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<script lang="ts">
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// import pickerItem from './picker-item.uvue'
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import { PropType} from "vue"
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import { getUid,rpx2px } from "../../core/util/xCoreUtil.uts"
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import { getDefaultColor } from "../../core/util/xCoreColorUtil.uts"
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import { checkIsCssUnit } from "../../core/util/xCoreUtil.uts"
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import { xConfig } from "../../config/xConfig.uts"
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import { PICKER_ITEM_INFO } from "../../interface.uts"
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import { X_PICKER_X_ITEM } from "./interface.uts"
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import {setDefaultByValueAr} from "./util.uts"
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type DEFAULTIDS_INDEX = {
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ids: string[],
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indexs: number[],
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}
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/**
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*
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* @displayName 选择器容器 PickerView
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*
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* **描述**：这是非官方pickerView封装,由于我是自行开发的，
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因此比较好的能控制动画，回弹，阻尼，禁用项等
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如果你不喜欢这个样式可以修改源码，比官方的更好更改样式。
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组件采用数组id式选择，非索引。考虑到实际实用中多以id为交互提交数据。因此摒弃了传统的索引选项
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*
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* ## 平台兼容
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* | H5 | andriod | IOS | 小程序 | UTS | UNIAPP-X SDK | version |
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| --- | --- | --- | --- | --- | --- | --- |
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| ☑ | ☑️ | x | x | ☑️ | 4.02+ | 1.0.1 |
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*/
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export default {
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// components:{
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// pickerItem
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// },
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data(){
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return {
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wrapTotalWidth:0,
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nowValue:[] as string[],
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okNodeInfo:false,
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tid:0,
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parentIndex:0,
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nowValueIndex:[] as number[],
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showList:[] as X_PICKER_X_ITEM[][],
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showView:false
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}
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},
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emits:['update:modelValue','change'],
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props:{
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/**
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* 选项的高度
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*/
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cellHeight:{
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type:String,
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default:'100'
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},
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/**
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* 数据项
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* 格式类型为：PICKER_ITEM_INFO
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*/
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list: {
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type: Array as PropType<PICKER_ITEM_INFO[]>,
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default: () : PICKER_ITEM_INFO[] => [] as PICKER_ITEM_INFO[]
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},
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/**
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* 当前选中项的id值
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*/
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modelValue: {
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type: Array as PropType<string[]>,
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default: () : string[] => [] as string[]
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},
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cellUnits:{
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type: Array as PropType<string[]>,
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default: () : string[] => [] as string[]
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},
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/**
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* 项目的字体号大小
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*/
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fontSize:{
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type:String,
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default:"30"
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}
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},
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mounted(){
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let t = this;
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t.showView = true;
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let yanchi = 100
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// #ifdef WEB
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yanchi=0
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// #endif
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this.tid = setTimeout(function() {
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t.getNodeInfo().then(()=>{
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t.nowValue = t.modelValue.slice(0);
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let nowindex = [] as number[]
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if(t.nowValue.length==0){
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nowindex = t.getDefaultIndexs().indexs;
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}else{
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nowindex = t.getDefaultIndexsByIds(t.nowValue)
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}
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t.nowValueIndex = nowindex
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// #ifdef WEB
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t.showList = t.getListByIndexs(nowindex)
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// #endif
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// #ifdef APP
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t.tid = setTimeout(function() {
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t.showList = t.getListByIndexs(nowindex)
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}, 150);
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// #endif
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})
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}, yanchi);
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},
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watch: {
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modelValue(newValue:string[]) {
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let t = this;
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if(newValue.join('') == this.nowValue.join('')) return;
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clearTimeout(this.tid)
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this.tid = setTimeout(function() {
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t.nowValue = newValue;
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t.showView = false;
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t.showList = t.getListByIndexs(t.nowValueIndex)
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t.$nextTick(()=>{
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t.nowValueIndex = t.getDefaultIndexsByIds(t.nowValue)
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t.showView = true;
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})
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}, 10);
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},
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list(){
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let t = this;
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clearTimeout(this.tid)
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this.tid = setTimeout(function() {
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let values = t.nowValue.slice(0);
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let nowindex = [] as number[]
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if(values.length==0){
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nowindex = t.getDefaultIndexs().indexs;
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}else{
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nowindex = t.getDefaultIndexsByIds(values)
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}
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t.showList = t.getListByIndexs(nowindex)
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t.nowValueIndex = nowindex
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}, 50);
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},
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},
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beforeUnmount() {
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clearTimeout(this.tid);
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},
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computed:{
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_cellHeight() : string {
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return checkIsCssUnit(this.cellHeight, 'rpx')
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},
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_list() : X_PICKER_X_ITEM[] {
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let list = this.list.slice(0) as PICKER_ITEM_INFO[];
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function addOptionalFieldsToTreeClolone(tree : PICKER_ITEM_INFO[]) : X_PICKER_X_ITEM[] {
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let nowlist = [] as X_PICKER_X_ITEM[]
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for (let i = 0; i < tree.length; i++) {
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const node = tree[i];
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node.disabled = node.disabled == null ? false : node.disabled! as boolean;
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node.id = node.id == null ? i.toString() : node.id! as string;
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node.children = node.children == null ? ([] as PICKER_ITEM_INFO[]) : node.children! as PICKER_ITEM_INFO[];
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let item = {
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id:node.id!,
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title:node.title,
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disabled:node.disabled!,
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children:[] as X_PICKER_X_ITEM[]
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} as X_PICKER_X_ITEM
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if ((node.children!).length > 0) {
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item.children = addOptionalFieldsToTreeClolone(node.children! as PICKER_ITEM_INFO[]);
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}
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nowlist.push(item)
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}
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return nowlist
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}
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return addOptionalFieldsToTreeClolone(list)
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},
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_maxDeep():number{
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if(this._list.length==0) return 0;
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function getdiepWidth(list : X_PICKER_X_ITEM[]) : number {
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let deepIndex = 1;
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const node = list[0];
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if(node.children.length>0){
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deepIndex += getdiepWidth(node.children);
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}
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return deepIndex;
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}
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return getdiepWidth(this._list);
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},
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_fontSize() : string {
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return checkIsCssUnit(this.fontSize, 'rpx')
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},
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_deepWidth():number{
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if(this._list.length==0) return this.wrapTotalWidth;
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return this.wrapTotalWidth / Math.max(1,this.showList.length)
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},
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_boxHeight() : number {
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let p = parseInt(this.cellHeight);
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if (this.cellHeight.lastIndexOf('rpx') > -1 || this.cellHeight.lastIndexOf('px') == -1) {
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p = rpx2px(p);
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}
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return p
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},
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_modelValue():string[]{
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let value = this.nowValue.slice(0);
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if(value.length!=this._maxDeep){
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value = setDefaultByValueAr(this._list,value,this._maxDeep)
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}
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return value;
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}
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},
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methods: {
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// 没有选择时，取默认选中的顺序值
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getDefaultIndexs():DEFAULTIDS_INDEX{
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let list = this._list;
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let ids = [] as string[];
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let indexs = [] as number[]
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function getid(listitem:X_PICKER_X_ITEM[]){
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if(listitem.length==0) return;
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let id = listitem[0].id
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ids.push(id==null?'0':id!)
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indexs.push(0)
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let children = listitem[0].children==null?([] as X_PICKER_X_ITEM[]) : listitem[0].children!
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if(children.length>0){
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getid(children)
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}
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}
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getid(list);
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return {
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ids:ids,
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indexs:indexs
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} as DEFAULTIDS_INDEX
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},
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/**
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* 检查是否有禁用选项，如果有，则回拨到没有禁用选项中。
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*/
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isDisabledIndex(indexs:number[],list:X_PICKER_X_ITEM[][]):number[]{
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let testindexs = indexs.slice(0)
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for(let i=0;i<indexs.length;i++){
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let dindex = testindexs[i];
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let item = list[i][dindex]
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if(item.disabled){
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dindex = this.nowValueIndex[i]>dindex?dindex+1:dindex-1;
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dindex = Math.max(list.length,dindex)
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dindex = Math.min(0,dindex)
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}
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testindexs.splice(i,1,dindex)
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}
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return testindexs;
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},
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//通过默认选中的索引值，取得当前的列表数据
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getListByIndexs(indexs:number[]):X_PICKER_X_ITEM[][]{
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let testlist = [] as X_PICKER_X_ITEM[][];
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function getlist(list:X_PICKER_X_ITEM[],sellectedsIndex:number[]){
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let index = sellectedsIndex.shift();
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if(index==null||list.length==0) return;
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testlist.push(list.slice(0))
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let item = [] as X_PICKER_X_ITEM[]
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if(index<list.length){
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item = list[index!].children.slice(0)
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}
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if(sellectedsIndex.length>0&&item.length>0){
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getlist(item,sellectedsIndex)
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}
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}
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getlist(this._list,indexs.slice(0))
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return testlist;
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},
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//通过选中的索引值，取得当前选中的id值。
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getDefaultIdsByindexs(currentsIndexs:number[]):string[]{
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let t = this;
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let ids = [] as string[];
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function getlist(index:number){
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if(index==null||t.showList.length==0||index>=t.showList.length||index>=currentsIndexs.length||currentsIndexs.length==0) return;
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let item = t.showList[index][currentsIndexs[index]];
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if(item!=null){
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ids.push(t.showList[index][currentsIndexs[index]].id)
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getlist(index+1)
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}
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}
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getlist(0)
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return ids;
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},
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// 通过选中的id值，取得索引值。
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getDefaultIndexsByIds(ids:string[]):number[]{
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if(ids.length==0) return [] as number[];
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let indexs = [] as number[]
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function getlist(list:X_PICKER_X_ITEM[],sellectedsIds:string[]){
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let id = sellectedsIds.shift();
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if(id==null||list.length==0) return;
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let index = list.findIndex((el:X_PICKER_X_ITEM):boolean=>el.id==id)
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if(index>-1){
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indexs.push(index)
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let children = list[index].children;
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if(children.length>0){
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getlist(children,sellectedsIds)
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}
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}else{
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indexs.push(0)
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}
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}
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getlist(this._list,ids.slice(0))
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return indexs;
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},
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mchange(){
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let ids = this.getDefaultIdsByindexs(this.nowValueIndex);
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this.nowValue = ids;
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/**
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* 等同v-model
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*/
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this.$emit('update:modelValue',ids.slice(0))
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/**
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* 选项变化时触发
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* @param {string[]} ids 当前选中项的id
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* @param {number[]} indexs 当前选中项的index项
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*/
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this.$emit('change',ids.slice(0),this.nowValueIndex.slice(0))
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},
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onChange(event: UniPickerViewChangeEvent){
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if(event.detail.value.length==0) return;
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let indexs = event.detail.value!;
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this.showList = this.getListByIndexs(indexs.slice(0))
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let checkIndexs = this.isDisabledIndex(indexs.slice(0),this.showList)
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if(checkIndexs.join('')!=indexs.join('')){
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indexs = checkIndexs;
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}
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this.showList = this.getListByIndexs(indexs.slice(0))
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this.$nextTick(function(){
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this.nowValueIndex = indexs
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this.mchange()
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})
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},
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getNodeInfo():Promise<boolean> {
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let t = this;
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return new Promise((res,rej)=>{
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uni.createSelectorQuery().in(this)
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.select(".xPickerView")
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.boundingClientRect().exec((ret) => {
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let nodeinfo = ret[0] as NodeInfo
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t.wrapTotalWidth = nodeinfo.width!
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t.okNodeInfo = true;
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res(true)
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})
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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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<template>
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<view class="xPickerView" >
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<view v-if="cellUnits.length>0" >
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<view v-for="(item,index) in cellUnits" :key="index" :style="{width:(_deepWidth-2)+'px',margin: '0px'}" >
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<text class="xPickerViewUnitText">{{item}}</text>
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</view>
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</view>
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<view style="display: flex ; flex-direction: row;" v-if="showList.length>0">
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<picker-view
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v-if="showView"
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:value="nowValueIndex"
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@change="onChange"
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:style="{height:(50*5)+'px',width:(this.wrapTotalWidth-2*showList.length)+'px'}"
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indicator-style="height:'50px;backgroundColor:rgba(0,0,0,0.05);border-radius:10px">
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<picker-view-column :style="{width:(_deepWidth-5)+'px',margin: '0px 2px'}" v-for="(children,parentindex) in showList" :key="parentindex">
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<view v-for="(item,index) in children"
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:key="index" class="xPickerViewWrapCoumn">
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<text class="xPickerViewWrapCoumnText"
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:style="{fontSize:_fontSize,fontWeight:nowValueIndex[parentindex]==index?'bold':'inherit',opacity: item.disabled?'0.4':'1'}">
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{{item.title}}
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</text>
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</view>
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</picker-view-column>
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</picker-view>
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</view>
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</view>
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</template>
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<style scoped>
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.xPickerView{
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display: flex;
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flex-direction: column;
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}
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/* #ifdef WEB */
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.uni-picker-view-indicator:after, .uni-picker-view-indicator:before{
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border:none;
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}
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/* #endif */
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.xPickerViewUnit {
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display: flex;
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flex-direction: row;
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justify-content: center;
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padding: 16rpx;
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}
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.xPickerViewUnitText {
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font-size: 24rpx;
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color: #888;
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font-weight: bold;
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text-align: center;
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}
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.xPickerViewWrapCoumnText {
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padding: 0 12rpx;
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line-height: 50px;
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}
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.xPickerViewWrap {
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position: relative;
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}
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.xPickerContent {
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position: absolute;
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left: 0;
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top: 0;
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width: 100%;
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z-index: 5;
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}
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.xPickerMasker {
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display: flex;
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flex-direction: row;
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align-items: center;
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justify-content: center;
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pointer-events: none;
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height: 100%;
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width: 100%;
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top: 0px;
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left: 0px;
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position: absolute;
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}
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.xPickErBar {
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background-color: #f5f5f5;
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border-radius: 20rpx;
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margin: 0 6rpx;
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flex: 1;
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}
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.xPickerContent {
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transition-duration: 350ms;
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transition-property: left, right, top, bottom;
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transition-timing-function: cubic-bezier(0, 0.55, 0.45, 1);
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}
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.xPickerViewWrapCoumn {
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display: flex;
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flex-direction: column;
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justify-content: center;
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align-items: center;
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height:50px;
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/* background-color: #f5f5f5; */
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}
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</style>
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Reference in New Issue
Block a user