Added global configuration option to disable screen saver

synchronization.

lib/platform/CMSWindowsSecondaryScreen.cpp

@@ -300,13 +300,13 @@ CMSWindowsSecondaryScreen::mouseWheel(SInt32 delta)
 void
 CMSWindowsSecondaryScreen::resetOptions()
 {
-	// no options
+	CSecondaryScreen::resetOptions();
 }
 
 void
-CMSWindowsSecondaryScreen::setOptions(const COptionsList& /*options*/)
+CMSWindowsSecondaryScreen::setOptions(const COptionsList& options)
 {
-	// no options
+	CSecondaryScreen::setOptions(options);
 }
 
 IScreen*

lib/platform/CXWindowsSecondaryScreen.cpp

@@ -287,6 +287,7 @@ CXWindowsSecondaryScreen::resetOptions()
 {
 	m_numLockHalfDuplex  = false;
 	m_capsLockHalfDuplex = false;
+	CSecondaryScreen::resetOptions();
 }
 
 void
@@ -302,6 +303,7 @@ CXWindowsSecondaryScreen::setOptions(const COptionsList& options)
 			LOG((CLOG_DEBUG1 "half-duplex num-lock %s", m_numLockHalfDuplex ? "on" : "off"));
 		}
 	}
+	CSecondaryScreen::setOptions(options);
 }
 
 IScreen*

lib/server/CConfig.cpp

@@ -640,6 +640,9 @@ CConfig::getOptionName(OptionID id)
 	if (id == kOptionScreenSwitchTwoTap) {
 		return "switchDoubleTap";
 	}
+	if (id == kOptionScreenSaverSync) {
+		return "screenSaverSync";
+	}
 	return NULL;
 }
 
@@ -647,7 +650,8 @@ CString
 CConfig::getOptionValue(OptionID id, OptionValue value)
 {
 	if (id == kOptionHalfDuplexCapsLock ||
-		id == kOptionHalfDuplexNumLock) {
+		id == kOptionHalfDuplexNumLock ||
+		id == kOptionScreenSaverSync) {
 		return (value != 0) ? "true" : "false";
 	}
 	if (id == kOptionModifierMapForShift ||
@@ -791,6 +795,9 @@ CConfig::readSectionOptions(std::istream& s)
 		else if (name == "switchDoubleTap") {
 			addOption("", kOptionScreenSwitchTwoTap, parseInt(value));
 		}
+		else if (name == "screenSaverSync") {
+			addOption("", kOptionScreenSaverSync, parseBoolean(value));
+		}
 		else {
 			throw XConfigRead("unknown argument");
 		}

lib/synergy/CSecondaryScreen.cpp

@@ -23,8 +23,10 @@
 //
 
 CSecondaryScreen::CSecondaryScreen() :
+	m_remoteReady(false),
 	m_active(false),
-	m_toggleKeys(0)
+	m_toggleKeys(0),
+	m_screenSaverSync(true)
 {
 	// do nothing
 }
@@ -106,14 +108,23 @@ CSecondaryScreen::remoteControl()
 	// update keyboard state
 	updateKeys();
 
-	// disable the screen saver
-	getScreen()->openScreensaver(false);
-
-	// hide the cursor
+	// now remote ready.  fake being active for call to leave().
+	bool screenSaverSync;
 	{
 		CLock lock(&m_mutex);
-		m_active = true;
+		m_remoteReady = true;
+		m_active      = true;
+
+		// copy screen saver synchronization state
+		screenSaverSync = m_screenSaverSync;
 	}
+
+	// disable the screen saver if synchronization is enabled
+	if (screenSaverSync) {
+		getScreen()->openScreensaver(false);
+	}
+
+	// hide the cursor
 	leave();
 }
 
@@ -121,6 +132,10 @@ void
 CSecondaryScreen::localControl()
 {
 	getScreen()->closeScreensaver();
+
+	// not remote ready anymore
+	CLock lock(&m_mutex);
+	m_remoteReady = false;
 }
 
 void
@@ -204,7 +219,71 @@ CSecondaryScreen::grabClipboard(ClipboardID id)
 void
 CSecondaryScreen::screensaver(bool activate)
 {
-	getScreen()->screensaver(activate);
+	// get screen saver synchronization flag
+	bool screenSaverSync;
+	{
+		CLock lock(&m_mutex);
+		screenSaverSync = m_screenSaverSync;
+	}
+
+	// activate/deactivation screen saver iff synchronization enabled
+	if (screenSaverSync) {
+LOG((CLOG_INFO "screensaver(%s)", activate ? "on" : "off"));
+		getScreen()->screensaver(activate);
+	}
+else {
+LOG((CLOG_INFO "screensaver(%s) ignored", activate ? "on" : "off"));
+}
+}
+
+void
+CSecondaryScreen::resetOptions()
+{
+	// set screen saver synchronization flag and see if we need to
+	// update the screen saver synchronization.
+	bool screenSaverSyncOn;
+	{
+		CLock lock(&m_mutex);
+		screenSaverSyncOn = (!m_screenSaverSync && m_remoteReady);
+		m_screenSaverSync = true;
+	}
+
+	// update screen saver synchronization
+	if (screenSaverSyncOn) {
+		getScreen()->openScreensaver(false);
+	}
+}
+
+void
+CSecondaryScreen::setOptions(const COptionsList& options)
+{
+	// update options
+	bool updateScreenSaverSync = false;
+	bool oldScreenSaverSync;
+	{
+		CLock lock(&m_mutex);
+		oldScreenSaverSync = m_screenSaverSync;
+		for (UInt32 i = 0, n = options.size(); i < n; i += 2) {
+			if (options[i] == kOptionScreenSaverSync) {
+				updateScreenSaverSync = true;
+				m_screenSaverSync     = (options[i + 1] != 0);
+				LOG((CLOG_DEBUG1 "screen saver synchronization %s", m_screenSaverSync ? "on" : "off"));
+			}
+		}
+		if (!m_remoteReady || oldScreenSaverSync == m_screenSaverSync) {
+			updateScreenSaverSync = false;
+		}
+	}
+
+	// update screen saver synchronization
+	if (updateScreenSaverSync) {
+		if (oldScreenSaverSync) {
+			getScreen()->closeScreensaver();
+		}
+		else {
+			getScreen()->openScreensaver(false);
+		}
+	}
 }
 
 bool

lib/synergy/CSecondaryScreen.h

@@ -177,16 +177,18 @@ public:
 
 	//! Notify of options changes
 	/*!
-	Reset all options to their default values.
+	Reset all options to their default values.  Overrides should call
+	the superclass's method.
 	*/
-	virtual void		resetOptions() = 0;
+	virtual void		resetOptions();
 
 	//! Notify of options changes
 	/*!
 	Set options to given values.  Ignore unknown options and don't
-	modify our options that aren't given in \c options.
+	modify our options that aren't given in \c options.  Overrides
+	should call the superclass's method.
 	*/
-	virtual void		setOptions(const COptionsList& options) = 0;
+	virtual void		setOptions(const COptionsList& options);
 
 	//@}
 	//! @name accessors
@@ -372,11 +374,17 @@ protected:
 private:
 	CMutex				m_mutex;
 
+	// true if ready for remote control
+	bool				m_remoteReady;
+
 	// m_active is true if this screen has been entered
 	bool				m_active;
 
 	// the toggle key state when this screen was last entered
 	KeyModifierMask		m_toggleKeys;
+
+	// true if screen saver should be synchronized to server
+	bool				m_screenSaverSync;
 };
 
 #endif

lib/synergy/OptionTypes.h

@@ -53,6 +53,7 @@ static const OptionID	kOptionModifierMapForSuper   = OPTION_CODE("MMFR");
 static const OptionID	kOptionHeartbeat             = OPTION_CODE("HART");
 static const OptionID	kOptionScreenSwitchDelay     = OPTION_CODE("SSWT");
 static const OptionID	kOptionScreenSwitchTwoTap    = OPTION_CODE("SSTT");
+static const OptionID	kOptionScreenSaverSync       = OPTION_CODE("SSVR");
 //@}
 
 #undef OPTION_CODE