116 lines
3.5 KiB
TypeScript
116 lines
3.5 KiB
TypeScript
import { RefreshControl } from "react-native";
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import { useCallback, useState } from "react";
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import DraggableFlatList, {
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NestableDraggableFlatList,
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type RenderItemParams,
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} from "react-native-draggable-flatlist";
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import { useUnistyles } from "react-native-unistyles";
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import type { DraggableListProps, DraggableRenderItemInfo } from "./draggable-list.types";
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export type { DraggableListProps, DraggableRenderItemInfo };
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export function DraggableList<T>({
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data,
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keyExtractor,
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renderItem,
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onDragEnd,
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style,
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containerStyle,
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contentContainerStyle,
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testID,
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ListFooterComponent,
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ListHeaderComponent,
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ListEmptyComponent,
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showsVerticalScrollIndicator = true,
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enableDesktopWebScrollbar: _enableDesktopWebScrollbar = false,
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scrollEnabled = true,
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useDragHandle: _useDragHandle = false,
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refreshing,
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onRefresh,
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simultaneousGestureRef,
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waitFor,
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onDragBegin: onDragBeginProp,
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nestable = false,
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}: DraggableListProps<T>) {
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const { theme } = useUnistyles();
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const [isDragging, setIsDragging] = useState(false);
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// Pass the ref directly to DraggableFlatList - it handles gesture
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// coordination internally for nestable lists.
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const simultaneousHandlers = simultaneousGestureRef ? [simultaneousGestureRef] : undefined;
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const handleRenderItem = useCallback(
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({ item, drag, isActive, getIndex }: RenderItemParams<T>) => {
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const index = getIndex() ?? 0;
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const info: DraggableRenderItemInfo<T> = {
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item,
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index,
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drag,
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isActive,
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};
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return renderItem(info);
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},
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[renderItem],
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);
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const handleDragEnd = useCallback(
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({ data: newData }: { data: T[] }) => {
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setIsDragging(false);
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onDragEnd(newData);
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},
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[onDragEnd],
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);
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const handleDragBegin = useCallback(() => {
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setIsDragging(true);
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onDragBeginProp?.();
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}, [onDragBeginProp]);
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const handleRelease = useCallback(() => {
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setIsDragging(false);
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}, []);
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const showRefreshControl = Boolean(onRefresh) && (!isDragging || Boolean(refreshing));
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const resolvedContainerStyle = containerStyle ?? (scrollEnabled ? { flex: 1 } : undefined);
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const shouldShowRefreshControl = showRefreshControl && !nestable;
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const ListComponent: typeof DraggableFlatList = (
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nestable ? (NestableDraggableFlatList as any) : DraggableFlatList
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) as any;
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return (
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<ListComponent
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testID={testID}
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data={data}
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keyExtractor={keyExtractor}
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renderItem={handleRenderItem}
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onDragEnd={handleDragEnd}
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style={style}
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containerStyle={resolvedContainerStyle}
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contentContainerStyle={contentContainerStyle}
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ListFooterComponent={ListFooterComponent}
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ListHeaderComponent={ListHeaderComponent}
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ListEmptyComponent={ListEmptyComponent}
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showsVerticalScrollIndicator={showsVerticalScrollIndicator}
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scrollEnabled={scrollEnabled}
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simultaneousHandlers={simultaneousHandlers}
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// Higher activation distance reduces accidental drag capture while nested
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// lists are inside a scroll container.
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activationDistance={20}
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onDragBegin={handleDragBegin}
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onRelease={handleRelease}
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// @ts-ignore - waitFor is supported by RNGH FlatList but missing from DraggableFlatList types
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waitFor={waitFor}
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refreshControl={
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shouldShowRefreshControl ? (
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<RefreshControl
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refreshing={refreshing ?? false}
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onRefresh={onRefresh}
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tintColor={theme.colors.foregroundMuted}
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colors={[theme.colors.foregroundMuted]}
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/>
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) : undefined
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}
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/>
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);
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}
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