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80 lines
3.4 KiB
80 lines
3.4 KiB
// The MIT License (MIT)
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//
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// Copyright (c) 2016 Luke Zhao <me@lkzhao.com>
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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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extension HeroTransition: UIViewControllerTransitioningDelegate {
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var interactiveTransitioning: UIViewControllerInteractiveTransitioning? {
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return forceNotInteractive ? nil : self
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}
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public func animationController(forPresented presented: UIViewController, presenting: UIViewController, source: UIViewController) -> UIViewControllerAnimatedTransitioning? {
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guard !isTransitioning else { return nil }
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self.state = .notified
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self.isPresenting = true
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self.fromViewController = fromViewController ?? presenting
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self.toViewController = toViewController ?? presented
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return self
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}
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public func animationController(forDismissed dismissed: UIViewController) -> UIViewControllerAnimatedTransitioning? {
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guard !isTransitioning else { return nil }
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self.state = .notified
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self.isPresenting = false
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self.fromViewController = fromViewController ?? dismissed
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return self
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}
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public func interactionControllerForDismissal(using animator: UIViewControllerAnimatedTransitioning) -> UIViewControllerInteractiveTransitioning? {
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return interactiveTransitioning
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}
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public func interactionControllerForPresentation(using animator: UIViewControllerAnimatedTransitioning) -> UIViewControllerInteractiveTransitioning? {
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return interactiveTransitioning
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}
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}
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extension HeroTransition: UIViewControllerAnimatedTransitioning {
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public func animateTransition(using context: UIViewControllerContextTransitioning) {
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transitionContext = context
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fromViewController = fromViewController ?? context.viewController(forKey: .from)
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toViewController = toViewController ?? context.viewController(forKey: .to)
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transitionContainer = context.containerView
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start()
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}
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public func transitionDuration(using transitionContext: UIViewControllerContextTransitioning?) -> TimeInterval {
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return 0.375 // doesn't matter, real duration will be calculated later
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}
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public func animationEnded(_ transitionCompleted: Bool) {
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self.state = .possible
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}
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}
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extension HeroTransition: UIViewControllerInteractiveTransitioning {
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public var wantsInteractiveStart: Bool {
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return true
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}
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public func startInteractiveTransition(_ transitionContext: UIViewControllerContextTransitioning) {
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animateTransition(using: transitionContext)
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}
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}
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