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<template>
<div
class="d2-contextmenu"
v-show="flag"
:style="style">
<slot/>
</div>
</template>
<script>
export default {
name: 'd2-contextmenu',
props: {
visible: {
type: Boolean,
default: false
},
x: {
type: Number,
default: 0
},
y: {
type: Number,
default: 0
}
},
computed: {
flag: {
get () {
if (this.visible) {
// 注册全局监听事件 [ 目前只考虑鼠标解除触发 ]
window.addEventListener('mousedown', this.watchContextmenu)
}
return this.visible
},
set (newVal) {
this.$emit('update:visible', newVal)
}
},
style () {
return {
left: this.x + 'px',
top: this.y + 'px',
display: this.visible ? 'block' : 'none '
}
}
},
methods: {
watchContextmenu (event) {
if (!this.$el.contains(event.target) || event.button !== 0) this.flag = false
window.removeEventListener('mousedown', this.watchContextmenu)
}
},
mounted () {
// 将菜单放置到body下
document.querySelector('body').appendChild(this.$el)
}
}
</script>
<style>
.d2-contextmenu {
position: absolute;
padding: 5px 0;
z-index: 2018;
background: #FFF;
border: 1px solid #cfd7e5;
border-radius: 4px;
box-shadow: 0 2px 12px 0 rgba(0,0,0,.1);
}
</style>