[JEWEL-992] Hide mouse cursor while typing in BTF on macOS #3372
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rock3r
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...e/src/main/kotlin/org/jetbrains/jewel/intui/standalone/StandalonePlatformCursorController.kt
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Nice work! Couple minor notes
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Summary
Implements cursor hiding behavior on macOS when typing in text fields, matching the native IDE behavior. The cursor automatically hides when the user types and reappears when the mouse moves.
Evidence
Screen.Recording.2026-01-06.at.6.37.57.PM.mov
Implementation Details
Architecture
Added a platform-specific cursor controller abstraction using Compose composition locals:
PlatformCursorController- Interface for platform-specific cursor controlStandalonePlatformCursorController- macOS implementation using JNA to call[NSCursor setHiddenUntilMouseMoves:YES]BridgePlatformCursorController- Bridge implementation usingMacUIUtil.hideCursor()NoOpPlatformCursorController- Fallback for unsupported platformsIntegration
InputFieldcomponents via.hideCursorOnTyping()modifierLocalPlatformCursorControllercomposition local:IntUiTheme→StandalonePlatformCursorControllerSwingBridgeTheme→BridgePlatformCursorControllerRelease notes
New features
Note
Implements macOS cursor-hiding behavior and abstracts platform-specific control.
PlatformCursorControllerandLocalPlatformCursorControllercomposition localBridgePlatformCursorController(usesMacUIUtil.hideCursor()),StandalonePlatformCursorController(uses JNA to call[NSCursor setHiddenUntilMouseMoves:])SwingBridgeTheme→BridgePlatformCursorController,IntUiTheme→StandalonePlatformCursorControllerInputFieldvia.hideCursorOnTyping()(key preview on keydown; active only when enabled and not read-only)Written by Cursor Bugbot for commit fbc46c1. This will update automatically on new commits. Configure here.