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Copy pathmacpaste.c
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183 lines (156 loc) · 5.19 KB
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// Public Domain License 2016
//
// Simulate right-handed unix/linux X11 middle-mouse-click copy and paste.
//
// References:
// http://stackoverflow.com/questions/3134901/mouse-tracking-daemon
// http://stackoverflow.com/questions/2379867/simulating-key-press-events-in-mac-os-x#2380280
//
// Compile with:
// gcc -framework ApplicationServices -o macpaste macpaste.c
//
// Start with:
// ./macpaste
//
// Terminate with Ctrl+C
#include <ApplicationServices/ApplicationServices.h>
#include <Carbon/Carbon.h> // kVK_ANSI_*
#include <sys/time.h> // gettimeofday
char isDragging = 0;
long long prevClickTime = 0;
long long curClickTime = 0;
CGEventTapLocation tapA = kCGAnnotatedSessionEventTap;
CGEventTapLocation tapH = kCGHIDEventTap;
#define DOUBLE_CLICK_MILLIS 500
long long now() {
struct timeval te;
gettimeofday( & te, NULL );
long long milliseconds = te.tv_sec*1000LL + te.tv_usec/1000; // caculate milliseconds
return milliseconds;
}
static void paste(CGEventRef event) {
// Mouse click to focus and position insertion cursor.
CGPoint mouseLocation = CGEventGetLocation( event );
CGEventRef mouseClickDown = CGEventCreateMouseEvent(
NULL, kCGEventLeftMouseDown, mouseLocation, kCGMouseButtonLeft );
CGEventRef mouseClickUp = CGEventCreateMouseEvent(
NULL, kCGEventLeftMouseUp, mouseLocation, kCGMouseButtonLeft );
CGEventPost( tapH, mouseClickDown );
CGEventPost( tapH, mouseClickUp );
CFRelease( mouseClickDown );
CFRelease( mouseClickUp );
// Allow click events time to position cursor before pasting.
usleep( 1000 );
// Paste.
CGEventSourceRef source = CGEventSourceCreate( kCGEventSourceStateCombinedSessionState );
CGEventRef kbdEventPasteDown = CGEventCreateKeyboardEvent( source, kVK_ANSI_V, 1 );
CGEventRef kbdEventPasteUp = CGEventCreateKeyboardEvent( source, kVK_ANSI_V, 0 );
CGEventSetFlags( kbdEventPasteDown, kCGEventFlagMaskCommand );
CGEventPost( tapA, kbdEventPasteDown );
CGEventPost( tapA, kbdEventPasteUp );
CFRelease( kbdEventPasteDown );
CFRelease( kbdEventPasteUp );
CFRelease( source );
}
static void copy() {
CGEventSourceRef source = CGEventSourceCreate( kCGEventSourceStateCombinedSessionState );
CGEventRef kbdEventDown = CGEventCreateKeyboardEvent( source, kVK_ANSI_C, 1 );
CGEventRef kbdEventUp = CGEventCreateKeyboardEvent( source, kVK_ANSI_C, 0 );
CGEventSetFlags( kbdEventDown, kCGEventFlagMaskCommand );
CGEventPost( tapA, kbdEventDown );
CGEventPost( tapA, kbdEventUp );
CFRelease( kbdEventDown );
CFRelease( kbdEventUp );
CFRelease( source );
}
static void recordClickTime() {
prevClickTime = curClickTime;
curClickTime = now();
}
static char isDoubleClickSpeed() {
return ( curClickTime - prevClickTime ) < DOUBLE_CLICK_MILLIS;
}
static char isDoubleClick() {
return isDoubleClickSpeed();
}
static CGEventRef mouseCallback (
CGEventTapProxy proxy,
CGEventType type,
CGEventRef event,
void * refcon
) {
int* dontpaste = refcon;
switch ( type )
{
case kCGEventOtherMouseDown:
if (*dontpaste == 0)
paste( event );
break;
case kCGEventLeftMouseDown:
recordClickTime();
break;
case kCGEventLeftMouseUp:
if ( isDoubleClick() || isDragging ) {
copy();
}
isDragging = 0;
break;
case kCGEventLeftMouseDragged:
isDragging = 1;
break;
default:
break;
}
// Pass on the event, we must not modify it anyway, we are a listener
return event;
}
int main (
int argc,
char ** argv
) {
CGEventMask emask;
CFMachPortRef myEventTap;
CFRunLoopSourceRef eventTapRLSrc;
// parse args for -n flag
int c;
int dontpaste = 0;
while ((c = getopt (argc, argv, "n")) != -1)
switch (c)
{
case 'n':
dontpaste = 1;
break;
default:
break;
}
// We want "other" mouse button click-release, such as middle or exotic.
emask = CGEventMaskBit( kCGEventOtherMouseDown ) |
CGEventMaskBit( kCGEventLeftMouseDown ) |
CGEventMaskBit( kCGEventLeftMouseUp ) |
CGEventMaskBit( kCGEventLeftMouseDragged );
// Create the Tap
myEventTap = CGEventTapCreate (
kCGSessionEventTap, // Catch all events for current user session
kCGTailAppendEventTap, // Append to end of EventTap list
kCGEventTapOptionListenOnly, // We only listen, we don't modify
emask,
& mouseCallback,
& dontpaste // dontpaste -> callback
);
// Create a RunLoop Source for it
eventTapRLSrc = CFMachPortCreateRunLoopSource(
kCFAllocatorDefault,
myEventTap,
0
);
// Add the source to the current RunLoop
CFRunLoopAddSource(
CFRunLoopGetCurrent(),
eventTapRLSrc,
kCFRunLoopDefaultMode
);
// Keep the RunLoop running forever
CFRunLoopRun();
// Not reached (RunLoop above never stops running)
return 0;
}