+
+
+
+/* do we have uid? */
+static gboolean
+has_uid (GSList *list, const gchar *uid)
+{
+ GSList *cursor = list;
+
+ if (!uid)
+ return FALSE;
+
+ while (cursor) {
+ if (cursor->data && strcmp (cursor->data, uid) == 0)
+ return TRUE;
+ cursor = g_slist_next (cursor);
+ }
+ return FALSE;
+}
+
+
+/* remove all from the list have have uid = uid */
+static GSList*
+remove_uid (GSList *list, const gchar *uid)
+{
+ GSList *cursor = list, *start = list;
+
+ if (!uid)
+ return FALSE;
+
+ while (cursor) {
+ GSList *next = g_slist_next (cursor);
+ if (cursor->data && strcmp (cursor->data, uid) == 0) {
+ g_free (cursor->data);
+ start = g_slist_delete_link (start, cursor);
+ }
+ cursor = next;
+ }
+ return start;
+}
+
+
+static GSList *
+append_uid (GSList *list, const gchar *uid)
+{
+ return g_slist_append (list, g_strdup(uid));
+}
+
+
+
+void
+modest_window_mgr_register_header (ModestWindowMgr *self, TnyHeader *header)
+{
+ ModestWindowMgrPrivate *priv;
+ gchar* uid;
+
+ g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
+ g_return_if_fail (TNY_IS_HEADER(header));
+
+ priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
+ uid = modest_tny_folder_get_header_unique_id (header);
+
+ if (!has_uid (priv->preregistered_uids, uid))
+ priv->preregistered_uids = append_uid (priv->preregistered_uids, uid);
+
+ g_free (uid);
+}
+
+void
+modest_window_mgr_unregister_header (ModestWindowMgr *self, TnyHeader *header)
+{
+ ModestWindowMgrPrivate *priv;
+ gchar* uid;
+
+ g_return_if_fail (MODEST_IS_WINDOW_MGR (self));
+ g_return_if_fail (TNY_IS_HEADER(header));
+
+ priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
+ uid = modest_tny_folder_get_header_unique_id (header);
+
+ if (has_uid (priv->preregistered_uids, uid))
+ priv->preregistered_uids = remove_uid (priv->preregistered_uids, uid);
+
+ g_free (uid);
+}
+
+static gint
+compare_msguids (ModestWindow *win,
+ const gchar *uid)
+{
+ const gchar *msg_uid;
+
+ if (!MODEST_IS_MSG_VIEW_WINDOW (win))
+ return 1;
+
+ /* Get message uid from msg window */
+ msg_uid = modest_msg_view_window_get_message_uid (MODEST_MSG_VIEW_WINDOW (win));
+
+ if (msg_uid && uid &&!strcmp (msg_uid, uid))
+ return 0;
+ else
+ return 1;
+}
+
+
+
+gboolean
+modest_window_mgr_find_registered_header (ModestWindowMgr *self, TnyHeader *header,
+ ModestWindow **win)
+{
+ ModestWindowMgrPrivate *priv;
+ gchar* uid;
+ gboolean retval = FALSE;
+ GList *item = NULL;
+
+ g_return_val_if_fail (MODEST_IS_WINDOW_MGR (self), FALSE);
+ g_return_val_if_fail (TNY_IS_HEADER(header), FALSE);
+
+ priv = MODEST_WINDOW_MGR_GET_PRIVATE (self);
+
+ uid = modest_tny_folder_get_header_unique_id (header);
+
+ /* first, look for the window */
+ /* note, the UID cannot be in both the window list and the preregistered uid list */
+ if (priv->window_list) {
+ item = g_list_find_custom (priv->window_list,
+ uid, (GCompareFunc) compare_msguids);
+ if (item)
+ retval = TRUE;
+ if (win)
+ *win = item ? MODEST_WINDOW(item->data) : NULL;
+ }
+
+
+ /* IF It's not in the window list. maybe it's in our uid list... */
+ retval = retval || has_uid (priv->preregistered_uids, uid);
+
+ g_free (uid);
+
+ return retval;
+}
+
+
+