// [z-paging]数据处理模块
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import u from '.././z-paging-utils'
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import c from '.././z-paging-constant'
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import Enum from '.././z-paging-enum'
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const ZPData = {
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props: {
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//自定义初始的pageNo，默认为1
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defaultPageNo: {
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type: [Number, String],
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default: u.gc('defaultPageNo', 1),
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observer: function(newVal, oldVal) {
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this.pageNo = newVal;
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},
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},
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//自定义pageSize，默认为10
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defaultPageSize: {
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type: [Number, String],
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default: u.gc('defaultPageSize', 10),
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},
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//为保证数据一致，设置当前tab切换时的标识key，并在complete中传递相同key，若二者不一致，则complete将不会生效
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dataKey: {
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type: [Number, String, Object],
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default: function() {
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return u.gc('dataKey', null);
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},
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},
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//自动注入的list名，可自动修改父view(包含ref="paging")中对应name的list值
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autowireListName: {
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type: String,
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default: function() {
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return u.gc('autowireListName', '');
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},
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},
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//自动注入的query名，可自动调用父view(包含ref="paging")中的query方法
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autowireQueryName: {
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type: String,
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default: function() {
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return u.gc('autowireQueryName', '');
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},
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},
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//z-paging mounted后自动调用reload方法(mounted后自动调用接口)，默认为是。请使用简便写法：auto
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mountedAutoCallReload: {
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type: Boolean,
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default: u.gc('mountedAutoCallReload', true)
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},
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//z-paging mounted后自动调用reload方法(mounted后自动调用接口)，默认为是
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auto: {
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type: Boolean,
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default: u.gc('auto', true)
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},
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//用户下拉刷新时是否触发reload方法，默认为是
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reloadWhenRefresh: {
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type: Boolean,
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default: u.gc('reloadWhenRefresh', true)
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},
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//reload时自动滚动到顶部，默认为是
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autoScrollToTopWhenReload: {
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type: Boolean,
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default: u.gc('autoScrollToTopWhenReload', true)
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},
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//reload时立即自动清空原list，默认为是，若立即自动清空，则在reload之后、请求回调之前页面是空白的
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autoCleanListWhenReload: {
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type: Boolean,
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default: u.gc('autoCleanListWhenReload', true)
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},
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//列表刷新时自动显示下拉刷新view，默认为否
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showRefresherWhenReload: {
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type: Boolean,
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default: u.gc('showRefresherWhenReload', false)
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},
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//列表刷新时自动显示加载更多view，且为加载中状态，默认为否
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showLoadingMoreWhenReload: {
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type: Boolean,
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default: u.gc('showLoadingMoreWhenReload', false)
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},
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//本地分页时上拉加载更多延迟时间，单位为毫秒，默认200毫秒
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localPagingLoadingTime: {
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type: [Number, String],
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default: u.gc('localPagingLoadingTime', 200)
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},
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//当分页未满一屏时，是否自动加载更多，默认为否(nvue无效)
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insideMore: {
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type: Boolean,
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default: u.gc('insideMore', false)
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},
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//使用聊天记录模式，默认为否
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useChatRecordMode: {
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type: Boolean,
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default: u.gc('useChatRecordMode', false)
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},
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//自动拼接complete中传过来的数组(使用聊天记录模式时无效)
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concat: {
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type: Boolean,
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default: u.gc('concat', true)
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},
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//父组件v-model所绑定的list的值
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value: {
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type: Array,
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default: function() {
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return [];
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}
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},
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// #ifdef VUE3
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modelValue: {
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type: Array,
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default: function() {
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return [];
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}
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}
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// #endif
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},
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data (){
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return {
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currentData: [],
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totalData: [],
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realTotalData: [],
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totalLocalPagingList: [],
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pageNo: 1,
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isLocalPaging: false,
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isAddedData: false,
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isTotalChangeFromAddData: false,
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privateConcat: true,
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myParentQuery: -1,
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firstPageLoaded: false,
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pagingLoaded: false,
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loaded: false,
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isUserReload: true,
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fromEmptyViewReload: false,
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}
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},
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computed: {
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pageSize() {
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return this.defaultPageSize;
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},
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finalConcat() {
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return this.concat && this.privateConcat;
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},
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isFirstPage() {
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return this.pageNo === this.defaultPageNo;
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}
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},
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watch: {
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totalData(newVal, oldVal) {
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this._totalDataChange(newVal, oldVal);
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},
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currentData(newVal, oldVal) {
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this._currentDataChange(newVal, oldVal);
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},
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useChatRecordMode(newVal, oldVal) {
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if (newVal) {
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this.nLoadingMoreFixedHeight = false;
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}
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},
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},
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methods: {
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//请求结束(成功或者失败)调用此方法，将请求的结果传递给z-paging处理，第一个参数为请求结果数组，第二个参数为是否成功(默认是是）
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complete(data, success = true) {
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this.customNoMore = -1;
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this.addData(data, success);
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},
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//简写，与complete完全相同
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end(data, success = true) {
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this.complete(data, success);
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},
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//【保证数据一致】请求结束(成功或者失败)调用此方法，将请求的结果传递给z-paging处理，第一个参数为请求结果数组，第二个参数为dataKey，需与:data-key绑定的一致，第三个参数为是否成功(默认为是）
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completeByKey(data, dataKey = null, success = true) {
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if (dataKey !== null && this.dataKey !== null && dataKey !== this.dataKey) {
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if (this.isFirstPage) {
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this.endRefresh();
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}
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return;
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}
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this.customNoMore = -1;
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this.addData(data, success);
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},
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//简写，与completeByKey完全相同
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endByKey(data, dataKey = null, success = true) {
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this.completeByKey(data, dataKey, success);
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},
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//【通过totalCount判断是否有更多数据】请求结束(成功或者失败)调用此方法，将请求的结果传递给z-paging处理，第一个参数为请求结果数组，第二个参数为totalCount(列表总数)，第三个参数为是否成功(默认为是）
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completeByTotalCount(data, totalCount, success = true) {
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if (totalCount == 'undefined') {
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this.customNoMore = -1;
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} else {
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let dataTypeRes = this._checkDataType(data, success, false);
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data = dataTypeRes.data;
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success = dataTypeRes.success;
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if (totalCount >= 0 && success) {
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this.$nextTick(() => {
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let nomore = true;
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let realTotalDataCount = this.realTotalData.length;
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if (this.pageNo == this.defaultPageNo) {
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realTotalDataCount = 0;
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}
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let exceedCount = realTotalDataCount + data.length - totalCount;
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if (exceedCount >= 0) {
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nomore = false;
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exceedCount = this.defaultPageSize - exceedCount;
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if (exceedCount > 0 && exceedCount < data.length) {
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data = data.splice(0, exceedCount);
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}
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}
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this.completeByNoMore(data, nomore, success);
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})
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return;
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}
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}
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this.addData(data, success);
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},
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//简写，与completeByTotalCount完全相同
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completeByTotal(data, totalCount, success = true) {
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this.completeByTotalCount(data, totalCount, success);
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},
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//简写，与completeByTotalCount完全相同
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endByTotalCount(data, totalCount, success = true) {
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this.completeByTotalCount(data, totalCount, success);
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},
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//简写，与completeByTotalCount完全相同
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endByTotal(data, totalCount, success = true) {
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this.completeByTotalCount(data, totalCount, success);
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},
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//【自行判断是否有更多数据】请求结束(成功或者失败)调用此方法，将请求的结果传递给z-paging处理，第一个参数为请求结果数组，第二个参数为是否有更多数据，第三个参数为是否成功(默认是是）
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completeByNoMore(data, nomore, success = true) {
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if (nomore != 'undefined') {
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this.customNoMore = nomore == true ? 1 : 0;
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}
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this.addData(data, success);
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},
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//简写，与completeByNoMore完全相同
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endByNoMore(data, nomore, success = true) {
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this.completeByNoMore(data, nomore, success);
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},
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//与上方complete方法功能一致，新版本中设置服务端回调数组请使用complete方法
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addData(data, success = true) {
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if (!this.fromCompleteEmit) {
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this.disabledCompleteEmit = true;
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this.fromCompleteEmit = false;
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}
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const currentTimeStamp = u.getTime();
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let addDataDalay = 0;
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const disTime = currentTimeStamp - this.requestTimeStamp;
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let minDelay = this.minDelay;
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if(this.isFirstPage && this.finalShowRefresherWhenReload){
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minDelay = Math.max(400,minDelay);
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}
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if(this.requestTimeStamp > 0 && disTime < minDelay){
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addDataDalay = minDelay - disTime;
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}
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this.$nextTick(() => {
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let delay = this.delay > 0 ? this.delay : addDataDalay;
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setTimeout(() => {
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this._addData(data, success, false);
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}, delay)
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})
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},
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//从顶部添加数据，不会影响分页的pageNo和pageSize
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addDataFromTop(data, toTop = true, toTopWithAnimate = true) {
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let dataType = Object.prototype.toString.call(data);
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if (dataType !== '[object Array]') {
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data = [data];
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}
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this.totalData = [...data, ...this.totalData];
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if (toTop) {
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setTimeout(() => {
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this._scrollToTop(toTopWithAnimate);
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}, c.delayTime)
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}
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},
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//重新设置列表数据，调用此方法不会影响pageNo和pageSize，也不会触发请求。适用场景：当需要删除列表中某一项时，将删除对应项后的数组通过此方法传递给z-paging。(当出现类似的需要修改列表数组的场景时，请使用此方法，请勿直接修改page中:list.sync绑定的数组)
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resetTotalData(data) {
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if (data == undefined) {
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if (this.showConsoleError) {
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u.consoleErr('方法resetTotalData参数缺失！');
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}
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return;
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}
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this.isTotalChangeFromAddData = true;
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let dataType = Object.prototype.toString.call(data);
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if (dataType !== '[object Array]') {
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data = [data];
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}
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this.totalData = data;
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},
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//添加聊天记录
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addChatRecordData(data, toBottom = true, toBottomWithAnimate = true) {
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let dataType = Object.prototype.toString.call(data);
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if (dataType !== '[object Array]') {
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data = [data];
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}
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if (!this.useChatRecordMode) return;
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this.isTotalChangeFromAddData = true;
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//#ifndef APP-NVUE
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this.totalData = [...this.totalData, ...data];
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//#endif
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//#ifdef APP-NVUE
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this.totalData = this.nIsFirstPageAndNoMore ? [...this.totalData, ...data] : [...data, ...this.totalData];
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//#endif
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if (toBottom) {
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setTimeout(() => {
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//#ifndef APP-NVUE
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this._scrollToBottom(toBottomWithAnimate);
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//#endif
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//#ifdef APP-NVUE
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if (this.nIsFirstPageAndNoMore) {
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this._scrollToBottom(toBottomWithAnimate);
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} else {
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this._scrollToTop(toBottomWithAnimate);
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}
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//#endif
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}, c.delayTime)
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}
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},
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//设置本地分页数据，请求结束(成功或者失败)调用此方法，将请求的结果传递给z-paging作分页处理（若调用了此方法，则上拉加载更多时内部会自动分页，不会触发@query所绑定的事件）
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setLocalPaging(data, success = true) {
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this.isLocalPaging = true;
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this.$nextTick(() => {
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this._addData(data, success, true);
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})
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},
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//重新加载分页数据，pageNo会恢复为默认值，相当于下拉刷新的效果(animate为true时会展示下拉刷新动画，默认为false)
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reload(animate = this.showRefresherWhenReload) {
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if (animate) {
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this.privateShowRefresherWhenReload = animate;
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this.isUserPullDown = true;
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}
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this._preReload(animate, false);
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},
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//刷新列表数据，pageNo和pageSize不会重置，列表数据会重新从服务端获取。必须保证@query绑定的方法中的pageNo和pageSize和传给服务端的一致
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refresh() {
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if(!this.realTotalData.length){
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this.reload();
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return;
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}
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const disPageNo = this.pageNo - this.defaultPageNo + 1;
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if (disPageNo >= 1) {
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this.loading = true;
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this.privateConcat = false;
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const totalPageSize = disPageNo * this.pageSize;
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this._emitQuery(this.defaultPageNo, totalPageSize, Enum.QueryFrom.Refresh);
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this._callMyParentQuery(this.defaultPageNo, totalPageSize);
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}
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},
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//清空分页数据
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clean() {
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this._reload(true);
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this._addData([], true, false);
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},
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//清空分页数据
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clear() {
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this.clean();
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},
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//手动触发滚动到顶部加载更多，聊天记录模式时有效
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doChatRecordLoadMore() {
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this.useChatRecordMode && this._onLoadingMore('click');
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},
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//reload之前的一些处理
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_preReload(animate = this.showRefresherWhenReload, isFromMounted = true) {
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this.isUserReload = true;
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this.loadingType = Enum.LoadingType.Refresher
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if (animate) {
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this.privateShowRefresherWhenReload = animate;
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// #ifndef APP-NVUE
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if (this.useCustomRefresher) {
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this._doRefresherRefreshAnimate();
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} else {
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this.refresherTriggered = true;
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}
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// #endif
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// #ifdef APP-NVUE
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this.refresherStatus = Enum.Refresher.Loading;
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this.refresherRevealStackCount++;
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setTimeout(() => {
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this._getNodeClientRect('zp-n-refresh-container', false).then((node) => {
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if (node) {
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let nodeHeight = node[0].height;
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this.nShowRefresherReveal = true;
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this.nShowRefresherRevealHeight = nodeHeight;
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setTimeout(() => {
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this._nDoRefresherEndAnimation(0, -nodeHeight, false, false);
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setTimeout(() => {
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this._nDoRefresherEndAnimation(nodeHeight, 0);
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}, 10)
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}, 10)
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}
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this._reload(false, isFromMounted);
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this._doRefresherLoad(false);
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});
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}, 10)
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return;
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// #endif
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} else {
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this._refresherEnd(false, false, false, false);
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}
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this._reload(false, isFromMounted);
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},
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//重新加载分页数据
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_reload(isClean = false, isFromMounted = false, isUserPullDown = false) {
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this.isAddedData = false;
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this.cacheScrollNodeHeight = -1;
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this.insideOfPaging = -1;
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this.pageNo = this.defaultPageNo;
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this._cleanRefresherEndTimeout();
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!this.privateShowRefresherWhenReload && !isClean && this._startLoading(true);
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this.firstPageLoaded = true;
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this.isTotalChangeFromAddData = false;
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this.totalData = [];
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if (!isClean) {
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this._emitQuery(this.pageNo, this.defaultPageSize, isUserPullDown ? Enum.QueryFrom.UserPullDown : Enum.QueryFrom.Reload);
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let delay = 0;
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// #ifdef MP-TOUTIAO
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delay = 5;
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// #endif
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setTimeout(() => {
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this._callMyParentQuery();
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}, delay)
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if (!isFromMounted && this.autoScrollToTopWhenReload) {
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let checkedNRefresherLoading = true;
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// #ifdef APP-NVUE
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checkedNRefresherLoading = !this.nRefresherLoading;
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// #endif
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if (checkedNRefresherLoading) {
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this._scrollToTop(false);
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}
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}
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// #ifndef APP-NVUE
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if (!this.usePageScroll && this.useChatRecordMode) {
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if (this.showConsoleError) {
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u.consoleWarn('使用聊天记录模式时，建议使用页面滚动，可将usePageScroll设置为true以启用页面滚动！！');
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}
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}
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// #endif
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}
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this.$nextTick(() => {
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// #ifdef APP-NVUE
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this.nShowBottom = this.realTotalData.length > 0;
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// #endif
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})
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},
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//处理服务端返回的数组
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_addData(data, success, isLocal) {
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this.isAddedData = true;
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this.fromEmptyViewReload = false;
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this.isTotalChangeFromAddData = true;
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this.refresherTriggered = false;
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!this.useCustomRefresher && uni.stopPullDownRefresh();
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// #ifdef APP-NVUE
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this.usePageScroll && uni.stopPullDownRefresh();
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// #endif
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const tempIsUserPullDown = this.isUserPullDown;
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if (this.showRefresherUpdateTime && this.isFirstPage) {
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u.setRefesrherTime(u.getTime(), this.refresherUpdateTimeKey);
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this.tempLanguageUpdateKey = u.getTime();
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this.$refs.refresh && this.$refs.refresh.updateTime();
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}
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if (tempIsUserPullDown && this.isFirstPage) {
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this.isUserPullDown = false;
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}
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let dataTypeRes = this._checkDataType(data, success, isLocal);
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data = dataTypeRes.data;
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success = dataTypeRes.success;
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let delayTime = c.delayTime;
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let shouldEndLoadingDelay = true;
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// #ifdef APP-NVUE
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if (this.useChatRecordMode) {
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delayTime = 0
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}
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shouldEndLoadingDelay = false;
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// #endif
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this.loadingForNow = false;
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setTimeout(() => {
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this.pagingLoaded = true;
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this.$nextTick(()=>{
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this._refresherEnd(shouldEndLoadingDelay, true, tempIsUserPullDown);
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})
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}, delayTime)
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if (this.isFirstPage) {
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this.isLoadFailed = !success;
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}
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if (success) {
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if (!(this.privateConcat === false && this.loadingStatus === Enum.More.NoMore)) {
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this.loadingStatus = Enum.More.Default;
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}
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if (isLocal) {
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this.totalLocalPagingList = data;
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this._localPagingQueryList(this.defaultPageNo, this.defaultPageSize, 0, (res) => {
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this.complete(res);
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})
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} else {
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let dataChangeDelayTime = 0;
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// #ifdef APP-NVUE
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if (this.privateShowRefresherWhenReload && this.finalNvueListIs === 'waterfall') {
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dataChangeDelayTime = 150;
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}
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// #endif
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setTimeout(() => {
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this._currentDataChange(data, this.currentData);
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}, dataChangeDelayTime)
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}
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} else {
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this._currentDataChange(data, this.currentData);
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this.loadingStatus = Enum.More.Fail;
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if (this.loadingType === Enum.LoadingType.LoadingMore) {
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this.pageNo--;
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}
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}
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},
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//所有数据改变时调用
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_totalDataChange(newVal, oldVal, eventThrow=true) {
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if ((!this.isUserReload || !this.autoCleanListWhenReload) && this.firstPageLoaded && !newVal.length && oldVal.length) {
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return;
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}
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this._doCheckScrollViewShouldFullHeight(newVal);
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if(!this.realTotalData.length && !newVal.length){
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eventThrow = false;
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}
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this.realTotalData = newVal;
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if (eventThrow) {
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this.$emit('input', newVal);
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// #ifdef VUE3
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this.$emit('update:modelValue', newVal);
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// #endif
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this.$emit('update:list', newVal);
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this.$emit('listChange', newVal);
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this._callMyParentList(newVal);
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}
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this.firstPageLoaded = false;
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this.isTotalChangeFromAddData = false;
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this.$nextTick(() => {
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setTimeout(()=>{
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this._getNodeClientRect('.zp-paging-container-content').then((res) => {
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if (res) {
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this.$emit('contentHeightChanged', res[0].height);
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}
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});
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},this.isIos?100:300)
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// #ifdef APP-NVUE
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if (this.useChatRecordMode && this.nIsFirstPageAndNoMore && this.isFirstPage && !this.nFirstPageAndNoMoreChecked) {
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this.nFirstPageAndNoMoreChecked = true;
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this._scrollToBottom(false);
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}
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// #endif
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})
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},
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//当前数据改变时调用
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_currentDataChange(newVal, oldVal) {
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newVal = [...newVal];
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// #ifndef APP-NVUE
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this.useChatRecordMode && newVal.reverse();
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// #endif
|
if (this.isFirstPage && this.finalConcat) {
|
this.totalData = [];
|
}
|
if (this.customNoMore !== -1) {
|
if (this.customNoMore === 0 || !newVal.length) {
|
this.loadingStatus = Enum.More.NoMore;
|
}
|
} else {
|
if (!newVal.length || (newVal.length && newVal.length < this.defaultPageSize)) {
|
this.loadingStatus = Enum.More.NoMore;
|
}
|
}
|
if (!this.totalData.length) {
|
if (this.finalConcat) {
|
// #ifdef APP-NVUE
|
if(this.useChatRecordMode && this.isFirstPage && this.loadingStatus === Enum.More.NoMore){
|
newVal.reverse();
|
}
|
// #endif
|
this.totalData = newVal;
|
}
|
if (this.useChatRecordMode) {
|
// #ifndef APP-NVUE
|
this.$nextTick(() => {
|
this._scrollToBottom(false);
|
})
|
// #endif
|
}
|
} else {
|
if (this.useChatRecordMode) {
|
// #ifdef APP-NVUE
|
this.totalData = [...this.totalData, ...newVal];
|
// #endif
|
//#ifndef APP-NVUE
|
const idIndex = newVal.length;
|
let idIndexStr = `z-paging-${idIndex}`;
|
this.totalData = [...newVal, ...this.totalData];
|
if (this.pageNo !== this.defaultPageNo) {
|
this.privateScrollWithAnimation = 0;
|
let delayTime = 200;
|
this.$emit('update:chatIndex', idIndex);
|
setTimeout(() => {
|
this._scrollIntoView(idIndexStr, 30 + this.cacheTopHeight, false, () => {
|
this.$emit('update:chatIndex', 0);
|
});
|
}, this.usePageScroll ? 0 : delayTime)
|
} else {
|
this.$nextTick(() => {
|
this._scrollToBottom(false);
|
})
|
}
|
//#endif
|
|
} else {
|
if (this.finalConcat) {
|
this.totalData = [...this.totalData, ...newVal];
|
// #ifdef MP-WEIXIN
|
if (!this.isIos && !this.refresherOnly && !this.usePageScroll && newVal.length) {
|
this.loadingMoreTimeStamp = u.getTime();
|
const currentScrollTop = this.oldScrollTop;
|
this.scrollToY(currentScrollTop);
|
}
|
// #endif
|
} else {
|
this.totalData = [...newVal];
|
}
|
}
|
}
|
this.privateConcat = true;
|
},
|
//本地分页请求
|
_localPagingQueryList(pageNo, pageSize, localPagingLoadingTime, callback) {
|
pageNo = parseInt(pageNo);
|
pageSize = parseInt(pageSize);
|
if (pageNo < 0 || pageSize <= 0) {
|
callQueryResult(callback, []);
|
return;
|
}
|
pageNo = Math.max(1,pageNo);
|
let totalPagingList = [...this.totalLocalPagingList];
|
let pageNoIndex = (pageNo - 1) * pageSize;
|
if (pageNoIndex + pageSize <= totalPagingList.length) {
|
this._localPagingQueryResult(callback, totalPagingList.splice(pageNoIndex, pageSize), localPagingLoadingTime);
|
} else if (pageNoIndex < totalPagingList.length) {
|
this._localPagingQueryResult(callback, totalPagingList.splice(pageNoIndex, totalPagingList.length - pageNoIndex), localPagingLoadingTime);
|
} else {
|
this._localPagingQueryResult(callback, [], localPagingLoadingTime);
|
}
|
},
|
//本地分页请求回调
|
_localPagingQueryResult(callback, arg, localPagingLoadingTime) {
|
setTimeout(() => {
|
callback(arg);
|
}, localPagingLoadingTime)
|
},
|
//修改父view的list
|
_callMyParentList(newVal) {
|
if (this.autowireListName.length) {
|
const myParent = u.getParent(this.$parent);
|
if (myParent && myParent[this.autowireListName]) {
|
myParent[this.autowireListName] = newVal;
|
}
|
}
|
},
|
//调用父view的query
|
_callMyParentQuery(customPageNo = 0, customPageSize = 0) {
|
if (this.autowireQueryName) {
|
if (this.myParentQuery === -1) {
|
const myParent = u.getParent(this.$parent);
|
if (myParent && myParent[this.autowireQueryName]) {
|
this.myParentQuery = myParent[this.autowireQueryName];
|
}
|
}
|
if (this.myParentQuery !== -1) {
|
if (customPageSize > 0) {
|
this.myParentQuery(customPageNo, customPageSize);
|
} else {
|
this.myParentQuery(this.pageNo, this.defaultPageSize);
|
}
|
}
|
}
|
},
|
//发射query事件
|
_emitQuery(pageNo,pageSize,from){
|
this.requestTimeStamp = u.getTime();
|
this.$emit('query',pageNo,pageSize,from);
|
},
|
//检查complete data的类型
|
_checkDataType(data, success, isLocal) {
|
const dataType = Object.prototype.toString.call(data);
|
if (dataType === '[object Boolean]') {
|
success = data;
|
data = [];
|
} else if (dataType !== '[object Array]') {
|
data = [];
|
let methodStr = isLocal ? 'setLocalPaging' : 'complete';
|
if (dataType !== '[object Undefined]') {
|
if (this.showConsoleError) {
|
u.consoleErr(`${methodStr}参数类型不正确，第一个参数类型必须为Array!`);
|
}
|
}
|
}
|
return {data,success};
|
},
|
}
|
}
|
|
export default ZPData;
|
