Revert "Switch to using LazyVStack for the Timeline"
This reverts commit 9878ca4b17
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9878ca4b17
commit
6b08b1e48b
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@ -17,6 +17,13 @@ struct TimelineItemView: View {
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var width: CGFloat
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var timelineItem: TimelineItem
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#if os(macOS)
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var verticalPadding: CGFloat = 10
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#endif
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#if os(iOS)
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var verticalPadding: CGFloat = 0
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#endif
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var body: some View {
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HStack(alignment: .top) {
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TimelineItemStatusView(selected: selected, status: timelineItem.status)
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@ -58,8 +65,7 @@ struct TimelineItemView: View {
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}
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}
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}
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.padding(.vertical, 10)
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.padding(.horizontal)
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.padding(.vertical, verticalPadding)
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.onAppear {
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articleIconImageLoader.loadImage(for: timelineItem.article)
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}
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@ -15,7 +15,6 @@ struct TimelineView: View {
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@EnvironmentObject private var timelineModel: TimelineModel
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@State private var navigate = false
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@State private var timelineItemFrames = [String: CGRect]()
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@ViewBuilder var body: some View {
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@ -41,31 +40,24 @@ struct TimelineView: View {
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.buttonStyle(PlainButtonStyle())
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.help(isReadFiltered ?? false ? "Show Read Articles" : "Filter Read Articles")
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}
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ScrollView {
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ScrollViewReader { scrollViewProxy in
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LazyVStack {
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ForEach(timelineItems.items) { timelineItem in
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let selected = timelineModel.selectedTimelineItemIDs.contains(timelineItem.article.articleID)
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TimelineItemView(selected: selected, width: geometryReaderProxy.size.width, timelineItem: timelineItem)
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.background(TimelineItemBackgroundView(selected: selected, timelineItem: timelineItem))
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.onTapGesture {
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timelineModel.selectedTimelineItemIDs = Set([timelineItem.id])
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}
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}
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.onPreferenceChange(TimelineItemFramePreferenceKey.self) { preferences in
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for pref in preferences {
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timelineItemFrames[pref.articleID] = pref.frame
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}
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}
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.onChange(of: timelineModel.selectedTimelineItemIDs) { selectedArticleIDs in
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let proxyFrame = geometryReaderProxy.frame(in: .global)
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for articleID in selectedArticleIDs {
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if let itemFrame = timelineItemFrames[articleID] {
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if itemFrame.minY < proxyFrame.minY + 3 || itemFrame.maxY > proxyFrame.maxY - 35 {
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withAnimation {
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scrollViewProxy.scrollTo(articleID, anchor: .center)
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}
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}
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ScrollViewReader { scrollViewProxy in
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List(timelineItems.items, selection: $timelineModel.selectedTimelineItemIDs) { timelineItem in
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let selected = timelineModel.selectedTimelineItemIDs.contains(timelineItem.article.articleID)
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TimelineItemView(selected: selected, width: geometryReaderProxy.size.width, timelineItem: timelineItem)
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.background(TimelineItemFramePreferenceView(timelineItem: timelineItem))
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}
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.onPreferenceChange(TimelineItemFramePreferenceKey.self) { preferences in
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for pref in preferences {
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timelineItemFrames[pref.articleID] = pref.frame
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}
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}
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.onChange(of: timelineModel.selectedTimelineItemIDs) { selectedArticleIDs in
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let proxyFrame = geometryReaderProxy.frame(in: .global)
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for articleID in selectedArticleIDs {
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if let itemFrame = timelineItemFrames[articleID] {
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if itemFrame.minY < proxyFrame.minY + 3 || itemFrame.maxY > proxyFrame.maxY - 35 {
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withAnimation {
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scrollViewProxy.scrollTo(articleID, anchor: .center)
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}
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}
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}
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@ -75,36 +67,30 @@ struct TimelineView: View {
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}
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.navigationTitle(Text(verbatim: timelineModel.nameForDisplay))
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#else
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ZStack {
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NavigationLink(destination: ArticleView(), isActive: $navigate) {
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EmptyView()
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ScrollViewReader { scrollViewProxy in
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List(timelineItems.items) { timelineItem in
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ZStack {
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let selected = timelineModel.selectedTimelineItemID == timelineItem.article.articleID
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TimelineItemView(selected: selected, width: geometryReaderProxy.size.width, timelineItem: timelineItem)
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.background(TimelineItemFramePreferenceView(timelineItem: timelineItem))
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NavigationLink(destination: ArticleContainerView(),
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tag: timelineItem.article.articleID,
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selection: $timelineModel.selectedTimelineItemID) {
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EmptyView()
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}.buttonStyle(PlainButtonStyle())
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}
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}
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ScrollView {
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ScrollViewReader { scrollViewProxy in
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LazyVStack {
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ForEach(timelineItems.items) { timelineItem in
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let selected = timelineModel.selectedTimelineItemID == timelineItem.article.articleID
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TimelineItemView(selected: selected, width: geometryReaderProxy.size.width, timelineItem: timelineItem)
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.background(TimelineItemBackgroundView(selected: selected, timelineItem: timelineItem))
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.onTapGesture {
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timelineModel.selectedTimelineItemIDs = Set([timelineItem.id])
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navigate = true
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}
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}
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}
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.onPreferenceChange(TimelineItemFramePreferenceKey.self) { preferences in
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for pref in preferences {
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timelineItemFrames[pref.articleID] = pref.frame
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}
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}
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.onChange(of: timelineModel.selectedTimelineItemID) { selectedArticleID in
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let proxyFrame = geometryReaderProxy.frame(in: .global)
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if let articleID = selectedArticleID, let itemFrame = timelineItemFrames[articleID] {
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if itemFrame.minY < proxyFrame.minY + 3 || itemFrame.maxY > proxyFrame.maxY - 3 {
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withAnimation {
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scrollViewProxy.scrollTo(articleID, anchor: .center)
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}
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}
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.onPreferenceChange(TimelineItemFramePreferenceKey.self) { preferences in
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for pref in preferences {
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timelineItemFrames[pref.articleID] = pref.frame
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}
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}
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.onChange(of: timelineModel.selectedTimelineItemID) { selectedArticleID in
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let proxyFrame = geometryReaderProxy.frame(in: .global)
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if let articleID = selectedArticleID, let itemFrame = timelineItemFrames[articleID] {
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if itemFrame.minY < proxyFrame.minY + 3 || itemFrame.maxY > proxyFrame.maxY - 3 {
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withAnimation {
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scrollViewProxy.scrollTo(articleID, anchor: .center)
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}
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}
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}
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@ -132,16 +118,13 @@ struct TimelineItemFramePreference: Equatable {
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let frame: CGRect
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}
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struct TimelineItemBackgroundView: View {
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let selected: Bool
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struct TimelineItemFramePreferenceView: View {
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let timelineItem: TimelineItem
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var body: some View {
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GeometryReader { proxy in
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Rectangle()
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.fill(selected ? Color.accentColor : Color.clear)
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.cornerRadius(6)
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.fill(Color.clear)
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.preference(key: TimelineItemFramePreferenceKey.self,
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value: [TimelineItemFramePreference(articleID: timelineItem.article.articleID, frame: proxy.frame(in: .global))])
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}
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