evolution/mail/message-list.c

/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
 * message-list.c: Displays the messages.
 *                 Implements CORBA's Evolution::MessageList
 *
 * Author:
 *     Miguel de Icaza (miguel@helixcode.com)
 *     Bertrand Guiheneuf (bg@aful.org)
 *
 * (C) 2000 Helix Code, Inc.
 */

#include <config.h>
#include <gnome.h>
#include <bonobo/bonobo-main.h>
#include <camel/camel-exception.h>
#include <camel/camel-folder.h>
#include <e-util/ename/e-name-western.h>

#include <string.h>
#include <ctype.h>

#include "message-list.h"
#include "message-thread.h"
#include "mail-threads.h"
#include "mail-tools.h"
#include "mail-mlist-magic.h"
#include "mail-ops.h"
#include "mail-config.h"
#include "mail-vfolder.h"
#include "mail-autofilter.h"
#include "mail.h"

#include "Mail.h"

#include <gal/util/e-util.h>
#include <gal/widgets/e-gui-utils.h>
#include <gal/widgets/e-popup-menu.h>
#include <gal/e-table/e-table-header-item.h>
#include <gal/e-table/e-table-item.h>

#include "art/mail-new.xpm"
#include "art/mail-read.xpm"
#include "art/mail-replied.xpm"
#include "art/attachment.xpm"
#include "art/empty.xpm"
#include "art/score-lowest.xpm"
#include "art/score-lower.xpm"
#include "art/score-low.xpm"
#include "art/score-normal.xpm"
#include "art/score-high.xpm"
#include "art/score-higher.xpm"
#include "art/score-highest.xpm"

/*
 * Default sizes for the ETable display
 *
 */
#define N_CHARS(x) (CHAR_WIDTH * (x))

#define COL_ICON_WIDTH         (16)
#define COL_ATTACH_WIDTH       (16)
#define COL_CHECK_BOX_WIDTH    (16)
#define COL_FROM_EXPANSION     (24.0)
#define COL_FROM_WIDTH_MIN     (32)
#define COL_SUBJECT_EXPANSION  (30.0)
#define COL_SUBJECT_WIDTH_MIN  (32)
#define COL_SENT_EXPANSION     (24.0)
#define COL_SENT_WIDTH_MIN     (32)
#define COL_RECEIVED_EXPANSION (20.0)
#define COL_RECEIVED_WIDTH_MIN (32)
#define COL_TO_EXPANSION       (24.0)
#define COL_TO_WIDTH_MIN       (32)
#define COL_SIZE_EXPANSION     (6.0)
#define COL_SIZE_WIDTH_MIN     (32)

#define PARENT_TYPE (bonobo_object_get_type ())

static BonoboObjectClass *message_list_parent_class;
static POA_Evolution_MessageList__vepv evolution_message_list_vepv;

static void on_cursor_change_cmd (ETableScrolled *table, int row, gpointer user_data);
static void select_row (ETableScrolled *table, gpointer user_data);
static gint on_right_click (ETableScrolled *table, gint row, gint col, GdkEvent *event, MessageList *list);
static void on_double_click (ETableScrolled *table, gint row, MessageList *list);
static void select_msg (MessageList *message_list, gint row);
static char *filter_date (const void *data);
static void nuke_uids (GtkObject *o);

static void save_tree_state(MessageList *ml);

static struct {
	char **image_base;
	GdkPixbuf  *pixbuf;
} states_pixmaps [] = {
	{ mail_new_xpm,		NULL },
	{ mail_read_xpm,	NULL },
	{ mail_replied_xpm,	NULL },
	{ empty_xpm,		NULL },
	{ attachment_xpm,	NULL },
	{ score_lowest_xpm,     NULL },
	{ score_lower_xpm,      NULL },
	{ score_low_xpm,        NULL },
	{ score_normal_xpm,     NULL },
	{ score_high_xpm,       NULL },
	{ score_higher_xpm,     NULL },
	{ score_highest_xpm,    NULL },
	{ NULL,			NULL }
};

static gint
address_compare (gconstpointer address1, gconstpointer address2)
{
	CamelInternetAddress *ia1, *ia2;
	const char *name1, *name2;
	const char *addr1, *addr2;
	gint retval = 0;
	
	ia1 = camel_internet_address_new ();
	ia2 = camel_internet_address_new ();
	
	camel_address_decode (CAMEL_ADDRESS (ia1), (const char *) address1);
	camel_address_decode (CAMEL_ADDRESS (ia2), (const char *) address2);
	
	if (!camel_internet_address_get (ia1, 0, &name1, &addr1)) {
		camel_object_unref (CAMEL_OBJECT (ia1));
		camel_object_unref (CAMEL_OBJECT (ia2));
		return 1;
	}
	
	if (!camel_internet_address_get (ia2, 0, &name2, &addr2)) {
		camel_object_unref (CAMEL_OBJECT (ia1));
		camel_object_unref (CAMEL_OBJECT (ia2));
		return -1;
	}
	
	if (!name1 && !name2) {
		/* if neither has a name we should compare addresses */
		retval = g_strcasecmp (addr1, addr2);
	} else {
		if (!name1)
			retval = -1;
		else if (!name2)
			retval = 1;
		else {
			ENameWestern *wname1, *wname2;
			
			wname1 = e_name_western_parse (name1);
			wname2 = e_name_western_parse (name2);
			
			if (!wname1->last && !wname2->last) {
				/* neither has a last name */
				retval = g_strcasecmp (name1, name2);
			} else {
				/* compare last names */
				if (!wname1->last)
					retval = -1;
				else if (!wname2->last)
					retval = 1;
				else {
					retval = g_strcasecmp (wname1->last, wname2->last);
					if (!retval) {
						/* last names are identical - compare first names */
						if (!wname1->first)
							retval = -1;
						else if (!wname2->first)
							retval = 1;
						else {
							retval = g_strcasecmp (wname1->first, wname2->first);
							if (!retval) {
								/* first names are identical - compare addresses */
								retval = g_strcasecmp (addr1, addr2);
							}
						}
					}
				}
			}
			
			e_name_western_free (wname1);
			e_name_western_free (wname2);
		}
	}
	
	camel_object_unref (CAMEL_OBJECT (ia1));
	camel_object_unref (CAMEL_OBJECT (ia2));
	
	return retval;
}

static gint
subject_compare (gconstpointer subject1, gconstpointer subject2)
{
	char *sub1;
	char *sub2;
	
	/* trim off any "Re:"'s at the beginning of subject1 */
	sub1 = (char *) subject1;
	while (!g_strncasecmp (sub1, "Re:", 3)) {
		sub1 += 3;
		/* jump over any spaces */
		for ( ; *sub1 && isspace (*sub1); sub1++);
	}
	
	/* trim off any "Re:"'s at the beginning of subject2 */
	sub2 = (char *) subject2;
	while (!g_strncasecmp (sub2, "Re:", 3)) {
		sub2 += 3;
		/* jump over any spaces */
		for ( ; *sub2 && isspace (*sub2); sub2++);
	}
	
	/* jump over any spaces */
	for ( ; *sub1 && isspace (*sub1); sub1++);
	for ( ; *sub2 && isspace (*sub2); sub2++);
	
	return g_strcasecmp (sub1, sub2);
}

/* Gets the CamelMessageInfo for the message displayed at the given
 * view row.
 */
static const CamelMessageInfo *
get_message_info (MessageList *message_list, int row)
{
	ETreeModel *model = (ETreeModel *)message_list->table_model;
	ETreePath *node;
	char *uid;

	if (row >= e_table_model_row_count (message_list->table_model))
		return NULL;

	node = e_tree_model_node_at_row (model, row);
	g_return_val_if_fail (node != NULL, NULL);
	uid = e_tree_model_node_get_data (model, node);

	if (strncmp (uid, "uid:", 4) != 0)
		return NULL;
	uid += 4;

	return camel_folder_get_message_info (message_list->folder, uid);
}

/* Gets the uid of the message displayed at a given view row */
static const char *
get_message_uid (MessageList *message_list, int row)
{
	ETreeModel *model = (ETreeModel *)message_list->table_model;
	ETreePath *node;
	const char *uid;

	if (row >= e_table_model_row_count (message_list->table_model))
		return NULL;

	node = e_tree_model_node_at_row (model, row);
	g_return_val_if_fail (node != NULL, NULL);
	uid = e_tree_model_node_get_data (model, node);

	if (strncmp (uid, "uid:", 4) != 0)
		return NULL;
	uid += 4;

	return uid;
}

static gint 
mark_msg_seen (gpointer data)
{
	MessageList *ml = data;
	GPtrArray *uids;

	if (!ml->cursor_uid) 
		return FALSE;

	uids = g_ptr_array_new ();
	g_ptr_array_add (uids, g_strdup (ml->cursor_uid));
	mail_do_flag_messages (ml->folder, uids, FALSE,
			       CAMEL_MESSAGE_SEEN, CAMEL_MESSAGE_SEEN);
	return FALSE;
}

/**
 * message_list_select:
 * @message_list: a MessageList
 * @base_row: the (model) row to start from
 * @direction: the direction to search in
 * @flags: a set of flag values
 * @mask: a mask for comparing against @flags
 *
 * This moves the message list selection to a suitable row. @base_row
 * lists the first (model) row to try, but as a special case, model
 * row -1 is mapped to view row 0. @flags and @mask combine to specify
 * what constitutes a suitable row. @direction is
 * %MESSAGE_LIST_SELECT_NEXT if it should find the next matching
 * message, or %MESSAGE_LIST_SELECT_PREVIOUS if it should find the
 * previous. If no suitable row is found, the selection will be
 * unchanged but the message display will be cleared.
 **/
void
message_list_select (MessageList *message_list, int base_row,
		     MessageListSelectDirection direction,
		     guint32 flags, guint32 mask)
{
	const CamelMessageInfo *info;
	int vrow, mrow, last;
	ETableScrolled *ets = E_TABLE_SCROLLED (message_list->etable);

	if (direction == MESSAGE_LIST_SELECT_PREVIOUS)
		last = 0;
	else
		last = e_table_model_row_count (message_list->table_model);

	if (base_row == -1)
		vrow = 0;
	else
		vrow = e_table_model_to_view_row (ets->table, base_row);

	/* We don't know whether to use < or > due to "direction" */
	while (vrow != last) {
		mrow = e_table_view_to_model_row (ets->table, vrow);
		info = get_message_info (message_list, mrow);
		if (info && (info->flags & mask) == flags) {
			e_table_scrolled_set_cursor_row (ets, mrow);
			mail_do_display_message (message_list, info->uid, mark_msg_seen);
			return;
		}
		vrow += direction;
	}

	mail_display_set_message (message_list->parent_folder_browser->mail_display, NULL);
}

/* select a message and display it */
static void
select_msg (MessageList *message_list, gint row)
{
	const char *uid;

	uid = get_message_uid (message_list, row);
	mail_do_display_message (message_list, uid, mark_msg_seen);
}


/*
 * SimpleTableModel::col_count
 */
static int
ml_col_count (ETableModel *etm, void *data)
{
	return COL_LAST;
}

static void *
ml_duplicate_value (ETableModel *etm, int col, const void *value, void *data)
{
	switch (col){
	case COL_MESSAGE_STATUS:
	case COL_SCORE:
	case COL_ATTACHMENT:
	case COL_DELETED:
	case COL_UNREAD:
	case COL_SENT:
	case COL_RECEIVED:
		return (void *) value;

	case COL_FROM:
	case COL_SUBJECT:
	case COL_TO:
	case COL_SIZE:
		return g_strdup (value);
	default:
		g_assert_not_reached ();
	}
	return NULL;
}

static void
ml_free_value (ETableModel *etm, int col, void *value, void *data)
{
	switch (col){
	case COL_MESSAGE_STATUS:
	case COL_SCORE:
	case COL_ATTACHMENT:
	case COL_DELETED:
	case COL_UNREAD:
	case COL_SENT:
	case COL_RECEIVED:
		break;

	case COL_FROM:
	case COL_SUBJECT:
	case COL_TO:
	case COL_SIZE:
		g_free (value);
		break;
	default:
		g_assert_not_reached ();
	}
}

static void *
ml_initialize_value (ETableModel *etm, int col, void *data)
{
	switch (col){
	case COL_MESSAGE_STATUS:
	case COL_SCORE:
	case COL_ATTACHMENT:
	case COL_DELETED:
	case COL_UNREAD:
	case COL_SENT:
	case COL_RECEIVED:
		return NULL;

	case COL_FROM:
	case COL_SUBJECT:
	case COL_TO:
	case COL_SIZE:
		return g_strdup("");
	default:
		g_assert_not_reached ();
	}

	return NULL;
}

static gboolean
ml_value_is_empty (ETableModel *etm, int col, const void *value, void *data)
{
	switch (col){
	case COL_MESSAGE_STATUS:
	case COL_SCORE:
	case COL_ATTACHMENT:
	case COL_DELETED:
	case COL_UNREAD:
	case COL_SENT:
	case COL_RECEIVED:
		return value == NULL;

	case COL_FROM:
	case COL_SUBJECT:
	case COL_TO:
	case COL_SIZE:
		return !(value && *(char *)value);
	default:
		g_assert_not_reached ();
		return FALSE;
	}
}

static char *
ml_value_to_string (ETableModel *etm, int col, const void *value, void *data)
{
	switch (col){
	case COL_MESSAGE_STATUS:
		switch ((int) value) {
		case 0:
			return g_strdup ("Unseen");
			break;
		case 1:
			return g_strdup ("Seen");
			break;
		case 2:
			return g_strdup ("Answered");
			break;
		default:
			return g_strdup ("");
			break;
		}
		break;
		
	case COL_SCORE:
		switch ((int) value) {
		case -3:
			return g_strdup ("Lowest");
			break;
		case -2:
			return g_strdup ("Lower");
			break;
		case -1:
			return g_strdup ("Low");
			break;
		case 1:
			return g_strdup ("High");
			break;
		case 2:
			return g_strdup ("Higher");
			break;
		case 3:
			return g_strdup ("Highest");
			break;
		default:
			return g_strdup ("Normal");
			break;
		}
		break;
		
	case COL_ATTACHMENT:
	case COL_DELETED:
	case COL_UNREAD:
		return g_strdup_printf("%d", (int) value);
		
	case COL_SENT:
	case COL_RECEIVED:
		return filter_date (value);
		
	case COL_FROM:
	case COL_SUBJECT:
	case COL_TO:
	case COL_SIZE:
		return g_strdup (value);
	default:
		g_assert_not_reached ();
		return NULL;
	}
}

static GdkPixbuf *
ml_tree_icon_at (ETreeModel *etm, ETreePath *path, void *model_data)
{
	/* we dont really need an icon ... */
	return NULL;
}

/* return true if there are any unread messages in the subtree */
static int
subtree_unread(MessageList *ml, ETreePath *node)
{
	const CamelMessageInfo *info;
	char *uid;

	while (node) {
		uid = e_tree_model_node_get_data((ETreeModel *)ml->table_model, node);
		if (strncmp (uid, "uid:", 4) == 0) {
			info = camel_folder_get_message_info(ml->folder, uid+4);
			if (!(info->flags & CAMEL_MESSAGE_SEEN))
				return TRUE;
		}
		if (node->children)
			if (subtree_unread(ml, node->children))
				return TRUE;
		node = node->next;
	}
	return FALSE;
}

static gboolean
content_is_attachment(CamelMessageContentInfo *ci)
{
	CamelMessageContentInfo *child;

	/* no info about content */
	if (ci == NULL)
		return FALSE;

	/* we assume multipart/mixed is an attachment always
	   other multipart / * is only an attachment if it contains multipart/mixed's, or
	   non-text parts */
	if (header_content_type_is(ci->type, "multipart", "*")) {
		if (header_content_type_is(ci->type, "multipart", "mixed")) {
			return TRUE;
		}
		child = ci->childs;
		while (child) {
			if (content_is_attachment(child)) {
				return TRUE;
			}
			child = child->next;
		}
		return FALSE;
	} else {
		return !header_content_type_is(ci->type, "text", "*");
	}
}

static void *
ml_tree_value_at (ETreeModel *etm, ETreePath *path, int col, void *model_data)
{
	MessageList *message_list = model_data;
	const CamelMessageInfo *msg_info;
	static char buffer [10];
	char *uid;

	/* retrieve the message information array */
	uid = e_tree_model_node_get_data (etm, path);
	if (strncmp (uid, "uid:", 4) != 0)
		goto fake;
	uid += 4;

	msg_info = camel_folder_get_message_info (message_list->folder, uid);
	g_return_val_if_fail (msg_info != NULL, NULL);
	
	switch (col){
	case COL_MESSAGE_STATUS:
		if (msg_info->flags & CAMEL_MESSAGE_ANSWERED)
			return GINT_TO_POINTER (2);
		else if (msg_info->flags & CAMEL_MESSAGE_SEEN)
			return GINT_TO_POINTER (1);
		else
			return GINT_TO_POINTER (0);
		
	case COL_SCORE:
	{
		const char *tag;
		int score = 0;
		
		tag = camel_tag_get ((CamelTag **) &msg_info->user_tags, "score");
		if (tag)
			score = atoi (tag);
		
		return GINT_TO_POINTER (score);
	}
		
	case COL_ATTACHMENT:
		if (content_is_attachment(msg_info->content))
			return (void *)1;
		else
			return (void *)0;
		
	case COL_FROM:
		if (msg_info->from)
			return msg_info->from;
		else
			return "";
		
	case COL_SUBJECT:
		if (msg_info->subject)
			return msg_info->subject;
		else
			return "";
		
	case COL_SENT:
		return GINT_TO_POINTER (msg_info->date_sent);
		
	case COL_RECEIVED:
		return GINT_TO_POINTER (msg_info->date_received);
		
	case COL_TO:
		if (msg_info->to)
			return msg_info->to;
		else
			return "";
		
	case COL_SIZE:
		sprintf (buffer, "%d", msg_info->size);
		return buffer;
		
	case COL_DELETED:
		if (msg_info->flags & CAMEL_MESSAGE_DELETED)
			return GINT_TO_POINTER (1);
		else
			return GINT_TO_POINTER (0);
		
	case COL_UNREAD:
		return GINT_TO_POINTER (!(msg_info->flags & CAMEL_MESSAGE_SEEN));
		
	case COL_COLOUR:
		return (void *) camel_tag_get ((CamelTag **) &msg_info->user_tags, "colour");
	}
	
	g_assert_not_reached ();
	
 fake:
	/* This is a fake tree parent */
	switch (col){
	case COL_UNREAD:
		/* this value should probably be cached, as it could take a bit
		   of processing to evaluate all the time */
		return (void *)subtree_unread(message_list, path->children);
	case COL_MESSAGE_STATUS:
	case COL_SCORE:
	case COL_ATTACHMENT:
	case COL_DELETED:
	case COL_COLOUR:
	case COL_SENT:
	case COL_RECEIVED:
		return (void *) 0;
		
	case COL_SUBJECT:
		return strchr (uid, ':') + 1;
		
	case COL_FROM:
	case COL_TO:
	case COL_SIZE:
		return "?";
	}
	g_assert_not_reached ();
	
	return NULL;
}

static void
ml_tree_set_value_at (ETreeModel *etm, ETreePath *path, int col,
		      const void *val, void *model_data)
{
	MessageList *message_list = model_data;
	const CamelMessageInfo *msg_info;
	char *uid;
	GPtrArray *uids;

	if (col != COL_MESSAGE_STATUS)
		return;

	uid = e_tree_model_node_get_data (etm, path);
	if (strncmp (uid, "uid:", 4) != 0)
		return;
	uid += 4;

	msg_info = camel_folder_get_message_info (message_list->folder, uid);
	if (!msg_info)
		return;

	uids = g_ptr_array_new ();
	g_ptr_array_add (uids, g_strdup (uid));
	mail_do_flag_messages (message_list->folder, uids, TRUE,
			       CAMEL_MESSAGE_SEEN, CAMEL_MESSAGE_SEEN);

	if (message_list->seen_id) {
		gtk_timeout_remove (message_list->seen_id);
		message_list->seen_id = 0;
	}
}

static gboolean
ml_tree_is_cell_editable (ETreeModel *etm, ETreePath *path, int col, void *model_data)
{
	return col == COL_MESSAGE_STATUS;
}

static void
message_list_init_images (void)
{
	int i;
	
	/*
	 * Only load once, and share
	 */
	if (states_pixmaps [0].pixbuf)
		return;
	
	for (i = 0; states_pixmaps [i].image_base; i++){
		states_pixmaps [i].pixbuf = gdk_pixbuf_new_from_xpm_data (
			(const char **) states_pixmaps [i].image_base);
	}
}

static char *
filter_date (const void *data)
{
	time_t date = GPOINTER_TO_INT (data);
	char buf[26], *p;

	if (date == 0)
		return g_strdup ("?");

#ifdef CTIME_R_THREE_ARGS
	ctime_r (&date, buf, 26);
#else
	ctime_r (&date, buf);
#endif

	p = strchr (buf, '\n');
	if (p)
		*p = '\0';

	return g_strdup (buf);
}

static void
message_list_init_renderers (MessageList *message_list)
{
	GdkPixbuf *images [7];
	int i;
	
	g_assert (message_list);
	g_assert (message_list->table_model);
	
	message_list->render_text = e_cell_text_new (
		message_list->table_model,
		NULL, GTK_JUSTIFY_LEFT);
	
	gtk_object_set (GTK_OBJECT (message_list->render_text),
			"strikeout_column", COL_DELETED,
			NULL);
	gtk_object_set (GTK_OBJECT (message_list->render_text),
			"bold_column", COL_UNREAD,
			NULL);
	gtk_object_set (GTK_OBJECT (message_list->render_text),
			"color_column", COL_COLOUR,
			NULL);
	
	message_list->render_date = e_cell_text_new (
		message_list->table_model,
		NULL, GTK_JUSTIFY_LEFT);
	
	gtk_object_set (GTK_OBJECT (message_list->render_date),
			"text_filter", filter_date,
			NULL);
	gtk_object_set (GTK_OBJECT (message_list->render_date),
			"strikeout_column", COL_DELETED,
			NULL);
	gtk_object_set (GTK_OBJECT (message_list->render_date),
			"bold_column", COL_UNREAD,
			NULL);
	gtk_object_set (GTK_OBJECT (message_list->render_date),
			"color_column", COL_COLOUR,
			NULL);
	
	message_list->render_online_status = e_cell_checkbox_new ();
	
	/*
	 * Message status
	 */
	for (i = 0; i < 3; i++)
		images [i] = states_pixmaps [i].pixbuf;
	
	message_list->render_message_status = e_cell_toggle_new (0, 3, images);
	
	/*
	 * Attachment
	 */
	for (i = 0; i < 2; i++)
		images [i] = states_pixmaps [i + 3].pixbuf;
	
	message_list->render_attachment = e_cell_toggle_new (0, 2, images);
	
	/*
	 * FIXME: We need a real renderer here
	 * Miguel has suggested perhaps using icons with thumbs up/down
	 */
	for (i = 0; i < 7; i++)
		images[i] = states_pixmaps [i + 5].pixbuf;
	
	message_list->render_score = e_cell_toggle_new (0, 7, images);

	/*
	 * for tree view
	 */
	message_list->render_tree =
		e_cell_tree_new (message_list->table_model,
				 NULL, NULL, /* let the tree renderer default the pixmaps */
				 TRUE, message_list->render_text);
}

static void
message_list_init_header (MessageList *message_list)
{
	int i;
	
	/*
	 * FIXME:
	 *
	 * Use the font metric to compute this.
	 */
	
	message_list->header_model = e_table_header_new ();
	gtk_object_ref (GTK_OBJECT (message_list->header_model));
	gtk_object_sink (GTK_OBJECT (message_list->header_model));
	
	message_list->table_cols [COL_MESSAGE_STATUS] =
		e_table_col_new_with_pixbuf (
			COL_MESSAGE_STATUS, states_pixmaps [0].pixbuf,
			0.0, COL_CHECK_BOX_WIDTH,
			message_list->render_message_status, 
			g_int_compare, FALSE);
	
	gtk_object_set (GTK_OBJECT (message_list->table_cols[COL_MESSAGE_STATUS]),
			"sortable", FALSE,
			NULL);
	
	message_list->table_cols [COL_SCORE] =
		e_table_col_new_with_pixbuf (
			COL_SCORE, states_pixmaps [10].pixbuf,
			0.0, COL_CHECK_BOX_WIDTH,
			message_list->render_score,
			g_int_compare, TRUE);
	
	message_list->table_cols [COL_ATTACHMENT] =
		e_table_col_new_with_pixbuf (
			COL_ATTACHMENT, states_pixmaps [4].pixbuf,
			0.0, COL_ATTACH_WIDTH,
			message_list->render_attachment,
			g_int_compare, FALSE);
	
	gtk_object_set (GTK_OBJECT (message_list->table_cols[COL_ATTACHMENT]),
			"sortable", FALSE,
			NULL);
	
	message_list->table_cols [COL_FROM] =
		e_table_col_new (
			COL_FROM, _("From"),
			COL_FROM_EXPANSION, COL_FROM_WIDTH_MIN,
			message_list->render_text,
			address_compare, TRUE);
	
	message_list->table_cols [COL_SUBJECT] =
		e_table_col_new (
			COL_SUBJECT, _("Subject"),
			COL_SUBJECT_EXPANSION, COL_SUBJECT_WIDTH_MIN,
			message_list->render_tree,
			subject_compare, TRUE);
	
	message_list->table_cols [COL_SENT] =
		e_table_col_new (
			COL_SENT, _("Date"),
			COL_SENT_EXPANSION, COL_SENT_WIDTH_MIN,
			message_list->render_date,
			g_int_compare, TRUE);
	
	message_list->table_cols [COL_RECEIVED] =
		e_table_col_new (
			COL_RECEIVED, _("Received"),
			COL_RECEIVED_EXPANSION, COL_RECEIVED_WIDTH_MIN,
			message_list->render_date,
			g_int_compare, TRUE);
	
	message_list->table_cols [COL_TO] =
		e_table_col_new (
			COL_TO, _("To"),
			COL_TO_EXPANSION, COL_TO_WIDTH_MIN,
			message_list->render_text,
			address_compare, TRUE);
	
	message_list->table_cols [COL_SIZE] =
		e_table_col_new (
			COL_SIZE, _("Size"),
			COL_SIZE_EXPANSION, COL_SIZE_WIDTH_MIN,
			message_list->render_text,
			g_str_compare, TRUE);
	
	for (i = 0; i < COL_LAST; i++) {
		gtk_object_ref (GTK_OBJECT (message_list->table_cols [i]));
		e_table_header_add_column (message_list->header_model,
					   message_list->table_cols [i], i);
	}
}

static char *
message_list_get_layout (MessageList *message_list)
{
	/* Message status, From, Subject, Sent Date */
	return g_strdup ("<ETableSpecification> <columns-shown> <column> 0 </column> <column> 3 </column> <column> 4 </column> <column> 5 </column> </columns-shown> <grouping> </grouping> </ETableSpecification>");
}

/*
 * GtkObject::init
 */
static void
message_list_init (GtkObject *object)
{
	MessageList *message_list = MESSAGE_LIST (object);
	char *spec;

	message_list->table_model = (ETableModel *)
		e_tree_simple_new (ml_col_count,
				   ml_duplicate_value,
				   ml_free_value,
				   ml_initialize_value,
				   ml_value_is_empty,
				   ml_value_to_string,
				   ml_tree_icon_at, ml_tree_value_at,
				   ml_tree_set_value_at,
				   ml_tree_is_cell_editable,
				   message_list);
	e_tree_model_root_node_set_visible ((ETreeModel *)message_list->table_model, FALSE);
	gtk_signal_connect (GTK_OBJECT (message_list->table_model), "destroy", 
			    (GtkSignalFunc) nuke_uids, NULL);

	message_list_init_renderers (message_list);
	message_list_init_header (message_list);

	/*
	 * The etable
	 */

	spec = message_list_get_layout (message_list);
	message_list->etable = e_table_scrolled_new (
		message_list->header_model, message_list->table_model, spec);
	g_free (spec);

	gtk_object_set(GTK_OBJECT(message_list->etable),
		       "cursor_mode", E_TABLE_CURSOR_LINE,
		       "drawfocus", FALSE,
		       "drawgrid", FALSE,
		       NULL);

	/*
	 *gtk_signal_connect (GTK_OBJECT (message_list->etable), "realize",
	 *		    GTK_SIGNAL_FUNC (select_row), message_list);
	 */

	gtk_signal_connect (GTK_OBJECT (message_list->etable), "cursor_change",
			   GTK_SIGNAL_FUNC (on_cursor_change_cmd), message_list);

	gtk_signal_connect (GTK_OBJECT (message_list->etable), "right_click",
			    GTK_SIGNAL_FUNC (on_right_click), message_list);
	
	gtk_signal_connect (GTK_OBJECT (message_list->etable), "double_click",
			    GTK_SIGNAL_FUNC (on_double_click), message_list);
	
	gtk_widget_show (message_list->etable);
	
	gtk_object_ref (GTK_OBJECT (message_list->table_model));
	gtk_object_sink (GTK_OBJECT (message_list->table_model));
	
	/*
	 * We do own the Etable, not some widget container
	 */
	gtk_object_ref (GTK_OBJECT (message_list->etable));
	gtk_object_sink (GTK_OBJECT (message_list->etable));
}

static void
free_key (gpointer key, gpointer value, gpointer data)
{
	g_free (key);
}

static void
message_list_destroy (GtkObject *object)
{
	MessageList *message_list = MESSAGE_LIST (object);
	int i;

	if (message_list->folder)
		save_tree_state(message_list);
	
	gtk_object_unref (GTK_OBJECT (message_list->table_model));
	gtk_object_unref (GTK_OBJECT (message_list->header_model));
	
	/*
	 * Renderers
	 */
	gtk_object_unref (GTK_OBJECT (message_list->render_text));
	gtk_object_unref (GTK_OBJECT (message_list->render_online_status));
	gtk_object_unref (GTK_OBJECT (message_list->render_message_status));
	gtk_object_unref (GTK_OBJECT (message_list->render_score));
	gtk_object_unref (GTK_OBJECT (message_list->render_attachment));
	gtk_object_unref (GTK_OBJECT (message_list->render_tree));
	
	gtk_object_unref (GTK_OBJECT (message_list->etable));
	
	if (message_list->uid_rowmap) {
		g_hash_table_foreach (message_list->uid_rowmap,
				      free_key, NULL);
		g_hash_table_destroy (message_list->uid_rowmap);
	}
	
	for (i = 0; i < COL_LAST; i++)
		gtk_object_unref (GTK_OBJECT (message_list->table_cols [i]));
	
	if (message_list->idle_id != 0)
		g_source_remove(message_list->idle_id);
	
	if (message_list->seen_id)
		gtk_timeout_remove (message_list->seen_id);
	
	if (message_list->folder)
		camel_object_unref (CAMEL_OBJECT (message_list->folder));
	
	GTK_OBJECT_CLASS (message_list_parent_class)->destroy (object);
}

/*
 * CORBA method: Evolution::MessageList::select_message
 */
static void
MessageList_select_message (PortableServer_Servant _servant,
			    const CORBA_long message_number,
			    CORBA_Environment *ev)
{
	printf ("FIXME: select message method\n");
}

/*
 * CORBA method: Evolution::MessageList::open_message
 */
static void
MessageList_open_message (PortableServer_Servant _servant,
			  const CORBA_long message_number,
			  CORBA_Environment *ev)
{
	printf ("FIXME: open message method\n");
}

static POA_Evolution_MessageList__epv *
evolution_message_list_get_epv (void)
{
	POA_Evolution_MessageList__epv *epv;

	epv = g_new0 (POA_Evolution_MessageList__epv, 1);

	epv->select_message = MessageList_select_message;
	epv->open_message   = MessageList_open_message;

	return epv;
}

static void
message_list_corba_class_init (void)
{
	evolution_message_list_vepv.Bonobo_Unknown_epv = bonobo_object_get_epv ();
	evolution_message_list_vepv.Evolution_MessageList_epv = evolution_message_list_get_epv ();
}

/*
 * GtkObjectClass::init
 */
static void
message_list_class_init (GtkObjectClass *object_class)
{
	message_list_parent_class = gtk_type_class (PARENT_TYPE);

	object_class->destroy = message_list_destroy;

	message_list_corba_class_init ();

	message_list_init_images ();
}

static void
message_list_construct (MessageList *message_list, Evolution_MessageList corba_message_list)
{
	bonobo_object_construct (BONOBO_OBJECT (message_list), corba_message_list);
}

static Evolution_MessageList
create_corba_message_list (BonoboObject *object)
{
	POA_Evolution_MessageList *servant;
	CORBA_Environment ev;

	servant = (POA_Evolution_MessageList *) g_new0 (BonoboObjectServant, 1);
	servant->vepv = &evolution_message_list_vepv;

	CORBA_exception_init (&ev);
	POA_Evolution_MessageList__init ((PortableServer_Servant) servant, &ev);
	if (ev._major != CORBA_NO_EXCEPTION){
		g_free (servant);
		CORBA_exception_free (&ev);
		return CORBA_OBJECT_NIL;
	}

	CORBA_exception_free (&ev);
	return (Evolution_MessageList) bonobo_object_activate_servant (object, servant);
}

BonoboObject *
message_list_new (FolderBrowser *parent_folder_browser)
{
	Evolution_MessageList corba_object;
	MessageList *message_list;

	g_assert (parent_folder_browser);

	message_list = gtk_type_new (message_list_get_type ());

	corba_object = create_corba_message_list (BONOBO_OBJECT (message_list));
	if (corba_object == CORBA_OBJECT_NIL){
		gtk_object_destroy (GTK_OBJECT (message_list));
		return NULL;
	}

	message_list->parent_folder_browser = parent_folder_browser;

	message_list->idle_id = 0;

	message_list_construct (message_list, corba_object);

	return BONOBO_OBJECT (message_list);
}

static void
clear_tree (MessageList *ml)
{
	ETreeModel *etm = E_TREE_MODEL (ml->table_model);

	if (ml->tree_root)
		e_tree_model_node_remove (etm, ml->tree_root);
	ml->tree_root =
		e_tree_model_node_insert (etm, NULL, 0, NULL);
	e_tree_model_node_set_expanded (etm, ml->tree_root, TRUE);
}

static char *
folder_to_cachename(CamelFolder *folder, const char *prefix)
{
	char *url, *p, *filename;

	url = camel_url_to_string(CAMEL_SERVICE(folder->parent_store)->url, FALSE);
	for (p = url; *p; p++) {
		if (!isprint((unsigned char)*p) || strchr(" /'\"`&();|<>${}!", *p))
			*p = '_';
	}
	
	filename = g_strdup_printf("%s/config/%s%s", evolution_dir, prefix, url);
	g_free(url);
	return filename;
}

/* we save the node id to the file if the node should be closed when
   we start up.  We only save nodeid's for messages with children */
static void
save_node_state(MessageList *ml, FILE *out, ETreePath *node)
{
	char *data;
	const CamelMessageInfo *info;

	while (node) {
		if (node->children
		    && !e_tree_model_node_is_expanded((ETreeModel *)ml->table_model, node)) {
			data = e_tree_model_node_get_data((ETreeModel *)ml->table_model, node);
			if (data) {
				if (!strncmp(data, "uid:", 4)) {
					info = camel_folder_get_message_info(ml->folder, data+4);
					if (info) {
						fprintf(out, "%s\n", info->message_id);
					}
				} else {
					fprintf(out, "%s\n", data);
				}
			}
		}
		if (node->children) {
			save_node_state(ml, out, node->children);
		}
		node = node->next;
	}
}

static GHashTable *
load_tree_state(MessageList *ml)
{
	char *filename, linebuf[10240];
	GHashTable *result;
	FILE *in;
	int len;

	result = g_hash_table_new(g_str_hash, g_str_equal);
	filename = folder_to_cachename(ml->folder, "treestate-");
	in = fopen(filename, "r");
	if (in) {
		while (fgets(linebuf, sizeof(linebuf), in) != NULL) {
			len = strlen(linebuf);
			if (len) {
				linebuf[len-1] = 0;
				g_hash_table_insert(result, g_strdup(linebuf), (void *)1);
			}
		}
		fclose(in);
	}
	g_free(filename);
	return result;
}

/* save tree info */
static void
save_tree_state(MessageList *ml)
{
	char *filename;
	ETreePath *node;
	FILE *out;

	filename = folder_to_cachename(ml->folder, "treestate-");
	out = fopen(filename, "w");
	if (out) {
		node = e_tree_model_get_root((ETreeModel *)ml->table_model);
		if (node && node->children) {
			save_node_state(ml, out, node->children);
		}
		fclose(out);
	}
	g_free(filename);
}

static void
free_node_state(void *key, void *value, void *data)
{
	g_free(key);
}

static void
free_tree_state(GHashTable *expanded_nodes)
{
	g_hash_table_foreach(expanded_nodes, free_node_state, 0);
	g_hash_table_destroy(expanded_nodes);
}

/* only call if we have a tree model */
/* builds the tree structure */
static void build_subtree (MessageList *ml, ETreePath *parent, struct _container *c, int *row, GHashTable *);

static void
build_tree (MessageList *ml, struct _container *c)
{
	int row = 0;
	GHashTable *expanded_nodes;

	clear_tree (ml);
	expanded_nodes = load_tree_state(ml);
	build_subtree (ml, ml->tree_root, c, &row, expanded_nodes);
	free_tree_state(expanded_nodes);
}

static void
build_subtree (MessageList *ml, ETreePath *parent, struct _container *c, int *row, GHashTable *expanded_nodes)
{
	ETreeModel *tree = E_TREE_MODEL (ml->table_model);
	ETreePath *node;
	char *id;
	int expanded = FALSE;	/* just removes a silly warning */

	while (c) {
		if (c->message) {
			id = g_strdup_printf("uid:%s", c->message->uid);
			g_hash_table_insert(ml->uid_rowmap, g_strdup (c->message->uid), GINT_TO_POINTER ((*row)++));
			if (c->child) {
				if (c->message && c->message->message_id)
					expanded = !g_hash_table_lookup(expanded_nodes, c->message->message_id) != 0;
				else
					expanded = TRUE;
			}
		} else {
			id = g_strdup_printf("subject:%s", c->root_subject);
			if (c->child) {
				expanded = !g_hash_table_lookup(expanded_nodes, id) != 0;
			}
		}
		node = e_tree_model_node_insert(tree, parent, 0, id);
		if (c->child) {
			/* by default, open all trees */
			if (expanded)
				e_tree_model_node_set_expanded(tree, node, expanded);
			build_subtree(ml, node, c->child, row, expanded_nodes);
		}
		c = c->next;
	}
}

static gboolean
nuke_uids_cb (GNode *node, gpointer data)
{
	g_free (e_tree_model_node_get_data (E_TREE_MODEL (data), node));
	return FALSE;
}

static void
nuke_uids (GtkObject *o)
{
	ETreeModel *etm = E_TREE_MODEL (o);

	g_node_traverse (etm->root, G_IN_ORDER, 
			 G_TRAVERSE_ALL, -1, 
			 nuke_uids_cb, etm);
}

static void
build_flat (MessageList *ml, GPtrArray *uids)
{
	ETreeModel *tree = E_TREE_MODEL (ml->table_model);
	ETreePath *node;
	char *uid;
	int i;

	clear_tree (ml);
	for (i = 0; i < uids->len; i++) {
		uid = g_strdup_printf ("uid:%s", (char *)uids->pdata[i]);
		node = e_tree_model_node_insert (tree, ml->tree_root, i, uid);
		g_hash_table_insert (ml->uid_rowmap, g_strdup (uids->pdata[i]),
				     GINT_TO_POINTER (i));
	}
}

static void
main_folder_changed (CamelObject *o, gpointer event_data, gpointer user_data)
{
	MessageList *message_list = MESSAGE_LIST (user_data);

	mail_do_regenerate_messagelist (message_list, message_list->search);
}

static void
folder_changed (CamelObject *o, gpointer event_data, gpointer user_data)
{
	mail_op_forward_event (main_folder_changed, o, event_data, user_data);
}

static void
main_message_changed (CamelObject *o, gpointer uid, gpointer user_data)
{
	MessageList *message_list = MESSAGE_LIST (user_data);
	int row;

	row = GPOINTER_TO_INT (g_hash_table_lookup (message_list->uid_rowmap,
						    uid));
	if (row != -1)
		e_table_model_row_changed (message_list->table_model, row);

	g_free (uid);
}

static void
message_changed (CamelObject *o, gpointer event_data, gpointer user_data)
{
	/* Here we copy the data because our thread may free the copy that we would reference.
	 * The other thread would be passed a uid parameter that pointed to freed data.
	 * We copy it and free it in the handler. 
	 */
	mail_op_forward_event (main_message_changed, o, g_strdup ((gchar *)event_data), user_data);
}

void
message_list_set_folder (MessageList *message_list, CamelFolder *camel_folder)
{
	CamelException ex;

	g_return_if_fail (message_list != NULL);
	g_return_if_fail (camel_folder != NULL);
	g_return_if_fail (IS_MESSAGE_LIST (message_list));
	g_return_if_fail (CAMEL_IS_FOLDER (camel_folder));
	g_return_if_fail (camel_folder_has_summary_capability (camel_folder));

	camel_exception_init (&ex);
	
	if (message_list->folder)
		camel_object_unref (CAMEL_OBJECT (message_list->folder));

	message_list->folder = camel_folder;

	camel_object_hook_event(CAMEL_OBJECT (camel_folder), "folder_changed",
			   folder_changed, message_list);
	camel_object_hook_event(CAMEL_OBJECT (camel_folder), "message_changed",
			   message_changed, message_list);

	camel_object_ref (CAMEL_OBJECT (camel_folder));

	/*gtk_idle_add (regen_message_list, message_list);*/
	/*folder_changed (CAMEL_OBJECT (camel_folder), 0, message_list);*/
	mail_do_regenerate_messagelist (message_list, message_list->search);
}

GtkWidget *
message_list_get_widget (MessageList *message_list)
{
	return message_list->etable;
}

E_MAKE_TYPE (message_list, "MessageList", MessageList, message_list_class_init, message_list_init, PARENT_TYPE);

static gboolean
on_cursor_change_idle (gpointer data)
{
	MessageList *message_list = data;

	select_msg (message_list, message_list->cursor_row);

	message_list->idle_id = 0;
	return FALSE;
}

static void
on_cursor_change_cmd (ETableScrolled *table, int row, gpointer user_data)
{
	MessageList *message_list;
	const char *uid;
	
	message_list = MESSAGE_LIST (user_data);
	
	message_list->cursor_row = row;
	uid = get_message_uid (message_list, row);
	message_list->cursor_uid = uid; /*NULL ok*/

	if (!message_list->idle_id) {
		message_list->idle_id =
			g_idle_add_full (G_PRIORITY_LOW, on_cursor_change_idle,
					 message_list, NULL);
	}
}

/* FIXME: this is all a kludge. */
static gint
idle_select_row (gpointer user_data)
{
	MessageList *ml = MESSAGE_LIST (user_data);

	message_list_select (ml, -1, MESSAGE_LIST_SELECT_NEXT,
			     0, CAMEL_MESSAGE_SEEN);
	return FALSE;
}

static void
select_row (ETableScrolled *table, gpointer user_data)
{
	MessageList *message_list = user_data;

	gtk_idle_add (idle_select_row, message_list);
}

void
vfolder_subject(GtkWidget *w, FolderBrowser *fb)
{
	vfolder_gui_add_from_message(fb->mail_display->current_message, AUTO_SUBJECT,
				     fb->uri);
}

void
vfolder_sender(GtkWidget *w, FolderBrowser *fb)
{
	vfolder_gui_add_from_message(fb->mail_display->current_message, AUTO_FROM,
				     fb->uri);
}

void
vfolder_recipient(GtkWidget *w, FolderBrowser *fb)
{
	vfolder_gui_add_from_message(fb->mail_display->current_message, AUTO_TO,
				     fb->uri);
}

void
filter_subject(GtkWidget *w, FolderBrowser *fb)
{
	filter_gui_add_from_message(fb->mail_display->current_message, AUTO_SUBJECT);
}

void
filter_sender(GtkWidget *w, FolderBrowser *fb)
{
	filter_gui_add_from_message(fb->mail_display->current_message, AUTO_FROM);
}

void
filter_recipient(GtkWidget *w, FolderBrowser *fb)
{
	filter_gui_add_from_message(fb->mail_display->current_message, AUTO_TO);
}

void
filter_mlist (GtkWidget *w, FolderBrowser *fb)
{
	char *name;
	char *header_value;
	const char *header_name;

	name = mail_mlist_magic_detect_list (fb->mail_display->current_message, &header_name, &header_value);
	if (name == NULL)
		return;

	filter_gui_add_for_mailing_list (fb->mail_display->current_message, name, header_name, header_value);

	g_free (name);
	g_free (header_value);
}

static gint
on_right_click (ETableScrolled *table, gint row, gint col, GdkEvent *event, MessageList *list)
{
	FolderBrowser *fb = list->parent_folder_browser;
	extern CamelFolder *drafts_folder;
	int enable_mask = 0;
	EPopupMenu menu[] = {
		{ _("Open in New Window"),      NULL, GTK_SIGNAL_FUNC (view_msg),          0 },
		{ _("Edit Message"),            NULL, GTK_SIGNAL_FUNC (edit_msg),          1 },
		{ _("Print Message"),           NULL, GTK_SIGNAL_FUNC (print_msg),         0 },
		{ "",                           NULL, GTK_SIGNAL_FUNC (NULL),              0 },
		{ _("Reply to Sender"),         NULL, GTK_SIGNAL_FUNC (reply_to_sender),   0 },
		{ _("Reply to All"),            NULL, GTK_SIGNAL_FUNC (reply_to_all),      0 },
		{ _("Forward Message"),         NULL, GTK_SIGNAL_FUNC (forward_msg),       0 },
		{ "",                           NULL, GTK_SIGNAL_FUNC (NULL),              0 },
		{ _("Delete Message"),          NULL, GTK_SIGNAL_FUNC (delete_msg),        0 },
		{ _("Move Message"),            NULL, GTK_SIGNAL_FUNC (move_msg),          0 },
		{ _("Copy Message"),            NULL, GTK_SIGNAL_FUNC (copy_msg),          0 },
		{ "",                           NULL, GTK_SIGNAL_FUNC (NULL),              0 },
		{ _("VFolder on Subject"),      NULL, GTK_SIGNAL_FUNC (vfolder_subject),   2 },
		{ _("VFolder on Sender"),       NULL, GTK_SIGNAL_FUNC (vfolder_sender),    2 },
		{ _("VFolder on Recipients"),   NULL, GTK_SIGNAL_FUNC (vfolder_recipient), 2 },
		{ "",                           NULL, GTK_SIGNAL_FUNC (NULL),              0 },
		{ _("Filter on Subject"),       NULL, GTK_SIGNAL_FUNC (filter_subject),    2 },
		{ _("Filter on Sender"),        NULL, GTK_SIGNAL_FUNC (filter_sender),     2 },
		{ _("Filter on Recipients"),    NULL, GTK_SIGNAL_FUNC (filter_recipient),  2 },
		{ _("Filter on Mailing List"),  NULL, GTK_SIGNAL_FUNC (filter_mlist),      6 },
		{ NULL,                         NULL, NULL,                                0 }
	};
	int last_item;
	char *mailing_list_name;

	/* Evil Hack.  */

	last_item = (sizeof (menu) / sizeof (*menu)) - 2;

	if (fb->folder != drafts_folder)
		enable_mask |= 1;

	if (fb->mail_display->current_message == NULL) {
		enable_mask |= 2;
		mailing_list_name = NULL;
	} else {
		mailing_list_name = mail_mlist_magic_detect_list (fb->mail_display->current_message,
								  NULL, NULL);
	}

	if (mailing_list_name == NULL) {
		enable_mask |= 4;
		menu[last_item].name = g_strdup (_("Filter on Mailing List"));
	} else {
		menu[last_item].name = g_strdup_printf (_("Filter on Mailing List (%s)"),
							mailing_list_name);
	}

	e_popup_menu_run (menu, (GdkEventButton *)event, enable_mask, 0, fb);

	g_free (menu[last_item].name);
	
	return TRUE;
}

static void
on_double_click (ETableScrolled *table, gint row, MessageList *list)
{
	FolderBrowser *fb = list->parent_folder_browser;
	
	view_msg (NULL, fb);
}

struct message_list_foreach_data {
	MessageList *message_list;
	MessageListForeachFunc callback;
	gpointer user_data;
};

static void
mlfe_callback (int row, gpointer user_data)
{
	struct message_list_foreach_data *mlfe_data = user_data;
	const char *uid;

	uid = get_message_uid (mlfe_data->message_list, row);
	if (uid) {
		mlfe_data->callback (mlfe_data->message_list,
				     uid,
				     mlfe_data->user_data);
	}
}

void
message_list_foreach (MessageList *message_list,
		      MessageListForeachFunc callback,
		      gpointer user_data)
{
	struct message_list_foreach_data mlfe_data;

	mlfe_data.message_list = message_list;
	mlfe_data.callback = callback;
	mlfe_data.user_data = user_data;
	e_table_scrolled_selected_row_foreach (E_TABLE_SCROLLED (message_list->etable),
					       mlfe_callback, &mlfe_data);
}

void
message_list_toggle_threads (BonoboUIHandler *uih, void *user_data,
			     const char *path)
{
	MessageList *ml = user_data;

	mail_config_set_thread_list (bonobo_ui_handler_menu_get_toggle_state (uih, path));
	mail_do_regenerate_messagelist (ml, ml->search);
}

/* ** REGENERATE MESSAGELIST ********************************************** */

typedef struct regenerate_messagelist_input_s {
	MessageList *ml;
	char *search;
} regenerate_messagelist_input_t;

typedef struct regenerate_messagelist_data_s {
	GPtrArray *uids;
} regenerate_messagelist_data_t;

static gchar *describe_regenerate_messagelist (gpointer in_data, gboolean gerund);
static void setup_regenerate_messagelist   (gpointer in_data, gpointer op_data, CamelException *ex);
static void do_regenerate_messagelist      (gpointer in_data, gpointer op_data, CamelException *ex);
static void cleanup_regenerate_messagelist (gpointer in_data, gpointer op_data, CamelException *ex);

static gchar *describe_regenerate_messagelist (gpointer in_data, gboolean gerund)
{
	if (gerund)
		return g_strdup ("Rebuilding message view");
	else
		return g_strdup ("Rebuild message view");
}

static void setup_regenerate_messagelist (gpointer in_data, gpointer op_data, CamelException *ex)
{
	regenerate_messagelist_input_t *input = (regenerate_messagelist_input_t *) in_data;

	if (!IS_MESSAGE_LIST (input->ml)) {
		camel_exception_set (ex, CAMEL_EXCEPTION_INVALID_PARAM,
				     "No messagelist specified to regenerate");
		return;
	}
	
	gtk_object_ref (GTK_OBJECT (input->ml));
	e_table_model_pre_change (input->ml->table_model);
}

static void do_regenerate_messagelist (gpointer in_data, gpointer op_data, CamelException *ex)
{
	regenerate_messagelist_input_t *input = (regenerate_messagelist_input_t *) in_data;
	regenerate_messagelist_data_t *data = (regenerate_messagelist_data_t *) op_data;

        if (input->ml->search) {
                g_free (input->ml->search);
                input->ml->search = NULL;
        }

        if (input->ml->uid_rowmap) {
                g_hash_table_foreach (input->ml->uid_rowmap,
                                      free_key, NULL);
                g_hash_table_destroy (input->ml->uid_rowmap);
        }
        input->ml->uid_rowmap = g_hash_table_new (g_str_hash, g_str_equal);

	mail_tool_camel_lock_up();

	if (input->search) {
		data->uids = camel_folder_search_by_expression (input->ml->folder,
								input->search, ex);
		if (camel_exception_is_set (ex)) {
			mail_tool_camel_lock_down();
			return;
		}

		input->ml->search = g_strdup (input->search);
	} else
		data->uids = camel_folder_get_uids (input->ml->folder);

	mail_tool_camel_lock_down();
}

static void cleanup_regenerate_messagelist (gpointer in_data, gpointer op_data, CamelException *ex)
{
	regenerate_messagelist_input_t *input = (regenerate_messagelist_input_t *) in_data;
	regenerate_messagelist_data_t *data = (regenerate_messagelist_data_t *) op_data;

	ETreeModel *etm;

	etm = E_TREE_MODEL (input->ml->table_model);

	/* FIXME: free the old tree data */

	if (data->uids == NULL) { /*exception*/
		gtk_object_unref (GTK_OBJECT (input->ml));
		return;
	}

	if (mail_config_thread_list()) {
		mail_do_thread_messages (input->ml, data->uids, 
					 (gboolean) !(input->search),
					 build_tree);
	} else {
		build_flat (input->ml, data->uids);

		if (input->search) {
			camel_folder_search_free (input->ml->folder, data->uids);
		} else {
			camel_folder_free_uids (input->ml->folder, data->uids);
		}
	}

	e_table_model_changed (input->ml->table_model);
	select_row (NULL, input->ml);
	g_free (input->search);
	gtk_object_unref (GTK_OBJECT (input->ml));
}

static const mail_operation_spec op_regenerate_messagelist =
{
	describe_regenerate_messagelist,
	sizeof (regenerate_messagelist_data_t),
	setup_regenerate_messagelist,
	do_regenerate_messagelist,
	cleanup_regenerate_messagelist
};

void mail_do_regenerate_messagelist (MessageList *list, const gchar *search)
{
	regenerate_messagelist_input_t *input;

	input = g_new (regenerate_messagelist_input_t, 1);
	input->ml = list;
	input->search = g_strdup (search);

	mail_operation_queue (&op_regenerate_messagelist, input, TRUE);
}

static void
go_to_message (MessageList *message_list,
	       int model_row)
{
	ETableScrolled *table_scrolled;
	const CamelMessageInfo *info;
	int view_row;

	table_scrolled = E_TABLE_SCROLLED (message_list->etable);

	view_row = e_table_model_to_view_row (table_scrolled->table, model_row);
	info     = get_message_info (message_list, model_row);

	if (info != NULL) {
		e_table_scrolled_set_cursor_row (table_scrolled, view_row);
		mail_do_display_message (message_list, info->uid, mark_msg_seen);
	}
}

void
message_list_home (MessageList *message_list)
{
	g_return_if_fail (message_list != NULL);

	go_to_message (message_list, 0);
}

void
message_list_end (MessageList *message_list)
{
	ETableScrolled *table_scrolled;
	ETable *table;
	int num_rows;

	g_return_if_fail (message_list != NULL);

	table_scrolled = E_TABLE_SCROLLED (message_list->etable);
	table = table_scrolled->table;

	num_rows = e_table_model_row_count (table->model);
	if (num_rows == 0)
		return;

	go_to_message (message_list, num_rows - 1);
}