more sync with sylpheed 0.5.0pre1
[claws.git] / src / folderview.c
index 199b01ce027117d16653577188bad94d0a0ef5e8..e23ac4caefcc302cb2444383f2976af80f807194 100644 (file)
@@ -1,6 +1,6 @@
 /*
  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
- * Copyright (C) 1999,2000 Hiroyuki Yamamoto
+ * Copyright (C) 1999-2001 Hiroyuki Yamamoto
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -134,6 +134,12 @@ static void folderview_selected            (GtkCTree       *ctree,
                                         GtkCTreeNode   *row,
                                         gint            column,
                                         FolderView     *folderview);
+static void folderview_tree_expanded   (GtkCTree       *ctree,
+                                        GtkCTreeNode   *node,
+                                        FolderView     *folderview);
+static void folderview_tree_collapsed  (GtkCTree       *ctree,
+                                        GtkCTreeNode   *node,
+                                        FolderView     *folderview);
 static void folderview_popup_close     (GtkMenuShell   *menu_shell,
                                         FolderView     *folderview);
 static void folderview_col_resized     (GtkCList       *clist,
@@ -144,9 +150,15 @@ static void folderview_col_resized (GtkCList       *clist,
 static void folderview_new_folder_cb   (FolderView     *folderview,
                                         guint           action,
                                         GtkWidget      *widget);
+static void folderview_new_mbox_folder_cb(FolderView *folderview,
+                                         guint action,
+                                         GtkWidget *widget);
 static void folderview_rename_folder_cb        (FolderView     *folderview,
                                         guint           action,
                                         GtkWidget      *widget);
+static void folderview_rename_mbox_folder_cb(FolderView *folderview,
+                                            guint action,
+                                            GtkWidget *widget);
 static void folderview_delete_folder_cb        (FolderView     *folderview,
                                         guint           action,
                                         GtkWidget      *widget);
@@ -192,6 +204,20 @@ static void folderview_drag_received_cb  (GtkWidget        *widget,
                                          guint             info,
                                          guint             time,
                                          FolderView       *folderview);
+static void folderview_scoring_cb(FolderView *folderview, guint action,
+                                 GtkWidget *widget);
+
+static GtkItemFactoryEntry folderview_mbox_popup_entries[] =
+{
+       {N_("/Create _new folder..."),  NULL, folderview_new_mbox_folder_cb,    0, NULL},
+       {N_("/_Rename folder..."),      NULL, folderview_rename_mbox_folder_cb, 0, NULL},
+       {N_("/_Delete folder"),         NULL, folderview_delete_folder_cb, 0, NULL},
+       {N_("/---"),                    NULL, NULL, 0, "<Separator>"},
+       {N_("/Remove _mailbox"),        NULL, folderview_remove_mailbox_cb, 0, NULL},
+       {N_("/---"),                    NULL, NULL, 0, "<Separator>"},
+       {N_("/_Property..."),           NULL, NULL, 0, NULL},
+       {N_("/_Scoring..."),            NULL, folderview_scoring_cb, 0, NULL}
+};
 
 static GtkItemFactoryEntry folderview_mail_popup_entries[] =
 {
@@ -201,7 +227,8 @@ static GtkItemFactoryEntry folderview_mail_popup_entries[] =
        {N_("/---"),                    NULL, NULL, 0, "<Separator>"},
        {N_("/Remove _mailbox"),        NULL, folderview_remove_mailbox_cb, 0, NULL},
        {N_("/---"),                    NULL, NULL, 0, "<Separator>"},
-       {N_("/_Property..."),           NULL, NULL, 0, NULL}
+       {N_("/_Property..."),           NULL, NULL, 0, NULL},
+       {N_("/_Scoring..."),            NULL, folderview_scoring_cb, 0, NULL}
 };
 
 static GtkItemFactoryEntry folderview_imap_popup_entries[] =
@@ -212,7 +239,8 @@ static GtkItemFactoryEntry folderview_imap_popup_entries[] =
        {N_("/---"),                    NULL, NULL, 0, "<Separator>"},
        {N_("/Remove _IMAP4 server"),   NULL, folderview_rm_imap_server_cb, 0, NULL},
        {N_("/---"),                    NULL, NULL, 0, "<Separator>"},
-       {N_("/_Property..."),           NULL, NULL, 0, NULL}
+       {N_("/_Property..."),           NULL, NULL, 0, NULL},
+       {N_("/_Scoring..."),            NULL, folderview_scoring_cb, 0, NULL}
 };
 
 static GtkItemFactoryEntry folderview_news_popup_entries[] =
@@ -223,7 +251,8 @@ static GtkItemFactoryEntry folderview_news_popup_entries[] =
        {N_("/---"),                     NULL, NULL, 0, "<Separator>"},
        {N_("/Remove _news server"),     NULL, folderview_rm_news_server_cb, 0, NULL},
        {N_("/---"),                     NULL, NULL, 0, "<Separator>"},
-       {N_("/_Property..."),            NULL, NULL, 0, NULL}
+       {N_("/_Property..."),            NULL, NULL, 0, NULL},
+       {N_("/_Scoring..."),            NULL, folderview_scoring_cb, 0, NULL}
 };
 
 
@@ -237,9 +266,11 @@ FolderView *folderview_create(void)
        GtkWidget *mail_popup;
        GtkWidget *news_popup;
        GtkWidget *imap_popup;
+       GtkWidget *mbox_popup;
        GtkItemFactory *mail_factory;
        GtkItemFactory *news_factory;
        GtkItemFactory *imap_factory;
+       GtkItemFactory *mbox_factory;
        gint n_entries;
        gint i;
 
@@ -253,7 +284,6 @@ FolderView *folderview_create(void)
        gtk_widget_set_usize(scrolledwin,
                             prefs_common.folderview_width,
                             prefs_common.folderview_height);
-       //                   COL_FOLDER_WIDTH + COL_NUM_WIDTH - 3, -1);
 
        ctree = gtk_ctree_new_with_titles(N_FOLDER_COLS, COL_FOLDER, titles);
        gtk_container_add(GTK_CONTAINER(scrolledwin), ctree);
@@ -276,7 +306,7 @@ FolderView *folderview_create(void)
        gtk_ctree_set_expander_style(GTK_CTREE(ctree),
                                     GTK_CTREE_EXPANDER_SQUARE);
        gtk_ctree_set_indent(GTK_CTREE(ctree), CTREE_INDENT);
-       //gtk_clist_set_reorderable(GTK_CLIST(ctree), TRUE);
+       
        /* don't let title buttons take key focus */
        for (i = 0; i < N_FOLDER_COLS; i++)
                GTK_WIDGET_UNSET_FLAGS(GTK_CLIST(ctree)->column[i].button,
@@ -301,6 +331,12 @@ FolderView *folderview_create(void)
                                       n_entries,
                                       "<NewsFolder>", &news_factory,
                                       folderview);
+       n_entries = sizeof(folderview_mbox_popup_entries) /
+               sizeof(folderview_mbox_popup_entries[0]);
+       mbox_popup = menu_create_items(folderview_mbox_popup_entries,
+                                      n_entries,
+                                      "<MailFolder>", &mbox_factory,
+                                      folderview);
 
        gtk_signal_connect(GTK_OBJECT(ctree), "key_press_event",
                           GTK_SIGNAL_FUNC(folderview_key_pressed),
@@ -313,6 +349,15 @@ FolderView *folderview_create(void)
                           folderview);
        gtk_signal_connect(GTK_OBJECT(ctree), "tree_select_row",
                           GTK_SIGNAL_FUNC(folderview_selected), folderview);
+
+
+       gtk_signal_connect_after(GTK_OBJECT(ctree), "tree_expand",
+                                GTK_SIGNAL_FUNC(folderview_tree_expanded),
+                                folderview);
+       gtk_signal_connect_after(GTK_OBJECT(ctree), "tree_collapse",
+                                GTK_SIGNAL_FUNC(folderview_tree_collapsed),
+                                folderview);
+
        gtk_signal_connect(GTK_OBJECT(ctree), "resize_column",
                           GTK_SIGNAL_FUNC(folderview_col_resized),
                           folderview);
@@ -326,6 +371,9 @@ FolderView *folderview_create(void)
        gtk_signal_connect(GTK_OBJECT(news_popup), "selection_done",
                           GTK_SIGNAL_FUNC(folderview_popup_close),
                           folderview);
+       gtk_signal_connect(GTK_OBJECT(mbox_popup), "selection_done",
+                          GTK_SIGNAL_FUNC(folderview_popup_close),
+                          folderview);
 
         /* drop callback */
        gtk_drag_dest_set(ctree, GTK_DEST_DEFAULT_ALL &
@@ -350,6 +398,8 @@ FolderView *folderview_create(void)
        folderview->imap_factory = imap_factory;
        folderview->news_popup   = news_popup;
        folderview->news_factory = news_factory;
+       folderview->mbox_popup   = mbox_popup;
+       folderview->mbox_factory = mbox_factory;
 
        gtk_widget_show_all(scrolledwin);
 
@@ -424,6 +474,10 @@ static void folderview_select_node(FolderView *folderview, GtkCTreeNode *node)
                gtk_widget_grab_focus(folderview->summaryview->ctree);
        else
                gtk_widget_grab_focus(folderview->ctree);
+
+       while ((node = gtkut_ctree_find_collapsed_parent(ctree, node))
+              != NULL)
+               gtk_ctree_expand(ctree, node);
 }
 
 void folderview_unselect(FolderView *folderview)
@@ -435,36 +489,42 @@ void folderview_unselect(FolderView *folderview)
        folderview->selected = folderview->opened = NULL;
 }
 
-void folderview_select_next_unread(FolderView *folderview)
+static GtkCTreeNode *folderview_find_next_unread(GtkCTree *ctree,
+                                                GtkCTreeNode *node)
 {
-       GtkCTree *ctree = GTK_CTREE(folderview->ctree);
-       GtkCTreeNode *node;
        FolderItem *item;
 
-       if (folderview->opened)
-               node = GTK_CTREE_NODE_NEXT(folderview->opened);
+       if (node)
+               node = gtkut_ctree_node_next(ctree, node);
        else
-               node = gtk_ctree_node_nth(ctree, 1);
+               node = GTK_CTREE_NODE(GTK_CLIST(ctree)->row_list);
 
-       for (; node != NULL; node = GTK_CTREE_NODE_NEXT(node)) {
+       for (; node != NULL; node = gtkut_ctree_node_next(ctree, node)) {
                item = gtk_ctree_node_get_row_data(ctree, node);
-               if (item && (item->unread > 0 || item->new > 0) &&
-                   item->stype != F_TRASH) {
-                       folderview_select_node(folderview, node);
-                       return;
-               }
+               if (item && item->unread > 0 && item->stype != F_TRASH)
+                       return node;
        }
-       if (!folderview->opened) return;
-       /* search again from the first node */
-       for (node = gtk_ctree_node_nth(ctree, 1); node != NULL;
-            node = GTK_CTREE_NODE_NEXT(node)) {
-               item = gtk_ctree_node_get_row_data(ctree, node);
-               if (item && (item->unread > 0 || item->new > 0) &&
-                   item->stype != F_TRASH) {
-                       folderview_select_node(folderview, node);
-                       return;
-               }
+
+       return NULL;
+}
+
+void folderview_select_next_unread(FolderView *folderview)
+{
+       GtkCTree *ctree = GTK_CTREE(folderview->ctree);
+       GtkCTreeNode *node = NULL;
+
+       if ((node = folderview_find_next_unread(ctree, folderview->opened))
+           != NULL) {
+               folderview_select_node(folderview, node);
+               return;
        }
+
+       if (!folderview->opened ||
+           folderview->opened == GTK_CTREE_NODE(GTK_CLIST(ctree)->row_list))
+               return;
+       /* search again from the first node */
+       if ((node = folderview_find_next_unread(ctree, NULL)) != NULL)
+               folderview_select_node(folderview, node);
 }
 
 void folderview_update_msg_num(FolderView *folderview, GtkCTreeNode *row,
@@ -579,14 +639,110 @@ void folderview_update_all(void)
        gtk_widget_destroy(window);
 }
 
+static gboolean folderview_search_new_recursive(GtkCTree *ctree,
+                                               GtkCTreeNode *node)
+{
+       FolderItem *item;
+
+       if (node) {
+               item = gtk_ctree_node_get_row_data(ctree, node);
+               if (item) {
+                       if (item->new > 0 ||
+                           (item->stype == F_QUEUE && item->total > 0))
+                               return TRUE;
+               }
+               node = GTK_CTREE_ROW(node)->children;
+       } else
+               node = GTK_CTREE_NODE(GTK_CLIST(ctree)->row_list);
+
+       while (node) {
+               if (folderview_search_new_recursive(ctree, node) == TRUE)
+                       return TRUE;
+               node = GTK_CTREE_ROW(node)->sibling;
+       }
+
+       return FALSE;
+}
+
+static gboolean folderview_have_new_children(FolderView *folderview,
+                                            GtkCTreeNode *node)
+{
+       GtkCTree *ctree = GTK_CTREE(folderview->ctree);
+
+       if (!node)
+               node = GTK_CTREE_NODE(GTK_CLIST(ctree)->row_list);
+       if (!node)
+               return FALSE;
+
+       node = GTK_CTREE_ROW(node)->children;
+
+       while (node) {
+               if (folderview_search_new_recursive(ctree, node) == TRUE)
+                       return TRUE;
+               node = GTK_CTREE_ROW(node)->sibling;
+       }
+
+       return FALSE;
+}
+
+static gboolean folderview_search_unread_recursive(GtkCTree *ctree,
+                                                  GtkCTreeNode *node)
+{
+       FolderItem *item;
+
+       if (node) {
+               item = gtk_ctree_node_get_row_data(ctree, node);
+               if (item) {
+                       if (item->unread > 0 ||
+                           (item->stype == F_QUEUE && item->total > 0))
+                               return TRUE;
+               }
+               node = GTK_CTREE_ROW(node)->children;
+       } else
+               node = GTK_CTREE_NODE(GTK_CLIST(ctree)->row_list);
+
+       while (node) {
+               if (folderview_search_unread_recursive(ctree, node) == TRUE)
+                       return TRUE;
+               node = GTK_CTREE_ROW(node)->sibling;
+       }
+
+       return FALSE;
+}
+
+static gboolean folderview_have_unread_children(FolderView *folderview,
+                                               GtkCTreeNode *node)
+{
+       GtkCTree *ctree = GTK_CTREE(folderview->ctree);
+
+       if (!node)
+               node = GTK_CTREE_NODE(GTK_CLIST(ctree)->row_list);
+       if (!node)
+               return FALSE;
+
+       node = GTK_CTREE_ROW(node)->children;
+
+       while (node) {
+               if (folderview_search_unread_recursive(ctree, node) == TRUE)
+                       return TRUE;
+               node = GTK_CTREE_ROW(node)->sibling;
+       }
+
+       return FALSE;
+}
+
 static void folderview_update_node(FolderView *folderview, GtkCTreeNode *node)
 {
        GtkCTree *ctree = GTK_CTREE(folderview->ctree);
        GtkStyle *style, *prev_style, *ctree_style;
+       GtkCTreeNode *parent;
        FolderItem *item;
        GdkPixmap *xpm, *openxpm;
        GdkBitmap *mask, *openmask;
        gchar *name;
+       gchar *str;
+       gboolean add_unread_mark;
+       gboolean use_bold, use_color;
 
        item = gtk_ctree_node_get_row_data(ctree, node);
        g_return_if_fail(item != NULL);
@@ -628,6 +784,8 @@ static void folderview_update_node(FolderView *folderview, GtkCTreeNode *node)
                        switch (item->folder->type) {
                        case F_MH:
                                name = " (MH)"; break;
+                       case F_MBOX:
+                               name = " (mbox)"; break;
                        case F_IMAP:
                                name = " (IMAP4)"; break;
                        case F_NEWS:
@@ -639,10 +797,29 @@ static void folderview_update_node(FolderView *folderview, GtkCTreeNode *node)
                } else
                        name = g_strdup(item->name);
        }
-       if (item->unread > 0 && prefs_common.display_folder_unread) {
-               gchar *str;
 
-               str = g_strdup_printf("%s (%d)", name, item->unread);
+       if (!GTK_CTREE_ROW(node)->expanded &&
+           folderview_have_unread_children(folderview, node))
+               add_unread_mark = TRUE;
+       else
+               add_unread_mark = FALSE;
+
+       if (item->stype == F_QUEUE && item->total > 0 &&
+           prefs_common.display_folder_unread) {
+               str = g_strdup_printf("%s (%d%s)", name, item->total,
+                                     add_unread_mark ? "+" : "");
+               gtk_ctree_set_node_info(ctree, node, str, FOLDER_SPACING,
+                                       xpm, mask, openxpm, openmask,
+                                       FALSE, GTK_CTREE_ROW(node)->expanded);
+               g_free(str);
+       } else if ((item->unread > 0 || add_unread_mark) &&
+                prefs_common.display_folder_unread) {
+
+               if (item->unread > 0)
+                       str = g_strdup_printf("%s (%d%s)", name, item->unread,
+                                             add_unread_mark ? "+" : "");
+               else
+                       str = g_strdup_printf("%s (+)", name);
                gtk_ctree_set_node_info(ctree, node, str, FOLDER_SPACING,
                                        xpm, mask, openxpm, openmask,
                                        FALSE, GTK_CTREE_ROW(node)->expanded);
@@ -657,7 +834,6 @@ static void folderview_update_node(FolderView *folderview, GtkCTreeNode *node)
                gtk_ctree_node_set_text(ctree, node, COL_NEW,    "-");
                gtk_ctree_node_set_text(ctree, node, COL_UNREAD, "-");
                gtk_ctree_node_set_text(ctree, node, COL_TOTAL,  "-");
-               return;
        } else {
                gtk_ctree_node_set_text(ctree, node, COL_NEW,    itos(item->new));
                gtk_ctree_node_set_text(ctree, node, COL_UNREAD, itos(item->unread));
@@ -671,37 +847,42 @@ static void folderview_update_node(FolderView *folderview, GtkCTreeNode *node)
        if (!prev_style)
                prev_style = ctree_style;
        style = gtk_style_copy(prev_style);
+       if (!style) return;
 
-       if (style) {
-               gboolean use_bold, use_color;
-
-               if (item->stype == F_QUEUE) {
-                       /* highlight queue folder if there are any messages */
-                       use_bold = use_color = (item->total > 0);
-               } else {
-                       /* if unread messages exist, print with bold font */
-                       use_bold = (item->unread > 0);
-                       /* if new messages exist, print with colored letter */
-                       use_color = (item->new > 0);
-               }
+       if (item->stype == F_QUEUE) {
+               /* highlight queue folder if there are any messages */
+               use_bold = use_color = (item->total > 0);
+       } else {
+               /* if unread messages exist, print with bold font */
+               use_bold = (item->unread > 0) || add_unread_mark;
+               /* if new messages exist, print with colored letter */
+               use_color =
+                       (item->new > 0) ||
+                       (add_unread_mark &&
+                        folderview_have_new_children(folderview, node));
+       }
 
-               if (use_bold && boldfont)
-                       style->font = boldfont;
-               else
-                       style->font = ctree_style->font;
-
-               if (use_color) {
-                       style->fg[GTK_STATE_NORMAL]   = folderview->color_new;
-                       style->fg[GTK_STATE_SELECTED] = folderview->color_new;
-               } else {
-                       style->fg[GTK_STATE_NORMAL] =
-                               ctree_style->fg[GTK_STATE_NORMAL];
-                       style->fg[GTK_STATE_SELECTED] =
-                               ctree_style->fg[GTK_STATE_SELECTED];
-               }
+       if (use_bold && boldfont)
+               style->font = boldfont;
+       else
+               style->font = ctree_style->font;
 
-               gtk_ctree_node_set_row_style(ctree, node, style);
+       if (use_color) {
+               style->fg[GTK_STATE_NORMAL]   = folderview->color_new;
+               style->fg[GTK_STATE_SELECTED] = folderview->color_new;
+       } else {
+               style->fg[GTK_STATE_NORMAL] =
+                       ctree_style->fg[GTK_STATE_NORMAL];
+               style->fg[GTK_STATE_SELECTED] =
+                       ctree_style->fg[GTK_STATE_SELECTED];
        }
+
+       gtk_ctree_node_set_row_style(ctree, node, style);
+
+       parent = node;
+       while ((parent = gtkut_ctree_find_collapsed_parent(ctree, parent))
+              != NULL)
+               folderview_update_node(folderview, parent);
 }
 
 void folderview_update_item(FolderItem *item, gboolean update_summary)
@@ -824,8 +1005,10 @@ void folderview_new_folder(FolderView *folderview)
        g_return_if_fail(item->folder != NULL);
 
        switch (item->folder->type) {
-       case F_MH:
        case F_MBOX:
+               folderview_new_mbox_folder_cb(folderview, 0, NULL);
+               break;
+       case F_MH:
        case F_MAILDIR:
                folderview_new_folder_cb(folderview, 0, NULL);
                break;
@@ -852,8 +1035,9 @@ void folderview_rename_folder(FolderView *folderview)
        if (item->stype != F_NORMAL) return;
 
        switch (item->folder->type) {
-       case F_MH:
        case F_MBOX:
+               folderview_rename_mbox_folder_cb(folderview, 0, NULL);
+       case F_MH:
        case F_MAILDIR:
                folderview_rename_folder_cb(folderview, 0, NULL);
                break;
@@ -945,6 +1129,7 @@ static void folderview_button_pressed(GtkWidget *ctree, GdkEventButton *event,
        menu_set_insensitive_all(GTK_MENU_SHELL(folderview->mail_popup));
        menu_set_insensitive_all(GTK_MENU_SHELL(folderview->imap_popup));
        menu_set_insensitive_all(GTK_MENU_SHELL(folderview->news_popup));
+       menu_set_insensitive_all(GTK_MENU_SHELL(folderview->mbox_popup));
 
        if (folder->type == F_MH && item->parent == NULL) {
                menu_set_sensitive(folderview->mail_factory,
@@ -954,6 +1139,8 @@ static void folderview_button_pressed(GtkWidget *ctree, GdkEventButton *event,
        } else if (folder->type == F_MH && item->stype != F_NORMAL) {
                menu_set_sensitive(folderview->mail_factory,
                                   "/Create new folder...", TRUE);
+               menu_set_sensitive(folderview->mail_factory,
+                                  "/Scoring...", TRUE);
        } else if (folder->type == F_MH) {
                menu_set_sensitive(folderview->mail_factory,
                                   "/Create new folder...", TRUE);
@@ -961,26 +1148,55 @@ static void folderview_button_pressed(GtkWidget *ctree, GdkEventButton *event,
                                   "/Rename folder...", TRUE);
                menu_set_sensitive(folderview->mail_factory,
                                   "/Delete folder", TRUE);
+               menu_set_sensitive(folderview->mail_factory,
+                                  "/Scoring...", TRUE);
        } else if (folder->type == F_IMAP && item->parent == NULL) {
                menu_set_sensitive(folderview->imap_factory,
                                   "/Create new folder...", TRUE);
                menu_set_sensitive(folderview->imap_factory,
                                   "/Remove IMAP4 server", TRUE);
-       } else if (folder->type == F_IMAP && item->parent != NULL) {
+       } else if (folder->type == F_IMAP && item->stype != F_NORMAL) {
+               menu_set_sensitive(folderview->imap_factory,
+                                  "/Create new folder...", TRUE);
+       } else if (folder->type == F_IMAP) {
                menu_set_sensitive(folderview->imap_factory,
                                   "/Create new folder...", TRUE);
                menu_set_sensitive(folderview->imap_factory,
                                   "/Delete folder", TRUE);
+               menu_set_sensitive(folderview->imap_factory,
+                                  "/Scoring...", TRUE);
        } else if (folder->type == F_NEWS && item->parent == NULL) {
                menu_set_sensitive(folderview->news_factory,
                                   "/Subscribe to newsgroup...", TRUE);
                menu_set_sensitive(folderview->news_factory,
                                   "/Remove news server", TRUE);
-       } else if (folder->type == F_NEWS && item->parent != NULL) {
+       } else if (folder->type == F_NEWS) {
                menu_set_sensitive(folderview->news_factory,
                                   "/Subscribe to newsgroup...", TRUE);
                menu_set_sensitive(folderview->news_factory,
                                   "/Remove newsgroup", TRUE);
+               menu_set_sensitive(folderview->news_factory,
+                                  "/Scoring...", TRUE);
+       }
+       if (folder->type == F_MBOX && item->parent == NULL) {
+               menu_set_sensitive(folderview->mbox_factory,
+                                  "/Create new folder...", TRUE);
+               menu_set_sensitive(folderview->mbox_factory,
+                                  "/Remove mailbox", TRUE);
+       } else if (folder->type == F_MBOX && item->stype != F_NORMAL) {
+               menu_set_sensitive(folderview->mbox_factory,
+                                  "/Create new folder...", TRUE);
+               menu_set_sensitive(folderview->mbox_factory,
+                                  "/Scoring...", TRUE);
+       } else if (folder->type == F_MBOX) {
+               menu_set_sensitive(folderview->mbox_factory,
+                                  "/Create new folder...", TRUE);
+               menu_set_sensitive(folderview->mbox_factory,
+                                  "/Rename folder...", TRUE);
+               menu_set_sensitive(folderview->mbox_factory,
+                                  "/Delete folder", TRUE);
+               menu_set_sensitive(folderview->mbox_factory,
+                                  "/Scoring...", TRUE);
        }
 
        if (folder->type == F_MH)
@@ -992,6 +1208,9 @@ static void folderview_button_pressed(GtkWidget *ctree, GdkEventButton *event,
        else if (folder->type == F_NEWS)
                gtk_menu_popup(GTK_MENU(folderview->news_popup), NULL, NULL,
                               NULL, NULL, event->button, event->time);
+       else if (folder->type == F_MBOX)
+               gtk_menu_popup(GTK_MENU(folderview->mbox_popup), NULL, NULL,
+                              NULL, NULL, event->button, event->time);
 }
 
 static void folderview_button_released(GtkWidget *ctree, GdkEventButton *event,
@@ -999,7 +1218,8 @@ static void folderview_button_released(GtkWidget *ctree, GdkEventButton *event,
 {
        if (!event) return;
 
-       if (event->button == 1 && folderview->opened != NULL) {
+       if (event->button == 1 && folderview->open_folder == FALSE &&
+           folderview->opened != NULL) {
                gtk_ctree_select(GTK_CTREE(ctree), folderview->opened);
                gtkut_ctree_set_focus_row(GTK_CTREE(ctree),
                                          folderview->opened);
@@ -1041,6 +1261,7 @@ static void folderview_selected(GtkCTree *ctree, GtkCTreeNode *row,
                                gint column, FolderView *folderview)
 {
        static gboolean can_select = TRUE;      /* exclusive lock */
+       gboolean opened;
        FolderItem *item;
 
        folderview->selected = row;
@@ -1057,7 +1278,6 @@ static void folderview_selected(GtkCTree *ctree, GtkCTreeNode *row,
        }
 
        if (!folderview->open_folder) return;
-       folderview->open_folder = FALSE;
 
        item = gtk_ctree_node_get_row_data(ctree, row);
        if (!item) return;
@@ -1073,13 +1293,37 @@ static void folderview_selected(GtkCTree *ctree, GtkCTreeNode *row,
            !GTK_CTREE_ROW(folderview->opened)->children)
                gtk_ctree_collapse(ctree, folderview->opened);
 
-       folderview->opened = row;
+       /* ungrab the mouse event */
+       if (GTK_WIDGET_HAS_GRAB(ctree)) {
+               gtk_grab_remove(GTK_WIDGET(ctree));
+               if (gdk_pointer_is_grabbed())
+                       gdk_pointer_ungrab(GDK_CURRENT_TIME);
+       }
+
+       opened = summary_show(folderview->summaryview, item, FALSE);
 
-       summary_show(folderview->summaryview, item, FALSE);
+       if (!opened) {
+               gtk_ctree_select(ctree, folderview->opened);
+               gtkut_ctree_set_focus_row(ctree, folderview->opened);
+       } else
+               folderview->opened = row;
 
+       folderview->open_folder = FALSE;
        can_select = TRUE;
 }
 
+static void folderview_tree_expanded(GtkCTree *ctree, GtkCTreeNode *node,
+                                    FolderView *folderview)
+{
+       folderview_update_node(folderview, node);
+}
+
+static void folderview_tree_collapsed(GtkCTree *ctree, GtkCTreeNode *node,
+                                     FolderView *folderview)
+{
+       folderview_update_node(folderview, node);
+}
+
 static void folderview_popup_close(GtkMenuShell *menu_shell,
                                   FolderView *folderview)
 {
@@ -1190,6 +1434,56 @@ static void folderview_new_folder_cb(FolderView *folderview, guint action,
        folder_write_list();
 }
 
+static void folderview_new_mbox_folder_cb(FolderView *folderview, guint action,
+                                         GtkWidget *widget)
+{
+       GtkCTree *ctree = GTK_CTREE(folderview->ctree);
+       gchar *text[N_FOLDER_COLS] = {NULL, "0", "0", "0"};
+       FolderItem *item;
+       FolderItem *new_item;
+       gchar *new_folder;
+       GtkCTreeNode *node;
+
+       if (!folderview->selected) return;
+
+       item = gtk_ctree_node_get_row_data(ctree, folderview->selected);
+       g_return_if_fail(item != NULL);
+       g_return_if_fail(item->folder != NULL);
+
+       new_folder = input_dialog(_("New folder"),
+                                 _("Input the name of new folder:"),
+                                 _("NewFolder"));
+       if (!new_folder) return;
+
+       /* find whether the directory already exists */
+       if (folderview_find_by_name(ctree, folderview->selected, new_folder)) {
+               alertpanel_error(_("The folder `%s' already exists."),
+                                new_folder);
+               g_free(new_folder);
+               return;
+       }
+
+       new_item = item->folder->create_folder(item->folder, item, new_folder);
+       g_free(new_folder);
+       if (!new_item) return;
+
+       gtk_clist_freeze(GTK_CLIST(ctree));
+
+       text[COL_FOLDER] = new_item->name;
+       node = gtk_ctree_insert_node(ctree, folderview->selected, NULL, text,
+                                    FOLDER_SPACING,
+                                    folderxpm, folderxpmmask,
+                                    folderopenxpm, folderopenxpmmask,
+                                    FALSE, FALSE);
+       gtk_ctree_expand(ctree, folderview->selected);
+       gtk_ctree_node_set_row_data(ctree, node, new_item);
+       folderview_sort_folders(folderview, folderview->selected, item->folder);
+
+       gtk_clist_thaw(GTK_CLIST(ctree));
+
+       folder_write_list();
+}
+
 static void folderview_rename_folder_cb(FolderView *folderview, guint action,
                                        GtkWidget *widget)
 {
@@ -1251,6 +1545,61 @@ static void folderview_rename_folder_cb(FolderView *folderview, guint action,
        folder_write_list();
 }
 
+static void folderview_rename_mbox_folder_cb(FolderView *folderview,
+                                            guint action,
+                                            GtkWidget *widget)
+{
+       GtkCTree *ctree = GTK_CTREE(folderview->ctree);
+       FolderItem *item;
+       gchar *new_folder;
+       gchar *message;
+
+       if (!folderview->selected) return;
+
+       item = gtk_ctree_node_get_row_data(ctree, folderview->selected);
+       g_return_if_fail(item != NULL);
+       g_return_if_fail(item->path != NULL);
+       g_return_if_fail(item->folder != NULL);
+
+       message = g_strdup_printf(_("Input new name for `%s':"),
+                                 g_basename(item->path));
+       new_folder = input_dialog(_("Rename folder"), message,
+                                 g_basename(item->path));
+       g_free(message);
+       if (!new_folder) return;
+
+       if (folderview_find_by_name
+               (ctree, GTK_CTREE_ROW(folderview->selected)->parent,
+                new_folder)) {
+               alertpanel_error(_("The folder `%s' already exists."),
+                                new_folder);
+               g_free(new_folder);
+               return;
+       }
+
+       if (item->folder->rename_folder(item->folder, item, new_folder) < 0) {
+               g_free(new_folder);
+               return;
+       }
+       g_free(new_folder);
+
+       gtk_clist_freeze(GTK_CLIST(ctree));
+
+       folderview_update_node(folderview, folderview->selected);
+       folderview_sort_folders(folderview,
+                               GTK_CTREE_ROW(folderview->selected)->parent,
+                               item->folder);
+       if (folderview->opened == folderview->selected) {
+               if (!GTK_CTREE_ROW(folderview->opened)->children)
+                       gtk_ctree_expand(ctree, folderview->opened);
+               summary_show(folderview->summaryview, item, FALSE);
+       }
+
+       gtk_clist_thaw(GTK_CLIST(ctree));
+
+       folder_write_list();
+}
+
 static void folderview_delete_folder_cb(FolderView *folderview, guint action,
                                        GtkWidget *widget)
 {
@@ -1276,7 +1625,8 @@ static void folderview_delete_folder_cb(FolderView *folderview, guint action,
        if (avalue != G_ALERTDEFAULT) return;
 
        if (item->folder->remove_folder(item->folder, item) < 0) {
-               g_warning(_("can't remove folder `%s'\n"), item->path);
+               alertpanel_error(_("Can't remove the folder `%s'."),
+                                item->path);
                return;
        }
 
@@ -1333,6 +1683,7 @@ static void folderview_new_imap_folder_cb(FolderView *folderview, guint action,
        FolderItem *item;
        FolderItem *new_item;
        gchar *new_folder;
+       gchar *p;
 
        if (!folderview->selected) return;
 
@@ -1342,12 +1693,16 @@ static void folderview_new_imap_folder_cb(FolderView *folderview, guint action,
        g_return_if_fail(item->folder->type == F_IMAP);
        g_return_if_fail(item->folder->account != NULL);
 
-       new_folder = input_dialog(_("New folder"),
-                                 _("Input the name of new folder:"),
-                                 _("NewFolder"));
+       new_folder = input_dialog
+               (_("New folder"),
+                _("Input the name of new folder:\n"
+                  "(if you want to create a folder to store subfolders,\n"
+                  " append `/' at the end of the name)"),
+                _("NewFolder"));
        if (!new_folder) return;
 
-       if (strchr(new_folder, G_DIR_SEPARATOR) != NULL) {
+       if ((p = strchr(new_folder, G_DIR_SEPARATOR)) != NULL &&
+           *(p + 1) != '\0') {
                alertpanel_error(_("`%c' can't be included in folder name."),
                                 G_DIR_SEPARATOR);
                g_free(new_folder);
@@ -1407,7 +1762,8 @@ static void folderview_rm_imap_folder_cb(FolderView *folderview, guint action,
        if (avalue != G_ALERTDEFAULT) return;
 
        if (item->folder->remove_folder(item->folder, item) < 0) {
-               g_warning(_("can't remove folder `%s'\n"), item->path);
+               alertpanel_error(_("Can't remove the folder `%s'."),
+                                item->path);
                return;
        }
 
@@ -1670,3 +2026,18 @@ static gint folderview_compare_name(gconstpointer a, gconstpointer b)
        if (!item->path) return -1;
        return strcmp2(g_basename(item->path), name);
 }
+
+static void folderview_scoring_cb(FolderView *folderview, guint action,
+                                  GtkWidget *widget)
+{
+       GtkCTree *ctree = GTK_CTREE(folderview->ctree);
+       FolderItem *item;
+
+       if (!folderview->selected) return;
+
+       item = gtk_ctree_node_get_row_data(ctree, folderview->selected);
+       g_return_if_fail(item != NULL);
+       g_return_if_fail(item->folder != NULL);
+
+       prefs_scoring_open(item);
+}