src/folderview.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2001 Hiroyuki Yamamoto
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18  */
  19
  20 #include "defs.h"
  21
  22 #include <glib.h>
  23 #include <gdk/gdkkeysyms.h>
  24 #include <gtk/gtkwidget.h>
  25 #include <gtk/gtkscrolledwindow.h>
  26 #include <gtk/gtkctree.h>
  27 #include <gtk/gtkcontainer.h>
  28 #include <gtk/gtkclist.h>
  29 #include <gtk/gtkstyle.h>
  30 #include <gtk/gtksignal.h>
  31 #include <gtk/gtkmain.h>
  32 #include <gtk/gtkstatusbar.h>
  33 #include <gtk/gtkmenu.h>
  34 #include <gtk/gtkmenuitem.h>
  35 #include <gtk/gtkitemfactory.h>
  36 #include <stdio.h>
  37 #include <string.h>
  38 #include <stdlib.h>
  39
  40 #include "intl.h"
  41 #include "main.h"
  42 #include "mainwindow.h"
  43 #include "folderview.h"
  44 #include "summaryview.h"
  45 #include "inputdialog.h"
  46 #include "manage_window.h"
  47 #include "alertpanel.h"
  48 #include "menu.h"
  49 #include "procmsg.h"
  50 #include "utils.h"
  51 #include "gtkutils.h"
  52 #include "prefs_common.h"
  53 #include "prefs_account.h"
  54 #include "account.h"
  55 #include "folder.h"
  56 #include "grouplist_dialog.h"
  57
  58 #include "pixmaps/inbox.xpm"
  59 #include "pixmaps/outbox.xpm"
  60 #include "pixmaps/dir-close.xpm"
  61 #include "pixmaps/dir-open.xpm"
  62 #include "pixmaps/trash.xpm"
  63
  64 typedef enum
  65 {
  66         COL_FOLDER      = 0,
  67         COL_NEW         = 1,
  68         COL_UNREAD      = 2,
  69         COL_TOTAL       = 3
  70 } FolderColumnPos;
  71
  72 #define N_FOLDER_COLS           4
  73 #define COL_FOLDER_WIDTH        150
  74 #define COL_NUM_WIDTH           32
  75
  76 #define STATUSBAR_PUSH(mainwin, str) \
  77 { \
  78         gtk_statusbar_push(GTK_STATUSBAR(mainwin->statusbar), \
  79                            mainwin->folderview_cid, str); \
  80         gtkut_widget_wait_for_draw(mainwin->hbox_stat); \
  81 }
  82
  83 #define STATUSBAR_POP(mainwin) \
  84 { \
  85         gtk_statusbar_pop(GTK_STATUSBAR(mainwin->statusbar), \
  86                           mainwin->folderview_cid); \
  87 }
  88
  89 static GList *folderview_list = NULL;
  90
  91 static GdkFont *normalfont;
  92 static GdkFont *boldfont;
  93
  94 static GdkPixmap *inboxxpm;
  95 static GdkBitmap *inboxxpmmask;
  96 static GdkPixmap *outboxxpm;
  97 static GdkBitmap *outboxxpmmask;
  98 static GdkPixmap *folderxpm;
  99 static GdkBitmap *folderxpmmask;
 100 static GdkPixmap *folderopenxpm;
 101 static GdkBitmap *folderopenxpmmask;
 102 static GdkPixmap *trashxpm;
 103 static GdkBitmap *trashxpmmask;
 104
 105 static void folderview_select_node       (FolderView    *folderview,
 106                                           GtkCTreeNode  *node);
 107 static void folderview_set_folders       (FolderView    *folderview);
 108 static void folderview_sort_folders      (FolderView    *folderview,
 109                                           GtkCTreeNode  *root,
 110                                           Folder        *folder);
 111 static void folderview_append_folder     (FolderView    *folderview,
 112                                           Folder        *folder);
 113 static void folderview_update_node       (FolderView    *folderview,
 114                                           GtkCTreeNode  *node);
 115
 116 static GtkCTreeNode *folderview_find_by_name    (GtkCTree       *ctree,
 117                                                  GtkCTreeNode   *node,
 118                                                  const gchar    *name);
 119
 120 static gint folderview_compare_name     (gconstpointer   a,
 121                                          gconstpointer   b);
 122
 123 /* callback functions */
 124 static void folderview_button_pressed   (GtkWidget      *ctree,
 125                                          GdkEventButton *event,
 126                                          FolderView     *folderview);
 127 static void folderview_button_released  (GtkWidget      *ctree,
 128                                          GdkEventButton *event,
 129                                          FolderView     *folderview);
 130 static void folderview_key_pressed      (GtkWidget      *widget,
 131                                          GdkEventKey    *event,
 132                                          FolderView     *folderview);
 133 static void folderview_selected         (GtkCTree       *ctree,
 134                                          GtkCTreeNode   *row,
 135                                          gint            column,
 136                                          FolderView     *folderview);
 137 static void folderview_tree_expanded    (GtkCTree       *ctree,
 138                                          GtkCTreeNode   *node,
 139                                          FolderView     *folderview);
 140 static void folderview_tree_collapsed   (GtkCTree       *ctree,
 141                                          GtkCTreeNode   *node,
 142                                          FolderView     *folderview);
 143 static void folderview_popup_close      (GtkMenuShell   *menu_shell,
 144                                          FolderView     *folderview);
 145 static void folderview_col_resized      (GtkCList       *clist,
 146                                          gint            column,
 147                                          gint            width,
 148                                          FolderView     *folderview);
 149
 150 static void folderview_update_tree_cb   (FolderView     *folderview,
 151                                          guint           action,
 152                                          GtkWidget      *widget);
 153
 154 static void folderview_new_folder_cb    (FolderView     *folderview,
 155                                          guint           action,
 156                                          GtkWidget      *widget);
 157 static void folderview_new_mbox_folder_cb(FolderView *folderview,
 158                                           guint action,
 159                                           GtkWidget *widget);
 160 static void folderview_rename_folder_cb (FolderView     *folderview,
 161                                          guint           action,
 162                                          GtkWidget      *widget);
 163 static void folderview_rename_mbox_folder_cb(FolderView *folderview,
 164                                              guint action,
 165                                              GtkWidget *widget);
 166 static void folderview_delete_folder_cb (FolderView     *folderview,
 167                                          guint           action,
 168                                          GtkWidget      *widget);
 169 static void folderview_remove_mailbox_cb(FolderView     *folderview,
 170                                          guint           action,
 171                                          GtkWidget      *widget);
 172
 173 static void folderview_new_imap_folder_cb(FolderView    *folderview,
 174                                           guint          action,
 175                                           GtkWidget     *widget);
 176 static void folderview_rm_imap_folder_cb (FolderView    *folderview,
 177                                           guint          action,
 178                                           GtkWidget     *widget);
 179 static void folderview_rm_imap_server_cb (FolderView    *folderview,
 180                                           guint          action,
 181                                           GtkWidget     *widget);
 182
 183 static void folderview_new_news_group_cb(FolderView     *folderview,
 184                                          guint           action,
 185                                          GtkWidget      *widget);
 186 static void folderview_rm_news_group_cb (FolderView     *folderview,
 187                                          guint           action,
 188                                          GtkWidget      *widget);
 189 static void folderview_rm_news_server_cb(FolderView     *folderview,
 190                                          guint           action,
 191                                          GtkWidget      *widget);
 192
 193 static gboolean folderview_drag_motion_cb(GtkWidget      *widget,
 194                                           GdkDragContext *context,
 195                                           gint            x,
 196                                           gint            y,
 197                                           guint           time,
 198                                           FolderView     *folderview);
 199 static void folderview_drag_leave_cb     (GtkWidget        *widget,
 200                                           GdkDragContext   *context,
 201                                           guint             time,
 202                                           FolderView       *folderview);
 203 static void folderview_drag_received_cb  (GtkWidget        *widget,
 204                                           GdkDragContext   *drag_context,
 205                                           gint              x,
 206                                           gint              y,
 207                                           GtkSelectionData *data,
 208                                           guint             info,
 209                                           guint             time,
 210                                           FolderView       *folderview);
 211 static void folderview_scoring_cb(FolderView *folderview, guint action,
 212                                   GtkWidget *widget);
 213
 214 static GtkItemFactoryEntry folderview_mbox_popup_entries[] =
 215 {
 216         {N_("/Create _new folder..."),  NULL, folderview_new_mbox_folder_cb,    0, NULL},
 217         {N_("/_Rename folder..."),      NULL, folderview_rename_mbox_folder_cb, 0, NULL},
 218         {N_("/_Delete folder"),         NULL, folderview_delete_folder_cb, 0, NULL},
 219         {N_("/---"),                    NULL, NULL, 0, "<Separator>"},
 220         {N_("/Remove _mailbox"),        NULL, folderview_remove_mailbox_cb, 0, NULL},
 221         {N_("/---"),                    NULL, NULL, 0, "<Separator>"},
 222         {N_("/_Property..."),           NULL, NULL, 0, NULL},
 223         {N_("/_Scoring..."),            NULL, folderview_scoring_cb, 0, NULL}
 224 };
 225
 226 static GtkItemFactoryEntry folderview_mail_popup_entries[] =
 227 {
 228         {N_("/Create _new folder..."),  NULL, folderview_new_folder_cb,    0, NULL},
 229         {N_("/_Rename folder..."),      NULL, folderview_rename_folder_cb, 0, NULL},
 230         {N_("/_Delete folder"),         NULL, folderview_delete_folder_cb, 0, NULL},
 231         {N_("/---"),                    NULL, NULL, 0, "<Separator>"},
 232         {N_("/_Update folder tree"),    NULL, folderview_update_tree_cb, 0, NULL},
 233         {N_("/Remove _mailbox"),        NULL, folderview_remove_mailbox_cb, 0, NULL},
 234         {N_("/---"),                    NULL, NULL, 0, "<Separator>"},
 235         {N_("/_Property..."),           NULL, NULL, 0, NULL},
 236         {N_("/_Scoring..."),            NULL, folderview_scoring_cb, 0, NULL}
 237 };
 238
 239 static GtkItemFactoryEntry folderview_imap_popup_entries[] =
 240 {
 241         {N_("/Create _new folder..."),  NULL, folderview_new_imap_folder_cb, 0, NULL},
 242         {N_("/_Rename folder..."),      NULL, NULL, 0, NULL},
 243         {N_("/_Delete folder"),         NULL, folderview_rm_imap_folder_cb, 0, NULL},
 244         {N_("/---"),                    NULL, NULL, 0, "<Separator>"},
 245         {N_("/_Update folder tree"),    NULL, folderview_update_tree_cb, 0, NULL},
 246         {N_("/Remove _IMAP4 account"),  NULL, folderview_rm_imap_server_cb, 0, NULL},
 247         {N_("/---"),                    NULL, NULL, 0, "<Separator>"},
 248         {N_("/_Property..."),           NULL, NULL, 0, NULL},
 249         {N_("/_Scoring..."),            NULL, folderview_scoring_cb, 0, NULL}
 250 };
 251
 252 static GtkItemFactoryEntry folderview_news_popup_entries[] =
 253 {
 254         {N_("/_Subscribe to newsgroup..."),
 255                                          NULL, folderview_new_news_group_cb, 0, NULL},
 256         {N_("/_Remove newsgroup"),       NULL, folderview_rm_news_group_cb, 0, NULL},
 257         {N_("/---"),                     NULL, NULL, 0, "<Separator>"},
 258         {N_("/Remove _news account"),    NULL, folderview_rm_news_server_cb, 0, NULL},
 259         {N_("/---"),                     NULL, NULL, 0, "<Separator>"},
 260         {N_("/_Property..."),            NULL, NULL, 0, NULL},
 261         {N_("/_Scoring..."),            NULL, folderview_scoring_cb, 0, NULL}
 262 };
 263
 264
 265 FolderView *folderview_create(void)
 266 {
 267         FolderView *folderview;
 268         GtkWidget *scrolledwin;
 269         GtkWidget *ctree;
 270         gchar *titles[N_FOLDER_COLS] = {_("Folder"), _("New"),
 271                                         _("Unread"), _("#")};
 272         GtkWidget *mail_popup;
 273         GtkWidget *news_popup;
 274         GtkWidget *imap_popup;
 275         GtkWidget *mbox_popup;
 276         GtkItemFactory *mail_factory;
 277         GtkItemFactory *news_factory;
 278         GtkItemFactory *imap_factory;
 279         GtkItemFactory *mbox_factory;
 280         gint n_entries;
 281         gint i;
 282
 283         debug_print(_("Creating folder view...\n"));
 284         folderview = g_new0(FolderView, 1);
 285
 286         scrolledwin = gtk_scrolled_window_new(NULL, NULL);
 287         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolledwin),
 288                                        GTK_POLICY_AUTOMATIC,
 289                                        GTK_POLICY_ALWAYS);
 290         gtk_widget_set_usize(scrolledwin,
 291                              prefs_common.folderview_width,
 292                              prefs_common.folderview_height);
 293
 294         ctree = gtk_ctree_new_with_titles(N_FOLDER_COLS, COL_FOLDER, titles);
 295         gtk_container_add(GTK_CONTAINER(scrolledwin), ctree);
 296         gtk_clist_set_selection_mode(GTK_CLIST(ctree), GTK_SELECTION_BROWSE);
 297         gtk_clist_set_column_justification(GTK_CLIST(ctree), COL_NEW,
 298                                            GTK_JUSTIFY_RIGHT);
 299         gtk_clist_set_column_justification(GTK_CLIST(ctree), COL_UNREAD,
 300                                            GTK_JUSTIFY_RIGHT);
 301         gtk_clist_set_column_justification(GTK_CLIST(ctree), COL_TOTAL,
 302                                            GTK_JUSTIFY_RIGHT);
 303         gtk_clist_set_column_width(GTK_CLIST(ctree), COL_FOLDER,
 304                                    prefs_common.folder_col_folder);
 305         gtk_clist_set_column_width(GTK_CLIST(ctree), COL_NEW,
 306                                    prefs_common.folder_col_new);
 307         gtk_clist_set_column_width(GTK_CLIST(ctree), COL_UNREAD,
 308                                    prefs_common.folder_col_unread);
 309         gtk_clist_set_column_width(GTK_CLIST(ctree), COL_TOTAL,
 310                                    prefs_common.folder_col_total);
 311         gtk_ctree_set_line_style(GTK_CTREE(ctree), GTK_CTREE_LINES_DOTTED);
 312         gtk_ctree_set_expander_style(GTK_CTREE(ctree),
 313                                      GTK_CTREE_EXPANDER_SQUARE);
 314         gtk_ctree_set_indent(GTK_CTREE(ctree), CTREE_INDENT);
 315
 316         /* don't let title buttons take key focus */
 317         for (i = 0; i < N_FOLDER_COLS; i++)
 318                 GTK_WIDGET_UNSET_FLAGS(GTK_CLIST(ctree)->column[i].button,
 319                                        GTK_CAN_FOCUS);
 320
 321         /* popup menu */
 322         n_entries = sizeof(folderview_mail_popup_entries) /
 323                 sizeof(folderview_mail_popup_entries[0]);
 324         mail_popup = menu_create_items(folderview_mail_popup_entries,
 325                                        n_entries,
 326                                        "<MailFolder>", &mail_factory,
 327                                        folderview);
 328         n_entries = sizeof(folderview_imap_popup_entries) /
 329                 sizeof(folderview_imap_popup_entries[0]);
 330         imap_popup = menu_create_items(folderview_imap_popup_entries,
 331                                        n_entries,
 332                                        "<IMAPFolder>", &imap_factory,
 333                                        folderview);
 334         n_entries = sizeof(folderview_news_popup_entries) /
 335                 sizeof(folderview_news_popup_entries[0]);
 336         news_popup = menu_create_items(folderview_news_popup_entries,
 337                                        n_entries,
 338                                        "<NewsFolder>", &news_factory,
 339                                        folderview);
 340         n_entries = sizeof(folderview_mbox_popup_entries) /
 341                 sizeof(folderview_mbox_popup_entries[0]);
 342         mbox_popup = menu_create_items(folderview_mbox_popup_entries,
 343                                        n_entries,
 344                                        "<MailFolder>", &mbox_factory,
 345                                        folderview);
 346
 347         gtk_signal_connect(GTK_OBJECT(ctree), "key_press_event",
 348                            GTK_SIGNAL_FUNC(folderview_key_pressed),
 349                            folderview);
 350         gtk_signal_connect(GTK_OBJECT(ctree), "button_press_event",
 351                            GTK_SIGNAL_FUNC(folderview_button_pressed),
 352                            folderview);
 353         gtk_signal_connect(GTK_OBJECT(ctree), "button_release_event",
 354                            GTK_SIGNAL_FUNC(folderview_button_released),
 355                            folderview);
 356         gtk_signal_connect(GTK_OBJECT(ctree), "tree_select_row",
 357                            GTK_SIGNAL_FUNC(folderview_selected), folderview);
 358
 359         gtk_signal_connect_after(GTK_OBJECT(ctree), "tree_expand",
 360                                  GTK_SIGNAL_FUNC(folderview_tree_expanded),
 361                                  folderview);
 362         gtk_signal_connect_after(GTK_OBJECT(ctree), "tree_collapse",
 363                                  GTK_SIGNAL_FUNC(folderview_tree_collapsed),
 364                                  folderview);
 365
 366         gtk_signal_connect(GTK_OBJECT(ctree), "resize_column",
 367                            GTK_SIGNAL_FUNC(folderview_col_resized),
 368                            folderview);
 369
 370         gtk_signal_connect(GTK_OBJECT(mail_popup), "selection_done",
 371                            GTK_SIGNAL_FUNC(folderview_popup_close),
 372                            folderview);
 373         gtk_signal_connect(GTK_OBJECT(imap_popup), "selection_done",
 374                            GTK_SIGNAL_FUNC(folderview_popup_close),
 375                            folderview);
 376         gtk_signal_connect(GTK_OBJECT(news_popup), "selection_done",
 377                            GTK_SIGNAL_FUNC(folderview_popup_close),
 378                            folderview);
 379         gtk_signal_connect(GTK_OBJECT(mbox_popup), "selection_done",
 380                            GTK_SIGNAL_FUNC(folderview_popup_close),
 381                            folderview);
 382
 383         /* drop callback */
 384         gtk_drag_dest_set(ctree, GTK_DEST_DEFAULT_ALL &
 385                           ~GTK_DEST_DEFAULT_HIGHLIGHT,
 386                           summary_drag_types, 1,
 387                           GDK_ACTION_MOVE);
 388         gtk_signal_connect(GTK_OBJECT(ctree), "drag_motion",
 389                            GTK_SIGNAL_FUNC(folderview_drag_motion_cb),
 390                            folderview);
 391         gtk_signal_connect(GTK_OBJECT(ctree), "drag_leave",
 392                            GTK_SIGNAL_FUNC(folderview_drag_leave_cb),
 393                            folderview);
 394         gtk_signal_connect(GTK_OBJECT(ctree), "drag_data_received",
 395                            GTK_SIGNAL_FUNC(folderview_drag_received_cb),
 396                            folderview);
 397
 398         folderview->scrolledwin  = scrolledwin;
 399         folderview->ctree        = ctree;
 400         folderview->mail_popup   = mail_popup;
 401         folderview->mail_factory = mail_factory;
 402         folderview->imap_popup   = imap_popup;
 403         folderview->imap_factory = imap_factory;
 404         folderview->news_popup   = news_popup;
 405         folderview->news_factory = news_factory;
 406         folderview->mbox_popup   = mbox_popup;
 407         folderview->mbox_factory = mbox_factory;
 408
 409         gtk_widget_show_all(scrolledwin);
 410
 411         folderview_list = g_list_append(folderview_list, folderview);
 412
 413         return folderview;
 414 }
 415
 416 void folderview_init(FolderView *folderview)
 417 {
 418         GtkWidget *ctree = folderview->ctree;
 419
 420         PIXMAP_CREATE(ctree, inboxxpm, inboxxpmmask, inbox_xpm);
 421         PIXMAP_CREATE(ctree, outboxxpm, outboxxpmmask, outbox_xpm);
 422         PIXMAP_CREATE(ctree, folderxpm, folderxpmmask, DIRECTORY_CLOSE_XPM);
 423         PIXMAP_CREATE(ctree, folderopenxpm, folderopenxpmmask,
 424                       DIRECTORY_OPEN_XPM);
 425         PIXMAP_CREATE(ctree, trashxpm, trashxpmmask, trash_xpm);
 426
 427         if (!normalfont)
 428                 normalfont = gdk_fontset_load(NORMAL_FONT);
 429         if (!boldfont)
 430                 boldfont = gdk_fontset_load(BOLD_FONT);
 431 }
 432
 433 void folderview_set(FolderView *folderview)
 434 {
 435         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
 436         MainWindow *mainwin = folderview->mainwin;
 437
 438         debug_print(_("Setting folder info...\n"));
 439         STATUSBAR_PUSH(mainwin, _("Setting folder info..."));
 440
 441         main_window_cursor_wait(mainwin);
 442
 443         folderview->selected = NULL;
 444         folderview->opened = NULL;
 445
 446         gtk_clist_freeze(GTK_CLIST(ctree));
 447         gtk_clist_clear(GTK_CLIST(ctree));
 448         gtk_clist_thaw(GTK_CLIST(ctree));
 449         gtk_clist_freeze(GTK_CLIST(ctree));
 450
 451         folderview_set_folders(folderview);
 452
 453         gtk_clist_thaw(GTK_CLIST(ctree));
 454         main_window_cursor_normal(mainwin);
 455         STATUSBAR_POP(mainwin);
 456 }
 457
 458 void folderview_set_all(void)
 459 {
 460         GList *list;
 461
 462         for (list = folderview_list; list != NULL; list = list->next)
 463                 folderview_set((FolderView *)list->data);
 464 }
 465
 466 void folderview_select(FolderView *folderview, FolderItem *item)
 467 {
 468         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
 469         GtkCTreeNode *node;
 470
 471         if (!item) return;
 472
 473         node = gtk_ctree_find_by_row_data(ctree, NULL, item);
 474         if (node) folderview_select_node(folderview, node);
 475 }
 476
 477 static void folderview_select_node(FolderView *folderview, GtkCTreeNode *node)
 478 {
 479         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
 480
 481         g_return_if_fail(node != NULL);
 482
 483         folderview->open_folder = TRUE;
 484         gtk_ctree_select(ctree, node);
 485         gtkut_ctree_set_focus_row(ctree, node);
 486         if (folderview->summaryview->messages > 0)
 487                 gtk_widget_grab_focus(folderview->summaryview->ctree);
 488         else
 489                 gtk_widget_grab_focus(folderview->ctree);
 490
 491         while ((node = gtkut_ctree_find_collapsed_parent(ctree, node))
 492                != NULL)
 493                 gtk_ctree_expand(ctree, node);
 494 }
 495
 496 void folderview_unselect(FolderView *folderview)
 497 {
 498         if (folderview->opened && !GTK_CTREE_ROW(folderview->opened)->children)
 499                 gtk_ctree_collapse
 500                         (GTK_CTREE(folderview->ctree), folderview->opened);
 501
 502         folderview->selected = folderview->opened = NULL;
 503 }
 504
 505 static GtkCTreeNode *folderview_find_next_unread(GtkCTree *ctree,
 506                                                  GtkCTreeNode *node)
 507 {
 508         FolderItem *item;
 509
 510         if (node)
 511                 node = gtkut_ctree_node_next(ctree, node);
 512         else
 513                 node = GTK_CTREE_NODE(GTK_CLIST(ctree)->row_list);
 514
 515         for (; node != NULL; node = gtkut_ctree_node_next(ctree, node)) {
 516                 item = gtk_ctree_node_get_row_data(ctree, node);
 517                 if (item && item->unread > 0 && item->stype != F_TRASH)
 518                         return node;
 519         }
 520
 521         return NULL;
 522 }
 523
 524 void folderview_select_next_unread(FolderView *folderview)
 525 {
 526         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
 527         GtkCTreeNode *node = NULL;
 528
 529         if ((node = folderview_find_next_unread(ctree, folderview->opened))
 530             != NULL) {
 531                 folderview_select_node(folderview, node);
 532                 return;
 533         }
 534
 535         if (!folderview->opened ||
 536             folderview->opened == GTK_CTREE_NODE(GTK_CLIST(ctree)->row_list))
 537                 return;
 538         /* search again from the first node */
 539         if ((node = folderview_find_next_unread(ctree, NULL)) != NULL)
 540                 folderview_select_node(folderview, node);
 541 }
 542
 543 void folderview_update_msg_num(FolderView *folderview, GtkCTreeNode *row,
 544                                gint new, gint unread, gint total)
 545 {
 546         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
 547         static GtkCTreeNode *prev_row = NULL;
 548         FolderItem *item;
 549
 550         if (!row) return;
 551
 552         item = gtk_ctree_node_get_row_data(ctree, row);
 553         if (!item) return;
 554         if (prev_row     == row    &&
 555             item->new    == new    &&
 556             item->unread == unread &&
 557             item->total  == total)
 558                 return;
 559
 560         prev_row = row;
 561
 562         item->new    = new;
 563         item->unread = unread;
 564         item->total  = total;
 565
 566         folderview_update_node(folderview, row);
 567 }
 568
 569 static void folderview_set_folders(FolderView *folderview)
 570 {
 571         GList *list;
 572
 573         list = folder_get_list();
 574
 575         for (; list != NULL; list = list->next)
 576                 folderview_append_folder(folderview, FOLDER(list->data));
 577 }
 578
 579 static void folderview_scan_tree_func(Folder *folder, FolderItem *item,
 580                                       gpointer data)
 581 {
 582         GList *list;
 583         gchar *rootpath;
 584
 585         if (folder->type == F_MH || folder->type == F_MBOX ||
 586             folder->type == F_MAILDIR)
 587                 rootpath = LOCAL_FOLDER(folder)->rootpath;
 588         else if (folder->type == F_IMAP && folder->account &&
 589                  folder->account->recv_server)
 590                 rootpath = folder->account->recv_server;
 591         else
 592                 return;
 593
 594         for (list = folderview_list; list != NULL; list = list->next) {
 595                 FolderView *folderview = (FolderView *)list->data;
 596                 MainWindow *mainwin = folderview->mainwin;
 597                 gchar *str;
 598
 599                 if (item->path)
 600                         str = g_strdup_printf(_("Scanning folder %s%c%s ..."),
 601                                               rootpath, G_DIR_SEPARATOR,
 602                                               item->path);
 603                 else
 604                         str = g_strdup_printf(_("Scanning folder %s ..."),
 605                                               rootpath);
 606
 607                 STATUSBAR_PUSH(mainwin, str);
 608                 STATUSBAR_POP(mainwin);
 609                 g_free(str);
 610         }
 611 }
 612
 613 static GtkWidget *label_window_create(const gchar *str)
 614 {
 615         GtkWidget *window;
 616         GtkWidget *label;
 617
 618         window = gtk_window_new(GTK_WINDOW_DIALOG);
 619         gtk_widget_set_usize(window, 380, 60);
 620         gtk_container_set_border_width(GTK_CONTAINER(window), 8);
 621         gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);
 622         gtk_window_set_title(GTK_WINDOW(window), str);
 623         gtk_window_set_modal(GTK_WINDOW(window), TRUE);
 624         gtk_window_set_policy(GTK_WINDOW(window), FALSE, FALSE, FALSE);
 625         manage_window_set_transient(GTK_WINDOW(window));
 626
 627         label = gtk_label_new(str);
 628         gtk_container_add(GTK_CONTAINER(window), label);
 629         gtk_widget_show(label);
 630
 631         gtk_widget_show_now(window);
 632
 633         return window;
 634 }
 635
 636 void folderview_update_tree(Folder *folder)
 637 {
 638         GtkWidget *window;
 639
 640         g_return_if_fail(folder != NULL);
 641
 642         if (!folder->scan_tree) return;
 643
 644         window = label_window_create(_("Updating folder tree..."));
 645
 646         folder_set_ui_func(folder, folderview_scan_tree_func, NULL);
 647         folder->scan_tree(folder);
 648         folder_set_ui_func(folder, NULL, NULL);
 649
 650         folder_write_list();
 651         folderview_set_all();
 652
 653         gtk_widget_destroy(window);
 654 }
 655
 656 void folderview_update_all(void)
 657 {
 658         GList *list;
 659         GtkWidget *window;
 660
 661         window = label_window_create(_("Updating all folders..."));
 662
 663         list = folder_get_list();
 664         for (; list != NULL; list = list->next) {
 665                 Folder *folder = list->data;
 666
 667                 if (!folder->scan_tree) continue;
 668                 folder_set_ui_func(folder, folderview_scan_tree_func, NULL);
 669                 folder->scan_tree(folder);
 670                 folder_set_ui_func(folder, NULL, NULL);
 671         }
 672
 673         folder_write_list();
 674         folderview_set_all();
 675
 676         gtk_widget_destroy(window);
 677 }
 678
 679 static gboolean folderview_search_new_recursive(GtkCTree *ctree,
 680                                                 GtkCTreeNode *node)
 681 {
 682         FolderItem *item;
 683
 684         if (node) {
 685                 item = gtk_ctree_node_get_row_data(ctree, node);
 686                 if (item) {
 687                         if (item->new > 0 ||
 688                             (item->stype == F_QUEUE && item->total > 0))
 689                                 return TRUE;
 690                 }
 691                 node = GTK_CTREE_ROW(node)->children;
 692         } else
 693                 node = GTK_CTREE_NODE(GTK_CLIST(ctree)->row_list);
 694
 695         while (node) {
 696                 if (folderview_search_new_recursive(ctree, node) == TRUE)
 697                         return TRUE;
 698                 node = GTK_CTREE_ROW(node)->sibling;
 699         }
 700
 701         return FALSE;
 702 }
 703
 704 static gboolean folderview_have_new_children(FolderView *folderview,
 705                                              GtkCTreeNode *node)
 706 {
 707         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
 708
 709         if (!node)
 710                 node = GTK_CTREE_NODE(GTK_CLIST(ctree)->row_list);
 711         if (!node)
 712                 return FALSE;
 713
 714         node = GTK_CTREE_ROW(node)->children;
 715
 716         while (node) {
 717                 if (folderview_search_new_recursive(ctree, node) == TRUE)
 718                         return TRUE;
 719                 node = GTK_CTREE_ROW(node)->sibling;
 720         }
 721
 722         return FALSE;
 723 }
 724
 725 static gboolean folderview_search_unread_recursive(GtkCTree *ctree,
 726                                                    GtkCTreeNode *node)
 727 {
 728         FolderItem *item;
 729
 730         if (node) {
 731                 item = gtk_ctree_node_get_row_data(ctree, node);
 732                 if (item) {
 733                         if (item->unread > 0 ||
 734                             (item->stype == F_QUEUE && item->total > 0))
 735                                 return TRUE;
 736                 }
 737                 node = GTK_CTREE_ROW(node)->children;
 738         } else
 739                 node = GTK_CTREE_NODE(GTK_CLIST(ctree)->row_list);
 740
 741         while (node) {
 742                 if (folderview_search_unread_recursive(ctree, node) == TRUE)
 743                         return TRUE;
 744                 node = GTK_CTREE_ROW(node)->sibling;
 745         }
 746
 747         return FALSE;
 748 }
 749
 750 static gboolean folderview_have_unread_children(FolderView *folderview,
 751                                                 GtkCTreeNode *node)
 752 {
 753         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
 754
 755         if (!node)
 756                 node = GTK_CTREE_NODE(GTK_CLIST(ctree)->row_list);
 757         if (!node)
 758                 return FALSE;
 759
 760         node = GTK_CTREE_ROW(node)->children;
 761
 762         while (node) {
 763                 if (folderview_search_unread_recursive(ctree, node) == TRUE)
 764                         return TRUE;
 765                 node = GTK_CTREE_ROW(node)->sibling;
 766         }
 767
 768         return FALSE;
 769 }
 770
 771 static void folderview_update_node(FolderView *folderview, GtkCTreeNode *node)
 772 {
 773         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
 774         GtkStyle *style, *prev_style, *ctree_style;
 775         GtkCTreeNode *parent;
 776         FolderItem *item;
 777         GdkPixmap *xpm, *openxpm;
 778         GdkBitmap *mask, *openmask;
 779         gchar *name;
 780         gchar *str;
 781         gboolean add_unread_mark;
 782         gboolean use_bold, use_color;
 783
 784         item = gtk_ctree_node_get_row_data(ctree, node);
 785         g_return_if_fail(item != NULL);
 786
 787         switch (item->stype) {
 788         case F_INBOX:
 789                 xpm = openxpm = inboxxpm;
 790                 mask = openmask = inboxxpmmask;
 791                 name = g_strdup(_("Inbox"));
 792                 break;
 793         case F_OUTBOX:
 794                 xpm = openxpm = outboxxpm;
 795                 mask = openmask = outboxxpmmask;
 796                 name = g_strdup(_("Outbox"));
 797                 break;
 798         case F_QUEUE:
 799                 xpm = openxpm = outboxxpm;
 800                 mask = openmask = outboxxpmmask;
 801                 name = g_strdup(_("Queue"));
 802                 break;
 803         case F_TRASH:
 804                 xpm = openxpm = trashxpm;
 805                 mask = openmask = trashxpmmask;
 806                 name = g_strdup(_("Trash"));
 807                 break;
 808         case F_DRAFT:
 809                 xpm = folderxpm;
 810                 mask = folderxpmmask;
 811                 openxpm = folderopenxpm;
 812                 openmask = folderopenxpmmask;
 813                 name = g_strdup(_("Draft"));
 814                 break;
 815         default:
 816                 xpm = folderxpm;
 817                 mask = folderxpmmask;
 818                 openxpm = folderopenxpm;
 819                 openmask = folderopenxpmmask;
 820                 if (!item->parent) {
 821                         switch (item->folder->type) {
 822                         case F_MH:
 823                                 name = " (MH)"; break;
 824                         case F_MBOX:
 825                                 name = " (mbox)"; break;
 826                         case F_IMAP:
 827                                 name = " (IMAP4)"; break;
 828                         case F_NEWS:
 829                                 name = " (News)"; break;
 830                         default:
 831                                 name = "";
 832                         }
 833                         name = g_strconcat(item->name, name, NULL);
 834                 } else
 835                         name = g_strdup(item->name);
 836         }
 837
 838         if (!GTK_CTREE_ROW(node)->expanded &&
 839             folderview_have_unread_children(folderview, node))
 840                 add_unread_mark = TRUE;
 841         else
 842                 add_unread_mark = FALSE;
 843
 844         if (item->stype == F_QUEUE && item->total > 0 &&
 845             prefs_common.display_folder_unread) {
 846                 str = g_strdup_printf("%s (%d%s)", name, item->total,
 847                                       add_unread_mark ? "+" : "");
 848                 gtk_ctree_set_node_info(ctree, node, str, FOLDER_SPACING,
 849                                         xpm, mask, openxpm, openmask,
 850                                         FALSE, GTK_CTREE_ROW(node)->expanded);
 851                 g_free(str);
 852         } else if ((item->unread > 0 || add_unread_mark) &&
 853                  prefs_common.display_folder_unread) {
 854
 855                 if (item->unread > 0)
 856                         str = g_strdup_printf("%s (%d%s)", name, item->unread,
 857                                               add_unread_mark ? "+" : "");
 858                 else
 859                         str = g_strdup_printf("%s (+)", name);
 860                 gtk_ctree_set_node_info(ctree, node, str, FOLDER_SPACING,
 861                                         xpm, mask, openxpm, openmask,
 862                                         FALSE, GTK_CTREE_ROW(node)->expanded);
 863                 g_free(str);
 864         } else
 865                 gtk_ctree_set_node_info(ctree, node, name, FOLDER_SPACING,
 866                                         xpm, mask, openxpm, openmask,
 867                                         FALSE, GTK_CTREE_ROW(node)->expanded);
 868         g_free(name);
 869
 870         if (!item->parent) {
 871                 gtk_ctree_node_set_text(ctree, node, COL_NEW,    "-");
 872                 gtk_ctree_node_set_text(ctree, node, COL_UNREAD, "-");
 873                 gtk_ctree_node_set_text(ctree, node, COL_TOTAL,  "-");
 874         } else {
 875                 gtk_ctree_node_set_text(ctree, node, COL_NEW,    itos(item->new));
 876                 gtk_ctree_node_set_text(ctree, node, COL_UNREAD, itos(item->unread));
 877                 gtk_ctree_node_set_text(ctree, node, COL_TOTAL,  itos(item->total));
 878         }
 879
 880         ctree_style = gtk_widget_get_style(GTK_WIDGET(ctree));
 881         prev_style = gtk_ctree_node_get_row_style(ctree, node);
 882         if (!prev_style)
 883                 prev_style = ctree_style;
 884         style = gtk_style_copy(prev_style);
 885         if (!style) return;
 886
 887         if (item->stype == F_QUEUE) {
 888                 /* highlight queue folder if there are any messages */
 889                 use_bold = use_color = (item->total > 0);
 890         } else if (item->stype == F_TRASH) {
 891                 /* Never highlight trash */
 892                 use_bold = FALSE;
 893                 use_color = FALSE;
 894         } else {
 895                 /* if unread messages exist, print with bold font */
 896                 use_bold = (item->unread > 0) || add_unread_mark;
 897                 /* if new messages exist, print with colored letter */
 898                 use_color =
 899                         (item->new > 0) ||
 900                         (add_unread_mark &&
 901                          folderview_have_new_children(folderview, node));
 902         }
 903
 904         if (use_bold && boldfont)
 905                 style->font = boldfont;
 906         else
 907                 style->font = normalfont;
 908
 909         if (use_color) {
 910                 style->fg[GTK_STATE_NORMAL]   = folderview->color_new;
 911                 style->fg[GTK_STATE_SELECTED] = folderview->color_new;
 912         } else {
 913                 style->fg[GTK_STATE_NORMAL] =
 914                         ctree_style->fg[GTK_STATE_NORMAL];
 915                 style->fg[GTK_STATE_SELECTED] =
 916                         ctree_style->fg[GTK_STATE_SELECTED];
 917         }
 918
 919         gtk_ctree_node_set_row_style(ctree, node, style);
 920
 921         parent = node;
 922         while ((parent = gtkut_ctree_find_collapsed_parent(ctree, parent))
 923                != NULL)
 924                 folderview_update_node(folderview, parent);
 925 }
 926
 927 void folderview_update_item(FolderItem *item, gboolean update_summary)
 928 {
 929         GList *list;
 930         FolderView *folderview;
 931         GtkCTree *ctree;
 932         GtkCTreeNode *node;
 933
 934         g_return_if_fail(item != NULL);
 935
 936         for (list = folderview_list; list != NULL; list = list->next) {
 937                 folderview = (FolderView *)list->data;
 938                 ctree = GTK_CTREE(folderview->ctree);
 939
 940                 node = gtk_ctree_find_by_row_data(ctree, NULL, item);
 941                 if (node) {
 942                         folderview_update_node(folderview, node);
 943                         if (update_summary && folderview->opened == node)
 944                                 summary_show(folderview->summaryview,
 945                                              item, FALSE);
 946                 }
 947         }
 948 }
 949
 950 static void folderview_update_item_foreach_func(gpointer key, gpointer val,
 951                                                 gpointer data)
 952 {
 953         folderview_update_item((FolderItem *)key, FALSE);
 954 }
 955
 956 void folderview_update_item_foreach(GHashTable *table)
 957 {
 958         g_hash_table_foreach(table, folderview_update_item_foreach_func, NULL);
 959 }
 960
 961 static gboolean folderview_gnode_func(GtkCTree *ctree, guint depth,
 962                                       GNode *gnode, GtkCTreeNode *cnode,
 963                                       gpointer data)
 964 {
 965         FolderView *folderview = (FolderView *)data;
 966         FolderItem *item = FOLDER_ITEM(gnode->data);
 967
 968         g_return_val_if_fail(item != NULL, FALSE);
 969
 970         gtk_ctree_node_set_row_data(ctree, cnode, item);
 971         folderview_update_node(folderview, cnode);
 972
 973         return TRUE;
 974 }
 975
 976 static void folderview_expand_func(GtkCTree *ctree, GtkCTreeNode *node,
 977                                    gpointer data)
 978 {
 979         /* NOTE: data should by FolderView pointer */
 980         if (GTK_CTREE_ROW(node)->children) {
 981                 FolderItem *item = gtk_ctree_node_get_row_data(ctree, node);
 982                 FolderView *view = (FolderView *) data;
 983                 g_return_if_fail(item != NULL);
 984                 g_return_if_fail(view);
 985
 986                 if (!item->collapsed) {
 987                         gtk_ctree_expand(ctree, node);
 988                 }
 989                 else {
 990                         /* if it is collapsed we should update the node,
 991                          * in case one of the children contains unread
 992                          * messages or other visible state things */
 993                         folderview_update_node(view, node);
 994                 }
 995         }
 996 }
 997
 998 #define SET_SPECIAL_FOLDER(ctree, item) \
 999 { \
1000         if (item) { \
1001                 GtkCTreeNode *node, *sibling; \
1002  \
1003                 node = gtk_ctree_find_by_row_data(ctree, root, item); \
1004                 if (!node) \
1005                         g_warning("%s not found.\n", item->path); \
1006                 else { \
1007                         if (!prev) \
1008                                 sibling = GTK_CTREE_ROW(root)->children; \
1009                         else \
1010                                 sibling = GTK_CTREE_ROW(prev)->sibling; \
1011                         if (node != sibling) \
1012                                 gtk_ctree_move(ctree, node, root, sibling); \
1013                 } \
1014  \
1015                 prev = node; \
1016         } \
1017 }
1018
1019 static void folderview_sort_folders(FolderView *folderview, GtkCTreeNode *root,
1020                                     Folder *folder)
1021 {
1022         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
1023         GtkCTreeNode *prev = NULL;
1024
1025         gtk_ctree_sort_recursive(ctree, root);
1026
1027         if (GTK_CTREE_ROW(root)->parent) return;
1028
1029         SET_SPECIAL_FOLDER(ctree, folder->inbox);
1030         SET_SPECIAL_FOLDER(ctree, folder->outbox);
1031         SET_SPECIAL_FOLDER(ctree, folder->draft);
1032         SET_SPECIAL_FOLDER(ctree, folder->queue);
1033         SET_SPECIAL_FOLDER(ctree, folder->trash);
1034 }
1035
1036 static void folderview_append_folder(FolderView *folderview, Folder *folder)
1037 {
1038         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
1039         GtkCTreeNode *root;
1040
1041         g_return_if_fail(folder != NULL);
1042
1043         root = gtk_ctree_insert_gnode(ctree, NULL, NULL, folder->node,
1044                                       folderview_gnode_func, folderview);
1045         gtk_ctree_pre_recursive(ctree, root, folderview_expand_func,
1046                                 folderview);
1047         folderview_sort_folders(folderview, root, folder);
1048 }
1049
1050 void folderview_new_folder(FolderView *folderview)
1051 {
1052         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
1053         FolderItem *item;
1054
1055         if (!folderview->selected) return;
1056
1057         item = gtk_ctree_node_get_row_data(ctree, folderview->selected);
1058         g_return_if_fail(item != NULL);
1059         g_return_if_fail(item->folder != NULL);
1060
1061         switch (item->folder->type) {
1062         case F_MBOX:
1063                 folderview_new_mbox_folder_cb(folderview, 0, NULL);
1064                 break;
1065         case F_MH:
1066         case F_MAILDIR:
1067                 folderview_new_folder_cb(folderview, 0, NULL);
1068                 break;
1069         case F_IMAP:
1070                 folderview_new_imap_folder_cb(folderview, 0, NULL);
1071                 break;
1072         case F_NEWS:
1073         default:
1074                 break;
1075         }
1076 }
1077
1078 void folderview_rename_folder(FolderView *folderview)
1079 {
1080         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
1081         FolderItem *item;
1082
1083         if (!folderview->selected) return;
1084
1085         item = gtk_ctree_node_get_row_data(ctree, folderview->selected);
1086         g_return_if_fail(item != NULL);
1087         g_return_if_fail(item->folder != NULL);
1088         if (!item->path) return;
1089         if (item->stype != F_NORMAL) return;
1090
1091         switch (item->folder->type) {
1092         case F_MBOX:
1093                 folderview_rename_mbox_folder_cb(folderview, 0, NULL);
1094         case F_MH:
1095         case F_MAILDIR:
1096                 folderview_rename_folder_cb(folderview, 0, NULL);
1097                 break;
1098         case F_IMAP:
1099         case F_NEWS:
1100         default:
1101                 break;
1102         }
1103 }
1104
1105 void folderview_delete_folder(FolderView *folderview)
1106 {
1107         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
1108         FolderItem *item;
1109
1110         if (!folderview->selected) return;
1111
1112         item = gtk_ctree_node_get_row_data(ctree, folderview->selected);
1113         g_return_if_fail(item != NULL);
1114         g_return_if_fail(item->folder != NULL);
1115         if (!item->path) return;
1116         if (item->stype != F_NORMAL) return;
1117
1118         switch (item->folder->type) {
1119         case F_MH:
1120         case F_MBOX:
1121         case F_MAILDIR:
1122                 folderview_delete_folder_cb(folderview, 0, NULL);
1123                 break;
1124         case F_IMAP:
1125                 folderview_rm_imap_folder_cb(folderview, 0, NULL);
1126         case F_NEWS:
1127         default:
1128                 break;
1129         }
1130 }
1131
1132
1133 /* callback functions */
1134
1135 static void folderview_button_pressed(GtkWidget *ctree, GdkEventButton *event,
1136                                       FolderView *folderview)
1137 {
1138         GtkCList *clist = GTK_CLIST(ctree);
1139         gint prev_row = -1, row = -1, column = -1;
1140         FolderItem *item;
1141         Folder *folder;
1142
1143         if (!event) return;
1144
1145         if (event->button == 1) {
1146                 folderview->open_folder = TRUE;
1147                 return;
1148         }
1149
1150         if (event->button == 2 || event->button == 3) {
1151                 /* right clicked */
1152                 if (clist->selection) {
1153                         GtkCTreeNode *node;
1154
1155                         node = GTK_CTREE_NODE(clist->selection->data);
1156                         if (node)
1157                                 prev_row = gtkut_ctree_get_nth_from_node
1158                                         (GTK_CTREE(ctree), node);
1159                 }
1160
1161                 if (!gtk_clist_get_selection_info(clist, event->x, event->y,
1162                                                   &row, &column))
1163                         return;
1164                 if (prev_row != row) {
1165                         gtk_clist_unselect_all(clist);
1166                         if (event->button == 2)
1167                                 folderview_select_node
1168                                         (folderview,
1169                                          gtk_ctree_node_nth(GTK_CTREE(ctree),
1170                                                             row));
1171                         else
1172                                 gtk_clist_select_row(clist, row, column);
1173                 }
1174         }
1175
1176         if (event->button != 3) return;
1177
1178         item = gtk_clist_get_row_data(clist, row);
1179         g_return_if_fail(item != NULL);
1180         g_return_if_fail(item->folder != NULL);
1181         folder = item->folder;
1182
1183         menu_set_insensitive_all(GTK_MENU_SHELL(folderview->mail_popup));
1184         menu_set_insensitive_all(GTK_MENU_SHELL(folderview->imap_popup));
1185         menu_set_insensitive_all(GTK_MENU_SHELL(folderview->news_popup));
1186         menu_set_insensitive_all(GTK_MENU_SHELL(folderview->mbox_popup));
1187
1188         if (folder->type == F_MH && item->parent == NULL) {
1189                 menu_set_sensitive(folderview->mail_factory,
1190                                    "/Create new folder...", TRUE);
1191                 menu_set_sensitive(folderview->mail_factory,
1192                                    "/Update folder tree", TRUE);
1193                 menu_set_sensitive(folderview->mail_factory,
1194                                    "/Remove mailbox", TRUE);
1195         } else if (folder->type == F_MH && item->stype != F_NORMAL) {
1196                 menu_set_sensitive(folderview->mail_factory,
1197                                    "/Create new folder...", TRUE);
1198                 menu_set_sensitive(folderview->mail_factory,
1199                                    "/Scoring...", TRUE);
1200         } else if (folder->type == F_MH) {
1201                 menu_set_sensitive(folderview->mail_factory,
1202                                    "/Create new folder...", TRUE);
1203                 menu_set_sensitive(folderview->mail_factory,
1204                                    "/Rename folder...", TRUE);
1205                 menu_set_sensitive(folderview->mail_factory,
1206                                    "/Delete folder", TRUE);
1207                 menu_set_sensitive(folderview->mail_factory,
1208                                    "/Scoring...", TRUE);
1209         } else if (folder->type == F_IMAP && item->parent == NULL) {
1210                 menu_set_sensitive(folderview->imap_factory,
1211                                    "/Create new folder...", TRUE);
1212                 menu_set_sensitive(folderview->imap_factory,
1213                                    "/Update folder tree", TRUE);
1214                 menu_set_sensitive(folderview->imap_factory,
1215                                    "/Remove IMAP4 account", TRUE);
1216         } else if (folder->type == F_IMAP && item->stype != F_NORMAL) {
1217                 menu_set_sensitive(folderview->imap_factory,
1218                                    "/Create new folder...", TRUE);
1219         } else if (folder->type == F_IMAP) {
1220                 menu_set_sensitive(folderview->imap_factory,
1221                                    "/Create new folder...", TRUE);
1222                 menu_set_sensitive(folderview->imap_factory,
1223                                    "/Delete folder", TRUE);
1224                 menu_set_sensitive(folderview->imap_factory,
1225                                    "/Scoring...", TRUE);
1226         } else if (folder->type == F_NEWS && item->parent == NULL) {
1227                 menu_set_sensitive(folderview->news_factory,
1228                                    "/Subscribe to newsgroup...", TRUE);
1229                 menu_set_sensitive(folderview->news_factory,
1230                                    "/Remove news account", TRUE);
1231         } else if (folder->type == F_NEWS) {
1232                 menu_set_sensitive(folderview->news_factory,
1233                                    "/Subscribe to newsgroup...", TRUE);
1234                 menu_set_sensitive(folderview->news_factory,
1235                                    "/Remove newsgroup", TRUE);
1236                 menu_set_sensitive(folderview->news_factory,
1237                                    "/Scoring...", TRUE);
1238         }
1239         if (folder->type == F_MBOX && item->parent == NULL) {
1240                 menu_set_sensitive(folderview->mbox_factory,
1241                                    "/Create new folder...", TRUE);
1242                 menu_set_sensitive(folderview->mbox_factory,
1243                                    "/Remove mailbox", TRUE);
1244         } else if (folder->type == F_MBOX && item->stype != F_NORMAL) {
1245                 menu_set_sensitive(folderview->mbox_factory,
1246                                    "/Create new folder...", TRUE);
1247                 menu_set_sensitive(folderview->mbox_factory,
1248                                    "/Scoring...", TRUE);
1249         } else if (folder->type == F_MBOX) {
1250                 menu_set_sensitive(folderview->mbox_factory,
1251                                    "/Create new folder...", TRUE);
1252                 menu_set_sensitive(folderview->mbox_factory,
1253                                    "/Rename folder...", TRUE);
1254                 menu_set_sensitive(folderview->mbox_factory,
1255                                    "/Delete folder", TRUE);
1256                 menu_set_sensitive(folderview->mbox_factory,
1257                                    "/Scoring...", TRUE);
1258         }
1259
1260         if (folder->type == F_MH)
1261                 gtk_menu_popup(GTK_MENU(folderview->mail_popup), NULL, NULL,
1262                                NULL, NULL, event->button, event->time);
1263         else if (folder->type == F_IMAP)
1264                 gtk_menu_popup(GTK_MENU(folderview->imap_popup), NULL, NULL,
1265                                NULL, NULL, event->button, event->time);
1266         else if (folder->type == F_NEWS)
1267                 gtk_menu_popup(GTK_MENU(folderview->news_popup), NULL, NULL,
1268                                NULL, NULL, event->button, event->time);
1269         else if (folder->type == F_MBOX)
1270                 gtk_menu_popup(GTK_MENU(folderview->mbox_popup), NULL, NULL,
1271                                NULL, NULL, event->button, event->time);
1272 }
1273
1274 static void folderview_button_released(GtkWidget *ctree, GdkEventButton *event,
1275                                        FolderView *folderview)
1276 {
1277         if (!event) return;
1278
1279         if (event->button == 1 && folderview->open_folder == FALSE &&
1280             folderview->opened != NULL) {
1281                 gtk_ctree_select(GTK_CTREE(ctree), folderview->opened);
1282                 gtkut_ctree_set_focus_row(GTK_CTREE(ctree),
1283                                           folderview->opened);
1284         }
1285 }
1286
1287 #define BREAK_ON_MODIFIER_KEY() \
1288         if ((event->state & (GDK_MOD1_MASK|GDK_CONTROL_MASK)) != 0) break
1289
1290 static void folderview_key_pressed(GtkWidget *widget, GdkEventKey *event,
1291                                    FolderView *folderview)
1292 {
1293         if (!event) return;
1294
1295         switch (event->keyval) {
1296         case GDK_Return:
1297         case GDK_space:
1298                 if (folderview->selected) {
1299                         folderview_select_node(folderview,
1300                                                folderview->selected);
1301                 }
1302                 break;
1303         case GDK_v:
1304         case GDK_V:
1305         case GDK_g:
1306         case GDK_G:
1307         case GDK_x:
1308         case GDK_X:
1309         case GDK_w:
1310         case GDK_D:
1311         case GDK_Q:
1312                 BREAK_ON_MODIFIER_KEY();
1313                 summary_pass_key_press_event(folderview->summaryview, event);
1314         default:
1315         }
1316 }
1317
1318 static void folderview_selected(GtkCTree *ctree, GtkCTreeNode *row,
1319                                 gint column, FolderView *folderview)
1320 {
1321         static gboolean can_select = TRUE;      /* exclusive lock */
1322         gboolean opened;
1323         FolderItem *item;
1324
1325         folderview->selected = row;
1326
1327         if (folderview->opened == row) {
1328                 folderview->open_folder = FALSE;
1329                 return;
1330         }
1331
1332         if (!can_select) {
1333                 gtk_ctree_select(ctree, folderview->opened);
1334                 gtkut_ctree_set_focus_row(ctree, folderview->opened);
1335                 return;
1336         }
1337
1338         if (!folderview->open_folder) return;
1339
1340         item = gtk_ctree_node_get_row_data(ctree, row);
1341         if (!item) return;
1342
1343         can_select = FALSE;
1344
1345         if (item->path)
1346                 debug_print(_("Folder %s is selected\n"), item->path);
1347
1348         if (!GTK_CTREE_ROW(row)->children)
1349                 gtk_ctree_expand(ctree, row);
1350         if (folderview->opened &&
1351             !GTK_CTREE_ROW(folderview->opened)->children)
1352                 gtk_ctree_collapse(ctree, folderview->opened);
1353
1354         /* ungrab the mouse event */
1355         if (GTK_WIDGET_HAS_GRAB(ctree)) {
1356                 gtk_grab_remove(GTK_WIDGET(ctree));
1357                 if (gdk_pointer_is_grabbed())
1358                         gdk_pointer_ungrab(GDK_CURRENT_TIME);
1359         }
1360
1361         opened = summary_show(folderview->summaryview, item, FALSE);
1362
1363         if (!opened) {
1364                 gtk_ctree_select(ctree, folderview->opened);
1365                 gtkut_ctree_set_focus_row(ctree, folderview->opened);
1366         } else
1367                 folderview->opened = row;
1368
1369         folderview->open_folder = FALSE;
1370         can_select = TRUE;
1371 }
1372
1373 static void folderview_tree_expanded(GtkCTree *ctree, GtkCTreeNode *node,
1374                                      FolderView *folderview)
1375 {
1376         FolderItem *item = gtk_ctree_node_get_row_data(ctree, node);
1377
1378         g_return_if_fail(item);
1379         item->collapsed = FALSE;
1380         folderview_update_node(folderview, node);
1381 }
1382
1383 static void folderview_tree_collapsed(GtkCTree *ctree, GtkCTreeNode *node,
1384                                       FolderView *folderview)
1385 {
1386         FolderItem *item = gtk_ctree_node_get_row_data(ctree, node);
1387
1388         g_return_if_fail(item);
1389         item->collapsed = TRUE;
1390         folderview_update_node(folderview, node);
1391 }
1392
1393 static void folderview_popup_close(GtkMenuShell *menu_shell,
1394                                    FolderView *folderview)
1395 {
1396         if (!folderview->opened) return;
1397
1398         gtk_ctree_select(GTK_CTREE(folderview->ctree), folderview->opened);
1399         gtkut_ctree_set_focus_row(GTK_CTREE(folderview->ctree),
1400                                   folderview->opened);
1401 }
1402
1403 static void folderview_col_resized(GtkCList *clist, gint column, gint width,
1404                                    FolderView *folderview)
1405 {
1406         switch (column) {
1407         case COL_FOLDER:
1408                 prefs_common.folder_col_folder = width;
1409                 break;
1410         case COL_NEW:
1411                 prefs_common.folder_col_new = width;
1412                 break;
1413         case COL_UNREAD:
1414                 prefs_common.folder_col_unread = width;
1415                 break;
1416         case COL_TOTAL:
1417                 prefs_common.folder_col_total = width;
1418                 break;
1419         default:
1420         }
1421 }
1422
1423 static GtkCTreeNode *folderview_find_by_name(GtkCTree *ctree,
1424                                              GtkCTreeNode *node,
1425                                              const gchar *name)
1426 {
1427         FolderItem *item;
1428
1429         if (!node)
1430                 node = GTK_CTREE_NODE(GTK_CLIST(ctree)->row_list);
1431         if (!node)
1432                 return NULL;
1433
1434         node = GTK_CTREE_ROW(node)->children;
1435
1436         while (node) {
1437                 item = gtk_ctree_node_get_row_data(ctree, node);
1438                 if (!folderview_compare_name(item, name))
1439                         return node;
1440                 node = GTK_CTREE_ROW(node)->sibling;
1441         }
1442
1443         return NULL;
1444 }
1445
1446 static void folderview_update_tree_cb(FolderView *folderview, guint action,
1447                                       GtkWidget *widget)
1448 {
1449         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
1450         FolderItem *item;
1451
1452         if (!folderview->selected) return;
1453
1454         summary_show(folderview->summaryview, NULL, FALSE);
1455
1456         item = gtk_ctree_node_get_row_data(ctree, folderview->selected);
1457         g_return_if_fail(item != NULL);
1458         g_return_if_fail(item->folder != NULL);
1459
1460         folderview_update_tree(item->folder);
1461 }
1462
1463 static void folderview_new_folder_cb(FolderView *folderview, guint action,
1464                                      GtkWidget *widget)
1465 {
1466         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
1467         gchar *text[N_FOLDER_COLS] = {NULL, "0", "0", "0"};
1468         FolderItem *item;
1469         FolderItem *new_item;
1470         gchar *new_folder;
1471         GtkCTreeNode *node;
1472
1473         if (!folderview->selected) return;
1474
1475         item = gtk_ctree_node_get_row_data(ctree, folderview->selected);
1476         g_return_if_fail(item != NULL);
1477         g_return_if_fail(item->folder != NULL);
1478
1479         new_folder = input_dialog(_("New folder"),
1480                                   _("Input the name of new folder:"),
1481                                   _("NewFolder"));
1482         if (!new_folder) return;
1483
1484         if (strchr(new_folder, G_DIR_SEPARATOR) != NULL) {
1485                 alertpanel_error(_("`%c' can't be included in folder name."),
1486                                  G_DIR_SEPARATOR);
1487                 g_free(new_folder);
1488                 return;
1489         }
1490
1491         /* find whether the directory already exists */
1492         if (folderview_find_by_name(ctree, folderview->selected, new_folder)) {
1493                 alertpanel_error(_("The folder `%s' already exists."),
1494                                  new_folder);
1495                 g_free(new_folder);
1496                 return;
1497         }
1498
1499         new_item = item->folder->create_folder(item->folder, item, new_folder);
1500         g_free(new_folder);
1501         if (!new_item) return;
1502
1503         gtk_clist_freeze(GTK_CLIST(ctree));
1504
1505         text[COL_FOLDER] = new_item->name;
1506         node = gtk_ctree_insert_node(ctree, folderview->selected, NULL, text,
1507                                      FOLDER_SPACING,
1508                                      folderxpm, folderxpmmask,
1509                                      folderopenxpm, folderopenxpmmask,
1510                                      FALSE, FALSE);
1511         gtk_ctree_expand(ctree, folderview->selected);
1512         gtk_ctree_node_set_row_data(ctree, node, new_item);
1513         folderview_sort_folders(folderview, folderview->selected, item->folder);
1514
1515         gtk_clist_thaw(GTK_CLIST(ctree));
1516
1517         folder_write_list();
1518 }
1519
1520 static void folderview_new_mbox_folder_cb(FolderView *folderview, guint action,
1521                                           GtkWidget *widget)
1522 {
1523         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
1524         gchar *text[N_FOLDER_COLS] = {NULL, "0", "0", "0"};
1525         FolderItem *item;
1526         FolderItem *new_item;
1527         gchar *new_folder;
1528         GtkCTreeNode *node;
1529
1530         if (!folderview->selected) return;
1531
1532         item = gtk_ctree_node_get_row_data(ctree, folderview->selected);
1533         g_return_if_fail(item != NULL);
1534         g_return_if_fail(item->folder != NULL);
1535
1536         new_folder = input_dialog(_("New folder"),
1537                                   _("Input the name of new folder:"),
1538                                   _("NewFolder"));
1539         if (!new_folder) return;
1540
1541         /* find whether the directory already exists */
1542         if (folderview_find_by_name(ctree, folderview->selected, new_folder)) {
1543                 alertpanel_error(_("The folder `%s' already exists."),
1544                                  new_folder);
1545                 g_free(new_folder);
1546                 return;
1547         }
1548
1549         new_item = item->folder->create_folder(item->folder, item, new_folder);
1550         g_free(new_folder);
1551         if (!new_item) return;
1552
1553         gtk_clist_freeze(GTK_CLIST(ctree));
1554
1555         text[COL_FOLDER] = new_item->name;
1556         node = gtk_ctree_insert_node(ctree, folderview->selected, NULL, text,
1557                                      FOLDER_SPACING,
1558                                      folderxpm, folderxpmmask,
1559                                      folderopenxpm, folderopenxpmmask,
1560                                      FALSE, FALSE);
1561         gtk_ctree_expand(ctree, folderview->selected);
1562         gtk_ctree_node_set_row_data(ctree, node, new_item);
1563         folderview_sort_folders(folderview, folderview->selected, item->folder);
1564
1565         gtk_clist_thaw(GTK_CLIST(ctree));
1566
1567         folder_write_list();
1568 }
1569
1570 static void folderview_rename_folder_cb(FolderView *folderview, guint action,
1571                                         GtkWidget *widget)
1572 {
1573         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
1574         FolderItem *item;
1575         gchar *new_folder;
1576         gchar *message;
1577
1578         if (!folderview->selected) return;
1579
1580         item = gtk_ctree_node_get_row_data(ctree, folderview->selected);
1581         g_return_if_fail(item != NULL);
1582         g_return_if_fail(item->path != NULL);
1583         g_return_if_fail(item->folder != NULL);
1584
1585         message = g_strdup_printf(_("Input new name for `%s':"),
1586                                   g_basename(item->path));
1587         new_folder = input_dialog(_("Rename folder"), message,
1588                                   g_basename(item->path));
1589         g_free(message);
1590         if (!new_folder) return;
1591
1592         if (strchr(new_folder, G_DIR_SEPARATOR) != NULL) {
1593                 alertpanel_error(_("`%c' can't be included in folder name."),
1594                                  G_DIR_SEPARATOR);
1595                 g_free(new_folder);
1596                 return;
1597         }
1598
1599         if (folderview_find_by_name
1600                 (ctree, GTK_CTREE_ROW(folderview->selected)->parent,
1601                  new_folder)) {
1602                 alertpanel_error(_("The folder `%s' already exists."),
1603                                  new_folder);
1604                 g_free(new_folder);
1605                 return;
1606         }
1607
1608         if (item->folder->rename_folder(item->folder, item, new_folder) < 0) {
1609                 g_free(new_folder);
1610                 return;
1611         }
1612         g_free(new_folder);
1613
1614         gtk_clist_freeze(GTK_CLIST(ctree));
1615
1616         folderview_update_node(folderview, folderview->selected);
1617         folderview_sort_folders(folderview,
1618                                 GTK_CTREE_ROW(folderview->selected)->parent,
1619                                 item->folder);
1620         if (folderview->opened == folderview->selected) {
1621                 if (!GTK_CTREE_ROW(folderview->opened)->children)
1622                         gtk_ctree_expand(ctree, folderview->opened);
1623                 summary_show(folderview->summaryview, item, FALSE);
1624         }
1625
1626         gtk_clist_thaw(GTK_CLIST(ctree));
1627
1628         folder_write_list();
1629 }
1630
1631 static void folderview_rename_mbox_folder_cb(FolderView *folderview,
1632                                              guint action,
1633                                              GtkWidget *widget)
1634 {
1635         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
1636         FolderItem *item;
1637         gchar *new_folder;
1638         gchar *message;
1639
1640         if (!folderview->selected) return;
1641
1642         item = gtk_ctree_node_get_row_data(ctree, folderview->selected);
1643         g_return_if_fail(item != NULL);
1644         g_return_if_fail(item->path != NULL);
1645         g_return_if_fail(item->folder != NULL);
1646
1647         message = g_strdup_printf(_("Input new name for `%s':"),
1648                                   g_basename(item->path));
1649         new_folder = input_dialog(_("Rename folder"), message,
1650                                   g_basename(item->path));
1651         g_free(message);
1652         if (!new_folder) return;
1653
1654         if (folderview_find_by_name
1655                 (ctree, GTK_CTREE_ROW(folderview->selected)->parent,
1656                  new_folder)) {
1657                 alertpanel_error(_("The folder `%s' already exists."),
1658                                  new_folder);
1659                 g_free(new_folder);
1660                 return;
1661         }
1662
1663         if (item->folder->rename_folder(item->folder, item, new_folder) < 0) {
1664                 g_free(new_folder);
1665                 return;
1666         }
1667         g_free(new_folder);
1668
1669         gtk_clist_freeze(GTK_CLIST(ctree));
1670
1671         folderview_update_node(folderview, folderview->selected);
1672         folderview_sort_folders(folderview,
1673                                 GTK_CTREE_ROW(folderview->selected)->parent,
1674                                 item->folder);
1675         if (folderview->opened == folderview->selected) {
1676                 if (!GTK_CTREE_ROW(folderview->opened)->children)
1677                         gtk_ctree_expand(ctree, folderview->opened);
1678                 summary_show(folderview->summaryview, item, FALSE);
1679         }
1680
1681         gtk_clist_thaw(GTK_CLIST(ctree));
1682
1683         folder_write_list();
1684 }
1685
1686 static void folderview_delete_folder_cb(FolderView *folderview, guint action,
1687                                         GtkWidget *widget)
1688 {
1689         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
1690         FolderItem *item;
1691         gchar *message;
1692         AlertValue avalue;
1693
1694         if (!folderview->selected) return;
1695
1696         item = gtk_ctree_node_get_row_data(ctree, folderview->selected);
1697         g_return_if_fail(item != NULL);
1698         g_return_if_fail(item->path != NULL);
1699         g_return_if_fail(item->folder != NULL);
1700
1701         message = g_strdup_printf
1702                 (_("All folder(s) and message(s) under `%s' will be deleted.\n"
1703                    "Do you really want to delete?"),
1704                  g_basename(item->path));
1705         avalue = alertpanel(_("Delete folder"), message,
1706                             _("Yes"), _("+No"), NULL);
1707         g_free(message);
1708         if (avalue != G_ALERTDEFAULT) return;
1709
1710         if (item->folder->remove_folder(item->folder, item) < 0) {
1711                 alertpanel_error(_("Can't remove the folder `%s'."),
1712                                  item->path);
1713                 return;
1714         }
1715
1716         if (folderview->opened == folderview->selected ||
1717             gtk_ctree_is_ancestor(ctree,
1718                                   folderview->selected,
1719                                   folderview->opened)) {
1720                 summary_clear_all(folderview->summaryview);
1721                 folderview->opened = NULL;
1722         }
1723
1724         gtk_ctree_remove_node(ctree, folderview->selected);
1725         folder_write_list();
1726 }
1727
1728 static void folderview_remove_mailbox_cb(FolderView *folderview, guint action,
1729                                          GtkWidget *widget)
1730 {
1731         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
1732         GtkCTreeNode *node;
1733         FolderItem *item;
1734         gchar *message;
1735         AlertValue avalue;
1736
1737         if (!folderview->selected) return;
1738         node = folderview->selected;
1739         item = gtk_ctree_node_get_row_data(ctree, node);
1740         g_return_if_fail(item != NULL);
1741         g_return_if_fail(item->folder != NULL);
1742         if (item->parent) return;
1743
1744         message = g_strdup_printf
1745                 (_("Really remove the mailbox `%s' ?\n"
1746                    "(The messages are NOT deleted from disk)"),
1747                  item->folder->name);
1748         avalue = alertpanel(_("Remove folder"), message,
1749                             _("Yes"), _("+No"), NULL);
1750         g_free(message);
1751         if (avalue != G_ALERTDEFAULT) return;
1752
1753         folder_destroy(item->folder);
1754         summary_clear_all(folderview->summaryview);
1755         folderview_unselect(folderview);
1756         gtk_ctree_remove_node(ctree, node);
1757         folder_write_list();
1758 }
1759
1760 static void folderview_new_imap_folder_cb(FolderView *folderview, guint action,
1761                                           GtkWidget *widget)
1762 {
1763         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
1764         gchar *text[N_FOLDER_COLS] = {NULL, "0", "0", "0"};
1765         GtkCTreeNode *node;
1766         FolderItem *item;
1767         FolderItem *new_item;
1768         gchar *new_folder;
1769         gchar *p;
1770
1771         if (!folderview->selected) return;
1772
1773         item = gtk_ctree_node_get_row_data(ctree, folderview->selected);
1774         g_return_if_fail(item != NULL);
1775         g_return_if_fail(item->folder != NULL);
1776         g_return_if_fail(item->folder->type == F_IMAP);
1777         g_return_if_fail(item->folder->account != NULL);
1778
1779         new_folder = input_dialog
1780                 (_("New folder"),
1781                  _("Input the name of new folder:\n"
1782                    "(if you want to create a folder to store subfolders,\n"
1783                    " append `/' at the end of the name)"),
1784                  _("NewFolder"));
1785         if (!new_folder) return;
1786
1787         if ((p = strchr(new_folder, G_DIR_SEPARATOR)) != NULL &&
1788             *(p + 1) != '\0') {
1789                 alertpanel_error(_("`%c' can't be included in folder name."),
1790                                  G_DIR_SEPARATOR);
1791                 g_free(new_folder);
1792                 return;
1793         }
1794
1795         /* find whether the directory already exists */
1796         if (folderview_find_by_name(ctree, folderview->selected, new_folder)) {
1797                 alertpanel_error(_("The folder `%s' already exists."),
1798                                  new_folder);
1799                 g_free(new_folder);
1800                 return;
1801         }
1802
1803         new_item = item->folder->create_folder(item->folder, item, new_folder);
1804         if (!new_item) {
1805                 alertpanel_error(_("Can't create the folder `%s'."),
1806                                  new_folder);
1807                 g_free(new_folder);
1808                 return;
1809         }
1810         g_free(new_folder);
1811
1812         gtk_clist_freeze(GTK_CLIST(ctree));
1813
1814         text[COL_FOLDER] = new_item->name;
1815         node = gtk_ctree_insert_node(ctree, folderview->selected, NULL, text,
1816                                      FOLDER_SPACING,
1817                                      folderxpm, folderxpmmask,
1818                                      folderopenxpm, folderopenxpmmask,
1819                                      FALSE, FALSE);
1820         gtk_ctree_expand(ctree, folderview->selected);
1821         gtk_ctree_node_set_row_data(ctree, node, new_item);
1822         folderview_sort_folders(folderview, folderview->selected, item->folder);
1823
1824         gtk_clist_thaw(GTK_CLIST(ctree));
1825
1826         folder_write_list();
1827 }
1828
1829 static void folderview_rm_imap_folder_cb(FolderView *folderview, guint action,
1830                                          GtkWidget *widget)
1831 {
1832         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
1833         FolderItem *item;
1834         gchar *message;
1835         AlertValue avalue;
1836
1837         if (!folderview->selected) return;
1838
1839         item = gtk_ctree_node_get_row_data(ctree, folderview->selected);
1840         g_return_if_fail(item != NULL);
1841         g_return_if_fail(item->folder != NULL);
1842         g_return_if_fail(item->folder->type == F_IMAP);
1843         g_return_if_fail(item->folder->account != NULL);
1844
1845         message = g_strdup_printf(_("Really delete folder `%s'?"),
1846                                   g_basename(item->path));
1847         avalue = alertpanel(_("Delete folder"), message,
1848                             _("Yes"), _("+No"), NULL);
1849         g_free(message);
1850         if (avalue != G_ALERTDEFAULT) return;
1851
1852         if (item->folder->remove_folder(item->folder, item) < 0) {
1853                 alertpanel_error(_("Can't remove the folder `%s'."),
1854                                  item->path);
1855                 if (folderview->opened == folderview->selected)
1856                         summary_show(folderview->summaryview,
1857                                      folderview->summaryview->folder_item,
1858                                      FALSE);
1859                 return;
1860         }
1861
1862         if (folderview->opened == folderview->selected ||
1863             gtk_ctree_is_ancestor(ctree,
1864                                   folderview->selected,
1865                                   folderview->opened)) {
1866                 summary_clear_all(folderview->summaryview);
1867                 folderview->opened = NULL;
1868         }
1869
1870         gtk_ctree_remove_node(ctree, folderview->selected);
1871         folder_write_list();
1872 }
1873
1874 static void folderview_rm_imap_server_cb(FolderView *folderview, guint action,
1875                                          GtkWidget *widget)
1876 {
1877         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
1878         FolderItem *item;
1879         gchar *message;
1880         AlertValue avalue;
1881
1882         if (!folderview->selected) return;
1883
1884         item = gtk_ctree_node_get_row_data(ctree, folderview->selected);
1885         g_return_if_fail(item != NULL);
1886         g_return_if_fail(item->folder != NULL);
1887         g_return_if_fail(item->folder->type == F_IMAP);
1888         g_return_if_fail(item->folder->account != NULL);
1889
1890         message = g_strdup_printf(_("Really delete IMAP4 account `%s'?"),
1891                                   item->folder->name);
1892         avalue = alertpanel(_("Delete IMAP4 account"), message,
1893                             _("Yes"), _("+No"), NULL);
1894         g_free(message);
1895
1896         if (avalue != G_ALERTDEFAULT) return;
1897
1898         if (folderview->opened == folderview->selected ||
1899             gtk_ctree_is_ancestor(ctree,
1900                                   folderview->selected,
1901                                   folderview->opened)) {
1902                 summary_clear_all(folderview->summaryview);
1903                 folderview->opened = NULL;
1904         }
1905
1906         account_destroy(item->folder->account);
1907         folder_destroy(item->folder);
1908         gtk_ctree_remove_node(ctree, folderview->selected);
1909         account_set_menu();
1910         main_window_reflect_prefs_all();
1911         folder_write_list();
1912 }
1913
1914 static void folderview_new_news_group_cb(FolderView *folderview, guint action,
1915                                          GtkWidget *widget)
1916 {
1917         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
1918         gchar *text[N_FOLDER_COLS] = {NULL, "0", "0", "0"};
1919         GtkCTreeNode *servernode, *node;
1920         FolderItem *item;
1921         FolderItem *newitem;
1922         gchar *new_group;
1923         const gchar *server;
1924
1925         if (!folderview->selected) return;
1926
1927         item = gtk_ctree_node_get_row_data(ctree, folderview->selected);
1928         g_return_if_fail(item != NULL);
1929         g_return_if_fail(item->folder != NULL);
1930         g_return_if_fail(item->folder->type == F_NEWS);
1931         g_return_if_fail(item->folder->account != NULL);
1932
1933         new_group = grouplist_dialog(item);
1934         if (!new_group) return;
1935
1936         if (GTK_CTREE_ROW(folderview->selected)->parent != NULL)
1937                 servernode = GTK_CTREE_ROW(folderview->selected)->parent;
1938         else
1939                 servernode = folderview->selected;
1940
1941         if (folderview_find_by_name(ctree, servernode, new_group)) {
1942                 alertpanel_error(_("The newsgroup `%s' already exists."),
1943                                  new_group);
1944                 g_free(new_group);
1945                 return;
1946         }
1947
1948         gtk_clist_freeze(GTK_CLIST(ctree));
1949
1950         text[COL_FOLDER] = new_group;
1951         node = gtk_ctree_insert_node(ctree, servernode, NULL, text,
1952                                      FOLDER_SPACING,
1953                                      folderxpm, folderxpmmask,
1954                                      folderopenxpm, folderopenxpmmask,
1955                                      FALSE, FALSE);
1956         gtk_ctree_expand(ctree, servernode);
1957
1958         item = gtk_ctree_node_get_row_data(ctree, servernode);
1959         server = item->folder->account->nntp_server;
1960
1961         newitem = folder_item_new(new_group, new_group);
1962         g_free(new_group);
1963         folder_item_append(item, newitem);
1964         gtk_ctree_node_set_row_data(ctree, node, newitem);
1965         gtk_ctree_sort_node(ctree, servernode);
1966
1967         gtk_clist_thaw(GTK_CLIST(ctree));
1968
1969         folder_write_list();
1970 }
1971
1972 static void folderview_rm_news_group_cb(FolderView *folderview, guint action,
1973                                         GtkWidget *widget)
1974 {
1975         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
1976         FolderItem *item;
1977         gchar *message;
1978         AlertValue avalue;
1979
1980         if (!folderview->selected) return;
1981
1982         item = gtk_ctree_node_get_row_data(ctree, folderview->selected);
1983         g_return_if_fail(item != NULL);
1984         g_return_if_fail(item->folder != NULL);
1985         g_return_if_fail(item->folder->type == F_NEWS);
1986         g_return_if_fail(item->folder->account != NULL);
1987
1988         message = g_strdup_printf(_("Really delete newsgroup `%s'?"),
1989                                   g_basename(item->path));
1990         avalue = alertpanel(_("Delete newsgroup"), message,
1991                             _("Yes"), _("+No"), NULL);
1992         g_free(message);
1993         if (avalue != G_ALERTDEFAULT) return;
1994
1995         if (folderview->opened == folderview->selected) {
1996                 summary_clear_all(folderview->summaryview);
1997                 folderview->opened = NULL;
1998         }
1999
2000         folder_item_remove(item);
2001         gtk_ctree_remove_node(ctree, folderview->selected);
2002         folder_write_list();
2003 }
2004
2005 static void folderview_rm_news_server_cb(FolderView *folderview, guint action,
2006                                          GtkWidget *widget)
2007 {
2008         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
2009         FolderItem *item;
2010         gchar *message;
2011         AlertValue avalue;
2012
2013         if (!folderview->selected) return;
2014
2015         item = gtk_ctree_node_get_row_data(ctree, folderview->selected);
2016         g_return_if_fail(item != NULL);
2017         g_return_if_fail(item->folder != NULL);
2018         g_return_if_fail(item->folder->type == F_NEWS);
2019         g_return_if_fail(item->folder->account != NULL);
2020
2021         message = g_strdup_printf(_("Really delete news account `%s'?"),
2022                                   item->folder->name);
2023         avalue = alertpanel(_("Delete news account"), message,
2024                             _("Yes"), _("+No"), NULL);
2025         g_free(message);
2026
2027         if (avalue != G_ALERTDEFAULT) return;
2028
2029         if (folderview->opened == folderview->selected ||
2030             gtk_ctree_is_ancestor(ctree,
2031                                   folderview->selected,
2032                                   folderview->opened)) {
2033                 summary_clear_all(folderview->summaryview);
2034                 folderview->opened = NULL;
2035         }
2036
2037         account_destroy(item->folder->account);
2038         folder_destroy(item->folder);
2039         gtk_ctree_remove_node(ctree, folderview->selected);
2040         account_set_menu();
2041         main_window_reflect_prefs_all();
2042         folder_write_list();
2043 }
2044
2045 static gboolean folderview_drag_motion_cb(GtkWidget      *widget,
2046                                           GdkDragContext *context,
2047                                           gint            x,
2048                                           gint            y,
2049                                           guint           time,
2050                                           FolderView     *folderview)
2051 {
2052         gint row, column;
2053         FolderItem *item, *current_item;
2054         GtkCTreeNode *node = NULL;
2055         gboolean acceptable = FALSE;
2056
2057         if (gtk_clist_get_selection_info(GTK_CLIST(widget),
2058                                          x - 24, y - 24, &row, &column)) {
2059                 node = gtk_ctree_node_nth(GTK_CTREE(widget), row);
2060                 item = gtk_ctree_node_get_row_data(GTK_CTREE(widget), node);
2061                 current_item = folderview->summaryview->folder_item;
2062                 if (item != NULL &&
2063                     item->path != NULL &&
2064                     current_item != NULL &&
2065                     current_item != item) {
2066                         switch (item->folder->type){
2067                         case F_MH:
2068                                 if (current_item->folder->type == F_MH)
2069                                     acceptable = TRUE;
2070                                 break;
2071                         case F_IMAP:
2072                                 if (current_item->folder->account == item->folder->account)
2073                                     acceptable = TRUE;
2074                                 break;
2075                         default:
2076                         }
2077                 }
2078         }
2079
2080         if (acceptable) {
2081                 gtk_ctree_select(GTK_CTREE(widget), node);
2082                 gdk_drag_status(context, context->suggested_action, time);
2083         } else {
2084                 gtk_ctree_select(GTK_CTREE(widget), folderview->opened);
2085                 gdk_drag_status(context, 0, time);
2086         }
2087
2088         return acceptable;
2089 }
2090
2091 static void folderview_drag_leave_cb(GtkWidget      *widget,
2092                                      GdkDragContext *context,
2093                                      guint           time,
2094                                      FolderView     *folderview)
2095 {
2096         gtk_ctree_select(GTK_CTREE(widget), folderview->opened);
2097 }
2098
2099 static void folderview_drag_received_cb(GtkWidget        *widget,
2100                                         GdkDragContext   *drag_context,
2101                                         gint              x,
2102                                         gint              y,
2103                                         GtkSelectionData *data,
2104                                         guint             info,
2105                                         guint             time,
2106                                         FolderView       *folderview)
2107 {
2108         gint row, column;
2109         FolderItem *item;
2110         GtkCTreeNode *node;
2111
2112         if (gtk_clist_get_selection_info(GTK_CLIST(widget),
2113                                          x - 24, y - 24, &row, &column) == 0)
2114                 return;
2115
2116         node = gtk_ctree_node_nth(GTK_CTREE(widget), row);
2117         item = gtk_ctree_node_get_row_data(GTK_CTREE(widget), node);
2118         if (item != NULL) {
2119                 summary_move_selected_to(folderview->summaryview, item);
2120                 gtk_drag_finish(drag_context, TRUE, TRUE, time);
2121         } else
2122                 gtk_drag_finish(drag_context, FALSE, FALSE, time);
2123 }
2124
2125 static gint folderview_compare_name(gconstpointer a, gconstpointer b)
2126 {
2127         const FolderItem *item = a;
2128         const gchar *name = b;
2129
2130         if (!item->path) return -1;
2131         return strcmp2(g_basename(item->path), name);
2132 }
2133
2134 static void folderview_scoring_cb(FolderView *folderview, guint action,
2135                                    GtkWidget *widget)
2136 {
2137         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
2138         FolderItem *item;
2139
2140         if (!folderview->selected) return;
2141
2142         item = gtk_ctree_node_get_row_data(ctree, folderview->selected);
2143         g_return_if_fail(item != NULL);
2144         g_return_if_fail(item->folder != NULL);
2145
2146         prefs_scoring_open(item);
2147 }