react-headings
Version:
HTML headings with auto-incrementing levels for WCAG compliance.
71 lines (70 loc) • 2.54 kB
JavaScript
;
var __assign = (this && this.__assign) || function () {
__assign = Object.assign || function(t) {
for (var s, i = 1, n = arguments.length; i < n; i++) {
s = arguments[i];
for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
t[p] = s[p];
}
return t;
};
return __assign.apply(this, arguments);
};
var __rest = (this && this.__rest) || function (s, e) {
var t = {};
for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0)
t[p] = s[p];
if (s != null && typeof Object.getOwnPropertySymbols === "function")
for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) {
if (e.indexOf(p[i]) < 0 && Object.prototype.propertyIsEnumerable.call(s, p[i]))
t[p[i]] = s[p[i]];
}
return t;
};
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.Section = exports.H = exports.useLevel = void 0;
var react_1 = __importDefault(require("react"));
var LevelContext = react_1.default.createContext({
level: 1,
Component: "h1",
});
/**
* Returns the current heading and level.
*/
function useLevel() {
return react_1.default.useContext(LevelContext);
}
exports.useLevel = useLevel;
function InternalH(_a, forwardedRef) {
var render = _a.render, props = __rest(_a, ["render"]);
var context = useLevel();
if (render) {
return render(context);
}
return react_1.default.createElement(context.Component, __assign({ ref: forwardedRef }, props));
}
/**
* Renders a dynamic HTML heading (h1, h2, etc.) or custom component according to the current level.
*/
exports.H = react_1.default.forwardRef(InternalH);
/**
* Renders `component` in the current level and `children` in the next level.
* @param component A component containing a heading
* @param children The children in the next level
*/
function Section(_a) {
var component = _a.component, children = _a.children;
var level = useLevel().level;
var nextLevel = Math.min(level + 1, 6);
var value = {
level: nextLevel,
Component: "h" + nextLevel,
};
return (react_1.default.createElement(react_1.default.Fragment, null,
component,
react_1.default.createElement(LevelContext.Provider, { value: value }, children)));
}
exports.Section = Section;