アニメーション（#139） (#252)

#139

#139

#139

#139

#139

Merge branch 'feature/140' into feature/139

Merge remote-tracking branch 'origin/main' into feature/139

#140

Merge remote-tracking branch 'origin/main' into feature/140

Merge remote-tracking branch 'origin/main' into feature/140

#140 ぼちぼち

Merge remote-tracking branch 'origin/main' into feature/140

#140

#140

#140

#139 アニメーション

Co-authored-by: miteruzo <miteruzo@naver.com>
Reviewed-on: #252

frontend/src/stores/sharedTransitionStore.ts

@@ -0,0 +1,19 @@
+import { create } from 'zustand'
+
+type SharedTransitionState = {
+    byLocationKey:        Record<string, string>
+    setForLocationKey:    (locationKey: string, sharedId: string) => void
+    clearForLocationKey:  (locationKey: string) => void }
+
+
+export const useSharedTransitionStore = create<SharedTransitionState> (set => ({
+    byLocationKey:      { },
+    setForLocationKey:  (locationKey, sharedId) =>
+	set (state => ({ byLocationKey: { ...state.byLocationKey,
+					  [locationKey]: sharedId } })),
+    clearForLocationKey: (locationKey) =>
+	set (state => {
+	  const next = { ...state.byLocationKey }
+	  delete next[locationKey]
+	  return { byLocationKey: next }
+	}) }))