Spotlight Example

This example demonstrates how to create a Spotlight-like launcher window using the CollectionBehavior option on macOS.

Features

• Appears on all Spaces: Using MacWindowCollectionBehaviorCanJoinAllSpaces, the window is visible across all virtual desktops
• Overlays fullscreen apps: Using MacWindowCollectionBehaviorFullScreenAuxiliary, the window can appear over fullscreen applications
• Combined behaviors: Demonstrates combining multiple behaviors with bitwise OR
• Floating window: MacWindowLevelFloating keeps the window above other windows
• Accessory app: Doesn't appear in the Dock (uses ActivationPolicyAccessory)
• Frameless design: Clean, borderless appearance with translucent backdrop

Running the example

go run .

Note: This example is macOS-specific due to the use of CollectionBehavior.

Combining CollectionBehaviors

Behaviors can be combined using bitwise OR (|):

CollectionBehavior: application.MacWindowCollectionBehaviorCanJoinAllSpaces |
                    application.MacWindowCollectionBehaviorFullScreenAuxiliary,

CollectionBehavior Options

These are bitmask values that can be combined:

Space behavior:

Fullscreen behavior:

Use Cases

• Launcher apps (like Spotlight, Alfred, Raycast)
• Quick capture tools (notes, screenshots)
• System utilities that need to be accessible anywhere
• Overlay widgets that should appear over fullscreen apps

Status