From d13e673115da89982bc29d1868b022afc062b801 Mon Sep 17 00:00:00 2001
From: Ariver <shanghai3168@gmail.com>
Date: Sun, 24 May 2026 13:54:28 +0800
Subject: [PATCH] Add automatic language mode and localized help menu

---
 Apptag/ApptagApp.swift |  115 ++++++++++++++++++++++++++++++++++++++++++++++++++++-----
 1 files changed, 105 insertions(+), 10 deletions(-)

diff --git a/Apptag/ApptagApp.swift b/Apptag/ApptagApp.swift
index e11a479..a4b4f7a 100644
--- a/Apptag/ApptagApp.swift
+++ b/Apptag/ApptagApp.swift
@@ -43,6 +43,8 @@
     private static let statusItemButtonIdentifier = NSUserInterfaceItemIdentifier("TagLauncherStatusItemButton")
     private static let statusItemAccessibilityLabel = AppIdentity.displayName
     private static let showAppListMenuItemIdentifier = NSUserInterfaceItemIdentifier("TagLauncherShowAppListMenuItem")
+    private static let helpMenuItemIdentifier = NSUserInterfaceItemIdentifier("TagLauncherHelpMenu")
+    private static let downloadHelpMenuItemIdentifier = NSUserInterfaceItemIdentifier("TagLauncherDownloadHelpMenuItem")
     private static let externalActivationNotification = Notification.Name("TagLauncherExternalActivationRequested")
     private static let externalActivationObject = AppIdentity.bundleIdentifier
     private static let launcherOverlayLevel = NSWindow.Level(rawValue: NSWindow.Level.mainMenu.rawValue - 1)
@@ -258,13 +260,18 @@
         }
     }
 
-    private func refreshLauncherChromeState(activate: Bool = false) {
+    private func refreshLauncherChromeState(activate: Bool = false, avoidSpaceSwitch: Bool = false) {
         let showDock = UserDefaults.standard.bool(forKey: Self.showDockIconKey)
         lastShowDockIcon = showDock
 
-        let desiredPolicy: NSApplication.ActivationPolicy = requiresForegroundOwnership
+        let shouldStayAccessoryForCurrentFullscreenSpace = avoidSpaceSwitch
+            && isOverlayVisible
+            && !isSettingsVisible
+        let desiredPolicy: NSApplication.ActivationPolicy = shouldStayAccessoryForCurrentFullscreenSpace
+            ? .accessory
+            : (requiresForegroundOwnership
             ? .regular
-            : (showDock ? .regular : .accessory)
+            : (showDock ? .regular : .accessory))
         if NSApp.activationPolicy() != desiredPolicy {
             NSApp.setActivationPolicy(desiredPolicy)
         }
@@ -274,7 +281,7 @@
             NSApp.presentationOptions = desiredPresentation
         }
 
-        if activate && requiresForegroundOwnership {
+        if activate && requiresForegroundOwnership && !shouldStayAccessoryForCurrentFullscreenSpace {
             let keyWindow = isSettingsVisible ? settingsWindow : (isOverlayVisible ? overlayWindow : nil)
             claimLauncherForeground(
                 keyWindow: keyWindow,
@@ -585,7 +592,7 @@
             }
 
             self.configureApplicationMenu()
-            self.removeHelpMenu()
+            self.configureHelpMenu()
             if retries > 0 && self.applicationMenuNeedsCleanup() {
                 self.configureApplicationMenuWhenAvailable(retries: retries - 1)
             }
@@ -704,12 +711,12 @@
         }
     }
 
-    private func removeHelpMenu() {
+    private func configureHelpMenu() {
         guard let mainMenu = NSApp.mainMenu else { return }
         NSApp.helpMenu = nil
 
         for item in mainMenu.items.reversed() {
-            let isHelpMenu = item.submenu === NSApp.helpMenu
+            let isHelpMenu = item.identifier == Self.helpMenuItemIdentifier
                 || item.title.localizedCaseInsensitiveContains("help")
                 || item.title == tr("menu.help")
                 || item.submenu?.title.localizedCaseInsensitiveContains("help") == true
@@ -718,6 +725,26 @@
                 mainMenu.removeItem(item)
             }
         }
+
+        let menuItem = NSMenuItem(title: tr("menu.help"), action: nil, keyEquivalent: "")
+        let helpMenu = NSMenu(title: tr("menu.help"))
+        menuItem.identifier = Self.helpMenuItemIdentifier
+        menuItem.submenu = helpMenu
+
+        let downloadItem = NSMenuItem()
+        downloadItem.identifier = Self.downloadHelpMenuItemIdentifier
+        downloadItem.title = tr("help.downloadPDF")
+        downloadItem.action = #selector(openLocalizedHelp(_:))
+        downloadItem.target = self
+        downloadItem.keyEquivalent = ""
+        downloadItem.keyEquivalentModifierMask = []
+        downloadItem.isEnabled = true
+        helpMenu.addItem(downloadItem)
+        mainMenu.addItem(menuItem)
+    }
+
+    @objc private func openLocalizedHelp(_ sender: Any? = nil) {
+        NSWorkspace.shared.open(HelpDocument.currentURL)
     }
 
     private func removeMenuBarItem() {
@@ -749,10 +776,12 @@
     }
 
     private func showOrFocusOverlay(preferredScreen: NSScreen? = nil) {
+        let placement = overlayPlacementContextForNextOverlay(preferredScreen: preferredScreen)
+        let shouldAvoidSpaceSwitch = placement.map { hasFullscreenWindowOnScreen($0.screen) } ?? false
         if let overlayWindow, overlayWindow.isVisible {
             moveOverlayToCurrentPlacement(preferredScreen: preferredScreen)
             overlayWindow.level = currentOverlayLevel
-            refreshLauncherChromeState(activate: true)
+            refreshLauncherChromeState(activate: !shouldAvoidSpaceSwitch, avoidSpaceSwitch: shouldAvoidSpaceSwitch)
             overlayWindow.makeKeyAndOrderFront(nil)
             overlayWindow.orderFrontRegardless()
             if let settingsWindow, settingsWindow.isVisible {
@@ -778,7 +807,8 @@
     ) {
         guard let placement = overlayPlacementContextForNextOverlay(preferredScreen: preferredScreen) else { return }
 
-        let shouldStageAsAccessory = shouldStageOverlayAsAccessory
+        let shouldAvoidSpaceSwitch = hasFullscreenWindowOnScreen(placement.screen)
+        let shouldStageAsAccessory = shouldStageOverlayAsAccessory || shouldAvoidSpaceSwitch
 
         if !stagedForAllSpaces && shouldStageAsAccessory {
             // Let the all-spaces panel attach to the pointer's display before the app reclaims focus.
@@ -831,7 +861,7 @@
         let placementFrame = placement.frame
         let finishForegroundClaim: () -> Void = { [weak self, weak window] in
             guard let self, let window, self.overlayWindow === window else { return }
-            self.refreshLauncherChromeState(activate: true)
+            self.refreshLauncherChromeState(activate: !shouldAvoidSpaceSwitch, avoidSpaceSwitch: shouldAvoidSpaceSwitch)
             if window.frame != placementFrame {
                 window.setFrame(placementFrame, display: true)
                 window.makeKeyAndOrderFront(nil)
@@ -848,6 +878,42 @@
         } else {
             finishForegroundClaim()
         }
+    }
+
+    private func hasFullscreenWindowOnScreen(_ screen: NSScreen) -> Bool {
+        let screenFrame = screen.frame
+        let windows = CGWindowListCopyWindowInfo([.optionOnScreenOnly, .excludeDesktopElements], kCGNullWindowID) as? [[String: Any]] ?? []
+        return windows.contains { info in
+            guard let owner = info[kCGWindowOwnerName as String] as? String,
+                  owner != AppIdentity.displayName,
+                  owner != "Window Server",
+                  owner != "Dock",
+                  owner != "loginwindow",
+                  let layer = info[kCGWindowLayer as String] as? Int,
+                  layer == 0,
+                  let bounds = info[kCGWindowBounds as String] as? NSDictionary
+            else { return false }
+
+            let x = cgWindowDimension(bounds, "X")
+            let y = cgWindowDimension(bounds, "Y")
+            let width = cgWindowDimension(bounds, "Width")
+            let height = cgWindowDimension(bounds, "Height")
+            let windowFrame = NSRect(x: x, y: y, width: width, height: height)
+            let widthMatches = abs(windowFrame.width - screenFrame.width) <= 12
+            let heightMatches = windowFrame.height >= screenFrame.height * 0.88
+            let horizontallyAligned = abs(windowFrame.midX - screenFrame.midX) <= 12
+            return widthMatches && heightMatches && horizontallyAligned
+        }
+    }
+
+    private func cgWindowDimension(_ bounds: NSDictionary, _ key: String) -> CGFloat {
+        if let value = bounds[key] as? CGFloat {
+            return value
+        }
+        if let value = bounds[key] as? NSNumber {
+            return CGFloat(truncating: value)
+        }
+        return 0
     }
 
     private func installOverlayKeyMonitor() {
@@ -1119,6 +1185,19 @@
                 return
             }
 
+            if self.isMenuTrackingWindow(keyWindow) {
+                return
+            }
+
+            if self.isAppOwnedDocumentWindow(keyWindow) {
+                self.prepareSettingsWindow(keyWindow)
+                return
+            }
+
+            if NSApp.windows.contains(keyWindow) {
+                return
+            }
+
             // Settings/Preferences window -> float it above overlay for real-time preview.
             if self.isSettingsWindowCandidate(keyWindow) {
                 self.prepareSettingsWindow(keyWindow)
@@ -1176,6 +1255,7 @@
     private func isSettingsWindowCandidate(_ window: NSWindow) -> Bool {
         if window == settingsWindow { return true }
         if window.identifier?.rawValue == "TagLauncherPreferencesWindow" { return true }
+        if isAppOwnedDocumentWindow(window) { return true }
         guard NSApp.windows.contains(window),
               window != overlayWindow,
               window.isVisible,
@@ -1184,6 +1264,21 @@
         return settingsWindowTitleCandidates().contains(normalizedWindowTitle(window.title))
     }
 
+    private func isAppOwnedDocumentWindow(_ window: NSWindow) -> Bool {
+        NSApp.windows.contains(window)
+            && window != overlayWindow
+            && window.isVisible
+            && !(window is NSPanel)
+            && !isMenuTrackingWindow(window)
+            && window.styleMask.contains(.titled)
+    }
+
+    private func isMenuTrackingWindow(_ window: NSWindow) -> Bool {
+        let className = NSStringFromClass(type(of: window))
+        return className.localizedCaseInsensitiveContains("Menu")
+            || className.localizedCaseInsensitiveContains("Popup")
+    }
+
     private func settingsWindowTitleCandidates() -> Set<String> {
         let keys = [
             "menu.preferences",

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