Portlet for Google Map, problem with Refresh

[cedorman65]

I am trying to put a Google Map into a portlet. It is easy enough to have
an html fragment that pulls in the google map javascript, add a button,
and when the user clicks on the button, draws the map. It looks like:



<script LANGUAGE=JavaScript>
function loadMap() {
if (GBrowserIsCompatible()) {
var map = new GMap2(document.getElementById("map"));
map.setCenter(new GLatLng(0.0, 0.0), 5);
}
}




The problem is that if I include this in a doView fn, then every time that a refresh is done, it replaces the map with a new map. I don't really have
a handle on the state of the map (zoom, lat/long, overlays, etc.) so I can't
tell it to redraw it's current state. I would not want to anyway.

I would think that the same problem would happen with most Ajax / dhtml apps. Since the state of the stuff inside the portlet is stored somewhere else, for example, on the client, the state gets lost when a refresh is done. Is there anyway to tell the portal to not refresh, or how do I write doView so that it leaves it alone after initialization?

Clark

[mholzner]

set the caching time to infinit (-1). That way the content should be cached after the first render until the portlet receives a render or action request that is directly targeted at the instance.... (in theory at least ;)

[cedorman65]

Thanks, I'll give it a try and report back.

[rutfield]

I was just wondering if that worked for you.

I would like to put together a prototype and adding Google maps would be a nice enhancement.

What did you do to make it work? Was there anything unique about the code? I'd like to avoid simply putting it in an iframe portlet.

Thanks.