[ovirt-devel] jQuery?

[Greg Sheremeta]

----- Original Message -----
> From: "Einav Cohen" <ecohen at redhat.com>
> To: "Greg Sheremeta" <gshereme at redhat.com>
> Cc: devel at ovirt.org
> Sent: Thursday, June 5, 2014 11:43:24 AM
> Subject: Re: [ovirt-devel] jQuery?
> 
> > ----- Original Message -----
> > From: "Greg Sheremeta" <gshereme at redhat.com>
> > Sent: Tuesday, June 3, 2014 9:19:23 PM
> > 
> > Does anyone see an issue with adding jQuery to GwtHostPage? Some PatternFly
> > widgets require bootstrap.min.js which requires jQuery.
> 
> apologies in advance for the complete ignorance here:
> 
> - is there any kind of potential collision that can occur between the gwt
> javascript and the jQuery javascript?

Namespace collision -- no. jQuery registers itself globally as '$' and 'jQuery',
and neither GWT itself nor our GWT code use those names anywhere.

However, there can be behavior conflicts. I'm currently debugging a problem
where tooltips aren't destroyed when grid refreshes happen. The jQuery widget
doesn't 'know' that the GWT widget it's attached to was destroyed :(

> 
> - is jQuery expected to substantially affect performance / loading time
> on the client side or anything like that?

First-load time will be negligible and cached.

Mass-use of bad selectors could decrease browser performance. I think we should
very rarely use jQuery in oVirt. Usages of it should be very justifiable.

Greg

> 
> > 
> > Thanks,
> > Greg
> > 
> > Greg Sheremeta
> > Red Hat, Inc.
> > Sr. Software Engineer, RHEV
> > Cell: 919-807-1086
> > gshereme at redhat.com
> > 
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>