//
//  Button.swift
//  Spruce
//
//  Copyright (c) 2017 WillowTree, Inc.

//  Permission is hereby granted, free of charge, to any person obtaining a copy
//  of this software and associated documentation files (the "Software"), to deal
//  in the Software without restriction, including without limitation the rights
//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
//  copies of the Software, and to permit persons to whom the Software is
//  furnished to do so, subject to the following conditions:

//  The above copyright notice and this permission notice shall be included in
//  all copies or substantial portions of the Software.

//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
//  THE SOFTWARE.
//

import UIKit

open class Button: UIButton {
    
    /// the stock animation that should be applied to the button upon press
    open var animation: StockAnimation = .expand(.slightly)
    
    /// the style of animation that should be used when animating the button
    open var animationType: Animation = StandardAnimation(duration: 0.2)
    
    override open var isHighlighted: Bool {
        didSet {
            let function: ChangeFunction
            if isHighlighted {
                function = animation.animationFunction
            }
            else {
                function = animation.prepareFunction
            }
            animationType.changeFunction = function
            animationType.animate(delay: 0.0, view: self, completion: nil)
        }
    }
}
