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import UIKit
@objc(SNTextField)
public final class TextField : UITextField {
private let usesDefaultHeight: Bool
private let height: CGFloat
private let horizontalInset: CGFloat
private let verticalInset: CGFloat
static let height: CGFloat = isIPhone5OrSmaller ? CGFloat(48) : CGFloat(80)
public static let cornerRadius: CGFloat = 8
@objc(initWithPlaceholder:usesDefaultHeight:)
public convenience init(placeholder: String, usesDefaultHeight: Bool) {
self.init(placeholder: placeholder, usesDefaultHeight: usesDefaultHeight, customHeight: nil, customHorizontalInset: nil, customVerticalInset: nil)
}
public init(placeholder: String, usesDefaultHeight: Bool = true, customHeight: CGFloat? = nil, customHorizontalInset: CGFloat? = nil, customVerticalInset: CGFloat? = nil) {
self.usesDefaultHeight = usesDefaultHeight
self.height = customHeight ?? TextField.height
self.horizontalInset = customHorizontalInset ?? (isIPhone5OrSmaller ? Values.mediumSpacing : Values.largeSpacing)
self.verticalInset = customVerticalInset ?? (isIPhone5OrSmaller ? Values.smallSpacing : Values.largeSpacing)
super.init(frame: CGRect.zero)
self.placeholder = placeholder
setUpStyle()
}
public override init(frame: CGRect) {
preconditionFailure("Use init(placeholder:) instead.")
}
public required init?(coder: NSCoder) {
preconditionFailure("Use init(placeholder:) instead.")
}
private func setUpStyle() {
textColor = Colors.text
font = .systemFont(ofSize: Values.smallFontSize)
let placeholder = NSMutableAttributedString(string: self.placeholder!)
let placeholderColor = Colors.text.withAlphaComponent(Values.mediumOpacity)
placeholder.addAttribute(.foregroundColor, value: placeholderColor, range: NSRange(location: 0, length: placeholder.length))
attributedPlaceholder = placeholder
tintColor = Colors.accent
keyboardAppearance = isLightMode ? .light : .dark
if usesDefaultHeight {
set(.height, to: height)
}
layer.borderColor = isLightMode ? Colors.text.cgColor : Colors.border.withAlphaComponent(Values.lowOpacity).cgColor
layer.borderWidth = 1
layer.cornerRadius = TextField.cornerRadius
}
public override func textRect(forBounds bounds: CGRect) -> CGRect {
if usesDefaultHeight {
return bounds.insetBy(dx: horizontalInset, dy: verticalInset)
} else {
return bounds.insetBy(dx: Values.mediumSpacing, dy: Values.smallSpacing)
}
}
public override func editingRect(forBounds bounds: CGRect) -> CGRect {
if usesDefaultHeight {
return bounds.insetBy(dx: horizontalInset, dy: verticalInset)
} else {
return bounds.insetBy(dx: Values.mediumSpacing, dy: Values.smallSpacing)
}
}
}