I'm using the following code to create the legends in Openlayers http://viglino.github.io/ol-ext/examples/legend/map.control.legendstat.html.
A question, I would like to insert html tag, for example, the link to a page. It's possible?
You can inspect the code of the example on the site. You will see the following
legend.addItem({ title:'2.600.000', properties: { pop: 2600000 }, typeGeom: 'Point'});
The added row's fire a select event, so you could add a title and your href link to the properties and open that link on select.
Here is a better example of this component: https://viglino.github.io/ol-ext/examples/legend/map.control.legend.html
EDIT:
const legend = new ol.legend.Legend({
title: 'Legend',
})
const legendCtrl = new ol.control.Legend({
legend: legend,
collapsed: false
});
legend.addItem({ title: 'Google', properties: {link: 'http://www.google.com'} });
legend.addItem({ title: 'Apple', properties: {link: 'http://www.apple.com'} });
legend.on('select', function(event) {
window.open(event.item.get('properties').link);
});