Bug 105817 – [Qt] QGraphicsWidget application plugins are created but not visible, REGRESSION(r135515)

• Component: New Bugs
• Status: RESOLVED INVALID

[Alex Kalugin]

Steps to reproduce:
1. Create a simple HTML page which includes object element with type "application/x-qt-plugin"
2. Create a simple Qt application which can browse pages with QGraphicsWebView
3. In your application override QWebPage::createPlugin to create any instance of QGraphicsWidget which can draw something
4. Run application, browse the page from step 1.
5. Confirm createPlugin function creates plugin widget and passes it to QtWebKit

Expected results:
 - Plugin widget gets shown and works with no problem

Actual results:
 - Plugin widget is hidden. With debugger I can see it gets created and receives initial resize event, but no paint events as far as it is not visible.

The issue is reproducible on Qt 5.0.0.
There was no such issue in Qt5 Beta, but appeared in Qt5 RC. I believe the issue was introduced with the following changes:
http://trac.webkit.org/changeset/135515/trunk/Source/WebKit/qt/WebCoreSupport/FrameLoaderClientQt.cpp

I have attached the patch which I used to workaround the issue in my particular case.

[Alex Kalugin]

Created attachment 180841 [details]
Patch I have used to workaround the issue. Not a fix in any kind.

[Jocelyn Turcotte]

=== Bulk closing of Qt bugs ===

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