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| <template>
<div class="clw-cascader pt-3">
<n-cascader
ref="cascader"
:value="value"
:title="title"
filterable
clearable
:check-strategy="checkStrategy"
:label-field="labelField"
:value-field="valueField"
:options="options"
:size="size"
:disabled="disabled"
placeholder=""
@change="change"
@focus="focus"
@blur="blur"
@input="input"
></n-cascader>
<label class="z-1 text-warmgray" :style="style">{{ placeholder }}</label>
</div>
</template>
<script>
export default {
name: 'ClwCascader',
props: {
placeholder: {
type: String,
default: '',
},
modelValue: {
type: String,
default: '',
},
options: {
type: Array,
default() {
return []
},
},
labelField: {
type: String,
default: '',
},
valueField: {
type: String,
default: '',
},
checkStrategy: {
type: String,
default: 'child',
},
size: {
type: String,
default: 'medium',
},
disabled: {
type: Boolean,
default: false,
},
labelBG: {
type: String,
default: '#ffffff',
},
labelColor: {
type: String,
default: '#19aa8d',
},
},
emits: ['focus', 'blur', 'input', 'change', 'update:modelValue'],
data() {
return {
value: '',
inputHeight: null,
style: {},
}
},
computed: {
title() {
return `${this.placeholder}：${this.modelValue}`
},
},
watch: {
modelValue: {
deep: true,
handler(now) {
this.value = now[now.length - 1] || ''
this.resetStyle()
},
},
},
mounted() {
this.inputHeight = this.$refs.cascader.$el.offsetHeight
this.resetStyle()
},
methods: {
focus() {
this.$emit('focus')
},
blur() {
this.resetStyle()
this.$emit('blur')
},
input(val) {
this.$emit('input', val)
},
change(value, option, all) {
this.$emit('update:modelValue', value)
if (all) {
this.$emit(
'change',
all.map((item) => {
return item.code
})
)
} else {
this.$emit('change', [])
}
this.resetStyle()
},
resetStyle() {
if (this.value) {
this.style = {
transform: `translateY(${-(this.inputHeight * 1.47)}px)`,
color: `${this.labelColor} !important`,
'background-color': this.labelBG,
padding: '0 10px',
}
} else {
this.style = {
bottom: `${this.inputHeight * 0.18}px`,
}
}
},
},
}
</script>
<style lang="scss" scoped>
.clw-cascader {
position: relative;
label {
position: absolute;
left: 15px;
pointer-events: none;
transition: all 0.3s ease;
}
}
</style>
|
