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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/Map\n */\nimport CompositeMapRenderer from './renderer/Composite.js';\nimport PluggableMap from './PluggableMap.js';\nimport { assign } from './obj.js';\nimport { defaults as defaultControls } from './control.js';\nimport { defaults as defaultInteractions } from './interaction.js';\n/**\n * @classdesc\n * The map is the core component of OpenLayers. For a map to render, a view,\n * one or more layers, and a target container are needed:\n *\n *     import Map from 'ol/Map';\n *     import View from 'ol/View';\n *     import TileLayer from 'ol/layer/Tile';\n *     import OSM from 'ol/source/OSM';\n *\n *     var map = new Map({\n *       view: new View({\n *         center: [0, 0],\n *         zoom: 1\n *       }),\n *       layers: [\n *         new TileLayer({\n *           source: new OSM()\n *         })\n *       ],\n *       target: 'map'\n *     });\n *\n * The above snippet creates a map using a {@link module:ol/layer/Tile~TileLayer} to\n * display {@link module:ol/source/OSM~OSM} OSM data and render it to a DOM\n * element with the id `map`.\n *\n * The constructor places a viewport container (with CSS class name\n * `ol-viewport`) in the target element (see `getViewport()`), and then two\n * further elements within the viewport: one with CSS class name\n * `ol-overlaycontainer-stopevent` for controls and some overlays, and one with\n * CSS class name `ol-overlaycontainer` for other overlays (see the `stopEvent`\n * option of {@link module:ol/Overlay~Overlay} for the difference). The map\n * itself is placed in a further element within the viewport.\n *\n * Layers are stored as a {@link module:ol/Collection~Collection} in\n * layerGroups. A top-level group is provided by the library. This is what is\n * accessed by `getLayerGroup` and `setLayerGroup`. Layers entered in the\n * options are added to this group, and `addLayer` and `removeLayer` change the\n * layer collection in the group. `getLayers` is a convenience function for\n * `getLayerGroup().getLayers()`. Note that {@link module:ol/layer/Group~LayerGroup}\n * is a subclass of {@link module:ol/layer/Base~BaseLayer}, so layers entered in the\n * options or added with `addLayer` can be groups, which can contain further\n * groups, and so on.\n *\n * @api\n */\nvar Map = /** @class */ (function (_super) {\n    __extends(Map, _super);\n    /**\n     * @param {import(\"./PluggableMap.js\").MapOptions} options Map options.\n     */\n    function Map(options) {\n        options = assign({}, options);\n        if (!options.controls) {\n            options.controls = defaultControls();\n        }\n        if (!options.interactions) {\n            options.interactions = defaultInteractions({\n                onFocusOnly: true,\n            });\n        }\n        return _super.call(this, options) || this;\n    }\n    Map.prototype.createRenderer = function () {\n        return new CompositeMapRenderer(this);\n    };\n    return Map;\n}(PluggableMap));\nexport default Map;\n//# sourceMappingURL=Map.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/Object\n */\nimport Event from './events/Event.js';\nimport ObjectEventType from './ObjectEventType.js';\nimport Observable from './Observable.js';\nimport { assign, isEmpty } from './obj.js';\nimport { getUid } from './util.js';\n/**\n * @classdesc\n * Events emitted by {@link module:ol/Object~BaseObject} instances are instances of this type.\n */\nvar ObjectEvent = /** @class */ (function (_super) {\n    __extends(ObjectEvent, _super);\n    /**\n     * @param {string} type The event type.\n     * @param {string} key The property name.\n     * @param {*} oldValue The old value for `key`.\n     */\n    function ObjectEvent(type, key, oldValue) {\n        var _this = _super.call(this, type) || this;\n        /**\n         * The name of the property whose value is changing.\n         * @type {string}\n         * @api\n         */\n        _this.key = key;\n        /**\n         * The old value. To get the new value use `e.target.get(e.key)` where\n         * `e` is the event object.\n         * @type {*}\n         * @api\n         */\n        _this.oldValue = oldValue;\n        return _this;\n    }\n    return ObjectEvent;\n}(Event));\nexport { ObjectEvent };\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, ObjectEvent, Return> &\n *    import(\"./Observable\").CombinedOnSignature<import(\"./Observable\").EventTypes|import(\"./ObjectEventType\").Types, Return>} ObjectOnSignature\n */\n/**\n * @classdesc\n * Abstract base class; normally only used for creating subclasses and not\n * instantiated in apps.\n * Most non-trivial classes inherit from this.\n *\n * This extends {@link module:ol/Observable~Observable} with observable\n * properties, where each property is observable as well as the object as a\n * whole.\n *\n * Classes that inherit from this have pre-defined properties, to which you can\n * add your owns. The pre-defined properties are listed in this documentation as\n * 'Observable Properties', and have their own accessors; for example,\n * {@link module:ol/Map~Map} has a `target` property, accessed with\n * `getTarget()` and changed with `setTarget()`. Not all properties are however\n * settable. There are also general-purpose accessors `get()` and `set()`. For\n * example, `get('target')` is equivalent to `getTarget()`.\n *\n * The `set` accessors trigger a change event, and you can monitor this by\n * registering a listener. For example, {@link module:ol/View~View} has a\n * `center` property, so `view.on('change:center', function(evt) {...});` would\n * call the function whenever the value of the center property changes. Within\n * the function, `evt.target` would be the view, so `evt.target.getCenter()`\n * would return the new center.\n *\n * You can add your own observable properties with\n * `object.set('prop', 'value')`, and retrieve that with `object.get('prop')`.\n * You can listen for changes on that property value with\n * `object.on('change:prop', listener)`. You can get a list of all\n * properties with {@link module:ol/Object~BaseObject#getProperties}.\n *\n * Note that the observable properties are separate from standard JS properties.\n * You can, for example, give your map object a title with\n * `map.title='New title'` and with `map.set('title', 'Another title')`. The\n * first will be a `hasOwnProperty`; the second will appear in\n * `getProperties()`. Only the second is observable.\n *\n * Properties can be deleted by using the unset method. E.g.\n * object.unset('foo').\n *\n * @fires ObjectEvent\n * @api\n */\nvar BaseObject = /** @class */ (function (_super) {\n    __extends(BaseObject, _super);\n    /**\n     * @param {Object<string, *>} [opt_values] An object with key-value pairs.\n     */\n    function BaseObject(opt_values) {\n        var _this = _super.call(this) || this;\n        /***\n         * @type {ObjectOnSignature<import(\"./events\").EventsKey>}\n         */\n        _this.on;\n        /***\n         * @type {ObjectOnSignature<import(\"./events\").EventsKey>}\n         */\n        _this.once;\n        /***\n         * @type {ObjectOnSignature<void>}\n         */\n        _this.un;\n        // Call {@link module:ol/util.getUid} to ensure that the order of objects' ids is\n        // the same as the order in which they were created.  This also helps to\n        // ensure that object properties are always added in the same order, which\n        // helps many JavaScript engines generate faster code.\n        getUid(_this);\n        /**\n         * @private\n         * @type {Object<string, *>}\n         */\n        _this.values_ = null;\n        if (opt_values !== undefined) {\n            _this.setProperties(opt_values);\n        }\n        return _this;\n    }\n    /**\n     * Gets a value.\n     * @param {string} key Key name.\n     * @return {*} Value.\n     * @api\n     */\n    BaseObject.prototype.get = function (key) {\n        var value;\n        if (this.values_ && this.values_.hasOwnProperty(key)) {\n            value = this.values_[key];\n        }\n        return value;\n    };\n    /**\n     * Get a list of object property names.\n     * @return {Array<string>} List of property names.\n     * @api\n     */\n    BaseObject.prototype.getKeys = function () {\n        return (this.values_ && Object.keys(this.values_)) || [];\n    };\n    /**\n     * Get an object of all property names and values.\n     * @return {Object<string, *>} Object.\n     * @api\n     */\n    BaseObject.prototype.getProperties = function () {\n        return (this.values_ && assign({}, this.values_)) || {};\n    };\n    /**\n     * @return {boolean} The object has properties.\n     */\n    BaseObject.prototype.hasProperties = function () {\n        return !!this.values_;\n    };\n    /**\n     * @param {string} key Key name.\n     * @param {*} oldValue Old value.\n     */\n    BaseObject.prototype.notify = function (key, oldValue) {\n        var eventType;\n        eventType = \"change:\".concat(key);\n        if (this.hasListener(eventType)) {\n            this.dispatchEvent(new ObjectEvent(eventType, key, oldValue));\n        }\n        eventType = ObjectEventType.PROPERTYCHANGE;\n        if (this.hasListener(eventType)) {\n            this.dispatchEvent(new ObjectEvent(eventType, key, oldValue));\n        }\n    };\n    /**\n     * @param {string} key Key name.\n     * @param {import(\"./events.js\").Listener} listener Listener.\n     */\n    BaseObject.prototype.addChangeListener = function (key, listener) {\n        this.addEventListener(\"change:\".concat(key), listener);\n    };\n    /**\n     * @param {string} key Key name.\n     * @param {import(\"./events.js\").Listener} listener Listener.\n     */\n    BaseObject.prototype.removeChangeListener = function (key, listener) {\n        this.removeEventListener(\"change:\".concat(key), listener);\n    };\n    /**\n     * Sets a value.\n     * @param {string} key Key name.\n     * @param {*} value Value.\n     * @param {boolean} [opt_silent] Update without triggering an event.\n     * @api\n     */\n    BaseObject.prototype.set = function (key, value, opt_silent) {\n        var values = this.values_ || (this.values_ = {});\n        if (opt_silent) {\n            values[key] = value;\n        }\n        else {\n            var oldValue = values[key];\n            values[key] = value;\n            if (oldValue !== value) {\n                this.notify(key, oldValue);\n            }\n        }\n    };\n    /**\n     * Sets a collection of key-value pairs.  Note that this changes any existing\n     * properties and adds new ones (it does not remove any existing properties).\n     * @param {Object<string, *>} values Values.\n     * @param {boolean} [opt_silent] Update without triggering an event.\n     * @api\n     */\n    BaseObject.prototype.setProperties = function (values, opt_silent) {\n        for (var key in values) {\n            this.set(key, values[key], opt_silent);\n        }\n    };\n    /**\n     * Apply any properties from another object without triggering events.\n     * @param {BaseObject} source The source object.\n     * @protected\n     */\n    BaseObject.prototype.applyProperties = function (source) {\n        if (!source.values_) {\n            return;\n        }\n        assign(this.values_ || (this.values_ = {}), source.values_);\n    };\n    /**\n     * Unsets a property.\n     * @param {string} key Key name.\n     * @param {boolean} [opt_silent] Unset without triggering an event.\n     * @api\n     */\n    BaseObject.prototype.unset = function (key, opt_silent) {\n        if (this.values_ && key in this.values_) {\n            var oldValue = this.values_[key];\n            delete this.values_[key];\n            if (isEmpty(this.values_)) {\n                this.values_ = null;\n            }\n            if (!opt_silent) {\n                this.notify(key, oldValue);\n            }\n        }\n    };\n    return BaseObject;\n}(Observable));\nexport default BaseObject;\n//# sourceMappingURL=Object.js.map","/**\n * @module ol/ObjectEventType\n */\n/**\n * @enum {string}\n */\nexport default {\n    /**\n     * Triggered when a property is changed.\n     * @event module:ol/Object.ObjectEvent#propertychange\n     * @api\n     */\n    PROPERTYCHANGE: 'propertychange',\n};\n/**\n * @typedef {'propertychange'} Types\n */\n//# sourceMappingURL=ObjectEventType.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/Observable\n */\nimport EventTarget from './events/Target.js';\nimport EventType from './events/EventType.js';\nimport { listen, listenOnce, unlistenByKey } from './events.js';\n/***\n * @template {string} Type\n * @template {Event|import(\"./events/Event.js\").default} EventClass\n * @template Return\n * @typedef {(type: Type, listener: (event: EventClass) => ?) => Return} OnSignature\n */\n/***\n * @template {string} Type\n * @template Return\n * @typedef {(type: Type[], listener: (event: Event|import(\"./events/Event\").default) => ?) => Return extends void ? void : Return[]} CombinedOnSignature\n */\n/**\n * @typedef {'change'|'error'} EventTypes\n */\n/***\n * @template Return\n * @typedef {OnSignature<EventTypes, import(\"./events/Event.js\").default, Return> & CombinedOnSignature<EventTypes, Return>} ObservableOnSignature\n */\n/**\n * @classdesc\n * Abstract base class; normally only used for creating subclasses and not\n * instantiated in apps.\n * An event target providing convenient methods for listener registration\n * and unregistration. A generic `change` event is always available through\n * {@link module:ol/Observable~Observable#changed}.\n *\n * @fires import(\"./events/Event.js\").default\n * @api\n */\nvar Observable = /** @class */ (function (_super) {\n    __extends(Observable, _super);\n    function Observable() {\n        var _this = _super.call(this) || this;\n        _this.on =\n            /** @type {ObservableOnSignature<import(\"./events\").EventsKey>} */ (_this.onInternal);\n        _this.once =\n            /** @type {ObservableOnSignature<import(\"./events\").EventsKey>} */ (_this.onceInternal);\n        _this.un = /** @type {ObservableOnSignature<void>} */ (_this.unInternal);\n        /**\n         * @private\n         * @type {number}\n         */\n        _this.revision_ = 0;\n        return _this;\n    }\n    /**\n     * Increases the revision counter and dispatches a 'change' event.\n     * @api\n     */\n    Observable.prototype.changed = function () {\n        ++this.revision_;\n        this.dispatchEvent(EventType.CHANGE);\n    };\n    /**\n     * Get the version number for this object.  Each time the object is modified,\n     * its version number will be incremented.\n     * @return {number} Revision.\n     * @api\n     */\n    Observable.prototype.getRevision = function () {\n        return this.revision_;\n    };\n    /**\n     * @param {string|Array<string>} type Type.\n     * @param {function((Event|import(\"./events/Event\").default)): ?} listener Listener.\n     * @return {import(\"./events.js\").EventsKey|Array<import(\"./events.js\").EventsKey>} Event key.\n     * @protected\n     */\n    Observable.prototype.onInternal = function (type, listener) {\n        if (Array.isArray(type)) {\n            var len = type.length;\n            var keys = new Array(len);\n            for (var i = 0; i < len; ++i) {\n                keys[i] = listen(this, type[i], listener);\n            }\n            return keys;\n        }\n        else {\n            return listen(this, /** @type {string} */ (type), listener);\n        }\n    };\n    /**\n     * @param {string|Array<string>} type Type.\n     * @param {function((Event|import(\"./events/Event\").default)): ?} listener Listener.\n     * @return {import(\"./events.js\").EventsKey|Array<import(\"./events.js\").EventsKey>} Event key.\n     * @protected\n     */\n    Observable.prototype.onceInternal = function (type, listener) {\n        var key;\n        if (Array.isArray(type)) {\n            var len = type.length;\n            key = new Array(len);\n            for (var i = 0; i < len; ++i) {\n                key[i] = listenOnce(this, type[i], listener);\n            }\n        }\n        else {\n            key = listenOnce(this, /** @type {string} */ (type), listener);\n        }\n        /** @type {Object} */ (listener).ol_key = key;\n        return key;\n    };\n    /**\n     * Unlisten for a certain type of event.\n     * @param {string|Array<string>} type Type.\n     * @param {function((Event|import(\"./events/Event\").default)): ?} listener Listener.\n     * @protected\n     */\n    Observable.prototype.unInternal = function (type, listener) {\n        var key = /** @type {Object} */ (listener).ol_key;\n        if (key) {\n            unByKey(key);\n        }\n        else if (Array.isArray(type)) {\n            for (var i = 0, ii = type.length; i < ii; ++i) {\n                this.removeEventListener(type[i], listener);\n            }\n        }\n        else {\n            this.removeEventListener(type, listener);\n        }\n    };\n    return Observable;\n}(EventTarget));\n/**\n * Listen for a certain type of event.\n * @function\n * @param {string|Array<string>} type The event type or array of event types.\n * @param {function((Event|import(\"./events/Event\").default)): ?} listener The listener function.\n * @return {import(\"./events.js\").EventsKey|Array<import(\"./events.js\").EventsKey>} Unique key for the listener. If\n *     called with an array of event types as the first argument, the return\n *     will be an array of keys.\n * @api\n */\nObservable.prototype.on;\n/**\n * Listen once for a certain type of event.\n * @function\n * @param {string|Array<string>} type The event type or array of event types.\n * @param {function((Event|import(\"./events/Event\").default)): ?} listener The listener function.\n * @return {import(\"./events.js\").EventsKey|Array<import(\"./events.js\").EventsKey>} Unique key for the listener. If\n *     called with an array of event types as the first argument, the return\n *     will be an array of keys.\n * @api\n */\nObservable.prototype.once;\n/**\n * Unlisten for a certain type of event.\n * @function\n * @param {string|Array<string>} type The event type or array of event types.\n * @param {function((Event|import(\"./events/Event\").default)): ?} listener The listener function.\n * @api\n */\nObservable.prototype.un;\n/**\n * Removes an event listener using the key returned by `on()` or `once()`.\n * @param {import(\"./events.js\").EventsKey|Array<import(\"./events.js\").EventsKey>} key The key returned by `on()`\n *     or `once()` (or an array of keys).\n * @api\n */\nexport function unByKey(key) {\n    if (Array.isArray(key)) {\n        for (var i = 0, ii = key.length; i < ii; ++i) {\n            unlistenByKey(key[i]);\n        }\n    }\n    else {\n        unlistenByKey(/** @type {import(\"./events.js\").EventsKey} */ (key));\n    }\n}\nexport default Observable;\n//# sourceMappingURL=Observable.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/Overlay\n */\nimport BaseObject from './Object.js';\nimport MapEventType from './MapEventType.js';\nimport { CLASS_SELECTABLE } from './css.js';\nimport { containsExtent } from './extent.js';\nimport { listen, unlistenByKey } from './events.js';\nimport { outerHeight, outerWidth, removeChildren, removeNode } from './dom.js';\n/**\n * @typedef {'bottom-left' | 'bottom-center' | 'bottom-right' | 'center-left' | 'center-center' | 'center-right' | 'top-left' | 'top-center' | 'top-right'} Positioning\n * The overlay position: `'bottom-left'`, `'bottom-center'`,  `'bottom-right'`,\n * `'center-left'`, `'center-center'`, `'center-right'`, `'top-left'`,\n * `'top-center'`, or `'top-right'`.\n */\n/**\n * @typedef {Object} Options\n * @property {number|string} [id] Set the overlay id. The overlay id can be used\n * with the {@link module:ol/Map~Map#getOverlayById} method.\n * @property {HTMLElement} [element] The overlay element.\n * @property {Array<number>} [offset=[0, 0]] Offsets in pixels used when positioning\n * the overlay. The first element in the\n * array is the horizontal offset. A positive value shifts the overlay right.\n * The second element in the array is the vertical offset. A positive value\n * shifts the overlay down.\n * @property {import(\"./coordinate.js\").Coordinate} [position] The overlay position\n * in map projection.\n * @property {Positioning} [positioning='top-left'] Defines how\n * the overlay is actually positioned with respect to its `position` property.\n * Possible values are `'bottom-left'`, `'bottom-center'`, `'bottom-right'`,\n * `'center-left'`, `'center-center'`, `'center-right'`, `'top-left'`,\n * `'top-center'`, and `'top-right'`.\n * @property {boolean} [stopEvent=true] Whether event propagation to the map\n * viewport should be stopped. If `true` the overlay is placed in the same\n * container as that of the controls (CSS class name\n * `ol-overlaycontainer-stopevent`); if `false` it is placed in the container\n * with CSS class name specified by the `className` property.\n * @property {boolean} [insertFirst=true] Whether the overlay is inserted first\n * in the overlay container, or appended. If the overlay is placed in the same\n * container as that of the controls (see the `stopEvent` option) you will\n * probably set `insertFirst` to `true` so the overlay is displayed below the\n * controls.\n * @property {PanIntoViewOptions|boolean} [autoPan=false] Pan the map when calling\n * `setPosition`, so that the overlay is entirely visible in the current viewport?\n * If `true` (deprecated), then `autoPanAnimation` and `autoPanMargin` will be\n * used to determine the panning parameters; if an object is supplied then other\n * parameters are ignored.\n * @property {PanOptions} [autoPanAnimation] The animation options used to pan\n * the overlay into view. This animation is only used when `autoPan` is enabled.\n * A `duration` and `easing` may be provided to customize the animation.\n * Deprecated and ignored if `autoPan` is supplied as an object.\n * @property {number} [autoPanMargin=20] The margin (in pixels) between the\n * overlay and the borders of the map when autopanning. Deprecated and ignored\n * if `autoPan` is supplied as an object.\n * @property {PanIntoViewOptions} [autoPanOptions] The options to use for the\n * autoPan. This is only used when `autoPan` is enabled and has preference over\n * the individual `autoPanMargin` and `autoPanOptions`.\n * @property {string} [className='ol-overlay-container ol-selectable'] CSS class\n * name.\n */\n/**\n * @typedef {Object} PanOptions\n * @property {number} [duration=1000] The duration of the animation in\n * milliseconds.\n * @property {function(number):number} [easing] The easing function to use. Can\n * be one from {@link module:ol/easing} or a custom function.\n * Default is {@link module:ol/easing.inAndOut}.\n */\n/**\n * @typedef {Object} PanIntoViewOptions\n * @property {PanOptions} [animation={}] The animation parameters for the pan\n * @property {number} [margin=20] The margin (in pixels) between the\n * overlay and the borders of the map when panning into view.\n */\n/**\n * @enum {string}\n * @protected\n */\nvar Property = {\n    ELEMENT: 'element',\n    MAP: 'map',\n    OFFSET: 'offset',\n    POSITION: 'position',\n    POSITIONING: 'positioning',\n};\n/**\n * @typedef {import(\"./ObjectEventType\").Types|'change:element'|'change:map'|'change:offset'|'change:position'|\n *   'change:positioning'} OverlayObjectEventTypes\n */\n/***\n * @template Return\n * @typedef {import(\"./Observable\").OnSignature<import(\"./Observable\").EventTypes, import(\"./events/Event.js\").default, Return> &\n *   import(\"./Observable\").OnSignature<OverlayObjectEventTypes, import(\"./Object\").ObjectEvent, Return> &\n *   import(\"./Observable\").CombinedOnSignature<import(\"./Observable\").EventTypes|OverlayObjectEventTypes, Return>} OverlayOnSignature\n */\n/**\n * @classdesc\n * An element to be displayed over the map and attached to a single map\n * location.  Like {@link module:ol/control/Control~Control}, Overlays are\n * visible widgets. Unlike Controls, they are not in a fixed position on the\n * screen, but are tied to a geographical coordinate, so panning the map will\n * move an Overlay but not a Control.\n *\n * Example:\n *\n *     import Overlay from 'ol/Overlay';\n *\n *     var popup = new Overlay({\n *       element: document.getElementById('popup')\n *     });\n *     popup.setPosition(coordinate);\n *     map.addOverlay(popup);\n *\n * @api\n */\nvar Overlay = /** @class */ (function (_super) {\n    __extends(Overlay, _super);\n    /**\n     * @param {Options} options Overlay options.\n     */\n    function Overlay(options) {\n        var _this = _super.call(this) || this;\n        /***\n         * @type {OverlayOnSignature<import(\"./events\").EventsKey>}\n         */\n        _this.on;\n        /***\n         * @type {OverlayOnSignature<import(\"./events\").EventsKey>}\n         */\n        _this.once;\n        /***\n         * @type {OverlayOnSignature<void>}\n         */\n        _this.un;\n        /**\n         * @protected\n         * @type {Options}\n         */\n        _this.options = options;\n        /**\n         * @protected\n         * @type {number|string|undefined}\n         */\n        _this.id = options.id;\n        /**\n         * @protected\n         * @type {boolean}\n         */\n        _this.insertFirst =\n            options.insertFirst !== undefined ? options.insertFirst : true;\n        /**\n         * @protected\n         * @type {boolean}\n         */\n        _this.stopEvent = options.stopEvent !== undefined ? options.stopEvent : true;\n        /**\n         * @protected\n         * @type {HTMLElement}\n         */\n        _this.element = document.createElement('div');\n        _this.element.className =\n            options.className !== undefined\n                ? options.className\n                : 'ol-overlay-container ' + CLASS_SELECTABLE;\n        _this.element.style.position = 'absolute';\n        _this.element.style.pointerEvents = 'auto';\n        var autoPan = options.autoPan;\n        if (autoPan && 'object' !== typeof autoPan) {\n            autoPan = {\n                animation: options.autoPanAnimation,\n                margin: options.autoPanMargin,\n            };\n        }\n        /**\n         * @protected\n         * @type {PanIntoViewOptions|false}\n         */\n        _this.autoPan = /** @type {PanIntoViewOptions} */ (autoPan) || false;\n        /**\n         * @protected\n         * @type {{transform_: string,\n         *         visible: boolean}}\n         */\n        _this.rendered = {\n            transform_: '',\n            visible: true,\n        };\n        /**\n         * @protected\n         * @type {?import(\"./events.js\").EventsKey}\n         */\n        _this.mapPostrenderListenerKey = null;\n        _this.addChangeListener(Property.ELEMENT, _this.handleElementChanged);\n        _this.addChangeListener(Property.MAP, _this.handleMapChanged);\n        _this.addChangeListener(Property.OFFSET, _this.handleOffsetChanged);\n        _this.addChangeListener(Property.POSITION, _this.handlePositionChanged);\n        _this.addChangeListener(Property.POSITIONING, _this.handlePositioningChanged);\n        if (options.element !== undefined) {\n            _this.setElement(options.element);\n        }\n        _this.setOffset(options.offset !== undefined ? options.offset : [0, 0]);\n        _this.setPositioning(options.positioning || 'top-left');\n        if (options.position !== undefined) {\n            _this.setPosition(options.position);\n        }\n        return _this;\n    }\n    /**\n     * Get the DOM element of this overlay.\n     * @return {HTMLElement|undefined} The Element containing the overlay.\n     * @observable\n     * @api\n     */\n    Overlay.prototype.getElement = function () {\n        return /** @type {HTMLElement|undefined} */ (this.get(Property.ELEMENT));\n    };\n    /**\n     * Get the overlay identifier which is set on constructor.\n     * @return {number|string|undefined} Id.\n     * @api\n     */\n    Overlay.prototype.getId = function () {\n        return this.id;\n    };\n    /**\n     * Get the map associated with this overlay.\n     * @return {import(\"./PluggableMap.js\").default|null} The map that the\n     * overlay is part of.\n     * @observable\n     * @api\n     */\n    Overlay.prototype.getMap = function () {\n        return /** @type {import(\"./PluggableMap.js\").default|null} */ (this.get(Property.MAP) || null);\n    };\n    /**\n     * Get the offset of this overlay.\n     * @return {Array<number>} The offset.\n     * @observable\n     * @api\n     */\n    Overlay.prototype.getOffset = function () {\n        return /** @type {Array<number>} */ (this.get(Property.OFFSET));\n    };\n    /**\n     * Get the current position of this overlay.\n     * @return {import(\"./coordinate.js\").Coordinate|undefined} The spatial point that the overlay is\n     *     anchored at.\n     * @observable\n     * @api\n     */\n    Overlay.prototype.getPosition = function () {\n        return /** @type {import(\"./coordinate.js\").Coordinate|undefined} */ (this.get(Property.POSITION));\n    };\n    /**\n     * Get the current positioning of this overlay.\n     * @return {Positioning} How the overlay is positioned\n     *     relative to its point on the map.\n     * @observable\n     * @api\n     */\n    Overlay.prototype.getPositioning = function () {\n        return /** @type {Positioning} */ (this.get(Property.POSITIONING));\n    };\n    /**\n     * @protected\n     */\n    Overlay.prototype.handleElementChanged = function () {\n        removeChildren(this.element);\n        var element = this.getElement();\n        if (element) {\n            this.element.appendChild(element);\n        }\n    };\n    /**\n     * @protected\n     */\n    Overlay.prototype.handleMapChanged = function () {\n        if (this.mapPostrenderListenerKey) {\n            removeNode(this.element);\n            unlistenByKey(this.mapPostrenderListenerKey);\n            this.mapPostrenderListenerKey = null;\n        }\n        var map = this.getMap();\n        if (map) {\n            this.mapPostrenderListenerKey = listen(map, MapEventType.POSTRENDER, this.render, this);\n            this.updatePixelPosition();\n            var container = this.stopEvent\n                ? map.getOverlayContainerStopEvent()\n                : map.getOverlayContainer();\n            if (this.insertFirst) {\n                container.insertBefore(this.element, container.childNodes[0] || null);\n            }\n            else {\n                container.appendChild(this.element);\n            }\n            this.performAutoPan();\n        }\n    };\n    /**\n     * @protected\n     */\n    Overlay.prototype.render = function () {\n        this.updatePixelPosition();\n    };\n    /**\n     * @protected\n     */\n    Overlay.prototype.handleOffsetChanged = function () {\n        this.updatePixelPosition();\n    };\n    /**\n     * @protected\n     */\n    Overlay.prototype.handlePositionChanged = function () {\n        this.updatePixelPosition();\n        this.performAutoPan();\n    };\n    /**\n     * @protected\n     */\n    Overlay.prototype.handlePositioningChanged = function () {\n        this.updatePixelPosition();\n    };\n    /**\n     * Set the DOM element to be associated with this overlay.\n     * @param {HTMLElement|undefined} element The Element containing the overlay.\n     * @observable\n     * @api\n     */\n    Overlay.prototype.setElement = function (element) {\n        this.set(Property.ELEMENT, element);\n    };\n    /**\n     * Set the map to be associated with this overlay.\n     * @param {import(\"./PluggableMap.js\").default|null} map The map that the\n     * overlay is part of. Pass `null` to just remove the overlay from the current map.\n     * @observable\n     * @api\n     */\n    Overlay.prototype.setMap = function (map) {\n        this.set(Property.MAP, map);\n    };\n    /**\n     * Set the offset for this overlay.\n     * @param {Array<number>} offset Offset.\n     * @observable\n     * @api\n     */\n    Overlay.prototype.setOffset = function (offset) {\n        this.set(Property.OFFSET, offset);\n    };\n    /**\n     * Set the position for this overlay. If the position is `undefined` the\n     * overlay is hidden.\n     * @param {import(\"./coordinate.js\").Coordinate|undefined} position The spatial point that the overlay\n     *     is anchored at.\n     * @observable\n     * @api\n     */\n    Overlay.prototype.setPosition = function (position) {\n        this.set(Property.POSITION, position);\n    };\n    /**\n     * Pan the map so that the overlay is entirely visible in the current viewport\n     * (if necessary) using the configured autoPan parameters\n     * @protected\n     */\n    Overlay.prototype.performAutoPan = function () {\n        if (this.autoPan) {\n            this.panIntoView(this.autoPan);\n        }\n    };\n    /**\n     * Pan the map so that the overlay is entirely visible in the current viewport\n     * (if necessary).\n     * @param {PanIntoViewOptions} [opt_panIntoViewOptions] Options for the pan action\n     * @api\n     */\n    Overlay.prototype.panIntoView = function (opt_panIntoViewOptions) {\n        var map = this.getMap();\n        if (!map || !map.getTargetElement() || !this.get(Property.POSITION)) {\n            return;\n        }\n        var mapRect = this.getRect(map.getTargetElement(), map.getSize());\n        var element = this.getElement();\n        var overlayRect = this.getRect(element, [\n            outerWidth(element),\n            outerHeight(element),\n        ]);\n        var panIntoViewOptions = opt_panIntoViewOptions || {};\n        var myMargin = panIntoViewOptions.margin === undefined ? 20 : panIntoViewOptions.margin;\n        if (!containsExtent(mapRect, overlayRect)) {\n            // the overlay is not completely inside the viewport, so pan the map\n            var offsetLeft = overlayRect[0] - mapRect[0];\n            var offsetRight = mapRect[2] - overlayRect[2];\n            var offsetTop = overlayRect[1] - mapRect[1];\n            var offsetBottom = mapRect[3] - overlayRect[3];\n            var delta = [0, 0];\n            if (offsetLeft < 0) {\n                // move map to the left\n                delta[0] = offsetLeft - myMargin;\n            }\n            else if (offsetRight < 0) {\n                // move map to the right\n                delta[0] = Math.abs(offsetRight) + myMargin;\n            }\n            if (offsetTop < 0) {\n                // move map up\n                delta[1] = offsetTop - myMargin;\n            }\n            else if (offsetBottom < 0) {\n                // move map down\n                delta[1] = Math.abs(offsetBottom) + myMargin;\n            }\n            if (delta[0] !== 0 || delta[1] !== 0) {\n                var center = /** @type {import(\"./coordinate.js\").Coordinate} */ (map.getView().getCenterInternal());\n                var centerPx = map.getPixelFromCoordinateInternal(center);\n                if (!centerPx) {\n                    return;\n                }\n                var newCenterPx = [centerPx[0] + delta[0], centerPx[1] + delta[1]];\n                var panOptions = panIntoViewOptions.animation || {};\n                map.getView().animateInternal({\n                    center: map.getCoordinateFromPixelInternal(newCenterPx),\n                    duration: panOptions.duration,\n                    easing: panOptions.easing,\n                });\n            }\n        }\n    };\n    /**\n     * Get the extent of an element relative to the document\n     * @param {HTMLElement} element The element.\n     * @param {import(\"./size.js\").Size} size The size of the element.\n     * @return {import(\"./extent.js\").Extent} The extent.\n     * @protected\n     */\n    Overlay.prototype.getRect = function (element, size) {\n        var box = element.getBoundingClientRect();\n        var offsetX = box.left + window.pageXOffset;\n        var offsetY = box.top + window.pageYOffset;\n        return [offsetX, offsetY, offsetX + size[0], offsetY + size[1]];\n    };\n    /**\n     * Set the positioning for this overlay.\n     * @param {Positioning} positioning how the overlay is\n     *     positioned relative to its point on the map.\n     * @observable\n     * @api\n     */\n    Overlay.prototype.setPositioning = function (positioning) {\n        this.set(Property.POSITIONING, positioning);\n    };\n    /**\n     * Modify the visibility of the element.\n     * @param {boolean} visible Element visibility.\n     * @protected\n     */\n    Overlay.prototype.setVisible = function (visible) {\n        if (this.rendered.visible !== visible) {\n            this.element.style.display = visible ? '' : 'none';\n            this.rendered.visible = visible;\n        }\n    };\n    /**\n     * Update pixel position.\n     * @protected\n     */\n    Overlay.prototype.updatePixelPosition = function () {\n        var map = this.getMap();\n        var position = this.getPosition();\n        if (!map || !map.isRendered() || !position) {\n            this.setVisible(false);\n            return;\n        }\n        var pixel = map.getPixelFromCoordinate(position);\n        var mapSize = map.getSize();\n        this.updateRenderedPosition(pixel, mapSize);\n    };\n    /**\n     * @param {import(\"./pixel.js\").Pixel} pixel The pixel location.\n     * @param {import(\"./size.js\").Size|undefined} mapSize The map size.\n     * @protected\n     */\n    Overlay.prototype.updateRenderedPosition = function (pixel, mapSize) {\n        var style = this.element.style;\n        var offset = this.getOffset();\n        var positioning = this.getPositioning();\n        this.setVisible(true);\n        var x = Math.round(pixel[0] + offset[0]) + 'px';\n        var y = Math.round(pixel[1] + offset[1]) + 'px';\n        var posX = '0%';\n        var posY = '0%';\n        if (positioning == 'bottom-right' ||\n            positioning == 'center-right' ||\n            positioning == 'top-right') {\n            posX = '-100%';\n        }\n        else if (positioning == 'bottom-center' ||\n            positioning == 'center-center' ||\n            positioning == 'top-center') {\n            posX = '-50%';\n        }\n        if (positioning == 'bottom-left' ||\n            positioning == 'bottom-center' ||\n            positioning == 'bottom-right') {\n            posY = '-100%';\n        }\n        else if (positioning == 'center-left' ||\n            positioning == 'center-center' ||\n            positioning == 'center-right') {\n            posY = '-50%';\n        }\n        var transform = \"translate(\".concat(posX, \", \").concat(posY, \") translate(\").concat(x, \", \").concat(y, \")\");\n        if (this.rendered.transform_ != transform) {\n            this.rendered.transform_ = transform;\n            style.transform = transform;\n            // @ts-ignore IE9\n            style.msTransform = transform;\n        }\n    };\n    /**\n     * returns the options this Overlay has been created with\n     * @return {Options} overlay options\n     */\n    Overlay.prototype.getOptions = function () {\n        return this.options;\n    };\n    return Overlay;\n}(BaseObject));\nexport default Overlay;\n//# sourceMappingURL=Overlay.js.map"],"names":[],"sourceRoot":""}