airport-chengdu-web/src/app/pages/basic-data/city/city.component.ts

import { Component, OnInit } from '@angular/core';
import { ChangeDetectorRef } from '@angular/core';
import { BasicDataService } from '../../basic-data-service';
import * as $ from 'jquery';
@Component({
    selector: 'app-city',
    templateUrl: './city.component.html',
    styleUrls: ['./city.component.scss']
})
export class CityComponent implements OnInit {

    constructor(
        private basicDataService: BasicDataService,
        private changeDetectorRef: ChangeDetectorRef
    ) { }

    public col_lists = [
        { col_code: 'cityCode', col_chn: '城市代码' },
        { col_code: 'cityNameChn', col_chn: '城市中文名' },
        { col_code: 'cityNameEng', col_chn: '城市英文名' },
        { col_code: 'countryNameChn', col_chn: '所在国家' },
    ];

    // 搜索条件
    SEARCH = '';    //手动输入条件
    FLT_POS = 1;    //过滤还是定位
    SEL_COL = '';   //选择列名

    //下拉框
    public filterItems = {
        countryId: '',
    }

    countrys: Array<any>; //国家
    citys: Array<any>;
    public row_state: any = { renderFlight: {} };
    public render_data: Array<object> = [];  //显示数据，即需要显示的数据

    ngOnInit() {
        this.countrys = this.basicDataService.country;
        this.citys = this.basicDataService.city;
        this.render_data = this.basicDataService.city;
        this.basicDataService.city_subject.subscribe(
            data => {
                this.citys = data;
                this.render_data = data;
            }
        )
        this.basicDataService.country_subject.subscribe(
            data => {
                this.countrys = data
                if(this.countrys && this.countrys.length > 0){//国家列表数据转换
                    this.basicDataTransHandle();
                }
            }
        )
        if(this.render_data){
            //国家列表数据转换
            this.basicDataTransHandle();
        }
        /**
         * 固定表头
         */
        var tableCont = document.querySelector('#table-container');
        function scrollHandle() {
            var scrollTop = this.scrollTop;
            this.querySelector('thead').style.transform = 'translateY(' + scrollTop + 'px)';
        }
        tableCont.addEventListener('scroll', scrollHandle);
    }

     //国家数据转换处理
     basicDataTransHandle() {
        this.render_data.forEach(item => {
            let countryLinkIndex = this.countrys.findIndex(val => val.countryId === item['countryId']);
            if(this.countrys[countryLinkIndex]){
                item['countryNameChn'] = this.countrys[countryLinkIndex].countryNameChn;
            }
        })
    }
    /**
     * 选中某行
     * @param i 
     */
    selectRow(i) {
        this.row_state = i;
    }

    //输入框回车事件
    inputEnter() {
        if (this.FLT_POS === 1) {
            this.selectChange()
        } else {
            this.inputPosition(this.render_data)
        }
    }

    //下拉框选择筛选
    selectChange() {
        this.render_data = this.citys.filter(item => {
            let is_satis = true;
            for (const key in this.filterItems) {
                if (this.filterItems.hasOwnProperty(key) && this.filterItems[key]) {
                    if (item[key] == this.filterItems[key]) {
                        is_satis = true;
                        continue;
                    } else {
                        is_satis = false;
                        break;
                    }
                }
            }
            return is_satis;
        })
        if (this.FLT_POS === 1) {
            this.inputFilter(this.render_data);
        } else {
            this.row_state = this.render_data.length > 0 ? this.render_data[0] : { renderFlight: {} };
        }
    }

    //输入框筛选
    inputFilter(filterData) {
        if (this.SEARCH) {
            if (this.SEL_COL) {
                let sel_col = this.SEL_COL;
                this.render_data = filterData.filter(item => {
                    if (item[sel_col]) {
                        if (item[sel_col].toString().match(new RegExp(this.SEARCH, 'i'))) {
                            return true;
                        }
                    } else {
                        return false;
                    }
                })

            } else {
                this.render_data = filterData.filter(item => {
                    let is_satis = false;
                    let cols = this.col_lists;
                    for (let i = 0; i < cols.length; i++) {
                        if (item[cols[i].col_code]) {
                            if (item[cols[i].col_code].toString().match(new RegExp(this.SEARCH, 'i'))) {
                                is_satis = true;
                                break;
                            } else {
                                is_satis = false;
                                continue;
                            }
                        } else {
                            is_satis = false;
                            continue;
                        }
                    }
                    return is_satis;
                })
            }
        } else {
            this.render_data = filterData;
        }
    }

    positionArray: Array<any> = [];
    positionArrayIndex: number = 0;
    //输入框定位
    inputPosition(filterData) {
        let transArray = []
        if (this.SEL_COL) {
            let sel_col = this.SEL_COL;
            filterData.forEach(element => {
                if (element[sel_col]) {
                    if (element[sel_col].toString().match(new RegExp(this.SEARCH, 'i'))) {
                        transArray.push(element)
                    }
                } else {
                    if (!this.SEARCH) {
                        transArray.push(element)
                    }
                }
            });
        } else {
            filterData.forEach(element => {
                let cols = this.col_lists;
                for (let i = 0; i < cols.length; i++) {
                    if (element[cols[i].col_code]) {
                        if (element[cols[i].col_code].toString().match(new RegExp(this.SEARCH, 'i'))) {
                            transArray.push(element)
                            break;
                        } else {
                            continue;
                        }
                    } else {
                        if (this.SEARCH) {
                            continue;
                        } else {
                            transArray.push(element)
                            break;
                        }
                    }
                }
            });
        }

        if (transArray.length > 0) {
            if (transArray.toString() == this.positionArray.toString()) {
                this.positionArrayIndex++;
                if (this.positionArrayIndex === this.positionArray.length) {
                    this.positionArrayIndex = 0;
                }
                this.row_state = this.positionArray[this.positionArrayIndex];
            } else {
                this.positionArray = transArray;
                this.positionArrayIndex = 0;
                this.row_state = this.positionArray[this.positionArrayIndex];
            }
        } else {
            alert('没有搜索到相关数据');
        }
        this.changeDetectorRef.detectChanges();
        let tr = $(".selected");
        let objTr = tr[0];
        if (objTr) {
            $("#table-container").animate({ scrollTop: objTr.offsetTop - 42 }, "slow");
        }

    }
}