8c3b61ef28aee13a22ffd854bd21cefa8f948be0
[claws.git] / src / folderview.c
1 /*
2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
3  * Copyright (C) 1999-2004 Hiroyuki Yamamoto
4  *
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License as published by
7  * the Free Software Foundation; either version 2 of the License, or
8  * (at your option) any later version.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13  * GNU General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License
16  * along with this program; if not, write to the Free Software
17  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
18  */
19
20 #include "defs.h"
21
22 #include <glib.h>
23 #include <glib/gi18n.h>
24 #include <gdk/gdkkeysyms.h>
25 #include <gtk/gtkwidget.h>
26 #include <gtk/gtkscrolledwindow.h>
27 #include <gtk/gtkctree.h>
28 #include <gtk/gtkcontainer.h>
29 #include <gtk/gtkclist.h>
30 #include <gtk/gtkstyle.h>
31 #include <gtk/gtksignal.h>
32 #include <gtk/gtkmain.h>
33 #include <gtk/gtkstatusbar.h>
34 #include <gtk/gtkmenu.h>
35 #include <gtk/gtkmenuitem.h>
36 #include <gtk/gtkitemfactory.h>
37 #include <stdio.h>
38 #include <string.h>
39 #include <stdlib.h>
40
41 #include "main.h"
42 #include "mainwindow.h"
43 #include "folderview.h"
44 #include "summaryview.h"
45 #include "summary_search.h"
46 #include "inputdialog.h"
47 #include "manage_window.h"
48 #include "alertpanel.h"
49 #include "menu.h"
50 #include "stock_pixmap.h"
51 #include "procmsg.h"
52 #include "utils.h"
53 #include "gtkutils.h"
54 #include "prefs_common.h"
55 #include "prefs_account.h"
56 #include "prefs_filtering.h"
57 #include "prefs_folder_item.h"
58 #include "account.h"
59 #include "folder.h"
60 #include "foldersel.h"
61 #include "inc.h"
62 #include "statusbar.h"
63 #include "hooks.h"
64 #include "folderutils.h"
65 #include "partial_download.h"
66 #include "prefs_folder_column.h"
67
68 #define COL_FOLDER_WIDTH        150
69 #define COL_NUM_WIDTH           32
70
71 static GList *folderview_list = NULL;
72
73 static GtkStyle *normal_style;
74 static GtkStyle *normal_color_style;
75 static GtkStyle *bold_style;
76 static GtkStyle *bold_color_style;
77 static GtkStyle *bold_tgtfold_style;
78
79 static GdkPixmap *inboxxpm;
80 static GdkBitmap *inboxxpmmask;
81 static GdkPixmap *inboxhrmxpm;
82 static GdkBitmap *inboxhrmxpmmask;
83 static GdkPixmap *inboxopenxpm;
84 static GdkBitmap *inboxopenxpmmask;
85 static GdkPixmap *inboxopenhrmxpm;
86 static GdkBitmap *inboxopenhrmxpmmask;
87 static GdkPixmap *outboxxpm;
88 static GdkBitmap *outboxxpmmask;
89 static GdkPixmap *outboxhrmxpm;
90 static GdkBitmap *outboxhrmxpmmask;
91 static GdkPixmap *outboxopenxpm;
92 static GdkBitmap *outboxopenxpmmask;
93 static GdkPixmap *outboxopenhrmxpm;
94 static GdkBitmap *outboxopenhrmxpmmask;
95 static GdkPixmap *folderxpm;
96 static GdkBitmap *folderxpmmask;
97 static GdkPixmap *folderhrmxpm;
98 static GdkBitmap *folderhrmxpmmask;
99 static GdkPixmap *folderopenxpm;
100 static GdkBitmap *folderopenxpmmask;
101 static GdkPixmap *folderopenhrmxpm;
102 static GdkBitmap *folderopenhrmxpmmask;
103 static GdkPixmap *trashopenxpm;
104 static GdkBitmap *trashopenxpmmask;
105 static GdkPixmap *trashopenhrmxpm;
106 static GdkBitmap *trashopenhrmxpmmask;
107 static GdkPixmap *trashxpm;
108 static GdkBitmap *trashxpmmask;
109 static GdkPixmap *trashhrmxpm;
110 static GdkBitmap *trashhrmxpmmask;
111 static GdkPixmap *queuexpm;
112 static GdkBitmap *queuexpmmask;
113 static GdkPixmap *queuehrmxpm;
114 static GdkBitmap *queuehrmxpmmask;
115 static GdkPixmap *queueopenxpm;
116 static GdkBitmap *queueopenxpmmask;
117 static GdkPixmap *queueopenhrmxpm;
118 static GdkBitmap *queueopenhrmxpmmask;
119 static GdkPixmap *draftsxpm;
120 static GdkBitmap *draftsxpmmask;
121 static GdkPixmap *draftsopenxpm;
122 static GdkBitmap *draftsopenxpmmask;
123 static GdkPixmap *noselectxpm;
124 static GdkBitmap *noselectxpmmask;
125
126 static GdkPixmap *m_inboxxpm;
127 static GdkBitmap *m_inboxxpmmask;
128 static GdkPixmap *m_inboxhrmxpm;
129 static GdkBitmap *m_inboxhrmxpmmask;
130 static GdkPixmap *m_inboxopenxpm;
131 static GdkBitmap *m_inboxopenxpmmask;
132 static GdkPixmap *m_inboxopenhrmxpm;
133 static GdkBitmap *m_inboxopenhrmxpmmask;
134 static GdkPixmap *m_outboxxpm;
135 static GdkBitmap *m_outboxxpmmask;
136 static GdkPixmap *m_outboxhrmxpm;
137 static GdkBitmap *m_outboxhrmxpmmask;
138 static GdkPixmap *m_outboxopenxpm;
139 static GdkBitmap *m_outboxopenxpmmask;
140 static GdkPixmap *m_outboxopenhrmxpm;
141 static GdkBitmap *m_outboxopenhrmxpmmask;
142 static GdkPixmap *m_folderxpm;
143 static GdkBitmap *m_folderxpmmask;
144 static GdkPixmap *m_folderhrmxpm;
145 static GdkBitmap *m_folderhrmxpmmask;
146 static GdkPixmap *m_folderopenxpm;
147 static GdkBitmap *m_folderopenxpmmask;
148 static GdkPixmap *m_folderopenhrmxpm;
149 static GdkBitmap *m_folderopenhrmxpmmask;
150 static GdkPixmap *m_trashopenxpm;
151 static GdkBitmap *m_trashopenxpmmask;
152 static GdkPixmap *m_trashopenhrmxpm;
153 static GdkBitmap *m_trashopenhrmxpmmask;
154 static GdkPixmap *m_trashxpm;
155 static GdkBitmap *m_trashxpmmask;
156 static GdkPixmap *m_trashhrmxpm;
157 static GdkBitmap *m_trashhrmxpmmask;
158 static GdkPixmap *m_queuexpm;
159 static GdkBitmap *m_queuexpmmask;
160 static GdkPixmap *m_queuehrmxpm;
161 static GdkBitmap *m_queuehrmxpmmask;
162 static GdkPixmap *m_queueopenxpm;
163 static GdkBitmap *m_queueopenxpmmask;
164 static GdkPixmap *m_queueopenhrmxpm;
165 static GdkBitmap *m_queueopenhrmxpmmask;
166 static GdkPixmap *m_draftsxpm;
167 static GdkBitmap *m_draftsxpmmask;
168 static GdkPixmap *m_draftsopenxpm;
169 static GdkBitmap *m_draftsopenxpmmask;
170
171 static GdkPixmap *newxpm;
172 static GdkBitmap *newxpmmask;
173 static GdkPixmap *unreadxpm;
174 static GdkBitmap *unreadxpmmask;
175 static GdkPixmap *readxpm;
176 static GdkBitmap *readxpmmask;
177
178
179 static void folderview_select_node       (FolderView    *folderview,
180                                           GtkCTreeNode  *node);
181 static void folderview_set_folders       (FolderView    *folderview);
182 static void folderview_sort_folders      (FolderView    *folderview,
183                                           GtkCTreeNode  *root,
184                                           Folder        *folder);
185 static void folderview_append_folder     (FolderView    *folderview,
186                                           Folder        *folder);
187 static void folderview_update_node       (FolderView    *folderview,
188                                           GtkCTreeNode  *node);
189
190 static gint folderview_clist_compare    (GtkCList       *clist,
191                                          gconstpointer   ptr1,
192                                          gconstpointer   ptr2);
193
194 /* callback functions */
195 static gboolean folderview_button_pressed       (GtkWidget      *ctree,
196                                                  GdkEventButton *event,
197                                                  FolderView     *folderview);
198 static gboolean folderview_button_released      (GtkWidget      *ctree,
199                                                  GdkEventButton *event,
200                                                  FolderView     *folderview);
201 static gboolean folderview_key_pressed  (GtkWidget      *widget,
202                                          GdkEventKey    *event,
203                                          FolderView     *folderview);
204 static void folderview_selected         (GtkCTree       *ctree,
205                                          GtkCTreeNode   *row,
206                                          gint            column,
207                                          FolderView     *folderview);
208 static void folderview_tree_expanded    (GtkCTree       *ctree,
209                                          GtkCTreeNode   *node,
210                                          FolderView     *folderview);
211 static void folderview_tree_collapsed   (GtkCTree       *ctree,
212                                          GtkCTreeNode   *node,
213                                          FolderView     *folderview);
214 static void folderview_popup_close      (GtkMenuShell   *menu_shell,
215                                          FolderView     *folderview);
216 static void folderview_col_resized      (GtkCList       *clist,
217                                          gint            column,
218                                          gint            width,
219                                          FolderView     *folderview);
220
221 static void mark_all_read_cb            (FolderView    *folderview,
222                                          guint           action,
223                                          GtkWidget      *widget);
224
225 static void folderview_empty_trash_cb   (FolderView     *folderview,
226                                          guint           action,
227                                          GtkWidget      *widget);
228
229 static void folderview_search_cb        (FolderView     *folderview,
230                                          guint           action,
231                                          GtkWidget      *widget);
232
233 static void folderview_property_cb      (FolderView     *folderview,
234                                          guint           action,
235                                          GtkWidget      *widget);
236
237 static gboolean folderview_drag_motion_cb(GtkWidget      *widget,
238                                           GdkDragContext *context,
239                                           gint            x,
240                                           gint            y,
241                                           guint           time,
242                                           FolderView     *folderview);
243 static void folderview_drag_leave_cb     (GtkWidget        *widget,
244                                           GdkDragContext   *context,
245                                           guint             time,
246                                           FolderView       *folderview);
247 static void folderview_drag_received_cb  (GtkWidget        *widget,
248                                           GdkDragContext   *drag_context,
249                                           gint              x,
250                                           gint              y,
251                                           GtkSelectionData *data,
252                                           guint             info,
253                                           guint             time,
254                                           FolderView       *folderview);
255 static void folderview_start_drag        (GtkWidget *widget, gint button, GdkEvent *event,
256                                           FolderView       *folderview);
257 static void folderview_drag_data_get     (GtkWidget        *widget,
258                                           GdkDragContext   *drag_context,
259                                           GtkSelectionData *selection_data,
260                                           guint             info,
261                                           guint             time,
262                                           FolderView       *folderview);
263 static void folderview_drag_end_cb       (GtkWidget        *widget,
264                                           GdkDragContext   *drag_context,
265                                           FolderView       *folderview);
266
267 void folderview_create_folder_node       (FolderView       *folderview, 
268                                           FolderItem       *item);
269 gboolean folderview_update_folder        (gpointer          source,
270                                           gpointer          userdata);
271 gboolean folderview_update_item_claws    (gpointer          source,
272                                           gpointer          data);
273 static void folderview_processing_cb(FolderView *folderview, guint action,
274                                      GtkWidget *widget);
275
276 GHashTable *folderview_popups;
277
278 static GtkItemFactoryEntry folderview_common_popup_entries[] =
279 {
280         {N_("/Mark all re_ad"),         NULL, mark_all_read_cb, 0, NULL},
281         {N_("/_Search folder..."),      NULL, folderview_search_cb, 0, NULL},
282         {N_("/_Properties..."),         NULL, folderview_property_cb, 0, NULL},
283         {N_("/Process_ing..."),         NULL, folderview_processing_cb, 0, NULL},
284 };
285
286 static GtkItemFactoryEntry folder_view_trash_popup_entries[] = {
287         {N_("/------"),                 NULL, NULL, 0, "<Separator>"},
288         {N_("/Empty _trash..."),        NULL, folderview_empty_trash_cb, 0, NULL},
289 };
290
291
292 GtkTargetEntry folderview_drag_types[] =
293 {
294         {"text/plain", GTK_TARGET_SAME_APP, TARGET_DUMMY}
295 };
296
297 void folderview_initialize(void)
298 {
299         FolderViewPopup *fpopup;
300         guint i, n_entries;
301         GSList *entries = NULL;
302
303         fpopup = g_new0(FolderViewPopup, 1);
304
305         n_entries = sizeof(folderview_common_popup_entries) /
306                 sizeof(folderview_common_popup_entries[0]);
307         for (i = 0; i < n_entries; i++)
308                 entries = g_slist_append(entries, &folderview_common_popup_entries[i]);
309
310         fpopup->klass = "common";
311         fpopup->path = "<CommonFolder>";
312         fpopup->entries = entries;
313         fpopup->set_sensitivity = NULL;
314
315         folderview_popups = g_hash_table_new(g_str_hash, g_str_equal);
316         g_hash_table_insert(folderview_popups, "common", fpopup);
317 }
318
319 static GtkItemFactory *create_ifactory(FolderView *folderview, FolderViewPopup *fpopup)
320 {
321         GSList *entries;
322         GtkItemFactory *factory;
323         FolderViewPopup *fpopup_common;
324         GtkWidget *popup;
325
326         factory = gtk_item_factory_new(GTK_TYPE_MENU, fpopup->path, NULL);
327         gtk_item_factory_set_translate_func(factory, menu_translate,
328                                             NULL, NULL);
329
330         for (entries = fpopup->entries; entries != NULL; entries = g_slist_next(entries))
331                 gtk_item_factory_create_item(factory, entries->data, folderview, 1);
332
333         fpopup_common = g_hash_table_lookup(folderview_popups, "common");
334         if (fpopup_common != fpopup)
335                 for (entries = fpopup_common->entries; entries != NULL; entries = g_slist_next(entries))
336                         gtk_item_factory_create_item(factory, entries->data, folderview, 1);
337
338         popup = gtk_item_factory_get_widget(factory, fpopup->path);
339         g_signal_connect(G_OBJECT(popup), "selection_done",
340                          G_CALLBACK(folderview_popup_close),
341                          folderview);
342
343         return factory;
344 }
345
346 static void create_ifactories(gpointer key, gpointer value, gpointer data)
347 {
348         FolderView *folderview = data;
349         FolderViewPopup *fpopup = value;
350         GtkItemFactory *factory;
351
352         factory = create_ifactory(folderview, fpopup);
353         g_hash_table_insert(folderview->popups, fpopup->klass, factory);
354 }
355
356 static void folderview_column_set_titles(FolderView *folderview)
357 {
358         GtkWidget *ctree = folderview->ctree;
359         GtkWidget *label_new;
360         GtkWidget *label_unread;
361         GtkWidget *label_total;
362         GtkWidget *hbox_new;
363         GtkWidget *hbox_unread;
364         GtkWidget *hbox_total;
365         gint *col_pos = folderview->col_pos;
366         
367         debug_print("setting titles...\n");
368         gtk_widget_realize(folderview->ctree);
369         gtk_widget_show_all(folderview->scrolledwin);
370         
371         /* CLAWS: titles for "New" and "Unread" show new & unread pixmaps
372          * instead text (text overflows making them unreadable and ugly) */
373         stock_pixmap_gdk(ctree, STOCK_PIXMAP_NEW,
374                          &newxpm, &newxpmmask);
375         stock_pixmap_gdk(ctree, STOCK_PIXMAP_UNREAD,
376                          &unreadxpm, &unreadxpmmask);
377         stock_pixmap_gdk(ctree, STOCK_PIXMAP_READ,
378                          &readxpm, &readxpmmask);
379                 
380         label_new = gtk_pixmap_new(newxpm, newxpmmask);
381         label_unread = gtk_pixmap_new(unreadxpm, unreadxpmmask);
382         label_total = gtk_pixmap_new(readxpm, readxpmmask);
383
384         hbox_new = gtk_hbox_new(FALSE, 4);
385         hbox_unread = gtk_hbox_new(FALSE, 4);
386         hbox_total = gtk_hbox_new(FALSE, 4);
387
388         /* left justified */
389         gtk_box_pack_start(GTK_BOX(hbox_new), label_new, TRUE, TRUE, 0);
390         gtk_misc_set_alignment (GTK_MISC (label_new), 1, 0.5);
391         gtk_box_pack_start(GTK_BOX(hbox_unread), label_unread, TRUE, TRUE, 0);
392         gtk_misc_set_alignment (GTK_MISC (label_unread), 1, 0.5);
393         gtk_box_pack_start(GTK_BOX(hbox_total), label_total, TRUE, TRUE, 0);
394         gtk_misc_set_alignment (GTK_MISC (label_total), 1, 0.5);
395
396         gtk_widget_show_all(hbox_new);
397         gtk_widget_show_all(hbox_unread);
398         gtk_widget_show_all(hbox_total);
399
400         gtk_clist_set_column_widget(GTK_CLIST(ctree),col_pos[F_COL_NEW],hbox_new);
401         gtk_clist_set_column_widget(GTK_CLIST(ctree),col_pos[F_COL_UNREAD],hbox_unread);
402         gtk_clist_set_column_widget(GTK_CLIST(ctree),col_pos[F_COL_TOTAL],hbox_total);
403 }
404
405 GtkWidget *folderview_ctree_create(FolderView *folderview)
406 {
407         GtkWidget *ctree;
408         gint *col_pos;
409         FolderColumnState *col_state;
410         FolderColumnType type;
411         gchar *titles[N_FOLDER_COLS];
412         gint i;
413         GtkWidget *scrolledwin = folderview->scrolledwin;
414
415         debug_print("creating tree...\n");
416         memset(titles, 0, sizeof(titles));
417
418         col_state = prefs_folder_column_get_config();
419         memset(titles, 0, sizeof(titles));
420
421         col_pos = folderview->col_pos;
422
423         for (i = 0; i < N_FOLDER_COLS; i++) {
424                 folderview->col_state[i] = col_state[i];
425                 type = col_state[i].type;
426                 col_pos[type] = i;
427         }
428
429         titles[col_pos[F_COL_FOLDER]] = _("Folder");
430         titles[col_pos[F_COL_NEW]]    = _("New");
431         titles[col_pos[F_COL_UNREAD]] = _("Unread");
432         titles[col_pos[F_COL_TOTAL]]  = _("#");
433
434         ctree = gtk_sctree_new_with_titles(N_FOLDER_COLS, col_pos[F_COL_FOLDER],
435                                            titles);
436         
437         gtk_clist_set_selection_mode(GTK_CLIST(ctree), GTK_SELECTION_BROWSE);
438         gtk_clist_set_column_justification(GTK_CLIST(ctree), col_pos[F_COL_NEW],
439                                            GTK_JUSTIFY_RIGHT);
440         gtk_clist_set_column_justification(GTK_CLIST(ctree),
441                                            col_pos[F_COL_UNREAD],
442                                            GTK_JUSTIFY_RIGHT);
443         gtk_clist_set_column_justification(GTK_CLIST(ctree), 
444                                            col_pos[F_COL_TOTAL],
445                                            GTK_JUSTIFY_RIGHT);
446         gtk_ctree_set_line_style(GTK_CTREE(ctree), GTK_CTREE_LINES_DOTTED);
447         gtk_ctree_set_expander_style(GTK_CTREE(ctree),
448                                      GTK_CTREE_EXPANDER_SQUARE);
449         gtk_ctree_set_indent(GTK_CTREE(ctree), CTREE_INDENT);
450         gtk_clist_set_compare_func(GTK_CLIST(ctree), folderview_clist_compare);
451
452         /* don't let title buttons take key focus */
453         for (i = 0; i < N_FOLDER_COLS; i++) {
454                 GTK_WIDGET_UNSET_FLAGS(GTK_CLIST(ctree)->column[i].button,
455                                        GTK_CAN_FOCUS);
456                 gtk_clist_set_column_width(GTK_CLIST(ctree), col_pos[i],
457                                    prefs_common.folder_col_size[i]);
458                 gtk_clist_set_column_visibility
459                         (GTK_CLIST(ctree), i, col_state[i].visible);
460         }
461
462         g_signal_connect(G_OBJECT(ctree), "key_press_event",
463                          G_CALLBACK(folderview_key_pressed),
464                          folderview);
465         g_signal_connect(G_OBJECT(ctree), "button_press_event",
466                          G_CALLBACK(folderview_button_pressed),
467                          folderview);
468         g_signal_connect(G_OBJECT(ctree), "button_release_event",
469                          G_CALLBACK(folderview_button_released),
470                          folderview);
471         g_signal_connect(G_OBJECT(ctree), "tree_select_row",
472                          G_CALLBACK(folderview_selected), folderview);
473         g_signal_connect(G_OBJECT(ctree), "start_drag",
474                          G_CALLBACK(folderview_start_drag), folderview);
475         g_signal_connect(G_OBJECT(ctree), "drag_data_get",
476                          G_CALLBACK(folderview_drag_data_get),
477                          folderview);
478
479         g_signal_connect_after(G_OBJECT(ctree), "tree_expand",
480                                G_CALLBACK(folderview_tree_expanded),
481                                folderview);
482         g_signal_connect_after(G_OBJECT(ctree), "tree_collapse",
483                                G_CALLBACK(folderview_tree_collapsed),
484                                folderview);
485
486         g_signal_connect(G_OBJECT(ctree), "resize_column",
487                          G_CALLBACK(folderview_col_resized),
488                          folderview);
489
490         /* drop callback */
491         gtk_drag_dest_set(ctree, GTK_DEST_DEFAULT_ALL & ~GTK_DEST_DEFAULT_HIGHLIGHT,
492                           summary_drag_types, 1,
493                           GDK_ACTION_MOVE | GDK_ACTION_COPY | GDK_ACTION_DEFAULT);
494         g_signal_connect(G_OBJECT(ctree), "drag_motion",
495                          G_CALLBACK(folderview_drag_motion_cb),
496                          folderview);
497         g_signal_connect(G_OBJECT(ctree), "drag_leave",
498                          G_CALLBACK(folderview_drag_leave_cb),
499                          folderview);
500         g_signal_connect(G_OBJECT(ctree), "drag_data_received",
501                          G_CALLBACK(folderview_drag_received_cb),
502                          folderview);
503         g_signal_connect(G_OBJECT(ctree), "drag_end",
504                          G_CALLBACK(folderview_drag_end_cb),
505                          folderview);
506
507         gtk_container_add(GTK_CONTAINER(scrolledwin), ctree);
508
509         return ctree;
510 }
511
512 void folderview_set_column_order(FolderView *folderview)
513 {
514         GtkWidget *ctree;
515         FolderItem *item = folderview_get_selected_item(folderview);
516         GtkWidget *scrolledwin = folderview->scrolledwin;
517
518         debug_print("recreating tree...\n");
519         gtk_widget_destroy(folderview->ctree);
520
521         folderview->ctree = ctree = folderview_ctree_create(folderview);
522         gtk_scrolled_window_set_hadjustment(GTK_SCROLLED_WINDOW(scrolledwin),
523                                             GTK_CLIST(ctree)->hadjustment);
524         gtk_scrolled_window_set_vadjustment(GTK_SCROLLED_WINDOW(scrolledwin),
525                                             GTK_CLIST(ctree)->vadjustment);
526         gtk_widget_show(ctree);
527         
528         folderview_set(folderview);
529         folderview_column_set_titles(folderview);
530
531         folderview_select(folderview,item);
532 }
533
534 FolderView *folderview_create(void)
535 {
536         FolderView *folderview;
537         GtkWidget *scrolledwin;
538         GtkWidget *ctree;
539
540         debug_print("Creating folder view...\n");
541         folderview = g_new0(FolderView, 1);
542
543         scrolledwin = gtk_scrolled_window_new(NULL, NULL);
544         gtk_scrolled_window_set_policy
545                 (GTK_SCROLLED_WINDOW(scrolledwin),
546                  GTK_POLICY_AUTOMATIC,
547                  prefs_common.folderview_vscrollbar_policy);
548         gtk_widget_set_size_request(scrolledwin,
549                              prefs_common.folderview_width,
550                              prefs_common.folderview_height);
551
552         folderview->scrolledwin  = scrolledwin;
553         ctree = folderview_ctree_create(folderview);
554         
555         /* create popup factories */
556         folderview->popups = g_hash_table_new(g_str_hash, g_str_equal);
557         g_hash_table_foreach(folderview_popups, create_ifactories, folderview);
558
559         folderview->ctree        = ctree;
560
561         folderview->folder_update_callback_id =
562                 hooks_register_hook(FOLDER_UPDATE_HOOKLIST, folderview_update_folder, (gpointer) folderview);
563         folderview->folder_item_update_callback_id =
564                 hooks_register_hook(FOLDER_ITEM_UPDATE_HOOKLIST, folderview_update_item_claws, (gpointer) folderview);
565
566         gtk_widget_show_all(scrolledwin);
567         
568         folderview->target_list = gtk_target_list_new(folderview_drag_types, 1);
569         folderview_list = g_list_append(folderview_list, folderview);
570
571         return folderview;
572 }
573
574 void folderview_init(FolderView *folderview)
575 {
576         GtkWidget *ctree = folderview->ctree;
577
578         stock_pixmap_gdk(ctree, STOCK_PIXMAP_INBOX_CLOSE, &inboxxpm, &inboxxpmmask);
579         stock_pixmap_gdk(ctree, STOCK_PIXMAP_INBOX_CLOSE_HRM, &inboxhrmxpm, &inboxhrmxpmmask);
580         stock_pixmap_gdk(ctree, STOCK_PIXMAP_INBOX_OPEN, &inboxopenxpm, &inboxopenxpmmask);
581         stock_pixmap_gdk(ctree, STOCK_PIXMAP_INBOX_OPEN_HRM, &inboxopenhrmxpm, &inboxopenhrmxpmmask);
582         stock_pixmap_gdk(ctree, STOCK_PIXMAP_OUTBOX_CLOSE, &outboxxpm, &outboxxpmmask);
583         stock_pixmap_gdk(ctree, STOCK_PIXMAP_OUTBOX_CLOSE_HRM, &outboxhrmxpm, &outboxhrmxpmmask);
584         stock_pixmap_gdk(ctree, STOCK_PIXMAP_OUTBOX_OPEN, &outboxopenxpm, &outboxopenxpmmask);
585         stock_pixmap_gdk(ctree, STOCK_PIXMAP_OUTBOX_OPEN_HRM, &outboxopenhrmxpm, &outboxopenhrmxpmmask);
586         stock_pixmap_gdk(ctree, STOCK_PIXMAP_DIR_CLOSE, &folderxpm, &folderxpmmask);
587         stock_pixmap_gdk(ctree, STOCK_PIXMAP_DIR_CLOSE_HRM, &folderhrmxpm, &folderhrmxpmmask);
588         stock_pixmap_gdk(ctree, STOCK_PIXMAP_DIR_OPEN, &folderopenxpm, &folderopenxpmmask);
589         stock_pixmap_gdk(ctree, STOCK_PIXMAP_DIR_OPEN_HRM, &folderopenhrmxpm, &folderopenhrmxpmmask);
590         stock_pixmap_gdk(ctree, STOCK_PIXMAP_TRASH_OPEN, &trashopenxpm, &trashopenxpmmask);
591         stock_pixmap_gdk(ctree, STOCK_PIXMAP_TRASH_OPEN_HRM, &trashopenhrmxpm, &trashopenhrmxpmmask);
592         stock_pixmap_gdk(ctree, STOCK_PIXMAP_TRASH_CLOSE, &trashxpm, &trashxpmmask);
593         stock_pixmap_gdk(ctree, STOCK_PIXMAP_TRASH_CLOSE_HRM, &trashhrmxpm, &trashhrmxpmmask);
594         stock_pixmap_gdk(ctree, STOCK_PIXMAP_QUEUE_CLOSE, &queuexpm, &queuexpmmask);
595         stock_pixmap_gdk(ctree, STOCK_PIXMAP_QUEUE_CLOSE_HRM, &queuehrmxpm, &queuehrmxpmmask);
596         stock_pixmap_gdk(ctree, STOCK_PIXMAP_QUEUE_OPEN, &queueopenxpm, &queueopenxpmmask);
597         stock_pixmap_gdk(ctree, STOCK_PIXMAP_QUEUE_OPEN_HRM, &queueopenhrmxpm, &queueopenhrmxpmmask);
598         stock_pixmap_gdk(ctree, STOCK_PIXMAP_DRAFTS_CLOSE, &draftsxpm, &draftsxpmmask);
599         stock_pixmap_gdk(ctree, STOCK_PIXMAP_DRAFTS_OPEN, &draftsopenxpm, &draftsopenxpmmask);
600         stock_pixmap_gdk(ctree, STOCK_PIXMAP_DIR_NOSELECT, &noselectxpm, &noselectxpmmask);
601
602         stock_pixmap_gdk(ctree, STOCK_PIXMAP_INBOX_CLOSE_MARK, &m_inboxxpm, &m_inboxxpmmask);
603         stock_pixmap_gdk(ctree, STOCK_PIXMAP_INBOX_CLOSE_HRM_MARK, &m_inboxhrmxpm, &m_inboxhrmxpmmask);
604         stock_pixmap_gdk(ctree, STOCK_PIXMAP_INBOX_OPEN_MARK, &m_inboxopenxpm, &m_inboxopenxpmmask);
605         stock_pixmap_gdk(ctree, STOCK_PIXMAP_INBOX_OPEN_HRM_MARK, &m_inboxopenhrmxpm, &m_inboxopenhrmxpmmask);
606         stock_pixmap_gdk(ctree, STOCK_PIXMAP_OUTBOX_CLOSE_MARK, &m_outboxxpm, &m_outboxxpmmask);
607         stock_pixmap_gdk(ctree, STOCK_PIXMAP_OUTBOX_CLOSE_HRM_MARK, &m_outboxhrmxpm, &m_outboxhrmxpmmask);
608         stock_pixmap_gdk(ctree, STOCK_PIXMAP_OUTBOX_OPEN_MARK, &m_outboxopenxpm, &m_outboxopenxpmmask);
609         stock_pixmap_gdk(ctree, STOCK_PIXMAP_OUTBOX_OPEN_HRM_MARK, &m_outboxopenhrmxpm, &m_outboxopenhrmxpmmask);
610         stock_pixmap_gdk(ctree, STOCK_PIXMAP_DIR_CLOSE_MARK, &m_folderxpm, &m_folderxpmmask);
611         stock_pixmap_gdk(ctree, STOCK_PIXMAP_DIR_CLOSE_HRM_MARK, &m_folderhrmxpm, &m_folderhrmxpmmask);
612         stock_pixmap_gdk(ctree, STOCK_PIXMAP_DIR_OPEN_MARK, &m_folderopenxpm, &m_folderopenxpmmask);
613         stock_pixmap_gdk(ctree, STOCK_PIXMAP_DIR_OPEN_HRM_MARK, &m_folderopenhrmxpm, &m_folderopenhrmxpmmask);
614         stock_pixmap_gdk(ctree, STOCK_PIXMAP_TRASH_OPEN_MARK, &m_trashopenxpm, &m_trashopenxpmmask);
615         stock_pixmap_gdk(ctree, STOCK_PIXMAP_TRASH_OPEN_HRM_MARK, &m_trashopenhrmxpm, &m_trashopenhrmxpmmask);
616         stock_pixmap_gdk(ctree, STOCK_PIXMAP_TRASH_CLOSE_MARK, &m_trashxpm, &m_trashxpmmask);
617         stock_pixmap_gdk(ctree, STOCK_PIXMAP_TRASH_CLOSE_HRM_MARK, &m_trashhrmxpm, &m_trashhrmxpmmask);
618         stock_pixmap_gdk(ctree, STOCK_PIXMAP_QUEUE_CLOSE_MARK, &m_queuexpm, &m_queuexpmmask);
619         stock_pixmap_gdk(ctree, STOCK_PIXMAP_QUEUE_CLOSE_HRM_MARK, &m_queuehrmxpm, &m_queuehrmxpmmask);
620         stock_pixmap_gdk(ctree, STOCK_PIXMAP_QUEUE_OPEN_MARK, &m_queueopenxpm, &m_queueopenxpmmask);
621         stock_pixmap_gdk(ctree, STOCK_PIXMAP_QUEUE_OPEN_HRM_MARK, &m_queueopenhrmxpm, &m_queueopenhrmxpmmask);
622         stock_pixmap_gdk(ctree, STOCK_PIXMAP_DRAFTS_CLOSE_MARK, &m_draftsxpm, &m_draftsxpmmask);
623         stock_pixmap_gdk(ctree, STOCK_PIXMAP_DRAFTS_OPEN_MARK, &m_draftsopenxpm, &m_draftsopenxpmmask);
624                         
625         if (!normal_style) {
626                 PangoFontDescription *font_desc;
627                 normal_style = gtk_style_copy(gtk_widget_get_style(ctree));
628                 font_desc = pango_font_description_from_string(NORMAL_FONT);
629                 if (font_desc) {
630                         if (normal_style->font_desc)
631                                 pango_font_description_free
632                                         (normal_style->font_desc);
633                         normal_style->font_desc = font_desc;
634                 }
635                 normal_color_style = gtk_style_copy(normal_style);
636                 normal_color_style->fg[GTK_STATE_NORMAL] = folderview->color_new;
637
638                 gtk_widget_set_style(ctree, normal_style);
639         }
640
641         if (!bold_style) {
642                 bold_style = gtk_style_copy(gtk_widget_get_style(ctree));
643                 pango_font_description_set_weight
644                         (bold_style->font_desc, PANGO_WEIGHT_BOLD);
645                 bold_color_style = gtk_style_copy(bold_style);
646                 bold_color_style->fg[GTK_STATE_NORMAL] = folderview->color_new;
647
648                 bold_tgtfold_style = gtk_style_copy(bold_style);
649                 bold_tgtfold_style->fg[GTK_STATE_NORMAL] = folderview->color_op;
650         }
651 }
652
653 void folderview_set(FolderView *folderview)
654 {
655         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
656         MainWindow *mainwin = folderview->mainwin;
657
658         debug_print("Setting folder info...\n");
659         STATUSBAR_PUSH(mainwin, _("Setting folder info..."));
660
661         main_window_cursor_wait(mainwin);
662
663         folderview->selected = NULL;
664         folderview->opened = NULL;
665
666         gtk_clist_freeze(GTK_CLIST(ctree));
667         gtk_clist_clear(GTK_CLIST(ctree));
668         gtk_clist_thaw(GTK_CLIST(ctree));
669         gtk_clist_freeze(GTK_CLIST(ctree));
670
671         folderview_set_folders(folderview);
672
673         gtk_clist_thaw(GTK_CLIST(ctree));
674         main_window_cursor_normal(mainwin);
675         STATUSBAR_POP(mainwin);
676 }
677
678 void folderview_set_all(void)
679 {
680         GList *list;
681
682         for (list = folderview_list; list != NULL; list = list->next)
683                 folderview_set((FolderView *)list->data);
684 }
685
686 void folderview_select(FolderView *folderview, FolderItem *item)
687 {
688         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
689         GtkCTreeNode *node;
690         GtkCTreeNode *old_selected = folderview->selected;
691
692         if (!item) return;
693
694         node = gtk_ctree_find_by_row_data(ctree, NULL, item);
695         if (node) folderview_select_node(folderview, node);
696
697         if (old_selected != node)
698                 folder_update_op_count();
699 }
700
701 static void mark_all_read_cb(FolderView *folderview, guint action,
702                              GtkWidget *widget)
703 {
704         FolderItem *item;
705
706         item = folderview_get_selected_item(folderview);
707         if (item == NULL)
708                 return;
709
710         summary_lock(folderview->summaryview);
711         folder_item_update_freeze();
712         if (folderview->summaryview->folder_item == item)
713                 gtk_clist_freeze(GTK_CLIST(folderview->summaryview->ctree));
714         folderutils_mark_all_read(item);
715         if (folderview->summaryview->folder_item == item)
716                 gtk_clist_thaw(GTK_CLIST(folderview->summaryview->ctree));
717         folder_item_update_thaw();
718         summary_unlock(folderview->summaryview);
719 }
720
721 static void folderview_select_node(FolderView *folderview, GtkCTreeNode *node)
722 {
723         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
724
725         g_return_if_fail(node != NULL);
726
727         folderview->open_folder = TRUE;
728         gtkut_ctree_set_focus_row(ctree, node);
729         gtk_ctree_select(ctree, node);
730         if (folderview->summaryview->folder_item &&
731             folderview->summaryview->folder_item->total_msgs > 0)
732                 gtk_widget_grab_focus(folderview->summaryview->ctree);
733         else
734                 gtk_widget_grab_focus(folderview->ctree);
735
736         gtkut_ctree_expand_parent_all(ctree, node);
737 }
738
739 void folderview_unselect(FolderView *folderview)
740 {
741         if (folderview->opened && !GTK_CTREE_ROW(folderview->opened)->children)
742                 gtk_ctree_collapse
743                         (GTK_CTREE(folderview->ctree), folderview->opened);
744
745         folderview->selected = folderview->opened = NULL;
746 }
747
748 static GtkCTreeNode *folderview_find_next_unread(GtkCTree *ctree,
749                                                  GtkCTreeNode *node)
750 {
751         FolderItem *item;
752
753         if (node)
754                 node = gtkut_ctree_node_next(ctree, node);
755         else
756                 node = GTK_CTREE_NODE(GTK_CLIST(ctree)->row_list);
757
758         for (; node != NULL; node = gtkut_ctree_node_next(ctree, node)) {
759                 item = gtk_ctree_node_get_row_data(ctree, node);
760                 if (item && item->unread_msgs > 0 && item->stype != F_TRASH)
761                         return node;
762         }
763
764         return NULL;
765 }
766
767 void folderview_select_next_unread(FolderView *folderview)
768 {
769         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
770         GtkCTreeNode *node = NULL;
771
772         if ((node = folderview_find_next_unread(ctree, folderview->opened))
773             != NULL) {
774                 folderview_select_node(folderview, node);
775                 return;
776         }
777
778         if (!folderview->opened ||
779             folderview->opened == GTK_CTREE_NODE(GTK_CLIST(ctree)->row_list))
780                 return;
781         /* search again from the first node */
782         if ((node = folderview_find_next_unread(ctree, NULL)) != NULL)
783                 folderview_select_node(folderview, node);
784 }
785
786 static GtkCTreeNode *folderview_find_next_new(GtkCTree *ctree,
787                                                  GtkCTreeNode *node)
788 {
789         FolderItem *item;
790
791         if (node)
792                 node = gtkut_ctree_node_next(ctree, node);
793         else
794                 node = GTK_CTREE_NODE(GTK_CLIST(ctree)->row_list);
795
796         for (; node != NULL; node = gtkut_ctree_node_next(ctree, node)) {
797                 item = gtk_ctree_node_get_row_data(ctree, node);
798                 if (item && item->new_msgs > 0 && item->stype != F_TRASH)
799                         return node;
800         }
801
802         return NULL;
803 }
804
805 void folderview_select_next_new(FolderView *folderview)
806 {
807         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
808         GtkCTreeNode *node = NULL;
809
810         if ((node = folderview_find_next_new(ctree, folderview->opened))
811             != NULL) {
812                 folderview_select_node(folderview, node);
813                 return;
814         }
815
816         if (!folderview->opened ||
817             folderview->opened == GTK_CTREE_NODE(GTK_CLIST(ctree)->row_list))
818                 return;
819         /* search again from the first node */
820         if ((node = folderview_find_next_new(ctree, NULL)) != NULL)
821                 folderview_select_node(folderview, node);
822 }
823
824 FolderItem *folderview_get_selected_item(FolderView *folderview)
825 {
826         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
827
828         if (!folderview->selected) return NULL;
829         return gtk_ctree_node_get_row_data(ctree, folderview->selected);
830 }
831
832 void folderview_update_msg_num(FolderView *folderview, GtkCTreeNode *row)
833 {
834         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
835         static GtkCTreeNode *prev_row = NULL;
836         FolderItem *item;
837         gint new, unread, total;
838         gchar *new_str, *unread_str, *total_str;
839         gint *col_pos = folderview->col_pos;
840
841         if (!row) return;
842
843         item = gtk_ctree_node_get_row_data(ctree, row);
844         if (!item) return;
845
846         gtk_ctree_node_get_text(ctree, row, col_pos[F_COL_NEW], &new_str);
847         gtk_ctree_node_get_text(ctree, row, col_pos[F_COL_UNREAD], &unread_str);
848         gtk_ctree_node_get_text(ctree, row, col_pos[F_COL_TOTAL], &total_str);
849         new = atoi(new_str);
850         unread = atoi(unread_str);
851         total = atoi(total_str);
852
853         prev_row = row;
854
855         folderview_update_node(folderview, row);
856 }
857
858 void folderview_append_item(FolderItem *item)
859 {
860         GList *list;
861         
862         g_return_if_fail(item != NULL);
863         g_return_if_fail(item->folder != NULL);
864         if (folder_item_parent(item)) return;
865
866         for (list = folderview_list; list != NULL; list = list->next) {
867                 FolderView *folderview = (FolderView *)list->data;
868                 GtkCTree *ctree = GTK_CTREE(folderview->ctree);
869                 GtkCTreeNode *node, *child;
870                 gint *col_pos = folderview->col_pos;
871
872                 node = gtk_ctree_find_by_row_data(ctree, NULL, 
873                                                   folder_item_parent(item));
874                 if (node) {
875                         child = gtk_ctree_find_by_row_data(ctree, node, item);
876                         if (!child) {
877                                 gchar *text[N_FOLDER_COLS] =
878                                         {NULL, "0", "0", "0"};
879
880                                 gtk_clist_freeze(GTK_CLIST(ctree));
881
882                                 text[col_pos[F_COL_FOLDER]] = item->name;
883                                 child = gtk_ctree_insert_node
884                                         (ctree, node, NULL, text,
885                                          FOLDER_SPACING,
886                                          folderxpm, folderxpmmask,
887                                          folderopenxpm, folderopenxpmmask,
888                                          FALSE, FALSE);
889                                 gtk_ctree_node_set_row_data(ctree, child, item);
890                                 gtk_ctree_expand(ctree, node);
891                                 folderview_update_node(folderview, child);
892                                 folderview_sort_folders(folderview, node,
893                                                         item->folder);
894
895                                 gtk_clist_thaw(GTK_CLIST(ctree));
896                         }
897                 }
898         }
899 }
900
901 static void folderview_set_folders(FolderView *folderview)
902 {
903         GList *list;
904
905         list = folder_get_list();
906
907         for (; list != NULL; list = list->next)
908                 folderview_append_folder(folderview, FOLDER(list->data));
909 }
910
911 static void folderview_scan_tree_func(Folder *folder, FolderItem *item,
912                                       gpointer data)
913 {
914         GList *list;
915
916         for (list = folderview_list; list != NULL; list = list->next) {
917                 FolderView *folderview = (FolderView *)list->data;
918                 MainWindow *mainwin = folderview->mainwin;
919                 gchar *str;
920
921                 if (item->path)
922                         str = g_strdup_printf(_("Scanning folder %s%c%s ..."),
923                                               item->folder->name, G_DIR_SEPARATOR,
924                                               item->path);
925                 else
926                         str = g_strdup_printf(_("Scanning folder %s ..."),
927                                               item->folder->name);
928
929                 STATUSBAR_PUSH(mainwin, str);
930                 STATUSBAR_POP(mainwin);
931                 g_free(str);
932         }
933 }
934
935 static GtkWidget *label_window_create(const gchar *str)
936 {
937         GtkWidget *window;
938         GtkWidget *label;
939
940         window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
941         gtk_widget_set_size_request(window, 380, 60);
942         gtk_container_set_border_width(GTK_CONTAINER(window), 8);
943         gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);
944         gtk_window_set_title(GTK_WINDOW(window), str);
945         gtk_window_set_modal(GTK_WINDOW(window), TRUE);
946         gtk_window_set_resizable(GTK_WINDOW(window), FALSE);
947         manage_window_set_transient(GTK_WINDOW(window));
948
949         label = gtk_label_new(str);
950         gtk_container_add(GTK_CONTAINER(window), label);
951         gtk_widget_show(label);
952
953         gtk_widget_show_now(window);
954
955         return window;
956 }
957
958 void folderview_rescan_tree(Folder *folder, gboolean rebuild)
959 {
960         GtkWidget *window;
961
962         g_return_if_fail(folder != NULL);
963
964         if (!folder->klass->scan_tree) return;
965
966         if (rebuild && 
967             alertpanel_full(_("Rebuild folder tree"), 
968                          _("Rebuilding the folder tree will remove "
969                            "local caches. Do you want to continue?"),
970                          GTK_STOCK_YES, GTK_STOCK_NO, NULL, FALSE,
971                          NULL, ALERT_WARNING, G_ALERTALTERNATE) 
972                 != G_ALERTDEFAULT) {
973                 return;
974         }
975
976         inc_lock();
977         if (rebuild)
978                 window = label_window_create(_("Rebuilding folder tree..."));
979         else 
980                 window = label_window_create(_("Scanning folder tree..."));
981
982         folder_set_ui_func(folder, folderview_scan_tree_func, NULL);
983         folder_scan_tree(folder, rebuild);
984         folder_set_ui_func(folder, NULL, NULL);
985
986         folderview_set_all();
987
988         gtk_widget_destroy(window);
989         inc_unlock();
990 }
991
992 /** folderview_check_new()
993  *  Scan and update the folder and return the 
994  *  count the number of new messages since last check. 
995  *  \param folder the folder to check for new messages
996  *  \return the number of new messages since last check
997  */
998 gint folderview_check_new(Folder *folder)
999 {
1000         GList *list;
1001         FolderItem *item;
1002         FolderView *folderview;
1003         GtkCTree *ctree;
1004         GtkCTreeNode *node;
1005         gint new_msgs = 0;
1006         gint former_new_msgs = 0;
1007         gint former_new = 0;
1008
1009         for (list = folderview_list; list != NULL; list = list->next) {
1010                 folderview = (FolderView *)list->data;
1011                 ctree = GTK_CTREE(folderview->ctree);
1012
1013                 inc_lock();
1014                 main_window_lock(folderview->mainwin);
1015
1016                 for (node = GTK_CTREE_NODE(GTK_CLIST(ctree)->row_list);
1017                      node != NULL; node = gtkut_ctree_node_next(ctree, node)) {
1018                         item = gtk_ctree_node_get_row_data(ctree, node);
1019                         if (!item || !item->path || !item->folder) continue;
1020                         if (item->no_select) continue;
1021                         if (folder && folder != item->folder) continue;
1022                         if (!folder && !FOLDER_IS_LOCAL(item->folder)) continue;
1023                         if (!item->prefs->newmailcheck) continue;
1024
1025                         folderview_scan_tree_func(item->folder, item, NULL);
1026                         former_new = item->new_msgs;
1027
1028                         if (folder_item_scan(item) < 0) {
1029                                 summaryview_unlock(folderview->summaryview, item);
1030                                 if (folder && !FOLDER_IS_LOCAL(folder))
1031                                         break;
1032                         }
1033
1034                         folderview_update_node(folderview, node);
1035                         new_msgs += item->new_msgs;
1036                         former_new_msgs += former_new;
1037                 }
1038
1039                 main_window_unlock(folderview->mainwin);
1040                 inc_unlock();
1041         }
1042
1043         folder_write_list();
1044         /* Number of new messages since last check is the just the difference 
1045          * between former_new_msgs and new_msgs. If new_msgs is less than
1046          * former_new_msgs, that would mean another session accessed the folder
1047          * and the result is not well defined.
1048          */
1049         new_msgs = (former_new_msgs < new_msgs ? new_msgs - former_new_msgs : 0);
1050         return new_msgs;
1051 }
1052
1053 void folderview_check_new_all(void)
1054 {
1055         GList *list;
1056         GtkWidget *window;
1057         FolderView *folderview;
1058
1059         folderview = (FolderView *)folderview_list->data;
1060
1061         inc_lock();
1062         main_window_lock(folderview->mainwin);
1063         window = label_window_create
1064                 (_("Checking for new messages in all folders..."));
1065
1066         list = folder_get_list();
1067         for (; list != NULL; list = list->next) {
1068                 Folder *folder = list->data;
1069
1070                 folderview_check_new(folder);
1071         }
1072
1073         folder_write_list();
1074         folderview_set_all();
1075
1076         gtk_widget_destroy(window);
1077         main_window_unlock(folderview->mainwin);
1078         inc_unlock();
1079 }
1080
1081 static gboolean folderview_have_new_children_sub(FolderView *folderview,
1082                                                  FolderItem *item,
1083                                                  gboolean in_sub)
1084 {
1085         GNode *node = NULL;
1086         
1087         if (!item || !item->folder || !item->folder->node)
1088                 return FALSE;
1089                 
1090         node = item->folder->node;
1091         
1092         node = g_node_find(node, G_PRE_ORDER, G_TRAVERSE_ALL, item);
1093         node = node->children;
1094
1095         if (in_sub &&
1096             (item->new_msgs > 0 ||
1097             (folder_has_parent_of_type(item, F_QUEUE) && item->total_msgs > 0))) {
1098                 return TRUE;
1099         }
1100
1101         while (node != NULL) {
1102                 if (node && node->data) {
1103                         FolderItem *next_item = (FolderItem*) node->data;
1104                         node = node->next;
1105                         if (folderview_have_new_children_sub(folderview, 
1106                                                              next_item, TRUE))
1107                                 return TRUE;
1108                 }
1109         }
1110
1111         return FALSE;
1112 }
1113
1114 static gboolean folderview_have_new_children(FolderView *folderview,
1115                                              FolderItem *item)
1116 {
1117         return folderview_have_new_children_sub(folderview, item, FALSE);
1118 }
1119
1120 static gboolean folderview_have_unread_children_sub(FolderView *folderview,
1121                                                     FolderItem *item, 
1122                                                     gboolean in_sub)
1123 {
1124         GNode *node = NULL;
1125         
1126         if (!item || !item->folder || !item->folder->node)
1127                 return FALSE;
1128         
1129         node = item->folder->node;
1130         
1131         node = g_node_find(node, G_PRE_ORDER, G_TRAVERSE_ALL, item);
1132         node = node->children;
1133
1134         if (in_sub &&
1135             (item->unread_msgs > 0 ||
1136             (folder_has_parent_of_type(item, F_QUEUE) && item->total_msgs > 0))) {
1137                 return TRUE;
1138         }
1139
1140         while (node != NULL) {
1141                 if (node && node->data) {
1142                         FolderItem *next_item = (FolderItem*) node->data;
1143                         node = node->next;
1144                         if (folderview_have_unread_children_sub(folderview, 
1145                                                                 next_item, 
1146                                                                 TRUE))
1147                                 return TRUE;
1148                 }
1149         }
1150
1151         return FALSE;
1152 }
1153
1154 static gboolean folderview_have_unread_children(FolderView *folderview,
1155                                                 FolderItem *item)
1156 {
1157         return folderview_have_unread_children_sub(folderview, item, FALSE);
1158 }
1159
1160 static gboolean folderview_have_matching_children_sub(FolderView *folderview,
1161                                                       FolderItem *item,
1162                                                       gboolean in_sub)
1163 {
1164         GNode *node = NULL;
1165
1166         if (!item || !item->folder || !item->folder->node)
1167                 return FALSE;
1168
1169         node = item->folder->node;
1170         
1171         node = g_node_find(node, G_PRE_ORDER, G_TRAVERSE_ALL, item);
1172         node = node->children;
1173
1174         if (in_sub && item->search_match){
1175                 return TRUE;
1176         }
1177
1178         while (node != NULL) {
1179                 if (node && node->data) {
1180                         FolderItem *next_item = (FolderItem*) node->data;
1181                         node = node->next;
1182                         if (folderview_have_matching_children_sub(folderview, 
1183                                                                   next_item, 
1184                                                                   TRUE))
1185                                 return TRUE;
1186                 }
1187         }
1188
1189         return FALSE;
1190 }
1191
1192 static gboolean folderview_have_matching_children(FolderView *folderview,
1193                                                   FolderItem *item)
1194 {
1195         return folderview_have_matching_children_sub(folderview, item, FALSE);
1196 }
1197
1198 static void folderview_update_node(FolderView *folderview, GtkCTreeNode *node)
1199 {
1200         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
1201         GtkStyle *style = NULL;
1202         GtkStyle *color_style = NULL;
1203         FolderItem *item;
1204         GdkPixmap *xpm, *openxpm;
1205         GdkBitmap *mask, *openmask;
1206         static GdkPixmap *searchicon;
1207         static GdkBitmap *searchmask;
1208         gboolean mark = FALSE;
1209         gchar *name;
1210         gchar *str;
1211         gboolean add_unread_mark;
1212         gboolean add_sub_match_mark;
1213         gboolean use_bold, use_color;
1214         gint *col_pos = folderview->col_pos;
1215         SpecialFolderItemType stype;
1216         
1217         item = gtk_ctree_node_get_row_data(ctree, node);
1218         g_return_if_fail(item != NULL);
1219
1220         mark = (item->marked_msgs != 0);
1221
1222         stype = item->stype;
1223         if (stype == F_NORMAL) {
1224                 if (folder_has_parent_of_type(item, F_TRASH))
1225                         stype = F_TRASH;
1226                 else if (folder_has_parent_of_type(item, F_DRAFT))
1227                         stype = F_DRAFT;
1228                 else if (folder_has_parent_of_type(item, F_OUTBOX))
1229                         stype = F_OUTBOX;
1230                 else if (folder_has_parent_of_type(item, F_QUEUE))
1231                         stype = F_QUEUE;
1232         }
1233         switch (stype) {
1234         case F_INBOX:
1235                 if (item->hide_read_msgs) {
1236                         xpm = mark?m_inboxhrmxpm:inboxhrmxpm;
1237                         mask = mark?m_inboxhrmxpmmask:inboxhrmxpmmask;
1238                         openxpm = mark?m_inboxopenhrmxpm:inboxopenhrmxpm;
1239                         openmask = mark?m_inboxopenhrmxpmmask:inboxopenhrmxpmmask;
1240                 } else {
1241                         xpm = mark?m_inboxxpm:inboxxpm;
1242                         mask = mark?m_inboxxpmmask:inboxxpmmask;
1243                         openxpm = mark?m_inboxopenxpm:inboxopenxpm;
1244                         openmask = mark?m_inboxopenxpmmask:inboxopenxpmmask;
1245                 }
1246                 break;
1247         case F_OUTBOX:
1248                 if (item->hide_read_msgs) {
1249                         xpm = mark?m_outboxhrmxpm:outboxhrmxpm;
1250                         mask = mark?m_outboxhrmxpmmask:outboxhrmxpmmask;
1251                         openxpm = mark?m_outboxopenhrmxpm:outboxopenhrmxpm;
1252                         openmask = mark?m_outboxopenhrmxpmmask:outboxopenhrmxpmmask;
1253                 } else {
1254                         xpm = mark?m_outboxxpm:outboxxpm;
1255                         mask = mark?m_outboxxpmmask:outboxxpmmask;
1256                         openxpm = mark?m_outboxopenxpm:outboxopenxpm;
1257                         openmask = mark?m_outboxopenxpmmask:outboxopenxpmmask;
1258                 }
1259                 break;
1260         case F_QUEUE:
1261                 if (item->hide_read_msgs) {
1262                         xpm = mark?m_queuehrmxpm:queuehrmxpm;
1263                         mask = mark?m_queuehrmxpmmask:queuehrmxpmmask;
1264                         openxpm = mark?m_queueopenhrmxpm:queueopenhrmxpm;
1265                         openmask = mark?m_queueopenhrmxpmmask:queueopenhrmxpmmask;
1266                 } else {
1267                         xpm = mark?m_queuexpm:queuexpm;
1268                         mask = mark?m_queuexpmmask:queuexpmmask;
1269                         openxpm = mark?m_queueopenxpm:queueopenxpm;
1270                         openmask = mark?m_queueopenxpmmask:queueopenxpmmask;
1271                 }
1272                 break;
1273         case F_TRASH:
1274                 if (item->hide_read_msgs) {
1275                         xpm = mark?m_trashhrmxpm:trashhrmxpm;
1276                         mask = mark?m_trashhrmxpmmask:trashhrmxpmmask;
1277                         openxpm = mark?m_trashopenhrmxpm:trashopenhrmxpm;
1278                         openmask = mark?m_trashopenhrmxpmmask:trashopenhrmxpmmask;
1279                 } else {
1280                         xpm = mark?m_trashxpm:trashxpm;
1281                         mask = mark?m_trashxpmmask:trashxpmmask;
1282                         openxpm = mark?m_trashopenxpm:trashopenxpm;
1283                         openmask = mark?m_trashopenxpmmask:trashopenxpmmask;
1284                 }
1285                 break;
1286         case F_DRAFT:
1287                 xpm = mark?m_draftsxpm:draftsxpm;
1288                 mask = mark?m_draftsxpmmask:draftsxpmmask;
1289                 openxpm = mark?m_draftsopenxpm:draftsopenxpm;
1290                 openmask = mark?m_draftsopenxpmmask:draftsopenxpmmask;
1291                 break;
1292         default:
1293                 if (item->hide_read_msgs) {
1294                         xpm = mark?m_folderhrmxpm:folderhrmxpm;
1295                         mask = mark?m_folderhrmxpmmask:folderhrmxpmmask;
1296                         openxpm = mark?m_folderopenhrmxpm:folderopenhrmxpm;
1297                         openmask = mark?m_folderopenhrmxpmmask:folderopenhrmxpmmask;
1298                 } else {
1299                         xpm = mark?m_folderxpm:folderxpm;
1300                         mask = mark?m_folderxpmmask:folderxpmmask;
1301                         openxpm = mark?m_folderopenxpm:folderopenxpm;
1302                         openmask = mark?m_folderopenxpmmask:folderopenxpmmask;
1303                 }
1304         }
1305         
1306         if (item->no_select) {
1307                 xpm = openxpm = noselectxpm;
1308                 mask = openmask = noselectxpmmask;
1309         }
1310
1311         name = folder_item_get_name(item);
1312
1313         if (!GTK_CTREE_ROW(node)->expanded) {
1314                 add_unread_mark = folderview_have_unread_children(
1315                                         folderview, item);
1316                 add_sub_match_mark = folderview_have_matching_children(
1317                                         folderview, item);
1318         } else {
1319                 add_unread_mark = FALSE;
1320                 add_sub_match_mark = FALSE;
1321         }
1322
1323         if (item->search_match) {
1324                 if (!searchicon) {
1325                         stock_pixmap_gdk(folderview->ctree, STOCK_PIXMAP_QUICKSEARCH,
1326                          &searchicon, &searchmask);
1327                 }
1328                 xpm = openxpm = searchicon;
1329                 mask = openmask = searchmask;
1330         }
1331
1332         if (folder_has_parent_of_type(item, F_QUEUE) && item->total_msgs > 0 &&
1333             prefs_common.display_folder_unread) {
1334                 str = g_strdup_printf("%s (%d%s)", name, item->total_msgs,
1335                                       add_unread_mark ? "+" : "");
1336                 gtk_ctree_set_node_info(ctree, node, str, FOLDER_SPACING,
1337                                         xpm, mask, openxpm, openmask,
1338                                         FALSE, GTK_CTREE_ROW(node)->expanded);
1339                 g_free(str);
1340         } else if (((item->unread_msgs > 0 || add_unread_mark) &&
1341                     prefs_common.display_folder_unread) 
1342                    || add_sub_match_mark) {
1343
1344                 if (item->unread_msgs > 0)
1345                         str = g_strdup_printf("%s (%d%s%s)", name, item->unread_msgs,
1346                                               add_unread_mark || add_sub_match_mark ? "+" : "", 
1347                                               item->unreadmarked_msgs > 0 ? "!":"");
1348                 else
1349                         str = g_strdup_printf("%s (+)", name);
1350                 gtk_ctree_set_node_info(ctree, node, str, FOLDER_SPACING,
1351                                         xpm, mask, openxpm, openmask,
1352                                         FALSE, GTK_CTREE_ROW(node)->expanded);
1353                 g_free(str);
1354         } else {
1355                 str = g_strdup_printf("%s%s", name, 
1356                                       item->unreadmarked_msgs > 0 ? " (!)":"");
1357         
1358                 gtk_ctree_set_node_info(ctree, node, str, FOLDER_SPACING,
1359                                         xpm, mask, openxpm, openmask,
1360                                         FALSE, GTK_CTREE_ROW(node)->expanded);
1361                 g_free(str);
1362         }
1363         g_free(name);
1364
1365         if (!folder_item_parent(item)) {
1366                 gtk_ctree_node_set_text(ctree, node, col_pos[F_COL_NEW],    "-");
1367                 gtk_ctree_node_set_text(ctree, node, col_pos[F_COL_UNREAD], "-");
1368                 gtk_ctree_node_set_text(ctree, node, col_pos[F_COL_TOTAL],  "-");
1369         } else {
1370                 gtk_ctree_node_set_text(ctree, node, col_pos[F_COL_NEW],    itos(item->new_msgs));
1371                 gtk_ctree_node_set_text(ctree, node, col_pos[F_COL_UNREAD], itos(item->unread_msgs));
1372                 gtk_ctree_node_set_text(ctree, node, col_pos[F_COL_TOTAL],  itos(item->total_msgs));
1373         }
1374
1375         if (folder_has_parent_of_type(item, F_OUTBOX) ||
1376             folder_has_parent_of_type(item, F_DRAFT) ||
1377             folder_has_parent_of_type(item, F_TRASH)) {
1378                 use_bold = use_color = FALSE;
1379         } else if (folder_has_parent_of_type(item, F_QUEUE)) {
1380                 /* highlight queue folder if there are any messages */
1381                 use_bold = use_color = (item->total_msgs > 0);
1382         } else {
1383                 /* if unread messages exist, print with bold font */
1384                 use_bold = (item->unread_msgs > 0|| item->new_msgs > 0) 
1385                                 || add_unread_mark;
1386                 /* if new messages exist, print with colored letter */
1387                 use_color =
1388                         (item->new_msgs > 0) ||
1389                         (add_unread_mark &&
1390                          folderview_have_new_children(folderview, item));       
1391         }
1392
1393         gtk_ctree_node_set_foreground(ctree, node, NULL);
1394
1395         if (use_bold) {
1396                 if (item->prefs->color > 0 && !use_color) {
1397                         GdkColor gdk_color;
1398
1399                         gtkut_convert_int_to_gdk_color(item->prefs->color, &gdk_color);
1400                         color_style = gtk_style_copy(bold_style);
1401                         color_style->fg[GTK_STATE_NORMAL] = gdk_color;
1402                         style = color_style;
1403                 } else if (use_color)
1404                         style = bold_color_style;
1405                 else
1406                         style = bold_style;
1407                 if (item->op_count > 0) {
1408                         style = bold_tgtfold_style;
1409                 }
1410         } else if (use_color) {
1411                 style = normal_color_style;
1412                 gtk_ctree_node_set_foreground(ctree, node,
1413                                               &folderview->color_new);
1414         } else if (item->op_count > 0) {
1415                 style = bold_tgtfold_style;
1416         } else if (item->prefs->color > 0) {
1417                 GdkColor gdk_color;
1418                 gtkut_convert_int_to_gdk_color(item->prefs->color, &gdk_color);
1419                 color_style = gtk_style_copy(normal_style);
1420                 color_style->fg[GTK_STATE_NORMAL] = gdk_color;
1421                 style = color_style;
1422         } else {
1423                 style = normal_style;
1424         }
1425
1426         gtk_ctree_node_set_row_style(ctree, node, style);
1427
1428         if ((node = gtkut_ctree_find_collapsed_parent(ctree, node)) != NULL)
1429                 folderview_update_node(folderview, node);
1430 }
1431
1432 #if !CLAWS /* keep it here for syncs */
1433 void folderview_update_item(FolderItem *item, gboolean update_summary)
1434 {
1435         GList *list;
1436         FolderView *folderview;
1437         GtkCTree *ctree;
1438         GtkCTreeNode *node;
1439
1440         g_return_if_fail(item != NULL);
1441
1442         for (list = folderview_list; list != NULL; list = list->next) {
1443                 folderview = (FolderView *)list->data;
1444                 ctree = GTK_CTREE(folderview->ctree);
1445
1446                 node = gtk_ctree_find_by_row_data(ctree, NULL, item);
1447                 if (node) {
1448                         folderview_update_node(folderview, node);
1449                         if (update_summary && folderview->opened == node)
1450                                 summary_show(folderview->summaryview,
1451                                              item, FALSE);
1452                 }
1453         }
1454 }
1455 #endif
1456
1457 void folderview_update_search_icon(FolderItem *item, gboolean matches)
1458 {
1459         GList *list;
1460         FolderView *folderview;
1461         GtkCTree *ctree;
1462         GtkCTreeNode *node;
1463
1464         g_return_if_fail(item != NULL);
1465
1466         for (list = folderview_list; list != NULL; list = list->next) {
1467                 folderview = (FolderView *)list->data;
1468                 ctree = GTK_CTREE(folderview->ctree);
1469
1470                 node = gtk_ctree_find_by_row_data(ctree, NULL, item);
1471                 if (node) {
1472                         item->search_match = matches;
1473                         folderview_update_node(folderview, node);
1474                 }
1475         }
1476 }
1477
1478 gboolean folderview_update_item_claws(gpointer source, gpointer data)
1479 {
1480         FolderItemUpdateData *update_info = (FolderItemUpdateData *)source;
1481         FolderView *folderview = (FolderView *)data;
1482         GtkCTree *ctree;
1483         GtkCTreeNode *node;
1484         g_return_val_if_fail(update_info != NULL, TRUE);
1485         g_return_val_if_fail(update_info->item != NULL, TRUE);
1486         g_return_val_if_fail(folderview != NULL, FALSE);
1487
1488         ctree = GTK_CTREE(folderview->ctree);
1489
1490         node = gtk_ctree_find_by_row_data(ctree, NULL, update_info->item);
1491         if (node) {
1492                 if (update_info->update_flags & (F_ITEM_UPDATE_MSGCNT | F_ITEM_UPDATE_NAME))
1493                         folderview_update_node(folderview, node);
1494                 if ((update_info->update_flags & F_ITEM_UPDATE_CONTENT) && (folderview->opened == node))
1495                         summary_show(folderview->summaryview, update_info->item);
1496         }
1497         
1498         return FALSE;
1499 }
1500
1501 static void folderview_update_item_foreach_func(gpointer key, gpointer val,
1502                                                 gpointer data)
1503 {
1504         /* CLAWS: share this joy with other hook functions ... */
1505         folder_item_update((FolderItem *)key, 
1506                            (FolderItemUpdateFlags)GPOINTER_TO_INT(data));
1507 }
1508
1509 void folderview_update_item_foreach(GHashTable *table, gboolean update_summary)
1510 {
1511         GList *list;
1512         FolderItemUpdateFlags flags;
1513         
1514         flags = update_summary ?  F_ITEM_UPDATE_CONTENT | F_ITEM_UPDATE_MSGCNT
1515                 : 0;
1516         for (list = folderview_list; list != NULL; list = list->next)
1517                 g_hash_table_foreach(table, folderview_update_item_foreach_func, 
1518                                      GINT_TO_POINTER(flags));
1519 }
1520
1521 static gboolean folderview_gnode_func(GtkCTree *ctree, guint depth,
1522                                       GNode *gnode, GtkCTreeNode *cnode,
1523                                       gpointer data)
1524 {
1525         FolderView *folderview = (FolderView *)data;
1526         FolderItem *item = FOLDER_ITEM(gnode->data);
1527
1528         g_return_val_if_fail(item != NULL, FALSE);
1529
1530         gtk_ctree_node_set_row_data(ctree, cnode, item);
1531         folderview_update_node(folderview, cnode);
1532
1533         return TRUE;
1534 }
1535
1536 static void folderview_expand_func(GtkCTree *ctree, GtkCTreeNode *node,
1537                                    gpointer data)
1538 {
1539         FolderView *folderview = (FolderView *)data;
1540         FolderItem *item;
1541
1542         if (GTK_CTREE_ROW(node)->children) {
1543                 item = gtk_ctree_node_get_row_data(ctree, node);
1544                 g_return_if_fail(item != NULL);
1545
1546                 if (!item->collapsed)
1547                         gtk_ctree_expand(ctree, node);
1548                 else
1549                         folderview_update_node(folderview, node);
1550         }
1551 }
1552
1553 static void set_special_folder(GtkCTree *ctree, FolderItem *item,
1554                                GtkCTreeNode *root, GtkCTreeNode **prev)
1555 {
1556         if (item) {
1557                 GtkCTreeNode *node, *parent, *sibling;
1558
1559                 node = gtk_ctree_find_by_row_data(ctree, root, item);
1560                 if (!node)
1561                         g_warning("%s not found.\n", item->path);
1562                 else {
1563                         parent = GTK_CTREE_ROW(node)->parent;
1564                         if (*prev && parent == GTK_CTREE_ROW(*prev)->parent)
1565                                 sibling = GTK_CTREE_ROW(*prev)->sibling;
1566                         else
1567                                 sibling = GTK_CTREE_ROW(parent)->children;
1568                         while (sibling) {
1569                                 FolderItem *tmp;
1570
1571                                 tmp = gtk_ctree_node_get_row_data
1572                                         (ctree, sibling);
1573                                 if (tmp->stype != F_NORMAL)
1574                                         sibling = GTK_CTREE_ROW(sibling)->sibling;
1575                                 else
1576                                         break;
1577                         }
1578                         if (node != sibling)
1579                                 gtk_ctree_move(ctree, node, parent, sibling);
1580                 }
1581
1582                 *prev = node;
1583         }
1584 }
1585
1586 static void folderview_sort_folders(FolderView *folderview, GtkCTreeNode *root,
1587                                     Folder *folder)
1588 {
1589         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
1590         GtkCTreeNode *prev = NULL;
1591
1592         gtk_sctree_sort_recursive(ctree, root);
1593
1594         if (root && GTK_CTREE_ROW(root)->parent) return;
1595
1596         set_special_folder(ctree, folder->inbox, root, &prev);
1597         set_special_folder(ctree, folder->outbox, root, &prev);
1598         set_special_folder(ctree, folder->draft, root, &prev);
1599         set_special_folder(ctree, folder->queue, root, &prev);
1600         set_special_folder(ctree, folder->trash, root, &prev);
1601 }
1602
1603 static void folderview_append_folder(FolderView *folderview, Folder *folder)
1604 {
1605         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
1606         GtkCTreeNode *root;
1607
1608         g_return_if_fail(folder != NULL);
1609
1610         root = gtk_ctree_insert_gnode(ctree, NULL, NULL, folder->node,
1611                                       folderview_gnode_func, folderview);
1612         gtk_ctree_pre_recursive(ctree, root, folderview_expand_func,
1613                                 folderview);
1614         folderview_sort_folders(folderview, root, folder);
1615 }
1616
1617 /* callback functions */
1618
1619 static gboolean folderview_button_pressed(GtkWidget *ctree, GdkEventButton *event,
1620                                           FolderView *folderview)
1621 {
1622         GtkCList *clist = GTK_CLIST(ctree);
1623         gint prev_row = -1, row = -1, column = -1;
1624         FolderItem *item;
1625         Folder *folder;
1626         FolderViewPopup *fpopup;
1627         GtkItemFactory *fpopup_factory;
1628         GtkWidget *popup;
1629         FolderItem *special_trash = NULL;
1630         PrefsAccount *ac;
1631
1632         if (!event) return FALSE;
1633
1634         if (event->button == 1) {
1635                 folderview->open_folder = TRUE;
1636
1637                 if (event->type == GDK_2BUTTON_PRESS) {
1638                         if (clist->selection) {
1639                                 GtkCTreeNode *node;
1640
1641                                 node = GTK_CTREE_NODE(clist->selection->data);
1642                                 if (node)
1643                                         gtk_ctree_toggle_expansion(
1644                                                 GTK_CTREE(ctree),
1645                                                 node);
1646                         }
1647                 }
1648                 return FALSE;
1649         }
1650
1651         if (event->button == 2 || event->button == 3) {
1652                 /* right clicked */
1653                 if (clist->selection) {
1654                         GtkCTreeNode *node;
1655
1656                         node = GTK_CTREE_NODE(clist->selection->data);
1657                         if (node)
1658                                 prev_row = gtkut_ctree_get_nth_from_node
1659                                         (GTK_CTREE(ctree), node);
1660                 }
1661
1662                 if (!gtk_clist_get_selection_info(clist, event->x, event->y,
1663                                                   &row, &column))
1664                         return FALSE;
1665                 if (prev_row != row) {
1666                         gtk_clist_unselect_all(clist);
1667                         if (event->button == 2)
1668                                 folderview_select_node
1669                                         (folderview,
1670                                          gtk_ctree_node_nth(GTK_CTREE(ctree),
1671                                                             row));
1672                         else
1673                                 gtk_clist_select_row(clist, row, column);
1674                 }
1675         }
1676
1677         if (event->button != 3) return FALSE;
1678
1679         item = gtk_clist_get_row_data(clist, row);
1680         g_return_val_if_fail(item != NULL, FALSE);
1681         g_return_val_if_fail(item->folder != NULL, FALSE);
1682         folder = item->folder;
1683
1684         fpopup = g_hash_table_lookup(folderview_popups, folder->klass->idstr);
1685         if (fpopup != NULL)
1686                 fpopup_factory = g_hash_table_lookup(folderview->popups, folder->klass->idstr);
1687         else {
1688                 fpopup = g_hash_table_lookup(folderview_popups, "common");
1689                 fpopup_factory = g_hash_table_lookup(folderview->popups, "common");
1690         }
1691
1692         if (fpopup->set_sensitivity != NULL)
1693                 fpopup->set_sensitivity(fpopup_factory, item);
1694
1695         if (NULL != (ac = account_find_from_item(item)))
1696                 special_trash = account_get_special_folder(ac, F_TRASH);
1697
1698         if ((item == folder->trash || item == special_trash
1699              || folder_has_parent_of_type(item, F_TRASH)) &&
1700             gtk_item_factory_get_item(fpopup_factory, "/Empty trash...") == NULL) {
1701                 gtk_item_factory_create_item(fpopup_factory, &folder_view_trash_popup_entries[0], folderview, 1);
1702                 gtk_item_factory_create_item(fpopup_factory, &folder_view_trash_popup_entries[1], folderview, 1);
1703         } else if (item != folder->trash && (special_trash == NULL || item != special_trash)
1704                 && !folder_has_parent_of_type(item, F_TRASH)) {
1705                 gtk_item_factory_delete_entry(fpopup_factory, &folder_view_trash_popup_entries[0]);
1706                 gtk_item_factory_delete_entry(fpopup_factory, &folder_view_trash_popup_entries[1]);
1707         }
1708         
1709 #define SET_SENS(name, sens) \
1710         menu_set_sensitive(fpopup_factory, name, sens)
1711
1712         SET_SENS("/Mark all read", item->unread_msgs >= 1);
1713         SET_SENS("/Search folder...", item->total_msgs >= 1 && 
1714                  folderview->selected == folderview->opened);
1715         SET_SENS("/Properties...", item->node->parent != NULL);
1716         SET_SENS("/Processing...", item->node->parent != NULL);
1717         if (item == folder->trash || item == special_trash
1718             || folder_has_parent_of_type(item, F_TRASH)) {
1719                 GSList *msglist = folder_item_get_msg_list(item);
1720                 SET_SENS("/Empty trash...", msglist != NULL);
1721                 procmsg_msg_list_free(msglist);
1722         }
1723 #undef SET_SENS
1724
1725         popup = gtk_item_factory_get_widget(fpopup_factory, fpopup->path);
1726         gtk_menu_popup(GTK_MENU(popup), NULL, NULL, NULL, NULL,
1727                        event->button, event->time);
1728
1729         return FALSE;
1730 }
1731
1732 static gboolean folderview_button_released(GtkWidget *ctree, GdkEventButton *event,
1733                                            FolderView *folderview)
1734 {
1735         if (!event) return FALSE;
1736
1737         if (event->button == 1 && folderview->open_folder == FALSE &&
1738             folderview->opened != NULL) {
1739                 gtkut_ctree_set_focus_row(GTK_CTREE(ctree),
1740                                           folderview->opened);
1741                 gtk_ctree_select(GTK_CTREE(ctree), folderview->opened);
1742         }
1743
1744         return FALSE;
1745 }
1746
1747 static gboolean folderview_key_pressed(GtkWidget *widget, GdkEventKey *event,
1748                                        FolderView *folderview)
1749 {
1750         if (!event) return FALSE;
1751
1752         if (quicksearch_has_focus(folderview->summaryview->quicksearch))
1753                 return FALSE;
1754
1755         switch (event->keyval) {
1756         case GDK_Return:
1757                 if (folderview->selected) {
1758                         folderview_select_node(folderview,
1759                                                folderview->selected);
1760                 }
1761                 break;
1762         case GDK_space:
1763                 if (folderview->selected) {
1764                         if (folderview->opened == folderview->selected &&
1765                             (!folderview->summaryview->folder_item ||
1766                              folderview->summaryview->folder_item->total_msgs == 0))
1767                                 folderview_select_next_unread(folderview);
1768                         else
1769                                 folderview_select_node(folderview,
1770                                                        folderview->selected);
1771                 }
1772                 break;
1773         default:
1774                 break;
1775         }
1776
1777         return FALSE;
1778 }
1779
1780 gboolean folderview_process_open(gpointer data)
1781 {
1782         FolderView *folderview = (FolderView *)data;
1783         FolderItem *item = NULL;
1784         
1785         if (!folderview || !folderview->opened) {
1786                 debug_print("opened NULL\n");
1787                 return FALSE;
1788         }
1789         item = gtk_ctree_node_get_row_data(
1790                 GTK_CTREE(folderview->ctree), 
1791                 folderview->opened);
1792         
1793         if (!item)
1794                 return FALSE;
1795
1796         folder_item_update_freeze();
1797         folder_item_process_open(item);
1798         folder_item_update_thaw();
1799         
1800         return FALSE;   
1801 }
1802
1803 static void folderview_selected(GtkCTree *ctree, GtkCTreeNode *row,
1804                                 gint column, FolderView *folderview)
1805 {
1806         static gboolean can_select = TRUE;      /* exclusive lock */
1807         gboolean opened;
1808         FolderItem *item;
1809         gchar *buf;
1810
1811         folderview->selected = row;
1812
1813         if (folderview->opened == row) {
1814                 folderview->open_folder = FALSE;
1815                 return;
1816         }
1817         
1818         if (!can_select || summary_is_locked(folderview->summaryview)) {
1819                 gtkut_ctree_set_focus_row(ctree, folderview->opened);
1820                 gtk_ctree_select(ctree, folderview->opened);
1821                 return;
1822         }
1823
1824         if (!folderview->open_folder) return;
1825
1826         item = gtk_ctree_node_get_row_data(ctree, row);
1827         if (!item || item->no_select) return;
1828
1829         can_select = FALSE;
1830
1831         /* Save cache for old folder */
1832         /* We don't want to lose all caches if sylpheed crashed */
1833         if (folderview->opened) {
1834                 FolderItem *olditem;
1835                 
1836                 olditem = gtk_ctree_node_get_row_data(ctree, folderview->opened);
1837                 if (olditem) {
1838                         /* will be null if we just moved the previously opened folder */
1839                         summary_save_prefs_to_folderitem(folderview->summaryview, olditem);
1840                         summary_show(folderview->summaryview, NULL);
1841                         folder_item_close(olditem);
1842                 }
1843         }
1844
1845         /* CLAWS: set compose button type: news folder items 
1846          * always have a news folder as parent */
1847         if (item->folder) 
1848                 toolbar_set_compose_button
1849                         (folderview->mainwin->toolbar,
1850                          FOLDER_TYPE(item->folder) == F_NEWS ? 
1851                          COMPOSEBUTTON_NEWS : COMPOSEBUTTON_MAIL);
1852
1853         if (item->path)
1854                 debug_print("Folder %s is selected\n", item->path);
1855
1856         if (!GTK_CTREE_ROW(row)->children)
1857                 gtk_ctree_expand(ctree, row);
1858         if (folderview->opened &&
1859             !GTK_CTREE_ROW(folderview->opened)->children)
1860                 gtk_ctree_collapse(ctree, folderview->opened);
1861
1862         /* ungrab the mouse event */
1863         if (GTK_WIDGET_HAS_GRAB(ctree)) {
1864                 gtk_grab_remove(GTK_WIDGET(ctree));
1865                 if (gdk_pointer_is_grabbed())
1866                         gdk_pointer_ungrab(GDK_CURRENT_TIME);
1867         }
1868
1869         /* Open Folder */
1870         buf = g_strdup_printf(_("Opening Folder %s..."), item->path ? 
1871                                         item->path : "(null)");
1872         debug_print("%s\n", buf);
1873         STATUSBAR_PUSH(folderview->mainwin, buf);
1874         g_free(buf);
1875
1876         main_window_cursor_wait(folderview->mainwin);
1877
1878         if (folder_item_open(item) != 0) {
1879                 main_window_cursor_normal(folderview->mainwin);
1880                 STATUSBAR_POP(folderview->mainwin);
1881
1882                 alertpanel_error(_("Folder could not be opened."));
1883
1884                 folderview->open_folder = FALSE;
1885                 can_select = TRUE;
1886
1887                 return;
1888         }
1889         
1890
1891         main_window_cursor_normal(folderview->mainwin);
1892
1893         /* Show messages */
1894         summary_set_prefs_from_folderitem(folderview->summaryview, item);
1895         opened = summary_show(folderview->summaryview, item);
1896         
1897         folder_clean_cache_memory();
1898
1899         if (!opened) {
1900                 gtkut_ctree_set_focus_row(ctree, folderview->opened);
1901                 gtk_ctree_select(ctree, folderview->opened);
1902         } else {
1903                 folderview->opened = row;
1904                 if (gtk_ctree_node_is_visible(ctree, row)
1905                     != GTK_VISIBILITY_FULL)
1906                         gtk_ctree_node_moveto(ctree, row, -1, 0.5, 0);
1907         }
1908
1909         g_timeout_add(0, folderview_process_open, folderview);
1910
1911         STATUSBAR_POP(folderview->mainwin);
1912
1913         folderview->open_folder = FALSE;
1914         can_select = TRUE;
1915 }
1916
1917 static void folderview_tree_expanded(GtkCTree *ctree, GtkCTreeNode *node,
1918                                      FolderView *folderview)
1919 {
1920         FolderItem *item;
1921
1922         item = gtk_ctree_node_get_row_data(ctree, node);
1923         g_return_if_fail(item != NULL);
1924         item->collapsed = FALSE;
1925         folderview_update_node(folderview, node);
1926 }
1927
1928 static void folderview_tree_collapsed(GtkCTree *ctree, GtkCTreeNode *node,
1929                                       FolderView *folderview)
1930 {
1931         FolderItem *item;
1932
1933         item = gtk_ctree_node_get_row_data(ctree, node);
1934         g_return_if_fail(item != NULL);
1935         item->collapsed = TRUE;
1936         folderview_update_node(folderview, node);
1937 }
1938
1939 static void folderview_popup_close(GtkMenuShell *menu_shell,
1940                                    FolderView *folderview)
1941 {
1942         if (!folderview->opened) return;
1943
1944         gtk_ctree_select(GTK_CTREE(folderview->ctree), folderview->opened);
1945 }
1946
1947 static void folderview_col_resized(GtkCList *clist, gint column, gint width,
1948                                    FolderView *folderview)
1949 {
1950         FolderColumnType type = folderview->col_state[column].type;
1951
1952         prefs_common.folder_col_size[type] = width;
1953 }
1954
1955 void folderview_create_folder_node_recursive(FolderView *folderview, FolderItem *item)
1956 {
1957         GNode *srcnode;
1958
1959         folderview_create_folder_node(folderview, item);
1960
1961         if (!item || !item->folder || !item->folder->node)
1962                 return;
1963
1964         srcnode = item->folder->node;   
1965         srcnode = g_node_find(srcnode, G_PRE_ORDER, G_TRAVERSE_ALL, item);
1966         srcnode = srcnode->children;
1967         while (srcnode != NULL) {
1968                 if (srcnode && srcnode->data) {
1969                         FolderItem *next_item = (FolderItem*) srcnode->data;
1970                         folderview_create_folder_node_recursive(folderview, next_item);
1971                 }
1972                 srcnode = srcnode->next;
1973         }
1974 }
1975
1976 void folderview_create_folder_node(FolderView *folderview, FolderItem *item)
1977 {
1978         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
1979         gchar *text[N_FOLDER_COLS] = {NULL, "0", "0", "0"};
1980         GtkCTreeNode *node, *parent_node;
1981         gint *col_pos = folderview->col_pos;
1982         FolderItemUpdateData hookdata;
1983
1984         parent_node = gtk_ctree_find_by_row_data(ctree, NULL, folder_item_parent(item));
1985         if (parent_node == NULL)
1986                 return;
1987
1988         gtk_clist_freeze(GTK_CLIST(ctree));
1989
1990         text[col_pos[F_COL_FOLDER]] = item->name;
1991         node = gtk_ctree_insert_node(ctree, parent_node, NULL, text,
1992                                      FOLDER_SPACING,
1993                                      folderxpm, folderxpmmask,
1994                                      folderopenxpm, folderopenxpmmask,
1995                                      FALSE, FALSE);
1996         gtk_ctree_expand(ctree, parent_node);
1997         gtk_ctree_node_set_row_data(ctree, node, item);
1998         if (normal_style)
1999                 gtk_ctree_node_set_row_style(ctree, node, normal_style);
2000         folderview_sort_folders(folderview, parent_node, item->folder);
2001
2002         hookdata.item = item;
2003         hookdata.update_flags = F_ITEM_UPDATE_NAME;
2004         hookdata.msg = NULL;
2005         hooks_invoke(FOLDER_ITEM_UPDATE_HOOKLIST, &hookdata);
2006
2007         gtk_clist_thaw(GTK_CLIST(ctree));
2008 }
2009
2010 static void folderview_empty_trash_cb(FolderView *folderview, guint action,
2011                                       GtkWidget *widget)
2012 {
2013         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
2014         FolderItem *item;
2015         GSList *mlist = NULL;
2016         GSList *cur = NULL;
2017         FolderItem *special_trash = NULL;
2018         PrefsAccount *ac;
2019
2020         if (!folderview->selected) return;
2021         item = gtk_ctree_node_get_row_data(ctree, folderview->selected);
2022         g_return_if_fail(item != NULL);
2023         g_return_if_fail(item->folder != NULL);
2024
2025         if (NULL != (ac = account_find_from_item(item)))
2026                 special_trash = account_get_special_folder(ac, F_TRASH);
2027
2028         if (item != item->folder->trash && item != special_trash
2029         &&  !folder_has_parent_of_type(item, F_TRASH)) return;
2030         
2031         if (prefs_common.ask_on_clean) {
2032                 if (alertpanel(_("Empty trash"),
2033                                _("Delete all messages in trash?"),
2034                                GTK_STOCK_YES, GTK_STOCK_NO, NULL) != G_ALERTDEFAULT)
2035                         return;
2036         }
2037         
2038         mlist = folder_item_get_msg_list(item);
2039         
2040         for (cur = mlist ; cur != NULL ; cur = cur->next) {
2041                 MsgInfo * msginfo = (MsgInfo *) cur->data;
2042                 if (MSG_IS_LOCKED(msginfo->flags))
2043                         continue;
2044                 /* is it partially received? (partial_recv isn't cached) */
2045                 if (msginfo->total_size != 0 && 
2046                     msginfo->size != (off_t)msginfo->total_size)
2047                         partial_mark_for_delete(msginfo);
2048         }
2049         procmsg_msg_list_free(mlist);
2050
2051         folder_item_remove_all_msg(item);
2052 }
2053
2054 static void folderview_search_cb(FolderView *folderview, guint action,
2055                                  GtkWidget *widget)
2056 {
2057         summary_search(folderview->summaryview);
2058 }
2059
2060 static void folderview_property_cb(FolderView *folderview, guint action,
2061                                    GtkWidget *widget)
2062 {
2063         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
2064         FolderItem *item;
2065
2066         if (!folderview->selected) return;
2067
2068         item = gtk_ctree_node_get_row_data(ctree, folderview->selected);
2069         g_return_if_fail(item != NULL);
2070         g_return_if_fail(item->folder != NULL);
2071
2072         if (folder_item_parent(item) == NULL)
2073                 return;
2074
2075         prefs_folder_item_open(item);
2076 }
2077
2078 static void folderview_recollapse_nodes(FolderView *folderview, GtkCTreeNode *node)
2079 {
2080         GSList *list = NULL;
2081         GSList *done = NULL;
2082         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
2083         
2084         for (list = folderview->nodes_to_recollapse; list != NULL; list = g_slist_next(list)) {
2085                 if (!gtkut_ctree_node_is_parent(GTK_CTREE_NODE(list->data), node)
2086                 &&  list->data != node) {
2087                         gtk_ctree_collapse(ctree, GTK_CTREE_NODE(list->data));
2088                         done = g_slist_append(done, GTK_CTREE_NODE(list->data));
2089                 }
2090         }
2091         for (list = done; list != NULL; list = g_slist_next(list)) {
2092                 folderview->nodes_to_recollapse = g_slist_remove(folderview->nodes_to_recollapse, 
2093                                                                  list->data);
2094         }
2095         g_slist_free(done);
2096 }
2097
2098 void folderview_move_folder(FolderView *folderview, FolderItem *from_folder,
2099                             FolderItem *to_folder)
2100 {
2101         FolderItem *from_parent = NULL;
2102         FolderItem *new_folder = NULL;
2103         GtkCTreeNode *src_node = NULL;
2104         gchar *buf;
2105         gint status;
2106
2107         g_return_if_fail(folderview != NULL);
2108         g_return_if_fail(from_folder != NULL);
2109         g_return_if_fail(to_folder != NULL);
2110
2111         src_node = gtk_ctree_find_by_row_data(GTK_CTREE(folderview->ctree), NULL, from_folder);
2112         from_parent = folder_item_parent(from_folder);
2113         
2114         if (prefs_common.warn_dnd) {
2115                 buf = g_strdup_printf(_("Do you really want to make folder '%s' a "
2116                                         "sub-folder of '%s' ?"), from_folder->name,
2117                                         to_folder->name);
2118                 status = alertpanel_full(_("Move folder"), buf,
2119                                          GTK_STOCK_YES, GTK_STOCK_NO, NULL, TRUE,
2120                                          NULL, ALERT_QUESTION, G_ALERTALTERNATE);
2121                 g_free(buf);
2122
2123                 if (status != G_ALERTDEFAULT
2124                  && status != (G_ALERTDEFAULT | G_ALERTDISABLE))
2125                         return;
2126                 if (status & G_ALERTDISABLE)
2127                         prefs_common.warn_dnd = FALSE;
2128         }
2129
2130         buf = g_strdup_printf(_("Moving %s to %s..."), from_folder->name, to_folder->name);
2131         STATUSBAR_PUSH(folderview->mainwin, buf);
2132         g_free(buf);
2133         summary_clear_all(folderview->summaryview);
2134         folderview->opened = NULL;
2135         folderview->selected = NULL;
2136         gtk_widget_set_sensitive(GTK_WIDGET(folderview->ctree), FALSE);
2137         inc_lock();
2138         main_window_cursor_wait(folderview->mainwin);
2139         statusbar_verbosity_set(TRUE);
2140         folder_item_update_freeze();
2141         if ((status = folder_item_move_to(from_folder, to_folder, &new_folder)) == F_MOVE_OK) {
2142                 statusbar_verbosity_set(FALSE);
2143                 main_window_cursor_normal(folderview->mainwin);
2144                 STATUSBAR_POP(folderview->mainwin);
2145                 folder_item_update_thaw();
2146                 folder_item_update_recursive(new_folder, F_ITEM_UPDATE_MSGCNT);
2147
2148                 folderview_sort_folders(folderview, 
2149                         gtk_ctree_find_by_row_data(GTK_CTREE(folderview->ctree), 
2150                                 NULL, to_folder), new_folder->folder);
2151                 folderview_select(folderview, new_folder);
2152         } else {
2153                 statusbar_verbosity_set(FALSE);         
2154                 main_window_cursor_normal(folderview->mainwin);
2155                 STATUSBAR_POP(folderview->mainwin);
2156                 folder_item_update_thaw();
2157                 switch (status) {
2158                 case F_MOVE_FAILED_DEST_IS_PARENT:
2159                         alertpanel_error(_("Source and destination are the same."));
2160                         break;
2161                 case F_MOVE_FAILED_DEST_IS_CHILD:
2162                         alertpanel_error(_("Can't move a folder to one of its children."));
2163                         break;
2164                 case F_MOVE_FAILED_DEST_OUTSIDE_MAILBOX:
2165                         alertpanel_error(_("Folder moving cannot be done between different mailboxes."));
2166                         break;
2167                 default:
2168                         alertpanel_error(_("Move failed!"));
2169                         break;
2170                 }
2171         }       
2172         inc_unlock();           
2173         gtk_widget_set_sensitive(GTK_WIDGET(folderview->ctree), TRUE);
2174 }
2175
2176 static gint folderview_clist_compare(GtkCList *clist,
2177                                      gconstpointer ptr1, gconstpointer ptr2)
2178 {
2179         FolderItem *item1 = ((GtkCListRow *)ptr1)->data;
2180         FolderItem *item2 = ((GtkCListRow *)ptr2)->data;
2181
2182         if (!item1->name)
2183                 return (item2->name != NULL);
2184         if (!item2->name)
2185                 return -1;
2186
2187         return g_utf8_collate(item1->name, item2->name);
2188 }
2189
2190 static void folderview_processing_cb(FolderView *folderview, guint action,
2191                                      GtkWidget *widget)
2192 {
2193         GtkCTree *ctree = GTK_CTREE(folderview->ctree);
2194         FolderItem *item;
2195         gchar *id, *title;
2196
2197         if (!folderview->selected) return;
2198
2199         item = gtk_ctree_node_get_row_data(ctree, folderview->selected);
2200         g_return_if_fail(item != NULL);
2201         g_return_if_fail(item->folder != NULL);
2202
2203         id = folder_item_get_identifier(item);
2204         title = g_strdup_printf (_("Processing configuration for folder %s"), id);
2205         g_free (id);
2206
2207         prefs_filtering_open(&item->prefs->processing, title, NULL, NULL);
2208         g_free (title);
2209 }
2210
2211 void folderview_set_target_folder_color(gint color_op) 
2212 {
2213         gint firstone = 1;
2214         GList *list;
2215         FolderView *folderview;
2216
2217         for (list = folderview_list; list != NULL; list = list->next) {
2218                 folderview = (FolderView *)list->data;
2219                 gtkut_convert_int_to_gdk_color(color_op, &folderview->color_op);
2220                 if (firstone) {
2221                         bold_tgtfold_style->fg[GTK_STATE_NORMAL] =
2222                                 folderview->color_op;
2223                         firstone = 0;
2224                 }
2225         }
2226 }
2227
2228 void folderview_reflect_prefs_pixmap_theme(FolderView *folderview)
2229 {
2230 }
2231
2232 void folderview_reflect_prefs(void)
2233 {
2234         FolderView *folderview = mainwindow_get_mainwindow()->folderview;
2235         FolderItem *item = folderview_get_selected_item(folderview);    
2236         normal_style = normal_color_style = bold_style = 
2237                 bold_color_style = bold_tgtfold_style = NULL;
2238
2239         folderview_init(folderview);
2240         folderview_column_set_titles(folderview);
2241         folderview_set_all();
2242         if (item)
2243                 folderview_select(folderview, item);
2244 }
2245
2246 static void drag_state_stop(FolderView *folderview)
2247 {
2248         if (folderview->drag_timer)
2249                 gtk_timeout_remove(folderview->drag_timer);
2250         folderview->drag_timer = 0;
2251         folderview->drag_node = NULL;
2252 }
2253
2254 static gint folderview_defer_expand(FolderView *folderview)
2255 {
2256         if (folderview->drag_node) {
2257                 folderview_recollapse_nodes(folderview, folderview->drag_node);
2258                 if (folderview->drag_item->collapsed) {
2259                         gtk_ctree_expand(GTK_CTREE(folderview->ctree), folderview->drag_node);
2260                         folderview->nodes_to_recollapse = g_slist_append
2261                                 (folderview->nodes_to_recollapse, folderview->drag_node);
2262                 }
2263         }
2264         folderview->drag_item  = NULL;
2265         folderview->drag_timer = 0;
2266         return FALSE;
2267 }
2268
2269 static void drag_state_start(FolderView *folderview, GtkCTreeNode *node, FolderItem *item)
2270 {
2271         /* the idea is that we call drag_state_start() whenever we want expansion to
2272          * start after 'prefs_common.hover_time' msecs. if we want to cancel expansion,
2273          * we need to call drag_state_stop() */
2274         drag_state_stop(folderview);
2275         /* request expansion */
2276         if (0 != (folderview->drag_timer = gtk_timeout_add
2277                         (prefs_common.hover_timeout, 
2278                          (GtkFunction)folderview_defer_expand,
2279                          folderview))) {
2280                 folderview->drag_node = node;
2281                 folderview->drag_item = item;
2282         }                        
2283 }
2284
2285 static void folderview_start_drag(GtkWidget *widget, gint button, GdkEvent *event,
2286                                   FolderView       *folderview)
2287 {
2288         GdkDragContext *context;
2289
2290         g_return_if_fail(folderview != NULL);
2291         if (folderview->selected == NULL) return;
2292         if (folderview->nodes_to_recollapse) 
2293                 g_slist_free(folderview->nodes_to_recollapse);
2294         folderview->nodes_to_recollapse = NULL;
2295         context = gtk_drag_begin(widget, folderview->target_list,
2296                                  GDK_ACTION_MOVE|GDK_ACTION_COPY|GDK_ACTION_DEFAULT, button, event);
2297         gtk_drag_set_icon_default(context);
2298 }
2299
2300 static void folderview_drag_data_get(GtkWidget        *widget,
2301                                      GdkDragContext   *drag_context,
2302                                      GtkSelectionData *selection_data,
2303                                      guint             info,
2304                                      guint             time,
2305                                      FolderView       *folderview)
2306 {
2307         FolderItem *item;
2308         GList *cur;
2309         gchar *source = NULL;
2310
2311         for (cur = GTK_CLIST(folderview->ctree)->selection;
2312              cur != NULL; cur = cur->next) {
2313                 item = gtk_ctree_node_get_row_data
2314                         (GTK_CTREE(folderview->ctree), 
2315                          GTK_CTREE_NODE(cur->data));
2316                 if (item) {
2317                         source = g_strdup_printf ("FROM_OTHER_FOLDER%s", folder_item_get_identifier(item));
2318                         gtk_selection_data_set(selection_data,
2319                                                selection_data->target, 8,
2320                                                source, strlen(source));
2321                         break;
2322                 } else
2323                         return;
2324         }
2325 }
2326
2327 gboolean folderview_update_folder(gpointer source, gpointer userdata)
2328 {
2329         FolderUpdateData *hookdata;
2330         FolderView *folderview;
2331         GtkWidget *ctree;
2332
2333         hookdata = source;
2334         folderview = (FolderView *) userdata;   
2335         g_return_val_if_fail(hookdata != NULL, FALSE);
2336         g_return_val_if_fail(folderview != NULL, FALSE);
2337
2338         ctree = folderview->ctree;
2339         g_return_val_if_fail(ctree != NULL, FALSE);
2340
2341         if (hookdata->update_flags & FOLDER_ADD_FOLDERITEM)
2342                 folderview_create_folder_node(folderview, hookdata->item);
2343         else if (hookdata->update_flags & FOLDER_REMOVE_FOLDERITEM) {
2344                 GtkCTreeNode *node;
2345
2346                 node = gtk_ctree_find_by_row_data(GTK_CTREE(ctree), NULL, hookdata->item);
2347                 if (node != NULL)
2348                         gtk_ctree_remove_node(GTK_CTREE(ctree), node);
2349         } else if (hookdata->update_flags & (FOLDER_TREE_CHANGED | FOLDER_ADD_FOLDER | FOLDER_REMOVE_FOLDER))
2350                 folderview_set(folderview);
2351
2352         return FALSE;
2353 }
2354
2355 static gboolean folderview_drag_motion_cb(GtkWidget      *widget,
2356                                           GdkDragContext *context,
2357                                           gint            x,
2358                                           gint            y,
2359                                           guint           time,
2360                                           FolderView     *folderview)
2361 {
2362         gint row, column;
2363         FolderItem *item = NULL, *src_item = NULL;
2364         GtkCTreeNode *node = NULL;
2365         gboolean acceptable = FALSE;
2366         GtkAdjustment *pos = gtk_scrolled_window_get_vadjustment(
2367                                 GTK_SCROLLED_WINDOW(folderview->scrolledwin));
2368         int height = (int)pos->page_size;
2369         int total_height = (int)pos->upper;
2370         int vpos = (int) pos->value;
2371
2372         if (gtk_clist_get_selection_info
2373                 (GTK_CLIST(widget), x - 24, y - 24, &row, &column)) {
2374                 GtkWidget *srcwidget;
2375
2376                 if (y > height - 24 && height + vpos < total_height)
2377                         gtk_adjustment_set_value(pos, (vpos+5 > height ? height : vpos+5));
2378
2379                 if (y < 48 && y > 0)
2380                         gtk_adjustment_set_value(pos, (vpos-5 < 0 ? 0 : vpos-5));
2381
2382                 node = gtk_ctree_node_nth(GTK_CTREE(widget), row);
2383                 item = gtk_ctree_node_get_row_data(GTK_CTREE(widget), node);
2384                 src_item = folderview->summaryview->folder_item;
2385
2386                 srcwidget = gtk_drag_get_source_widget(context);
2387                 if (srcwidget == folderview->summaryview->ctree) {
2388                         /* comes from summaryview */
2389                         /* we are copying messages, so only accept folder items that are not
2390                            the source item, are no root items and can copy messages */
2391                         if (item && item->folder && folder_item_parent(item) != NULL && src_item &&
2392                             src_item != item && FOLDER_CLASS(item->folder)->copy_msg != NULL)
2393                                 acceptable = TRUE;
2394                 } else if (srcwidget == folderview->ctree) {
2395                         /* comes from folderview */
2396                         /* we are moving folder items, only accept folders that are not
2397                            the source items and can copy messages and create folder items */
2398                         if (item && item->folder && src_item && src_item != item &&
2399                             FOLDER_CLASS(item->folder)->copy_msg != NULL &&
2400                             FOLDER_CLASS(item->folder)->create_folder != NULL)
2401                                 acceptable = TRUE;
2402                 }
2403         }
2404
2405         if (acceptable || (src_item && src_item == item))
2406                 drag_state_start(folderview, node, item);
2407         
2408         if (acceptable) {
2409                 g_signal_handlers_block_by_func
2410                         (G_OBJECT(widget),
2411                          G_CALLBACK(folderview_selected), folderview);
2412                 gtk_ctree_select(GTK_CTREE(widget), node);
2413                 g_signal_handlers_unblock_by_func
2414                         (G_OBJECT(widget),
2415                          G_CALLBACK(folderview_selected), folderview);
2416                 gdk_drag_status(context, 
2417                                         (context->actions == GDK_ACTION_COPY ?
2418                                         GDK_ACTION_COPY : GDK_ACTION_MOVE) , time);
2419         } else {
2420                 gtk_ctree_select(GTK_CTREE(widget), folderview->opened);
2421                 gdk_drag_status(context, 0, time);
2422         }
2423
2424         return acceptable;
2425 }
2426
2427 static void folderview_drag_leave_cb(GtkWidget      *widget,
2428                                      GdkDragContext *context,
2429                                      guint           time,
2430                                      FolderView     *folderview)
2431 {
2432         drag_state_stop(folderview);
2433         gtk_ctree_select(GTK_CTREE(widget), folderview->opened);
2434 }
2435
2436 static void folderview_drag_received_cb(GtkWidget        *widget,
2437                                         GdkDragContext   *drag_context,
2438                                         gint              x,
2439                                         gint              y,
2440                                         GtkSelectionData *data,
2441                                         guint             info,
2442                                         guint             time,
2443                                         FolderView       *folderview)
2444 {
2445         gint row, column;
2446         FolderItem *item, *src_item;
2447         GtkCTreeNode *node;
2448
2449         drag_state_stop(folderview);
2450         if ((void *)strstr(data->data, "FROM_OTHER_FOLDER") != (void *)data->data) {
2451                 /* comes from summaryview */
2452                 if (gtk_clist_get_selection_info
2453                         (GTK_CLIST(widget), x - 24, y - 24, &row, &column) == 0)
2454                         return;
2455
2456                 node = gtk_ctree_node_nth(GTK_CTREE(widget), row);
2457                 item = gtk_ctree_node_get_row_data(GTK_CTREE(widget), node);
2458                 src_item = folderview->summaryview->folder_item;
2459                 
2460                 /* re-check (due to acceptable possibly set for folder moves */
2461                 if (!(item && item->folder && item->path && !item->no_select && 
2462                       src_item && src_item != item && FOLDER_CLASS(item->folder)->copy_msg != NULL)) {
2463                         return;
2464                 }
2465                 if (item && src_item) {
2466                         switch (drag_context->action) {
2467                         case GDK_ACTION_COPY:
2468                                 summary_copy_selected_to(folderview->summaryview, item);
2469                                 gtk_drag_finish(drag_context, TRUE, FALSE, time);
2470                                 break;
2471                         case GDK_ACTION_MOVE:
2472                         case GDK_ACTION_DEFAULT:
2473                         default:
2474                                 if (FOLDER_CLASS(src_item->folder)->remove_msg == NULL)
2475                                         summary_copy_selected_to(folderview->summaryview, item);
2476                                 else
2477                                         summary_move_selected_to(folderview->summaryview, item);
2478                                 gtk_drag_finish(drag_context, TRUE, TRUE, time);
2479                         }
2480                 } else
2481                         gtk_drag_finish(drag_context, FALSE, FALSE, time);
2482         } else {
2483                 /* comes from folderview */
2484                 char *source;
2485                 gboolean folder_is_normal = TRUE;
2486                 
2487                 source = data->data + 17;
2488                 if (gtk_clist_get_selection_info
2489                     (GTK_CLIST(widget), x - 24, y - 24, &row, &column) == 0
2490                     || *source == 0) {
2491                         gtk_drag_finish(drag_context, FALSE, FALSE, time);                      
2492                         return;
2493                 }
2494                 node = gtk_ctree_node_nth(GTK_CTREE(widget), row);
2495                 item = gtk_ctree_node_get_row_data(GTK_CTREE(widget), node);
2496                 src_item = folder_find_item_from_identifier(source);
2497
2498                 folder_is_normal = 
2499                         src_item != NULL &&
2500                         src_item->stype == F_NORMAL &&
2501                         !folder_has_parent_of_type(src_item, F_OUTBOX) &&
2502                         !folder_has_parent_of_type(src_item, F_DRAFT) &&
2503                         !folder_has_parent_of_type(src_item, F_QUEUE) &&
2504                         !folder_has_parent_of_type(src_item, F_TRASH);
2505                 if (!item || item->no_select || !src_item 
2506                 ||  !folder_is_normal) {
2507                         gtk_drag_finish(drag_context, FALSE, FALSE, time);                      
2508                         return;
2509                 }
2510
2511                 folderview_move_folder(folderview, src_item, item);
2512                 gtk_drag_finish(drag_context, TRUE, TRUE, time);
2513         }
2514         folderview->nodes_to_recollapse = NULL;
2515 }
2516
2517 static void folderview_drag_end_cb(GtkWidget        *widget, 
2518                                    GdkDragContext   *drag_context,
2519                                    FolderView       *folderview)
2520 {
2521         drag_state_stop(folderview);
2522         g_slist_free(folderview->nodes_to_recollapse);
2523         folderview->nodes_to_recollapse = NULL;
2524 }
2525
2526 void folderview_register_popup(FolderViewPopup *fpopup)
2527 {
2528         GList *folderviews;
2529
2530         for (folderviews = folderview_list; folderviews != NULL; folderviews = g_list_next(folderviews)) {
2531                 FolderView *folderview = folderviews->data;
2532                 GtkItemFactory *factory;
2533
2534                 factory = create_ifactory(folderview, fpopup);
2535                 g_hash_table_insert(folderview->popups, fpopup->klass, factory);
2536         }       
2537         g_hash_table_insert(folderview_popups, fpopup->klass, fpopup);
2538 }
2539
2540 void folderview_unregister_popup(FolderViewPopup *fpopup)
2541 {
2542         GList *folderviews;
2543
2544         for (folderviews = folderview_list; folderviews != NULL; folderviews = g_list_next(folderviews)) {
2545                 FolderView *folderview = folderviews->data;
2546
2547                 g_hash_table_remove(folderview->popups, fpopup->klass);
2548         }       
2549         g_hash_table_remove(folderview_popups, fpopup->klass);
2550 }