[webkit-dev] BadMatch error when using webkit gtk in a window with rgba visual.

[Zhe Su]

Hi,
  My program uses a gtk window with rgba visual to get translucent
background effect. When I embed a webkit view into this window, it sometimes
crashes with BadMatch error when loading some web page. Error message is:

20:50.170: browser_element.cc:406:
WebViewLoadProgressChanged(Impl=0x1c1bec0, web_view=0x1785080, progress=55)

(lt-ggl-gtk:19180): Gtk-CRITICAL **: gtk_paint_flat_box: assertion
`style->depth == gdk_drawable_get_depth (window)' failed

(lt-ggl-gtk:19180): Gtk-CRITICAL **: gtk_paint_shadow: assertion
`style->depth == gdk_drawable_get_depth (window)' failed

(lt-ggl-gtk:19180): Gtk-CRITICAL **: gtk_paint_flat_box: assertion
`style->depth == gdk_drawable_get_depth (window)' failed

(lt-ggl-gtk:19180): Gtk-CRITICAL **: gtk_paint_shadow: assertion
`style->depth == gdk_drawable_get_depth (window)' failed

(lt-ggl-gtk:19180): Gtk-CRITICAL **: gtk_paint_check: assertion
`style->depth == gdk_drawable_get_depth (window)' failed

(lt-ggl-gtk:19180): Gtk-CRITICAL **: gtk_paint_box: assertion `style->depth
== gdk_drawable_get_depth (window)' failed
The program 'lt-ggl-gtk' received an X Window System error.
This probably reflects a bug in the program.
The error was 'BadMatch (invalid parameter attributes)'.
  (Details: serial 4316 error_code 8 request_code 70 minor_code 0)
  (Note to programmers: normally, X errors are reported asynchronously;
   that is, you will receive the error a while after causing it.
   To debug your program, run it with the --sync command line
   option to change this behavior. You can then get a meaningful
   backtrace from your debugger if you break on the gdk_x_error() function.)

  Do you have any idea about this problem? Is it a bug of webkit gtk?

Regards
James Su
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