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|
"use client";
import { useCallback, useMemo, useRef } from "react";
import useDeepCompareEffect from "use-deep-compare-effect";
import { useEditor } from "@/hooks/use-editor";
import { useRafLoop } from "@/hooks/use-raf-loop";
import { useContainerSize } from "@/hooks/use-container-size";
import { useFullscreen } from "@/hooks/use-fullscreen";
import { CanvasRenderer } from "@/services/renderer/canvas-renderer";
import type { RootNode } from "@/services/renderer/nodes/root-node";
import { buildScene } from "@/services/renderer/scene-builder";
import { getLastFrameTime } from "@/lib/time";
import { PreviewInteractionOverlay } from "./preview-interaction-overlay";
import { BookmarkNoteOverlay } from "./bookmark-note-overlay";
import { ContextMenu, ContextMenuTrigger } from "@/components/ui/context-menu";
import { usePreviewStore } from "@/stores/preview-store";
import { PreviewContextMenu } from "./context-menu";
import { PreviewToolbar } from "./toolbar";
function usePreviewSize() {
const editor = useEditor();
const activeProject = editor.project.getActive();
return {
width: activeProject?.settings.canvasSize.width,
height: activeProject?.settings.canvasSize.height,
};
}
export function PreviewPanel() {
const containerRef = useRef<HTMLDivElement>(null);
const { isFullscreen, toggleFullscreen } = useFullscreen({ containerRef });
return (
<div
ref={containerRef}
className="panel bg-background relative flex size-full min-h-0 min-w-0 flex-col rounded-sm border"
>
<div className="flex min-h-0 min-w-0 flex-1 items-center justify-center p-2 pb-0">
<PreviewCanvas
onToggleFullscreen={toggleFullscreen}
containerRef={containerRef}
/>
<RenderTreeController />
</div>
<PreviewToolbar
isFullscreen={isFullscreen}
onToggleFullscreen={toggleFullscreen}
/>
</div>
);
}
function RenderTreeController() {
const editor = useEditor();
const tracks = editor.timeline.getTracks();
const mediaAssets = editor.media.getAssets();
const activeProject = editor.project.getActive();
const { width, height } = usePreviewSize();
useDeepCompareEffect(() => {
if (!activeProject) return;
const duration = editor.timeline.getTotalDuration();
const renderTree = buildScene({
tracks,
mediaAssets,
duration,
canvasSize: { width, height },
background: activeProject.settings.background,
});
editor.renderer.setRenderTree({ renderTree });
}, [tracks, mediaAssets, activeProject?.settings.background, width, height]);
return null;
}
function PreviewCanvas({
onToggleFullscreen,
containerRef,
}: {
onToggleFullscreen: () => void;
containerRef: React.RefObject<HTMLElement | null>;
}) {
const canvasRef = useRef<HTMLCanvasElement>(null);
const outerContainerRef = useRef<HTMLDivElement>(null);
const canvasBoundsRef = useRef<HTMLDivElement>(null);
const lastFrameRef = useRef(-1);
const lastSceneRef = useRef<RootNode | null>(null);
const renderingRef = useRef(false);
const { width: nativeWidth, height: nativeHeight } = usePreviewSize();
const containerSize = useContainerSize({ containerRef: outerContainerRef });
const editor = useEditor();
const activeProject = editor.project.getActive();
const { overlays } = usePreviewStore();
const renderer = useMemo(() => {
return new CanvasRenderer({
width: nativeWidth,
height: nativeHeight,
fps: activeProject.settings.fps,
});
}, [nativeWidth, nativeHeight, activeProject.settings.fps]);
const displaySize = useMemo(() => {
if (
!nativeWidth ||
!nativeHeight ||
containerSize.width === 0 ||
containerSize.height === 0
) {
return { width: nativeWidth ?? 0, height: nativeHeight ?? 0 };
}
const paddingBuffer = 4;
const availableWidth = containerSize.width - paddingBuffer;
const availableHeight = containerSize.height - paddingBuffer;
const aspectRatio = nativeWidth / nativeHeight;
const containerAspect = availableWidth / availableHeight;
const displayWidth =
containerAspect > aspectRatio
? availableHeight * aspectRatio
: availableWidth;
const displayHeight =
containerAspect > aspectRatio
? availableHeight
: availableWidth / aspectRatio;
return { width: displayWidth, height: displayHeight };
}, [nativeWidth, nativeHeight, containerSize.width, containerSize.height]);
const renderTree = editor.renderer.getRenderTree();
const render = useCallback(() => {
if (canvasRef.current && renderTree && !renderingRef.current) {
const time = editor.playback.getCurrentTime();
const lastFrameTime = getLastFrameTime({
duration: renderTree.duration,
fps: renderer.fps,
});
const renderTime = Math.min(time, lastFrameTime);
const frame = Math.floor(renderTime * renderer.fps);
if (
frame !== lastFrameRef.current ||
renderTree !== lastSceneRef.current
) {
renderingRef.current = true;
lastSceneRef.current = renderTree;
lastFrameRef.current = frame;
renderer
.renderToCanvas({
node: renderTree,
time: renderTime,
targetCanvas: canvasRef.current,
})
.then(() => {
renderingRef.current = false;
});
}
}
}, [renderer, renderTree, editor.playback]);
useRafLoop(render);
return (
<div
ref={outerContainerRef}
className="relative flex size-full items-center justify-center"
>
<ContextMenu>
<ContextMenuTrigger asChild>
<div
ref={canvasBoundsRef}
className="relative"
style={{ width: displaySize.width, height: displaySize.height }}
>
<canvas
ref={canvasRef}
width={nativeWidth}
height={nativeHeight}
className="block border"
style={{
width: displaySize.width,
height: displaySize.height,
background:
activeProject.settings.background.type === "blur"
? "transparent"
: activeProject?.settings.background.color,
}}
/>
<PreviewInteractionOverlay
canvasRef={canvasRef}
containerRef={canvasBoundsRef}
/>
{overlays.bookmarks && <BookmarkNoteOverlay />}
</div>
</ContextMenuTrigger>
<PreviewContextMenu
onToggleFullscreen={onToggleFullscreen}
containerRef={containerRef}
/>
</ContextMenu>
</div>
);
}
|
