1587014 - PDF Viewer page number moves when a scroll is performed over it

Status: RESOLVED DUPLICATE of bug 981248

(Core :: Layout, defect, P3)

Description

[Cristian Baica [:cbaica], Release Desktop QA]

[Affected versions]:

• Fx 71.0a1
• Fx 70.0b13
• Fx 69.0.2

[Affected platforms]:

• macOS 10.14
• windows 10
• ubuntu 18.04
• aarch 64

[Steps to reproduce]:

1. Launch Firefox.
2. Open a PDF file (e.g. this file)
3. Hover the mouse over the current page number.
4. Using the mouse wheel scroll up and down.

[Expected result]:

• Nothing should happen.

[Actual result]:

• The page page number moves slightly inside the box when the scroll operation is performed.

[Regression range]:

• Will come back with a regression range ASAP.

Comment 1

[Cristian Baica [:cbaica], Release Desktop QA]

This is not a recent regression. Here is what I've managed to find:

Last good revision: d320ef56876f52db9bc0eb79554c7332d4793769 (2016-08-05) - buildID 20160805030444
First bad revision: 6b65dd49d4f045c0a9753ce60bdb4b7b4aaedcf8 (2016-08-06) - buildID 20160806030806
Pushlog: https://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=d320ef56876f52db9bc0eb79554c7332d4793769&tochange=6b65dd49d4f045c0a9753ce60bdb4b7b4aaedcf8

Comment 2

[Alice0775 White]

Regression window:
https://hg.mozilla.org/integration/mozilla-inbound/pushloghtml?fromchange=4b7cd5b39cca85efc4b8350520303605cb59efbe&tochange=b1dbce81bf3b6124577fb46414f811ec5f45f4e0

Comment 3

[Brendan Dahl [:bdahl]]

Give the regression range, I'm moving this to layout.

Comment 4

[Emilio Cobos Álvarez (:emilio)]

This may be a CSS issue with the viewer, the inner input is scrollable... Though that doesn't happen when it's type="text".

Probably removing the silly anonymous input (bug 981248) would fix this.

Comment 5

[Emilio Cobos Álvarez (:emilio)]

This seems fixed now with bug 981248.