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