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174 lines
5.0 KiB
174 lines
5.0 KiB
<!DOCTYPE HTML>
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<html>
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<head>
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<title>Timeline | Select items</title>
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<style>
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body, html {
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font-family: arial, sans-serif;
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font-size: 11pt;
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}
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</style>
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<script src="../../../dist/vis.js"></script>
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<link href="../../../dist/vis-timeline-graph2d.min.css" rel="stylesheet" type="text/css" />
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</head>
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<body>
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<h1>Set selection</h1>
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<p style="max-width: 600px;">
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Enter one or multiple ids of items, then press select to select the items. This demo uses the function <code>Timeline.setSelection(ids)</code>. Optionally, the window can be moved to the selected items.
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</p>
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<p>
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Select item(s): <input type="text" id="selection" value="5, 6"><input type="button" id="select" value="Select"><br>
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<label><input type="checkbox" id="focus" checked> Focus on selection</label>
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</p>
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<div id="visualization"></div>
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<br/>
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<p>If the height of the timeline is limited some items may be vertically offscreen. This demo uses <code>Timeline.setSelection(ids, {focus: true})</code> and demonstrates that focusing on an item will
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cause the timeline to scroll vertically to the item that is being focused on. You can use the buttons below select a random item either above or below the currently selected item.
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</p>
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<button id="prevFocus">Select Item Above</button>
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<button id="nextFocus">Select Item Below</button>
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<br/>
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<p>If focusing on multiple items only the first item will be scrolled to. Try entering several ids and hitting <em>select</em>.</p>
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<p>
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Select item(s): <input type="text" id="selectionVertical" value="g1_5, g2_3"><input type="button" id="selectVertical" value="Select"><br>
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</p>
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<div id="vertical-visualization"></div>
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<script>
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// create a dataset with items
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// we specify the type of the fields `start` and `end` here to be strings
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// containing an ISO date. The fields will be outputted as ISO dates
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// automatically getting data from the DataSet via items.get().
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var items = new vis.DataSet({
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type: { start: 'ISODate', end: 'ISODate' }
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});
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// add items to the DataSet
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items.add([
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{id: 1, content: 'item 1<br>start', start: '2014-01-23'},
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{id: 2, content: 'item 2', start: '2014-01-18'},
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{id: 3, content: 'item 3', start: '2014-01-21'},
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{id: 4, content: 'item 4', start: '2014-01-19', end: '2014-01-24'},
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{id: 5, content: 'item 5', start: '2014-01-28', type:'point'},
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{id: 6, content: 'item 6', start: '2014-01-26'}
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]);
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var container = document.getElementById('visualization');
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var options = {
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editable: true
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};
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var timeline = new vis.Timeline(container, items, options);
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var selection = document.getElementById('selection');
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var select = document.getElementById('select');
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var focus = document.getElementById('focus');
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select.onclick = function () {
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var ids = selection.value.split(',').map(function (value) {
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return value.trim();
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});
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timeline.setSelection(ids, {focus: focus.checked});
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};
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function getRandomInt(min, max) {
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min = Math.ceil(min);
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max = Math.floor(max);
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return Math.floor(Math.random() * (max - min)) + min; //The maximum is exclusive and the minimum is inclusive
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};
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// Vertical scroll example
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var groups = [];
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var items = [];
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var groupItems = {};
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for (var g = 0; g < 10; g++) {
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groups.push({
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id: g,
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content: "Group " + g
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});
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groupItems[g] = [];
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for (var i = 0; i < 30; i++) {
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items.push({
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id: "g" + g + "_" + i,
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content: "g" + g + "_" + i,
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group: g,
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start: "2014-" + (g + 1) + "-" + getRandomInt(1, 20)
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});
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groupItems[g].push(items[items.length - 1]);
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}
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}
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var container2 = document.getElementById('vertical-visualization');
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var options = {
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editable: false,
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stack: true,
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height: 300,
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verticalScroll: true,
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groupOrder: 'id'
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};
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var timeline2 = new vis.Timeline(container2, items, groups, options);
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var groupIndex = 0;
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var itemIndex = 0;
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var moveToItem = function(direction) {
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itemIndex += direction;
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groupIndex += direction;
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if (groupIndex < 0) {
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groupIndex = groups.length - 1;
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} else if (groupIndex >= groups.length) {
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groupIndex = 0;
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}
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var items = groupItems[groupIndex];
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if (itemIndex < 0) {
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itemIndex = items.length - 1;
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} else if (itemIndex >= items.length) {
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itemIndex = 0;
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}
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var id = items[itemIndex].id;
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timeline2.setSelection(id, {focus: true});
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}
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var nextFocus = document.getElementById('nextFocus');
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var prevFocus = document.getElementById('prevFocus');
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var selectionVertical = document.getElementById('selectionVertical');
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var selectVertical = document.getElementById('selectVertical');
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selectVertical.onclick = function () {
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var ids = selectionVertical.value.split(',').map(function (value) {
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return value.trim();
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});
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timeline2.setSelection(ids, {focus: focus.checked});
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};
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nextFocus.onclick = function() {
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moveToItem(1);
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};
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prevFocus.onclick = function() {
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moveToItem(-1);
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};
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// Set the initial focus
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setTimeout(function() {
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moveToItem(0);
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}, 500);
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</script>
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</body>
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</html>
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