Merge pull request #1008 in VISUAL/fineui from ~YOUNG/fineui:master to master

* commit '8bd7b7836a05ca268397eb6e0c6f2e4da03ee50b':
  BI-47812 fix: 添加上下文
  revert
  BI-45290 fix: 使用dom node的contains方法
  BI-45290 fix: 组件1滚动到底部后复制，会显示空白或一闪而过空白

src/base/grid/grid.js

@@ -162,7 +162,7 @@ BI.GridView = BI.inherit(BI.Widget, {
                             _columnIndex: columnIndex,
                             _left: columnDatum.offset + horizontalOffsetAdjustment,
                             _top: rowDatum.offset + verticalOffsetAdjustment
-                        }));
+                        }), this);
                         renderedCells.push({
                             el: child,
                             left: columnDatum.offset + horizontalOffsetAdjustment,