29 lines
605 B
TypeScript
29 lines
605 B
TypeScript
// #docplaster
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// #docregion
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import { Directive, ElementRef, Input } from '@angular/core';
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@Directive({
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selector: '[myHighlight]',
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host: {
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'(mouseenter)': 'onMouseEnter()',
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'(mouseleave)': 'onMouseLeave()'
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}
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})
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export class HighlightDirective {
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@Input('myHighlight') highlightColor: string;
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private el: HTMLElement;
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constructor(el: ElementRef) {
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this.el = el.nativeElement;
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}
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onMouseEnter() { this.highlight(this.highlightColor || 'cyan'); }
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onMouseLeave() { this.highlight(null); }
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private highlight(color: string) {
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this.el.style.backgroundColor = color;
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}
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}
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