基于jquery的可查询多级select控件（可记录历史选择）
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一、功能和使用
公司有功能需求，还要一条代码引入的控件，网上找完全符合的控件比较难，寻找所花的时间还不如自己写一个，所以找个空闲时间自己写了一个
控件功能：1、可手动输入查询，也可点击下拉框查询，
2、输入时实时定位到下拉框，enter补全
3、可多级查询（目前是写到二级）
4、localStorage存储历史记录
控件使用：引入相应的js和css文件，需要控件的html中加一个div
<div id="multiple_select" class="multiple-select-container"></div>
js里引入控件
$("#multiple_select").multiSelect({
type:‘2‘,//可选择几级数据
data:data.list,
field:[‘provence‘,‘city‘,‘name‘] //option字段
});
二、代码
HTML
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>树形控件</title>
<link href="plugins/bootstrap/css/bootstrap.min.css" rel="stylesheet" type="text/css" /><!--bootstrap CSS-->
<link rel="stylesheet" type="text/css" href="./multiSelect.css" />
</head>
<body style="padding:100px;">
<div id="multiple_select" class="multiple-select-container"></div>
<script src="plugins/jquery-1.10.2.js"></script>
<script src="plugins/bootstrap/js/bootstrap.min.js"></script>
<script src="./multiSelect.js"></script>
<script>
$(function(){
//测试用的数据
var data = {
list:[{
provence:"湖北",
city:[{name:"武汉",code:1}, {name:"仙桃",code:2},{name:"天门",code:3}]
},
{
provence:"河北",
city:[{name:"石家庄",code:1}, {name:"邯郸",code:2},{name:"唐山",code:3}]
},{
provence:"湖南",
city:[{name:"郴州",code:1}, {name:"岳阳",code:2},{name:"长沙",code:3}]
}]
}
//控件引用
$("#multiple_select").multiSelect({
type:‘2‘,//可选择几级数据
data:data.list,
field:[‘provence‘,‘city‘,‘name‘] //option字段
});
});
</script>
</body>
</html>
CSS
*{
padding: 0;
margin: 0;
}
ul li{
list-style: none;
}
.multiple-select-container{
width: 150px;
height: 30px;
position: relative;
}
.select-input{
width: 100%;
height: 100%;
padding: 5px 14px 5px 5px;
border: 1px solid #c2cad8;
outline: none;
border-radius: 3px;
}
.input-isfold{
position: absolute;
display: inline-block;
left: calc(100% - 18px);
top: 50%;
transform: translateY(-50%);
cursor: pointer;
}
.select-options-box{
width:100%;
display:none;
position: absolute;
border: 1px solid #c2cad8;
z-index: 999999;
background: #fff;
height: 300px;
overflow-y: auto;
}
.options-container{
width: 100%;
height: auto;
}
.options-record{
font-size: 16px;
width: 100%;
height: 40px;
box-sizing: border-box;
line-height: 40px;
padding: 0 5px;
background: #EDEDED;
}
.options-one{
font-size: 16px;
}
.options-two{
width: 100%;
font-size: 14px;
}
.options-two li{
padding-left: 15px;
}
.optionslist{
width: 100%;
height: 40px;
box-sizing: border-box;
cursor: pointer;
line-height: 40px;
padding: 0 5px;
}
.optionslist:hover{
background: #c2cad8;
}
.options-isfold{
float: right;
display: inline-block;
width: 16px;
line-height: 40px;
}
::-webkit-scrollbar{
width: 5px;
height: 5px;
}
::-webkit-scrollbar-thumb{
background: #E5E5E5;
border-radius: 3px;
}
JS
;(function($,window,document){
var pluginName = ‘multiSelect‘,
defaults = {
type: ‘1‘,//select层级onetwo
data:[],
field:[],//数据字段名
record: true,
queryFun: function(){}
};
function MultiSelect(element,options){
this.element = element;
this.settings = $.extend({}, defaults, options);
this.init();
}
MultiSelect.prototype = {
//初始化弹出框
init: function(){
var that = this,
element = this.element;
that.create(element);
that.trigger(element);
},
//创建select框
create: function(element){
var that = this,
$this = $(element),
selectElement = ‘<input type="text" name="selectinput" id="select_input" class="select-input" placeholder="请选择" />‘
+‘<span class="input-isfold glyphicon glyphicon-chevron-down"></span>‘
+‘<div class="select-options-box" id="select_options_box"></div>‘;
$this.append(selectElement);
that.initOption();
},
//初始化列表
initOption: function(){
var that = this,
$options_box = $(‘#select_options_box‘);
var $options = that.parseOptions();
$options_box.html($options);
},
//解析并处理options数据
parseOptions: function(){
var that = this,
type = that.settings.type,
field = that.settings.field,
one = field[0],
two = field[1],
data = that.settings.data,
twolist = ‘‘,
optionsTwo = [],
recordColumn = that.settings.recordColumn,
record = that.settings.record,
options = ‘‘;
var recordColumn = JSON.parse(window.localStorage.getItem("recordInfo"))?JSON.parse(window.localStorage.getItem("recordInfo")):[];
console.log("recordColumn" +recordColumn);
options += ‘<div class="options-container">‘;
if (record && recordColumn.length > 0) {
for (var i = 0; i < recordColumn.length; i++) {
twolist += ‘<li class="options-container optionslist">‘+‘-- ‘+‘<span class="options-data">‘+ recordColumn[i] +‘</span></li>‘;
}
options += ‘<div class="options-record">‘
+‘<span class="options-data">历史记录</span><span class="glyphicon glyphicon-chevron-up options-isfold"></span>‘
+‘</div>‘
+‘<ul class="options-two">‘+ twolist +‘</ul>‘;
}
switch(type){
case ‘1‘:
for (var i in data) {
options+=‘<div class="optionslist"><span class="options-data">‘+data[i][one]+‘</span></div>‘;
}
case ‘2‘:
for (var i in data) {
twolist = ‘‘, optionsTwo = [];
var optionsTwo = data[i][two];
for (var j in optionsTwo){
twolist+=‘<li class="options-container optionslist">‘+‘-- ‘+‘<span class="options-data">‘+ optionsTwo[j][field[2]] +‘</span></li>‘;
}
options+= ‘<div class="options-one optionslist">‘
+‘<span class="options-data">‘+ data[i][one] +‘</span><span class="glyphicon glyphicon-chevron-up options-isfold"></span>‘
+‘</div>‘
+‘<ul class="options-two">‘+ twolist +‘</ul>‘;
}
}
options += ‘</div>‘;
return options;
},
//系列事件
trigger: function(element,event){
var that = this,
$this = $(element),
$options_box = $(‘#select_options_box‘),
$isfold = $(‘.options-isfold‘),
recordColumn = that.settings.recordColumn,
record = that.settings.record,
$input = $(‘#select_input‘);
var recordColumn = JSON.parse(window.localStorage.getItem("recordInfo"))?JSON.parse(window.localStorage.getItem("recordInfo")):[];
$input.on({
‘focus‘: function(){
$options_box.fadeIn();
that.selectFun(false);
},
‘input propertychange‘: function(){
that.selectFun(false);
},
‘click‘: function(){
return false;
}
});
$(‘.input-isfold‘).on(‘click‘, function(event){
$options_box.toggle();
$(this).toggleClass(‘glyphicon-chevron-down glyphicon-chevron-up‘);
event.stopPropagation();
})
$isfold.on(‘click‘, function(event){
$(this).parent().next().toggle();
$(this).toggleClass(‘glyphicon-chevron-down glyphicon-chevron-up‘);
$options_box.show();
event.stopPropagation();
})
$(‘.optionslist‘).on({
‘click‘:function(event){
$input.val($(this).find(‘.options-data‘).html());
debugger
if($.isFunction(that.settings.queryFun)){
that.settings.queryFun();
}
if (record) {
var recordCol = $input.val();
// console.log("recordCol"+recordCol+"recordColumn" +recordColumn);
if (JSON.stringify(recordColumn).indexOf(JSON.stringify(recordCol)) < 0){
recordColumn.unshift(recordCol);
}
window.localStorage.setItem("recordInfo", JSON.stringify(recordColumn));
}
$options_box.fadeOut();
event.stopPropagation();
},
‘mouseover‘: function(){
$(this).css({‘background‘:‘#c2cad8‘});
},
‘mouseout‘ : function(){
$(this).css({‘background‘:‘#fff‘});
}
});
$(document).keyup(function(event){
if(event.keyCode === 13){
that.selectFun(true);
if($.isFunction(that.settings.queryFun)){
that.settings.queryFun();
}
}
event.stopPropagation();
});
$(document).on(‘click‘, function(){
$options_box.fadeOut();
});
},
// input与select同步
selectFun: function(enter){
var that = this,
$options_box = $(‘#select_options_box‘),
$input = $(‘#select_input‘),
optiondata = $input.val(),
options = $(‘.optionslist‘),
optionTop = 0,
selectHTML = ‘‘;
$.each(options, function(i, item){
selectHTML = $(item).find(‘.options-data‘).html();
// console.log(selected);
if(selectHTML.indexOf(optiondata) >= 0) {
// $(item).trigger(‘hover‘);
options.css({‘background‘:‘#fff‘});
$(item).css({‘background‘:‘#c2cad8‘});
/*if ($(item).hasClass(‘options-one‘)) {
optionTop = $(item).position().top;
}else{
optionTop = $(item).parent().position().top;
}*/
optionTop = $(item).position().top;
// console.log(optionTop);
$options_box.scrollTop(optionTop);
if (enter) {
$(item).trigger(‘click‘);
}
}
});
if (optiondata === ‘‘) {
options.css({‘background‘:‘#fff‘});
$options_box.scrollTop(0);
}
}
};
$.fn[pluginName] = function(options) {
this.each(function() {
if (!$.data(this, "plugin_" + pluginName)) {
$.data(this, "plugin_" + pluginName, new MultiSelect(this, options));
}
});
return this;
};
})(jQuery,window,document)
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