Made event selection a little more robust. Also fixed failure

to marshall clipboard data when updating primary clipboards.

client/CXWindowsSecondaryScreen.cpp

@@ -319,7 +319,7 @@ void					CXWindowsSecondaryScreen::onOpenDisplay()
 	// as the cursor enters the screen or the display's real cursor is
 	// moved.
 	XSetWindowAttributes attr;
-	attr.event_mask            = LeaveWindowMask | PropertyChangeMask;
+	attr.event_mask            = LeaveWindowMask;
 	attr.do_not_propagate_mask = 0;
 	attr.override_redirect     = True;
 	attr.cursor                = createBlankCursor();
@@ -349,6 +349,14 @@ void					CXWindowsSecondaryScreen::onCloseDisplay()
 	m_window = None;
 }
 
+long					CXWindowsSecondaryScreen::getEventMask(Window w) const
+{
+	if (w == m_window)
+		return LeaveWindowMask;
+	else
+		return NoEventMask;
+}
+
 void					CXWindowsSecondaryScreen::leaveNoLock(Display* display)
 {
 	assert(display  != NULL);

client/CXWindowsSecondaryScreen.h

@@ -34,6 +34,7 @@ class CXWindowsSecondaryScreen : public CXWindowsScreen, public ISecondaryScreen
 	// CXWindowsScreen overrides
 	virtual void		onOpenDisplay();
 	virtual void		onCloseDisplay();
+	virtual long		getEventMask(Window) const;
 
   private:
 	struct KeyCodeMask {

server/CServer.cpp

@@ -950,6 +950,8 @@ void					CServer::updatePrimaryClipboard(ClipboardID id)
 		// if clipboard changed then other screens have an
 		// out-of-date clipboard.
 		if (time != clipboard.m_clipboard.getTime()) {
+			log((CLOG_DEBUG "clipboard %d changed", id));
+			clipboard.m_clipboardData = clipboard.m_clipboard.marshall();
 			clearGotClipboard(id);
 			m_primaryInfo->m_gotClipboard[id] = true;
 		}

server/CXWindowsPrimaryScreen.cpp

@@ -406,6 +406,17 @@ void					CXWindowsPrimaryScreen::onCloseDisplay()
 	m_window = None;
 }
 
+long					CXWindowsPrimaryScreen::getEventMask(Window w) const
+{
+	if (w == m_window)
+		return PointerMotionMask |// PointerMotionHintMask |
+								 ButtonPressMask | ButtonReleaseMask |
+								 KeyPressMask | KeyReleaseMask |
+								 KeymapStateMask;
+	else
+		return PointerMotionMask | SubstructureNotifyMask;
+}
+
 void					CXWindowsPrimaryScreen::selectEvents(
 								Display* display, Window w) const
 {
@@ -419,8 +430,7 @@ void					CXWindowsPrimaryScreen::selectEvents(
 		return;
 
 	// select events of interest
-	XSelectInput(display, w, PointerMotionMask | SubstructureNotifyMask |
-								PropertyChangeMask);
+	XSelectInput(display, w, PointerMotionMask | SubstructureNotifyMask);
 
 	// recurse on child windows
 	Window rw, pw, *cw;

server/CXWindowsPrimaryScreen.h

@@ -29,6 +29,7 @@ class CXWindowsPrimaryScreen : public CXWindowsScreen, public IPrimaryScreen {
 	// CXWindowsScreen overrides
 	virtual void		onOpenDisplay();
 	virtual void		onCloseDisplay();
+	virtual long		getEventMask(Window) const;
 
   private:
 	void				selectEvents(Display*, Window) const;

synergy/CXWindowsScreen.cpp

@@ -672,7 +672,7 @@ void					CXWindowsScreen::processClipboardRequest(
 				clipboard.m_requests.erase(index);
 				delete list;
 			}
-			XSelectInput(m_display, requestor, NoEventMask);
+			XSelectInput(m_display, requestor, getEventMask(requestor));
 		}
 
 		// request has been serviced
@@ -765,9 +765,12 @@ bool					CXWindowsScreen::sendClipboardData(
 			list->push_back(request);
 
 			// start watching requestor for property changes and
-			// destruction
-			XSelectInput(m_display, requestor, StructureNotifyMask |
-												PropertyChangeMask);
+			// destruction, in addition to other events required by
+			// the subclass.
+			XSelectInput(m_display, requestor,
+								getEventMask(requestor) |
+									StructureNotifyMask |
+									PropertyChangeMask);
 
 			// FIXME -- handle Alloc errors (by returning false)
 			// set property to INCR
@@ -968,6 +971,11 @@ Time					CXWindowsScreen::getCurrentTime(Window window) const
 Time					CXWindowsScreen::getCurrentTimeNoLock(
 								Window window) const
 {
+	// select property events on window
+	// note -- this will break clipboard transfer if used on a requestor
+	// window, so don't do that.
+	XSelectInput(m_display, window, getEventMask(window) | PropertyChangeMask);
+
 	// do a zero-length append to get the current time
 	unsigned char dummy;
 	XChangeProperty(m_display, window, m_atomSynergyTime,
@@ -992,6 +1000,9 @@ Time					CXWindowsScreen::getCurrentTimeNoLock(
 	assert(xevent.xproperty.window == window);
 	assert(xevent.xproperty.atom   == m_atomSynergyTime);
 
+	// restore event mask
+	XSelectInput(m_display, window, getEventMask(window));
+
 	return xevent.xproperty.time;
 }
 

synergy/CXWindowsScreen.h

@@ -101,6 +101,9 @@ class CXWindowsScreen {
 	// called by closeDisplay() to 
 	virtual void		onCloseDisplay() = 0;
 
+	// get the X event mask required by the subclass for the given window
+	virtual long		getEventMask(Window) const = 0;
+
   private:
 	struct CPropertyNotifyInfo {
 	  public: