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

[André Bargull]

Hmm, it's not really only preventing subviews from constructing and 
initiating, i.e. if you ask for the "isinited"-attribute, you'll see 
that the whole view don't get initiated if it has got a subview(s).

Example:
<view id="foo" initstage="defer" >
</view>

<view id="bar" initstage="defer" >
  <view />
</view>

foo.isinited == true
bar.isinited == false

> 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 2/18/2008 5:12 PM, André Bargull (JIRA) 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.
>>>       
>>
>>