//
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// IQKeyboardInfo.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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public struct IQKeyboardInfo: Equatable {
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nonisolated public static func == (lhs: Self, rhs: Self) -> Bool {
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lhs.frame.equalTo(rhs.frame)
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}
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@objc public enum Name: Int {
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case willShow
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case didShow
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case willHide
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case didHide
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case willChangeFrame
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case didChangeFrame
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}
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public let name: Name
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/** To save keyboard frame. */
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public let frame: CGRect
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/** To save keyboard animation duration. */
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public let animationDuration: TimeInterval
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/** To mimic the keyboard animation */
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public let animationCurve: UIView.AnimationCurve
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public var keyboardShowing: Bool {
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frame.height > 0
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}
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public init(notification: Notification?, name: Name) {
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self.name = name
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let screenBounds: CGRect
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if let screen: UIScreen = notification?.object as? UIScreen {
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screenBounds = screen.bounds
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} else {
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screenBounds = UIScreen.main.bounds
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}
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if let info: [AnyHashable: Any] = notification?.userInfo {
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// Getting keyboard animation.
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if let curveValue: Int = info[UIResponder.keyboardAnimationCurveUserInfoKey] as? Int,
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let curve: UIView.AnimationCurve = UIView.AnimationCurve(rawValue: curveValue) {
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animationCurve = curve
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} else {
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animationCurve = .easeOut
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}
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// Getting keyboard animation duration
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if let duration: TimeInterval = info[UIResponder.keyboardAnimationDurationUserInfoKey] as? TimeInterval,
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duration != 0.0 {
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animationDuration = duration
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} else {
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animationDuration = 0.25
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}
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// Getting UIKeyboardSize.
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if var kbFrame: CGRect = info[UIResponder.keyboardFrameEndUserInfoKey] as? CGRect {
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// If this is floating keyboard
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if kbFrame.width < screenBounds.width,
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kbFrame.maxY < screenBounds.height {
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kbFrame.size = CGSize(width: kbFrame.size.width, height: 0)
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} else {
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// (Bug ID: #469) (Bug ID: #381) (Bug ID: #1506)
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// Calculating actual keyboard covered size respect to window,
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// keyboard frame may be different when hardware keyboard is attached
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let keyboardHeight = CGFloat.maximum(screenBounds.height - kbFrame.minY, 0)
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kbFrame.size = CGSize(width: kbFrame.size.width, height: keyboardHeight)
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}
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frame = kbFrame
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} else {
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frame = CGRect(x: 0, y: screenBounds.height, width: screenBounds.width, height: 0)
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}
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} else {
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animationCurve = .easeOut
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animationDuration = 0.25
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frame = CGRect(x: 0, y: screenBounds.height, width: screenBounds.width, height: 0)
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}
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}
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public func animate(alongsideTransition transition: @escaping () -> Void, completion: (() -> Void)? = nil) {
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// if let timing = UIView.AnimationCurve.RawValue(exactly: animationCurve.rawValue),
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// let curve = UIView.AnimationCurve(rawValue: timing) {
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// let animator = UIViewPropertyAnimator(duration: animationDuration, curve: curve) {
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// transition()
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// }
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// animator.addCompletion { _ in
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// completion?()
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// }
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// animator.isUserInteractionEnabled = true
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// animator.startAnimation()
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// } else {
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var animationOptions: UIView.AnimationOptions = .init(rawValue: UInt(animationCurve.rawValue << 16))
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animationOptions.formUnion(.allowUserInteraction)
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animationOptions.formUnion(.beginFromCurrentState)
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UIView.animate(withDuration: animationDuration, delay: 0,
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options: animationOptions,
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animations: transition,
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completion: { _ in
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completion?()
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})
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// }
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}
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}
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