Add images carousel

Vernissage/CoreData/StatusData+CoreDataProperties.swift

@@ -39,8 +39,7 @@ extension StatusData {
     @NSManaged public var uri: String?
     @NSManaged public var url: URL?
     @NSManaged public var visibility: String
-    @NSManaged public var attachmentRelation: NSSet?
-
+    @NSManaged public var attachmentRelation: Set<AttachmentData>?
 }
 
 // MARK: Generated accessors for attachmentRelation
@@ -63,3 +62,9 @@ extension StatusData {
 extension StatusData : Identifiable {
 
 }
+
+extension StatusData {
+    func attachments() -> [AttachmentData] {
+        return Array(self.attachmentRelation ?? [])
+    }
+}

Vernissage/Vernissage.xcdatamodeld/Vernissage.xcdatamodel/contents

@@ -26,7 +26,7 @@
     </entity>
     <entity name="AttachmentData" representedClassName="AttachmentData" syncable="YES">
         <attribute name="blurhash" optional="YES" attributeType="String"/>
-        <attribute name="data" attributeType="Binary"/>
+        <attribute name="data" attributeType="Binary" allowsExternalBinaryDataStorage="YES"/>
         <attribute name="id" attributeType="String"/>
         <attribute name="previewUrl" optional="YES" attributeType="URI"/>
         <attribute name="remoteUrl" optional="YES" attributeType="URI"/>

Vernissage/Views/DetailsView.swift

@@ -6,19 +6,28 @@
 
 import SwiftUI
 import MastodonSwift
+import AVFoundation
 
 struct DetailsView: View {
     @Environment(\.dismiss) private var dismiss
+
     @State public var statusData: StatusData
+    @State private var height: Double = 0.0
     
     var body: some View {
         ScrollView {
             VStack (alignment: .leading) {
-                if let attachmentData = statusData.attachmentRelation?.first(where: { elemet in true}) as? AttachmentData {
-                    Image(uiImage: UIImage(data: attachmentData.data)!)
-                        .resizable().aspectRatio(contentMode: .fit)
-                        .frame(maxWidth: .infinity)
+                TabView {
+                    ForEach(statusData.attachments(), id: \.self) { attachment in
+                        if let image = UIImage(data: attachment.data) {
+                            Image(uiImage: image)
+                                .resizable()
+                                .aspectRatio(contentMode: .fit)
+                        }
+                    }
                 }
+                .frame(height: CGFloat(self.height))
+                .tabViewStyle(PageTabViewStyle())
                 
                 VStack(alignment: .leading) {
                     HStack (alignment: .center) {
@@ -88,6 +97,26 @@ struct DetailsView: View {
             }
         }
         .navigationBarTitle("Details")
+        .onAppear {
+            self.calculateImageHeight()
+        }
+    }
+    
+    private func calculateImageHeight() {
+        var imageHeight = 0.0
+        var imageWidth = 0.0
+        
+        for item in statusData.attachments() {
+            if let image = UIImage(data: item.data) {
+                if image.size.height > imageHeight {
+                    imageHeight = image.size.height
+                    imageWidth = image.size.width
+                }
+            }
+        }
+        
+        let divider = imageWidth / UIScreen.main.bounds.size.width
+        self.height = imageHeight / divider
     }
 }
 

Vernissage/Views/HomeFeedView.swift

@@ -3,7 +3,6 @@
 //  Copyright © 2022 Marcin Czachurski and the repository contributors.
 //  Licensed under the MIT License.
 //
-    
 
 import SwiftUI
 import MastodonSwift
@@ -25,14 +24,16 @@ struct HomeFeedView: View {
         ZStack {
             ScrollView {
                 LazyVGrid(columns: gridColumns) {
-                    ForEach(dbStatuses) { item in
+                    ForEach(dbStatuses, id: \.self) { item in
                         NavigationLink(destination: DetailsView(statusData: item)) {
-                            if let attachmenData = item.attachmentRelation?.first(where: { element in true }) as? AttachmentData,
+                            if let attachmenData = item.attachmentRelation?.first,
                                let uiImage = UIImage(data: attachmenData.data) {
                                 
                                 ZStack {
                                     Image(uiImage: uiImage)
-                                        .resizable().aspectRatio(contentMode: .fit)
+                                        .resizable()
+                                        .aspectRatio(contentMode: .fit)
+
                                     if let count = item.attachmentRelation?.count, count > 1 {
                                         VStack(alignment:.trailing) {
                                             Spacer()
@@ -68,22 +69,6 @@ struct HomeFeedView: View {
                 }
             }
             
-            VStack(alignment:.trailing) {
-                Spacer()
-                HStack {
-                    Spacer()
-                    Button {
-                        
-                    } label: {
-                        Image(systemName: "plus")
-                            .font(.body)
-                            .padding(16)
-                            .foregroundColor(.white)
-                            .background(.ultraThinMaterial, in: Circle())
-                    }
-                }
-            }.padding()
-            
             if showLoading {
                 ProgressView()
                     .progressViewStyle(CircularProgressViewStyle())