101 lines
3.7 KiB
Swift
101 lines
3.7 KiB
Swift
//
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// Copyright (c) 2020 Touch Instinct
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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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//
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import UIKit
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open class PresentationController: UIPresentationController {
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private let presentStyle: PresentStyle
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private let driver: TransitionDriver?
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override open var shouldPresentInFullscreen: Bool {
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false
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}
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override open var frameOfPresentedViewInContainerView: CGRect {
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calculatePresentedFrame(for: presentStyle)
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}
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public init(driver: TransitionDriver?,
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presentStyle: PresentStyle,
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presentedViewController: UIViewController,
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presenting: UIViewController?) {
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self.driver = driver
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self.presentStyle = presentStyle
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super.init(presentedViewController: presentedViewController, presenting: presenting)
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}
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override open func presentationTransitionWillBegin() {
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super.presentationTransitionWillBegin()
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if let presentedView = presentedView {
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containerView?.addSubview(presentedView)
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}
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}
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override open func containerViewDidLayoutSubviews() {
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super.containerViewDidLayoutSubviews()
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presentedView?.frame = frameOfPresentedViewInContainerView
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}
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override open func presentationTransitionDidEnd(_ completed: Bool) {
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super.presentationTransitionDidEnd(completed)
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if completed {
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driver?.direction = .dismiss
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}
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}
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}
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private extension PresentationController {
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func calculatePresentedFrame(for style: PresentStyle) -> CGRect {
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guard let bounds = containerView?.bounds else {
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return .zero
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}
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switch style {
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case .fullScreen:
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return CGRect(x: .zero, y: .zero, width: bounds.width, height: bounds.height)
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case .halfScreen:
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let halfHeight = bounds.height / 2
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return CGRect(x: .zero, y: halfHeight, width: bounds.width, height: halfHeight)
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case let .customInsets(insets):
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return calculateCustomFrame(insets: insets)
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case let .customHeight(height):
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return CGRect(x: .zero, y: bounds.height - height, width: bounds.width, height: height)
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}
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}
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func calculateCustomFrame(insets: UIEdgeInsets) -> CGRect {
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guard let bounds = containerView?.bounds else {
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return .zero
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}
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let origin = CGPoint(x: insets.left, y: insets.top)
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let size = CGSize(width: bounds.width - insets.right - insets.left,
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height: bounds.height - insets.top - insets.bottom)
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return CGRect(origin: origin, size: size)
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}
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}
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