@lxlib/seed
Version:
This library was generated with [Angular CLI](https://github.com/angular/angular-cli) version 9.1.1.
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JavaScript
/**
* @fileoverview added by tsickle
* Generated from: xlsx.service.ts
* @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
*/
import { HttpClient } from '@angular/common/http';
import { Injectable } from '@angular/core';
import { LazyService } from '@lxlib/util';
import { saveAs } from 'file-saver';
import { XlsxConfig } from './xlsx.config';
import * as i0 from "@angular/core";
import * as i1 from "./xlsx.config";
import * as i2 from "@angular/common/http";
import * as i3 from "@lxlib/util";
export class XlsxService {
/**
* @param {?} cog
* @param {?} http
* @param {?} lazy
*/
constructor(cog, http, lazy) {
this.cog = cog;
this.http = http;
this.lazy = lazy;
}
/**
* @private
* @return {?}
*/
init() {
return typeof XLSX !== 'undefined' ? Promise.resolve([]) : this.lazy.load([(/** @type {?} */ (this.cog.url))].concat((/** @type {?} */ (this.cog.modules))));
}
/**
* @private
* @param {?} wb
* @return {?}
*/
read(wb) {
/** @type {?} */
const ret = {};
wb.SheetNames.forEach((/**
* @param {?} name
* @return {?}
*/
(name) => {
/** @type {?} */
const sheet = wb.Sheets[name];
ret[name] = XLSX.utils.sheet_to_json(sheet, { header: 1 });
}));
return ret;
}
/**
* 导入Excel并输出JSON,支持 `<input type="file">`、URL 形式
* @param {?} fileOrUrl
* @param {?=} rABS 加载数据方式 `readAsBinaryString` (默认) 或 `readAsArrayBuffer`,[更多细节](http://t.cn/R3n63A0)
* @return {?}
*/
import(fileOrUrl, rABS = 'readAsBinaryString') {
return new Promise((/**
* @param {?} resolve
* @param {?} reject
* @return {?}
*/
(resolve, reject) => {
this.init()
.then((/**
* @return {?}
*/
() => {
// from url
if (typeof fileOrUrl === 'string') {
this.http.request('GET', fileOrUrl, { responseType: 'arraybuffer' }).subscribe((/**
* @param {?} res
* @return {?}
*/
(res) => {
/** @type {?} */
const wb = XLSX.read(new Uint8Array(res), { type: 'array' });
resolve(this.read(wb));
}), (/**
* @param {?} err
* @return {?}
*/
(err) => {
reject(err);
}));
return;
}
// from file
/** @type {?} */
const reader = new FileReader();
reader.onload = (/**
* @param {?} e
* @return {?}
*/
(e) => {
/** @type {?} */
const wb = XLSX.read(e.target.result, { type: 'binary' });
resolve(this.read(wb));
});
reader[rABS](fileOrUrl);
}))
.catch((/**
* @return {?}
*/
() => reject(`Unable to load xlsx.js`)));
}));
}
/**
* 导出
* @param {?} options
* @return {?}
*/
export(options) {
return this.init().then((/**
* @return {?}
*/
() => {
/** @type {?} */
const wb = XLSX.utils.book_new();
if (Array.isArray(options.sheets)) {
((/** @type {?} */ (options.sheets))).forEach((/**
* @param {?} value
* @param {?} index
* @return {?}
*/
(value, index) => {
/** @type {?} */
const ws = XLSX.utils.aoa_to_sheet(value.data);
XLSX.utils.book_append_sheet(wb, ws, value.name || `Sheet${index + 1}`);
}));
}
else {
wb.SheetNames = Object.keys(options.sheets);
wb.Sheets = options.sheets;
}
if (options.callback)
options.callback(wb);
/** @type {?} */
const wbout = XLSX.write(wb, Object.assign({ bookType: 'xlsx', bookSST: false, type: 'array' }, options.opts));
saveAs(new Blob([wbout], { type: 'application/octet-stream' }), options.filename || 'export.xlsx');
}));
}
}
XlsxService.decorators = [
{ type: Injectable, args: [{ providedIn: 'root' },] }
];
/** @nocollapse */
XlsxService.ctorParameters = () => [
{ type: XlsxConfig },
{ type: HttpClient },
{ type: LazyService }
];
/** @nocollapse */ XlsxService.ɵprov = i0.ɵɵdefineInjectable({ factory: function XlsxService_Factory() { return new XlsxService(i0.ɵɵinject(i1.XlsxConfig), i0.ɵɵinject(i2.HttpClient), i0.ɵɵinject(i3.LazyService)); }, token: XlsxService, providedIn: "root" });
if (false) {
/**
* @type {?}
* @private
*/
XlsxService.prototype.cog;
/**
* @type {?}
* @private
*/
XlsxService.prototype.http;
/**
* @type {?}
* @private
*/
XlsxService.prototype.lazy;
}
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Promise.resolve([]) : this.lazy.load([this.cog.url!].concat(this.cog.modules!));\n  }\n\n  private read(wb: NzSafeAny): { [key: string]: NzSafeAny[][] } {\n    const ret: NzSafeAny = {};\n    wb.SheetNames.forEach((name: string) => {\n      const sheet: NzSafeAny = wb.Sheets[name];\n      ret[name] = XLSX.utils.sheet_to_json(sheet, { header: 1 });\n    });\n    return ret;\n  }\n\n  /**\n   * 导入Excel并输出JSON，支持 `<input type=\"file\">`、URL 形式\n   * @param rABS 加载数据方式 `readAsBinaryString` （默认） 或 `readAsArrayBuffer`，[更多细节](http://t.cn/R3n63A0)\n   */\n  import(\n    fileOrUrl: File | string,\n    rABS: 'readAsBinaryString' | 'readAsArrayBuffer' = 'readAsBinaryString',\n  ): Promise<{ [key: string]: any[][] }> {\n    return new Promise<{ [key: string]: any[][] }>((resolve, reject) => {\n      this.init()\n        .then(() => {\n          // from url\n          if (typeof fileOrUrl === 'string') {\n            this.http.request('GET', fileOrUrl, { responseType: 'arraybuffer' }).subscribe(\n              (res: ArrayBuffer) => {\n                const wb = XLSX.read(new Uint8Array(res), { type: 'array' });\n                resolve(this.read(wb));\n              },\n              (err: any) => {\n                reject(err);\n              },\n            );\n            return;\n          }\n          // from file\n          const reader: FileReader = new FileReader();\n          reader.onload = (e: any) => {\n            const wb: any = XLSX.read(e.target.result, { type: 'binary' });\n            resolve(this.read(wb));\n          };\n          reader[rABS](fileOrUrl);\n        })\n        .catch(() => reject(`Unable to load xlsx.js`));\n    });\n  }\n\n  /** 导出 */\n  export(options: XlsxExportOptions): Promise<void> {\n    return this.init().then(() => {\n      const wb: any = XLSX.utils.book_new();\n      if (Array.isArray(options.sheets)) {\n        (options.sheets as XlsxExportSheet[]).forEach((value: XlsxExportSheet, index: number) => {\n          const ws: any = XLSX.utils.aoa_to_sheet(value.data);\n          XLSX.utils.book_append_sheet(wb, ws, value.name || `Sheet${index + 1}`);\n        });\n      } else {\n        wb.SheetNames = Object.keys(options.sheets);\n        wb.Sheets = options.sheets;\n      }\n\n      if (options.callback) options.callback(wb);\n\n      const wbout: ArrayBuffer = XLSX.write(wb, {\n        bookType: 'xlsx',\n        bookSST: false,\n        type: 'array',\n        ...options.opts,\n      });\n      saveAs(new Blob([wbout], { type: 'application/octet-stream' }), options.filename || 'export.xlsx');\n    });\n  }\n}\n"]}