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I have a HTML file named index.html as follows.
<!DOCTYPE html>
<html lang="en" xmlns="http://www.w3.org/1999/xhtml">
<head>
<style>
path {
fill: none;
stroke: black;
stroke-width: 3;
}
</style>
</head>
<body>
<object type="image/svg+xml" data="test.svg"></object>
<img src="test.svg" />
<p><button class="animate">Animate</button></p>
<script>
(function () {
var button = document.querySelector('.animate');
button.onclick = function (event) {
var paths = document.querySelectorAll('path');
for (var i = 0; i < paths.length; i++) {
var path = paths[i];
var length = path.getTotalLength();
// Clear any previous transition
path.style.transition = path.style.WebkitTransition = 'none';
// Set up the starting positions
path.style.strokeDasharray = length + ' ' + length;
path.style.strokeDashoffset = length;
// Trigger a layout so styles are calculated & the browser
// picks up the starting position before animating
path.getBoundingClientRect();
// Define our transition
path.style.transition = path.style.WebkitTransition = 'stroke-dashoffset 2s ease-in-out ' + (2 * i) + 's';
// Go!
path.style.strokeDashoffset = '0';
}
};
}());
</script>
</body>
</html>
and a SVG file named test.svg as follows.
<svg width="100" height="100" viewBox="0 0 100 100">
<path d="M52.25,14c0.25,2.28-0.52,3.59-1.8,5.62c-5.76,9.14-17.9,27-39.2,39.88" />
<path d="M54.5,19.25c6.73,7.3,24.09,24.81,32.95,31.91c2.73,2.18,5.61,3.8,9.05,4.59" />
<path d="M37.36,50.16c1.64,0.34,4.04,0.36,4.98,0.25c6.79-0.79,14.29-1.91,19.66-2.4c1.56-0.14,3.25-0.39,4.66,0" />
<path d="M23,65.98c2.12,0.52,4.25,0.64,7.01,0.3c13.77-1.71,30.99-3.66,46.35-3.74c3.04-0.02,4.87,0.14,6.4,0.29" />
<path d="M47.16,66.38c0.62,1.65-0.03,2.93-0.92,4.28c-5.17,7.8-8.02,11.38-14.99,18.84c-2.11,2.25-1.5,4.18,2,3.75c7.35-0.91,28.19-5.83,40.16-7.95" />
<path d="M66.62,77.39c4.52,3.23,11,12.73,13.06,18.82" />
</svg>
I viewed index.html on Chrome but the animation does not work. Both files are in the same directory.
What is the proper way to animate the loaded SVG? As a note, I can animate when the SVG are copied and pasted to the HTML file as an inline SVG.
606
You have 2 documents (the html document and the object document) and you need to treat them as such. Styles from one document don't apply to the other so...
First we define the svg namespace and then move the path styles to the test.svg file so that becomes
<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" viewBox="0 0 100 100">
<style>
path {
fill: none;
stroke: black;
stroke-width: 3;
}
</style>
<path d="M52.25,14c0.25,2.28-0.52,3.59-1.8,5.62c-5.76,9.14-17.9,27-39.2,39.88" />
<path d="M54.5,19.25c6.73,7.3,24.09,24.81,32.95,31.91c2.73,2.18,5.61,3.8,9.05,4.59" />
<path d="M37.36,50.16c1.64,0.34,4.04,0.36,4.98,0.25c6.79-0.79,14.29-1.91,19.66-2.4c1.56-0.14,3.25-0.39,4.66,0" />
<path d="M23,65.98c2.12,0.52,4.25,0.64,7.01,0.3c13.77-1.71,30.99-3.66,46.35-3.74c3.04-0.02,4.87,0.14,6.4,0.29" />
<path d="M47.16,66.38c0.62,1.65-0.03,2.93-0.92,4.28c-5.17,7.8-8.02,11.38-14.99,18.84c-2.11,2.25-1.5,4.18,2,3.75c7.35-0.91,28.19-5.83,40.16-7.95" />
<path d="M66.62,77.39c4.52,3.23,11,12.73,13.06,18.82" />
</svg>
Then we need to change the animation code to extract the object's document. Note we cannot do this with an img element so I've removed that.
<!DOCTYPE html>
<html lang="en" xmlns="http://www.w3.org/1999/xhtml">
<body>
<object type="image/svg+xml" data="test.svg"></object>
<p><button class="animate">Animate</button></p>
<script>
(function () {
var button = document.querySelector('.animate');
button.onclick = function (event) {
var object = document.querySelector("object");
var doc = object.contentDocument;
var paths = doc.querySelectorAll('path');
for (var i = 0; i < paths.length; i++) {
var path = paths[i];
var length = path.getTotalLength();
// Clear any previous transition
path.style.transition = path.style.WebkitTransition = 'none';
// Set up the starting positions
path.style.strokeDasharray = length + ' ' + length;
path.style.strokeDashoffset = length;
// Trigger a layout so styles are calculated & the browser
// picks up the starting position before animating
path.getBoundingClientRect();
// Define our transition
path.style.transition = path.style.WebkitTransition = 'stroke-dashoffset 2s ease-in-out ' + (2 * i) + 's';
// Go!
path.style.strokeDashoffset = '0';
}
};
}());
</script>
</body>
</html>
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