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前端开发 外卖平台购物车效果

2018-08-13 19:57:06 分类：教程 阅读(54) 评论(0)

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html 代码

<!DOCTYPE html>
<head>
    <meta charset=”utf-8″>
    <meta name=”viewport” content=”width=device-width, initial-scale=1.0″>
    <title>shopping</title>
    <link href=”http://meyerweb.com/eric/tools/css/reset/reset.css” rel=”stylesheet”>
    <script src=”http://cdn.bootcss.com/jquery/1.8.0/jquery-1.8.0.min.js”></script>
    <script src=”http://cdn.bootcss.com/underscore.js/1.8.3/underscore-min.js”></script>
    <style type=”text/css”>
        .clearfix {
            *zoom: 1;
        }
        .clearfix:before,
        .clearfix:after {
            content: ” “;
            display: table;
        }
        .clearfix:after {
            clear: both;
        }
        .left {
            float: left;
        }
        .right {
            float: right;
        }
        .goodslist_c {
            padding: 10px;
        }
        .goodslist_c:after {
            content: ”;
            clear: both;
            display: table;
        }
        .goodslist_l {
            float: left;
        }
        .goods_img {
            float: left;
            display: block;
            width: 80px;
            height: 60px;
            background-color: #ff7800;
            border: 0;
            margin-right: 10px;
        }
        .goods_c {
            float: left;
        }
        .goodslist_r {
            float: right;
            margin-top: 25px;
            position: relative;
        }
        .goods_title,
        .goods_price {
            display: inline-block;
        }
        .goods_title {
            margin-bottom: 10px;
        }
        .price_c {
            color: #ff7800;
        }
        .goods_price {}
        .btn_add {
            display: inline-block;
            border: solid 1px #ff7800;
            width: 15px;
            border-radius: 5px;
            text-align: center;
        }
        .btn_sub {
            display: none;
            border: solid 1px #ff7800;
            width: 15px;
            border-radius: 5px;
            text-align: center;
        }
        .icon_flyer {
            position: absolute;
            right: 0;
            top: 0;
            background-color: #ff7800;
            width: 10px;
            height: 10px;
            border-radius: 10px;
        }
        .icon_shop {
            margin-left: 10px;
            float: left;
            position: relative;
            width: 30px;
            height: 30px;
            margin-top: 10px;
            background: url(http://cdn.attach.w3cfuns.com/notes/pics/201605/03/113653e3xa5bvvxmv2qvmx.png) center center /cover;
        }
        .price {
            float: left;
            line-height: 50px;
            width: 50px;
            margin-left: 10px;
        }
        .icon_cart {
            display: none;
            position: absolute;
            font-size: 12px;
            text-align: center;
            width: 16px;
            height: 16px;
            line-height: 16px;
            right: 0;
            top: 0;
            border-radius: 16px;
            background-color: #ff7800;
        }
        .goodscart {
            position: fixed;
            bottom: 0;
            width: 100%;
            height: 50px;
            background-color: #2a2a2a;
            color: #fff;
        }
        .goodslist_num {
            display: inline-block;
            display: none;
        }
        .btn_submit {
            color: #fff;
            text-align: center;
            vertical-align: middle;
            height: 50px;
            line-height: 50px;
            float: right;
            height: 100%;
            width: 20%;
            background-color: #039e15;
        }
        .modal {
            position: absolute;
            display: none;
            z-index: 20000;
            left: 0%;
            bottom: 50px;
            width: 100%;
            height: 100%;
            background: #000000;
            background-color: rgba(0, 0, 0, 0.5);
            /* IE9、标准浏览器、IE6和部分IE7内核的浏览器(如QQ浏览器)会读懂 */
            filter: Alpha(opacity=50);
            /* 只支持IE6、7、8、9 */
            *zoom: 1;
            /* 激活IE6、7的haslayout属性，让它读懂Alpha */
        }
        .goods_cart {
            display: none;
            position: absolute;
            bottom: 50px;
            width: 100%;
            left: 0;
            z-index: 20001;
            background-color: #fff;
        }
        .cart_row {
            padding: 10px;
            border-top: solid 1px #ff7800;
            border-bottom: solid 1px #ff7800;
            margin-top: 10px;
            margin-bottom: 10px;
        }
        .btn_pay {
            display: block;
            height: 40px;
            line-height: 40px;
            text-align: center;
            color: #fff;
            width: 90%;
            background-color: #ff7800;
            margin: 10px auto;
        }
    </style>
</head>
<body>
    <div class=”goods”>
        <div class=”goodslist”>
            <script type=”text/template” id=”goodslistli”>
<divclass=”goodslist_c”data-id=”{{id}}”data-title=”{{title}}”data-price=”{{price}}”>
<divclass=”goodslist_l clearfix”>
<imgclass=”goods_img”src=”{{src}}”>
<divclass=”goods_c”>
<spanclass=”goods_title”>{{title}}</span>
<divclass=”price_c”>¥<spanclass=”goods_price”>{{price}}</span>.00</div>
</div>
</div>
<divclass=”goodslist_r”>
<spanclass=”btn_sub”>-</span>
<spanclass=”goodslist_num”>0</span>
<spanclass=”btn_add”data-addstyle=”goodslist_add”>+</span>
<iclass=”icon_circle”></i>
<spanclass=”goodslist_price”style=”display:none;”></span>
</div>
</div>
</script>
        </div>
        <div class=”goodscart clearfix”>
            <div class=”icon_shop”>
                <i class=”icon_cart”></i>
            </div>
            <div class=”price”>¥
                <span class=”cartprice”>0</span>.00</div>
            <a class=”btn_submit”>选好了</a>
        </div>
    </div>
    <div class=”modal”></div>
    <div class=”goods_cart”>
        <script type=”text/temple” id=”cartlist”>
<div class=”cart_row clearfix” data-id=”{{id}}” data-title=”{{title}}” dada-price=”{{price}}”>
<div class=”left”>
<span class=”cart_title left”>{{title}}</span>
<span class=”cart_price left”>{{price}}</span>
</div>
<div class=”right”>
<span class=”btn_sub” style=”display:inline-block;”>-</span>
<span class=”goodslist_num” style=”display:inline-block;”>1</span>
<span class=”btn_add” data-addstyle=”cart_add”>+</span>
</div>
</div>
</script>
        <a class=”btn_pay”>
            去结算（共
            <span class=”cart_totalprice”>0</span>元）
        </a>
    </div>
    <script type=”text/javascript”>
        var offset = $(“.icon_shop”).offset();
        _.templateSettings = {
            interpolate: /\{\{(.+?)\}\}/g
        };
        var goods = [{
            id: 1,
            title: ‘草莓’,
            src: ‘http://cdn.attach.w3cfuns.com/notes/pics/201605/03/113653ch0yoh4081w8eopx.jpg’,
            price: ’16’
        }, {
            id: 2,
            title: ‘苹果’,
            src: ‘http://cdn.attach.w3cfuns.com/notes/pics/201605/03/113653yodedydppkxudp9d.jpg’,
            price: ’20’
        }];
        var listTemplate = $.trim($(‘#goodslistli’).html()), s = ”, ns;
        _.each(goods, function (good) {
            ns = listTemplate;
            _.each(good, function (value, key) {
                ns = ns.replace(new RegExp(‘\{\{‘ + key + ‘\}\}’, ‘g’), value || ”);
            });
            s += ns;
        });
        $(‘.goodslist’).append(s);
        var cart = {
            cartNum: $(‘.icon_cart’),
            cartPrice: $(‘.cartprice’),
            btnAdd: $(‘.btn_add’),
            btnSub: $(‘.btn_sub’),
            goodlistBox: $(‘.goodslist_c’),
            totalCount: 0,
            totalPrice: 0,
            addlist: $(‘.goods_cart’),
            templ: $.trim($(‘#cartlist’).html()),
            add: function (id, title, price) {
                var len = this.addlist.find(‘.cart_row’).length;
                var f = 1;
                for (var i = 0; i < len; i++) {
                    if ($(this.addlist.find(‘.cart_row’)[i]).attr(‘data-id’) == id) {
                        f = 0;
                        var tag = this.addlist.find(‘.cart_row’)[i],
                            num = $(tag).find(‘.goodslist_num’).html(),
                            updatenum = parseInt(num);
                        updatenum += 1;
                        $(tag).find(‘.goodslist_num’).html(updatenum);
                        //每件商品的总价
                        var updateprice = parseInt($(tag).find(‘.cart_price’).html()),
                            cartprice = parseInt(price);
                        updateprice += cartprice;
                        $(tag).find(‘.cart_price’).html(updateprice);
                        break;
                    }
                };
                if (!f) return;
                var self = this;
                var updatelist = {
                    id: id,
                    title: title,
                    price: price
                };
                var listtempl = _.template($(‘#cartlist’).html());
                this.addlist.append(listtempl(updatelist));
            },
            minus: function (id, price) {
                var len = this.addlist.find(‘.cart_row’).length;
                var f = 1;
                for (var i = 0; i < len; i++) {
                    if ($(this.addlist.find(‘.cart_row’)[i]).attr(‘data-id’) == id) {
                        f = 0;
                        //减少购物车里每件商品的数量
                        var tag = this.addlist.find(‘.cart_row’)[i],
                            num = $(tag).find(‘.goodslist_num’).html(),
                            updatenum = parseInt(num);
                        updatenum -= 1;
                        //减少购物车里每件商品给的价格
                        var cartprice = $(tag).find(‘.cart_price’).html(),
                            updateprice = parseInt(cartprice);
                        updateprice -= price;
                        //减少购物车里的总价格
                        var cartTotalPrice = $(‘.cart_totalprice’).html(),
                            updateCartTotalPrice = parseInt(cartTotalPrice);
                        updateCartTotalPrice -= price;
                        $(‘.cart_totalprice’).html(updateCartTotalPrice);
                        if (updatenum == 0) {
                            $(tag).remove();
                        } else {
                            $(tag).find(‘.goodslist_num’).html(updatenum);
                            $(tag).find(‘.cart_price’).html(updateprice);
                        }
                        break;
                    }
                };
            },
            unit: function () {
                var self = this;
                //添加到购物车
                self.btnAdd.on(‘click’, function (e) {
                    var target = e.srcElement ? e.srcElement : e.target;
                    //每件商品的数量
                    var num = parseInt($(target).prev().html());
                    var listnum = num += 1;
                    $(target).prev().html(listnum);
                    $(target).prev().css(‘display’, ‘inline-block’).prev().css(‘display’, ‘inline-block’);
                    //每件商品的价格
                    var listprice = parseInt($(target).parent().parent().data(‘price’));
/*var price = listprice*listnum;
$(target).parent().find(‘.goodslist_price’).html(price);*/
                    var addstyle = $(target).data(‘addstyle’);
                    if (addstyle == ‘goodslist_add’) {
                        //购物车总数量
                        var allCount = self.totalCount += 1;
                        self.cartNum.show().html(allCount);
                        //购物车的总价
                        var allPrice = parseInt(self.cartPrice.html());
                        allPrice += listprice;
                        self.cartPrice.html(allPrice);
                        $(‘.cart_totalprice’).html(allPrice);
                        //购物车列表
                        var tagpar = $(target).parent().parent(),
                            id = tagpar.attr(‘data-id’),
                            title = tagpar.attr(‘data-title’),
                            price = tagpar.attr(‘data-price’);
                        self.add(id, title, price);
                    }
                    if (addstyle == ‘cart_add’) {
                        //购物车总数量
                        var allCount = self.totalCount += 1;
                        self.cartNum.show().html(allCount);
                        //购物车的总价
                        var allPrice = self.totalPrice += listprice;
                        self.cartPrice.html(allPrice);
                    }
                });
                //减少商品
                self.btnSub.on(‘click’, function (e) {
                    var target = e.srcElement ? e.srcElement : e.target;
                    //购物车总数量
                    if (self.totalCount > 0) {
                        self.totalCount -= 1;
                        self.cartNum.html(self.totalCount);
                        if (self.totalCount == 0) {
                            self.cartNum.hide();
                        }
                    }
                    //每件商品的数量
                    var num = parseInt($(target).next().html());
                    console.log(num);
                    if (num > 0) {
                        num -= 1;
                        $(target).next().html(num);
                        if (num == 0) {
                            $(this).hide();
                            $(this).next().hide();
                        }
                    };
                    //减少购物车里商品的数量
                    var id = $(target).parent().parent().attr(‘data-id’),
                        price = $(target).parent().parent().attr(‘data-price’);
                    self.minus(id, price);
                    //减少总价格
                    var totalPrice = parseInt($(‘.cartprice’).html());
                    totalPrice -= price;
                    $(‘.cartprice’).html(totalPrice);
                });
            }
        };
        cart.unit();
        function cart_minus(id) {
            var len = $(‘.goods_cart’).find(‘.cart_row’).length();
            for (var i = 0; i <= len; i++) {
                if ($(‘.cart_row’)[i].attr(‘data-id’) == id) {
                    //正在编辑
                }
            }
        };
        $(‘.goodscart’).on(‘click’, function () {
            $(‘.modal’).show();
            $(‘.goods_cart’).show();
        })
        $(‘.modal’).on(‘click’, function () {
            $(‘.goods_cart’).hide();
            $(this).hide();
        })
    </script>
</body>
</html>

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