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__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/AssertionError\n */\nimport { VERSION } from './util.js';\n/**\n * Error object thrown when an assertion failed. This is an ECMA-262 Error,\n * extended with a `code` property.\n * See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Error.\n */\nvar AssertionError = /** @class */ (function (_super) {\n    __extends(AssertionError, _super);\n    /**\n     * @param {number} code Error code.\n     */\n    function AssertionError(code) {\n        var _this = this;\n        var path = VERSION === 'latest' ? VERSION : 'v' + VERSION.split('-')[0];\n        var message = 'Assertion failed. See https://openlayers.org/en/' +\n            path +\n            '/doc/errors/#' +\n            code +\n            ' for details.';\n        _this = _super.call(this, message) || this;\n        /**\n         * Error code. The meaning of the code can be found on\n         * https://openlayers.org/en/latest/doc/errors/ (replace `latest` with\n         * the version found in the OpenLayers script's header comment if a version\n         * other than the latest is used).\n         * @type {number}\n         * @api\n         */\n        _this.code = code;\n        /**\n         * @type {string}\n         */\n        _this.name = 'AssertionError';\n        // Re-assign message, see https://github.com/Rich-Harris/buble/issues/40\n        _this.message = message;\n        return _this;\n    }\n    return AssertionError;\n}(Error));\nexport default AssertionError;\n//# sourceMappingURL=AssertionError.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/Collection\n */\nimport AssertionError from './AssertionError.js';\nimport BaseObject from './Object.js';\nimport CollectionEventType from './CollectionEventType.js';\nimport Event from './events/Event.js';\n/**\n * @enum {string}\n * @private\n */\nvar Property = {\n    LENGTH: 'length',\n};\n/**\n * @classdesc\n * Events emitted by {@link module:ol/Collection~Collection} instances are instances of this\n * type.\n */\nvar CollectionEvent = /** @class */ (function (_super) {\n    __extends(CollectionEvent, _super);\n    /**\n     * @param {import(\"./CollectionEventType.js\").default} type Type.\n     * @param {*} [opt_element] Element.\n     * @param {number} [opt_index] The index of the added or removed element.\n     */\n    function CollectionEvent(type, opt_element, opt_index) {\n        var _this = _super.call(this, type) || this;\n        /**\n         * The element that is added to or removed from the collection.\n         * @type {*}\n         * @api\n         */\n        _this.element = opt_element;\n        /**\n         * The index of the added or removed element.\n         * @type {number}\n         * @api\n         */\n        _this.index = opt_index;\n        return _this;\n    }\n    return CollectionEvent;\n}(Event));\nexport { CollectionEvent };\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|'change:length', import(\"./Object\").ObjectEvent, Return> &\n *   import(\"./Observable\").OnSignature<'add'|'remove', CollectionEvent, Return> &\n *   import(\"./Observable\").CombinedOnSignature<import(\"./Observable\").EventTypes|import(\"./ObjectEventType\").Types|\n *     'change:length'|'add'|'remove',Return>} CollectionOnSignature\n */\n/**\n * @typedef {Object} Options\n * @property {boolean} [unique=false] Disallow the same item from being added to\n * the collection twice.\n */\n/**\n * @classdesc\n * An expanded version of standard JS Array, adding convenience methods for\n * manipulation. Add and remove changes to the Collection trigger a Collection\n * event. Note that this does not cover changes to the objects _within_ the\n * Collection; they trigger events on the appropriate object, not on the\n * Collection as a whole.\n *\n * @fires CollectionEvent\n *\n * @template T\n * @api\n */\nvar Collection = /** @class */ (function (_super) {\n    __extends(Collection, _super);\n    /**\n     * @param {Array<T>} [opt_array] Array.\n     * @param {Options} [opt_options] Collection options.\n     */\n    function Collection(opt_array, opt_options) {\n        var _this = _super.call(this) || this;\n        /***\n         * @type {CollectionOnSignature<import(\"./events\").EventsKey>}\n         */\n        _this.on;\n        /***\n         * @type {CollectionOnSignature<import(\"./events\").EventsKey>}\n         */\n        _this.once;\n        /***\n         * @type {CollectionOnSignature<void>}\n         */\n        _this.un;\n        var options = opt_options || {};\n        /**\n         * @private\n         * @type {boolean}\n         */\n        _this.unique_ = !!options.unique;\n        /**\n         * @private\n         * @type {!Array<T>}\n         */\n        _this.array_ = opt_array ? opt_array : [];\n        if (_this.unique_) {\n            for (var i = 0, ii = _this.array_.length; i < ii; ++i) {\n                _this.assertUnique_(_this.array_[i], i);\n            }\n        }\n        _this.updateLength_();\n        return _this;\n    }\n    /**\n     * Remove all elements from the collection.\n     * @api\n     */\n    Collection.prototype.clear = function () {\n        while (this.getLength() > 0) {\n            this.pop();\n        }\n    };\n    /**\n     * Add elements to the collection.  This pushes each item in the provided array\n     * to the end of the collection.\n     * @param {!Array<T>} arr Array.\n     * @return {Collection<T>} This collection.\n     * @api\n     */\n    Collection.prototype.extend = function (arr) {\n        for (var i = 0, ii = arr.length; i < ii; ++i) {\n            this.push(arr[i]);\n        }\n        return this;\n    };\n    /**\n     * Iterate over each element, calling the provided callback.\n     * @param {function(T, number, Array<T>): *} f The function to call\n     *     for every element. This function takes 3 arguments (the element, the\n     *     index and the array). The return value is ignored.\n     * @api\n     */\n    Collection.prototype.forEach = function (f) {\n        var array = this.array_;\n        for (var i = 0, ii = array.length; i < ii; ++i) {\n            f(array[i], i, array);\n        }\n    };\n    /**\n     * Get a reference to the underlying Array object. Warning: if the array\n     * is mutated, no events will be dispatched by the collection, and the\n     * collection's \"length\" property won't be in sync with the actual length\n     * of the array.\n     * @return {!Array<T>} Array.\n     * @api\n     */\n    Collection.prototype.getArray = function () {\n        return this.array_;\n    };\n    /**\n     * Get the element at the provided index.\n     * @param {number} index Index.\n     * @return {T} Element.\n     * @api\n     */\n    Collection.prototype.item = function (index) {\n        return this.array_[index];\n    };\n    /**\n     * Get the length of this collection.\n     * @return {number} The length of the array.\n     * @observable\n     * @api\n     */\n    Collection.prototype.getLength = function () {\n        return this.get(Property.LENGTH);\n    };\n    /**\n     * Insert an element at the provided index.\n     * @param {number} index Index.\n     * @param {T} elem Element.\n     * @api\n     */\n    Collection.prototype.insertAt = function (index, elem) {\n        if (this.unique_) {\n            this.assertUnique_(elem);\n        }\n        this.array_.splice(index, 0, elem);\n        this.updateLength_();\n        this.dispatchEvent(new CollectionEvent(CollectionEventType.ADD, elem, index));\n    };\n    /**\n     * Remove the last element of the collection and return it.\n     * Return `undefined` if the collection is empty.\n     * @return {T|undefined} Element.\n     * @api\n     */\n    Collection.prototype.pop = function () {\n        return this.removeAt(this.getLength() - 1);\n    };\n    /**\n     * Insert the provided element at the end of the collection.\n     * @param {T} elem Element.\n     * @return {number} New length of the collection.\n     * @api\n     */\n    Collection.prototype.push = function (elem) {\n        if (this.unique_) {\n            this.assertUnique_(elem);\n        }\n        var n = this.getLength();\n        this.insertAt(n, elem);\n        return this.getLength();\n    };\n    /**\n     * Remove the first occurrence of an element from the collection.\n     * @param {T} elem Element.\n     * @return {T|undefined} The removed element or undefined if none found.\n     * @api\n     */\n    Collection.prototype.remove = function (elem) {\n        var arr = this.array_;\n        for (var i = 0, ii = arr.length; i < ii; ++i) {\n            if (arr[i] === elem) {\n                return this.removeAt(i);\n            }\n        }\n        return undefined;\n    };\n    /**\n     * Remove the element at the provided index and return it.\n     * Return `undefined` if the collection does not contain this index.\n     * @param {number} index Index.\n     * @return {T|undefined} Value.\n     * @api\n     */\n    Collection.prototype.removeAt = function (index) {\n        var prev = this.array_[index];\n        this.array_.splice(index, 1);\n        this.updateLength_();\n        this.dispatchEvent(new CollectionEvent(CollectionEventType.REMOVE, prev, index));\n        return prev;\n    };\n    /**\n     * Set the element at the provided index.\n     * @param {number} index Index.\n     * @param {T} elem Element.\n     * @api\n     */\n    Collection.prototype.setAt = function (index, elem) {\n        var n = this.getLength();\n        if (index < n) {\n            if (this.unique_) {\n                this.assertUnique_(elem, index);\n            }\n            var prev = this.array_[index];\n            this.array_[index] = elem;\n            this.dispatchEvent(new CollectionEvent(CollectionEventType.REMOVE, prev, index));\n            this.dispatchEvent(new CollectionEvent(CollectionEventType.ADD, elem, index));\n        }\n        else {\n            for (var j = n; j < index; ++j) {\n                this.insertAt(j, undefined);\n            }\n            this.insertAt(index, elem);\n        }\n    };\n    /**\n     * @private\n     */\n    Collection.prototype.updateLength_ = function () {\n        this.set(Property.LENGTH, this.array_.length);\n    };\n    /**\n     * @private\n     * @param {T} elem Element.\n     * @param {number} [opt_except] Optional index to ignore.\n     */\n    Collection.prototype.assertUnique_ = function (elem, opt_except) {\n        for (var i = 0, ii = this.array_.length; i < ii; ++i) {\n            if (this.array_[i] === elem && i !== opt_except) {\n                throw new AssertionError(58);\n            }\n        }\n    };\n    return Collection;\n}(BaseObject));\nexport default Collection;\n//# sourceMappingURL=Collection.js.map","/**\n * @module ol/CollectionEventType\n */\n/**\n * @enum {string}\n */\nexport default {\n    /**\n     * Triggered when an item is added to the collection.\n     * @event module:ol/Collection.CollectionEvent#add\n     * @api\n     */\n    ADD: 'add',\n    /**\n     * Triggered when an item is removed from the collection.\n     * @event module:ol/Collection.CollectionEvent#remove\n     * @api\n     */\n    REMOVE: 'remove',\n};\n//# sourceMappingURL=CollectionEventType.js.map","/**\n * @module ol/Disposable\n */\n/**\n * @classdesc\n * Objects that need to clean up after themselves.\n */\nvar Disposable = /** @class */ (function () {\n    function Disposable() {\n        /**\n         * The object has already been disposed.\n         * @type {boolean}\n         * @protected\n         */\n        this.disposed = false;\n    }\n    /**\n     * Clean up.\n     */\n    Disposable.prototype.dispose = function () {\n        if (!this.disposed) {\n            this.disposed = true;\n            this.disposeInternal();\n        }\n    };\n    /**\n     * Extension point for disposable objects.\n     * @protected\n     */\n    Disposable.prototype.disposeInternal = function () { };\n    return Disposable;\n}());\nexport default Disposable;\n//# sourceMappingURL=Disposable.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/Feature\n */\nimport BaseObject from './Object.js';\nimport EventType from './events/EventType.js';\nimport { assert } from './asserts.js';\nimport { listen, unlistenByKey } from './events.js';\n/**\n * @typedef {typeof Feature|typeof import(\"./render/Feature.js\").default} FeatureClass\n */\n/**\n * @typedef {Feature|import(\"./render/Feature.js\").default} FeatureLike\n */\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|'change:geometry', import(\"./Object\").ObjectEvent, Return> &\n *   import(\"./Observable\").CombinedOnSignature<import(\"./Observable\").EventTypes|import(\"./ObjectEventType\").Types\n *     |'change:geometry', Return>} FeatureOnSignature\n */\n/***\n * @template Geometry\n * @typedef {Object<string, *> & { geometry?: Geometry }} ObjectWithGeometry\n */\n/**\n * @classdesc\n * A vector object for geographic features with a geometry and other\n * attribute properties, similar to the features in vector file formats like\n * GeoJSON.\n *\n * Features can be styled individually with `setStyle`; otherwise they use the\n * style of their vector layer.\n *\n * Note that attribute properties are set as {@link module:ol/Object~BaseObject} properties on\n * the feature object, so they are observable, and have get/set accessors.\n *\n * Typically, a feature has a single geometry property. You can set the\n * geometry using the `setGeometry` method and get it with `getGeometry`.\n * It is possible to store more than one geometry on a feature using attribute\n * properties. By default, the geometry used for rendering is identified by\n * the property name `geometry`. If you want to use another geometry property\n * for rendering, use the `setGeometryName` method to change the attribute\n * property associated with the geometry for the feature.  For example:\n *\n * ```js\n *\n * import Feature from 'ol/Feature';\n * import Polygon from 'ol/geom/Polygon';\n * import Point from 'ol/geom/Point';\n *\n * var feature = new Feature({\n *   geometry: new Polygon(polyCoords),\n *   labelPoint: new Point(labelCoords),\n *   name: 'My Polygon'\n * });\n *\n * // get the polygon geometry\n * var poly = feature.getGeometry();\n *\n * // Render the feature as a point using the coordinates from labelPoint\n * feature.setGeometryName('labelPoint');\n *\n * // get the point geometry\n * var point = feature.getGeometry();\n * ```\n *\n * @api\n * @template {import(\"./geom/Geometry.js\").default} [Geometry=import(\"./geom/Geometry.js\").default]\n */\nvar Feature = /** @class */ (function (_super) {\n    __extends(Feature, _super);\n    /**\n     * @param {Geometry|ObjectWithGeometry<Geometry>} [opt_geometryOrProperties]\n     *     You may pass a Geometry object directly, or an object literal containing\n     *     properties. If you pass an object literal, you may include a Geometry\n     *     associated with a `geometry` key.\n     */\n    function Feature(opt_geometryOrProperties) {\n        var _this = _super.call(this) || this;\n        /***\n         * @type {FeatureOnSignature<import(\"./events\").EventsKey>}\n         */\n        _this.on;\n        /***\n         * @type {FeatureOnSignature<import(\"./events\").EventsKey>}\n         */\n        _this.once;\n        /***\n         * @type {FeatureOnSignature<void>}\n         */\n        _this.un;\n        /**\n         * @private\n         * @type {number|string|undefined}\n         */\n        _this.id_ = undefined;\n        /**\n         * @type {string}\n         * @private\n         */\n        _this.geometryName_ = 'geometry';\n        /**\n         * User provided style.\n         * @private\n         * @type {import(\"./style/Style.js\").StyleLike}\n         */\n        _this.style_ = null;\n        /**\n         * @private\n         * @type {import(\"./style/Style.js\").StyleFunction|undefined}\n         */\n        _this.styleFunction_ = undefined;\n        /**\n         * @private\n         * @type {?import(\"./events.js\").EventsKey}\n         */\n        _this.geometryChangeKey_ = null;\n        _this.addChangeListener(_this.geometryName_, _this.handleGeometryChanged_);\n        if (opt_geometryOrProperties) {\n            if (typeof (\n            /** @type {?} */ (opt_geometryOrProperties).getSimplifiedGeometry) === 'function') {\n                var geometry = /** @type {Geometry} */ (opt_geometryOrProperties);\n                _this.setGeometry(geometry);\n            }\n            else {\n                /** @type {Object<string, *>} */\n                var properties = opt_geometryOrProperties;\n                _this.setProperties(properties);\n            }\n        }\n        return _this;\n    }\n    /**\n     * Clone this feature. If the original feature has a geometry it\n     * is also cloned. The feature id is not set in the clone.\n     * @return {Feature<Geometry>} The clone.\n     * @api\n     */\n    Feature.prototype.clone = function () {\n        var clone = /** @type {Feature<Geometry>} */ (new Feature(this.hasProperties() ? this.getProperties() : null));\n        clone.setGeometryName(this.getGeometryName());\n        var geometry = this.getGeometry();\n        if (geometry) {\n            clone.setGeometry(/** @type {Geometry} */ (geometry.clone()));\n        }\n        var style = this.getStyle();\n        if (style) {\n            clone.setStyle(style);\n        }\n        return clone;\n    };\n    /**\n     * Get the feature's default geometry.  A feature may have any number of named\n     * geometries.  The \"default\" geometry (the one that is rendered by default) is\n     * set when calling {@link module:ol/Feature~Feature#setGeometry}.\n     * @return {Geometry|undefined} The default geometry for the feature.\n     * @api\n     * @observable\n     */\n    Feature.prototype.getGeometry = function () {\n        return /** @type {Geometry|undefined} */ (this.get(this.geometryName_));\n    };\n    /**\n     * Get the feature identifier.  This is a stable identifier for the feature and\n     * is either set when reading data from a remote source or set explicitly by\n     * calling {@link module:ol/Feature~Feature#setId}.\n     * @return {number|string|undefined} Id.\n     * @api\n     */\n    Feature.prototype.getId = function () {\n        return this.id_;\n    };\n    /**\n     * Get the name of the feature's default geometry.  By default, the default\n     * geometry is named `geometry`.\n     * @return {string} Get the property name associated with the default geometry\n     *     for this feature.\n     * @api\n     */\n    Feature.prototype.getGeometryName = function () {\n        return this.geometryName_;\n    };\n    /**\n     * Get the feature's style. Will return what was provided to the\n     * {@link module:ol/Feature~Feature#setStyle} method.\n     * @return {import(\"./style/Style.js\").StyleLike|undefined} The feature style.\n     * @api\n     */\n    Feature.prototype.getStyle = function () {\n        return this.style_;\n    };\n    /**\n     * Get the feature's style function.\n     * @return {import(\"./style/Style.js\").StyleFunction|undefined} Return a function\n     * representing the current style of this feature.\n     * @api\n     */\n    Feature.prototype.getStyleFunction = function () {\n        return this.styleFunction_;\n    };\n    /**\n     * @private\n     */\n    Feature.prototype.handleGeometryChange_ = function () {\n        this.changed();\n    };\n    /**\n     * @private\n     */\n    Feature.prototype.handleGeometryChanged_ = function () {\n        if (this.geometryChangeKey_) {\n            unlistenByKey(this.geometryChangeKey_);\n            this.geometryChangeKey_ = null;\n        }\n        var geometry = this.getGeometry();\n        if (geometry) {\n            this.geometryChangeKey_ = listen(geometry, EventType.CHANGE, this.handleGeometryChange_, this);\n        }\n        this.changed();\n    };\n    /**\n     * Set the default geometry for the feature.  This will update the property\n     * with the name returned by {@link module:ol/Feature~Feature#getGeometryName}.\n     * @param {Geometry|undefined} geometry The new geometry.\n     * @api\n     * @observable\n     */\n    Feature.prototype.setGeometry = function (geometry) {\n        this.set(this.geometryName_, geometry);\n    };\n    /**\n     * Set the style for the feature to override the layer style.  This can be a\n     * single style object, an array of styles, or a function that takes a\n     * resolution and returns an array of styles. To unset the feature style, call\n     * `setStyle()` without arguments or a falsey value.\n     * @param {import(\"./style/Style.js\").StyleLike} [opt_style] Style for this feature.\n     * @api\n     * @fires module:ol/events/Event~BaseEvent#event:change\n     */\n    Feature.prototype.setStyle = function (opt_style) {\n        this.style_ = opt_style;\n        this.styleFunction_ = !opt_style\n            ? undefined\n            : createStyleFunction(opt_style);\n        this.changed();\n    };\n    /**\n     * Set the feature id.  The feature id is considered stable and may be used when\n     * requesting features or comparing identifiers returned from a remote source.\n     * The feature id can be used with the\n     * {@link module:ol/source/Vector~VectorSource#getFeatureById} method.\n     * @param {number|string|undefined} id The feature id.\n     * @api\n     * @fires module:ol/events/Event~BaseEvent#event:change\n     */\n    Feature.prototype.setId = function (id) {\n        this.id_ = id;\n        this.changed();\n    };\n    /**\n     * Set the property name to be used when getting the feature's default geometry.\n     * When calling {@link module:ol/Feature~Feature#getGeometry}, the value of the property with\n     * this name will be returned.\n     * @param {string} name The property name of the default geometry.\n     * @api\n     */\n    Feature.prototype.setGeometryName = function (name) {\n        this.removeChangeListener(this.geometryName_, this.handleGeometryChanged_);\n        this.geometryName_ = name;\n        this.addChangeListener(this.geometryName_, this.handleGeometryChanged_);\n        this.handleGeometryChanged_();\n    };\n    return Feature;\n}(BaseObject));\n/**\n * Convert the provided object into a feature style function.  Functions passed\n * through unchanged.  Arrays of Style or single style objects wrapped\n * in a new feature style function.\n * @param {!import(\"./style/Style.js\").StyleFunction|!Array<import(\"./style/Style.js\").default>|!import(\"./style/Style.js\").default} obj\n *     A feature style function, a single style, or an array of styles.\n * @return {import(\"./style/Style.js\").StyleFunction} A style function.\n */\nexport function createStyleFunction(obj) {\n    if (typeof obj === 'function') {\n        return obj;\n    }\n    else {\n        /**\n         * @type {Array<import(\"./style/Style.js\").default>}\n         */\n        var styles_1;\n        if (Array.isArray(obj)) {\n            styles_1 = obj;\n        }\n        else {\n            assert(typeof ( /** @type {?} */(obj).getZIndex) === 'function', 41); // Expected an `import(\"./style/Style.js\").Style` or an array of `import(\"./style/Style.js\").Style`\n            var style = /** @type {import(\"./style/Style.js\").default} */ (obj);\n            styles_1 = [style];\n        }\n        return function () {\n            return styles_1;\n        };\n    }\n}\nexport default Feature;\n//# sourceMappingURL=Feature.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/Image\n */\nimport EventType from './events/EventType.js';\nimport ImageBase from './ImageBase.js';\nimport ImageState from './ImageState.js';\nimport { IMAGE_DECODE } from './has.js';\nimport { getHeight } from './extent.js';\nimport { listenOnce, unlistenByKey } from './events.js';\n/**\n * A function that takes an {@link module:ol/Image~ImageWrapper} for the image and a\n * `{string}` for the src as arguments. It is supposed to make it so the\n * underlying image {@link module:ol/Image~ImageWrapper#getImage} is assigned the\n * content specified by the src. If not specified, the default is\n *\n *     function(image, src) {\n *       image.getImage().src = src;\n *     }\n *\n * Providing a custom `imageLoadFunction` can be useful to load images with\n * post requests or - in general - through XHR requests, where the src of the\n * image element would be set to a data URI when the content is loaded.\n *\n * @typedef {function(ImageWrapper, string): void} LoadFunction\n * @api\n */\nvar ImageWrapper = /** @class */ (function (_super) {\n    __extends(ImageWrapper, _super);\n    /**\n     * @param {import(\"./extent.js\").Extent} extent Extent.\n     * @param {number|undefined} resolution Resolution.\n     * @param {number} pixelRatio Pixel ratio.\n     * @param {string} src Image source URI.\n     * @param {?string} crossOrigin Cross origin.\n     * @param {LoadFunction} imageLoadFunction Image load function.\n     */\n    function ImageWrapper(extent, resolution, pixelRatio, src, crossOrigin, imageLoadFunction) {\n        var _this = _super.call(this, extent, resolution, pixelRatio, ImageState.IDLE) || this;\n        /**\n         * @private\n         * @type {string}\n         */\n        _this.src_ = src;\n        /**\n         * @private\n         * @type {HTMLCanvasElement|HTMLImageElement|HTMLVideoElement}\n         */\n        _this.image_ = new Image();\n        if (crossOrigin !== null) {\n            _this.image_.crossOrigin = crossOrigin;\n        }\n        /**\n         * @private\n         * @type {?function():void}\n         */\n        _this.unlisten_ = null;\n        /**\n         * @protected\n         * @type {import(\"./ImageState.js\").default}\n         */\n        _this.state = ImageState.IDLE;\n        /**\n         * @private\n         * @type {LoadFunction}\n         */\n        _this.imageLoadFunction_ = imageLoadFunction;\n        return _this;\n    }\n    /**\n     * @return {HTMLCanvasElement|HTMLImageElement|HTMLVideoElement} Image.\n     * @api\n     */\n    ImageWrapper.prototype.getImage = function () {\n        return this.image_;\n    };\n    /**\n     * Tracks loading or read errors.\n     *\n     * @private\n     */\n    ImageWrapper.prototype.handleImageError_ = function () {\n        this.state = ImageState.ERROR;\n        this.unlistenImage_();\n        this.changed();\n    };\n    /**\n     * Tracks successful image load.\n     *\n     * @private\n     */\n    ImageWrapper.prototype.handleImageLoad_ = function () {\n        if (this.resolution === undefined) {\n            this.resolution = getHeight(this.extent) / this.image_.height;\n        }\n        this.state = ImageState.LOADED;\n        this.unlistenImage_();\n        this.changed();\n    };\n    /**\n     * Load the image or retry if loading previously failed.\n     * Loading is taken care of by the tile queue, and calling this method is\n     * only needed for preloading or for reloading in case of an error.\n     * @api\n     */\n    ImageWrapper.prototype.load = function () {\n        if (this.state == ImageState.IDLE || this.state == ImageState.ERROR) {\n            this.state = ImageState.LOADING;\n            this.changed();\n            this.imageLoadFunction_(this, this.src_);\n            this.unlisten_ = listenImage(this.image_, this.handleImageLoad_.bind(this), this.handleImageError_.bind(this));\n        }\n    };\n    /**\n     * @param {HTMLCanvasElement|HTMLImageElement|HTMLVideoElement} image Image.\n     */\n    ImageWrapper.prototype.setImage = function (image) {\n        this.image_ = image;\n        this.resolution = getHeight(this.extent) / this.image_.height;\n    };\n    /**\n     * Discards event handlers which listen for load completion or errors.\n     *\n     * @private\n     */\n    ImageWrapper.prototype.unlistenImage_ = function () {\n        if (this.unlisten_) {\n            this.unlisten_();\n            this.unlisten_ = null;\n        }\n    };\n    return ImageWrapper;\n}(ImageBase));\n/**\n * @param {HTMLCanvasElement|HTMLImageElement|HTMLVideoElement} image Image element.\n * @param {function():any} loadHandler Load callback function.\n * @param {function():any} errorHandler Error callback function.\n * @return {function():void} Callback to stop listening.\n */\nexport function listenImage(image, loadHandler, errorHandler) {\n    var img = /** @type {HTMLImageElement} */ (image);\n    var listening = true;\n    var decoding = false;\n    var loaded = false;\n    var listenerKeys = [\n        listenOnce(img, EventType.LOAD, function () {\n            loaded = true;\n            if (!decoding) {\n                loadHandler();\n            }\n        }),\n    ];\n    if (img.src && IMAGE_DECODE) {\n        decoding = true;\n        img\n            .decode()\n            .then(function () {\n            if (listening) {\n                loadHandler();\n            }\n        })\n            .catch(function (error) {\n            if (listening) {\n                if (loaded) {\n                    loadHandler();\n                }\n                else {\n                    errorHandler();\n                }\n            }\n        });\n    }\n    else {\n        listenerKeys.push(listenOnce(img, EventType.ERROR, errorHandler));\n    }\n    return function unlisten() {\n        listening = false;\n        listenerKeys.forEach(unlistenByKey);\n    };\n}\nexport default ImageWrapper;\n//# sourceMappingURL=Image.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/ImageBase\n */\nimport EventTarget from './events/Target.js';\nimport EventType from './events/EventType.js';\nimport { abstract } from './util.js';\n/**\n * @abstract\n */\nvar ImageBase = /** @class */ (function (_super) {\n    __extends(ImageBase, _super);\n    /**\n     * @param {import(\"./extent.js\").Extent} extent Extent.\n     * @param {number|undefined} resolution Resolution.\n     * @param {number} pixelRatio Pixel ratio.\n     * @param {import(\"./ImageState.js\").default} state State.\n     */\n    function ImageBase(extent, resolution, pixelRatio, state) {\n        var _this = _super.call(this) || this;\n        /**\n         * @protected\n         * @type {import(\"./extent.js\").Extent}\n         */\n        _this.extent = extent;\n        /**\n         * @private\n         * @type {number}\n         */\n        _this.pixelRatio_ = pixelRatio;\n        /**\n         * @protected\n         * @type {number|undefined}\n         */\n        _this.resolution = resolution;\n        /**\n         * @protected\n         * @type {import(\"./ImageState.js\").default}\n         */\n        _this.state = state;\n        return _this;\n    }\n    /**\n     * @protected\n     */\n    ImageBase.prototype.changed = function () {\n        this.dispatchEvent(EventType.CHANGE);\n    };\n    /**\n     * @return {import(\"./extent.js\").Extent} Extent.\n     */\n    ImageBase.prototype.getExtent = function () {\n        return this.extent;\n    };\n    /**\n     * @abstract\n     * @return {HTMLCanvasElement|HTMLImageElement|HTMLVideoElement} Image.\n     */\n    ImageBase.prototype.getImage = function () {\n        return abstract();\n    };\n    /**\n     * @return {number} PixelRatio.\n     */\n    ImageBase.prototype.getPixelRatio = function () {\n        return this.pixelRatio_;\n    };\n    /**\n     * @return {number} Resolution.\n     */\n    ImageBase.prototype.getResolution = function () {\n        return /** @type {number} */ (this.resolution);\n    };\n    /**\n     * @return {import(\"./ImageState.js\").default} State.\n     */\n    ImageBase.prototype.getState = function () {\n        return this.state;\n    };\n    /**\n     * Load not yet loaded URI.\n     * @abstract\n     */\n    ImageBase.prototype.load = function () {\n        abstract();\n    };\n    return ImageBase;\n}(EventTarget));\nexport default ImageBase;\n//# sourceMappingURL=ImageBase.js.map","/**\n * @module ol/ImageState\n */\n/**\n * @enum {number}\n */\nexport default {\n    IDLE: 0,\n    LOADING: 1,\n    LOADED: 2,\n    ERROR: 3,\n    EMPTY: 4,\n};\n//# sourceMappingURL=ImageState.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/ImageTile\n */\nimport Tile from './Tile.js';\nimport TileState from './TileState.js';\nimport { createCanvasContext2D } from './dom.js';\nimport { listenImage } from './Image.js';\nvar ImageTile = /** @class */ (function (_super) {\n    __extends(ImageTile, _super);\n    /**\n     * @param {import(\"./tilecoord.js\").TileCoord} tileCoord Tile coordinate.\n     * @param {import(\"./TileState.js\").default} state State.\n     * @param {string} src Image source URI.\n     * @param {?string} crossOrigin Cross origin.\n     * @param {import(\"./Tile.js\").LoadFunction} tileLoadFunction Tile load function.\n     * @param {import(\"./Tile.js\").Options} [opt_options] Tile options.\n     */\n    function ImageTile(tileCoord, state, src, crossOrigin, tileLoadFunction, opt_options) {\n        var _this = _super.call(this, tileCoord, state, opt_options) || this;\n        /**\n         * @private\n         * @type {?string}\n         */\n        _this.crossOrigin_ = crossOrigin;\n        /**\n         * Image URI\n         *\n         * @private\n         * @type {string}\n         */\n        _this.src_ = src;\n        _this.key = src;\n        /**\n         * @private\n         * @type {HTMLImageElement|HTMLCanvasElement}\n         */\n        _this.image_ = new Image();\n        if (crossOrigin !== null) {\n            _this.image_.crossOrigin = crossOrigin;\n        }\n        /**\n         * @private\n         * @type {?function():void}\n         */\n        _this.unlisten_ = null;\n        /**\n         * @private\n         * @type {import(\"./Tile.js\").LoadFunction}\n         */\n        _this.tileLoadFunction_ = tileLoadFunction;\n        return _this;\n    }\n    /**\n     * Get the HTML image element for this tile (may be a Canvas, Image, or Video).\n     * @return {HTMLCanvasElement|HTMLImageElement|HTMLVideoElement} Image.\n     * @api\n     */\n    ImageTile.prototype.getImage = function () {\n        return this.image_;\n    };\n    /**\n     * Sets an HTML image element for this tile (may be a Canvas or preloaded Image).\n     * @param {HTMLCanvasElement|HTMLImageElement} element Element.\n     */\n    ImageTile.prototype.setImage = function (element) {\n        this.image_ = element;\n        this.state = TileState.LOADED;\n        this.unlistenImage_();\n        this.changed();\n    };\n    /**\n     * Tracks loading or read errors.\n     *\n     * @private\n     */\n    ImageTile.prototype.handleImageError_ = function () {\n        this.state = TileState.ERROR;\n        this.unlistenImage_();\n        this.image_ = getBlankImage();\n        this.changed();\n    };\n    /**\n     * Tracks successful image load.\n     *\n     * @private\n     */\n    ImageTile.prototype.handleImageLoad_ = function () {\n        var image = /** @type {HTMLImageElement} */ (this.image_);\n        if (image.naturalWidth && image.naturalHeight) {\n            this.state = TileState.LOADED;\n        }\n        else {\n            this.state = TileState.EMPTY;\n        }\n        this.unlistenImage_();\n        this.changed();\n    };\n    /**\n     * Load not yet loaded URI.\n     * @api\n     */\n    ImageTile.prototype.load = function () {\n        if (this.state == TileState.ERROR) {\n            this.state = TileState.IDLE;\n            this.image_ = new Image();\n            if (this.crossOrigin_ !== null) {\n                this.image_.crossOrigin = this.crossOrigin_;\n            }\n        }\n        if (this.state == TileState.IDLE) {\n            this.state = TileState.LOADING;\n            this.changed();\n            this.tileLoadFunction_(this, this.src_);\n            this.unlisten_ = listenImage(this.image_, this.handleImageLoad_.bind(this), this.handleImageError_.bind(this));\n        }\n    };\n    /**\n     * Discards event handlers which listen for load completion or errors.\n     *\n     * @private\n     */\n    ImageTile.prototype.unlistenImage_ = function () {\n        if (this.unlisten_) {\n            this.unlisten_();\n            this.unlisten_ = null;\n        }\n    };\n    return ImageTile;\n}(Tile));\n/**\n * Get a 1-pixel blank image.\n * @return {HTMLCanvasElement} Blank image.\n */\nfunction getBlankImage() {\n    var ctx = createCanvasContext2D(1, 1);\n    ctx.fillStyle = 'rgba(0,0,0,0)';\n    ctx.fillRect(0, 0, 1, 1);\n    return ctx.canvas;\n}\nexport default ImageTile;\n//# sourceMappingURL=ImageTile.js.map","/**\n * @module ol/Kinetic\n */\n/**\n * @classdesc\n * Implementation of inertial deceleration for map movement.\n *\n * @api\n */\nvar Kinetic = /** @class */ (function () {\n    /**\n     * @param {number} decay Rate of decay (must be negative).\n     * @param {number} minVelocity Minimum velocity (pixels/millisecond).\n     * @param {number} delay Delay to consider to calculate the kinetic\n     *     initial values (milliseconds).\n     */\n    function Kinetic(decay, minVelocity, delay) {\n        /**\n         * @private\n         * @type {number}\n         */\n        this.decay_ = decay;\n        /**\n         * @private\n         * @type {number}\n         */\n        this.minVelocity_ = minVelocity;\n        /**\n         * @private\n         * @type {number}\n         */\n        this.delay_ = delay;\n        /**\n         * @private\n         * @type {Array<number>}\n         */\n        this.points_ = [];\n        /**\n         * @private\n         * @type {number}\n         */\n        this.angle_ = 0;\n        /**\n         * @private\n         * @type {number}\n         */\n        this.initialVelocity_ = 0;\n    }\n    /**\n     * FIXME empty description for jsdoc\n     */\n    Kinetic.prototype.begin = function () {\n        this.points_.length = 0;\n        this.angle_ = 0;\n        this.initialVelocity_ = 0;\n    };\n    /**\n     * @param {number} x X.\n     * @param {number} y Y.\n     */\n    Kinetic.prototype.update = function (x, y) {\n        this.points_.push(x, y, Date.now());\n    };\n    /**\n     * @return {boolean} Whether we should do kinetic animation.\n     */\n    Kinetic.prototype.end = function () {\n        if (this.points_.length < 6) {\n            // at least 2 points are required (i.e. there must be at least 6 elements\n            // in the array)\n            return false;\n        }\n        var delay = Date.now() - this.delay_;\n        var lastIndex = this.points_.length - 3;\n        if (this.points_[lastIndex + 2] < delay) {\n            // the last tracked point is too old, which means that the user stopped\n            // panning before releasing the map\n            return false;\n        }\n        // get the first point which still falls into the delay time\n        var firstIndex = lastIndex - 3;\n        while (firstIndex > 0 && this.points_[firstIndex + 2] > delay) {\n            firstIndex -= 3;\n        }\n        var duration = this.points_[lastIndex + 2] - this.points_[firstIndex + 2];\n        // we don't want a duration of 0 (divide by zero)\n        // we also make sure the user panned for a duration of at least one frame\n        // (1/60s) to compute sane displacement values\n        if (duration < 1000 / 60) {\n            return false;\n        }\n        var dx = this.points_[lastIndex] - this.points_[firstIndex];\n        var dy = this.points_[lastIndex + 1] - this.points_[firstIndex + 1];\n        this.angle_ = Math.atan2(dy, dx);\n        this.initialVelocity_ = Math.sqrt(dx * dx + dy * dy) / duration;\n        return this.initialVelocity_ > this.minVelocity_;\n    };\n    /**\n     * @return {number} Total distance travelled (pixels).\n     */\n    Kinetic.prototype.getDistance = function () {\n        return (this.minVelocity_ - this.initialVelocity_) / this.decay_;\n    };\n    /**\n     * @return {number} Angle of the kinetic panning animation (radians).\n     */\n    Kinetic.prototype.getAngle = function () {\n        return this.angle_;\n    };\n    return Kinetic;\n}());\nexport default Kinetic;\n//# sourceMappingURL=Kinetic.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/MapBrowserEvent\n */\nimport MapEvent from './MapEvent.js';\n/**\n * @classdesc\n * Events emitted as map browser events are instances of this type.\n * See {@link module:ol/PluggableMap~PluggableMap} for which events trigger a map browser event.\n * @template {UIEvent} EVENT\n */\nvar MapBrowserEvent = /** @class */ (function (_super) {\n    __extends(MapBrowserEvent, _super);\n    /**\n     * @param {string} type Event type.\n     * @param {import(\"./PluggableMap.js\").default} map Map.\n     * @param {EVENT} originalEvent Original event.\n     * @param {boolean} [opt_dragging] Is the map currently being dragged?\n     * @param {import(\"./PluggableMap.js\").FrameState} [opt_frameState] Frame state.\n     * @param {Array<PointerEvent>} [opt_activePointers] Active pointers.\n     */\n    function MapBrowserEvent(type, map, originalEvent, opt_dragging, opt_frameState, opt_activePointers) {\n        var _this = _super.call(this, type, map, opt_frameState) || this;\n        /**\n         * The original browser event.\n         * @const\n         * @type {EVENT}\n         * @api\n         */\n        _this.originalEvent = originalEvent;\n        /**\n         * The map pixel relative to the viewport corresponding to the original browser event.\n         * @type {?import(\"./pixel.js\").Pixel}\n         */\n        _this.pixel_ = null;\n        /**\n         * The coordinate in the user projection corresponding to the original browser event.\n         * @type {?import(\"./coordinate.js\").Coordinate}\n         */\n        _this.coordinate_ = null;\n        /**\n         * Indicates if the map is currently being dragged. Only set for\n         * `POINTERDRAG` and `POINTERMOVE` events. Default is `false`.\n         *\n         * @type {boolean}\n         * @api\n         */\n        _this.dragging = opt_dragging !== undefined ? opt_dragging : false;\n        /**\n         * @type {Array<PointerEvent>|undefined}\n         */\n        _this.activePointers = opt_activePointers;\n        return _this;\n    }\n    Object.defineProperty(MapBrowserEvent.prototype, \"pixel\", {\n        /**\n         * The map pixel relative to the viewport corresponding to the original event.\n         * @type {import(\"./pixel.js\").Pixel}\n         * @api\n         */\n        get: function () {\n            if (!this.pixel_) {\n                this.pixel_ = this.map.getEventPixel(this.originalEvent);\n            }\n            return this.pixel_;\n        },\n        set: function (pixel) {\n            this.pixel_ = pixel;\n        },\n        enumerable: false,\n        configurable: true\n    });\n    Object.defineProperty(MapBrowserEvent.prototype, \"coordinate\", {\n        /**\n         * The coordinate corresponding to the original browser event.  This will be in the user\n         * projection if one is set.  Otherwise it will be in the view projection.\n         * @type {import(\"./coordinate.js\").Coordinate}\n         * @api\n         */\n        get: function () {\n            if (!this.coordinate_) {\n                this.coordinate_ = this.map.getCoordinateFromPixel(this.pixel);\n            }\n            return this.coordinate_;\n        },\n        set: function (coordinate) {\n            this.coordinate_ = coordinate;\n        },\n        enumerable: false,\n        configurable: true\n    });\n    /**\n     * Prevents the default browser action.\n     * See https://developer.mozilla.org/en-US/docs/Web/API/event.preventDefault.\n     * @api\n     */\n    MapBrowserEvent.prototype.preventDefault = function () {\n        _super.prototype.preventDefault.call(this);\n        if ('preventDefault' in this.originalEvent) {\n            /** @type {UIEvent} */ (this.originalEvent).preventDefault();\n        }\n    };\n    /**\n     * Prevents further propagation of the current event.\n     * See https://developer.mozilla.org/en-US/docs/Web/API/event.stopPropagation.\n     * @api\n     */\n    MapBrowserEvent.prototype.stopPropagation = function () {\n        _super.prototype.stopPropagation.call(this);\n        if ('stopPropagation' in this.originalEvent) {\n            /** @type {UIEvent} */ (this.originalEvent).stopPropagation();\n        }\n    };\n    return MapBrowserEvent;\n}(MapEvent));\nexport default MapBrowserEvent;\n//# sourceMappingURL=MapBrowserEvent.js.map","/**\n * @module ol/MapBrowserEventHandler\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 EventType from './events/EventType.js';\nimport MapBrowserEvent from './MapBrowserEvent.js';\nimport MapBrowserEventType from './MapBrowserEventType.js';\nimport PointerEventType from './pointer/EventType.js';\nimport Target from './events/Target.js';\nimport { PASSIVE_EVENT_LISTENERS } from './has.js';\nimport { VOID } from './functions.js';\nimport { getValues } from './obj.js';\nimport { listen, unlistenByKey } from './events.js';\nvar MapBrowserEventHandler = /** @class */ (function (_super) {\n    __extends(MapBrowserEventHandler, _super);\n    /**\n     * @param {import(\"./PluggableMap.js\").default} map The map with the viewport to listen to events on.\n     * @param {number} [moveTolerance] The minimal distance the pointer must travel to trigger a move.\n     */\n    function MapBrowserEventHandler(map, moveTolerance) {\n        var _this = _super.call(this, map) || this;\n        /**\n         * This is the element that we will listen to the real events on.\n         * @type {import(\"./PluggableMap.js\").default}\n         * @private\n         */\n        _this.map_ = map;\n        /**\n         * @type {any}\n         * @private\n         */\n        _this.clickTimeoutId_;\n        /**\n         * Emulate dblclick and singleclick. Will be true when only one pointer is active.\n         * @type {boolean}\n         */\n        _this.emulateClicks_ = false;\n        /**\n         * @type {boolean}\n         * @private\n         */\n        _this.dragging_ = false;\n        /**\n         * @type {!Array<import(\"./events.js\").EventsKey>}\n         * @private\n         */\n        _this.dragListenerKeys_ = [];\n        /**\n         * @type {number}\n         * @private\n         */\n        _this.moveTolerance_ = moveTolerance === undefined ? 1 : moveTolerance;\n        /**\n         * The most recent \"down\" type event (or null if none have occurred).\n         * Set on pointerdown.\n         * @type {PointerEvent|null}\n         * @private\n         */\n        _this.down_ = null;\n        var element = _this.map_.getViewport();\n        /**\n         * @type {Array<PointerEvent>}\n         * @private\n         */\n        _this.activePointers_ = [];\n        /**\n         * @type {!Object<number, Event>}\n         * @private\n         */\n        _this.trackedTouches_ = {};\n        _this.element_ = element;\n        /**\n         * @type {?import(\"./events.js\").EventsKey}\n         * @private\n         */\n        _this.pointerdownListenerKey_ = listen(element, PointerEventType.POINTERDOWN, _this.handlePointerDown_, _this);\n        /**\n         * @type {PointerEvent}\n         * @private\n         */\n        _this.originalPointerMoveEvent_;\n        /**\n         * @type {?import(\"./events.js\").EventsKey}\n         * @private\n         */\n        _this.relayedListenerKey_ = listen(element, PointerEventType.POINTERMOVE, _this.relayMoveEvent_, _this);\n        /**\n         * @private\n         */\n        _this.boundHandleTouchMove_ = _this.handleTouchMove_.bind(_this);\n        _this.element_.addEventListener(EventType.TOUCHMOVE, _this.boundHandleTouchMove_, PASSIVE_EVENT_LISTENERS ? { passive: false } : false);\n        return _this;\n    }\n    /**\n     * @param {PointerEvent} pointerEvent Pointer\n     * event.\n     * @private\n     */\n    MapBrowserEventHandler.prototype.emulateClick_ = function (pointerEvent) {\n        var newEvent = new MapBrowserEvent(MapBrowserEventType.CLICK, this.map_, pointerEvent);\n        this.dispatchEvent(newEvent);\n        if (this.clickTimeoutId_ !== undefined) {\n            // double-click\n            clearTimeout(this.clickTimeoutId_);\n            this.clickTimeoutId_ = undefined;\n            newEvent = new MapBrowserEvent(MapBrowserEventType.DBLCLICK, this.map_, pointerEvent);\n            this.dispatchEvent(newEvent);\n        }\n        else {\n            // click\n            this.clickTimeoutId_ = setTimeout(\n            /** @this {MapBrowserEventHandler} */\n            function () {\n                this.clickTimeoutId_ = undefined;\n                var newEvent = new MapBrowserEvent(MapBrowserEventType.SINGLECLICK, this.map_, pointerEvent);\n                this.dispatchEvent(newEvent);\n            }.bind(this), 250);\n        }\n    };\n    /**\n     * Keeps track on how many pointers are currently active.\n     *\n     * @param {PointerEvent} pointerEvent Pointer\n     * event.\n     * @private\n     */\n    MapBrowserEventHandler.prototype.updateActivePointers_ = function (pointerEvent) {\n        var event = pointerEvent;\n        var id = event.pointerId;\n        if (event.type == MapBrowserEventType.POINTERUP ||\n            event.type == MapBrowserEventType.POINTERCANCEL) {\n            delete this.trackedTouches_[id];\n            for (var pointerId in this.trackedTouches_) {\n                if (this.trackedTouches_[pointerId].target !== event.target) {\n                    // Some platforms assign a new pointerId when the target changes.\n                    // If this happens, delete one tracked pointer. If there is more\n                    // than one tracked pointer for the old target, it will be cleared\n                    // by subsequent POINTERUP events from other pointers.\n                    delete this.trackedTouches_[pointerId];\n                    break;\n                }\n            }\n        }\n        else if (event.type == MapBrowserEventType.POINTERDOWN ||\n            event.type == MapBrowserEventType.POINTERMOVE) {\n            this.trackedTouches_[id] = event;\n        }\n        this.activePointers_ = getValues(this.trackedTouches_);\n    };\n    /**\n     * @param {PointerEvent} pointerEvent Pointer\n     * event.\n     * @private\n     */\n    MapBrowserEventHandler.prototype.handlePointerUp_ = function (pointerEvent) {\n        this.updateActivePointers_(pointerEvent);\n        var newEvent = new MapBrowserEvent(MapBrowserEventType.POINTERUP, this.map_, pointerEvent, undefined, undefined, this.activePointers_);\n        this.dispatchEvent(newEvent);\n        // We emulate click events on left mouse button click, touch contact, and pen\n        // contact. isMouseActionButton returns true in these cases (evt.button is set\n        // to 0).\n        // See http://www.w3.org/TR/pointerevents/#button-states\n        // We only fire click, singleclick, and doubleclick if nobody has called\n        // event.preventDefault().\n        if (this.emulateClicks_ &&\n            !newEvent.defaultPrevented &&\n            !this.dragging_ &&\n            this.isMouseActionButton_(pointerEvent)) {\n            this.emulateClick_(this.down_);\n        }\n        if (this.activePointers_.length === 0) {\n            this.dragListenerKeys_.forEach(unlistenByKey);\n            this.dragListenerKeys_.length = 0;\n            this.dragging_ = false;\n            this.down_ = null;\n        }\n    };\n    /**\n     * @param {PointerEvent} pointerEvent Pointer\n     * event.\n     * @return {boolean} If the left mouse button was pressed.\n     * @private\n     */\n    MapBrowserEventHandler.prototype.isMouseActionButton_ = function (pointerEvent) {\n        return pointerEvent.button === 0;\n    };\n    /**\n     * @param {PointerEvent} pointerEvent Pointer\n     * event.\n     * @private\n     */\n    MapBrowserEventHandler.prototype.handlePointerDown_ = function (pointerEvent) {\n        this.emulateClicks_ = this.activePointers_.length === 0;\n        this.updateActivePointers_(pointerEvent);\n        var newEvent = new MapBrowserEvent(MapBrowserEventType.POINTERDOWN, this.map_, pointerEvent, undefined, undefined, this.activePointers_);\n        this.dispatchEvent(newEvent);\n        // Store a copy of the down event\n        this.down_ = /** @type {PointerEvent} */ ({});\n        for (var property in pointerEvent) {\n            var value = pointerEvent[property];\n            this.down_[property] = typeof value === 'function' ? VOID : value;\n        }\n        if (this.dragListenerKeys_.length === 0) {\n            var doc = this.map_.getOwnerDocument();\n            this.dragListenerKeys_.push(listen(doc, MapBrowserEventType.POINTERMOVE, this.handlePointerMove_, this), listen(doc, MapBrowserEventType.POINTERUP, this.handlePointerUp_, this), \n            /* Note that the listener for `pointercancel is set up on\n             * `pointerEventHandler_` and not `documentPointerEventHandler_` like\n             * the `pointerup` and `pointermove` listeners.\n             *\n             * The reason for this is the following: `TouchSource.vacuumTouches_()`\n             * issues `pointercancel` events, when there was no `touchend` for a\n             * `touchstart`. Now, let's say a first `touchstart` is registered on\n             * `pointerEventHandler_`. The `documentPointerEventHandler_` is set up.\n             * But `documentPointerEventHandler_` doesn't know about the first\n             * `touchstart`. If there is no `touchend` for the `touchstart`, we can\n             * only receive a `touchcancel` from `pointerEventHandler_`, because it is\n             * only registered there.\n             */\n            listen(this.element_, MapBrowserEventType.POINTERCANCEL, this.handlePointerUp_, this));\n            if (this.element_.getRootNode && this.element_.getRootNode() !== doc) {\n                this.dragListenerKeys_.push(listen(this.element_.getRootNode(), MapBrowserEventType.POINTERUP, this.handlePointerUp_, this));\n            }\n        }\n    };\n    /**\n     * @param {PointerEvent} pointerEvent Pointer\n     * event.\n     * @private\n     */\n    MapBrowserEventHandler.prototype.handlePointerMove_ = function (pointerEvent) {\n        // Between pointerdown and pointerup, pointermove events are triggered.\n        // To avoid a 'false' touchmove event to be dispatched, we test if the pointer\n        // moved a significant distance.\n        if (this.isMoving_(pointerEvent)) {\n            this.updateActivePointers_(pointerEvent);\n            this.dragging_ = true;\n            var newEvent = new MapBrowserEvent(MapBrowserEventType.POINTERDRAG, this.map_, pointerEvent, this.dragging_, undefined, this.activePointers_);\n            this.dispatchEvent(newEvent);\n        }\n    };\n    /**\n     * Wrap and relay a pointermove event.\n     * @param {PointerEvent} pointerEvent Pointer\n     * event.\n     * @private\n     */\n    MapBrowserEventHandler.prototype.relayMoveEvent_ = function (pointerEvent) {\n        this.originalPointerMoveEvent_ = pointerEvent;\n        var dragging = !!(this.down_ && this.isMoving_(pointerEvent));\n        this.dispatchEvent(new MapBrowserEvent(MapBrowserEventType.POINTERMOVE, this.map_, pointerEvent, dragging));\n    };\n    /**\n     * Flexible handling of a `touch-action: none` css equivalent: because calling\n     * `preventDefault()` on a `pointermove` event does not stop native page scrolling\n     * and zooming, we also listen for `touchmove` and call `preventDefault()` on it\n     * when an interaction (currently `DragPan` handles the event.\n     * @param {TouchEvent} event Event.\n     * @private\n     */\n    MapBrowserEventHandler.prototype.handleTouchMove_ = function (event) {\n        // Due to https://github.com/mpizenberg/elm-pep/issues/2, `this.originalPointerMoveEvent_`\n        // may not be initialized yet when we get here on a platform without native pointer events.\n        var originalEvent = this.originalPointerMoveEvent_;\n        if ((!originalEvent || originalEvent.defaultPrevented) &&\n            (typeof event.cancelable !== 'boolean' || event.cancelable === true)) {\n            event.preventDefault();\n        }\n    };\n    /**\n     * @param {PointerEvent} pointerEvent Pointer\n     * event.\n     * @return {boolean} Is moving.\n     * @private\n     */\n    MapBrowserEventHandler.prototype.isMoving_ = function (pointerEvent) {\n        return (this.dragging_ ||\n            Math.abs(pointerEvent.clientX - this.down_.clientX) >\n                this.moveTolerance_ ||\n            Math.abs(pointerEvent.clientY - this.down_.clientY) > this.moveTolerance_);\n    };\n    /**\n     * Clean up.\n     */\n    MapBrowserEventHandler.prototype.disposeInternal = function () {\n        if (this.relayedListenerKey_) {\n            unlistenByKey(this.relayedListenerKey_);\n            this.relayedListenerKey_ = null;\n        }\n        this.element_.removeEventListener(EventType.TOUCHMOVE, this.boundHandleTouchMove_);\n        if (this.pointerdownListenerKey_) {\n            unlistenByKey(this.pointerdownListenerKey_);\n            this.pointerdownListenerKey_ = null;\n        }\n        this.dragListenerKeys_.forEach(unlistenByKey);\n        this.dragListenerKeys_.length = 0;\n        this.element_ = null;\n        _super.prototype.disposeInternal.call(this);\n    };\n    return MapBrowserEventHandler;\n}(Target));\nexport default MapBrowserEventHandler;\n//# sourceMappingURL=MapBrowserEventHandler.js.map","/**\n * @module ol/MapBrowserEventType\n */\nimport EventType from './events/EventType.js';\n/**\n * Constants for event names.\n * @enum {string}\n */\nexport default {\n    /**\n     * A true single click with no dragging and no double click. Note that this\n     * event is delayed by 250 ms to ensure that it is not a double click.\n     * @event module:ol/MapBrowserEvent~MapBrowserEvent#singleclick\n     * @api\n     */\n    SINGLECLICK: 'singleclick',\n    /**\n     * A click with no dragging. A double click will fire two of this.\n     * @event module:ol/MapBrowserEvent~MapBrowserEvent#click\n     * @api\n     */\n    CLICK: EventType.CLICK,\n    /**\n     * A true double click, with no dragging.\n     * @event module:ol/MapBrowserEvent~MapBrowserEvent#dblclick\n     * @api\n     */\n    DBLCLICK: EventType.DBLCLICK,\n    /**\n     * Triggered when a pointer is dragged.\n     * @event module:ol/MapBrowserEvent~MapBrowserEvent#pointerdrag\n     * @api\n     */\n    POINTERDRAG: 'pointerdrag',\n    /**\n     * Triggered when a pointer is moved. Note that on touch devices this is\n     * triggered when the map is panned, so is not the same as mousemove.\n     * @event module:ol/MapBrowserEvent~MapBrowserEvent#pointermove\n     * @api\n     */\n    POINTERMOVE: 'pointermove',\n    POINTERDOWN: 'pointerdown',\n    POINTERUP: 'pointerup',\n    POINTEROVER: 'pointerover',\n    POINTEROUT: 'pointerout',\n    POINTERENTER: 'pointerenter',\n    POINTERLEAVE: 'pointerleave',\n    POINTERCANCEL: 'pointercancel',\n};\n/***\n * @typedef {'singleclick'|'click'|'dblclick'|'pointerdrag'|'pointermove'} Types\n */\n//# sourceMappingURL=MapBrowserEventType.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/MapEvent\n */\nimport Event from './events/Event.js';\n/**\n * @classdesc\n * Events emitted as map events are instances of this type.\n * See {@link module:ol/PluggableMap~PluggableMap} for which events trigger a map event.\n */\nvar MapEvent = /** @class */ (function (_super) {\n    __extends(MapEvent, _super);\n    /**\n     * @param {string} type Event type.\n     * @param {import(\"./PluggableMap.js\").default} map Map.\n     * @param {?import(\"./PluggableMap.js\").FrameState} [opt_frameState] Frame state.\n     */\n    function MapEvent(type, map, opt_frameState) {\n        var _this = _super.call(this, type) || this;\n        /**\n         * The map where the event occurred.\n         * @type {import(\"./PluggableMap.js\").default}\n         * @api\n         */\n        _this.map = map;\n        /**\n         * The frame state at the time of the event.\n         * @type {?import(\"./PluggableMap.js\").FrameState}\n         * @api\n         */\n        _this.frameState = opt_frameState !== undefined ? opt_frameState : null;\n        return _this;\n    }\n    return MapEvent;\n}(Event));\nexport default MapEvent;\n//# sourceMappingURL=MapEvent.js.map","/**\n * @module ol/MapEventType\n */\n/**\n * @enum {string}\n */\nexport default {\n    /**\n     * Triggered after a map frame is rendered.\n     * @event module:ol/MapEvent~MapEvent#postrender\n     * @api\n     */\n    POSTRENDER: 'postrender',\n    /**\n     * Triggered when the map starts moving.\n     * @event module:ol/MapEvent~MapEvent#movestart\n     * @api\n     */\n    MOVESTART: 'movestart',\n    /**\n     * Triggered after the map is moved.\n     * @event module:ol/MapEvent~MapEvent#moveend\n     * @api\n     */\n    MOVEEND: 'moveend',\n    /**\n     * Triggered when loading of additional map data (tiles, images, features) starts.\n     * @event module:ol/MapEvent~MapEvent#loadstart\n     * @api\n     */\n    LOADSTART: 'loadstart',\n    /**\n     * Triggered when loading of additional map data has completed.\n     * @event module:ol/MapEvent~MapEvent#loadend\n     * @api\n     */\n    LOADEND: 'loadend',\n};\n/***\n * @typedef {'postrender'|'movestart'|'moveend'|'loadstart'|'loadend'} Types\n */\n//# sourceMappingURL=MapEventType.js.map","/**\n * @module ol/MapProperty\n */\n/**\n * @enum {string}\n */\nexport default {\n    LAYERGROUP: 'layergroup',\n    SIZE: 'size',\n    TARGET: 'target',\n    VIEW: 'view',\n};\n//# sourceMappingURL=MapProperty.js.map"],"names":[],"sourceRoot":""}