ng-config-cat/esm2015/lib/directives/ng-config-cat-feature-base.directive.js

An Angular service for ConfigCat

import { Directive, TemplateRef, ViewContainerRef, } from '@angular/core';
import { Subject } from 'rxjs';
import { map, takeUntil } from 'rxjs/operators';
import { NgConfigCatService } from '../services/ng-config-cat.service';
export class NgConfigCatFeatureBaseDirective {
    constructor(viewContainerRef, templateRef, ngConfigCatService) {
        this.viewContainerRef = viewContainerRef;
        this.templateRef = templateRef;
        this.ngConfigCatService = ngConfigCatService;
        this.destroy$ = new Subject();
        this.viewRef = null;
    }
    ngOnInit() {
        if (!this.featureName) {
            throw new Error('Attribute `ngConfigCatFeatureEnabled` should not be null or empty');
        }
        this.render();
    }
    ngOnDestroy() {
        this.destroy$.next();
    }
    render() {
        this.ngConfigCatService.getValue(this.featureName, this.defaultValue, this.user).pipe(takeUntil(this.destroy$), map((isFeatureEnabled) => isFeatureEnabled === this.shouldFeatureBeEnabled)).subscribe((isVisible) => {
            if (isVisible) {
                this.viewRef = this.viewContainerRef.createEmbeddedView(this.templateRef);
                this.viewRef.markForCheck();
            }
            else {
                this.viewContainerRef.clear();
                if (this.viewRef) {
                    this.viewRef.destroy();
                    this.viewRef = null;
                }
            }
        });
    }
}
NgConfigCatFeatureBaseDirective.decorators = [
    { type: Directive, args: [{
                selector: '[ngConfigCatFeatureBase]'
            },] }
];
NgConfigCatFeatureBaseDirective.ctorParameters = () => [
    { type: ViewContainerRef },
    { type: TemplateRef },
    { type: NgConfigCatService }
];
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