23 lines
706 B
TypeScript
23 lines
706 B
TypeScript
// #docregion
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import { Directive, ElementRef, Input, OnChanges, Renderer } from '@angular/core';
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@Directive({ selector: '[highlight]' })
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/** Set backgroundColor for the attached element to highlight color
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* and set the element's customProperty to true */
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export class HighlightDirective implements OnChanges {
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defaultColor = 'rgb(211, 211, 211)'; // lightgray
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@Input('highlight') bgColor: string;
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constructor(private renderer: Renderer, private el: ElementRef) {
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renderer.setElementProperty(el.nativeElement, 'customProperty', true);
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}
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ngOnChanges() {
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this.renderer.setElementStyle(
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this.el.nativeElement, 'backgroundColor',
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this.bgColor || this.defaultColor );
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}
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}
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