//**********************************
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//** 本插件依赖 贤心 layui form模块
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//** 由 小巷 制作 QQ：151446298
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//** 版本3.0 时间 2018-01-10 20:48
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//**********************************
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//构造
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function layuiXtree(options) {
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var _this = this;
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_this._containerid = options.elem;
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_this._container = document.getElementById(options.elem); //容器
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_this._container.style.minHeight = "100px";
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_this._options = options;
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_this.Loading(options);
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}
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//封装IE8 Class选择
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layuiXtree.prototype.getByClassName = function (cn) {
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if (document.getElementsByClassName) return this._container.getElementsByClassName(cn);
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var _xlist = this._container.childNodes;
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var _xtemp = new Array();
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for (var i = 0; i < _xlist.length; i++) {
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var _xchild = _xlist[i];
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var _xclassNames = _xchild.getAttribute('class').split(' ');
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for (var j = 0; j < _xclassNames.length; j++) {
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if (_xclassNames[j] == cn) {
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_xtemp.push(_xchild);
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break;
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}
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}
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}
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return _xtemp;
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}
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//在一个对象下面找子级
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layuiXtree.prototype.getChildByClassName = function (obj, cn) {
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var _xlist = obj.childNodes;
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var _xtemp = new Array();
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for (var i = 0; i < _xlist.length; i++) {
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var _xchild = _xlist[i];
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var _xclassNames = _xchild.getAttribute('class').split(' ');
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for (var j = 0; j < _xclassNames.length; j++) {
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if (_xclassNames[j] == cn) {
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_xtemp.push(_xchild);
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break;
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}
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}
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}
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return _xtemp;
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}
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//加载特效，且获取数据
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layuiXtree.prototype.Loading = function (options) {
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var _this = this;
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_this.xloading = document.createElement("span"); //创建加载对象
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_this.xloading.setAttribute('class', 'layui-icon layui-anim layui-anim-rotate layui-anim-loop');
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_this.xloading.innerHTML = '';
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_this.xloading.style.fontSize = "50px";
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_this.xloading.style.color = "#009688";
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_this.xloading.style.fontWeight = "bold";
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_this.xloading.style.marginLeft = _this._container.offsetWidth / 2 - 25 + 'px';
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_this.xloading.style.marginTop = _this._container.offsetHeight / 2 - 50 + 'px';
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_this._container.innerHTML = '';
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_this._container.appendChild(_this.xloading); //加载显示
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if (typeof (options.data) == 'object') {
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_this._dataJson = options.data;
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_this.Initial(options);
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return;
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}
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//如果是字符串url，进行异步加载
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var obj = new XMLHttpRequest();
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obj.open('get', options.data, true);
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obj.onreadystatechange = function () {
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if (obj.readyState == 4 && obj.status == 200 || obj.status == 304) { //回调成功
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_this._dataJson = eval('(' + obj.responseText + ')'); //将返回的数据转为json
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_this.Initial(options);
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}
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};
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obj.send();
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}
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//data验证后的数据初始化
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layuiXtree.prototype.Initial = function (o) {
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var _this = this;
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_this._form = o.form; //layui from对象
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_this._domStr = ""; //结构字符串
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_this._isopen = o.isopen != null ? o.isopen : true;
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if (o.color == null) o.color = { open: '#2F4056', close: '#2F4056', end: '#2F4056' };//图标颜色
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_this._iconOpenColor = o.color.open != null ? o.color.open : "#2F4056";
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_this._iconCloseColor = o.color.close != null ? o.color.close : "#2F4056";
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_this._iconEndColor = o.color.end != null ? o.color.end : "#2F4056";
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if (o.icon == null) o.icon = { open: '', close: '', end: '' };//图标样式
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_this._iconOpen = o.icon.open != null ? o.icon.open : '';
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_this._iconClose = o.icon.close != null ? o.icon.close : '';
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_this._iconEnd = o.icon.end != null ? o.icon.end : '';
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_this._click = o.click != null ? o.click : function () { };
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_this._ckall = o.ckall != null ? o.ckall : false; //全选是否启用
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_this._ckallSuccess = o.ckallback != null ? o.ckallback : function () { };//全选回调
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_this.CreateCkAll();
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_this.dataBind(_this._dataJson);
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_this.Rendering();
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}
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//全选框
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layuiXtree.prototype.CreateCkAll = function () {
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var _this = this;
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if (_this._ckall) {
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_this._domStr += '<div class="layui-xtree-item">';
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_this._domStr += '<input type="checkbox" class="layui-xtree-checkbox layui-xtree-ckall" title="全选" lay-skin="primary" lay-filter="xtreeckall' + _this._containerid + '">';
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_this._domStr += '</div>';
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}
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}
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//生产结构
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layuiXtree.prototype.dataBind = function (d) {
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var _this = this;
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d=d||[];
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if (d.length > 0) {
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for (var i=0;i< d.length;i++) {
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var xtree_isend = '';
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var xtree_ischecked = '';
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var xtree_isdisabled = d[i].disabled ? ' disabled="disabled" ' : '';
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_this._domStr += '<div class="layui-xtree-item">';
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d[i].data=d[i].data||[];
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if (d[i].data.length > 0)
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_this._domStr += '<i class="layui-icon layui-xtree-icon" data-xtree="' + (_this._isopen ? '1' : '0') + '">' + (_this._isopen ? _this._iconOpen : _this._iconClose) + '</i>';
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else {
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_this._domStr += '<i class="layui-icon layui-xtree-icon-null">' + _this._iconEnd + '</i>';
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xtree_isend = 'data-xend="1"';
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xtree_ischecked = d[i].checked ? ' checked ' : '';
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xtree_isdisabled = d[i].disabled ? ' disabled="disabled" ' : '';
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}
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_this._domStr += '<input type="checkbox" class="layui-xtree-checkbox" ' + xtree_isend + xtree_ischecked + xtree_isdisabled + ' value="' + d[i].value + '" title="' + d[i].title + '" lay-skin="primary" lay-filter="xtreeck' + _this._containerid + '">';
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_this.dataBind(d[i].data);
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_this._domStr += '</div>';
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}
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}
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}
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//渲染呈现
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layuiXtree.prototype.Rendering = function () {
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var _this = this;
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_this._container.innerHTML = _this._domStr;
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_this._domStr = "";
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//检查选中状态
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var xtree_ckitems = _this.getByClassName('layui-xtree-checkbox');
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for (var i = 0; i < xtree_ckitems.length; i++) {
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if (xtree_ckitems[i].getAttribute('data-xend') == '1' && xtree_ckitems[i].checked) {
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_this.ParentCheckboxChecked(xtree_ckitems[i]);
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}
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}
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_this._form.render('checkbox'); //layui渲染
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var xtree_items = _this.getByClassName('layui-xtree-item');
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var xtree_icons = _this.getByClassName('layui-xtree-icon');
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var xtree_nullicons = _this.getByClassName('layui-xtree-icon-null');
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for (var i = 0; i < xtree_items.length; i++) {
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if (xtree_items[i].parentNode == _this._container)
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xtree_items[i].style.margin = '5px 0 0 0px';
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else {
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xtree_items[i].style.margin = '18px 0 0 20px';
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if (!_this._isopen) xtree_items[i].style.display = 'none';
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}
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}
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for (var i = 0; i < xtree_icons.length; i++) {
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xtree_icons[i].style.position = "relative";
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xtree_icons[i].style.top = "2px";
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xtree_icons[i].style.margin = "0 5px 0 0";
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xtree_icons[i].style.fontSize = "16px";
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xtree_icons[i].style.color = _this._isopen ? _this._iconOpenColor : _this._iconCloseColor;
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xtree_icons[i].style.cursor = "pointer";
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xtree_icons[i].onclick = function () {
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var xtree_chi = this.parentNode.childNodes;
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if (this.getAttribute('data-xtree') == 1) {
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for (var j = 0; j < xtree_chi.length; j++) {
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if (xtree_chi[j].getAttribute('class') == 'layui-xtree-item')
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xtree_chi[j].style.display = 'none';
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}
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this.setAttribute('data-xtree', '0')
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this.innerHTML = _this._iconClose;
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this.style.color = _this._iconCloseColor;
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} else {
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for (var j = 0; j < xtree_chi.length; j++) {
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if (xtree_chi[j].getAttribute('class') == 'layui-xtree-item')
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xtree_chi[j].style.display = 'block';
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}
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this.setAttribute('data-xtree', '1')
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this.innerHTML = _this._iconOpen;
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this.style.color = _this._iconOpenColor;
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}
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}
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}
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for (var i = 0; i < xtree_nullicons.length; i++) {
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xtree_nullicons[i].style.position = "relative";
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xtree_nullicons[i].style.top = "2px";
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xtree_nullicons[i].style.margin = "0 5px 0 0";
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xtree_nullicons[i].style.fontSize = "16px";
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xtree_nullicons[i].style.color = _this._iconEndColor;
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}
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_this._form.on('checkbox(xtreeck' + _this._containerid + ')', function (da) {
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//获取当前点击复选框的容器下面的所有子级容器
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var xtree_chis = da.elem.parentNode.getElementsByClassName('layui-xtree-item');
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//遍历它们，选中状态与它们的父级一致（类似全选功能）
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for (var i = 0; i < xtree_chis.length; i++) {
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if (!_this.getChildByClassName(xtree_chis[i], 'layui-xtree-checkbox')[0].disabled) {
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_this.getChildByClassName(xtree_chis[i], 'layui-xtree-checkbox')[0].checked = da.elem.checked;
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if (da.elem.checked) _this.getChildByClassName(xtree_chis[i], 'layui-xtree-checkbox')[0].nextSibling.classList.add('layui-form-checked');
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else _this.getChildByClassName(xtree_chis[i], 'layui-xtree-checkbox')[0].nextSibling.classList.remove('layui-form-checked');
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}
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}
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_this.ParendCheck(da.elem);
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_this._click(da);
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});
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var _xtree_disableds = _this.getByClassName('layui-disabled');
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for (var i = 0; i < _xtree_disableds.length; i++) {
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_xtree_disableds[i].getElementsByTagName('span')[0].style.color = "#B5B5B5";
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}
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//全选按钮
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if (_this._ckall) {
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_this._form.on('checkbox(xtreeckall' + _this._containerid + ')', function (data) {
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var xtree_allck = data.elem.parentNode.parentNode.getElementsByClassName('layui-form-checkbox');
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for (var i = 0; i < xtree_allck.length; i++) {
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if (xtree_allck[i].getAttribute('class').indexOf('layui-checkbox-disbaled') == -1) {
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if (data.elem.checked) {
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xtree_allck[i].classList.add('layui-form-checked');
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}
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else {
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xtree_allck[i].classList.remove('layui-form-checked');
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}
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xtree_allck[i].parentNode.getElementsByClassName('layui-xtree-checkbox')[0].checked = data.elem.checked;
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}
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}
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_this._ckallSuccess();
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});
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}
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}
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//更新渲染
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layuiXtree.prototype.render = function () {
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var _this = this;
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_this.Loading(_this._options);
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}
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//子节点选中改变，父节点更改自身状态
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layuiXtree.prototype.ParendCheck = function (ckelem) {
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var _this = this;
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var xtree_p = ckelem.parentNode.parentNode;
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if (xtree_p.getAttribute('class') == 'layui-xtree-item') {
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var xtree_all = _this.getChildByClassName(xtree_p, 'layui-xtree-item');
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var xtree_count = 0;
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for (var i = 0; i < xtree_all.length; i++) {
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if (_this.getChildByClassName(xtree_all[i], 'layui-xtree-checkbox')[0].checked) {
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xtree_count++;
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}
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}
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if (xtree_count <= 0) {
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_this.getChildByClassName(xtree_p, 'layui-xtree-checkbox')[0].checked = false;
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_this.getChildByClassName(xtree_p, 'layui-xtree-checkbox')[0].nextSibling.classList.remove('layui-form-checked');
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} else {
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_this.getChildByClassName(xtree_p, 'layui-xtree-checkbox')[0].checked = true;
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_this.getChildByClassName(xtree_p, 'layui-xtree-checkbox')[0].nextSibling.classList.add('layui-form-checked');
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}
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this.ParendCheck(_this.getChildByClassName(xtree_p, 'layui-xtree-checkbox')[0]);
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}
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}
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//渲染之前按照选中的末级去改变父级选中状态
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layuiXtree.prototype.ParentCheckboxChecked = function (e) {
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var _this = this;
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if (e.parentNode.parentNode.getAttribute('class') == 'layui-xtree-item') {
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var _pe = _this.getChildByClassName(e.parentNode.parentNode, 'layui-xtree-checkbox')[0];
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_pe.checked = true;
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_this.ParentCheckboxChecked(_pe);
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}
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}
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//获取全部选中的末级checkbox对象
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layuiXtree.prototype.GetChecked = function () {
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var _this = this;
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var arr = new Array();
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var arrIndex = 0;
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var cks = _this.getByClassName('layui-xtree-checkbox');
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for (var i = 0; i < cks.length; i++) {
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if (cks[i].checked && cks[i].getAttribute('data-xend') == '1') {
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arr[arrIndex] = cks[i]; arrIndex++;
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}
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}
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return arr;
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}
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//获取全部的原始checkbox对象
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layuiXtree.prototype.GetAllCheckBox = function () {
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var _this = this;
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var arr = new Array();
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var arrIndex = 0;
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var cks = _this.getByClassName('layui-xtree-checkbox');
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for (var i = 0; i < cks.length; i++) {
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arr[arrIndex] = cks[i]; arrIndex++;
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}
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return arr;
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}
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//根据值来获取其父级的checkbox原dom对象
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layuiXtree.prototype.GetParent = function (a) {
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var _this = this;
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var cks = _this.getByClassName('layui-xtree-checkbox');
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for (var i = 0; i < cks.length; i++) {
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if (cks[i].value == a) {
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if (cks[i].parentNode.parentNode.getAttribute('id') == _this._container.getAttribute('id')) return null;
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return _this.getChildByClassName(cks[i].parentNode.parentNode, 'layui-xtree-checkbox')[0];
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}
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}
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return null;
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}
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