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https://issues.apache.org/jira/browse/FLEX-12784?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mark Kessler closed FLEX-12784.
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> during drag, mouseOut only fires if mouse is moving quickly
> -----------------------------------------------------------
>
> Key: FLEX-12784
> URL: https://issues.apache.org/jira/browse/FLEX-12784
> Project: Apache Flex
> Issue Type: Bug
> Components: mx: DataGrid
> Affects Versions: Adobe Flex SDK 3.0 (Release)
> Environment: Affected OS(s): All OS Platforms
> Language Found: English
> Reporter: Adobe JIRA
> Assignee: Mark Kessler
>
> Steps to reproduce:
> In the attached code,
> 1. Run in debug mode
> 2. Click and hold a row from the data grid
> 3. Slowly move the mouse (a slow drag) out of the data grid
> 4. Notice that no trace statements are output - the "mouseOut" handler does
> not fire
> 5. Move the mouse quickly (a quick drag) out of the data grid. Between rows
> on the datagrid also works, as the datagrid broadcasts "mouseOut" events for
> each row and column as well.
> 6. Notice that there are now lots of trace statements. For some reason,
> during a drag the "mouseOut" event is only broadcast if the mouse moves
> quickly.
>
> Actual Results:
> The "mouseOut" event is not broadcast correctly during a drag if the mouse
> is moving slowly.
>
> Expected Results:
> The "mouseOut" event is broadcast whenever the mouse leaves the area bounded
> by this control, regardless of the speed of mouse movement.
>
> Workaround (if any):
> Listen for all "mouseMove" events. From mouse's position, determine whether
> it has exited the object in question's boundaries.
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