mirror of https://gitee.com/xiaonuobase/snowy
83 lines
1.7 KiB
Vue
83 lines
1.7 KiB
Vue
<template>
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<div :style="style" v-show="show" @mousedown.stop @contextmenu.prevent>
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<slot></slot>
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</div>
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</template>
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<script setup>
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const props = defineProps({
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target: null,
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show: Boolean
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})
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const x = ref(null)
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const y = ref(null)
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const style = ref({})
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const binded = ref(false)
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const emit = defineEmits(['update:show', 'get-context-menu'])
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// 监听show的变化
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watch(
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() => props.show,
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(newValue) => {
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newValue ? bindHideEvents() : unbindHideEvents()
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}
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)
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watch(
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() => props.target,
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(newValue) => {
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bindEvents()
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}
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)
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// 初始化事件
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const bindEvents = (e) => {
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nextTick(() => {
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if (!props.target || binded.value) return
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props.target.addEventListener('contextmenu', contextMenuHandler)
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binded.value = true
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})
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}
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// 绑定隐藏菜单事件
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const bindHideEvents = () => {
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document.addEventListener('mousedown', clickDocumentHandler)
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document.addEventListener('mousewheel', clickDocumentHandler)
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}
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// 取消绑定隐藏菜单事件
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const unbindHideEvents = () => {
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document.removeEventListener('mousedown', clickDocumentHandler)
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document.removeEventListener('mousewheel', clickDocumentHandler)
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}
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// 鼠标按压事件处理器
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const clickDocumentHandler = () => {
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emit('update:show', false)
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}
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// 右键事件事件处理
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const contextMenuHandler = (e) => {
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x.value = e.clientX
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y.value = e.clientY
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layout()
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emit('update:show', true)
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emit('get-context-menu', e)
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e.preventDefault()
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}
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// 布局
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const layout = () => {
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style.value = {
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left: x.value + 'px',
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top: y.value + 'px',
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display: 'block'
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}
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}
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// 取消绑定事件
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const unbindEvents = () => {
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if (!props.target) return
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props.target.removeEventListener('contextmenu', contextMenuHandler)
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}
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</script>
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