private _initDirective()

in libs/fabric/src/lib/components/details-list/details-list.component.ts [309:333]

• 20 lines of code
• 2 McCabe index (conditional complexity)

  private _initDirective(directive: ChangeableItemsDirective<any>, propertyKey: 'columns' | 'groups') {
    const transformItemsFunc = this._transformItemsFunction(directive);
    const setItems = (mapper: (items: ReadonlyArray<any>) => ReadonlyArray<any>) => {
      this[propertyKey] = mapper(this[propertyKey]);
      transformItemsFunc(this[propertyKey]);
      this.markForCheck();
    };

    setItems(() => directive.items);

    // Subscribe to adding/removing items
    this._subscriptions.push(
      directive.onItemsChanged.subscribe((newItems: QueryList<ChangeableItemsDirective<any>>) => {
        setItems(() => newItems.map(directive => directive));
      })
    );

    // Subscribe for existing item changes
    this._subscriptions.push(
      directive.onChildItemChanged.subscribe(({ key, changes }) => {
        setItems(items => items.map(item => (item.key === key ? mergeItemChanges(item, changes) : item)));
        this.markForCheck();
      })
    );
  }