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- <!doctype html>
- <html>
- <head>
- <title>Legend Callbacks</title>
- <script src="../../dist/Chart.min.js"></script>
- <script src="../utils.js"></script>
- <style>
- body, html {
- height: 100%;
- font-family: sans-serif;
- }
- canvas{
- -moz-user-select: none;
- -webkit-user-select: none;
- -ms-user-select: none;
- }
- #log {
- position: absolute;
- right: 0;
- top: 0;
- bottom: 0;
- background-color: #EEE;
- float: right;
- width: 20%;
- padding: 8px;
- overflow-y: auto;
- white-space: pre;
- line-height: 1.5em;
- }
- </style>
- </head>
- <body>
- <div id="log"></div>
- <div style="width:75%;">
- <canvas id="canvas"></canvas>
- </div>
- <script>
- var logEntry = 1;
- var logElement = document.getElementById('log');
- var utils = Samples.utils;
- var inputs = {
- min: 20,
- max: 80,
- count: 8,
- decimals: 2,
- continuity: 1
- };
- var config;
- function log(text) {
- logElement.innerText += logEntry + '. ' + text + '\n';
- logElement.scrollTop = logElement.scrollHeight;
- logEntry++;
- }
- function generateData() {
- return utils.numbers(inputs);
- }
- function generateLabels() {
- return utils.months({count: inputs.count});
- }
- utils.srand(42);
- config = {
- type: 'line',
- data: {
- labels: generateLabels(),
- datasets: [{
- label: 'My First dataset',
- backgroundColor: utils.color(0),
- borderColor: utils.color(0),
- data: generateData(),
- fill: false,
- }, {
- label: 'My Second dataset',
- fill: false,
- backgroundColor: utils.color(1),
- borderColor: utils.color(1),
- data: generateData(),
- }]
- },
- options: {
- legend: {
- onHover: function(event, legendItem) {
- log('onHover: ' + legendItem.text);
- },
- onLeave: function(event, legendItem) {
- log('onLeave: ' + legendItem.text);
- },
- onClick: function(event, legendItem) {
- log('onClick:' + legendItem.text);
- }
- },
- title: {
- display: true,
- text: 'Chart.js Line Chart'
- },
- scales: {
- xAxes: [{
- display: true,
- scaleLabel: {
- display: true,
- labelString: 'Month'
- }
- }],
- yAxes: [{
- display: true,
- scaleLabel: {
- display: true,
- labelString: 'Value'
- }
- }]
- }
- }
- };
- new Chart(document.getElementById('canvas'), config);
- </script>
- </body>
- </html>
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