[OpenLayers-Users] Showing OpenLayers.​Popup when marker is hovered

[Daniel Werner]

Hi,

I want to create a hover popup effect for map markers. Right now popups 
are displayed when klicking on a marker, now I want to show them when 
the mouse is over the marker and it should vanish when mouse goes down 
from the marker. If the marker is klicked, the popup should stay and get 
the close icon.

First, OpenLayers.​Popup.addCloseBox() creates the close box in the 
wrong place, can't figure out why since this is the case even if I call 
it like this:

var popup = new OpenLayers.Feature( markerLayer, this.lonlat 
).createPopup( false );
popup.addCloseBox( function(){ this.feature.destroy(); } );

This seems odd since createPopup() would be called from createPopup( 
true ) in the end and there it works fine. A way to register a custom 
callback for the close event would help too, but there is no function 
for that only one parameter in the popup constructor (which I can't set 
when using OpenLayers.Feature) and it can be set with addCloseBox() but 
since the bug above I can't use it either.

Now the main problem:
The hover effect works fine when the popup appears in the left or right 
bottom corner. If its on the top it won't work fine because the popup 
will be on top of the marker and my 'mouseout' event is triggered too 
early, namely when the popup appears on top of the marker and the mouse 
is on top of it, now JS will trigger the 'mouseout' for the marker event 
though, visually, the mouse is still on top of the marker.
Now all that wouldn't be much of a problem if the popups dom would be a 
descendant of the marker. But it is not, it's totally independent. So I 
tried to add a 'mousemove' event to the popup and do some pixel 
calculation to check whether the mouse is still visually on top of the 
marker. This works except that the popup starts a few pixels above the 
marker, so if the mouse leaves at the bottom, it doesn't work perfectly.

Is there any better solution for this? Is ist posible to make the popups 
dom the markers descendant somehow??

Thanks for any help
Daniel