react-native-paper
Version:
Material design for React Native
123 lines (122 loc) • 4.61 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = void 0;
var React = _interopRequireWildcard(require("react"));
var _reactNative = require("react-native");
var _utils = require("./utils");
var _theming = require("../../core/theming");
var _AnimatedText = _interopRequireDefault(require("../Typography/AnimatedText"));
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function (nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }
function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
function _extends() { _extends = Object.assign ? Object.assign.bind() : function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; }; return _extends.apply(this, arguments); }
/**
* Helper text is used in conjuction with input elements to provide additional hints for the user.
*
* ## Usage
* ```js
* import * as React from 'react';
* import { View } from 'react-native';
* import { HelperText, TextInput } from 'react-native-paper';
*
* const MyComponent = () => {
* const [text, setText] = React.useState('');
*
* const onChangeText = text => setText(text);
*
* const hasErrors = () => {
* return !text.includes('@');
* };
*
* return (
* <View>
* <TextInput label="Email" value={text} onChangeText={onChangeText} />
* <HelperText type="error" visible={hasErrors()}>
* Email address is invalid!
* </HelperText>
* </View>
* );
* };
*
* export default MyComponent;
* ```
*/
const HelperText = _ref => {
let {
style,
type = 'info',
visible = true,
theme: themeOverrides,
onLayout,
padding = 'normal',
disabled,
...rest
} = _ref;
const theme = (0, _theming.useInternalTheme)(themeOverrides);
const {
current: shown
} = React.useRef(new _reactNative.Animated.Value(visible ? 1 : 0));
let {
current: textHeight
} = React.useRef(0);
const {
scale
} = theme.animation;
const {
maxFontSizeMultiplier = 1.5
} = rest;
React.useEffect(() => {
if (visible) {
// show text
_reactNative.Animated.timing(shown, {
toValue: 1,
duration: 150 * scale,
useNativeDriver: true
}).start();
} else {
// hide text
_reactNative.Animated.timing(shown, {
toValue: 0,
duration: 180 * scale,
useNativeDriver: true
}).start();
}
}, [visible, scale, shown]);
const handleTextLayout = e => {
onLayout === null || onLayout === void 0 ? void 0 : onLayout(e);
textHeight = e.nativeEvent.layout.height;
};
const textColor = (0, _utils.getTextColor)({
theme,
disabled,
type
});
return /*#__PURE__*/React.createElement(_AnimatedText.default, _extends({
onLayout: handleTextLayout,
style: [styles.text, padding !== 'none' ? styles.padding : {}, {
color: textColor,
opacity: shown,
transform: visible && type === 'error' ? [{
translateY: shown.interpolate({
inputRange: [0, 1],
outputRange: [-textHeight / 2, 0]
})
}] : []
}, style],
maxFontSizeMultiplier: maxFontSizeMultiplier
}, rest), rest.children);
};
const styles = _reactNative.StyleSheet.create({
text: {
fontSize: 12,
paddingVertical: 4
},
padding: {
paddingHorizontal: 12
}
});
var _default = HelperText;
exports.default = _default;
//# sourceMappingURL=HelperText.js.map