/*
*
* 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:
* Jeffrey Stedfast <fejj@ximian.com>
*
* Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <string.h>
#include <libedataserver/e-uid.h>
#include "e-signature-list.h"
struct _ESignatureListPrivate {
GConfClient *gconf;
guint notify_id;
gboolean resave;
};
enum {
SIGNATURE_ADDED,
SIGNATURE_CHANGED,
SIGNATURE_REMOVED,
LAST_SIGNAL
};
static guint signals [LAST_SIGNAL] = { 0 };
static void e_signature_list_class_init (ESignatureListClass *klass);
static void e_signature_list_init (ESignatureList *list, ESignatureListClass *klass);
static void e_signature_list_finalize (GObject *object);
static void e_signature_list_dispose (GObject *object);
static EListClass *parent_class = NULL;
GType
e_signature_list_get_type (void)
{
static GType type = 0;
if (!type) {
GTypeInfo type_info = {
sizeof (ESignatureListClass),
NULL, NULL,
(GClassInitFunc) e_signature_list_class_init,
NULL, NULL,
sizeof (ESignatureList),
0,
(GInstanceInitFunc) e_signature_list_init,
};
type = g_type_register_static (E_TYPE_LIST, "ESignatureList", &type_info, 0);
}
return type;
}
static void
e_signature_list_class_init (ESignatureListClass *klass)
{
GObjectClass *object_class = (GObjectClass *) klass;
parent_class = g_type_class_ref (E_TYPE_LIST);
/* virtual method override */
object_class->dispose = e_signature_list_dispose;
object_class->finalize = e_signature_list_finalize;
/* signals */
signals[SIGNATURE_ADDED] =
g_signal_new ("signature-added",
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (ESignatureListClass, signature_added),
NULL, NULL,
g_cclosure_marshal_VOID__OBJECT,
G_TYPE_NONE, 1,
E_TYPE_SIGNATURE);
signals[SIGNATURE_CHANGED] =
g_signal_new ("signature-changed",
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (ESignatureListClass, signature_changed),
NULL, NULL,
g_cclosure_marshal_VOID__OBJECT,
G_TYPE_NONE, 1,
E_TYPE_SIGNATURE);
signals[SIGNATURE_REMOVED] =
g_signal_new ("signature-removed",
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (ESignatureListClass, signature_removed),
NULL, NULL,
g_cclosure_marshal_VOID__OBJECT,
G_TYPE_NONE, 1,
E_TYPE_SIGNATURE);
}
static void
e_signature_list_init (ESignatureList *list, ESignatureListClass *klass)
{
list->priv = g_new0 (struct _ESignatureListPrivate, 1);
}
static void
e_signature_list_dispose (GObject *object)
{
ESignatureList *list = (ESignatureList *) object;
if (list->priv->gconf) {
if (list->priv->notify_id != 0)
gconf_client_notify_remove (list->priv->gconf, list->priv->notify_id);
g_object_unref (list->priv->gconf);
list->priv->gconf = NULL;
}
G_OBJECT_CLASS (parent_class)->dispose (object);
}
static void
e_signature_list_finalize (GObject *object)
{
ESignatureList *list = (ESignatureList *) object;
g_free (list->priv);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static GSList *
add_autogen (ESignatureList *list, GSList *new_sigs)
{
ESignature *autogen;
autogen = e_signature_new ();
e_signature_set_autogenerated (autogen, TRUE);
e_list_append (E_LIST (list), autogen);
return g_slist_prepend (new_sigs, autogen);
}
static void
gconf_signatures_changed (GConfClient *client, guint cnxn_id, GConfEntry *entry, gpointer user_data)
{
ESignatureList *signature_list = user_data;
GSList *list, *l, *n, *new_sigs = NULL;
gboolean have_autogen = FALSE;
gboolean resave = FALSE;
ESignature *signature;
EList *old_sigs;
EIterator *iter;
gboolean found;
gchar *uid;
old_sigs = e_list_duplicate (E_LIST (signature_list));
list = gconf_client_get_list (client, "/apps/evolution/mail/signatures", GCONF_VALUE_STRING, NULL);
for (l = list; l; l = l->next) {
found = FALSE;
if ((uid = e_signature_uid_from_xml (l->data))) {
/* See if this is an existing signature */
for (iter = e_list_get_iterator (old_sigs); e_iterator_is_valid (iter); e_iterator_next (iter)) {
const gchar *signature_uid;
signature = (ESignature *) e_iterator_get (iter);
signature_uid = e_signature_get_uid (signature);
if (!strcmp (signature_uid, uid)) {
/* The signature still exists, so remove
* it from "old_sigs" and update it.
*/
found = TRUE;
e_iterator_delete (iter);
if (e_signature_set_from_xml (signature, l->data))
g_signal_emit (signature_list, signals[SIGNATURE_CHANGED], 0, signature);
have_autogen |= e_signature_get_autogenerated (signature);
break;
}
}
g_object_unref (iter);
}
if (!found) {
resave = TRUE;
/* Must be a new signature */
signature = e_signature_new_from_xml (l->data);
if (signature) {
have_autogen |= e_signature_get_autogenerated (signature);
e_list_append (E_LIST (signature_list), signature);
new_sigs = g_slist_prepend (new_sigs, signature);
}
}
g_free (uid);
}
if (!have_autogen) {
new_sigs = add_autogen (signature_list, new_sigs);
have_autogen = TRUE;
resave = TRUE;
}
if (new_sigs != NULL) {
/* Now emit signals for each added signature. */
l = g_slist_reverse (new_sigs);
while (l != NULL) {
n = l->next;
signature = l->data;
g_signal_emit (signature_list, signals[SIGNATURE_ADDED], 0, signature);
g_object_unref (signature);
g_slist_free_1 (l);
l = n;
}
}
/* Anything left in old_sigs must have been deleted */
for (iter = e_list_get_iterator (old_sigs); e_iterator_is_valid (iter); e_iterator_next (iter)) {
signature = (ESignature *) e_iterator_get (iter);
e_list_remove (E_LIST (signature_list), signature);
g_signal_emit (signature_list, signals[SIGNATURE_REMOVED], 0, signature);
}
g_object_unref (iter);
g_object_unref (old_sigs);
signature_list->priv->resave = resave;
}
static gpointer
copy_func (gconstpointer data, gpointer closure)
{
GObject *object = (GObject *)data;
g_object_ref (object);
return object;
}
static void
free_func (gpointer data, gpointer closure)
{
g_object_unref (data);
}
/**
* e_signature_list_new:
* @gconf: a #GConfClient
*
* Reads the list of signaturess from @gconf and listens for changes.
* Will emit #signature_added, #signature_changed, and #signature_removed
* signals according to notifications from GConf.
*
* You can modify the list using e_list_append(), e_list_remove(), and
* e_iterator_delete(). After adding, removing, or changing accounts,
* you must call e_signature_list_save() to push the changes back to
* GConf.
*
* Return value: the list of signatures
**/
ESignatureList *
e_signature_list_new (GConfClient *gconf)
{
ESignatureList *signature_list;
g_return_val_if_fail (GCONF_IS_CLIENT (gconf), NULL);
signature_list = g_object_new (E_TYPE_SIGNATURE_LIST, NULL);
e_signature_list_construct (signature_list, gconf);
return signature_list;
}
void
e_signature_list_construct (ESignatureList *signature_list, GConfClient *gconf)
{
g_return_if_fail (GCONF_IS_CLIENT (gconf));
e_list_construct (E_LIST (signature_list), copy_func, free_func, NULL);
signature_list->priv->gconf = gconf;
g_object_ref (gconf);
gconf_client_add_dir (signature_list->priv->gconf,
"/apps/evolution/mail/signatures",
GCONF_CLIENT_PRELOAD_ONELEVEL, NULL);
signature_list->priv->notify_id =
gconf_client_notify_add (signature_list->priv->gconf,
"/apps/evolution/mail/signatures",
gconf_signatures_changed, signature_list,
NULL, NULL);
gconf_signatures_changed (signature_list->priv->gconf,
signature_list->priv->notify_id,
NULL, signature_list);
if (signature_list->priv->resave) {
e_signature_list_save (signature_list);
signature_list->priv->resave = FALSE;
}
}
/**
* e_signature_list_save:
* @signature_list: an #ESignatureList
*
* Saves @signature_list to GConf. Signals will be emitted for changes.
**/
void
e_signature_list_save (ESignatureList *signature_list)
{
GSList *list = NULL;
ESignature *signature;
EIterator *iter;
gchar *xmlbuf;
for (iter = e_list_get_iterator (E_LIST (signature_list));
e_iterator_is_valid (iter);
e_iterator_next (iter)) {
signature = (ESignature *) e_iterator_get (iter);
if ((xmlbuf = e_signature_to_xml (signature)))
list = g_slist_append (list, xmlbuf);
}
g_object_unref (iter);
gconf_client_set_list (signature_list->priv->gconf,
"/apps/evolution/mail/signatures",
GCONF_VALUE_STRING, list, NULL);
while (list) {
g_free (list->data);
list = g_slist_remove (list, list->data);
}
gconf_client_suggest_sync (signature_list->priv->gconf, NULL);
}
/**
* e_signature_list_add:
* @signatures: signature list
* @signature: signature to add
*
* Add an signature to the signature list. Will emit the signature-changed
* event.
**/
void
e_signature_list_add (ESignatureList *signatures, ESignature *signature)
{
e_list_append ((EList *) signatures, signature);
g_signal_emit (signatures, signals[SIGNATURE_ADDED], 0, signature);
}
/**
* e_signature_list_change:
* @signatures: signature list
* @signature: signature to change
*
* Signal that the details of an signature have changed.
**/
void
e_signature_list_change (ESignatureList *signatures, ESignature *signature)
{
/* maybe the signature should do this itself ... */
g_signal_emit (signatures, signals[SIGNATURE_CHANGED], 0, signature);
}
/**
* e_signature_list_remove:
* @signatures: signature list
* @signature: signature
*
* Remove an signature from the signature list, and emit the
* signature-removed signal. If the signature was the default signature,
* then reset the default to the first signature.
**/
void
e_signature_list_remove (ESignatureList *signatures, ESignature *signature)
{
/* not sure if need to ref but no harm */
g_object_ref (signature);
e_list_remove ((EList *) signatures, signature);
g_signal_emit (signatures, signals[SIGNATURE_REMOVED], 0, signature);
g_object_unref (signature);
}
/**
* e_signature_list_find:
* @signatures: signature list
* @type: Type of search.
* @key: Search key.
*
* Perform a search of the signature list on a single key.
*
* @type must be set from one of the following search types:
* E_SIGNATURE_FIND_NAME - Find a signature by signature name.
* E_SIGNATURE_FIND_UID - Find a signature based on UID
*
* Return value: The signature or NULL if it doesn't exist.
**/
const ESignature *
e_signature_list_find (ESignatureList *signatures,
e_signature_find_t type,
const gchar *key)
{
ESignature *signature = NULL;
EIterator *it;
/* this could use a callback for more flexibility ...
... but this makes the common cases easier */
if (!key)
return NULL;
for (it = e_list_get_iterator ((EList *) signatures);
e_iterator_is_valid (it);
e_iterator_next (it)) {
const gchar *value;
/* XXX EIterator misuses const. */
signature = (ESignature *) e_iterator_get (it);
switch (type) {
case E_SIGNATURE_FIND_NAME:
value = e_signature_get_name (signature);
break;
case E_SIGNATURE_FIND_UID:
value = e_signature_get_uid (signature);
break;
}
if (g_strcmp0 (value, key) == 0)
break;
signature = NULL;
}
g_object_unref (it);
return signature;
}
