Added new and improved Share sheet

Changelog-Added: New and Improved Share sheet
Closes: #764

damus/Views/ActionBar/EventActionBar.swift

@@ -28,9 +28,12 @@ struct EventActionBar: View {
     @State var sheet: ActionBarSheet? = nil
     @State var confirm_boost: Bool = false
     @State var show_share_sheet: Bool = false
+    @State var show_share_action: Bool = false
     
     @ObservedObject var bar: ActionBarModel
     
+    @Environment(\.colorScheme) var colorScheme
+    
     init(damus_state: DamusState, event: NostrEvent, bar: ActionBarModel? = nil, test_lnurl: String? = nil) {
         self.damus_state = damus_state
         self.event = event
@@ -88,10 +91,23 @@ struct EventActionBar: View {
 
             Spacer()
             EventActionButton(img: "square.and.arrow.up", col: Color.gray) {
-                show_share_sheet = true
+                show_share_action = true
             }
             .accessibilityLabel(NSLocalizedString("Share", comment: "Button to share a post"))
         }
+        .sheet(isPresented: $show_share_action) {
+            if #available(iOS 16.0, *) {
+                ShareAction(event: event, bookmarks: damus_state.bookmarks, show_share_sheet: $show_share_sheet, show_share_action: $show_share_action)
+                    .presentationDetents([.height(300)])
+                    .presentationDragIndicator(.visible)
+            } else {
+                if let note_id = bech32_note_id(event.id) {
+                    if let url = URL(string: "https://damus.io/" + note_id) {
+                        ShareSheet(activityItems: [url])
+                    }
+                }
+            }
+        }
         .sheet(isPresented: $show_share_sheet) {
             if let note_id = bech32_note_id(event.id) {
                 if let url = URL(string: "https://damus.io/" + note_id) {

damus/Views/ActionBar/ShareAction.swift

@@ -0,0 +1,110 @@
+//
+//  ShareAction.swift
+//  damus
+//
+//  Created by eric on 3/8/23.
+//
+
+import SwiftUI
+
+struct ShareAction: View {
+    let event: NostrEvent
+    let bookmarks: BookmarksManager
+    @State private var isBookmarked: Bool = false
+
+    @Binding var show_share_sheet: Bool
+    @Binding var show_share_action: Bool
+    
+    @Environment(\.colorScheme) var colorScheme
+    
+    init(event: NostrEvent, bookmarks: BookmarksManager, show_share_sheet: Binding<Bool>, show_share_action: Binding<Bool>) {
+        let bookmarked = bookmarks.isBookmarked(event)
+        self._isBookmarked = State(initialValue: bookmarked)
+        
+        self.bookmarks = bookmarks
+        self.event = event
+        self._show_share_sheet = show_share_sheet
+        self._show_share_action = show_share_action
+    }
+    
+    var body: some View {
+        
+        let col = colorScheme == .light ? Color("DamusMediumGrey") : Color("DamusWhite")
+        
+        VStack {
+            Text("Share Note")
+                .padding()
+                .font(.system(size: 17, weight: .bold))
+            
+            Spacer()
+
+            HStack(alignment: .top, spacing: 25) {
+                
+                ShareActionButton(img: "link", txt: "Copy Link", comment: "Button to copy link to note", col: col) {
+                    show_share_action = false
+                    UIPasteboard.general.string = "https://damus.io/" + (bech32_note_id(event.id) ?? event.id)
+                }
+                
+                let bookmarkImg = isBookmarked ? "bookmark.slash" : "bookmark"
+                let bookmarkTxt = isBookmarked ? "Remove\nBookmark" : "Bookmark"
+                let boomarkCol = isBookmarked ? Color(.red) : col
+                ShareActionButton(img: bookmarkImg, txt: bookmarkTxt, comment: "Button to bookmark to note", col: boomarkCol) {
+                    show_share_action = false
+                    self.bookmarks.updateBookmark(event)
+                    isBookmarked = self.bookmarks.isBookmarked(event)
+                }
+                
+                ShareActionButton(img: "globe", txt: "Broadcast", comment: "Button to broadcast note to all your relays", col: col) {
+                    show_share_action = false
+                    NotificationCenter.default.post(name: .broadcast_event, object: event)
+                }
+                
+                ShareActionButton(img: "square.and.arrow.up", txt: "Share Via...", comment: "Button to present iOS share sheet", col: col) {
+                    show_share_action = false
+                    show_share_sheet = true
+                }
+                
+            }
+            
+            Spacer()
+            
+            HStack {
+                
+                Button(action: {
+                    show_share_action = false
+                }) {
+                    Text(NSLocalizedString("Cancel", comment: "Button to cancel a repost."))
+                    .frame(minWidth: 300, maxWidth: .infinity, minHeight: 50, maxHeight: 50, alignment: .center)
+                    .foregroundColor(colorScheme == .light ? Color("DamusBlack") : Color("DamusWhite"))
+                    .overlay {
+                        RoundedRectangle(cornerRadius: 24)
+                            .stroke(colorScheme == .light ? Color("DamusMediumGrey") : Color("DamusWhite"), lineWidth: 1)
+                    }
+                    .padding(EdgeInsets(top: 10, leading: 50, bottom: 25, trailing: 50))
+                }
+            }
+        }
+    }
+}
+
+func ShareActionButton(img: String, txt: String, comment: String, col: Color, action: @escaping () -> ()) -> some View {
+    Button(action: action) {
+        VStack() {
+            Image(systemName: img)
+                .foregroundColor(col)
+                .font(.system(size: 23, weight: .bold))
+                .overlay {
+                    Circle()
+                        .stroke(col, lineWidth: 1)
+                        .frame(width: 55.0, height: 55.0)
+                }
+                .frame(height: 25)
+            Text(NSLocalizedString(txt, comment: comment))
+                .foregroundColor(col)
+                .font(.footnote)
+                .multilineTextAlignment(.center)
+                .padding(.top)
+        }
+    }
+
+}