35683 2010-03-03 07:14:42 -0800 [Qt] QWebView Transparency fails when Flash Plugin is initialized under Ubuntu 9.04 & 9.10 2010-04-26 04:03:17 -0700 1 1 1 Unclassified WebKit New Bugs 528+ (Nightly build) Other OS X 10.5 RESOLVED WONTFIX Qt P2 Normal --- 35962 1 vestbo webkit-unassigned hausmann jturcotte kent.hansen oldest_to_newest 195556 0 vestbo 2010-03-03 07:14:42 -0800 This bug report originated from issue QTBUG-5144 http://bugreports.qt.nokia.com/browse/QTBUG-5144 --- Description --- When a webview is set transparent, normal html content will be displayed on a transparent background. Once a flash player instance is loaded in the webview the transparency of the flash content is preserved, but the webview will not be transparent anymore. The Application output also throws an error: <p>(&lt;unknown&gt;:3122): Gdk-CRITICAL **: gdk_window_get_origin: assertion `GDK_IS_WINDOW (window)' failed</p> <p>This bug seems only to be Linux specific since it does not appear under windows or mac osx. This bug has been reproduced under Ubuntu 9.04 and 9.10 with Qt 4.5.3 aswell as 4.6.0 beta 1.</p> <p>&#8212; Example Code</p> <p>QWebView *webView = new QWebView();<br/> webView-&gt;settings()-&gt;setAttribute(QWebSettings::PluginsEnabled, true);</p> <p>webView-&gt;setFixedSize(500,500);<br/> webView-&gt;setWindowFlags(Qt::FramelessWindowHint);</p> <p>QPalette palette = webView-&gt;palette();<br/> palette.setBrush(QPalette::Base, Qt::transparent);<br/> webView-&gt;page()-&gt;setPalette(palette);<br/> webView-&gt;setAttribute(Qt::WA_OpaquePaintEvent, false);<br/> webView-&gt;setAttribute(Qt::WA_TranslucentBackground, true);</p> <p>QString filePath = "mySWF.swf";<br/> QString applicationName = "myExample";</p> <p>QString htmlTemplate = QString( "&lt;html&gt;"<br/> "&lt;body style =\"margin: 0 0 0 0;\" &gt;"<br/> "&lt;object&gt;"<br/> " &lt;embed "<br/> " src = \"%1\" "<br/> " name = \"%2\" "<br/> " flashvars = \"apppath=%3\" "<br/> " width = \"500\" "<br/> " height = \"500\" "<br/> " menu = \"true\" "<br/> " quality = \"best\" "<br/> //" bgcolor = \"#666666\""<br/> " seamlesstabbing = \"true\" "<br/> " wmode = \"transparent\"" // window, opaque, transparent, direct, gpu<br/> " allowfullscreen = \"true\""<br/> " allowscriptaccess = \"always\""<br/> " allownetworking = \"all\""<br/> " type=\"application/x-shockwave-flash\"&gt; "<br/> " &lt;/embed&gt;"<br/> "&lt;/object&gt; "<br/> "&lt;/body&gt;&lt;/html&gt;")<br/> .arg(filePath)<br/> .arg(QApplication::applicationDirPath())<br/> .arg(applicationName);</p> <p>webView-&gt;setWindowTitle(applicationName);<br/> webView-&gt;setHtml(htmlTemplate);<br/> webView-&gt;show();</p> 200787 1 kent.hansen 2010-03-17 08:04:49 -0700 (K)ubuntu 9.10, r55986, Qt 4.7: (process:12843): Gtk-CRITICAL **: gtk_clipboard_get_for_display: assertion `display != NULL' failed Adobe Flash Player: gtk_clipboard_get(GDK_SELECTION_PRIMARY); failed. Trying to call gtk_init(0,0); and then a white view. No transparency. Same with 4.6. WebKit shipped with Qt 4.5: (process:12965): Gtk-CRITICAL **: gtk_clipboard_get_for_display: assertion `display != NULL' failed Adobe Flash Player: gtk_clipboard_get(GDK_SELECTION_PRIMARY); failed. Trying to call gtk_init(0,0); (<unknown>:12965): Gdk-CRITICAL **: gdk_window_get_origin: assertion `GDK_IS_WINDOW (window)' failed and then a black view. No transparency. On Mac I don't see anything with r55986 & 4.7. 201018 2 hausmann 2010-03-17 15:58:14 -0700 I think this is a WONTFIX ;( If I understand/guess correctly ;) then the WebView will get backed up by an X11 window - due to the windowed x11embed'ed plugin. At that point there's no transparency unless you have ARGB visuals. 216989 3 jturcotte 2010-04-26 04:03:17 -0700 Resolving as won't fix.