From: "Vojtech Szocs" <vszocs(a)redhat.com&gt; To: "Greg Sheremeta" <gshereme(a)redhat.com&gt; Cc: devel(a)ovirt.org, "Alexander Wels" <awels(a)redhat.com&gt; Sent: Thursday, June 5, 2014 9:26:19 AM Subject: Re: jQuery? ----- Original Message ----- > From: "Greg Sheremeta" <gshereme(a)redhat.com&gt; > To: devel(a)ovirt.org > Cc: "Alexander Wels" <awels(a)redhat.com&gt;, "Vojtech Szocs" > <vszocs(a)redhat.com&gt; > Sent: Wednesday, June 4, 2014 3:19:23 AM > Subject: jQuery? > > Does anyone see an issue with adding jQuery to GwtHostPage? Some PatternFly > widgets require bootstrap.min.js which requires jQuery. My understanding is that PatternFly is essentially a "skin" of Bootstrap CSS, which doesn't imply the need for using Bootstrap _JavaScript_ library (which needs jQuery) to deal with widgets in JavaScript runtime.

I thought that the purpose of "gwtbootstrap3" GWT module (integration with Bootstrap CSS framework) was to provide such widgets in context of GWT app. If not, what is then the purpose of "gwtbootstrap3" module?

In other words, doesn't "gwtbootstrap3" module provide us with all widgets we need?

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

From: "Vojtech Szocs" <vszocs(a)redhat.com&gt; To: "Greg Sheremeta" <gshereme(a)redhat.com&gt; Cc: devel(a)ovirt.org, "Alexander Wels" <awels(a)redhat.com&gt; Sent: Thursday, June 5, 2014 10:49:45 AM Subject: Re: jQuery? ----- Original Message ----- > From: "Greg Sheremeta" <gshereme(a)redhat.com&gt; > To: "Vojtech Szocs" <vszocs(a)redhat.com&gt; > Cc: devel(a)ovirt.org, "Alexander Wels" <awels(a)redhat.com&gt; > Sent: Thursday, June 5, 2014 3:44:14 PM > Subject: Re: jQuery? > > ----- Original Message ----- > > From: "Vojtech Szocs" <vszocs(a)redhat.com&gt; > > To: "Greg Sheremeta" <gshereme(a)redhat.com&gt; > > Cc: devel(a)ovirt.org, "Alexander Wels" <awels(a)redhat.com&gt; > > Sent: Thursday, June 5, 2014 9:26:19 AM > > Subject: Re: jQuery? > > > > > > ----- Original Message ----- > > > From: "Greg Sheremeta" <gshereme(a)redhat.com&gt; > > > To: devel(a)ovirt.org > > > Cc: "Alexander Wels" <awels(a)redhat.com&gt;, "Vojtech Szocs" > > > <vszocs(a)redhat.com&gt; > > > Sent: Wednesday, June 4, 2014 3:19:23 AM > > > Subject: jQuery? > > > > > > Does anyone see an issue with adding jQuery to GwtHostPage? Some > > > PatternFly > > > widgets require bootstrap.min.js which requires jQuery. > > > > My understanding is that PatternFly is essentially a "skin" of Bootstrap > > CSS, > > which doesn't imply the need for using Bootstrap _JavaScript_ library > > (which > > needs jQuery) to deal with widgets in JavaScript runtime. > > > > Any JavaScript-enabled widgets (like tooltips) do require bootstrap.js and > jquery.js. I'm not sure this is the only way. gwtbootstrap3 could do the same thing, after all its code becomes JavaScript in the end. I think there is no real difference (conceptually) between bootstrap.js vs gwtbootstrap3, each one can use JavaScript to implement widgets like tooltips. In the end it boils down to styling DOM elements with CSS classes, so Bootstrap CSS framework is the lowest common denominator. > The only reason I didn't add them in the main PatternFly patch > is that we didn't need them back then. But now we need them. Hm, I assume you mean this: http://getbootstrap.com/javascript/#tooltips these are jQuery plugins, apparently bootstrap.js builds on top of jQuery to ease the work with DOM elements. For example: $('#example').tooltip(options) will register mouse listeners on given element that control the tooltip. Anyway, the tooltip behavior is just JavaScript + setting CSS classes, not really related to jQuery. However, I found this: https://github.com/gwtbootstrap3/gwtbootstrap3/blob/master/gwtbootstrap3/... so it seems that gwtbootstrap3 _does_ support things like tooltips. EDIT: see my comment below, Tooltip.java depends on jQuery, you're right. > > > I thought that the purpose of "gwtbootstrap3" GWT module (integration > > with > > Bootstrap CSS framework) was to provide such widgets in context of GWT > > app. > > If not, what is then the purpose of "gwtbootstrap3" module? > > gwtbootstrap3 provides renderings of GWT widgets that are compatible with > bootstrap css. It does not rewrite the jQuery code into GWT-JavaScript > code. > > > > > In other words, doesn't "gwtbootstrap3" module provide us with all > > widgets > > we need? > > I wouldn't say "provide." It enables using the widgets more easily from > GWT. > > Take a look at > https://github.com/gwtbootstrap3/gwtbootstrap3/blob/master/gwtbootstrap3/... > line 521 on down. > > It simply wraps everything for ease-of-use from GWT / UIBinder. You are correct. So gwtbootstrap3 requires jQuery. I didn't know this, just realized this now after looking at Tooltip.java code. So gwtbootstrap3 is just a thin GWT wrapper to bootstrap.js which implies the need for jQuery. (Originally I thought it's not just a thin wrapper.) Considering above, I'm OK with adding jQuery to GWT UI host page. BTW, we could do this via <script> in GwtCommon.gwt.xml which will cause the script to be automatically injected into GWT compilation (permutation) output, so we wouldn't need to modify host page HTML.

However, question is, how/where to maintain jQuery script file(s).

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

From: "Vojtech Szocs" <vszocs(a)redhat.com&gt; To: "Greg Sheremeta" <gshereme(a)redhat.com&gt; Cc: devel(a)ovirt.org, "Alexander Wels" <awels(a)redhat.com&gt; Sent: Thursday, June 5, 2014 12:19:34 PM Subject: Re: jQuery? ----- Original Message ----- > From: "Greg Sheremeta" <gshereme(a)redhat.com&gt; > To: "Vojtech Szocs" <vszocs(a)redhat.com&gt; > Cc: devel(a)ovirt.org, "Alexander Wels" <awels(a)redhat.com&gt; > Sent: Thursday, June 5, 2014 4:58:51 PM > Subject: Re: jQuery? > > > > ----- Original Message ----- > > From: "Vojtech Szocs" <vszocs(a)redhat.com&gt; > > To: "Greg Sheremeta" <gshereme(a)redhat.com&gt; > > Cc: devel(a)ovirt.org, "Alexander Wels" <awels(a)redhat.com&gt; > > Sent: Thursday, June 5, 2014 10:49:45 AM > > Subject: Re: jQuery? > > > > > > > > ----- Original Message ----- > > > From: "Greg Sheremeta" <gshereme(a)redhat.com&gt; > > > To: "Vojtech Szocs" <vszocs(a)redhat.com&gt; > > > Cc: devel(a)ovirt.org, "Alexander Wels" <awels(a)redhat.com&gt; > > > Sent: Thursday, June 5, 2014 3:44:14 PM > > > Subject: Re: jQuery? > > > > > > ----- Original Message ----- > > > > From: "Vojtech Szocs" <vszocs(a)redhat.com&gt; > > > > To: "Greg Sheremeta" <gshereme(a)redhat.com&gt; > > > > Cc: devel(a)ovirt.org, "Alexander Wels" <awels(a)redhat.com&gt; > > > > Sent: Thursday, June 5, 2014 9:26:19 AM > > > > Subject: Re: jQuery? > > > > > > > > > > > > ----- Original Message ----- > > > > > From: "Greg Sheremeta" <gshereme(a)redhat.com&gt; > > > > > To: devel(a)ovirt.org > > > > > Cc: "Alexander Wels" <awels(a)redhat.com&gt;, "Vojtech Szocs" > > > > > <vszocs(a)redhat.com&gt; > > > > > Sent: Wednesday, June 4, 2014 3:19:23 AM > > > > > Subject: jQuery? > > > > > > > > > > Does anyone see an issue with adding jQuery to GwtHostPage? Some > > > > > PatternFly > > > > > widgets require bootstrap.min.js which requires jQuery. > > > > > > > > My understanding is that PatternFly is essentially a "skin" of > > > > Bootstrap > > > > CSS, > > > > which doesn't imply the need for using Bootstrap _JavaScript_ library > > > > (which > > > > needs jQuery) to deal with widgets in JavaScript runtime. > > > > > > > > > > Any JavaScript-enabled widgets (like tooltips) do require bootstrap.js > > > and > > > jquery.js. > > > > I'm not sure this is the only way. gwtbootstrap3 could do the same thing, > > after all its code becomes JavaScript in the end. I think there is no > > real > > difference (conceptually) between bootstrap.js vs gwtbootstrap3, each one > > can use JavaScript to implement widgets like tooltips. In the end it > > boils > > down to styling DOM elements with CSS classes, so Bootstrap CSS framework > > is the lowest common denominator. > > > > > The only reason I didn't add them in the main PatternFly patch > > > is that we didn't need them back then. But now we need them. > > > > Hm, I assume you mean this: > > > > http://getbootstrap.com/javascript/#tooltips > > > > these are jQuery plugins, apparently bootstrap.js builds on top of jQuery > > to ease the work with DOM elements. For example: > > > > $('#example').tooltip(options) > > > > will register mouse listeners on given element that control the tooltip. > > > > Anyway, the tooltip behavior is just JavaScript + setting CSS classes, > > not really related to jQuery. > > > > However, I found this: > > > > https://github.com/gwtbootstrap3/gwtbootstrap3/blob/master/gwtbootstrap3/... > > > > so it seems that gwtbootstrap3 _does_ support things like tooltips. > > > > EDIT: see my comment below, Tooltip.java depends on jQuery, you're right. > > > > > > > > > I thought that the purpose of "gwtbootstrap3" GWT module (integration > > > > with > > > > Bootstrap CSS framework) was to provide such widgets in context of > > > > GWT > > > > app. > > > > If not, what is then the purpose of "gwtbootstrap3" module? > > > > > > gwtbootstrap3 provides renderings of GWT widgets that are compatible > > > with > > > bootstrap css. It does not rewrite the jQuery code into GWT-JavaScript > > > code. > > > > > > > > > > > In other words, doesn't "gwtbootstrap3" module provide us with all > > > > widgets > > > > we need? > > > > > > I wouldn't say "provide." It enables using the widgets more easily from > > > GWT. > > > > > > Take a look at > > > https://github.com/gwtbootstrap3/gwtbootstrap3/blob/master/gwtbootstrap3/... > > > line 521 on down. > > > > > > It simply wraps everything for ease-of-use from GWT / UIBinder. > > > > You are correct. So gwtbootstrap3 requires jQuery. I didn't know > > this, just realized this now after looking at Tooltip.java code. > > > > So gwtbootstrap3 is just a thin GWT wrapper to bootstrap.js which > > implies the need for jQuery. (Originally I thought it's not just > > a thin wrapper.) > > > > Considering above, I'm OK with adding jQuery to GWT UI host page. > > > > BTW, we could do this via <script> in GwtCommon.gwt.xml which will > > cause the script to be automatically injected into GWT compilation > > (permutation) output, so we wouldn't need to modify host page HTML. > > > > Noted, thanks. > > > However, question is, how/where to maintain jQuery script file(s). > > I have to RPM package gwtbootstrap3 and patternfly, so I'll just add > it in one of those RPMs. Probably the patternfly one. It'll be an > additional Source in the spec. Sound ok? gwtbootstrap3-0.6.jar actually contains CSS/JS/fonts of Bootstrap plus jquery-1.11.0.min.js, its NoThemeResources.gwt.xml module exposes all of these files as public resources of the GWT application: <public path="resource"> <include name="css/*.css"/> <include name="js/*.js"/> <include name="fonts/*"/> </public> (Note: GwtBootstrap3NoTheme inherits NoThemeResources.) All public resources should be copied into final WAR output during GWT application build. This means we could use jquery-1.11.0.min.js bundled within gwtbootstrap3. What do you think?

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

From: "Einav Cohen" <ecohen(a)redhat.com&gt; To: "Greg Sheremeta" <gshereme(a)redhat.com&gt; Cc: devel(a)ovirt.org Sent: Thursday, June 5, 2014 11:43:24 AM Subject: Re: [ovirt-devel] jQuery? > ----- Original Message ----- > From: "Greg Sheremeta" <gshereme(a)redhat.com&gt; > 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?

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

> > Thanks, > Greg > > Greg Sheremeta > Red Hat, Inc. > Sr. Software Engineer, RHEV > Cell: 919-807-1086 > gshereme(a)redhat.com > > _______________________________________________ > Devel mailing list > Devel(a)ovirt.org > http://lists.ovirt.org/mailman/listinfo/devel >

From: "Vojtech Szocs" <vszocs(a)redhat.com&gt; To: "Greg Sheremeta" <gshereme(a)redhat.com&gt; Cc: "Einav Cohen" <ecohen(a)redhat.com&gt;, devel(a)ovirt.org Sent: Thursday, June 5, 2014 12:29:41 PM Subject: Re: [ovirt-devel] jQuery? ----- Original Message ----- > From: "Greg Sheremeta" <gshereme(a)redhat.com&gt; > To: "Einav Cohen" <ecohen(a)redhat.com&gt; > Cc: devel(a)ovirt.org > Sent: Thursday, June 5, 2014 5:51:08 PM > Subject: Re: [ovirt-devel] jQuery? > > > > ----- Original Message ----- > > From: "Einav Cohen" <ecohen(a)redhat.com&gt; > > To: "Greg Sheremeta" <gshereme(a)redhat.com&gt; > > Cc: devel(a)ovirt.org > > Sent: Thursday, June 5, 2014 11:43:24 AM > > Subject: Re: [ovirt-devel] jQuery? > > > > > ----- Original Message ----- > > > From: "Greg Sheremeta" <gshereme(a)redhat.com&gt; > > > 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. +1 this is my understanding as well. > > 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 :( In cases like this one, could we close/destroy the tooltip via GWT JSNI code?

> > > > > - 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. Exactly, any direct use of jQuery should be justified by a solid reason. > > Greg > > > > > > > > > Thanks, > > > Greg > > > > > > Greg Sheremeta > > > Red Hat, Inc. > > > Sr. Software Engineer, RHEV > > > Cell: 919-807-1086 > > > gshereme(a)redhat.com > > > > > > _______________________________________________ > > > Devel mailing list > > > Devel(a)ovirt.org > > > http://lists.ovirt.org/mailman/listinfo/devel > > > > > > _______________________________________________ > Devel mailing list > Devel(a)ovirt.org > http://lists.ovirt.org/mailman/listinfo/devel >