feat: splits working code

This commit is contained in:
Simon Orzel 2025-07-17 01:59:39 +02:00
parent 0d2894feda
commit 9fa9f406fe
13 changed files with 1231 additions and 882 deletions

File diff suppressed because it is too large Load Diff

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export { Timeline } from "../timeline";
export { TimelineToolbar } from "./timeline-toolbar";
export { TimelineContent } from "./timeline-content";
export { TimelineRuler } from "./timeline-ruler";
export { TimelineTracksArea } from "./timeline-tracks-area";
export { TrackIcon } from "./track-icon";
export { useTimelineDragHandlers } from "./timeline-drag-handlers";
export { useTimelineActionHandlers } from "./timeline-action-handlers";
export { useTimelineScrollSync } from "./timeline-scroll-sync";
export { useTimelineContentClick } from "./timeline-content-click";
export { useTimelineWheelHandler } from "./timeline-wheel-handler";

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import { toast } from "sonner";
import { useTimelineStore } from "@/stores/timeline-store";
import { usePlaybackStore } from "@/stores/playback-store";
import { TIMELINE_CONSTANTS } from "@/constants/timeline-constants";
export function useTimelineActionHandlers() {
const {
tracks,
addTrack,
addElementToTrack,
removeElementFromTrack,
selectedElements,
clearSelectedElements,
splitElement,
splitAndKeepLeft,
splitAndKeepRight,
separateAudio,
} = useTimelineStore();
const { currentTime } = usePlaybackStore();
// Action handlers for toolbar
const handleSplitSelected = () => {
if (selectedElements.length === 0) {
toast.error("No elements selected");
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) {
toast.error("No elements selected");
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) {
toast.error("No elements selected");
return;
}
selectedElements.forEach(({ trackId, elementId }) => {
removeElementFromTrack(trackId, elementId);
});
clearSelectedElements();
};
return {
handleSplitSelected,
handleDuplicateSelected,
handleFreezeSelected,
handleSplitAndKeepLeft,
handleSplitAndKeepRight,
handleSeparateAudio,
handleDeleteSelected,
};
}

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import { useCallback } from "react";
import { useProjectStore } from "@/stores/project-store";
import { TIMELINE_CONSTANTS, snapTimeToFrame } from "@/constants/timeline-constants";
export interface TimelineContentClickProps {
duration: number;
zoomLevel: number;
seek: (time: number) => void;
rulerScrollRef: React.RefObject<HTMLDivElement>;
tracksScrollRef: React.RefObject<HTMLDivElement>;
clearSelectedElements: () => void;
isSelecting: boolean;
justFinishedSelecting: boolean;
playheadRef: React.RefObject<HTMLDivElement>;
}
export function useTimelineContentClick({
duration,
zoomLevel,
seek,
rulerScrollRef,
tracksScrollRef,
clearSelectedElements,
isSelecting,
justFinishedSelecting,
playheadRef,
}: TimelineContentClickProps) {
const { activeProject } = useProjectStore();
// Timeline content click to seek handler
const handleTimelineContentClick = useCallback(
(e: React.MouseEvent) => {
console.log(
JSON.stringify({
timelineClick: {
isSelecting,
justFinishedSelecting,
willReturn: isSelecting || justFinishedSelecting,
},
})
);
// 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,
playheadRef,
activeProject?.fps,
]
);
return { handleTimelineContentClick };
}

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import { SelectionBox } from "../selection-box";
import { TimelinePlayhead } from "./timeline-playhead";
import { SnapIndicator } from "../snap-indicator";
import { TimelineRuler } from "./timeline-ruler";
import { TimelineTracksArea } from "./timeline-tracks-area";
import type { TimelineTrack } from "@/types/timeline";
import type { SnapPoint } from "@/hooks/use-timeline-snapping";
export interface TimelineContentProps {
dynamicTimelineWidth: number;
tracks: TimelineTrack[];
duration: number;
zoomLevel: number;
currentTime: number;
seek: (time: number) => void;
rulerRef: React.RefObject<HTMLDivElement>;
rulerScrollRef: React.RefObject<HTMLDivElement>;
tracksScrollRef: React.RefObject<HTMLDivElement>;
playheadRef: React.RefObject<HTMLDivElement>;
trackLabelsRef: React.RefObject<HTMLDivElement>;
timelineRef: React.RefObject<HTMLDivElement>;
handleSelectionMouseDown: (e: React.MouseEvent) => void;
handleTimelineContentClick: (e: React.MouseEvent) => void;
handleSnapPointChange: (snapPoint: SnapPoint | null) => void;
clearSelectedElements: () => void;
selectionBox: {
startPos: { x: number; y: number } | null;
currentPos: { x: number; y: number } | null;
isActive: boolean;
} | null;
tracksContainerRef: React.RefObject<HTMLDivElement>;
currentSnapPoint: SnapPoint | null;
showSnapIndicator: boolean;
}
export function TimelineContent({
dynamicTimelineWidth,
tracks,
duration,
zoomLevel,
currentTime,
seek,
rulerRef,
rulerScrollRef,
tracksScrollRef,
playheadRef,
trackLabelsRef,
timelineRef,
handleSelectionMouseDown,
handleTimelineContentClick,
handleSnapPointChange,
clearSelectedElements,
selectionBox,
tracksContainerRef,
currentSnapPoint,
showSnapIndicator,
}: TimelineContentProps) {
return (
<div className="min-w-max min-h-max" style={{ minWidth: `${dynamicTimelineWidth}px` }}>
<div className={`grid grid-cols-[192px_1fr] ${tracks.length > 0 ? `grid-rows-[20px_repeat(${tracks.length},minmax(0,max-content))]` : 'grid-rows-[20px_1fr]'}`}>
{/* Top-Left Corner (Empty space above track labels) */}
<div className="sticky top-0 left-0 border-inset bg-card/[0.99]"></div>
{/* Top Row (Sticky Ruler Header) */}
<TimelineRuler
duration={duration}
zoomLevel={zoomLevel}
currentTime={currentTime}
seek={seek}
rulerRef={rulerRef}
rulerScrollRef={rulerScrollRef}
tracksScrollRef={tracksScrollRef}
playheadRef={playheadRef}
handleSelectionMouseDown={handleSelectionMouseDown}
handleTimelineContentClick={handleTimelineContentClick}
/>
{/* Track Rows */}
<TimelineTracksArea
tracks={tracks}
zoomLevel={zoomLevel}
handleSnapPointChange={handleSnapPointChange}
clearSelectedElements={clearSelectedElements}
/>
</div>
{/* Overlay Components */}
<SelectionBox
startPos={selectionBox?.startPos || null}
currentPos={selectionBox?.currentPos || null}
containerRef={tracksContainerRef}
isActive={selectionBox?.isActive || false}
/>
<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}
/>
</div>
);
}

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import { useState, useRef } from "react";
import { toast } from "sonner";
import { useTimelineStore } from "@/stores/timeline-store";
import { useMediaStore } from "@/stores/media-store";
import { useProjectStore } from "@/stores/project-store";
import { processMediaFiles } from "@/lib/media-processing";
import type { DragData } from "@/types/timeline";
export interface TimelineDragHandlersProps {
isDragOver: boolean;
setIsDragOver: (isDragOver: boolean) => void;
isProcessing: boolean;
setIsProcessing: (isProcessing: boolean) => void;
progress: number;
setProgress: (progress: number) => void;
}
export function useTimelineDragHandlers({
isDragOver,
setIsDragOver,
isProcessing,
setIsProcessing,
progress,
setProgress,
}: TimelineDragHandlersProps) {
const { mediaItems, addMediaItem } = useMediaStore();
const { activeProject } = useProjectStore();
const dragCounterRef = useRef(0);
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,
};
return { dragProps };
}

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@ -66,7 +66,7 @@ export function TimelinePlayhead({
return (
<div
ref={playheadRef}
className="absolute pointer-events-auto z-[100] ml-48"
className="absolute pointer-events-auto z-[100] ml-48"
style={{
left: `${leftPosition}px`,
top: 0,
@ -112,5 +112,3 @@ export function useTimelinePlayheadRuler({
return { handleRulerMouseDown, isDraggingRuler };
}
export { TimelinePlayhead as default };

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import { TIMELINE_CONSTANTS } from "@/constants/timeline-constants";
import { useTimelinePlayheadRuler } from "./timeline-playhead";
export interface TimelineRulerProps {
duration: number;
zoomLevel: number;
currentTime: number;
seek: (time: number) => void;
rulerRef: React.RefObject<HTMLDivElement>;
rulerScrollRef: React.RefObject<HTMLDivElement>;
tracksScrollRef: React.RefObject<HTMLDivElement>;
playheadRef: React.RefObject<HTMLDivElement>;
handleSelectionMouseDown: (e: React.MouseEvent) => void;
handleTimelineContentClick: (e: React.MouseEvent) => void;
}
export function TimelineRuler({
duration,
zoomLevel,
currentTime,
seek,
rulerRef,
rulerScrollRef,
tracksScrollRef,
playheadRef,
handleSelectionMouseDown,
handleTimelineContentClick,
}: TimelineRulerProps) {
// Timeline playhead ruler handlers
const { handleRulerMouseDown } = useTimelinePlayheadRuler({
currentTime,
duration,
zoomLevel,
seek,
rulerRef,
rulerScrollRef,
tracksScrollRef,
playheadRef,
});
return (
<div
className="sticky top-0 bg-card/[0.99] border-b border-muted/30 z-[95]"
onMouseDown={handleSelectionMouseDown}
onClick={handleTimelineContentClick}
data-ruler-area
>
<div
ref={rulerRef}
className="relative h-5 select-none cursor-default pb-1 z-[95]"
onMouseDown={handleRulerMouseDown}
>
{(() => {
// 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 z-[95] ${isMainMarker
? "border-l border-muted-foreground/40"
: "border-l border-muted-foreground/20"
}`}
style={{
left: `${time * TIMELINE_CONSTANTS.PIXELS_PER_SECOND * zoomLevel}px`,
}}
>
<span
className={`absolute top-1 left-1 text-[0.6rem] z-[95] ${isMainMarker
? "text-muted-foreground font-medium"
: "text-muted-foreground/70"
}`}
>
{(() => {
const formatTime = (seconds: number) => {
const hours = Math.floor(seconds / 3600);
const minutes = Math.floor((seconds % 3600) / 60);
const secs = seconds % 60;
if (hours > 0) {
return `${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>
</div>
);
}

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import { useEffect, useRef } from "react";
export interface TimelineScrollSyncProps {
rulerScrollRef: React.RefObject<HTMLDivElement>;
tracksScrollRef: React.RefObject<HTMLDivElement>;
trackLabelsScrollRef: React.RefObject<HTMLDivElement>;
}
export function useTimelineScrollSync({
rulerScrollRef,
tracksScrollRef,
trackLabelsScrollRef,
}: TimelineScrollSyncProps) {
const isUpdatingRef = useRef(false);
const lastRulerSync = useRef(0);
const lastTracksSync = useRef(0);
const lastVerticalSync = useRef(0);
// --- 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 null;
}

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import { Button } from "../../ui/button";
import {
Scissors,
ArrowLeftToLine,
ArrowRightToLine,
Trash2,
Snowflake,
Copy,
SplitSquareHorizontal,
Pause,
Play,
Lock,
LockOpen,
} from "lucide-react";
import {
Tooltip,
TooltipContent,
TooltipTrigger,
TooltipProvider,
} from "../../ui/tooltip";
import { useTimelineStore } from "@/stores/timeline-store";
import { usePlaybackStore } from "@/stores/playback-store";
import { TIMELINE_CONSTANTS } from "@/constants/timeline-constants";
export interface TimelineToolbarProps {
handleSplitSelected: () => void;
handleSplitAndKeepLeft: () => void;
handleSplitAndKeepRight: () => void;
handleSeparateAudio: () => void;
handleDuplicateSelected: () => void;
handleFreezeSelected: () => void;
handleDeleteSelected: () => void;
}
export function TimelineToolbar({
handleSplitSelected,
handleSplitAndKeepLeft,
handleSplitAndKeepRight,
handleSeparateAudio,
handleDuplicateSelected,
handleFreezeSelected,
handleDeleteSelected,
}: TimelineToolbarProps) {
const {
tracks,
addTrack,
addElementToTrack,
snappingEnabled,
toggleSnapping,
} = useTimelineStore();
const { currentTime, duration, isPlaying, toggle } = usePlaybackStore();
return (
<div className="border-b flex items-center justify-between px-2 py-1 bg-card z-90">
<div className="flex items-center gap-1 w-full">
<TooltipProvider delayDuration={500}>
<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" />
<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>
{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 ? (
<Lock className="h-4 w-4" />
) : (
<LockOpen className="h-4 w-4 text-primary" />
)}
</Button>
</TooltipTrigger>
<TooltipContent>Auto snapping</TooltipContent>
</Tooltip>
</TooltipProvider>
</div>
</div>
);
}

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import { Fragment } from "react";
import { Plus } from "lucide-react";
import {
ContextMenu,
ContextMenuContent,
ContextMenuItem,
ContextMenuTrigger,
} from "../../ui/context-menu";
import { useTimelineStore } from "@/stores/timeline-store";
import { TimelineTrackContent } from "../timeline-track";
import { TrackIcon } from "./track-icon";
import { getTrackHeight } from "@/constants/timeline-constants";
import type { TimelineTrack } from "@/types/timeline";
import type { SnapPoint } from "@/hooks/use-timeline-snapping";
export interface TimelineTracksAreaProps {
tracks: TimelineTrack[];
zoomLevel: number;
handleSnapPointChange: (snapPoint: SnapPoint | null) => void;
clearSelectedElements: () => void;
}
export function TimelineTracksArea({
tracks,
zoomLevel,
handleSnapPointChange,
clearSelectedElements,
}: TimelineTracksAreaProps) {
const { addTrack, toggleTrackMute } = useTimelineStore();
return (
<>
{/* Track Rows */}
{tracks.map((track, index) => (
<Fragment key={track.id}>
{/* Left Column (Sticky Track Labels) */}
<div
className="sticky left-0 flex items-center border-b border-panel border-inset group bg-card/[0.99] z-[90]"
style={{ height: `${getTrackHeight(track.type)}px` }}
>
<div className="flex items-center gap-2 px-2">
<TrackIcon track={track} />
</div>
{track.muted && (
<span className="text-xs text-red-500 font-semibold">
Muted
</span>
)}
</div>
{/* Scrollable Track Content */}
<ContextMenu>
<ContextMenuTrigger asChild>
<div
className=" h-full"
onClick={(e) => {
// If clicking empty area (not on a element), deselect all elements
if (
!(e.target as HTMLElement).closest(
".timeline-element"
)
) {
clearSelectedElements();
}
}}
>
<TimelineTrackContent
track={track}
zoomLevel={zoomLevel}
onSnapPointChange={handleSnapPointChange}
/>
</div>
</ContextMenuTrigger>
<ContextMenuContent>
<ContextMenuItem
onClick={() => toggleTrackMute(track.id)}
>
{track.muted ? "Unmute Track" : "Mute Track"}
</ContextMenuItem>
<ContextMenuItem>
Track settings (soon)
</ContextMenuItem>
</ContextMenuContent>
</ContextMenu>
</Fragment>
))}
{/* Add Track Button - spans full width */}
<div
onClick={() => addTrack('media')}
className="col-span-1 sticky left-0 w-full flex items-center border-b border-muted bg-card/[0.99] hover:bg-card/50 transition-colors cursor-pointer z-[89]"
style={{ height: `${getTrackHeight("media")}px` }}
>
<div className="w-full flex justify-center items-center">
<Plus className="w-4 h-4 text-muted-foreground" />
</div>
</div>
</>
);
}

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import { useEffect } from "react";
export interface TimelineWheelHandlerProps {
timelineRef: React.RefObject<HTMLDivElement>;
isInTimeline: boolean;
handleWheel: (e: React.WheelEvent) => void;
}
export function useTimelineWheelHandler({
timelineRef,
isInTimeline,
handleWheel,
}: TimelineWheelHandlerProps) {
// Add wheel event listeners with passive: false to allow preventDefault
useEffect(() => {
const timelineContainer = timelineRef.current;
if (!timelineContainer || !isInTimeline) return;
const handleWheelCapture = (e: WheelEvent) => {
// Call the existing handleWheel function
handleWheel(e as any);
};
// Add wheel event listener with passive: false to allow preventDefault
timelineContainer.addEventListener("wheel", handleWheelCapture, { passive: false });
return () => {
timelineContainer.removeEventListener("wheel", handleWheelCapture);
};
}, [handleWheel, isInTimeline, timelineRef]);
return null;
}

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import { Video, Music, TypeIcon } from "lucide-react";
import type { TimelineTrack } from "@/types/timeline";
export 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" />
)}
</>
);
}