1402657 - movementX and movementY values are incorrect for pointermove event

Status: RESOLVED DUPLICATE of bug 1400143

(Core :: DOM: Events, defect, P2)

Description

[Luke]

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/62.0.3202.29 Safari/537.36

Steps to reproduce:

1. Go to https://jsfiddle.net/f98hqqg5/1/ with pointer events enabled (Nightly Win64).
2. Try drag the red bar or green area (test #1).
3. Change the 'pointermove' event handler to 'mousemove' and re-run the test.
4. Try drag the red bar or green area (test #2).


Actual results:

#1: The elements will disappear off into the void almost instantly.
#2: The elements will follow your mouse cursor.


Expected results:

Both times the elements should have followed your mouse cursor.

Comment 1

[Alexandru Simonca [:asimonca], Release Desktop QA]

How does this affect websites? Should we be concerned about getting this fixed before we reach beta?

Comment 2

[Olli Pettay [:smaug][[e-mail]]]

Pointer events aren't enabled on beta.
http://searchfox.org/mozilla-central/rev/8efd128b48cdae3a6c6862795ce618aa1ca1c0b4/modules/libpref/init/all.js#5142

Just blocking bug 822898 should be enough.

Comment 3

[Luke]

Since I reported this bug I think you've covered it with https://bugzilla.mozilla.org/show_bug.cgi?id=1400143#a1499410_559389

Comment 4

[Ming-Chou Shih [:stone]]

(In reply to Luke from comment #3)
> Since I reported this bug I think you've covered it with
> https://bugzilla.mozilla.org/show_bug.cgi?id=1400143#a1499410_559389

Yes, it is and I forgot to clean this one. Thanks for the reminder.