Merge pull request #2307 from damus-io/review_highlights_2024-06-19_rebased

Highlights (rebased to solve merge conflicts + minor tweaks)

damus.xcodeproj/project.pbxproj

@@ -399,6 +399,7 @@
 		5C14C29D2BBBA40B00079FD2 /* RelayAdminDetail.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5C14C29C2BBBA40B00079FD2 /* RelayAdminDetail.swift */; };
 		5C14C29F2BBBA5C600079FD2 /* RelayNipList.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5C14C29E2BBBA5C600079FD2 /* RelayNipList.swift */; };
 		5C42E78C29DB76D90086AAC1 /* EmptyUserSearchView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5C42E78B29DB76D90086AAC1 /* EmptyUserSearchView.swift */; };
+		5C4D9EA72C042FA5005EA0F7 /* HighlightPostView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5C4D9EA62C042FA5005EA0F7 /* HighlightPostView.swift */; };
 		5C513FBA297F72980072348F /* CustomPicker.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5C513FB9297F72980072348F /* CustomPicker.swift */; };
 		5C513FCC2984ACA60072348F /* QRCodeView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5C513FCB2984ACA60072348F /* QRCodeView.swift */; };
 		5C6E1DAD2A193EC2008FC15A /* GradientButtonStyle.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5C6E1DAC2A193EC2008FC15A /* GradientButtonStyle.swift */; };
@@ -406,6 +407,11 @@
 		5C7389B12B6EFA7100781E0A /* ProxyView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5C7389B02B6EFA7100781E0A /* ProxyView.swift */; };
 		5C7389B72B9E692E00781E0A /* MutinyButton.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5C7389B62B9E692E00781E0A /* MutinyButton.swift */; };
 		5C7389B92B9E69ED00781E0A /* MutinyGradient.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5C7389B82B9E69ED00781E0A /* MutinyGradient.swift */; };
+		5CC8529D2BD741CD0039FFC5 /* HighlightEvent.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5CC8529C2BD741CD0039FFC5 /* HighlightEvent.swift */; };
+		5CC8529F2BD744F60039FFC5 /* HighlightView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5CC8529E2BD744F60039FFC5 /* HighlightView.swift */; };
+		5CC852A22BDED9B90039FFC5 /* HighlightDescription.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5CC852A12BDED9B90039FFC5 /* HighlightDescription.swift */; };
+		5CC852A42BDF3CA10039FFC5 /* HighlightLink.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5CC852A32BDF3CA10039FFC5 /* HighlightLink.swift */; };
+		5CC852A62BE00F180039FFC5 /* HighlightEventRef.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5CC852A52BE00F180039FFC5 /* HighlightEventRef.swift */; };
 		5CC868DD2AA29B3200FB22BA /* NeutralButtonStyle.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5CC868DC2AA29B3200FB22BA /* NeutralButtonStyle.swift */; };
 		5CF2DCCC2AA3AF0B00984B8D /* RelayPicView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5CF2DCCB2AA3AF0B00984B8D /* RelayPicView.swift */; };
 		5CF2DCCE2AABE1A500984B8D /* DamusLightGradient.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5CF2DCCD2AABE1A500984B8D /* DamusLightGradient.swift */; };
@@ -1334,6 +1340,7 @@
 		5C14C29C2BBBA40B00079FD2 /* RelayAdminDetail.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = RelayAdminDetail.swift; sourceTree = "<group>"; };
 		5C14C29E2BBBA5C600079FD2 /* RelayNipList.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = RelayNipList.swift; sourceTree = "<group>"; };
 		5C42E78B29DB76D90086AAC1 /* EmptyUserSearchView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = EmptyUserSearchView.swift; sourceTree = "<group>"; };
+		5C4D9EA62C042FA5005EA0F7 /* HighlightPostView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = HighlightPostView.swift; sourceTree = "<group>"; };
 		5C513FB9297F72980072348F /* CustomPicker.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = CustomPicker.swift; sourceTree = "<group>"; };
 		5C513FCB2984ACA60072348F /* QRCodeView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = QRCodeView.swift; sourceTree = "<group>"; };
 		5C6E1DAC2A193EC2008FC15A /* GradientButtonStyle.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = GradientButtonStyle.swift; sourceTree = "<group>"; };
@@ -1341,6 +1348,11 @@
 		5C7389B02B6EFA7100781E0A /* ProxyView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ProxyView.swift; sourceTree = "<group>"; };
 		5C7389B62B9E692E00781E0A /* MutinyButton.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MutinyButton.swift; sourceTree = "<group>"; };
 		5C7389B82B9E69ED00781E0A /* MutinyGradient.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MutinyGradient.swift; sourceTree = "<group>"; };
+		5CC8529C2BD741CD0039FFC5 /* HighlightEvent.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = HighlightEvent.swift; sourceTree = "<group>"; };
+		5CC8529E2BD744F60039FFC5 /* HighlightView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = HighlightView.swift; sourceTree = "<group>"; };
+		5CC852A12BDED9B90039FFC5 /* HighlightDescription.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = HighlightDescription.swift; sourceTree = "<group>"; };
+		5CC852A32BDF3CA10039FFC5 /* HighlightLink.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = HighlightLink.swift; sourceTree = "<group>"; };
+		5CC852A52BE00F180039FFC5 /* HighlightEventRef.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = HighlightEventRef.swift; sourceTree = "<group>"; };
 		5CC868DC2AA29B3200FB22BA /* NeutralButtonStyle.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = NeutralButtonStyle.swift; sourceTree = "<group>"; };
 		5CF2DCCB2AA3AF0B00984B8D /* RelayPicView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = RelayPicView.swift; sourceTree = "<group>"; };
 		5CF2DCCD2AABE1A500984B8D /* DamusLightGradient.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = DamusLightGradient.swift; sourceTree = "<group>"; };
@@ -1668,6 +1680,8 @@
 				B5C60C1F2B530D5100C5ECA7 /* MuteItem.swift */,
 				B533694D2B66D791008A805E /* MutelistManager.swift */,
 				D7D2A3802BF815D000E4B42B /* PushNotificationClient.swift */,
+				D7C28E3A2BBB4D0000EE459F /* VideoCache.swift */,
+				5CC8529C2BD741CD0039FFC5 /* HighlightEvent.swift */,
 			);
 			path = Models;
 			sourceTree = "<group>";
@@ -2402,6 +2416,7 @@
 		4CC7AAEE297F11B300430951 /* Events */ = {
 			isa = PBXGroup;
 			children = (
+				5CC852A02BDED9970039FFC5 /* Highlight */,
 				4CA927682A290F8F0098A105 /* Components */,
 				4CC7AAEF297F11C700430951 /* SelectedEventView.swift */,
 				4CC7AAF5297F1A6A00430951 /* EventBody.swift */,
@@ -2699,6 +2714,18 @@
 			path = Images;
 			sourceTree = "<group>";
 		};
+		5CC852A02BDED9970039FFC5 /* Highlight */ = {
+			isa = PBXGroup;
+			children = (
+				5CC8529E2BD744F60039FFC5 /* HighlightView.swift */,
+				5CC852A12BDED9B90039FFC5 /* HighlightDescription.swift */,
+				5CC852A32BDF3CA10039FFC5 /* HighlightLink.swift */,
+				5CC852A52BE00F180039FFC5 /* HighlightEventRef.swift */,
+				5C4D9EA62C042FA5005EA0F7 /* HighlightPostView.swift */,
+			);
+			path = Highlight;
+			sourceTree = "<group>";
+		};
 		7C0F392D29B57C8F0039859C /* Extensions */ = {
 			isa = PBXGroup;
 			children = (
@@ -3153,6 +3180,7 @@
 				4C75EFAD28049CFB0006080F /* PostButton.swift in Sources */,
 				D7EDED1E2B11797D0018B19C /* LongformEvent.swift in Sources */,
 				504323A92A3495B6006AE6DC /* RelayModelCache.swift in Sources */,
+				5C4D9EA72C042FA5005EA0F7 /* HighlightPostView.swift in Sources */,
 				3A8CC6CC2A2CFEF900940F5F /* StringUtil.swift in Sources */,
 				D7FD12262BD345A700CF195B /* FirstAidSettingsView.swift in Sources */,
 				D7870BC12AC4750B0080BA88 /* MentionView.swift in Sources */,
@@ -3183,6 +3211,7 @@
 				4C32B94D2A9AD44700DC3548 /* Offset.swift in Sources */,
 				4C633350283D40E500B1C9C3 /* HomeModel.swift in Sources */,
 				4C987B57283FD07F0042CE38 /* FollowersModel.swift in Sources */,
+				5CC852A42BDF3CA10039FFC5 /* HighlightLink.swift in Sources */,
 				4C32B9552A9AD44700DC3548 /* ByteBuffer.swift in Sources */,
 				4C32B95B2A9AD44700DC3548 /* NativeObject.swift in Sources */,
 				3AB72AB9298ECF30004BB58C /* Translator.swift in Sources */,
@@ -3322,6 +3351,7 @@
 				4C3AC7A12835A81400E1F516 /* SetupView.swift in Sources */,
 				4C06670128FC7C5900038D2A /* RelayView.swift in Sources */,
 				4C285C8C28398BC7008A31F1 /* Keys.swift in Sources */,
+				5CC852A22BDED9B90039FFC5 /* HighlightDescription.swift in Sources */,
 				4C94D6432BA5AEFE00C26EFF /* QuoteRepostsView.swift in Sources */,
 				D7EDED332B12ACAE0018B19C /* DamusUserDefaults.swift in Sources */,
 				4CA352AE2A76C1AC003BB08B /* FollowedNotify.swift in Sources */,
@@ -3365,7 +3395,9 @@
 				4C2859602A12A2BE004746F7 /* SupporterBadge.swift in Sources */,
 				4C1A9A2A29DDF54400516EAC /* DamusVideoPlayer.swift in Sources */,
 				4CA352A22A76AEC5003BB08B /* LikedNotify.swift in Sources */,
+				5CC8529F2BD744F60039FFC5 /* HighlightView.swift in Sources */,
 				BA37598D2ABCCE500018D73B /* PhotoCaptureProcessor.swift in Sources */,
+				5CC8529D2BD741CD0039FFC5 /* HighlightEvent.swift in Sources */,
 				4C9146FD2A2A87C200DDEA40 /* wasm.c in Sources */,
 				4C75EFAF28049D350006080F /* NostrFilter.swift in Sources */,
 				4C3EA64C28FF59AC00C48A62 /* bech32_util.c in Sources */,
@@ -3477,6 +3509,7 @@
 				B51C1CEB2B55A60A00E312A9 /* MuteDurationMenu.swift in Sources */,
 				4CB88389296AF99A00DC99E7 /* EventDetailBar.swift in Sources */,
 				4C32B9512A9AD44700DC3548 /* FlatbuffersErrors.swift in Sources */,
+				5CC852A62BE00F180039FFC5 /* HighlightEventRef.swift in Sources */,
 				4CE8794E2996B16A00F758CC /* RelayToggle.swift in Sources */,
 				4C3AC79B28306D7B00E1F516 /* Contacts.swift in Sources */,
 				4C3EA63D28FF52D600C48A62 /* bolt11.c in Sources */,

damus/Assets.xcassets/Colors/DamusHighlight.colorset/Contents.json

@@ -0,0 +1,38 @@
+{
+  "colors" : [
+    {
+      "color" : {
+        "color-space" : "srgb",
+        "components" : {
+          "alpha" : "1.000",
+          "blue" : "0xF2",
+          "green" : "0xD8",
+          "red" : "0xF4"
+        }
+      },
+      "idiom" : "universal"
+    },
+    {
+      "appearances" : [
+        {
+          "appearance" : "luminosity",
+          "value" : "dark"
+        }
+      ],
+      "color" : {
+        "color-space" : "srgb",
+        "components" : {
+          "alpha" : "1.000",
+          "blue" : "0x45",
+          "green" : "0x17",
+          "red" : "0x47"
+        }
+      },
+      "idiom" : "universal"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

damus/Components/DamusColors.swift

@@ -28,6 +28,7 @@ class DamusColors {
     static let green = Color("DamusGreen")
     static let purple = Color("DamusPurple")
     static let deepPurple = Color("DamusDeepPurple")
+    static let highlight = Color("DamusHighlight")
     static let blue = Color("DamusBlue")
     static let bitcoin = Color("Bitcoin")
     static let success = Color("DamusSuccessPrimary")

damus/Components/SelectableText.swift

@@ -9,16 +9,20 @@ import UIKit
 import SwiftUI
 
 struct SelectableText: View {
-    
+    let damus_state: DamusState
+    let event: NostrEvent?
     let attributedString: AttributedString
     let textAlignment: NSTextAlignment
-    
+    @State private var showHighlightPost = false
+    @State private var selectedText = ""
     @State private var selectedTextHeight: CGFloat = .zero
     @State private var selectedTextWidth: CGFloat = .zero
-    
+
     let size: EventViewKind
-    
+
-    init(attributedString: AttributedString, textAlignment: NSTextAlignment? = nil, size: EventViewKind) {
+    init(damus_state: DamusState, event: NostrEvent?, attributedString: AttributedString, textAlignment: NSTextAlignment? = nil, size: EventViewKind) {
+        self.damus_state = damus_state
+        self.event = event
         self.attributedString = attributedString
         self.textAlignment = textAlignment ?? NSTextAlignment.natural
         self.size = size
@@ -32,6 +36,9 @@ struct SelectableText: View {
                 font: eventviewsize_to_uifont(size),
                 fixedWidth: selectedTextWidth,
                 textAlignment: self.textAlignment,
+                enableHighlighting: self.enableHighlighting(),
+                showHighlightPost: $showHighlightPost,
+                selectedText: $selectedText,
                 height: $selectedTextHeight
             )
             .padding([.leading, .trailing], -1.0)
@@ -46,8 +53,48 @@ struct SelectableText: View {
                 self.selectedTextWidth = newSize.width
             }
         }
+        .sheet(isPresented: $showHighlightPost) {
+            if let event {
+                HighlightPostView(damus_state: damus_state, event: event, selectedText: $selectedText)
+                    .presentationDragIndicator(.visible)
+                    .presentationDetents([.height(selectedTextHeight + 150), .medium, .large])
+            }
+        }
         .frame(height: selectedTextHeight)
     }
+    
+    func enableHighlighting() -> Bool {
+        self.event != nil
+    }
+}
+
+fileprivate class TextView: UITextView {
+    @Binding var showHighlightPost: Bool
+    @Binding var selectedText: String
+
+    init(frame: CGRect, textContainer: NSTextContainer?, showHighlightPost: Binding<Bool>, selectedText: Binding<String>) {
+        self._showHighlightPost = showHighlightPost
+        self._selectedText = selectedText
+        super.init(frame: frame, textContainer: textContainer)
+    }
+
+    required init?(coder: NSCoder) {
+            fatalError("init(coder:) has not been implemented")
+        }
+
+    override func canPerformAction(_ action: Selector, withSender sender: Any?) -> Bool {
+        if action == #selector(highlightText(_:)) {
+            return true
+        }
+        return super.canPerformAction(action, withSender: sender)
+    }
+
+    @objc public func highlightText(_ sender: Any?) {
+        guard let selectedRange = self.selectedTextRange else { return }
+        selectedText = self.text(in: selectedRange) ?? ""
+        showHighlightPost.toggle()
+    }
+
 }
 
  fileprivate struct TextViewRepresentable: UIViewRepresentable {
@@ -57,11 +104,13 @@ struct SelectableText: View {
     let font: UIFont
     let fixedWidth: CGFloat
     let textAlignment: NSTextAlignment
-
+    let enableHighlighting: Bool
+    @Binding var showHighlightPost: Bool
+    @Binding var selectedText: String
     @Binding var height: CGFloat
 
-    func makeUIView(context: UIViewRepresentableContext<Self>) -> UITextView {
+    func makeUIView(context: UIViewRepresentableContext<Self>) -> TextView {
-        let view = UITextView()
+        let view = TextView(frame: .zero, textContainer: nil, showHighlightPost: $showHighlightPost, selectedText: $selectedText)
         view.isEditable = false
         view.dataDetectorTypes = .all
         view.isSelectable = true
@@ -71,10 +120,15 @@ struct SelectableText: View {
         view.textContainerInset.left = 1.0
         view.textContainerInset.right = 1.0
         view.textAlignment = textAlignment
+
+        let menuController = UIMenuController.shared
+        let highlightItem = UIMenuItem(title: "Highlight", action: #selector(view.highlightText(_:)))
+        menuController.menuItems = self.enableHighlighting ? [highlightItem] : []
+
         return view
     }
 
-    func updateUIView(_ uiView: UITextView, context: UIViewRepresentableContext<Self>) {
+    func updateUIView(_ uiView: TextView, context: UIViewRepresentableContext<Self>) {
         let mutableAttributedString = createNSAttributedString()
         uiView.attributedText = mutableAttributedString
         uiView.textAlignment = self.textAlignment

damus/Components/TranslateView.swift

@@ -51,9 +51,9 @@ struct TranslateView: View {
                 .foregroundColor(.gray)
                 .font(.footnote)
                 .padding([.top, .bottom], 10)
-            
+
             if self.size == .selected {
-                SelectableText(attributedString: artifacts.content.attributed, size: self.size)
+                SelectableText(damus_state: damus_state, event: event, attributedString: artifacts.content.attributed, size: self.size)
             } else {
                 artifacts.content.text
                     .font(eventviewsize_to_font(self.size, font_size: font_size))

damus/Models/HighlightEvent.swift

@@ -0,0 +1,34 @@
+//
+//  HighlightEvent.swift
+//  damus
+//
+//  Created by eric on 4/22/24.
+//
+
+import Foundation
+
+struct HighlightEvent {
+    let event: NostrEvent
+
+    var event_ref: String? = nil
+    var url_ref: URL? = nil
+    var context: String? = nil
+
+    static func parse(from ev: NostrEvent) -> HighlightEvent {
+        var highlight = HighlightEvent(event: ev)
+
+        for tag in ev.tags {
+            guard tag.count >= 2 else { continue }
+            switch tag[0].string() {
+            case "e":   highlight.event_ref = tag[1].string()
+            case "a":   highlight.event_ref = tag[1].string()
+            case "r":   highlight.url_ref = URL(string: tag[1].string())
+            case "context": highlight.context = tag[1].string()
+            default:
+                break
+            }
+        }
+
+        return highlight
+    }
+}

damus/Models/HomeModel.swift

@@ -184,7 +184,7 @@ class HomeModel: ContactsDelegate {
         }
 
         switch kind {
-        case .chat, .longform, .text:
+        case .chat, .longform, .text, .highlight:
             handle_text_event(sub_id: sub_id, ev)
         case .contacts:
             handle_contact_event(sub_id: sub_id, relay_id: relay_id, ev: ev)
@@ -586,7 +586,7 @@ class HomeModel: ContactsDelegate {
     func subscribe_to_home_filters(friends fs: [Pubkey]? = nil, relay_id: RelayURL? = nil) {
         // TODO: separate likes?
         var home_filter_kinds: [NostrKind] = [
-            .text, .longform, .boost
+            .text, .longform, .boost, .highlight
         ]
         if !damus_state.settings.onlyzaps_mode {
             home_filter_kinds.append(.like)

damus/Models/ProfileModel.swift

@@ -60,11 +60,11 @@ class ProfileModel: ObservableObject, Equatable {
         damus.pool.unsubscribe(sub_id: sub_id)
         damus.pool.unsubscribe(sub_id: prof_subid)
     }
-    
+
     func subscribe() {
-        var text_filter = NostrFilter(kinds: [.text, .longform])
+        var text_filter = NostrFilter(kinds: [.text, .longform, .highlight])
         var profile_filter = NostrFilter(kinds: [.contacts, .metadata, .boost])
-        
+
         profile_filter.authors = [pubkey]
         
         text_filter.authors = [pubkey]

damus/Models/SearchModel.swift

@@ -36,7 +36,7 @@ class SearchModel: ObservableObject {
     func subscribe() {
         // since 1 month
         search.limit = self.limit
-        search.kinds = [.text, .like, .longform]
+        search.kinds = [.text, .like, .longform, .highlight]
 
         //likes_filter.ids = ref_events.referenced_ids!
 

damus/Nostr/NostrKind.swift

@@ -22,6 +22,7 @@ enum NostrKind: UInt32, Codable {
     case longform = 30023
     case zap = 9735
     case zap_request = 9734
+    case highlight = 9802
     case nwc_request = 23194
     case nwc_response = 23195
     case http_auth = 27235

damus/Views/EventView.swift

@@ -45,6 +45,8 @@ struct EventView: View {
                 }
             } else if event.known_kind == .longform {
                 LongformPreview(state: damus, ev: event, options: options)
+            } else if event.known_kind == .highlight {
+                HighlightView(state: damus, event: event, options: options)
             } else {
                 TextEvent(damus: damus, event: event, pubkey: pubkey, options: options)
                     //.padding([.top], 6)

damus/Views/Events/Components/ReplyPart.swift

@@ -16,7 +16,15 @@ struct ReplyPart: View {
     var body: some View {
         Group {
             if let reply_ref = event.thread_reply()?.reply {
-                ReplyDescription(event: event, replying_to: events.lookup(reply_ref.note_id), ndb: ndb)
+                let replying_to = events.lookup(reply_ref.note_id)
+                if event.known_kind != .highlight {
+                    ReplyDescription(event: event, replying_to: replying_to, ndb: ndb)
+                } else if event.known_kind == .highlight {
+                    HighlightDescription(event: event, highlighted_event: replying_to, ndb: ndb)
+                }
+                else {
+                    EmptyView()
+                }
             } else {
                 EmptyView()
             }

damus/Views/Events/EventBody.swift

@@ -35,6 +35,8 @@ struct EventBody: View {
             if !options.contains(.truncate_content) {
                 note_content
             }
+        } else if event.known_kind == .highlight {
+            HighlightBodyView(state: damus_state, ev: event, options: options)
         } else {
             note_content
         }

damus/Views/Events/Highlight/HighlightDescription.swift

@@ -0,0 +1,53 @@
+//
+//  HighlightDescription.swift
+//  damus
+//
+//  Created by eric on 4/28/24.
+//
+
+import SwiftUI
+
+// Modified from Reply Description
+struct HighlightDescription: View {
+    let event: NostrEvent
+    let highlighted_event: NostrEvent?
+    let ndb: Ndb
+
+    var body: some View {
+        (Text(Image(systemName: "highlighter")) + Text(verbatim: " \(highlight_desc(ndb: ndb, event: event, highlighted_event: highlighted_event))"))
+            .font(.footnote)
+            .foregroundColor(.gray)
+            .frame(maxWidth: .infinity, alignment: .leading)
+
+    }
+}
+
+struct HighlightDescription_Previews: PreviewProvider {
+    static var previews: some View {
+        HighlightDescription(event: test_note, highlighted_event: test_note, ndb: test_damus_state.ndb)
+    }
+}
+
+func highlight_desc(ndb: Ndb, event: NostrEvent, highlighted_event: NostrEvent?, locale: Locale = Locale.current) -> String {
+    let desc = make_reply_description(event, replying_to: highlighted_event)
+    let pubkeys = desc.pubkeys
+
+    let bundle = bundleForLocale(locale: locale)
+
+    if pubkeys.count == 0 {
+        return NSLocalizedString("Highlighted", bundle: bundle, comment: "Label to indicate that the user is highlighting their own post.")
+    }
+
+    guard let profile_txn = NdbTxn(ndb: ndb) else  {
+        return ""
+    }
+
+    let names: [String] = pubkeys.map { pk in
+        let prof = ndb.lookup_profile_with_txn(pk, txn: profile_txn)
+
+        return Profile.displayName(profile: prof?.profile, pubkey: pk).username.truncate(maxLength: 50)
+    }
+
+    let uniqueNames: [String] = Array(Set(names))
+    return String(format: NSLocalizedString("Highlighted %@", bundle: bundle, comment: "Label to indicate that the user is highlighting 1 user."), locale: locale, uniqueNames.first ?? "")
+}

damus/Views/Events/Highlight/HighlightEventRef.swift

@@ -0,0 +1,92 @@
+//
+//  HighlightEventRef.swift
+//  damus
+//
+//  Created by eric on 4/29/24.
+//
+
+import SwiftUI
+import Kingfisher
+
+struct HighlightEventRef: View {
+    let damus_state: DamusState
+    let event_ref: NoteId
+
+    init(damus_state: DamusState, event_ref: NoteId) {
+        self.damus_state = damus_state
+        self.event_ref = event_ref
+    }
+
+    struct FailedImage: View {
+        var body: some View {
+            Image("markdown")
+                .resizable()
+                .foregroundColor(DamusColors.neutral6)
+                .background(DamusColors.neutral3)
+                .frame(width: 35, height: 35)
+                .clipShape(RoundedRectangle(cornerRadius: 10))
+                .overlay(RoundedRectangle(cornerRadius: 10).stroke(.gray.opacity(0.5), lineWidth: 0.5))
+                .scaledToFit()
+        }
+    }
+
+    var body: some View {
+        EventLoaderView(damus_state: damus_state, event_id: event_ref) { event in
+            EventMutingContainerView(damus_state: damus_state, event: event) {
+                if event.known_kind == .longform {
+                    HStack(alignment: .top, spacing: 10) {
+                        let longform_event = LongformEvent.parse(from: event)
+                        if let url = longform_event.image {
+                            KFAnimatedImage(url)
+                                .callbackQueue(.dispatch(.global(qos:.background)))
+                                .backgroundDecode(true)
+                                .imageContext(.note, disable_animation: true)
+                                .image_fade(duration: 0.25)
+                                .cancelOnDisappear(true)
+                                .configure { view in
+                                    view.framePreloadCount = 3
+                                }
+                                .background {
+                                    FailedImage()
+                                }
+                                .frame(width: 35, height: 35)
+                                .clipShape(RoundedRectangle(cornerRadius: 10))
+                                .overlay(RoundedRectangle(cornerRadius: 10).stroke(.gray.opacity(0.5), lineWidth: 0.5))
+                                .scaledToFit()
+                        } else {
+                            FailedImage()
+                        }
+
+                        VStack(alignment: .leading, spacing: 5) {
+                            Text(longform_event.title ?? "Untitled")
+                                .font(.system(size: 14, weight: .bold))
+                                .lineLimit(1)
+
+                            let profile_txn = damus_state.profiles.lookup(id: longform_event.event.pubkey, txn_name: "highlight-profile")
+                            let profile = profile_txn?.unsafeUnownedValue
+
+                            if let display_name = profile?.display_name {
+                                Text(display_name)
+                                    .font(.system(size: 12))
+                                    .foregroundColor(.gray)
+                            } else if let name = profile?.name {
+                                Text(name)
+                                    .font(.system(size: 12))
+                                    .foregroundColor(.gray)
+                            }
+                        }
+                    }
+                    .padding([.leading, .vertical], 7)
+                    .frame(maxWidth: .infinity, alignment: .leading)
+                    .cornerRadius(10)
+                    .overlay(
+                        RoundedRectangle(cornerRadius: 10)
+                            .stroke(DamusColors.neutral3, lineWidth: 2)
+                    )
+                } else {
+                    EmptyView()
+                }
+            }
+        }
+    }
+}

damus/Views/Events/Highlight/HighlightLink.swift

@@ -0,0 +1,101 @@
+//
+//  HighlightLink.swift
+//  damus
+//
+//  Created by eric on 4/28/24.
+//
+
+import SwiftUI
+import Kingfisher
+
+struct HighlightLink: View {
+    let state: DamusState
+    let url: URL
+    let content: String
+    @Environment(\.openURL) var openURL
+
+    func text_fragment_url() -> URL? {
+        let fragmentDirective = "#:~:"
+        let textDirective = "text="
+        let separator = ","
+        var text = ""
+
+        let components = content.components(separatedBy: " ")
+        if components.count <= 10 {
+            text = content
+        } else {
+            let textStart = Array(components.prefix(5)).joined(separator: " ")
+            let textEnd = Array(components.suffix(2)).joined(separator: " ")
+            text = textStart + separator + textEnd
+        }
+
+        let url_with_fragments = url.absoluteString + fragmentDirective + textDirective + text
+        return URL(string: url_with_fragments)
+    }
+
+    func get_url_icon() -> URL? {
+        var icon = URL(string: url.absoluteString + "/favicon.ico")
+        if let url_host = url.host() {
+            icon = URL(string: "https://" + url_host + "/favicon.ico")
+        }
+        return icon
+    }
+
+    var body: some View {
+        Button(action: {
+            openURL(text_fragment_url() ?? url)
+        }, label: {
+            HStack(spacing: 10) {
+                if let url = get_url_icon() {
+                    KFAnimatedImage(url)
+                        .imageContext(.pfp, disable_animation: true)
+                        .cancelOnDisappear(true)
+                        .configure { view in
+                            view.framePreloadCount = 3
+                        }
+                        .placeholder { _ in
+                            Image("link")
+                                .resizable()
+                                .padding(5)
+                                .foregroundColor(DamusColors.neutral6)
+                                .background(DamusColors.adaptableWhite)
+                        }
+                        .frame(width: 35, height: 35)
+                        .clipShape(RoundedRectangle(cornerRadius: 10))
+                        .scaledToFit()
+                } else {
+                    Image("link")
+                        .resizable()
+                        .padding(5)
+                        .foregroundColor(DamusColors.neutral6)
+                        .background(DamusColors.adaptableWhite)
+                        .frame(width: 35, height: 35)
+                        .clipShape(RoundedRectangle(cornerRadius: 10))
+                }
+
+                Text(url.absoluteString)
+                    .font(eventviewsize_to_font(.normal, font_size: state.settings.font_size))
+                    .foregroundColor(DamusColors.adaptableBlack)
+                    .truncationMode(.tail)
+                    .lineLimit(1)
+            }
+            .padding([.leading, .vertical], 7)
+            .frame(maxWidth: .infinity, alignment: .leading)
+            .background(DamusColors.neutral3)
+            .cornerRadius(10)
+            .overlay(
+                RoundedRectangle(cornerRadius: 10)
+                    .stroke(DamusColors.neutral3, lineWidth: 2)
+            )
+        })
+    }
+}
+
+struct HighlightLink_Previews: PreviewProvider {
+    static var previews: some View {
+        let url = URL(string: "https://damus.io")!
+        VStack {
+            HighlightLink(state: test_damus_state, url: url, content: "")
+        }
+    }
+}

damus/Views/Events/Highlight/HighlightPostView.swift

@@ -0,0 +1,78 @@
+//
+//  HighlightPostView.swift
+//  damus
+//
+//  Created by eric on 5/26/24.
+//
+
+import SwiftUI
+
+struct HighlightPostView: View {
+    let damus_state: DamusState
+    let event: NostrEvent
+    @Binding var selectedText: String
+
+    @Environment(\.dismiss) var dismiss
+
+    var body: some View {
+        VStack(alignment: .leading, spacing: 0) {
+            VStack {
+                HStack(spacing: 5.0) {
+                    Button(action: {
+                        dismiss()
+                    }, label: {
+                        Text("Cancel", comment: "Button to cancel out of highlighting a note.")
+                            .padding(10)
+                    })
+                    .buttonStyle(NeutralButtonStyle())
+
+                    Spacer()
+
+                    Button(NSLocalizedString("Post", comment: "Button to post a highlight.")) {
+                        var tags: [[String]] = [ ["e", "\(self.event.id)"] ]
+                        tags.append(["context", self.event.content])
+
+                        let kind = NostrKind.highlight.rawValue
+                        guard let ev = NostrEvent(content: selectedText, keypair: damus_state.keypair, kind: kind, tags: tags) else {
+                            return
+                        }
+                        damus_state.postbox.send(ev)
+                        dismiss()
+                    }
+                    .bold()
+                    .buttonStyle(GradientButtonStyle(padding: 10))
+                }
+
+                Divider()
+                    .foregroundColor(DamusColors.neutral3)
+                    .padding(.top, 5)
+            }
+            .frame(height: 30)
+            .padding()
+            .padding(.top, 15)
+
+            HStack {
+                var attributedString: AttributedString {
+                    var attributedString = AttributedString(self.event.content)
+
+                    if let range = attributedString.range(of: selectedText) {
+                        attributedString[range].backgroundColor = DamusColors.highlight
+                    }
+
+                    return attributedString
+                }
+
+                Text(attributedString)
+                    .lineSpacing(5)
+                    .padding(10)
+            }
+            .overlay(
+                RoundedRectangle(cornerRadius: 25).fill(DamusColors.highlight).frame(width: 4),
+                alignment: .leading
+            )
+            .padding()
+
+            Spacer()
+        }
+    }
+}

damus/Views/Events/Highlight/HighlightView.swift

@@ -0,0 +1,192 @@
+//
+//  HighlightView.swift
+//  damus
+//
+//  Created by eric on 4/22/24.
+//
+
+import SwiftUI
+import Kingfisher
+
+struct HighlightTruncatedText: View {
+    let attributedString: AttributedString
+    let maxChars: Int
+
+    init(attributedString: AttributedString, maxChars: Int = 360) {
+        self.attributedString = attributedString
+        self.maxChars = maxChars
+    }
+
+    var body: some View {
+        VStack(alignment: .leading) {
+
+            let truncatedAttributedString: AttributedString? = attributedString.truncateOrNil(maxLength: maxChars)
+
+            if let truncatedAttributedString {
+                Text(truncatedAttributedString)
+                    .fixedSize(horizontal: false, vertical: true)
+            } else {
+                Text(attributedString)
+                    .fixedSize(horizontal: false, vertical: true)
+            }
+
+            if truncatedAttributedString != nil {
+                Spacer()
+                Button(NSLocalizedString("Show more", comment: "Button to show entire note.")) { }
+                    .allowsHitTesting(false)
+            }
+        }
+    }
+}
+
+struct HighlightBodyView: View {
+    let state: DamusState
+    let event: HighlightEvent
+    let options: EventViewOptions
+
+    init(state: DamusState, ev: HighlightEvent, options: EventViewOptions) {
+        self.state = state
+        self.event = ev
+        self.options = options
+    }
+
+    init(state: DamusState, ev: NostrEvent, options: EventViewOptions) {
+        self.state = state
+        self.event = HighlightEvent.parse(from: ev)
+        self.options = options
+    }
+
+    var body: some View {
+        Group {
+            if options.contains(.wide) {
+                Main.padding(.horizontal)
+            } else {
+                Main
+            }
+        }
+    }
+
+    var truncate: Bool {
+        return options.contains(.truncate_content)
+    }
+
+    var truncate_very_short: Bool {
+        return options.contains(.truncate_content_very_short)
+    }
+
+    func truncatedText(attributedString: AttributedString) -> some View {
+        Group {
+            if truncate_very_short {
+                HighlightTruncatedText(attributedString: attributedString, maxChars: 140)
+                    .font(eventviewsize_to_font(.normal, font_size: state.settings.font_size))
+            }
+            else if truncate {
+                HighlightTruncatedText(attributedString: attributedString)
+                    .font(eventviewsize_to_font(.normal, font_size: state.settings.font_size))
+            } else {
+                Text(attributedString)
+                    .font(eventviewsize_to_font(.normal, font_size: state.settings.font_size))
+            }
+        }
+    }
+
+    var Main: some View {
+        VStack(alignment: .leading, spacing: 0) {
+            HStack {
+                var attributedString: AttributedString {
+                    var attributedString: AttributedString = ""
+                    if let context = event.context {
+                        if context.count < event.event.content.count {
+                            attributedString = AttributedString(event.event.content)
+                        } else {
+                            attributedString = AttributedString(context)
+                        }
+                    } else {
+                        attributedString = AttributedString(event.event.content)
+                    }
+
+                    if let range = attributedString.range(of: event.event.content) {
+                        attributedString[range].backgroundColor = DamusColors.highlight
+                    }
+                    return attributedString
+                }
+
+                truncatedText(attributedString: attributedString)
+                    .lineSpacing(5)
+                    .padding(10)
+            }
+            .overlay(
+                RoundedRectangle(cornerRadius: 25).fill(DamusColors.highlight).frame(width: 4),
+                alignment: .leading
+            )
+            .padding(.bottom, 10)
+
+            if let url = event.url_ref {
+                HighlightLink(state: state, url: url, content: event.event.content)
+            } else {
+                if let evRef = event.event_ref {
+                    if let eventHex = hex_decode_id(evRef) {
+                        HighlightEventRef(damus_state: state, event_ref: NoteId(eventHex))
+                            .padding(.top, 5)
+                    }
+                }
+            }
+
+        }
+    }
+}
+
+struct HighlightView: View {
+    let state: DamusState
+    let event: HighlightEvent
+    let options: EventViewOptions
+
+    init(state: DamusState, event: NostrEvent, options: EventViewOptions) {
+        self.state = state
+        self.event = HighlightEvent.parse(from: event)
+        self.options = options.union(.no_mentions)
+    }
+
+    var body: some View {
+        VStack(alignment: .leading) {
+            EventShell(state: state, event: event.event, options: options) {
+                HighlightBodyView(state: state, ev: event, options: options)
+            }
+        }
+    }
+}
+
+struct HighlightView_Previews: PreviewProvider {
+    static var previews: some View {
+
+        let content = "Nostr, a decentralized and open social network protocol. Without ads, toxic algorithms, or censorship"
+        let context = "Damus is built on Nostr, a decentralized and open social network protocol. Without ads, toxic algorithms, or censorship, Damus gives you access to the social network that a truly free and healthy society needs — and deserves."
+
+        let test_highlight_event = HighlightEvent.parse(from: NostrEvent(
+            content: content,
+            keypair: test_keypair,
+            kind: NostrKind.highlight.rawValue,
+            tags: [
+                ["context", context],
+                ["r", "https://damus.io"],
+                ["p", "32e1827635450ebb3c5a7d12c1f8e7b2b514439ac10a67eef3d9fd9c5c68e245"],
+            ])!
+        )
+
+        let test_highlight_event2 = HighlightEvent.parse(from: NostrEvent(
+            content: content,
+            keypair: test_keypair,
+            kind: NostrKind.highlight.rawValue,
+            tags: [
+                ["context", context],
+                ["e", "36017b098859d62e1dbd802290d59c9de9f18bb0ca00ba4b875c2930dd5891ae"],
+                ["p", "32e1827635450ebb3c5a7d12c1f8e7b2b514439ac10a67eef3d9fd9c5c68e245"],
+            ])!
+        )
+        VStack {
+            HighlightView(state: test_damus_state, event: test_highlight_event.event, options: [])
+
+            HighlightView(state: test_damus_state, event: test_highlight_event2.event, options: [.wide])
+        }
+    }
+}

damus/Views/Events/Longform/LongformView.swift

@@ -21,10 +21,10 @@ struct LongformView: View {
     var options: EventViewOptions {
         return [.wide, .no_mentions, .no_replying_to]
     }
-    
+
     var body: some View {
         EventShell(state: state, event: event.event, options: options) {
-            SelectableText(attributedString: AttributedString(stringLiteral: event.title ?? "Untitled"), size: .title)
+            SelectableText(damus_state: state, event: event.event, attributedString: AttributedString(stringLiteral: event.title ?? "Untitled"), size: .title)
 
             NoteContentView(damus_state: state, event: event.event, blur_images: false, size: .selected, options: options)
         }

damus/Views/Events/SelectedEventView.swift

@@ -41,7 +41,16 @@ struct SelectedEventView: View {
                 .lineLimit(1)
 
                 if let reply_ref = event.thread_reply()?.reply {
-                    ReplyDescription(event: event, replying_to: damus.events.lookup(reply_ref.note_id), ndb: damus.ndb)
+                    let replying_to = damus.events.lookup(reply_ref.note_id)
+                    if event.known_kind == .highlight {
+                        HighlightDescription(event: event, highlighted_event: replying_to, ndb: damus.ndb)
+                            .padding(.horizontal)
+                    } else {
+                        ReplyDescription(event: event, replying_to: replying_to, ndb: damus.ndb)
+                            .padding(.horizontal)
+                    }
+                } else if event.known_kind == .highlight {
+                    HighlightDescription(event: event, highlighted_event: nil, ndb: damus.ndb)
                         .padding(.horizontal)
                 }
 

damus/Views/NoteContentView.swift

@@ -132,10 +132,10 @@ struct NoteContentView: View {
         VStack(alignment: .leading) {
             if size == .selected {
                 if with_padding {
-                    SelectableText(attributedString: artifacts.content.attributed, size: self.size)
+                    SelectableText(damus_state: damus_state, event: self.event, attributedString: artifacts.content.attributed, size: self.size)
                         .padding(.horizontal)
                 } else {
-                    SelectableText(attributedString: artifacts.content.attributed, size: self.size)
+                    SelectableText(damus_state: damus_state, event: self.event, attributedString: artifacts.content.attributed, size: self.size)
                 }
             } else {
                 if with_padding {

damus/Views/Profile/AboutView.swift

@@ -26,7 +26,7 @@ struct AboutView: View {
         Group {
             if let about_string {
                 let truncated_about = show_full_about ? about_string : about_string.truncateOrNil(maxLength: max_about_length)
-                SelectableText(attributedString: truncated_about ?? about_string, textAlignment: self.text_alignment, size: .subheadline)
+                SelectableText(damus_state: state, event: nil, attributedString: truncated_about ?? about_string, textAlignment: self.text_alignment, size: .subheadline)
 
                 if truncated_about != nil {
                     if show_full_about {

nostrdb/NdbNote+.swift

@@ -14,7 +14,7 @@ extension NdbNote {
     }
 
     func get_cached_inner_event(cache: EventCache) -> NdbNote? {
-        guard self.known_kind == .boost else {
+        guard self.known_kind == .boost || self.known_kind == .highlight else {
             return nil
         }
 

nostrdb/NdbNote.swift

@@ -277,7 +277,7 @@ class NdbNote: Encodable, Equatable, Hashable {
 // Extension to make NdbNote compatible with NostrEvent's original API
 extension NdbNote {
     var is_textlike: Bool {
-        return kind == 1 || kind == 42 || kind == 30023
+        return kind == 1 || kind == 42 || kind == 30023 || kind == 9802
     }
 
     var is_quote_repost: NoteId? {