Triggering Leaflet's Mouseout function during a MouseOver event

I am working on a leaflet map project where I am dynamically adding markers.

One of my goals is to have the marker's popup appear not only when clicked, but also when the user hovers over it.

This is the code snippet I have been using:

function makeMarker(){
   var Marker = L.marker...
   Marker.on('mouseover', function(){Marker.bindPopup('HI').openPopup();});

   Marker.on('mouseout', function(){Marker.closePopup();});
}

However, I encountered an issue. When I comment out the 'mouseout' line, the popup appears but then requires another click elsewhere to close. But when I include the 'mouseout' event, the cursor flickers and nothing shows up when hovering over the marker. It seems like the popup is opening and closing rapidly causing this flickering effect, but I'm unsure how to resolve this issue.

javascriptjquerycsspopupleaflet

Answer №1

Although this is an older discussion, I recently encountered the same issue and wanted to share my solution. Instead of adjusting the popup's position, I found a way to prevent it from intercepting mouse events using CSS:

.my-popup {pointer-events: none;}

I then applied the 'my-popup' class to the popup element like this:

Marker.on('mouseover', function () {Marker.bindPopup('HI', {className: 'my-popup'}).openPopup();})

Hopefully, this tip will assist someone else facing a similar challenge :)

Answer №2

The popup appears to be loading below the cursor and taking control of the mouse, causing the Marker's mouseout() event to trigger, which in turn closes the popup and restarts the Marker's mouseover() event... creating a flickering effect.

This issue seems to occur more frequently at certain zoom levels, particularly when zoomed out all the way.

To avoid this, try adjusting the popup options by adding an offset:

function createMarker(){
   var Marker = L.marker...
   Marker.on('mouseover', function(){Marker.bindPopup('HELLO', {'offset': L.point(0,-50)}).openPopup();});

   Marker.on('mouseout', function(){Marker.closePopup();});
}

Answer №3

Recently, I encountered this problem once again. Here's a helpful tip for anyone struggling with it:

function createMarker(){
  var Marker = L.marker...
  Marker.bindTooltip('HELLO').openPopup();
}

Instead of using popups with mouseover or other mouse-related events in Leaflet 1.0, you can utilize L.Tooltip which offers smoother functionality and requires less code, especially when opening the popup on hover.

Furthermore, you have the option to use the permanent boolean flag if you wish to keep the tooltip open.

In my scenario, I did not require the popup to open on click along with hover, which may add complexity. Nevertheless, L.Tooltip has gained popularity and there are other Stack Overflow threads addressing this matter.

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