react-native-draggable-flatlist
Version:
A drag-and-drop-enabled FlatList component for React Native
144 lines (143 loc) • 6.78 kB
JavaScript
;
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__assign = Object.assign || function(t) {
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s = arguments[i];
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t[p] = s[p];
}
return t;
};
return __assign.apply(this, arguments);
};
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
};
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
var react_1 = __importStar(require("react"));
var react_native_1 = require("react-native");
var react_native_reanimated_1 = __importStar(require("react-native-reanimated"));
var draggableFlatListContext_1 = require("../context/draggableFlatListContext");
var constants_1 = require("../constants");
var useCellTranslate_1 = require("../hooks/useCellTranslate");
var utils_1 = require("../utils");
var refContext_1 = require("../context/refContext");
var animatedValueContext_1 = require("../context/animatedValueContext");
var cellContext_1 = __importDefault(require("../context/cellContext"));
function CellRendererComponent(props) {
var item = props.item, index = props.index, onLayout = props.onLayout, children = props.children;
var currentIndexAnim = react_native_reanimated_1.useValue(index);
react_1.useLayoutEffect(function () {
currentIndexAnim.setValue(index);
}, [index, currentIndexAnim]);
var viewRef = react_1.useRef(null);
var _a = refContext_1.useRefs(), cellDataRef = _a.cellDataRef, propsRef = _a.propsRef, scrollOffsetRef = _a.scrollOffsetRef, containerRef = _a.containerRef;
var horizontalAnim = animatedValueContext_1.useAnimatedValues().horizontalAnim;
var _b = draggableFlatListContext_1.useDraggableFlatListContext(), activeKey = _b.activeKey, keyExtractor = _b.keyExtractor, horizontal = _b.horizontal;
var key = keyExtractor(item, index);
var offset = react_native_reanimated_1.useValue(-1);
var size = react_native_reanimated_1.useValue(-1);
var translate = useCellTranslate_1.useCellTranslate({
cellOffset: offset,
cellSize: size,
cellIndex: currentIndexAnim,
});
react_1.useMemo(function () {
// prevent flicker on web
if (constants_1.isWeb)
translate.setValue(0);
}, [index]); //eslint-disable-line react-hooks/exhaustive-deps
var isActive = activeKey === key;
var style = react_1.useMemo(function () { return ({
transform: [
{ translateX: react_native_reanimated_1.cond(horizontalAnim, translate, 0) },
{ translateY: react_native_reanimated_1.cond(horizontalAnim, 0, translate) },
],
}); }, [horizontalAnim, translate]);
var updateCellMeasurements = react_1.useCallback(function () {
var _a;
var onSuccess = function (x, y, w, h) {
if (constants_1.isWeb && horizontal)
x += scrollOffsetRef.current;
var cellOffset = horizontal ? x : y;
var cellSize = horizontal ? w : h;
cellDataRef.current.set(key, {
measurements: { size: cellSize, offset: cellOffset },
});
size.setValue(cellSize);
offset.setValue(cellOffset);
};
var onFail = function () {
var _a;
if ((_a = propsRef.current) === null || _a === void 0 ? void 0 : _a.debug) {
console.log("## on measure fail, index: " + index);
}
};
// findNodeHandle is being deprecated. This is no longer necessary if using reanimated v2
// remove once v1 is no longer supported
var containerNode = containerRef.current;
var viewNode = constants_1.isReanimatedV2
? viewRef.current
: (_a = viewRef.current) === null || _a === void 0 ? void 0 : _a.getNode();
//@ts-ignore
var nodeHandle = constants_1.isReanimatedV2
? containerNode
: react_native_1.findNodeHandle(containerNode);
if (viewNode && nodeHandle) {
//@ts-ignore
viewNode.measureLayout(nodeHandle, onSuccess, onFail);
}
}, [
cellDataRef,
horizontal,
index,
key,
offset,
propsRef,
size,
scrollOffsetRef,
containerRef,
]);
react_1.useEffect(function () {
if (constants_1.isWeb) {
// onLayout isn't called on web when the cell index changes, so we manually re-measure
updateCellMeasurements();
}
}, [index, updateCellMeasurements]);
var onCellLayout = react_1.useCallback(function (e) {
updateCellMeasurements();
onLayout(e);
}, [updateCellMeasurements, onLayout]);
// changing zIndex crashes android:
// https://github.com/facebook/react-native/issues/28751
return (react_1.default.createElement(react_native_reanimated_1.default.View, __assign({}, props, { ref: viewRef, onLayout: onCellLayout, style: [
constants_1.isAndroid && { elevation: isActive ? 1 : 0 },
{ flexDirection: horizontal ? "row" : "column" },
(constants_1.isWeb || constants_1.isIOS) && { zIndex: isActive ? 999 : 0 },
], pointerEvents: activeKey ? "none" : "auto" }),
react_1.default.createElement(react_native_reanimated_1.default.View, __assign({}, props, {
// Including both animated styles and non-animated styles causes react-native-web
// to ignore updates in non-animated styles. Solution is to separate animated styles from non-animated styles
style: [props.style, style] }),
react_1.default.createElement(cellContext_1.default, { isActive: isActive }, children))));
}
exports.default = utils_1.typedMemo(CellRendererComponent);