| 1 | import SwiftUI |
| 2 | |
| 3 | /// Shared native chat history and composer. History stays visible while the |
| 4 | /// signaling stream reconnects; only sending depends on current admission. |
| 5 | @MainActor public struct ChatView: View { |
| 6 | @ObservedObject private var call: Call |
| 7 | @StateObject private var draft: ChatDraft |
| 8 | |
| 9 | public init(call: Call, draft: ChatDraft? = nil) { |
| 10 | self.call = call |
| 11 | _draft = StateObject(wrappedValue: draft ?? ChatDraft()) |
| 12 | } |
| 13 | |
| 14 | public var body: some View { |
| 15 | VStack(alignment: .leading, spacing: 12) { |
| 16 | ScrollViewReader { proxy in |
| 17 | ScrollView { |
| 18 | VStack(alignment: .leading, spacing: 8) { |
| 19 | if call.chat.isEmpty { |
| 20 | Text("Messages sent during this call appear here.") |
| 21 | .foregroundStyle(.secondary) |
| 22 | } |
| 23 | ForEach(Array(call.chat.enumerated()), id: \.offset) { _, line in |
| 24 | Text(line).textSelection(.enabled) |
| 25 | .padding(10).frame(maxWidth: .infinity, alignment: .leading) |
| 26 | .background(.quaternary.opacity(0.5), in: RoundedRectangle(cornerRadius: 10)) |
| 27 | } |
| 28 | Color.clear.frame(height: 1).id("chat-bottom") |
| 29 | }.frame(maxWidth: .infinity, alignment: .leading) |
| 30 | } |
| 31 | .accessibilityIdentifier("chatHistory") |
| 32 | .defaultScrollAnchor(.bottom) |
| 33 | .onAppear { proxy.scrollTo("chat-bottom", anchor: .bottom) } |
| 34 | .onChange(of: call.chat) { _, _ in |
| 35 | proxy.scrollTo("chat-bottom", anchor: .bottom) |
| 36 | } |
| 37 | } |
| 38 | if call.reconnecting { |
| 39 | Text("Reconnecting. You can send again when the call reconnects.") |
| 40 | .font(.footnote).foregroundStyle(.secondary) |
| 41 | } |
| 42 | HStack { |
| 43 | TextField("Message to everyone", text: $draft.text) |
| 44 | .textFieldStyle(.roundedBorder) |
| 45 | .accessibilityIdentifier("chatComposer") |
| 46 | .onSubmit(send) |
| 47 | Button("Send", systemImage: "arrow.up.circle.fill", action: send) |
| 48 | .buttonStyle(.borderedProminent) |
| 49 | .disabled(draft.text.isEmpty || call.state?.phase != "admitted") |
| 50 | } |
| 51 | } |
| 52 | } |
| 53 | |
| 54 | private func send() { |
| 55 | guard call.state?.phase == "admitted" else { return } |
| 56 | if call.sendChat(draft.text) { draft.text = "" } |
| 57 | } |
| 58 | } |
| 59 | |
amadan