自定义指令-配置传参以及修饰符 

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        .card{
            width: 200px;
            background: #ccc;
            padding: 10px;
            margin: 5px;
        }
    </style>
</head>
<body>
<div id="app">
    <div v-pin:true.bottom.right="card1.pinned" class="card">
        <button @click="card1.pinned = !card1.pinned">点我啊~</button>
        this is my first card!
        this is my first card!
        this is my first card!
        this is my first card!
        this is my first card!
    </div>
    <div v-pin.top.right="card2.pinned" class="card">
        <a @click="card2.pinned = !card2.pinned" href="#">please touch me</a>
        this is my second card!
        this is my second card!
        this is my second card!
        this is my second card!
        this is my second card!
    </div>
    <div>
        this is my test code@!
        <br>
        this is my test code@!
        <br>
        this is my test code@!
        <br>
        this is my test code@!
        <br>
        this is my test code@!
        <br>
        this is my test code@!
        <br>
        this is my test code@!
        <br>
        this is my test code@!
        <br>
        this is my test code@!
        <br>
        this is my test code@!
        <br>
        this is my test code@!
        <br>
        this is my test code@!
        <br>
        this is my test code@!
        <br>
        this is my test code@!
        <br>
        this is my test code@!
        <br>
        this is my test code@!
        <br>
        this is my test code@!
        <br>
        this is my test code@!
        <br>
        this is my test code@!
        <br>
        this is my test code@!
        <br>
        this is my test code@!
        <br>
        this is my test code@!
        <br>
        this is my test code@!
        <br>
        this is my test code@!
        <br>
        this is my test code@!
        <br>
        this is my test code@!
        <br>
        this is my test code@!
        <br>
        this is my test code@!
        <br>
        this is my test code@!
        <br>
        this is my test code@!
        <br>
        this is my test code@!
        <br>
        this is my test code@!
        <br>
        this is my test code@!
        <br>
    </div>
</div>

<script src="../lib/vue.js"></script>
<script src="js/main.js"></script>
</body>
</html>
Vue.directive("pin", function (el, binding) {
    var pinned = binding.value;
    var position = binding.modifiers;             //获取属性的函数
    var warning = binding.arg;                   //获取属性的函数
    // console.log("position:",position);
    if (pinned) {
        el.style.position = "fixed";
        for (var key in position) {
            if (position[key]) {
                el.style[key] = "20px"
            }
        }if(warning === "true"){
            el.style.background = "red"
        }
    } else {
        el.style.position = "static"
    }
});

var app = new Vue({
    el: "#app",
    data: {
        card1: {
            pinned: false
        },
        card2: {
            pinned: false
        }
    }
});

 

posted @ 2018-01-30 19:35  一石数字欠我15w!!!  阅读(186)  评论(0)  编辑  收藏  举报