src/foldersel.c

   1 /*
   2  * Claws Mail -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2020 the Claws Mail team and 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 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 #include "defs.h"
  20
  21 #include <glib.h>
  22 #include <glib/gi18n.h>
  23 #include <gdk/gdkkeysyms.h>
  24 #include <gtk/gtk.h>
  25 #include <stdio.h>
  26 #include <unistd.h>
  27 #include <string.h>
  28 #include <sys/stat.h>
  29 #include <sys/types.h>
  30 #include <fcntl.h>
  31 #include <errno.h>
  32
  33 #include "main.h"
  34 #include "utils.h"
  35 #include "gtkutils.h"
  36 #include "stock_pixmap.h"
  37 #include "foldersel.h"
  38 #include "alertpanel.h"
  39 #include "manage_window.h"
  40 #include "folderview.h"
  41 #include "inputdialog.h"
  42 #include "folder.h"
  43 #include "prefs_common.h"
  44 #include "folder_item_prefs.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 *statusbar;
  73 static gint statusbar_cid;
  74 static GtkWidget *ok_button;
  75 static GtkWidget *cancel_button;
  76 static GtkWidget *new_button;
  77 static gboolean   root_selectable;
  78
  79 static FolderItem *folder_item;
  80 static FolderItem *selected_item;
  81
  82 static GtkTreeStore *tree_store;
  83
  84 static gboolean cancelled;
  85 static gboolean finished;
  86
  87 static void foldersel_create            (const gchar *title);
  88 static void foldersel_init              (void);
  89
  90 static void foldersel_append_item       (GtkTreeStore   *store,
  91                                          FolderItem     *item,
  92                                          GtkTreeIter    *iter,
  93                                          GtkTreeIter    *parent);
  94
  95 static void foldersel_set_tree          (Folder                 *cur_folder,
  96                                          FolderSelectionType     type);
  97
  98 static gboolean foldersel_selected      (GtkTreeSelection *selection,
  99                                          GtkTreeModel     *model,
 100                                          GtkTreePath      *path,
 101                                          gboolean          currently_selected,
 102                                          gpointer          data);
 103
 104 static void foldersel_ok                (GtkButton      *button,
 105                                          gpointer        data);
 106 static void foldersel_cancel            (GtkButton      *button,
 107                                          gpointer        data);
 108 static void foldersel_new_folder        (GtkButton      *button,
 109                                          gpointer        data);
 110
 111 static void foldersel_entry_activated   (GtkEntry       *entry,
 112                                          gpointer        data);
 113
 114 static void foldersel_tree_activated    (GtkTreeView            *treeview,
 115                                          GtkTreePath            *path,
 116                                          GtkTreeViewColumn      *column,
 117                                          gpointer                data);
 118
 119 static gint delete_event                (GtkWidget      *widget,
 120                                          GdkEventAny    *event,
 121                                          gpointer        data);
 122 static gboolean key_pressed             (GtkWidget      *widget,
 123                                          GdkEventKey    *event,
 124                                          gpointer        data);
 125
 126 static gint foldersel_folder_name_compare       (GtkTreeModel   *model,
 127                                                  GtkTreeIter    *a,
 128                                                  GtkTreeIter    *b,
 129                                                  gpointer        context);
 130
 131 static gboolean tree_view_folder_item_func      (GtkTreeModel     *model,
 132                                                  GtkTreePath      *path,
 133                                                  GtkTreeIter      *iter,
 134                                                  FolderItemSearch *data);
 135
 136 FolderItem *foldersel_folder_sel(Folder *cur_folder, FolderSelectionType type,
 137                                  const gchar *default_folder, gboolean can_sel_mailbox,
 138                                  const gchar *title)
 139 {
 140         selected_item = NULL;
 141         root_selectable = can_sel_mailbox;
 142
 143         if (!window) {
 144                 foldersel_create(title);
 145                 foldersel_init();
 146         }
 147
 148         foldersel_set_tree(cur_folder, type);
 149
 150         /* select current */
 151         if (folder_item) {
 152                 FolderItemSearch fis;
 153
 154                 fis.item = folder_item;
 155                 fis.path = NULL;
 156
 157                 /* find matching model entry */
 158                 gtk_tree_model_foreach
 159                         (GTK_TREE_MODEL(tree_store),
 160                          (GtkTreeModelForeachFunc)tree_view_folder_item_func,
 161                          &fis);
 162
 163                 if (fis.path) {
 164                         GtkTreeSelection *selection;
 165
 166                         selection = gtk_tree_view_get_selection
 167                                 (GTK_TREE_VIEW(treeview));
 168                         gtk_tree_selection_select_iter(selection, &fis.iter);
 169                         gtk_tree_view_set_cursor(GTK_TREE_VIEW(treeview),
 170                                                  fis.path, NULL, FALSE);
 171                         gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(treeview),
 172                                                      fis.path,
 173                                                      NULL, TRUE, 0.5, 0.0);
 174                         gtk_tree_path_free(fis.path);
 175                 } else
 176                         gtk_tree_view_scroll_to_point
 177                                 (GTK_TREE_VIEW(treeview), 0, 0);
 178         } else
 179                 gtk_tree_view_scroll_to_point(GTK_TREE_VIEW(treeview), 0, 0);
 180
 181         gtk_widget_grab_focus(ok_button);
 182         gtk_widget_grab_focus(treeview);
 183
 184         gtk_window_present(GTK_WINDOW(window));
 185         manage_window_set_transient(GTK_WINDOW(window));
 186         gtk_window_set_modal(GTK_WINDOW(window), TRUE);
 187
 188         cancelled = finished = FALSE;
 189
 190         while (finished == FALSE)
 191                 gtk_main_iteration();
 192
 193         gtk_widget_destroy(window);
 194         window = NULL;
 195
 196         if (!cancelled &&
 197             selected_item && (selected_item->path || root_selectable)) {
 198                 folder_item = selected_item;
 199                 return folder_item;
 200         } else
 201                 return NULL;
 202 }
 203
 204 static gboolean foldersel_search_name_func(GtkTreeModel *model, gint column,
 205                 const gchar *key, GtkTreeIter *iter, gpointer search_data)
 206 {
 207         gchar *store_string = NULL;
 208         FolderItem *item;
 209         gboolean retval;
 210
 211         if (column == FOLDERSEL_FOLDERNAME) {
 212                 /* get the name of the FolderItem, not the displayed string */
 213                 gtk_tree_model_get(model, iter,
 214                            FOLDERSEL_FOLDERITEM, &item, -1);
 215                 store_string = folder_item_get_name(item);
 216         } else {
 217                 gtk_tree_model_get(model, iter, column, &store_string, -1);
 218         }
 219
 220         if (!store_string || !key)
 221                 return FALSE;
 222
 223         retval = (strcasestr(store_string, key) == NULL);
 224
 225         g_free(store_string);
 226
 227         return retval;
 228 }
 229
 230 static void foldersel_size_allocate_cb(GtkWidget *widget,
 231                                          GtkAllocation *allocation)
 232 {
 233         cm_return_if_fail(allocation != NULL);
 234
 235         prefs_common.folderselwin_width = allocation->width;
 236         prefs_common.folderselwin_height = allocation->height;
 237 }
 238
 239 static void foldersel_create(const gchar *title)
 240 {
 241         GtkWidget *vbox;
 242         GtkWidget *scrolledwin;
 243         GtkWidget *confirm_area;
 244         GtkWidget *label;
 245         GtkTreeViewColumn *column;
 246         GtkCellRenderer *renderer;
 247         GtkTreeSelection *selection;
 248         static GdkGeometry geometry;
 249
 250         window = gtkut_window_new(GTK_WINDOW_TOPLEVEL, "foldersel");
 251         gtk_window_set_title(GTK_WINDOW(window),_("Select folder"));
 252         gtk_container_set_border_width(GTK_CONTAINER(window), 4);
 253         gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);
 254         gtk_window_set_resizable(GTK_WINDOW(window), TRUE);
 255         gtk_window_set_type_hint(GTK_WINDOW(window), GDK_WINDOW_TYPE_HINT_DIALOG);
 256
 257         gtk_widget_realize(window);
 258         g_signal_connect(G_OBJECT(window), "delete_event",
 259                          G_CALLBACK(delete_event), NULL);
 260         g_signal_connect(G_OBJECT(window), "key_press_event",
 261                          G_CALLBACK(key_pressed), NULL);
 262         g_signal_connect(G_OBJECT(window), "size_allocate",
 263                          G_CALLBACK(foldersel_size_allocate_cb), NULL);
 264         MANAGE_WINDOW_SIGNALS_CONNECT(window);
 265
 266         vbox = gtk_vbox_new(FALSE, 4);
 267         gtk_container_add(GTK_CONTAINER(window), vbox);
 268
 269         if (title != NULL) {
 270                 label = gtk_label_new(title);
 271                 gtk_label_set_line_wrap(GTK_LABEL(label), TRUE);
 272                 gtk_box_pack_start(GTK_BOX(vbox), label, FALSE, FALSE, 0);
 273         }
 274
 275         scrolledwin = gtk_scrolled_window_new(NULL, NULL);
 276         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolledwin),
 277                                        GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
 278         gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrolledwin),
 279                                             GTK_SHADOW_IN);
 280         gtk_box_pack_start(GTK_BOX(vbox), scrolledwin, TRUE, TRUE, 0);
 281
 282         tree_store = gtk_tree_store_new(N_FOLDERSEL_COLUMNS,
 283                                         G_TYPE_STRING,
 284                                         G_TYPE_POINTER,
 285                                         GDK_TYPE_PIXBUF,
 286                                         GDK_TYPE_PIXBUF,
 287                                         GDK_TYPE_COLOR,
 288                                         G_TYPE_INT);
 289         gtk_tree_sortable_set_sort_func(GTK_TREE_SORTABLE(tree_store),
 290                                         FOLDERSEL_FOLDERNAME,
 291                                         foldersel_folder_name_compare,
 292                                         NULL, NULL);
 293
 294         treeview = gtk_tree_view_new_with_model(GTK_TREE_MODEL(tree_store));
 295         g_object_unref(G_OBJECT(tree_store));
 296         gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(treeview), FALSE);
 297         gtk_tree_view_set_rules_hint(GTK_TREE_VIEW(treeview),
 298                                      prefs_common.use_stripes_everywhere);
 299         gtk_tree_view_set_enable_tree_lines(GTK_TREE_VIEW(treeview), FALSE);
 300         gtk_tree_view_set_search_column(GTK_TREE_VIEW(treeview),
 301                                         FOLDERSEL_FOLDERNAME);
 302         if (prefs_common.folder_search_wildcard)
 303                 gtk_tree_view_set_search_equal_func(GTK_TREE_VIEW(treeview),
 304                                 foldersel_search_name_func, NULL, NULL);
 305
 306         selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(treeview));
 307         gtk_tree_selection_set_mode(selection, GTK_SELECTION_BROWSE);
 308         gtk_tree_selection_set_select_function(selection, foldersel_selected,
 309                                                NULL, NULL);
 310
 311         g_signal_connect(G_OBJECT(treeview), "row-activated",
 312                          G_CALLBACK(foldersel_tree_activated), NULL);
 313         gtk_container_add(GTK_CONTAINER(scrolledwin), treeview);
 314
 315         column = gtk_tree_view_column_new();
 316         gtk_tree_view_column_set_spacing(column, 2);
 317         renderer = gtk_cell_renderer_pixbuf_new();
 318         gtk_tree_view_column_pack_start(column, renderer, FALSE);
 319         gtk_tree_view_column_set_attributes
 320                 (column, renderer,
 321                  "pixbuf", FOLDERSEL_PIXBUF,
 322                  "pixbuf-expander-open", FOLDERSEL_PIXBUF_OPEN,
 323                  "pixbuf-expander-closed", FOLDERSEL_PIXBUF,
 324                  NULL);
 325
 326         /* create text renderer */
 327         renderer = gtk_cell_renderer_text_new();
 328         gtk_cell_renderer_set_padding(renderer, 0, 0);
 329         gtk_tree_view_column_pack_start(column, renderer, TRUE);
 330         gtk_tree_view_column_set_attributes
 331                 (column, renderer,
 332                  "text", FOLDERSEL_FOLDERNAME,
 333                  "foreground-gdk", FOLDERSEL_FOREGROUND,
 334                  "weight", FOLDERSEL_BOLD,
 335                  NULL);
 336         g_object_set(G_OBJECT(renderer), "weight", PANGO_WEIGHT_BOLD, NULL);
 337         gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
 338
 339         gtk_tree_view_append_column(GTK_TREE_VIEW(treeview), column);
 340
 341         statusbar = gtk_statusbar_new();
 342         statusbar_cid = gtk_statusbar_get_context_id(
 343                         GTK_STATUSBAR(statusbar), "Select Folder Dialog" );
 344         gtk_box_pack_start(GTK_BOX(vbox), statusbar, FALSE, FALSE, 0);
 345         g_signal_connect(G_OBJECT(statusbar), "activate",
 346                          G_CALLBACK(foldersel_entry_activated), NULL);
 347
 348         gtkut_stock_button_set_create(&confirm_area,
 349                                       &new_button,    GTK_STOCK_NEW,
 350                                       &cancel_button, GTK_STOCK_CANCEL,
 351                                       &ok_button,     GTK_STOCK_OK);
 352
 353         gtk_box_pack_end(GTK_BOX(vbox), confirm_area, FALSE, FALSE, 0);
 354         gtk_widget_grab_default(ok_button);
 355
 356         g_signal_connect(G_OBJECT(ok_button), "clicked",
 357                          G_CALLBACK(foldersel_ok), NULL);
 358         g_signal_connect(G_OBJECT(cancel_button), "clicked",
 359                          G_CALLBACK(foldersel_cancel), NULL);
 360         g_signal_connect(G_OBJECT(new_button), "clicked",
 361                          G_CALLBACK(foldersel_new_folder), NULL);
 362
 363         if (!geometry.min_height) {
 364                 geometry.min_width = 300;
 365                 geometry.min_height = 360;
 366         }
 367
 368         gtk_window_set_geometry_hints(GTK_WINDOW(window), NULL, &geometry,
 369                                       GDK_HINT_MIN_SIZE);
 370         gtk_widget_set_size_request(window, prefs_common.folderselwin_width,
 371                                     prefs_common.folderselwin_height);
 372
 373         gtk_widget_show_all(vbox);
 374 }
 375
 376 static void foldersel_init(void)
 377 {
 378         stock_pixbuf_gdk(STOCK_PIXMAP_DIR_CLOSE, &folder_pixbuf);
 379         stock_pixbuf_gdk(STOCK_PIXMAP_DIR_OPEN, &folderopen_pixbuf);
 380         stock_pixbuf_gdk(STOCK_PIXMAP_DIR_NOSELECT_CLOSE, &foldernoselect_pixbuf);
 381         stock_pixbuf_gdk(STOCK_PIXMAP_DIR_NOSELECT_OPEN, &foldernoselectopen_pixbuf);
 382 }
 383
 384 void foldersel_reflect_prefs_pixmap_theme(void)
 385 {
 386         if (folder_pixbuf)
 387                 g_object_unref(folder_pixbuf);
 388         if (folderopen_pixbuf)
 389                 g_object_unref(folderopen_pixbuf);
 390         if (foldernoselect_pixbuf)
 391                 g_object_unref(foldernoselect_pixbuf);
 392         if (foldernoselectopen_pixbuf)
 393                 g_object_unref(foldernoselectopen_pixbuf);
 394         foldersel_init();
 395 }
 396
 397 static void foldersel_append_item(GtkTreeStore *store, FolderItem *item,
 398                                   GtkTreeIter *iter, GtkTreeIter *parent)
 399 {
 400         gchar *name, *tmpname;
 401         GdkPixbuf *pixbuf, *pixbuf_open;
 402         gboolean use_color;
 403         PangoWeight weight = PANGO_WEIGHT_NORMAL;
 404         GdkColor *foreground = NULL;
 405         static GdkColor color_noselect = {0, COLOR_DIM, COLOR_DIM, COLOR_DIM};
 406         static GdkColor color_new;
 407
 408         gtkut_convert_int_to_gdk_color(prefs_common.color[COL_NEW], &color_new);
 409
 410         name = folder_item_get_name(item);
 411
 412         if (folder_has_parent_of_type(item, F_QUEUE) && item->total_msgs > 0) {
 413                 tmpname = g_strdup_printf("%s (%d)", name, item->total_msgs);
 414         } else if (item->unread_msgs > 0) {
 415                 tmpname = g_strdup_printf("%s (%d)", name, item->unread_msgs);
 416         } else
 417                 tmpname = g_strdup(name);
 418
 419         g_free(name);
 420         name = tmpname;
 421
 422         pixbuf = item->no_select ? foldernoselect_pixbuf : folder_pixbuf;
 423         pixbuf_open =
 424                 item->no_select ? foldernoselectopen_pixbuf : folderopen_pixbuf;
 425
 426         if (folder_has_parent_of_type(item, F_DRAFT) ||
 427             folder_has_parent_of_type(item, F_OUTBOX) ||
 428             folder_has_parent_of_type(item, F_TRASH)) {
 429                 use_color = FALSE;
 430         } else if (folder_has_parent_of_type(item, F_QUEUE)) {
 431                 use_color = (item->total_msgs > 0);
 432                 if (item->total_msgs > 0)
 433                         weight = PANGO_WEIGHT_BOLD;
 434         } else {
 435                 if (item->unread_msgs > 0)
 436                         weight = PANGO_WEIGHT_BOLD;
 437                 use_color = (item->new_msgs > 0);
 438         }
 439
 440         if (item->no_select)
 441                 foreground = &color_noselect;
 442         else if (use_color)
 443                 foreground = &color_new;
 444
 445         /* insert this node */
 446         gtk_tree_store_append(store, iter, parent);
 447         gtk_tree_store_set(store, iter,
 448                            FOLDERSEL_FOLDERNAME, name,
 449                            FOLDERSEL_FOLDERITEM, item,
 450                            FOLDERSEL_PIXBUF, pixbuf,
 451                            FOLDERSEL_PIXBUF_OPEN, pixbuf_open,
 452                            FOLDERSEL_FOREGROUND, foreground,
 453                            FOLDERSEL_BOLD, weight,
 454                            -1);
 455
 456         g_free(name);
 457 }
 458
 459 static void foldersel_insert_gnode_in_store(GtkTreeStore *store, GNode *node,
 460                                             GtkTreeIter *parent)
 461 {
 462         FolderItem *item;
 463         GtkTreeIter child;
 464         GNode *iter;
 465
 466         cm_return_if_fail(node != NULL);
 467         cm_return_if_fail(node->data != NULL);
 468         cm_return_if_fail(store != NULL);
 469
 470         item = FOLDER_ITEM(node->data);
 471         foldersel_append_item(store, item, &child, parent);
 472
 473         /* insert its children (this node as parent) */
 474         for (iter = node->children; iter != NULL; iter = iter->next)
 475                 foldersel_insert_gnode_in_store(store, iter, &child);
 476 }
 477
 478 static void foldersel_set_tree(Folder *cur_folder, FolderSelectionType type)
 479 {
 480         Folder *folder;
 481         GList *list;
 482
 483         for (list = folder_get_list(); list != NULL; list = list->next) {
 484                 folder = FOLDER(list->data);
 485                 cm_return_if_fail(folder != NULL);
 486
 487                 if (type != FOLDER_SEL_ALL) {
 488                         if (FOLDER_TYPE(folder) == F_NEWS)
 489                                 continue;
 490                 }
 491
 492                 if (cur_folder && (cur_folder->klass != folder->klass
 493                     && g_strcmp0(cur_folder->name, folder->name) != 0))
 494                     continue;
 495
 496                 foldersel_insert_gnode_in_store(tree_store, folder->node, NULL);
 497         }
 498
 499         gtk_tree_sortable_set_sort_column_id(GTK_TREE_SORTABLE(tree_store),
 500                                              FOLDERSEL_FOLDERNAME,
 501                                              GTK_SORT_ASCENDING);
 502
 503         gtk_tree_view_expand_all(GTK_TREE_VIEW(treeview));
 504 }
 505
 506 #include "localfolder.h"
 507 static gboolean foldersel_selected(GtkTreeSelection *selection,
 508                                    GtkTreeModel *model, GtkTreePath *path,
 509                                    gboolean currently_selected, gpointer data)
 510 {
 511         GtkTreeIter iter;
 512         FolderItem *item = NULL;
 513
 514         if (currently_selected)
 515                 return TRUE;
 516
 517         if (!gtk_tree_model_get_iter(GTK_TREE_MODEL(model), &iter, path))
 518                 return TRUE;
 519
 520         gtk_tree_model_get(GTK_TREE_MODEL(tree_store), &iter,
 521                            FOLDERSEL_FOLDERITEM, &item, -1);
 522
 523         selected_item = item;
 524         if (selected_item && selected_item->path) {
 525                 gchar *id;
 526                 id = folder_item_get_identifier(selected_item);
 527                 gtk_statusbar_push(GTK_STATUSBAR(statusbar), statusbar_cid, id);
 528                 g_free(id);
 529         } else if (root_selectable && selected_item && selected_item->folder &&
 530                    (FOLDER_TYPE(selected_item->folder) == F_MH ||
 531                     FOLDER_TYPE(selected_item->folder) == F_MBOX ||
 532                     FOLDER_TYPE(selected_item->folder) == F_IMAP)) {
 533                 gchar *id = folder_get_identifier(selected_item->folder);
 534                 gtk_statusbar_push(GTK_STATUSBAR(statusbar), statusbar_cid,  id);
 535                 g_free(id);
 536         } else
 537                 gtk_statusbar_push(GTK_STATUSBAR(statusbar), statusbar_cid, "");
 538
 539         return TRUE;
 540 }
 541
 542 static void foldersel_ok(GtkButton *button, gpointer data)
 543 {
 544         finished = TRUE;
 545 }
 546
 547 static void foldersel_cancel(GtkButton *button, gpointer data)
 548 {
 549         cancelled = TRUE;
 550         finished = TRUE;
 551 }
 552
 553 static void foldersel_new_folder(GtkButton *button, gpointer data)
 554 {
 555         FolderItem *new_item;
 556         gchar *new_folder;
 557         gchar *disp_name;
 558         gchar *p;
 559         GtkTreeIter selected, new_child;
 560         GtkTreePath *selected_p, *new_child_p;
 561         GtkTreeStore *store;
 562         GtkTreeModel *model;
 563         GtkTreeSelection *selection;
 564
 565         if (!selected_item || FOLDER_TYPE(selected_item->folder) == F_NEWS)
 566                 return;
 567
 568         selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(treeview));
 569         if (!gtk_tree_selection_get_selected(selection, &model, &selected))
 570                 return;
 571         store = GTK_TREE_STORE(model);
 572
 573         new_folder = input_dialog_with_checkbtn(_("New folder"),
 574                 _("Input the name of new folder:"),
 575                 _("NewFolder"),
 576                 _("Inherit properties and processing rules from parent folder"),
 577                 &(prefs_common.inherit_folder_props));
 578
 579         if (!new_folder) return;
 580         AUTORELEASE_STR(new_folder, {g_free(new_folder); return;});
 581
 582         p = strchr(new_folder, G_DIR_SEPARATOR);
 583         if ((p && FOLDER_TYPE(selected_item->folder) != F_IMAP) ||
 584             (p && FOLDER_TYPE(selected_item->folder) == F_IMAP &&
 585              *(p + 1) != '\0')) {
 586                 alertpanel_error(_("'%c' can't be included in folder name."),
 587                                 G_DIR_SEPARATOR);
 588                 return;
 589         }
 590
 591         if (FOLDER_TYPE(selected_item->folder) != F_IMAP &&
 592                         FOLDER_TYPE(selected_item->folder) != F_NEWS &&
 593                         !folder_local_name_ok(new_folder))
 594                 return;
 595
 596         disp_name = trim_string(new_folder, 32);
 597         AUTORELEASE_STR(disp_name, {g_free(disp_name); return;});
 598
 599         /* find whether the directory already exists */
 600         if (folder_find_child_item_by_name(selected_item, new_folder)) {
 601                 alertpanel_error(_("The folder '%s' already exists."),
 602                                  disp_name);
 603                 return;
 604         }
 605
 606         new_item = folder_create_folder(selected_item, new_folder);
 607         if (!new_item) {
 608                 alertpanel_error(_("Can't create the folder '%s'."), disp_name);
 609                 return;
 610         }
 611
 612         if (prefs_common.inherit_folder_props) {
 613                 folder_item_prefs_copy_prefs(selected_item, new_item);
 614         }
 615
 616         /* add new child */
 617         foldersel_append_item(store, new_item, &new_child, &selected);
 618
 619         selected_p = gtk_tree_model_get_path(GTK_TREE_MODEL(store), &selected);
 620         new_child_p = gtk_tree_model_get_path(GTK_TREE_MODEL(store),
 621                                               &new_child);
 622
 623         gtk_tree_view_expand_row(GTK_TREE_VIEW(treeview), selected_p, FALSE);
 624         gtk_tree_selection_select_iter(selection, &new_child);
 625         gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(treeview), new_child_p,
 626                                      NULL, TRUE, 0.5, 0.0);
 627         gtk_tree_path_free(new_child_p);
 628         gtk_tree_path_free(selected_p);
 629
 630         folder_write_list();
 631 }
 632
 633 static void foldersel_entry_activated(GtkEntry *entry, gpointer data)
 634 {
 635         gtk_button_clicked(GTK_BUTTON(ok_button));
 636 }
 637
 638 static void foldersel_tree_activated(GtkTreeView *treeview, GtkTreePath *path,
 639                                      GtkTreeViewColumn *column, gpointer data)
 640 {
 641         gtk_button_clicked(GTK_BUTTON(ok_button));
 642 }
 643
 644 static gint delete_event(GtkWidget *widget, GdkEventAny *event, gpointer data)
 645 {
 646         foldersel_cancel(NULL, NULL);
 647         return TRUE;
 648 }
 649
 650 static gboolean key_pressed(GtkWidget *widget, GdkEventKey *event, gpointer data)
 651 {
 652         if (!event)
 653                 return FALSE;
 654
 655         if (event->keyval == GDK_KEY_Escape) {
 656                 foldersel_cancel(NULL, NULL);
 657                 return TRUE;
 658         }
 659
 660         GtkTreePath *path = NULL;
 661         gtk_tree_view_get_cursor(GTK_TREE_VIEW(treeview), &path, NULL);
 662         if (path == NULL)
 663                 return FALSE;
 664
 665         switch (event->keyval) {
 666                 case GDK_KEY_Left:
 667                         if (gtk_tree_view_row_expanded(GTK_TREE_VIEW(treeview), path)) {
 668                                 gtk_tree_view_collapse_row(GTK_TREE_VIEW(treeview), path);
 669                         } else {
 670                                 gtk_tree_path_up(path);
 671                                 gtk_tree_view_set_cursor(GTK_TREE_VIEW(treeview), path, NULL, FALSE);
 672                         }
 673                         return TRUE;
 674                         break;
 675                 case GDK_KEY_Right:
 676                         if (!gtk_tree_view_row_expanded(GTK_TREE_VIEW(treeview), path)) {
 677                                 gtk_tree_view_expand_row(GTK_TREE_VIEW(treeview), path, FALSE);
 678                         } else {
 679                                 gtk_tree_path_down(path);
 680                                 gtk_tree_view_set_cursor(GTK_TREE_VIEW(treeview), path, NULL, FALSE);
 681                         }
 682                         return TRUE;
 683                         break;
 684         }
 685
 686         gtk_tree_path_free(path);
 687
 688         return FALSE;
 689 }
 690
 691 static gint foldersel_folder_name_compare(GtkTreeModel *model, GtkTreeIter *a,
 692                                           GtkTreeIter *b, gpointer context)
 693 {
 694         gchar *str_a = NULL, *str_b = NULL;
 695         gint val = 0;
 696         FolderItem *item_a = NULL, *item_b = NULL;
 697         GtkTreeIter parent;
 698
 699         gtk_tree_model_get(model, a, FOLDERSEL_FOLDERITEM, &item_a, -1);
 700         gtk_tree_model_get(model, b, FOLDERSEL_FOLDERITEM, &item_b, -1);
 701
 702         /* no sort for root folder */
 703         if (!gtk_tree_model_iter_parent(GTK_TREE_MODEL(model), &parent, a))
 704                 return 0;
 705
 706         /* if both a and b are special folders, sort them according to
 707          * their types (which is in-order). Note that this assumes that
 708          * there are no multiple folders of a special type. */
 709         if (item_a->stype != F_NORMAL && item_b->stype != F_NORMAL)
 710                 return item_a->stype - item_b->stype;
 711
 712         /* if b is normal folder, and a is not, b is smaller (ends up
 713          * lower in the list) */
 714         if (item_a->stype != F_NORMAL && item_b->stype == F_NORMAL)
 715                 return item_b->stype - item_a->stype;
 716
 717         /* if b is special folder, and a is not, b is larger (ends up
 718          * higher in the list) */
 719         if (item_a->stype == F_NORMAL && item_b->stype != F_NORMAL)
 720                 return item_b->stype - item_a->stype;
 721
 722         /* XXX g_utf8_collate_key() comparisons may speed things
 723          * up when having large lists of folders */
 724         gtk_tree_model_get(model, a, FOLDERSEL_FOLDERNAME, &str_a, -1);
 725         gtk_tree_model_get(model, b, FOLDERSEL_FOLDERNAME, &str_b, -1);
 726
 727         /* otherwise just compare the folder names */
 728         val = g_utf8_collate(str_a, str_b);
 729
 730         g_free(str_a);
 731         g_free(str_b);
 732
 733         return val;
 734 }
 735
 736 static gboolean tree_view_folder_item_func(GtkTreeModel *model,
 737                                            GtkTreePath *path,
 738                                            GtkTreeIter *iter,
 739                                            FolderItemSearch *data)
 740 {
 741         FolderItem *item = NULL;
 742
 743         gtk_tree_model_get(model, iter, FOLDERSEL_FOLDERITEM, &item, -1);
 744
 745         if (data->item == item) {
 746                 data->path = gtk_tree_path_copy(path);
 747                 data->iter = *iter;
 748                 return TRUE;
 749         }
 750
 751         return FALSE;
 752 }