//
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// IQActiveConfiguration.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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internal final class IQActiveConfiguration {
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private let keyboardListener: IQKeyboardListener = IQKeyboardListener()
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private let textFieldViewListener: IQTextFieldViewListener = IQTextFieldViewListener()
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private var changeObservers: [AnyHashable: ConfigurationCompletion] = [:]
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@objc public enum Event: Int {
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case hide
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case show
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case change
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var name: String {
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switch self {
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case .hide:
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return "hide"
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case .show:
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return "show"
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case .change:
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return "change"
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}
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}
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}
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private var lastEvent: Event = .hide
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var rootControllerConfiguration: IQRootControllerConfiguration?
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var isReady: Bool {
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if textFieldViewInfo != nil,
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let rootControllerConfiguration = rootControllerConfiguration {
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return rootControllerConfiguration.isReady
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}
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return false
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}
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init() {
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addKeyboardListener()
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addTextFieldViewListener()
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}
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private func sendEvent() {
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if let rootControllerConfiguration = rootControllerConfiguration,
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rootControllerConfiguration.isReady {
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if keyboardInfo.keyboardShowing {
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if lastEvent == .hide {
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self.notify(event: .show, keyboardInfo: keyboardInfo, textFieldViewInfo: textFieldViewInfo)
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} else {
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self.notify(event: .change, keyboardInfo: keyboardInfo, textFieldViewInfo: textFieldViewInfo)
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}
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} else if lastEvent != .hide {
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if rootControllerConfiguration.beginOrientation == rootControllerConfiguration.currentOrientation {
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self.notify(event: .hide, keyboardInfo: keyboardInfo, textFieldViewInfo: textFieldViewInfo)
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self.rootControllerConfiguration = nil
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} else if rootControllerConfiguration.hasChanged {
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animate(alongsideTransition: {
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rootControllerConfiguration.restore()
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}, completion: nil)
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}
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}
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}
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}
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private func updateRootController(info: IQTextFieldViewInfo?) {
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guard let info = info,
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let controller: UIViewController = info.textFieldView.iq.parentContainerViewController() else {
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if let rootControllerConfiguration = rootControllerConfiguration,
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rootControllerConfiguration.hasChanged {
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animate(alongsideTransition: {
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rootControllerConfiguration.restore()
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}, completion: nil)
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}
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rootControllerConfiguration = nil
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return
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}
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let newConfiguration = IQRootControllerConfiguration(rootController: controller)
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if newConfiguration.rootController.view.window != rootControllerConfiguration?.rootController.view.window ||
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newConfiguration.beginOrientation != rootControllerConfiguration?.beginOrientation {
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if rootControllerConfiguration?.rootController != newConfiguration.rootController {
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// If there was an old configuration but things are changed
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if let rootControllerConfiguration = rootControllerConfiguration,
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rootControllerConfiguration.hasChanged {
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animate(alongsideTransition: {
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rootControllerConfiguration.restore()
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}, completion: nil)
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}
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}
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rootControllerConfiguration = newConfiguration
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}
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}
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}
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@available(iOSApplicationExtension, unavailable)
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extension IQActiveConfiguration {
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var keyboardInfo: IQKeyboardInfo {
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return keyboardListener.keyboardInfo
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}
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private func addKeyboardListener() {
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keyboardListener.registerSizeChange(identifier: "IQActiveConfiguration", changeHandler: { [self] name, _ in
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if let info = textFieldViewInfo, keyboardInfo.keyboardShowing {
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if let rootControllerConfiguration = rootControllerConfiguration {
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let beginIsPortrait: Bool = rootControllerConfiguration.beginOrientation.isPortrait
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let currentIsPortrait: Bool = rootControllerConfiguration.currentOrientation.isPortrait
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if beginIsPortrait != currentIsPortrait {
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updateRootController(info: info)
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}
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} else {
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updateRootController(info: info)
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}
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}
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self.sendEvent()
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if name == .didHide {
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updateRootController(info: nil)
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}
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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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keyboardListener.animate(alongsideTransition: transition, completion: completion)
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}
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}
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@available(iOSApplicationExtension, unavailable)
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extension IQActiveConfiguration {
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var textFieldViewInfo: IQTextFieldViewInfo? {
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return textFieldViewListener.textFieldViewInfo
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}
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private func addTextFieldViewListener() {
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textFieldViewListener.registerTextFieldViewChange(identifier: "IQActiveConfiguration",
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changeHandler: { [self] info in
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if info.name == .beginEditing {
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updateRootController(info: info)
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self.sendEvent()
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}
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})
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}
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}
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@available(iOSApplicationExtension, unavailable)
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extension IQActiveConfiguration {
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typealias ConfigurationCompletion = (_ event: Event,
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_ keyboardInfo: IQKeyboardInfo,
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_ textFieldInfo: IQTextFieldViewInfo?) -> Void
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func registerChange(identifier: AnyHashable, changeHandler: @escaping ConfigurationCompletion) {
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changeObservers[identifier] = changeHandler
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}
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func unregisterChange(identifier: AnyHashable) {
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changeObservers[identifier] = nil
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}
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private func notify(event: Event, keyboardInfo: IQKeyboardInfo, textFieldViewInfo: IQTextFieldViewInfo?) {
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lastEvent = event
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for block in changeObservers.values {
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block(event, keyboardInfo, textFieldViewInfo)
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}
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}
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}
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