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application: Add a query-end signal

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This lets us take just-in-time inhibitors, and makes
the session support a little more real.
This commit is contained in:
Matthias Clasen 2019-01-21 20:45:15 -05:00
parent 65e9d71da5
commit d006ee65f5
2 changed files with 20 additions and 0 deletions
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3
gtk/gtkapplication-dbus.c
View File

@ -97,6 +97,7 @@ client_proxy_signal (GDBusProxy *proxy,
if (g_str_equal (signal_name, "QueryEndSession"))
{
g_debug ("Received QueryEndSession");
g_signal_emit_by_name (dbus->impl.application, "query-end");
send_quit_response (dbus, TRUE, NULL);
}
else if (g_str_equal (signal_name, "CancelEndSession"))
@ -237,6 +238,8 @@ screensaver_signal_portal (GDBusConnection *connection,
}
else if (session_state == QUERY_END)
{
g_signal_emit_by_name (dbus->impl.application, "query-end");
g_dbus_proxy_call (dbus->inhibit_proxy,
"QueryEndResponse",
g_variant_new ("(o)", dbus->session_id),

17
gtk/gtkapplication.c
View File

@ -129,6 +129,7 @@
enum {
WINDOW_ADDED,
WINDOW_REMOVED,
QUERY_END,
LAST_SIGNAL
};
@ -653,6 +654,22 @@ gtk_application_class_init (GtkApplicationClass *class)
g_cclosure_marshal_VOID__OBJECT,
G_TYPE_NONE, 1, GTK_TYPE_WINDOW);
/**
* GtkApplication::query-end:
* @application: the #GtkApplication which emitted the signal
*
* Emitted when the session manager is about to end the session, only
* if #GtkApplication::register-session is %TRUE. Applications can
* connect to this signal and call gtk_application_inhibit() with
* %GTK_APPLICATION_INHIBIT_LOGOUT to delay the end of the session
* until state has been saved.
*/
gtk_application_signals[QUERY_END] =
g_signal_new (I_("query-end"), GTK_TYPE_APPLICATION, G_SIGNAL_RUN_FIRST,
0,
NULL, NULL,
NULL,
G_TYPE_NONE, 0);
/**
* GtkApplication:register-session:
*