Pre-alpha: React with any emoji, behind flag

ts/util/hooks.ts

@@ -0,0 +1,42 @@
+import * as React from 'react';
+import { ActionCreatorsMapObject, bindActionCreators } from 'redux';
+import { useDispatch } from 'react-redux';
+
+// Restore focus on teardown
+export const useRestoreFocus = (
+  // The ref for the element to receive initial focus
+  focusRef: React.RefObject<any>,
+  // Allow for an optional root element that must exist
+  root: boolean | HTMLElement | null = true
+) => {
+  React.useEffect(() => {
+    if (!root) {
+      return;
+    }
+
+    const lastFocused = document.activeElement as any;
+    if (focusRef.current) {
+      focusRef.current.focus();
+    }
+
+    return () => {
+      // This ensures that the focus is returned to
+      // previous element
+      setTimeout(() => {
+        if (lastFocused && lastFocused.focus) {
+          lastFocused.focus();
+        }
+      });
+    };
+  }, [focusRef, root]);
+};
+
+export const useBoundActions = <T extends ActionCreatorsMapObject>(
+  actions: T
+) => {
+  const dispatch = useDispatch();
+
+  return React.useMemo(() => {
+    return bindActionCreators(actions, dispatch);
+  }, [dispatch]);
+};

ts/util/lint/exceptions.json

@@ -11551,17 +11551,17 @@
     "rule": "React-createRef",
     "path": "ts/components/conversation/Message.tsx",
     "line": "  public audioRef: React.RefObject<HTMLAudioElement> = React.createRef();",
-    "lineNumber": 181,
+    "lineNumber": 184,
     "reasonCategory": "usageTrusted",
-    "updated": "2020-04-16T19:36:47.586Z"
+    "updated": "2020-04-30T15:59:13.160Z"
   },
   {
     "rule": "React-createRef",
     "path": "ts/components/conversation/Message.tsx",
     "line": "  > = React.createRef();",
-    "lineNumber": 185,
+    "lineNumber": 188,
     "reasonCategory": "usageTrusted",
-    "updated": "2020-04-16T19:36:47.586Z"
+    "updated": "2020-04-30T15:59:13.160Z"
   },
   {
     "rule": "React-createRef",
@@ -11784,4 +11784,4 @@
     "reasonCategory": "falseMatch",
     "updated": "2020-04-05T23:45:16.746Z"
   }
-]
+]