Module scroll_state 

Pure scroll state management

This module provides:

• Smooth scroll animations with easing
• Event source classification for scroll events
• Scrollbar geometry and hit-testing
• ExternalScrollId mapping for WebRender integration

Structs

AnimatedScrollState

The complete scroll state for a single node (with animation support)

FrameScrollInfo

Summary of scroll-related events that occurred during a frame

ScrollEvent

Scroll event to be processed with source tracking

ScrollManager

Manages all scroll state and animations for a window

ScrollTickResult

Result of a scroll tick, indicating what actions are needed

ScrollbarHit

Result of a scrollbar hit-test

ScrollbarState

Scrollbar geometry state (calculated per frame, used for hit-testing and rendering)

Enums

ScrollbarComponent

Which component of a scrollbar was hit during hit-testing

Functions

apply_easing

Apply an easing function to a normalized time value (0.0 to 1.0). Used by ScrollAnimation::tick() for smooth scroll animations.

Type Aliases

ScrollStates