📜  angular mouseenter - Html 代码示例

📅  最后修改于: 2022-03-11 14:52:52.995000             🧑  作者: Mango

代码示例9
import { Directive, OnInit, ElementRef, Renderer2 ,HostListener,HostBinding,Input} from '@angular/core';
import { MockNgModuleResolver } from '@angular/compiler/testing';
//import { Event } from '@angular/router';

@Directive({
  selector: '[appBetterHighlight]'
})
export class BetterHighlightDirective implements OnInit {
   defaultcolor :string = 'black'
   Highlightedcolor : string = 'red'
    @HostBinding('style.color') color : string = this.defaultcolor;

  constructor(private elm : ElementRef , private render:Renderer2) { }
ngOnInit()
{}
@HostListener('mouseenter') mouseover(event :Event)
{

  this.color= this.Highlightedcolor ;
}
@HostListener('mouseleave') mouseleave(event: Event)
{

  this.color = this.defaultcolor;
}
}