JQuery SELECT单选模拟jQuery.select.js_jquery

基于jQuery JavaScript Library v1.3.2 的单选模拟
(本文件是跟据 zhangjingwei 的Jquery Select(单选) 模拟插件 V1.3.4 修改而来的)
a. 修改的主要原因是，原来的zhangjingwei的模拟在显示方式上的问题。在跟文字交替出现时会出现错位。现将模拟DIV的display修改为inline方式。更自然的嵌入到文本行中。
b.在加载文件后自动转化样式名为'commonselect' 的select。简化调用
c.对select的onchange()事件的响应。以及宽度获取的小调整
jquery.select.js

复制代码 代码如下:

/*
* jQuery.select.js
*/
jQuery.fn.sSelect = function(){
    var selectId = $(this).attr('id');
    var selectZindex = $(this).css('z-index');
    var selectIndex = $('#'+selectId+' > select > option').index($('#'+selectId+' > select > option:selected')[0]);
    $('#'+selectId).append('

');
    $('#' selectId ' > div > h4').empty().append($('#' selectId ' > select > option:selected').text());
    $('.dropselectbox').css("display", 'block');

    //取select的宽度 优先级 select样式中的宽度 - select自动的宽度 - 默认为60
    var selectcssWidth = $('#' selectId '> select').css('width');
    selectcssWidth = typeof(selectcssWidth) =='undefined' ? 0 : parseInt(selectcssWidth.replace('px','')) 5 ;
    var selectWidth = selectcssWidth ? selectcssWidth : ( $('#' selectId '> select').width() > 0 ? $('#' selectId '> select').width() 5 : 60);
    $('#' selectId).css("margin-right",selectWidth);    //修改偏移量
    $('#' selectId ' > div > h4').css("width", selectWidth); //将原select的宽度赋值给生成的select（并不是h4的总宽度）
    $('#' selectId ' > div > ul').css("width",selectWidth); //将h4的总宽度赋值给Ul
    $('#' selectId ' > select').hide();
    $('#' selectId ' > div').hover(function(){
        $('#' selectId ' > div > h4').addClass("over");
        $('#' selectId ' > div > span').addClass("over");
    },function(){
        $('#' selectId ' > div > h4').removeClass("over");
        $('#' selectId ' > div > span').removeClass("over");
    });
    $('#' selectId)
    .bind("focus",function(){
        __clearSelectMenu();
        $('#' selectId ' > div > h4').addClass("over");
        $('#' selectId ' > div > span').addClass("over");
    })
    .bind("click",function(e){
        //$('#value2').append('点击：' selectIndex '  
');
        if($('#' selectId ' > div > ul').css("display") == 'block'){
            __clearSelectMenu(selectId);
            return false;
        }else{
            if ($.browser.opera){__clearSelectMenu();}
            $('#' selectId ' > div > h4').addClass("current");
            $('#' selectId ' > div > span').addClass("over").addClass("current");
            $('#' selectId ' > div > ul').show();
            var selectZindex = $(this).css('z-index');
            if ($.browser.msie || $.browser.opera){        
                $('.dropdown').removeClass('overclass');        
            }
            $('#' selectId).addClass('overclass');
            __setSelectValue(selectId);
            var windowspace = ($(window).scrollTop() document.documentElement.clientHeight) - $(this).offset().top;
            var ulspace = $('#' selectId ' > div > ul').outerHeight(true);
            var windowspace2 = $(this).offset().top - $(window).scrollTop() - ulspace;
            if (windowspace < ulspace && windowspace2 > 0) {
                $('#' selectId ' > div > ul').css({top:-ulspace}）；
            }else{
                $('#' selectId ' > div > ul').css({top:$('#' selectId ' > div > h4').outerHeight(true) });
            }
            selectIndex = $('#' selectId ' > div > ul > li').index($('.selectedli')[0]);
            $(window).scroll(function(){
                var windowspace = ($(window).scrollTop() document.documentElement.clientHeight) - $('#' selectId).offset().top;
                var ulspace = $('#' selectId ' > div > ul').outerHeight(true);
               if (windowspace                     $('#' select id'> div > ul').css({top:-ulspace});
               }else{
                   $('#' selectId ' > div > ul').css({top:$(' #'selectId'>div>h4').outerHeight(true)});
            //响应鼠标点击选择
            $('#' selectId ' > div > ul > li').click(function(e){                                        
                    selectIndex = $('#' selectId ' > div > ul > li').index(this);
                   //$('鼠标点击：' selectIndex '  
');
                  $ ('#' selectId '> select')[0].selectedIndex =
                    $('#' selectId ' > div > h4').empty().append($('#' selectId); ' > 选择 > 选项：已选择').text());
                  __clearSelectMenu(selectId,selectZindex);
                  e.stopPropagation();   e.cancelbuble = true;
                    // SELECT onchange 事件
                    $('#' selectId '> select').change();
            })
            .hover(
                 function(){
                       $('#' selectId ' > div > ul > li').removeClass("over");
                        $(这个) .addClass("over").addClass("selectedli");
                       selectIndex = $('#' selectId ' > div > ul > li').index(this);
                   },
                    function(){
                       $(this).removeClass("over");
                    }
            );
            //结束
        };
        e.stopPropagation();
    })
    .bind("mousewheel",function(){
        //以后也许支持滚轮    
        /*$('#' selectId ' > div > ul > li' ).hover(
            function(){
             return false;
            },
            function(){
                return false;
            }
        );*/
    } )
    .bind("dblclick", function(){
        __clearSelectMenu();
        返回 false;
    })
    .bind("keydown",function(e){
        //var 热键 = e.keyCode;
        $(this).bind('keydown',function(e){
            if (e.keyCode == 40 || e.keyCode == 38 || e.keyCode == 35 || e.keyCode == 36){
               返回 false;
            }
        });
        switch(e.keyCode){ //设置为true可给定case范围
            case 9:
                return true;
                break;
            case 13:
                //enter
                //$('#value2').append('按回车收到的值：' selectIndex '  
');
                __clearSelectMenu();
                break;
            case 27:
                //esc
                __clearSelectMenu();
                break;
            case 33:
                $('#' selectId ' > div > ul > li').removeClass("over");
                selectIndex = 0;
                __keyDown(selectId,selectIndex);
                break;
            case 34:
                $('#' selectId ' > div > ul > li').removeClass("over");
                selectIndex = ($('#' selectId ' > select > option').length - 1);
                __keyDown(selectId,selectIndex);
                break;
            case 35:
                $('#' selectId ' > div > ul > li').removeClass("over");
                selectIndex = ($('#' selectId ' > select > option').length - 1);
                __keyDown(selectId,selectIndex);
                break;
            case 36:
                $('#' selectId ' > div > ul > li').removeClass("over");
                selectIndex = 0;
                __keyDown(selectId,selectIndex);
                break;
            case 38:
                //up
                //$('#value2').append('原始值：' selectIndex '  
');
                $('#' selectId ' > div > ul > li').removeClass("over");
                if (selectIndex == 0){
                    selectIndex = 0;
                }else{
                    selectIndex--;
                }；
                //$('#value2').append('向上改变的aa值：' selectIndex '  ');
                __keyDown(selectId,selectIndex);
                休息；
            case 40:
                //down
                //$('#value2').append('传递过来的：' selectIndex '  ');
                $('#' selectId ' > div > ul > li').removeClass("over");
                if (selectIndex == ($('#' selectId ' > 选择 > 选项').length - 1)){
                    selectIndex = $('#' selectId ' > 选择 > 选项' ).长度 - 1;
                }否则{
                    selectIndex ;
                }；
                //$('#value2').append('进一步改变的aa值：'选择索引'  ');
                __keyDown(selectId,selectIndex);
                休息；
            /*case ((热键 > 47 && 热键 64 && 热键 96 && 热键                 / /首字幕查询接口
                //character = String.fromCharCode(hotkeys).toLowerCase();
                返回 false；
                break;*/
            默认：
                返回 false；
                休息；
        }；
    })
    .bind("blur",function(){
        __clearSelectMenu(selectId,selectZindex);
        返回 false;
    });
    // 禁止选择
    $('.dropselectbox').bind("selectstart",function(){
            return false;
    });
}；
function __clearSelectMenu(selectId,selectZindex){
    //$('#value2').append('移除焦点：' selectIndex '  
');
    $('.dropselectbox > ul').empty().hide();
    $('.dropselectbox > h4').removeClass("over").removeClass("current");
    $('.dropselectbox > span').removeClass("over");
    $('#' selectId).removeClass('overclass');
}
function __setSelectValue(sID){
    $('#' sID ' > div > ul').empty();
    $.each($('#' sID ' > 选择 > 选项'), function(i){
        $('#' sID ' > div > ul').append("

" $(this).text() "

");
    });
    $('#' sID ' > div > h4').empty().append($('#' sID ' > 选择选项:selected').text());
    $('#' sID ' > div > ul > li').eq($('#' sID '> select')[0].selectedIndex).addClass("over"). addClass("selectedli");
}
function __keyDown(sID,selectIndex){
    $('#' sID '> select')[0].selectedIndex = selectIndex;
    $('#' sID ' > div > ul > li:eq(' selectIndex ')').toggleClass("over");
    $('#' sID ' > div > h4').empty().append($('#' sID ' > 选择选项:selected').text());
    //SELECT onchange 事件
    $('#' sID '> select').change();
}
/* 自动调用 */
$(document).ready(function(){
    var s = new Array();
    var t = document.getElementsByTagName('select ');
    var j = 0;
    for(var i=0;i        if(t[i].className=='commonselect'){
           s[j] = t[i];
            j ;
        }
    }
    if(j==0)return;
    var k = m = null; (var i=0;i        k = s[i].parentNode;
        m = createDiv(k, i)
        //s[i].replaceNode; (m);
        k.replaceChild(m,s[i])
        m.appendChild(s[i]);
        $('#selectbox' i).sSelect(); }    
    function createDiv(p, i){
        var div = document.createElement('div');
        div.className = 'dropdown';
        div.id = 'selectbox' i;
       div.innerHTML = ' ';
        p.appendChild(div);
        return div;    
    }
})


HTML应用

复制代码如下代码：

    

Jquery Select(单选) 模拟插件 V1.3.4

    

    类型：
    
                
                类型男
                类型女
        
    性别:
    
                性别：
                男
                女
        
    
    
    

可以参考这篇文档http://www.jb51.net/jiaoben/21397.html