60809 - Support "mousewheel button" triggered panning

Status: VERIFIED DUPLICATE of bug 22775

(Core :: XUL, enhancement, P3)

Description

[Taras Tielkes]

This RFE is *NOT* about normal mouse wheel support.

I'd like to ask for the same functionality that IE and MS Word provide by 
enabling document scrolling by:
1) Clicking the mouse wheel (if possible) or middle mouse button
2) Using mouse movement to control document scrolling speed and direction
3) Clicking the mouse wheel again to "release" the mouse.

This functionality is present in a lot of Windows apps, and is a great thing 
for large document. It's also much less hassle than scrolling by tunring the 
mouse wheel 100 times.

Comment 1

[Doron Rosenberg (IBM)]

1) - clicking should open a window or what exactly?
2) - if I scroll fast, the page will scroll faster...

Comment 2

[Taras Tielkes]

1) Clicking the mouse wheel once will put the mouse in this special "scrolling 
mode". A separate mouse cursor will be drawn, and will indicate the direction 
of scrolling. (At least, that is how it works in IE4+ and other Windows 
programs.)

2) Yes, the further you move the mouse from the original "scroll start" 
position, the faster the document will scroll. This also works in horizontal 
direction in IE4+ for *really* wide documents.

Comment 3

[timeless]

To help poor doron, this is usually described as panning.  It is a native 
feature of the wheel mouse, however whenever people reinvent support for the 
wheel it is often forgotten.

Comment 4

[Taras Tielkes]

Thanks. I didn't know that was the right English term.

I don't know about feasibility of this on non-win32 platforms, but it's an 
important useability feature.

Comment 5

[Brian Ryner (not reading)]

I've actually seen this work as-is with Mozilla using certain mouse drivers.  
I'm not sure of the specifics.  I'll hang on to this bug, but will probably 
need some help.

Comment 6

[Brian Ryner (not reading)]

*** Bug 61056 has been marked as a duplicate of this bug. ***

Comment 7

[Jesse Ruderman]

I've seen this work as-is, but only for vertical scrolling.  Maybe that's a 
different bug...

Comment 8

[timeless]

This is bug 22775.

*** This bug has been marked as a duplicate of 22775 ***

Comment 9

[Stephen Walker]

vrfy dup