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===============================================
Animation inspector example: Web Animations API
===============================================
Firefox Logo Animation
**********************
Example animation using the `Web Animations API <https://developer.mozilla.org/en-US/docs/Web/API/Web_Animations_API>`_.
HTML Content
------------
.. code-block:: html
<div class="channel">
<img src="developer.png" id="icon"/>
<span id="note">Firefox Developer Edition</span>
</div>
CSS Content
-----------
.. code-block:: css
.channel {
padding: 2em;
margin: 0.5em;
box-shadow: 1px 1px 5px #808080;
margin: 1.5em;
}
.channel > * {
vertical-align: middle;
line-height: normal;
}
#icon {
width: 50px;
height: 50px;
filter: grayscale(100%);
}
#note {
margin-left: 1em;
font: 1.5em "Open Sans",Arial,sans-serif;
overflow: hidden;
white-space: nowrap;
display: inline-block;
opacity: 0;
width: 0;
}
.. _page-inspector-work-with-animations-web-example-js-content:
JavaScript Content
------------------
.. code-block:: JavaScript
var iconKeyframeSet = [
{ transform: 'scale(1)', filter: 'grayscale(100%)'},
{ filter: 'grayscale(100%)', offset: 0.333},
{ transform: 'scale(1.5)', offset: 0.666 },
{ transform: 'scale(1.5)', filter: 'grayscale(0%)'}
];
var noteKeyframeSet = [
{ opacity: '0', width: '0'},
{ opacity: '1', width: '300px'}
];
var iconKeyframeOptions = {
duration: 750,
fill: 'forwards',
easing: 'ease-in',
endDelay: 100
}
var noteKeyframeOptions = {
duration: 500,
fill: 'forwards',
easing: 'ease-out',
delay: 150
}
var icon = document.getElementById("icon");
var note = document.getElementById("note");
var iconAnimation = icon.animate(iconKeyframeSet, iconKeyframeOptions);
var noteAnimation = note.animate(noteKeyframeSet, noteKeyframeOptions);
iconAnimation.pause();
noteAnimation.pause();
var firstTime = true;
function animateChannel(e) {
if (e.button != 0) {
return;
}
if (e.target.id != "icon") {
return;
}
if (firstTime) {
iconAnimation.play();
noteAnimation.play();
firstTime = false;
} else {
iconAnimation.reverse();
noteAnimation.reverse();
}
}
document.addEventListener("click", animateChannel);
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