//
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// IQTitleBarButtonItem.swift
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// https://github.com/hackiftekhar/IQKeyboardManager
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// Copyright (c) 2013-24 Iftekhar Qurashi.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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import UIKit
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@available(iOSApplicationExtension, unavailable)
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@MainActor
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@objc open class IQTitleBarButtonItem: IQBarButtonItem {
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@objc open var titleFont: UIFont? {
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didSet {
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if let unwrappedFont: UIFont = titleFont {
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titleButton?.titleLabel?.font = unwrappedFont
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} else {
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titleButton?.titleLabel?.font = UIFont.systemFont(ofSize: 13)
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}
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}
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}
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@objc override open var title: String? {
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didSet {
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titleButton?.setTitle(title, for: .normal)
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updateAccessibility()
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}
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}
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/**
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titleColor to be used for displaying button text when displaying title (disabled state).
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*/
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@objc open var titleColor: UIColor? {
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didSet {
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if let color: UIColor = titleColor {
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titleButton?.setTitleColor(color, for: .disabled)
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} else {
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titleButton?.setTitleColor(UIColor.lightGray, for: .disabled)
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}
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}
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}
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/**
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selectableTitleColor to be used for displaying button text when button is enabled.
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*/
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@objc open var selectableTitleColor: UIColor? {
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didSet {
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if let color: UIColor = selectableTitleColor {
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titleButton?.setTitleColor(color, for: .normal)
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} else {
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titleButton?.setTitleColor(UIColor.systemBlue, for: .normal)
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}
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}
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}
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internal var titleButton: UIButton?
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private var _titleView: UIView?
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override init() {
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super.init()
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}
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@objc public convenience init(title: String?) {
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self.init(title: nil, style: .plain, target: nil, action: nil)
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_titleView = UIView()
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_titleView?.backgroundColor = UIColor.clear
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titleButton = UIButton(type: .system)
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titleButton?.isAccessibilityElement = false
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titleButton?.isEnabled = false
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titleButton?.titleLabel?.numberOfLines = 3
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titleButton?.setTitleColor(UIColor.lightGray, for: .disabled)
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titleButton?.setTitleColor(UIColor.systemBlue, for: .normal)
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titleButton?.backgroundColor = UIColor.clear
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titleButton?.titleLabel?.textAlignment = .center
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titleButton?.setTitle(title, for: .normal)
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titleFont = UIFont.systemFont(ofSize: 13.0)
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titleButton?.titleLabel?.font = self.titleFont
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_titleView?.addSubview(titleButton!)
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let lowPriority: UILayoutPriority = UILayoutPriority(rawValue: UILayoutPriority.defaultLow.rawValue-1)
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let highPriority: UILayoutPriority = UILayoutPriority(rawValue: UILayoutPriority.defaultHigh.rawValue-1)
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_titleView?.translatesAutoresizingMaskIntoConstraints = false
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_titleView?.setContentHuggingPriority(lowPriority, for: .vertical)
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_titleView?.setContentHuggingPriority(lowPriority, for: .horizontal)
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_titleView?.setContentCompressionResistancePriority(highPriority, for: .vertical)
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_titleView?.setContentCompressionResistancePriority(highPriority, for: .horizontal)
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titleButton?.translatesAutoresizingMaskIntoConstraints = false
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titleButton?.setContentHuggingPriority(lowPriority, for: .vertical)
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titleButton?.setContentHuggingPriority(lowPriority, for: .horizontal)
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titleButton?.setContentCompressionResistancePriority(highPriority, for: .vertical)
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titleButton?.setContentCompressionResistancePriority(highPriority, for: .horizontal)
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let top: NSLayoutConstraint = NSLayoutConstraint(item: titleButton!, attribute: .top,
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relatedBy: .equal,
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toItem: _titleView, attribute: .top,
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multiplier: 1, constant: 0)
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let bottom: NSLayoutConstraint = NSLayoutConstraint(item: titleButton!, attribute: .bottom,
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relatedBy: .equal,
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toItem: _titleView, attribute: .bottom,
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multiplier: 1, constant: 0)
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let leading: NSLayoutConstraint = NSLayoutConstraint(item: titleButton!, attribute: .leading,
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relatedBy: .equal,
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toItem: _titleView, attribute: .leading,
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multiplier: 1, constant: 0)
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let trailing: NSLayoutConstraint = NSLayoutConstraint(item: titleButton!, attribute: .trailing,
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relatedBy: .equal,
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toItem: _titleView, attribute: .trailing,
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multiplier: 1, constant: 0)
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_titleView?.addConstraints([top, bottom, leading, trailing])
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customView = _titleView
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}
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@objc required public init?(coder aDecoder: NSCoder) {
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super.init(coder: aDecoder)
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}
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private func updateAccessibility() {
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if title == nil || title?.isEmpty == true {
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isAccessibilityElement = false
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// Swift 6: Reference to static property 'none'
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// is not concurrency-safe because it involves shared mutable state
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// accessibilityTraits = .none
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accessibilityTraits = .init(rawValue: 0)
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} else if titleButton?.isEnabled == true {
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isAccessibilityElement = true
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// Swift 6: Reference to static property 'button'
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// is not concurrency-safe because it involves shared mutable state
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// accessibilityTraits = .button
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accessibilityTraits = .init(rawValue: 1)
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} else {
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isAccessibilityElement = true
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// Swift 6: Reference to static property 'staticText'
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// is not concurrency-safe because it involves shared mutable state
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// accessibilityTraits = .staticText
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accessibilityTraits = .init(rawValue: 64)
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}
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}
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}
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