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import {
AccessibilityProps,
ActivityIndicator,
Animated,
Easing,
StyleProp,
Text,
View,
ViewStyle,
} from 'react-native';
import { cn } from '@sb/libs/utils';
import Svg, { Circle, Path } from 'react-native-svg';
import { LoaderNativeProps, LoaderSize } from './Loader.native.type';
const Loader: FC<LoaderNativeProps> = ({
id,
style,
content,
value = 0,
textStyle,
color = 'white',
shadow = false,
size = 'medium',
animated = true,
indeterminate = true,
showPercentage = false,
loaderPosition = 'top',
useNativeIndeterminate = true,
percentagePosition = 'center',
}) => {
const isDeterminate = value || !indeterminate;
const dimensionMap: Record<LoaderSize, { size: number; strokeWidth: number }> = {
small: {
size: 32,
strokeWidth: 2,
},
medium: {
size: 44,
strokeWidth: 3,
},
large: {
size: 52,
strokeWidth: 4,
},
};
const fontSizeMap: Record<LoaderSize, string> = {
small: 'text-xs font-normal',
medium: 'text-sm font-semibold',
large: 'text-md font-Bold',
};
const fontSize = fontSizeMap[size];
const dimension = dimensionMap[size];
const containerClasses = cn(
'flex flex-col items-center justify-center p-4',
{
'flex-row gap-2': loaderPosition === 'left',
'flex-row-reverse gap-2': loaderPosition === 'right',
'flex-col-reverse': loaderPosition === 'bottom',
'flex-col': loaderPosition === 'top',
},
style
);
const wrapperClasses = cn('relative flex flex-col items-center justify-center', {
'flex-row-reverse gap-2': percentagePosition === 'left',
'flex-row gap-2': percentagePosition === 'right',
'flex-col': percentagePosition === 'bottom',
'flex-col-reverse': percentagePosition === 'top',
});
const loaderStyles: StyleProp<ViewStyle> = {
borderColor: color,
borderTopColor: 'transparent',
borderStyle: 'solid',
transform: animated && indeterminate ? [{ rotate: '360deg' }] : undefined,
...(shadow && {
shadowColor: color,
shadowOffset: { width: 0, height: 2 },
shadowOpacity: 0.4,
shadowRadius: 4,
elevation: 3,
}),
...(isDeterminate ? { borderWidth: 0 } : {}),
};
const percentageTextClasses = cn(
'font-semibold m-2',
{
'absolute inset-0 flex items-center justify-center text-center':
percentagePosition === 'center',
},
fontSize,
textStyle
);
const accessibilityProps: AccessibilityProps = {
accessibilityRole: 'progressbar',
accessibilityLabel: `${id} loading indicator`,
accessibilityValue: isDeterminate
? {
min: 0,
max: 100,
now: value,
text: `${value}% complete`,
}
: {
text: 'Loading in progress',
},
};
const rotation = useRef(new Animated.Value(0)).current;
useEffect(() => {
const animation = Animated.loop(
Animated.timing(rotation, {
toValue: 1,
duration: 1000,
easing: Easing.linear,
useNativeDriver: true,
})
);
animation.start();
return () => animation.stop();
}, [rotation]);
const rotateInterpolate = rotation.interpolate({
inputRange: [0, 1],
outputRange: ['0deg', '360deg'],
});
return (
<View
className={containerClasses}
accessibilityLiveRegion="polite"
accessibilityLabel="Loader status"
>
<View className={wrapperClasses} accessibilityRole="progressbar">
{isDeterminate ? (
<View style={loaderStyles} {...accessibilityProps} testID="loader-svg">
<Svg width={dimension.size} height={dimension.size} viewBox="0 0 36 36">
<Circle
cx="18"
cy="18"
r="16"
stroke="white"
strokeWidth={dimension.strokeWidth}
fill="none"
opacity={0.3}
/>
<Circle
cx="18"
cy="18"
r="16"
stroke="white"
strokeWidth={dimension.strokeWidth}
fill="none"
strokeDasharray={`${(value / 100) * 100}, 100`}
strokeLinecap="round"
transform="rotate(-90 18 18)"
/>
</Svg>
</View>
) : useNativeIndeterminate ? (
<ActivityIndicator
color={color}
size={size === 'small' ? 'small' : 'large'}
animating={animated}
{...accessibilityProps}
accessibilityLabel="Indeterminate loading indicator"
/>
) : (
<Animated.View
className="items-center justify-center"
style={{
transform: [{ rotate: rotateInterpolate }],
}}
accessibilityLabel="Indeterminate loading indicator"
>
<Svg width={dimension.size} height={dimension.size} viewBox="0 0 28 29" fill="none">
<Path
d="M14 27C7.09644 27 1.5 21.4036 1.5 14.5C1.5 7.59644 7.09644 2 14 2C20.9036 2 26.5 7.59644 26.5 14.5"
stroke={color}
strokeWidth={dimension.strokeWidth / 1.2}
/>
</Svg>
</Animated.View>
)}
{showPercentage && isDeterminate && (
<Text
accessibilityLabel={`Loading Percentage: ${value}`}
className={percentageTextClasses}
style={{ color }}
accessible={false}
>
{value}%
</Text>
)}
</View>
{content && (
<View className="my-2.5">
<Text
className={cn('text-center', fontSize, textStyle)}
accessibilityLabel={`${id} content`}
style={{ color }}
>
{content}
</Text>
</View>
)}
</View>
);
};
export default Loader;
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