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- <html>
-
- <head>
- <title>Timeline | A lot of grouped data</title>
-
- <script src="../../../docs/js/jquery.min.js"></script>
- <script src="../../../dist/vis.js"></script>
- <link href="../../../dist/vis-timeline-graph2d.min.css" rel="stylesheet" type="text/css" />
-
- <style type="text/css">
- body {
- color: #4D4D4D;
- font: 10pt arial;
- }
- </style>
-
- </head>
-
- <body>
- <h1>Timeline visible Groups</h1>
-
- <button onclick="showVisibleGroups()">Show current visible items</button>
- <div>
- <h2>visible groups:</h2>
- <h3 id="visibleGroupsContainer"></h3>
- <h2>(Scroll with the mouse and see the items being focus automatically on the timeline)</h2>
- </div>
-
- <div id="mytimeline"></div>
- <br>
-
- <script>
- function showVisibleGroups() {
- var a = timeline.getVisibleGroups();
- document.getElementById("visibleGroupsContainer").innerHTML = ""
- document.getElementById("visibleGroupsContainer").innerHTML += a;
- };
-
- var now = Date.now()
-
- var options = {
- stack: true,
- maxHeight: 640,
- horizontalScroll: false,
- verticalScroll: true,
- zoomKey: "ctrlKey",
- start: Date.now() - 1000 * 60 * 60 * 24 * 3, // minus 3 days
- end: Date.now() + 1000 * 60 * 60 * 24 * 21, // plus 1 months aprox.
- orientation: {
- axis: "both",
- item: "top"
- },
- };
- var groups = new vis.DataSet();
- var items = new vis.DataSet();
-
- var count = 300;
-
- for (var i = 0; i < count; i++) {
- var start = now + 1000 * 60 * 60 * 24 * (i + Math.floor(Math.random() * 7))
- var end = start + 1000 * 60 * 60 * 24 * (1 + Math.floor(Math.random() * 5))
-
- groups.add({
- id: i,
- content: 'Task ' + i,
- order: i
- })
-
- items.add({
- id: i,
- group: i,
- start: start,
- end: end,
- type: 'range',
- content: 'Item ' + i
- });
- }
-
- // create a Timeline
- var container = document.getElementById('mytimeline');
- timeline = new vis.Timeline(container, null, options);
- timeline.setGroups(groups);
- timeline.setItems(items);
-
- function debounce(func, wait = 100) {
- let timeout;
- return function (...args) {
- clearTimeout(timeout);
- timeout = setTimeout(() => {
- func.apply(this, args);
- }, wait);
- };
- }
-
- let groupFocus = (e) => {
- let vGroups = timeline.getVisibleGroups()
- let vItems = vGroups.reduce((res, groupId) => {
- let group = timeline.itemSet.groups[groupId]
- if (group.items) {
- res = res.concat(Object.keys(group.items))
- }
- return res
- }, [])
- timeline.focus(vItems)
- }
- this.timeline.on("scroll", debounce(groupFocus, 200))
- // Enabling the next line leads to a continuous since calling focus might scroll vertically even if it shouldn't
- // this.timeline.on("scrollSide", debounce(groupFocus, 200))
- </script>
-
- </body>
-
- </html>
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