Huanyuyuehui/pages/store/component/superwei-combox.vue

380 lines
8.7 KiB
Vue

<template>
<view class="superwei-combox" :class="border ? '' : 'superwei-combox__no-border'">
<view v-if="label" class="superwei-combox__label" :style="labelStyle">
<text>{{label}}</text>
</view>
<view class="superwei-combox__input-box">
<input class="superwei-combox__input" type="text" :placeholder="placeholder"
placeholder-class="superwei-combox__input-plac" v-model="inputVal" @input="onInput" @focus="onFocus"
@blur="onBlur" />
<uni-icons :type="showSelector? 'top' : 'bottom'" size="14" color="#999" @click="toggleSelector">
</uni-icons>
</view>
<view class="superwei-combox__selector" v-if="showSelector">
<view class="uni-popper__arrow"></view>
<scroll-view scroll-y="true" class="superwei-combox__selector-scroll">
<view class="superwei-combox__selector-empty" v-if="filterCandidatesLength === 0">
<text>{{emptyTips}}</text>
</view>
<view class="superwei-combox__selector-item" v-for="(item,index) in filterCandidates" :key="index">
<template v-if="(isJSON?(item.disabled?true:false):false)">
<text
:style="'color:'+disabledColor+';cursor: not-allowed;'">{{isJSON?item[keyName]?item[keyName]:'字段'+keyName+'不存在':item}}</text>
</template>
<template v-else>
<text @click="onSelectorClick(index)"
:style="(isJSON?item[keyName]?item[keyName]==inputVal:false:item==inputVal)?'font-weight: bold;background-color: '+selectedBackground+';color: '+selectedColor:''">{{isJSON?item[keyName]?item[keyName]:'字段'+keyName+'不存在':item}}</text>
</template>
</view>
</scroll-view>
</view>
</view>
</template>
<script>
/**
* Combox 组合输入框
* @description 组合输入框一般用于既可以输入也可以选择的场景
* @property {String} label 左侧文字
* @property {String} labelWidth 左侧内容宽度
* @property {String} placeholder 输入框占位符
* @property {Array} candidates 候选项列表
* @property {String} emptyTips 筛选结果为空时显示的文字
* @property {String} value 组合框的值
* @property {String} selectedBackground 选中项背景颜色
* @property {String} selectedColor 选中项文字颜色
* @property {Boolean} isJSON 是否是json数组
* @property {String} keyName json数组显示的字段值
* @property {String} disabledColor 禁用项文字颜色
* @property {Boolean} isAllowCreate 是否允许用户创建新条目
*/
export default {
name: 'superweiCombox',
emits: ['input', 'update:modelValue', 'select'],
props: {
isAllowCreate: {
type: Boolean,
default: true
},
disabledColor: {
type: String,
default: '#ababac'
},
isJSON: {
type: Boolean,
default: false
},
keyName: {
type: String,
default: ''
},
selectedBackground: {
type: String,
default: '#f5f7fa'
},
selectedColor: {
type: String,
default: '#409eff'
},
border: {
type: Boolean,
default: true
},
label: {
type: String,
default: ''
},
labelWidth: {
type: String,
default: 'auto'
},
placeholder: {
type: String,
default: ''
},
candidates: {
type: Array,
default () {
return []
}
},
emptyTips: {
type: String,
default: '无匹配项'
},
// #ifndef VUE3
value: {
type: [String, Number],
default: ''
},
// #endif
// #ifdef VUE3
modelValue: {
type: [String, Number],
default: ''
},
// #endif
},
data() {
return {
isInput: false,
showSelector: false,
isSelector: false,
inputVal: ''
}
},
computed: {
labelStyle() {
if (this.labelWidth === 'auto') {
return ""
}
return `width: ${this.labelWidth}`
},
filterCandidates() {
if (this.isInput) {
if (this.isJSON) {
return this.candidates.filter((item) => {
return item[this.keyName].toString().indexOf(this.inputVal) > -1
})
} else {
return this.candidates.filter((item) => {
return item.toString().indexOf(this.inputVal) > -1
})
}
} else {
return this.candidates
}
},
filterCandidatesLength() {
return this.filterCandidates.length
}
},
watch: {
// #ifndef VUE3
value: {
handler(newVal) {
this.inputVal = newVal
this.isInput = true
},
immediate: true
},
// #endif
// #ifdef VUE3
modelValue: {
handler(newVal) {
this.inputVal = newVal
this.isInput = true
},
immediate: true
},
// #endif
},
methods: {
toggleSelector() {
this.showSelector = !this.showSelector
this.isInput = false
},
onFocus() {
this.showSelector = true
this.isInput = false
},
onChange() {
setTimeout(() => {
this.showSelector = false
this.isInput = false
}, 200)
},
onBlur() {
if (!this.isInput) {
this.onChange()
} else {
if (this.inputVal && !this.isAllowCreate) {
let index = this.candidates.findIndex((item) => {
if (this.isJSON) {
return item[this.keyName].toString() == this.inputVal && !item.disabled
} else {
return item.toString() == this.inputVal
}
})
if (index == -1) {
if (this.filterCandidatesLength > 0) {
setTimeout(() => {
this.showSelector = false
this.isInput = false
if (!this.isSelector) {
this.inputVal = ''
this.$emit('input', this.inputVal)
this.$emit('update:modelValue', this.inputVal)
}
}, 200)
this.isSelector = false
} else {
this.showSelector = false
this.isInput = false
this.inputVal = ''
this.$emit('input', this.inputVal)
this.$emit('update:modelValue', this.inputVal)
}
} else {
this.onChange()
}
} else {
this.onChange()
}
}
},
onSelectorClick(index) {
let item = this.filterCandidates[index]
if (this.isJSON) {
this.inputVal = item[this.keyName]
} else {
this.inputVal = item
}
this.showSelector = false
this.isSelector = true
this.$emit('input', this.inputVal)
this.$emit('update:modelValue', this.inputVal)
this.$emit('select', item)
},
onInput() {
setTimeout(() => {
this.$emit('input', this.inputVal)
this.$emit('update:modelValue', this.inputVal)
})
}
}
}
</script>
<style lang="scss" scoped>
.superwei-combox {
font-size: 14px;
border: 1px solid #DCDFE6;
border-radius: 4px;
padding: 6px 10px;
position: relative;
/* #ifndef APP-NVUE */
display: flex;
/* #endif */
// height: 40px;
flex-direction: row;
align-items: center;
// border-bottom: solid 1px #DDDDDD;
}
.superwei-combox__label {
font-size: 16px;
line-height: 22px;
padding-right: 10px;
color: #999999;
}
.superwei-combox__input-box {
position: relative;
/* #ifndef APP-NVUE */
display: flex;
/* #endif */
flex: 1;
flex-direction: row;
align-items: center;
cursor: pointer;
}
.superwei-combox__input {
flex: 1;
font-size: 14px;
height: 22px;
line-height: 22px;
}
.superwei-combox__input-plac {
font-size: 14px;
color: #ccc; //placeholder-style="color:#FFFFFF"
}
.superwei-combox__selector {
/* #ifndef APP-NVUE */
box-sizing: border-box;
/* #endif */
position: absolute;
top: calc(100% + 12px);
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: 2;
padding: 4px 0;
}
.superwei-combox__selector-scroll {
/* #ifndef APP-NVUE */
max-height: 200px;
box-sizing: border-box;
/* #endif */
}
.superwei-combox__selector-empty,
.superwei-combox__selector-item {
/* #ifndef APP-NVUE */
display: flex;
cursor: pointer;
/* #endif */
line-height: 36px;
font-size: 14px;
text-align: center;
// border-bottom: solid 1px #DDDDDD;
padding: 0px 0px;
}
.superwei-combox__selector-empty text,
.superwei-combox__selector-item text {
width: 100%;
}
.superwei-combox__selector-item:hover {
background-color: #f9f9f9;
}
.superwei-combox__selector-empty:last-child,
.superwei-combox__selector-item:last-child {
/* #ifndef APP-NVUE */
border-bottom: none;
/* #endif */
}
// picker 弹出层通用的指示小三角
.uni-popper__arrow,
.uni-popper__arrow::after {
position: absolute;
display: block;
width: 0;
height: 0;
border-color: transparent;
border-style: solid;
border-width: 6px;
}
.uni-popper__arrow {
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::after {
content: " ";
top: 1px;
margin-left: -6px;
border-top-width: 0;
border-bottom-color: #fff;
}
.superwei-combox__no-border {
border: none;
}
</style>