[wp-trac] [WordPress Trac] #15381: Rework WP_Scripts to support named groups

[WordPress Trac]

#15381: Rework WP_Scripts to support named groups
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 Reporter:  westi         |       Owner:  westi         
     Type:  defect (bug)  |      Status:  new           
 Priority:  normal        |   Milestone:  Future Release
Component:  JavaScript    |     Version:                
 Severity:  normal        |    Keywords:  3.2-early     
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Comment(by andy):

 Replying to [comment:3 westi]:
 > To think about: http://headjs.com/

 I spent an evening hacking together a plugin that extends WP_Scripts to
 use head.js rather than individual script tags. It worked in the sense
 that it caused the page to load without blocking for the scripts. However,
 it broke several of the most basic scripted function such as the
 collapsing admin menus.

 We commonly use inline scripts with the assumption that dependencies are
 already loaded. When loading scripts with head.js, you can't assume this.
 The fix is simple: wrap the script in a head.js call that delays execution
 until the dependency is fulfilled. You can still use inline scripts; you
 just have to take this little extra step (for which we could build helpers
 into WP_Scripts/WP_Dependencies).

 {{{
 <script>
 // call a function assuming jQuery Tools is loaded
 jQuery(".tip").tooltip();
 </script>
 }}}

 {{{
 <script>
 // call a function immediately after jQuery Tools is loaded
 head.ready("tools", function() {
    $(".tip").tooltip();
 });
 </script>
 }}}

 It is possible to use script concatenation with head.js but I don't think
 it has facilities for one script to fulfill multiple dependencies. I have
 created an [https://github.com/headjs/headjs/issues/issue/11 issue] on the
 head.js project on GitHub.

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Ticket URL: <http://core.trac.wordpress.org/ticket/15381#comment:4>
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