The mv_embed.js includes a doLoad function that matches the autoLoadJS
classes listed in mediaWiki php. So you can dynamically "autoload"
arbitrary "sets" of classes (js-files in the mediaWiki software) in a
single http request and then run something once they are loaded.
It can also "autoload" sets of wiki-titles for user-space scripts again
in a single request grouping, localizing, gziping and caching all the
requested wiki-title js in a single request. This is nifty cuz say your
script has localized msg. You can fill these in in user-space
MediaWiki:myMsg then put them in the header of your user-script, then
have localized msg in user-space javascript ;) .. When I get a chance I
will better document this ;) But its basically outlined here:
http://www.mediawiki.org/wiki/Extension:ScriptLoader
The link you highlight appears to be about running stuff once the page
is ready. jQuery includes a function $(document).ready(function(){
//code to run now that the dom-state is ready }) so your enabled gadget
could use that to make sure the dom is ready before executing some
functions.
(Depending on the type of js functionality your adding it /may/ be
better to load on-demand once a new interface component is invoked
rather than front load everything. Looking at the add-media-wizard
gadget on testing.wikipedia.org for an idea of how this works.
peace,
--michael
Sergey Chernyshev wrote:
> Yep, with jQuery in the core it's probably best to just bundle it.
>
> There is another issue with the code loading and stuff - making JS libraries
> call a callback function when they load and all the functionality to be
> there instead of relying on browser to block everything until library is
> loaded. This is quite advance thing considering that all the code will have
> to be converted to this model, but it will allow for much better performance
> when implemented. Still it's probably "Phase 5" kind of optimization, but it
> can bring really good results considering JS being the biggest blocker.
>
> More on the topic is on Steve Souders' blog:
> http://www.stevesouders.com/blog/2008/12/27/coupling-async-scripts/
>
> Thank you,
>
> Sergey
>
>
> --
> Sergey Chernyshev
> http://www.sergeychernyshev.com/
>
>
> On Wed, Apr 22, 2009 at 12:42 PM, Brion Vibber <br...@wikimedia.org> wrote:
>
>
>> On 4/22/09 9:33 AM, Sergey Chernyshev wrote:
>>
>>> Exactly because this is the kind of requests we're going to get, I think
>>>
>> it
>>
>>> makes sense not to have any library bundled by default, but have a
>>> centralized handling for libraries, e.g. one extension asks for latest
>>> jQuery and latest YUI and MW loads them, another extension asks for
>>>
>> jQuery
>>
>>> only and so on.
>>>
>> Considering we want core code to be able to use jQuery, I think the case
>> for bundling it is pretty strong. :)
>>
>> -- brion
>>
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