fix(swift-ios): remove composer line cap

apps/swift-ios/Features/Chat/FeatureComposerView.swift

@@ -198,7 +198,7 @@ struct FeatureComposerView: View {
  axis: .vertical
  )
  .font(T3Typography.composer)
- .lineLimit(1...7)
+ .modifier(FeatureComposerGrowingTextInput())
  .focused(focused)
  // Return is always editing input. Sending is deliberately button-only.
  .submitLabel(.return)
@@ -448,6 +448,23 @@ struct FeatureComposerView: View {
  }
 }
 
+struct FeatureComposerGrowingTextInput: ViewModifier {
+ static let maximumLineCount: Int? = nil
+
+ @ViewBuilder
+ func body(content: Content) -> some View {
+ if let maximumLineCount = Self.maximumLineCount {
+ content
+ .lineLimit(1...maximumLineCount)
+ .layoutPriority(1)
+ } else {
+ content
+ .lineLimit(1...)
+ .layoutPriority(1)
+ }
+ }
+}
+
 enum FeatureComposerCollapsePolicy {
  static func shouldCollapse(
  isFocused: Bool,

apps/swift-ios/Tests/FeatureTests/FeatureComposerPowerTests.swift

@@ -1,8 +1,70 @@
+import SwiftUI
 import Testing
 @testable import T3Code
 
 @Suite("Composer power features")
 struct FeatureComposerPowerTests {
+ @MainActor
+ @Test
+ func composerTextInputGrowsBeyondThreeLinesWithoutANumericCap() {
+ #expect(FeatureComposerGrowingTextInput.maximumLineCount == nil)
+
+ let threeLineHeight = composerHeight(lineCount: 3)
+ let tenLineHeight = composerHeight(lineCount: 10)
+ let elevenLineHeight = composerHeight(lineCount: 11)
+ let thirtyLineHeight = composerHeight(lineCount: 30)
+ let measuredLineHeight = elevenLineHeight - tenLineHeight
+
+ #expect(thirtyLineHeight > threeLineHeight + (measuredLineHeight * 20))
+ }
+
+ @MainActor
+ @Test
+ func composerTextInputYieldsToTheAvailableViewportForVeryTallDrafts() {
+ let viewportHeight: CGFloat = 500
+
+ #expect(composerHeight(lineCount: 100, maximumHeight: viewportHeight) <= viewportHeight)
+ }
+
+ @MainActor
+ private func composerHeight(
+ lineCount: Int,
+ maximumHeight: CGFloat = .greatestFiniteMagnitude
+ ) -> CGFloat {
+ let text = Array(repeating: "A full visible prompt line", count: lineCount)
+ .joined(separator: "\n")
+ let controller = UIHostingController(
+ rootView: ComposerHarness(text: text)
+ .frame(width: 320)
+ )
+
+ return controller.sizeThatFits(
+ in: CGSize(width: 320, height: maximumHeight)
+ ).height
+ }
+
+ private struct ComposerHarness: View {
+ let text: String
+
+ @FocusState private var focused: Bool
+
+ var body: some View {
+ FeatureComposerView(
+ text: .constant(text),
+ selection: .constant(nil),
+ attachments: .constant([]),
+ providers: [],
+ threadSelection: nil,
+ isSending: false,
+ isWorking: false,
+ focused: $focused,
+ onSend: {},
+ onStop: {},
+ forceExpanded: true
+ )
+ }
+ }
+
  @Test
  func detectsCommandsModelsSkillsAndPathsAtTheCursor() {
  #expect(

apps/swift-ios/Tests/FeatureTests/HomeThreadMetadataTests.swift

@@ -130,7 +130,9 @@ struct HomeThreadMetadataTests {
  path: "/work/t3code"
  ),
  ],
- providers: [FeatureProvider(id: "claude", name: "Claude")]
+ providersByEnvironment: [
+ "device": [FeatureProvider(id: "claude", name: "Claude")],
+ ]
  )
 
  #expect(thread.homeEnvironmentLabel(in: snapshot) == "steambox")
@@ -162,9 +164,11 @@ struct HomeThreadMetadataTests {
  ),
  ],
  threads: [knownThread, customThread],
- providers: [
- FeatureProvider(id: "work-claude", name: "Claude Code", driver: "custom"),
- FeatureProvider(id: "acme-agent", name: "Acme Agent", driver: "custom"),
+ providersByEnvironment: [
+ "device": [
+ FeatureProvider(id: "work-claude", name: "Claude Code", driver: "custom"),
+ FeatureProvider(id: "acme-agent", name: "Acme Agent", driver: "custom"),
+ ],
  ]
  )