src/foldersel.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2005 Hiroyuki Yamamoto
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program 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
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18  */
  19
  20 #include "defs.h"
  21
  22 #include <glib.h>
  23 #include <glib/gi18n.h>
  24 #include <gdk/gdkkeysyms.h>
  25 #include <gtk/gtkmain.h>
  26 #include <gtk/gtkwidget.h>
  27 #include <gtk/gtktreestore.h>
  28 #include <gtk/gtktreeview.h>
  29 #include <gtk/gtkwindow.h>
  30 #include <gtk/gtkvbox.h>
  31 #include <gtk/gtkscrolledwindow.h>
  32 #include <gtk/gtkentry.h>
  33 #include <gtk/gtkhbbox.h>
  34 #include <gtk/gtksignal.h>
  35 #include <stdio.h>
  36 #include <unistd.h>
  37 #include <string.h>
  38 #include <sys/stat.h>
  39 #include <sys/types.h>
  40 #include <fcntl.h>
  41 #include <errno.h>
  42
  43 #include "main.h"
  44 #include "utils.h"
  45 #include "gtkutils.h"
  46 #include "stock_pixmap.h"
  47 #include "foldersel.h"
  48 #include "alertpanel.h"
  49 #include "manage_window.h"
  50 #include "folderview.h"
  51 #include "inputdialog.h"
  52 #include "folder.h"
  53
  54 enum {
  55         FOLDERSEL_FOLDERNAME,
  56         FOLDERSEL_FOLDERITEM,
  57         FOLDERSEL_PIXBUF,
  58         FOLDERSEL_PIXBUF_OPEN,
  59         FOLDERSEL_EXPANDER,
  60         N_FOLDERSEL_COLUMNS
  61 };
  62
  63 typedef struct _FolderItemSearch        FolderItemSearch;
  64
  65 struct _FolderItemSearch
  66 {
  67         FolderItem *item;
  68         GtkTreePath *path;
  69         GtkTreeIter iter;
  70 };
  71
  72 static GdkPixbuf *folder_pixbuf;
  73 static GdkPixbuf *folderopen_pixbuf;
  74 static GdkPixbuf *foldernoselect_pixbuf;
  75
  76 static GtkWidget *window;
  77 static GtkWidget *treeview;
  78 static GtkWidget *entry;
  79 static GtkWidget *ok_button;
  80 static GtkWidget *cancel_button;
  81 static GtkWidget *new_button;
  82
  83 static FolderItem *folder_item;
  84 static FolderItem *selected_item;
  85
  86 static GtkTreeStore *tree_store;
  87
  88 static gboolean cancelled;
  89 static gboolean finished;
  90
  91 static void foldersel_create            (void);
  92 static void foldersel_init              (void);
  93
  94 static void foldersel_append_item       (GtkTreeStore   *store,
  95                                          FolderItem     *item,
  96                                          GtkTreeIter    *iter,
  97                                          GtkTreeIter    *parent);
  98
  99 static void foldersel_set_tree          (Folder                 *cur_folder,
 100                                          FolderSelectionType     type);
 101
 102 static gboolean foldersel_selected      (GtkTreeSelection *selection,
 103                                          GtkTreeModel     *model,
 104                                          GtkTreePath      *path,
 105                                          gboolean          currently_selected,
 106                                          gpointer          data);
 107
 108 static void foldersel_ok                (GtkButton      *button,
 109                                          gpointer        data);
 110 static void foldersel_cancel            (GtkButton      *button,
 111                                          gpointer        data);
 112 static void foldersel_new_folder        (GtkButton      *button,
 113                                          gpointer        data);
 114
 115 static void foldersel_entry_activated   (GtkEntry       *entry,
 116                                          gpointer        data);
 117
 118 static void foldersel_tree_activated    (GtkTreeView            *treeview,
 119                                          GtkTreePath            *path,
 120                                          GtkTreeViewColumn      *column,
 121                                          gpointer                data);
 122
 123 static gint delete_event                (GtkWidget      *widget,
 124                                          GdkEventAny    *event,
 125                                          gpointer        data);
 126 static gboolean key_pressed             (GtkWidget      *widget,
 127                                          GdkEventKey    *event,
 128                                          gpointer        data);
 129
 130 static gint foldersel_folder_name_compare       (GtkTreeModel   *model,
 131                                                  GtkTreeIter    *a,
 132                                                  GtkTreeIter    *b,
 133                                                  gpointer        context);
 134
 135 static gboolean tree_view_folder_item_func      (GtkTreeModel     *model,
 136                                                  GtkTreePath      *path,
 137                                                  GtkTreeIter      *iter,
 138                                                  FolderItemSearch *data);
 139
 140 FolderItem *foldersel_folder_sel(Folder *cur_folder, FolderSelectionType type,
 141                                  const gchar *default_folder)
 142 {
 143         selected_item = NULL;
 144
 145         if (!window) {
 146                 foldersel_create();
 147                 foldersel_init();
 148         }
 149
 150         foldersel_set_tree(cur_folder, type);
 151
 152         /* select current */
 153         if (folder_item) {
 154                 FolderItemSearch fis;
 155
 156                 fis.item = folder_item;
 157                 fis.path = NULL;
 158
 159                 /* find matching model entry */
 160                 gtk_tree_model_foreach
 161                         (GTK_TREE_MODEL(tree_store),
 162                          (GtkTreeModelForeachFunc)tree_view_folder_item_func,
 163                          &fis);
 164
 165                 if (fis.path) {
 166                         GtkTreeSelection *selection;
 167
 168                         selection = gtk_tree_view_get_selection
 169                                 (GTK_TREE_VIEW(treeview));
 170                         gtk_tree_selection_select_iter(selection, &fis.iter);
 171                         gtk_tree_view_set_cursor(GTK_TREE_VIEW(treeview),
 172                                                  fis.path, NULL, FALSE);
 173                         gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(treeview),
 174                                                      fis.path,
 175                                                      NULL, TRUE, 0.5, 0.0);
 176                         gtk_tree_path_free(fis.path);
 177                 } else
 178                         gtk_tree_view_scroll_to_point
 179                                 (GTK_TREE_VIEW(treeview), 0, 0);
 180         } else
 181                 gtk_tree_view_scroll_to_point(GTK_TREE_VIEW(treeview), 0, 0);
 182
 183         gtk_widget_grab_focus(ok_button);
 184         gtk_widget_grab_focus(treeview);
 185
 186         gtk_widget_show(window);
 187         manage_window_set_transient(GTK_WINDOW(window));
 188
 189         cancelled = finished = FALSE;
 190
 191         while (finished == FALSE)
 192                 gtk_main_iteration();
 193
 194         gtk_widget_hide(window);
 195         gtk_entry_set_text(GTK_ENTRY(entry), "");
 196         gtk_tree_store_clear(tree_store);
 197
 198         if (!cancelled &&
 199             selected_item && selected_item->path && !selected_item->no_select) {
 200                 folder_item = selected_item;
 201                 return folder_item;
 202         } else
 203                 return NULL;
 204 }
 205
 206 static void foldersel_create(void)
 207 {
 208         GtkWidget *vbox;
 209         GtkWidget *scrolledwin;
 210         GtkWidget *confirm_area;
 211         GtkTreeViewColumn *column;
 212         GtkCellRenderer *renderer;
 213         GtkTreeSelection *selection;
 214
 215         window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 216         gtk_window_set_title(GTK_WINDOW(window), _("Select folder"));
 217         gtk_container_set_border_width(GTK_CONTAINER(window), 4);
 218         gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);
 219         gtk_window_set_modal(GTK_WINDOW(window), TRUE);
 220         gtk_window_set_policy(GTK_WINDOW(window), FALSE, TRUE, FALSE);
 221         gtk_window_set_wmclass
 222                 (GTK_WINDOW(window), "folder_selection", "Sylpheed");
 223         gtk_widget_realize(window);
 224         g_signal_connect(G_OBJECT(window), "delete_event",
 225                          G_CALLBACK(delete_event), NULL);
 226         g_signal_connect(G_OBJECT(window), "key_press_event",
 227                          G_CALLBACK(key_pressed), NULL);
 228         MANAGE_WINDOW_SIGNALS_CONNECT(window);
 229
 230         vbox = gtk_vbox_new(FALSE, 4);
 231         gtk_container_add(GTK_CONTAINER(window), vbox);
 232
 233         scrolledwin = gtk_scrolled_window_new(NULL, NULL);
 234         gtk_widget_set_size_request(scrolledwin, 300, 360);
 235         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolledwin),
 236                                        GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
 237         gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrolledwin),
 238                                             GTK_SHADOW_IN);
 239         gtk_box_pack_start(GTK_BOX(vbox), scrolledwin, TRUE, TRUE, 0);
 240
 241         tree_store = gtk_tree_store_new(N_FOLDERSEL_COLUMNS,
 242                                         G_TYPE_STRING,
 243                                         G_TYPE_POINTER,
 244                                         GDK_TYPE_PIXBUF,
 245                                         GDK_TYPE_PIXBUF,
 246                                         G_TYPE_BOOLEAN);
 247         gtk_tree_sortable_set_sort_func(GTK_TREE_SORTABLE(tree_store),
 248                                         FOLDERSEL_FOLDERNAME,
 249                                         foldersel_folder_name_compare,
 250                                         NULL, NULL);
 251
 252         treeview = gtk_tree_view_new_with_model(GTK_TREE_MODEL(tree_store));
 253         g_object_unref(G_OBJECT(tree_store));
 254         gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(treeview), FALSE);
 255         gtk_tree_view_set_rules_hint(GTK_TREE_VIEW(treeview), TRUE);
 256         gtk_tree_view_set_search_column(GTK_TREE_VIEW(treeview),
 257                                         FOLDERSEL_FOLDERNAME);
 258
 259         selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(treeview));
 260         gtk_tree_selection_set_mode(selection, GTK_SELECTION_BROWSE);
 261         gtk_tree_selection_set_select_function(selection, foldersel_selected,
 262                                                NULL, NULL);
 263
 264         g_signal_connect(G_OBJECT(treeview), "row-activated",
 265                          G_CALLBACK(foldersel_tree_activated), NULL);
 266
 267         gtk_container_add(GTK_CONTAINER(scrolledwin), treeview);
 268
 269         column = gtk_tree_view_column_new();
 270         gtk_tree_view_column_set_spacing(column, 2);
 271         renderer = gtk_cell_renderer_pixbuf_new();
 272         gtk_tree_view_column_pack_start(column, renderer, FALSE);
 273         gtk_tree_view_column_set_attributes
 274                 (column, renderer,
 275                  "is-expander", FOLDERSEL_EXPANDER,
 276                  "pixbuf", FOLDERSEL_PIXBUF,
 277                  "pixbuf-expander-open", FOLDERSEL_PIXBUF_OPEN,
 278                  "pixbuf-expander-closed", FOLDERSEL_PIXBUF,
 279                  NULL);
 280
 281         /* create text renderer */
 282         renderer = gtk_cell_renderer_text_new();
 283         gtk_tree_view_column_pack_start(column, renderer, TRUE);
 284         gtk_tree_view_column_set_attributes(column, renderer,
 285                                             "text", FOLDERSEL_FOLDERNAME,
 286                                             NULL);
 287         gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
 288
 289         gtk_tree_view_append_column(GTK_TREE_VIEW(treeview), column);
 290
 291         entry = gtk_entry_new();
 292         gtk_entry_set_editable(GTK_ENTRY(entry), FALSE);
 293         gtk_box_pack_start(GTK_BOX(vbox), entry, FALSE, FALSE, 0);
 294         g_signal_connect(G_OBJECT(entry), "activate",
 295                          G_CALLBACK(foldersel_entry_activated), NULL);
 296
 297         gtkut_stock_button_set_create(&confirm_area,
 298                                       &ok_button,     GTK_STOCK_OK,
 299                                       &cancel_button, GTK_STOCK_CANCEL,
 300                                       &new_button,    GTK_STOCK_NEW);
 301
 302         gtk_box_pack_end(GTK_BOX(vbox), confirm_area, FALSE, FALSE, 0);
 303         gtk_widget_grab_default(ok_button);
 304
 305         g_signal_connect(G_OBJECT(ok_button), "clicked",
 306                          G_CALLBACK(foldersel_ok), NULL);
 307         g_signal_connect(G_OBJECT(cancel_button), "clicked",
 308                          G_CALLBACK(foldersel_cancel), NULL);
 309         g_signal_connect(G_OBJECT(new_button), "clicked",
 310                          G_CALLBACK(foldersel_new_folder), NULL);
 311
 312         gtk_widget_show_all(vbox);
 313 }
 314
 315 static void foldersel_init(void)
 316 {
 317         stock_pixbuf_gdk(treeview, STOCK_PIXMAP_DIR_CLOSE,
 318                          &folder_pixbuf);
 319         stock_pixbuf_gdk(treeview, STOCK_PIXMAP_DIR_OPEN,
 320                          &folderopen_pixbuf);
 321         stock_pixbuf_gdk(treeview, STOCK_PIXMAP_DIR_NOSELECT,
 322                          &foldernoselect_pixbuf);
 323 }
 324
 325 static void foldersel_append_item(GtkTreeStore *store, FolderItem *item,
 326                                   GtkTreeIter *iter, GtkTreeIter *parent)
 327 {
 328         gchar *name, *tmpname;
 329         GdkPixbuf *pixbuf, *pixbuf_open;
 330
 331         name = tmpname = folder_item_get_name(item);
 332
 333         if (item->stype != F_NORMAL && FOLDER_IS_LOCAL(item->folder)) {
 334                 switch (item->stype) {
 335                 case F_INBOX:
 336                         if (!strcmp2(item->name, INBOX_DIR))
 337                                 name = _("Inbox");
 338                         break;
 339                 case F_OUTBOX:
 340                         if (!strcmp2(item->name, OUTBOX_DIR))
 341                                 name = _("Sent");
 342                         break;
 343                 case F_QUEUE:
 344                         if (!strcmp2(item->name, QUEUE_DIR))
 345                                 name = _("Queue");
 346                         break;
 347                 case F_TRASH:
 348                         if (!strcmp2(item->name, TRASH_DIR))
 349                                 name = _("Trash");
 350                         break;
 351                 case F_DRAFT:
 352                         if (!strcmp2(item->name, DRAFT_DIR))
 353                                 name = _("Drafts");
 354                         break;
 355                 default:
 356                         break;
 357                 }
 358         }
 359
 360         /* CLAWS: already adds the UI string to the folder name */
 361 #ifndef CLAWS
 362         if (!item->parent) {
 363                 switch (FOLDER_TYPE(item->folder)) {
 364                 case F_MH:
 365                         Xstrcat_a(name, name, " (MH)", ); break;
 366                 case F_IMAP:
 367                         Xstrcat_a(name, name, " (IMAP4)", ); break;
 368                 case F_NEWS:
 369                         Xstrcat_a(name, name, " (News)", ); break;
 370                 default:
 371                         break;
 372                 }
 373         }
 374 #endif
 375
 376         gtk_tree_store_append(store, iter, parent);
 377
 378         pixbuf = item->no_select ? foldernoselect_pixbuf : folder_pixbuf,
 379         pixbuf_open =
 380                 item->no_select ? foldernoselect_pixbuf : folderopen_pixbuf,
 381
 382         /* insert this node */
 383         gtk_tree_store_set(store, iter,
 384                            FOLDERSEL_FOLDERNAME, name,
 385                            FOLDERSEL_FOLDERITEM, item,
 386                            FOLDERSEL_PIXBUF, pixbuf,
 387                            FOLDERSEL_PIXBUF_OPEN, pixbuf_open,
 388                            FOLDERSEL_EXPANDER,
 389                                 item->node->children ? TRUE : FALSE,
 390                            -1);
 391
 392         g_free(tmpname);
 393 }
 394
 395 static void foldersel_insert_gnode_in_store(GtkTreeStore *store, GNode *node,
 396                                             GtkTreeIter *parent)
 397 {
 398         FolderItem *item;
 399         GtkTreeIter child;
 400         GNode *iter;
 401
 402         g_return_if_fail(node != NULL);
 403         g_return_if_fail(node->data != NULL);
 404         g_return_if_fail(store != NULL);
 405
 406         item = FOLDER_ITEM(node->data);
 407         foldersel_append_item(store, item, &child, parent);
 408
 409         /* insert its children (this node as parent) */
 410         for (iter = node->children; iter != NULL; iter = iter->next)
 411                 foldersel_insert_gnode_in_store(store, iter, &child);
 412 }
 413
 414 static void foldersel_set_tree(Folder *cur_folder, FolderSelectionType type)
 415 {
 416         Folder *folder;
 417         GList *list;
 418
 419         for (list = folder_get_list(); list != NULL; list = list->next) {
 420                 folder = FOLDER(list->data);
 421                 g_return_if_fail(folder != NULL);
 422
 423                 if (type != FOLDER_SEL_ALL) {
 424                         if (FOLDER_TYPE(folder) == F_NEWS)
 425                                 continue;
 426                 }
 427
 428                 foldersel_insert_gnode_in_store(tree_store, folder->node, NULL);
 429         }
 430
 431         gtk_tree_sortable_set_sort_column_id(GTK_TREE_SORTABLE(tree_store),
 432                                              FOLDERSEL_FOLDERNAME,
 433                                              GTK_SORT_ASCENDING);
 434
 435         gtk_tree_view_expand_all(GTK_TREE_VIEW(treeview));
 436 }
 437
 438 static gboolean foldersel_selected(GtkTreeSelection *selection,
 439                                    GtkTreeModel *model, GtkTreePath *path,
 440                                    gboolean currently_selected, gpointer data)
 441 {
 442         GtkTreeIter iter;
 443         FolderItem *item = NULL;
 444
 445         if (currently_selected)
 446                 return TRUE;
 447
 448         if (!gtk_tree_model_get_iter(GTK_TREE_MODEL(model), &iter, path))
 449                 return TRUE;
 450
 451         gtk_tree_model_get(GTK_TREE_MODEL(tree_store), &iter,
 452                            FOLDERSEL_FOLDERITEM, &item, -1);
 453
 454         selected_item = item;
 455         if (selected_item && selected_item->path && !selected_item->no_select) {
 456                 gchar *id;
 457                 id = folder_item_get_identifier(selected_item);
 458                 gtk_entry_set_text(GTK_ENTRY(entry), id);
 459                 g_free(id);
 460         } else
 461                 gtk_entry_set_text(GTK_ENTRY(entry), "");
 462
 463         return TRUE;
 464 }
 465
 466 static void foldersel_ok(GtkButton *button, gpointer data)
 467 {
 468         finished = TRUE;
 469 }
 470
 471 static void foldersel_cancel(GtkButton *button, gpointer data)
 472 {
 473         cancelled = TRUE;
 474         finished = TRUE;
 475 }
 476
 477 static void foldersel_new_folder(GtkButton *button, gpointer data)
 478 {
 479         FolderItem *new_item;
 480         gchar *new_folder;
 481         gchar *disp_name;
 482         gchar *p;
 483         GtkTreeIter selected, new_child;
 484         GtkTreePath *selected_p, *new_child_p;
 485         GtkTreeStore *store;
 486         GtkTreeModel *model;
 487         GtkTreeSelection *selection;
 488
 489         if (!selected_item || FOLDER_TYPE(selected_item->folder) == F_NEWS)
 490                 return;
 491
 492         selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(treeview));
 493         if (!gtk_tree_selection_get_selected(selection, &model, &selected))
 494                 return;
 495         store = GTK_TREE_STORE(model);
 496
 497         new_folder = input_dialog(_("New folder"),
 498                                   _("Input the name of new folder:"),
 499                                   _("NewFolder"));
 500         if (!new_folder) return;
 501         AUTORELEASE_STR(new_folder, {g_free(new_folder); return;});
 502
 503         p = strchr(new_folder, G_DIR_SEPARATOR);
 504         if ((p && FOLDER_TYPE(selected_item->folder) != F_IMAP) ||
 505             (p && FOLDER_TYPE(selected_item->folder) == F_IMAP &&
 506              *(p + 1) != '\0')) {
 507                 alertpanel_error(_("`%c' can't be included in folder name."),
 508                                 G_DIR_SEPARATOR);
 509                 return;
 510         }
 511
 512         disp_name = trim_string(new_folder, 32);
 513         AUTORELEASE_STR(disp_name, {g_free(disp_name); return;});
 514
 515         /* find whether the directory already exists */
 516         if (folder_find_child_item_by_name(selected_item, new_folder)) {
 517                 alertpanel_error(_("The folder `%s' already exists."),
 518                                  disp_name);
 519                 return;
 520         }
 521
 522         new_item = folder_create_folder(selected_item, new_folder);
 523         if (!new_item) {
 524                 alertpanel_error(_("Can't create the folder `%s'."), disp_name);
 525                 return;
 526         }
 527
 528         /* parent can expand */
 529         gtk_tree_store_set(store, &selected, FOLDERSEL_EXPANDER, TRUE,
 530                            -1);
 531
 532         /* add new child */
 533         foldersel_append_item(store, new_item, &new_child, &selected);
 534
 535         selected_p = gtk_tree_model_get_path(GTK_TREE_MODEL(store), &selected);
 536         new_child_p = gtk_tree_model_get_path(GTK_TREE_MODEL(store),
 537                                               &new_child);
 538
 539         gtk_tree_view_expand_row(GTK_TREE_VIEW(treeview), selected_p, FALSE);
 540         gtk_tree_selection_select_iter(selection, &new_child);
 541         gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(treeview), new_child_p,
 542                                      NULL, TRUE, 0.5, 0.0);
 543         gtk_tree_path_free(new_child_p);
 544         gtk_tree_path_free(selected_p);
 545
 546         folder_write_list();
 547 }
 548
 549 static void foldersel_entry_activated(GtkEntry *entry, gpointer data)
 550 {
 551         gtk_button_clicked(GTK_BUTTON(ok_button));
 552 }
 553
 554 static void foldersel_tree_activated(GtkTreeView *treeview, GtkTreePath *path,
 555                                      GtkTreeViewColumn *column, gpointer data)
 556 {
 557         gtk_button_clicked(GTK_BUTTON(ok_button));
 558 }
 559
 560 static gint delete_event(GtkWidget *widget, GdkEventAny *event, gpointer data)
 561 {
 562         foldersel_cancel(NULL, NULL);
 563         return TRUE;
 564 }
 565
 566 static gboolean key_pressed(GtkWidget *widget, GdkEventKey *event, gpointer data)
 567 {
 568         if (event && event->keyval == GDK_Escape)
 569                 foldersel_cancel(NULL, NULL);
 570         return FALSE;
 571 }
 572
 573 static gint foldersel_folder_name_compare(GtkTreeModel *model, GtkTreeIter *a,
 574                                           GtkTreeIter *b, gpointer context)
 575 {
 576         gchar *str_a = NULL, *str_b = NULL;
 577         gint val = 0;
 578         FolderItem *item_a = NULL, *item_b = NULL;
 579         GtkTreeIter parent;
 580
 581         gtk_tree_model_get(model, a, FOLDERSEL_FOLDERITEM, &item_a, -1);
 582         gtk_tree_model_get(model, b, FOLDERSEL_FOLDERITEM, &item_b, -1);
 583
 584         /* no sort for root folder */
 585         if (!gtk_tree_model_iter_parent(GTK_TREE_MODEL(model), &parent, a))
 586                 return 0;
 587
 588         /* if both a and b are special folders, sort them according to
 589          * their types (which is in-order). Note that this assumes that
 590          * there are no multiple folders of a special type. */
 591         if (item_a->stype != F_NORMAL && item_b->stype != F_NORMAL)
 592                 return item_a->stype - item_b->stype;
 593
 594         /* if b is normal folder, and a is not, b is smaller (ends up
 595          * lower in the list) */
 596         if (item_a->stype != F_NORMAL && item_b->stype == F_NORMAL)
 597                 return item_b->stype - item_a->stype;
 598
 599         /* if b is special folder, and a is not, b is larger (ends up
 600          * higher in the list) */
 601         if (item_a->stype == F_NORMAL && item_b->stype != F_NORMAL)
 602                 return item_b->stype - item_a->stype;
 603
 604         /* XXX g_utf8_collate_key() comparisons may speed things
 605          * up when having large lists of folders */
 606         gtk_tree_model_get(model, a, FOLDERSEL_FOLDERNAME, &str_a, -1);
 607         gtk_tree_model_get(model, b, FOLDERSEL_FOLDERNAME, &str_b, -1);
 608
 609         /* otherwise just compare the folder names */
 610         val = g_utf8_collate(str_a, str_b);
 611
 612         g_free(str_a);
 613         g_free(str_b);
 614
 615         return val;
 616 }
 617
 618 static gboolean tree_view_folder_item_func(GtkTreeModel *model,
 619                                            GtkTreePath *path,
 620                                            GtkTreeIter *iter,
 621                                            FolderItemSearch *data)
 622 {
 623         FolderItem *item = NULL;
 624
 625         gtk_tree_model_get(model, iter, FOLDERSEL_FOLDERITEM, &item, -1);
 626
 627         if (data->item == item) {
 628                 data->path = gtk_tree_path_copy(path);
 629                 data->iter = *iter;
 630                 return TRUE;
 631         }
 632
 633         return FALSE;
 634 }