Feature to drag a file from Windows to Mac:

- On Mac client main thread is used for cocoa application in order to simulate drag.
- Send dragging file dir from Windows server to Mac client while dragging after switching screen.
- Dragging information sending is immature now (need to support multi files dragging in the future).
- Used Cocoa function to monitor dragg pasteboard.
- Changed Mac client to use another thread for event queue instead of the main thread.
- Change fileRecieveComplete to fileRecieveCompleted.

src/lib/base/CEventQueue.cpp

@@ -594,3 +594,9 @@ CEventQueue::CTimer::operator<(const CTimer& t) const
 {
 	return m_time < t.m_time;
 }
+
+void
+CEventQueue::cacheCurrentEventQueueRef()
+{
+	m_buffer->cacheCurrentEventQueueRef();
+}

src/lib/base/CEventQueue.h

@@ -60,6 +60,8 @@ public:
 	virtual CEvent::Type
 						getRegisteredType(const CString& name) const;
 	void*				getSystemTarget();
+	
+	void				cacheCurrentEventQueueRef();
 
 private:
 	UInt32				saveEvent(const CEvent& event);

src/lib/base/CEventTypes.cpp

@@ -177,7 +177,7 @@ REGISTER_EVENT(IScreen, clipboardGrabbed)
 REGISTER_EVENT(IScreen, suspend)
 REGISTER_EVENT(IScreen, resume)
 REGISTER_EVENT(IScreen, fileChunkSending)
-REGISTER_EVENT(IScreen, fileRecieveComplete)
+REGISTER_EVENT(IScreen, fileRecieveCompleted)
 
 //
 // CIpcServer

src/lib/base/CEventTypes.h

@@ -629,7 +629,7 @@ public:
 		m_suspend(CEvent::kUnknown),
 		m_resume(CEvent::kUnknown),
 		m_fileChunkSending(CEvent::kUnknown),
-		m_fileRecieveComplete(CEvent::kUnknown) { }
+		m_fileRecieveCompleted(CEvent::kUnknown) { }
 
 	//! @name accessors
 	//@{
@@ -674,7 +674,7 @@ public:
 	CEvent::Type		fileChunkSending();
 
 	//! Completed receiving a file
-	CEvent::Type		fileRecieveComplete();
+	CEvent::Type		fileRecieveCompleted();
 
 	//@}
 		
@@ -685,5 +685,5 @@ private:
 	CEvent::Type		m_suspend;
 	CEvent::Type		m_resume;
 	CEvent::Type		m_fileChunkSending;
-	CEvent::Type		m_fileRecieveComplete;
+	CEvent::Type		m_fileRecieveCompleted;
 };

src/lib/base/CSimpleEventQueueBuffer.h

@@ -40,6 +40,7 @@ public:
 	virtual CEventQueueTimer*
 						newTimer(double duration, bool oneShot) const;
 	virtual void		deleteTimer(CEventQueueTimer*) const;
+	void				cacheCurrentEventQueueRef() { }
 
 private:
 	typedef std::deque<UInt32> CEventDeque;

src/lib/base/IEventQueue.h

@@ -176,6 +176,8 @@ public:
 	virtual CEvent::Type
 						registerTypeOnce(CEvent::Type& type,
 							const char* name) = 0;
+	
+	virtual void		cacheCurrentEventQueueRef() = 0;
 
 	//@}
 	//! @name accessors

src/lib/base/IEventQueueBuffer.h

@@ -66,6 +66,8 @@ public:
 	return at some future time if it's blocked waiting on an event.
 	*/
 	virtual bool		addEvent(UInt32 dataID) = 0;
+	
+	virtual	void		cacheCurrentEventQueueRef() = 0;
 
 	//@}
 	//! @name accessors

src/lib/client/CClient.cpp

@@ -85,10 +85,10 @@ CClient::CClient(IEventQueue* events,
 							this,
 							new TMethodEventJob<CClient>(this,
 								&CClient::handleFileChunkSending));
-	m_events->adoptHandler(m_events->forIScreen().fileRecieveComplete(),
+	m_events->adoptHandler(m_events->forIScreen().fileRecieveCompleted(),
 							this,
 							new TMethodEventJob<CClient>(this,
-								&CClient::handleFileRecieveComplete));
+								&CClient::handleFileRecieveCompleted));
 }
 
 CClient::~CClient()
@@ -711,17 +711,19 @@ CClient::handleFileChunkSending(const CEvent& event, void*)
 }
 
 void
-CClient::handleFileRecieveComplete(const CEvent& event, void*)
+CClient::handleFileRecieveCompleted(const CEvent& event, void*)
 {
-	onFileRecieveComplete();
+	onFileRecieveCompleted();
 }
 
 void
-CClient::onFileRecieveComplete()
+CClient::onFileRecieveCompleted()
 {
 	if (isReceivedFileSizeValid()) {
+		m_fileTransferDes = m_screen->getDropTarget();
 		if (!m_fileTransferDes.empty()) {
 			std::fstream file;
+			m_fileTransferDes.append("/").append(m_dragFileList.at(0));
 			file.open(m_fileTransferDes.c_str(), std::ios::out | std::ios::binary);
 			if (!file.is_open()) {
 				// TODO: file open failed
@@ -730,6 +732,9 @@ CClient::onFileRecieveComplete()
 			file.write(m_receivedFileData.c_str(), m_receivedFileData.size());
 			file.close();
 		}
+		else {
+			LOG((CLOG_ERR "drop file failed: drop target is empty"));
+		}
 	}
 }
 
@@ -752,6 +757,30 @@ CClient::fileChunkReceived(CString data)
 	m_receivedFileData += data;
 }
 
+void
+CClient::dragInfoReceived(UInt32 fileNum, CString data)
+{
+	CDragInformation::parseDragInfo(m_dragFileList, fileNum, data);
+	LOG((CLOG_DEBUG "drag information received"));
+	LOG((CLOG_DEBUG "total drag file number: %i", m_dragFileList.size()));
+
+	for(int i = 0; i < m_dragFileList.size(); ++i) {
+		LOG((CLOG_DEBUG2 "dragging file %i name: %s", i + 1, m_dragFileList.at(i).c_str()));
+	}
+	
+	if (m_dragFileList.size() == 1) {
+		m_dragFileExt = CDragInformation::getDragFileExtension(m_dragFileList.at(0));
+	}
+	else if (m_dragFileList.size() > 1) {
+		m_dragFileExt.clear();
+	}
+	else {
+		return;
+	}
+	
+	m_screen->startDraggingFiles(m_dragFileExt);
+}
+
 bool
 CClient::isReceivedFileSizeValid()
 {

src/lib/client/CClient.h

@@ -25,6 +25,7 @@
 #include "INode.h"
 #include "CCryptoOptions.h"
 #include "CEventTypes.h"
+#include "CDragInformation.h"
 
 class CEventQueueTimer;
 class CScreen;
@@ -100,7 +101,10 @@ public:
 
 	//! Received a chunk of file data
 	void				fileChunkReceived(CString data);
-	
+
+	//! Received drag information
+	void				dragInfoReceived(UInt32 fileNum, CString data);
+
 	//! Create a new thread and use it to send file to Server
 	void				sendFileToServer(const char* filename);
 
@@ -193,8 +197,8 @@ private:
 	void				handleSuspend(const CEvent& event, void*);
 	void				handleResume(const CEvent& event, void*);
 	void				handleFileChunkSending(const CEvent&, void*);
-	void				handleFileRecieveComplete(const CEvent&, void*);
-	void				onFileRecieveComplete();
+	void				handleFileRecieveCompleted(const CEvent&, void*);
+	void				onFileRecieveCompleted();
 
 public:
 	bool					m_mock;
@@ -223,6 +227,8 @@ private:
 	CString					m_receivedFileData;
 	CString					m_fileTransferSrc;
 	CString					m_fileTransferDes;
+	CDragFileList			m_dragFileList;
+	CString					m_dragFileExt;
 };
 
 #endif

src/lib/client/CServerProxy.cpp

@@ -301,6 +301,9 @@ CServerProxy::parseMessage(const UInt8* code)
 	else if (memcmp(code, kMsgDFileTransfer, 4) == 0) {
 		fileChunkReceived();
 	}
+	else if (memcmp(code, kMsgDDragInfo, 4) == 0) {
+		dragInfoReceived();
+	}
 
 	else if (memcmp(code, kMsgCClose, 4) == 0) {
 		// server wants us to hangup
@@ -865,7 +868,7 @@ void
 CServerProxy::fileChunkReceived()
 {
 	// parse
-	UInt8 mark;
+	UInt8 mark = 0;
 	CString content;
 	CProtocolUtil::readf(m_stream, kMsgDFileTransfer + 4, &mark, &content);
 
@@ -898,7 +901,7 @@ CServerProxy::fileChunkReceived()
 		break;
 
 	case kFileEnd:
-		m_events->addEvent(CEvent(m_events->forIScreen().fileRecieveComplete(), m_client));
+		m_events->addEvent(CEvent(m_events->forIScreen().fileRecieveCompleted(), m_client));
 		if (CLOG->getFilter() >= kDEBUG2) {
 			LOG((CLOG_DEBUG2 "file data transfer finished"));
 			m_elapsedTime += m_stopwatch.getTime();
@@ -911,6 +914,17 @@ CServerProxy::fileChunkReceived()
 	}
 }
 
+void
+CServerProxy::dragInfoReceived()
+{
+	// parse
+	UInt32 fileNum = 0;
+	CString content;
+	CProtocolUtil::readf(m_stream, kMsgDDragInfo + 4, &fileNum, &content);
+
+	m_client->dragInfoReceived(fileNum, content);
+}
+
 void
 CServerProxy::fileChunkSending(UInt8 mark, char* data, size_t dataSize)
 {

src/lib/client/CServerProxy.h

@@ -103,6 +103,7 @@ private:
 	void				queryInfo();
 	void				infoAcknowledgment();
 	void				fileChunkReceived();
+	void				dragInfoReceived();
 
 private:
 	typedef EResult (CServerProxy::*MessageParser)(const UInt8*);

src/lib/platform/CMSWindowsEventQueueBuffer.h

@@ -40,6 +40,8 @@ public:
 						newTimer(double duration, bool oneShot) const;
 	virtual void		deleteTimer(CEventQueueTimer*) const;
 
+	virtual	void		cacheCurrentEventQueueRef() {}
+
 private:
 	DWORD				m_thread;
 	UINT				m_userEvent;

src/lib/platform/CMSWindowsScreen.cpp

@@ -699,7 +699,7 @@ CMSWindowsScreen::fakeMouseButton(ButtonID id, bool press)
 }
 
 void
-CMSWindowsScreen::fakeMouseMove(SInt32 x, SInt32 y) const
+CMSWindowsScreen::fakeMouseMove(SInt32 x, SInt32 y)
 {
 	m_desks->fakeMouseMove(x, y);
 }

src/lib/platform/CMSWindowsScreen.h

@@ -88,7 +88,7 @@ public:
 
 	// ISecondaryScreen overrides
 	virtual void		fakeMouseButton(ButtonID id, bool press);
-	virtual void		fakeMouseMove(SInt32 x, SInt32 y) const;
+	virtual void		fakeMouseMove(SInt32 x, SInt32 y);
 	virtual void		fakeMouseRelativeMove(SInt32 dx, SInt32 dy) const;
 	virtual void		fakeMouseWheel(SInt32 xDelta, SInt32 yDelta) const;
 

src/lib/platform/CMakeLists.txt

@@ -70,6 +70,9 @@ elseif (APPLE)
 		COSXScreen.cpp
 		COSXScreenSaver.cpp
 		COSXScreenSaverUtil.m
+		COSXPasteboardPeeker.m
+		COSXDragSimulator.m
+		COSXDragView.m
 	)
 	
 elseif (UNIX)
@@ -110,9 +113,20 @@ if (UNIX)
 	)
 endif()
 
+if (APPLE)
+	list(APPEND inc
+		/System/Library/Frameworks
+	)
+endif()
+
 include_directories(${inc})
 add_library(platform STATIC ${src})
 
 if (UNIX)
 	target_link_libraries(platform io net ipc synergy ${libs})
 endif()
+
+if (APPLE)
+	FIND_LIBRARY(COCOA_LIBRARY Cocoa)
+	target_link_libraries(platform ${COCOA_LIBRARY})
+endif()

src/lib/platform/COSXDragSimulator.h

@@ -0,0 +1,32 @@
+/*
+ * synergy -- mouse and keyboard sharing utility
+ * Copyright (C) 2013 Bolton Software Ltd.
+ *
+ * This package is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * found in the file COPYING that should have accompanied this file.
+ *
+ * This package 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include "common.h"
+#import <CoreFoundation/CoreFoundation.h>
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+void				runCocoaApp();
+void				fakeDragging(const char* str, int length,  int cursorX, int cursorY);
+CFStringRef			getCocoaDropTarget();
+	
+#if defined(__cplusplus)
+}
+#endif

src/lib/platform/COSXDragSimulator.m

@@ -0,0 +1,64 @@
+/*
+ * synergy -- mouse and keyboard sharing utility
+ * Copyright (C) 2013 Bolton Software Ltd.
+ *
+ * This package is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * found in the file COPYING that should have accompanied this file.
+ *
+ * This package 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.
+ */
+
+#import "COSXDragSimulator.h"
+#import "COSXDragView.h"
+#import <Foundation/Foundation.h>
+#import <CoreData/CoreData.h>
+#import <Cocoa/Cocoa.h>
+
+NSWindow* g_dragWindow = NULL;
+COSXDragView* g_dragView = NULL;
+
+void
+runCocoaApp()
+{
+	NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
+	
+	NSApplication* app = [[NSApplication alloc] init];
+    NSWindow* window = [[NSWindow alloc]
+						initWithContentRect: NSMakeRect(-100, -100, 100, 100)
+						styleMask: NSTitledWindowMask | NSMiniaturizableWindowMask
+						backing: NSBackingStoreBuffered
+						defer: NO];
+    [window setTitle: @""];
+	[window makeKeyAndOrderFront:nil];
+	
+	COSXDragView* dragView = [[COSXDragView alloc] initWithFrame:NSMakeRect(0, 0, 100, 100)];
+	g_dragWindow = window;
+	g_dragView = dragView;
+	[window setContentView: dragView];
+	
+	[app run];
+	
+	[pool release];
+}
+
+void
+fakeDragging(const char* str, int length, int cursorX, int cursorY)
+{
+	dispatch_async(dispatch_get_main_queue(), ^{
+	NSRect screen = [[NSScreen mainScreen] frame];
+	NSLog ( @"mouseLocation: %d %d", cursorX, cursorY);
+	NSRect rect = NSMakeRect(cursorX - 50, screen.size.height - cursorY - 50, 100, 100);
+	[g_dragWindow setFrame:rect display:YES];
+	[g_dragWindow makeKeyWindow];
+	});
+}
+
+CFStringRef
+getCocoaDropTarget()
+{
+	return [g_dragView getDropTarget];
+}

src/lib/platform/COSXDragView.h

@@ -0,0 +1,28 @@
+/*
+ * synergy -- mouse and keyboard sharing utility
+ * Copyright (C) 2013 Bolton Software Ltd.
+ *
+ * This package is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * found in the file COPYING that should have accompanied this file.
+ *
+ * This package 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#import <Cocoa/Cocoa.h>
+
+@interface COSXDragView : NSView<NSDraggingSource,NSDraggingInfo>
+{
+	NSMutableString*	m_dropTarget;
+}
+
+-(CFStringRef)getDropTarget;
+-(void)clearDropTarget;
+
+@end

src/lib/platform/COSXDragView.m

@@ -0,0 +1,90 @@
+/*
+ * synergy -- mouse and keyboard sharing utility
+ * Copyright (C) 2013 Bolton Software Ltd.
+ *
+ * This package is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * found in the file COPYING that should have accompanied this file.
+ *
+ * This package 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#import "COSXDragView.h"
+
+@implementation COSXDragView
+
+- (id)
+initWithFrame:(NSRect)frame
+{
+	self = [super initWithFrame:frame];
+	m_dropTarget = [[NSMutableString alloc] initWithCapacity:0];
+    return self;
+}
+
+- (void)
+drawRect:(NSRect)dirtyRect
+{
+}
+
+- (BOOL)
+acceptsFirstMouse:(NSEvent *)theEvent
+{
+	return YES;
+}
+
+- (void)
+mouseDown:(NSEvent *)theEvent
+{
+	NSPoint dragPosition;
+	NSRect imageLocation;
+	dragPosition = [self convertPoint:[theEvent locationInWindow]
+							 fromView:nil];
+	
+	dragPosition.x -= 16;
+	dragPosition.y -= 16;
+	imageLocation.origin = dragPosition;
+	imageLocation.size = NSMakeSize(32,32);
+	[self dragPromisedFilesOfTypes:[NSArray arrayWithObject:@"zip"]
+								fromRect:imageLocation
+								  source:self
+							   slideBack:NO
+								   event:theEvent];
+}
+
+- (NSArray*)
+namesOfPromisedFilesDroppedAtDestination:(NSURL *)dropDestination
+{
+	[m_dropTarget setString:@""];
+	[m_dropTarget appendString:dropDestination.path];
+	NSLog ( @"cocoa drop target: %@", m_dropTarget);
+	return nil;
+}
+
+-(NSDragOperation)
+draggingSourceOperationMaskForLocal:(BOOL)flag
+{
+	return NSDragOperationCopy;
+}
+
+-(CFStringRef)
+getDropTarget
+{
+	NSMutableString* string;
+	string = [[NSMutableString alloc] initWithCapacity:0];
+	[string appendString:m_dropTarget];
+	return (CFStringRef)string;
+}
+
+-(void)
+clearDropTarget
+{
+	[m_dropTarget setString:@""];
+}
+
+@end

src/lib/platform/COSXEventQueueBuffer.cpp

@@ -90,7 +90,7 @@ bool
 COSXEventQueueBuffer::addEvent(UInt32 dataID)
 {
 	EventRef event;
-	OSStatus error = CreateEvent( 
+	OSStatus error = CreateEvent(
 							kCFAllocatorDefault,
 							'Syne', 
 							dataID,
@@ -99,7 +99,7 @@ COSXEventQueueBuffer::addEvent(UInt32 dataID)
 							&event);
 
 	if (error == noErr) {
-		error = PostEventToQueue(GetMainEventQueue(), event, 
+		error = PostEventToQueue(m_threadEventQueueRef, event,
 							kEventPriorityStandard);
 		ReleaseEvent(event);
 	}
@@ -126,3 +126,9 @@ COSXEventQueueBuffer::deleteTimer(CEventQueueTimer* timer) const
 {
 	delete timer;
 }
+
+void
+COSXEventQueueBuffer::cacheCurrentEventQueueRef()
+{
+	m_threadEventQueueRef = GetCurrentEventQueue();
+}

src/lib/platform/COSXEventQueueBuffer.h

@@ -38,10 +38,12 @@ public:
 	virtual CEventQueueTimer*
 						newTimer(double duration, bool oneShot) const;
 	virtual void		deleteTimer(CEventQueueTimer*) const;
+	virtual void		cacheCurrentEventQueueRef();
 
 private:
 	EventRef			m_event;
 	IEventQueue*		m_eventQueue;
+	EventQueueRef		m_threadEventQueueRef;
 };
 
 #endif

src/lib/platform/COSXPasteboardPeeker.h

@@ -0,0 +1,31 @@
+/*
+ * synergy -- mouse and keyboard sharing utility
+ * Copyright (C) 2013 Bolton Software Ltd.
+ *
+ * This package is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * found in the file COPYING that should have accompanied this file.
+ *
+ * This package 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include "common.h"
+#import <CoreFoundation/CoreFoundation.h>
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+CFStringRef				getDraggedFileURL();
+	
+#if defined(__cplusplus)
+}
+#endif

src/lib/platform/COSXPasteboardPeeker.m

@@ -0,0 +1,35 @@
+/*
+ * synergy -- mouse and keyboard sharing utility
+ * Copyright (C) 2013 Bolton Software Ltd.
+ *
+ * This package is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * found in the file COPYING that should have accompanied this file.
+ *
+ * This package 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.
+ */
+
+#import "COSXPasteboardPeeker.h"
+#import <Foundation/Foundation.h>
+#import <CoreData/CoreData.h>
+#import <Cocoa/Cocoa.h>
+
+CFStringRef
+getDraggedFileURL()
+{
+	NSString* pbName = NSDragPboard;
+	NSPasteboard* pboard = [NSPasteboard pasteboardWithName:pbName];
+	
+	NSMutableString* string;
+	string = [[NSMutableString alloc] initWithCapacity:0];
+
+	NSArray* files = [pboard propertyListForType:NSFilenamesPboardType];
+	for (id file in files) {
+		[string appendString: (NSString*)file];
+	}
+	
+	return (CFStringRef)string;
+}

src/lib/platform/COSXScreen.cpp

@@ -32,6 +32,8 @@
 #include "TMethodEventJob.h"
 #include "TMethodJob.h"
 #include "XArch.h"
+#include "COSXDragSimulator.h"
+#include "COSXPasteboardPeeker.h"
 
 #include <math.h>
 
@@ -95,7 +97,9 @@ COSXScreen::COSXScreen(IEventQueue* events, bool isPrimary, bool autoShowHideCur
 	m_autoShowHideCursor(autoShowHideCursor),
 	m_eventTapRLSR(nullptr),
 	m_eventTapPort(nullptr),
-	m_pmRootPort(0)
+	m_pmRootPort(0),
+	m_fakeDraggingStarted(false),
+	m_getDropTargetThread(NULL)
 {
 	try {
 		m_displayID   = CGMainDisplayID();
@@ -564,7 +568,7 @@ COSXScreen::fakeMouseButton(ButtonID id, bool press)
 		
 		MouseButtonState state = press ? kMouseButtonDown : kMouseButtonUp;
 		
-		LOG((CLOG_DEBUG1 "faking mouse button %s", press ? "press" : "release"));
+		LOG((CLOG_DEBUG1 "faking mouse button id: %d press: %s", id, press ? "pressed" : "released"));
 		
 		MouseButtonEventMapType thisButtonMap = MouseButtonEventMap[index];
 		CGEventType type = thisButtonMap[state];
@@ -580,11 +584,60 @@ COSXScreen::fakeMouseButton(ButtonID id, bool press)
 		m_lastSingleClickXCursor = m_xCursor;
 		m_lastSingleClickYCursor = m_yCursor;
 	}
+	if (!press && (id == kButtonLeft)) {
+		fakeKeyUp(29);
+		
+		if (m_fakeDraggingStarted) {
+			m_getDropTargetThread = new CThread(new TMethodJob<COSXScreen>(
+				this, &COSXScreen::getDropTargetThread));
+		}
+		
+		m_fakeDraggingStarted = false;
+	}
 }
 
 void
-COSXScreen::fakeMouseMove(SInt32 x, SInt32 y) const
+COSXScreen::getDropTargetThread(void*)
 {
+	char* cstr = NULL;
+	
+	// wait for 5 secs for the drop destinaiton string to be filled.
+	UInt32 timeout = ARCH->time() + 5;
+	
+	while (ARCH->time() < timeout) {
+		CFStringRef cfstr = getCocoaDropTarget();
+		cstr = CFStringRefToUTF8String(cfstr);
+		CFRelease(cfstr);
+		
+		if (cstr != NULL) {
+			break;
+		}
+		ARCH->sleep(.1f);
+	}
+	
+	if (cstr != NULL) {
+		LOG((CLOG_DEBUG "drop target: %s", cstr));
+		m_dropTarget = cstr;
+	}
+	else {
+		LOG((CLOG_ERR "failed to get drop target"));
+		m_dropTarget.clear();
+	}
+	
+	delete m_getDropTargetThread;
+}
+
+void
+COSXScreen::fakeMouseMove(SInt32 x, SInt32 y)
+{
+	if (m_fakeDraggingStarted) {
+		// HACK: for some reason the drag icon
+		// does not follow the cursor unless a key
+		// is pressed (except esc key)
+		// TODO: fake this key down properly
+		fakeKeyDown(kKeyControl_L, 8194, 29);
+	}
+	
 	// synthesize event
 	CGPoint pos;
 	pos.x = x;
@@ -671,6 +724,12 @@ COSXScreen::showCursor()
 	}
 
 	m_cursorHidden = false;
+	
+	if (m_fakeDraggingStarted) {
+		// TODO: use real file extension
+		fakeDragging("txt", 3, m_xCursor, m_yCursor);
+		fakeMouseButton(kButtonLeft, true);
+	}
 }
 
 void
@@ -1409,8 +1468,8 @@ COSXScreen::getScrollSpeedFactor() const
 void
 COSXScreen::enableDragTimer(bool enable)
 {
-  UInt32 modifiers;
-  MouseTrackingResult res; 
+	UInt32 modifiers;
+	MouseTrackingResult res;
 
 	if (enable && m_dragTimer == NULL) {
 		m_dragTimer = m_events->newTimer(0.01, NULL);
@@ -1430,8 +1489,8 @@ void
 COSXScreen::handleDrag(const CEvent&, void*)
 {
 	Point p;
-  UInt32 modifiers;
-  MouseTrackingResult res; 
+	UInt32 modifiers;
+	MouseTrackingResult res; 
 
 	TrackMouseLocationWithOptions(NULL, 0, 0, &p, &modifiers, &res);
 
@@ -1848,10 +1907,16 @@ COSXScreen::handleCGInputEvent(CGEventTapProxy proxy,
 		case kCGEventOtherMouseUp:
 			screen->onMouseButton(false, CGEventGetIntegerValueField(event, kCGMouseEventButtonNumber) + 1);
 			break;
-		case kCGEventMouseMoved:
-		case kCGEventLeftMouseDragged:
+		case kCGEventLeftMouseDragged: {
+			CFStringRef dragInfo = getDraggedFileURL();
+			char* info = CFStringRefToUTF8String(dragInfo);
+			LOG((CLOG_DEBUG "drag info: %s", info));
+			CFRelease(dragInfo);
+			break;
+		}
 		case kCGEventRightMouseDragged:
 		case kCGEventOtherMouseDragged:
+		case kCGEventMouseMoved:
 			pos = CGEventGetLocation(event);
 			screen->onMouseMove(pos.x, pos.y);
 			
@@ -1942,3 +2007,27 @@ COSXScreen::CMouseButtonState::getFirstButtonDown() const
 	}
 	return -1;
 }
+
+char*
+COSXScreen::CFStringRefToUTF8String(CFStringRef aString)
+{
+	if (aString == NULL) {
+		return NULL;
+	}
+	
+	CFIndex length = CFStringGetLength(aString);
+	CFIndex maxSize = CFStringGetMaximumSizeForEncoding(
+		length,
+		kCFStringEncodingUTF8);
+	char* buffer = (char*)malloc(maxSize);
+	if (CFStringGetCString(aString, buffer, maxSize, kCFStringEncodingUTF8)) {
+		return buffer;
+	}
+	return NULL;
+}
+
+void
+COSXScreen::fakeDraggingFiles(CString str)
+{
+	m_fakeDraggingStarted = true;
+}

src/lib/platform/COSXScreen.h

@@ -79,7 +79,7 @@ public:
 
 	// ISecondaryScreen overrides
 	virtual void		fakeMouseButton(ButtonID id, bool press);
-	virtual void		fakeMouseMove(SInt32 x, SInt32 y) const;
+	virtual void		fakeMouseMove(SInt32 x, SInt32 y);
 	virtual void		fakeMouseRelativeMove(SInt32 dx, SInt32 dy) const;
 	virtual void		fakeMouseWheel(SInt32 xDelta, SInt32 yDelta) const;
 
@@ -98,6 +98,10 @@ public:
 	virtual void		setSequenceNumber(UInt32);
 	virtual bool		isPrimary() const;
 
+	virtual void		fakeDraggingFiles(CString str);
+	
+	const CString&		getDropTarget() const { return m_dropTarget; }
+	
 protected:
 	// IPlatformScreen overrides
 	virtual void		handleSystemEvent(const CEvent&, void*);
@@ -191,10 +195,16 @@ private:
 										   CGEventType type,
 										   CGEventRef event,
 										   void* refcon);
-        static CGEventRef	handleCGInputEventSecondary(CGEventTapProxy proxy,
-                                                                   		   CGEventType type,
-                                                                   		   CGEventRef event,
-                                                                   		   void* refcon);
+	static CGEventRef	handleCGInputEventSecondary(CGEventTapProxy proxy,
+													CGEventType type,
+													CGEventRef event,
+													void* refcon);
+	
+	// convert CFString to char*
+	static char*		CFStringRefToUTF8String(CFStringRef aString);
+	
+	void				getDropTargetThread(void*);
+	
 private:
 	struct CHotKeyItem {
 	public:
@@ -334,6 +344,10 @@ private:
 	bool					m_autoShowHideCursor;
 
 	IEventQueue*			m_events;
+	
+	bool					m_fakeDraggingStarted;
+	CThread*				m_getDropTargetThread;
+	CString					m_dropTarget;
 };
 
 #endif

src/lib/platform/CXWindowsEventQueueBuffer.h

@@ -45,6 +45,8 @@ public:
 						newTimer(double duration, bool oneShot) const;
 	virtual void		deleteTimer(CEventQueueTimer*) const;
 
+	virtual	void		cacheCurrentEventQueueRef() {}
+
 private:
 	void				flush();
 

src/lib/platform/CXWindowsScreen.cpp

@@ -832,7 +832,7 @@ CXWindowsScreen::fakeMouseButton(ButtonID button, bool press)
 }
 
 void
-CXWindowsScreen::fakeMouseMove(SInt32 x, SInt32 y) const
+CXWindowsScreen::fakeMouseMove(SInt32 x, SInt32 y)
 {
 	if (m_xinerama && m_xtestIsXineramaUnaware) {
 		XWarpPointer(m_display, None, m_root, 0, 0, 0, 0, x, y);

src/lib/platform/CXWindowsScreen.h

@@ -66,7 +66,7 @@ public:
 
 	// ISecondaryScreen overrides
 	virtual void		fakeMouseButton(ButtonID id, bool press);
-	virtual void		fakeMouseMove(SInt32 x, SInt32 y) const;
+	virtual void		fakeMouseMove(SInt32 x, SInt32 y);
 	virtual void		fakeMouseRelativeMove(SInt32 dx, SInt32 dy) const;
 	virtual void		fakeMouseWheel(SInt32 xDelta, SInt32 yDelta) const;
 

src/lib/server/CBaseClientProxy.h

@@ -79,6 +79,7 @@ public:
 	virtual void		screensaver(bool activate) = 0;
 	virtual void		resetOptions() = 0;
 	virtual void		setOptions(const COptionsList& options) = 0;
+	virtual void		draggingInfoSending(UInt32 fileCount, const char* data, size_t dataSize) = 0;
 	virtual void		fileChunkSending(UInt8 mark, char* data, size_t dataSize) = 0;
 	virtual CString		getName() const;
 

src/lib/server/CClientProxy.h

@@ -85,6 +85,7 @@ public:
 	virtual void		resetOptions() = 0;
 	virtual void		setOptions(const COptionsList& options) = 0;
 	virtual void		cryptoIv(const UInt8* iv) = 0;
+	virtual void		draggingInfoSending(UInt32 fileCount, const char* data, size_t dataSize) = 0;
 	virtual void		fileChunkSending(UInt8 mark, char* data, size_t dataSize) = 0;
 
 private:

src/lib/server/CClientProxy1_0.cpp

@@ -365,6 +365,13 @@ CClientProxy1_0::cryptoIv(const UInt8* iv)
 	LOG((CLOG_DEBUG "cryptoIv not supported"));
 }
 
+void
+CClientProxy1_0::draggingInfoSending(UInt32 fileCount, const char* data, size_t dataSize)
+{
+	// ignore -- not supported in protocol 1.0
+	LOG((CLOG_DEBUG "draggingInfoSending not supported"));
+}
+
 void
 CClientProxy1_0::fileChunkSending(UInt8 mark, char* data, size_t dataSize)
 {

src/lib/server/CClientProxy1_0.h

@@ -60,6 +60,7 @@ public:
 	virtual void		resetOptions();
 	virtual void		setOptions(const COptionsList& options);
 	virtual void		cryptoIv(const UInt8* iv);
+	virtual void		draggingInfoSending(UInt32 fileCount, const char* data, size_t dataSize);
 	virtual void		fileChunkSending(UInt8 mark, char* data, size_t dataSize);
 
 protected:

src/lib/server/CClientProxy1_5.cpp

@@ -40,6 +40,14 @@ CClientProxy1_5::~CClientProxy1_5()
 {
 }
 
+void
+CClientProxy1_5::draggingInfoSending(UInt32 fileCount, const char* data, size_t dataSize)
+{
+	CString info(data, dataSize);
+
+	CProtocolUtil::writef(getStream(), kMsgDDragInfo, fileCount, &info);
+}
+
 void
 CClientProxy1_5::fileChunkSending(UInt8 mark, char* data, size_t dataSize)
 {
@@ -79,7 +87,7 @@ void
 CClientProxy1_5::fileChunkReceived()
 {
 	// parse
-	UInt8 mark;
+	UInt8 mark = 0;
 	CString content;
 	CProtocolUtil::readf(getStream(), kMsgDFileTransfer + 4, &mark, &content);
 
@@ -113,7 +121,7 @@ CClientProxy1_5::fileChunkReceived()
 		break;
 
 	case kFileEnd:
-		m_events->addEvent(CEvent(m_events->forIScreen().fileRecieveComplete(), server));
+		m_events->addEvent(CEvent(m_events->forIScreen().fileRecieveCompleted(), server));
 		if (CLOG->getFilter() >= kDEBUG2) {
 			LOG((CLOG_DEBUG2 "file data transfer finished"));
 			m_elapsedTime += m_stopwatch.getTime();

src/lib/server/CClientProxy1_5.h

@@ -29,6 +29,7 @@ public:
 	CClientProxy1_5(const CString& name, synergy::IStream* adoptedStream, CServer* server, IEventQueue* events);
 	~CClientProxy1_5();
 
+	virtual void		draggingInfoSending(UInt32 fileCount, const char* data, size_t dataSize);
 	virtual void		fileChunkSending(UInt8 mark, char* data, size_t dataSize);
 	virtual bool		parseMessage(const UInt8* code);
 	void				fileChunkReceived();

src/lib/server/CPrimaryClient.cpp

@@ -249,6 +249,12 @@ CPrimaryClient::screensaver(bool)
 	// ignore
 }
 
+void
+CPrimaryClient::draggingInfoSending(UInt32 fileCount, const char* data, size_t dataSize)
+{
+	// ignore
+}
+
 void
 CPrimaryClient::fileChunkSending(UInt8 mark, char* data, size_t dataSize)
 {

src/lib/server/CPrimaryClient.h

@@ -144,6 +144,7 @@ public:
 	virtual void		screensaver(bool activate);
 	virtual void		resetOptions();
 	virtual void		setOptions(const COptionsList& options);
+	virtual void		draggingInfoSending(UInt32 fileCount, const char* data, size_t dataSize);
 	virtual void		fileChunkSending(UInt8 mark, char* data, size_t dataSize);
 
 private:

src/lib/server/CServer.cpp

@@ -37,6 +37,7 @@
 #include "CThread.h"
 #include "TMethodJob.h"
 #include "CFileChunker.h"
+#include "CDragInformation.h"
 #include <cstring>
 #include <cstdlib>
 #include <sstream>
@@ -167,10 +168,10 @@ CServer::CServer(CConfig& config, CPrimaryClient* primaryClient, CScreen* screen
 							this,
 							new TMethodEventJob<CServer>(this,
 								&CServer::handleFileChunkSendingEvent));
-	m_events->adoptHandler(m_events->forIScreen().fileRecieveComplete(),
+	m_events->adoptHandler(m_events->forIScreen().fileRecieveCompleted(),
 							this,
 							new TMethodEventJob<CServer>(this,
-								&CServer::handleFileRecieveCompleteEvent));
+								&CServer::handleFileRecieveCompletedEvent));
 
 	// add connection
 	addClient(m_primaryClient);
@@ -1472,9 +1473,9 @@ CServer::handleFileChunkSendingEvent(const CEvent& event, void*)
 }
 
 void
-CServer::handleFileRecieveCompleteEvent(const CEvent& event, void*)
+CServer::handleFileRecieveCompletedEvent(const CEvent& event, void*)
 {
-	onFileRecieveComplete();
+	onFileRecieveCompleted();
 }
 
 void
@@ -1737,8 +1738,24 @@ CServer::onMouseMovePrimary(SInt32 x, SInt32 y)
 
 	// should we switch or not?
 	if (isSwitchOkay(newScreen, dir, x, y, xc, yc)) {
+		if (m_screen->getDraggingStarted() && m_active != newScreen) {
+			CString& dragFileList = m_screen->getDraggingFileDir();
+			size_t size = dragFileList.size() + 1;
+			char* fileList = new char[size];
+			memcpy(fileList, dragFileList.c_str(), size);
+			fileList[size - 1] = '\0';
+			UInt32 fileCount = 1;
+
+			LOG((CLOG_DEBUG2 "sending drag information to client"));
+			LOG((CLOG_DEBUG3 "dragging file list: %s", fileList));
+			LOG((CLOG_DEBUG3 "dragging file list string size: %i", size));
+			newScreen->draggingInfoSending(fileCount, fileList, size);
+			m_screen->setDraggingStarted(false);
+		}
+
 		// switch screen
 		switchScreen(newScreen, x, y, false);
+
 		return true;
 	}
 	else {
@@ -1930,7 +1947,7 @@ CServer::onFileChunkSending(const void* data)
 }
 
 void
-CServer::onFileRecieveComplete()
+CServer::onFileRecieveCompleted()
 {
 	if (isReceivedFileSizeValid()) {
 		if (!m_fileTransferDes.empty()) {

src/lib/server/CServer.h

@@ -310,7 +310,7 @@ private:
 	void				handleFakeInputBeginEvent(const CEvent&, void*);
 	void				handleFakeInputEndEvent(const CEvent&, void*);
 	void				handleFileChunkSendingEvent(const CEvent&, void*);
-	void				handleFileRecieveCompleteEvent(const CEvent&, void*);
+	void				handleFileRecieveCompletedEvent(const CEvent&, void*);
 
 	// event processing
 	void				onClipboardChanged(CBaseClientProxy* sender,
@@ -327,7 +327,7 @@ private:
 	void				onMouseMoveSecondary(SInt32 dx, SInt32 dy);
 	void				onMouseWheel(SInt32 xDelta, SInt32 yDelta);
 	void				onFileChunkSending(const void* data);
-	void				onFileRecieveComplete();
+	void				onFileRecieveCompleted();
 
 	// add client to list and attach event handlers for client
 	bool				addClient(CBaseClientProxy*);

src/lib/synergy/CClientApp.cpp

@@ -50,6 +50,10 @@
 #include "COSXScreen.h"
 #endif
 
+#if defined(__APPLE__)
+#include "COSXDragSimulator.h"
+#endif
+
 #include <iostream>
 #include <stdio.h>
 
@@ -531,7 +535,17 @@ CClientApp::mainLoop()
 	// later.  the timer installed by startClient() will take care of
 	// that.
 	DAEMON_RUNNING(true);
+
+#if defined(__APPLE__)
+	CThread thread(
+		new TMethodJob<CClientApp>(
+			this, &CClientApp::runEventsLoop,
+			NULL));
+	runCocoaApp();
+#else
 	m_events->loop();
+#endif
+	
 	DAEMON_RUNNING(false);
 
 	// close down
@@ -612,3 +626,10 @@ CClientApp::startNode()
 		m_bye(kExitFailed);
 	}
 }
+
+void
+CClientApp::runEventsLoop(void*)
+{
+	m_events->cacheCurrentEventQueueRef();
+	m_events->loop();
+}

src/lib/synergy/CClientApp.h

@@ -85,6 +85,7 @@ public:
 
 private:
 	virtual bool parseArg(const int& argc, const char* const* argv, int& i);
+	void runEventsLoop(void*);
 
 private:
 	CClient*			s_client;

src/lib/synergy/CDragInformation.cpp

@@ -0,0 +1,57 @@
+/*
+ * synergy -- mouse and keyboard sharing utility
+ * Copyright (C) 2013 Bolton Software Ltd.
+ * 
+ * This package is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * found in the file COPYING that should have accompanied this file.
+ * 
+ * This package 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "CDragInformation.h"
+#include "CLog.h"
+
+using namespace std;
+
+void
+CDragInformation::parseDragInfo(CDragFileList& dragFileList, UInt32 fileNum, CString data)
+{
+	size_t startPos = 0;
+	size_t findResult1 = 0;
+	size_t findResult2 = 0;
+	dragFileList.clear();
+	while (fileNum) {
+		findResult1 = data.find('\0', startPos);
+		findResult2 = data.find_last_of("\\", findResult1);
+
+		if (findResult1 == startPos) {
+			//TODO: file number does not match, something goes wrong
+			break;
+		}
+		if (findResult1 - findResult2 > 1) {
+			dragFileList.push_back(data.substr(findResult2 + 1, findResult1 - findResult2));
+		}
+		startPos = findResult1 + 1;
+		--fileNum;
+	}
+}
+
+CString
+CDragInformation::getDragFileExtension(CString fileName)
+{
+	size_t findResult = -1;
+	findResult = fileName.find_last_of(".", fileName.size());
+	if (findResult != -1) {
+		return fileName.substr(findResult + 1, fileName.size() - findResult - 1);
+	}
+	else {
+		return "";
+	}
+}

src/lib/synergy/CDragInformation.h

@@ -0,0 +1,34 @@
+/*
+ * synergy -- mouse and keyboard sharing utility
+ * Copyright (C) 2013 Bolton Software Ltd.
+ * 
+ * This package is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * found in the file COPYING that should have accompanied this file.
+ * 
+ * This package 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include "stdvector.h"
+#include "CString.h"
+#include "BasicTypes.h"
+
+typedef std::vector<CString> CDragFileList;
+
+class CDragInformation {
+public:
+	CDragInformation() { }
+
+	~CDragInformation() { }
+
+	static void			parseDragInfo(CDragFileList& dragFileList, UInt32 fileNum, CString data);
+	static CString		getDragFileExtension(CString fileName);
+};

src/lib/synergy/CMakeLists.txt

@@ -48,6 +48,7 @@ set(inc
 	CArgsBase.h
 	IAppUtil.h
 	CFileChunker.h
+	CDragInformation.h
 )
 
 set(src
@@ -75,6 +76,7 @@ set(src
 	CAppUtil.cpp
 	CArgsBase.cpp
 	CFileChunker.cpp
+	CDragInformation.cpp
 )
 
 if (WIN32)

src/lib/synergy/CPlatformScreen.h

@@ -1,119 +1,126 @@
-/*
- * synergy -- mouse and keyboard sharing utility
- * Copyright (C) 2012 Bolton Software Ltd.
- * Copyright (C) 2004 Chris Schoeneman
- * 
- * This package is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * found in the file COPYING that should have accompanied this file.
- * 
- * This package 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, see <http://www.gnu.org/licenses/>.
- */
-
-#ifndef CPLATFORMSCREEN_H
-#define CPLATFORMSCREEN_H
-
-#include "IPlatformScreen.h"
-
-//! Base screen implementation
-/*!
-This screen implementation is the superclass of all other screen
-implementations.  It implements a handful of methods and requires
-subclasses to implement the rest.
-*/
-class CPlatformScreen : public IPlatformScreen {
-public:
-	CPlatformScreen(IEventQueue* events);
-	virtual ~CPlatformScreen();
-
-	// IScreen overrides
-	virtual void*		getEventTarget() const = 0;
-	virtual bool		getClipboard(ClipboardID id, IClipboard*) const = 0;
-	virtual void		getShape(SInt32& x, SInt32& y,
-							SInt32& width, SInt32& height) const = 0;
-	virtual void		getCursorPos(SInt32& x, SInt32& y) const = 0;
-
-	// IPrimaryScreen overrides
-	virtual void		reconfigure(UInt32 activeSides) = 0;
-	virtual void		warpCursor(SInt32 x, SInt32 y) = 0;
-	virtual UInt32		registerHotKey(KeyID key,
-							KeyModifierMask mask) = 0;
-	virtual void		unregisterHotKey(UInt32 id) = 0;
-	virtual void		fakeInputBegin() = 0;
-	virtual void		fakeInputEnd() = 0;
-	virtual SInt32		getJumpZoneSize() const = 0;
-	virtual bool		isAnyMouseButtonDown(UInt32& buttonID) const = 0;
-	virtual void		getCursorCenter(SInt32& x, SInt32& y) const = 0;
-
-	// ISecondaryScreen overrides
-	virtual void		fakeMouseButton(ButtonID id, bool press) = 0;
-	virtual void		fakeMouseMove(SInt32 x, SInt32 y) const = 0;
-	virtual void		fakeMouseRelativeMove(SInt32 dx, SInt32 dy) const = 0;
-	virtual void		fakeMouseWheel(SInt32 xDelta, SInt32 yDelta) const = 0;
-
-	// IKeyState overrides
-	virtual void		updateKeyMap();
-	virtual void		updateKeyState();
-	virtual void		setHalfDuplexMask(KeyModifierMask);
-	virtual void		fakeKeyDown(KeyID id, KeyModifierMask mask,
-							KeyButton button);
-	virtual bool		fakeKeyRepeat(KeyID id, KeyModifierMask mask,
-							SInt32 count, KeyButton button);
-	virtual bool		fakeKeyUp(KeyButton button);
-	virtual void		fakeAllKeysUp();
-	virtual bool		fakeCtrlAltDel();
-	virtual bool		isKeyDown(KeyButton) const;
-	virtual KeyModifierMask
-						getActiveModifiers() const;
-	virtual KeyModifierMask
-						pollActiveModifiers() const;
-	virtual SInt32		pollActiveGroup() const;
-	virtual void		pollPressedKeys(KeyButtonSet& pressedKeys) const;
-
-	virtual CString&	getDraggingFileDir() { return m_draggingFileDir; }
-
-	// IPlatformScreen overrides
-	virtual void		enable() = 0;
-	virtual void		disable() = 0;
-	virtual void		enter() = 0;
-	virtual bool		leave() = 0;
-	virtual bool		setClipboard(ClipboardID, const IClipboard*) = 0;
-	virtual void		checkClipboards() = 0;
-	virtual void		openScreensaver(bool notify) = 0;
-	virtual void		closeScreensaver() = 0;
-	virtual void		screensaver(bool activate) = 0;
-	virtual void		resetOptions() = 0;
-	virtual void		setOptions(const COptionsList& options) = 0;
-	virtual void		setSequenceNumber(UInt32) = 0;
-	virtual bool		isPrimary() const = 0;
-
-protected:
-	//! Update mouse buttons
-	/*!
-	Subclasses must implement this method to update their internal mouse
-	button mapping and, if desired, state tracking.
-	*/
-	virtual void		updateButtons() = 0;
-
-	//! Get the key state
-	/*!
-	Subclasses must implement this method to return the platform specific
-	key state object that each subclass must have.
-	*/
-	virtual IKeyState*	getKeyState() const = 0;
-
-	// IPlatformScreen overrides
-	virtual void		handleSystemEvent(const CEvent& event, void*) = 0;
-
-protected:
-	CString				m_draggingFileDir;
-	bool				m_draggingStarted;
-};
-
-#endif
+/*
+ * synergy -- mouse and keyboard sharing utility
+ * Copyright (C) 2012 Bolton Software Ltd.
+ * Copyright (C) 2004 Chris Schoeneman
+ * 
+ * This package is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * found in the file COPYING that should have accompanied this file.
+ * 
+ * This package 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef CPLATFORMSCREEN_H
+#define CPLATFORMSCREEN_H
+
+#include "IPlatformScreen.h"
+#include <stdexcept>
+
+//! Base screen implementation
+/*!
+This screen implementation is the superclass of all other screen
+implementations.  It implements a handful of methods and requires
+subclasses to implement the rest.
+*/
+class CPlatformScreen : public IPlatformScreen {
+public:
+	CPlatformScreen(IEventQueue* events);
+	virtual ~CPlatformScreen();
+
+	// IScreen overrides
+	virtual void*		getEventTarget() const = 0;
+	virtual bool		getClipboard(ClipboardID id, IClipboard*) const = 0;
+	virtual void		getShape(SInt32& x, SInt32& y,
+							SInt32& width, SInt32& height) const = 0;
+	virtual void		getCursorPos(SInt32& x, SInt32& y) const = 0;
+
+	// IPrimaryScreen overrides
+	virtual void		reconfigure(UInt32 activeSides) = 0;
+	virtual void		warpCursor(SInt32 x, SInt32 y) = 0;
+	virtual UInt32		registerHotKey(KeyID key,
+							KeyModifierMask mask) = 0;
+	virtual void		unregisterHotKey(UInt32 id) = 0;
+	virtual void		fakeInputBegin() = 0;
+	virtual void		fakeInputEnd() = 0;
+	virtual SInt32		getJumpZoneSize() const = 0;
+	virtual bool		isAnyMouseButtonDown(UInt32& buttonID) const = 0;
+	virtual void		getCursorCenter(SInt32& x, SInt32& y) const = 0;
+
+	// ISecondaryScreen overrides
+	virtual void		fakeMouseButton(ButtonID id, bool press) = 0;
+	virtual void		fakeMouseMove(SInt32 x, SInt32 y) = 0;
+	virtual void		fakeMouseRelativeMove(SInt32 dx, SInt32 dy) const = 0;
+	virtual void		fakeMouseWheel(SInt32 xDelta, SInt32 yDelta) const = 0;
+
+	// IKeyState overrides
+	virtual void		updateKeyMap();
+	virtual void		updateKeyState();
+	virtual void		setHalfDuplexMask(KeyModifierMask);
+	virtual void		fakeKeyDown(KeyID id, KeyModifierMask mask,
+							KeyButton button);
+	virtual bool		fakeKeyRepeat(KeyID id, KeyModifierMask mask,
+							SInt32 count, KeyButton button);
+	virtual bool		fakeKeyUp(KeyButton button);
+	virtual void		fakeAllKeysUp();
+	virtual bool		fakeCtrlAltDel();
+	virtual bool		isKeyDown(KeyButton) const;
+	virtual KeyModifierMask
+						getActiveModifiers() const;
+	virtual KeyModifierMask
+						pollActiveModifiers() const;
+	virtual SInt32		pollActiveGroup() const;
+	virtual void		pollPressedKeys(KeyButtonSet& pressedKeys) const;
+
+	virtual void		setDraggingStarted(bool started) { m_draggingStarted = started; }
+	virtual bool		getDraggingStarted() { return m_draggingStarted; }
+	virtual CString&	getDraggingFileDir() { return m_draggingFileDir; }
+
+	// IPlatformScreen overrides
+	virtual void		enable() = 0;
+	virtual void		disable() = 0;
+	virtual void		enter() = 0;
+	virtual bool		leave() = 0;
+	virtual bool		setClipboard(ClipboardID, const IClipboard*) = 0;
+	virtual void		checkClipboards() = 0;
+	virtual void		openScreensaver(bool notify) = 0;
+	virtual void		closeScreensaver() = 0;
+	virtual void		screensaver(bool activate) = 0;
+	virtual void		resetOptions() = 0;
+	virtual void		setOptions(const COptionsList& options) = 0;
+	virtual void		setSequenceNumber(UInt32) = 0;
+	virtual bool		isPrimary() const = 0;
+	
+	virtual void		fakeDraggingFiles(CString str) { throw std::runtime_error("fakeDraggingFiles not implemented"); }
+	virtual const CString&
+						getDropTarget() const { throw std::runtime_error("getDropTarget not implemented"); }
+
+protected:
+	//! Update mouse buttons
+	/*!
+	Subclasses must implement this method to update their internal mouse
+	button mapping and, if desired, state tracking.
+	*/
+	virtual void		updateButtons() = 0;
+
+	//! Get the key state
+	/*!
+	Subclasses must implement this method to return the platform specific
+	key state object that each subclass must have.
+	*/
+	virtual IKeyState*	getKeyState() const = 0;
+
+	// IPlatformScreen overrides
+	virtual void		handleSystemEvent(const CEvent& event, void*) = 0;
+
+protected:
+	CString				m_draggingFileDir;
+	bool				m_draggingStarted;
+};
+
+#endif

src/lib/synergy/CScreen.cpp

@@ -415,12 +415,36 @@ CScreen::pollActiveModifiers() const
 	return m_screen->pollActiveModifiers();
 }
 
+bool
+CScreen::getDraggingStarted() const
+{
+	return m_screen->getDraggingStarted();
+}
+
+void
+CScreen::setDraggingStarted(bool started)
+{
+	m_screen->setDraggingStarted(started);
+}
+
+void
+CScreen::startDraggingFiles(CString str)
+{
+	m_screen->fakeDraggingFiles(str);
+}
+
 CString&
 CScreen::getDraggingFileDir() const
 {
 	return m_screen->getDraggingFileDir();
 }
 
+const CString&
+CScreen::getDropTarget() const
+{
+	return m_screen->getDropTarget();
+}
+
 void*
 CScreen::getEventTarget() const
 {

src/lib/synergy/CScreen.h

@@ -219,6 +219,12 @@ public:
 	*/
 	void				fakeInputEnd();
 
+	//! Change dragging status
+	void				setDraggingStarted(bool started);
+	
+	//! Fake a files dragging operation
+	void				startDraggingFiles(CString str);
+
 	//@}
 	//! @name accessors
 	//@{
@@ -267,10 +273,18 @@ public:
 	*/
 	KeyModifierMask		pollActiveModifiers() const;
 
+	//! Check if dragging has started.
+
+	bool				getDraggingStarted() const;
+
 	//! Get dragging file's directory.
 
 	CString&			getDraggingFileDir() const;
 
+	//! Get drop target directory.
+	
+	const CString&		getDropTarget() const;
+
 	//@}
 
 	// IScreen overrides

src/lib/synergy/IPlatformScreen.h

@@ -130,6 +130,9 @@ public:
 	*/
 	virtual void		setSequenceNumber(UInt32) = 0;
 
+	//! Change dragging status
+	virtual void		setDraggingStarted(bool started) = 0;
+
 	//@}
 	//! @name accessors
 	//@{
@@ -162,7 +165,7 @@ public:
 
 	// ISecondaryScreen overrides
 	virtual void		fakeMouseButton(ButtonID id, bool press) = 0;
-	virtual void		fakeMouseMove(SInt32 x, SInt32 y) const = 0;
+	virtual void		fakeMouseMove(SInt32 x, SInt32 y) = 0;
 	virtual void		fakeMouseRelativeMove(SInt32 dx, SInt32 dy) const = 0;
 	virtual void		fakeMouseWheel(SInt32 xDelta, SInt32 yDelta) const = 0;
 
@@ -186,7 +189,12 @@ public:
 	virtual void		pollPressedKeys(KeyButtonSet& pressedKeys) const = 0;
 
 	virtual CString&	getDraggingFileDir() = 0;
+	virtual bool		getDraggingStarted() = 0;
 
+	virtual void		fakeDraggingFiles(CString str) = 0;
+	virtual const CString&
+						getDropTarget() const = 0;
+					
 protected:
 	//! Handle system event
 	/*!

src/lib/synergy/ISecondaryScreen.h

@@ -44,7 +44,7 @@ public:
 	/*!
 	Synthesize a mouse move to the absolute coordinates \c x,y.
 	*/
-	virtual void		fakeMouseMove(SInt32 x, SInt32 y) const = 0;
+	virtual void		fakeMouseMove(SInt32 x, SInt32 y) = 0;
 
 	//! Fake mouse move
 	/*!

src/lib/synergy/ProtocolTypes.cpp

@@ -46,6 +46,7 @@ const char*				kMsgDInfo			= "DINF%2i%2i%2i%2i%2i%2i%2i";
 const char*				kMsgDSetOptions		= "DSOP%4I";
 const char*				kMsgDCryptoIv		= "DCIV%s";
 const char*				kMsgDFileTransfer	= "DFTR%1i%s";
+const char*				kMsgDDragInfo		= "DDRG%2i%s";
 const char*				kMsgQInfo			= "QINF";
 const char*				kMsgEIncompatible	= "EICV%2i%2i";
 const char*				kMsgEBusy 			= "EBSY";

src/lib/synergy/ProtocolTypes.h

@@ -263,6 +263,12 @@ extern const char*		kMsgDCryptoIv;
 // 2 means the file transfer is finished.
 extern const char*		kMsgDFileTransfer;
 
+// drag infomation:  primary <-> secondary
+// transfer drag infomation. The first 2 bytes are used for storing
+// the number of dragging objects. Then the following string consists
+// of each object's directory.
+extern const char*		kMsgDDragInfo;
+
 //
 // query codes
 //

src/test/integtests/NetworkTests.cpp

@@ -92,16 +92,16 @@ public:
 	void				sendMockData(void* eventTarget);
 	
 	void				sendToClient_mockData_handleClientConnected(const CEvent&, void* vlistener);
-	void				sendToClient_mockData_fileRecieveComplete(const CEvent&, void*);
+	void				sendToClient_mockData_fileRecieveCompleted(const CEvent&, void*);
 	
 	void				sendToClient_mockFile_handleClientConnected(const CEvent&, void* vlistener);
-	void				sendToClient_mockFile_fileRecieveComplete(const CEvent& event, void*);
+	void				sendToClient_mockFile_fileRecieveCompleted(const CEvent& event, void*);
 	
 	void				sendToServer_mockData_handleClientConnected(const CEvent&, void* vlistener);
-	void				sendToServer_mockData_fileRecieveComplete(const CEvent& event, void*);
+	void				sendToServer_mockData_fileRecieveCompleted(const CEvent& event, void*);
 
 	void				sendToServer_mockFile_handleClientConnected(const CEvent&, void* vlistener);
-	void				sendToServer_mockFile_fileRecieveComplete(const CEvent& event, void*);
+	void				sendToServer_mockFile_fileRecieveCompleted(const CEvent& event, void*);
 	
 public:
 	CTestEventQueue		m_events;
@@ -159,16 +159,16 @@ TEST_F(NetworkTests, sendToClient_mockData)
 	CClient client(&m_events, "stub", serverAddress, clientSocketFactory, NULL, &clientScreen, cryptoOptions);
 		
 	m_events.adoptHandler(
-		m_events.forIScreen().fileRecieveComplete(), &client,
+		m_events.forIScreen().fileRecieveCompleted(), &client,
 		new TMethodEventJob<NetworkTests>(
-			this, &NetworkTests::sendToClient_mockData_fileRecieveComplete));
+			this, &NetworkTests::sendToClient_mockData_fileRecieveCompleted));
 
 	client.connect();
 
 	m_events.initQuitTimeout(10);
 	m_events.loop();
 	m_events.removeHandler(m_events.forCClientListener().connected(), &listener);
-	m_events.removeHandler(m_events.forIScreen().fileRecieveComplete(), &client);
+	m_events.removeHandler(m_events.forIScreen().fileRecieveCompleted(), &client);
 	m_events.cleanupQuitTimeout();
 }
 
@@ -220,16 +220,16 @@ TEST_F(NetworkTests, sendToClient_mockFile)
 	CClient client(&m_events, "stub", serverAddress, clientSocketFactory, NULL, &clientScreen, cryptoOptions);
 		
 	m_events.adoptHandler(
-		m_events.forIScreen().fileRecieveComplete(), &client,
+		m_events.forIScreen().fileRecieveCompleted(), &client,
 		new TMethodEventJob<NetworkTests>(
-			this, &NetworkTests::sendToClient_mockFile_fileRecieveComplete));
+			this, &NetworkTests::sendToClient_mockFile_fileRecieveCompleted));
 
 	client.connect();
 
 	m_events.initQuitTimeout(10);
 	m_events.loop();
 	m_events.removeHandler(m_events.forCClientListener().connected(), &listener);
-	m_events.removeHandler(m_events.forIScreen().fileRecieveComplete(), &client);
+	m_events.removeHandler(m_events.forIScreen().fileRecieveCompleted(), &client);
 	m_events.cleanupQuitTimeout();
 }
 
@@ -281,16 +281,16 @@ TEST_F(NetworkTests, sendToServer_mockData)
 			this, &NetworkTests::sendToServer_mockData_handleClientConnected, &client));
 
 	m_events.adoptHandler(
-		m_events.forIScreen().fileRecieveComplete(), &server,
+		m_events.forIScreen().fileRecieveCompleted(), &server,
 		new TMethodEventJob<NetworkTests>(
-			this, &NetworkTests::sendToServer_mockData_fileRecieveComplete));
+			this, &NetworkTests::sendToServer_mockData_fileRecieveCompleted));
 
 	client.connect();
 
 	m_events.initQuitTimeout(10);
 	m_events.loop();
 	m_events.removeHandler(m_events.forCClientListener().connected(), &listener);
-	m_events.removeHandler(m_events.forIScreen().fileRecieveComplete(), &server);
+	m_events.removeHandler(m_events.forIScreen().fileRecieveCompleted(), &server);
 	m_events.cleanupQuitTimeout();
 }
 
@@ -342,16 +342,16 @@ TEST_F(NetworkTests, sendToServer_mockFile)
 			this, &NetworkTests::sendToServer_mockFile_handleClientConnected, &client));
 
 	m_events.adoptHandler(
-		m_events.forIScreen().fileRecieveComplete(), &server,
+		m_events.forIScreen().fileRecieveCompleted(), &server,
 		new TMethodEventJob<NetworkTests>(
-			this, &NetworkTests::sendToServer_mockFile_fileRecieveComplete));
+			this, &NetworkTests::sendToServer_mockFile_fileRecieveCompleted));
 
 	client.connect();
 
 	m_events.initQuitTimeout(10);
 	m_events.loop();
 	m_events.removeHandler(m_events.forCClientListener().connected(), &listener);
-	m_events.removeHandler(m_events.forIScreen().fileRecieveComplete(), &server);
+	m_events.removeHandler(m_events.forIScreen().fileRecieveCompleted(), &server);
 	m_events.cleanupQuitTimeout();
 }
 
@@ -374,7 +374,7 @@ NetworkTests::sendToClient_mockData_handleClientConnected(const CEvent&, void* v
 }
 
 void 
-NetworkTests::sendToClient_mockData_fileRecieveComplete(const CEvent& event, void*)
+NetworkTests::sendToClient_mockData_fileRecieveCompleted(const CEvent& event, void*)
 {
 	CClient* client = reinterpret_cast<CClient*>(event.getTarget());
 	EXPECT_TRUE(client->isReceivedFileSizeValid());
@@ -401,7 +401,7 @@ NetworkTests::sendToClient_mockFile_handleClientConnected(const CEvent&, void* v
 }
 
 void 
-NetworkTests::sendToClient_mockFile_fileRecieveComplete(const CEvent& event, void*)
+NetworkTests::sendToClient_mockFile_fileRecieveCompleted(const CEvent& event, void*)
 {
 	CClient* client = reinterpret_cast<CClient*>(event.getTarget());
 	EXPECT_TRUE(client->isReceivedFileSizeValid());
@@ -417,7 +417,7 @@ NetworkTests::sendToServer_mockData_handleClientConnected(const CEvent&, void* v
 }
 
 void 
-NetworkTests::sendToServer_mockData_fileRecieveComplete(const CEvent& event, void*)
+NetworkTests::sendToServer_mockData_fileRecieveCompleted(const CEvent& event, void*)
 {
 	CServer* server = reinterpret_cast<CServer*>(event.getTarget());
 	EXPECT_TRUE(server->isReceivedFileSizeValid());
@@ -433,7 +433,7 @@ NetworkTests::sendToServer_mockFile_handleClientConnected(const CEvent&, void* v
 }
 
 void 
-NetworkTests::sendToServer_mockFile_fileRecieveComplete(const CEvent& event, void*)
+NetworkTests::sendToServer_mockFile_fileRecieveCompleted(const CEvent& event, void*)
 {
 	CServer* server = reinterpret_cast<CServer*>(event.getTarget());
 	EXPECT_TRUE(server->isReceivedFileSizeValid());

src/test/unittests/synergy/CMockEventQueue.h

@@ -61,6 +61,7 @@ public:
 	MOCK_METHOD0(forIKeyState, IKeyStateEvents&());
 	MOCK_METHOD0(forIPrimaryScreen, IPrimaryScreenEvents&());
 	MOCK_METHOD0(forIScreen, IScreenEvents&());
+	MOCK_METHOD0(cacheCurrentEventQueueRef, void());
 };
 
 #endif