Merge pull request #127 from tootsuite/feature/media-preview

Add image preview for timeline and profile scene
This commit is contained in:
CMK 2021-05-06 15:06:39 +08:00 committed by GitHub
commit c6584f4cab
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
47 changed files with 2691 additions and 59 deletions

View File

@ -27,6 +27,10 @@
"title": "Sign out",
"message": "Are you sure you want to sign out?",
"confirm": "Sign Out"
},
"save_photo_failure": {
"title": "Save Photo Failure",
"message": "Please enable photo libaray access permission to save photo."
}
},
"controls": {
@ -55,7 +59,8 @@
"find_people": "Find people to follow",
"manually_search": "Manually search instead",
"skip": "Skip",
"report_user": "Report %s"
"report_user": "Report %s",
"settings": "Settings"
},
"status": {
"user_reblogged": "%s reblogged",
@ -411,4 +416,4 @@
"text_placeholder": "Type or paste additional comments"
}
}
}
}

View File

@ -255,6 +255,19 @@
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@ -1750,6 +1790,56 @@
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@ -1947,6 +2037,7 @@
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DB98338825C945ED00AD9700 /* Assets.swift in Sources */,
DB6180E926391BDF0018D199 /* MediaHostToMediaPreviewViewControllerAnimatedTransitioning.swift in Sources */,
DB6B351E2601FAEE00DC1E11 /* ComposeStatusAttachmentCollectionViewCell.swift in Sources */,
2DA7D04425CA52B200804E11 /* TimelineLoaderTableViewCell.swift in Sources */,
DB87D44B2609C11900D12C0D /* PollOptionView.swift in Sources */,
@ -2857,12 +2976,14 @@
5DDDF1A92617489F00311060 /* Mastodon+Entity+History.swift in Sources */,
DB59F11825EFA35B001F1DAB /* StripProgressView.swift in Sources */,
DB59F10425EF5EBC001F1DAB /* TableViewCellHeightCacheableContainer.swift in Sources */,
DBA5E7AB263BD3F5004598BB /* TimelineTableViewCellContextMenuConfiguration.swift in Sources */,
DB73B490261F030A002E9E9F /* SafariActivity.swift in Sources */,
DB6D1B44263691CF00ACB481 /* Mastodon+API+Subscriptions+Policy.swift in Sources */,
DB9A48962603685D008B817C /* MastodonAttachmentService+UploadState.swift in Sources */,
2D198643261BF09500F0B013 /* SearchResultItem.swift in Sources */,
2DAC9E38262FC2320062E1A6 /* SuggestionAccountViewController.swift in Sources */,
DB66728C25F9F8DC00D60309 /* ComposeViewModel+Diffable.swift in Sources */,
DB6180E02639194B0018D199 /* MediaPreviewPagingViewController.swift in Sources */,
DBE0822425CD3F1E00FD6BBD /* MastodonRegisterViewModel.swift in Sources */,
2DF75B9B25D0E27500694EC8 /* StatusProviderFacade.swift in Sources */,
DB5086A525CC0B7000C2C187 /* AvatarBarButtonItem.swift in Sources */,
@ -2870,6 +2991,7 @@
2D82B9FF25E7863200E36F0F /* OnboardingViewControllerAppearance.swift in Sources */,
5DF1054725F8870E00D6C0D4 /* VideoPlayerViewModel.swift in Sources */,
2DE0FAC12615F04D00CDF649 /* RecommendHashTagSection.swift in Sources */,
DBA5E7A5263BD28C004598BB /* ContextMenuImagePreviewViewModel.swift in Sources */,
2D38F1E525CD46C100561493 /* HomeTimelineViewModel.swift in Sources */,
DBCC3B36261440BA0045B23D /* UINavigationController.swift in Sources */,
DBB525852612D6DD002F1F29 /* ProfileStatusDashboardMeterView.swift in Sources */,
@ -2939,6 +3061,7 @@
DB02CDBF2625AE5000D0A2AF /* AdaptiveUserInterfaceStyleBarButtonItem.swift in Sources */,
DB1FD44425F26CCC004CFCFC /* PickServerSection.swift in Sources */,
0FB3D30F25E525CD00AAD544 /* PickServerCategoryView.swift in Sources */,
DB6180E626391B550018D199 /* MediaPreviewTransitionController.swift in Sources */,
5BB04FDB262EA3070043BFF6 /* ReportHeaderView.swift in Sources */,
DB2F073525E8ECF000957B2D /* AuthenticationViewModel.swift in Sources */,
DB68A04A25E9027700CFDF14 /* AdaptiveStatusBarStyleNavigationController.swift in Sources */,
@ -2948,12 +3071,14 @@
DB8AF54525C13647002E6C99 /* NeedsDependency.swift in Sources */,
DB9D6BF825E4F5690051B173 /* NotificationViewController.swift in Sources */,
2DAC9E46262FC9FD0062E1A6 /* SuggestionAccountTableViewCell.swift in Sources */,
DBA5E7A9263BD3A4004598BB /* ContextMenuImagePreviewViewController.swift in Sources */,
DB45FADD25CA6F6B005A8AC7 /* APIService+CoreData+MastodonUser.swift in Sources */,
2D32EABA25CB9B0500C9ED86 /* UIView.swift in Sources */,
2D38F20825CD491300561493 /* DisposeBagCollectable.swift in Sources */,
0F20220D26134E3F000C64BF /* HashtagTimelineViewModel+LoadLatestState.swift in Sources */,
DBCC3B8F26148F7B0045B23D /* CachedProfileViewModel.swift in Sources */,
DB49A63D25FF609300B98345 /* PlayerContainerView+MediaTypeIndicotorView.swift in Sources */,
DB6180F826391D660018D199 /* MediaPreviewingViewController.swift in Sources */,
DB0140CF25C42AEE00F9F3CF /* OSLog.swift in Sources */,
DB44384F25E8C1FA008912A2 /* CALayer.swift in Sources */,
2D34D9CB261489930081BFC0 /* SearchViewController+Recommend.swift in Sources */,
@ -3017,6 +3142,7 @@
DB8AF52E25C13561002E6C99 /* ViewStateStore.swift in Sources */,
2DA7D04A25CA52CB00804E11 /* TimelineBottomLoaderTableViewCell.swift in Sources */,
2D76318325C14E8F00929FB9 /* PublicTimelineViewModel+Diffable.swift in Sources */,
DB6180FA26391F2E0018D199 /* MediaPreviewViewModel.swift in Sources */,
2D198655261C3C4300F0B013 /* SearchViewModel+LoadOldestState.swift in Sources */,
0F202227261411BB000C64BF /* HashtagTimelineViewController+StatusProvider.swift in Sources */,
2D7631A825C1535600929FB9 /* StatusTableViewCell.swift in Sources */,
@ -3054,10 +3180,12 @@
5BB04FF5262F0E6D0043BFF6 /* ReportSection.swift in Sources */,
DB938F25262438D600E5B6C1 /* ThreadViewController+StatusProvider.swift in Sources */,
DB66729C25F9F91F00D60309 /* ComposeStatusItem.swift in Sources */,
DB6180E326391A4C0018D199 /* ViewControllerAnimatedTransitioning.swift in Sources */,
0FB3D31E25E534C700AAD544 /* PickServerCategoryCollectionViewCell.swift in Sources */,
5DF1057925F88A1D00D6C0D4 /* PlayerContainerView.swift in Sources */,
DB6D9F4926353FD7008423CD /* Subscription.swift in Sources */,
DB45FB0F25CA87D0005A8AC7 /* AuthenticationService.swift in Sources */,
DB6180ED26391C6C0018D199 /* TransitioningMath.swift in Sources */,
2D6DE40026141DF600A63F6A /* SearchViewModel.swift in Sources */,
DB51D172262832380062B7A1 /* BlurHashDecode.swift in Sources */,
DBCC3B89261454BA0045B23D /* CGImage.swift in Sources */,

View File

@ -12,7 +12,7 @@
<key>CoreDataStack.xcscheme_^#shared#^_</key>
<dict>
<key>orderHint</key>
<integer>17</integer>
<integer>14</integer>
</dict>
<key>Mastodon - RTL.xcscheme_^#shared#^_</key>
<dict>
@ -32,7 +32,7 @@
<key>NotificationService.xcscheme_^#shared#^_</key>
<dict>
<key>orderHint</key>
<integer>18</integer>
<integer>15</integer>
</dict>
</dict>
<key>SuppressBuildableAutocreation</key>

View File

@ -71,6 +71,9 @@ extension SceneCoordinator {
// suggestion account
case suggestionAccount(viewModel: SuggestionAccountViewModel)
// media preview
case mediaPreview(viewModel: MediaPreviewViewModel)
// misc
case safari(url: URL)
case alertController(alertController: UIAlertController)
@ -266,6 +269,10 @@ private extension SceneCoordinator {
let _viewController = SuggestionAccountViewController()
_viewController.viewModel = viewModel
viewController = _viewController
case .mediaPreview(let viewModel):
let _viewController = MediaPreviewViewController()
_viewController.viewModel = viewModel
viewController = _viewController
case .safari(let url):
guard let scheme = url.scheme?.lowercased(),
scheme == "http" || scheme == "https" else {

View File

@ -12,7 +12,7 @@ import os.log
import UIKit
import AVKit
protocol StatusCell : DisposeBagCollectable {
protocol StatusCell: DisposeBagCollectable {
var statusView: StatusView { get }
var pollCountdownSubscription: AnyCancellable? { get set }
}
@ -142,7 +142,7 @@ extension StatusSection {
status: Status,
requestUserID: String,
statusItemAttribute: Item.StatusAttribute
) {
) {
// set header
StatusSection.configureHeader(cell: cell, status: status)
ManagedObjectObserver.observe(object: status)

View File

@ -58,10 +58,18 @@ extension MastodonUser {
return URL(string: header)
}
public func headerImageURLWithFallback(domain: String) -> URL {
return URL(string: header) ?? URL(string: "https://\(domain)/headers/original/missing.png")!
}
public func avatarImageURL() -> URL? {
return URL(string: avatar)
}
public func avatarImageURLWithFallback(domain: String) -> URL {
return URL(string: avatar) ?? URL(string: "https://\(domain)/avatars/original/missing.png")!
}
}
extension MastodonUser {

View File

@ -31,6 +31,12 @@ internal enum L10n {
/// Publish Failure
internal static let title = L10n.tr("Localizable", "Common.Alerts.PublishPostFailure.Title")
}
internal enum SavePhotoFailure {
/// Please enable photo libaray access permission to save photo.
internal static let message = L10n.tr("Localizable", "Common.Alerts.SavePhotoFailure.Message")
/// Save Photo Failure
internal static let title = L10n.tr("Localizable", "Common.Alerts.SavePhotoFailure.Title")
}
internal enum ServerError {
/// Server Error
internal static let title = L10n.tr("Localizable", "Common.Alerts.ServerError.Title")
@ -94,6 +100,8 @@ internal enum L10n {
internal static let savePhoto = L10n.tr("Localizable", "Common.Controls.Actions.SavePhoto")
/// See More
internal static let seeMore = L10n.tr("Localizable", "Common.Controls.Actions.SeeMore")
/// Settings
internal static let settings = L10n.tr("Localizable", "Common.Controls.Actions.Settings")
/// Share
internal static let share = L10n.tr("Localizable", "Common.Controls.Actions.Share")
/// Share %@

View File

@ -51,7 +51,10 @@ extension AvatarConfigurableView {
avatarConfigurableView(self, didFinishConfiguration: configuration)
}
let filter = ScaledToSizeWithRoundedCornersFilter(size: Self.configurableAvatarImageSize, radius: Self.configurableAvatarImageCornerRadius)
let filter = ScaledToSizeWithRoundedCornersFilter(
size: Self.configurableAvatarImageSize,
radius: configuration.keepImageCorner ? 0 : Self.configurableAvatarImageCornerRadius
)
// set placeholder if no asset
guard let avatarImageURL = configuration.avatarImageURL else {
@ -91,6 +94,12 @@ extension AvatarConfigurableView {
runImageTransitionIfCached: false,
completion: nil
)
if Self.configurableAvatarImageCornerRadius > 0, configuration.keepImageCorner {
configurableAvatarImageView?.layer.masksToBounds = true
configurableAvatarImageView?.layer.cornerRadius = Self.configurableAvatarImageCornerRadius
configurableAvatarImageView?.layer.cornerCurve = Self.configurableAvatarImageCornerRadius < Self.configurableAvatarImageSize.width * 0.5 ? .continuous :.circular
}
}
configureLayerBorder(view: avatarImageView, configuration: configuration)
@ -148,16 +157,20 @@ struct AvatarConfigurableViewConfiguration {
let borderColor: UIColor?
let borderWidth: CGFloat?
let keepImageCorner: Bool
init(
avatarImageURL: URL?,
placeholderImage: UIImage? = nil,
borderColor: UIColor? = nil,
borderWidth: CGFloat? = nil
borderWidth: CGFloat? = nil,
keepImageCorner: Bool = false // default clip corner on image
) {
self.avatarImageURL = avatarImageURL
self.placeholderImage = placeholderImage
self.borderColor = borderColor
self.borderWidth = borderWidth
self.keepImageCorner = keepImageCorner
}
}

View File

@ -58,9 +58,7 @@ extension StatusTableViewCellDelegate where Self: StatusProvider {
// MARK: - MosciaImageViewContainerDelegate
extension StatusTableViewCellDelegate where Self: StatusProvider {
func statusTableViewCell(_ cell: StatusTableViewCell, mosaicImageViewContainer: MosaicImageViewContainer, didTapImageView imageView: UIImageView, atIndex index: Int) {
}
func statusTableViewCell(_ cell: StatusTableViewCell, mosaicImageViewContainer: MosaicImageViewContainer, contentWarningOverlayViewDidPressed contentWarningOverlayView: ContentWarningOverlayView) {
StatusProviderFacade.responseToStatusContentWarningRevealAction(provider: self, cell: cell)
@ -76,6 +74,12 @@ extension StatusTableViewCellDelegate where Self: StatusProvider {
}
extension StatusTableViewCellDelegate where Self: StatusProvider & MediaPreviewableViewController {
func statusTableViewCell(_ cell: StatusTableViewCell, mosaicImageViewContainer: MosaicImageViewContainer, didTapImageView imageView: UIImageView, atIndex index: Int) {
StatusProviderFacade.coordinateToStatusMediaPreviewScene(provider: self, cell: cell, mosaicImageView: mosaicImageViewContainer, didTapImageView: imageView, atIndex: index)
}
}
// MARK: - PollTableView
extension StatusTableViewCellDelegate where Self: StatusProvider {

View File

@ -106,4 +106,262 @@ extension StatusTableViewCellDelegate where Self: StatusProvider {
}
extension StatusTableViewCellDelegate where Self: StatusProvider {}
extension StatusTableViewCellDelegate where Self: StatusProvider {
private typealias ImagePreviewPresentableCell = UITableViewCell & DisposeBagCollectable & MosaicImageViewContainerPresentable
func handleTableView(_ tableView: UITableView, contextMenuConfigurationForRowAt indexPath: IndexPath, point: CGPoint) -> UIContextMenuConfiguration? {
guard let imagePreviewPresentableCell = tableView.cellForRow(at: indexPath) as? ImagePreviewPresentableCell else { return nil }
guard imagePreviewPresentableCell.isRevealing else { return nil }
let status = status(for: nil, indexPath: indexPath)
return contextMenuConfiguration(tableView, status: status, imagePreviewPresentableCell: imagePreviewPresentableCell, contextMenuConfigurationForRowAt: indexPath, point: point)
}
private func contextMenuConfiguration(
_ tableView: UITableView,
status: Future<Status?, Never>,
imagePreviewPresentableCell presentable: ImagePreviewPresentableCell,
contextMenuConfigurationForRowAt indexPath: IndexPath,
point: CGPoint
) -> UIContextMenuConfiguration? {
let imageViews = presentable.mosaicImageViewContainer.imageViews
guard !imageViews.isEmpty else { return nil }
for (i, imageView) in imageViews.enumerated() {
let pointInImageView = imageView.convert(point, from: tableView)
guard imageView.point(inside: pointInImageView, with: nil) else {
continue
}
guard let image = imageView.image, image.size != CGSize(width: 1, height: 1) else {
// not provide preview until image ready
return nil
}
// setup preview
let contextMenuImagePreviewViewModel = ContextMenuImagePreviewViewModel(aspectRatio: image.size, thumbnail: image)
status
.sink { status in
guard let status = (status?.reblog ?? status),
let media = status.mediaAttachments?.sorted(by:{ $0.index.compare($1.index) == .orderedAscending }),
i < media.count, let url = URL(string: media[i].url) else {
return
}
contextMenuImagePreviewViewModel.url.value = url
}
.store(in: &contextMenuImagePreviewViewModel.disposeBag)
// setup context menu
let contextMenuConfiguration = TimelineTableViewCellContextMenuConfiguration(identifier: nil) { () -> UIViewController? in
// know issue: preview size looks not as large as system default preview
let previewProvider = ContextMenuImagePreviewViewController()
previewProvider.viewModel = contextMenuImagePreviewViewModel
return previewProvider
} actionProvider: { _ -> UIMenu? in
let savePhotoAction = UIAction(
title: L10n.Common.Controls.Actions.savePhoto, image: UIImage(systemName: "square.and.arrow.down")!, identifier: nil, discoverabilityTitle: nil, attributes: [], state: .off
) { [weak self] _ in
os_log(.info, log: .debug, "%{public}s[%{public}ld], %{public}s: save photo", ((#file as NSString).lastPathComponent), #line, #function)
guard let self = self else { return }
self.attachment(of: status, index: i)
.setFailureType(to: Error.self)
.compactMap { attachment -> AnyPublisher<UIImage, Error>? in
guard let attachment = attachment, let url = URL(string: attachment.url) else { return nil }
return self.context.photoLibraryService.saveImage(url: url)
}
.switchToLatest()
.sink(receiveCompletion: { [weak self] completion in
guard let self = self else { return }
switch completion {
case .failure(let error):
guard let error = error as? PhotoLibraryService.PhotoLibraryError,
case .noPermission = error else { return }
let alertController = SettingService.openSettingsAlertController(title: L10n.Common.Alerts.SavePhotoFailure.title, message: L10n.Common.Alerts.SavePhotoFailure.message)
self.coordinator.present(scene: .alertController(alertController: alertController), from: self, transition: .alertController(animated: true, completion: nil))
case .finished:
break
}
}, receiveValue: { _ in
// do nothing
})
.store(in: &self.context.disposeBag)
}
let shareAction = UIAction(
title: L10n.Common.Controls.Actions.share, image: UIImage(systemName: "square.and.arrow.up")!, identifier: nil, discoverabilityTitle: nil, attributes: [], state: .off
) { [weak self] _ in
os_log(.info, log: .debug, "%{public}s[%{public}ld], %{public}s: share", ((#file as NSString).lastPathComponent), #line, #function)
guard let self = self else { return }
self.attachment(of: status, index: i)
.sink(receiveValue: { [weak self] attachment in
guard let self = self else { return }
guard let attachment = attachment, let url = URL(string: attachment.url) else { return }
let applicationActivities: [UIActivity] = [
SafariActivity(sceneCoordinator: self.coordinator)
]
let activityViewController = UIActivityViewController(
activityItems: [url],
applicationActivities: applicationActivities
)
activityViewController.popoverPresentationController?.sourceView = imageView
self.present(activityViewController, animated: true, completion: nil)
})
.store(in: &self.context.disposeBag)
}
let children = [savePhotoAction, shareAction]
return UIMenu(title: "", image: nil, children: children)
}
contextMenuConfiguration.indexPath = indexPath
contextMenuConfiguration.index = i
return contextMenuConfiguration
}
return nil
}
private func attachment(of status: Future<Status?, Never>, index: Int) -> AnyPublisher<Attachment?, Never> {
status
.map { status in
guard let status = status?.reblog ?? status else { return nil }
guard let media = status.mediaAttachments?.sorted(by: { $0.index.compare($1.index) == .orderedAscending }) else { return nil }
guard index < media.count else { return nil }
return media[index]
}
.eraseToAnyPublisher()
}
func handleTableView(_ tableView: UITableView, previewForHighlightingContextMenuWithConfiguration configuration: UIContextMenuConfiguration) -> UITargetedPreview? {
return _handleTableView(tableView, configuration: configuration)
}
func handleTableView(_ tableView: UITableView, previewForDismissingContextMenuWithConfiguration configuration: UIContextMenuConfiguration) -> UITargetedPreview? {
return _handleTableView(tableView, configuration: configuration)
}
private func _handleTableView(_ tableView: UITableView, configuration: UIContextMenuConfiguration) -> UITargetedPreview? {
guard let configuration = configuration as? TimelineTableViewCellContextMenuConfiguration else { return nil }
guard let indexPath = configuration.indexPath, let index = configuration.index else { return nil }
guard let cell = tableView.cellForRow(at: indexPath) as? ImagePreviewPresentableCell else {
return nil
}
let imageViews = cell.mosaicImageViewContainer.imageViews
guard index < imageViews.count else { return nil }
let imageView = imageViews[index]
return UITargetedPreview(view: imageView, parameters: UIPreviewParameters())
}
func handleTableView(_ tableView: UITableView, willPerformPreviewActionForMenuWith configuration: UIContextMenuConfiguration, animator: UIContextMenuInteractionCommitAnimating) {
guard let previewableViewController = self as? MediaPreviewableViewController else { return }
guard let configuration = configuration as? TimelineTableViewCellContextMenuConfiguration else { return }
guard let indexPath = configuration.indexPath, let index = configuration.index else { return }
guard let cell = tableView.cellForRow(at: indexPath) as? ImagePreviewPresentableCell else { return }
let imageViews = cell.mosaicImageViewContainer.imageViews
guard index < imageViews.count else { return }
let imageView = imageViews[index]
let status = status(for: nil, indexPath: indexPath)
let initialFrame: CGRect? = {
guard let previewViewController = animator.previewViewController else { return nil }
return UIView.findContextMenuPreviewFrameInWindow(previewController: previewViewController)
}()
animator.preferredCommitStyle = .pop
animator.addCompletion { [weak self] in
guard let self = self else { return }
status
//.delay(for: .milliseconds(500), scheduler: DispatchQueue.main)
.sink { [weak self] status in
guard let self = self else { return }
guard let status = (status?.reblog ?? status) else { return }
let meta = MediaPreviewViewModel.StatusImagePreviewMeta(
statusObjectID: status.objectID,
initialIndex: index,
preloadThumbnailImages: cell.mosaicImageViewContainer.thumbnails()
)
let pushTransitionItem = MediaPreviewTransitionItem(
source: .mosaic(cell.mosaicImageViewContainer),
previewableViewController: previewableViewController
)
pushTransitionItem.aspectRatio = {
if let image = imageView.image {
return image.size
}
guard let media = status.mediaAttachments?.sorted(by: { $0.index.compare($1.index) == .orderedAscending }) else { return nil }
guard index < media.count else { return nil }
let meta = media[index].meta
guard let width = meta?.original?.width, let height = meta?.original?.height else { return nil }
return CGSize(width: width, height: height)
}()
pushTransitionItem.sourceImageView = imageView
pushTransitionItem.initialFrame = {
if let initialFrame = initialFrame {
return initialFrame
}
return imageView.superview!.convert(imageView.frame, to: nil)
}()
pushTransitionItem.image = {
if let image = imageView.image {
return image
}
if index < cell.mosaicImageViewContainer.blurhashOverlayImageViews.count {
return cell.mosaicImageViewContainer.blurhashOverlayImageViews[index].image
}
return nil
}()
let mediaPreviewViewModel = MediaPreviewViewModel(
context: self.context,
meta: meta,
pushTransitionItem: pushTransitionItem
)
DispatchQueue.main.async {
self.coordinator.present(scene: .mediaPreview(viewModel: mediaPreviewViewModel), from: self, transition: .custom(transitioningDelegate: previewableViewController.mediaPreviewTransitionController))
}
}
.store(in: &cell.disposeBag)
}
}
}
extension UIView {
// hack to retrieve preview view frame in window
fileprivate static func findContextMenuPreviewFrameInWindow(
previewController: UIViewController
) -> CGRect? {
guard let window = previewController.view.window else { return nil }
let targetViews = window.subviews
.map { $0.findSameSize(view: previewController.view) }
.flatMap { $0 }
for targetView in targetViews {
guard let targetViewSuperview = targetView.superview else { continue }
let frame = targetViewSuperview.convert(targetView.frame, to: nil)
guard frame.origin.x > 0, frame.origin.y > 0 else { continue }
return frame
}
return nil
}
private func findSameSize(view: UIView) -> [UIView] {
var views: [UIView] = []
if view.bounds.size == bounds.size {
views.append(self)
}
for subview in subviews {
let targetViews = subview.findSameSize(view: view)
views.append(contentsOf: targetViews)
}
return views
}
}

View File

@ -528,6 +528,64 @@ extension StatusProviderFacade {
}
}
extension StatusProviderFacade {
static func coordinateToStatusMediaPreviewScene(provider: StatusProvider & MediaPreviewableViewController, cell: UITableViewCell, mosaicImageView: MosaicImageViewContainer, didTapImageView imageView: UIImageView, atIndex index: Int) {
provider.status(for: cell, indexPath: nil)
.sink { [weak provider] status in
guard let provider = provider else { return }
guard let source = status else { return }
let status = source.reblog ?? source
let meta = MediaPreviewViewModel.StatusImagePreviewMeta(
statusObjectID: status.objectID,
initialIndex: index,
preloadThumbnailImages: mosaicImageView.thumbnails()
)
let pushTransitionItem = MediaPreviewTransitionItem(
source: .mosaic(mosaicImageView),
previewableViewController: provider
)
pushTransitionItem.aspectRatio = {
if let image = imageView.image {
return image.size
}
guard let media = status.mediaAttachments?.sorted(by: { $0.index.compare($1.index) == .orderedAscending }) else { return nil }
guard index < media.count else { return nil }
let meta = media[index].meta
guard let width = meta?.original?.width, let height = meta?.original?.height else { return nil }
return CGSize(width: width, height: height)
}()
pushTransitionItem.sourceImageView = imageView
pushTransitionItem.initialFrame = {
let initialFrame = imageView.superview!.convert(imageView.frame, to: nil)
assert(initialFrame != .zero)
return initialFrame
}()
pushTransitionItem.image = {
if let image = imageView.image {
return image
}
if index < mosaicImageView.blurhashOverlayImageViews.count {
return mosaicImageView.blurhashOverlayImageViews[index].image
}
return nil
}()
let mediaPreviewViewModel = MediaPreviewViewModel(
context: provider.context,
meta: meta,
pushTransitionItem: pushTransitionItem
)
DispatchQueue.main.async {
provider.coordinator.present(scene: .mediaPreview(viewModel: mediaPreviewViewModel), from: provider, transition: .custom(transitioningDelegate: provider.mediaPreviewTransitionController))
}
}
.store(in: &provider.disposeBag)
}
}
extension StatusProviderFacade {
enum Target {
case primary // original status

View File

@ -9,12 +9,12 @@ import UIKit
import AVKit
// Check List Last Updated
// - HomeViewController: 2021/4/13
// - FavoriteViewController: 2021/4/14
// - HashtagTimelineViewController: 2021/4/8
// - UserTimelineViewController: 2021/4/13
// - ThreadViewController: 2021/4/13
// * StatusTableViewControllerAspect: 2021/4/12
// - HomeViewController: 2021/4/30
// - FavoriteViewController: 2021/4/30
// - HashtagTimelineViewController: 2021/4/30
// - UserTimelineViewController: 2021/4/30
// - ThreadViewController: 2021/4/30
// * StatusTableViewControllerAspect: 2021/4/30
// (Fake) Aspect protocol to group common protocol extension implementations
// Needs update related view controller when aspect interface changes
@ -103,6 +103,38 @@ extension StatusTableViewControllerAspect where Self: StatusTableViewCellDelegat
}
}
// [B6] aspectTableView(_:contextMenuConfigurationForRowAt:point:)
extension StatusTableViewControllerAspect where Self: StatusTableViewCellDelegate & StatusProvider {
// [UI] hook to display context menu for images
func aspectTableView(_ tableView: UITableView, contextMenuConfigurationForRowAt indexPath: IndexPath, point: CGPoint) -> UIContextMenuConfiguration? {
return handleTableView(tableView, contextMenuConfigurationForRowAt: indexPath, point: point)
}
}
// [B7] aspectTableView(_:contextMenuConfigurationForRowAt:point:)
extension StatusTableViewControllerAspect where Self: StatusTableViewCellDelegate & StatusProvider {
// [UI] hook to configure context menu for images
func aspectTableView(_ tableView: UITableView, previewForHighlightingContextMenuWithConfiguration configuration: UIContextMenuConfiguration) -> UITargetedPreview? {
return handleTableView(tableView, previewForHighlightingContextMenuWithConfiguration: configuration)
}
}
// [B8] aspectTableView(_:previewForDismissingContextMenuWithConfiguration:)
extension StatusTableViewControllerAspect where Self: StatusTableViewCellDelegate & StatusProvider {
// [UI] hook to configure context menu for images
func aspectTableView(_ tableView: UITableView, previewForDismissingContextMenuWithConfiguration configuration: UIContextMenuConfiguration) -> UITargetedPreview? {
return handleTableView(tableView, previewForDismissingContextMenuWithConfiguration: configuration)
}
}
// [B9] aspectTableView(_:willPerformPreviewActionForMenuWith:animator:)
extension StatusTableViewControllerAspect where Self: StatusTableViewCellDelegate & StatusProvider {
// [UI] hook to configure context menu preview action
func aspectTableView(_ tableView: UITableView, willPerformPreviewActionForMenuWith configuration: UIContextMenuConfiguration, animator: UIContextMenuInteractionCommitAnimating) {
handleTableView(tableView, willPerformPreviewActionForMenuWith: configuration, animator: animator)
}
}
// MARK: - UITableViewDataSourcePrefetching [C]
// [C1] aspectTableView(:prefetchRowsAt)

View File

@ -5,6 +5,8 @@
"Common.Alerts.PublishPostFailure.Message" = "Failed to publish the post.
Please check your internet connection.";
"Common.Alerts.PublishPostFailure.Title" = "Publish Failure";
"Common.Alerts.SavePhotoFailure.Message" = "Please enable photo libaray access permission to save photo.";
"Common.Alerts.SavePhotoFailure.Title" = "Save Photo Failure";
"Common.Alerts.ServerError.Title" = "Server Error";
"Common.Alerts.SignOut.Confirm" = "Sign Out";
"Common.Alerts.SignOut.Message" = "Are you sure you want to sign out?";
@ -30,6 +32,7 @@ Please check your internet connection.";
"Common.Controls.Actions.Save" = "Save";
"Common.Controls.Actions.SavePhoto" = "Save photo";
"Common.Controls.Actions.SeeMore" = "See More";
"Common.Controls.Actions.Settings" = "Settings";
"Common.Controls.Actions.Share" = "Share";
"Common.Controls.Actions.ShareUser" = "Share %@";
"Common.Controls.Actions.SignIn" = "Sign In";

View File

@ -12,7 +12,7 @@ import Combine
import GameplayKit
import CoreData
class HashtagTimelineViewController: UIViewController, NeedsDependency {
class HashtagTimelineViewController: UIViewController, NeedsDependency, MediaPreviewableViewController {
weak var context: AppContext! { willSet { precondition(!isViewLoaded) } }
weak var coordinator: SceneCoordinator! { willSet { precondition(!isViewLoaded) } }
@ -20,6 +20,8 @@ class HashtagTimelineViewController: UIViewController, NeedsDependency {
var viewModel: HashtagTimelineViewModel!
let mediaPreviewTransitionController = MediaPreviewTransitionController()
let composeBarButtonItem: UIBarButtonItem = {
let barButtonItem = UIBarButtonItem()
barButtonItem.tintColor = Asset.Colors.Label.highlight.color
@ -222,6 +224,23 @@ extension HashtagTimelineViewController: UITableViewDelegate {
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
aspectTableView(tableView, didSelectRowAt: indexPath)
}
func tableView(_ tableView: UITableView, contextMenuConfigurationForRowAt indexPath: IndexPath, point: CGPoint) -> UIContextMenuConfiguration? {
return aspectTableView(tableView, contextMenuConfigurationForRowAt: indexPath, point: point)
}
func tableView(_ tableView: UITableView, previewForHighlightingContextMenuWithConfiguration configuration: UIContextMenuConfiguration) -> UITargetedPreview? {
return aspectTableView(tableView, previewForHighlightingContextMenuWithConfiguration: configuration)
}
func tableView(_ tableView: UITableView, previewForDismissingContextMenuWithConfiguration configuration: UIContextMenuConfiguration) -> UITargetedPreview? {
return aspectTableView(tableView, previewForDismissingContextMenuWithConfiguration: configuration)
}
func tableView(_ tableView: UITableView, willPerformPreviewActionForMenuWith configuration: UIContextMenuConfiguration, animator: UIContextMenuInteractionCommitAnimating) {
aspectTableView(tableView, willPerformPreviewActionForMenuWith: configuration, animator: animator)
}
}
// MARK: - ContentOffsetAdjustableTimelineViewControllerDelegate

View File

@ -15,7 +15,7 @@ import GameplayKit
import MastodonSDK
import AlamofireImage
final class HomeTimelineViewController: UIViewController, NeedsDependency {
final class HomeTimelineViewController: UIViewController, NeedsDependency, MediaPreviewableViewController {
weak var context: AppContext! { willSet { precondition(!isViewLoaded) } }
weak var coordinator: SceneCoordinator! { willSet { precondition(!isViewLoaded) } }
@ -23,6 +23,8 @@ final class HomeTimelineViewController: UIViewController, NeedsDependency {
var disposeBag = Set<AnyCancellable>()
private(set) lazy var viewModel = HomeTimelineViewModel(context: context)
let mediaPreviewTransitionController = MediaPreviewTransitionController()
lazy var emptyView: UIStackView = {
let emptyView = UIStackView()
emptyView.axis = .vertical
@ -376,6 +378,23 @@ extension HomeTimelineViewController: UITableViewDelegate {
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
aspectTableView(tableView, didSelectRowAt: indexPath)
}
func tableView(_ tableView: UITableView, contextMenuConfigurationForRowAt indexPath: IndexPath, point: CGPoint) -> UIContextMenuConfiguration? {
return aspectTableView(tableView, contextMenuConfigurationForRowAt: indexPath, point: point)
}
func tableView(_ tableView: UITableView, previewForHighlightingContextMenuWithConfiguration configuration: UIContextMenuConfiguration) -> UITargetedPreview? {
return aspectTableView(tableView, previewForHighlightingContextMenuWithConfiguration: configuration)
}
func tableView(_ tableView: UITableView, previewForDismissingContextMenuWithConfiguration configuration: UIContextMenuConfiguration) -> UITargetedPreview? {
return aspectTableView(tableView, previewForDismissingContextMenuWithConfiguration: configuration)
}
func tableView(_ tableView: UITableView, willPerformPreviewActionForMenuWith configuration: UIContextMenuConfiguration, animator: UIContextMenuInteractionCommitAnimating) {
aspectTableView(tableView, willPerformPreviewActionForMenuWith: configuration, animator: animator)
}
}
// MARK: - UITableViewDataSourcePrefetching

View File

@ -0,0 +1,242 @@
//
// MediaPreviewViewController.swift
// Mastodon
//
// Created by MainasuK Cirno on 2021-4-28.
//
import os.log
import UIKit
import Combine
import Pageboy
final class MediaPreviewViewController: UIViewController, NeedsDependency {
static let closeButtonSize = CGSize(width: 30, height: 30)
weak var context: AppContext! { willSet { precondition(!isViewLoaded) } }
weak var coordinator: SceneCoordinator! { willSet { precondition(!isViewLoaded) } }
var disposeBag = Set<AnyCancellable>()
var viewModel: MediaPreviewViewModel!
let visualEffectView = UIVisualEffectView(effect: UIBlurEffect(style: .systemMaterial))
let pagingViewConttroller = MediaPreviewPagingViewController()
let closeButtonBackground: UIVisualEffectView = {
let backgroundView = UIVisualEffectView(effect: UIBlurEffect(style: .systemUltraThinMaterial))
backgroundView.alpha = 0.9
backgroundView.layer.masksToBounds = true
backgroundView.layer.cornerRadius = MediaPreviewViewController.closeButtonSize.width * 0.5
return backgroundView
}()
let closeButtonBackgroundVisualEffectView = UIVisualEffectView(effect: UIVibrancyEffect(blurEffect: UIBlurEffect(style: .systemUltraThinMaterial)))
let closeButton: UIButton = {
let button = HighlightDimmableButton()
button.expandEdgeInsets = UIEdgeInsets(top: -10, left: -10, bottom: -10, right: -10)
button.imageView?.tintColor = .label
button.setImage(UIImage(systemName: "xmark", withConfiguration: UIImage.SymbolConfiguration(pointSize: 16, weight: .bold))!, for: .normal)
return button
}()
deinit {
os_log(.info, log: .debug, "%{public}s[%{public}ld], %{public}s", ((#file as NSString).lastPathComponent), #line, #function)
}
}
extension MediaPreviewViewController {
override func viewDidLoad() {
super.viewDidLoad()
overrideUserInterfaceStyle = .dark
visualEffectView.frame = view.bounds
view.addSubview(visualEffectView)
pagingViewConttroller.view.translatesAutoresizingMaskIntoConstraints = false
addChild(pagingViewConttroller)
visualEffectView.contentView.addSubview(pagingViewConttroller.view)
NSLayoutConstraint.activate([
visualEffectView.topAnchor.constraint(equalTo: pagingViewConttroller.view.topAnchor),
visualEffectView.bottomAnchor.constraint(equalTo: pagingViewConttroller.view.bottomAnchor),
visualEffectView.leadingAnchor.constraint(equalTo: pagingViewConttroller.view.leadingAnchor),
visualEffectView.trailingAnchor.constraint(equalTo: pagingViewConttroller.view.trailingAnchor),
])
pagingViewConttroller.didMove(toParent: self)
closeButtonBackground.translatesAutoresizingMaskIntoConstraints = false
view.addSubview(closeButtonBackground)
NSLayoutConstraint.activate([
closeButtonBackground.topAnchor.constraint(equalTo: view.layoutMarginsGuide.topAnchor, constant: 12),
closeButtonBackground.leadingAnchor.constraint(equalTo: view.layoutMarginsGuide.leadingAnchor)
])
closeButtonBackgroundVisualEffectView.autoresizingMask = [.flexibleWidth, .flexibleHeight]
closeButtonBackground.contentView.addSubview(closeButtonBackgroundVisualEffectView)
closeButton.translatesAutoresizingMaskIntoConstraints = false
closeButtonBackgroundVisualEffectView.contentView.addSubview(closeButton)
NSLayoutConstraint.activate([
closeButton.topAnchor.constraint(equalTo: closeButtonBackgroundVisualEffectView.topAnchor),
closeButton.leadingAnchor.constraint(equalTo: closeButtonBackgroundVisualEffectView.leadingAnchor),
closeButtonBackgroundVisualEffectView.trailingAnchor.constraint(equalTo: closeButton.trailingAnchor),
closeButtonBackgroundVisualEffectView.bottomAnchor.constraint(equalTo: closeButton.bottomAnchor),
closeButton.heightAnchor.constraint(equalToConstant: MediaPreviewViewController.closeButtonSize.height).priority(.defaultHigh),
closeButton.widthAnchor.constraint(equalToConstant: MediaPreviewViewController.closeButtonSize.width).priority(.defaultHigh),
])
viewModel.mediaPreviewImageViewControllerDelegate = self
pagingViewConttroller.interPageSpacing = 10
pagingViewConttroller.delegate = self
pagingViewConttroller.dataSource = viewModel
closeButton.addTarget(self, action: #selector(MediaPreviewViewController.closeButtonPressed(_:)), for: .touchUpInside)
// bind view model
viewModel.currentPage
.receive(on: DispatchQueue.main)
.sink { [weak self] index in
guard let self = self else { return }
switch self.viewModel.pushTransitionItem.source {
case .mosaic(let mosaicImageViewContainer):
UIView.animate(withDuration: 0.3) {
mosaicImageViewContainer.setImageViews(alpha: 1)
mosaicImageViewContainer.setImageView(alpha: 0, index: index)
}
case .profileAvatar, .profileBanner:
break
}
}
.store(in: &disposeBag)
}
}
extension MediaPreviewViewController {
@objc private func closeButtonPressed(_ sender: UIButton) {
os_log(.info, log: .debug, "%{public}s[%{public}ld], %{public}s", ((#file as NSString).lastPathComponent), #line, #function)
dismiss(animated: true, completion: nil)
}
}
// MARK: - MediaPreviewingViewController
extension MediaPreviewViewController: MediaPreviewingViewController {
func isInteractiveDismissable() -> Bool {
if let mediaPreviewImageViewController = pagingViewConttroller.currentViewController as? MediaPreviewImageViewController {
let previewImageView = mediaPreviewImageViewController.previewImageView
// TODO: allow zooming pan dismiss
guard previewImageView.zoomScale == previewImageView.minimumZoomScale else {
return false
}
let safeAreaInsets = previewImageView.safeAreaInsets
let statusBarFrameHeight = view.window?.windowScene?.statusBarManager?.statusBarFrame.height ?? 0
let dismissable = previewImageView.contentOffset.y <= -(safeAreaInsets.top - statusBarFrameHeight)
os_log(.info, log: .debug, "%{public}s[%{public}ld], %{public}s: dismissable %s", ((#file as NSString).lastPathComponent), #line, #function, dismissable ? "true" : "false")
return dismissable
}
os_log(.info, log: .debug, "%{public}s[%{public}ld], %{public}s: dismissable false", ((#file as NSString).lastPathComponent), #line, #function)
return false
}
}
// MARK: - PageboyViewControllerDelegate
extension MediaPreviewViewController: PageboyViewControllerDelegate {
func pageboyViewController(
_ pageboyViewController: PageboyViewController,
willScrollToPageAt index: PageboyViewController.PageIndex,
direction: PageboyViewController.NavigationDirection,
animated: Bool
) {
// do nothing
}
func pageboyViewController(
_ pageboyViewController: PageboyViewController,
didScrollTo position: CGPoint,
direction: PageboyViewController.NavigationDirection,
animated: Bool
) {
// do nothing
}
func pageboyViewController(
_ pageboyViewController: PageboyViewController,
didScrollToPageAt index: PageboyViewController.PageIndex,
direction: PageboyViewController.NavigationDirection,
animated: Bool
) {
// update page control
// pageControl.currentPage = index
viewModel.currentPage.value = index
}
func pageboyViewController(
_ pageboyViewController: PageboyViewController,
didReloadWith currentViewController: UIViewController,
currentPageIndex: PageboyViewController.PageIndex
) {
// do nothing
}
}
// MARK: - MediaPreviewImageViewControllerDelegate
extension MediaPreviewViewController: MediaPreviewImageViewControllerDelegate {
func mediaPreviewImageViewController(_ viewController: MediaPreviewImageViewController, tapGestureRecognizerDidTrigger tapGestureRecognizer: UITapGestureRecognizer) {
// do nothing
}
func mediaPreviewImageViewController(_ viewController: MediaPreviewImageViewController, longPressGestureRecognizerDidTrigger longPressGestureRecognizer: UILongPressGestureRecognizer) {
// do nothing
}
func mediaPreviewImageViewController(_ viewController: MediaPreviewImageViewController, contextMenuActionPerform action: MediaPreviewImageViewController.ContextMenuAction) {
switch action {
case .savePhoto:
switch viewController.viewModel.item {
case .status(let meta):
context.photoLibraryService.saveImage(url: meta.url)
.sink { [weak self] completion in
guard let self = self else { return }
switch completion {
case .failure(let error):
guard let error = error as? PhotoLibraryService.PhotoLibraryError,
case .noPermission = error else { return }
let alertController = SettingService.openSettingsAlertController(title: L10n.Common.Alerts.SavePhotoFailure.title, message: L10n.Common.Alerts.SavePhotoFailure.message)
self.coordinator.present(scene: .alertController(alertController: alertController), from: self, transition: .alertController(animated: true, completion: nil))
case .finished:
break
}
} receiveValue: { _ in
// do nothing
}
.store(in: &context.disposeBag)
case .local(let meta):
context.photoLibraryService.save(image: meta.image, withNotificationFeedback: true)
}
case .share:
let applicationActivities: [UIActivity] = [
SafariActivity(sceneCoordinator: self.coordinator)
]
let activityViewController = UIActivityViewController(
activityItems: viewController.viewModel.item.activityItems,
applicationActivities: applicationActivities
)
activityViewController.popoverPresentationController?.sourceView = viewController.previewImageView.imageView
self.present(activityViewController, animated: true, completion: nil)
}
}
}

View File

@ -0,0 +1,148 @@
//
// MediaPreviewViewModel.swift
// Mastodon
//
// Created by MainasuK Cirno on 2021-4-28.
//
import UIKit
import Combine
import CoreData
import CoreDataStack
import Pageboy
final class MediaPreviewViewModel: NSObject {
// input
let context: AppContext
let initialItem: PreviewItem
weak var mediaPreviewImageViewControllerDelegate: MediaPreviewImageViewControllerDelegate?
let currentPage: CurrentValueSubject<Int, Never>
// output
let pushTransitionItem: MediaPreviewTransitionItem
let viewControllers: [UIViewController]
init(context: AppContext, meta: StatusImagePreviewMeta, pushTransitionItem: MediaPreviewTransitionItem) {
self.context = context
self.initialItem = .status(meta)
var viewControllers: [UIViewController] = []
let managedObjectContext = self.context.managedObjectContext
managedObjectContext.performAndWait {
let status = managedObjectContext.object(with: meta.statusObjectID) as! Status
guard let media = status.mediaAttachments?.sorted(by: { $0.index.compare($1.index) == .orderedAscending }) else { return }
for (entity, image) in zip(media, meta.preloadThumbnailImages) {
let thumbnail: UIImage? = image.flatMap { $0.size != CGSize(width: 1, height: 1) ? $0 : nil }
switch entity.type {
case .image:
guard let url = URL(string: entity.url) else { continue }
let meta = MediaPreviewImageViewModel.RemoteImagePreviewMeta(url: url, thumbnail: thumbnail)
let mediaPreviewImageModel = MediaPreviewImageViewModel(meta: meta)
let mediaPreviewImageViewController = MediaPreviewImageViewController()
mediaPreviewImageViewController.viewModel = mediaPreviewImageModel
viewControllers.append(mediaPreviewImageViewController)
default:
continue
}
}
}
self.viewControllers = viewControllers
self.currentPage = CurrentValueSubject(meta.initialIndex)
self.pushTransitionItem = pushTransitionItem
super.init()
}
init(context: AppContext, meta: ProfileBannerImagePreviewMeta, pushTransitionItem: MediaPreviewTransitionItem) {
self.context = context
self.initialItem = .profileBanner(meta)
var viewControllers: [UIViewController] = []
let managedObjectContext = self.context.managedObjectContext
managedObjectContext.performAndWait {
let account = managedObjectContext.object(with: meta.accountObjectID) as! MastodonUser
let avatarURL = account.headerImageURLWithFallback(domain: account.domain)
let meta = MediaPreviewImageViewModel.RemoteImagePreviewMeta(url: avatarURL, thumbnail: meta.preloadThumbnailImage)
let mediaPreviewImageModel = MediaPreviewImageViewModel(meta: meta)
let mediaPreviewImageViewController = MediaPreviewImageViewController()
mediaPreviewImageViewController.viewModel = mediaPreviewImageModel
viewControllers.append(mediaPreviewImageViewController)
}
self.viewControllers = viewControllers
self.currentPage = CurrentValueSubject(0)
self.pushTransitionItem = pushTransitionItem
super.init()
}
init(context: AppContext, meta: ProfileAvatarImagePreviewMeta, pushTransitionItem: MediaPreviewTransitionItem) {
self.context = context
self.initialItem = .profileAvatar(meta)
var viewControllers: [UIViewController] = []
let managedObjectContext = self.context.managedObjectContext
managedObjectContext.performAndWait {
let account = managedObjectContext.object(with: meta.accountObjectID) as! MastodonUser
let avatarURL = account.avatarImageURLWithFallback(domain: account.domain)
let meta = MediaPreviewImageViewModel.RemoteImagePreviewMeta(url: avatarURL, thumbnail: meta.preloadThumbnailImage)
let mediaPreviewImageModel = MediaPreviewImageViewModel(meta: meta)
let mediaPreviewImageViewController = MediaPreviewImageViewController()
mediaPreviewImageViewController.viewModel = mediaPreviewImageModel
viewControllers.append(mediaPreviewImageViewController)
}
self.viewControllers = viewControllers
self.currentPage = CurrentValueSubject(0)
self.pushTransitionItem = pushTransitionItem
super.init()
}
}
extension MediaPreviewViewModel {
enum PreviewItem {
case status(StatusImagePreviewMeta)
case profileAvatar(ProfileAvatarImagePreviewMeta)
case profileBanner(ProfileBannerImagePreviewMeta)
case local(LocalImagePreviewMeta)
}
struct StatusImagePreviewMeta {
let statusObjectID: NSManagedObjectID
let initialIndex: Int
let preloadThumbnailImages: [UIImage?]
}
struct ProfileAvatarImagePreviewMeta {
let accountObjectID: NSManagedObjectID
let preloadThumbnailImage: UIImage?
}
struct ProfileBannerImagePreviewMeta {
let accountObjectID: NSManagedObjectID
let preloadThumbnailImage: UIImage?
}
struct LocalImagePreviewMeta {
let image: UIImage
}
}
// MARK: - PageboyViewControllerDataSource
extension MediaPreviewViewModel: PageboyViewControllerDataSource {
func numberOfViewControllers(in pageboyViewController: PageboyViewController) -> Int {
return viewControllers.count
}
func viewController(for pageboyViewController: PageboyViewController, at index: PageboyViewController.PageIndex) -> UIViewController? {
let viewController = viewControllers[index]
if let mediaPreviewImageViewController = viewController as? MediaPreviewImageViewController {
mediaPreviewImageViewController.delegate = mediaPreviewImageViewControllerDelegate
}
return viewController
}
func defaultPage(for pageboyViewController: PageboyViewController) -> PageboyViewController.Page? {
guard case let .status(meta) = initialItem else { return nil }
return .at(index: meta.initialIndex)
}
}

View File

@ -0,0 +1,217 @@
//
// MediaPreviewImageView.swift
// Mastodon
//
// Created by MainasuK Cirno on 2021-4-28.
//
import os.log
import func AVFoundation.AVMakeRect
import UIKit
final class MediaPreviewImageView: UIScrollView {
let imageView: UIImageView = {
let imageView = UIImageView()
imageView.contentMode = .scaleAspectFit
imageView.clipsToBounds = true
imageView.isUserInteractionEnabled = true
return imageView
}()
let doubleTapGestureRecognizer: UITapGestureRecognizer = {
let tapGestureRecognizer = UITapGestureRecognizer()
tapGestureRecognizer.numberOfTapsRequired = 2
return tapGestureRecognizer
}()
private var containerFrame: CGRect?
override init(frame: CGRect) {
super.init(frame: frame)
_init()
}
required init?(coder: NSCoder) {
super.init(coder: coder)
_init()
}
}
extension MediaPreviewImageView {
private func _init() {
isUserInteractionEnabled = true
showsVerticalScrollIndicator = false
showsHorizontalScrollIndicator = false
bouncesZoom = true
minimumZoomScale = 1.0
maximumZoomScale = 4.0
addSubview(imageView)
doubleTapGestureRecognizer.addTarget(self, action: #selector(MediaPreviewImageView.doubleTapGestureRecognizerHandler(_:)))
imageView.addGestureRecognizer(doubleTapGestureRecognizer)
delegate = self
}
override func layoutSubviews() {
super.layoutSubviews()
guard let image = imageView.image else { return }
setup(image: image, container: self)
}
}
extension MediaPreviewImageView {
@objc private func doubleTapGestureRecognizerHandler(_ sender: UITapGestureRecognizer) {
os_log(.info, log: .debug, "%{public}s[%{public}ld], %{public}s", ((#file as NSString).lastPathComponent), #line, #function)
let middleZoomScale = 0.5 * maximumZoomScale
if zoomScale >= middleZoomScale {
setZoomScale(minimumZoomScale, animated: true)
} else {
let center = sender.location(in: imageView)
let zoomRect: CGRect = {
let width = bounds.width / middleZoomScale
let height = bounds.height / middleZoomScale
return CGRect(
x: center.x - 0.5 * width,
y: center.y - 0.5 * height,
width: width,
height: height
)
}()
zoom(to: zoomRect, animated: true)
}
}
}
extension MediaPreviewImageView {
func setup(image: UIImage, container: UIView, forceUpdate: Bool = false) {
guard image.size.width > 0, image.size.height > 0 else { return }
guard container.bounds.width > 0, container.bounds.height > 0 else { return }
// do not setup when frame not change except force update
if containerFrame == container.frame && !forceUpdate {
return
}
containerFrame = container.frame
// reset to normal
zoomScale = minimumZoomScale
let imageViewSize = AVMakeRect(aspectRatio: image.size, insideRect: container.bounds).size
let imageContentInset: UIEdgeInsets = {
if imageViewSize.width == container.bounds.width {
return UIEdgeInsets(top: 0.5 * (container.bounds.height - imageViewSize.height), left: 0, bottom: 0, right: 0)
} else {
return UIEdgeInsets(top: 0, left: 0.5 * (container.bounds.width - imageViewSize.width), bottom: 0, right: 0)
}
}()
imageView.frame = CGRect(origin: .zero, size: imageViewSize)
imageView.image = image
contentSize = imageViewSize
contentInset = imageContentInset
centerScrollViewContents()
contentOffset = CGPoint(x: -contentInset.left, y: -contentInset.top)
os_log(.info, log: .debug, "%{public}s[%{public}ld], %{public}s: setup image for container %s", ((#file as NSString).lastPathComponent), #line, #function, container.frame.debugDescription)
}
}
// MARK: - UIScrollViewDelegate
extension MediaPreviewImageView: UIScrollViewDelegate {
func scrollViewShouldScrollToTop(_ scrollView: UIScrollView) -> Bool {
return false
}
func scrollViewDidZoom(_ scrollView: UIScrollView) {
os_log(.info, log: .debug, "%{public}s[%{public}ld], %{public}s", ((#file as NSString).lastPathComponent), #line, #function)
centerScrollViewContents()
// set bounce when zoom in
alwaysBounceVertical = zoomScale > minimumZoomScale
}
func viewForZooming(in scrollView: UIScrollView) -> UIView? {
return imageView
}
}
// Ref: https://stackoverflow.com/questions/14069571/keep-zoomable-image-in-center-of-uiscrollview
extension MediaPreviewImageView {
private var scrollViewVisibleSize: CGSize {
let contentInset = self.contentInset
let scrollViewSize = bounds.standardized.size
let width = scrollViewSize.width - contentInset.left - contentInset.right
let height = scrollViewSize.height - contentInset.top - contentInset.bottom
return CGSize(width: width, height: height)
}
private var scrollViewCenter: CGPoint {
let scrollViewSize = self.scrollViewVisibleSize
return CGPoint(x: scrollViewSize.width / 2.0,
y: scrollViewSize.height / 2.0)
}
private func centerScrollViewContents() {
guard let image = imageView.image else { return }
let imageViewSize = imageView.frame.size
let imageSize = image.size
var realImageSize: CGSize
if imageSize.width / imageSize.height > imageViewSize.width / imageViewSize.height {
realImageSize = CGSize(width: imageViewSize.width,
height: imageViewSize.width / imageSize.width * imageSize.height)
} else {
realImageSize = CGSize(width: imageViewSize.height / imageSize.height * imageSize.width,
height: imageViewSize.height)
}
var frame = CGRect.zero
frame.size = realImageSize
imageView.frame = frame
let screenSize = self.frame.size
let offsetX = screenSize.width > realImageSize.width ? (screenSize.width - realImageSize.width) / 2 : 0
let offsetY = screenSize.height > realImageSize.height ? (screenSize.height - realImageSize.height) / 2 : 0
contentInset = UIEdgeInsets(top: offsetY, left: offsetX, bottom: offsetY, right: offsetX)
// The scroll view has zoomed, so you need to re-center the contents
let scrollViewSize = scrollViewVisibleSize
// First assume that image center coincides with the contents box center.
// This is correct when the image is bigger than scrollView due to zoom
var imageCenter = CGPoint(x: contentSize.width / 2.0,
y: contentSize.height / 2.0)
let center = scrollViewCenter
//if image is smaller than the scrollView visible size - fix the image center accordingly
if contentSize.width < scrollViewSize.width {
imageCenter.x = center.x
}
if contentSize.height < scrollViewSize.height {
imageCenter.y = center.y
}
imageView.center = imageCenter
}
}

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@ -0,0 +1,146 @@
//
// MediaPreviewImageViewController.swift
// Mastodon
//
// Created by MainasuK Cirno on 2021-4-28.
//
import os.log
import UIKit
import Combine
protocol MediaPreviewImageViewControllerDelegate: AnyObject {
func mediaPreviewImageViewController(_ viewController: MediaPreviewImageViewController, tapGestureRecognizerDidTrigger tapGestureRecognizer: UITapGestureRecognizer)
func mediaPreviewImageViewController(_ viewController: MediaPreviewImageViewController, longPressGestureRecognizerDidTrigger longPressGestureRecognizer: UILongPressGestureRecognizer)
func mediaPreviewImageViewController(_ viewController: MediaPreviewImageViewController, contextMenuActionPerform action: MediaPreviewImageViewController.ContextMenuAction)
}
final class MediaPreviewImageViewController: UIViewController {
var disposeBag = Set<AnyCancellable>()
var observations = Set<NSKeyValueObservation>()
var viewModel: MediaPreviewImageViewModel!
weak var delegate: MediaPreviewImageViewControllerDelegate?
// let progressBarView = ProgressBarView()
let previewImageView = MediaPreviewImageView()
let tapGestureRecognizer = UITapGestureRecognizer.singleTapGestureRecognizer
let longPressGestureRecognizer = UILongPressGestureRecognizer()
deinit {
os_log("%{public}s[%{public}ld], %{public}s", ((#file as NSString).lastPathComponent), #line, #function)
previewImageView.imageView.af.cancelImageRequest()
}
}
extension MediaPreviewImageViewController {
override func viewDidLoad() {
super.viewDidLoad()
// progressBarView.tintColor = .white
// progressBarView.translatesAutoresizingMaskIntoConstraints = false
// view.addSubview(progressBarView)
// NSLayoutConstraint.activate([
// progressBarView.centerXAnchor.constraint(equalTo: view.centerXAnchor),
// progressBarView.centerYAnchor.constraint(equalTo: view.centerYAnchor),
// progressBarView.widthAnchor.constraint(equalToConstant: 120),
// progressBarView.heightAnchor.constraint(equalToConstant: 44),
// ])
previewImageView.translatesAutoresizingMaskIntoConstraints = false
view.addSubview(previewImageView)
NSLayoutConstraint.activate([
previewImageView.frameLayoutGuide.topAnchor.constraint(equalTo: view.topAnchor),
previewImageView.frameLayoutGuide.leadingAnchor.constraint(equalTo: view.leadingAnchor),
previewImageView.frameLayoutGuide.trailingAnchor.constraint(equalTo: view.trailingAnchor),
previewImageView.frameLayoutGuide.bottomAnchor.constraint(equalTo: view.bottomAnchor),
])
tapGestureRecognizer.addTarget(self, action: #selector(MediaPreviewImageViewController.tapGestureRecognizerHandler(_:)))
longPressGestureRecognizer.addTarget(self, action: #selector(MediaPreviewImageViewController.longPressGestureRecognizerHandler(_:)))
tapGestureRecognizer.require(toFail: previewImageView.doubleTapGestureRecognizer)
tapGestureRecognizer.require(toFail: longPressGestureRecognizer)
previewImageView.addGestureRecognizer(tapGestureRecognizer)
previewImageView.addGestureRecognizer(longPressGestureRecognizer)
let previewImageViewContextMenuInteraction = UIContextMenuInteraction(delegate: self)
previewImageView.addInteraction(previewImageViewContextMenuInteraction)
viewModel.image
.receive(on: RunLoop.main) // use RunLoop prevent set image during zooming (TODO: handle transitioning state)
.sink { [weak self] image in
guard let self = self else { return }
guard let image = image else { return }
self.previewImageView.imageView.image = image
self.previewImageView.setup(image: image, container: self.previewImageView, forceUpdate: true)
}
.store(in: &disposeBag)
}
}
extension MediaPreviewImageViewController {
@objc private func tapGestureRecognizerHandler(_ sender: UITapGestureRecognizer) {
os_log(.info, log: .debug, "%{public}s[%{public}ld], %{public}s", ((#file as NSString).lastPathComponent), #line, #function)
delegate?.mediaPreviewImageViewController(self, tapGestureRecognizerDidTrigger: sender)
}
@objc private func longPressGestureRecognizerHandler(_ sender: UILongPressGestureRecognizer) {
os_log(.info, log: .debug, "%{public}s[%{public}ld], %{public}s", ((#file as NSString).lastPathComponent), #line, #function)
delegate?.mediaPreviewImageViewController(self, longPressGestureRecognizerDidTrigger: sender)
}
}
// MARK: - UIContextMenuInteractionDelegate
extension MediaPreviewImageViewController: UIContextMenuInteractionDelegate {
func contextMenuInteraction(_ interaction: UIContextMenuInteraction, configurationForMenuAtLocation location: CGPoint) -> UIContextMenuConfiguration? {
os_log(.info, log: .debug, "%{public}s[%{public}ld], %{public}s", ((#file as NSString).lastPathComponent), #line, #function)
let previewProvider: UIContextMenuContentPreviewProvider = { () -> UIViewController? in
return nil
}
let saveAction = UIAction(
title: L10n.Common.Controls.Actions.savePhoto, image: UIImage(systemName: "square.and.arrow.down")!, identifier: nil, discoverabilityTitle: nil, attributes: [], state: .off
) { [weak self] _ in
os_log(.info, log: .debug, "%{public}s[%{public}ld], %{public}s: save photo", ((#file as NSString).lastPathComponent), #line, #function)
guard let self = self else { return }
self.delegate?.mediaPreviewImageViewController(self, contextMenuActionPerform: .savePhoto)
}
let shareAction = UIAction(
title: L10n.Common.Controls.Actions.share, image: UIImage(systemName: "square.and.arrow.up")!, identifier: nil, discoverabilityTitle: nil, attributes: [], state: .off
) { [weak self] _ in
os_log(.info, log: .debug, "%{public}s[%{public}ld], %{public}s: share", ((#file as NSString).lastPathComponent), #line, #function)
guard let self = self else { return }
self.delegate?.mediaPreviewImageViewController(self, contextMenuActionPerform: .share)
}
let actionProvider: UIContextMenuActionProvider = { elements -> UIMenu? in
return UIMenu(title: "", image: nil, identifier: nil, options: [], children: [
saveAction,
shareAction
])
}
return UIContextMenuConfiguration(identifier: nil, previewProvider: previewProvider, actionProvider: actionProvider)
}
func contextMenuInteraction(_ interaction: UIContextMenuInteraction, previewForHighlightingMenuWithConfiguration configuration: UIContextMenuConfiguration) -> UITargetedPreview? {
// set preview view
return UITargetedPreview(view: previewImageView.imageView)
}
}
extension MediaPreviewImageViewController {
enum ContextMenuAction {
case savePhoto
case share
}
}

View File

@ -0,0 +1,73 @@
//
// MediaPreviewImageViewModel.swift
// Mastodon
//
// Created by MainasuK Cirno on 2021-4-28.
//
import os.log
import UIKit
import Combine
import AlamofireImage
class MediaPreviewImageViewModel {
// input
let item: ImagePreviewItem
// output
let image: CurrentValueSubject<UIImage?, Never>
init(meta: RemoteImagePreviewMeta) {
self.item = .status(meta)
self.image = CurrentValueSubject(meta.thumbnail)
let url = meta.url
ImageDownloader.default.download(URLRequest(url: url), completion: { [weak self] response in
guard let self = self else { return }
switch response.result {
case .failure(let error):
os_log(.info, log: .debug, "%{public}s[%{public}ld], %{public}s: download image %s fail: %s", ((#file as NSString).lastPathComponent), #line, #function, url.debugDescription, error.localizedDescription)
case .success(let image):
os_log(.info, log: .debug, "%{public}s[%{public}ld], %{public}s: download image %s success", ((#file as NSString).lastPathComponent), #line, #function, url.debugDescription)
self.image.value = image
}
})
}
init(meta: LocalImagePreviewMeta) {
self.item = .local(meta)
self.image = CurrentValueSubject(meta.image)
}
}
extension MediaPreviewImageViewModel {
enum ImagePreviewItem {
case status(RemoteImagePreviewMeta)
case local(LocalImagePreviewMeta)
var activityItems: [Any] {
var items: [Any] = []
switch self {
case .status(let meta):
items.append(meta.url)
case .local(let meta):
items.append(meta.image)
}
return items
}
}
struct RemoteImagePreviewMeta {
let url: URL
let thumbnail: UIImage?
}
struct LocalImagePreviewMeta {
let image: UIImage
}
}

View File

@ -0,0 +1,11 @@
//
// MediaPreviewPagingViewController.swift
// Mastodon
//
// Created by MainasuK Cirno on 2021-4-28.
//
import UIKit
import Pageboy
final class MediaPreviewPagingViewController: PageboyViewController { }

View File

@ -14,7 +14,7 @@ import AVKit
import Combine
import GameplayKit
final class FavoriteViewController: UIViewController, NeedsDependency {
final class FavoriteViewController: UIViewController, NeedsDependency, MediaPreviewableViewController {
weak var context: AppContext! { willSet { precondition(!isViewLoaded) } }
weak var coordinator: SceneCoordinator! { willSet { precondition(!isViewLoaded) } }
@ -22,6 +22,8 @@ final class FavoriteViewController: UIViewController, NeedsDependency {
var disposeBag = Set<AnyCancellable>()
var viewModel: FavoriteViewModel!
let mediaPreviewTransitionController = MediaPreviewTransitionController()
let titleView = DoubleTitleLabelNavigationBarTitleView()
lazy var tableView: UITableView = {
@ -118,6 +120,22 @@ extension FavoriteViewController: UITableViewDelegate {
aspectTableView(tableView, didSelectRowAt: indexPath)
}
func tableView(_ tableView: UITableView, contextMenuConfigurationForRowAt indexPath: IndexPath, point: CGPoint) -> UIContextMenuConfiguration? {
return aspectTableView(tableView, contextMenuConfigurationForRowAt: indexPath, point: point)
}
func tableView(_ tableView: UITableView, previewForHighlightingContextMenuWithConfiguration configuration: UIContextMenuConfiguration) -> UITargetedPreview? {
return aspectTableView(tableView, previewForHighlightingContextMenuWithConfiguration: configuration)
}
func tableView(_ tableView: UITableView, previewForDismissingContextMenuWithConfiguration configuration: UIContextMenuConfiguration) -> UITargetedPreview? {
return aspectTableView(tableView, previewForDismissingContextMenuWithConfiguration: configuration)
}
func tableView(_ tableView: UITableView, willPerformPreviewActionForMenuWith configuration: UIContextMenuConfiguration, animator: UIContextMenuInteractionCommitAnimating) {
aspectTableView(tableView, willPerformPreviewActionForMenuWith: configuration, animator: animator)
}
}
// MARK: - UITableViewDataSourcePrefetching

View File

@ -150,8 +150,7 @@ extension ProfileHeaderViewController {
with: AvatarConfigurableViewConfiguration(
avatarImageURL: image == nil ? url : nil, // set only when image empty
placeholderImage: image,
borderColor: .white,
borderWidth: 2
keepImageCorner: true // fit preview transitioning
)
)
}
@ -329,7 +328,9 @@ extension ProfileHeaderViewController {
let nameTextFieldInWindow = profileHeaderView.nameTextField.superview!.convert(profileHeaderView.nameTextField.frame, to: nil)
let nameTextFieldTopToNavigationBarBottomOffset = containerSafeAreaInset.top - nameTextFieldInWindow.origin.y
let titleViewContentOffset: CGFloat = titleView.frame.height - nameTextFieldTopToNavigationBarBottomOffset
titleView.containerView.transform = CGAffineTransform(translationX: 0, y: max(0, titleViewContentOffset))
let transformY = max(0, titleViewContentOffset)
titleView.containerView.transform = CGAffineTransform(translationX: 0, y: transformY)
viewModel.isTitleViewDisplaying.value = transformY < titleView.containerView.frame.height
if viewModel.viewDidAppear.value {
viewModel.isTitleViewContentOffsetSet.value = true
@ -348,6 +349,7 @@ extension ProfileHeaderViewController {
}
private func setProfileBannerFade(alpha: CGFloat) {
profileHeaderView.avatarImageViewBackgroundView.alpha = alpha
profileHeaderView.avatarImageView.alpha = alpha
profileHeaderView.editAvatarBackgroundView.alpha = alpha
profileHeaderView.nameTextFieldBackgroundView.alpha = alpha

View File

@ -24,6 +24,7 @@ final class ProfileHeaderViewModel {
// output
let displayProfileInfo = ProfileInfo()
let editProfileInfo = ProfileInfo()
let isTitleViewDisplaying = CurrentValueSubject<Bool, Never>(false)
init(context: AppContext) {
self.context = context

View File

@ -10,7 +10,9 @@ import UIKit
import ActiveLabel
import TwitterTextEditor
protocol ProfileHeaderViewDelegate: class {
protocol ProfileHeaderViewDelegate: AnyObject {
func profileHeaderView(_ profileHeaderView: ProfileHeaderView, avatarImageViewDidPressed imageView: UIImageView)
func profileHeaderView(_ profileHeaderView: ProfileHeaderView, bannerImageViewDidPressed imageView: UIImageView)
func profileHeaderView(_ profileHeaderView: ProfileHeaderView, relationshipButtonDidPressed button: ProfileRelationshipActionButton)
func profileHeaderView(_ profileHeaderView: ProfileHeaderView, activeLabel: ActiveLabel, entityDidPressed entity: ActiveEntity)
@ -23,6 +25,8 @@ final class ProfileHeaderView: UIView {
static let avatarImageViewSize = CGSize(width: 56, height: 56)
static let avatarImageViewCornerRadius: CGFloat = 6
static let avatarImageViewBorderColor = UIColor.white
static let avatarImageViewBorderWidth: CGFloat = 2
static let friendshipActionButtonSize = CGSize(width: 108, height: 34)
static let bannerImageViewPlaceholderColor = UIColor.systemGray
@ -40,6 +44,7 @@ final class ProfileHeaderView: UIView {
imageView.image = .placeholder(color: ProfileHeaderView.bannerImageViewPlaceholderColor)
imageView.backgroundColor = ProfileHeaderView.bannerImageViewPlaceholderColor
imageView.layer.masksToBounds = true
imageView.isUserInteractionEnabled = true
// #if DEBUG
// imageView.image = .placeholder(color: .red)
// #endif
@ -51,6 +56,16 @@ final class ProfileHeaderView: UIView {
return overlayView
}()
let avatarImageViewBackgroundView: UIView = {
let view = UIView()
view.layer.masksToBounds = true
view.layer.cornerRadius = ProfileHeaderView.avatarImageViewCornerRadius
view.layer.cornerCurve = .continuous
view.layer.borderColor = ProfileHeaderView.avatarImageViewBorderColor.cgColor
view.layer.borderWidth = ProfileHeaderView.avatarImageViewBorderWidth
return view
}()
let avatarImageView: UIImageView = {
let imageView = UIImageView()
let placeholderImage = UIImage
@ -188,6 +203,15 @@ extension ProfileHeaderView {
avatarImageView.heightAnchor.constraint(equalToConstant: ProfileHeaderView.avatarImageViewSize.height).priority(.required - 1),
])
avatarImageViewBackgroundView.translatesAutoresizingMaskIntoConstraints = false
bannerContainerView.insertSubview(avatarImageViewBackgroundView, belowSubview: avatarImageView)
NSLayoutConstraint.activate([
avatarImageView.topAnchor.constraint(equalTo: avatarImageViewBackgroundView.topAnchor, constant: 0.5 * ProfileHeaderView.avatarImageViewBorderWidth),
avatarImageView.leadingAnchor.constraint(equalTo: avatarImageViewBackgroundView.leadingAnchor, constant: 0.5 * ProfileHeaderView.avatarImageViewBorderWidth),
avatarImageViewBackgroundView.trailingAnchor.constraint(equalTo: avatarImageView.trailingAnchor, constant: 0.5 * ProfileHeaderView.avatarImageViewBorderWidth),
avatarImageViewBackgroundView.bottomAnchor.constraint(equalTo: avatarImageView.bottomAnchor, constant: 0.5 * ProfileHeaderView.avatarImageViewBorderWidth),
])
editAvatarBackgroundView.translatesAutoresizingMaskIntoConstraints = false
avatarImageView.addSubview(editAvatarBackgroundView)
NSLayoutConstraint.activate([
@ -313,6 +337,14 @@ extension ProfileHeaderView {
bioActiveLabel.delegate = self
let avatarImageViewSingleTapGestureRecognizer = UITapGestureRecognizer.singleTapGestureRecognizer
avatarImageView.addGestureRecognizer(avatarImageViewSingleTapGestureRecognizer)
avatarImageViewSingleTapGestureRecognizer.addTarget(self, action: #selector(ProfileHeaderView.avatarImageViewDidPressed(_:)))
let bannerImageViewSingleTapGestureRecognizer = UITapGestureRecognizer.singleTapGestureRecognizer
bannerImageView.addGestureRecognizer(bannerImageViewSingleTapGestureRecognizer)
bannerImageViewSingleTapGestureRecognizer.addTarget(self, action: #selector(ProfileHeaderView.bannerImageViewDidPressed(_:)))
relationshipActionButton.addTarget(self, action: #selector(ProfileHeaderView.relationshipActionButtonDidPressed(_:)), for: .touchUpInside)
configure(state: .normal)
@ -372,6 +404,16 @@ extension ProfileHeaderView {
assert(sender === relationshipActionButton)
delegate?.profileHeaderView(self, relationshipButtonDidPressed: relationshipActionButton)
}
@objc private func avatarImageViewDidPressed(_ sender: UITapGestureRecognizer) {
os_log(.info, log: .debug, "%{public}s[%{public}ld], %{public}s", ((#file as NSString).lastPathComponent), #line, #function)
delegate?.profileHeaderView(self, avatarImageViewDidPressed: avatarImageView)
}
@objc private func bannerImageViewDidPressed(_ sender: UITapGestureRecognizer) {
os_log(.info, log: .debug, "%{public}s[%{public}ld], %{public}s", ((#file as NSString).lastPathComponent), #line, #function)
delegate?.profileHeaderView(self, bannerImageViewDidPressed: bannerImageView)
}
}
// MARK: - ActiveLabelDelegate

View File

@ -10,7 +10,7 @@ import UIKit
import Combine
import ActiveLabel
final class ProfileViewController: UIViewController, NeedsDependency {
final class ProfileViewController: UIViewController, NeedsDependency, MediaPreviewableViewController {
weak var context: AppContext! { willSet { precondition(!isViewLoaded) } }
weak var coordinator: SceneCoordinator! { willSet { precondition(!isViewLoaded) } }
@ -18,6 +18,8 @@ final class ProfileViewController: UIViewController, NeedsDependency {
var disposeBag = Set<AnyCancellable>()
var viewModel: ProfileViewModel!
let mediaPreviewTransitionController = MediaPreviewTransitionController()
private(set) lazy var cancelEditingBarButtonItem: UIBarButtonItem = {
let barButtonItem = UIBarButtonItem(title: L10n.Common.Controls.Actions.cancel, style: .plain, target: self, action: #selector(ProfileViewController.cancelEditingBarButtonItemPressed(_:)))
barButtonItem.tintColor = .white
@ -170,13 +172,14 @@ extension ProfileViewController {
}
.store(in: &disposeBag)
Publishers.CombineLatest3 (
Publishers.CombineLatest4 (
viewModel.suspended.eraseToAnyPublisher(),
profileHeaderViewController.viewModel.isTitleViewDisplaying.eraseToAnyPublisher(),
editingAndUpdatingPublisher.eraseToAnyPublisher(),
barButtonItemHiddenPublisher.eraseToAnyPublisher()
)
.receive(on: DispatchQueue.main)
.sink { [weak self] suspended, tuple1, tuple2 in
.sink { [weak self] suspended, isTitleViewDisplaying, tuple1, tuple2 in
guard let self = self else { return }
let (isEditing, _) = tuple1
let (isMeBarButtonItemsHidden, isReplyBarButtonItemHidden, isMoreMenuBarButtonItemHidden) = tuple2
@ -195,6 +198,10 @@ extension ProfileViewController {
return
}
guard !isTitleViewDisplaying else {
return
}
guard isMeBarButtonItemsHidden else {
items.append(self.settingBarButtonItem)
items.append(self.shareBarButtonItem)
@ -645,6 +652,72 @@ extension ProfileViewController: ProfilePagingViewControllerDelegate {
// MARK: - ProfileHeaderViewDelegate
extension ProfileViewController: ProfileHeaderViewDelegate {
func profileHeaderView(_ profileHeaderView: ProfileHeaderView, avatarImageViewDidPressed imageView: UIImageView) {
guard let mastodonUser = viewModel.mastodonUser.value else { return }
guard let avatar = imageView.image else { return }
let meta = MediaPreviewViewModel.ProfileAvatarImagePreviewMeta(
accountObjectID: mastodonUser.objectID,
preloadThumbnailImage: avatar
)
let pushTransitionItem = MediaPreviewTransitionItem(
source: .profileAvatar(profileHeaderView),
previewableViewController: self
)
pushTransitionItem.aspectRatio = CGSize(width: 100, height: 100)
pushTransitionItem.sourceImageView = imageView
pushTransitionItem.sourceImageViewCornerRadius = ProfileHeaderView.avatarImageViewCornerRadius
pushTransitionItem.initialFrame = {
let initialFrame = imageView.superview!.convert(imageView.frame, to: nil)
assert(initialFrame != .zero)
return initialFrame
}()
pushTransitionItem.image = avatar
let mediaPreviewViewModel = MediaPreviewViewModel(
context: context,
meta: meta,
pushTransitionItem: pushTransitionItem
)
DispatchQueue.main.async {
self.coordinator.present(scene: .mediaPreview(viewModel: mediaPreviewViewModel), from: self, transition: .custom(transitioningDelegate: self.mediaPreviewTransitionController))
}
}
func profileHeaderView(_ profileHeaderView: ProfileHeaderView, bannerImageViewDidPressed imageView: UIImageView) {
// not preview header banner when editing
guard !viewModel.isEditing.value else { return }
guard let mastodonUser = viewModel.mastodonUser.value else { return }
guard let header = imageView.image else { return }
let meta = MediaPreviewViewModel.ProfileBannerImagePreviewMeta(
accountObjectID: mastodonUser.objectID,
preloadThumbnailImage: header
)
let pushTransitionItem = MediaPreviewTransitionItem(
source: .profileBanner(profileHeaderView),
previewableViewController: self
)
pushTransitionItem.aspectRatio = header.size
pushTransitionItem.sourceImageView = imageView
pushTransitionItem.initialFrame = {
let initialFrame = imageView.superview!.convert(imageView.frame, to: nil)
assert(initialFrame != .zero)
return initialFrame
}()
pushTransitionItem.image = header
let mediaPreviewViewModel = MediaPreviewViewModel(
context: context,
meta: meta,
pushTransitionItem: pushTransitionItem
)
DispatchQueue.main.async {
self.coordinator.present(scene: .mediaPreview(viewModel: mediaPreviewViewModel), from: self, transition: .custom(transitioningDelegate: self.mediaPreviewTransitionController))
}
}
func profileHeaderView(_ profileHeaderView: ProfileHeaderView, relationshipButtonDidPressed button: ProfileRelationshipActionButton) {
let relationshipActionSet = viewModel.relationshipActionOptionSet.value
if relationshipActionSet.contains(.edit) {

View File

@ -13,7 +13,7 @@ import CoreDataStack
import GameplayKit
// TODO: adopt MediaPreviewableViewController
final class UserTimelineViewController: UIViewController, NeedsDependency {
final class UserTimelineViewController: UIViewController, NeedsDependency, MediaPreviewableViewController {
weak var context: AppContext! { willSet { precondition(!isViewLoaded) } }
weak var coordinator: SceneCoordinator! { willSet { precondition(!isViewLoaded) } }
@ -21,7 +21,7 @@ final class UserTimelineViewController: UIViewController, NeedsDependency {
var disposeBag = Set<AnyCancellable>()
var viewModel: UserTimelineViewModel!
// let mediaPreviewTransitionController = MediaPreviewTransitionController()
let mediaPreviewTransitionController = MediaPreviewTransitionController()
lazy var tableView: UITableView = {
let tableView = UITableView()
@ -128,6 +128,22 @@ extension UserTimelineViewController: UITableViewDelegate {
aspectTableView(tableView, didSelectRowAt: indexPath)
}
func tableView(_ tableView: UITableView, contextMenuConfigurationForRowAt indexPath: IndexPath, point: CGPoint) -> UIContextMenuConfiguration? {
return aspectTableView(tableView, contextMenuConfigurationForRowAt: indexPath, point: point)
}
func tableView(_ tableView: UITableView, previewForHighlightingContextMenuWithConfiguration configuration: UIContextMenuConfiguration) -> UITargetedPreview? {
return aspectTableView(tableView, previewForHighlightingContextMenuWithConfiguration: configuration)
}
func tableView(_ tableView: UITableView, previewForDismissingContextMenuWithConfiguration configuration: UIContextMenuConfiguration) -> UITargetedPreview? {
return aspectTableView(tableView, previewForDismissingContextMenuWithConfiguration: configuration)
}
func tableView(_ tableView: UITableView, willPerformPreviewActionForMenuWith configuration: UIContextMenuConfiguration, animator: UIContextMenuInteractionCommitAnimating) {
aspectTableView(tableView, willPerformPreviewActionForMenuWith: configuration, animator: animator)
}
}
// MARK: - UITableViewDataSourcePrefetching

View File

@ -13,13 +13,15 @@ import GameplayKit
import os.log
import UIKit
final class PublicTimelineViewController: UIViewController, NeedsDependency {
final class PublicTimelineViewController: UIViewController, NeedsDependency, MediaPreviewableViewController {
weak var context: AppContext! { willSet { precondition(!isViewLoaded) } }
weak var coordinator: SceneCoordinator! { willSet { precondition(!isViewLoaded) } }
var disposeBag = Set<AnyCancellable>()
var viewModel: PublicTimelineViewModel!
let mediaPreviewTransitionController = MediaPreviewTransitionController()
let refreshControl = UIRefreshControl()
lazy var tableView: UITableView = {

View File

@ -0,0 +1,61 @@
//
// ContextMenuImagePreviewViewController.swift
// Mastodon
//
// Created by MainasuK Cirno on 2021-4-30.
//
import func AVFoundation.AVMakeRect
import UIKit
import Combine
final class ContextMenuImagePreviewViewController: UIViewController {
var disposeBag = Set<AnyCancellable>()
var viewModel: ContextMenuImagePreviewViewModel!
let imageView: UIImageView = {
let imageView = UIImageView()
imageView.contentMode = .scaleAspectFill
imageView.layer.masksToBounds = true
return imageView
}()
}
extension ContextMenuImagePreviewViewController {
override func viewDidLoad() {
super.viewDidLoad()
imageView.translatesAutoresizingMaskIntoConstraints = false
view.addSubview(imageView)
NSLayoutConstraint.activate([
imageView.topAnchor.constraint(equalTo: view.topAnchor),
imageView.leadingAnchor.constraint(equalTo: view.leadingAnchor),
imageView.trailingAnchor.constraint(equalTo: view.trailingAnchor),
imageView.bottomAnchor.constraint(equalTo: view.bottomAnchor),
])
imageView.image = viewModel.thumbnail
let frame = AVMakeRect(aspectRatio: viewModel.aspectRatio, insideRect: view.bounds)
preferredContentSize = frame.size
viewModel.url
.sink { [weak self] url in
guard let self = self else { return }
guard let url = url else { return }
self.imageView.af.setImage(
withURL: url,
placeholderImage: self.viewModel.thumbnail,
imageTransition: .crossDissolve(0.2),
runImageTransitionIfCached: true,
completion: nil
)
}
.store(in: &disposeBag)
}
}

View File

@ -0,0 +1,25 @@
//
// ContextMenuImagePreviewViewModel.swift
// Mastodon
//
// Created by MainasuK Cirno on 2021-4-30.
//
import UIKit
import Combine
final class ContextMenuImagePreviewViewModel {
var disposeBag = Set<AnyCancellable>()
// input
let aspectRatio: CGSize
let thumbnail: UIImage?
let url = CurrentValueSubject<URL?, Never>(nil)
init(aspectRatio: CGSize, thumbnail: UIImage?) {
self.aspectRatio = aspectRatio
self.thumbnail = thumbnail
}
}

View File

@ -0,0 +1,16 @@
//
// TimelineTableViewCellContextMenuConfiguration.swift
// Mastodon
//
// Created by MainasuK Cirno on 2021-4-30.
//
import UIKit
// note: use subclass configuration not custom NSCopying identifier due to identifier cause crash issue
final class TimelineTableViewCellContextMenuConfiguration: UIContextMenuConfiguration {
var indexPath: IndexPath?
var index: Int?
}

View File

@ -9,14 +9,14 @@ import os.log
import func AVFoundation.AVMakeRect
import UIKit
protocol MosaicImageViewContainerPresentable: class {
protocol MosaicImageViewContainerPresentable: AnyObject {
var mosaicImageViewContainer: MosaicImageViewContainer { get }
var isRevealing: Bool { get }
}
protocol MosaicImageViewContainerDelegate: class {
protocol MosaicImageViewContainerDelegate: AnyObject {
func mosaicImageViewContainer(_ mosaicImageViewContainer: MosaicImageViewContainer, didTapImageView imageView: UIImageView, atIndex index: Int)
func mosaicImageViewContainer(_ mosaicImageViewContainer: MosaicImageViewContainer, contentWarningOverlayViewDidPressed contentWarningOverlayView: ContentWarningOverlayView)
}
final class MosaicImageViewContainer: UIView {
@ -296,6 +296,41 @@ extension MosaicImageViewContainer {
}
// FIXME: refactor blurhash image and preview image
extension MosaicImageViewContainer {
func setImageViews(alpha: CGFloat) {
// blurhashOverlayImageViews.forEach { $0.alpha = alpha }
imageViews.forEach { $0.alpha = alpha }
}
func setImageView(alpha: CGFloat, index: Int) {
// if index < blurhashOverlayImageViews.count {
// blurhashOverlayImageViews[index].alpha = alpha
// }
if index < imageViews.count {
imageViews[index].alpha = alpha
}
}
func thumbnail(at index: Int) -> UIImage? {
guard blurhashOverlayImageViews.count == imageViews.count else { return nil }
let tuples = Array(zip(blurhashOverlayImageViews, imageViews))
guard index < tuples.count else { return nil }
let tuple = tuples[index]
return tuple.1.image ?? tuple.0.image
}
func thumbnails() -> [UIImage?] {
guard blurhashOverlayImageViews.count == imageViews.count else { return [] }
let tuples = Array(zip(blurhashOverlayImageViews, imageViews))
return tuples.map { blurhashOverlayImageView, imageView -> UIImage? in
return imageView.image ?? blurhashOverlayImageView.image
}
}
}
extension MosaicImageViewContainer {
@objc private func visualEffectViewTapGestureRecognizerHandler(_ sender: UITapGestureRecognizer) {

View File

@ -194,6 +194,8 @@ final class StatusView: UIView {
let activeTextLabel = ActiveLabel(style: .default)
private let headerInfoLabelTapGestureRecognizer = UITapGestureRecognizer.singleTapGestureRecognizer
var isRevealing = true
override init(frame: CGRect) {
super.init(frame: frame)
@ -468,6 +470,8 @@ extension StatusView {
}
func updateRevealContentWarningButton(isRevealing: Bool) {
self.isRevealing = isRevealing
if !isRevealing {
let image = traitCollection.userInterfaceStyle == .light ? UIImage(systemName: "eye")! : UIImage(systemName: "eye.fill")
revealContentWarningButton.setImage(image, for: .normal)

View File

@ -13,7 +13,7 @@ import CoreData
import CoreDataStack
import ActiveLabel
protocol StatusTableViewCellDelegate: class {
protocol StatusTableViewCellDelegate: AnyObject {
var context: AppContext! { get }
var managedObjectContext: NSManagedObjectContext { get }
@ -48,7 +48,7 @@ extension StatusTableViewCellDelegate {
}
final class StatusTableViewCell: UITableViewCell, StatusCell {
static let bottomPaddingHeight: CGFloat = 10
weak var delegate: StatusTableViewCellDelegate?
@ -62,7 +62,7 @@ final class StatusTableViewCell: UITableViewCell, StatusCell {
let threadMetaStackView = UIStackView()
let threadMetaView = ThreadMetaView()
let separatorLine = UIView.separatorLine
var separatorLineToEdgeLeadingLayoutConstraint: NSLayoutConstraint!
var separatorLineToEdgeTrailingLayoutConstraint: NSLayoutConstraint!
@ -206,6 +206,19 @@ extension StatusTableViewCell {
}
}
// MARK: - MosaicImageViewContainerPresentable
extension StatusTableViewCell: MosaicImageViewContainerPresentable {
var mosaicImageViewContainer: MosaicImageViewContainer {
return statusView.statusMosaicImageViewContainer
}
var isRevealing: Bool {
return statusView.isRevealing
}
}
// MARK: - UITableViewDelegate
extension StatusTableViewCell: UITableViewDelegate {

View File

@ -48,29 +48,35 @@ struct MosaicMeta {
func blurhashImagePublisher() -> AnyPublisher<UIImage?, Never> {
return Future { promise in
guard let blurhash = blurhash else {
promise(.success(nil))
return
}
let imageSize: CGSize = {
let aspectRadio = size.width / size.height
if size.width > size.height {
let width: CGFloat = MosaicMeta.edgeMaxLength
let height = width / aspectRadio
return CGSize(width: width, height: height)
} else {
let height: CGFloat = MosaicMeta.edgeMaxLength
let width = height * aspectRadio
return CGSize(width: width, height: height)
}
}()
workingQueue.async {
let image = UIImage(blurHash: blurhash, size: imageSize)
let image = self.blurhashImage()
promise(.success(image))
}
}
.eraseToAnyPublisher()
}
func blurhashImage() -> UIImage? {
guard let blurhash = blurhash else {
return nil
}
let imageSize: CGSize = {
let aspectRadio = size.width / size.height
if size.width > size.height {
let width: CGFloat = MosaicMeta.edgeMaxLength
let height = width / aspectRadio
return CGSize(width: width, height: height)
} else {
let height: CGFloat = MosaicMeta.edgeMaxLength
let width = height * aspectRadio
return CGSize(width: width, height: height)
}
}()
let image = UIImage(blurHash: blurhash, size: imageSize)
return image
}
}

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@ -11,7 +11,7 @@ import Combine
import CoreData
import AVKit
final class ThreadViewController: UIViewController, NeedsDependency {
final class ThreadViewController: UIViewController, NeedsDependency, MediaPreviewableViewController {
weak var context: AppContext! { willSet { precondition(!isViewLoaded) } }
weak var coordinator: SceneCoordinator! { willSet { precondition(!isViewLoaded) } }
@ -19,6 +19,8 @@ final class ThreadViewController: UIViewController, NeedsDependency {
var disposeBag = Set<AnyCancellable>()
var viewModel: ThreadViewModel!
let mediaPreviewTransitionController = MediaPreviewTransitionController()
let titleView = DoubleTitleLabelNavigationBarTitleView()
let replyBarButtonItem = AdaptiveUserInterfaceStyleBarButtonItem(
@ -149,6 +151,22 @@ extension ThreadViewController: UITableViewDelegate {
}
}
func tableView(_ tableView: UITableView, contextMenuConfigurationForRowAt indexPath: IndexPath, point: CGPoint) -> UIContextMenuConfiguration? {
return aspectTableView(tableView, contextMenuConfigurationForRowAt: indexPath, point: point)
}
func tableView(_ tableView: UITableView, previewForHighlightingContextMenuWithConfiguration configuration: UIContextMenuConfiguration) -> UITargetedPreview? {
return aspectTableView(tableView, previewForHighlightingContextMenuWithConfiguration: configuration)
}
func tableView(_ tableView: UITableView, previewForDismissingContextMenuWithConfiguration configuration: UIContextMenuConfiguration) -> UITargetedPreview? {
return aspectTableView(tableView, previewForDismissingContextMenuWithConfiguration: configuration)
}
func tableView(_ tableView: UITableView, willPerformPreviewActionForMenuWith configuration: UIContextMenuConfiguration, animator: UIContextMenuInteractionCommitAnimating) {
aspectTableView(tableView, willPerformPreviewActionForMenuWith: configuration, animator: animator)
}
}
// MARK: - UITableViewDataSourcePrefetching

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@ -0,0 +1,391 @@
//
// MediaHostToMediaPreviewViewControllerAnimatedTransitioning.swift
// Mastodon
//
// Created by MainasuK Cirno on 2021-4-28.
//
import os.log
import UIKit
import func AVFoundation.AVMakeRect
final class MediaHostToMediaPreviewViewControllerAnimatedTransitioning: ViewControllerAnimatedTransitioning {
let transitionItem: MediaPreviewTransitionItem
let panGestureRecognizer: UIPanGestureRecognizer
private var isTransitionContextFinish = false
private var popInteractiveTransitionAnimator = MediaHostToMediaPreviewViewControllerAnimatedTransitioning.animator(initialVelocity: .zero)
private var itemInteractiveTransitionAnimator = MediaHostToMediaPreviewViewControllerAnimatedTransitioning.animator(initialVelocity: .zero)
init(operation: UINavigationController.Operation, transitionItem: MediaPreviewTransitionItem, panGestureRecognizer: UIPanGestureRecognizer) {
self.transitionItem = transitionItem
self.panGestureRecognizer = panGestureRecognizer
super.init(operation: operation)
}
class func animator(initialVelocity: CGVector = .zero) -> UIViewPropertyAnimator {
let timingParameters = UISpringTimingParameters(mass: 4.0, stiffness: 1300, damping: 180, initialVelocity: initialVelocity)
return UIViewPropertyAnimator(duration: 0.5, timingParameters: timingParameters)
}
}
// MARK: - UIViewControllerAnimatedTransitioning
extension MediaHostToMediaPreviewViewControllerAnimatedTransitioning {
override func animateTransition(using transitionContext: UIViewControllerContextTransitioning) {
super.animateTransition(using: transitionContext)
switch operation {
case .push: pushTransition(using: transitionContext).startAnimation()
case .pop: popTransition(using: transitionContext).startAnimation()
default: return
}
}
private func pushTransition(using transitionContext: UIViewControllerContextTransitioning, curve: UIView.AnimationCurve = .easeInOut) -> UIViewPropertyAnimator {
guard let toVC = transitionContext.viewController(forKey: .to) as? MediaPreviewViewController,
let toView = transitionContext.view(forKey: .to) else {
fatalError()
}
let toViewEndFrame = transitionContext.finalFrame(for: toVC)
toView.frame = toViewEndFrame
toView.alpha = 0
transitionContext.containerView.addSubview(toView)
// set to image hidden
toVC.pagingViewConttroller.view.alpha = 0
// set from image hidden. update hidden when paging. seealso: `MediaPreviewViewController`
transitionItem.source.updateAppearance(position: .start, index: toVC.viewModel.currentPage.value)
// Set transition image view
assert(transitionItem.initialFrame != nil)
let initialFrame = transitionItem.initialFrame ?? toViewEndFrame
let transitionTargetFrame: CGRect = {
let aspectRatio = transitionItem.aspectRatio ?? CGSize(width: initialFrame.width, height: initialFrame.height)
return AVMakeRect(aspectRatio: aspectRatio, insideRect: toView.bounds)
}()
let transitionImageView: UIImageView = {
let imageView = UIImageView(frame: transitionContext.containerView.convert(initialFrame, from: nil))
imageView.clipsToBounds = true
imageView.contentMode = .scaleAspectFill
imageView.isUserInteractionEnabled = false
imageView.image = transitionItem.image
return imageView
}()
transitionItem.targetFrame = transitionTargetFrame
transitionItem.imageView = transitionImageView
transitionContext.containerView.addSubview(transitionImageView)
let animator = MediaHostToMediaPreviewViewControllerAnimatedTransitioning.animator(initialVelocity: .zero)
animator.addAnimations {
transitionImageView.frame = transitionTargetFrame
toView.alpha = 1
}
animator.addCompletion { position in
toVC.pagingViewConttroller.view.alpha = 1
transitionImageView.removeFromSuperview()
transitionContext.completeTransition(position == .end)
}
return animator
}
private func popTransition(using transitionContext: UIViewControllerContextTransitioning, curve: UIView.AnimationCurve = .easeInOut) -> UIViewPropertyAnimator {
guard let fromVC = transitionContext.viewController(forKey: .from) as? MediaPreviewViewController,
let fromView = transitionContext.view(forKey: .from),
let mediaPreviewImageViewController = fromVC.pagingViewConttroller.currentViewController as? MediaPreviewImageViewController,
let index = fromVC.pagingViewConttroller.currentIndex else {
fatalError()
}
// assert view hierarchy not change
let toVC = transitionItem.previewableViewController
let targetFrame = toVC.sourceFrame(transitionItem: transitionItem, index: index)
let imageView = mediaPreviewImageViewController.previewImageView.imageView
let _snapshot: UIView? = {
transitionItem.snapshotRaw = imageView
let snapshot = imageView.snapshotView(afterScreenUpdates: false)
snapshot?.clipsToBounds = true
snapshot?.contentMode = .scaleAspectFill
return snapshot
}()
guard let snapshot = _snapshot else {
transitionContext.completeTransition(false)
fatalError()
}
mediaPreviewImageViewController.view.insertSubview(snapshot, aboveSubview: mediaPreviewImageViewController.previewImageView)
snapshot.center = transitionContext.containerView.center
transitionItem.imageView = imageView
transitionItem.snapshotTransitioning = snapshot
transitionItem.initialFrame = snapshot.frame
transitionItem.targetFrame = targetFrame
// disable interaction
fromVC.pagingViewConttroller.isUserInteractionEnabled = false
let animator = popInteractiveTransitionAnimator
self.transitionItem.snapshotRaw?.alpha = 0.0
animator.addAnimations {
if let targetFrame = targetFrame {
self.transitionItem.snapshotTransitioning?.frame = targetFrame
} else {
fromView.alpha = 0
}
self.transitionItem.sourceImageViewCornerRadius.flatMap { self.transitionItem.snapshotTransitioning?.layer.cornerRadius = $0 }
fromVC.closeButtonBackground.alpha = 0
fromVC.visualEffectView.effect = nil
}
animator.addCompletion { position in
self.transitionItem.snapshotTransitioning?.removeFromSuperview()
self.transitionItem.source.updateAppearance(position: position, index: nil)
transitionContext.completeTransition(position == .end)
}
return animator
}
}
// MARK: - UIViewControllerInteractiveTransitioning
extension MediaHostToMediaPreviewViewControllerAnimatedTransitioning {
override func startInteractiveTransition(_ transitionContext: UIViewControllerContextTransitioning) {
super.startInteractiveTransition(transitionContext)
switch operation {
case .pop:
// Note: change item.imageView transform via pan gesture
panGestureRecognizer.addTarget(self, action: #selector(MediaHostToMediaPreviewViewControllerAnimatedTransitioning.updatePanGestureInteractive(_:)))
popInteractiveTransition(using: transitionContext)
default:
assertionFailure()
return
}
}
private func popInteractiveTransition(using transitionContext: UIViewControllerContextTransitioning) {
guard let fromVC = transitionContext.viewController(forKey: .from) as? MediaPreviewViewController,
let fromView = transitionContext.view(forKey: .from),
let mediaPreviewImageViewController = fromVC.pagingViewConttroller.currentViewController as? MediaPreviewImageViewController,
let index = fromVC.pagingViewConttroller.currentIndex else {
fatalError()
}
// assert view hierarchy not change
let toVC = transitionItem.previewableViewController
let targetFrame = toVC.sourceFrame(transitionItem: transitionItem, index: index)
let imageView = mediaPreviewImageViewController.previewImageView.imageView
let _snapshot: UIView? = {
transitionItem.snapshotRaw = imageView
let snapshot = imageView.snapshotView(afterScreenUpdates: false)
snapshot?.clipsToBounds = true
snapshot?.contentMode = .scaleAspectFill
return snapshot
}()
guard let snapshot = _snapshot else {
transitionContext.completeTransition(false)
return
}
mediaPreviewImageViewController.view.insertSubview(snapshot, aboveSubview: mediaPreviewImageViewController.previewImageView)
snapshot.center = transitionContext.containerView.center
transitionItem.imageView = imageView
transitionItem.snapshotTransitioning = snapshot
transitionItem.initialFrame = snapshot.frame
transitionItem.targetFrame = targetFrame ?? snapshot.frame
// disable interaction
fromVC.pagingViewConttroller.isUserInteractionEnabled = false
let animator = popInteractiveTransitionAnimator
let blurEffect = fromVC.visualEffectView.effect
self.transitionItem.snapshotRaw?.alpha = 0.0
animator.addAnimations {
switch self.transitionItem.source {
case .profileBanner:
self.transitionItem.snapshotTransitioning?.alpha = 0.4
default:
break
}
fromVC.closeButtonBackground.alpha = 0
fromVC.visualEffectView.effect = nil
self.transitionItem.sourceImageViewCornerRadius.flatMap { self.transitionItem.snapshotTransitioning?.layer.cornerRadius = $0 }
}
animator.addCompletion { position in
fromVC.pagingViewConttroller.isUserInteractionEnabled = true
fromVC.closeButtonBackground.alpha = position == .end ? 0 : 1
self.transitionItem.imageView?.isHidden = position == .end
self.transitionItem.snapshotRaw?.alpha = position == .start ? 1.0 : 0.0
self.transitionItem.snapshotTransitioning?.removeFromSuperview()
if position == .end {
// reset appearance
self.transitionItem.source.updateAppearance(position: position, index: nil)
}
fromVC.visualEffectView.effect = position == .end ? nil : blurEffect
transitionContext.completeTransition(position == .end)
}
}
}
extension MediaHostToMediaPreviewViewControllerAnimatedTransitioning {
@objc func updatePanGestureInteractive(_ sender: UIPanGestureRecognizer) {
guard !isTransitionContextFinish else { return } // do not accept transition abort
switch sender.state {
case .began, .changed:
let translation = sender.translation(in: transitionContext.containerView)
let percent = popInteractiveTransitionAnimator.fractionComplete + progressStep(for: translation)
popInteractiveTransitionAnimator.fractionComplete = percent
transitionContext.updateInteractiveTransition(percent)
updateTransitionItemPosition(of: translation)
// Reset translation to zero
sender.setTranslation(CGPoint.zero, in: transitionContext.containerView)
case .ended, .cancelled:
let targetPosition = completionPosition()
os_log(.info, log: .debug, "%{public}s[%{public}ld], %{public}s: target position: %s", ((#file as NSString).lastPathComponent), #line, #function, targetPosition == .end ? "end" : "start")
isTransitionContextFinish = true
animate(targetPosition)
targetPosition == .end ? transitionContext.finishInteractiveTransition() : transitionContext.cancelInteractiveTransition()
default:
return
}
}
private func convert(_ velocity: CGPoint, for item: MediaPreviewTransitionItem?) -> CGVector {
guard let currentFrame = item?.imageView?.frame, let targetFrame = item?.targetFrame else {
return CGVector.zero
}
let dx = abs(targetFrame.midX - currentFrame.midX)
let dy = abs(targetFrame.midY - currentFrame.midY)
guard dx > 0.0 && dy > 0.0 else {
return CGVector.zero
}
let range = CGFloat(35.0)
let clippedVx = clip(-range, range, velocity.x / dx)
let clippedVy = clip(-range, range, velocity.y / dy)
return CGVector(dx: clippedVx, dy: clippedVy)
}
private func completionPosition() -> UIViewAnimatingPosition {
let completionThreshold: CGFloat = 0.33
let flickMagnitude: CGFloat = 1200 // pts/sec
let velocity = panGestureRecognizer.velocity(in: transitionContext.containerView).vector
let isFlick = (velocity.magnitude > flickMagnitude)
let isFlickDown = isFlick && (velocity.dy > 0.0)
let isFlickUp = isFlick && (velocity.dy < 0.0)
if (operation == .push && isFlickUp) || (operation == .pop && isFlickDown) {
return .end
} else if (operation == .push && isFlickDown) || (operation == .pop && isFlickUp) {
return .start
} else if popInteractiveTransitionAnimator.fractionComplete > completionThreshold {
return .end
} else {
return .start
}
}
// Create item animator and start it
func animate(_ toPosition: UIViewAnimatingPosition) {
// Create a property animator to animate each image's frame change
let gestureVelocity = panGestureRecognizer.velocity(in: transitionContext.containerView)
let velocity = convert(gestureVelocity, for: transitionItem)
let itemAnimator = MediaHostToMediaPreviewViewControllerAnimatedTransitioning.animator(initialVelocity: velocity)
itemAnimator.addAnimations {
if toPosition == .end {
switch self.transitionItem.source {
case .profileBanner where toPosition == .end:
// fade transition for banner
self.transitionItem.snapshotTransitioning?.alpha = 0
default:
if let targetFrame = self.transitionItem.targetFrame {
self.transitionItem.snapshotTransitioning?.frame = targetFrame
} else {
self.transitionItem.snapshotTransitioning?.alpha = 0
}
}
} else {
if let initialFrame = self.transitionItem.initialFrame {
self.transitionItem.snapshotTransitioning?.frame = initialFrame
} else {
self.transitionItem.snapshotTransitioning?.alpha = 1
}
}
}
// Start the property animator and keep track of it
self.itemInteractiveTransitionAnimator = itemAnimator
itemAnimator.startAnimation()
// Reverse the transition animator if we are returning to the start position
popInteractiveTransitionAnimator.isReversed = (toPosition == .start)
if popInteractiveTransitionAnimator.state == .inactive {
popInteractiveTransitionAnimator.startAnimation()
} else {
let durationFactor = CGFloat(itemAnimator.duration / popInteractiveTransitionAnimator.duration)
popInteractiveTransitionAnimator.continueAnimation(withTimingParameters: nil, durationFactor: durationFactor)
}
}
private func progressStep(for translation: CGPoint) -> CGFloat {
return (operation == .push ? -1.0 : 1.0) * translation.y / transitionContext.containerView.bounds.midY
}
private func updateTransitionItemPosition(of translation: CGPoint) {
let progress = progressStep(for: translation)
let initialSize = transitionItem.initialFrame!.size
guard initialSize != .zero else { return }
// assert(initialSize != .zero)
guard let snapshot = transitionItem.snapshotTransitioning,
let finalSize = transitionItem.targetFrame?.size else {
return
}
if snapshot.frame.size == .zero {
snapshot.frame.size = initialSize
}
let currentSize = snapshot.frame.size
let itemPercentComplete = clip(-0.05, 1.05, (currentSize.width - initialSize.width) / (finalSize.width - initialSize.width) + progress)
let itemWidth = lerp(initialSize.width, finalSize.width, itemPercentComplete)
let itemHeight = lerp(initialSize.height, finalSize.height, itemPercentComplete)
assert(currentSize.width != 0.0)
assert(currentSize.height != 0.0)
let scaleTransform = CGAffineTransform(scaleX: (itemWidth / currentSize.width), y: (itemHeight / currentSize.height))
let scaledOffset = transitionItem.touchOffset.apply(transform: scaleTransform)
snapshot.center = (snapshot.center + (translation + (transitionItem.touchOffset - scaledOffset))).point
snapshot.bounds = CGRect(origin: CGPoint.zero, size: CGSize(width: itemWidth, height: itemHeight))
transitionItem.touchOffset = scaledOffset
}
}

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@ -0,0 +1,125 @@
//
// MediaPreviewTransitionController.swift
// Mastodon
//
// Created by MainasuK Cirno on 2021-4-28.
//
import os.log
import UIKit
final class MediaPreviewTransitionController: NSObject {
weak var mediaPreviewViewController: MediaPreviewViewController?
var wantsInteractiveStart = false
private var panGestureRecognizer: UIPanGestureRecognizer = {
let gestureRecognizer = UIPanGestureRecognizer()
gestureRecognizer.maximumNumberOfTouches = 1
return gestureRecognizer
}()
private var dismissInteractiveTransitioning: MediaHostToMediaPreviewViewControllerAnimatedTransitioning?
override init() {
super.init()
panGestureRecognizer.delegate = self
panGestureRecognizer.addTarget(self, action: #selector(MediaPreviewTransitionController.panGestureRecognizerHandler(_:)))
}
}
extension MediaPreviewTransitionController {
@objc private func panGestureRecognizerHandler(_ sender: UIPanGestureRecognizer) {
guard dismissInteractiveTransitioning == nil else { return }
guard let mediaPreviewViewController = self.mediaPreviewViewController else { return }
wantsInteractiveStart = true
mediaPreviewViewController.dismiss(animated: true, completion: nil)
os_log(.info, log: .debug, "%{public}s[%{public}ld], %{public}s: start interactive dismiss", ((#file as NSString).lastPathComponent), #line, #function)
}
}
// MARK: - UIGestureRecognizerDelegate
extension MediaPreviewTransitionController: UIGestureRecognizerDelegate {
func gestureRecognizer(_ gestureRecognizer: UIGestureRecognizer, shouldRecognizeSimultaneouslyWith otherGestureRecognizer: UIGestureRecognizer) -> Bool {
if gestureRecognizer === panGestureRecognizer || otherGestureRecognizer === panGestureRecognizer {
// FIXME: should enable zoom up pan dismiss
return false
}
return true
}
func gestureRecognizerShouldBegin(_ gestureRecognizer: UIGestureRecognizer) -> Bool {
if gestureRecognizer === panGestureRecognizer {
guard let mediaPreviewViewController = self.mediaPreviewViewController else { return false }
return mediaPreviewViewController.isInteractiveDismissable()
}
return false
}
}
// MARK: - UIViewControllerTransitioningDelegate
extension MediaPreviewTransitionController: UIViewControllerTransitioningDelegate {
func animationController(forPresented presented: UIViewController, presenting: UIViewController, source: UIViewController) -> UIViewControllerAnimatedTransitioning? {
guard let mediaPreviewViewController = presented as? MediaPreviewViewController else {
assertionFailure()
return nil
}
self.mediaPreviewViewController = mediaPreviewViewController
self.mediaPreviewViewController?.view.addGestureRecognizer(panGestureRecognizer)
return MediaHostToMediaPreviewViewControllerAnimatedTransitioning(
operation: .push,
transitionItem: mediaPreviewViewController.viewModel.pushTransitionItem,
panGestureRecognizer: panGestureRecognizer
)
}
func interactionControllerForPresentation(using animator: UIViewControllerAnimatedTransitioning) -> UIViewControllerInteractiveTransitioning? {
// not support interactive present
return nil
}
func animationController(forDismissed dismissed: UIViewController) -> UIViewControllerAnimatedTransitioning? {
guard let mediaPreviewViewController = dismissed as? MediaPreviewViewController else {
assertionFailure()
return nil
}
return MediaHostToMediaPreviewViewControllerAnimatedTransitioning(
operation: .pop,
transitionItem: mediaPreviewViewController.viewModel.pushTransitionItem,
panGestureRecognizer: panGestureRecognizer
)
}
func interactionControllerForDismissal(using animator: UIViewControllerAnimatedTransitioning) -> UIViewControllerInteractiveTransitioning? {
guard let transitioning = animator as? MediaHostToMediaPreviewViewControllerAnimatedTransitioning,
transitioning.operation == .pop, wantsInteractiveStart else {
return nil
}
dismissInteractiveTransitioning = transitioning
transitioning.delegate = self
return transitioning
}
}
// MARK: - ViewControllerAnimatedTransitioningDelegate
extension MediaPreviewTransitionController: ViewControllerAnimatedTransitioningDelegate {
func animationEnded(_ transitionCompleted: Bool) {
os_log(.info, log: .debug, "%{public}s[%{public}ld], %{public}s: completed: %s", ((#file as NSString).lastPathComponent), #line, #function, transitionCompleted.description)
dismissInteractiveTransitioning = nil
wantsInteractiveStart = false
}
}

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@ -0,0 +1,64 @@
//
// MediaPreviewTransitionItem.swift
// Mastodon
//
// Created by MainasuK Cirno on 2021-4-28.
//
import UIKit
import CoreData
class MediaPreviewTransitionItem: Identifiable {
let id: UUID
let source: Source
var previewableViewController: MediaPreviewableViewController
// source
// value maybe invalid when preview paging
var image: UIImage?
var aspectRatio: CGSize?
var initialFrame: CGRect? = nil
var sourceImageView: UIImageView?
var sourceImageViewCornerRadius: CGFloat?
// target
var targetFrame: CGRect? = nil
// transitioning
var imageView: UIImageView?
var snapshotRaw: UIView?
var snapshotTransitioning: UIView?
var touchOffset: CGVector = CGVector.zero
init(id: UUID = UUID(), source: Source, previewableViewController: MediaPreviewableViewController) {
self.id = id
self.source = source
self.previewableViewController = previewableViewController
}
}
extension MediaPreviewTransitionItem {
enum Source {
case mosaic(MosaicImageViewContainer)
case profileAvatar(ProfileHeaderView)
case profileBanner(ProfileHeaderView)
func updateAppearance(position: UIViewAnimatingPosition, index: Int?) {
let alpha: CGFloat = position == .end ? 1 : 0
switch self {
case .mosaic(let mosaicImageViewContainer):
if let index = index {
mosaicImageViewContainer.setImageView(alpha: 0, index: index)
} else {
mosaicImageViewContainer.setImageViews(alpha: alpha)
}
case .profileAvatar(let profileHeaderView):
profileHeaderView.avatarImageView.alpha = alpha
case .profileBanner:
break // keep source
}
}
}
}

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@ -0,0 +1,28 @@
//
// MediaPreviewableViewController.swift
// Mastodon
//
// Created by MainasuK Cirno on 2021-4-28.
//
import UIKit
protocol MediaPreviewableViewController: AnyObject {
var mediaPreviewTransitionController: MediaPreviewTransitionController { get }
func sourceFrame(transitionItem: MediaPreviewTransitionItem, index: Int) -> CGRect?
}
extension MediaPreviewableViewController {
func sourceFrame(transitionItem: MediaPreviewTransitionItem, index: Int) -> CGRect? {
switch transitionItem.source {
case .mosaic(let mosaicImageViewContainer):
guard index < mosaicImageViewContainer.imageViews.count else { return nil }
let imageView = mosaicImageViewContainer.imageViews[index]
return imageView.superview!.convert(imageView.frame, to: nil)
case .profileAvatar(let profileHeaderView):
return profileHeaderView.avatarImageView.superview!.convert(profileHeaderView.avatarImageView.frame, to: nil)
case .profileBanner:
return nil // fallback to snapshot.frame
}
}
}

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@ -0,0 +1,12 @@
//
// MediaPreviewingViewController.swift
// Mastodon
//
// Created by MainasuK Cirno on 2021-4-28.
//
import Foundation
protocol MediaPreviewingViewController: AnyObject {
func isInteractiveDismissable() -> Bool
}

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@ -0,0 +1,65 @@
//
// ViewControllerAnimatedTransitioning.swift
// Mastodon
//
// Created by MainasuK Cirno on 2021-4-28.
//
import os.log
import UIKit
protocol ViewControllerAnimatedTransitioningDelegate: AnyObject {
var wantsInteractiveStart: Bool { get }
func animationEnded(_ transitionCompleted: Bool)
}
class ViewControllerAnimatedTransitioning: NSObject {
let operation: UINavigationController.Operation
var transitionContext: UIViewControllerContextTransitioning!
var isInteractive: Bool { return transitionContext.isInteractive }
weak var delegate: ViewControllerAnimatedTransitioningDelegate?
init(operation: UINavigationController.Operation) {
assert(operation != .none)
self.operation = operation
super.init()
}
deinit {
os_log("%{public}s[%{public}ld], %{public}s", ((#file as NSString).lastPathComponent), #line, #function)
}
}
// MARK: - UIViewControllerAnimatedTransitioning
extension ViewControllerAnimatedTransitioning: UIViewControllerAnimatedTransitioning {
func transitionDuration(using transitionContext: UIViewControllerContextTransitioning?) -> TimeInterval {
return 0.3
}
func animateTransition(using transitionContext: UIViewControllerContextTransitioning) {
self.transitionContext = transitionContext
}
func animationEnded(_ transitionCompleted: Bool) {
delegate?.animationEnded(transitionCompleted)
}
}
// MARK: - UIViewControllerInteractiveTransitioning
extension ViewControllerAnimatedTransitioning: UIViewControllerInteractiveTransitioning {
func startInteractiveTransition(_ transitionContext: UIViewControllerContextTransitioning) {
self.transitionContext = transitionContext
}
var wantsInteractiveStart: Bool {
return delegate?.wantsInteractiveStart ?? false
}
}

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@ -0,0 +1,83 @@
//
// PhotoLibraryService.swift
// Mastodon
//
// Created by MainasuK Cirno on 2021-4-29.
//
import os.log
import UIKit
import Combine
import Photos
import AlamofireImage
final class PhotoLibraryService: NSObject {
}
extension PhotoLibraryService {
enum PhotoLibraryError: Error {
case noPermission
}
}
extension PhotoLibraryService {
func saveImage(url: URL) -> AnyPublisher<UIImage, Error> {
let impactFeedbackGenerator = UIImpactFeedbackGenerator(style: .light)
let notificationFeedbackGenerator = UINotificationFeedbackGenerator()
return Future<UIImage, Error> { promise in
guard PHPhotoLibrary.authorizationStatus(for: .addOnly) != .denied else {
promise(.failure(PhotoLibraryError.noPermission))
return
}
ImageDownloader.default.download(URLRequest(url: url), completion: { [weak self] response in
guard let self = self else { return }
switch response.result {
case .failure(let error):
os_log(.info, log: .debug, "%{public}s[%{public}ld], %{public}s: download image %s fail: %s", ((#file as NSString).lastPathComponent), #line, #function, url.debugDescription, error.localizedDescription)
promise(.failure(error))
case .success(let image):
os_log(.info, log: .debug, "%{public}s[%{public}ld], %{public}s: download image %s success", ((#file as NSString).lastPathComponent), #line, #function, url.debugDescription)
self.save(image: image)
promise(.success(image))
}
})
}
.handleEvents(receiveSubscription: { _ in
impactFeedbackGenerator.impactOccurred()
}, receiveCompletion: { completion in
switch completion {
case .failure:
notificationFeedbackGenerator.notificationOccurred(.error)
case .finished:
notificationFeedbackGenerator.notificationOccurred(.success)
}
})
.eraseToAnyPublisher()
}
func save(image: UIImage, withNotificationFeedback: Bool = false) {
UIImageWriteToSavedPhotosAlbum(
image,
self,
#selector(PhotoLibraryService.image(_:didFinishSavingWithError:contextInfo:)),
nil
)
// assert no error
if withNotificationFeedback {
let notificationFeedbackGenerator = UINotificationFeedbackGenerator()
notificationFeedbackGenerator.notificationOccurred(.success)
}
}
@objc private func image(_ image: UIImage, didFinishSavingWithError error: Error?, contextInfo: UnsafeRawPointer) {
// TODO: notify banner
}
}

View File

@ -171,3 +171,19 @@ final class SettingService {
}
}
extension SettingService {
static func openSettingsAlertController(title: String, message: String) -> UIAlertController {
let alertController = UIAlertController(title: title, message: message, preferredStyle: .alert)
let settingAction = UIAlertAction(title: L10n.Common.Controls.Actions.settings, style: .default) { _ in
guard let url = URL(string: UIApplication.openSettingsURLString) else { return }
UIApplication.shared.open(url, options: [:], completionHandler: nil)
}
alertController.addAction(settingAction)
let cancelAction = UIAlertAction(title: L10n.Common.Controls.Actions.cancel, style: .cancel, handler: nil)
alertController.addAction(cancelAction)
return alertController
}
}

View File

@ -30,7 +30,8 @@ class AppContext: ObservableObject {
let statusPublishService = StatusPublishService()
let notificationService: NotificationService
let settingService: SettingService
let photoLibraryService = PhotoLibraryService()
let documentStore: DocumentStore
private var documentStoreSubscription: AnyCancellable!

View File

@ -0,0 +1,50 @@
//
// CustomScheduler.swift
// Mastodon
//
// Created by MainasuK Cirno on 2021-4-30.
//
import Foundation
import Combine
// Ref: https://stackoverflow.com/a/59069315/3797903
struct CustomScheduler: Scheduler {
var runLoop: RunLoop
var modes: [RunLoop.Mode] = [.default]
func schedule(after date: RunLoop.SchedulerTimeType, interval: RunLoop.SchedulerTimeType.Stride,
tolerance: RunLoop.SchedulerTimeType.Stride, options: Never?,
_ action: @escaping () -> Void) -> Cancellable {
let timer = Timer(fire: date.date, interval: interval.magnitude, repeats: true) { timer in
action()
}
for mode in modes {
runLoop.add(timer, forMode: mode)
}
return AnyCancellable {
timer.invalidate()
}
}
func schedule(after date: RunLoop.SchedulerTimeType, tolerance: RunLoop.SchedulerTimeType.Stride,
options: Never?, _ action: @escaping () -> Void) {
let timer = Timer(fire: date.date, interval: 0, repeats: false) { timer in
timer.invalidate()
action()
}
for mode in modes {
runLoop.add(timer, forMode: mode)
}
}
func schedule(options: Never?, _ action: @escaping () -> Void) {
runLoop.perform(inModes: modes, block: action)
}
var now: RunLoop.SchedulerTimeType { RunLoop.SchedulerTimeType(Date()) }
var minimumTolerance: RunLoop.SchedulerTimeType.Stride { RunLoop.SchedulerTimeType.Stride(0.1) }
typealias SchedulerTimeType = RunLoop.SchedulerTimeType
typealias SchedulerOptions = Never
}

View File

@ -0,0 +1,66 @@
/*
Copyright (C) 2016 Apple Inc. All Rights Reserved.
See LICENSE.txt for this samples licensing information
Abstract:
Convenience math operators
*/
import QuartzCore
func clip<T : Comparable>(_ x0: T, _ x1: T, _ v: T) -> T {
return max(x0, min(x1, v))
}
func lerp<T : FloatingPoint>(_ v0: T, _ v1: T, _ t: T) -> T {
return v0 + (v1 - v0) * t
}
func -(lhs: CGPoint, rhs: CGPoint) -> CGVector {
return CGVector(dx: lhs.x - rhs.x, dy: lhs.y - rhs.y)
}
func -(lhs: CGPoint, rhs: CGVector) -> CGPoint {
return CGPoint(x: lhs.x - rhs.dx, y: lhs.y - rhs.dy)
}
func -(lhs: CGVector, rhs: CGVector) -> CGVector {
return CGVector(dx: lhs.dx - rhs.dx, dy: lhs.dy - rhs.dy)
}
func +(lhs: CGPoint, rhs: CGPoint) -> CGVector {
return CGVector(dx: lhs.x + rhs.x, dy: lhs.y + rhs.y)
}
func +(lhs: CGPoint, rhs: CGVector) -> CGPoint {
return CGPoint(x: lhs.x + rhs.dx, y: lhs.y + rhs.dy)
}
func +(lhs: CGVector, rhs: CGVector) -> CGVector {
return CGVector(dx: lhs.dx + rhs.dx, dy: lhs.dy + rhs.dy)
}
func *(left: CGVector, right:CGFloat) -> CGVector {
return CGVector(dx: left.dx * right, dy: left.dy * right)
}
extension CGPoint {
var vector: CGVector {
return CGVector(dx: x, dy: y)
}
}
extension CGVector {
var magnitude: CGFloat {
return sqrt(dx*dx + dy*dy)
}
var point: CGPoint {
return CGPoint(x: dx, y: dy)
}
func apply(transform t: CGAffineTransform) -> CGVector {
return point.applying(t).vector
}
}