ios: send from software keyboard

ios/Packages/Sybil/Sources/Sybil/SybilChatTranscriptView.swift

@@ -15,7 +15,7 @@ struct SybilChatTranscriptView: View {
     var body: some View {
         ScrollViewReader { proxy in
             ScrollView {
-                LazyVStack(alignment: .leading, spacing: 24) {
+                LazyVStack(alignment: .leading, spacing: 26) {
                     if isLoading && messages.isEmpty {
                         Text("Loading messages…")
                             .font(.sybil(.footnote))
@@ -113,13 +113,11 @@ private struct MessageBubble: View {
                         Markdown(message.content)
                             .tint(SybilTheme.primary)
                             .foregroundStyle(isUser ? SybilTheme.text : SybilTheme.text.opacity(0.95))
-                            .markdownTextStyle {
-                                FontSize(15)
-                            }
+                            .markdownTheme(.sybilReadable)
                     }
                 }
                 .padding(.horizontal, isUser ? 14 : 2)
-                .padding(.vertical, isUser ? 11 : 2)
+                .padding(.vertical, isUser ? 13 : 2)
                 .background(
                     Group {
                         if isUser {
@@ -224,6 +222,7 @@ private struct ToolCallActivityChip: View {
                 Text(summary)
                     .font(.sybil(.subheadline))
                     .foregroundStyle(isFailed ? SybilTheme.danger.opacity(0.96) : SybilTheme.text.opacity(0.94))
+                    .lineSpacing(3)
                     .fixedSize(horizontal: false, vertical: true)
 
                 HStack(spacing: 6) {

ios/Packages/Sybil/Sources/Sybil/SybilMarkdownTheme.swift

@@ -0,0 +1,164 @@
+import MarkdownUI
+import SwiftUI
+
+@MainActor
+extension Theme {
+    static let sybilReadable: Theme = {
+        SybilFontRegistry.registerIfNeeded()
+
+        return Theme()
+            .text {
+                FontFamily(.custom("Inter"))
+                FontSize(15)
+            }
+            .code {
+                FontFamilyVariant(.monospaced)
+                FontSize(.em(0.88))
+                BackgroundColor(SybilTheme.surfaceStrong.opacity(0.78))
+            }
+            .strong {
+                FontWeight(.semibold)
+            }
+            .link {
+                ForegroundColor(SybilTheme.accent)
+            }
+            .heading1 { configuration in
+                configuration.label
+                    .fixedSize(horizontal: false, vertical: true)
+                    .relativeLineSpacing(.em(0.18))
+                    .markdownMargin(top: .em(1.1), bottom: .em(0.5))
+                    .markdownTextStyle {
+                        FontWeight(.semibold)
+                        FontSize(.em(1.45))
+                    }
+            }
+            .heading2 { configuration in
+                configuration.label
+                    .fixedSize(horizontal: false, vertical: true)
+                    .relativeLineSpacing(.em(0.18))
+                    .markdownMargin(top: .em(1.0), bottom: .em(0.45))
+                    .markdownTextStyle {
+                        FontWeight(.semibold)
+                        FontSize(.em(1.25))
+                    }
+            }
+            .heading3 { configuration in
+                configuration.label
+                    .fixedSize(horizontal: false, vertical: true)
+                    .relativeLineSpacing(.em(0.18))
+                    .markdownMargin(top: .em(0.9), bottom: .em(0.4))
+                    .markdownTextStyle {
+                        FontWeight(.semibold)
+                        FontSize(.em(1.12))
+                    }
+            }
+            .heading4 { configuration in
+                configuration.label
+                    .fixedSize(horizontal: false, vertical: true)
+                    .relativeLineSpacing(.em(0.18))
+                    .markdownMargin(top: .em(0.85), bottom: .em(0.35))
+                    .markdownTextStyle {
+                        FontWeight(.semibold)
+                    }
+            }
+            .heading5 { configuration in
+                configuration.label
+                    .fixedSize(horizontal: false, vertical: true)
+                    .relativeLineSpacing(.em(0.18))
+                    .markdownMargin(top: .em(0.8), bottom: .em(0.35))
+                    .markdownTextStyle {
+                        FontWeight(.semibold)
+                        FontSize(.em(0.92))
+                    }
+            }
+            .heading6 { configuration in
+                configuration.label
+                    .fixedSize(horizontal: false, vertical: true)
+                    .relativeLineSpacing(.em(0.18))
+                    .markdownMargin(top: .em(0.8), bottom: .em(0.35))
+                    .markdownTextStyle {
+                        FontWeight(.semibold)
+                        FontSize(.em(0.86))
+                    }
+            }
+            .paragraph { configuration in
+                configuration.label
+                    .fixedSize(horizontal: false, vertical: true)
+                    .relativeLineSpacing(.em(0.36))
+                    .markdownMargin(top: .zero, bottom: .em(0.82))
+            }
+            .blockquote { configuration in
+                HStack(alignment: .top, spacing: 10) {
+                    RoundedRectangle(cornerRadius: 2)
+                        .fill(SybilTheme.primary.opacity(0.55))
+                        .frame(width: 3)
+                    configuration.label
+                        .markdownTextStyle {
+                            ForegroundColor(SybilTheme.textMuted)
+                        }
+                }
+                .fixedSize(horizontal: false, vertical: true)
+                .markdownMargin(top: .em(0.25), bottom: .em(0.9))
+            }
+            .codeBlock { configuration in
+                ScrollView(.horizontal) {
+                    configuration.label
+                        .fixedSize(horizontal: false, vertical: true)
+                        .relativeLineSpacing(.em(0.28))
+                        .markdownTextStyle {
+                            FontFamilyVariant(.monospaced)
+                            FontSize(.em(0.88))
+                        }
+                        .padding(12)
+                }
+                .background(
+                    RoundedRectangle(cornerRadius: 10)
+                        .fill(SybilTheme.surfaceStrong.opacity(0.82))
+                )
+                .overlay(
+                    RoundedRectangle(cornerRadius: 10)
+                        .stroke(SybilTheme.border.opacity(0.72), lineWidth: 1)
+                )
+                .markdownMargin(top: .em(0.2), bottom: .em(1))
+            }
+            .list { configuration in
+                configuration.label
+                    .fixedSize(horizontal: false, vertical: true)
+                    .markdownMargin(top: .em(0.08), bottom: .em(0.78))
+            }
+            .listItem { configuration in
+                configuration.label
+                    .markdownMargin(top: .em(0.28))
+            }
+            .table { configuration in
+                configuration.label
+                    .fixedSize(horizontal: false, vertical: true)
+                    .markdownTableBorderStyle(.init(color: SybilTheme.border.opacity(0.85)))
+                    .markdownTableBackgroundStyle(
+                        .alternatingRows(
+                            SybilTheme.surface.opacity(0.72),
+                            SybilTheme.surfaceStrong.opacity(0.62)
+                        )
+                    )
+                    .markdownMargin(top: .em(0.2), bottom: .em(1))
+            }
+            .tableCell { configuration in
+                configuration.label
+                    .markdownTextStyle {
+                        if configuration.row == 0 {
+                            FontWeight(.semibold)
+                        }
+                        BackgroundColor(nil)
+                    }
+                    .fixedSize(horizontal: false, vertical: true)
+                    .relativeLineSpacing(.em(0.30))
+                    .padding(.vertical, 7)
+                    .padding(.horizontal, 11)
+            }
+            .thematicBreak {
+                Divider()
+                    .overlay(SybilTheme.border.opacity(0.82))
+                    .markdownMargin(top: .em(1.2), bottom: .em(1.2))
+            }
+    }()
+}

ios/Packages/Sybil/Sources/Sybil/SybilSearchResultsView.swift

@@ -97,9 +97,7 @@ struct SybilSearchResultsView: View {
                 Markdown(answer)
                     .tint(SybilTheme.primary)
                     .foregroundStyle(SybilTheme.text)
-                    .markdownTextStyle {
-                        FontSize(15)
-                    }
+                    .markdownTheme(.sybilReadable)
             }
 
             if let answerError = search?.answerError, !answerError.isEmpty {
@@ -180,6 +178,7 @@ private struct SearchResultCard: View {
                         Text(result.title.orEmpty.orFallback(result.url))
                             .font(.sybil(.headline))
                             .foregroundStyle(SybilTheme.primary.opacity(0.96))
+                            .lineSpacing(2)
                             .multilineTextAlignment(.leading)
                     }
                     .buttonStyle(.plain)
@@ -187,6 +186,7 @@ private struct SearchResultCard: View {
                     Text(result.title.orEmpty.orFallback(result.url))
                         .font(.sybil(.headline))
                         .foregroundStyle(SybilTheme.primary.opacity(0.96))
+                        .lineSpacing(2)
                 }
                 
                 if let date = result.publishedDate, !date.isEmpty {
@@ -202,6 +202,7 @@ private struct SearchResultCard: View {
                 Text(result.url)
                     .font(.sybil(.footnote))
                     .foregroundStyle(SybilTheme.text.opacity(0.92))
+                    .lineSpacing(2)
                     .lineLimit(3)
                     .textSelection(.enabled)
                 
@@ -210,6 +211,7 @@ private struct SearchResultCard: View {
                         Text("• \(highlight)")
                             .font(.sybil(.caption))
                             .foregroundStyle(SybilTheme.textMuted)
+                            .lineSpacing(2)
                             .fixedSize(horizontal: false, vertical: true)
                     }
                 }

ios/Packages/Sybil/Sources/Sybil/SybilWorkspaceView.swift

@@ -1,5 +1,6 @@
 import Observation
 import SwiftUI
+import UIKit
 
 struct SybilWorkspaceView: View {
     @Bindable var viewModel: SybilViewModel
@@ -216,19 +217,23 @@ struct SybilWorkspaceView: View {
 
     private var composerBar: some View {
         HStack(alignment: .bottom, spacing: 10) {
-            TextField(
-                viewModel.isSearchMode ? "Search the web" : "Message Sybil",
-                text: $viewModel.composer,
-                axis: .vertical
-            )
-            .focused($composerFocused)
-            .textInputAutocapitalization(.sentences)
-            .autocorrectionDisabled(false)
-            .lineLimit(1 ... 6)
-            .submitLabel(.send)
-            .onSubmit {
-                Task {
-                    await viewModel.sendComposer()
+            ZStack(alignment: .topLeading) {
+                ComposerTextView(
+                    text: $viewModel.composer,
+                    isFocused: $composerFocused,
+                    isDisabled: viewModel.isSending
+                ) {
+                    Task {
+                        await viewModel.sendComposer()
+                    }
+                }
+                .frame(minHeight: 24, maxHeight: 132)
+
+                if viewModel.composer.isEmpty {
+                    Text(viewModel.isSearchMode ? "Search the web" : "Message Sybil")
+                        .font(.body)
+                        .foregroundStyle(SybilTheme.textMuted.opacity(0.72))
+                        .allowsHitTesting(false)
                 }
             }
             .padding(.horizontal, 12)
@@ -278,3 +283,91 @@ struct SybilWorkspaceView: View {
         )
     }
 }
+
+private struct ComposerTextView: UIViewRepresentable {
+    @Binding var text: String
+    var isFocused: FocusState<Bool>.Binding
+    var isDisabled: Bool
+    var onSubmit: () -> Void
+
+    func makeUIView(context: Context) -> UITextView {
+        let textView = UITextView()
+        textView.delegate = context.coordinator
+        textView.backgroundColor = .clear
+        textView.font = .preferredFont(forTextStyle: .body)
+        textView.textColor = UIColor(SybilTheme.text)
+        textView.tintColor = UIColor(SybilTheme.primary)
+        textView.textContainerInset = .zero
+        textView.textContainer.lineFragmentPadding = 0
+        textView.isScrollEnabled = true
+        textView.alwaysBounceVertical = false
+        textView.keyboardDismissMode = .interactive
+        textView.returnKeyType = .send
+        textView.enablesReturnKeyAutomatically = true
+        textView.autocapitalizationType = .sentences
+        textView.autocorrectionType = .default
+        textView.setContentCompressionResistancePriority(.defaultLow, for: .horizontal)
+        return textView
+    }
+
+    func updateUIView(_ textView: UITextView, context: Context) {
+        context.coordinator.parent = self
+
+        if textView.text != text {
+            textView.text = text
+        }
+
+        textView.isEditable = !isDisabled
+        textView.alpha = isDisabled ? 0.74 : 1
+
+        if isFocused.wrappedValue, !textView.isFirstResponder {
+            textView.becomeFirstResponder()
+        } else if !isFocused.wrappedValue, textView.isFirstResponder {
+            textView.resignFirstResponder()
+        }
+    }
+
+    func sizeThatFits(_ proposal: ProposedViewSize, uiView: UITextView, context: Context) -> CGSize? {
+        let width = proposal.width ?? uiView.bounds.width
+        let fittingSize = uiView.sizeThatFits(
+            CGSize(width: width, height: CGFloat.greatestFiniteMagnitude)
+        )
+        return CGSize(width: width, height: min(max(fittingSize.height, 24), 132))
+    }
+
+    func makeCoordinator() -> Coordinator {
+        Coordinator(parent: self)
+    }
+
+    final class Coordinator: NSObject, UITextViewDelegate {
+        var parent: ComposerTextView
+
+        init(parent: ComposerTextView) {
+            self.parent = parent
+        }
+
+        func textViewDidChange(_ textView: UITextView) {
+            parent.text = textView.text
+        }
+
+        func textViewDidBeginEditing(_ textView: UITextView) {
+            parent.isFocused.wrappedValue = true
+        }
+
+        func textViewDidEndEditing(_ textView: UITextView) {
+            parent.isFocused.wrappedValue = false
+        }
+
+        func textView(
+            _ textView: UITextView,
+            shouldChangeTextIn range: NSRange,
+            replacementText replacement: String
+        ) -> Bool {
+            if replacement == "\n" {
+                parent.onSubmit()
+                return false
+            }
+            return true
+        }
+    }
+}