<template>
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<div class="history-selector">
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<label class="select-label">选择历史数据：</label>
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<div class="custom-select">
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<div class="select-value" @click="toggleDropdown">
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<span v-if="!selectedItem">-- 选择历史数据 --</span>
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<span v-else>{{ selectedItem.name }} - {{ selectedItem.goodsId }}</span>
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<span class="select-arrow" :class="{ 'open': isDropdownOpen }"></span>
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</div>
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<ul class="select-dropdown" v-if="isDropdownOpen" @click.stop>
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<li
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class="select-option"
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:class="{ 'selected': !selectedItem }"
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@click="selectOption(null)"
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>
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-- 选择历史数据 --
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</li>
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<li
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v-for="(item, index) in historyItems"
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:key="index"
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class="select-option"
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:class="{ 'selected': selectedItem && selectedItem.goodsId === item.goodsId && selectedItem.bid === item.bid }"
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@click="selectOption(item)"
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>
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{{ item.name }} - {{ item.goodsId }}
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</li>
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</ul>
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</div>
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</div>
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</template>
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<script setup lang="ts">
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import {ref, watch} from 'vue';
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import {BidFormData} from "/src-com";
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interface Props {
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historyItems: BidFormData[];
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modelValue: BidFormData | null;
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}
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const props = defineProps<Props>();
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const emit = defineEmits([
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'update:modelValue',
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'selected'
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]);
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const isDropdownOpen = ref(false);
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const selectedItem = ref<BidFormData | null>(props.modelValue);
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// 监听外部modelValue变化
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watch(() => props.modelValue, (newValue) => {
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selectedItem.value = newValue;
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});
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// 切换下拉菜单
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const toggleDropdown = () => {
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isDropdownOpen.value = !isDropdownOpen.value;
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};
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// 选择选项
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const selectOption = (item: BidFormData | null) => {
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selectedItem.value = item;
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emit('update:modelValue', item);
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emit('selected', item);
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isDropdownOpen.value = false;
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};
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// 点击外部关闭下拉菜单
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const handleClickOutside = (event: MouseEvent) => {
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const selectElement = document.querySelector('.custom-select');
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if (selectElement && !selectElement.contains(event.target as Node)) {
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isDropdownOpen.value = false;
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}
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};
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// 添加点击外部事件监听
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document.addEventListener('click', handleClickOutside);
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// 组件卸载时移除事件监听
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defineExpose({
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onUnmounted: () => {
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document.removeEventListener('click', handleClickOutside);
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}
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});
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</script>
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<style scoped>
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.history-selector {
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margin-bottom: 20px;
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}
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.select-label {
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display: block;
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margin-bottom: 8px;
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font-weight: 500;
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}
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.custom-select {
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position: relative;
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width: 100%;
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max-width: 400px;
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}
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.select-value {
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display: flex;
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justify-content: space-between;
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align-items: center;
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padding: 8px 12px;
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background-color: #fff;
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border: 1px solid #ddd;
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border-radius: 4px;
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cursor: pointer;
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transition: border-color 0.3s;
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}
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.select-value:hover {
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border-color: #666;
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}
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.select-arrow {
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display: inline-block;
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width: 0;
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height: 0;
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border-left: 5px solid transparent;
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border-right: 5px solid transparent;
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border-top: 5px solid #666;
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transition: transform 0.3s;
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}
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.select-arrow.open {
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transform: rotate(180deg);
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}
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.select-dropdown {
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position: absolute;
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top: 100%;
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left: 0;
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right: 0;
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background-color: #fff;
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border: 1px solid #ddd;
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border-top: none;
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border-radius: 0 0 4px 4px;
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list-style: none;
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margin: 0;
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padding: 0;
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max-height: 200px;
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overflow-y: auto;
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box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
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z-index: 10;
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}
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.select-option {
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padding: 8px 12px;
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cursor: pointer;
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transition: background-color 0.2s;
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}
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.select-option:hover {
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background-color: #f0f0f0;
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}
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.select-option.selected {
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background-color: #e6f7ff;
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color: #1890ff;
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}
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</style>
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