[Laszlo-dev] [JIRA] Commented: (LPP-3262) Handlers doesn't work with nested views and initstage="defer"

[P T Withington]

Unfortunately, this is working "as documented", although it is a  
source of endless confusion that init stage only applies to subviews!

I think the init stage API is terrible, but don't think we can revise  
it at this point.

On Feb 18, 2008, at 11:12, André Bargull (JIRA)  
<jira at laszlosystems.com> wrote:

>
>    [ http://www.openlaszlo.org/jira/browse/LPP-3262?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=41575#action_41575 
>  ]
>
> André Bargull commented on LPP-3262:
> ------------------------------------
>
> haha, funny thing!
>
> suppose we've got this smaller testcase:
> <canvas debug="true" >
>  <button id="btnClick" text="Click Me!" />
>
>  <view id="foo" initstage="defer" >
>    <handler name="onclick" reference="btnClick" >
>      Debug.write( "theView - onclick" );
>    </handler>
>  </view>
>
>  <view id="bar" initstage="defer" >
>    <view name="someview" />
>    <handler name="onclick" reference="btnClick" >
>      Debug.write( "theView - onclick" );
>    </handler>
>  </view>
> </canvas>
>
> What happens?
>
> "foo" hasn't got any subviews:
> LzNode() -> __LZinstantiationDone() -> __LZcallInit() ->  
> __LZresolveReferences() //handlers get attached!
>
> "bar" has got a subview:
> LzNode() -> createChildren() //stops here
> later: completeInstantiation() -> __LZinstantiationDone() ->  
> __LZcallInit() -> __LZresolveReferences() //finally we get our  
> handlers!
>
>
> I guess I'd change the semantics of "defer"-initstage:
> if you set initstage to "defer" on a view without subviews, the view  
> shouldn't get initiated until completeInstantiation was called, like  
> for a view _with_ subviews.
>
>> Handlers doesn't work with nested views and initstage="defer"
>> -------------------------------------------------------------
>>
>>                Key: LPP-3262
>>                URL: http://www.openlaszlo.org/jira/browse/LPP-3262
>>            Project: OpenLaszlo
>>         Issue Type: Bug
>>         Components: Laszlo Foundation Classes (LFC)
>>   Affects Versions: 3.3.3
>>           Reporter: André Bargull
>>           Assignee: P T Withington
>>           Priority: P1
>>            Fix For: DingDong
>>
>>        Attachments: handler.lzx
>>
>>
>> Handlers doesn't work if they are placed in nested views and their  
>> parent-views have initstage="defer". The same goes for  
>> defaultplacement.
>> So it is very frustrating for users, if they can define a handler  
>> on a normal view with initstage="defer", but not i.e. on a list,  
>> because a list uses defaultplacement.
>> TestCase is attached.
>
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