74468 - MouseEvent.getButton() doesn't return -1 on mouse over if no button is pressed

Status: VERIFIED WONTFIX

(Core :: DOM: Events, defect)

Description

[edburns]

MouseEvent.getButton() doesn't return -1 on mouse over if no button is pressed

Comment 1

[edburns]

Added cc.

Comment 2

[edburns]

Attachment: cvs diff -u of fix for this bug, first iteration.

Comment 3

[edburns]

I need r= and sr= on this.

Comment 4

[edburns]

Attachment: cvs diff -u of fix for this bug, second iteration

Comment 5

[Blake Ross]

r=blake if joki and jst are okay with this.

Comment 6

[Johnny Stenback (:jst)]

MouseEvent.button is an unsigned property, i.e. it can't be negative so we can't
return -1, still investigating...

Comment 7

[Johnny Stenback (:jst)]

Isn't the real solution to the problem here to check if event.detail == 0 when
the mouse over event fires, if event.detail is 0 then no button is clicked, or
am I reading the spec wrong?

Comment 8

[Blake Ross]

I said the same thing. The second patch supposedly addresses that problem by 
casting it to a PRUint16.  That was timeless' suggestion, and he says it'll 
work propertly...(if this isn't right, there's pre-existing code in the 
function that does this that needs changing)

But I think Johnny is right about event.detail (per the spec and our 
implementation), making this a wontfix...

Comment 9

[edburns]

Thanks, that works for me.  Marking should I mark invalid?  Reassign?

Comment 10

[Blake Ross]

WONTFIX sounds good...

Comment 11

[Vladimir Ermakov]

Verifying