diff options
Diffstat (limited to 'e-util/e-signature-list.c')
| -rw-r--r-- | e-util/e-signature-list.c | 428 |
1 files changed, 428 insertions, 0 deletions
diff --git a/e-util/e-signature-list.c b/e-util/e-signature-list.c new file mode 100644 index 0000000000..315ea8f042 --- /dev/null +++ b/e-util/e-signature-list.c @@ -0,0 +1,428 @@ +/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ +/* + * Authors: Jeffrey Stedfast <fejj@ximian.com> + * + * Copyright 2004 Ximian, Inc. (www.ximian.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Street #330, Boston, MA 02111-1307, USA. + * + */ + + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <string.h> + +#include "e-util-marshal.h" + +#include "e-signature-list.h" + +struct _ESignatureListPrivate { + GConfClient *gconf; + guint notify_id; +}; + +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, + e_util_marshal_NONE__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, + e_util_marshal_NONE__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, + e_util_marshal_NONE__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 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; + ESignature *signature; + EList *old_sigs; + EIterator *iter; + char *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) { + uid = e_signature_uid_from_xml (l->data); + if (!uid) + continue; + + /* See if this is an existing signature */ + for (iter = e_list_get_iterator (old_sigs); e_iterator_is_valid (iter); e_iterator_next (iter)) { + signature = (ESignature *) e_iterator_get (iter); + if (!strcmp (signature->uid, uid)) { + /* The signature still exists, so remove + * it from "old_sigs" and update it. + */ + e_iterator_delete (iter); + if (e_signature_set_from_xml (signature, l->data)) + g_signal_emit (signature_list, signals[SIGNATURE_CHANGED], 0, signature); + goto next; + } + } + + /* Must be a new signature */ + signature = e_signature_new_from_xml (l->data); + e_list_append (E_LIST (signature_list), signature); + new_sigs = g_slist_prepend (new_sigs, signature); + + next: + g_free (uid); + g_object_unref (iter); + } + + /* Now emit signals for each added signature. */ + l = 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); +} + +static void * +copy_func (const void *data, void *closure) +{ + GObject *object = (GObject *)data; + + g_object_ref (object); + + return object; +} + +static void +free_func (void *data, void *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); +} + + +/** + * 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; + char *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 char *key) +{ + const ESignature *signature = NULL; + EIterator *it; + char *val; + + /* 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)) { + int found = 0; + + signature = (const ESignature *) e_iterator_get (it); + + val = NULL; + switch (type) { + case E_SIGNATURE_FIND_NAME: + found = strcmp (signature->name, key) == 0; + break; + case E_SIGNATURE_FIND_UID: + found = strcmp (signature->uid, key) == 0; + break; + } + + if (found) + break; + + signature = NULL; + } + + g_object_unref (it); + + return signature; +} |