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Posted to users@wicket.apache.org by Tobias Soloschenko <to...@googlemail.com> on 2014/09/09 10:58:57 UTC

Global Ajax Event Handler

Hi all, 

is there a way to register a global ajax event handler within Wicket? For normal there is the AbstractDefaultAjaxBehavior which is added to a component. And then the CallbackScript can be obtained and used within a OnDomReadyHeaderItem for example.

Is there a way to do this on application level so that Im able to get the CallbackScript from the instantiated Application? 

kind regards 

Tobias
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Re: Global Ajax Event Handler

Posted by Tobias Soloschenko <to...@googlemail.com>.

I only wrote some pseudo code to show what I want to do. In simple words:

I want to write javascript code that invokes a method on the server side. The method on Server side is going to refresh components. Everything should work without Rendering the javascript code within a wicket page / component.

Kind regards

Tobias 

> Am 09.09.2014 um 11:37 schrieb Martin Grigorov <mg...@apache.org>:
> 
> I am still confused :-)
> You used class names which are not available in Wicket 6.17.0 so I cannot
> map them to any functionality that is possible with "local" behavior.
> 
> My guess is that you ask
> about org.apache.wicket.ajax.AjaxRequestTarget.IListener#updateAjaxAttributes()
> You can register custom listener like this:
> https://github.com/apache/wicket/blob/master/wicket-core/src/test/java/org/apache/wicket/ajax/GlobalUpdateAjaxAttributesTest.java#L40
> 
> This way you have a global (server side, application-wide) way to
> manipulate the AjaxRequestAttributes for *all* Ajax behaviors/components.
> 
> Does this solve the problem ?
> If NO then please explain how you would do it "the local way".
> 
> 
> Martin Grigorov
> Wicket Training and Consulting
> https://twitter.com/mtgrigorov
> 
> 
> On Tue, Sep 9, 2014 at 12:26 PM, Tobias Soloschenko <
> tobiassoloschenko@googlemail.com> wrote:
> 
>> I want to have the possibility to add a listener at application Level like
>> in this pseudo code
>> 
>> Server side
>> getGlobalAjaxBehaviors().add("myid",new GlobalAjaxBehavior(){
>> 
>> public void respond(GlobalRequest request){
>> // here the Event is received
>> // request.getArguments();
>> // request.replace(...)
>> }
>> }
>> 
>> Client side
>> Wicket.Ajax.get({"id","somearguments"});
>> 
>> This would allow me to send ajax request from any applications rendered at
>> the Same page but which aren't able to access the wicket component
>> structure. But within the event I would like to add and replace components
>> based on the given args. Maybe application is Not the right place - Page
>> would also be ok by adding the page class to the listener instead an id and
>> the page class itself could implement an Interface for handling the event.
>> 
>> kind regards
>> 
>> Tobias
>> 
>>> Am 09.09.2014 um 11:06 schrieb Martin Grigorov <mg...@apache.org>:
>>> 
>>> What exactly you want to do ?
>>> 
>>> Martin Grigorov
>>> Wicket Training and Consulting
>>> https://twitter.com/mtgrigorov
>>> 
>>> 
>>> On Tue, Sep 9, 2014 at 11:58 AM, Tobias Soloschenko <
>>> tobiassoloschenko@googlemail.com> wrote:
>>> 
>>>> Hi all,
>>>> 
>>>> is there a way to register a global ajax event handler within Wicket?
>> For
>>>> normal there is the AbstractDefaultAjaxBehavior which is added to a
>>>> component. And then the CallbackScript can be obtained and used within a
>>>> OnDomReadyHeaderItem for example.
>>>> 
>>>> Is there a way to do this on application level so that Im able to get
>> the
>>>> CallbackScript from the instantiated Application?
>>>> 
>>>> kind regards
>>>> 
>>>> Tobias
>>>> ---------------------------------------------------------------------
>>>> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
>>>> For additional commands, e-mail: users-help@wicket.apache.org
>> 
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
>> For additional commands, e-mail: users-help@wicket.apache.org
>> 
>> 

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Re: Global Ajax Event Handler

Posted by Martin Grigorov <mg...@apache.org>.

I am still confused :-)
You used class names which are not available in Wicket 6.17.0 so I cannot
map them to any functionality that is possible with "local" behavior.

My guess is that you ask
about org.apache.wicket.ajax.AjaxRequestTarget.IListener#updateAjaxAttributes()
You can register custom listener like this:
https://github.com/apache/wicket/blob/master/wicket-core/src/test/java/org/apache/wicket/ajax/GlobalUpdateAjaxAttributesTest.java#L40

This way you have a global (server side, application-wide) way to
manipulate the AjaxRequestAttributes for *all* Ajax behaviors/components.

Does this solve the problem ?
If NO then please explain how you would do it "the local way".


Martin Grigorov
Wicket Training and Consulting
https://twitter.com/mtgrigorov


On Tue, Sep 9, 2014 at 12:26 PM, Tobias Soloschenko <
tobiassoloschenko@googlemail.com> wrote:

> I want to have the possibility to add a listener at application Level like
> in this pseudo code
>
> Server side
> getGlobalAjaxBehaviors().add("myid",new GlobalAjaxBehavior(){
>
>  public void respond(GlobalRequest request){
>  // here the Event is received
> // request.getArguments();
>  // request.replace(...)
> }
> }
>
> Client side
> Wicket.Ajax.get({"id","somearguments"});
>
> This would allow me to send ajax request from any applications rendered at
> the Same page but which aren't able to access the wicket component
> structure. But within the event I would like to add and replace components
> based on the given args. Maybe application is Not the right place - Page
> would also be ok by adding the page class to the listener instead an id and
> the page class itself could implement an Interface for handling the event.
>
> kind regards
>
> Tobias
>
> > Am 09.09.2014 um 11:06 schrieb Martin Grigorov <mg...@apache.org>:
> >
> > What exactly you want to do ?
> >
> > Martin Grigorov
> > Wicket Training and Consulting
> > https://twitter.com/mtgrigorov
> >
> >
> > On Tue, Sep 9, 2014 at 11:58 AM, Tobias Soloschenko <
> > tobiassoloschenko@googlemail.com> wrote:
> >
> >> Hi all,
> >>
> >> is there a way to register a global ajax event handler within Wicket?
> For
> >> normal there is the AbstractDefaultAjaxBehavior which is added to a
> >> component. And then the CallbackScript can be obtained and used within a
> >> OnDomReadyHeaderItem for example.
> >>
> >> Is there a way to do this on application level so that Im able to get
> the
> >> CallbackScript from the instantiated Application?
> >>
> >> kind regards
> >>
> >> Tobias
> >> ---------------------------------------------------------------------
> >> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> >> For additional commands, e-mail: users-help@wicket.apache.org
> >>
> >>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> For additional commands, e-mail: users-help@wicket.apache.org
>
>

Re: Global Ajax Event Handler

Posted by Tobias Soloschenko <to...@googlemail.com>.

I want to have the possibility to add a listener at application Level like in this pseudo code 

Server side
getGlobalAjaxBehaviors().add("myid",new GlobalAjaxBehavior(){

 public void respond(GlobalRequest request){
 // here the Event is received 
// request.getArguments();
 // request.replace(...)
}
}

Client side
Wicket.Ajax.get({"id","somearguments"});

This would allow me to send ajax request from any applications rendered at the Same page but which aren't able to access the wicket component structure. But within the event I would like to add and replace components based on the given args. Maybe application is Not the right place - Page would also be ok by adding the page class to the listener instead an id and the page class itself could implement an Interface for handling the event.

kind regards 

Tobias 

> Am 09.09.2014 um 11:06 schrieb Martin Grigorov <mg...@apache.org>:
> 
> What exactly you want to do ?
> 
> Martin Grigorov
> Wicket Training and Consulting
> https://twitter.com/mtgrigorov
> 
> 
> On Tue, Sep 9, 2014 at 11:58 AM, Tobias Soloschenko <
> tobiassoloschenko@googlemail.com> wrote:
> 
>> Hi all,
>> 
>> is there a way to register a global ajax event handler within Wicket? For
>> normal there is the AbstractDefaultAjaxBehavior which is added to a
>> component. And then the CallbackScript can be obtained and used within a
>> OnDomReadyHeaderItem for example.
>> 
>> Is there a way to do this on application level so that Im able to get the
>> CallbackScript from the instantiated Application?
>> 
>> kind regards
>> 
>> Tobias
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
>> For additional commands, e-mail: users-help@wicket.apache.org
>> 
>> 

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Re: Global Ajax Event Handler

Posted by Martin Grigorov <mg...@apache.org>.

What exactly you want to do ?

Martin Grigorov
Wicket Training and Consulting
https://twitter.com/mtgrigorov


On Tue, Sep 9, 2014 at 11:58 AM, Tobias Soloschenko <
tobiassoloschenko@googlemail.com> wrote:

> Hi all,
>
> is there a way to register a global ajax event handler within Wicket? For
> normal there is the AbstractDefaultAjaxBehavior which is added to a
> component. And then the CallbackScript can be obtained and used within a
> OnDomReadyHeaderItem for example.
>
> Is there a way to do this on application level so that Im able to get the
> CallbackScript from the instantiated Application?
>
> kind regards
>
> Tobias
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> For additional commands, e-mail: users-help@wicket.apache.org
>
>

Re: Global Ajax Event Handler

Posted by Tobias Soloschenko <to...@googlemail.com>.

Hi,

the example shows up event bubbling which is not what I mean. 

Thanks anyway :-)

Kind regards 

Tobias 
> Am 09.09.2014 um 11:40 schrieb "Richter, Marvin" <Ma...@freenetdigital.com>:
> 
> What you are looking for is the Wicket Event mechanism.
> 
> This allows you to send a broadcast to a specified Component (e.g. the current page) and a payload (e.g. your custom event type which contains information).
> 
> In the Components which should react on the event you override the method onEvent, check if the event is of your type and if so, do with the event payload whatever you want.
> 
> Check out http://www.wicket-library.com/wicket-examples/events/wicket/bookmarkable/org.apache.wicket.examples.source.SourcesPage?1&SourcesPage_class=org.apache.wicket.examples.events.DecoupledAjaxUpdatePage for a good example.
> 
> Best,
> Marvin
> 
> -----Original Message-----
> From: Tobias Soloschenko [mailto:tobiassoloschenko@googlemail.com] 
> Sent: Tuesday, September 09, 2014 11:31 AM
> To: users@wicket.apache.org
> Subject: Re: Global Ajax Event Handler
> 
> Hi,
> 
> thanks for the answer, but this is only a client side event hook not for processing a request to the Server. I added a pseudo code to the question of martin who asked me what I exactly want to do.
> 
> Thanks anyway for the fast answer!
> 
> kind regards,
> 
> Tobias 
> 
>> Am 09.09.2014 um 11:06 schrieb Tom GÃ¶tz <to...@decoded.de>:
>> 
>> See https://cwiki.apache.org/confluence/display/WICKET/Wicket+Ajax, section "Global Ajax call listenersâ€œ.
>> 
>> Cheers,
>>  -Tom
>> 
>> 
>>> On 09.09.2014, at 10:58, Tobias Soloschenko <to...@googlemail.com> wrote:
>>> 
>>> Hi all, 
>>> 
>>> is there a way to register a global ajax event handler within Wicket? For normal there is the AbstractDefaultAjaxBehavior which is added to a component. And then the CallbackScript can be obtained and used within a OnDomReadyHeaderItem for example.
>>> 
>>> Is there a way to do this on application level so that Im able to get the CallbackScript from the instantiated Application? 
>>> 
>>> kind regards 
>>> 
>>> Tobias
>>> ---------------------------------------------------------------------
>>> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
>>> For additional commands, e-mail: users-help@wicket.apache.org
> 
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> For additional commands, e-mail: users-help@wicket.apache.org
> 
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Re: Global Ajax Event Handler

Posted by Tobias Soloschenko <to...@googlemail.com>.

Thats it!!! Thanks!

Kind regards

Tobias 

Von meinem iPhone gesendet

> Am 09.09.2014 um 11:51 schrieb Martin Grigorov <mg...@apache.org>:
> 
> I've re-read the message and I think I got it.
> What you really need is a mounted resource
> (WebApplication#mountResource(someResourceReference))
> To get a url to it use: theUrl = requestCycle.urlFor(sameResRef,
> parametersWithPageId)
> Wicket.Ajax.get({"u": theUrl, ...})
> In IResource#respond() you can create AjaxRequestTarget with:
> 
> Page page = session.getPageManager().get(parameters.get("pageId"))
> target = webApplication.newAjaxRequestTarget(page)
> requestCycle.scheduleRequestHandlerAfterCurrent(target);
> page.send(page, Broadcast.BREADTH, new SomeEvent(target))
> 
> in SomeComponent#onEvent() use someEvent.getTarget().add(this) to add the
> component when SomeEvent is broadcasted
> 
> Martin Grigorov
> Wicket Training and Consulting
> https://twitter.com/mtgrigorov
> 
> 
> On Tue, Sep 9, 2014 at 12:40 PM, Richter, Marvin <
> Marvin.Richter@freenetdigital.com> wrote:
> 
>> What you are looking for is the Wicket Event mechanism.
>> 
>> This allows you to send a broadcast to a specified Component (e.g. the
>> current page) and a payload (e.g. your custom event type which contains
>> information).
>> 
>> In the Components which should react on the event you override the method
>> onEvent, check if the event is of your type and if so, do with the event
>> payload whatever you want.
>> 
>> Check out
>> http://www.wicket-library.com/wicket-examples/events/wicket/bookmarkable/org.apache.wicket.examples.source.SourcesPage?1&SourcesPage_class=org.apache.wicket.examples.events.DecoupledAjaxUpdatePage
>> for a good example.
>> 
>> Best,
>> Marvin
>> 
>> -----Original Message-----
>> From: Tobias Soloschenko [mailto:tobiassoloschenko@googlemail.com]
>> Sent: Tuesday, September 09, 2014 11:31 AM
>> To: users@wicket.apache.org
>> Subject: Re: Global Ajax Event Handler
>> 
>> Hi,
>> 
>> thanks for the answer, but this is only a client side event hook not for
>> processing a request to the Server. I added a pseudo code to the question
>> of martin who asked me what I exactly want to do.
>> 
>> Thanks anyway for the fast answer!
>> 
>> kind regards,
>> 
>> Tobias
>> 
>>> Am 09.09.2014 um 11:06 schrieb Tom Götz <to...@decoded.de>:
>>> 
>>> See https://cwiki.apache.org/confluence/display/WICKET/Wicket+Ajax,
>> section "Global Ajax call listeners“.
>>> 
>>> Cheers,
>>>  -Tom
>>> 
>>> 
>>>> On 09.09.2014, at 10:58, Tobias Soloschenko <
>> tobiassoloschenko@googlemail.com> wrote:
>>>> 
>>>> Hi all,
>>>> 
>>>> is there a way to register a global ajax event handler within Wicket?
>> For normal there is the AbstractDefaultAjaxBehavior which is added to a
>> component. And then the CallbackScript can be obtained and used within a
>> OnDomReadyHeaderItem for example.
>>>> 
>>>> Is there a way to do this on application level so that Im able to get
>> the CallbackScript from the instantiated Application?
>>>> 
>>>> kind regards
>>>> 
>>>> Tobias
>>>> ---------------------------------------------------------------------
>>>> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
>>>> For additional commands, e-mail: users-help@wicket.apache.org
>> 
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
>> For additional commands, e-mail: users-help@wicket.apache.org
>> 
>> 

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Re: Global Ajax Event Handler

Posted by Tobias Soloschenko <to...@googlemail.com>.

Ok the id is now generated right - but the code to get the page by the given page id is still returning null if the ajax call is made.

Tobias 

> Am 09.09.2014 um 15:11 schrieb Martin Grigorov <mg...@apache.org>:
> 
> Yes.
> This should be OK.
> 
> Martin Grigorov
> Wicket Training and Consulting
> https://twitter.com/mtgrigorov
> 
> 
> On Tue, Sep 9, 2014 at 4:09 PM, Tobias Soloschenko <
> tobiassoloschenko@googlemail.com> wrote:
> 
>> PageRequestHandlerTracker.getLastHandler(RequestCycle.get()).getPageId() ?
>> Is this a valid Way to get the last pageid?
>> 
>> Kind regards
>> 
>> Tobias
>> 
>>> Am 09.09.2014 um 14:50 schrieb Martin Grigorov <mg...@apache.org>:
>>> 
>>> The UrlGenerator class is used somewhere where the Page is available, no
>> ?
>>> In SomeComponent/SomeBehavior:
>>> 
>>> UrlGenerator generator = new UrlGenerator();
>>> Url url = generator.generate(getPage().getPageId());
>>> 
>>> Session.get().getPageManager().getPage(exisingAndNonExpiredPageId) is the
>>> way to get a reference to the page.
>>> Wicket uses this API internally every time you click a link or button.
>>> 
>>> Martin Grigorov
>>> Wicket Training and Consulting
>>> https://twitter.com/mtgrigorov
>>> 
>>> 
>>> On Tue, Sep 9, 2014 at 3:45 PM, Tobias Soloschenko <
>>> tobiassoloschenko@googlemail.com> wrote:
>>> 
>>>> And thats the question I was looking for - how do I get the current
>> page id
>>>> within the class that generates the url which is no component and the
>>>> second question was how do I get the page to that id, because (Page)
>>>> WebSession.get().getPageManager().getPage(i.get()) returns null for int
>> i
>>>> 0-10, event if I cleared the browsers cache / restarted the server.
>>>> 
>>>> kind regards and big thanks for all the help!
>>>> 
>>>> Tobias
>>>> 
>>>> 2014-09-09 14:28 GMT+02:00 Martin Grigorov <mg...@apache.org>:
>>>> 
>>>>> Session#pageId is a counter that is used to give an id to the next
>>>> created
>>>>> page.
>>>>> It is not the id of the currently used page!
>>>>> 
>>>>> You will need to provide the pageId somehow to the class that generates
>>>> the
>>>>> url.
>>>>> 
>>>>> Martin Grigorov
>>>>> Wicket Training and Consulting
>>>>> https://twitter.com/mtgrigorov
>>>>> 
>>>>> 
>>>>> On Tue, Sep 9, 2014 at 3:13 PM, Tobias Soloschenko <
>>>>> tobiassoloschenko@googlemail.com> wrote:
>>>>> 
>>>>>> The method getPage() is not available at the place where I'm building
>>>> the
>>>>>> link - I'm not within a component and I try to get the page by content
>>>> of
>>>>>> the session. :-)
>>>>>> 
>>>>>> I didn't modified the Session - the pageId is stored in
>>>>>> org.apache.wicket.Session.pageId which is an AtomicInteger
>>>>>> 
>>>>>> 
>>>>>> 2014-09-09 14:06 GMT+02:00 Martin Grigorov <mg...@apache.org>:
>>>>>> 
>>>>>>> Pass the pageId as a query string parameter.
>>>>>>> 
>>>>>>> PageParameters params = new PageParameters();
>>>>>>> params.set("pageId", getPage().getPageId());
>>>>>>> theUrlToTheReference = requestCycle.urlFor(yourResRef, params);
>>>>>>> 
>>>>>>> Then in the IResource (better extend AbstractResource) just read it
>>>>> from
>>>>>>> the request parameters.
>>>>>>> 
>>>>>>> Storing the pageId in the session is not OK because the user may open
>>>>> two
>>>>>>> different pages in separate tabs/windows and this will break.
>>>>>>> 
>>>>>>> 
>>>>>>> Martin Grigorov
>>>>>>> Wicket Training and Consulting
>>>>>>> https://twitter.com/mtgrigorov
>>>>>>> 
>>>>>>> 
>>>>>>> On Tue, Sep 9, 2014 at 3:01 PM, Tobias Soloschenko <
>>>>>>> tobiassoloschenko@googlemail.com> wrote:
>>>>>>> 
>>>>>>>> Thanks again for the fast answer. My code now looks this way:
>>>>>>>> 
>>>>>>>>           Field declaredField =
>>>>>>>> WebSession.get().getClass().getSuperclass()
>>>>>>>>               .getDeclaredField("pageId");
>>>>>>>> 
>>>>>>>>           declaredField.setAccessible(true);
>>>>>>>>           AtomicInteger i = (AtomicInteger)
>>>>>>>> declaredField.get(WebSession.get());
>>>>>>>>           Page page = (Page) WebSession.get().getPageManager()
>>>>>>>>               .getPage(i.get());
>>>>>>>> 
>>>>>>>>           AjaxRequestTarget newAjaxRequestTarget =
>>>>> ((WebApplication)
>>>>>>>> Application.get())
>>>>>>>>               .newAjaxRequestTarget(page);
>>>>>>>> 
>>>>>>>>           RequestCycle.get().scheduleRequestHandlerAfterCurrent(
>>>>>>>>               newAjaxRequestTarget);
>>>>>>>> 
>>>>>>>> I dont know how to get the current pageId but from the Session. The
>>>>>> page
>>>>>>> at
>>>>>>>> this place is null. :-(
>>>>>>>> 
>>>>>>>> 
>>>>>>>> 
>>>>>>>> 2014-09-09 13:53 GMT+02:00 Martin Grigorov <mg...@apache.org>:
>>>>>>>> 
>>>>>>>>> On Tue, Sep 9, 2014 at 2:05 PM, Tobias Soloschenko <
>>>>>>>>> tobiassoloschenko@googlemail.com> wrote:
>>>>>>>>> 
>>>>>>>>>> Hi again,
>>>>>>>>>> 
>>>>>>>>>> I tried out that code you mentioned here.
>>>>>>>>>> WebSession.get().getPageManager().getPage(int i) returns
>>>>>>>> IManageablePage
>>>>>>>>>> which is not applicable as argument for newAjaxRequestTarget.
>>>>>>>>> 
>>>>>>>>> cast it
>>>>>>>>> it is known that in your environment you don't use any custom
>>>>>>>>> IManageablePage/IRequestablePage impls (see IPageFactory)
>>>>>>>>> 
>>>>>>>>> 
>>>>>>>>>> 
>>>>>>>>>> The second thing is how do I get the instance of a page by
>>>> class
>>>>>> with
>>>>>>>> the
>>>>>>>>>> last page id not from within a component (this would be simple
>>>>>>>>> getPage())?
>>>>>>>>> 
>>>>>>>>> I didn't get this
>>>>>>>>> Please re-phrase
>>>>>>>>> 
>>>>>>>>> 
>>>>>>>>>> 
>>>>>>>>>> 2014-09-09 11:51 GMT+02:00 Martin Grigorov <
>>>> mgrigorov@apache.org
>>>>>> :
>>>>>>>>>> 
>>>>>>>>>>> I've re-read the message and I think I got it.
>>>>>>>>>>> What you really need is a mounted resource
>>>>>>>>>>> (WebApplication#mountResource(someResourceReference))
>>>>>>>>>>> To get a url to it use: theUrl =
>>>>> requestCycle.urlFor(sameResRef,
>>>>>>>>>>> parametersWithPageId)
>>>>>>>>>>> Wicket.Ajax.get({"u": theUrl, ...})
>>>>>>>>>>> In IResource#respond() you can create AjaxRequestTarget with:
>>>>>>>>>>> 
>>>>>>>>>>> Page page =
>>>>>> session.getPageManager().get(parameters.get("pageId"))
>>>>>>>>>>> target = webApplication.newAjaxRequestTarget(page)
>>>>>>>>>>> requestCycle.scheduleRequestHandlerAfterCurrent(target);
>>>>>>>>>>> page.send(page, Broadcast.BREADTH, new SomeEvent(target))
>>>>>>>>>>> 
>>>>>>>>>>> in SomeComponent#onEvent() use
>>>> someEvent.getTarget().add(this)
>>>>> to
>>>>>>> add
>>>>>>>>> the
>>>>>>>>>>> component when SomeEvent is broadcasted
>>>>>>>>>>> 
>>>>>>>>>>> Martin Grigorov
>>>>>>>>>>> Wicket Training and Consulting
>>>>>>>>>>> https://twitter.com/mtgrigorov
>>>>>>>>>>> 
>>>>>>>>>>> 
>>>>>>>>>>> On Tue, Sep 9, 2014 at 12:40 PM, Richter, Marvin <
>>>>>>>>>>> Marvin.Richter@freenetdigital.com> wrote:
>>>>>>>>>>> 
>>>>>>>>>>>> What you are looking for is the Wicket Event mechanism.
>>>>>>>>>>>> 
>>>>>>>>>>>> This allows you to send a broadcast to a specified
>>>> Component
>>>>>>> (e.g.
>>>>>>>>> the
>>>>>>>>>>>> current page) and a payload (e.g. your custom event type
>>>>> which
>>>>>>>>> contains
>>>>>>>>>>>> information).
>>>>>>>>>>>> 
>>>>>>>>>>>> In the Components which should react on the event you
>>>>> override
>>>>>>> the
>>>>>>>>>> method
>>>>>>>>>>>> onEvent, check if the event is of your type and if so, do
>>>>> with
>>>>>>> the
>>>>>>>>>> event
>>>>>>>>>>>> payload whatever you want.
>>>>>>>>>>>> 
>>>>>>>>>>>> Check out
>> http://www.wicket-library.com/wicket-examples/events/wicket/bookmarkable/org.apache.wicket.examples.source.SourcesPage?1&SourcesPage_class=org.apache.wicket.examples.events.DecoupledAjaxUpdatePage
>>>>>>>>>>>> for a good example.
>>>>>>>>>>>> 
>>>>>>>>>>>> Best,
>>>>>>>>>>>> Marvin
>>>>>>>>>>>> 
>>>>>>>>>>>> -----Original Message-----
>>>>>>>>>>>> From: Tobias Soloschenko [mailto:
>>>>>>> tobiassoloschenko@googlemail.com]
>>>>>>>>>>>> Sent: Tuesday, September 09, 2014 11:31 AM
>>>>>>>>>>>> To: users@wicket.apache.org
>>>>>>>>>>>> Subject: Re: Global Ajax Event Handler
>>>>>>>>>>>> 
>>>>>>>>>>>> Hi,
>>>>>>>>>>>> 
>>>>>>>>>>>> thanks for the answer, but this is only a client side event
>>>>>> hook
>>>>>>>> not
>>>>>>>>>> for
>>>>>>>>>>>> processing a request to the Server. I added a pseudo code
>>>> to
>>>>>> the
>>>>>>>>>> question
>>>>>>>>>>>> of martin who asked me what I exactly want to do.
>>>>>>>>>>>> 
>>>>>>>>>>>> Thanks anyway for the fast answer!
>>>>>>>>>>>> 
>>>>>>>>>>>> kind regards,
>>>>>>>>>>>> 
>>>>>>>>>>>> Tobias
>>>>>>>>>>>> 
>>>>>>>>>>>>> Am 09.09.2014 um 11:06 schrieb Tom Götz <tom@decoded.de
>>>>> :
>>>>>>>>>>>>> 
>>>>>>>>>>>>> See
>>>>>>>> https://cwiki.apache.org/confluence/display/WICKET/Wicket+Ajax
>>>>>>>>> ,
>>>>>>>>>>>> section "Global Ajax call listeners“.
>>>>>>>>>>>>> 
>>>>>>>>>>>>> Cheers,
>>>>>>>>>>>>> -Tom
>>>>>>>>>>>>> 
>>>>>>>>>>>>> 
>>>>>>>>>>>>>> On 09.09.2014, at 10:58, Tobias Soloschenko <
>>>>>>>>>>>> tobiassoloschenko@googlemail.com> wrote:
>>>>>>>>>>>>>> 
>>>>>>>>>>>>>> Hi all,
>>>>>>>>>>>>>> 
>>>>>>>>>>>>>> is there a way to register a global ajax event handler
>>>>>> within
>>>>>>>>>> Wicket?
>>>>>>>>>>>> For normal there is the AbstractDefaultAjaxBehavior which
>>>> is
>>>>>>> added
>>>>>>>>> to a
>>>>>>>>>>>> component. And then the CallbackScript can be obtained and
>>>>> used
>>>>>>>>> within
>>>>>>>>>> a
>>>>>>>>>>>> OnDomReadyHeaderItem for example.
>>>>>>>>>>>>>> 
>>>>>>>>>>>>>> Is there a way to do this on application level so that
>>>> Im
>>>>>> able
>>>>>>>> to
>>>>>>>>>> get
>>>>>>>>>>>> the CallbackScript from the instantiated Application?
>>>>>>>>>>>>>> 
>>>>>>>>>>>>>> kind regards
>>>>>>>>>>>>>> 
>>>>>>>>>>>>>> Tobias
>>>>>> ---------------------------------------------------------------------
>>>>>>>>>>>>>> To unsubscribe, e-mail:
>>>>> users-unsubscribe@wicket.apache.org
>>>>>>>>>>>>>> For additional commands, e-mail:
>>>>>> users-help@wicket.apache.org
>>>> ---------------------------------------------------------------------
>>>>>>>>>>>> To unsubscribe, e-mail:
>>>> users-unsubscribe@wicket.apache.org
>>>>>>>>>>>> For additional commands, e-mail:
>>>>> users-help@wicket.apache.org
>> 
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
>> For additional commands, e-mail: users-help@wicket.apache.org
>> 
>> 

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Re: Global Ajax Event Handler

Posted by Martin Grigorov <mg...@apache.org>.

Yes.
This should be OK.

Martin Grigorov
Wicket Training and Consulting
https://twitter.com/mtgrigorov


On Tue, Sep 9, 2014 at 4:09 PM, Tobias Soloschenko <
tobiassoloschenko@googlemail.com> wrote:

> PageRequestHandlerTracker.getLastHandler(RequestCycle.get()).getPageId() ?
> Is this a valid Way to get the last pageid?
>
> Kind regards
>
> Tobias
>
> > Am 09.09.2014 um 14:50 schrieb Martin Grigorov <mg...@apache.org>:
> >
> > The UrlGenerator class is used somewhere where the Page is available, no
> ?
> > In SomeComponent/SomeBehavior:
> >
> > UrlGenerator generator = new UrlGenerator();
> > Url url = generator.generate(getPage().getPageId());
> >
> > Session.get().getPageManager().getPage(exisingAndNonExpiredPageId) is the
> > way to get a reference to the page.
> > Wicket uses this API internally every time you click a link or button.
> >
> > Martin Grigorov
> > Wicket Training and Consulting
> > https://twitter.com/mtgrigorov
> >
> >
> > On Tue, Sep 9, 2014 at 3:45 PM, Tobias Soloschenko <
> > tobiassoloschenko@googlemail.com> wrote:
> >
> >> And thats the question I was looking for - how do I get the current
> page id
> >> within the class that generates the url which is no component and the
> >> second question was how do I get the page to that id, because (Page)
> >> WebSession.get().getPageManager().getPage(i.get()) returns null for int
> i
> >> 0-10, event if I cleared the browsers cache / restarted the server.
> >>
> >> kind regards and big thanks for all the help!
> >>
> >> Tobias
> >>
> >> 2014-09-09 14:28 GMT+02:00 Martin Grigorov <mg...@apache.org>:
> >>
> >>> Session#pageId is a counter that is used to give an id to the next
> >> created
> >>> page.
> >>> It is not the id of the currently used page!
> >>>
> >>> You will need to provide the pageId somehow to the class that generates
> >> the
> >>> url.
> >>>
> >>> Martin Grigorov
> >>> Wicket Training and Consulting
> >>> https://twitter.com/mtgrigorov
> >>>
> >>>
> >>> On Tue, Sep 9, 2014 at 3:13 PM, Tobias Soloschenko <
> >>> tobiassoloschenko@googlemail.com> wrote:
> >>>
> >>>> The method getPage() is not available at the place where I'm building
> >> the
> >>>> link - I'm not within a component and I try to get the page by content
> >> of
> >>>> the session. :-)
> >>>>
> >>>> I didn't modified the Session - the pageId is stored in
> >>>> org.apache.wicket.Session.pageId which is an AtomicInteger
> >>>>
> >>>>
> >>>> 2014-09-09 14:06 GMT+02:00 Martin Grigorov <mg...@apache.org>:
> >>>>
> >>>>> Pass the pageId as a query string parameter.
> >>>>>
> >>>>> PageParameters params = new PageParameters();
> >>>>> params.set("pageId", getPage().getPageId());
> >>>>> theUrlToTheReference = requestCycle.urlFor(yourResRef, params);
> >>>>>
> >>>>> Then in the IResource (better extend AbstractResource) just read it
> >>> from
> >>>>> the request parameters.
> >>>>>
> >>>>> Storing the pageId in the session is not OK because the user may open
> >>> two
> >>>>> different pages in separate tabs/windows and this will break.
> >>>>>
> >>>>>
> >>>>> Martin Grigorov
> >>>>> Wicket Training and Consulting
> >>>>> https://twitter.com/mtgrigorov
> >>>>>
> >>>>>
> >>>>> On Tue, Sep 9, 2014 at 3:01 PM, Tobias Soloschenko <
> >>>>> tobiassoloschenko@googlemail.com> wrote:
> >>>>>
> >>>>>> Thanks again for the fast answer. My code now looks this way:
> >>>>>>
> >>>>>>            Field declaredField =
> >>>>>> WebSession.get().getClass().getSuperclass()
> >>>>>>                .getDeclaredField("pageId");
> >>>>>>
> >>>>>>            declaredField.setAccessible(true);
> >>>>>>            AtomicInteger i = (AtomicInteger)
> >>>>>> declaredField.get(WebSession.get());
> >>>>>>            Page page = (Page) WebSession.get().getPageManager()
> >>>>>>                .getPage(i.get());
> >>>>>>
> >>>>>>            AjaxRequestTarget newAjaxRequestTarget =
> >>> ((WebApplication)
> >>>>>> Application.get())
> >>>>>>                .newAjaxRequestTarget(page);
> >>>>>>
> >>>>>>            RequestCycle.get().scheduleRequestHandlerAfterCurrent(
> >>>>>>                newAjaxRequestTarget);
> >>>>>>
> >>>>>> I dont know how to get the current pageId but from the Session. The
> >>>> page
> >>>>> at
> >>>>>> this place is null. :-(
> >>>>>>
> >>>>>>
> >>>>>>
> >>>>>> 2014-09-09 13:53 GMT+02:00 Martin Grigorov <mg...@apache.org>:
> >>>>>>
> >>>>>>> On Tue, Sep 9, 2014 at 2:05 PM, Tobias Soloschenko <
> >>>>>>> tobiassoloschenko@googlemail.com> wrote:
> >>>>>>>
> >>>>>>>> Hi again,
> >>>>>>>>
> >>>>>>>> I tried out that code you mentioned here.
> >>>>>>>> WebSession.get().getPageManager().getPage(int i) returns
> >>>>>> IManageablePage
> >>>>>>>> which is not applicable as argument for newAjaxRequestTarget.
> >>>>>>>
> >>>>>>> cast it
> >>>>>>> it is known that in your environment you don't use any custom
> >>>>>>> IManageablePage/IRequestablePage impls (see IPageFactory)
> >>>>>>>
> >>>>>>>
> >>>>>>>>
> >>>>>>>> The second thing is how do I get the instance of a page by
> >> class
> >>>> with
> >>>>>> the
> >>>>>>>> last page id not from within a component (this would be simple
> >>>>>>> getPage())?
> >>>>>>>
> >>>>>>> I didn't get this
> >>>>>>> Please re-phrase
> >>>>>>>
> >>>>>>>
> >>>>>>>>
> >>>>>>>> 2014-09-09 11:51 GMT+02:00 Martin Grigorov <
> >> mgrigorov@apache.org
> >>>> :
> >>>>>>>>
> >>>>>>>>> I've re-read the message and I think I got it.
> >>>>>>>>> What you really need is a mounted resource
> >>>>>>>>> (WebApplication#mountResource(someResourceReference))
> >>>>>>>>> To get a url to it use: theUrl =
> >>> requestCycle.urlFor(sameResRef,
> >>>>>>>>> parametersWithPageId)
> >>>>>>>>> Wicket.Ajax.get({"u": theUrl, ...})
> >>>>>>>>> In IResource#respond() you can create AjaxRequestTarget with:
> >>>>>>>>>
> >>>>>>>>> Page page =
> >>>> session.getPageManager().get(parameters.get("pageId"))
> >>>>>>>>> target = webApplication.newAjaxRequestTarget(page)
> >>>>>>>>> requestCycle.scheduleRequestHandlerAfterCurrent(target);
> >>>>>>>>> page.send(page, Broadcast.BREADTH, new SomeEvent(target))
> >>>>>>>>>
> >>>>>>>>> in SomeComponent#onEvent() use
> >> someEvent.getTarget().add(this)
> >>> to
> >>>>> add
> >>>>>>> the
> >>>>>>>>> component when SomeEvent is broadcasted
> >>>>>>>>>
> >>>>>>>>> Martin Grigorov
> >>>>>>>>> Wicket Training and Consulting
> >>>>>>>>> https://twitter.com/mtgrigorov
> >>>>>>>>>
> >>>>>>>>>
> >>>>>>>>> On Tue, Sep 9, 2014 at 12:40 PM, Richter, Marvin <
> >>>>>>>>> Marvin.Richter@freenetdigital.com> wrote:
> >>>>>>>>>
> >>>>>>>>>> What you are looking for is the Wicket Event mechanism.
> >>>>>>>>>>
> >>>>>>>>>> This allows you to send a broadcast to a specified
> >> Component
> >>>>> (e.g.
> >>>>>>> the
> >>>>>>>>>> current page) and a payload (e.g. your custom event type
> >>> which
> >>>>>>> contains
> >>>>>>>>>> information).
> >>>>>>>>>>
> >>>>>>>>>> In the Components which should react on the event you
> >>> override
> >>>>> the
> >>>>>>>> method
> >>>>>>>>>> onEvent, check if the event is of your type and if so, do
> >>> with
> >>>>> the
> >>>>>>>> event
> >>>>>>>>>> payload whatever you want.
> >>>>>>>>>>
> >>>>>>>>>> Check out
> >>
> http://www.wicket-library.com/wicket-examples/events/wicket/bookmarkable/org.apache.wicket.examples.source.SourcesPage?1&SourcesPage_class=org.apache.wicket.examples.events.DecoupledAjaxUpdatePage
> >>>>>>>>>> for a good example.
> >>>>>>>>>>
> >>>>>>>>>> Best,
> >>>>>>>>>> Marvin
> >>>>>>>>>>
> >>>>>>>>>> -----Original Message-----
> >>>>>>>>>> From: Tobias Soloschenko [mailto:
> >>>>> tobiassoloschenko@googlemail.com]
> >>>>>>>>>> Sent: Tuesday, September 09, 2014 11:31 AM
> >>>>>>>>>> To: users@wicket.apache.org
> >>>>>>>>>> Subject: Re: Global Ajax Event Handler
> >>>>>>>>>>
> >>>>>>>>>> Hi,
> >>>>>>>>>>
> >>>>>>>>>> thanks for the answer, but this is only a client side event
> >>>> hook
> >>>>>> not
> >>>>>>>> for
> >>>>>>>>>> processing a request to the Server. I added a pseudo code
> >> to
> >>>> the
> >>>>>>>> question
> >>>>>>>>>> of martin who asked me what I exactly want to do.
> >>>>>>>>>>
> >>>>>>>>>> Thanks anyway for the fast answer!
> >>>>>>>>>>
> >>>>>>>>>> kind regards,
> >>>>>>>>>>
> >>>>>>>>>> Tobias
> >>>>>>>>>>
> >>>>>>>>>>> Am 09.09.2014 um 11:06 schrieb Tom Götz <tom@decoded.de
> >>> :
> >>>>>>>>>>>
> >>>>>>>>>>> See
> >>>>>> https://cwiki.apache.org/confluence/display/WICKET/Wicket+Ajax
> >>>>>>> ,
> >>>>>>>>>> section "Global Ajax call listeners“.
> >>>>>>>>>>>
> >>>>>>>>>>> Cheers,
> >>>>>>>>>>>  -Tom
> >>>>>>>>>>>
> >>>>>>>>>>>
> >>>>>>>>>>>> On 09.09.2014, at 10:58, Tobias Soloschenko <
> >>>>>>>>>> tobiassoloschenko@googlemail.com> wrote:
> >>>>>>>>>>>>
> >>>>>>>>>>>> Hi all,
> >>>>>>>>>>>>
> >>>>>>>>>>>> is there a way to register a global ajax event handler
> >>>> within
> >>>>>>>> Wicket?
> >>>>>>>>>> For normal there is the AbstractDefaultAjaxBehavior which
> >> is
> >>>>> added
> >>>>>>> to a
> >>>>>>>>>> component. And then the CallbackScript can be obtained and
> >>> used
> >>>>>>> within
> >>>>>>>> a
> >>>>>>>>>> OnDomReadyHeaderItem for example.
> >>>>>>>>>>>>
> >>>>>>>>>>>> Is there a way to do this on application level so that
> >> Im
> >>>> able
> >>>>>> to
> >>>>>>>> get
> >>>>>>>>>> the CallbackScript from the instantiated Application?
> >>>>>>>>>>>>
> >>>>>>>>>>>> kind regards
> >>>>>>>>>>>>
> >>>>>>>>>>>> Tobias
> >>>> ---------------------------------------------------------------------
> >>>>>>>>>>>> To unsubscribe, e-mail:
> >>> users-unsubscribe@wicket.apache.org
> >>>>>>>>>>>> For additional commands, e-mail:
> >>>> users-help@wicket.apache.org
> >> ---------------------------------------------------------------------
> >>>>>>>>>> To unsubscribe, e-mail:
> >> users-unsubscribe@wicket.apache.org
> >>>>>>>>>> For additional commands, e-mail:
> >>> users-help@wicket.apache.org
> >>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> For additional commands, e-mail: users-help@wicket.apache.org
>
>

Re: Global Ajax Event Handler

Posted by Tobias Soloschenko <to...@googlemail.com>.

PageRequestHandlerTracker.getLastHandler(RequestCycle.get()).getPageId() ? Is this a valid Way to get the last pageid? 

Kind regards

Tobias 

> Am 09.09.2014 um 14:50 schrieb Martin Grigorov <mg...@apache.org>:
> 
> The UrlGenerator class is used somewhere where the Page is available, no ?
> In SomeComponent/SomeBehavior:
> 
> UrlGenerator generator = new UrlGenerator();
> Url url = generator.generate(getPage().getPageId());
> 
> Session.get().getPageManager().getPage(exisingAndNonExpiredPageId) is the
> way to get a reference to the page.
> Wicket uses this API internally every time you click a link or button.
> 
> Martin Grigorov
> Wicket Training and Consulting
> https://twitter.com/mtgrigorov
> 
> 
> On Tue, Sep 9, 2014 at 3:45 PM, Tobias Soloschenko <
> tobiassoloschenko@googlemail.com> wrote:
> 
>> And thats the question I was looking for - how do I get the current page id
>> within the class that generates the url which is no component and the
>> second question was how do I get the page to that id, because (Page)
>> WebSession.get().getPageManager().getPage(i.get()) returns null for int i
>> 0-10, event if I cleared the browsers cache / restarted the server.
>> 
>> kind regards and big thanks for all the help!
>> 
>> Tobias
>> 
>> 2014-09-09 14:28 GMT+02:00 Martin Grigorov <mg...@apache.org>:
>> 
>>> Session#pageId is a counter that is used to give an id to the next
>> created
>>> page.
>>> It is not the id of the currently used page!
>>> 
>>> You will need to provide the pageId somehow to the class that generates
>> the
>>> url.
>>> 
>>> Martin Grigorov
>>> Wicket Training and Consulting
>>> https://twitter.com/mtgrigorov
>>> 
>>> 
>>> On Tue, Sep 9, 2014 at 3:13 PM, Tobias Soloschenko <
>>> tobiassoloschenko@googlemail.com> wrote:
>>> 
>>>> The method getPage() is not available at the place where I'm building
>> the
>>>> link - I'm not within a component and I try to get the page by content
>> of
>>>> the session. :-)
>>>> 
>>>> I didn't modified the Session - the pageId is stored in
>>>> org.apache.wicket.Session.pageId which is an AtomicInteger
>>>> 
>>>> 
>>>> 2014-09-09 14:06 GMT+02:00 Martin Grigorov <mg...@apache.org>:
>>>> 
>>>>> Pass the pageId as a query string parameter.
>>>>> 
>>>>> PageParameters params = new PageParameters();
>>>>> params.set("pageId", getPage().getPageId());
>>>>> theUrlToTheReference = requestCycle.urlFor(yourResRef, params);
>>>>> 
>>>>> Then in the IResource (better extend AbstractResource) just read it
>>> from
>>>>> the request parameters.
>>>>> 
>>>>> Storing the pageId in the session is not OK because the user may open
>>> two
>>>>> different pages in separate tabs/windows and this will break.
>>>>> 
>>>>> 
>>>>> Martin Grigorov
>>>>> Wicket Training and Consulting
>>>>> https://twitter.com/mtgrigorov
>>>>> 
>>>>> 
>>>>> On Tue, Sep 9, 2014 at 3:01 PM, Tobias Soloschenko <
>>>>> tobiassoloschenko@googlemail.com> wrote:
>>>>> 
>>>>>> Thanks again for the fast answer. My code now looks this way:
>>>>>> 
>>>>>>            Field declaredField =
>>>>>> WebSession.get().getClass().getSuperclass()
>>>>>>                .getDeclaredField("pageId");
>>>>>> 
>>>>>>            declaredField.setAccessible(true);
>>>>>>            AtomicInteger i = (AtomicInteger)
>>>>>> declaredField.get(WebSession.get());
>>>>>>            Page page = (Page) WebSession.get().getPageManager()
>>>>>>                .getPage(i.get());
>>>>>> 
>>>>>>            AjaxRequestTarget newAjaxRequestTarget =
>>> ((WebApplication)
>>>>>> Application.get())
>>>>>>                .newAjaxRequestTarget(page);
>>>>>> 
>>>>>>            RequestCycle.get().scheduleRequestHandlerAfterCurrent(
>>>>>>                newAjaxRequestTarget);
>>>>>> 
>>>>>> I dont know how to get the current pageId but from the Session. The
>>>> page
>>>>> at
>>>>>> this place is null. :-(
>>>>>> 
>>>>>> 
>>>>>> 
>>>>>> 2014-09-09 13:53 GMT+02:00 Martin Grigorov <mg...@apache.org>:
>>>>>> 
>>>>>>> On Tue, Sep 9, 2014 at 2:05 PM, Tobias Soloschenko <
>>>>>>> tobiassoloschenko@googlemail.com> wrote:
>>>>>>> 
>>>>>>>> Hi again,
>>>>>>>> 
>>>>>>>> I tried out that code you mentioned here.
>>>>>>>> WebSession.get().getPageManager().getPage(int i) returns
>>>>>> IManageablePage
>>>>>>>> which is not applicable as argument for newAjaxRequestTarget.
>>>>>>> 
>>>>>>> cast it
>>>>>>> it is known that in your environment you don't use any custom
>>>>>>> IManageablePage/IRequestablePage impls (see IPageFactory)
>>>>>>> 
>>>>>>> 
>>>>>>>> 
>>>>>>>> The second thing is how do I get the instance of a page by
>> class
>>>> with
>>>>>> the
>>>>>>>> last page id not from within a component (this would be simple
>>>>>>> getPage())?
>>>>>>> 
>>>>>>> I didn't get this
>>>>>>> Please re-phrase
>>>>>>> 
>>>>>>> 
>>>>>>>> 
>>>>>>>> 2014-09-09 11:51 GMT+02:00 Martin Grigorov <
>> mgrigorov@apache.org
>>>> :
>>>>>>>> 
>>>>>>>>> I've re-read the message and I think I got it.
>>>>>>>>> What you really need is a mounted resource
>>>>>>>>> (WebApplication#mountResource(someResourceReference))
>>>>>>>>> To get a url to it use: theUrl =
>>> requestCycle.urlFor(sameResRef,
>>>>>>>>> parametersWithPageId)
>>>>>>>>> Wicket.Ajax.get({"u": theUrl, ...})
>>>>>>>>> In IResource#respond() you can create AjaxRequestTarget with:
>>>>>>>>> 
>>>>>>>>> Page page =
>>>> session.getPageManager().get(parameters.get("pageId"))
>>>>>>>>> target = webApplication.newAjaxRequestTarget(page)
>>>>>>>>> requestCycle.scheduleRequestHandlerAfterCurrent(target);
>>>>>>>>> page.send(page, Broadcast.BREADTH, new SomeEvent(target))
>>>>>>>>> 
>>>>>>>>> in SomeComponent#onEvent() use
>> someEvent.getTarget().add(this)
>>> to
>>>>> add
>>>>>>> the
>>>>>>>>> component when SomeEvent is broadcasted
>>>>>>>>> 
>>>>>>>>> Martin Grigorov
>>>>>>>>> Wicket Training and Consulting
>>>>>>>>> https://twitter.com/mtgrigorov
>>>>>>>>> 
>>>>>>>>> 
>>>>>>>>> On Tue, Sep 9, 2014 at 12:40 PM, Richter, Marvin <
>>>>>>>>> Marvin.Richter@freenetdigital.com> wrote:
>>>>>>>>> 
>>>>>>>>>> What you are looking for is the Wicket Event mechanism.
>>>>>>>>>> 
>>>>>>>>>> This allows you to send a broadcast to a specified
>> Component
>>>>> (e.g.
>>>>>>> the
>>>>>>>>>> current page) and a payload (e.g. your custom event type
>>> which
>>>>>>> contains
>>>>>>>>>> information).
>>>>>>>>>> 
>>>>>>>>>> In the Components which should react on the event you
>>> override
>>>>> the
>>>>>>>> method
>>>>>>>>>> onEvent, check if the event is of your type and if so, do
>>> with
>>>>> the
>>>>>>>> event
>>>>>>>>>> payload whatever you want.
>>>>>>>>>> 
>>>>>>>>>> Check out
>> http://www.wicket-library.com/wicket-examples/events/wicket/bookmarkable/org.apache.wicket.examples.source.SourcesPage?1&SourcesPage_class=org.apache.wicket.examples.events.DecoupledAjaxUpdatePage
>>>>>>>>>> for a good example.
>>>>>>>>>> 
>>>>>>>>>> Best,
>>>>>>>>>> Marvin
>>>>>>>>>> 
>>>>>>>>>> -----Original Message-----
>>>>>>>>>> From: Tobias Soloschenko [mailto:
>>>>> tobiassoloschenko@googlemail.com]
>>>>>>>>>> Sent: Tuesday, September 09, 2014 11:31 AM
>>>>>>>>>> To: users@wicket.apache.org
>>>>>>>>>> Subject: Re: Global Ajax Event Handler
>>>>>>>>>> 
>>>>>>>>>> Hi,
>>>>>>>>>> 
>>>>>>>>>> thanks for the answer, but this is only a client side event
>>>> hook
>>>>>> not
>>>>>>>> for
>>>>>>>>>> processing a request to the Server. I added a pseudo code
>> to
>>>> the
>>>>>>>> question
>>>>>>>>>> of martin who asked me what I exactly want to do.
>>>>>>>>>> 
>>>>>>>>>> Thanks anyway for the fast answer!
>>>>>>>>>> 
>>>>>>>>>> kind regards,
>>>>>>>>>> 
>>>>>>>>>> Tobias
>>>>>>>>>> 
>>>>>>>>>>> Am 09.09.2014 um 11:06 schrieb Tom Götz <tom@decoded.de
>>> :
>>>>>>>>>>> 
>>>>>>>>>>> See
>>>>>> https://cwiki.apache.org/confluence/display/WICKET/Wicket+Ajax
>>>>>>> ,
>>>>>>>>>> section "Global Ajax call listeners“.
>>>>>>>>>>> 
>>>>>>>>>>> Cheers,
>>>>>>>>>>>  -Tom
>>>>>>>>>>> 
>>>>>>>>>>> 
>>>>>>>>>>>> On 09.09.2014, at 10:58, Tobias Soloschenko <
>>>>>>>>>> tobiassoloschenko@googlemail.com> wrote:
>>>>>>>>>>>> 
>>>>>>>>>>>> Hi all,
>>>>>>>>>>>> 
>>>>>>>>>>>> is there a way to register a global ajax event handler
>>>> within
>>>>>>>> Wicket?
>>>>>>>>>> For normal there is the AbstractDefaultAjaxBehavior which
>> is
>>>>> added
>>>>>>> to a
>>>>>>>>>> component. And then the CallbackScript can be obtained and
>>> used
>>>>>>> within
>>>>>>>> a
>>>>>>>>>> OnDomReadyHeaderItem for example.
>>>>>>>>>>>> 
>>>>>>>>>>>> Is there a way to do this on application level so that
>> Im
>>>> able
>>>>>> to
>>>>>>>> get
>>>>>>>>>> the CallbackScript from the instantiated Application?
>>>>>>>>>>>> 
>>>>>>>>>>>> kind regards
>>>>>>>>>>>> 
>>>>>>>>>>>> Tobias
>>>> ---------------------------------------------------------------------
>>>>>>>>>>>> To unsubscribe, e-mail:
>>> users-unsubscribe@wicket.apache.org
>>>>>>>>>>>> For additional commands, e-mail:
>>>> users-help@wicket.apache.org
>> ---------------------------------------------------------------------
>>>>>>>>>> To unsubscribe, e-mail:
>> users-unsubscribe@wicket.apache.org
>>>>>>>>>> For additional commands, e-mail:
>>> users-help@wicket.apache.org
>> 

---------------------------------------------------------------------
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Re: Global Ajax Event Handler

Posted by Tobias Soloschenko <to...@googlemail.com>.

Oh NO!!!!

This completely solved my problem!!!!

Now all is working like expected...

Now I'm able to render a Javascript-Callback-Function with a custom
EL-Function within a JSP and if I use this Javascript-Function in a link
for example I can update component on the current page. Example:

<wicket:jsp file="/TestPage.jsp" />

In JSP:

<a href="#" onClick="${wicket:createAjaxCallback()}">Update</a>

In WebPage with setStatelassHint(false):

    @Override
    public void onEvent(IEvent<?> event) {
    if (event.getPayload() instanceof GlobalAjaxEvent) {
        AjaxRequestTarget ajaxRequestTarget =
((GlobalAjaxEvent)event.getPayload()).getAjaxRequestTarget();
        label.setDefaultModelObject("updated panel");
        ajaxRequestTarget.add(label);
    }
 }

and in Application's init method:

GlobalAjaxResource.configure(this);

I will try out to make this call also available to forms or other html
elements within jsps and then I'm going to publish it on wicketstuff minis.
:-)

Thanks a lot for all the help and time you spend by solving this problem!

kind regards

Tobias



2014-09-10 12:16 GMT+02:00 Martin Grigorov <mg...@apache.org>:

> Tobias sent me a quickstart app.
>
> TestPage is stateless and thus never stored in the storages.
> Just add setStatelessHint(false) to its constructor and the problem
> disappears.
>
> Martin Grigorov
> Wicket Training and Consulting
> https://twitter.com/mtgrigorov
>
>
> On Tue, Sep 9, 2014 at 10:10 PM, Tobias Soloschenko <
> tobiassoloschenko@googlemail.com> wrote:
>
> > The usecase requires it :-) I send an example to you.
> >
> > I hope this will be possible because then you are also able to do ajax
> > requests from embedded jsp files. :-D
> >
> > thanks anyway!
> >
> > > Am 09.09.2014 um 16:29 schrieb "Richter, Marvin" <
> > Marvin.Richter@freenetdigital.com>:
> > >
> > > That definitely sounds like a really odd use case or am I wrong?
> > >
> > > Do you really want to generate the URL outside from the Wicket context?
> > > I mean this is something which is heavily tied to wicket anyway so why
> > not generating it inside it's context?
> > > And where do you need/use the final generated URL? I guess inside the
> > Wicket context ...
> > >
> > > Maybe you should rethinking your use case, I bet the problem you're
> > trying to solve can be solved much, much easier!
> > >
> > > Anyway .. wish you luck ;)
> > >
> > > -----Original Message-----
> > > From: Tobias Soloschenko [mailto:tobiassoloschenko@googlemail.com]
> > > Sent: Tuesday, September 09, 2014 2:58 PM
> > > To: users@wicket.apache.org
> > > Subject: Re: Global Ajax Event Handler
> > >
> > > Thats the point. It is not used within a Component / Behavior - so I
> > cant use getPage() ...
> > >
> > >> Am 09.09.2014 um 14:50 schrieb Martin Grigorov <mgrigorov@apache.org
> >:
> > >>
> > >> The UrlGenerator class is used somewhere where the Page is available,
> > no ?
> > >> In SomeComponent/SomeBehavior:
> > >>
> > >> UrlGenerator generator = new UrlGenerator(); Url url =
> > >> generator.generate(getPage().getPageId());
> > >>
> > >> Session.get().getPageManager().getPage(exisingAndNonExpiredPageId) is
> > >> the way to get a reference to the page.
> > >> Wicket uses this API internally every time you click a link or button.
> > >>
> > >> Martin Grigorov
> > >> Wicket Training and Consulting
> > >> https://twitter.com/mtgrigorov
> > >>
> > >>
> > >> On Tue, Sep 9, 2014 at 3:45 PM, Tobias Soloschenko <
> > >> tobiassoloschenko@googlemail.com> wrote:
> > >>
> > >>> And thats the question I was looking for - how do I get the current
> > >>> page id within the class that generates the url which is no component
> > >>> and the second question was how do I get the page to that id, because
> > >>> (Page)
> > >>> WebSession.get().getPageManager().getPage(i.get()) returns null for
> > >>> int i 0-10, event if I cleared the browsers cache / restarted the
> > server.
> > >>>
> > >>> kind regards and big thanks for all the help!
> > >>>
> > >>> Tobias
> > >>>
> > >>> 2014-09-09 14:28 GMT+02:00 Martin Grigorov <mg...@apache.org>:
> > >>>
> > >>>> Session#pageId is a counter that is used to give an id to the next
> > >>> created
> > >>>> page.
> > >>>> It is not the id of the currently used page!
> > >>>>
> > >>>> You will need to provide the pageId somehow to the class that
> > >>>> generates
> > >>> the
> > >>>> url.
> > >>>>
> > >>>> Martin Grigorov
> > >>>> Wicket Training and Consulting
> > >>>> https://twitter.com/mtgrigorov
> > >>>>
> > >>>>
> > >>>> On Tue, Sep 9, 2014 at 3:13 PM, Tobias Soloschenko <
> > >>>> tobiassoloschenko@googlemail.com> wrote:
> > >>>>
> > >>>>> The method getPage() is not available at the place where I'm
> > >>>>> building
> > >>> the
> > >>>>> link - I'm not within a component and I try to get the page by
> > >>>>> content
> > >>> of
> > >>>>> the session. :-)
> > >>>>>
> > >>>>> I didn't modified the Session - the pageId is stored in
> > >>>>> org.apache.wicket.Session.pageId which is an AtomicInteger
> > >>>>>
> > >>>>>
> > >>>>> 2014-09-09 14:06 GMT+02:00 Martin Grigorov <mg...@apache.org>:
> > >>>>>
> > >>>>>> Pass the pageId as a query string parameter.
> > >>>>>>
> > >>>>>> PageParameters params = new PageParameters(); params.set("pageId",
> > >>>>>> getPage().getPageId()); theUrlToTheReference =
> > >>>>>> requestCycle.urlFor(yourResRef, params);
> > >>>>>>
> > >>>>>> Then in the IResource (better extend AbstractResource) just read
> > >>>>>> it
> > >>>> from
> > >>>>>> the request parameters.
> > >>>>>>
> > >>>>>> Storing the pageId in the session is not OK because the user may
> > >>>>>> open
> > >>>> two
> > >>>>>> different pages in separate tabs/windows and this will break.
> > >>>>>>
> > >>>>>>
> > >>>>>> Martin Grigorov
> > >>>>>> Wicket Training and Consulting
> > >>>>>> https://twitter.com/mtgrigorov
> > >>>>>>
> > >>>>>>
> > >>>>>> On Tue, Sep 9, 2014 at 3:01 PM, Tobias Soloschenko <
> > >>>>>> tobiassoloschenko@googlemail.com> wrote:
> > >>>>>>
> > >>>>>>> Thanks again for the fast answer. My code now looks this way:
> > >>>>>>>
> > >>>>>>>           Field declaredField =
> > >>>>>>> WebSession.get().getClass().getSuperclass()
> > >>>>>>>               .getDeclaredField("pageId");
> > >>>>>>>
> > >>>>>>>           declaredField.setAccessible(true);
> > >>>>>>>           AtomicInteger i = (AtomicInteger)
> > >>>>>>> declaredField.get(WebSession.get());
> > >>>>>>>           Page page = (Page) WebSession.get().getPageManager()
> > >>>>>>>               .getPage(i.get());
> > >>>>>>>
> > >>>>>>>           AjaxRequestTarget newAjaxRequestTarget =
> > >>>> ((WebApplication)
> > >>>>>>> Application.get())
> > >>>>>>>               .newAjaxRequestTarget(page);
> > >>>>>>>
> > >>>>>>>           RequestCycle.get().scheduleRequestHandlerAfterCurrent(
> > >>>>>>>               newAjaxRequestTarget);
> > >>>>>>>
> > >>>>>>> I dont know how to get the current pageId but from the Session.
> > >>>>>>> The
> > >>>>> page
> > >>>>>> at
> > >>>>>>> this place is null. :-(
> > >>>>>>>
> > >>>>>>>
> > >>>>>>>
> > >>>>>>> 2014-09-09 13:53 GMT+02:00 Martin Grigorov <mgrigorov@apache.org
> >:
> > >>>>>>>
> > >>>>>>>> On Tue, Sep 9, 2014 at 2:05 PM, Tobias Soloschenko <
> > >>>>>>>> tobiassoloschenko@googlemail.com> wrote:
> > >>>>>>>>
> > >>>>>>>>> Hi again,
> > >>>>>>>>>
> > >>>>>>>>> I tried out that code you mentioned here.
> > >>>>>>>>> WebSession.get().getPageManager().getPage(int i) returns
> > >>>>>>> IManageablePage
> > >>>>>>>>> which is not applicable as argument for newAjaxRequestTarget.
> > >>>>>>>>
> > >>>>>>>> cast it
> > >>>>>>>> it is known that in your environment you don't use any custom
> > >>>>>>>> IManageablePage/IRequestablePage impls (see IPageFactory)
> > >>>>>>>>
> > >>>>>>>>
> > >>>>>>>>>
> > >>>>>>>>> The second thing is how do I get the instance of a page by
> > >>> class
> > >>>>> with
> > >>>>>>> the
> > >>>>>>>>> last page id not from within a component (this would be simple
> > >>>>>>>> getPage())?
> > >>>>>>>>
> > >>>>>>>> I didn't get this
> > >>>>>>>> Please re-phrase
> > >>>>>>>>
> > >>>>>>>>
> > >>>>>>>>>
> > >>>>>>>>> 2014-09-09 11:51 GMT+02:00 Martin Grigorov <
> > >>> mgrigorov@apache.org
> > >>>>> :
> > >>>>>>>>>
> > >>>>>>>>>> I've re-read the message and I think I got it.
> > >>>>>>>>>> What you really need is a mounted resource
> > >>>>>>>>>> (WebApplication#mountResource(someResourceReference))
> > >>>>>>>>>> To get a url to it use: theUrl =
> > >>>> requestCycle.urlFor(sameResRef,
> > >>>>>>>>>> parametersWithPageId)
> > >>>>>>>>>> Wicket.Ajax.get({"u": theUrl, ...}) In IResource#respond() you
> > >>>>>>>>>> can create AjaxRequestTarget with:
> > >>>>>>>>>>
> > >>>>>>>>>> Page page =
> > >>>>> session.getPageManager().get(parameters.get("pageId"))
> > >>>>>>>>>> target = webApplication.newAjaxRequestTarget(page)
> > >>>>>>>>>> requestCycle.scheduleRequestHandlerAfterCurrent(target);
> > >>>>>>>>>> page.send(page, Broadcast.BREADTH, new SomeEvent(target))
> > >>>>>>>>>>
> > >>>>>>>>>> in SomeComponent#onEvent() use
> > >>> someEvent.getTarget().add(this)
> > >>>> to
> > >>>>>> add
> > >>>>>>>> the
> > >>>>>>>>>> component when SomeEvent is broadcasted
> > >>>>>>>>>>
> > >>>>>>>>>> Martin Grigorov
> > >>>>>>>>>> Wicket Training and Consulting https://twitter.com/mtgrigorov
> > >>>>>>>>>>
> > >>>>>>>>>>
> > >>>>>>>>>> On Tue, Sep 9, 2014 at 12:40 PM, Richter, Marvin <
> > >>>>>>>>>> Marvin.Richter@freenetdigital.com> wrote:
> > >>>>>>>>>>
> > >>>>>>>>>>> What you are looking for is the Wicket Event mechanism.
> > >>>>>>>>>>>
> > >>>>>>>>>>> This allows you to send a broadcast to a specified
> > >>> Component
> > >>>>>> (e.g.
> > >>>>>>>> the
> > >>>>>>>>>>> current page) and a payload (e.g. your custom event type
> > >>>> which
> > >>>>>>>> contains
> > >>>>>>>>>>> information).
> > >>>>>>>>>>>
> > >>>>>>>>>>> In the Components which should react on the event you
> > >>>> override
> > >>>>>> the
> > >>>>>>>>> method
> > >>>>>>>>>>> onEvent, check if the event is of your type and if so, do
> > >>>> with
> > >>>>>> the
> > >>>>>>>>> event
> > >>>>>>>>>>> payload whatever you want.
> > >>>>>>>>>>>
> > >>>>>>>>>>> Check out
> > >>>
> http://www.wicket-library.com/wicket-examples/events/wicket/bookmarka
> > >>> ble/org.apache.wicket.examples.source.SourcesPage?1&SourcesPage_class
> > >>> =org.apache.wicket.examples.events.DecoupledAjaxUpdatePage
> > >>>>>>>>>>> for a good example.
> > >>>>>>>>>>>
> > >>>>>>>>>>> Best,
> > >>>>>>>>>>> Marvin
> > >>>>>>>>>>>
> > >>>>>>>>>>> -----Original Message-----
> > >>>>>>>>>>> From: Tobias Soloschenko [mailto:
> > >>>>>> tobiassoloschenko@googlemail.com]
> > >>>>>>>>>>> Sent: Tuesday, September 09, 2014 11:31 AM
> > >>>>>>>>>>> To: users@wicket.apache.org
> > >>>>>>>>>>> Subject: Re: Global Ajax Event Handler
> > >>>>>>>>>>>
> > >>>>>>>>>>> Hi,
> > >>>>>>>>>>>
> > >>>>>>>>>>> thanks for the answer, but this is only a client side event
> > >>>>> hook
> > >>>>>>> not
> > >>>>>>>>> for
> > >>>>>>>>>>> processing a request to the Server. I added a pseudo code
> > >>> to
> > >>>>> the
> > >>>>>>>>> question
> > >>>>>>>>>>> of martin who asked me what I exactly want to do.
> > >>>>>>>>>>>
> > >>>>>>>>>>> Thanks anyway for the fast answer!
> > >>>>>>>>>>>
> > >>>>>>>>>>> kind regards,
> > >>>>>>>>>>>
> > >>>>>>>>>>> Tobias
> > >>>>>>>>>>>
> > >>>>>>>>>>>> Am 09.09.2014 um 11:06 schrieb Tom GÃ¶tz <tom@decoded.de
> > >>>> :
> > >>>>>>>>>>>>
> > >>>>>>>>>>>> See
> > >>>>>>> https://cwiki.apache.org/confluence/display/WICKET/Wicket+Ajax
> > >>>>>>>> ,
> > >>>>>>>>>>> section "Global Ajax call listenersâ€œ.
> > >>>>>>>>>>>>
> > >>>>>>>>>>>> Cheers,
> > >>>>>>>>>>>> -Tom
> > >>>>>>>>>>>>
> > >>>>>>>>>>>>
> > >>>>>>>>>>>>> On 09.09.2014, at 10:58, Tobias Soloschenko <
> > >>>>>>>>>>> tobiassoloschenko@googlemail.com> wrote:
> > >>>>>>>>>>>>>
> > >>>>>>>>>>>>> Hi all,
> > >>>>>>>>>>>>>
> > >>>>>>>>>>>>> is there a way to register a global ajax event handler
> > >>>>> within
> > >>>>>>>>> Wicket?
> > >>>>>>>>>>> For normal there is the AbstractDefaultAjaxBehavior which
> > >>> is
> > >>>>>> added
> > >>>>>>>> to a
> > >>>>>>>>>>> component. And then the CallbackScript can be obtained and
> > >>>> used
> > >>>>>>>> within
> > >>>>>>>>> a
> > >>>>>>>>>>> OnDomReadyHeaderItem for example.
> > >>>>>>>>>>>>>
> > >>>>>>>>>>>>> Is there a way to do this on application level so that
> > >>> Im
> > >>>>> able
> > >>>>>>> to
> > >>>>>>>>> get
> > >>>>>>>>>>> the CallbackScript from the instantiated Application?
> > >>>>>>>>>>>>>
> > >>>>>>>>>>>>> kind regards
> > >>>>>>>>>>>>>
> > >>>>>>>>>>>>> Tobias
> > >>>>> -------------------------------------------------------------------
> > >>>>> --
> > >>>>>>>>>>>>> To unsubscribe, e-mail:
> > >>>> users-unsubscribe@wicket.apache.org
> > >>>>>>>>>>>>> For additional commands, e-mail:
> > >>>>> users-help@wicket.apache.org
> > >>> ---------------------------------------------------------------------
> > >>>>>>>>>>> To unsubscribe, e-mail:
> > >>> users-unsubscribe@wicket.apache.org
> > >>>>>>>>>>> For additional commands, e-mail:
> > >>>> users-help@wicket.apache.org
> > >
> > > ---------------------------------------------------------------------
> > > To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> > > For additional commands, e-mail: users-help@wicket.apache.org
> > >
> > >
> >
> B‹KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKCB• È
> > [œÝXœØÜšX™K  K[XZ[ ˆ \Ù\œË][œÝXœØÜšX™P ÚXÚÙ] ˜\ XÚ K›Ü™ÃB‘›Üˆ Y  ] [Û˜[
> > ÛÛ[X[™ Ë  K[XZ[ ˆ \Ù\œËZ [   ÚXÚÙ] ˜\ XÚ K›Ü™ÃBƒ
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> > For additional commands, e-mail: users-help@wicket.apache.org
> >
> >
>

Re: Global Ajax Event Handler

Posted by Martin Grigorov <mg...@apache.org>.

Tobias sent me a quickstart app.

TestPage is stateless and thus never stored in the storages.
Just add setStatelessHint(false) to its constructor and the problem
disappears.

Martin Grigorov
Wicket Training and Consulting
https://twitter.com/mtgrigorov


On Tue, Sep 9, 2014 at 10:10 PM, Tobias Soloschenko <
tobiassoloschenko@googlemail.com> wrote:

> The usecase requires it :-) I send an example to you.
>
> I hope this will be possible because then you are also able to do ajax
> requests from embedded jsp files. :-D
>
> thanks anyway!
>
> > Am 09.09.2014 um 16:29 schrieb "Richter, Marvin" <
> Marvin.Richter@freenetdigital.com>:
> >
> > That definitely sounds like a really odd use case or am I wrong?
> >
> > Do you really want to generate the URL outside from the Wicket context?
> > I mean this is something which is heavily tied to wicket anyway so why
> not generating it inside it's context?
> > And where do you need/use the final generated URL? I guess inside the
> Wicket context ...
> >
> > Maybe you should rethinking your use case, I bet the problem you're
> trying to solve can be solved much, much easier!
> >
> > Anyway .. wish you luck ;)
> >
> > -----Original Message-----
> > From: Tobias Soloschenko [mailto:tobiassoloschenko@googlemail.com]
> > Sent: Tuesday, September 09, 2014 2:58 PM
> > To: users@wicket.apache.org
> > Subject: Re: Global Ajax Event Handler
> >
> > Thats the point. It is not used within a Component / Behavior - so I
> cant use getPage() ...
> >
> >> Am 09.09.2014 um 14:50 schrieb Martin Grigorov <mg...@apache.org>:
> >>
> >> The UrlGenerator class is used somewhere where the Page is available,
> no ?
> >> In SomeComponent/SomeBehavior:
> >>
> >> UrlGenerator generator = new UrlGenerator(); Url url =
> >> generator.generate(getPage().getPageId());
> >>
> >> Session.get().getPageManager().getPage(exisingAndNonExpiredPageId) is
> >> the way to get a reference to the page.
> >> Wicket uses this API internally every time you click a link or button.
> >>
> >> Martin Grigorov
> >> Wicket Training and Consulting
> >> https://twitter.com/mtgrigorov
> >>
> >>
> >> On Tue, Sep 9, 2014 at 3:45 PM, Tobias Soloschenko <
> >> tobiassoloschenko@googlemail.com> wrote:
> >>
> >>> And thats the question I was looking for - how do I get the current
> >>> page id within the class that generates the url which is no component
> >>> and the second question was how do I get the page to that id, because
> >>> (Page)
> >>> WebSession.get().getPageManager().getPage(i.get()) returns null for
> >>> int i 0-10, event if I cleared the browsers cache / restarted the
> server.
> >>>
> >>> kind regards and big thanks for all the help!
> >>>
> >>> Tobias
> >>>
> >>> 2014-09-09 14:28 GMT+02:00 Martin Grigorov <mg...@apache.org>:
> >>>
> >>>> Session#pageId is a counter that is used to give an id to the next
> >>> created
> >>>> page.
> >>>> It is not the id of the currently used page!
> >>>>
> >>>> You will need to provide the pageId somehow to the class that
> >>>> generates
> >>> the
> >>>> url.
> >>>>
> >>>> Martin Grigorov
> >>>> Wicket Training and Consulting
> >>>> https://twitter.com/mtgrigorov
> >>>>
> >>>>
> >>>> On Tue, Sep 9, 2014 at 3:13 PM, Tobias Soloschenko <
> >>>> tobiassoloschenko@googlemail.com> wrote:
> >>>>
> >>>>> The method getPage() is not available at the place where I'm
> >>>>> building
> >>> the
> >>>>> link - I'm not within a component and I try to get the page by
> >>>>> content
> >>> of
> >>>>> the session. :-)
> >>>>>
> >>>>> I didn't modified the Session - the pageId is stored in
> >>>>> org.apache.wicket.Session.pageId which is an AtomicInteger
> >>>>>
> >>>>>
> >>>>> 2014-09-09 14:06 GMT+02:00 Martin Grigorov <mg...@apache.org>:
> >>>>>
> >>>>>> Pass the pageId as a query string parameter.
> >>>>>>
> >>>>>> PageParameters params = new PageParameters(); params.set("pageId",
> >>>>>> getPage().getPageId()); theUrlToTheReference =
> >>>>>> requestCycle.urlFor(yourResRef, params);
> >>>>>>
> >>>>>> Then in the IResource (better extend AbstractResource) just read
> >>>>>> it
> >>>> from
> >>>>>> the request parameters.
> >>>>>>
> >>>>>> Storing the pageId in the session is not OK because the user may
> >>>>>> open
> >>>> two
> >>>>>> different pages in separate tabs/windows and this will break.
> >>>>>>
> >>>>>>
> >>>>>> Martin Grigorov
> >>>>>> Wicket Training and Consulting
> >>>>>> https://twitter.com/mtgrigorov
> >>>>>>
> >>>>>>
> >>>>>> On Tue, Sep 9, 2014 at 3:01 PM, Tobias Soloschenko <
> >>>>>> tobiassoloschenko@googlemail.com> wrote:
> >>>>>>
> >>>>>>> Thanks again for the fast answer. My code now looks this way:
> >>>>>>>
> >>>>>>>           Field declaredField =
> >>>>>>> WebSession.get().getClass().getSuperclass()
> >>>>>>>               .getDeclaredField("pageId");
> >>>>>>>
> >>>>>>>           declaredField.setAccessible(true);
> >>>>>>>           AtomicInteger i = (AtomicInteger)
> >>>>>>> declaredField.get(WebSession.get());
> >>>>>>>           Page page = (Page) WebSession.get().getPageManager()
> >>>>>>>               .getPage(i.get());
> >>>>>>>
> >>>>>>>           AjaxRequestTarget newAjaxRequestTarget =
> >>>> ((WebApplication)
> >>>>>>> Application.get())
> >>>>>>>               .newAjaxRequestTarget(page);
> >>>>>>>
> >>>>>>>           RequestCycle.get().scheduleRequestHandlerAfterCurrent(
> >>>>>>>               newAjaxRequestTarget);
> >>>>>>>
> >>>>>>> I dont know how to get the current pageId but from the Session.
> >>>>>>> The
> >>>>> page
> >>>>>> at
> >>>>>>> this place is null. :-(
> >>>>>>>
> >>>>>>>
> >>>>>>>
> >>>>>>> 2014-09-09 13:53 GMT+02:00 Martin Grigorov <mg...@apache.org>:
> >>>>>>>
> >>>>>>>> On Tue, Sep 9, 2014 at 2:05 PM, Tobias Soloschenko <
> >>>>>>>> tobiassoloschenko@googlemail.com> wrote:
> >>>>>>>>
> >>>>>>>>> Hi again,
> >>>>>>>>>
> >>>>>>>>> I tried out that code you mentioned here.
> >>>>>>>>> WebSession.get().getPageManager().getPage(int i) returns
> >>>>>>> IManageablePage
> >>>>>>>>> which is not applicable as argument for newAjaxRequestTarget.
> >>>>>>>>
> >>>>>>>> cast it
> >>>>>>>> it is known that in your environment you don't use any custom
> >>>>>>>> IManageablePage/IRequestablePage impls (see IPageFactory)
> >>>>>>>>
> >>>>>>>>
> >>>>>>>>>
> >>>>>>>>> The second thing is how do I get the instance of a page by
> >>> class
> >>>>> with
> >>>>>>> the
> >>>>>>>>> last page id not from within a component (this would be simple
> >>>>>>>> getPage())?
> >>>>>>>>
> >>>>>>>> I didn't get this
> >>>>>>>> Please re-phrase
> >>>>>>>>
> >>>>>>>>
> >>>>>>>>>
> >>>>>>>>> 2014-09-09 11:51 GMT+02:00 Martin Grigorov <
> >>> mgrigorov@apache.org
> >>>>> :
> >>>>>>>>>
> >>>>>>>>>> I've re-read the message and I think I got it.
> >>>>>>>>>> What you really need is a mounted resource
> >>>>>>>>>> (WebApplication#mountResource(someResourceReference))
> >>>>>>>>>> To get a url to it use: theUrl =
> >>>> requestCycle.urlFor(sameResRef,
> >>>>>>>>>> parametersWithPageId)
> >>>>>>>>>> Wicket.Ajax.get({"u": theUrl, ...}) In IResource#respond() you
> >>>>>>>>>> can create AjaxRequestTarget with:
> >>>>>>>>>>
> >>>>>>>>>> Page page =
> >>>>> session.getPageManager().get(parameters.get("pageId"))
> >>>>>>>>>> target = webApplication.newAjaxRequestTarget(page)
> >>>>>>>>>> requestCycle.scheduleRequestHandlerAfterCurrent(target);
> >>>>>>>>>> page.send(page, Broadcast.BREADTH, new SomeEvent(target))
> >>>>>>>>>>
> >>>>>>>>>> in SomeComponent#onEvent() use
> >>> someEvent.getTarget().add(this)
> >>>> to
> >>>>>> add
> >>>>>>>> the
> >>>>>>>>>> component when SomeEvent is broadcasted
> >>>>>>>>>>
> >>>>>>>>>> Martin Grigorov
> >>>>>>>>>> Wicket Training and Consulting https://twitter.com/mtgrigorov
> >>>>>>>>>>
> >>>>>>>>>>
> >>>>>>>>>> On Tue, Sep 9, 2014 at 12:40 PM, Richter, Marvin <
> >>>>>>>>>> Marvin.Richter@freenetdigital.com> wrote:
> >>>>>>>>>>
> >>>>>>>>>>> What you are looking for is the Wicket Event mechanism.
> >>>>>>>>>>>
> >>>>>>>>>>> This allows you to send a broadcast to a specified
> >>> Component
> >>>>>> (e.g.
> >>>>>>>> the
> >>>>>>>>>>> current page) and a payload (e.g. your custom event type
> >>>> which
> >>>>>>>> contains
> >>>>>>>>>>> information).
> >>>>>>>>>>>
> >>>>>>>>>>> In the Components which should react on the event you
> >>>> override
> >>>>>> the
> >>>>>>>>> method
> >>>>>>>>>>> onEvent, check if the event is of your type and if so, do
> >>>> with
> >>>>>> the
> >>>>>>>>> event
> >>>>>>>>>>> payload whatever you want.
> >>>>>>>>>>>
> >>>>>>>>>>> Check out
> >>> http://www.wicket-library.com/wicket-examples/events/wicket/bookmarka
> >>> ble/org.apache.wicket.examples.source.SourcesPage?1&SourcesPage_class
> >>> =org.apache.wicket.examples.events.DecoupledAjaxUpdatePage
> >>>>>>>>>>> for a good example.
> >>>>>>>>>>>
> >>>>>>>>>>> Best,
> >>>>>>>>>>> Marvin
> >>>>>>>>>>>
> >>>>>>>>>>> -----Original Message-----
> >>>>>>>>>>> From: Tobias Soloschenko [mailto:
> >>>>>> tobiassoloschenko@googlemail.com]
> >>>>>>>>>>> Sent: Tuesday, September 09, 2014 11:31 AM
> >>>>>>>>>>> To: users@wicket.apache.org
> >>>>>>>>>>> Subject: Re: Global Ajax Event Handler
> >>>>>>>>>>>
> >>>>>>>>>>> Hi,
> >>>>>>>>>>>
> >>>>>>>>>>> thanks for the answer, but this is only a client side event
> >>>>> hook
> >>>>>>> not
> >>>>>>>>> for
> >>>>>>>>>>> processing a request to the Server. I added a pseudo code
> >>> to
> >>>>> the
> >>>>>>>>> question
> >>>>>>>>>>> of martin who asked me what I exactly want to do.
> >>>>>>>>>>>
> >>>>>>>>>>> Thanks anyway for the fast answer!
> >>>>>>>>>>>
> >>>>>>>>>>> kind regards,
> >>>>>>>>>>>
> >>>>>>>>>>> Tobias
> >>>>>>>>>>>
> >>>>>>>>>>>> Am 09.09.2014 um 11:06 schrieb Tom GÃ¶tz <tom@decoded.de
> >>>> :
> >>>>>>>>>>>>
> >>>>>>>>>>>> See
> >>>>>>> https://cwiki.apache.org/confluence/display/WICKET/Wicket+Ajax
> >>>>>>>> ,
> >>>>>>>>>>> section "Global Ajax call listenersâ€œ.
> >>>>>>>>>>>>
> >>>>>>>>>>>> Cheers,
> >>>>>>>>>>>> -Tom
> >>>>>>>>>>>>
> >>>>>>>>>>>>
> >>>>>>>>>>>>> On 09.09.2014, at 10:58, Tobias Soloschenko <
> >>>>>>>>>>> tobiassoloschenko@googlemail.com> wrote:
> >>>>>>>>>>>>>
> >>>>>>>>>>>>> Hi all,
> >>>>>>>>>>>>>
> >>>>>>>>>>>>> is there a way to register a global ajax event handler
> >>>>> within
> >>>>>>>>> Wicket?
> >>>>>>>>>>> For normal there is the AbstractDefaultAjaxBehavior which
> >>> is
> >>>>>> added
> >>>>>>>> to a
> >>>>>>>>>>> component. And then the CallbackScript can be obtained and
> >>>> used
> >>>>>>>> within
> >>>>>>>>> a
> >>>>>>>>>>> OnDomReadyHeaderItem for example.
> >>>>>>>>>>>>>
> >>>>>>>>>>>>> Is there a way to do this on application level so that
> >>> Im
> >>>>> able
> >>>>>>> to
> >>>>>>>>> get
> >>>>>>>>>>> the CallbackScript from the instantiated Application?
> >>>>>>>>>>>>>
> >>>>>>>>>>>>> kind regards
> >>>>>>>>>>>>>
> >>>>>>>>>>>>> Tobias
> >>>>> -------------------------------------------------------------------
> >>>>> --
> >>>>>>>>>>>>> To unsubscribe, e-mail:
> >>>> users-unsubscribe@wicket.apache.org
> >>>>>>>>>>>>> For additional commands, e-mail:
> >>>>> users-help@wicket.apache.org
> >>> ---------------------------------------------------------------------
> >>>>>>>>>>> To unsubscribe, e-mail:
> >>> users-unsubscribe@wicket.apache.org
> >>>>>>>>>>> For additional commands, e-mail:
> >>>> users-help@wicket.apache.org
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> > For additional commands, e-mail: users-help@wicket.apache.org
> >
> >
> B‹KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKCB• È
> [œÝXœØÜšX™K  K[XZ[ ˆ \Ù\œË][œÝXœØÜšX™P ÚXÚÙ] ˜\ XÚ K›Ü™ÃB‘›Üˆ Y  ] [Û˜[
> ÛÛ[X[™ Ë  K[XZ[ ˆ \Ù\œËZ [   ÚXÚÙ] ˜\ XÚ K›Ü™ÃBƒ
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> For additional commands, e-mail: users-help@wicket.apache.org
>
>

Re: Global Ajax Event Handler

Posted by Tobias Soloschenko <to...@googlemail.com>.

The usecase requires it :-) I send an example to you.

I hope this will be possible because then you are also able to do ajax requests from embedded jsp files. :-D

thanks anyway! 

> Am 09.09.2014 um 16:29 schrieb "Richter, Marvin" <Ma...@freenetdigital.com>:
> 
> That definitely sounds like a really odd use case or am I wrong?
> 
> Do you really want to generate the URL outside from the Wicket context?
> I mean this is something which is heavily tied to wicket anyway so why not generating it inside it's context?
> And where do you need/use the final generated URL? I guess inside the Wicket context ... 
> 
> Maybe you should rethinking your use case, I bet the problem you're trying to solve can be solved much, much easier!
> 
> Anyway .. wish you luck ;)
> 
> -----Original Message-----
> From: Tobias Soloschenko [mailto:tobiassoloschenko@googlemail.com] 
> Sent: Tuesday, September 09, 2014 2:58 PM
> To: users@wicket.apache.org
> Subject: Re: Global Ajax Event Handler
> 
> Thats the point. It is not used within a Component / Behavior - so I cant use getPage() ...
> 
>> Am 09.09.2014 um 14:50 schrieb Martin Grigorov <mg...@apache.org>:
>> 
>> The UrlGenerator class is used somewhere where the Page is available, no ?
>> In SomeComponent/SomeBehavior:
>> 
>> UrlGenerator generator = new UrlGenerator(); Url url = 
>> generator.generate(getPage().getPageId());
>> 
>> Session.get().getPageManager().getPage(exisingAndNonExpiredPageId) is 
>> the way to get a reference to the page.
>> Wicket uses this API internally every time you click a link or button.
>> 
>> Martin Grigorov
>> Wicket Training and Consulting
>> https://twitter.com/mtgrigorov
>> 
>> 
>> On Tue, Sep 9, 2014 at 3:45 PM, Tobias Soloschenko < 
>> tobiassoloschenko@googlemail.com> wrote:
>> 
>>> And thats the question I was looking for - how do I get the current 
>>> page id within the class that generates the url which is no component 
>>> and the second question was how do I get the page to that id, because 
>>> (Page)
>>> WebSession.get().getPageManager().getPage(i.get()) returns null for 
>>> int i 0-10, event if I cleared the browsers cache / restarted the server.
>>> 
>>> kind regards and big thanks for all the help!
>>> 
>>> Tobias
>>> 
>>> 2014-09-09 14:28 GMT+02:00 Martin Grigorov <mg...@apache.org>:
>>> 
>>>> Session#pageId is a counter that is used to give an id to the next
>>> created
>>>> page.
>>>> It is not the id of the currently used page!
>>>> 
>>>> You will need to provide the pageId somehow to the class that 
>>>> generates
>>> the
>>>> url.
>>>> 
>>>> Martin Grigorov
>>>> Wicket Training and Consulting
>>>> https://twitter.com/mtgrigorov
>>>> 
>>>> 
>>>> On Tue, Sep 9, 2014 at 3:13 PM, Tobias Soloschenko < 
>>>> tobiassoloschenko@googlemail.com> wrote:
>>>> 
>>>>> The method getPage() is not available at the place where I'm 
>>>>> building
>>> the
>>>>> link - I'm not within a component and I try to get the page by 
>>>>> content
>>> of
>>>>> the session. :-)
>>>>> 
>>>>> I didn't modified the Session - the pageId is stored in 
>>>>> org.apache.wicket.Session.pageId which is an AtomicInteger
>>>>> 
>>>>> 
>>>>> 2014-09-09 14:06 GMT+02:00 Martin Grigorov <mg...@apache.org>:
>>>>> 
>>>>>> Pass the pageId as a query string parameter.
>>>>>> 
>>>>>> PageParameters params = new PageParameters(); params.set("pageId", 
>>>>>> getPage().getPageId()); theUrlToTheReference = 
>>>>>> requestCycle.urlFor(yourResRef, params);
>>>>>> 
>>>>>> Then in the IResource (better extend AbstractResource) just read 
>>>>>> it
>>>> from
>>>>>> the request parameters.
>>>>>> 
>>>>>> Storing the pageId in the session is not OK because the user may 
>>>>>> open
>>>> two
>>>>>> different pages in separate tabs/windows and this will break.
>>>>>> 
>>>>>> 
>>>>>> Martin Grigorov
>>>>>> Wicket Training and Consulting
>>>>>> https://twitter.com/mtgrigorov
>>>>>> 
>>>>>> 
>>>>>> On Tue, Sep 9, 2014 at 3:01 PM, Tobias Soloschenko < 
>>>>>> tobiassoloschenko@googlemail.com> wrote:
>>>>>> 
>>>>>>> Thanks again for the fast answer. My code now looks this way:
>>>>>>> 
>>>>>>>           Field declaredField =
>>>>>>> WebSession.get().getClass().getSuperclass()
>>>>>>>               .getDeclaredField("pageId");
>>>>>>> 
>>>>>>>           declaredField.setAccessible(true);
>>>>>>>           AtomicInteger i = (AtomicInteger) 
>>>>>>> declaredField.get(WebSession.get());
>>>>>>>           Page page = (Page) WebSession.get().getPageManager()
>>>>>>>               .getPage(i.get());
>>>>>>> 
>>>>>>>           AjaxRequestTarget newAjaxRequestTarget =
>>>> ((WebApplication)
>>>>>>> Application.get())
>>>>>>>               .newAjaxRequestTarget(page);
>>>>>>> 
>>>>>>>           RequestCycle.get().scheduleRequestHandlerAfterCurrent(
>>>>>>>               newAjaxRequestTarget);
>>>>>>> 
>>>>>>> I dont know how to get the current pageId but from the Session. 
>>>>>>> The
>>>>> page
>>>>>> at
>>>>>>> this place is null. :-(
>>>>>>> 
>>>>>>> 
>>>>>>> 
>>>>>>> 2014-09-09 13:53 GMT+02:00 Martin Grigorov <mg...@apache.org>:
>>>>>>> 
>>>>>>>> On Tue, Sep 9, 2014 at 2:05 PM, Tobias Soloschenko < 
>>>>>>>> tobiassoloschenko@googlemail.com> wrote:
>>>>>>>> 
>>>>>>>>> Hi again,
>>>>>>>>> 
>>>>>>>>> I tried out that code you mentioned here.
>>>>>>>>> WebSession.get().getPageManager().getPage(int i) returns
>>>>>>> IManageablePage
>>>>>>>>> which is not applicable as argument for newAjaxRequestTarget.
>>>>>>>> 
>>>>>>>> cast it
>>>>>>>> it is known that in your environment you don't use any custom 
>>>>>>>> IManageablePage/IRequestablePage impls (see IPageFactory)
>>>>>>>> 
>>>>>>>> 
>>>>>>>>> 
>>>>>>>>> The second thing is how do I get the instance of a page by
>>> class
>>>>> with
>>>>>>> the
>>>>>>>>> last page id not from within a component (this would be simple
>>>>>>>> getPage())?
>>>>>>>> 
>>>>>>>> I didn't get this
>>>>>>>> Please re-phrase
>>>>>>>> 
>>>>>>>> 
>>>>>>>>> 
>>>>>>>>> 2014-09-09 11:51 GMT+02:00 Martin Grigorov <
>>> mgrigorov@apache.org
>>>>> :
>>>>>>>>> 
>>>>>>>>>> I've re-read the message and I think I got it.
>>>>>>>>>> What you really need is a mounted resource
>>>>>>>>>> (WebApplication#mountResource(someResourceReference))
>>>>>>>>>> To get a url to it use: theUrl =
>>>> requestCycle.urlFor(sameResRef,
>>>>>>>>>> parametersWithPageId)
>>>>>>>>>> Wicket.Ajax.get({"u": theUrl, ...}) In IResource#respond() you 
>>>>>>>>>> can create AjaxRequestTarget with:
>>>>>>>>>> 
>>>>>>>>>> Page page =
>>>>> session.getPageManager().get(parameters.get("pageId"))
>>>>>>>>>> target = webApplication.newAjaxRequestTarget(page)
>>>>>>>>>> requestCycle.scheduleRequestHandlerAfterCurrent(target);
>>>>>>>>>> page.send(page, Broadcast.BREADTH, new SomeEvent(target))
>>>>>>>>>> 
>>>>>>>>>> in SomeComponent#onEvent() use
>>> someEvent.getTarget().add(this)
>>>> to
>>>>>> add
>>>>>>>> the
>>>>>>>>>> component when SomeEvent is broadcasted
>>>>>>>>>> 
>>>>>>>>>> Martin Grigorov
>>>>>>>>>> Wicket Training and Consulting https://twitter.com/mtgrigorov
>>>>>>>>>> 
>>>>>>>>>> 
>>>>>>>>>> On Tue, Sep 9, 2014 at 12:40 PM, Richter, Marvin < 
>>>>>>>>>> Marvin.Richter@freenetdigital.com> wrote:
>>>>>>>>>> 
>>>>>>>>>>> What you are looking for is the Wicket Event mechanism.
>>>>>>>>>>> 
>>>>>>>>>>> This allows you to send a broadcast to a specified
>>> Component
>>>>>> (e.g.
>>>>>>>> the
>>>>>>>>>>> current page) and a payload (e.g. your custom event type
>>>> which
>>>>>>>> contains
>>>>>>>>>>> information).
>>>>>>>>>>> 
>>>>>>>>>>> In the Components which should react on the event you
>>>> override
>>>>>> the
>>>>>>>>> method
>>>>>>>>>>> onEvent, check if the event is of your type and if so, do
>>>> with
>>>>>> the
>>>>>>>>> event
>>>>>>>>>>> payload whatever you want.
>>>>>>>>>>> 
>>>>>>>>>>> Check out
>>> http://www.wicket-library.com/wicket-examples/events/wicket/bookmarka
>>> ble/org.apache.wicket.examples.source.SourcesPage?1&SourcesPage_class
>>> =org.apache.wicket.examples.events.DecoupledAjaxUpdatePage
>>>>>>>>>>> for a good example.
>>>>>>>>>>> 
>>>>>>>>>>> Best,
>>>>>>>>>>> Marvin
>>>>>>>>>>> 
>>>>>>>>>>> -----Original Message-----
>>>>>>>>>>> From: Tobias Soloschenko [mailto:
>>>>>> tobiassoloschenko@googlemail.com]
>>>>>>>>>>> Sent: Tuesday, September 09, 2014 11:31 AM
>>>>>>>>>>> To: users@wicket.apache.org
>>>>>>>>>>> Subject: Re: Global Ajax Event Handler
>>>>>>>>>>> 
>>>>>>>>>>> Hi,
>>>>>>>>>>> 
>>>>>>>>>>> thanks for the answer, but this is only a client side event
>>>>> hook
>>>>>>> not
>>>>>>>>> for
>>>>>>>>>>> processing a request to the Server. I added a pseudo code
>>> to
>>>>> the
>>>>>>>>> question
>>>>>>>>>>> of martin who asked me what I exactly want to do.
>>>>>>>>>>> 
>>>>>>>>>>> Thanks anyway for the fast answer!
>>>>>>>>>>> 
>>>>>>>>>>> kind regards,
>>>>>>>>>>> 
>>>>>>>>>>> Tobias
>>>>>>>>>>> 
>>>>>>>>>>>> Am 09.09.2014 um 11:06 schrieb Tom GÃ¶tz <tom@decoded.de
>>>> :
>>>>>>>>>>>> 
>>>>>>>>>>>> See
>>>>>>> https://cwiki.apache.org/confluence/display/WICKET/Wicket+Ajax
>>>>>>>> ,
>>>>>>>>>>> section "Global Ajax call listenersâ.
>>>>>>>>>>>> 
>>>>>>>>>>>> Cheers,
>>>>>>>>>>>> -Tom
>>>>>>>>>>>> 
>>>>>>>>>>>> 
>>>>>>>>>>>>> On 09.09.2014, at 10:58, Tobias Soloschenko <
>>>>>>>>>>> tobiassoloschenko@googlemail.com> wrote:
>>>>>>>>>>>>> 
>>>>>>>>>>>>> Hi all,
>>>>>>>>>>>>> 
>>>>>>>>>>>>> is there a way to register a global ajax event handler
>>>>> within
>>>>>>>>> Wicket?
>>>>>>>>>>> For normal there is the AbstractDefaultAjaxBehavior which
>>> is
>>>>>> added
>>>>>>>> to a
>>>>>>>>>>> component. And then the CallbackScript can be obtained and
>>>> used
>>>>>>>> within
>>>>>>>>> a
>>>>>>>>>>> OnDomReadyHeaderItem for example.
>>>>>>>>>>>>> 
>>>>>>>>>>>>> Is there a way to do this on application level so that
>>> Im
>>>>> able
>>>>>>> to
>>>>>>>>> get
>>>>>>>>>>> the CallbackScript from the instantiated Application?
>>>>>>>>>>>>> 
>>>>>>>>>>>>> kind regards
>>>>>>>>>>>>> 
>>>>>>>>>>>>> Tobias
>>>>> -------------------------------------------------------------------
>>>>> --
>>>>>>>>>>>>> To unsubscribe, e-mail:
>>>> users-unsubscribe@wicket.apache.org
>>>>>>>>>>>>> For additional commands, e-mail:
>>>>> users-help@wicket.apache.org
>>> ---------------------------------------------------------------------
>>>>>>>>>>> To unsubscribe, e-mail:
>>> users-unsubscribe@wicket.apache.org
>>>>>>>>>>> For additional commands, e-mail:
>>>> users-help@wicket.apache.org
> 
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> For additional commands, e-mail: users-help@wicket.apache.org
> 
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RE: Global Ajax Event Handler

Posted by "Richter, Marvin" <Ma...@freenetdigital.com>.

That definitely sounds like a really odd use case or am I wrong?

Do you really want to generate the URL outside from the Wicket context?
I mean this is something which is heavily tied to wicket anyway so why not generating it inside it's context?
And where do you need/use the final generated URL? I guess inside the Wicket context ... 

Maybe you should rethinking your use case, I bet the problem you're trying to solve can be solved much, much easier!

Anyway .. wish you luck ;)

-----Original Message-----
From: Tobias Soloschenko [mailto:tobiassoloschenko@googlemail.com] 
Sent: Tuesday, September 09, 2014 2:58 PM
To: users@wicket.apache.org
Subject: Re: Global Ajax Event Handler

Thats the point. It is not used within a Component / Behavior - so I cant use getPage() ...

> Am 09.09.2014 um 14:50 schrieb Martin Grigorov <mg...@apache.org>:
> 
> The UrlGenerator class is used somewhere where the Page is available, no ?
> In SomeComponent/SomeBehavior:
> 
> UrlGenerator generator = new UrlGenerator(); Url url = 
> generator.generate(getPage().getPageId());
> 
> Session.get().getPageManager().getPage(exisingAndNonExpiredPageId) is 
> the way to get a reference to the page.
> Wicket uses this API internally every time you click a link or button.
> 
> Martin Grigorov
> Wicket Training and Consulting
> https://twitter.com/mtgrigorov
> 
> 
> On Tue, Sep 9, 2014 at 3:45 PM, Tobias Soloschenko < 
> tobiassoloschenko@googlemail.com> wrote:
> 
>> And thats the question I was looking for - how do I get the current 
>> page id within the class that generates the url which is no component 
>> and the second question was how do I get the page to that id, because 
>> (Page)
>> WebSession.get().getPageManager().getPage(i.get()) returns null for 
>> int i 0-10, event if I cleared the browsers cache / restarted the server.
>> 
>> kind regards and big thanks for all the help!
>> 
>> Tobias
>> 
>> 2014-09-09 14:28 GMT+02:00 Martin Grigorov <mg...@apache.org>:
>> 
>>> Session#pageId is a counter that is used to give an id to the next
>> created
>>> page.
>>> It is not the id of the currently used page!
>>> 
>>> You will need to provide the pageId somehow to the class that 
>>> generates
>> the
>>> url.
>>> 
>>> Martin Grigorov
>>> Wicket Training and Consulting
>>> https://twitter.com/mtgrigorov
>>> 
>>> 
>>> On Tue, Sep 9, 2014 at 3:13 PM, Tobias Soloschenko < 
>>> tobiassoloschenko@googlemail.com> wrote:
>>> 
>>>> The method getPage() is not available at the place where I'm 
>>>> building
>> the
>>>> link - I'm not within a component and I try to get the page by 
>>>> content
>> of
>>>> the session. :-)
>>>> 
>>>> I didn't modified the Session - the pageId is stored in 
>>>> org.apache.wicket.Session.pageId which is an AtomicInteger
>>>> 
>>>> 
>>>> 2014-09-09 14:06 GMT+02:00 Martin Grigorov <mg...@apache.org>:
>>>> 
>>>>> Pass the pageId as a query string parameter.
>>>>> 
>>>>> PageParameters params = new PageParameters(); params.set("pageId", 
>>>>> getPage().getPageId()); theUrlToTheReference = 
>>>>> requestCycle.urlFor(yourResRef, params);
>>>>> 
>>>>> Then in the IResource (better extend AbstractResource) just read 
>>>>> it
>>> from
>>>>> the request parameters.
>>>>> 
>>>>> Storing the pageId in the session is not OK because the user may 
>>>>> open
>>> two
>>>>> different pages in separate tabs/windows and this will break.
>>>>> 
>>>>> 
>>>>> Martin Grigorov
>>>>> Wicket Training and Consulting
>>>>> https://twitter.com/mtgrigorov
>>>>> 
>>>>> 
>>>>> On Tue, Sep 9, 2014 at 3:01 PM, Tobias Soloschenko < 
>>>>> tobiassoloschenko@googlemail.com> wrote:
>>>>> 
>>>>>> Thanks again for the fast answer. My code now looks this way:
>>>>>> 
>>>>>>            Field declaredField =
>>>>>> WebSession.get().getClass().getSuperclass()
>>>>>>                .getDeclaredField("pageId");
>>>>>> 
>>>>>>            declaredField.setAccessible(true);
>>>>>>            AtomicInteger i = (AtomicInteger) 
>>>>>> declaredField.get(WebSession.get());
>>>>>>            Page page = (Page) WebSession.get().getPageManager()
>>>>>>                .getPage(i.get());
>>>>>> 
>>>>>>            AjaxRequestTarget newAjaxRequestTarget =
>>> ((WebApplication)
>>>>>> Application.get())
>>>>>>                .newAjaxRequestTarget(page);
>>>>>> 
>>>>>>            RequestCycle.get().scheduleRequestHandlerAfterCurrent(
>>>>>>                newAjaxRequestTarget);
>>>>>> 
>>>>>> I dont know how to get the current pageId but from the Session. 
>>>>>> The
>>>> page
>>>>> at
>>>>>> this place is null. :-(
>>>>>> 
>>>>>> 
>>>>>> 
>>>>>> 2014-09-09 13:53 GMT+02:00 Martin Grigorov <mg...@apache.org>:
>>>>>> 
>>>>>>> On Tue, Sep 9, 2014 at 2:05 PM, Tobias Soloschenko < 
>>>>>>> tobiassoloschenko@googlemail.com> wrote:
>>>>>>> 
>>>>>>>> Hi again,
>>>>>>>> 
>>>>>>>> I tried out that code you mentioned here.
>>>>>>>> WebSession.get().getPageManager().getPage(int i) returns
>>>>>> IManageablePage
>>>>>>>> which is not applicable as argument for newAjaxRequestTarget.
>>>>>>> 
>>>>>>> cast it
>>>>>>> it is known that in your environment you don't use any custom 
>>>>>>> IManageablePage/IRequestablePage impls (see IPageFactory)
>>>>>>> 
>>>>>>> 
>>>>>>>> 
>>>>>>>> The second thing is how do I get the instance of a page by
>> class
>>>> with
>>>>>> the
>>>>>>>> last page id not from within a component (this would be simple
>>>>>>> getPage())?
>>>>>>> 
>>>>>>> I didn't get this
>>>>>>> Please re-phrase
>>>>>>> 
>>>>>>> 
>>>>>>>> 
>>>>>>>> 2014-09-09 11:51 GMT+02:00 Martin Grigorov <
>> mgrigorov@apache.org
>>>> :
>>>>>>>> 
>>>>>>>>> I've re-read the message and I think I got it.
>>>>>>>>> What you really need is a mounted resource
>>>>>>>>> (WebApplication#mountResource(someResourceReference))
>>>>>>>>> To get a url to it use: theUrl =
>>> requestCycle.urlFor(sameResRef,
>>>>>>>>> parametersWithPageId)
>>>>>>>>> Wicket.Ajax.get({"u": theUrl, ...}) In IResource#respond() you 
>>>>>>>>> can create AjaxRequestTarget with:
>>>>>>>>> 
>>>>>>>>> Page page =
>>>> session.getPageManager().get(parameters.get("pageId"))
>>>>>>>>> target = webApplication.newAjaxRequestTarget(page)
>>>>>>>>> requestCycle.scheduleRequestHandlerAfterCurrent(target);
>>>>>>>>> page.send(page, Broadcast.BREADTH, new SomeEvent(target))
>>>>>>>>> 
>>>>>>>>> in SomeComponent#onEvent() use
>> someEvent.getTarget().add(this)
>>> to
>>>>> add
>>>>>>> the
>>>>>>>>> component when SomeEvent is broadcasted
>>>>>>>>> 
>>>>>>>>> Martin Grigorov
>>>>>>>>> Wicket Training and Consulting https://twitter.com/mtgrigorov
>>>>>>>>> 
>>>>>>>>> 
>>>>>>>>> On Tue, Sep 9, 2014 at 12:40 PM, Richter, Marvin < 
>>>>>>>>> Marvin.Richter@freenetdigital.com> wrote:
>>>>>>>>> 
>>>>>>>>>> What you are looking for is the Wicket Event mechanism.
>>>>>>>>>> 
>>>>>>>>>> This allows you to send a broadcast to a specified
>> Component
>>>>> (e.g.
>>>>>>> the
>>>>>>>>>> current page) and a payload (e.g. your custom event type
>>> which
>>>>>>> contains
>>>>>>>>>> information).
>>>>>>>>>> 
>>>>>>>>>> In the Components which should react on the event you
>>> override
>>>>> the
>>>>>>>> method
>>>>>>>>>> onEvent, check if the event is of your type and if so, do
>>> with
>>>>> the
>>>>>>>> event
>>>>>>>>>> payload whatever you want.
>>>>>>>>>> 
>>>>>>>>>> Check out
>> http://www.wicket-library.com/wicket-examples/events/wicket/bookmarka
>> ble/org.apache.wicket.examples.source.SourcesPage?1&SourcesPage_class
>> =org.apache.wicket.examples.events.DecoupledAjaxUpdatePage
>>>>>>>>>> for a good example.
>>>>>>>>>> 
>>>>>>>>>> Best,
>>>>>>>>>> Marvin
>>>>>>>>>> 
>>>>>>>>>> -----Original Message-----
>>>>>>>>>> From: Tobias Soloschenko [mailto:
>>>>> tobiassoloschenko@googlemail.com]
>>>>>>>>>> Sent: Tuesday, September 09, 2014 11:31 AM
>>>>>>>>>> To: users@wicket.apache.org
>>>>>>>>>> Subject: Re: Global Ajax Event Handler
>>>>>>>>>> 
>>>>>>>>>> Hi,
>>>>>>>>>> 
>>>>>>>>>> thanks for the answer, but this is only a client side event
>>>> hook
>>>>>> not
>>>>>>>> for
>>>>>>>>>> processing a request to the Server. I added a pseudo code
>> to
>>>> the
>>>>>>>> question
>>>>>>>>>> of martin who asked me what I exactly want to do.
>>>>>>>>>> 
>>>>>>>>>> Thanks anyway for the fast answer!
>>>>>>>>>> 
>>>>>>>>>> kind regards,
>>>>>>>>>> 
>>>>>>>>>> Tobias
>>>>>>>>>> 
>>>>>>>>>>> Am 09.09.2014 um 11:06 schrieb Tom Götz <tom@decoded.de
>>> :
>>>>>>>>>>> 
>>>>>>>>>>> See
>>>>>> https://cwiki.apache.org/confluence/display/WICKET/Wicket+Ajax
>>>>>>> ,
>>>>>>>>>> section "Global Ajax call listeners“.
>>>>>>>>>>> 
>>>>>>>>>>> Cheers,
>>>>>>>>>>>  -Tom
>>>>>>>>>>> 
>>>>>>>>>>> 
>>>>>>>>>>>> On 09.09.2014, at 10:58, Tobias Soloschenko <
>>>>>>>>>> tobiassoloschenko@googlemail.com> wrote:
>>>>>>>>>>>> 
>>>>>>>>>>>> Hi all,
>>>>>>>>>>>> 
>>>>>>>>>>>> is there a way to register a global ajax event handler
>>>> within
>>>>>>>> Wicket?
>>>>>>>>>> For normal there is the AbstractDefaultAjaxBehavior which
>> is
>>>>> added
>>>>>>> to a
>>>>>>>>>> component. And then the CallbackScript can be obtained and
>>> used
>>>>>>> within
>>>>>>>> a
>>>>>>>>>> OnDomReadyHeaderItem for example.
>>>>>>>>>>>> 
>>>>>>>>>>>> Is there a way to do this on application level so that
>> Im
>>>> able
>>>>>> to
>>>>>>>> get
>>>>>>>>>> the CallbackScript from the instantiated Application?
>>>>>>>>>>>> 
>>>>>>>>>>>> kind regards
>>>>>>>>>>>> 
>>>>>>>>>>>> Tobias
>>>> -------------------------------------------------------------------
>>>> --
>>>>>>>>>>>> To unsubscribe, e-mail:
>>> users-unsubscribe@wicket.apache.org
>>>>>>>>>>>> For additional commands, e-mail:
>>>> users-help@wicket.apache.org
>> ---------------------------------------------------------------------
>>>>>>>>>> To unsubscribe, e-mail:
>> users-unsubscribe@wicket.apache.org
>>>>>>>>>> For additional commands, e-mail:
>>> users-help@wicket.apache.org
>> 

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Re: Global Ajax Event Handler

Posted by Tobias Soloschenko <to...@googlemail.com>.

Thats the point. It is not used within a Component / Behavior - so I cant use getPage() ...

> Am 09.09.2014 um 14:50 schrieb Martin Grigorov <mg...@apache.org>:
> 
> The UrlGenerator class is used somewhere where the Page is available, no ?
> In SomeComponent/SomeBehavior:
> 
> UrlGenerator generator = new UrlGenerator();
> Url url = generator.generate(getPage().getPageId());
> 
> Session.get().getPageManager().getPage(exisingAndNonExpiredPageId) is the
> way to get a reference to the page.
> Wicket uses this API internally every time you click a link or button.
> 
> Martin Grigorov
> Wicket Training and Consulting
> https://twitter.com/mtgrigorov
> 
> 
> On Tue, Sep 9, 2014 at 3:45 PM, Tobias Soloschenko <
> tobiassoloschenko@googlemail.com> wrote:
> 
>> And thats the question I was looking for - how do I get the current page id
>> within the class that generates the url which is no component and the
>> second question was how do I get the page to that id, because (Page)
>> WebSession.get().getPageManager().getPage(i.get()) returns null for int i
>> 0-10, event if I cleared the browsers cache / restarted the server.
>> 
>> kind regards and big thanks for all the help!
>> 
>> Tobias
>> 
>> 2014-09-09 14:28 GMT+02:00 Martin Grigorov <mg...@apache.org>:
>> 
>>> Session#pageId is a counter that is used to give an id to the next
>> created
>>> page.
>>> It is not the id of the currently used page!
>>> 
>>> You will need to provide the pageId somehow to the class that generates
>> the
>>> url.
>>> 
>>> Martin Grigorov
>>> Wicket Training and Consulting
>>> https://twitter.com/mtgrigorov
>>> 
>>> 
>>> On Tue, Sep 9, 2014 at 3:13 PM, Tobias Soloschenko <
>>> tobiassoloschenko@googlemail.com> wrote:
>>> 
>>>> The method getPage() is not available at the place where I'm building
>> the
>>>> link - I'm not within a component and I try to get the page by content
>> of
>>>> the session. :-)
>>>> 
>>>> I didn't modified the Session - the pageId is stored in
>>>> org.apache.wicket.Session.pageId which is an AtomicInteger
>>>> 
>>>> 
>>>> 2014-09-09 14:06 GMT+02:00 Martin Grigorov <mg...@apache.org>:
>>>> 
>>>>> Pass the pageId as a query string parameter.
>>>>> 
>>>>> PageParameters params = new PageParameters();
>>>>> params.set("pageId", getPage().getPageId());
>>>>> theUrlToTheReference = requestCycle.urlFor(yourResRef, params);
>>>>> 
>>>>> Then in the IResource (better extend AbstractResource) just read it
>>> from
>>>>> the request parameters.
>>>>> 
>>>>> Storing the pageId in the session is not OK because the user may open
>>> two
>>>>> different pages in separate tabs/windows and this will break.
>>>>> 
>>>>> 
>>>>> Martin Grigorov
>>>>> Wicket Training and Consulting
>>>>> https://twitter.com/mtgrigorov
>>>>> 
>>>>> 
>>>>> On Tue, Sep 9, 2014 at 3:01 PM, Tobias Soloschenko <
>>>>> tobiassoloschenko@googlemail.com> wrote:
>>>>> 
>>>>>> Thanks again for the fast answer. My code now looks this way:
>>>>>> 
>>>>>>            Field declaredField =
>>>>>> WebSession.get().getClass().getSuperclass()
>>>>>>                .getDeclaredField("pageId");
>>>>>> 
>>>>>>            declaredField.setAccessible(true);
>>>>>>            AtomicInteger i = (AtomicInteger)
>>>>>> declaredField.get(WebSession.get());
>>>>>>            Page page = (Page) WebSession.get().getPageManager()
>>>>>>                .getPage(i.get());
>>>>>> 
>>>>>>            AjaxRequestTarget newAjaxRequestTarget =
>>> ((WebApplication)
>>>>>> Application.get())
>>>>>>                .newAjaxRequestTarget(page);
>>>>>> 
>>>>>>            RequestCycle.get().scheduleRequestHandlerAfterCurrent(
>>>>>>                newAjaxRequestTarget);
>>>>>> 
>>>>>> I dont know how to get the current pageId but from the Session. The
>>>> page
>>>>> at
>>>>>> this place is null. :-(
>>>>>> 
>>>>>> 
>>>>>> 
>>>>>> 2014-09-09 13:53 GMT+02:00 Martin Grigorov <mg...@apache.org>:
>>>>>> 
>>>>>>> On Tue, Sep 9, 2014 at 2:05 PM, Tobias Soloschenko <
>>>>>>> tobiassoloschenko@googlemail.com> wrote:
>>>>>>> 
>>>>>>>> Hi again,
>>>>>>>> 
>>>>>>>> I tried out that code you mentioned here.
>>>>>>>> WebSession.get().getPageManager().getPage(int i) returns
>>>>>> IManageablePage
>>>>>>>> which is not applicable as argument for newAjaxRequestTarget.
>>>>>>> 
>>>>>>> cast it
>>>>>>> it is known that in your environment you don't use any custom
>>>>>>> IManageablePage/IRequestablePage impls (see IPageFactory)
>>>>>>> 
>>>>>>> 
>>>>>>>> 
>>>>>>>> The second thing is how do I get the instance of a page by
>> class
>>>> with
>>>>>> the
>>>>>>>> last page id not from within a component (this would be simple
>>>>>>> getPage())?
>>>>>>> 
>>>>>>> I didn't get this
>>>>>>> Please re-phrase
>>>>>>> 
>>>>>>> 
>>>>>>>> 
>>>>>>>> 2014-09-09 11:51 GMT+02:00 Martin Grigorov <
>> mgrigorov@apache.org
>>>> :
>>>>>>>> 
>>>>>>>>> I've re-read the message and I think I got it.
>>>>>>>>> What you really need is a mounted resource
>>>>>>>>> (WebApplication#mountResource(someResourceReference))
>>>>>>>>> To get a url to it use: theUrl =
>>> requestCycle.urlFor(sameResRef,
>>>>>>>>> parametersWithPageId)
>>>>>>>>> Wicket.Ajax.get({"u": theUrl, ...})
>>>>>>>>> In IResource#respond() you can create AjaxRequestTarget with:
>>>>>>>>> 
>>>>>>>>> Page page =
>>>> session.getPageManager().get(parameters.get("pageId"))
>>>>>>>>> target = webApplication.newAjaxRequestTarget(page)
>>>>>>>>> requestCycle.scheduleRequestHandlerAfterCurrent(target);
>>>>>>>>> page.send(page, Broadcast.BREADTH, new SomeEvent(target))
>>>>>>>>> 
>>>>>>>>> in SomeComponent#onEvent() use
>> someEvent.getTarget().add(this)
>>> to
>>>>> add
>>>>>>> the
>>>>>>>>> component when SomeEvent is broadcasted
>>>>>>>>> 
>>>>>>>>> Martin Grigorov
>>>>>>>>> Wicket Training and Consulting
>>>>>>>>> https://twitter.com/mtgrigorov
>>>>>>>>> 
>>>>>>>>> 
>>>>>>>>> On Tue, Sep 9, 2014 at 12:40 PM, Richter, Marvin <
>>>>>>>>> Marvin.Richter@freenetdigital.com> wrote:
>>>>>>>>> 
>>>>>>>>>> What you are looking for is the Wicket Event mechanism.
>>>>>>>>>> 
>>>>>>>>>> This allows you to send a broadcast to a specified
>> Component
>>>>> (e.g.
>>>>>>> the
>>>>>>>>>> current page) and a payload (e.g. your custom event type
>>> which
>>>>>>> contains
>>>>>>>>>> information).
>>>>>>>>>> 
>>>>>>>>>> In the Components which should react on the event you
>>> override
>>>>> the
>>>>>>>> method
>>>>>>>>>> onEvent, check if the event is of your type and if so, do
>>> with
>>>>> the
>>>>>>>> event
>>>>>>>>>> payload whatever you want.
>>>>>>>>>> 
>>>>>>>>>> Check out
>> http://www.wicket-library.com/wicket-examples/events/wicket/bookmarkable/org.apache.wicket.examples.source.SourcesPage?1&SourcesPage_class=org.apache.wicket.examples.events.DecoupledAjaxUpdatePage
>>>>>>>>>> for a good example.
>>>>>>>>>> 
>>>>>>>>>> Best,
>>>>>>>>>> Marvin
>>>>>>>>>> 
>>>>>>>>>> -----Original Message-----
>>>>>>>>>> From: Tobias Soloschenko [mailto:
>>>>> tobiassoloschenko@googlemail.com]
>>>>>>>>>> Sent: Tuesday, September 09, 2014 11:31 AM
>>>>>>>>>> To: users@wicket.apache.org
>>>>>>>>>> Subject: Re: Global Ajax Event Handler
>>>>>>>>>> 
>>>>>>>>>> Hi,
>>>>>>>>>> 
>>>>>>>>>> thanks for the answer, but this is only a client side event
>>>> hook
>>>>>> not
>>>>>>>> for
>>>>>>>>>> processing a request to the Server. I added a pseudo code
>> to
>>>> the
>>>>>>>> question
>>>>>>>>>> of martin who asked me what I exactly want to do.
>>>>>>>>>> 
>>>>>>>>>> Thanks anyway for the fast answer!
>>>>>>>>>> 
>>>>>>>>>> kind regards,
>>>>>>>>>> 
>>>>>>>>>> Tobias
>>>>>>>>>> 
>>>>>>>>>>> Am 09.09.2014 um 11:06 schrieb Tom Götz <tom@decoded.de
>>> :
>>>>>>>>>>> 
>>>>>>>>>>> See
>>>>>> https://cwiki.apache.org/confluence/display/WICKET/Wicket+Ajax
>>>>>>> ,
>>>>>>>>>> section "Global Ajax call listeners“.
>>>>>>>>>>> 
>>>>>>>>>>> Cheers,
>>>>>>>>>>>  -Tom
>>>>>>>>>>> 
>>>>>>>>>>> 
>>>>>>>>>>>> On 09.09.2014, at 10:58, Tobias Soloschenko <
>>>>>>>>>> tobiassoloschenko@googlemail.com> wrote:
>>>>>>>>>>>> 
>>>>>>>>>>>> Hi all,
>>>>>>>>>>>> 
>>>>>>>>>>>> is there a way to register a global ajax event handler
>>>> within
>>>>>>>> Wicket?
>>>>>>>>>> For normal there is the AbstractDefaultAjaxBehavior which
>> is
>>>>> added
>>>>>>> to a
>>>>>>>>>> component. And then the CallbackScript can be obtained and
>>> used
>>>>>>> within
>>>>>>>> a
>>>>>>>>>> OnDomReadyHeaderItem for example.
>>>>>>>>>>>> 
>>>>>>>>>>>> Is there a way to do this on application level so that
>> Im
>>>> able
>>>>>> to
>>>>>>>> get
>>>>>>>>>> the CallbackScript from the instantiated Application?
>>>>>>>>>>>> 
>>>>>>>>>>>> kind regards
>>>>>>>>>>>> 
>>>>>>>>>>>> Tobias
>>>> ---------------------------------------------------------------------
>>>>>>>>>>>> To unsubscribe, e-mail:
>>> users-unsubscribe@wicket.apache.org
>>>>>>>>>>>> For additional commands, e-mail:
>>>> users-help@wicket.apache.org
>> ---------------------------------------------------------------------
>>>>>>>>>> To unsubscribe, e-mail:
>> users-unsubscribe@wicket.apache.org
>>>>>>>>>> For additional commands, e-mail:
>>> users-help@wicket.apache.org
>> 

---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
For additional commands, e-mail: users-help@wicket.apache.org

Re: Global Ajax Event Handler

Posted by Martin Grigorov <mg...@apache.org>.

The UrlGenerator class is used somewhere where the Page is available, no ?
In SomeComponent/SomeBehavior:

UrlGenerator generator = new UrlGenerator();
Url url = generator.generate(getPage().getPageId());

Session.get().getPageManager().getPage(exisingAndNonExpiredPageId) is the
way to get a reference to the page.
Wicket uses this API internally every time you click a link or button.

Martin Grigorov
Wicket Training and Consulting
https://twitter.com/mtgrigorov


On Tue, Sep 9, 2014 at 3:45 PM, Tobias Soloschenko <
tobiassoloschenko@googlemail.com> wrote:

> And thats the question I was looking for - how do I get the current page id
> within the class that generates the url which is no component and the
> second question was how do I get the page to that id, because (Page)
> WebSession.get().getPageManager().getPage(i.get()) returns null for int i
> 0-10, event if I cleared the browsers cache / restarted the server.
>
> kind regards and big thanks for all the help!
>
> Tobias
>
> 2014-09-09 14:28 GMT+02:00 Martin Grigorov <mg...@apache.org>:
>
> > Session#pageId is a counter that is used to give an id to the next
> created
> > page.
> > It is not the id of the currently used page!
> >
> > You will need to provide the pageId somehow to the class that generates
> the
> > url.
> >
> > Martin Grigorov
> > Wicket Training and Consulting
> > https://twitter.com/mtgrigorov
> >
> >
> > On Tue, Sep 9, 2014 at 3:13 PM, Tobias Soloschenko <
> > tobiassoloschenko@googlemail.com> wrote:
> >
> > > The method getPage() is not available at the place where I'm building
> the
> > > link - I'm not within a component and I try to get the page by content
> of
> > > the session. :-)
> > >
> > > I didn't modified the Session - the pageId is stored in
> > > org.apache.wicket.Session.pageId which is an AtomicInteger
> > >
> > >
> > > 2014-09-09 14:06 GMT+02:00 Martin Grigorov <mg...@apache.org>:
> > >
> > > > Pass the pageId as a query string parameter.
> > > >
> > > > PageParameters params = new PageParameters();
> > > > params.set("pageId", getPage().getPageId());
> > > > theUrlToTheReference = requestCycle.urlFor(yourResRef, params);
> > > >
> > > > Then in the IResource (better extend AbstractResource) just read it
> > from
> > > > the request parameters.
> > > >
> > > > Storing the pageId in the session is not OK because the user may open
> > two
> > > > different pages in separate tabs/windows and this will break.
> > > >
> > > >
> > > > Martin Grigorov
> > > > Wicket Training and Consulting
> > > > https://twitter.com/mtgrigorov
> > > >
> > > >
> > > > On Tue, Sep 9, 2014 at 3:01 PM, Tobias Soloschenko <
> > > > tobiassoloschenko@googlemail.com> wrote:
> > > >
> > > > > Thanks again for the fast answer. My code now looks this way:
> > > > >
> > > > >             Field declaredField =
> > > > > WebSession.get().getClass().getSuperclass()
> > > > >                 .getDeclaredField("pageId");
> > > > >
> > > > >             declaredField.setAccessible(true);
> > > > >             AtomicInteger i = (AtomicInteger)
> > > > > declaredField.get(WebSession.get());
> > > > >             Page page = (Page) WebSession.get().getPageManager()
> > > > >                 .getPage(i.get());
> > > > >
> > > > >             AjaxRequestTarget newAjaxRequestTarget =
> > ((WebApplication)
> > > > > Application.get())
> > > > >                 .newAjaxRequestTarget(page);
> > > > >
> > > > >             RequestCycle.get().scheduleRequestHandlerAfterCurrent(
> > > > >                 newAjaxRequestTarget);
> > > > >
> > > > > I dont know how to get the current pageId but from the Session. The
> > > page
> > > > at
> > > > > this place is null. :-(
> > > > >
> > > > >
> > > > >
> > > > > 2014-09-09 13:53 GMT+02:00 Martin Grigorov <mg...@apache.org>:
> > > > >
> > > > > > On Tue, Sep 9, 2014 at 2:05 PM, Tobias Soloschenko <
> > > > > > tobiassoloschenko@googlemail.com> wrote:
> > > > > >
> > > > > > > Hi again,
> > > > > > >
> > > > > > > I tried out that code you mentioned here.
> > > > > > > WebSession.get().getPageManager().getPage(int i) returns
> > > > > IManageablePage
> > > > > > > which is not applicable as argument for newAjaxRequestTarget.
> > > > > > >
> > > > > >
> > > > > > cast it
> > > > > > it is known that in your environment you don't use any custom
> > > > > > IManageablePage/IRequestablePage impls (see IPageFactory)
> > > > > >
> > > > > >
> > > > > > >
> > > > > > > The second thing is how do I get the instance of a page by
> class
> > > with
> > > > > the
> > > > > > > last page id not from within a component (this would be simple
> > > > > > getPage())?
> > > > > > >
> > > > > >
> > > > > > I didn't get this
> > > > > > Please re-phrase
> > > > > >
> > > > > >
> > > > > > >
> > > > > > > 2014-09-09 11:51 GMT+02:00 Martin Grigorov <
> mgrigorov@apache.org
> > >:
> > > > > > >
> > > > > > > > I've re-read the message and I think I got it.
> > > > > > > > What you really need is a mounted resource
> > > > > > > > (WebApplication#mountResource(someResourceReference))
> > > > > > > > To get a url to it use: theUrl =
> > requestCycle.urlFor(sameResRef,
> > > > > > > > parametersWithPageId)
> > > > > > > > Wicket.Ajax.get({"u": theUrl, ...})
> > > > > > > > In IResource#respond() you can create AjaxRequestTarget with:
> > > > > > > >
> > > > > > > > Page page =
> > > session.getPageManager().get(parameters.get("pageId"))
> > > > > > > > target = webApplication.newAjaxRequestTarget(page)
> > > > > > > > requestCycle.scheduleRequestHandlerAfterCurrent(target);
> > > > > > > > page.send(page, Broadcast.BREADTH, new SomeEvent(target))
> > > > > > > >
> > > > > > > > in SomeComponent#onEvent() use
> someEvent.getTarget().add(this)
> > to
> > > > add
> > > > > > the
> > > > > > > > component when SomeEvent is broadcasted
> > > > > > > >
> > > > > > > > Martin Grigorov
> > > > > > > > Wicket Training and Consulting
> > > > > > > > https://twitter.com/mtgrigorov
> > > > > > > >
> > > > > > > >
> > > > > > > > On Tue, Sep 9, 2014 at 12:40 PM, Richter, Marvin <
> > > > > > > > Marvin.Richter@freenetdigital.com> wrote:
> > > > > > > >
> > > > > > > > > What you are looking for is the Wicket Event mechanism.
> > > > > > > > >
> > > > > > > > > This allows you to send a broadcast to a specified
> Component
> > > > (e.g.
> > > > > > the
> > > > > > > > > current page) and a payload (e.g. your custom event type
> > which
> > > > > > contains
> > > > > > > > > information).
> > > > > > > > >
> > > > > > > > > In the Components which should react on the event you
> > override
> > > > the
> > > > > > > method
> > > > > > > > > onEvent, check if the event is of your type and if so, do
> > with
> > > > the
> > > > > > > event
> > > > > > > > > payload whatever you want.
> > > > > > > > >
> > > > > > > > > Check out
> > > > > > > > >
> > > > > > > >
> > > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
> http://www.wicket-library.com/wicket-examples/events/wicket/bookmarkable/org.apache.wicket.examples.source.SourcesPage?1&SourcesPage_class=org.apache.wicket.examples.events.DecoupledAjaxUpdatePage
> > > > > > > > > for a good example.
> > > > > > > > >
> > > > > > > > > Best,
> > > > > > > > > Marvin
> > > > > > > > >
> > > > > > > > > -----Original Message-----
> > > > > > > > > From: Tobias Soloschenko [mailto:
> > > > tobiassoloschenko@googlemail.com]
> > > > > > > > > Sent: Tuesday, September 09, 2014 11:31 AM
> > > > > > > > > To: users@wicket.apache.org
> > > > > > > > > Subject: Re: Global Ajax Event Handler
> > > > > > > > >
> > > > > > > > > Hi,
> > > > > > > > >
> > > > > > > > > thanks for the answer, but this is only a client side event
> > > hook
> > > > > not
> > > > > > > for
> > > > > > > > > processing a request to the Server. I added a pseudo code
> to
> > > the
> > > > > > > question
> > > > > > > > > of martin who asked me what I exactly want to do.
> > > > > > > > >
> > > > > > > > > Thanks anyway for the fast answer!
> > > > > > > > >
> > > > > > > > > kind regards,
> > > > > > > > >
> > > > > > > > > Tobias
> > > > > > > > >
> > > > > > > > > > Am 09.09.2014 um 11:06 schrieb Tom Götz <tom@decoded.de
> >:
> > > > > > > > > >
> > > > > > > > > > See
> > > > > https://cwiki.apache.org/confluence/display/WICKET/Wicket+Ajax
> > > > > > ,
> > > > > > > > > section "Global Ajax call listeners“.
> > > > > > > > > >
> > > > > > > > > > Cheers,
> > > > > > > > > >   -Tom
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > >> On 09.09.2014, at 10:58, Tobias Soloschenko <
> > > > > > > > > tobiassoloschenko@googlemail.com> wrote:
> > > > > > > > > >>
> > > > > > > > > >> Hi all,
> > > > > > > > > >>
> > > > > > > > > >> is there a way to register a global ajax event handler
> > > within
> > > > > > > Wicket?
> > > > > > > > > For normal there is the AbstractDefaultAjaxBehavior which
> is
> > > > added
> > > > > > to a
> > > > > > > > > component. And then the CallbackScript can be obtained and
> > used
> > > > > > within
> > > > > > > a
> > > > > > > > > OnDomReadyHeaderItem for example.
> > > > > > > > > >>
> > > > > > > > > >> Is there a way to do this on application level so that
> Im
> > > able
> > > > > to
> > > > > > > get
> > > > > > > > > the CallbackScript from the instantiated Application?
> > > > > > > > > >>
> > > > > > > > > >> kind regards
> > > > > > > > > >>
> > > > > > > > > >> Tobias
> > > > > > > > > >>
> > > > > > >
> > > ---------------------------------------------------------------------
> > > > > > > > > >> To unsubscribe, e-mail:
> > users-unsubscribe@wicket.apache.org
> > > > > > > > > >> For additional commands, e-mail:
> > > users-help@wicket.apache.org
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > >
> ---------------------------------------------------------------------
> > > > > > > > > To unsubscribe, e-mail:
> users-unsubscribe@wicket.apache.org
> > > > > > > > > For additional commands, e-mail:
> > users-help@wicket.apache.org
> > > > > > > > >
> > > > > > > > >
> > > > > > > >
> > > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
>

Re: Global Ajax Event Handler

Posted by Tobias Soloschenko <to...@googlemail.com>.

And thats the question I was looking for - how do I get the current page id
within the class that generates the url which is no component and the
second question was how do I get the page to that id, because (Page)
WebSession.get().getPageManager().getPage(i.get()) returns null for int i
0-10, event if I cleared the browsers cache / restarted the server.

kind regards and big thanks for all the help!

Tobias

2014-09-09 14:28 GMT+02:00 Martin Grigorov <mg...@apache.org>:

> Session#pageId is a counter that is used to give an id to the next created
> page.
> It is not the id of the currently used page!
>
> You will need to provide the pageId somehow to the class that generates the
> url.
>
> Martin Grigorov
> Wicket Training and Consulting
> https://twitter.com/mtgrigorov
>
>
> On Tue, Sep 9, 2014 at 3:13 PM, Tobias Soloschenko <
> tobiassoloschenko@googlemail.com> wrote:
>
> > The method getPage() is not available at the place where I'm building the
> > link - I'm not within a component and I try to get the page by content of
> > the session. :-)
> >
> > I didn't modified the Session - the pageId is stored in
> > org.apache.wicket.Session.pageId which is an AtomicInteger
> >
> >
> > 2014-09-09 14:06 GMT+02:00 Martin Grigorov <mg...@apache.org>:
> >
> > > Pass the pageId as a query string parameter.
> > >
> > > PageParameters params = new PageParameters();
> > > params.set("pageId", getPage().getPageId());
> > > theUrlToTheReference = requestCycle.urlFor(yourResRef, params);
> > >
> > > Then in the IResource (better extend AbstractResource) just read it
> from
> > > the request parameters.
> > >
> > > Storing the pageId in the session is not OK because the user may open
> two
> > > different pages in separate tabs/windows and this will break.
> > >
> > >
> > > Martin Grigorov
> > > Wicket Training and Consulting
> > > https://twitter.com/mtgrigorov
> > >
> > >
> > > On Tue, Sep 9, 2014 at 3:01 PM, Tobias Soloschenko <
> > > tobiassoloschenko@googlemail.com> wrote:
> > >
> > > > Thanks again for the fast answer. My code now looks this way:
> > > >
> > > >             Field declaredField =
> > > > WebSession.get().getClass().getSuperclass()
> > > >                 .getDeclaredField("pageId");
> > > >
> > > >             declaredField.setAccessible(true);
> > > >             AtomicInteger i = (AtomicInteger)
> > > > declaredField.get(WebSession.get());
> > > >             Page page = (Page) WebSession.get().getPageManager()
> > > >                 .getPage(i.get());
> > > >
> > > >             AjaxRequestTarget newAjaxRequestTarget =
> ((WebApplication)
> > > > Application.get())
> > > >                 .newAjaxRequestTarget(page);
> > > >
> > > >             RequestCycle.get().scheduleRequestHandlerAfterCurrent(
> > > >                 newAjaxRequestTarget);
> > > >
> > > > I dont know how to get the current pageId but from the Session. The
> > page
> > > at
> > > > this place is null. :-(
> > > >
> > > >
> > > >
> > > > 2014-09-09 13:53 GMT+02:00 Martin Grigorov <mg...@apache.org>:
> > > >
> > > > > On Tue, Sep 9, 2014 at 2:05 PM, Tobias Soloschenko <
> > > > > tobiassoloschenko@googlemail.com> wrote:
> > > > >
> > > > > > Hi again,
> > > > > >
> > > > > > I tried out that code you mentioned here.
> > > > > > WebSession.get().getPageManager().getPage(int i) returns
> > > > IManageablePage
> > > > > > which is not applicable as argument for newAjaxRequestTarget.
> > > > > >
> > > > >
> > > > > cast it
> > > > > it is known that in your environment you don't use any custom
> > > > > IManageablePage/IRequestablePage impls (see IPageFactory)
> > > > >
> > > > >
> > > > > >
> > > > > > The second thing is how do I get the instance of a page by class
> > with
> > > > the
> > > > > > last page id not from within a component (this would be simple
> > > > > getPage())?
> > > > > >
> > > > >
> > > > > I didn't get this
> > > > > Please re-phrase
> > > > >
> > > > >
> > > > > >
> > > > > > 2014-09-09 11:51 GMT+02:00 Martin Grigorov <mgrigorov@apache.org
> >:
> > > > > >
> > > > > > > I've re-read the message and I think I got it.
> > > > > > > What you really need is a mounted resource
> > > > > > > (WebApplication#mountResource(someResourceReference))
> > > > > > > To get a url to it use: theUrl =
> requestCycle.urlFor(sameResRef,
> > > > > > > parametersWithPageId)
> > > > > > > Wicket.Ajax.get({"u": theUrl, ...})
> > > > > > > In IResource#respond() you can create AjaxRequestTarget with:
> > > > > > >
> > > > > > > Page page =
> > session.getPageManager().get(parameters.get("pageId"))
> > > > > > > target = webApplication.newAjaxRequestTarget(page)
> > > > > > > requestCycle.scheduleRequestHandlerAfterCurrent(target);
> > > > > > > page.send(page, Broadcast.BREADTH, new SomeEvent(target))
> > > > > > >
> > > > > > > in SomeComponent#onEvent() use someEvent.getTarget().add(this)
> to
> > > add
> > > > > the
> > > > > > > component when SomeEvent is broadcasted
> > > > > > >
> > > > > > > Martin Grigorov
> > > > > > > Wicket Training and Consulting
> > > > > > > https://twitter.com/mtgrigorov
> > > > > > >
> > > > > > >
> > > > > > > On Tue, Sep 9, 2014 at 12:40 PM, Richter, Marvin <
> > > > > > > Marvin.Richter@freenetdigital.com> wrote:
> > > > > > >
> > > > > > > > What you are looking for is the Wicket Event mechanism.
> > > > > > > >
> > > > > > > > This allows you to send a broadcast to a specified Component
> > > (e.g.
> > > > > the
> > > > > > > > current page) and a payload (e.g. your custom event type
> which
> > > > > contains
> > > > > > > > information).
> > > > > > > >
> > > > > > > > In the Components which should react on the event you
> override
> > > the
> > > > > > method
> > > > > > > > onEvent, check if the event is of your type and if so, do
> with
> > > the
> > > > > > event
> > > > > > > > payload whatever you want.
> > > > > > > >
> > > > > > > > Check out
> > > > > > > >
> > > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
> http://www.wicket-library.com/wicket-examples/events/wicket/bookmarkable/org.apache.wicket.examples.source.SourcesPage?1&SourcesPage_class=org.apache.wicket.examples.events.DecoupledAjaxUpdatePage
> > > > > > > > for a good example.
> > > > > > > >
> > > > > > > > Best,
> > > > > > > > Marvin
> > > > > > > >
> > > > > > > > -----Original Message-----
> > > > > > > > From: Tobias Soloschenko [mailto:
> > > tobiassoloschenko@googlemail.com]
> > > > > > > > Sent: Tuesday, September 09, 2014 11:31 AM
> > > > > > > > To: users@wicket.apache.org
> > > > > > > > Subject: Re: Global Ajax Event Handler
> > > > > > > >
> > > > > > > > Hi,
> > > > > > > >
> > > > > > > > thanks for the answer, but this is only a client side event
> > hook
> > > > not
> > > > > > for
> > > > > > > > processing a request to the Server. I added a pseudo code to
> > the
> > > > > > question
> > > > > > > > of martin who asked me what I exactly want to do.
> > > > > > > >
> > > > > > > > Thanks anyway for the fast answer!
> > > > > > > >
> > > > > > > > kind regards,
> > > > > > > >
> > > > > > > > Tobias
> > > > > > > >
> > > > > > > > > Am 09.09.2014 um 11:06 schrieb Tom Götz <to...@decoded.de>:
> > > > > > > > >
> > > > > > > > > See
> > > > https://cwiki.apache.org/confluence/display/WICKET/Wicket+Ajax
> > > > > ,
> > > > > > > > section "Global Ajax call listeners“.
> > > > > > > > >
> > > > > > > > > Cheers,
> > > > > > > > >   -Tom
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >> On 09.09.2014, at 10:58, Tobias Soloschenko <
> > > > > > > > tobiassoloschenko@googlemail.com> wrote:
> > > > > > > > >>
> > > > > > > > >> Hi all,
> > > > > > > > >>
> > > > > > > > >> is there a way to register a global ajax event handler
> > within
> > > > > > Wicket?
> > > > > > > > For normal there is the AbstractDefaultAjaxBehavior which is
> > > added
> > > > > to a
> > > > > > > > component. And then the CallbackScript can be obtained and
> used
> > > > > within
> > > > > > a
> > > > > > > > OnDomReadyHeaderItem for example.
> > > > > > > > >>
> > > > > > > > >> Is there a way to do this on application level so that Im
> > able
> > > > to
> > > > > > get
> > > > > > > > the CallbackScript from the instantiated Application?
> > > > > > > > >>
> > > > > > > > >> kind regards
> > > > > > > > >>
> > > > > > > > >> Tobias
> > > > > > > > >>
> > > > > >
> > ---------------------------------------------------------------------
> > > > > > > > >> To unsubscribe, e-mail:
> users-unsubscribe@wicket.apache.org
> > > > > > > > >> For additional commands, e-mail:
> > users-help@wicket.apache.org
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > ---------------------------------------------------------------------
> > > > > > > > To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> > > > > > > > For additional commands, e-mail:
> users-help@wicket.apache.org
> > > > > > > >
> > > > > > > >
> > > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
>

Re: Global Ajax Event Handler

Posted by Martin Grigorov <mg...@apache.org>.

Session#pageId is a counter that is used to give an id to the next created
page.
It is not the id of the currently used page!

You will need to provide the pageId somehow to the class that generates the
url.

Martin Grigorov
Wicket Training and Consulting
https://twitter.com/mtgrigorov


On Tue, Sep 9, 2014 at 3:13 PM, Tobias Soloschenko <
tobiassoloschenko@googlemail.com> wrote:

> The method getPage() is not available at the place where I'm building the
> link - I'm not within a component and I try to get the page by content of
> the session. :-)
>
> I didn't modified the Session - the pageId is stored in
> org.apache.wicket.Session.pageId which is an AtomicInteger
>
>
> 2014-09-09 14:06 GMT+02:00 Martin Grigorov <mg...@apache.org>:
>
> > Pass the pageId as a query string parameter.
> >
> > PageParameters params = new PageParameters();
> > params.set("pageId", getPage().getPageId());
> > theUrlToTheReference = requestCycle.urlFor(yourResRef, params);
> >
> > Then in the IResource (better extend AbstractResource) just read it from
> > the request parameters.
> >
> > Storing the pageId in the session is not OK because the user may open two
> > different pages in separate tabs/windows and this will break.
> >
> >
> > Martin Grigorov
> > Wicket Training and Consulting
> > https://twitter.com/mtgrigorov
> >
> >
> > On Tue, Sep 9, 2014 at 3:01 PM, Tobias Soloschenko <
> > tobiassoloschenko@googlemail.com> wrote:
> >
> > > Thanks again for the fast answer. My code now looks this way:
> > >
> > >             Field declaredField =
> > > WebSession.get().getClass().getSuperclass()
> > >                 .getDeclaredField("pageId");
> > >
> > >             declaredField.setAccessible(true);
> > >             AtomicInteger i = (AtomicInteger)
> > > declaredField.get(WebSession.get());
> > >             Page page = (Page) WebSession.get().getPageManager()
> > >                 .getPage(i.get());
> > >
> > >             AjaxRequestTarget newAjaxRequestTarget = ((WebApplication)
> > > Application.get())
> > >                 .newAjaxRequestTarget(page);
> > >
> > >             RequestCycle.get().scheduleRequestHandlerAfterCurrent(
> > >                 newAjaxRequestTarget);
> > >
> > > I dont know how to get the current pageId but from the Session. The
> page
> > at
> > > this place is null. :-(
> > >
> > >
> > >
> > > 2014-09-09 13:53 GMT+02:00 Martin Grigorov <mg...@apache.org>:
> > >
> > > > On Tue, Sep 9, 2014 at 2:05 PM, Tobias Soloschenko <
> > > > tobiassoloschenko@googlemail.com> wrote:
> > > >
> > > > > Hi again,
> > > > >
> > > > > I tried out that code you mentioned here.
> > > > > WebSession.get().getPageManager().getPage(int i) returns
> > > IManageablePage
> > > > > which is not applicable as argument for newAjaxRequestTarget.
> > > > >
> > > >
> > > > cast it
> > > > it is known that in your environment you don't use any custom
> > > > IManageablePage/IRequestablePage impls (see IPageFactory)
> > > >
> > > >
> > > > >
> > > > > The second thing is how do I get the instance of a page by class
> with
> > > the
> > > > > last page id not from within a component (this would be simple
> > > > getPage())?
> > > > >
> > > >
> > > > I didn't get this
> > > > Please re-phrase
> > > >
> > > >
> > > > >
> > > > > 2014-09-09 11:51 GMT+02:00 Martin Grigorov <mg...@apache.org>:
> > > > >
> > > > > > I've re-read the message and I think I got it.
> > > > > > What you really need is a mounted resource
> > > > > > (WebApplication#mountResource(someResourceReference))
> > > > > > To get a url to it use: theUrl = requestCycle.urlFor(sameResRef,
> > > > > > parametersWithPageId)
> > > > > > Wicket.Ajax.get({"u": theUrl, ...})
> > > > > > In IResource#respond() you can create AjaxRequestTarget with:
> > > > > >
> > > > > > Page page =
> session.getPageManager().get(parameters.get("pageId"))
> > > > > > target = webApplication.newAjaxRequestTarget(page)
> > > > > > requestCycle.scheduleRequestHandlerAfterCurrent(target);
> > > > > > page.send(page, Broadcast.BREADTH, new SomeEvent(target))
> > > > > >
> > > > > > in SomeComponent#onEvent() use someEvent.getTarget().add(this) to
> > add
> > > > the
> > > > > > component when SomeEvent is broadcasted
> > > > > >
> > > > > > Martin Grigorov
> > > > > > Wicket Training and Consulting
> > > > > > https://twitter.com/mtgrigorov
> > > > > >
> > > > > >
> > > > > > On Tue, Sep 9, 2014 at 12:40 PM, Richter, Marvin <
> > > > > > Marvin.Richter@freenetdigital.com> wrote:
> > > > > >
> > > > > > > What you are looking for is the Wicket Event mechanism.
> > > > > > >
> > > > > > > This allows you to send a broadcast to a specified Component
> > (e.g.
> > > > the
> > > > > > > current page) and a payload (e.g. your custom event type which
> > > > contains
> > > > > > > information).
> > > > > > >
> > > > > > > In the Components which should react on the event you override
> > the
> > > > > method
> > > > > > > onEvent, check if the event is of your type and if so, do with
> > the
> > > > > event
> > > > > > > payload whatever you want.
> > > > > > >
> > > > > > > Check out
> > > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
> http://www.wicket-library.com/wicket-examples/events/wicket/bookmarkable/org.apache.wicket.examples.source.SourcesPage?1&SourcesPage_class=org.apache.wicket.examples.events.DecoupledAjaxUpdatePage
> > > > > > > for a good example.
> > > > > > >
> > > > > > > Best,
> > > > > > > Marvin
> > > > > > >
> > > > > > > -----Original Message-----
> > > > > > > From: Tobias Soloschenko [mailto:
> > tobiassoloschenko@googlemail.com]
> > > > > > > Sent: Tuesday, September 09, 2014 11:31 AM
> > > > > > > To: users@wicket.apache.org
> > > > > > > Subject: Re: Global Ajax Event Handler
> > > > > > >
> > > > > > > Hi,
> > > > > > >
> > > > > > > thanks for the answer, but this is only a client side event
> hook
> > > not
> > > > > for
> > > > > > > processing a request to the Server. I added a pseudo code to
> the
> > > > > question
> > > > > > > of martin who asked me what I exactly want to do.
> > > > > > >
> > > > > > > Thanks anyway for the fast answer!
> > > > > > >
> > > > > > > kind regards,
> > > > > > >
> > > > > > > Tobias
> > > > > > >
> > > > > > > > Am 09.09.2014 um 11:06 schrieb Tom Götz <to...@decoded.de>:
> > > > > > > >
> > > > > > > > See
> > > https://cwiki.apache.org/confluence/display/WICKET/Wicket+Ajax
> > > > ,
> > > > > > > section "Global Ajax call listeners“.
> > > > > > > >
> > > > > > > > Cheers,
> > > > > > > >   -Tom
> > > > > > > >
> > > > > > > >
> > > > > > > >> On 09.09.2014, at 10:58, Tobias Soloschenko <
> > > > > > > tobiassoloschenko@googlemail.com> wrote:
> > > > > > > >>
> > > > > > > >> Hi all,
> > > > > > > >>
> > > > > > > >> is there a way to register a global ajax event handler
> within
> > > > > Wicket?
> > > > > > > For normal there is the AbstractDefaultAjaxBehavior which is
> > added
> > > > to a
> > > > > > > component. And then the CallbackScript can be obtained and used
> > > > within
> > > > > a
> > > > > > > OnDomReadyHeaderItem for example.
> > > > > > > >>
> > > > > > > >> Is there a way to do this on application level so that Im
> able
> > > to
> > > > > get
> > > > > > > the CallbackScript from the instantiated Application?
> > > > > > > >>
> > > > > > > >> kind regards
> > > > > > > >>
> > > > > > > >> Tobias
> > > > > > > >>
> > > > >
> ---------------------------------------------------------------------
> > > > > > > >> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> > > > > > > >> For additional commands, e-mail:
> users-help@wicket.apache.org
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > >
> > > > > > >
> > > ---------------------------------------------------------------------
> > > > > > > To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> > > > > > > For additional commands, e-mail: users-help@wicket.apache.org
> > > > > > >
> > > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
>

Re: Global Ajax Event Handler

Posted by Tobias Soloschenko <to...@googlemail.com>.

The method getPage() is not available at the place where I'm building the
link - I'm not within a component and I try to get the page by content of
the session. :-)

I didn't modified the Session - the pageId is stored in
org.apache.wicket.Session.pageId which is an AtomicInteger


2014-09-09 14:06 GMT+02:00 Martin Grigorov <mg...@apache.org>:

> Pass the pageId as a query string parameter.
>
> PageParameters params = new PageParameters();
> params.set("pageId", getPage().getPageId());
> theUrlToTheReference = requestCycle.urlFor(yourResRef, params);
>
> Then in the IResource (better extend AbstractResource) just read it from
> the request parameters.
>
> Storing the pageId in the session is not OK because the user may open two
> different pages in separate tabs/windows and this will break.
>
>
> Martin Grigorov
> Wicket Training and Consulting
> https://twitter.com/mtgrigorov
>
>
> On Tue, Sep 9, 2014 at 3:01 PM, Tobias Soloschenko <
> tobiassoloschenko@googlemail.com> wrote:
>
> > Thanks again for the fast answer. My code now looks this way:
> >
> >             Field declaredField =
> > WebSession.get().getClass().getSuperclass()
> >                 .getDeclaredField("pageId");
> >
> >             declaredField.setAccessible(true);
> >             AtomicInteger i = (AtomicInteger)
> > declaredField.get(WebSession.get());
> >             Page page = (Page) WebSession.get().getPageManager()
> >                 .getPage(i.get());
> >
> >             AjaxRequestTarget newAjaxRequestTarget = ((WebApplication)
> > Application.get())
> >                 .newAjaxRequestTarget(page);
> >
> >             RequestCycle.get().scheduleRequestHandlerAfterCurrent(
> >                 newAjaxRequestTarget);
> >
> > I dont know how to get the current pageId but from the Session. The page
> at
> > this place is null. :-(
> >
> >
> >
> > 2014-09-09 13:53 GMT+02:00 Martin Grigorov <mg...@apache.org>:
> >
> > > On Tue, Sep 9, 2014 at 2:05 PM, Tobias Soloschenko <
> > > tobiassoloschenko@googlemail.com> wrote:
> > >
> > > > Hi again,
> > > >
> > > > I tried out that code you mentioned here.
> > > > WebSession.get().getPageManager().getPage(int i) returns
> > IManageablePage
> > > > which is not applicable as argument for newAjaxRequestTarget.
> > > >
> > >
> > > cast it
> > > it is known that in your environment you don't use any custom
> > > IManageablePage/IRequestablePage impls (see IPageFactory)
> > >
> > >
> > > >
> > > > The second thing is how do I get the instance of a page by class with
> > the
> > > > last page id not from within a component (this would be simple
> > > getPage())?
> > > >
> > >
> > > I didn't get this
> > > Please re-phrase
> > >
> > >
> > > >
> > > > 2014-09-09 11:51 GMT+02:00 Martin Grigorov <mg...@apache.org>:
> > > >
> > > > > I've re-read the message and I think I got it.
> > > > > What you really need is a mounted resource
> > > > > (WebApplication#mountResource(someResourceReference))
> > > > > To get a url to it use: theUrl = requestCycle.urlFor(sameResRef,
> > > > > parametersWithPageId)
> > > > > Wicket.Ajax.get({"u": theUrl, ...})
> > > > > In IResource#respond() you can create AjaxRequestTarget with:
> > > > >
> > > > > Page page = session.getPageManager().get(parameters.get("pageId"))
> > > > > target = webApplication.newAjaxRequestTarget(page)
> > > > > requestCycle.scheduleRequestHandlerAfterCurrent(target);
> > > > > page.send(page, Broadcast.BREADTH, new SomeEvent(target))
> > > > >
> > > > > in SomeComponent#onEvent() use someEvent.getTarget().add(this) to
> add
> > > the
> > > > > component when SomeEvent is broadcasted
> > > > >
> > > > > Martin Grigorov
> > > > > Wicket Training and Consulting
> > > > > https://twitter.com/mtgrigorov
> > > > >
> > > > >
> > > > > On Tue, Sep 9, 2014 at 12:40 PM, Richter, Marvin <
> > > > > Marvin.Richter@freenetdigital.com> wrote:
> > > > >
> > > > > > What you are looking for is the Wicket Event mechanism.
> > > > > >
> > > > > > This allows you to send a broadcast to a specified Component
> (e.g.
> > > the
> > > > > > current page) and a payload (e.g. your custom event type which
> > > contains
> > > > > > information).
> > > > > >
> > > > > > In the Components which should react on the event you override
> the
> > > > method
> > > > > > onEvent, check if the event is of your type and if so, do with
> the
> > > > event
> > > > > > payload whatever you want.
> > > > > >
> > > > > > Check out
> > > > > >
> > > > >
> > > >
> > >
> >
> http://www.wicket-library.com/wicket-examples/events/wicket/bookmarkable/org.apache.wicket.examples.source.SourcesPage?1&SourcesPage_class=org.apache.wicket.examples.events.DecoupledAjaxUpdatePage
> > > > > > for a good example.
> > > > > >
> > > > > > Best,
> > > > > > Marvin
> > > > > >
> > > > > > -----Original Message-----
> > > > > > From: Tobias Soloschenko [mailto:
> tobiassoloschenko@googlemail.com]
> > > > > > Sent: Tuesday, September 09, 2014 11:31 AM
> > > > > > To: users@wicket.apache.org
> > > > > > Subject: Re: Global Ajax Event Handler
> > > > > >
> > > > > > Hi,
> > > > > >
> > > > > > thanks for the answer, but this is only a client side event hook
> > not
> > > > for
> > > > > > processing a request to the Server. I added a pseudo code to the
> > > > question
> > > > > > of martin who asked me what I exactly want to do.
> > > > > >
> > > > > > Thanks anyway for the fast answer!
> > > > > >
> > > > > > kind regards,
> > > > > >
> > > > > > Tobias
> > > > > >
> > > > > > > Am 09.09.2014 um 11:06 schrieb Tom Götz <to...@decoded.de>:
> > > > > > >
> > > > > > > See
> > https://cwiki.apache.org/confluence/display/WICKET/Wicket+Ajax
> > > ,
> > > > > > section "Global Ajax call listeners“.
> > > > > > >
> > > > > > > Cheers,
> > > > > > >   -Tom
> > > > > > >
> > > > > > >
> > > > > > >> On 09.09.2014, at 10:58, Tobias Soloschenko <
> > > > > > tobiassoloschenko@googlemail.com> wrote:
> > > > > > >>
> > > > > > >> Hi all,
> > > > > > >>
> > > > > > >> is there a way to register a global ajax event handler within
> > > > Wicket?
> > > > > > For normal there is the AbstractDefaultAjaxBehavior which is
> added
> > > to a
> > > > > > component. And then the CallbackScript can be obtained and used
> > > within
> > > > a
> > > > > > OnDomReadyHeaderItem for example.
> > > > > > >>
> > > > > > >> Is there a way to do this on application level so that Im able
> > to
> > > > get
> > > > > > the CallbackScript from the instantiated Application?
> > > > > > >>
> > > > > > >> kind regards
> > > > > > >>
> > > > > > >> Tobias
> > > > > > >>
> > > > ---------------------------------------------------------------------
> > > > > > >> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> > > > > > >> For additional commands, e-mail: users-help@wicket.apache.org
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > >
> > > > > >
> > ---------------------------------------------------------------------
> > > > > > To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> > > > > > For additional commands, e-mail: users-help@wicket.apache.org
> > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
>

Re: Global Ajax Event Handler

Posted by Martin Grigorov <mg...@apache.org>.

Pass the pageId as a query string parameter.

PageParameters params = new PageParameters();
params.set("pageId", getPage().getPageId());
theUrlToTheReference = requestCycle.urlFor(yourResRef, params);

Then in the IResource (better extend AbstractResource) just read it from
the request parameters.

Storing the pageId in the session is not OK because the user may open two
different pages in separate tabs/windows and this will break.


Martin Grigorov
Wicket Training and Consulting
https://twitter.com/mtgrigorov


On Tue, Sep 9, 2014 at 3:01 PM, Tobias Soloschenko <
tobiassoloschenko@googlemail.com> wrote:

> Thanks again for the fast answer. My code now looks this way:
>
>             Field declaredField =
> WebSession.get().getClass().getSuperclass()
>                 .getDeclaredField("pageId");
>
>             declaredField.setAccessible(true);
>             AtomicInteger i = (AtomicInteger)
> declaredField.get(WebSession.get());
>             Page page = (Page) WebSession.get().getPageManager()
>                 .getPage(i.get());
>
>             AjaxRequestTarget newAjaxRequestTarget = ((WebApplication)
> Application.get())
>                 .newAjaxRequestTarget(page);
>
>             RequestCycle.get().scheduleRequestHandlerAfterCurrent(
>                 newAjaxRequestTarget);
>
> I dont know how to get the current pageId but from the Session. The page at
> this place is null. :-(
>
>
>
> 2014-09-09 13:53 GMT+02:00 Martin Grigorov <mg...@apache.org>:
>
> > On Tue, Sep 9, 2014 at 2:05 PM, Tobias Soloschenko <
> > tobiassoloschenko@googlemail.com> wrote:
> >
> > > Hi again,
> > >
> > > I tried out that code you mentioned here.
> > > WebSession.get().getPageManager().getPage(int i) returns
> IManageablePage
> > > which is not applicable as argument for newAjaxRequestTarget.
> > >
> >
> > cast it
> > it is known that in your environment you don't use any custom
> > IManageablePage/IRequestablePage impls (see IPageFactory)
> >
> >
> > >
> > > The second thing is how do I get the instance of a page by class with
> the
> > > last page id not from within a component (this would be simple
> > getPage())?
> > >
> >
> > I didn't get this
> > Please re-phrase
> >
> >
> > >
> > > 2014-09-09 11:51 GMT+02:00 Martin Grigorov <mg...@apache.org>:
> > >
> > > > I've re-read the message and I think I got it.
> > > > What you really need is a mounted resource
> > > > (WebApplication#mountResource(someResourceReference))
> > > > To get a url to it use: theUrl = requestCycle.urlFor(sameResRef,
> > > > parametersWithPageId)
> > > > Wicket.Ajax.get({"u": theUrl, ...})
> > > > In IResource#respond() you can create AjaxRequestTarget with:
> > > >
> > > > Page page = session.getPageManager().get(parameters.get("pageId"))
> > > > target = webApplication.newAjaxRequestTarget(page)
> > > > requestCycle.scheduleRequestHandlerAfterCurrent(target);
> > > > page.send(page, Broadcast.BREADTH, new SomeEvent(target))
> > > >
> > > > in SomeComponent#onEvent() use someEvent.getTarget().add(this) to add
> > the
> > > > component when SomeEvent is broadcasted
> > > >
> > > > Martin Grigorov
> > > > Wicket Training and Consulting
> > > > https://twitter.com/mtgrigorov
> > > >
> > > >
> > > > On Tue, Sep 9, 2014 at 12:40 PM, Richter, Marvin <
> > > > Marvin.Richter@freenetdigital.com> wrote:
> > > >
> > > > > What you are looking for is the Wicket Event mechanism.
> > > > >
> > > > > This allows you to send a broadcast to a specified Component (e.g.
> > the
> > > > > current page) and a payload (e.g. your custom event type which
> > contains
> > > > > information).
> > > > >
> > > > > In the Components which should react on the event you override the
> > > method
> > > > > onEvent, check if the event is of your type and if so, do with the
> > > event
> > > > > payload whatever you want.
> > > > >
> > > > > Check out
> > > > >
> > > >
> > >
> >
> http://www.wicket-library.com/wicket-examples/events/wicket/bookmarkable/org.apache.wicket.examples.source.SourcesPage?1&SourcesPage_class=org.apache.wicket.examples.events.DecoupledAjaxUpdatePage
> > > > > for a good example.
> > > > >
> > > > > Best,
> > > > > Marvin
> > > > >
> > > > > -----Original Message-----
> > > > > From: Tobias Soloschenko [mailto:tobiassoloschenko@googlemail.com]
> > > > > Sent: Tuesday, September 09, 2014 11:31 AM
> > > > > To: users@wicket.apache.org
> > > > > Subject: Re: Global Ajax Event Handler
> > > > >
> > > > > Hi,
> > > > >
> > > > > thanks for the answer, but this is only a client side event hook
> not
> > > for
> > > > > processing a request to the Server. I added a pseudo code to the
> > > question
> > > > > of martin who asked me what I exactly want to do.
> > > > >
> > > > > Thanks anyway for the fast answer!
> > > > >
> > > > > kind regards,
> > > > >
> > > > > Tobias
> > > > >
> > > > > > Am 09.09.2014 um 11:06 schrieb Tom Götz <to...@decoded.de>:
> > > > > >
> > > > > > See
> https://cwiki.apache.org/confluence/display/WICKET/Wicket+Ajax
> > ,
> > > > > section "Global Ajax call listeners“.
> > > > > >
> > > > > > Cheers,
> > > > > >   -Tom
> > > > > >
> > > > > >
> > > > > >> On 09.09.2014, at 10:58, Tobias Soloschenko <
> > > > > tobiassoloschenko@googlemail.com> wrote:
> > > > > >>
> > > > > >> Hi all,
> > > > > >>
> > > > > >> is there a way to register a global ajax event handler within
> > > Wicket?
> > > > > For normal there is the AbstractDefaultAjaxBehavior which is added
> > to a
> > > > > component. And then the CallbackScript can be obtained and used
> > within
> > > a
> > > > > OnDomReadyHeaderItem for example.
> > > > > >>
> > > > > >> Is there a way to do this on application level so that Im able
> to
> > > get
> > > > > the CallbackScript from the instantiated Application?
> > > > > >>
> > > > > >> kind regards
> > > > > >>
> > > > > >> Tobias
> > > > > >>
> > > ---------------------------------------------------------------------
> > > > > >> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> > > > > >> For additional commands, e-mail: users-help@wicket.apache.org
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > >
> > > > >
> ---------------------------------------------------------------------
> > > > > To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> > > > > For additional commands, e-mail: users-help@wicket.apache.org
> > > > >
> > > > >
> > > >
> > >
> >
>

Re: Global Ajax Event Handler

Posted by Tobias Soloschenko <to...@googlemail.com>.

Thanks again for the fast answer. My code now looks this way:

            Field declaredField =
WebSession.get().getClass().getSuperclass()
                .getDeclaredField("pageId");

            declaredField.setAccessible(true);
            AtomicInteger i = (AtomicInteger)
declaredField.get(WebSession.get());
            Page page = (Page) WebSession.get().getPageManager()
                .getPage(i.get());

            AjaxRequestTarget newAjaxRequestTarget = ((WebApplication)
Application.get())
                .newAjaxRequestTarget(page);

            RequestCycle.get().scheduleRequestHandlerAfterCurrent(
                newAjaxRequestTarget);

I dont know how to get the current pageId but from the Session. The page at
this place is null. :-(



2014-09-09 13:53 GMT+02:00 Martin Grigorov <mg...@apache.org>:

> On Tue, Sep 9, 2014 at 2:05 PM, Tobias Soloschenko <
> tobiassoloschenko@googlemail.com> wrote:
>
> > Hi again,
> >
> > I tried out that code you mentioned here.
> > WebSession.get().getPageManager().getPage(int i) returns IManageablePage
> > which is not applicable as argument for newAjaxRequestTarget.
> >
>
> cast it
> it is known that in your environment you don't use any custom
> IManageablePage/IRequestablePage impls (see IPageFactory)
>
>
> >
> > The second thing is how do I get the instance of a page by class with the
> > last page id not from within a component (this would be simple
> getPage())?
> >
>
> I didn't get this
> Please re-phrase
>
>
> >
> > 2014-09-09 11:51 GMT+02:00 Martin Grigorov <mg...@apache.org>:
> >
> > > I've re-read the message and I think I got it.
> > > What you really need is a mounted resource
> > > (WebApplication#mountResource(someResourceReference))
> > > To get a url to it use: theUrl = requestCycle.urlFor(sameResRef,
> > > parametersWithPageId)
> > > Wicket.Ajax.get({"u": theUrl, ...})
> > > In IResource#respond() you can create AjaxRequestTarget with:
> > >
> > > Page page = session.getPageManager().get(parameters.get("pageId"))
> > > target = webApplication.newAjaxRequestTarget(page)
> > > requestCycle.scheduleRequestHandlerAfterCurrent(target);
> > > page.send(page, Broadcast.BREADTH, new SomeEvent(target))
> > >
> > > in SomeComponent#onEvent() use someEvent.getTarget().add(this) to add
> the
> > > component when SomeEvent is broadcasted
> > >
> > > Martin Grigorov
> > > Wicket Training and Consulting
> > > https://twitter.com/mtgrigorov
> > >
> > >
> > > On Tue, Sep 9, 2014 at 12:40 PM, Richter, Marvin <
> > > Marvin.Richter@freenetdigital.com> wrote:
> > >
> > > > What you are looking for is the Wicket Event mechanism.
> > > >
> > > > This allows you to send a broadcast to a specified Component (e.g.
> the
> > > > current page) and a payload (e.g. your custom event type which
> contains
> > > > information).
> > > >
> > > > In the Components which should react on the event you override the
> > method
> > > > onEvent, check if the event is of your type and if so, do with the
> > event
> > > > payload whatever you want.
> > > >
> > > > Check out
> > > >
> > >
> >
> http://www.wicket-library.com/wicket-examples/events/wicket/bookmarkable/org.apache.wicket.examples.source.SourcesPage?1&SourcesPage_class=org.apache.wicket.examples.events.DecoupledAjaxUpdatePage
> > > > for a good example.
> > > >
> > > > Best,
> > > > Marvin
> > > >
> > > > -----Original Message-----
> > > > From: Tobias Soloschenko [mailto:tobiassoloschenko@googlemail.com]
> > > > Sent: Tuesday, September 09, 2014 11:31 AM
> > > > To: users@wicket.apache.org
> > > > Subject: Re: Global Ajax Event Handler
> > > >
> > > > Hi,
> > > >
> > > > thanks for the answer, but this is only a client side event hook not
> > for
> > > > processing a request to the Server. I added a pseudo code to the
> > question
> > > > of martin who asked me what I exactly want to do.
> > > >
> > > > Thanks anyway for the fast answer!
> > > >
> > > > kind regards,
> > > >
> > > > Tobias
> > > >
> > > > > Am 09.09.2014 um 11:06 schrieb Tom Götz <to...@decoded.de>:
> > > > >
> > > > > See https://cwiki.apache.org/confluence/display/WICKET/Wicket+Ajax
> ,
> > > > section "Global Ajax call listeners“.
> > > > >
> > > > > Cheers,
> > > > >   -Tom
> > > > >
> > > > >
> > > > >> On 09.09.2014, at 10:58, Tobias Soloschenko <
> > > > tobiassoloschenko@googlemail.com> wrote:
> > > > >>
> > > > >> Hi all,
> > > > >>
> > > > >> is there a way to register a global ajax event handler within
> > Wicket?
> > > > For normal there is the AbstractDefaultAjaxBehavior which is added
> to a
> > > > component. And then the CallbackScript can be obtained and used
> within
> > a
> > > > OnDomReadyHeaderItem for example.
> > > > >>
> > > > >> Is there a way to do this on application level so that Im able to
> > get
> > > > the CallbackScript from the instantiated Application?
> > > > >>
> > > > >> kind regards
> > > > >>
> > > > >> Tobias
> > > > >>
> > ---------------------------------------------------------------------
> > > > >> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> > > > >> For additional commands, e-mail: users-help@wicket.apache.org
> > > > >
> > > > >
> > > > >
> > > > >
> > > >
> > > > ---------------------------------------------------------------------
> > > > To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> > > > For additional commands, e-mail: users-help@wicket.apache.org
> > > >
> > > >
> > >
> >
>

Re: Global Ajax Event Handler

Posted by Martin Grigorov <mg...@apache.org>.

On Tue, Sep 9, 2014 at 2:05 PM, Tobias Soloschenko <
tobiassoloschenko@googlemail.com> wrote:

> Hi again,
>
> I tried out that code you mentioned here.
> WebSession.get().getPageManager().getPage(int i) returns IManageablePage
> which is not applicable as argument for newAjaxRequestTarget.
>

cast it
it is known that in your environment you don't use any custom
IManageablePage/IRequestablePage impls (see IPageFactory)


>
> The second thing is how do I get the instance of a page by class with the
> last page id not from within a component (this would be simple getPage())?
>

I didn't get this
Please re-phrase


>
> 2014-09-09 11:51 GMT+02:00 Martin Grigorov <mg...@apache.org>:
>
> > I've re-read the message and I think I got it.
> > What you really need is a mounted resource
> > (WebApplication#mountResource(someResourceReference))
> > To get a url to it use: theUrl = requestCycle.urlFor(sameResRef,
> > parametersWithPageId)
> > Wicket.Ajax.get({"u": theUrl, ...})
> > In IResource#respond() you can create AjaxRequestTarget with:
> >
> > Page page = session.getPageManager().get(parameters.get("pageId"))
> > target = webApplication.newAjaxRequestTarget(page)
> > requestCycle.scheduleRequestHandlerAfterCurrent(target);
> > page.send(page, Broadcast.BREADTH, new SomeEvent(target))
> >
> > in SomeComponent#onEvent() use someEvent.getTarget().add(this) to add the
> > component when SomeEvent is broadcasted
> >
> > Martin Grigorov
> > Wicket Training and Consulting
> > https://twitter.com/mtgrigorov
> >
> >
> > On Tue, Sep 9, 2014 at 12:40 PM, Richter, Marvin <
> > Marvin.Richter@freenetdigital.com> wrote:
> >
> > > What you are looking for is the Wicket Event mechanism.
> > >
> > > This allows you to send a broadcast to a specified Component (e.g. the
> > > current page) and a payload (e.g. your custom event type which contains
> > > information).
> > >
> > > In the Components which should react on the event you override the
> method
> > > onEvent, check if the event is of your type and if so, do with the
> event
> > > payload whatever you want.
> > >
> > > Check out
> > >
> >
> http://www.wicket-library.com/wicket-examples/events/wicket/bookmarkable/org.apache.wicket.examples.source.SourcesPage?1&SourcesPage_class=org.apache.wicket.examples.events.DecoupledAjaxUpdatePage
> > > for a good example.
> > >
> > > Best,
> > > Marvin
> > >
> > > -----Original Message-----
> > > From: Tobias Soloschenko [mailto:tobiassoloschenko@googlemail.com]
> > > Sent: Tuesday, September 09, 2014 11:31 AM
> > > To: users@wicket.apache.org
> > > Subject: Re: Global Ajax Event Handler
> > >
> > > Hi,
> > >
> > > thanks for the answer, but this is only a client side event hook not
> for
> > > processing a request to the Server. I added a pseudo code to the
> question
> > > of martin who asked me what I exactly want to do.
> > >
> > > Thanks anyway for the fast answer!
> > >
> > > kind regards,
> > >
> > > Tobias
> > >
> > > > Am 09.09.2014 um 11:06 schrieb Tom Götz <to...@decoded.de>:
> > > >
> > > > See https://cwiki.apache.org/confluence/display/WICKET/Wicket+Ajax,
> > > section "Global Ajax call listeners“.
> > > >
> > > > Cheers,
> > > >   -Tom
> > > >
> > > >
> > > >> On 09.09.2014, at 10:58, Tobias Soloschenko <
> > > tobiassoloschenko@googlemail.com> wrote:
> > > >>
> > > >> Hi all,
> > > >>
> > > >> is there a way to register a global ajax event handler within
> Wicket?
> > > For normal there is the AbstractDefaultAjaxBehavior which is added to a
> > > component. And then the CallbackScript can be obtained and used within
> a
> > > OnDomReadyHeaderItem for example.
> > > >>
> > > >> Is there a way to do this on application level so that Im able to
> get
> > > the CallbackScript from the instantiated Application?
> > > >>
> > > >> kind regards
> > > >>
> > > >> Tobias
> > > >>
> ---------------------------------------------------------------------
> > > >> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> > > >> For additional commands, e-mail: users-help@wicket.apache.org
> > > >
> > > >
> > > >
> > > >
> > >
> > > ---------------------------------------------------------------------
> > > To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> > > For additional commands, e-mail: users-help@wicket.apache.org
> > >
> > >
> >
>

Re: Global Ajax Event Handler

Posted by Tobias Soloschenko <to...@googlemail.com>.

Hi again,

I tried out that code you mentioned here.
WebSession.get().getPageManager().getPage(int i) returns IManageablePage
which is not applicable as argument for newAjaxRequestTarget.

The second thing is how do I get the instance of a page by class with the
last page id not from within a component (this would be simple getPage())?

2014-09-09 11:51 GMT+02:00 Martin Grigorov <mg...@apache.org>:

> I've re-read the message and I think I got it.
> What you really need is a mounted resource
> (WebApplication#mountResource(someResourceReference))
> To get a url to it use: theUrl = requestCycle.urlFor(sameResRef,
> parametersWithPageId)
> Wicket.Ajax.get({"u": theUrl, ...})
> In IResource#respond() you can create AjaxRequestTarget with:
>
> Page page = session.getPageManager().get(parameters.get("pageId"))
> target = webApplication.newAjaxRequestTarget(page)
> requestCycle.scheduleRequestHandlerAfterCurrent(target);
> page.send(page, Broadcast.BREADTH, new SomeEvent(target))
>
> in SomeComponent#onEvent() use someEvent.getTarget().add(this) to add the
> component when SomeEvent is broadcasted
>
> Martin Grigorov
> Wicket Training and Consulting
> https://twitter.com/mtgrigorov
>
>
> On Tue, Sep 9, 2014 at 12:40 PM, Richter, Marvin <
> Marvin.Richter@freenetdigital.com> wrote:
>
> > What you are looking for is the Wicket Event mechanism.
> >
> > This allows you to send a broadcast to a specified Component (e.g. the
> > current page) and a payload (e.g. your custom event type which contains
> > information).
> >
> > In the Components which should react on the event you override the method
> > onEvent, check if the event is of your type and if so, do with the event
> > payload whatever you want.
> >
> > Check out
> >
> http://www.wicket-library.com/wicket-examples/events/wicket/bookmarkable/org.apache.wicket.examples.source.SourcesPage?1&SourcesPage_class=org.apache.wicket.examples.events.DecoupledAjaxUpdatePage
> > for a good example.
> >
> > Best,
> > Marvin
> >
> > -----Original Message-----
> > From: Tobias Soloschenko [mailto:tobiassoloschenko@googlemail.com]
> > Sent: Tuesday, September 09, 2014 11:31 AM
> > To: users@wicket.apache.org
> > Subject: Re: Global Ajax Event Handler
> >
> > Hi,
> >
> > thanks for the answer, but this is only a client side event hook not for
> > processing a request to the Server. I added a pseudo code to the question
> > of martin who asked me what I exactly want to do.
> >
> > Thanks anyway for the fast answer!
> >
> > kind regards,
> >
> > Tobias
> >
> > > Am 09.09.2014 um 11:06 schrieb Tom Götz <to...@decoded.de>:
> > >
> > > See https://cwiki.apache.org/confluence/display/WICKET/Wicket+Ajax,
> > section "Global Ajax call listeners“.
> > >
> > > Cheers,
> > >   -Tom
> > >
> > >
> > >> On 09.09.2014, at 10:58, Tobias Soloschenko <
> > tobiassoloschenko@googlemail.com> wrote:
> > >>
> > >> Hi all,
> > >>
> > >> is there a way to register a global ajax event handler within Wicket?
> > For normal there is the AbstractDefaultAjaxBehavior which is added to a
> > component. And then the CallbackScript can be obtained and used within a
> > OnDomReadyHeaderItem for example.
> > >>
> > >> Is there a way to do this on application level so that Im able to get
> > the CallbackScript from the instantiated Application?
> > >>
> > >> kind regards
> > >>
> > >> Tobias
> > >> ---------------------------------------------------------------------
> > >> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> > >> For additional commands, e-mail: users-help@wicket.apache.org
> > >
> > >
> > >
> > >
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> > For additional commands, e-mail: users-help@wicket.apache.org
> >
> >
>

Re: Global Ajax Event Handler

Posted by Martin Grigorov <mg...@apache.org>.

I've re-read the message and I think I got it.
What you really need is a mounted resource
(WebApplication#mountResource(someResourceReference))
To get a url to it use: theUrl = requestCycle.urlFor(sameResRef,
parametersWithPageId)
Wicket.Ajax.get({"u": theUrl, ...})
In IResource#respond() you can create AjaxRequestTarget with:

Page page = session.getPageManager().get(parameters.get("pageId"))
target = webApplication.newAjaxRequestTarget(page)
requestCycle.scheduleRequestHandlerAfterCurrent(target);
page.send(page, Broadcast.BREADTH, new SomeEvent(target))

in SomeComponent#onEvent() use someEvent.getTarget().add(this) to add the
component when SomeEvent is broadcasted

Martin Grigorov
Wicket Training and Consulting
https://twitter.com/mtgrigorov


On Tue, Sep 9, 2014 at 12:40 PM, Richter, Marvin <
Marvin.Richter@freenetdigital.com> wrote:

> What you are looking for is the Wicket Event mechanism.
>
> This allows you to send a broadcast to a specified Component (e.g. the
> current page) and a payload (e.g. your custom event type which contains
> information).
>
> In the Components which should react on the event you override the method
> onEvent, check if the event is of your type and if so, do with the event
> payload whatever you want.
>
> Check out
> http://www.wicket-library.com/wicket-examples/events/wicket/bookmarkable/org.apache.wicket.examples.source.SourcesPage?1&SourcesPage_class=org.apache.wicket.examples.events.DecoupledAjaxUpdatePage
> for a good example.
>
> Best,
> Marvin
>
> -----Original Message-----
> From: Tobias Soloschenko [mailto:tobiassoloschenko@googlemail.com]
> Sent: Tuesday, September 09, 2014 11:31 AM
> To: users@wicket.apache.org
> Subject: Re: Global Ajax Event Handler
>
> Hi,
>
> thanks for the answer, but this is only a client side event hook not for
> processing a request to the Server. I added a pseudo code to the question
> of martin who asked me what I exactly want to do.
>
> Thanks anyway for the fast answer!
>
> kind regards,
>
> Tobias
>
> > Am 09.09.2014 um 11:06 schrieb Tom Götz <to...@decoded.de>:
> >
> > See https://cwiki.apache.org/confluence/display/WICKET/Wicket+Ajax,
> section "Global Ajax call listeners“.
> >
> > Cheers,
> >   -Tom
> >
> >
> >> On 09.09.2014, at 10:58, Tobias Soloschenko <
> tobiassoloschenko@googlemail.com> wrote:
> >>
> >> Hi all,
> >>
> >> is there a way to register a global ajax event handler within Wicket?
> For normal there is the AbstractDefaultAjaxBehavior which is added to a
> component. And then the CallbackScript can be obtained and used within a
> OnDomReadyHeaderItem for example.
> >>
> >> Is there a way to do this on application level so that Im able to get
> the CallbackScript from the instantiated Application?
> >>
> >> kind regards
> >>
> >> Tobias
> >> ---------------------------------------------------------------------
> >> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> >> For additional commands, e-mail: users-help@wicket.apache.org
> >
> >
> >
> >
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> For additional commands, e-mail: users-help@wicket.apache.org
>
>

RE: Global Ajax Event Handler

Posted by "Richter, Marvin" <Ma...@freenetdigital.com>.

What you are looking for is the Wicket Event mechanism.

This allows you to send a broadcast to a specified Component (e.g. the current page) and a payload (e.g. your custom event type which contains information).

In the Components which should react on the event you override the method onEvent, check if the event is of your type and if so, do with the event payload whatever you want.

Check out http://www.wicket-library.com/wicket-examples/events/wicket/bookmarkable/org.apache.wicket.examples.source.SourcesPage?1&SourcesPage_class=org.apache.wicket.examples.events.DecoupledAjaxUpdatePage for a good example.

Best,
Marvin

-----Original Message-----
From: Tobias Soloschenko [mailto:tobiassoloschenko@googlemail.com] 
Sent: Tuesday, September 09, 2014 11:31 AM
To: users@wicket.apache.org
Subject: Re: Global Ajax Event Handler

Hi,

thanks for the answer, but this is only a client side event hook not for processing a request to the Server. I added a pseudo code to the question of martin who asked me what I exactly want to do.

Thanks anyway for the fast answer!

kind regards,

Tobias 

> Am 09.09.2014 um 11:06 schrieb Tom Götz <to...@decoded.de>:
> 
> See https://cwiki.apache.org/confluence/display/WICKET/Wicket+Ajax, section "Global Ajax call listeners“.
> 
> Cheers,
>   -Tom
> 
> 
>> On 09.09.2014, at 10:58, Tobias Soloschenko <to...@googlemail.com> wrote:
>> 
>> Hi all, 
>> 
>> is there a way to register a global ajax event handler within Wicket? For normal there is the AbstractDefaultAjaxBehavior which is added to a component. And then the CallbackScript can be obtained and used within a OnDomReadyHeaderItem for example.
>> 
>> Is there a way to do this on application level so that Im able to get the CallbackScript from the instantiated Application? 
>> 
>> kind regards 
>> 
>> Tobias
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
>> For additional commands, e-mail: users-help@wicket.apache.org
> 
> 
> 
> 

---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
For additional commands, e-mail: users-help@wicket.apache.org

Re: Global Ajax Event Handler

Posted by Tobias Soloschenko <to...@googlemail.com>.

Hi,

thanks for the answer, but this is only a client side event hook not for processing a request to the Server. I added a pseudo code to the question of martin who asked me what I exactly want to do.

Thanks anyway for the fast answer!

kind regards,

Tobias 

> Am 09.09.2014 um 11:06 schrieb Tom Götz <to...@decoded.de>:
> 
> See https://cwiki.apache.org/confluence/display/WICKET/Wicket+Ajax, section "Global Ajax call listeners“.
> 
> Cheers,
>   -Tom
> 
> 
>> On 09.09.2014, at 10:58, Tobias Soloschenko <to...@googlemail.com> wrote:
>> 
>> Hi all, 
>> 
>> is there a way to register a global ajax event handler within Wicket? For normal there is the AbstractDefaultAjaxBehavior which is added to a component. And then the CallbackScript can be obtained and used within a OnDomReadyHeaderItem for example.
>> 
>> Is there a way to do this on application level so that Im able to get the CallbackScript from the instantiated Application? 
>> 
>> kind regards 
>> 
>> Tobias
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
>> For additional commands, e-mail: users-help@wicket.apache.org
> 
> 
> 
> 

---------------------------------------------------------------------
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Re: Global Ajax Event Handler

Posted by Tom Götz <to...@decoded.de>.

See https://cwiki.apache.org/confluence/display/WICKET/Wicket+Ajax, section "Global Ajax call listeners“.

Cheers,
   -Tom


On 09.09.2014, at 10:58, Tobias Soloschenko <to...@googlemail.com> wrote:

> Hi all, 
> 
> is there a way to register a global ajax event handler within Wicket? For normal there is the AbstractDefaultAjaxBehavior which is added to a component. And then the CallbackScript can be obtained and used within a OnDomReadyHeaderItem for example.
> 
> Is there a way to do this on application level so that Im able to get the CallbackScript from the instantiated Application? 
> 
> kind regards 
> 
> Tobias
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> For additional commands, e-mail: users-help@wicket.apache.org
>