Sylpheed

/*

 * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client

 * Copyright (C) 1999-2004 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

 * the Free Software Foundation; either version 2 of the License, or

 * (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

 */

#include "defs.h"

#include <glib.h>

#include <gdk/gdkkeysyms.h>

#include <gtk/gtkwidget.h>

#include <gtk/gtkscrolledwindow.h>

#include <gtk/gtkctree.h>

#include <gtk/gtkcontainer.h>

#include <gtk/gtkclist.h>

#include <gtk/gtkstyle.h>

#include <gtk/gtksignal.h>

#include <gtk/gtkmain.h>

#include <gtk/gtkstatusbar.h>

#include <gtk/gtkmenu.h>

#include <gtk/gtkmenuitem.h>

#include <gtk/gtkitemfactory.h>

#include <stdio.h>

#include <string.h>

#include <stdlib.h>

#include "intl.h"

#include "main.h"

#include "mainwindow.h"

#include "folderview.h"

#include "summaryview.h"

#include "summary_search.h"

#include "inputdialog.h"

#include "grouplistdialog.h"

#include "manage_window.h"

#include "alertpanel.h"

#include "menu.h"

#include "stock_pixmap.h"

#include "statusbar.h"

#include "procmsg.h"

#include "utils.h"

#include "gtkutils.h"

#include "prefs_common.h"

#include "prefs_account.h"

#include "prefs_filter.h"

#include "prefs_folder_item.h"

#include "account.h"

#include "folder.h"

#include "inc.h"

typedef enum

{

        COL_FOLDER        = 0,

        COL_NEW                = 1,

        COL_UNREAD        = 2,

        COL_TOTAL        = 3

} FolderColumnPos;

#define N_FOLDER_COLS                4

#define COL_FOLDER_WIDTH        150

#define COL_NUM_WIDTH                32

#define STATUSBAR_PUSH(mainwin, str) \

{ \

        gtk_statusbar_push(GTK_STATUSBAR(mainwin->statusbar), \

                           mainwin->folderview_cid, str); \

        gtkut_widget_wait_for_draw(mainwin->statusbar); \

}

#define STATUSBAR_POP(mainwin) \

{ \

        gtk_statusbar_pop(GTK_STATUSBAR(mainwin->statusbar), \

                          mainwin->folderview_cid); \

}

static GList *folderview_list = NULL;

static GtkStyle *bold_style;

static GtkStyle *bold_color_style;

static GdkPixmap *inboxxpm;

static GdkBitmap *inboxxpmmask;

static GdkPixmap *outboxxpm;

static GdkBitmap *outboxxpmmask;

static GdkPixmap *folderxpm;

static GdkBitmap *folderxpmmask;

static GdkPixmap *folderopenxpm;

static GdkBitmap *folderopenxpmmask;

static GdkPixmap *foldernoselectxpm;

static GdkBitmap *foldernoselectxpmmask;

static GdkPixmap *trashxpm;

static GdkBitmap *trashxpmmask;

static void folderview_select_node         (FolderView        *folderview,

                                          GtkCTreeNode        *node);

static void folderview_set_folders         (FolderView        *folderview);

static void folderview_sort_folders         (FolderView        *folderview,

                                          GtkCTreeNode        *root,

                                          Folder        *folder);

static void folderview_append_folder         (FolderView        *folderview,

                                          Folder        *folder);

static void folderview_update_node         (FolderView        *folderview,

                                          GtkCTreeNode        *node);

static gint folderview_clist_compare        (GtkCList        *clist,

                                         gconstpointer         ptr1,

                                         gconstpointer         ptr2);

/* callback functions */

static gboolean folderview_button_pressed        (GtkWidget        *ctree,

                                                 GdkEventButton        *event,

                                                 FolderView        *folderview);

static gboolean folderview_button_released        (GtkWidget        *ctree,

                                                 GdkEventButton        *event,

                                                 FolderView        *folderview);

static gboolean folderview_key_pressed        (GtkWidget        *widget,

                                         GdkEventKey        *event,

                                         FolderView        *folderview);

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,

                                         gint                 column,

                                         gint                 width,

                                         FolderView        *folderview);

static void folderview_download_cb        (FolderView        *folderview,

                                         guint                 action,

                                         GtkWidget        *widget);

static void folderview_update_tree_cb        (FolderView        *folderview,

                                         guint                 action,

                                         GtkWidget        *widget);

static void folderview_new_folder_cb        (FolderView        *folderview,

                                         guint                 action,

                                         GtkWidget        *widget);

static void folderview_rename_folder_cb        (FolderView        *folderview,

                                         guint                 action,

                                         GtkWidget        *widget);

static void folderview_delete_folder_cb        (FolderView        *folderview,

                                         guint                 action,

                                         GtkWidget        *widget);

static void folderview_empty_trash_cb        (FolderView        *folderview,

                                         guint                 action,

                                         GtkWidget        *widget);

static void folderview_remove_mailbox_cb(FolderView        *folderview,

                                         guint                 action,

                                         GtkWidget        *widget);

static void folderview_rm_imap_server_cb (FolderView        *folderview,

                                          guint                 action,

                                          GtkWidget        *widget);

static void folderview_new_news_group_cb(FolderView        *folderview,

                                         guint                 action,

                                         GtkWidget        *widget);

static void folderview_rm_news_group_cb        (FolderView        *folderview,

                                         guint                 action,

                                         GtkWidget        *widget);

static void folderview_rm_news_server_cb(FolderView        *folderview,

                                         guint                 action,

                                         GtkWidget        *widget);

static void folderview_search_cb        (FolderView        *folderview,

                                         guint                 action,

                                         GtkWidget        *widget);

static void folderview_property_cb        (FolderView        *folderview,

                                         guint                 action,

                                         GtkWidget        *widget);

static gboolean folderview_drag_motion_cb(GtkWidget      *widget,

                                          GdkDragContext *context,

                                          gint            x,

                                          gint            y,

                                          guint           time,

                                          FolderView     *folderview);

static void folderview_drag_leave_cb     (GtkWidget        *widget,

                                          GdkDragContext   *context,

                                          guint             time,

                                          FolderView       *folderview);

static void folderview_drag_received_cb  (GtkWidget        *widget,

                                          GdkDragContext   *context,

                                          gint              x,

                                          gint              y,

                                          GtkSelectionData *data,

                                          guint             info,

                                          guint             time,

                                          FolderView       *folderview);

static GtkItemFactoryEntry folderview_mail_popup_entries[] =

{

        {N_("/Create _new folder..."),        NULL, folderview_new_folder_cb,    0, NULL},

        {N_("/_Rename folder..."),        NULL, folderview_rename_folder_cb, 0, NULL},

        {N_("/_Delete folder"),                NULL, folderview_delete_folder_cb, 0, NULL},

        {N_("/---"),                        NULL, NULL, 0, "<Separator>"},

        {N_("/Empty _trash"),                NULL, folderview_empty_trash_cb, 0, NULL},

        {N_("/---"),                        NULL, NULL, 0, "<Separator>"},

        {N_("/_Check for new messages"),

                                        NULL, folderview_update_tree_cb, 0, NULL},

        {N_("/R_ebuild folder tree"),        NULL, folderview_update_tree_cb, 1, NULL},

        {N_("/---"),                        NULL, NULL, 0, "<Separator>"},

        {N_("/_Search messages..."),        NULL, folderview_search_cb, 0, NULL},

        {N_("/_Properties..."),                NULL, folderview_property_cb, 0, NULL}

};

static GtkItemFactoryEntry folderview_imap_popup_entries[] =

{

        {N_("/Create _new folder..."),        NULL, folderview_new_folder_cb,    0, NULL},

        {N_("/_Rename folder..."),        NULL, folderview_rename_folder_cb, 0, NULL},

        {N_("/_Delete folder"),                NULL, folderview_delete_folder_cb, 0, NULL},

        {N_("/---"),                        NULL, NULL, 0, "<Separator>"},

        {N_("/Empty _trash"),                NULL, folderview_empty_trash_cb, 0, NULL},

        {N_("/---"),                        NULL, NULL, 0, "<Separator>"},

        {N_("/Down_load"),                NULL, folderview_download_cb, 0, NULL},

        {N_("/---"),                        NULL, NULL, 0, "<Separator>"},

        {N_("/_Check for new messages"),

                                        NULL, folderview_update_tree_cb, 0, NULL},

        {N_("/R_ebuild folder tree"),        NULL, folderview_update_tree_cb, 1, NULL},

        {N_("/---"),                        NULL, NULL, 0, "<Separator>"},

        {N_("/_Search messages..."),        NULL, folderview_search_cb, 0, NULL},

        {N_("/_Properties..."),                NULL, folderview_property_cb, 0, NULL}

};

static GtkItemFactoryEntry folderview_news_popup_entries[] =

{

        {N_("/Su_bscribe to newsgroup..."),

                                        NULL, folderview_new_news_group_cb, 0, NULL},

        {N_("/_Remove newsgroup"),        NULL, folderview_rm_news_group_cb, 0, NULL},

        {N_("/---"),                        NULL, NULL, 0, "<Separator>"},

        {N_("/Down_load"),                NULL, folderview_download_cb, 0, NULL},

        {N_("/---"),                        NULL, NULL, 0, "<Separator>"},

        {N_("/_Check for new messages"),

                                        NULL, folderview_update_tree_cb, 0, NULL},

        {N_("/---"),                        NULL, NULL, 0, "<Separator>"},

        {N_("/_Search messages..."),        NULL, folderview_search_cb, 0, NULL},

        {N_("/_Properties..."),                NULL, folderview_property_cb, 0, NULL}

};

FolderView *folderview_create(void)

{

        FolderView *folderview;

        GtkWidget *scrolledwin;

        GtkWidget *ctree;

        gchar *titles[N_FOLDER_COLS];

        GtkWidget *mail_popup;

        GtkWidget *news_popup;

        GtkWidget *imap_popup;

        GtkItemFactory *mail_factory;

        GtkItemFactory *news_factory;

        GtkItemFactory *imap_factory;

        gint n_entries;

        gint i;

        debug_print(_("Creating folder view...\n"));

        folderview = g_new0(FolderView, 1);

        titles[COL_FOLDER] = _("Folder");

        titles[COL_NEW]    = _("New");

        titles[COL_UNREAD] = _("Unread");

        titles[COL_TOTAL]  = _("#");

        scrolledwin = gtk_scrolled_window_new(NULL, NULL);

        gtk_scrolled_window_set_policy

                (GTK_SCROLLED_WINDOW(scrolledwin),

                 GTK_POLICY_AUTOMATIC,

                 prefs_common.folderview_vscrollbar_policy);

        gtk_widget_set_size_request(scrolledwin,

                                    prefs_common.folderview_width,

                                    prefs_common.folderview_height);

        ctree = gtk_ctree_new_with_titles(N_FOLDER_COLS, COL_FOLDER, titles);

        gtk_container_add(GTK_CONTAINER(scrolledwin), ctree);

        gtk_clist_set_selection_mode(GTK_CLIST(ctree), GTK_SELECTION_BROWSE);

        gtk_clist_set_column_justification(GTK_CLIST(ctree), COL_NEW,

                                           GTK_JUSTIFY_RIGHT);

        gtk_clist_set_column_justification(GTK_CLIST(ctree), COL_UNREAD,

                                           GTK_JUSTIFY_RIGHT);

        gtk_clist_set_column_justification(GTK_CLIST(ctree), COL_TOTAL,

                                           GTK_JUSTIFY_RIGHT);

        gtk_clist_set_column_width(GTK_CLIST(ctree), COL_FOLDER,

                                   prefs_common.folder_col_folder);

        gtk_clist_set_column_width(GTK_CLIST(ctree), COL_NEW,

                                   prefs_common.folder_col_new);

        gtk_clist_set_column_width(GTK_CLIST(ctree), COL_UNREAD,        

                                   prefs_common.folder_col_unread);

        gtk_clist_set_column_width(GTK_CLIST(ctree), COL_TOTAL,

                                   prefs_common.folder_col_total);

        gtk_ctree_set_line_style(GTK_CTREE(ctree), GTK_CTREE_LINES_DOTTED);

        gtk_ctree_set_expander_style(GTK_CTREE(ctree),

                                     GTK_CTREE_EXPANDER_SQUARE);

        gtk_ctree_set_indent(GTK_CTREE(ctree), CTREE_INDENT);

        gtk_clist_set_compare_func(GTK_CLIST(ctree), folderview_clist_compare);

        /* 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,

                                       GTK_CAN_FOCUS);

        /* popup menu */

        n_entries = sizeof(folderview_mail_popup_entries) /

                sizeof(folderview_mail_popup_entries[0]);

        mail_popup = menu_create_items(folderview_mail_popup_entries,

                                       n_entries,

                                       "<MailFolder>", &mail_factory,

                                       folderview);

        n_entries = sizeof(folderview_imap_popup_entries) /

                sizeof(folderview_imap_popup_entries[0]);

        imap_popup = menu_create_items(folderview_imap_popup_entries,

                                       n_entries,

                                       "<IMAPFolder>", &imap_factory,

                                       folderview);

        n_entries = sizeof(folderview_news_popup_entries) /

                sizeof(folderview_news_popup_entries[0]);

        news_popup = menu_create_items(folderview_news_popup_entries,

                                       n_entries,

                                       "<NewsFolder>", &news_factory,

                                       folderview);

        g_signal_connect(G_OBJECT(ctree), "key_press_event",

                         G_CALLBACK(folderview_key_pressed),

                         folderview);

        g_signal_connect(G_OBJECT(ctree), "button_press_event",

                         G_CALLBACK(folderview_button_pressed),

                         folderview);

        g_signal_connect(G_OBJECT(ctree), "button_release_event",

                         G_CALLBACK(folderview_button_released),

                         folderview);

        g_signal_connect(G_OBJECT(ctree), "tree_select_row",

                         G_CALLBACK(folderview_selected), folderview);

        g_signal_connect_after(G_OBJECT(ctree), "tree_expand",

                               G_CALLBACK(folderview_tree_expanded),

                               folderview);

        g_signal_connect_after(G_OBJECT(ctree), "tree_collapse",

                               G_CALLBACK(folderview_tree_collapsed),

                               folderview);

        g_signal_connect(G_OBJECT(ctree), "resize_column",

                         G_CALLBACK(folderview_col_resized), folderview);

        g_signal_connect(G_OBJECT(mail_popup), "selection_done",

                         G_CALLBACK(folderview_popup_close), folderview);

        g_signal_connect(G_OBJECT(imap_popup), "selection_done",

                         G_CALLBACK(folderview_popup_close), folderview);

        g_signal_connect(G_OBJECT(news_popup), "selection_done",

                         G_CALLBACK(folderview_popup_close), folderview);

        /* drop callback */

        gtk_drag_dest_set(ctree, GTK_DEST_DEFAULT_ALL &

                          ~GTK_DEST_DEFAULT_HIGHLIGHT,

                          summary_drag_types, 1,

                          GDK_ACTION_MOVE | GDK_ACTION_COPY);

        g_signal_connect(G_OBJECT(ctree), "drag_motion",

                         G_CALLBACK(folderview_drag_motion_cb), folderview);

        g_signal_connect(G_OBJECT(ctree), "drag_leave",

                         G_CALLBACK(folderview_drag_leave_cb), folderview);

        g_signal_connect(G_OBJECT(ctree), "drag_data_received",

                         G_CALLBACK(folderview_drag_received_cb), folderview);

        folderview->scrolledwin  = scrolledwin;

        folderview->ctree        = ctree;

        folderview->mail_popup   = mail_popup;

        folderview->mail_factory = mail_factory;

        folderview->imap_popup   = imap_popup;

        folderview->imap_factory = imap_factory;

        folderview->news_popup   = news_popup;

        folderview->news_factory = news_factory;

        gtk_widget_show_all(scrolledwin);

        folderview_list = g_list_append(folderview_list, folderview);

        return folderview;

}

void folderview_init(FolderView *folderview)

{

        GtkWidget *ctree = folderview->ctree;

        gtk_widget_realize(ctree);

        stock_pixmap_gdk(ctree, STOCK_PIXMAP_INBOX, &inboxxpm, &inboxxpmmask);

        stock_pixmap_gdk(ctree, STOCK_PIXMAP_OUTBOX,

                         &outboxxpm, &outboxxpmmask);

        stock_pixmap_gdk(ctree, STOCK_PIXMAP_DIR_CLOSE,

                         &folderxpm, &folderxpmmask);

        stock_pixmap_gdk(ctree, STOCK_PIXMAP_DIR_OPEN,

                         &folderopenxpm, &folderopenxpmmask);

        stock_pixmap_gdk(ctree, STOCK_PIXMAP_DIR_NOSELECT,

                         &foldernoselectxpm, &foldernoselectxpmmask);

        stock_pixmap_gdk(ctree, STOCK_PIXMAP_TRASH, &trashxpm, &trashxpmmask);

        if (!bold_style) {

                bold_style = gtk_style_copy(gtk_widget_get_style(ctree));

                pango_font_description_set_weight

                        (bold_style->font_desc, PANGO_WEIGHT_BOLD);

                bold_color_style = gtk_style_copy(bold_style);

                bold_color_style->fg[GTK_STATE_NORMAL] = folderview->color_new;

        }

}

void folderview_set(FolderView *folderview)

{

        GtkCTree *ctree = GTK_CTREE(folderview->ctree);

        MainWindow *mainwin = folderview->mainwin;

        debug_print(_("Setting folder info...\n"));

        STATUSBAR_PUSH(mainwin, _("Setting folder info..."));

        main_window_cursor_wait(mainwin);

        folderview->selected = NULL;

        folderview->opened = NULL;

        gtk_clist_freeze(GTK_CLIST(ctree));

        gtk_clist_clear(GTK_CLIST(ctree));

        gtk_clist_thaw(GTK_CLIST(ctree));

        gtk_clist_freeze(GTK_CLIST(ctree));

        folderview_set_folders(folderview);

        gtk_clist_thaw(GTK_CLIST(ctree));

        main_window_cursor_normal(mainwin);

        STATUSBAR_POP(mainwin);

}

void folderview_set_all(void)

{

        GList *list;

        for (list = folderview_list; list != NULL; list = list->next)

                folderview_set((FolderView *)list->data);

}

void folderview_select(FolderView *folderview, FolderItem *item)

{

        GtkCTree *ctree = GTK_CTREE(folderview->ctree);

        GtkCTreeNode *node;

        if (!item) return;

        node = gtk_ctree_find_by_row_data(ctree, NULL, item);

        if (node) folderview_select_node(folderview, node);

}

static void folderview_select_node(FolderView *folderview, GtkCTreeNode *node)

{

        GtkCTree *ctree = GTK_CTREE(folderview->ctree);

        g_return_if_fail(node != NULL);

        folderview->open_folder = TRUE;

        gtkut_ctree_set_focus_row(ctree, node);

        gtk_ctree_select(ctree, node);

        if (folderview->summaryview->folder_item &&

            folderview->summaryview->folder_item->total > 0)

                gtk_widget_grab_focus(folderview->summaryview->ctree);

        else

                gtk_widget_grab_focus(folderview->ctree);

        gtkut_ctree_expand_parent_all(ctree, node);

}

void folderview_unselect(FolderView *folderview)

{

        if (folderview->opened && !GTK_CTREE_ROW(folderview->opened)->children)

                gtk_ctree_collapse

                        (GTK_CTREE(folderview->ctree), folderview->opened);

        folderview->selected = folderview->opened = NULL;

}

static GtkCTreeNode *folderview_find_next_unread(GtkCTree *ctree,

                                                 GtkCTreeNode *node)

{

        FolderItem *item;

        if (node)

                node = gtkut_ctree_node_next(ctree, node);

        else

                node = GTK_CTREE_NODE(GTK_CLIST(ctree)->row_list);

        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->stype != F_TRASH)

                        return node;

        }

        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);

}

FolderItem *folderview_get_selected_item(FolderView *folderview)

{

        GtkCTree *ctree = GTK_CTREE(folderview->ctree);

        if (!folderview->selected) return NULL;

        return gtk_ctree_node_get_row_data(ctree, folderview->selected);

}

void folderview_update_msg_num(FolderView *folderview, GtkCTreeNode *row)

{

        GtkCTree *ctree = GTK_CTREE(folderview->ctree);

        static GtkCTreeNode *prev_row = NULL;

        FolderItem *item;

        gint new, unread, total;

        gchar *new_str, *unread_str, *total_str;

        if (!row) return;

        item = gtk_ctree_node_get_row_data(ctree, row);

        if (!item) return;

        gtk_ctree_node_get_text(ctree, row, COL_NEW, &new_str);

        gtk_ctree_node_get_text(ctree, row, COL_UNREAD, &unread_str);

        gtk_ctree_node_get_text(ctree, row, COL_TOTAL, &total_str);

        new = atoi(new_str);

        unread = atoi(unread_str);

        total = atoi(total_str);

        if (prev_row     == row    &&

            item->new    == new    &&

            item->unread == unread &&

            item->total  == total)

                return;

        prev_row = row;

        folderview_update_node(folderview, row);

}

void folderview_append_item(FolderItem *item)

{

        FolderItem *parent;

        GList *list;

        g_return_if_fail(item != NULL);

        g_return_if_fail(item->folder != NULL);

        g_return_if_fail(item->parent != NULL);

        parent = item->parent;

        for (list = folderview_list; list != NULL; list = list->next) {

                FolderView *folderview = (FolderView *)list->data;

                GtkCTree *ctree = GTK_CTREE(folderview->ctree);

                GtkCTreeNode *node, *child;

                node = gtk_ctree_find_by_row_data(ctree, NULL, parent);

                if (node) {

                        child = gtk_ctree_find_by_row_data(ctree, node, item);

                        if (!child) {

                                gchar *text[N_FOLDER_COLS] =

                                        {NULL, "0", "0", "0"};

                                gtk_clist_freeze(GTK_CLIST(ctree));

                                text[COL_FOLDER] = item->name;

                                child = gtk_ctree_insert_node

                                        (ctree, node, NULL, text,

                                         FOLDER_SPACING,

                                         folderxpm, folderxpmmask,

                                         folderopenxpm, folderopenxpmmask,

                                         FALSE, FALSE);

                                gtk_ctree_node_set_row_data(ctree, child, item);

                                gtk_ctree_expand(ctree, node);

                                folderview_update_node(folderview, child);

                                folderview_sort_folders(folderview, node,

                                                        item->folder);

                                gtk_clist_thaw(GTK_CLIST(ctree));

                        }

                }

        }

}

static void folderview_set_folders(FolderView *folderview)

{

        GList *list;

        list = folder_get_list();

        for (; list != NULL; list = list->next)

                folderview_append_folder(folderview, FOLDER(list->data));

}

static void folderview_scan_tree_func(Folder *folder, FolderItem *item,

                                      gpointer data)

{

        GList *list;

        gchar *rootpath;

        if (FOLDER_IS_LOCAL(folder))

                rootpath = LOCAL_FOLDER(folder)->rootpath;

        else if (FOLDER_TYPE(folder) == F_IMAP && folder->account &&

                 folder->account->recv_server)

                rootpath = folder->account->recv_server;

        else if (FOLDER_TYPE(folder) == F_NEWS && folder->account &&

                 folder->account->nntp_server)

                rootpath = folder->account->nntp_server;

        else

                return;

        for (list = folderview_list; list != NULL; list = list->next) {

                FolderView *folderview = (FolderView *)list->data;

                MainWindow *mainwin = folderview->mainwin;

                gchar *str;

                if (item->path)

                        str = g_strdup_printf(_("Scanning folder %s%c%s ..."),

                                              rootpath, G_DIR_SEPARATOR,

                                              item->path);

                else

                        str = g_strdup_printf(_("Scanning folder %s ..."),

                                              rootpath);

                STATUSBAR_PUSH(mainwin, str);

                STATUSBAR_POP(mainwin);

                g_free(str);

        }

}

static GtkWidget *label_window_create(const gchar *str)

{

        GtkWidget *window;

        GtkWidget *label;

        window = gtk_window_new(GTK_WINDOW_TOPLEVEL);

        gtk_widget_set_size_request(window, 380, 60);

        gtk_container_set_border_width(GTK_CONTAINER(window), 8);

        gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);

        gtk_window_set_title(GTK_WINDOW(window), str);

        gtk_window_set_modal(GTK_WINDOW(window), TRUE);

        gtk_window_set_policy(GTK_WINDOW(window), FALSE, FALSE, FALSE);

        manage_window_set_transient(GTK_WINDOW(window));

        label = gtk_label_new(str);

        gtk_container_add(GTK_CONTAINER(window), label);

        gtk_widget_show(label);

        gtk_widget_show_now(window);

        return window;

}

static void folderview_rescan_tree(FolderView *folderview, Folder *folder)

{

        GtkWidget *window;

        AlertValue avalue;

        g_return_if_fail(folder != NULL);

        if (!folder->klass->scan_tree) return;

        avalue = alertpanel

                (_("Rebuild folder tree"),

                 _("The folder tree will be rebuilt. Continue?"),

                 _("Yes"), _("No"), NULL);

        if (avalue != G_ALERTDEFAULT) return;

        if (!FOLDER_IS_LOCAL(folder) &&

            !main_window_toggle_online_if_offline(folderview->mainwin))

                return;

        inc_lock();

        window = label_window_create(_("Rebuilding folder tree..."));

        summary_show(folderview->summaryview, NULL, FALSE);

        folder_set_ui_func(folder, folderview_scan_tree_func, NULL);

        if (folder->klass->scan_tree(folder) < 0)

                alertpanel_error(_("Rebuilding of the folder tree failed."));

        folder_set_ui_func(folder, NULL, NULL);

        folder_write_list();

        folderview_set_all();

        statusbar_pop_all();

        gtk_widget_destroy(window);

        inc_unlock();

}

#if 0

void folderview_rescan_all(void)

{

        GList *list;

        GtkWidget *window;

        inc_lock();

        window = label_window_create(_("Rebuilding all folder trees..."));

        list = folder_get_list();

        for (; list != NULL; list = list->next) {

                Folder *folder = list->data;

                if (!folder->klass->scan_tree) continue;

                folder_set_ui_func(folder, folderview_scan_tree_func, NULL);

                folder->klass->scan_tree(folder);

                folder_set_ui_func(folder, NULL, NULL);

        }

        folder_write_list();

        folderview_set_all();

        gtk_widget_destroy(window);

        inc_unlock();

}

#endif

void folderview_check_new(Folder *folder)

{

        GList *list;

        FolderItem *item;

        FolderView *folderview;

        GtkCTree *ctree;

        GtkCTreeNode *node;

        for (list = folderview_list; list != NULL; list = list->next) {

                folderview = (FolderView *)list->data;

                ctree = GTK_CTREE(folderview->ctree);

                if (folder && !FOLDER_IS_LOCAL(folder)) {

                        if (!main_window_toggle_online_if_offline

                                (folderview->mainwin))

                                return;

                }

                inc_lock();

                main_window_lock(folderview->mainwin);

                gtk_widget_set_sensitive(folderview->ctree, FALSE);

                for (node = GTK_CTREE_NODE(GTK_CLIST(ctree)->row_list);

                     node != NULL; node = gtkut_ctree_node_next(ctree, node)) {

                        item = gtk_ctree_node_get_row_data(ctree, node);

                        if (!item || !item->path || !item->folder) continue;

                        if (item->no_select) continue;

                        if (folder && folder != item->folder) continue;

                        if (!folder && !FOLDER_IS_LOCAL(item->folder)) continue;

                        folderview_scan_tree_func(item->folder, item, NULL);

                        if (folder_item_scan(item) < 0) {

                                if (folder && !FOLDER_IS_LOCAL(folder))

                                        break;

                        }

                        folderview_update_node(folderview, node);

                }

                gtk_widget_set_sensitive(folderview->ctree, TRUE);

                main_window_unlock(folderview->mainwin);

                inc_unlock();

                statusbar_pop_all();

        }

        folder_write_list();

}

void folderview_check_new_all(void)

{

        GList *list;

        GtkWidget *window;

        FolderView *folderview;

        folderview = (FolderView *)folderview_list->data;

        inc_lock();

        main_window_lock(folderview->mainwin);

        window = label_window_create

                (_("Checking for new messages in all folders..."));

        list = folder_get_list();

        for (; list != NULL; list = list->next) {

                Folder *folder = list->data;

                folderview_check_new(folder);

        }

        gtk_widget_destroy(window);

        main_window_unlock(folderview->mainwin);

        inc_unlock();

}

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 = NULL;

        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);

        switch (item->stype) {

        case F_INBOX:

                xpm = openxpm = inboxxpm;

                mask = openmask = inboxxpmmask;

                name = g_strdup(FOLDER_IS_LOCAL(item->folder) &&

                                !strcmp2(item->name, INBOX_DIR) ? _("Inbox") :

                                item->name);

                break;

        case F_OUTBOX:

                xpm = openxpm = outboxxpm;

                mask = openmask = outboxxpmmask;

                name = g_strdup(FOLDER_IS_LOCAL(item->folder) &&

                                !strcmp2(item->name, OUTBOX_DIR) ? _("Sent") :

                                item->name);

                break;

        case F_QUEUE:

                xpm = openxpm = outboxxpm;

                mask = openmask = outboxxpmmask;

                name = g_strdup(FOLDER_IS_LOCAL(item->folder) &&

                                !strcmp2(item->name, QUEUE_DIR) ? _("Queue") :

                                item->name);

                break;

        case F_TRASH:

                xpm = openxpm = trashxpm;

                mask = openmask = trashxpmmask;

                name = g_strdup(FOLDER_IS_LOCAL(item->folder) &&

                                !strcmp2(item->name, TRASH_DIR) ? _("Trash") :

                                item->name);

                break;

        case F_DRAFT:

                xpm = folderxpm;

                mask = folderxpmmask;

                openxpm = folderopenxpm;

                openmask = folderopenxpmmask;

                name = g_strdup(FOLDER_IS_LOCAL(item->folder) &&

                                !strcmp2(item->name, DRAFT_DIR) ? _("Drafts") :

                                item->name);

                break;

        default:

                if (item->no_select) {

                        xpm = openxpm = foldernoselectxpm;

                        mask = openmask = foldernoselectxpmmask;

                } else {

                        xpm = folderxpm;

                        mask = folderxpmmask;

                        openxpm = folderopenxpm;

                        openmask = folderopenxpmmask;

                }

                if (!item->parent) {

                        switch (FOLDER_TYPE(item->folder)) {

                        case F_MH:

                                name = " (MH)"; break;

                        case F_IMAP:

                                name = " (IMAP4)"; break;

                        case F_NEWS:

                                name = " (News)"; break;

                        default:

                                name = "";

                        }

                        name = g_strconcat(item->name, name, NULL);

                } else {

                        if (FOLDER_TYPE(item->folder) == F_NEWS &&

                            item->path &&

                            !strcmp2(item->name, item->path))

                                name = get_abbrev_newsgroup_name

                                        (item->path,

                                         prefs_common.ng_abbrev_len);

                        else

                                name = g_strdup(item->name);

                }

        }

        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);

                g_free(str);

        } else

                gtk_ctree_set_node_info(ctree, node, name, FOLDER_SPACING,

                                        xpm, mask, openxpm, openmask,

                                        FALSE, GTK_CTREE_ROW(node)->expanded);

        g_free(name);

        if (!item->parent) {

                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,  "-");

        } 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));

                gtk_ctree_node_set_text(ctree, node, COL_TOTAL,  itos(item->total));

        }

        if (item->stype == F_OUTBOX || item->stype == F_DRAFT ||

            item->stype == F_TRASH) {

                use_bold = use_color = FALSE;

        } else 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));

        }

        gtk_ctree_node_set_foreground(ctree, node, NULL);

        if (item->no_select)

                gtk_ctree_node_set_foreground(ctree, node,

                                              &folderview->color_noselect);

        else if (use_bold && use_color)

                style = bold_color_style;

        else if (use_bold)

                style = bold_style;

        else if (use_color)

                gtk_ctree_node_set_foreground(ctree, node,

                                              &folderview->color_new);

        gtk_ctree_node_set_row_style(ctree, node, style);

        item->updated = FALSE;

        if ((node = gtkut_ctree_find_collapsed_parent(ctree, node)) != NULL)

                folderview_update_node(folderview, node);

}

void folderview_update_item(FolderItem *item, gboolean update_summary)

{

        GList *list;

        FolderView *folderview;

        GtkCTree *ctree;

        GtkCTreeNode *node;

        g_return_if_fail(item != NULL);

        for (list = folderview_list; list != NULL; list = list->next) {

                folderview = (FolderView *)list->data;

                ctree = GTK_CTREE(folderview->ctree);

                node = gtk_ctree_find_by_row_data(ctree, NULL, item);

                if (node) {

                        folderview_update_node(folderview, node);

                        if (update_summary && folderview->opened == node)

                                summary_show(folderview->summaryview,

                                             item, FALSE);

                }

        }

}

static void folderview_update_item_foreach_func(gpointer key, gpointer val,

                                                gpointer data)

{

        folderview_update_item((FolderItem *)key, GPOINTER_TO_INT(data));

}

void folderview_update_item_foreach(GHashTable *table, gboolean update_summary)

{

        g_hash_table_foreach(table, folderview_update_item_foreach_func,

                             GINT_TO_POINTER(update_summary));

}

static gboolean folderview_update_all_updated_func(GNode *node, gpointer data)

{

        FolderItem *item;

        item = FOLDER_ITEM(node->data);

        if (item->updated) {

                debug_print("folderview_update_all_updated(): '%s' is updated\n", item->path);

                folderview_update_item(item, GPOINTER_TO_INT(data));

        }

        return FALSE;

}

void folderview_update_all_updated(gboolean update_summary)

{

        GList *list;

        Folder *folder;

        for (list = folder_get_list(); list != NULL; list = list->next) {

                folder = (Folder *)list->data;

                g_node_traverse(folder->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,

                                folderview_update_all_updated_func,

                                GINT_TO_POINTER(update_summary));

        }

}

static gboolean folderview_gnode_func(GtkCTree *ctree, guint depth,

                                      GNode *gnode, GtkCTreeNode *cnode,

                                      gpointer data)

{

        FolderView *folderview = (FolderView *)data;

        FolderItem *item = FOLDER_ITEM(gnode->data);

        g_return_val_if_fail(item != NULL, FALSE);

        gtk_ctree_node_set_row_data(ctree, cnode, item);

        folderview_update_node(folderview, cnode);

        return TRUE;

}

static void folderview_expand_func(GtkCTree *ctree, GtkCTreeNode *node,

                                   gpointer data)

{

        FolderView *folderview = (FolderView *)data;

        FolderItem *item;

        if (GTK_CTREE_ROW(node)->children) {

                item = gtk_ctree_node_get_row_data(ctree, node);

                g_return_if_fail(item != NULL);

                if (!item->collapsed)

                        gtk_ctree_expand(ctree, node);

                else

                        folderview_update_node(folderview, node);

        }

}

#define SET_SPECIAL_FOLDER(ctree, item) \

{ \

        if (item) { \

                GtkCTreeNode *node, *parent, *sibling; \

 \

                node = gtk_ctree_find_by_row_data(ctree, root, item); \

                if (!node) \

                        g_warning("%s not found.\n", item->path); \

                else { \

                        parent = GTK_CTREE_ROW(node)->parent; \

                        if (prev && parent == GTK_CTREE_ROW(prev)->parent) \

                                sibling = GTK_CTREE_ROW(prev)->sibling; \

                        else \

                                sibling = GTK_CTREE_ROW(parent)->children; \

                        while (sibling) { \

                                FolderItem *tmp; \

 \

                                tmp = gtk_ctree_node_get_row_data \

                                        (ctree, sibling); \

                                if (tmp->stype != F_NORMAL) \

                                        sibling = GTK_CTREE_ROW(sibling)->sibling; \

                                else \

                                        break; \

                        } \

                        if (node != sibling) \

                                gtk_ctree_move(ctree, node, parent, sibling); \

                } \

 \

                prev = node; \

        } \

}

static void folderview_sort_folders(FolderView *folderview, GtkCTreeNode *root,

                                    Folder *folder)

{

        GtkCTree *ctree = GTK_CTREE(folderview->ctree);

        GtkCTreeNode *prev = NULL;

        gtk_ctree_sort_recursive(ctree, root);

        if (GTK_CTREE_ROW(root)->parent) return;

        SET_SPECIAL_FOLDER(ctree, folder->inbox);

        SET_SPECIAL_FOLDER(ctree, folder->outbox);

        SET_SPECIAL_FOLDER(ctree, folder->draft);

        SET_SPECIAL_FOLDER(ctree, folder->queue);

        SET_SPECIAL_FOLDER(ctree, folder->trash);

}

static void folderview_append_folder(FolderView *folderview, Folder *folder)

{

        GtkCTree *ctree = GTK_CTREE(folderview->ctree);

        GtkCTreeNode *root;

        g_return_if_fail(folder != NULL);

        root = gtk_ctree_insert_gnode(ctree, NULL, NULL, folder->node,

                                      folderview_gnode_func, folderview);

        gtk_ctree_pre_recursive(ctree, root, folderview_expand_func,

                                folderview);

        folderview_sort_folders(folderview, root, folder);

}

void folderview_new_folder(FolderView *folderview)

{

        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);

        switch (FOLDER_TYPE(item->folder)) {

        case F_MH:

        case F_MBOX:

        case F_MAILDIR:

        case F_IMAP:

                folderview_new_folder_cb(folderview, 0, NULL);

                break;

        case F_NEWS:

                folderview_new_news_group_cb(folderview, 0, NULL);

                break;

        default:

                break;

        }

}

void folderview_rename_folder(FolderView *folderview)

{

        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);

        if (!item->path) return;

        if (item->stype != F_NORMAL) return;

        switch (FOLDER_TYPE(item->folder)) {

        case F_MH:

        case F_MBOX:

        case F_MAILDIR:

        case F_IMAP:

                folderview_rename_folder_cb(folderview, 0, NULL);

                break;

        case F_NEWS:

        default:

                break;

        }

}

void folderview_delete_folder(FolderView *folderview)

{

        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);

        if (!item->path) return;

        if (item->stype != F_NORMAL) return;

        switch (FOLDER_TYPE(item->folder)) {

        case F_MH:

        case F_MBOX:

        case F_MAILDIR:

        case F_IMAP:

                folderview_delete_folder_cb(folderview, 0, NULL);

                break;

        case F_NEWS:

                folderview_rm_news_group_cb(folderview, 0, NULL);

                break;

        default:

                break;

        }

}

void folderview_check_new_selected(FolderView *folderview)

{

        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);

        if (item->parent != NULL) return;

        folderview_check_new(item->folder);

}

void folderview_remove_mailbox(FolderView *folderview)

{

        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);

        if (item->parent != NULL) return;

        switch (FOLDER_TYPE(item->folder)) {

        case F_MH:

        case F_MBOX:

        case F_MAILDIR:

                folderview_remove_mailbox_cb(folderview, 0, NULL);

                break;

        case F_IMAP:

                folderview_rm_imap_server_cb(folderview, 0, NULL);

                break;

        case F_NEWS:

                folderview_rm_news_server_cb(folderview, 0, NULL);

                break;

        default:

                break;

        }

}

void folderview_rebuild_tree(FolderView *folderview)

{

        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);

        if (item->parent != NULL) return;