685768 - Video controls of Silverlight/Flash certain site do not work after I detach tab and scroll

Status: RESOLVED INCOMPLETE

(Core :: Layout, defect)

Description

[Alice0775 White]

Build Identifier:
http://hg.mozilla.org/mozilla-central/rev/b7d269a291b6
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:9.0a1) Gecko/20110908 Firefox/9.0a1 ID:20110908030848


Video controls of Svilverlight do not work after I detach tab and scroll.
This may happen only in Windows(not sure).

Silverlight Plug-In
    File: npctrl.dll
    Version: 4.0.60531.0
    4.0.60531.0

It works again if I restored the tab was first in.

Similar Bug 599992, but Bug 599992 is under disabled OOPP.
Similar Bug 685689(but I cannot access site) for Flash on Firefox6.0.x.

Reproducible: Always

Steps to Reproduce:
1. Open Firefox with clean profile
2. Open several tabs
3. Open URL ( http://www.microsoft.com/showcase/ja/jp/details/7b917c16-111c-425e-be85-5069a6106f2f) 
4. Detach the tab of step3.
5. Scroll
6. Operate video controls (pause/seek bar/volume slider, etc.)
 
Actual Results:
  Video controls does not work any more.
  
Expected Results:
  Video controls should work properly.

Regression window(cached m-c hourly),
Works:
http://hg.mozilla.org/mozilla-central/rev/70d10ef482f3
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:2.0b10pre) Gecko/20110113 Firefox/4.0b10pre ID:20110113045435
Fails:
http://hg.mozilla.org/mozilla-central/rev/17fae822d2d7
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:2.0b10pre) Gecko/20110112 Firefox/4.0b10pre ID:20110113052706
Pushlog:
http://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=70d10ef482f3&tochange=17fae822d2d7

Suspected Bug:
Bug 619176 - Plugins get Visible state every time when scrolling (:BuildLayer always make them visible) SetActive calls. r=jst

Comment 1

[Alice0775 White]

The problem happens in the Flash players too.
http://news.yahoo.com/video

Shockwave Flash
    File: NPSWF32.dll
    Version: 10.3.183.7
    Shockwave Flash 10.3 r183

Comment 2

[Oleg Romashin (:romaxa)]

After detaching tab, I see controls only working when page scrolled to 0,0 position... if page is scrolled a bit down, then all events seems translated down too and events not coming to plugin...

Comment 3

[Alice0775 White]

And It is reproduced without scroll when open sidebar or Open BookmarksToolbar

Comment 4

[Oleg Romashin (:romaxa)]

In new detached tab, if I open new tab and switch between them,  then it does not help, only reloading of that page helps...

Comment 5

[Oleg Romashin (:romaxa)]

Also found that if non-detached tab was scrolled a bit, then in detached window it works only in that position, scrolling to 0.0 also break that in that case

Comment 6

[Oleg Romashin (:romaxa)]

One more finding, is that if you press right mouse button, then context menu appear in first window!, and scroll position of that first window affecting scroll coordinates of mouse events for detached tab...
Sounds like after detaching tab, plugin retain connected to original window...

Comment 7

[Oleg Romashin (:romaxa)]

Also I can reproduce it on FF6.0 too...
Are you sure that yahoo case is not reproducible on 6.0?

Comment 8

[Oleg Romashin (:romaxa)]

Btw context menu and other problems seems caused by cached NPN_GetValue(NPNetscapeWindow), which is not refreshed on plugin side after moving tab with plugin into new window.
After closing previous window context menu in plugin just stop working at all

Comment 9

[Alice0775 White]

(In reply to Oleg Romashin (:romaxa) from comment #6)
> One more finding, is that if you press right mouse button, then context menu
> appear in first window!,

may be Bug 647392

Comment 10

[Alice0775 White]

(In reply to Oleg Romashin (:romaxa) from comment #7)
> Also I can reproduce it on FF6.0 too...
> Are you sure that yahoo case is not reproducible on 6.0?

I can reproduced Firefox4.0.1 and later(incl. Firefox6.0.2).