react-native-paper
Version:
Material design for React Native
198 lines (195 loc) • 6.82 kB
JavaScript
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = void 0;
var React = _interopRequireWildcard(require("react"));
var _reactNative = require("react-native");
var _theming = require("../core/theming");
function _interopRequireWildcard(e, t) { if ("function" == typeof WeakMap) var r = new WeakMap(), n = new WeakMap(); return (_interopRequireWildcard = function (e, t) { if (!t && e && e.__esModule) return e; var o, i, f = { __proto__: null, default: e }; if (null === e || "object" != typeof e && "function" != typeof e) return f; if (o = t ? n : r) { if (o.has(e)) return o.get(e); o.set(e, f); } for (const t in e) "default" !== t && {}.hasOwnProperty.call(e, t) && ((i = (o = Object.defineProperty) && Object.getOwnPropertyDescriptor(e, t)) && (i.get || i.set) ? o(f, t, i) : f[t] = e[t]); return f; })(e, t); }
function _extends() { return _extends = Object.assign ? Object.assign.bind() : function (n) { for (var e = 1; e < arguments.length; e++) { var t = arguments[e]; for (var r in t) ({}).hasOwnProperty.call(t, r) && (n[r] = t[r]); } return n; }, _extends.apply(null, arguments); }
const DURATION = 2400;
/**
* Activity indicator is used to present progress of some activity in the app.
* It can be used as a drop-in replacement for the ActivityIndicator shipped with React Native.
*
* ## Usage
* ```js
* import * as React from 'react';
* import { ActivityIndicator, MD2Colors } from 'react-native-paper';
*
* const MyComponent = () => (
* <ActivityIndicator animating={true} color={MD2Colors.red800} />
* );
*
* export default MyComponent;
* ```
*/
const ActivityIndicator = ({
animating = true,
color: indicatorColor,
hidesWhenStopped = true,
size: indicatorSize = 'small',
style,
theme: themeOverrides,
...rest
}) => {
var _theme$colors;
const theme = (0, _theming.useInternalTheme)(themeOverrides);
const {
current: timer
} = React.useRef(new _reactNative.Animated.Value(0));
const {
current: fade
} = React.useRef(new _reactNative.Animated.Value(!animating && hidesWhenStopped ? 0 : 1));
const rotation = React.useRef(undefined);
const {
animation: {
scale
}
} = theme;
const startRotation = React.useCallback(() => {
// Show indicator
_reactNative.Animated.timing(fade, {
duration: 200 * scale,
toValue: 1,
isInteraction: false,
useNativeDriver: true
}).start();
// Circular animation in loop
if (rotation.current) {
timer.setValue(0);
// $FlowFixMe
_reactNative.Animated.loop(rotation.current).start();
}
}, [scale, fade, timer]);
const stopRotation = () => {
if (rotation.current) {
rotation.current.stop();
}
};
React.useEffect(() => {
if (rotation.current === undefined) {
// Circular animation in loop
rotation.current = _reactNative.Animated.timing(timer, {
duration: DURATION,
easing: _reactNative.Easing.linear,
// Animated.loop does not work if useNativeDriver is true on web
useNativeDriver: _reactNative.Platform.OS !== 'web',
toValue: 1,
isInteraction: false
});
}
if (animating) {
startRotation();
} else if (hidesWhenStopped) {
// Hide indicator first and then stop rotation
_reactNative.Animated.timing(fade, {
duration: 200 * scale,
toValue: 0,
useNativeDriver: true,
isInteraction: false
}).start(stopRotation);
} else {
stopRotation();
}
}, [animating, fade, hidesWhenStopped, startRotation, scale, timer]);
const color = indicatorColor || ((_theme$colors = theme.colors) === null || _theme$colors === void 0 ? void 0 : _theme$colors.primary);
const size = typeof indicatorSize === 'string' ? indicatorSize === 'small' ? 24 : 48 : indicatorSize ? indicatorSize : 24;
const frames = 60 * DURATION / 1000;
const easing = _reactNative.Easing.bezier(0.4, 0.0, 0.7, 1.0);
const containerStyle = {
width: size,
height: size / 2,
overflow: 'hidden'
};
return /*#__PURE__*/React.createElement(_reactNative.View, _extends({
style: [styles.container, style]
}, rest, {
accessible: true,
accessibilityRole: "progressbar",
accessibilityState: {
busy: animating
}
}), /*#__PURE__*/React.createElement(_reactNative.Animated.View, {
style: [{
width: size,
height: size,
opacity: fade
}],
collapsable: false
}, [0, 1].map(index => {
// Thanks to https://github.com/n4kz/react-native-indicators for the great work
const inputRange = Array.from(new Array(frames), (_, frameIndex) => frameIndex / (frames - 1));
const outputRange = Array.from(new Array(frames), (_, frameIndex) => {
let progress = 2 * frameIndex / (frames - 1);
const rotation = index ? +(360 - 15) : -(180 - 15);
if (progress > 1.0) {
progress = 2.0 - progress;
}
const direction = index ? -1 : +1;
return `${direction * (180 - 30) * easing(progress) + rotation}deg`;
});
const layerStyle = {
width: size,
height: size,
transform: [{
rotate: timer.interpolate({
inputRange: [0, 1],
outputRange: [`${0 + 30 + 15}deg`, `${2 * 360 + 30 + 15}deg`]
})
}]
};
const viewportStyle = {
width: size,
height: size,
transform: [{
translateY: index ? -size / 2 : 0
}, {
rotate: timer.interpolate({
inputRange,
outputRange
})
}]
};
const offsetStyle = index ? {
top: size / 2
} : null;
const lineStyle = {
width: size,
height: size,
borderColor: color,
borderWidth: size / 10,
borderRadius: size / 2
};
return /*#__PURE__*/React.createElement(_reactNative.Animated.View, {
key: index,
style: [styles.layer]
}, /*#__PURE__*/React.createElement(_reactNative.Animated.View, {
style: layerStyle
}, /*#__PURE__*/React.createElement(_reactNative.Animated.View, {
style: [containerStyle, offsetStyle],
collapsable: false
}, /*#__PURE__*/React.createElement(_reactNative.Animated.View, {
style: viewportStyle
}, /*#__PURE__*/React.createElement(_reactNative.Animated.View, {
style: containerStyle,
collapsable: false
}, /*#__PURE__*/React.createElement(_reactNative.Animated.View, {
style: lineStyle
}))))));
})));
};
const styles = _reactNative.StyleSheet.create({
container: {
justifyContent: 'center',
alignItems: 'center'
},
layer: {
..._reactNative.StyleSheet.absoluteFillObject,
justifyContent: 'center',
alignItems: 'center'
}
});
var _default = exports.default = ActivityIndicator;
//# sourceMappingURL=ActivityIndicator.js.map