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feat: added initialRangeSelected #153

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feat: added initialRangeSelected #153

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40 changes: 34 additions & 6 deletions index.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -25,11 +25,14 @@ import {
useSelectedRail,
} from './hooks';
import {clamp, getValueForPosition, isLowCloser} from './helpers';
import { useFocusEffect } from '@react-navigation/native';

const trueFunc = () => true;
const falseFunc = () => false;

export interface SliderProps extends ViewProps {
initialLowValue?: number;
initialHighValue?: number;
min: number;
max: number;
minRange?: number;
Expand All @@ -53,6 +56,8 @@ export interface SliderProps extends ViewProps {
const Slider: React.FC<SliderProps> = ({
min,
max,
initialLowValue,
initialHighValue,
minRange = 0,
step,
low: lowProp,
Expand All @@ -78,12 +83,16 @@ const Slider: React.FC<SliderProps> = ({
max,
step,
);

const lowThumbXRef = useRef(new Animated.Value(0));

const highThumbXRef = useRef(new Animated.Value(0));

const pointerX = useRef(new Animated.Value(0)).current;

const {current: lowThumbX} = lowThumbXRef;
const {current: highThumbX} = highThumbXRef;

const gestureStateRef = useRef({isLow: true, lastValue: 0, lastPosition: 0});
const [isPressed, setPressed] = useState(false);

Expand All @@ -97,24 +106,35 @@ const Slider: React.FC<SliderProps> = ({
disableRange,
);


const updateThumbs = useCallback(() => {
const {current: containerWidth} = containerWidthRef;
if (!thumbWidth || !containerWidth) {
return;
}
const {low, high} = inPropsRef.current;

if(initialHighValue && initialLowValue) {
inPropsRef.current.low = initialLowValue;
inPropsRef.current.high = initialHighValue
}
const low = inPropsRef.current.low;
const high = inPropsRef.current.high;
console.log(low, high, max, min)

if (!disableRange) {
const {current: highThumbX} = highThumbXRef;
const highPosition =
((high - min) / (max - min)) * (containerWidth - thumbWidth);
highThumbX.setValue(highPosition);

}
const {current: lowThumbX} = lowThumbXRef;
const lowPosition =
((low - min) / (max - min)) * (containerWidth - thumbWidth);
lowThumbX.setValue(lowPosition);
updateSelectedRail();
updateSelectedRail()
onValueChanged?.(low, high, false);

}, [
disableRange,
inPropsRef,
Expand All @@ -125,19 +145,24 @@ const Slider: React.FC<SliderProps> = ({
updateSelectedRail,
]);


useEffect(() => {
const {lowPrev, highPrev} = inPropsRefPrev;

if (
(lowProp !== undefined && lowProp !== lowPrev) ||
(highProp !== undefined && highProp !== highPrev)
) {
updateThumbs();
}
}, [highProp, inPropsRefPrev.lowPrev, inPropsRefPrev.highPrev, lowProp]);

}, [highProp
, inPropsRefPrev.lowPrev,
inPropsRefPrev.highPrev, lowProp, initialHighValue, initialLowValue]);

useEffect(() => {
updateThumbs();
}, [updateThumbs]);
}, [updateThumbs, initialHighValue, initialLowValue]);


const handleContainerLayout = useWidthLayout(containerWidthRef, updateThumbs);
const handleThumbLayout = useCallback(
Expand Down Expand Up @@ -295,6 +320,9 @@ const Slider: React.FC<SliderProps> = ({
],
);




return (
<View {...restProps}>
<View {...labelContainerProps}>
Expand Down