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<template>
<view class="uni-stat__select">
<span v-if="label" class="uni-label-text hide-on-phone">{{label + ':'}}</span>
<view class="uni-stat-box" :class="{'uni-stat__actived': current}">
<view class="uni-select" :class="{'uni-select--disabled':disabled, 'uni-select--wrap': shouldWrap , 'border-default': mode == 'default','border-bottom': mode == 'underline'}">
<view class="uni-select__input-box" @click="toggleSelector" :class="{'uni-select__input-box--wrap': shouldWrap}">
<view v-if="slotSelected" class="slot-content padding-top-bottom" :class="{'uni-select__input-text--wrap': shouldWrap}">
<slot name="selected" :selectedItems="getSelectedItems()"></slot>
</view>
<template v-else>
<view v-if="textShow" class="uni-select__input-text" :class="{'uni-select__input-text--wrap': shouldWrap}">
<view class="padding-top-bottom" :class="'align-'+align">{{textShow}}</view>
</view>
<view v-else class="uni-select__input-text uni-select__input-placeholder" :class="'align-'+align">{{typePlaceholder}}</view>
</template>
<view key="clear-button" v-if="!hideRight && shouldShowClear && clear && !disabled" @click.stop="clearVal">
<uni-icons type="clear" color="#c0c4cc" size="24" />
</view>
<view key="arrow-button" v-else-if="!hideRight">
<uni-icons :type="showSelector? 'top' : 'bottom'" size="14" color="#999" />
</view>
</view>
<view class="uni-select--mask" v-if="showSelector" @click="toggleSelector" />
<view class="uni-select__selector" :style="getOffsetByPlacement" v-if="showSelector">
<view :class="placement=='bottom'?'uni-popper__arrow_bottom':'uni-popper__arrow_top'"></view>
<scroll-view scroll-y="true" class="uni-select__selector-scroll">
<template v-if="slotEmpty && mixinDatacomResData.length === 0">
<view class="uni-select__selector-empty">
<slot name="empty" :empty="emptyTips"></slot>
</view>
</template>
<template v-else>
<view v-if="mixinDatacomResData.length === 0" class="uni-select__selector-empty">
<text>{{emptyTips}}</text>
</view>
</template>
<template v-if="slotOption">
<view v-for="(itemData,index) in mixinDatacomResData" :key="index" @click="change(itemData)">
<slot name="option" :item="itemData" :itemSelected="multiple? getCurrentValues().includes(itemData.value):getCurrentValues() == itemData.value"></slot>
</view>
</template>
<template v-else>
<view v-if="!multiple && mixinDatacomResData.length > 0" class="uni-select__selector-item" v-for="(item,index) in mixinDatacomResData" :key="index"
@click="change(item)">
<text :class="{'uni-select__selector__disabled': item.disable}">{{formatItemName(item)}}</text>
</view>
<view v-if="multiple && mixinDatacomResData.length > 0" >
<checkbox-group @change="checkBoxChange">
<label class="uni-select__selector-item" v-for="(item,index) in mixinDatacomResData" :key="index" >
<checkbox :value="index+''" :checked="getCurrentValues().includes(item.value)" :disabled="item.disable"></checkbox>
<view :class="{'uni-select__selector__disabled': item.disable}">{{formatItemName(item)}}</view>
</label>
</checkbox-group>
</view>
</template>
</scroll-view>
</view>
</view>
</view>
</view>
</template>
<script>
/**
* DataChecklist 数据选择器
* @description 通过数据渲染的下拉框组件
* @tutorial https://uniapp.dcloud.io/component/uniui/uni-data-select
* @property {String|Array} value 默认值,多选时为数组
* @property {Array} localdata 本地数据 ,格式 [{text:'',value:''}]
* @property {Boolean} clear 是否可以清空已选项
* @property {Boolean} emptyText 没有数据时显示的文字 ,本地数据无效
* @property {String} label 左侧标题
* @property {String} placeholder 输入框的提示文字
* @property {Boolean} disabled 是否禁用
* @property {Boolean} multiple 是否多选模式
* @property {Boolean} wrap 是否允许选中文本换行显示
* @property {String} placement 弹出位置
* @value top 顶部弹出
* @value bottom 底部弹出(default)
* @property {String} align 选择文字的位置
* @value left 显示左侧
* @value center 显示中间
* @value right 显示 右侧
* @property {Boolean} hideRight 是否隐藏右侧按钮
* @property {String} mode 边框样式
* @value default 四周边框
* @value underline 下边框
* @value none 无边框
* @event {Function} change 选中发生变化触发
* @event {Function} open 选择框开启时触发
* @event {Function} close 选择框关闭时触发
* @event {Function} clear 点击清除按钮之后触发
*/
export default {
name: "uni-data-select",
mixins: [uniCloud.mixinDatacom || {}],
emits: [
'open',
'close',
'update:modelValue',
'input',
'clear',
'change'
],
model: {
prop: 'modelValue',
event: 'update:modelValue'
},
options: {
// #ifdef MP-TOUTIAO
virtualHost: false,
// #endif
// #ifndef MP-TOUTIAO
virtualHost: true
// #endif
},
props: {
localdata: {
type: Array,
default () {
return []
}
},
value: {
type: [String, Number, Array],
default: ''
},
modelValue: {
type: [String, Number, Array],
default: ''
},
label: {
type: String,
default: ''
},
placeholder: {
type: String,
default: '请选择'
},
emptyTips: {
type: String,
default: '无选项'
},
clear: {
type: Boolean,
default: true
},
defItem: {
type: Number,
default: 0
},
disabled: {
type: Boolean,
default: false
},
// 格式化输出 用法 field="_id as value, version as text, uni_platform as label" format="{label} - {text}"
format: {
type: String,
default: ''
},
placement: {
type: String,
default: 'bottom'
},
multiple: {
type: Boolean,
default: false
},
wrap: {
type: Boolean,
default: false
},
align:{
type: String,
default: "left"
},
hideRight: {
type: Boolean,
default: false
},
mode:{
type: String,
default: 'default'
}
},
data() {
return {
showSelector: false,
current: '',
mixinDatacomResData: [],
apps: [],
channels: [],
cacheKey: "uni-data-select-lastSelectedValue",
};
},
created() {
this.debounceGet = this.debounce(() => {
this.query();
}, 300);
if (this.collection && !this.localdata.length) {
this.debounceGet();
}
},
computed: {
typePlaceholder() {
const text = {
'opendb-stat-app-versions': '版本',
'opendb-app-channels': '渠道',
'opendb-app-list': '应用'
}
const common = this.placeholder
const placeholder = text[this.collection]
return placeholder ?
common + placeholder :
common
},
valueCom() {
if (this.value === '') return this.modelValue
if (this.modelValue === '') return this.value
return this.value
},
textShow() {
// 长文本显示
if (this.multiple) {
const currentValues = this.getCurrentValues();
if (Array.isArray(currentValues) && currentValues.length > 0) {
const selectedItems = this.mixinDatacomResData.filter(item => currentValues.includes(item.value));
return selectedItems.map(item => this.formatItemName(item)).join(', ');
} else {
return ''; // 空数组时返回空字符串,显示占位符
}
} else {
return this.current;
}
},
shouldShowClear() {
if (this.multiple) {
const currentValues = this.getCurrentValues();
return Array.isArray(currentValues) && currentValues.length > 0;
} else {
return !!this.current;
}
},
shouldWrap() {
// 只有在多选模式、开启换行、且有内容时才应用换行样式
return this.multiple && this.wrap && !!this.textShow;
},
getOffsetByPlacement() {
switch (this.placement) {
case 'top':
return "bottom:calc(100% + 12px);";
case 'bottom':
return "top:calc(100% + 12px);";
}
},
slotSelected(){
// #ifdef VUE2
return this.$scopedSlots ? this.$scopedSlots.selected : false
// #endif
// #ifdef VUE3
return this.$slots ? this.$slots.selected : false
// #endif
},
slotEmpty(){
// #ifdef VUE2
return this.$scopedSlots ? this.$scopedSlots.empty : false
// #endif
// #ifdef VUE3
return this.$slots ? this.$slots.empty : false
// #endif
},
slotOption(){
// #ifdef VUE2
return this.$scopedSlots ? this.$scopedSlots.option : false
// #endif
// #ifdef VUE3
return this.$slots ? this.$slots.option : false
// #endif
}
},
watch: {
showSelector:{
handler(val,old){
val ? this.$emit('open') : this.$emit('close')
}
},
localdata: {
immediate: true,
handler(val, old) {
if (Array.isArray(val) && old !== val) {
this.mixinDatacomResData = val
}
}
},
valueCom(val, old) {
this.initDefVal()
},
mixinDatacomResData: {
immediate: true,
handler(val) {
if (val.length) {
this.initDefVal()
}
}
},
},
methods: {
getSelectedItems() {
const currentValues = this.getCurrentValues();
let _minxData = this.mixinDatacomResData
// #ifdef MP-WEIXIN || MP-TOUTIAO
_minxData = JSON.parse(JSON.stringify(this.mixinDatacomResData))
// #endif
if (this.multiple) {
return _minxData.filter(item => currentValues.includes(item.value)) || [];
} else {
return _minxData.filter(item => item.value === currentValues) || [];
}
},
debounce(fn, time = 100) {
let timer = null
return function(...args) {
if (timer) clearTimeout(timer)
timer = setTimeout(() => {
fn.apply(this, args)
}, time)
}
},
// 检查项目是否已选中
isSelected(item) {
if (this.multiple) {
const currentValues = this.getCurrentValues();
return Array.isArray(currentValues) && currentValues.includes(item.value);
} else {
return this.getCurrentValues() === item.value;
}
},
// 获取当前选中的值
getCurrentValues() {
if (this.multiple) {
return Array.isArray(this.valueCom) ? this.valueCom : (this.valueCom ? [this.valueCom] : []);
} else {
return this.valueCom;
}
},
// 执行数据库查询
query() {
this.mixinDatacomEasyGet();
},
// 监听查询条件变更事件
onMixinDatacomPropsChange() {
if (this.collection) {
this.debounceGet();
}
},
initDefVal() {
let defValue = this.multiple ? [] : ''
if ((this.valueCom || this.valueCom === 0) && !this.isDisabled(this.valueCom)) {
defValue = this.valueCom
} else {
let strogeValue
if (this.collection) {
strogeValue = this.getCache()
}
if (strogeValue || strogeValue === 0) {
defValue = strogeValue
} else {
let defItem = this.multiple ? [] : ''
if (this.defItem > 0 && this.defItem <= this.mixinDatacomResData.length) {
defItem = this.multiple ? [this.mixinDatacomResData[this.defItem - 1].value] : this.mixinDatacomResData[this.defItem - 1].value
}
defValue = defItem
}
if (defValue || defValue === 0 || (this.multiple && Array.isArray(defValue) && defValue.length > 0)) {
this.emit(defValue)
}
}
if (this.multiple) {
const selectedValues = Array.isArray(defValue) ? defValue : (defValue ? [defValue] : []);
const selectedItems = this.mixinDatacomResData.filter(item => selectedValues.includes(item.value));
this.current = selectedItems.map(item => this.formatItemName(item));
} else {
const def = this.mixinDatacomResData.find(item => item.value === defValue)
this.current = def ? this.formatItemName(def) : ''
}
},
/**
* @param {[String, Number, Array]} value
* 判断用户给的 value 是否同时为禁用状态
*/
isDisabled(value) {
if (Array.isArray(value)) {
// 对于数组,如果任意一个值被禁用,则认为整体被禁用
return value.some(val => {
return this.mixinDatacomResData.some(item => item.value === val && item.disable);
});
} else {
let isDisabled = false;
this.mixinDatacomResData.forEach(item => {
if (item.value === value) {
isDisabled = item.disable
}
})
return isDisabled;
}
},
clearVal() {
const emptyValue = this.multiple ? [] : '';
this.emit(emptyValue)
this.current = this.multiple ? [] : ''
if (this.collection) {
this.removeCache()
}
this.$emit('clear')
},
checkBoxChange(res){
let range = res.detail.value
let currentValues = range && range.length > 0? range.map((item)=>{
const index = parseInt(item, 10);
if (isNaN(index)) {
console.error(`无效索引: ${item}`);
}
if (index < 0 || index >= this.mixinDatacomResData.length) {
console.error(`索引越界: ${index}`);
}
return this.mixinDatacomResData[index].value;
}) : []
const selectedItems = this.mixinDatacomResData.filter(dataItem => currentValues.includes(dataItem.value));
this.current = selectedItems.map(dataItem => this.formatItemName(dataItem));
this.emit(currentValues);
},
change(item) {
if (!item.disable) {
if (this.multiple) {
// 多选模式
let currentValues = this.getCurrentValues();
if (!Array.isArray(currentValues)) {
currentValues = currentValues ? [currentValues] : [];
}
const itemValue = item.value;
const index = currentValues.indexOf(itemValue);
if (index > -1) {
currentValues.splice(index, 1);
} else {
currentValues.push(itemValue);
}
const selectedItems = this.mixinDatacomResData.filter(dataItem => currentValues.includes(dataItem.value));
this.current = selectedItems.map(dataItem => this.formatItemName(dataItem));
this.emit(currentValues);
} else {
// 单选模式
this.showSelector = false
this.current = this.formatItemName(item)
this.emit(item.value)
}
}
},
emit(val) {
this.$emit('input', val)
this.$emit('update:modelValue', val)
this.$emit('change', val)
if (this.collection) {
this.setCache(val);
}
},
toggleSelector() {
if (this.disabled) {
return
}
this.showSelector = !this.showSelector
},
formatItemName(item) {
let {
text,
value,
channel_code
} = item
channel_code = channel_code ? `(${channel_code})` : ''
if (this.format) {
// 格式化输出
let str = "";
str = this.format;
for (let key in item) {
str = str.replace(new RegExp(`{${key}}`, "g"), item[key]);
}
return str;
} else {
return this.collection.indexOf('app-list') > 0 ?
`${text}(${value})` :
(
text ?
text :
`未命名${channel_code}`
)
}
},
// 获取当前加载的数据
getLoadData() {
return this.mixinDatacomResData;
},
// 获取当前缓存key
getCurrentCacheKey() {
return this.collection;
},
// 获取缓存
getCache(name = this.getCurrentCacheKey()) {
let cacheData = uni.getStorageSync(this.cacheKey) || {};
return cacheData[name];
},
// 设置缓存
setCache(value, name = this.getCurrentCacheKey()) {
let cacheData = uni.getStorageSync(this.cacheKey) || {};
cacheData[name] = value;
uni.setStorageSync(this.cacheKey, cacheData);
},
// 删除缓存
removeCache(name = this.getCurrentCacheKey()) {
let cacheData = uni.getStorageSync(this.cacheKey) || {};
delete cacheData[name];
uni.setStorageSync(this.cacheKey, cacheData);
},
}
}
</script>
<style lang="scss">
$uni-base-color: #6a6a6a !default;
$uni-main-color: #333 !default;
$uni-secondary-color: #909399 !default;
$uni-border-3: #e5e5e5;
$uni-primary: #2979ff !default;
$uni-success: #4cd964 !default;
$uni-warning: #f0ad4e !default;
$uni-error: #dd524d !default;
$uni-info: #909399 !default;
/* #ifndef APP-NVUE */
@media screen and (max-width: 500px) {
.hide-on-phone {
display: none;
}
}
/* #endif */
.uni-stat__select {
display: flex;
align-items: center;
// padding: 15px;
/* #ifdef H5 */
cursor: pointer;
/* #endif */
width: 100%;
flex: 1;
box-sizing: border-box;
}
.uni-stat-box {
background-color: #fff;
width: 100%;
flex: 1;
}
.uni-stat__actived {
width: 100%;
flex: 1;
// outline: 1px solid #2979ff;
}
.uni-label-text {
font-size: 14px;
font-weight: bold;
color: $uni-base-color;
margin: auto 0;
margin-right: 5px;
}
.border-bottom {
border-bottom: solid 1px $uni-border-3;
}
.border-default {
border: 1px solid $uni-border-3;
}
.uni-select {
font-size: 14px;
box-sizing: border-box;
border-radius: 4px;
padding: 0 5px;
padding-left: 10px;
position: relative;
/* #ifndef APP-NVUE */
display: flex;
user-select: none;
/* #endif */
flex-direction: row;
align-items: center;
width: 100%;
flex: 1;
min-height: 35px;
&--disabled {
background-color: #f5f7fa;
cursor: not-allowed;
}
&--wrap {
height: auto;
min-height: 35px;
// align-items: flex-start;
}
}
.uni-select__label {
font-size: 16px;
// line-height: 22px;
height: 35px;
padding-right: 10px;
color: $uni-secondary-color;
}
.uni-select__input-box {
// height: 35px;
width: 0px;
position: relative;
/* #ifndef APP-NVUE */
display: flex;
/* #endif */
flex: 1;
flex-direction: row;
align-items: center;
&--wrap {
.uni-select__input-text {
margin-right: 8px;
}
}
.padding-top-bottom {
padding-top: 5px;
padding-bottom: 5px;
}
.slot-content {
width: 100%;
display: flex;
flex-direction: row;
flex-wrap: wrap;
}
}
.uni-select__input {
flex: 1;
font-size: 14px;
height: 22px;
line-height: 22px;
}
.uni-select__input-plac {
font-size: 14px;
color: $uni-secondary-color;
}
.uni-select__selector {
/* #ifndef APP-NVUE */
box-sizing: border-box;
/* #endif */
position: absolute;
left: 0;
width: 100%;
background-color: #FFFFFF;
border: 1px solid #EBEEF5;
border-radius: 6px;
box-shadow: 0 2px 12px 0 rgba(0, 0, 0, 0.1);
z-index: 3;
padding: 4px 0;
}
.uni-select__selector-scroll {
/* #ifndef APP-NVUE */
max-height: 200px;
box-sizing: border-box;
/* #endif */
}
/* #ifdef H5 */
@media (min-width: 768px) {
.uni-select__selector-scroll {
max-height: 600px;
}
}
/* #endif */
.uni-select__selector-empty,
.uni-select__selector-item {
/* #ifndef APP-NVUE */
display: flex;
cursor: pointer;
/* #endif */
flex-direction: row;
align-items: center;
line-height: 35px;
font-size: 14px;
/* border-bottom: solid 1px $uni-border-3; */
padding: 0px 10px;
}
.uni-select__selector-item-check {
margin-left: auto;
}
.uni-select__selector-empty:last-child,
.uni-select__selector-item:last-child {
/* #ifndef APP-NVUE */
border-bottom: none;
/* #endif */
}
.uni-select__selector__disabled {
opacity: 0.4;
cursor: default;
}
/* picker 弹出层通用的指示小三角 */
.uni-popper__arrow_bottom,
.uni-popper__arrow_bottom::after,
.uni-popper__arrow_top,
.uni-popper__arrow_top::after {
position: absolute;
display: block;
width: 0;
height: 0;
border-color: transparent;
border-style: solid;
border-width: 6px;
}
.uni-popper__arrow_bottom {
filter: drop-shadow(0 2px 12px rgba(0, 0, 0, 0.03));
top: -6px;
left: 10%;
margin-right: 3px;
border-top-width: 0;
border-bottom-color: #EBEEF5;
}
.uni-popper__arrow_bottom::after {
content: " ";
top: 1px;
margin-left: -6px;
border-top-width: 0;
border-bottom-color: #fff;
}
.uni-popper__arrow_top {
filter: drop-shadow(0 2px 12px rgba(0, 0, 0, 0.03));
bottom: -6px;
left: 10%;
margin-right: 3px;
border-bottom-width: 0;
border-top-color: #EBEEF5;
}
.uni-popper__arrow_top::after {
content: " ";
bottom: 1px;
margin-left: -6px;
border-bottom-width: 0;
border-top-color: #fff;
}
.uni-select__input-text {
// width: 280px;
width: 100%;
color: $uni-main-color;
white-space: nowrap;
text-overflow: ellipsis;
-o-text-overflow: ellipsis;
overflow: hidden;
&--wrap {
white-space: normal;
text-overflow: initial;
-o-text-overflow: initial;
overflow: visible;
word-wrap: break-word;
word-break: break-all;
// line-height: 1.5;
}
}
.uni-select__input-placeholder {
color: $uni-base-color;
font-size: 12px;
margin: 1px 0;
}
.uni-select--mask {
position: fixed;
top: 0;
bottom: 0;
right: 0;
left: 0;
z-index: 2;
}
.align-left {
text-align: left;
}
.align-center {
text-align: center;
}
.align-right {
text-align: right;
}
</style>