1161662 - [Browser][Panning and Zooming] The overscroll effect will happen while scrolling in the middle of a page in the browser app

Status: VERIFIED FIXED

(Core :: Panning and Zooming, defect)

Description

[Derek Harris [:DerekH] - Dont need info. Last day 6/5/15]

Attachment: Overscroll Browser Logcat

Description:
While the user is zoomed into a page, or on a page with a large area of scrolling space, the page will exhibit overscroll behavior in the middle of an app while scrolling.


Repro Steps:
1) Update a Flame to 20150505010204
2) Open Browser> Navigate to google.com
3) Search something such as "Mozilla"
4) Zoom all the way in> Scroll/Pan around


Actual:
Panning or scrolling on any zoomed in webpage will show the overscroll effect mid scroll


Expected:
The overscroll effect only shows at the top or bottom of a page/screen

Environmental Variables:
Device: Flame 3.0 (319mb)(Kitkat)(Full Flash)
Build ID: 20150505010204
Gaia: 70077825aab2c7a79611befb40a5fe7e610d5443
Gecko: 102d0e9aa9e1
Gonk: a9f3f8fb8b0844724de32426b7bcc4e6dc4fa2ed
Version: 40.0a1 (3.0)
Firmware Version: v18D-1
User Agent: Mozilla/5.0 (Mobile; rv:40.0) Gecko/40.0 Firefox/40.0


Repro frequency: 10/10
See attached: Logcat, Video - https://youtu.be/2UYXkV-tjP4

Comment 1

[Derek Harris [:DerekH] - Dont need info. Last day 6/5/15]

This issue does NOT occur on Flame 2.2

The overscroll effect only shows at the top or bottom of a page/screen

Environmental Variables:
Device: Flame 2.2 (319mb)(Kitkat)(Full Flash)
Build ID: 20150505002501
Gaia: 772a9491909abd02dc67278dd453746e2dd358a8
Gecko: 2df83538ae20
Gonk: ab265fb203390c70b8f2a054f38cf4b2f2dad70a
Version: 37.0 (2.2)
Firmware Version: v18D-1
User Agent: Mozilla/5.0 (Mobile; rv:37.0) Gecko/37.0 Firefox/37.0

Comment 2

[Kartikaya Gupta (email:[e-mail])]

[Blocking Requested - why for this release]: bad user experience, is a regression

Comment 3

[Jayme Mercado [:JMercado] (Inactive 3/4/2016)]

The changes for Bug 1156636 seem to have caused this issue.

B2g-inbound Regression Window

Last Working 
Environmental Variables:
Device: Flame 3.0
BuildID: 20150504001102
Gaia: e18cce173840d6ff07fb6f1f0e0ffb58b99aab3e
Gecko: 8e1f05ac1281
Version: 40.0a1 (3.0) 
Firmware Version: v18D-1
User Agent: Mozilla/5.0 (Mobile; rv:40.0) Gecko/40.0 Firefox/40.0

First Broken 
Environmental Variables:
Device: Flame 3.0
BuildID: 20150504024002
Gaia: e18cce173840d6ff07fb6f1f0e0ffb58b99aab3e
Gecko: c9073aaaf9a6
Version: 40.0a1 (3.0) 
Firmware Version: v18D-1
User Agent: Mozilla/5.0 (Mobile; rv:40.0) Gecko/40.0 Firefox/40.0

Last Working gaia / First Broken gecko - 
Gaia: e18cce173840d6ff07fb6f1f0e0ffb58b99aab3e
Gecko: c9073aaaf9a6

First Broken gaia / Last Working gecko - 
Gaia: e18cce173840d6ff07fb6f1f0e0ffb58b99aab3e
Gecko: 8e1f05ac1281

Gecko Pushlog: http://hg.mozilla.org/integration/mozilla-inbound/pushloghtml?fromchange=8e1f05ac1281&tochange=c9073aaaf9a6

Comment 4

[Morris Tseng [:mtseng] [:Morris] (Inactive)]

checking.

Comment 5

[Morris Tseng [:mtseng] [:Morris] (Inactive)]

Attachment: Exclude post scale from layer.GetTransform().

We cannot exclude post scale from mParameters.mX/YScale because in painted layer, mParameters.mX/YScale is not represent post scale. So I exclude it from layer.GetTransform().

Comment 6

[Morris Tseng [:mtseng] [:Morris] (Inactive)]

https://treeherder.mozilla.org/#/jobs?repo=try&revision=3ab0312bbbe1

Comment 7

[Carsten Book [:Tomcat]]

https://hg.mozilla.org/integration/mozilla-inbound/rev/6afb088b0cff

Comment 8

[Carsten Book [:Tomcat]]

https://hg.mozilla.org/mozilla-central/rev/6afb088b0cff

Comment 9

[Jayme Mercado [:JMercado] (Inactive 3/4/2016)]

This issue is verified fixed on the latest 3.0 Nightly Flame build.  

Actual Results: The browser does not overscroll in the middle of pages when zoomed.  It does correctly overscroll at the top and bottom of the page.

Environmental Variables:
Device: Flame 3.0 KK (Full Flash) (319 MB)
BuildID: 20150528010203
Gaia: 05380df3158fa39e1dde1687c0bf11a71f8c6868
Gecko: baa9c64fea6f
Gonk: 040bb1e9ac8a5b6dd756fdd696aa37a8868b5c67
Version: 41.0a1 (3.0) 
Firmware Version: v18D-1
User Agent: Mozilla/5.0 (Mobile; rv:41.0) Gecko/41.0 Firefox/41.0