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From Christian Fischer <c.fisc...@cs-hertwig.de>
Subject Re: make shure OpenAjax Hub is ready before Userscripts are executed (wookie)
Date Sun, 02 Dec 2012 11:16:56 GMT
Am 01.12.2012 13:06, schrieb Scott Wilson:
> On 3 Sep 2012, at 16:30, Christian Fischer wrote:
>> Am 02.09.2012 18:54, schrieb Scott Wilson:
>>> On 2 Sep 2012, at 17:08, Christian Fischer wrote:
>>>> Am 01.09.2012 11:54, schrieb Scott Wilson:
>>>>> On 1 Sep 2012, at 09:20, Christian Fischer wrote:
>>>>>> Hi all,
>>>>>> Does anyone know how to make shure that the OpenAjax "hub" Instance
of a wookie-iframe-widget is ready and already connected before any user defined scripts are
executed inside the widget?
>>>>>> _Sometimes_ it throws the following ErrorMessage then i'm subsribing
to channels by loading the widget.
>>>>>> Uncaught Error: OpenAjax.hub.Error.Disconnected
>>>>>> For OpenSocial Widgets it's not a problem - these widgets are waiting
until the hub is ready, but wookie not?
>>>>> Yes thats right - I don't know what mechanism is used in Shindig for
this but it would make sense to replicate it in Wookie.
>>>>> The relevant part of the Wookie feature is this:
>>>>> http://svn.apache.org/viewvc/incubator/wookie/trunk/features/openajax/
>>>> OK, is there a howto to get the wookie sources into the rave maven project?
>>>> I'm not familiar with maven.
>>>> What must i do to get the wookie sources into my project to use the Custom
Build instead of the wookie-war wich comes with the rave-project?
>>> OK, so first you need to change the Wookie version you build Rave with; to do
this, in rave-project/pom.xml change:
>>>          <apache.wookie.version>0.10.0-incubating</apache.wookie.version>
>>> to:
>>>          <apache.wookie.version>0.13.0-incubating-SNAPSHOT</apache.wookie.version>
>>> Next, you need to publish your custom Wookie build locally. You can do this from
the root of your Wookie source folder using:
>>> ant publish-local
>>> This will create a 0.13.0-incubating-SNAPSHOT war in your local Maven repository
(e.g. in ~/.m2/repository/org/apache/wookie)
>>> Note however I've seen a bug in Ivy/Ant where this is cached rather than updated
when you make changes, so you may need to delete it  then re-publish whenever you make changes
(which is a pain)
>>> If you just want to try out some JavaScript changes interactively, you can run
Rave, then go into rave-portal/target/tomcat6x/webapps/wookie/features and edit OpenAjaxClient.js.
You can then see the effects just by reloading to clear the browser cached version. When you're
happy you've got a good working solution, you can copy it into your source folder then follow
the steps above to try it as part of a new build.
>>> Hope this helps,
>>> -S
>> Hi Scott,
>> thanks for the instructions - it worked.
>> For the wookie widgets there are only OpenAjax Iframe Container for displaying the
widgets whereas Shindig loads some other components.
>> I have cusomized the   wookie/features/openajax/feature.xml and commented out the
>> Then, connect manually inside the widgets taking care of the callback function from
the openajaxhub.
>> Then the connection is ready, it calls automatically my defined function which subsribes
to the needed topics.
>> 	this.connect = function(){
>> 		if(typeof window.hub === 'undefined'){
>> 			window.hub = new OpenAjax.hub.IframeHubClient({
>> 			    HubClient: {
>> 			      onSecurityAlert: function(){
>> 			    	  console.log("OpenAjax Security Error!");
>> 			    	  }
>> 			    }
>> 			});	
>> 			// Connect to the ManagedHub with callback function for asynchronous communication
>> 			window.hub.connect(conn.callbackOnConnect);
>> 		}
>> 		else console.log("OAHub: Hub already defined.");
>> 	}
>> 	this.callbackOnConnect = function(hub, success, error){
>> 		if(success){
>> 			console.log("OAHub: Connection successfully established. ");
>> 			ConnectionCallBackFunction(); // myfunction
>> 		}
>> 		else console.log("OAHub: Connection failed.");
>> 	}
>> For general usage, i think we must use the callback function to wait until the hub
is connected and after that load the content for the window.
>> Has someone an idea how to implement this properly, clean and nice into rave :) 
> Hi Christian,
> I've checked in an update to the Wookie feature based on your code - thanks! - plus I
added queuing any pub/sub actions made before the hub is ready then executing them. Its in
the Wookie trunk, and will be in the 0.13 release.
> S
Hi Scott,

thanks for your work - it looks nice. I'll test it for our purposes but 
i think it schould work without any problems.


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