fix: meta+arrow activates only if meta+tab was first pressed

Also potentially meta+other_key would be absorbed by the app and not propagated to the focused app

alt-tab-macos/logic/Keyboard.swift

@@ -51,15 +51,24 @@ func keyboardHandler(_ cgEvent: CGEvent, _ delegate: Application) -> Unmanaged<C
             if event.modifierFlags.contains(Preferences.metaModifierFlag!) {
                 if isMeta {
                     delegate.preActivate()
-                } else if keyDown && (isLeftArrow || (isTab && event.modifierFlags.contains(.shift))) {
-                    delegate.showUiOrSelectPrevious()
-                    return nil // previously focused app should not receive keys
-                } else if keyDown && (isRightArrow || isTab) {
-                    delegate.showUiOrSelectNext()
-                    return nil // previously focused app should not receive keys
-                } else if keyDown && isEscape {
-                    delegate.hideUi()
                     return nil // previously focused app should not receive keys
+                } else if keyDown {
+                    if isTab && event.modifierFlags.contains(.shift) {
+                        delegate.showUiOrSelectPrevious()
+                        return nil // previously focused app should not receive keys
+                    } else if isTab {
+                        delegate.showUiOrSelectNext()
+                        return nil // previously focused app should not receive keys
+                    } else if isRightArrow && delegate.appIsBeingUsed {
+                        delegate.cycleSelection(1)
+                        return nil // previously focused app should not receive keys
+                    } else if isLeftArrow && delegate.appIsBeingUsed {
+                        delegate.cycleSelection(-1)
+                        return nil // previously focused app should not receive keys
+                    } else if keyDown && isEscape {
+                        delegate.hideUi()
+                        return nil // previously focused app should not receive keys
+                    }
                 }
             } else if isMeta && !keyDown {
                 delegate.focusTarget()

alt-tab-macos/ui/Application.swift

@@ -100,22 +100,26 @@ class Application: NSApplication, NSApplicationDelegate, NSWindowDelegate {
         selectedOpenWindow + step < 0 ? openWindows.count - 1 : (selectedOpenWindow + step) % openWindows.count
     }
 
+    func cycleSelection(_ step: Int) {
+        selectedOpenWindow = cellWithStep(step)
+        thumbnailsPanel!.highlightCell(step)
+    }
+
     func showUiOrCycleSelection(_ step: Int) {
         appIsBeingUsed = true
         if openWindows.count > 0 {
-            selectedOpenWindow = cellWithStep(step)
             if isFirstSummon {
                 isFirstSummon = false
                 let workItem = DispatchWorkItem {
                     self.computeOpenWindows()
                     self.thumbnailsPanel!.computeThumbnails()
-                    self.thumbnailsPanel!.highlightThumbnail(step)
+                    self.cycleSelection(step)
                     self.showCenteredPanel(self.thumbnailsPanel!)
                 }
                 workItems.append(workItem)
                 DispatchQueue.main.asyncAfter(deadline: DispatchTime.now() + Preferences.windowDisplayDelay!, execute: workItem)
             } else {
-                self.thumbnailsPanel!.highlightThumbnail(step)
+                self.cycleSelection(step)
             }
         }
     }

alt-tab-macos/ui/ThumbnailsPanel.swift

@@ -77,7 +77,7 @@ class ThumbnailsPanel: NSPanel, NSCollectionViewDataSource, NSCollectionViewDele
         return .zero
     }
 
-    func highlightThumbnail(_ step: Int) {
+    func highlightCell(_ step: Int) {
         collectionView_!.selectItems(at: [IndexPath(item: application!.selectedOpenWindow, section: 0)], scrollPosition: .top)
         collectionView_!.deselectItems(at: [IndexPath(item: application!.cellWithStep(-step), section: 0)])
     }