fixed handling of jumping to primary when screen saver starts

and back to secondary when it stops.  also now redirecting
keyboard input to root window when screen saver starts;  this
allows the user to type in the lock dialog and also effectively
discards any input used to deactivate the screen saver.

server/CMSWindowsPrimaryScreen.cpp

@@ -165,7 +165,7 @@ CMSWindowsPrimaryScreen::close()
 }
 
 void
-CMSWindowsPrimaryScreen::enter(SInt32 x, SInt32 y)
+CMSWindowsPrimaryScreen::enter(SInt32 x, SInt32 y, bool forScreenSaver)
 {
 	log((CLOG_INFO "entering primary at %d,%d", x, y));
 	assert(m_active == true);
@@ -174,7 +174,9 @@ CMSWindowsPrimaryScreen::enter(SInt32 x, SInt32 y)
 	enterNoWarp();
 
 	// warp to requested location
-	warpCursor(x, y);
+	if (!forScreenSaver) {
+		warpCursor(x, y);
+	}
 }
 
 bool

server/CMSWindowsPrimaryScreen.h

@@ -19,7 +19,7 @@ public:
 	virtual void		stop();
 	virtual void		open(CServer*);
 	virtual void		close();
-	virtual void		enter(SInt32 xAbsolute, SInt32 yAbsolute);
+	virtual void		enter(SInt32 xAbsolute, SInt32 yAbsolute, bool);
 	virtual bool		leave();
 	virtual void		onConfigure();
 	virtual void		warpCursor(SInt32 xAbsolute, SInt32 yAbsolute);

server/CServer.cpp

@@ -588,7 +588,7 @@ CServer::onMouseMovePrimaryNoLock(SInt32 x, SInt32 y)
 	}
 
 	// switch screen
-	switchScreen(newScreen, x, y);
+	switchScreen(newScreen, x, y, false);
 	return true;
 }
 
@@ -692,7 +692,7 @@ CServer::onMouseMoveSecondaryNoLock(SInt32 dx, SInt32 dy)
 
 	// otherwise screen screens
 	else {
-		switchScreen(newScreen, m_x, m_y);
+		switchScreen(newScreen, m_x, m_y, false);
 	}
 }
 
@@ -723,11 +723,7 @@ CServer::onScreenSaver(bool activated)
 
 		// jump to primary screen
 		if (m_active != m_primaryInfo) {
-// FIXME -- should have separate "center" pixel reported by screen
-			m_x = m_primaryInfo->m_x + (m_primaryInfo->m_w >> 1);
-			m_y = m_primaryInfo->m_y + (m_primaryInfo->m_h >> 1);
-			m_active = m_primaryInfo;
-			m_primary->enter(m_x, m_y);
+			switchScreen(m_primaryInfo, 0, 0, true);
 		}
 	}
 	else {
@@ -752,8 +748,8 @@ CServer::onScreenSaver(bool activated)
 				m_ySaver = screen->m_y + screen->m_h - screen->m_zoneSize - 1;
 			}
 
-			// now jump
-			switchScreen(screen, m_xSaver, m_ySaver);
+			// jump
+			switchScreen(screen, m_xSaver, m_ySaver, false);
 		}
 
 		// reset state
@@ -794,7 +790,7 @@ CServer::isLockedToScreenNoLock() const
 }
 
 void
-CServer::switchScreen(CScreenInfo* dst, SInt32 x, SInt32 y)
+CServer::switchScreen(CScreenInfo* dst, SInt32 x, SInt32 y, bool screenSaver)
 {
 	assert(dst != NULL);
 	assert(x >= dst->m_x && y >= dst->m_y);
@@ -840,7 +836,7 @@ CServer::switchScreen(CScreenInfo* dst, SInt32 x, SInt32 y)
 
 		// enter new screen
 		if (m_active->m_protocol == NULL) {
-			m_primary->enter(x, y);
+			m_primary->enter(x, y, screenSaver);
 		}
 		else {
 			m_active->m_protocol->sendEnter(x, y, m_seqNum,
@@ -1621,20 +1617,24 @@ CServer::removeConnection(const CString& name)
 	assert(index != m_screens.end());
 
 	// if this is active screen then we have to jump off of it
-	if (m_active == index->second && m_active != m_primaryInfo) {
+	CScreenInfo* active = (m_activeSaver != NULL) ? m_activeSaver : m_active;
+	if (active == index->second && active != m_primaryInfo) {
 		// record new position (center of primary screen)
 // FIXME -- should have separate "center" pixel reported by screen
 		m_x = m_primaryInfo->m_x + (m_primaryInfo->m_w >> 1);
 		m_y = m_primaryInfo->m_y + (m_primaryInfo->m_h >> 1);
 
 		// don't notify active screen since it probably already disconnected
-		log((CLOG_INFO "jump from \"%s\" to \"%s\" at %d,%d", m_active->m_name.c_str(), m_primaryInfo->m_name.c_str(), m_x, m_y));
+		log((CLOG_INFO "jump from \"%s\" to \"%s\" at %d,%d", active->m_name.c_str(), m_primaryInfo->m_name.c_str(), m_x, m_y));
 
 		// cut over
 		m_active = m_primaryInfo;
 
-		// enter new screen
-		m_primary->enter(m_x, m_y);
+		// enter new screen (unless we already have because of the
+		// screen saver)
+		if (m_activeSaver == NULL) {
+			m_primary->enter(m_x, m_y, false);
+		}
 	}
 
 	// if this screen had the cursor when the screen saver activated

server/CServer.h

@@ -137,7 +137,8 @@ private:
 	bool				isLockedToScreenNoLock() const;
 
 	// change the active screen
-	void				switchScreen(CScreenInfo*, SInt32 x, SInt32 y);
+	void				switchScreen(CScreenInfo*,
+							SInt32 x, SInt32 y, bool forScreenSaver);
 
 	// lookup neighboring screen
 	CScreenInfo*		getNeighbor(CScreenInfo*, CConfig::EDirection) const;

server/CXWindowsPrimaryScreen.cpp

@@ -323,20 +323,27 @@ CXWindowsPrimaryScreen::close()
 }
 
 void
-CXWindowsPrimaryScreen::enter(SInt32 x, SInt32 y)
+CXWindowsPrimaryScreen::enter(SInt32 x, SInt32 y, bool forScreenSaver)
 {
-	log((CLOG_INFO "entering primary at %d,%d", x, y));
+	log((CLOG_INFO "entering primary at %d,%d%s", x, y, forScreenSaver ? " for screen saver" : ""));
 	assert(m_active == true);
 	assert(m_window != None);
 
 	CDisplayLock display(this);
 
 	// warp to requested location
-	XWarpPointer(display, None, m_window, 0, 0, 0, 0, x, y);
+	if (!forScreenSaver) {
+		XWarpPointer(display, None, m_window, 0, 0, 0, 0, x, y);
+	}
 
 	// unmap the grab window.  this also ungrabs the mouse and keyboard.
 	XUnmapWindow(display, m_window);
 
+	// redirect input to root window
+	if (forScreenSaver) {
+		XSetInputFocus(display, PointerRoot, PointerRoot, CurrentTime);
+	}
+
 	// remove all input events for grab window
 	XEvent event;
 	while (XCheckWindowEvent(display, m_window,

server/CXWindowsPrimaryScreen.h

@@ -15,7 +15,7 @@ public:
 	virtual void		stop();
 	virtual void		open(CServer*);
 	virtual void		close();
-	virtual void		enter(SInt32 xAbsolute, SInt32 yAbsolute);
+	virtual void		enter(SInt32 xAbsolute, SInt32 yAbsolute, bool);
 	virtual bool		leave();
 	virtual void		onConfigure();
 	virtual void		warpCursor(SInt32 xAbsolute, SInt32 yAbsolute);

synergy/IPrimaryScreen.h

@@ -41,9 +41,11 @@ public:
 	// called when the user navigates back to the primary screen.
 	// warp the cursor to the given coordinates, unhide it, and
 	// ungrab the input devices.  every call to enter has a matching
-	// call to leave() which preceeds it, however the screen can
+	// call to leave() which preceeds it, however the screen should
 	// assume an implicit call to enter() in the call to open().
-	virtual void		enter(SInt32 xAbsolute, SInt32 yAbsolute) = 0;
+	// if warpCursor is false then do not warp the mouse.
+	virtual void		enter(SInt32 xAbsolute, SInt32 yAbsolute,
+							bool forScreenSaver) = 0;
 
 	// called when the user navigates off the primary screen.  hide
 	// the cursor and grab exclusive access to the input devices.