JDK-6920842 : Wheel events do not bubbling to the browser if they was not treated in applet.
  • Type: Bug
  • Component: client-libs
  • Sub-Component: java.awt
  • Affected Version: 6u19-rev
  • Priority: P3
  • Status: Resolved
  • Resolution: Fixed
  • OS: windows
  • CPU: x86
  • Submitted: 2010-01-28
  • Updated: 2011-01-19
  • Resolved: 2010-04-28
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JDK 6 JDK 7
6u21Fixed 7 b91Fixed
Related Reports
Relates :  
JDK-6978632 - test java/awt/event/MouseWheelEvent/InfiniteRecursion/InfiniteRecursion_3.html failed
Relates :  
JDK-6956646 - Test: MouseWheelEvent/InfiniteRecursion test receives more MouseWheelEvents than expected
Description
Wheel events do not bubbling to the browser if they was not treated in applet. The effect is visible for applets that don't contain the scrollable controls inside.
Comments
SUGGESTED FIX http://sa.sfbay.sun.com/projects/awt_data/7/6920842/
26-08-2010
EVALUATION The research results: 1. The issue cannot be resolved under the FF on AWT level: FF plugin window eats the WM_MOUSEWHEEL event and blocks wheel event bubbling to browser. The workaround is available from FF team (bugfix - that is a bug) or by hack on deploy level. 2. The problem resolved for IE8, Chrome (was not tested with Safari, but it should work). 3. Due to incorrect treatment of MouseWheelEvent (there is not "consume" function call on action event) the scroll is doubling in applet and on the page (the same effect was in early Flash versions) in presence of "JScrollPane". The Swing problems are easy-to-fix.
28-01-2010