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            (const gchar *title);
  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                                  const gchar *title)
 138 {
 139         selected_item = NULL;
 140         root_selectable = can_sel_mailbox;
 141
 142         if (!window) {
 143                 foldersel_create(title);
 144                 foldersel_init();
 145         }
 146
 147         foldersel_set_tree(cur_folder, type);
 148
 149         /* select current */
 150         if (folder_item) {
 151                 FolderItemSearch fis;
 152
 153                 fis.item = folder_item;
 154                 fis.path = NULL;
 155
 156                 /* find matching model entry */
 157                 gtk_tree_model_foreach
 158                         (GTK_TREE_MODEL(tree_store),
 159                          (GtkTreeModelForeachFunc)tree_view_folder_item_func,
 160                          &fis);
 161
 162                 if (fis.path) {
 163                         GtkTreeSelection *selection;
 164
 165                         selection = gtk_tree_view_get_selection
 166                                 (GTK_TREE_VIEW(treeview));
 167                         gtk_tree_selection_select_iter(selection, &fis.iter);
 168                         gtk_tree_view_set_cursor(GTK_TREE_VIEW(treeview),
 169                                                  fis.path, NULL, FALSE);
 170                         gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(treeview),
 171                                                      fis.path,
 172                                                      NULL, TRUE, 0.5, 0.0);
 173                         gtk_tree_path_free(fis.path);
 174                 } else
 175                         gtk_tree_view_scroll_to_point
 176                                 (GTK_TREE_VIEW(treeview), 0, 0);
 177         } else
 178                 gtk_tree_view_scroll_to_point(GTK_TREE_VIEW(treeview), 0, 0);
 179
 180         gtk_widget_grab_focus(ok_button);
 181         gtk_widget_grab_focus(treeview);
 182
 183         gtk_window_present(GTK_WINDOW(window));
 184         manage_window_set_transient(GTK_WINDOW(window));
 185         gtk_window_set_modal(GTK_WINDOW(window), TRUE);
 186
 187         cancelled = finished = FALSE;
 188
 189         while (finished == FALSE)
 190                 gtk_main_iteration();
 191
 192         gtk_widget_destroy(window);
 193         window = NULL;
 194
 195         if (!cancelled &&
 196             selected_item && (selected_item->path || root_selectable)) {
 197                 folder_item = selected_item;
 198                 return folder_item;
 199         } else
 200                 return NULL;
 201 }
 202
 203 static gboolean foldersel_search_name_func(GtkTreeModel *model, gint column,
 204                 const gchar *key, GtkTreeIter *iter, gpointer search_data)
 205 {
 206         gchar *store_string = NULL;
 207         FolderItem *item;
 208         gboolean retval;
 209
 210         if (column == FOLDERSEL_FOLDERNAME) {
 211                 /* get the name of the FolderItem, not the displayed string */
 212                 gtk_tree_model_get(model, iter,
 213                            FOLDERSEL_FOLDERITEM, &item, -1);
 214                 store_string = folder_item_get_name(item);
 215         } else {
 216                 gtk_tree_model_get(model, iter, column, &store_string, -1);
 217         }
 218
 219         if (!store_string || !key)
 220                 return FALSE;
 221
 222         retval = (strcasestr(store_string, key) == NULL);
 223
 224         g_free(store_string);
 225
 226         return retval;
 227 }
 228
 229 static void foldersel_size_allocate_cb(GtkWidget *widget,
 230                                          GtkAllocation *allocation)
 231 {
 232         cm_return_if_fail(allocation != NULL);
 233
 234         prefs_common.folderselwin_width = allocation->width;
 235         prefs_common.folderselwin_height = allocation->height;
 236 }
 237
 238 static void foldersel_create(const gchar *title)
 239 {
 240         GtkWidget *vbox;
 241         GtkWidget *scrolledwin;
 242         GtkWidget *confirm_area;
 243         GtkTreeViewColumn *column;
 244         GtkCellRenderer *renderer;
 245         GtkTreeSelection *selection;
 246         static GdkGeometry geometry;
 247
 248         window = gtkut_window_new(GTK_WINDOW_TOPLEVEL, "foldersel");
 249         gtk_window_set_title(GTK_WINDOW(window),
 250                         title ? title : _("Select folder"));
 251         gtk_container_set_border_width(GTK_CONTAINER(window), 4);
 252         gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);
 253         gtk_window_set_resizable(GTK_WINDOW(window), TRUE);
 254
 255         gtk_widget_realize(window);
 256         g_signal_connect(G_OBJECT(window), "delete_event",
 257                          G_CALLBACK(delete_event), NULL);
 258         g_signal_connect(G_OBJECT(window), "key_press_event",
 259                          G_CALLBACK(key_pressed), NULL);
 260         g_signal_connect(G_OBJECT(window), "size_allocate",
 261                          G_CALLBACK(foldersel_size_allocate_cb), NULL);
 262         MANAGE_WINDOW_SIGNALS_CONNECT(window);
 263
 264         vbox = gtk_vbox_new(FALSE, 4);
 265         gtk_container_add(GTK_CONTAINER(window), vbox);
 266
 267         scrolledwin = gtk_scrolled_window_new(NULL, NULL);
 268         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolledwin),
 269                                        GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
 270         gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrolledwin),
 271                                             GTK_SHADOW_IN);
 272         gtk_box_pack_start(GTK_BOX(vbox), scrolledwin, TRUE, TRUE, 0);
 273
 274         tree_store = gtk_tree_store_new(N_FOLDERSEL_COLUMNS,
 275                                         G_TYPE_STRING,
 276                                         G_TYPE_POINTER,
 277                                         GDK_TYPE_PIXBUF,
 278                                         GDK_TYPE_PIXBUF,
 279                                         GDK_TYPE_COLOR,
 280                                         G_TYPE_INT);
 281         gtk_tree_sortable_set_sort_func(GTK_TREE_SORTABLE(tree_store),
 282                                         FOLDERSEL_FOLDERNAME,
 283                                         foldersel_folder_name_compare,
 284                                         NULL, NULL);
 285
 286         treeview = gtk_tree_view_new_with_model(GTK_TREE_MODEL(tree_store));
 287         g_object_unref(G_OBJECT(tree_store));
 288         gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(treeview), FALSE);
 289         gtk_tree_view_set_rules_hint(GTK_TREE_VIEW(treeview),
 290                                      prefs_common.use_stripes_everywhere);
 291         gtk_tree_view_set_enable_tree_lines(GTK_TREE_VIEW(treeview), FALSE);
 292         gtk_tree_view_set_search_column(GTK_TREE_VIEW(treeview),
 293                                         FOLDERSEL_FOLDERNAME);
 294         if (prefs_common.folder_search_wildcard)
 295                 gtk_tree_view_set_search_equal_func(GTK_TREE_VIEW(treeview),
 296                                 foldersel_search_name_func, NULL, NULL);
 297
 298         selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(treeview));
 299         gtk_tree_selection_set_mode(selection, GTK_SELECTION_BROWSE);
 300         gtk_tree_selection_set_select_function(selection, foldersel_selected,
 301                                                NULL, NULL);
 302
 303         g_signal_connect(G_OBJECT(treeview), "row-activated",
 304                          G_CALLBACK(foldersel_tree_activated), NULL);
 305         gtk_container_add(GTK_CONTAINER(scrolledwin), treeview);
 306
 307         column = gtk_tree_view_column_new();
 308         gtk_tree_view_column_set_spacing(column, 2);
 309         renderer = gtk_cell_renderer_pixbuf_new();
 310         gtk_tree_view_column_pack_start(column, renderer, FALSE);
 311         gtk_tree_view_column_set_attributes
 312                 (column, renderer,
 313                  "pixbuf", FOLDERSEL_PIXBUF,
 314                  "pixbuf-expander-open", FOLDERSEL_PIXBUF_OPEN,
 315                  "pixbuf-expander-closed", FOLDERSEL_PIXBUF,
 316                  NULL);
 317
 318         /* create text renderer */
 319         renderer = gtk_cell_renderer_text_new();
 320         gtk_tree_view_column_pack_start(column, renderer, TRUE);
 321         gtk_tree_view_column_set_attributes
 322                 (column, renderer,
 323                  "text", FOLDERSEL_FOLDERNAME,
 324                  "foreground-gdk", FOLDERSEL_FOREGROUND,
 325                  "weight", FOLDERSEL_BOLD,
 326                  NULL);
 327         g_object_set(G_OBJECT(renderer), "weight", PANGO_WEIGHT_BOLD, NULL);
 328         gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
 329
 330         gtk_tree_view_append_column(GTK_TREE_VIEW(treeview), column);
 331
 332         entry = gtk_entry_new();
 333         gtk_editable_set_editable(GTK_EDITABLE(entry), FALSE);
 334         gtk_box_pack_start(GTK_BOX(vbox), entry, FALSE, FALSE, 0);
 335         g_signal_connect(G_OBJECT(entry), "activate",
 336                          G_CALLBACK(foldersel_entry_activated), NULL);
 337
 338         gtkut_stock_button_set_create(&confirm_area,
 339                                       &new_button,    GTK_STOCK_NEW,
 340                                       &cancel_button, GTK_STOCK_CANCEL,
 341                                       &ok_button,     GTK_STOCK_OK);
 342
 343         gtk_box_pack_end(GTK_BOX(vbox), confirm_area, FALSE, FALSE, 0);
 344         gtk_widget_grab_default(ok_button);
 345
 346         g_signal_connect(G_OBJECT(ok_button), "clicked",
 347                          G_CALLBACK(foldersel_ok), NULL);
 348         g_signal_connect(G_OBJECT(cancel_button), "clicked",
 349                          G_CALLBACK(foldersel_cancel), NULL);
 350         g_signal_connect(G_OBJECT(new_button), "clicked",
 351                          G_CALLBACK(foldersel_new_folder), NULL);
 352
 353         if (!geometry.min_height) {
 354                 geometry.min_width = 300;
 355                 geometry.min_height = 360;
 356         }
 357
 358         gtk_window_set_geometry_hints(GTK_WINDOW(window), NULL, &geometry,
 359                                       GDK_HINT_MIN_SIZE);
 360         gtk_widget_set_size_request(window, prefs_common.folderselwin_width,
 361                                     prefs_common.folderselwin_height);
 362
 363         gtk_widget_show_all(vbox);
 364 }
 365
 366 static void foldersel_init(void)
 367 {
 368         stock_pixbuf_gdk(STOCK_PIXMAP_DIR_CLOSE, &folder_pixbuf);
 369         stock_pixbuf_gdk(STOCK_PIXMAP_DIR_OPEN, &folderopen_pixbuf);
 370         stock_pixbuf_gdk(STOCK_PIXMAP_DIR_NOSELECT_CLOSE, &foldernoselect_pixbuf);
 371         stock_pixbuf_gdk(STOCK_PIXMAP_DIR_NOSELECT_OPEN, &foldernoselectopen_pixbuf);
 372 }
 373
 374 void foldersel_reflect_prefs_pixmap_theme(void)
 375 {
 376         if (folder_pixbuf)
 377                 g_object_unref(folder_pixbuf);
 378         if (folderopen_pixbuf)
 379                 g_object_unref(folderopen_pixbuf);
 380         if (foldernoselect_pixbuf)
 381                 g_object_unref(foldernoselect_pixbuf);
 382         if (foldernoselectopen_pixbuf)
 383                 g_object_unref(foldernoselectopen_pixbuf);
 384         foldersel_init();
 385 }
 386
 387 static void foldersel_append_item(GtkTreeStore *store, FolderItem *item,
 388                                   GtkTreeIter *iter, GtkTreeIter *parent)
 389 {
 390         gchar *name, *tmpname;
 391         GdkPixbuf *pixbuf, *pixbuf_open;
 392         gboolean use_color;
 393         PangoWeight weight = PANGO_WEIGHT_NORMAL;
 394         GdkColor *foreground = NULL;
 395         static GdkColor color_noselect = {0, COLOR_DIM, COLOR_DIM, COLOR_DIM};
 396         static GdkColor color_new;
 397
 398         gtkut_convert_int_to_gdk_color(prefs_common.color_new, &color_new);
 399
 400         name = tmpname = folder_item_get_name(item);
 401
 402         if (item->stype != F_NORMAL && FOLDER_IS_LOCAL(item->folder)) {
 403                 switch (item->stype) {
 404                 case F_INBOX:
 405                         if (!strcmp2(item->name, INBOX_DIR))
 406                                 name = _("Inbox");
 407                         break;
 408                 case F_OUTBOX:
 409                         if (!strcmp2(item->name, OUTBOX_DIR))
 410                                 name = _("Sent");
 411                         break;
 412                 case F_QUEUE:
 413                         if (!strcmp2(item->name, QUEUE_DIR))
 414                                 name = _("Queue");
 415                         break;
 416                 case F_TRASH:
 417                         if (!strcmp2(item->name, TRASH_DIR))
 418                                 name = _("Trash");
 419                         break;
 420                 case F_DRAFT:
 421                         if (!strcmp2(item->name, DRAFT_DIR))
 422                                 name = _("Drafts");
 423                         break;
 424                 default:
 425                         break;
 426                 }
 427         }
 428
 429         if (folder_has_parent_of_type(item, F_QUEUE) && item->total_msgs > 0) {
 430                 name = g_strdup_printf("%s (%d)", name, item->total_msgs);
 431         } else if (item->unread_msgs > 0) {
 432                 name = g_strdup_printf("%s (%d)", name, item->unread_msgs);
 433         } else
 434                 name = g_strdup(name);
 435
 436         pixbuf = item->no_select ? foldernoselect_pixbuf : folder_pixbuf;
 437         pixbuf_open =
 438                 item->no_select ? foldernoselectopen_pixbuf : folderopen_pixbuf;
 439
 440         if (folder_has_parent_of_type(item, F_DRAFT) ||
 441             folder_has_parent_of_type(item, F_OUTBOX) ||
 442             folder_has_parent_of_type(item, F_TRASH)) {
 443                 use_color = FALSE;
 444         } else if (folder_has_parent_of_type(item, F_QUEUE)) {
 445                 use_color = (item->total_msgs > 0);
 446                 if (item->total_msgs > 0)
 447                         weight = PANGO_WEIGHT_BOLD;
 448         } else {
 449                 if (item->unread_msgs > 0)
 450                         weight = PANGO_WEIGHT_BOLD;
 451                 use_color = (item->new_msgs > 0);
 452         }
 453
 454         if (item->no_select)
 455                 foreground = &color_noselect;
 456         else if (use_color)
 457                 foreground = &color_new;
 458
 459         /* insert this node */
 460         gtk_tree_store_append(store, iter, parent);
 461         gtk_tree_store_set(store, iter,
 462                            FOLDERSEL_FOLDERNAME, name,
 463                            FOLDERSEL_FOLDERITEM, item,
 464                            FOLDERSEL_PIXBUF, pixbuf,
 465                            FOLDERSEL_PIXBUF_OPEN, pixbuf_open,
 466                            FOLDERSEL_FOREGROUND, foreground,
 467                            FOLDERSEL_BOLD, weight,
 468                            -1);
 469
 470         g_free(tmpname);
 471 }
 472
 473 static void foldersel_insert_gnode_in_store(GtkTreeStore *store, GNode *node,
 474                                             GtkTreeIter *parent)
 475 {
 476         FolderItem *item;
 477         GtkTreeIter child;
 478         GNode *iter;
 479
 480         cm_return_if_fail(node != NULL);
 481         cm_return_if_fail(node->data != NULL);
 482         cm_return_if_fail(store != NULL);
 483
 484         item = FOLDER_ITEM(node->data);
 485         foldersel_append_item(store, item, &child, parent);
 486
 487         /* insert its children (this node as parent) */
 488         for (iter = node->children; iter != NULL; iter = iter->next)
 489                 foldersel_insert_gnode_in_store(store, iter, &child);
 490 }
 491
 492 static void foldersel_set_tree(Folder *cur_folder, FolderSelectionType type)
 493 {
 494         Folder *folder;
 495         GList *list;
 496
 497         for (list = folder_get_list(); list != NULL; list = list->next) {
 498                 folder = FOLDER(list->data);
 499                 cm_return_if_fail(folder != NULL);
 500
 501                 if (type != FOLDER_SEL_ALL) {
 502                         if (FOLDER_TYPE(folder) == F_NEWS)
 503                                 continue;
 504                 }
 505
 506                 if (cur_folder && (cur_folder->klass != folder->klass
 507                     && strcmp2(cur_folder->name, folder->name) != 0))
 508                     continue;
 509
 510                 foldersel_insert_gnode_in_store(tree_store, folder->node, NULL);
 511         }
 512
 513         gtk_tree_sortable_set_sort_column_id(GTK_TREE_SORTABLE(tree_store),
 514                                              FOLDERSEL_FOLDERNAME,
 515                                              GTK_SORT_ASCENDING);
 516
 517         gtk_tree_view_expand_all(GTK_TREE_VIEW(treeview));
 518 }
 519
 520 #include "localfolder.h"
 521 static gboolean foldersel_selected(GtkTreeSelection *selection,
 522                                    GtkTreeModel *model, GtkTreePath *path,
 523                                    gboolean currently_selected, gpointer data)
 524 {
 525         GtkTreeIter iter;
 526         FolderItem *item = NULL;
 527
 528         if (currently_selected)
 529                 return TRUE;
 530
 531         if (!gtk_tree_model_get_iter(GTK_TREE_MODEL(model), &iter, path))
 532                 return TRUE;
 533
 534         gtk_tree_model_get(GTK_TREE_MODEL(tree_store), &iter,
 535                            FOLDERSEL_FOLDERITEM, &item, -1);
 536
 537         selected_item = item;
 538         if (selected_item && selected_item->path) {
 539                 gchar *id;
 540                 id = folder_item_get_identifier(selected_item);
 541                 gtk_entry_set_text(GTK_ENTRY(entry), id);
 542                 g_free(id);
 543         } else
 544         if (root_selectable && selected_item && selected_item->folder &&
 545                         (FOLDER_TYPE(selected_item->folder) == F_MH ||
 546                          FOLDER_TYPE(selected_item->folder) == F_MBOX ||
 547                          FOLDER_TYPE(selected_item->folder) == F_IMAP)) {
 548                 gchar *id = folder_get_identifier(selected_item->folder);
 549                 gtk_entry_set_text(GTK_ENTRY(entry), id);
 550                 g_free(id);
 551         } else
 552                 gtk_entry_set_text(GTK_ENTRY(entry), "");
 553
 554         return TRUE;
 555 }
 556
 557 static void foldersel_ok(GtkButton *button, gpointer data)
 558 {
 559         finished = TRUE;
 560 }
 561
 562 static void foldersel_cancel(GtkButton *button, gpointer data)
 563 {
 564         cancelled = TRUE;
 565         finished = TRUE;
 566 }
 567
 568 static void foldersel_new_folder(GtkButton *button, gpointer data)
 569 {
 570         FolderItem *new_item;
 571         gchar *new_folder;
 572         gchar *disp_name;
 573         gchar *p;
 574         GtkTreeIter selected, new_child;
 575         GtkTreePath *selected_p, *new_child_p;
 576         GtkTreeStore *store;
 577         GtkTreeModel *model;
 578         GtkTreeSelection *selection;
 579
 580         if (!selected_item || FOLDER_TYPE(selected_item->folder) == F_NEWS)
 581                 return;
 582
 583         selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(treeview));
 584         if (!gtk_tree_selection_get_selected(selection, &model, &selected))
 585                 return;
 586         store = GTK_TREE_STORE(model);
 587
 588         new_folder = input_dialog(_("New folder"),
 589                                   _("Input the name of new folder:"),
 590                                   _("NewFolder"));
 591         if (!new_folder) return;
 592         AUTORELEASE_STR(new_folder, {g_free(new_folder); return;});
 593
 594         p = strchr(new_folder, G_DIR_SEPARATOR);
 595         if ((p && FOLDER_TYPE(selected_item->folder) != F_IMAP) ||
 596             (p && FOLDER_TYPE(selected_item->folder) == F_IMAP &&
 597              *(p + 1) != '\0')) {
 598                 alertpanel_error(_("'%c' can't be included in folder name."),
 599                                 G_DIR_SEPARATOR);
 600                 return;
 601         }
 602
 603         if (FOLDER_TYPE(selected_item->folder) != F_IMAP &&
 604                         FOLDER_TYPE(selected_item->folder) != F_NEWS &&
 605                         !folder_local_name_ok(new_folder))
 606                 return;
 607
 608         disp_name = trim_string(new_folder, 32);
 609         AUTORELEASE_STR(disp_name, {g_free(disp_name); return;});
 610
 611         /* find whether the directory already exists */
 612         if (folder_find_child_item_by_name(selected_item, new_folder)) {
 613                 alertpanel_error(_("The folder '%s' already exists."),
 614                                  disp_name);
 615                 return;
 616         }
 617
 618         new_item = folder_create_folder(selected_item, new_folder);
 619         if (!new_item) {
 620                 alertpanel_error(_("Can't create the folder '%s'."), disp_name);
 621                 return;
 622         }
 623
 624         /* add new child */
 625         foldersel_append_item(store, new_item, &new_child, &selected);
 626
 627         selected_p = gtk_tree_model_get_path(GTK_TREE_MODEL(store), &selected);
 628         new_child_p = gtk_tree_model_get_path(GTK_TREE_MODEL(store),
 629                                               &new_child);
 630
 631         gtk_tree_view_expand_row(GTK_TREE_VIEW(treeview), selected_p, FALSE);
 632         gtk_tree_selection_select_iter(selection, &new_child);
 633         gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(treeview), new_child_p,
 634                                      NULL, TRUE, 0.5, 0.0);
 635         gtk_tree_path_free(new_child_p);
 636         gtk_tree_path_free(selected_p);
 637
 638         folder_write_list();
 639 }
 640
 641 static void foldersel_entry_activated(GtkEntry *entry, gpointer data)
 642 {
 643         gtk_button_clicked(GTK_BUTTON(ok_button));
 644 }
 645
 646 static void foldersel_tree_activated(GtkTreeView *treeview, GtkTreePath *path,
 647                                      GtkTreeViewColumn *column, gpointer data)
 648 {
 649         gtk_button_clicked(GTK_BUTTON(ok_button));
 650 }
 651
 652 static gint delete_event(GtkWidget *widget, GdkEventAny *event, gpointer data)
 653 {
 654         foldersel_cancel(NULL, NULL);
 655         return TRUE;
 656 }
 657
 658 static gboolean key_pressed(GtkWidget *widget, GdkEventKey *event, gpointer data)
 659 {
 660         if (!event)
 661                 return FALSE;
 662
 663         if (event->keyval == GDK_KEY_Escape) {
 664                 foldersel_cancel(NULL, NULL);
 665                 return TRUE;
 666         }
 667
 668         GtkTreePath *path = NULL;
 669         gtk_tree_view_get_cursor(GTK_TREE_VIEW(treeview), &path, NULL);
 670         if (path == NULL)
 671                 return FALSE;
 672
 673         switch (event->keyval) {
 674                 case GDK_KEY_Left:
 675                         if (gtk_tree_view_row_expanded(GTK_TREE_VIEW(treeview), path)) {
 676                                 gtk_tree_view_collapse_row(GTK_TREE_VIEW(treeview), path);
 677                         } else {
 678                                 gtk_tree_path_up(path);
 679                                 gtk_tree_view_set_cursor(GTK_TREE_VIEW(treeview), path, NULL, FALSE);
 680                         }
 681                         return TRUE;
 682                         break;
 683                 case GDK_KEY_Right:
 684                         if (!gtk_tree_view_row_expanded(GTK_TREE_VIEW(treeview), path)) {
 685                                 gtk_tree_view_expand_row(GTK_TREE_VIEW(treeview), path, FALSE);
 686                         } else {
 687                                 gtk_tree_path_down(path);
 688                                 gtk_tree_view_set_cursor(GTK_TREE_VIEW(treeview), path, NULL, FALSE);
 689                         }
 690                         return TRUE;
 691                         break;
 692         }
 693
 694         gtk_tree_path_free(path);
 695
 696         return FALSE;
 697 }
 698
 699 static gint foldersel_folder_name_compare(GtkTreeModel *model, GtkTreeIter *a,
 700                                           GtkTreeIter *b, gpointer context)
 701 {
 702         gchar *str_a = NULL, *str_b = NULL;
 703         gint val = 0;
 704         FolderItem *item_a = NULL, *item_b = NULL;
 705         GtkTreeIter parent;
 706
 707         gtk_tree_model_get(model, a, FOLDERSEL_FOLDERITEM, &item_a, -1);
 708         gtk_tree_model_get(model, b, FOLDERSEL_FOLDERITEM, &item_b, -1);
 709
 710         /* no sort for root folder */
 711         if (!gtk_tree_model_iter_parent(GTK_TREE_MODEL(model), &parent, a))
 712                 return 0;
 713
 714         /* if both a and b are special folders, sort them according to
 715          * their types (which is in-order). Note that this assumes that
 716          * there are no multiple folders of a special type. */
 717         if (item_a->stype != F_NORMAL && item_b->stype != F_NORMAL)
 718                 return item_a->stype - item_b->stype;
 719
 720         /* if b is normal folder, and a is not, b is smaller (ends up
 721          * lower in the list) */
 722         if (item_a->stype != F_NORMAL && item_b->stype == F_NORMAL)
 723                 return item_b->stype - item_a->stype;
 724
 725         /* if b is special folder, and a is not, b is larger (ends up
 726          * higher in the list) */
 727         if (item_a->stype == F_NORMAL && item_b->stype != F_NORMAL)
 728                 return item_b->stype - item_a->stype;
 729
 730         /* XXX g_utf8_collate_key() comparisons may speed things
 731          * up when having large lists of folders */
 732         gtk_tree_model_get(model, a, FOLDERSEL_FOLDERNAME, &str_a, -1);
 733         gtk_tree_model_get(model, b, FOLDERSEL_FOLDERNAME, &str_b, -1);
 734
 735         /* otherwise just compare the folder names */
 736         val = g_utf8_collate(str_a, str_b);
 737
 738         g_free(str_a);
 739         g_free(str_b);
 740
 741         return val;
 742 }
 743
 744 static gboolean tree_view_folder_item_func(GtkTreeModel *model,
 745                                            GtkTreePath *path,
 746                                            GtkTreeIter *iter,
 747                                            FolderItemSearch *data)
 748 {
 749         FolderItem *item = NULL;
 750
 751         gtk_tree_model_get(model, iter, FOLDERSEL_FOLDERITEM, &item, -1);
 752
 753         if (data->item == item) {
 754                 data->path = gtk_tree_path_copy(path);
 755                 data->iter = *iter;
 756                 return TRUE;
 757         }
 758
 759         return FALSE;
 760 }