1 files changed, 36 insertions, 0 deletions
diff --git a/SwifTools/Idle/XSSIdleQuerier.cpp b/SwifTools/Idle/XSSIdleQuerier.cpp
new file mode 100644
index 0000000..2259620
--- /dev/null
+++ b/SwifTools/Idle/XSSIdleQuerier.cpp
@@ -0,0 +1,36 @@
+#include "SwifTools/Idle/XSSIdleQuerier.h"
+
+#include <cassert>
+#include <iostream>
+
+namespace Swift {
+
+XSSIdleQuerier::XSSIdleQuerier() : display(NULL), info(NULL) {
+	display = XOpenDisplay(NULL);
+	assert(display);
+	rootWindow = DefaultRootWindow(display);
+	int event, error;
+	available = XScreenSaverQueryExtension(display, &event, &error);
+	if (available) {
+		info = XScreenSaverAllocInfo();
+	}
+	else {
+		std::cerr << "Warning: XScreenSaver extension not found. Idle time detection will not work." << std::endl;
+	}
+}
+
+XSSIdleQuerier::~XSSIdleQuerier() {
+	XFree(info);
+}
+
+int XSSIdleQuerier::getIdleTimeSeconds() {
+	if (available) {
+		XScreenSaverQueryInfo(display, rootWindow, info);
+		return info->idle / 1000;
+	}
+	else {
+		return 0;
+	}
+}
+
+}