser_entry_get_is_folder (GtkFileChooserEntry *chooser_entry,
 848                                        GFile               *file)
 849 {
 850   GtkTreeIter iter;
 851   GFileInfo *info;
 852
 853   if (chooser_entry->completion_store == NULL ||
 854       !_gtk_file_system_model_get_iter_for_file (GTK_FILE_SYSTEM_MODEL (chooser_entry->completion_store),
 855                                                  &iter,
 856                                                  file))
 857     return FALSE;
 858
 859   info = _gtk_file_system_model_get_info (GTK_FILE_SYSTEM_MODEL (chooser_entry->completion_store),
 860                                           &iter);
 861
 862   return _gtk_file_info_consider_as_directory (info);
 863 }
 864
 865
 866 /*
 867  * _gtk_file_chooser_entry_select_filename:
 868  * @chooser_entry: a #GtkFileChooserEntry
 869  *
 870  * Selects the filename (without the extension) for user edition.
 871  */
 872 void
 873 _gtk_file_chooser_entry_select_filename (GtkFileChooserEntry *chooser_entry)
 874 {
 875   const gchar *str, *ext;
 876   glong len = -1;
 877
 878   if (chooser_entry->action == GTK_FILE_CHOOSER_ACTION_SAVE)
 879     {
 880       str = gtk_entry_get_text (GTK_ENTRY (chooser_entry));
 881       ext = g_strrstr (str, ".");
 882
 883       if (ext)
 884        len = g_utf8_pointer_to_offset (str, ext);
 885     }
 886
 887   gtk_editable_select_region (GTK_EDITABLE (chooser_entry), 0, (gint) len);
 888 }
 889
 890 void
 891 _gtk_file_chooser_entry_set_local_only (GtkFileChooserEntry *chooser_entry,
 892                                         gboolean             local_only)
 893 {
 894   chooser_entry->local_only = local_only;
 895   refresh_current_folder_and_file_part (chooser_entry);
 896 }
 897
 898 gboolean
 899 _gtk_file_chooser_entry_get_local_only (GtkFileChooserEntry *chooser_entry)
 900 {
 901   return chooser_entry->local_only;
 902 }