mirror of
https://github.com/Dimillian/IceCubesApp.git
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refactor MediaUIView state and logic (#1651)
This commit is contained in:
Thai D. V
GitHub
parent
cb1f3dc548
commit
20ecc49e31
1 changed files with 194 additions and 119 deletions
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@ -1,78 +1,64 @@
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import Foundation
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import NukeUI
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import Nuke
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import SwiftUI
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import Models
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import QuickLook
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public struct MediaUIView: View, @unchecked Sendable {
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@Environment(\.dismiss) private var dismiss
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public let selectedAttachment: MediaAttachment
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public let attachments: [MediaAttachment]
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@State private var scrollToId: String?
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@State private var altTextDisplayed: String?
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@State private var isAltAlertDisplayed: Bool = false
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@State private var quickLookURL: URL?
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@State private var isLoadingQuickLook = false
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@State private var isSavingPhoto: Bool = false
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@State private var didSavePhoto: Bool = false
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public init(selectedAttachment: MediaAttachment, attachments: [MediaAttachment]) {
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self.selectedAttachment = selectedAttachment
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self.attachments = attachments
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}
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private let data: [DisplayData]
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private let initialItem: DisplayData?
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@State private var scrolledItem: DisplayData?
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public var body: some View {
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NavigationStack {
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ScrollView(.horizontal, showsIndicators: false) {
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LazyHStack {
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ForEach(attachments) { attachment in
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if let url = attachment.url {
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switch attachment.supportedType {
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case .image:
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MediaUIAttachmentImageView(url: url)
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.containerRelativeFrame(.horizontal, count: 1, span: 1, spacing: 0)
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.id(attachment.id)
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case .video, .gifv, .audio:
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MediaUIAttachmentVideoView(viewModel: .init(url: url, forceAutoPlay: true))
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.containerRelativeFrame(.horizontal, count: 1, span: 1, spacing: 0)
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.containerRelativeFrame(.vertical, count: 1, span: 1, spacing: 0)
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.id(attachment.id)
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case .none:
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EmptyView()
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}
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}
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ForEach(data) {
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DisplayView(data: $0)
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.containerRelativeFrame([.horizontal, .vertical])
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.id($0)
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}
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}
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.scrollTargetLayout()
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}
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.scrollTargetBehavior(.viewAligned)
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.scrollPosition(id: $scrollToId)
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.scrollPosition(id: $scrolledItem)
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.toolbar {
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toolbarView
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if let item = scrolledItem {
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MediaToolBar(data: item)
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}
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}
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.alert("status.editor.media.image-description",
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isPresented: $isAltAlertDisplayed)
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{
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Button("alert.button.ok", action: {})
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} message: {
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Text(altTextDisplayed ?? "")
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}
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.quickLookPreview($quickLookURL)
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.onAppear {
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DispatchQueue.main.asyncAfter(deadline: .now() + 0.15) {
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scrollToId = selectedAttachment.id
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scrolledItem = initialItem
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}
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}
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}
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}
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@ToolbarContentBuilder
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private var toolbarView: some ToolbarContent {
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#if !targetEnvironment(macCatalyst)
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public init(selectedAttachment: MediaAttachment, attachments: [MediaAttachment]) {
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self.data = attachments.compactMap { DisplayData(from: $0) }
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self.initialItem = DisplayData(from: selectedAttachment)
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}
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}
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private struct MediaToolBar: ToolbarContent {
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let data: DisplayData
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var body: some ToolbarContent {
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#if !targetEnvironment(macCatalyst)
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DismissToolbarItem()
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#endif
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QuickLookToolbarItem(itemUrl: data.url)
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AltTextToolbarItem(alt: data.description)
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SavePhotoToolbarItem(url: data.url, type: data.type)
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ShareToolbarItem(url: data.url, type: data.type)
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}
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}
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private struct DismissToolbarItem: ToolbarContent {
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@Environment(\.dismiss) private var dismiss
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var body: some ToolbarContent {
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ToolbarItem(placement: .topBarLeading) {
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Button {
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dismiss()
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@ -80,87 +66,74 @@ public struct MediaUIView: View, @unchecked Sendable {
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Image(systemName: "xmark.circle")
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}
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}
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#endif
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}
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}
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private struct AltTextToolbarItem: ToolbarContent {
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let alt: String?
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@State private var isAlertDisplayed = false
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var body: some ToolbarContent {
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ToolbarItem(placement: .topBarTrailing) {
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if let url = attachments.first(where: { $0.id == scrollToId})?.url {
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if let alt = alt {
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Button {
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Task {
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isLoadingQuickLook = true
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quickLookURL = await localPathFor(url: url)
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isLoadingQuickLook = false
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}
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} label: {
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if isLoadingQuickLook {
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ProgressView()
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} else {
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Image(systemName: "info.circle")
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}
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}
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}
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}
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ToolbarItem(placement: .topBarTrailing) {
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if let alt = attachments.first(where: { $0.id == scrollToId})?.description {
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Button {
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altTextDisplayed = alt
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isAltAlertDisplayed = true
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isAlertDisplayed = true
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} label: {
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Text("status.image.alt-text.abbreviation")
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}
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.alert("status.editor.media.image-description",
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isPresented: $isAlertDisplayed
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) {
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Button("alert.button.ok", action: {})
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} message: {
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Text(alt)
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}
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} else {
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EmptyView()
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}
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}
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}
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}
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private struct SavePhotoToolbarItem: ToolbarContent, @unchecked Sendable {
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let url: URL
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let type: DisplayType
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@State private var state = SavingState.unsaved
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var body: some ToolbarContent {
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ToolbarItem(placement: .topBarTrailing) {
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if let attachment = attachments.first(where: { $0.id == scrollToId}),
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let url = attachment.url,
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attachment.supportedType == .image {
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if type == .image {
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Button {
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Task {
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isSavingPhoto = true
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state = .saving
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if await saveImage(url: url) {
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withAnimation {
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isSavingPhoto = false
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didSavePhoto = true
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state = .saved
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DispatchQueue.main.asyncAfter(deadline: .now() + 1.0) {
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didSavePhoto = false
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state = .unsaved
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}
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}
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} else {
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isSavingPhoto = false
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}
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}
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} label: {
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if isSavingPhoto {
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ProgressView()
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} else if didSavePhoto {
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Image(systemName: "checkmark.circle.fill")
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} else {
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Image(systemName: "arrow.down.circle")
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switch state {
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case .unsaved: Image(systemName: "arrow.down.circle")
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case .saving : ProgressView()
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case .saved : Image(systemName: "checkmark.circle.fill")
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}
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}
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}
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}
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ToolbarItem(placement: .topBarTrailing) {
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if let attachment = attachments.first(where: { $0.id == scrollToId}),
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let url = attachment.url {
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switch attachment.supportedType {
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case .image:
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let transferable = MediaUIImageTransferable(url: url)
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ShareLink(item: transferable, preview: .init("status.media.contextmenu.share",
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image: transferable))
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default:
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ShareLink(item: url)
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}
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} else {
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EmptyView()
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}
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}
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}
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private var quickLookDir: URL {
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try! FileManager.default.url(for: .cachesDirectory,
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in: .userDomainMask,
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appropriateFor: nil,
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create: false)
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.appending(component: "quicklook")
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private enum SavingState {
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case unsaved
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case saving
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case saved
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}
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private func imageData(_ url: URL) async -> Data? {
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var data = ImagePipeline.shared.cache.cachedData(for: .init(url: url))
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if data == nil {
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@ -168,16 +141,7 @@ public struct MediaUIView: View, @unchecked Sendable {
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}
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return data
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}
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private func localPathFor(url: URL) async -> URL {
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try? FileManager.default.removeItem(at: quickLookDir)
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try? FileManager.default.createDirectory(at: quickLookDir, withIntermediateDirectories: true)
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let path = quickLookDir.appendingPathComponent(url.lastPathComponent)
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let data = await imageData(url)
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try? data?.write(to: path)
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return path
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}
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private func uiimageFor(url: URL) async throws -> UIImage? {
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let data = await imageData(url)
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if let data {
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@ -185,7 +149,7 @@ public struct MediaUIView: View, @unchecked Sendable {
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}
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return nil
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}
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private func saveImage(url: URL) async -> Bool {
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if let image = try? await uiimageFor(url: url) {
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UIImageWriteToSavedPhotosAlbum(image, nil, nil, nil)
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@ -194,3 +158,114 @@ public struct MediaUIView: View, @unchecked Sendable {
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return false
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}
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}
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private struct QuickLookToolbarItem: ToolbarContent, @unchecked Sendable {
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let itemUrl: URL
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@State private var localPath: URL?
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@State private var isLoading = false
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var body: some ToolbarContent {
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ToolbarItem(placement: .topBarTrailing) {
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Button {
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Task {
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isLoading = true
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localPath = await localPathFor(url: itemUrl)
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isLoading = false
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}
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} label: {
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if isLoading {
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ProgressView()
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} else {
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Image(systemName: "info.circle")
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}
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}
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.quickLookPreview($localPath)
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}
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}
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private func imageData(_ url: URL) async -> Data? {
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var data = ImagePipeline.shared.cache.cachedData(for: .init(url: url))
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if data == nil {
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data = try? await URLSession.shared.data(from: url).0
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}
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return data
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}
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private func localPathFor(url: URL) async -> URL {
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try? FileManager.default.removeItem(at: quickLookDir)
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try? FileManager.default.createDirectory(at: quickLookDir, withIntermediateDirectories: true)
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let path = quickLookDir.appendingPathComponent(url.lastPathComponent)
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let data = await imageData(url)
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try? data?.write(to: path)
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return path
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}
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private var quickLookDir: URL {
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try! FileManager.default.url(for: .cachesDirectory,
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in: .userDomainMask,
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appropriateFor: nil,
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create: false)
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.appending(component: "quicklook")
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}
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}
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private struct ShareToolbarItem: ToolbarContent, @unchecked Sendable {
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let url: URL
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let type: DisplayType
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var body: some ToolbarContent {
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ToolbarItem(placement: .topBarTrailing) {
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if type == .image {
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let transferable = MediaUIImageTransferable(url: url)
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ShareLink(item: transferable, preview: .init("status.media.contextmenu.share",
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image: transferable))
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} else {
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ShareLink(item: url)
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}
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}
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}
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}
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private struct DisplayData: Identifiable, Hashable {
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let id: String
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let url: URL
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let description: String?
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let type: DisplayType
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init?(from attachment: MediaAttachment) {
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guard let url = attachment.url else { return nil }
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guard let type = attachment.supportedType else { return nil }
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self.id = attachment.id
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self.url = url
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self.description = attachment.description
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self.type = DisplayType(from: type)
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}
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}
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private enum DisplayType {
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case image
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case av
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init(from attachmentType: MediaAttachment.SupportedType) {
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switch attachmentType {
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case .image:
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self = .image
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case .video, .gifv, .audio:
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self = .av
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}
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}
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}
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private struct DisplayView: View {
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let data: DisplayData
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var body: some View {
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switch data.type {
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case .image:
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MediaUIAttachmentImageView(url: data.url)
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case .av:
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MediaUIAttachmentVideoView(viewModel: .init(url: data.url, forceAutoPlay: true))
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}
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}
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}
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