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* @module ol/array\n */\n/**\n * Performs a binary search on the provided sorted list and returns the index of the item if found. If it can't be found it'll return -1.\n * https://github.com/darkskyapp/binary-search\n *\n * @param {Array<*>} haystack Items to search through.\n * @param {*} needle The item to look for.\n * @param {Function} [opt_comparator] Comparator function.\n * @return {number} The index of the item if found, -1 if not.\n */\nexport function binarySearch(haystack, needle, opt_comparator) {\n    var mid, cmp;\n    var comparator = opt_comparator || numberSafeCompareFunction;\n    var low = 0;\n    var high = haystack.length;\n    var found = false;\n    while (low < high) {\n        /* Note that \"(low + high) >>> 1\" may overflow, and results in a typecast\n         * to double (which gives the wrong results). */\n        mid = low + ((high - low) >> 1);\n        cmp = +comparator(haystack[mid], needle);\n        if (cmp < 0.0) {\n            /* Too low. */\n            low = mid + 1;\n        }\n        else {\n            /* Key found or too high */\n            high = mid;\n            found = !cmp;\n        }\n    }\n    /* Key not found. */\n    return found ? low : ~low;\n}\n/**\n * Compare function for array sort that is safe for numbers.\n * @param {*} a The first object to be compared.\n * @param {*} b The second object to be compared.\n * @return {number} A negative number, zero, or a positive number as the first\n *     argument is less than, equal to, or greater than the second.\n */\nexport function numberSafeCompareFunction(a, b) {\n    return a > b ? 1 : a < b ? -1 : 0;\n}\n/**\n * Whether the array contains the given object.\n * @param {Array<*>} arr The array to test for the presence of the element.\n * @param {*} obj The object for which to test.\n * @return {boolean} The object is in the array.\n */\nexport function includes(arr, obj) {\n    return arr.indexOf(obj) >= 0;\n}\n/**\n * {@link module:ol/tilegrid/TileGrid~TileGrid#getZForResolution} can use a function\n * of this type to determine which nearest resolution to use.\n *\n * This function takes a `{number}` representing a value between two array entries,\n * a `{number}` representing the value of the nearest higher entry and\n * a `{number}` representing the value of the nearest lower entry\n * as arguments and returns a `{number}`. If a negative number or zero is returned\n * the lower value will be used, if a positive number is returned the higher value\n * will be used.\n * @typedef {function(number, number, number): number} NearestDirectionFunction\n * @api\n */\n/**\n * @param {Array<number>} arr Array in descending order.\n * @param {number} target Target.\n * @param {number|NearestDirectionFunction} direction\n *    0 means return the nearest,\n *    > 0 means return the largest nearest,\n *    < 0 means return the smallest nearest.\n * @return {number} Index.\n */\nexport function linearFindNearest(arr, target, direction) {\n    var n = arr.length;\n    if (arr[0] <= target) {\n        return 0;\n    }\n    else if (target <= arr[n - 1]) {\n        return n - 1;\n    }\n    else {\n        var i = void 0;\n        if (direction > 0) {\n            for (i = 1; i < n; ++i) {\n                if (arr[i] < target) {\n                    return i - 1;\n                }\n            }\n        }\n        else if (direction < 0) {\n            for (i = 1; i < n; ++i) {\n                if (arr[i] <= target) {\n                    return i;\n                }\n            }\n        }\n        else {\n            for (i = 1; i < n; ++i) {\n                if (arr[i] == target) {\n                    return i;\n                }\n                else if (arr[i] < target) {\n                    if (typeof direction === 'function') {\n                        if (direction(target, arr[i - 1], arr[i]) > 0) {\n                            return i - 1;\n                        }\n                        else {\n                            return i;\n                        }\n                    }\n                    else if (arr[i - 1] - target < target - arr[i]) {\n                        return i - 1;\n                    }\n                    else {\n                        return i;\n                    }\n                }\n            }\n        }\n        return n - 1;\n    }\n}\n/**\n * @param {Array<*>} arr Array.\n * @param {number} begin Begin index.\n * @param {number} end End index.\n */\nexport function reverseSubArray(arr, begin, end) {\n    while (begin < end) {\n        var tmp = arr[begin];\n        arr[begin] = arr[end];\n        arr[end] = tmp;\n        ++begin;\n        --end;\n    }\n}\n/**\n * @param {Array<VALUE>} arr The array to modify.\n * @param {!Array<VALUE>|VALUE} data The elements or arrays of elements to add to arr.\n * @template VALUE\n */\nexport function extend(arr, data) {\n    var extension = Array.isArray(data) ? data : [data];\n    var length = extension.length;\n    for (var i = 0; i < length; i++) {\n        arr[arr.length] = extension[i];\n    }\n}\n/**\n * @param {Array<VALUE>} arr The array to modify.\n * @param {VALUE} obj The element to remove.\n * @template VALUE\n * @return {boolean} If the element was removed.\n */\nexport function remove(arr, obj) {\n    var i = arr.indexOf(obj);\n    var found = i > -1;\n    if (found) {\n        arr.splice(i, 1);\n    }\n    return found;\n}\n/**\n * @param {Array<VALUE>} arr The array to search in.\n * @param {function(VALUE, number, ?) : boolean} func The function to compare.\n * @template VALUE\n * @return {VALUE|null} The element found or null.\n */\nexport function find(arr, func) {\n    var length = arr.length >>> 0;\n    var value;\n    for (var i = 0; i < length; i++) {\n        value = arr[i];\n        if (func(value, i, arr)) {\n            return value;\n        }\n    }\n    return null;\n}\n/**\n * @param {Array|Uint8ClampedArray} arr1 The first array to compare.\n * @param {Array|Uint8ClampedArray} arr2 The second array to compare.\n * @return {boolean} Whether the two arrays are equal.\n */\nexport function equals(arr1, arr2) {\n    var len1 = arr1.length;\n    if (len1 !== arr2.length) {\n        return false;\n    }\n    for (var i = 0; i < len1; i++) {\n        if (arr1[i] !== arr2[i]) {\n            return false;\n        }\n    }\n    return true;\n}\n/**\n * Sort the passed array such that the relative order of equal elements is preserved.\n * See https://en.wikipedia.org/wiki/Sorting_algorithm#Stability for details.\n * @param {Array<*>} arr The array to sort (modifies original).\n * @param {!function(*, *): number} compareFnc Comparison function.\n * @api\n */\nexport function stableSort(arr, compareFnc) {\n    var length = arr.length;\n    var tmp = Array(arr.length);\n    var i;\n    for (i = 0; i < length; i++) {\n        tmp[i] = { index: i, value: arr[i] };\n    }\n    tmp.sort(function (a, b) {\n        return compareFnc(a.value, b.value) || a.index - b.index;\n    });\n    for (i = 0; i < arr.length; i++) {\n        arr[i] = tmp[i].value;\n    }\n}\n/**\n * @param {Array<*>} arr The array to search in.\n * @param {Function} func Comparison function.\n * @return {number} Return index.\n */\nexport function findIndex(arr, func) {\n    var index;\n    var found = !arr.every(function (el, idx) {\n        index = idx;\n        return !func(el, idx, arr);\n    });\n    return found ? index : -1;\n}\n/**\n * @param {Array<*>} arr The array to test.\n * @param {Function} [opt_func] Comparison function.\n * @param {boolean} [opt_strict] Strictly sorted (default false).\n * @return {boolean} Return index.\n */\nexport function isSorted(arr, opt_func, opt_strict) {\n    var compare = opt_func || numberSafeCompareFunction;\n    return arr.every(function (currentVal, index) {\n        if (index === 0) {\n            return true;\n        }\n        var res = compare(arr[index - 1], currentVal);\n        return !(res > 0 || (opt_strict && res === 0));\n    });\n}\n//# sourceMappingURL=array.js.map","/**\n * @module ol/asserts\n */\nimport AssertionError from './AssertionError.js';\n/**\n * @param {*} assertion Assertion we expected to be truthy.\n * @param {number} errorCode Error code.\n */\nexport function assert(assertion, errorCode) {\n    if (!assertion) {\n        throw new AssertionError(errorCode);\n    }\n}\n//# sourceMappingURL=asserts.js.map","/**\n * @module ol/centerconstraint\n */\nimport { clamp } from './math.js';\n/**\n * @typedef {function((import(\"./coordinate.js\").Coordinate|undefined), number, import(\"./size.js\").Size, boolean=, Array<number>=): (import(\"./coordinate.js\").Coordinate|undefined)} Type\n */\n/**\n * @param {import(\"./extent.js\").Extent} extent Extent.\n * @param {boolean} onlyCenter If true, the constraint will only apply to the view center.\n * @param {boolean} smooth If true, the view will be able to go slightly out of the given extent\n * (only during interaction and animation).\n * @return {Type} The constraint.\n */\nexport function createExtent(extent, onlyCenter, smooth) {\n    return (\n    /**\n     * @param {import(\"./coordinate.js\").Coordinate|undefined} center Center.\n     * @param {number|undefined} resolution Resolution.\n     * @param {import(\"./size.js\").Size} size Viewport size; unused if `onlyCenter` was specified.\n     * @param {boolean} [opt_isMoving] True if an interaction or animation is in progress.\n     * @param {Array<number>} [opt_centerShift] Shift between map center and viewport center.\n     * @return {import(\"./coordinate.js\").Coordinate|undefined} Center.\n     */\n    function (center, resolution, size, opt_isMoving, opt_centerShift) {\n        if (!center) {\n            return undefined;\n        }\n        if (!resolution && !onlyCenter) {\n            return center;\n        }\n        var viewWidth = onlyCenter ? 0 : size[0] * resolution;\n        var viewHeight = onlyCenter ? 0 : size[1] * resolution;\n        var shiftX = opt_centerShift ? opt_centerShift[0] : 0;\n        var shiftY = opt_centerShift ? opt_centerShift[1] : 0;\n        var minX = extent[0] + viewWidth / 2 + shiftX;\n        var maxX = extent[2] - viewWidth / 2 + shiftX;\n        var minY = extent[1] + viewHeight / 2 + shiftY;\n        var maxY = extent[3] - viewHeight / 2 + shiftY;\n        // note: when zooming out of bounds, min and max values for x and y may\n        // end up inverted (min > max); this has to be accounted for\n        if (minX > maxX) {\n            minX = (maxX + minX) / 2;\n            maxX = minX;\n        }\n        if (minY > maxY) {\n            minY = (maxY + minY) / 2;\n            maxY = minY;\n        }\n        var x = clamp(center[0], minX, maxX);\n        var y = clamp(center[1], minY, maxY);\n        // during an interaction, allow some overscroll\n        if (opt_isMoving && smooth && resolution) {\n            var ratio = 30 * resolution;\n            x +=\n                -ratio * Math.log(1 + Math.max(0, minX - center[0]) / ratio) +\n                    ratio * Math.log(1 + Math.max(0, center[0] - maxX) / ratio);\n            y +=\n                -ratio * Math.log(1 + Math.max(0, minY - center[1]) / ratio) +\n                    ratio * Math.log(1 + Math.max(0, center[1] - maxY) / ratio);\n        }\n        return [x, y];\n    });\n}\n/**\n * @param {import(\"./coordinate.js\").Coordinate} [center] Center.\n * @return {import(\"./coordinate.js\").Coordinate|undefined} Center.\n */\nexport function none(center) {\n    return center;\n}\n//# sourceMappingURL=centerconstraint.js.map","/**\n * @module ol/color\n */\nimport { assert } from './asserts.js';\nimport { clamp } from './math.js';\n/**\n * A color represented as a short array [red, green, blue, alpha].\n * red, green, and blue should be integers in the range 0..255 inclusive.\n * alpha should be a float in the range 0..1 inclusive. If no alpha value is\n * given then `1` will be used.\n * @typedef {Array<number>} Color\n * @api\n */\n/**\n * This RegExp matches # followed by 3, 4, 6, or 8 hex digits.\n * @const\n * @type {RegExp}\n * @private\n */\nvar HEX_COLOR_RE_ = /^#([a-f0-9]{3}|[a-f0-9]{4}(?:[a-f0-9]{2}){0,2})$/i;\n/**\n * Regular expression for matching potential named color style strings.\n * @const\n * @type {RegExp}\n * @private\n */\nvar NAMED_COLOR_RE_ = /^([a-z]*)$|^hsla?\\(.*\\)$/i;\n/**\n * Return the color as an rgba string.\n * @param {Color|string} color Color.\n * @return {string} Rgba string.\n * @api\n */\nexport function asString(color) {\n    if (typeof color === 'string') {\n        return color;\n    }\n    else {\n        return toString(color);\n    }\n}\n/**\n * Return named color as an rgba string.\n * @param {string} color Named color.\n * @return {string} Rgb string.\n */\nfunction fromNamed(color) {\n    var el = document.createElement('div');\n    el.style.color = color;\n    if (el.style.color !== '') {\n        document.body.appendChild(el);\n        var rgb = getComputedStyle(el).color;\n        document.body.removeChild(el);\n        return rgb;\n    }\n    else {\n        return '';\n    }\n}\n/**\n * @param {string} s String.\n * @return {Color} Color.\n */\nexport var fromString = (function () {\n    // We maintain a small cache of parsed strings.  To provide cheap LRU-like\n    // semantics, whenever the cache grows too large we simply delete an\n    // arbitrary 25% of the entries.\n    /**\n     * @const\n     * @type {number}\n     */\n    var MAX_CACHE_SIZE = 1024;\n    /**\n     * @type {Object<string, Color>}\n     */\n    var cache = {};\n    /**\n     * @type {number}\n     */\n    var cacheSize = 0;\n    return (\n    /**\n     * @param {string} s String.\n     * @return {Color} Color.\n     */\n    function (s) {\n        var color;\n        if (cache.hasOwnProperty(s)) {\n            color = cache[s];\n        }\n        else {\n            if (cacheSize >= MAX_CACHE_SIZE) {\n                var i = 0;\n                for (var key in cache) {\n                    if ((i++ & 3) === 0) {\n                        delete cache[key];\n                        --cacheSize;\n                    }\n                }\n            }\n            color = fromStringInternal_(s);\n            cache[s] = color;\n            ++cacheSize;\n        }\n        return color;\n    });\n})();\n/**\n * Return the color as an array. This function maintains a cache of calculated\n * arrays which means the result should not be modified.\n * @param {Color|string} color Color.\n * @return {Color} Color.\n * @api\n */\nexport function asArray(color) {\n    if (Array.isArray(color)) {\n        return color;\n    }\n    else {\n        return fromString(color);\n    }\n}\n/**\n * @param {string} s String.\n * @private\n * @return {Color} Color.\n */\nfunction fromStringInternal_(s) {\n    var r, g, b, a, color;\n    if (NAMED_COLOR_RE_.exec(s)) {\n        s = fromNamed(s);\n    }\n    if (HEX_COLOR_RE_.exec(s)) {\n        // hex\n        var n = s.length - 1; // number of hex digits\n        var d = // number of digits per channel\n         void 0; // number of digits per channel\n        if (n <= 4) {\n            d = 1;\n        }\n        else {\n            d = 2;\n        }\n        var hasAlpha = n === 4 || n === 8;\n        r = parseInt(s.substr(1 + 0 * d, d), 16);\n        g = parseInt(s.substr(1 + 1 * d, d), 16);\n        b = parseInt(s.substr(1 + 2 * d, d), 16);\n        if (hasAlpha) {\n            a = parseInt(s.substr(1 + 3 * d, d), 16);\n        }\n        else {\n            a = 255;\n        }\n        if (d == 1) {\n            r = (r << 4) + r;\n            g = (g << 4) + g;\n            b = (b << 4) + b;\n            if (hasAlpha) {\n                a = (a << 4) + a;\n            }\n        }\n        color = [r, g, b, a / 255];\n    }\n    else if (s.indexOf('rgba(') == 0) {\n        // rgba()\n        color = s.slice(5, -1).split(',').map(Number);\n        normalize(color);\n    }\n    else if (s.indexOf('rgb(') == 0) {\n        // rgb()\n        color = s.slice(4, -1).split(',').map(Number);\n        color.push(1);\n        normalize(color);\n    }\n    else {\n        assert(false, 14); // Invalid color\n    }\n    return color;\n}\n/**\n * TODO this function is only used in the test, we probably shouldn't export it\n * @param {Color} color Color.\n * @return {Color} Clamped color.\n */\nexport function normalize(color) {\n    color[0] = clamp((color[0] + 0.5) | 0, 0, 255);\n    color[1] = clamp((color[1] + 0.5) | 0, 0, 255);\n    color[2] = clamp((color[2] + 0.5) | 0, 0, 255);\n    color[3] = clamp(color[3], 0, 1);\n    return color;\n}\n/**\n * @param {Color} color Color.\n * @return {string} String.\n */\nexport function toString(color) {\n    var r = color[0];\n    if (r != (r | 0)) {\n        r = (r + 0.5) | 0;\n    }\n    var g = color[1];\n    if (g != (g | 0)) {\n        g = (g + 0.5) | 0;\n    }\n    var b = color[2];\n    if (b != (b | 0)) {\n        b = (b + 0.5) | 0;\n    }\n    var a = color[3] === undefined ? 1 : Math.round(color[3] * 100) / 100;\n    return 'rgba(' + r + ',' + g + ',' + b + ',' + a + ')';\n}\n/**\n * @param {string} s String.\n * @return {boolean} Whether the string is actually a valid color\n */\nexport function isStringColor(s) {\n    if (NAMED_COLOR_RE_.test(s)) {\n        s = fromNamed(s);\n    }\n    return (HEX_COLOR_RE_.test(s) || s.indexOf('rgba(') === 0 || s.indexOf('rgb(') === 0);\n}\n//# sourceMappingURL=color.js.map","/**\n * @module ol/colorlike\n */\nimport { toString } from './color.js';\n/**\n * A type accepted by CanvasRenderingContext2D.fillStyle\n * or CanvasRenderingContext2D.strokeStyle.\n * Represents a color, pattern, or gradient. The origin for patterns and\n * gradients as fill style is an increment of 512 css pixels from map coordinate\n * `[0, 0]`. For seamless repeat patterns, width and height of the pattern image\n * must be a factor of two (2, 4, 8, ..., 512).\n *\n * @typedef {string|CanvasPattern|CanvasGradient} ColorLike\n * @api\n */\n/**\n * @param {import(\"./color.js\").Color|ColorLike} color Color.\n * @return {ColorLike} The color as an {@link ol/colorlike~ColorLike}.\n * @api\n */\nexport function asColorLike(color) {\n    if (Array.isArray(color)) {\n        return toString(color);\n    }\n    else {\n        return color;\n    }\n}\n//# sourceMappingURL=colorlike.js.map","/**\n * @module ol/control\n */\nimport Attribution from './control/Attribution.js';\nimport Collection from './Collection.js';\nimport Rotate from './control/Rotate.js';\nimport Zoom from './control/Zoom.js';\nexport { default as Attribution } from './control/Attribution.js';\nexport { default as Control } from './control/Control.js';\nexport { default as FullScreen } from './control/FullScreen.js';\nexport { default as MousePosition } from './control/MousePosition.js';\nexport { default as OverviewMap } from './control/OverviewMap.js';\nexport { default as Rotate } from './control/Rotate.js';\nexport { default as ScaleLine } from './control/ScaleLine.js';\nexport { default as Zoom } from './control/Zoom.js';\nexport { default as ZoomSlider } from './control/ZoomSlider.js';\nexport { default as ZoomToExtent } from './control/ZoomToExtent.js';\n/**\n * @typedef {Object} DefaultsOptions\n * @property {boolean} [attribution=true] Include\n * {@link module:ol/control/Attribution~Attribution}.\n * @property {import(\"./control/Attribution.js\").Options} [attributionOptions]\n * Options for {@link module:ol/control/Attribution~Attribution}.\n * @property {boolean} [rotate=true] Include\n * {@link module:ol/control/Rotate~Rotate}.\n * @property {import(\"./control/Rotate.js\").Options} [rotateOptions] Options\n * for {@link module:ol/control/Rotate~Rotate}.\n * @property {boolean} [zoom] Include {@link module:ol/control/Zoom~Zoom}.\n * @property {import(\"./control/Zoom.js\").Options} [zoomOptions] Options for\n * {@link module:ol/control/Zoom~Zoom}.\n * @api\n */\n/**\n * Set of controls included in maps by default. Unless configured otherwise,\n * this returns a collection containing an instance of each of the following\n * controls:\n * * {@link module:ol/control/Zoom~Zoom}\n * * {@link module:ol/control/Rotate~Rotate}\n * * {@link module:ol/control/Attribution~Attribution}\n *\n * @param {DefaultsOptions} [opt_options]\n * Defaults options.\n * @return {Collection<import(\"./control/Control.js\").default>}\n * Controls.\n * @api\n */\nexport function defaults(opt_options) {\n    var options = opt_options ? opt_options : {};\n    var controls = new Collection();\n    var zoomControl = options.zoom !== undefined ? options.zoom : true;\n    if (zoomControl) {\n        controls.push(new Zoom(options.zoomOptions));\n    }\n    var rotateControl = options.rotate !== undefined ? options.rotate : true;\n    if (rotateControl) {\n        controls.push(new Rotate(options.rotateOptions));\n    }\n    var attributionControl = options.attribution !== undefined ? options.attribution : true;\n    if (attributionControl) {\n        controls.push(new Attribution(options.attributionOptions));\n    }\n    return controls;\n}\n//# sourceMappingURL=control.js.map","var __extends = (this && this.__extends) || (function () {\n    var extendStatics = function (d, b) {\n        extendStatics = Object.setPrototypeOf ||\n            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\n            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };\n        return extendStatics(d, b);\n    };\n    return function (d, b) {\n        if (typeof b !== \"function\" && b !== null)\n            throw new TypeError(\"Class extends value \" + String(b) + \" is not a constructor or null\");\n        extendStatics(d, b);\n        function __() { this.constructor = d; }\n        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n    };\n})();\n/**\n * @module ol/control/Attribution\n */\nimport Control from './Control.js';\nimport EventType from '../events/EventType.js';\nimport { CLASS_COLLAPSED, CLASS_CONTROL, CLASS_UNSELECTABLE } from '../css.js';\nimport { equals } from '../array.js';\nimport { inView } from '../layer/Layer.js';\nimport { removeChildren, replaceNode } from '../dom.js';\n/**\n * @typedef {Object} Options\n * @property {string} [className='ol-attribution'] CSS class name.\n * @property {HTMLElement|string} [target] Specify a target if you\n * want the control to be rendered outside of the map's\n * viewport.\n * @property {boolean} [collapsible] Specify if attributions can\n * be collapsed. If not specified, sources control this behavior with their\n * `attributionsCollapsible` setting.\n * @property {boolean} [collapsed=true] Specify if attributions should\n * be collapsed at startup.\n * @property {string} [tipLabel='Attributions'] Text label to use for the button tip.\n * @property {string|HTMLElement} [label='i'] Text label to use for the\n * collapsed attributions button.\n * Instead of text, also an element (e.g. a `span` element) can be used.\n * @property {string} [expandClassName=className + '-expand'] CSS class name for the\n * collapsed attributions button.\n * @property {string|HTMLElement} [collapseLabel='›'] Text label to use\n * for the expanded attributions button.\n * Instead of text, also an element (e.g. a `span` element) can be used.\n * @property {string} [collapseClassName=className + '-collapse'] CSS class name for the\n * expanded attributions button.\n * @property {function(import(\"../MapEvent.js\").default):void} [render] Function called when\n * the control should be re-rendered. This is called in a `requestAnimationFrame`\n * callback.\n */\n/**\n * @classdesc\n * Control to show all the attributions associated with the layer sources\n * in the map. This control is one of the default controls included in maps.\n * By default it will show in the bottom right portion of the map, but this can\n * be changed by using a css selector for `.ol-attribution`.\n *\n * @api\n */\nvar Attribution = /** @class */ (function (_super) {\n    __extends(Attribution, _super);\n    /**\n     * @param {Options} [opt_options] Attribution options.\n     */\n    function Attribution(opt_options) {\n        var _this = this;\n        var options = opt_options ? opt_options : {};\n        _this = _super.call(this, {\n            element: document.createElement('div'),\n            render: options.render,\n            target: options.target,\n        }) || this;\n        /**\n         * @private\n         * @type {HTMLElement}\n         */\n        _this.ulElement_ = document.createElement('ul');\n        /**\n         * @private\n         * @type {boolean}\n         */\n        _this.collapsed_ =\n            options.collapsed !== undefined ? options.collapsed : true;\n        /**\n         * @private\n         * @type {boolean}\n         */\n        _this.userCollapsed_ = _this.collapsed_;\n        /**\n         * @private\n         * @type {boolean}\n         */\n        _this.overrideCollapsible_ = options.collapsible !== undefined;\n        /**\n         * @private\n         * @type {boolean}\n         */\n        _this.collapsible_ =\n            options.collapsible !== undefined ? options.collapsible : true;\n        if (!_this.collapsible_) {\n            _this.collapsed_ = false;\n        }\n        var className = options.className !== undefined ? options.className : 'ol-attribution';\n        var tipLabel = options.tipLabel !== undefined ? options.tipLabel : 'Attributions';\n        var expandClassName = options.expandClassName !== undefined\n            ? options.expandClassName\n            : className + '-expand';\n        var collapseLabel = options.collapseLabel !== undefined ? options.collapseLabel : '\\u203A';\n        var collapseClassName = options.collapseClassName !== undefined\n            ? options.collapseClassName\n            : className + '-collapse';\n        if (typeof collapseLabel === 'string') {\n            /**\n             * @private\n             * @type {HTMLElement}\n             */\n            _this.collapseLabel_ = document.createElement('span');\n            _this.collapseLabel_.textContent = collapseLabel;\n            _this.collapseLabel_.className = collapseClassName;\n        }\n        else {\n            _this.collapseLabel_ = collapseLabel;\n        }\n        var label = options.label !== undefined ? options.label : 'i';\n        if (typeof label === 'string') {\n            /**\n             * @private\n             * @type {HTMLElement}\n             */\n            _this.label_ = document.createElement('span');\n            _this.label_.textContent = label;\n            _this.label_.className = expandClassName;\n        }\n        else {\n            _this.label_ = label;\n        }\n        var activeLabel = _this.collapsible_ && !_this.collapsed_ ? _this.collapseLabel_ : _this.label_;\n        /**\n         * @private\n         * @type {HTMLElement}\n         */\n        _this.toggleButton_ = document.createElement('button');\n        _this.toggleButton_.setAttribute('type', 'button');\n        _this.toggleButton_.setAttribute('aria-expanded', String(!_this.collapsed_));\n        _this.toggleButton_.title = tipLabel;\n        _this.toggleButton_.appendChild(activeLabel);\n        _this.toggleButton_.addEventListener(EventType.CLICK, _this.handleClick_.bind(_this), false);\n        var cssClasses = className +\n            ' ' +\n            CLASS_UNSELECTABLE +\n            ' ' +\n            CLASS_CONTROL +\n            (_this.collapsed_ && _this.collapsible_ ? ' ' + CLASS_COLLAPSED : '') +\n            (_this.collapsible_ ? '' : ' ol-uncollapsible');\n        var element = _this.element;\n        element.className = cssClasses;\n        element.appendChild(_this.toggleButton_);\n        element.appendChild(_this.ulElement_);\n        /**\n         * A list of currently rendered resolutions.\n         * @type {Array<string>}\n         * @private\n         */\n        _this.renderedAttributions_ = [];\n        /**\n         * @private\n         * @type {boolean}\n         */\n        _this.renderedVisible_ = true;\n        return _this;\n    }\n    /**\n     * Collect a list of visible attributions and set the collapsible state.\n     * @param {import(\"../PluggableMap.js\").FrameState} frameState Frame state.\n     * @return {Array<string>} Attributions.\n     * @private\n     */\n    Attribution.prototype.collectSourceAttributions_ = function (frameState) {\n        /**\n         * Used to determine if an attribution already exists.\n         * @type {!Object<string, boolean>}\n         */\n        var lookup = {};\n        /**\n         * A list of visible attributions.\n         * @type {Array<string>}\n         */\n        var visibleAttributions = [];\n        var collapsible = true;\n        var layerStatesArray = frameState.layerStatesArray;\n        for (var i = 0, ii = layerStatesArray.length; i < ii; ++i) {\n            var layerState = layerStatesArray[i];\n            if (!inView(layerState, frameState.viewState)) {\n                continue;\n            }\n            var source = /** @type {import(\"../layer/Layer.js\").default} */ (layerState.layer).getSource();\n            if (!source) {\n                continue;\n            }\n            var attributionGetter = source.getAttributions();\n            if (!attributionGetter) {\n                continue;\n            }\n            var attributions = attributionGetter(frameState);\n            if (!attributions) {\n                continue;\n            }\n            collapsible =\n                collapsible && source.getAttributionsCollapsible() !== false;\n            if (Array.isArray(attributions)) {\n                for (var j = 0, jj = attributions.length; j < jj; ++j) {\n                    if (!(attributions[j] in lookup)) {\n                        visibleAttributions.push(attributions[j]);\n                        lookup[attributions[j]] = true;\n                    }\n                }\n            }\n            else {\n                if (!(attributions in lookup)) {\n                    visibleAttributions.push(attributions);\n                    lookup[attributions] = true;\n                }\n            }\n        }\n        if (!this.overrideCollapsible_) {\n            this.setCollapsible(collapsible);\n        }\n        return visibleAttributions;\n    };\n    /**\n     * @private\n     * @param {?import(\"../PluggableMap.js\").FrameState} frameState Frame state.\n     */\n    Attribution.prototype.updateElement_ = function (frameState) {\n        if (!frameState) {\n            if (this.renderedVisible_) {\n                this.element.style.display = 'none';\n                this.renderedVisible_ = false;\n            }\n            return;\n        }\n        var attributions = this.collectSourceAttributions_(frameState);\n        var visible = attributions.length > 0;\n        if (this.renderedVisible_ != visible) {\n            this.element.style.display = visible ? '' : 'none';\n            this.renderedVisible_ = visible;\n        }\n        if (equals(attributions, this.renderedAttributions_)) {\n            return;\n        }\n        removeChildren(this.ulElement_);\n        // append the attributions\n        for (var i = 0, ii = attributions.length; i < ii; ++i) {\n            var element = document.createElement('li');\n            element.innerHTML = attributions[i];\n            this.ulElement_.appendChild(element);\n        }\n        this.renderedAttributions_ = attributions;\n    };\n    /**\n     * @param {MouseEvent} event The event to handle\n     * @private\n     */\n    Attribution.prototype.handleClick_ = function (event) {\n        event.preventDefault();\n        this.handleToggle_();\n        this.userCollapsed_ = this.collapsed_;\n    };\n    /**\n     * @private\n     */\n    Attribution.prototype.handleToggle_ = function () {\n        this.element.classList.toggle(CLASS_COLLAPSED);\n        if (this.collapsed_) {\n            replaceNode(this.collapseLabel_, this.label_);\n        }\n        else {\n            replaceNode(this.label_, this.collapseLabel_);\n        }\n        this.collapsed_ = !this.collapsed_;\n        this.toggleButton_.setAttribute('aria-expanded', String(!this.collapsed_));\n    };\n    /**\n     * Return `true` if the attribution is collapsible, `false` otherwise.\n     * @return {boolean} True if the widget is collapsible.\n     * @api\n     */\n    Attribution.prototype.getCollapsible = function () {\n        return this.collapsible_;\n    };\n    /**\n     * Set whether the attribution should be collapsible.\n     * @param {boolean} collapsible True if the widget is collapsible.\n     * @api\n     */\n    Attribution.prototype.setCollapsible = function (collapsible) {\n        if (this.collapsible_ === collapsible) {\n            return;\n        }\n        this.collapsible_ = collapsible;\n        this.element.classList.toggle('ol-uncollapsible');\n        if (this.userCollapsed_) {\n            this.handleToggle_();\n        }\n    };\n    /**\n     * Collapse or expand the attribution according to the passed parameter. Will\n     * not do anything if the attribution isn't collapsible or if the current\n     * collapsed state is already the one requested.\n     * @param {boolean} collapsed True if the widget is collapsed.\n     * @api\n     */\n    Attribution.prototype.setCollapsed = function (collapsed) {\n        this.userCollapsed_ = collapsed;\n        if (!this.collapsible_ || this.collapsed_ === collapsed) {\n            return;\n        }\n        this.handleToggle_();\n    };\n    /**\n     * Return `true` when the attribution is currently collapsed or `false`\n     * otherwise.\n     * @return {boolean} True if the widget is collapsed.\n     * @api\n     */\n    Attribution.prototype.getCollapsed = function () {\n        return this.collapsed_;\n    };\n    /**\n     * Update the attribution element.\n     * @param {import(\"../MapEvent.js\").default} mapEvent Map event.\n     * @override\n     */\n    Attribution.prototype.render = function (mapEvent) {\n        this.updateElement_(mapEvent.frameState);\n    };\n    return Attribution;\n}(Control));\nexport default Attribution;\n//# sourceMappingURL=Attribution.js.map","var __extends = (this && this.__extends) || (function () {\n    var extendStatics = function (d, b) {\n        extendStatics = Object.setPrototypeOf ||\n            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\n            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };\n        return extendStatics(d, b);\n    };\n    return function (d, b) {\n        if (typeof b !== \"function\" && b !== null)\n            throw new TypeError(\"Class extends value \" + String(b) + \" is not a constructor or null\");\n        extendStatics(d, b);\n        function __() { this.constructor = d; }\n        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n    };\n})();\n/**\n * @module ol/control/Control\n */\nimport BaseObject from '../Object.js';\nimport MapEventType from '../MapEventType.js';\nimport { VOID } from '../functions.js';\nimport { listen, unlistenByKey } from '../events.js';\nimport { removeNode } from '../dom.js';\n/**\n * @typedef {Object} Options\n * @property {HTMLElement} [element] The element is the control's\n * container element. This only needs to be specified if you're developing\n * a custom control.\n * @property {function(import(\"../MapEvent.js\").default):void} [render] Function called when\n * the control should be re-rendered. This is called in a `requestAnimationFrame`\n * callback.\n * @property {HTMLElement|string} [target] Specify a target if you want\n * the control to be rendered outside of the map's viewport.\n */\n/**\n * @classdesc\n * A control is a visible widget with a DOM element in a fixed position on the\n * screen. They can involve user input (buttons), or be informational only;\n * the position is determined using CSS. By default these are placed in the\n * container with CSS class name `ol-overlaycontainer-stopevent`, but can use\n * any outside DOM element.\n *\n * This is the base class for controls. You can use it for simple custom\n * controls by creating the element with listeners, creating an instance:\n * ```js\n * var myControl = new Control({element: myElement});\n * ```\n * and then adding this to the map.\n *\n * The main advantage of having this as a control rather than a simple separate\n * DOM element is that preventing propagation is handled for you. Controls\n * will also be objects in a {@link module:ol/Collection~Collection}, so you can use their methods.\n *\n * You can also extend this base for your own control class. See\n * examples/custom-controls for an example of how to do this.\n *\n * @api\n */\nvar Control = /** @class */ (function (_super) {\n    __extends(Control, _super);\n    /**\n     * @param {Options} options Control options.\n     */\n    function Control(options) {\n        var _this = _super.call(this) || this;\n        var element = options.element;\n        if (element && !options.target && !element.style.pointerEvents) {\n            element.style.pointerEvents = 'auto';\n        }\n        /**\n         * @protected\n         * @type {HTMLElement}\n         */\n        _this.element = element ? element : null;\n        /**\n         * @private\n         * @type {HTMLElement}\n         */\n        _this.target_ = null;\n        /**\n         * @private\n         * @type {import(\"../PluggableMap.js\").default|null}\n         */\n        _this.map_ = null;\n        /**\n         * @protected\n         * @type {!Array<import(\"../events.js\").EventsKey>}\n         */\n        _this.listenerKeys = [];\n        if (options.render) {\n            _this.render = options.render;\n        }\n        if (options.target) {\n            _this.setTarget(options.target);\n        }\n        return _this;\n    }\n    /**\n     * Clean up.\n     */\n    Control.prototype.disposeInternal = function () {\n        removeNode(this.element);\n        _super.prototype.disposeInternal.call(this);\n    };\n    /**\n     * Get the map associated with this control.\n     * @return {import(\"../PluggableMap.js\").default|null} Map.\n     * @api\n     */\n    Control.prototype.getMap = function () {\n        return this.map_;\n    };\n    /**\n     * Remove the control from its current map and attach it to the new map.\n     * Pass `null` to just remove the control from the current map.\n     * Subclasses may set up event handlers to get notified about changes to\n     * the map here.\n     * @param {import(\"../PluggableMap.js\").default|null} map Map.\n     * @api\n     */\n    Control.prototype.setMap = function (map) {\n        if (this.map_) {\n            removeNode(this.element);\n        }\n        for (var i = 0, ii = this.listenerKeys.length; i < ii; ++i) {\n            unlistenByKey(this.listenerKeys[i]);\n        }\n        this.listenerKeys.length = 0;\n        this.map_ = map;\n        if (map) {\n            var target = this.target_\n                ? this.target_\n                : map.getOverlayContainerStopEvent();\n            target.appendChild(this.element);\n            if (this.render !== VOID) {\n                this.listenerKeys.push(listen(map, MapEventType.POSTRENDER, this.render, this));\n            }\n            map.render();\n        }\n    };\n    /**\n     * Renders the control.\n     * @param {import(\"../MapEvent.js\").default} mapEvent Map event.\n     * @api\n     */\n    Control.prototype.render = function (mapEvent) { };\n    /**\n     * This function is used to set a target element for the control. It has no\n     * effect if it is called after the control has been added to the map (i.e.\n     * after `setMap` is called on the control). If no `target` is set in the\n     * options passed to the control constructor and if `setTarget` is not called\n     * then the control is added to the map's overlay container.\n     * @param {HTMLElement|string} target Target.\n     * @api\n     */\n    Control.prototype.setTarget = function (target) {\n        this.target_ =\n            typeof target === 'string' ? document.getElementById(target) : target;\n    };\n    return Control;\n}(BaseObject));\nexport default Control;\n//# sourceMappingURL=Control.js.map","var __extends = (this && this.__extends) || (function () {\n    var extendStatics = function (d, b) {\n        extendStatics = Object.setPrototypeOf ||\n            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\n            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };\n        return extendStatics(d, b);\n    };\n    return function (d, b) {\n        if (typeof b !== \"function\" && b !== null)\n            throw new TypeError(\"Class extends value \" + String(b) + \" is not a constructor or null\");\n        extendStatics(d, b);\n        function __() { this.constructor = d; }\n        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n    };\n})();\n/**\n * @module ol/control/FullScreen\n */\nimport Control from './Control.js';\nimport EventType from '../events/EventType.js';\nimport MapProperty from '../MapProperty.js';\nimport { CLASS_CONTROL, CLASS_UNSELECTABLE, CLASS_UNSUPPORTED } from '../css.js';\nimport { listen, unlistenByKey } from '../events.js';\nimport { replaceNode } from '../dom.js';\nvar events = [\n    'fullscreenchange',\n    'webkitfullscreenchange',\n    'MSFullscreenChange',\n];\n/**\n * @enum {string}\n */\nvar FullScreenEventType = {\n    /**\n     * Triggered after the map entered fullscreen.\n     * @event FullScreenEventType#enterfullscreen\n     * @api\n     */\n    ENTERFULLSCREEN: 'enterfullscreen',\n    /**\n     * Triggered after the map leave fullscreen.\n     * @event FullScreenEventType#leavefullscreen\n     * @api\n     */\n    LEAVEFULLSCREEN: 'leavefullscreen',\n};\n/***\n * @template Return\n * @typedef {import(\"../Observable\").OnSignature<import(\"../Observable\").EventTypes|\n *     'enterfullscreen'|'leavefullscreen', import(\"../events/Event.js\").default, Return> &\n *   import(\"../Observable\").OnSignature<import(\"../ObjectEventType\").Types, import(\"../Object\").ObjectEvent, Return> &\n *   import(\"../Observable\").CombinedOnSignature<import(\"../Observable\").EventTypes|\n *     'enterfullscreen'|'leavefullscreen'|import(\"../ObjectEventType\").Types, Return>} FullScreenOnSignature\n */\n/**\n * @typedef {Object} Options\n * @property {string} [className='ol-full-screen'] CSS class name.\n * @property {string|Text|HTMLElement} [label='\\u2922'] Text label to use for the button.\n * Instead of text, also an element (e.g. a `span` element) can be used.\n * @property {string|Text|HTMLElement} [labelActive='\\u00d7'] Text label to use for the\n * button when full-screen is active.\n * Instead of text, also an element (e.g. a `span` element) can be used.\n * @property {string} [activeClassName=className + '-true'] CSS class name for the button\n * when full-screen is active.\n * @property {string} [inactiveClassName=className + '-false'] CSS class name for the button\n * when full-screen is inactive.\n * @property {string} [tipLabel='Toggle full-screen'] Text label to use for the button tip.\n * @property {boolean} [keys=false] Full keyboard access.\n * @property {HTMLElement|string} [target] Specify a target if you want the\n * control to be rendered outside of the map's viewport.\n * @property {HTMLElement|string} [source] The element to be displayed\n * fullscreen. When not provided, the element containing the map viewport will\n * be displayed fullscreen.\n */\n/**\n * @classdesc\n * Provides a button that when clicked fills up the full screen with the map.\n * The full screen source element is by default the element containing the map viewport unless\n * overridden by providing the `source` option. In which case, the dom\n * element introduced using this parameter will be displayed in full screen.\n *\n * When in full screen mode, a close button is shown to exit full screen mode.\n * The [Fullscreen API](https://www.w3.org/TR/fullscreen/) is used to\n * toggle the map in full screen mode.\n *\n * @fires FullScreenEventType#enterfullscreen\n * @fires FullScreenEventType#leavefullscreen\n * @api\n */\nvar FullScreen = /** @class */ (function (_super) {\n    __extends(FullScreen, _super);\n    /**\n     * @param {Options} [opt_options] Options.\n     */\n    function FullScreen(opt_options) {\n        var _this = this;\n        var options = opt_options ? opt_options : {};\n        _this = _super.call(this, {\n            element: document.createElement('div'),\n            target: options.target,\n        }) || this;\n        /***\n         * @type {FullScreenOnSignature<import(\"../events\").EventsKey>}\n         */\n        _this.on;\n        /***\n         * @type {FullScreenOnSignature<import(\"../events\").EventsKey>}\n         */\n        _this.once;\n        /***\n         * @type {FullScreenOnSignature<void>}\n         */\n        _this.un;\n        /**\n         * @private\n         * @type {boolean}\n         */\n        _this.keys_ = options.keys !== undefined ? options.keys : false;\n        /**\n         * @private\n         * @type {HTMLElement|string|undefined}\n         */\n        _this.source_ = options.source;\n        /**\n         * @type {boolean}\n         * @private\n         */\n        _this.isInFullscreen_ = false;\n        /**\n         * @private\n         */\n        _this.boundHandleMapTargetChange_ = _this.handleMapTargetChange_.bind(_this);\n        /**\n         * @private\n         * @type {string}\n         */\n        _this.cssClassName_ =\n            options.className !== undefined ? options.className : 'ol-full-screen';\n        /**\n         * @private\n         * @type {Array<import(\"../events.js\").EventsKey>}\n         */\n        _this.documentListeners_ = [];\n        /**\n         * @private\n         * @type {Array<string>}\n         */\n        _this.activeClassName_ =\n            options.activeClassName !== undefined\n                ? options.activeClassName.split(' ')\n                : [_this.cssClassName_ + '-true'];\n        /**\n         * @private\n         * @type {Array<string>}\n         */\n        _this.inactiveClassName_ =\n            options.inactiveClassName !== undefined\n                ? options.inactiveClassName.split(' ')\n                : [_this.cssClassName_ + '-false'];\n        var label = options.label !== undefined ? options.label : '\\u2922';\n        /**\n         * @private\n         * @type {Text|HTMLElement}\n         */\n        _this.labelNode_ =\n            typeof label === 'string' ? document.createTextNode(label) : label;\n        var labelActive = options.labelActive !== undefined ? options.labelActive : '\\u00d7';\n        /**\n         * @private\n         * @type {Text|HTMLElement}\n         */\n        _this.labelActiveNode_ =\n            typeof labelActive === 'string'\n                ? document.createTextNode(labelActive)\n                : labelActive;\n        var tipLabel = options.tipLabel ? options.tipLabel : 'Toggle full-screen';\n        /**\n         * @private\n         * @type {HTMLElement}\n         */\n        _this.button_ = document.createElement('button');\n        _this.button_.title = tipLabel;\n        _this.button_.setAttribute('type', 'button');\n        _this.button_.appendChild(_this.labelNode_);\n        _this.button_.addEventListener(EventType.CLICK, _this.handleClick_.bind(_this), false);\n        _this.setClassName_(_this.button_, _this.isInFullscreen_);\n        _this.element.className = \"\".concat(_this.cssClassName_, \" \").concat(CLASS_UNSELECTABLE, \" \").concat(CLASS_CONTROL);\n        _this.element.appendChild(_this.button_);\n        return _this;\n    }\n    /**\n     * @param {MouseEvent} event The event to handle\n     * @private\n     */\n    FullScreen.prototype.handleClick_ = function (event) {\n        event.preventDefault();\n        this.handleFullScreen_();\n    };\n    /**\n     * @private\n     */\n    FullScreen.prototype.handleFullScreen_ = function () {\n        var map = this.getMap();\n        if (!map) {\n            return;\n        }\n        var doc = map.getOwnerDocument();\n        if (!isFullScreenSupported(doc)) {\n            return;\n        }\n        if (isFullScreen(doc)) {\n            exitFullScreen(doc);\n        }\n        else {\n            var element = void 0;\n            if (this.source_) {\n                element =\n                    typeof this.source_ === 'string'\n                        ? doc.getElementById(this.source_)\n                        : this.source_;\n            }\n            else {\n                element = map.getTargetElement();\n            }\n            if (this.keys_) {\n                requestFullScreenWithKeys(element);\n            }\n            else {\n                requestFullScreen(element);\n            }\n        }\n    };\n    /**\n     * @private\n     */\n    FullScreen.prototype.handleFullScreenChange_ = function () {\n        var map = this.getMap();\n        if (!map) {\n            return;\n        }\n        var wasInFullscreen = this.isInFullscreen_;\n        this.isInFullscreen_ = isFullScreen(map.getOwnerDocument());\n        if (wasInFullscreen !== this.isInFullscreen_) {\n            this.setClassName_(this.button_, this.isInFullscreen_);\n            if (this.isInFullscreen_) {\n                replaceNode(this.labelActiveNode_, this.labelNode_);\n                this.dispatchEvent(FullScreenEventType.ENTERFULLSCREEN);\n            }\n            else {\n                replaceNode(this.labelNode_, this.labelActiveNode_);\n                this.dispatchEvent(FullScreenEventType.LEAVEFULLSCREEN);\n            }\n            map.updateSize();\n        }\n    };\n    /**\n     * @param {HTMLElement} element Target element\n     * @param {boolean} fullscreen True if fullscreen class name should be active\n     * @private\n     */\n    FullScreen.prototype.setClassName_ = function (element, fullscreen) {\n        var _a, _b, _c, _d;\n        if (fullscreen) {\n            (_a = element.classList).remove.apply(_a, this.inactiveClassName_);\n            (_b = element.classList).add.apply(_b, this.activeClassName_);\n        }\n        else {\n            (_c = element.classList).remove.apply(_c, this.activeClassName_);\n            (_d = element.classList).add.apply(_d, this.inactiveClassName_);\n        }\n    };\n    /**\n     * Remove the control from its current map and attach it to the new map.\n     * Pass `null` to just remove the control from the current map.\n     * Subclasses may set up event handlers to get notified about changes to\n     * the map here.\n     * @param {import(\"../PluggableMap.js\").default|null} map Map.\n     * @api\n     */\n    FullScreen.prototype.setMap = function (map) {\n        var oldMap = this.getMap();\n        if (oldMap) {\n            oldMap.removeChangeListener(MapProperty.TARGET, this.boundHandleMapTargetChange_);\n        }\n        _super.prototype.setMap.call(this, map);\n        this.handleMapTargetChange_();\n        if (map) {\n            map.addChangeListener(MapProperty.TARGET, this.boundHandleMapTargetChange_);\n        }\n    };\n    /**\n     * @private\n     */\n    FullScreen.prototype.handleMapTargetChange_ = function () {\n        var listeners = this.documentListeners_;\n        for (var i = 0, ii = listeners.length; i < ii; ++i) {\n            unlistenByKey(listeners[i]);\n        }\n        listeners.length = 0;\n        var map = this.getMap();\n        if (map) {\n            var doc = map.getOwnerDocument();\n            if (isFullScreenSupported(doc)) {\n                this.element.classList.remove(CLASS_UNSUPPORTED);\n            }\n            else {\n                this.element.classList.add(CLASS_UNSUPPORTED);\n            }\n            for (var i = 0, ii = events.length; i < ii; ++i) {\n                listeners.push(listen(doc, events[i], this.handleFullScreenChange_, this));\n            }\n            this.handleFullScreenChange_();\n        }\n    };\n    return FullScreen;\n}(Control));\n/**\n * @param {Document} doc The root document to check.\n * @return {boolean} Fullscreen is supported by the current platform.\n */\nfunction isFullScreenSupported(doc) {\n    var body = doc.body;\n    return !!(body['webkitRequestFullscreen'] ||\n        (body['msRequestFullscreen'] && doc['msFullscreenEnabled']) ||\n        (body.requestFullscreen && doc.fullscreenEnabled));\n}\n/**\n * @param {Document} doc The root document to check.\n * @return {boolean} Element is currently in fullscreen.\n */\nfunction isFullScreen(doc) {\n    return !!(doc['webkitIsFullScreen'] ||\n        doc['msFullscreenElement'] ||\n        doc.fullscreenElement);\n}\n/**\n * Request to fullscreen an element.\n * @param {HTMLElement} element Element to request fullscreen\n */\nfunction requestFullScreen(element) {\n    if (element.requestFullscreen) {\n        element.requestFullscreen();\n    }\n    else if (element['msRequestFullscreen']) {\n        element['msRequestFullscreen']();\n    }\n    else if (element['webkitRequestFullscreen']) {\n        element['webkitRequestFullscreen']();\n    }\n}\n/**\n * Request to fullscreen an element with keyboard input.\n * @param {HTMLElement} element Element to request fullscreen\n */\nfunction requestFullScreenWithKeys(element) {\n    if (element['webkitRequestFullscreen']) {\n        element['webkitRequestFullscreen']();\n    }\n    else {\n        requestFullScreen(element);\n    }\n}\n/**\n * Exit fullscreen.\n * @param {Document} doc The document to exit fullscren from\n */\nfunction exitFullScreen(doc) {\n    if (doc.exitFullscreen) {\n        doc.exitFullscreen();\n    }\n    else if (doc['msExitFullscreen']) {\n        doc['msExitFullscreen']();\n    }\n    else if (doc['webkitExitFullscreen']) {\n        doc['webkitExitFullscreen']();\n    }\n}\nexport default FullScreen;\n//# sourceMappingURL=FullScreen.js.map","/**\n * @module ol/control/MousePosition\n */\nvar __extends = (this && this.__extends) || (function () {\n    var extendStatics = function (d, b) {\n        extendStatics = Object.setPrototypeOf ||\n            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\n            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };\n        return extendStatics(d, b);\n    };\n    return function (d, b) {\n        if (typeof b !== \"function\" && b !== null)\n            throw new TypeError(\"Class extends value \" + String(b) + \" is not a constructor or null\");\n        extendStatics(d, b);\n        function __() { this.constructor = d; }\n        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n    };\n})();\nimport Control from './Control.js';\nimport EventType from '../pointer/EventType.js';\nimport { get as getProjection, getTransformFromProjections, getUserProjection, identityTransform, } from '../proj.js';\nimport { listen } from '../events.js';\n/**\n * @type {string}\n */\nvar PROJECTION = 'projection';\n/**\n * @type {string}\n */\nvar COORDINATE_FORMAT = 'coordinateFormat';\n/***\n * @template Return\n * @typedef {import(\"../Observable\").OnSignature<import(\"../Observable\").EventTypes, import(\"../events/Event.js\").default, Return> &\n *   import(\"../Observable\").OnSignature<import(\"../ObjectEventType\").Types|\n *     'change:coordinateFormat'|'change:projection', import(\"../Object\").ObjectEvent, Return> &\n *   import(\"../Observable\").CombinedOnSignature<import(\"../Observable\").EventTypes|import(\"../ObjectEventType\").Types|\n *     'change:coordinateFormat'|'change:projection', Return>} MousePositionOnSignature\n */\n/**\n * @typedef {Object} Options\n * @property {string} [className='ol-mouse-position'] CSS class name.\n * @property {import(\"../coordinate.js\").CoordinateFormat} [coordinateFormat] Coordinate format.\n * @property {import(\"../proj.js\").ProjectionLike} [projection] Projection. Default is the view projection.\n * @property {function(import(\"../MapEvent.js\").default):void} [render] Function called when the\n * control should be re-rendered. This is called in a `requestAnimationFrame`\n * callback.\n * @property {HTMLElement|string} [target] Specify a target if you want the\n * control to be rendered outside of the map's viewport.\n * @property {string|boolean} [placeholder] Markup to show when the mouse position is not\n * available (e.g. when the pointer leaves the map viewport).  By default, a non-breaking space\n * is rendered when the mouse leaves the viewport.  To render something else, provide a string\n * to be used as the text content (e.g. 'no position' or '' for an empty string).  Set the placeholder\n * to `false` to retain the last position when the mouse leaves the viewport.  In a future release, this\n * will be the default behavior.\n * @property {string} [undefinedHTML='&#160;'] This option is deprecated.  Use the `placeholder` option instead.\n */\n/**\n * @classdesc\n * A control to show the 2D coordinates of the mouse cursor. By default, these\n * are in the view projection, but can be in any supported projection.\n * By default the control is shown in the top right corner of the map, but this\n * can be changed by using the css selector `.ol-mouse-position`.\n *\n * On touch devices, which usually do not have a mouse cursor, the coordinates\n * of the currently touched position are shown.\n *\n * @api\n */\nvar MousePosition = /** @class */ (function (_super) {\n    __extends(MousePosition, _super);\n    /**\n     * @param {Options} [opt_options] Mouse position options.\n     */\n    function MousePosition(opt_options) {\n        var _this = this;\n        var options = opt_options ? opt_options : {};\n        var element = document.createElement('div');\n        element.className =\n            options.className !== undefined ? options.className : 'ol-mouse-position';\n        _this = _super.call(this, {\n            element: element,\n            render: options.render,\n            target: options.target,\n        }) || this;\n        /***\n         * @type {MousePositionOnSignature<import(\"../events\").EventsKey>}\n         */\n        _this.on;\n        /***\n         * @type {MousePositionOnSignature<import(\"../events\").EventsKey>}\n         */\n        _this.once;\n        /***\n         * @type {MousePositionOnSignature<void>}\n         */\n        _this.un;\n        _this.addChangeListener(PROJECTION, _this.handleProjectionChanged_);\n        if (options.coordinateFormat) {\n            _this.setCoordinateFormat(options.coordinateFormat);\n        }\n        if (options.projection) {\n            _this.setProjection(options.projection);\n        }\n        /**\n         * Change this to `false` when removing the deprecated `undefinedHTML` option.\n         * @type {boolean}\n         */\n        var renderOnMouseOut = true;\n        /**\n         * @type {string}\n         */\n        var placeholder = '&#160;';\n        if ('undefinedHTML' in options) {\n            // deprecated behavior\n            if (options.undefinedHTML !== undefined) {\n                placeholder = options.undefinedHTML;\n            }\n            renderOnMouseOut = !!placeholder;\n        }\n        else if ('placeholder' in options) {\n            if (options.placeholder === false) {\n                renderOnMouseOut = false;\n            }\n            else {\n                placeholder = String(options.placeholder);\n            }\n        }\n        /**\n         * @private\n         * @type {string}\n         */\n        _this.placeholder_ = placeholder;\n        /**\n         * @private\n         * @type {boolean}\n         */\n        _this.renderOnMouseOut_ = renderOnMouseOut;\n        /**\n         * @private\n         * @type {string}\n         */\n        _this.renderedHTML_ = element.innerHTML;\n        /**\n         * @private\n         * @type {?import(\"../proj/Projection.js\").default}\n         */\n        _this.mapProjection_ = null;\n        /**\n         * @private\n         * @type {?import(\"../proj.js\").TransformFunction}\n         */\n        _this.transform_ = null;\n        return _this;\n    }\n    /**\n     * @private\n     */\n    MousePosition.prototype.handleProjectionChanged_ = function () {\n        this.transform_ = null;\n    };\n    /**\n     * Return the coordinate format type used to render the current position or\n     * undefined.\n     * @return {import(\"../coordinate.js\").CoordinateFormat|undefined} The format to render the current\n     *     position in.\n     * @observable\n     * @api\n     */\n    MousePosition.prototype.getCoordinateFormat = function () {\n        return /** @type {import(\"../coordinate.js\").CoordinateFormat|undefined} */ (this.get(COORDINATE_FORMAT));\n    };\n    /**\n     * Return the projection that is used to report the mouse position.\n     * @return {import(\"../proj/Projection.js\").default|undefined} The projection to report mouse\n     *     position in.\n     * @observable\n     * @api\n     */\n    MousePosition.prototype.getProjection = function () {\n        return /** @type {import(\"../proj/Projection.js\").default|undefined} */ (this.get(PROJECTION));\n    };\n    /**\n     * @param {MouseEvent} event Browser event.\n     * @protected\n     */\n    MousePosition.prototype.handleMouseMove = function (event) {\n        var map = this.getMap();\n        this.updateHTML_(map.getEventPixel(event));\n    };\n    /**\n     * @param {Event} event Browser event.\n     * @protected\n     */\n    MousePosition.prototype.handleMouseOut = function (event) {\n        this.updateHTML_(null);\n    };\n    /**\n     * Remove the control from its current map and attach it to the new map.\n     * Pass `null` to just remove the control from the current map.\n     * Subclasses may set up event handlers to get notified about changes to\n     * the map here.\n     * @param {import(\"../PluggableMap.js\").default|null} map Map.\n     * @api\n     */\n    MousePosition.prototype.setMap = function (map) {\n        _super.prototype.setMap.call(this, map);\n        if (map) {\n            var viewport = map.getViewport();\n            this.listenerKeys.push(listen(viewport, EventType.POINTERMOVE, this.handleMouseMove, this));\n            if (this.renderOnMouseOut_) {\n                this.listenerKeys.push(listen(viewport, EventType.POINTEROUT, this.handleMouseOut, this));\n            }\n            this.updateHTML_(null);\n        }\n    };\n    /**\n     * Set the coordinate format type used to render the current position.\n     * @param {import(\"../coordinate.js\").CoordinateFormat} format The format to render the current\n     *     position in.\n     * @observable\n     * @api\n     */\n    MousePosition.prototype.setCoordinateFormat = function (format) {\n        this.set(COORDINATE_FORMAT, format);\n    };\n    /**\n     * Set the projection that is used to report the mouse position.\n     * @param {import(\"../proj.js\").ProjectionLike} projection The projection to report mouse\n     *     position in.\n     * @observable\n     * @api\n     */\n    MousePosition.prototype.setProjection = function (projection) {\n        this.set(PROJECTION, getProjection(projection));\n    };\n    /**\n     * @param {?import(\"../pixel.js\").Pixel} pixel Pixel.\n     * @private\n     */\n    MousePosition.prototype.updateHTML_ = function (pixel) {\n        var html = this.placeholder_;\n        if (pixel && this.mapProjection_) {\n            if (!this.transform_) {\n                var projection = this.getProjection();\n                if (projection) {\n                    this.transform_ = getTransformFromProjections(this.mapProjection_, projection);\n                }\n                else {\n                    this.transform_ = identityTransform;\n                }\n            }\n            var map = this.getMap();\n            var coordinate = map.getCoordinateFromPixelInternal(pixel);\n            if (coordinate) {\n                var userProjection = getUserProjection();\n                if (userProjection) {\n                    this.transform_ = getTransformFromProjections(this.mapProjection_, userProjection);\n                }\n                this.transform_(coordinate, coordinate);\n                var coordinateFormat = this.getCoordinateFormat();\n                if (coordinateFormat) {\n                    html = coordinateFormat(coordinate);\n                }\n                else {\n                    html = coordinate.toString();\n                }\n            }\n        }\n        if (!this.renderedHTML_ || html !== this.renderedHTML_) {\n            this.element.innerHTML = html;\n            this.renderedHTML_ = html;\n        }\n    };\n    /**\n     * Update the projection. Rendering of the coordinates is done in\n     * `handleMouseMove` and `handleMouseUp`.\n     * @param {import(\"../MapEvent.js\").default} mapEvent Map event.\n     * @override\n     */\n    MousePosition.prototype.render = function (mapEvent) {\n        var frameState = mapEvent.frameState;\n        if (!frameState) {\n            this.mapProjection_ = null;\n        }\n        else {\n            if (this.mapProjection_ != frameState.viewState.projection) {\n                this.mapProjection_ = frameState.viewState.projection;\n                this.transform_ = null;\n            }\n        }\n    };\n    return MousePosition;\n}(Control));\nexport default MousePosition;\n//# sourceMappingURL=MousePosition.js.map","var __extends = (this && this.__extends) || (function () {\n    var extendStatics = function (d, b) {\n        extendStatics = Object.setPrototypeOf ||\n            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\n            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };\n        return extendStatics(d, b);\n    };\n    return function (d, b) {\n        if (typeof b !== \"function\" && b !== null)\n            throw new TypeError(\"Class extends value \" + String(b) + \" is not a constructor or null\");\n        extendStatics(d, b);\n        function __() { this.constructor = d; }\n        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n    };\n})();\n/**\n * @module ol/control/OverviewMap\n */\nimport CompositeMapRenderer from '../renderer/Composite.js';\nimport Control from './Control.js';\nimport EventType from '../events/EventType.js';\nimport MapEventType from '../MapEventType.js';\nimport MapProperty from '../MapProperty.js';\nimport ObjectEventType from '../ObjectEventType.js';\nimport Overlay from '../Overlay.js';\nimport PluggableMap from '../PluggableMap.js';\nimport View from '../View.js';\nimport ViewProperty from '../ViewProperty.js';\nimport { CLASS_COLLAPSED, CLASS_CONTROL, CLASS_UNSELECTABLE } from '../css.js';\nimport { containsExtent, equals as equalsExtent, getBottomRight, getTopLeft, scaleFromCenter, } from '../extent.js';\nimport { listen, listenOnce } from '../events.js';\nimport { fromExtent as polygonFromExtent } from '../geom/Polygon.js';\nimport { replaceNode } from '../dom.js';\n/**\n * Maximum width and/or height extent ratio that determines when the overview\n * map should be zoomed out.\n * @type {number}\n */\nvar MAX_RATIO = 0.75;\n/**\n * Minimum width and/or height extent ratio that determines when the overview\n * map should be zoomed in.\n * @type {number}\n */\nvar MIN_RATIO = 0.1;\nvar ControlledMap = /** @class */ (function (_super) {\n    __extends(ControlledMap, _super);\n    function ControlledMap() {\n        return _super !== null && _super.apply(this, arguments) || this;\n    }\n    ControlledMap.prototype.createRenderer = function () {\n        return new CompositeMapRenderer(this);\n    };\n    return ControlledMap;\n}(PluggableMap));\n/**\n * @typedef {Object} Options\n * @property {string} [className='ol-overviewmap'] CSS class name.\n * @property {boolean} [collapsed=true] Whether the control should start collapsed or not (expanded).\n * @property {string|HTMLElement} [collapseLabel='‹'] Text label to use for the\n * expanded overviewmap button. Instead of text, also an element (e.g. a `span` element) can be used.\n * @property {boolean} [collapsible=true] Whether the control can be collapsed or not.\n * @property {string|HTMLElement} [label='›'] Text label to use for the collapsed\n * overviewmap button. Instead of text, also an element (e.g. a `span` element) can be used.\n * @property {Array<import(\"../layer/Base.js\").default>|import(\"../Collection.js\").default<import(\"../layer/Base.js\").default>} [layers]\n * Layers for the overview map.\n * @property {function(import(\"../MapEvent.js\").default):void} [render] Function called when the control\n * should be re-rendered. This is called in a `requestAnimationFrame` callback.\n * @property {boolean} [rotateWithView=false] Whether the control view should rotate with the main map view.\n * @property {HTMLElement|string} [target] Specify a target if you want the control\n * to be rendered outside of the map's viewport.\n * @property {string} [tipLabel='Overview map'] Text label to use for the button tip.\n * @property {View} [view] Custom view for the overview map (should use same projection as main map). If not provided,\n * a default view with the same projection as the main map will be used.\n */\n/**\n * Create a new control with a map acting as an overview map for another\n * defined map.\n *\n * @api\n */\nvar OverviewMap = /** @class */ (function (_super) {\n    __extends(OverviewMap, _super);\n    /**\n     * @param {Options} [opt_options] OverviewMap options.\n     */\n    function OverviewMap(opt_options) {\n        var _this = this;\n        var options = opt_options ? opt_options : {};\n        _this = _super.call(this, {\n            element: document.createElement('div'),\n            render: options.render,\n            target: options.target,\n        }) || this;\n        /**\n         * @private\n         */\n        _this.boundHandleRotationChanged_ = _this.handleRotationChanged_.bind(_this);\n        /**\n         * @type {boolean}\n         * @private\n         */\n        _this.collapsed_ =\n            options.collapsed !== undefined ? options.collapsed : true;\n        /**\n         * @private\n         * @type {boolean}\n         */\n        _this.collapsible_ =\n            options.collapsible !== undefined ? options.collapsible : true;\n        if (!_this.collapsible_) {\n            _this.collapsed_ = false;\n        }\n        /**\n         * @private\n         * @type {boolean}\n         */\n        _this.rotateWithView_ =\n            options.rotateWithView !== undefined ? options.rotateWithView : false;\n        /**\n         * @private\n         * @type {import(\"../extent.js\").Extent|undefined}\n         */\n        _this.viewExtent_ = undefined;\n        var className = options.className !== undefined ? options.className : 'ol-overviewmap';\n        var tipLabel = options.tipLabel !== undefined ? options.tipLabel : 'Overview map';\n        var collapseLabel = options.collapseLabel !== undefined ? options.collapseLabel : '\\u2039';\n        if (typeof collapseLabel === 'string') {\n            /**\n             * @private\n             * @type {HTMLElement}\n             */\n            _this.collapseLabel_ = document.createElement('span');\n            _this.collapseLabel_.textContent = collapseLabel;\n        }\n        else {\n            _this.collapseLabel_ = collapseLabel;\n        }\n        var label = options.label !== undefined ? options.label : '\\u203A';\n        if (typeof label === 'string') {\n            /**\n             * @private\n             * @type {HTMLElement}\n             */\n            _this.label_ = document.createElement('span');\n            _this.label_.textContent = label;\n        }\n        else {\n            _this.label_ = label;\n        }\n        var activeLabel = _this.collapsible_ && !_this.collapsed_ ? _this.collapseLabel_ : _this.label_;\n        var button = document.createElement('button');\n        button.setAttribute('type', 'button');\n        button.title = tipLabel;\n        button.appendChild(activeLabel);\n        button.addEventListener(EventType.CLICK, _this.handleClick_.bind(_this), false);\n        /**\n         * @type {HTMLElement}\n         * @private\n         */\n        _this.ovmapDiv_ = document.createElement('div');\n        _this.ovmapDiv_.className = 'ol-overviewmap-map';\n        /**\n         * Explicitly given view to be used instead of a view derived from the main map.\n         * @type {View}\n         * @private\n         */\n        _this.view_ = options.view;\n        /**\n         * @type {ControlledMap}\n         * @private\n         */\n        _this.ovmap_ = new ControlledMap({\n            view: options.view,\n        });\n        var ovmap = _this.ovmap_;\n        if (options.layers) {\n            options.layers.forEach(function (layer) {\n                ovmap.addLayer(layer);\n            });\n        }\n        var box = document.createElement('div');\n        box.className = 'ol-overviewmap-box';\n        box.style.boxSizing = 'border-box';\n        /**\n         * @type {import(\"../Overlay.js\").default}\n         * @private\n         */\n        _this.boxOverlay_ = new Overlay({\n            position: [0, 0],\n            positioning: 'center-center',\n            element: box,\n        });\n        _this.ovmap_.addOverlay(_this.boxOverlay_);\n        var cssClasses = className +\n            ' ' +\n            CLASS_UNSELECTABLE +\n            ' ' +\n            CLASS_CONTROL +\n            (_this.collapsed_ && _this.collapsible_ ? ' ' + CLASS_COLLAPSED : '') +\n            (_this.collapsible_ ? '' : ' ol-uncollapsible');\n        var element = _this.element;\n        element.className = cssClasses;\n        element.appendChild(_this.ovmapDiv_);\n        element.appendChild(button);\n        /* Interactive map */\n        var scope = _this;\n        var overlay = _this.boxOverlay_;\n        var overlayBox = _this.boxOverlay_.getElement();\n        /* Functions definition */\n        var computeDesiredMousePosition = function (mousePosition) {\n            return {\n                clientX: mousePosition.clientX,\n                clientY: mousePosition.clientY,\n            };\n        };\n        var move = function (event) {\n            var position = /** @type {?} */ (computeDesiredMousePosition(event));\n            var coordinates = ovmap.getEventCoordinateInternal(\n            /** @type {MouseEvent} */ (position));\n            overlay.setPosition(coordinates);\n        };\n        var endMoving = function (event) {\n            var coordinates = ovmap.getEventCoordinateInternal(event);\n            scope.getMap().getView().setCenterInternal(coordinates);\n            window.removeEventListener('mousemove', move);\n            window.removeEventListener('mouseup', endMoving);\n        };\n        /* Binding */\n        overlayBox.addEventListener('mousedown', function () {\n            window.addEventListener('mousemove', move);\n            window.addEventListener('mouseup', endMoving);\n        });\n        return _this;\n    }\n    /**\n     * Remove the control from its current map and attach it to the new map.\n     * Pass `null` to just remove the control from the current map.\n     * Subclasses may set up event handlers to get notified about changes to\n     * the map here.\n     * @param {import(\"../PluggableMap.js\").default|null} map Map.\n     * @api\n     */\n    OverviewMap.prototype.setMap = function (map) {\n        var oldMap = this.getMap();\n        if (map === oldMap) {\n            return;\n        }\n        if (oldMap) {\n            var oldView = oldMap.getView();\n            if (oldView) {\n                this.unbindView_(oldView);\n            }\n            this.ovmap_.setTarget(null);\n        }\n        _super.prototype.setMap.call(this, map);\n        if (map) {\n            this.ovmap_.setTarget(this.ovmapDiv_);\n            this.listenerKeys.push(listen(map, ObjectEventType.PROPERTYCHANGE, this.handleMapPropertyChange_, this));\n            var view = map.getView();\n            if (view) {\n                this.bindView_(view);\n                if (view.isDef()) {\n                    this.ovmap_.updateSize();\n                    this.resetExtent_();\n                }\n            }\n            if (!this.ovmap_.isRendered()) {\n                this.updateBoxAfterOvmapIsRendered_();\n            }\n        }\n    };\n    /**\n     * Handle map property changes.  This only deals with changes to the map's view.\n     * @param {import(\"../Object.js\").ObjectEvent} event The propertychange event.\n     * @private\n     */\n    OverviewMap.prototype.handleMapPropertyChange_ = function (event) {\n        if (event.key === MapProperty.VIEW) {\n            var oldView = /** @type {import(\"../View.js\").default} */ (event.oldValue);\n            if (oldView) {\n                this.unbindView_(oldView);\n            }\n            var newView = this.getMap().getView();\n            this.bindView_(newView);\n        }\n        else if (!this.ovmap_.isRendered() &&\n            (event.key === MapProperty.TARGET || event.key === MapProperty.SIZE)) {\n            this.ovmap_.updateSize();\n        }\n    };\n    /**\n     * Register listeners for view property changes.\n     * @param {import(\"../View.js\").default} view The view.\n     * @private\n     */\n    OverviewMap.prototype.bindView_ = function (view) {\n        if (!this.view_) {\n            // Unless an explicit view definition was given, derive default from whatever main map uses.\n            var newView = new View({\n                projection: view.getProjection(),\n            });\n            this.ovmap_.setView(newView);\n        }\n        view.addChangeListener(ViewProperty.ROTATION, this.boundHandleRotationChanged_);\n        // Sync once with the new view\n        this.handleRotationChanged_();\n    };\n    /**\n     * Unregister listeners for view property changes.\n     * @param {import(\"../View.js\").default} view The view.\n     * @private\n     */\n    OverviewMap.prototype.unbindView_ = function (view) {\n        view.removeChangeListener(ViewProperty.ROTATION, this.boundHandleRotationChanged_);\n    };\n    /**\n     * Handle rotation changes to the main map.\n     * @private\n     */\n    OverviewMap.prototype.handleRotationChanged_ = function () {\n        if (this.rotateWithView_) {\n            this.ovmap_.getView().setRotation(this.getMap().getView().getRotation());\n        }\n    };\n    /**\n     * Reset the overview map extent if the box size (width or\n     * height) is less than the size of the overview map size times minRatio\n     * or is greater than the size of the overview size times maxRatio.\n     *\n     * If the map extent was not reset, the box size can fits in the defined\n     * ratio sizes. This method then checks if is contained inside the overview\n     * map current extent. If not, recenter the overview map to the current\n     * main map center location.\n     * @private\n     */\n    OverviewMap.prototype.validateExtent_ = function () {\n        var map = this.getMap();\n        var ovmap = this.ovmap_;\n        if (!map.isRendered() || !ovmap.isRendered()) {\n            return;\n        }\n        var mapSize = /** @type {import(\"../size.js\").Size} */ (map.getSize());\n        var view = map.getView();\n        var extent = view.calculateExtentInternal(mapSize);\n        if (this.viewExtent_ && equalsExtent(extent, this.viewExtent_)) {\n            // repeats of the same extent may indicate constraint conflicts leading to an endless cycle\n            return;\n        }\n        this.viewExtent_ = extent;\n        var ovmapSize = /** @type {import(\"../size.js\").Size} */ (ovmap.getSize());\n        var ovview = ovmap.getView();\n        var ovextent = ovview.calculateExtentInternal(ovmapSize);\n        var topLeftPixel = ovmap.getPixelFromCoordinateInternal(getTopLeft(extent));\n        var bottomRightPixel = ovmap.getPixelFromCoordinateInternal(getBottomRight(extent));\n        var boxWidth = Math.abs(topLeftPixel[0] - bottomRightPixel[0]);\n        var boxHeight = Math.abs(topLeftPixel[1] - bottomRightPixel[1]);\n        var ovmapWidth = ovmapSize[0];\n        var ovmapHeight = ovmapSize[1];\n        if (boxWidth < ovmapWidth * MIN_RATIO ||\n            boxHeight < ovmapHeight * MIN_RATIO ||\n            boxWidth > ovmapWidth * MAX_RATIO ||\n            boxHeight > ovmapHeight * MAX_RATIO) {\n            this.resetExtent_();\n        }\n        else if (!containsExtent(ovextent, extent)) {\n            this.recenter_();\n        }\n    };\n    /**\n     * Reset the overview map extent to half calculated min and max ratio times\n     * the extent of the main map.\n     * @private\n     */\n    OverviewMap.prototype.resetExtent_ = function () {\n        if (MAX_RATIO === 0 || MIN_RATIO === 0) {\n            return;\n        }\n        var map = this.getMap();\n        var ovmap = this.ovmap_;\n        var mapSize = /** @type {import(\"../size.js\").Size} */ (map.getSize());\n        var view = map.getView();\n        var extent = view.calculateExtentInternal(mapSize);\n        var ovview = ovmap.getView();\n        // get how many times the current map overview could hold different\n        // box sizes using the min and max ratio, pick the step in the middle used\n        // to calculate the extent from the main map to set it to the overview map,\n        var steps = Math.log(MAX_RATIO / MIN_RATIO) / Math.LN2;\n        var ratio = 1 / (Math.pow(2, steps / 2) * MIN_RATIO);\n        scaleFromCenter(extent, ratio);\n        ovview.fitInternal(polygonFromExtent(extent));\n    };\n    /**\n     * Set the center of the overview map to the map center without changing its\n     * resolution.\n     * @private\n     */\n    OverviewMap.prototype.recenter_ = function () {\n        var map = this.getMap();\n        var ovmap = this.ovmap_;\n        var view = map.getView();\n        var ovview = ovmap.getView();\n        ovview.setCenterInternal(view.getCenterInternal());\n    };\n    /**\n     * Update the box using the main map extent\n     * @private\n     */\n    OverviewMap.prototype.updateBox_ = function () {\n        var map = this.getMap();\n        var ovmap = this.ovmap_;\n        if (!map.isRendered() || !ovmap.isRendered()) {\n            return;\n        }\n        var mapSize = /** @type {import(\"../size.js\").Size} */ (map.getSize());\n        var view = map.getView();\n        var ovview = ovmap.getView();\n        var rotation = this.rotateWithView_ ? 0 : -view.getRotation();\n        var overlay = this.boxOverlay_;\n        var box = this.boxOverlay_.getElement();\n        var center = view.getCenterInternal();\n        var resolution = view.getResolution();\n        var ovresolution = ovview.getResolution();\n        var width = (mapSize[0] * resolution) / ovresolution;\n        var height = (mapSize[1] * resolution) / ovresolution;\n        // set position using center coordinates\n        overlay.setPosition(center);\n        // set box size calculated from map extent size and overview map resolution\n        if (box) {\n            box.style.width = width + 'px';\n            box.style.height = height + 'px';\n            var transform = 'rotate(' + rotation + 'rad)';\n            box.style.transform = transform;\n        }\n    };\n    /**\n     * @private\n     */\n    OverviewMap.prototype.updateBoxAfterOvmapIsRendered_ = function () {\n        if (this.ovmapPostrenderKey_) {\n            return;\n        }\n        this.ovmapPostrenderKey_ = listenOnce(this.ovmap_, MapEventType.POSTRENDER, function (event) {\n            delete this.ovmapPostrenderKey_;\n            this.updateBox_();\n        }, this);\n    };\n    /**\n     * @param {MouseEvent} event The event to handle\n     * @private\n     */\n    OverviewMap.prototype.handleClick_ = function (event) {\n        event.preventDefault();\n        this.handleToggle_();\n    };\n    /**\n     * @private\n     */\n    OverviewMap.prototype.handleToggle_ = function () {\n        this.element.classList.toggle(CLASS_COLLAPSED);\n        if (this.collapsed_) {\n            replaceNode(this.collapseLabel_, this.label_);\n        }\n        else {\n            replaceNode(this.label_, this.collapseLabel_);\n        }\n        this.collapsed_ = !this.collapsed_;\n        // manage overview map if it had not been rendered before and control\n        // is expanded\n        var ovmap = this.ovmap_;\n        if (!this.collapsed_) {\n            if (ovmap.isRendered()) {\n                this.viewExtent_ = undefined;\n                ovmap.render();\n                return;\n            }\n            ovmap.updateSize();\n            this.resetExtent_();\n            this.updateBoxAfterOvmapIsRendered_();\n        }\n    };\n    /**\n     * Return `true` if the overview map is collapsible, `false` otherwise.\n     * @return {boolean} True if the widget is collapsible.\n     * @api\n     */\n    OverviewMap.prototype.getCollapsible = function () {\n        return this.collapsible_;\n    };\n    /**\n     * Set whether the overview map should be collapsible.\n     * @param {boolean} collapsible True if the widget is collapsible.\n     * @api\n     */\n    OverviewMap.prototype.setCollapsible = function (collapsible) {\n        if (this.collapsible_ === collapsible) {\n            return;\n        }\n        this.collapsible_ = collapsible;\n        this.element.classList.toggle('ol-uncollapsible');\n        if (!collapsible && this.collapsed_) {\n            this.handleToggle_();\n        }\n    };\n    /**\n     * Collapse or expand the overview map according to the passed parameter. Will\n     * not do anything if the overview map isn't collapsible or if the current\n     * collapsed state is already the one requested.\n     * @param {boolean} collapsed True if the widget is collapsed.\n     * @api\n     */\n    OverviewMap.prototype.setCollapsed = function (collapsed) {\n        if (!this.collapsible_ || this.collapsed_ === collapsed) {\n            return;\n        }\n        this.handleToggle_();\n    };\n    /**\n     * Determine if the overview map is collapsed.\n     * @return {boolean} The overview map is collapsed.\n     * @api\n     */\n    OverviewMap.prototype.getCollapsed = function () {\n        return this.collapsed_;\n    };\n    /**\n     * Return `true` if the overview map view can rotate, `false` otherwise.\n     * @return {boolean} True if the control view can rotate.\n     * @api\n     */\n    OverviewMap.prototype.getRotateWithView = function () {\n        return this.rotateWithView_;\n    };\n    /**\n     * Set whether the overview map view should rotate with the main map view.\n     * @param {boolean} rotateWithView True if the control view should rotate.\n     * @api\n     */\n    OverviewMap.prototype.setRotateWithView = function (rotateWithView) {\n        if (this.rotateWithView_ === rotateWithView) {\n            return;\n        }\n        this.rotateWithView_ = rotateWithView;\n        if (this.getMap().getView().getRotation() !== 0) {\n            if (this.rotateWithView_) {\n                this.handleRotationChanged_();\n            }\n            else {\n                this.ovmap_.getView().setRotation(0);\n            }\n            this.viewExtent_ = undefined;\n            this.validateExtent_();\n            this.updateBox_();\n        }\n    };\n    /**\n     * Return the overview map.\n     * @return {import(\"../PluggableMap.js\").default} Overview map.\n     * @api\n     */\n    OverviewMap.prototype.getOverviewMap = function () {\n        return this.ovmap_;\n    };\n    /**\n     * Update the overview map element.\n     * @param {import(\"../MapEvent.js\").default} mapEvent Map event.\n     * @override\n     */\n    OverviewMap.prototype.render = function (mapEvent) {\n        this.validateExtent_();\n        this.updateBox_();\n    };\n    return OverviewMap;\n}(Control));\nexport default OverviewMap;\n//# sourceMappingURL=OverviewMap.js.map","var __extends = (this && this.__extends) || (function () {\n    var extendStatics = function (d, b) {\n        extendStatics = Object.setPrototypeOf ||\n            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\n            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };\n        return extendStatics(d, b);\n    };\n    return function (d, b) {\n        if (typeof b !== \"function\" && b !== null)\n            throw new TypeError(\"Class extends value \" + String(b) + \" is not a constructor or null\");\n        extendStatics(d, b);\n        function __() { this.constructor = d; }\n        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n    };\n})();\n/**\n * @module ol/control/Rotate\n */\nimport Control from './Control.js';\nimport EventType from '../events/EventType.js';\nimport { CLASS_CONTROL, CLASS_HIDDEN, CLASS_UNSELECTABLE } from '../css.js';\nimport { easeOut } from '../easing.js';\n/**\n * @typedef {Object} Options\n * @property {string} [className='ol-rotate'] CSS class name.\n * @property {string|HTMLElement} [label='⇧'] Text label to use for the rotate button.\n * Instead of text, also an element (e.g. a `span` element) can be used.\n * @property {string} [tipLabel='Reset rotation'] Text label to use for the rotate tip.\n * @property {string} [compassClassName='ol-compass'] CSS class name for the compass.\n * @property {number} [duration=250] Animation duration in milliseconds.\n * @property {boolean} [autoHide=true] Hide the control when rotation is 0.\n * @property {function(import(\"../MapEvent.js\").default):void} [render] Function called when the control should\n * be re-rendered. This is called in a `requestAnimationFrame` callback.\n * @property {function():void} [resetNorth] Function called when the control is clicked.\n * This will override the default `resetNorth`.\n * @property {HTMLElement|string} [target] Specify a target if you want the control to be\n * rendered outside of the map's viewport.\n */\n/**\n * @classdesc\n * A button control to reset rotation to 0.\n * To style this control use css selector `.ol-rotate`. A `.ol-hidden` css\n * selector is added to the button when the rotation is 0.\n *\n * @api\n */\nvar Rotate = /** @class */ (function (_super) {\n    __extends(Rotate, _super);\n    /**\n     * @param {Options} [opt_options] Rotate options.\n     */\n    function Rotate(opt_options) {\n        var _this = this;\n        var options = opt_options ? opt_options : {};\n        _this = _super.call(this, {\n            element: document.createElement('div'),\n            render: options.render,\n            target: options.target,\n        }) || this;\n        var className = options.className !== undefined ? options.className : 'ol-rotate';\n        var label = options.label !== undefined ? options.label : '\\u21E7';\n        var compassClassName = options.compassClassName !== undefined\n            ? options.compassClassName\n            : 'ol-compass';\n        /**\n         * @type {HTMLElement}\n         * @private\n         */\n        _this.label_ = null;\n        if (typeof label === 'string') {\n            _this.label_ = document.createElement('span');\n            _this.label_.className = compassClassName;\n            _this.label_.textContent = label;\n        }\n        else {\n            _this.label_ = label;\n            _this.label_.classList.add(compassClassName);\n        }\n        var tipLabel = options.tipLabel ? options.tipLabel : 'Reset rotation';\n        var button = document.createElement('button');\n        button.className = className + '-reset';\n        button.setAttribute('type', 'button');\n        button.title = tipLabel;\n        button.appendChild(_this.label_);\n        button.addEventListener(EventType.CLICK, _this.handleClick_.bind(_this), false);\n        var cssClasses = className + ' ' + CLASS_UNSELECTABLE + ' ' + CLASS_CONTROL;\n        var element = _this.element;\n        element.className = cssClasses;\n        element.appendChild(button);\n        _this.callResetNorth_ = options.resetNorth ? options.resetNorth : undefined;\n        /**\n         * @type {number}\n         * @private\n         */\n        _this.duration_ = options.duration !== undefined ? options.duration : 250;\n        /**\n         * @type {boolean}\n         * @private\n         */\n        _this.autoHide_ = options.autoHide !== undefined ? options.autoHide : true;\n        /**\n         * @private\n         * @type {number|undefined}\n         */\n        _this.rotation_ = undefined;\n        if (_this.autoHide_) {\n            _this.element.classList.add(CLASS_HIDDEN);\n        }\n        return _this;\n    }\n    /**\n     * @param {MouseEvent} event The event to handle\n     * @private\n     */\n    Rotate.prototype.handleClick_ = function (event) {\n        event.preventDefault();\n        if (this.callResetNorth_ !== undefined) {\n            this.callResetNorth_();\n        }\n        else {\n            this.resetNorth_();\n        }\n    };\n    /**\n     * @private\n     */\n    Rotate.prototype.resetNorth_ = function () {\n        var map = this.getMap();\n        var view = map.getView();\n        if (!view) {\n            // the map does not have a view, so we can't act\n            // upon it\n            return;\n        }\n        var rotation = view.getRotation();\n        if (rotation !== undefined) {\n            if (this.duration_ > 0 && rotation % (2 * Math.PI) !== 0) {\n                view.animate({\n                    rotation: 0,\n                    duration: this.duration_,\n                    easing: easeOut,\n                });\n            }\n            else {\n                view.setRotation(0);\n            }\n        }\n    };\n    /**\n     * Update the rotate control element.\n     * @param {import(\"../MapEvent.js\").default} mapEvent Map event.\n     * @override\n     */\n    Rotate.prototype.render = function (mapEvent) {\n        var frameState = mapEvent.frameState;\n        if (!frameState) {\n            return;\n        }\n        var rotation = frameState.viewState.rotation;\n        if (rotation != this.rotation_) {\n            var transform = 'rotate(' + rotation + 'rad)';\n            if (this.autoHide_) {\n                var contains = this.element.classList.contains(CLASS_HIDDEN);\n                if (!contains && rotation === 0) {\n                    this.element.classList.add(CLASS_HIDDEN);\n                }\n                else if (contains && rotation !== 0) {\n                    this.element.classList.remove(CLASS_HIDDEN);\n                }\n            }\n            this.label_.style.transform = transform;\n        }\n        this.rotation_ = rotation;\n    };\n    return Rotate;\n}(Control));\nexport default Rotate;\n//# sourceMappingURL=Rotate.js.map","var __extends = (this && this.__extends) || (function () {\n    var extendStatics = function (d, b) {\n        extendStatics = Object.setPrototypeOf ||\n            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\n            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };\n        return extendStatics(d, b);\n    };\n    return function (d, b) {\n        if (typeof b !== \"function\" && b !== null)\n            throw new TypeError(\"Class extends value \" + String(b) + \" is not a constructor or null\");\n        extendStatics(d, b);\n        function __() { this.constructor = d; }\n        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n    };\n})();\n/**\n * @module ol/control/ScaleLine\n */\nimport Control from './Control.js';\nimport ProjUnits from '../proj/Units.js';\nimport { CLASS_UNSELECTABLE } from '../css.js';\nimport { METERS_PER_UNIT, getPointResolution } from '../proj.js';\nimport { assert } from '../asserts.js';\n/**\n * @type {string}\n */\nvar UNITS_PROP = 'units';\n/**\n * Units for the scale line. Supported values are `'degrees'`, `'imperial'`,\n * `'nautical'`, `'metric'`, `'us'`.\n * @enum {string}\n */\nexport var Units = {\n    DEGREES: 'degrees',\n    IMPERIAL: 'imperial',\n    NAUTICAL: 'nautical',\n    METRIC: 'metric',\n    US: 'us',\n};\n/**\n * @const\n * @type {Array<number>}\n */\nvar LEADING_DIGITS = [1, 2, 5];\n/**\n * @const\n * @type {number}\n */\nvar DEFAULT_DPI = 25.4 / 0.28;\n/***\n * @template Return\n * @typedef {import(\"../Observable\").OnSignature<import(\"../Observable\").EventTypes, import(\"../events/Event.js\").default, Return> &\n *   import(\"../Observable\").OnSignature<import(\"../ObjectEventType\").Types|\n *     'change:units', import(\"../Object\").ObjectEvent, Return> &\n *   import(\"../Observable\").CombinedOnSignature<import(\"../Observable\").EventTypes|import(\"../ObjectEventType\").Types\n *     |'change:units', Return>} ScaleLineOnSignature\n */\n/**\n * @typedef {Object} Options\n * @property {string} [className='ol-scale-line'] CSS Class name.\n * @property {number} [minWidth=64] Minimum width in pixels at the OGC default dpi. The width will be\n * adjusted to match the dpi used.\n * @property {number} [maxWidth] Maximum width in pixels at the OGC default dpi. The width will be\n * adjusted to match the dpi used.\n * @property {function(import(\"../MapEvent.js\").default):void} [render] Function called when the control\n * should be re-rendered. This is called in a `requestAnimationFrame` callback.\n * @property {HTMLElement|string} [target] Specify a target if you want the control\n * to be rendered outside of the map's viewport.\n * @property {import(\"./ScaleLine.js\").Units|string} [units='metric'] Units.\n * @property {boolean} [bar=false] Render scalebars instead of a line.\n * @property {number} [steps=4] Number of steps the scalebar should use. Use even numbers\n * for best results. Only applies when `bar` is `true`.\n * @property {boolean} [text=false] Render the text scale above of the scalebar. Only applies\n * when `bar` is `true`.\n * @property {number|undefined} [dpi=undefined] dpi of output device such as printer. Only applies\n * when `bar` is `true`. If undefined the OGC default screen pixel size of 0.28mm will be assumed.\n */\n/**\n * @classdesc\n * A control displaying rough y-axis distances, calculated for the center of the\n * viewport. For conformal projections (e.g. EPSG:3857, the default view\n * projection in OpenLayers), the scale is valid for all directions.\n * No scale line will be shown when the y-axis distance of a pixel at the\n * viewport center cannot be calculated in the view projection.\n * By default the scale line will show in the bottom left portion of the map,\n * but this can be changed by using the css selector `.ol-scale-line`.\n * When specifying `bar` as `true`, a scalebar will be rendered instead\n * of a scaleline.\n *\n * @api\n */\nvar ScaleLine = /** @class */ (function (_super) {\n    __extends(ScaleLine, _super);\n    /**\n     * @param {Options} [opt_options] Scale line options.\n     */\n    function ScaleLine(opt_options) {\n        var _this = this;\n        var options = opt_options ? opt_options : {};\n        var className = options.className !== undefined\n            ? options.className\n            : options.bar\n                ? 'ol-scale-bar'\n                : 'ol-scale-line';\n        _this = _super.call(this, {\n            element: document.createElement('div'),\n            render: options.render,\n            target: options.target,\n        }) || this;\n        /***\n         * @type {ScaleLineOnSignature<import(\"../events\").EventsKey>}\n         */\n        _this.on;\n        /***\n         * @type {ScaleLineOnSignature<import(\"../events\").EventsKey>}\n         */\n        _this.once;\n        /***\n         * @type {ScaleLineOnSignature<void>}\n         */\n        _this.un;\n        /**\n         * @private\n         * @type {HTMLElement}\n         */\n        _this.innerElement_ = document.createElement('div');\n        _this.innerElement_.className = className + '-inner';\n        _this.element.className = className + ' ' + CLASS_UNSELECTABLE;\n        _this.element.appendChild(_this.innerElement_);\n        /**\n         * @private\n         * @type {?import(\"../View.js\").State}\n         */\n        _this.viewState_ = null;\n        /**\n         * @private\n         * @type {number}\n         */\n        _this.minWidth_ = options.minWidth !== undefined ? options.minWidth : 64;\n        /**\n         * @private\n         * @type {number|undefined}\n         */\n        _this.maxWidth_ = options.maxWidth;\n        /**\n         * @private\n         * @type {boolean}\n         */\n        _this.renderedVisible_ = false;\n        /**\n         * @private\n         * @type {number|undefined}\n         */\n        _this.renderedWidth_ = undefined;\n        /**\n         * @private\n         * @type {string}\n         */\n        _this.renderedHTML_ = '';\n        _this.addChangeListener(UNITS_PROP, _this.handleUnitsChanged_);\n        _this.setUnits(options.units || Units.METRIC);\n        /**\n         * @private\n         * @type {boolean}\n         */\n        _this.scaleBar_ = options.bar || false;\n        /**\n         * @private\n         * @type {number}\n         */\n        _this.scaleBarSteps_ = options.steps || 4;\n        /**\n         * @private\n         * @type {boolean}\n         */\n        _this.scaleBarText_ = options.text || false;\n        /**\n         * @private\n         * @type {number|undefined}\n         */\n        _this.dpi_ = options.dpi || undefined;\n        return _this;\n    }\n    /**\n     * Return the units to use in the scale line.\n     * @return {import(\"./ScaleLine.js\").Units} The units\n     * to use in the scale line.\n     * @observable\n     * @api\n     */\n    ScaleLine.prototype.getUnits = function () {\n        return this.get(UNITS_PROP);\n    };\n    /**\n     * @private\n     */\n    ScaleLine.prototype.handleUnitsChanged_ = function () {\n        this.updateElement_();\n    };\n    /**\n     * Set the units to use in the scale line.\n     * @param {import(\"./ScaleLine.js\").Units} units The units to use in the scale line.\n     * @observable\n     * @api\n     */\n    ScaleLine.prototype.setUnits = function (units) {\n        this.set(UNITS_PROP, units);\n    };\n    /**\n     * Specify the dpi of output device such as printer.\n     * @param {number|undefined} dpi The dpi of output device.\n     * @api\n     */\n    ScaleLine.prototype.setDpi = function (dpi) {\n        this.dpi_ = dpi;\n    };\n    /**\n     * @private\n     */\n    ScaleLine.prototype.updateElement_ = function () {\n        var viewState = this.viewState_;\n        if (!viewState) {\n            if (this.renderedVisible_) {\n                this.element.style.display = 'none';\n                this.renderedVisible_ = false;\n            }\n            return;\n        }\n        var center = viewState.center;\n        var projection = viewState.projection;\n        var units = this.getUnits();\n        var pointResolutionUnits = units == Units.DEGREES ? ProjUnits.DEGREES : ProjUnits.METERS;\n        var pointResolution = getPointResolution(projection, viewState.resolution, center, pointResolutionUnits);\n        var minWidth = (this.minWidth_ * (this.dpi_ || DEFAULT_DPI)) / DEFAULT_DPI;\n        var maxWidth = this.maxWidth_ !== undefined\n            ? (this.maxWidth_ * (this.dpi_ || DEFAULT_DPI)) / DEFAULT_DPI\n            : undefined;\n        var nominalCount = minWidth * pointResolution;\n        var suffix = '';\n        if (units == Units.DEGREES) {\n            var metersPerDegree = METERS_PER_UNIT[ProjUnits.DEGREES];\n            nominalCount *= metersPerDegree;\n            if (nominalCount < metersPerDegree / 60) {\n                suffix = '\\u2033'; // seconds\n                pointResolution *= 3600;\n            }\n            else if (nominalCount < metersPerDegree) {\n                suffix = '\\u2032'; // minutes\n                pointResolution *= 60;\n            }\n            else {\n                suffix = '\\u00b0'; // degrees\n            }\n        }\n        else if (units == Units.IMPERIAL) {\n            if (nominalCount < 0.9144) {\n                suffix = 'in';\n                pointResolution /= 0.0254;\n            }\n            else if (nominalCount < 1609.344) {\n                suffix = 'ft';\n                pointResolution /= 0.3048;\n            }\n            else {\n                suffix = 'mi';\n                pointResolution /= 1609.344;\n            }\n        }\n        else if (units == Units.NAUTICAL) {\n            pointResolution /= 1852;\n            suffix = 'NM';\n        }\n        else if (units == Units.METRIC) {\n            if (nominalCount < 0.001) {\n                suffix = 'μm';\n                pointResolution *= 1000000;\n            }\n            else if (nominalCount < 1) {\n                suffix = 'mm';\n                pointResolution *= 1000;\n            }\n            else if (nominalCount < 1000) {\n                suffix = 'm';\n            }\n            else {\n                suffix = 'km';\n                pointResolution /= 1000;\n            }\n        }\n        else if (units == Units.US) {\n            if (nominalCount < 0.9144) {\n                suffix = 'in';\n                pointResolution *= 39.37;\n            }\n            else if (nominalCount < 1609.344) {\n                suffix = 'ft';\n                pointResolution /= 0.30480061;\n            }\n            else {\n                suffix = 'mi';\n                pointResolution /= 1609.3472;\n            }\n        }\n        else {\n            assert(false, 33); // Invalid units\n        }\n        var i = 3 * Math.floor(Math.log(minWidth * pointResolution) / Math.log(10));\n        var count, width, decimalCount;\n        var previousCount, previousWidth, previousDecimalCount;\n        while (true) {\n            decimalCount = Math.floor(i / 3);\n            var decimal = Math.pow(10, decimalCount);\n            count = LEADING_DIGITS[((i % 3) + 3) % 3] * decimal;\n            width = Math.round(count / pointResolution);\n            if (isNaN(width)) {\n                this.element.style.display = 'none';\n                this.renderedVisible_ = false;\n                return;\n            }\n            if (maxWidth !== undefined && width >= maxWidth) {\n                count = previousCount;\n                width = previousWidth;\n                decimalCount = previousDecimalCount;\n                break;\n            }\n            else if (width >= minWidth) {\n                break;\n            }\n            previousCount = count;\n            previousWidth = width;\n            previousDecimalCount = decimalCount;\n            ++i;\n        }\n        var html;\n        if (this.scaleBar_) {\n            html = this.createScaleBar(width, count, suffix);\n        }\n        else {\n            html = count.toFixed(decimalCount < 0 ? -decimalCount : 0) + ' ' + suffix;\n        }\n        if (this.renderedHTML_ != html) {\n            this.innerElement_.innerHTML = html;\n            this.renderedHTML_ = html;\n        }\n        if (this.renderedWidth_ != width) {\n            this.innerElement_.style.width = width + 'px';\n            this.renderedWidth_ = width;\n        }\n        if (!this.renderedVisible_) {\n            this.element.style.display = '';\n            this.renderedVisible_ = true;\n        }\n    };\n    /**\n     * @private\n     * @param {number} width The current width of the scalebar.\n     * @param {number} scale The current scale.\n     * @param {string} suffix The suffix to append to the scale text.\n     * @return {string} The stringified HTML of the scalebar.\n     */\n    ScaleLine.prototype.createScaleBar = function (width, scale, suffix) {\n        var mapScale = '1 : ' + Math.round(this.getScaleForResolution()).toLocaleString();\n        var scaleSteps = [];\n        var stepWidth = width / this.scaleBarSteps_;\n        var backgroundColor = 'ol-scale-singlebar-odd';\n        for (var i = 0; i < this.scaleBarSteps_; i++) {\n            if (i === 0) {\n                // create the first marker at position 0\n                scaleSteps.push(this.createMarker('absolute', i));\n            }\n            scaleSteps.push('<div>' +\n                '<div ' +\n                'class=\"ol-scale-singlebar ' +\n                backgroundColor +\n                '\" ' +\n                'style=' +\n                '\"width: ' +\n                stepWidth +\n                'px;\"' +\n                '>' +\n                '</div>' +\n                this.createMarker('relative', i) +\n                /*render text every second step, except when only 2 steps */\n                (i % 2 === 0 || this.scaleBarSteps_ === 2\n                    ? this.createStepText(i, width, false, scale, suffix)\n                    : '') +\n                '</div>');\n            if (i === this.scaleBarSteps_ - 1) {\n                {\n                    /*render text at the end */\n                }\n                scaleSteps.push(this.createStepText(i + 1, width, true, scale, suffix));\n            }\n            // switch style of steps\n            backgroundColor =\n                backgroundColor === 'ol-scale-singlebar-odd'\n                    ? 'ol-scale-singlebar-even'\n                    : 'ol-scale-singlebar-odd';\n        }\n        var scaleBarText;\n        if (this.scaleBarText_) {\n            scaleBarText =\n                '<div ' +\n                    'class=\"ol-scale-text\" ' +\n                    'style=\"width: ' +\n                    width +\n                    'px;\">' +\n                    mapScale +\n                    '</div>';\n        }\n        else {\n            scaleBarText = '';\n        }\n        var container = '<div ' +\n            'style=\"display: flex;\">' +\n            scaleBarText +\n            scaleSteps.join('') +\n            '</div>';\n        return container;\n    };\n    /**\n     * Creates a marker at given position\n     * @param {string} position The position, absolute or relative\n     * @param {number} i The iterator\n     * @return {string} The stringified div containing the marker\n     */\n    ScaleLine.prototype.createMarker = function (position, i) {\n        var top = position === 'absolute' ? 3 : -10;\n        return ('<div ' +\n            'class=\"ol-scale-step-marker\" ' +\n            'style=\"position: ' +\n            position +\n            ';' +\n            'top: ' +\n            top +\n            'px;\"' +\n            '></div>');\n    };\n    /**\n     * Creates the label for a marker marker at given position\n     * @param {number} i The iterator\n     * @param {number} width The width the scalebar will currently use\n     * @param {boolean} isLast Flag indicating if we add the last step text\n     * @param {number} scale The current scale for the whole scalebar\n     * @param {string} suffix The suffix for the scale\n     * @return {string} The stringified div containing the step text\n     */\n    ScaleLine.prototype.createStepText = function (i, width, isLast, scale, suffix) {\n        var length = i === 0 ? 0 : Math.round((scale / this.scaleBarSteps_) * i * 100) / 100;\n        var lengthString = length + (i === 0 ? '' : ' ' + suffix);\n        var margin = i === 0 ? -3 : (width / this.scaleBarSteps_) * -1;\n        var minWidth = i === 0 ? 0 : (width / this.scaleBarSteps_) * 2;\n        return ('<div ' +\n            'class=\"ol-scale-step-text\" ' +\n            'style=\"' +\n            'margin-left: ' +\n            margin +\n            'px;' +\n            'text-align: ' +\n            (i === 0 ? 'left' : 'center') +\n            '; ' +\n            'min-width: ' +\n            minWidth +\n            'px;' +\n            'left: ' +\n            (isLast ? width + 'px' : 'unset') +\n            ';\"' +\n            '>' +\n            lengthString +\n            '</div>');\n    };\n    /**\n     * Returns the appropriate scale for the given resolution and units.\n     * @return {number} The appropriate scale.\n     */\n    ScaleLine.prototype.getScaleForResolution = function () {\n        var resolution = getPointResolution(this.viewState_.projection, this.viewState_.resolution, this.viewState_.center, ProjUnits.METERS);\n        var dpi = this.dpi_ || DEFAULT_DPI;\n        var inchesPerMeter = 1000 / 25.4;\n        return parseFloat(resolution.toString()) * inchesPerMeter * dpi;\n    };\n    /**\n     * Update the scale line element.\n     * @param {import(\"../MapEvent.js\").default} mapEvent Map event.\n     * @override\n     */\n    ScaleLine.prototype.render = function (mapEvent) {\n        var frameState = mapEvent.frameState;\n        if (!frameState) {\n            this.viewState_ = null;\n        }\n        else {\n            this.viewState_ = frameState.viewState;\n        }\n        this.updateElement_();\n    };\n    return ScaleLine;\n}(Control));\nexport default ScaleLine;\n//# sourceMappingURL=ScaleLine.js.map","var __extends = (this && this.__extends) || (function () {\n    var extendStatics = function (d, b) {\n        extendStatics = Object.setPrototypeOf ||\n            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\n            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };\n        return extendStatics(d, b);\n    };\n    return function (d, b) {\n        if (typeof b !== \"function\" && b !== null)\n            throw new TypeError(\"Class extends value \" + String(b) + \" is not a constructor or null\");\n        extendStatics(d, b);\n        function __() { this.constructor = d; }\n        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n    };\n})();\n/**\n * @module ol/control/Zoom\n */\nimport Control from './Control.js';\nimport EventType from '../events/EventType.js';\nimport { CLASS_CONTROL, CLASS_UNSELECTABLE } from '../css.js';\nimport { easeOut } from '../easing.js';\n/**\n * @typedef {Object} Options\n * @property {number} [duration=250] Animation duration in milliseconds.\n * @property {string} [className='ol-zoom'] CSS class name.\n * @property {string} [zoomInClassName=className + '-in'] CSS class name for the zoom-in button.\n * @property {string} [zoomOutClassName=className + '-out'] CSS class name for the zoom-out button.\n * @property {string|HTMLElement} [zoomInLabel='+'] Text label to use for the zoom-in\n * button. Instead of text, also an element (e.g. a `span` element) can be used.\n * @property {string|HTMLElement} [zoomOutLabel='–'] Text label to use for the zoom-out button.\n * Instead of text, also an element (e.g. a `span` element) can be used.\n * @property {string} [zoomInTipLabel='Zoom in'] Text label to use for the button tip.\n * @property {string} [zoomOutTipLabel='Zoom out'] Text label to use for the button tip.\n * @property {number} [delta=1] The zoom delta applied on each click.\n * @property {HTMLElement|string} [target] Specify a target if you want the control to be\n * rendered outside of the map's viewport.\n */\n/**\n * @classdesc\n * A control with 2 buttons, one for zoom in and one for zoom out.\n * This control is one of the default controls of a map. To style this control\n * use css selectors `.ol-zoom-in` and `.ol-zoom-out`.\n *\n * @api\n */\nvar Zoom = /** @class */ (function (_super) {\n    __extends(Zoom, _super);\n    /**\n     * @param {Options} [opt_options] Zoom options.\n     */\n    function Zoom(opt_options) {\n        var _this = this;\n        var options = opt_options ? opt_options : {};\n        _this = _super.call(this, {\n            element: document.createElement('div'),\n            target: options.target,\n        }) || this;\n        var className = options.className !== undefined ? options.className : 'ol-zoom';\n        var delta = options.delta !== undefined ? options.delta : 1;\n        var zoomInClassName = options.zoomInClassName !== undefined\n            ? options.zoomInClassName\n            : className + '-in';\n        var zoomOutClassName = options.zoomOutClassName !== undefined\n            ? options.zoomOutClassName\n            : className + '-out';\n        var zoomInLabel = options.zoomInLabel !== undefined ? options.zoomInLabel : '+';\n        var zoomOutLabel = options.zoomOutLabel !== undefined ? options.zoomOutLabel : '\\u2013';\n        var zoomInTipLabel = options.zoomInTipLabel !== undefined ? options.zoomInTipLabel : 'Zoom in';\n        var zoomOutTipLabel = options.zoomOutTipLabel !== undefined\n            ? options.zoomOutTipLabel\n            : 'Zoom out';\n        var inElement = document.createElement('button');\n        inElement.className = zoomInClassName;\n        inElement.setAttribute('type', 'button');\n        inElement.title = zoomInTipLabel;\n        inElement.appendChild(typeof zoomInLabel === 'string'\n            ? document.createTextNode(zoomInLabel)\n            : zoomInLabel);\n        inElement.addEventListener(EventType.CLICK, _this.handleClick_.bind(_this, delta), false);\n        var outElement = document.createElement('button');\n        outElement.className = zoomOutClassName;\n        outElement.setAttribute('type', 'button');\n        outElement.title = zoomOutTipLabel;\n        outElement.appendChild(typeof zoomOutLabel === 'string'\n            ? document.createTextNode(zoomOutLabel)\n            : zoomOutLabel);\n        outElement.addEventListener(EventType.CLICK, _this.handleClick_.bind(_this, -delta), false);\n        var cssClasses = className + ' ' + CLASS_UNSELECTABLE + ' ' + CLASS_CONTROL;\n        var element = _this.element;\n        element.className = cssClasses;\n        element.appendChild(inElement);\n        element.appendChild(outElement);\n        /**\n         * @type {number}\n         * @private\n         */\n        _this.duration_ = options.duration !== undefined ? options.duration : 250;\n        return _this;\n    }\n    /**\n     * @param {number} delta Zoom delta.\n     * @param {MouseEvent} event The event to handle\n     * @private\n     */\n    Zoom.prototype.handleClick_ = function (delta, event) {\n        event.preventDefault();\n        this.zoomByDelta_(delta);\n    };\n    /**\n     * @param {number} delta Zoom delta.\n     * @private\n     */\n    Zoom.prototype.zoomByDelta_ = function (delta) {\n        var map = this.getMap();\n        var view = map.getView();\n        if (!view) {\n            // the map does not have a view, so we can't act\n            // upon it\n            return;\n        }\n        var currentZoom = view.getZoom();\n        if (currentZoom !== undefined) {\n            var newZoom = view.getConstrainedZoom(currentZoom + delta);\n            if (this.duration_ > 0) {\n                if (view.getAnimating()) {\n                    view.cancelAnimations();\n                }\n                view.animate({\n                    zoom: newZoom,\n                    duration: this.duration_,\n                    easing: easeOut,\n                });\n            }\n            else {\n                view.setZoom(newZoom);\n            }\n        }\n    };\n    return Zoom;\n}(Control));\nexport default Zoom;\n//# sourceMappingURL=Zoom.js.map","/**\n * @module ol/control/ZoomSlider\n */\nvar __extends = (this && this.__extends) || (function () {\n    var extendStatics = function (d, b) {\n        extendStatics = Object.setPrototypeOf ||\n            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\n            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };\n        return extendStatics(d, b);\n    };\n    return function (d, b) {\n        if (typeof b !== \"function\" && b !== null)\n            throw new TypeError(\"Class extends value \" + String(b) + \" is not a constructor or null\");\n        extendStatics(d, b);\n        function __() { this.constructor = d; }\n        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n    };\n})();\nimport Control from './Control.js';\nimport EventType from '../events/EventType.js';\nimport PointerEventType from '../pointer/EventType.js';\nimport { CLASS_CONTROL, CLASS_UNSELECTABLE } from '../css.js';\nimport { clamp } from '../math.js';\nimport { easeOut } from '../easing.js';\nimport { listen, unlistenByKey } from '../events.js';\nimport { stopPropagation } from '../events/Event.js';\n/**\n * The enum for available directions.\n *\n * @enum {number}\n */\nvar Direction = {\n    VERTICAL: 0,\n    HORIZONTAL: 1,\n};\n/**\n * @typedef {Object} Options\n * @property {string} [className='ol-zoomslider'] CSS class name.\n * @property {number} [duration=200] Animation duration in milliseconds.\n * @property {function(import(\"../MapEvent.js\").default):void} [render] Function called when the control\n * should be re-rendered. This is called in a `requestAnimationFrame` callback.\n */\n/**\n * @classdesc\n * A slider type of control for zooming.\n *\n * Example:\n *\n *     map.addControl(new ZoomSlider());\n *\n * @api\n */\nvar ZoomSlider = /** @class */ (function (_super) {\n    __extends(ZoomSlider, _super);\n    /**\n     * @param {Options} [opt_options] Zoom slider options.\n     */\n    function ZoomSlider(opt_options) {\n        var _this = this;\n        var options = opt_options ? opt_options : {};\n        _this = _super.call(this, {\n            element: document.createElement('div'),\n            render: options.render,\n        }) || this;\n        /**\n         * @type {!Array<import(\"../events.js\").EventsKey>}\n         * @private\n         */\n        _this.dragListenerKeys_ = [];\n        /**\n         * Will hold the current resolution of the view.\n         *\n         * @type {number|undefined}\n         * @private\n         */\n        _this.currentResolution_ = undefined;\n        /**\n         * The direction of the slider. Will be determined from actual display of the\n         * container and defaults to Direction.VERTICAL.\n         *\n         * @type {Direction}\n         * @private\n         */\n        _this.direction_ = Direction.VERTICAL;\n        /**\n         * @type {boolean}\n         * @private\n         */\n        _this.dragging_;\n        /**\n         * @type {number}\n         * @private\n         */\n        _this.heightLimit_ = 0;\n        /**\n         * @type {number}\n         * @private\n         */\n        _this.widthLimit_ = 0;\n        /**\n         * @type {number|undefined}\n         * @private\n         */\n        _this.startX_;\n        /**\n         * @type {number|undefined}\n         * @private\n         */\n        _this.startY_;\n        /**\n         * The calculated thumb size (border box plus margins).  Set when initSlider_\n         * is called.\n         * @type {import(\"../size.js\").Size}\n         * @private\n         */\n        _this.thumbSize_ = null;\n        /**\n         * Whether the slider is initialized.\n         * @type {boolean}\n         * @private\n         */\n        _this.sliderInitialized_ = false;\n        /**\n         * @type {number}\n         * @private\n         */\n        _this.duration_ = options.duration !== undefined ? options.duration : 200;\n        var className = options.className !== undefined ? options.className : 'ol-zoomslider';\n        var thumbElement = document.createElement('button');\n        thumbElement.setAttribute('type', 'button');\n        thumbElement.className = className + '-thumb ' + CLASS_UNSELECTABLE;\n        var containerElement = _this.element;\n        containerElement.className =\n            className + ' ' + CLASS_UNSELECTABLE + ' ' + CLASS_CONTROL;\n        containerElement.appendChild(thumbElement);\n        containerElement.addEventListener(PointerEventType.POINTERDOWN, _this.handleDraggerStart_.bind(_this), false);\n        containerElement.addEventListener(PointerEventType.POINTERMOVE, _this.handleDraggerDrag_.bind(_this), false);\n        containerElement.addEventListener(PointerEventType.POINTERUP, _this.handleDraggerEnd_.bind(_this), false);\n        containerElement.addEventListener(EventType.CLICK, _this.handleContainerClick_.bind(_this), false);\n        thumbElement.addEventListener(EventType.CLICK, stopPropagation, false);\n        return _this;\n    }\n    /**\n     * Remove the control from its current map and attach it to the new map.\n     * Pass `null` to just remove the control from the current map.\n     * Subclasses may set up event handlers to get notified about changes to\n     * the map here.\n     * @param {import(\"../PluggableMap.js\").default|null} map Map.\n     * @api\n     */\n    ZoomSlider.prototype.setMap = function (map) {\n        _super.prototype.setMap.call(this, map);\n        if (map) {\n            map.render();\n        }\n    };\n    /**\n     * Initializes the slider element. This will determine and set this controls\n     * direction_ and also constrain the dragging of the thumb to always be within\n     * the bounds of the container.\n     *\n     * @return {boolean} Initialization successful\n     * @private\n     */\n    ZoomSlider.prototype.initSlider_ = function () {\n        var container = this.element;\n        var containerWidth = container.offsetWidth;\n        var containerHeight = container.offsetHeight;\n        if (containerWidth === 0 && containerHeight === 0) {\n            return (this.sliderInitialized_ = false);\n        }\n        var containerStyle = getComputedStyle(container);\n        containerWidth -=\n            parseFloat(containerStyle['paddingRight']) +\n                parseFloat(containerStyle['paddingLeft']);\n        containerHeight -=\n            parseFloat(containerStyle['paddingTop']) +\n                parseFloat(containerStyle['paddingBottom']);\n        var thumb = /** @type {HTMLElement} */ (container.firstElementChild);\n        var thumbStyle = getComputedStyle(thumb);\n        var thumbWidth = thumb.offsetWidth +\n            parseFloat(thumbStyle['marginRight']) +\n            parseFloat(thumbStyle['marginLeft']);\n        var thumbHeight = thumb.offsetHeight +\n            parseFloat(thumbStyle['marginTop']) +\n            parseFloat(thumbStyle['marginBottom']);\n        this.thumbSize_ = [thumbWidth, thumbHeight];\n        if (containerWidth > containerHeight) {\n            this.direction_ = Direction.HORIZONTAL;\n            this.widthLimit_ = containerWidth - thumbWidth;\n        }\n        else {\n            this.direction_ = Direction.VERTICAL;\n            this.heightLimit_ = containerHeight - thumbHeight;\n        }\n        return (this.sliderInitialized_ = true);\n    };\n    /**\n     * @param {PointerEvent} event The browser event to handle.\n     * @private\n     */\n    ZoomSlider.prototype.handleContainerClick_ = function (event) {\n        var view = this.getMap().getView();\n        var relativePosition = this.getRelativePosition_(event.offsetX - this.thumbSize_[0] / 2, event.offsetY - this.thumbSize_[1] / 2);\n        var resolution = this.getResolutionForPosition_(relativePosition);\n        var zoom = view.getConstrainedZoom(view.getZoomForResolution(resolution));\n        view.animateInternal({\n            zoom: zoom,\n            duration: this.duration_,\n            easing: easeOut,\n        });\n    };\n    /**\n     * Handle dragger start events.\n     * @param {PointerEvent} event The drag event.\n     * @private\n     */\n    ZoomSlider.prototype.handleDraggerStart_ = function (event) {\n        if (!this.dragging_ && event.target === this.element.firstElementChild) {\n            var element = /** @type {HTMLElement} */ (this.element.firstElementChild);\n            this.getMap().getView().beginInteraction();\n            this.startX_ = event.clientX - parseFloat(element.style.left);\n            this.startY_ = event.clientY - parseFloat(element.style.top);\n            this.dragging_ = true;\n            if (this.dragListenerKeys_.length === 0) {\n                var drag = this.handleDraggerDrag_;\n                var end = this.handleDraggerEnd_;\n                var doc = this.getMap().getOwnerDocument();\n                this.dragListenerKeys_.push(listen(doc, PointerEventType.POINTERMOVE, drag, this), listen(doc, PointerEventType.POINTERUP, end, this));\n            }\n        }\n    };\n    /**\n     * Handle dragger drag events.\n     *\n     * @param {PointerEvent} event The drag event.\n     * @private\n     */\n    ZoomSlider.prototype.handleDraggerDrag_ = function (event) {\n        if (this.dragging_) {\n            var deltaX = event.clientX - this.startX_;\n            var deltaY = event.clientY - this.startY_;\n            var relativePosition = this.getRelativePosition_(deltaX, deltaY);\n            this.currentResolution_ =\n                this.getResolutionForPosition_(relativePosition);\n            this.getMap().getView().setResolution(this.currentResolution_);\n        }\n    };\n    /**\n     * Handle dragger end events.\n     * @param {PointerEvent} event The drag event.\n     * @private\n     */\n    ZoomSlider.prototype.handleDraggerEnd_ = function (event) {\n        if (this.dragging_) {\n            var view = this.getMap().getView();\n            view.endInteraction();\n            this.dragging_ = false;\n            this.startX_ = undefined;\n            this.startY_ = undefined;\n            this.dragListenerKeys_.forEach(unlistenByKey);\n            this.dragListenerKeys_.length = 0;\n        }\n    };\n    /**\n     * Positions the thumb inside its container according to the given resolution.\n     *\n     * @param {number} res The res.\n     * @private\n     */\n    ZoomSlider.prototype.setThumbPosition_ = function (res) {\n        var position = this.getPositionForResolution_(res);\n        var thumb = /** @type {HTMLElement} */ (this.element.firstElementChild);\n        if (this.direction_ == Direction.HORIZONTAL) {\n            thumb.style.left = this.widthLimit_ * position + 'px';\n        }\n        else {\n            thumb.style.top = this.heightLimit_ * position + 'px';\n        }\n    };\n    /**\n     * Calculates the relative position of the thumb given x and y offsets.  The\n     * relative position scales from 0 to 1.  The x and y offsets are assumed to be\n     * in pixel units within the dragger limits.\n     *\n     * @param {number} x Pixel position relative to the left of the slider.\n     * @param {number} y Pixel position relative to the top of the slider.\n     * @return {number} The relative position of the thumb.\n     * @private\n     */\n    ZoomSlider.prototype.getRelativePosition_ = function (x, y) {\n        var amount;\n        if (this.direction_ === Direction.HORIZONTAL) {\n            amount = x / this.widthLimit_;\n        }\n        else {\n            amount = y / this.heightLimit_;\n        }\n        return clamp(amount, 0, 1);\n    };\n    /**\n     * Calculates the corresponding resolution of the thumb given its relative\n     * position (where 0 is the minimum and 1 is the maximum).\n     *\n     * @param {number} position The relative position of the thumb.\n     * @return {number} The corresponding resolution.\n     * @private\n     */\n    ZoomSlider.prototype.getResolutionForPosition_ = function (position) {\n        var fn = this.getMap().getView().getResolutionForValueFunction();\n        return fn(1 - position);\n    };\n    /**\n     * Determines the relative position of the slider for the given resolution.  A\n     * relative position of 0 corresponds to the minimum view resolution.  A\n     * relative position of 1 corresponds to the maximum view resolution.\n     *\n     * @param {number} res The resolution.\n     * @return {number} The relative position value (between 0 and 1).\n     * @private\n     */\n    ZoomSlider.prototype.getPositionForResolution_ = function (res) {\n        var fn = this.getMap().getView().getValueForResolutionFunction();\n        return clamp(1 - fn(res), 0, 1);\n    };\n    /**\n     * Update the zoomslider element.\n     * @param {import(\"../MapEvent.js\").default} mapEvent Map event.\n     * @override\n     */\n    ZoomSlider.prototype.render = function (mapEvent) {\n        if (!mapEvent.frameState) {\n            return;\n        }\n        if (!this.sliderInitialized_ && !this.initSlider_()) {\n            return;\n        }\n        var res = mapEvent.frameState.viewState.resolution;\n        this.currentResolution_ = res;\n        this.setThumbPosition_(res);\n    };\n    return ZoomSlider;\n}(Control));\nexport default ZoomSlider;\n//# sourceMappingURL=ZoomSlider.js.map","var __extends = (this && this.__extends) || (function () {\n    var extendStatics = function (d, b) {\n        extendStatics = Object.setPrototypeOf ||\n            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\n            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };\n        return extendStatics(d, b);\n    };\n    return function (d, b) {\n        if (typeof b !== \"function\" && b !== null)\n            throw new TypeError(\"Class extends value \" + String(b) + \" is not a constructor or null\");\n        extendStatics(d, b);\n        function __() { this.constructor = d; }\n        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n    };\n})();\n/**\n * @module ol/control/ZoomToExtent\n */\nimport Control from './Control.js';\nimport EventType from '../events/EventType.js';\nimport { CLASS_CONTROL, CLASS_UNSELECTABLE } from '../css.js';\nimport { fromExtent as polygonFromExtent } from '../geom/Polygon.js';\n/**\n * @typedef {Object} Options\n * @property {string} [className='ol-zoom-extent'] Class name.\n * @property {HTMLElement|string} [target] Specify a target if you want the control\n * to be rendered outside of the map's viewport.\n * @property {string|HTMLElement} [label='E'] Text label to use for the button.\n * Instead of text, also an element (e.g. a `span` element) can be used.\n * @property {string} [tipLabel='Fit to extent'] Text label to use for the button tip.\n * @property {import(\"../extent.js\").Extent} [extent] The extent to zoom to. If undefined the validity\n * extent of the view projection is used.\n */\n/**\n * @classdesc\n * A button control which, when pressed, changes the map view to a specific\n * extent. To style this control use the css selector `.ol-zoom-extent`.\n *\n * @api\n */\nvar ZoomToExtent = /** @class */ (function (_super) {\n    __extends(ZoomToExtent, _super);\n    /**\n     * @param {Options} [opt_options] Options.\n     */\n    function ZoomToExtent(opt_options) {\n        var _this = this;\n        var options = opt_options ? opt_options : {};\n        _this = _super.call(this, {\n            element: document.createElement('div'),\n            target: options.target,\n        }) || this;\n        /**\n         * @type {?import(\"../extent.js\").Extent|null}\n         * @protected\n         */\n        _this.extent = options.extent ? options.extent : null;\n        var className = options.className !== undefined ? options.className : 'ol-zoom-extent';\n        var label = options.label !== undefined ? options.label : 'E';\n        var tipLabel = options.tipLabel !== undefined ? options.tipLabel : 'Fit to extent';\n        var button = document.createElement('button');\n        button.setAttribute('type', 'button');\n        button.title = tipLabel;\n        button.appendChild(typeof label === 'string' ? document.createTextNode(label) : label);\n        button.addEventListener(EventType.CLICK, _this.handleClick_.bind(_this), false);\n        var cssClasses = className + ' ' + CLASS_UNSELECTABLE + ' ' + CLASS_CONTROL;\n        var element = _this.element;\n        element.className = cssClasses;\n        element.appendChild(button);\n        return _this;\n    }\n    /**\n     * @param {MouseEvent} event The event to handle\n     * @private\n     */\n    ZoomToExtent.prototype.handleClick_ = function (event) {\n        event.preventDefault();\n        this.handleZoomToExtent();\n    };\n    /**\n     * @protected\n     */\n    ZoomToExtent.prototype.handleZoomToExtent = function () {\n        var map = this.getMap();\n        var view = map.getView();\n        var extent = !this.extent\n            ? view.getProjection().getExtent()\n            : this.extent;\n        view.fitInternal(polygonFromExtent(extent));\n    };\n    return ZoomToExtent;\n}(Control));\nexport default ZoomToExtent;\n//# sourceMappingURL=ZoomToExtent.js.map","/**\n * @module ol/coordinate\n */\nimport { getWidth } from './extent.js';\nimport { modulo } from './math.js';\nimport { padNumber } from './string.js';\n/**\n * An array of numbers representing an xy coordinate. Example: `[16, 48]`.\n * @typedef {Array<number>} Coordinate\n * @api\n */\n/**\n * A function that takes a {@link module:ol/coordinate~Coordinate} and\n * transforms it into a `{string}`.\n *\n * @typedef {function((Coordinate|undefined)): string} CoordinateFormat\n * @api\n */\n/**\n * Add `delta` to `coordinate`. `coordinate` is modified in place and returned\n * by the function.\n *\n * Example:\n *\n *     import {add} from 'ol/coordinate';\n *\n *     var coord = [7.85, 47.983333];\n *     add(coord, [-2, 4]);\n *     // coord is now [5.85, 51.983333]\n *\n * @param {Coordinate} coordinate Coordinate.\n * @param {Coordinate} delta Delta.\n * @return {Coordinate} The input coordinate adjusted by\n * the given delta.\n * @api\n */\nexport function add(coordinate, delta) {\n    coordinate[0] += +delta[0];\n    coordinate[1] += +delta[1];\n    return coordinate;\n}\n/**\n * Calculates the point closest to the passed coordinate on the passed circle.\n *\n * @param {Coordinate} coordinate The coordinate.\n * @param {import(\"./geom/Circle.js\").default} circle The circle.\n * @return {Coordinate} Closest point on the circumference.\n */\nexport function closestOnCircle(coordinate, circle) {\n    var r = circle.getRadius();\n    var center = circle.getCenter();\n    var x0 = center[0];\n    var y0 = center[1];\n    var x1 = coordinate[0];\n    var y1 = coordinate[1];\n    var dx = x1 - x0;\n    var dy = y1 - y0;\n    if (dx === 0 && dy === 0) {\n        dx = 1;\n    }\n    var d = Math.sqrt(dx * dx + dy * dy);\n    var x = x0 + (r * dx) / d;\n    var y = y0 + (r * dy) / d;\n    return [x, y];\n}\n/**\n * Calculates the point closest to the passed coordinate on the passed segment.\n * This is the foot of the perpendicular of the coordinate to the segment when\n * the foot is on the segment, or the closest segment coordinate when the foot\n * is outside the segment.\n *\n * @param {Coordinate} coordinate The coordinate.\n * @param {Array<Coordinate>} segment The two coordinates\n * of the segment.\n * @return {Coordinate} The foot of the perpendicular of\n * the coordinate to the segment.\n */\nexport function closestOnSegment(coordinate, segment) {\n    var x0 = coordinate[0];\n    var y0 = coordinate[1];\n    var start = segment[0];\n    var end = segment[1];\n    var x1 = start[0];\n    var y1 = start[1];\n    var x2 = end[0];\n    var y2 = end[1];\n    var dx = x2 - x1;\n    var dy = y2 - y1;\n    var along = dx === 0 && dy === 0\n        ? 0\n        : (dx * (x0 - x1) + dy * (y0 - y1)) / (dx * dx + dy * dy || 0);\n    var x, y;\n    if (along <= 0) {\n        x = x1;\n        y = y1;\n    }\n    else if (along >= 1) {\n        x = x2;\n        y = y2;\n    }\n    else {\n        x = x1 + along * dx;\n        y = y1 + along * dy;\n    }\n    return [x, y];\n}\n/**\n * Returns a {@link module:ol/coordinate~CoordinateFormat} function that can be\n * used to format\n * a {Coordinate} to a string.\n *\n * Example without specifying the fractional digits:\n *\n *     import {createStringXY} from 'ol/coordinate';\n *\n *     var coord = [7.85, 47.983333];\n *     var stringifyFunc = createStringXY();\n *     var out = stringifyFunc(coord);\n *     // out is now '8, 48'\n *\n * Example with explicitly specifying 2 fractional digits:\n *\n *     import {createStringXY} from 'ol/coordinate';\n *\n *     var coord = [7.85, 47.983333];\n *     var stringifyFunc = createStringXY(2);\n *     var out = stringifyFunc(coord);\n *     // out is now '7.85, 47.98'\n *\n * @param {number} [opt_fractionDigits] The number of digits to include\n *    after the decimal point. Default is `0`.\n * @return {CoordinateFormat} Coordinate format.\n * @api\n */\nexport function createStringXY(opt_fractionDigits) {\n    return (\n    /**\n     * @param {Coordinate} coordinate Coordinate.\n     * @return {string} String XY.\n     */\n    function (coordinate) {\n        return toStringXY(coordinate, opt_fractionDigits);\n    });\n}\n/**\n * @param {string} hemispheres Hemispheres.\n * @param {number} degrees Degrees.\n * @param {number} [opt_fractionDigits] The number of digits to include\n *    after the decimal point. Default is `0`.\n * @return {string} String.\n */\nexport function degreesToStringHDMS(hemispheres, degrees, opt_fractionDigits) {\n    var normalizedDegrees = modulo(degrees + 180, 360) - 180;\n    var x = Math.abs(3600 * normalizedDegrees);\n    var dflPrecision = opt_fractionDigits || 0;\n    var precision = Math.pow(10, dflPrecision);\n    var deg = Math.floor(x / 3600);\n    var min = Math.floor((x - deg * 3600) / 60);\n    var sec = x - deg * 3600 - min * 60;\n    sec = Math.ceil(sec * precision) / precision;\n    if (sec >= 60) {\n        sec = 0;\n        min += 1;\n    }\n    if (min >= 60) {\n        min = 0;\n        deg += 1;\n    }\n    return (deg +\n        '\\u00b0 ' +\n        padNumber(min, 2) +\n        '\\u2032 ' +\n        padNumber(sec, 2, dflPrecision) +\n        '\\u2033' +\n        (normalizedDegrees == 0\n            ? ''\n            : ' ' + hemispheres.charAt(normalizedDegrees < 0 ? 1 : 0)));\n}\n/**\n * Transforms the given {@link module:ol/coordinate~Coordinate} to a string\n * using the given string template. The strings `{x}` and `{y}` in the template\n * will be replaced with the first and second coordinate values respectively.\n *\n * Example without specifying the fractional digits:\n *\n *     import {format} from 'ol/coordinate';\n *\n *     var coord = [7.85, 47.983333];\n *     var template = 'Coordinate is ({x}|{y}).';\n *     var out = format(coord, template);\n *     // out is now 'Coordinate is (8|48).'\n *\n * Example explicitly specifying the fractional digits:\n *\n *     import {format} from 'ol/coordinate';\n *\n *     var coord = [7.85, 47.983333];\n *     var template = 'Coordinate is ({x}|{y}).';\n *     var out = format(coord, template, 2);\n *     // out is now 'Coordinate is (7.85|47.98).'\n *\n * @param {Coordinate} coordinate Coordinate.\n * @param {string} template A template string with `{x}` and `{y}` placeholders\n *     that will be replaced by first and second coordinate values.\n * @param {number} [opt_fractionDigits] The number of digits to include\n *    after the decimal point. Default is `0`.\n * @return {string} Formatted coordinate.\n * @api\n */\nexport function format(coordinate, template, opt_fractionDigits) {\n    if (coordinate) {\n        return template\n            .replace('{x}', coordinate[0].toFixed(opt_fractionDigits))\n            .replace('{y}', coordinate[1].toFixed(opt_fractionDigits));\n    }\n    else {\n        return '';\n    }\n}\n/**\n * @param {Coordinate} coordinate1 First coordinate.\n * @param {Coordinate} coordinate2 Second coordinate.\n * @return {boolean} The two coordinates are equal.\n */\nexport function equals(coordinate1, coordinate2) {\n    var equals = true;\n    for (var i = coordinate1.length - 1; i >= 0; --i) {\n        if (coordinate1[i] != coordinate2[i]) {\n            equals = false;\n            break;\n        }\n    }\n    return equals;\n}\n/**\n * Rotate `coordinate` by `angle`. `coordinate` is modified in place and\n * returned by the function.\n *\n * Example:\n *\n *     import {rotate} from 'ol/coordinate';\n *\n *     var coord = [7.85, 47.983333];\n *     var rotateRadians = Math.PI / 2; // 90 degrees\n *     rotate(coord, rotateRadians);\n *     // coord is now [-47.983333, 7.85]\n *\n * @param {Coordinate} coordinate Coordinate.\n * @param {number} angle Angle in radian.\n * @return {Coordinate} Coordinate.\n * @api\n */\nexport function rotate(coordinate, angle) {\n    var cosAngle = Math.cos(angle);\n    var sinAngle = Math.sin(angle);\n    var x = coordinate[0] * cosAngle - coordinate[1] * sinAngle;\n    var y = coordinate[1] * cosAngle + coordinate[0] * sinAngle;\n    coordinate[0] = x;\n    coordinate[1] = y;\n    return coordinate;\n}\n/**\n * Scale `coordinate` by `scale`. `coordinate` is modified in place and returned\n * by the function.\n *\n * Example:\n *\n *     import {scale as scaleCoordinate} from 'ol/coordinate';\n *\n *     var coord = [7.85, 47.983333];\n *     var scale = 1.2;\n *     scaleCoordinate(coord, scale);\n *     // coord is now [9.42, 57.5799996]\n *\n * @param {Coordinate} coordinate Coordinate.\n * @param {number} scale Scale factor.\n * @return {Coordinate} Coordinate.\n */\nexport function scale(coordinate, scale) {\n    coordinate[0] *= scale;\n    coordinate[1] *= scale;\n    return coordinate;\n}\n/**\n * @param {Coordinate} coord1 First coordinate.\n * @param {Coordinate} coord2 Second coordinate.\n * @return {number} Squared distance between coord1 and coord2.\n */\nexport function squaredDistance(coord1, coord2) {\n    var dx = coord1[0] - coord2[0];\n    var dy = coord1[1] - coord2[1];\n    return dx * dx + dy * dy;\n}\n/**\n * @param {Coordinate} coord1 First coordinate.\n * @param {Coordinate} coord2 Second coordinate.\n * @return {number} Distance between coord1 and coord2.\n */\nexport function distance(coord1, coord2) {\n    return Math.sqrt(squaredDistance(coord1, coord2));\n}\n/**\n * Calculate the squared distance from a coordinate to a line segment.\n *\n * @param {Coordinate} coordinate Coordinate of the point.\n * @param {Array<Coordinate>} segment Line segment (2\n * coordinates).\n * @return {number} Squared distance from the point to the line segment.\n */\nexport function squaredDistanceToSegment(coordinate, segment) {\n    return squaredDistance(coordinate, closestOnSegment(coordinate, segment));\n}\n/**\n * Format a geographic coordinate with the hemisphere, degrees, minutes, and\n * seconds.\n *\n * Example without specifying fractional digits:\n *\n *     import {toStringHDMS} from 'ol/coordinate';\n *\n *     var coord = [7.85, 47.983333];\n *     var out = toStringHDMS(coord);\n *     // out is now '47° 58′ 60″ N 7° 50′ 60″ E'\n *\n * Example explicitly specifying 1 fractional digit:\n *\n *     import {toStringHDMS} from 'ol/coordinate';\n *\n *     var coord = [7.85, 47.983333];\n *     var out = toStringHDMS(coord, 1);\n *     // out is now '47° 58′ 60.0″ N 7° 50′ 60.0″ E'\n *\n * @param {Coordinate} coordinate Coordinate.\n * @param {number} [opt_fractionDigits] The number of digits to include\n *    after the decimal point. Default is `0`.\n * @return {string} Hemisphere, degrees, minutes and seconds.\n * @api\n */\nexport function toStringHDMS(coordinate, opt_fractionDigits) {\n    if (coordinate) {\n        return (degreesToStringHDMS('NS', coordinate[1], opt_fractionDigits) +\n            ' ' +\n            degreesToStringHDMS('EW', coordinate[0], opt_fractionDigits));\n    }\n    else {\n        return '';\n    }\n}\n/**\n * Format a coordinate as a comma delimited string.\n *\n * Example without specifying fractional digits:\n *\n *     import {toStringXY} from 'ol/coordinate';\n *\n *     var coord = [7.85, 47.983333];\n *     var out = toStringXY(coord);\n *     // out is now '8, 48'\n *\n * Example explicitly specifying 1 fractional digit:\n *\n *     import {toStringXY} from 'ol/coordinate';\n *\n *     var coord = [7.85, 47.983333];\n *     var out = toStringXY(coord, 1);\n *     // out is now '7.8, 48.0'\n *\n * @param {Coordinate} coordinate Coordinate.\n * @param {number} [opt_fractionDigits] The number of digits to include\n *    after the decimal point. Default is `0`.\n * @return {string} XY.\n * @api\n */\nexport function toStringXY(coordinate, opt_fractionDigits) {\n    return format(coordinate, '{x}, {y}', opt_fractionDigits);\n}\n/**\n * Modifies the provided coordinate in-place to be within the real world\n * extent. The lower projection extent boundary is inclusive, the upper one\n * exclusive.\n *\n * @param {Coordinate} coordinate Coordinate.\n * @param {import(\"./proj/Projection.js\").default} projection Projection.\n * @return {Coordinate} The coordinate within the real world extent.\n */\nexport function wrapX(coordinate, projection) {\n    if (projection.canWrapX()) {\n        var worldWidth = getWidth(projection.getExtent());\n        var worldsAway = getWorldsAway(coordinate, projection, worldWidth);\n        if (worldsAway) {\n            coordinate[0] -= worldsAway * worldWidth;\n        }\n    }\n    return coordinate;\n}\n/**\n * @param {Coordinate} coordinate Coordinate.\n * @param {import(\"./proj/Projection.js\").default} projection Projection.\n * @param {number} [opt_sourceExtentWidth] Width of the source extent.\n * @return {number} Offset in world widths.\n */\nexport function getWorldsAway(coordinate, projection, opt_sourceExtentWidth) {\n    var projectionExtent = projection.getExtent();\n    var worldsAway = 0;\n    if (projection.canWrapX() &&\n        (coordinate[0] < projectionExtent[0] || coordinate[0] > projectionExtent[2])) {\n        var sourceExtentWidth = opt_sourceExtentWidth || getWidth(projectionExtent);\n        worldsAway = Math.floor((coordinate[0] - projectionExtent[0]) / sourceExtentWidth);\n    }\n    return worldsAway;\n}\n//# sourceMappingURL=coordinate.js.map","/**\n * @module ol/css\n */\n/**\n * @typedef {Object} FontParameters\n * @property {string} style Style.\n * @property {string} variant Variant.\n * @property {string} weight Weight.\n * @property {string} size Size.\n * @property {string} lineHeight LineHeight.\n * @property {string} family Family.\n * @property {Array<string>} families Families.\n */\n/**\n * The CSS class for hidden feature.\n *\n * @const\n * @type {string}\n */\nexport var CLASS_HIDDEN = 'ol-hidden';\n/**\n * The CSS class that we'll give the DOM elements to have them selectable.\n *\n * @const\n * @type {string}\n */\nexport var CLASS_SELECTABLE = 'ol-selectable';\n/**\n * The CSS class that we'll give the DOM elements to have them unselectable.\n *\n * @const\n * @type {string}\n */\nexport var CLASS_UNSELECTABLE = 'ol-unselectable';\n/**\n * The CSS class for unsupported feature.\n *\n * @const\n * @type {string}\n */\nexport var CLASS_UNSUPPORTED = 'ol-unsupported';\n/**\n * The CSS class for controls.\n *\n * @const\n * @type {string}\n */\nexport var CLASS_CONTROL = 'ol-control';\n/**\n * The CSS class that we'll give the DOM elements that are collapsed, i.e.\n * to those elements which usually can be expanded.\n *\n * @const\n * @type {string}\n */\nexport var CLASS_COLLAPSED = 'ol-collapsed';\n/**\n * From https://stackoverflow.com/questions/10135697/regex-to-parse-any-css-font\n * @type {RegExp}\n */\nvar fontRegEx = new RegExp([\n    '^\\\\s*(?=(?:(?:[-a-z]+\\\\s*){0,2}(italic|oblique))?)',\n    '(?=(?:(?:[-a-z]+\\\\s*){0,2}(small-caps))?)',\n    '(?=(?:(?:[-a-z]+\\\\s*){0,2}(bold(?:er)?|lighter|[1-9]00 ))?)',\n    '(?:(?:normal|\\\\1|\\\\2|\\\\3)\\\\s*){0,3}((?:xx?-)?',\n    '(?:small|large)|medium|smaller|larger|[\\\\.\\\\d]+(?:\\\\%|in|[cem]m|ex|p[ctx]))',\n    '(?:\\\\s*\\\\/\\\\s*(normal|[\\\\.\\\\d]+(?:\\\\%|in|[cem]m|ex|p[ctx])?))',\n    '?\\\\s*([-,\\\\\"\\\\\\'\\\\sa-z]+?)\\\\s*$',\n].join(''), 'i');\nvar fontRegExMatchIndex = [\n    'style',\n    'variant',\n    'weight',\n    'size',\n    'lineHeight',\n    'family',\n];\n/**\n * Get the list of font families from a font spec.  Note that this doesn't work\n * for font families that have commas in them.\n * @param {string} fontSpec The CSS font property.\n * @return {FontParameters|null} The font parameters (or null if the input spec is invalid).\n */\nexport var getFontParameters = function (fontSpec) {\n    var match = fontSpec.match(fontRegEx);\n    if (!match) {\n        return null;\n    }\n    var style = /** @type {FontParameters} */ ({\n        lineHeight: 'normal',\n        size: '1.2em',\n        style: 'normal',\n        weight: 'normal',\n        variant: 'normal',\n    });\n    for (var i = 0, ii = fontRegExMatchIndex.length; i < ii; ++i) {\n        var value = match[i + 1];\n        if (value !== undefined) {\n            style[fontRegExMatchIndex[i]] = value;\n        }\n    }\n    style.families = style.family.split(/,\\s?/);\n    return style;\n};\n//# sourceMappingURL=css.js.map","import { WORKER_OFFSCREEN_CANVAS } from './has.js';\n/**\n * @module ol/dom\n */\n//FIXME Move this function to the canvas module\n/**\n * Create an html canvas element and returns its 2d context.\n * @param {number} [opt_width] Canvas width.\n * @param {number} [opt_height] Canvas height.\n * @param {Array<HTMLCanvasElement>} [opt_canvasPool] Canvas pool to take existing canvas from.\n * @param {CanvasRenderingContext2DSettings} [opt_Context2DSettings] CanvasRenderingContext2DSettings\n * @return {CanvasRenderingContext2D} The context.\n */\nexport function createCanvasContext2D(opt_width, opt_height, opt_canvasPool, opt_Context2DSettings) {\n    /** @type {HTMLCanvasElement|OffscreenCanvas} */\n    var canvas;\n    if (opt_canvasPool && opt_canvasPool.length) {\n        canvas = opt_canvasPool.shift();\n    }\n    else if (WORKER_OFFSCREEN_CANVAS) {\n        canvas = new OffscreenCanvas(opt_width || 300, opt_height || 300);\n    }\n    else {\n        canvas = document.createElement('canvas');\n    }\n    if (opt_width) {\n        canvas.width = opt_width;\n    }\n    if (opt_height) {\n        canvas.height = opt_height;\n    }\n    //FIXME Allow OffscreenCanvasRenderingContext2D as return type\n    return /** @type {CanvasRenderingContext2D} */ (canvas.getContext('2d', opt_Context2DSettings));\n}\n/**\n * Releases canvas memory to avoid exceeding memory limits in Safari.\n * See https://pqina.nl/blog/total-canvas-memory-use-exceeds-the-maximum-limit/\n * @param {CanvasRenderingContext2D} context Context.\n */\nexport function releaseCanvas(context) {\n    var canvas = context.canvas;\n    canvas.width = 1;\n    canvas.height = 1;\n    context.clearRect(0, 0, 1, 1);\n}\n/**\n * Get the current computed width for the given element including margin,\n * padding and border.\n * Equivalent to jQuery's `$(el).outerWidth(true)`.\n * @param {!HTMLElement} element Element.\n * @return {number} The width.\n */\nexport function outerWidth(element) {\n    var width = element.offsetWidth;\n    var style = getComputedStyle(element);\n    width += parseInt(style.marginLeft, 10) + parseInt(style.marginRight, 10);\n    return width;\n}\n/**\n * Get the current computed height for the given element including margin,\n * padding and border.\n * Equivalent to jQuery's `$(el).outerHeight(true)`.\n * @param {!HTMLElement} element Element.\n * @return {number} The height.\n */\nexport function outerHeight(element) {\n    var height = element.offsetHeight;\n    var style = getComputedStyle(element);\n    height += parseInt(style.marginTop, 10) + parseInt(style.marginBottom, 10);\n    return height;\n}\n/**\n * @param {Node} newNode Node to replace old node\n * @param {Node} oldNode The node to be replaced\n */\nexport function replaceNode(newNode, oldNode) {\n    var parent = oldNode.parentNode;\n    if (parent) {\n        parent.replaceChild(newNode, oldNode);\n    }\n}\n/**\n * @param {Node} node The node to remove.\n * @return {Node|null} The node that was removed or null.\n */\nexport function removeNode(node) {\n    return node && node.parentNode ? node.parentNode.removeChild(node) : null;\n}\n/**\n * @param {Node} node The node to remove the children from.\n */\nexport function removeChildren(node) {\n    while (node.lastChild) {\n        node.removeChild(node.lastChild);\n    }\n}\n/**\n * Transform the children of a parent node so they match the\n * provided list of children.  This function aims to efficiently\n * remove, add, and reorder child nodes while maintaining a simple\n * implementation (it is not guaranteed to minimize DOM operations).\n * @param {Node} node The parent node whose children need reworking.\n * @param {Array<Node>} children The desired children.\n */\nexport function replaceChildren(node, children) {\n    var oldChildren = node.childNodes;\n    for (var i = 0; true; ++i) {\n        var oldChild = oldChildren[i];\n        var newChild = children[i];\n        // check if our work is done\n        if (!oldChild && !newChild) {\n            break;\n        }\n        // check if children match\n        if (oldChild === newChild) {\n            continue;\n        }\n        // check if a new child needs to be added\n        if (!oldChild) {\n            node.appendChild(newChild);\n            continue;\n        }\n        // check if an old child needs to be removed\n        if (!newChild) {\n            node.removeChild(oldChild);\n            --i;\n            continue;\n        }\n        // reorder\n        node.insertBefore(newChild, oldChild);\n    }\n}\n//# sourceMappingURL=dom.js.map"],"names":[],"sourceRoot":""}