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代码jiangjie

1
[已关闭问题] 关闭于 2016-06-04 22:48
$.fn.ztreParts = function (p) {
    p = $.extend({       
        type:"get",
        dataType: "text",
        url: "/PagesOperate/BPartsSmallType.dy?method=ExecuteQueryTree",
        width:240,
        data: {},
        level: 1,
        valdefault: "",
        hascheckbox: false,
        chkboxtype: { "Y": "", "N": "" },
        name:"1"
    }, p);       
    var condiv1 = document.createElement("span");    //包裹标签用div
    var txt1 = document.createElement("input");     //显示父类内容
    txt1.type = "text"
    txt1.style.width = p.width + 'px';
    var div1 = document.createElement("div");       //包裹DIv
    var iwidth1 = $(this).css('width');
    var ul1 = document.createElement("ul");
    ul1.id = "ztree" + p.name;
    div1.id = "div" + p.name;
    txt1.name="PartTree"
    txt1.readOnly = "readonly";
    txt1.className = "event_row";
    
        div1.style.width =p.width+'px';
        div1.style.position = "absolute";
        div1.style.border = "1px solid gray";
        div1.style.overflow = "auto";
        div1.style.height = "270px";
       // div1.style.left = "3px";
        div1.style.top = "20px";

    $(this).wrap(condiv1);
    ul1.className = "ztree";
    div1.style.backgroundColor = "#fff";
    div1.style.zIndex = "2000";
    div1.style.display = "none"
    txt1.id = "div" + p.name;
    $(div1).append(ul1);

   
    $(txt1).click(function () {
        $(div1).toggle(500);
        $("body").bind("mousedown", onBodyDown);
    });
 
    var val = $(this);
    if (p.valdefault) {
        $(this).val(p.valdefault);
    }
    $.ajax({
        type: p.type,
        url: p.url,
        data: p.param,
        dataType:p.dataType,
        success: function (data) {
            data = eval("(" + data + ")");
            var setting1 = {
                data: {
                    simpleData: {
                        enable: true
                    }
                },
                callback: {
                    onClick: onClick
                },
                view: {
                    addDiyDom: function (treeId, treeNode) {
                        temp = val.val();
                        for (var i = 0; i < zNodes.length; i++) {
                            var jj = zNodes[i];
                            if (jj.id == temp) {//判断原始值、得出是否为绑定值
                                txt1.value = jj.name;
                            }
                        }
                    }
                }
            }

            var settingck = {
                check: {
                    enable: true,
                    chkboxType: { "Y": "ps", "N": "" }
                },
                data: {
                    simpleData: {
                        enable: true
                    }
                },
                callback: {
                    beforeClick: beforeClick,
                    onCheck: onCheck
                },
                view: {
                    dblClickExpand: false
                }
            };
      
            var zNodes = data;
         
            for (var i = 0; i < zNodes.length; i++) {
                var jj = zNodes[i];
                if (jj.id == val.val()) {
                    txt1.value = jj.name;
                }
            }
            if (p.hascheckbox) {
                $.fn.zTree.init($(ul1), settingck, zNodes);
            }
            else {
                $.fn.zTree.init($(ul1), setting1, zNodes);
            }

        },
        error: function (XMLHttpRequest, textStatus, errorThrown) {
            alert(XMLHttpRequest.readyState);            
        }
    });

    function onClick(event, treeId, treeNode, clickFlag) {
        if (treeNode.level == 1 || p.level<0) {
            $(val).val(treeNode.id);
            txt1.value = treeNode.name;
            div1.style.display = "none";
        }
   
    }

    function beforeClick(treeId, treeNode) {
        var zTree = $.fn.zTree.getZTreeObj("ztree" + p.name);
        zTree.checkNode(treeNode, !treeNode.checked, null, true);
        return false;
    }

    function onCheck(e, treeId, treeNode) {
        var zTree = $.fn.zTree.getZTreeObj("ztree" + p.name);
        nodes = zTree.getCheckedNodes(true);
        var ids = "";
        var names = "";
        for (var i = 0, l = nodes.length; i < l; i++) {
            ids += nodes[i].id + ",";
            names += nodes[i].name + ",";
        }
        if (ids.length > 0) ids = ids.substring(0, ids.length - 1);
        ids += "&";
        if (names.length > 0) names = names.substring(0, names.length - 1);
        $(val).val(ids);
        txt1.value = names;
    }

    $(this).hide().parent().append(div1).append(txt1)[0].style.position = "relative";
    $(function () {
        //绑定需要拖拽改变大小的元素对象 
        //bindResize(document.getElementById('divtwo'));
    });

    function onBodyDown(event) {
        if (!(event.target.id == "div" + p.name || $(event.target).parents("#div" + p.name).length > 0)) {
            div1.style.display = "none";
        }
    }


    function bindResize(el) {
        //初始化参数 
        var els = el.style,
            //鼠标的 X 和 Y 轴坐标 
            x = y = 0;
        $(el).mousedown(function (e) {
            //按下元素后,计算当前鼠标与对象计算后的坐标 

            x = e.clientX - el.offsetWidth,

                y = e.clientY - el.offsetHeight;
            //在支持 setCapture 做些东东 
            el.setCapture ? (
            //捕捉焦点 
                el.setCapture(),
            //设置事件 
                el.onmousemove = function (ev) {
                    mouseMove(ev || event)
                },
                el.onmouseup = mouseUp
            ) : (
                //绑定事件 
                $(document).bind("mousemove", mouseMove).bind("mouseup", mouseUp)
            )
            //防止默认事件发生 
            e.preventDefault()
        });
        //移动事件 
        function mouseMove(e) {
            if (e.clientX - x > 50) {
                els.width = e.clientX - x + 'px'
            }
            if (e.clientY - y > 50) {
                els.height = e.clientY - y + 'px'
            }
        }
        //停止事件 
        function mouseUp() {
            //在支持 releaseCapture 做些东东 
            el.releaseCapture ? (
            //释放焦点 
                el.releaseCapture(),
            //移除事件 
                el.onmousemove = el.onmouseup = null
            ) : (
                //卸载事件 
                $(document).unbind("mousemove", mouseMove).unbind("mouseup", mouseUp)
            )
       }
    }


}

从头讲解一下,这些代码是什么意思

lctk的主页 lctk | 初学一级 | 园豆:69
提问于:2016-04-20 13:48
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