src/folderview.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2006 Hiroyuki Yamamoto and the Claws Mail team
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  */
  19
  20 #include "defs.h"
  21
  22 #include <glib.h>
  23 #include <glib/gi18n.h>
  24 #include <gdk/gdkkeysyms.h>
  25 #include <gtk/gtkwidget.h>
  26 #include <gtk/gtkscrolledwindow.h>
  27 #include <gtk/gtkctree.h>
  28 #include <gtk/gtkcontainer.h>
  29 #include <gtk/gtkclist.h>
  30 #include <gtk/gtkstyle.h>
  31 #include <gtk/gtksignal.h>
  32 #include <gtk/gtkmain.h>
  33 #include <gtk/gtkstatusbar.h>
  34 #include <gtk/gtkmenu.h>
  35 #include <gtk/gtkmenuitem.h>
  36 #include <gtk/gtkitemfactory.h>
  37 #include <stdio.h>
  38 #include <string.h>
  39 #include <stdlib.h>
  40
  41 #include "main.h"
  42 #include "mainwindow.h"
  43 #include "folderview.h"
  44 #include "summaryview.h"
  45 #include "summary_search.h"
  46 #include "inputdialog.h"
  47 #include "manage_window.h"
  48 #include "alertpanel.h"
  49 #include "menu.h"
  50 #include "stock_pixmap.h"
  51 #include "procmsg.h"
  52 #include "utils.h"
  53 #include "gtkutils.h"
  54 #include "prefs_common.h"
  55 #include "prefs_account.h"
  56 #include "prefs_filtering.h"
  57 #include "prefs_folder_item.h"
  58 #include "account.h"
  59 #include "folder.h"
  60 #include "foldersel.h"
  61 #include "inc.h"
  62 #include "statusbar.h"
  63 #include "hooks.h"
  64 #include "folderutils.h"
  65 #include "partial_download.h"
  66 #include "prefs_folder_column.h"
  67 #include "filtering.h"
  68 #include "quicksearch.h"
  69 #include "manual.h"
  70 #include "timing.h"
  71
  72 #define COL_FOLDER_WIDTH        150
  73 #define COL_NUM_WIDTH           32
  74
  75 static GList *folderview_list = NULL;
  76
  77 static GtkStyle *normal_style;
  78 static GtkStyle *normal_color_style;
  79 static GtkStyle *bold_style;
  80 static GtkStyle *bold_color_style;
  81 static GtkStyle *bold_tgtfold_style;
  82
  83 static GdkPixmap *inboxxpm;
  84 static GdkBitmap *inboxxpmmask;
  85 static GdkPixmap *inboxhrmxpm;
  86 static GdkBitmap *inboxhrmxpmmask;
  87 static GdkPixmap *inboxopenxpm;
  88 static GdkBitmap *inboxopenxpmmask;
  89 static GdkPixmap *inboxopenhrmxpm;
  90 static GdkBitmap *inboxopenhrmxpmmask;
  91 static GdkPixmap *outboxxpm;
  92 static GdkBitmap *outboxxpmmask;
  93 static GdkPixmap *outboxhrmxpm;
  94 static GdkBitmap *outboxhrmxpmmask;
  95 static GdkPixmap *outboxopenxpm;
  96 static GdkBitmap *outboxopenxpmmask;
  97 static GdkPixmap *outboxopenhrmxpm;
  98 static GdkBitmap *outboxopenhrmxpmmask;
  99 static GdkPixmap *folderxpm;
 100 static GdkBitmap *folderxpmmask;
 101 static GdkPixmap *folderhrmxpm;
 102 static GdkBitmap *folderhrmxpmmask;
 103 static GdkPixmap *folderopenxpm;
 104 static GdkBitmap *folderopenxpmmask;
 105 static GdkPixmap *folderopenhrmxpm;
 106 static GdkBitmap *folderopenhrmxpmmask;
 107 static GdkPixmap *trashopenxpm;
 108 static GdkBitmap *trashopenxpmmask;
 109 static GdkPixmap *trashopenhrmxpm;
 110 static GdkBitmap *trashopenhrmxpmmask;
 111 static GdkPixmap *trashxpm;
 112 static GdkBitmap *trashxpmmask;
 113 static GdkPixmap *trashhrmxpm;
 114 static GdkBitmap *trashhrmxpmmask;
 115 static GdkPixmap *queuexpm;
 116 static GdkBitmap *queuexpmmask;
 117 static GdkPixmap *queuehrmxpm;
 118 static GdkBitmap *queuehrmxpmmask;
 119 static GdkPixmap *queueopenxpm;
 120 static GdkBitmap *queueopenxpmmask;
 121 static GdkPixmap *queueopenhrmxpm;
 122 static GdkBitmap *queueopenhrmxpmmask;
 123 static GdkPixmap *draftsxpm;
 124 static GdkBitmap *draftsxpmmask;
 125 static GdkPixmap *draftsopenxpm;
 126 static GdkBitmap *draftsopenxpmmask;
 127 static GdkPixmap *noselectxpm;
 128 static GdkBitmap *noselectxpmmask;
 129
 130 static GdkPixmap *m_inboxxpm;
 131 static GdkBitmap *m_inboxxpmmask;
 132 static GdkPixmap *m_inboxhrmxpm;
 133 static GdkBitmap *m_inboxhrmxpmmask;
 134 static GdkPixmap *m_inboxopenxpm;
 135 static GdkBitmap *m_inboxopenxpmmask;
 136 static GdkPixmap *m_inboxopenhrmxpm;
 137 static GdkBitmap *m_inboxopenhrmxpmmask;
 138 static GdkPixmap *m_outboxxpm;
 139 static GdkBitmap *m_outboxxpmmask;
 140 static GdkPixmap *m_outboxhrmxpm;
 141 static GdkBitmap *m_outboxhrmxpmmask;
 142 static GdkPixmap *m_outboxopenxpm;
 143 static GdkBitmap *m_outboxopenxpmmask;
 144 static GdkPixmap *m_outboxopenhrmxpm;
 145 static GdkBitmap *m_outboxopenhrmxpmmask;
 146 static GdkPixmap *m_folderxpm;
 147 static GdkBitmap *m_folderxpmmask;
 148 static GdkPixmap *m_folderhrmxpm;
 149 static GdkBitmap *m_folderhrmxpmmask;
 150 static GdkPixmap *m_folderopenxpm;
 151 static GdkBitmap *m_folderopenxpmmask;
 152 static GdkPixmap *m_folderopenhrmxpm;
 153 static GdkBitmap *m_folderopenhrmxpmmask;
 154 static GdkPixmap *m_trashopenxpm;
 155 static GdkBitmap *m_trashopenxpmmask;
 156 static GdkPixmap *m_trashopenhrmxpm;
 157 static GdkBitmap *m_trashopenhrmxpmmask;
 158 static GdkPixmap *m_trashxpm;
 159 static GdkBitmap *m_trashxpmmask;
 160 static GdkPixmap *m_trashhrmxpm;
 161 static GdkBitmap *m_trashhrmxpmmask;
 162 static GdkPixmap *m_queuexpm;
 163 static GdkBitmap *m_queuexpmmask;
 164 static GdkPixmap *m_queuehrmxpm;
 165 static GdkBitmap *m_queuehrmxpmmask;
 166 static GdkPixmap *m_queueopenxpm;
 167 static GdkBitmap *m_queueopenxpmmask;
 168 static GdkPixmap *m_queueopenhrmxpm;
 169 static GdkBitmap *m_queueopenhrmxpmmask;
 170 static GdkPixmap *m_draftsxpm;
 171 static GdkBitmap *m_draftsxpmmask;
 172 static GdkPixmap *m_draftsopenxpm;
 173 static GdkBitmap *m_draftsopenxpmmask;
 174
 175 static GdkPixmap *newxpm;
 176 static GdkBitmap *newxpmmask;
 177 static GdkPixmap *unreadxpm;
 178 static GdkBitmap *unreadxpmmask;
 179 static GdkPixmap *readxpm;
 180 static GdkBitmap *readxpmmask;
 181
 182
 183 static void folderview_select_node       (FolderView    *folderview,
 184                                           GtkCTreeNode  *node);
 185 static void folderview_set_folders       (FolderView    *folderview);
 186 static void folderview_sort_folders      (FolderView    *folderview,
 187                                           GtkCTreeNode  *root,
 188                                           Folder        *folder);
 189 static void folderview_append_folder     (FolderView    *folderview,
 190                                           Folder        *folder);
 191 static void folderview_update_node       (FolderView    *folderview,
 192                                           GtkCTreeNode  *node);
 193
 194 static gint folderview_clist_compare    (GtkCList       *clist,
 195                                          gconstpointer   ptr1,
 196                                          gconstpointer   ptr2);
 197
 198 /* callback functions */
 199 static gboolean folderview_button_pressed       (GtkWidget      *ctree,
 200                                                  GdkEventButton *event,
 201                                                  FolderView     *folderview);
 202 static gboolean folderview_button_released      (GtkWidget      *ctree,
 203                                                  GdkEventButton *event,
 204                                                  FolderView     *folderview);
 205 static gboolean folderview_key_pressed  (GtkWidget      *widget,
 206                                          GdkEventKey    *event,
 207                                          FolderView     *folderview);
 208 static void folderview_selected         (GtkCTree       *ctree,
 209                                          GtkCTreeNode   *row,
 210                                          gint            column,
 211                                          FolderView     *folderview);
 212 static void folderview_tree_expanded    (GtkCTree       *ctree,
 213                                          GtkCTreeNode   *node,
 214                                          FolderView     *folderview);
 215 static void folderview_tree_collapsed   (GtkCTree       *ctree,
 216                                          GtkCTreeNode   *node,
 217                                          FolderView     *folderview);
 218 static void folderview_popup_close      (GtkMenuShell   *menu_shell,
 219                                          FolderView     *folderview);
 220 static void folderview_col_resized      (GtkCList       *clist,
 221                                          gint            column,
 222                                          gint            width,
 223                                          FolderView     *folderview);
 224
 225 static void mark_all_read_cb            (FolderView    *folderview,
 226                                          guint           action,
 227                                          GtkWidget      *widget);
 228
 229 static void folderview_empty_trash_cb   (FolderView     *folderview,
 230                                          guint           action,
 231                                          GtkWidget      *widget);
 232
 233 static void folderview_send_queue_cb    (FolderView     *folderview,
 234                                          guint           action,
 235                                          GtkWidget      *widget);
 236
 237 static void folderview_search_cb        (FolderView     *folderview,
 238                                          guint           action,
 239                                          GtkWidget      *widget);
 240
 241 static void folderview_property_cb      (FolderView     *folderview,
 242                                          guint           action,
 243                                          GtkWidget      *widget);
 244
 245 static gboolean folderview_drag_motion_cb(GtkWidget      *widget,
 246                                           GdkDragContext *context,
 247                                           gint            x,
 248                                           gint            y,
 249                                           guint           time,
 250                                           FolderView     *folderview);
 251 static void folderview_drag_leave_cb     (GtkWidget        *widget,
 252                                           GdkDragContext   *context,
 253                                           guint             time,
 254                                           FolderView       *folderview);
 255 static void folderview_drag_received_cb  (GtkWidget        *widget,
 256                                           GdkDragContext   *drag_context,
 257                                           gint              x,
 258                                           gint              y,
 259                                           GtkSelectionData *data,
 260                                           guint             info,
 261                                           guint             time,
 262                                           FolderView       *folderview);
 263 static void folderview_start_drag        (GtkWidget *widget, gint button, GdkEvent *event,
 264                                           FolderView       *folderview);
 265 static void folderview_drag_data_get     (GtkWidget        *widget,
 266                                           GdkDragContext   *drag_context,
 267                                           GtkSelectionData *selection_data,
 268                                           guint             info,
 269                                           guint             time,
 270                                           FolderView       *folderview);
 271 static void folderview_drag_end_cb       (GtkWidget        *widget,
 272                                           GdkDragContext   *drag_context,
 273                                           FolderView       *folderview);
 274
 275 void folderview_create_folder_node       (FolderView       *folderview,
 276                                           FolderItem       *item);
 277 gboolean folderview_update_folder        (gpointer          source,
 278                                           gpointer          userdata);
 279 gboolean folderview_update_item_claws    (gpointer          source,
 280                                           gpointer          data);
 281 static void folderview_processing_cb(FolderView *folderview, guint action,
 282                                      GtkWidget *widget);
 283 static void folderview_set_sens_and_popup_menu(FolderView *folderview, gint row,
 284                                 GdkEventButton *event);
 285
 286 GHashTable *folderview_popups;
 287
 288 static GtkItemFactoryEntry folderview_common_popup_entries[] =
 289 {
 290         {N_("/Mark all re_ad"),         NULL, mark_all_read_cb, 0, NULL},
 291         {"/---",                        NULL, NULL, 0, "<Separator>"},
 292         {N_("/_Search folder..."),      NULL, folderview_search_cb, 0, NULL},
 293         {N_("/_Properties..."),         NULL, folderview_property_cb, 0, NULL},
 294         {N_("/Process_ing..."),         NULL, folderview_processing_cb, 0, NULL},
 295 };
 296
 297 static GtkItemFactoryEntry folder_view_trash_popup_entries[] = {
 298         {"/------trashsep",             NULL, NULL, 0, "<Separator>"},
 299         {N_("/Empty _trash..."),        NULL, folderview_empty_trash_cb, 0, NULL},
 300 };
 301
 302 static GtkItemFactoryEntry folder_view_queue_popup_entries[] = {
 303         {"/------queuesep",     NULL, NULL, 0, "<Separator>"},
 304         {N_("/Send _queue..."), NULL, folderview_send_queue_cb, 0, NULL},
 305 };
 306
 307
 308 GtkTargetEntry folderview_drag_types[] =
 309 {
 310         {"claws-mail/internal", GTK_TARGET_SAME_APP, TARGET_DUMMY},
 311         {"text/uri-list", 0, TARGET_MAIL_URI_LIST}
 312 };
 313
 314 void folderview_initialize(void)
 315 {
 316         FolderViewPopup *fpopup;
 317         guint i, n_entries;
 318         GSList *entries = NULL;
 319
 320         fpopup = g_new0(FolderViewPopup, 1);
 321
 322         n_entries = sizeof(folderview_common_popup_entries) /
 323                 sizeof(folderview_common_popup_entries[0]);
 324         for (i = 0; i < n_entries; i++)
 325                 entries = g_slist_append(entries, &folderview_common_popup_entries[i]);
 326
 327         fpopup->klass = "common";
 328         fpopup->path = "<CommonFolder>";
 329         fpopup->entries = entries;
 330         fpopup->set_sensitivity = NULL;
 331
 332         folderview_popups = g_hash_table_new(g_str_hash, g_str_equal);
 333         g_hash_table_insert(folderview_popups, "common", fpopup);
 334 }
 335
 336 static GtkItemFactory *create_ifactory(FolderView *folderview, FolderViewPopup *fpopup)
 337 {
 338         GSList *entries;
 339         GtkItemFactory *factory;
 340         FolderViewPopup *fpopup_common;
 341         GtkWidget *popup;
 342
 343         factory = gtk_item_factory_new(GTK_TYPE_MENU, fpopup->path, NULL);
 344         gtk_item_factory_set_translate_func(factory, menu_translate,
 345                                             NULL, NULL);
 346
 347         for (entries = fpopup->entries; entries != NULL; entries = g_slist_next(entries))
 348                 gtk_item_factory_create_item(factory, entries->data, folderview, 1);
 349
 350         fpopup_common = g_hash_table_lookup(folderview_popups, "common");
 351         if (fpopup_common != fpopup)
 352                 for (entries = fpopup_common->entries; entries != NULL; entries = g_slist_next(entries))
 353                         gtk_item_factory_create_item(factory, entries->data, folderview, 1);
 354
 355         popup = gtk_item_factory_get_widget(factory, fpopup->path);
 356         g_signal_connect(G_OBJECT(popup), "selection_done",
 357                          G_CALLBACK(folderview_popup_close),
 358                          folderview);
 359
 360         return factory;
 361 }
 362
 363 static void create_ifactories(gpointer key, gpointer value, gpointer data)
 364 {
 365         FolderView *folderview = data;
 366         FolderViewPopup *fpopup = value;
 367         GtkItemFactory *factory;
 368
 369         factory = create_ifactory(folderview, fpopup);
 370         g_hash_table_insert(folderview->popups, fpopup->klass, factory);
 371 }
 372
 373 static void folderview_column_set_titles(FolderView *folderview)
 374 {
 375         GtkWidget *ctree = folderview->ctree;
 376         GtkWidget *label_new;
 377         GtkWidget *label_unread;
 378         GtkWidget *label_total;
 379         GtkWidget *hbox_new;
 380         GtkWidget *hbox_unread;
 381         GtkWidget *hbox_total;
 382         gint *col_pos = folderview->col_pos;
 383
 384         debug_print("setting titles...\n");
 385         gtk_widget_realize(folderview->ctree);
 386         gtk_widget_show_all(folderview->scrolledwin);
 387
 388         /* CLAWS: titles for "New" and "Unread" show new & unread pixmaps
 389          * instead text (text overflows making them unreadable and ugly) */
 390         stock_pixmap_gdk(ctree, STOCK_PIXMAP_NEW,
 391                          &newxpm, &newxpmmask);
 392         stock_pixmap_gdk(ctree, STOCK_PIXMAP_UNREAD,
 393                          &unreadxpm, &unreadxpmmask);
 394         stock_pixmap_gdk(ctree, STOCK_PIXMAP_READ,
 395                          &readxpm, &readxpmmask);
 396
 397         label_new = gtk_image_new_from_pixmap(newxpm, newxpmmask);
 398         label_unread = gtk_image_new_from_pixmap(unreadxpm, unreadxpmmask);
 399         label_total = gtk_image_new_from_pixmap(readxpm, readxpmmask);
 400
 401         gtk_clist_column_titles_active(GTK_CLIST(ctree));
 402
 403         hbox_new = gtk_hbox_new(FALSE, 4);
 404         hbox_unread = gtk_hbox_new(FALSE, 4);
 405         hbox_total = gtk_hbox_new(FALSE, 4);
 406
 407         /* left justified */
 408         gtk_box_pack_start(GTK_BOX(hbox_new), label_new, TRUE, TRUE, 0);
 409         gtk_misc_set_alignment (GTK_MISC (label_new), 1, 0.5);
 410         gtk_box_pack_start(GTK_BOX(hbox_unread), label_unread, TRUE, TRUE, 0);
 411         gtk_misc_set_alignment (GTK_MISC (label_unread), 1, 0.5);
 412         gtk_box_pack_start(GTK_BOX(hbox_total), label_total, TRUE, TRUE, 0);
 413         gtk_misc_set_alignment (GTK_MISC (label_total), 1, 0.5);
 414
 415         gtk_widget_show_all(hbox_new);
 416         gtk_widget_show_all(hbox_unread);
 417         gtk_widget_show_all(hbox_total);
 418
 419         gtk_clist_set_column_widget(GTK_CLIST(ctree),col_pos[F_COL_NEW],hbox_new);
 420         gtk_clist_set_column_widget(GTK_CLIST(ctree),col_pos[F_COL_UNREAD],hbox_unread);
 421         gtk_clist_set_column_widget(GTK_CLIST(ctree),col_pos[F_COL_TOTAL],hbox_total);
 422
 423         gtk_sctree_set_column_tooltip(GTK_SCTREE(ctree), col_pos[F_COL_NEW], _("New"));
 424         gtk_sctree_set_column_tooltip(GTK_SCTREE(ctree), col_pos[F_COL_UNREAD], _("Unread"));
 425         gtk_sctree_set_column_tooltip(GTK_SCTREE(ctree), col_pos[F_COL_TOTAL], _("Total"));
 426 }
 427
 428 static gboolean folderview_popup_menu(GtkWidget *widget, gpointer data)
 429 {
 430         FolderView *folderview = (FolderView *)data;
 431         GdkEventButton event;
 432         if (folderview_get_selected_item(folderview) == NULL)
 433                 return FALSE;
 434
 435         event.button = 3;
 436         event.time = gtk_get_current_event_time();
 437
 438         folderview_set_sens_and_popup_menu(folderview, -1,
 439                                 &event);
 440
 441         return TRUE;
 442 }
 443
 444
 445 GtkWidget *folderview_ctree_create(FolderView *folderview)
 446 {
 447         GtkWidget *ctree;
 448         gint *col_pos;
 449         FolderColumnState *col_state;
 450         FolderColumnType type;
 451         gchar *titles[N_FOLDER_COLS];
 452         gint i;
 453         GtkWidget *scrolledwin = folderview->scrolledwin;
 454
 455         debug_print("creating tree...\n");
 456         memset(titles, 0, sizeof(titles));
 457
 458         col_state = prefs_folder_column_get_config();
 459         memset(titles, 0, sizeof(titles));
 460
 461         col_pos = folderview->col_pos;
 462
 463         for (i = 0; i < N_FOLDER_COLS; i++) {
 464                 folderview->col_state[i] = col_state[i];
 465                 type = col_state[i].type;
 466                 col_pos[type] = i;
 467         }
 468
 469         titles[col_pos[F_COL_FOLDER]] = _("Folder");
 470         titles[col_pos[F_COL_NEW]]    = _("New");
 471         titles[col_pos[F_COL_UNREAD]] = _("Unread");
 472         /* TRANSLATORS: This in Number sign in American style */
 473         titles[col_pos[F_COL_TOTAL]]  = _("#");
 474
 475         ctree = gtk_sctree_new_with_titles(N_FOLDER_COLS, col_pos[F_COL_FOLDER],
 476                                            titles);
 477
 478         gtk_clist_set_selection_mode(GTK_CLIST(ctree), GTK_SELECTION_BROWSE);
 479         gtk_clist_set_column_justification(GTK_CLIST(ctree), col_pos[F_COL_NEW],
 480                                            GTK_JUSTIFY_RIGHT);
 481         gtk_clist_set_column_justification(GTK_CLIST(ctree),
 482                                            col_pos[F_COL_UNREAD],
 483                                            GTK_JUSTIFY_RIGHT);
 484         gtk_clist_set_column_justification(GTK_CLIST(ctree),
 485                                            col_pos[F_COL_TOTAL],
 486                                            GTK_JUSTIFY_RIGHT);
 487         if (prefs_common.enable_dotted_lines) {
 488                 gtk_ctree_set_line_style(GTK_CTREE(ctree), GTK_CTREE_LINES_DOTTED);
 489                 gtk_ctree_set_expander_style(GTK_CTREE(ctree),
 490                                      GTK_CTREE_EXPANDER_SQUARE);
 491         } else {
 492                 gtk_ctree_set_line_style(GTK_CTREE(ctree), GTK_CTREE_LINES_NONE);
 493                 gtk_ctree_set_expander_style(GTK_CTREE(ctree),
 494                                      GTK_CTREE_EXPANDER_TRIANGLE);
 495         }
 496
 497         gtk_sctree_set_stripes(GTK_SCTREE(ctree), prefs_common.use_stripes_in_summaries);
 498         gtk_sctree_set_recursive_expand(GTK_SCTREE(ctree), FALSE);
 499
 500         gtk_ctree_set_indent(GTK_CTREE(ctree), CTREE_INDENT);
 501         gtk_clist_set_compare_func(GTK_CLIST(ctree), folderview_clist_compare);
 502
 503         /* don't let title buttons take key focus */
 504         for (i = 0; i < N_FOLDER_COLS; i++) {
 505                 GTK_WIDGET_UNSET_FLAGS(GTK_CLIST(ctree)->column[i].button,
 506                                        GTK_CAN_FOCUS);
 507                 gtk_clist_set_column_width(GTK_CLIST(ctree), col_pos[i],
 508                                    prefs_common.folder_col_size[i]);
 509                 gtk_clist_set_column_visibility
 510                         (GTK_CLIST(ctree), i, col_state[i].visible);
 511         }
 512
 513         g_signal_connect(G_OBJECT(ctree), "key_press_event",
 514                          G_CALLBACK(folderview_key_pressed),
 515                          folderview);
 516         g_signal_connect(G_OBJECT(ctree), "button_press_event",
 517                          G_CALLBACK(folderview_button_pressed),
 518                          folderview);
 519         g_signal_connect(G_OBJECT(ctree), "popup-menu",
 520                          G_CALLBACK(folderview_popup_menu), folderview);
 521         g_signal_connect(G_OBJECT(ctree), "button_release_event",
 522                          G_CALLBACK(folderview_button_released),
 523                          folderview);
 524         g_signal_connect(G_OBJECT(ctree), "tree_select_row",
 525                          G_CALLBACK(folderview_selected), folderview);
 526         g_signal_connect(G_OBJECT(ctree), "start_drag",
 527                          G_CALLBACK(folderview_start_drag), folderview);
 528         g_signal_connect(G_OBJECT(ctree), "drag_data_get",
 529                          G_CALLBACK(folderview_drag_data_get),
 530                          folderview);
 531
 532         g_signal_connect_after(G_OBJECT(ctree), "tree_expand",
 533                                G_CALLBACK(folderview_tree_expanded),
 534                                folderview);
 535         g_signal_connect_after(G_OBJECT(ctree), "tree_collapse",
 536                                G_CALLBACK(folderview_tree_collapsed),
 537                                folderview);
 538
 539         g_signal_connect(G_OBJECT(ctree), "resize_column",
 540                          G_CALLBACK(folderview_col_resized),
 541                          folderview);
 542
 543         /* drop callback */
 544         gtk_drag_dest_set(ctree, GTK_DEST_DEFAULT_ALL & ~GTK_DEST_DEFAULT_HIGHLIGHT,
 545                           folderview_drag_types, 2,
 546                           GDK_ACTION_MOVE | GDK_ACTION_COPY | GDK_ACTION_DEFAULT);
 547         g_signal_connect(G_OBJECT(ctree), "drag_motion",
 548                          G_CALLBACK(folderview_drag_motion_cb),
 549                          folderview);
 550         g_signal_connect(G_OBJECT(ctree), "drag_leave",
 551                          G_CALLBACK(folderview_drag_leave_cb),
 552                          folderview);
 553         g_signal_connect(G_OBJECT(ctree), "drag_data_received",
 554                          G_CALLBACK(folderview_drag_received_cb),
 555                          folderview);
 556         g_signal_connect(G_OBJECT(ctree), "drag_end",
 557                          G_CALLBACK(folderview_drag_end_cb),
 558                          folderview);
 559
 560         gtk_container_add(GTK_CONTAINER(scrolledwin), ctree);
 561
 562         return ctree;
 563 }
 564
 565 void folderview_set_column_order(FolderView *folderview)
 566 {
 567         GtkWidget *ctree;
 568         FolderItem *item = folderview_get_selected_item(folderview);
 569         GtkWidget *scrolledwin = folderview->scrolledwin;
 570
 571         debug_print("recreating tree...\n");
 572         gtk_widget_destroy(folderview->ctree);
 573
 574         folderview->ctree = ctree = folderview_ctree_create(folderview);
 575         gtk_scrolled_window_set_hadjustment(GTK_SCROLLED_WINDOW(scrolledwin),
 576                                             GTK_CLIST(ctree)->hadjustment);
 577         gtk_scrolled_window_set_vadjustment(GTK_SCROLLED_WINDOW(scrolledwin),
 578                                             GTK_CLIST(ctree)->vadjustment);
 579         gtk_widget_show(ctree);
 580
 581         folderview_set(folderview);
 582         folderview_column_set_titles(folderview);
 583
 584         folderview_select(folderview,item);
 585 }
 586
 587 FolderView *folderview_create(void)
 588 {
 589         FolderView *folderview;
 590         GtkWidget *scrolledwin;
 591         GtkWidget *ctree;
 592
 593         debug_print("Creating folder view...\n");
 594         folderview = g_new0(FolderView, 1);
 595
 596         scrolledwin = gtk_scrolled_window_new(NULL, NULL);
 597         gtk_scrolled_window_set_policy
 598                 (GTK_SCROLLED_WINDOW(scrolledwin),
 599                  GTK_POLICY_AUTOMATIC,
 600                  prefs_common.folderview_vscrollbar_policy);
 601         gtk_widget_set_size_request(scrolledwin,
 602                              prefs_common.folderview_width,
 603                              prefs_common.folderview_height);
 604
 605         folderview->scrolledwin  = scrolledwin;
 606         ctree = folderview_ctree_create(folderview);
 607
 608         /* create popup factories */
 609         folderview->popups = g_hash_table_new(g_str_hash, g_str_equal);
 610         g_hash_table_foreach(folderview_popups, create_ifactories, folderview);
 611
 612         folderview->ctree        = ctree;
 613
 614         folderview->folder_update_callback_id =
 615                 hooks_register_hook(FOLDER_UPDATE_HOOKLIST, folderview_update_folder, (gpointer) folderview);
 616         folderview->folder_item_update_callback_id =
 617                 hooks_register_hook(FOLDER_ITEM_UPDATE_HOOKLIST, folderview_update_item_claws, (gpointer) folderview);
 618
 619         gtk_widget_show_all(scrolledwin);
 620
 621         folderview->target_list = gtk_target_list_new(folderview_drag_types, 2);
 622         folderview_list = g_list_append(folderview_list, folderview);
 623
 624         return folderview;
 625 }
 626
 627 void folderview_init(FolderView *folderview)
 628 {
 629         GtkWidget *ctree = folderview->ctree;
 630         GdkColor gdk_color;
 631
 632         stock_pixmap_gdk(ctree, STOCK_PIXMAP_INBOX_CLOSE, &inboxxpm, &inboxxpmmask);
 633         stock_pixmap_gdk(ctree, STOCK_PIXMAP_INBOX_CLOSE_HRM, &inboxhrmxpm, &inboxhrmxpmmask);
 634         stock_pixmap_gdk(ctree, STOCK_PIXMAP_INBOX_OPEN, &inboxopenxpm, &inboxopenxpmmask);
 635         stock_pixmap_gdk(ctree, STOCK_PIXMAP_INBOX_OPEN_HRM, &inboxopenhrmxpm, &inboxopenhrmxpmmask);
 636         stock_pixmap_gdk(ctree, STOCK_PIXMAP_OUTBOX_CLOSE, &outboxxpm, &outboxxpmmask);
 637         stock_pixmap_gdk(ctree, STOCK_PIXMAP_OUTBOX_CLOSE_HRM, &outboxhrmxpm, &outboxhrmxpmmask);
 638         stock_pixmap_gdk(ctree, STOCK_PIXMAP_OUTBOX_OPEN, &outboxopenxpm, &outboxopenxpmmask);
 639         stock_pixmap_gdk(ctree, STOCK_PIXMAP_OUTBOX_OPEN_HRM, &outboxopenhrmxpm, &outboxopenhrmxpmmask);
 640         stock_pixmap_gdk(ctree, STOCK_PIXMAP_DIR_CLOSE, &folderxpm, &folderxpmmask);
 641         stock_pixmap_gdk(ctree, STOCK_PIXMAP_DIR_CLOSE_HRM, &folderhrmxpm, &folderhrmxpmmask);
 642         stock_pixmap_gdk(ctree, STOCK_PIXMAP_DIR_OPEN, &folderopenxpm, &folderopenxpmmask);
 643         stock_pixmap_gdk(ctree, STOCK_PIXMAP_DIR_OPEN_HRM, &folderopenhrmxpm, &folderopenhrmxpmmask);
 644         stock_pixmap_gdk(ctree, STOCK_PIXMAP_TRASH_OPEN, &trashopenxpm, &trashopenxpmmask);
 645         stock_pixmap_gdk(ctree, STOCK_PIXMAP_TRASH_OPEN_HRM, &trashopenhrmxpm, &trashopenhrmxpmmask);
 646         stock_pixmap_gdk(ctree, STOCK_PIXMAP_TRASH_CLOSE, &trashxpm, &trashxpmmask);
 647         stock_pixmap_gdk(ctree, STOCK_PIXMAP_TRASH_CLOSE_HRM, &trashhrmxpm, &trashhrmxpmmask);
 648         stock_pixmap_gdk(ctree, STOCK_PIXMAP_QUEUE_CLOSE, &queuexpm, &queuexpmmask);
 649         stock_pixmap_gdk(ctree, STOCK_PIXMAP_QUEUE_CLOSE_HRM, &queuehrmxpm, &queuehrmxpmmask);
 650         stock_pixmap_gdk(ctree, STOCK_PIXMAP_QUEUE_OPEN, &queueopenxpm, &queueopenxpmmask);
 651         stock_pixmap_gdk(ctree, STOCK_PIXMAP_QUEUE_OPEN_HRM, &queueopenhrmxpm, &queueopenhrmxpmmask);
 652         stock_pixmap_gdk(ctree, STOCK_PIXMAP_DRAFTS_CLOSE, &draftsxpm, &draftsxpmmask);
 653         stock_pixmap_gdk(ctree, STOCK_PIXMAP_DRAFTS_OPEN, &draftsopenxpm, &draftsopenxpmmask);
 654         stock_pixmap_gdk(ctree, STOCK_PIXMAP_DIR_NOSELECT, &noselectxpm, &noselectxpmmask);
 655
 656         stock_pixmap_gdk(ctree, STOCK_PIXMAP_INBOX_CLOSE_MARK, &m_inboxxpm, &m_inboxxpmmask);
 657         stock_pixmap_gdk(ctree, STOCK_PIXMAP_INBOX_CLOSE_HRM_MARK, &m_inboxhrmxpm, &m_inboxhrmxpmmask);
 658         stock_pixmap_gdk(ctree, STOCK_PIXMAP_INBOX_OPEN_MARK, &m_inboxopenxpm, &m_inboxopenxpmmask);
 659         stock_pixmap_gdk(ctree, STOCK_PIXMAP_INBOX_OPEN_HRM_MARK, &m_inboxopenhrmxpm, &m_inboxopenhrmxpmmask);
 660         stock_pixmap_gdk(ctree, STOCK_PIXMAP_OUTBOX_CLOSE_MARK, &m_outboxxpm, &m_outboxxpmmask);
 661         stock_pixmap_gdk(ctree, STOCK_PIXMAP_OUTBOX_CLOSE_HRM_MARK, &m_outboxhrmxpm, &m_outboxhrmxpmmask);
 662         stock_pixmap_gdk(ctree, STOCK_PIXMAP_OUTBOX_OPEN_MARK, &m_outboxopenxpm, &m_outboxopenxpmmask);
 663         stock_pixmap_gdk(ctree, STOCK_PIXMAP_OUTBOX_OPEN_HRM_MARK, &m_outboxopenhrmxpm, &m_outboxopenhrmxpmmask);
 664         stock_pixmap_gdk(ctree, STOCK_PIXMAP_DIR_CLOSE_MARK, &m_folderxpm, &m_folderxpmmask);
 665         stock_pixmap_gdk(ctree, STOCK_PIXMAP_DIR_CLOSE_HRM_MARK, &m_folderhrmxpm, &m_folderhrmxpmmask);
 666         stock_pixmap_gdk(ctree, STOCK_PIXMAP_DIR_OPEN_MARK, &m_folderopenxpm, &m_folderopenxpmmask);
 667         stock_pixmap_gdk(ctree, STOCK_PIXMAP_DIR_OPEN_HRM_MARK, &m_folderopenhrmxpm, &m_folderopenhrmxpmmask);
 668         stock_pixmap_gdk(ctree, STOCK_PIXMAP_TRASH_OPEN_MARK, &m_trashopenxpm, &m_trashopenxpmmask);
 669         stock_pixmap_gdk(ctree, STOCK_PIXMAP_TRASH_OPEN_HRM_MARK, &m_trashopenhrmxpm, &m_trashopenhrmxpmmask);
 670         stock_pixmap_gdk(ctree, STOCK_PIXMAP_TRASH_CLOSE_MARK, &m_trashxpm, &m_trashxpmmask);
 671         stock_pixmap_gdk(ctree, STOCK_PIXMAP_TRASH_CLOSE_HRM_MARK, &m_trashhrmxpm, &m_trashhrmxpmmask);
 672         stock_pixmap_gdk(ctree, STOCK_PIXMAP_QUEUE_CLOSE_MARK, &m_queuexpm, &m_queuexpmmask);
 673         stock_pixmap_gdk(ctree, STOCK_PIXMAP_QUEUE_CLOSE_HRM_MARK, &m_queuehrmxpm, &m_queuehrmxpmmask);
 674         stock_pixmap_gdk(ctree, STOCK_PIXMAP_QUEUE_OPEN_MARK, &m_queueopenxpm, &m_queueopenxpmmask);
 675         stock_pixmap_gdk(ctree, STOCK_PIXMAP_QUEUE_OPEN_HRM_MARK, &m_queueopenhrmxpm, &m_queueopenhrmxpmmask);
 676         stock_pixmap_gdk(ctree, STOCK_PIXMAP_DRAFTS_CLOSE_MARK, &m_draftsxpm, &m_draftsxpmmask);
 677         stock_pixmap_gdk(ctree, STOCK_PIXMAP_DRAFTS_OPEN_MARK, &m_draftsopenxpm, &m_draftsopenxpmmask);
 678
 679         if (!normal_style) {
 680                 PangoFontDescription *font_desc;
 681                 normal_style = gtk_style_copy(gtk_widget_get_style(ctree));
 682                 font_desc = pango_font_description_from_string(NORMAL_FONT);
 683                 if (font_desc) {
 684                         if (normal_style->font_desc)
 685                                 pango_font_description_free
 686                                         (normal_style->font_desc);
 687                         normal_style->font_desc = font_desc;
 688                 }
 689                 gtkut_convert_int_to_gdk_color(prefs_common.color_new, &gdk_color);
 690                 normal_color_style = gtk_style_copy(normal_style);
 691                 normal_color_style->fg[GTK_STATE_NORMAL] = gdk_color;
 692
 693                 gtk_widget_set_style(ctree, normal_style);
 694         }
 695
 696         if (!bold_style) {
 697                 gtkut_convert_int_to_gdk_color(prefs_common.color_new, &gdk_color);
 698                 bold_style = gtk_style_copy(gtk_widget_get_style(ctree));
 699                 pango_font_description_set_weight
 700                         (bold_style->font_desc, PANGO_WEIGHT_BOLD);
 701                 bold_color_style = gtk_style_copy(bold_style);
 702                 bold_color_style->fg[GTK_STATE_NORMAL] = gdk_color;
 703
 704                 bold_tgtfold_style = gtk_style_copy(bold_style);
 705                 bold_tgtfold_style->fg[GTK_STATE_NORMAL] = folderview->color_op;
 706         }
 707 }
 708
 709 void folderview_set(FolderView *folderview)
 710 {
 711         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
 712         MainWindow *mainwin = folderview->mainwin;
 713
 714         if (!mainwin)
 715                 return;
 716
 717         debug_print("Setting folder info...\n");
 718         STATUSBAR_PUSH(mainwin, _("Setting folder info..."));
 719
 720         main_window_cursor_wait(mainwin);
 721
 722         folderview->selected = NULL;
 723         folderview->opened = NULL;
 724
 725         gtk_clist_freeze(GTK_CLIST(ctree));
 726         gtk_clist_clear(GTK_CLIST(ctree));
 727         gtk_clist_thaw(GTK_CLIST(ctree));
 728         gtk_clist_freeze(GTK_CLIST(ctree));
 729
 730         folderview_set_folders(folderview);
 731
 732         gtk_clist_thaw(GTK_CLIST(ctree));
 733         main_window_cursor_normal(mainwin);
 734         STATUSBAR_POP(mainwin);
 735 }
 736
 737 void folderview_set_all(void)
 738 {
 739         GList *list;
 740
 741         for (list = folderview_list; list != NULL; list = list->next)
 742                 folderview_set((FolderView *)list->data);
 743 }
 744
 745 void folderview_select(FolderView *folderview, FolderItem *item)
 746 {
 747         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
 748         GtkCTreeNode *node;
 749         GtkCTreeNode *old_selected = folderview->selected;
 750
 751         if (!item) return;
 752
 753         node = gtk_ctree_find_by_row_data(ctree, NULL, item);
 754         if (node) folderview_select_node(folderview, node);
 755
 756         if (old_selected != node)
 757                 folder_update_op_count();
 758 }
 759
 760 static void mark_all_read_cb(FolderView *folderview, guint action,
 761                              GtkWidget *widget)
 762 {
 763         FolderItem *item;
 764         AlertValue val;
 765
 766         item = folderview_get_selected_item(folderview);
 767         if (item == NULL)
 768                 return;
 769
 770         if (folderview->summaryview->folder_item != item
 771         &&  prefs_common.ask_mark_all_read) {
 772                 val = alertpanel_full(_("Mark all as read"),
 773                         _("Do you really want to mark all mails in this "
 774                           "folder as read ?"), GTK_STOCK_NO, GTK_STOCK_YES, NULL,
 775                           TRUE, NULL, ALERT_QUESTION, G_ALERTDEFAULT);
 776
 777                 if ((val & ~G_ALERTDISABLE) != G_ALERTALTERNATE)
 778                         return;
 779                 else if (val & G_ALERTDISABLE)
 780                         prefs_common.ask_mark_all_read = FALSE;
 781         }
 782
 783         summary_lock(folderview->summaryview);
 784         folder_item_update_freeze();
 785         if (folderview->summaryview->folder_item == item)
 786                 summary_freeze(folderview->summaryview);
 787         folderutils_mark_all_read(item);
 788         if (folderview->summaryview->folder_item == item)
 789                 summary_thaw(folderview->summaryview);
 790         folder_item_update_thaw();
 791         summary_unlock(folderview->summaryview);
 792 }
 793
 794 static void folderview_select_node(FolderView *folderview, GtkCTreeNode *node)
 795 {
 796         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
 797
 798         g_return_if_fail(node != NULL);
 799
 800         if (folderview->open_folder) {
 801                 return;
 802         }
 803
 804         folderview->open_folder = TRUE;
 805         gtkut_ctree_set_focus_row(ctree, node);
 806         gtk_ctree_select(ctree, node);
 807         if (folderview->summaryview->folder_item &&
 808             folderview->summaryview->folder_item->total_msgs > 0)
 809                 summary_grab_focus(folderview->summaryview);
 810         else
 811                 gtk_widget_grab_focus(folderview->ctree);
 812
 813         gtkut_ctree_expand_parent_all(ctree, node);
 814 }
 815
 816 void folderview_unselect(FolderView *folderview)
 817 {
 818         if (folderview->opened && !GTK_CTREE_ROW(folderview->opened)->children)
 819                 gtk_ctree_collapse
 820                         (GTK_CTREE(folderview->ctree), folderview->opened);
 821
 822         folderview->selected = folderview->opened = NULL;
 823 }
 824
 825 static GtkCTreeNode *folderview_find_next_marked(GtkCTree *ctree,
 826                                                  GtkCTreeNode *node)
 827 {
 828         FolderItem *item;
 829
 830         if (node)
 831                 node = gtkut_ctree_node_next(ctree, node);
 832         else
 833                 node = GTK_CTREE_NODE(GTK_CLIST(ctree)->row_list);
 834
 835         for (; node != NULL; node = gtkut_ctree_node_next(ctree, node)) {
 836                 item = gtk_ctree_node_get_row_data(ctree, node);
 837                 if (item && item->marked_msgs > 0 && item->stype != F_TRASH)
 838                         return node;
 839         }
 840
 841         return NULL;
 842 }
 843
 844 void folderview_select_next_marked(FolderView *folderview)
 845 {
 846         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
 847         GtkCTreeNode *node = NULL;
 848         SelectOnEntry last_sel = prefs_common.select_on_entry;
 849         gboolean last_open = prefs_common.always_show_msg;
 850
 851         prefs_common.select_on_entry = SELECTONENTRY_MNU;
 852         prefs_common.always_show_msg = TRUE;
 853
 854         if ((node = folderview_find_next_marked(ctree, folderview->opened))
 855             != NULL) {
 856                 folderview_select_node(folderview, node);
 857                 goto out;
 858         }
 859
 860         if (!folderview->opened ||
 861             folderview->opened == GTK_CTREE_NODE(GTK_CLIST(ctree)->row_list)) {
 862                 goto out;
 863         }
 864         /* search again from the first node */
 865         if ((node = folderview_find_next_marked(ctree, NULL)) != NULL)
 866                 folderview_select_node(folderview, node);
 867
 868 out:
 869         prefs_common.select_on_entry = last_sel;
 870         prefs_common.always_show_msg = last_open;
 871 }
 872
 873 static GtkCTreeNode *folderview_find_next_unread(GtkCTree *ctree,
 874                                                  GtkCTreeNode *node)
 875 {
 876         FolderItem *item;
 877
 878         if (node)
 879                 node = gtkut_ctree_node_next(ctree, node);
 880         else
 881                 node = GTK_CTREE_NODE(GTK_CLIST(ctree)->row_list);
 882
 883         for (; node != NULL; node = gtkut_ctree_node_next(ctree, node)) {
 884                 item = gtk_ctree_node_get_row_data(ctree, node);
 885                 if (item && item->unread_msgs > 0 && item->stype != F_TRASH)
 886                         return node;
 887         }
 888
 889         return NULL;
 890 }
 891
 892 void folderview_select_next_unread(FolderView *folderview, gboolean force_open)
 893 {
 894         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
 895         GtkCTreeNode *node = NULL;
 896         SelectOnEntry last_sel = prefs_common.select_on_entry;
 897         gboolean last_open = prefs_common.always_show_msg;
 898
 899         prefs_common.select_on_entry = SELECTONENTRY_UNM;
 900         prefs_common.always_show_msg = force_open ? TRUE : last_open;
 901
 902         if ((node = folderview_find_next_unread(ctree, folderview->opened))
 903             != NULL) {
 904                 folderview_select_node(folderview, node);
 905                 goto out;
 906         }
 907
 908         if (!folderview->opened ||
 909             folderview->opened == GTK_CTREE_NODE(GTK_CLIST(ctree)->row_list)) {
 910                 goto out;
 911         }
 912         /* search again from the first node */
 913         if ((node = folderview_find_next_unread(ctree, NULL)) != NULL)
 914                 folderview_select_node(folderview, node);
 915
 916 out:
 917         prefs_common.select_on_entry = last_sel;
 918         prefs_common.always_show_msg = last_open;
 919 }
 920
 921 static GtkCTreeNode *folderview_find_next_new(GtkCTree *ctree,
 922                                                  GtkCTreeNode *node)
 923 {
 924         FolderItem *item;
 925
 926         if (node)
 927                 node = gtkut_ctree_node_next(ctree, node);
 928         else
 929                 node = GTK_CTREE_NODE(GTK_CLIST(ctree)->row_list);
 930
 931         for (; node != NULL; node = gtkut_ctree_node_next(ctree, node)) {
 932                 item = gtk_ctree_node_get_row_data(ctree, node);
 933                 if (item && item->new_msgs > 0 && item->stype != F_TRASH)
 934                         return node;
 935         }
 936
 937         return NULL;
 938 }
 939
 940 void folderview_select_next_new(FolderView *folderview)
 941 {
 942         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
 943         GtkCTreeNode *node = NULL;
 944         SelectOnEntry last_sel = prefs_common.select_on_entry;
 945         gboolean last_open = prefs_common.always_show_msg;
 946
 947         prefs_common.select_on_entry = SELECTONENTRY_NUM;
 948         prefs_common.always_show_msg = TRUE;
 949
 950         if ((node = folderview_find_next_new(ctree, folderview->opened))
 951             != NULL) {
 952                 folderview_select_node(folderview, node);
 953                 goto out;
 954         }
 955
 956         if (!folderview->opened ||
 957             folderview->opened == GTK_CTREE_NODE(GTK_CLIST(ctree)->row_list)) {
 958                 goto out;
 959         }
 960         /* search again from the first node */
 961         if ((node = folderview_find_next_new(ctree, NULL)) != NULL)
 962                 folderview_select_node(folderview, node);
 963
 964 out:
 965         prefs_common.select_on_entry = last_sel;
 966         prefs_common.always_show_msg = last_open;
 967 }
 968
 969 FolderItem *folderview_get_selected_item(FolderView *folderview)
 970 {
 971         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
 972
 973         if (!folderview->selected) return NULL;
 974         return gtk_ctree_node_get_row_data(ctree, folderview->selected);
 975 }
 976
 977 void folderview_update_msg_num(FolderView *folderview, GtkCTreeNode *row)
 978 {
 979         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
 980         static GtkCTreeNode *prev_row = NULL;
 981         FolderItem *item;
 982         gint new, unread, total;
 983         gchar *new_str, *unread_str, *total_str;
 984         gint *col_pos = folderview->col_pos;
 985
 986         if (!row) return;
 987
 988         item = gtk_ctree_node_get_row_data(ctree, row);
 989         if (!item) return;
 990
 991         gtk_ctree_node_get_text(ctree, row, col_pos[F_COL_NEW], &new_str);
 992         gtk_ctree_node_get_text(ctree, row, col_pos[F_COL_UNREAD], &unread_str);
 993         gtk_ctree_node_get_text(ctree, row, col_pos[F_COL_TOTAL], &total_str);
 994         new = atoi(new_str);
 995         unread = atoi(unread_str);
 996         total = atoi(total_str);
 997
 998         prev_row = row;
 999
1000         folderview_update_node(folderview, row);
1001 }
1002
1003 void folderview_append_item(FolderItem *item)
1004 {
1005         GList *list;
1006
1007         g_return_if_fail(item != NULL);
1008         g_return_if_fail(item->folder != NULL);
1009         if (folder_item_parent(item)) return;
1010
1011         for (list = folderview_list; list != NULL; list = list->next) {
1012                 FolderView *folderview = (FolderView *)list->data;
1013                 GtkCTree *ctree = GTK_CTREE(folderview->ctree);
1014                 GtkCTreeNode *node, *child;
1015                 gint *col_pos = folderview->col_pos;
1016
1017                 node = gtk_ctree_find_by_row_data(ctree, NULL,
1018                                                   folder_item_parent(item));
1019                 if (node) {
1020                         child = gtk_ctree_find_by_row_data(ctree, node, item);
1021                         if (!child) {
1022                                 gchar *text[N_FOLDER_COLS] =
1023                                         {NULL, "0", "0", "0"};
1024
1025                                 gtk_clist_freeze(GTK_CLIST(ctree));
1026
1027                                 text[col_pos[F_COL_FOLDER]] = item->name;
1028                                 child = gtk_sctree_insert_node
1029                                         (ctree, node, NULL, text,
1030                                          FOLDER_SPACING,
1031                                          folderxpm, folderxpmmask,
1032                                          folderopenxpm, folderopenxpmmask,
1033                                          FALSE, FALSE);
1034                                 gtk_ctree_node_set_row_data(ctree, child, item);
1035                                 gtk_ctree_expand(ctree, node);
1036                                 folderview_update_node(folderview, child);
1037                                 folderview_sort_folders(folderview, node,
1038                                                         item->folder);
1039
1040                                 gtk_clist_thaw(GTK_CLIST(ctree));
1041                         }
1042                 }
1043         }
1044 }
1045
1046 static void folderview_set_folders(FolderView *folderview)
1047 {
1048         GList *list;
1049         list = folder_get_list();
1050
1051         for (; list != NULL; list = list->next) {
1052                 folderview_append_folder(folderview, FOLDER(list->data));
1053         }
1054 }
1055
1056 static gchar *get_scan_str(FolderItem *item)
1057 {
1058         if (item->path)
1059                 return g_strdup_printf(_("Scanning folder %s%c%s ..."),
1060                                       item->folder->name, G_DIR_SEPARATOR,
1061                                       item->path);
1062         else
1063                 return g_strdup_printf(_("Scanning folder %s ..."),
1064                                       item->folder->name);
1065 }
1066 static void folderview_scan_tree_func(Folder *folder, FolderItem *item,
1067                                       gpointer data)
1068 {
1069         GList *list;
1070         for (list = folderview_list; list != NULL; list = list->next) {
1071                 FolderView *folderview = (FolderView *)list->data;
1072                 MainWindow *mainwin = folderview->mainwin;
1073                 gchar *str = get_scan_str(item);
1074
1075                 STATUSBAR_PUSH(mainwin, str);
1076                 STATUSBAR_POP(mainwin);
1077                 g_free(str);
1078         }
1079 }
1080
1081 void folderview_rescan_tree(Folder *folder, gboolean rebuild)
1082 {
1083         GtkWidget *window;
1084
1085         g_return_if_fail(folder != NULL);
1086
1087         if (!folder->klass->scan_tree) return;
1088
1089         if (rebuild &&
1090             alertpanel_full(_("Rebuild folder tree"),
1091                          _("Rebuilding the folder tree will remove "
1092                            "local caches. Do you want to continue?"),
1093                          GTK_STOCK_NO, GTK_STOCK_YES, NULL, FALSE,
1094                          NULL, ALERT_WARNING, G_ALERTDEFAULT)
1095                 != G_ALERTALTERNATE) {
1096                 return;
1097         }
1098
1099         inc_lock();
1100         if (rebuild)
1101                 window = label_window_create(_("Rebuilding folder tree..."));
1102         else
1103                 window = label_window_create(_("Scanning folder tree..."));
1104
1105         folder_set_ui_func(folder, folderview_scan_tree_func, NULL);
1106         folder_scan_tree(folder, rebuild);
1107         folder_set_ui_func(folder, NULL, NULL);
1108
1109         folderview_set_all();
1110
1111         gtk_widget_destroy(window);
1112         inc_unlock();
1113 }
1114
1115 /** folderview_check_new()
1116  *  Scan and update the folder and return the
1117  *  count the number of new messages since last check.
1118  *  \param folder the folder to check for new messages
1119  *  \return the number of new messages since last check
1120  */
1121 gint folderview_check_new(Folder *folder)
1122 {
1123         GList *list;
1124         FolderItem *item;
1125         FolderView *folderview;
1126         GtkCTree *ctree;
1127         GtkCTreeNode *node;
1128         gint new_msgs = 0;
1129         gint former_new_msgs = 0;
1130         gint former_new = 0, former_unread = 0, former_total;
1131
1132         for (list = folderview_list; list != NULL; list = list->next) {
1133                 folderview = (FolderView *)list->data;
1134                 ctree = GTK_CTREE(folderview->ctree);
1135
1136                 inc_lock();
1137                 main_window_lock(folderview->mainwin);
1138
1139                 for (node = GTK_CTREE_NODE(GTK_CLIST(ctree)->row_list);
1140                      node != NULL; node = gtkut_ctree_node_next(ctree, node)) {
1141                         gchar *str = NULL;
1142                         item = gtk_ctree_node_get_row_data(ctree, node);
1143                         if (!item || !item->path || !item->folder) continue;
1144                         if (item->no_select) continue;
1145                         if (folder && folder != item->folder) continue;
1146                         if (!folder && !FOLDER_IS_LOCAL(item->folder)) continue;
1147                         if (!item->prefs->newmailcheck) continue;
1148                         if (item->processing_pending == TRUE) {
1149                                 debug_print("skipping %s, processing pending\n",
1150                                         item->path ? item->path : item->name);
1151                                 continue;
1152                         }
1153
1154                         str = get_scan_str(item);
1155
1156                         STATUSBAR_PUSH(folderview->mainwin, str);
1157                         GTK_EVENTS_FLUSH();
1158                         g_free(str);
1159
1160                         folderview_scan_tree_func(item->folder, item, NULL);
1161                         former_new    = item->new_msgs;
1162                         former_unread = item->unread_msgs;
1163                         former_total  = item->total_msgs;
1164
1165                         if (item->folder->klass->scan_required &&
1166                             (item->folder->klass->scan_required(item->folder, item) ||
1167                              item->folder->inbox == item ||
1168                              item->opened == TRUE ||
1169                              item->processing_pending == TRUE)) {
1170                                 if (folder_item_scan(item) < 0) {
1171                                         if (folder) {
1172                                                 summaryview_unlock(folderview->summaryview, item);
1173                                                 if (FOLDER_TYPE(item->folder) == F_NEWS || FOLDER_IS_LOCAL(folder)) {
1174                                                         log_error(_("Couldn't scan folder %s\n"),
1175                                                                 item->path ? item->path:item->name);
1176                                                         continue;
1177                                                 } else if (!FOLDER_IS_LOCAL(folder)) {
1178                                                         STATUSBAR_POP(folderview->mainwin);
1179                                                         break;
1180                                                 }
1181                                         }
1182                                 }
1183                         } else if (!item->folder->klass->scan_required) {
1184                                 if (folder_item_scan(item) < 0) {
1185                                         summaryview_unlock(folderview->summaryview, item);
1186                                         if (folder && !FOLDER_IS_LOCAL(folder)) {
1187                                                 STATUSBAR_POP(folderview->mainwin);
1188                                                 break;
1189                                         }
1190                                 }
1191                         }
1192                         if (former_new    != item->new_msgs ||
1193                             former_unread != item->unread_msgs ||
1194                             former_total  != item->total_msgs)
1195                                 folderview_update_node(folderview, node);
1196
1197                         new_msgs += item->new_msgs;
1198                         former_new_msgs += former_new;
1199                         STATUSBAR_POP(folderview->mainwin);
1200                 }
1201
1202                 main_window_unlock(folderview->mainwin);
1203                 inc_unlock();
1204         }
1205
1206         folder_write_list();
1207         /* Number of new messages since last check is the just the difference
1208          * between former_new_msgs and new_msgs. If new_msgs is less than
1209          * former_new_msgs, that would mean another session accessed the folder
1210          * and the result is not well defined.
1211          */
1212         new_msgs = (former_new_msgs < new_msgs ? new_msgs - former_new_msgs : 0);
1213         return new_msgs;
1214 }
1215
1216 void folderview_check_new_all(void)
1217 {
1218         GList *list;
1219         GtkWidget *window;
1220         FolderView *folderview;
1221
1222         folderview = (FolderView *)folderview_list->data;
1223
1224         inc_lock();
1225         main_window_lock(folderview->mainwin);
1226         window = label_window_create
1227                 (_("Checking for new messages in all folders..."));
1228
1229         list = folder_get_list();
1230         for (; list != NULL; list = list->next) {
1231                 Folder *folder = list->data;
1232
1233                 folderview_check_new(folder);
1234         }
1235
1236         folder_write_list();
1237         folderview_set_all();
1238
1239         gtk_widget_destroy(window);
1240         main_window_unlock(folderview->mainwin);
1241         inc_unlock();
1242 }
1243
1244 static gboolean folderview_have_new_children_sub(FolderView *folderview,
1245                                                  FolderItem *item,
1246                                                  gboolean in_sub)
1247 {
1248         GNode *node = NULL;
1249
1250         if (!item || !item->folder || !item->folder->node)
1251                 return FALSE;
1252
1253         node = item->folder->node;
1254
1255         node = g_node_find(node, G_PRE_ORDER, G_TRAVERSE_ALL, item);
1256         node = node->children;
1257
1258         if (in_sub &&
1259             (item->new_msgs > 0 ||
1260             (folder_has_parent_of_type(item, F_QUEUE) && item->total_msgs > 0))) {
1261                 return TRUE;
1262         }
1263
1264         while (node != NULL) {
1265                 if (node && node->data) {
1266                         FolderItem *next_item = (FolderItem*) node->data;
1267                         node = node->next;
1268                         if (folderview_have_new_children_sub(folderview,
1269                                                              next_item, TRUE))
1270                                 return TRUE;
1271                 }
1272         }
1273
1274         return FALSE;
1275 }
1276
1277 static gboolean folderview_have_new_children(FolderView *folderview,
1278                                              FolderItem *item)
1279 {
1280         return folderview_have_new_children_sub(folderview, item, FALSE);
1281 }
1282
1283 static gboolean folderview_have_unread_children_sub(FolderView *folderview,
1284                                                     FolderItem *item,
1285                                                     gboolean in_sub)
1286 {
1287         GNode *node = NULL;
1288
1289         if (!item || !item->folder || !item->folder->node)
1290                 return FALSE;
1291
1292         node = item->folder->node;
1293
1294         node = g_node_find(node, G_PRE_ORDER, G_TRAVERSE_ALL, item);
1295         node = node->children;
1296
1297         if (in_sub &&
1298             (item->unread_msgs > 0 ||
1299             (folder_has_parent_of_type(item, F_QUEUE) && item->total_msgs > 0))) {
1300                 return TRUE;
1301         }
1302
1303         while (node != NULL) {
1304                 if (node && node->data) {
1305                         FolderItem *next_item = (FolderItem*) node->data;
1306                         node = node->next;
1307                         if (folderview_have_unread_children_sub(folderview,
1308                                                                 next_item,
1309                                                                 TRUE))
1310                                 return TRUE;
1311                 }
1312         }
1313
1314         return FALSE;
1315 }
1316
1317 static gboolean folderview_have_unread_children(FolderView *folderview,
1318                                                 FolderItem *item)
1319 {
1320         return folderview_have_unread_children_sub(folderview, item, FALSE);
1321 }
1322
1323 static gboolean folderview_have_matching_children_sub(FolderView *folderview,
1324                                                       FolderItem *item,
1325                                                       gboolean in_sub)
1326 {
1327         GNode *node = NULL;
1328
1329         if (!item || !item->folder || !item->folder->node)
1330                 return FALSE;
1331
1332         node = item->folder->node;
1333
1334         node = g_node_find(node, G_PRE_ORDER, G_TRAVERSE_ALL, item);
1335         node = node->children;
1336
1337         if (in_sub && item->search_match){
1338                 return TRUE;
1339         }
1340
1341         while (node != NULL) {
1342                 if (node && node->data) {
1343                         FolderItem *next_item = (FolderItem*) node->data;
1344                         node = node->next;
1345                         if (folderview_have_matching_children_sub(folderview,
1346                                                                   next_item,
1347                                                                   TRUE))
1348                                 return TRUE;
1349                 }
1350         }
1351
1352         return FALSE;
1353 }
1354
1355 static gboolean folderview_have_matching_children(FolderView *folderview,
1356                                                   FolderItem *item)
1357 {
1358         return folderview_have_matching_children_sub(folderview, item, FALSE);
1359 }
1360
1361 static gboolean folderview_have_marked_children_sub(FolderView *folderview,
1362                                                     FolderItem *item,
1363                                                     gboolean in_sub)
1364 {
1365         GNode *node = NULL;
1366
1367         if (!item || !item->folder || !item->folder->node)
1368                 return FALSE;
1369
1370         node = item->folder->node;
1371
1372         node = g_node_find(node, G_PRE_ORDER, G_TRAVERSE_ALL, item);
1373         node = node->children;
1374
1375         if (item->marked_msgs != 0) {
1376                 return TRUE;
1377         }
1378
1379         while (node != NULL) {
1380                 if (node && node->data) {
1381                         FolderItem *next_item = (FolderItem*) node->data;
1382                         node = node->next;
1383                         if (folderview_have_marked_children_sub(folderview,
1384                                                                 next_item, TRUE))
1385                                 return TRUE;
1386                 }
1387         }
1388
1389         return FALSE;
1390 }
1391
1392 static gboolean folderview_have_marked_children(FolderView *folderview,
1393                                              FolderItem *item)
1394 {
1395         return folderview_have_marked_children_sub(folderview, item, FALSE);
1396 }
1397
1398 static void folderview_update_node(FolderView *folderview, GtkCTreeNode *node)
1399 {
1400         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
1401         GtkStyle *style = NULL;
1402         GtkStyle *color_style = NULL;
1403         FolderItem *item;
1404         GdkPixmap *xpm, *openxpm;
1405         GdkBitmap *mask, *openmask;
1406         static GdkPixmap *searchicon;
1407         static GdkBitmap *searchmask;
1408         gboolean mark = FALSE;
1409         gchar *name;
1410         gchar *str;
1411         gboolean add_unread_mark;
1412         gboolean add_sub_match_mark;
1413         gboolean use_bold, use_color;
1414         gint *col_pos = folderview->col_pos;
1415         SpecialFolderItemType stype;
1416
1417         item = gtk_ctree_node_get_row_data(ctree, node);
1418         g_return_if_fail(item != NULL);
1419
1420         if (!GTK_CTREE_ROW(node)->expanded)
1421                 mark = folderview_have_marked_children(folderview, item);
1422         else
1423                 mark = (item->marked_msgs != 0);
1424
1425         stype = item->stype;
1426         if (stype == F_NORMAL) {
1427                 if (folder_has_parent_of_type(item, F_TRASH))
1428                         stype = F_TRASH;
1429                 else if (folder_has_parent_of_type(item, F_DRAFT))
1430                         stype = F_DRAFT;
1431                 else if (folder_has_parent_of_type(item, F_OUTBOX))
1432                         stype = F_OUTBOX;
1433                 else if (folder_has_parent_of_type(item, F_QUEUE))
1434                         stype = F_QUEUE;
1435         }
1436         switch (stype) {
1437         case F_INBOX:
1438                 if (item->hide_read_msgs) {
1439                         xpm = mark?m_inboxhrmxpm:inboxhrmxpm;
1440                         mask = mark?m_inboxhrmxpmmask:inboxhrmxpmmask;
1441                         openxpm = mark?m_inboxopenhrmxpm:inboxopenhrmxpm;
1442                         openmask = mark?m_inboxopenhrmxpmmask:inboxopenhrmxpmmask;
1443                 } else {
1444                         xpm = mark?m_inboxxpm:inboxxpm;
1445                         mask = mark?m_inboxxpmmask:inboxxpmmask;
1446                         openxpm = mark?m_inboxopenxpm:inboxopenxpm;
1447                         openmask = mark?m_inboxopenxpmmask:inboxopenxpmmask;
1448                 }
1449                 break;
1450         case F_OUTBOX:
1451                 if (item->hide_read_msgs) {
1452                         xpm = mark?m_outboxhrmxpm:outboxhrmxpm;
1453                         mask = mark?m_outboxhrmxpmmask:outboxhrmxpmmask;
1454                         openxpm = mark?m_outboxopenhrmxpm:outboxopenhrmxpm;
1455                         openmask = mark?m_outboxopenhrmxpmmask:outboxopenhrmxpmmask;
1456                 } else {
1457                         xpm = mark?m_outboxxpm:outboxxpm;
1458                         mask = mark?m_outboxxpmmask:outboxxpmmask;
1459                         openxpm = mark?m_outboxopenxpm:outboxopenxpm;
1460                         openmask = mark?m_outboxopenxpmmask:outboxopenxpmmask;
1461                 }
1462                 break;
1463         case F_QUEUE:
1464                 if (item->hide_read_msgs) {
1465                         xpm = mark?m_queuehrmxpm:queuehrmxpm;
1466                         mask = mark?m_queuehrmxpmmask:queuehrmxpmmask;
1467                         openxpm = mark?m_queueopenhrmxpm:queueopenhrmxpm;
1468                         openmask = mark?m_queueopenhrmxpmmask:queueopenhrmxpmmask;
1469                 } else {
1470                         xpm = mark?m_queuexpm:queuexpm;
1471                         mask = mark?m_queuexpmmask:queuexpmmask;
1472                         openxpm = mark?m_queueopenxpm:queueopenxpm;
1473                         openmask = mark?m_queueopenxpmmask:queueopenxpmmask;
1474                 }
1475                 break;
1476         case F_TRASH:
1477                 if (item->hide_read_msgs) {
1478                         xpm = mark?m_trashhrmxpm:trashhrmxpm;
1479                         mask = mark?m_trashhrmxpmmask:trashhrmxpmmask;
1480                         openxpm = mark?m_trashopenhrmxpm:trashopenhrmxpm;
1481                         openmask = mark?m_trashopenhrmxpmmask:trashopenhrmxpmmask;
1482                 } else {
1483                         xpm = mark?m_trashxpm:trashxpm;
1484                         mask = mark?m_trashxpmmask:trashxpmmask;
1485                         openxpm = mark?m_trashopenxpm:trashopenxpm;
1486                         openmask = mark?m_trashopenxpmmask:trashopenxpmmask;
1487                 }
1488                 break;
1489         case F_DRAFT:
1490                 xpm = mark?m_draftsxpm:draftsxpm;
1491                 mask = mark?m_draftsxpmmask:draftsxpmmask;
1492                 openxpm = mark?m_draftsopenxpm:draftsopenxpm;
1493                 openmask = mark?m_draftsopenxpmmask:draftsopenxpmmask;
1494                 break;
1495         default:
1496                 if (item->hide_read_msgs) {
1497                         xpm = mark?m_folderhrmxpm:folderhrmxpm;
1498                         mask = mark?m_folderhrmxpmmask:folderhrmxpmmask;
1499                         openxpm = mark?m_folderopenhrmxpm:folderopenhrmxpm;
1500                         openmask = mark?m_folderopenhrmxpmmask:folderopenhrmxpmmask;
1501                 } else {
1502                         xpm = mark?m_folderxpm:folderxpm;
1503                         mask = mark?m_folderxpmmask:folderxpmmask;
1504                         openxpm = mark?m_folderopenxpm:folderopenxpm;
1505                         openmask = mark?m_folderopenxpmmask:folderopenxpmmask;
1506                 }
1507         }
1508
1509         if (item->no_select) {
1510                 xpm = openxpm = noselectxpm;
1511                 mask = openmask = noselectxpmmask;
1512         }
1513
1514         name = folder_item_get_name(item);
1515
1516         if (!GTK_CTREE_ROW(node)->expanded) {
1517                 add_unread_mark = folderview_have_unread_children(
1518                                         folderview, item);
1519                 add_sub_match_mark = folderview_have_matching_children(
1520                                         folderview, item);
1521         } else {
1522                 add_unread_mark = FALSE;
1523                 add_sub_match_mark = FALSE;
1524         }
1525
1526         if (item->search_match) {
1527                 if (!searchicon) {
1528                         stock_pixmap_gdk(folderview->ctree, STOCK_PIXMAP_QUICKSEARCH,
1529                          &searchicon, &searchmask);
1530                 }
1531                 xpm = openxpm = searchicon;
1532                 mask = openmask = searchmask;
1533         }
1534
1535         if (folder_has_parent_of_type(item, F_QUEUE) && item->total_msgs > 0 &&
1536             prefs_common.display_folder_unread) {
1537                 str = g_strdup_printf("%s (%d%s)", name, item->total_msgs,
1538                                       add_unread_mark ? "+" : "");
1539                 gtk_sctree_set_node_info(ctree, node, str, FOLDER_SPACING,
1540                                         xpm, mask, openxpm, openmask,
1541                                         FALSE, GTK_CTREE_ROW(node)->expanded);
1542                 g_free(str);
1543         } else if (((item->unread_msgs > 0 || add_unread_mark) &&
1544                     prefs_common.display_folder_unread)
1545                    || add_sub_match_mark) {
1546
1547                 if (item->unread_msgs > 0)
1548                         str = g_strdup_printf("%s (%d%s%s)", name, item->unread_msgs,
1549                                               add_unread_mark || add_sub_match_mark ? "+" : "",
1550                                               item->unreadmarked_msgs > 0 ? "!":"");
1551                 else
1552                         str = g_strdup_printf("%s (+)", name);
1553                 gtk_sctree_set_node_info(ctree, node, str, FOLDER_SPACING,
1554                                         xpm, mask, openxpm, openmask,
1555                                         FALSE, GTK_CTREE_ROW(node)->expanded);
1556                 g_free(str);
1557         } else {
1558                 str = g_strdup_printf("%s%s", name,
1559                                       item->unreadmarked_msgs > 0 ? " (!)":"");
1560
1561                 gtk_sctree_set_node_info(ctree, node, str, FOLDER_SPACING,
1562                                         xpm, mask, openxpm, openmask,
1563                                         FALSE, GTK_CTREE_ROW(node)->expanded);
1564                 g_free(str);
1565         }
1566         g_free(name);
1567
1568         if (!folder_item_parent(item)) {
1569                 gtk_ctree_node_set_text(ctree, node, col_pos[F_COL_NEW],    "-");
1570                 gtk_ctree_node_set_text(ctree, node, col_pos[F_COL_UNREAD], "-");
1571                 gtk_ctree_node_set_text(ctree, node, col_pos[F_COL_TOTAL],  "-");
1572         } else {
1573                 gtk_ctree_node_set_text(ctree, node, col_pos[F_COL_NEW],    itos(item->new_msgs));
1574                 gtk_ctree_node_set_text(ctree, node, col_pos[F_COL_UNREAD], itos(item->unread_msgs));
1575                 gtk_ctree_node_set_text(ctree, node, col_pos[F_COL_TOTAL],  itos(item->total_msgs));
1576         }
1577
1578         if (folder_has_parent_of_type(item, F_OUTBOX) ||
1579             folder_has_parent_of_type(item, F_DRAFT) ||
1580             folder_has_parent_of_type(item, F_TRASH)) {
1581                 use_bold = use_color = FALSE;
1582         } else if (folder_has_parent_of_type(item, F_QUEUE)) {
1583                 /* highlight queue folder if there are any messages */
1584                 use_bold = use_color = (item->total_msgs > 0);
1585         } else {
1586                 /* if unread messages exist, print with bold font */
1587                 use_bold = (item->unread_msgs > 0|| item->new_msgs > 0)
1588                                 || add_unread_mark;
1589                 /* if new messages exist, print with colored letter */
1590                 use_color =
1591                         (item->new_msgs > 0) ||
1592                         (add_unread_mark &&
1593                          folderview_have_new_children(folderview, item));
1594         }
1595
1596         gtk_ctree_node_set_foreground(ctree, node, NULL);
1597
1598         if (use_bold) {
1599                 GdkColor gdk_color;
1600
1601                 if (item->prefs->color > 0 && !use_color) {
1602                         gtkut_convert_int_to_gdk_color(item->prefs->color, &gdk_color);
1603                         color_style = gtk_style_copy(bold_style);
1604                         color_style->fg[GTK_STATE_NORMAL] = gdk_color;
1605                         style = color_style;
1606                 } else if (use_color) {
1607                         style = bold_color_style;
1608                 } else
1609                         style = bold_style;
1610                 if (item->op_count > 0) {
1611                         style = bold_tgtfold_style;
1612                 }
1613         } else if (use_color) {
1614                 style = normal_color_style;
1615                 gtk_ctree_node_set_foreground(ctree, node,
1616                                               &folderview->color_new);
1617         } else if (item->op_count > 0) {
1618                 style = bold_tgtfold_style;
1619         } else if (item->prefs->color > 0) {
1620                 GdkColor gdk_color;
1621                 gtkut_convert_int_to_gdk_color(item->prefs->color, &gdk_color);
1622                 color_style = gtk_style_copy(normal_style);
1623                 color_style->fg[GTK_STATE_NORMAL] = gdk_color;
1624                 style = color_style;
1625         } else {
1626                 style = normal_style;
1627         }
1628
1629         gtk_ctree_node_set_row_style(ctree, node, style);
1630
1631         if ((node = gtkut_ctree_find_collapsed_parent(ctree, node)) != NULL)
1632                 folderview_update_node(folderview, node);
1633 }
1634
1635 #if !CLAWS /* keep it here for syncs */
1636 void folderview_update_item(FolderItem *item, gboolean update_summary)
1637 {
1638         GList *list;
1639         FolderView *folderview;
1640         GtkCTree *ctree;
1641         GtkCTreeNode *node;
1642
1643         g_return_if_fail(item != NULL);
1644
1645         for (list = folderview_list; list != NULL; list = list->next) {
1646                 folderview = (FolderView *)list->data;
1647                 ctree = GTK_CTREE(folderview->ctree);
1648
1649                 node = gtk_ctree_find_by_row_data(ctree, NULL, item);
1650                 if (node) {
1651                         folderview_update_node(folderview, node);
1652                         if (update_summary && folderview->opened == node)
1653                                 summary_show(folderview->summaryview,
1654                                              item, FALSE);
1655                 }
1656         }
1657 }
1658 #endif
1659
1660 void folderview_update_search_icon(FolderItem *item, gboolean matches)
1661 {
1662         GList *list;
1663         FolderView *folderview;
1664         GtkCTree *ctree;
1665         GtkCTreeNode *node;
1666
1667         g_return_if_fail(item != NULL);
1668
1669         for (list = folderview_list; list != NULL; list = list->next) {
1670                 folderview = (FolderView *)list->data;
1671                 ctree = GTK_CTREE(folderview->ctree);
1672
1673                 node = gtk_ctree_find_by_row_data(ctree, NULL, item);
1674                 if (node) {
1675                         item->search_match = matches;
1676                         folderview_update_node(folderview, node);
1677                 }
1678         }
1679 }
1680
1681 gboolean folderview_update_item_claws(gpointer source, gpointer data)
1682 {
1683         FolderItemUpdateData *update_info = (FolderItemUpdateData *)source;
1684         FolderView *folderview = (FolderView *)data;
1685         GtkCTree *ctree;
1686         GtkCTreeNode *node;
1687         g_return_val_if_fail(update_info != NULL, TRUE);
1688         g_return_val_if_fail(update_info->item != NULL, TRUE);
1689         g_return_val_if_fail(folderview != NULL, FALSE);
1690
1691         ctree = GTK_CTREE(folderview->ctree);
1692
1693         node = gtk_ctree_find_by_row_data(ctree, NULL, update_info->item);
1694
1695         if (node) {
1696                 if (update_info->update_flags & (F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_NAME))
1697                         folderview_update_node(folderview, node);
1698                 if ((update_info->update_flags & F_ITEM_UPDATE_CONTENT) && (folderview->opened == node))
1699                         if (!quicksearch_is_active(folderview->summaryview->quicksearch))
1700                                 summary_show(folderview->summaryview, update_info->item);
1701         }
1702
1703         return FALSE;
1704 }
1705
1706 static void folderview_update_item_foreach_func(gpointer key, gpointer val,
1707                                                 gpointer data)
1708 {
1709         /* CLAWS: share this joy with other hook functions ... */
1710         folder_item_update((FolderItem *)key,
1711                            (FolderItemUpdateFlags)GPOINTER_TO_INT(data));
1712 }
1713
1714 void folderview_update_item_foreach(GHashTable *table, gboolean update_summary)
1715 {
1716         GList *list;
1717         FolderItemUpdateFlags flags;
1718
1719         flags = update_summary ?  F_ITEM_UPDATE_CONTENT | F_ITEM_UPDATE_MSGCNT
1720                 : 0;
1721         for (list = folderview_list; list != NULL; list = list->next)
1722                 g_hash_table_foreach(table, folderview_update_item_foreach_func,
1723                                      GINT_TO_POINTER(flags));
1724 }
1725
1726 static gboolean folderview_gnode_func(GtkCTree *ctree, guint depth,
1727                                       GNode *gnode, GtkCTreeNode *cnode,
1728                                       gpointer data)
1729 {
1730         FolderView *folderview = (FolderView *)data;
1731         FolderItem *item = FOLDER_ITEM(gnode->data);
1732
1733         g_return_val_if_fail(item != NULL, FALSE);
1734
1735         gtk_ctree_node_set_row_data(ctree, cnode, item);
1736         folderview_update_node(folderview, cnode);
1737
1738         return TRUE;
1739 }
1740
1741 static void folderview_expand_func(GtkCTree *ctree, GtkCTreeNode *node,
1742                                    gpointer data)
1743 {
1744         FolderView *folderview = (FolderView *)data;
1745         FolderItem *item;
1746
1747         if (GTK_CTREE_ROW(node)->children) {
1748                 item = gtk_ctree_node_get_row_data(ctree, node);
1749                 g_return_if_fail(item != NULL);
1750
1751                 if (!item->collapsed)
1752                         gtk_ctree_expand(ctree, node);
1753                 else
1754                         folderview_update_node(folderview, node);
1755         }
1756 }
1757
1758 static void set_special_folder(GtkCTree *ctree, FolderItem *item,
1759                                GtkCTreeNode *root, GtkCTreeNode **prev)
1760 {
1761         if (item) {
1762                 GtkCTreeNode *node, *parent, *sibling;
1763
1764                 node = gtk_ctree_find_by_row_data(ctree, root, item);
1765                 if (!node)
1766                         g_warning("%s not found.\n", item->path);
1767                 else {
1768                         parent = GTK_CTREE_ROW(node)->parent;
1769                         if (*prev && parent == GTK_CTREE_ROW(*prev)->parent)
1770                                 sibling = GTK_CTREE_ROW(*prev)->sibling;
1771                         else
1772                                 sibling = GTK_CTREE_ROW(parent)->children;
1773                         while (sibling) {
1774                                 FolderItem *tmp;
1775
1776                                 tmp = gtk_ctree_node_get_row_data
1777                                         (ctree, sibling);
1778                                 if (tmp->stype != F_NORMAL)
1779                                         sibling = GTK_CTREE_ROW(sibling)->sibling;
1780                                 else
1781                                         break;
1782                         }
1783                         if (node != sibling)
1784                                 gtk_ctree_move(ctree, node, parent, sibling);
1785                 }
1786
1787                 *prev = node;
1788         }
1789 }
1790
1791 static void folderview_sort_folders(FolderView *folderview, GtkCTreeNode *root,
1792                                     Folder *folder)
1793 {
1794         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
1795         GtkCTreeNode *prev = NULL;
1796
1797         gtk_clist_freeze(GTK_CLIST(ctree));
1798         gtk_sctree_sort_recursive(ctree, root);
1799         if (root && GTK_CTREE_ROW(root)->parent) {
1800                 gtk_clist_thaw(GTK_CLIST(ctree));
1801                 return;
1802         }
1803         set_special_folder(ctree, folder->inbox, root, &prev);
1804         set_special_folder(ctree, folder->outbox, root, &prev);
1805         set_special_folder(ctree, folder->draft, root, &prev);
1806         set_special_folder(ctree, folder->queue, root, &prev);
1807         set_special_folder(ctree, folder->trash, root, &prev);
1808         gtk_clist_thaw(GTK_CLIST(ctree));
1809 }
1810
1811 static void folderview_append_folder(FolderView *folderview, Folder *folder)
1812 {
1813         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
1814         GtkCTreeNode *root;
1815
1816         g_return_if_fail(folder != NULL);
1817
1818         root = gtk_sctree_insert_gnode(ctree, NULL, NULL, folder->node,
1819                                       folderview_gnode_func, folderview);
1820         gtk_ctree_pre_recursive(ctree, root, folderview_expand_func,
1821                                 folderview);
1822         folderview_sort_folders(folderview, root, folder);
1823 }
1824
1825 /* callback functions */
1826 static void folderview_set_sens_and_popup_menu(FolderView *folderview, gint row,
1827                                 GdkEventButton *event)
1828 {
1829         GtkCList *clist = GTK_CLIST(folderview->ctree);
1830         FolderItem *item;
1831         Folder *folder;
1832         FolderViewPopup *fpopup;
1833         GtkItemFactory *fpopup_factory;
1834         GtkWidget *popup;
1835         FolderItem *special_trash = NULL, *special_queue = NULL;
1836         PrefsAccount *ac;
1837
1838         if (row > 0)
1839                 item = gtk_clist_get_row_data(clist, row);
1840         else
1841                 item = folderview_get_selected_item(folderview);
1842
1843         g_return_if_fail(item != NULL);
1844         g_return_if_fail(item->folder != NULL);
1845         folder = item->folder;
1846
1847         fpopup = g_hash_table_lookup(folderview_popups, folder->klass->idstr);
1848         if (fpopup != NULL)
1849                 fpopup_factory = g_hash_table_lookup(folderview->popups, folder->klass->idstr);
1850         else {
1851                 fpopup = g_hash_table_lookup(folderview_popups, "common");
1852                 fpopup_factory = g_hash_table_lookup(folderview->popups, "common");
1853         }
1854
1855         if (fpopup->set_sensitivity != NULL)
1856                 fpopup->set_sensitivity(fpopup_factory, item);
1857
1858         if (NULL != (ac = account_find_from_item(item))) {
1859                 special_trash = account_get_special_folder(ac, F_TRASH);
1860                 special_queue = account_get_special_folder(ac, F_QUEUE);
1861         }
1862
1863         if ((item == folder->trash || item == special_trash
1864              || folder_has_parent_of_type(item, F_TRASH)) &&
1865             gtk_item_factory_get_item(fpopup_factory, "/Empty trash...") == NULL) {
1866                 gtk_item_factory_create_item(fpopup_factory, &folder_view_trash_popup_entries[0], folderview, 1);
1867                 gtk_item_factory_create_item(fpopup_factory, &folder_view_trash_popup_entries[1], folderview, 1);
1868         } else if (item != folder->trash && (special_trash == NULL || item != special_trash)
1869                 && !folder_has_parent_of_type(item, F_TRASH)) {
1870                 gtk_item_factory_delete_entry(fpopup_factory, &folder_view_trash_popup_entries[0]);
1871                 gtk_item_factory_delete_entry(fpopup_factory, &folder_view_trash_popup_entries[1]);
1872         }
1873
1874         if ((item == folder->queue || item == special_queue
1875              || folder_has_parent_of_type(item, F_QUEUE)) &&
1876             gtk_item_factory_get_item(fpopup_factory, "/Send queue...") == NULL) {
1877                 gtk_item_factory_create_item(fpopup_factory, &folder_view_queue_popup_entries[0], folderview, 1);
1878                 gtk_item_factory_create_item(fpopup_factory, &folder_view_queue_popup_entries[1], folderview, 1);
1879         } else if (item != folder->queue && (special_queue == NULL || item != special_queue)
1880                 && !folder_has_parent_of_type(item, F_QUEUE)) {
1881                 gtk_item_factory_delete_entry(fpopup_factory, &folder_view_queue_popup_entries[0]);
1882                 gtk_item_factory_delete_entry(fpopup_factory, &folder_view_queue_popup_entries[1]);
1883         }
1884
1885 #define SET_SENS(name, sens) \
1886         menu_set_sensitive(fpopup_factory, name, sens)
1887
1888         SET_SENS("/Mark all read", item->unread_msgs >= 1);
1889         SET_SENS("/Search folder...", item->total_msgs >= 1 &&
1890                  folderview->selected == folderview->opened);
1891         SET_SENS("/Properties...", TRUE);
1892         SET_SENS("/Processing...", item->node->parent != NULL);
1893         if (item == folder->trash || item == special_trash
1894             || folder_has_parent_of_type(item, F_TRASH)) {
1895                 GSList *msglist = folder_item_get_msg_list(item);
1896                 SET_SENS("/Empty trash...", msglist != NULL);
1897                 procmsg_msg_list_free(msglist);
1898         }
1899         if (item == folder->queue || item == special_queue
1900             || folder_has_parent_of_type(item, F_QUEUE)) {
1901                 GSList *msglist = folder_item_get_msg_list(item);
1902                 SET_SENS("/Send queue...", msglist != NULL);
1903                 procmsg_msg_list_free(msglist);
1904         }
1905 #undef SET_SENS
1906
1907         popup = gtk_item_factory_get_widget(fpopup_factory, fpopup->path);
1908         gtk_menu_popup(GTK_MENU(popup), NULL, NULL, NULL, NULL,
1909                        event->button, event->time);
1910
1911
1912 }
1913
1914 static gboolean folderview_button_pressed(GtkWidget *ctree, GdkEventButton *event,
1915                                           FolderView *folderview)
1916 {
1917         GtkCList *clist = GTK_CLIST(ctree);
1918         gint prev_row = -1, row = -1, column = -1;
1919
1920         if (!event) return FALSE;
1921
1922         if (event->button == 1 || event->button == 2) {
1923                 if (!gtk_ctree_is_hot_spot (GTK_CTREE(clist), event->x, event->y))
1924                         folderview->open_folder = TRUE;
1925
1926                 if (event->type == GDK_2BUTTON_PRESS) {
1927                         if (clist->selection) {
1928                                 GtkCTreeNode *node;
1929
1930                                 node = GTK_CTREE_NODE(clist->selection->data);
1931                                 if (node) {
1932                                         gtk_ctree_toggle_expansion(
1933                                                 GTK_CTREE(ctree),
1934                                                 node);
1935                                         folderview->open_folder = FALSE;
1936                                 }
1937                         }
1938                 }
1939                 return FALSE;
1940         }
1941
1942         if (event->button == 2 || event->button == 3) {
1943                 /* right clicked */
1944                 if (clist->selection) {
1945                         GtkCTreeNode *node;
1946
1947                         node = GTK_CTREE_NODE(clist->selection->data);
1948                         if (node)
1949                                 prev_row = gtkut_ctree_get_nth_from_node
1950                                         (GTK_CTREE(ctree), node);
1951                 }
1952
1953                 if (!gtk_clist_get_selection_info(clist, event->x, event->y,
1954                                                   &row, &column))
1955                         return FALSE;
1956                 if (prev_row != row) {
1957                         gtk_clist_unselect_all(clist);
1958                         if (event->button == 2)
1959                                 folderview_select_node
1960                                         (folderview,
1961                                          gtk_ctree_node_nth(GTK_CTREE(ctree),
1962                                                             row));
1963                         else
1964                                 gtk_clist_select_row(clist, row, column);
1965                 }
1966         }
1967
1968         if (event->button != 3) return FALSE;
1969
1970         folderview_set_sens_and_popup_menu(folderview, row, event);
1971         return FALSE;
1972 }
1973
1974 static gboolean folderview_button_released(GtkWidget *ctree, GdkEventButton *event,
1975                                            FolderView *folderview)
1976 {
1977         if (!event) return FALSE;
1978
1979         if (event->button == 1 && folderview->open_folder == FALSE &&
1980             folderview->opened != NULL) {
1981                 gtkut_ctree_set_focus_row(GTK_CTREE(ctree),
1982                                           folderview->opened);
1983                 gtk_ctree_select(GTK_CTREE(ctree), folderview->opened);
1984         }
1985
1986         return FALSE;
1987 }
1988
1989 static gboolean folderview_key_pressed(GtkWidget *widget, GdkEventKey *event,
1990                                        FolderView *folderview)
1991 {
1992         if (!event) return FALSE;
1993
1994         if (quicksearch_has_focus(folderview->summaryview->quicksearch))
1995                 return FALSE;
1996
1997         switch (event->keyval) {
1998         case GDK_Return:
1999                 if (folderview->selected) {
2000                         folderview_select_node(folderview,
2001                                                folderview->selected);
2002                 }
2003                 break;
2004         case GDK_space:
2005                 if (folderview->selected) {
2006                         if (folderview->opened == folderview->selected &&
2007                             (!folderview->summaryview->folder_item ||
2008                              folderview->summaryview->folder_item->total_msgs == 0))
2009                                 folderview_select_next_unread(folderview, TRUE);
2010                         else
2011                                 folderview_select_node(folderview,
2012                                                        folderview->selected);
2013                 }
2014                 break;
2015         default:
2016                 break;
2017         }
2018
2019         return FALSE;
2020 }
2021
2022 typedef struct _PostponedSelectData
2023 {
2024         GtkCTree *ctree;
2025         GtkCTreeNode *row;
2026         gint column;
2027         FolderView *folderview;
2028 } PostponedSelectData;
2029
2030 static gboolean postpone_select(void *data)
2031 {
2032         PostponedSelectData *psdata = (PostponedSelectData *)data;
2033         debug_print("trying again\n");
2034         psdata->folderview->open_folder = TRUE;
2035         main_window_cursor_normal(psdata->folderview->mainwin);
2036         STATUSBAR_POP(psdata->folderview->mainwin);
2037         folderview_selected(psdata->ctree, psdata->row,
2038                             psdata->column, psdata->folderview);
2039         g_free(psdata);
2040         return FALSE;
2041 }
2042
2043 static void folderview_selected(GtkCTree *ctree, GtkCTreeNode *row,
2044                                 gint column, FolderView *folderview)
2045 {
2046         static gboolean can_select = TRUE;      /* exclusive lock */
2047         gboolean opened;
2048         FolderItem *item;
2049         gchar *buf;
2050         int res = 0;
2051         START_TIMING("");
2052         folderview->selected = row;
2053
2054         if (folderview->opened == row) {
2055                 folderview->open_folder = FALSE;
2056                 END_TIMING();
2057                 return;
2058         }
2059
2060         if (!can_select || summary_is_locked(folderview->summaryview)) {
2061                 if (folderview->opened) {
2062                         gtkut_ctree_set_focus_row(ctree, folderview->opened);
2063                         gtk_ctree_select(ctree, folderview->opened);
2064                 }
2065                 END_TIMING();
2066                 return;
2067         }
2068
2069         if (!folderview->open_folder) {
2070                 END_TIMING();
2071                 return;
2072         }
2073         item = gtk_ctree_node_get_row_data(ctree, row);
2074         if (!item || item->no_select) {
2075                 END_TIMING();
2076                 folderview->open_folder = FALSE;
2077                 return;
2078         }
2079
2080         can_select = FALSE;
2081
2082         /* Save cache for old folder */
2083         /* We don't want to lose all caches if sylpheed crashed */
2084         if (folderview->opened) {
2085                 FolderItem *olditem;
2086
2087                 olditem = gtk_ctree_node_get_row_data(ctree, folderview->opened);
2088                 if (olditem) {
2089                         buf = g_strdup_printf(_("Closing Folder %s..."),
2090                                 olditem->path ? olditem->path:olditem->name);
2091                         /* will be null if we just moved the previously opened folder */
2092                         STATUSBAR_PUSH(folderview->mainwin, buf);
2093                         main_window_cursor_wait(folderview->mainwin);
2094                         g_free(buf);
2095                         summary_save_prefs_to_folderitem(folderview->summaryview, olditem);
2096                         summary_show(folderview->summaryview, NULL);
2097                         folder_item_close(olditem);
2098                         main_window_cursor_normal(folderview->mainwin);
2099                         STATUSBAR_POP(folderview->mainwin);
2100                 }
2101         }
2102
2103         /* CLAWS: set compose button type: news folder items
2104          * always have a news folder as parent */
2105         if (item->folder)
2106                 toolbar_set_compose_button
2107                         (folderview->mainwin->toolbar,
2108                          FOLDER_TYPE(item->folder) == F_NEWS ?
2109                          COMPOSEBUTTON_NEWS : COMPOSEBUTTON_MAIL);
2110
2111         if (item->path)
2112                 debug_print("Folder %s is selected\n", item->path);
2113
2114         if (!GTK_CTREE_ROW(row)->children)
2115                 gtk_ctree_expand(ctree, row);
2116         if (folderview->opened &&
2117             !GTK_CTREE_ROW(folderview->opened)->children)
2118                 gtk_ctree_collapse(ctree, folderview->opened);
2119
2120         /* ungrab the mouse event */
2121         if (GTK_WIDGET_HAS_GRAB(ctree)) {
2122                 gtk_grab_remove(GTK_WIDGET(ctree));
2123                 if (gdk_pointer_is_grabbed())
2124                         gdk_pointer_ungrab(GDK_CURRENT_TIME);
2125         }
2126
2127         /* Open Folder */
2128         buf = g_strdup_printf(_("Opening Folder %s..."), item->path ?
2129                                         item->path : "(null)");
2130         debug_print("%s\n", buf);
2131         STATUSBAR_PUSH(folderview->mainwin, buf);
2132         g_free(buf);
2133
2134         main_window_cursor_wait(folderview->mainwin);
2135
2136         res = folder_item_open(item);
2137         if (res == -1) {
2138                 main_window_cursor_normal(folderview->mainwin);
2139                 STATUSBAR_POP(folderview->mainwin);
2140
2141                 alertpanel_error(_("Folder could not be opened."));
2142
2143                 folderview->open_folder = FALSE;
2144                 can_select = TRUE;
2145                 END_TIMING();
2146                 return;
2147         } else if (res == -2) {
2148                 PostponedSelectData *data = g_new0(PostponedSelectData, 1);
2149                 data->ctree = ctree;
2150                 data->row = row;
2151                 data->column = column;
2152                 data->folderview = folderview;
2153                 debug_print("postponing open of %s till end of scan\n",
2154                         item->path ? item->path:item->name);
2155                 folderview->open_folder = FALSE;
2156                 can_select = TRUE;
2157                 g_timeout_add(500, postpone_select, data);
2158                 END_TIMING();
2159                 return;
2160         }
2161
2162         main_window_cursor_normal(folderview->mainwin);
2163
2164         /* Show messages */
2165         summary_set_prefs_from_folderitem(folderview->summaryview, item);
2166         opened = summary_show(folderview->summaryview, item);
2167
2168         folder_clean_cache_memory(item);
2169
2170         if (!opened) {
2171                 gtkut_ctree_set_focus_row(ctree, folderview->opened);
2172                 gtk_ctree_select(ctree, folderview->opened);
2173         } else {
2174                 folderview->opened = row;
2175                 if (gtk_ctree_node_is_visible(ctree, row)
2176                     != GTK_VISIBILITY_FULL)
2177                         gtk_ctree_node_moveto(ctree, row, -1, 0.5, 0);
2178         }
2179
2180         STATUSBAR_POP(folderview->mainwin);
2181
2182         folderview->open_folder = FALSE;
2183         can_select = TRUE;
2184         END_TIMING();
2185 }
2186
2187 static void folderview_tree_expanded(GtkCTree *ctree, GtkCTreeNode *node,
2188                                      FolderView *folderview)
2189 {
2190         FolderItem *item;
2191
2192         item = gtk_ctree_node_get_row_data(ctree, node);
2193         g_return_if_fail(item != NULL);
2194         item->collapsed = FALSE;
2195         folderview_update_node(folderview, node);
2196 }
2197
2198 static void folderview_tree_collapsed(GtkCTree *ctree, GtkCTreeNode *node,
2199                                       FolderView *folderview)
2200 {
2201         FolderItem *item;
2202
2203         item = gtk_ctree_node_get_row_data(ctree, node);
2204         g_return_if_fail(item != NULL);
2205         item->collapsed = TRUE;
2206         folderview_update_node(folderview, node);
2207 }
2208
2209 static void folderview_popup_close(GtkMenuShell *menu_shell,
2210                                    FolderView *folderview)
2211 {
2212         if (!folderview->opened) return;
2213
2214         gtk_ctree_select(GTK_CTREE(folderview->ctree), folderview->opened);
2215 }
2216
2217 static void folderview_col_resized(GtkCList *clist, gint column, gint width,
2218                                    FolderView *folderview)
2219 {
2220         FolderColumnType type = folderview->col_state[column].type;
2221
2222         prefs_common.folder_col_size[type] = width;
2223 }
2224
2225 void folderview_create_folder_node_recursive(FolderView *folderview, FolderItem *item)
2226 {
2227         GNode *srcnode;
2228
2229         folderview_create_folder_node(folderview, item);
2230
2231         if (!item || !item->folder || !item->folder->node)
2232                 return;
2233
2234         srcnode = item->folder->node;
2235         srcnode = g_node_find(srcnode, G_PRE_ORDER, G_TRAVERSE_ALL, item);
2236         srcnode = srcnode->children;
2237         while (srcnode != NULL) {
2238                 if (srcnode && srcnode->data) {
2239                         FolderItem *next_item = (FolderItem*) srcnode->data;
2240                         folderview_create_folder_node_recursive(folderview, next_item);
2241                 }
2242                 srcnode = srcnode->next;
2243         }
2244 }
2245
2246 void folderview_create_folder_node(FolderView *folderview, FolderItem *item)
2247 {
2248         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
2249         gchar *text[N_FOLDER_COLS] = {NULL, "0", "0", "0"};
2250         GtkCTreeNode *node, *parent_node;
2251         gint *col_pos = folderview->col_pos;
2252         FolderItemUpdateData hookdata;
2253
2254         parent_node = gtk_ctree_find_by_row_data(ctree, NULL, folder_item_parent(item));
2255         if (parent_node == NULL)
2256                 return;
2257
2258         gtk_clist_freeze(GTK_CLIST(ctree));
2259
2260         text[col_pos[F_COL_FOLDER]] = item->name;
2261         node = gtk_sctree_insert_node(ctree, parent_node, NULL, text,
2262                                      FOLDER_SPACING,
2263                                      folderxpm, folderxpmmask,
2264                                      folderopenxpm, folderopenxpmmask,
2265                                      FALSE, FALSE);
2266         gtk_ctree_expand(ctree, parent_node);
2267         gtk_ctree_node_set_row_data(ctree, node, item);
2268         if (normal_style)
2269                 gtk_ctree_node_set_row_style(ctree, node, normal_style);
2270         folderview_sort_folders(folderview, parent_node, item->folder);
2271
2272         hookdata.item = item;
2273         hookdata.update_flags = F_ITEM_UPDATE_NAME;
2274         hookdata.msg = NULL;
2275         hooks_invoke(FOLDER_ITEM_UPDATE_HOOKLIST, &hookdata);
2276
2277         gtk_clist_thaw(GTK_CLIST(ctree));
2278 }
2279
2280 static void folderview_empty_trash_cb(FolderView *folderview, guint action,
2281                                       GtkWidget *widget)
2282 {
2283         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
2284         FolderItem *item;
2285         GSList *mlist = NULL;
2286         GSList *cur = NULL;
2287         FolderItem *special_trash = NULL;
2288         PrefsAccount *ac;
2289
2290         if (!folderview->selected) return;
2291         item = gtk_ctree_node_get_row_data(ctree, folderview->selected);
2292         g_return_if_fail(item != NULL);
2293         g_return_if_fail(item->folder != NULL);
2294
2295         if (NULL != (ac = account_find_from_item(item)))
2296                 special_trash = account_get_special_folder(ac, F_TRASH);
2297
2298         if (item != item->folder->trash && item != special_trash
2299         &&  !folder_has_parent_of_type(item, F_TRASH)) return;
2300
2301         if (prefs_common.ask_on_clean) {
2302                 if (alertpanel(_("Empty trash"),
2303                                _("Delete all messages in trash?"),
2304                                GTK_STOCK_CANCEL, _("+_Empty trash"), NULL) != G_ALERTALTERNATE)
2305                         return;
2306         }
2307
2308         mlist = folder_item_get_msg_list(item);
2309
2310         for (cur = mlist ; cur != NULL ; cur = cur->next) {
2311                 MsgInfo * msginfo = (MsgInfo *) cur->data;
2312                 if (MSG_IS_LOCKED(msginfo->flags))
2313                         continue;
2314                 /* is it partially received? (partial_recv isn't cached) */
2315                 if (msginfo->total_size != 0 &&
2316                     msginfo->size != (off_t)msginfo->total_size)
2317                         partial_mark_for_delete(msginfo);
2318         }
2319         procmsg_msg_list_free(mlist);
2320
2321         folder_item_remove_all_msg(item);
2322 }
2323
2324 static void folderview_send_queue_cb(FolderView *folderview, guint action,
2325                                       GtkWidget *widget)
2326 {
2327         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
2328         FolderItem *item;
2329         FolderItem *special_queue = NULL;
2330         PrefsAccount *ac;
2331         gchar *errstr = NULL;
2332
2333         if (!folderview->selected) return;
2334         item = gtk_ctree_node_get_row_data(ctree, folderview->selected);
2335         g_return_if_fail(item != NULL);
2336         g_return_if_fail(item->folder != NULL);
2337
2338         if (NULL != (ac = account_find_from_item(item)))
2339                 special_queue = account_get_special_folder(ac, F_QUEUE);
2340
2341         if (item != item->folder->queue && item != special_queue
2342         &&  !folder_has_parent_of_type(item, F_QUEUE)) return;
2343
2344         if (procmsg_queue_is_empty(item))
2345                 return;
2346
2347         if (prefs_common.work_offline)
2348                 if (alertpanel(_("Offline warning"),
2349                                _("You're working offline. Override?"),
2350                                GTK_STOCK_NO, GTK_STOCK_YES,
2351                                NULL) != G_ALERTALTERNATE)
2352                 return;
2353
2354         /* ask for confirmation before sending queued messages only
2355            in online mode and if there is at least one message queued
2356            in any of the folder queue
2357         */
2358         if (prefs_common.confirm_send_queued_messages) {
2359                 if (!prefs_common.work_offline) {
2360                         if (alertpanel(_("Send queued messages"),
2361                                    _("Send all queued messages?"),
2362                                    GTK_STOCK_CANCEL, _("_Send"),
2363                                    NULL) != G_ALERTALTERNATE)
2364                                 return;
2365                 }
2366         }
2367
2368         if (procmsg_send_queue(item, prefs_common.savemsg, &errstr) < 0) {
2369                 if (!errstr)
2370                         alertpanel_error_log(_("Some errors occurred while "
2371                                            "sending queued messages."));
2372                 else {
2373                         gchar *tmp = g_strdup_printf(_("Some errors occurred "
2374                                         "while sending queued messages:\n%s"), errstr);
2375                         g_free(errstr);
2376                         alertpanel_error_log(tmp);
2377                         g_free(tmp);
2378                 }
2379         }
2380 }
2381
2382 static void folderview_search_cb(FolderView *folderview, guint action,
2383                                  GtkWidget *widget)
2384 {
2385         summary_search(folderview->summaryview);
2386 }
2387
2388 static void folderview_property_cb(FolderView *folderview, guint action,
2389                                    GtkWidget *widget)
2390 {
2391         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
2392         FolderItem *item;
2393
2394         if (!folderview->selected) return;
2395
2396         item = gtk_ctree_node_get_row_data(ctree, folderview->selected);
2397         g_return_if_fail(item != NULL);
2398         g_return_if_fail(item->folder != NULL);
2399
2400         prefs_folder_item_open(item);
2401 }
2402
2403 static void folderview_recollapse_nodes(FolderView *folderview, GtkCTreeNode *node)
2404 {
2405         GSList *list = NULL;
2406         GSList *done = NULL;
2407         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
2408
2409         for (list = folderview->nodes_to_recollapse; list != NULL; list = g_slist_next(list)) {
2410                 if (!gtkut_ctree_node_is_parent(GTK_CTREE_NODE(list->data), node)
2411                 &&  list->data != node) {
2412                         gtk_ctree_collapse(ctree, GTK_CTREE_NODE(list->data));
2413                         done = g_slist_append(done, GTK_CTREE_NODE(list->data));
2414                 }
2415         }
2416         for (list = done; list != NULL; list = g_slist_next(list)) {
2417                 folderview->nodes_to_recollapse = g_slist_remove(folderview->nodes_to_recollapse,
2418                                                                  list->data);
2419         }
2420         g_slist_free(done);
2421 }
2422
2423 void folderview_move_folder(FolderView *folderview, FolderItem *from_folder,
2424                             FolderItem *to_folder)
2425 {
2426         FolderItem *from_parent = NULL;
2427         FolderItem *new_folder = NULL;
2428         GtkCTreeNode *src_node = NULL;
2429         gchar *buf;
2430         gint status;
2431
2432         g_return_if_fail(folderview != NULL);
2433         g_return_if_fail(from_folder != NULL);
2434         g_return_if_fail(to_folder != NULL);
2435
2436         src_node = gtk_ctree_find_by_row_data(GTK_CTREE(folderview->ctree), NULL, from_folder);
2437         from_parent = folder_item_parent(from_folder);
2438
2439         if (prefs_common.warn_dnd) {
2440                 buf = g_strdup_printf(_("Do you really want to make folder '%s' a "
2441                                         "sub-folder of '%s' ?"), from_folder->name,
2442                                         to_folder->name);
2443                 status = alertpanel_full(_("Move folder"), buf,
2444                                          GTK_STOCK_NO, GTK_STOCK_YES, NULL, TRUE,
2445                                          NULL, ALERT_QUESTION, G_ALERTDEFAULT);
2446                 g_free(buf);
2447
2448                 if ((status & ~G_ALERTDISABLE) != G_ALERTALTERNATE)
2449                         return;
2450                 else if (status & G_ALERTDISABLE)
2451                         prefs_common.warn_dnd = FALSE;
2452         }
2453
2454         buf = g_strdup_printf(_("Moving %s to %s..."), from_folder->name, to_folder->name);
2455         STATUSBAR_PUSH(folderview->mainwin, buf);
2456         g_free(buf);
2457         summary_clear_all(folderview->summaryview);
2458         folderview->opened = NULL;
2459         folderview->selected = NULL;
2460         gtk_widget_set_sensitive(GTK_WIDGET(folderview->ctree), FALSE);
2461         inc_lock();
2462         main_window_cursor_wait(folderview->mainwin);
2463         statusbar_verbosity_set(TRUE);
2464         folder_item_update_freeze();
2465         if ((status = folder_item_move_to(from_folder, to_folder, &new_folder)) == F_MOVE_OK) {
2466                 statusbar_verbosity_set(FALSE);
2467                 main_window_cursor_normal(folderview->mainwin);
2468                 STATUSBAR_POP(folderview->mainwin);
2469                 folder_item_update_thaw();
2470                 folder_item_update_recursive(new_folder, F_ITEM_UPDATE_MSGCNT);
2471
2472                 folderview_sort_folders(folderview,
2473                         gtk_ctree_find_by_row_data(GTK_CTREE(folderview->ctree),
2474                                 NULL, to_folder), new_folder->folder);
2475                 folderview_select(folderview, new_folder);
2476         } else {
2477                 statusbar_verbosity_set(FALSE);
2478                 main_window_cursor_normal(folderview->mainwin);
2479                 STATUSBAR_POP(folderview->mainwin);
2480                 folder_item_update_thaw();
2481                 switch (status) {
2482                 case F_MOVE_FAILED_DEST_IS_PARENT:
2483                         alertpanel_error(_("Source and destination are the same."));
2484                         break;
2485                 case F_MOVE_FAILED_DEST_IS_CHILD:
2486                         alertpanel_error(_("Can't move a folder to one of its children."));
2487                         break;
2488                 case F_MOVE_FAILED_DEST_OUTSIDE_MAILBOX:
2489                         alertpanel_error(_("Folder moving cannot be done between different mailboxes."));
2490                         break;
2491                 default:
2492                         alertpanel_error(_("Move failed!"));
2493                         break;
2494                 }
2495         }
2496         inc_unlock();
2497         gtk_widget_set_sensitive(GTK_WIDGET(folderview->ctree), TRUE);
2498 }
2499
2500 static gint folderview_clist_compare(GtkCList *clist,
2501                                      gconstpointer ptr1, gconstpointer ptr2)
2502 {
2503         FolderItem *item1 = ((GtkCListRow *)ptr1)->data;
2504         FolderItem *item2 = ((GtkCListRow *)ptr2)->data;
2505
2506         if (!item1->name)
2507                 return (item2->name != NULL);
2508         if (!item2->name)
2509                 return -1;
2510
2511         return g_utf8_collate(item1->name, item2->name);
2512 }
2513
2514 static void folderview_processing_cb(FolderView *folderview, guint action,
2515                                      GtkWidget *widget)
2516 {
2517         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
2518         FolderItem *item;
2519         gchar *id, *title;
2520
2521         if (!folderview->selected) return;
2522
2523         item = gtk_ctree_node_get_row_data(ctree, folderview->selected);
2524         g_return_if_fail(item != NULL);
2525         g_return_if_fail(item->folder != NULL);
2526
2527         id = folder_item_get_identifier(item);
2528         title = g_strdup_printf (_("Processing configuration for folder %s"), id);
2529         g_free (id);
2530
2531         prefs_filtering_open(&item->prefs->processing, title,
2532                         MANUAL_ANCHOR_PROCESSING, NULL, NULL, FALSE);
2533         g_free (title);
2534 }
2535
2536 void folderview_set_target_folder_color(gint color_op)
2537 {
2538         gint firstone = 1;
2539         GList *list;
2540         FolderView *folderview;
2541
2542         for (list = folderview_list; list != NULL; list = list->next) {
2543                 folderview = (FolderView *)list->data;
2544                 gtkut_convert_int_to_gdk_color(color_op, &folderview->color_op);
2545                 if (firstone) {
2546                         bold_tgtfold_style->fg[GTK_STATE_NORMAL] =
2547                                 folderview->color_op;
2548                         firstone = 0;
2549                 }
2550         }
2551 }
2552
2553 static gchar *last_font = NULL;
2554 void folderview_reflect_prefs_pixmap_theme(FolderView *folderview)
2555 {
2556         /* force reinit */
2557         g_free(last_font);
2558         last_font = NULL;
2559
2560 }
2561
2562 void folderview_reflect_prefs(void)
2563 {
2564         gboolean update_font = TRUE;
2565         FolderView *folderview = mainwindow_get_mainwindow()->folderview;
2566         FolderItem *item = folderview_get_selected_item(folderview);
2567         GtkAdjustment *pos = gtk_scrolled_window_get_vadjustment(
2568                                 GTK_SCROLLED_WINDOW(folderview->scrolledwin));
2569         gint height = pos->value;
2570
2571         if (last_font && !strcmp(last_font, NORMAL_FONT))
2572                 update_font = FALSE;
2573
2574         g_free(last_font);
2575         last_font = g_strdup(NORMAL_FONT);
2576
2577         if (update_font) {
2578                 normal_style = normal_color_style = bold_style =
2579                         bold_color_style = bold_tgtfold_style = NULL;
2580
2581                 folderview_init(folderview);
2582         }
2583         gtk_clist_freeze(GTK_CLIST(folderview->ctree));
2584         folderview_column_set_titles(folderview);
2585         folderview_set_all();
2586
2587         g_signal_handlers_block_by_func
2588                 (G_OBJECT(folderview->ctree),
2589                  G_CALLBACK(folderview_selected), folderview);
2590
2591         if (item) {
2592                 GtkCTreeNode *node = gtk_ctree_find_by_row_data(
2593                         GTK_CTREE(folderview->ctree), NULL, item);
2594
2595                 folderview_select(folderview, item);
2596                 folderview->open_folder = FALSE;
2597                 folderview->selected = node;
2598         }
2599
2600         g_signal_handlers_unblock_by_func
2601                 (G_OBJECT(folderview->ctree),
2602                  G_CALLBACK(folderview_selected), folderview);
2603
2604         pos = gtk_scrolled_window_get_vadjustment(
2605                                 GTK_SCROLLED_WINDOW(folderview->scrolledwin));
2606         gtk_adjustment_set_value(pos, height);
2607         gtk_clist_thaw(GTK_CLIST(folderview->ctree));
2608 }
2609
2610 static void drag_state_stop(FolderView *folderview)
2611 {
2612         if (folderview->drag_timer)
2613                 g_source_remove(folderview->drag_timer);
2614         folderview->drag_timer = 0;
2615         folderview->drag_node = NULL;
2616 }
2617
2618 static gint folderview_defer_expand(FolderView *folderview)
2619 {
2620         if (folderview->drag_node) {
2621                 folderview_recollapse_nodes(folderview, folderview->drag_node);
2622                 if (folderview->drag_item->collapsed) {
2623                         gtk_ctree_expand(GTK_CTREE(folderview->ctree), folderview->drag_node);
2624                         folderview->nodes_to_recollapse = g_slist_append
2625                                 (folderview->nodes_to_recollapse, folderview->drag_node);
2626                 }
2627         }
2628         folderview->drag_item  = NULL;
2629         folderview->drag_timer = 0;
2630         return FALSE;
2631 }
2632
2633 static void drag_state_start(FolderView *folderview, GtkCTreeNode *node, FolderItem *item)
2634 {
2635         /* the idea is that we call drag_state_start() whenever we want expansion to
2636          * start after 'prefs_common.hover_time' msecs. if we want to cancel expansion,
2637          * we need to call drag_state_stop() */
2638         drag_state_stop(folderview);
2639         /* request expansion */
2640         if (0 != (folderview->drag_timer = g_timeout_add
2641                         (prefs_common.hover_timeout,
2642                          (GtkFunction)folderview_defer_expand,
2643                          folderview))) {
2644                 folderview->drag_node = node;
2645                 folderview->drag_item = item;
2646         }
2647 }
2648
2649 static void folderview_start_drag(GtkWidget *widget, gint button, GdkEvent *event,
2650                                   FolderView       *folderview)
2651 {
2652         GdkDragContext *context;
2653
2654         g_return_if_fail(folderview != NULL);
2655         if (folderview->selected == NULL) return;
2656         if (folderview->nodes_to_recollapse)
2657                 g_slist_free(folderview->nodes_to_recollapse);
2658         folderview->nodes_to_recollapse = NULL;
2659         context = gtk_drag_begin(widget, folderview->target_list,
2660                                  GDK_ACTION_MOVE|GDK_ACTION_COPY|GDK_ACTION_DEFAULT, button, event);
2661         gtk_drag_set_icon_default(context);
2662 }
2663
2664 static void folderview_drag_data_get(GtkWidget        *widget,
2665                                      GdkDragContext   *drag_context,
2666                                      GtkSelectionData *selection_data,
2667                                      guint             info,
2668                                      guint             time,
2669                                      FolderView       *folderview)
2670 {
2671         FolderItem *item;
2672         GList *cur;
2673         gchar *source = NULL;
2674         if (info == TARGET_DUMMY) {
2675                 for (cur = GTK_CLIST(folderview->ctree)->selection;
2676                      cur != NULL; cur = cur->next) {
2677                         item = gtk_ctree_node_get_row_data
2678                                 (GTK_CTREE(folderview->ctree),
2679                                  GTK_CTREE_NODE(cur->data));
2680                         if (item) {
2681                                 source = g_strdup_printf ("FROM_OTHER_FOLDER%s", folder_item_get_identifier(item));
2682                                 gtk_selection_data_set(selection_data,
2683                                                        selection_data->target, 8,
2684                                                        source, strlen(source));
2685                                 break;
2686                         } else
2687                                 return;
2688                 }
2689         } else {
2690                 g_warning("unknown info %d\n", info);
2691         }
2692 }
2693
2694 gboolean folderview_update_folder(gpointer source, gpointer userdata)
2695 {
2696         FolderUpdateData *hookdata;
2697         FolderView *folderview;
2698         GtkWidget *ctree;
2699
2700         hookdata = source;
2701         folderview = (FolderView *) userdata;
2702         g_return_val_if_fail(hookdata != NULL, FALSE);
2703         g_return_val_if_fail(folderview != NULL, FALSE);
2704
2705         ctree = folderview->ctree;
2706         g_return_val_if_fail(ctree != NULL, FALSE);
2707
2708         if (hookdata->update_flags & FOLDER_ADD_FOLDERITEM)
2709                 folderview_create_folder_node(folderview, hookdata->item);
2710         else if (hookdata->update_flags & FOLDER_RENAME_FOLDERITEM) {
2711                 GtkCTreeNode *node = gtk_ctree_find_by_row_data(GTK_CTREE(ctree),
2712                                 NULL, folder_item_parent(hookdata->item));
2713                 folderview_sort_folders(folderview, node, hookdata->folder);
2714         } else if (hookdata->update_flags & FOLDER_REMOVE_FOLDERITEM) {
2715                 GtkCTreeNode *node;
2716
2717                 node = gtk_ctree_find_by_row_data(GTK_CTREE(ctree), NULL, hookdata->item);
2718                 if (node != NULL)
2719                         gtk_ctree_remove_node(GTK_CTREE(ctree), node);
2720         } else if (hookdata->update_flags & (FOLDER_TREE_CHANGED | FOLDER_ADD_FOLDER | FOLDER_REMOVE_FOLDER))
2721                 folderview_set(folderview);
2722
2723         return FALSE;
2724 }
2725
2726 static gboolean folderview_drag_motion_cb(GtkWidget      *widget,
2727                                           GdkDragContext *context,
2728                                           gint            x,
2729                                           gint            y,
2730                                           guint           time,
2731                                           FolderView     *folderview)
2732 {
2733         gint row, column;
2734         FolderItem *item = NULL, *src_item = NULL;
2735         GtkCTreeNode *node = NULL;
2736         gboolean acceptable = FALSE;
2737         GtkAdjustment *pos = gtk_scrolled_window_get_vadjustment(
2738                                 GTK_SCROLLED_WINDOW(folderview->scrolledwin));
2739         int height = (int)pos->page_size;
2740         int total_height = (int)pos->upper;
2741         int vpos = (int) pos->value;
2742
2743         if (gtk_clist_get_selection_info
2744                 (GTK_CLIST(widget), x - 24, y - 24, &row, &column)) {
2745                 GtkWidget *srcwidget;
2746
2747                 if (y > height - 24 && height + vpos < total_height)
2748                         gtk_adjustment_set_value(pos, (vpos+5 > height ? height : vpos+5));
2749
2750                 if (y < 48 && y > 0)
2751                         gtk_adjustment_set_value(pos, (vpos-5 < 0 ? 0 : vpos-5));
2752
2753                 node = gtk_ctree_node_nth(GTK_CTREE(widget), row);
2754                 item = gtk_ctree_node_get_row_data(GTK_CTREE(widget), node);
2755                 src_item = folderview->summaryview->folder_item;
2756
2757                 srcwidget = gtk_drag_get_source_widget(context);
2758                 if (srcwidget == summary_get_main_widget(folderview->summaryview)) {
2759                         /* comes from summaryview */
2760                         /* we are copying messages, so only accept folder items that are not
2761                            the source item, are no root items and can copy messages */
2762                         if (item && item->folder && folder_item_parent(item) != NULL && src_item &&
2763                             src_item != item && FOLDER_CLASS(item->folder)->copy_msg != NULL &&
2764                             FOLDER_TYPE(item->folder) != F_UNKNOWN)
2765                                 acceptable = TRUE;
2766                 } else if (srcwidget == folderview->ctree) {
2767                         /* comes from folderview */
2768                         /* we are moving folder items, only accept folders that are not
2769                            the source items and can copy messages and create folder items */
2770                         if (item && item->folder && src_item && src_item != item &&
2771                             FOLDER_CLASS(item->folder)->copy_msg != NULL &&
2772                             FOLDER_CLASS(item->folder)->create_folder != NULL &&
2773                             ((FOLDER_TYPE(item->folder) != F_UNKNOWN &&  FOLDER_TYPE(src_item->folder) != F_UNKNOWN)
2774                              || item->folder == src_item->folder))
2775                                 acceptable = TRUE;
2776                 } else {
2777                         /* comes from another app */
2778                         /* we are adding messages, so only accept folder items that are
2779                            no root items and can copy messages */
2780                         if (item && item->folder && folder_item_parent(item) != NULL
2781                             && FOLDER_CLASS(item->folder)->add_msg != NULL &&
2782                             FOLDER_TYPE(item->folder) != F_UNKNOWN)
2783                                 acceptable = TRUE;
2784                 }
2785         }
2786
2787         if (acceptable || (src_item && src_item == item))
2788                 drag_state_start(folderview, node, item);
2789
2790         if (acceptable) {
2791                 g_signal_handlers_block_by_func
2792                         (G_OBJECT(widget),
2793                          G_CALLBACK(folderview_selected), folderview);
2794                 gtk_ctree_select(GTK_CTREE(widget), node);
2795                 g_signal_handlers_unblock_by_func
2796                         (G_OBJECT(widget),
2797                          G_CALLBACK(folderview_selected), folderview);
2798                 gdk_drag_status(context,
2799                                         (context->actions == GDK_ACTION_COPY ?
2800                                         GDK_ACTION_COPY : GDK_ACTION_MOVE) , time);
2801         } else {
2802                 if (folderview->opened)
2803                         gtk_ctree_select(GTK_CTREE(widget), folderview->opened);
2804                 gdk_drag_status(context, 0, time);
2805         }
2806
2807         return acceptable;
2808 }
2809
2810 static void folderview_drag_leave_cb(GtkWidget      *widget,
2811                                      GdkDragContext *context,
2812                                      guint           time,
2813                                      FolderView     *folderview)
2814 {
2815         drag_state_stop(folderview);
2816         gtk_ctree_select(GTK_CTREE(widget), folderview->opened);
2817 }
2818
2819 static void free_info (gpointer stuff, gpointer data)
2820 {
2821         g_free(stuff);
2822 }
2823
2824 void folderview_finish_dnd(const gchar *data, GdkDragContext *drag_context,
2825                            guint time, FolderItem *item)
2826 {
2827         GList *list, *tmp;
2828         GSList *msglist = NULL;
2829         list = uri_list_extract_filenames(data);
2830         if (!(item && item->folder && folder_item_parent(item) != NULL
2831                     && FOLDER_CLASS(item->folder)->add_msg != NULL))
2832         {
2833                 gtk_drag_finish(drag_context, FALSE, FALSE, time);
2834                 return;
2835         }
2836         if (!list) {
2837                 gtk_drag_finish(drag_context, FALSE, FALSE, time);
2838                 return;
2839         }
2840         for (tmp = list; tmp != NULL; tmp = tmp->next) {
2841                 MsgFileInfo *info = NULL;
2842
2843                 if (file_is_email((gchar *)tmp->data)) {
2844                         info = g_new0(MsgFileInfo, 1);
2845                         info->msginfo = NULL;
2846                         info->file = (gchar *)tmp->data;
2847                         msglist = g_slist_prepend(msglist, info);
2848                 }
2849         }
2850         if (msglist) {
2851                 msglist = g_slist_reverse(msglist);
2852                 folder_item_add_msgs(item, msglist, FALSE);
2853                 g_slist_foreach(msglist, free_info, NULL);
2854                 g_slist_free(msglist);
2855                 gtk_drag_finish(drag_context, TRUE, FALSE, time);
2856         } else {
2857                 gtk_drag_finish(drag_context, FALSE, FALSE, time);
2858         }
2859         list_free_strings(list);
2860         g_list_free(list);
2861 }
2862
2863 static void folderview_drag_received_cb(GtkWidget        *widget,
2864                                         GdkDragContext   *drag_context,
2865                                         gint              x,
2866                                         gint              y,
2867                                         GtkSelectionData *data,
2868                                         guint             info,
2869                                         guint             time,
2870                                         FolderView       *folderview)
2871 {
2872         gint row, column;
2873         FolderItem *item = NULL, *src_item;
2874         GtkCTreeNode *node;
2875
2876         if (info == TARGET_DUMMY) {
2877                 drag_state_stop(folderview);
2878                 if ((void *)strstr(data->data, "FROM_OTHER_FOLDER") != (void *)data->data) {
2879                         /* comes from summaryview */
2880                         if (gtk_clist_get_selection_info
2881                                 (GTK_CLIST(widget), x - 24, y - 24, &row, &column) == 0)
2882                                 return;
2883
2884                         node = gtk_ctree_node_nth(GTK_CTREE(widget), row);
2885                         item = gtk_ctree_node_get_row_data(GTK_CTREE(widget), node);
2886                         src_item = folderview->summaryview->folder_item;
2887
2888                         /* re-check (due to acceptable possibly set for folder moves */
2889                         if (!(item && item->folder && item->path && !item->no_select &&
2890                               src_item && src_item != item && FOLDER_CLASS(item->folder)->copy_msg != NULL)) {
2891                                 return;
2892                         }
2893                         if (item && src_item) {
2894                                 switch (drag_context->action) {
2895                                 case GDK_ACTION_COPY:
2896                                         summary_copy_selected_to(folderview->summaryview, item);
2897                                         gtk_drag_finish(drag_context, TRUE, FALSE, time);
2898                                         break;
2899                                 case GDK_ACTION_MOVE:
2900                                 case GDK_ACTION_DEFAULT:
2901                                 default:
2902                                         if (FOLDER_CLASS(src_item->folder)->remove_msg == NULL)
2903                                                 summary_copy_selected_to(folderview->summaryview, item);
2904                                         else
2905                                                 summary_move_selected_to(folderview->summaryview, item);
2906                                         gtk_drag_finish(drag_context, TRUE, TRUE, time);
2907                                 }
2908                         } else
2909                                 gtk_drag_finish(drag_context, FALSE, FALSE, time);
2910                 } else {
2911                         /* comes from folderview */
2912                         char *source;
2913                         gboolean folder_is_normal = TRUE;
2914
2915                         source = data->data + 17;
2916                         if (gtk_clist_get_selection_info
2917                             (GTK_CLIST(widget), x - 24, y - 24, &row, &column) == 0
2918                             || *source == 0) {
2919                                 gtk_drag_finish(drag_context, FALSE, FALSE, time);
2920                                 return;
2921                         }
2922                         node = gtk_ctree_node_nth(GTK_CTREE(widget), row);
2923                         item = gtk_ctree_node_get_row_data(GTK_CTREE(widget), node);
2924                         src_item = folder_find_item_from_identifier(source);
2925
2926                         folder_is_normal =
2927                                 src_item != NULL &&
2928                                 src_item->stype == F_NORMAL &&
2929                                 !folder_has_parent_of_type(src_item, F_OUTBOX) &&
2930                                 !folder_has_parent_of_type(src_item, F_DRAFT) &&
2931                                 !folder_has_parent_of_type(src_item, F_QUEUE) &&
2932                                 !folder_has_parent_of_type(src_item, F_TRASH);
2933                         if (!item || item->no_select || !src_item
2934                         ||  !folder_is_normal) {
2935                                 gtk_drag_finish(drag_context, FALSE, FALSE, time);
2936                                 return;
2937                         }
2938
2939                         folderview_move_folder(folderview, src_item, item);
2940                         gtk_drag_finish(drag_context, TRUE, TRUE, time);
2941                 }
2942                 folderview->nodes_to_recollapse = NULL;
2943         } else if (info == TARGET_MAIL_URI_LIST) {
2944                 if (gtk_clist_get_selection_info
2945                         (GTK_CLIST(widget), x - 24, y - 24, &row, &column) == 0)
2946                         return;
2947
2948                 node = gtk_ctree_node_nth(GTK_CTREE(widget), row);
2949                 if (!node) {
2950                         gtk_drag_finish(drag_context, FALSE, FALSE, time);
2951                         return;
2952                 }
2953                 item = gtk_ctree_node_get_row_data(GTK_CTREE(widget), node);
2954                 if (!item) {
2955                         gtk_drag_finish(drag_context, FALSE, FALSE, time);
2956                         return;
2957                 }
2958                 folderview_finish_dnd(data->data, drag_context, time, item);
2959         }
2960 }
2961
2962 static void folderview_drag_end_cb(GtkWidget        *widget,
2963                                    GdkDragContext   *drag_context,
2964                                    FolderView       *folderview)
2965 {
2966         drag_state_stop(folderview);
2967         g_slist_free(folderview->nodes_to_recollapse);
2968         folderview->nodes_to_recollapse = NULL;
2969 }
2970
2971 void folderview_register_popup(FolderViewPopup *fpopup)
2972 {
2973         GList *folderviews;
2974
2975         for (folderviews = folderview_list; folderviews != NULL; folderviews = g_list_next(folderviews)) {
2976                 FolderView *folderview = folderviews->data;
2977                 GtkItemFactory *factory;
2978
2979                 factory = create_ifactory(folderview, fpopup);
2980                 g_hash_table_insert(folderview->popups, fpopup->klass, factory);
2981         }
2982         g_hash_table_insert(folderview_popups, fpopup->klass, fpopup);
2983 }
2984
2985 void folderview_unregister_popup(FolderViewPopup *fpopup)
2986 {
2987         GList *folderviews;
2988
2989         for (folderviews = folderview_list; folderviews != NULL; folderviews = g_list_next(folderviews)) {
2990                 FolderView *folderview = folderviews->data;
2991
2992                 g_hash_table_remove(folderview->popups, fpopup->klass);
2993         }
2994         g_hash_table_remove(folderview_popups, fpopup->klass);
2995 }