* Moved back the contents style code to the UI actions
[modest] / src / modest-account-mgr.c
index a129e51..25656ab 100644 (file)
@@ -50,37 +50,68 @@ enum {
 static GObjectClass *parent_class = NULL;
 static guint signals[LAST_SIGNAL] = {0};
 
+/* We signal key changes in batches, every X seconds: */
+static gboolean
+on_timeout_notify_changes (gpointer data)
+{
+       ModestAccountMgr *self = MODEST_ACCOUNT_MGR (data);
+       ModestAccountMgrPrivate *priv = MODEST_ACCOUNT_MGR_GET_PRIVATE (self);
+               
+       /* TODO: Also store the account names, and notify one list for each account,
+        * if anything uses the account names. */
+       
+       if (priv->changed_conf_keys) {
+               gchar *default_account = 
+                               modest_account_mgr_get_default_account (self);
+               
+               g_signal_emit (G_OBJECT(self), signals[ACCOUNT_CHANGED_SIGNAL], 0,
+                                default_account, priv->changed_conf_keys, FALSE);
+                       
+               g_free (default_account);
+               
+               g_slist_foreach (priv->changed_conf_keys, (GFunc) g_free, NULL);
+               g_slist_free (priv->changed_conf_keys);
+               priv->changed_conf_keys = NULL;
+       }
+       
+       return TRUE; /* Call this again later. */
+}
+
 static void
 on_key_change (ModestConf *conf, const gchar *key, ModestConfEvent event, gpointer user_data)
 {
-       /* printf("DEBUG: %s: key=%s\n", __FUNCTION__, key); */
-       
        ModestAccountMgr *self = MODEST_ACCOUNT_MGR (user_data);
-       /* ModestAccountMgrPrivate *priv = MODEST_ACCOUNT_MGR_GET_PRIVATE (self); */
+       ModestAccountMgrPrivate *priv = MODEST_ACCOUNT_MGR_GET_PRIVATE (self);
+       gboolean is_account_key;
+       gboolean is_server_account;
+       gchar* account = NULL;
 
        /* there is only one not-really-account key which will still emit
         * a signal: a change in MODEST_CONF_DEFAULT_ACCOUNT */
        if (key && strcmp (key, MODEST_CONF_DEFAULT_ACCOUNT) == 0) {
-               gchar *default_account =
-                       modest_account_mgr_get_default_account (self);
-               g_signal_emit (G_OBJECT(self), signals[ACCOUNT_CHANGED_SIGNAL], 0,
-                              default_account, key, FALSE);
-               g_free (default_account);
-               return;
+               /* Get the default account instead. */
+               
+               /* Store the key for later notification in our timeout callback.
+                * Notifying for every key change would cause unnecessary work: */
+               priv->changed_conf_keys = g_slist_append (priv->changed_conf_keys,
+                       (gpointer) g_strdup (key));
        }
        
-       gboolean is_account_key = FALSE;
-       gboolean is_server_account = FALSE;
-       gchar* account = _modest_account_mgr_account_from_key (key, &is_account_key, &is_server_account);
-       
+       is_account_key = FALSE;
+       is_server_account = FALSE;
+       account = _modest_account_mgr_account_from_key (key, &is_account_key, 
+                                                       &is_server_account);
+
        /* if this is not an account-related key change, ignore */
        if (!account)
                return;
 
-       /* account was removed -- emit this, even if the account was disabled */
-       if (is_account_key && event == MODEST_CONF_EVENT_KEY_UNSET) {
-               g_signal_emit (G_OBJECT(self), signals[ACCOUNT_REMOVED_SIGNAL], 0,
-                              account, is_server_account);
+       /* account was removed. Do not emit an account removed signal
+          because it was already being done in the remove_account
+          method. Do not notify also the removal of the server
+          account keys for the same reason */
+       if ((is_account_key || is_server_account) && 
+           event == MODEST_CONF_EVENT_KEY_UNSET) {
                g_free (account);
                return;
        }
@@ -89,7 +120,7 @@ on_key_change (ModestConf *conf, const gchar *key, ModestConfEvent event, gpoint
        gboolean enabled = FALSE;
        if (is_server_account)
                enabled = TRUE;
-       else 
+       else
                enabled = modest_account_mgr_get_enabled (self, account);
 
        /* Notify is server account was changed, default account was changed
@@ -97,10 +128,12 @@ on_key_change (ModestConf *conf, const gchar *key, ModestConfEvent event, gpoint
         */
        if (enabled ||
            g_str_has_suffix (key, MODEST_ACCOUNT_ENABLED) ||
-           strcmp (key, MODEST_CONF_DEFAULT_ACCOUNT) == 0)
-               g_signal_emit (G_OBJECT(self), signals[ACCOUNT_CHANGED_SIGNAL], 0,
-                              account, key, is_server_account);
-
+           strcmp (key, MODEST_CONF_DEFAULT_ACCOUNT) == 0) {
+               /* Store the key for later notification in our timeout callback.
+                * Notifying for every key change would cause unnecessary work: */
+               priv->changed_conf_keys = g_slist_append (NULL,
+                       (gpointer) g_strdup (key));
+       }
        g_free (account);
 }
 
@@ -158,8 +191,8 @@ modest_account_mgr_class_init (ModestAccountMgrClass * klass)
                              G_SIGNAL_RUN_FIRST,
                              G_STRUCT_OFFSET(ModestAccountMgrClass,account_changed),
                              NULL, NULL,
-                             modest_marshal_VOID__STRING_STRING_BOOLEAN,
-                             G_TYPE_NONE, 3, G_TYPE_STRING, G_TYPE_STRING, G_TYPE_BOOLEAN);
+                             modest_marshal_VOID__STRING_POINTER_BOOLEAN,
+                             G_TYPE_NONE, 3, G_TYPE_STRING, G_TYPE_POINTER, G_TYPE_BOOLEAN);
 }
 
 
@@ -170,18 +203,33 @@ modest_account_mgr_init (ModestAccountMgr * obj)
                MODEST_ACCOUNT_MGR_GET_PRIVATE (obj);
 
        priv->modest_conf = NULL;
+       priv->timeout = g_timeout_add (1000 /* milliseconds */, on_timeout_notify_changes, obj);
 }
 
 static void
 modest_account_mgr_finalize (GObject * obj)
 {
-       ModestAccountMgrPrivate *priv =
+       ModestAccountMgrPrivate *priv = 
                MODEST_ACCOUNT_MGR_GET_PRIVATE (obj);
 
+       if (priv->key_changed_handler_uid) {
+               g_signal_handler_disconnect (priv->modest_conf, 
+                                            priv->key_changed_handler_uid);
+               priv->key_changed_handler_uid = 0;
+       }
+
        if (priv->modest_conf) {
                g_object_unref (G_OBJECT(priv->modest_conf));
                priv->modest_conf = NULL;
        }
+       
+       if (priv->timeout)
+               g_source_remove (priv->timeout);
+               
+       if (priv->changed_conf_keys) {
+               g_slist_foreach (priv->changed_conf_keys, (GFunc) g_free, NULL);
+               g_slist_free (priv->changed_conf_keys);
+       }
 
        G_OBJECT_CLASS(parent_class)->finalize (obj);
 }
@@ -201,9 +249,10 @@ modest_account_mgr_new (ModestConf *conf)
        g_object_ref (G_OBJECT(conf));
        priv->modest_conf = conf;
 
-       g_signal_connect (G_OBJECT (conf), "key_changed",
-                         G_CALLBACK (on_key_change),
-                         obj);
+       priv->key_changed_handler_uid =
+               g_signal_connect (G_OBJECT (conf), "key_changed",
+                                 G_CALLBACK (on_key_change),
+                                 obj);
        
        return MODEST_ACCOUNT_MGR (obj);
 }
@@ -234,7 +283,7 @@ modest_account_mgr_add_account (ModestAccountMgr *self,
        g_return_val_if_fail (strchr(name, '/') == NULL, FALSE);
        
        priv = MODEST_ACCOUNT_MGR_GET_PRIVATE (self);
-       
+
        /*
         * we create the account by adding an account 'dir', with the name <name>,
         * and in that the 'display_name' string key
@@ -268,7 +317,6 @@ modest_account_mgr_add_account (ModestAccountMgr *self,
                                g_printerr ("modest: Error adding store account conf: %s\n", err->message);
                                g_error_free (err);
                        }
-                       
                        return FALSE;
                }
        }
@@ -303,13 +351,11 @@ modest_account_mgr_add_account (ModestAccountMgr *self,
        if (!default_account)
                modest_account_mgr_set_default_account (self, name);
        g_free (default_account);
-       
+
        return TRUE;
 }
 
 
-
-
 gboolean
 modest_account_mgr_add_server_account (ModestAccountMgr * self,
                                       const gchar * name, const gchar *hostname,
@@ -323,13 +369,13 @@ modest_account_mgr_add_server_account (ModestAccountMgr * self,
        gchar *key;
        gboolean ok = TRUE;
        GError *err = NULL;
-       
+
        g_return_val_if_fail (MODEST_IS_ACCOUNT_MGR(self), FALSE);
        g_return_val_if_fail (name, FALSE);
        g_return_val_if_fail (strchr(name, '/') == NULL, FALSE);
                              
        priv = MODEST_ACCOUNT_MGR_GET_PRIVATE (self);
-       
+
        /* hostname */
        key = _modest_account_mgr_get_account_keyname (name, MODEST_ACCOUNT_HOSTNAME, TRUE);
        if (modest_conf_key_exists (priv->modest_conf, key, &err)) {
@@ -473,11 +519,9 @@ modest_account_mgr_add_server_account_uri (ModestAccountMgr * self,
        return TRUE;
 }
 
-
-
 gboolean
 modest_account_mgr_remove_account (ModestAccountMgr * self,
-                                  const gchar * name,  gboolean server_account)
+                                  const gchar* name,  gboolean server_account)
 {
        ModestAccountMgrPrivate *priv;
        gchar *key;
@@ -488,14 +532,14 @@ modest_account_mgr_remove_account (ModestAccountMgr * self,
        g_return_val_if_fail (name, FALSE);
 
        if (!modest_account_mgr_account_exists (self, name, server_account)) {
-               g_printerr ("modest: account '%s' does not exist\n", name);
+               g_printerr ("modest: %s: account '%s' does not exist\n", __FUNCTION__, name);
                return FALSE;
        }
 
-       /* in case we're not deleting an account, also delete the dependent store and transport account */
        if (!server_account) {
                gchar *server_account_name;
-               
+
+               /* in case we're deleting an account, also delete the dependent store and transport account */
                server_account_name = modest_account_mgr_get_string (self, name, MODEST_ACCOUNT_STORE_ACCOUNT,
                                                                    FALSE);
                if (server_account_name) {
@@ -515,7 +559,7 @@ modest_account_mgr_remove_account (ModestAccountMgr * self,
                        g_free (server_account_name);
                } else
                        g_printerr ("modest: could not find the transport account for %s\n", name);
-       }                       
+       }
                        
        priv = MODEST_ACCOUNT_MGR_GET_PRIVATE (self);
        key = _modest_account_mgr_get_account_keyname (name, NULL, server_account);
@@ -534,8 +578,16 @@ modest_account_mgr_remove_account (ModestAccountMgr * self,
                if (default_account_name && (strcmp (default_account_name, name) == 0))
                        modest_account_mgr_unset_default_account (self);
                g_free (default_account_name);
+               
+               /* pick another one as the new default account */
+               modest_account_mgr_set_first_account_as_default (self);
+
+               /* Notify the observers. We do this *after* deleting
+                  the keys, because otherwise a call to account_names
+                  will retrieve also the deleted account */
+               g_signal_emit (G_OBJECT(self), signals[ACCOUNT_REMOVED_SIGNAL], 0,
+                              name, server_account);
        }
-       
        return retval;
 }
 
@@ -621,9 +673,9 @@ modest_account_mgr_account_names (ModestAccountMgr * self, gboolean only_enabled
        g_return_val_if_fail (self, NULL);
 
        priv = MODEST_ACCOUNT_MGR_GET_PRIVATE (self);
-       
        accounts = modest_conf_list_subkeys (priv->modest_conf,
                                              MODEST_ACCOUNT_NAMESPACE, &err);
+
        if (err) {
                g_printerr ("modest: failed to get subkeys (%s): %s\n",
                            MODEST_ACCOUNT_NAMESPACE, err->message);
@@ -947,7 +999,6 @@ modest_account_mgr_account_exists (ModestAccountMgr * self, const gchar * name,
         g_return_val_if_fail (name, FALSE);
 
        keyname = _modest_account_mgr_get_account_keyname (name, NULL, server_account);
-
        priv = MODEST_ACCOUNT_MGR_GET_PRIVATE (self);
        retval = modest_conf_key_exists (priv->modest_conf, keyname, &err);
        if (err) {
@@ -960,8 +1011,8 @@ modest_account_mgr_account_exists (ModestAccountMgr * self, const gchar * name,
        return retval;
 }
 
-gboolean       modest_account_mgr_account_with_display_name_exists       (ModestAccountMgr *self,
-                                                          const gchar *display_name)
+gboolean
+modest_account_mgr_account_with_display_name_exists  (ModestAccountMgr *self, const gchar *display_name)
 {
        GSList *account_names = NULL;
        GSList *cursor = NULL;
@@ -1024,3 +1075,104 @@ modest_account_mgr_unset (ModestAccountMgr *self, const gchar *name,
        g_free (keyname);
        return retval;
 }
+
+gchar*
+_modest_account_mgr_account_from_key (const gchar *key, gboolean *is_account_key, gboolean *is_server_account)
+{
+       /* Initialize input parameters: */
+       if (is_account_key)
+               *is_account_key = FALSE;
+
+       if (is_server_account)
+               *is_server_account = FALSE;
+
+       const gchar* account_ns        = MODEST_ACCOUNT_NAMESPACE "/";
+       const gchar* server_account_ns = MODEST_SERVER_ACCOUNT_NAMESPACE "/";
+       gchar *cursor;
+       gchar *account = NULL;
+
+       /* determine whether it's an account or a server account,
+        * based on the prefix */
+       if (g_str_has_prefix (key, account_ns)) {
+
+               if (is_server_account)
+                       *is_server_account = FALSE;
+               
+               account = g_strdup (key + strlen (account_ns));
+
+       } else if (g_str_has_prefix (key, server_account_ns)) {
+
+               if (is_server_account)
+                       *is_server_account = TRUE;
+               
+               account = g_strdup (key + strlen (server_account_ns));  
+       } else
+               return NULL;
+
+       /* if there are any slashes left in the key, it's not
+        * the toplevel entry for an account
+        */
+       cursor = strstr(account, "/");
+       
+       if (is_account_key && cursor)
+               *is_account_key = TRUE;
+
+       /* put a NULL where the first slash was */
+       if (cursor)
+               *cursor = '\0';
+
+       if (account) {
+               /* The key is an escaped string, so unescape it to get the actual account name: */
+               gchar *unescaped_name = modest_conf_key_unescape (account);
+               g_free (account);
+               return unescaped_name;
+       } else
+               return NULL;
+}
+
+
+
+/* must be freed by caller */
+gchar *
+_modest_account_mgr_get_account_keyname (const gchar *account_name, const gchar * name, gboolean server_account)
+{
+       gchar *retval = NULL;
+       
+       gchar *namespace = server_account ? MODEST_SERVER_ACCOUNT_NAMESPACE : MODEST_ACCOUNT_NAMESPACE;
+       
+       if (!account_name)
+               return g_strdup (namespace);
+       
+       /* Always escape the conf keys, so that it is acceptable to gconf: */
+       gchar *escaped_account_name = account_name ? modest_conf_key_escape (account_name) : NULL;
+       gchar *escaped_name =  name ? modest_conf_key_escape (name) : NULL;
+
+       if (escaped_account_name && escaped_name)
+               retval = g_strconcat (namespace, "/", escaped_account_name, "/", escaped_name, NULL);
+       else if (escaped_account_name)
+               retval = g_strconcat (namespace, "/", escaped_account_name, NULL);
+
+       /* Sanity check: */
+       if (!modest_conf_key_is_valid (retval)) {
+               g_warning ("%s: Generated conf key was invalid: %s", __FUNCTION__, retval);
+               g_free (retval);
+               retval = NULL;
+       }
+
+       g_free (escaped_name);
+       g_free (escaped_account_name);
+
+       return retval;
+}
+
+gboolean
+modest_account_mgr_has_accounts (ModestAccountMgr* self, gboolean enabled)
+{
+       /* Check that at least one account exists: */
+       GSList *account_names = modest_account_mgr_account_names (self,
+                               enabled);
+       gboolean accounts_exist = account_names != NULL;
+       g_slist_free (account_names);
+       
+       return accounts_exist;
+}