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"use client";
import { useEffect, useRef, useCallback } from "react";
import { PanelView } from "@/components/editor/panels/assets/views/base-panel";
import { DraggableItem } from "@/components/editor/panels/assets/draggable-item";
import { effectsRegistry, EFFECT_TARGET_ELEMENT_TYPES } from "@/effects";
import { effectPreviewService } from "@/services/renderer/effect-preview";
import { useEditor } from "@/editor/use-editor";
import { buildEffectElement } from "@/timeline/element-utils";
import type { EffectDefinition } from "@/effects/types";
export function EffectsView() {
const effects = effectsRegistry.getAll();
return (
<PanelView title="Effects">
<EffectsGrid effects={effects} />
</PanelView>
);
}
function EffectsGrid({ effects }: { effects: EffectDefinition[] }) {
return (
<div
className="grid gap-2"
style={{ gridTemplateColumns: "repeat(auto-fill, minmax(96px, 1fr))" }}
>
{effects.map((effect) => (
<EffectItem key={effect.type} effect={effect} />
))}
</div>
);
}
function EffectPreviewCanvas({ effectType }: { effectType: string }) {
const canvasRef = useRef<HTMLCanvasElement>(null);
useEffect(() => {
const render = () => {
if (canvasRef.current) {
effectPreviewService.renderPreview({
effectType,
params: {},
targetCanvas: canvasRef.current,
});
}
};
render();
return effectPreviewService.onPreviewImageReady({ callback: render });
}, [effectType]);
return <canvas ref={canvasRef} className="size-full" />;
}
const MOTION_ARROW_DIRECTIONS: Record<string, [number, number]> = {
"pan-left": [-1, 0],
"pan-right": [1, 0],
"pan-up": [0, -1],
"pan-down": [0, 1],
};
function drawArrow({
context,
fromX,
fromY,
toX,
toY,
}: {
context: CanvasRenderingContext2D;
fromX: number;
fromY: number;
toX: number;
toY: number;
}) {
const headLength = 10;
const angle = Math.atan2(toY - fromY, toX - fromX);
context.beginPath();
context.moveTo(fromX, fromY);
context.lineTo(toX, toY);
context.moveTo(toX, toY);
context.lineTo(
toX - headLength * Math.cos(angle - Math.PI / 6),
toY - headLength * Math.sin(angle - Math.PI / 6),
);
context.moveTo(toX, toY);
context.lineTo(
toX - headLength * Math.cos(angle + Math.PI / 6),
toY - headLength * Math.sin(angle + Math.PI / 6),
);
context.stroke();
}
function MotionPreviewCanvas({ effectType }: { effectType: string }) {
const canvasRef = useRef<HTMLCanvasElement>(null);
useEffect(() => {
const canvas = canvasRef.current;
const context = canvas?.getContext("2d");
if (!canvas || !context) return;
const size = canvas.width;
const center = size / 2;
context.clearRect(0, 0, size, size);
context.fillStyle = "#17171c";
context.fillRect(0, 0, size, size);
context.strokeStyle = "rgba(255, 255, 255, 0.35)";
context.lineWidth = 2;
context.strokeRect(size * 0.2, size * 0.28, size * 0.6, size * 0.44);
context.strokeStyle = "#ffffff";
context.lineWidth = 4;
context.lineCap = "round";
const panDirection = MOTION_ARROW_DIRECTIONS[effectType];
if (panDirection) {
const [dx, dy] = panDirection;
drawArrow({
context,
fromX: center - dx * size * 0.18,
fromY: center - dy * size * 0.18,
toX: center + dx * size * 0.18,
toY: center + dy * size * 0.18,
});
return;
}
const inward = effectType === "zoom-out";
const spread = size * 0.16;
const reach = size * 0.3;
for (const [dx, dy] of [
[1, 1],
[-1, -1],
] as const) {
const innerX = center + dx * (inward ? reach : spread);
const innerY = center + dy * (inward ? reach : spread) * 0.7;
const outerX = center + dx * (inward ? spread : reach);
const outerY = center + dy * (inward ? spread : reach) * 0.7;
drawArrow({ context, fromX: innerX, fromY: innerY, toX: outerX, toY: outerY });
}
}, [effectType]);
return (
<canvas
ref={canvasRef}
width={effectPreviewService.PREVIEW_SIZE}
height={effectPreviewService.PREVIEW_SIZE}
className="size-full"
/>
);
}
function EffectItem({ effect }: { effect: EffectDefinition }) {
const editor = useEditor();
const handleAddToTimeline = useCallback(() => {
const currentTime = editor.playback.getCurrentTime();
const element = buildEffectElement({
effectType: effect.type,
startTime: currentTime,
});
editor.timeline.insertElement({
placement: { mode: "auto", trackType: "effect" },
element,
});
}, [editor, effect.type]);
const preview = effect.motion ? (
<MotionPreviewCanvas effectType={effect.type} />
) : (
<EffectPreviewCanvas effectType={effect.type} />
);
return (
<DraggableItem
name={effect.name}
preview={preview}
dragData={{
id: effect.type,
name: effect.name,
type: "effect",
effectType: effect.type,
targetElementTypes: EFFECT_TARGET_ELEMENT_TYPES,
}}
onAddToTimeline={
effect.supportsStandalone === false ? undefined : handleAddToTimeline
}
aspectRatio={1}
isRounded
variant="card"
containerClassName="w-full"
/>
);
}
|
