<head>
<title>Line 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{
-moz-user-select: none;
<body>
<div id="canvas-holder1" style="width:75%;">
- <canvas id="chart1"/>
+ <canvas id="chart"/>
</div>
<script>
- window.count = 0;
Chart.defaults.global.pointHitDetectionRadius = 1;
- var customTooltips = function(tooltip) {
+ var customTooltips = function(tooltip) {
// Tooltip Element
- var tooltipEl = $('#chartjs-tooltip');
+ var tooltipEl = document.getElementById('chartjs-tooltip');
- if (!tooltipEl[0]) {
- $('body').append('<div id="chartjs-tooltip"></div>');
- tooltipEl = $('#chartjs-tooltip');
+ if (!tooltipEl) {
+ var div = document.createElement('div');
+ div.id = 'chartjs-tooltip';
+ document.body.appendChild(div);
+ tooltipEl = document.getElementById('chartjs-tooltip');
}
// Hide if no tooltip
- if (!tooltip.opacity) {
- tooltipEl.css({
- opacity: 0
- });
- $('.chartjs-wrap canvas')
- .each(function(index, el) {
- $(el).css('cursor', 'default');
- });
+ if (tooltip.opacity === 0) {
+ tooltipEl.style.opacity = 0;
+ document.querySelector('.chartjs-wrap').style.cursor = 'default';
return;
}
- $(this._chart.canvas).css('cursor', 'pointer');
+ this._chart.canvas.style.cursor = 'pointer';
// Set caret Position
- tooltipEl.removeClass('above below no-transform');
+ tooltipEl.classList.remove('above', 'below', 'no-transform');
if (tooltip.yAlign) {
- tooltipEl.addClass(tooltip.yAlign);
+ tooltipEl.classList.add(tooltip.yAlign);
} else {
- tooltipEl.addClass('no-transform');
+ tooltipEl.classList.add('no-transform');
+ }
+
+ function joinBody(bodyItem) {
+ return [].concat(bodyItem.before, bodyItem.lines, bodyItem.after).join('\n')
}
// 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')
+ (tooltip.beforeTitle || []).join('\n'),
+ (tooltip.title || []).join('\n'),
+ (tooltip.afterTitle || []).join('\n'),
+ (tooltip.beforeBody || []).join('\n'),
+ (tooltip.body || []).map(joinBody).join('\n'),
+ (tooltip.afterBody || []).join('\n'),
+ (tooltip.beforeFooter || []).join('\n'),
+ (tooltip.footer || []).join('\n'),
+ (tooltip.afterFooter || []).join('\n')
];
- tooltipEl.html(innerHtml.join('\n'));
+ tooltipEl.innerHTML = 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;
+ top = tooltip.caretY - tooltip.caretHeight - tooltip.caretPadding;
} else {
- top = tooltip.y + tooltip.caretHeight + tooltip.caretPadding;
+ top = tooltip.caretY + tooltip.caretHeight + tooltip.caretPadding;
}
}
- var position = $(this._chart.canvas)[0].getBoundingClientRect();
+ var position = this._chart.canvas.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',
- });
+ tooltipEl.style.opacity = 1;
+ tooltipEl.style.width = tooltip.width ? (tooltip.width + 'px') : 'auto';
+ tooltipEl.style.left = position.left + tooltip.caretX + 'px';
+ tooltipEl.style.top = position.top + top + 'px';
+ tooltipEl.style.fontFamily = tooltip._fontFamily;
+ tooltipEl.style.fontSize = tooltip.fontSize;
+ tooltipEl.style.fontStyle = tooltip._fontStyle;
+ tooltipEl.style.padding = tooltip.yPadding + 'px ' + tooltip.xPadding + 'px';
};
+
var randomScalingFactor = function() {
return Math.round(Math.random() * 100);
};
};
window.onload = function() {
- var chartEl = document.getElementById("chart1");
+ var chartEl = document.getElementById("chart");
window.myLine = new Chart(chartEl, {
type: 'line',
data: lineChartData,