78 lines
1.9 KiB
JavaScript
78 lines
1.9 KiB
JavaScript
class DPagination {
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constructor(dataName) {
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this.loading = false;
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this.finished = false;
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this.dataName = dataName;
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this.dataPath = `${dataName}`;
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this.pages = 0; //* 本地存储的实际页数
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this.length = 0; //* 本地存储的数据条数
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this.limit = 15; //* 每页显示的数量
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this.loadPage = 1; //* 每次加载累加的页数
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}
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bind(page) {
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this.PageThis = page;
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return this;
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}
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push(data) {
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const PageThis = this.PageThis["data"];
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let dataLength = Object.keys(PageThis[this.dataName]).length;
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let pageKey = "page_";
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if (dataLength > 0) {
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let lastPage = Object.values(PageThis[this.dataName]).pop();
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if (lastPage.length >= this.limit) {
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pageKey += dataLength + 1;
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} else {
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pageKey += dataLength;
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}
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} else {
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pageKey += "1";
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}
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let pagePath = `${this.dataPath}.${pageKey}`;
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const setData = {};
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if (PageThis[this.dataPath][pageKey]) {
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let lastIndex = PageThis[this.dataPath][pageKey].length;
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setData[`${pagePath}[${lastIndex}]`] = data;
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} else {
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setData[pagePath] = Array.isArray(data) ? [...data] : data;
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}
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this.PageThis.setData(setData, () => {
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this.length++;
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this.pages++;
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this.loadPage++;
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});
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return this;
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}
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removePage(pages) {
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this.PageThis.setData({
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[`${this.dataPath}.page_${pages}`]: [],
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});
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this.pages--;
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}
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removeItem(pages, index) {
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let pagePath = `${this.dataPath}.page_${pages}`;
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let pageData = this.PageThis["data"][this.dataPath]["page_" + pages];
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pageData.splice(index, 1);
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this.PageThis.setData(
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{
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[pagePath]: pageData,
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},
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() => {
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this.length--;
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}
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);
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}
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clean() {
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this.pages = 0;
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this.length = 0;
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this.loading = false;
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this.finished = false;
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this.loadPage = 1;
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this.PageThis.setData({
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[this.dataPath]: {},
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});
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}
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}
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export default DPagination;
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