native macOS codings agent orchestrator
Merge pull request #133 from onevcat/align-ghostty-accessibility
Align embedded Ghostty accessibility with Ghostty.app
+146
-3
+119
-3
supacode/Infrastructure/Ghostty/GhosttySurfaceView.swift
+119
-3
supacode/Infrastructure/Ghostty/GhosttySurfaceView.swift
···
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let length: UInt64
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}
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private final class CachedValue<T> {
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private var value: T?
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private let fetch: () -> T
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private let duration: Duration
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private var expiryTask: Task<Void, Never>?
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init(duration: Duration, fetch: @escaping () -> T) {
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self.duration = duration
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self.fetch = fetch
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}
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deinit {
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expiryTask?.cancel()
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}
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func get() -> T {
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if let value {
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return value
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}
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let fetched = fetch()
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value = fetched
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expiryTask?.cancel()
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expiryTask = Task { [weak self] in
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guard let self else { return }
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try? await ContinuousClock().sleep(for: self.duration)
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guard !Task.isCancelled else { return }
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self.value = nil
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self.expiryTask = nil
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}
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return fetched
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}
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}
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private let runtime: GhosttyRuntime
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let id = UUID()
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let bridge: GhosttySurfaceBridge
···
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private var eventMonitor: Any?
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private var notificationObservers: [NSObjectProtocol] = []
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private var prevPressureStage: Int = 0
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private lazy var cachedScreenContents = CachedValue<String>(duration: .milliseconds(500)) {
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[weak self] in
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self?.readScreenContents() ?? ""
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}
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var passwordInput: Bool = false {
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didSet {
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let input = SecureInput.shared
···
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normalized.removeLast()
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}
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return normalized
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}
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static func accessibilityLine(for index: Int, in content: String) -> Int {
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let clampedIndex = min(max(index, 0), content.count)
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let prefix = String(content.prefix(clampedIndex))
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return max(0, prefix.components(separatedBy: .newlines).count - 1)
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}
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static func accessibilityString(for range: NSRange, in content: String) -> String? {
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guard let swiftRange = Range(range, in: content) else { return nil }
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return String(content[swiftRange])
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}
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override var acceptsFirstResponder: Bool { true }
···
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}
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override func accessibilityRole() -> NSAccessibility.Role? {
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// De facto role used by terminal emulators; AppKit doesn't provide a named constant for it.
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NSAccessibility.Role(rawValue: "AXTerminal")
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// Match Ghostty.app so speech/input tools can treat the surface as editable text.
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.textArea
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}
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override func accessibilityLabel() -> String? {
···
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}
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override func accessibilityValue() -> Any? {
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bridge.state.pwd
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cachedScreenContents.get()
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}
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override func accessibilityHelp() -> String? {
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accessibilityPaneIndexHelp
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}
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override func accessibilitySelectedTextRange() -> NSRange {
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selectedRange()
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}
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override func accessibilitySelectedText() -> String? {
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guard let surface else { return nil }
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var text = ghostty_text_s()
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guard ghostty_surface_read_selection(surface, &text) else { return nil }
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defer { ghostty_surface_free_text(surface, &text) }
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let value = String(cString: text.text)
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return value.isEmpty ? nil : value
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}
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override func accessibilityNumberOfCharacters() -> Int {
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cachedScreenContents.get().count
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}
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override func accessibilityVisibleCharacterRange() -> NSRange {
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let content = cachedScreenContents.get()
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return NSRange(location: 0, length: content.count)
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}
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override func accessibilityLine(for index: Int) -> Int {
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Self.accessibilityLine(for: index, in: cachedScreenContents.get())
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}
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override func accessibilityString(for range: NSRange) -> String? {
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Self.accessibilityString(for: range, in: cachedScreenContents.get())
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}
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override func accessibilityAttributedString(for range: NSRange) -> NSAttributedString? {
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guard let surface else { return nil }
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guard let plainString = accessibilityString(for: range) else { return nil }
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var attributes: [NSAttributedString.Key: Any] = [:]
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if let fontRaw = ghostty_surface_quicklook_font(surface) {
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let font = Unmanaged<CTFont>.fromOpaque(fontRaw)
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attributes[.font] = font.takeUnretainedValue()
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font.release()
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}
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return NSAttributedString(string: plainString, attributes: attributes)
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}
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override func becomeFirstResponder() -> Bool {
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let result = super.becomeFirstResponder()
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if result {
···
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} else {
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NSAccessibility.post(element: self, notification: .focusedUIElementChanged)
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}
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}
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private func readScreenContents() -> String {
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guard let surface else { return "" }
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var text = ghostty_text_s()
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let selection = ghostty_selection_s(
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top_left: ghostty_point_s(
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tag: GHOSTTY_POINT_SCREEN,
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coord: GHOSTTY_POINT_COORD_TOP_LEFT,
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x: 0,
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y: 0
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),
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bottom_right: ghostty_point_s(
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tag: GHOSTTY_POINT_SCREEN,
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coord: GHOSTTY_POINT_COORD_BOTTOM_RIGHT,
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x: 0,
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y: 0
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),
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rectangle: false
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)
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guard ghostty_surface_read_text(surface, selection, &text) else { return "" }
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defer { ghostty_surface_free_text(surface, &text) }
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return String(cString: text.text)
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}
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override func keyDown(with event: NSEvent) {
+27
supacodeTests/GhosttySurfaceViewTests.swift
+27
supacodeTests/GhosttySurfaceViewTests.swift
···
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import Foundation
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import Testing
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@testable import supacode
···
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@Test func normalizedWorkingDirectoryPathKeepsRootPath() {
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#expect(GhosttySurfaceView.normalizedWorkingDirectoryPath("/") == "/")
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}
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@Test func accessibilityLineCountsLineBreaksUpToIndex() {
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let content = "alpha\nbeta\ngamma"
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#expect(GhosttySurfaceView.accessibilityLine(for: 0, in: content) == 0)
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#expect(GhosttySurfaceView.accessibilityLine(for: 5, in: content) == 0)
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#expect(GhosttySurfaceView.accessibilityLine(for: 6, in: content) == 1)
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#expect(GhosttySurfaceView.accessibilityLine(for: content.count, in: content) == 2)
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}
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@Test func accessibilityStringReturnsSubstringForValidRange() {
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let content = "alpha\nbeta"
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#expect(
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GhosttySurfaceView.accessibilityString(
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for: NSRange(location: 6, length: 4),
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in: content
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) == "beta"
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)
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#expect(
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GhosttySurfaceView.accessibilityString(
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for: NSRange(location: 99, length: 1),
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in: content
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) == nil
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)
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}
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}