suixinkan_uikit/Pods/IQKeyboardManagerSwift/IQKeyboardManagerSwift/IQKeyboardManager/IQKeyboardManagerExtension/UIView+IQKeyboardManagerExtension.swift

//
//  UIView+IQKeyboardManagerExtension.swift
//  https://github.com/hackiftekhar/IQKeyboardManager
//  Copyright (c) 2013-24 Iftekhar Qurashi.
//
//  Permission is hereby granted, free of charge, to any person obtaining a copy
//  of this software and associated documentation files (the "Software"), to deal
//  in the Software without restriction, including without limitation the rights
//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
//  copies of the Software, and to permit persons to whom the Software is
//  furnished to do so, subject to the following conditions:
//
//  The above copyright notice and this permission notice shall be included in
//  all copies or substantial portions of the Software.
//
//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
//  THE SOFTWARE.

import UIKit
import IQKeyboardCore

@available(iOSApplicationExtension, unavailable)
@MainActor
private struct AssociatedKeys {
    static var distanceFromKeyboard: Int = 0
    static var enableMode: Int = 0
}

@available(iOSApplicationExtension, unavailable)
@MainActor
@objc public extension UIView {
    nonisolated static let defaultKeyboardDistance: CGFloat = .greatestFiniteMagnitude
}

@available(iOSApplicationExtension, unavailable)
@available(*, unavailable, renamed: "UIView.defaultKeyboardDistance")
nonisolated public let kIQUseDefaultKeyboardDistance: CGFloat = .greatestFiniteMagnitude

/**
 Extension providing keyboard management functionality to UIView instances.

 This extension allows per-view configuration of keyboard behavior, including
 custom distance and enable/disable modes.

 ## Usage
 ```swift
 // Set custom distance for a text field
 textField.iq.distanceFromKeyboard = 30.0

 // Disable keyboard management for a specific text field
 textField.iq.enableMode = .disabled
 ```
 */
@available(iOSApplicationExtension, unavailable)
@MainActor
public extension IQKeyboardExtension where Base: IQTextInputView {

    /**
     Custom distance from keyboard for this specific text input view.

     If set to `UIView.defaultKeyboardDistance`, the global `keyboardDistance`
     value from `IQKeyboardManager.shared.keyboardDistance` will be used.
     Otherwise, this value takes precedence.

     - Default: `UIView.defaultKeyboardDistance` (uses global setting)
     - Note: Value cannot be negative. Negative values may cause unexpected behavior.

     ## Example
     ```swift
     // Use global setting
     textField.iq.distanceFromKeyboard = UIView.defaultKeyboardDistance

     // Use custom distance
     textField.iq.distanceFromKeyboard = 50.0
     ```
     */
    var distanceFromKeyboard: CGFloat {
        get {
            if let base = base {
                if let value = objc_getAssociatedObject(base, &AssociatedKeys.distanceFromKeyboard) as? CGFloat {
                    return value
                }
            }
            return UIView.defaultKeyboardDistance
        }
        set(newValue) {
            if let base = base {
                objc_setAssociatedObject(base, &AssociatedKeys.distanceFromKeyboard,
                                         newValue, .OBJC_ASSOCIATION_RETAIN_NONATOMIC)
            }

            if newValue < 0 {
                IQKeyboardManager.shared.showLog("Warning: distanceFromKeyboard shouldn't be negative.")
            }
        }
    }

    /**
     Enable mode for this specific text input view.

     Controls whether keyboard management is enabled, disabled, or uses the default
     global setting for this view.

     - `.default`: Use global `IQKeyboardManager.shared.isEnabled` setting
     - `.enabled`: Force enable keyboard management for this view
     - `.disabled`: Force disable keyboard management for this view

     ## Example
     ```swift
     // Use global setting
     textField.iq.enableMode = .default

     // Always enable for this field
     textField.iq.enableMode = .enabled

     // Always disable for this field
     textField.iq.enableMode = .disabled
     ```

     - SeeAlso: `IQKeyboardManager.isEnabled` for global control
     */
    var enableMode: IQEnableMode {
        get {
            if let base = base {
                return objc_getAssociatedObject(base, &AssociatedKeys.enableMode) as? IQEnableMode ?? .default
            }
            return .default
        }
        set(newValue) {
            if let base = base {
                objc_setAssociatedObject(base, &AssociatedKeys.enableMode, newValue, .OBJC_ASSOCIATION_RETAIN_NONATOMIC)
            }
        }
    }
}

// swiftlint:disable unused_setter_value
@available(iOSApplicationExtension, unavailable)
@MainActor
@objc public extension UIView {
    @available(*, unavailable, renamed: "iq.distanceFromKeyboard")
    var keyboardDistanceFromTextField: CGFloat {
        get { 0 }
        set { }
    }

    @available(*, unavailable, renamed: "iq.enableMode")
    var enableMode: IQEnableMode {
        get { .default }
        set { }
    }
}
// swiftlint:enable unused_setter_value