Eric, thank you very much for your reply! This definitely clears
things up.

Using runAsync with the gadget linker gives you a message saying that
you cannot have multiple fragments with that linker. (that seems to be
the same message I get when using the XS linker)

Maybe I will look into the runAsync support :) But so far I haven't
found a lot of resources on how linkers work (and what primary and
secondary ones are), so we'll see. And I'll definitely check whether
ClientBundles work.

Off-Topic (as is most of this post): Wouldn't it be a good idea to
bake the selection script into regular HTML host pages, as well?

Cheers, Jonas




On Feb 10, 11:30 pm, zundel <[email protected]> wrote:
> I am the current maintainer of the gwt-gadgets API.
>
> The primary purpose of the gwt-gadgets linker is simplify wrapping up
> your gadget application into a gadget spec, reduces one layer of
> script in loading your gadget, and to wrap the gadgets API.  You can
> also write a gadget by hand-authoring the gadget spec, providing your
> own JSNI bindings to the Gadget API and deploy as a regular GWT app.
> A disadvantage to this approach is that your gadget spec will load the
> selection script, which will then pull in your specific permutation.
> In the gadget generated spec, the selection script is baked in to the
> gadget spec.
>
> Just to clear a few things up:
>
>   - The gadget linker does support using different permutations.
>   - As a primary linker, it can affect some features, I'm not sure
> which ones.  Some of them are implemented as secondary linkers.  I've
> never tried to use 'runAsync' with it, for example.
>   - You are right, there have been few updates to the gadget linker
> recently.  I last made changes for the last gwt-google-apis release
> last year sometime.
>   - It uses the legacy gadget spec and hasn't been updated for the
> Open Social gadget spec.
>
> I'm hoping we'll have some more work done on the gadget bindings
> soon.  In the mean time, if there is something someone wants to
> contribute, please feel free to discuss or post a patch on the gwt-
> google-apis group.
>
> -Eric.
>
> On Feb 11, 5:37 pm, Jonas Huckestein <[email protected]> wrote:
>
> > Wow, I never knew the gadget linker did not support any of these
> > features. Is there any reason for that? In that case we could also try
> > to improve on the linker :)
>
> > I didn't know about shindig either, but from the looks of it, we would
> > have to build a GWT wrapper around it first.
>
> > So here's what my final goal and masterplan is:
> >  - I want to develop wave gadgets using ALL of GWTs features
> >  - I want to test in hosted mode with multiple versions of the gadget
> > running side by side
> >  - I want to be able to simulate mode changes and participant updates
> > all from one interface
>
> > I thought I was pretty close but the gadget linker not working with
> > some of GWTs power features is a real letdown! So does anybody have
> > any ideas how to build what I want to build in another way?
>
> > I didn't understand your point about why you cannot put a web
> > application in a gadget container, though. Using JSONP you can develop
> > any application you want and connect it to a webservice. There is no
> > reason for this to be slower than anything that doesn't run in a
> > gadget container. (I don't know what opensocial's makerequest does,
> > though).
>
> > Cheers, Jonas
>
> > On Feb 10, 8:11 pm, dougx <[email protected]> wrote:
>
> > > Hm.
>
> > > I've never been a fan of gadgets. It's always seemed rather contrived
> > > to me, to suggest you can have an entire web application all wrapped
> > > up in a single xml file.
>
> > > All of the open social applications you'll find in the real world make
> > > use of makeRequest() and server side services; the way you would
> > > expect a modern web application to. In fact, I'd argue the huge delay
> > > in adding makeRequest() and the REST api is why Hi5 and Myspace
> > > applications never took off the way Facebook ones did (traffic too, to
> > > be fair).
>
> > > Still, practically speaking I strongly advise you not to use the
> > > gadget linker. It's old, barely supported (seriously, look at the
> > > change log...), generates very large files (no cute splitting into per-
> > > browser components like the normal linker does), and makes several of
> > > the powerful GWT features available; specifically RPC, code splitting,
> > > debugging and resource bundles.
>
> > > Still, you know. It's kind of fun for tooling around and making little
> > > bits and pieces with I guess.
>
> > > Regarding the wave container... I suspect we're re-inventing the
> > > wheel; I wonder if it wouldn't be a better plan to implement an
> > > independent wave client container on top of shindig (http://
> > > shindig.apache.org/) ...
>
> > > ~
> > > Doug.
>
> > > On Feb 11, 10:32 am, Jonas Huckestein <[email protected]> wrote:
>
> > > > Hi Doug,
>
> > > > nice, I didn't think of using a normal GWT application as a wave
> > > > gadget like that before. But I think that is just a way of manually
> > > > doing what the Gadget API for GWT is doing for you.
>
> > > > What you said about being able to see two different views of the
> > > > gadget side by side in local testing is easily accomplished in
> > > > WaveConnector (actually it's the primary design goal). We can view two
> > > > versions of the Gadget (which is no more than a GWT widget) side by
> > > > side in a browser. All we need to do is give them two different
> > > > eventBuses (to prevent them from interfering with one another) and
> > > > make sure that wave-related events are shared across the buses. (more
> > > > generally using singletons in the GWT widget might cause problems).
>
> > > > I don't think there is need to include a server in order to test the
> > > > gadget with more than one participant :)
>
> > > > We can also add a user interface to add/remove participants, switch
> > > > the wave mode etc.. I will try to get this done next week.
>
> > > > Thanks for your feedback. I'm glad you liked it!
>
> > > > Cheers, Jonas
>
> > > > On Feb 10, 6:08 pm, dougx <[email protected]> wrote:
>
> > > > > Mmm... did you realize you can use a normal GWT application in wave as
> > > > > a gadget?
>
> > > > > All you need is a frame:
> > > > > <?xml version="1.0" encoding="UTF-8" ?>
> > > > > <Module>
> > > > > <ModulePrefs title="State Example" height="220">
> > > > >   <Require feature="wave" />
> > > > > </ModulePrefs>
> > > > > <Content type="html">
> > > > > <![CDATA[
> > > > > <html>
> > > > >   <head>
> > > > >     <meta http-equiv="content-type" content="text/html;
> > > > > charset=UTF-8">
> > > > >     <script type="text/javascript" src="http://xxx.appspot.com/xxx/
> > > > > xxx.nocache.js"></script>
> > > > >     <link type="text/css" rel="stylesheet" 
> > > > > href="http:/xxx.appspot.com/
> > > > > xxx/xxx.css">
> > > > >     <title>Jewels</title>
> > > > >   </head>
> > > > >   <body>
> > > > >   </body>
> > > > > </html>
> > > > >  ]]>
> > > > > </Content>
> > > > > </Module>
>
> > > > > Then use the cross domain compiler to compile the code (this is
> > > > > actually exactly what it's for...):
> > > > > <?xml version="1.0" encoding="UTF-8"?>
> > > > > <!DOCTYPE module PUBLIC "-//Google Inc.//DTD Google Web Toolkit 
> > > > > 1.7.0//
> > > > > EN" "http://google-web-toolkit.googlecode.com/svn/tags/1.7.0/distro-
> > > > > source/core/src/gwt-module.dtd">
> > > > > <module rename-to='xxx'>
> > > > >   <inherits name='com.google.gwt.user.User'/>
> > > > >   <inherits name='com.google.gwt.user.theme.standard.Standard'/>
> > > > >   <entry-point class='com.hax.wave.xxx.client.XXXWidget'/>
> > > > >   <add-linker name="xs"/> <-- You _must_ include this step to access
> > > > > teh wave API.
> > > > > </module>
>
> > > > > And finally, use JSNI to access the wave api:
> > > > > public static native boolean isInWaveContainer() throws Exception /*-{
> > > > >   var rtn = false;
> > > > >   if (($wnd.wave) && ($wnd.wave.isInWaveContainer()))
> > > > >     rtn = true;
> > > > >   return(rtn);
>
> > > > > }-*/;
>
> > > > > ...
>
> > > > > So yeah. Might find that helpful. Note that in 2.0 you can't debug
> > > > > using the xs linker, so you'll need to comment that line out while
> > > > > you're developing your widget, and then put it back when you do a
> > > > > deployment build.
>
> > > > > That wave connector is very cool; nice work! :)
>
> > > > > Hm... I wonder if we could add an app engine based data store based
> > > > > state so just when you're debugging locally you can have two browser
> > > > > windows open and it'll treat those as different viewers of the gadget,
> > > > > so you can do full testing. That'd involve defining separate servlet
> > > > > end points though; perhaps it'd be better as a separate gwt
> > > > > application, and you can include it on your testing pages...
>
> > > > > ~
> > > > > Doug.
>
> > > > > On Feb 11, 7:42 am, Jonas Huckestein <[email protected]> wrote:
>
> > > > > > Hi Everybody,
>
> > > > > > I have just released WaveConnector - a turnkey solution for 
> > > > > > developing
> > > > > > wave gadgets using GWT and testing them in hosted mode. Please head
> > > > > > over to my blog 
> > > > > > athttp://thezukunft.comortheprojectpageathttp://code.google.com/p/wavec....
> > > > > >  It's as easy
> > > > > > as downloading a zip archive :D
>
> > > > > > Chris, how di you achieve the 90%? I assume you must also decouple 
> > > > > > the
> > > > > > GWT code from the Gadget/Wave API? I have simply implemented a mock
> > > > > > version of the wave API. That way I think I can do all testing
> > > > > > locally.
>
> > > > > > Kayode, WaveConnector is exactly the mock framework (+ some
> > > > > > convenience functions) I was talking about :)
>
> > > > > > Sorry for this shameless selfpromotion on this board but I think 
> > > > > > this
> > > > > > might actually help a lot of people or get them to develop for Wave 
> > > > > > in
> > > > > > the first place.
>
> > > > > > What do all of you think of a dedicated Wave+GWT group? I asked that
> > > > > > question on the GWT groups earlier and people seemed to be 
> > > > > > interested.
>
> > > > > > Cheers, Jonas
>
> > > > > > This is my first ever open source contribution so please give me
> > > > > > comments and feedback on my blog or the project page.
>
> > > > > > On Feb 10, 2:07 am, HaiColon <[email protected]> wrote:
>
> > > > > > > What I do is I write the gadget in a way that makes it work both
> > > > > > > locally (or as a website on a remote server) and then I add a 
> > > > > > > layer on
> > > > > > > top that makes it work with Google Wave. That way I can test 90% 
> > > > > > > of
> > > > > > > the gadget locally, no problem. And for the other 10% I just use 
> > > > > > > the
> > > > > > > debug features of the sandbox Wave client. That has worked good 
> > > > > > > so far
> > > > > > > even for bigger/more involved gadgets and the bonus is that your
> > > > > > > gadget then doesn't need to be Wave exclusive.
>
> > > > > > > If you'd want to use a test-driven
>
> ...
>
> read more »

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