705506 - position: fixed elements don't follow viewport during panning; update after end of scrolling

Status: RESOLVED FIXED

(Firefox for Android Graveyard :: General, defect, P4)

Description

[Brion Vibber]

Attachment: HTML file showing problem; position:fixed gray header/footer bars pan with the page

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:8.0.1) Gecko/20100101 Firefox/8.0.1
Build ID: 20111120135848

Steps to reproduce:

Elements with position:fixed are supposed to stick with the viewport during scrolling.

To reproduce:
* load a page with position:fixed elements, such as the attached HTML file
* pan/scroll vertically through the page


Actual results:

Fixed elements pan along with the page through/out of the viewport, then update to match the new viewport when panning ends.


Expected results:

Fixed elements should stay fixed to the viewport during panning.

Possibly just an extension of bug 607417

Comment 1

[Kevin Brosnan [Ex-Mozilla]]

As I recall as part of the discussion of how to implement the text zoom feature listed this as a known issue.

Comment 2

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

This doesn't have anything to do with text zoom or font size inflation.

(Maybe move to Core::Graphics?  I'm not sure.)

Comment 4

[Aaron Train [:aaronmt]]

Seems like this depends on bug 607417; and this is most definitely still reproducable (Nightly 03/28).

Comment 5

[Martijn Wargers (dead)]

This should work now, at least the testcase is fixed for me on the Galaxy Nexus, using latest trunk build.