import { HttpEvent } from '@angular/common/http';
import { UploadXHRArgs, UploadFile } from 'ng-zorro-antd';
import { NgxExcelSelectOption, NgxExcelUploadFile } from '../models/models';
import { Observable } from 'rxjs';
export interface NgxExcelUploadService {
    getThumbUrl: (file: NgxExcelUploadFile) => string;
    getPreviewUrl: (file: NgxExcelUploadFile) => string;
    getDownloadUrl: (file: NgxExcelUploadFile) => string;
    upload: (uploadXHRArgs: UploadXHRArgs) => Observable<HttpEvent<{}>>;
    remove: (file: UploadFile) => Observable<NgxExcelUploadFile>;
}
export declare abstract class NgxExcelHelper {
    protected selectGroups: {
        [name: string]: NgxExcelSelectOption[];
    };
    getSelectOptions(name: string): NgxExcelSelectOption[];
    /**
     * 判断是否具备调用权限
     * @param node 待判断的权限节点
     * @param resourceId 资源主键
     * @param extraRules 扩展的资源规则
     */
    abstract can(node: string, resourceId?: string, extraRules?: any): boolean;
    /**
     * 获得数据上传服务
     * @param payload 额外的上传参数
     */
    abstract getUploadService(payload: {
        [name: string]: string | Blob;
    }): NgxExcelUploadService;
}