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 "gtkalignment.h"
  28 #include "gtkcelllayout.h"
  29 #include "gtkcellrenderertext.h"
  30 #include "gtkentry.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_AUTOCOMPLETE,
  52   LOAD_COMPLETE_EXPLICIT_COMPLETION
  53 } LoadCompleteAction;
  54
  55 typedef enum
  56 {
  57   REFRESH_OK,
  58   REFRESH_INVALID_INPUT,
  59   REFRESH_INCOMPLETE_HOSTNAME,
  60   REFRESH_NONEXISTENT,
  61   REFRESH_NOT_LOCAL
  62 } RefreshStatus;
  63
  64 struct _GtkFileChooserEntry
  65 {
  66   GtkEntry parent_instance;
  67
  68   GtkFileChooserAction action;
  69
  70   GtkFileSystem *file_system;
  71   GFile *base_folder;
  72   GFile *current_folder_file;
  73   gchar *file_part;
  74   gint file_part_pos;
  75
  76   /* Folder being loaded or already loaded */
  77   GtkFolder *current_folder;
  78   GCancellable *load_folder_cancellable;
  79
  80   LoadCompleteAction load_complete_action;
  81
  82   GtkListStore *completion_store;
  83
  84   guint start_autocompletion_idle_id;
  85
  86   GtkWidget *completion_feedback_window;
  87   GtkWidget *completion_feedback_label;
  88   guint completion_feedback_timeout_id;
  89
  90   guint has_completion : 1;
  91   guint in_change      : 1;
  92   guint eat_tabs       : 1;
  93   guint local_only     : 1;
  94 };
  95
  96 enum
  97 {
  98   DISPLAY_NAME_COLUMN,
  99   FILE_COLUMN,
 100   N_COLUMNS
 101 };
 102
 103 #define COMPLETION_FEEDBACK_TIMEOUT_MS 2000
 104
 105 static void     gtk_file_chooser_entry_iface_init     (GtkEditableInterface *iface);
 106
 107 static void     gtk_file_chooser_entry_finalize       (GObject          *object);
 108 static void     gtk_file_chooser_entry_dispose        (GObject          *object);
 109 static void     gtk_file_chooser_entry_grab_focus     (GtkWidget        *widget);
 110 static void     gtk_file_chooser_entry_unmap          (GtkWidget        *widget);
 111 static gboolean gtk_file_chooser_entry_key_press_event (GtkWidget *widget,
 112                                                         GdkEventKey *event);
 113 static gboolean gtk_file_chooser_entry_focus_out_event (GtkWidget       *widget,
 114                                                         GdkEventFocus   *event);
 115 static void     gtk_file_chooser_entry_activate       (GtkEntry         *entry);
 116 static void     gtk_file_chooser_entry_do_insert_text (GtkEditable *editable,
 117                                                        const gchar *new_text,
 118                                                        gint         new_text_length,
 119                                                        gint        *position);
 120 static void     gtk_file_chooser_entry_do_delete_text (GtkEditable *editable,
 121                                                        gint         start_pos,
 122                                                        gint         end_pos);
 123 static void     gtk_file_chooser_entry_set_position (GtkEditable *editable,
 124                                                      gint         position);
 125 static void     gtk_file_chooser_entry_set_selection_bounds (GtkEditable *editable,
 126                                                              gint         start_pos,
 127                                                              gint         end_pos);
 128
 129 #ifdef G_OS_WIN32
 130 static gint     insert_text_callback      (GtkFileChooserEntry *widget,
 131                                            const gchar         *new_text,
 132                                            gint                 new_text_length,
 133                                            gint                *position,
 134                                            gpointer             user_data);
 135 static void     delete_text_callback      (GtkFileChooserEntry *widget,
 136                                            gint                 start_pos,
 137                                            gint                 end_pos,
 138                                            gpointer             user_data);
 139 #endif
 140
 141 static gboolean match_selected_callback   (GtkEntryCompletion  *completion,
 142                                            GtkTreeModel        *model,
 143                                            GtkTreeIter         *iter,
 144                                            GtkFileChooserEntry *chooser_entry);
 145 static gboolean completion_match_func     (GtkEntryCompletion  *comp,
 146                                            const char          *key,
 147                                            GtkTreeIter         *iter,
 148                                            gpointer             data);
 149 static char    *maybe_append_separator_to_file (GtkFileChooserEntry *chooser_entry,
 150                                                 GFile               *file,
 151                                                 gchar               *display_name,
 152                                                 gboolean            *appended);
 153
 154 typedef enum {
 155   REFRESH_UP_TO_CURSOR_POSITION,
 156   REFRESH_WHOLE_TEXT
 157 } RefreshMode;
 158
 159 static RefreshStatus refresh_current_folder_and_file_part (GtkFileChooserEntry *chooser_entry,
 160                                                   RefreshMode refresh_mode);
 161 static void finished_loading_cb (GtkFolder *folder,
 162                                  gpointer   data);
 163 static void autocomplete (GtkFileChooserEntry *chooser_entry);
 164 static void install_start_autocompletion_idle (GtkFileChooserEntry *chooser_entry);
 165 static void remove_completion_feedback (GtkFileChooserEntry *chooser_entry);
 166 static void pop_up_completion_feedback (GtkFileChooserEntry *chooser_entry,
 167                                         const gchar         *feedback);
 168
 169 static GtkEditableInterface *parent_editable_iface;
 170
 171 G_DEFINE_TYPE_WITH_CODE (GtkFileChooserEntry, _gtk_file_chooser_entry, GTK_TYPE_ENTRY,
 172                          G_IMPLEMENT_INTERFACE (GTK_TYPE_EDITABLE,
 173                                                 gtk_file_chooser_entry_iface_init))
 174
 175 static void
 176 _gtk_file_chooser_entry_class_init (GtkFileChooserEntryClass *class)
 177 {
 178   GObjectClass *gobject_class = G_OBJECT_CLASS (class);
 179   GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
 180   GtkEntryClass *entry_class = GTK_ENTRY_CLASS (class);
 181
 182   gobject_class->finalize = gtk_file_chooser_entry_finalize;
 183   gobject_class->dispose = gtk_file_chooser_entry_dispose;
 184
 185   widget_class->grab_focus = gtk_file_chooser_entry_grab_focus;
 186   widget_class->unmap = gtk_file_chooser_entry_unmap;
 187   widget_class->key_press_event = gtk_file_chooser_entry_key_press_event;
 188   widget_class->focus_out_event = gtk_file_chooser_entry_focus_out_event;
 189
 190   entry_class->activate = gtk_file_chooser_entry_activate;
 191 }
 192
 193 static void
 194 gtk_file_chooser_entry_iface_init (GtkEditableInterface *iface)
 195 {
 196   parent_editable_iface = g_type_interface_peek_parent (iface);
 197
 198   iface->do_insert_text = gtk_file_chooser_entry_do_insert_text;
 199   iface->do_delete_text = gtk_file_chooser_entry_do_delete_text;
 200   iface->set_position = gtk_file_chooser_entry_set_position;
 201   iface->set_selection_bounds = gtk_file_chooser_entry_set_selection_bounds;
 202 }
 203
 204 static void
 205 _gtk_file_chooser_entry_init (GtkFileChooserEntry *chooser_entry)
 206 {
 207   GtkEntryCompletion *comp;
 208   GtkCellRenderer *cell;
 209
 210   chooser_entry->local_only = TRUE;
 211
 212   g_object_set (chooser_entry, "truncate-multiline", TRUE, NULL);
 213
 214   comp = gtk_entry_completion_new ();
 215   gtk_entry_completion_set_popup_single_match (comp, FALSE);
 216
 217   gtk_entry_completion_set_match_func (comp,
 218                                        completion_match_func,
 219                                        chooser_entry,
 220                                        NULL);
 221
 222   cell = gtk_cell_renderer_text_new ();
 223   gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (comp),
 224                               cell, TRUE);
 225   gtk_cell_layout_add_attribute (GTK_CELL_LAYOUT (comp),
 226                                  cell,
 227                                  "text", 0);
 228
 229   g_signal_connect (comp, "match-selected",
 230                     G_CALLBACK (match_selected_callback), chooser_entry);
 231
 232   gtk_entry_set_completion (GTK_ENTRY (chooser_entry), comp);
 233   g_object_unref (comp);
 234
 235 #ifdef G_OS_WIN32
 236   g_signal_connect (chooser_entry, "insert-text",
 237                     G_CALLBACK (insert_text_callback), NULL);
 238   g_signal_connect (chooser_entry, "delete-text",
 239                     G_CALLBACK (delete_text_callback), NULL);
 240 #endif
 241 }
 242
 243 static void
 244 gtk_file_chooser_entry_finalize (GObject *object)
 245 {
 246   GtkFileChooserEntry *chooser_entry = GTK_FILE_CHOOSER_ENTRY (object);
 247
 248   if (chooser_entry->base_folder)
 249     g_object_unref (chooser_entry->base_folder);
 250
 251   if (chooser_entry->current_folder)
 252     g_object_unref (chooser_entry->current_folder);
 253
 254   if (chooser_entry->current_folder_file)
 255     g_object_unref (chooser_entry->current_folder_file);
 256
 257   g_free (chooser_entry->file_part);
 258
 259   G_OBJECT_CLASS (_gtk_file_chooser_entry_parent_class)->finalize (object);
 260 }
 261
 262 static void
 263 discard_current_folder (GtkFileChooserEntry *chooser_entry)
 264 {
 265   if (chooser_entry->current_folder)
 266     {
 267       g_signal_handlers_disconnect_by_func (chooser_entry->current_folder,
 268                                             G_CALLBACK (finished_loading_cb), chooser_entry);
 269       g_object_unref (chooser_entry->current_folder);
 270       chooser_entry->current_folder = NULL;
 271     }
 272 }
 273
 274 static void
 275 discard_loading_and_current_folder_file (GtkFileChooserEntry *chooser_entry)
 276 {
 277   if (chooser_entry->load_folder_cancellable)
 278     {
 279       g_cancellable_cancel (chooser_entry->load_folder_cancellable);
 280       chooser_entry->load_folder_cancellable = NULL;
 281     }
 282
 283   if (chooser_entry->current_folder_file)
 284     {
 285       g_object_unref (chooser_entry->current_folder_file);
 286       chooser_entry->current_folder_file = NULL;
 287     }
 288 }
 289
 290 static void
 291 gtk_file_chooser_entry_dispose (GObject *object)
 292 {
 293   GtkFileChooserEntry *chooser_entry = GTK_FILE_CHOOSER_ENTRY (object);
 294
 295   remove_completion_feedback (chooser_entry);
 296   discard_current_folder (chooser_entry);
 297   discard_loading_and_current_folder_file (chooser_entry);
 298
 299   if (chooser_entry->start_autocompletion_idle_id != 0)
 300     {
 301       g_source_remove (chooser_entry->start_autocompletion_idle_id);
 302       chooser_entry->start_autocompletion_idle_id = 0;
 303     }
 304
 305   if (chooser_entry->completion_store)
 306     {
 307       g_object_unref (chooser_entry->completion_store);
 308       chooser_entry->completion_store = NULL;
 309     }
 310
 311   if (chooser_entry->file_system)
 312     {
 313       g_object_unref (chooser_entry->file_system);
 314       chooser_entry->file_system = NULL;
 315     }
 316
 317   G_OBJECT_CLASS (_gtk_file_chooser_entry_parent_class)->dispose (object);
 318 }
 319
 320 /* Match functions for the GtkEntryCompletion */
 321 static gboolean
 322 match_selected_callback (GtkEntryCompletion  *completion,
 323                          GtkTreeModel        *model,
 324                          GtkTreeIter         *iter,
 325                          GtkFileChooserEntry *chooser_entry)
 326 {
 327   char *display_name;
 328   GFile *file;
 329   gint pos;
 330   gboolean dummy;
 331
 332   gtk_tree_model_get (model, iter,
 333                       DISPLAY_NAME_COLUMN, &display_name,
 334                       FILE_COLUMN, &file,
 335                       -1);
 336
 337   if (!display_name || !file)
 338     {
 339       /* these shouldn't complain if passed NULL */
 340       g_object_unref (file);
 341       g_free (display_name);
 342       return FALSE;
 343     }
 344
 345   display_name = maybe_append_separator_to_file (chooser_entry, file, display_name, &dummy);
 346
 347   pos = chooser_entry->file_part_pos;
 348
 349   /* We don't set in_change here as we want to update the current_folder
 350    * variable */
 351   gtk_editable_delete_text (GTK_EDITABLE (chooser_entry),
 352                             pos, -1);
 353   gtk_editable_insert_text (GTK_EDITABLE (chooser_entry),
 354                             display_name, -1,
 355                             &pos);
 356   gtk_editable_set_position (GTK_EDITABLE (chooser_entry), -1);
 357
 358   g_object_unref (file);
 359   g_free (display_name);
 360
 361   return TRUE;
 362 }
 363
 364 /* Match function for the GtkEntryCompletion */
 365 static gboolean
 366 completion_match_func (GtkEntryCompletion *comp,
 367                        const char         *key_unused,
 368                        GtkTreeIter        *iter,
 369                        gpointer            data)
 370 {
 371   GtkFileChooserEntry *chooser_entry;
 372   char *name;
 373   gboolean result;
 374   char *norm_file_part;
 375   char *norm_name;
 376
 377   chooser_entry = GTK_FILE_CHOOSER_ENTRY (data);
 378
 379   /* We ignore the key because it is the contents of the entry.  Instead, we
 380    * just use our precomputed file_part.
 381    */
 382   if (!chooser_entry->file_part)
 383     {
 384       return FALSE;
 385     }
 386
 387   gtk_tree_model_get (GTK_TREE_MODEL (chooser_entry->completion_store), iter, DISPLAY_NAME_COLUMN, &name, -1);
 388   if (!name)
 389     {
 390       return FALSE; /* Uninitialized row, ugh */
 391     }
 392
 393   /* If we have an empty file_part, then we're at the root of a directory.  In
 394    * that case, we want to match all non-dot files.  We might want to match
 395    * dot_files too if show_hidden is TRUE on the fileselector in the future.
 396    */
 397   /* Additionally, support for gnome .hidden files would be sweet, too */
 398   if (chooser_entry->file_part[0] == '\000')
 399     {
 400       if (name[0] == '.')
 401         result = FALSE;
 402       else
 403         result = TRUE;
 404       g_free (name);
 405
 406       return result;
 407     }
 408
 409
 410   norm_file_part = g_utf8_normalize (chooser_entry->file_part, -1, G_NORMALIZE_ALL);
 411   norm_name = g_utf8_normalize (name, -1, G_NORMALIZE_ALL);
 412
 413 #ifdef G_PLATFORM_WIN32
 414   {
 415     gchar *temp;
 416
 417     temp = norm_file_part;
 418     norm_file_part = g_utf8_casefold (norm_file_part, -1);
 419     g_free (temp);
 420
 421     temp = norm_name;
 422     norm_name = g_utf8_casefold (norm_name, -1);
 423     g_free (temp);
 424   }
 425 #endif
 426
 427   result = (strncmp (norm_file_part, norm_name, strlen (norm_file_part)) == 0);
 428
 429   g_free (norm_file_part);
 430   g_free (norm_name);
 431   g_free (name);
 432
 433   return result;
 434 }
 435
 436 static void
 437 clear_completions (GtkFileChooserEntry *chooser_entry)
 438 {
 439   chooser_entry->has_completion = FALSE;
 440   chooser_entry->load_complete_action = LOAD_COMPLETE_NOTHING;
 441
 442   remove_completion_feedback (chooser_entry);
 443 }
 444
 445 static void
 446 beep (GtkFileChooserEntry *chooser_entry)
 447 {
 448   gtk_widget_error_bell (GTK_WIDGET (chooser_entry));
 449 }
 450
 451 /* This function will append a directory separator to paths to
 452  * display_name iff the path associated with it is a directory.
 453  * maybe_append_separator_to_file will g_free the display_name and
 454  * return a new one if needed.  Otherwise, it will return the old one.
 455  * You should be safe calling
 456  *
 457  * display_name = maybe_append_separator_to_file (entry, file, display_name, &appended);
 458  * ...
 459  * g_free (display_name);
 460  */
 461 static char *
 462 maybe_append_separator_to_file (GtkFileChooserEntry *chooser_entry,
 463                                 GFile               *file,
 464                                 gchar               *display_name,
 465                                 gboolean            *appended)
 466 {
 467   *appended = FALSE;
 468
 469   if (!g_str_has_suffix (display_name, G_DIR_SEPARATOR_S) && file)
 470     {
 471       GFileInfo *info;
 472
 473       info = _gtk_folder_get_info (chooser_entry->current_folder, file);
 474
 475       if (info)
 476         {
 477           if (_gtk_file_info_consider_as_directory (info))
 478             {
 479               gchar *tmp = display_name;
 480               display_name = g_strconcat (tmp, G_DIR_SEPARATOR_S, NULL);
 481               *appended = TRUE;
 482               g_free (tmp);
 483             }
 484
 485           g_object_unref (info);
 486         }
 487     }
 488
 489   return display_name;
 490 }
 491
 492 static char *
 493 trim_dir_separator_suffix (const char *str)
 494 {
 495   int len;
 496
 497   len = strlen (str);
 498   if (len > 0 && G_IS_DIR_SEPARATOR (str[len - 1]))
 499     return g_strndup (str, len - 1);
 500   else
 501     return g_strdup (str);
 502 }
 503
 504 /* Determines if the completion model has entries with a common prefix relative
 505  * to the current contents of the entry.  Also, if there's one and only one such
 506  * path, stores it in unique_path_ret.
 507  */
 508 static gboolean
 509 find_common_prefix (GtkFileChooserEntry *chooser_entry,
 510                     gchar               **common_prefix_ret,
 511                     GFile               **unique_file_ret,
 512                     gboolean             *is_complete_not_unique_ret,
 513                     gboolean             *prefix_expands_the_file_part_ret,
 514                     GError              **error)
 515 {
 516   GtkEditable *editable;
 517   GtkTreeIter iter;
 518   gboolean parsed;
 519   gboolean valid;
 520   char *text_up_to_cursor;
 521   GFile *parsed_folder_file;
 522   char *parsed_file_part;
 523
 524   *common_prefix_ret = NULL;
 525   *unique_file_ret = NULL;
 526   *is_complete_not_unique_ret = FALSE;
 527   *prefix_expands_the_file_part_ret = FALSE;
 528
 529   editable = GTK_EDITABLE (chooser_entry);
 530
 531   text_up_to_cursor = gtk_editable_get_chars (editable, 0, gtk_editable_get_position (editable));
 532
 533   parsed = _gtk_file_system_parse (chooser_entry->file_system,
 534                                    chooser_entry->base_folder,
 535                                    text_up_to_cursor,
 536                                    &parsed_folder_file,
 537                                    &parsed_file_part,
 538                                    error);
 539
 540   g_free (text_up_to_cursor);
 541
 542   if (!parsed)
 543     return FALSE;
 544
 545   g_assert (parsed_folder_file != NULL
 546             && chooser_entry->current_folder != NULL
 547             && g_file_equal (parsed_folder_file, chooser_entry->current_folder_file));
 548
 549   g_object_unref (parsed_folder_file);
 550
 551   /* First pass: find the common prefix */
 552
 553   valid = gtk_tree_model_get_iter_first (GTK_TREE_MODEL (chooser_entry->completion_store), &iter);
 554
 555   while (valid)
 556     {
 557       gchar *display_name;
 558       GFile *file;
 559
 560       gtk_tree_model_get (GTK_TREE_MODEL (chooser_entry->completion_store),
 561                           &iter,
 562                           DISPLAY_NAME_COLUMN, &display_name,
 563                           FILE_COLUMN, &file,
 564                           -1);
 565
 566       if (g_str_has_prefix (display_name, parsed_file_part))
 567         {
 568           if (!*common_prefix_ret)
 569             {
 570               *common_prefix_ret = trim_dir_separator_suffix (display_name);
 571               *unique_file_ret = g_object_ref (file);
 572             }
 573           else
 574             {
 575               gchar *p = *common_prefix_ret;
 576               const gchar *q = display_name;
 577
 578               while (*p && *p == *q)
 579                 {
 580                   p++;
 581                   q++;
 582                 }
 583
 584               *p = '\0';
 585
 586               if (*unique_file_ret)
 587                 {
 588                   g_object_unref (*unique_file_ret);
 589                   *unique_file_ret = NULL;
 590                 }
 591             }
 592         }
 593
 594       g_free (display_name);
 595       g_object_unref (file);
 596       valid = gtk_tree_model_iter_next (GTK_TREE_MODEL (chooser_entry->completion_store), &iter);
 597     }
 598
 599   /* Second pass: see if the prefix we found is a complete match */
 600
 601   if (*common_prefix_ret != NULL)
 602     {
 603       valid = gtk_tree_model_get_iter_first (GTK_TREE_MODEL (chooser_entry->completion_store), &iter);
 604
 605       while (valid)
 606         {
 607           gchar *display_name;
 608           int len;
 609
 610           gtk_tree_model_get (GTK_TREE_MODEL (chooser_entry->completion_store),
 611                               &iter,
 612                               DISPLAY_NAME_COLUMN, &display_name,
 613                               -1);
 614           len = strlen (display_name);
 615           g_assert (len > 0);
 616
 617           if (G_IS_DIR_SEPARATOR (display_name[len - 1]))
 618             len--;
 619
 620           if (*unique_file_ret == NULL && strncmp (*common_prefix_ret, display_name, len) == 0)
 621             *is_complete_not_unique_ret = TRUE;
 622
 623           g_free (display_name);
 624           valid = gtk_tree_model_iter_next (GTK_TREE_MODEL (chooser_entry->completion_store), &iter);
 625         }
 626
 627       /* Finally:  Did we generate a new completion, or was the user's input already completed as far as it could go? */
 628
 629       *prefix_expands_the_file_part_ret = g_utf8_strlen (*common_prefix_ret, -1) > g_utf8_strlen (parsed_file_part, -1);
 630     }
 631
 632   g_free (parsed_file_part);
 633
 634   return TRUE;
 635 }
 636
 637 static gboolean
 638 char_after_cursor_is_directory_separator (GtkFileChooserEntry *chooser_entry)
 639 {
 640   int cursor_pos;
 641   gboolean result;
 642
 643   result = FALSE;
 644
 645   cursor_pos = gtk_editable_get_position (GTK_EDITABLE (chooser_entry));
 646   if (cursor_pos < gtk_entry_get_text_length (GTK_ENTRY (chooser_entry)))
 647     {
 648       char *next_char_str;
 649
 650       next_char_str = gtk_editable_get_chars (GTK_EDITABLE (chooser_entry), cursor_pos, cursor_pos + 1);
 651       if (G_IS_DIR_SEPARATOR (*next_char_str))
 652         result = TRUE;
 653
 654       g_free (next_char_str);
 655     }
 656
 657   return result;
 658 }
 659
 660 typedef enum {
 661   INVALID_INPUT,                /* what the user typed is bogus */
 662   NO_MATCH,                     /* no matches based on what the user typed */
 663   NOTHING_INSERTED_COMPLETE,    /* what the user typed is already completed as far as it will go */
 664   NOTHING_INSERTED_UNIQUE,      /* what the user typed is already completed, and is a unique match */
 665   COMPLETED,                    /* completion inserted (ambiguous suffix) */
 666   COMPLETED_UNIQUE,             /* completion inserted, and it is a complete name and a unique match */
 667   COMPLETE_BUT_NOT_UNIQUE       /* completion inserted, it is a complete name but not unique */
 668 } CommonPrefixResult;
 669
 670 /* Finds a common prefix based on the contents of the entry
 671  * and mandatorily appends it
 672  */
 673 static CommonPrefixResult
 674 append_common_prefix (GtkFileChooserEntry *chooser_entry,
 675                       gboolean             highlight,
 676                       gboolean             show_errors)
 677 {
 678   gchar *common_prefix;
 679   GFile *unique_file;
 680   gboolean is_complete_not_unique;
 681   gboolean prefix_expands_the_file_part;
 682   GError *error;
 683   CommonPrefixResult result = NO_MATCH;
 684   gboolean have_result;
 685
 686   clear_completions (chooser_entry);
 687
 688   if (chooser_entry->completion_store == NULL)
 689     return NO_MATCH;
 690
 691   error = NULL;
 692   if (!find_common_prefix (chooser_entry, &common_prefix, &unique_file, &is_complete_not_unique, &prefix_expands_the_file_part, &error))
 693     {
 694       /* If the user types an incomplete hostname ("http://foo" without
 695        * a slash after that), it's not an error.  We just don't want to
 696        * pop up a meaningless completion window in that state.
 697        */
 698       if (!g_error_matches (error, GTK_FILE_CHOOSER_ERROR, GTK_FILE_CHOOSER_ERROR_INCOMPLETE_HOSTNAME)
 699           && show_errors)
 700         {
 701           beep (chooser_entry);
 702           pop_up_completion_feedback (chooser_entry, _("Invalid path"));
 703         }
 704
 705       g_error_free (error);
 706
 707       return INVALID_INPUT;
 708     }
 709
 710   have_result = FALSE;
 711
 712   if (unique_file)
 713     {
 714       if (!char_after_cursor_is_directory_separator (chooser_entry))
 715         {
 716           gboolean appended;
 717
 718           common_prefix = maybe_append_separator_to_file (chooser_entry,
 719                                                           unique_file,
 720                                                           common_prefix,
 721                                                           &appended);
 722           if (appended)
 723             prefix_expands_the_file_part = TRUE;
 724         }
 725
 726       g_object_unref (unique_file);
 727
 728       if (prefix_expands_the_file_part)
 729         result = COMPLETED_UNIQUE;
 730       else
 731         result = NOTHING_INSERTED_UNIQUE;
 732
 733       have_result = TRUE;
 734     }
 735   else
 736     {
 737       if (is_complete_not_unique)
 738         {
 739           result = COMPLETE_BUT_NOT_UNIQUE;
 740           have_result = TRUE;
 741         }
 742     }
 743
 744   if (common_prefix)
 745     {
 746       gint cursor_pos;
 747       gint pos;
 748
 749       cursor_pos = gtk_editable_get_position (GTK_EDITABLE (chooser_entry));
 750
 751       pos = chooser_entry->file_part_pos;
 752
 753       if (prefix_expands_the_file_part)
 754         {
 755           chooser_entry->in_change = TRUE;
 756           gtk_editable_delete_text (GTK_EDITABLE (chooser_entry),
 757                                     pos, cursor_pos);
 758           gtk_editable_insert_text (GTK_EDITABLE (chooser_entry),
 759                                     common_prefix, -1,
 760                                     &pos);
 761           chooser_entry->in_change = FALSE;
 762
 763           if (highlight)
 764             {
 765               /* equivalent to cursor_pos + common_prefix_len); */
 766               gtk_editable_select_region (GTK_EDITABLE (chooser_entry),
 767                                           cursor_pos,
 768                                           pos);
 769               chooser_entry->has_completion = TRUE;
 770             }
 771           else
 772             gtk_editable_set_position (GTK_EDITABLE (chooser_entry), pos);
 773         }
 774       else if (!have_result)
 775         {
 776           result = NOTHING_INSERTED_COMPLETE;
 777           have_result = TRUE;
 778         }
 779
 780       g_free (common_prefix);
 781
 782       if (have_result)
 783         return result;
 784       else
 785         return COMPLETED;
 786     }
 787   else
 788     {
 789       if (have_result)
 790         return result;
 791       else
 792         return NO_MATCH;
 793     }
 794 }
 795
 796 static void
 797 gtk_file_chooser_entry_do_insert_text (GtkEditable *editable,
 798                                        const gchar *new_text,
 799                                        gint         new_text_length,
 800                                        gint        *position)
 801 {
 802   GtkFileChooserEntry *chooser_entry = GTK_FILE_CHOOSER_ENTRY (editable);
 803   gint old_text_len;
 804   gint insert_pos;
 805
 806   old_text_len = gtk_entry_get_text_length (GTK_ENTRY (chooser_entry));
 807   insert_pos = *position;
 808
 809   parent_editable_iface->do_insert_text (editable, new_text, new_text_length, position);
 810
 811   if (chooser_entry->in_change)
 812     return;
 813
 814   remove_completion_feedback (chooser_entry);
 815
 816   if ((chooser_entry->action == GTK_FILE_CHOOSER_ACTION_OPEN
 817        || chooser_entry->action == GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER)
 818       && insert_pos == old_text_len)
 819     install_start_autocompletion_idle (chooser_entry);
 820 }
 821
 822 static void
 823 clear_completions_if_not_in_change (GtkFileChooserEntry *chooser_entry)
 824 {
 825   if (chooser_entry->in_change)
 826     return;
 827
 828   clear_completions (chooser_entry);
 829 }
 830
 831 static void
 832 gtk_file_chooser_entry_do_delete_text (GtkEditable *editable,
 833                                        gint         start_pos,
 834                                        gint         end_pos)
 835 {
 836   GtkFileChooserEntry *chooser_entry = GTK_FILE_CHOOSER_ENTRY (editable);
 837
 838   parent_editable_iface->do_delete_text (editable, start_pos, end_pos);
 839
 840   clear_completions_if_not_in_change (chooser_entry);
 841 }
 842
 843 static void
 844 gtk_file_chooser_entry_set_position (GtkEditable *editable,
 845                                      gint         position)
 846 {
 847   GtkFileChooserEntry *chooser_entry = GTK_FILE_CHOOSER_ENTRY (editable);
 848
 849   parent_editable_iface->set_position (editable, position);
 850
 851   clear_completions_if_not_in_change (chooser_entry);
 852 }
 853
 854 static void
 855 gtk_file_chooser_entry_set_selection_bounds (GtkEditable *editable,
 856                                              gint         start_pos,
 857                                              gint         end_pos)
 858 {
 859   GtkFileChooserEntry *chooser_entry = GTK_FILE_CHOOSER_ENTRY (editable);
 860
 861   parent_editable_iface->set_selection_bounds (editable, start_pos, end_pos);
 862
 863   clear_completions_if_not_in_change (chooser_entry);
 864 }
 865
 866 static void
 867 gtk_file_chooser_entry_grab_focus (GtkWidget *widget)
 868 {
 869   GTK_WIDGET_CLASS (_gtk_file_chooser_entry_parent_class)->grab_focus (widget);
 870   _gtk_file_chooser_entry_select_filename (GTK_FILE_CHOOSER_ENTRY (widget));
 871 }
 872
 873 static void
 874 gtk_file_chooser_entry_unmap (GtkWidget *widget)
 875 {
 876   GtkFileChooserEntry *chooser_entry = GTK_FILE_CHOOSER_ENTRY (widget);
 877
 878   remove_completion_feedback (chooser_entry);
 879
 880   GTK_WIDGET_CLASS (_gtk_file_chooser_entry_parent_class)->unmap (widget);
 881 }
 882
 883 static gboolean
 884 completion_feedback_window_draw_cb (GtkWidget *widget,
 885                                     cairo_t   *cr,
 886                                     gpointer   data)
 887 {
 888   /* Stolen from gtk_tooltip_paint_window() */
 889
 890   GtkFileChooserEntry *chooser_entry = GTK_FILE_CHOOSER_ENTRY (data);
 891   GtkStyleContext *context;
 892
 893   context = gtk_widget_get_style_context (chooser_entry->completion_feedback_window);
 894
 895   gtk_render_background (context, cr, 0, 0,
 896                          gtk_widget_get_allocated_width (widget),
 897                          gtk_widget_get_allocated_height (widget));
 898   gtk_render_frame (context, cr, 0, 0,
 899                     gtk_widget_get_allocated_width (widget),
 900                     gtk_widget_get_allocated_height (widget));
 901
 902   return FALSE;
 903 }
 904
 905 static void
 906 set_invisible_mouse_cursor (GdkWindow *window)
 907 {
 908   GdkDisplay *display;
 909   GdkCursor *cursor;
 910
 911   display = gdk_window_get_display (window);
 912   cursor = gdk_cursor_new_for_display (display, GDK_BLANK_CURSOR);
 913
 914   gdk_window_set_cursor (window, cursor);
 915
 916   g_object_unref (cursor);
 917 }
 918
 919 static void
 920 completion_feedback_window_realize_cb (GtkWidget *widget,
 921                                        gpointer data)
 922 {
 923   /* We hide the mouse cursor inside the completion feedback window, since
 924    * GtkEntry hides the cursor when the user types.  We don't want the cursor to
 925    * come back if the completion feedback ends up where the mouse is.
 926    */
 927   set_invisible_mouse_cursor (gtk_widget_get_window (widget));
 928 }
 929
 930 static void
 931 create_completion_feedback_window (GtkFileChooserEntry *chooser_entry)
 932 {
 933   /* Stolen from gtk_tooltip_init() */
 934
 935   GtkStyleContext *context;
 936   GtkWidget *alignment;
 937   GtkBorder padding, border;
 938
 939   chooser_entry->completion_feedback_window = gtk_window_new (GTK_WINDOW_POPUP);
 940   gtk_window_set_type_hint (GTK_WINDOW (chooser_entry->completion_feedback_window),
 941                             GDK_WINDOW_TYPE_HINT_TOOLTIP);
 942   gtk_widget_set_app_paintable (chooser_entry->completion_feedback_window, TRUE);
 943   gtk_window_set_resizable (GTK_WINDOW (chooser_entry->completion_feedback_window), FALSE);
 944   gtk_widget_set_name (chooser_entry->completion_feedback_window, "gtk-tooltip");
 945
 946   alignment = gtk_alignment_new (0.5, 0.5, 1.0, 1.0);
 947   context = gtk_widget_get_style_context (chooser_entry->completion_feedback_window);
 948   gtk_style_context_add_class (context, GTK_STYLE_CLASS_TOOLTIP);
 949
 950   gtk_style_context_get_padding (context, 0, &padding);
 951   gtk_style_context_get_border (context, 0, &border);
 952
 953   gtk_alignment_set_padding (GTK_ALIGNMENT (alignment),
 954                              border.top + padding.top,
 955                              border.bottom + padding.bottom,
 956                              border.left + padding.left,
 957                              border.right + padding.right);
 958   gtk_container_add (GTK_CONTAINER (chooser_entry->completion_feedback_window), alignment);
 959   gtk_widget_show (alignment);
 960
 961   g_signal_connect (chooser_entry->completion_feedback_window, "draw",
 962                     G_CALLBACK (completion_feedback_window_draw_cb), chooser_entry);
 963   g_signal_connect (chooser_entry->completion_feedback_window, "realize",
 964                     G_CALLBACK (completion_feedback_window_realize_cb), chooser_entry);
 965   /* FIXME: connect to motion-notify-event, and *show* the cursor when the mouse moves */
 966
 967   chooser_entry->completion_feedback_label = gtk_label_new (NULL);
 968   gtk_container_add (GTK_CONTAINER (alignment), chooser_entry->completion_feedback_label);
 969   gtk_widget_show (chooser_entry->completion_feedback_label);
 970 }
 971
 972 static gboolean
 973 completion_feedback_timeout_cb (gpointer data)
 974 {
 975   GtkFileChooserEntry *chooser_entry = GTK_FILE_CHOOSER_ENTRY (data);
 976
 977   chooser_entry->completion_feedback_timeout_id = 0;
 978
 979   remove_completion_feedback (chooser_entry);
 980   return FALSE;
 981 }
 982
 983 static void
 984 install_completion_feedback_timer (GtkFileChooserEntry *chooser_entry)
 985 {
 986   if (chooser_entry->completion_feedback_timeout_id != 0)
 987     g_source_remove (chooser_entry->completion_feedback_timeout_id);
 988
 989   chooser_entry->completion_feedback_timeout_id = gdk_threads_add_timeout (COMPLETION_FEEDBACK_TIMEOUT_MS,
 990                                                                            completion_feedback_timeout_cb,
 991                                                                            chooser_entry);
 992 }
 993
 994 /* Gets the x position of the text cursor in the entry, in widget coordinates */
 995 static void
 996 get_entry_cursor_x (GtkFileChooserEntry *chooser_entry,
 997                     gint                *x_ret)
 998 {
 999   /* FIXME: see the docs for gtk_entry_get_layout_offsets().  As an exercise for
1000    * the reader, you have to implement support for the entry's scroll offset and
1001    * RTL layouts and all the fancy Pango stuff.
1002    */
1003
1004   PangoLayout *layout;
1005   gint layout_x, layout_y;
1006   gint layout_index;
1007   PangoRectangle strong_pos;
1008   gint start_pos, end_pos;
1009
1010   layout = gtk_entry_get_layout (GTK_ENTRY (chooser_entry));
1011
1012   gtk_entry_get_layout_offsets (GTK_ENTRY (chooser_entry), &layout_x, &layout_y);
1013
1014   gtk_editable_get_selection_bounds (GTK_EDITABLE (chooser_entry), &start_pos, &end_pos);
1015   layout_index = gtk_entry_text_index_to_layout_index (GTK_ENTRY (chooser_entry),
1016                                                        end_pos);
1017
1018
1019   pango_layout_get_cursor_pos (layout, layout_index, &strong_pos, NULL);
1020
1021   *x_ret = layout_x + strong_pos.x / PANGO_SCALE;
1022 }
1023
1024 static void
1025 show_completion_feedback_window (GtkFileChooserEntry *chooser_entry)
1026 {
1027   /* More or less stolen from gtk_tooltip_position() */
1028
1029   GtkRequisition feedback_req;
1030   GtkWidget *widget = GTK_WIDGET (chooser_entry);
1031   gint entry_x, entry_y;
1032   gint cursor_x;
1033   GtkAllocation entry_allocation;
1034   int feedback_x, feedback_y;
1035
1036   gtk_widget_get_preferred_size (chooser_entry->completion_feedback_window,
1037                                  &feedback_req, NULL);
1038
1039   gdk_window_get_origin (gtk_widget_get_window (widget), &entry_x, &entry_y);
1040   gtk_widget_get_allocation (widget, &entry_allocation);
1041
1042   get_entry_cursor_x (chooser_entry, &cursor_x);
1043
1044   /* FIXME: fit to the screen if we bump on the screen's edge */
1045   /* cheap "half M-width", use height as approximation of character em-size */
1046   feedback_x = entry_x + cursor_x + entry_allocation.height / 2;
1047   feedback_y = entry_y + (entry_allocation.height - feedback_req.height) / 2;
1048
1049   gtk_window_move (GTK_WINDOW (chooser_entry->completion_feedback_window), feedback_x, feedback_y);
1050   gtk_widget_show (chooser_entry->completion_feedback_window);
1051
1052   install_completion_feedback_timer (chooser_entry);
1053 }
1054
1055 static void
1056 pop_up_completion_feedback (GtkFileChooserEntry *chooser_entry,
1057                             const gchar         *feedback)
1058 {
1059   if (chooser_entry->completion_feedback_window == NULL)
1060     create_completion_feedback_window (chooser_entry);
1061
1062   gtk_label_set_text (GTK_LABEL (chooser_entry->completion_feedback_label), feedback);
1063
1064   show_completion_feedback_window (chooser_entry);
1065 }
1066
1067 static void
1068 remove_completion_feedback (GtkFileChooserEntry *chooser_entry)
1069 {
1070   if (chooser_entry->completion_feedback_window)
1071     gtk_widget_destroy (chooser_entry->completion_feedback_window);
1072
1073   chooser_entry->completion_feedback_window = NULL;
1074   chooser_entry->completion_feedback_label = NULL;
1075
1076   if (chooser_entry->completion_feedback_timeout_id != 0)
1077     {
1078       g_source_remove (chooser_entry->completion_feedback_timeout_id);
1079       chooser_entry->completion_feedback_timeout_id = 0;
1080     }
1081 }
1082
1083 static void
1084 explicitly_complete (GtkFileChooserEntry *chooser_entry)
1085 {
1086   CommonPrefixResult result;
1087
1088   g_assert (chooser_entry->current_folder != NULL);
1089   g_assert (_gtk_folder_is_finished_loading (chooser_entry->current_folder));
1090
1091   /* FIXME: see what Emacs does in case there is no common prefix, or there is more than one match:
1092    *
1093    * - If there is a common prefix, insert it (done)
1094    * - If there is no common prefix, pop up the suggestion window
1095    * - If there are no matches at all, beep and bring up a tooltip (done)
1096    * - If the suggestion window is already up, scroll it
1097    */
1098   result = append_common_prefix (chooser_entry, FALSE, TRUE);
1099
1100   switch (result)
1101     {
1102     case INVALID_INPUT:
1103       /* We already beeped in append_common_prefix(); do nothing here */
1104       break;
1105
1106     case NO_MATCH:
1107       beep (chooser_entry);
1108       /* translators: this text is shown when there are no completions
1109        * for something the user typed in a file chooser entry
1110        */
1111       pop_up_completion_feedback (chooser_entry, _("No match"));
1112       break;
1113
1114     case NOTHING_INSERTED_COMPLETE:
1115       /* FIXME: pop up the suggestion window or scroll it */
1116       break;
1117
1118     case NOTHING_INSERTED_UNIQUE:
1119       /* translators: this text is shown when there is exactly one completion
1120        * for something the user typed in a file chooser entry
1121        */
1122       pop_up_completion_feedback (chooser_entry, _("Sole completion"));
1123       break;
1124
1125     case COMPLETED:
1126       /* Nothing to do */
1127       break;
1128
1129     case COMPLETED_UNIQUE:
1130       /* Nothing to do */
1131       break;
1132
1133     case COMPLETE_BUT_NOT_UNIQUE:
1134       /* translators: this text is shown when the text in a file chooser
1135        * entry is a complete filename, but could be continued to find
1136        * a longer match
1137        */
1138       pop_up_completion_feedback (chooser_entry, _("Complete, but not unique"));
1139       break;
1140
1141     default:
1142       g_assert_not_reached ();
1143     }
1144 }
1145
1146 static void
1147 start_explicit_completion (GtkFileChooserEntry *chooser_entry)
1148 {
1149   RefreshStatus status;
1150   gboolean is_error;
1151   char *feedback_msg;
1152
1153   status = refresh_current_folder_and_file_part (chooser_entry, REFRESH_UP_TO_CURSOR_POSITION);
1154
1155   is_error = FALSE;
1156
1157   switch (status)
1158     {
1159     case REFRESH_OK:
1160       g_assert (chooser_entry->current_folder_file != NULL);
1161
1162       if (chooser_entry->current_folder && _gtk_folder_is_finished_loading (chooser_entry->current_folder))
1163         explicitly_complete (chooser_entry);
1164       else
1165         {
1166           chooser_entry->load_complete_action = LOAD_COMPLETE_EXPLICIT_COMPLETION;
1167
1168           /* Translators: this text is shown while the system is searching
1169            * for possible completions for filenames in a file chooser entry. */
1170           pop_up_completion_feedback (chooser_entry, _("Completing..."));
1171         }
1172
1173       break;
1174
1175     case REFRESH_INVALID_INPUT:
1176       is_error = TRUE;
1177       /* Translators: this is shown in the feedback for Tab-completion in a file
1178        * chooser's text entry, when the user enters an invalid path. */
1179       feedback_msg = _("Invalid path");
1180       break;
1181
1182     case REFRESH_INCOMPLETE_HOSTNAME:
1183       is_error = TRUE;
1184
1185       if (chooser_entry->local_only)
1186         {
1187           /* hostnames in a local_only file chooser?  user error */
1188
1189           /* Translators: this is shown in the feedback for Tab-completion in a
1190            * file chooser's text entry when the user enters something like
1191            * "sftp://blahblah" in an app that only supports local filenames. */
1192           feedback_msg = _("Only local files may be selected");
1193         }
1194       else
1195         {
1196           /* Another option is to complete the hostname based on the remote volumes that are mounted */
1197
1198           /* Translators: this is shown in the feedback for Tab-completion in a
1199            * file chooser's text entry when the user hasn't entered the first '/'
1200            * after a hostname and yet hits Tab (such as "sftp://blahblah[Tab]") */
1201           feedback_msg = _("Incomplete hostname; end it with '/'");
1202         }
1203
1204       break;
1205
1206     case REFRESH_NONEXISTENT:
1207       is_error = TRUE;
1208
1209       /* Translators: this is shown in the feedback for Tab-completion in a file
1210        * chooser's text entry when the user enters a path that does not exist
1211        * and then hits Tab */
1212       feedback_msg = _("Path does not exist");
1213       break;
1214
1215     case REFRESH_NOT_LOCAL:
1216       is_error = TRUE;
1217       feedback_msg = _("Only local files may be selected");
1218       break;
1219
1220     default:
1221       g_assert_not_reached ();
1222       return;
1223     }
1224
1225   if (is_error)
1226     {
1227       g_assert (chooser_entry->current_folder_file == NULL);
1228
1229       beep (chooser_entry);
1230       pop_up_completion_feedback (chooser_entry, feedback_msg);
1231       chooser_entry->load_complete_action = LOAD_COMPLETE_NOTHING;
1232     }
1233 }
1234
1235 static gboolean
1236 gtk_file_chooser_entry_key_press_event (GtkWidget *widget,
1237                                         GdkEventKey *event)
1238 {
1239   GtkFileChooserEntry *chooser_entry;
1240   GtkEditable *editable;
1241   GtkEntry *entry;
1242   GdkModifierType state;
1243   gboolean control_pressed;
1244
1245   chooser_entry = GTK_FILE_CHOOSER_ENTRY (widget);
1246   editable = GTK_EDITABLE (widget);
1247   entry = GTK_ENTRY (widget);
1248
1249   if (!chooser_entry->eat_tabs)
1250     return GTK_WIDGET_CLASS (_gtk_file_chooser_entry_parent_class)->key_press_event (widget, event);
1251
1252   control_pressed = FALSE;
1253
1254   if (gtk_get_current_event_state (&state))
1255     {
1256       if ((state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
1257         control_pressed = TRUE;
1258     }
1259
1260   /* This is a bit evil -- it makes Tab never leave the entry. It basically
1261    * makes it 'safe' for people to hit. */
1262   if (event->keyval == GDK_KEY_Tab && !control_pressed)
1263     {
1264       if (chooser_entry->has_completion)
1265         gtk_editable_set_position (editable, gtk_entry_get_text_length (entry));
1266       else
1267         start_explicit_completion (chooser_entry);
1268
1269       return TRUE;
1270      }
1271
1272   return GTK_WIDGET_CLASS (_gtk_file_chooser_entry_parent_class)->key_press_event (widget, event);
1273
1274 }
1275
1276 static gboolean
1277 gtk_file_chooser_entry_focus_out_event (GtkWidget     *widget,
1278                                         GdkEventFocus *event)
1279 {
1280   GtkFileChooserEntry *chooser_entry = GTK_FILE_CHOOSER_ENTRY (widget);
1281
1282   chooser_entry->load_complete_action = LOAD_COMPLETE_NOTHING;
1283
1284   return GTK_WIDGET_CLASS (_gtk_file_chooser_entry_parent_class)->focus_out_event (widget, event);
1285 }
1286
1287 static void
1288 commit_completion_and_refresh (GtkFileChooserEntry *chooser_entry)
1289 {
1290   if (chooser_entry->has_completion)
1291     {
1292       gtk_editable_set_position (GTK_EDITABLE (chooser_entry),
1293                                  gtk_entry_get_text_length (GTK_ENTRY (chooser_entry)));
1294     }
1295
1296   /* Here we ignore the result of refresh_current_folder_and_file_part(); there is nothing we can do with it */
1297   refresh_current_folder_and_file_part (chooser_entry, REFRESH_WHOLE_TEXT);
1298 }
1299
1300 static void
1301 gtk_file_chooser_entry_activate (GtkEntry *entry)
1302 {
1303   GtkFileChooserEntry *chooser_entry = GTK_FILE_CHOOSER_ENTRY (entry);
1304
1305   commit_completion_and_refresh (chooser_entry);
1306   GTK_ENTRY_CLASS (_gtk_file_chooser_entry_parent_class)->activate (entry);
1307 }
1308
1309 static void
1310 discard_completion_store (GtkFileChooserEntry *chooser_entry)
1311 {
1312   if (!chooser_entry->completion_store)
1313     return;
1314
1315   gtk_entry_completion_set_model (gtk_entry_get_completion (GTK_ENTRY (chooser_entry)), NULL);
1316   g_object_unref (chooser_entry->completion_store);
1317   chooser_entry->completion_store = NULL;
1318 }
1319
1320 /* Fills the completion store from the contents of the current folder */
1321 static void
1322 populate_completion_store (GtkFileChooserEntry *chooser_entry)
1323 {
1324   GSList *files;
1325   GSList *tmp_list;
1326
1327   discard_completion_store (chooser_entry);
1328
1329   files = _gtk_folder_list_children (chooser_entry->current_folder);
1330
1331   chooser_entry->completion_store = gtk_list_store_new (N_COLUMNS,
1332                                                         G_TYPE_STRING,
1333                                                         G_TYPE_FILE);
1334
1335   for (tmp_list = files; tmp_list; tmp_list = tmp_list->next)
1336     {
1337       GFileInfo *info;
1338       GFile *file;
1339
1340       file = tmp_list->data;
1341
1342       info = _gtk_folder_get_info (chooser_entry->current_folder, file);
1343
1344       if (info)
1345         {
1346           gchar *display_name = g_strdup (g_file_info_get_display_name (info));
1347           GtkTreeIter iter;
1348           gboolean dummy;
1349
1350           display_name = maybe_append_separator_to_file (chooser_entry, file, display_name, &dummy);
1351
1352           gtk_list_store_append (chooser_entry->completion_store, &iter);
1353           gtk_list_store_set (chooser_entry->completion_store, &iter,
1354                               DISPLAY_NAME_COLUMN, display_name,
1355                               FILE_COLUMN, file,
1356                               -1);
1357
1358           g_object_unref (info);
1359           g_free (display_name);
1360         }
1361     }
1362
1363   g_slist_foreach (files, (GFunc) g_object_unref, NULL);
1364   g_slist_free (files);
1365
1366   gtk_tree_sortable_set_sort_column_id (GTK_TREE_SORTABLE (chooser_entry->completion_store),
1367                                         DISPLAY_NAME_COLUMN, GTK_SORT_ASCENDING);
1368
1369   gtk_entry_completion_set_model (gtk_entry_get_completion (GTK_ENTRY (chooser_entry)),
1370                                   GTK_TREE_MODEL (chooser_entry->completion_store));
1371 }
1372
1373 /* When we finish loading the current folder, this function should get called to
1374  * perform the deferred autocompletion or explicit completion.
1375  */
1376 static void
1377 perform_load_complete_action (GtkFileChooserEntry *chooser_entry)
1378 {
1379   switch (chooser_entry->load_complete_action)
1380     {
1381     case LOAD_COMPLETE_NOTHING:
1382       break;
1383
1384     case LOAD_COMPLETE_AUTOCOMPLETE:
1385       autocomplete (chooser_entry);
1386       break;
1387
1388     case LOAD_COMPLETE_EXPLICIT_COMPLETION:
1389       explicitly_complete (chooser_entry);
1390       break;
1391
1392     default:
1393       g_assert_not_reached ();
1394     }
1395
1396   chooser_entry->load_complete_action = LOAD_COMPLETE_NOTHING;
1397 }
1398
1399 static void
1400 finish_folder_load (GtkFileChooserEntry *chooser_entry)
1401 {
1402   populate_completion_store (chooser_entry);
1403   perform_load_complete_action (chooser_entry);
1404
1405   gtk_widget_set_tooltip_text (GTK_WIDGET (chooser_entry), NULL);
1406 }
1407
1408 /* Callback when the current folder finishes loading */
1409 static void
1410 finished_loading_cb (GtkFolder *folder,
1411                      gpointer   data)
1412 {
1413   GtkFileChooserEntry *chooser_entry = GTK_FILE_CHOOSER_ENTRY (data);
1414
1415   finish_folder_load (chooser_entry);
1416 }
1417
1418 /* Callback when the current folder's handle gets obtained (not necessarily loaded completely) */
1419 static void
1420 load_directory_get_folder_callback (GCancellable  *cancellable,
1421                                     GtkFolder     *folder,
1422                                     const GError  *error,
1423                                     gpointer       data)
1424 {
1425   gboolean cancelled = g_cancellable_is_cancelled (cancellable);
1426   GtkFileChooserEntry *chooser_entry = data;
1427
1428   if (cancellable != chooser_entry->load_folder_cancellable)
1429     goto out;
1430
1431   chooser_entry->load_folder_cancellable = NULL;
1432
1433   if (error)
1434     {
1435       LoadCompleteAction old_load_complete_action;
1436
1437       old_load_complete_action = chooser_entry->load_complete_action;
1438
1439       discard_completion_store (chooser_entry);
1440       clear_completions (chooser_entry);
1441
1442       if (old_load_complete_action == LOAD_COMPLETE_EXPLICIT_COMPLETION)
1443         {
1444           /* Since this came from explicit user action (Tab completion), we'll present errors visually */
1445
1446           beep (chooser_entry);
1447           pop_up_completion_feedback (chooser_entry, error->message);
1448         }
1449
1450       discard_current_folder (chooser_entry);
1451     }
1452
1453   if (cancelled || error)
1454     goto out;
1455
1456   g_assert (folder != NULL);
1457   chooser_entry->current_folder = g_object_ref (folder);
1458
1459   discard_completion_store (chooser_entry);
1460
1461   if (_gtk_folder_is_finished_loading (chooser_entry->current_folder))
1462     finish_folder_load (chooser_entry);
1463   else
1464     g_signal_connect (chooser_entry->current_folder, "finished-loading",
1465                       G_CALLBACK (finished_loading_cb), chooser_entry);
1466
1467 out:
1468   g_object_unref (chooser_entry);
1469   g_object_unref (cancellable);
1470 }
1471
1472 static RefreshStatus
1473 start_loading_current_folder (GtkFileChooserEntry *chooser_entry)
1474 {
1475   if (chooser_entry->file_system == NULL)
1476     return REFRESH_OK;
1477
1478   g_assert (chooser_entry->current_folder_file != NULL);
1479   g_assert (chooser_entry->current_folder == NULL);
1480   g_assert (chooser_entry->load_folder_cancellable == NULL);
1481
1482   if (chooser_entry->local_only
1483       && !g_file_is_native (chooser_entry->current_folder_file))
1484     {
1485       g_object_unref (chooser_entry->current_folder_file);
1486       chooser_entry->current_folder_file = NULL;
1487
1488       return REFRESH_NOT_LOCAL;
1489     }
1490
1491   chooser_entry->load_folder_cancellable =
1492     _gtk_file_system_get_folder (chooser_entry->file_system,
1493                                  chooser_entry->current_folder_file,
1494                                 "standard::name,standard::display-name,standard::type",
1495                                  load_directory_get_folder_callback,
1496                                  g_object_ref (chooser_entry));
1497
1498   return REFRESH_OK;
1499 }
1500
1501 static RefreshStatus
1502 reload_current_folder (GtkFileChooserEntry *chooser_entry,
1503                        GFile               *folder_file,
1504                        gboolean             force_reload)
1505 {
1506   gboolean reload = FALSE;
1507
1508   g_assert (folder_file != NULL);
1509
1510   if (chooser_entry->current_folder_file)
1511     {
1512       if ((!(g_file_equal (folder_file, chooser_entry->current_folder_file)
1513              && chooser_entry->load_folder_cancellable))
1514           || force_reload)
1515         {
1516           reload = TRUE;
1517
1518           discard_current_folder (chooser_entry);
1519           discard_loading_and_current_folder_file (chooser_entry);
1520
1521           chooser_entry->current_folder_file = g_object_ref (folder_file);
1522         }
1523     }
1524   else
1525     {
1526       chooser_entry->current_folder_file = g_object_ref (folder_file);
1527       reload = TRUE;
1528     }
1529
1530   if (reload)
1531     return start_loading_current_folder (chooser_entry);
1532   else
1533     return REFRESH_OK;
1534 }
1535
1536 static RefreshStatus
1537 refresh_current_folder_and_file_part (GtkFileChooserEntry *chooser_entry,
1538                                       RefreshMode          refresh_mode)
1539 {
1540   GtkEditable *editable;
1541   gint end_pos;
1542   gchar *text;
1543   GFile *folder_file;
1544   gchar *file_part;
1545   gsize total_len, file_part_len;
1546   gint file_part_pos;
1547   GError *error;
1548   RefreshStatus result;
1549
1550   editable = GTK_EDITABLE (chooser_entry);
1551
1552   switch (refresh_mode)
1553     {
1554     case REFRESH_UP_TO_CURSOR_POSITION:
1555       end_pos = gtk_editable_get_position (editable);
1556       break;
1557
1558     case REFRESH_WHOLE_TEXT:
1559       end_pos = gtk_entry_get_text_length (GTK_ENTRY (chooser_entry));
1560       break;
1561
1562     default:
1563       g_assert_not_reached ();
1564       return REFRESH_INVALID_INPUT;
1565     }
1566
1567   text = gtk_editable_get_chars (editable, 0, end_pos);
1568
1569   error = NULL;
1570   if (!chooser_entry->file_system ||
1571       !chooser_entry->base_folder ||
1572       !_gtk_file_system_parse (chooser_entry->file_system,
1573                                chooser_entry->base_folder, text,
1574                                &folder_file, &file_part, &error))
1575     {
1576       if (g_error_matches (error, GTK_FILE_CHOOSER_ERROR, GTK_FILE_CHOOSER_ERROR_INCOMPLETE_HOSTNAME))
1577         {
1578           folder_file = NULL;
1579           result = REFRESH_INCOMPLETE_HOSTNAME;
1580         }
1581       else
1582         {
1583           folder_file = (chooser_entry->base_folder) ? g_object_ref (chooser_entry->base_folder) : NULL;
1584
1585           if (g_error_matches (error, GTK_FILE_CHOOSER_ERROR, GTK_FILE_CHOOSER_ERROR_NONEXISTENT))
1586             result = REFRESH_NONEXISTENT;
1587           else
1588             result = REFRESH_INVALID_INPUT;
1589         }
1590
1591       if (error)
1592         g_error_free (error);
1593
1594       file_part = g_strdup ("");
1595       file_part_pos = -1;
1596     }
1597   else
1598     {
1599       g_assert (folder_file != NULL);
1600
1601       file_part_len = strlen (file_part);
1602       total_len = strlen (text);
1603       if (total_len > file_part_len)
1604         file_part_pos = g_utf8_strlen (text, total_len - file_part_len);
1605       else
1606         file_part_pos = 0;
1607
1608       result = REFRESH_OK;
1609     }
1610
1611   g_free (text);
1612
1613   g_free (chooser_entry->file_part);
1614
1615   chooser_entry->file_part = file_part;
1616   chooser_entry->file_part_pos = file_part_pos;
1617
1618   if (result == REFRESH_OK)
1619     {
1620       result = reload_current_folder (chooser_entry, folder_file, file_part_pos == -1);
1621     }
1622   else
1623     {
1624       discard_current_folder (chooser_entry);
1625       discard_loading_and_current_folder_file (chooser_entry);
1626     }
1627
1628   if (folder_file)
1629     g_object_unref (folder_file);
1630
1631   g_assert (/* we are OK and we have a current folder file and (loading process or folder handle)... */
1632             ((result == REFRESH_OK)
1633              && (chooser_entry->current_folder_file != NULL)
1634              && (((chooser_entry->load_folder_cancellable != NULL) && (chooser_entry->current_folder == NULL))
1635                  || ((chooser_entry->load_folder_cancellable == NULL) && (chooser_entry->current_folder != NULL))))
1636             /* ... OR we have an error, and we don't have a current folder file nor a loading process nor a folder handle */
1637             || ((result != REFRESH_OK)
1638                 && (chooser_entry->current_folder_file == NULL)
1639                 && (chooser_entry->load_folder_cancellable == NULL)
1640                 && (chooser_entry->current_folder == NULL)));
1641
1642   return result;
1643 }
1644
1645 static void
1646 autocomplete (GtkFileChooserEntry *chooser_entry)
1647 {
1648   if (!(chooser_entry->current_folder != NULL
1649         && _gtk_folder_is_finished_loading (chooser_entry->current_folder)
1650         && gtk_editable_get_position (GTK_EDITABLE (chooser_entry)) == gtk_entry_get_text_length (GTK_ENTRY (chooser_entry))))
1651     return;
1652
1653   append_common_prefix (chooser_entry, TRUE, FALSE);
1654 }
1655
1656 static void
1657 start_autocompletion (GtkFileChooserEntry *chooser_entry)
1658 {
1659   RefreshStatus status;
1660
1661   status = refresh_current_folder_and_file_part (chooser_entry, REFRESH_UP_TO_CURSOR_POSITION);
1662
1663   switch (status)
1664     {
1665     case REFRESH_OK:
1666       g_assert (chooser_entry->current_folder_file != NULL);
1667
1668       if (chooser_entry->current_folder && _gtk_folder_is_finished_loading (chooser_entry->current_folder))
1669         autocomplete (chooser_entry);
1670       else
1671         chooser_entry->load_complete_action = LOAD_COMPLETE_AUTOCOMPLETE;
1672
1673       break;
1674
1675     case REFRESH_INVALID_INPUT:
1676     case REFRESH_INCOMPLETE_HOSTNAME:
1677     case REFRESH_NONEXISTENT:
1678     case REFRESH_NOT_LOCAL:
1679       /* We don't beep or anything, since this is autocompletion - the user
1680        * didn't request any action explicitly.
1681        */
1682       break;
1683
1684     default:
1685       g_assert_not_reached ();
1686     }
1687 }
1688
1689 static gboolean
1690 start_autocompletion_idle_handler (gpointer data)
1691 {
1692   GtkFileChooserEntry *chooser_entry = GTK_FILE_CHOOSER_ENTRY (data);
1693
1694   start_autocompletion (chooser_entry);
1695
1696   chooser_entry->start_autocompletion_idle_id = 0;
1697
1698   return FALSE;
1699 }
1700
1701 static void
1702 install_start_autocompletion_idle (GtkFileChooserEntry *chooser_entry)
1703 {
1704   if (chooser_entry->start_autocompletion_idle_id != 0)
1705     return;
1706
1707   chooser_entry->start_autocompletion_idle_id = gdk_threads_add_idle (start_autocompletion_idle_handler, chooser_entry);
1708 }
1709
1710 #ifdef G_OS_WIN32
1711 static gint
1712 insert_text_callback (GtkFileChooserEntry *chooser_entry,
1713                       const gchar         *new_text,
1714                       gint                 new_text_length,
1715                       gint                *position,
1716                       gpointer             user_data)
1717 {
1718   const gchar *colon = memchr (new_text, ':', new_text_length);
1719   gint i;
1720
1721   /* Disallow these characters altogether */
1722   for (i = 0; i < new_text_length; i++)
1723     {
1724       if (new_text[i] == '<' ||
1725           new_text[i] == '>' ||
1726           new_text[i] == '"' ||
1727           new_text[i] == '|' ||
1728           new_text[i] == '*' ||
1729           new_text[i] == '?')
1730         break;
1731     }
1732
1733   if (i < new_text_length ||
1734       /* Disallow entering text that would cause a colon to be anywhere except
1735        * after a drive letter.
1736        */
1737       (colon != NULL &&
1738        *position + (colon - new_text) != 1) ||
1739       (new_text_length > 0 &&
1740        *position <= 1 &&
1741        gtk_entry_get_text_length (GTK_ENTRY (chooser_entry)) >= 2 &&
1742        gtk_entry_get_text (GTK_ENTRY (chooser_entry))[1] == ':'))
1743     {
1744       gtk_widget_error_bell (GTK_WIDGET (chooser_entry));
1745       g_signal_stop_emission_by_name (chooser_entry, "insert_text");
1746       return FALSE;
1747     }
1748
1749   return TRUE;
1750 }
1751
1752 static void
1753 delete_text_callback (GtkFileChooserEntry *chooser_entry,
1754                       gint                 start_pos,
1755                       gint                 end_pos,
1756                       gpointer             user_data)
1757 {
1758   /* If deleting a drive letter, delete the colon, too */
1759   if (start_pos == 0 && end_pos == 1 &&
1760       gtk_entry_get_text_length (GTK_ENTRY (chooser_entry)) >= 2 &&
1761       gtk_entry_get_text (GTK_ENTRY (chooser_entry))[1] == ':')
1762     {
1763       g_signal_handlers_block_by_func (chooser_entry,
1764                                        G_CALLBACK (delete_text_callback),
1765                                        user_data);
1766       gtk_editable_delete_text (GTK_EDITABLE (chooser_entry), 0, 1);
1767       g_signal_handlers_unblock_by_func (chooser_entry,
1768                                          G_CALLBACK (delete_text_callback),
1769                                          user_data);
1770     }
1771 }
1772 #endif
1773
1774 /**
1775  * _gtk_file_chooser_entry_new:
1776  * @eat_tabs: If %FALSE, allow focus navigation with the tab key.
1777  *
1778  * Creates a new #GtkFileChooserEntry object. #GtkFileChooserEntry
1779  * is an internal implementation widget for the GTK+ file chooser
1780  * which is an entry with completion with respect to a
1781  * #GtkFileSystem object.
1782  *
1783  * Return value: the newly created #GtkFileChooserEntry
1784  **/
1785 GtkWidget *
1786 _gtk_file_chooser_entry_new (gboolean eat_tabs)
1787 {
1788   GtkFileChooserEntry *chooser_entry;
1789
1790   chooser_entry = g_object_new (GTK_TYPE_FILE_CHOOSER_ENTRY, NULL);
1791   chooser_entry->eat_tabs = (eat_tabs != FALSE);
1792
1793   return GTK_WIDGET (chooser_entry);
1794 }
1795
1796 /**
1797  * _gtk_file_chooser_entry_set_file_system:
1798  * @chooser_entry: a #GtkFileChooser
1799  * @file_system: an object implementing #GtkFileSystem
1800  *
1801  * Sets the file system for @chooser_entry.
1802  **/
1803 void
1804 _gtk_file_chooser_entry_set_file_system (GtkFileChooserEntry *chooser_entry,
1805                                          GtkFileSystem       *file_system)
1806 {
1807   g_return_if_fail (GTK_IS_FILE_CHOOSER_ENTRY (chooser_entry));
1808   g_return_if_fail (GTK_IS_FILE_SYSTEM (file_system));
1809
1810   if (file_system != chooser_entry->file_system)
1811     {
1812       if (chooser_entry->file_system)
1813         g_object_unref (chooser_entry->file_system);
1814
1815       chooser_entry->file_system = g_object_ref (file_system);
1816     }
1817 }
1818
1819 /**
1820  * _gtk_file_chooser_entry_set_base_folder:
1821  * @chooser_entry: a #GtkFileChooserEntry
1822  * @file: file for a folder in the chooser entries current file system.
1823  *
1824  * Sets the folder with respect to which completions occur.
1825  **/
1826 void
1827 _gtk_file_chooser_entry_set_base_folder (GtkFileChooserEntry *chooser_entry,
1828                                          GFile               *file)
1829 {
1830   if (chooser_entry->base_folder)
1831     g_object_unref (chooser_entry->base_folder);
1832
1833   chooser_entry->base_folder = file;
1834
1835   if (chooser_entry->base_folder)
1836     g_object_ref (chooser_entry->base_folder);
1837
1838   clear_completions (chooser_entry);
1839   _gtk_file_chooser_entry_select_filename (chooser_entry);
1840 }
1841
1842 /**
1843  * _gtk_file_chooser_entry_get_current_folder:
1844  * @chooser_entry: a #GtkFileChooserEntry
1845  *
1846  * Gets the current folder for the #GtkFileChooserEntry. If the
1847  * user has only entered a filename, this will be in the base folder
1848  * (see _gtk_file_chooser_entry_set_base_folder()), but if the
1849  * user has entered a relative or absolute path, then it will
1850  * be different.  If the user has entered unparsable text, or text which
1851  * the entry cannot handle, this will return %NULL.
1852  *
1853  * Return value: the file for the current folder - this value is owned by the
1854  *  chooser entry and must not be modified or freed.
1855  **/
1856 GFile *
1857 _gtk_file_chooser_entry_get_current_folder (GtkFileChooserEntry *chooser_entry)
1858 {
1859   commit_completion_and_refresh (chooser_entry);
1860   return chooser_entry->current_folder_file;
1861 }
1862
1863 /**
1864  * _gtk_file_chooser_entry_get_file_part:
1865  * @chooser_entry: a #GtkFileChooserEntry
1866  *
1867  * Gets the non-folder portion of whatever the user has entered
1868  * into the file selector. What is returned is a UTF-8 string,
1869  * and if a filename path is needed, g_file_get_child_for_display_name()
1870  * must be used
1871   *
1872  * Return value: the entered filename - this value is owned by the
1873  *  chooser entry and must not be modified or freed.
1874  **/
1875 const gchar *
1876 _gtk_file_chooser_entry_get_file_part (GtkFileChooserEntry *chooser_entry)
1877 {
1878   commit_completion_and_refresh (chooser_entry);
1879   return chooser_entry->file_part;
1880 }
1881
1882 /**
1883  * _gtk_file_chooser_entry_set_file_part:
1884  * @chooser_entry: a #GtkFileChooserEntry
1885  * @file_part: text to display in the entry, in UTF-8
1886  *
1887  * Sets the current text shown in the file chooser entry.
1888  **/
1889 void
1890 _gtk_file_chooser_entry_set_file_part (GtkFileChooserEntry *chooser_entry,
1891                                        const gchar         *file_part)
1892 {
1893   g_return_if_fail (GTK_IS_FILE_CHOOSER_ENTRY (chooser_entry));
1894
1895   chooser_entry->in_change = TRUE;
1896   clear_completions (chooser_entry);
1897   gtk_entry_set_text (GTK_ENTRY (chooser_entry), file_part);
1898   chooser_entry->in_change = FALSE;
1899 }
1900
1901
1902 /**
1903  * _gtk_file_chooser_entry_set_action:
1904  * @chooser_entry: a #GtkFileChooserEntry
1905  * @action: the action which is performed by the file selector using this entry
1906  *
1907  * Sets action which is performed by the file selector using this entry.
1908  * The #GtkFileChooserEntry will use different completion strategies for
1909  * different actions.
1910  **/
1911 void
1912 _gtk_file_chooser_entry_set_action (GtkFileChooserEntry *chooser_entry,
1913                                     GtkFileChooserAction action)
1914 {
1915   g_return_if_fail (GTK_IS_FILE_CHOOSER_ENTRY (chooser_entry));
1916
1917   if (chooser_entry->action != action)
1918     {
1919       GtkEntryCompletion *comp;
1920
1921       chooser_entry->action = action;
1922
1923       comp = gtk_entry_get_completion (GTK_ENTRY (chooser_entry));
1924
1925       /* FIXME: do we need to actually set the following? */
1926
1927       switch (action)
1928         {
1929         case GTK_FILE_CHOOSER_ACTION_OPEN:
1930         case GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER:
1931           gtk_entry_completion_set_popup_single_match (comp, FALSE);
1932           break;
1933         case GTK_FILE_CHOOSER_ACTION_SAVE:
1934         case GTK_FILE_CHOOSER_ACTION_CREATE_FOLDER:
1935           gtk_entry_completion_set_popup_single_match (comp, TRUE);
1936           break;
1937         }
1938     }
1939 }
1940
1941
1942 /**
1943  * _gtk_file_chooser_entry_get_action:
1944  * @chooser_entry: a #GtkFileChooserEntry
1945  *
1946  * Gets the action for this entry.
1947  *
1948  * Returns: the action
1949  **/
1950 GtkFileChooserAction
1951 _gtk_file_chooser_entry_get_action (GtkFileChooserEntry *chooser_entry)
1952 {
1953   g_return_val_if_fail (GTK_IS_FILE_CHOOSER_ENTRY (chooser_entry),
1954                         GTK_FILE_CHOOSER_ACTION_OPEN);
1955
1956   return chooser_entry->action;
1957 }
1958
1959 gboolean
1960 _gtk_file_chooser_entry_get_is_folder (GtkFileChooserEntry *chooser_entry,
1961                                        GFile               *file)
1962 {
1963   gboolean retval = FALSE;
1964
1965   if (chooser_entry->current_folder)
1966     {
1967       GFileInfo *file_info;
1968
1969       file_info = _gtk_folder_get_info (chooser_entry->current_folder, file);
1970
1971       if (file_info)
1972         {
1973           retval = _gtk_file_info_consider_as_directory (file_info);
1974           g_object_unref (file_info);
1975         }
1976     }
1977
1978   return retval;
1979 }
1980
1981
1982 /*
1983  * _gtk_file_chooser_entry_select_filename:
1984  * @chooser_entry: a #GtkFileChooserEntry
1985  *
1986  * Selects the filename (without the extension) for user edition.
1987  */
1988 void
1989 _gtk_file_chooser_entry_select_filename (GtkFileChooserEntry *chooser_entry)
1990 {
1991   const gchar *str, *ext;
1992   glong len = -1;
1993
1994   if (chooser_entry->action == GTK_FILE_CHOOSER_ACTION_SAVE)
1995     {
1996       str = gtk_entry_get_text (GTK_ENTRY (chooser_entry));
1997       ext = g_strrstr (str, ".");
1998
1999       if (ext)
2000        len = g_utf8_pointer_to_offset (str, ext);
2001     }
2002
2003   gtk_editable_select_region (GTK_EDITABLE (chooser_entry), 0, (gint) len);
2004 }
2005
2006 void
2007 _gtk_file_chooser_entry_set_local_only (GtkFileChooserEntry *chooser_entry,
2008                                         gboolean             local_only)
2009 {
2010   chooser_entry->local_only = local_only;
2011   clear_completions (chooser_entry);
2012 }
2013
2014 gboolean
2015 _gtk_file_chooser_entry_get_local_only (GtkFileChooserEntry *chooser_entry)
2016 {
2017   return chooser_entry->local_only;
2018 }