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eslint-disable prettier/prettier */\nconst React = require('react')\nconst PropTypes = require('prop-types')\nconst { findDOMNode } = require('react-dom')\nconst scrollIntoView = require('dom-scroll-into-view')\n\nconst IMPERATIVE_API = [\n 'blur',\n 'checkValidity',\n 'click',\n 'focus',\n 'select',\n 'setCustomValidity',\n 'setSelectionRange',\n 'setRangeText',\n]\n\nfunction getScrollOffset() {\n return {\n x: (window.pageXOffset !== undefined)\n ? window.pageXOffset\n : (document.documentElement || document.body.parentNode || document.body).scrollLeft,\n y: (window.pageYOffset !== undefined)\n ? window.pageYOffset\n : (document.documentElement || document.body.parentNode || document.body).scrollTop,\n }\n}\n\nclass Autocomplete extends React.Component {\n\n static propTypes = {\n /**\n * The items to display in the dropdown menu\n */\n items: PropTypes.array.isRequired,\n /**\n * The value to display in the input field\n */\n value: PropTypes.any,\n /**\n * Arguments: `event: Event, value: String`\n *\n * Invoked every time the user changes the input's value.\n */\n onChange: PropTypes.func,\n /**\n * Arguments: `value: String, item: Any`\n *\n * Invoked when the user selects an item from the dropdown menu.\n */\n onSelect: PropTypes.func,\n /**\n * Arguments: `item: Any, value: String`\n *\n * Invoked for each entry in `items` and its return value is used to\n * determine whether or not it should be displayed in the dropdown menu.\n * By default all items are always rendered.\n */\n shouldItemRender: PropTypes.func,\n /**\n * Arguments: `item: Any`\n *\n * Invoked when attempting to select an item. The return value is used to\n * determine whether the item should be selectable or not.\n * By default all items are selectable.\n */\n isItemSelectable: PropTypes.func,\n /**\n * Arguments: `itemA: Any, itemB: Any, value: String`\n *\n * The function which is used to sort `items` before display.\n */\n sortItems: PropTypes.func,\n /**\n * Arguments: `item: Any`\n *\n * Used to read the display value from each entry in `items`.\n */\n getItemValue: PropTypes.func.isRequired,\n /**\n * Arguments: `item: Any, isHighlighted: Boolean, styles: Object`\n *\n * Invoked for each entry in `items` that also passes `shouldItemRender` to\n * generate the render tree for each item in the dropdown menu. `styles` is\n * an optional set of styles that can be applied to improve the look/feel\n * of the items in the dropdown menu.\n */\n renderItem: PropTypes.func.isRequired,\n /**\n * Arguments: `items: Array, value: String, styles: Object`\n *\n * Invoked to generate the render tree for the dropdown menu. Ensure the\n * returned tree includes every entry in `items` or else the highlight order\n * and keyboard navigation logic will break. `styles` will contain\n * { top, left, minWidth } which are the coordinates of the top-left corner\n * and the width of the dropdown menu.\n */\n renderMenu: PropTypes.func,\n /**\n * Styles that are applied to the dropdown menu in the default `renderMenu`\n * implementation. If you override `renderMenu` and you want to use\n * `menuStyle` you must manually apply them (`this.props.menuStyle`).\n */\n menuStyle: PropTypes.object,\n /**\n * Arguments: `props: Object`\n *\n * Invoked to generate the input element. The `props` argument is the result\n * of merging `props.inputProps` with a selection of props that are required\n * both for functionality and accessibility. At the very least you need to\n * apply `props.ref` and all `props.on` event handlers. Failing to do\n * this will cause `Autocomplete` to behave unexpectedly.\n */\n renderInput: PropTypes.func,\n /**\n * Props passed to `props.renderInput`. By default these props will be\n * applied to the `` element rendered by `Autocomplete`, unless you\n * have specified a custom value for `props.renderInput`. Any properties\n * supported by `HTMLInputElement` can be specified, apart from the\n * following which are set by `Autocomplete`: value, autoComplete, role,\n * aria-autocomplete. `inputProps` is commonly used for (but not limited to)\n * placeholder, event handlers (onFocus, onBlur, etc.), autoFocus, etc..\n */\n inputProps: PropTypes.object,\n /**\n * Props that are applied to the element which wraps the `` and\n * dropdown menu elements rendered by `Autocomplete`.\n */\n wrapperProps: PropTypes.object,\n /**\n * This is a shorthand for `wrapperProps={{ style: }}`.\n * Note that `wrapperStyle` is applied before `wrapperProps`, so the latter\n * will win if it contains a `style` entry.\n */\n wrapperStyle: PropTypes.object,\n /**\n * Whether or not to automatically highlight the top match in the dropdown\n * menu.\n */\n autoHighlight: PropTypes.bool,\n /**\n * Whether or not to automatically select the highlighted item when the\n * `` loses focus.\n */\n selectOnBlur: PropTypes.bool,\n /**\n * Arguments: `isOpen: Boolean`\n *\n * Invoked every time the dropdown menu's visibility changes (i.e. every\n * time it is displayed/hidden).\n */\n onMenuVisibilityChange: PropTypes.func,\n /**\n * Used to override the internal logic which displays/hides the dropdown\n * menu. This is useful if you want to force a certain state based on your\n * UX/business logic. Use it together with `onMenuVisibilityChange` for\n * fine-grained control over the dropdown menu dynamics.\n */\n open: PropTypes.bool,\n debug: PropTypes.bool,\n }\n\n static defaultProps = {\n value: '',\n wrapperProps: {},\n wrapperStyle: {\n display: 'inline-block'\n },\n inputProps: {},\n renderInput(props) {\n return \n },\n onChange() {},\n onSelect() {},\n isItemSelectable() { return true },\n renderMenu(items, value, style) {\n return
\n },\n menuStyle: {\n borderRadius: '3px',\n boxShadow: '0 2px 12px rgba(0, 0, 0, 0.1)',\n background: 'rgba(255, 255, 255, 0.9)',\n padding: '2px 0',\n fontSize: '90%',\n position: 'fixed',\n overflow: 'auto',\n maxHeight: '50%', // TODO: don't cheat, let it flow to the bottom\n },\n autoHighlight: true,\n selectOnBlur: false,\n onMenuVisibilityChange() {},\n }\n\n constructor(props) {\n super(props)\n this.state = {\n isOpen: false,\n highlightedIndex: null,\n }\n this._debugStates = []\n this.ensureHighlightedIndex = this.ensureHighlightedIndex.bind(this)\n this.exposeAPI = this.exposeAPI.bind(this)\n this.handleInputFocus = this.handleInputFocus.bind(this)\n this.handleInputBlur = this.handleInputBlur.bind(this)\n this.handleChange = this.handleChange.bind(this)\n this.handleKeyDown = this.handleKeyDown.bind(this)\n this.handleInputClick = this.handleInputClick.bind(this)\n this.maybeAutoCompleteText = this.maybeAutoCompleteText.bind(this)\n }\n\n componentWillMount() {\n // this.refs is frozen, so we need to assign a new object to it\n this.refs = {}\n this._ignoreBlur = false\n this._ignoreFocus = false\n this._scrollOffset = null\n this._scrollTimer = null\n }\n\n componentWillUnmount() {\n clearTimeout(this._scrollTimer)\n this._scrollTimer = null\n }\n\n componentWillReceiveProps(nextProps) {\n if (this.state.highlightedIndex !== null) {\n this.setState(this.ensureHighlightedIndex)\n }\n if (nextProps.autoHighlight && (this.props.value !== nextProps.value || this.state.highlightedIndex === null)) {\n this.setState(this.maybeAutoCompleteText)\n }\n }\n\n componentDidMount() {\n if (this.isOpen()) {\n this.setMenuPositions()\n }\n }\n\n componentDidUpdate(prevProps, prevState) {\n if ((this.state.isOpen && !prevState.isOpen) || ('open' in this.props && this.props.open && !prevProps.open))\n this.setMenuPositions()\n\n this.maybeScrollItemIntoView()\n if (prevState.isOpen !== this.state.isOpen) {\n this.props.onMenuVisibilityChange(this.state.isOpen)\n }\n }\n\n exposeAPI(el) {\n this.refs.input = el\n IMPERATIVE_API.forEach(ev => this[ev] = (el && el[ev] && el[ev].bind(el)))\n }\n\n maybeScrollItemIntoView() {\n if (this.isOpen() && this.state.highlightedIndex !== null) {\n const itemNode = this.refs[`item-${this.state.highlightedIndex}`]\n const menuNode = this.refs.menu\n scrollIntoView(\n findDOMNode(itemNode),\n findDOMNode(menuNode),\n { onlyScrollIfNeeded: true }\n )\n }\n }\n\n handleKeyDown(event) {\n if (Autocomplete.keyDownHandlers[event.key])\n Autocomplete.keyDownHandlers[event.key].call(this, event)\n else if (!this.isOpen()) {\n this.setState({\n isOpen: true\n })\n }\n }\n\n handleChange(event) {\n this.props.onChange(event, event.target.value)\n }\n\n static keyDownHandlers = {\n ArrowDown(event) {\n event.preventDefault()\n const items = this.getFilteredItems(this.props)\n if (!items.length) return\n const { highlightedIndex } = this.state\n let index = highlightedIndex === null ? -1 : highlightedIndex\n for (let i = 0; i < items.length ; i++) {\n const p = (index + i + 1) % items.length\n if (this.props.isItemSelectable(items[p])) {\n index = p\n break\n }\n }\n if (index > -1 && index !== highlightedIndex) {\n this.setState({\n highlightedIndex: index,\n isOpen: true,\n })\n }\n },\n\n ArrowUp(event) {\n event.preventDefault()\n const items = this.getFilteredItems(this.props)\n if (!items.length) return\n const { highlightedIndex } = this.state\n let index = highlightedIndex === null ? items.length : highlightedIndex\n for (let i = 0; i < items.length ; i++) {\n const p = (index - (1 + i) + items.length) % items.length\n if (this.props.isItemSelectable(items[p])) {\n index = p\n break\n }\n }\n if (index !== items.length) {\n this.setState({\n highlightedIndex: index,\n isOpen: true,\n })\n }\n },\n\n Enter(event) {\n // Key code 229 is used for selecting items from character selectors (Pinyin, Kana, etc)\n if (event.keyCode !== 13) return\n // In case the user is currently hovering over the menu\n this.setIgnoreBlur(false)\n if (!this.isOpen()) {\n // menu is closed so there is no selection to accept -> do nothing\n return\n }\n else if (this.state.highlightedIndex == null) {\n // input has focus but no menu item is selected + enter is hit -> close the menu, highlight whatever's in input\n this.setState({\n isOpen: false\n }, () => {\n this.refs.input.select()\n })\n }\n else {\n // text entered + menu item has been highlighted + enter is hit -> update value to that of selected menu item, close the menu\n event.preventDefault()\n const item = this.getFilteredItems(this.props)[this.state.highlightedIndex]\n const value = this.props.getItemValue(item)\n this.setState({\n isOpen: false,\n highlightedIndex: null\n }, () => {\n //this.refs.input.focus() // TODO: file issue\n this.refs.input.setSelectionRange(\n value.length,\n value.length\n )\n this.props.onSelect(value, item)\n })\n }\n },\n\n Escape() {\n // In case the user is currently hovering over the menu\n this.setIgnoreBlur(false)\n this.setState({\n highlightedIndex: null,\n isOpen: false\n })\n },\n\n Tab() {\n // In case the user is currently hovering over the menu\n this.setIgnoreBlur(false)\n },\n }\n\n getFilteredItems(props) {\n let items = props.items\n\n if (props.shouldItemRender) {\n items = items.filter((item) => (\n props.shouldItemRender(item, props.value)\n ))\n }\n\n if (props.sortItems) {\n items.sort((a, b) => (\n props.sortItems(a, b, props.value)\n ))\n }\n\n return items\n }\n\n maybeAutoCompleteText(state, props) {\n const { highlightedIndex } = state\n const { value, getItemValue } = props\n let index = highlightedIndex === null ? 0 : highlightedIndex\n let items = this.getFilteredItems(props)\n for (let i = 0; i < items.length ; i++) {\n if (props.isItemSelectable(items[index]))\n break\n index = (index + 1) % items.length\n }\n const matchedItem = items[index] && props.isItemSelectable(items[index]) ? items[index] : null\n if (value !== '' && matchedItem) {\n const itemValue = getItemValue(matchedItem)\n const itemValueDoesMatch = (itemValue.toLowerCase().indexOf(\n value.toLowerCase()\n ) === 0)\n if (itemValueDoesMatch) {\n return { highlightedIndex: index }\n }\n }\n return { highlightedIndex: null }\n }\n\n ensureHighlightedIndex(state, props) {\n if (state.highlightedIndex >= this.getFilteredItems(props).length) {\n return { highlightedIndex: null }\n }\n }\n\n setMenuPositions() {\n const node = this.refs.input\n const rect = node.getBoundingClientRect()\n const computedStyle = global.window.getComputedStyle(node)\n const marginBottom = parseInt(computedStyle.marginBottom, 10) || 0\n const marginLeft = parseInt(computedStyle.marginLeft, 10) || 0\n const marginRight = parseInt(computedStyle.marginRight, 10) || 0\n this.setState({\n menuTop: rect.bottom + marginBottom,\n menuLeft: rect.left + marginLeft,\n menuWidth: rect.width + marginLeft + marginRight\n })\n }\n\n highlightItemFromMouse(index) {\n this.setState({ highlightedIndex: index })\n }\n\n selectItemFromMouse(item) {\n const value = this.props.getItemValue(item)\n // The menu will de-render before a mouseLeave event\n // happens. Clear the flag to release control over focus\n this.setIgnoreBlur(false)\n this.setState({\n isOpen: false,\n highlightedIndex: null\n }, () => {\n this.props.onSelect(value, item)\n })\n }\n\n setIgnoreBlur(ignore) {\n this._ignoreBlur = ignore\n }\n\n renderMenu() {\n const items = this.getFilteredItems(this.props).map((item, index) => {\n const element = this.props.renderItem(\n item,\n this.state.highlightedIndex === index,\n { cursor: 'default' }\n )\n return React.cloneElement(element, {\n onMouseEnter: this.props.isItemSelectable(item) ?\n () => this.highlightItemFromMouse(index) : null,\n onClick: this.props.isItemSelectable(item) ?\n () => this.selectItemFromMouse(item) : null,\n ref: e => this.refs[`item-${index}`] = e,\n })\n })\n const style = {\n left: this.state.menuLeft,\n top: this.state.menuTop,\n minWidth: this.state.menuWidth,\n }\n const menu = this.props.renderMenu(items, this.props.value, style)\n return React.cloneElement(menu, {\n ref: e => this.refs.menu = e,\n // Ignore blur to prevent menu from de-rendering before we can process click\n onTouchStart: () => this.setIgnoreBlur(true),\n onMouseEnter: () => this.setIgnoreBlur(true),\n onMouseLeave: () => this.setIgnoreBlur(false),\n })\n }\n\n handleInputBlur(event) {\n if (this._ignoreBlur) {\n this._ignoreFocus = true\n this._scrollOffset = getScrollOffset()\n this.refs.input.focus()\n return\n }\n let setStateCallback\n const { highlightedIndex } = this.state\n if (this.props.selectOnBlur && highlightedIndex !== null) {\n const items = this.getFilteredItems(this.props)\n const item = items[highlightedIndex]\n const value = this.props.getItemValue(item)\n setStateCallback = () => this.props.onSelect(value, item)\n }\n this.setState({\n isOpen: false,\n highlightedIndex: null\n }, setStateCallback)\n const { onBlur } = this.props.inputProps\n if (onBlur) {\n onBlur(event)\n }\n }\n\n handleInputFocus(event) {\n if (this._ignoreFocus) {\n this._ignoreFocus = false\n const { x, y } = this._scrollOffset\n this._scrollOffset = null\n // Focus will cause the browser to scroll the into view.\n // This can cause the mouse coords to change, which in turn\n // could cause a new highlight to happen, cancelling the click\n // event (when selecting with the mouse)\n window.scrollTo(x, y)\n // Some browsers wait until all focus event handlers have been\n // processed before scrolling the into view, so let's\n // scroll again on the next tick to ensure we're back to where\n // the user was before focus was lost. We could do the deferred\n // scroll only, but that causes a jarring split second jump in\n // some browsers that scroll before the focus event handlers\n // are triggered.\n clearTimeout(this._scrollTimer)\n this._scrollTimer = setTimeout(() => {\n this._scrollTimer = null\n window.scrollTo(x, y)\n }, 0)\n return\n }\n this.setState({ isOpen: true })\n const { onFocus } = this.props.inputProps\n if (onFocus) {\n onFocus(event)\n }\n }\n\n isInputFocused() {\n const el = this.refs.input\n return el.ownerDocument && (el === el.ownerDocument.activeElement)\n }\n\n handleInputClick() {\n // Input will not be focused if it's disabled\n if (this.isInputFocused() && !this.isOpen())\n this.setState({ isOpen: true })\n }\n\n composeEventHandlers(internal, external) {\n return external\n ? e => { internal(e); external(e) }\n : internal\n }\n\n isOpen() {\n return 'open' in this.props ? this.props.open : this.state.isOpen\n }\n\n render() {\n if (this.props.debug) { // you don't like it, you love it\n this._debugStates.push({\n id: this._debugStates.length,\n state: this.state\n })\n }\n\n const { inputProps } = this.props\n const open = this.isOpen()\n return (\n
\n {this.props.renderInput({\n ...inputProps,\n role: 'combobox',\n 'aria-autocomplete': 'list',\n 'aria-expanded': open,\n autoComplete: 'off',\n ref: this.exposeAPI,\n onFocus: this.handleInputFocus,\n onBlur: this.handleInputBlur,\n onChange: this.handleChange,\n onKeyDown: this.composeEventHandlers(this.handleKeyDown, inputProps.onKeyDown),\n onClick: this.composeEventHandlers(this.handleInputClick, inputProps.onClick),\n value: this.props.value,\n })}\n {open && this.renderMenu()}\n {this.props.debug && (\n 
\n            {JSON.stringify(this._debugStates.slice(Math.max(0, this._debugStates.length - 5), this._debugStates.length), null, 2)}\n
\n )}\n
\n )\n }\n}\n\nmodule.exports = Autocomplete\n\n"],"names":["React","require","PropTypes","findDOMNode","scrollIntoView","IMPERATIVE_API","Autocomplete","_React$Component","props","_this","_classCallCheck2","default","state","isOpen","highlightedIndex","_debugStates","ensureHighlightedIndex","bind","exposeAPI","handleInputFocus","handleInputBlur","handleChange","handleKeyDown","handleInputClick","maybeAutoCompleteText","_inherits2","_createClass2","key","value","this","refs","_ignoreBlur","_ignoreFocus","_scrollOffset","_scrollTimer","clearTimeout","nextProps","setState","autoHighlight","setMenuPositions","prevProps","prevState","open","maybeScrollItemIntoView","onMenuVisibilityChange","el","_this2","input","forEach","ev","itemNode","concat","menuNode","menu","onlyScrollIfNeeded","event","keyDownHandlers","call","onChange","target","items","shouldItemRender","filter","item","sortItems","sort","a","b","getItemValue","index","getFilteredItems","i","length","isItemSelectable","matchedItem","toLowerCase","indexOf","node","rect","getBoundingClientRect","computedStyle","global","window","getComputedStyle","marginBottom","parseInt","marginLeft","marginRight","menuTop","bottom","menuLeft","left","menuWidth","width","_this3","setIgnoreBlur","onSelect","ignore","_this4","map","element","renderItem","cursor","cloneElement","onMouseEnter","highlightItemFromMouse","onClick","selectItemFromMouse","ref","e","style","top","minWidth","renderMenu","onTouchStart","onMouseLeave","setStateCallback","_this5","x","undefined","pageXOffset","document","documentElement","body","parentNode","scrollLeft","y","pageYOffset","scrollTop","focus","selectOnBlur","onBlur","inputProps","_this6","_this$_scrollOffset","scrollTo","setTimeout","onFocus","ownerDocument","activeElement","isInputFocused","internal","external","debug","push","id","createElement","_extends2","_objectSpread","wrapperStyle","wrapperProps","renderInput","role","autoComplete","onKeyDown","composeEventHandlers","JSON","stringify","slice","Math","max","Component","_defineProperty2","array","isRequired","any","func","menuStyle","object","bool","display","children","borderRadius","boxShadow","background","padding","fontSize","position","overflow","maxHeight","ArrowDown","preventDefault","p","ArrowUp","Enter","_this7","keyCode","select","setSelectionRange","Escape","Tab","module","exports"],"sourceRoot":""}