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selected-book-page.ts
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selected-book-page.ts
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import { Component, ChangeDetectionStrategy } from '@angular/core';
import { Store } from '@ngrx/store';
import { Observable } from 'rxjs/Observable';
import * as fromBooks from '../reducers';
import * as collection from '../actions/collection';
import { Book } from '../models/book';
@Component({
selector: 'bc-selected-book-page',
changeDetection: ChangeDetectionStrategy.OnPush,
template: `
<bc-book-detail
[book]="book$ | async"
[inCollection]="isSelectedBookInCollection$ | async"
(add)="addToCollection($event)"
(remove)="removeFromCollection($event)">
</bc-book-detail>
`,
})
export class SelectedBookPageComponent {
book$: Observable<Book>;
isSelectedBookInCollection$: Observable<boolean>;
constructor(private store: Store<fromBooks.State>) {
this.book$ = store.select(fromBooks.getSelectedBook);
this.isSelectedBookInCollection$ = store.select(
fromBooks.isSelectedBookInCollection
);
}
addToCollection(book: Book) {
this.store.dispatch(new collection.AddBookAction(book));
}
removeFromCollection(book: Book) {
this.store.dispatch(new collection.RemoveBookAction(book));
}
}