LightTable/ClickTracker.h
/* |
Copyright (C) 2017 Apple Inc. All Rights Reserved. |
See LICENSE.txt for this sample’s licensing information |
Abstract: |
The Click Tracker informs the view of single and double clicks. A single click is defined as a mouse down with a clickCount less than or equal to 1. A double click is a mouse up with a clickCount equal to 2. Tip: A view can easily change its behavior in response to a click by changing the action property. The owning view must route mouseDown: and mouseUp: responder messages to this tracker. |
*/ |
#import "InputTracker.h" |
@interface ClickTracker : InputTracker { |
SEL _action; |
SEL _doubleAction; |
NSPoint _location; |
NSUInteger _modifiers; |
} |
// The method to call on the view in response to a click. |
@property SEL action; |
// The method to call on the view in response to a double click. The method should have one paramenter (ClickTracker *) and a void return. |
@property SEL doubleAction; |
// The location of the cursor in the view's coordinate space during a click action. |
@property NSPoint location; |
// The modifier flags of the last event processed by the tracker. The returned value outside of the scope of the action or doubleAction callbacks is undefined. |
@property NSUInteger modifiers; |
@end |
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