pre-installations and preparations

node_modules/@mui/base/node/useCompound/useCompoundItem.js

@@ -0,0 +1,46 @@
+"use strict";
+'use client';
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.useCompoundItem = useCompoundItem;
+var React = _interopRequireWildcard(require("react"));
+var _utils = require("@mui/utils");
+var _useCompoundParent = require("./useCompoundParent");
+function _getRequireWildcardCache(e) { if ("function" != typeof WeakMap) return null; var r = new WeakMap(), t = new WeakMap(); return (_getRequireWildcardCache = function (e) { return e ? t : r; })(e); }
+function _interopRequireWildcard(e, r) { if (!r && e && e.__esModule) return e; if (null === e || "object" != typeof e && "function" != typeof e) return { default: e }; var t = _getRequireWildcardCache(r); if (t && t.has(e)) return t.get(e); var n = { __proto__: null }, a = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var u in e) if ("default" !== u && Object.prototype.hasOwnProperty.call(e, u)) { var i = a ? Object.getOwnPropertyDescriptor(e, u) : null; i && (i.get || i.set) ? Object.defineProperty(n, u, i) : n[u] = e[u]; } return n.default = e, t && t.set(e, n), n; }
+/**
+ * Registers a child component with the parent component.
+ *
+ * @param id A unique key for the child component. If the `id` is `undefined`, the registration logic will not run (this can sometimes be the case during SSR).
+ *   This can be either a value, or a function that generates a value based on already registered siblings' ids.
+ *   If a function, it's called with the set of the ids of all the items that have already been registered.
+ *   Return `existingKeys.size` if you want to use the index of the new item as the id.
+ * @param itemMetadata Arbitrary metadata to pass to the parent component. This should be a stable reference (for example a memoized object), to avoid unnecessary re-registrations.
+ *
+ * @ignore - internal hook.
+ */
+function useCompoundItem(id, itemMetadata) {
+  const context = React.useContext(_useCompoundParent.CompoundComponentContext);
+  if (context === null) {
+    throw new Error('useCompoundItem must be used within a useCompoundParent');
+  }
+  const {
+    registerItem
+  } = context;
+  const [registeredId, setRegisteredId] = React.useState(typeof id === 'function' ? undefined : id);
+  (0, _utils.unstable_useEnhancedEffect)(() => {
+    const {
+      id: returnedId,
+      deregister
+    } = registerItem(id, itemMetadata);
+    setRegisteredId(returnedId);
+    return deregister;
+  }, [registerItem, itemMetadata, id]);
+  return {
+    id: registeredId,
+    index: registeredId !== undefined ? context.getItemIndex(registeredId) : -1,
+    totalItemCount: context.totalSubitemCount
+  };
+}