evgenyfedorenko

...
<tr [ngClass]="getRowClass(row)"
  #transaction
  (click)="lock(row, $event)"
  [model]="row"
  ngFor="let row of rows; trackBy:rowIdentity">
</tr>
...

evgenyfedorenko

evgenyfedorenko

...
@Component({
  selector: 'list',
  templateUrl: './list.component.html',
  styleUrls: ['./list.component.scss']
})

export class ListComponent implements OnChanges {

  @Input() rows: Transaction[];

evgenyfedorenko

...
@Component({
  selector: 'list',
  templateUrl: './list.component.html',
  styleUrls: ['./list.component.scss'],
  changeDetection: ChangeDetectionStrategy.OnPush
})

export class ListComponent implements OnChanges {

evgenyfedorenko

...

@Component({
  selector: 'transaction',
  templateUrl: './transaction.html',
  styleUrls: ['./transaction.scss'],
  changeDetection: ChangeDetectionStrategy.OnPush
})
export class TransactionComponent implements OnChanges {

evgenyfedorenko

evgenyfedorenko

evgenyfedorenko

import { Injectable } from '@angular/core';
import {
  BehaviorSubject,
  Observable,
  queueScheduler,
} from 'rxjs';
import { observeOn, scan, withLatestFrom, map, distinctUntilChanged } from 'rxjs/operators';
import { reducers } from './reducers';

export interface Action {

evgenyfedorenko

  ...  
  actions$: BehaviorSubject<Action>;
  state$: BehaviorSubject<any>;

  constructor() {
    this.actions$ = new BehaviorSubject({ type: 'INIT' });
    const actionsOnQueue$: Observable<Action> = this.actions$.pipe(observeOn(queueScheduler));
    const reducer$: Observable<
      ActionReducer<any, any>
    > = new BehaviorSubject(reducerFactory(reducers));

evgenyfedorenko

function reducerFactory(reducers) {
  return function combination(state, action) {
    const nextState: any = {};
    const reducerKeys = Object.keys(reducers);
    for (let i = 0; i < reducerKeys.length; i++) {
      const key = reducerKeys[i];
      const reducer: any = reducers[key];
      nextState[key] = reducer(state[key], action);
    }
    return nextState;