Element: animationcancel event

The 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.

Syntax

Use the event name in addEventListener():

addEventListener("animationcancel", (event) => { })

Alternatively, assign to the event handler property of the interface:

onanimationcancel = (event) => { }

Event type

An AnimationEvent. Inherits from Event.

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() (but note that this replaces other event listeners added using onanimationcancel, if any):

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: slide-in;
  animation-iteration-count: 2;
}

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

JavaScript

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;
  const active = animation.classList.contains("active");
  applyAnimation.textContent = active
    ? "Cancel animation"
    : "Activate animation";
});

Result

Specifications

Browser compatibility

See also

• CSS Animations
• Using CSS Animations
• AnimationEvent
• Related events: animationstart, animationend, animationiteration