"View only" polls in the timeline (#1399)

* Add stub methods in RoomTimelineItemFactory

* Add PollRoomTimelineView and PollEndRoomTimelineView

* Add timeline skeleton

* Start poll mapping

* Add comment

* Refine poll UI

* Add feature flags for polls

* Cleanup

* Delete poll end event

* Refine poll mapping

* Refine poll layout

* Reuse FormRowAccessory

* Refine poll bubble layout

* Localise strings

* Update project

* Refine poll preview

* Map poll properties

ElementX/Sources/Screens/RoomScreen/View/Style/TimelineItemBubbledStylerView.swift

@@ -196,8 +196,6 @@ struct TimelineItemBubbledStylerView<Content: View>: View {
         case .vertical:
             GridRow {
                 localizedSendInfo
-                    .padding(.bottom, 4)
-                    .padding(.trailing, 4)
                     .gridColumnAlignment(.trailing)
             }
         }
@@ -284,7 +282,7 @@ struct TimelineItemBubbledStylerView<Content: View>: View {
 }
 
 private extension View {
-    func bubbleStyle(insets: CGFloat, color: Color? = nil, cornerRadius: CGFloat = 12, corners: UIRectCorner) -> some View {
+    func bubbleStyle(insets: EdgeInsets, color: Color? = nil, cornerRadius: CGFloat = 12, corners: UIRectCorner) -> some View {
         padding(insets)
             .background(color)
             .cornerRadius(cornerRadius, corners: corners)
@@ -293,18 +291,18 @@ private extension View {
 
 // Describes how the content and the send info should be arranged inside a bubble
 private enum BubbleSendInfoLayoutType {
-    case horizontal
-    case vertical
+    case horizontal(spacing: CGFloat = 4)
+    case vertical(spacing: CGFloat = 4)
     case overlay(capsuleStyle: Bool)
 
     var layout: AnyLayout {
         let layout: any Layout
 
         switch self {
-        case .horizontal:
-            layout = HStackLayout(alignment: .bottom, spacing: 4)
-        case .vertical:
-            layout = GridLayout(alignment: .leading, verticalSpacing: 4)
+        case .horizontal(let spacing):
+            layout = HStackLayout(alignment: .bottom, spacing: spacing)
+        case .vertical(let spacing):
+            layout = GridLayout(alignment: .leading, verticalSpacing: spacing)
         case .overlay:
             layout = ZStackLayout(alignment: .bottomTrailing)
         }
@@ -329,23 +327,25 @@ private extension EventBasedTimelineItemProtocol {
 
     // The insets for the full bubble content.
     // Padding affecting just the "send info" should be added inside `layoutedLocalizedSendInfo`
-    var bubbleInsets: CGFloat {
-        let defaultPadding: CGFloat = 8
+    var bubbleInsets: EdgeInsets {
+        let defaultInsets: EdgeInsets = .init(around: 8)
 
         switch self {
         case is ImageRoomTimelineItem,
              is VideoRoomTimelineItem,
              is StickerRoomTimelineItem:
-            return 0
+            return .zero
+        case is PollRoomTimelineItem:
+            return .init(top: 12, leading: 12, bottom: 4, trailing: 12)
         case let locationTimelineItem as LocationRoomTimelineItem:
-            return locationTimelineItem.content.geoURI == nil ? defaultPadding : 0
+            return locationTimelineItem.content.geoURI == nil ? defaultInsets : .zero
         default:
-            return defaultPadding
+            return defaultInsets
         }
     }
 
     var bubbleSendInfoLayoutType: BubbleSendInfoLayoutType {
-        let defaultTimestampLayout: BubbleSendInfoLayoutType = .horizontal
+        let defaultTimestampLayout: BubbleSendInfoLayoutType = .horizontal()
 
         switch self {
         case is TextBasedRoomTimelineItem:
@@ -356,6 +356,8 @@ private extension EventBasedTimelineItemProtocol {
             return .overlay(capsuleStyle: true)
         case let locationTimelineItem as LocationRoomTimelineItem:
             return .overlay(capsuleStyle: locationTimelineItem.content.geoURI != nil)
+        case is PollRoomTimelineItem:
+            return .vertical(spacing: 16)
         default:
             return defaultTimestampLayout
         }
@@ -415,3 +417,11 @@ struct TimelineItemBubbledStylerView_Previews: PreviewProvider {
         .environmentObject(viewModel.context)
     }
 }
+
+private extension EdgeInsets {
+    init(around: CGFloat) {
+        self.init(top: around, leading: around, bottom: around, trailing: around)
+    }
+
+    static var zero: Self = .init(around: 0)
+}

ElementX/Sources/Screens/RoomScreen/View/Timeline/PollOptionView.swift

@@ -0,0 +1,68 @@
+//
+// Copyright 2023 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 PollOptionView: View {
+    let pollOption: Poll.Option
+
+    var body: some View {
+        HStack(alignment: .top, spacing: 8) {
+            FormRowAccessory(kind: .multipleSelection(isSelected: pollOption.isSelected))
+
+            VStack(spacing: 10) {
+                HStack(alignment: .lastTextBaseline) {
+                    Text(pollOption.text)
+                        .frame(maxWidth: .infinity, alignment: .leading)
+
+                    Text(L10n.commonPollVotesCount(pollOption.votes))
+                        .font(.compound.bodySM)
+                        .foregroundColor(.compound.textSecondary)
+                }
+
+                progressView
+            }
+        }
+    }
+
+    // MARK: - Private
+
+    private var progressView: some View {
+        ProgressView(value: Double(pollOption.votes) / Double(pollOption.allVotes))
+            .progressViewStyle(LinearProgressViewStyle(tint: .compound.textPrimary))
+    }
+}
+
+struct PollOptionView_Previews: PreviewProvider {
+    static var previews: some View {
+        VStack {
+            Group {
+                PollOptionView(pollOption: .init(id: "1",
+                                                 text: "Italian 🇮🇹",
+                                                 votes: 1,
+                                                 allVotes: 10,
+                                                 isSelected: true))
+
+                PollOptionView(pollOption: .init(id: "2",
+                                                 text: "Chinese 🇨🇳",
+                                                 votes: 9,
+                                                 allVotes: 10,
+                                                 isSelected: false))
+            }
+            .padding()
+        }
+    }
+}

ElementX/Sources/Screens/RoomScreen/View/Timeline/PollRoomTimelineView.swift

@@ -0,0 +1,91 @@
+//
+// Copyright 2023 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 PollRoomTimelineView: View {
+    let timelineItem: PollRoomTimelineItem
+    @Environment(\.timelineStyle) var timelineStyle
+
+    var body: some View {
+        TimelineStyler(timelineItem: timelineItem) {
+            VStack(alignment: .leading, spacing: 16) {
+                questionView
+
+                ForEach(poll.options, id: \.id) { option in
+                    Button { } label: {
+                        PollOptionView(pollOption: option)
+                    }
+                }
+            }
+            .frame(maxWidth: 450)
+        }
+    }
+
+    // MARK: - Private
+
+    private var poll: Poll {
+        timelineItem.poll
+    }
+
+    private var questionView: some View {
+        HStack(spacing: 4) {
+            Image(Asset.Images.equalizer.name)
+
+            Text(poll.question)
+                .font(.compound.bodyLGSemibold)
+        }
+    }
+}
+
+struct PollRoomTimelineView_Previews: PreviewProvider {
+    static let viewModel = RoomScreenViewModel.mock
+
+    static var previews: some View {
+        PollRoomTimelineView(timelineItem: .init(id: .random,
+                                                 poll: .mock,
+                                                 body: "Foo",
+                                                 timestamp: "Now",
+                                                 isOutgoing: false,
+                                                 isEditable: false,
+                                                 sender: .init(id: "Bob"),
+                                                 properties: .init()))
+            .environment(\.timelineStyle, .bubbles)
+            .environmentObject(viewModel.context)
+            .previewDisplayName("Poll bubble style")
+
+        PollRoomTimelineView(timelineItem: .init(id: .random,
+                                                 poll: .mock,
+                                                 body: "Foo",
+                                                 timestamp: "Now",
+                                                 isOutgoing: false,
+                                                 isEditable: false,
+                                                 sender: .init(id: "Bob"),
+                                                 properties: .init()))
+            .environment(\.timelineStyle, .plain)
+            .environmentObject(viewModel.context)
+            .previewDisplayName("Poll plain style")
+    }
+}
+
+private extension Poll {
+    static let mock: Self = .init(question: "Do you like polls?",
+                                  pollKind: .disclosed,
+                                  maxSelections: 1,
+                                  options: [.init(id: "1", text: "Yes", votes: 1, allVotes: 3, isSelected: true), .init(id: "2", text: "No", votes: 2, allVotes: 3, isSelected: false)],
+                                  votes: [:],
+                                  endDate: nil)
+}