rooms-ios/NextcloudTalk/CustomPresentable.swift

// MIT License
//
// Copyright (c) 2021 Daniel Gauthier
//
// 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.
//
// From https://github.com/danielmgauthier/ViewControllerTransitionExample
// SPDX-License-Identifier: MIT

import UIKit

protocol CustomPresentable: UIViewController {
    var transitionManager: UIViewControllerTransitioningDelegate? { get set }
    var dismissalHandlingScrollView: UIScrollView? { get }
    var dismissalGestureEnabled: Bool { get set }
    func updatePresentationLayout(animated: Bool)
}

extension CustomPresentable {
    var dismissalHandlingScrollView: UIScrollView? { nil }

    func updatePresentationLayout(animated: Bool = false) {
        presentationController?.containerView?.setNeedsLayout()
        if animated {
            UIView.animate(withDuration: 0.3, delay: 0.0, usingSpringWithDamping: 1.0, initialSpringVelocity: 0.0, options: .allowUserInteraction, animations: {
                self.presentationController?.containerView?.layoutIfNeeded()
            }, completion: nil)
        } else {
            presentationController?.containerView?.layoutIfNeeded()
        }
    }
}