I do get one XID per instance, but that XID is created by Firefox's plugin host code in GtkSocket's internal GdkWindow. So the XID is already mapped to that GdkWindow by the time NPP_SetWindow runs, hence gdk_window_foreign_new() just returns a pointer to that pre-existing GdkWindow, so the parentage tree that _gdk_window_destroy_hierarchy traverses is still hooked up.
But after some more hacking I was able to figure out a work-around. gdk_window_foreign_new() only re-uses the existing GdkWindow if the GdkDisplay pointers match, and gdk_display_open does _not_ re-use existing connections! So by explicitly opening the display and using gdk_window_foreign_new_for_display I was able to force it to really use a foreign window, and now I get all the expected callbacks (unmap, delete, unrealize). In fact, with the _for_display() trick I can use a GtkPlug and get the same callbacks just fine. So the code I eventually settled on is basically this: // Re-open the X11 connection gdk_display_ = gdk_display_open(XDisplayString(display)); // Create plug. gtk_plug_ = gtk_plug_new_for_display(gdk_display_, windowId); // Stop the browser from destroying our GtkPlug too soon. g_signal_connect(G_OBJECT(gtk_plug_), "delete-event", G_CALLBACK(gtk_widget_hide_on_delete), NULL); Thanks for the help! On 19 January 2010 20:55, Kevin DeKorte <kdeko...@gmail.com> wrote: > > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > On 01/19/10 20:29, Tristan Schmelcher wrote: > > Actually, after debugging and looking at the code, it seems that > > gdk_window_foreign_new() first looks up if there is already a GdkWindow > > for that XID and re-uses it if so (gdk/x11/gdkwindow-x11.c:1008). So I > > don't think this approach will work. :( > > You must be doing something wrong since you should get one xid per > windowed plugin instance. I've been using this method for years in both > the mplayerplug-in plugin and the gecko-mediaplayer plugin. > > Take a look at either of those projects source code. I'm sure there is > something there that will help you. > > Kevin > - -- > Get my public GnuPG key from > http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x7D0BD5D1 > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.4.10 (GNU/Linux) > Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org/ > > iEYEARECAAYFAktWjNQACgkQ6w2kMH0L1dG7vACcDZNHS0dTEbXCTHD0IesjVmeF > BCsAn3oewKsZFv/Dv6uV3vfKgR6k7iJl > =uFlq > -----END PGP SIGNATURE----- _______________________________________________ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
