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How Can I Replace Deprecated SMIL Animations with CSS or Web Animations?
How Can I Replace Deprecated SMIL Animations with CSS or Web Animations?
Oct 25, 2024 pm 05:34 PM
Hover Effect: CSS Animation or Web Animations
Problem:
SMIL's animate tag is deprecated, and CSS hover transitions need to be implemented to replace it.
Solution:
Remove the set tags and add CSS to the element_tpl:hover pseudo-class:
<code class="css">.element_tpl:hover {
stroke-opacity: 0.5;
}</code>
Scaling Effect upon Change
Problem:
Animate the element to scale a few times upon a committed change.
Solution:
Consider the following options:
- CSS Animation: Use CSS keyframes to achieve scaling:
<code class="css">@keyframes scale-animation {
0% { transform: scale(1); }
50% { transform: scale(1.12); }
100% { transform: scale(1); }
}</code>
Then apply the animation to the element:
<code class="css">.element_tpl {
animation: scale-animation 0.5s infinite alternate;
}</code>
- Web Animations: Use the Web Animations API to programmatically control the scaling:
<code class="javascript">// Create a new animation
const animation = document.timeline.addAnimation();
// Define keyframes
const keyframes = [
{ transform: 'scale(1)', offset: 0 },
{ transform: 'scale(1.12)', offset: 0.5 },
{ transform: 'scale(1)', offset: 1 }
];
// Apply keyframes to the animation
animation.effect = keyframes;
// Target the element
animation.target = document.querySelector('.element_tpl');</code>
Scale Up and Down on Click
Problem:
Animate the element to scale up and down upon clicking.
Solution:
- CSS Transitions: Use CSS transitions to trigger the scale changes on mousedown and mouseup events:
<code class="css">.element_tpl {
transition: transform 0.2s;
}
.element_tpl:active {
transform: scale(1.1);
}</code>
- Web Animations: Use the Web Animations API to handle the click event and scale the element accordingly:
<code class="javascript">// Add event listener
document.querySelector('.element_tpl').addEventListener('click', (event) => {
// Create a new animation
const animation = document.timeline.addAnimation();
// Define keyframes
const keyframes = [
{ transform: 'scale(1)', offset: 0 },
{ transform: 'scale(1.1)', offset: 0.2 },
{ transform: 'scale(1)', offset: 0.4 },
];
// Apply keyframes to the animation
animation.effect = keyframes;
// Target the element
animation.target = event.target;
});</code>
Saving SMIL Animations
Problem:
Transfer SMIL animations to CSS or Web animations.
Solution:
Use the SMIL polyfill created by Eric Willigers: https://github.com/ericwilligers/svg-animation. This polyfill converts SMIL animations to Web Animations, providing an alternative way to implement them.
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