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58 lines
2.6 KiB
58 lines
2.6 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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@objc public protocol HeroViewControllerDelegate {
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@objc optional func heroWillStartAnimatingFrom(viewController: UIViewController)
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@objc optional func heroDidEndAnimatingFrom(viewController: UIViewController)
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@objc optional func heroDidCancelAnimatingFrom(viewController: UIViewController)
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@objc optional func heroWillStartTransition()
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@objc optional func heroDidEndTransition()
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@objc optional func heroDidCancelTransition()
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@objc optional func heroWillStartAnimatingTo(viewController: UIViewController)
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@objc optional func heroDidEndAnimatingTo(viewController: UIViewController)
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@objc optional func heroDidCancelAnimatingTo(viewController: UIViewController)
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}
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// delegate helper
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internal extension HeroTransition {
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func closureProcessForHeroDelegate<T: UIViewController>(vc: T, closure: (HeroViewControllerDelegate) -> Void) {
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if let delegate = vc as? HeroViewControllerDelegate {
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closure(delegate)
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}
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if let navigationController = vc as? UINavigationController,
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let delegate = navigationController.topViewController as? HeroViewControllerDelegate {
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closure(delegate)
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} else if let tabBarController = vc as? UITabBarController,
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let delegate = tabBarController.selectedViewController as? HeroViewControllerDelegate {
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closure(delegate)
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} else {
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for vc in vc.children where vc.isViewLoaded {
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self.closureProcessForHeroDelegate(vc: vc, closure: closure)
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}
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}
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}
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}
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