vue2.0的contextmenu右键菜单

1.事情对象

<!DOCTYPE html>
<html>
<head>
    <title></title>
    <meta charset="utf-8">
    <script src="http://unpkg.com/vue/dist/vue.js"></script>

    <script type="text/javascript">
        window.onload = function(){
            var vm = new Vue({
                el:'#box',
                methods:{
                    show:function(event){
                        console.log(event);   //event   这个就是事件对象了
                    }
                }
            });
        }
    </script>
</head>
<body>
   <div id="box">
        <input type="button" value="按钮" @click="show($event)"> 
    </div>
</body>
</html>

通过show($event)把事件对象传到方法里

2.事件冒泡

<!DOCTYPE html>
<html>
<head>
    <title></title>
    <meta charset="utf-8">
    <script src="http://unpkg.com/vue/dist/vue.js"></script>

    <script type="text/javascript">
        window.onload = function(){
            var vm = new Vue({
                el:'#box',
                methods:{
                    show:function(){
                        alert(1);
                    },
                    show1:function(){
                        alert(2);
                    }
                }
            });
        }
    </script>
</head>
<body>
    <div id="box">
        <div @click="show1()">
            <input type="button" value="按钮" @click="show()"> 
        </div>
    </div>
</body>
</html>

点击按钮的话他会，执行show ,show1方法，依次弹出1，2。

怎么来阻止

<1> 利用我们上面讲过的event对象: event.cancelBubble = true; //这种就阻止了

<!DOCTYPE html>
<html>
<head>
    <title></title>
    <meta charset="utf-8">
    <script src="http://unpkg.com/vue/dist/vue.js"></script>

    <script type="text/javascript">
        window.onload = function(){
            var vm = new Vue({
                el:'#box',
                methods:{
                    show:function(event){
                        alert(1);
                        event.cancelBubble = true;
                    },
                    show1:function(){
                        alert(2);
                    }
                }
            });
        }
    </script>
</head>
<body>
   <div id="box">
        <div @click="show1()">
            <input type="button" value="按钮" @click="show($event)"> 
        </div>
    </div>
</body>
</html>

<2>利用vue的方法阻止冒泡：给HTML元素绑定click事件的时候，改为@click.stop="show()"

<!DOCTYPE html>
<html>
<head>
    <title></title>
    <meta charset="utf-8">
    <script src="http://unpkg.com/vue/dist/vue.js"></script>

    <script type="text/javascript">
        window.onload = function(){
            var vm = new Vue({
                el:'#box',
                methods:{
                    show:function(event){
                        alert(1);
                        //event.cancelBubble = true;
                    },
                    show1:function(){
                        alert(2);
                    }
                }
            });
        }
    </script>
</head>
<body>
    <div id="box">
        <div @click="show1()">
            <input type="button" value="按钮" @click.stop="show()"> 
        </div>
    </div>
</body>
</html>

3.默认行为

比如contextmenu右键菜单

<!DOCTYPE html>
<html>
<head>
    <title></title>
    <meta charset="utf-8">
    <!-- // <script src="vue.js"></script> -->
    <script src="http://unpkg.com/vue/dist/vue.js"></script>

    <script type="text/javascript">
        window.onload = function(){
            var vm = new Vue({
                el:'#box',
                methods:{
                    show:function(){
                        alert(1);
                    },
                    show1:function(){
                        alert(2);
                    }
                }
            });
        }
    </script>
</head>
<body>
    <div id="box">
        <input type="button" value="按钮" @contextmenu="show()"> 
        <input type="button" value="按钮1" @contextmenu.prevent="show1()"> 

        <p>//按钮右击点下去会依次出现 弹窗 1， 还有右击的默认菜单</p>
        <p>//按钮1右击只出现 弹窗 2</p>
    </div>
</body>
</html>