[Mapbender-dev] Ajax library

[Arnulf Christl]

Uli Rothstein wrote:
> Hi,
> 
> I think ajax will provide a more comfortable way to exchange data with 
> the server-side components.
> There are differnt parts in many modules which uses iframes to undertake 
> the tasks of data transfers.
> I propose to implement a gerneral function in the map.php which tries to 
> access a modular included ajax library. So we can switch between the 
> libraries like prototype, sarissa or jquery etc. if it's necessary.
> 
> regards
> Uli

Hi,
Uli and Astrid will remember our meeting with the AJAX tribe at FOSS4G regarding OpenLayers development. There was some discussion regarding which AJAX library to use or whether to not adopt one in order to be more open and flexible later. I would obviously recommend to not adopt one library but do it directly but as I have largely fallen out of actively contributing code this can only come as a side remark. 

There is an AJAX related OSGeo mailing list which could be interesting to join. To subscribe mailto:webmap-discuss-subscribe at mail.osgeo.org and find the archives here:
https://mail.osgeo.org/servlets/SummarizeList?listName=webmap-discuss

There is an OSGeo Wiki page (currently still calling for an own project but I think as it is it serves the purpose fine):
http://wiki.osgeo.org/index.php/AJAX_WebMapping_Project_Request

More fodder:
A painfully more complex issue is being discussed at:
http://wiki.osgeo.org/index.php/AJAX_WebMapping_Vector_Rendering_Design
Currently we sneak around thoroughly addressing this topic by extending Walter Zorn's library but there are more and more related issues. Ideally we can later tap into OpenLayers as rendering engine (it still feels strange to talk of a rendering engine in a HTML framework but this is what is happening). 

Best Regards,
Arnulf. 

> Christoph Baudson schrieb:
>> Hi Michael,
>>
>> thanks for your post.
>>
>> I'm most interested in improving all kinds of wms and wfs requests. 
>> Maybe Uli has something to say about AJAX use in Mapbender as well?
>>
>> Cheers,
>>
>> Christoph
>>
>> Michael Schulz schrieb:
>>> Hi Christoph,
>>>
>>> i have tested so far only some small ajax to enhance the gazetteer
>>> functionality, not with a broader aspect of an ajax library.
>>>
>>> I will have a look into prototype, for another project, so to examine
>>> prototype with respect to mapbender, could you describe which parts of
>>> the mapbender javascript code you would enhance with ajax
>>> functionality?
>>>
>>> Cheers, Michael
>>>
>>>
>>> On 10/25/06, Christoph Baudson <christoph.baudson at ccgis.de> wrote:
>>>> Hi there,
>>>>
>>>> some functions in Mapbender would truly benefit from an AJAX engine.
>>>>
>>>> By now, everthing AJAX-like in Mapbender works with IFrames, which is
>>>> similar, but not as convenient as AJAX, so the architecture of 
>>>> Mapbender
>>>> suffers from the lack of an AJAX-library (more modules with hard to
>>>> follow code, and dependency on frames).
>>>>
>>>> So we should try to start a discussion about AJAX-libraries that are
>>>> suitable for Mapbender. I'm still in the process of understanding the
>>>> impact of AJAX on our project, so any input is welcome.
>>>>
>>>> I found a nice AJAX tutorial (unfortunately in german language only) at
>>>> http://www.teialehrbuch.de/AJAX1-KK/index.html
>>>>
>>>> There are lots of AJAX frameworks like Sarissa, SAJAX, Prototype, 
>>>> JQuery
>>>> and lots more. Sarissa (http://sourceforge.net/projects/sarissa/) is
>>>> more a framework XML-handling and is used in Mapbuilder. I have no idea
>>>> about SAJAX (http://www.modernmethod.com/sajax/) or Prototype, so far I
>>>> have played a little with JQuery (http://www.jquery.com) which is very
>>>> easy to use and simplifies JS code a lot.
>>>>
>>>> If anyone would like to contribute to this discussion I would be more
>>>> than happy.
>>>>
>>>> Thanks, Christoph
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
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>>>>
>>>
>>>
>>
>>
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> 
>