购物车删除按钮

HTML

    
    
    
    



    

        

            
 全选
            
商品
            
单价
            
数量
            
小计
            
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Casio/卡西欧 EX-TR350
            
5999.88
            

                
                
                +
            
5999.88
            
删除
        
        

            

            
Canon/佳能 PowerShot SX50 HS
            
3888.50
            
+
            
3888.50
            
删除
        
        

            

            
Sony/索尼 DSC-WX300
            
1428.50
            
+
            
1428.50
            
删除
        
        

            

            
Fujifilm/富士 instax mini 25
            
640.60
            
+
            
640.60
            
删除
        
    



     全选
    删除
    
结 算
    
合计：￥0.00
    
已选商品
        0件
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CSS

* {
    margin: 0;
    padding: 0;
}
a {
    color: #666;
    text-decoration: none;
}
body {
    padding: 20px;
    color: #666;
}
.fl{
    float: left;
}
.fr {
    float: right;
}
table {
    border-collapse: collapse;
    border-spacing: 0;
    border: 0;
    text-align: center;
    width: 937px;
}
th, td {
    border: 1px solid #CADEFF;
}
th {
    background: #e2f2ff;
    border-top: 3px solid #a7cbff;
    height: 30px;
}
td {
    padding: 10px;
    color: #444;
}
tbody tr:hover {
    background: RGB(238,246,255);
}
.checkbox {
    width: 60px;
}
.goods {
    width: 300px;
}
.goods span {
    width: 180px;
    margin-top: 20px;
    text-align: left;
    float: left;
}
.price {
    width: 130px;
}
.count {
    width: 90px;
}
.count .add, .count input, .count .reduce {
    float: left;
    margin-right: -1px;
    position: relative;
    z-index: 0;
}
.count .add, .count .reduce {
    height: 23px;
    width: 17px;
    border: 1px solid #e5e5e5;
    background: #f0f0f0;
    text-align: center;
    line-height: 23px;
    color: #444;
}
.count .add:hover, .count .reduce:hover {
    color: #f50;
    z-index: 3;
    border-color: #f60;
    cursor: pointer;
}
.count input {
    width: 50px;
    height: 15px;
    line-height: 15px;
    border: 1px solid #aaa;
    color: #343434;
    text-align: center;
    padding: 4px 0;
    background-color: #fff;
    z-index: 2;
}
.subtotal {
    width: 150px;
    color: red;
    font-weight: bold;
}
.operation {
    width: 80px;
}
.operation span:hover, a:hover {
    cursor: pointer;
    color: red;
    text-decoration: underline;
}
img {
    width: 100px;
    height: 80px;
    /*border: 1px solid #ccc;*/
    margin-right: 10px;
    float: left;
}

.foot {
    width: 935px;
    margin-top: 10px;
    color: #666;
    height: 48px;
    border: 1px solid #c8c8c8;
    background-color: #eaeaea;
    background-image:linear-gradient(RGB(241,241,241),RGB(226,226,226));
    position: relative;
    z-index: 8;
}
.foot div, .foot a {
    line-height: 48px;
    height: 48px;
}
.foot .select-all {
    width: 100px;
    height: 48px;
    line-height: 48px;
    padding-left: 5px;
    color: #666;
}
.foot .closing {
    border-left: 1px solid #c8c8c8;
    width: 100px;
    text-align: center;
    color: #000;
    font-weight: bold;
    background: RGB(238,238,238);
    cursor: pointer;
}
.foot .total{
    margin: 0 20px;
    cursor: pointer;
}
.foot  #priceTotal, .foot #selectedTotal {
    color: red;
    font-family: "Microsoft Yahei";
    font-weight: bold;
}
.foot .selected {
    cursor: pointer;
}
.foot .selected .arrow {
    position: relative;
    top:-3px;
    margin-left: 3px;
}
.foot .selected .down {
    position: relative;
    top:3px;
    display: none;
}
 .show .selected .down {
    display: inline;
}
 .show .selected .up {
    display: none;
}
.foot .selected:hover .arrow {
    color: red;
}
.foot .selected-view {
    width: 935px;
    border: 1px solid #c8c8c8;
    position: absolute;
    height: auto;
    background: #ffffff;
    z-index: 9;
    bottom: 48px;
    left: -1px;
    display:none;
}
.show .selected-view {
    display: block;
}
.foot .selected-view div{
    height: auto;
}
.foot .selected-view .arrow {
    font-size: 16px;
    line-height: 100%;
    color:#c8c8c8;
    position: absolute;
    right: 330px;
    bottom: -9px;
}
.foot .selected-view .arrow span {
    color: #ffffff;
    position: absolute;
    left: 0px;
    bottom: 1px;
}
#selectedViewList {
    padding: 20px;
    margin-bottom: -20px;
}
#selectedViewList div{
    display: inline-block;
    position: relative;
    width: 100px;
    height: 80px;
    border: 1px solid #ccc;
    margin: 10px;
}
#selectedViewList div span {
    display: none;
    color: #ffffff;
    font-size: 12px;
    position: absolute;
    top: 0px;
    right: 0px;
    width: 60px;
    height: 18px;
    line-height: 18px;
    text-align: center;
    background: RGBA(0,0,0,.5);
    cursor: pointer;
}
#selectedViewList div:hover span {
    display: block;
}

script.js

window.onload = function () {
    if (!document.getElementsByClassName) {
        document.getElementsByClassName = function (cls) {
            var ret = [];
            var els = document.getElementsByTagName('*');
            for (var i = 0, len = els.length; i < len; i++) {
                if (els[i].className === cls
                    || els[i].className.indexOf(cls + ' ') >= 0
                    || els[i].className.indexOf(' ' + cls + ' ') >= 0
                    || els[i].className.indexOf(' ' + cls) >= 0) {
                    ret.push(els[i]);
                }
            }
            return ret;
        }
    }

    var cartTable = document.getElementById('cartTable');
    var tr = cartTable.children[1].rows;
    var checkInputs = document.getElementsByClassName('check');
    var checkAllInputs = document.getElementsByClassName('check-all');
    var selectedTotal = document.getElementById('selectedTotal');
    var priceTotal = document.getElementById('priceTotal');
    var selected = document.getElementById('selected');
    var foot = document.getElementById('foot');
    var selectedViewList = document.getElementById('selectedViewList');
    var deleteAll = document.getElementById('deleteAll');

    //计算
    function getTotal() {
        var seleted = 0;
        var price = 0;
        var HTMLstr = '';
        for (var i = 0, len = tr.length; i < len; i++) {
            if (tr[i].getElementsByTagName('input')[0].checked) {
                tr[i].className = 'on';
                seleted += parseInt(tr[i].getElementsByTagName('input')[1].value);
                price += parseFloat(tr[i].cells[4].innerHTML);
                HTMLstr += '
取消选择
'
            }
            else {
                tr[i].className = '';
            }
        }

        selectedTotal.innerHTML = seleted;
        priceTotal.innerHTML = price.toFixed(2);
        selectedViewList.innerHTML = HTMLstr;

        if (seleted == 0) {
            foot.className = 'foot';
        }
    }

    //小计
    function getSubTotal(tr) {
        var tds = tr.cells;
        var price = parseFloat(tds[2].innerHTML);
        var count = parseInt(tr.getElementsByTagName('input')[1].value);
        var SubTotal = parseFloat(price * count);
        tds[4].innerHTML = SubTotal.toFixed(2);
    }

    for (var i = 0 , len = checkInputs.length; i < len; i++) {
        checkInputs[i].onclick = function () {
            if (this.className === 'check-all check') {
                for (var j = 0; j < checkInputs.length; j++) {
                    checkInputs[j].checked = this.checked;
                }
            }
            if (this.checked == false) {
                for (var k = 0; k < checkAllInputs.length; k++) {
                    checkAllInputs[k].checked = false;
                }
            }
            getTotal();
        }
    }

    selected.onclick = function () {
        if (foot.className == 'foot') {
            if (selectedTotal.innerHTML != 0) {
                foot.className = 'foot show';
            }
        }
        else {
            foot.className = 'foot';
        }
    }

    selectedViewList.onclick = function (e) {
        e = e || window.event;
        var el = e.srcElement;
        if (el.className == 'del') {
            var index = el.getAttribute('index');
            var input = tr[index].getElementsByTagName('input')[0];
            input.checked = false;
            input.onclick();
        }
    }

    for (var i = 0; i < tr.length; i++) {
        tr[i].onclick = function (e) {
            e = e || window.event;
            var el = e.srcElement;
            var cls = el.className;
            var input = this.getElementsByTagName('input')[1];
            var val = parseInt(input.value);
            var reduce = this.getElementsByTagName('span')[1];
            switch (cls) {
                case 'add':
                    input.value = val + 1;
                    reduce.innerHTML = '-';
                    getSubTotal(this);
                    break;
                case 'reduce':
                    if (val > 1) {
                        input.value = val - 1;
                    }
                    if (input.value <= 1) {
                        reduce.innerHTML = '';
                    }
                    getSubTotal(this);
                    break;
                case 'delete':
                    var conf = confirm('确定要删除吗？');
                    if (conf) {
                        this.parentNode.removeChild(this);
                    }
                    break
                default :
                    break;
            }
            getTotal();
        }
        tr[i].getElementsByTagName('input')[1].onkeyup = function () {
            var val = parseInt(this.value);
            var tr = this.parentNode.parentNode
            var reduce = tr.getElementsByTagName('span')[1];
            if (isNaN(val) || val < 1) {
                val = 1;
            }
            this.value = val;
            if (val <= 1) {
                reduce.innerHTML = '';
            }
            else {
                reduce.innerHTML = '-';
            }
            getSubTotal(tr);
            getTotal();
        }
    }

    deleteAll.onclick = function () {
        if (selectedTotal.innerHTML != '0') {
            var conf = confirm('确定删除吗？');
            if (conf) {
                for (var i = 0; i < tr.length; i++) {
                    var input = tr[i].getElementsByTagName('input')[0];
                    if (input.checked) {
                        tr[i].parentNode.removeChild(tr[i]);
                        i--;
                    }
                }
            }
        }
    }

    checkAllInputs[0].checked = true;
    checkAllInputs[0].onclick();
}