private void SetSearched(IEditor editor, string s, bool isFirst, bool isForward)
 {
     if (editor.Model is MemoText)
     {
         /// MemoTextならフォーカスして検索
         editor.RequestSelect(SelectKind.True, true);
         editor.RequestFocus(FocusKind.Begin, null);
         var focus = editor.Focus as StyledTextFocus;
         if (focus != null)
         {
             if (!isForward)
             {
                 /// 最初のcaret位置を一番最後の文字に
                 focus.MoveEndOfText();
             }
             SearchInFocus(focus, s, isFirst, isForward);
         }
     }
     else
     {
         /// MemoTextでなければ選択
         editor.RequestSelect(SelectKind.True, true);
         EditorCanvas.EnsureVisible(editor);
     }
 }