* add some param checks

[modest] / src / widgets / modest-window-mgr.c

diff --git a/src/widgets/modest-window-mgr.c b/src/widgets/modest-window-mgr.c
index 6d03595..cd25126 100644 (file)
--- a/src/widgets/modest-window-mgr.c
+++ b/src/widgets/modest-window-mgr.c
@@ -1165,9 +1165,13 @@ on_modal_dialog_close (GtkDialog *dialog,
 gint 
 modest_window_mgr_num_windows (ModestWindowMgr *self)
 {
-       ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE(self);
+       ModestWindowMgrPrivate *priv;
        gint num_windows = 0;
 
+       g_return_val_if_fail (self && MODEST_IS_WINDOW_MGR(self), -1);
+       
+       priv =  MODEST_WINDOW_MGR_GET_PRIVATE(self);
+       
        if (priv->window_list)
                num_windows = g_list_length (priv->window_list);
 
@@ -1178,8 +1182,12 @@ GtkWidget *
 modest_window_mgr_get_msg_edit_window (ModestWindowMgr *self)
 {
        GtkWidget *result;
-       ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE(self);
+       ModestWindowMgrPrivate *priv;
+
+       g_return_val_if_fail (self && MODEST_IS_WINDOW_MGR(self), NULL);
 
+       priv = MODEST_WINDOW_MGR_GET_PRIVATE(self);
+               
        if (priv->cached_editor) {
                result = priv->cached_editor;
                priv->cached_editor = NULL;
@@ -1195,7 +1203,11 @@ GtkWidget *
 modest_window_mgr_get_msg_view_window (ModestWindowMgr *self)
 {
        GtkWidget *result;
-       ModestWindowMgrPrivate *priv = MODEST_WINDOW_MGR_GET_PRIVATE(self);
+       ModestWindowMgrPrivate *priv;
+
+       g_return_val_if_fail (self && MODEST_IS_WINDOW_MGR(self), NULL);
+       
+       priv = MODEST_WINDOW_MGR_GET_PRIVATE(self);
 
        if (priv->cached_view) {
                result = priv->cached_view;
@@ -1207,3 +1219,4 @@ modest_window_mgr_get_msg_view_window (ModestWindowMgr *self)
 
        return result;
 }
+