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Diffstat (limited to 'apps/web/src/components/editor/timeline/index.tsx')
| -rw-r--r-- | apps/web/src/components/editor/timeline/index.tsx | 1092 |
1 files changed, 1092 insertions, 0 deletions
diff --git a/apps/web/src/components/editor/timeline/index.tsx b/apps/web/src/components/editor/timeline/index.tsx new file mode 100644 index 00000000..f9a6cb8c --- /dev/null +++ b/apps/web/src/components/editor/timeline/index.tsx @@ -0,0 +1,1092 @@ +"use client"; + +import { ScrollArea } from "../../ui/scroll-area"; +import { Button } from "../../ui/button"; +import { + Scissors, + ArrowLeftToLine, + ArrowRightToLine, + Trash2, + Snowflake, + Copy, + SplitSquareHorizontal, + Pause, + Play, + Video, + Music, + TypeIcon, + Lock, + LockOpen, + Link, +} from "lucide-react"; +import { + Tooltip, + TooltipContent, + TooltipTrigger, + TooltipProvider, +} from "../../ui/tooltip"; +import { + ContextMenu, + ContextMenuContent, + ContextMenuItem, + ContextMenuTrigger, +} from "../../ui/context-menu"; +import { useTimelineStore } from "@/stores/timeline-store"; +import { useMediaStore } from "@/stores/media-store"; +import { usePlaybackStore } from "@/stores/playback-store"; +import { useProjectStore } from "@/stores/project-store"; +import { useTimelineZoom } from "@/hooks/use-timeline-zoom"; +import { processMediaFiles } from "@/lib/media-processing"; +import { toast } from "sonner"; +import { useState, useRef, useEffect, useCallback } from "react"; +import { TimelineTrackContent } from "./timeline-track"; +import { + TimelinePlayhead, + useTimelinePlayheadRuler, +} from "./timeline-playhead"; +import { SelectionBox } from "../selection-box"; +import { useSelectionBox } from "@/hooks/use-selection-box"; +import { SnapIndicator } from "../snap-indicator"; +import { SnapPoint } from "@/hooks/use-timeline-snapping"; +import type { DragData, TimelineTrack } from "@/types/timeline"; +import { + getTrackHeight, + getCumulativeHeightBefore, + getTotalTracksHeight, + TIMELINE_CONSTANTS, + snapTimeToFrame, +} from "@/constants/timeline-constants"; + +export function Timeline() { + // Timeline shows all tracks (video, audio, effects) and their elements. + // You can drag media here to add it to your project. + // elements can be trimmed, deleted, and moved. + + const { + tracks, + addTrack, + addElementToTrack, + removeElementFromTrack, + removeElementFromTrackWithRipple, + getTotalDuration, + selectedElements, + clearSelectedElements, + setSelectedElements, + splitElement, + splitAndKeepLeft, + splitAndKeepRight, + toggleTrackMute, + separateAudio, + snappingEnabled, + toggleSnapping, + rippleEditingEnabled, + toggleRippleEditing, + dragState, + } = useTimelineStore(); + const { mediaItems, addMediaItem } = useMediaStore(); + const { activeProject } = useProjectStore(); + const { currentTime, duration, seek, setDuration, isPlaying, toggle } = + usePlaybackStore(); + const [isDragOver, setIsDragOver] = useState(false); + const [isProcessing, setIsProcessing] = useState(false); + const [progress, setProgress] = useState(0); + const dragCounterRef = useRef(0); + const timelineRef = useRef<HTMLDivElement>(null); + const rulerRef = useRef<HTMLDivElement>(null); + const [isInTimeline, setIsInTimeline] = useState(false); + + // Track mouse down/up for distinguishing clicks from drag/resize ends + const mouseTrackingRef = useRef({ + isMouseDown: false, + downX: 0, + downY: 0, + downTime: 0, + }); + + // Timeline zoom functionality + const { zoomLevel, setZoomLevel, handleWheel } = useTimelineZoom({ + containerRef: timelineRef, + isInTimeline, + }); + + // Old marquee selection removed - using new SelectionBox component instead + + // Dynamic timeline width calculation based on playhead position and duration + const dynamicTimelineWidth = Math.max( + (duration || 0) * TIMELINE_CONSTANTS.PIXELS_PER_SECOND * zoomLevel, // Base width from duration + (currentTime + 30) * TIMELINE_CONSTANTS.PIXELS_PER_SECOND * zoomLevel, // Width to show current time + 30 seconds buffer + timelineRef.current?.clientWidth || 1000 // Minimum width + ); + + // Scroll synchronization and auto-scroll to playhead + const rulerScrollRef = useRef<HTMLDivElement>(null); + const tracksScrollRef = useRef<HTMLDivElement>(null); + const trackLabelsRef = useRef<HTMLDivElement>(null); + const playheadRef = useRef<HTMLDivElement>(null); + const trackLabelsScrollRef = useRef<HTMLDivElement>(null); + const isUpdatingRef = useRef(false); + const lastRulerSync = useRef(0); + const lastTracksSync = useRef(0); + const lastVerticalSync = useRef(0); + + // Timeline playhead ruler handlers + const { handleRulerMouseDown } = useTimelinePlayheadRuler({ + currentTime, + duration, + zoomLevel, + seek, + rulerRef, + rulerScrollRef, + tracksScrollRef, + playheadRef, + }); + + // Selection box functionality + const tracksContainerRef = useRef<HTMLDivElement>(null); + const { + selectionBox, + handleMouseDown: handleSelectionMouseDown, + isSelecting, + justFinishedSelecting, + } = useSelectionBox({ + containerRef: tracksContainerRef, + playheadRef, + onSelectionComplete: (elements) => { + console.log(JSON.stringify({ onSelectionComplete: elements.length })); + setSelectedElements(elements); + }, + }); + + // Calculate snap indicator state + const [currentSnapPoint, setCurrentSnapPoint] = useState<SnapPoint | null>( + null + ); + const showSnapIndicator = + dragState.isDragging && snappingEnabled && currentSnapPoint !== null; + + // Callback to handle snap point changes from TimelineTrackContent + const handleSnapPointChange = useCallback((snapPoint: SnapPoint | null) => { + setCurrentSnapPoint(snapPoint); + }, []); + + // Track mouse down to distinguish real clicks from drag/resize ends + const handleTimelineMouseDown = useCallback((e: React.MouseEvent) => { + // Only track mouse down on timeline background areas (not elements) + const target = e.target as HTMLElement; + const isTimelineBackground = + !target.closest(".timeline-element") && + !playheadRef.current?.contains(target) && + !target.closest("[data-track-labels]"); + + if (isTimelineBackground) { + mouseTrackingRef.current = { + isMouseDown: true, + downX: e.clientX, + downY: e.clientY, + downTime: e.timeStamp, + }; + } + }, []); + + // Timeline content click to seek handler + const handleTimelineContentClick = useCallback( + (e: React.MouseEvent) => { + const { isMouseDown, downX, downY, downTime } = mouseTrackingRef.current; + + // Reset mouse tracking + mouseTrackingRef.current = { + isMouseDown: false, + downX: 0, + downY: 0, + downTime: 0, + }; + + // Only process as click if we tracked a mouse down on timeline background + if (!isMouseDown) { + console.log( + JSON.stringify({ + ignoredClickWithoutMouseDown: true, + timeStamp: e.timeStamp, + }) + ); + return; + } + + // Check if mouse moved significantly (indicates drag, not click) + const deltaX = Math.abs(e.clientX - downX); + const deltaY = Math.abs(e.clientY - downY); + const deltaTime = e.timeStamp - downTime; + + if (deltaX > 5 || deltaY > 5 || deltaTime > 500) { + console.log( + JSON.stringify({ + ignoredDragNotClick: true, + deltaX, + deltaY, + deltaTime, + timeStamp: e.timeStamp, + }) + ); + return; + } + + // Don't seek if this was a selection box operation + if (isSelecting || justFinishedSelecting) { + return; + } + + // Don't seek if clicking on timeline elements, but still deselect + if ((e.target as HTMLElement).closest(".timeline-element")) { + return; + } + + // Don't seek if clicking on playhead + if (playheadRef.current?.contains(e.target as Node)) { + return; + } + + // Don't seek if clicking on track labels + if ((e.target as HTMLElement).closest("[data-track-labels]")) { + clearSelectedElements(); + return; + } + + // Clear selected elements when clicking empty timeline area + console.log(JSON.stringify({ clearingSelectedElements: true })); + clearSelectedElements(); + + // Determine if we're clicking in ruler or tracks area + const isRulerClick = (e.target as HTMLElement).closest( + "[data-ruler-area]" + ); + + let mouseX: number; + let scrollLeft = 0; + + if (isRulerClick) { + // Calculate based on ruler position + const rulerContent = rulerScrollRef.current?.querySelector( + "[data-radix-scroll-area-viewport]" + ) as HTMLElement; + if (!rulerContent) return; + const rect = rulerContent.getBoundingClientRect(); + mouseX = e.clientX - rect.left; + scrollLeft = rulerContent.scrollLeft; + } else { + // Calculate based on tracks content position + const tracksContent = tracksScrollRef.current?.querySelector( + "[data-radix-scroll-area-viewport]" + ) as HTMLElement; + if (!tracksContent) return; + const rect = tracksContent.getBoundingClientRect(); + mouseX = e.clientX - rect.left; + scrollLeft = tracksContent.scrollLeft; + } + + const rawTime = Math.max( + 0, + Math.min( + duration, + (mouseX + scrollLeft) / + (TIMELINE_CONSTANTS.PIXELS_PER_SECOND * zoomLevel) + ) + ); + + // Use frame snapping for timeline clicking + const projectFps = activeProject?.fps || 30; + const time = snapTimeToFrame(rawTime, projectFps); + + seek(time); + }, + [ + duration, + zoomLevel, + seek, + rulerScrollRef, + tracksScrollRef, + clearSelectedElements, + isSelecting, + justFinishedSelecting, + ] + ); + + // Update timeline duration when tracks change + useEffect(() => { + const totalDuration = getTotalDuration(); + setDuration(Math.max(totalDuration, 10)); // Minimum 10 seconds for empty timeline + }, [tracks, setDuration, getTotalDuration]); + + // Old marquee system removed - using new SelectionBox component instead + + const handleDragEnter = (e: React.DragEvent) => { + // When something is dragged over the timeline, show overlay + e.preventDefault(); + // Don't show overlay for timeline elements - they're handled by tracks + if (e.dataTransfer.types.includes("application/x-timeline-element")) { + return; + } + dragCounterRef.current += 1; + if (!isDragOver) { + setIsDragOver(true); + } + }; + + const handleDragOver = (e: React.DragEvent) => { + e.preventDefault(); + }; + + const handleDragLeave = (e: React.DragEvent) => { + e.preventDefault(); + + // Don't update state for timeline elements - they're handled by tracks + if (e.dataTransfer.types.includes("application/x-timeline-element")) { + return; + } + + dragCounterRef.current -= 1; + if (dragCounterRef.current === 0) { + setIsDragOver(false); + } + }; + + const handleDrop = async (e: React.DragEvent) => { + // When media is dropped, add it as a new track/element + e.preventDefault(); + setIsDragOver(false); + dragCounterRef.current = 0; + + // Ignore timeline element drags - they're handled by track-specific handlers + const hasTimelineElement = e.dataTransfer.types.includes( + "application/x-timeline-element" + ); + if (hasTimelineElement) { + return; + } + + const itemData = e.dataTransfer.getData("application/x-media-item"); + if (itemData) { + try { + const dragData: DragData = JSON.parse(itemData); + + if (dragData.type === "text") { + // Always create new text track to avoid overlaps + useTimelineStore.getState().addTextToNewTrack(dragData); + } else { + // Handle media items + const mediaItem = mediaItems.find( + (item: any) => item.id === dragData.id + ); + if (!mediaItem) { + toast.error("Media item not found"); + return; + } + + useTimelineStore.getState().addMediaToNewTrack(mediaItem); + } + } catch (error) { + console.error("Error parsing dropped item data:", error); + toast.error("Failed to add item to timeline"); + } + } else if (e.dataTransfer.files?.length > 0) { + // Handle file drops by creating new tracks + if (!activeProject) { + toast.error("No active project"); + return; + } + + setIsProcessing(true); + setProgress(0); + try { + const processedItems = await processMediaFiles( + e.dataTransfer.files, + (p) => setProgress(p) + ); + for (const processedItem of processedItems) { + await addMediaItem(activeProject.id, processedItem); + const currentMediaItems = useMediaStore.getState().mediaItems; + const addedItem = currentMediaItems.find( + (item) => + item.name === processedItem.name && item.url === processedItem.url + ); + if (addedItem) { + useTimelineStore.getState().addMediaToNewTrack(addedItem); + } + } + } catch (error) { + // Show error if file processing fails + console.error("Error processing external files:", error); + toast.error("Failed to process dropped files"); + } finally { + setIsProcessing(false); + setProgress(0); + } + } + }; + + const dragProps = { + onDragEnter: handleDragEnter, + onDragOver: handleDragOver, + onDragLeave: handleDragLeave, + onDrop: handleDrop, + }; + + // Action handlers for toolbar + const handleSplitSelected = () => { + if (selectedElements.length === 0) { + return; + } + let splitCount = 0; + selectedElements.forEach(({ trackId, elementId }) => { + const track = tracks.find((t) => t.id === trackId); + const element = track?.elements.find((c) => c.id === elementId); + if (element && track) { + const effectiveStart = element.startTime; + const effectiveEnd = + element.startTime + + (element.duration - element.trimStart - element.trimEnd); + + if (currentTime > effectiveStart && currentTime < effectiveEnd) { + const newElementId = splitElement(trackId, elementId, currentTime); + if (newElementId) splitCount++; + } + } + }); + if (splitCount === 0) { + toast.error("Playhead must be within selected elements to split"); + } + }; + + const handleDuplicateSelected = () => { + if (selectedElements.length === 0) { + return; + } + const canDuplicate = selectedElements.length === 1; + if (!canDuplicate) return; + + const newSelections: { trackId: string; elementId: string }[] = []; + + selectedElements.forEach(({ trackId, elementId }) => { + const track = tracks.find((t) => t.id === trackId); + const element = track?.elements.find((el) => el.id === elementId); + + if (element) { + const newStartTime = + element.startTime + + (element.duration - element.trimStart - element.trimEnd) + + 0.1; + + // Create element without id (will be generated by store) + const { id, ...elementWithoutId } = element; + + addElementToTrack(trackId, { + ...elementWithoutId, + startTime: newStartTime, + }); + + // We can't predict the new id, so just clear selection for now + // TODO: addElementToTrack could return the new element id + } + }); + + clearSelectedElements(); + }; + + const handleFreezeSelected = () => { + toast.info("Freeze frame functionality coming soon!"); + }; + + const handleSplitAndKeepLeft = () => { + if (selectedElements.length !== 1) { + toast.error("Select exactly one element"); + return; + } + const { trackId, elementId } = selectedElements[0]; + const track = tracks.find((t) => t.id === trackId); + const element = track?.elements.find((c) => c.id === elementId); + if (!element) return; + const effectiveStart = element.startTime; + const effectiveEnd = + element.startTime + + (element.duration - element.trimStart - element.trimEnd); + if (currentTime <= effectiveStart || currentTime >= effectiveEnd) { + toast.error("Playhead must be within selected element"); + return; + } + splitAndKeepLeft(trackId, elementId, currentTime); + }; + + const handleSplitAndKeepRight = () => { + if (selectedElements.length !== 1) { + toast.error("Select exactly one element"); + return; + } + const { trackId, elementId } = selectedElements[0]; + const track = tracks.find((t) => t.id === trackId); + const element = track?.elements.find((c) => c.id === elementId); + if (!element) return; + const effectiveStart = element.startTime; + const effectiveEnd = + element.startTime + + (element.duration - element.trimStart - element.trimEnd); + if (currentTime <= effectiveStart || currentTime >= effectiveEnd) { + toast.error("Playhead must be within selected element"); + return; + } + splitAndKeepRight(trackId, elementId, currentTime); + }; + + const handleSeparateAudio = () => { + if (selectedElements.length !== 1) { + toast.error("Select exactly one media element to separate audio"); + return; + } + const { trackId, elementId } = selectedElements[0]; + const track = tracks.find((t) => t.id === trackId); + if (!track || track.type !== "media") { + toast.error("Select a media element to separate audio"); + return; + } + separateAudio(trackId, elementId); + }; + + const handleDeleteSelected = () => { + if (selectedElements.length === 0) { + return; + } + selectedElements.forEach(({ trackId, elementId }) => { + if (rippleEditingEnabled) { + removeElementFromTrackWithRipple(trackId, elementId); + } else { + removeElementFromTrack(trackId, elementId); + } + }); + clearSelectedElements(); + }; + + // --- Scroll synchronization effect --- + useEffect(() => { + const rulerViewport = rulerScrollRef.current?.querySelector( + "[data-radix-scroll-area-viewport]" + ) as HTMLElement; + const tracksViewport = tracksScrollRef.current?.querySelector( + "[data-radix-scroll-area-viewport]" + ) as HTMLElement; + const trackLabelsViewport = trackLabelsScrollRef.current?.querySelector( + "[data-radix-scroll-area-viewport]" + ) as HTMLElement; + + if (!rulerViewport || !tracksViewport) return; + + // Horizontal scroll synchronization between ruler and tracks + const handleRulerScroll = () => { + const now = Date.now(); + if (isUpdatingRef.current || now - lastRulerSync.current < 16) return; + lastRulerSync.current = now; + isUpdatingRef.current = true; + tracksViewport.scrollLeft = rulerViewport.scrollLeft; + isUpdatingRef.current = false; + }; + const handleTracksScroll = () => { + const now = Date.now(); + if (isUpdatingRef.current || now - lastTracksSync.current < 16) return; + lastTracksSync.current = now; + isUpdatingRef.current = true; + rulerViewport.scrollLeft = tracksViewport.scrollLeft; + isUpdatingRef.current = false; + }; + + rulerViewport.addEventListener("scroll", handleRulerScroll); + tracksViewport.addEventListener("scroll", handleTracksScroll); + + // Vertical scroll synchronization between track labels and tracks content + if (trackLabelsViewport) { + const handleTrackLabelsScroll = () => { + const now = Date.now(); + if (isUpdatingRef.current || now - lastVerticalSync.current < 16) + return; + lastVerticalSync.current = now; + isUpdatingRef.current = true; + tracksViewport.scrollTop = trackLabelsViewport.scrollTop; + isUpdatingRef.current = false; + }; + const handleTracksVerticalScroll = () => { + const now = Date.now(); + if (isUpdatingRef.current || now - lastVerticalSync.current < 16) + return; + lastVerticalSync.current = now; + isUpdatingRef.current = true; + trackLabelsViewport.scrollTop = tracksViewport.scrollTop; + isUpdatingRef.current = false; + }; + + trackLabelsViewport.addEventListener("scroll", handleTrackLabelsScroll); + tracksViewport.addEventListener("scroll", handleTracksVerticalScroll); + + return () => { + rulerViewport.removeEventListener("scroll", handleRulerScroll); + tracksViewport.removeEventListener("scroll", handleTracksScroll); + trackLabelsViewport.removeEventListener( + "scroll", + handleTrackLabelsScroll + ); + tracksViewport.removeEventListener( + "scroll", + handleTracksVerticalScroll + ); + }; + } + + return () => { + rulerViewport.removeEventListener("scroll", handleRulerScroll); + tracksViewport.removeEventListener("scroll", handleTracksScroll); + }; + }, []); + + return ( + <div + className={`h-full flex flex-col transition-colors duration-200 relative bg-panel rounded-sm overflow-hidden`} + {...dragProps} + onMouseEnter={() => setIsInTimeline(true)} + onMouseLeave={() => setIsInTimeline(false)} + > + {/* Toolbar */} + <div className="border-b flex items-center justify-between px-2 py-1"> + <div className="flex items-center gap-1 w-full"> + <TooltipProvider delayDuration={500}> + {/* Play/Pause Button */} + <Tooltip> + <TooltipTrigger asChild> + <Button + variant="text" + size="icon" + onClick={toggle} + className="mr-2" + > + {isPlaying ? ( + <Pause className="h-4 w-4" /> + ) : ( + <Play className="h-4 w-4" /> + )} + </Button> + </TooltipTrigger> + <TooltipContent> + {isPlaying ? "Pause (Space)" : "Play (Space)"} + </TooltipContent> + </Tooltip> + <div className="w-px h-6 bg-border mx-1" /> + {/* Time Display */} + <div + className="text-xs text-muted-foreground font-mono px-2" + style={{ minWidth: "18ch", textAlign: "center" }} + > + {currentTime.toFixed(1)}s / {duration.toFixed(1)}s + </div> + {/* Test Clip Button - for debugging */} + {tracks.length === 0 && ( + <> + <div className="w-px h-6 bg-border mx-1" /> + <Tooltip> + <TooltipTrigger asChild> + <Button + variant="outline" + size="sm" + onClick={() => { + const trackId = addTrack("media"); + addElementToTrack(trackId, { + type: "media", + mediaId: "test", + name: "Test Clip", + duration: TIMELINE_CONSTANTS.DEFAULT_TEXT_DURATION, + startTime: 0, + trimStart: 0, + trimEnd: 0, + }); + }} + className="text-xs" + > + Add Test Clip + </Button> + </TooltipTrigger> + <TooltipContent> + Add a test clip to try playback + </TooltipContent> + </Tooltip> + </> + )} + <div className="w-px h-6 bg-border mx-1" /> + <Tooltip> + <TooltipTrigger asChild> + <Button + variant="text" + size="icon" + onClick={handleSplitSelected} + > + <Scissors className="h-4 w-4" /> + </Button> + </TooltipTrigger> + <TooltipContent>Split element (Ctrl+S)</TooltipContent> + </Tooltip> + <Tooltip> + <TooltipTrigger asChild> + <Button + variant="text" + size="icon" + onClick={handleSplitAndKeepLeft} + > + <ArrowLeftToLine className="h-4 w-4" /> + </Button> + </TooltipTrigger> + <TooltipContent>Split and keep left (Ctrl+Q)</TooltipContent> + </Tooltip> + <Tooltip> + <TooltipTrigger asChild> + <Button + variant="text" + size="icon" + onClick={handleSplitAndKeepRight} + > + <ArrowRightToLine className="h-4 w-4" /> + </Button> + </TooltipTrigger> + <TooltipContent>Split and keep right (Ctrl+W)</TooltipContent> + </Tooltip> + <Tooltip> + <TooltipTrigger asChild> + <Button + variant="text" + size="icon" + onClick={handleSeparateAudio} + > + <SplitSquareHorizontal className="h-4 w-4" /> + </Button> + </TooltipTrigger> + <TooltipContent>Separate audio (Ctrl+D)</TooltipContent> + </Tooltip> + <Tooltip> + <TooltipTrigger asChild> + <Button + variant="text" + size="icon" + onClick={handleDuplicateSelected} + > + <Copy className="h-4 w-4" /> + </Button> + </TooltipTrigger> + <TooltipContent>Duplicate element (Ctrl+D)</TooltipContent> + </Tooltip> + <Tooltip> + <TooltipTrigger asChild> + <Button + variant="text" + size="icon" + onClick={handleFreezeSelected} + > + <Snowflake className="h-4 w-4" /> + </Button> + </TooltipTrigger> + <TooltipContent>Freeze frame (F)</TooltipContent> + </Tooltip> + <Tooltip> + <TooltipTrigger asChild> + <Button + variant="text" + size="icon" + onClick={handleDeleteSelected} + > + <Trash2 className="h-4 w-4" /> + </Button> + </TooltipTrigger> + <TooltipContent>Delete element (Delete)</TooltipContent> + </Tooltip> + </TooltipProvider> + </div> + <div className="flex items-center gap-1"> + <TooltipProvider delayDuration={500}> + <Tooltip> + <TooltipTrigger asChild> + <Button variant="text" size="icon" onClick={toggleSnapping}> + {snappingEnabled ? ( + <LockOpen className="h-4 w-4 text-primary" /> + ) : ( + <Lock className="h-4 w-4" /> + )} + </Button> + </TooltipTrigger> + <TooltipContent>Auto snapping</TooltipContent> + </Tooltip> + <Tooltip> + <TooltipTrigger asChild> + <Button + variant="text" + size="icon" + onClick={toggleRippleEditing} + > + <Link + className={`h-4 w-4 ${rippleEditingEnabled ? "text-primary" : ""}`} + /> + </Button> + </TooltipTrigger> + <TooltipContent> + {rippleEditingEnabled + ? "Disable Ripple Editing" + : "Enable Ripple Editing"} + </TooltipContent> + </Tooltip> + </TooltipProvider> + </div> + </div> + + {/* Timeline Container */} + <div + className="flex-1 flex flex-col overflow-hidden relative" + ref={timelineRef} + > + <TimelinePlayhead + currentTime={currentTime} + duration={duration} + zoomLevel={zoomLevel} + tracks={tracks} + seek={seek} + rulerRef={rulerRef} + rulerScrollRef={rulerScrollRef} + tracksScrollRef={tracksScrollRef} + trackLabelsRef={trackLabelsRef} + timelineRef={timelineRef} + playheadRef={playheadRef} + isSnappingToPlayhead={ + showSnapIndicator && currentSnapPoint?.type === "playhead" + } + /> + <SnapIndicator + snapPoint={currentSnapPoint} + zoomLevel={zoomLevel} + tracks={tracks} + timelineRef={timelineRef} + trackLabelsRef={trackLabelsRef} + isVisible={showSnapIndicator} + /> + {/* Timeline Header with Ruler */} + <div className="flex bg-panel sticky top-0 z-10"> + {/* Track Labels Header */} + <div className="w-48 flex-shrink-0 bg-muted/30 border-r flex items-center justify-between px-3 py-2"> + {/* Empty space */} + <span className="text-sm font-medium text-muted-foreground opacity-0"> + . + </span> + </div> + + {/* Timeline Ruler */} + <div + className="flex-1 relative overflow-hidden h-4" + onWheel={handleWheel} + onMouseDown={handleSelectionMouseDown} + onClick={handleTimelineContentClick} + data-ruler-area + > + <ScrollArea className="w-full" ref={rulerScrollRef}> + <div + ref={rulerRef} + className="relative h-4 select-none cursor-default" + style={{ + width: `${dynamicTimelineWidth}px`, + }} + onMouseDown={handleRulerMouseDown} + > + {/* Time markers */} + {(() => { + // Calculate appropriate time interval based on zoom level + const getTimeInterval = (zoom: number) => { + const pixelsPerSecond = + TIMELINE_CONSTANTS.PIXELS_PER_SECOND * zoom; + if (pixelsPerSecond >= 200) return 0.1; // Every 0.1s when very zoomed in + if (pixelsPerSecond >= 100) return 0.5; // Every 0.5s when zoomed in + if (pixelsPerSecond >= 50) return 1; // Every 1s at normal zoom + if (pixelsPerSecond >= 25) return 2; // Every 2s when zoomed out + if (pixelsPerSecond >= 12) return 5; // Every 5s when more zoomed out + if (pixelsPerSecond >= 6) return 10; // Every 10s when very zoomed out + return 30; // Every 30s when extremely zoomed out + }; + + const interval = getTimeInterval(zoomLevel); + const markerCount = Math.ceil(duration / interval) + 1; + + return Array.from({ length: markerCount }, (_, i) => { + const time = i * interval; + if (time > duration) return null; + + const isMainMarker = + time % (interval >= 1 ? Math.max(1, interval) : 1) === 0; + + return ( + <div + key={i} + className={`absolute top-0 bottom-0 ${ + isMainMarker + ? "border-l border-muted-foreground/40" + : "border-l border-muted-foreground/20" + }`} + style={{ + left: `${time * TIMELINE_CONSTANTS.PIXELS_PER_SECOND * zoomLevel}px`, + }} + > + <span + className={`absolute top-1 left-1 text-[0.6rem] ${ + isMainMarker + ? "text-muted-foreground font-medium" + : "text-muted-foreground/70" + }`} + > + {(() => { + const formatTime = (seconds: number) => { + const hours = Math.floor(seconds / 3600); + const minutes = Math.floor((seconds % 3600) / 60); + const secs = seconds % 60; + + if (hours > 0) { + return `${hours}:${minutes.toString().padStart(2, "0")}:${Math.floor(secs).toString().padStart(2, "0")}`; + } else if (minutes > 0) { + return `${minutes}:${Math.floor(secs).toString().padStart(2, "0")}`; + } else if (interval >= 1) { + return `${Math.floor(secs)}s`; + } else { + return `${secs.toFixed(1)}s`; + } + }; + return formatTime(time); + })()} + </span> + </div> + ); + }).filter(Boolean); + })()} + </div> + </ScrollArea> + </div> + </div> + + {/* Tracks Area */} + <div className="flex-1 flex overflow-hidden"> + {/* Track Labels */} + {tracks.length > 0 && ( + <div + ref={trackLabelsRef} + className="w-48 flex-shrink-0 border-r border-black overflow-y-auto" + data-track-labels + > + <ScrollArea className="w-full h-full" ref={trackLabelsScrollRef}> + <div className="flex flex-col gap-1"> + {tracks.map((track) => ( + <div + key={track.id} + className="flex items-center px-3 border-b border-muted/30 group bg-foreground/5" + style={{ height: `${getTrackHeight(track.type)}px` }} + > + <div className="flex items-center flex-1 min-w-0"> + <TrackIcon track={track} /> + </div> + {track.muted && ( + <span className="ml-2 text-xs text-red-500 font-semibold flex-shrink-0"> + Muted + </span> + )} + </div> + ))} + </div> + </ScrollArea> + </div> + )} + + {/* Timeline Tracks Content */} + <div + className="flex-1 relative overflow-hidden" + onWheel={handleWheel} + onMouseDown={(e) => { + handleTimelineMouseDown(e); + handleSelectionMouseDown(e); + }} + onClick={handleTimelineContentClick} + ref={tracksContainerRef} + > + <SelectionBox + startPos={selectionBox?.startPos || null} + currentPos={selectionBox?.currentPos || null} + containerRef={tracksContainerRef} + isActive={selectionBox?.isActive || false} + /> + <ScrollArea className="w-full h-full" ref={tracksScrollRef}> + <div + className="relative flex-1" + style={{ + height: `${Math.max(200, Math.min(800, getTotalTracksHeight(tracks)))}px`, + width: `${dynamicTimelineWidth}px`, + }} + > + {tracks.length === 0 ? ( + <div></div> + ) : ( + <> + {tracks.map((track, index) => ( + <ContextMenu key={track.id}> + <ContextMenuTrigger asChild> + <div + className="absolute left-0 right-0 border-b border-muted/30 py-[0.05rem]" + style={{ + top: `${getCumulativeHeightBefore(tracks, index)}px`, + height: `${getTrackHeight(track.type)}px`, + }} + onClick={(e) => { + // If clicking empty area (not on a element), deselect all elements + if ( + !(e.target as HTMLElement).closest( + ".timeline-element" + ) + ) { + clearSelectedElements(); + } + }} + > + <TimelineTrackContent + track={track} + zoomLevel={zoomLevel} + onSnapPointChange={handleSnapPointChange} + /> + </div> + </ContextMenuTrigger> + <ContextMenuContent> + <ContextMenuItem + onClick={() => toggleTrackMute(track.id)} + > + {track.muted ? "Unmute Track" : "Mute Track"} + </ContextMenuItem> + <ContextMenuItem> + Track settings (soon) + </ContextMenuItem> + </ContextMenuContent> + </ContextMenu> + ))} + </> + )} + </div> + </ScrollArea> + </div> + </div> + </div> + </div> + ); +} + +function TrackIcon({ track }: { track: TimelineTrack }) { + return ( + <> + {track.type === "media" && ( + <Video className="w-4 h-4 flex-shrink-0 text-muted-foreground" /> + )} + {track.type === "text" && ( + <TypeIcon className="w-4 h-4 flex-shrink-0 text-muted-foreground" /> + )} + {track.type === "audio" && ( + <Music className="w-4 h-4 flex-shrink-0 text-muted-foreground" /> + )} + </> + ); +} |