[OpenLayers-Users] Browser back and forward button

[Matthew Doyle]

Many thanks for your responses and musings.

I will have a look at the RSH solution, thank you.

Regards,
Matt



Paul Spencer-5 wrote:
> 
> I've used this before in other applications with some success:
> 
> http://code.google.com/p/reallysimplehistory/
> 
> Cheers
> 
> Paul
> 
> On 30-Jul-08, at 8:42 AM, Christopher Schmidt wrote:
> 
>> 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
>> _______________________________________________
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>> Users at openlayers.org
>> http://openlayers.org/mailman/listinfo/users
> 
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