diff options
Diffstat (limited to 'apps/web/src/hooks')
| -rw-r--r-- | apps/web/src/hooks/use-drag-clip.ts | 237 |
1 files changed, 0 insertions, 237 deletions
diff --git a/apps/web/src/hooks/use-drag-clip.ts b/apps/web/src/hooks/use-drag-clip.ts deleted file mode 100644 index 1d38343b..00000000 --- a/apps/web/src/hooks/use-drag-clip.ts +++ /dev/null @@ -1,237 +0,0 @@ -import { useState, useEffect, useCallback, useRef } from "react"; -import { useTimelineStore } from "@/stores/timeline-store"; - -interface DragState { - isDragging: boolean; - elementId: string | null; - trackId: string | null; - startMouseX: number; - startElementTime: number; - clickOffsetTime: number; - currentTime: number; -} - -export function useDragClip(zoomLevel: number) { - const { tracks, updateElementStartTime, moveElementToTrack } = - useTimelineStore(); - - const [dragState, setDragState] = useState<DragState>({ - isDragging: false, - elementId: null, - trackId: null, - startMouseX: 0, - startElementTime: 0, - clickOffsetTime: 0, - currentTime: 0, - }); - - const timelineRef = useRef<HTMLDivElement>(null); - const dragStateRef = useRef(dragState); - - // Keep ref in sync with state - dragStateRef.current = dragState; - - const startDrag = useCallback( - ( - e: React.MouseEvent, - elementId: string, - trackId: string, - elementStartTime: number, - clickOffsetTime: number - ) => { - e.preventDefault(); - e.stopPropagation(); - - setDragState({ - isDragging: true, - elementId, - trackId, - startMouseX: e.clientX, - startElementTime: elementStartTime, - clickOffsetTime, - currentTime: elementStartTime, - }); - }, - [] - ); - - const updateDrag = useCallback( - (e: MouseEvent) => { - if (!dragState.isDragging || !timelineRef.current) { - return; - } - - const timelineRect = timelineRef.current.getBoundingClientRect(); - const mouseX = e.clientX - timelineRect.left; - const mouseTime = Math.max(0, mouseX / (50 * zoomLevel)); - const adjustedTime = Math.max(0, mouseTime - dragState.clickOffsetTime); - const snappedTime = Math.round(adjustedTime * 10) / 10; - - setDragState((prev) => ({ - ...prev, - currentTime: snappedTime, - })); - }, - [dragState.isDragging, dragState.clickOffsetTime, zoomLevel] - ); - - const endDrag = useCallback( - (targetTrackId?: string) => { - if (!dragState.isDragging || !dragState.elementId || !dragState.trackId) - return; - - const finalTrackId = targetTrackId || dragState.trackId; - const finalTime = dragState.currentTime; - - // Check for overlaps - const sourceTrack = tracks.find((t) => t.id === dragState.trackId); - const targetTrack = tracks.find((t) => t.id === finalTrackId); - const movingElement = sourceTrack?.elements.find( - (e) => e.id === dragState.elementId - ); - - if (!movingElement || !targetTrack) { - setDragState((prev) => ({ ...prev, isDragging: false })); - return; - } - - const movingElementDuration = - movingElement.duration - - movingElement.trimStart - - movingElement.trimEnd; - const movingElementEnd = finalTime + movingElementDuration; - - const hasOverlap = targetTrack.elements.some((existingElement) => { - // Skip the element being moved if it's on the same track - if ( - dragState.trackId === finalTrackId && - existingElement.id === dragState.elementId - ) { - return false; - } - - const existingStart = existingElement.startTime; - const existingEnd = - existingElement.startTime + - (existingElement.duration - - existingElement.trimStart - - existingElement.trimEnd); - - return finalTime < existingEnd && movingElementEnd > existingStart; - }); - - if (!hasOverlap) { - if (dragState.trackId === finalTrackId) { - // Moving within same track - updateElementStartTime(finalTrackId, dragState.elementId!, finalTime); - } else { - // Moving to different track - moveElementToTrack( - dragState.trackId!, - finalTrackId, - dragState.elementId! - ); - requestAnimationFrame(() => { - updateElementStartTime( - finalTrackId, - dragState.elementId!, - finalTime - ); - }); - } - } - - setDragState({ - isDragging: false, - elementId: null, - trackId: null, - startMouseX: 0, - startElementTime: 0, - clickOffsetTime: 0, - currentTime: 0, - }); - }, - [dragState, tracks, updateElementStartTime, moveElementToTrack] - ); - - const cancelDrag = useCallback(() => { - setDragState({ - isDragging: false, - elementId: null, - trackId: null, - startMouseX: 0, - startElementTime: 0, - clickOffsetTime: 0, - currentTime: 0, - }); - }, []); - - // Global mouse events - useEffect(() => { - if (!dragState.isDragging) return; - - const handleMouseMove = (e: MouseEvent) => updateDrag(e); - const handleMouseUp = () => endDrag(); - const handleEscape = (e: KeyboardEvent) => { - if (e.key === "Escape") cancelDrag(); - }; - - document.addEventListener("mousemove", handleMouseMove); - document.addEventListener("mouseup", handleMouseUp); - document.addEventListener("keydown", handleEscape); - - return () => { - document.removeEventListener("mousemove", handleMouseMove); - document.removeEventListener("mouseup", handleMouseUp); - document.removeEventListener("keydown", handleEscape); - }; - }, [dragState.isDragging, updateDrag, endDrag, cancelDrag]); - - const getDraggedElementPosition = useCallback( - (elementId: string) => { - // Use ref to get current state, not stale closure - const currentDragState = dragStateRef.current; - const isMatch = - currentDragState.isDragging && currentDragState.elementId === elementId; - - if (isMatch) { - return currentDragState.currentTime; - } - return null; - }, - [] // No dependencies needed since we use ref - ); - - const isValidDropTarget = useCallback( - (trackId: string) => { - if (!dragState.isDragging) return false; - - const sourceTrack = tracks.find((t) => t.id === dragState.trackId); - const targetTrack = tracks.find((t) => t.id === trackId); - - if (!sourceTrack || !targetTrack) return false; - - // For now, allow drops on same track type - return sourceTrack.type === targetTrack.type; - }, - [dragState.isDragging, dragState.trackId, tracks] - ); - - return { - // State - isDragging: dragState.isDragging, - draggedElementId: dragState.elementId, - currentDragTime: dragState.currentTime, - clickOffsetTime: dragState.clickOffsetTime, - - // Methods - startDrag, - endDrag, - cancelDrag, - getDraggedElementPosition, - isValidDropTarget, - - // Refs - timelineRef, - }; -} |