Navigation toolbar is in a corrupt state if created after map.onLoad

Question

I found this issue is a much larger application and narrowed it down to the Navigation toolbar. If the navToolbar is created *after* the map.onLoad event is fired, it is initialized in a corrupt state. There is only a single entry in the _extents array, but the _extentCursor is set to -1. This causes isLastExtent() and isFirstExtent() to both return false and triggers a javascript error when trying to zoomToNext() or zoomToPrev(). I've modified the Navigation Toolbar example to illustrate the problem. Load the example and click on the "Prev Extent" button to get the error. Navigation toolbar

Zoom In

Zoom Out

Full Extent

Prev Extent

Next Extent

Pan

Deactivate

derekswingley1 · Answer

It's a bug and is now logged as NIM072979. It will be addressed in a future release (not 2.5). Until it's fixed, please create your nav toolbar before the map loads.

LucasScharenbroich · Answer

I will take a look. Will post back with what I find...if it is a bug, can you create your nav toolbar before the map loads?

Yes, I've worked around it by creating the navigation toolbar earlier in the application startup process, so no problem there.

Just thought that this seemed close enough to be a real bug to report -- I would expect the navigation toolbar could properly initialize itself regardless of the map's loaded status.

Thanks!

derekswingley1 · Answer

I will take a look. Will post back with what I find...if it is a bug, can you create your nav toolbar before the map loads?