Copy on triple click

Instead of copy on double click, do copy on triple click because
that's unlikely to be followed by an immediate paste, but does
highlight eg browser url bar which is usually worth a copy.

Author: josephlbarnett

macpaste.m

@@ -20,11 +20,23 @@
 #include <AppKit/NSCursor.h>
 
 char isDragging = 0;
+long long prevPrevClickTime = 0;
+long long prevClickTime = 0;
+long long curClickTime = 0;
 NSPoint initialLocation;
 
 CGEventTapLocation tapA = kCGAnnotatedSessionEventTap;
 CGEventTapLocation tapH = kCGHIDEventTap;
 
+#define TRIPLE_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 );
@@ -65,6 +77,16 @@ static void copy() {
       CFRelease( source );
     }
 
+    static void recordClickTime() {
+      prevPrevClickTime = prevClickTime;
+      prevClickTime = curClickTime;
+      curClickTime = now();
+    }
+
+    static char isTripleClick() {
+      return ( curClickTime - prevPrevClickTime ) < TRIPLE_CLICK_MILLIS;
+    }
+
     static CGEventRef mouseCallback (
       CGEventTapProxy proxy,
       CGEventType type,
@@ -85,8 +107,17 @@ static CGEventRef mouseCallback (
         }
         break;
 
+        case kCGEventLeftMouseDown:
+        //NSLog(@"down %@", NSStringFromPoint( [NSEvent mouseLocation]));
+        recordClickTime();
+        break;
+
         case kCGEventLeftMouseUp:
         //NSLog(@"up %@", NSStringFromPoint( [NSEvent mouseLocation]));
+        if (isTripleClick()) {
+        NSLog(@"copytrlc %@", NSStringFromPoint( [NSEvent mouseLocation]));
+          copy();
+        }
         if (isDragging) {
             NSPoint clickLocation = [NSEvent mouseLocation];
             int xdiff = fabs(initialLocation.x-clickLocation.x);