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Bug ID: 6315717 Support For Mouse With Multiple Scroll Wheels and 4 or More Buttons
6315717 : Support For Mouse With Multiple Scroll Wheels and 4 or More Buttons

Details
Type:
Enhancement
Submit Date:
2005-08-25
Status:
Closed
Updated Date:
2011-03-07
Project Name:
JDK
Resolved Date:
2011-03-07
Component:
client-libs
OS:
windows_vista,linux,windows_xp
Sub-Component:
java.awt
CPU:
x86
Priority:
P4
Resolution:
Fixed
Affected Versions:
5.0,6,7
Fixed Versions:
7

Related Reports
Duplicate:
JDK-6668275 - Mouse wheel tilt does generate wrong events
Duplicate:
JDK-6856394 - Support for more than three mouse buttons
Relates:
JDK-6848336 - java/awt/event/InputEvent/ModHighBitsTest/ModHighBitsTest.html fails in Jdk7 b60 pit build
Relates:
JDK-6624085 - Fourth mouse button (wheel) is treated like second button - isPopupTrigger returns true
Relates:
JDK-6490814 - Robot.mousePress/Relase should also accept InputEvent.BUTTONx_DOWN_MASK
Relates:
JDK-6799099 - All automatic regression tests that create Robot fail on X11
Relates:
JDK-6833404 - java.awt.event.MouseEvent constructor should mention throwing HE in headless mode
Relates:
JDK-6855323 - Robot(GraphicsDevice) constructor initializes LEGAL_BUTTON_MASK variable improperly
Relates:
JDK-6339087 - Robot.mouseWheel() doesn't work on solaris
Relates:
JDK-6440198 - Apple and Microsoft users want horizontal scroll wheel support
Relates:
JDK-6260940 - Support 'back' and 'forward' mouse buttons on, e.g., Intellimouse Optical
Relates:
JDK-6847958 - MouseWheel event is getting triggered for the disabled Textarea in jdk7 b60 pit build.
Relates:
JDK-6856929 - Frame is not getting resized using Robot in OpenSolaris and Ubuntu
Relates:
JDK-6834576 - PIT: closed/java/awt/ScrollPane/RemoveChild/ test fail with deadlock on rhel and sles

Sub Tasks

Description
A DESCRIPTION OF THE REQUEST :
Java should be able to distinguish between the different scroll wheels on a mouse with 2 scroll wheels. Also, it should be able to recognice when a fourth or fifth mouse button has been pressed.

JUSTIFICATION :
Many windows applications already support this, users of java applications expect this functionality

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
first wheel: scroll up / down
second wheel: scroll left / right
button 4,5,6,etc: programmable from MouseEvent/MouseEventListener
ACTUAL -
first wheel: scroll up / down
second wheel: copies first wheel (MouseWheelEvent sees it as same wheel)
button 4,5,6,etc: nothing

Comments
SUGGESTED FIX

http://hg.openjdk.java.net/jdk7/awt/jdk/rev/3b9a288d7ddb
http://ccc.sfbay/6315717
http://sa.sfbay.sun.com/projects/awt_data/7/6315717/
2008-09-16 
EVALUATION

Believe fourth and fifth buttons are XBUTTON on Win32. This seem only supported by Windows 2000/XP/Vista. According to MSDN WM_XBUTTONDOWN/UP may only reflect the state of two buttons in its high-order part of WPARAM.
Should take a look on how OS handles 6-th (7-th, etc.) mouse button (perhaps it's a driver area that syntesises a sequence of events to get an appropriate result). We have to find how the second wheen is treated by the native system. MSDN doesn't show any other variants of MOUSEWHEEL messages so it's likely that horizontal scroll is just another variant of synthetic events.
2006-04-19


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