Only paste when the cursor is an ibeam

Don't paste unless the cursor is an ibeam,
aka is hovering over a text field.  Should let the
middle button work for eg browser links in new tab
hopefully

Author: josephlbarnett

Makefile

@@ -8,8 +8,8 @@ help:
 clean:
 	-rm -f macpaste
 
-macpaste: macpaste.c
-	gcc -O2 -framework ApplicationServices -o macpaste macpaste.c
+macpaste: macpaste.m
+	gcc -O2 -framework AppKit -framework ApplicationServices -o macpaste macpaste.m
 
 run:
 	./macpaste

macpaste.c renamed to macpaste.m

@@ -17,6 +17,7 @@
 #include <ApplicationServices/ApplicationServices.h>
 #include <Carbon/Carbon.h> // kVK_ANSI_*
 #include <sys/time.h> // gettimeofday
+#include <AppKit/NSCursor.h>
 
 char isDragging = 0;
 long long prevClickTime = 0;
@@ -25,7 +26,7 @@ long long curClickTime = 0;
 CGEventTapLocation tapA = kCGAnnotatedSessionEventTap;
 CGEventTapLocation tapH = kCGHIDEventTap;
 
-#define DOUBLE_CLICK_MILLIS 500
+#define DOUBLE_CLICK_MILLIS 200
 
 long long now() {
   struct timeval te;
@@ -99,7 +100,9 @@ static void paste(CGEventRef event) {
       {
         case kCGEventOtherMouseDown:
         button = CGEventGetIntegerValueField(event, kCGMouseEventButtonNumber);
-        if (*dontpaste == 0 && button == 2)
+        NSCursor* cursor = [NSCursor currentSystemCursor];
+        NSCursor* ibeam = [NSCursor IBeamCursor];
+        if (*dontpaste == 0 && button == 2 && NSEqualPoints([cursor hotSpot] , [ibeam hotSpot] ))
           paste( event );
         break;
 
@@ -134,6 +137,7 @@ static void paste(CGEventRef event) {
       CFMachPortRef myEventTap;
       CFRunLoopSourceRef eventTapRLSrc;
 
+
       // parse args for -n flag
       int c;
       int dontpaste = 0;
@@ -152,6 +156,7 @@ static void paste(CGEventRef event) {
       CGEventMaskBit( kCGEventLeftMouseDown ) |
       CGEventMaskBit( kCGEventLeftMouseUp )   |
       CGEventMaskBit( kCGEventLeftMouseDragged );
+      NSApplicationLoad();
 
       // Create the Tap
       myEventTap = CGEventTapCreate (