@tamagui/react-native-web-lite/dist/esm/vendor/react-native/VirtualizedSectionList/index.js

React Native for Web

import VirtualizedList from "../VirtualizedList";
import * as React from "react";
import { jsx } from "react/jsx-runtime";
const defaultProps = {
  data: [],
  key: null,
  renderItem: null,
  ItemSeparatorComponent: null,
  keyExtractor: null
};
class VirtualizedSectionList extends React.PureComponent {
  scrollToLocation(params) {
    let index = params.itemIndex;
    for (let i = 0; i < params.sectionIndex; i++)
      index += this.props.getItemCount(this.props.sections[i].data) + 2;
    let viewOffset = params.viewOffset || 0;
    if (this._listRef == null)
      return;
    if (params.itemIndex > 0 && this.props.stickySectionHeadersEnabled) {
      const frame = this._listRef.__getFrameMetricsApprox(
        index - params.itemIndex,
        this._listRef.props
      );
      viewOffset += frame.length;
    }
    const toIndexParams = {
      ...params,
      viewOffset,
      index
    };
    this._listRef.scrollToIndex(toIndexParams);
  }
  getListRef() {
    return this._listRef;
  }
  render() {
    const {
      ItemSeparatorComponent,
      SectionSeparatorComponent,
      renderItem: _renderItem,
      renderSectionFooter,
      renderSectionHeader,
      sections: _sections,
      stickySectionHeadersEnabled,
      ...passThroughProps
    } = this.props, listHeaderOffset = this.props.ListHeaderComponent ? 1 : 0, stickyHeaderIndices = this.props.stickySectionHeadersEnabled ? [] : void 0;
    let itemCount = 0;
    for (const section of this.props.sections)
      stickyHeaderIndices?.push(itemCount + listHeaderOffset), itemCount += 2, itemCount += this.props.getItemCount(section.data);
    const renderItem = this._renderItem(itemCount);
    return /* @__PURE__ */ jsx(
      VirtualizedList,
      {
        ...passThroughProps,
        keyExtractor: this._keyExtractor,
        stickyHeaderIndices,
        renderItem,
        data: this.props.sections,
        getItem: (sections, index) => this._getItem(this.props, sections, index),
        getItemCount: () => itemCount,
        onViewableItemsChanged: this.props.onViewableItemsChanged ? this._onViewableItemsChanged : void 0,
        ref: this._captureRef
      }
    );
  }
  _getItem(props, sections, index) {
    if (!sections)
      return null;
    let itemIdx = index - 1;
    for (let i = 0; i < sections.length; i++) {
      const section = sections[i], sectionData = section.data, itemCount = props.getItemCount(sectionData);
      if (itemIdx === -1 || itemIdx === itemCount)
        return section;
      if (itemIdx < itemCount)
        return props.getItem(sectionData, itemIdx);
      itemIdx -= itemCount + 2;
    }
    return null;
  }
  _keyExtractor = (item, index) => (this.props.keyExtractor || this._defaultKeyExtractor)(item, index);
  _defaultKeyExtractor = (item, index) => item.key != null ? item.key : String(index);
  _captureRef = (ref) => {
    this._listRef = ref;
  };
  _renderItem = (itemCount) => ({ item, index }) => index === 0 || index === itemCount - 1 ? null : (this.props.renderItem || this._defaultRenderItem)({ item, index, section: item });
  _defaultRenderItem = ({ item }) => null;
  _onViewableItemsChanged = (info) => {
    this.props.onViewableItemsChanged && this.props.onViewableItemsChanged(info);
  };
}
VirtualizedSectionList.defaultProps = defaultProps;
var VirtualizedSectionList_default = VirtualizedSectionList;
export {
  VirtualizedSectionList_default as default
};
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