vue添加自定义右键菜单的完整实例
时间：2021-03-07 10:30:26|栏目：vue|点击： 次
一、写原生方法
1.在所编辑的页面，需要添加右键菜单的元素，绑定contextmenu事件，如下：
<li
v-for="item in resourceList"
:key="item.id"
@click="handleClickFolder(item)"
@contextmenu.prevent="openMenu($event,item)"
>
...
</li>
2.在页面编写右键菜单内容:
<ul v-show="visible" :style="{left:left+'px',top:top+'px'}" class="contextmenu">
<!-- <li v-if="rightClickItem.fileType==99" @click="handleClickFolder(rightClickItem)">打开</li>
<li @click="handleDelete(rightClickItem)">删除</li>
<li @click="handleDownloadFile(rightClickItem)" v-if="rightClickItem.fileType!=99">下载</li>
<li @click="handlePreviewFile(rightClickItem)" v-if="rightClickItem.fileType!=99">预览</li>
<li @click="handleUpdate(rightClickItem)">编辑</li> -->
<li>内容</li>
</ul>
3.在data()中定义需要的变量属性
data() {
return {
visible: false,
top: 0,
left: 0
}
}
4.观察visible的变化，来触发关闭右键菜单，调用关闭菜单的方法
watch: {
visible(value) {
if (value) {
document.body.addEventListener('click', this.closeMenu)
} else {
document.body.removeEventListener('click', this.closeMenu)
}
}
}
5.在method中定义打开右键菜单和关闭右键菜单的两个方法
openMenu(e, item) {
this.rightClickItem = item;
var x = e.pageX;
var y = e.pageY;
this.top = y;
this.left = x;
this.visible = true;
},
closeMenu() {
this.visible = false;
}
6.在style中写右键菜单的样式
.contextmenu {
margin: 0;
background: #fff;
z-index: 3000;
position: absolute;
list-style-type: none;
padding: 5px 0;
border-radius: 4px;
font-size: 12px;
font-weight: 400;
color: #333;
box-shadow: 2px 2px 3px 0 rgba(0, 0, 0, 0.3);
}
.contextmenu li {
margin: 0;
padding: 7px 16px;
cursor: pointer;
}
.contextmenu li:hover {
background: #eee;
}
二、使用插件vue-context-menu
安装：
npm install vue-contextmenu --save
引用：
import VueContextMenu from 'vue-contextmenu' Vue.use(VueContextMenu)
使用：
<template>
<div id="app" @contextmenu="showMenu"
style="width: 100px;height: 100px;margin-top: 20px;background: red;">
<vue-context-menu :contextMenuData="contextMenuData"
@savedata="savedata"
@newdata="newdata"></vue-context-menu>
</div>
</template>
<script>
export default {
name: 'app',
data () {
return {
// contextmenu data (菜单数据)
contextMenuData: {
// the contextmenu name(@1.4.1 updated)
menuName: 'demo',
// The coordinates of the display(菜单显示的位置)
axis: {
x: null,
y: null
},
// Menu options (菜单选项)
menulists: [{
fnHandler: 'savedata', // Binding events(绑定事件)
icoName: 'fa fa-home fa-fw', // icon (icon图标 )
btnName: 'Save' // The name of the menu option (菜单名称)
}, {
fnHandler: 'newdata',
icoName: 'fa fa-home fa-fw',
btnName: 'New'
}]
}
}
},
methods: {
showMenu () {
event.preventDefault()
var x = event.clientX
var y = event.clientY
// Get the current location
this.contextMenuData.axis = {
x, y
}
},
savedata () {
alert(1)
},
newdata () {
console.log('newdata!')
}
}
}
</script>
tip:有说不兼容ie的，具体没有测试
