Sinopec-Anxin/src/app/pages/plan-admin/oil-station-list/oil-station-list.component.ts

import { Component, OnInit, ViewChild, ElementRef } from '@angular/core';
import { HttpClient } from '@angular/common/http';
import { TreeService } from 'src/app/service/tree.service';
import { FormBuilder, FormGroup, Validators } from '@angular/forms';
import { NzContextMenuService, NzDropdownMenuComponent } from 'ng-zorro-antd/dropdown';
import { NzFormatEmitEvent, NzTreeComponent, NzTreeNode } from 'ng-zorro-antd/tree';
import { Router } from '@angular/router';
import { NavChangeService } from 'src/app/service/navChange.service';
import { fromEvent } from 'rxjs';
import { debounceTime } from 'rxjs/operators';

@Component({
  selector: 'app-oil-station-list',
  templateUrl: './oil-station-list.component.html',
  styleUrls: ['./oil-station-list.component.scss']
})
export class OilStationListComponent implements OnInit {
  validateForm!: FormGroup;
  constructor(private element: ElementRef, private navChangeService: NavChangeService, private http: HttpClient, private toTree: TreeService, private fb: FormBuilder, private nzContextMenuService: NzContextMenuService, private router: Router) { }

  tableScrollHeight
  resizeListener
  ngOnInit(): void {
    this.tableScrollHeight = (document.getElementById('tablebox').clientHeight - 42) + 'px'

    console.log('tableScrollHeight', this.tableScrollHeight)
    // 页面监听
    this.resizeListener = fromEvent(window, 'resize').pipe(debounceTime(100)).subscribe((event) => {
      this.tableScrollHeight = (document.getElementById('tablebox').clientHeight - 42) + 'px'
    });
    this.validateForm = this.fb.group({
      name: [null]
    });

    this.tableSpin = true
  }
  ngOnDestroy(): void {
    this.resizeListener.unsubscribe()
  }
  ngAfterViewInit(): void {
    fromEvent(this.element.nativeElement.querySelector(`.ant-table-body`) as HTMLCanvasElement, 'scroll').pipe(debounceTime(100)).subscribe(async (event: any) => { //监听 DOM 滚动事件
      if (event.target.scrollHeight - (event.target.scrollTop + event.target.clientHeight) <= 10) {
        if (this.totalCount > this.list.length) {
          console.log('需要加载数据了', event)
          this.SkipCount = String(Number(this.SkipCount) + 50)
          await this.getGasStation()
        }
      }
    });
  }

  submitForm(): void {
    for (const i in this.validateForm.controls) {
      this.validateForm.controls[i].markAsDirty();
      this.validateForm.controls[i].updateValueAndValidity();
    }
    this.list = []
    this.SkipCount = '0'
    this.getGasStation()
  }
  resetForm(e: MouseEvent): void {
    e.preventDefault();
    this.validateForm.reset();
    for (const key in this.validateForm.controls) {
      this.validateForm.controls[key].markAsPristine();
      this.validateForm.controls[key].updateValueAndValidity();
    }
    this.list = []
    this.SkipCount = '0'
    this.getGasStation()
  }



  look(item) {
    let gastionobj = {
      organization: {
        displayName: item.stationName,
        isGasStation: true,
        id: item.organizationUnitId
      }
    }
    sessionStorage.setItem('userdataOfgasstation', JSON.stringify(gastionobj))
    this.router.navigate(['/todaywarning/petrolStation'])
    let obj = {
      name: 'oilstation'
    }
    this.navChangeService.sendMessage(obj);//发布一条消息
  }

  tableSpin: boolean
  totalCount: any //总数
  //获取点击组织机构的所有加油站
  SkipCount: string = '0'
  MaxResultCount: string = '100'

  orId
  list: any = []
  async getGasStation() {
    let params = {
      StationName: this.validateForm.value.name,
      OrganizationUnitId: String(sessionStorage.getItem('planAdminOrid')),
      IsContainsChildren: 'true',
      SkipCount: this.SkipCount,
      MaxResultCount: this.MaxResultCount,
      Sorting: ' BuildingBasicInfo.Id asc'
    }
    this.tableSpin = true
    await new Promise((resolve, reject) => {
      this.http.get('/api/services/app/GasStation/GetAll', {
        params: params
      }).subscribe((data: any) => {
        this.totalCount = data.result.totalCount
        this.list = this.list.concat(data.result.items);
        this.list = [...this.list]
        this.tableSpin = false
        resolve(data)
      })
    })
  }

  //父组件调用子组件方法
  public onChildMethod() {
    this.getGasStation()
  }
}