src/folderview.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2004 Hiroyuki Yamamoto
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18  */
  19
  20 #include "defs.h"
  21
  22 #include <glib.h>
  23 #include <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
  67 typedef enum
  68 {
  69         COL_FOLDER      = 0,
  70         COL_NEW         = 1,
  71         COL_UNREAD      = 2,
  72         COL_TOTAL       = 3
  73 } FolderColumnPos;
  74
  75 #define N_FOLDER_COLS           4
  76 #define COL_FOLDER_WIDTH        150
  77 #define COL_NUM_WIDTH           32
  78
  79 static GList *folderview_list = NULL;
  80
  81 static GtkStyle *normal_style;
  82 static GtkStyle *normal_color_style;
  83 static GtkStyle *bold_style;
  84 static GtkStyle *bold_color_style;
  85 static GtkStyle *bold_tgtfold_style;
  86
  87 static GdkPixmap *inboxxpm;
  88 static GdkBitmap *inboxxpmmask;
  89 static GdkPixmap *inboxhrmxpm;
  90 static GdkBitmap *inboxhrmxpmmask;
  91 static GdkPixmap *inboxopenxpm;
  92 static GdkBitmap *inboxopenxpmmask;
  93 static GdkPixmap *inboxopenhrmxpm;
  94 static GdkBitmap *inboxopenhrmxpmmask;
  95 static GdkPixmap *outboxxpm;
  96 static GdkBitmap *outboxxpmmask;
  97 static GdkPixmap *outboxhrmxpm;
  98 static GdkBitmap *outboxhrmxpmmask;
  99 static GdkPixmap *outboxopenxpm;
 100 static GdkBitmap *outboxopenxpmmask;
 101 static GdkPixmap *outboxopenhrmxpm;
 102 static GdkBitmap *outboxopenhrmxpmmask;
 103 static GdkPixmap *folderxpm;
 104 static GdkBitmap *folderxpmmask;
 105 static GdkPixmap *folderhrmxpm;
 106 static GdkBitmap *folderhrmxpmmask;
 107 static GdkPixmap *folderopenxpm;
 108 static GdkBitmap *folderopenxpmmask;
 109 static GdkPixmap *folderopenhrmxpm;
 110 static GdkBitmap *folderopenhrmxpmmask;
 111 static GdkPixmap *trashopenxpm;
 112 static GdkBitmap *trashopenxpmmask;
 113 static GdkPixmap *trashopenhrmxpm;
 114 static GdkBitmap *trashopenhrmxpmmask;
 115 static GdkPixmap *trashxpm;
 116 static GdkBitmap *trashxpmmask;
 117 static GdkPixmap *trashhrmxpm;
 118 static GdkBitmap *trashhrmxpmmask;
 119 static GdkPixmap *queuexpm;
 120 static GdkBitmap *queuexpmmask;
 121 static GdkPixmap *queuehrmxpm;
 122 static GdkBitmap *queuehrmxpmmask;
 123 static GdkPixmap *queueopenxpm;
 124 static GdkBitmap *queueopenxpmmask;
 125 static GdkPixmap *queueopenhrmxpm;
 126 static GdkBitmap *queueopenhrmxpmmask;
 127 static GdkPixmap *draftsxpm;
 128 static GdkBitmap *draftsxpmmask;
 129 static GdkPixmap *draftsopenxpm;
 130 static GdkBitmap *draftsopenxpmmask;
 131 static GdkPixmap *noselectxpm;
 132 static GdkBitmap *noselectxpmmask;
 133
 134 static GdkPixmap *m_inboxxpm;
 135 static GdkBitmap *m_inboxxpmmask;
 136 static GdkPixmap *m_inboxhrmxpm;
 137 static GdkBitmap *m_inboxhrmxpmmask;
 138 static GdkPixmap *m_inboxopenxpm;
 139 static GdkBitmap *m_inboxopenxpmmask;
 140 static GdkPixmap *m_inboxopenhrmxpm;
 141 static GdkBitmap *m_inboxopenhrmxpmmask;
 142 static GdkPixmap *m_outboxxpm;
 143 static GdkBitmap *m_outboxxpmmask;
 144 static GdkPixmap *m_outboxhrmxpm;
 145 static GdkBitmap *m_outboxhrmxpmmask;
 146 static GdkPixmap *m_outboxopenxpm;
 147 static GdkBitmap *m_outboxopenxpmmask;
 148 static GdkPixmap *m_outboxopenhrmxpm;
 149 static GdkBitmap *m_outboxopenhrmxpmmask;
 150 static GdkPixmap *m_folderxpm;
 151 static GdkBitmap *m_folderxpmmask;
 152 static GdkPixmap *m_folderhrmxpm;
 153 static GdkBitmap *m_folderhrmxpmmask;
 154 static GdkPixmap *m_folderopenxpm;
 155 static GdkBitmap *m_folderopenxpmmask;
 156 static GdkPixmap *m_folderopenhrmxpm;
 157 static GdkBitmap *m_folderopenhrmxpmmask;
 158 static GdkPixmap *m_trashopenxpm;
 159 static GdkBitmap *m_trashopenxpmmask;
 160 static GdkPixmap *m_trashopenhrmxpm;
 161 static GdkBitmap *m_trashopenhrmxpmmask;
 162 static GdkPixmap *m_trashxpm;
 163 static GdkBitmap *m_trashxpmmask;
 164 static GdkPixmap *m_trashhrmxpm;
 165 static GdkBitmap *m_trashhrmxpmmask;
 166 static GdkPixmap *m_queuexpm;
 167 static GdkBitmap *m_queuexpmmask;
 168 static GdkPixmap *m_queuehrmxpm;
 169 static GdkBitmap *m_queuehrmxpmmask;
 170 static GdkPixmap *m_queueopenxpm;
 171 static GdkBitmap *m_queueopenxpmmask;
 172 static GdkPixmap *m_queueopenhrmxpm;
 173 static GdkBitmap *m_queueopenhrmxpmmask;
 174 static GdkPixmap *m_draftsxpm;
 175 static GdkBitmap *m_draftsxpmmask;
 176 static GdkPixmap *m_draftsopenxpm;
 177 static GdkBitmap *m_draftsopenxpmmask;
 178
 179 static GdkPixmap *newxpm;
 180 static GdkBitmap *newxpmmask;
 181 static GdkPixmap *unreadxpm;
 182 static GdkBitmap *unreadxpmmask;
 183 static GdkPixmap *readxpm;
 184 static GdkBitmap *readxpmmask;
 185
 186
 187 static void folderview_select_node       (FolderView    *folderview,
 188                                           GtkCTreeNode  *node);
 189 static void folderview_set_folders       (FolderView    *folderview);
 190 static void folderview_sort_folders      (FolderView    *folderview,
 191                                           GtkCTreeNode  *root,
 192                                           Folder        *folder);
 193 static void folderview_append_folder     (FolderView    *folderview,
 194                                           Folder        *folder);
 195 static void folderview_update_node       (FolderView    *folderview,
 196                                           GtkCTreeNode  *node);
 197
 198 static gint folderview_clist_compare    (GtkCList       *clist,
 199                                          gconstpointer   ptr1,
 200                                          gconstpointer   ptr2);
 201
 202 /* callback functions */
 203 static gboolean folderview_button_pressed       (GtkWidget      *ctree,
 204                                                  GdkEventButton *event,
 205                                                  FolderView     *folderview);
 206 static gboolean folderview_button_released      (GtkWidget      *ctree,
 207                                                  GdkEventButton *event,
 208                                                  FolderView     *folderview);
 209 static gboolean folderview_key_pressed  (GtkWidget      *widget,
 210                                          GdkEventKey    *event,
 211                                          FolderView     *folderview);
 212 static void folderview_selected         (GtkCTree       *ctree,
 213                                          GtkCTreeNode   *row,
 214                                          gint            column,
 215                                          FolderView     *folderview);
 216 static void folderview_tree_expanded    (GtkCTree       *ctree,
 217                                          GtkCTreeNode   *node,
 218                                          FolderView     *folderview);
 219 static void folderview_tree_collapsed   (GtkCTree       *ctree,
 220                                          GtkCTreeNode   *node,
 221                                          FolderView     *folderview);
 222 static void folderview_popup_close      (GtkMenuShell   *menu_shell,
 223                                          FolderView     *folderview);
 224 static void folderview_col_resized      (GtkCList       *clist,
 225                                          gint            column,
 226                                          gint            width,
 227                                          FolderView     *folderview);
 228
 229 static void mark_all_read_cb            (FolderView    *folderview,
 230                                          guint           action,
 231                                          GtkWidget      *widget);
 232
 233 static void folderview_empty_trash_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
 284 GHashTable *folderview_popups;
 285
 286 static GtkItemFactoryEntry folderview_common_popup_entries[] =
 287 {
 288         {N_("/Mark all re_ad"),         NULL, mark_all_read_cb, 0, NULL},
 289         {N_("/_Search folder..."),      NULL, folderview_search_cb, 0, NULL},
 290         {N_("/_Properties..."),         NULL, folderview_property_cb, 0, NULL},
 291         {N_("/Process_ing..."),         NULL, folderview_processing_cb, 0, NULL},
 292 };
 293
 294 static GtkItemFactoryEntry folder_view_trash_popup_entries[] = {
 295         {N_("/------"),                 NULL, NULL, 0, "<Separator>"},
 296         {N_("/Empty _trash..."),        NULL, folderview_empty_trash_cb, 0, NULL},
 297 };
 298
 299
 300 GtkTargetEntry folderview_drag_types[] =
 301 {
 302         {"text/plain", GTK_TARGET_SAME_APP, TARGET_DUMMY}
 303 };
 304
 305 void folderview_initialize(void)
 306 {
 307         FolderViewPopup *fpopup;
 308         guint i, n_entries;
 309         GSList *entries = NULL;
 310
 311         fpopup = g_new0(FolderViewPopup, 1);
 312
 313         n_entries = sizeof(folderview_common_popup_entries) /
 314                 sizeof(folderview_common_popup_entries[0]);
 315         for (i = 0; i < n_entries; i++)
 316                 entries = g_slist_append(entries, &folderview_common_popup_entries[i]);
 317
 318         fpopup->klass = "common";
 319         fpopup->path = "<CommonFolder>";
 320         fpopup->entries = entries;
 321         fpopup->set_sensitivity = NULL;
 322
 323         folderview_popups = g_hash_table_new(g_str_hash, g_str_equal);
 324         g_hash_table_insert(folderview_popups, "common", fpopup);
 325 }
 326
 327 static GtkItemFactory *create_ifactory(FolderView *folderview, FolderViewPopup *fpopup)
 328 {
 329         GSList *entries;
 330         GtkItemFactory *factory;
 331         FolderViewPopup *fpopup_common;
 332         GtkWidget *popup;
 333
 334         factory = gtk_item_factory_new(GTK_TYPE_MENU, fpopup->path, NULL);
 335         gtk_item_factory_set_translate_func(factory, menu_translate,
 336                                             NULL, NULL);
 337
 338         for (entries = fpopup->entries; entries != NULL; entries = g_slist_next(entries))
 339                 gtk_item_factory_create_item(factory, entries->data, folderview, 1);
 340
 341         fpopup_common = g_hash_table_lookup(folderview_popups, "common");
 342         if (fpopup_common != fpopup)
 343                 for (entries = fpopup_common->entries; entries != NULL; entries = g_slist_next(entries))
 344                         gtk_item_factory_create_item(factory, entries->data, folderview, 1);
 345
 346         popup = gtk_item_factory_get_widget(factory, fpopup->path);
 347         g_signal_connect(G_OBJECT(popup), "selection_done",
 348                          G_CALLBACK(folderview_popup_close),
 349                          folderview);
 350
 351         return factory;
 352 }
 353
 354 static void create_ifactories(gpointer key, gpointer value, gpointer data)
 355 {
 356         FolderView *folderview = data;
 357         FolderViewPopup *fpopup = value;
 358         GtkItemFactory *factory;
 359
 360         factory = create_ifactory(folderview, fpopup);
 361         g_hash_table_insert(folderview->popups, fpopup->klass, factory);
 362 }
 363
 364 FolderView *folderview_create(void)
 365 {
 366         FolderView *folderview;
 367         GtkWidget *scrolledwin;
 368         GtkWidget *ctree;
 369         gchar *titles[N_FOLDER_COLS];
 370         gint i;
 371
 372         debug_print("Creating folder view...\n");
 373         folderview = g_new0(FolderView, 1);
 374
 375         titles[COL_FOLDER] = _("Folder");
 376         titles[COL_NEW]    = _("New");
 377         titles[COL_UNREAD] = _("Unread");
 378         titles[COL_TOTAL]  = _("#");
 379
 380         scrolledwin = gtk_scrolled_window_new(NULL, NULL);
 381         gtk_scrolled_window_set_policy
 382                 (GTK_SCROLLED_WINDOW(scrolledwin),
 383                  GTK_POLICY_AUTOMATIC,
 384                  prefs_common.folderview_vscrollbar_policy);
 385         gtk_widget_set_size_request(scrolledwin,
 386                              prefs_common.folderview_width,
 387                              prefs_common.folderview_height);
 388
 389         ctree = gtk_sctree_new_with_titles(N_FOLDER_COLS, COL_FOLDER, titles);
 390
 391         gtk_container_add(GTK_CONTAINER(scrolledwin), ctree);
 392         gtk_clist_set_selection_mode(GTK_CLIST(ctree), GTK_SELECTION_BROWSE);
 393         gtk_clist_set_column_justification(GTK_CLIST(ctree), COL_NEW,
 394                                            GTK_JUSTIFY_RIGHT);
 395         gtk_clist_set_column_justification(GTK_CLIST(ctree), COL_UNREAD,
 396                                            GTK_JUSTIFY_RIGHT);
 397         gtk_clist_set_column_justification(GTK_CLIST(ctree), COL_TOTAL,
 398                                            GTK_JUSTIFY_RIGHT);
 399         gtk_clist_set_column_width(GTK_CLIST(ctree), COL_FOLDER,
 400                                    prefs_common.folder_col_folder);
 401         gtk_clist_set_column_width(GTK_CLIST(ctree), COL_NEW,
 402                                    prefs_common.folder_col_new);
 403         gtk_clist_set_column_width(GTK_CLIST(ctree), COL_UNREAD,
 404                                    prefs_common.folder_col_unread);
 405         gtk_clist_set_column_width(GTK_CLIST(ctree), COL_TOTAL,
 406                                    prefs_common.folder_col_total);
 407         gtk_ctree_set_line_style(GTK_CTREE(ctree), GTK_CTREE_LINES_DOTTED);
 408         gtk_ctree_set_expander_style(GTK_CTREE(ctree),
 409                                      GTK_CTREE_EXPANDER_SQUARE);
 410         gtk_ctree_set_indent(GTK_CTREE(ctree), CTREE_INDENT);
 411         gtk_clist_set_compare_func(GTK_CLIST(ctree), folderview_clist_compare);
 412
 413         /* create popup factories */
 414         folderview->popups = g_hash_table_new(g_str_hash, g_str_equal);
 415         g_hash_table_foreach(folderview_popups, create_ifactories, folderview);
 416
 417         /* don't let title buttons take key focus */
 418         for (i = 0; i < N_FOLDER_COLS; i++)
 419                 GTK_WIDGET_UNSET_FLAGS(GTK_CLIST(ctree)->column[i].button,
 420                                        GTK_CAN_FOCUS);
 421
 422
 423         g_signal_connect(G_OBJECT(ctree), "key_press_event",
 424                          G_CALLBACK(folderview_key_pressed),
 425                          folderview);
 426         g_signal_connect(G_OBJECT(ctree), "button_press_event",
 427                          G_CALLBACK(folderview_button_pressed),
 428                          folderview);
 429         g_signal_connect(G_OBJECT(ctree), "button_release_event",
 430                          G_CALLBACK(folderview_button_released),
 431                          folderview);
 432         g_signal_connect(G_OBJECT(ctree), "tree_select_row",
 433                          G_CALLBACK(folderview_selected), folderview);
 434         g_signal_connect(G_OBJECT(ctree), "start_drag",
 435                          G_CALLBACK(folderview_start_drag), folderview);
 436         g_signal_connect(G_OBJECT(ctree), "drag_data_get",
 437                          G_CALLBACK(folderview_drag_data_get),
 438                          folderview);
 439
 440         g_signal_connect_after(G_OBJECT(ctree), "tree_expand",
 441                                G_CALLBACK(folderview_tree_expanded),
 442                                folderview);
 443         g_signal_connect_after(G_OBJECT(ctree), "tree_collapse",
 444                                G_CALLBACK(folderview_tree_collapsed),
 445                                folderview);
 446
 447         g_signal_connect(G_OBJECT(ctree), "resize_column",
 448                          G_CALLBACK(folderview_col_resized),
 449                          folderview);
 450
 451         /* drop callback */
 452         gtk_drag_dest_set(ctree, GTK_DEST_DEFAULT_ALL & ~GTK_DEST_DEFAULT_HIGHLIGHT,
 453                           summary_drag_types, 1,
 454                           GDK_ACTION_MOVE | GDK_ACTION_COPY | GDK_ACTION_DEFAULT);
 455         g_signal_connect(G_OBJECT(ctree), "drag_motion",
 456                          G_CALLBACK(folderview_drag_motion_cb),
 457                          folderview);
 458         g_signal_connect(G_OBJECT(ctree), "drag_leave",
 459                          G_CALLBACK(folderview_drag_leave_cb),
 460                          folderview);
 461         g_signal_connect(G_OBJECT(ctree), "drag_data_received",
 462                          G_CALLBACK(folderview_drag_received_cb),
 463                          folderview);
 464         g_signal_connect(G_OBJECT(ctree), "drag_end",
 465                          G_CALLBACK(folderview_drag_end_cb),
 466                          folderview);
 467
 468         folderview->scrolledwin  = scrolledwin;
 469         folderview->ctree        = ctree;
 470
 471         folderview->folder_update_callback_id =
 472                 hooks_register_hook(FOLDER_UPDATE_HOOKLIST, folderview_update_folder, (gpointer) folderview);
 473         folderview->folder_item_update_callback_id =
 474                 hooks_register_hook(FOLDER_ITEM_UPDATE_HOOKLIST, folderview_update_item_claws, (gpointer) folderview);
 475
 476         gtk_widget_show_all(scrolledwin);
 477
 478         folderview->target_list = gtk_target_list_new(folderview_drag_types, 1);
 479         folderview_list = g_list_append(folderview_list, folderview);
 480
 481         return folderview;
 482 }
 483
 484 void folderview_init(FolderView *folderview)
 485 {
 486         GtkWidget *ctree = folderview->ctree;
 487         GtkWidget *label_new;
 488         GtkWidget *label_unread;
 489         GtkWidget *label_total;
 490         GtkWidget *hbox_new;
 491         GtkWidget *hbox_unread;
 492         GtkWidget *hbox_total;
 493
 494         gtk_widget_realize(ctree);
 495         stock_pixmap_gdk(ctree, STOCK_PIXMAP_INBOX_CLOSE, &inboxxpm, &inboxxpmmask);
 496         stock_pixmap_gdk(ctree, STOCK_PIXMAP_INBOX_CLOSE_HRM, &inboxhrmxpm, &inboxhrmxpmmask);
 497         stock_pixmap_gdk(ctree, STOCK_PIXMAP_INBOX_OPEN, &inboxopenxpm, &inboxopenxpmmask);
 498         stock_pixmap_gdk(ctree, STOCK_PIXMAP_INBOX_OPEN_HRM, &inboxopenhrmxpm, &inboxopenhrmxpmmask);
 499         stock_pixmap_gdk(ctree, STOCK_PIXMAP_OUTBOX_CLOSE, &outboxxpm, &outboxxpmmask);
 500         stock_pixmap_gdk(ctree, STOCK_PIXMAP_OUTBOX_CLOSE_HRM, &outboxhrmxpm, &outboxhrmxpmmask);
 501         stock_pixmap_gdk(ctree, STOCK_PIXMAP_OUTBOX_OPEN, &outboxopenxpm, &outboxopenxpmmask);
 502         stock_pixmap_gdk(ctree, STOCK_PIXMAP_OUTBOX_OPEN_HRM, &outboxopenhrmxpm, &outboxopenhrmxpmmask);
 503         stock_pixmap_gdk(ctree, STOCK_PIXMAP_DIR_CLOSE, &folderxpm, &folderxpmmask);
 504         stock_pixmap_gdk(ctree, STOCK_PIXMAP_DIR_CLOSE_HRM, &folderhrmxpm, &folderhrmxpmmask);
 505         stock_pixmap_gdk(ctree, STOCK_PIXMAP_DIR_OPEN, &folderopenxpm, &folderopenxpmmask);
 506         stock_pixmap_gdk(ctree, STOCK_PIXMAP_DIR_OPEN_HRM, &folderopenhrmxpm, &folderopenhrmxpmmask);
 507         stock_pixmap_gdk(ctree, STOCK_PIXMAP_TRASH_OPEN, &trashopenxpm, &trashopenxpmmask);
 508         stock_pixmap_gdk(ctree, STOCK_PIXMAP_TRASH_OPEN_HRM, &trashopenhrmxpm, &trashopenhrmxpmmask);
 509         stock_pixmap_gdk(ctree, STOCK_PIXMAP_TRASH_CLOSE, &trashxpm, &trashxpmmask);
 510         stock_pixmap_gdk(ctree, STOCK_PIXMAP_TRASH_CLOSE_HRM, &trashhrmxpm, &trashhrmxpmmask);
 511         stock_pixmap_gdk(ctree, STOCK_PIXMAP_QUEUE_CLOSE, &queuexpm, &queuexpmmask);
 512         stock_pixmap_gdk(ctree, STOCK_PIXMAP_QUEUE_CLOSE_HRM, &queuehrmxpm, &queuehrmxpmmask);
 513         stock_pixmap_gdk(ctree, STOCK_PIXMAP_QUEUE_OPEN, &queueopenxpm, &queueopenxpmmask);
 514         stock_pixmap_gdk(ctree, STOCK_PIXMAP_QUEUE_OPEN_HRM, &queueopenhrmxpm, &queueopenhrmxpmmask);
 515         stock_pixmap_gdk(ctree, STOCK_PIXMAP_DRAFTS_CLOSE, &draftsxpm, &draftsxpmmask);
 516         stock_pixmap_gdk(ctree, STOCK_PIXMAP_DRAFTS_OPEN, &draftsopenxpm, &draftsopenxpmmask);
 517         stock_pixmap_gdk(ctree, STOCK_PIXMAP_DIR_NOSELECT, &noselectxpm, &noselectxpmmask);
 518
 519         stock_pixmap_gdk(ctree, STOCK_PIXMAP_INBOX_CLOSE_MARK, &m_inboxxpm, &m_inboxxpmmask);
 520         stock_pixmap_gdk(ctree, STOCK_PIXMAP_INBOX_CLOSE_HRM_MARK, &m_inboxhrmxpm, &m_inboxhrmxpmmask);
 521         stock_pixmap_gdk(ctree, STOCK_PIXMAP_INBOX_OPEN_MARK, &m_inboxopenxpm, &m_inboxopenxpmmask);
 522         stock_pixmap_gdk(ctree, STOCK_PIXMAP_INBOX_OPEN_HRM_MARK, &m_inboxopenhrmxpm, &m_inboxopenhrmxpmmask);
 523         stock_pixmap_gdk(ctree, STOCK_PIXMAP_OUTBOX_CLOSE_MARK, &m_outboxxpm, &m_outboxxpmmask);
 524         stock_pixmap_gdk(ctree, STOCK_PIXMAP_OUTBOX_CLOSE_HRM_MARK, &m_outboxhrmxpm, &m_outboxhrmxpmmask);
 525         stock_pixmap_gdk(ctree, STOCK_PIXMAP_OUTBOX_OPEN_MARK, &m_outboxopenxpm, &m_outboxopenxpmmask);
 526         stock_pixmap_gdk(ctree, STOCK_PIXMAP_OUTBOX_OPEN_HRM_MARK, &m_outboxopenhrmxpm, &m_outboxopenhrmxpmmask);
 527         stock_pixmap_gdk(ctree, STOCK_PIXMAP_DIR_CLOSE_MARK, &m_folderxpm, &m_folderxpmmask);
 528         stock_pixmap_gdk(ctree, STOCK_PIXMAP_DIR_CLOSE_HRM_MARK, &m_folderhrmxpm, &m_folderhrmxpmmask);
 529         stock_pixmap_gdk(ctree, STOCK_PIXMAP_DIR_OPEN_MARK, &m_folderopenxpm, &m_folderopenxpmmask);
 530         stock_pixmap_gdk(ctree, STOCK_PIXMAP_DIR_OPEN_HRM_MARK, &m_folderopenhrmxpm, &m_folderopenhrmxpmmask);
 531         stock_pixmap_gdk(ctree, STOCK_PIXMAP_TRASH_OPEN_MARK, &m_trashopenxpm, &m_trashopenxpmmask);
 532         stock_pixmap_gdk(ctree, STOCK_PIXMAP_TRASH_OPEN_HRM_MARK, &m_trashopenhrmxpm, &m_trashopenhrmxpmmask);
 533         stock_pixmap_gdk(ctree, STOCK_PIXMAP_TRASH_CLOSE_MARK, &m_trashxpm, &m_trashxpmmask);
 534         stock_pixmap_gdk(ctree, STOCK_PIXMAP_TRASH_CLOSE_HRM_MARK, &m_trashhrmxpm, &m_trashhrmxpmmask);
 535         stock_pixmap_gdk(ctree, STOCK_PIXMAP_QUEUE_CLOSE_MARK, &m_queuexpm, &m_queuexpmmask);
 536         stock_pixmap_gdk(ctree, STOCK_PIXMAP_QUEUE_CLOSE_HRM_MARK, &m_queuehrmxpm, &m_queuehrmxpmmask);
 537         stock_pixmap_gdk(ctree, STOCK_PIXMAP_QUEUE_OPEN_MARK, &m_queueopenxpm, &m_queueopenxpmmask);
 538         stock_pixmap_gdk(ctree, STOCK_PIXMAP_QUEUE_OPEN_HRM_MARK, &m_queueopenhrmxpm, &m_queueopenhrmxpmmask);
 539         stock_pixmap_gdk(ctree, STOCK_PIXMAP_DRAFTS_CLOSE_MARK, &m_draftsxpm, &m_draftsxpmmask);
 540         stock_pixmap_gdk(ctree, STOCK_PIXMAP_DRAFTS_OPEN_MARK, &m_draftsopenxpm, &m_draftsopenxpmmask);
 541
 542         /* CLAWS: titles for "New" and "Unread" show new & unread pixmaps
 543          * instead text (text overflows making them unreadable and ugly) */
 544         stock_pixmap_gdk(ctree, STOCK_PIXMAP_NEW,
 545                          &newxpm, &newxpmmask);
 546         stock_pixmap_gdk(ctree, STOCK_PIXMAP_UNREAD,
 547                          &unreadxpm, &unreadxpmmask);
 548         stock_pixmap_gdk(ctree, STOCK_PIXMAP_READ,
 549                          &readxpm, &readxpmmask);
 550
 551         label_new = gtk_pixmap_new(newxpm, newxpmmask);
 552         label_unread = gtk_pixmap_new(unreadxpm, unreadxpmmask);
 553         label_total = gtk_pixmap_new(readxpm, readxpmmask);
 554
 555         hbox_new = gtk_hbox_new(FALSE, 4);
 556         hbox_unread = gtk_hbox_new(FALSE, 4);
 557         hbox_total = gtk_hbox_new(FALSE, 4);
 558
 559         /* left justified */
 560         gtk_box_pack_start(GTK_BOX(hbox_new), label_new, TRUE, TRUE, 0);
 561         gtk_misc_set_alignment (GTK_MISC (label_new), 1, 0.5);
 562         gtk_box_pack_start(GTK_BOX(hbox_unread), label_unread, TRUE, TRUE, 0);
 563         gtk_misc_set_alignment (GTK_MISC (label_unread), 1, 0.5);
 564         gtk_box_pack_start(GTK_BOX(hbox_total), label_total, TRUE, TRUE, 0);
 565         gtk_misc_set_alignment (GTK_MISC (label_total), 1, 0.5);
 566
 567         gtk_widget_show_all(hbox_new);
 568         gtk_widget_show_all(hbox_unread);
 569         gtk_widget_show_all(hbox_total);
 570
 571         gtk_clist_set_column_widget(GTK_CLIST(ctree),COL_NEW,hbox_new);
 572         gtk_clist_set_column_widget(GTK_CLIST(ctree),COL_UNREAD,hbox_unread);
 573         gtk_clist_set_column_widget(GTK_CLIST(ctree),COL_TOTAL,hbox_total);
 574
 575         if (!normal_style) {
 576                 PangoFontDescription *font_desc;
 577                 normal_style = gtk_style_copy(gtk_widget_get_style(ctree));
 578                 font_desc = pango_font_description_from_string(NORMAL_FONT);
 579                 if (font_desc) {
 580                         if (normal_style->font_desc)
 581                                 pango_font_description_free
 582                                         (normal_style->font_desc);
 583                         normal_style->font_desc = font_desc;
 584                 }
 585                 normal_color_style = gtk_style_copy(normal_style);
 586                 normal_color_style->fg[GTK_STATE_NORMAL] = folderview->color_new;
 587
 588                 gtk_widget_set_style(ctree, normal_style);
 589         }
 590
 591         if (!bold_style) {
 592                 PangoFontDescription *font_desc;
 593                 bold_style = gtk_style_copy(gtk_widget_get_style(ctree));
 594                 font_desc = pango_font_description_from_string(BOLD_FONT);
 595                 if (font_desc) {
 596                         if (bold_style->font_desc)
 597                                 pango_font_description_free
 598                                         (bold_style->font_desc);
 599                         bold_style->font_desc = font_desc;
 600                 }
 601                 pango_font_description_set_weight
 602                         (bold_style->font_desc, PANGO_WEIGHT_BOLD);
 603                 bold_color_style = gtk_style_copy(bold_style);
 604                 bold_color_style->fg[GTK_STATE_NORMAL] = folderview->color_new;
 605
 606                 bold_tgtfold_style = gtk_style_copy(bold_style);
 607                 bold_tgtfold_style->fg[GTK_STATE_NORMAL] = folderview->color_op;
 608         }
 609 }
 610
 611 void folderview_set(FolderView *folderview)
 612 {
 613         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
 614         MainWindow *mainwin = folderview->mainwin;
 615
 616         debug_print("Setting folder info...\n");
 617         STATUSBAR_PUSH(mainwin, _("Setting folder info..."));
 618
 619         main_window_cursor_wait(mainwin);
 620
 621         folderview->selected = NULL;
 622         folderview->opened = NULL;
 623
 624         gtk_clist_freeze(GTK_CLIST(ctree));
 625         gtk_clist_clear(GTK_CLIST(ctree));
 626         gtk_clist_thaw(GTK_CLIST(ctree));
 627         gtk_clist_freeze(GTK_CLIST(ctree));
 628
 629         folderview_set_folders(folderview);
 630
 631         gtk_clist_thaw(GTK_CLIST(ctree));
 632         main_window_cursor_normal(mainwin);
 633         STATUSBAR_POP(mainwin);
 634 }
 635
 636 void folderview_set_all(void)
 637 {
 638         GList *list;
 639
 640         for (list = folderview_list; list != NULL; list = list->next)
 641                 folderview_set((FolderView *)list->data);
 642 }
 643
 644 void folderview_select(FolderView *folderview, FolderItem *item)
 645 {
 646         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
 647         GtkCTreeNode *node;
 648         GtkCTreeNode *old_selected = folderview->selected;
 649
 650         if (!item) return;
 651
 652         node = gtk_ctree_find_by_row_data(ctree, NULL, item);
 653         if (node) folderview_select_node(folderview, node);
 654
 655         if (old_selected != node)
 656                 folder_update_op_count();
 657 }
 658
 659 static void mark_all_read_cb(FolderView *folderview, guint action,
 660                              GtkWidget *widget)
 661 {
 662         FolderItem *item;
 663
 664         item = folderview_get_selected_item(folderview);
 665         if (item == NULL)
 666                 return;
 667
 668         summary_lock(folderview->summaryview);
 669         folder_item_update_freeze();
 670         if (folderview->summaryview->folder_item == item)
 671                 gtk_clist_freeze(GTK_CLIST(folderview->summaryview->ctree));
 672         folderutils_mark_all_read(item);
 673         if (folderview->summaryview->folder_item == item)
 674                 gtk_clist_thaw(GTK_CLIST(folderview->summaryview->ctree));
 675         folder_item_update_thaw();
 676         summary_unlock(folderview->summaryview);
 677 }
 678
 679 static void folderview_select_node(FolderView *folderview, GtkCTreeNode *node)
 680 {
 681         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
 682
 683         g_return_if_fail(node != NULL);
 684
 685         folderview->open_folder = TRUE;
 686         gtkut_ctree_set_focus_row(ctree, node);
 687         gtk_ctree_select(ctree, node);
 688         if (folderview->summaryview->folder_item &&
 689             folderview->summaryview->folder_item->total_msgs > 0)
 690                 gtk_widget_grab_focus(folderview->summaryview->ctree);
 691         else
 692                 gtk_widget_grab_focus(folderview->ctree);
 693
 694         gtkut_ctree_expand_parent_all(ctree, node);
 695 }
 696
 697 void folderview_unselect(FolderView *folderview)
 698 {
 699         if (folderview->opened && !GTK_CTREE_ROW(folderview->opened)->children)
 700                 gtk_ctree_collapse
 701                         (GTK_CTREE(folderview->ctree), folderview->opened);
 702
 703         folderview->selected = folderview->opened = NULL;
 704 }
 705
 706 static GtkCTreeNode *folderview_find_next_unread(GtkCTree *ctree,
 707                                                  GtkCTreeNode *node)
 708 {
 709         FolderItem *item;
 710
 711         if (node)
 712                 node = gtkut_ctree_node_next(ctree, node);
 713         else
 714                 node = GTK_CTREE_NODE(GTK_CLIST(ctree)->row_list);
 715
 716         for (; node != NULL; node = gtkut_ctree_node_next(ctree, node)) {
 717                 item = gtk_ctree_node_get_row_data(ctree, node);
 718                 if (item && item->unread_msgs > 0 && item->stype != F_TRASH)
 719                         return node;
 720         }
 721
 722         return NULL;
 723 }
 724
 725 void folderview_select_next_unread(FolderView *folderview)
 726 {
 727         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
 728         GtkCTreeNode *node = NULL;
 729
 730         if ((node = folderview_find_next_unread(ctree, folderview->opened))
 731             != NULL) {
 732                 folderview_select_node(folderview, node);
 733                 return;
 734         }
 735
 736         if (!folderview->opened ||
 737             folderview->opened == GTK_CTREE_NODE(GTK_CLIST(ctree)->row_list))
 738                 return;
 739         /* search again from the first node */
 740         if ((node = folderview_find_next_unread(ctree, NULL)) != NULL)
 741                 folderview_select_node(folderview, node);
 742 }
 743
 744 FolderItem *folderview_get_selected_item(FolderView *folderview)
 745 {
 746         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
 747
 748         if (!folderview->selected) return NULL;
 749         return gtk_ctree_node_get_row_data(ctree, folderview->selected);
 750 }
 751
 752 void folderview_update_msg_num(FolderView *folderview, GtkCTreeNode *row)
 753 {
 754         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
 755         static GtkCTreeNode *prev_row = NULL;
 756         FolderItem *item;
 757         gint new, unread, total;
 758         gchar *new_str, *unread_str, *total_str;
 759
 760         if (!row) return;
 761
 762         item = gtk_ctree_node_get_row_data(ctree, row);
 763         if (!item) return;
 764
 765         gtk_ctree_node_get_text(ctree, row, COL_NEW, &new_str);
 766         gtk_ctree_node_get_text(ctree, row, COL_UNREAD, &unread_str);
 767         gtk_ctree_node_get_text(ctree, row, COL_TOTAL, &total_str);
 768         new = atoi(new_str);
 769         unread = atoi(unread_str);
 770         total = atoi(total_str);
 771
 772         prev_row = row;
 773
 774         folderview_update_node(folderview, row);
 775 }
 776
 777 void folderview_append_item(FolderItem *item)
 778 {
 779         GList *list;
 780
 781         g_return_if_fail(item != NULL);
 782         g_return_if_fail(item->folder != NULL);
 783         if (folder_item_parent(item)) return;
 784
 785         for (list = folderview_list; list != NULL; list = list->next) {
 786                 FolderView *folderview = (FolderView *)list->data;
 787                 GtkCTree *ctree = GTK_CTREE(folderview->ctree);
 788                 GtkCTreeNode *node, *child;
 789
 790                 node = gtk_ctree_find_by_row_data(ctree, NULL,
 791                                                   folder_item_parent(item));
 792                 if (node) {
 793                         child = gtk_ctree_find_by_row_data(ctree, node, item);
 794                         if (!child) {
 795                                 gchar *text[N_FOLDER_COLS] =
 796                                         {NULL, "0", "0", "0"};
 797
 798                                 gtk_clist_freeze(GTK_CLIST(ctree));
 799
 800                                 text[COL_FOLDER] = item->name;
 801                                 child = gtk_ctree_insert_node
 802                                         (ctree, node, NULL, text,
 803                                          FOLDER_SPACING,
 804                                          folderxpm, folderxpmmask,
 805                                          folderopenxpm, folderopenxpmmask,
 806                                          FALSE, FALSE);
 807                                 gtk_ctree_node_set_row_data(ctree, child, item);
 808                                 gtk_ctree_expand(ctree, node);
 809                                 folderview_update_node(folderview, child);
 810                                 folderview_sort_folders(folderview, node,
 811                                                         item->folder);
 812
 813                                 gtk_clist_thaw(GTK_CLIST(ctree));
 814                         }
 815                 }
 816         }
 817 }
 818
 819 static void folderview_set_folders(FolderView *folderview)
 820 {
 821         GList *list;
 822
 823         list = folder_get_list();
 824
 825         for (; list != NULL; list = list->next)
 826                 folderview_append_folder(folderview, FOLDER(list->data));
 827 }
 828
 829 static void folderview_scan_tree_func(Folder *folder, FolderItem *item,
 830                                       gpointer data)
 831 {
 832         GList *list;
 833
 834         for (list = folderview_list; list != NULL; list = list->next) {
 835                 FolderView *folderview = (FolderView *)list->data;
 836                 MainWindow *mainwin = folderview->mainwin;
 837                 gchar *str;
 838
 839                 if (item->path)
 840                         str = g_strdup_printf(_("Scanning folder %s%c%s ..."),
 841                                               item->folder->name, G_DIR_SEPARATOR,
 842                                               item->path);
 843                 else
 844                         str = g_strdup_printf(_("Scanning folder %s ..."),
 845                                               item->folder->name);
 846
 847                 STATUSBAR_PUSH(mainwin, str);
 848                 STATUSBAR_POP(mainwin);
 849                 g_free(str);
 850         }
 851 }
 852
 853 static GtkWidget *label_window_create(const gchar *str)
 854 {
 855         GtkWidget *window;
 856         GtkWidget *label;
 857
 858         window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 859         gtk_widget_set_size_request(window, 380, 60);
 860         gtk_container_set_border_width(GTK_CONTAINER(window), 8);
 861         gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);
 862         gtk_window_set_title(GTK_WINDOW(window), str);
 863         gtk_window_set_modal(GTK_WINDOW(window), TRUE);
 864         gtk_window_set_resizable(GTK_WINDOW(window), FALSE);
 865         manage_window_set_transient(GTK_WINDOW(window));
 866
 867         label = gtk_label_new(str);
 868         gtk_container_add(GTK_CONTAINER(window), label);
 869         gtk_widget_show(label);
 870
 871         gtk_widget_show_now(window);
 872
 873         return window;
 874 }
 875
 876 void folderview_rescan_tree(Folder *folder)
 877 {
 878         GtkWidget *window;
 879
 880         g_return_if_fail(folder != NULL);
 881
 882         if (!folder->klass->scan_tree) return;
 883
 884         inc_lock();
 885         window = label_window_create(_("Rebuilding folder tree..."));
 886
 887         folder_set_ui_func(folder, folderview_scan_tree_func, NULL);
 888         folder_scan_tree(folder);
 889         folder_set_ui_func(folder, NULL, NULL);
 890
 891         folderview_set_all();
 892
 893         gtk_widget_destroy(window);
 894         inc_unlock();
 895 }
 896
 897 /** folderview_check_new()
 898  *  Scan and update the folder and return the
 899  *  count the number of new messages since last check.
 900  *  \param folder the folder to check for new messages
 901  *  \return the number of new messages since last check
 902  */
 903 gint folderview_check_new(Folder *folder)
 904 {
 905         GList *list;
 906         FolderItem *item;
 907         FolderView *folderview;
 908         GtkCTree *ctree;
 909         GtkCTreeNode *node;
 910         gint new_msgs = 0;
 911         gint former_new_msgs = 0;
 912         gint former_new = 0;
 913
 914         for (list = folderview_list; list != NULL; list = list->next) {
 915                 folderview = (FolderView *)list->data;
 916                 ctree = GTK_CTREE(folderview->ctree);
 917
 918                 inc_lock();
 919                 main_window_lock(folderview->mainwin);
 920                 gtk_widget_set_sensitive(folderview->ctree, FALSE);
 921
 922                 for (node = GTK_CTREE_NODE(GTK_CLIST(ctree)->row_list);
 923                      node != NULL; node = gtkut_ctree_node_next(ctree, node)) {
 924                         item = gtk_ctree_node_get_row_data(ctree, node);
 925                         if (!item || !item->path || !item->folder) continue;
 926                         if (item->no_select) continue;
 927                         if (folder && folder != item->folder) continue;
 928                         if (!folder && !FOLDER_IS_LOCAL(item->folder)) continue;
 929                         if (!item->prefs->newmailcheck) continue;
 930
 931                         folderview_scan_tree_func(item->folder, item, NULL);
 932                         former_new = item->new_msgs;
 933
 934                         if (folder_item_scan(item) < 0) {
 935                                 summaryview_unlock(folderview->summaryview, item);
 936                                 if (folder && !FOLDER_IS_LOCAL(folder))
 937                                         break;
 938                         }
 939
 940                         folderview_update_node(folderview, node);
 941                         new_msgs += item->new_msgs;
 942                         former_new_msgs += former_new;
 943                 }
 944
 945                 gtk_widget_set_sensitive(folderview->ctree, TRUE);
 946                 main_window_unlock(folderview->mainwin);
 947                 inc_unlock();
 948         }
 949
 950         folder_write_list();
 951         /* Number of new messages since last check is the just the difference
 952          * between former_new_msgs and new_msgs. If new_msgs is less than
 953          * former_new_msgs, that would mean another session accessed the folder
 954          * and the result is not well defined.
 955          */
 956         new_msgs = (former_new_msgs < new_msgs ? new_msgs - former_new_msgs : 0);
 957         return new_msgs;
 958 }
 959
 960 void folderview_check_new_all(void)
 961 {
 962         GList *list;
 963         GtkWidget *window;
 964         FolderView *folderview;
 965
 966         folderview = (FolderView *)folderview_list->data;
 967
 968         inc_lock();
 969         main_window_lock(folderview->mainwin);
 970         window = label_window_create
 971                 (_("Checking for new messages in all folders..."));
 972
 973         list = folder_get_list();
 974         for (; list != NULL; list = list->next) {
 975                 Folder *folder = list->data;
 976
 977                 folderview_check_new(folder);
 978         }
 979
 980         folder_write_list();
 981         folderview_set_all();
 982
 983         gtk_widget_destroy(window);
 984         main_window_unlock(folderview->mainwin);
 985         inc_unlock();
 986 }
 987
 988 static gboolean folderview_have_new_children_sub(FolderView *folderview,
 989                                                  FolderItem *item,
 990                                                  gboolean in_sub)
 991 {
 992         GNode *node = item->folder->node;
 993
 994         node = g_node_find(node, G_PRE_ORDER, G_TRAVERSE_ALL, item);
 995         node = node->children;
 996
 997         if (in_sub &&
 998             (item->new_msgs > 0 ||
 999             (item->stype == F_QUEUE && item->total_msgs > 0))) {
1000                 return TRUE;
1001         }
1002
1003         while (node != NULL) {
1004                 if (node && node->data) {
1005                         FolderItem *next_item = (FolderItem*) node->data;
1006                         node = node->next;
1007                         if (folderview_have_new_children_sub(folderview,
1008                                                              next_item, TRUE))
1009                                 return TRUE;
1010                 }
1011         }
1012
1013         return FALSE;
1014 }
1015
1016 static gboolean folderview_have_new_children(FolderView *folderview,
1017                                              FolderItem *item)
1018 {
1019         return folderview_have_new_children_sub(folderview, item, FALSE);
1020 }
1021
1022 static gboolean folderview_have_unread_children_sub(FolderView *folderview,
1023                                                     FolderItem *item,
1024                                                     gboolean in_sub)
1025 {
1026         GNode *node = NULL;
1027
1028         if (!item || !item->folder || !item->folder->node)
1029                 return FALSE;
1030
1031         node = item->folder->node;
1032
1033         node = g_node_find(node, G_PRE_ORDER, G_TRAVERSE_ALL, item);
1034         node = node->children;
1035
1036         if (in_sub &&
1037             (item->unread_msgs > 0 ||
1038             (item->stype == F_QUEUE && item->total_msgs > 0))) {
1039                 return TRUE;
1040         }
1041
1042         while (node != NULL) {
1043                 if (node && node->data) {
1044                         FolderItem *next_item = (FolderItem*) node->data;
1045                         node = node->next;
1046                         if (folderview_have_unread_children_sub(folderview,
1047                                                                 next_item,
1048                                                                 TRUE))
1049                                 return TRUE;
1050                 }
1051         }
1052
1053         return FALSE;
1054 }
1055
1056 static gboolean folderview_have_unread_children(FolderView *folderview,
1057                                                 FolderItem *item)
1058 {
1059         return folderview_have_unread_children_sub(folderview, item, FALSE);
1060 }
1061
1062 static gboolean folderview_have_matching_children_sub(FolderView *folderview,
1063                                                       FolderItem *item,
1064                                                       gboolean in_sub)
1065 {
1066         GNode *node = item->folder->node;
1067
1068         node = g_node_find(node, G_PRE_ORDER, G_TRAVERSE_ALL, item);
1069         node = node->children;
1070
1071         if (in_sub && item->search_match){
1072                 return TRUE;
1073         }
1074
1075         while (node != NULL) {
1076                 if (node && node->data) {
1077                         FolderItem *next_item = (FolderItem*) node->data;
1078                         node = node->next;
1079                         if (folderview_have_matching_children_sub(folderview,
1080                                                                   next_item,
1081                                                                   TRUE))
1082                                 return TRUE;
1083                 }
1084         }
1085
1086         return FALSE;
1087 }
1088
1089 static gboolean folderview_have_matching_children(FolderView *folderview,
1090                                                   FolderItem *item)
1091 {
1092         return folderview_have_matching_children_sub(folderview, item, FALSE);
1093 }
1094
1095 static void folderview_update_node(FolderView *folderview, GtkCTreeNode *node)
1096 {
1097         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
1098         GtkStyle *style = NULL;
1099         GtkStyle *color_style = NULL;
1100         FolderItem *item;
1101         GdkPixmap *xpm, *openxpm;
1102         GdkBitmap *mask, *openmask;
1103         static GdkPixmap *searchicon;
1104         static GdkBitmap *searchmask;
1105         gboolean mark = FALSE;
1106         gchar *name;
1107         gchar *str;
1108         gboolean add_unread_mark;
1109         gboolean add_sub_match_mark;
1110         gboolean use_bold, use_color;
1111
1112         item = gtk_ctree_node_get_row_data(ctree, node);
1113         g_return_if_fail(item != NULL);
1114
1115         mark = (item->marked_msgs != 0);
1116
1117         switch (item->stype) {
1118         case F_INBOX:
1119                 if (item->hide_read_msgs) {
1120                         xpm = mark?m_inboxhrmxpm:inboxhrmxpm;
1121                         mask = mark?m_inboxhrmxpmmask:inboxhrmxpmmask;
1122                         openxpm = mark?m_inboxopenhrmxpm:inboxopenhrmxpm;
1123                         openmask = mark?m_inboxopenhrmxpmmask:inboxopenhrmxpmmask;
1124                 } else {
1125                         xpm = mark?m_inboxxpm:inboxxpm;
1126                         mask = mark?m_inboxxpmmask:inboxxpmmask;
1127                         openxpm = mark?m_inboxopenxpm:inboxopenxpm;
1128                         openmask = mark?m_inboxopenxpmmask:inboxopenxpmmask;
1129                 }
1130                 break;
1131         case F_OUTBOX:
1132                 if (item->hide_read_msgs) {
1133                         xpm = mark?m_outboxhrmxpm:outboxhrmxpm;
1134                         mask = mark?m_outboxhrmxpmmask:outboxhrmxpmmask;
1135                         openxpm = mark?m_outboxopenhrmxpm:outboxopenhrmxpm;
1136                         openmask = mark?m_outboxopenhrmxpmmask:outboxopenhrmxpmmask;
1137                 } else {
1138                         xpm = mark?m_outboxxpm:outboxxpm;
1139                         mask = mark?m_outboxxpmmask:outboxxpmmask;
1140                         openxpm = mark?m_outboxopenxpm:outboxopenxpm;
1141                         openmask = mark?m_outboxopenxpmmask:outboxopenxpmmask;
1142                 }
1143                 break;
1144         case F_QUEUE:
1145                 if (item->hide_read_msgs) {
1146                         xpm = mark?m_queuehrmxpm:queuehrmxpm;
1147                         mask = mark?m_queuehrmxpmmask:queuehrmxpmmask;
1148                         openxpm = mark?m_queueopenhrmxpm:queueopenhrmxpm;
1149                         openmask = mark?m_queueopenhrmxpmmask:queueopenhrmxpmmask;
1150                 } else {
1151                         xpm = mark?m_queuexpm:queuexpm;
1152                         mask = mark?m_queuexpmmask:queuexpmmask;
1153                         openxpm = mark?m_queueopenxpm:queueopenxpm;
1154                         openmask = mark?m_queueopenxpmmask:queueopenxpmmask;
1155                 }
1156                 break;
1157         case F_TRASH:
1158                 if (item->hide_read_msgs) {
1159                         xpm = mark?m_trashhrmxpm:trashhrmxpm;
1160                         mask = mark?m_trashhrmxpmmask:trashhrmxpmmask;
1161                         openxpm = mark?m_trashopenhrmxpm:trashopenhrmxpm;
1162                         openmask = mark?m_trashopenhrmxpmmask:trashopenhrmxpmmask;
1163                 } else {
1164                         xpm = mark?m_trashxpm:trashxpm;
1165                         mask = mark?m_trashxpmmask:trashxpmmask;
1166                         openxpm = mark?m_trashopenxpm:trashopenxpm;
1167                         openmask = mark?m_trashopenxpmmask:trashopenxpmmask;
1168                 }
1169                 break;
1170         case F_DRAFT:
1171                 xpm = mark?m_draftsxpm:draftsxpm;
1172                 mask = mark?m_draftsxpmmask:draftsxpmmask;
1173                 openxpm = mark?m_draftsopenxpm:draftsopenxpm;
1174                 openmask = mark?m_draftsopenxpmmask:draftsopenxpmmask;
1175                 break;
1176         default:
1177                 if (item->hide_read_msgs) {
1178                         xpm = mark?m_folderhrmxpm:folderhrmxpm;
1179                         mask = mark?m_folderhrmxpmmask:folderhrmxpmmask;
1180                         openxpm = mark?m_folderopenhrmxpm:folderopenhrmxpm;
1181                         openmask = mark?m_folderopenhrmxpmmask:folderopenhrmxpmmask;
1182                 } else {
1183                         xpm = mark?m_folderxpm:folderxpm;
1184                         mask = mark?m_folderxpmmask:folderxpmmask;
1185                         openxpm = mark?m_folderopenxpm:folderopenxpm;
1186                         openmask = mark?m_folderopenxpmmask:folderopenxpmmask;
1187                 }
1188         }
1189
1190         if (item->no_select) {
1191                 xpm = openxpm = noselectxpm;
1192                 mask = openmask = noselectxpmmask;
1193         }
1194
1195         name = folder_item_get_name(item);
1196
1197         if (!GTK_CTREE_ROW(node)->expanded) {
1198                 add_unread_mark = folderview_have_unread_children(
1199                                         folderview, item);
1200                 add_sub_match_mark = folderview_have_matching_children(
1201                                         folderview, item);
1202         } else {
1203                 add_unread_mark = FALSE;
1204                 add_sub_match_mark = FALSE;
1205         }
1206
1207         if (item->search_match) {
1208                 if (!searchicon) {
1209                         stock_pixmap_gdk(folderview->ctree, STOCK_PIXMAP_QUICKSEARCH,
1210                          &searchicon, &searchmask);
1211                 }
1212                 xpm = openxpm = searchicon;
1213                 mask = openmask = searchmask;
1214         }
1215
1216         if (item->stype == F_QUEUE && item->total_msgs > 0 &&
1217             prefs_common.display_folder_unread) {
1218                 str = g_strdup_printf("%s (%d%s)", name, item->total_msgs,
1219                                       add_unread_mark ? "+" : "");
1220                 gtk_ctree_set_node_info(ctree, node, str, FOLDER_SPACING,
1221                                         xpm, mask, openxpm, openmask,
1222                                         FALSE, GTK_CTREE_ROW(node)->expanded);
1223                 g_free(str);
1224         } else if (((item->unread_msgs > 0 || add_unread_mark) &&
1225                     prefs_common.display_folder_unread)
1226                    || add_sub_match_mark) {
1227
1228                 if (item->unread_msgs > 0)
1229                         str = g_strdup_printf("%s (%d%s%s)", name, item->unread_msgs,
1230                                               add_unread_mark || add_sub_match_mark ? "+" : "",
1231                                               item->unreadmarked_msgs > 0 ? "!":"");
1232                 else
1233                         str = g_strdup_printf("%s (+)", name);
1234                 gtk_ctree_set_node_info(ctree, node, str, FOLDER_SPACING,
1235                                         xpm, mask, openxpm, openmask,
1236                                         FALSE, GTK_CTREE_ROW(node)->expanded);
1237                 g_free(str);
1238         } else {
1239                 str = g_strdup_printf("%s%s", name,
1240                                       item->unreadmarked_msgs > 0 ? " (!)":"");
1241
1242                 gtk_ctree_set_node_info(ctree, node, str, FOLDER_SPACING,
1243                                         xpm, mask, openxpm, openmask,
1244                                         FALSE, GTK_CTREE_ROW(node)->expanded);
1245                 g_free(str);
1246         }
1247         g_free(name);
1248
1249         if (!folder_item_parent(item)) {
1250                 gtk_ctree_node_set_text(ctree, node, COL_NEW,    "-");
1251                 gtk_ctree_node_set_text(ctree, node, COL_UNREAD, "-");
1252                 gtk_ctree_node_set_text(ctree, node, COL_TOTAL,  "-");
1253         } else {
1254                 gtk_ctree_node_set_text(ctree, node, COL_NEW,    itos(item->new_msgs));
1255                 gtk_ctree_node_set_text(ctree, node, COL_UNREAD, itos(item->unread_msgs));
1256                 gtk_ctree_node_set_text(ctree, node, COL_TOTAL,  itos(item->total_msgs));
1257         }
1258
1259         if (item->stype == F_OUTBOX || item->stype == F_DRAFT ||
1260             item->stype == F_TRASH) {
1261                 use_bold = use_color = FALSE;
1262         } else if (item->stype == F_QUEUE) {
1263                 /* highlight queue folder if there are any messages */
1264                 use_bold = use_color = (item->total_msgs > 0);
1265         } else {
1266                 /* if unread messages exist, print with bold font */
1267                 use_bold = (item->unread_msgs > 0) || add_unread_mark;
1268                 /* if new messages exist, print with colored letter */
1269                 use_color =
1270                         (item->new_msgs > 0) ||
1271                         (add_unread_mark &&
1272                          folderview_have_new_children(folderview, item));
1273         }
1274
1275         gtk_ctree_node_set_foreground(ctree, node, NULL);
1276
1277         if (use_bold) {
1278                 if (item->prefs->color > 0 && !use_color) {
1279                         GdkColor gdk_color;
1280
1281                         gtkut_convert_int_to_gdk_color(item->prefs->color, &gdk_color);
1282                         color_style = gtk_style_copy(bold_style);
1283                         color_style->fg[GTK_STATE_NORMAL] = gdk_color;
1284                         style = color_style;
1285                 } else if (use_color)
1286                         style = bold_color_style;
1287                 else
1288                         style = bold_style;
1289                 if (item->op_count > 0) {
1290                         style = bold_tgtfold_style;
1291                 }
1292         } else if (use_color) {
1293                 style = normal_color_style;
1294                 gtk_ctree_node_set_foreground(ctree, node,
1295                                               &folderview->color_new);
1296         } else if (item->op_count > 0) {
1297                 style = bold_tgtfold_style;
1298         } else if (item->prefs->color > 0) {
1299                 GdkColor gdk_color;
1300                 gtkut_convert_int_to_gdk_color(item->prefs->color, &gdk_color);
1301                 color_style = gtk_style_copy(normal_style);
1302                 color_style->fg[GTK_STATE_NORMAL] = gdk_color;
1303                 style = color_style;
1304         } else {
1305                 style = normal_style;
1306         }
1307
1308         gtk_ctree_node_set_row_style(ctree, node, style);
1309
1310         if ((node = gtkut_ctree_find_collapsed_parent(ctree, node)) != NULL)
1311                 folderview_update_node(folderview, node);
1312 }
1313
1314 #if !CLAWS /* keep it here for syncs */
1315 void folderview_update_item(FolderItem *item, gboolean update_summary)
1316 {
1317         GList *list;
1318         FolderView *folderview;
1319         GtkCTree *ctree;
1320         GtkCTreeNode *node;
1321
1322         g_return_if_fail(item != NULL);
1323
1324         for (list = folderview_list; list != NULL; list = list->next) {
1325                 folderview = (FolderView *)list->data;
1326                 ctree = GTK_CTREE(folderview->ctree);
1327
1328                 node = gtk_ctree_find_by_row_data(ctree, NULL, item);
1329                 if (node) {
1330                         folderview_update_node(folderview, node);
1331                         if (update_summary && folderview->opened == node)
1332                                 summary_show(folderview->summaryview,
1333                                              item, FALSE);
1334                 }
1335         }
1336 }
1337 #endif
1338
1339 void folderview_update_search_icon(FolderItem *item, gboolean matches)
1340 {
1341         GList *list;
1342         FolderView *folderview;
1343         GtkCTree *ctree;
1344         GtkCTreeNode *node;
1345
1346         g_return_if_fail(item != NULL);
1347
1348         for (list = folderview_list; list != NULL; list = list->next) {
1349                 folderview = (FolderView *)list->data;
1350                 ctree = GTK_CTREE(folderview->ctree);
1351
1352                 node = gtk_ctree_find_by_row_data(ctree, NULL, item);
1353                 if (node) {
1354                         item->search_match = matches;
1355                         folderview_update_node(folderview, node);
1356                 }
1357         }
1358 }
1359
1360 gboolean folderview_update_item_claws(gpointer source, gpointer data)
1361 {
1362         FolderItemUpdateData *update_info = (FolderItemUpdateData *)source;
1363         FolderView *folderview = (FolderView *)data;
1364         GtkCTree *ctree;
1365         GtkCTreeNode *node;
1366         g_return_val_if_fail(update_info != NULL, TRUE);
1367         g_return_val_if_fail(update_info->item != NULL, TRUE);
1368         g_return_val_if_fail(folderview != NULL, FALSE);
1369
1370         ctree = GTK_CTREE(folderview->ctree);
1371
1372         node = gtk_ctree_find_by_row_data(ctree, NULL, update_info->item);
1373         if (node) {
1374                 if (update_info->update_flags & (F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_NAME))
1375                         folderview_update_node(folderview, node);
1376                 if ((update_info->update_flags & F_ITEM_UPDATE_CONTENT) && (folderview->opened == node))
1377                         summary_show(folderview->summaryview, update_info->item);
1378         }
1379
1380         return FALSE;
1381 }
1382
1383 static void folderview_update_item_foreach_func(gpointer key, gpointer val,
1384                                                 gpointer data)
1385 {
1386         /* CLAWS: share this joy with other hook functions ... */
1387         folder_item_update((FolderItem *)key,
1388                            (FolderItemUpdateFlags)GPOINTER_TO_INT(data));
1389 }
1390
1391 void folderview_update_item_foreach(GHashTable *table, gboolean update_summary)
1392 {
1393         GList *list;
1394         FolderItemUpdateFlags flags;
1395
1396         flags = update_summary ?  F_ITEM_UPDATE_CONTENT | F_ITEM_UPDATE_MSGCNT
1397                 : 0;
1398         for (list = folderview_list; list != NULL; list = list->next)
1399                 g_hash_table_foreach(table, folderview_update_item_foreach_func,
1400                                      GINT_TO_POINTER(flags));
1401 }
1402
1403 static gboolean folderview_gnode_func(GtkCTree *ctree, guint depth,
1404                                       GNode *gnode, GtkCTreeNode *cnode,
1405                                       gpointer data)
1406 {
1407         FolderView *folderview = (FolderView *)data;
1408         FolderItem *item = FOLDER_ITEM(gnode->data);
1409
1410         g_return_val_if_fail(item != NULL, FALSE);
1411
1412         gtk_ctree_node_set_row_data(ctree, cnode, item);
1413         folderview_update_node(folderview, cnode);
1414
1415         return TRUE;
1416 }
1417
1418 static void folderview_expand_func(GtkCTree *ctree, GtkCTreeNode *node,
1419                                    gpointer data)
1420 {
1421         FolderView *folderview = (FolderView *)data;
1422         FolderItem *item;
1423
1424         if (GTK_CTREE_ROW(node)->children) {
1425                 item = gtk_ctree_node_get_row_data(ctree, node);
1426                 g_return_if_fail(item != NULL);
1427
1428                 if (!item->collapsed)
1429                         gtk_ctree_expand(ctree, node);
1430                 else
1431                         folderview_update_node(folderview, node);
1432         }
1433 }
1434
1435 static void set_special_folder(GtkCTree *ctree, FolderItem *item,
1436                                GtkCTreeNode *root, GtkCTreeNode **prev)
1437 {
1438         if (item) {
1439                 GtkCTreeNode *node, *parent, *sibling;
1440
1441                 node = gtk_ctree_find_by_row_data(ctree, root, item);
1442                 if (!node)
1443                         g_warning("%s not found.\n", item->path);
1444                 else {
1445                         parent = GTK_CTREE_ROW(node)->parent;
1446                         if (*prev && parent == GTK_CTREE_ROW(*prev)->parent)
1447                                 sibling = GTK_CTREE_ROW(*prev)->sibling;
1448                         else
1449                                 sibling = GTK_CTREE_ROW(parent)->children;
1450                         while (sibling) {
1451                                 FolderItem *tmp;
1452
1453                                 tmp = gtk_ctree_node_get_row_data
1454                                         (ctree, sibling);
1455                                 if (tmp->stype != F_NORMAL)
1456                                         sibling = GTK_CTREE_ROW(sibling)->sibling;
1457                                 else
1458                                         break;
1459                         }
1460                         if (node != sibling)
1461                                 gtk_ctree_move(ctree, node, parent, sibling);
1462                 }
1463
1464                 *prev = node;
1465         }
1466 }
1467
1468 static void folderview_sort_folders(FolderView *folderview, GtkCTreeNode *root,
1469                                     Folder *folder)
1470 {
1471         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
1472         GtkCTreeNode *prev = NULL;
1473
1474         gtk_sctree_sort_recursive(ctree, root);
1475
1476         if (root && GTK_CTREE_ROW(root)->parent) return;
1477
1478         set_special_folder(ctree, folder->inbox, root, &prev);
1479         set_special_folder(ctree, folder->outbox, root, &prev);
1480         set_special_folder(ctree, folder->draft, root, &prev);
1481         set_special_folder(ctree, folder->queue, root, &prev);
1482         set_special_folder(ctree, folder->trash, root, &prev);
1483 }
1484
1485 static void folderview_append_folder(FolderView *folderview, Folder *folder)
1486 {
1487         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
1488         GtkCTreeNode *root;
1489
1490         g_return_if_fail(folder != NULL);
1491
1492         root = gtk_ctree_insert_gnode(ctree, NULL, NULL, folder->node,
1493                                       folderview_gnode_func, folderview);
1494         gtk_ctree_pre_recursive(ctree, root, folderview_expand_func,
1495                                 folderview);
1496         folderview_sort_folders(folderview, root, folder);
1497 }
1498
1499 /* callback functions */
1500
1501 static gboolean folderview_button_pressed(GtkWidget *ctree, GdkEventButton *event,
1502                                           FolderView *folderview)
1503 {
1504         GtkCList *clist = GTK_CLIST(ctree);
1505         gint prev_row = -1, row = -1, column = -1;
1506         FolderItem *item;
1507         Folder *folder;
1508         FolderViewPopup *fpopup;
1509         GtkItemFactory *fpopup_factory;
1510         GtkWidget *popup;
1511
1512         if (!event) return FALSE;
1513
1514         if (event->button == 1) {
1515                 folderview->open_folder = TRUE;
1516
1517                 if (event->type == GDK_2BUTTON_PRESS) {
1518                         if (clist->selection) {
1519                                 GtkCTreeNode *node;
1520
1521                                 node = GTK_CTREE_NODE(clist->selection->data);
1522                                 if (node)
1523                                         gtk_ctree_toggle_expansion(
1524                                                 GTK_CTREE(ctree),
1525                                                 node);
1526                         }
1527                 }
1528                 return FALSE;
1529         }
1530
1531         if (event->button == 2 || event->button == 3) {
1532                 /* right clicked */
1533                 if (clist->selection) {
1534                         GtkCTreeNode *node;
1535
1536                         node = GTK_CTREE_NODE(clist->selection->data);
1537                         if (node)
1538                                 prev_row = gtkut_ctree_get_nth_from_node
1539                                         (GTK_CTREE(ctree), node);
1540                 }
1541
1542                 if (!gtk_clist_get_selection_info(clist, event->x, event->y,
1543                                                   &row, &column))
1544                         return FALSE;
1545                 if (prev_row != row) {
1546                         gtk_clist_unselect_all(clist);
1547                         if (event->button == 2)
1548                                 folderview_select_node
1549                                         (folderview,
1550                                          gtk_ctree_node_nth(GTK_CTREE(ctree),
1551                                                             row));
1552                         else
1553                                 gtk_clist_select_row(clist, row, column);
1554                 }
1555         }
1556
1557         if (event->button != 3) return FALSE;
1558
1559         item = gtk_clist_get_row_data(clist, row);
1560         g_return_val_if_fail(item != NULL, FALSE);
1561         g_return_val_if_fail(item->folder != NULL, FALSE);
1562         folder = item->folder;
1563
1564         fpopup = g_hash_table_lookup(folderview_popups, folder->klass->idstr);
1565         if (fpopup != NULL)
1566                 fpopup_factory = g_hash_table_lookup(folderview->popups, folder->klass->idstr);
1567         else {
1568                 fpopup = g_hash_table_lookup(folderview_popups, "common");
1569                 fpopup_factory = g_hash_table_lookup(folderview->popups, "common");
1570         }
1571
1572         if (fpopup->set_sensitivity != NULL)
1573                 fpopup->set_sensitivity(fpopup_factory, item);
1574
1575         if (item == folder->trash &&
1576             gtk_item_factory_get_item(fpopup_factory, "/Empty trash...") == NULL) {
1577                 gtk_item_factory_create_item(fpopup_factory, &folder_view_trash_popup_entries[0], folderview, 1);
1578                 gtk_item_factory_create_item(fpopup_factory, &folder_view_trash_popup_entries[1], folderview, 1);
1579         } else if (item != folder->trash) {
1580                 gtk_item_factory_delete_entry(fpopup_factory, &folder_view_trash_popup_entries[0]);
1581                 gtk_item_factory_delete_entry(fpopup_factory, &folder_view_trash_popup_entries[1]);
1582         }
1583
1584 #define SET_SENS(name, sens) \
1585         menu_set_sensitive(fpopup_factory, name, sens)
1586
1587         SET_SENS("/Mark all read", item->unread_msgs >= 1);
1588         SET_SENS("/Search folder...", item->total_msgs >= 1 &&
1589                  folderview->selected == folderview->opened);
1590         SET_SENS("/Properties...", item->node->parent != NULL);
1591         SET_SENS("/Processing...", item->node->parent != NULL);
1592         if (item == folder->trash) {
1593                 GSList *msglist = folder_item_get_msg_list(item);
1594                 SET_SENS("/Empty trash...", msglist != NULL);
1595                 procmsg_msg_list_free(msglist);
1596         }
1597 #undef SET_SENS
1598
1599         popup = gtk_item_factory_get_widget(fpopup_factory, fpopup->path);
1600         gtk_menu_popup(GTK_MENU(popup), NULL, NULL, NULL, NULL,
1601                        event->button, event->time);
1602
1603         return FALSE;
1604 }
1605
1606 static gboolean folderview_button_released(GtkWidget *ctree, GdkEventButton *event,
1607                                            FolderView *folderview)
1608 {
1609         if (!event) return FALSE;
1610
1611         if (event->button == 1 && folderview->open_folder == FALSE &&
1612             folderview->opened != NULL) {
1613                 gtkut_ctree_set_focus_row(GTK_CTREE(ctree),
1614                                           folderview->opened);
1615                 gtk_ctree_select(GTK_CTREE(ctree), folderview->opened);
1616         }
1617
1618         return FALSE;
1619 }
1620
1621 static gboolean folderview_key_pressed(GtkWidget *widget, GdkEventKey *event,
1622                                        FolderView *folderview)
1623 {
1624         if (!event) return FALSE;
1625
1626         if (quicksearch_has_focus(folderview->summaryview->quicksearch))
1627                 return FALSE;
1628
1629         switch (event->keyval) {
1630         case GDK_Return:
1631                 if (folderview->selected) {
1632                         folderview_select_node(folderview,
1633                                                folderview->selected);
1634                 }
1635                 break;
1636         case GDK_space:
1637                 if (folderview->selected) {
1638                         if (folderview->opened == folderview->selected &&
1639                             (!folderview->summaryview->folder_item ||
1640                              folderview->summaryview->folder_item->total_msgs == 0))
1641                                 folderview_select_next_unread(folderview);
1642                         else
1643                                 folderview_select_node(folderview,
1644                                                        folderview->selected);
1645                 }
1646                 break;
1647         default:
1648                 break;
1649         }
1650
1651         return FALSE;
1652 }
1653
1654 static void folderview_selected(GtkCTree *ctree, GtkCTreeNode *row,
1655                                 gint column, FolderView *folderview)
1656 {
1657         static gboolean can_select = TRUE;      /* exclusive lock */
1658         gboolean opened;
1659         FolderItem *item;
1660         gchar *buf;
1661
1662         folderview->selected = row;
1663
1664         if (folderview->opened == row) {
1665                 folderview->open_folder = FALSE;
1666                 return;
1667         }
1668
1669         if (!can_select || summary_is_locked(folderview->summaryview)) {
1670                 gtkut_ctree_set_focus_row(ctree, folderview->opened);
1671                 gtk_ctree_select(ctree, folderview->opened);
1672                 return;
1673         }
1674
1675         if (!folderview->open_folder) return;
1676
1677         item = gtk_ctree_node_get_row_data(ctree, row);
1678         if (!item || item->no_select) return;
1679
1680         can_select = FALSE;
1681
1682         /* Save cache for old folder */
1683         /* We don't want to lose all caches if sylpheed crashed */
1684         if (folderview->opened) {
1685                 FolderItem *olditem;
1686
1687                 olditem = gtk_ctree_node_get_row_data(ctree, folderview->opened);
1688                 if (olditem) {
1689                         /* will be null if we just moved the previously opened folder */
1690                         summary_save_prefs_to_folderitem(folderview->summaryview, olditem);
1691                         folder_item_close(olditem);
1692                 }
1693         }
1694
1695         /* CLAWS: set compose button type: news folder items
1696          * always have a news folder as parent */
1697         if (item->folder)
1698                 toolbar_set_compose_button
1699                         (folderview->mainwin->toolbar,
1700                          FOLDER_TYPE(item->folder) == F_NEWS ?
1701                          COMPOSEBUTTON_NEWS : COMPOSEBUTTON_MAIL);
1702
1703         if (item->path)
1704                 debug_print("Folder %s is selected\n", item->path);
1705
1706         if (!GTK_CTREE_ROW(row)->children)
1707                 gtk_ctree_expand(ctree, row);
1708         if (folderview->opened &&
1709             !GTK_CTREE_ROW(folderview->opened)->children)
1710                 gtk_ctree_collapse(ctree, folderview->opened);
1711
1712         /* ungrab the mouse event */
1713         if (GTK_WIDGET_HAS_GRAB(ctree)) {
1714                 gtk_grab_remove(GTK_WIDGET(ctree));
1715                 if (gdk_pointer_is_grabbed())
1716                         gdk_pointer_ungrab(GDK_CURRENT_TIME);
1717         }
1718
1719         /* Open Folder */
1720         buf = g_strdup_printf(_("Opening Folder %s..."), item->path ?
1721                                         item->path : "(null)");
1722         debug_print("%s\n", buf);
1723         STATUSBAR_PUSH(folderview->mainwin, buf);
1724         g_free(buf);
1725
1726         main_window_cursor_wait(folderview->mainwin);
1727
1728         if (folder_item_open(item) != 0) {
1729                 main_window_cursor_normal(folderview->mainwin);
1730                 STATUSBAR_POP(folderview->mainwin);
1731
1732                 alertpanel_error(_("Folder could not be opened."));
1733
1734                 folderview->open_folder = FALSE;
1735                 can_select = TRUE;
1736
1737                 return;
1738         }
1739
1740         main_window_cursor_normal(folderview->mainwin);
1741
1742         /* Show messages */
1743         summary_set_prefs_from_folderitem(folderview->summaryview, item);
1744         opened = summary_show(folderview->summaryview, item);
1745
1746         folder_clean_cache_memory();
1747
1748         if (!opened) {
1749                 gtkut_ctree_set_focus_row(ctree, folderview->opened);
1750                 gtk_ctree_select(ctree, folderview->opened);
1751         } else {
1752                 folderview->opened = row;
1753                 if (gtk_ctree_node_is_visible(ctree, row)
1754                     != GTK_VISIBILITY_FULL)
1755                         gtk_ctree_node_moveto(ctree, row, -1, 0.5, 0);
1756         }
1757
1758         STATUSBAR_POP(folderview->mainwin);
1759
1760         folderview->open_folder = FALSE;
1761         can_select = TRUE;
1762 }
1763
1764 static void folderview_tree_expanded(GtkCTree *ctree, GtkCTreeNode *node,
1765                                      FolderView *folderview)
1766 {
1767         FolderItem *item;
1768
1769         item = gtk_ctree_node_get_row_data(ctree, node);
1770         g_return_if_fail(item != NULL);
1771         item->collapsed = FALSE;
1772         folderview_update_node(folderview, node);
1773 }
1774
1775 static void folderview_tree_collapsed(GtkCTree *ctree, GtkCTreeNode *node,
1776                                       FolderView *folderview)
1777 {
1778         FolderItem *item;
1779
1780         item = gtk_ctree_node_get_row_data(ctree, node);
1781         g_return_if_fail(item != NULL);
1782         item->collapsed = TRUE;
1783         folderview_update_node(folderview, node);
1784 }
1785
1786 static void folderview_popup_close(GtkMenuShell *menu_shell,
1787                                    FolderView *folderview)
1788 {
1789         if (!folderview->opened) return;
1790
1791         gtkut_ctree_set_focus_row(GTK_CTREE(folderview->ctree),
1792                                   folderview->opened);
1793         gtk_ctree_select(GTK_CTREE(folderview->ctree), folderview->opened);
1794 }
1795
1796 static void folderview_col_resized(GtkCList *clist, gint column, gint width,
1797                                    FolderView *folderview)
1798 {
1799         switch (column) {
1800         case COL_FOLDER:
1801                 prefs_common.folder_col_folder = width;
1802                 break;
1803         case COL_NEW:
1804                 prefs_common.folder_col_new = width;
1805                 break;
1806         case COL_UNREAD:
1807                 prefs_common.folder_col_unread = width;
1808                 break;
1809         case COL_TOTAL:
1810                 prefs_common.folder_col_total = width;
1811                 break;
1812         default:
1813                 break;
1814         }
1815 }
1816
1817 void folderview_create_folder_node_recursive(FolderView *folderview, FolderItem *item)
1818 {
1819         GNode *srcnode;
1820
1821         folderview_create_folder_node(folderview, item);
1822
1823         srcnode = item->folder->node;
1824         srcnode = g_node_find(srcnode, G_PRE_ORDER, G_TRAVERSE_ALL, item);
1825         srcnode = srcnode->children;
1826         while (srcnode != NULL) {
1827                 if (srcnode && srcnode->data) {
1828                         FolderItem *next_item = (FolderItem*) srcnode->data;
1829                         folderview_create_folder_node_recursive(folderview, next_item);
1830                 }
1831                 srcnode = srcnode->next;
1832         }
1833 }
1834
1835 void folderview_create_folder_node(FolderView *folderview, FolderItem *item)
1836 {
1837         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
1838         gchar *text[N_FOLDER_COLS] = {NULL, "0", "0", "0"};
1839         GtkCTreeNode *node, *parent_node;
1840
1841         parent_node = gtk_ctree_find_by_row_data(ctree, NULL, folder_item_parent(item));
1842         if (parent_node == NULL)
1843                 return;
1844
1845         gtk_clist_freeze(GTK_CLIST(ctree));
1846
1847         text[COL_FOLDER] = item->name;
1848         node = gtk_ctree_insert_node(ctree, parent_node, NULL, text,
1849                                      FOLDER_SPACING,
1850                                      folderxpm, folderxpmmask,
1851                                      folderopenxpm, folderopenxpmmask,
1852                                      FALSE, FALSE);
1853         gtk_ctree_expand(ctree, parent_node);
1854         gtk_ctree_node_set_row_data(ctree, node, item);
1855         if (normal_style)
1856                 gtk_ctree_node_set_row_style(ctree, node, normal_style);
1857         folderview_sort_folders(folderview, folderview->selected, item->folder);
1858
1859         gtk_clist_thaw(GTK_CLIST(ctree));
1860 }
1861
1862 static void folderview_empty_trash_cb(FolderView *folderview, guint action,
1863                                       GtkWidget *widget)
1864 {
1865         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
1866         FolderItem *item;
1867         GSList *mlist = NULL;
1868         GSList *cur = NULL;
1869         if (!folderview->selected) return;
1870
1871         item = gtk_ctree_node_get_row_data(ctree, folderview->selected);
1872         g_return_if_fail(item != NULL);
1873         g_return_if_fail(item->folder != NULL);
1874         if (item != item->folder->trash) return;
1875
1876         if (prefs_common.ask_on_clean) {
1877                 if (alertpanel(_("Empty trash"),
1878                                _("Empty all messages in trash?"),
1879                                GTK_STOCK_YES, GTK_STOCK_NO, NULL) != G_ALERTDEFAULT)
1880                         return;
1881         }
1882
1883         mlist = folder_item_get_msg_list(item);
1884
1885         for (cur = mlist ; cur != NULL ; cur = cur->next) {
1886                 MsgInfo * msginfo = (MsgInfo *) cur->data;
1887                 if (MSG_IS_LOCKED(msginfo->flags))
1888                         continue;
1889                 /* is it partially received? (partial_recv isn't cached) */
1890                 if (msginfo->total_size != 0 &&
1891                     msginfo->size != (off_t)msginfo->total_size)
1892                         partial_mark_for_delete(msginfo);
1893         }
1894         procmsg_msg_list_free(mlist);
1895
1896         folder_item_remove_all_msg(item);
1897 }
1898
1899 static void folderview_search_cb(FolderView *folderview, guint action,
1900                                  GtkWidget *widget)
1901 {
1902         summary_search(folderview->summaryview);
1903 }
1904
1905 static void folderview_property_cb(FolderView *folderview, guint action,
1906                                    GtkWidget *widget)
1907 {
1908         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
1909         FolderItem *item;
1910
1911         if (!folderview->selected) return;
1912
1913         item = gtk_ctree_node_get_row_data(ctree, folderview->selected);
1914         g_return_if_fail(item != NULL);
1915         g_return_if_fail(item->folder != NULL);
1916
1917         if (folder_item_parent(item) == NULL)
1918                 return;
1919
1920         prefs_folder_item_open(item);
1921 }
1922
1923 static void folderview_recollapse_nodes(FolderView *folderview, GtkCTreeNode *node)
1924 {
1925         GSList *list = NULL;
1926         GSList *done = NULL;
1927         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
1928
1929         for (list = folderview->nodes_to_recollapse; list != NULL; list = g_slist_next(list)) {
1930                 if (!gtkut_ctree_node_is_parent(GTK_CTREE_NODE(list->data), node)
1931                 &&  list->data != node) {
1932                         gtk_ctree_collapse(ctree, GTK_CTREE_NODE(list->data));
1933                         done = g_slist_append(done, GTK_CTREE_NODE(list->data));
1934                 }
1935         }
1936         for (list = done; list != NULL; list = g_slist_next(list)) {
1937                 folderview->nodes_to_recollapse = g_slist_remove(folderview->nodes_to_recollapse,
1938                                                                  list->data);
1939         }
1940         g_slist_free(done);
1941 }
1942
1943 void folderview_move_folder(FolderView *folderview, FolderItem *from_folder,
1944                             FolderItem *to_folder)
1945 {
1946         FolderItem *from_parent = NULL;
1947         FolderItem *new_folder = NULL;
1948         GtkCTreeNode *src_node = NULL;
1949         gchar *buf;
1950         gint status;
1951
1952         g_return_if_fail(folderview != NULL);
1953         g_return_if_fail(from_folder != NULL);
1954         g_return_if_fail(to_folder != NULL);
1955
1956         src_node = gtk_ctree_find_by_row_data(GTK_CTREE(folderview->ctree), NULL, from_folder);
1957         from_parent = folder_item_parent(from_folder);
1958
1959         if (prefs_common.warn_dnd) {
1960                 buf = g_strdup_printf(_("Do you really want to make folder '%s' a "
1961                                         "sub-folder of '%s' ?"), from_folder->name,
1962                                         to_folder->name);
1963                 status = alertpanel_full(_("Move folder"), buf,
1964                                          GTK_STOCK_YES, GTK_STOCK_NO, NULL, TRUE,
1965                                          NULL, ALERT_QUESTION, G_ALERTALTERNATE);
1966                 g_free(buf);
1967
1968                 if (status != G_ALERTDEFAULT
1969                  && status != (G_ALERTDEFAULT | G_ALERTDISABLE))
1970                         return;
1971                 if (status & G_ALERTDISABLE)
1972                         prefs_common.warn_dnd = FALSE;
1973         }
1974
1975         buf = g_strdup_printf(_("Moving %s to %s..."), from_folder->name, to_folder->name);
1976         STATUSBAR_PUSH(folderview->mainwin, buf);
1977         g_free(buf);
1978         summary_clear_all(folderview->summaryview);
1979         folderview->opened = NULL;
1980         folderview->selected = NULL;
1981         gtk_widget_set_sensitive(GTK_WIDGET(folderview->ctree), FALSE);
1982         inc_lock();
1983         main_window_cursor_wait(folderview->mainwin);
1984         statusbar_verbosity_set(TRUE);
1985         folder_item_update_freeze();
1986         if ((status = folder_item_move_to(from_folder, to_folder, &new_folder)) == F_MOVE_OK) {
1987                 statusbar_verbosity_set(FALSE);
1988                 main_window_cursor_normal(folderview->mainwin);
1989                 STATUSBAR_POP(folderview->mainwin);
1990                 folder_item_update_thaw();
1991                 folder_item_update_recursive(new_folder, F_ITEM_UPDATE_MSGCNT);
1992
1993                 folderview_sort_folders(folderview,
1994                         gtk_ctree_find_by_row_data(GTK_CTREE(folderview->ctree),
1995                                 NULL, folder_item_parent(new_folder)), new_folder->folder);
1996                 folderview_select(folderview, new_folder);
1997         } else {
1998                 statusbar_verbosity_set(FALSE);
1999                 main_window_cursor_normal(folderview->mainwin);
2000                 STATUSBAR_POP(folderview->mainwin);
2001                 folder_item_update_thaw();
2002                 switch (status) {
2003                 case F_MOVE_FAILED_DEST_IS_PARENT:
2004                         alertpanel_error(_("Source and destination are the same."));
2005                         break;
2006                 case F_MOVE_FAILED_DEST_IS_CHILD:
2007                         alertpanel_error(_("Can't move a folder to one of its children."));
2008                         break;
2009                 case F_MOVE_FAILED_DEST_OUTSIDE_MAILBOX:
2010                         alertpanel_error(_("Folder moving cannot be done between different mailboxes."));
2011                         break;
2012                 default:
2013                         alertpanel_error(_("Move failed!"));
2014                         break;
2015                 }
2016         }
2017         inc_unlock();
2018         gtk_widget_set_sensitive(GTK_WIDGET(folderview->ctree), TRUE);
2019 }
2020
2021 static gint folderview_clist_compare(GtkCList *clist,
2022                                      gconstpointer ptr1, gconstpointer ptr2)
2023 {
2024         FolderItem *item1 = ((GtkCListRow *)ptr1)->data;
2025         FolderItem *item2 = ((GtkCListRow *)ptr2)->data;
2026
2027         if (!item1->name)
2028                 return (item2->name != NULL);
2029         if (!item2->name)
2030                 return -1;
2031
2032         return g_utf8_collate(item1->name, item2->name);
2033 }
2034
2035 static void folderview_processing_cb(FolderView *folderview, guint action,
2036                                      GtkWidget *widget)
2037 {
2038         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
2039         FolderItem *item;
2040
2041         if (!folderview->selected) return;
2042
2043         item = gtk_ctree_node_get_row_data(ctree, folderview->selected);
2044         g_return_if_fail(item != NULL);
2045         g_return_if_fail(item->folder != NULL);
2046
2047         prefs_filtering_open(&item->prefs->processing,
2048                              _("Processing configuration"), NULL, NULL);
2049 }
2050
2051 void folderview_set_target_folder_color(gint color_op)
2052 {
2053         gint firstone = 1;
2054         GList *list;
2055         FolderView *folderview;
2056
2057         for (list = folderview_list; list != NULL; list = list->next) {
2058                 folderview = (FolderView *)list->data;
2059                 gtkut_convert_int_to_gdk_color(color_op, &folderview->color_op);
2060                 if (firstone) {
2061                         bold_tgtfold_style->fg[GTK_STATE_NORMAL] =
2062                                 folderview->color_op;
2063                         firstone = 0;
2064                 }
2065         }
2066 }
2067
2068 void folderview_reflect_prefs_pixmap_theme(FolderView *folderview)
2069 {
2070 }
2071
2072 void folderview_reflect_prefs(void)
2073 {
2074         FolderView *folderview = mainwindow_get_mainwindow()->folderview;
2075         normal_style = normal_color_style = bold_style =
2076                 bold_color_style = bold_tgtfold_style = NULL;
2077
2078         folderview_init(folderview);
2079         folderview_set_all();
2080 }
2081
2082 static void drag_state_stop(FolderView *folderview)
2083 {
2084         if (folderview->drag_timer)
2085                 gtk_timeout_remove(folderview->drag_timer);
2086         folderview->drag_timer = 0;
2087         folderview->drag_node = NULL;
2088 }
2089
2090 static gint folderview_defer_expand(FolderView *folderview)
2091 {
2092         if (folderview->drag_node) {
2093                 folderview_recollapse_nodes(folderview, folderview->drag_node);
2094                 if (folderview->drag_item->collapsed) {
2095                         gtk_ctree_expand(GTK_CTREE(folderview->ctree), folderview->drag_node);
2096                         folderview->nodes_to_recollapse = g_slist_append
2097                                 (folderview->nodes_to_recollapse, folderview->drag_node);
2098                 }
2099         }
2100         folderview->drag_item  = NULL;
2101         folderview->drag_timer = 0;
2102         return FALSE;
2103 }
2104
2105 static void drag_state_start(FolderView *folderview, GtkCTreeNode *node, FolderItem *item)
2106 {
2107         /* the idea is that we call drag_state_start() whenever we want expansion to
2108          * start after 'prefs_common.hover_time' msecs. if we want to cancel expansion,
2109          * we need to call drag_state_stop() */
2110         drag_state_stop(folderview);
2111         /* request expansion */
2112         if (0 != (folderview->drag_timer = gtk_timeout_add
2113                         (prefs_common.hover_timeout,
2114                          (GtkFunction)folderview_defer_expand,
2115                          folderview))) {
2116                 folderview->drag_node = node;
2117                 folderview->drag_item = item;
2118         }
2119 }
2120
2121 static void folderview_start_drag(GtkWidget *widget, gint button, GdkEvent *event,
2122                                   FolderView       *folderview)
2123 {
2124         GdkDragContext *context;
2125
2126         g_return_if_fail(folderview != NULL);
2127         if (folderview->selected == NULL) return;
2128         if (folderview->nodes_to_recollapse)
2129                 g_slist_free(folderview->nodes_to_recollapse);
2130         folderview->nodes_to_recollapse = NULL;
2131         context = gtk_drag_begin(widget, folderview->target_list,
2132                                  GDK_ACTION_MOVE|GDK_ACTION_COPY|GDK_ACTION_DEFAULT, button, event);
2133         gtk_drag_set_icon_default(context);
2134 }
2135
2136 static void folderview_drag_data_get(GtkWidget        *widget,
2137                                      GdkDragContext   *drag_context,
2138                                      GtkSelectionData *selection_data,
2139                                      guint             info,
2140                                      guint             time,
2141                                      FolderView       *folderview)
2142 {
2143         FolderItem *item;
2144         GList *cur;
2145         gchar *source = NULL;
2146
2147         for (cur = GTK_CLIST(folderview->ctree)->selection;
2148              cur != NULL; cur = cur->next) {
2149                 item = gtk_ctree_node_get_row_data
2150                         (GTK_CTREE(folderview->ctree),
2151                          GTK_CTREE_NODE(cur->data));
2152                 if (item) {
2153                         source = g_strdup_printf ("FROM_OTHER_FOLDER%s", folder_item_get_identifier(item));
2154                         gtk_selection_data_set(selection_data,
2155                                                selection_data->target, 8,
2156                                                source, strlen(source));
2157                         break;
2158                 } else
2159                         return;
2160         }
2161 }
2162
2163 gboolean folderview_update_folder(gpointer source, gpointer userdata)
2164 {
2165         FolderUpdateData *hookdata;
2166         FolderView *folderview;
2167         GtkWidget *ctree;
2168
2169         hookdata = source;
2170         folderview = (FolderView *) userdata;
2171         g_return_val_if_fail(hookdata != NULL, FALSE);
2172         g_return_val_if_fail(folderview != NULL, FALSE);
2173
2174         ctree = folderview->ctree;
2175         g_return_val_if_fail(ctree != NULL, FALSE);
2176
2177         if (hookdata->update_flags & FOLDER_ADD_FOLDERITEM)
2178                 folderview_create_folder_node(folderview, hookdata->item);
2179         else if (hookdata->update_flags & FOLDER_REMOVE_FOLDERITEM) {
2180                 GtkCTreeNode *node;
2181
2182                 node = gtk_ctree_find_by_row_data(GTK_CTREE(ctree), NULL, hookdata->item);
2183                 if (node != NULL)
2184                         gtk_ctree_remove_node(GTK_CTREE(ctree), node);
2185         } else if (hookdata->update_flags & (FOLDER_TREE_CHANGED | FOLDER_ADD_FOLDER | FOLDER_REMOVE_FOLDER))
2186                 folderview_set(folderview);
2187
2188         return FALSE;
2189 }
2190
2191 static gboolean folderview_drag_motion_cb(GtkWidget      *widget,
2192                                           GdkDragContext *context,
2193                                           gint            x,
2194                                           gint            y,
2195                                           guint           time,
2196                                           FolderView     *folderview)
2197 {
2198         gint row, column;
2199         FolderItem *item = NULL, *src_item = NULL;
2200         GtkCTreeNode *node = NULL;
2201         gboolean acceptable = FALSE;
2202         GtkAdjustment *pos = gtk_scrolled_window_get_vadjustment(
2203                                 GTK_SCROLLED_WINDOW(folderview->scrolledwin));
2204         int height = (int)pos->page_size;
2205         int total_height = (int)pos->upper;
2206         int vpos = (int) pos->value;
2207
2208         if (gtk_clist_get_selection_info
2209                 (GTK_CLIST(widget), x - 24, y - 24, &row, &column)) {
2210                 GtkWidget *srcwidget;
2211
2212                 if (y > height - 24 && height + vpos < total_height)
2213                         gtk_adjustment_set_value(pos, (vpos+5 > height ? height : vpos+5));
2214
2215                 if (y < 48 && y > 0)
2216                         gtk_adjustment_set_value(pos, (vpos-5 < 0 ? 0 : vpos-5));
2217
2218                 node = gtk_ctree_node_nth(GTK_CTREE(widget), row);
2219                 item = gtk_ctree_node_get_row_data(GTK_CTREE(widget), node);
2220                 src_item = folderview->summaryview->folder_item;
2221
2222                 srcwidget = gtk_drag_get_source_widget(context);
2223                 if (srcwidget == folderview->summaryview->ctree) {
2224                         /* comes from summaryview */
2225                         /* we are copying messages, so only accept folder items that are not
2226                            the source item, are no root items and can copy messages */
2227                         if (item && item->folder && folder_item_parent(item) != NULL && src_item &&
2228                             src_item != item && FOLDER_CLASS(item->folder)->copy_msg != NULL)
2229                                 acceptable = TRUE;
2230                 } else if (srcwidget == folderview->ctree) {
2231                         /* comes from folderview */
2232                         /* we are moving folder items, only accept folders that are not
2233                            the source items and can copy messages and create folder items */
2234                         if (item && item->folder && src_item && src_item != item &&
2235                             FOLDER_CLASS(item->folder)->copy_msg != NULL &&
2236                             FOLDER_CLASS(item->folder)->create_folder != NULL)
2237                                 acceptable = TRUE;
2238                 }
2239         }
2240
2241         if (acceptable || (src_item && src_item == item))
2242                 drag_state_start(folderview, node, item);
2243
2244         if (acceptable) {
2245                 g_signal_handlers_block_by_func
2246                         (G_OBJECT(widget),
2247                          G_CALLBACK(folderview_selected), folderview);
2248                 gtk_ctree_select(GTK_CTREE(widget), node);
2249                 g_signal_handlers_unblock_by_func
2250                         (G_OBJECT(widget),
2251                          G_CALLBACK(folderview_selected), folderview);
2252                 gdk_drag_status(context,
2253                                         (context->actions == GDK_ACTION_COPY ?
2254                                         GDK_ACTION_COPY : GDK_ACTION_MOVE) , time);
2255         } else {
2256                 gtk_ctree_select(GTK_CTREE(widget), folderview->opened);
2257                 gdk_drag_status(context, 0, time);
2258         }
2259
2260         return acceptable;
2261 }
2262
2263 static void folderview_drag_leave_cb(GtkWidget      *widget,
2264                                      GdkDragContext *context,
2265                                      guint           time,
2266                                      FolderView     *folderview)
2267 {
2268         drag_state_stop(folderview);
2269         gtk_ctree_select(GTK_CTREE(widget), folderview->opened);
2270 }
2271
2272 static void folderview_drag_received_cb(GtkWidget        *widget,
2273                                         GdkDragContext   *drag_context,
2274                                         gint              x,
2275                                         gint              y,
2276                                         GtkSelectionData *data,
2277                                         guint             info,
2278                                         guint             time,
2279                                         FolderView       *folderview)
2280 {
2281         gint row, column;
2282         FolderItem *item, *src_item;
2283         GtkCTreeNode *node;
2284
2285         drag_state_stop(folderview);
2286         if ((void *)strstr(data->data, "FROM_OTHER_FOLDER") != (void *)data->data) {
2287                 /* comes from summaryview */
2288                 if (gtk_clist_get_selection_info
2289                         (GTK_CLIST(widget), x - 24, y - 24, &row, &column) == 0)
2290                         return;
2291
2292                 node = gtk_ctree_node_nth(GTK_CTREE(widget), row);
2293                 item = gtk_ctree_node_get_row_data(GTK_CTREE(widget), node);
2294                 src_item = folderview->summaryview->folder_item;
2295
2296                 /* re-check (due to acceptable possibly set for folder moves */
2297                 if (!(item && item->folder && item->path && !item->no_select &&
2298                       src_item && src_item != item && FOLDER_CLASS(item->folder)->copy_msg != NULL)) {
2299                         return;
2300                 }
2301                 if (item && src_item) {
2302                         switch (drag_context->action) {
2303                         case GDK_ACTION_COPY:
2304                                 summary_copy_selected_to(folderview->summaryview, item);
2305                                 gtk_drag_finish(drag_context, TRUE, FALSE, time);
2306                                 break;
2307                         case GDK_ACTION_MOVE:
2308                         case GDK_ACTION_DEFAULT:
2309                         default:
2310                                 if (FOLDER_CLASS(src_item->folder)->remove_msg == NULL)
2311                                         summary_copy_selected_to(folderview->summaryview, item);
2312                                 else
2313                                         summary_move_selected_to(folderview->summaryview, item);
2314                                 gtk_drag_finish(drag_context, TRUE, TRUE, time);
2315                         }
2316                 } else
2317                         gtk_drag_finish(drag_context, FALSE, FALSE, time);
2318         } else {
2319                 /* comes from folderview */
2320                 char *source;
2321
2322                 source = data->data + 17;
2323                 if (gtk_clist_get_selection_info
2324                     (GTK_CLIST(widget), x - 24, y - 24, &row, &column) == 0
2325                     || *source == 0) {
2326                         gtk_drag_finish(drag_context, FALSE, FALSE, time);
2327                         return;
2328                 }
2329                 node = gtk_ctree_node_nth(GTK_CTREE(widget), row);
2330                 item = gtk_ctree_node_get_row_data(GTK_CTREE(widget), node);
2331                 src_item = folder_find_item_from_identifier(source);
2332
2333                 if (!item || item->no_select || !src_item || src_item->stype != F_NORMAL) {
2334                         gtk_drag_finish(drag_context, FALSE, FALSE, time);
2335                         return;
2336                 }
2337
2338                 folderview_move_folder(folderview, src_item, item);
2339                 gtk_drag_finish(drag_context, TRUE, TRUE, time);
2340         }
2341         folderview->nodes_to_recollapse = NULL;
2342 }
2343
2344 static void folderview_drag_end_cb(GtkWidget        *widget,
2345                                    GdkDragContext   *drag_context,
2346                                    FolderView       *folderview)
2347 {
2348         drag_state_stop(folderview);
2349         g_slist_free(folderview->nodes_to_recollapse);
2350         folderview->nodes_to_recollapse = NULL;
2351 }
2352
2353 void folderview_register_popup(FolderViewPopup *fpopup)
2354 {
2355         GList *folderviews;
2356
2357         for (folderviews = folderview_list; folderviews != NULL; folderviews = g_list_next(folderviews)) {
2358                 FolderView *folderview = folderviews->data;
2359                 GtkItemFactory *factory;
2360
2361                 factory = create_ifactory(folderview, fpopup);
2362                 g_hash_table_insert(folderview->popups, fpopup->klass, factory);
2363         }
2364         g_hash_table_insert(folderview_popups, fpopup->klass, fpopup);
2365 }
2366
2367 void folderview_unregister_popup(FolderViewPopup *fpopup)
2368 {
2369         GList *folderviews;
2370
2371         for (folderviews = folderview_list; folderviews != NULL; folderviews = g_list_next(folderviews)) {
2372                 FolderView *folderview = folderviews->data;
2373
2374                 g_hash_table_remove(folderview->popups, fpopup->klass);
2375         }
2376         g_hash_table_remove(folderview_popups, fpopup->klass);
2377 }