feat: item linking (#1779)

packages/web/src/javascripts/Hooks/mergeRefs.ts

@@ -0,0 +1,37 @@
+/**
+MIT License
+
+Copyright (c) 2020 Greg Bergé
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+*/
+
+import { MutableRefObject, LegacyRef, RefCallback } from 'react'
+
+export function mergeRefs<T = any>(refs: Array<MutableRefObject<T> | LegacyRef<T>>): RefCallback<T> {
+  return (value) => {
+    refs.forEach((ref) => {
+      if (typeof ref === 'function') {
+        ref(value)
+      } else if (ref != null) {
+        ;(ref as MutableRefObject<T | null>).current = value
+      }
+    })
+  }
+}