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fix: image preview transition using wrong mask when nest as child controller issue

This commit is contained in:
CMK 2021-05-27 17:01:48 +08:00
parent 55b2823de5
commit 4a6b2a9d1d
1 changed files with 26 additions and 12 deletions
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38
Mastodon/Scene/Transition/MediaPreview/MediaHostToMediaPreviewViewControllerAnimatedTransitioning.swift
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@ -163,11 +163,18 @@ extension MediaHostToMediaPreviewViewControllerAnimatedTransitioning {
var needsMaskWithAnimation = true
let maskLayerToRect: CGRect? = {
guard case .mosaic = transitionItem.source else { return nil }
guard let navigationBar = toVC.navigationController?.navigationBar else { return nil }
let navigationBarFrameInWindow = toVC.view.convert(navigationBar.frame, to: nil)
var rect = transitionMaskView.frame
rect.origin.y = navigationBarFrameInWindow.maxY + UIView.separatorLineHeight(of: toVC.view) // extra hairline
guard let navigationBar = toVC.navigationController?.navigationBar, let navigationBarSuperView = navigationBar.superview else { return nil }
let navigationBarFrameInWindow = navigationBarSuperView.convert(navigationBar.frame, to: nil)
// crop rect top edge
var rect = transitionMaskView.frame
let _toViewFrameInWindow = toVC.view.superview.flatMap { $0.convert(toVC.view.frame, to: nil) }
if let toViewFrameInWindow = _toViewFrameInWindow, toViewFrameInWindow.minY > navigationBarFrameInWindow.maxY {
rect.origin.y = toViewFrameInWindow.minY
} else {
rect.origin.y = navigationBarFrameInWindow.maxY + UIView.separatorLineHeight(of: toVC.view) // extra hairline
}
if rect.minY < snapshot.frame.minY {
needsMaskWithAnimation = false
}
@ -177,8 +184,8 @@ extension MediaHostToMediaPreviewViewControllerAnimatedTransitioning {
let maskLayerToPath = maskLayerToRect.flatMap { UIBezierPath(rect: $0) }?.cgPath
let maskLayerToFinalRect: CGRect? = {
guard case .mosaic = transitionItem.source else { return nil }
guard let tabBarController = toVC.tabBarController else { return nil }
let tabBarFrameInWindow = toVC.view.convert(tabBarController.tabBar.frame, to: nil)
guard let tabBarController = toVC.tabBarController, let tabBarSuperView = tabBarController.tabBar.superview else { return nil }
let tabBarFrameInWindow = tabBarSuperView.convert(tabBarController.tabBar.frame, to: nil)
var rect = maskLayerToRect ?? transitionMaskView.frame
let offset = rect.maxY - tabBarFrameInWindow.minY
guard offset > 0 else { return rect }
@ -411,11 +418,18 @@ extension MediaHostToMediaPreviewViewControllerAnimatedTransitioning {
var needsMaskWithAnimation = true
let maskLayerToRect: CGRect? = {
guard case .mosaic = transitionItem.source else { return nil }
guard let navigationBar = toVC.navigationController?.navigationBar else { return nil }
let navigationBarFrameInWindow = toVC.view.convert(navigationBar.frame, to: nil)
var rect = transitionMaskView.frame
rect.origin.y = navigationBarFrameInWindow.maxY
guard let navigationBar = toVC.navigationController?.navigationBar, let navigationBarSuperView = navigationBar.superview else { return nil }
let navigationBarFrameInWindow = navigationBarSuperView.convert(navigationBar.frame, to: nil)
// crop rect top edge
var rect = transitionMaskView.frame
let _toViewFrameInWindow = toVC.view.superview.flatMap { $0.convert(toVC.view.frame, to: nil) }
if let toViewFrameInWindow = _toViewFrameInWindow, toViewFrameInWindow.minY > navigationBarFrameInWindow.maxY {
rect.origin.y = toViewFrameInWindow.minY
} else {
rect.origin.y = navigationBarFrameInWindow.maxY + UIView.separatorLineHeight(of: toVC.view) // extra hairline
}
if rect.minY < snapshot.frame.minY {
needsMaskWithAnimation = false
}
@ -430,8 +444,8 @@ extension MediaHostToMediaPreviewViewControllerAnimatedTransitioning {
let maskLayerToFinalRect: CGRect? = {
guard case .mosaic = transitionItem.source else { return nil }
guard let tabBarController = toVC.tabBarController else { return nil }
let tabBarFrameInWindow = toVC.view.convert(tabBarController.tabBar.frame, to: nil)
guard let tabBarController = toVC.tabBarController, let tabBarSuperView = tabBarController.tabBar.superview else { return nil }
let tabBarFrameInWindow = tabBarSuperView.convert(tabBarController.tabBar.frame, to: nil)
var rect = maskLayerToRect ?? transitionMaskView.frame
let offset = rect.maxY - tabBarFrameInWindow.minY
guard offset > 0 else { return rect }