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I initialized the cytoscape like this:
var cy = cytoscape({
container: document.getElementById('cy'),
elements: [
{ data: { id: 'a' } },
{ data: { id: 'b' } },
{ data: { id: 'c' } },
{
data: {
id: 'ab',
source: 'a',
target: 'b'
}
},
{
data: {
id: 'ac',
source: 'a',
target: 'c'
}
}
]
});
Then I added a function which adds a new node whenever the user double clicks on the viewport.
var nid = 1;
document.getElementById("cy").ondblclick = function(e) {
cy.add({ data: { id: nid }, renderedPosition: { x: e.x, y: e.y } });
nid++;
};
Then I wrote this function which should be called whenever user clicks a node. It works whenever user clicks on a node which I added manually when initializing the cytoscape but the problem is its not working for the nodes which user added by double clicking.
cy.$('node').on('click', function (e) {
console.log('node clicked: ', e.target.id());
});
Any idea what am I doing wrong?
200
asked Dec 04 '25 11:12
I have a working version of your code here:
var cy = (window.cy = cytoscape({
container: document.getElementById("cy"),
boxSelectionEnabled: false,
autounselectify: true,
style: [{
selector: "node",
css: {
"label": "data(id)",
"text-valign": "center",
"text-halign": "center",
"background-color": "data(faveColor)"
}
},
{
selector: "edge",
css: {
"curve-style": "bezier",
"control-point-step-size": 40,
"target-arrow-shape": "triangle"
}
}
],
elements: {
nodes: [{
data: {
id: "a",
faveColor: "#2763c4"
}
},
{
data: {
id: "b",
faveColor: "#37a32d"
}
},
{
data: {
id: "c",
faveColor: "#37a32d"
}
}
],
edges: [{
data: {
source: "a",
target: "b"
}
},
{
data: {
source: "a",
target: "c"
}
}
]
},
layout: {
name: "dagre"
}
}));
cy.ready(function() {
cy.dblclick();
});
var nid = 0;
cy.bind('dblclick', function(evt) {
cy.add({
group: 'nodes',
data: {
id: nid,
faveColor: 'red'
},
position: {
x: evt.x,
y: evt.y
}
});
nid++;
});
cy.bind('click', 'node', function(evt) {
console.log('node clicked: ', evt.target.id());
});body {
font: 14px helvetica neue, helvetica, arial, sans-serif;
}
#cy {
height: 100%;
width: 100%;
float: right;
position: absolute;
}<html>
<head>
<meta charset=utf-8 />
<meta name="viewport" content="user-scalable=no, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, minimal-ui">
<script src="https://unpkg.com/[email protected]/dist/cytoscape.min.js">
</script>
<!-- cyposcape dagre -->
<script src="https://unpkg.com/[email protected]/dist/dagre.js"></script>
<script src="https://cdn.rawgit.com/cytoscape/cytoscape.js-dagre/1.5.0/cytoscape-dagre.js"></script>
<script src="https://unpkg.com/cytoscape-dblclick/dist/index.js"></script>
</head>
<body>
<div id="cy"></div>
</body>
</html>I used the cy.on()/cy.bind() method, that seems to work with newly added nodes :)
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