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DOM rich elements and tools for CSS, JavaScript, Element Tracking, DOM Manipulation, Storage, Dialog and more.


A simple usage example:

import 'dart:html';
import 'package:dom_tools/dom_tools.dart';

void main() {

  var imgSrc = '' ;

  // Example of an image that only loads when visualized in viewport:

  var tracker = TrackElementInViewport() ;
  var imageElement = ImageElement() ;

  tracker.track(imageElement, onEnterViewport: (elem) {
    imageElement.src = imgSrc ;

  document.body.children.add( imageElement ) ;

  Future.delayed( Duration(seconds: 10) , (){
    var img = getElementBySRC('img', imgSrc) ;
    if (img == null) {
      window.alert('After 10s the image is not visible in viewport yet') ;
    else {
      window.alert('After 10s the image was visible in viewport.') ;

Features and bugs

Please file feature requests and bugs at the issue tracker.


Graciliano M. Passos: gmpassos@GitHub.


Dart free & open-source license.