Files
Sybil-2/ios/Apps/SybilMacQuickQuestion/Sources/MacQuickQuestionPlugin.swift
T

230 lines
9.8 KiB
Swift

import AppKit
import Carbon
// AppKit is unavailable to Catalyst targets. This native bundle uses only
// public AppKit/Carbon APIs and communicates with the client through Foundation.
@MainActor
@objc(SybilMacQuickQuestionPlugin)
final class MacQuickQuestionPlugin: NSObject, SybilQuickQuestionPanelBridging, NSWindowDelegate {
private weak var delegate: (any SybilQuickQuestionPanelDelegate)?
private var panel: QuickQuestionPanel?
private var panelView: QuickQuestionPanelView?
private var hotKey: EventHotKeyRef?
private var eventHandler: EventHandlerRef?
private var outsideClickMonitor: Any?
private var hotKeyState = SybilQuickQuestionHotKeyState()
private var isDismissing = false
private var shortcutAvailable = false
private var windowlessActivity: NSObjectProtocol?
private var latestState = SybilQuickQuestionPanelState()
private var previousApplication: NSRunningApplication?
required override init() {
super.init()
}
var isVisible: Bool { panel?.isVisible == true }
func start(delegate: any SybilQuickQuestionPanelDelegate) -> Int32 {
self.delegate = delegate
if windowlessActivity == nil {
// Keep the hotkey service alive with no windows. This option does
// not prevent sleep/App Nap or intercept an explicit Quit command.
windowlessActivity = ProcessInfo.processInfo.beginActivity(
options: .automaticTerminationDisabled,
reason: "Quick Question global shortcut"
)
}
guard eventHandler == nil else { return noErr }
var eventTypes = [
EventTypeSpec(eventClass: OSType(kEventClassKeyboard), eventKind: UInt32(kEventHotKeyPressed)),
EventTypeSpec(eventClass: OSType(kEventClassKeyboard), eventKind: UInt32(kEventHotKeyReleased))
]
let context = Unmanaged.passUnretained(self).toOpaque()
let handlerStatus = InstallEventHandler(
GetApplicationEventTarget(),
{ _, event, context in
guard let event, let context else { return OSStatus(eventNotHandledErr) }
var identifier = EventHotKeyID()
let status = GetEventParameter(
event, EventParamName(kEventParamDirectObject), EventParamType(typeEventHotKeyID),
nil, MemoryLayout<EventHotKeyID>.size, nil, &identifier
)
guard status == noErr, identifier.signature == 0x53595151, identifier.id == 1 else {
return OSStatus(eventNotHandledErr)
}
let isKeyDown = GetEventKind(event) == UInt32(kEventHotKeyPressed)
let plugin = Unmanaged<MacQuickQuestionPlugin>.fromOpaque(context).takeUnretainedValue()
// Application event handlers run on the main event loop.
MainActor.assumeIsolated {
if plugin.hotKeyState.shouldToggle(isKeyDown: isKeyDown) {
plugin.delegate?.quickQuestionToggleRequested()
}
}
return noErr
},
eventTypes.count, &eventTypes, context, &eventHandler
)
guard handlerStatus == noErr else { return handlerStatus }
let status = RegisterEventHotKey(
UInt32(kVK_Space), UInt32(optionKey),
EventHotKeyID(signature: 0x53595151, id: 1),
GetApplicationEventTarget(), 0, &hotKey
)
shortcutAvailable = status == noErr
return status
}
func updateState(_ data: Data) {
guard let state = try? JSONDecoder().decode(SybilQuickQuestionPanelState.self, from: data) else { return }
// Updating a background request must not create a non-hosting window.
// The controller creates/orders the panel only after UIKit is foreground.
latestState = state
panelView?.update(state, shortcutAvailable: shortcutAvailable)
if isVisible { resizePanel() }
}
func show() {
createPanelIfNeeded()
guard let panel, let panelView else { return }
panelView.update(latestState, shortcutAvailable: shortcutAvailable)
let screen = NSScreen.screens.first { $0.frame.contains(NSEvent.mouseLocation) } ?? NSScreen.main
let visibleFrame = screen?.visibleFrame ?? NSRect(x: 0, y: 0, width: 1280, height: 800)
let width = min(680, visibleFrame.width - 48)
panel.setContentSize(NSSize(width: width, height: 240))
panelView.layoutSubtreeIfNeeded()
let height = min(panelView.preferredHeight, visibleFrame.height - 64)
let top = visibleFrame.maxY - min(visibleFrame.height * 0.18, 160)
let y = max(visibleFrame.minY + 24, top - height)
panel.setFrame(NSRect(x: visibleFrame.midX - width / 2, y: y, width: width, height: height), display: true)
// The controller has verified UIKit foreground readiness. A
// nonactivating panel can then take focus without raising a workspace.
panel.makeKeyAndOrderFront(nil)
panel.makeFirstResponder(panelView.promptView)
panelView.preparePromptForPresentation()
installOutsideClickMonitor()
}
func hide() {
dismissPanel(restoringPreviousApplication: true)
}
func activateForQuickQuestion() {
if let frontmost = NSWorkspace.shared.frontmostApplication,
frontmost != NSRunningApplication.current {
previousApplication = frontmost
}
// Do not order a window here. Catalyst must finish its own foreground
// transition before the controller calls show().
NSApp.activate()
}
func activateMainWindow() {
// An explicit Open in Chat/Open Sybil action keeps focus in Sybil.
previousApplication = nil
NSApp.activate()
NSApp.windows.first { $0 !== panel && $0.canBecomeMain }?.makeKeyAndOrderFront(nil)
}
private func dismissPanel(restoringPreviousApplication: Bool) {
guard !isDismissing else { return }
let wasVisible = isVisible
isDismissing = true
if wasVisible { panel?.orderOut(nil) }
removeOutsideClickMonitor()
isDismissing = false
let applicationToRestore = previousApplication
previousApplication = nil
if restoringPreviousApplication, NSApp.isActive,
let applicationToRestore, !applicationToRestore.isTerminated {
NSApp.yieldActivation(to: applicationToRestore)
applicationToRestore.activate(options: [])
}
if wasVisible { delegate?.quickQuestionPanelDismissed() }
}
func stop() {
previousApplication = nil
hide()
removeOutsideClickMonitor()
if let hotKey { UnregisterEventHotKey(hotKey) }
if let eventHandler { RemoveEventHandler(eventHandler) }
hotKey = nil
eventHandler = nil
hotKeyState = SybilQuickQuestionHotKeyState()
if let windowlessActivity {
ProcessInfo.processInfo.endActivity(windowlessActivity)
}
windowlessActivity = nil
delegate = nil
}
func windowDidResignKey(_ notification: Notification) {
// Focus is already moving to a window/app the user chose.
dismissPanel(restoringPreviousApplication: false)
}
private func createPanelIfNeeded() {
guard panel == nil else { return }
let panel = QuickQuestionPanel(
contentRect: NSRect(x: 0, y: 0, width: 680, height: 240),
styleMask: [.borderless, .nonactivatingPanel], backing: .buffered, defer: false
)
panel.title = "Quick Question"
panel.level = .floating
panel.collectionBehavior = [.canJoinAllSpaces, .fullScreenAuxiliary, .transient, .ignoresCycle]
panel.isFloatingPanel = true
panel.hidesOnDeactivate = false
panel.becomesKeyOnlyIfNeeded = false
panel.worksWhenModal = true
panel.isReleasedWhenClosed = false
panel.isOpaque = false
panel.backgroundColor = .clear
panel.hasShadow = true
panel.isMovableByWindowBackground = true
panel.appearance = NSAppearance(named: .darkAqua)
panel.delegate = self
panel.onDismiss = { [weak self] in self?.hide() }
let view = QuickQuestionPanelView()
view.delegate = delegate
view.onDismiss = { [weak self] in self?.hide() }
panel.contentView = view
panelView = view
self.panel = panel
}
private func resizePanel() {
guard let panel, let panelView else { return }
panelView.layoutSubtreeIfNeeded()
let visibleFrame = panel.screen?.visibleFrame ?? panel.frame
let height = min(panelView.preferredHeight, visibleFrame.height - 64)
guard abs(height - panel.frame.height) > 1 else { return }
var frame = panel.frame
frame.origin.y = max(visibleFrame.minY + 24, frame.maxY - height)
frame.size.height = height
panel.setFrame(frame, display: true)
}
private func installOutsideClickMonitor() {
guard outsideClickMonitor == nil else { return }
// Mouse-only monitoring does not require Accessibility or Input
// Monitoring permission. No global keyboard event tap is installed.
outsideClickMonitor = NSEvent.addGlobalMonitorForEvents(matching: [.leftMouseDown, .rightMouseDown]) { [weak self] _ in
Task { @MainActor [weak self] in self?.hide() }
}
}
private func removeOutsideClickMonitor() {
if let outsideClickMonitor { NSEvent.removeMonitor(outsideClickMonitor) }
outsideClickMonitor = nil
}
}
@MainActor
private final class QuickQuestionPanel: NSPanel {
var onDismiss: (() -> Void)?
override var canBecomeKey: Bool { true }
override var canBecomeMain: Bool { false }
override func cancelOperation(_ sender: Any?) { onDismiss?() }
}