collapsed | collapsed: boolean | Whether the track row is collapsed. |
exists | exists: boolean | Whether the requested track exists. |
groupId | groupId: string | undefined | Optional track group id. |
height | height: number | Expanded row height in pixels, matching canvas geometry. |
kind | kind: TrackKind | null | App-defined track kind, or null when the track is missing. |
label | label: string | Human-readable label for the header row. |
locked | locked: boolean | Whether the track is locked for editing. |
muted | muted: boolean | Whether the track is muted. |
name | name: string | undefined | User-facing track name, when set. |
rect | rect: TimelineTrackRect | null | Viewport row rectangle matching canvas track geometry. |
rootProps | rootProps: TimelineTrackHeaderRootProps | Props for the root track header row element. |
selected | selected: boolean | Whether the track itself is selected. |
selectTrack | (): TimelineCommandResult | Selects this track. |
setLocked | (locked: boolean): TimelineCommandResult | Sets this track's locked state. |
setMuted | (muted: boolean): TimelineCommandResult | Sets this track's muted state. |
setTrackGroup | (groupId: string | undefined): TimelineCommandResult | Assigns this track to a group, or clears its group. |
setTrackHeight | (height: number): TimelineCommandResult | Sets this track's expanded display height in pixels. |
setTrackTarget | (targeted: boolean): TimelineCommandResult | Sets this track's edit-targeted state. |
setVisible | (visible: boolean): TimelineCommandResult | Sets this track's output visibility. |
targeted | targeted: boolean | Whether the track is targeted for edit operations. |
toggleLock | (locked?: boolean): TimelineCommandResult | Sets or toggles this track's locked state. |
toggleMute | (muted?: boolean): TimelineCommandResult | Sets or toggles this track's muted state. |
toggleTrackTarget | (targeted?: boolean): TimelineCommandResult | Sets or toggles this track's edit-targeted state. |
toggleVisibility | (visible?: boolean): TimelineCommandResult | Sets or toggles this track's output visibility. |
track | track: Track<TrackKind> | null | Current track, or null when the id is missing. |
trackId | trackId: string | Requested track id. |
trackIndex | trackIndex: number | Zero-based track index, or -1 when the track is missing. |
visible | visible: boolean | Whether the track participates in active layer and media lookup. |
