/*

 Copyright (C) 2017 Apple Inc. All Rights Reserved.

 See LICENSE.txt for this sample’s licensing information

 Abstract:

 A basic NSView subclass that supports having an animatable background color (NOTE: the animation only works when the view is layer backed).

 */

#import "ATColorView.h"

@import Quartz; // for CABasicAnimation

@implementation ATColorView

+ (id)defaultAnimationForKey:(NSString *)key {

    if ([key isEqualToString:@"backgroundColor"]) {

        return [CABasicAnimation animation];

    }

    return [super defaultAnimationForKey:key];

}

- (void)setBackgroundColor:(NSColor *)value {

    if (_backgroundColor != value) {

        _backgroundColor = value;

        self.layer.backgroundColor = _backgroundColor.CGColor;

        [self setNeedsDisplay:YES];

    }

}

- (void)drawRect:(NSRect)r {

    NSColor *color = self.backgroundColor;

    if (color) {

        [color set];

        NSRectFill(r);

    }

    if (self.drawBorder) {

        [[NSColor lightGrayColor] set];

        NSFrameRectWithWidth(self.bounds, 1.0);

    }

    if (self.window.firstResponder == self) {

        NSSetFocusRingStyle(NSFocusRingOnly);

        NSRectFill(self.bounds);

    }

}

+ (Class)cellClass {

    // The cell is a container for the target/action

    return [NSActionCell class];

}

@end