TargetMouseScroll.m

   1 //
   2 //  TargetMouseScroll.m
   3 //  Enjoy
   4 //
   5 //  Created by Yifeng Huang on 7/28/12.
   6 //  Copyright (c) 2012 __MyCompanyName__. All rights reserved.
   7 //
   8
   9 #import "TargetMouseScroll.h"
  10
  11 @implementation TargetMouseScroll
  12
  13 @synthesize howMuch;
  14
  15 -(NSString*) stringify {
  16         return [[NSString alloc] initWithFormat: @"mscroll~%d", howMuch];
  17 }
  18
  19 +(TargetMouseScroll*) unstringifyImpl: (NSArray*) comps {
  20         NSParameterAssert([comps count] == 2);
  21         TargetMouseScroll* target = [[TargetMouseScroll alloc] init];
  22         [target setHowMuch: [comps[1] integerValue]];
  23         return target;
  24 }
  25
  26 -(void) trigger {
  27     CGEventRef scroll = CGEventCreateScrollWheelEvent(NULL,
  28                                                       kCGScrollEventUnitLine,
  29                                                       1,
  30                                                       [self howMuch]);
  31     CGEventPost(kCGHIDEventTap, scroll);
  32     CFRelease(scroll);
  33 }
  34
  35 @end