52 lines
1.4 KiB
TypeScript
52 lines
1.4 KiB
TypeScript
import { ExcalidrawElement } from "./types";
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import { handlerRectangles } from "./handlerRectangles";
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import { SceneScroll } from "../scene/types";
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type HandlerRectanglesRet = keyof ReturnType<typeof handlerRectangles>;
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export function resizeTest(
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element: ExcalidrawElement,
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x: number,
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y: number,
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{ scrollX, scrollY }: SceneScroll
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): HandlerRectanglesRet | false {
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if (!element.isSelected || element.type === "text") return false;
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const handlers = handlerRectangles(element, { scrollX, scrollY });
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const filter = Object.keys(handlers).filter(key => {
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const handler = handlers[key as HandlerRectanglesRet]!;
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return (
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x + scrollX >= handler[0] &&
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x + scrollX <= handler[0] + handler[2] &&
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y + scrollY >= handler[1] &&
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y + scrollY <= handler[1] + handler[3]
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);
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});
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if (filter.length > 0) {
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return filter[0] as HandlerRectanglesRet;
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}
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return false;
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}
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export function getElementWithResizeHandler(
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elements: ExcalidrawElement[],
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{ x, y }: { x: number; y: number },
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{ scrollX, scrollY }: SceneScroll
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) {
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return elements.reduce((result, element) => {
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if (result) {
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return result;
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}
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const resizeHandle = resizeTest(element, x, y, {
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scrollX,
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scrollY
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});
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return resizeHandle ? { element, resizeHandle } : null;
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}, null as { element: ExcalidrawElement; resizeHandle: ReturnType<typeof resizeTest> } | null);
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}
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