114150 - Mouse scroll wheel doesn't work near bottom of any page

Status: RESOLVED WONTFIX

(Core :: DOM: UI Events & Focus Handling, defect, P2)

Description

[Waldemar Horwat]

The mouse scroll wheel doesn't work if the mouse hovers near the bottom of any
HTML page displayed in a browser window.  This bug is independent of the myriad
other focus and form element scroll wheel bugs -- it occurs even on pages with
no form controls and which have been properly focused.

Moving the mouse above the bottom 50 pixels or so in the window reactivates the
scroll wheel; if the mouse moves back near the bottom of the window, the scroll
wheel again doesn't work.

Comment 1

[Madhur Bhatia]

Reporter, 
A url or a testcase would be helpful in reproducing this bug. Thanks!

Comment 2

[Waldemar Horwat]

I wrote "any page".  The one you're looking at now is as good a test case as
any.  www.netscape.com and www.mozilla.org are two other fine test cases.

Comment 3

[Waldemar Horwat]

Btw, I'm using the classic skin under MacOS 9.2.1, if that matters.

Comment 4

[Waldemar Horwat]

The problem seems to be that although Navigator displays the toolbars at the top
of the window, it seems to think that they are at the bottom for the purposes of
determining valid mouse positions for using the scroll wheel to scroll the
window.  Using the mouse wheel to scroll the window works when the mouse is over
the toolbars (although maybe it shouldn't) and doesn't work (and should) when
the mouse is over the bottom n pixels of the window, where n is the height of
the toolbars.  Collapsing the toolbars decreases the size of the dead area at
the bottom of the window.

Comment 5

[Waldemar Horwat]

Nominating for nsbeta1.  Basic usability bug.

Comment 6

[Dimitrios]

*** Bug 117265 has been marked as a duplicate of this bug. ***

Comment 7

[saari (gone)]

-> bryner, assuming this is not mac specific

Comment 8

[Waldemar Horwat]

The symptoms of this bug have changed a bit recently.  Now the mouse wheel
doesn't work near the bottom of any page (as before), but once it has been used
successfully higher up on the page, it then begins to work near the bottom of
the page as well.  Weird.

Comment 9

[Waldemar Horwat]

To re-trigger the bug, resize the window.  The scroll wheel won't work near the
bottom of the page until it has been used successfully in the middle of the window.

Comment 10

[Steve Dagley]

Seems to work ok on Mac OS X but we handle mousewheel scrolling differently
between X and 9.x.  

Comment 11

[Peter Trudelle]

nsbeta1- per ADT triage team, ->1.2

Comment 12

[Ludovic Hirlimann [:Usul]]

This bug should be close 9.X is no more supported.

Comment 13

[Simon Paquet [:sipaq]]

This bug is targeted at a Mac classic platform/OS, which is no longer supported
by mozilla.org. Please re-target it to another platform/OS if this bug applies
there as well or resolve this bug.

I will resolve this bug as WONTFIX in four weeks if no action has been taken.
To filter this and similar messages out, please filter for "mac_cla_reorg".

Comment 14

[Simon Paquet [:sipaq]]

mac classic is no longer supported by Mozilla. Marking WONTFIX.