element-plus
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A Component Library for Vue 3
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{"version":3,"file":"menu.mjs","sources":["../../../../../../packages/components/cascader-panel/src/menu.vue"],"sourcesContent":["<template>\n <el-scrollbar\n :key=\"menuId\"\n tag=\"ul\"\n role=\"menu\"\n :class=\"ns.b()\"\n :wrap-class=\"ns.e('wrap')\"\n :view-class=\"[ns.e('list'), ns.is('empty', isEmpty)]\"\n @mousemove=\"handleMouseMove\"\n @mouseleave=\"clearHoverZone\"\n >\n <el-cascader-node\n v-for=\"node in nodes\"\n :key=\"node.uid\"\n :node=\"node\"\n :menu-id=\"menuId\"\n @expand=\"handleExpand\"\n />\n <div v-if=\"isLoading\" :class=\"ns.e('empty-text')\">\n <el-icon size=\"14\" :class=\"ns.is('loading')\">\n <loading />\n </el-icon>\n {{ t('el.cascader.loading') }}\n </div>\n <div v-else-if=\"isEmpty\" :class=\"ns.e('empty-text')\">\n <slot name=\"empty\">{{ t('el.cascader.noData') }}</slot>\n </div>\n <!-- eslint-disable-next-line vue/html-self-closing -->\n <svg\n v-else-if=\"panel?.isHoverMenu\"\n ref=\"hoverZone\"\n :class=\"ns.e('hover-zone')\"\n ></svg>\n </el-scrollbar>\n</template>\n\n<script lang=\"ts\" setup>\nimport { computed, getCurrentInstance, inject, ref } from 'vue'\nimport ElScrollbar from '@element-plus/components/scrollbar'\nimport { useId, useLocale, useNamespace } from '@element-plus/hooks'\nimport { Loading } from '@element-plus/icons-vue'\nimport ElIcon from '@element-plus/components/icon'\nimport ElCascaderNode from './node.vue'\nimport { CASCADER_PANEL_INJECTION_KEY } from './types'\n\nimport type { CascaderNode } from './types'\nimport type { PropType } from 'vue'\n\ndefineOptions({\n name: 'ElCascaderMenu',\n})\n\nconst props = defineProps({\n nodes: {\n type: Array as PropType<CascaderNode[]>,\n required: true,\n },\n index: {\n type: Number,\n required: true,\n },\n})\n\nconst instance = getCurrentInstance()!\nconst ns = useNamespace('cascader-menu')\n\nconst { t } = useLocale()\nconst id = useId()\nlet activeNode: HTMLElement\nlet hoverTimer: number | undefined\n\nconst panel = inject(CASCADER_PANEL_INJECTION_KEY)!\n\nconst hoverZone = ref<SVGSVGElement>()\n\nconst isEmpty = computed(() => !props.nodes.length)\nconst isLoading = computed(() => !panel.initialLoaded)\nconst menuId = computed(() => `${id.value}-${props.index}`)\n\nconst handleExpand = (e: MouseEvent) => {\n activeNode = e.target as HTMLElement\n}\n\nconst handleMouseMove = (e: MouseEvent) => {\n if (!panel.isHoverMenu || !activeNode || !hoverZone.value) return\n\n if (activeNode.contains(e.target as HTMLElement)) {\n clearHoverTimer()\n\n const el = instance.vnode.el as HTMLElement\n const { left } = el.getBoundingClientRect()\n const { offsetWidth, offsetHeight } = el\n const startX = e.clientX - left\n const top = activeNode.offsetTop\n const bottom = top + activeNode.offsetHeight\n const scrollTop = el.querySelector(`.${ns.e('wrap')}`)?.scrollTop || 0\n\n hoverZone.value.innerHTML = `\n <path style=\"pointer-events: auto;\" fill=\"transparent\" d=\"M${startX} ${top} L${offsetWidth} ${scrollTop} V${top} Z\" />\n <path style=\"pointer-events: auto;\" fill=\"transparent\" d=\"M${startX} ${bottom} L${offsetWidth} ${offsetHeight + scrollTop} V${bottom} Z\" />\n `\n } else if (!hoverTimer) {\n hoverTimer = window.setTimeout(clearHoverZone, panel.config.hoverThreshold)\n }\n}\n\nconst clearHoverTimer = () => {\n if (!hoverTimer) return\n clearTimeout(hoverTimer)\n hoverTimer = undefined\n}\n\nconst clearHoverZone = () => {\n if (!hoverZone.value) return\n hoverZone.value.innerHTML = ''\n 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