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132 lines
4.6 KiB
132 lines
4.6 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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extension HeroTransition {
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/**
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Update the progress for the interactive transition.
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- Parameters:
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- progress: the current progress, must be between 0...1
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*/
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public func update(_ percentageComplete: CGFloat) {
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guard state == .animating else {
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startingProgress = percentageComplete
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return
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}
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self.progressRunner.stop()
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self.progress = Double(percentageComplete.clamp(0, 1))
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}
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/**
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Finish the interactive transition.
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Will stop the interactive transition and animate from the
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current state to the **end** state
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*/
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public func finish(animate: Bool = true) {
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guard state == .animating || state == .notified || state == .starting else { return }
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if !animate {
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self.complete(finished: true)
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return
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}
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var maxTime: TimeInterval = 0
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for animator in self.animators {
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maxTime = max(maxTime, animator.resume(timePassed: self.progress * self.totalDuration,
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reverse: false))
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}
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self.complete(after: maxTime, finishing: true)
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}
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/**
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Cancel the interactive transition.
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Will stop the interactive transition and animate from the
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current state to the **beginning** state
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*/
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public func cancel(animate: Bool = true) {
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guard state == .animating || state == .notified || state == .starting else { return }
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if !animate {
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self.complete(finished: false)
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return
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}
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var maxTime: TimeInterval = 0
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for animator in self.animators {
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var adjustedProgress = self.progress
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if adjustedProgress < 0 {
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adjustedProgress = -adjustedProgress
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}
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maxTime = max(maxTime, animator.resume(timePassed: adjustedProgress * self.totalDuration,
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reverse: true))
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}
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self.complete(after: maxTime, finishing: false)
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}
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/**
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Override modifiers during an interactive animation.
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For example:
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Hero.shared.apply([.position(x:50, y:50)], to:view)
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will set the view's position to 50, 50
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- Parameters:
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- modifiers: the modifiers to override
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- view: the view to override to
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*/
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public func apply(modifiers: [HeroModifier], to view: UIView) {
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guard state == .animating else { return }
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let targetState = HeroTargetState(modifiers: modifiers)
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if let otherView = self.context.pairedView(for: view) {
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for animator in self.animators {
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animator.apply(state: targetState, to: otherView)
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}
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}
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for animator in self.animators {
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animator.apply(state: targetState, to: view)
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}
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}
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/**
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Override target state during an interactive animation.
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For example:
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Hero.shared.changeTarget([.position(x:50, y:50)], to:view)
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will animate the view's position to 50, 50 once `finish(animate:)` is called
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- Parameters:
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- modifiers: the modifiers to override
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- isDestination: if false, it changes the starting state
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- view: the view to override to
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*/
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public func changeTarget(modifiers: [HeroModifier], isDestination: Bool = true, to view: UIView) {
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guard state == .animating else { return }
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let targetState = HeroTargetState(modifiers: modifiers)
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if let otherView = self.context.pairedView(for: view) {
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for animator in self.animators {
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animator.changeTarget(state: targetState, isDestination: !isDestination, to: otherView)
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}
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}
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for animator in self.animators {
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animator.changeTarget(state: targetState, isDestination: isDestination, to: view)
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}
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}
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}
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