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instrumental/app/javascript/mastodon/reducers/dropdown_menu.ts

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import { createReducer } from '@reduxjs/toolkit';
import { closeDropdownMenu, openDropdownMenu } from '../actions/dropdown_menu';
interface DropdownMenuState {
openId: string | null;
keyboard: boolean;
scrollKey: string | null;
}
const initialState: DropdownMenuState = {
openId: null,
keyboard: false,
scrollKey: null,
};
export const dropdownMenuReducer = createReducer(initialState, (builder) => {
builder
.addCase(
openDropdownMenu,
(state, { payload: { id, keyboard, scrollKey } }) => {
state.openId = id;
state.keyboard = keyboard;
state.scrollKey = scrollKey;
},
)
.addCase(closeDropdownMenu, (state, { payload: { id } }) => {
if (state.openId === id) {
state.openId = null;
state.scrollKey = null;
}
});
});