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https://issues.apache.org/jira/browse/WICKET-4471?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13238406#comment-13238406
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Ronald Tetsuo Miura commented on WICKET-4471:
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This solves the dependencies between scripts, but we still have to download a
number of different files.
I was thinking about the possibility of joining, for example, jquery.js,
wicket-event.js, wicket-ajax.js, modal.js, calendar-min.js, wicket-date.js, and
any other javascript file needed by components into a single, minified file, to
optimize its download (and since you resolved issue WICKET-4466, we could
easily host it in a CDN).
It's possible to do it with jquery.js, wicket-event.js, and wicket-ajax.js (by
seting the same resource reference for all of them), but not with other
javascript files scattered across the various built-in components (ModalWindow,
DateTimeField), nor with third-party components.
I don't think it'd be feasible to do it transparently to third-party
components, but if there was a generic mechanism built-in the framework, new
libraries/versions of libraries could use it instead of creating their own
custom mechanisms.
Not really a must-have feature, but nice for hard-core optimizations some
people need.
> Generic registry of javascript/css resource references
> ------------------------------------------------------
>
> Key: WICKET-4471
> URL: https://issues.apache.org/jira/browse/WICKET-4471
> Project: Wicket
> Issue Type: Improvement
> Components: wicket
> Affects Versions: 6.0.0-beta1
> Reporter: Ronald Tetsuo Miura
> Priority: Minor
>
> It would be nice if JavaScriptLibrarySettings had a generic mechanism to
> register javascript/css resource references (maybe using something like
> MetaDataKeys).
> This way, extension/third-party components (ModalWindow, DateTimeField, etc.)
> could register their resources, or just lookup for substitute resource
> references for their own scripts/stylesheets.
> This would allow some optimizations, such as minification/compression and
> joining many files into one, and hosting static files in CDNs.
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