Hi, I've had a similar problem when trying to give focus to a widget within the embedded window (from socket application). It seems that this is not really possible at the present moment. I've created an example with the plug-socket example code [0]. Here [1] is also a patch for a gtk_socket_focus_forward () method that could give focus to the next widget within the embedded window, but I have not yet received any response on this approach. An example of how this could be used (using the plug-socket example) can also be found in the focus_forward branch [2].
The bug report has some more information, also I sent an email to this list a while ago: https://mail.gnome.org/archives/gtk-app-devel-list/2014-May/msg00002.html [0] https://github.com/gauteh/plug-socket-grab-focus [1] https://bugzilla.gnome.org/show_bug.cgi?id=729248 [2] https://github.com/gauteh/plug-socket-grab-focus/tree/focus_forward Cheers, Gaute On Tue, Aug 26, 2014 at 10:24 PM, Benjamin Schnitzler <benjaminschnitz...@googlemail.com> wrote: > Dear list members, > > I'm trying to create an unmanaged Gtk window containing one or more embedded > windows (for example terminals). I'm having Problems focussing and sending > input > to these embedded windows. I already tried to embed an xterm and a urxvt > window. > At least the urxvt works correctly, if no other elements are in the window. > However putting a button into the window leads to the terminal loosing its > focus > with no apparent way to let it regain it. It is however possible to send an > XEMBED_FOCUS_IN message to the urxvt window. Whe the urxvt recieves the > message, > it will at least change the cursor correctly, but yet, no input is send to it. > Using an xterm doesn't work, even with normal toplevel windows. Can You help > me > in solving this problem? Here is a gist containing a more or less minimal > example (I'm using the gtkmm C++ interface): > https://gist.github.com/anonymous/f179ff891f7c8029faf8 > or clone it via: > git clone https://gist.github.com/f179ff891f7c8029faf8.git > > Benjamin > > For reference, here is the code from the gist: > > Makefile: > sockfoc: sockfoc.cc window_ext.h > g++ -ggdb sockfoc.cc -o sockfoc `pkg-config gtkmm-3.0 --cflags --libs` -lX11 > > sockfoc.cc > #include <gtkmm.h> > #include <gtkmm/socket.h> > > #include "window_ext.h" > > #define XEMBED_FOCUS_IN 4 > #define XEMBED_FOCUS_CURRENT 0 > > class TheWindow : public WindowExt > { > Gtk::Box* box; > Gtk::Socket* socket; > Gtk::Button* button_close; > > public: > TheWindow() : WindowExt(Gtk::WINDOW_POPUP) > { > signal_realize().connect( sigc::mem_fun(*this,&TheWindow::add_term) ); > > button_close = Gtk::manage( new Gtk::Button("Close Window.") ); > box = Gtk::manage( new Gtk::Box(Gtk::ORIENTATION_VERTICAL) ); > box->pack_start( *button_close ); > add(*box); > > button_close->signal_clicked().connect( > sigc::mem_fun(*this,&Window::hide) > ); > > show_all(); > grab_keyboard(this->get_window()); > } > > void add_term() > { > socket = Gtk::manage( new Gtk::Socket ); > box->pack_start( *socket ); > int xid = socket->get_id(); > char buffer[50]; > //sprintf(buffer, "xterm -into %d &", xid); > sprintf(buffer, "urxvt -embed %d &", xid); > system(buffer); > box->show_all(); > > socket->signal_plug_added().connect( > sigc::mem_fun(*this, &TheWindow::send_focus_in) > ); > > socket->signal_plug_removed().connect( > sigc::mem_fun(*this, &TheWindow::on_plug_removed) > ); > > } > > bool on_plug_removed() > { > hide(); > return false; > } > > void send_focus_in() > { > GdkWindow* plug = socket->get_plug_window()->gobj(); > GdkDisplay *display = gdk_window_get_display(plug); > > XClientMessageEvent xclient; > memset(&xclient, 0, sizeof (xclient)); > > xclient.window = GDK_WINDOW_XID(plug); > xclient.type = ClientMessage; > xclient.message_type = > gdk_x11_get_xatom_by_name_for_display(display, "_XEMBED"); > xclient.format = 32; > xclient.data.l[0] = gtk_get_current_event_time(); > xclient.data.l[1] = XEMBED_FOCUS_IN; > xclient.data.l[2] = XEMBED_FOCUS_CURRENT; > xclient.data.l[3] = 0; > xclient.data.l[4] = 0; > > XSendEvent( > GDK_WINDOW_XDISPLAY(plug), > GDK_WINDOW_XID(plug), False, NoEventMask, (XEvent *)&xclient > ); > } > }; > > int main(int argc, char** argv) > { > Glib::RefPtr<Gtk::Application> app; > app = Gtk::Application::create(argc, argv, "socket.focustest"); > > TheWindow win; > return app->run(win); > } > > window_ext.h: > #ifndef WINDOW_EXT_H > #define WINDOW_EXT_H > > #include <gtkmm.h> > #include <iostream> > > class Overlay; > > class WindowExt : public Gtk::Window > { > private: > Cairo::RefPtr<Cairo::Region> shape; > > public: > void grab_keyboard(Glib::RefPtr<Gdk::Window> dest) > { > Glib::RefPtr<Gdk::Display> display = get_display(); > Glib::RefPtr<Gdk::DeviceManager> deviceM = > display->get_device_manager(); > > std::vector< Glib::RefPtr<Gdk::Device> >devices = > deviceM->list_devices( Gdk::DEVICE_TYPE_MASTER ); > > std::vector< Glib::RefPtr<Gdk::Device> >::iterator it; > > for(it = devices.begin(); it != devices.end(); ++it) > { > for(int grab = Gdk::GRAB_NOT_VIEWABLE; grab == > Gdk::GRAB_NOT_VIEWABLE;) > { > grab = (*it)->grab( > dest, Gdk::OWNERSHIP_NONE, true, > Gdk::ALL_EVENTS_MASK, GDK_CURRENT_TIME > ); > } > } > } > > WindowExt(Gtk::WindowType type=Gtk::WINDOW_TOPLEVEL) : Window(type) {} > > virtual ~WindowExt(){} > }; > > #endif > _______________________________________________ > gtk-app-devel-list mailing list > gtk-app-devel-list@gnome.org > https://mail.gnome.org/mailman/listinfo/gtk-app-devel-list _______________________________________________ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
