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"use client";
import { usePreviewViewport } from "@/components/editor/panels/preview/preview-viewport";
import { useTransformHandles } from "@/hooks/use-transform-handles";
import { isVisualElement } from "@/lib/timeline/element-utils";
import {
getCornerPosition,
getEdgeHandlePosition,
ROTATION_HANDLE_OFFSET,
type Corner,
type Edge,
} from "@/lib/preview/element-bounds";
import type { OnSnapLinesChange } from "@/hooks/use-preview-interaction";
import {
BoundingBoxOutline,
CornerHandle,
EdgeHandle,
IconHandle,
getResizeCursor,
} from "./handle-primitives";
import { Rotate01Icon } from "@hugeicons/core-free-icons";
const CORNERS: Corner[] = [
"top-left",
"top-right",
"bottom-left",
"bottom-right",
];
const EDGES: Edge[] = ["right", "left", "bottom"];
export function TransformHandles({
onSnapLinesChange,
}: {
onSnapLinesChange?: OnSnapLinesChange;
}) {
const viewport = usePreviewViewport();
const {
selectedWithBounds,
hasVisualSelection,
handleCornerPointerDown,
handleEdgePointerDown,
handleRotationPointerDown,
handlePointerMove,
handlePointerUp,
} = useTransformHandles({ onSnapLinesChange });
if (!hasVisualSelection || !selectedWithBounds) return null;
const { bounds, element } = selectedWithBounds;
if (!isVisualElement(element)) return null;
const displayScale = viewport.getDisplayScale();
const toOverlay = ({
canvasX,
canvasY,
}: {
canvasX: number;
canvasY: number;
}) =>
viewport.canvasToOverlay({
canvasX,
canvasY,
});
const center = toOverlay({ canvasX: bounds.cx, canvasY: bounds.cy });
const outlineWidth = Math.abs(bounds.width) * displayScale.x;
const outlineHeight = Math.abs(bounds.height) * displayScale.y;
const rotationAngleRad = (bounds.rotation * Math.PI) / 180;
const topCenterLocalY = -bounds.height / 2;
const topCenterScreen = toOverlay({
canvasX: bounds.cx - topCenterLocalY * Math.sin(rotationAngleRad),
canvasY: bounds.cy + topCenterLocalY * Math.cos(rotationAngleRad),
});
const rotationHandleScreen = {
x: topCenterScreen.x + Math.sin(rotationAngleRad) * ROTATION_HANDLE_OFFSET,
y: topCenterScreen.y - Math.cos(rotationAngleRad) * ROTATION_HANDLE_OFFSET,
};
const onPointerMove = (event: React.PointerEvent) =>
handlePointerMove({ event });
const onPointerUp = () => handlePointerUp();
return (
<div
className="pointer-events-none absolute inset-0 overflow-hidden"
aria-hidden
>
<BoundingBoxOutline
center={center}
outlineWidth={outlineWidth}
outlineHeight={outlineHeight}
rotation={bounds.rotation}
/>
{CORNERS.map((corner) => {
const cornerPosition = getCornerPosition({ bounds, corner });
const screen = toOverlay({
canvasX: cornerPosition.x,
canvasY: cornerPosition.y,
});
const angleDeg =
Math.atan2(screen.y - center.y, screen.x - center.x) *
(180 / Math.PI);
return (
<CornerHandle
key={corner}
cursor={getResizeCursor({ angleDeg })}
screen={screen}
onPointerDown={(event) =>
handleCornerPointerDown({ event, corner })
}
onPointerMove={onPointerMove}
onPointerUp={onPointerUp}
/>
);
})}
{EDGES.map((edge) => {
const edgePosition = getEdgeHandlePosition({ bounds, edge });
const screen = toOverlay({
canvasX: edgePosition.x,
canvasY: edgePosition.y,
});
return (
<EdgeHandle
key={edge}
edge={edge}
screen={screen}
rotation={bounds.rotation}
onPointerDown={(event) => handleEdgePointerDown({ event, edge })}
onPointerMove={onPointerMove}
onPointerUp={onPointerUp}
/>
);
})}
<IconHandle
icon={Rotate01Icon}
screen={rotationHandleScreen}
onPointerDown={(event) => handleRotationPointerDown({ event })}
onPointerMove={onPointerMove}
onPointerUp={onPointerUp}
/>
</div>
);
}
|
