[OpenLayers-Users] changelayer event

[Franz Buchinger]

Hi Mengu,

I suppose you want to detect the newly activated baselayer in the layer
switcher.

If you activate a new baselayer in the layer switcher, you actually trigger
2 changelayer events: 1 for the old baselayer (because it gets invisible)
and 1 for the new baselayer (because it gets visible).

The problem is your alert-Statement in the callback. It blocks the
triggering of the second changelayer event, because all Javascripts pause
until you hit <ok>. If you perform a non-blocking logging action (e.g. write
to console.log or in a logging div) you should see the 2 events.

Or simply follow Barts advice.

Franz


2010/8/4 Mengu <mengukagan at gmail.com>

>
> Hello Bart,
>
> Thanks for the reply.
>
> I have tried e.layer.name and e.layer.map.baseLayer.name and both provides
> me the previously selected layer's name.
>
> Is there events that I should listen instead of map's "changelayer" event?
> Maybe there's something for LayerSwitcher?
> --
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> http://osgeo-org.1803224.n2.nabble.com/changelayer-event-tp5372564p5372665.html
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