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 "gtkcelllayout.h"
  25 #include "gtkcellrenderertext.h"
  26 #include "gtkentry.h"
  27 #include "gtkfilechooserentry.h"
  28 #include "gtkmain.h"
  29 #include "gtkintl.h"
  30 #include "gtkalias.h"
  31
  32 typedef struct _GtkFileChooserEntryClass GtkFileChooserEntryClass;
  33
  34 #define GTK_FILE_CHOOSER_ENTRY_CLASS(klass)     (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_FILE_CHOOSER_ENTRY, GtkFileChooserEntryClass))
  35 #define GTK_IS_FILE_CHOOSER_ENTRY_CLASS(klass)  (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_FILE_CHOOSER_ENTRY))
  36 #define GTK_FILE_CHOOSER_ENTRY_GET_CLASS(obj)   (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_FILE_CHOOSER_ENTRY, GtkFileChooserEntryClass))
  37
  38 struct _GtkFileChooserEntryClass
  39 {
  40   GtkEntryClass parent_class;
  41 };
  42
  43 /* Action to take when the current folder finishes loading (for explicit or automatic completion) */
  44 typedef enum {
  45   LOAD_COMPLETE_NOTHING,
  46   LOAD_COMPLETE_AUTOCOMPLETE,
  47   LOAD_COMPLETE_EXPLICIT_COMPLETION
  48 } LoadCompleteAction;
  49
  50 struct _GtkFileChooserEntry
  51 {
  52   GtkEntry parent_instance;
  53
  54   GtkFileChooserAction action;
  55
  56   GtkFileSystem *file_system;
  57   GtkFilePath *base_folder;
  58   gchar *file_part;
  59   gint file_part_pos;
  60
  61   /* Folder being loaded or already loaded */
  62   GtkFilePath *current_folder_path;
  63   GtkFileFolder *current_folder;
  64   GtkFileSystemHandle *load_folder_handle;
  65
  66   LoadCompleteAction load_complete_action;
  67
  68   GtkListStore *completion_store;
  69
  70   guint start_autocompletion_idle_id;
  71
  72   guint has_completion : 1;
  73   guint in_change      : 1;
  74   guint eat_tabs       : 1;
  75 };
  76
  77 enum
  78 {
  79   DISPLAY_NAME_COLUMN,
  80   PATH_COLUMN,
  81   N_COLUMNS
  82 };
  83
  84 static void     gtk_file_chooser_entry_iface_init     (GtkEditableClass *iface);
  85
  86 static void     gtk_file_chooser_entry_finalize       (GObject          *object);
  87 static void     gtk_file_chooser_entry_dispose        (GObject          *object);
  88 static void     gtk_file_chooser_entry_grab_focus     (GtkWidget        *widget);
  89 static gboolean gtk_file_chooser_entry_focus          (GtkWidget        *widget,
  90                                                        GtkDirectionType  direction);
  91 static gboolean gtk_file_chooser_entry_focus_out_event (GtkWidget       *widget,
  92                                                         GdkEventFocus   *event);
  93 static void     gtk_file_chooser_entry_activate       (GtkEntry         *entry);
  94 static void     gtk_file_chooser_entry_do_insert_text (GtkEditable *editable,
  95                                                        const gchar *new_text,
  96                                                        gint         new_text_length,
  97                                                        gint        *position);
  98 static void     gtk_file_chooser_entry_do_delete_text (GtkEditable *editable,
  99                                                        gint         start_pos,
 100                                                        gint         end_pos);
 101 static void     gtk_file_chooser_entry_set_position (GtkEditable *editable,
 102                                                      gint         position);
 103 static void     gtk_file_chooser_entry_set_selection_bounds (GtkEditable *editable,
 104                                                              gint         start_pos,
 105                                                              gint         end_pos);
 106
 107 #ifdef G_OS_WIN32
 108 static gint     insert_text_callback      (GtkFileChooserEntry *widget,
 109                                            const gchar         *new_text,
 110                                            gint                 new_text_length,
 111                                            gint                *position,
 112                                            gpointer             user_data);
 113 static void     delete_text_callback      (GtkFileChooserEntry *widget,
 114                                            gint                 start_pos,
 115                                            gint                 end_pos,
 116                                            gpointer             user_data);
 117 #endif
 118
 119 static gboolean match_selected_callback   (GtkEntryCompletion  *completion,
 120                                            GtkTreeModel        *model,
 121                                            GtkTreeIter         *iter,
 122                                            GtkFileChooserEntry *chooser_entry);
 123 static gboolean completion_match_func     (GtkEntryCompletion  *comp,
 124                                            const char          *key,
 125                                            GtkTreeIter         *iter,
 126                                            gpointer             data);
 127 static char    *maybe_append_separator_to_path (GtkFileChooserEntry *chooser_entry,
 128                                                 GtkFilePath         *path,
 129                                                 gchar               *display_name);
 130
 131 typedef enum {
 132   REFRESH_UP_TO_CURSOR_POSITION,
 133   REFRESH_WHOLE_TEXT
 134 } RefreshMode;
 135
 136 static void refresh_current_folder_and_file_part (GtkFileChooserEntry *chooser_entry,
 137                                                   RefreshMode refresh_mode);
 138 static void finished_loading_cb (GtkFileFolder *folder,
 139                                  gpointer       data);
 140 static void autocomplete (GtkFileChooserEntry *chooser_entry);
 141 static void install_start_autocompletion_idle (GtkFileChooserEntry *chooser_entry);
 142
 143 static GtkEditableClass *parent_editable_iface;
 144
 145 G_DEFINE_TYPE_WITH_CODE (GtkFileChooserEntry, _gtk_file_chooser_entry, GTK_TYPE_ENTRY,
 146                          G_IMPLEMENT_INTERFACE (GTK_TYPE_EDITABLE,
 147                                                 gtk_file_chooser_entry_iface_init))
 148
 149 static void
 150 _gtk_file_chooser_entry_class_init (GtkFileChooserEntryClass *class)
 151 {
 152   GObjectClass *gobject_class = G_OBJECT_CLASS (class);
 153   GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
 154   GtkEntryClass *entry_class = GTK_ENTRY_CLASS (class);
 155
 156   gobject_class->finalize = gtk_file_chooser_entry_finalize;
 157   gobject_class->dispose = gtk_file_chooser_entry_dispose;
 158
 159   widget_class->grab_focus = gtk_file_chooser_entry_grab_focus;
 160   widget_class->focus = gtk_file_chooser_entry_focus;
 161   widget_class->focus_out_event = gtk_file_chooser_entry_focus_out_event;
 162
 163   entry_class->activate = gtk_file_chooser_entry_activate;
 164 }
 165
 166 static void
 167 gtk_file_chooser_entry_iface_init (GtkEditableClass *iface)
 168 {
 169   parent_editable_iface = g_type_interface_peek_parent (iface);
 170
 171   iface->do_insert_text = gtk_file_chooser_entry_do_insert_text;
 172   iface->do_delete_text = gtk_file_chooser_entry_do_delete_text;
 173   iface->set_position = gtk_file_chooser_entry_set_position;
 174   iface->set_selection_bounds = gtk_file_chooser_entry_set_selection_bounds;
 175 }
 176
 177 static void
 178 _gtk_file_chooser_entry_init (GtkFileChooserEntry *chooser_entry)
 179 {
 180   GtkEntryCompletion *comp;
 181   GtkCellRenderer *cell;
 182
 183   g_object_set (chooser_entry, "truncate-multiline", TRUE, NULL);
 184
 185   comp = gtk_entry_completion_new ();
 186   gtk_entry_completion_set_popup_single_match (comp, FALSE);
 187
 188   gtk_entry_completion_set_match_func (comp,
 189                                        completion_match_func,
 190                                        chooser_entry,
 191                                        NULL);
 192
 193   cell = gtk_cell_renderer_text_new ();
 194   gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (comp),
 195                               cell, TRUE);
 196   gtk_cell_layout_add_attribute (GTK_CELL_LAYOUT (comp),
 197                                  cell,
 198                                  "text", 0);
 199
 200   g_signal_connect (comp, "match_selected",
 201                     G_CALLBACK (match_selected_callback), chooser_entry);
 202
 203   gtk_entry_set_completion (GTK_ENTRY (chooser_entry), comp);
 204   g_object_unref (comp);
 205
 206 #ifdef G_OS_WIN32
 207   g_signal_connect (chooser_entry, "insert_text",
 208                     G_CALLBACK (insert_text_callback), NULL);
 209   g_signal_connect (chooser_entry, "delete_text",
 210                     G_CALLBACK (delete_text_callback), NULL);
 211 #endif
 212 }
 213
 214 static void
 215 gtk_file_chooser_entry_finalize (GObject *object)
 216 {
 217   GtkFileChooserEntry *chooser_entry = GTK_FILE_CHOOSER_ENTRY (object);
 218
 219   gtk_file_path_free (chooser_entry->base_folder);
 220   gtk_file_path_free (chooser_entry->current_folder_path);
 221   g_free (chooser_entry->file_part);
 222
 223   G_OBJECT_CLASS (_gtk_file_chooser_entry_parent_class)->finalize (object);
 224 }
 225
 226 static void
 227 gtk_file_chooser_entry_dispose (GObject *object)
 228 {
 229   GtkFileChooserEntry *chooser_entry = GTK_FILE_CHOOSER_ENTRY (object);
 230
 231   if (chooser_entry->start_autocompletion_idle_id != 0)
 232     {
 233       g_source_remove (chooser_entry->start_autocompletion_idle_id);
 234       chooser_entry->start_autocompletion_idle_id = 0;
 235     }
 236
 237   if (chooser_entry->completion_store)
 238     {
 239       g_object_unref (chooser_entry->completion_store);
 240       chooser_entry->completion_store = NULL;
 241     }
 242
 243   if (chooser_entry->load_folder_handle)
 244     {
 245       gtk_file_system_cancel_operation (chooser_entry->load_folder_handle);
 246       chooser_entry->load_folder_handle = NULL;
 247     }
 248
 249   if (chooser_entry->current_folder)
 250     {
 251       g_signal_handlers_disconnect_by_func (chooser_entry->current_folder,
 252                                             G_CALLBACK (finished_loading_cb), chooser_entry);
 253       g_object_unref (chooser_entry->current_folder);
 254       chooser_entry->current_folder = NULL;
 255     }
 256
 257   if (chooser_entry->file_system)
 258     {
 259       g_object_unref (chooser_entry->file_system);
 260       chooser_entry->file_system = NULL;
 261     }
 262
 263   G_OBJECT_CLASS (_gtk_file_chooser_entry_parent_class)->dispose (object);
 264 }
 265
 266 /* Match functions for the GtkEntryCompletion */
 267 static gboolean
 268 match_selected_callback (GtkEntryCompletion  *completion,
 269                          GtkTreeModel        *model,
 270                          GtkTreeIter         *iter,
 271                          GtkFileChooserEntry *chooser_entry)
 272 {
 273   char *display_name;
 274   GtkFilePath *path;
 275   gint pos;
 276
 277   gtk_tree_model_get (model, iter,
 278                       DISPLAY_NAME_COLUMN, &display_name,
 279                       PATH_COLUMN, &path,
 280                       -1);
 281
 282   if (!display_name || !path)
 283     {
 284       /* these shouldn't complain if passed NULL */
 285       gtk_file_path_free (path);
 286       g_free (display_name);
 287       return FALSE;
 288     }
 289
 290   display_name = maybe_append_separator_to_path (chooser_entry, path, display_name);
 291
 292   pos = chooser_entry->file_part_pos;
 293
 294   /* We don't set in_change here as we want to update the current_folder
 295    * variable */
 296   gtk_editable_delete_text (GTK_EDITABLE (chooser_entry),
 297                             pos, -1);
 298   gtk_editable_insert_text (GTK_EDITABLE (chooser_entry),
 299                             display_name, -1,
 300                             &pos);
 301   gtk_editable_set_position (GTK_EDITABLE (chooser_entry), -1);
 302
 303   gtk_file_path_free (path);
 304   g_free (display_name);
 305
 306   return TRUE;
 307 }
 308
 309 /* Match function for the GtkEntryCompletion */
 310 static gboolean
 311 completion_match_func (GtkEntryCompletion *comp,
 312                        const char         *key_unused,
 313                        GtkTreeIter        *iter,
 314                        gpointer            data)
 315 {
 316   GtkFileChooserEntry *chooser_entry;
 317   char *name;
 318   gboolean result;
 319   char *norm_file_part;
 320   char *norm_name;
 321
 322   chooser_entry = GTK_FILE_CHOOSER_ENTRY (data);
 323
 324   /* We ignore the key because it is the contents of the entry.  Instead, we
 325    * just use our precomputed file_part.
 326    */
 327   if (!chooser_entry->file_part)
 328     {
 329       return FALSE;
 330     }
 331
 332   gtk_tree_model_get (GTK_TREE_MODEL (chooser_entry->completion_store), iter, DISPLAY_NAME_COLUMN, &name, -1);
 333   if (!name)
 334     {
 335       return FALSE; /* Uninitialized row, ugh */
 336     }
 337
 338   /* If we have an empty file_part, then we're at the root of a directory.  In
 339    * that case, we want to match all non-dot files.  We might want to match
 340    * dot_files too if show_hidden is TRUE on the fileselector in the future.
 341    */
 342   /* Additionally, support for gnome .hidden files would be sweet, too */
 343   if (chooser_entry->file_part[0] == '\000')
 344     {
 345       if (name[0] == '.')
 346         result = FALSE;
 347       else
 348         result = TRUE;
 349       g_free (name);
 350
 351       return result;
 352     }
 353
 354
 355   norm_file_part = g_utf8_normalize (chooser_entry->file_part, -1, G_NORMALIZE_ALL);
 356   norm_name = g_utf8_normalize (name, -1, G_NORMALIZE_ALL);
 357
 358 #ifdef G_PLATFORM_WIN32
 359   {
 360     gchar *temp;
 361
 362     temp = norm_file_part;
 363     norm_file_part = g_utf8_casefold (norm_file_part, -1);
 364     g_free (temp);
 365
 366     temp = norm_name;
 367     norm_name = g_utf8_casefold (norm_name, -1);
 368     g_free (temp);
 369   }
 370 #endif
 371
 372   result = (strncmp (norm_file_part, norm_name, strlen (norm_file_part)) == 0);
 373
 374   g_free (norm_file_part);
 375   g_free (norm_name);
 376   g_free (name);
 377
 378   return result;
 379 }
 380
 381 static void
 382 clear_completions (GtkFileChooserEntry *chooser_entry)
 383 {
 384   chooser_entry->has_completion = FALSE;
 385   chooser_entry->load_complete_action = LOAD_COMPLETE_NOTHING;
 386 }
 387
 388 static void
 389 beep (GtkFileChooserEntry *chooser_entry)
 390 {
 391   gdk_display_beep (gtk_widget_get_display (GTK_WIDGET (chooser_entry)));
 392 }
 393
 394 /* This function will append a directory separator to paths to
 395  * display_name iff the path associated with it is a directory.
 396  * maybe_append_separator_to_path will g_free the display_name and
 397  * return a new one if needed.  Otherwise, it will return the old one.
 398  * You should be safe calling
 399  *
 400  * display_name = maybe_append_separator_to_path (entry, path, display_name);
 401  * ...
 402  * g_free (display_name);
 403  */
 404 static char *
 405 maybe_append_separator_to_path (GtkFileChooserEntry *chooser_entry,
 406                                 GtkFilePath         *path,
 407                                 gchar               *display_name)
 408 {
 409   if (!g_str_has_suffix (display_name, G_DIR_SEPARATOR_S) && path)
 410     {
 411       GtkFileInfo *info;
 412
 413       info = gtk_file_folder_get_info (chooser_entry->current_folder,
 414                                        path, NULL); /* NULL-GError */
 415
 416       if (info)
 417         {
 418           if (gtk_file_info_get_is_folder (info))
 419             {
 420               gchar *tmp = display_name;
 421               display_name = g_strconcat (tmp, G_DIR_SEPARATOR_S, NULL);
 422               g_free (tmp);
 423             }
 424
 425           gtk_file_info_free (info);
 426         }
 427     }
 428
 429   return display_name;
 430 }
 431
 432 /* Determines if the completion model has entries with a common prefix relative
 433  * to the current contents of the entry.  Also, if there's one and only one such
 434  * path, stores it in unique_path_ret.
 435  */
 436 static gboolean
 437 find_common_prefix (GtkFileChooserEntry *chooser_entry,
 438                     gchar               **common_prefix_ret,
 439                     GtkFilePath         **unique_path_ret,
 440                     GError              **error)
 441 {
 442   GtkEditable *editable;
 443   GtkTreeIter iter;
 444   gboolean parsed;
 445   gboolean valid;
 446   char *text_up_to_cursor;
 447   GtkFilePath *parsed_folder_path;
 448   char *parsed_file_part;
 449
 450   *common_prefix_ret = NULL;
 451   *unique_path_ret = NULL;
 452
 453   if (chooser_entry->completion_store == NULL)
 454     return;
 455
 456   editable = GTK_EDITABLE (chooser_entry);
 457
 458   text_up_to_cursor = gtk_editable_get_chars (editable, 0, gtk_editable_get_position (editable));
 459
 460   parsed = gtk_file_system_parse (chooser_entry->file_system,
 461                                   chooser_entry->base_folder,
 462                                   text_up_to_cursor,
 463                                   &parsed_folder_path,
 464                                   &parsed_file_part,
 465                                   error);
 466
 467   printf ("Text up to cursor: \"%s\"\n", text_up_to_cursor);
 468   printf ("parsed_folder_path: \"%s\"\nparsed_file_part: \"%s\"\n",
 469           parsed_folder_path ? (char *) parsed_folder_path : "<NONE>",
 470           parsed_file_part ? parsed_file_part : "<NONE>");
 471
 472   g_free (text_up_to_cursor);
 473
 474   if (!parsed)
 475     return FALSE;
 476
 477   g_assert (parsed_folder_path != NULL
 478             && chooser_entry->current_folder_path != NULL
 479             && gtk_file_path_compare (parsed_folder_path, chooser_entry->current_folder_path) == 0);
 480
 481   valid = gtk_tree_model_get_iter_first (GTK_TREE_MODEL (chooser_entry->completion_store), &iter);
 482
 483   while (valid)
 484     {
 485       gchar *display_name;
 486       GtkFilePath *path;
 487
 488       gtk_tree_model_get (GTK_TREE_MODEL (chooser_entry->completion_store),
 489                           &iter,
 490                           DISPLAY_NAME_COLUMN, &display_name,
 491                           PATH_COLUMN, &path,
 492                           -1);
 493
 494       if (g_str_has_prefix (display_name, parsed_file_part))
 495         {
 496           if (!*common_prefix_ret)
 497             {
 498               *common_prefix_ret = g_strdup (display_name);
 499               *unique_path_ret = gtk_file_path_copy (path);
 500             }
 501           else
 502             {
 503               gchar *p = *common_prefix_ret;
 504               const gchar *q = display_name;
 505
 506               while (*p && *p == *q)
 507                 {
 508                   p++;
 509                   q++;
 510                 }
 511
 512               *p = '\0';
 513
 514               gtk_file_path_free (*unique_path_ret);
 515               *unique_path_ret = NULL;
 516             }
 517         }
 518
 519       g_free (display_name);
 520       gtk_file_path_free (path);
 521       valid = gtk_tree_model_iter_next (GTK_TREE_MODEL (chooser_entry->completion_store), &iter);
 522     }
 523
 524   gtk_file_path_free (parsed_folder_path);
 525   g_free (parsed_file_part);
 526
 527   return TRUE;
 528 }
 529
 530 typedef enum {
 531   INVALID_INPUT,
 532   NO_MATCH,
 533   COMPLETED,
 534   COMPLETED_UNIQUE,
 535   COMPLETE_BUT_NOT_UNIQUE
 536 } CommonPrefixResult;
 537
 538 /* Finds a common prefix based on the contents of the entry and mandatorily appends it */
 539 static CommonPrefixResult
 540 append_common_prefix (GtkFileChooserEntry *chooser_entry,
 541                       gboolean             highlight,
 542                       gboolean             show_errors)
 543 {
 544   gchar *common_prefix;
 545   GtkFilePath *unique_path;
 546   GError *error;
 547   CommonPrefixResult result;
 548   gboolean have_result;
 549
 550   clear_completions (chooser_entry);
 551
 552   error = NULL;
 553   if (!find_common_prefix (chooser_entry, &common_prefix, &unique_path, &error))
 554     {
 555       if (show_errors)
 556         {
 557           beep (chooser_entry);
 558           /* FIXME: display the error somehow */
 559         }
 560
 561       g_error_free (error);
 562
 563       return INVALID_INPUT;
 564     }
 565
 566   have_result = FALSE;
 567
 568   if (unique_path)
 569     {
 570       common_prefix = maybe_append_separator_to_path (chooser_entry,
 571                                                       unique_path,
 572                                                       common_prefix);
 573       gtk_file_path_free (unique_path);
 574
 575       if (common_prefix)
 576         result = UNIQUE_PREFIX_APPENDED;
 577       else
 578         result = INVALID_INPUT;
 579
 580       have_result = TRUE;
 581     }
 582   else
 583     {
 584       /* FIXME:  if there was no unique_path, but there was a common_prefix,
 585        * then we *may* have "complete but not unique".  find_common_prefix()
 586        * needs to say if the match was a complete entry, or a partial one.
 587        */
 588     }
 589
 590   printf ("common prefix: \"%s\"\n",
 591           common_prefix ? common_prefix : "<NONE>");
 592
 593   if (common_prefix)
 594     {
 595       gint cursor_pos;
 596       gint common_prefix_len;
 597       gint pos;
 598
 599       cursor_pos = gtk_editable_get_position (GTK_EDITABLE (chooser_entry));
 600       common_prefix_len = g_utf8_strlen (common_prefix, -1);
 601
 602       pos = chooser_entry->file_part_pos;
 603
 604       chooser_entry->in_change = TRUE;
 605       printf ("Deleting range (%d, %d)\n", pos, cursor_pos);
 606       gtk_editable_delete_text (GTK_EDITABLE (chooser_entry),
 607                                 pos, cursor_pos);
 608       printf ("Inserting common prefix at %d\n", pos);
 609       gtk_editable_insert_text (GTK_EDITABLE (chooser_entry),
 610                                 common_prefix, -1,
 611                                 &pos);
 612       chooser_entry->in_change = FALSE;
 613
 614       if (highlight)
 615         {
 616           printf ("Selecting range (%d, %d)\n", cursor_pos, pos);
 617           gtk_editable_select_region (GTK_EDITABLE (chooser_entry),
 618                                       cursor_pos,
 619                                       pos); /* cursor_pos + common_prefix_len); */
 620           chooser_entry->has_completion = TRUE;
 621         }
 622       else
 623         gtk_editable_set_position (GTK_EDITABLE (chooser_entry), pos);
 624
 625       g_free (common_prefix);
 626
 627       if (have_result)
 628         return result;
 629       else
 630         return PREFIX_APPENDED;
 631     }
 632   else
 633     {
 634       if (have_result)
 635         return result;
 636       else
 637         return NO_COMMON_PREFIX;
 638     }
 639 }
 640
 641 static void
 642 gtk_file_chooser_entry_do_insert_text (GtkEditable *editable,
 643                                        const gchar *new_text,
 644                                        gint         new_text_length,
 645                                        gint        *position)
 646 {
 647   GtkFileChooserEntry *chooser_entry = GTK_FILE_CHOOSER_ENTRY (editable);
 648   gint old_text_len;
 649   gint insert_pos;
 650
 651   old_text_len = GTK_ENTRY (chooser_entry)->text_length;
 652   insert_pos = *position;
 653
 654   parent_editable_iface->do_insert_text (editable, new_text, new_text_length, position);
 655
 656   if (chooser_entry->in_change)
 657     return;
 658
 659   if ((chooser_entry->action == GTK_FILE_CHOOSER_ACTION_OPEN
 660        || chooser_entry->action == GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER)
 661       && insert_pos == old_text_len)
 662     install_start_autocompletion_idle (chooser_entry);
 663 }
 664
 665 static void
 666 clear_completions_if_not_in_change (GtkFileChooserEntry *chooser_entry)
 667 {
 668   if (chooser_entry->in_change)
 669     return;
 670
 671   clear_completions (chooser_entry);
 672 }
 673
 674 static void
 675 gtk_file_chooser_entry_do_delete_text (GtkEditable *editable,
 676                                        gint         start_pos,
 677                                        gint         end_pos)
 678 {
 679   GtkFileChooserEntry *chooser_entry = GTK_FILE_CHOOSER_ENTRY (editable);
 680
 681   parent_editable_iface->do_delete_text (editable, start_pos, end_pos);
 682
 683   clear_completions_if_not_in_change (chooser_entry);
 684 }
 685
 686 static void
 687 gtk_file_chooser_entry_set_position (GtkEditable *editable,
 688                                      gint         position)
 689 {
 690   GtkFileChooserEntry *chooser_entry = GTK_FILE_CHOOSER_ENTRY (editable);
 691
 692   parent_editable_iface->set_position (editable, position);
 693
 694   clear_completions_if_not_in_change (chooser_entry);
 695 }
 696
 697 static void
 698 gtk_file_chooser_entry_set_selection_bounds (GtkEditable *editable,
 699                                              gint         start_pos,
 700                                              gint         end_pos)
 701 {
 702   GtkFileChooserEntry *chooser_entry = GTK_FILE_CHOOSER_ENTRY (editable);
 703
 704   parent_editable_iface->set_selection_bounds (editable, start_pos, end_pos);
 705
 706   clear_completions_if_not_in_change (chooser_entry);
 707 }
 708
 709 static void
 710 gtk_file_chooser_entry_grab_focus (GtkWidget *widget)
 711 {
 712   GTK_WIDGET_CLASS (_gtk_file_chooser_entry_parent_class)->grab_focus (widget);
 713   _gtk_file_chooser_entry_select_filename (GTK_FILE_CHOOSER_ENTRY (widget));
 714 }
 715
 716 static void
 717 explicitly_complete (GtkFileChooserEntry *chooser_entry)
 718 {
 719   CommonPrefixResult result;
 720
 721   g_assert (chooser_entry->current_folder != NULL);
 722   g_assert (gtk_file_folder_is_finished_loading (chooser_entry->current_folder));
 723
 724   /* FIXME: see what Emacs does in case there is no common prefix, or there is more than one match:
 725    *
 726    * - If there is a common prefix, insert it
 727    * - If there is no common prefix, pop up the suggestion window
 728    * - If there are no matches at all, beep and bring up a tooltip
 729    * - If the suggestion window is already up, scroll it
 730    */
 731   result = append_common_prefix (chooser_entry, FALSE, TRUE);
 732
 733   switch (result)
 734     {
 735     case PREFIX_APPENDED:
 736       break;
 737
 738     case UNIQUE_PREFIX_APPENDED:
 739       break;
 740
 741     case INVALID_INPUT:
 742       break;
 743
 744     case NO_COMMON_PREFIX:
 745       /* FIXME: pop up the suggestion window */
 746       /* FIXME: we need to distinguish between "no match" and "many matches" */
 747       break;
 748
 749     default:
 750       g_assert_not_reached ();
 751     }
 752
 753   /* FIXME: this bit of code is commented out for reference; this is how we used to force the suggestion window to pop up
 754    *
 755    * Trigger the completion window to pop up again by a
 756    * zero-length insertion, a bit of a hack.
 757    *
 758    * gtk_editable_insert_text (editable, "", -1, &pos);
 759    */
 760 }
 761
 762 static void
 763 start_explicit_completion (GtkFileChooserEntry *chooser_entry)
 764 {
 765   printf ("Starting explicit completion - refreshing current folder\n");
 766
 767   refresh_current_folder_and_file_part (chooser_entry, REFRESH_UP_TO_CURSOR_POSITION);
 768
 769   if (!chooser_entry->current_folder_path)
 770     {
 771       /* Here, no folder path means we couldn't parse what the user typed. */
 772
 773       printf ("We don't have a current_folder_path - means the user typed something bogus\n");
 774
 775       beep (chooser_entry);
 776       /* FIXME: present a tooltip to tell the user that his folder is invalid */
 777
 778       chooser_entry->load_complete_action = LOAD_COMPLETE_NOTHING;
 779       return;
 780     }
 781
 782   if (chooser_entry->current_folder
 783       && gtk_file_folder_is_finished_loading (chooser_entry->current_folder))
 784     {
 785       printf ("File folder is finished loading, doing explicit completion immediately\n");
 786       explicitly_complete (chooser_entry);
 787     }
 788   else
 789     {
 790       printf ("File folder is not yet loaded; will do explicit completion later\n");
 791       chooser_entry->load_complete_action = LOAD_COMPLETE_EXPLICIT_COMPLETION;
 792
 793       /* FIXME: here, Emacs would say, "Making completion list..." */
 794     }
 795 }
 796
 797 static gboolean
 798 gtk_file_chooser_entry_focus (GtkWidget        *widget,
 799                               GtkDirectionType  direction)
 800 {
 801   GtkFileChooserEntry *chooser_entry;
 802   GtkEditable *editable;
 803   GtkEntry *entry;
 804   GdkModifierType state;
 805   gboolean control_pressed;
 806
 807   chooser_entry = GTK_FILE_CHOOSER_ENTRY (widget);
 808   editable = GTK_EDITABLE (widget);
 809   entry = GTK_ENTRY (widget);
 810
 811   if (!chooser_entry->eat_tabs)
 812     return GTK_WIDGET_CLASS (_gtk_file_chooser_entry_parent_class)->focus (widget, direction);
 813
 814   control_pressed = FALSE;
 815
 816   if (gtk_get_current_event_state (&state))
 817     {
 818       if ((state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
 819         control_pressed = TRUE;
 820     }
 821
 822   /* This is a bit evil -- it makes Tab never leave the entry. It basically
 823    * makes it 'safe' for people to hit. */
 824   if ((direction == GTK_DIR_TAB_FORWARD) &&
 825       (GTK_WIDGET_HAS_FOCUS (widget)) &&
 826       (! control_pressed))
 827     {
 828       if (chooser_entry->has_completion)
 829         {
 830           gboolean has_selection;
 831           gint sel_end;
 832
 833           printf ("Hit Tab, and we have a completion!  Will unselect it\n");
 834
 835           has_selection = gtk_editable_get_selection_bounds (editable, NULL, &sel_end);
 836           g_assert (has_selection && sel_end == GTK_ENTRY (entry)->text_length);
 837
 838           gtk_editable_set_position (editable, sel_end);
 839         }
 840       else
 841         {
 842           printf ("Hit Tab, we don't have a selected completion.  Will start explicit completion\n");
 843
 844           start_explicit_completion (chooser_entry);
 845         }
 846
 847       return TRUE;
 848     }
 849   else
 850     return GTK_WIDGET_CLASS (_gtk_file_chooser_entry_parent_class)->focus (widget, direction);
 851 }
 852
 853 static gboolean
 854 gtk_file_chooser_entry_focus_out_event (GtkWidget     *widget,
 855                                         GdkEventFocus *event)
 856 {
 857   GtkFileChooserEntry *chooser_entry = GTK_FILE_CHOOSER_ENTRY (widget);
 858
 859   chooser_entry->load_complete_action = LOAD_COMPLETE_NOTHING;
 860
 861   return GTK_WIDGET_CLASS (_gtk_file_chooser_entry_parent_class)->focus_out_event (widget, event);
 862 }
 863
 864 static void
 865 gtk_file_chooser_entry_activate (GtkEntry *entry)
 866 {
 867   GtkFileChooserEntry *chooser_entry = GTK_FILE_CHOOSER_ENTRY (entry);
 868
 869   if (chooser_entry->has_completion)
 870     {
 871       gtk_editable_set_position (GTK_EDITABLE (entry),
 872                                  entry->text_length);
 873     }
 874
 875   refresh_current_folder_and_file_part (chooser_entry, REFRESH_WHOLE_TEXT);
 876
 877   GTK_ENTRY_CLASS (_gtk_file_chooser_entry_parent_class)->activate (entry);
 878 }
 879
 880 static void
 881 discard_completion_store (GtkFileChooserEntry *chooser_entry)
 882 {
 883   if (!chooser_entry->completion_store)
 884     return;
 885
 886   gtk_entry_completion_set_model (gtk_entry_get_completion (GTK_ENTRY (chooser_entry)), NULL);
 887   g_object_unref (chooser_entry->completion_store);
 888   chooser_entry->completion_store = NULL;
 889 }
 890
 891 /* Fills the completion store from the contents of the current folder */
 892 static void
 893 populate_completion_store (GtkFileChooserEntry *chooser_entry)
 894 {
 895   GSList *paths;
 896   GSList *tmp_list;
 897
 898   printf ("Populating completion store\n");
 899
 900   if (!gtk_file_folder_list_children (chooser_entry->current_folder, &paths, NULL)) /* NULL-GError */
 901     return;
 902
 903   discard_completion_store (chooser_entry);
 904
 905   chooser_entry->completion_store = gtk_list_store_new (N_COLUMNS,
 906                                                         G_TYPE_STRING,
 907                                                         GTK_TYPE_FILE_PATH);
 908
 909   for (tmp_list = paths; tmp_list; tmp_list = tmp_list->next)
 910     {
 911       GtkFileInfo *info;
 912       GtkFilePath *path;
 913
 914       path = tmp_list->data;
 915
 916       info = gtk_file_folder_get_info (chooser_entry->current_folder,
 917                                        path,
 918                                        NULL); /* NULL-GError */
 919       if (info)
 920         {
 921           gchar *display_name = g_strdup (gtk_file_info_get_display_name (info));
 922           GtkTreeIter iter;
 923
 924           display_name = maybe_append_separator_to_path (chooser_entry, path, display_name);
 925
 926           gtk_list_store_append (chooser_entry->completion_store, &iter);
 927           gtk_list_store_set (chooser_entry->completion_store, &iter,
 928                               DISPLAY_NAME_COLUMN, display_name,
 929                               PATH_COLUMN, path,
 930                               -1);
 931
 932           gtk_file_info_free (info);
 933           g_free (display_name);
 934         }
 935     }
 936
 937   gtk_file_paths_free (paths);
 938
 939   gtk_tree_sortable_set_sort_column_id (GTK_TREE_SORTABLE (chooser_entry->completion_store),
 940                                         DISPLAY_NAME_COLUMN, GTK_SORT_ASCENDING);
 941
 942   gtk_entry_completion_set_model (gtk_entry_get_completion (GTK_ENTRY (chooser_entry)),
 943                                   GTK_TREE_MODEL (chooser_entry->completion_store));
 944 }
 945
 946 /* When we finish loading the current folder, this function should get called to
 947  * perform the deferred autocompletion or explicit completion.
 948  */
 949 static void
 950 perform_load_complete_action (GtkFileChooserEntry *chooser_entry)
 951 {
 952   switch (chooser_entry->load_complete_action)
 953     {
 954     case LOAD_COMPLETE_NOTHING:
 955       break;
 956
 957     case LOAD_COMPLETE_AUTOCOMPLETE:
 958       printf ("Load is complete; will autocomplete immediately\n");
 959       autocomplete (chooser_entry);
 960       break;
 961
 962     case LOAD_COMPLETE_EXPLICIT_COMPLETION:
 963       printf ("Load is  complete; will do explicit completion\n");
 964       explicitly_complete (chooser_entry);
 965       break;
 966
 967     default:
 968       g_assert_not_reached ();
 969     }
 970
 971   chooser_entry->load_complete_action = LOAD_COMPLETE_NOTHING;
 972 }
 973
 974 static void
 975 finish_folder_load (GtkFileChooserEntry *chooser_entry)
 976 {
 977   populate_completion_store (chooser_entry);
 978   perform_load_complete_action (chooser_entry);
 979
 980   gtk_widget_set_tooltip_text (GTK_WIDGET (chooser_entry), NULL);
 981 }
 982
 983 /* Callback when the current folder finishes loading */
 984 static void
 985 finished_loading_cb (GtkFileFolder *folder,
 986                      gpointer       data)
 987 {
 988   GtkFileChooserEntry *chooser_entry = GTK_FILE_CHOOSER_ENTRY (data);
 989
 990   printf ("Folder finished loading asynchronously!  Will populate the completion store\n");
 991
 992   finish_folder_load (chooser_entry);
 993 }
 994
 995 /* Callback when the current folder's handle gets obtained (not necessarily loaded completely) */
 996 static void
 997 load_directory_get_folder_callback (GtkFileSystemHandle *handle,
 998                                     GtkFileFolder       *folder,
 999                                     const GError        *error,
1000                                     gpointer             data)
1001 {
1002   gboolean cancelled = handle->cancelled;
1003   GtkFileChooserEntry *chooser_entry = data;
1004
1005   if (handle != chooser_entry->load_folder_handle)
1006     goto out;
1007
1008   chooser_entry->load_folder_handle = NULL;
1009
1010   /* FIXME: if there was an error *AND* we had a pending explicit completion, beep and pop up a
1011    * tooltip to say that the folder could not be loaded.
1012    */
1013
1014   /* FIXME: if error, remove the current tooltip ("making completion list") */
1015
1016   if (cancelled || error)
1017     goto out;
1018
1019   g_assert (folder != NULL);
1020   chooser_entry->current_folder = folder;
1021
1022   printf ("Got folder asynchronously!\n");
1023
1024   discard_completion_store (chooser_entry);
1025
1026   if (gtk_file_folder_is_finished_loading (chooser_entry->current_folder))
1027     {
1028       printf ("And the folder is already finished loading.  Will populate the completion store.\n");
1029       finish_folder_load (chooser_entry);
1030     }
1031   else
1032     {
1033       printf ("Folder is not yet completely loaded.  Will load it asynchronously...\n");
1034       g_signal_connect (chooser_entry->current_folder, "finished-loading",
1035                         G_CALLBACK (finished_loading_cb), chooser_entry);
1036     }
1037
1038 out:
1039   g_object_unref (chooser_entry);
1040   g_object_unref (handle);
1041 }
1042
1043 static void
1044 start_loading_current_folder (GtkFileChooserEntry *chooser_entry)
1045 {
1046   if (chooser_entry->current_folder_path == NULL ||
1047       chooser_entry->file_system == NULL)
1048     return;
1049
1050   g_assert (chooser_entry->current_folder == NULL);
1051   g_assert (chooser_entry->load_folder_handle == NULL);
1052
1053   printf ("Starting async load of folder %s\n", (char *) chooser_entry->current_folder_path);
1054
1055   chooser_entry->load_folder_handle =
1056     gtk_file_system_get_folder (chooser_entry->file_system,
1057                                 chooser_entry->current_folder_path,
1058                                 GTK_FILE_INFO_DISPLAY_NAME | GTK_FILE_INFO_IS_FOLDER,
1059                                 load_directory_get_folder_callback,
1060                                 g_object_ref (chooser_entry));
1061 }
1062
1063 static void
1064 reload_current_folder (GtkFileChooserEntry *chooser_entry,
1065                        GtkFilePath         *folder_path,
1066                        gboolean             force_reload)
1067 {
1068   gboolean reload = FALSE;
1069
1070   if (chooser_entry->current_folder_path)
1071     {
1072       if ((folder_path && gtk_file_path_compare (folder_path, chooser_entry->current_folder_path) != 0)
1073           || force_reload)
1074         {
1075           reload = TRUE;
1076
1077           /* We changed our current directory.  We need to clear out the old
1078            * directory information.
1079            */
1080           if (chooser_entry->current_folder)
1081             {
1082               if (chooser_entry->load_folder_handle)
1083                 {
1084                   printf ("Cancelling folder load\n");
1085                   gtk_file_system_cancel_operation (chooser_entry->load_folder_handle);
1086                   chooser_entry->load_folder_handle = NULL;
1087                 }
1088
1089               g_object_unref (chooser_entry->current_folder);
1090               chooser_entry->current_folder = NULL;
1091             }
1092
1093           gtk_file_path_free (chooser_entry->current_folder_path);
1094           chooser_entry->current_folder_path = gtk_file_path_copy (folder_path);
1095         }
1096     }
1097   else
1098     {
1099       chooser_entry->current_folder_path = gtk_file_path_copy (folder_path);
1100       reload = TRUE;
1101     }
1102
1103   if (reload)
1104     start_loading_current_folder (chooser_entry);
1105 }
1106
1107 static void
1108 refresh_current_folder_and_file_part (GtkFileChooserEntry *chooser_entry,
1109                                       RefreshMode          refresh_mode)
1110 {
1111   GtkEditable *editable;
1112   gint end_pos;
1113   gchar *text;
1114   GtkFilePath *folder_path;
1115   gchar *file_part;
1116   gsize total_len, file_part_len;
1117   gint file_part_pos;
1118
1119   editable = GTK_EDITABLE (chooser_entry);
1120
1121   switch (refresh_mode)
1122     {
1123     case REFRESH_UP_TO_CURSOR_POSITION:
1124       end_pos = gtk_editable_get_position (editable);
1125       break;
1126
1127     case REFRESH_WHOLE_TEXT:
1128       end_pos = GTK_ENTRY (chooser_entry)->text_length;
1129       break;
1130
1131     default:
1132       g_assert_not_reached ();
1133       return;
1134     }
1135
1136   text = gtk_editable_get_chars (editable, 0, end_pos);
1137
1138   if (!chooser_entry->file_system ||
1139       !chooser_entry->base_folder ||
1140       !gtk_file_system_parse (chooser_entry->file_system,
1141                               chooser_entry->base_folder, text,
1142                               &folder_path, &file_part, NULL)) /* NULL-GError */
1143     {
1144       folder_path = gtk_file_path_copy (chooser_entry->base_folder);
1145       file_part = g_strdup ("");
1146       file_part_pos = -1;
1147     }
1148   else
1149     {
1150       file_part_len = strlen (file_part);
1151       total_len = strlen (text);
1152       if (total_len > file_part_len)
1153         file_part_pos = g_utf8_strlen (text, total_len - file_part_len);
1154       else
1155         file_part_pos = 0;
1156     }
1157
1158   printf ("Parsed text \"%s\", file_part=\"%s\", file_part_pos=%d, folder_path=\"%s\"\n",
1159           text,
1160           file_part,
1161           file_part_pos,
1162           folder_path ? (char *) folder_path : "(NULL)");
1163
1164   g_free (text);
1165
1166   g_free (chooser_entry->file_part);
1167
1168   chooser_entry->file_part = file_part;
1169   chooser_entry->file_part_pos = file_part_pos;
1170
1171   reload_current_folder (chooser_entry, folder_path, file_part_pos == -1);
1172   gtk_file_path_free (folder_path);
1173 }
1174
1175 static void
1176 autocomplete (GtkFileChooserEntry *chooser_entry)
1177 {
1178   g_assert (chooser_entry->current_folder != NULL);
1179   g_assert (gtk_file_folder_is_finished_loading (chooser_entry->current_folder));
1180   g_assert (gtk_editable_get_position (GTK_EDITABLE (chooser_entry)) == GTK_ENTRY (chooser_entry)->text_length);
1181
1182   printf ("Doing autocompletion since our folder is finished loading\n");
1183
1184   append_common_prefix (chooser_entry, TRUE, FALSE);
1185 }
1186
1187 static void
1188 start_autocompletion (GtkFileChooserEntry *chooser_entry)
1189 {
1190   printf ("Starting autocompletion\n");
1191
1192   refresh_current_folder_and_file_part (chooser_entry, REFRESH_UP_TO_CURSOR_POSITION);
1193
1194   if (!chooser_entry->current_folder)
1195     {
1196       /* We don't beep or anything, since this is autocompletion - the user
1197        * didn't request any action explicitly.
1198        */
1199       printf ("No current_folder; not doing autocompletion after all\n");
1200       return;
1201     }
1202
1203   if (gtk_file_folder_is_finished_loading (chooser_entry->current_folder))
1204     {
1205       printf ("File folder is finished loading; doing autocompletion immediately\n");
1206       autocomplete (chooser_entry);
1207     }
1208   else
1209     {
1210       printf ("File folder is not yet loaded; will do autocompletion later\n");
1211       chooser_entry->load_complete_action = LOAD_COMPLETE_AUTOCOMPLETE;
1212     }
1213 }
1214
1215 static gboolean
1216 start_autocompletion_idle_handler (gpointer data)
1217 {
1218   GtkFileChooserEntry *chooser_entry = GTK_FILE_CHOOSER_ENTRY (data);
1219
1220   start_autocompletion (chooser_entry);
1221
1222   chooser_entry->start_autocompletion_idle_id = 0;
1223
1224   return FALSE;
1225 }
1226
1227 static void
1228 install_start_autocompletion_idle (GtkFileChooserEntry *chooser_entry)
1229 {
1230   if (chooser_entry->start_autocompletion_idle_id != 0)
1231     return;
1232
1233   chooser_entry->start_autocompletion_idle_id = g_idle_add (start_autocompletion_idle_handler, chooser_entry);
1234 }
1235
1236 #ifdef G_OS_WIN32
1237 static gint
1238 insert_text_callback (GtkFileChooserEntry *chooser_entry,
1239                       const gchar         *new_text,
1240                       gint                 new_text_length,
1241                       gint                *position,
1242                       gpointer             user_data)
1243 {
1244   const gchar *colon = memchr (new_text, ':', new_text_length);
1245   gint i;
1246
1247   /* Disallow these characters altogether */
1248   for (i = 0; i < new_text_length; i++)
1249     {
1250       if (new_text[i] == '<' ||
1251           new_text[i] == '>' ||
1252           new_text[i] == '"' ||
1253           new_text[i] == '|' ||
1254           new_text[i] == '*' ||
1255           new_text[i] == '?')
1256         break;
1257     }
1258
1259   if (i < new_text_length ||
1260       /* Disallow entering text that would cause a colon to be anywhere except
1261        * after a drive letter.
1262        */
1263       (colon != NULL &&
1264        *position + (colon - new_text) != 1) ||
1265       (new_text_length > 0 &&
1266        *position <= 1 &&
1267        GTK_ENTRY (chooser_entry)->text_length >= 2 &&
1268        gtk_entry_get_text (GTK_ENTRY (chooser_entry))[1] == ':'))
1269     {
1270       gtk_widget_error_bell (GTK_WIDGET (chooser_entry));
1271       g_signal_stop_emission_by_name (chooser_entry, "insert_text");
1272       return FALSE;
1273     }
1274
1275   return TRUE;
1276 }
1277
1278 static void
1279 delete_text_callback (GtkFileChooserEntry *chooser_entry,
1280                       gint                 start_pos,
1281                       gint                 end_pos,
1282                       gpointer             user_data)
1283 {
1284   /* If deleting a drive letter, delete the colon, too */
1285   if (start_pos == 0 && end_pos == 1 &&
1286       GTK_ENTRY (chooser_entry)->text_length >= 2 &&
1287       gtk_entry_get_text (GTK_ENTRY (chooser_entry))[1] == ':')
1288     {
1289       g_signal_handlers_block_by_func (chooser_entry,
1290                                        G_CALLBACK (delete_text_callback),
1291                                        user_data);
1292       gtk_editable_delete_text (GTK_EDITABLE (chooser_entry), 0, 1);
1293       g_signal_handlers_unblock_by_func (chooser_entry,
1294                                          G_CALLBACK (delete_text_callback),
1295                                          user_data);
1296     }
1297 }
1298 #endif
1299
1300 /**
1301  * _gtk_file_chooser_entry_new:
1302  * @eat_tabs: If %FALSE, allow focus navigation with the tab key.
1303  *
1304  * Creates a new #GtkFileChooserEntry object. #GtkFileChooserEntry
1305  * is an internal implementation widget for the GTK+ file chooser
1306  * which is an entry with completion with respect to a
1307  * #GtkFileSystem object.
1308  *
1309  * Return value: the newly created #GtkFileChooserEntry
1310  **/
1311 GtkWidget *
1312 _gtk_file_chooser_entry_new (gboolean eat_tabs)
1313 {
1314   GtkFileChooserEntry *chooser_entry;
1315
1316   chooser_entry = g_object_new (GTK_TYPE_FILE_CHOOSER_ENTRY, NULL);
1317   chooser_entry->eat_tabs = (eat_tabs != FALSE);
1318
1319   return GTK_WIDGET (chooser_entry);
1320 }
1321
1322 /**
1323  * _gtk_file_chooser_entry_set_file_system:
1324  * @chooser_entry: a #GtkFileChooser
1325  * @file_system: an object implementing #GtkFileSystem
1326  *
1327  * Sets the file system for @chooser_entry.
1328  **/
1329 void
1330 _gtk_file_chooser_entry_set_file_system (GtkFileChooserEntry *chooser_entry,
1331                                          GtkFileSystem       *file_system)
1332 {
1333   g_return_if_fail (GTK_IS_FILE_CHOOSER_ENTRY (chooser_entry));
1334   g_return_if_fail (GTK_IS_FILE_SYSTEM (file_system));
1335
1336   if (file_system != chooser_entry->file_system)
1337     {
1338       if (chooser_entry->file_system)
1339         g_object_unref (chooser_entry->file_system);
1340
1341       chooser_entry->file_system = g_object_ref (file_system);
1342     }
1343 }
1344
1345 /**
1346  * _gtk_file_chooser_entry_set_base_folder:
1347  * @chooser_entry: a #GtkFileChooserEntry
1348  * @path: path of a folder in the chooser entries current file system.
1349  *
1350  * Sets the folder with respect to which completions occur.
1351  **/
1352 void
1353 _gtk_file_chooser_entry_set_base_folder (GtkFileChooserEntry *chooser_entry,
1354                                          const GtkFilePath   *path)
1355 {
1356   if (chooser_entry->base_folder)
1357     gtk_file_path_free (chooser_entry->base_folder);
1358
1359   chooser_entry->base_folder = gtk_file_path_copy (path);
1360
1361   clear_completions (chooser_entry);
1362   _gtk_file_chooser_entry_select_filename (chooser_entry);
1363 }
1364
1365 /**
1366  * _gtk_file_chooser_entry_get_current_folder:
1367  * @chooser_entry: a #GtkFileChooserEntry
1368  *
1369  * Gets the current folder for the #GtkFileChooserEntry. If the
1370  * user has only entered a filename, this will be the base folder
1371  * (see _gtk_file_chooser_entry_set_base_folder()), but if the
1372  * user has entered a relative or absolute path, then it will
1373  * be different. If the user has entered a relative or absolute
1374  * path that doesn't point to a folder in the file system, it will
1375  * be %NULL.
1376  *
1377  * Return value: the path of current folder - this value is owned by the
1378  *  chooser entry and must not be modified or freed.
1379  **/
1380 const GtkFilePath *
1381 _gtk_file_chooser_entry_get_current_folder (GtkFileChooserEntry *chooser_entry)
1382 {
1383   if (chooser_entry->has_completion)
1384     {
1385       gtk_editable_set_position (GTK_EDITABLE (chooser_entry),
1386                                  GTK_ENTRY (chooser_entry)->text_length);
1387     }
1388   return chooser_entry->current_folder_path;
1389 }
1390
1391 /**
1392  * _gtk_file_chooser_entry_get_file_part:
1393  * @chooser_entry: a #GtkFileChooserEntry
1394  *
1395  * Gets the non-folder portion of whatever the user has entered
1396  * into the file selector. What is returned is a UTF-8 string,
1397  * and if a filename path is needed, gtk_file_system_make_path()
1398  * must be used
1399   *
1400  * Return value: the entered filename - this value is owned by the
1401  *  chooser entry and must not be modified or freed.
1402  **/
1403 const gchar *
1404 _gtk_file_chooser_entry_get_file_part (GtkFileChooserEntry *chooser_entry)
1405 {
1406   if (chooser_entry->has_completion)
1407     {
1408       gtk_editable_set_position (GTK_EDITABLE (chooser_entry),
1409                                  GTK_ENTRY (chooser_entry)->text_length);
1410     }
1411
1412   refresh_current_folder_and_file_part (chooser_entry, REFRESH_WHOLE_TEXT);
1413
1414   return chooser_entry->file_part;
1415 }
1416
1417 /**
1418  * _gtk_file_chooser_entry_set_file_part:
1419  * @chooser_entry: a #GtkFileChooserEntry
1420  * @file_part: text to display in the entry, in UTF-8
1421  *
1422  * Sets the current text shown in the file chooser entry.
1423  **/
1424 void
1425 _gtk_file_chooser_entry_set_file_part (GtkFileChooserEntry *chooser_entry,
1426                                        const gchar         *file_part)
1427 {
1428   g_return_if_fail (GTK_IS_FILE_CHOOSER_ENTRY (chooser_entry));
1429
1430   chooser_entry->in_change = TRUE;
1431   clear_completions (chooser_entry);
1432   gtk_entry_set_text (GTK_ENTRY (chooser_entry), file_part);
1433   chooser_entry->in_change = FALSE;
1434 }
1435
1436
1437 /**
1438  * _gtk_file_chooser_entry_set_action:
1439  * @chooser_entry: a #GtkFileChooserEntry
1440  * @action: the action which is performed by the file selector using this entry
1441  *
1442  * Sets action which is performed by the file selector using this entry.
1443  * The #GtkFileChooserEntry will use different completion strategies for
1444  * different actions.
1445  **/
1446 void
1447 _gtk_file_chooser_entry_set_action (GtkFileChooserEntry *chooser_entry,
1448                                     GtkFileChooserAction action)
1449 {
1450   g_return_if_fail (GTK_IS_FILE_CHOOSER_ENTRY (chooser_entry));
1451
1452   if (chooser_entry->action != action)
1453     {
1454       GtkEntryCompletion *comp;
1455
1456       chooser_entry->action = action;
1457
1458       comp = gtk_entry_get_completion (GTK_ENTRY (chooser_entry));
1459
1460       switch (action)
1461         {
1462         case GTK_FILE_CHOOSER_ACTION_OPEN:
1463         case GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER:
1464           gtk_entry_completion_set_popup_single_match (comp, FALSE);
1465           break;
1466         case GTK_FILE_CHOOSER_ACTION_SAVE:
1467         case GTK_FILE_CHOOSER_ACTION_CREATE_FOLDER:
1468           gtk_entry_completion_set_popup_single_match (comp, TRUE);
1469           break;
1470         }
1471     }
1472 }
1473
1474
1475 /**
1476  * _gtk_file_chooser_entry_get_action:
1477  * @chooser_entry: a #GtkFileChooserEntry
1478  *
1479  * Gets the action for this entry.
1480  *
1481  * Returns: the action
1482  **/
1483 GtkFileChooserAction
1484 _gtk_file_chooser_entry_get_action (GtkFileChooserEntry *chooser_entry)
1485 {
1486   g_return_val_if_fail (GTK_IS_FILE_CHOOSER_ENTRY (chooser_entry),
1487                         GTK_FILE_CHOOSER_ACTION_OPEN);
1488
1489   return chooser_entry->action;
1490 }
1491
1492 gboolean
1493 _gtk_file_chooser_entry_get_is_folder (GtkFileChooserEntry *chooser_entry,
1494                                        const GtkFilePath   *path)
1495 {
1496   gboolean retval = FALSE;
1497
1498   if (chooser_entry->current_folder)
1499     {
1500       GtkFileInfo *file_info;
1501
1502       file_info = gtk_file_folder_get_info (chooser_entry->current_folder,
1503                                             path, NULL);
1504       if (file_info)
1505         {
1506           retval = gtk_file_info_get_is_folder (file_info);
1507           gtk_file_info_free (file_info);
1508         }
1509     }
1510
1511   return retval;
1512 }
1513
1514
1515 /*
1516  * _gtk_file_chooser_entry_select_filename:
1517  * @chooser_entry: a #GtkFileChooserEntry
1518  *
1519  * Selects the filename (without the extension) for user edition.
1520  */
1521 void
1522 _gtk_file_chooser_entry_select_filename (GtkFileChooserEntry *chooser_entry)
1523 {
1524   const gchar *str, *ext;
1525   glong len = -1;
1526
1527   if (chooser_entry->action == GTK_FILE_CHOOSER_ACTION_SAVE)
1528     {
1529       str = gtk_entry_get_text (GTK_ENTRY (chooser_entry));
1530       ext = g_strrstr (str, ".");
1531
1532       if (ext)
1533        len = g_utf8_pointer_to_offset (str, ext);
1534     }
1535
1536   gtk_editable_select_region (GTK_EDITABLE (chooser_entry), 0, (gint) len);
1537 }
1538