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自定义无限极简洁菜单展开(兼容IE8)

1.demo：单页html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>自定义简洁无限极分类</title>
    <link rel="stylesheet" type="text/css" href="js/plugins/tree-label/css/tree-label.css" />

    <style>
        .out {
            font-size: 30px;
            padding-left: 20px;
            padding-top: 20px;
        }
    </style>
</head>
<body>

<div>
    <div style="float: left;  20%">
        <div id="box"></div>
    </div>
    <div id="content-out" class="out" style="float: left;  70%;">
        <div>Joker</div>
    </div>
</div>


<script type="text/javascript" src="https://libs.baidu.com/jquery/1.4.2/jquery.min.js"></script>
<script type="text/javascript" src="js/plugins/tree-label/js/tree-label.js"></script>
<script>
    //数据格式
    var data = [
        {
            id: '1003',
            disabled: false,
            label: '自定义分类3',
            pid: null,
            children: [
                {id: '100301', disabled: false, label: '自定义分类100301', pid: '1003', children: [
                        {id: '10030101', disabled: true, label: '自定义分类10030100', pid: '100301', children: []},
                        {id: '10030102', disabled: true, label: '自定义分类10030200', pid: '100301', children: []},
                        {id: '10030103', disabled: true, label: '自定义分类10030300', pid: '100301', children: []},
                        {id: '10030104', disabled: true, label: '自定义分类10030400', pid: '100301', children: []},
                        {id: '10030105', disabled: true, label: '自定义分类10030500', pid: '100301', children: []},
                    ]},
                {id: '100302', disabled: false, label: '自定义分类100302', pid: '1003', children: []},
                {id: '100303', disabled: false, label: '自定义分类100303', pid: '1003', children: []},
                {id: '100304', disabled: false, label: '自定义分类100304', pid: '1003', children: []},
                {id: '100305', disabled: false, label: '自定义分类100305', pid: '1003', children: []},
            ]
        },
        {
            id: '1004',
            disabled: false,
            label: '自定义分类4',
            pid: null,
            children: [
                {id: '100400', disabled: false, label: '自定义分类100301', pid: '1004', children: [
                        {id: '10040101', disabled: false, label: '自定义分类10040100', pid: '100400', children: []},
                        {id: '10040102', disabled: false, label: '自定义分类10040200', pid: '100400', children: []},
                        {id: '10040103', disabled: false, label: '自定义分类10040300', pid: '100400', children: []},
                        {id: '10040104', disabled: false, label: '自定义分类10040400', pid: '100400', children: []},
                        {id: '10040105', disabled: false, label: '自定义分类10040500', pid: '100400', children: []},
                    ]},
                {id: '100401', disabled: false, label: '自定义分类100401', pid: 1004, children: []},
                {id: '100402', disabled: false, label: '自定义分类100402', pid: 1004, children: []},
                {id: '100403', disabled: false, label: '自定义分类100403', pid: 1004, children: []},
                {id: '100404', disabled: false, label: '自定义分类100404', pid: 1004, children: []},
                {id: '100405', disabled: false, label: '自定义分类100405', pid: 1004, children: []},
            ]
        },
    ];

    var param = {
        //父控件id
        id: 'box',
        //数据
        data: data,
        //展开速度
        speed: 200,
        //控件高度
        height: $(this).height(),
        //控件箭头图标
        icon: 'img/jt_right.png',
        //点击事件回调
        clickCallback: function(id, isParent){
            var content = {
                id: id,
                isParent: isParent,
                isDisabled: false
            }
            $('#content-out').append('<div>'+JSON.stringify(content)+'</div>');
        },
        //disabled点击事件回调
        disabledCallback: function(id, isParent){
            var content = {
                id: id,
                isParent: isParent,
                isDisabled: true
            }
            $('#content-out').append('<div>'+JSON.stringify(content)+'</div>');
        }
    }

    //调用
    Joker.init(param);
</script>
</body>
</html>

2. 框架css：tree-label.css

.height-joker {
    height: 20px;
    line-height: 20px;
}
.width-joker {
    height: 20px;
    line-height: 20px;
}
.text-content-joker {
    height: 100%;
    line-height: 100%;
    vertical-align: top;
    font-size: 20px;
}
.box-content-joker {
    padding: 15px 0;
}
.box-content-joker:hover {
    background-color: #ABA6AD;
}
.line-box-joker {
    padding-left: 40px;
}

.open-joker {
    transform:rotate(90deg);
    -ms-transform:rotate(90deg); 	/* IE 9 */
    -moz-transform:rotate(90deg); 	/* Firefox */
    -webkit-transform:rotate(90deg); /* Safari 和 Chrome */
    -o-transform:rotate(90deg); 	/* Opera */
}
.has-no-children-joker {
    display: none;
}
.need-hide-joker {
    display: none;
}

.none-select-joker{
    -webkit-user-select:none;
    -moz-user-select:none;
    -ms-user-select:none;
    user-select:none;
    -webkit-text-size-adjust:none
}

.disable-select-joker:after {
    content: attr(data-content);
}

.scroll-bar-joker {
    scrollbar-face-color:#C1C1C1; /*滚动条3D表面（ThreedFace）的颜色*/
    scrollbar-highlight-color:#fff; /*滚动条3D界面的亮边（ThreedHighlight）颜色*/
    scrollbar-shadow-color:#eeeeee; /*滚动条3D界面的暗边（ThreedShadow）颜色*/
    scrollbar-3dlight-color:#eeeeee; /*滚动条亮边框颜色*/
    scrollbar-arrow-color:#000; /*滚动条方向箭头的颜色 */
    scrollbar-track-color:#fff; /*滚动条的拖动区域(TrackBar)颜色*/
    scrollbar-darkshadow-color:#fff; /*滚动条暗边框（ThreedDarkShadow）颜色*/
}

/*---滚动条默认显示样式--*/
::-webkit-scrollbar-thumb{
    background-color: #C1C1C1;
    height:50px;
    outline-offset:-2px;
    outline:2px solid #fff;
    -webkit-border-radius:4px;
    border: 2px solid #fff;
}
/*---鼠标点击滚动条显示样式--*/
::-webkit-scrollbar-thumb:hover{
    background-color: #C1C1C1;
    height:50px;
    -webkit-border-radius:4px;
}
/*---滚动条大小--*/
::-webkit-scrollbar{
    8px;
    height:8px;
}
/*---滚动框背景样式--*/
::-webkit-scrollbar-track-piece{
    background-color:#fff;
    -webkit-border-radius:0;
}

3.框架js：tree-label.js

Joker = function () {
    function initBox() {
        var box = $('#' + id);
        box.addClass('none-select-joker line-box-joker scroll-bar-joker')
        box.css('overflow-y', 'auto');
        box.attr('onselectstart', 'return false');
        box.height(height);
        box.append(setData(data));
    }

    function setData(data, pid, level) {
        pid = getDefaultValue(pid);
        level = getDefaultValue(level, 0);
        var content = '<div class="' + isChildren(pid) + ' is-parent" p-id="' + getPid(pid) + '">';
        for (var i = 0; i < data.length; i++) {
            if (!hasValue(data[i])) {
                break;
            }
            var has_children = hasValue(data[i]['children']) && data[i]['children'].length !== 0;
            content += '<div class="box-content-joker" ' + getDisabled(data[i]) +
                ' style="margin-left: ' + level * 30 + 'px" ' +
                's-id="' + data[i]["id"] + '">
' +
                '              <div class="height-joker" style="vertical-align: middle">
' +
                '                  <span class="' + (has_children ? '' : 'has-no-children-joker') + '"><img class="height-joker width-joker" src="' + icon + '"></span>
' +
                '                  <span class="disable-select-joker text-content-joker" data-content="' + data[i]['label'] + '"></span>
' +
                '              </div>
' +
                '          </div>';
            if (has_children) {
                content += setData(data[i]['children'], data[i]['id'], level + 1);
            }
        }
        content += '</div>';
        return content;
    }

    function initClick() {
        var isSmoothing = false;
        $('.box-content-joker').click(function () {
            if(isSmoothing){
                return;
            }
            var next = $(this).next();
            if ($(this).attr("disabled-joker")) {
                if(typeof disabledCallback === "function"){
                    if(!next.hasClass('is-parent')){
                        disabledCallback($(this).attr('s-id'), false);
                    }else {
                        disabledCallback($(this).attr('s-id'), true);
                    }
                }
                return;
            }
            if(!next.hasClass('is-parent')){
                if (typeof clickCallback === "function") {
                    clickCallback($(this).attr('s-id'), false);
                }
                return;
            }
            var useIe8 = useIE8();
            if (next.is(':hidden')) {
                //目前是隐藏的
                if (useIe8) {
                    $(this).find('img').css({filter: 'progid:DXImageTransform.Microsoft.BasicImage(rotation=1)'});
                }
                $(this).find('img').addClass('open-joker');
                isSmoothing = true;
                next.slideDown(speed, function () {
                    closeChildren();
                });
            } else {
                if (useIe8) {
                    $(this).find('img.open-joker').css({filter: 'progid:DXImageTransform.Microsoft.BasicImage(rotation=0)'});
                }
                $(this).find('img.open-joker').removeClass('open-joker');
                isSmoothing = true;
                next.slideUp(speed, function () {
                    closeChildren();
                });
            }

            //所有子元素关闭
            function closeChildren() {
                isSmoothing = false;
                //图标
                if (useIe8) {
                    next.find('.is-parent').prev().find('img').css({filter: 'progid:DXImageTransform.Microsoft.BasicImage(rotation=0)'});
                }
                next.find('.is-parent').prev().find('img').removeClass('open-joker');
                //所有子元素
                next.find('.is-parent').hide();
            }

            if (typeof clickCallback === "function") {
                clickCallback($(this).attr('s-id'), true);
            }
        });
    }

    function getValue(param) {
        id = getDefaultValue(param['id'], 'box');
        speed = getDefaultValue(param['speed'], 100);
        height = getDefaultValue(param['height'], $(this).height());
        data = getDefaultValue(param['data']);
        icon = getDefaultValue(param['icon'], 'img/jt_right.png');
        clickCallback = getDefaultValue(param['clickCallback']);
        disabledCallback = getDefaultValue(param['disabledCallback']);
    }

    var id;//父控件id
    var data;//数据
    var speed;//展开速度
    var height;//控件高度
    var icon;//控件箭头图标
    var clickCallback;//点击事件回调
    var disabledCallback;//disabled点击事件回调
    return {
        init: function (param) {
            getValue(param);
            initBox();
            initClick();
        }
    }
}();

function hasValue(value) {
    return typeof value !== 'undefined' && value !== undefined && value != null;
}

function getDisabled(data) {
    return data['disabled'] ? 'disabled-joker=true' : '';
}

function isChildren(pid) {
    return !!pid ? 'need-hide-joker' : '';
}

function getPid(pid) {
    return !!pid ? pid : '';
}

function getDefaultValue(value, defaultValue) {
    if (hasValue(value)) {
        return value;
    }
    if (hasValue(defaultValue)) {
        return defaultValue;
    }
    return "";
}

function useIE8() {
    return $.browser.msie;
}

4.所用图片

下图右键即可另存为，或者直接复制地址用浏览器打开再保存图片

https://img2020.cnblogs.com/blog/1345528/202108/1345528-20210813235523540-462798512.png

5.说明

IE8兼容伪元素，所以文字使用伪元素展示，不易被选中
IE8不兼容transform属性，所以使用滤镜filter来达到图片旋转目的
以上框架使用Jquery作为基础，且在1.4.2版本下通过测试

6.多个浏览器兼容

Google

Firefox

Edge

IE8

查看全文

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原文地址：https://www.cnblogs.com/zqm-sau/p/15139606.html