On Tue, Jul 29, 2008 at 10:19:29PM -0700, Matthew Doyle wrote: > > Hi OpenLayers Users, > > My client has a need to place control on the users browser back and forward > buttons. Simply put, when he does any sort of action like zoom, pan, switch > a layer on, etc. he always assumes that the back button will take him to the > last state he was in within the mapping tool. As such, he has now requested > that this become a feature. > > a) is it possible to control this? The only way i can think of is each time > a user initiates an action, that it is stored in the hashmap in the URL ... > index.html?zoom=1&layers=xxx similar to a permalink that is updated after > every action.
This particular implementation will force a page reload with every action, so is likely not a good choice. There are several sets of resources on the web for solving this problem in various ways: storing data in the post-hash section of the URL, putting data in a hidden iframe and reloading, etc. You'd need to research and pick one. > b) is there any code that anybody has already written to do this? Not that I'm aware of. It's a longstanding feature request with no work done on it so far. Regards, -- Christopher Schmidt MetaCarta _______________________________________________ Users mailing list [email protected] http://openlayers.org/mailman/listinfo/users
