import { Directive, Input, OnInit, ElementRef, Injector, AfterViewInit } from '@angular/core';

@Directive({
    selector: '[show-title]'
})
export class ShowTitleDirective implements OnInit, AfterViewInit {
    @Input('show-title') enableTips;

    constructor(private el: ElementRef, private injector: Injector) {}

    ngOnInit() {
    }

    ngAfterViewInit() {
        if (this.enableTips) {
            this.el.nativeElement.title = this.el.nativeElement.innerText;
        }
    }
}