Feng Shu wrote 1 years ago
(name . guix-bug)(address . bug-guix@gnu.org)
87v88kglrs.fsf@163.com
Toggle quote (5 lines)
> It works fine, but there are a few gotchas:
> 1. The session selection menu doesn't show the items. I don't know why.
> Perhaps a regresssion with newer GTK+.
I use below code to test:
1. lightdm-gtk-greeter code:
Toggle quote (39 lines)
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >
> /* Session menu */ >
> g_debug ("XXXX: Call lightdm_get_sessions functions from main"); >
> items = lightdm_get_sessions (); >
> g_debug ("XXXX: Session menuitem create start."); >
> if (gtk_widget_get_visible (session_menuitem)) >
> { >
> GSList *sessions = NULL; >
> >
> if (gtk_icon_theme_has_icon (icon_theme, "document-properties-symbolic")) >
> session_badge = gtk_image_new_from_icon_name ("document-properties-symbolic", GTK_ICON_SIZE_MENU); >
> else >
> session_badge = gtk_image_new_from_icon_name ("document-properties", GTK_ICON_SIZE_MENU); >
> gtk_widget_show (session_badge); >
> gtk_container_add (GTK_CONTAINER (session_menuitem), session_badge); >
> >
> items = lightdm_get_sessions (); >
> for (item = items; item; item = item->next) >
> { >
> LightDMSession *session = item->data; >
> GtkWidget *radiomenuitem; >
> >
> g_debug ("XXXX: Session items: %s", lightdm_session_get_key (session)); >
> >
> radiomenuitem = gtk_radio_menu_item_new_with_label (sessions, lightdm_session_get_name (session)); >
> g_object_set_data (G_OBJECT (radiomenuitem), SESSION_DATA_KEY, (gpointer) lightdm_session_get_key (session)); >
> sessions = gtk_radio_menu_item_get_group (GTK_RADIO_MENU_ITEM (radiomenuitem)); >
> g_signal_connect (G_OBJECT (radiomenuitem), "activate", G_CALLBACK (session_selected_cb), NULL); >
> gtk_menu_shell_append (GTK_MENU_SHELL (session_menu), radiomenuitem); >
> gtk_widget_show (GTK_WIDGET (radiomenuitem)); >
> } >
> >
> set_session (NULL); >
> } >
> >
> g_debug ("XXXX: Session menuitem create stop."); >
> >
> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >
2. liblightdm_gobject code:
Toggle quote (20 lines)
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >
> /** >
> * lightdm_get_sessions: >
> * >
> * Get the available sessions. >
> * >
> * Return value: (element-type LightDMSession) (transfer none): A list of #LightDMSession >
> **/ >
> GList * >
> lightdm_get_sessions (void) >
> { >
> g_debug ("Run lightdm_get_session function.");
> update_sessions (); >
> return local_sessions; >
> } >
> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >
In my debian machine, it will show the below log, and I find that
lightdm_get_session will be called successfully.
Toggle quote (27 lines)
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >
> DEBUG-Message: 10:51:53.859: XXXX: Call lightdm_get_sessions functions from main >
> DEBUG-Message: 10:51:53.859: Run lightdm_get_session function. >
> DEBUG-Message: 10:51:53.859: Sessions_dir /usr/share/lightdm/sessions:/usr/share/xsessions:/usr/share/wayland-sessions >
> DEBUG-Message: 10:51:53.859: Run lightdm_session_class_init. >
> DEBUG-Message: 10:51:53.859: Run lightdm_session_init. >
> DEBUG-Message: 10:51:53.859: Loaded session /usr/share/xsessions/lightdm-xsession.desktop (Default Xsession, ) >
> DEBUG-Message: 10:51:53.860: Run lightdm_session_init. >
> DEBUG-Message: 10:51:53.860: Loaded session /usr/share/xsessions/xfce.desktop (Xfce 会话, 使用此会话将 Xfce 作为您的桌面环境运行) >
> DEBUG-Message: 10:51:53.860: Run lightdm_session_init. >
> DEBUG-Message: 10:51:53.860: Loaded session /usr/share/xsessions/icewm-session.desktop (IceWM Session, 此会话使您登录到 IceWM) >
> DEBUG-Message: 10:51:53.861: Run lightdm_session_init. >
> DEBUG-Message: 10:51:53.861: Loaded session /usr/share/wayland-sessions/weston.desktop (Weston, The reference Wayland server) >
> DEBUG-Message: 10:51:53.861: XXXX: Session menuitem create start. >
> DEBUG-Message: 10:51:53.864: Run lightdm_get_session function. >
> DEBUG-Message: 10:51:53.864: XXXX: Session items: lightdm-xsession >
> DEBUG-Message: 10:51:53.864: XXXX: Session items: icewm-session >
> DEBUG-Message: 10:51:53.864: XXXX: Session items: weston >
> DEBUG-Message: 10:51:53.864: XXXX: Session items: xfce >
> DEBUG-Message: 10:51:53.864: XXXX: Call lightdm_get_sessions functions from set_session, argument: (null) >
> DEBUG-Message: 10:51:53.864: Run lightdm_get_session function. >
> DEBUG-Message: 10:51:53.864: XXXX: Call lightdm_get_sessions functions from set_session, argument: xfce >
> DEBUG-Message: 10:51:53.864: Run lightdm_get_session function. >
> DEBUG-Message: 10:51:53.864: XXXX: Session menuitem create stop. >
> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >
But in guix, lightdm_get_sessions seem to not be called, for I can not
find string "Run lightdm_get_session function. " in log file, just like
the below:
Toggle quote (7 lines)
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >
> DEBUG-Message: 10:51:53.859: XXXX: Call lightdm_get_sessions functions from main >
> DEBUG-Message: 10:51:53.861: XXXX: Session menuitem create start. >
> DEBUG-Message: 10:51:53.864: XXXX: Session menuitem create stop. >
> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >
liblightdm-gobject shared library seem to be loaded, for when I remove this lib,
gtk-greeter will not show.
but why lightdm_get_sessions function do not be called while
liblightdm-gobject is loaded?
--