Hwee-Boon Yar
7 years ago
parent
3ad1166d59
commit
7873631ff8
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// Copyright © 2018 Stormbird PTE. LTD. |
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import UIKit |
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protocol AddressTextFieldDelegate: class { |
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func displayError(error: Error, for: AddressTextField) |
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func openQRCodeReader(for: AddressTextField) |
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func didPaste(in: AddressTextField) |
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func shouldReturn(in: AddressTextField) -> Bool |
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} |
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class AddressTextField: UIControl { |
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let label = UILabel() |
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let textField = UITextField() |
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var value: String { |
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get { |
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return textField.text ?? "" |
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} |
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set { |
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textField.text = newValue |
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} |
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} |
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var isConfigured = false |
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weak var delegate: AddressTextFieldDelegate? |
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override init(frame: CGRect) { |
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super.init(frame: frame) |
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textField.translatesAutoresizingMaskIntoConstraints = false |
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textField.delegate = self |
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textField.leftViewMode = .always |
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textField.rightViewMode = .always |
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addSubview(textField) |
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NSLayoutConstraint.activate([ |
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textField.leadingAnchor.constraint(equalTo: leadingAnchor), |
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textField.trailingAnchor.constraint(equalTo: trailingAnchor), |
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textField.topAnchor.constraint(equalTo: topAnchor), |
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textField.bottomAnchor.constraint(equalTo: bottomAnchor), |
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heightAnchor.constraint(equalToConstant: ScreenChecker().isNarrowScreen() ? 30 : 50), |
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]) |
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} |
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required init?(coder aDecoder: NSCoder) { |
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fatalError("init(coder:) has not been implemented") |
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} |
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override func layoutSubviews() { |
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super.layoutSubviews() |
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roundCornersBasedOnHeight() |
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} |
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private func roundCornersBasedOnHeight() { |
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textField.layer.cornerRadius = textField.frame.size.height / 2 |
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} |
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func configureOnce() { |
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guard !isConfigured else { return } |
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isConfigured = true |
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label.font = Fonts.regular(size: 10)! |
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label.textColor = Colors.appGrayLabelColor |
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textField.leftView = .spacerWidth(22) |
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textField.rightView = makeTargetAddressRightView() |
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textField.textColor = Colors.appText |
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textField.font = ScreenChecker().isNarrowScreen() ? Fonts.light(size: 11)! : Fonts.light(size: 15)! |
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textField.layer.borderColor = Colors.appBackground.cgColor |
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textField.layer.borderWidth = 1 |
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} |
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private func makeTargetAddressRightView() -> UIView { |
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let pasteButton = Button(size: .normal, style: .borderless) |
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pasteButton.translatesAutoresizingMaskIntoConstraints = false |
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pasteButton.setTitle(R.string.localizable.sendPasteButtonTitle(), for: .normal) |
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pasteButton.titleLabel?.font = Fonts.regular(size: 14)! |
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pasteButton.setTitleColor(Colors.appGrayLabelColor, for: .normal) |
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pasteButton.addTarget(self, action: #selector(pasteAction), for: .touchUpInside) |
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let scanQRCodeButton = Button(size: .normal, style: .borderless) |
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scanQRCodeButton.translatesAutoresizingMaskIntoConstraints = false |
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scanQRCodeButton.setImage(R.image.qr_code_icon(), for: .normal) |
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scanQRCodeButton.setTitleColor(Colors.appGrayLabelColor, for: .normal) |
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scanQRCodeButton.addTarget(self, action: #selector(openReader), for: .touchUpInside) |
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let targetAddressRightView = [pasteButton, scanQRCodeButton].asStackView(distribution: .equalSpacing) |
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targetAddressRightView.translatesAutoresizingMaskIntoConstraints = false |
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return targetAddressRightView |
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} |
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@objc func pasteAction() { |
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guard let value = UIPasteboard.general.string?.trimmed else { |
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delegate?.displayError(error: SendInputErrors.emptyClipBoard, for: self) |
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return |
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} |
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guard CryptoAddressValidator.isValidAddress(value) else { |
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delegate?.displayError(error: Errors.invalidAddress, for: self) |
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return |
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} |
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self.value = value |
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delegate?.didPaste(in: self) |
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} |
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@objc func openReader() { |
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delegate?.openQRCodeReader(for: self) |
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} |
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} |
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extension AddressTextField: UITextFieldDelegate { |
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func textFieldShouldReturn(_ textField: UITextField) -> Bool { |
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guard let delegate = delegate else { return true } |
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return delegate.shouldReturn(in: self) |
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} |
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} |
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