react-native-zoom-toolkit
Version:
Smoothly zoom any image, video or component you want!
176 lines (174 loc) • 7.12 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 _reactNativeReanimated = require("react-native-reanimated");
var _reactNativeGestureHandler = require("react-native-gesture-handler");
var _types = require("../../commons/types");
var _clamp = require("../../commons/utils/clamp");
var _getMaxScale = require("../../commons/utils/getMaxScale");
var _getPinchPanningStatus = require("../../commons/utils/getPinchPanningStatus");
var _Reflection = _interopRequireDefault(require("./Reflection"));
var _GalleryItem = _interopRequireDefault(require("./GalleryItem"));
var _context = require("./context");
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
function _getRequireWildcardCache(e) { if ("function" != typeof WeakMap) return null; var r = new WeakMap(), t = new WeakMap(); return (_getRequireWildcardCache = function (e) { return e ? t : r; })(e); }
function _interopRequireWildcard(e, r) { if (!r && e && e.__esModule) return e; if (null === e || "object" != typeof e && "function" != typeof e) return { default: e }; var t = _getRequireWildcardCache(r); if (t && t.has(e)) return t.get(e); var n = { __proto__: null }, a = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var u in e) if ("default" !== u && {}.hasOwnProperty.call(e, u)) { var i = a ? Object.getOwnPropertyDescriptor(e, u) : null; i && (i.get || i.set) ? Object.defineProperty(n, u, i) : n[u] = e[u]; } return n.default = e, t && t.set(e, n), n; }
const Gallery = props => {
const {
reference,
data,
renderItem,
keyExtractor,
initialIndex = 0,
windowSize = 5,
maxScale: userMaxScale = 6,
vertical = false,
tapOnEdgeToItem = true,
pinchCenteringMode = _types.PinchCenteringMode.CLAMP,
allowPinchPanning: pinchPanning,
customTransition,
onIndexChange,
onScroll,
onTap,
onPanStart,
onPanEnd,
onPinchStart,
onPinchEnd,
onSwipe,
onZoomBegin,
onZoomEnd,
onVerticalPull
} = props;
const allowPinchPanning = pinchPanning ?? (0, _getPinchPanningStatus.getPinchPanningStatus)();
const nextItems = Math.floor(windowSize / 2);
const [scrollIndex, setScrollIndex] = (0, _react.useState)(initialIndex);
const {
activeIndex,
fetchIndex,
rootSize,
rootChildSize,
scroll,
translate,
scale,
hasZoomed
} = (0, _react.useContext)(_context.GalleryContext);
const itemSize = (0, _reactNativeReanimated.useDerivedValue)(() => {
return vertical ? rootSize.height.value : rootSize.width.value;
}, [vertical, rootSize]);
const maxScale = (0, _reactNativeReanimated.useDerivedValue)(() => {
if (typeof userMaxScale === 'object') {
if (userMaxScale.length === 0) return 6;
return (0, _getMaxScale.getMaxScale)({
width: rootChildSize.width.value,
height: rootChildSize.height.value
}, userMaxScale[activeIndex.value]);
}
return userMaxScale;
}, [userMaxScale, activeIndex, rootChildSize]);
const measureRoot = e => {
const {
width,
height
} = e.nativeEvent.layout;
rootSize.width.value = width;
rootSize.height.value = height;
const direction = vertical ? height : width;
scroll.value = activeIndex.value * direction;
};
(0, _reactNativeReanimated.useAnimatedReaction)(() => ({
scroll: scroll.value,
itemSize: itemSize.value
}), value => onScroll === null || onScroll === void 0 ? void 0 : onScroll(value.scroll, (data.length - 1) * value.itemSize), [scroll, itemSize]);
(0, _reactNativeReanimated.useAnimatedReaction)(() => activeIndex.value, value => onIndexChange && (0, _reactNativeReanimated.runOnJS)(onIndexChange)(value), [activeIndex]);
(0, _reactNativeReanimated.useAnimatedReaction)(() => fetchIndex.value, value => (0, _reactNativeReanimated.runOnJS)(setScrollIndex)(value), [fetchIndex]);
(0, _reactNativeReanimated.useAnimatedReaction)(() => ({
vertical,
size: {
width: rootSize.width.value,
height: rootSize.height.value
}
}), value => {
const direction = value.vertical ? value.size.height : value.size.width;
scroll.value = activeIndex.value * direction;
}, [vertical, rootSize]);
(0, _reactNativeReanimated.useAnimatedReaction)(() => scale.value, (value, previousValue) => {
if (value !== 1 && !hasZoomed.value) {
hasZoomed.value = true;
onZoomBegin && (0, _reactNativeReanimated.runOnJS)(onZoomBegin)(activeIndex.value);
} else if (value === 1 && previousValue !== 1 && hasZoomed.value) {
hasZoomed.value = false;
onZoomEnd && (0, _reactNativeReanimated.runOnJS)(onZoomEnd)(activeIndex.value);
}
}, [scale]);
// Reference handling
const setIndex = index => {
const clamped = (0, _clamp.clamp)(index, 0, data.length - 1);
activeIndex.value = clamped;
fetchIndex.value = clamped;
scroll.value = clamped * itemSize.value;
};
const requestState = () => ({
width: rootChildSize.width.value,
height: rootChildSize.height.value,
translateX: translate.x.value,
translateY: translate.y.value,
scale: scale.value
});
const reset = (animate = true) => {
translate.x.value = animate ? (0, _reactNativeReanimated.withTiming)(0) : 0;
translate.y.value = animate ? (0, _reactNativeReanimated.withTiming)(0) : 0;
scale.value = animate ? (0, _reactNativeReanimated.withTiming)(1) : 1;
};
(0, _react.useImperativeHandle)(reference, () => ({
setIndex,
reset,
requestState
}));
return /*#__PURE__*/_react.default.createElement(_reactNativeGestureHandler.GestureHandlerRootView, {
style: styles.root,
onLayout: measureRoot
}, data.map((item, index) => {
const inLowerHalf = index < scrollIndex - nextItems;
const inUpperHalf = index > scrollIndex + nextItems;
if (inLowerHalf || inUpperHalf) return null;
const key = (keyExtractor === null || keyExtractor === void 0 ? void 0 : keyExtractor(item, index)) ?? `item-${index}`;
return /*#__PURE__*/_react.default.createElement(_GalleryItem.default, {
key: key,
zIndex: data.length - index,
index: index,
item: item,
vertical: vertical,
renderItem: renderItem,
customTransition: customTransition
});
}), /*#__PURE__*/_react.default.createElement(_Reflection.default, {
maxScale: maxScale,
itemSize: itemSize,
length: data.length,
vertical: vertical,
tapOnEdgeToItem: tapOnEdgeToItem,
allowPinchPanning: allowPinchPanning,
pinchCenteringMode: pinchCenteringMode,
onTap: onTap,
onPanStart: onPanStart,
onPanEnd: onPanEnd,
onPinchStart: onPinchStart,
onPinchEnd: onPinchEnd,
onSwipe: onSwipe,
onVerticalPull: onVerticalPull
}));
};
const styles = _reactNative.StyleSheet.create({
root: {
flex: 1,
justifyContent: 'center',
alignItems: 'center',
overflow: 'hidden'
}
});
var _default = exports.default = Gallery;
//# sourceMappingURL=Gallery.js.map