[FLEX-26241] mouse released outside of window fires events twice

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: Adobe Flex SDK 4.1 (Release)
• Component/s: Events
• Environment: Affected OS(s): Windows; Affected OS(s): Windows 7; Language Found: English
• Assignee: Unassigned
• Reporter: Adobe JIRA
• Created: 14/Dec/10 01:18
• Updated: 14/Dec/10 01:18

Description

Steps to reproduce:
1.
In a new window register an event handler with the stage to capture mouse up events outside the window.

stage.addEventListener( MouseEvent.MOUSE_UP, mouseUpHandler );
2.
Case 1) Press and release mouse within window.
Case 2) Press and release mouse outside window.

Actual Results:
Case 1) mouseUpHandler gets called once.
Case 2) mouseUpHandler gets called twice.
First stack:
MyWindow/mouseUpHandler
flash.events::EventDispatcher/dispatchEventFunction [no source]
flash.events::EventDispatcher/dispatchEvent [no source]
mx.managers::WindowedSystemManager/stageEventHandler
Second stack:
MyWindow/mouseUpHandler

Expected Results:
Call mouseUpHandler once in all cases.

Workaround (if any):
Balance mouse down events with mouse up events. Ignore other events.