1025236 - (vertical-homescreen) Statusbar transition not correct when scrolling

Status: VERIFIED FIXED

(Firefox OS Graveyard :: Gaia::Homescreen, defect)

Description

[Peter La]

The status bar transition isn't correct.

Current behaviour:
The way the status bar transitions from 15% opacity to 100% opacity is currently to TRANSLATE a new rectangle that is 100% opacity downwards to cover up the old status bar.

Expected behaviour:
The status bar rectangular region should just FADE from 15% opacity to 100% opacity.  No translation.  It is not moving, it is fading.

Please see following attachments that illustrate the difference.

Note, there was a previous bug filed for status bar transitioning to 100% opacity: https://bugzilla.mozilla.org/show_bug.cgi?id=1020755
Opening new bug to deal with the specific WAY in which the transition occurs.

Comment 1

[Peter La]

Attachment: Vertical Scroll.mp4

This is the intended transition.  A fade from 15% to 100% opacity of the status bar on scroll.

Comment 2

[Peter La]

Attachment: StatusbarTransitionProblem.MOV

This is the actual implementation.  The implementation translates a new rectangle that is 100% opacity on top of the 15% opacity statusbar.  This is incorrect.

Comment 3

[Kevin Grandon :kgrandon]

Attachment: Github pull request

Comment 4

[Kevin Grandon :kgrandon]

Comment on attachment 8440112 [details] [review]
Github pull request

This is a super trivial CSS patch and I reviewed the original patch, going to go with R=me. Hope that is ok :)

Comment 5

[Kevin Grandon :kgrandon]

Landed: https://github.com/mozilla-b2g/gaia/commit/b439206d688dae365dc116f2ed730f6ff7a60649

Comment 6

[Kevin Grandon :kgrandon]

Comment on attachment 8440112 [details] [review]
Github pull request

This is needed for the vertical homescreen. It's rather minor and I don't see it causing any problems.

Comment 7

[Ryan VanderMeulen [:RyanVM]]

v2.0: https://github.com/mozilla-b2g/gaia/commit/4be7d7d65f652dc1c48bce09638883d6bf3928e0

Comment 8

[Elie]

Attachment: VIDEO0077.mp4

This issue has been successfully verified on Flame 2.0:
Gaia-Rev        8d1e868864c8a8f1e037685f0656d1da70d08c06
Gecko-Rev       https://hg.mozilla.org/releases/mozilla-b2g32_v2_0/rev/c756bd8bf3c3
Build-ID        20141127000203
Version         32.0
Device-Name     flame
FW-Release      4.4.2


This issue has been successfully verified on Flame 2.1:
Gaia-Rev        5372b675e018b6aac97d95ff5db8d4bd16addb9b
Gecko-Rev       https://hg.mozilla.org/releases/mozilla-b2g34_v2_1/rev/f34377ae402b
Build-ID        20141127001201
Version         34.0
Device-Name     flame
FW-Release      4.4.2