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livetrax/gtk2_ardour/screensaver.cc

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/*
* Copyright (C) 2019 Robin Gareus <robin@gareus.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "utils.h"
#ifdef PLATFORM_WINDOWS
/* http://www.blackwasp.co.uk/DisableScreensaver.aspx */
#include <windows.h>
void
ARDOUR_UI_UTILS::inhibit_screensaver (bool inhibit)
{
if (inhibit) {
SetThreadExecutionState (ES_DISPLAY_REQUIRED | ES_SYSTEM_REQUIRED | ES_CONTINUOUS);
} else {
SetThreadExecutionState (ES_CONTINUOUS);
}
}
#elif defined __APPLE__
#include <IOKit/pwr_mgt/IOPMLib.h>
static IOReturn success = kIOReturnError;
static IOPMAssertionID assertion_id;
void
ARDOUR_UI_UTILS::inhibit_screensaver (bool inhibit)
{
if (inhibit == (success == kIOReturnSuccess)) {
return;
}
if (inhibit) {
/* kIOPMAssertionTypeNoDisplaySleep prevents display sleep,
* kIOPMAssertionTypeNoIdleSleep prevents idle sleep
*/
#ifdef __ppc__ /* OS X 10.5 compat API */
success = IOPMAssertionCreate (kIOPMAssertionTypeNoDisplaySleep, kIOPMAssertionLevelOn, &assertion_id);
#else
static const CFStringRef name = CFSTR("Ardour DAW");
success = IOPMAssertionCreateWithName (kIOPMAssertionTypeNoDisplaySleep, kIOPMAssertionLevelOn, name, &assertion_id);
#endif
} else {
if (kIOReturnSuccess == IOPMAssertionRelease (assertion_id)) {
success = kIOReturnError; // mark as inactive
}
}
}
#else /* Linux / X11 */
#include "ardour_ui.h"
#include "ardour/system_exec.h"
#include <gdk/gdkx.h>
static sigc::connection glib_timer;
static bool
reset_screensaver_timer ()
{
Display* d = XOpenDisplay (NULL);
if (!d) {
return false;
}
XResetScreenSaver (d);
XCloseDisplay (d);
return true;
}
void
ARDOUR_UI_UTILS::inhibit_screensaver (bool inhibit)
{
glib_timer.disconnect ();
if (inhibit) {
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