From 8478c55e513bbbb4b1676d1d9207f7feb2509465 Mon Sep 17 00:00:00 2001
From: Ariver <shanghai3168@gmail.com>
Date: Fri, 22 May 2026 00:30:57 +0800
Subject: [PATCH] Freeze 7.6.0 release candidate and move docs out of repo

---
 Apptag/ApptagApp.swift |  386 ++++++++++++++++++++++++++++++++++++++++++++++++------
 1 files changed, 341 insertions(+), 45 deletions(-)

diff --git a/Apptag/ApptagApp.swift b/Apptag/ApptagApp.swift
index 72a1665..c030bc6 100644
--- a/Apptag/ApptagApp.swift
+++ b/Apptag/ApptagApp.swift
@@ -29,23 +29,53 @@
 
 final class AppDelegate: NSObject, NSApplicationDelegate {
     private static let showDockIconKey = "showDockIcon"
-    private static let statusItemAutosaveName = "com.apptag.launcher.statusItem"
+    private static let statusItemAutosaveName = AppIdentity.statusItemAutosaveName
     private static let statusItemButtonIdentifier = NSUserInterfaceItemIdentifier("TagLauncherStatusItemButton")
-    private static let statusItemAccessibilityLabel = "TagLauncher"
+    private static let statusItemAccessibilityLabel = AppIdentity.displayName
     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 static let overlayDefaultLevel = NSWindow.Level.normal
+    private static let overlayTextInputLevel = NSWindow.Level.normal
 
     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
     private var lastShowDockIcon: Bool?
+
+    private var isOverlayVisible: Bool {
+        overlayWindow?.isVisible == true
+    }
+
+    private var isSettingsVisible: Bool {
+        settingsWindow?.isVisible == true
+    }
+
+    private var requiresForegroundOwnership: Bool {
+        isOverlayVisible || isSettingsVisible
+    }
+
+    private var currentOverlayLevel: NSWindow.Level {
+        if isEditingAppNote || isQuickSearchOpen {
+            return Self.overlayTextInputLevel
+        }
+        return Self.overlayDefaultLevel
+    }
+
+    private func overlayLevel(initialQuickSearchSource: String? = nil) -> NSWindow.Level {
+        if initialQuickSearchSource != nil {
+            return Self.overlayTextInputLevel
+        }
+        return currentOverlayLevel
+    }
 
     static func refreshChromeSettings() {
         (NSApp.delegate as? AppDelegate)?.syncChromeSettings(force: true)
@@ -61,11 +91,13 @@
         migrateDefaultGroupName()
         TagDatabase.seedDefaultTags()
         syncChromeSettings(force: true)
-        registerHotkey()
+        observeHotkeyStatusChanges()
+        registerConfiguredHotkeys()
         observeOtherWindows()
         observeSettingsClose()
         observeEditMode()
         observeAppNoteEditing()
+        observeQuickSearch()
         observePreferencesRequests()
         observeApplicationMenuChanges()
         observeChromeSettings()
@@ -81,7 +113,12 @@
     }
 
     func applicationWillTerminate(_ notification: Notification) {
+        hideOverlay(force: true, discardWindow: true)
+        unregisterHotkey(for: .main)
+        unregisterHotkey(for: .quickSearch)
         TagDatabase.flushPendingCategorySchemeBackupBatch()
+        removeOverlayKeyMonitor()
+        removeQuickSearchExternalMouseMonitor()
     }
 
     /// Ensure defaultGroupName is always the language-neutral key "Other".
@@ -117,13 +154,59 @@
         let dockChanged = lastShowDockIcon != showDock
 
         if force || dockChanged {
-            NSApp.setActivationPolicy(showDock ? .regular : .accessory)
             lastShowDockIcon = showDock
+            refreshLauncherChromeState()
         }
 
         if force {
             setupMenuBar()
         }
+    }
+
+    private func beginLauncherForegroundOwnership(activate: Bool = true) {
+        if NSApp.activationPolicy() != .regular {
+            NSApp.setActivationPolicy(.regular)
+        }
+        if activate {
+            NSApp.activate(ignoringOtherApps: true)
+            configureApplicationMenuWhenAvailable(retries: 4)
+        }
+    }
+
+    private func refreshLauncherChromeState(activate: Bool = false) {
+        let showDock = UserDefaults.standard.bool(forKey: Self.showDockIconKey)
+        lastShowDockIcon = showDock
+
+        let desiredPolicy: NSApplication.ActivationPolicy = requiresForegroundOwnership
+            ? .regular
+            : (showDock ? .regular : .accessory)
+        if NSApp.activationPolicy() != desiredPolicy {
+            NSApp.setActivationPolicy(desiredPolicy)
+        }
+
+        let desiredPresentation: NSApplication.PresentationOptions = isOverlayVisible ? [.hideDock] : []
+        if NSApp.presentationOptions != desiredPresentation {
+            NSApp.presentationOptions = desiredPresentation
+        }
+
+        if activate && requiresForegroundOwnership {
+            NSApp.activate(ignoringOtherApps: true)
+            configureApplicationMenuWhenAvailable(retries: 4)
+        }
+    }
+
+    private func handleApplicationDidResignActive() {
+        if isQuickSearchOpen {
+            NotificationCenter.default.post(name: .tagLauncherQuickSearchDismissRequested, object: nil)
+        }
+
+        guard isOverlayVisible else {
+            refreshLauncherChromeState()
+            return
+        }
+
+        // Once another app takes the menu bar, don't leave the overlay stranded onscreen.
+        hideOverlay(force: true)
     }
 
     /// Keep app chrome in sync when language changes from any entry point.
@@ -139,7 +222,7 @@
 
     // MARK: - Launch at Login (LaunchAgent, zero permissions)
 
-    private static let launchAgentLabel = "com.apptag.launcher"
+    private static let launchAgentLabel = AppIdentity.launchAgentLabel
     static var supportsLaunchAtLogin: Bool {
         ProcessInfo.processInfo.environment["APP_SANDBOX_CONTAINER_ID"] == nil
     }
@@ -333,7 +416,10 @@
     }
 
     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() {
@@ -496,13 +582,13 @@
 
     @objc private func toggleOverlay() {
         if overlayWindow?.isVisible == true {
-            hideOverlay()
+            hideOverlay(force: true)
         } else {
             showOverlay()
         }
     }
 
-    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: {
@@ -510,32 +596,113 @@
         }) ?? NSScreen.main ?? NSScreen.screens.first else { return }
 
         let window: NSWindow
+        let createdWindow: Bool
         if let existingWindow = overlayWindow {
             window = existingWindow
+            createdWindow = false
         } else {
-            window = makeOverlayWindow(on: screen)
+            window = makeOverlayWindow(on: screen, initialQuickSearchSource: initialQuickSearchSource)
             overlayWindow = window
+            createdWindow = true
         }
 
-        window.setFrame(screen.frame, display: true)
-        window.level = isEditingAppNote ? Self.overlayTextInputLevel : Self.overlayDefaultLevel
-
         installOverlayKeyMonitor()
+        beginLauncherForegroundOwnership()
+
+        let targetFrame = screen.frame
+        let targetLevel = overlayLevel(initialQuickSearchSource: initialQuickSearchSource)
+        let canReuseVisibleWindow = !createdWindow
+            && window.isVisible
+            && NSEqualRects(window.frame, targetFrame)
+            && window.level == targetLevel
+
+        if canReuseVisibleWindow {
+            if !window.isKeyWindow {
+                window.makeKeyAndOrderFront(nil)
+            }
+            refreshLauncherChromeState(activate: true)
+            if let initialQuickSearchSource {
+                NotificationCenter.default.post(
+                    name: .tagLauncherQuickSearchRequested,
+                    object: nil,
+                    userInfo: ["source": initialQuickSearchSource]
+                )
+            }
+            return
+        }
+
+        window.setFrame(targetFrame, display: true)
+        window.level = targetLevel
+
+        if let initialQuickSearchSource, !createdWindow {
+            NotificationCenter.default.post(
+                name: .tagLauncherQuickSearchRequested,
+                object: nil,
+                userInfo: ["source": initialQuickSearchSource]
+            )
+        }
 
         window.makeKeyAndOrderFront(nil)
         window.orderFrontRegardless()
+        refreshLauncherChromeState(activate: true)
         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(force: true)
+                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() {
@@ -545,10 +712,10 @@
         }
     }
 
-    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],
+            styleMask: [.borderless, .fullSizeContentView],
             backing: .buffered,
             defer: false
         )
@@ -568,9 +735,12 @@
         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()
             }
@@ -578,7 +748,7 @@
         return panel
     }
 
-    private func hideOverlay(force: Bool = false) {
+    private func hideOverlay(force: Bool = false, discardWindow: Bool = false) {
         guard force || !isInEditMode else { return }
         TagDatabase.flushPendingCategorySchemeBackupBatch()
         if let settingsWindow, settingsWindow.parent == overlayWindow {
@@ -586,54 +756,92 @@
         }
         overlayWindow?.orderOut(nil)
         removeOverlayKeyMonitor()
+        removeQuickSearchExternalMouseMonitor()
+        refreshLauncherChromeState()
         NotificationCenter.default.post(name: .tagLauncherOverlayDidHide, object: nil)
-        if force {
+        if discardWindow {
             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
             },
@@ -642,6 +850,40 @@
             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
@@ -700,6 +942,7 @@
         window.makeKeyAndOrderFront(nil)
         window.orderFrontRegardless()
         settingsWindow = window
+        refreshLauncherChromeState(activate: true)
     }
 
     private func attachSettingsWindow(_ window: NSWindow, to overlayWindow: NSWindow) {
@@ -753,6 +996,7 @@
             else { return }
             self.detachSettingsWindow(closingWindow)
             self.settingsWindow = nil
+            self.refreshLauncherChromeState()
         }
     }
 
@@ -767,7 +1011,7 @@
         }
     }
 
-    /// Lower the overlay while editing app notes so IME candidate windows are not hidden behind it.
+    /// Lower the overlay while text input is active so IME and cursor services are not hidden behind it.
     private func observeAppNoteEditing() {
         NotificationCenter.default.addObserver(
             forName: .tagLauncherAppNoteEditingChanged,
@@ -780,9 +1024,61 @@
         }
     }
 
+    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
+            self.updateOverlayLevelForTextInput()
+            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
+            self?.handleApplicationDidResignActive()
+        }
+    }
+
+    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
+        overlayWindow.level = currentOverlayLevel
         if let settingsWindow, settingsWindow.parent == overlayWindow {
             settingsWindow.level = overlayWindow.level
         }
@@ -801,12 +1097,12 @@
 
     @objc private func openPreferences() {
         TagDatabase.flushPendingCategorySchemeBackupBatch()
+        beginLauncherForegroundOwnership()
         // Don't hide overlay — keep it visible for real-time setting preview.
         if let overlayWindow, overlayWindow.isVisible {
             overlayWindow.makeKeyAndOrderFront(nil)
             overlayWindow.orderFrontRegardless()
         }
-        NSApp.activate(ignoringOtherApps: true)
 
         if let settingsWindow {
             prepareSettingsWindow(settingsWindow)

--
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