<!--
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* @Descripttion: scContextmenu组件
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* @version: 1.1
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* @Author: sakuya
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* @Date: 2021年7月23日09:25:57
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* @LastEditors: sakuya
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* @LastEditTime: 2022年5月30日20:17:42
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* @other: 代码完全开源，欢迎参考，也欢迎PR
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-->
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<template>
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<transition name="el-zoom-in-top">
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<div v-if="visible" ref="contextmenu" class="sc-contextmenu" :style="{left:left+'px',top:top+'px'}" @contextmenu.prevent="fun">
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<ul class="sc-contextmenu__menu">
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<slot></slot>
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</ul>
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</div>
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</transition>
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</template>
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<script>
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export default {
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provide() {
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return {
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menuClick: this.menuClick
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}
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},
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data() {
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return {
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visible: false,
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top: 0,
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left: 0
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}
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},
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watch: {
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visible(value) {
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if (value) {
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document.body.addEventListener('click', this.cm, true)
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}else{
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document.body.removeEventListener('click', this.cm, true)
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}
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}
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},
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mounted() {
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},
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methods: {
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cm(e){
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let sp = this.$refs.contextmenu
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if(sp&&!sp.contains(e.target)){
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this.closeMenu()
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}
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},
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menuClick(command){
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this.closeMenu()
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this.$emit('command', command)
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},
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openMenu(e) {
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e.preventDefault()
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this.visible = true
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this.left = e.clientX + 1
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this.top = e.clientY + 1
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this.$nextTick(() => {
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var ex = e.clientX + 1
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var ey = e.clientY + 1
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var innerWidth = window.innerWidth
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var innerHeight = window.innerHeight
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var menuHeight = this.$refs.contextmenu.offsetHeight
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var menuWidth = this.$refs.contextmenu.offsetWidth
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//位置修正公示
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//left = (当前点击X + 菜单宽度 > 可视区域宽度 ? 可视区域宽度 - 菜单宽度 : 当前点击X)
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//top = (当前点击Y + 菜单高度 > 可视区域高度 ? 当前点击Y - 菜单高度 : 当前点击Y)
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this.left = ex + menuWidth > innerWidth ? innerWidth - menuWidth : ex
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this.top = ey + menuHeight > innerHeight ? ey - menuHeight : ey
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})
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this.$emit('visibleChange', true)
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},
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closeMenu() {
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this.visible = false;
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this.$emit('visibleChange', false)
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},
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fun(){
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return false;
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}
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}
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}
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</script>
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<style>
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.sc-contextmenu {position: fixed;z-index: 3000;font-size: 12px;}
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.sc-contextmenu__menu {display: inline-block;min-width: 120px;border: 1px solid #e4e7ed;background: #fff;box-shadow: 0 2px 12px 0 rgba(0,0,0,.1);z-index: 3000;list-style-type: none;padding: 10px 0;}
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.sc-contextmenu__menu > hr {margin:5px 0;border: none;height: 1px;font-size: 0px;background-color: #ebeef5;}
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.sc-contextmenu__menu > li {margin:0;cursor: pointer;line-height: 30px;padding: 0 17px 0 10px;color: #606266;display: flex;justify-content: space-between;white-space: nowrap;text-decoration: none;position: relative;}
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.sc-contextmenu__menu > li:hover {background-color: #ecf5ff;color: #66b1ff;}
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.sc-contextmenu__menu > li.disabled {cursor: not-allowed;color: #bbb;background: transparent;}
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.sc-contextmenu__icon {display: inline-block;width: 14px;font-size: 14px;margin-right: 10px;}
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.sc-contextmenu__suffix {margin-left: 40px;color: #999;}
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.sc-contextmenu__menu li ul {position: absolute;top:0px;left:100%;display: none;margin: -11px 0;}
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</style>
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