20160520—JS打分控件

效果预览：

可实现功能：鼠标在滑动条内左右滑动，文本框内分数变动；文本框输入数字，滑动条长度自动改变。

JavaScript代码：

$(function () { scoreFun($("#ScoreBlock")); })
 
function scoreFun(object) {
    var defaults = {
        SocreWidth: 2, //每一分 的宽度
        SocreCount: 100, //a的个数
        ScoreSet: 1, //每个a的分数设置
        ScoreDiv: "ScoreDiv", //a的容器
        ScoreTextID: "txtScore"//接收用的TextBox，根据ID查找
    };
    options = $.extend({},
    defaults);
    var socre_div = $("#" + options.ScoreDiv);
    var socre_txt = $("#" + options.ScoreTextID);
    var socre_set = options.ScoreSet;
    var now_cli;
    var socre_w = options.SocreWidth;
    var len = options.SocreCount;
    socre_div.width(socre_w * len);
    for (var i = 0; i < len; i++) {
        var newSpan = $("<a href='javascript:void(0)' id='SocreA" + i + "'></a>");
        newSpan.css({
            "left": 0,
            "width": socre_w * (i + 1),
            "z-index": len - i
        });
        newSpan.appendTo(socre_div)
    }
    socre_div.find("a").each(function (index, element) {
        //点击滑动条 锁定分数
        //$(this).click(function () {
        //    now_cli = index; //这是锁定分数的关键
        //    show(index, $(this));
        //});
        //鼠标在滑动条上悬浮时 锁定分数
        $(this).mouseenter(function () {
            now_cli = index;//这是锁定分数的关键
            show(index, $(this));
        });
        //鼠标离开时
        $(this).mouseleave(function () {
            if (now_cli >= 0) {
                var scor = socre_set * (parseInt(now_cli) + 1);
                socre_div.find("a").removeClass("clibg");
                socre_div.find("a").eq(now_cli).addClass("clibg");
                var ww = socre_w * (parseInt(now_cli) + 1);
                socre_div.find("a").eq(now_cli).css({
                    "width": ww,
                    "left": "0"
                });
                socre_txt.val(scor);
            } else {
                socre_div.find("a").removeClass("clibg");
                socre_txt.val("");
            }
        })
    });
    //获取分数
    function show(num, obj) {
        var n = parseInt(num) + 1;
        var lefta = num * socre_w;
        var ww = socre_w * n;
        var scor = socre_set * n;
        object.find("a").removeClass("clibg");
        obj.addClass("clibg");
        obj.css({
            "width": ww,
            "left": "0"
        });
        //传值
        socre_txt.val(scor);
    }
};
 
//只允许输入数字的验证
function RepNumber(obj) {
    var reg = /^[\d]+$/g;
    if (!reg.test(obj.value)) {
        var txt = obj.value;
        txt.replace(/[^0-9]+/, function (val) {//匹配第一次非数字字符
            obj.value = val.replace(/\D/g, ""); //将非数字字符替换成""
        })
    }
    //最大值为100
    if (obj.value.length > 2) {
        obj.value = 100;
    }
 
    //文本变动时 滑动条自动变动
    var scoreA = $("#SocreA" + (obj.value - 1));
    $("#ScoreDiv").find("a").removeClass("clibg");
    scoreA.addClass("clibg");
 
}

HTML代码：

<div id="ScoreBlock">
    <div class="score_b">
    </div>
    <div id="ScoreDiv" class="score_div" title="左右滑动鼠标调节分数">
    </div>
    <div class="score_b">
    </div>
    <p>
        您的评分：
　　　　　　<input id="txtScore" type="text" onkeyup="javascript:RepNumber(this)" maxlength="3" />
        分
    </p>
</div>

CSS样式：

/*评分相关*/
#ScoreBlock{ margin:10px; height:20px;}
#ScoreBlock .score_div,#ScoreBlock p{ float:left;}
#ScoreBlock p{ margin:0px; padding-left:20px; line-height:20px; display:inline-block;}
#ScoreBlock p span{ color:#C00; font-size:16px; font-family:Georgia, "Times New Roman", Times, serif;}
#ScoreBlock .score_b { background:url(../Img/ScoreFull.png);width:2px; height:20px;  float:left; position:relative;}
#ScoreBlock .score_div { background:url(../Img/ScoreBorder.png);width:160px; height:20px;  position:relative;}
#ScoreBlock .score_div a{ height:20px; display:block;  position:absolute;left:;}
#ScoreBlock .score_div a:hover{ background:url(../Img/ScoreFull.png);left:;}
#ScoreBlock .score_div a.clibg{ background:url(../Img/ScoreFull.png);left:;}
#txtScore{color:#CC0000;font-family:Georgia;font-size:16px;font-weight:bold;width:50px;}

使用的图片：

（尺寸大小均为20*20 像素）

ScoreBorder.png

  （ 实际图片没有这个黑色的阴影 - -！）

ScoreFull.png