TimelineState API

Signature

Interface TimelineState

Properties

Name	Signature	Description
`clipDropFeedback`	`clipDropFeedback: TimelineClipDropFeedback`	Transient cross-track clip drop feedback for the active body drag interaction.
`contentRevision`	`contentRevision: number`	Monotonic counter incremented when track or clip edits can change active layer lookup at a fixed playhead.
`duration?`	`duration?: RationalTime`	Explicit duration of the timeline. If set, this overrides the dynamic duration calculated from clips.
`inPoint?`	`inPoint?: RationalTime`	Optional current selection region In-Point boundary.
`markers?`	`markers?: Marker[]`	List of markers positioned on the timeline.
`outPoint?`	`outPoint?: RationalTime`	Optional current selection region Out-Point boundary.
`playbackRate?`	`playbackRate?: number`	Playback speed multiplier (1.0 = normal speed).
`playheadTime`	`playheadTime: RationalTime`	The current playhead position.
`playing?`	`playing?: boolean`	Current playback state of the timeline.
`scrollLeft`	`scrollLeft: number`	Horizontal scroll offset in pixels.
`scrollTop`	`scrollTop: number`	Vertical scroll offset in pixels.
`snapEnabled`	`snapEnabled: boolean`	Whether magnetic snapping is globally enabled.
`snapFeedback`	`snapFeedback: TimelineSnapFeedback`	Transient snap guide feedback for the active interaction.
`snapThresholdPixels`	`snapThresholdPixels: number`	Magnetic snap radius in screen pixels.
`tracks`	`tracks: Track<string>[]`	Active set of tracks.
`viewportHeight?`	`viewportHeight?: number`	Height of the visible timeline area in pixels (for frustum culling/virtualization).
`viewportWidth?`	`viewportWidth?: number`	Width of the visible timeline area in pixels (for frustum culling/virtualization).
`zoomScale`	`zoomScale: number`	Zoom scale representing pixels per second.