Added room timeline screen with live events listening and back pagination. Rearranged project files.

2026-11-04 19:11:45 +00:00 · 2022-03-08 14:24:33 +02:00
parent f403c59b95
commit c22d9689d4
77 changed files with 1269 additions and 491 deletions
@@ -0,0 +1,85 @@
+// 
+// Copyright 2021 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import SwiftUI
+
+struct RoomScreen: View {
+    
+    let timelineBottomDividerIdentifier = "TimelineBottomDividerIdentifier"
+    
+    @ObservedObject var context: RoomScreenViewModel.Context
+    @State var backPaginationMessageIdentifier: String?
+    
+    var body: some View {
+        ScrollViewReader { reader in
+            List {
+                if backPaginationMessageIdentifier != nil {
+                    HStack {
+                        Spacer()
+                        ProgressView()
+                        Spacer()
+                    }
+                } else {
+                    Rectangle()
+                        .onAppear {
+                            let _ = MXLog.debug("Request load previous page")
+                            backPaginationMessageIdentifier = context.viewState.messages.first?.id
+                            context.send(viewAction: .loadPreviousPage)
+                        }
+                        .frame(height: 0.0)
+                }
+                ForEach(context.viewState.messages) { message in
+                    VStack(alignment: .leading) {
+                        HStack {
+                            Text(message.sender)
+                            Spacer()
+                            Text(message.timestamp)
+                        }
+                        .font(.footnote)
+                        Text(message.text)
+                    }
+                    .listRowSeparator(.hidden)
+                }
+                
+                Divider()
+                    .id(timelineBottomDividerIdentifier)
+                    .listRowSeparator(.hidden)
+            }
+            .listStyle(.plain)
+            .onAppear {
+                reader.scrollTo(timelineBottomDividerIdentifier, anchor: .bottom)
+            }
+            .onChange(of: context.viewState.messages) { _ in
+                if backPaginationMessageIdentifier != nil {
+                    self.backPaginationMessageIdentifier = nil
+                    return
+                }
+                
+                reader.scrollTo(timelineBottomDividerIdentifier, anchor: .bottom)
+            }
+        }
+    }
+}
+
+// MARK: - Previews
+
+struct RoomScreen_Previews: PreviewProvider {
+    static var previews: some View {
+        let viewModel = RoomScreenViewModel(roomProxy: MockRoomProxy(displayName: "Test"),
+                                            timelineController: MockRoomTimelineController())
+        RoomScreen(context: viewModel.context)
+    }
+}