HTMLElement: animationcancel event

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This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

An animationcancel event is fired when a CSS Animation unexpectedly aborts. In other words, any time it stops running without sending an animationend event). This might happen when the animation-name is changed such that the animation is removed, or when the animating node is hidden using CSS. Therefore, either directly or because any of its containing nodes are hidden.

An event handler for this event can be added by setting the onanimationcancel property, or using addEventListener().

Bubbles Yes
Cancelable No
Interface AnimationEvent
Event handler property onanimationcancel

Examples

This code gets an element that's currently being animated and adds a listener to the animationcancel event. It then sets the element's display property to none, which will trigger the animationcancel event.

const animated = document.querySelector('.animated');

animated.addEventListener('animationcancel', () => {
  console.log('Animation canceled');
});

animated.style.display = 'none';

The same, but using the onanimationcancel property instead of addEventListener():

const animated = document.querySelector('.animated');
animated.onanimationcancel = () => {
  console.log('Animation canceled');
};

animated.style.display = 'none';

Live example

HTML

<div class="animation-example">
    <div class="container">
        <p class="animation">You chose a cold night to visit our planet.</p>
    </div>
    <button class="activate" type="button">Activate animation</button>
    <div class="event-log"></div>
</div>

CSS

.container {
  height: 3rem;
}

.event-log {
  width: 25rem;
  height: 2rem;
  border: 1px solid black;
  margin: 0.2rem;
  padding: 0.2rem;
}

.animation.active {
  animation-duration: 2s;
  animation-name: slidein;
  animation-iteration-count: 2;
}

@keyframes slidein {
  from {
    transform: translateX(100%) scaleX(3);
  }
  to {
    transform: translateX(0) scaleX(1);
  }
}

JS

const animation = document.querySelector('p.animation');
const animationEventLog = document.querySelector('.animation-example>.event-log');
const applyAnimation = document.querySelector('.animation-example>button.activate');
let iterationCount = 0;

animation.addEventListener('animationstart', () => {
  animationEventLog.textContent = `${animationEventLog.textContent}'animation started' `;
});

animation.addEventListener('animationiteration', () => {
  iterationCount++;
  animationEventLog.textContent = `${animationEventLog.textContent}'animation iterations: ${iterationCount}' `;
});

animation.addEventListener('animationend', () => {
  animationEventLog.textContent = `${animationEventLog.textContent}'animation ended'`;
  animation.classList.remove('active');
  applyAnimation.textContent = "Activate animation";
});

animation.addEventListener('animationcancel', () => {
  animationEventLog.textContent = `${animationEventLog.textContent}'animation canceled'`;
});

applyAnimation.addEventListener('click', () => {
  animation.classList.toggle('active');
  animationEventLog.textContent = '';
  iterationCount = 0;
  let active = animation.classList.contains('active');
  if (active) {
    applyAnimation.textContent = "Cancel animation";
  } else {
    applyAnimation.textContent = "Activate animation";
  }
});

Result

Specifications

Specification Status Comment
CSS Animations Working Draft Initial definition

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
animationcancel eventChrome No support NoEdge ? Firefox Full support 54IE ? Opera No support NoSafari ? WebView Android No support NoChrome Android No support NoFirefox Android Full support 54Opera Android No support NoSafari iOS ? Samsung Internet Android ?

Legend

Full support  
Full support
No support  
No support
Compatibility unknown  
Compatibility unknown

See also