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(global, factory) {\n    typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :\n    typeof define === 'function' && define.amd ? define(factory) :\n    (global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.autocomplete = factory());\n}(this, (function () { 'use strict';\n\n    /*\r\n     * https://github.com/kraaden/autocomplete\r\n     * Copyright (c) 2016 Denys Krasnoshchok\r\n     * MIT License\r\n     */\r\n    function autocomplete(settings) {\r\n        // just an alias to minimize JS file size\r\n        var doc = document;\r\n        var container = settings.container || doc.createElement(\"div\");\r\n        container.id = container.id || \"autocomplete-\" + uid();\r\n        var containerStyle = container.style;\r\n        var debounceWaitMs = settings.debounceWaitMs || 0;\r\n        var preventSubmit = settings.preventSubmit || false;\r\n        var disableAutoSelect = settings.disableAutoSelect || false;\r\n        var items = [];\r\n        var inputValue = \"\";\r\n        var minLen = 2;\r\n        var showOnFocus = settings.showOnFocus;\r\n        var selected;\r\n        var keypressCounter = 0;\r\n        var debounceTimer;\r\n        if (settings.minLength !== undefined) {\r\n            minLen = settings.minLength;\r\n        }\r\n        if (!settings.input) {\r\n            throw new Error(\"input undefined\");\r\n        }\r\n        var input = settings.input;\r\n        container.className = \"autocomplete \" + (settings.className || \"\");\r\n        container.setAttribute(\"role\", \"listbox\");\r\n        input.setAttribute(\"role\", \"combobox\");\r\n        input.setAttribute(\"aria-expanded\", \"false\");\r\n        input.setAttribute(\"aria-autocomplete\", \"list\");\r\n        input.setAttribute(\"aria-controls\", container.id);\r\n        input.setAttribute(\"aria-owns\", container.id);\r\n        input.setAttribute(\"aria-activedescendant\", \"\");\r\n        input.setAttribute(\"aria-haspopup\", \"listbox\");\r\n        // IOS implementation for fixed positioning has many bugs, so we will use absolute positioning\r\n        containerStyle.position = \"absolute\";\r\n        /**\r\n         * Generate a unique ID\r\n         */\r\n        function uid() {\r\n            return Date.now().toString(36) + Math.random().toString(36).substring(2);\r\n        }\r\n        /**\r\n         * Detach the container from DOM\r\n         */\r\n        function detach() {\r\n            var parent = container.parentNode;\r\n            if (parent) {\r\n                parent.removeChild(container);\r\n            }\r\n        }\r\n        /**\r\n         * Clear debouncing timer if assigned\r\n         */\r\n        function clearDebounceTimer() {\r\n            if (debounceTimer) {\r\n                window.clearTimeout(debounceTimer);\r\n            }\r\n        }\r\n        /**\r\n         * Attach the container to DOM\r\n         */\r\n        function attach() {\r\n            if (!container.parentNode) {\r\n                doc.body.appendChild(container);\r\n            }\r\n        }\r\n        /**\r\n         * Check if container for autocomplete is displayed\r\n         */\r\n        function containerDisplayed() {\r\n            return !!container.parentNode;\r\n        }\r\n        /**\r\n         * Clear autocomplete state and hide container\r\n         */\r\n        function clear() {\r\n            // prevent the update call if there are pending AJAX requests\r\n            keypressCounter++;\r\n            items = [];\r\n            inputValue = \"\";\r\n            selected = undefined;\r\n            input.setAttribute(\"aria-activedescendant\", \"\");\r\n            input.setAttribute(\"aria-expanded\", \"false\");\r\n            detach();\r\n        }\r\n        /**\r\n         * Update autocomplete position\r\n         */\r\n        function updatePosition() {\r\n            if (!containerDisplayed()) {\r\n                return;\r\n            }\r\n            input.setAttribute(\"aria-expanded\", \"true\");\r\n            containerStyle.height = \"auto\";\r\n            containerStyle.width = input.offsetWidth + \"px\";\r\n            var maxHeight = 0;\r\n            var inputRect;\r\n            function calc() {\r\n                var docEl = doc.documentElement;\r\n                var clientTop = docEl.clientTop || doc.body.clientTop || 0;\r\n                var clientLeft = docEl.clientLeft || doc.body.clientLeft || 0;\r\n                var scrollTop = window.pageYOffset || docEl.scrollTop;\r\n                var scrollLeft = window.pageXOffset || docEl.scrollLeft;\r\n                inputRect = input.getBoundingClientRect();\r\n                var top = inputRect.top + input.offsetHeight + scrollTop - clientTop;\r\n                var left = inputRect.left + scrollLeft - clientLeft;\r\n                containerStyle.top = top + \"px\";\r\n                containerStyle.left = left + \"px\";\r\n                maxHeight = window.innerHeight - (inputRect.top + input.offsetHeight);\r\n                if (maxHeight < 0) {\r\n                    maxHeight = 0;\r\n                }\r\n                containerStyle.top = top + \"px\";\r\n                containerStyle.bottom = \"\";\r\n                containerStyle.left = left + \"px\";\r\n                containerStyle.maxHeight = maxHeight + \"px\";\r\n            }\r\n            // the calc method must be called twice, otherwise the calculation may be wrong on resize event (chrome browser)\r\n            calc();\r\n            calc();\r\n            if (settings.customize && inputRect) {\r\n                settings.customize(input, inputRect, container, maxHeight);\r\n            }\r\n        }\r\n        /**\r\n         * Redraw the autocomplete div element with suggestions\r\n         */\r\n        function update() {\r\n            // delete all children from autocomplete DOM container\r\n            while (container.firstChild) {\r\n                container.removeChild(container.firstChild);\r\n            }\r\n            input.setAttribute(\"aria-activedescendant\", \"\");\r\n            // function for rendering autocomplete suggestions\r\n            var render = function (item, _, __) {\r\n                var itemElement = doc.createElement(\"div\");\r\n                itemElement.textContent = item.label || \"\";\r\n                return itemElement;\r\n            };\r\n            if (settings.render) {\r\n                render = settings.render;\r\n            }\r\n            // function to render autocomplete groups\r\n            var renderGroup = function (groupName, _) {\r\n                var groupDiv = doc.createElement(\"div\");\r\n                groupDiv.textContent = groupName;\r\n                return groupDiv;\r\n            };\r\n            if (settings.renderGroup) {\r\n                renderGroup = settings.renderGroup;\r\n            }\r\n            var fragment = doc.createDocumentFragment();\r\n            var prevGroup = \"#9?$\";\r\n            items.forEach(function (item, index) {\r\n                if (item.group && item.group !== prevGroup) {\r\n                    prevGroup = item.group;\r\n                    var groupDiv = renderGroup(item.group, inputValue);\r\n                    if (groupDiv) {\r\n                        groupDiv.className += \" group\";\r\n                        fragment.appendChild(groupDiv);\r\n                    }\r\n                }\r\n                var div = render(item, inputValue, index);\r\n                if (div) {\r\n                    div.id = container.id + \"_\" + index;\r\n                    div.setAttribute(\"role\", \"option\");\r\n                    div.addEventListener(\"click\", function (ev) {\r\n                        settings.onSelect(item, input);\r\n                        clear();\r\n                        ev.preventDefault();\r\n                        ev.stopPropagation();\r\n                    });\r\n                    if (item === selected) {\r\n                        div.className += \" selected\";\r\n                        div.setAttribute(\"aria-selected\", \"true\");\r\n                        input.setAttribute(\"aria-activedescendant\", div.id);\r\n                    }\r\n                    fragment.appendChild(div);\r\n                }\r\n            });\r\n            container.appendChild(fragment);\r\n            if (items.length < 1) {\r\n                if (settings.emptyMsg) {\r\n                    var empty = doc.createElement(\"div\");\r\n                    empty.id = container.id + \"_\" + uid();\r\n                    empty.className = \"empty\";\r\n                    empty.textContent = settings.emptyMsg;\r\n                    container.appendChild(empty);\r\n                    input.setAttribute(\"aria-activedescendant\", empty.id);\r\n                }\r\n                else {\r\n                    clear();\r\n                    return;\r\n                }\r\n            }\r\n            attach();\r\n            updatePosition();\r\n            updateScroll();\r\n        }\r\n        function updateIfDisplayed() {\r\n            if (containerDisplayed()) {\r\n                update();\r\n            }\r\n        }\r\n        function resizeEventHandler() {\r\n            updateIfDisplayed();\r\n        }\r\n        function scrollEventHandler(e) {\r\n            if (e.target !== container) {\r\n                updateIfDisplayed();\r\n            }\r\n            else {\r\n                e.preventDefault();\r\n            }\r\n        }\r\n        function keyupEventHandler(ev) {\r\n            var keyCode = ev.which || ev.keyCode || 0;\r\n            var ignore = settings.keysToIgnore || [38 /* Up */, 13 /* Enter */, 27 /* Esc */, 39 /* Right */, 37 /* Left */, 16 /* Shift */, 17 /* Ctrl */, 18 /* Alt */, 20 /* CapsLock */, 91 /* WindowsKey */, 9 /* Tab */];\r\n            for (var _i = 0, ignore_1 = ignore; _i < ignore_1.length; _i++) {\r\n                var key = ignore_1[_i];\r\n                if (keyCode === key) {\r\n                    return;\r\n                }\r\n            }\r\n            if (keyCode >= 112 /* F1 */ && keyCode <= 123 /* F12 */ && !settings.keysToIgnore) {\r\n                return;\r\n            }\r\n            // the down key is used to open autocomplete\r\n            if (keyCode === 40 /* Down */ && containerDisplayed()) {\r\n                return;\r\n            }\r\n            startFetch(0 /* Keyboard */);\r\n        }\r\n        /**\r\n         * Automatically move scroll bar if selected item is not visible\r\n         */\r\n        function updateScroll() {\r\n            var elements = container.getElementsByClassName(\"selected\");\r\n            if (elements.length > 0) {\r\n                var element = elements[0];\r\n                // make group visible\r\n                var previous = element.previousElementSibling;\r\n                if (previous && previous.className.indexOf(\"group\") !== -1 && !previous.previousElementSibling) {\r\n                    element = previous;\r\n                }\r\n                if (element.offsetTop < container.scrollTop) {\r\n                    container.scrollTop = element.offsetTop;\r\n                }\r\n                else {\r\n                    var selectBottom = element.offsetTop + element.offsetHeight;\r\n                    var containerBottom = container.scrollTop + container.offsetHeight;\r\n                    if (selectBottom > containerBottom) {\r\n                        container.scrollTop += selectBottom - containerBottom;\r\n                    }\r\n                }\r\n            }\r\n        }\r\n        /**\r\n         * Select the previous item in suggestions\r\n         */\r\n        function selectPrev() {\r\n            if (items.length < 1) {\r\n                selected = undefined;\r\n            }\r\n            else {\r\n                if (selected === items[0]) {\r\n                    selected = items[items.length - 1];\r\n                }\r\n                else {\r\n                    for (var i = items.length - 1; i > 0; i--) {\r\n                        if (selected === items[i] || i === 1) {\r\n                            selected = items[i - 1];\r\n                            break;\r\n                        }\r\n                    }\r\n                }\r\n            }\r\n        }\r\n        /**\r\n         * Select the next item in suggestions\r\n         */\r\n        function selectNext() {\r\n            if (items.length < 1) {\r\n                selected = undefined;\r\n            }\r\n            if (!selected || selected === items[items.length - 1]) {\r\n                selected = items[0];\r\n                return;\r\n            }\r\n            for (var i = 0; i < (items.length - 1); i++) {\r\n                if (selected === items[i]) {\r\n                    selected = items[i + 1];\r\n                    break;\r\n                }\r\n            }\r\n        }\r\n        function keydownEventHandler(ev) {\r\n            var keyCode = ev.which || ev.keyCode || 0;\r\n            if (keyCode === 38 /* Up */ || keyCode === 40 /* Down */ || keyCode === 27 /* Esc */) {\r\n                var containerIsDisplayed = containerDisplayed();\r\n                if (keyCode === 27 /* Esc */) {\r\n                    clear();\r\n                }\r\n                else {\r\n                    if (!containerIsDisplayed || items.length < 1) {\r\n                        return;\r\n                    }\r\n                    keyCode === 38 /* Up */\r\n                        ? selectPrev()\r\n                        : selectNext();\r\n                    update();\r\n                }\r\n                ev.preventDefault();\r\n                if (containerIsDisplayed) {\r\n                    ev.stopPropagation();\r\n                }\r\n                return;\r\n            }\r\n            if (keyCode === 13 /* Enter */) {\r\n                if (selected) {\r\n                    settings.onSelect(selected, input);\r\n                    clear();\r\n                }\r\n                if (preventSubmit) {\r\n                    ev.preventDefault();\r\n                }\r\n            }\r\n        }\r\n        function focusEventHandler() {\r\n            if (showOnFocus) {\r\n                startFetch(1 /* Focus */);\r\n            }\r\n        }\r\n        function startFetch(trigger) {\r\n            // If multiple keys were pressed, before we get an update from server,\r\n            // this may cause redrawing autocomplete multiple times after the last key was pressed.\r\n            // To avoid this, the number of times keyboard was pressed will be saved and checked before redraw.\r\n            var savedKeypressCounter = ++keypressCounter;\r\n            var inputText = input.value;\r\n            var cursorPos = input.selectionStart || 0;\r\n            if (inputText.length >= minLen || trigger === 1 /* Focus */) {\r\n                clearDebounceTimer();\r\n                debounceTimer = window.setTimeout(function () {\r\n                    settings.fetch(inputText, function (elements) {\r\n                        if (keypressCounter === savedKeypressCounter && elements) {\r\n                            items = elements;\r\n                            inputValue = inputText;\r\n                            selected = (items.length < 1 || disableAutoSelect) ? undefined : items[0];\r\n                            update();\r\n                        }\r\n                    }, trigger, cursorPos);\r\n                }, trigger === 0 /* Keyboard */ ? debounceWaitMs : 0);\r\n            }\r\n            else {\r\n                clear();\r\n            }\r\n        }\r\n        function blurEventHandler() {\r\n            // we need to delay clear, because when we click on an item, blur will be called before click and remove items from DOM\r\n            setTimeout(function () {\r\n                if (doc.activeElement !== input) {\r\n                    clear();\r\n                }\r\n            }, 200);\r\n        }\r\n        /**\r\n         * Fixes #26: on long clicks focus will be lost and onSelect method will not be called\r\n         */\r\n        container.addEventListener(\"mousedown\", function (evt) {\r\n            evt.stopPropagation();\r\n            evt.preventDefault();\r\n        });\r\n        /**\r\n         * Fixes #30: autocomplete closes when scrollbar is clicked in IE\r\n         * See: https://stackoverflow.com/a/9210267/13172349\r\n         */\r\n        container.addEventListener(\"focus\", function () { return input.focus(); });\r\n        /**\r\n         * This function will remove DOM elements and clear event handlers\r\n         */\r\n        function destroy() {\r\n            input.removeEventListener(\"focus\", focusEventHandler);\r\n            input.removeEventListener(\"keydown\", keydownEventHandler);\r\n            input.removeEventListener(\"keyup\", keyupEventHandler);\r\n            input.removeEventListener(\"blur\", blurEventHandler);\r\n            window.removeEventListener(\"resize\", resizeEventHandler);\r\n            doc.removeEventListener(\"scroll\", scrollEventHandler, true);\r\n            input.removeAttribute(\"role\");\r\n            input.removeAttribute(\"aria-expanded\");\r\n            input.removeAttribute(\"aria-autocomplete\");\r\n            input.removeAttribute(\"aria-controls\");\r\n            input.removeAttribute(\"aria-activedescendant\");\r\n            input.removeAttribute(\"aria-owns\");\r\n            input.removeAttribute(\"aria-haspopup\");\r\n            clearDebounceTimer();\r\n            clear();\r\n        }\r\n        // setup event handlers\r\n        input.addEventListener(\"keydown\", keydownEventHandler);\r\n        input.addEventListener(\"keyup\", keyupEventHandler);\r\n        input.addEventListener(\"blur\", blurEventHandler);\r\n        input.addEventListener(\"focus\", focusEventHandler);\r\n        window.addEventListener(\"resize\", resizeEventHandler);\r\n        doc.addEventListener(\"scroll\", scrollEventHandler, true);\r\n        return {\r\n            destroy: destroy\r\n        };\r\n    }\n\n    return autocomplete;\n\n})));\n//# sourceMappingURL=autocomplete.js.map\n"],"names":["module","exports","autocomplete","settings","doc","document","container","createElement","id","uid","selected","debounceTimer","containerStyle","style","debounceWaitMs","preventSubmit","disableAutoSelect","items","inputValue","minLen","showOnFocus","keypressCounter","undefined","minLength","input","Error","Date","now","toString","Math","random","substring","detach","parent","parentNode","removeChild","clearDebounceTimer","window","clearTimeout","attach","body","appendChild","containerDisplayed","clear","setAttribute","updatePosition","height","width","offsetWidth","inputRect","maxHeight","calc","customize","docEl","documentElement","clientTop","clientLeft","scrollTop","pageYOffset","scrollLeft","pageXOffset","top","getBoundingClientRect","offsetHeight","left","innerHeight","bottom","update","firstChild","render","item","_","__","itemElement","textContent","label","renderGroup","groupName","groupDiv","fragment","createDocumentFragment","prevGroup","forEach","index","group","className","div","addEventListener","ev","onSelect","preventDefault","stopPropagation","length","emptyMsg","empty","updateScroll","updateIfDisplayed","resizeEventHandler","scrollEventHandler","e","target","keyupEventHandler","keyCode","which","_i","ignore_1","keysToIgnore","startFetch","elements","getElementsByClassName","element","previous","previousElementSibling","indexOf","offsetTop","selectBottom","containerBottom","selectPrev","i","selectNext","keydownEventHandler","containerIsDisplayed","focusEventHandler","trigger","savedKeypressCounter","inputText","value","cursorPos","selectionStart","setTimeout","fetch","blurEventHandler","activeElement","destroy","removeEventListener","removeAttribute","position","evt","focus","factory"],"sourceRoot":""}