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 = item->folder->node;
1027
1028         node = g_node_find(node, G_PRE_ORDER, G_TRAVERSE_ALL, item);
1029         node = node->children;
1030
1031         if (in_sub &&
1032             (item->unread_msgs > 0 ||
1033             (item->stype == F_QUEUE && item->total_msgs > 0))) {
1034                 return TRUE;
1035         }
1036
1037         while (node != NULL) {
1038                 if (node && node->data) {
1039                         FolderItem *next_item = (FolderItem*) node->data;
1040                         node = node->next;
1041                         if (folderview_have_unread_children_sub(folderview,
1042                                                                 next_item,
1043                                                                 TRUE))
1044                                 return TRUE;
1045                 }
1046         }
1047
1048         return FALSE;
1049 }
1050
1051 static gboolean folderview_have_unread_children(FolderView *folderview,
1052                                                 FolderItem *item)
1053 {
1054         return folderview_have_unread_children_sub(folderview, item, FALSE);
1055 }
1056
1057 static gboolean folderview_have_matching_children_sub(FolderView *folderview,
1058                                                       FolderItem *item,
1059                                                       gboolean in_sub)
1060 {
1061         GNode *node = item->folder->node;
1062
1063         node = g_node_find(node, G_PRE_ORDER, G_TRAVERSE_ALL, item);
1064         node = node->children;
1065
1066         if (in_sub && item->search_match){
1067                 return TRUE;
1068         }
1069
1070         while (node != NULL) {
1071                 if (node && node->data) {
1072                         FolderItem *next_item = (FolderItem*) node->data;
1073                         node = node->next;
1074                         if (folderview_have_matching_children_sub(folderview,
1075                                                                   next_item,
1076                                                                   TRUE))
1077                                 return TRUE;
1078                 }
1079         }
1080
1081         return FALSE;
1082 }
1083
1084 static gboolean folderview_have_matching_children(FolderView *folderview,
1085                                                   FolderItem *item)
1086 {
1087         return folderview_have_matching_children_sub(folderview, item, FALSE);
1088 }
1089
1090 static void folderview_update_node(FolderView *folderview, GtkCTreeNode *node)
1091 {
1092         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
1093         GtkStyle *style = NULL;
1094         GtkStyle *color_style = NULL;
1095         FolderItem *item;
1096         GdkPixmap *xpm, *openxpm;
1097         GdkBitmap *mask, *openmask;
1098         static GdkPixmap *searchicon;
1099         static GdkBitmap *searchmask;
1100         gboolean mark = FALSE;
1101         gchar *name;
1102         gchar *str;
1103         gboolean add_unread_mark;
1104         gboolean add_sub_match_mark;
1105         gboolean use_bold, use_color;
1106
1107         item = gtk_ctree_node_get_row_data(ctree, node);
1108         g_return_if_fail(item != NULL);
1109
1110         mark = (item->marked_msgs != 0);
1111
1112         switch (item->stype) {
1113         case F_INBOX:
1114                 if (item->hide_read_msgs) {
1115                         xpm = mark?m_inboxhrmxpm:inboxhrmxpm;
1116                         mask = mark?m_inboxhrmxpmmask:inboxhrmxpmmask;
1117                         openxpm = mark?m_inboxopenhrmxpm:inboxopenhrmxpm;
1118                         openmask = mark?m_inboxopenhrmxpmmask:inboxopenhrmxpmmask;
1119                 } else {
1120                         xpm = mark?m_inboxxpm:inboxxpm;
1121                         mask = mark?m_inboxxpmmask:inboxxpmmask;
1122                         openxpm = mark?m_inboxopenxpm:inboxopenxpm;
1123                         openmask = mark?m_inboxopenxpmmask:inboxopenxpmmask;
1124                 }
1125                 break;
1126         case F_OUTBOX:
1127                 if (item->hide_read_msgs) {
1128                         xpm = mark?m_outboxhrmxpm:outboxhrmxpm;
1129                         mask = mark?m_outboxhrmxpmmask:outboxhrmxpmmask;
1130                         openxpm = mark?m_outboxopenhrmxpm:outboxopenhrmxpm;
1131                         openmask = mark?m_outboxopenhrmxpmmask:outboxopenhrmxpmmask;
1132                 } else {
1133                         xpm = mark?m_outboxxpm:outboxxpm;
1134                         mask = mark?m_outboxxpmmask:outboxxpmmask;
1135                         openxpm = mark?m_outboxopenxpm:outboxopenxpm;
1136                         openmask = mark?m_outboxopenxpmmask:outboxopenxpmmask;
1137                 }
1138                 break;
1139         case F_QUEUE:
1140                 if (item->hide_read_msgs) {
1141                         xpm = mark?m_queuehrmxpm:queuehrmxpm;
1142                         mask = mark?m_queuehrmxpmmask:queuehrmxpmmask;
1143                         openxpm = mark?m_queueopenhrmxpm:queueopenhrmxpm;
1144                         openmask = mark?m_queueopenhrmxpmmask:queueopenhrmxpmmask;
1145                 } else {
1146                         xpm = mark?m_queuexpm:queuexpm;
1147                         mask = mark?m_queuexpmmask:queuexpmmask;
1148                         openxpm = mark?m_queueopenxpm:queueopenxpm;
1149                         openmask = mark?m_queueopenxpmmask:queueopenxpmmask;
1150                 }
1151                 break;
1152         case F_TRASH:
1153                 if (item->hide_read_msgs) {
1154                         xpm = mark?m_trashhrmxpm:trashhrmxpm;
1155                         mask = mark?m_trashhrmxpmmask:trashhrmxpmmask;
1156                         openxpm = mark?m_trashopenhrmxpm:trashopenhrmxpm;
1157                         openmask = mark?m_trashopenhrmxpmmask:trashopenhrmxpmmask;
1158                 } else {
1159                         xpm = mark?m_trashxpm:trashxpm;
1160                         mask = mark?m_trashxpmmask:trashxpmmask;
1161                         openxpm = mark?m_trashopenxpm:trashopenxpm;
1162                         openmask = mark?m_trashopenxpmmask:trashopenxpmmask;
1163                 }
1164                 break;
1165         case F_DRAFT:
1166                 xpm = mark?m_draftsxpm:draftsxpm;
1167                 mask = mark?m_draftsxpmmask:draftsxpmmask;
1168                 openxpm = mark?m_draftsopenxpm:draftsopenxpm;
1169                 openmask = mark?m_draftsopenxpmmask:draftsopenxpmmask;
1170                 break;
1171         default:
1172                 if (item->hide_read_msgs) {
1173                         xpm = mark?m_folderhrmxpm:folderhrmxpm;
1174                         mask = mark?m_folderhrmxpmmask:folderhrmxpmmask;
1175                         openxpm = mark?m_folderopenhrmxpm:folderopenhrmxpm;
1176                         openmask = mark?m_folderopenhrmxpmmask:folderopenhrmxpmmask;
1177                 } else {
1178                         xpm = mark?m_folderxpm:folderxpm;
1179                         mask = mark?m_folderxpmmask:folderxpmmask;
1180                         openxpm = mark?m_folderopenxpm:folderopenxpm;
1181                         openmask = mark?m_folderopenxpmmask:folderopenxpmmask;
1182                 }
1183         }
1184
1185         if (item->no_select) {
1186                 xpm = openxpm = noselectxpm;
1187                 mask = openmask = noselectxpmmask;
1188         }
1189
1190         name = folder_item_get_name(item);
1191
1192         if (!GTK_CTREE_ROW(node)->expanded) {
1193                 add_unread_mark = folderview_have_unread_children(
1194                                         folderview, item);
1195                 add_sub_match_mark = folderview_have_matching_children(
1196                                         folderview, item);
1197         } else {
1198                 add_unread_mark = FALSE;
1199                 add_sub_match_mark = FALSE;
1200         }
1201
1202         if (item->search_match) {
1203                 if (!searchicon) {
1204                         stock_pixmap_gdk(folderview->ctree, STOCK_PIXMAP_QUICKSEARCH,
1205                          &searchicon, &searchmask);
1206                 }
1207                 xpm = openxpm = searchicon;
1208                 mask = openmask = searchmask;
1209         }
1210
1211         if (item->stype == F_QUEUE && item->total_msgs > 0 &&
1212             prefs_common.display_folder_unread) {
1213                 str = g_strdup_printf("%s (%d%s)", name, item->total_msgs,
1214                                       add_unread_mark ? "+" : "");
1215                 gtk_ctree_set_node_info(ctree, node, str, FOLDER_SPACING,
1216                                         xpm, mask, openxpm, openmask,
1217                                         FALSE, GTK_CTREE_ROW(node)->expanded);
1218                 g_free(str);
1219         } else if (((item->unread_msgs > 0 || add_unread_mark) &&
1220                     prefs_common.display_folder_unread)
1221                    || add_sub_match_mark) {
1222
1223                 if (item->unread_msgs > 0)
1224                         str = g_strdup_printf("%s (%d%s%s)", name, item->unread_msgs,
1225                                               add_unread_mark || add_sub_match_mark ? "+" : "",
1226                                               item->unreadmarked_msgs > 0 ? "!":"");
1227                 else
1228                         str = g_strdup_printf("%s (+)", name);
1229                 gtk_ctree_set_node_info(ctree, node, str, FOLDER_SPACING,
1230                                         xpm, mask, openxpm, openmask,
1231                                         FALSE, GTK_CTREE_ROW(node)->expanded);
1232                 g_free(str);
1233         } else {
1234                 str = g_strdup_printf("%s%s", name,
1235                                       item->unreadmarked_msgs > 0 ? " (!)":"");
1236
1237                 gtk_ctree_set_node_info(ctree, node, str, FOLDER_SPACING,
1238                                         xpm, mask, openxpm, openmask,
1239                                         FALSE, GTK_CTREE_ROW(node)->expanded);
1240                 g_free(str);
1241         }
1242         g_free(name);
1243
1244         if (!folder_item_parent(item)) {
1245                 gtk_ctree_node_set_text(ctree, node, COL_NEW,    "-");
1246                 gtk_ctree_node_set_text(ctree, node, COL_UNREAD, "-");
1247                 gtk_ctree_node_set_text(ctree, node, COL_TOTAL,  "-");
1248         } else {
1249                 gtk_ctree_node_set_text(ctree, node, COL_NEW,    itos(item->new_msgs));
1250                 gtk_ctree_node_set_text(ctree, node, COL_UNREAD, itos(item->unread_msgs));
1251                 gtk_ctree_node_set_text(ctree, node, COL_TOTAL,  itos(item->total_msgs));
1252         }
1253
1254         if (item->stype == F_OUTBOX || item->stype == F_DRAFT ||
1255             item->stype == F_TRASH) {
1256                 use_bold = use_color = FALSE;
1257         } else if (item->stype == F_QUEUE) {
1258                 /* highlight queue folder if there are any messages */
1259                 use_bold = use_color = (item->total_msgs > 0);
1260         } else {
1261                 /* if unread messages exist, print with bold font */
1262                 use_bold = (item->unread_msgs > 0) || add_unread_mark;
1263                 /* if new messages exist, print with colored letter */
1264                 use_color =
1265                         (item->new_msgs > 0) ||
1266                         (add_unread_mark &&
1267                          folderview_have_new_children(folderview, item));
1268         }
1269
1270         gtk_ctree_node_set_foreground(ctree, node, NULL);
1271
1272         if (use_bold) {
1273                 if (item->prefs->color > 0 && !use_color) {
1274                         GdkColor gdk_color;
1275
1276                         gtkut_convert_int_to_gdk_color(item->prefs->color, &gdk_color);
1277                         color_style = gtk_style_copy(bold_style);
1278                         color_style->fg[GTK_STATE_NORMAL] = gdk_color;
1279                         style = color_style;
1280                 } else if (use_color)
1281                         style = bold_color_style;
1282                 else
1283                         style = bold_style;
1284                 if (item->op_count > 0) {
1285                         style = bold_tgtfold_style;
1286                 }
1287         } else if (use_color) {
1288                 style = normal_color_style;
1289                 gtk_ctree_node_set_foreground(ctree, node,
1290                                               &folderview->color_new);
1291         } else if (item->op_count > 0) {
1292                 style = bold_tgtfold_style;
1293         } else if (item->prefs->color > 0) {
1294                 GdkColor gdk_color;
1295                 gtkut_convert_int_to_gdk_color(item->prefs->color, &gdk_color);
1296                 color_style = gtk_style_copy(normal_style);
1297                 color_style->fg[GTK_STATE_NORMAL] = gdk_color;
1298                 style = color_style;
1299         } else {
1300                 style = normal_style;
1301         }
1302
1303         gtk_ctree_node_set_row_style(ctree, node, style);
1304
1305         if ((node = gtkut_ctree_find_collapsed_parent(ctree, node)) != NULL)
1306                 folderview_update_node(folderview, node);
1307 }
1308
1309 #if !CLAWS /* keep it here for syncs */
1310 void folderview_update_item(FolderItem *item, gboolean update_summary)
1311 {
1312         GList *list;
1313         FolderView *folderview;
1314         GtkCTree *ctree;
1315         GtkCTreeNode *node;
1316
1317         g_return_if_fail(item != NULL);
1318
1319         for (list = folderview_list; list != NULL; list = list->next) {
1320                 folderview = (FolderView *)list->data;
1321                 ctree = GTK_CTREE(folderview->ctree);
1322
1323                 node = gtk_ctree_find_by_row_data(ctree, NULL, item);
1324                 if (node) {
1325                         folderview_update_node(folderview, node);
1326                         if (update_summary && folderview->opened == node)
1327                                 summary_show(folderview->summaryview,
1328                                              item, FALSE);
1329                 }
1330         }
1331 }
1332 #endif
1333
1334 void folderview_update_search_icon(FolderItem *item, gboolean matches)
1335 {
1336         GList *list;
1337         FolderView *folderview;
1338         GtkCTree *ctree;
1339         GtkCTreeNode *node;
1340
1341         g_return_if_fail(item != NULL);
1342
1343         for (list = folderview_list; list != NULL; list = list->next) {
1344                 folderview = (FolderView *)list->data;
1345                 ctree = GTK_CTREE(folderview->ctree);
1346
1347                 node = gtk_ctree_find_by_row_data(ctree, NULL, item);
1348                 if (node) {
1349                         item->search_match = matches;
1350                         folderview_update_node(folderview, node);
1351                 }
1352         }
1353 }
1354
1355 gboolean folderview_update_item_claws(gpointer source, gpointer data)
1356 {
1357         FolderItemUpdateData *update_info = (FolderItemUpdateData *)source;
1358         FolderView *folderview = (FolderView *)data;
1359         GtkCTree *ctree;
1360         GtkCTreeNode *node;
1361         g_return_val_if_fail(update_info != NULL, TRUE);
1362         g_return_val_if_fail(update_info->item != NULL, TRUE);
1363         g_return_val_if_fail(folderview != NULL, FALSE);
1364
1365         ctree = GTK_CTREE(folderview->ctree);
1366
1367         node = gtk_ctree_find_by_row_data(ctree, NULL, update_info->item);
1368         if (node) {
1369                 if (update_info->update_flags & (F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_NAME))
1370                         folderview_update_node(folderview, node);
1371                 if ((update_info->update_flags & F_ITEM_UPDATE_CONTENT) && (folderview->opened == node))
1372                         summary_show(folderview->summaryview, update_info->item);
1373         }
1374
1375         return FALSE;
1376 }
1377
1378 static void folderview_update_item_foreach_func(gpointer key, gpointer val,
1379                                                 gpointer data)
1380 {
1381         /* CLAWS: share this joy with other hook functions ... */
1382         folder_item_update((FolderItem *)key,
1383                            (FolderItemUpdateFlags)GPOINTER_TO_INT(data));
1384 }
1385
1386 void folderview_update_item_foreach(GHashTable *table, gboolean update_summary)
1387 {
1388         GList *list;
1389         FolderItemUpdateFlags flags;
1390
1391         flags = update_summary ?  F_ITEM_UPDATE_CONTENT | F_ITEM_UPDATE_MSGCNT
1392                 : 0;
1393         for (list = folderview_list; list != NULL; list = list->next)
1394                 g_hash_table_foreach(table, folderview_update_item_foreach_func,
1395                                      GINT_TO_POINTER(flags));
1396 }
1397
1398 static gboolean folderview_gnode_func(GtkCTree *ctree, guint depth,
1399                                       GNode *gnode, GtkCTreeNode *cnode,
1400                                       gpointer data)
1401 {
1402         FolderView *folderview = (FolderView *)data;
1403         FolderItem *item = FOLDER_ITEM(gnode->data);
1404
1405         g_return_val_if_fail(item != NULL, FALSE);
1406
1407         gtk_ctree_node_set_row_data(ctree, cnode, item);
1408         folderview_update_node(folderview, cnode);
1409
1410         return TRUE;
1411 }
1412
1413 static void folderview_expand_func(GtkCTree *ctree, GtkCTreeNode *node,
1414                                    gpointer data)
1415 {
1416         FolderView *folderview = (FolderView *)data;
1417         FolderItem *item;
1418
1419         if (GTK_CTREE_ROW(node)->children) {
1420                 item = gtk_ctree_node_get_row_data(ctree, node);
1421                 g_return_if_fail(item != NULL);
1422
1423                 if (!item->collapsed)
1424                         gtk_ctree_expand(ctree, node);
1425                 else
1426                         folderview_update_node(folderview, node);
1427         }
1428 }
1429
1430 static void set_special_folder(GtkCTree *ctree, FolderItem *item,
1431                                GtkCTreeNode *root, GtkCTreeNode **prev)
1432 {
1433         if (item) {
1434                 GtkCTreeNode *node, *parent, *sibling;
1435
1436                 node = gtk_ctree_find_by_row_data(ctree, root, item);
1437                 if (!node)
1438                         g_warning("%s not found.\n", item->path);
1439                 else {
1440                         parent = GTK_CTREE_ROW(node)->parent;
1441                         if (*prev && parent == GTK_CTREE_ROW(*prev)->parent)
1442                                 sibling = GTK_CTREE_ROW(*prev)->sibling;
1443                         else
1444                                 sibling = GTK_CTREE_ROW(parent)->children;
1445                         while (sibling) {
1446                                 FolderItem *tmp;
1447
1448                                 tmp = gtk_ctree_node_get_row_data
1449                                         (ctree, sibling);
1450                                 if (tmp->stype != F_NORMAL)
1451                                         sibling = GTK_CTREE_ROW(sibling)->sibling;
1452                                 else
1453                                         break;
1454                         }
1455                         if (node != sibling)
1456                                 gtk_ctree_move(ctree, node, parent, sibling);
1457                 }
1458
1459                 *prev = node;
1460         }
1461 }
1462
1463 static void folderview_sort_folders(FolderView *folderview, GtkCTreeNode *root,
1464                                     Folder *folder)
1465 {
1466         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
1467         GtkCTreeNode *prev = NULL;
1468
1469         gtk_sctree_sort_recursive(ctree, root);
1470
1471         if (root && GTK_CTREE_ROW(root)->parent) return;
1472
1473         set_special_folder(ctree, folder->inbox, root, &prev);
1474         set_special_folder(ctree, folder->outbox, root, &prev);
1475         set_special_folder(ctree, folder->draft, root, &prev);
1476         set_special_folder(ctree, folder->queue, root, &prev);
1477         set_special_folder(ctree, folder->trash, root, &prev);
1478 }
1479
1480 static void folderview_append_folder(FolderView *folderview, Folder *folder)
1481 {
1482         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
1483         GtkCTreeNode *root;
1484
1485         g_return_if_fail(folder != NULL);
1486
1487         root = gtk_ctree_insert_gnode(ctree, NULL, NULL, folder->node,
1488                                       folderview_gnode_func, folderview);
1489         gtk_ctree_pre_recursive(ctree, root, folderview_expand_func,
1490                                 folderview);
1491         folderview_sort_folders(folderview, root, folder);
1492 }
1493
1494 /* callback functions */
1495
1496 static gboolean folderview_button_pressed(GtkWidget *ctree, GdkEventButton *event,
1497                                           FolderView *folderview)
1498 {
1499         GtkCList *clist = GTK_CLIST(ctree);
1500         gint prev_row = -1, row = -1, column = -1;
1501         FolderItem *item;
1502         Folder *folder;
1503         FolderViewPopup *fpopup;
1504         GtkItemFactory *fpopup_factory;
1505         GtkWidget *popup;
1506
1507         if (!event) return FALSE;
1508
1509         if (event->button == 1) {
1510                 folderview->open_folder = TRUE;
1511
1512                 if (event->type == GDK_2BUTTON_PRESS) {
1513                         if (clist->selection) {
1514                                 GtkCTreeNode *node;
1515
1516                                 node = GTK_CTREE_NODE(clist->selection->data);
1517                                 if (node)
1518                                         gtk_ctree_toggle_expansion(
1519                                                 GTK_CTREE(ctree),
1520                                                 node);
1521                         }
1522                 }
1523                 return FALSE;
1524         }
1525
1526         if (event->button == 2 || event->button == 3) {
1527                 /* right clicked */
1528                 if (clist->selection) {
1529                         GtkCTreeNode *node;
1530
1531                         node = GTK_CTREE_NODE(clist->selection->data);
1532                         if (node)
1533                                 prev_row = gtkut_ctree_get_nth_from_node
1534                                         (GTK_CTREE(ctree), node);
1535                 }
1536
1537                 if (!gtk_clist_get_selection_info(clist, event->x, event->y,
1538                                                   &row, &column))
1539                         return FALSE;
1540                 if (prev_row != row) {
1541                         gtk_clist_unselect_all(clist);
1542                         if (event->button == 2)
1543                                 folderview_select_node
1544                                         (folderview,
1545                                          gtk_ctree_node_nth(GTK_CTREE(ctree),
1546                                                             row));
1547                         else
1548                                 gtk_clist_select_row(clist, row, column);
1549                 }
1550         }
1551
1552         if (event->button != 3) return FALSE;
1553
1554         item = gtk_clist_get_row_data(clist, row);
1555         g_return_val_if_fail(item != NULL, FALSE);
1556         g_return_val_if_fail(item->folder != NULL, FALSE);
1557         folder = item->folder;
1558
1559         fpopup = g_hash_table_lookup(folderview_popups, folder->klass->idstr);
1560         if (fpopup != NULL)
1561                 fpopup_factory = g_hash_table_lookup(folderview->popups, folder->klass->idstr);
1562         else {
1563                 fpopup = g_hash_table_lookup(folderview_popups, "common");
1564                 fpopup_factory = g_hash_table_lookup(folderview->popups, "common");
1565         }
1566
1567         if (fpopup->set_sensitivity != NULL)
1568                 fpopup->set_sensitivity(fpopup_factory, item);
1569
1570         if (item == folder->trash &&
1571             gtk_item_factory_get_item(fpopup_factory, "/Empty trash...") == NULL) {
1572                 gtk_item_factory_create_item(fpopup_factory, &folder_view_trash_popup_entries[0], folderview, 1);
1573                 gtk_item_factory_create_item(fpopup_factory, &folder_view_trash_popup_entries[1], folderview, 1);
1574         } else if (item != folder->trash) {
1575                 gtk_item_factory_delete_entry(fpopup_factory, &folder_view_trash_popup_entries[0]);
1576                 gtk_item_factory_delete_entry(fpopup_factory, &folder_view_trash_popup_entries[1]);
1577         }
1578
1579 #define SET_SENS(name, sens) \
1580         menu_set_sensitive(fpopup_factory, name, sens)
1581
1582         SET_SENS("/Mark all read", item->unread_msgs >= 1);
1583         SET_SENS("/Search folder...", item->total_msgs >= 1 &&
1584                  folderview->selected == folderview->opened);
1585         SET_SENS("/Properties...", item->node->parent != NULL);
1586         SET_SENS("/Processing...", item->node->parent != NULL);
1587         if (item == folder->trash)
1588                 SET_SENS("/Empty trash...", folder_item_get_msg_list(item) != NULL);
1589 #undef SET_SENS
1590
1591         popup = gtk_item_factory_get_widget(fpopup_factory, fpopup->path);
1592         gtk_menu_popup(GTK_MENU(popup), NULL, NULL, NULL, NULL,
1593                        event->button, event->time);
1594
1595         return FALSE;
1596 }
1597
1598 static gboolean folderview_button_released(GtkWidget *ctree, GdkEventButton *event,
1599                                            FolderView *folderview)
1600 {
1601         if (!event) return FALSE;
1602
1603         if (event->button == 1 && folderview->open_folder == FALSE &&
1604             folderview->opened != NULL) {
1605                 gtkut_ctree_set_focus_row(GTK_CTREE(ctree),
1606                                           folderview->opened);
1607                 gtk_ctree_select(GTK_CTREE(ctree), folderview->opened);
1608         }
1609
1610         return FALSE;
1611 }
1612
1613 static gboolean folderview_key_pressed(GtkWidget *widget, GdkEventKey *event,
1614                                        FolderView *folderview)
1615 {
1616         if (!event) return FALSE;
1617
1618         if (quicksearch_has_focus(folderview->summaryview->quicksearch))
1619                 return FALSE;
1620
1621         switch (event->keyval) {
1622         case GDK_Return:
1623                 if (folderview->selected) {
1624                         folderview_select_node(folderview,
1625                                                folderview->selected);
1626                 }
1627                 break;
1628         case GDK_space:
1629                 if (folderview->selected) {
1630                         if (folderview->opened == folderview->selected &&
1631                             (!folderview->summaryview->folder_item ||
1632                              folderview->summaryview->folder_item->total_msgs == 0))
1633                                 folderview_select_next_unread(folderview);
1634                         else
1635                                 folderview_select_node(folderview,
1636                                                        folderview->selected);
1637                 }
1638                 break;
1639         default:
1640                 break;
1641         }
1642
1643         return FALSE;
1644 }
1645
1646 static void folderview_selected(GtkCTree *ctree, GtkCTreeNode *row,
1647                                 gint column, FolderView *folderview)
1648 {
1649         static gboolean can_select = TRUE;      /* exclusive lock */
1650         gboolean opened;
1651         FolderItem *item;
1652         gchar *buf;
1653
1654         folderview->selected = row;
1655
1656         if (folderview->opened == row) {
1657                 folderview->open_folder = FALSE;
1658                 return;
1659         }
1660
1661         if (!can_select || summary_is_locked(folderview->summaryview)) {
1662                 gtkut_ctree_set_focus_row(ctree, folderview->opened);
1663                 gtk_ctree_select(ctree, folderview->opened);
1664                 return;
1665         }
1666
1667         if (!folderview->open_folder) return;
1668
1669         item = gtk_ctree_node_get_row_data(ctree, row);
1670         if (!item || item->no_select) return;
1671
1672         can_select = FALSE;
1673
1674         /* Save cache for old folder */
1675         /* We don't want to lose all caches if sylpheed crashed */
1676         if (folderview->opened) {
1677                 FolderItem *olditem;
1678
1679                 olditem = gtk_ctree_node_get_row_data(ctree, folderview->opened);
1680                 if (olditem) {
1681                         /* will be null if we just moved the previously opened folder */
1682                         summary_save_prefs_to_folderitem(folderview->summaryview, olditem);
1683                         folder_item_close(olditem);
1684                 }
1685         }
1686
1687         /* CLAWS: set compose button type: news folder items
1688          * always have a news folder as parent */
1689         if (item->folder)
1690                 toolbar_set_compose_button
1691                         (folderview->mainwin->toolbar,
1692                          FOLDER_TYPE(item->folder) == F_NEWS ?
1693                          COMPOSEBUTTON_NEWS : COMPOSEBUTTON_MAIL);
1694
1695         if (item->path)
1696                 debug_print("Folder %s is selected\n", item->path);
1697
1698         if (!GTK_CTREE_ROW(row)->children)
1699                 gtk_ctree_expand(ctree, row);
1700         if (folderview->opened &&
1701             !GTK_CTREE_ROW(folderview->opened)->children)
1702                 gtk_ctree_collapse(ctree, folderview->opened);
1703
1704         /* ungrab the mouse event */
1705         if (GTK_WIDGET_HAS_GRAB(ctree)) {
1706                 gtk_grab_remove(GTK_WIDGET(ctree));
1707                 if (gdk_pointer_is_grabbed())
1708                         gdk_pointer_ungrab(GDK_CURRENT_TIME);
1709         }
1710
1711         /* Open Folder */
1712         buf = g_strdup_printf(_("Opening Folder %s..."), item->path ?
1713                                         item->path : "(null)");
1714         debug_print("%s\n", buf);
1715         STATUSBAR_PUSH(folderview->mainwin, buf);
1716         g_free(buf);
1717
1718         main_window_cursor_wait(folderview->mainwin);
1719
1720         if (folder_item_open(item) != 0) {
1721                 main_window_cursor_normal(folderview->mainwin);
1722                 STATUSBAR_POP(folderview->mainwin);
1723
1724                 alertpanel_error(_("Folder could not be opened."));
1725
1726                 folderview->open_folder = FALSE;
1727                 can_select = TRUE;
1728
1729                 return;
1730         }
1731
1732         main_window_cursor_normal(folderview->mainwin);
1733
1734         /* Show messages */
1735         summary_set_prefs_from_folderitem(folderview->summaryview, item);
1736         opened = summary_show(folderview->summaryview, item);
1737
1738         folder_clean_cache_memory();
1739
1740         if (!opened) {
1741                 gtkut_ctree_set_focus_row(ctree, folderview->opened);
1742                 gtk_ctree_select(ctree, folderview->opened);
1743         } else {
1744                 folderview->opened = row;
1745                 if (gtk_ctree_node_is_visible(ctree, row)
1746                     != GTK_VISIBILITY_FULL)
1747                         gtk_ctree_node_moveto(ctree, row, -1, 0.5, 0);
1748         }
1749
1750         STATUSBAR_POP(folderview->mainwin);
1751
1752         folderview->open_folder = FALSE;
1753         can_select = TRUE;
1754 }
1755
1756 static void folderview_tree_expanded(GtkCTree *ctree, GtkCTreeNode *node,
1757                                      FolderView *folderview)
1758 {
1759         FolderItem *item;
1760
1761         item = gtk_ctree_node_get_row_data(ctree, node);
1762         g_return_if_fail(item != NULL);
1763         item->collapsed = FALSE;
1764         folderview_update_node(folderview, node);
1765 }
1766
1767 static void folderview_tree_collapsed(GtkCTree *ctree, GtkCTreeNode *node,
1768                                       FolderView *folderview)
1769 {
1770         FolderItem *item;
1771
1772         item = gtk_ctree_node_get_row_data(ctree, node);
1773         g_return_if_fail(item != NULL);
1774         item->collapsed = TRUE;
1775         folderview_update_node(folderview, node);
1776 }
1777
1778 static void folderview_popup_close(GtkMenuShell *menu_shell,
1779                                    FolderView *folderview)
1780 {
1781         if (!folderview->opened) return;
1782
1783         gtkut_ctree_set_focus_row(GTK_CTREE(folderview->ctree),
1784                                   folderview->opened);
1785         gtk_ctree_select(GTK_CTREE(folderview->ctree), folderview->opened);
1786 }
1787
1788 static void folderview_col_resized(GtkCList *clist, gint column, gint width,
1789                                    FolderView *folderview)
1790 {
1791         switch (column) {
1792         case COL_FOLDER:
1793                 prefs_common.folder_col_folder = width;
1794                 break;
1795         case COL_NEW:
1796                 prefs_common.folder_col_new = width;
1797                 break;
1798         case COL_UNREAD:
1799                 prefs_common.folder_col_unread = width;
1800                 break;
1801         case COL_TOTAL:
1802                 prefs_common.folder_col_total = width;
1803                 break;
1804         default:
1805                 break;
1806         }
1807 }
1808
1809 void folderview_create_folder_node_recursive(FolderView *folderview, FolderItem *item)
1810 {
1811         GNode *srcnode;
1812
1813         folderview_create_folder_node(folderview, item);
1814
1815         srcnode = item->folder->node;
1816         srcnode = g_node_find(srcnode, G_PRE_ORDER, G_TRAVERSE_ALL, item);
1817         srcnode = srcnode->children;
1818         while (srcnode != NULL) {
1819                 if (srcnode && srcnode->data) {
1820                         FolderItem *next_item = (FolderItem*) srcnode->data;
1821                         folderview_create_folder_node_recursive(folderview, next_item);
1822                 }
1823                 srcnode = srcnode->next;
1824         }
1825 }
1826
1827 void folderview_create_folder_node(FolderView *folderview, FolderItem *item)
1828 {
1829         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
1830         gchar *text[N_FOLDER_COLS] = {NULL, "0", "0", "0"};
1831         GtkCTreeNode *node, *parent_node;
1832
1833         parent_node = gtk_ctree_find_by_row_data(ctree, NULL, folder_item_parent(item));
1834         if (parent_node == NULL)
1835                 return;
1836
1837         gtk_clist_freeze(GTK_CLIST(ctree));
1838
1839         text[COL_FOLDER] = item->name;
1840         node = gtk_ctree_insert_node(ctree, parent_node, NULL, text,
1841                                      FOLDER_SPACING,
1842                                      folderxpm, folderxpmmask,
1843                                      folderopenxpm, folderopenxpmmask,
1844                                      FALSE, FALSE);
1845         gtk_ctree_expand(ctree, parent_node);
1846         gtk_ctree_node_set_row_data(ctree, node, item);
1847         if (normal_style)
1848                 gtk_ctree_node_set_row_style(ctree, node, normal_style);
1849         folderview_sort_folders(folderview, folderview->selected, item->folder);
1850
1851         gtk_clist_thaw(GTK_CLIST(ctree));
1852 }
1853
1854 static void folderview_empty_trash_cb(FolderView *folderview, guint action,
1855                                       GtkWidget *widget)
1856 {
1857         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
1858         FolderItem *item;
1859         GSList *mlist = NULL;
1860         GSList *cur = NULL;
1861         if (!folderview->selected) return;
1862
1863         item = gtk_ctree_node_get_row_data(ctree, folderview->selected);
1864         g_return_if_fail(item != NULL);
1865         g_return_if_fail(item->folder != NULL);
1866         if (item != item->folder->trash) return;
1867
1868         if (prefs_common.ask_on_clean) {
1869                 if (alertpanel(_("Empty trash"),
1870                                _("Empty all messages in trash?"),
1871                                GTK_STOCK_YES, GTK_STOCK_NO, NULL) != G_ALERTDEFAULT)
1872                         return;
1873         }
1874
1875         mlist = folder_item_get_msg_list(item);
1876
1877         for (cur = mlist ; cur != NULL ; cur = cur->next) {
1878                 MsgInfo * msginfo = (MsgInfo *) cur->data;
1879                 if (MSG_IS_LOCKED(msginfo->flags))
1880                         continue;
1881                 /* is it partially received? (partial_recv isn't cached) */
1882                 if (msginfo->total_size != 0 &&
1883                     msginfo->size != (off_t)msginfo->total_size)
1884                         partial_mark_for_delete(msginfo);
1885         }
1886         procmsg_msg_list_free(mlist);
1887
1888         folder_item_remove_all_msg(item);
1889 }
1890
1891 static void folderview_search_cb(FolderView *folderview, guint action,
1892                                  GtkWidget *widget)
1893 {
1894         summary_search(folderview->summaryview);
1895 }
1896
1897 static void folderview_property_cb(FolderView *folderview, guint action,
1898                                    GtkWidget *widget)
1899 {
1900         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
1901         FolderItem *item;
1902
1903         if (!folderview->selected) return;
1904
1905         item = gtk_ctree_node_get_row_data(ctree, folderview->selected);
1906         g_return_if_fail(item != NULL);
1907         g_return_if_fail(item->folder != NULL);
1908
1909         if (folder_item_parent(item) == NULL)
1910                 return;
1911
1912         prefs_folder_item_open(item);
1913 }
1914
1915 static void folderview_recollapse_nodes(FolderView *folderview, GtkCTreeNode *node)
1916 {
1917         GSList *list = NULL;
1918         GSList *done = NULL;
1919         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
1920
1921         for (list = folderview->nodes_to_recollapse; list != NULL; list = g_slist_next(list)) {
1922                 if (!gtkut_ctree_node_is_parent(GTK_CTREE_NODE(list->data), node)
1923                 &&  list->data != node) {
1924                         gtk_ctree_collapse(ctree, GTK_CTREE_NODE(list->data));
1925                         done = g_slist_append(done, GTK_CTREE_NODE(list->data));
1926                 }
1927         }
1928         for (list = done; list != NULL; list = g_slist_next(list)) {
1929                 folderview->nodes_to_recollapse = g_slist_remove(folderview->nodes_to_recollapse,
1930                                                                  list->data);
1931         }
1932         g_slist_free(done);
1933 }
1934
1935 void folderview_move_folder(FolderView *folderview, FolderItem *from_folder,
1936                             FolderItem *to_folder)
1937 {
1938         FolderItem *from_parent = NULL;
1939         FolderItem *new_folder = NULL;
1940         GtkCTreeNode *src_node = NULL;
1941         gchar *buf;
1942         gint status;
1943
1944         g_return_if_fail(folderview != NULL);
1945         g_return_if_fail(from_folder != NULL);
1946         g_return_if_fail(to_folder != NULL);
1947
1948         src_node = gtk_ctree_find_by_row_data(GTK_CTREE(folderview->ctree), NULL, from_folder);
1949         from_parent = folder_item_parent(from_folder);
1950
1951         if (prefs_common.warn_dnd) {
1952                 buf = g_strdup_printf(_("Do you really want to make folder '%s' a "
1953                                         "sub-folder of '%s' ?"), from_folder->name,
1954                                         to_folder->name);
1955                 status = alertpanel_full(_("Move folder"), buf,
1956                                          GTK_STOCK_YES, GTK_STOCK_NO, NULL, TRUE,
1957                                          NULL, ALERT_QUESTION, G_ALERTALTERNATE);
1958                 g_free(buf);
1959
1960                 if (status != G_ALERTDEFAULT
1961                  && status != (G_ALERTDEFAULT | G_ALERTDISABLE))
1962                         return;
1963                 if (status & G_ALERTDISABLE)
1964                         prefs_common.warn_dnd = FALSE;
1965         }
1966
1967         buf = g_strdup_printf(_("Moving %s to %s..."), from_folder->name, to_folder->name);
1968         STATUSBAR_PUSH(folderview->mainwin, buf);
1969         g_free(buf);
1970         summary_clear_all(folderview->summaryview);
1971         folderview->opened = NULL;
1972         folderview->selected = NULL;
1973         gtk_widget_set_sensitive(GTK_WIDGET(folderview->ctree), FALSE);
1974         inc_lock();
1975         main_window_cursor_wait(folderview->mainwin);
1976         statusbar_verbosity_set(TRUE);
1977         folder_item_update_freeze();
1978         if ((status = folder_item_move_to(from_folder, to_folder, &new_folder)) == F_MOVE_OK) {
1979                 statusbar_verbosity_set(FALSE);
1980                 main_window_cursor_normal(folderview->mainwin);
1981                 STATUSBAR_POP(folderview->mainwin);
1982                 folder_item_update_thaw();
1983                 folder_item_update_recursive(new_folder, F_ITEM_UPDATE_MSGCNT);
1984
1985                 folderview_sort_folders(folderview,
1986                         gtk_ctree_find_by_row_data(GTK_CTREE(folderview->ctree),
1987                                 NULL, folder_item_parent(new_folder)), new_folder->folder);
1988                 folderview_select(folderview, new_folder);
1989         } else {
1990                 statusbar_verbosity_set(FALSE);
1991                 main_window_cursor_normal(folderview->mainwin);
1992                 STATUSBAR_POP(folderview->mainwin);
1993                 folder_item_update_thaw();
1994                 switch (status) {
1995                 case F_MOVE_FAILED_DEST_IS_PARENT:
1996                         alertpanel_error(_("Source and destination are the same."));
1997                         break;
1998                 case F_MOVE_FAILED_DEST_IS_CHILD:
1999                         alertpanel_error(_("Can't move a folder to one of its children."));
2000                         break;
2001                 case F_MOVE_FAILED_DEST_OUTSIDE_MAILBOX:
2002                         alertpanel_error(_("Folder moving cannot be done between different mailboxes."));
2003                         break;
2004                 default:
2005                         alertpanel_error(_("Move failed!"));
2006                         break;
2007                 }
2008         }
2009         inc_unlock();
2010         gtk_widget_set_sensitive(GTK_WIDGET(folderview->ctree), TRUE);
2011 }
2012
2013 static gint folderview_clist_compare(GtkCList *clist,
2014                                      gconstpointer ptr1, gconstpointer ptr2)
2015 {
2016         FolderItem *item1 = ((GtkCListRow *)ptr1)->data;
2017         FolderItem *item2 = ((GtkCListRow *)ptr2)->data;
2018
2019         if (!item1->name)
2020                 return (item2->name != NULL);
2021         if (!item2->name)
2022                 return -1;
2023
2024         return g_utf8_collate(item1->name, item2->name);
2025 }
2026
2027 static void folderview_processing_cb(FolderView *folderview, guint action,
2028                                      GtkWidget *widget)
2029 {
2030         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
2031         FolderItem *item;
2032
2033         if (!folderview->selected) return;
2034
2035         item = gtk_ctree_node_get_row_data(ctree, folderview->selected);
2036         g_return_if_fail(item != NULL);
2037         g_return_if_fail(item->folder != NULL);
2038
2039         prefs_filtering_open(&item->prefs->processing,
2040                              _("Processing configuration"), NULL, NULL);
2041 }
2042
2043 void folderview_set_target_folder_color(gint color_op)
2044 {
2045         gint firstone = 1;
2046         GList *list;
2047         FolderView *folderview;
2048
2049         for (list = folderview_list; list != NULL; list = list->next) {
2050                 folderview = (FolderView *)list->data;
2051                 gtkut_convert_int_to_gdk_color(color_op, &folderview->color_op);
2052                 if (firstone) {
2053                         bold_tgtfold_style->fg[GTK_STATE_NORMAL] =
2054                                 folderview->color_op;
2055                         firstone = 0;
2056                 }
2057         }
2058 }
2059
2060 void folderview_reflect_prefs_pixmap_theme(FolderView *folderview)
2061 {
2062 }
2063
2064 void folderview_reflect_prefs(void)
2065 {
2066         FolderView *folderview = mainwindow_get_mainwindow()->folderview;
2067         normal_style = normal_color_style = bold_style =
2068                 bold_color_style = bold_tgtfold_style = NULL;
2069
2070         folderview_init(folderview);
2071         folderview_set_all();
2072 }
2073
2074 static void drag_state_stop(FolderView *folderview)
2075 {
2076         if (folderview->drag_timer)
2077                 gtk_timeout_remove(folderview->drag_timer);
2078         folderview->drag_timer = 0;
2079         folderview->drag_node = NULL;
2080 }
2081
2082 static gint folderview_defer_expand(FolderView *folderview)
2083 {
2084         if (folderview->drag_node) {
2085                 folderview_recollapse_nodes(folderview, folderview->drag_node);
2086                 if (folderview->drag_item->collapsed) {
2087                         gtk_ctree_expand(GTK_CTREE(folderview->ctree), folderview->drag_node);
2088                         folderview->nodes_to_recollapse = g_slist_append
2089                                 (folderview->nodes_to_recollapse, folderview->drag_node);
2090                 }
2091         }
2092         folderview->drag_item  = NULL;
2093         folderview->drag_timer = 0;
2094         return FALSE;
2095 }
2096
2097 static void drag_state_start(FolderView *folderview, GtkCTreeNode *node, FolderItem *item)
2098 {
2099         /* the idea is that we call drag_state_start() whenever we want expansion to
2100          * start after 'prefs_common.hover_time' msecs. if we want to cancel expansion,
2101          * we need to call drag_state_stop() */
2102         drag_state_stop(folderview);
2103         /* request expansion */
2104         if (0 != (folderview->drag_timer = gtk_timeout_add
2105                         (prefs_common.hover_timeout,
2106                          (GtkFunction)folderview_defer_expand,
2107                          folderview))) {
2108                 folderview->drag_node = node;
2109                 folderview->drag_item = item;
2110         }
2111 }
2112
2113 static void folderview_start_drag(GtkWidget *widget, gint button, GdkEvent *event,
2114                                   FolderView       *folderview)
2115 {
2116         GdkDragContext *context;
2117
2118         g_return_if_fail(folderview != NULL);
2119         if (folderview->selected == NULL) return;
2120         if (folderview->nodes_to_recollapse)
2121                 g_slist_free(folderview->nodes_to_recollapse);
2122         folderview->nodes_to_recollapse = NULL;
2123         context = gtk_drag_begin(widget, folderview->target_list,
2124                                  GDK_ACTION_MOVE|GDK_ACTION_COPY|GDK_ACTION_DEFAULT, button, event);
2125         gtk_drag_set_icon_default(context);
2126 }
2127
2128 static void folderview_drag_data_get(GtkWidget        *widget,
2129                                      GdkDragContext   *drag_context,
2130                                      GtkSelectionData *selection_data,
2131                                      guint             info,
2132                                      guint             time,
2133                                      FolderView       *folderview)
2134 {
2135         FolderItem *item;
2136         GList *cur;
2137         gchar *source = NULL;
2138
2139         for (cur = GTK_CLIST(folderview->ctree)->selection;
2140              cur != NULL; cur = cur->next) {
2141                 item = gtk_ctree_node_get_row_data
2142                         (GTK_CTREE(folderview->ctree),
2143                          GTK_CTREE_NODE(cur->data));
2144                 if (item) {
2145                         source = g_strdup_printf ("FROM_OTHER_FOLDER%s", folder_item_get_identifier(item));
2146                         gtk_selection_data_set(selection_data,
2147                                                selection_data->target, 8,
2148                                                source, strlen(source));
2149                         break;
2150                 } else
2151                         return;
2152         }
2153 }
2154
2155 gboolean folderview_update_folder(gpointer source, gpointer userdata)
2156 {
2157         FolderUpdateData *hookdata;
2158         FolderView *folderview;
2159         GtkWidget *ctree;
2160
2161         hookdata = source;
2162         folderview = (FolderView *) userdata;
2163         g_return_val_if_fail(hookdata != NULL, FALSE);
2164         g_return_val_if_fail(folderview != NULL, FALSE);
2165
2166         ctree = folderview->ctree;
2167         g_return_val_if_fail(ctree != NULL, FALSE);
2168
2169         if (hookdata->update_flags & FOLDER_ADD_FOLDERITEM)
2170                 folderview_create_folder_node(folderview, hookdata->item);
2171         else if (hookdata->update_flags & FOLDER_REMOVE_FOLDERITEM) {
2172                 GtkCTreeNode *node;
2173
2174                 node = gtk_ctree_find_by_row_data(GTK_CTREE(ctree), NULL, hookdata->item);
2175                 if (node != NULL)
2176                         gtk_ctree_remove_node(GTK_CTREE(ctree), node);
2177         } else if (hookdata->update_flags & (FOLDER_TREE_CHANGED | FOLDER_ADD_FOLDER | FOLDER_REMOVE_FOLDER))
2178                 folderview_set(folderview);
2179
2180         return FALSE;
2181 }
2182
2183 static gboolean folderview_drag_motion_cb(GtkWidget      *widget,
2184                                           GdkDragContext *context,
2185                                           gint            x,
2186                                           gint            y,
2187                                           guint           time,
2188                                           FolderView     *folderview)
2189 {
2190         gint row, column;
2191         FolderItem *item = NULL, *src_item = NULL;
2192         GtkCTreeNode *node = NULL;
2193         gboolean acceptable = FALSE;
2194         GtkAdjustment *pos = gtk_scrolled_window_get_vadjustment(
2195                                 GTK_SCROLLED_WINDOW(folderview->scrolledwin));
2196         int height = (int)pos->page_size;
2197         int total_height = (int)pos->upper;
2198         int vpos = (int) pos->value;
2199
2200         if (gtk_clist_get_selection_info
2201                 (GTK_CLIST(widget), x - 24, y - 24, &row, &column)) {
2202                 GtkWidget *srcwidget;
2203
2204                 if (y > height - 24 && height + vpos < total_height)
2205                         gtk_adjustment_set_value(pos, (vpos+5 > height ? height : vpos+5));
2206
2207                 if (y < 48 && y > 0)
2208                         gtk_adjustment_set_value(pos, (vpos-5 < 0 ? 0 : vpos-5));
2209
2210                 node = gtk_ctree_node_nth(GTK_CTREE(widget), row);
2211                 item = gtk_ctree_node_get_row_data(GTK_CTREE(widget), node);
2212                 src_item = folderview->summaryview->folder_item;
2213
2214                 srcwidget = gtk_drag_get_source_widget(context);
2215                 if (srcwidget == folderview->summaryview->ctree) {
2216                         /* comes from summaryview */
2217                         /* we are copying messages, so only accept folder items that are not
2218                            the source item, are no root items and can copy messages */
2219                         if (item && item->folder && folder_item_parent(item) != NULL && src_item &&
2220                             src_item != item && FOLDER_CLASS(item->folder)->copy_msg != NULL)
2221                                 acceptable = TRUE;
2222                 } else if (srcwidget == folderview->ctree) {
2223                         /* comes from folderview */
2224                         /* we are moving folder items, only accept folders that are not
2225                            the source items and can copy messages and create folder items */
2226                         if (item && item->folder && src_item && src_item != item &&
2227                             FOLDER_CLASS(item->folder)->copy_msg != NULL &&
2228                             FOLDER_CLASS(item->folder)->create_folder != NULL)
2229                                 acceptable = TRUE;
2230                 }
2231         }
2232
2233         if (acceptable || (src_item && src_item == item))
2234                 drag_state_start(folderview, node, item);
2235
2236         if (acceptable) {
2237                 g_signal_handlers_block_by_func
2238                         (G_OBJECT(widget),
2239                          G_CALLBACK(folderview_selected), folderview);
2240                 gtk_ctree_select(GTK_CTREE(widget), node);
2241                 g_signal_handlers_unblock_by_func
2242                         (G_OBJECT(widget),
2243                          G_CALLBACK(folderview_selected), folderview);
2244                 gdk_drag_status(context,
2245                                         (context->actions == GDK_ACTION_COPY ?
2246                                         GDK_ACTION_COPY : GDK_ACTION_MOVE) , time);
2247         } else {
2248                 gtk_ctree_select(GTK_CTREE(widget), folderview->opened);
2249                 gdk_drag_status(context, 0, time);
2250         }
2251
2252         return acceptable;
2253 }
2254
2255 static void folderview_drag_leave_cb(GtkWidget      *widget,
2256                                      GdkDragContext *context,
2257                                      guint           time,
2258                                      FolderView     *folderview)
2259 {
2260         drag_state_stop(folderview);
2261         gtk_ctree_select(GTK_CTREE(widget), folderview->opened);
2262 }
2263
2264 static void folderview_drag_received_cb(GtkWidget        *widget,
2265                                         GdkDragContext   *drag_context,
2266                                         gint              x,
2267                                         gint              y,
2268                                         GtkSelectionData *data,
2269                                         guint             info,
2270                                         guint             time,
2271                                         FolderView       *folderview)
2272 {
2273         gint row, column;
2274         FolderItem *item, *src_item;
2275         GtkCTreeNode *node;
2276
2277         drag_state_stop(folderview);
2278         if ((void *)strstr(data->data, "FROM_OTHER_FOLDER") != (void *)data->data) {
2279                 /* comes from summaryview */
2280                 if (gtk_clist_get_selection_info
2281                         (GTK_CLIST(widget), x - 24, y - 24, &row, &column) == 0)
2282                         return;
2283
2284                 node = gtk_ctree_node_nth(GTK_CTREE(widget), row);
2285                 item = gtk_ctree_node_get_row_data(GTK_CTREE(widget), node);
2286                 src_item = folderview->summaryview->folder_item;
2287
2288                 /* re-check (due to acceptable possibly set for folder moves */
2289                 if (!(item && item->folder && item->path && !item->no_select &&
2290                       src_item && src_item != item && FOLDER_CLASS(item->folder)->copy_msg != NULL)) {
2291                         return;
2292                 }
2293                 if (item && src_item) {
2294                         switch (drag_context->action) {
2295                         case GDK_ACTION_COPY:
2296                                 summary_copy_selected_to(folderview->summaryview, item);
2297                                 gtk_drag_finish(drag_context, TRUE, FALSE, time);
2298                                 break;
2299                         case GDK_ACTION_MOVE:
2300                         case GDK_ACTION_DEFAULT:
2301                         default:
2302                                 if (FOLDER_CLASS(src_item->folder)->remove_msg == NULL)
2303                                         summary_copy_selected_to(folderview->summaryview, item);
2304                                 else
2305                                         summary_move_selected_to(folderview->summaryview, item);
2306                                 gtk_drag_finish(drag_context, TRUE, TRUE, time);
2307                         }
2308                 } else
2309                         gtk_drag_finish(drag_context, FALSE, FALSE, time);
2310         } else {
2311                 /* comes from folderview */
2312                 char *source;
2313
2314                 source = data->data + 17;
2315                 if (gtk_clist_get_selection_info
2316                     (GTK_CLIST(widget), x - 24, y - 24, &row, &column) == 0
2317                     || *source == 0) {
2318                         gtk_drag_finish(drag_context, FALSE, FALSE, time);
2319                         return;
2320                 }
2321                 node = gtk_ctree_node_nth(GTK_CTREE(widget), row);
2322                 item = gtk_ctree_node_get_row_data(GTK_CTREE(widget), node);
2323                 src_item = folder_find_item_from_identifier(source);
2324
2325                 if (!item || item->no_select || !src_item || src_item->stype != F_NORMAL) {
2326                         gtk_drag_finish(drag_context, FALSE, FALSE, time);
2327                         return;
2328                 }
2329
2330                 folderview_move_folder(folderview, src_item, item);
2331                 gtk_drag_finish(drag_context, TRUE, TRUE, time);
2332         }
2333         folderview->nodes_to_recollapse = NULL;
2334 }
2335
2336 static void folderview_drag_end_cb(GtkWidget        *widget,
2337                                    GdkDragContext   *drag_context,
2338                                    FolderView       *folderview)
2339 {
2340         drag_state_stop(folderview);
2341         g_slist_free(folderview->nodes_to_recollapse);
2342         folderview->nodes_to_recollapse = NULL;
2343 }
2344
2345 void folderview_register_popup(FolderViewPopup *fpopup)
2346 {
2347         GList *folderviews;
2348
2349         for (folderviews = folderview_list; folderviews != NULL; folderviews = g_list_next(folderviews)) {
2350                 FolderView *folderview = folderviews->data;
2351                 GtkItemFactory *factory;
2352
2353                 factory = create_ifactory(folderview, fpopup);
2354                 g_hash_table_insert(folderview->popups, fpopup->klass, factory);
2355         }
2356         g_hash_table_insert(folderview_popups, fpopup->klass, fpopup);
2357 }
2358
2359 void folderview_unregister_popup(FolderViewPopup *fpopup)
2360 {
2361         GList *folderviews;
2362
2363         for (folderviews = folderview_list; folderviews != NULL; folderviews = g_list_next(folderviews)) {
2364                 FolderView *folderview = folderviews->data;
2365
2366                 g_hash_table_remove(folderview->popups, fpopup->klass);
2367         }
2368         g_hash_table_remove(folderview_popups, fpopup->klass);
2369 }