Open Bug 1231101 Opened 9 years ago Updated 2 years ago

[e10s] background on several sites twitches when I middle-click to start autoscroll (because of incorrect clientX/clientY reported by mouseover/mouseout event)

Categories

(Core :: DOM: UI Events & Focus Handling, defect, P4)

Product:
Core
Component:
DOM: UI Events & Focus Handling
Platform:
Unspecified
Windows
Type:
defect

Tracking

()

Tracking Flags:
Tracking Status
e10s + ---
firefox45 --- wontfix
firefox46 --- wontfix
firefox47 --- affected
firefox48 --- affected
firefox49 --- affected

People

(Reporter: arni2033, Unassigned)

References

Details

User Story

Affected sites (2016.05.20):

http://www.megalyrics.ru/
http://company.riamo.ru/
http://housamz.com/   (http://housamz.com/blog/)

Attachments

(2 files)

testcase 1 - incorrect clientX, clientY reported by mouseover, mouseout event.htm
347 bytes, text/html
Details
screencast 1 - background on www.megalyrics.ru twitches.webm
588.54 KB, video/webm
Details 
>>>   My Info:   Win7_64, Nightly 45, 32bit, ID 20151206030448
STR_A:
1. Open http://www.megalyrics.ru/lyric/portishead/give-me-a-reason-to-love-you.htm
2. Make sure that page is long enough to be scrollable
3. Middle-click on the right side of the background at the top of the page

Result:       Background quickly twitches to the right and back
Expectations: Background should stay still, just like in normal (non-e10s) mode


STR_B:
1. Open "testcase 1"
2. Make sure that page is long enough to be scrollable
3. Open console (Ctrl+Shift+K)
4. Middle-click on the page

Result:       Console reports strange numbers in clientX/clientY. I've got the following numbers:
> mouseout  { target: <html>, buttons: 0, clientX: 498, clientY: 124, layerX: 498, layerY: 124 }
> mouseover { target: <body>, buttons: 0, clientX: 498, clientY: 124, layerX: 498, layerY: 124 }
> mouseout  { target: <body>, buttons: 0, clientX: 14,  clientY: -57, layerX: 14,  layerY: -57 }
> mouseover { target: <html>, buttons: 0, clientX: 14,  clientY: -57, layerX: 14,  layerY: -57 }
              
Expectations: No strange numbers like "clientX: 14, clientY: -57". I clicked mouse ~~in the middle
              of the page, so I expect to get numbers like "clientX: 498, clientY: 124"
tracking-e10s: --- → ?
Has STR: --- → yes
Does this happen with APZ disabled as well? I see that it's marked status-firefox45:affected, but 45 doesn't have APZ enabled. It's also marked blocking apz-desktop though which is conflicting information.
OS: Unspecified → Windows
Going to assume this is not APZ-related.
No longer blocks: apz-desktop
So here's the old version of that page:
> http://web.archive.org/web/20150826022538/http://www.megalyrics.ru/
It'd be good if somebody saved it _completely_ somehow, because the mechanism may differ from
comment 0 (which OFC is a bug itself). My suggestion is to keep this bug about mouseover/mouseout,
and then check if that will fix old megalyrics widget.
Priority: -- → P4
I can confirm that APZ enabled/disabled doesn't affect this bug.
status-firefox45: affected → wontfix
status-firefox46: --- → wontfix
status-firefox47: --- → affected
status-firefox48: --- → affected
status-firefox49: --- → affected
User Story: (updated)
Summary: [e10s] background on http://www.megalyrics.ru/ twitches when I middle-click to start autoscroll (because of incorrect clientX/clientY reported by mouseover/mouseout event) → [e10s] background on several sites twitches when I middle-click to start autoscroll (because of incorrect clientX/clientY reported by mouseover/mouseout event)
User Story: (updated)
Component: Event Handling → User events and focus handling
Severity: normal → S3
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