425 lines
13 KiB
JavaScript
425 lines
13 KiB
JavaScript
import _extends from 'babel-runtime/helpers/extends';
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import _objectWithoutProperties from 'babel-runtime/helpers/objectWithoutProperties';
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import _Number$isNaN from 'babel-runtime/core-js/number/is-nan';
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import React from 'react';
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import PropTypes from 'prop-types';
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import warning from 'warning';
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import classNames from 'classnames';
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import EventListener from 'react-event-listener';
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import debounce from 'lodash/debounce';
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import ScrollbarSize from 'react-scrollbar-size';
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import { getNormalizedScrollLeft, detectScrollType } from 'normalize-scroll-left';
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import scroll from 'scroll';
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import withStyles from '../styles/withStyles';
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import TabIndicator from './TabIndicator';
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import TabScrollButton from './TabScrollButton';
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export const styles = theme => ({
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root: {
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overflow: 'hidden',
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minHeight: 48,
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WebkitOverflowScrolling: 'touch' // Add iOS momentum scrolling.
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},
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flexContainer: {
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display: 'flex'
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},
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scrollingContainer: {
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position: 'relative',
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display: 'inline-block',
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flex: '1 1 auto',
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whiteSpace: 'nowrap'
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},
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fixed: {
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overflowX: 'hidden',
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width: '100%'
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},
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scrollable: {
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overflowX: 'scroll'
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},
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centered: {
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justifyContent: 'center'
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},
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buttonAuto: {
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[theme.breakpoints.down('xs')]: {
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display: 'none'
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}
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}
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});
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class Tabs extends React.Component {
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constructor(...args) {
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var _temp;
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return _temp = super(...args), this.state = {
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indicatorStyle: {},
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scrollerStyle: {
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marginBottom: 0
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},
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showLeftScroll: false,
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showRightScroll: false,
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mounted: false
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}, this.getConditionalElements = () => {
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const {
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classes,
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buttonClassName,
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scrollable,
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scrollButtons,
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TabScrollButton: TabScrollButtonProp,
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theme
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} = this.props;
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const conditionalElements = {};
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conditionalElements.scrollbarSizeListener = scrollable ? React.createElement(ScrollbarSize, {
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onLoad: this.handleScrollbarSizeChange,
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onChange: this.handleScrollbarSizeChange
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}) : null;
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const showScrollButtons = scrollable && (scrollButtons === 'auto' || scrollButtons === 'on');
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conditionalElements.scrollButtonLeft = showScrollButtons ? React.createElement(TabScrollButtonProp, {
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direction: theme && theme.direction === 'rtl' ? 'right' : 'left',
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onClick: this.handleLeftScrollClick,
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visible: this.state.showLeftScroll,
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className: classNames({
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[classes.buttonAuto]: scrollButtons === 'auto'
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}, buttonClassName)
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}) : null;
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conditionalElements.scrollButtonRight = showScrollButtons ? React.createElement(TabScrollButtonProp, {
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direction: theme && theme.direction === 'rtl' ? 'left' : 'right',
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onClick: this.handleRightScrollClick,
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visible: this.state.showRightScroll,
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className: classNames({
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[classes.buttonAuto]: scrollButtons === 'auto'
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}, buttonClassName)
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}) : null;
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return conditionalElements;
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}, this.getTabsMeta = (value, direction) => {
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let tabsMeta;
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if (this.tabs) {
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const rect = this.tabs.getBoundingClientRect();
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// create a new object with ClientRect class props + scrollLeft
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tabsMeta = {
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clientWidth: this.tabs ? this.tabs.clientWidth : 0,
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scrollLeft: this.tabs ? this.tabs.scrollLeft : 0,
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scrollLeftNormalized: this.tabs ? getNormalizedScrollLeft(this.tabs, direction) : 0,
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scrollWidth: this.tabs ? this.tabs.scrollWidth : 0,
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left: rect.left,
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right: rect.right
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};
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}
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let tabMeta;
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if (this.tabs && value !== false) {
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const children = this.tabs.children[0].children;
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if (children.length > 0) {
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const tab = children[this.valueToIndex[value]];
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process.env.NODE_ENV !== "production" ? warning(tab, `Material-UI: the value provided \`${value}\` is invalid`) : void 0;
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tabMeta = tab ? tab.getBoundingClientRect() : null;
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}
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}
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return { tabsMeta, tabMeta };
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}, this.tabs = undefined, this.valueToIndex = {}, this.handleResize = debounce(() => {
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this.updateIndicatorState(this.props);
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this.updateScrollButtonState();
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}, 166), this.handleLeftScrollClick = () => {
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if (this.tabs) {
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this.moveTabsScroll(-this.tabs.clientWidth);
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}
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}, this.handleRightScrollClick = () => {
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if (this.tabs) {
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this.moveTabsScroll(this.tabs.clientWidth);
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}
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}, this.handleScrollbarSizeChange = ({ scrollbarHeight }) => {
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this.setState({
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scrollerStyle: {
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marginBottom: -scrollbarHeight
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}
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});
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}, this.handleTabsScroll = debounce(() => {
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this.updateScrollButtonState();
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}, 166), this.moveTabsScroll = delta => {
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const { theme } = this.props;
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if (this.tabs) {
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const multiplier = theme.direction === 'rtl' ? -1 : 1;
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const nextScrollLeft = this.tabs.scrollLeft + delta * multiplier;
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// Fix for Edge
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const invert = theme.direction === 'rtl' && detectScrollType() === 'reverse' ? -1 : 1;
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scroll.left(this.tabs, invert * nextScrollLeft);
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}
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}, this.scrollSelectedIntoView = () => {
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const { theme, value } = this.props;
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const { tabsMeta, tabMeta } = this.getTabsMeta(value, theme.direction);
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if (!tabMeta || !tabsMeta) {
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return;
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}
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if (tabMeta.left < tabsMeta.left) {
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// left side of button is out of view
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const nextScrollLeft = tabsMeta.scrollLeft + (tabMeta.left - tabsMeta.left);
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scroll.left(this.tabs, nextScrollLeft);
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} else if (tabMeta.right > tabsMeta.right) {
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// right side of button is out of view
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const nextScrollLeft = tabsMeta.scrollLeft + (tabMeta.right - tabsMeta.right);
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scroll.left(this.tabs, nextScrollLeft);
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}
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}, this.updateScrollButtonState = () => {
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const { scrollable, scrollButtons, theme } = this.props;
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if (this.tabs && scrollable && scrollButtons !== 'off') {
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const { scrollWidth, clientWidth } = this.tabs;
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const scrollLeft = getNormalizedScrollLeft(this.tabs, theme.direction);
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const showLeftScroll = theme.direction === 'rtl' ? scrollWidth > clientWidth + scrollLeft : scrollLeft > 0;
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const showRightScroll = theme.direction === 'rtl' ? scrollLeft > 0 : scrollWidth > clientWidth + scrollLeft;
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if (showLeftScroll !== this.state.showLeftScroll || showRightScroll !== this.state.showRightScroll) {
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this.setState({ showLeftScroll, showRightScroll });
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}
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}
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}, _temp;
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}
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componentDidMount() {
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// eslint-disable-next-line react/no-did-mount-set-state
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this.setState({ mounted: true });
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this.updateIndicatorState(this.props);
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this.updateScrollButtonState();
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if (this.props.action) {
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this.props.action({
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updateIndicator: this.handleResize
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});
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}
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}
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componentDidUpdate(prevProps, prevState) {
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this.updateScrollButtonState();
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// The index might have changed at the same time.
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// We need to check again the right indicator position.
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this.updateIndicatorState(this.props);
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if (this.state.indicatorStyle !== prevState.indicatorStyle) {
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this.scrollSelectedIntoView();
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}
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}
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componentWillUnmount() {
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this.handleResize.cancel();
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this.handleTabsScroll.cancel();
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}
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updateIndicatorState(props) {
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const { theme, value } = props;
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const { tabsMeta, tabMeta } = this.getTabsMeta(value, theme.direction);
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let left = 0;
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if (tabMeta && tabsMeta) {
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const correction = theme.direction === 'rtl' ? tabsMeta.scrollLeftNormalized + tabsMeta.clientWidth - tabsMeta.scrollWidth : tabsMeta.scrollLeft;
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left = tabMeta.left - tabsMeta.left + correction;
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}
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const indicatorStyle = {
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left,
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// May be wrong until the font is loaded.
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width: tabMeta ? tabMeta.width : 0
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};
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if ((indicatorStyle.left !== this.state.indicatorStyle.left || indicatorStyle.width !== this.state.indicatorStyle.width) && !_Number$isNaN(indicatorStyle.left) && !_Number$isNaN(indicatorStyle.width)) {
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this.setState({ indicatorStyle });
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}
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}
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render() {
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const _props = this.props,
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{
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action,
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buttonClassName,
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centered,
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children: childrenProp,
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classes,
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className: classNameProp,
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fullWidth,
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indicatorClassName,
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indicatorColor,
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onChange,
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scrollable,
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scrollButtons,
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TabScrollButton: TabScrollButtonProp,
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textColor,
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theme,
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value
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} = _props,
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other = _objectWithoutProperties(_props, ['action', 'buttonClassName', 'centered', 'children', 'classes', 'className', 'fullWidth', 'indicatorClassName', 'indicatorColor', 'onChange', 'scrollable', 'scrollButtons', 'TabScrollButton', 'textColor', 'theme', 'value']);
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const className = classNames(classes.root, classNameProp);
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const scrollerClassName = classNames(classes.scrollingContainer, {
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[classes.fixed]: !scrollable,
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[classes.scrollable]: scrollable
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});
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const tabItemContainerClassName = classNames(classes.flexContainer, {
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[classes.centered]: centered && !scrollable
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});
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const indicator = React.createElement(TabIndicator, {
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style: this.state.indicatorStyle,
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className: indicatorClassName,
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color: indicatorColor
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});
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this.valueToIndex = {};
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let childIndex = 0;
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const children = React.Children.map(childrenProp, child => {
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if (!React.isValidElement(child)) {
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return null;
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}
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const childValue = child.props.value || childIndex;
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this.valueToIndex[childValue] = childIndex;
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const selected = childValue === value;
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childIndex += 1;
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return React.cloneElement(child, {
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fullWidth,
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indicator: selected && !this.state.mounted && indicator,
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selected,
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onChange,
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textColor,
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value: childValue
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});
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});
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const conditionalElements = this.getConditionalElements();
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return React.createElement(
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'div',
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_extends({ className: className }, other),
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React.createElement(EventListener, { target: 'window', onResize: this.handleResize }),
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conditionalElements.scrollbarSizeListener,
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React.createElement(
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'div',
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{ className: classes.flexContainer },
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conditionalElements.scrollButtonLeft,
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React.createElement(
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'div',
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{
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className: scrollerClassName,
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style: this.state.scrollerStyle,
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ref: node => {
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this.tabs = node;
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},
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role: 'tablist',
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onScroll: this.handleTabsScroll
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},
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React.createElement(
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'div',
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{ className: tabItemContainerClassName },
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children
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),
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this.state.mounted && indicator
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),
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conditionalElements.scrollButtonRight
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)
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);
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}
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}
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Tabs.propTypes = process.env.NODE_ENV !== "production" ? {
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/**
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* Callback fired when the component mounts.
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* This is useful when you want to trigger an action programmatically.
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* It currently only supports `updateIndicator()` action.
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*
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* @param {object} actions This object contains all possible actions
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* that can be triggered programmatically.
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*/
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action: PropTypes.func,
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/**
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* The CSS class name of the scroll button elements.
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*/
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buttonClassName: PropTypes.string,
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/**
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* If `true`, the tabs will be centered.
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* This property is intended for large views.
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*/
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centered: PropTypes.bool,
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/**
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* The content of the component.
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*/
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children: PropTypes.node,
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/**
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* Useful to extend the style applied to components.
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*/
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classes: PropTypes.object.isRequired,
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/**
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* @ignore
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*/
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className: PropTypes.string,
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/**
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* If `true`, the tabs will grow to use all the available space.
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* This property is intended for small views, like on mobile.
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*/
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fullWidth: PropTypes.bool,
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/**
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* The CSS class name of the indicator element.
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*/
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indicatorClassName: PropTypes.string,
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/**
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* Determines the color of the indicator.
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*/
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indicatorColor: PropTypes.oneOfType([PropTypes.string, PropTypes.oneOf(['secondary', 'primary'])]),
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/**
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* Callback fired when the value changes.
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*
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* @param {object} event The event source of the callback
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* @param {number} value We default to the index of the child
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*/
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onChange: PropTypes.func,
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/**
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* True invokes scrolling properties and allow for horizontally scrolling
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* (or swiping) the tab bar.
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*/
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scrollable: PropTypes.bool,
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/**
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* Determine behavior of scroll buttons when tabs are set to scroll
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* `auto` will only present them on medium and larger viewports
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* `on` will always present them
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* `off` will never present them
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*/
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scrollButtons: PropTypes.oneOf(['auto', 'on', 'off']),
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/**
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* The component used to render the scroll buttons.
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*/
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TabScrollButton: PropTypes.oneOfType([PropTypes.string, PropTypes.func]),
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/**
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* Determines the color of the `Tab`.
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*/
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textColor: PropTypes.oneOf(['secondary', 'primary', 'inherit']),
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/**
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* @ignore
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*/
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theme: PropTypes.object.isRequired,
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/**
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* The value of the currently selected `Tab`.
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* If you don't want any selected `Tab`, you can set this property to `false`.
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*/
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value: PropTypes.any
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} : {};
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Tabs.defaultProps = {
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centered: false,
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fullWidth: false,
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indicatorColor: 'secondary',
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scrollable: false,
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scrollButtons: 'auto',
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TabScrollButton,
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textColor: 'inherit'
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};
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export default withStyles(styles, { name: 'MuiTabs', withTheme: true })(Tabs); |