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<!doctype html>
<html>
<head>
<title> Animation Callbacks </title>
<script src="../../dist/Chart.bundle.js"></script>
<script src="../utils.js"></script>
<style>
canvas {
-moz-user-select: none;
-webkit-user-select: none;
-ms-user-select: none;
}
</style>
</head>
<body>
<div style="width: 75%;">
<canvas id="canvas"></canvas>
<progress id="animationProgress" max="1" value="0" style="width: 100%"></progress>
</div>
<br>
<br>
<button id="randomizeData">Randomize Data</button>
<script>
var progress = document.getElementById('animationProgress');
var config = {
type: 'line',
data: {
labels: ['January', 'February', 'March', 'April', 'May', 'June', 'July'],
datasets: [{
label: 'My First dataset',
fill: false,
borderColor: window.chartColors.red,
backgroundColor: window.chartColors.red,
data: [
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor()
]
}, {
label: 'My Second dataset ',
fill: false,
borderColor: window.chartColors.blue,
backgroundColor: window.chartColors.blue,
data: [
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor()
]
}]
},
options: {
title: {
display: true,
text: 'Chart.js Line Chart - Animation Progress Bar'
},
animation: {
duration: 2000,
onProgress: function(animation) {
progress.value = animation.currentStep / animation.numSteps;
},
onComplete: function() {
window.setTimeout(function() {
progress.value = 0;
}, 2000);
}
}
}
};
window.onload = function() {
var ctx = document.getElementById('canvas').getContext('2d');
window.myLine = new Chart(ctx, config);
};
document.getElementById('randomizeData').addEventListener('click', function() {
config.data.datasets.forEach(function(dataset) {
dataset.data = dataset.data.map(function() {
return randomScalingFactor();
});
});
window.myLine.update();
});
</script>
</body>
</html>
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