src/folderview.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2013 Hiroyuki Yamamoto and the Claws Mail team
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 3 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  17  *
  18  */
  19
  20 #include "defs.h"
  21
  22 #include <glib.h>
  23 #include <glib/gi18n.h>
  24 #include <gdk/gdkkeysyms.h>
  25 #include <gtk/gtk.h>
  26 #include <stdio.h>
  27 #include <string.h>
  28 #include <stdlib.h>
  29
  30 #include "main.h"
  31 #include "mainwindow.h"
  32 #include "folderview.h"
  33 #include "summaryview.h"
  34 #include "summary_search.h"
  35 #include "inputdialog.h"
  36 #include "manage_window.h"
  37 #include "alertpanel.h"
  38 #include "menu.h"
  39 #include "stock_pixmap.h"
  40 #include "procmsg.h"
  41 #include "utils.h"
  42 #include "gtkutils.h"
  43 #include "prefs_common.h"
  44 #include "prefs_account.h"
  45 #include "prefs_filtering.h"
  46 #include "prefs_folder_item.h"
  47 #include "account.h"
  48 #include "folder.h"
  49 #include "foldersel.h"
  50 #include "inc.h"
  51 #include "statusbar.h"
  52 #include "hooks.h"
  53 #include "folderutils.h"
  54 #include "partial_download.h"
  55 #include "prefs_folder_column.h"
  56 #include "filtering.h"
  57 #include "quicksearch.h"
  58 #include "manual.h"
  59 #include "timing.h"
  60 #include "log.h"
  61
  62 #define COL_FOLDER_WIDTH        150
  63 #define COL_NUM_WIDTH           32
  64
  65 static GList *folderview_list = NULL;
  66
  67 static GtkStyle *normal_style;
  68 static GtkStyle *normal_color_style;
  69 static GtkStyle *bold_style;
  70 static GtkStyle *bold_color_style;
  71 static GtkStyle *bold_tgtfold_style;
  72
  73 static GdkPixbuf *inboxxpm;
  74 static GdkPixbuf *inboxhrmxpm;
  75 static GdkPixbuf *inboxopenxpm;
  76 static GdkPixbuf *inboxopenhrmxpm;
  77 static GdkPixbuf *outboxxpm;
  78 static GdkPixbuf *outboxhrmxpm;
  79 static GdkPixbuf *outboxopenxpm;
  80 static GdkPixbuf *outboxopenhrmxpm;
  81 static GdkPixbuf *folderxpm;
  82 static GdkPixbuf *folderhrmxpm;
  83 static GdkPixbuf *folderopenxpm;
  84 static GdkPixbuf *folderopenhrmxpm;
  85 static GdkPixbuf *trashopenxpm;
  86 static GdkPixbuf *trashopenhrmxpm;
  87 static GdkPixbuf *trashxpm;
  88 static GdkPixbuf *trashhrmxpm;
  89 static GdkPixbuf *queuexpm;
  90 static GdkPixbuf *queuehrmxpm;
  91 static GdkPixbuf *queueopenxpm;
  92 static GdkPixbuf *queueopenhrmxpm;
  93 static GdkPixbuf *draftsxpm;
  94 static GdkPixbuf *draftsopenxpm;
  95 static GdkPixbuf *noselectxpm;
  96
  97 static GdkPixbuf *m_inboxxpm;
  98 static GdkPixbuf *m_inboxhrmxpm;
  99 static GdkPixbuf *m_inboxopenxpm;
 100 static GdkPixbuf *m_inboxopenhrmxpm;
 101 static GdkPixbuf *m_outboxxpm;
 102 static GdkPixbuf *m_outboxhrmxpm;
 103 static GdkPixbuf *m_outboxopenxpm;
 104 static GdkPixbuf *m_outboxopenhrmxpm;
 105 static GdkPixbuf *m_folderxpm;
 106 static GdkPixbuf *m_folderhrmxpm;
 107 static GdkPixbuf *m_folderopenxpm;
 108 static GdkPixbuf *m_folderopenhrmxpm;
 109 static GdkPixbuf *m_trashopenxpm;
 110 static GdkPixbuf *m_trashopenhrmxpm;
 111 static GdkPixbuf *m_trashxpm;
 112 static GdkPixbuf *m_trashhrmxpm;
 113 static GdkPixbuf *m_queuexpm;
 114 static GdkPixbuf *m_queuehrmxpm;
 115 static GdkPixbuf *m_queueopenxpm;
 116 static GdkPixbuf *m_queueopenhrmxpm;
 117 static GdkPixbuf *m_draftsxpm;
 118 static GdkPixbuf *m_draftsopenxpm;
 119
 120 static GdkPixbuf *newxpm;
 121 static GdkPixbuf *unreadxpm;
 122 static GdkPixbuf *readxpm;
 123
 124 static void folderview_select_node       (FolderView    *folderview,
 125                                           GtkCMCTreeNode        *node);
 126 static void folderview_set_folders       (FolderView    *folderview);
 127 static void folderview_sort_folders      (FolderView    *folderview,
 128                                           GtkCMCTreeNode        *root,
 129                                           Folder        *folder);
 130 static void folderview_append_folder     (FolderView    *folderview,
 131                                           Folder        *folder);
 132 static void folderview_update_node       (FolderView    *folderview,
 133                                           GtkCMCTreeNode        *node);
 134
 135 static gint folderview_clist_compare    (GtkCMCList     *clist,
 136                                          gconstpointer   ptr1,
 137                                          gconstpointer   ptr2);
 138
 139 /* callback functions */
 140 static gboolean folderview_button_pressed       (GtkWidget      *ctree,
 141                                                  GdkEventButton *event,
 142                                                  FolderView     *folderview);
 143 static gboolean folderview_button_released      (GtkWidget      *ctree,
 144                                                  GdkEventButton *event,
 145                                                  FolderView     *folderview);
 146 static gboolean folderview_key_pressed  (GtkWidget      *widget,
 147                                          GdkEventKey    *event,
 148                                          FolderView     *folderview);
 149 static void folderview_selected         (GtkCMCTree     *ctree,
 150                                          GtkCMCTreeNode *row,
 151                                          gint            column,
 152                                          FolderView     *folderview);
 153 static void folderview_tree_expanded    (GtkCMCTree     *ctree,
 154                                          GtkCMCTreeNode *node,
 155                                          FolderView     *folderview);
 156 static void folderview_tree_collapsed   (GtkCMCTree     *ctree,
 157                                          GtkCMCTreeNode *node,
 158                                          FolderView     *folderview);
 159 static void folderview_popup_close      (GtkMenuShell   *menu_shell,
 160                                          FolderView     *folderview);
 161 static void folderview_col_resized      (GtkCMCList     *clist,
 162                                          gint            column,
 163                                          gint            width,
 164                                          FolderView     *folderview);
 165
 166 static void mark_all_read_cb            (GtkAction      *action,
 167                                          gpointer        data);
 168
 169 static void folderview_empty_trash_cb   (GtkAction      *action,
 170                                          gpointer        data);
 171
 172 static void folderview_send_queue_cb    (GtkAction      *action,
 173                                          gpointer        data);
 174
 175 static void folderview_search_cb        (GtkAction      *action,
 176                                          gpointer        data);
 177 static void folderview_run_processing_cb(GtkAction      *action,
 178                                          gpointer        data);
 179
 180 static void folderview_property_cb      (GtkAction      *action,
 181                                          gpointer        data);
 182
 183 static gboolean folderview_drag_motion_cb(GtkWidget      *widget,
 184                                           GdkDragContext *context,
 185                                           gint            x,
 186                                           gint            y,
 187                                           guint           time,
 188                                           FolderView     *folderview);
 189 static void folderview_drag_leave_cb     (GtkWidget        *widget,
 190                                           GdkDragContext   *context,
 191                                           guint             time,
 192                                           FolderView       *folderview);
 193 static void folderview_drag_received_cb  (GtkWidget        *widget,
 194                                           GdkDragContext   *drag_context,
 195                                           gint              x,
 196                                           gint              y,
 197                                           GtkSelectionData *data,
 198                                           guint             info,
 199                                           guint             time,
 200                                           FolderView       *folderview);
 201 #ifndef GENERIC_UMPC
 202 static void folderview_start_drag        (GtkWidget *widget, gint button, GdkEvent *event,
 203                                           FolderView       *folderview);
 204 #endif
 205 static void folderview_drag_data_get     (GtkWidget        *widget,
 206                                           GdkDragContext   *drag_context,
 207                                           GtkSelectionData *selection_data,
 208                                           guint             info,
 209                                           guint             time,
 210                                           FolderView       *folderview);
 211 static void folderview_drag_end_cb       (GtkWidget        *widget,
 212                                           GdkDragContext   *drag_context,
 213                                           FolderView       *folderview);
 214
 215 static void folderview_create_folder_node       (FolderView       *folderview,
 216                                           FolderItem       *item);
 217 static gboolean folderview_update_folder         (gpointer          source,
 218                                           gpointer          userdata);
 219 static gboolean folderview_update_item_claws     (gpointer          source,
 220                                           gpointer          data);
 221 static void folderview_processing_cb(GtkAction *action, gpointer data);
 222 static void folderview_set_sens_and_popup_menu(FolderView *folderview, gint row,
 223                                 GdkEventButton *event);
 224
 225 GHashTable *folderview_popups;
 226
 227 static GtkActionEntry folderview_common_popup_entries[] =
 228 {
 229         {"FolderViewPopup",                     NULL, "FolderViewPopup" },
 230         {"FolderViewPopup/MarkAllRead",         NULL, N_("Mark all re_ad"), NULL, NULL, G_CALLBACK(mark_all_read_cb) },
 231         {"FolderViewPopup/---",                 NULL, "---" },
 232         {"FolderViewPopup/RunProcessing",       NULL, N_("R_un processing rules"), NULL, NULL, G_CALLBACK(folderview_run_processing_cb) },
 233         {"FolderViewPopup/SearchFolder",        NULL, N_("_Search folder..."), NULL, NULL, G_CALLBACK(folderview_search_cb) },
 234         {"FolderViewPopup/Properties",          NULL, N_("_Properties..."), NULL, NULL, G_CALLBACK(folderview_property_cb) },
 235         {"FolderViewPopup/Processing",          NULL, N_("Process_ing..."), NULL, NULL, G_CALLBACK(folderview_processing_cb) },
 236         {"FolderViewPopup/EmptyTrash",          NULL, N_("Empty _trash..."), NULL, NULL, G_CALLBACK(folderview_empty_trash_cb) },
 237         {"FolderViewPopup/SendQueue",           NULL, N_("Send _queue..."), NULL, NULL, G_CALLBACK(folderview_send_queue_cb) },
 238
 239 };
 240
 241 GtkTargetEntry folderview_drag_types[] =
 242 {
 243         {"claws-mail/internal", GTK_TARGET_SAME_APP, TARGET_DUMMY},
 244         {"text/uri-list", 0, TARGET_MAIL_URI_LIST}
 245 };
 246
 247 void folderview_initialize(void)
 248 {
 249         FolderViewPopup *fpopup;
 250
 251         fpopup = g_new0(FolderViewPopup, 1);
 252
 253         fpopup->klass = "common";
 254         fpopup->path = "<CommonFolder>";
 255         fpopup->entries = folderview_common_popup_entries;
 256         fpopup->n_entries = G_N_ELEMENTS(folderview_common_popup_entries);
 257         fpopup->set_sensitivity = NULL;
 258
 259         folderview_popups = g_hash_table_new(g_str_hash, g_str_equal);
 260         g_hash_table_insert(folderview_popups, "common", fpopup);
 261 }
 262
 263 static GtkActionGroup *create_action_group(FolderView *folderview, FolderViewPopup *fpopup)
 264 {
 265         FolderViewPopup *fpopup_common;
 266         GtkActionGroup *action_group;
 267
 268         action_group = cm_menu_create_action_group(
 269                                 fpopup->path,
 270                                 fpopup->entries, fpopup->n_entries,
 271                                 (gpointer)folderview);
 272
 273         if (fpopup->toggle_entries)
 274                 gtk_action_group_add_toggle_actions(action_group, fpopup->toggle_entries,
 275                                 fpopup->n_toggle_entries,
 276                                 (gpointer)folderview);
 277         if (fpopup->radio_entries)
 278                 gtk_action_group_add_radio_actions(action_group, fpopup->radio_entries,
 279                                 fpopup->n_radio_entries, fpopup->radio_default,
 280                                 G_CALLBACK(fpopup->radio_callback),
 281                                 (gpointer)folderview);
 282
 283         fpopup_common = g_hash_table_lookup(folderview_popups, "common");
 284         if (fpopup_common != fpopup) {
 285                 gtk_action_group_add_actions(action_group, fpopup_common->entries,
 286                                 fpopup_common->n_entries,
 287                                 (gpointer)folderview);
 288                 if (fpopup_common->toggle_entries)
 289                         gtk_action_group_add_toggle_actions(action_group, fpopup_common->toggle_entries,
 290                                         fpopup_common->n_toggle_entries,
 291                                         (gpointer)folderview);
 292                 if (fpopup_common->radio_entries)
 293                         gtk_action_group_add_radio_actions(action_group, fpopup_common->radio_entries,
 294                                         fpopup_common->n_radio_entries, fpopup_common->radio_default,
 295                                         G_CALLBACK(fpopup_common->radio_callback),
 296                                         (gpointer)folderview);
 297         }
 298
 299         return action_group;
 300 }
 301
 302 static void create_action_groups(gpointer key, gpointer value, gpointer data)
 303 {
 304         FolderView *folderview = data;
 305         FolderViewPopup *fpopup = value;
 306         GtkActionGroup *group;
 307
 308         group = create_action_group(folderview, fpopup);
 309         g_hash_table_insert(folderview->popups, fpopup->klass, group);
 310 }
 311
 312 static void folderview_column_set_titles(FolderView *folderview)
 313 {
 314         GtkWidget *ctree = folderview->ctree;
 315         GtkWidget *label_folder;
 316         GtkWidget *label_new;
 317         GtkWidget *label_unread;
 318         GtkWidget *label_total;
 319         GtkWidget *hbox_folder;
 320         GtkWidget *hbox_new;
 321         GtkWidget *hbox_unread;
 322         GtkWidget *hbox_total;
 323         gint *col_pos = folderview->col_pos;
 324
 325         debug_print("setting titles...\n");
 326         gtk_widget_realize(folderview->ctree);
 327         gtk_widget_show_all(folderview->scrolledwin);
 328
 329         /* CLAWS: titles for "New" and "Unread" show new & unread pixmaps
 330          * instead text (text overflows making them unreadable and ugly) */
 331         stock_pixbuf_gdk(ctree, STOCK_PIXMAP_NEW,
 332                          &newxpm);
 333         stock_pixbuf_gdk(ctree, STOCK_PIXMAP_UNREAD,
 334                          &unreadxpm);
 335         stock_pixbuf_gdk(ctree, STOCK_PIXMAP_READ,
 336                          &readxpm);
 337
 338         label_folder = gtk_label_new(_("Folder"));
 339         label_new = gtk_image_new_from_pixbuf(newxpm);
 340         label_unread = gtk_image_new_from_pixbuf(unreadxpm);
 341         label_total = gtk_image_new_from_pixbuf(readxpm);
 342
 343         gtk_cmclist_column_titles_active(GTK_CMCLIST(ctree));
 344
 345         hbox_folder = gtk_hbox_new(FALSE, 4);
 346         hbox_new = gtk_hbox_new(FALSE, 4);
 347         hbox_unread = gtk_hbox_new(FALSE, 4);
 348         hbox_total = gtk_hbox_new(FALSE, 4);
 349
 350         /* left justified */
 351         gtk_box_pack_start(GTK_BOX(hbox_folder), label_folder, TRUE, TRUE, 0);
 352         gtk_misc_set_alignment (GTK_MISC (label_folder), 0, 0.5);
 353         gtk_box_pack_start(GTK_BOX(hbox_new), label_new, TRUE, TRUE, 0);
 354         gtk_misc_set_alignment (GTK_MISC (label_new), 1, 0.5);
 355         gtk_box_pack_start(GTK_BOX(hbox_unread), label_unread, TRUE, TRUE, 0);
 356         gtk_misc_set_alignment (GTK_MISC (label_unread), 1, 0.5);
 357         gtk_box_pack_start(GTK_BOX(hbox_total), label_total, TRUE, TRUE, 0);
 358         gtk_misc_set_alignment (GTK_MISC (label_total), 1, 0.5);
 359
 360         gtk_widget_show_all(hbox_folder);
 361         gtk_widget_show_all(hbox_new);
 362         gtk_widget_show_all(hbox_unread);
 363         gtk_widget_show_all(hbox_total);
 364
 365 #ifdef GENERIC_UMPC
 366         gtk_widget_set_size_request(hbox_new, -1, 20);
 367         gtk_widget_set_size_request(hbox_unread, -1, 20);
 368         gtk_widget_set_size_request(hbox_total, -1, 20);
 369 #endif
 370
 371         gtk_cmclist_set_column_widget(GTK_CMCLIST(ctree),col_pos[F_COL_FOLDER],hbox_folder);
 372         gtk_cmclist_set_column_widget(GTK_CMCLIST(ctree),col_pos[F_COL_NEW],hbox_new);
 373         gtk_cmclist_set_column_widget(GTK_CMCLIST(ctree),col_pos[F_COL_UNREAD],hbox_unread);
 374         gtk_cmclist_set_column_widget(GTK_CMCLIST(ctree),col_pos[F_COL_TOTAL],hbox_total);
 375
 376 #ifdef GENERIC_UMPC
 377         GTK_EVENTS_FLUSH();
 378 #endif
 379
 380         gtk_sctree_set_column_tooltip(GTK_SCTREE(ctree), col_pos[F_COL_NEW], _("New"));
 381         gtk_sctree_set_column_tooltip(GTK_SCTREE(ctree), col_pos[F_COL_UNREAD], _("Unread"));
 382         gtk_sctree_set_column_tooltip(GTK_SCTREE(ctree), col_pos[F_COL_TOTAL], _("Total"));
 383 }
 384
 385 static gboolean folderview_popup_menu(GtkWidget *widget, gpointer data)
 386 {
 387         FolderView *folderview = (FolderView *)data;
 388         GdkEventButton event;
 389         if (folderview_get_selected_item(folderview) == NULL)
 390                 return FALSE;
 391
 392         event.button = 3;
 393         event.time = gtk_get_current_event_time();
 394
 395         folderview_set_sens_and_popup_menu(folderview, -1,
 396                                 &event);
 397
 398         return TRUE;
 399 }
 400
 401
 402 static GtkWidget *folderview_ctree_create(FolderView *folderview)
 403 {
 404         GtkWidget *ctree;
 405         gint *col_pos;
 406         FolderColumnState *col_state;
 407         FolderColumnType type;
 408         gchar *titles[N_FOLDER_COLS];
 409         gint i;
 410         GtkWidget *scrolledwin = folderview->scrolledwin;
 411
 412         debug_print("creating tree...\n");
 413         memset(titles, 0, sizeof(titles));
 414
 415         col_state = prefs_folder_column_get_config();
 416         memset(titles, 0, sizeof(titles));
 417
 418         col_pos = folderview->col_pos;
 419
 420         for (i = 0; i < N_FOLDER_COLS; i++) {
 421                 folderview->col_state[i] = col_state[i];
 422                 type = col_state[i].type;
 423                 col_pos[type] = i;
 424         }
 425
 426         titles[col_pos[F_COL_FOLDER]] = _("Folder");
 427         titles[col_pos[F_COL_NEW]]    = _("New");
 428         titles[col_pos[F_COL_UNREAD]] = _("Unread");
 429         /* TRANSLATORS: This in Number sign in American style */
 430         titles[col_pos[F_COL_TOTAL]]  = _("#");
 431
 432         ctree = gtk_sctree_new_with_titles(N_FOLDER_COLS, col_pos[F_COL_FOLDER],
 433                                            titles);
 434
 435         if (prefs_common.show_col_headers == FALSE)
 436                 gtk_cmclist_column_titles_hide(GTK_CMCLIST(ctree));
 437
 438
 439         gtk_cmclist_set_selection_mode(GTK_CMCLIST(ctree), GTK_SELECTION_BROWSE);
 440         gtk_cmclist_set_column_justification(GTK_CMCLIST(ctree), col_pos[F_COL_NEW],
 441                                            GTK_JUSTIFY_RIGHT);
 442         gtk_cmclist_set_column_justification(GTK_CMCLIST(ctree),
 443                                            col_pos[F_COL_UNREAD],
 444                                            GTK_JUSTIFY_RIGHT);
 445         gtk_cmclist_set_column_justification(GTK_CMCLIST(ctree),
 446                                            col_pos[F_COL_TOTAL],
 447                                            GTK_JUSTIFY_RIGHT);
 448         gtk_cmctree_set_line_style(GTK_CMCTREE(ctree), GTK_CMCTREE_LINES_NONE);
 449         gtk_cmctree_set_expander_style(GTK_CMCTREE(ctree),
 450                              GTK_CMCTREE_EXPANDER_TRIANGLE);
 451
 452         gtk_sctree_set_stripes(GTK_SCTREE(ctree), prefs_common.use_stripes_in_summaries);
 453         gtk_sctree_set_recursive_expand(GTK_SCTREE(ctree), FALSE);
 454
 455         gtk_cmctree_set_indent(GTK_CMCTREE(ctree), CTREE_INDENT);
 456         gtk_cmclist_set_compare_func(GTK_CMCLIST(ctree), folderview_clist_compare);
 457
 458         /* don't let title buttons take key focus */
 459         for (i = 0; i < N_FOLDER_COLS; i++) {
 460                 gtkut_widget_set_can_focus(GTK_CMCLIST(ctree)->column[i].button, FALSE);
 461                 gtk_cmclist_set_column_width(GTK_CMCLIST(ctree), col_pos[i],
 462                                    prefs_common.folder_col_size[i]);
 463                 gtk_cmclist_set_column_visibility
 464                         (GTK_CMCLIST(ctree), i, col_state[i].visible);
 465         }
 466
 467         g_signal_connect(G_OBJECT(ctree), "key_press_event",
 468                          G_CALLBACK(folderview_key_pressed),
 469                          folderview);
 470         g_signal_connect(G_OBJECT(ctree), "button_press_event",
 471                          G_CALLBACK(folderview_button_pressed),
 472                          folderview);
 473         g_signal_connect(G_OBJECT(ctree), "popup-menu",
 474                          G_CALLBACK(folderview_popup_menu), folderview);
 475         g_signal_connect(G_OBJECT(ctree), "button_release_event",
 476                          G_CALLBACK(folderview_button_released),
 477                          folderview);
 478         g_signal_connect(G_OBJECT(ctree), "tree_select_row",
 479                          G_CALLBACK(folderview_selected), folderview);
 480 #ifndef GENERIC_UMPC
 481         /* drag-n-dropping folders on maemo is impractical as this
 482          * opens the folder almost everytime */
 483         g_signal_connect(G_OBJECT(ctree), "start_drag",
 484                          G_CALLBACK(folderview_start_drag), folderview);
 485 #endif
 486         g_signal_connect(G_OBJECT(ctree), "drag_data_get",
 487                          G_CALLBACK(folderview_drag_data_get),
 488                          folderview);
 489
 490         g_signal_connect_after(G_OBJECT(ctree), "tree_expand",
 491                                G_CALLBACK(folderview_tree_expanded),
 492                                folderview);
 493         g_signal_connect_after(G_OBJECT(ctree), "tree_collapse",
 494                                G_CALLBACK(folderview_tree_collapsed),
 495                                folderview);
 496
 497         g_signal_connect(G_OBJECT(ctree), "resize_column",
 498                          G_CALLBACK(folderview_col_resized),
 499                          folderview);
 500
 501         /* drop callback */
 502         gtk_drag_dest_set(ctree, GTK_DEST_DEFAULT_ALL & ~GTK_DEST_DEFAULT_HIGHLIGHT,
 503                           folderview_drag_types, 2,
 504                           GDK_ACTION_MOVE | GDK_ACTION_COPY | GDK_ACTION_DEFAULT);
 505         g_signal_connect(G_OBJECT(ctree), "drag_motion",
 506                          G_CALLBACK(folderview_drag_motion_cb),
 507                          folderview);
 508         g_signal_connect(G_OBJECT(ctree), "drag_leave",
 509                          G_CALLBACK(folderview_drag_leave_cb),
 510                          folderview);
 511         g_signal_connect(G_OBJECT(ctree), "drag_data_received",
 512                          G_CALLBACK(folderview_drag_received_cb),
 513                          folderview);
 514         g_signal_connect(G_OBJECT(ctree), "drag_end",
 515                          G_CALLBACK(folderview_drag_end_cb),
 516                          folderview);
 517
 518         gtk_container_add(GTK_CONTAINER(scrolledwin), ctree);
 519
 520         return ctree;
 521 }
 522
 523 void folderview_set_column_order(FolderView *folderview)
 524 {
 525         GtkWidget *ctree = folderview->ctree;
 526         FolderItem *item = folderview_get_selected_item(folderview);
 527         FolderItem *sel_item = NULL, *op_item = NULL;
 528         GtkWidget *scrolledwin = folderview->scrolledwin;
 529
 530         if (folderview->drag_timer_id != 0) {
 531                 g_source_remove(folderview->drag_timer_id);
 532                 folderview->drag_timer_id = 0;
 533         }
 534         if (folderview->deferred_refresh_id != 0) {
 535                 g_source_remove(folderview->deferred_refresh_id);
 536                 folderview->deferred_refresh_id = 0;
 537         }
 538         if (folderview->scroll_timeout_id != 0) {
 539                 g_source_remove(folderview->scroll_timeout_id);
 540                 folderview->scroll_timeout_id = 0;
 541         }
 542         if (folderview->postpone_select_id != 0) {
 543                 g_source_remove(folderview->postpone_select_id);
 544                 folderview->postpone_select_id = 0;
 545         }
 546
 547         if (folderview->selected)
 548                 sel_item = gtk_cmctree_node_get_row_data(GTK_CMCTREE(ctree), folderview->selected);
 549         if (folderview->opened)
 550                 op_item = gtk_cmctree_node_get_row_data(GTK_CMCTREE(ctree), folderview->opened);
 551
 552         debug_print("recreating tree...\n");
 553         gtk_widget_destroy(folderview->ctree);
 554
 555
 556         folderview->ctree = ctree = folderview_ctree_create(folderview);
 557         gtk_scrolled_window_set_hadjustment(GTK_SCROLLED_WINDOW(scrolledwin),
 558                                             GTK_CMCLIST(ctree)->hadjustment);
 559         gtk_scrolled_window_set_vadjustment(GTK_SCROLLED_WINDOW(scrolledwin),
 560                                             GTK_CMCLIST(ctree)->vadjustment);
 561         gtk_widget_show(ctree);
 562
 563         if (sel_item)
 564                 folderview->selected = gtk_cmctree_find_by_row_data(GTK_CMCTREE(ctree), NULL, sel_item);
 565         if (op_item)
 566                 folderview->opened = gtk_cmctree_find_by_row_data(GTK_CMCTREE(ctree), NULL, op_item);
 567
 568         folderview_set(folderview);
 569         folderview_column_set_titles(folderview);
 570
 571         folderview_select(folderview,item);
 572 }
 573
 574 FolderView *folderview_create(void)
 575 {
 576         FolderView *folderview;
 577         GtkWidget *scrolledwin;
 578         GtkWidget *ctree;
 579
 580         debug_print("Creating folder view...\n");
 581         folderview = g_new0(FolderView, 1);
 582
 583         scrolledwin = gtk_scrolled_window_new(NULL, NULL);
 584         gtk_scrolled_window_set_policy
 585                 (GTK_SCROLLED_WINDOW(scrolledwin),
 586                  GTK_POLICY_AUTOMATIC,
 587                  prefs_common.folderview_vscrollbar_policy);
 588         gtk_widget_set_size_request(scrolledwin,
 589                              prefs_common.folderview_width,
 590                              prefs_common.folderview_height);
 591
 592         folderview->scrolledwin  = scrolledwin;
 593         ctree = folderview_ctree_create(folderview);
 594
 595         /* create popup factories */
 596         folderview->popups = g_hash_table_new(g_str_hash, g_str_equal);
 597         g_hash_table_foreach(folderview_popups, create_action_groups, folderview);
 598
 599         folderview->ctree        = ctree;
 600
 601         folderview->folder_update_callback_id =
 602                 hooks_register_hook(FOLDER_UPDATE_HOOKLIST, folderview_update_folder, (gpointer) folderview);
 603         folderview->folder_item_update_callback_id =
 604                 hooks_register_hook(FOLDER_ITEM_UPDATE_HOOKLIST, folderview_update_item_claws, (gpointer) folderview);
 605
 606         gtk_widget_show_all(scrolledwin);
 607
 608         folderview->target_list = gtk_target_list_new(folderview_drag_types, 2);
 609         folderview_list = g_list_append(folderview_list, folderview);
 610
 611         folderview->drag_timer_id       = 0;
 612         folderview->deferred_refresh_id = 0;
 613         folderview->scroll_timeout_id   = 0;
 614         folderview->postpone_select_id  = 0;
 615
 616         return folderview;
 617 }
 618
 619 void folderview_init(FolderView *folderview)
 620 {
 621         GtkWidget *ctree = folderview->ctree;
 622         GdkColor gdk_color;
 623
 624         stock_pixbuf_gdk(ctree, STOCK_PIXMAP_INBOX_CLOSE, &inboxxpm);
 625         stock_pixbuf_gdk(ctree, STOCK_PIXMAP_INBOX_CLOSE_HRM, &inboxhrmxpm);
 626         stock_pixbuf_gdk(ctree, STOCK_PIXMAP_INBOX_OPEN, &inboxopenxpm);
 627         stock_pixbuf_gdk(ctree, STOCK_PIXMAP_INBOX_OPEN_HRM, &inboxopenhrmxpm);
 628         stock_pixbuf_gdk(ctree, STOCK_PIXMAP_OUTBOX_CLOSE, &outboxxpm);
 629         stock_pixbuf_gdk(ctree, STOCK_PIXMAP_OUTBOX_CLOSE_HRM, &outboxhrmxpm);
 630         stock_pixbuf_gdk(ctree, STOCK_PIXMAP_OUTBOX_OPEN, &outboxopenxpm);
 631         stock_pixbuf_gdk(ctree, STOCK_PIXMAP_OUTBOX_OPEN_HRM, &outboxopenhrmxpm);
 632         stock_pixbuf_gdk(ctree, STOCK_PIXMAP_DIR_CLOSE, &folderxpm);
 633         stock_pixbuf_gdk(ctree, STOCK_PIXMAP_DIR_CLOSE_HRM, &folderhrmxpm);
 634         stock_pixbuf_gdk(ctree, STOCK_PIXMAP_DIR_OPEN, &folderopenxpm);
 635         stock_pixbuf_gdk(ctree, STOCK_PIXMAP_DIR_OPEN_HRM, &folderopenhrmxpm);
 636         stock_pixbuf_gdk(ctree, STOCK_PIXMAP_TRASH_OPEN, &trashopenxpm);
 637         stock_pixbuf_gdk(ctree, STOCK_PIXMAP_TRASH_OPEN_HRM, &trashopenhrmxpm);
 638         stock_pixbuf_gdk(ctree, STOCK_PIXMAP_TRASH_CLOSE, &trashxpm);
 639         stock_pixbuf_gdk(ctree, STOCK_PIXMAP_TRASH_CLOSE_HRM, &trashhrmxpm);
 640         stock_pixbuf_gdk(ctree, STOCK_PIXMAP_QUEUE_CLOSE, &queuexpm);
 641         stock_pixbuf_gdk(ctree, STOCK_PIXMAP_QUEUE_CLOSE_HRM, &queuehrmxpm);
 642         stock_pixbuf_gdk(ctree, STOCK_PIXMAP_QUEUE_OPEN, &queueopenxpm);
 643         stock_pixbuf_gdk(ctree, STOCK_PIXMAP_QUEUE_OPEN_HRM, &queueopenhrmxpm);
 644         stock_pixbuf_gdk(ctree, STOCK_PIXMAP_DRAFTS_CLOSE, &draftsxpm);
 645         stock_pixbuf_gdk(ctree, STOCK_PIXMAP_DRAFTS_OPEN, &draftsopenxpm);
 646         stock_pixbuf_gdk(ctree, STOCK_PIXMAP_DIR_NOSELECT, &noselectxpm);
 647
 648         stock_pixbuf_gdk(ctree, STOCK_PIXMAP_INBOX_CLOSE_MARK, &m_inboxxpm);
 649         stock_pixbuf_gdk(ctree, STOCK_PIXMAP_INBOX_CLOSE_HRM_MARK, &m_inboxhrmxpm);
 650         stock_pixbuf_gdk(ctree, STOCK_PIXMAP_INBOX_OPEN_MARK, &m_inboxopenxpm);
 651         stock_pixbuf_gdk(ctree, STOCK_PIXMAP_INBOX_OPEN_HRM_MARK, &m_inboxopenhrmxpm);
 652         stock_pixbuf_gdk(ctree, STOCK_PIXMAP_OUTBOX_CLOSE_MARK, &m_outboxxpm);
 653         stock_pixbuf_gdk(ctree, STOCK_PIXMAP_OUTBOX_CLOSE_HRM_MARK, &m_outboxhrmxpm);
 654         stock_pixbuf_gdk(ctree, STOCK_PIXMAP_OUTBOX_OPEN_MARK, &m_outboxopenxpm);
 655         stock_pixbuf_gdk(ctree, STOCK_PIXMAP_OUTBOX_OPEN_HRM_MARK, &m_outboxopenhrmxpm);
 656         stock_pixbuf_gdk(ctree, STOCK_PIXMAP_DIR_CLOSE_MARK, &m_folderxpm);
 657         stock_pixbuf_gdk(ctree, STOCK_PIXMAP_DIR_CLOSE_HRM_MARK, &m_folderhrmxpm);
 658         stock_pixbuf_gdk(ctree, STOCK_PIXMAP_DIR_OPEN_MARK, &m_folderopenxpm);
 659         stock_pixbuf_gdk(ctree, STOCK_PIXMAP_DIR_OPEN_HRM_MARK, &m_folderopenhrmxpm);
 660         stock_pixbuf_gdk(ctree, STOCK_PIXMAP_TRASH_OPEN_MARK, &m_trashopenxpm);
 661         stock_pixbuf_gdk(ctree, STOCK_PIXMAP_TRASH_OPEN_HRM_MARK, &m_trashopenhrmxpm);
 662         stock_pixbuf_gdk(ctree, STOCK_PIXMAP_TRASH_CLOSE_MARK, &m_trashxpm);
 663         stock_pixbuf_gdk(ctree, STOCK_PIXMAP_TRASH_CLOSE_HRM_MARK, &m_trashhrmxpm);
 664         stock_pixbuf_gdk(ctree, STOCK_PIXMAP_QUEUE_CLOSE_MARK, &m_queuexpm);
 665         stock_pixbuf_gdk(ctree, STOCK_PIXMAP_QUEUE_CLOSE_HRM_MARK, &m_queuehrmxpm);
 666         stock_pixbuf_gdk(ctree, STOCK_PIXMAP_QUEUE_OPEN_MARK, &m_queueopenxpm);
 667         stock_pixbuf_gdk(ctree, STOCK_PIXMAP_QUEUE_OPEN_HRM_MARK, &m_queueopenhrmxpm);
 668         stock_pixbuf_gdk(ctree, STOCK_PIXMAP_DRAFTS_CLOSE_MARK, &m_draftsxpm);
 669         stock_pixbuf_gdk(ctree, STOCK_PIXMAP_DRAFTS_OPEN_MARK, &m_draftsopenxpm);
 670
 671         if (!normal_style) {
 672                 PangoFontDescription *font_desc;
 673                 normal_style = gtk_style_copy(gtk_widget_get_style(ctree));
 674                 font_desc = pango_font_description_from_string(NORMAL_FONT);
 675                 if (font_desc) {
 676                         if (normal_style->font_desc)
 677                                 pango_font_description_free
 678                                         (normal_style->font_desc);
 679                         normal_style->font_desc = font_desc;
 680                 }
 681                 gtkut_convert_int_to_gdk_color(prefs_common.color_new, &gdk_color);
 682                 normal_color_style = gtk_style_copy(normal_style);
 683                 normal_color_style->fg[GTK_STATE_NORMAL] = gdk_color;
 684
 685                 gtk_widget_set_style(ctree, normal_style);
 686         }
 687
 688         if (!bold_style) {
 689                 gtkut_convert_int_to_gdk_color(prefs_common.color_new, &gdk_color);
 690                 bold_style = gtk_style_copy(gtk_widget_get_style(ctree));
 691                 if (prefs_common.derive_from_normal_font || !BOLD_FONT) {
 692                         pango_font_description_set_weight
 693                                 (bold_style->font_desc, PANGO_WEIGHT_BOLD);
 694                 } else {
 695                         PangoFontDescription *font_desc;
 696                         font_desc = pango_font_description_from_string(BOLD_FONT);
 697                         if (font_desc) {
 698                                 if (bold_style->font_desc)
 699                                         pango_font_description_free
 700                                                 (bold_style->font_desc);
 701                                 bold_style->font_desc = font_desc;
 702                         }
 703                 }
 704                 bold_color_style = gtk_style_copy(bold_style);
 705                 bold_color_style->fg[GTK_STATE_NORMAL] = gdk_color;
 706
 707                 bold_tgtfold_style = gtk_style_copy(bold_style);
 708                 bold_tgtfold_style->fg[GTK_STATE_NORMAL] = folderview->color_op;
 709         }
 710 }
 711
 712 static gboolean folderview_defer_set(gpointer data)
 713 {
 714         FolderView *folderview = (FolderView *)data;
 715         MainWindow *mainwin = folderview->mainwin;
 716
 717         if (!mainwin)
 718                 return FALSE;
 719         if (mainwin->lock_count)
 720                 return TRUE;
 721
 722         debug_print("doing deferred folderview_set now\n");
 723         folderview_set(folderview);
 724
 725         folderview->deferred_refresh_id = 0;
 726         return FALSE;
 727 }
 728
 729 void folderview_set(FolderView *folderview)
 730 {
 731         GtkCMCTree *ctree = GTK_CMCTREE(folderview->ctree);
 732         MainWindow *mainwin = folderview->mainwin;
 733         FolderItem *sel_item = NULL, *op_item = NULL;
 734
 735         if (!mainwin)
 736                 return;
 737
 738         if (mainwin->lock_count) {
 739                 if (folderview->deferred_refresh_id == 0)
 740                         folderview->deferred_refresh_id =
 741                                 g_timeout_add(500, folderview_defer_set, folderview);
 742                 debug_print("deferred folderview_set\n");
 743                 return;
 744         }
 745
 746         inc_lock();
 747         debug_print("Setting folder info...\n");
 748         STATUSBAR_PUSH(mainwin, _("Setting folder info..."));
 749
 750         main_window_cursor_wait(mainwin);
 751
 752         if (folderview->selected)
 753                 sel_item = gtk_cmctree_node_get_row_data(ctree, folderview->selected);
 754         if (folderview->opened)
 755                 op_item = gtk_cmctree_node_get_row_data(ctree, folderview->opened);
 756
 757         folderview->selected = NULL;
 758         folderview->opened = NULL;
 759
 760         gtk_cmclist_freeze(GTK_CMCLIST(ctree));
 761         gtk_cmclist_clear(GTK_CMCLIST(ctree));
 762
 763         folderview_set_folders(folderview);
 764
 765         if (sel_item)
 766                 folderview->selected = gtk_cmctree_find_by_row_data(ctree, NULL, sel_item);
 767         if (op_item)
 768                 folderview->opened = gtk_cmctree_find_by_row_data(ctree, NULL, op_item);
 769
 770         gtk_cmclist_thaw(GTK_CMCLIST(ctree));
 771         main_window_cursor_normal(mainwin);
 772         STATUSBAR_POP(mainwin);
 773         inc_unlock();
 774 }
 775
 776 void folderview_set_all(void)
 777 {
 778         GList *list;
 779
 780         for (list = folderview_list; list != NULL; list = list->next)
 781                 folderview_set((FolderView *)list->data);
 782 }
 783
 784 void folderview_select(FolderView *folderview, FolderItem *item)
 785 {
 786         GtkCMCTree *ctree = GTK_CMCTREE(folderview->ctree);
 787         GtkCMCTreeNode *node;
 788         GtkCMCTreeNode *old_selected = folderview->selected;
 789
 790         if (!item) return;
 791
 792         node = gtk_cmctree_find_by_row_data(ctree, NULL, item);
 793         if (node) folderview_select_node(folderview, node);
 794
 795         if (old_selected != node)
 796                 folder_update_op_count();
 797 }
 798
 799 static void mark_all_read_cb(GtkAction *action, gpointer data)
 800 {
 801         FolderView *folderview = (FolderView *)data;
 802         FolderItem *item;
 803         AlertValue val;
 804
 805         item = folderview_get_selected_item(folderview);
 806         if (item == NULL)
 807                 return;
 808
 809         if (folderview->summaryview->folder_item != item
 810         &&  prefs_common.ask_mark_all_read) {
 811                 val = alertpanel_full(_("Mark all as read"),
 812                         _("Do you really want to mark all mails in this "
 813                           "folder as read?"), GTK_STOCK_NO, GTK_STOCK_YES, NULL,
 814                           TRUE, NULL, ALERT_QUESTION, G_ALERTDEFAULT);
 815
 816                 if ((val & ~G_ALERTDISABLE) != G_ALERTALTERNATE)
 817                         return;
 818                 else if (val & G_ALERTDISABLE)
 819                         prefs_common.ask_mark_all_read = FALSE;
 820         }
 821
 822
 823         folder_item_update_freeze();
 824         if (folderview->summaryview->folder_item != item)
 825                 summary_lock(folderview->summaryview);
 826         else
 827                 summary_freeze(folderview->summaryview);
 828
 829         folderutils_mark_all_read(item);
 830
 831         if (folderview->summaryview->folder_item != item)
 832                 summary_unlock(folderview->summaryview);
 833         else
 834                 summary_thaw(folderview->summaryview);
 835         folder_item_update_thaw();
 836 }
 837
 838 static void folderview_select_node(FolderView *folderview, GtkCMCTreeNode *node)
 839 {
 840         GtkCMCTree *ctree = GTK_CMCTREE(folderview->ctree);
 841
 842         cm_return_if_fail(node != NULL);
 843
 844         if (folderview->open_folder) {
 845                 return;
 846         }
 847
 848         folderview->open_folder = TRUE;
 849         gtkut_ctree_set_focus_row(ctree, node);
 850         gtk_cmctree_select(ctree, node);
 851         if ((folderview->summaryview->folder_item &&
 852             folderview->summaryview->folder_item->total_msgs > 0) ||
 853              prefs_common.layout_mode == SMALL_LAYOUT)
 854                 summary_grab_focus(folderview->summaryview);
 855         else
 856                 gtk_widget_grab_focus(folderview->ctree);
 857
 858         gtkut_ctree_expand_parent_all(ctree, node);
 859 }
 860
 861 void folderview_unselect(FolderView *folderview)
 862 {
 863         if (folderview->opened && !GTK_CMCTREE_ROW(folderview->opened)->children)
 864                 gtk_cmctree_collapse
 865                         (GTK_CMCTREE(folderview->ctree), folderview->opened);
 866
 867         folderview->selected = folderview->opened = NULL;
 868 }
 869
 870 static GtkCMCTreeNode *folderview_find_next_with_flag(GtkCMCTree *ctree,
 871                                                       GtkCMCTreeNode *node,
 872                                                       MsgPermFlags flag)
 873 {
 874         FolderItem *item;
 875
 876         if (node)
 877                 node = gtkut_ctree_node_next(ctree, node);
 878         else
 879                 node = GTK_CMCTREE_NODE(GTK_CMCLIST(ctree)->row_list);
 880
 881         for (; node != NULL; node = gtkut_ctree_node_next(ctree, node)) {
 882                 item = gtk_cmctree_node_get_row_data(ctree, node);
 883                 if (item->stype == F_TRASH)
 884                         continue;
 885                 switch (flag) {
 886                 case MSG_UNREAD:
 887                         if(item->unread_msgs > 0)
 888                                 return node;
 889                         break;
 890                 case MSG_NEW:
 891                         if(item->new_msgs > 0)
 892                                 return node;
 893                         break;
 894                 case MSG_MARKED:
 895                         if(item->marked_msgs > 0)
 896                                 return node;
 897                         break;
 898                 }
 899         }
 900
 901         return NULL;
 902 }
 903
 904 void folderview_select_next_with_flag(FolderView *folderview,
 905                                       MsgPermFlags flag,
 906                                       gboolean force_open)
 907 {
 908         GtkCMCTree *ctree = GTK_CMCTREE(folderview->ctree);
 909         GtkCMCTreeNode *node = NULL;
 910         EntryAction last_summary_select_prio = prefs_common.summary_select_prio[0];
 911         gboolean last_open = prefs_common.always_show_msg;
 912
 913         switch (flag) {
 914         case MSG_UNREAD:
 915                 prefs_common.summary_select_prio[0] = ACTION_UNREAD;
 916                 break;
 917         case MSG_NEW:
 918                 prefs_common.summary_select_prio[0] = ACTION_NEW;
 919                 break;
 920         case MSG_MARKED:
 921                 prefs_common.summary_select_prio[0] = ACTION_MARKED;
 922                 break;
 923         }
 924         prefs_common.always_show_msg = force_open ? OPENMSG_ALWAYS : last_open;
 925
 926         node = folderview_find_next_with_flag(ctree, folderview->opened, flag);
 927         if (node != NULL) {
 928                 folderview_select_node(folderview, node);
 929                 goto out;
 930         }
 931
 932         if (!folderview->opened ||
 933             folderview->opened == GTK_CMCTREE_NODE(GTK_CMCLIST(ctree)->row_list)) {
 934                 goto out;
 935         }
 936
 937         /* search again from the first node */
 938         node = folderview_find_next_with_flag(ctree, NULL, flag);
 939         if (node != NULL)
 940                 folderview_select_node(folderview, node);
 941
 942 out:
 943         prefs_common.summary_select_prio[0] = last_summary_select_prio;
 944         prefs_common.always_show_msg = last_open;
 945 }
 946
 947 FolderItem *folderview_get_selected_item(FolderView *folderview)
 948 {
 949         GtkCMCTree *ctree = GTK_CMCTREE(folderview->ctree);
 950
 951         if (!folderview->selected) return NULL;
 952         return gtk_cmctree_node_get_row_data(ctree, folderview->selected);
 953 }
 954
 955 static void folderview_set_folders(FolderView *folderview)
 956 {
 957         GList *list;
 958         list = folder_get_list();
 959
 960         for (; list != NULL; list = list->next) {
 961                 folderview_append_folder(folderview, FOLDER(list->data));
 962         }
 963 }
 964
 965 static gchar *get_scan_str(FolderItem *item)
 966 {
 967         if (item->path)
 968                 return g_strdup_printf(_("Scanning folder %s%c%s..."),
 969                                       item->folder->name, G_DIR_SEPARATOR,
 970                                       item->path);
 971         else
 972                 return g_strdup_printf(_("Scanning folder %s..."),
 973                                       item->folder->name);
 974 }
 975 static void folderview_scan_tree_func(Folder *folder, FolderItem *item,
 976                                       gpointer data)
 977 {
 978         GList *list;
 979         for (list = folderview_list; list != NULL; list = list->next) {
 980                 FolderView *folderview = (FolderView *)list->data;
 981                 MainWindow *mainwin = folderview->mainwin;
 982                 gchar *str = get_scan_str(item);
 983
 984                 STATUSBAR_PUSH(mainwin, str);
 985                 STATUSBAR_POP(mainwin);
 986                 g_free(str);
 987         }
 988 }
 989
 990 void folderview_rescan_tree(Folder *folder, gboolean rebuild)
 991 {
 992         GtkWidget *window;
 993         MainWindow *mainwin = mainwindow_get_mainwindow();
 994         FolderView *folderview = NULL;
 995         GtkAdjustment *pos = NULL;
 996         gint height = 0;
 997
 998         cm_return_if_fail(folder != NULL);
 999
1000         if (!folder->klass->scan_tree) return;
1001
1002         if (rebuild &&
1003             alertpanel_full(_("Rebuild folder tree"),
1004                          _("Rebuilding the folder tree will remove "
1005                            "local caches. Do you want to continue?"),
1006                          GTK_STOCK_NO, GTK_STOCK_YES, NULL, FALSE,
1007                          NULL, ALERT_WARNING, G_ALERTDEFAULT)
1008                 != G_ALERTALTERNATE) {
1009                 return;
1010         }
1011
1012         inc_lock();
1013         if (rebuild)
1014                 window = label_window_create(_("Rebuilding folder tree..."));
1015         else
1016                 window = label_window_create(_("Scanning folder tree..."));
1017
1018         if (mainwin)
1019                 folderview = mainwin->folderview;
1020
1021         if (folderview) {
1022                 pos = gtk_scrolled_window_get_vadjustment(
1023                                         GTK_SCROLLED_WINDOW(folderview->scrolledwin));
1024                 height = gtk_adjustment_get_value(pos);
1025         }
1026
1027         folder_set_ui_func(folder, folderview_scan_tree_func, NULL);
1028         folder_scan_tree(folder, rebuild);
1029         folder_set_ui_func(folder, NULL, NULL);
1030
1031         folderview_set_all();
1032
1033         if (folderview) {
1034                 pos = gtk_scrolled_window_get_vadjustment(
1035                                         GTK_SCROLLED_WINDOW(folderview->scrolledwin));
1036                 gtk_adjustment_set_value(pos, height);
1037                 gtk_adjustment_changed(pos);
1038         }
1039         label_window_destroy(window);
1040         inc_unlock();
1041 }
1042
1043 /** folderview_check_new()
1044  *  Scan and update the folder and return the
1045  *  count the number of new messages since last check.
1046  *  \param folder the folder to check for new messages
1047  *  \return the number of new messages since last check
1048  */
1049 gint folderview_check_new(Folder *folder)
1050 {
1051         GList *list;
1052         FolderItem *item;
1053         FolderView *folderview;
1054         GtkCMCTree *ctree;
1055         GtkCMCTreeNode *node;
1056         gint new_msgs = 0;
1057         gint former_new_msgs = 0;
1058         gint former_new = 0, former_unread = 0, former_total;
1059
1060         for (list = folderview_list; list != NULL; list = list->next) {
1061                 folderview = (FolderView *)list->data;
1062                 ctree = GTK_CMCTREE(folderview->ctree);
1063                 folderview->scanning_folder = folder;
1064                 inc_lock();
1065                 main_window_lock(folderview->mainwin);
1066
1067                 for (node = GTK_CMCTREE_NODE(GTK_CMCLIST(ctree)->row_list);
1068                      node != NULL; node = gtkut_ctree_node_next(ctree, node)) {
1069                         gchar *str = NULL;
1070                         item = gtk_cmctree_node_get_row_data(ctree, node);
1071                         if (!item || !item->path || !item->folder) continue;
1072                         if (item->no_select) continue;
1073                         if (folder && folder != item->folder) continue;
1074                         if (!folder && !FOLDER_IS_LOCAL(item->folder)) continue;
1075                         if (!item->prefs->newmailcheck) continue;
1076                         if (item->processing_pending == TRUE) {
1077                                 debug_print("skipping %s, processing pending\n",
1078                                         item->path ? item->path : item->name);
1079                                 continue;
1080                         }
1081                         if (item->scanning != ITEM_NOT_SCANNING) {
1082                                 debug_print("skipping %s, scanning\n",
1083                                         item->path ? item->path : item->name);
1084                                 continue;
1085                         }
1086
1087                         str = get_scan_str(item);
1088
1089                         STATUSBAR_PUSH(folderview->mainwin, str);
1090                         GTK_EVENTS_FLUSH();
1091                         g_free(str);
1092
1093                         folderview_scan_tree_func(item->folder, item, NULL);
1094                         former_new    = item->new_msgs;
1095                         former_unread = item->unread_msgs;
1096                         former_total  = item->total_msgs;
1097
1098                         if (item->folder->klass->scan_required &&
1099                             (item->folder->klass->scan_required(item->folder, item) ||
1100                              item->folder->inbox == item ||
1101                              item->opened == TRUE ||
1102                              item->processing_pending == TRUE)) {
1103                                 if (folder_item_scan(item) < 0) {
1104                                         if (folder) {
1105                                                 summaryview_unlock(folderview->summaryview, item);
1106                                                 if (FOLDER_TYPE(item->folder) == F_NEWS || FOLDER_IS_LOCAL(folder)) {
1107                                                         log_error(LOG_PROTOCOL, _("Couldn't scan folder %s\n"),
1108                                                                 item->path ? item->path:item->name);
1109                                                         STATUSBAR_POP(folderview->mainwin);
1110                                                         continue;
1111                                                 } else if (!FOLDER_IS_LOCAL(folder)) {
1112                                                         STATUSBAR_POP(folderview->mainwin);
1113                                                         break;
1114                                                 }
1115                                         }
1116                                 }
1117                         } else if (!item->folder->klass->scan_required) {
1118                                 if (folder_item_scan(item) < 0) {
1119                                         summaryview_unlock(folderview->summaryview, item);
1120                                         if (folder && !FOLDER_IS_LOCAL(folder)) {
1121                                                 STATUSBAR_POP(folderview->mainwin);
1122                                                 break;
1123                                         }
1124                                 }
1125                         }
1126                         if (former_new    != item->new_msgs ||
1127                             former_unread != item->unread_msgs ||
1128                             former_total  != item->total_msgs)
1129                                 folderview_update_node(folderview, node);
1130
1131                         new_msgs += item->new_msgs;
1132                         former_new_msgs += former_new;
1133                         STATUSBAR_POP(folderview->mainwin);
1134                 }
1135                 folderview->scanning_folder = NULL;
1136                 main_window_unlock(folderview->mainwin);
1137                 inc_unlock();
1138         }
1139
1140         folder_write_list();
1141         /* Number of new messages since last check is the just the difference
1142          * between former_new_msgs and new_msgs. If new_msgs is less than
1143          * former_new_msgs, that would mean another session accessed the folder
1144          * and the result is not well defined.
1145          */
1146         new_msgs = (former_new_msgs < new_msgs ? new_msgs - former_new_msgs : 0);
1147         return new_msgs;
1148 }
1149
1150 void folderview_check_new_all(void)
1151 {
1152         GList *list;
1153         GtkWidget *window;
1154         FolderView *folderview;
1155
1156         folderview = (FolderView *)folderview_list->data;
1157
1158         inc_lock();
1159         main_window_lock(folderview->mainwin);
1160         window = label_window_create
1161                 (_("Checking for new messages in all folders..."));
1162
1163         list = folder_get_list();
1164         for (; list != NULL; list = list->next) {
1165                 Folder *folder = list->data;
1166
1167                 folderview_check_new(folder);
1168         }
1169
1170         folder_write_list();
1171         folderview_set_all();
1172
1173         label_window_destroy(window);
1174         main_window_unlock(folderview->mainwin);
1175         inc_unlock();
1176 }
1177
1178 static gboolean folderview_have_new_children_sub(FolderView *folderview,
1179                                                  FolderItem *item,
1180                                                  gboolean in_sub)
1181 {
1182         GNode *node = NULL;
1183
1184         if (!item || !item->folder || !item->folder->node)
1185                 return FALSE;
1186
1187         node = item->folder->node;
1188
1189         node = g_node_find(node, G_PRE_ORDER, G_TRAVERSE_ALL, item);
1190         node = node->children;
1191
1192         if (in_sub &&
1193             (item->new_msgs > 0 ||
1194             (folder_has_parent_of_type(item, F_QUEUE) && item->total_msgs > 0))) {
1195                 return TRUE;
1196         }
1197
1198         while (node != NULL) {
1199                 if (node && node->data) {
1200                         FolderItem *next_item = (FolderItem*) node->data;
1201                         node = node->next;
1202                         if (folderview_have_new_children_sub(folderview,
1203                                                              next_item, TRUE))
1204                                 return TRUE;
1205                 }
1206         }
1207
1208         return FALSE;
1209 }
1210
1211 static gboolean folderview_have_new_children(FolderView *folderview,
1212                                              FolderItem *item)
1213 {
1214         return folderview_have_new_children_sub(folderview, item, FALSE);
1215 }
1216
1217 static gboolean folderview_have_unread_children_sub(FolderView *folderview,
1218                                                     FolderItem *item,
1219                                                     gboolean in_sub)
1220 {
1221         GNode *node = NULL;
1222
1223         if (!item || !item->folder || !item->folder->node)
1224                 return FALSE;
1225
1226         node = item->folder->node;
1227
1228         node = g_node_find(node, G_PRE_ORDER, G_TRAVERSE_ALL, item);
1229         node = node->children;
1230
1231         if (in_sub &&
1232             (item->unread_msgs > 0 ||
1233             (folder_has_parent_of_type(item, F_QUEUE) && item->total_msgs > 0))) {
1234                 return TRUE;
1235         }
1236
1237         while (node != NULL) {
1238                 if (node && node->data) {
1239                         FolderItem *next_item = (FolderItem*) node->data;
1240                         node = node->next;
1241                         if (folderview_have_unread_children_sub(folderview,
1242                                                                 next_item,
1243                                                                 TRUE))
1244                                 return TRUE;
1245                 }
1246         }
1247
1248         return FALSE;
1249 }
1250
1251 static gboolean folderview_have_unread_children(FolderView *folderview,
1252                                                 FolderItem *item)
1253 {
1254         return folderview_have_unread_children_sub(folderview, item, FALSE);
1255 }
1256
1257 static gboolean folderview_have_matching_children_sub(FolderView *folderview,
1258                                                       FolderItem *item,
1259                                                       gboolean in_sub)
1260 {
1261         GNode *node = NULL;
1262
1263         if (!item || !item->folder || !item->folder->node)
1264                 return FALSE;
1265
1266         node = item->folder->node;
1267
1268         node = g_node_find(node, G_PRE_ORDER, G_TRAVERSE_ALL, item);
1269         node = node->children;
1270
1271         if (in_sub && item->search_match){
1272                 return TRUE;
1273         }
1274
1275         while (node != NULL) {
1276                 if (node && node->data) {
1277                         FolderItem *next_item = (FolderItem*) node->data;
1278                         node = node->next;
1279                         if (folderview_have_matching_children_sub(folderview,
1280                                                                   next_item,
1281                                                                   TRUE))
1282                                 return TRUE;
1283                 }
1284         }
1285
1286         return FALSE;
1287 }
1288
1289 static gboolean folderview_have_matching_children(FolderView *folderview,
1290                                                   FolderItem *item)
1291 {
1292         return folderview_have_matching_children_sub(folderview, item, FALSE);
1293 }
1294
1295 static gboolean folderview_have_marked_children_sub(FolderView *folderview,
1296                                                     FolderItem *item,
1297                                                     gboolean in_sub)
1298 {
1299         GNode *node = NULL;
1300
1301         if (!item || !item->folder || !item->folder->node)
1302                 return FALSE;
1303
1304         node = item->folder->node;
1305
1306         node = g_node_find(node, G_PRE_ORDER, G_TRAVERSE_ALL, item);
1307         node = node->children;
1308
1309         if (item->marked_msgs != 0) {
1310                 return TRUE;
1311         }
1312
1313         while (node != NULL) {
1314                 if (node && node->data) {
1315                         FolderItem *next_item = (FolderItem*) node->data;
1316                         node = node->next;
1317                         if (folderview_have_marked_children_sub(folderview,
1318                                                                 next_item, TRUE))
1319                                 return TRUE;
1320                 }
1321         }
1322
1323         return FALSE;
1324 }
1325
1326 static gboolean folderview_have_marked_children(FolderView *folderview,
1327                                              FolderItem *item)
1328 {
1329         return folderview_have_marked_children_sub(folderview, item, FALSE);
1330 }
1331
1332 static void folderview_update_node(FolderView *folderview, GtkCMCTreeNode *node)
1333 {
1334         GtkCMCTree *ctree = GTK_CMCTREE(folderview->ctree);
1335         GtkStyle *style = NULL;
1336         GtkStyle *color_style = NULL;
1337         FolderItem *item;
1338         GdkPixbuf *xpm, *openxpm;
1339         static GdkPixbuf *searchicon;
1340         gboolean mark = FALSE;
1341         gchar *name;
1342         gchar *str;
1343         gboolean add_unread_mark;
1344         gboolean add_sub_match_mark;
1345         gboolean use_bold, use_color;
1346         gint *col_pos = folderview->col_pos;
1347         SpecialFolderItemType stype;
1348
1349         item = gtk_cmctree_node_get_row_data(ctree, node);
1350         cm_return_if_fail(item != NULL);
1351
1352         if (!GTK_CMCTREE_ROW(node)->expanded)
1353                 mark = folderview_have_marked_children(folderview, item);
1354         else
1355                 mark = (item->marked_msgs != 0);
1356
1357         stype = item->stype;
1358         if (stype == F_NORMAL) {
1359                 if (folder_has_parent_of_type(item, F_TRASH))
1360                         stype = F_TRASH;
1361                 else if (folder_has_parent_of_type(item, F_DRAFT))
1362                         stype = F_DRAFT;
1363                 else if (folder_has_parent_of_type(item, F_OUTBOX))
1364                         stype = F_OUTBOX;
1365                 else if (folder_has_parent_of_type(item, F_QUEUE))
1366                         stype = F_QUEUE;
1367         }
1368         switch (stype) {
1369         case F_INBOX:
1370                 if (item->hide_read_msgs || item->hide_read_threads) {
1371                         xpm = mark?m_inboxhrmxpm:inboxhrmxpm;
1372                         openxpm = mark?m_inboxopenhrmxpm:inboxopenhrmxpm;
1373                 } else {
1374                         xpm = mark?m_inboxxpm:inboxxpm;
1375                         openxpm = mark?m_inboxopenxpm:inboxopenxpm;
1376                 }
1377                 break;
1378         case F_OUTBOX:
1379                 if (item->hide_read_msgs || item->hide_read_threads) {
1380                         xpm = mark?m_outboxhrmxpm:outboxhrmxpm;
1381                         openxpm = mark?m_outboxopenhrmxpm:outboxopenhrmxpm;
1382                 } else {
1383                         xpm = mark?m_outboxxpm:outboxxpm;
1384                         openxpm = mark?m_outboxopenxpm:outboxopenxpm;
1385                 }
1386                 break;
1387         case F_QUEUE:
1388                 if (item->hide_read_msgs || item->hide_read_threads) {
1389                         xpm = mark?m_queuehrmxpm:queuehrmxpm;
1390                         openxpm = mark?m_queueopenhrmxpm:queueopenhrmxpm;
1391                 } else {
1392                         xpm = mark?m_queuexpm:queuexpm;
1393                         openxpm = mark?m_queueopenxpm:queueopenxpm;
1394                 }
1395                 break;
1396         case F_TRASH:
1397                 if (item->hide_read_msgs || item->hide_read_threads) {
1398                         xpm = mark?m_trashhrmxpm:trashhrmxpm;
1399                         openxpm = mark?m_trashopenhrmxpm:trashopenhrmxpm;
1400                 } else {
1401                         xpm = mark?m_trashxpm:trashxpm;
1402                         openxpm = mark?m_trashopenxpm:trashopenxpm;
1403                 }
1404                 break;
1405         case F_DRAFT:
1406                 xpm = mark?m_draftsxpm:draftsxpm;
1407                 openxpm = mark?m_draftsopenxpm:draftsopenxpm;
1408                 break;
1409         default:
1410                 if (item->hide_read_msgs || item->hide_read_threads) {
1411                         xpm = mark?m_folderhrmxpm:folderhrmxpm;
1412                         openxpm = mark?m_folderopenhrmxpm:folderopenhrmxpm;
1413                 } else {
1414                         xpm = mark?m_folderxpm:folderxpm;
1415                         openxpm = mark?m_folderopenxpm:folderopenxpm;
1416                 }
1417         }
1418
1419         if (item->no_select) {
1420                 xpm = openxpm = noselectxpm;
1421         }
1422
1423         name = folder_item_get_name(item);
1424
1425         if (!GTK_CMCTREE_ROW(node)->expanded) {
1426                 add_unread_mark = folderview_have_unread_children(
1427                                         folderview, item);
1428                 add_sub_match_mark = folderview_have_matching_children(
1429                                         folderview, item);
1430         } else {
1431                 add_unread_mark = FALSE;
1432                 add_sub_match_mark = FALSE;
1433         }
1434
1435         if (item->search_match) {
1436                 if (!searchicon) {
1437                         stock_pixbuf_gdk(folderview->ctree, STOCK_PIXMAP_QUICKSEARCH,
1438                          &searchicon);
1439                 }
1440                 xpm = openxpm = searchicon;
1441         }
1442
1443         str = NULL;
1444         if (prefs_common.display_folder_unread) {
1445                 if (folder_has_parent_of_type(item, F_QUEUE)) {
1446                         /* only total_msgs matters here */
1447                         if (item->total_msgs > 0) {
1448                                 /* show total number (should be equal to the unread number)
1449                                    and signs if any */
1450                                 str = g_strdup_printf("%s (%d%s%s)",
1451                                                         name, item->total_msgs,
1452                                                         (add_unread_mark || add_sub_match_mark) ? "+" : "",
1453                                                         (item->unreadmarked_msgs > 0) ? "!" : "");
1454                         }
1455                 } else {
1456                         if (prefs_common.display_folder_unread == 1) {
1457                                 if (item->unread_msgs > 0) {
1458                                         /* show unread number and signs */
1459                                         str = g_strdup_printf("%s (%d%s%s)",
1460                                                                 name, item->unread_msgs,
1461                                                                 (add_unread_mark || add_sub_match_mark) ? "+" : "",
1462                                                                 (item->unreadmarked_msgs > 0) ? "!" : "");
1463                                 }
1464                         } else {
1465                                 if (item->total_msgs > 0) {
1466                                         /* show unread number, total number and signs if any */
1467                                         str = g_strdup_printf("%s (%d/%d%s%s)",
1468                                                                 name, item->unread_msgs, item->total_msgs,
1469                                                                 (add_unread_mark || add_sub_match_mark) ? "+" : "",
1470                                                                 (item->unreadmarked_msgs > 0) ? "!" : "");
1471                                 }
1472                         }
1473                 }
1474                 if ((str == NULL) &&
1475                         (add_unread_mark || add_sub_match_mark || (item->unreadmarked_msgs > 0))) {
1476                         /* no unread/total numbers, but at least one sign */
1477                         str = g_strdup_printf("%s (%s%s)",
1478                                                 name,
1479                                                 (add_unread_mark || add_sub_match_mark) ? "+" : "",
1480                                                 (item->unreadmarked_msgs > 0) ? "!" : "");
1481                 }
1482         }
1483         if (str == NULL) {
1484                 /* last fallback, folder name only or with +! sign */
1485                 if (item->unreadmarked_msgs > 0 && add_sub_match_mark) {
1486                         str = g_strdup_printf("%s%s",
1487                                                 name, " (+!)");
1488                 } else if (item->unreadmarked_msgs > 0) {
1489                         str = g_strdup_printf("%s%s",
1490                                                 name, " (!)");
1491                 } else if (add_sub_match_mark) {
1492                         str = g_strdup_printf("%s%s",
1493                                                 name, " (+)");
1494                 } else {
1495                         str = g_strdup_printf("%s", name);
1496                 }
1497         }
1498         gtk_cmctree_set_node_info(ctree, node, str, FOLDER_SPACING,
1499                                 xpm, openxpm,
1500                                 FALSE, GTK_CMCTREE_ROW(node)->expanded);
1501         g_free(str);
1502         g_free(name);
1503
1504         if (!folder_item_parent(item)) {
1505                 gtk_cmctree_node_set_text(ctree, node, col_pos[F_COL_NEW],    "-");
1506                 gtk_cmctree_node_set_text(ctree, node, col_pos[F_COL_UNREAD], "-");
1507                 gtk_cmctree_node_set_text(ctree, node, col_pos[F_COL_TOTAL],  "-");
1508         } else {
1509                 gtk_cmctree_node_set_text(ctree, node, col_pos[F_COL_NEW],    item->new_msgs    > 0 ? itos(item->new_msgs)    : prefs_common.zero_replacement);
1510                 gtk_cmctree_node_set_text(ctree, node, col_pos[F_COL_UNREAD], item->unread_msgs > 0 ? itos(item->unread_msgs) : prefs_common.zero_replacement);
1511                 gtk_cmctree_node_set_text(ctree, node, col_pos[F_COL_TOTAL],  item->total_msgs  > 0 ? itos(item->total_msgs)  : prefs_common.zero_replacement);
1512         }
1513
1514         if (folder_has_parent_of_type(item, F_OUTBOX) ||
1515             folder_has_parent_of_type(item, F_TRASH)) {
1516                 use_bold = use_color = FALSE;
1517         } else if (folder_has_parent_of_type(item, F_QUEUE)) {
1518                 GSList *list = folder_item_get_msg_list(item);
1519                 GSList *cur;
1520                 use_bold = use_color = FALSE;
1521                 for (cur = list; cur; cur = cur->next) {
1522                         MsgInfo *msginfo = (MsgInfo *)cur->data;
1523                         if (!MSG_IS_DELETED(msginfo->flags)) {
1524                                 /* highlight queue folder if there are any messages */
1525                                 use_bold = use_color = TRUE;
1526                                 break;
1527                         }
1528                 }
1529                 procmsg_msg_list_free(list);
1530         } else {
1531                 /* if unread messages exist, print with bold font */
1532                 use_bold = (item->unread_msgs > 0|| item->new_msgs > 0)
1533                                 || add_unread_mark;
1534                 /* if new messages exist, print with colored letter */
1535                 use_color =
1536                         (item->new_msgs > 0) ||
1537                         (add_unread_mark &&
1538                          folderview_have_new_children(folderview, item));
1539         }
1540
1541         gtk_cmctree_node_set_foreground(ctree, node, NULL);
1542
1543         if (use_bold) {
1544                 GdkColor gdk_color;
1545
1546                 if (item->prefs->color > 0 && !use_color) {
1547                         gtkut_convert_int_to_gdk_color(item->prefs->color, &gdk_color);
1548                         color_style = gtk_style_copy(bold_style);
1549                         color_style->fg[GTK_STATE_NORMAL] = gdk_color;
1550                         style = color_style;
1551                 } else if (use_color) {
1552                         style = bold_color_style;
1553                 } else
1554                         style = bold_style;
1555                 if (item->op_count > 0) {
1556                         style = bold_tgtfold_style;
1557                 }
1558         } else if (use_color) {
1559                 style = normal_color_style;
1560                 gtk_cmctree_node_set_foreground(ctree, node,
1561                                               &folderview->color_new);
1562         } else if (item->op_count > 0) {
1563                 style = bold_tgtfold_style;
1564         } else if (item->prefs->color > 0) {
1565                 GdkColor gdk_color;
1566                 gtkut_convert_int_to_gdk_color(item->prefs->color, &gdk_color);
1567                 color_style = gtk_style_copy(normal_style);
1568                 color_style->fg[GTK_STATE_NORMAL] = gdk_color;
1569                 style = color_style;
1570         } else {
1571                 style = normal_style;
1572         }
1573
1574         gtk_cmctree_node_set_row_style(ctree, node, style);
1575
1576         if ((node = gtkut_ctree_find_collapsed_parent(ctree, node)) != NULL)
1577                 folderview_update_node(folderview, node);
1578 }
1579
1580 void folderview_update_search_icon(FolderItem *item, gboolean matches)
1581 {
1582         GList *list;
1583         FolderView *folderview;
1584         GtkCMCTree *ctree;
1585         GtkCMCTreeNode *node;
1586
1587         cm_return_if_fail(item != NULL);
1588
1589         for (list = folderview_list; list != NULL; list = list->next) {
1590                 folderview = (FolderView *)list->data;
1591                 ctree = GTK_CMCTREE(folderview->ctree);
1592
1593                 node = gtk_cmctree_find_by_row_data(ctree, NULL, item);
1594                 if (node && item->search_match != matches) {
1595                         item->search_match = matches;
1596                         folderview_update_node(folderview, node);
1597                 }
1598         }
1599 }
1600
1601 static gboolean folderview_update_item_claws(gpointer source, gpointer data)
1602 {
1603         FolderItemUpdateData *update_info = (FolderItemUpdateData *)source;
1604         FolderView *folderview = (FolderView *)data;
1605         GtkCMCTree *ctree;
1606         GtkCMCTreeNode *node;
1607         cm_return_val_if_fail(update_info != NULL, TRUE);
1608         cm_return_val_if_fail(update_info->item != NULL, TRUE);
1609         cm_return_val_if_fail(folderview != NULL, FALSE);
1610
1611         ctree = GTK_CMCTREE(folderview->ctree);
1612
1613         node = gtk_cmctree_find_by_row_data(ctree, NULL, update_info->item);
1614
1615         if (node) {
1616                 if (update_info->update_flags & (F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_NAME))
1617                         folderview_update_node(folderview, node);
1618
1619                 if ((update_info->update_flags & F_ITEM_UPDATE_CONTENT) &&
1620                      update_info->item == folderview->summaryview->folder_item &&
1621                      update_info->item != NULL)
1622                         if (!quicksearch_has_sat_predicate(folderview->summaryview->quicksearch))
1623                                 summary_show(folderview->summaryview, update_info->item);
1624         }
1625
1626         return FALSE;
1627 }
1628
1629 static gboolean folderview_gnode_func(GtkCMCTree *ctree, guint depth,
1630                                       GNode *gnode, GtkCMCTreeNode *cnode,
1631                                       gpointer data)
1632 {
1633         FolderView *folderview = (FolderView *)data;
1634         FolderItem *item = FOLDER_ITEM(gnode->data);
1635
1636         cm_return_val_if_fail(item != NULL, FALSE);
1637
1638         gtk_cmctree_node_set_row_data(ctree, cnode, item);
1639         folderview_update_node(folderview, cnode);
1640
1641         return TRUE;
1642 }
1643
1644 static void folderview_expand_func(GtkCMCTree *ctree, GtkCMCTreeNode *node,
1645                                    gpointer data)
1646 {
1647         FolderView *folderview = (FolderView *)data;
1648         FolderItem *item;
1649
1650         if (GTK_CMCTREE_ROW(node)->children) {
1651                 item = gtk_cmctree_node_get_row_data(ctree, node);
1652                 cm_return_if_fail(item != NULL);
1653
1654                 if (!item->collapsed)
1655                         gtk_cmctree_expand(ctree, node);
1656                 else
1657                         folderview_update_node(folderview, node);
1658         }
1659 }
1660
1661 static void set_special_folder(GtkCMCTree *ctree, FolderItem *item,
1662                                GtkCMCTreeNode *root, GtkCMCTreeNode **prev)
1663 {
1664         if (item) {
1665                 GtkCMCTreeNode *node, *parent, *sibling;
1666
1667                 node = gtk_cmctree_find_by_row_data(ctree, root, item);
1668                 if (!node)
1669                         g_warning("%s not found.\n", item->path);
1670                 else {
1671                         parent = GTK_CMCTREE_ROW(node)->parent;
1672                         if (*prev && parent == GTK_CMCTREE_ROW(*prev)->parent)
1673                                 sibling = GTK_CMCTREE_ROW(*prev)->sibling;
1674                         else
1675                                 sibling = GTK_CMCTREE_ROW(parent)->children;
1676                         while (sibling) {
1677                                 FolderItem *tmp;
1678
1679                                 tmp = gtk_cmctree_node_get_row_data
1680                                         (ctree, sibling);
1681                                 if (tmp->stype != F_NORMAL)
1682                                         sibling = GTK_CMCTREE_ROW(sibling)->sibling;
1683                                 else
1684                                         break;
1685                         }
1686                         if (node != sibling)
1687                                 gtk_cmctree_move(ctree, node, parent, sibling);
1688                 }
1689
1690                 *prev = node;
1691         }
1692 }
1693
1694 static void folderview_sort_folders(FolderView *folderview, GtkCMCTreeNode *root,
1695                                     Folder *folder)
1696 {
1697         GtkCMCTree *ctree = GTK_CMCTREE(folderview->ctree);
1698         GtkCMCTreeNode *prev = NULL;
1699
1700         gtk_cmclist_freeze(GTK_CMCLIST(ctree));
1701         gtk_sctree_sort_recursive(ctree, root);
1702         if (root && GTK_CMCTREE_ROW(root)->parent) {
1703                 gtk_cmclist_thaw(GTK_CMCLIST(ctree));
1704                 return;
1705         }
1706         set_special_folder(ctree, folder->inbox, root, &prev);
1707         set_special_folder(ctree, folder->outbox, root, &prev);
1708         set_special_folder(ctree, folder->draft, root, &prev);
1709         set_special_folder(ctree, folder->queue, root, &prev);
1710         set_special_folder(ctree, folder->trash, root, &prev);
1711         gtk_cmclist_thaw(GTK_CMCLIST(ctree));
1712 }
1713
1714 static void folderview_append_folder(FolderView *folderview, Folder *folder)
1715 {
1716         GtkCMCTree *ctree = GTK_CMCTREE(folderview->ctree);
1717         GtkCMCTreeNode *root;
1718
1719         cm_return_if_fail(folder != NULL);
1720
1721         root = gtk_sctree_insert_gnode(ctree, NULL, NULL, folder->node,
1722                                       folderview_gnode_func, folderview);
1723         gtk_cmctree_pre_recursive(ctree, root, folderview_expand_func,
1724                                 folderview);
1725         folderview_sort_folders(folderview, root, folder);
1726 }
1727
1728 /* callback functions */
1729 static void folderview_set_sens_and_popup_menu(FolderView *folderview, gint row,
1730                                 GdkEventButton *event)
1731 {
1732         FolderItem *item;
1733         Folder *folder;
1734         FolderViewPopup *fpopup;
1735         GtkActionGroup *action_group;
1736         GtkWidget *popup;
1737         FolderItem *special_trash = NULL, *special_queue = NULL;
1738         PrefsAccount *ac;
1739         GtkUIManager *ui_manager = gtk_ui_manager_new();
1740
1741         if (folderview->ui_manager)
1742                 g_object_unref(folderview->ui_manager);
1743
1744         folderview->ui_manager = ui_manager;
1745         item = folderview_get_selected_item(folderview);
1746
1747         cm_return_if_fail(item != NULL);
1748         cm_return_if_fail(item->folder != NULL);
1749         folder = item->folder;
1750
1751         fpopup = g_hash_table_lookup(folderview_popups, folder->klass->idstr);
1752
1753         if (fpopup != NULL)
1754                 action_group = g_hash_table_lookup(folderview->popups, folder->klass->idstr);
1755         else {
1756                 fpopup = g_hash_table_lookup(folderview_popups, "common");
1757                 action_group = g_hash_table_lookup(folderview->popups, "common");
1758         }
1759
1760         gtk_ui_manager_insert_action_group(ui_manager, action_group, 0);
1761         MENUITEM_ADDUI_MANAGER(ui_manager, "/", "Popup", "Popup", GTK_UI_MANAGER_MENUBAR)
1762         MENUITEM_ADDUI_MANAGER(ui_manager, "/Popup", "FolderViewPopup", "FolderViewPopup", GTK_UI_MANAGER_MENU)
1763
1764         if (fpopup->add_menuitems)
1765                 fpopup->add_menuitems(ui_manager, item);
1766
1767         MENUITEM_ADDUI_MANAGER(ui_manager, "/Popup/FolderViewPopup", "MarkAllRead", "FolderViewPopup/MarkAllRead", GTK_UI_MANAGER_MENUITEM)
1768         MENUITEM_ADDUI_MANAGER(ui_manager, "/Popup/FolderViewPopup", "Separator1", "FolderViewPopup/---", GTK_UI_MANAGER_SEPARATOR)
1769         MENUITEM_ADDUI_MANAGER(ui_manager, "/Popup/FolderViewPopup", "RunProcessing", "FolderViewPopup/RunProcessing", GTK_UI_MANAGER_MENUITEM)
1770         MENUITEM_ADDUI_MANAGER(ui_manager, "/Popup/FolderViewPopup", "SearchFolder", "FolderViewPopup/SearchFolder", GTK_UI_MANAGER_MENUITEM)
1771         MENUITEM_ADDUI_MANAGER(ui_manager, "/Popup/FolderViewPopup", "Properties", "FolderViewPopup/Properties", GTK_UI_MANAGER_MENUITEM)
1772         MENUITEM_ADDUI_MANAGER(ui_manager, "/Popup/FolderViewPopup", "Processing", "FolderViewPopup/Processing", GTK_UI_MANAGER_MENUITEM)
1773
1774         if (fpopup->set_sensitivity != NULL)
1775                 fpopup->set_sensitivity(ui_manager, item);
1776
1777         if (NULL != (ac = account_find_from_item(item))) {
1778                 special_trash = account_get_special_folder(ac, F_TRASH);
1779                 special_queue = account_get_special_folder(ac, F_QUEUE);
1780         }
1781
1782         if ((item == folder->trash || item == special_trash
1783              || folder_has_parent_of_type(item, F_TRASH))) {
1784                 MENUITEM_ADDUI_MANAGER(ui_manager, "/Popup/FolderViewPopup", "SeparatorTrash", "FolderViewPopup/---", GTK_UI_MANAGER_SEPARATOR)
1785                 MENUITEM_ADDUI_MANAGER(ui_manager, "/Popup/FolderViewPopup", "EmptyTrash", "FolderViewPopup/EmptyTrash", GTK_UI_MANAGER_MENUITEM)
1786         }
1787
1788         if ((item == folder->queue || item == special_queue
1789              || folder_has_parent_of_type(item, F_QUEUE))) {
1790                 MENUITEM_ADDUI_MANAGER(ui_manager, "/Popup/FolderViewPopup", "SeparatorQueue", "FolderViewPopup/---", GTK_UI_MANAGER_SEPARATOR)
1791                 MENUITEM_ADDUI_MANAGER(ui_manager, "/Popup/FolderViewPopup", "SendQueue", "FolderViewPopup/SendQueue", GTK_UI_MANAGER_MENUITEM)
1792         }
1793
1794 #define SET_SENS(name, sens) \
1795         cm_menu_set_sensitive_full(ui_manager, "Popup/"name, sens)
1796
1797         SET_SENS("FolderViewPopup/MarkAllRead", item->unread_msgs >= 1);
1798         SET_SENS("FolderViewPopup/SearchFolder", item->total_msgs >= 1 &&
1799                  folderview->selected == folderview->opened);
1800         SET_SENS("FolderViewPopup/Properties", TRUE);
1801
1802         SET_SENS("FolderViewPopup/RunProcessing", item->prefs->processing &&
1803                  item->total_msgs >= 1 && !item->processing_pending);
1804         SET_SENS("FolderViewPopup/Processing", item->node->parent != NULL &&
1805                 !item->no_select && !item->processing_pending);
1806
1807         if (item == folder->trash || item == special_trash
1808             || folder_has_parent_of_type(item, F_TRASH)) {
1809                 GSList *msglist = folder_item_get_msg_list(item);
1810                 SET_SENS("FolderViewPopup/EmptyTrash", msglist != NULL);
1811                 procmsg_msg_list_free(msglist);
1812         }
1813         if (item == folder->queue || item == special_queue
1814             || folder_has_parent_of_type(item, F_QUEUE)) {
1815                 GSList *msglist = folder_item_get_msg_list(item);
1816                 SET_SENS("FolderViewPopup/SendQueue", msglist != NULL);
1817                 procmsg_msg_list_free(msglist);
1818         }
1819 #undef SET_SENS
1820
1821         popup = gtk_menu_item_get_submenu(GTK_MENU_ITEM(
1822                         gtk_ui_manager_get_widget(ui_manager, "/Popup/FolderViewPopup")) );
1823         g_signal_connect(G_OBJECT(popup), "selection_done",
1824                          G_CALLBACK(folderview_popup_close),
1825                          folderview);
1826         gtk_menu_popup(GTK_MENU(popup), NULL, NULL, NULL, NULL,
1827                        event->button, event->time);
1828 }
1829
1830 static gboolean folderview_button_pressed(GtkWidget *ctree, GdkEventButton *event,
1831                                           FolderView *folderview)
1832 {
1833         GtkCMCList *clist = GTK_CMCLIST(ctree);
1834         gint prev_row = -1, row = -1, column = -1;
1835
1836         if (!event) return FALSE;
1837
1838         if (event->button == 1 || event->button == 2) {
1839                 if (!gtk_sctree_is_hot_spot (GTK_SCTREE(clist), event->x, event->y))
1840                         folderview->open_folder = TRUE;
1841
1842                 if (event->type == GDK_2BUTTON_PRESS) {
1843                         if (clist->selection) {
1844                                 GtkCMCTreeNode *node;
1845
1846                                 node = GTK_CMCTREE_NODE(clist->selection->data);
1847                                 if (node) {
1848                                         gtk_cmctree_toggle_expansion(
1849                                                 GTK_CMCTREE(ctree),
1850                                                 node);
1851                                         folderview->open_folder = FALSE;
1852                                 }
1853                         }
1854                 }
1855                 return FALSE;
1856         }
1857
1858         if (event->button == 2 || event->button == 3) {
1859                 /* right clicked */
1860                 if (clist->selection) {
1861                         GtkCMCTreeNode *node;
1862
1863                         node = GTK_CMCTREE_NODE(clist->selection->data);
1864                         if (node)
1865                                 prev_row = gtkut_ctree_get_nth_from_node
1866                                         (GTK_CMCTREE(ctree), node);
1867                 }
1868
1869                 if (!gtk_cmclist_get_selection_info(clist, event->x, event->y,
1870                                                   &row, &column))
1871                         return FALSE;
1872                 if (prev_row != row) {
1873                         gtk_cmclist_unselect_all(clist);
1874                         if (event->button == 2)
1875                                 folderview_select_node
1876                                         (folderview,
1877                                          gtk_cmctree_node_nth(GTK_CMCTREE(ctree),
1878                                                             row));
1879                         else
1880                                 gtk_cmclist_select_row(clist, row, column);
1881                 }
1882         }
1883
1884         if (event->button != 3) return FALSE;
1885
1886         folderview_set_sens_and_popup_menu(folderview, row, event);
1887         return FALSE;
1888 }
1889
1890 static gboolean folderview_button_released(GtkWidget *ctree, GdkEventButton *event,
1891                                            FolderView *folderview)
1892 {
1893         int row = -1, column = -1;
1894
1895         if (!event) return FALSE;
1896
1897         if (!gtk_cmclist_get_selection_info(GTK_CMCLIST(ctree), event->x, event->y,
1898                                           &row, &column))
1899                 return FALSE;
1900         if (event->button == 1 && folderview->open_folder == FALSE &&
1901             folderview->opened != NULL) {
1902                 gtkut_ctree_set_focus_row(GTK_CMCTREE(ctree),
1903                                           folderview->opened);
1904                 gtk_cmctree_select(GTK_CMCTREE(ctree), folderview->opened);
1905         }
1906
1907         return FALSE;
1908 }
1909
1910 #define BREAK_ON_MODIFIER_KEY() \
1911         if ((event->state & (GDK_MOD1_MASK|GDK_CONTROL_MASK)) != 0) break
1912
1913 static gboolean folderview_key_pressed(GtkWidget *widget, GdkEventKey *event,
1914                                        FolderView *folderview)
1915 {
1916         if (!event) return FALSE;
1917
1918         if (quicksearch_has_focus(folderview->summaryview->quicksearch))
1919                 return FALSE;
1920
1921         switch (event->keyval) {
1922         case GDK_KEY_Right:
1923 #ifndef GENERIC_UMPC
1924         case GDK_KEY_Return:
1925         case GDK_KEY_KP_Enter:
1926 #endif
1927                 if (folderview->selected) {
1928                         folderview_select_node(folderview,
1929                                                folderview->selected);
1930                 }
1931                 break;
1932 #ifdef GENERIC_UMPC
1933         case GDK_KEY_Return:
1934                 if (folderview->selected && GTK_CMCTREE_ROW(folderview->selected)->children) {
1935                         gtk_cmctree_toggle_expansion(
1936                                 GTK_CMCTREE(folderview->ctree),
1937                                 folderview->selected);
1938                 }
1939                 break;
1940 #endif
1941         case GDK_KEY_space:
1942                 BREAK_ON_MODIFIER_KEY();
1943                 if (folderview->selected) {
1944                         if (folderview->opened == folderview->selected &&
1945                             (!folderview->summaryview->folder_item ||
1946                              folderview->summaryview->folder_item->total_msgs == 0))
1947                                 folderview_select_next_with_flag(folderview, MSG_UNREAD, TRUE);
1948                         else
1949                                 folderview_select_node(folderview,
1950                                                        folderview->selected);
1951                 }
1952                 break;
1953         default:
1954                 break;
1955         }
1956
1957         return FALSE;
1958 }
1959
1960 typedef struct _PostponedSelectData
1961 {
1962         GtkCMCTree *ctree;
1963         GtkCMCTreeNode *row;
1964         gint column;
1965         FolderView *folderview;
1966 } PostponedSelectData;
1967
1968 static gboolean postpone_select(void *data)
1969 {
1970         PostponedSelectData *psdata = (PostponedSelectData *)data;
1971         debug_print("trying again\n");
1972
1973         psdata->folderview->postpone_select_id = 0;
1974         psdata->folderview->open_folder = TRUE;
1975         main_window_cursor_normal(psdata->folderview->mainwin);
1976         STATUSBAR_POP(psdata->folderview->mainwin);
1977         folderview_selected(psdata->ctree, psdata->row,
1978                             psdata->column, psdata->folderview);
1979         g_free(psdata);
1980         return FALSE;
1981 }
1982
1983 void folderview_close_opened(FolderView *folderview)
1984 {
1985         if (folderview->opened) {
1986                 FolderItem *olditem;
1987
1988                 olditem = gtk_cmctree_node_get_row_data(GTK_CMCTREE(folderview->ctree),
1989                                                       folderview->opened);
1990                 if (olditem) {
1991                         gchar *buf = g_strdup_printf(_("Closing folder %s..."),
1992                                 olditem->path ? olditem->path:olditem->name);
1993                         /* will be null if we just moved the previously opened folder */
1994                         STATUSBAR_PUSH(folderview->mainwin, buf);
1995                         main_window_cursor_wait(folderview->mainwin);
1996                         g_free(buf);
1997                         summary_save_prefs_to_folderitem(folderview->summaryview, olditem);
1998                         summary_show(folderview->summaryview, NULL);
1999                         folder_item_close(olditem);
2000                         main_window_cursor_normal(folderview->mainwin);
2001                         STATUSBAR_POP(folderview->mainwin);
2002                         if (olditem->folder->klass->item_closed)
2003                                 olditem->folder->klass->item_closed(olditem);
2004
2005                 }
2006         }
2007
2008         if (folderview->opened &&
2009             !GTK_CMCTREE_ROW(folderview->opened)->children)
2010                 gtk_cmctree_collapse(GTK_CMCTREE(folderview->ctree), folderview->opened);
2011
2012         folderview->opened = NULL;
2013 }
2014 static void folderview_selected(GtkCMCTree *ctree, GtkCMCTreeNode *row,
2015                                 gint column, FolderView *folderview)
2016 {
2017         static gboolean can_select = TRUE;      /* exclusive lock */
2018         gboolean opened;
2019         FolderItem *item;
2020         gchar *buf;
2021         int res = 0;
2022         GtkCMCTreeNode *old_opened = folderview->opened;
2023         START_TIMING("");
2024         folderview->selected = row;
2025
2026         debug_print("newly selected %p, opened %p\n", folderview->selected,
2027                         folderview->opened);
2028         if (folderview->opened == row) {
2029                 folderview->open_folder = FALSE;
2030                 END_TIMING();
2031                 return;
2032         }
2033
2034         item = gtk_cmctree_node_get_row_data(ctree, row);
2035         if (!item) {
2036                 END_TIMING();
2037                 folderview->open_folder = FALSE;
2038                 return;
2039         }
2040
2041         if (!can_select || summary_is_locked(folderview->summaryview)) {
2042                 if (folderview->opened) {
2043                         gtkut_ctree_set_focus_row(ctree, folderview->opened);
2044                         gtk_cmctree_select(ctree, folderview->opened);
2045                 }
2046                 folderview->open_folder = FALSE;
2047                 END_TIMING();
2048                 return;
2049         }
2050
2051         if (!folderview->open_folder) {
2052                 END_TIMING();
2053                 return;
2054         }
2055
2056         can_select = FALSE;
2057
2058         /* Save cache for old folder */
2059         /* We don't want to lose all caches if sylpheed crashed */
2060         /* resets folderview->opened to NULL */
2061         folderview_close_opened(folderview);
2062
2063         /* CLAWS: set compose button type: news folder items
2064          * always have a news folder as parent */
2065         if (item->folder)
2066                 toolbar_set_compose_button
2067                         (folderview->mainwin->toolbar,
2068                          FOLDER_TYPE(item->folder) == F_NEWS ?
2069                          COMPOSEBUTTON_NEWS : COMPOSEBUTTON_MAIL);
2070
2071         if (item->path)
2072                 debug_print("Folder %s is selected\n", item->path);
2073
2074         if (!GTK_CMCTREE_ROW(row)->children)
2075                 gtk_cmctree_expand(ctree, row);
2076
2077         /* ungrab the mouse event */
2078         if (gtk_widget_has_grab(GTK_WIDGET(ctree))) {
2079                 gtk_grab_remove(GTK_WIDGET(ctree));
2080                 if (gdk_pointer_is_grabbed())
2081                         gdk_pointer_ungrab(GDK_CURRENT_TIME);
2082         }
2083
2084         /* Open Folder */
2085         /* TODO: wwp: avoid displaying (null) in the status bar */
2086         buf = g_strdup_printf(_("Opening folder %s..."), item->path ?
2087                                         item->path : "(null)");
2088         debug_print("%s\n", buf);
2089         STATUSBAR_PUSH(folderview->mainwin, buf);
2090         g_free(buf);
2091
2092         main_window_cursor_wait(folderview->mainwin);
2093
2094         if (folderview->scanning_folder == item->folder) {
2095                 res = -2;
2096         } else {
2097                 res = folder_item_open(item);
2098         }
2099
2100         if (res == -1 && item->no_select == FALSE) {
2101                 main_window_cursor_normal(folderview->mainwin);
2102                 STATUSBAR_POP(folderview->mainwin);
2103
2104                 alertpanel_error(_("Folder could not be opened."));
2105
2106                 folderview->open_folder = FALSE;
2107                 can_select = TRUE;
2108                 END_TIMING();
2109                 return;
2110         } else if (res == -2 && item->no_select == FALSE) {
2111                 PostponedSelectData *data = g_new0(PostponedSelectData, 1);
2112                 data->ctree = ctree;
2113                 data->row = row;
2114                 data->column = column;
2115                 data->folderview = folderview;
2116                 debug_print("postponing open of %s till end of scan\n",
2117                         item->path ? item->path:item->name);
2118                 folderview->open_folder = FALSE;
2119                 can_select = TRUE;
2120                 if (folderview->postpone_select_id != 0)
2121                         g_source_remove(folderview->postpone_select_id);
2122                 folderview->postpone_select_id = g_timeout_add(500, postpone_select, data);
2123                 END_TIMING();
2124                 return;
2125         }
2126
2127         main_window_cursor_normal(folderview->mainwin);
2128
2129         /* Show messages */
2130         summary_set_prefs_from_folderitem(folderview->summaryview, item);
2131         opened = summary_show(folderview->summaryview, item);
2132
2133         folder_clean_cache_memory(item);
2134
2135         if (!opened) {
2136                 gtkut_ctree_set_focus_row(ctree, old_opened);
2137                 gtk_cmctree_select(ctree, old_opened);
2138                 folderview->opened = old_opened;
2139         } else {
2140                 folderview->opened = row;
2141                 if (gtk_cmctree_node_is_visible(ctree, row)
2142                     != GTK_VISIBILITY_FULL)
2143                         gtk_cmctree_node_moveto(ctree, row, -1, 0.5, 0);
2144         }
2145
2146         STATUSBAR_POP(folderview->mainwin);
2147
2148         folderview->open_folder = FALSE;
2149         can_select = TRUE;
2150         END_TIMING();
2151 }
2152
2153 static void folderview_tree_expanded(GtkCMCTree *ctree, GtkCMCTreeNode *node,
2154                                      FolderView *folderview)
2155 {
2156         FolderItem *item;
2157
2158         item = gtk_cmctree_node_get_row_data(ctree, node);
2159         cm_return_if_fail(item != NULL);
2160         item->collapsed = FALSE;
2161         folderview_update_node(folderview, node);
2162 }
2163
2164 static void folderview_tree_collapsed(GtkCMCTree *ctree, GtkCMCTreeNode *node,
2165                                       FolderView *folderview)
2166 {
2167         FolderItem *item;
2168
2169         item = gtk_cmctree_node_get_row_data(ctree, node);
2170         cm_return_if_fail(item != NULL);
2171         item->collapsed = TRUE;
2172         folderview_update_node(folderview, node);
2173 }
2174
2175 static void folderview_popup_close(GtkMenuShell *menu_shell,
2176                                    FolderView *folderview)
2177 {
2178         if (!folderview->opened) return;
2179
2180         gtk_cmctree_select(GTK_CMCTREE(folderview->ctree), folderview->opened);
2181 }
2182
2183 static void folderview_col_resized(GtkCMCList *clist, gint column, gint width,
2184                                    FolderView *folderview)
2185 {
2186         FolderColumnType type = folderview->col_state[column].type;
2187
2188         prefs_common.folder_col_size[type] = width;
2189 }
2190
2191 static void folderview_create_folder_node(FolderView *folderview, FolderItem *item)
2192 {
2193         GtkCMCTree *ctree = GTK_CMCTREE(folderview->ctree);
2194         gchar *text[N_FOLDER_COLS] = {NULL, "0", "0", "0"};
2195         GtkCMCTreeNode *node, *parent_node;
2196         gint *col_pos = folderview->col_pos;
2197         FolderItemUpdateData hookdata;
2198
2199         parent_node = gtk_cmctree_find_by_row_data(ctree, NULL, folder_item_parent(item));
2200         if (parent_node == NULL)
2201                 return;
2202
2203         gtk_cmclist_freeze(GTK_CMCLIST(ctree));
2204
2205         text[col_pos[F_COL_FOLDER]] = item->name;
2206         node = gtk_sctree_insert_node(ctree, parent_node, NULL, text,
2207                                      FOLDER_SPACING,
2208                                      folderxpm,
2209                                      folderopenxpm,
2210                                      FALSE, FALSE);
2211         gtk_cmctree_expand(ctree, parent_node);
2212         gtk_cmctree_node_set_row_data(ctree, node, item);
2213         if (normal_style)
2214                 gtk_cmctree_node_set_row_style(ctree, node, normal_style);
2215         folderview_sort_folders(folderview, parent_node, item->folder);
2216
2217         hookdata.item = item;
2218         hookdata.update_flags = F_ITEM_UPDATE_NAME;
2219         hookdata.msg = NULL;
2220         hooks_invoke(FOLDER_ITEM_UPDATE_HOOKLIST, &hookdata);
2221
2222         gtk_cmclist_thaw(GTK_CMCLIST(ctree));
2223 }
2224
2225 static void folderview_empty_trash_cb(GtkAction *action, gpointer data)
2226 {
2227         FolderView *folderview = (FolderView *)data;
2228         GtkCMCTree *ctree = GTK_CMCTREE(folderview->ctree);
2229         FolderItem *item;
2230         GSList *mlist = NULL;
2231         GSList *cur = NULL;
2232         FolderItem *special_trash = NULL;
2233         PrefsAccount *ac;
2234
2235         if (!folderview->selected) return;
2236         item = gtk_cmctree_node_get_row_data(ctree, folderview->selected);
2237         cm_return_if_fail(item != NULL);
2238         cm_return_if_fail(item->folder != NULL);
2239
2240         if (NULL != (ac = account_find_from_item(item)))
2241                 special_trash = account_get_special_folder(ac, F_TRASH);
2242
2243         if (item != item->folder->trash && item != special_trash
2244         &&  !folder_has_parent_of_type(item, F_TRASH)) return;
2245
2246         if (prefs_common.ask_on_clean) {
2247                 if (alertpanel(_("Empty trash"),
2248                                _("Delete all messages in trash?"),
2249                                GTK_STOCK_CANCEL, _("+_Empty trash"), NULL) != G_ALERTALTERNATE)
2250                         return;
2251         }
2252
2253         mlist = folder_item_get_msg_list(item);
2254
2255         for (cur = mlist ; cur != NULL ; cur = cur->next) {
2256                 MsgInfo * msginfo = (MsgInfo *) cur->data;
2257                 if (MSG_IS_LOCKED(msginfo->flags))
2258                         continue;
2259                 /* is it partially received? (partial_recv isn't cached) */
2260                 if (msginfo->total_size != 0 &&
2261                     msginfo->size != (off_t)msginfo->total_size)
2262                         partial_mark_for_delete(msginfo);
2263         }
2264         procmsg_msg_list_free(mlist);
2265
2266         folder_item_remove_all_msg(item);
2267 }
2268
2269 static void folderview_send_queue_cb(GtkAction *action, gpointer data)
2270 {
2271         FolderView *folderview = (FolderView *)data;
2272         GtkCMCTree *ctree = GTK_CMCTREE(folderview->ctree);
2273         FolderItem *item;
2274         FolderItem *special_queue = NULL;
2275         PrefsAccount *ac;
2276         gchar *errstr = NULL;
2277
2278         if (!folderview->selected) return;
2279         item = gtk_cmctree_node_get_row_data(ctree, folderview->selected);
2280         cm_return_if_fail(item != NULL);
2281         cm_return_if_fail(item->folder != NULL);
2282
2283         if (NULL != (ac = account_find_from_item(item)))
2284                 special_queue = account_get_special_folder(ac, F_QUEUE);
2285
2286         if (item != item->folder->queue && item != special_queue
2287         &&  !folder_has_parent_of_type(item, F_QUEUE)) return;
2288
2289         if (procmsg_queue_is_empty(item))
2290                 return;
2291
2292         if (prefs_common.work_offline)
2293                 if (alertpanel(_("Offline warning"),
2294                                _("You're working offline. Override?"),
2295                                GTK_STOCK_NO, GTK_STOCK_YES,
2296                                NULL) != G_ALERTALTERNATE)
2297                 return;
2298
2299         /* ask for confirmation before sending queued messages only
2300            in online mode and if there is at least one message queued
2301            in any of the folder queue
2302         */
2303         if (prefs_common.confirm_send_queued_messages) {
2304                 if (!prefs_common.work_offline) {
2305                         if (alertpanel(_("Send queued messages"),
2306                                    _("Send all queued messages?"),
2307                                    GTK_STOCK_CANCEL, _("_Send"),
2308                                    NULL) != G_ALERTALTERNATE)
2309                                 return;
2310                 }
2311         }
2312
2313         if (procmsg_send_queue(item, prefs_common.savemsg, &errstr) < 0) {
2314                 if (!errstr)
2315                         alertpanel_error_log(_("Some errors occurred while "
2316                                            "sending queued messages."));
2317                 else {
2318                         alertpanel_error_log(_("Some errors occurred "
2319                                         "while sending queued messages:\n%s"), errstr);
2320                         g_free(errstr);
2321                 }
2322         }
2323 }
2324
2325 static void folderview_search_cb(GtkAction *action, gpointer data)
2326 {
2327         FolderView *folderview = (FolderView *)data;
2328         summary_search(folderview->summaryview);
2329 }
2330
2331 static void folderview_run_processing_cb(GtkAction *action, gpointer data)
2332 {
2333         FolderView *folderview = (FolderView *)data;
2334         GtkCMCTree *ctree = GTK_CMCTREE(folderview->ctree);
2335         FolderItem *item;
2336
2337         if (!folderview->selected) return;
2338
2339         item = gtk_cmctree_node_get_row_data(ctree, folderview->selected);
2340         cm_return_if_fail(item != NULL);
2341         cm_return_if_fail(item->folder != NULL);
2342
2343         item->processing_pending = TRUE;
2344         folder_item_apply_processing(item);
2345         item->processing_pending = FALSE;
2346 }
2347
2348 static void folderview_property_cb(GtkAction *action, gpointer data)
2349 {
2350         FolderView *folderview = (FolderView *)data;
2351         GtkCMCTree *ctree = GTK_CMCTREE(folderview->ctree);
2352         FolderItem *item;
2353
2354         if (!folderview->selected) return;
2355
2356         item = gtk_cmctree_node_get_row_data(ctree, folderview->selected);
2357         cm_return_if_fail(item != NULL);
2358         cm_return_if_fail(item->folder != NULL);
2359
2360         prefs_folder_item_open(item);
2361 }
2362
2363 static void folderview_recollapse_nodes(FolderView *folderview, GtkCMCTreeNode *node)
2364 {
2365         GSList *list = NULL;
2366         GSList *done = NULL;
2367         GtkCMCTree *ctree = GTK_CMCTREE(folderview->ctree);
2368
2369         for (list = folderview->nodes_to_recollapse; list != NULL; list = g_slist_next(list)) {
2370                 if (!gtkut_ctree_node_is_parent(GTK_CMCTREE_NODE(list->data), node)
2371                 &&  list->data != node) {
2372                         gtk_cmctree_collapse(ctree, GTK_CMCTREE_NODE(list->data));
2373                         done = g_slist_append(done, GTK_CMCTREE_NODE(list->data));
2374                 }
2375         }
2376         for (list = done; list != NULL; list = g_slist_next(list)) {
2377                 folderview->nodes_to_recollapse = g_slist_remove(folderview->nodes_to_recollapse,
2378                                                                  list->data);
2379         }
2380         g_slist_free(done);
2381 }
2382
2383 void folderview_move_folder(FolderView *folderview, FolderItem *from_folder,
2384                             FolderItem *to_folder, gboolean copy)
2385 {
2386         FolderItem *new_folder = NULL;
2387         gchar *buf;
2388         gint status;
2389
2390         cm_return_if_fail(folderview != NULL);
2391         cm_return_if_fail(from_folder != NULL);
2392         cm_return_if_fail(to_folder != NULL);
2393
2394         if (prefs_common.warn_dnd) {
2395                 buf = g_strdup_printf(copy ? _("Do you really want to copy folder '%s' in '%s'?"):
2396                                              _("Do you really want to make folder '%s' a subfolder of '%s'?"),
2397                                         from_folder->name, to_folder->name);
2398                 status = alertpanel_full(copy ? _("Copy folder"):_("Move folder"), buf,
2399                                          GTK_STOCK_NO, GTK_STOCK_YES, NULL, TRUE,
2400                                          NULL, ALERT_QUESTION, G_ALERTDEFAULT);
2401                 g_free(buf);
2402
2403                 if ((status & ~G_ALERTDISABLE) != G_ALERTALTERNATE)
2404                         return;
2405                 else if (status & G_ALERTDISABLE)
2406                         prefs_common.warn_dnd = FALSE;
2407         }
2408
2409         buf = g_strdup_printf(copy ? _("Copying %s to %s..."):_("Moving %s to %s..."),
2410                                 from_folder->name, to_folder->name);
2411         STATUSBAR_PUSH(folderview->mainwin, buf);
2412         g_free(buf);
2413         summary_clear_all(folderview->summaryview);
2414         folderview->opened = NULL;
2415         folderview->selected = NULL;
2416         gtk_widget_set_sensitive(GTK_WIDGET(folderview->ctree), FALSE);
2417         inc_lock();
2418         main_window_cursor_wait(folderview->mainwin);
2419
2420         statusbar_verbosity_set(FALSE);
2421         folder_item_update_freeze();
2422         if ((status = folder_item_move_to(from_folder, to_folder, &new_folder, copy)) == F_MOVE_OK) {
2423                 statusbar_verbosity_set(FALSE);
2424                 main_window_cursor_normal(folderview->mainwin);
2425                 STATUSBAR_POP(folderview->mainwin);
2426                 folder_item_update_thaw();
2427                 folder_item_update_recursive(new_folder, F_ITEM_UPDATE_MSGCNT);
2428
2429                 folderview_sort_folders(folderview,
2430                         gtk_cmctree_find_by_row_data(GTK_CMCTREE(folderview->ctree),
2431                                 NULL, to_folder), new_folder->folder);
2432                 folderview_select(folderview, new_folder);
2433         } else {
2434                 statusbar_verbosity_set(FALSE);
2435                 main_window_cursor_normal(folderview->mainwin);
2436                 STATUSBAR_POP(folderview->mainwin);
2437                 folder_item_update_thaw();
2438                 switch (status) {
2439                 case F_MOVE_FAILED_DEST_IS_PARENT:
2440                         alertpanel_error(_("Source and destination are the same."));
2441                         break;
2442                 case F_MOVE_FAILED_DEST_IS_CHILD:
2443                         alertpanel_error(copy ? _("Can't copy a folder to one of its children."):
2444                                                 _("Can't move a folder to one of its children."));
2445                         break;
2446                 case F_MOVE_FAILED_DEST_OUTSIDE_MAILBOX:
2447                         alertpanel_error(_("A folder cannot be moved between different mailboxes."));
2448                         break;
2449                 default:
2450                         alertpanel_error(copy ? _("Copy failed!"):_("Move failed!"));
2451                         break;
2452                 }
2453         }
2454         inc_unlock();
2455         gtk_widget_set_sensitive(GTK_WIDGET(folderview->ctree), TRUE);
2456 }
2457
2458 static gint folderview_clist_compare(GtkCMCList *clist,
2459                                      gconstpointer ptr1, gconstpointer ptr2)
2460 {
2461         FolderItem *item1 = ((GtkCMCListRow *)ptr1)->data;
2462         FolderItem *item2 = ((GtkCMCListRow *)ptr2)->data;
2463
2464         if (item1->order > 0 && item2->order > 0)  // if we have an order item, use it
2465         {
2466                 return item1->order - item2->order;
2467         }
2468
2469         // if only one folder has an order it comes first
2470         if (item1->order > 0)
2471         {
2472                 return -1;
2473         }
2474         if (item2->order > 0)
2475         {
2476                 return 1;
2477         }
2478
2479         if (!item1->name)
2480                 return (item2->name != NULL);
2481         if (!item2->name)
2482                 return -1;
2483
2484         return g_utf8_collate(item1->name, item2->name);
2485 }
2486
2487 static void folderview_processing_cb(GtkAction *action, gpointer data)
2488 {
2489         FolderView *folderview = (FolderView *)data;
2490         GtkCMCTree *ctree = GTK_CMCTREE(folderview->ctree);
2491         FolderItem *item;
2492         gchar *id, *title;
2493
2494         if (!folderview->selected) return;
2495
2496         item = gtk_cmctree_node_get_row_data(ctree, folderview->selected);
2497         cm_return_if_fail(item != NULL);
2498         cm_return_if_fail(item->folder != NULL);
2499
2500         id = folder_item_get_identifier(item);
2501         title = g_strdup_printf (_("Processing configuration for folder %s"), id);
2502         g_free (id);
2503
2504         prefs_filtering_open(&item->prefs->processing, title,
2505                         MANUAL_ANCHOR_PROCESSING, NULL, NULL, FALSE);
2506         g_free (title);
2507 }
2508
2509 void folderview_set_target_folder_color(gint color_op)
2510 {
2511         gint firstone = 1;
2512         GList *list;
2513         FolderView *folderview;
2514
2515         for (list = folderview_list; list != NULL; list = list->next) {
2516                 folderview = (FolderView *)list->data;
2517                 gtkut_convert_int_to_gdk_color(color_op, &folderview->color_op);
2518                 if (firstone) {
2519                         bold_tgtfold_style->fg[GTK_STATE_NORMAL] =
2520                                 folderview->color_op;
2521                         firstone = 0;
2522                 }
2523         }
2524 }
2525
2526 static gchar *last_smallfont = NULL;
2527 static gchar *last_normalfont = NULL;
2528 static gchar *last_boldfont = NULL;
2529 static gboolean last_derive = 0;
2530
2531 void folderview_reinit_fonts(FolderView *folderview)
2532 {
2533         /* force reinit */
2534         g_free(last_smallfont);
2535         last_smallfont = NULL;
2536         g_free(last_normalfont);
2537         last_normalfont = NULL;
2538         g_free(last_boldfont);
2539         last_boldfont = NULL;
2540 }
2541
2542 void folderview_reflect_prefs(void)
2543 {
2544         gboolean update_font = FALSE;
2545         FolderView *folderview = mainwindow_get_mainwindow()->folderview;
2546         FolderItem *item = folderview_get_selected_item(folderview);
2547         GtkAdjustment *pos = gtk_scrolled_window_get_vadjustment(
2548                                 GTK_SCROLLED_WINDOW(folderview->scrolledwin));
2549         gint height = gtk_adjustment_get_value(pos);
2550
2551         if (!last_smallfont || strcmp(last_smallfont, SMALL_FONT) ||
2552                         !last_normalfont || strcmp(last_normalfont, NORMAL_FONT) ||
2553                         !last_boldfont || strcmp(last_boldfont, BOLD_FONT) ||
2554                         last_derive != prefs_common.derive_from_normal_font)
2555                 update_font = TRUE;
2556
2557         g_free(last_smallfont);
2558         last_smallfont = g_strdup(SMALL_FONT);
2559         g_free(last_normalfont);
2560         last_normalfont = g_strdup(NORMAL_FONT);
2561         g_free(last_boldfont);
2562         last_boldfont = g_strdup(BOLD_FONT);
2563         last_derive = prefs_common.derive_from_normal_font;
2564
2565         if (update_font) {
2566                 normal_style = normal_color_style = bold_style =
2567                         bold_color_style = bold_tgtfold_style = NULL;
2568
2569                 folderview_init(folderview);
2570         }
2571         gtk_cmclist_freeze(GTK_CMCLIST(folderview->ctree));
2572         folderview_column_set_titles(folderview);
2573         folderview_set_all();
2574
2575         g_signal_handlers_block_by_func
2576                 (G_OBJECT(folderview->ctree),
2577                  G_CALLBACK(folderview_selected), folderview);
2578
2579         if (item) {
2580                 GtkCMCTreeNode *node = gtk_cmctree_find_by_row_data(
2581                         GTK_CMCTREE(folderview->ctree), NULL, item);
2582
2583                 folderview_select(folderview, item);
2584                 folderview->open_folder = FALSE;
2585                 folderview->selected = node;
2586         }
2587
2588         g_signal_handlers_unblock_by_func
2589                 (G_OBJECT(folderview->ctree),
2590                  G_CALLBACK(folderview_selected), folderview);
2591
2592         pos = gtk_scrolled_window_get_vadjustment(
2593                                 GTK_SCROLLED_WINDOW(folderview->scrolledwin));
2594         gtk_adjustment_set_value(pos, height);
2595         gtk_adjustment_changed(pos);
2596         gtk_cmclist_thaw(GTK_CMCLIST(folderview->ctree));
2597 }
2598
2599 static void drag_state_stop(FolderView *folderview)
2600 {
2601         if (folderview->drag_timer_id)
2602                 g_source_remove(folderview->drag_timer_id);
2603         folderview->drag_timer_id = 0;
2604         folderview->drag_node = NULL;
2605 }
2606
2607 static gboolean folderview_defer_expand(FolderView *folderview)
2608 {
2609         if (folderview->drag_node) {
2610                 folderview_recollapse_nodes(folderview, folderview->drag_node);
2611                 if (folderview->drag_item->collapsed) {
2612                         gtk_cmctree_expand(GTK_CMCTREE(folderview->ctree), folderview->drag_node);
2613                         folderview->nodes_to_recollapse = g_slist_append
2614                                 (folderview->nodes_to_recollapse, folderview->drag_node);
2615                 }
2616         }
2617         folderview->drag_item  = NULL;
2618         folderview->drag_timer_id = 0;
2619         return FALSE;
2620 }
2621
2622 static void drag_state_start(FolderView *folderview, GtkCMCTreeNode *node, FolderItem *item)
2623 {
2624         /* the idea is that we call drag_state_start() whenever we want expansion to
2625          * start after 'prefs_common.hover_time' msecs. if we want to cancel expansion,
2626          * we need to call drag_state_stop() */
2627         drag_state_stop(folderview);
2628         /* request expansion */
2629         if (0 != (folderview->drag_timer_id = g_timeout_add
2630                         (prefs_common.hover_timeout,
2631                          (GSourceFunc)folderview_defer_expand,
2632                          folderview))) {
2633                 folderview->drag_node = node;
2634                 folderview->drag_item = item;
2635         }
2636 }
2637 #ifndef GENERIC_UMPC
2638 static void folderview_start_drag(GtkWidget *widget, gint button, GdkEvent *event,
2639                                   FolderView       *folderview)
2640 {
2641         GdkDragContext *context;
2642
2643         cm_return_if_fail(folderview != NULL);
2644         if (folderview->selected == NULL) return;
2645         if (folderview->nodes_to_recollapse)
2646                 g_slist_free(folderview->nodes_to_recollapse);
2647         folderview->nodes_to_recollapse = NULL;
2648         context = gtk_drag_begin(widget, folderview->target_list,
2649                                  GDK_ACTION_MOVE|GDK_ACTION_COPY|GDK_ACTION_DEFAULT, button, event);
2650         gtk_drag_set_icon_default(context);
2651 }
2652 #endif
2653 static void folderview_drag_data_get(GtkWidget        *widget,
2654                                      GdkDragContext   *drag_context,
2655                                      GtkSelectionData *selection_data,
2656                                      guint             info,
2657                                      guint             time,
2658                                      FolderView       *folderview)
2659 {
2660         FolderItem *item;
2661         GList *cur;
2662         gchar *source = NULL;
2663         if (info == TARGET_DUMMY) {
2664                 for (cur = GTK_CMCLIST(folderview->ctree)->selection;
2665                      cur != NULL; cur = cur->next) {
2666                         item = gtk_cmctree_node_get_row_data
2667                                 (GTK_CMCTREE(folderview->ctree),
2668                                  GTK_CMCTREE_NODE(cur->data));
2669                         if (item) {
2670                                 source = g_strdup_printf ("FROM_OTHER_FOLDER%s", folder_item_get_identifier(item));
2671                                 gtk_selection_data_set(selection_data,
2672                                                        gtk_selection_data_get_target(selection_data), 8,
2673                                                        source, strlen(source));
2674                                 break;
2675                         } else
2676                                 return;
2677                 }
2678         } else {
2679                 g_warning("unknown info %d\n", info);
2680         }
2681 }
2682
2683 static gboolean folderview_update_folder(gpointer source, gpointer userdata)
2684 {
2685         FolderUpdateData *hookdata;
2686         FolderView *folderview;
2687         GtkWidget *ctree;
2688
2689         hookdata = source;
2690         folderview = (FolderView *) userdata;
2691         cm_return_val_if_fail(hookdata != NULL, FALSE);
2692         cm_return_val_if_fail(folderview != NULL, FALSE);
2693
2694         ctree = folderview->ctree;
2695         cm_return_val_if_fail(ctree != NULL, FALSE);
2696
2697         if (hookdata->update_flags & FOLDER_ADD_FOLDERITEM)
2698                 folderview_create_folder_node(folderview, hookdata->item);
2699         else if (hookdata->update_flags & FOLDER_RENAME_FOLDERITEM) {
2700                 GtkCMCTreeNode *node = gtk_cmctree_find_by_row_data(GTK_CMCTREE(ctree),
2701                                 NULL, folder_item_parent(hookdata->item));
2702                 folderview_sort_folders(folderview, node, hookdata->folder);
2703         } else if (hookdata->update_flags & FOLDER_REMOVE_FOLDERITEM) {
2704                 GtkCMCTreeNode *node;
2705
2706                 node = gtk_cmctree_find_by_row_data(GTK_CMCTREE(ctree), NULL, hookdata->item);
2707                 if (node != NULL) {
2708                         gtk_cmctree_remove_node(GTK_CMCTREE(ctree), node);
2709                         if (folderview->selected == node)
2710                                 folderview->selected = NULL;
2711                         if (folderview->opened == node)
2712                                 folderview->opened = NULL;
2713                 }
2714         } else if (hookdata->update_flags & (FOLDER_TREE_CHANGED | FOLDER_ADD_FOLDER | FOLDER_REMOVE_FOLDER))
2715                 folderview_set(folderview);
2716
2717         return FALSE;
2718 }
2719
2720 static gboolean folderview_dnd_scroll_cb(gpointer data)
2721 {
2722         FolderView *folderview = (FolderView *)data;
2723         GtkAdjustment *pos = gtk_scrolled_window_get_vadjustment(
2724                                 GTK_SCROLLED_WINDOW(folderview->scrolledwin));
2725         gint new_val = (int)gtk_adjustment_get_value(pos) + folderview->scroll_value;
2726         gint max = (int)gtk_adjustment_get_upper(pos) -
2727                (int)gtk_adjustment_get_page_size(pos);
2728
2729         if (folderview->scroll_value == 0) {
2730                 folderview->scroll_timeout_id = 0;
2731                 return FALSE;
2732         }
2733
2734         if (folderview->scroll_value > 0 && new_val > max) {
2735                 new_val = max;
2736         } else if (folderview->scroll_value < 0 && new_val < 0) {
2737                 new_val = 0;
2738         }
2739         gtk_adjustment_set_value(pos, new_val);
2740
2741         return TRUE;
2742 }
2743
2744 static gboolean folderview_drag_motion_cb(GtkWidget      *widget,
2745                                           GdkDragContext *context,
2746                                           gint            x,
2747                                           gint            y,
2748                                           guint           time,
2749                                           FolderView     *folderview)
2750 {
2751         gint row, column;
2752         FolderItem *item = NULL, *src_item = NULL;
2753         GtkCMCTreeNode *node = NULL;
2754         gboolean acceptable = FALSE;
2755         GtkAdjustment *pos = gtk_scrolled_window_get_vadjustment(
2756                                 GTK_SCROLLED_WINDOW(folderview->scrolledwin));
2757         int height = (int)gtk_adjustment_get_page_size(pos);
2758         int total_height = (int)gtk_adjustment_get_upper(pos);
2759         int vpos = (int)gtk_adjustment_get_value(pos);
2760         int offset = prefs_common.show_col_headers ? 24:0;
2761         int dist;
2762
2763         if (gtk_cmclist_get_selection_info
2764                 (GTK_CMCLIST(widget), x - offset, y - offset, &row, &column)) {
2765                 GtkWidget *srcwidget;
2766
2767                 if (y > height - (48 - offset) && height + vpos < total_height) {
2768                         dist = -(height - (48 - offset) - y);
2769                         folderview->scroll_value = 1.41f * (1+(dist / 6));
2770                 } else if (y < 72 - (24 - offset) && y >= 0) {
2771                         dist = 72 - (24 - offset) - y;
2772                         folderview->scroll_value = -1.41f * (1+(dist / 6));
2773                 } else {
2774                         folderview->scroll_value = 0;
2775                 }
2776                 if (folderview->scroll_value != 0 && folderview->scroll_timeout_id == 0) {
2777                         folderview->scroll_timeout_id =
2778                                 g_timeout_add(30, folderview_dnd_scroll_cb,
2779                                               folderview);
2780                 }
2781
2782                 node = gtk_cmctree_node_nth(GTK_CMCTREE(widget), row);
2783                 item = gtk_cmctree_node_get_row_data(GTK_CMCTREE(widget), node);
2784                 src_item = folderview->summaryview->folder_item;
2785
2786                 srcwidget = gtk_drag_get_source_widget(context);
2787                 if (srcwidget == summary_get_main_widget(folderview->summaryview)) {
2788                         /* comes from summaryview */
2789                         /* we are copying messages, so only accept folder items that are not
2790                            the source item, are no root items and can copy messages */
2791                         if (item && item->folder && folder_item_parent(item) != NULL && src_item &&
2792                             src_item != item && FOLDER_CLASS(item->folder)->copy_msg != NULL &&
2793                             FOLDER_TYPE(item->folder) != F_UNKNOWN)
2794                                 acceptable = TRUE;
2795                 } else if (srcwidget == folderview->ctree) {
2796                         /* comes from folderview */
2797                         /* we are moving folder items, only accept folders that are not
2798                            the source items and can copy messages and create folder items */
2799                         if (item && item->folder && src_item && src_item != item &&
2800                             FOLDER_CLASS(item->folder)->copy_msg != NULL &&
2801                             FOLDER_CLASS(item->folder)->create_folder != NULL &&
2802                             ((FOLDER_TYPE(item->folder) != F_UNKNOWN &&  FOLDER_TYPE(src_item->folder) != F_UNKNOWN)
2803                              || item->folder == src_item->folder))
2804                                 acceptable = TRUE;
2805                 } else {
2806                         /* comes from another app */
2807                         /* we are adding messages, so only accept folder items that are
2808                            no root items and can copy messages */
2809                         if (item && item->folder && folder_item_parent(item) != NULL
2810                             && FOLDER_CLASS(item->folder)->add_msg != NULL &&
2811                             FOLDER_TYPE(item->folder) != F_UNKNOWN)
2812                                 acceptable = TRUE;
2813                 }
2814         }
2815
2816         if (acceptable || (src_item && src_item == item))
2817                 drag_state_start(folderview, node, item);
2818
2819         if (acceptable) {
2820                 g_signal_handlers_block_by_func
2821                         (G_OBJECT(widget),
2822                          G_CALLBACK(folderview_selected), folderview);
2823                 gtk_cmctree_select(GTK_CMCTREE(widget), node);
2824                 g_signal_handlers_unblock_by_func
2825                         (G_OBJECT(widget),
2826                          G_CALLBACK(folderview_selected), folderview);
2827                 gdk_drag_status(context,
2828                                         (gdk_drag_context_get_actions(context) == GDK_ACTION_COPY ?
2829                                         GDK_ACTION_COPY : GDK_ACTION_MOVE) , time);
2830         } else {
2831                 if (folderview->opened)
2832                         gtk_cmctree_select(GTK_CMCTREE(widget), folderview->opened);
2833                 gdk_drag_status(context, 0, time);
2834         }
2835
2836         return acceptable;
2837 }
2838
2839 static void folderview_drag_leave_cb(GtkWidget      *widget,
2840                                      GdkDragContext *context,
2841                                      guint           time,
2842                                      FolderView     *folderview)
2843 {
2844         drag_state_stop(folderview);
2845         folderview->scroll_value = 0;
2846         gtk_cmctree_select(GTK_CMCTREE(widget), folderview->opened);
2847 }
2848
2849 static void free_info (gpointer stuff, gpointer data)
2850 {
2851         g_free(stuff);
2852 }
2853
2854 void folderview_finish_dnd(const gchar *data, GdkDragContext *drag_context,
2855                            guint time, FolderItem *item)
2856 {
2857         GList *list, *tmp;
2858         GSList *msglist = NULL;
2859         list = uri_list_extract_filenames(data);
2860         if (!(item && item->folder && folder_item_parent(item) != NULL
2861                     && FOLDER_CLASS(item->folder)->add_msg != NULL))
2862         {
2863                 gtk_drag_finish(drag_context, FALSE, FALSE, time);
2864                 debug_print("item doesn't fit\n");
2865                 return;
2866         }
2867         if (!list) {
2868                 gtk_drag_finish(drag_context, FALSE, FALSE, time);
2869                 debug_print("list is empty\n");
2870                 return;
2871         }
2872         for (tmp = list; tmp != NULL; tmp = tmp->next) {
2873                 MsgFileInfo *info = NULL;
2874
2875                 if (file_is_email((gchar *)tmp->data)) {
2876                         info = g_new0(MsgFileInfo, 1);
2877                         info->msginfo = NULL;
2878                         info->file = (gchar *)tmp->data;
2879                         msglist = g_slist_prepend(msglist, info);
2880                         debug_print("file is a mail\n");
2881                 } else {
2882                         debug_print("file isn't a mail\n");
2883                 }
2884         }
2885         if (msglist) {
2886                 msglist = g_slist_reverse(msglist);
2887                 folder_item_add_msgs(item, msglist, FALSE);
2888                 g_slist_foreach(msglist, free_info, NULL);
2889                 g_slist_free(msglist);
2890                 gtk_drag_finish(drag_context, TRUE, FALSE, time);
2891         } else {
2892                 gtk_drag_finish(drag_context, FALSE, FALSE, time);
2893         }
2894         list_free_strings(list);
2895         g_list_free(list);
2896 }
2897
2898 static void folderview_drag_received_cb(GtkWidget        *widget,
2899                                         GdkDragContext   *drag_context,
2900                                         gint              x,
2901                                         gint              y,
2902                                         GtkSelectionData *data,
2903                                         guint             info,
2904                                         guint             time,
2905                                         FolderView       *folderview)
2906 {
2907         gint row, column;
2908         FolderItem *item = NULL, *src_item;
2909         GtkCMCTreeNode *node;
2910         int offset = prefs_common.show_col_headers ? 24:0;
2911
2912         folderview->scroll_value = 0;
2913
2914         if (info == TARGET_DUMMY) {
2915                 drag_state_stop(folderview);
2916                 const gchar *ddata = (const gchar *)gtk_selection_data_get_data(data);
2917                 if ((gchar *)strstr(ddata, "FROM_OTHER_FOLDER") != ddata) {
2918                         /* comes from summaryview */
2919                         if (gtk_cmclist_get_selection_info
2920                                 (GTK_CMCLIST(widget), x - offset, y - offset, &row, &column) == 0)
2921                                 return;
2922
2923                         node = gtk_cmctree_node_nth(GTK_CMCTREE(widget), row);
2924                         item = gtk_cmctree_node_get_row_data(GTK_CMCTREE(widget), node);
2925                         src_item = folderview->summaryview->folder_item;
2926
2927                         if (item->no_select) {
2928                                 alertpanel_error(_("The destination folder can only be used to "
2929                                                    "store subfolders."));
2930                                 return;
2931                         }
2932                         /* re-check (due to acceptable possibly set for folder moves */
2933                         if (!(item && item->folder && item->path && !item->no_select &&
2934                               src_item && src_item != item && FOLDER_CLASS(item->folder)->copy_msg != NULL)) {
2935                                 return;
2936                         }
2937                         if (item && src_item) {
2938                                 switch (gdk_drag_context_get_selected_action(drag_context)) {
2939                                 case GDK_ACTION_COPY:
2940                                         summary_copy_selected_to(folderview->summaryview, item);
2941                                         gtk_drag_finish(drag_context, TRUE, FALSE, time);
2942                                         break;
2943                                 case GDK_ACTION_MOVE:
2944                                 case GDK_ACTION_DEFAULT:
2945                                 default:
2946                                         if (FOLDER_CLASS(src_item->folder)->remove_msg == NULL)
2947                                                 summary_copy_selected_to(folderview->summaryview, item);
2948                                         else
2949                                                 summary_move_selected_to(folderview->summaryview, item);
2950                                         gtk_drag_finish(drag_context, TRUE, TRUE, time);
2951                                 }
2952                         } else
2953                                 gtk_drag_finish(drag_context, FALSE, FALSE, time);
2954                 } else {
2955                         /* comes from folderview */
2956                         char *source;
2957                         gboolean folder_is_normal = TRUE;
2958                         gboolean copy = (GDK_ACTION_COPY ==
2959                                 gdk_drag_context_get_selected_action(drag_context));
2960
2961                         source = (char *)gtk_selection_data_get_data(data) + 17;
2962                         if (gtk_cmclist_get_selection_info
2963                             (GTK_CMCLIST(widget), x - offset, y - offset, &row, &column) == 0
2964                             || *source == 0) {
2965                                 gtk_drag_finish(drag_context, FALSE, FALSE, time);
2966                                 return;
2967                         }
2968                         node = gtk_cmctree_node_nth(GTK_CMCTREE(widget), row);
2969                         item = gtk_cmctree_node_get_row_data(GTK_CMCTREE(widget), node);
2970                         src_item = folder_find_item_from_identifier(source);
2971
2972                         folder_is_normal =
2973                                 src_item != NULL &&
2974                                 src_item->stype == F_NORMAL &&
2975                                 !folder_has_parent_of_type(src_item, F_OUTBOX) &&
2976                                 !folder_has_parent_of_type(src_item, F_DRAFT) &&
2977                                 !folder_has_parent_of_type(src_item, F_QUEUE) &&
2978                                 !folder_has_parent_of_type(src_item, F_TRASH);
2979                         if (!item || !src_item || !folder_is_normal) {
2980                                 gtk_drag_finish(drag_context, FALSE, FALSE, time);
2981                                 return;
2982                         }
2983
2984                         folderview_move_folder(folderview, src_item, item, copy);
2985                         gtk_drag_finish(drag_context, TRUE, TRUE, time);
2986                 }
2987                 folderview->nodes_to_recollapse = NULL;
2988         } else if (info == TARGET_MAIL_URI_LIST) {
2989                 if (gtk_cmclist_get_selection_info
2990                         (GTK_CMCLIST(widget), x - offset, y - offset, &row, &column) == 0)
2991                         return;
2992
2993                 node = gtk_cmctree_node_nth(GTK_CMCTREE(widget), row);
2994                 if (!node) {
2995                         gtk_drag_finish(drag_context, FALSE, FALSE, time);
2996                         debug_print("no node\n");
2997                         return;
2998                 }
2999                 item = gtk_cmctree_node_get_row_data(GTK_CMCTREE(widget), node);
3000                 if (!item) {
3001                         gtk_drag_finish(drag_context, FALSE, FALSE, time);
3002                         debug_print("no item\n");
3003                         return;
3004                 }
3005                 folderview_finish_dnd(gtk_selection_data_get_data(data),
3006                         drag_context, time, item);
3007         }
3008 }
3009
3010 static void folderview_drag_end_cb(GtkWidget        *widget,
3011                                    GdkDragContext   *drag_context,
3012                                    FolderView       *folderview)
3013 {
3014         drag_state_stop(folderview);
3015         folderview->scroll_value = 0;
3016         g_slist_free(folderview->nodes_to_recollapse);
3017         folderview->nodes_to_recollapse = NULL;
3018 }
3019
3020 void folderview_register_popup(FolderViewPopup *fpopup)
3021 {
3022         GList *folderviews;
3023
3024         for (folderviews = folderview_list; folderviews != NULL; folderviews = g_list_next(folderviews)) {
3025                 FolderView *folderview = folderviews->data;
3026                 GtkActionGroup *factory;
3027
3028                 factory = create_action_group(folderview, fpopup);
3029                 g_hash_table_insert(folderview->popups, fpopup->klass, factory);
3030         }
3031         g_hash_table_insert(folderview_popups, fpopup->klass, fpopup);
3032 }
3033
3034 void folderview_unregister_popup(FolderViewPopup *fpopup)
3035 {
3036         GList *folderviews;
3037
3038
3039         for (folderviews = folderview_list; folderviews != NULL; folderviews = g_list_next(folderviews)) {
3040                 FolderView *folderview = folderviews->data;
3041
3042                 g_hash_table_remove(folderview->popups, fpopup->klass);
3043         }
3044         g_hash_table_remove(folderview_popups, fpopup->klass);
3045 }