GPX: Invoke _handleLayerMouseOver on the correct layer #54
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… a check for undefined layer to correctly assign the layer which triggers mouseover
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Added the conditional
typeof layer==='undefined'. This ensures thatlayeris correctly assigned to thelineobject that is made available by theaddLinecallback in the GPX use-case. Previously there was only a check fornull, which prevented the correct assignment to the layer that is assigned the mouseover.With the correct assignment,
mouseoveris now triggered on thelineand the corresponding point in the elevation diagram is indicated.Tested on a GPX file @ http://codepen.io/adg29/full/jAzpRo/