403 lines
14 KiB
Swift
403 lines
14 KiB
Swift
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//
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// TitleTextView.swift
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// Crush
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//
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// Created by Leon on 2025/7/20.
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//
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import UIKit
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import SnapKit
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private let defaultHeightForTextView: CGFloat = 140.0
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class TitleTextView: UIView, UITextViewDelegate {
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// MARK: - Properties
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var textDidChanged: ((CLTextView) -> Void)?
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var textDidEndEditing: ((CLTextView) -> Void)?
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var textDidBeginEditing: ((CLTextView) -> Void)?
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var textShouldBeginEditing: ((CLTextView) -> Void)?
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var maxLimit: Int = 0 {
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didSet {
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if maxLimit > 0 {
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countLabel.isHidden = false
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countLabel.text = "0/\(maxLimit)"
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textView.limit.maxCharacterNumber = maxLimit
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textView.snp.updateConstraints { make in
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make.bottom.equalTo(textContainer).offset(-48)
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}
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}
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}
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}
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var minLimit: Int = 0
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var titleLabel: UILabel
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var textView: CLTextView
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var supportLabel: UILabel
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var placeholder: String? {
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didSet {
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textView.placeholder = placeholder
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}
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}
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/// 同时更新countLabel
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var defaultText: String?{
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didSet{
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textView.text = defaultText
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DispatchQueue.main.asyncAfter(deadline: .now() + 0.1) {[weak self] in
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guard let self = self else{return}
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self.subTextDidChange(self.textView)
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}
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}
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}
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var errorMsg: String?
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/// 配置固定高度
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var constHeightOfTextView: CGFloat = 0
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private var stackV: UIStackView
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private var textContainer: UIView
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private var countLabel: UILabel
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private var optionLabel: EPOptionFlagLabel?
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private var queryButton: EPIconTertiaryButton?
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private var lastText: String?
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private var location: Int = 0
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private var length: Int = 0
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private var focusBorderColor: UIColor
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private var errorBorderColor: UIColor
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private var nowBorderColor: UIColor
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private var errorBorderShowMode: Bool = false
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private var realDefaultHeightForTextView: CGFloat
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private var tapQueryButton: (() -> Void)?
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// MARK: - Initialization
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override init(frame: CGRect) {
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titleLabel = UILabel()
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textView = CLTextView()
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supportLabel = UILabel()
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stackV = UIStackView()
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textContainer = UIView()
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countLabel = UILabel()
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focusBorderColor = .c.cpvn
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errorBorderColor = .c.civn
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nowBorderColor = .clear
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realDefaultHeightForTextView = defaultHeightForTextView
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super.init(frame: frame)
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initialViews()
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}
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@available(*, unavailable)
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required init?(coder: NSCoder) {
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fatalError("init(coder:) has not been implemented")
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}
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// MARK: - Setup
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private func initialViews() {
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// Configure stack view
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stackV.axis = .vertical
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stackV.alignment = .leading
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stackV.spacing = 16
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addSubview(stackV)
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stackV.snp.makeConstraints { make in
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make.top.bottom.leading.trailing.equalTo(self)
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}
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// Configure title label
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titleLabel.font = CLSystemToken.font(token: .tlm)//EPSystemToken.typography(.txtLabelM).font
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titleLabel.textColor = .c.ctpn
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// Configure text container
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textContainer.backgroundColor = .c.csen
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textContainer.layer.cornerRadius = CLSystemToken.radius(token: .rs)
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textContainer.layer.borderWidth = CLSystemToken.border(token: .bs)//EPSystemToken.border(.borderS)
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textContainer.layer.borderColor = UIColor.clear.cgColor
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// Configure text view
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textView.delegate = self
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textView.backgroundColor = .clear
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textView.font = CLSystemToken.font(token: .tbl)//EPSystemToken.typography(.txtBodyL).font
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textView.placeholderLabel.font = CLSystemToken.font(token: .tbl)
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//textView.iqPlaceholderLabel?.font = EPSystemToken.typography(.txtBodyL).font
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textView.placeholderTextColor = .c.cttn
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textView.textColor = .c.ctpn
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textContainer.addSubview(textView)
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textView.snp.makeConstraints { make in
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make.top.equalTo(textContainer).offset(8)
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make.leading.equalTo(textContainer).offset(16)
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make.trailing.equalTo(textContainer).offset(-16)
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make.bottom.equalTo(textContainer).offset(-16)
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make.height.greaterThanOrEqualTo(realDefaultHeightForTextView)
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make.height.equalTo(defaultHeightForTextView)
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}
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// Update text view height based on placeholder size
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textView.updateByPlaceholderSize { [weak self] rect in
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guard let self = self, rect.size.height > defaultHeightForTextView else { return }
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self.realDefaultHeightForTextView = rect.size.height
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self.textView.snp.updateConstraints { make in
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make.height.greaterThanOrEqualTo(rect.size.height)
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}
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}
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// Configure count label
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countLabel.font = CLSystemToken.font(token: .tbs)//EPSystemToken.typography(.txtBodyS).font
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countLabel.textColor = .c.ctsn//EPSystemToken.color(.txtSecondaryNormal)
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textContainer.addSubview(countLabel)
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countLabel.snp.makeConstraints { make in
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make.trailing.equalTo(textContainer).offset(-16)
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make.bottom.equalTo(textContainer).offset(-16)
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}
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// Configure support label
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supportLabel.numberOfLines = 0
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supportLabel.font = .t.tbs//EPSystemToken.typography(.txtBodyS).font
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supportLabel.textColor = .c.ctsn// EPSystemToken.color(.txtSecondaryNormal)
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supportLabel.isHidden = true
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// Add subviews to stack
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stackV.addArrangedSubview(titleLabel)
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stackV.addArrangedSubview(textContainer)
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stackV.addArrangedSubview(supportLabel)
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textContainer.snp.makeConstraints { make in
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make.left.right.equalTo(stackV)
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}
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setupNotStrictCheck()
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}
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private func setupNotStrictCheck() {
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textView.autocapitalizationType = .none
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textView.autocorrectionType = .no
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}
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// MARK: - Public Methods
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func showErrorMsg(_ string: String) {
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supportLabel.isHidden = false
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supportLabel.textColor = .c.civn//EPSystemToken.color(.importantVariantNormal)
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supportLabel.text = string
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textContainer.layer.borderColor = errorBorderColor.cgColor
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errorBorderShowMode = true
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setNeedsLayout()
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}
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func hideErrorMsg() {
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supportLabel.isHidden = true
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supportLabel.textColor = .c.ctsn
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textContainer.layer.borderColor = textView.isFirstResponder ? focusBorderColor.cgColor : UIColor.clear.cgColor
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errorBorderShowMode = false
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setNeedsLayout()
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}
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// func configDefaultText(_ txt: String?) {
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// guard let txt = txt else { return }
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// textView.text = txt
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// if !txt.removingWhitespaceAndNewlines.isEmpty {
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// textViewDidChange(textView)
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// }
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// }
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func setupTextSync(_ text: String?) {
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textView.text = text
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subTextDidChange(textView)
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}
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func titleAppendOptionalLabel() {
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if optionLabel == nil {
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optionLabel = {
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let v = EPOptionFlagLabel()
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addSubview(v )
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v.snp.makeConstraints { make in
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make.leading.equalTo(titleLabel.snp.trailing).offset(8)
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make.centerY.equalTo(titleLabel)
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}
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return v
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}()
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}
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optionLabel?.isHidden = false
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}
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func titleAppendQuestionIcon(_ block: @escaping () -> Void) {
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if queryButton == nil {
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tapQueryButton = block
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queryButton = EPIconTertiaryButton(radius: .round, iconSize: .xxs, iconCode: .question)
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queryButton?.touchAreaInsets = UIEdgeInsets(top: 10, left: 10, bottom: 10, right: 10)
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queryButton?.addTarget(self, action: #selector(tapQueryBtn), for: .touchUpInside)
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addSubview(queryButton!)
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queryButton?.snp.makeConstraints { make in
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make.leading.equalTo(titleLabel.snp.trailing).offset(8)
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make.centerY.equalTo(titleLabel)
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make.trailing.lessThanOrEqualTo(self).offset(-8)
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}
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}
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queryButton?.isHidden = false
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}
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func setupMaxShowLineAndTruncatingTail(_ line: Int) {
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textView.isScrollEnabled = false
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textView.textContainer.maximumNumberOfLines = line
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textView.textContainer.lineBreakMode = .byTruncatingTail
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}
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func setupTest() {
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titleLabel.text = "Label.M"
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countLabel.text = "0/100"
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maxLimit = 100
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}
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// MARK: - Functions
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private func refreshViewsAboutMinLimitOrmaxLimit(){
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if maxLimit > 0 {
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countLabel.text = "\(textView.text.count)/\(maxLimit)"
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}
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if minLimit > 0{
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if textView.text.count < minLimit && textView.text.count > 0{
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if let msg = errorMsg{
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showErrorMsg(msg)
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}else{
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dlog("⚠️error msg未设置[TitleTextView]")
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}
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}else{
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hideErrorMsg()
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}
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}
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}
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private func refreshTextViewsHeight(){
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let calHeight = textView.sizeThatFits(CGSize(width: textView.bounds.width, height: .greatestFiniteMagnitude)).height
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//print("calHeight: \(calHeight), realDefaultHeightForTextView: \(realDefaultHeightForTextView)")
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if constHeightOfTextView > 0 && !(textView.text.isEmpty) {
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textView.snp.updateConstraints { make in
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make.height.equalTo(constHeightOfTextView)
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}
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} else if calHeight > realDefaultHeightForTextView {
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if textView.bounds.height != calHeight {
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textView.snp.updateConstraints { make in
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make.height.equalTo(calHeight)
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}
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}
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} else {
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if textView.bounds.height != realDefaultHeightForTextView {
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textView.snp.updateConstraints { make in
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make.height.equalTo(realDefaultHeightForTextView)
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}
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}
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}
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layoutIfNeeded()
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}
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// MARK: - Actions
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@objc private func tapQueryBtn() {
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tapQueryButton?()
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}
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// MARK: - Overrides
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override func becomeFirstResponder() -> Bool {
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textView.becomeFirstResponder()
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}
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// MARK: - UITextViewDelegate
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func subTextDidChange(_ textView: CLTextView) {
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errorBorderShowMode = false
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nowBorderColor = focusBorderColor
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if textView.isFirstResponder {
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textContainer.layer.borderColor = nowBorderColor.cgColor
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}
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// Handle text length limiting
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if textView.markedTextRange == nil {
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let nsTextContent = textView.text ?? ""
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let existTextNum = nsTextContent.count
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if existTextNum > maxLimit && maxLimit > 0 {
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// Convert maxLimit - 1 to String.Index
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if let stringIndex = nsTextContent.index(nsTextContent.startIndex, offsetBy: maxLimit - 1, limitedBy: nsTextContent.endIndex) {
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let range = nsTextContent.rangeOfComposedCharacterSequence(at: stringIndex)
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var str = String(nsTextContent.prefix(maxLimit))
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// Convert range.upperBound to an Int offset for comparison
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let upperBoundOffset = nsTextContent.distance(from: nsTextContent.startIndex, to: range.upperBound)
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if upperBoundOffset > maxLimit {
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str = String(nsTextContent.prefix(upTo: range.lowerBound))
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}
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textView.text = str
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} else {
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// Handle out-of-bounds case
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textView.text = ""
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}
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}
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lastText = textView.text
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} else {
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let markRange = textView.markedTextRange
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let beginning = textView.beginningOfDocument
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let selectionStart = markRange?.start
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let selectionEnd = markRange?.end
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location = selectionStart != nil ? textView.offset(from: beginning, to: selectionStart!) : 0
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length = (selectionStart != nil && selectionEnd != nil) ? textView.offset(from: selectionStart!, to: selectionEnd!) : 0
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}
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refreshViewsAboutMinLimitOrmaxLimit()
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refreshTextViewsHeight()
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}
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func textViewDidChange(_ textView: UITextView) {
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subTextDidChange(textView as! CLTextView)
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textDidChanged?(self.textView)
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}
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func textViewDidBeginEditing(_ textView: UITextView) {
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if !errorBorderShowMode {
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textContainer.layer.borderColor = focusBorderColor.cgColor
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}
|
|||
|
|
textDidBeginEditing?(self.textView)
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
func textViewDidEndEditing(_ textView: UITextView) {
|
|||
|
|
if !errorBorderShowMode {
|
|||
|
|
textContainer.layer.borderColor = UIColor.clear.cgColor
|
|||
|
|
}
|
|||
|
|
textDidEndEditing?(self.textView)
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
func textView(_ textView: UITextView, shouldChangeTextIn range: NSRange, replacementText text: String) -> Bool {
|
|||
|
|
if text.isEmpty || maxLimit == 0 {
|
|||
|
|
return true
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
if textView.markedTextRange == nil {
|
|||
|
|
if (lastText?.count ?? 0) == maxLimit {
|
|||
|
|
return false
|
|||
|
|
}
|
|||
|
|
location = range.location
|
|||
|
|
length = text.count
|
|||
|
|
}
|
|||
|
|
return true
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
func textViewShouldBeginEditing(_ textView: UITextView) -> Bool {
|
|||
|
|
textShouldBeginEditing?(self.textView)
|
|||
|
|
return textShouldBeginEditing == nil
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// MARK: - Extensions
|
|||
|
|
extension String {
|
|||
|
|
var removingWhitespaceAndNewlines: String {
|
|||
|
|
components(separatedBy: .whitespacesAndNewlines).joined()
|
|||
|
|
}
|
|||
|
|
}
|