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added RTL direction support #54

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added RTL direction support #54

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dd3fc51
added RTL direction support
Feb 29, 2024
5ce1503
small changes on index.tsx to align with the standards
Feb 29, 2024
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1 change: 1 addition & 0 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -55,6 +55,7 @@ MarqueeText component basically inherits TextProps and the followings are additi
| delay | number | true | 0 | Duration to delay the animation after render, in milliseconds
| onMarqueeComplete | function | true | void | A callback for when the marquee finishes animation and stops
| consecutive | boolean | true | false | A flag to enable consecutive mode that imitates the default behavior of HTML marquee element. Does not take effect if loop is false
| isRTL | boolean | true | I18nManager.isRTL | A flag to override animation direction

## Methods

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10 changes: 9 additions & 1 deletion src/index.tsx
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Expand Up @@ -11,6 +11,7 @@ import {
StyleSheet,
Text,
View,
I18nManager,
} from 'react-native';

const { UIManager } = NativeModules;
Expand Down Expand Up @@ -41,6 +42,10 @@ export interface MarqueeTextProps extends TextProps {
* Does not take effect if loop is false
*/
consecutive?: boolean;
/**
* A flag to override animation direction
*/
isRTL?: boolean;
}

export interface MarqueeTextHandles {
Expand Down Expand Up @@ -108,6 +113,7 @@ const MarqueeText = (props: MarqueeTextProps, ref: Ref<MarqueeTextHandles>): JSX
loop = true,
delay = 0,
consecutive = false,
isRTL = I18nManager.isRTL,
onMarqueeComplete,
children,
...restProps
Expand All @@ -127,12 +133,14 @@ const MarqueeText = (props: MarqueeTextProps, ref: Ref<MarqueeTextHandles>): JSX
loop: boolean;
delay: number;
consecutive: boolean;
isRTL: boolean;
}>({
marqueeOnStart,
speed,
loop,
delay,
consecutive,
isRTL,
});

const stopAnimation = useCallback(() => {
Expand Down Expand Up @@ -163,7 +171,7 @@ const MarqueeText = (props: MarqueeTextProps, ref: Ref<MarqueeTextHandles>): JSX
animatedValue.current,
{
...config.current,
toValue: isConsecutive ? -marqueeTextWidth.current : -distance,
toValue: (isConsecutive ? marqueeTextWidth.current : distance) * (config.current.isRTL ? 1 : -1),
duration: isConsecutive ? baseDuration * (marqueeTextWidth.current / distance) : baseDuration,
},
isConsecutive
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