基于Vue封装分页组件

使用Vue做双向绑定的时候，可能经常会用到分页功能

接下来我们来封装一个分页组件

先定义样式文件 pagination.css

ul, li {
margin: 0px;
padding: 0px;
}

.page-bar {
-webkit-touch-callout: none;
-webkit-user-select: none;
-khtml-user-select: none;
-moz-user-select: none;
-ms-user-select: none;
user-select: none;
}

.page-button-disabled {
color:#ddd !important;
}

.page-bar li {
list-style: none;
display: inline-block;
}

.page-bar li:first-child > a {
margin-left: 0px;
}

.page-bar a {
border: 1px solid #ddd;
text-decoration: none;
position: relative;
float: left;
padding: 6px 12px;
margin-left: -1px;
line-height: 1.42857143;
color: #337ab7;
cursor: pointer;
}

.page-bar a:hover {
background-color: #eee;
}

.page-bar .active a {
color: #fff;
cursor: default;
background-color: #337ab7;
border-color: #337ab7;
}

.page-bar i {
font-style: normal;
color: #d44950;
margin: 0px 4px;
font-size: 12px;
}

ul, li {
    margin: 0px;
    padding: 0px;
}

.page-bar {
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -khtml-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

.page-button-disabled {
    color:#ddd !important;
}

.page-bar li {
    list-style: none;
    display: inline-block;
}

.page-bar li:first-child > a {
    margin-left: 0px;
}

.page-bar a {
    border: 1px solid #ddd;
    text-decoration: none;
    position: relative;
    float: left;
    padding: 6px 12px;
    margin-left: -1px;
    line-height: 1.42857143;
    color: #337ab7;
    cursor: pointer;
}

.page-bar a:hover {
    background-color: #eee;
}

.page-bar .active a {
    color: #fff;
    cursor: default;
    background-color: #337ab7;
    border-color: #337ab7;
}

.page-bar i {
    font-style: normal;
    color: #d44950;
    margin: 0px 4px;
    font-size: 12px;
}

js文件 pagination.js

(function (vue) {
// html模板信息
var template = '<div class="page-bar"> \
<ul> \
<li><a class="{{ setButtonClass(0) }}" v-on:click="prvePage(cur)">上一页</a></li> \
<li v-for="index in indexs" v-bind:class="{ active: cur == index }"> \
<a v-on:click="btnClick(index)">{{ index < 1 ? "..." : index }}</a> \
</li> \
<li><a class="{{ setButtonClass(1) }}" v-on:click="nextPage(cur)">下一页</a></li> \
</ul> \
</div>'

var pagination = vue.extend({
template: template,
props: ['cur', 'all'],
computed: {
indexs: function () {
var left = 1
var right = this.all
var ar = []
if (this.all >= 11) {
if (this.cur > 5 && this.cur < this.all - 4) {
left = this.cur - 5
right = this.cur + 4
} else {
if (this.cur <= 5) {
left = 1
right = 10
} else {
right = this.all
left = this.all - 9
}
}
}
while (left <= right) {
ar.push(left)
left++
}
if (ar[0] > 1) {
ar[0] = 1;
ar[1] = -1;
}
if (ar[ar.length - 1] < this.all) {
ar[ar.length - 1] = this.all;
ar[ar.length - 2] = 0;
}
return ar
}
},
methods: {
// 页码点击事件
btnClick: function (data) {
if (data < 1) return;
if (data != this.cur) {
this.cur = data
this.$dispatch('btn-click', data)
}
},
// 下一页
nextPage: function (data) {
if (this.cur >= this.all) return;
this.btnClick(this.cur + 1);
},
// 上一页
prvePage: function (data) {
if (this.cur <= 1) return;
this.btnClick(this.cur - 1);
},
// 设置按钮禁用样式
setButtonClass: function (isNextButton) {
if (isNextButton) {
return this.cur >= this.all ? "page-button-disabled" : ""
}
else {
return this.cur <= 1 ? "page-button-disabled" : ""
}
}
}
})

vue.Pagination = pagination

})(Vue)

(function (vue) {
    // html模板信息
    var template = '<div class="page-bar"> \
                     <ul> \
                       <li><a class="{{ setButtonClass(0) }}" v-on:click="prvePage(cur)">上一页</a></li> \
                       <li v-for="index in indexs"  v-bind:class="{ active: cur == index }"> \
                          <a v-on:click="btnClick(index)">{{ index < 1 ? "..." : index }}</a> \
                       </li> \
                       <li><a class="{{ setButtonClass(1) }}" v-on:click="nextPage(cur)">下一页</a></li> \
                     </ul> \
                   </div>'

    var pagination = vue.extend({
        template: template,
        props: ['cur', 'all'],
        computed: {
            indexs: function () {
                var left = 1
                var right = this.all
                var ar = []
                if (this.all >= 11) {
                    if (this.cur > 5 && this.cur < this.all - 4) {
                        left = this.cur - 5
                        right = this.cur + 4
                    } else {
                        if (this.cur <= 5) {
                            left = 1
                            right = 10
                        } else {
                            right = this.all
                            left = this.all - 9
                        }
                    }
                }
                while (left <= right) {
                    ar.push(left)
                    left++
                }
                if (ar[0] > 1) {
                    ar[0] = 1;
                    ar[1] = -1;
                }
                if (ar[ar.length - 1] < this.all) {
                    ar[ar.length - 1] = this.all;
                    ar[ar.length - 2] = 0;
                }
                return ar
            }
        },
        methods: {
            // 页码点击事件
            btnClick: function (data) {
                if (data < 1) return;
                if (data != this.cur) {
                    this.cur = data
                    this.$dispatch('btn-click', data)
                }
            },
            // 下一页
            nextPage: function (data) {
                if (this.cur >= this.all) return;
                this.btnClick(this.cur + 1);
            },
            // 上一页
            prvePage: function (data) {
                if (this.cur <= 1) return;
                this.btnClick(this.cur - 1);
            },
            // 设置按钮禁用样式
            setButtonClass: function (isNextButton) {
                if (isNextButton) {
                    return this.cur >= this.all ? "page-button-disabled" : ""
                }
                else {
                    return this.cur <= 1 ? "page-button-disabled" : ""
                }
            }
        }
    })

    vue.Pagination = pagination

})(Vue)

pagination分页组件就封装好了，需要使用的时候，引入以上两个文件即可

接下来我们测试下效果

<!DOCTYPE html>
<html>
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1" />
    <title></title>
    <script src="vue.js"></script>
    <link href="pagination.css" rel="stylesheet" />
    <script src="pagination.js"></script>
</head>
<body>
    <div id="app">
        <vue-pagination :cur.sync="cur" :all.sync="all" v-on:btn-click="listen"></vue-pagination>
        <p>{{msg}}</p>
    </div>
    <script type="text/javascript">
        var app = new Vue({
            el: '#app',
            data: {
                // 当前页码
                cur: 1,
                // 总页数
                all: 100,
                msg: ''
            },
            components: {
                // 引用组件
                'vue-pagination': Vue.Pagination
            },
            methods: {
                listen: function (data) {
                    // 翻页会触发此事件
                    this.msg = '当前页码：' + data
                }
            }
        })
    </script>
</body>
</html>

最终效果

demo下载

好文要顶 

页码切换事件在listen中处理即可