From 7c97841d07d4a596508f663c887d1f67d105faf6 Mon Sep 17 00:00:00 2001
From: Ariver <shanghai3168@gmail.com>
Date: Wed, 20 May 2026 13:07:20 +0800
Subject: [PATCH] perf: reduce launcher scroll and search jank

---
 Apptag/ApptagApp.swift |  304 ++++++++++++++++++++++++++++++++++++++++++++------
 1 files changed, 268 insertions(+), 36 deletions(-)

diff --git a/Apptag/ApptagApp.swift b/Apptag/ApptagApp.swift
index daf5d45..a0487fd 100644
--- a/Apptag/ApptagApp.swift
+++ b/Apptag/ApptagApp.swift
@@ -29,16 +29,23 @@
 
 final class AppDelegate: NSObject, NSApplicationDelegate {
     private static let showDockIconKey = "showDockIcon"
+    private static let statusItemAutosaveName = "com.apptag.launcher.statusItem"
+    private static let statusItemButtonIdentifier = NSUserInterfaceItemIdentifier("TagLauncherStatusItemButton")
+    private static let statusItemAccessibilityLabel = "TagLauncher"
     private static let showAppListMenuItemIdentifier = NSUserInterfaceItemIdentifier("TagLauncherShowAppListMenuItem")
-    private static let showAppListShortcutGlyphs = "⌥⇧␣"
     private static let overlayDefaultLevel = NSWindow.Level(rawValue: Int(CGWindowLevelForKey(.maximumWindow)))
     private static let overlayTextInputLevel = NSWindow.Level.modalPanel
 
     private var statusItem: NSStatusItem?
     private var overlayWindow: NSWindow?
     private var overlayKeyMonitor: Any?
+    private var quickSearchExternalMouseMonitor: Any?
     private var settingsWindow: NSWindow?    // Track Settings window to keep it above overlay
-    private var hotkeyRef: EventHotKeyRef?
+    private var mainHotkeyRef: EventHotKeyRef?
+    private var quickSearchHotkeyRef: EventHotKeyRef?
+    private var hotkeyEventHandlerInstalled = false
+    private var isQuickSearchOpen = false
+    private var isModalInteractionActive = false
     private var isInEditMode = false  // Suppress auto-dismiss during editing
     private var isEditingAppNote = false
     private var isConfiguringApplicationMenu = false
@@ -58,11 +65,13 @@
         migrateDefaultGroupName()
         TagDatabase.seedDefaultTags()
         syncChromeSettings(force: true)
-        registerHotkey()
+        observeHotkeyStatusChanges()
+        registerConfiguredHotkeys()
         observeOtherWindows()
         observeSettingsClose()
         observeEditMode()
         observeAppNoteEditing()
+        observeQuickSearch()
         observePreferencesRequests()
         observeApplicationMenuChanges()
         observeChromeSettings()
@@ -79,6 +88,7 @@
 
     func applicationWillTerminate(_ notification: Notification) {
         TagDatabase.flushPendingCategorySchemeBackupBatch()
+        removeQuickSearchExternalMouseMonitor()
     }
 
     /// Ensure defaultGroupName is always the language-neutral key "Other".
@@ -192,12 +202,19 @@
     // MARK: - Menu Bar
 
     private func setupMenuBar() {
-        removeMenuBarItem()
-        statusItem = NSStatusBar.system.statusItem(withLength: NSStatusItem.squareLength)
+        if statusItem == nil {
+            statusItem = NSStatusBar.system.statusItem(withLength: NSStatusItem.squareLength)
+        } else {
+            statusItem?.length = NSStatusItem.squareLength
+        }
         guard let statusItem else { return }
+        statusItem.autosaveName = Self.statusItemAutosaveName
         statusItem.isVisible = true
 
         if let button = statusItem.button {
+            button.identifier = Self.statusItemButtonIdentifier
+            button.setAccessibilityIdentifier(Self.statusItemAutosaveName)
+            button.setAccessibilityLabel(Self.statusItemAccessibilityLabel)
             button.image = makeMenuBarIcon()
             button.imageScaling = .scaleProportionallyDown
             button.imagePosition = .imageOnly
@@ -323,7 +340,10 @@
     }
 
     private var showAppListMenuTitle: String {
-        "\(tr("menu.showAppList"))  \(Self.showAppListShortcutGlyphs)"
+        if LauncherHotkeyRegistrationStore.state(for: .main) == .failed {
+            return tr("menu.showShortcutUnavailable")
+        }
+        return "\(tr("menu.showAppList"))  \(LauncherHotkey.main.displayString)"
     }
 
     private func observeApplicationMenuChanges() {
@@ -492,33 +512,94 @@
         }
     }
 
-    private func showOverlay() {
+    private func showOverlay(initialQuickSearchSource: String? = nil) {
         // Use the screen under the mouse cursor — works in fullscreen spaces
         let mousePoint = NSEvent.mouseLocation
         guard let screen = NSScreen.screens.first(where: {
             NSMouseInRect(mousePoint, $0.frame, false)
         }) ?? NSScreen.main ?? NSScreen.screens.first else { return }
 
-        overlayWindow?.orderOut(nil)
-        overlayWindow = makeOverlayWindow(on: screen)
-        overlayWindow?.setFrame(screen.frame, display: true)
-        overlayWindow?.level = isEditingAppNote ? Self.overlayTextInputLevel : Self.overlayDefaultLevel
+        let window: NSWindow
+        if let existingWindow = overlayWindow {
+            window = existingWindow
+        } else {
+            window = makeOverlayWindow(on: screen, initialQuickSearchSource: initialQuickSearchSource)
+            overlayWindow = window
+        }
+
+        window.setFrame(screen.frame, display: true)
+        window.level = isEditingAppNote ? Self.overlayTextInputLevel : Self.overlayDefaultLevel
 
         installOverlayKeyMonitor()
 
-        overlayWindow?.makeKeyAndOrderFront(nil)
-        overlayWindow?.orderFrontRegardless()
+        if let initialQuickSearchSource {
+            NotificationCenter.default.post(
+                name: .tagLauncherQuickSearchRequested,
+                object: nil,
+                userInfo: ["source": initialQuickSearchSource]
+            )
+        }
+
+        window.makeKeyAndOrderFront(nil)
+        window.orderFrontRegardless()
+        NotificationCenter.default.post(name: .tagLauncherOverlayDidShow, object: nil)
     }
 
     private func installOverlayKeyMonitor() {
         guard overlayKeyMonitor == nil else { return }
         overlayKeyMonitor = NSEvent.addLocalMonitorForEvents(matching: .keyDown) { [weak self] event in
+            guard let self else { return event }
             if event.keyCode == 53 { // Escape
-                self?.hideOverlay()
+                if self.isQuickSearchOpen {
+                    NotificationCenter.default.post(name: .tagLauncherQuickSearchDismissRequested, object: nil)
+                    return nil
+                }
+                self.hideOverlay()
+                return nil
+            }
+            if self.shouldOpenQuickSearch(for: event) {
+                NotificationCenter.default.post(
+                    name: .tagLauncherQuickSearchRequested,
+                    object: nil,
+                    userInfo: ["source": QuickSearchOpenSource.mainOverlay]
+                )
                 return nil
             }
             return event
         }
+    }
+
+    private func shouldOpenQuickSearch(for event: NSEvent) -> Bool {
+        guard event.keyCode == UInt16(kVK_Space),
+              !event.isARepeat,
+              event.modifierFlags.intersection(.deviceIndependentFlagsMask).isEmpty,
+              overlayWindow?.isVisible == true,
+              !isQuickSearchOpen,
+              !isInEditMode,
+              !isEditingAppNote,
+              !isModalInteractionActive
+        else { return false }
+
+        guard let firstResponder = overlayWindow?.firstResponder else { return true }
+        if firstResponder is NSText || firstResponder is NSTextField {
+            return false
+        }
+        if let responderView = firstResponder as? NSView,
+           viewOrAncestorHandlesSpace(responderView) {
+            return false
+        }
+        return true
+    }
+
+    private func viewOrAncestorHandlesSpace(_ view: NSView) -> Bool {
+        var current: NSView? = view
+        while let candidate = current {
+            if candidate is NSButton || candidate is NSSegmentedControl || candidate is NSSlider {
+                return true
+            }
+            current = candidate.superview
+        }
+        return false
     }
 
     private func removeOverlayKeyMonitor() {
@@ -528,7 +609,7 @@
         }
     }
 
-    private func makeOverlayWindow(on screen: NSScreen) -> NSWindow {
+    private func makeOverlayWindow(on screen: NSScreen, initialQuickSearchSource: String? = nil) -> NSWindow {
         let panel = OverlayPanel(
             contentRect: screen.frame,
             styleMask: [.borderless, .fullSizeContentView, .nonactivatingPanel],
@@ -551,9 +632,12 @@
         panel.titleVisibility = .hidden
         panel.isReleasedWhenClosed = false
         panel.contentView = DismissibleHostingView(
-            rootView: ContentView(hideOverlay: { [weak self] in
-                self?.hideOverlay(force: true)
-            }),
+            rootView: ContentView(
+                hideOverlay: { [weak self] in
+                    self?.hideOverlay(force: true)
+                },
+                initialQuickSearchSource: initialQuickSearchSource
+            ),
             onBackdropTap: { [weak self] in
                 self?.hideOverlay()
             }
@@ -569,53 +653,91 @@
         }
         overlayWindow?.orderOut(nil)
         removeOverlayKeyMonitor()
+        removeQuickSearchExternalMouseMonitor()
+        NotificationCenter.default.post(name: .tagLauncherOverlayDidHide, object: nil)
         if force {
             overlayWindow = nil
         }
     }
 
-    // MARK: - Global Hotkey (Shift+Option+Space)
+    // MARK: - Global Hotkeys
 
-    /// Carbon RegisterEventHotKey. If it fails (sandbox, etc.), falls back to menu bar only.
-    private func registerHotkey() {
+    private func registerConfiguredHotkeys() {
+        installHotkeyEventHandlerIfNeeded()
+        registerFixedHotkey(.main)
+        registerFixedHotkey(.quickSearch)
+    }
+
+    private func registerFixedHotkey(_ kind: LauncherHotkeyKind) {
+        unregisterHotkey(for: kind)
+        let hotkey = kind.hotkey
+
         var hotkeyID = EventHotKeyID()
         hotkeyID.signature = OSType(0x41505447) // 'APTG'
-        hotkeyID.id = 1
+        hotkeyID.id = kind.eventID
 
-        let modifiers = UInt32(shiftKey | optionKey)
-
-        var ref: EventHotKeyRef?
+        var newRef: EventHotKeyRef?
         let status = RegisterEventHotKey(
-            UInt32(kVK_Space),
-            modifiers,
+            hotkey.keyCode,
+            hotkey.modifiers,
             hotkeyID,
             GetApplicationEventTarget(),
             0,
-            &ref
+            &newRef
         )
-        hotkeyRef = ref
 
-        if status != noErr {
-            print("[TagLauncher] Hotkey registration failed: \(status). Falling back to menu bar only.")
-            return
+        if status == noErr, let newRef {
+            setHotkeyRef(newRef, for: kind)
+            LauncherHotkeyRegistrationStore.setActive(for: kind)
+        } else {
+            setHotkeyRef(nil, for: kind)
+            LauncherHotkeyRegistrationStore.setFailed(status, for: kind)
+            print("[TagLauncher] Fixed hotkey registration failed for \(kind.rawValue): \(status)")
         }
+    }
+
+    private func observeHotkeyStatusChanges() {
+        NotificationCenter.default.addObserver(
+            forName: .tagLauncherHotkeyRegistrationChanged,
+            object: nil,
+            queue: .main
+        ) { [weak self] _ in
+            self?.setupMenuBar()
+            self?.configureApplicationMenuWhenAvailable(retries: 2)
+        }
+    }
+
+    private func installHotkeyEventHandlerIfNeeded() {
+        guard !hotkeyEventHandlerInstalled else { return }
+        hotkeyEventHandlerInstalled = true
 
         var eventSpec = EventTypeSpec(
             eventClass: OSType(kEventClassKeyboard),
             eventKind: UInt32(kEventHotKeyPressed)
         )
-
         let selfPtr = Unmanaged.passUnretained(self).toOpaque()
 
         InstallEventHandler(
             GetApplicationEventTarget(),
-            { (_, _, userData) -> OSStatus in
-                guard let userData else { return noErr }
+            { (_, event, userData) -> OSStatus in
+                guard let event, let userData else { return noErr }
+                var hotkeyID = EventHotKeyID()
+                let status = GetEventParameter(
+                    event,
+                    EventParamName(kEventParamDirectObject),
+                    EventParamType(typeEventHotKeyID),
+                    nil,
+                    MemoryLayout<EventHotKeyID>.size,
+                    nil,
+                    &hotkeyID
+                )
+                guard status == noErr else { return noErr }
+
                 let delegate = Unmanaged<AppDelegate>
                     .fromOpaque(userData)
                     .takeUnretainedValue()
                 DispatchQueue.main.async {
-                    delegate.toggleOverlay()
+                    delegate.handleHotkeyEvent(id: hotkeyID.id)
                 }
                 return noErr
             },
@@ -624,6 +746,40 @@
             selfPtr,
             nil
         )
+    }
+
+    private func handleHotkeyEvent(id: UInt32) {
+        if id == LauncherHotkeyKind.quickSearch.eventID {
+            showQuickSearchFromGlobalHotkey()
+        } else {
+            toggleOverlay()
+        }
+    }
+
+    private func showQuickSearchFromGlobalHotkey() {
+        guard overlayWindow?.isVisible != true else { return }
+        showOverlay(initialQuickSearchSource: QuickSearchOpenSource.globalHidden)
+    }
+
+    private func hotkeyRef(for kind: LauncherHotkeyKind) -> EventHotKeyRef? {
+        switch kind {
+        case .main: return mainHotkeyRef
+        case .quickSearch: return quickSearchHotkeyRef
+        }
+    }
+
+    private func setHotkeyRef(_ ref: EventHotKeyRef?, for kind: LauncherHotkeyKind) {
+        switch kind {
+        case .main: mainHotkeyRef = ref
+        case .quickSearch: quickSearchHotkeyRef = ref
+        }
+    }
+
+    private func unregisterHotkey(for kind: LauncherHotkeyKind) {
+        if let ref = hotkeyRef(for: kind) {
+            UnregisterEventHotKey(ref)
+            setHotkeyRef(nil, for: kind)
+        }
     }
 
     // MARK: - Preferences
@@ -762,6 +918,58 @@
         }
     }
 
+    private func observeQuickSearch() {
+        NotificationCenter.default.addObserver(
+            forName: .tagLauncherQuickSearchVisibilityChanged,
+            object: nil,
+            queue: .main
+        ) { [weak self] notification in
+            guard let self else { return }
+            self.isQuickSearchOpen = (notification.userInfo?["active"] as? Bool) ?? false
+            if self.isQuickSearchOpen {
+                self.installQuickSearchExternalMouseMonitor()
+            } else {
+                self.removeQuickSearchExternalMouseMonitor()
+            }
+        }
+
+        NotificationCenter.default.addObserver(
+            forName: .tagLauncherModalInteractionChanged,
+            object: nil,
+            queue: .main
+        ) { [weak self] notification in
+            self?.isModalInteractionActive = (notification.userInfo?["active"] as? Bool) ?? false
+        }
+
+        NotificationCenter.default.addObserver(
+            forName: NSApplication.didResignActiveNotification,
+            object: NSApp,
+            queue: .main
+        ) { [weak self] _ in
+            guard self?.isQuickSearchOpen == true else { return }
+            NotificationCenter.default.post(name: .tagLauncherQuickSearchDismissRequested, object: nil)
+        }
+    }
+
+    private func installQuickSearchExternalMouseMonitor() {
+        guard quickSearchExternalMouseMonitor == nil else { return }
+        quickSearchExternalMouseMonitor = NSEvent.addGlobalMonitorForEvents(
+            matching: [.leftMouseDown, .rightMouseDown, .otherMouseDown]
+        ) { [weak self] _ in
+            DispatchQueue.main.async {
+                guard self?.isQuickSearchOpen == true else { return }
+                NotificationCenter.default.post(name: .tagLauncherQuickSearchDismissRequested, object: nil)
+            }
+        }
+    }
+
+    private func removeQuickSearchExternalMouseMonitor() {
+        if let quickSearchExternalMouseMonitor {
+            NSEvent.removeMonitor(quickSearchExternalMouseMonitor)
+            self.quickSearchExternalMouseMonitor = nil
+        }
+    }
+
     private func updateOverlayLevelForTextInput() {
         guard let overlayWindow else { return }
         overlayWindow.level = isEditingAppNote ? Self.overlayTextInputLevel : Self.overlayDefaultLevel
@@ -819,15 +1027,25 @@
 
 final class DismissibleHostingView<Content: View>: NSHostingView<Content> {
     private let onBackdropTap: () -> Void
+    private var suppressBackdropDismiss = false
+    private var modalInteractionObserver: NSObjectProtocol?
 
     @MainActor required init(rootView: Content) {
         self.onBackdropTap = {}
         super.init(rootView: rootView)
+        observeModalInteractionChanges()
     }
 
     init(rootView: Content, onBackdropTap: @escaping () -> Void) {
         self.onBackdropTap = onBackdropTap
         super.init(rootView: rootView)
+        observeModalInteractionChanges()
+    }
+
+    deinit {
+        if let modalInteractionObserver {
+            NotificationCenter.default.removeObserver(modalInteractionObserver)
+        }
     }
 
     @available(*, unavailable)
@@ -840,6 +1058,10 @@
             return
         }
         if hit == self {
+            if suppressBackdropDismiss {
+                super.mouseDown(with: event)
+                return
+            }
             onBackdropTap()
             return
         }
@@ -862,6 +1084,16 @@
         super.mouseDown(with: event)
     }
 
+    private func observeModalInteractionChanges() {
+        modalInteractionObserver = NotificationCenter.default.addObserver(
+            forName: .tagLauncherModalInteractionChanged,
+            object: nil,
+            queue: .main
+        ) { [weak self] notification in
+            self?.suppressBackdropDismiss = (notification.userInfo?["active"] as? Bool) ?? false
+        }
+    }
+
     private func findTextFieldContainer(in view: NSView) -> TextFieldContainer? {
         if let container = view as? TextFieldContainer { return container }
         for sub in view.subviews {

--
Gitblit v1.9.3