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import { css } from "@linaria/core";
import { h, JSX, VNode, ComponentChildren } from "preact";
import { useCallback, useEffect, useRef, useState } from "preact/hooks";
// eslint-disable-next-line import/extensions
import { alpha } from "./colors/manipulation";
import { ModalManager } from "./ModalManager";
import { Portal } from "./Portal.js";
// eslint-disable-next-line import/extensions
import { theme } from "./style";
const baseStyle = css`
position: fixed;
z-index: ${theme.zIndex.modal};
right: 0px;
bottom: 0px;
top: 0px;
left: 0px;
`;
interface Props {
class: string;
children: ComponentChildren;
open?: boolean;
exited?: boolean;
container?: HTMLElement;
}
const defaultManager = new ModalManager();
const manager = defaultManager;
export function Modal({
open,
// exited,
class: _class,
children,
container,
...rest
}: Props): VNode {
const [exited, setExited] = useState(true);
const mountNodeRef = useRef<HTMLElement | undefined>(undefined);
const isTopModal = useCallback(
() => manager.isTopModal(getModal()),
[manager],
);
const handlePortalRef = useEventCallback<HTMLElement[], void>((node) => {
mountNodeRef.current = node;
if (!node) {
return;
}
if (open && isTopModal()) {
handleMounted();
} else {
ariaHidden(modalRef.current, true);
}
});
return (
<Portal
ref={handlePortalRef}
container={container}
disablePortal={disablePortal}
>
<div
class={[_class, baseStyle].join(" ")}
style={{
visibility: !open && exited ? "hidden" : "visible",
}}
>
{children}
</div>
</Portal>
);
}
function getOffsetTop(rect: any, vertical: any): number {
let offset = 0;
if (typeof vertical === "number") {
offset = vertical;
} else if (vertical === "center") {
offset = rect.height / 2;
} else if (vertical === "bottom") {
offset = rect.height;
}
return offset;
}
function getOffsetLeft(rect: any, horizontal: any): number {
let offset = 0;
if (typeof horizontal === "number") {
offset = horizontal;
} else if (horizontal === "center") {
offset = rect.width / 2;
} else if (horizontal === "right") {
offset = rect.width;
}
return offset;
}
function getTransformOriginValue(transformOrigin): string {
return [transformOrigin.horizontal, transformOrigin.vertical]
.map((n) => (typeof n === "number" ? `${n}px` : n))
.join(" ");
}
function resolveAnchorEl(anchorEl: any): any {
return typeof anchorEl === "function" ? anchorEl() : anchorEl;
}
function useEventCallback<Args extends unknown[], Return>(
fn: (...args: Args) => Return,
): (...args: Args) => Return {
const ref = useRef(fn);
useEffect(() => {
ref.current = fn;
});
return useCallback(
(...args: Args) =>
// @ts-expect-error hide `this`
// tslint:disable-next-line:ban-comma-operator
(0, ref.current!)(...args),
[],
);
}
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