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From "David Brunette" <David.Brune...@chordiant.com>
Subject RE: Maintaining selected tab
Date Sat, 27 Jan 2007 19:50:43 GMT

     Hey Adam... thanks for the reply.

     It turns out that this context-param was already set in my app...
but it still may be the key to what my problem is.  I had never heard
about the ChangeManager before, but reading as much as I can find about
it, it seems like this is used to automatically apply some state during
subsequent creation of a particular view.  But that's exactly what I
DON'T want to happen.  When going from View_A -> View_B, I'd like the
state of the tab component (i.e. which tab is selected) to be the same
on View_B as it was on View_A.  My new understanding of the
ChangeManager is that it only helps with keeping the state of a
component when going back to View_A... and the ChangeManager will
maintain a completely separate state for the component on View_B all on
its own.  So would it be a mistake to try to use the ChangeManage if I
want to share the component state across different views?

     I have gotten this to work now by turning the ChangeManager OFF and
implementing a DisclosureListener on each of my showDetailItem
components to maintain the ID of the selected tab (for anybody
interested, the code is pasted below).  But I would like to know if this
is the best solution, or if there is a way to work with the
ChangeManager to maintain a component's state across different views.

     Thanks...

Dave

panelTabbed component:

<tr:panelTabbed position="above">

  <tr:showDetailItem id="theFirstTab"
     disclosed="#{keepTabStateBean.disclosedSectionId == 'theFirstTab'}"
     disclosureListener="#{keepTabStateBean.updateStickyTab}"
     text="First" immediate="true">
      <tr:outputText value="First Content" />
  </tr:showDetailItem>

  <tr:showDetailItem id="theSecondTab"
    disclosed="#{keepTabStateBean.disclosedSectionId == 'theSecondTab'}"
    disclosureListener="#{keepTabStateBean.updateStickyTab}"
    text="Second" immediate="true">
      <tr:outputText value="Second Content" />
  </tr:showDetailItem>

  <tr:showDetailItem id="theThirdTab"
     disclosed="#{keepTabStateBean.disclosedSectionId == 'theThirdTab'}"
     disclosureListener="#{keepTabStateBean.updateStickyTab}"
     text="Third" immediate="true">
       <tr:outputText value="Third Content" />
  </tr:showDetailItem>

</tr:panelTabbed>

KeepTabStateBean.java:

public class KeepTabStateBean {
	
	private String disclosedSectionId;
	
	public final String getDisclosedSectionId() {
		return disclosedSectionId;
	}

	public final void setDisclosedSectionId(String
disclosedSectionId) {
		this.disclosedSectionId = disclosedSectionId;
	}

	public void updateStickyTab( DisclosureEvent event ) {
		if( ( (CoreShowDetailItem)event.getComponent()
).isDisclosed() )
			setDisclosedSectionId( (
(CoreShowDetailItem)event.getComponent() ).getId() );
		
	}

}

-----Original Message-----
From: Adam Winer [mailto:awiner@gmail.com] 
Sent: Friday, January 26, 2007 9:38 PM
To: adffaces-user@incubator.apache.org
Subject: Re: Maintaining selected tab

You might try enabling the "change manager" in web.xml:

  <context-param>
 
<param-name>org.apache.myfaces.trinidad.CHANGE_PERSISTENCE</param-name>
    <param-value>session</param-value>
  </context-param>

... which will do some automatic persistence of UI changes for you.

-- Adam


On 1/25/07, David Brunette <David.Brunette@chordiant.com> wrote:
>
>      A little more info on this...
>
>      When I select a tab and navigate to the next page, the
panelTabbed
> is defaulted back to showing the first tab.  But if I navigate back to
> the first page again, then the panelTabbed is showing the tab that I
> selected before.  It seems as though the state is being kept, but only
> page-by-page instead of for ALL pages that include that component and
> bind it to the same CorePabelTabbed.
>
>      Any ideas of what I'm missing here??  Thanks...
>
> Dave
>
> -----Original Message-----
> From: David Brunette [mailto:David.Brunette@chordiant.com]
> Sent: Wednesday, January 24, 2007 4:13 PM
> To: adffaces-user@incubator.apache.org
> Subject: Maintaining selected tab
>
>
>
>      Hi.
>
>
>
>      I have two simple pages, both of which have a simple
> <tr:panelTabbed /> component showing the exactly same tabs and
content.
> On the first page, I select a different tab and then click a button
that
> will navigate me to the second page.  When the second page loads, I
> would like to have the selected tab be the same as the one that was
> selected when I submitted from the first page.
>
>
>
>      I tried to do this by binding the <tr:panelTabbed /> components
on
> each page to the same property in my session-scoped bean, but when the
> second page loads, I am always defaulted to the first tab again.  Does
> anybody know how I can keep track of which tab is selected for my
> panelTabbed component across different pages?  Thanks...
>
>
>
> Dave
>
>
>
> <tr:panelTabbed binding="#{keepTabStateBean.tabs}" position="above">
>
>       <tr:showDetailItem text="First" immediate="true">
>
>             <tr:outputText value="First Content" />
>
>       </tr:showDetailItem>
>
>       <tr:showDetailItem text="Second" immediate="true">
>
>             <tr:outputText value="Second Content" />
>
>       </tr:showDetailItem>
>
>       <tr:showDetailItem text="Third" immediate="true">
>
>             <tr:outputText value="Third Content" />
>
>       </tr:showDetailItem>
>
> </tr:panelTabbed>
>
>
>
> public class KeepTabStateBean {
>
>
>
>       private CorePanelTabbed tabs;
>
>
>
>       public final CorePanelTabbed getTabs() {
>
>             return tabs;
>
>       }
>
>
>
>       public final void setTabs(CorePanelTabbed tabs) {
>
>             this.tabs = tabs;
>
>       }
>
>
>
> }
>
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