Bug 39569

Summary: [Qt] QtWebKit overwrites transparent wmode with opaque
Product: WebKit Reporter: arvid2.nilsson
Component: Plug-insAssignee: Nobody <webkit-unassigned>
Severity: Normal CC: benjamin, cmarcelo, ostap73
Priority: P3 Keywords: Qt, QtTriaged
Version: 528+ (Nightly build)   
Hardware: All   
OS: All   
URL: http://vimeo.com

Description arvid2.nilsson 2010-05-23 11:56:37 PDT
In FrameLoaderClientQt.cpp, FrameLoaderClientQt::createPlugin.

The code for NPAPI plugins always overwrites wmode transparent with opaque. According to http://blog.forwardbias.in/2009/12, this may be helpful on X11. However on Mac and Windows it results in transparent plugins that would have rendered just fine, appearing opaque and resulting in visual errors or inaccessible video (vimeo.com).

I suggest adding an X11 condition like:

                if (wmodeIndex == -1) {
-                } else
+                } else {
+#ifdef Q_WS_X11
+                    // wmode=opaque only required on X11, http://blog.forwardbias.in/2009/12
                    values[wmodeIndex] = "opaque";
+                }
Comment 1 Benjamin Poulain 2011-01-28 18:21:19 PST
Reviewers do not see patches if you do not submit them as patches. Here is how to submit a patch to WebKit: https://trac.webkit.org/wiki/QtWebKitContrib
Comment 2 Viatcheslav Ostapenko 2011-03-01 20:04:19 PST

*** This bug has been marked as a duplicate of bug 50495 ***