108 lines
3.3 KiB
Swift
108 lines
3.3 KiB
Swift
//
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// TextField.swift
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// VDS
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//
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// Created by Matt Bruce on 5/1/24.
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//
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import Foundation
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import UIKit
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@objc(VDSTextField)
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open class TextField: UITextField {
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//--------------------------------------------------
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// MARK: - Initializers
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//--------------------------------------------------
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required public init() {
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super.init(frame: .zero)
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initialSetup()
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}
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public override init(frame: CGRect) {
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super.init(frame: .zero)
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initialSetup()
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}
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public required init?(coder: NSCoder) {
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super.init(coder: coder)
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initialSetup()
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}
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var horizontalPadding: CGFloat = 0
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open override func textRect(forBounds bounds: CGRect) -> CGRect {
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let rect = super.textRect(forBounds: bounds)
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return rect.insetBy(dx: -horizontalPadding, dy: 0)
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}
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open override func editingRect(forBounds bounds: CGRect) -> CGRect {
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let rect = super.editingRect(forBounds: bounds)
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return rect.insetBy(dx: -horizontalPadding, dy: 0)
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}
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open override func placeholderRect(forBounds bounds: CGRect) -> CGRect {
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let rect = super.placeholderRect(forBounds: bounds)
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return rect.insetBy(dx: -horizontalPadding, dy: 0)
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}
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open override var isSecureTextEntry: Bool {
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didSet {
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if isFirstResponder {
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_ = becomeFirstResponder()
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}
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}
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}
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open func initialSetup() {
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let accessView = UIView(frame: .init(origin: .zero, size: .init(width: UIScreen.main.bounds.width, height: 44)))
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accessView.backgroundColor = .white
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accessView.addBorder(side: .top, width: 1, color: .lightGray)
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let done = UIButton(type: .system)
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done.setTitle("Done", for: .normal)
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done.translatesAutoresizingMaskIntoConstraints = false
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done.addTarget(self, action: #selector(doneButtonAction), for: .touchUpInside)
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accessView.addSubview(done)
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done.pinCenterY()
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.pinTrailing(16)
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inputAccessoryView = accessView
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}
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@objc func doneButtonAction() {
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// Resigns the first responder status when 'Done' is tapped
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resignFirstResponder()
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}
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open override func becomeFirstResponder() -> Bool {
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let success = super.becomeFirstResponder()
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if isSecureTextEntry, let text {
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self.text?.removeAll()
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insertText(text)
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}
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return success
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}
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}
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extension UITextField {
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public func cursorPosition(range: NSRange, replacementString string: String, rawNumber: String, formattedNumber: String) -> UITextPosition? {
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let start = range.location
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let length = string.count
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let newCursorLocation = start + length
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// Adjust the cursor position to skip over formatting characters
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var formattedCharacterCount = 0
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for (index, character) in formattedNumber.enumerated() {
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if index >= newCursorLocation + formattedCharacterCount {
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break
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}
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if !character.isNumber {
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formattedCharacterCount += 1
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}
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}
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let finalCursorLocation = min(newCursorLocation + formattedCharacterCount, formattedNumber.count)
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return position(from: beginningOfDocument, offset: finalCursorLocation)
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}
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}
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