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Vance IngallsandClaude Sonnet 5
f16a2b3aa2
A group renders as its own row with member rows beneath it, and disclosure
splits into two independent controls: caret shows/hides a group's member
rows (structural), `∿` shows/hides any row's automation-lane rows. Plain
tracks lose their caret (nothing to disclose structurally) and keep only
`∿`. `expandedClipIds` keeps its existing keyframe-lane-state job;
`expandedGroupIds`/`expandedLaneOwnerIds` are new, independent sets.
Groups get a real position in the row/geometry pipeline rather than a
visual-only overlay: `useTimelineTrackDerivations` re-emits a group's member
tracks contiguously under a synthetic fractional anchor key
(firstMember - 0.5, the same fractional-key convention sub-composition
expansion already uses), so `rowGeometry`/keyboard-nav/virtualization treat
a group row as a first-class row without widening their key type away from
number. `TimelineLogicalRow.level` widens `1 | 2` to `1 | 2 | 3` (group /
member-under-group / lane), lanes always `owner.level + 1`.
All of it — grouped row emission, the header, the new expansion state — is
gated behind `isCanaryEnabled("audio-groups")`; disabled, `groups` resolves
empty and every new code path no-ops. `TimelineElement.audioGroup` (+
`audioGroupLabel`, resolved once per document via `resolveAudioGroups` from
B1) is parsed unconditionally, mirroring how `hidden`/`fxChain` already
flow DOM → manifest → TimelineElement — inert without the canary.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
31 lines
1.1 KiB
TypeScript
31 lines
1.1 KiB
TypeScript
import { isMultiDragActive, multiDragDeltaSeconds } from "./timelineMultiDragPreview";
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import type { MultiDragPreviewInput } from "./timelineMultiDragPreview";
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import type { TimelineTimeRange } from "../lib/timelineClipIndex";
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/** The extra render window a live multi-drag needs: its passengers still draw
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* at their ORIGIN position, offset by the drag delta, outside the normal
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* virtualized range. Empty when nothing is dragging. */
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export function useTimelineMultiDragActorWindows(
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multiDragPreview: MultiDragPreviewInput | null,
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rowsVirtualized: boolean,
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renderTimeRange: TimelineTimeRange,
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) {
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const multiDragDelta =
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multiDragPreview && isMultiDragActive(multiDragPreview)
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? multiDragDeltaSeconds(multiDragPreview)
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: 0;
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const actorWindows =
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rowsVirtualized && multiDragPreview && multiDragDelta !== 0
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? [
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{
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range: {
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start: renderTimeRange.start - multiDragDelta,
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end: renderTimeRange.end - multiDragDelta,
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},
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identities: multiDragPreview.selectedKeys,
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},
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]
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: [];
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return actorWindows;
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}
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