I need to add Enter or Spacebar event for accessibility. it works when you click from mouse but doesn't work with Enter or Spacebar
plotOptions: {
series: {
allowPointSelect: false,
cursor: 'pointer',
events: {
click: function(e) {
alert(this.series.name + " clicked")
const point = e.point;
this.goToBackgroundData(point.answerId);
}
},
Related
I have a map and want to detect whenever it is zoomed or panned by the user. I understand that best way to do this would seem to be with the afterSetExtremes event.
I'm using buttons to zoom but the user can double click to zoom in too and pan.
The event doesn't seem to fire though but I'm not sure what I'm doing wrong or if there is another event I should be using to achieve this. Here's a JSFiddle which is based on one of the Highmaps demos, just with the event added:
https://jsfiddle.net/nbymstxe/
What am I doing wrong?
Highcharts.getJSON('https://cdn.jsdelivr.net/gh/highcharts/highcharts#v7.0.0/samples/data/world-population-density.json', function (data) {
// Prevent logarithmic errors in color calulcation
data.forEach(function (p) {
p.value = (p.value < 1 ? 1 : p.value);
});
// Initialize the chart
Highcharts.mapChart('container', {
chart: {
map: 'custom/world'
},
title: {
text: 'Zoom in on country by double click'
},
mapNavigation: {
enabled: true,
enableDoubleClickZoomTo: true
},
colorAxis: {
min: 1,
max: 1000,
type: 'logarithmic'
},
xAxis: {
events: {
afterSetExtremes() {
console.log("Extremes set");
}
},
},
series: [{
data: data,
joinBy: ['iso-a3', 'code3'],
name: 'Population density',
states: {
hover: {
color: '#a4edba'
}
},
tooltip: {
valueSuffix: '/km²'
}
}]
});
});
I think that you can use the render callback to detect when user has zoomed or panned the chart.
events: {
render() {
console.log(this.mapView)
}
}
Demo: https://jsfiddle.net/BlackLabel/zpn5goaj/
API: https://api.highcharts.com/highcharts/chart.events.render
I form charts and a have such series format:
series: {
id : '001',
name: 'name,
data: [],
color: '#fff'
}
In plotOptions I created onClick event:
plotOptions: {
series: {
stacking: 'normal',
cursor: 'pointer',
allowPointSelect: true,
marker: {
states: {
select: {
enabled: true
}
}
},
point: {
events: {
click: function () {
console.log('!!!!!', this);
}
}
}
}
}
After clock i get object in log. There is all information except id: '001'. How can I get it?
You attached the click event to the point, so this inside the callback refer to the point object. Id is defined in series' options.
You can access it from series.options object:
point: {
events: {
click: function() {
console.log('!!!!!', this.series.options.id);
}
}
}
live example: http://jsfiddle.net/4s3ayhfy/
I have a highchart in my app. This is part of the chart_options:
plotOptions: {
column: {
pointWidth: 20
},
series: {
cursor: 'pointer',
events: {
click: function (event) {
//debugger;
}
}
}
}
Please check the line on which the debuggers is. Previously I hade there: event.point.pageY and I got the exact position of closest point of the click event.
After I updated my Highcharts version, event.point.pageY is undefined. How do I get this value?
How to determine the coordinates of the point where the CLICK was made. If the CLICK was made exactly on the line of the graphic (not on the point of the graphic).
chart: {
events: {
click: function(event) {}
}
},
Not work
I think you should use plotOptions.series.events.click, not chart.events.click. Then simply set tooltip.snap = 1 to get clicks only when cursor is really close to the line/point. To get coordinates use event.chartX and event.chartY:
tooltip: {
snap: 1
},
plotOptions: {
series: {
events: {
click: function (e) {
console.log(e.chartX, e.chartY);
}
},
}
},
Demo: http://jsfiddle.net/dxj7wemh/
I have a problem with click events on heatmaps: it works only if you click on a tooltip, but not on the chart itself. See the demo http://jsfiddle.net/3UWaA/1/
chart: {
type: 'heatmap',
events: {
click: function(event) {
alert("clicked!");
}
}
}
Any suggestions how to fix this?
Thanks
Add the events into a plotOptions object.
Like this:
plotOptions: {
series: {
events: {
click: function (event) {
alert('event!');
}
}
}
},
Demo: http://jsfiddle.net/robschmuecker/3UWaA/3/
Because click event on chart, works in the plotArea, not on the serie. Heatmap serie overlap plotArea, so click event doesnt work. You need to catch plotOptions event on serie / point.
Try inserting the EVENTS: under series block and disable the tooltip as below:
series:
[
{ name: 'Passed',
borderWidth: '1',
borderColor: '#000000',
cursor: 'pointer',
events:
{
click: function ()
{
alert('wow');
}
},
color:'green',
data: [[0, 1, ''],[0, 2, ''],[0, 3, '']],
dataLabels:
{
enabled: 'true',
color: '#000000'
}
}
]
So when you click the chart itself,click event will work fine.