Repot page tooltip for custom visuals.

Hi

I have created a custom visual which create a map in canvas. I want to activate tooltips for this visual. 

Because I create the map in canvas I can't use addTooltip method because I don't have any actual dom element to select them. So I tried to handle it manually and use show function in tooltipService.

I managed to show default tooltip on hover but I can't create a report page tooltip and can't find out what is the problem. I tried different configurations but all of them display the default tooltip.

Can anyone help me figure this out?

Thanks a lot