[jira] [Updated] (FLEX-34344) DropDownList keeps acting on keyDown and other events after being removed from stage

["Mihai Chira (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLEX-34344?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mihai Chira updated FLEX-34344:
-------------------------------

    Attachment: _DropDownListListeningTooMuch.fxp

> DropDownList keeps acting on keyDown and other events after being removed from stage
> ------------------------------------------------------------------------------------
>
>                 Key: FLEX-34344
>                 URL: https://issues.apache.org/jira/browse/FLEX-34344
>             Project: Apache Flex
>          Issue Type: Bug
>          Components: Spark: DropDownList
>    Affects Versions: Apache Flex 4.12.0
>            Reporter: Mihai Chira
>              Labels: easytest
>             Fix For: Apache Flex 4.13.0
>
>         Attachments: _DropDownListListeningTooMuch.fxp
>
>
> *Steps to reproduce*:
> 1. Import and run the attached project.
> 2. Click on the dropdown and select an item.
> 3. Right click on the dropdown, which removes it from stage.
> 4. Press UP/DOWN.
> *Actual behaviour*: the dropdown's _proposedSelectedIndex keeps changing, showing the dropdown is still acting on keyboard events.
> *Desired behaviour*: once it's off stage, the dropdown should not react to keyboard - or any other - events.
> *Notes*:
> -the same behaviour can be made visible by placing a breakpoint in DropDownListBase.keyDownHandler after step 3.
> -I noticed that UIComponent adds event listeners for KEY_DOWN, KEY_UP, FOCUS_IN and FOCUS_OUT, but never removes them. Is the expectation that components themselves will remove these listeners when they're off stage, or is it an omission?



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