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84 lines
3.3 KiB
84 lines
3.3 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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class SourcePreprocessor: BasePreprocessor {
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override func process(fromViews: [UIView], toViews: [UIView]) {
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for fv in fromViews {
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guard let id = context[fv]?.source,
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let tv = context.destinationView(for: id) else { continue }
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prepareFor(view: fv, targetView: tv)
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}
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for tv in toViews {
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guard let id = context[tv]?.source,
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let fv = context.sourceView(for: id) else { continue }
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prepareFor(view: tv, targetView: fv)
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}
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}
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func prepareFor(view: UIView, targetView: UIView) {
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let targetPos = context.container.convert(targetView.layer.position, from: targetView.superview!)
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let targetTransform = context.container.layer.flatTransformTo(layer: targetView.layer)
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var state = context[view]!
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// use global coordinate space since over target position is converted from the global container
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state.coordinateSpace = .global
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state.position = targetPos
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state.transform = targetTransform
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// remove incompatible options
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state.size = nil
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if view.bounds.size != targetView.bounds.size {
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state.size = targetView.bounds.size
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}
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if state.cornerRadius == nil, view.layer.cornerRadius != targetView.layer.cornerRadius {
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state.cornerRadius = targetView.layer.cornerRadius
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}
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if view.layer.shadowColor != targetView.layer.shadowColor {
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state.shadowColor = targetView.layer.shadowColor
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}
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if view.layer.shadowOpacity != targetView.layer.shadowOpacity {
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state.shadowOpacity = targetView.layer.shadowOpacity
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}
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if view.layer.shadowOffset != targetView.layer.shadowOffset {
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state.shadowOffset = targetView.layer.shadowOffset
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}
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if view.layer.shadowRadius != targetView.layer.shadowRadius {
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state.shadowRadius = targetView.layer.shadowRadius
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}
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if view.layer.shadowPath != targetView.layer.shadowPath {
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state.shadowPath = targetView.layer.shadowPath
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}
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if view.layer.contentsRect != targetView.layer.contentsRect {
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state.contentsRect = targetView.layer.contentsRect
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}
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if view.layer.contentsScale != targetView.layer.contentsScale {
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state.contentsScale = targetView.layer.contentsScale
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}
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context[view] = state
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}
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}
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