@neo4j-ndl/react
Version:
React implementation of Neo4j Design System
160 lines • 7.16 kB
JavaScript
;
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.useSpotlightContext = exports.SpotlightProvider = void 0;
const jsx_runtime_1 = require("react/jsx-runtime");
/**
*
* Copyright (c) "Neo4j"
* Neo4j Sweden AB [http://neo4j.com]
*
* This file is part of Neo4j.
*
* Neo4j is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
const react_1 = require("@floating-ui/react");
const classnames_1 = __importDefault(require("classnames"));
const react_2 = require("react");
const SpotlightContext = (0, react_2.createContext)(null);
const SpotlightProvider = ({ children, hasOverlay = true, isOverlayTransparent = false, }) => {
const [active, setActive] = (0, react_2.useState)(null);
const [isOpen, setIsOpen] = (0, react_2.useState)(false);
const [targets, setTargets] = (0, react_2.useState)({});
const [targetRect, setTargetRect] = (0, react_2.useState)(null);
const registerTarget = (0, react_2.useCallback)((id, ref) => {
setTargets((prev) => (Object.assign(Object.assign({}, prev), { [id]: ref })));
}, []);
const unregisterTarget = (0, react_2.useCallback)((id) => {
setTargets((prev) => {
const newTargets = Object.assign({}, prev);
delete newTargets[id];
return newTargets;
});
}, []);
// Calculate target element position and size for mask
(0, react_2.useEffect)(() => {
var _a;
if (active !== null &&
targets[active] !== undefined &&
((_a = targets[active]) === null || _a === void 0 ? void 0 : _a.current) !== null) {
const element = targets[active].current;
const rect = element.getBoundingClientRect();
setTargetRect(rect);
}
else {
setTargetRect(null);
}
}, [active, targets]);
const contextValue = {
hasOverlay,
isActiveSpotlight: (0, react_2.useCallback)((target) => target === active, [active]),
isOpen,
registerTarget,
registeredTargets: targets,
setActiveSpotlight: (0, react_2.useCallback)((target) => setActive(target), []),
setIsOpen: (0, react_2.useCallback)((open) => setIsOpen(open), []),
unregisterTarget,
};
const overlayClasses = (0, classnames_1.default)('ndl-spotlight-overlay', {
'ndl-spotlight-overlay-opaque': !isOverlayTransparent,
'ndl-spotlight-overlay-open': isOpen && active !== null,
});
const overlayRootRef = (0, react_2.useRef)(null);
if (active !== null) {
overlayRootRef.current = document.getElementById(active);
}
// Get the border radius from the target element
const getHoleRadius = (0, react_2.useCallback)(() => {
var _a;
if (active !== null &&
targets[active] !== undefined &&
((_a = targets[active]) === null || _a === void 0 ? void 0 : _a.current) !== null) {
const element = targets[active].current;
const computedStyle = window.getComputedStyle(element);
const borderRadius = computedStyle.borderRadius;
// Parse the border radius value (handle px, rem, em, etc.)
const radiusValue = parseFloat(borderRadius);
return isNaN(radiusValue) ? 0 : radiusValue;
}
return 0;
}, [active, targets]);
const getMaskStyle = () => {
if (!targetRect || isOverlayTransparent) {
return {};
}
const { left, top, width, height } = targetRect;
const x = Math.max(0, left);
const y = Math.max(0, top);
const w = Math.max(0, width);
const h = Math.max(0, height);
const r = Math.max(0, Math.min(getHoleRadius(), Math.min(w, h) / 2));
const vw = window.innerWidth;
const vh = window.innerHeight;
// SVG mask: white = visible overlay, black = hole (transparent)
const svg = `
<svg xmlns="http://www.w3.org/2000/svg" width="${vw}" height="${vh}" viewBox="0 0 ${vw} ${vh}">
<defs>
<mask id="spotlightMask" maskUnits="userSpaceOnUse">
<rect x="0" y="0" width="${vw}" height="${vh}" fill="white"/>
<rect x="${x}" y="${y}" width="${w}" height="${h}" rx="${r}" ry="${r}" fill="black"/>
</mask>
</defs>
<rect x="0" y="0" width="${vw}" height="${vh}" fill="black" mask="url(#spotlightMask)"/>
</svg>`.trim();
const encoded = `data:image/svg+xml;utf8,${encodeURIComponent(svg)}`;
return {
WebkitMaskImage: `url("${encoded}")`,
WebkitMaskRepeat: 'no-repeat',
WebkitMaskSize: `${vw}px ${vh}px`,
maskImage: `url("${encoded}")`,
maskRepeat: 'no-repeat',
maskSize: `${vw}px ${vh}px`,
};
};
/** useEffect to update the target rect, so that the mask tracks the target element */
(0, react_2.useEffect)(() => {
var _a;
if (active === null) {
return;
}
const el = (_a = targets[active]) === null || _a === void 0 ? void 0 : _a.current;
if (el === null || el === undefined) {
return;
}
const update = () => setTargetRect(el.getBoundingClientRect());
update();
const ro = new ResizeObserver(update);
ro.observe(el);
window.addEventListener('scroll', update, true);
window.addEventListener('resize', update);
return () => {
ro.disconnect();
window.removeEventListener('scroll', update, true);
window.removeEventListener('resize', update);
};
}, [active, targets]);
return ((0, jsx_runtime_1.jsxs)(SpotlightContext.Provider, { value: contextValue, children: [hasOverlay && active !== null && isOpen && ((0, jsx_runtime_1.jsx)(react_1.FloatingPortal, { children: (0, jsx_runtime_1.jsx)(react_1.FloatingOverlay, { lockScroll: true, className: overlayClasses, style: getMaskStyle(), "data-testid": "ndl-spotlight-overlay" }) })), children] }));
};
exports.SpotlightProvider = SpotlightProvider;
const useSpotlightContext = () => {
const context = (0, react_2.useContext)(SpotlightContext);
if (context === null) {
throw new Error('Spotlight components must be wrapped in <SpotlightProvider />');
}
return context;
};
exports.useSpotlightContext = useSpotlightContext;
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