铁雪资源网 Design By www.gsvan.com

项目中需要自定义一个下拉框多选插件,业务问题还是自己实现比较好

通过$.fn 向jQuery添加新的方法

下拉数据通过参数传递进去,通过调用该插件时接收,选择后的确定与取消事件采用事件传递方式

代码如下:  

1.效果图

jQuery自定义多选下拉框效果

2.代码

<div id="demo" class="dropdown-container">
 <div class="dropdown-display">
  <span></span>
  <input type="text" class="iptdiplay" placeholder="请选择" readonly="readonly" />
 </div>
 <div class="dropdown-panel">
  <div class="dropdown-search">
  <span></span>
  <input type="text" class="iptsearch" placeholder="关键字搜索" />
  </div>
  <ul class="dd-select">
  <!-- area for dropdown items -->
  </ul>
  <div class="dropdown-opt">
  <button class="dd-btn ok">确定</button>
  <button class="dd-btn cancel">取消</button>
  </div>
 </div>
 </div> 

.dropdown-container{
 display: block;
 width: 200px;
 height: 30px;
 padding: 0px;
 position: relative;
 margin: 0px auto;
}

.dropdown-display{
 display: block;
 height: 30px;
 position: absolute;
 top: 0;
 width:100%;
 margin: 0px;
 border:1px solid steelblue;
}
.dropdown-display span{
 background: url(../static/choose_down_icon_01.png) no-repeat left 8px;
 display: block;
 height: 25px;
 width: 10px;
 position: absolute;
 right: 5px;
 top: 3px;
}
.dropdown-display input[class='iptdiplay']{
 border: none;
 border-color: transparent;
 background: transparent;
 border-radius: 0px;
 box-shadow: none;
 height: 30px;
 width: 100%;
 margin: 0px;
 box-sizing: border-box;
 box-shadow: none;
 padding-left: 10px;
 padding-right: 18px;
 outline: none;
 cursor: pointer;
 text-overflow: ellipsis;
}
.dropdown-panel {
 position: absolute;
 top: 32px;
 width:100%;
 padding: 0px;
 display: none;
 border-left: 1px solid steelblue;
 border-bottom: 1px solid steelblue;
 border-right: 1px solid steelblue;
}

.dropdown-panel .dropdown-search{
 display: block;
 width: 100%;
 height: 30px;
}
.dropdown-search span{
 background: url(../static/chosen-sprite.png) no-repeat 100% -20px,linear-gradient(#eee 1%,#fff 15%);
 display: block;
 height: 25px;
 width: 20px;
 position: absolute;
 right: 0px;
 top: 3px;
}
.dropdown-search input[class='iptsearch']{
 border: none;
 border-color: transparent;
 background: transparent;
 border-radius: 0px;
 box-shadow: none;
 height: 30px;
 width: 100%;
 margin: 0px;
 box-sizing: border-box;
 box-shadow: none;
 padding-left: 10px;
 outline: none;
}
.dropdown-panel .dd-select{
 display: block;
 width:100%;
 position: relative;
 height: auto;
 margin: 0px;
 padding:0px !important;
 box-sizing: border-box;
 list-style-type: none;
 text-align: left;
 max-height: 300px;
 overflow-y: scroll;
 overflow-x: hidden;
}
.dd-item{
 display: block;
 height: 30px;
 line-height: 30px;
 padding-left: 5px;
 border-bottom: 1px solid steelblue;
 font-size: 13px;
 z-index: 8;
 overflow: hidden;
}
.dd-item .dd-v{
 width: 0px;
 height: 0px;
 display: none;
}
.dd-item .dd-k{
 z-index: 8;
 padding-left: 15px;
}
.dd-item:first-child{
 border-top: 1px solid steelblue;
}
.dd-item:last-child{
 border-bottom: none;
}
.dd-select .on{
 background-color: steelblue\9;
}
.dd-item:hover::before,.dd-item:hover before{
 content:'\2714';
 position: absolute;
 left: 0px;
 color: #79a979
 z-index: 9;
 font-size: 16px;
 padding-right: 3px;
 padding-left: 2px;
 background-color: #fff;
}
.dd-select .on::before,.dd-select .on before{
 content:'\2714';
 position: absolute;
 left: 0px;
 color: green;
 z-index: 9;
 font-size: 16px;
 padding-right: 3px;
 padding-left: 2px;
 background-color: #fff;
}
.dd-item:hover{
 cursor: pointer;
 background-color: #ccc;
}
.dropdown-container .dropdown-opt{
 width:100%;
 text-align: center;
 position: absolute;
 left: -1px;
 bottom: -30px;
 padding: 0px;
 border-left: 1px solid steelblue;
 border-bottom: 1px solid steelblue;
 border-right: 1px solid steelblue;
 box-sizing: content-box;
}
.dropdown-container .dd-btn{
 color: #333;
 height: 28px !important;
 display: inline-block;
 background-color: #e6e6e6;
 border-color: #adadad;
 user-select: none;
 background-image: none;
 border: 1px solid transparent;
 border-radius: 4px;
 margin: 0px 15px;
}
.dropdown-container .dd-btn:hover{
 color:#fff;
 background-color: steelblue;
}
/* scrollbar */
.dropdown-container ::-webkit-scrollbar { width: 5px; height: 10px; } 
.dropdown-container ::-webkit-scrollbar-track, 
.dropdown-container ::-webkit-scrollbar-thumb { border-radius: 999px; border: 5px solid transparent; } 
.dropdown-container ::-webkit-scrollbar-track { box-shadow: 1px 1px 5px rgba(0,0,0,.2) inset; } 
.dropdown-container ::-webkit-scrollbar-thumb { min-height: 20px; background-clip: content-box; box-shadow: 0 0 0 5px rgba(0,0,0,.2) inset; } 
.dropdown-container ::-webkit-scrollbar-corner { background: transparent; }

3.Jquery插件

;(function ($,window,document,undefined) {
 var _pluginName="jqDropdown";

 var defaults = {
  items:[]
 };

 var parm=[];

 //es5 filter hack
 if (!Array.prototype.filter){
   Array.prototype.filter = function(fun){
   var len = this.length;
   if (typeof fun != "function") throw new TypeError(); 
    var res = new Array();
   var _arg = arguments[1];
   for (var i = 0; i < len; i++){
     if (i in this){
     var val = this[i];
     if (fun.call(_arg, val, i, this)) res.push(val);
     }
   } 
    return res;
   };
 }
 if(!Array.prototype.indexOf) {
  Array.prototype.indexOf = function (elem, startFrom) {
   var startFrom = startFrom || 0;
   if (startFrom > this.length) return -1;

   for (var i = 0; i < this.length; i++) {
    if (this[i] == elem && startFrom <= i) {
     return i;
    } else if (this[i] == elem && startFrom > i) {
     return -1;
    }
   }
   return -1;
  }
 }
 var init = function (o,opts,okFn,cancelFn) {
  var _panel=$(o);
  var _ul=_panel.find(".dd-select:eq(0)");

  function createDropItems(items,p){
   p=p||[];
   _ul.empty();
   var _curretVal=$(".iptdiplay").val();
   for(var i=0,len=items.length;i<len;i++){
    var _d=items[i];
    var _li='<li class="{{DC}}"> <span class="dd-v">{{DV}}</span><span class="dd-k">{{DK}}</span></li>';
    _ul.append(_li.replace(/{{DV}}/g, _d.val).replace(/{{DK}}/g,_d.name).replace(/{{DC}}/g,p.indexOf(_d.val.toString())>-1".iptdiplay").val(disArr.join('|'));
   });
  };

  //init to build dropdown items
  createDropItems(opts.items||[]);

  function toggleDrop(){

   $(".dropdown-panel").slideToggle();
  };

  
  //search
  $(".iptsearch").bind("input propertychange",function(e){
   if(!e) return;
   var _sk=e.currentTarget.value;
   var _items=opts.items||[];
   createDropItems(_items.filter(function(d){

    return d.name.indexOf(_sk)>-1; 
   }),parm);
  });

  //Toggle dropdown
  $(".dropdown-display").click(function(){

   toggleDrop();
  });

  //OK button event
  $(".dropdown-opt button.ok").click(function(){
   toggleDrop();
   okFn&&okFn.apply(this,[parm]);
  });

  //Cancel button event
  $(".dropdown-opt button.cancel").click(function(){

   toggleDrop();
   cancelFn&&cancelFn.call(this);
  });
 };

 $.fn[_pluginName] = function (options,okFn,cancelFn) {

  var options = $.extend(defaults, options);
  return this.each(function () {

   init(this,options,okFn,cancelFn);
  });
 }
})(jQuery,window,document);

4.页面调用示例

<script>

 var data=[
  { name:'http://58.100.3.12',val:1 },
  { name:'http://44.168.4.13',val:2 },
  { name:'http://192.168.2.1/sdfsf/234234/234/2/34/23',val:3 },
  { name:'http://220.199.5.14',val:4 },
  { name:'http://127.1.62.15',val:5 },
  { name:'http://127.1.62.15',val:6 },
  { name:'http://127.1.62.15',val:7 },
  { name:'http://127.1.62.15',val:8 },
  { name:'http://127.1.62.15',val:9 },
  { name:'http://127.1.62.15',val:10 },
  { name:'http://127.1.62.15',val:11 },
  { name:'http://127.1.62.15',val:12 },
  { name:'http://127.1.62.15',val:13 },
  { name:'http://127.1.62.15',val:14},
  { name:'http://127.1.62.15',val:15 },
  { name:'http://127.1.62.15',val:16 },
  { name:'http://127.1.62.15',val:17 },
  { name:'http://127.1.62.15',val:18 },
  { name:'http://127.1.62.15',val:19 },
  { name:'http://127.1.62.15',val:20 },
  { name:'http://127.1.62.15',val:21 },
  { name:'http://127.1.62.15',val:22 },
  { name:'http://127.1.62.15',val:23 },
  { name:'http://127.1.62.15',val:24 },
  { name:'http://127.1.62.15',val:25 },
  { name:'http://127.1.62.15',val:26 },
  { name:'http://127.1.62.15',val:27 },
  { name:'http://127.1.62.15',val:28 },
  { name:'http://127.1.62.15',val:29 }
 ];

 $("#demo").jqDropdown({ items:data },function(e){

  console.dir(e);
 },function(){

  console.log('canceled by user !');
 });

 </script>

5.输出

jQuery自定义多选下拉框效果

6.不足

  页面样式在不支持css3浏览器中显示有问题 后期需要改进

     下拉数据为一次性渲染 如有需要 可设置滚动加载

     下拉框滚动条的美化未兼容所有浏览器

      搜索时检索数据直接源自页面数据 所有需要添加延迟处理 获取服务端数据

以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持。

标签:
jQuery选择下拉框,jQuery多选下拉框,jQuery自定义多选下拉框

铁雪资源网 Design By www.gsvan.com
广告合作:本站广告合作请联系QQ:858582 申请时备注:广告合作(否则不回)
免责声明:本站文章均来自网站采集或用户投稿,网站不提供任何软件下载或自行开发的软件! 如有用户或公司发现本站内容信息存在侵权行为,请邮件告知! 858582#qq.com
铁雪资源网 Design By www.gsvan.com

评论“jQuery自定义多选下拉框效果”

暂无jQuery自定义多选下拉框效果的评论...

稳了!魔兽国服回归的3条重磅消息!官宣时间再确认!

昨天有一位朋友在大神群里分享,自己亚服账号被封号之后居然弹出了国服的封号信息对话框。

这里面让他访问的是一个国服的战网网址,com.cn和后面的zh都非常明白地表明这就是国服战网。

而他在复制这个网址并且进行登录之后,确实是网易的网址,也就是我们熟悉的停服之后国服发布的暴雪游戏产品运营到期开放退款的说明。这是一件比较奇怪的事情,因为以前都没有出现这样的情况,现在突然提示跳转到国服战网的网址,是不是说明了简体中文客户端已经开始进行更新了呢?