461 lines
12 KiB
Vue
461 lines
12 KiB
Vue
<template>
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<!-- <view class="uni-select-dc" :style="{ 'z-index': zindex }"> :style="{ 'z-index': zindex }"-->
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<view class="uni-select-dc">
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<view class="uni-select-dc-select" :class="{ active: active }" @click.stop="handleSelect">
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<!-- 禁用mask -->
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<view class="uni-disabled" v-if="disabled"></view>
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<!-- 清空 -->
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<view class="close-icon close-postion" v-if="realValue.length && !active && !disabled && showClearIcon">
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<text @click.stop="handleRemove(null)"></text>
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</view>
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<!-- 显示框 -->
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<view class="uni-select-multiple" v-show="realValue.length">
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<block v-if="multiple" >
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<view class="uni-select-multiple-item" v-for="(item, index) in changevalue" :key="index">
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{{ item[slabel] }}
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<view class="close-icon" v-if="showValueClear">
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<text @click.stop="handleRemove(index)"></text>
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</view>
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</view>
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</block>
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<!-- 单选时展示内容 -->
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<view v-else class="single-text">
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{{ changevalue.length ? changevalue[0][slabel] : "" }}
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</view>
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</view>
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<!-- 为空时的显示文案 -->
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<view v-if="realValue.length == 0 && showplaceholder">{{ placeholder }}</view>
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<!-- 右边的下拉箭头 -->
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<view :class="{ disabled: disabled, 'uni-select-dc-icon': !downInner, 'uni-select-dc-inner': downInner }">
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<text></text>
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</view>
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</view>
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<!-- 下拉选项 -->
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<scroll-view class="uni-select-dc-options" :scroll-y="true" v-show="active">
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<view class="uni-select-dc-item" :class="{ active: realValue.includes(item[svalue]) }"
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v-for="(item, index) in options" :key="index"
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@click.stop="handleChange(index, item)"
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>
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{{ item[slabel] }}
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</view>
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</scroll-view>
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</view>
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</template>
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<script setup>
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import { onMounted, reactive, ref } from "vue";
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const props = defineProps({
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// 是否显示全部清空按钮
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showClearIcon: {
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type: Boolean,
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default: false,
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},
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// 是否多选
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multiple: {
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type: Boolean,
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default: false,
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},
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// 下拉箭头是否在框内
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downInner: {
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type: Boolean,
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default: true,
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},
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// 是否显示单个删除
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showValueClear: {
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type: Boolean,
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default: true,
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},
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zindex: {
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type: Number,
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default: 999,
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},
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// 禁用选择
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disabled: {
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type: Boolean,
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default: false,
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},
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options: {
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type: Array,
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default() {
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return [];
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},
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},
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value: {
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type: Array,
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default() {
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return [];
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},
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},
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placeholder: {
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type: String,
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default: "请选择",
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},
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showplaceholder: {
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type: Boolean,
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default: true,
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},
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// 默认取text
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slabel: {
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type: String,
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default: "text",
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},
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// 默认取value
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svalue: {
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type: String,
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default: "value",
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},
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});
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const emit = defineEmits(["change"]);
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const active = ref(false); // 组件是否激活，
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let changevalue = reactive([]);
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let realValue = reactive([]);
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onMounted(() => {
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init();
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});
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// 初始化函数
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const init = () => {
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if (props.value.length > 0) {
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props.options.forEach((item) => {
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props.value.forEach((i) => {
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if (item[props.svalue] === i) {
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changevalue.push(item);
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}
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})
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})
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realValue = props.value;
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console.log("props---", changevalue);
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} else {
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changevalue = [];
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realValue = [];
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}
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};
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// 点击展示选项
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const handleSelect = () => {
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if (props.disabled) return;
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active.value = !active.value;
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};
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// 移除数据
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const handleRemove = (index) => {
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if (index === null) {
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realValue = [];
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changevalue = [];
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} else {
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realValue.splice(index, 1);
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changevalue.splice(index, 1);
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}
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emit("change", changevalue, realValue);
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};
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// 点击组件某一项
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const handleChange = (index, item) => {
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console.log("选中了某一项", index, item);
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// 如果是单选框，选中一项后直接关闭
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if (!props.multiple) {
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console.log("关闭下拉框");
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changevalue.length = 0
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realValue.length = 0
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changevalue.push(item);
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realValue.push(item[props.svalue])
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active.value = !active.value;
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} else {
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// 多选操作
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const arrIndex = realValue.indexOf(item[props.svalue]);
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if (arrIndex > -1) {
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// 如果该选项已经选中，当点击后就不选中
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changevalue.splice(arrIndex, 1);
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realValue.splice(arrIndex, 1);
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} else {
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// 否则选中该选项
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changevalue.push(item);
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realValue.push(item[props.svalue]);
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}
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}
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// 触发回调函数
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emit("change", changevalue, realValue);
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};
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</script>
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<style lang="scss" scoped>
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.uni-select-dc {
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position: relative;
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// z-index: 999;
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.uni-select-mask {
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width: 100%;
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height: 100%;
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}
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/* 删除按钮样式*/
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.close-icon {
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height: 100%;
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width: 20px;
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display: flex;
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align-items: center;
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justify-content: center;
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// z-index: 3;
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cursor: pointer;
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text {
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position: relative;
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background: #c0c4cc;
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width: 13px;
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height: 13px;
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border-radius: 50%;
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border: 1px solid #bbb;
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&::before,
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&::after {
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content: "";
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position: absolute;
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left: 20%;
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top: 48%;
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height: 1px;
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width: 60%;
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transform: rotate(45deg);
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background-color: #909399;
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}
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&::after {
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transform: rotate(-45deg);
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}
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}
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}
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//所有情空的定位
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.close-postion {
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position: absolute;
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right: 35px;
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top: 0;
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height: 100%;
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width: 15px;
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}
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/* 多选盒子 */
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.uni-select-multiple {
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display: flex;
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flex-wrap: nowrap;
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overflow: scroll;
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.single-text {
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color: #333;
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}
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.uni-select-multiple-item {
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background: #f4f4f5;
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margin-right: 5px;
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padding: 2px 4px;
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border-radius: 4px;
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color: #909399;
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display: flex;
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flex-shrink: 0;
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}
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}
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// select部分
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.uni-select-dc-select {
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user-select: none;
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position: relative;
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z-index: 3;
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height: 38px;
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padding: 0 30px 0 10px;
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box-sizing: border-box;
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border-radius: 4px;
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border: 1px solid rgb(229, 229, 229);
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display: flex;
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align-items: center;
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font-size: 12px;
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color: #999;
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min-width: 10px;
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.uni-disabled {
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position: absolute;
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left: 0;
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width: 100%;
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height: 100%;
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z-index: 19;
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cursor: no-drop;
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background: rgba(255, 255, 255, 0.5);
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}
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.uni-select-dc-input {
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font-size: 14px;
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color: #999;
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display: block;
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width: 96%;
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overflow: hidden;
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text-overflow: ellipsis;
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white-space: nowrap;
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line-height: 30px;
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box-sizing: border-box;
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&.active {
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color: #333;
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}
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}
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.uni-select-dc-icon {
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cursor: pointer;
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position: absolute;
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right: 0;
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top: 0;
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height: 100%;
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width: 20px;
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display: flex;
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align-items: center;
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justify-content: center;
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border-left: 1px solid rgb(229, 229, 229);
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text {
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display: block;
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width: 0;
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height: 0;
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border-width: 12rpx 12rpx 0;
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border-style: solid;
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border-color: #bbb transparent transparent;
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transition: 0.3s;
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}
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&.disabled {
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cursor: no-drop;
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text {
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width: 20rpx;
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height: 20rpx;
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border: 2px solid #ff0000;
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border-radius: 50%;
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transition: 0.3s;
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position: relative;
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z-index: 999;
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&::after {
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content: "";
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position: absolute;
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top: 50%;
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left: 0;
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width: 100%;
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height: 2px;
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margin-top: -1px;
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background-color: #ff0000;
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transform: rotate(45deg);
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}
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}
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}
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}
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.uni-select-dc-inner {
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cursor: pointer;
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position: absolute;
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right: 0;
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top: 0;
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height: 100%;
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width: 20px;
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display: flex;
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align-items: center;
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justify-content: center;
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text {
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display: block;
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width: 9px;
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height: 9px;
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position: absolute;
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right: 15px;
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top: 8px;
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border: 1px solid #bbb;
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transform: rotate(-45deg);
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border-color: transparent transparent#bbb #bbb;
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transition: 0.3s;
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}
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&.disabled {
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cursor: no-drop;
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text {
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width: 20rpx;
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height: 20rpx;
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border: 2px solid #ff0000;
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border-radius: 50%;
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transition: 0.3s;
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position: relative;
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z-index: 999;
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&::after {
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content: "";
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position: absolute;
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top: 50%;
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left: 0;
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width: 100%;
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height: 2px;
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margin-top: -1px;
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background-color: #ff0000;
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transform: rotate(45deg);
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}
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}
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}
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}
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// 激活之后，图标旋转180度
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&.active .uni-select-dc-icon {
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text {
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transform: rotate(180deg);
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}
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}
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&.active .uni-select-dc-inner {
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text {
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position: absolute;
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right: 10px;
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top: 12px;
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transform: rotate(-225deg);
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}
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}
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}
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// options部分
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.uni-select-dc-options {
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user-select: none;
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position: absolute;
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top: calc(100% + 5px);
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left: 0;
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width: 100%;
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// height: 400rpx;
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max-height: 400rpx;
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border-radius: 4px;
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border: 1px solid rgb(229, 229, 229);
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background: #fff;
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padding: 5px 0;
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box-sizing: border-box;
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z-index: 9999;
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.uni-select-dc-item {
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text-align: left;
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padding: 0 10px;
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box-sizing: border-box;
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cursor: pointer;
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line-height: 2.5;
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transition: 0.3s;
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font-size: 14px;
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// 取消长按的背景色
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-webkit-tap-highlight-color: rgba(255, 255, 255, 0);
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-webkit-user-select: none;
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-moz-user-focus: none;
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-moz-user-select: none;
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&.active {
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color: #409eff;
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background-color: #f5f7fa;
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&:hover {
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color: #409eff;
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background-color: #f5f7fa;
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}
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}
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&:hover {
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background-color: #f5f5f5;
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}
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}
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}
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}
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</style> |