内部html在DOM树中完全呈现后，将触发哪个事件？

Question

I want to know what event will be fired when the innerHtml property of any div is changed and DOM the tree for that div is completely loaded into memory.

I want to invoke the following function after that event is fired. I want to remove the setTimeout() hack in the following function as it may fail sometime.

private registerEventListenersForLink() {
  let _self = this;
  setTimeout(function () {
    var AElemList = document.querySelectorAll('.appmedia-content-wrapper a');
    for (let i = 0; i < AElemList.length; i++) {
      AElemList[i].addEventListener("click", function (event) {
        event.preventDefault();
        event.stopPropagation();
        var url = event.target["href"];
        if (url && url.trim() != '') {
          _self.utilService.openUrlExternaly(url);
        }
      });
    }
  }, 80);
}

I have found following links related to above issue but I haven't got any ideas out of it:

Event to determine when innerHTML has loaded

https://www.w3.org/html/wg/spec/apis-in-html-documents.html#dom-innerhtml

Answer 1

I fixed my issue. I have implemented a directive as follows and it has worked like a charm. Thank you Rory McCrossan for pointing me at MutationObserver api.

import { Directive, ElementRef } from '@angular/core';
import { UtilService } from '../../providers/util-service';

@Directive({
  selector: '[external-links]' // Attribute selector
})
export class ExternalLinks {
  private observer;
  constructor(private elRef: ElementRef, public utilService: UtilService) {
  }

  ngAfterViewInit() {
    var _self = this;
    this.observer = new MutationObserver(mutations => {
      mutations.forEach(function (mutation) {
        if (mutation.type == 'childList') {
          var AElemList = _self.elRef.nativeElement.querySelectorAll('a');
          for (let i = 0; i < AElemList.length; i++) {
            AElemList[i].addEventListener("click", function (event) {
              event.preventDefault();
              event.stopPropagation();
              var url = event.target["href"];
              if (url && url.trim() != '') {
                _self.utilService.openUrlExternaly(url);
              }
            });
          }
        }
      });
    });
    var config = { childList: true };

    this.observer.observe(this.elRef.nativeElement, config);
  }

}