gotosocial/web/source/settings/lib/form/check-list.jsx

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/*
GoToSocial
Copyright (C) 2021-2023 GoToSocial Authors admin@gotosocial.org
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
"use strict";
const React = require("react");
const syncpipe = require("syncpipe");
const { createSlice } = require("@reduxjs/toolkit");
const { enableMapSet } = require("immer");
enableMapSet(); // for use in reducers
const { reducer, actions } = createSlice({
name: "checklist",
initialState: {}, // not handled by slice itself
reducers: {
updateAll: (state, { payload: checked }) => {
const selectedEntries = new Set();
return {
entries: syncpipe(state.entries, [
(_) => Object.values(_),
(_) => _.map((entry) => {
if (checked) {
selectedEntries.add(entry.key);
}
return [entry.key, {
...entry,
checked
}];
}),
(_) => Object.fromEntries(_)
]),
selectedEntries
};
},
update: (state, { payload: { key, value } }) => {
if (value.checked !== undefined) {
if (value.checked === true) {
state.selectedEntries.add(key);
} else {
state.selectedEntries.delete(key);
}
}
state.entries[key] = {
...state.entries[key],
...value
};
},
updateMultiple: (state, { payload }) => {
payload.forEach(([key, value]) => {
if (value.checked !== undefined) {
if (value.checked === true) {
state.selectedEntries.add(key);
} else {
state.selectedEntries.delete(key);
}
}
state.entries[key] = {
...state.entries[key],
...value
};
});
}
}
});
function initialState({ entries, uniqueKey, initialValue }) {
const selectedEntries = new Set();
return {
entries: syncpipe(entries, [
(_) => _.map((entry) => {
let key = entry[uniqueKey];
let checked = entry.checked ?? initialValue;
if (checked) {
selectedEntries.add(key);
} else {
selectedEntries.delete(key);
}
return [
key,
{
...entry,
key,
checked
}
];
}),
(_) => Object.fromEntries(_)
]),
selectedEntries
};
}
module.exports = function useCheckListInput({ name }, { entries, uniqueKey = "key", initialValue = false }) {
const [state, dispatch] = React.useReducer(reducer, null,
() => initialState({ entries, uniqueKey, initialValue }) // initial state
);
const toggleAllRef = React.useRef(null);
React.useEffect(() => {
if (toggleAllRef.current != null) {
let some = state.selectedEntries.size > 0;
let all = false;
if (some) {
all = state.selectedEntries.size == Object.values(state.entries).length;
}
toggleAllRef.current.checked = all;
toggleAllRef.current.indeterminate = some && !all;
}
// only needs to update when state.selectedEntries changes, not state.entries
// eslint-disable-next-line react-hooks/exhaustive-deps
}, [state.selectedEntries]);
const reset = React.useCallback(
() => dispatch(actions.updateAll(initialValue)),
[initialValue]
);
const onChange = React.useCallback(
(key, value) => dispatch(actions.update({ key, value })),
[]
);
const updateMultiple = React.useCallback(
(entries) => dispatch(actions.updateMultiple(entries)),
[]
);
return React.useMemo(() => {
function toggleAll(e) {
let checked = e.target.checked;
if (e.target.indeterminate) {
checked = false;
}
dispatch(actions.updateAll(checked));
}
function selectedValues() {
return Array.from((state.selectedEntries)).map((key) => ({
...state.entries[key] // returned as new object, because reducer state is immutable
}));
}
return Object.assign([
state,
reset,
{ name }
], {
name,
value: state.entries,
onChange,
selectedValues,
reset,
someSelected: state.someChecked,
updateMultiple,
toggleAll: {
ref: toggleAllRef,
onChange: toggleAll
}
});
}, [state, reset, name, onChange, updateMultiple]);
};