SynchronizationContextStatusBar

Internal editor utility that injects a label into Unity's status bar displaying the name of the currently active SynchronizationContext. Useful for verifying that ParagonSynchronizationContext is correctly installed at runtime and in the editor.

Definition

Namespace: Paragon.Editor Assembly: Paragon.Editor.dll

[InitializeOnLoad]
internal static class SynchronizationContextStatusBar

Remarks

This class uses reflection to access Unity's internal AppStatusBar type and injects a custom OnGUI callback via OnGUIInjector. The label displays a shortened version of the active synchronization context's type name:

Active Context	Displayed Label
ParagonSynchronizationContext	Current Context: Paragon
UnitySynchronizationContext	Current Context: Unity
Default .NET SynchronizationContext	Current Context: dotNET

The status bar can be toggled on or off via the Enabled property, which is persisted as an editor preference through the [EditorPreference] attribute.

Properties

Enabled

Controls whether the synchronization context label is visible in the status bar. Persisted across editor sessions via editor preferences.

[EditorPreference("Show Synchronization Context Status")]
public static bool Enabled { get; set; }

Behavior

Initialization

The static constructor runs on editor load ([InitializeOnLoad]):

1. Resolves Unity's internal AppStatusBar type via reflection.

2. Registers OnEditorUpdate as a delayed call to find the status bar instance.

3. Subscribes to playModeStateChanged to trigger repaints on mode transitions.

OnGUI Injection

Once the AppStatusBar ScriptableObject is found, OnGUIInjector.Inject() hooks a custom OnGUI callback that renders the context label in the status bar area, right-aligned with an offset to avoid overlapping Unity's built-in status elements.

Context Name Resolution

The context name is cached and only re-evaluated when the SynchronizationContext.Current instance changes. The type name is simplified by stripping the "SynchronizationContext" suffix (e.g., ParagonSynchronizationContext → "Paragon"). If the resulting name is empty (i.e., the type is exactly SynchronizationContext), it falls back to "dotNET".

See Also

• ParagonSynchronizationContext — the custom context this status bar monitors

• SynchronizationContext Editor — editor tooling overview

• SynchronizationContext Subsystem — parent system overview