990802 - [B2G][Homescreen] Cancelling sharing link via email turns Homescreen wallpaper to a blank white screen

Status: RESOLVED FIXED

(Firefox OS Graveyard :: Gaia::System::Window Mgmt, defect)

Description

[Pi Wei Cheng [:piwei] (inactive)]

Attachment: browser_wallpaper.png

Homescreen wallpaper changes to a blank browser page after attempting to share/email a google maps link, cancel out, and return to homescreen.

Repro Steps:
1) Update a Buri to BuildID: 20140401000202
2) Open Firefox browser and access any webpage (google.com)
3) Tap on the share icon
4) Tap 'Cancel' to close email set up
* If you have email already set up, then cancel sending the message.
5) Once returned back to browser, tap on Home button to return to homescreen

Actual:
Wallpaper changed to a blank browser page. Killing the browser process restores the wallpaper.

Expected:
Home screen appears correctly with the correct wallpaper

v1.4 Environmental Variables:
Device: Buri v1.4 MOZ
BuildID: 20140401000202
Gaia: 216cc2e5c8692ba71aa78a9f27e84e9da27952b8
Gecko: 9223243c65a2
Version: 30.0a2
Firmware Version: v1.2-device.cfg

Notes:
Repro frequency: 5/5, 100%
See attached: screenshot and logcat

Comment 1

[Pi Wei Cheng [:piwei] (inactive)]

Attachment: wallpaper_tempChange_log.txt

This issue does NOT occur on 1.3 

Environmental Variables:
Device: Buri v1.3 MOZ
BuildID: 20140401004003
Gaia: 24f562fce468fc948ac9e6185e002c23350cb9ee
Gecko: 0adf24a785f2
Version: 28.0
Firmware Version: v1.2-device.cfg

Comment 3

[Tim Guan-tin Chien [:timdream] (please needinfo)]

Very likely a window management bug.

Alive, could you take a look?

Comment 4

[Preeti Raghunath(:Preeti)]

Cut and dry blocker

Comment 5

[Jason Smith [:jsmith]]

This isn't a systemsfe issue.

Comment 6

[Pi Wei Cheng [:piwei] (inactive)]

The following regression window was found using tinderbox builds.

Last Working Environmental Variables:
Device: Buri 1.4 (Aurora)
BuildID: 20140331155732
Gaia: 55e9c12be944af0a0c51fab89f09501a4918ec24
Gecko: e807224656d8
Version: 30.0a2
Firmware Version: v1.2-device.cfg

First Broken Environmental Variables:
Device: Buri 1.4 (Aurora)
BuildID: 20140331162232
Gaia: 216cc2e5c8692ba71aa78a9f27e84e9da27952b8
Gecko: 883979177a51
Version: 30.0a2
Firmware Version: v1.2-device.cfg

Last Working Gaia / First Broken Gecko: Issue Does NOT reproduce
Gaia: 55e9c12be944af0a0c51fab89f09501a4918ec24
Gecko: 883979177a51

Last Working Gecko / First Broken Gaia: Issue DOES reproduce
Gaia: 216cc2e5c8692ba71aa78a9f27e84e9da27952b8
Gecko: e807224656d8

Gaia Pushlog:
https://github.com/mozilla-b2g/gaia/compare/55e9c12be944af0a0c51fab89f09501a4918ec24...216cc2e5c8692ba71aa78a9f27e84e9da27952b8

Comment 7

[Jason Smith [:jsmith]]

bug 970028 caused this.

Comment 10

[(inactive after 6/18) Alive Kuo [:alive]]

Interesting, v1.5 I cannot repro.

Comment 11

[(inactive after 6/18) Alive Kuo [:alive]]

Attachment: patch for 1.4

The root cause is the class is not removed correctly.

Comment 12

[Tim Guan-tin Chien [:timdream] (please needinfo)]

Comment on attachment 8403744 [details] [review]
patch for 1.4

It might be worthy to investigate what happened between the branches.

Comment 13

[(inactive after 6/18) Alive Kuo [:alive]]

(In reply to Tim Guan-tin Chien [:timdream] (MoCo-TPE) (please ni?) from comment #12)
> Comment on attachment 8403744 [details] [review]
> patch for 1.4
> 
> It might be worthy to investigate what happened between the branches.

cherry-pick & merge issue from bubble-tea.

Comment 14

[(inactive after 6/18) Alive Kuo [:alive]]

https://github.com/mozilla-b2g/gaia/commit/2aedbb9d66b4f9473da1ce561d05a74757a4bfa1