387 lines
9.6 KiB
Plaintext
387 lines
9.6 KiB
Plaintext
// @flow
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import React from 'react';
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import type { Element, Node } from 'react';
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import classNames from 'classnames';
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import keycode from 'keycode';
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import warning from 'warning';
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import Menu from '../Menu/Menu';
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import { isDirty } from '../Input/Input';
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import ArrowDropDownIcon from '../svg-icons/ArrowDropDown';
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type ProvidedProps = {
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classes: Object,
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};
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export type Props = {
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/**
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* If true, the width of the popover will automatically be set according to the items inside the
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* menu, otherwise it will be at least the width of the select input.
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*/
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autoWidth: boolean,
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/**
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* The option elements to populate the select with.
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* Can be some `MenuItem` when `native` is false and `option` when `native` is true.
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*/
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children: 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?: Object,
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/**
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* The CSS class name of the select element.
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*/
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className?: string,
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/**
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* If `true`, the select will be disabled.
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*/
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disabled?: boolean,
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/**
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* If `true`, the selected item is displayed even if its value is empty.
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* You can only use it when the `native` property is `false` (default).
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*/
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displayEmpty: boolean,
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/**
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* If `true`, the component will be using a native `select` element.
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*/
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native: boolean,
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/**
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* If true, `value` must be an array and the menu will support multiple selections.
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* You can only use it when the `native` property is `false` (default).
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*/
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multiple: boolean,
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/**
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* Properties applied to the `Menu` element.
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*/
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MenuProps?: Object,
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/**
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* Name attribute of the `select` or hidden `input` element.
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*/
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name?: string,
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/**
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* @ignore
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*/
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onBlur?: Function,
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/**
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* Callback function fired when a menu item is selected.
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*
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* @param {object} event The event source of the callback
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* @param {object} child The react element that was selected
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*/
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onChange?: (event: SyntheticUIEvent<*>, child: Element<any>) => void,
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/**
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* @ignore
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*/
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onFocus?: Function,
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/**
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* @ignore
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*/
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readOnly?: boolean,
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/**
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* Render the selected value.
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* You can only use it when the `native` property is `false` (default).
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*/
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renderValue?: Function,
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/**
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* Use that property to pass a ref callback to the native select element.
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*/
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selectRef?: Function,
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/**
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* The value of the component, required for a controlled component.
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*/
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value?: string | number | $ReadOnlyArray<string | number>,
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};
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type State = {
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open: boolean,
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anchorEl: ?HTMLElement,
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};
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/**
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* @ignore - internal component.
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*/
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class SelectInput extends React.Component<ProvidedProps & Props, State> {
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static muiName = 'SelectInput';
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state = {
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anchorEl: null,
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open: false,
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};
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ignoreNextBlur = false;
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handleClick = (event: SyntheticMouseEvent<HTMLElement>) => {
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// Opening the menu is going to blur the. It will be focused back when closed.
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this.ignoreNextBlur = true;
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this.setState({
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open: true,
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anchorEl: event.currentTarget,
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});
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};
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handleRequestClose = () => {
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this.setState({
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open: false,
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});
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};
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handleItemClick = (child: Element<any>) => (event: SyntheticMouseEvent<> & { target?: any }) => {
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if (!this.props.multiple) {
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this.setState({
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open: false,
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});
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}
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if (this.props.onChange) {
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const { onChange } = this.props;
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let value;
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let target;
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if (event.target) {
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target = event.target;
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}
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if (this.props.multiple) {
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value = Array.isArray(this.props.value) ? [...this.props.value] : [];
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const itemIndex = value.indexOf(child.props.value);
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if (itemIndex === -1) {
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value.push(child.props.value);
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} else {
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value.splice(itemIndex, 1);
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}
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} else {
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value = child.props.value;
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}
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event.persist();
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event.target = { ...target, value };
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onChange(event, child);
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}
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};
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handleBlur = (event: SyntheticFocusEvent<>) => {
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if (this.ignoreNextBlur === true) {
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// The parent components are relying on the bubbling of the event.
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event.stopPropagation();
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this.ignoreNextBlur = false;
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return;
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}
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if (this.props.onBlur) {
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this.props.onBlur(event);
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}
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};
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handleKeyDown = (event: SyntheticKeyboardEvent<HTMLElement>) => {
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if (this.props.readOnly) {
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return;
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}
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if (['space', 'up', 'down'].includes(keycode(event))) {
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event.preventDefault();
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// Opening the menu is going to blur the. It will be focused back when closed.
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this.ignoreNextBlur = true;
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this.setState({
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open: true,
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anchorEl: event.currentTarget,
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});
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}
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};
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handleSelectRef = (node: ?HTMLElement) => {
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if (!this.props.selectRef) {
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return;
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}
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this.props.selectRef({
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node,
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// By pass the native input as we expose a rich object (array).
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value: this.props.value,
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});
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};
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render() {
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const {
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autoWidth,
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children,
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className: classNameProp,
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classes,
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disabled,
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displayEmpty,
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name,
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native,
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multiple,
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MenuProps = {},
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onBlur,
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onChange,
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onFocus,
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readOnly,
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renderValue,
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selectRef,
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value,
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...other
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} = this.props;
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if (native) {
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warning(
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multiple === false,
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'Material-UI: you can not use the `native` and `multiple` properties ' +
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'at the same time on a `Select` component.',
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);
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warning(
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!renderValue,
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'Material-UI: the `renderValue` property is not used by the native implementation.',
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);
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warning(
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!displayEmpty,
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'Material-UI: the `displayEmpty` property is not used by the native implementation.',
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);
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return (
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<div className={classes.root}>
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<select
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className={classNames(
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classes.select,
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{
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[classes.disabled]: disabled,
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},
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classNameProp,
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)}
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name={name}
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disabled={disabled}
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onBlur={onBlur}
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onChange={onChange}
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onFocus={onFocus}
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value={value}
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readOnly={readOnly}
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{...other}
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ref={selectRef}
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>
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{children}
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</select>
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<ArrowDropDownIcon className={classes.icon} />
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</div>
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);
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}
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if (value === undefined) {
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throw new Error(
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'Material-UI: the `value` property is required ' +
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'when using the `Select` component with `native=false`.',
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);
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}
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let display;
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let displaySingle = '';
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const displayMultiple = [];
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let computeDisplay = false;
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// No need to display any value if the field is empty.
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if (isDirty(this.props) || displayEmpty) {
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if (renderValue) {
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display = renderValue(value);
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} else {
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computeDisplay = true;
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}
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}
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const items = React.Children.map(children, child => {
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if (!React.isValidElement(child)) {
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return null;
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}
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let selected;
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if (multiple) {
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if (!Array.isArray(value)) {
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throw new Error(
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'Material-UI: the `value` property must be an array ' +
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'when using the `Select` component with `multiple`.',
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);
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}
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selected = value.indexOf(child.props.value) !== -1;
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if (selected && computeDisplay) {
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displayMultiple.push(child.props.children);
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}
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} else {
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selected = value === child.props.value;
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if (selected && computeDisplay) {
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displaySingle = child.props.children;
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}
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}
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return React.cloneElement(child, {
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role: 'option',
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selected,
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onClick: this.handleItemClick(child),
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});
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});
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if (computeDisplay) {
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display = multiple ? displayMultiple.join(', ') : displaySingle;
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}
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const minimumMenuWidth =
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this.state.anchorEl != null && !autoWidth ? this.state.anchorEl.clientWidth : undefined;
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return (
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<div className={classes.root}>
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<div
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className={classNames(
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classes.select,
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classes.selectMenu,
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{
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[classes.disabled]: disabled,
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},
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classNameProp,
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)}
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data-mui-test="SelectDisplay"
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aria-pressed={this.state.open ? 'true' : 'false'}
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tabIndex={disabled ? null : 0}
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role="button"
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aria-owns={this.state.open ? `menu-${name || ''}` : null}
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aria-haspopup="true"
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onKeyDown={this.handleKeyDown}
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onBlur={this.handleBlur}
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onClick={disabled || readOnly ? null : this.handleClick}
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onFocus={onFocus}
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>
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{display}
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</div>
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<input
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value={Array.isArray(value) ? value.join(',') : value}
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name={name}
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readOnly={readOnly}
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{...other}
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ref={this.handleSelectRef}
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type="hidden"
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/>
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<ArrowDropDownIcon className={classes.icon} />
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<Menu
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id={`menu-${name || ''}`}
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anchorEl={this.state.anchorEl}
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open={this.state.open}
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onRequestClose={this.handleRequestClose}
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{...MenuProps}
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MenuListProps={{
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...MenuProps.MenuListProps,
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role: 'listbox',
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}}
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PaperProps={{
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...MenuProps.PaperProps,
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style: {
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minWidth: minimumMenuWidth,
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...(MenuProps.PaperProps != null ? MenuProps.PaperProps.style : null),
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},
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}}
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>
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{items}
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</Menu>
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</div>
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);
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}
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}
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export default SelectInput;
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