src/foldersel.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2013 Hiroyuki Yamamoto and the Claws Mail team
   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 3 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, see <http://www.gnu.org/licenses/>.
  17  *
  18  */
  19
  20 #include "defs.h"
  21
  22 #include <glib.h>
  23 #include <glib/gi18n.h>
  24 #include <gdk/gdkkeysyms.h>
  25 #include <gtk/gtk.h>
  26 #include <stdio.h>
  27 #include <unistd.h>
  28 #include <string.h>
  29 #include <sys/stat.h>
  30 #include <sys/types.h>
  31 #include <fcntl.h>
  32 #include <errno.h>
  33
  34 #include "main.h"
  35 #include "utils.h"
  36 #include "gtkutils.h"
  37 #include "stock_pixmap.h"
  38 #include "foldersel.h"
  39 #include "alertpanel.h"
  40 #include "manage_window.h"
  41 #include "folderview.h"
  42 #include "inputdialog.h"
  43 #include "folder.h"
  44 #include "prefs_common.h"
  45
  46 enum {
  47         FOLDERSEL_FOLDERNAME,
  48         FOLDERSEL_FOLDERITEM,
  49         FOLDERSEL_PIXBUF,
  50         FOLDERSEL_PIXBUF_OPEN,
  51         FOLDERSEL_FOREGROUND,
  52         FOLDERSEL_BOLD,
  53         N_FOLDERSEL_COLUMNS
  54 };
  55
  56 typedef struct _FolderItemSearch        FolderItemSearch;
  57
  58 struct _FolderItemSearch
  59 {
  60         FolderItem *item;
  61         GtkTreePath *path;
  62         GtkTreeIter iter;
  63 };
  64
  65 static GdkPixbuf *folder_pixbuf = NULL;
  66 static GdkPixbuf *folderopen_pixbuf = NULL;
  67 static GdkPixbuf *foldernoselect_pixbuf = NULL;
  68 static GdkPixbuf *foldernoselectopen_pixbuf = NULL;
  69
  70 static GtkWidget *window;
  71 static GtkWidget *treeview;
  72 static GtkWidget *entry;
  73 static GtkWidget *ok_button;
  74 static GtkWidget *cancel_button;
  75 static GtkWidget *new_button;
  76 static gboolean   root_selectable;
  77
  78 static FolderItem *folder_item;
  79 static FolderItem *selected_item;
  80
  81 static GtkTreeStore *tree_store;
  82
  83 static gboolean cancelled;
  84 static gboolean finished;
  85
  86 static void foldersel_create            (void);
  87 static void foldersel_init              (void);
  88
  89 static void foldersel_append_item       (GtkTreeStore   *store,
  90                                          FolderItem     *item,
  91                                          GtkTreeIter    *iter,
  92                                          GtkTreeIter    *parent);
  93
  94 static void foldersel_set_tree          (Folder                 *cur_folder,
  95                                          FolderSelectionType     type);
  96
  97 static gboolean foldersel_selected      (GtkTreeSelection *selection,
  98                                          GtkTreeModel     *model,
  99                                          GtkTreePath      *path,
 100                                          gboolean          currently_selected,
 101                                          gpointer          data);
 102
 103 static void foldersel_ok                (GtkButton      *button,
 104                                          gpointer        data);
 105 static void foldersel_cancel            (GtkButton      *button,
 106                                          gpointer        data);
 107 static void foldersel_new_folder        (GtkButton      *button,
 108                                          gpointer        data);
 109
 110 static void foldersel_entry_activated   (GtkEntry       *entry,
 111                                          gpointer        data);
 112
 113 static void foldersel_tree_activated    (GtkTreeView            *treeview,
 114                                          GtkTreePath            *path,
 115                                          GtkTreeViewColumn      *column,
 116                                          gpointer                data);
 117
 118 static gint delete_event                (GtkWidget      *widget,
 119                                          GdkEventAny    *event,
 120                                          gpointer        data);
 121 static gboolean key_pressed             (GtkWidget      *widget,
 122                                          GdkEventKey    *event,
 123                                          gpointer        data);
 124
 125 static gint foldersel_folder_name_compare       (GtkTreeModel   *model,
 126                                                  GtkTreeIter    *a,
 127                                                  GtkTreeIter    *b,
 128                                                  gpointer        context);
 129
 130 static gboolean tree_view_folder_item_func      (GtkTreeModel     *model,
 131                                                  GtkTreePath      *path,
 132                                                  GtkTreeIter      *iter,
 133                                                  FolderItemSearch *data);
 134
 135 FolderItem *foldersel_folder_sel(Folder *cur_folder, FolderSelectionType type,
 136                                  const gchar *default_folder, gboolean can_sel_mailbox)
 137 {
 138         selected_item = NULL;
 139         root_selectable = can_sel_mailbox;
 140
 141         if (!window) {
 142                 foldersel_create();
 143                 foldersel_init();
 144         }
 145
 146         foldersel_set_tree(cur_folder, type);
 147
 148         /* select current */
 149         if (folder_item) {
 150                 FolderItemSearch fis;
 151
 152                 fis.item = folder_item;
 153                 fis.path = NULL;
 154
 155                 /* find matching model entry */
 156                 gtk_tree_model_foreach
 157                         (GTK_TREE_MODEL(tree_store),
 158                          (GtkTreeModelForeachFunc)tree_view_folder_item_func,
 159                          &fis);
 160
 161                 if (fis.path) {
 162                         GtkTreeSelection *selection;
 163
 164                         selection = gtk_tree_view_get_selection
 165                                 (GTK_TREE_VIEW(treeview));
 166                         gtk_tree_selection_select_iter(selection, &fis.iter);
 167                         gtk_tree_view_set_cursor(GTK_TREE_VIEW(treeview),
 168                                                  fis.path, NULL, FALSE);
 169                         gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(treeview),
 170                                                      fis.path,
 171                                                      NULL, TRUE, 0.5, 0.0);
 172                         gtk_tree_path_free(fis.path);
 173                 } else
 174                         gtk_tree_view_scroll_to_point
 175                                 (GTK_TREE_VIEW(treeview), 0, 0);
 176         } else
 177                 gtk_tree_view_scroll_to_point(GTK_TREE_VIEW(treeview), 0, 0);
 178
 179         gtk_widget_grab_focus(ok_button);
 180         gtk_widget_grab_focus(treeview);
 181
 182         gtk_window_present(GTK_WINDOW(window));
 183         manage_window_set_transient(GTK_WINDOW(window));
 184         gtk_window_set_modal(GTK_WINDOW(window), TRUE);
 185
 186         cancelled = finished = FALSE;
 187
 188         while (finished == FALSE)
 189                 gtk_main_iteration();
 190
 191         gtk_widget_destroy(window);
 192         window = NULL;
 193
 194         if (!cancelled &&
 195             selected_item && (selected_item->path || root_selectable)) {
 196                 folder_item = selected_item;
 197                 return folder_item;
 198         } else
 199                 return NULL;
 200 }
 201
 202 static gboolean foldersel_search_name_func(GtkTreeModel *model, gint column,
 203                 const gchar *key, GtkTreeIter *iter, gpointer search_data)
 204 {
 205         gchar *store_string = NULL;
 206         FolderItem *item;
 207         gboolean retval;
 208
 209         if (column == FOLDERSEL_FOLDERNAME) {
 210                 /* get the name of the FolderItem, not the displayed string */
 211                 gtk_tree_model_get(model, iter,
 212                            FOLDERSEL_FOLDERITEM, &item, -1);
 213                 store_string = folder_item_get_name(item);
 214         } else {
 215                 gtk_tree_model_get(model, iter, column, &store_string, -1);
 216         }
 217
 218         if (!store_string || !key)
 219                 return FALSE;
 220
 221         retval = (strcasestr(store_string, key) == NULL);
 222
 223         g_free(store_string);
 224
 225         return retval;
 226 }
 227
 228 static void foldersel_size_allocate_cb(GtkWidget *widget,
 229                                          GtkAllocation *allocation)
 230 {
 231         cm_return_if_fail(allocation != NULL);
 232
 233         prefs_common.folderselwin_width = allocation->width;
 234         prefs_common.folderselwin_height = allocation->height;
 235 }
 236
 237 static void foldersel_create(void)
 238 {
 239         GtkWidget *vbox;
 240         GtkWidget *scrolledwin;
 241         GtkWidget *confirm_area;
 242         GtkTreeViewColumn *column;
 243         GtkCellRenderer *renderer;
 244         GtkTreeSelection *selection;
 245         static GdkGeometry geometry;
 246
 247         window = gtkut_window_new(GTK_WINDOW_TOPLEVEL, "foldersel");
 248         gtk_window_set_title(GTK_WINDOW(window), _("Select folder"));
 249         gtk_container_set_border_width(GTK_CONTAINER(window), 4);
 250         gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);
 251         gtk_window_set_resizable(GTK_WINDOW(window), TRUE);
 252
 253         gtk_widget_realize(window);
 254         g_signal_connect(G_OBJECT(window), "delete_event",
 255                          G_CALLBACK(delete_event), NULL);
 256         g_signal_connect(G_OBJECT(window), "key_press_event",
 257                          G_CALLBACK(key_pressed), NULL);
 258         g_signal_connect(G_OBJECT(window), "size_allocate",
 259                          G_CALLBACK(foldersel_size_allocate_cb), NULL);
 260         MANAGE_WINDOW_SIGNALS_CONNECT(window);
 261
 262         vbox = gtk_vbox_new(FALSE, 4);
 263         gtk_container_add(GTK_CONTAINER(window), vbox);
 264
 265         scrolledwin = gtk_scrolled_window_new(NULL, NULL);
 266         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolledwin),
 267                                        GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
 268         gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrolledwin),
 269                                             GTK_SHADOW_IN);
 270         gtk_box_pack_start(GTK_BOX(vbox), scrolledwin, TRUE, TRUE, 0);
 271
 272         tree_store = gtk_tree_store_new(N_FOLDERSEL_COLUMNS,
 273                                         G_TYPE_STRING,
 274                                         G_TYPE_POINTER,
 275                                         GDK_TYPE_PIXBUF,
 276                                         GDK_TYPE_PIXBUF,
 277                                         GDK_TYPE_COLOR,
 278                                         G_TYPE_INT);
 279         gtk_tree_sortable_set_sort_func(GTK_TREE_SORTABLE(tree_store),
 280                                         FOLDERSEL_FOLDERNAME,
 281                                         foldersel_folder_name_compare,
 282                                         NULL, NULL);
 283
 284         treeview = gtk_tree_view_new_with_model(GTK_TREE_MODEL(tree_store));
 285         g_object_unref(G_OBJECT(tree_store));
 286         gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(treeview), FALSE);
 287         gtk_tree_view_set_rules_hint(GTK_TREE_VIEW(treeview),
 288                                      prefs_common.use_stripes_everywhere);
 289         gtk_tree_view_set_enable_tree_lines(GTK_TREE_VIEW(treeview), FALSE);
 290         gtk_tree_view_set_search_column(GTK_TREE_VIEW(treeview),
 291                                         FOLDERSEL_FOLDERNAME);
 292         if (prefs_common.folder_search_wildcard)
 293                 gtk_tree_view_set_search_equal_func(GTK_TREE_VIEW(treeview),
 294                                 foldersel_search_name_func, NULL, NULL);
 295
 296         selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(treeview));
 297         gtk_tree_selection_set_mode(selection, GTK_SELECTION_BROWSE);
 298         gtk_tree_selection_set_select_function(selection, foldersel_selected,
 299                                                NULL, NULL);
 300
 301         g_signal_connect(G_OBJECT(treeview), "row-activated",
 302                          G_CALLBACK(foldersel_tree_activated), NULL);
 303         gtk_container_add(GTK_CONTAINER(scrolledwin), treeview);
 304
 305         column = gtk_tree_view_column_new();
 306         gtk_tree_view_column_set_spacing(column, 2);
 307         renderer = gtk_cell_renderer_pixbuf_new();
 308         gtk_tree_view_column_pack_start(column, renderer, FALSE);
 309         gtk_tree_view_column_set_attributes
 310                 (column, renderer,
 311                  "pixbuf", FOLDERSEL_PIXBUF,
 312                  "pixbuf-expander-open", FOLDERSEL_PIXBUF_OPEN,
 313                  "pixbuf-expander-closed", FOLDERSEL_PIXBUF,
 314                  NULL);
 315
 316         /* create text renderer */
 317         renderer = gtk_cell_renderer_text_new();
 318         gtk_tree_view_column_pack_start(column, renderer, TRUE);
 319         gtk_tree_view_column_set_attributes
 320                 (column, renderer,
 321                  "text", FOLDERSEL_FOLDERNAME,
 322                  "foreground-gdk", FOLDERSEL_FOREGROUND,
 323                  "weight", FOLDERSEL_BOLD,
 324                  NULL);
 325         g_object_set(G_OBJECT(renderer), "weight", PANGO_WEIGHT_BOLD, NULL);
 326         gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
 327
 328         gtk_tree_view_append_column(GTK_TREE_VIEW(treeview), column);
 329
 330         entry = gtk_entry_new();
 331         gtk_editable_set_editable(GTK_EDITABLE(entry), FALSE);
 332         gtk_box_pack_start(GTK_BOX(vbox), entry, FALSE, FALSE, 0);
 333         g_signal_connect(G_OBJECT(entry), "activate",
 334                          G_CALLBACK(foldersel_entry_activated), NULL);
 335
 336         gtkut_stock_button_set_create(&confirm_area,
 337                                       &new_button,    GTK_STOCK_NEW,
 338                                       &cancel_button, GTK_STOCK_CANCEL,
 339                                       &ok_button,     GTK_STOCK_OK);
 340
 341         gtk_box_pack_end(GTK_BOX(vbox), confirm_area, FALSE, FALSE, 0);
 342         gtk_widget_grab_default(ok_button);
 343
 344         g_signal_connect(G_OBJECT(ok_button), "clicked",
 345                          G_CALLBACK(foldersel_ok), NULL);
 346         g_signal_connect(G_OBJECT(cancel_button), "clicked",
 347                          G_CALLBACK(foldersel_cancel), NULL);
 348         g_signal_connect(G_OBJECT(new_button), "clicked",
 349                          G_CALLBACK(foldersel_new_folder), NULL);
 350
 351         if (!geometry.min_height) {
 352                 geometry.min_width = 300;
 353                 geometry.min_height = 360;
 354         }
 355
 356         gtk_window_set_geometry_hints(GTK_WINDOW(window), NULL, &geometry,
 357                                       GDK_HINT_MIN_SIZE);
 358         gtk_widget_set_size_request(window, prefs_common.folderselwin_width,
 359                                     prefs_common.folderselwin_height);
 360
 361         gtk_widget_show_all(vbox);
 362 }
 363
 364 static void foldersel_init(void)
 365 {
 366         stock_pixbuf_gdk(STOCK_PIXMAP_DIR_CLOSE, &folder_pixbuf);
 367         stock_pixbuf_gdk(STOCK_PIXMAP_DIR_OPEN, &folderopen_pixbuf);
 368         stock_pixbuf_gdk(STOCK_PIXMAP_DIR_NOSELECT_CLOSE, &foldernoselect_pixbuf);
 369         stock_pixbuf_gdk(STOCK_PIXMAP_DIR_NOSELECT_OPEN, &foldernoselectopen_pixbuf);
 370 }
 371
 372 void foldersel_reflect_prefs_pixmap_theme(void)
 373 {
 374         if (folder_pixbuf)
 375                 g_object_unref(folder_pixbuf);
 376         if (folderopen_pixbuf)
 377                 g_object_unref(folderopen_pixbuf);
 378         if (foldernoselect_pixbuf)
 379                 g_object_unref(foldernoselect_pixbuf);
 380         if (foldernoselectopen_pixbuf)
 381                 g_object_unref(foldernoselectopen_pixbuf);
 382         foldersel_init();
 383 }
 384
 385 static void foldersel_append_item(GtkTreeStore *store, FolderItem *item,
 386                                   GtkTreeIter *iter, GtkTreeIter *parent)
 387 {
 388         gchar *name, *tmpname;
 389         GdkPixbuf *pixbuf, *pixbuf_open;
 390         gboolean use_color;
 391         PangoWeight weight = PANGO_WEIGHT_NORMAL;
 392         GdkColor *foreground = NULL;
 393         static GdkColor color_noselect = {0, COLOR_DIM, COLOR_DIM, COLOR_DIM};
 394         static GdkColor color_new;
 395
 396         gtkut_convert_int_to_gdk_color(prefs_common.color_new, &color_new);
 397
 398         name = tmpname = folder_item_get_name(item);
 399
 400         if (item->stype != F_NORMAL && FOLDER_IS_LOCAL(item->folder)) {
 401                 switch (item->stype) {
 402                 case F_INBOX:
 403                         if (!strcmp2(item->name, INBOX_DIR))
 404                                 name = _("Inbox");
 405                         break;
 406                 case F_OUTBOX:
 407                         if (!strcmp2(item->name, OUTBOX_DIR))
 408                                 name = _("Sent");
 409                         break;
 410                 case F_QUEUE:
 411                         if (!strcmp2(item->name, QUEUE_DIR))
 412                                 name = _("Queue");
 413                         break;
 414                 case F_TRASH:
 415                         if (!strcmp2(item->name, TRASH_DIR))
 416                                 name = _("Trash");
 417                         break;
 418                 case F_DRAFT:
 419                         if (!strcmp2(item->name, DRAFT_DIR))
 420                                 name = _("Drafts");
 421                         break;
 422                 default:
 423                         break;
 424                 }
 425         }
 426
 427         if (folder_has_parent_of_type(item, F_QUEUE) && item->total_msgs > 0) {
 428                 name = g_strdup_printf("%s (%d)", name, item->total_msgs);
 429         } else if (item->unread_msgs > 0) {
 430                 name = g_strdup_printf("%s (%d)", name, item->unread_msgs);
 431         } else
 432                 name = g_strdup(name);
 433
 434         pixbuf = item->no_select ? foldernoselect_pixbuf : folder_pixbuf;
 435         pixbuf_open =
 436                 item->no_select ? foldernoselectopen_pixbuf : folderopen_pixbuf;
 437
 438         if (folder_has_parent_of_type(item, F_DRAFT) ||
 439             folder_has_parent_of_type(item, F_OUTBOX) ||
 440             folder_has_parent_of_type(item, F_TRASH)) {
 441                 use_color = FALSE;
 442         } else if (folder_has_parent_of_type(item, F_QUEUE)) {
 443                 use_color = (item->total_msgs > 0);
 444                 if (item->total_msgs > 0)
 445                         weight = PANGO_WEIGHT_BOLD;
 446         } else {
 447                 if (item->unread_msgs > 0)
 448                         weight = PANGO_WEIGHT_BOLD;
 449                 use_color = (item->new_msgs > 0);
 450         }
 451
 452         if (item->no_select)
 453                 foreground = &color_noselect;
 454         else if (use_color)
 455                 foreground = &color_new;
 456
 457         /* insert this node */
 458         gtk_tree_store_append(store, iter, parent);
 459         gtk_tree_store_set(store, iter,
 460                            FOLDERSEL_FOLDERNAME, name,
 461                            FOLDERSEL_FOLDERITEM, item,
 462                            FOLDERSEL_PIXBUF, pixbuf,
 463                            FOLDERSEL_PIXBUF_OPEN, pixbuf_open,
 464                            FOLDERSEL_FOREGROUND, foreground,
 465                            FOLDERSEL_BOLD, weight,
 466                            -1);
 467
 468         g_free(tmpname);
 469 }
 470
 471 static void foldersel_insert_gnode_in_store(GtkTreeStore *store, GNode *node,
 472                                             GtkTreeIter *parent)
 473 {
 474         FolderItem *item;
 475         GtkTreeIter child;
 476         GNode *iter;
 477
 478         cm_return_if_fail(node != NULL);
 479         cm_return_if_fail(node->data != NULL);
 480         cm_return_if_fail(store != NULL);
 481
 482         item = FOLDER_ITEM(node->data);
 483         foldersel_append_item(store, item, &child, parent);
 484
 485         /* insert its children (this node as parent) */
 486         for (iter = node->children; iter != NULL; iter = iter->next)
 487                 foldersel_insert_gnode_in_store(store, iter, &child);
 488 }
 489
 490 static void foldersel_set_tree(Folder *cur_folder, FolderSelectionType type)
 491 {
 492         Folder *folder;
 493         GList *list;
 494
 495         for (list = folder_get_list(); list != NULL; list = list->next) {
 496                 folder = FOLDER(list->data);
 497                 cm_return_if_fail(folder != NULL);
 498
 499                 if (type != FOLDER_SEL_ALL) {
 500                         if (FOLDER_TYPE(folder) == F_NEWS)
 501                                 continue;
 502                 }
 503
 504                 if (cur_folder && (cur_folder->klass != folder->klass
 505                     && strcmp2(cur_folder->name, folder->name) != 0))
 506                     continue;
 507
 508                 foldersel_insert_gnode_in_store(tree_store, folder->node, NULL);
 509         }
 510
 511         gtk_tree_sortable_set_sort_column_id(GTK_TREE_SORTABLE(tree_store),
 512                                              FOLDERSEL_FOLDERNAME,
 513                                              GTK_SORT_ASCENDING);
 514
 515         gtk_tree_view_expand_all(GTK_TREE_VIEW(treeview));
 516 }
 517
 518 #include "localfolder.h"
 519 static gboolean foldersel_selected(GtkTreeSelection *selection,
 520                                    GtkTreeModel *model, GtkTreePath *path,
 521                                    gboolean currently_selected, gpointer data)
 522 {
 523         GtkTreeIter iter;
 524         FolderItem *item = NULL;
 525
 526         if (currently_selected)
 527                 return TRUE;
 528
 529         if (!gtk_tree_model_get_iter(GTK_TREE_MODEL(model), &iter, path))
 530                 return TRUE;
 531
 532         gtk_tree_model_get(GTK_TREE_MODEL(tree_store), &iter,
 533                            FOLDERSEL_FOLDERITEM, &item, -1);
 534
 535         selected_item = item;
 536         if (selected_item && selected_item->path) {
 537                 gchar *id;
 538                 id = folder_item_get_identifier(selected_item);
 539                 gtk_entry_set_text(GTK_ENTRY(entry), id);
 540                 g_free(id);
 541         } else
 542         if (root_selectable && selected_item && selected_item->folder &&
 543                         (FOLDER_TYPE(selected_item->folder) == F_MH ||
 544                          FOLDER_TYPE(selected_item->folder) == F_MBOX ||
 545                          FOLDER_TYPE(selected_item->folder) == F_IMAP)) {
 546                 gchar *id = folder_get_identifier(selected_item->folder);
 547                 gtk_entry_set_text(GTK_ENTRY(entry), id);
 548                 g_free(id);
 549         } else
 550                 gtk_entry_set_text(GTK_ENTRY(entry), "");
 551
 552         return TRUE;
 553 }
 554
 555 static void foldersel_ok(GtkButton *button, gpointer data)
 556 {
 557         finished = TRUE;
 558 }
 559
 560 static void foldersel_cancel(GtkButton *button, gpointer data)
 561 {
 562         cancelled = TRUE;
 563         finished = TRUE;
 564 }
 565
 566 static void foldersel_new_folder(GtkButton *button, gpointer data)
 567 {
 568         FolderItem *new_item;
 569         gchar *new_folder;
 570         gchar *disp_name;
 571         gchar *p;
 572         GtkTreeIter selected, new_child;
 573         GtkTreePath *selected_p, *new_child_p;
 574         GtkTreeStore *store;
 575         GtkTreeModel *model;
 576         GtkTreeSelection *selection;
 577
 578         if (!selected_item || FOLDER_TYPE(selected_item->folder) == F_NEWS)
 579                 return;
 580
 581         selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(treeview));
 582         if (!gtk_tree_selection_get_selected(selection, &model, &selected))
 583                 return;
 584         store = GTK_TREE_STORE(model);
 585
 586         new_folder = input_dialog(_("New folder"),
 587                                   _("Input the name of new folder:"),
 588                                   _("NewFolder"));
 589         if (!new_folder) return;
 590         AUTORELEASE_STR(new_folder, {g_free(new_folder); return;});
 591
 592         p = strchr(new_folder, G_DIR_SEPARATOR);
 593         if ((p && FOLDER_TYPE(selected_item->folder) != F_IMAP) ||
 594             (p && FOLDER_TYPE(selected_item->folder) == F_IMAP &&
 595              *(p + 1) != '\0')) {
 596                 alertpanel_error(_("'%c' can't be included in folder name."),
 597                                 G_DIR_SEPARATOR);
 598                 return;
 599         }
 600
 601         if (FOLDER_TYPE(selected_item->folder) != F_IMAP &&
 602                         FOLDER_TYPE(selected_item->folder) != F_NEWS &&
 603                         !folder_local_name_ok(new_folder))
 604                 return;
 605
 606         disp_name = trim_string(new_folder, 32);
 607         AUTORELEASE_STR(disp_name, {g_free(disp_name); return;});
 608
 609         /* find whether the directory already exists */
 610         if (folder_find_child_item_by_name(selected_item, new_folder)) {
 611                 alertpanel_error(_("The folder '%s' already exists."),
 612                                  disp_name);
 613                 return;
 614         }
 615
 616         new_item = folder_create_folder(selected_item, new_folder);
 617         if (!new_item) {
 618                 alertpanel_error(_("Can't create the folder '%s'."), disp_name);
 619                 return;
 620         }
 621
 622         /* add new child */
 623         foldersel_append_item(store, new_item, &new_child, &selected);
 624
 625         selected_p = gtk_tree_model_get_path(GTK_TREE_MODEL(store), &selected);
 626         new_child_p = gtk_tree_model_get_path(GTK_TREE_MODEL(store),
 627                                               &new_child);
 628
 629         gtk_tree_view_expand_row(GTK_TREE_VIEW(treeview), selected_p, FALSE);
 630         gtk_tree_selection_select_iter(selection, &new_child);
 631         gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(treeview), new_child_p,
 632                                      NULL, TRUE, 0.5, 0.0);
 633         gtk_tree_path_free(new_child_p);
 634         gtk_tree_path_free(selected_p);
 635
 636         folder_write_list();
 637 }
 638
 639 static void foldersel_entry_activated(GtkEntry *entry, gpointer data)
 640 {
 641         gtk_button_clicked(GTK_BUTTON(ok_button));
 642 }
 643
 644 static void foldersel_tree_activated(GtkTreeView *treeview, GtkTreePath *path,
 645                                      GtkTreeViewColumn *column, gpointer data)
 646 {
 647         gtk_button_clicked(GTK_BUTTON(ok_button));
 648 }
 649
 650 static gint delete_event(GtkWidget *widget, GdkEventAny *event, gpointer data)
 651 {
 652         foldersel_cancel(NULL, NULL);
 653         return TRUE;
 654 }
 655
 656 static gboolean key_pressed(GtkWidget *widget, GdkEventKey *event, gpointer data)
 657 {
 658         if (!event)
 659                 return FALSE;
 660
 661         if (event->keyval == GDK_KEY_Escape) {
 662                 foldersel_cancel(NULL, NULL);
 663                 return TRUE;
 664         }
 665
 666         GtkTreePath *path = NULL;
 667         gtk_tree_view_get_cursor(GTK_TREE_VIEW(treeview), &path, NULL);
 668         if (path == NULL)
 669                 return FALSE;
 670
 671         switch (event->keyval) {
 672                 case GDK_KEY_Left:
 673                         if (gtk_tree_view_row_expanded(GTK_TREE_VIEW(treeview), path)) {
 674                                 gtk_tree_view_collapse_row(GTK_TREE_VIEW(treeview), path);
 675                         } else {
 676                                 gtk_tree_path_up(path);
 677                                 gtk_tree_view_set_cursor(GTK_TREE_VIEW(treeview), path, NULL, FALSE);
 678                         }
 679                         return TRUE;
 680                         break;
 681                 case GDK_KEY_Right:
 682                         if (!gtk_tree_view_row_expanded(GTK_TREE_VIEW(treeview), path)) {
 683                                 gtk_tree_view_expand_row(GTK_TREE_VIEW(treeview), path, FALSE);
 684                         } else {
 685                                 gtk_tree_path_down(path);
 686                                 gtk_tree_view_set_cursor(GTK_TREE_VIEW(treeview), path, NULL, FALSE);
 687                         }
 688                         return TRUE;
 689                         break;
 690         }
 691
 692         gtk_tree_path_free(path);
 693
 694         return FALSE;
 695 }
 696
 697 static gint foldersel_folder_name_compare(GtkTreeModel *model, GtkTreeIter *a,
 698                                           GtkTreeIter *b, gpointer context)
 699 {
 700         gchar *str_a = NULL, *str_b = NULL;
 701         gint val = 0;
 702         FolderItem *item_a = NULL, *item_b = NULL;
 703         GtkTreeIter parent;
 704
 705         gtk_tree_model_get(model, a, FOLDERSEL_FOLDERITEM, &item_a, -1);
 706         gtk_tree_model_get(model, b, FOLDERSEL_FOLDERITEM, &item_b, -1);
 707
 708         /* no sort for root folder */
 709         if (!gtk_tree_model_iter_parent(GTK_TREE_MODEL(model), &parent, a))
 710                 return 0;
 711
 712         /* if both a and b are special folders, sort them according to
 713          * their types (which is in-order). Note that this assumes that
 714          * there are no multiple folders of a special type. */
 715         if (item_a->stype != F_NORMAL && item_b->stype != F_NORMAL)
 716                 return item_a->stype - item_b->stype;
 717
 718         /* if b is normal folder, and a is not, b is smaller (ends up
 719          * lower in the list) */
 720         if (item_a->stype != F_NORMAL && item_b->stype == F_NORMAL)
 721                 return item_b->stype - item_a->stype;
 722
 723         /* if b is special folder, and a is not, b is larger (ends up
 724          * higher in the list) */
 725         if (item_a->stype == F_NORMAL && item_b->stype != F_NORMAL)
 726                 return item_b->stype - item_a->stype;
 727
 728         /* XXX g_utf8_collate_key() comparisons may speed things
 729          * up when having large lists of folders */
 730         gtk_tree_model_get(model, a, FOLDERSEL_FOLDERNAME, &str_a, -1);
 731         gtk_tree_model_get(model, b, FOLDERSEL_FOLDERNAME, &str_b, -1);
 732
 733         /* otherwise just compare the folder names */
 734         val = g_utf8_collate(str_a, str_b);
 735
 736         g_free(str_a);
 737         g_free(str_b);
 738
 739         return val;
 740 }
 741
 742 static gboolean tree_view_folder_item_func(GtkTreeModel *model,
 743                                            GtkTreePath *path,
 744                                            GtkTreeIter *iter,
 745                                            FolderItemSearch *data)
 746 {
 747         FolderItem *item = NULL;
 748
 749         gtk_tree_model_get(model, iter, FOLDERSEL_FOLDERITEM, &item, -1);
 750
 751         if (data->item == item) {
 752                 data->path = gtk_tree_path_copy(path);
 753                 data->iter = *iter;
 754                 return TRUE;
 755         }
 756
 757         return FALSE;
 758 }