Module inspector 

UI Inspector overlay for debugging widget trees and hit-test regions. UI Inspector overlay for debugging widget trees and hit-test regions.

The inspector visualizes:

• Hit regions with colored overlays
• Widget boundaries with colored borders
• Widget names and metadata

Usage

use ftui_widgets::inspector::{InspectorMode, InspectorState, InspectorOverlay};

// In your app state
let mut inspector = InspectorState::default();

// Toggle with F12
if key == KeyCode::F12 {
    inspector.toggle();
}

// Render overlay after all widgets
if inspector.is_active() {
    InspectorOverlay::new(&inspector).render(area, frame);
}

See docs/specs/ui-inspector.md for the full specification.

Structs

DiagnosticEntry

JSONL diagnostic log entry.

DiagnosticLog

Diagnostic log collector.

HitInfo

Helper to extract hit information from a HitCell for display.

InspectorOverlay

Inspector overlay widget.

InspectorState

Inspector overlay state (shared across frames).

InspectorStyle

Configuration for inspector appearance.

TelemetryHooks

Telemetry hooks for observing inspector events.

WidgetInfo

Information about a widget for inspector display.

Enums

DiagnosticEventKind

Diagnostic event types for JSONL logging.

InspectorMode

Inspector display mode.

Functions

diagnostics_enabled

Check if diagnostics are enabled.

init_diagnostics

Initialize diagnostic settings from environment.

is_deterministic_mode

Check if deterministic mode is enabled.

reset_event_counter

Reset event counter (for testing determinism).

set_diagnostics_enabled

Set diagnostics enabled state (for testing).

Type Aliases

TelemetryCallback

Callback type for telemetry hooks.