Bug 57647

Summary:

Flash plugins with wmode=transparent have black (instead of transparent) background in WebKit2 on Windows

Product:

WebKit

Reporter:

Adam Roben (:aroben) <aroben>

Component:

Plug-ins

Assignee:

Nobody <webkit-unassigned>

Status:

RESOLVED FIXED

Severity:

Normal

CC:

andersca, jhoneycutt

Priority:

Keywords:

InRadar, PlatformOnly

Version:

528+ (Nightly build)

Hardware:

OS:

Windows 7

URL:

http://us.battle.net/wow/en/game/dungeon-helper/

Bug Depends on:

Bug Blocks:

60169

Attachments:

Description	Flags
Let transparent windowless plugins draw into a graphics context with an alpha channel	sam: review+

Description Adam Roben (:aroben) 2011-04-01 11:20:33 PDT

To reproduce:

1. Go to http://us.battle.net/wow/en/game/dungeon-helper/

The Flash plugin on the right side of the page has a black background. It should instead have a transparent background (due to wmode=transparent).

This bug does not occur in WebKit1.

Comment 1 Adam Roben (:aroben) 2011-04-01 11:20:52 PDT

<rdar://problem/9168462>

Comment 2 Adam Roben (:aroben) 2011-04-07 09:31:41 PDT

Here's another simple example: http://www.communitymx.com/content/source/E5141/wmodetrans.htm

Comment 3 Adam Roben (:aroben) 2011-05-02 13:50:52 PDT

I am having a surprisingly hard time writing a test case for this. I can't get transparent plugins to show up at all.

Comment 4 Adam Roben (:aroben) 2011-05-04 08:19:14 PDT

I'm going to land this without a test case. I filed bug 60169 to cover writing a test.

Comment 5 Adam Roben (:aroben) 2011-05-04 08:24:54 PDT

Created attachment 92244 [details]
Let transparent windowless plugins draw into a graphics context with an alpha channel

Comment 6 Adam Roben (:aroben) 2011-05-04 09:54:08 PDT

Committed r85753: <http://trac.webkit.org/changeset/85753>