zTree 节点文字过多处理方法

zTree setting.view.addDiyDom 方法可以实现自定义控件，指定节点显示内容。因此需要自己实现addDiyDom方法。

如果树节点不显示checkbox ，处理方法为：

function addDiyDom(treeId, treeNode) {
    var spaceWidth = 5;
    var switchObj = $("#" + treeNode.tId + "_switch"),
    icoObj = $("#" + treeNode.tId + "_ico");
    switchObj.remove();
    icoObj.parent().before(switchObj);
    var spantxt = $("#" + treeNode.tId + "_span").html();
    if (spantxt.length > 19) {
        spantxt = spantxt.substring(0, 29) + "...";
        $("#" + treeNode.tId + "_span").html(spantxt);
    }
}

如果树节点有checkbox，处理方法为：

function addDiyDomWithCheck(treeId, treeNode) {
    var spaceWidth = 5;
    var switchObj = $("#" + treeNode.tId + "_switch"),
    checkObj = $("#" + treeNode.tId + "_check"),
    icoObj = $("#" + treeNode.tId + "_ico");
    switchObj.remove();
    checkObj.remove();
    icoObj.parent().before(switchObj);
    icoObj.parent().before(checkObj);

    var spantxt = $("#" + treeNode.tId + "_span").html();
    $("#" + treeNode.tId + "_span").css({"fontSize":13});
    $("#" + treeNode.tId + "_span").attr("data-toggle","tooltip");
    $("#" + treeNode.tId + "_span").attr("data-placement","top");
    if (spantxt.length > 19) {
        spantxt = spantxt.substring(0, 19) + "...";
        $("#" + treeNode.tId + "_span").html(spantxt);
    }

}

zTree view 相关定义如下：

 //树属性的定义  
 var setting = {  
    //页面上的显示效果  
    view: {  
        addHoverDom: addHoverDom, //当鼠标移动到节点上时，显示用户自定义控件  
        removeHoverDom: removeHoverDom, //离开节点时的操作  
        selectedMulti: false,
        txtSelectedEnable: true,
        showLine: true,
        addDiyDom: addDiyDomWithCheck
    }
}

实现效果如下，超长部分将显示为省略号...