pie-customTooltips.html
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<!doctype html>
<html>
<head>
<title>Pie Chart with Custom Tooltips</title>
<script src="../dist/Chart.bundle.js"></script>
<script src="http://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
<style>
#canvas-holder {
width: 100%;
margin-top: 50px;
text-align: center;
}
#chartjs-tooltip {
opacity: 1;
position: absolute;
background: rgba(0, 0, 0, .7);
color: white;
border-radius: 3px;
-webkit-transition: all .1s ease;
transition: all .1s ease;
pointer-events: none;
-webkit-transform: translate(-50%, 0);
transform: translate(-50%, 0);
}
.chartjs-tooltip-key {
display: inline-block;
width: 10px;
height: 10px;
}
</style>
</head>
<body>
<div id="canvas-holder" style="width: 50px;">
<canvas id="chart-area1" width="50" height="50" />
</div>
<div id="canvas-holder" style="width: 300px;">
<canvas id="chart-area2" width="300" height="300" />
</div>
<div id="chartjs-tooltip"></div>
<script>
Chart.defaults.global.tooltips.custom = function(tooltip) {
// Tooltip Element
var tooltipEl = $('#chartjs-tooltip');
if (!tooltipEl[0]) {
$('body').append('<div id="chartjs-tooltip"></div>');
tooltipEl = $('#chartjs-tooltip');
}
// Hide if no tooltip
if (!tooltip.opacity) {
tooltipEl.css({
opacity: 0
});
$('.chartjs-wrap canvas')
.each(function(index, el) {
$(el).css('cursor', 'default');
});
return;
}
$(this._chart.canvas).css('cursor', 'pointer');
// Set caret Position
tooltipEl.removeClass('above below no-transform');
if (tooltip.yAlign) {
tooltipEl.addClass(tooltip.yAlign);
} else {
tooltipEl.addClass('no-transform');
}
// Set Text
if (tooltip.body) {
var innerHtml = [
(tooltip.beforeTitle || []).join('\n'), (tooltip.title || []).join('\n'), (tooltip.afterTitle || []).join('\n'), (tooltip.beforeBody || []).join('\n'), (tooltip.body || []).join('\n'), (tooltip.afterBody || []).join('\n'), (tooltip.beforeFooter || [])
.join('\n'), (tooltip.footer || []).join('\n'), (tooltip.afterFooter || []).join('\n')
];
tooltipEl.html(innerHtml.join('\n'));
}
// Find Y Location on page
var top = 0;
if (tooltip.yAlign) {
if (tooltip.yAlign == 'above') {
top = tooltip.y - tooltip.caretHeight - tooltip.caretPadding;
} else {
top = tooltip.y + tooltip.caretHeight + tooltip.caretPadding;
}
}
var position = $(this._chart.canvas)[0].getBoundingClientRect();
// Display, position, and set styles for font
tooltipEl.css({
opacity: 1,
width: tooltip.width ? (tooltip.width + 'px') : 'auto',
left: position.left + tooltip.x + 'px',
top: position.top + top + 'px',
fontFamily: tooltip._fontFamily,
fontSize: tooltip.fontSize,
fontStyle: tooltip._fontStyle,
padding: tooltip.yPadding + 'px ' + tooltip.xPadding + 'px',
});
};
var config = {
type: 'pie',
data: {
datasets: [{
data: [300, 50, 100, 40, 10],
backgroundColor: [
"#F7464A",
"#46BFBD",
"#FDB45C",
"#949FB1",
"#4D5360",
],
}],
labels: [
"Red",
"Green",
"Yellow",
"Grey",
"Dark Grey"
]
},
options: {
responsive: true,
legend: {
display: false
},
tooltips: {
enabled: false,
}
}
};
window.onload = function() {
var ctx1 = document.getElementById("chart-area1").getContext("2d");
window.myPie = new Chart(ctx1, config);
var ctx2 = document.getElementById("chart-area2").getContext("2d");
window.myPie = new Chart(ctx2, config);
};
</script>
</body>
</html>