mirror of
https://github.com/zhigang1992/react-native-web.git
synced 2026-04-28 12:24:51 +08:00
[change] ListView update
This commit is contained in:
Nicolas Gallagher
@@ -1,22 +0,0 @@
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import ListViewDataSource from './ListViewDataSource';
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import ScrollView from '../ScrollView';
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import { arrayOf, bool, func, instanceOf, number } from 'prop-types';
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export default {
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...ScrollView.propTypes,
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dataSource: instanceOf(ListViewDataSource).isRequired,
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renderSeparator: func,
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renderRow: func.isRequired,
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initialListSize: number,
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onEndReached: func,
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onEndReachedThreshold: number,
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pageSize: number,
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renderFooter: func,
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renderHeader: func,
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renderSectionHeader: func,
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renderScrollComponent: func.isRequired,
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scrollRenderAheadDistance: number,
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onChangeVisibleRows: func,
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removeClippedSubviews: bool,
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stickyHeaderIndices: arrayOf(number)
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};
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@@ -1,444 +1,11 @@
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import applyNativeMethods from '../../modules/applyNativeMethods';
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import ListViewDataSource from './ListViewDataSource';
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import ListViewPropTypes from './ListViewPropTypes';
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import ScrollView from '../ScrollView';
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import StaticRenderer from '../../modules/StaticRenderer';
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import React, { Component } from 'react';
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import isEmpty from 'fbjs/lib/isEmpty';
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import requestAnimationFrame from 'fbjs/lib/requestAnimationFrame';
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/**
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* Copyright (c) 2016-present, Nicolas Gallagher.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*
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* @flow
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*/
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const DEFAULT_PAGE_SIZE = 1;
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const DEFAULT_INITIAL_ROWS = 10;
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const DEFAULT_SCROLL_RENDER_AHEAD = 1000;
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const DEFAULT_END_REACHED_THRESHOLD = 1000;
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const DEFAULT_SCROLL_CALLBACK_THROTTLE = 50;
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class ListView extends Component {
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static propTypes = ListViewPropTypes;
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static defaultProps = {
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initialListSize: DEFAULT_INITIAL_ROWS,
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pageSize: DEFAULT_PAGE_SIZE,
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renderScrollComponent: props => <ScrollView {...props} />,
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scrollRenderAheadDistance: DEFAULT_SCROLL_RENDER_AHEAD,
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onEndReachedThreshold: DEFAULT_END_REACHED_THRESHOLD,
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scrollEventThrottle: DEFAULT_SCROLL_CALLBACK_THROTTLE,
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removeClippedSubviews: true,
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stickyHeaderIndices: []
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};
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static DataSource = ListViewDataSource;
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constructor(props) {
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super(props);
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this.state = {
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curRenderedRowsCount: this.props.initialListSize,
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highlightedRow: {}
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};
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this.onRowHighlighted = (sectionId, rowId) => this._onRowHighlighted(sectionId, rowId);
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this.scrollProperties = {};
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}
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componentWillMount() {
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// this data should never trigger a render pass, so don't put in state
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this.scrollProperties = {
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visibleLength: null,
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contentLength: null,
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offset: 0
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};
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this._childFrames = [];
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this._visibleRows = {};
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this._prevRenderedRowsCount = 0;
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this._sentEndForContentLength = null;
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}
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componentDidMount() {
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// do this in animation frame until componentDidMount actually runs after
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// the component is laid out
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requestAnimationFrame(() => {
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this._measureAndUpdateScrollProps();
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});
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}
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componentWillReceiveProps(nextProps: Object) {
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if (
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this.props.dataSource !== nextProps.dataSource ||
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this.props.initialListSize !== nextProps.initialListSize
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) {
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this.setState(
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(state, props) => {
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this._prevRenderedRowsCount = 0;
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return {
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curRenderedRowsCount: Math.min(
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Math.max(state.curRenderedRowsCount, props.initialListSize),
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props.enableEmptySections
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? props.dataSource.getRowAndSectionCount()
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: props.dataSource.getRowCount()
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)
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};
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},
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() => this._renderMoreRowsIfNeeded()
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);
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}
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}
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componentDidUpdate() {
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requestAnimationFrame(() => {
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this._measureAndUpdateScrollProps();
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});
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}
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getScrollResponder() {
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return this._scrollViewRef && this._scrollViewRef.getScrollResponder();
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}
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scrollTo(...args) {
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return this._scrollViewRef && this._scrollViewRef.scrollTo(...args);
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}
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setNativeProps(props) {
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return this._scrollViewRef && this._scrollViewRef.setNativeProps(props);
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}
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_onRowHighlighted = (sectionId, rowId) => {
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this.setState({ highlightedRow: { sectionId, rowId } });
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};
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renderSectionHeaderFn = (data, sectionID) => {
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return () => this.props.renderSectionHeader(data, sectionID);
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};
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renderRowFn = (data, sectionID, rowID) => {
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return () => this.props.renderRow(data, sectionID, rowID, this._onRowHighlighted);
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};
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render() {
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const children = [];
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const {
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dataSource,
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enableEmptySections,
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renderFooter,
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renderHeader,
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renderScrollComponent,
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renderSectionHeader,
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renderSeparator,
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/* eslint-disable */
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initialListSize,
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onChangeVisibleRows,
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onEndReached,
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onEndReachedThreshold,
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onKeyboardDidHide,
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onKeyboardDidShow,
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onKeyboardWillHide,
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onKeyboardWillShow,
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pageSize,
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renderRow,
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scrollRenderAheadDistance,
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stickyHeaderIndices,
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/* eslint-enable */
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...scrollProps
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} = this.props;
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const allRowIDs = dataSource.rowIdentities;
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let rowCount = 0;
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const sectionHeaderIndices = [];
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const header = renderHeader && renderHeader();
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const footer = renderFooter && renderFooter();
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let totalIndex = header ? 1 : 0;
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for (let sectionIdx = 0; sectionIdx < allRowIDs.length; sectionIdx++) {
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const sectionID = dataSource.sectionIdentities[sectionIdx];
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const rowIDs = allRowIDs[sectionIdx];
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if (rowIDs.length === 0) {
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if (enableEmptySections === undefined) {
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const warning = require('fbjs/lib/warning');
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warning(
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false,
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'In next release empty section headers will be rendered.' +
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" In this release you can use 'enableEmptySections' flag to render empty section headers."
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);
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continue;
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} else {
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const invariant = require('fbjs/lib/invariant');
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invariant(
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enableEmptySections,
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"In next release 'enableEmptySections' flag will be deprecated," +
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' empty section headers will always be rendered. If empty section headers' +
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' are not desirable their indices should be excluded from sectionIDs object.' +
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" In this release 'enableEmptySections' may only have value 'true'" +
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' to allow empty section headers rendering.'
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);
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}
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}
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if (renderSectionHeader) {
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const shouldUpdateHeader =
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rowCount >= this._prevRenderedRowsCount &&
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dataSource.sectionHeaderShouldUpdate(sectionIdx);
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children.push(
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<StaticRenderer
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key={`s_${sectionID}`}
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render={this.renderSectionHeaderFn(
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dataSource.getSectionHeaderData(sectionIdx),
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sectionID
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)}
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shouldUpdate={!!shouldUpdateHeader}
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/>
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);
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sectionHeaderIndices.push(totalIndex++);
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}
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for (let rowIdx = 0; rowIdx < rowIDs.length; rowIdx++) {
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const rowID = rowIDs[rowIdx];
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const comboID = `${sectionID}_${rowID}`;
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const shouldUpdateRow =
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rowCount >= this._prevRenderedRowsCount && dataSource.rowShouldUpdate(sectionIdx, rowIdx);
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const row = (
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<StaticRenderer
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key={`r_${comboID}`}
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render={this.renderRowFn(dataSource.getRowData(sectionIdx, rowIdx), sectionID, rowID)}
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shouldUpdate={!!shouldUpdateRow}
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/>
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);
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children.push(row);
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totalIndex++;
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if (
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renderSeparator &&
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(rowIdx !== rowIDs.length - 1 || sectionIdx === allRowIDs.length - 1)
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) {
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const adjacentRowHighlighted =
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this.state.highlightedRow.sectionID === sectionID &&
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(this.state.highlightedRow.rowID === rowID ||
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this.state.highlightedRow.rowID === rowIDs[rowIdx + 1]);
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const separator = renderSeparator(sectionID, rowID, adjacentRowHighlighted);
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if (separator) {
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children.push(separator);
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totalIndex++;
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}
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}
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if (++rowCount === this.state.curRenderedRowsCount) {
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break;
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}
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}
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if (rowCount >= this.state.curRenderedRowsCount) {
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break;
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}
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}
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scrollProps.onScroll = this._onScroll;
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return React.cloneElement(
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renderScrollComponent(scrollProps),
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{
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ref: this._setScrollViewRef,
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onContentSizeChange: this._onContentSizeChange,
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onLayout: this._onLayout
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},
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header,
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children,
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footer
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);
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}
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_measureAndUpdateScrollProps() {
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const scrollComponent = this.getScrollResponder();
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if (!scrollComponent || !scrollComponent.getInnerViewNode) {
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return;
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}
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this._updateVisibleRows();
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}
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_onLayout = (event: Object) => {
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const { width, height } = event.nativeEvent.layout;
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const visibleLength = !this.props.horizontal ? height : width;
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if (visibleLength !== this.scrollProperties.visibleLength) {
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this.scrollProperties.visibleLength = visibleLength;
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this._updateVisibleRows();
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this._renderMoreRowsIfNeeded();
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}
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this.props.onLayout && this.props.onLayout(event);
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};
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_updateVisibleRows(updatedFrames?: Array<Object>) {
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if (!this.props.onChangeVisibleRows) {
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return; // No need to compute visible rows if there is no callback
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}
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if (updatedFrames) {
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updatedFrames.forEach(newFrame => {
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this._childFrames[newFrame.index] = Object.assign({}, newFrame);
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});
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}
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const isVertical = !this.props.horizontal;
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const dataSource = this.props.dataSource;
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const visibleMin = this.scrollProperties.offset;
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const visibleMax = visibleMin + this.scrollProperties.visibleLength;
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const allRowIDs = dataSource.rowIdentities;
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const header = this.props.renderHeader && this.props.renderHeader();
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let totalIndex = header ? 1 : 0;
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let visibilityChanged = false;
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const changedRows = {};
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for (let sectionIdx = 0; sectionIdx < allRowIDs.length; sectionIdx++) {
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const rowIDs = allRowIDs[sectionIdx];
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if (rowIDs.length === 0) {
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continue;
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}
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const sectionID = dataSource.sectionIdentities[sectionIdx];
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if (this.props.renderSectionHeader) {
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totalIndex++;
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}
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let visibleSection = this._visibleRows[sectionID];
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if (!visibleSection) {
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visibleSection = {};
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}
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for (let rowIdx = 0; rowIdx < rowIDs.length; rowIdx++) {
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const rowID = rowIDs[rowIdx];
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const frame = this._childFrames[totalIndex];
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totalIndex++;
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if (
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this.props.renderSeparator &&
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(rowIdx !== rowIDs.length - 1 || sectionIdx === allRowIDs.length - 1)
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) {
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totalIndex++;
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}
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if (!frame) {
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break;
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}
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const rowVisible = visibleSection[rowID];
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const min = isVertical ? frame.y : frame.x;
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const max = min + (isVertical ? frame.height : frame.width);
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if ((!min && !max) || min === max) {
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break;
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}
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if (min > visibleMax || max < visibleMin) {
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if (rowVisible) {
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visibilityChanged = true;
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delete visibleSection[rowID];
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if (!changedRows[sectionID]) {
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changedRows[sectionID] = {};
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}
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changedRows[sectionID][rowID] = false;
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}
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} else if (!rowVisible) {
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visibilityChanged = true;
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visibleSection[rowID] = true;
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if (!changedRows[sectionID]) {
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changedRows[sectionID] = {};
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}
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changedRows[sectionID][rowID] = true;
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}
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}
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if (!isEmpty(visibleSection)) {
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this._visibleRows[sectionID] = visibleSection;
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} else if (this._visibleRows[sectionID]) {
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delete this._visibleRows[sectionID];
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}
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}
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visibilityChanged && this.props.onChangeVisibleRows(this._visibleRows, changedRows);
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}
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_onContentSizeChange = (width: number, height: number) => {
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const contentLength = !this.props.horizontal ? height : width;
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if (contentLength !== this.scrollProperties.contentLength) {
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this.scrollProperties.contentLength = contentLength;
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this._updateVisibleRows();
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this._renderMoreRowsIfNeeded();
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}
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this.props.onContentSizeChange && this.props.onContentSizeChange(width, height);
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};
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_getDistanceFromEnd(scrollProperties: Object) {
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return (
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scrollProperties.contentLength - scrollProperties.visibleLength - scrollProperties.offset
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);
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}
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_maybeCallOnEndReached(event?: Object) {
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if (
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this.props.onEndReached &&
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this.scrollProperties.contentLength !== this._sentEndForContentLength &&
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this._getDistanceFromEnd(this.scrollProperties) < this.props.onEndReachedThreshold &&
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this.state.curRenderedRowsCount ===
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(this.props.enableEmptySections
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? this.props.dataSource.getRowAndSectionCount()
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: this.props.dataSource.getRowCount())
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) {
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this._sentEndForContentLength = this.scrollProperties.contentLength;
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this.props.onEndReached(event);
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return true;
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}
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return false;
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}
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_renderMoreRowsIfNeeded() {
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if (
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this.scrollProperties.contentLength === null ||
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this.scrollProperties.visibleLength === null ||
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this.state.curRenderedRowsCount ===
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(this.props.enableEmptySections
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? this.props.dataSource.getRowAndSectionCount()
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: this.props.dataSource.getRowCount())
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) {
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this._maybeCallOnEndReached();
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return;
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}
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const distanceFromEnd = this._getDistanceFromEnd(this.scrollProperties);
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if (distanceFromEnd < this.props.scrollRenderAheadDistance) {
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this._pageInNewRows();
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}
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}
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_pageInNewRows() {
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this.setState(
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(state, props) => {
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const rowsToRender = Math.min(
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state.curRenderedRowsCount + props.pageSize,
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props.enableEmptySections
|
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? props.dataSource.getRowAndSectionCount()
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: props.dataSource.getRowCount()
|
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);
|
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this._prevRenderedRowsCount = state.curRenderedRowsCount;
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return {
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||||
curRenderedRowsCount: rowsToRender
|
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};
|
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},
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||||
() => {
|
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this._measureAndUpdateScrollProps();
|
||||
this._prevRenderedRowsCount = this.state.curRenderedRowsCount;
|
||||
}
|
||||
);
|
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}
|
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|
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_onScroll = (e: Object) => {
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const isVertical = !this.props.horizontal;
|
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this.scrollProperties.visibleLength =
|
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e.nativeEvent.layoutMeasurement[isVertical ? 'height' : 'width'];
|
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this.scrollProperties.contentLength =
|
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e.nativeEvent.contentSize[isVertical ? 'height' : 'width'];
|
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this.scrollProperties.offset = e.nativeEvent.contentOffset[isVertical ? 'y' : 'x'];
|
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this._updateVisibleRows(e.nativeEvent.updatedChildFrames);
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if (!this._maybeCallOnEndReached(e)) {
|
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this._renderMoreRowsIfNeeded();
|
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}
|
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|
||||
if (
|
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this.props.onEndReached &&
|
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this._getDistanceFromEnd(this.scrollProperties) > this.props.onEndReachedThreshold
|
||||
) {
|
||||
// Scrolled out of the end zone, so it should be able to trigger again.
|
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this._sentEndForContentLength = null;
|
||||
}
|
||||
|
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this.props.onScroll && this.props.onScroll(e);
|
||||
};
|
||||
|
||||
_setScrollViewRef = component => {
|
||||
this._scrollViewRef = component;
|
||||
};
|
||||
}
|
||||
|
||||
export default applyNativeMethods(ListView);
|
||||
import ListView from '../../vendor/react-native/ListView';
|
||||
export default ListView;
|
||||
|
||||
@@ -1,41 +1,31 @@
|
||||
/* eslint-disable */
|
||||
/**
|
||||
* Copyright (c) 2015, Facebook, Inc. All rights reserved.
|
||||
* Copyright (c) 2015-present, Facebook, Inc.
|
||||
*
|
||||
* Facebook, Inc. ("Facebook") owns all right, title and interest, including
|
||||
* all intellectual property and other proprietary rights, in and to the React
|
||||
* Native CustomComponents software (the "Software"). Subject to your
|
||||
* compliance with these terms, you are hereby granted a non-exclusive,
|
||||
* worldwide, royalty-free copyright license to (1) use and copy the Software;
|
||||
* and (2) reproduce and distribute the Software as part of your own software
|
||||
* ("Your Software"). Facebook reserves all rights not expressly granted to
|
||||
* you in this license agreement.
|
||||
* This source code is licensed under the MIT license found in the
|
||||
* LICENSE file in the root directory of this source tree.
|
||||
*
|
||||
* THE SOFTWARE AND DOCUMENTATION, IF ANY, ARE PROVIDED "AS IS" AND ANY EXPRESS
|
||||
* OR IMPLIED WARRANTIES (INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE) ARE DISCLAIMED.
|
||||
* IN NO EVENT SHALL FACEBOOK OR ITS AFFILIATES, OFFICERS, DIRECTORS OR
|
||||
* EMPLOYEES BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
|
||||
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
||||
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
|
||||
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
|
||||
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
|
||||
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THE SOFTWARE, EVEN IF
|
||||
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
* @typechecks
|
||||
* @providesModule ListViewDataSource
|
||||
* @flow
|
||||
* @format
|
||||
*/
|
||||
'use strict';
|
||||
|
||||
import invariant from 'fbjs/lib/invariant';
|
||||
import isEmpty from 'fbjs/lib/isEmpty';
|
||||
import isEmpty from '../isEmpty';
|
||||
import warning from 'fbjs/lib/warning';
|
||||
|
||||
function defaultGetRowData(dataBlob: any, sectionID: number | string, rowID: number | string): any {
|
||||
function defaultGetRowData(
|
||||
dataBlob: any,
|
||||
sectionID: number | string,
|
||||
rowID: number | string,
|
||||
): any {
|
||||
return dataBlob[sectionID][rowID];
|
||||
}
|
||||
|
||||
function defaultGetSectionHeaderData(dataBlob: any, sectionID: number | string): any {
|
||||
function defaultGetSectionHeaderData(
|
||||
dataBlob: any,
|
||||
sectionID: number | string,
|
||||
): any {
|
||||
return dataBlob[sectionID];
|
||||
}
|
||||
|
||||
@@ -43,9 +33,9 @@ type differType = (data1: any, data2: any) => boolean;
|
||||
|
||||
type ParamType = {
|
||||
rowHasChanged: differType,
|
||||
getRowData: ?typeof defaultGetRowData,
|
||||
sectionHeaderHasChanged: ?differType,
|
||||
getSectionHeaderData: ?typeof defaultGetSectionHeaderData
|
||||
getRowData?: ?typeof defaultGetRowData,
|
||||
sectionHeaderHasChanged?: ?differType,
|
||||
getSectionHeaderData?: ?typeof defaultGetSectionHeaderData,
|
||||
};
|
||||
|
||||
/**
|
||||
@@ -70,7 +60,7 @@ type ParamType = {
|
||||
*
|
||||
* ```
|
||||
* getInitialState: function() {
|
||||
* var ds = new ListViewDataSource({rowHasChanged: this._rowHasChanged});
|
||||
* var ds = new ListView.DataSource({rowHasChanged: this._rowHasChanged});
|
||||
* return {ds};
|
||||
* },
|
||||
* _onDataArrived(newData) {
|
||||
@@ -111,12 +101,13 @@ class ListViewDataSource {
|
||||
constructor(params: ParamType) {
|
||||
invariant(
|
||||
params && typeof params.rowHasChanged === 'function',
|
||||
'Must provide a rowHasChanged function.'
|
||||
'Must provide a rowHasChanged function.',
|
||||
);
|
||||
this._rowHasChanged = params.rowHasChanged;
|
||||
this._getRowData = params.getRowData || defaultGetRowData;
|
||||
this._sectionHeaderHasChanged = params.sectionHeaderHasChanged;
|
||||
this._getSectionHeaderData = params.getSectionHeaderData || defaultGetSectionHeaderData;
|
||||
this._getSectionHeaderData =
|
||||
params.getSectionHeaderData || defaultGetSectionHeaderData;
|
||||
|
||||
this._dataBlob = null;
|
||||
this._dirtyRows = [];
|
||||
@@ -135,7 +126,7 @@ class ListViewDataSource {
|
||||
* construction an extractor to get the interesting information was defined
|
||||
* (or the default was used).
|
||||
*
|
||||
* The `rowIdentities` is is a 2D array of identifiers for rows.
|
||||
* The `rowIdentities` is a 2D array of identifiers for rows.
|
||||
* ie. [['a1', 'a2'], ['b1', 'b2', 'b3'], ...]. If not provided, it's
|
||||
* assumed that the keys of the section data are the row identities.
|
||||
*
|
||||
@@ -146,14 +137,14 @@ class ListViewDataSource {
|
||||
* this function as the `dataBlob`.
|
||||
*/
|
||||
cloneWithRows(
|
||||
dataBlob: Array<any> | { [key: string]: any },
|
||||
rowIdentities: ?Array<string>
|
||||
dataBlob: $ReadOnlyArray<any> | {+[key: string]: any},
|
||||
rowIdentities: ?$ReadOnlyArray<string>,
|
||||
): ListViewDataSource {
|
||||
var rowIds = rowIdentities ? [rowIdentities] : null;
|
||||
var rowIds = rowIdentities ? [[...rowIdentities]] : null;
|
||||
if (!this._sectionHeaderHasChanged) {
|
||||
this._sectionHeaderHasChanged = () => false;
|
||||
}
|
||||
return this.cloneWithRowsAndSections({ s1: dataBlob }, ['s1'], rowIds);
|
||||
return this.cloneWithRowsAndSections({s1: dataBlob}, ['s1'], rowIds);
|
||||
}
|
||||
|
||||
/**
|
||||
@@ -161,26 +152,41 @@ class ListViewDataSource {
|
||||
* you also specify what your `sectionIdentities` are. If you don't care
|
||||
* about sections you should safely be able to use `cloneWithRows`.
|
||||
*
|
||||
* `sectionIdentities` is an array of identifiers for sections.
|
||||
* ie. ['s1', 's2', ...]. If not provided, it's assumed that the
|
||||
* `sectionIdentities` is an array of identifiers for sections.
|
||||
* ie. ['s1', 's2', ...]. The identifiers should correspond to the keys or array indexes
|
||||
* of the data you wish to include. If not provided, it's assumed that the
|
||||
* keys of dataBlob are the section identities.
|
||||
*
|
||||
* Note: this returns a new object!
|
||||
*
|
||||
* ```
|
||||
* const dataSource = ds.cloneWithRowsAndSections({
|
||||
* addresses: ['row 1', 'row 2'],
|
||||
* phone_numbers: ['data 1', 'data 2'],
|
||||
* }, ['phone_numbers']);
|
||||
* ```
|
||||
*/
|
||||
cloneWithRowsAndSections(
|
||||
dataBlob: any,
|
||||
sectionIdentities: ?Array<string>,
|
||||
rowIdentities: ?Array<Array<string>>
|
||||
rowIdentities: ?Array<Array<string>>,
|
||||
): ListViewDataSource {
|
||||
invariant(
|
||||
typeof this._sectionHeaderHasChanged === 'function',
|
||||
'Must provide a sectionHeaderHasChanged function with section data.'
|
||||
'Must provide a sectionHeaderHasChanged function with section data.',
|
||||
);
|
||||
invariant(
|
||||
!sectionIdentities ||
|
||||
!rowIdentities ||
|
||||
sectionIdentities.length === rowIdentities.length,
|
||||
'row and section ids lengths must be the same',
|
||||
);
|
||||
|
||||
var newSource = new ListViewDataSource({
|
||||
getRowData: this._getRowData,
|
||||
getSectionHeaderData: this._getSectionHeaderData,
|
||||
rowHasChanged: this._rowHasChanged,
|
||||
sectionHeaderHasChanged: this._sectionHeaderHasChanged
|
||||
sectionHeaderHasChanged: this._sectionHeaderHasChanged,
|
||||
});
|
||||
newSource._dataBlob = dataBlob;
|
||||
if (sectionIdentities) {
|
||||
@@ -198,15 +204,29 @@ class ListViewDataSource {
|
||||
}
|
||||
newSource._cachedRowCount = countRows(newSource.rowIdentities);
|
||||
|
||||
newSource._calculateDirtyArrays(this._dataBlob, this.sectionIdentities, this.rowIdentities);
|
||||
newSource._calculateDirtyArrays(
|
||||
this._dataBlob,
|
||||
this.sectionIdentities,
|
||||
this.rowIdentities,
|
||||
);
|
||||
|
||||
return newSource;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the total number of rows in the data source.
|
||||
*
|
||||
* If you are specifying the rowIdentities or sectionIdentities, then `getRowCount` will return the number of rows in the filtered data source.
|
||||
*/
|
||||
getRowCount(): number {
|
||||
return this._cachedRowCount;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the total number of rows in the data source (see `getRowCount` for how this is calculated) plus the number of sections in the data.
|
||||
*
|
||||
* If you are specifying the rowIdentities or sectionIdentities, then `getRowAndSectionCount` will return the number of rows & sections in the filtered data source.
|
||||
*/
|
||||
getRowAndSectionCount(): number {
|
||||
return this._cachedRowCount + this.sectionIdentities.length;
|
||||
}
|
||||
@@ -218,7 +238,7 @@ class ListViewDataSource {
|
||||
var needsUpdate = this._dirtyRows[sectionIndex][rowIndex];
|
||||
warning(
|
||||
needsUpdate !== undefined,
|
||||
'missing dirtyBit for section, row: ' + sectionIndex + ', ' + rowIndex
|
||||
'missing dirtyBit for section, row: ' + sectionIndex + ', ' + rowIndex,
|
||||
);
|
||||
return needsUpdate;
|
||||
}
|
||||
@@ -231,7 +251,7 @@ class ListViewDataSource {
|
||||
var rowID = this.rowIdentities[sectionIndex][rowIndex];
|
||||
warning(
|
||||
sectionID !== undefined && rowID !== undefined,
|
||||
'rendering invalid section, row: ' + sectionIndex + ', ' + rowIndex
|
||||
'rendering invalid section, row: ' + sectionIndex + ', ' + rowIndex,
|
||||
);
|
||||
return this._getRowData(this._dataBlob, sectionID, rowID);
|
||||
}
|
||||
@@ -284,7 +304,10 @@ class ListViewDataSource {
|
||||
*/
|
||||
sectionHeaderShouldUpdate(sectionIndex: number): boolean {
|
||||
var needsUpdate = this._dirtySections[sectionIndex];
|
||||
warning(needsUpdate !== undefined, 'missing dirtyBit for section: ' + sectionIndex);
|
||||
warning(
|
||||
needsUpdate !== undefined,
|
||||
'missing dirtyBit for section: ' + sectionIndex,
|
||||
);
|
||||
return needsUpdate;
|
||||
}
|
||||
|
||||
@@ -296,7 +319,10 @@ class ListViewDataSource {
|
||||
return null;
|
||||
}
|
||||
var sectionID = this.sectionIdentities[sectionIndex];
|
||||
warning(sectionID !== undefined, 'renderSection called on invalid section: ' + sectionIndex);
|
||||
warning(
|
||||
sectionID !== undefined,
|
||||
'renderSection called on invalid section: ' + sectionIndex,
|
||||
);
|
||||
return this._getSectionHeaderData(this._dataBlob, sectionID);
|
||||
}
|
||||
|
||||
@@ -322,14 +348,17 @@ class ListViewDataSource {
|
||||
_calculateDirtyArrays(
|
||||
prevDataBlob: any,
|
||||
prevSectionIDs: Array<string>,
|
||||
prevRowIDs: Array<Array<string>>
|
||||
prevRowIDs: Array<Array<string>>,
|
||||
): void {
|
||||
// construct a hashmap of the existing (old) id arrays
|
||||
var prevSectionsHash = keyedDictionaryFromArray(prevSectionIDs);
|
||||
var prevRowsHash = {};
|
||||
for (var ii = 0; ii < prevRowIDs.length; ii++) {
|
||||
var sectionID = prevSectionIDs[ii];
|
||||
warning(!prevRowsHash[sectionID], 'SectionID appears more than once: ' + sectionID);
|
||||
warning(
|
||||
!prevRowsHash[sectionID],
|
||||
'SectionID appears more than once: ' + sectionID,
|
||||
);
|
||||
prevRowsHash[sectionID] = keyedDictionaryFromArray(prevRowIDs[ii]);
|
||||
}
|
||||
|
||||
@@ -346,13 +375,17 @@ class ListViewDataSource {
|
||||
if (!dirty && sectionHeaderHasChanged) {
|
||||
dirty = sectionHeaderHasChanged(
|
||||
this._getSectionHeaderData(prevDataBlob, sectionID),
|
||||
this._getSectionHeaderData(this._dataBlob, sectionID)
|
||||
this._getSectionHeaderData(this._dataBlob, sectionID),
|
||||
);
|
||||
}
|
||||
this._dirtySections.push(!!dirty);
|
||||
|
||||
this._dirtyRows[sIndex] = [];
|
||||
for (var rIndex = 0; rIndex < this.rowIdentities[sIndex].length; rIndex++) {
|
||||
for (
|
||||
var rIndex = 0;
|
||||
rIndex < this.rowIdentities[sIndex].length;
|
||||
rIndex++
|
||||
) {
|
||||
var rowID = this.rowIdentities[sIndex][rIndex];
|
||||
// dirty if the section is new, row is new or _rowHasChanged is true
|
||||
dirty =
|
||||
@@ -360,7 +393,7 @@ class ListViewDataSource {
|
||||
!prevRowsHash[sectionID][rowID] ||
|
||||
this._rowHasChanged(
|
||||
this._getRowData(prevDataBlob, sectionID, rowID),
|
||||
this._getRowData(this._dataBlob, sectionID, rowID)
|
||||
this._getRowData(this._dataBlob, sectionID, rowID),
|
||||
);
|
||||
this._dirtyRows[sIndex].push(!!dirty);
|
||||
}
|
||||
34
packages/react-native-web/src/vendor/react-native/ListView/cloneReferencedElement.js
vendored
Normal file
34
packages/react-native-web/src/vendor/react-native/ListView/cloneReferencedElement.js
vendored
Normal file
@@ -0,0 +1,34 @@
|
||||
'use strict';
|
||||
|
||||
import React from 'react';
|
||||
|
||||
const __DEV__ = process.env.NODE_ENV !== 'production';
|
||||
|
||||
function cloneReferencedElement(element, config, ...children) {
|
||||
let cloneRef = config.ref;
|
||||
let originalRef = element.ref;
|
||||
if (originalRef == null || cloneRef == null) {
|
||||
return React.cloneElement(element, config, ...children);
|
||||
}
|
||||
|
||||
if (typeof originalRef !== 'function') {
|
||||
if (__DEV__) {
|
||||
console.warn(
|
||||
'Cloning an element with a ref that will be overwritten because it ' +
|
||||
'is not a function. Use a composable callback-style ref instead. ' +
|
||||
'Ignoring ref: ' + originalRef,
|
||||
);
|
||||
}
|
||||
return React.cloneElement(element, config, ...children);
|
||||
}
|
||||
|
||||
return React.cloneElement(element, {
|
||||
...config,
|
||||
ref(component) {
|
||||
cloneRef(component);
|
||||
originalRef(component);
|
||||
},
|
||||
}, ...children);
|
||||
}
|
||||
|
||||
export default cloneReferencedElement;
|
||||
762
packages/react-native-web/src/vendor/react-native/ListView/index.js
vendored
Normal file
762
packages/react-native-web/src/vendor/react-native/ListView/index.js
vendored
Normal file
@@ -0,0 +1,762 @@
|
||||
/**
|
||||
* Copyright (c) 2015-present, Facebook, Inc.
|
||||
*
|
||||
* This source code is licensed under the MIT license found in the
|
||||
* LICENSE file in the root directory of this source tree.
|
||||
*
|
||||
* @providesModule ListView
|
||||
* @flow
|
||||
* @format
|
||||
*/
|
||||
'use strict';
|
||||
|
||||
import ListViewDataSource from './ListViewDataSource';
|
||||
import Platform from '../../../exports/Platform';
|
||||
import React from 'react';
|
||||
import PropTypes from 'prop-types';
|
||||
import findNodeHandle from '../../../exports/findNodeHandle';
|
||||
import NativeModules from '../../../exports/NativeModules';
|
||||
import ScrollView from '../../../exports/ScrollView';
|
||||
import ScrollResponder from '../../../modules/ScrollResponder';
|
||||
import StaticRenderer from '../StaticRenderer';
|
||||
import TimerMixin from 'react-timer-mixin';
|
||||
import View from '../../../exports/View';
|
||||
|
||||
import cloneReferencedElement from './cloneReferencedElement';
|
||||
import createReactClass from 'create-react-class';
|
||||
import isEmpty from '../isEmpty';
|
||||
|
||||
var merge = (...args) => Object.assign({}, ...args);
|
||||
var RCTScrollViewManager = NativeModules.ScrollViewManager;
|
||||
|
||||
var DEFAULT_PAGE_SIZE = 1;
|
||||
var DEFAULT_INITIAL_ROWS = 10;
|
||||
var DEFAULT_SCROLL_RENDER_AHEAD = 1000;
|
||||
var DEFAULT_END_REACHED_THRESHOLD = 1000;
|
||||
var DEFAULT_SCROLL_CALLBACK_THROTTLE = 50;
|
||||
|
||||
/**
|
||||
* DEPRECATED - use one of the new list components, such as [`FlatList`](docs/flatlist.html)
|
||||
* or [`SectionList`](docs/sectionlist.html) for bounded memory use, fewer bugs,
|
||||
* better performance, an easier to use API, and more features. Check out this
|
||||
* [blog post](https://facebook.github.io/react-native/blog/2017/03/13/better-list-views.html)
|
||||
* for more details.
|
||||
*
|
||||
* ListView - A core component designed for efficient display of vertically
|
||||
* scrolling lists of changing data. The minimal API is to create a
|
||||
* [`ListView.DataSource`](docs/listviewdatasource.html), populate it with a simple
|
||||
* array of data blobs, and instantiate a `ListView` component with that data
|
||||
* source and a `renderRow` callback which takes a blob from the data array and
|
||||
* returns a renderable component.
|
||||
*
|
||||
* Minimal example:
|
||||
*
|
||||
* ```
|
||||
* class MyComponent extends Component {
|
||||
* constructor() {
|
||||
* super();
|
||||
* const ds = new ListView.DataSource({rowHasChanged: (r1, r2) => r1 !== r2});
|
||||
* this.state = {
|
||||
* dataSource: ds.cloneWithRows(['row 1', 'row 2']),
|
||||
* };
|
||||
* }
|
||||
*
|
||||
* render() {
|
||||
* return (
|
||||
* <ListView
|
||||
* dataSource={this.state.dataSource}
|
||||
* renderRow={(rowData) => <Text>{rowData}</Text>}
|
||||
* />
|
||||
* );
|
||||
* }
|
||||
* }
|
||||
* ```
|
||||
*
|
||||
* ListView also supports more advanced features, including sections with sticky
|
||||
* section headers, header and footer support, callbacks on reaching the end of
|
||||
* the available data (`onEndReached`) and on the set of rows that are visible
|
||||
* in the device viewport change (`onChangeVisibleRows`), and several
|
||||
* performance optimizations.
|
||||
*
|
||||
* There are a few performance operations designed to make ListView scroll
|
||||
* smoothly while dynamically loading potentially very large (or conceptually
|
||||
* infinite) data sets:
|
||||
*
|
||||
* * Only re-render changed rows - the rowHasChanged function provided to the
|
||||
* data source tells the ListView if it needs to re-render a row because the
|
||||
* source data has changed - see ListViewDataSource for more details.
|
||||
*
|
||||
* * Rate-limited row rendering - By default, only one row is rendered per
|
||||
* event-loop (customizable with the `pageSize` prop). This breaks up the
|
||||
* work into smaller chunks to reduce the chance of dropping frames while
|
||||
* rendering rows.
|
||||
*/
|
||||
|
||||
var ListView = createReactClass({
|
||||
displayName: 'ListView',
|
||||
_childFrames: ([]: Array<Object>),
|
||||
_sentEndForContentLength: (null: ?number),
|
||||
_scrollComponent: (null: any),
|
||||
_prevRenderedRowsCount: 0,
|
||||
_visibleRows: ({}: Object),
|
||||
scrollProperties: ({}: Object),
|
||||
|
||||
mixins: [ScrollResponder.Mixin, TimerMixin],
|
||||
|
||||
statics: {
|
||||
DataSource: ListViewDataSource,
|
||||
},
|
||||
|
||||
/**
|
||||
* You must provide a renderRow function. If you omit any of the other render
|
||||
* functions, ListView will simply skip rendering them.
|
||||
*
|
||||
* - renderRow(rowData, sectionID, rowID, highlightRow);
|
||||
* - renderSectionHeader(sectionData, sectionID);
|
||||
*/
|
||||
propTypes: {
|
||||
...ScrollView.propTypes,
|
||||
/**
|
||||
* An instance of [ListView.DataSource](docs/listviewdatasource.html) to use
|
||||
*/
|
||||
dataSource: PropTypes.instanceOf(ListViewDataSource).isRequired,
|
||||
/**
|
||||
* (sectionID, rowID, adjacentRowHighlighted) => renderable
|
||||
*
|
||||
* If provided, a renderable component to be rendered as the separator
|
||||
* below each row but not the last row if there is a section header below.
|
||||
* Take a sectionID and rowID of the row above and whether its adjacent row
|
||||
* is highlighted.
|
||||
*/
|
||||
renderSeparator: PropTypes.func,
|
||||
/**
|
||||
* (rowData, sectionID, rowID, highlightRow) => renderable
|
||||
*
|
||||
* Takes a data entry from the data source and its ids and should return
|
||||
* a renderable component to be rendered as the row. By default the data
|
||||
* is exactly what was put into the data source, but it's also possible to
|
||||
* provide custom extractors. ListView can be notified when a row is
|
||||
* being highlighted by calling `highlightRow(sectionID, rowID)`. This
|
||||
* sets a boolean value of adjacentRowHighlighted in renderSeparator, allowing you
|
||||
* to control the separators above and below the highlighted row. The highlighted
|
||||
* state of a row can be reset by calling highlightRow(null).
|
||||
*/
|
||||
renderRow: PropTypes.func.isRequired,
|
||||
/**
|
||||
* How many rows to render on initial component mount. Use this to make
|
||||
* it so that the first screen worth of data appears at one time instead of
|
||||
* over the course of multiple frames.
|
||||
*/
|
||||
initialListSize: PropTypes.number.isRequired,
|
||||
/**
|
||||
* Called when all rows have been rendered and the list has been scrolled
|
||||
* to within onEndReachedThreshold of the bottom. The native scroll
|
||||
* event is provided.
|
||||
*/
|
||||
onEndReached: PropTypes.func,
|
||||
/**
|
||||
* Threshold in pixels (virtual, not physical) for calling onEndReached.
|
||||
*/
|
||||
onEndReachedThreshold: PropTypes.number.isRequired,
|
||||
/**
|
||||
* Number of rows to render per event loop. Note: if your 'rows' are actually
|
||||
* cells, i.e. they don't span the full width of your view (as in the
|
||||
* ListViewGridLayoutExample), you should set the pageSize to be a multiple
|
||||
* of the number of cells per row, otherwise you're likely to see gaps at
|
||||
* the edge of the ListView as new pages are loaded.
|
||||
*/
|
||||
pageSize: PropTypes.number.isRequired,
|
||||
/**
|
||||
* () => renderable
|
||||
*
|
||||
* The header and footer are always rendered (if these props are provided)
|
||||
* on every render pass. If they are expensive to re-render, wrap them
|
||||
* in StaticContainer or other mechanism as appropriate. Footer is always
|
||||
* at the bottom of the list, and header at the top, on every render pass.
|
||||
* In a horizontal ListView, the header is rendered on the left and the
|
||||
* footer on the right.
|
||||
*/
|
||||
renderFooter: PropTypes.func,
|
||||
renderHeader: PropTypes.func,
|
||||
/**
|
||||
* (sectionData, sectionID) => renderable
|
||||
*
|
||||
* If provided, a header is rendered for this section.
|
||||
*/
|
||||
renderSectionHeader: PropTypes.func,
|
||||
/**
|
||||
* (props) => renderable
|
||||
*
|
||||
* A function that returns the scrollable component in which the list rows
|
||||
* are rendered. Defaults to returning a ScrollView with the given props.
|
||||
*/
|
||||
renderScrollComponent: PropTypes.func.isRequired,
|
||||
/**
|
||||
* How early to start rendering rows before they come on screen, in
|
||||
* pixels.
|
||||
*/
|
||||
scrollRenderAheadDistance: PropTypes.number.isRequired,
|
||||
/**
|
||||
* (visibleRows, changedRows) => void
|
||||
*
|
||||
* Called when the set of visible rows changes. `visibleRows` maps
|
||||
* { sectionID: { rowID: true }} for all the visible rows, and
|
||||
* `changedRows` maps { sectionID: { rowID: true | false }} for the rows
|
||||
* that have changed their visibility, with true indicating visible, and
|
||||
* false indicating the view has moved out of view.
|
||||
*/
|
||||
onChangeVisibleRows: PropTypes.func,
|
||||
/**
|
||||
* A performance optimization for improving scroll perf of
|
||||
* large lists, used in conjunction with overflow: 'hidden' on the row
|
||||
* containers. This is enabled by default.
|
||||
*/
|
||||
removeClippedSubviews: PropTypes.bool,
|
||||
/**
|
||||
* Makes the sections headers sticky. The sticky behavior means that it
|
||||
* will scroll with the content at the top of the section until it reaches
|
||||
* the top of the screen, at which point it will stick to the top until it
|
||||
* is pushed off the screen by the next section header. This property is
|
||||
* not supported in conjunction with `horizontal={true}`. Only enabled by
|
||||
* default on iOS because of typical platform standards.
|
||||
*/
|
||||
stickySectionHeadersEnabled: PropTypes.bool,
|
||||
/**
|
||||
* An array of child indices determining which children get docked to the
|
||||
* top of the screen when scrolling. For example, passing
|
||||
* `stickyHeaderIndices={[0]}` will cause the first child to be fixed to the
|
||||
* top of the scroll view. This property is not supported in conjunction
|
||||
* with `horizontal={true}`.
|
||||
*/
|
||||
stickyHeaderIndices: PropTypes.arrayOf(PropTypes.number).isRequired,
|
||||
/**
|
||||
* Flag indicating whether empty section headers should be rendered. In the future release
|
||||
* empty section headers will be rendered by default, and the flag will be deprecated.
|
||||
* If empty sections are not desired to be rendered their indices should be excluded from sectionID object.
|
||||
*/
|
||||
enableEmptySections: PropTypes.bool,
|
||||
},
|
||||
|
||||
/**
|
||||
* Exports some data, e.g. for perf investigations or analytics.
|
||||
*/
|
||||
getMetrics: function() {
|
||||
return {
|
||||
contentLength: this.scrollProperties.contentLength,
|
||||
totalRows: this.props.enableEmptySections
|
||||
? this.props.dataSource.getRowAndSectionCount()
|
||||
: this.props.dataSource.getRowCount(),
|
||||
renderedRows: this.state.curRenderedRowsCount,
|
||||
visibleRows: Object.keys(this._visibleRows).length,
|
||||
};
|
||||
},
|
||||
|
||||
/**
|
||||
* Provides a handle to the underlying scroll responder.
|
||||
* Note that `this._scrollComponent` might not be a `ScrollView`, so we
|
||||
* need to check that it responds to `getScrollResponder` before calling it.
|
||||
*/
|
||||
getScrollResponder: function() {
|
||||
if (this._scrollComponent && this._scrollComponent.getScrollResponder) {
|
||||
return this._scrollComponent.getScrollResponder();
|
||||
}
|
||||
},
|
||||
|
||||
getScrollableNode: function() {
|
||||
if (this._scrollComponent && this._scrollComponent.getScrollableNode) {
|
||||
return this._scrollComponent.getScrollableNode();
|
||||
} else {
|
||||
return findNodeHandle(this._scrollComponent);
|
||||
}
|
||||
},
|
||||
|
||||
/**
|
||||
* Scrolls to a given x, y offset, either immediately or with a smooth animation.
|
||||
*
|
||||
* See `ScrollView#scrollTo`.
|
||||
*/
|
||||
scrollTo: function(...args: Array<mixed>) {
|
||||
if (this._scrollComponent && this._scrollComponent.scrollTo) {
|
||||
this._scrollComponent.scrollTo(...args);
|
||||
}
|
||||
},
|
||||
|
||||
/**
|
||||
* If this is a vertical ListView scrolls to the bottom.
|
||||
* If this is a horizontal ListView scrolls to the right.
|
||||
*
|
||||
* Use `scrollToEnd({animated: true})` for smooth animated scrolling,
|
||||
* `scrollToEnd({animated: false})` for immediate scrolling.
|
||||
* If no options are passed, `animated` defaults to true.
|
||||
*
|
||||
* See `ScrollView#scrollToEnd`.
|
||||
*/
|
||||
scrollToEnd: function(options?: ?{animated?: ?boolean}) {
|
||||
if (this._scrollComponent) {
|
||||
if (this._scrollComponent.scrollToEnd) {
|
||||
this._scrollComponent.scrollToEnd(options);
|
||||
} else {
|
||||
console.warn(
|
||||
'The scroll component used by the ListView does not support ' +
|
||||
'scrollToEnd. Check the renderScrollComponent prop of your ListView.',
|
||||
);
|
||||
}
|
||||
}
|
||||
},
|
||||
|
||||
/**
|
||||
* Displays the scroll indicators momentarily.
|
||||
*
|
||||
* @platform ios
|
||||
*/
|
||||
flashScrollIndicators: function() {
|
||||
if (this._scrollComponent && this._scrollComponent.flashScrollIndicators) {
|
||||
this._scrollComponent.flashScrollIndicators();
|
||||
}
|
||||
},
|
||||
|
||||
setNativeProps: function(props: Object) {
|
||||
if (this._scrollComponent) {
|
||||
this._scrollComponent.setNativeProps(props);
|
||||
}
|
||||
},
|
||||
|
||||
/**
|
||||
* React life cycle hooks.
|
||||
*/
|
||||
|
||||
getDefaultProps: function() {
|
||||
return {
|
||||
initialListSize: DEFAULT_INITIAL_ROWS,
|
||||
pageSize: DEFAULT_PAGE_SIZE,
|
||||
renderScrollComponent: props => <ScrollView {...props} />,
|
||||
scrollRenderAheadDistance: DEFAULT_SCROLL_RENDER_AHEAD,
|
||||
onEndReachedThreshold: DEFAULT_END_REACHED_THRESHOLD,
|
||||
stickySectionHeadersEnabled: Platform.OS === 'ios' || Platform.OS === 'web',
|
||||
stickyHeaderIndices: [],
|
||||
};
|
||||
},
|
||||
|
||||
getInitialState: function() {
|
||||
return {
|
||||
curRenderedRowsCount: this.props.initialListSize,
|
||||
highlightedRow: ({}: Object),
|
||||
};
|
||||
},
|
||||
|
||||
getInnerViewNode: function() {
|
||||
return this._scrollComponent.getInnerViewNode();
|
||||
},
|
||||
|
||||
UNSAFE_componentWillMount: function() {
|
||||
// this data should never trigger a render pass, so don't put in state
|
||||
this.scrollProperties = {
|
||||
visibleLength: null,
|
||||
contentLength: null,
|
||||
offset: 0,
|
||||
};
|
||||
this._childFrames = [];
|
||||
this._visibleRows = {};
|
||||
this._prevRenderedRowsCount = 0;
|
||||
this._sentEndForContentLength = null;
|
||||
},
|
||||
|
||||
componentDidMount: function() {
|
||||
// do this in animation frame until componentDidMount actually runs after
|
||||
// the component is laid out
|
||||
this.requestAnimationFrame(() => {
|
||||
this._measureAndUpdateScrollProps();
|
||||
});
|
||||
},
|
||||
|
||||
UNSAFE_componentWillReceiveProps: function(nextProps: Object) {
|
||||
if (
|
||||
this.props.dataSource !== nextProps.dataSource ||
|
||||
this.props.initialListSize !== nextProps.initialListSize
|
||||
) {
|
||||
this.setState(
|
||||
(state, props) => {
|
||||
this._prevRenderedRowsCount = 0;
|
||||
return {
|
||||
curRenderedRowsCount: Math.min(
|
||||
Math.max(state.curRenderedRowsCount, props.initialListSize),
|
||||
props.enableEmptySections
|
||||
? props.dataSource.getRowAndSectionCount()
|
||||
: props.dataSource.getRowCount(),
|
||||
),
|
||||
};
|
||||
},
|
||||
() => this._renderMoreRowsIfNeeded(),
|
||||
);
|
||||
}
|
||||
},
|
||||
|
||||
componentDidUpdate: function() {
|
||||
this.requestAnimationFrame(() => {
|
||||
this._measureAndUpdateScrollProps();
|
||||
});
|
||||
},
|
||||
|
||||
_onRowHighlighted: function(sectionID: string, rowID: string) {
|
||||
this.setState({highlightedRow: {sectionID, rowID}});
|
||||
},
|
||||
|
||||
render: function() {
|
||||
var bodyComponents = [];
|
||||
|
||||
var dataSource = this.props.dataSource;
|
||||
var allRowIDs = dataSource.rowIdentities;
|
||||
var rowCount = 0;
|
||||
var stickySectionHeaderIndices = [];
|
||||
|
||||
const {renderSectionHeader} = this.props;
|
||||
|
||||
var header = this.props.renderHeader && this.props.renderHeader();
|
||||
var footer = this.props.renderFooter && this.props.renderFooter();
|
||||
var totalIndex = header ? 1 : 0;
|
||||
|
||||
for (var sectionIdx = 0; sectionIdx < allRowIDs.length; sectionIdx++) {
|
||||
var sectionID = dataSource.sectionIdentities[sectionIdx];
|
||||
var rowIDs = allRowIDs[sectionIdx];
|
||||
if (rowIDs.length === 0) {
|
||||
if (this.props.enableEmptySections === undefined) {
|
||||
/* $FlowFixMe(>=0.54.0 site=react_native_oss) This comment suppresses
|
||||
* an error found when Flow v0.54 was deployed. To see the error
|
||||
* delete this comment and run Flow. */
|
||||
var warning = require('fbjs/lib/warning');
|
||||
warning(
|
||||
false,
|
||||
'In next release empty section headers will be rendered.' +
|
||||
" In this release you can use 'enableEmptySections' flag to render empty section headers.",
|
||||
);
|
||||
continue;
|
||||
} else {
|
||||
var invariant = require('fbjs/lib/invariant');
|
||||
invariant(
|
||||
this.props.enableEmptySections,
|
||||
"In next release 'enableEmptySections' flag will be deprecated, empty section headers will always be rendered." +
|
||||
' If empty section headers are not desirable their indices should be excluded from sectionIDs object.' +
|
||||
" In this release 'enableEmptySections' may only have value 'true' to allow empty section headers rendering.",
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
if (renderSectionHeader) {
|
||||
const element = renderSectionHeader(
|
||||
dataSource.getSectionHeaderData(sectionIdx),
|
||||
sectionID,
|
||||
);
|
||||
if (element) {
|
||||
bodyComponents.push(
|
||||
React.cloneElement(element, {key: 's_' + sectionID}),
|
||||
);
|
||||
if (this.props.stickySectionHeadersEnabled) {
|
||||
stickySectionHeaderIndices.push(totalIndex);
|
||||
}
|
||||
totalIndex++;
|
||||
}
|
||||
}
|
||||
|
||||
for (var rowIdx = 0; rowIdx < rowIDs.length; rowIdx++) {
|
||||
var rowID = rowIDs[rowIdx];
|
||||
var comboID = sectionID + '_' + rowID;
|
||||
var shouldUpdateRow =
|
||||
rowCount >= this._prevRenderedRowsCount &&
|
||||
dataSource.rowShouldUpdate(sectionIdx, rowIdx);
|
||||
var row = (
|
||||
<StaticRenderer
|
||||
key={'r_' + comboID}
|
||||
shouldUpdate={!!shouldUpdateRow}
|
||||
render={this.props.renderRow.bind(
|
||||
null,
|
||||
dataSource.getRowData(sectionIdx, rowIdx),
|
||||
sectionID,
|
||||
rowID,
|
||||
this._onRowHighlighted,
|
||||
)}
|
||||
/>
|
||||
);
|
||||
bodyComponents.push(row);
|
||||
totalIndex++;
|
||||
|
||||
if (
|
||||
this.props.renderSeparator &&
|
||||
(rowIdx !== rowIDs.length - 1 || sectionIdx === allRowIDs.length - 1)
|
||||
) {
|
||||
var adjacentRowHighlighted =
|
||||
this.state.highlightedRow.sectionID === sectionID &&
|
||||
(this.state.highlightedRow.rowID === rowID ||
|
||||
this.state.highlightedRow.rowID === rowIDs[rowIdx + 1]);
|
||||
var separator = this.props.renderSeparator(
|
||||
sectionID,
|
||||
rowID,
|
||||
adjacentRowHighlighted,
|
||||
);
|
||||
if (separator) {
|
||||
bodyComponents.push(<View key={'s_' + comboID}>{separator}</View>);
|
||||
totalIndex++;
|
||||
}
|
||||
}
|
||||
if (++rowCount === this.state.curRenderedRowsCount) {
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (rowCount >= this.state.curRenderedRowsCount) {
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
var {renderScrollComponent, ...props} = this.props;
|
||||
if (!props.scrollEventThrottle) {
|
||||
props.scrollEventThrottle = DEFAULT_SCROLL_CALLBACK_THROTTLE;
|
||||
}
|
||||
if (props.removeClippedSubviews === undefined) {
|
||||
props.removeClippedSubviews = true;
|
||||
}
|
||||
Object.assign(props, {
|
||||
onScroll: this._onScroll,
|
||||
stickyHeaderIndices: this.props.stickyHeaderIndices.concat(
|
||||
stickySectionHeaderIndices,
|
||||
),
|
||||
|
||||
// Do not pass these events downstream to ScrollView since they will be
|
||||
// registered in ListView's own ScrollResponder.Mixin
|
||||
onKeyboardWillShow: undefined,
|
||||
onKeyboardWillHide: undefined,
|
||||
onKeyboardDidShow: undefined,
|
||||
onKeyboardDidHide: undefined,
|
||||
});
|
||||
|
||||
return cloneReferencedElement(
|
||||
renderScrollComponent(props),
|
||||
{
|
||||
ref: this._setScrollComponentRef,
|
||||
onContentSizeChange: this._onContentSizeChange,
|
||||
onLayout: this._onLayout,
|
||||
DEPRECATED_sendUpdatedChildFrames:
|
||||
typeof props.onChangeVisibleRows !== undefined,
|
||||
},
|
||||
header,
|
||||
bodyComponents,
|
||||
footer,
|
||||
);
|
||||
},
|
||||
|
||||
/**
|
||||
* Private methods
|
||||
*/
|
||||
|
||||
_measureAndUpdateScrollProps: function() {
|
||||
var scrollComponent = this.getScrollResponder();
|
||||
if (!scrollComponent || !scrollComponent.getInnerViewNode) {
|
||||
return;
|
||||
}
|
||||
|
||||
// RCTScrollViewManager.calculateChildFrames is not available on
|
||||
// every platform
|
||||
RCTScrollViewManager &&
|
||||
RCTScrollViewManager.calculateChildFrames &&
|
||||
RCTScrollViewManager.calculateChildFrames(
|
||||
findNodeHandle(scrollComponent),
|
||||
this._updateVisibleRows,
|
||||
);
|
||||
},
|
||||
|
||||
_setScrollComponentRef: function(scrollComponent: Object) {
|
||||
this._scrollComponent = scrollComponent;
|
||||
},
|
||||
|
||||
_onContentSizeChange: function(width: number, height: number) {
|
||||
var contentLength = !this.props.horizontal ? height : width;
|
||||
if (contentLength !== this.scrollProperties.contentLength) {
|
||||
this.scrollProperties.contentLength = contentLength;
|
||||
this._updateVisibleRows();
|
||||
this._renderMoreRowsIfNeeded();
|
||||
}
|
||||
this.props.onContentSizeChange &&
|
||||
this.props.onContentSizeChange(width, height);
|
||||
},
|
||||
|
||||
_onLayout: function(event: Object) {
|
||||
var {width, height} = event.nativeEvent.layout;
|
||||
var visibleLength = !this.props.horizontal ? height : width;
|
||||
if (visibleLength !== this.scrollProperties.visibleLength) {
|
||||
this.scrollProperties.visibleLength = visibleLength;
|
||||
this._updateVisibleRows();
|
||||
this._renderMoreRowsIfNeeded();
|
||||
}
|
||||
this.props.onLayout && this.props.onLayout(event);
|
||||
},
|
||||
|
||||
_maybeCallOnEndReached: function(event?: Object) {
|
||||
if (
|
||||
this.props.onEndReached &&
|
||||
this.scrollProperties.contentLength !== this._sentEndForContentLength &&
|
||||
this._getDistanceFromEnd(this.scrollProperties) <
|
||||
this.props.onEndReachedThreshold &&
|
||||
this.state.curRenderedRowsCount ===
|
||||
(this.props.enableEmptySections
|
||||
? this.props.dataSource.getRowAndSectionCount()
|
||||
: this.props.dataSource.getRowCount())
|
||||
) {
|
||||
this._sentEndForContentLength = this.scrollProperties.contentLength;
|
||||
this.props.onEndReached(event);
|
||||
return true;
|
||||
}
|
||||
return false;
|
||||
},
|
||||
|
||||
_renderMoreRowsIfNeeded: function() {
|
||||
if (
|
||||
this.scrollProperties.contentLength === null ||
|
||||
this.scrollProperties.visibleLength === null ||
|
||||
this.state.curRenderedRowsCount ===
|
||||
(this.props.enableEmptySections
|
||||
? this.props.dataSource.getRowAndSectionCount()
|
||||
: this.props.dataSource.getRowCount())
|
||||
) {
|
||||
this._maybeCallOnEndReached();
|
||||
return;
|
||||
}
|
||||
|
||||
var distanceFromEnd = this._getDistanceFromEnd(this.scrollProperties);
|
||||
if (distanceFromEnd < this.props.scrollRenderAheadDistance) {
|
||||
this._pageInNewRows();
|
||||
}
|
||||
},
|
||||
|
||||
_pageInNewRows: function() {
|
||||
this.setState(
|
||||
(state, props) => {
|
||||
var rowsToRender = Math.min(
|
||||
state.curRenderedRowsCount + props.pageSize,
|
||||
props.enableEmptySections
|
||||
? props.dataSource.getRowAndSectionCount()
|
||||
: props.dataSource.getRowCount(),
|
||||
);
|
||||
this._prevRenderedRowsCount = state.curRenderedRowsCount;
|
||||
return {
|
||||
curRenderedRowsCount: rowsToRender,
|
||||
};
|
||||
},
|
||||
() => {
|
||||
this._measureAndUpdateScrollProps();
|
||||
this._prevRenderedRowsCount = this.state.curRenderedRowsCount;
|
||||
},
|
||||
);
|
||||
},
|
||||
|
||||
_getDistanceFromEnd: function(scrollProperties: Object) {
|
||||
return (
|
||||
scrollProperties.contentLength -
|
||||
scrollProperties.visibleLength -
|
||||
scrollProperties.offset
|
||||
);
|
||||
},
|
||||
|
||||
_updateVisibleRows: function(updatedFrames?: Array<Object>) {
|
||||
if (!this.props.onChangeVisibleRows) {
|
||||
return; // No need to compute visible rows if there is no callback
|
||||
}
|
||||
if (updatedFrames) {
|
||||
updatedFrames.forEach(newFrame => {
|
||||
this._childFrames[newFrame.index] = merge(newFrame);
|
||||
});
|
||||
}
|
||||
var isVertical = !this.props.horizontal;
|
||||
var dataSource = this.props.dataSource;
|
||||
var visibleMin = this.scrollProperties.offset;
|
||||
var visibleMax = visibleMin + this.scrollProperties.visibleLength;
|
||||
var allRowIDs = dataSource.rowIdentities;
|
||||
|
||||
var header = this.props.renderHeader && this.props.renderHeader();
|
||||
var totalIndex = header ? 1 : 0;
|
||||
var visibilityChanged = false;
|
||||
var changedRows = {};
|
||||
for (var sectionIdx = 0; sectionIdx < allRowIDs.length; sectionIdx++) {
|
||||
var rowIDs = allRowIDs[sectionIdx];
|
||||
if (rowIDs.length === 0) {
|
||||
continue;
|
||||
}
|
||||
var sectionID = dataSource.sectionIdentities[sectionIdx];
|
||||
if (this.props.renderSectionHeader) {
|
||||
totalIndex++;
|
||||
}
|
||||
var visibleSection = this._visibleRows[sectionID];
|
||||
if (!visibleSection) {
|
||||
visibleSection = {};
|
||||
}
|
||||
for (var rowIdx = 0; rowIdx < rowIDs.length; rowIdx++) {
|
||||
var rowID = rowIDs[rowIdx];
|
||||
var frame = this._childFrames[totalIndex];
|
||||
totalIndex++;
|
||||
if (
|
||||
this.props.renderSeparator &&
|
||||
(rowIdx !== rowIDs.length - 1 || sectionIdx === allRowIDs.length - 1)
|
||||
) {
|
||||
totalIndex++;
|
||||
}
|
||||
if (!frame) {
|
||||
break;
|
||||
}
|
||||
var rowVisible = visibleSection[rowID];
|
||||
var min = isVertical ? frame.y : frame.x;
|
||||
var max = min + (isVertical ? frame.height : frame.width);
|
||||
if ((!min && !max) || min === max) {
|
||||
break;
|
||||
}
|
||||
if (min > visibleMax || max < visibleMin) {
|
||||
if (rowVisible) {
|
||||
visibilityChanged = true;
|
||||
delete visibleSection[rowID];
|
||||
if (!changedRows[sectionID]) {
|
||||
changedRows[sectionID] = {};
|
||||
}
|
||||
changedRows[sectionID][rowID] = false;
|
||||
}
|
||||
} else if (!rowVisible) {
|
||||
visibilityChanged = true;
|
||||
visibleSection[rowID] = true;
|
||||
if (!changedRows[sectionID]) {
|
||||
changedRows[sectionID] = {};
|
||||
}
|
||||
changedRows[sectionID][rowID] = true;
|
||||
}
|
||||
}
|
||||
if (!isEmpty(visibleSection)) {
|
||||
this._visibleRows[sectionID] = visibleSection;
|
||||
} else if (this._visibleRows[sectionID]) {
|
||||
delete this._visibleRows[sectionID];
|
||||
}
|
||||
}
|
||||
visibilityChanged &&
|
||||
this.props.onChangeVisibleRows(this._visibleRows, changedRows);
|
||||
},
|
||||
|
||||
_onScroll: function(e: Object) {
|
||||
var isVertical = !this.props.horizontal;
|
||||
this.scrollProperties.visibleLength =
|
||||
e.nativeEvent.layoutMeasurement[isVertical ? 'height' : 'width'];
|
||||
this.scrollProperties.contentLength =
|
||||
e.nativeEvent.contentSize[isVertical ? 'height' : 'width'];
|
||||
this.scrollProperties.offset =
|
||||
e.nativeEvent.contentOffset[isVertical ? 'y' : 'x'];
|
||||
this._updateVisibleRows(e.nativeEvent.updatedChildFrames);
|
||||
if (!this._maybeCallOnEndReached(e)) {
|
||||
this._renderMoreRowsIfNeeded();
|
||||
}
|
||||
|
||||
if (
|
||||
this.props.onEndReached &&
|
||||
this._getDistanceFromEnd(this.scrollProperties) >
|
||||
this.props.onEndReachedThreshold
|
||||
) {
|
||||
// Scrolled out of the end zone, so it should be able to trigger again.
|
||||
this._sentEndForContentLength = null;
|
||||
}
|
||||
|
||||
this.props.onScroll && this.props.onScroll(e);
|
||||
},
|
||||
});
|
||||
|
||||
export default ListView;
|
||||
27
packages/react-native-web/src/vendor/react-native/isEmpty/index.js
vendored
Normal file
27
packages/react-native-web/src/vendor/react-native/isEmpty/index.js
vendored
Normal file
@@ -0,0 +1,27 @@
|
||||
/**
|
||||
* Copyright (c) 2015-present, Facebook, Inc.
|
||||
*
|
||||
* This source code is licensed under the MIT license found in the
|
||||
* LICENSE file in the root directory of this source tree.
|
||||
*
|
||||
* @providesModule isEmpty
|
||||
*/
|
||||
'use strict';
|
||||
|
||||
/**
|
||||
* Mimics empty from PHP.
|
||||
*/
|
||||
function isEmpty(obj) {
|
||||
if (Array.isArray(obj)) {
|
||||
return obj.length === 0;
|
||||
} else if (typeof obj === 'object') {
|
||||
for (var i in obj) {
|
||||
return false;
|
||||
}
|
||||
return true;
|
||||
} else {
|
||||
return !obj;
|
||||
}
|
||||
}
|
||||
|
||||
export default isEmpty;
|
||||
Reference in New Issue
Block a user