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Update method to disable X11 screensaver

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On modern systems `xdg-screensaver reset` does not necessarily
reset the timer. It depends on DPMS, and according to spec turns off
the screensaver (unlock the screen), via `xset dpms force on`.

Explicit window suspend/resume make use of DBus
org.freedesktop.ScreenSaver.Inhibit, which is not be supported
but all systems, so we fall back to good old `XResetScreenSaver`
which does reset the activation timer.
This commit is contained in:
Robin Gareus 2022-09-04 17:32:16 +02:00
parent 1eab84b7da
commit 72faae2ba9
Signed by: rgareus
GPG Key ID: A090BCE02CF57F04
1 changed files with 39 additions and 15 deletions
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54
gtk2_ardour/screensaver.cc
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@ -65,27 +65,23 @@ ARDOUR_UI_UTILS::inhibit_screensaver (bool inhibit)
#else /* Linux / X11 */
#include <gtkmm.h>
#include "ardour_ui.h"
#include "ardour/system_exec.h"
#include <gdk/gdkx.h>
static sigc::connection glib_timer;
static bool
xdg_screensaver_reset ()
reset_screensaver_timer ()
{
char** args = (char**) malloc (5 * sizeof(char*));
args[0] = strdup ("/bin/sh");
args[1] = strdup ("-c");
args[2] = strdup ("xdg-screensaver");
args[3] = strdup ("reset");
args[4] = 0;
ARDOUR::SystemExec xdg_exec ("/bin/sh", args);
if (xdg_exec.start ()) {
Display* d = XOpenDisplay (NULL);
if (!d) {
return false;
}
xdg_exec.wait ();
return true; /* keep going */
XResetScreenSaver (d);
XCloseDisplay (d);
return true;
}
void
@ -93,9 +89,37 @@ ARDOUR_UI_UTILS::inhibit_screensaver (bool inhibit)
{
glib_timer.disconnect ();
if (inhibit) {
xdg_screensaver_reset ();
glib_timer = Glib::signal_timeout().connect_seconds (sigc::ptr_fun (&xdg_screensaver_reset), 45, Glib::PRIORITY_DEFAULT_IDLE);
reset_screensaver_timer ();
glib_timer = Glib::signal_timeout().connect_seconds (sigc::ptr_fun (&reset_screensaver_timer), 45, Glib::PRIORITY_DEFAULT_IDLE);
}
#if 0
Glib::RefPtr<Gdk::Window> win (ARDOUR_UI::instance()->main_window ().get_window ());
if (!win) {
return;
}
XID xid = GDK_WINDOW_XWINDOW ((win->gobj()));
char tmp[32];
snprintf (tmp, sizeof (tmp), "%lu", xid);
char** args = (char**) malloc (6 * sizeof(char*));
args[0] = strdup ("/bin/sh");
args[1] = strdup ("-c");
args[2] = strdup ("xdg-screensaver");
if (inhibit) {
args[3] = strdup ("suspend");
} else {
args[3] = strdup ("resume");
}
args[4] = strdup (tmp);
args[5] = 0;
ARDOUR::SystemExec xdg_exec ("/bin/sh", args);
if (!xdg_exec.start ()) {
xdg_exec.wait ();
}
#endif
}
#endif