react-100-form
Version:
Simple form utility made using react hooks
161 lines (160 loc) • 6.98 kB
JavaScript
;
var __assign = (this && this.__assign) || function () {
__assign = Object.assign || function(t) {
for (var s, i = 1, n = arguments.length; i < n; i++) {
s = arguments[i];
for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
t[p] = s[p];
}
return t;
};
return __assign.apply(this, arguments);
};
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
var __generator = (this && this.__generator) || function (thisArg, body) {
var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
function verb(n) { return function (v) { return step([n, v]); }; }
function step(op) {
if (f) throw new TypeError("Generator is already executing.");
while (_) try {
if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
if (y = 0, t) op = [op[0] & 2, t.value];
switch (op[0]) {
case 0: case 1: t = op; break;
case 4: _.label++; return { value: op[1], done: false };
case 5: _.label++; y = op[1]; op = [0]; continue;
case 7: op = _.ops.pop(); _.trys.pop(); continue;
default:
if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
if (t[2]) _.ops.pop();
_.trys.pop(); continue;
}
op = body.call(thisArg, _);
} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
}
};
Object.defineProperty(exports, "__esModule", { value: true });
var react_1 = require("react");
function logError(err) {
console.error('An Event-Object must be passed to handleChange, handleBlur and handleSubmit', [err]);
}
function getUsefulEventData(e) {
try {
var _a = e.target, type = _a.type, checked = _a.checked, value = _a.value;
return {
name: e.target.name,
value: type === 'checkbox' ? checked : value,
};
}
catch (err) {
logError(err);
}
}
var useForm = function (initialValues, validate) {
if (initialValues === void 0) { initialValues = {}; }
var _a = react_1.useState(initialValues), commitedValues = _a[0], setCommitedValues = _a[1];
var _b = react_1.useState({}), errorMap = _b[0], setErrorMap = _b[1];
var _c = react_1.useState(false), isDirty = _c[0], setIsDirty = _c[1];
var _d = react_1.useState(false), isSubmitting = _d[0], setIsSubmitting = _d[1];
var _e = react_1.useState(false), isValid = _e[0], setIsValid = _e[1];
var _f = react_1.useState({}), touchedMap = _f[0], setTouchedMap = _f[1];
var _g = react_1.useState(initialValues), values = _g[0], setValues = _g[1];
var calculate = function () {
var errors = typeof validate === 'function' ? validate(values) : {};
setErrorMap(errors);
setIsDirty(JSON.stringify(commitedValues) !== JSON.stringify(values));
setIsValid(!Object.keys(errors).find(function (key) { return errors[key]; }));
};
react_1.useEffect(calculate, [commitedValues, values, validate]);
/**
* @param {object} values => key/value pairs
*/
function commit(values) {
setCommitedValues(values);
setValues(values);
setTouchedMap({});
}
// Restores to the last commited point
function rollBack() {
commit(commitedValues);
}
/**
* @param {string} name => Represents the field name
* @param {*} value => Field value
*/
function setValue(name, value) {
var _a;
setValues(__assign(__assign({}, values), (_a = {}, _a[name] = value, _a)));
}
/**
* @param {string} name => Represents the field name
*/
function setFieldTouched(name) {
var _a;
setTouchedMap(__assign(__assign({}, touchedMap), (_a = {}, _a[name] = true, _a)));
}
function handleChange(e) {
var _a = getUsefulEventData(e), name = _a.name, value = _a.value;
setValue(name, value);
}
function handleBlur(e) {
var name = getUsefulEventData(e).name;
setFieldTouched(name);
}
/**
* @param {function} callback => Normal/Async function that will be passed with the "values"
*/
function handleSubmit(callback) {
var _this = this;
return function (e) { return __awaiter(_this, void 0, void 0, function () {
var err_1;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
_a.trys.push([0, 2, , 3]);
e.preventDefault();
setIsSubmitting(true);
return [4 /*yield*/, callback(values)];
case 1:
_a.sent();
setIsSubmitting(false);
return [3 /*break*/, 3];
case 2:
err_1 = _a.sent();
logError(err_1);
return [3 /*break*/, 3];
case 3: return [2 /*return*/];
}
});
}); };
}
return {
commit: commit,
errorMap: errorMap,
handleBlur: handleBlur,
handleChange: handleChange,
handleSubmit: handleSubmit,
isDirty: isDirty,
isSubmitting: isSubmitting,
isValid: isValid,
rollBack: rollBack,
setFieldTouched: setFieldTouched,
setValue: setValue,
touchedMap: touchedMap,
values: Object.freeze(values),
};
};
exports.default = useForm;