//
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// IQKeyboardManager+UITextFieldViewNotification.swift
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// https://github.com/hackiftekhar/IQKeyboardManager
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// Copyright (c) 2013-20 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 Foundation - UIKit contains Foundation
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import UIKit
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// MARK: UITextField/UITextView Notifications
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@available(iOSApplicationExtension, unavailable)
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internal extension IQKeyboardManager {
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private struct AssociatedKeys {
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static var textFieldView: Int = 0
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static var topViewBeginOrigin: Int = 0
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static var topViewBeginSafeAreaInsets: Int = 0
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static var rootViewController: Int = 0
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static var rootViewControllerWhilePopGestureRecognizerActive: Int = 0
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static var topViewBeginOriginWhilePopGestureRecognizerActive: Int = 0
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}
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/** To save UITextField/UITextView object voa textField/textView notifications. */
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weak var textFieldView: UIView? {
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get {
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return (objc_getAssociatedObject(self, &AssociatedKeys.textFieldView) as? WeakObjectContainer)?.object as? UIView
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}
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set(newValue) {
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objc_setAssociatedObject(self, &AssociatedKeys.textFieldView, WeakObjectContainer(object: newValue), .OBJC_ASSOCIATION_RETAIN_NONATOMIC)
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}
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}
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var topViewBeginOrigin: CGPoint {
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get {
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return objc_getAssociatedObject(self, &AssociatedKeys.topViewBeginOrigin) as? CGPoint ?? IQKeyboardManager.kIQCGPointInvalid
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}
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set(newValue) {
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objc_setAssociatedObject(self, &AssociatedKeys.topViewBeginOrigin, newValue, .OBJC_ASSOCIATION_RETAIN_NONATOMIC)
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}
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}
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var topViewBeginSafeAreaInsets: UIEdgeInsets {
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get {
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return objc_getAssociatedObject(self, &AssociatedKeys.topViewBeginSafeAreaInsets) as? UIEdgeInsets ?? .zero
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}
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set(newValue) {
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objc_setAssociatedObject(self, &AssociatedKeys.topViewBeginSafeAreaInsets, newValue, .OBJC_ASSOCIATION_RETAIN_NONATOMIC)
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}
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}
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/** To save rootViewController */
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weak var rootViewController: UIViewController? {
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get {
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return (objc_getAssociatedObject(self, &AssociatedKeys.rootViewController) as? WeakObjectContainer)?.object as? UIViewController
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}
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set(newValue) {
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objc_setAssociatedObject(self, &AssociatedKeys.rootViewController, WeakObjectContainer(object: newValue), .OBJC_ASSOCIATION_RETAIN_NONATOMIC)
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}
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}
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/** To overcome with popGestureRecognizer issue Bug ID: #1361 */
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weak var rootViewControllerWhilePopGestureRecognizerActive: UIViewController? {
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get {
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return (objc_getAssociatedObject(self, &AssociatedKeys.rootViewControllerWhilePopGestureRecognizerActive) as? WeakObjectContainer)?.object as? UIViewController
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}
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set(newValue) {
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objc_setAssociatedObject(self, &AssociatedKeys.rootViewControllerWhilePopGestureRecognizerActive, WeakObjectContainer(object: newValue), .OBJC_ASSOCIATION_RETAIN_NONATOMIC)
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}
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}
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var topViewBeginOriginWhilePopGestureRecognizerActive: CGPoint {
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get {
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return objc_getAssociatedObject(self, &AssociatedKeys.topViewBeginOriginWhilePopGestureRecognizerActive) as? CGPoint ?? IQKeyboardManager.kIQCGPointInvalid
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}
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set(newValue) {
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objc_setAssociatedObject(self, &AssociatedKeys.topViewBeginOriginWhilePopGestureRecognizerActive, newValue, .OBJC_ASSOCIATION_RETAIN_NONATOMIC)
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}
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}
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/** UITextFieldTextDidBeginEditingNotification, UITextViewTextDidBeginEditingNotification. Fetching UITextFieldView object. */
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@objc func textFieldViewDidBeginEditing(_ notification: Notification) {
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guard let object = notification.object as? UIView, let isKeyWindow = object.window?.isKeyWindow, isKeyWindow else {
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return
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}
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let startTime = CACurrentMediaTime()
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showLog("📝>>>>> \(#function) started >>>>>", indentation: 1)
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showLog("Notification Object:\(notification.object ?? "NULL")")
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// Getting object
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textFieldView = notification.object as? UIView
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if overrideKeyboardAppearance, let textInput = textFieldView as? UITextInput, textInput.keyboardAppearance != keyboardAppearance {
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// Setting textField keyboard appearance and reloading inputViews.
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if let textFieldView = textFieldView as? UITextField {
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textFieldView.keyboardAppearance = keyboardAppearance
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} else if let textFieldView = textFieldView as? UITextView {
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textFieldView.keyboardAppearance = keyboardAppearance
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}
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textFieldView?.reloadInputViews()
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}
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// If autoToolbar enable, then add toolbar on all the UITextField/UITextView's if required.
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if privateIsEnableAutoToolbar() {
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// UITextView special case. Keyboard Notification is firing before textView notification so we need to resign it first and then again set it as first responder to add toolbar on it.
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if let textView = textFieldView as? UIScrollView, textView.responds(to: #selector(getter: UITextView.isEditable)),
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textView.inputAccessoryView == nil {
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self.addToolbarIfRequired()
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} else {
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// Adding toolbar
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addToolbarIfRequired()
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}
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} else {
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removeToolbarIfRequired()
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}
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resignFirstResponderGesture.isEnabled = privateShouldResignOnTouchOutside()
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textFieldView?.window?.addGestureRecognizer(resignFirstResponderGesture) // (Enhancement ID: #14)
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if privateIsEnabled() == false {
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restorePosition()
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topViewBeginOrigin = IQKeyboardManager.kIQCGPointInvalid
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topViewBeginSafeAreaInsets = .zero
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} else {
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if topViewBeginOrigin.equalTo(IQKeyboardManager.kIQCGPointInvalid) { // (Bug ID: #5)
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rootViewController = textFieldView?.parentContainerViewController()
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if let controller = rootViewController {
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if rootViewControllerWhilePopGestureRecognizerActive == controller {
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topViewBeginOrigin = topViewBeginOriginWhilePopGestureRecognizerActive
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} else {
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topViewBeginOrigin = controller.view.frame.origin
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topViewBeginSafeAreaInsets = controller.view.safeAreaInsets
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}
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rootViewControllerWhilePopGestureRecognizerActive = nil
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topViewBeginOriginWhilePopGestureRecognizerActive = IQKeyboardManager.kIQCGPointInvalid
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self.showLog("Saving \(controller) beginning origin: \(self.topViewBeginOrigin)")
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}
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}
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// If textFieldView is inside ignored responder then do nothing. (Bug ID: #37, #74, #76)
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// See notes:- https://developer.apple.com/library/ios/documentation/StringsTextFonts/Conceptual/TextAndWebiPhoneOS/KeyboardManagement/KeyboardManagement.html If it is UIAlertView textField then do not affect anything (Bug ID: #70).
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if keyboardShowing,
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let textFieldView = textFieldView,
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textFieldView.isAlertViewTextField() == false {
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// keyboard is already showing. adjust position.
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self.adjustPosition()
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}
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}
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let elapsedTime = CACurrentMediaTime() - startTime
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showLog("📝<<<<< \(#function) ended: \(elapsedTime) seconds <<<<<", indentation: -1)
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}
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/** UITextFieldTextDidEndEditingNotification, UITextViewTextDidEndEditingNotification. Removing fetched object. */
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@objc func textFieldViewDidEndEditing(_ notification: Notification) {
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guard let object = notification.object as? UIView, let isKeyWindow = object.window?.isKeyWindow, isKeyWindow else {
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return
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}
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let startTime = CACurrentMediaTime()
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showLog("📝>>>>> \(#function) started >>>>>", indentation: 1)
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showLog("Notification Object:\(notification.object ?? "NULL")")
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// Removing gesture recognizer (Enhancement ID: #14)
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textFieldView?.window?.removeGestureRecognizer(resignFirstResponderGesture)
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// We check if there's a change in original frame or not.
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if let textView = textFieldView as? UIScrollView, textView.responds(to: #selector(getter: UITextView.isEditable)) {
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if isTextViewContentInsetChanged {
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self.isTextViewContentInsetChanged = false
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if textView.contentInset != self.startingTextViewContentInsets {
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self.showLog("Restoring textView.contentInset to: \(self.startingTextViewContentInsets)")
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UIView.animate(withDuration: animationDuration, delay: 0, options: animationCurve, animations: { () -> Void in
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// Setting textField to it's initial contentInset
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textView.contentInset = self.startingTextViewContentInsets
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textView.scrollIndicatorInsets = self.startingTextViewScrollIndicatorInsets
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}, completion: { (_) -> Void in })
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}
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}
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}
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// Setting object to nil
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#if swift(>=5.7)
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if #available(iOS 16.0, *), let textView = object as? UITextView, textView.isFindInteractionEnabled {
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// Not setting it nil, because it may be doing find interaction.
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// As of now, here textView.findInteraction?.isFindNavigatorVisible returns false
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// So there is no way to detect if this is dismissed due to findInteraction
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} else {
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textFieldView = nil
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}
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#else
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textFieldView = nil
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#endif
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let elapsedTime = CACurrentMediaTime() - startTime
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showLog("📝<<<<< \(#function) ended: \(elapsedTime) seconds <<<<<", indentation: -1)
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}
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}
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