电子表格下拉树控件父节不勾选功能

function main(spreadsheetReport) {
    //doCheckDescendents开始
    function doCheckDescendents(treeNode, checked) {
        //响应以前的鼠标事件
        this.doCheckDescendents(treeNode, checked);
        if (checked == 1) {
            onClick(treeNode, 1);
        } else {
            onUnClick(treeNode);
        }
    }
    function onClick(treeNode, checked) {
        var flag = 0;
        if (checked == 1) flag = 1;
        if (treeNode.level !== 0) {
            var tmp = treeNode.parentNode;
            while (tmp) {
                //第一层父节点是否要选中。
                var parentChild = tmp.firstChild;
                while (parentChild) {
                    if (parentChild.checked != 1) {
                        return;
                    }
                    parentChild = parentChild.nextSibling;
                }
                tmp.setChecked(flag);
                tmp = tmp.parentNode;
            }
        }
    }
    function onUnClick(treeNode) {
        onClick(treeNode, 0);
        var tmp = treeNode.parentNode;
        while (tmp) {
            tmp.setChecked(0);
            tmp = tmp.parentNode;
        }
    }
    //doClick开始
    function doClick(e) {
        //响应以前的鼠标事件
        this.btnClick();
        //绑定onMouseDown事件
        var tree = this.dropDownTreePanel.tree;
        tree.onCheckNode.subscribe(doCheckDescendents, tree);
    }
    var paramPanelObjList = spreadsheetReport.paramPanelObj.paramObjList;
    for (var i = 0; i < paramPanelObjList.length; i++) {
        var item = paramPanelObjList[i];
        if (item.bofClassName == "freequery.control.DropDownTree") { //如果是下拉树表控件
            //解除以前的点击事件
            item.removeListener(item.btn, "click", item.btnClick);
            //绑定自点击事件
            item.addListener(item.btn, "click", doClick, item);
        }
    }
}