<html> <head> <title>Timeline | Update data on event</title> <style type="text/css"> body { font: 11pt verdana; } .vis.timeline .item.past { filter: alpha(opacity=50); opacity: 0.5; } </style> <script src="../../../dist/vis.js"></script> <link href="../../../dist/vis-timeline-graph2d.min.css" rel="stylesheet" type="text/css" /> </head> <body> <p style="width: 600px;"> When the custom time bar is shown, the user can drag this bar to a specific time. The Timeline sends an event that the custom time is changed, after which the contents of the timeline can be changed according to the specified time in past or future. </p> <div id="customTime"> </div> <p></p> <div id="mytimeline"></div> <script> // create a data set var data = new vis.DataSet([ { id: 1, start: new Date((new Date()).getTime() - 60 * 1000), end: new Date(), content: 'Dynamic event' } ]); // specify options var options = { showCurrentTime: true }; // create a timeline var container = document.getElementById('mytimeline'); timeline = new vis.Timeline(container, data, options); timeline.addCustomTime(new Date()); // add event listener timeline.on('timechange', function (event) { document.getElementById("customTime").innerHTML = "Custom Time: " + event.time; var item = data.get(1); if (event.time > item.start) { item.end = new Date(event.time); var now = new Date(); if (event.time < now) { item.content = "Dynamic event (past)"; item.className = 'past'; } else if (event.time > now) { item.content = "Dynamic event (future)"; item.className = 'future'; } else { item.content = "Dynamic event (now)"; item.className = 'now'; } data.update(item); } }); // set a custom range from -2 minute to +3 minutes current time var start = new Date((new Date()).getTime() - 2 * 60 * 1000); var end = new Date((new Date()).getTime() + 3 * 60 * 1000); timeline.setWindow(start, end, {animation: false}); </script> </body> </html>