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//
// ModalPresentationConfiguration.swift
// MullvadVPN
//
// Created by pronebird on 14/03/2023.
// Copyright © 2023 Mullvad VPN AB. All rights reserved.
//
import UIKit
/**
A struct holding modal presentation configuration.
*/
@MainActor
public struct ModalPresentationConfiguration {
var preferredContentSize: CGSize?
var modalPresentationStyle: UIModalPresentationStyle?
var modalTransitionStyle: UIModalTransitionStyle?
var isModalInPresentation: Bool?
var transitioningDelegate: UIViewControllerTransitioningDelegate?
var presentationControllerDelegate: UIAdaptivePresentationControllerDelegate?
public init(
preferredContentSize: CGSize? = nil,
modalPresentationStyle: UIModalPresentationStyle? = nil,
modalTransitionStyle: UIModalTransitionStyle? = nil,
isModalInPresentation: Bool? = nil,
transitioningDelegate: UIViewControllerTransitioningDelegate? = nil,
presentationControllerDelegate: UIAdaptivePresentationControllerDelegate? = nil
) {
self.preferredContentSize = preferredContentSize
self.modalPresentationStyle = modalPresentationStyle
self.modalTransitionStyle = modalTransitionStyle
self.isModalInPresentation = isModalInPresentation
self.transitioningDelegate = transitioningDelegate
self.presentationControllerDelegate = presentationControllerDelegate
}
public func apply(to vc: UIViewController) {
vc.transitioningDelegate = transitioningDelegate
if let modalPresentationStyle {
vc.modalPresentationStyle = modalPresentationStyle
}
if let modalTransitionStyle {
vc.modalTransitionStyle = modalTransitionStyle
}
if let preferredContentSize {
vc.preferredContentSize = preferredContentSize
}
if let isModalInPresentation {
vc.isModalInPresentation = isModalInPresentation
}
vc.presentationController?.delegate = presentationControllerDelegate
}
/**
Wraps `presentationControllerDelegate` into forwarding delegate that intercepts interactive
dismissal and calls `dismissalHandler` while proxying all delegate calls to the former
delegate.
*/
public mutating func notifyInteractiveDismissal(_ dismissalHandler: @escaping () -> Void) {
presentationControllerDelegate =
PresentationControllerDismissalInterceptor(
forwardingTarget: presentationControllerDelegate
) { _ in
dismissalHandler()
}
}
}
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