Rewrite the folder subscription editor.

Redesign the "Folder Subscriptions" dialog and use Camel's async API
instead of the MailMsg infrastructure to simplify the implementation.

1 files changed, 0 insertions, 1223 deletions

diff --git a/mail/em-subscribe-editor.c b/mail/em-subscribe-editor.c
deleted file mode 100644
index b942e35a4b..0000000000
--- a/mail/em-subscribe-editor.c
+++ /dev/null
@@ -1,1223 +0,0 @@
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) version 3.
- *
- * 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
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with the program; if not, see <http://www.gnu.org/licenses/>
- *
- *
- * Authors:
- *		Michael Zucchi <notzed@ximian.com>
- *
- * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
- *
- */
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include <string.h>
-
-#include "mail-tools.h"
-#include "mail-ops.h"
-#include "mail-mt.h"
-/*#include "mail-folder-cache.h"*/
-
-#include "e-util/e-util.h"
-#include "e-util/e-account-utils.h"
-#include "e-util/e-util-private.h"
-
-#include "em-folder-utils.h"
-#include "em-subscribe-editor.h"
-
-#include "mail-config.h"
-
-#include <glib/gi18n.h>
-
-#define d(x)
-
-enum {
-	COL_SUBSCRIBED = 0, /* G_TYPE_BOOLEAN */
-	COL_NAME,           /* G_TYPE_STRING  */
-	COL_INFO_NODE,      /* G_TYPE_POINTER */
-	COL_CAN_SELECT,     /* G_TYPE_BOOLEAN */
-	COL_ICON_NAME,      /* G_TYPE_STRING  */
-	N_COLUMNS
-};
-
-typedef struct _EMSubscribeEditor EMSubscribeEditor;
-struct _EMSubscribeEditor {
-	GQueue stores;
-
-	gint busy;
-	guint busy_id;
-
-	gboolean is_filtering; /* whether filtering is active */
-	guint refilter_id;     /* source ID of a refilter action, after change in the filter edit */
-
-	struct _EMSubscribe *current; /* the current one, if any */
-
-	GtkDialog *dialog;
-	GtkWidget *vbox;	/* where new stores are added */
-	GtkWidget *combobox;
-	GtkWidget *none_selected; /* 'please select a xxx' message */
-	GtkWidget *progress;
-	GtkWidget *filter_entry; /* when not empty, then it's filtering */
-	GtkWidget *expand_button;
-	GtkWidget *collapse_button;
-	GtkWidget *refresh_button;
-};
-
-typedef struct _EMSubscribe EMSubscribe;
-struct _EMSubscribe {
-	gint ref_count;
-	gint cancel;
-	gint seq;		/* upped every time we refresh */
-
-	struct _EMSubscribeEditor *editor; /* parent object*/
-
-	gchar *store_uri;
-	gint store_id;		/* looking up a store */
-
-	CamelStore *store;
-	GHashTable *folders;
-
-	GtkWidget *widget;	/* widget to show for this store */
-	GtkTreeView *tree;	/* tree, if we have it */
-	GtkTreeModel *tree_store; /* a tree store, used when not filtering */
-	GtkTreeModel *list_store; /* list store, used when filtering */
-	GSList *all_selectable; /* list of selectable info's, stored in the tree_store, in reverse order */
-
-	GSList *tree_expanded_paths; /* list of expanded paths in the tree model */
-
-	/* list of all returns from get_folder_info, accessed by other structures */
-	GSList *info_list;
-
-	gint pending_id;
-
-	/* queue of pending UN/SUBSCRIBEs, EMsg's */
-	gint subscribe_id;
-	GQueue subscribe;
-
-	/* working variables at runtime */
-	gint selected_count;
-	gint selected_subscribed_count;
-	guint subscribed_state:1; /* for setting the selection*/
-};
-
-typedef struct _EMSubscribeNode EMSubscribeNode;
-struct _EMSubscribeNode {
-	CamelFolderInfo *info;
-	GtkTreePath *path;
-};
-
-typedef struct _MailMsgListNode MailMsgListNode;
-struct _MailMsgListNode {
-	MailMsg *msg;
-};
-
-static void sub_editor_busy (EMSubscribeEditor *se, gint dir);
-static gint sub_queue_fill_level (EMSubscribe *sub, EMSubscribeNode *node);
-static void sub_selection_changed (GtkTreeSelection *selection, EMSubscribe *sub);
-
-static gboolean
-test_contains (const gchar *where, const gchar *what)
-{
-	gunichar c;
-	const gchar *at = what;
-
-	if (!what || !where)
-		return TRUE;
-
-	while (c = g_utf8_get_char_validated (where, -1), c != 0 && c != (gunichar) -1 && c != (gunichar) -2) {
-		if (g_utf8_get_char (at) == g_unichar_tolower (c)) {
-			at = g_utf8_next_char (at);
-			if (!at || !*at)
-				return TRUE;
-		} else {
-			at = what;
-		}
-		where = g_utf8_next_char (where);
-	}
-
-	return FALSE;
-}
-
-static void
-update_filtering_column (EMSubscribeEditor *se, struct _EMSubscribe *sub)
-{
-	gchar *text;
-	GtkTreeIter iter;
-	GtkTreeModel *list_store;
-	GSList *l;
-
-	g_return_if_fail (se != NULL);
-	g_return_if_fail (sub != NULL);
-	g_return_if_fail (g_utf8_validate (gtk_entry_get_text (GTK_ENTRY (se->filter_entry)), -1, NULL));
-
-	if (!sub->tree)
-		return;
-
-	if (gtk_tree_view_get_model (sub->tree) == sub->list_store)
-		gtk_tree_view_set_model (sub->tree, NULL);
-
-	text = g_utf8_strdown (gtk_entry_get_text (GTK_ENTRY (se->filter_entry)), -1);
-	list_store = sub->list_store;
-
-	gtk_list_store_clear (GTK_LIST_STORE (list_store));
-	for (l = sub->all_selectable; l; l = l->next) {
-		EMSubscribeNode *node = l->data;
-		gboolean bl;
-
-		if (!node || !node->path || !node->info)
-			continue;
-
-		bl = (!text || !*text || (node && node->info && node->info->full_name && test_contains (node->info->full_name, text)));
-		if (!bl)
-			continue;
-
-		gtk_list_store_prepend ((GtkListStore *)list_store, &iter);
-		gtk_list_store_set (GTK_LIST_STORE (list_store), &iter,
-			COL_SUBSCRIBED, (node->info->flags & CAMEL_FOLDER_SUBSCRIBED) != 0,
-			COL_NAME, node->info->full_name,
-			COL_INFO_NODE, node,
-			COL_CAN_SELECT, TRUE,
-			COL_ICON_NAME, em_folder_utils_get_icon_name (node->info->flags),
-			-1);
-	}
-
-	g_free (text);
-
-	if (!gtk_tree_view_get_model (sub->tree)) {
-		gtk_tree_view_set_model (sub->tree, sub->list_store);
-		gtk_tree_view_set_search_column (sub->tree, COL_NAME);
-	}
-}
-
-static void
-sub_node_free (EMSubscribeNode *node)
-{
-	d(printf("sub node free '%s'\n", node->info?node->info->full_name:"<unknown>"));
-	if (node->path)
-		gtk_tree_path_free (node->path);
-	g_free (node);
-}
-
-static void
-sub_ref (EMSubscribe *sub)
-{
-	sub->ref_count++;
-}
-
-static void
-sub_unref (EMSubscribe *sub)
-{
-	GSList *l;
-
-	sub->ref_count--;
-	if (sub->ref_count == 0) {
-		d(printf("subscribe object finalised\n"));
-		/* we dont have to delete the "subscribe" task list, as it must be empty,
-		   otherwise we wouldn't be unreffed (intentional circular reference) */
-		if (sub->tree_store)
-			g_object_unref (sub->tree_store);
-		if (sub->list_store)
-			g_object_unref (sub->list_store);
-		if (sub->folders)
-			g_hash_table_destroy (sub->folders);
-		g_slist_free (sub->all_selectable);
-		g_slist_foreach (sub->tree_expanded_paths, (GFunc) gtk_tree_path_free, NULL);
-		g_slist_free (sub->tree_expanded_paths);
-		l = sub->info_list;
-		while (l) {
-			GSList *n = l->next;
-
-			camel_store_free_folder_info (sub->store, (CamelFolderInfo *)l->data);
-			g_slist_free_1 (l);
-			l = n;
-		}
-		if (sub->store)
-			g_object_unref (sub->store);
-		g_free (sub->store_uri);
-		g_free (sub);
-	}
-}
-
-/* ** Subscribe folder operation **************************************** */
-
-struct _zsubscribe_msg {
-	MailMsg base;
-
-	EMSubscribe *sub;
-	EMSubscribeNode *node;
-	gint subscribe;
-	gchar *path;
-};
-
-static void
-sub_folder_exec (struct _zsubscribe_msg *m)
-{
-	if (m->subscribe)
-		camel_store_subscribe_folder_sync (
-			m->sub->store, m->node->info->full_name,
-			m->base.cancellable, &m->base.error);
-	else
-		camel_store_unsubscribe_folder_sync (
-			m->sub->store, m->node->info->full_name,
-			m->base.cancellable, &m->base.error);
-}
-
-static void
-sub_folder_done (struct _zsubscribe_msg *m)
-{
-	struct _zsubscribe_msg *next;
-	GtkTreeIter iter;
-	GtkTreeModel *model;
-	EMSubscribeNode *node;
-	gboolean subscribed, issub;
-	MailMsgListNode *msgListNode;
-
-	m->sub->subscribe_id = -1;
-	if (m->sub->cancel)
-		return;
-
-	if (m->base.error == NULL) {
-		if (m->subscribe)
-			m->node->info->flags |= CAMEL_FOLDER_SUBSCRIBED;
-		else
-			m->node->info->flags &= ~CAMEL_FOLDER_SUBSCRIBED;
-	}
-
-	/* make sure the tree view matches the correct state */
-	/* all actions are done on tree store, synced to list store */
-	model = m->sub->tree_store;
-	if (gtk_tree_model_get_iter_from_string (model, &iter, m->path)) {
-		issub = (m->node->info->flags & CAMEL_FOLDER_SUBSCRIBED) != 0;
-		gtk_tree_model_get (model, &iter, COL_SUBSCRIBED, &subscribed, COL_INFO_NODE, &node, -1);
-		if (node == m->node) {
-			gtk_tree_store_set ((GtkTreeStore *)model, &iter, COL_SUBSCRIBED, issub, -1);
-		} else {
-			d(printf("node mismatch, or subscribe state changed failed\n"));
-		}
-	}
-
-	/* queue any further ones, or if out, update the ui */
-	msgListNode = g_queue_pop_head (&m->sub->subscribe);
-	if (msgListNode) {
-		next = (struct _zsubscribe_msg *) msgListNode->msg;
-		/* Free the memory of the MailMsgListNode which won't be used anymore. */
-		g_free (msgListNode);
-		next->sub->subscribe_id = next->base.seq;
-                mail_msg_unordered_push (next);
-	} else {
-		/* should it go off the model instead? */
-		sub_selection_changed (gtk_tree_view_get_selection (m->sub->tree), m->sub);
-	}
-}
-
-static void
-sub_folder_free (struct _zsubscribe_msg *m)
-{
-	g_free (m->path);
-	sub_unref (m->sub);
-}
-
-static MailMsgInfo sub_subscribe_folder_info = {
-	sizeof (struct _zsubscribe_msg),
-	(MailMsgDescFunc) NULL,
-	(MailMsgExecFunc) sub_folder_exec,
-	(MailMsgDoneFunc) sub_folder_done,
-	(MailMsgFreeFunc) sub_folder_free
-};
-
-/* spath is tree path in string form */
-static gint
-sub_subscribe_folder (EMSubscribe *sub, EMSubscribeNode *node, gint state, const gchar *spath)
-{
-	struct _zsubscribe_msg *m;
-	MailMsgListNode *msgListNode;
-	gint id;
-
-	m = mail_msg_new (&sub_subscribe_folder_info);
-	m->sub = sub;
-	sub_ref (sub);
-	m->node = node;
-	m->subscribe = state;
-	m->path = g_strdup (spath);
-
-	id = m->base.seq;
-	if (sub->subscribe_id == -1) {
-		sub->subscribe_id = id;
-		d(printf("running subscribe folder '%s'\n", spath));
-		mail_msg_unordered_push (m);
-	} else {
-		msgListNode = g_malloc0 (sizeof (MailMsgListNode));
-		msgListNode->msg = (MailMsg *) m;
-		d(printf("queueing subscribe folder '%s'\n", spath));
-		g_queue_push_tail (&sub->subscribe, msgListNode);
-	}
-
-	return id;
-}
-
-/* ********************************************************************** */
-static void
-sub_fill_levels (EMSubscribe *sub, CamelFolderInfo *info, GtkTreeIter *parent)
-{
-	CamelFolderInfo *fi;
-	GtkTreeStore *treestore;
-	GtkTreeIter iter;
-	EMSubscribeNode *node;
-
-	treestore = (GtkTreeStore *) sub->tree_store;
-	g_return_if_fail (treestore != NULL);
-
-	/* first, fill a level up */
-	fi = info;
-	while (fi) {
-		gboolean known = FALSE;
-
-		if ((node = g_hash_table_lookup (sub->folders, fi->full_name)) == NULL) {
-			gboolean state;
-
-			gtk_tree_store_append (treestore, &iter, parent);
-			node = g_malloc0 (sizeof (*node));
-			node->info = fi;
-			state = (fi->flags & CAMEL_FOLDER_SUBSCRIBED) != 0;
-			gtk_tree_store_set (treestore, &iter,
-				COL_SUBSCRIBED, state,
-				COL_NAME, fi->name,
-				COL_INFO_NODE, node,
-				COL_CAN_SELECT, (fi->flags & CAMEL_FOLDER_NOSELECT) == 0,
-				COL_ICON_NAME, em_folder_utils_get_icon_name (fi->flags),
-				-1);
-			if ((fi->flags & CAMEL_FOLDER_NOSELECT) == 0)
-				sub->all_selectable = g_slist_prepend (sub->all_selectable, node);
-			if (state) {
-				GtkTreePath *path = gtk_tree_model_get_path ((GtkTreeModel *)treestore, &iter);
-				gtk_tree_view_expand_to_path (sub->tree, path);
-				gtk_tree_path_free (path);
-			}
-			if ((fi->flags & CAMEL_FOLDER_NOINFERIORS) == 0)
-				node->path = gtk_tree_model_get_path ((GtkTreeModel *)treestore, &iter);
-			g_hash_table_insert (sub->folders, fi->full_name, node);
-		} else if (node->path) {
-			gtk_tree_model_get_iter (GTK_TREE_MODEL (treestore), &iter, node->path);
-			known = TRUE;
-		}
-
-		d(printf("flags & CAMEL_FOLDER_NOCHILDREN=%d, f & CAMEL_FOLDER_NOINFERIORS=%d\t fi->full_name=[%s], node->path=%p\n",
-			 fi->flags & CAMEL_FOLDER_NOCHILDREN, fi->flags & CAMEL_FOLDER_NOINFERIORS, fi->full_name,
-			 node->path));
-
-		if ((fi->flags & CAMEL_FOLDER_NOINFERIORS) == 0
-		    && node->path) {
-			/* save time, if we have any children alread, dont re-scan */
-			if (fi->child) {
-				d(printf("scanning child '%s'\n", fi->child->full_name));
-				sub_fill_levels (sub, fi->child, &iter);
-			} else if (!(fi->flags & CAMEL_FOLDER_NOCHILDREN)) {
-				d(printf("flags: CAMEL_FOLDER_NOCHILDREN is not set '%s', known:%d\n", fi->full_name, known?1:0));
-			}
-		} else {
-			d(printf("%s:%s: fi->flags & CAMEL_FOLDER_NOINFERIORS=%d\t node->path=[%p]\n",
-				 G_STRLOC, G_STRFUNC, fi->flags & CAMEL_FOLDER_NOINFERIORS,
-				 node->path));
-		}
-
-		fi = fi->next;
-	}
-}
-
-/* async query of folderinfo */
-
-struct _emse_folderinfo_msg {
-	MailMsg base;
-
-	gint seq;
-
-	EMSubscribe *sub;
-	EMSubscribeNode *node;
-	CamelFolderInfo *info;
-};
-
-static void
-sub_folderinfo_exec (struct _emse_folderinfo_msg *m)
-{
-	if (m->seq == m->sub->seq) {
-		/* get the full folder tree for search ability */
-		m->info = camel_store_get_folder_info_sync (
-			m->sub->store, NULL,
-			CAMEL_STORE_FOLDER_INFO_NO_VIRTUAL |
-			CAMEL_STORE_FOLDER_INFO_SUBSCRIPTION_LIST |
-			CAMEL_STORE_FOLDER_INFO_RECURSIVE,
-			m->base.cancellable, &m->base.error);
-	}
-}
-
-static void
-sub_folderinfo_done (struct _emse_folderinfo_msg *m)
-{
-	m->sub->pending_id = -1;
-	if (m->sub->cancel || m->seq != m->sub->seq)
-		return;
-
-	if (m->base.error != NULL)
-		g_warning (
-			"Error getting folder info from store: %s",
-			m->base.error->message);
-
-	if (m->info) {
-		if (m->node) {
-			GtkTreeIter iter;
-
-			gtk_tree_model_get_iter (m->sub->tree_store, &iter, m->node->path);
-			sub_fill_levels (m->sub, m->info, &iter);
-		} else {
-			sub_fill_levels (m->sub, m->info, NULL);
-		}
-
-		if (m->sub->editor->is_filtering)
-			update_filtering_column (m->sub->editor, m->sub);
-	}
-}
-
-static void
-sub_folderinfo_free (struct _emse_folderinfo_msg *m)
-{
-	if (m->info)
-		m->sub->info_list = g_slist_prepend (m->sub->info_list, m->info);
-
-	if (!m->sub->cancel)
-		sub_editor_busy (m->sub->editor, -1);
-
-	/* Now we just load the children on demand, so set the
-	   expand state to true if m->node is not NULL
-	*/
-	if (m->node)
-		gtk_tree_view_expand_row (m->sub->tree, m->node->path, FALSE);
-
-	sub_unref (m->sub);
-}
-
-static MailMsgInfo sub_folderinfo_info = {
-	sizeof (struct _emse_folderinfo_msg),
-	(MailMsgDescFunc) NULL,
-	(MailMsgExecFunc) sub_folderinfo_exec,
-	(MailMsgDoneFunc) sub_folderinfo_done,
-	(MailMsgFreeFunc) sub_folderinfo_free
-};
-
-static gint
-sub_queue_fill_level (EMSubscribe *sub, EMSubscribeNode *node)
-{
-	struct _emse_folderinfo_msg *m;
-	gint id;
-
-	d(printf("%s:%s: Starting get folderinfo of '%s'\n", G_STRLOC, G_STRFUNC,
-		 node?node->info->full_name:"<root>"));
-
-	m = mail_msg_new (&sub_folderinfo_info);
-	sub_ref (sub);
-	m->sub = sub;
-	m->node = node;
-	m->seq = sub->seq;
-
-	sub->pending_id = m->base.seq;
-
-	sub_editor_busy (sub->editor, 1);
-
-	id = m->base.seq;
-
-	mail_msg_unordered_push (m);
-	return id;
-}
-
-static void
-update_buttons_sesitivity (EMSubscribeEditor *se)
-{
-	gboolean is_tree_model;
-
-	if (!se)
-		return;
-
-	is_tree_model = se->current && se->current->tree && !se->is_filtering;
-
-	gtk_widget_set_sensitive (se->expand_button, is_tree_model);
-	gtk_widget_set_sensitive (se->collapse_button, is_tree_model);
-	gtk_widget_set_sensitive (se->refresh_button, se->current && se->current->tree);
-}
-
-/* ********************************************************************** */
-
-/* (un) subscribes the current selection */
-
-static void
-sub_subscribe_toggled (GtkCellRendererToggle *render, const gchar *spath, EMSubscribe *sub)
-{
-	GtkTreeIter iter;
-	GtkTreeModel *model = gtk_tree_view_get_model (sub->tree);
-	EMSubscribeNode *node;
-	gboolean subscribed;
-
-	d(printf("subscribe toggled?\n"));
-
-	if (gtk_tree_model_get_iter_from_string (model, &iter, spath)) {
-		gchar *free_path;
-
-		gtk_tree_model_get (model, &iter, COL_SUBSCRIBED, &subscribed, COL_INFO_NODE, &node, -1);
-		g_return_if_fail (node != NULL);
-		subscribed = !subscribed;
-		d(printf("new state is %s\n", subscribed?"subscribed":"not subscribed"));
-		if (GTK_IS_TREE_STORE (model)) {
-			gtk_tree_store_set ((GtkTreeStore *)model, &iter, COL_SUBSCRIBED, subscribed, -1);
-		} else {
-			/* it's a list store, convert spath to tree path and update tree store value */
-			gtk_list_store_set (GTK_LIST_STORE (model), &iter, COL_SUBSCRIBED, subscribed, -1);
-			if (gtk_tree_model_get_iter (sub->tree_store, &iter, node->path)) {
-				gtk_tree_store_set ((GtkTreeStore *)sub->tree_store, &iter, COL_SUBSCRIBED, subscribed, -1);
-			}
-			free_path = gtk_tree_path_to_string (node->path);
-			if (subscribed)
-				sub->tree_expanded_paths = g_slist_prepend (sub->tree_expanded_paths, gtk_tree_path_copy (node->path));
-			spath = free_path;
-		}
-
-		sub_subscribe_folder (sub, node, subscribed, spath);
-	}
-}
-
-static void sub_do_changed (GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter, gpointer data)
-{
-	EMSubscribe *sub = data;
-	EMSubscribeNode *node;
-	gboolean subscribed;
-
-	gtk_tree_model_get (model, iter, COL_SUBSCRIBED, &subscribed, COL_INFO_NODE, &node, -1);
-
-	if (subscribed)
-		sub->selected_subscribed_count++;
-	sub->selected_count++;
-}
-
-static void
-sub_selection_changed (GtkTreeSelection *selection, EMSubscribe *sub)
-{
-	sub->selected_count = 0;
-	sub->selected_subscribed_count = 0;
-	gtk_tree_selection_selected_foreach (selection, sub_do_changed, sub);
-}
-
-/* double-clicking causes a node item to be evaluated directly */
-static void sub_row_activated (GtkTreeView *tree, GtkTreePath *path, GtkTreeViewColumn *col, EMSubscribe *sub)
-{
-	if (!gtk_tree_view_row_expanded (tree, path))
-		gtk_tree_view_expand_row (tree, path, FALSE);
-	else
-		gtk_tree_view_collapse_row (tree, path);
-
-}
-
-static void
-sub_destroy (GtkWidget *w, EMSubscribe *sub)
-{
-	struct _zsubscribe_msg *m;
-	MailMsgListNode *msgListNode;
-
-	d(printf("subscribe closed\n"));
-	sub->cancel = TRUE;
-
-	if (sub->pending_id != -1)
-		mail_msg_cancel (sub->pending_id);
-
-	if (sub->subscribe_id != -1)
-		mail_msg_cancel (sub->subscribe_id);
-
-	while ((msgListNode = g_queue_pop_head (&sub->subscribe)) != NULL) {
-		m = (struct _zsubscribe_msg *) msgListNode->msg;
-		/* Free the memory of MailMsgListNode which won't be used anymore. */
-		g_free (msgListNode);
-		mail_msg_unref (m);
-	}
-
-	sub_unref (sub);
-}
-
-static EMSubscribe *
-subscribe_new (EMSubscribeEditor *se, const gchar *uri)
-{
-	EMSubscribe *sub;
-
-	sub = g_malloc0 (sizeof (*sub));
-	sub->store_uri = g_strdup (uri);
-	sub->editor = se;
-	sub->ref_count = 1;
-	sub->pending_id = -1;
-	sub->subscribe_id = -1;
-	g_queue_init (&sub->subscribe);
-	sub->store_id = -1;
-
-	return sub;
-}
-
-static void
-subscribe_set_store (EMSubscribe *sub, CamelStore *store)
-{
-	if (store == NULL || !camel_store_supports_subscriptions (store)) {
-		GtkWidget *w = gtk_label_new(_("This store does not support subscriptions, or they are not enabled."));
-
-		gtk_label_set_line_wrap ((GtkLabel *)w, TRUE);
-		sub->widget = gtk_viewport_new (NULL, NULL);
-		gtk_viewport_set_shadow_type ((GtkViewport *)sub->widget, GTK_SHADOW_IN);
-		gtk_container_add ((GtkContainer *)sub->widget, w);
-		gtk_widget_show (w);
-		gtk_widget_show (sub->widget);
-	} else {
-		GtkTreeSelection *selection;
-		GtkTreeViewColumn *column;
-		GtkCellRenderer *renderer;
-
-		sub->all_selectable = NULL;
-		sub->tree_expanded_paths = NULL;
-		sub->store = store;
-		g_object_ref (store);
-		sub->folders = g_hash_table_new_full (
-			g_str_hash, g_str_equal,
-			(GDestroyNotify) NULL,
-			(GDestroyNotify) sub_node_free);
-
-		sub->tree_store = (GtkTreeModel *) gtk_tree_store_new (N_COLUMNS,
-			G_TYPE_BOOLEAN, /* COL_SUBSCRIBED */
-			G_TYPE_STRING,  /* COL_NAME       */
-			G_TYPE_POINTER, /* COL_INFO_NODE  */
-			G_TYPE_BOOLEAN, /* COL_CAN_SELECT */
-			G_TYPE_STRING   /* COL_ICON_NAME  */
-		);
-		g_object_ref_sink (sub->tree_store);
-
-		sub->list_store = (GtkTreeModel *) gtk_list_store_new (N_COLUMNS,
-			G_TYPE_BOOLEAN, /* COL_SUBSCRIBED */
-			G_TYPE_STRING,  /* COL_NAME       */
-			G_TYPE_POINTER, /* COL_INFO_NODE  */
-			G_TYPE_BOOLEAN, /* COL_CAN_SELECT */
-			G_TYPE_STRING   /* COL_ICON_NAME  */
-		);
-		g_object_ref_sink (sub->list_store);
-
-		sub->tree = (GtkTreeView *) gtk_tree_view_new_with_model (sub->editor->is_filtering ? sub->list_store : sub->tree_store);
-		gtk_widget_show ((GtkWidget *)sub->tree);
-
-		sub->widget = gtk_scrolled_window_new (NULL, NULL);
-		gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sub->widget), GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
-		gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (sub->widget), GTK_SHADOW_IN);
-		gtk_container_add ((GtkContainer *)sub->widget, (GtkWidget *)sub->tree);
-		gtk_widget_show (sub->widget);
-
-		renderer = gtk_cell_renderer_toggle_new ();
-		g_object_set(renderer, "activatable", TRUE, NULL);
-		gtk_tree_view_insert_column_with_attributes (sub->tree, -1, _("Subscribed"), renderer, "active", COL_SUBSCRIBED, "visible", COL_CAN_SELECT, NULL);
-		g_signal_connect(renderer, "toggled", G_CALLBACK(sub_subscribe_toggled), sub);
-
-		column = gtk_tree_view_column_new ();
-		gtk_tree_view_column_set_title (column, _("Folder"));
-		gtk_tree_view_append_column (sub->tree, column);
-
-		renderer = gtk_cell_renderer_pixbuf_new ();
-		gtk_tree_view_column_pack_start (column, renderer, FALSE);
-		gtk_tree_view_column_add_attribute (
-			column, renderer, "icon-name", COL_ICON_NAME);
-
-		renderer = gtk_cell_renderer_text_new ();
-		gtk_tree_view_column_pack_start (column, renderer, TRUE);
-		gtk_tree_view_column_add_attribute (
-			column, renderer, "text", COL_NAME);
-		gtk_tree_view_set_expander_column (sub->tree, gtk_tree_view_get_column (sub->tree, 1));
-
-		selection = gtk_tree_view_get_selection (sub->tree);
-		gtk_tree_selection_set_mode (selection, GTK_SELECTION_MULTIPLE);
-		gtk_tree_view_set_headers_visible (sub->tree, FALSE);
-
-		gtk_tree_view_set_search_column (sub->tree, COL_NAME);
-		gtk_tree_view_set_enable_search (sub->tree, TRUE);
-
-		g_signal_connect(sub->tree, "row-activated", G_CALLBACK(sub_row_activated), sub);
-		g_signal_connect(sub->tree, "destroy", G_CALLBACK(sub_destroy), sub);
-
-		sub_selection_changed (selection, sub);
-		g_signal_connect(selection, "changed", G_CALLBACK(sub_selection_changed), sub);
-
-		sub_queue_fill_level (sub, NULL);
-
-		update_buttons_sesitivity (sub->editor);
-	}
-
-	gtk_box_pack_start ((GtkBox *)sub->editor->vbox, sub->widget, TRUE, TRUE, 0);
-}
-
-static void
-sub_editor_destroy (GtkWidget *w, EMSubscribeEditor *se)
-{
-	/* need to clean out pending store opens */
-	d(printf("editor destroyed, freeing editor\n"));
-	if (se->busy_id)
-		g_source_remove (se->busy_id);
-	if (se->refilter_id != 0)
-		g_source_remove (se->refilter_id);
-	se->refilter_id = 0;
-
-	g_free (se);
-}
-
-static void
-sub_editor_close (GtkWidget *w, EMSubscribeEditor *se)
-{
-	gtk_widget_destroy ((GtkWidget *)se->dialog);
-}
-
-static void
-sub_editor_refresh (GtkWidget *w, EMSubscribeEditor *se)
-{
-	EMSubscribe *sub = se->current;
-	GSList *l;
-
-	d(printf("sub editor refresh?\n"));
-	if (sub == NULL || sub->store == NULL)
-		return;
-
-	sub->seq++;
-
-	/* drop any currently pending */
-	if (sub->pending_id != -1) {
-		mail_msg_cancel (sub->pending_id);
-		mail_msg_wait (sub->pending_id);
-	}
-
-	g_slist_free (sub->all_selectable);
-	sub->all_selectable = NULL;
-
-	g_slist_foreach (sub->tree_expanded_paths, (GFunc) gtk_tree_path_free, NULL);
-	g_slist_free (sub->tree_expanded_paths);
-	sub->tree_expanded_paths = NULL;
-
-	gtk_tree_store_clear ((GtkTreeStore *)sub->tree_store);
-	gtk_list_store_clear ((GtkListStore *)sub->list_store);
-
-	if (sub->folders)
-		g_hash_table_destroy (sub->folders);
-	sub->folders = g_hash_table_new_full (
-		g_str_hash, g_str_equal,
-		(GDestroyNotify) NULL,
-		(GDestroyNotify) sub_node_free);
-
-	l = sub->info_list;
-	sub->info_list = NULL;
-	while (l) {
-		GSList *n = l->next;
-
-		camel_store_free_folder_info (sub->store, (CamelFolderInfo *)l->data);
-		g_slist_free_1 (l);
-		l = n;
-	}
-
-	sub_queue_fill_level (sub, NULL);
-}
-
-static void
-sub_editor_got_store (gchar *uri, CamelStore *store, gpointer data)
-{
-	struct _EMSubscribe *sub = data;
-
-	if (!sub->cancel)
-		subscribe_set_store (sub, store);
-	sub_unref (sub);
-}
-
-static void
-sub_editor_combobox_changed (GtkWidget *w, EMSubscribeEditor *se)
-{
-	gint i, n;
-	GList *link;
-
-	d(printf("combobox changed\n"));
-
-	i = 0;
-	n = gtk_combo_box_get_active (GTK_COMBO_BOX (se->combobox));
-	if (n != -1) {
-		GtkTreeIter iter;
-		GtkTreeModel *model;
-
-		gtk_widget_hide (se->none_selected);
-
-		model = gtk_combo_box_get_model (GTK_COMBO_BOX (se->combobox));
-		if (gtk_tree_model_get_iter_first (model, &iter)) {
-			gboolean is_account = TRUE;
-
-			gtk_tree_model_get (model, &iter, 1, &is_account, -1);
-
-			if (!is_account && n > 0) {
-				/* the first node it not an account node, it's the notice
-				   about "select account please", thus remove it completely */
-				gtk_list_store_remove (GTK_LIST_STORE (model), &iter);
-				n--;
-			} else if (!is_account) {
-				gtk_widget_show (se->none_selected);
-				i++;
-			}
-		}
-	}
-
-	if (se->refilter_id != 0) {
-		g_source_remove (se->refilter_id);
-		se->refilter_id = 0;
-	}
-
-	se->current = NULL;
-	link = g_queue_peek_head_link (&se->stores);
-	while (link != NULL) {
-		struct _EMSubscribe *sub = link->data;
-
-		if (i == n) {
-			se->current = sub;
-			if (sub->widget) {
-				gtk_widget_show (sub->widget);
-			} else if (sub->store_id == -1) {
-				sub_ref (sub);
-				sub->store_id = mail_get_store (sub->store_uri, NULL, sub_editor_got_store, sub);
-			}
-		} else {
-			if (sub->widget)
-				gtk_widget_hide (sub->widget);
-		}
-		i++;
-
-		link = g_list_next (link);
-	}
-
-	update_buttons_sesitivity (se);
-
-	if (se->current && se->is_filtering)
-		update_filtering_column (se, se->current);
-}
-
-static gboolean sub_editor_timeout (EMSubscribeEditor *se)
-{
-	gtk_progress_bar_pulse ((GtkProgressBar *)se->progress);
-
-	return TRUE;
-}
-
-static void sub_editor_busy (EMSubscribeEditor *se, gint dir)
-{
-	gint was;
-
-	was = se->busy != 0;
-	se->busy += dir;
-	if (was && !se->busy) {
-		g_source_remove (se->busy_id);
-		se->busy_id = 0;
-		gtk_widget_hide (se->progress);
-	} else if (!was && se->busy) {
-		se->busy_id = g_timeout_add (1000/5, (GSourceFunc)sub_editor_timeout, se);
-		gtk_widget_show (se->progress);
-	}
-}
-
-#define DEFAULT_WIDTH  600
-#define DEFAULT_HEIGHT 400
-
-static GtkAllocation window_size = { 0, 0, 0, 0 };
-
-static void
-window_size_allocate (GtkWidget *widget, GtkAllocation *allocation)
-{
-	GConfClient *gconf;
-
-	/* save to in-memory variable for current session access */
-	window_size = *allocation;
-
-	/* save the setting across sessions */
-	gconf = gconf_client_get_default ();
-	gconf_client_set_int (gconf, "/apps/evolution/mail/subscribe_window/width", window_size.width, NULL);
-	gconf_client_set_int (gconf, "/apps/evolution/mail/subscribe_window/height", window_size.height, NULL);
-	g_object_unref (gconf);
-}
-
-static void
-store_expanded_rows_cb (GtkTreeView *tree_view, GtkTreePath *path, gpointer data)
-{
-	GSList **slist = data;
-
-	g_return_if_fail (path != NULL);
-	g_return_if_fail (data != NULL);
-
-	*slist = g_slist_prepend (*slist, gtk_tree_path_copy (path));
-}
-
-static void
-expand_to_path_cb (GtkTreePath *path, GtkTreeView *tree_view)
-{
-	g_return_if_fail (path != NULL);
-	g_return_if_fail (tree_view != NULL);
-
-	gtk_tree_view_expand_to_path (tree_view, path);
-}
-
-static void
-change_filtering_models (EMSubscribeEditor *se, gboolean turn_on)
-{
-	GList *link;
-
-	link = g_queue_peek_head_link (&se->stores);
-	while (link != NULL) {
-		struct _EMSubscribe *sub = link->data;
-
-		if (sub->widget && sub->tree) {
-			if (turn_on) {
-				g_slist_foreach (sub->tree_expanded_paths, (GFunc) gtk_tree_path_free, NULL);
-				g_slist_free (sub->tree_expanded_paths);
-				sub->tree_expanded_paths = NULL;
-
-				gtk_tree_view_map_expanded_rows (sub->tree, store_expanded_rows_cb, &sub->tree_expanded_paths);
-
-				gtk_list_store_clear (GTK_LIST_STORE (sub->list_store));
-				gtk_tree_view_set_model (sub->tree, sub->list_store);
-			} else {
-				gtk_tree_view_set_model (sub->tree, sub->tree_store);
-
-				g_slist_foreach (sub->tree_expanded_paths, (GFunc) expand_to_path_cb, sub->tree);
-				g_slist_foreach (sub->tree_expanded_paths, (GFunc) gtk_tree_path_free, NULL);
-				g_slist_free (sub->tree_expanded_paths);
-				sub->tree_expanded_paths = NULL;
-			}
-
-			gtk_tree_view_set_search_column (sub->tree, COL_NAME);
-		}
-
-		link = g_list_next (link);
-	}
-
-	update_buttons_sesitivity (se);
-}
-
-static gboolean
-update_filter_on_timeout_cb (gpointer data)
-{
-	EMSubscribeEditor *se = data;
-
-	g_return_val_if_fail (se != NULL, FALSE);
-
-	se->refilter_id = 0;
-	if (se->current) {
-		/* update filtering options */
-		update_filtering_column (se, se->current);
-	}
-
-	return FALSE;
-}
-
-static void
-clear_filter_cb (GtkEntry *entry, GtkEntryIconPosition icon_pos, GdkEvent *event, EMSubscribeEditor *se)
-{
-	g_return_if_fail (entry != NULL);
-
-	gtk_entry_set_text (entry, "");
-}
-
-static void
-filter_changed_cb (GtkEntry *entry, EMSubscribeEditor *se)
-{
-	const gchar *text;
-	gboolean was_filtering;
-
-	g_return_if_fail (entry != NULL);
-	g_return_if_fail (se != NULL);
-
-	text = gtk_entry_get_text (entry);
-	was_filtering = se->is_filtering;
-	se->is_filtering = text && *text;
-	gtk_entry_set_icon_sensitive (GTK_ENTRY (se->filter_entry), GTK_ENTRY_ICON_SECONDARY, se->is_filtering);
-
-	if (se->refilter_id != 0) {
-		g_source_remove (se->refilter_id);
-		se->refilter_id = 0;
-	}
-
-	if ((was_filtering && !se->is_filtering) || (!was_filtering && se->is_filtering)) {
-		/* turn on/off filtering - change models */
-		change_filtering_models (se, se->is_filtering);
-	}
-
-	if (se->is_filtering && se->current)
-		se->refilter_id = g_timeout_add (333, update_filter_on_timeout_cb, se);
-}
-
-static void
-expand_all_cb (GtkButton *button, EMSubscribeEditor *se)
-{
-	g_return_if_fail (se != NULL);
-	g_return_if_fail (!se->is_filtering);
-	g_return_if_fail (se->current != NULL);
-	g_return_if_fail (se->current->tree != NULL);
-
-	gtk_tree_view_expand_all (se->current->tree);
-}
-
-static void
-collapse_all_cb (GtkButton *button, EMSubscribeEditor *se)
-{
-	g_return_if_fail (se != NULL);
-	g_return_if_fail (!se->is_filtering);
-	g_return_if_fail (se->current != NULL);
-	g_return_if_fail (se->current->tree != NULL);
-
-	gtk_tree_view_collapse_all (se->current->tree);
-}
-
-GtkWidget *
-em_subscribe_editor_new (void)
-{
-	EMSubscribeEditor *se;
-	EAccountList *accounts;
-	EIterator *iter;
-	GtkBuilder *builder;
-	GtkWidget *w;
-	GtkWidget *container;
-	GtkCellRenderer *cell;
-	GtkListStore *store;
-	GtkTreeIter gtiter;
-
-	se = g_malloc0 (sizeof (*se));
-	g_queue_init (&se->stores);
-
-	/* XXX I think we're leaking the GtkBuilder. */
-	builder = gtk_builder_new ();
-	e_load_ui_builder_definition (builder, "mail-dialogs.ui");
-
-	se->dialog = (GtkDialog *)e_builder_get_widget (builder, "subscribe_dialog");
-	g_signal_connect(se->dialog, "destroy", G_CALLBACK(sub_editor_destroy), se);
-
-	gtk_widget_ensure_style ((GtkWidget *)se->dialog);
-
-	container = gtk_dialog_get_action_area (GTK_DIALOG (se->dialog));
-	gtk_container_set_border_width (GTK_CONTAINER (container), 12);
-
-	container = gtk_dialog_get_content_area (GTK_DIALOG (se->dialog));
-	gtk_container_set_border_width (GTK_CONTAINER (container), 0);
-
-	se->vbox = e_builder_get_widget(builder, "tree_box");
-
-	/* FIXME: This is just to get the shadow, is there a better way? */
-	w = gtk_label_new(_("Please select a server."));
-	se->none_selected = gtk_viewport_new (NULL, NULL);
-	gtk_viewport_set_shadow_type ((GtkViewport *)se->none_selected, GTK_SHADOW_IN);
-	gtk_container_add ((GtkContainer *)se->none_selected, w);
-	gtk_widget_show (w);
-
-	gtk_box_pack_start ((GtkBox *)se->vbox, se->none_selected, TRUE, TRUE, 0);
-	gtk_widget_show (se->none_selected);
-
-	se->progress = e_builder_get_widget(builder, "progress_bar");
-	gtk_widget_hide (se->progress);
-
-	se->filter_entry = e_builder_get_widget (builder, "filter_entry");
-	gtk_entry_set_icon_sensitive (GTK_ENTRY (se->filter_entry), GTK_ENTRY_ICON_SECONDARY, FALSE);
-	g_signal_connect (se->filter_entry, "icon-press", G_CALLBACK (clear_filter_cb), se);
-	g_signal_connect (se->filter_entry, "changed", G_CALLBACK (filter_changed_cb), se);
-
-	se->expand_button = e_builder_get_widget (builder, "expand_button");
-	g_signal_connect (se->expand_button, "clicked", G_CALLBACK (expand_all_cb), se);
-
-	se->collapse_button = e_builder_get_widget (builder, "collapse_button");
-	g_signal_connect (se->collapse_button, "clicked", G_CALLBACK (collapse_all_cb), se);
-
-	se->refresh_button = e_builder_get_widget (builder, "refresh_button");
-	g_signal_connect (se->refresh_button, "clicked", G_CALLBACK (sub_editor_refresh), se);
-
-	w = e_builder_get_widget (builder, "close_button");
-	g_signal_connect (w, "clicked", G_CALLBACK (sub_editor_close), se);
-
-	/* setup stores combobox */
-	se->combobox = e_builder_get_widget (builder, "store_combobox");
-	store = gtk_list_store_new (2, G_TYPE_STRING, G_TYPE_BOOLEAN);
-	gtk_combo_box_set_model (GTK_COMBO_BOX (se->combobox), GTK_TREE_MODEL (store));
-	g_object_unref (store);
-
-	gtk_cell_layout_clear (GTK_CELL_LAYOUT (se->combobox));
-
-	cell = gtk_cell_renderer_text_new ();
-	gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (se->combobox), cell, TRUE);
-	gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (se->combobox), cell,
-                                  "text", 0,
-                                  NULL);
-
-	gtk_list_store_append (store, &gtiter);
-	gtk_list_store_set (
-		store, &gtiter,
-		0, _("No server has been selected"),
-		1, FALSE,
-		-1);
-
-	accounts = e_get_account_list ();
-	for (iter = e_list_get_iterator ((EList *) accounts);
-	     e_iterator_is_valid (iter);
-	     e_iterator_next (iter)) {
-		EAccount *account = (EAccount *) e_iterator_get (iter);
-
-		/* setup url table, and store table? */
-		if (account->enabled && account->source->url) {
-			d(printf("adding account '%s'\n", account->name));
-			gtk_list_store_append (store, &gtiter);
-			gtk_list_store_set (
-				store, &gtiter,
-				0, account->name,
-				1, TRUE,
-				-1);
-			g_queue_push_tail (
-				&se->stores, subscribe_new (
-				se, account->source->url));
-		} else {
-			d(printf("not adding account '%s'\n", account->name));
-		}
-	}
-	g_object_unref (iter);
-
-	gtk_combo_box_set_active (GTK_COMBO_BOX (se->combobox), 0);
-	g_signal_connect(se->combobox, "changed", G_CALLBACK(sub_editor_combobox_changed), se);
-
-	if (window_size.width == 0) {
-		/* initialize @window_size with the previous session's size */
-		GConfClient *gconf;
-		GError *err = NULL;
-
-		gconf = gconf_client_get_default ();
-
-		window_size.width = gconf_client_get_int (gconf, "/apps/evolution/mail/subscribe_window/width", &err);
-		if (err != NULL) {
-			window_size.width = DEFAULT_WIDTH;
-			g_clear_error (&err);
-		}
-
-		window_size.height = gconf_client_get_int (gconf, "/apps/evolution/mail/subscribe_window/height", &err);
-		if (err != NULL) {
-			window_size.height = DEFAULT_HEIGHT;
-			g_clear_error (&err);
-		}
-
-		g_object_unref (gconf);
-	}
-
-	gtk_window_set_default_size ((GtkWindow *) se->dialog, window_size.width, window_size.height);
-	g_signal_connect (se->dialog, "size-allocate", G_CALLBACK (window_size_allocate), NULL);
-
-	update_buttons_sesitivity (se);
-
-	return GTK_WIDGET (se->dialog);
-}