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129 lines
2.5 KiB
129 lines
2.5 KiB
<template>
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<view class="w-picker-view">
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<picker-view class="d-picker-view" :indicator-style="itemHeight" :value="pickVal" @change="handlerChange">
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<picker-view-column>
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<view class="w-picker-item" v-for="(item,index) in range" :key="index">{{item[nodeKey]}}</view>
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</picker-view-column>
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</picker-view>
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</view>
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</template>
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<script>
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export default {
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props:{
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itemHeight:{
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type:String,
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default:"44px"
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},
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options:{
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type:[Array,Object],
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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:String,
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default:""
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},
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defaultType:{
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type:String,
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default:"label"
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},
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defaultProps:{
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type:Object,
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default(){
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return{
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label:"label",
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value:"value"
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}
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}
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}
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},
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data() {
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return {
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pickVal:[]
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};
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},
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computed:{
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nodeKey(){
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return this.defaultProps.label;
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},
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nodeValue(){
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return this.defaultProps.value;
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},
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range(){
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return this.options
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}
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},
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watch:{
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value(val){
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if(this.options.length!=0){
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this.initData();
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}
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},
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options(val){
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this.initData();
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}
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},
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created() {
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if(this.options.length!=0){
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this.initData();
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}
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},
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methods:{
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initData(){
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let dVal=this.value||"";
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let data=this.range;
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let pickVal=[0];
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let cur=null;
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let label="";
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let value,idx;
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if(this.defaultType==this.nodeValue){
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value=data.find((v)=>v[this.nodeValue]==dVal);
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idx=data.findIndex((v)=>v[this.nodeValue]==dVal);
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}else{
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value=data.find((v)=>v[this.nodeKey]==dVal);
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idx=data.findIndex((v)=>v[this.nodeKey]==dVal);
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}
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pickVal=[idx!=-1?idx:0];
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this.$nextTick(()=>{
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this.pickVal=pickVal;
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});
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if(this.defaultType==this.nodeValue){
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this.$emit("change",{
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result:value?value[this.nodeKey]:data[0][this.nodeKey],
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value:dVal||data[0][this.nodeKey],
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obj:value?value:data[0]
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})
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}else{
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this.$emit("change",{
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result:dVal||data[0][this.nodeKey],
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value:value?value[this.nodeValue]:data[0][this.nodeValue],
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obj:value?value:data[0]
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})
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}
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},
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handlerChange(e){
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let arr=[...e.detail.value];
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let pickVal=[arr[0]||0];
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let data=this.range;
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let cur=data[arr[0]];
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let label="";
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let value="";
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this.$nextTick(()=>{
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this.pickVal=pickVal;
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});
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this.$emit("change",{
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result:cur[this.nodeKey],
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value:cur[this.nodeValue],
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obj:cur
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})
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}
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}
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}
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</script>
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<style lang="scss">
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@import "./w-picker.css";
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</style>
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