92 lines
3.6 KiB
JavaScript
92 lines
3.6 KiB
JavaScript
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"use strict";
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var _interopRequireWildcard = require("@babel/runtime/helpers/interopRequireWildcard").default;
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var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default;
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.default = void 0;
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exports.stringify = stringify;
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var _slicedToArray2 = _interopRequireDefault(require("@babel/runtime/helpers/slicedToArray"));
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var _warning = _interopRequireDefault(require("rc-util/lib/warning"));
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var _FieldContext = _interopRequireWildcard(require("./FieldContext"));
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var _react = require("react");
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var _valueUtil = require("./utils/valueUtil");
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var _typeUtil = require("./utils/typeUtil");
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function stringify(value) {
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try {
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return JSON.stringify(value);
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} catch (err) {
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return Math.random();
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}
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}
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var useWatchWarning = process.env.NODE_ENV !== 'production' ? function (namePath) {
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var fullyStr = namePath.join('__RC_FIELD_FORM_SPLIT__');
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var nameStrRef = (0, _react.useRef)(fullyStr);
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(0, _warning.default)(nameStrRef.current === fullyStr, '`useWatch` is not support dynamic `namePath`. Please provide static instead.');
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} : function () {};
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function useWatch() {
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for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
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args[_key] = arguments[_key];
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}
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var _args$ = args[0],
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dependencies = _args$ === void 0 ? [] : _args$,
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_args$2 = args[1],
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_form = _args$2 === void 0 ? {} : _args$2;
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var options = (0, _typeUtil.isFormInstance)(_form) ? {
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form: _form
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} : _form;
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var form = options.form;
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var _useState = (0, _react.useState)(),
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_useState2 = (0, _slicedToArray2.default)(_useState, 2),
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value = _useState2[0],
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setValue = _useState2[1];
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var valueStr = (0, _react.useMemo)(function () {
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return stringify(value);
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}, [value]);
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var valueStrRef = (0, _react.useRef)(valueStr);
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valueStrRef.current = valueStr;
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var fieldContext = (0, _react.useContext)(_FieldContext.default);
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var formInstance = form || fieldContext;
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var isValidForm = formInstance && formInstance._init;
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// Warning if not exist form instance
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if (process.env.NODE_ENV !== 'production') {
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(0, _warning.default)(args.length === 2 ? form ? isValidForm : true : isValidForm, 'useWatch requires a form instance since it can not auto detect from context.');
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}
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var namePath = (0, _valueUtil.getNamePath)(dependencies);
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var namePathRef = (0, _react.useRef)(namePath);
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namePathRef.current = namePath;
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useWatchWarning(namePath);
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(0, _react.useEffect)(function () {
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// Skip if not exist form instance
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if (!isValidForm) {
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return;
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}
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var getFieldsValue = formInstance.getFieldsValue,
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getInternalHooks = formInstance.getInternalHooks;
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var _getInternalHooks = getInternalHooks(_FieldContext.HOOK_MARK),
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registerWatch = _getInternalHooks.registerWatch;
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var cancelRegister = registerWatch(function (values, allValues) {
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var newValue = (0, _valueUtil.getValue)(options.preserve ? allValues : values, namePathRef.current);
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var nextValueStr = stringify(newValue);
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// Compare stringify in case it's nest object
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if (valueStrRef.current !== nextValueStr) {
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valueStrRef.current = nextValueStr;
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setValue(newValue);
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}
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});
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// TODO: We can improve this perf in future
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var initialValue = (0, _valueUtil.getValue)(options.preserve ? getFieldsValue(true) : getFieldsValue(), namePathRef.current);
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setValue(initialValue);
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return cancelRegister;
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},
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// We do not need re-register since namePath content is the same
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// eslint-disable-next-line react-hooks/exhaustive-deps
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[isValidForm]);
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return value;
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}
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var _default = useWatch;
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exports.default = _default;
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