Option for large alt badges (#4571)

* add pref for large alt badge

* add to settings

* do the large badge bit

* Tweak wording

---------

Co-authored-by: Dan Abramov <dan.abramov@gmail.com>

1 files changed, 49 insertions, 0 deletions

diff --git a/src/state/preferences/large-alt-badge.tsx b/src/state/preferences/large-alt-badge.tsx
new file mode 100644
index 000000000..b3d597c5c
--- /dev/null
+++ b/src/state/preferences/large-alt-badge.tsx
@@ -0,0 +1,49 @@
+import React from 'react'
+
+import * as persisted from '#/state/persisted'
+
+type StateContext = persisted.Schema['largeAltBadgeEnabled']
+type SetContext = (v: persisted.Schema['largeAltBadgeEnabled']) => void
+
+const stateContext = React.createContext<StateContext>(
+  persisted.defaults.largeAltBadgeEnabled,
+)
+const setContext = React.createContext<SetContext>(
+  (_: persisted.Schema['largeAltBadgeEnabled']) => {},
+)
+
+export function Provider({children}: React.PropsWithChildren<{}>) {
+  const [state, setState] = React.useState(
+    persisted.get('largeAltBadgeEnabled'),
+  )
+
+  const setStateWrapped = React.useCallback(
+    (largeAltBadgeEnabled: persisted.Schema['largeAltBadgeEnabled']) => {
+      setState(largeAltBadgeEnabled)
+      persisted.write('largeAltBadgeEnabled', largeAltBadgeEnabled)
+    },
+    [setState],
+  )
+
+  React.useEffect(() => {
+    return persisted.onUpdate(() => {
+      setState(persisted.get('largeAltBadgeEnabled'))
+    })
+  }, [setStateWrapped])
+
+  return (
+    <stateContext.Provider value={state}>
+      <setContext.Provider value={setStateWrapped}>
+        {children}
+      </setContext.Provider>
+    </stateContext.Provider>
+  )
+}
+
+export function useLargeAltBadgeEnabled() {
+  return React.useContext(stateContext)
+}
+
+export function useSetLargeAltBadgeEnabled() {
+  return React.useContext(setContext)
+}