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From "Alex Harui (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLEX-34355) ActiveWindowManager, findHighestModalForm issue
Date Thu, 20 Nov 2014 18:29:35 GMT

    [ https://issues.apache.org/jira/browse/FLEX-34355?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14219727#comment-14219727
] 

Alex Harui commented on FLEX-34355:
-----------------------------------

I considered adding some check to PopUpManager to catch when folks add a popup twice, but
decided not to make everyone pay for that check.  Not that it would make a noticeable performance
hit, but if we keep adding fault tolerance, it adds up in the end.  Folks with complex popup
needs could create a proxy PopUpManager that performs that check before redirecting to the
Flex PopUpManager.

If you really want such a thing in the SDK, provide a patch or comment here and specify whether
the check should just do nothing or throw an error or something else.

-Alex

> ActiveWindowManager, findHighestModalForm issue
> -----------------------------------------------
>
>                 Key: FLEX-34355
>                 URL: https://issues.apache.org/jira/browse/FLEX-34355
>             Project: Apache Flex
>          Issue Type: Bug
>          Components: .Unspecified - Framework, Runtime Exceptions
>    Affects Versions: Apache Flex 4.12.0, Apache Flex 4.13.0
>            Reporter: Alexander Mazuruk
>            Assignee: Alex Harui
>
> We have a lot of modal messageBoxes popped out on the stage, and we are trying to close
them one by one, and for the second closed dialog we are facing this issue. Modal form was
removed from the stage faster than mouseClickhandler from SystemManager was called actually.
> IChildList interface has .contains() method, Why in the world you are not using it?
> This code fragment must be fixed:
> 	private function findHighestModalForm():int
> 	{
> /////////////////////////////////////////
> 				var index:int = rc.getChildIndex(f as DisplayObject);
> 				if (index > 0)
> 				{
> 				}
> /////////////////////////////////////////
> 	}
> As follows:
> 	private function findHighestModalForm():int
> 	{
> /////////////////////////////////////////
> 	var index:int = rc.contains(f as DisplayObject) ? rc.getChildIndex(f as DisplayObject)
: -1;
> 				if (index > 0)
> 				{
> 				}
> /////////////////////////////////////////
> 	}
> Otherwise we have this error pops out when we don't have a child in the IChildList and
code is trying to fetch it out, but it's not there already.
> ArgumentError: Error #2025: The supplied DisplayObject must be a child of the caller.
> 	at flash.display::DisplayObjectContainer/getChildIndex()
> 	at mx.managers::SystemManager/http://www.adobe.com/2006/flex/mx/internal::rawChildren_getChildIndex()[/Users/justinmclean/Documents/ApacheFlex4.12.0/frameworks/projects/framework/src/mx/managers/SystemManager.as:2195]
> 	at mx.managers::SystemRawChildrenList/getChildIndex()[/Users/justinmclean/Documents/ApacheFlex4.12.0/frameworks/projects/framework/src/mx/managers/SystemRawChildrenList.as:189]
> 	at mx.managers.systemClasses::ActiveWindowManager/findHighestModalForm()[/Users/justinmclean/Documents/ApacheFlex4.12.0/frameworks/projects/framework/src/mx/managers/systemClasses/ActiveWindowManager.as:441]
> 	at mx.managers.systemClasses::ActiveWindowManager/mouseDownHandler()[/Users/justinmclean/Documents/ApacheFlex4.12.0/frameworks/projects/framework/src/mx/managers/systemClasses/ActiveWindowManager.as:469]
> 	at flash.events::EventDispatcher/dispatchEventFunction()
> 	at flash.events::EventDispatcher/dispatchEvent()
> 	at mx.core::UIComponent/dispatchEvent()[/Users/justinmclean/Documents/ApacheFlex4.12.0/frameworks/projects/framework/src/mx/core/UIComponent.as:13682]
> 	at mx.managers::SystemManager/mouseEventHandler()[/Users/justinmclean/Documents/ApacheFlex4.12.0/frameworks/projects/framework/src/mx/managers/SystemManager.as:2926]



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