default-node_modules_angular_material_fesm2015_icon_mjs.js

"use strict";
(self["webpackChunkspielhalle"] = self["webpackChunkspielhalle"] || []).push([["default-node_modules_angular_material_fesm2015_icon_mjs"],{

/***/ 1640:
/*!********************************************************************!*\
  !*** ./node_modules/rxjs/dist/esm/internal/observable/forkJoin.js ***!
  \********************************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "forkJoin": () => (/* binding */ forkJoin)
/* harmony export */ });
/* harmony import */ var _Observable__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../Observable */ 833);
/* harmony import */ var _util_argsArgArrayOrObject__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../util/argsArgArrayOrObject */ 5756);
/* harmony import */ var _innerFrom__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ./innerFrom */ 4987);
/* harmony import */ var _util_args__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../util/args */ 420);
/* harmony import */ var _operators_OperatorSubscriber__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ../operators/OperatorSubscriber */ 3945);
/* harmony import */ var _util_mapOneOrManyArgs__WEBPACK_IMPORTED_MODULE_6__ = __webpack_require__(/*! ../util/mapOneOrManyArgs */ 8385);
/* harmony import */ var _util_createObject__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! ../util/createObject */ 1054);







function forkJoin(...args) {
    const resultSelector = (0,_util_args__WEBPACK_IMPORTED_MODULE_0__.popResultSelector)(args);
    const { args: sources, keys } = (0,_util_argsArgArrayOrObject__WEBPACK_IMPORTED_MODULE_1__.argsArgArrayOrObject)(args);
    const result = new _Observable__WEBPACK_IMPORTED_MODULE_2__.Observable((subscriber) => {
        const { length } = sources;
        if (!length) {
            subscriber.complete();
            return;
        }
        const values = new Array(length);
        let remainingCompletions = length;
        let remainingEmissions = length;
        for (let sourceIndex = 0; sourceIndex < length; sourceIndex++) {
            let hasValue = false;
            (0,_innerFrom__WEBPACK_IMPORTED_MODULE_3__.innerFrom)(sources[sourceIndex]).subscribe(new _operators_OperatorSubscriber__WEBPACK_IMPORTED_MODULE_4__.OperatorSubscriber(subscriber, (value) => {
                if (!hasValue) {
                    hasValue = true;
                    remainingEmissions--;
                }
                values[sourceIndex] = value;
            }, () => remainingCompletions--, undefined, () => {
                if (!remainingCompletions || !hasValue) {
                    if (!remainingEmissions) {
                        subscriber.next(keys ? (0,_util_createObject__WEBPACK_IMPORTED_MODULE_5__.createObject)(keys, values) : values);
                    }
                    subscriber.complete();
                }
            }));
        }
    });
    return resultSelector ? result.pipe((0,_util_mapOneOrManyArgs__WEBPACK_IMPORTED_MODULE_6__.mapOneOrManyArgs)(resultSelector)) : result;
}


/***/ }),

/***/ 8784:
/*!********************************************************!*\
  !*** ./node_modules/@angular/common/fesm2015/http.mjs ***!
  \********************************************************/
/***/ ((__unused_webpack___webpack_module__, __webpack_exports__, __webpack_require__) => {

__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "HTTP_INTERCEPTORS": () => (/* binding */ HTTP_INTERCEPTORS),
/* harmony export */   "HttpBackend": () => (/* binding */ HttpBackend),
/* harmony export */   "HttpClient": () => (/* binding */ HttpClient),
/* harmony export */   "HttpClientJsonpModule": () => (/* binding */ HttpClientJsonpModule),
/* harmony export */   "HttpClientModule": () => (/* binding */ HttpClientModule),
/* harmony export */   "HttpClientXsrfModule": () => (/* binding */ HttpClientXsrfModule),
/* harmony export */   "HttpContext": () => (/* binding */ HttpContext),
/* harmony export */   "HttpContextToken": () => (/* binding */ HttpContextToken),
/* harmony export */   "HttpErrorResponse": () => (/* binding */ HttpErrorResponse),
/* harmony export */   "HttpEventType": () => (/* binding */ HttpEventType),
/* harmony export */   "HttpHandler": () => (/* binding */ HttpHandler),
/* harmony export */   "HttpHeaderResponse": () => (/* binding */ HttpHeaderResponse),
/* harmony export */   "HttpHeaders": () => (/* binding */ HttpHeaders),
/* harmony export */   "HttpParams": () => (/* binding */ HttpParams),
/* harmony export */   "HttpRequest": () => (/* binding */ HttpRequest),
/* harmony export */   "HttpResponse": () => (/* binding */ HttpResponse),
/* harmony export */   "HttpResponseBase": () => (/* binding */ HttpResponseBase),
/* harmony export */   "HttpUrlEncodingCodec": () => (/* binding */ HttpUrlEncodingCodec),
/* harmony export */   "HttpXhrBackend": () => (/* binding */ HttpXhrBackend),
/* harmony export */   "HttpXsrfTokenExtractor": () => (/* binding */ HttpXsrfTokenExtractor),
/* harmony export */   "JsonpClientBackend": () => (/* binding */ JsonpClientBackend),
/* harmony export */   "JsonpInterceptor": () => (/* binding */ JsonpInterceptor),
/* harmony export */   "XhrFactory": () => (/* binding */ XhrFactory),
/* harmony export */   "ɵHttpInterceptingHandler": () => (/* binding */ HttpInterceptingHandler)
/* harmony export */ });
/* harmony import */ var _angular_common__WEBPACK_IMPORTED_MODULE_6__ = __webpack_require__(/*! @angular/common */ 6362);
/* harmony import */ var _angular_core__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! @angular/core */ 3184);
/* harmony import */ var rxjs__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! rxjs */ 745);
/* harmony import */ var rxjs__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! rxjs */ 833);
/* harmony import */ var rxjs_operators__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! rxjs/operators */ 3853);
/* harmony import */ var rxjs_operators__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! rxjs/operators */ 116);
/* harmony import */ var rxjs_operators__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! rxjs/operators */ 635);
/**
 * @license Angular v13.2.5
 * (c) 2010-2022 Google LLC. https://angular.io/
 * License: MIT
 */






/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */

/**
 * Transforms an `HttpRequest` into a stream of `HttpEvent`s, one of which will likely be a
 * `HttpResponse`.
 *
 * `HttpHandler` is injectable. When injected, the handler instance dispatches requests to the
 * first interceptor in the chain, which dispatches to the second, etc, eventually reaching the
 * `HttpBackend`.
 *
 * In an `HttpInterceptor`, the `HttpHandler` parameter is the next interceptor in the chain.
 *
 * @publicApi
 */

class HttpHandler {}
/**
 * A final `HttpHandler` which will dispatch the request via browser HTTP APIs to a backend.
 *
 * Interceptors sit between the `HttpClient` interface and the `HttpBackend`.
 *
 * When injected, `HttpBackend` dispatches requests directly to the backend, without going
 * through the interceptor chain.
 *
 * @publicApi
 */


class HttpBackend {}
/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */

/**
 * Represents the header configuration options for an HTTP request.
 * Instances are immutable. Modifying methods return a cloned
 * instance with the change. The original object is never changed.
 *
 * @publicApi
 */


class HttpHeaders {
  /**  Constructs a new HTTP header object with the given values.*/
  constructor(headers) {
    /**
     * Internal map of lowercased header names to the normalized
     * form of the name (the form seen first).
     */
    this.normalizedNames = new Map();
    /**
     * Queued updates to be materialized the next initialization.
     */

    this.lazyUpdate = null;

    if (!headers) {
      this.headers = new Map();
    } else if (typeof headers === 'string') {
      this.lazyInit = () => {
        this.headers = new Map();
        headers.split('\n').forEach(line => {
          const index = line.indexOf(':');

          if (index > 0) {
            const name = line.slice(0, index);
            const key = name.toLowerCase();
            const value = line.slice(index + 1).trim();
            this.maybeSetNormalizedName(name, key);

            if (this.headers.has(key)) {
              this.headers.get(key).push(value);
            } else {
              this.headers.set(key, [value]);
            }
          }
        });
      };
    } else {
      this.lazyInit = () => {
        this.headers = new Map();
        Object.keys(headers).forEach(name => {
          let values = headers[name];
          const key = name.toLowerCase();

          if (typeof values === 'string') {
            values = [values];
          }

          if (values.length > 0) {
            this.headers.set(key, values);
            this.maybeSetNormalizedName(name, key);
          }
        });
      };
    }
  }
  /**
   * Checks for existence of a given header.
   *
   * @param name The header name to check for existence.
   *
   * @returns True if the header exists, false otherwise.
   */


  has(name) {
    this.init();
    return this.headers.has(name.toLowerCase());
  }
  /**
   * Retrieves the first value of a given header.
   *
   * @param name The header name.
   *
   * @returns The value string if the header exists, null otherwise
   */


  get(name) {
    this.init();
    const values = this.headers.get(name.toLowerCase());
    return values && values.length > 0 ? values[0] : null;
  }
  /**
   * Retrieves the names of the headers.
   *
   * @returns A list of header names.
   */


  keys() {
    this.init();
    return Array.from(this.normalizedNames.values());
  }
  /**
   * Retrieves a list of values for a given header.
   *
   * @param name The header name from which to retrieve values.
   *
   * @returns A string of values if the header exists, null otherwise.
   */


  getAll(name) {
    this.init();
    return this.headers.get(name.toLowerCase()) || null;
  }
  /**
   * Appends a new value to the existing set of values for a header
   * and returns them in a clone of the original instance.
   *
   * @param name The header name for which to append the values.
   * @param value The value to append.
   *
   * @returns A clone of the HTTP headers object with the value appended to the given header.
   */


  append(name, value) {
    return this.clone({
      name,
      value,
      op: 'a'
    });
  }
  /**
   * Sets or modifies a value for a given header in a clone of the original instance.
   * If the header already exists, its value is replaced with the given value
   * in the returned object.
   *
   * @param name The header name.
   * @param value The value or values to set or overide for the given header.
   *
   * @returns A clone of the HTTP headers object with the newly set header value.
   */


  set(name, value) {
    return this.clone({
      name,
      value,
      op: 's'
    });
  }
  /**
   * Deletes values for a given header in a clone of the original instance.
   *
   * @param name The header name.
   * @param value The value or values to delete for the given header.
   *
   * @returns A clone of the HTTP headers object with the given value deleted.
   */


  delete(name, value) {
    return this.clone({
      name,
      value,
      op: 'd'
    });
  }

  maybeSetNormalizedName(name, lcName) {
    if (!this.normalizedNames.has(lcName)) {
      this.normalizedNames.set(lcName, name);
    }
  }

  init() {
    if (!!this.lazyInit) {
      if (this.lazyInit instanceof HttpHeaders) {
        this.copyFrom(this.lazyInit);
      } else {
        this.lazyInit();
      }

      this.lazyInit = null;

      if (!!this.lazyUpdate) {
        this.lazyUpdate.forEach(update => this.applyUpdate(update));
        this.lazyUpdate = null;
      }
    }
  }

  copyFrom(other) {
    other.init();
    Array.from(other.headers.keys()).forEach(key => {
      this.headers.set(key, other.headers.get(key));
      this.normalizedNames.set(key, other.normalizedNames.get(key));
    });
  }

  clone(update) {
    const clone = new HttpHeaders();
    clone.lazyInit = !!this.lazyInit && this.lazyInit instanceof HttpHeaders ? this.lazyInit : this;
    clone.lazyUpdate = (this.lazyUpdate || []).concat([update]);
    return clone;
  }

  applyUpdate(update) {
    const key = update.name.toLowerCase();

    switch (update.op) {
      case 'a':
      case 's':
        let value = update.value;

        if (typeof value === 'string') {
          value = [value];
        }

        if (value.length === 0) {
          return;
        }

        this.maybeSetNormalizedName(update.name, key);
        const base = (update.op === 'a' ? this.headers.get(key) : undefined) || [];
        base.push(...value);
        this.headers.set(key, base);
        break;

      case 'd':
        const toDelete = update.value;

        if (!toDelete) {
          this.headers.delete(key);
          this.normalizedNames.delete(key);
        } else {
          let existing = this.headers.get(key);

          if (!existing) {
            return;
          }

          existing = existing.filter(value => toDelete.indexOf(value) === -1);

          if (existing.length === 0) {
            this.headers.delete(key);
            this.normalizedNames.delete(key);
          } else {
            this.headers.set(key, existing);
          }
        }

        break;
    }
  }
  /**
   * @internal
   */


  forEach(fn) {
    this.init();
    Array.from(this.normalizedNames.keys()).forEach(key => fn(this.normalizedNames.get(key), this.headers.get(key)));
  }

}
/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */

/**
 * Provides encoding and decoding of URL parameter and query-string values.
 *
 * Serializes and parses URL parameter keys and values to encode and decode them.
 * If you pass URL query parameters without encoding,
 * the query parameters can be misinterpreted at the receiving end.
 *
 *
 * @publicApi
 */


class HttpUrlEncodingCodec {
  /**
   * Encodes a key name for a URL parameter or query-string.
   * @param key The key name.
   * @returns The encoded key name.
   */
  encodeKey(key) {
    return standardEncoding(key);
  }
  /**
   * Encodes the value of a URL parameter or query-string.
   * @param value The value.
   * @returns The encoded value.
   */


  encodeValue(value) {
    return standardEncoding(value);
  }
  /**
   * Decodes an encoded URL parameter or query-string key.
   * @param key The encoded key name.
   * @returns The decoded key name.
   */


  decodeKey(key) {
    return decodeURIComponent(key);
  }
  /**
   * Decodes an encoded URL parameter or query-string value.
   * @param value The encoded value.
   * @returns The decoded value.
   */


  decodeValue(value) {
    return decodeURIComponent(value);
  }

}

function paramParser(rawParams, codec) {
  const map = new Map();

  if (rawParams.length > 0) {
    // The `window.location.search` can be used while creating an instance of the `HttpParams` class
    // (e.g. `new HttpParams({ fromString: window.location.search })`). The `window.location.search`
    // may start with the `?` char, so we strip it if it's present.
    const params = rawParams.replace(/^\?/, '').split('&');
    params.forEach(param => {
      const eqIdx = param.indexOf('=');
      const [key, val] = eqIdx == -1 ? [codec.decodeKey(param), ''] : [codec.decodeKey(param.slice(0, eqIdx)), codec.decodeValue(param.slice(eqIdx + 1))];
      const list = map.get(key) || [];
      list.push(val);
      map.set(key, list);
    });
  }

  return map;
}
/**
 * Encode input string with standard encodeURIComponent and then un-encode specific characters.
 */


const STANDARD_ENCODING_REGEX = /%(\d[a-f0-9])/gi;
const STANDARD_ENCODING_REPLACEMENTS = {
  '40': '@',
  '3A': ':',
  '24': '$',
  '2C': ',',
  '3B': ';',
  '2B': '+',
  '3D': '=',
  '3F': '?',
  '2F': '/'
};

function standardEncoding(v) {
  return encodeURIComponent(v).replace(STANDARD_ENCODING_REGEX, (s, t) => {
    var _a;

    return (_a = STANDARD_ENCODING_REPLACEMENTS[t]) !== null && _a !== void 0 ? _a : s;
  });
}

function valueToString(value) {
  return `${value}`;
}
/**
 * An HTTP request/response body that represents serialized parameters,
 * per the MIME type `application/x-www-form-urlencoded`.
 *
 * This class is immutable; all mutation operations return a new instance.
 *
 * @publicApi
 */


class HttpParams {
  constructor(options = {}) {
    this.updates = null;
    this.cloneFrom = null;
    this.encoder = options.encoder || new HttpUrlEncodingCodec();

    if (!!options.fromString) {
      if (!!options.fromObject) {
        throw new Error(`Cannot specify both fromString and fromObject.`);
      }

      this.map = paramParser(options.fromString, this.encoder);
    } else if (!!options.fromObject) {
      this.map = new Map();
      Object.keys(options.fromObject).forEach(key => {
        const value = options.fromObject[key];
        this.map.set(key, Array.isArray(value) ? value : [value]);
      });
    } else {
      this.map = null;
    }
  }
  /**
   * Reports whether the body includes one or more values for a given parameter.
   * @param param The parameter name.
   * @returns True if the parameter has one or more values,
   * false if it has no value or is not present.
   */


  has(param) {
    this.init();
    return this.map.has(param);
  }
  /**
   * Retrieves the first value for a parameter.
   * @param param The parameter name.
   * @returns The first value of the given parameter,
   * or `null` if the parameter is not present.
   */


  get(param) {
    this.init();
    const res = this.map.get(param);
    return !!res ? res[0] : null;
  }
  /**
   * Retrieves all values for a  parameter.
   * @param param The parameter name.
   * @returns All values in a string array,
   * or `null` if the parameter not present.
   */


  getAll(param) {
    this.init();
    return this.map.get(param) || null;
  }
  /**
   * Retrieves all the parameters for this body.
   * @returns The parameter names in a string array.
   */


  keys() {
    this.init();
    return Array.from(this.map.keys());
  }
  /**
   * Appends a new value to existing values for a parameter.
   * @param param The parameter name.
   * @param value The new value to add.
   * @return A new body with the appended value.
   */


  append(param, value) {
    return this.clone({
      param,
      value,
      op: 'a'
    });
  }
  /**
   * Constructs a new body with appended values for the given parameter name.
   * @param params parameters and values
   * @return A new body with the new value.
   */


  appendAll(params) {
    const updates = [];
    Object.keys(params).forEach(param => {
      const value = params[param];

      if (Array.isArray(value)) {
        value.forEach(_value => {
          updates.push({
            param,
            value: _value,
            op: 'a'
          });
        });
      } else {
        updates.push({
          param,
          value: value,
          op: 'a'
        });
      }
    });
    return this.clone(updates);
  }
  /**
   * Replaces the value for a parameter.
   * @param param The parameter name.
   * @param value The new value.
   * @return A new body with the new value.
   */


  set(param, value) {
    return this.clone({
      param,
      value,
      op: 's'
    });
  }
  /**
   * Removes a given value or all values from a parameter.
   * @param param The parameter name.
   * @param value The value to remove, if provided.
   * @return A new body with the given value removed, or with all values
   * removed if no value is specified.
   */


  delete(param, value) {
    return this.clone({
      param,
      value,
      op: 'd'
    });
  }
  /**
   * Serializes the body to an encoded string, where key-value pairs (separated by `=`) are
   * separated by `&`s.
   */


  toString() {
    this.init();
    return this.keys().map(key => {
      const eKey = this.encoder.encodeKey(key); // `a: ['1']` produces `'a=1'`
      // `b: []` produces `''`
      // `c: ['1', '2']` produces `'c=1&c=2'`

      return this.map.get(key).map(value => eKey + '=' + this.encoder.encodeValue(value)).join('&');
    }) // filter out empty values because `b: []` produces `''`
    // which results in `a=1&&c=1&c=2` instead of `a=1&c=1&c=2` if we don't
    .filter(param => param !== '').join('&');
  }

  clone(update) {
    const clone = new HttpParams({
      encoder: this.encoder
    });
    clone.cloneFrom = this.cloneFrom || this;
    clone.updates = (this.updates || []).concat(update);
    return clone;
  }

  init() {
    if (this.map === null) {
      this.map = new Map();
    }

    if (this.cloneFrom !== null) {
      this.cloneFrom.init();
      this.cloneFrom.keys().forEach(key => this.map.set(key, this.cloneFrom.map.get(key)));
      this.updates.forEach(update => {
        switch (update.op) {
          case 'a':
          case 's':
            const base = (update.op === 'a' ? this.map.get(update.param) : undefined) || [];
            base.push(valueToString(update.value));
            this.map.set(update.param, base);
            break;

          case 'd':
            if (update.value !== undefined) {
              let base = this.map.get(update.param) || [];
              const idx = base.indexOf(valueToString(update.value));

              if (idx !== -1) {
                base.splice(idx, 1);
              }

              if (base.length > 0) {
                this.map.set(update.param, base);
              } else {
                this.map.delete(update.param);
              }
            } else {
              this.map.delete(update.param);
              break;
            }

        }
      });
      this.cloneFrom = this.updates = null;
    }
  }

}
/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */

/**
 * A token used to manipulate and access values stored in `HttpContext`.
 *
 * @publicApi
 */


class HttpContextToken {
  constructor(defaultValue) {
    this.defaultValue = defaultValue;
  }

}
/**
 * Http context stores arbitrary user defined values and ensures type safety without
 * actually knowing the types. It is backed by a `Map` and guarantees that keys do not clash.
 *
 * This context is mutable and is shared between cloned requests unless explicitly specified.
 *
 * @usageNotes
 *
 * ### Usage Example
 *
 * ```typescript
 * // inside cache.interceptors.ts
 * export const IS_CACHE_ENABLED = new HttpContextToken<boolean>(() => false);
 *
 * export class CacheInterceptor implements HttpInterceptor {
 *
 *   intercept(req: HttpRequest<any>, delegate: HttpHandler): Observable<HttpEvent<any>> {
 *     if (req.context.get(IS_CACHE_ENABLED) === true) {
 *       return ...;
 *     }
 *     return delegate.handle(req);
 *   }
 * }
 *
 * // inside a service
 *
 * this.httpClient.get('/api/weather', {
 *   context: new HttpContext().set(IS_CACHE_ENABLED, true)
 * }).subscribe(...);
 * ```
 *
 * @publicApi
 */


class HttpContext {
  constructor() {
    this.map = new Map();
  }
  /**
   * Store a value in the context. If a value is already present it will be overwritten.
   *
   * @param token The reference to an instance of `HttpContextToken`.
   * @param value The value to store.
   *
   * @returns A reference to itself for easy chaining.
   */


  set(token, value) {
    this.map.set(token, value);
    return this;
  }
  /**
   * Retrieve the value associated with the given token.
   *
   * @param token The reference to an instance of `HttpContextToken`.
   *
   * @returns The stored value or default if one is defined.
   */


  get(token) {
    if (!this.map.has(token)) {
      this.map.set(token, token.defaultValue());
    }

    return this.map.get(token);
  }
  /**
   * Delete the value associated with the given token.
   *
   * @param token The reference to an instance of `HttpContextToken`.
   *
   * @returns A reference to itself for easy chaining.
   */


  delete(token) {
    this.map.delete(token);
    return this;
  }
  /**
   * Checks for existence of a given token.
   *
   * @param token The reference to an instance of `HttpContextToken`.
   *
   * @returns True if the token exists, false otherwise.
   */


  has(token) {
    return this.map.has(token);
  }
  /**
   * @returns a list of tokens currently stored in the context.
   */


  keys() {
    return this.map.keys();
  }

}
/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */

/**
 * Determine whether the given HTTP method may include a body.
 */


function mightHaveBody(method) {
  switch (method) {
    case 'DELETE':
    case 'GET':
    case 'HEAD':
    case 'OPTIONS':
    case 'JSONP':
      return false;

    default:
      return true;
  }
}
/**
 * Safely assert whether the given value is an ArrayBuffer.
 *
 * In some execution environments ArrayBuffer is not defined.
 */


function isArrayBuffer(value) {
  return typeof ArrayBuffer !== 'undefined' && value instanceof ArrayBuffer;
}
/**
 * Safely assert whether the given value is a Blob.
 *
 * In some execution environments Blob is not defined.
 */


function isBlob(value) {
  return typeof Blob !== 'undefined' && value instanceof Blob;
}
/**
 * Safely assert whether the given value is a FormData instance.
 *
 * In some execution environments FormData is not defined.
 */


function isFormData(value) {
  return typeof FormData !== 'undefined' && value instanceof FormData;
}
/**
 * Safely assert whether the given value is a URLSearchParams instance.
 *
 * In some execution environments URLSearchParams is not defined.
 */


function isUrlSearchParams(value) {
  return typeof URLSearchParams !== 'undefined' && value instanceof URLSearchParams;
}
/**
 * An outgoing HTTP request with an optional typed body.
 *
 * `HttpRequest` represents an outgoing request, including URL, method,
 * headers, body, and other request configuration options. Instances should be
 * assumed to be immutable. To modify a `HttpRequest`, the `clone`
 * method should be used.
 *
 * @publicApi
 */


class HttpRequest {
  constructor(method, url, third, fourth) {
    this.url = url;
    /**
     * The request body, or `null` if one isn't set.
     *
     * Bodies are not enforced to be immutable, as they can include a reference to any
     * user-defined data type. However, interceptors should take care to preserve
     * idempotence by treating them as such.
     */

    this.body = null;
    /**
     * Whether this request should be made in a way that exposes progress events.
     *
     * Progress events are expensive (change detection runs on each event) and so
     * they should only be requested if the consumer intends to monitor them.
     */

    this.reportProgress = false;
    /**
     * Whether this request should be sent with outgoing credentials (cookies).
     */

    this.withCredentials = false;
    /**
     * The expected response type of the server.
     *
     * This is used to parse the response appropriately before returning it to
     * the requestee.
     */

    this.responseType = 'json';
    this.method = method.toUpperCase(); // Next, need to figure out which argument holds the HttpRequestInit
    // options, if any.

    let options; // Check whether a body argument is expected. The only valid way to omit
    // the body argument is to use a known no-body method like GET.

    if (mightHaveBody(this.method) || !!fourth) {
      // Body is the third argument, options are the fourth.
      this.body = third !== undefined ? third : null;
      options = fourth;
    } else {
      // No body required, options are the third argument. The body stays null.
      options = third;
    } // If options have been passed, interpret them.


    if (options) {
      // Normalize reportProgress and withCredentials.
      this.reportProgress = !!options.reportProgress;
      this.withCredentials = !!options.withCredentials; // Override default response type of 'json' if one is provided.

      if (!!options.responseType) {
        this.responseType = options.responseType;
      } // Override headers if they're provided.


      if (!!options.headers) {
        this.headers = options.headers;
      }

      if (!!options.context) {
        this.context = options.context;
      }

      if (!!options.params) {
        this.params = options.params;
      }
    } // If no headers have been passed in, construct a new HttpHeaders instance.


    if (!this.headers) {
      this.headers = new HttpHeaders();
    } // If no context have been passed in, construct a new HttpContext instance.


    if (!this.context) {
      this.context = new HttpContext();
    } // If no parameters have been passed in, construct a new HttpUrlEncodedParams instance.


    if (!this.params) {
      this.params = new HttpParams();
      this.urlWithParams = url;
    } else {
      // Encode the parameters to a string in preparation for inclusion in the URL.
      const params = this.params.toString();

      if (params.length === 0) {
        // No parameters, the visible URL is just the URL given at creation time.
        this.urlWithParams = url;
      } else {
        // Does the URL already have query parameters? Look for '?'.
        const qIdx = url.indexOf('?'); // There are 3 cases to handle:
        // 1) No existing parameters -> append '?' followed by params.
        // 2) '?' exists and is followed by existing query string ->
        //    append '&' followed by params.
        // 3) '?' exists at the end of the url -> append params directly.
        // This basically amounts to determining the character, if any, with
        // which to join the URL and parameters.

        const sep = qIdx === -1 ? '?' : qIdx < url.length - 1 ? '&' : '';
        this.urlWithParams = url + sep + params;
      }
    }
  }
  /**
   * Transform the free-form body into a serialized format suitable for
   * transmission to the server.
   */


  serializeBody() {
    // If no body is present, no need to serialize it.
    if (this.body === null) {
      return null;
    } // Check whether the body is already in a serialized form. If so,
    // it can just be returned directly.


    if (isArrayBuffer(this.body) || isBlob(this.body) || isFormData(this.body) || isUrlSearchParams(this.body) || typeof this.body === 'string') {
      return this.body;
    } // Check whether the body is an instance of HttpUrlEncodedParams.


    if (this.body instanceof HttpParams) {
      return this.body.toString();
    } // Check whether the body is an object or array, and serialize with JSON if so.


    if (typeof this.body === 'object' || typeof this.body === 'boolean' || Array.isArray(this.body)) {
      return JSON.stringify(this.body);
    } // Fall back on toString() for everything else.


    return this.body.toString();
  }
  /**
   * Examine the body and attempt to infer an appropriate MIME type
   * for it.
   *
   * If no such type can be inferred, this method will return `null`.
   */


  detectContentTypeHeader() {
    // An empty body has no content type.
    if (this.body === null) {
      return null;
    } // FormData bodies rely on the browser's content type assignment.


    if (isFormData(this.body)) {
      return null;
    } // Blobs usually have their own content type. If it doesn't, then
    // no type can be inferred.


    if (isBlob(this.body)) {
      return this.body.type || null;
    } // Array buffers have unknown contents and thus no type can be inferred.


    if (isArrayBuffer(this.body)) {
      return null;
    } // Technically, strings could be a form of JSON data, but it's safe enough
    // to assume they're plain strings.


    if (typeof this.body === 'string') {
      return 'text/plain';
    } // `HttpUrlEncodedParams` has its own content-type.


    if (this.body instanceof HttpParams) {
      return 'application/x-www-form-urlencoded;charset=UTF-8';
    } // Arrays, objects, boolean and numbers will be encoded as JSON.


    if (typeof this.body === 'object' || typeof this.body === 'number' || typeof this.body === 'boolean') {
      return 'application/json';
    } // No type could be inferred.


    return null;
  }

  clone(update = {}) {
    var _a; // For method, url, and responseType, take the current value unless
    // it is overridden in the update hash.


    const method = update.method || this.method;
    const url = update.url || this.url;
    const responseType = update.responseType || this.responseType; // The body is somewhat special - a `null` value in update.body means
    // whatever current body is present is being overridden with an empty
    // body, whereas an `undefined` value in update.body implies no
    // override.

    const body = update.body !== undefined ? update.body : this.body; // Carefully handle the boolean options to differentiate between
    // `false` and `undefined` in the update args.

    const withCredentials = update.withCredentials !== undefined ? update.withCredentials : this.withCredentials;
    const reportProgress = update.reportProgress !== undefined ? update.reportProgress : this.reportProgress; // Headers and params may be appended to if `setHeaders` or
    // `setParams` are used.

    let headers = update.headers || this.headers;
    let params = update.params || this.params; // Pass on context if needed

    const context = (_a = update.context) !== null && _a !== void 0 ? _a : this.context; // Check whether the caller has asked to add headers.

    if (update.setHeaders !== undefined) {
      // Set every requested header.
      headers = Object.keys(update.setHeaders).reduce((headers, name) => headers.set(name, update.setHeaders[name]), headers);
    } // Check whether the caller has asked to set params.


    if (update.setParams) {
      // Set every requested param.
      params = Object.keys(update.setParams).reduce((params, param) => params.set(param, update.setParams[param]), params);
    } // Finally, construct the new HttpRequest using the pieces from above.


    return new HttpRequest(method, url, body, {
      params,
      headers,
      context,
      reportProgress,
      responseType,
      withCredentials
    });
  }

}
/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */

/**
 * Type enumeration for the different kinds of `HttpEvent`.
 *
 * @publicApi
 */


var HttpEventType;

(function (HttpEventType) {
  /**
   * The request was sent out over the wire.
   */
  HttpEventType[HttpEventType["Sent"] = 0] = "Sent";
  /**
   * An upload progress event was received.
   */

  HttpEventType[HttpEventType["UploadProgress"] = 1] = "UploadProgress";
  /**
   * The response status code and headers were received.
   */

  HttpEventType[HttpEventType["ResponseHeader"] = 2] = "ResponseHeader";
  /**
   * A download progress event was received.
   */

  HttpEventType[HttpEventType["DownloadProgress"] = 3] = "DownloadProgress";
  /**
   * The full response including the body was received.
   */

  HttpEventType[HttpEventType["Response"] = 4] = "Response";
  /**
   * A custom event from an interceptor or a backend.
   */

  HttpEventType[HttpEventType["User"] = 5] = "User";
})(HttpEventType || (HttpEventType = {}));
/**
 * Base class for both `HttpResponse` and `HttpHeaderResponse`.
 *
 * @publicApi
 */


class HttpResponseBase {
  /**
   * Super-constructor for all responses.
   *
   * The single parameter accepted is an initialization hash. Any properties
   * of the response passed there will override the default values.
   */
  constructor(init, defaultStatus = 200
  /* Ok */
  , defaultStatusText = 'OK') {
    // If the hash has values passed, use them to initialize the response.
    // Otherwise use the default values.
    this.headers = init.headers || new HttpHeaders();
    this.status = init.status !== undefined ? init.status : defaultStatus;
    this.statusText = init.statusText || defaultStatusText;
    this.url = init.url || null; // Cache the ok value to avoid defining a getter.

    this.ok = this.status >= 200 && this.status < 300;
  }

}
/**
 * A partial HTTP response which only includes the status and header data,
 * but no response body.
 *
 * `HttpHeaderResponse` is a `HttpEvent` available on the response
 * event stream, only when progress events are requested.
 *
 * @publicApi
 */


class HttpHeaderResponse extends HttpResponseBase {
  /**
   * Create a new `HttpHeaderResponse` with the given parameters.
   */
  constructor(init = {}) {
    super(init);
    this.type = HttpEventType.ResponseHeader;
  }
  /**
   * Copy this `HttpHeaderResponse`, overriding its contents with the
   * given parameter hash.
   */


  clone(update = {}) {
    // Perform a straightforward initialization of the new HttpHeaderResponse,
    // overriding the current parameters with new ones if given.
    return new HttpHeaderResponse({
      headers: update.headers || this.headers,
      status: update.status !== undefined ? update.status : this.status,
      statusText: update.statusText || this.statusText,
      url: update.url || this.url || undefined
    });
  }

}
/**
 * A full HTTP response, including a typed response body (which may be `null`
 * if one was not returned).
 *
 * `HttpResponse` is a `HttpEvent` available on the response event
 * stream.
 *
 * @publicApi
 */


class HttpResponse extends HttpResponseBase {
  /**
   * Construct a new `HttpResponse`.
   */
  constructor(init = {}) {
    super(init);
    this.type = HttpEventType.Response;
    this.body = init.body !== undefined ? init.body : null;
  }

  clone(update = {}) {
    return new HttpResponse({
      body: update.body !== undefined ? update.body : this.body,
      headers: update.headers || this.headers,
      status: update.status !== undefined ? update.status : this.status,
      statusText: update.statusText || this.statusText,
      url: update.url || this.url || undefined
    });
  }

}
/**
 * A response that represents an error or failure, either from a
 * non-successful HTTP status, an error while executing the request,
 * or some other failure which occurred during the parsing of the response.
 *
 * Any error returned on the `Observable` response stream will be
 * wrapped in an `HttpErrorResponse` to provide additional context about
 * the state of the HTTP layer when the error occurred. The error property
 * will contain either a wrapped Error object or the error response returned
 * from the server.
 *
 * @publicApi
 */


class HttpErrorResponse extends HttpResponseBase {
  constructor(init) {
    // Initialize with a default status of 0 / Unknown Error.
    super(init, 0, 'Unknown Error');
    this.name = 'HttpErrorResponse';
    /**
     * Errors are never okay, even when the status code is in the 2xx success range.
     */

    this.ok = false; // If the response was successful, then this was a parse error. Otherwise, it was
    // a protocol-level failure of some sort. Either the request failed in transit
    // or the server returned an unsuccessful status code.

    if (this.status >= 200 && this.status < 300) {
      this.message = `Http failure during parsing for ${init.url || '(unknown url)'}`;
    } else {
      this.message = `Http failure response for ${init.url || '(unknown url)'}: ${init.status} ${init.statusText}`;
    }

    this.error = init.error || null;
  }

}
/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */

/**
 * Constructs an instance of `HttpRequestOptions<T>` from a source `HttpMethodOptions` and
 * the given `body`. This function clones the object and adds the body.
 *
 * Note that the `responseType` *options* value is a String that identifies the
 * single data type of the response.
 * A single overload version of the method handles each response type.
 * The value of `responseType` cannot be a union, as the combined signature could imply.
 *
 */


function addBody(options, body) {
  return {
    body,
    headers: options.headers,
    context: options.context,
    observe: options.observe,
    params: options.params,
    reportProgress: options.reportProgress,
    responseType: options.responseType,
    withCredentials: options.withCredentials
  };
}
/**
 * Performs HTTP requests.
 * This service is available as an injectable class, with methods to perform HTTP requests.
 * Each request method has multiple signatures, and the return type varies based on
 * the signature that is called (mainly the values of `observe` and `responseType`).
 *
 * Note that the `responseType` *options* value is a String that identifies the
 * single data type of the response.
 * A single overload version of the method handles each response type.
 * The value of `responseType` cannot be a union, as the combined signature could imply.

 *
 * @usageNotes
 * Sample HTTP requests for the [Tour of Heroes](/tutorial/toh-pt0) application.
 *
 * ### HTTP Request Example
 *
 * ```
 *  // GET heroes whose name contains search term
 * searchHeroes(term: string): observable<Hero[]>{
 *
 *  const params = new HttpParams({fromString: 'name=term'});
 *    return this.httpClient.request('GET', this.heroesUrl, {responseType:'json', params});
 * }
 * ```
 *
 * Alternatively, the parameter string can be used without invoking HttpParams
 * by directly joining to the URL.
 * ```
 * this.httpClient.request('GET', this.heroesUrl + '?' + 'name=term', {responseType:'json'});
 * ```
 *
 *
 * ### JSONP Example
 * ```
 * requestJsonp(url, callback = 'callback') {
 *  return this.httpClient.jsonp(this.heroesURL, callback);
 * }
 * ```
 *
 * ### PATCH Example
 * ```
 * // PATCH one of the heroes' name
 * patchHero (id: number, heroName: string): Observable<{}> {
 * const url = `${this.heroesUrl}/${id}`;   // PATCH api/heroes/42
 *  return this.httpClient.patch(url, {name: heroName}, httpOptions)
 *    .pipe(catchError(this.handleError('patchHero')));
 * }
 * ```
 *
 * @see [HTTP Guide](guide/http)
 * @see [HTTP Request](api/common/http/HttpRequest)
 *
 * @publicApi
 */


class HttpClient {
  constructor(handler) {
    this.handler = handler;
  }
  /**
   * Constructs an observable for a generic HTTP request that, when subscribed,
   * fires the request through the chain of registered interceptors and on to the
   * server.
   *
   * You can pass an `HttpRequest` directly as the only parameter. In this case,
   * the call returns an observable of the raw `HttpEvent` stream.
   *
   * Alternatively you can pass an HTTP method as the first parameter,
   * a URL string as the second, and an options hash containing the request body as the third.
   * See `addBody()`. In this case, the specified `responseType` and `observe` options determine the
   * type of returned observable.
   *   * The `responseType` value determines how a successful response body is parsed.
   *   * If `responseType` is the default `json`, you can pass a type interface for the resulting
   * object as a type parameter to the call.
   *
   * The `observe` value determines the return type, according to what you are interested in
   * observing.
   *   * An `observe` value of events returns an observable of the raw `HttpEvent` stream, including
   * progress events by default.
   *   * An `observe` value of response returns an observable of `HttpResponse<T>`,
   * where the `T` parameter depends on the `responseType` and any optionally provided type
   * parameter.
   *   * An `observe` value of body returns an observable of `<T>` with the same `T` body type.
   *
   */


  request(first, url, options = {}) {
    let req; // First, check whether the primary argument is an instance of `HttpRequest`.

    if (first instanceof HttpRequest) {
      // It is. The other arguments must be undefined (per the signatures) and can be
      // ignored.
      req = first;
    } else {
      // It's a string, so it represents a URL. Construct a request based on it,
      // and incorporate the remaining arguments (assuming `GET` unless a method is
      // provided.
      // Figure out the headers.
      let headers = undefined;

      if (options.headers instanceof HttpHeaders) {
        headers = options.headers;
      } else {
        headers = new HttpHeaders(options.headers);
      } // Sort out parameters.


      let params = undefined;

      if (!!options.params) {
        if (options.params instanceof HttpParams) {
          params = options.params;
        } else {
          params = new HttpParams({
            fromObject: options.params
          });
        }
      } // Construct the request.


      req = new HttpRequest(first, url, options.body !== undefined ? options.body : null, {
        headers,
        context: options.context,
        params,
        reportProgress: options.reportProgress,
        // By default, JSON is assumed to be returned for all calls.
        responseType: options.responseType || 'json',
        withCredentials: options.withCredentials
      });
    } // Start with an Observable.of() the initial request, and run the handler (which
    // includes all interceptors) inside a concatMap(). This way, the handler runs
    // inside an Observable chain, which causes interceptors to be re-run on every
    // subscription (this also makes retries re-run the handler, including interceptors).


    const events$ = (0,rxjs__WEBPACK_IMPORTED_MODULE_0__.of)(req).pipe((0,rxjs_operators__WEBPACK_IMPORTED_MODULE_1__.concatMap)(req => this.handler.handle(req))); // If coming via the API signature which accepts a previously constructed HttpRequest,
    // the only option is to get the event stream. Otherwise, return the event stream if
    // that is what was requested.

    if (first instanceof HttpRequest || options.observe === 'events') {
      return events$;
    } // The requested stream contains either the full response or the body. In either
    // case, the first step is to filter the event stream to extract a stream of
    // responses(s).


    const res$ = events$.pipe((0,rxjs_operators__WEBPACK_IMPORTED_MODULE_2__.filter)(event => event instanceof HttpResponse)); // Decide which stream to return.

    switch (options.observe || 'body') {
      case 'body':
        // The requested stream is the body. Map the response stream to the response
        // body. This could be done more simply, but a misbehaving interceptor might
        // transform the response body into a different format and ignore the requested
        // responseType. Guard against this by validating that the response is of the
        // requested type.
        switch (req.responseType) {
          case 'arraybuffer':
            return res$.pipe((0,rxjs_operators__WEBPACK_IMPORTED_MODULE_3__.map)(res => {
              // Validate that the body is an ArrayBuffer.
              if (res.body !== null && !(res.body instanceof ArrayBuffer)) {
                throw new Error('Response is not an ArrayBuffer.');
              }

              return res.body;
            }));

          case 'blob':
            return res$.pipe((0,rxjs_operators__WEBPACK_IMPORTED_MODULE_3__.map)(res => {
              // Validate that the body is a Blob.
              if (res.body !== null && !(res.body instanceof Blob)) {
                throw new Error('Response is not a Blob.');
              }

              return res.body;
            }));

          case 'text':
            return res$.pipe((0,rxjs_operators__WEBPACK_IMPORTED_MODULE_3__.map)(res => {
              // Validate that the body is a string.
              if (res.body !== null && typeof res.body !== 'string') {
                throw new Error('Response is not a string.');
              }

              return res.body;
            }));

          case 'json':
          default:
            // No validation needed for JSON responses, as they can be of any type.
            return res$.pipe((0,rxjs_operators__WEBPACK_IMPORTED_MODULE_3__.map)(res => res.body));
        }

      case 'response':
        // The response stream was requested directly, so return it.
        return res$;

      default:
        // Guard against new future observe types being added.
        throw new Error(`Unreachable: unhandled observe type ${options.observe}}`);
    }
  }
  /**
   * Constructs an observable that, when subscribed, causes the configured
   * `DELETE` request to execute on the server. See the individual overloads for
   * details on the return type.
   *
   * @param url     The endpoint URL.
   * @param options The HTTP options to send with the request.
   *
   */


  delete(url, options = {}) {
    return this.request('DELETE', url, options);
  }
  /**
   * Constructs an observable that, when subscribed, causes the configured
   * `GET` request to execute on the server. See the individual overloads for
   * details on the return type.
   */


  get(url, options = {}) {
    return this.request('GET', url, options);
  }
  /**
   * Constructs an observable that, when subscribed, causes the configured
   * `HEAD` request to execute on the server. The `HEAD` method returns
   * meta information about the resource without transferring the
   * resource itself. See the individual overloads for
   * details on the return type.
   */


  head(url, options = {}) {
    return this.request('HEAD', url, options);
  }
  /**
   * Constructs an `Observable` that, when subscribed, causes a request with the special method
   * `JSONP` to be dispatched via the interceptor pipeline.
   * The [JSONP pattern](https://en.wikipedia.org/wiki/JSONP) works around limitations of certain
   * API endpoints that don't support newer,
   * and preferable [CORS](https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS) protocol.
   * JSONP treats the endpoint API as a JavaScript file and tricks the browser to process the
   * requests even if the API endpoint is not located on the same domain (origin) as the client-side
   * application making the request.
   * The endpoint API must support JSONP callback for JSONP requests to work.
   * The resource API returns the JSON response wrapped in a callback function.
   * You can pass the callback function name as one of the query parameters.
   * Note that JSONP requests can only be used with `GET` requests.
   *
   * @param url The resource URL.
   * @param callbackParam The callback function name.
   *
   */


  jsonp(url, callbackParam) {
    return this.request('JSONP', url, {
      params: new HttpParams().append(callbackParam, 'JSONP_CALLBACK'),
      observe: 'body',
      responseType: 'json'
    });
  }
  /**
   * Constructs an `Observable` that, when subscribed, causes the configured
   * `OPTIONS` request to execute on the server. This method allows the client
   * to determine the supported HTTP methods and other capabilities of an endpoint,
   * without implying a resource action. See the individual overloads for
   * details on the return type.
   */


  options(url, options = {}) {
    return this.request('OPTIONS', url, options);
  }
  /**
   * Constructs an observable that, when subscribed, causes the configured
   * `PATCH` request to execute on the server. See the individual overloads for
   * details on the return type.
   */


  patch(url, body, options = {}) {
    return this.request('PATCH', url, addBody(options, body));
  }
  /**
   * Constructs an observable that, when subscribed, causes the configured
   * `POST` request to execute on the server. The server responds with the location of
   * the replaced resource. See the individual overloads for
   * details on the return type.
   */


  post(url, body, options = {}) {
    return this.request('POST', url, addBody(options, body));
  }
  /**
   * Constructs an observable that, when subscribed, causes the configured
   * `PUT` request to execute on the server. The `PUT` method replaces an existing resource
   * with a new set of values.
   * See the individual overloads for details on the return type.
   */


  put(url, body, options = {}) {
    return this.request('PUT', url, addBody(options, body));
  }

}

HttpClient.ɵfac = function HttpClient_Factory(t) {
  return new (t || HttpClient)(_angular_core__WEBPACK_IMPORTED_MODULE_4__["ɵɵinject"](HttpHandler));
};

HttpClient.ɵprov = /* @__PURE__ */_angular_core__WEBPACK_IMPORTED_MODULE_4__["ɵɵdefineInjectable"]({
  token: HttpClient,
  factory: HttpClient.ɵfac
});

(function () {
  (typeof ngDevMode === "undefined" || ngDevMode) && _angular_core__WEBPACK_IMPORTED_MODULE_4__["ɵsetClassMetadata"](HttpClient, [{
    type: _angular_core__WEBPACK_IMPORTED_MODULE_4__.Injectable
  }], function () {
    return [{
      type: HttpHandler
    }];
  }, null);
})();
/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */

/**
 * `HttpHandler` which applies an `HttpInterceptor` to an `HttpRequest`.
 *
 *
 */


class HttpInterceptorHandler {
  constructor(next, interceptor) {
    this.next = next;
    this.interceptor = interceptor;
  }

  handle(req) {
    return this.interceptor.intercept(req, this.next);
  }

}
/**
 * A multi-provider token that represents the array of registered
 * `HttpInterceptor` objects.
 *
 * @publicApi
 */


const HTTP_INTERCEPTORS = new _angular_core__WEBPACK_IMPORTED_MODULE_4__.InjectionToken('HTTP_INTERCEPTORS');

class NoopInterceptor {
  intercept(req, next) {
    return next.handle(req);
  }

}

NoopInterceptor.ɵfac = function NoopInterceptor_Factory(t) {
  return new (t || NoopInterceptor)();
};

NoopInterceptor.ɵprov = /* @__PURE__ */_angular_core__WEBPACK_IMPORTED_MODULE_4__["ɵɵdefineInjectable"]({
  token: NoopInterceptor,
  factory: NoopInterceptor.ɵfac
});

(function () {
  (typeof ngDevMode === "undefined" || ngDevMode) && _angular_core__WEBPACK_IMPORTED_MODULE_4__["ɵsetClassMetadata"](NoopInterceptor, [{
    type: _angular_core__WEBPACK_IMPORTED_MODULE_4__.Injectable
  }], null, null);
})();
/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
// Every request made through JSONP needs a callback name that's unique across the
// whole page. Each request is assigned an id and the callback name is constructed
// from that. The next id to be assigned is tracked in a global variable here that
// is shared among all applications on the page.


let nextRequestId = 0;
/**
 * When a pending <script> is unsubscribed we'll move it to this document, so it won't be
 * executed.
 */

let foreignDocument; // Error text given when a JSONP script is injected, but doesn't invoke the callback
// passed in its URL.

const JSONP_ERR_NO_CALLBACK = 'JSONP injected script did not invoke callback.'; // Error text given when a request is passed to the JsonpClientBackend that doesn't
// have a request method JSONP.

const JSONP_ERR_WRONG_METHOD = 'JSONP requests must use JSONP request method.';
const JSONP_ERR_WRONG_RESPONSE_TYPE = 'JSONP requests must use Json response type.';
/**
 * DI token/abstract type representing a map of JSONP callbacks.
 *
 * In the browser, this should always be the `window` object.
 *
 *
 */

class JsonpCallbackContext {}
/**
 * Processes an `HttpRequest` with the JSONP method,
 * by performing JSONP style requests.
 * @see `HttpHandler`
 * @see `HttpXhrBackend`
 *
 * @publicApi
 */


class JsonpClientBackend {
  constructor(callbackMap, document) {
    this.callbackMap = callbackMap;
    this.document = document;
    /**
     * A resolved promise that can be used to schedule microtasks in the event handlers.
     */

    this.resolvedPromise = Promise.resolve();
  }
  /**
   * Get the name of the next callback method, by incrementing the global `nextRequestId`.
   */


  nextCallback() {
    return `ng_jsonp_callback_${nextRequestId++}`;
  }
  /**
   * Processes a JSONP request and returns an event stream of the results.
   * @param req The request object.
   * @returns An observable of the response events.
   *
   */


  handle(req) {
    // Firstly, check both the method and response type. If either doesn't match
    // then the request was improperly routed here and cannot be handled.
    if (req.method !== 'JSONP') {
      throw new Error(JSONP_ERR_WRONG_METHOD);
    } else if (req.responseType !== 'json') {
      throw new Error(JSONP_ERR_WRONG_RESPONSE_TYPE);
    } // Everything else happens inside the Observable boundary.


    return new rxjs__WEBPACK_IMPORTED_MODULE_5__.Observable(observer => {
      // The first step to make a request is to generate the callback name, and replace the
      // callback placeholder in the URL with the name. Care has to be taken here to ensure
      // a trailing &, if matched, gets inserted back into the URL in the correct place.
      const callback = this.nextCallback();
      const url = req.urlWithParams.replace(/=JSONP_CALLBACK(&|$)/, `=${callback}$1`); // Construct the <script> tag and point it at the URL.

      const node = this.document.createElement('script');
      node.src = url; // A JSONP request requires waiting for multiple callbacks. These variables
      // are closed over and track state across those callbacks.
      // The response object, if one has been received, or null otherwise.

      let body = null; // Whether the response callback has been called.

      let finished = false; // Set the response callback in this.callbackMap (which will be the window
      // object in the browser. The script being loaded via the <script> tag will
      // eventually call this callback.

      this.callbackMap[callback] = data => {
        // Data has been received from the JSONP script. Firstly, delete this callback.
        delete this.callbackMap[callback]; // Set state to indicate data was received.

        body = data;
        finished = true;
      }; // cleanup() is a utility closure that removes the <script> from the page and
      // the response callback from the window. This logic is used in both the
      // success, error, and cancellation paths, so it's extracted out for convenience.


      const cleanup = () => {
        // Remove the <script> tag if it's still on the page.
        if (node.parentNode) {
          node.parentNode.removeChild(node);
        } // Remove the response callback from the callbackMap (window object in the
        // browser).


        delete this.callbackMap[callback];
      }; // onLoad() is the success callback which runs after the response callback
      // if the JSONP script loads successfully. The event itself is unimportant.
      // If something went wrong, onLoad() may run without the response callback
      // having been invoked.


      const onLoad = event => {
        // We wrap it in an extra Promise, to ensure the microtask
        // is scheduled after the loaded endpoint has executed any potential microtask itself,
        // which is not guaranteed in Internet Explorer and EdgeHTML. See issue #39496
        this.resolvedPromise.then(() => {
          // Cleanup the page.
          cleanup(); // Check whether the response callback has run.

          if (!finished) {
            // It hasn't, something went wrong with the request. Return an error via
            // the Observable error path. All JSONP errors have status 0.
            observer.error(new HttpErrorResponse({
              url,
              status: 0,
              statusText: 'JSONP Error',
              error: new Error(JSONP_ERR_NO_CALLBACK)
            }));
            return;
          } // Success. body either contains the response body or null if none was
          // returned.


          observer.next(new HttpResponse({
            body,
            status: 200
            /* Ok */
            ,
            statusText: 'OK',
            url
          })); // Complete the stream, the response is over.

          observer.complete();
        });
      }; // onError() is the error callback, which runs if the script returned generates
      // a Javascript error. It emits the error via the Observable error channel as
      // a HttpErrorResponse.


      const onError = error => {
        cleanup(); // Wrap the error in a HttpErrorResponse.

        observer.error(new HttpErrorResponse({
          error,
          status: 0,
          statusText: 'JSONP Error',
          url
        }));
      }; // Subscribe to both the success (load) and error events on the <script> tag,
      // and add it to the page.


      node.addEventListener('load', onLoad);
      node.addEventListener('error', onError);
      this.document.body.appendChild(node); // The request has now been successfully sent.

      observer.next({
        type: HttpEventType.Sent
      }); // Cancellation handler.

      return () => {
        if (!finished) {
          this.removeListeners(node);
        } // And finally, clean up the page.


        cleanup();
      };
    });
  }

  removeListeners(script) {
    // Issue #34818
    // Changing <script>'s ownerDocument will prevent it from execution.
    // https://html.spec.whatwg.org/multipage/scripting.html#execute-the-script-block
    if (!foreignDocument) {
      foreignDocument = this.document.implementation.createHTMLDocument();
    }

    foreignDocument.adoptNode(script);
  }

}

JsonpClientBackend.ɵfac = function JsonpClientBackend_Factory(t) {
  return new (t || JsonpClientBackend)(_angular_core__WEBPACK_IMPORTED_MODULE_4__["ɵɵinject"](JsonpCallbackContext), _angular_core__WEBPACK_IMPORTED_MODULE_4__["ɵɵinject"](_angular_common__WEBPACK_IMPORTED_MODULE_6__.DOCUMENT));
};

JsonpClientBackend.ɵprov = /* @__PURE__ */_angular_core__WEBPACK_IMPORTED_MODULE_4__["ɵɵdefineInjectable"]({
  token: JsonpClientBackend,
  factory: JsonpClientBackend.ɵfac
});

(function () {
  (typeof ngDevMode === "undefined" || ngDevMode) && _angular_core__WEBPACK_IMPORTED_MODULE_4__["ɵsetClassMetadata"](JsonpClientBackend, [{
    type: _angular_core__WEBPACK_IMPORTED_MODULE_4__.Injectable
  }], function () {
    return [{
      type: JsonpCallbackContext
    }, {
      type: undefined,
      decorators: [{
        type: _angular_core__WEBPACK_IMPORTED_MODULE_4__.Inject,
        args: [_angular_common__WEBPACK_IMPORTED_MODULE_6__.DOCUMENT]
      }]
    }];
  }, null);
})();
/**
 * Identifies requests with the method JSONP and
 * shifts them to the `JsonpClientBackend`.
 *
 * @see `HttpInterceptor`
 *
 * @publicApi
 */


class JsonpInterceptor {
  constructor(jsonp) {
    this.jsonp = jsonp;
  }
  /**
   * Identifies and handles a given JSONP request.
   * @param req The outgoing request object to handle.
   * @param next The next interceptor in the chain, or the backend
   * if no interceptors remain in the chain.
   * @returns An observable of the event stream.
   */


  intercept(req, next) {
    if (req.method === 'JSONP') {
      return this.jsonp.handle(req);
    } // Fall through for normal HTTP requests.


    return next.handle(req);
  }

}

JsonpInterceptor.ɵfac = function JsonpInterceptor_Factory(t) {
  return new (t || JsonpInterceptor)(_angular_core__WEBPACK_IMPORTED_MODULE_4__["ɵɵinject"](JsonpClientBackend));
};

JsonpInterceptor.ɵprov = /* @__PURE__ */_angular_core__WEBPACK_IMPORTED_MODULE_4__["ɵɵdefineInjectable"]({
  token: JsonpInterceptor,
  factory: JsonpInterceptor.ɵfac
});

(function () {
  (typeof ngDevMode === "undefined" || ngDevMode) && _angular_core__WEBPACK_IMPORTED_MODULE_4__["ɵsetClassMetadata"](JsonpInterceptor, [{
    type: _angular_core__WEBPACK_IMPORTED_MODULE_4__.Injectable
  }], function () {
    return [{
      type: JsonpClientBackend
    }];
  }, null);
})();

const XSSI_PREFIX = /^\)\]\}',?\n/;
/**
 * Determine an appropriate URL for the response, by checking either
 * XMLHttpRequest.responseURL or the X-Request-URL header.
 */

function getResponseUrl(xhr) {
  if ('responseURL' in xhr && xhr.responseURL) {
    return xhr.responseURL;
  }

  if (/^X-Request-URL:/m.test(xhr.getAllResponseHeaders())) {
    return xhr.getResponseHeader('X-Request-URL');
  }

  return null;
}
/**
 * Uses `XMLHttpRequest` to send requests to a backend server.
 * @see `HttpHandler`
 * @see `JsonpClientBackend`
 *
 * @publicApi
 */


class HttpXhrBackend {
  constructor(xhrFactory) {
    this.xhrFactory = xhrFactory;
  }
  /**
   * Processes a request and returns a stream of response events.
   * @param req The request object.
   * @returns An observable of the response events.
   */


  handle(req) {
    // Quick check to give a better error message when a user attempts to use
    // HttpClient.jsonp() without installing the HttpClientJsonpModule
    if (req.method === 'JSONP') {
      throw new Error(`Attempted to construct Jsonp request without HttpClientJsonpModule installed.`);
    } // Everything happens on Observable subscription.


    return new rxjs__WEBPACK_IMPORTED_MODULE_5__.Observable(observer => {
      // Start by setting up the XHR object with request method, URL, and withCredentials flag.
      const xhr = this.xhrFactory.build();
      xhr.open(req.method, req.urlWithParams);

      if (!!req.withCredentials) {
        xhr.withCredentials = true;
      } // Add all the requested headers.


      req.headers.forEach((name, values) => xhr.setRequestHeader(name, values.join(','))); // Add an Accept header if one isn't present already.

      if (!req.headers.has('Accept')) {
        xhr.setRequestHeader('Accept', 'application/json, text/plain, */*');
      } // Auto-detect the Content-Type header if one isn't present already.


      if (!req.headers.has('Content-Type')) {
        const detectedType = req.detectContentTypeHeader(); // Sometimes Content-Type detection fails.

        if (detectedType !== null) {
          xhr.setRequestHeader('Content-Type', detectedType);
        }
      } // Set the responseType if one was requested.


      if (req.responseType) {
        const responseType = req.responseType.toLowerCase(); // JSON responses need to be processed as text. This is because if the server
        // returns an XSSI-prefixed JSON response, the browser will fail to parse it,
        // xhr.response will be null, and xhr.responseText cannot be accessed to
        // retrieve the prefixed JSON data in order to strip the prefix. Thus, all JSON
        // is parsed by first requesting text and then applying JSON.parse.

        xhr.responseType = responseType !== 'json' ? responseType : 'text';
      } // Serialize the request body if one is present. If not, this will be set to null.


      const reqBody = req.serializeBody(); // If progress events are enabled, response headers will be delivered
      // in two events - the HttpHeaderResponse event and the full HttpResponse
      // event. However, since response headers don't change in between these
      // two events, it doesn't make sense to parse them twice. So headerResponse
      // caches the data extracted from the response whenever it's first parsed,
      // to ensure parsing isn't duplicated.

      let headerResponse = null; // partialFromXhr extracts the HttpHeaderResponse from the current XMLHttpRequest
      // state, and memoizes it into headerResponse.

      const partialFromXhr = () => {
        if (headerResponse !== null) {
          return headerResponse;
        }

        const statusText = xhr.statusText || 'OK'; // Parse headers from XMLHttpRequest - this step is lazy.

        const headers = new HttpHeaders(xhr.getAllResponseHeaders()); // Read the response URL from the XMLHttpResponse instance and fall back on the
        // request URL.

        const url = getResponseUrl(xhr) || req.url; // Construct the HttpHeaderResponse and memoize it.

        headerResponse = new HttpHeaderResponse({
          headers,
          status: xhr.status,
          statusText,
          url
        });
        return headerResponse;
      }; // Next, a few closures are defined for the various events which XMLHttpRequest can
      // emit. This allows them to be unregistered as event listeners later.
      // First up is the load event, which represents a response being fully available.


      const onLoad = () => {
        // Read response state from the memoized partial data.
        let {
          headers,
          status,
          statusText,
          url
        } = partialFromXhr(); // The body will be read out if present.

        let body = null;

        if (status !== 204
        /* NoContent */
        ) {
          // Use XMLHttpRequest.response if set, responseText otherwise.
          body = typeof xhr.response === 'undefined' ? xhr.responseText : xhr.response;
        } // Normalize another potential bug (this one comes from CORS).


        if (status === 0) {
          status = !!body ? 200
          /* Ok */
          : 0;
        } // ok determines whether the response will be transmitted on the event or
        // error channel. Unsuccessful status codes (not 2xx) will always be errors,
        // but a successful status code can still result in an error if the user
        // asked for JSON data and the body cannot be parsed as such.


        let ok = status >= 200 && status < 300; // Check whether the body needs to be parsed as JSON (in many cases the browser
        // will have done that already).

        if (req.responseType === 'json' && typeof body === 'string') {
          // Save the original body, before attempting XSSI prefix stripping.
          const originalBody = body;
          body = body.replace(XSSI_PREFIX, '');

          try {
            // Attempt the parse. If it fails, a parse error should be delivered to the user.
            body = body !== '' ? JSON.parse(body) : null;
          } catch (error) {
            // Since the JSON.parse failed, it's reasonable to assume this might not have been a
            // JSON response. Restore the original body (including any XSSI prefix) to deliver
            // a better error response.
            body = originalBody; // If this was an error request to begin with, leave it as a string, it probably
            // just isn't JSON. Otherwise, deliver the parsing error to the user.

            if (ok) {
              // Even though the response status was 2xx, this is still an error.
              ok = false; // The parse error contains the text of the body that failed to parse.

              body = {
                error,
                text: body
              };
            }
          }
        }

        if (ok) {
          // A successful response is delivered on the event stream.
          observer.next(new HttpResponse({
            body,
            headers,
            status,
            statusText,
            url: url || undefined
          })); // The full body has been received and delivered, no further events
          // are possible. This request is complete.

          observer.complete();
        } else {
          // An unsuccessful request is delivered on the error channel.
          observer.error(new HttpErrorResponse({
            // The error in this case is the response body (error from the server).
            error: body,
            headers,
            status,
            statusText,
            url: url || undefined
          }));
        }
      }; // The onError callback is called when something goes wrong at the network level.
      // Connection timeout, DNS error, offline, etc. These are actual errors, and are
      // transmitted on the error channel.


      const onError = error => {
        const {
          url
        } = partialFromXhr();
        const res = new HttpErrorResponse({
          error,
          status: xhr.status || 0,
          statusText: xhr.statusText || 'Unknown Error',
          url: url || undefined
        });
        observer.error(res);
      }; // The sentHeaders flag tracks whether the HttpResponseHeaders event
      // has been sent on the stream. This is necessary to track if progress
      // is enabled since the event will be sent on only the first download
      // progerss event.


      let sentHeaders = false; // The download progress event handler, which is only registered if
      // progress events are enabled.

      const onDownProgress = event => {
        // Send the HttpResponseHeaders event if it hasn't been sent already.
        if (!sentHeaders) {
          observer.next(partialFromXhr());
          sentHeaders = true;
        } // Start building the download progress event to deliver on the response
        // event stream.


        let progressEvent = {
          type: HttpEventType.DownloadProgress,
          loaded: event.loaded
        }; // Set the total number of bytes in the event if it's available.

        if (event.lengthComputable) {
          progressEvent.total = event.total;
        } // If the request was for text content and a partial response is
        // available on XMLHttpRequest, include it in the progress event
        // to allow for streaming reads.


        if (req.responseType === 'text' && !!xhr.responseText) {
          progressEvent.partialText = xhr.responseText;
        } // Finally, fire the event.


        observer.next(progressEvent);
      }; // The upload progress event handler, which is only registered if
      // progress events are enabled.


      const onUpProgress = event => {
        // Upload progress events are simpler. Begin building the progress
        // event.
        let progress = {
          type: HttpEventType.UploadProgress,
          loaded: event.loaded
        }; // If the total number of bytes being uploaded is available, include
        // it.

        if (event.lengthComputable) {
          progress.total = event.total;
        } // Send the event.


        observer.next(progress);
      }; // By default, register for load and error events.


      xhr.addEventListener('load', onLoad);
      xhr.addEventListener('error', onError);
      xhr.addEventListener('timeout', onError);
      xhr.addEventListener('abort', onError); // Progress events are only enabled if requested.

      if (req.reportProgress) {
        // Download progress is always enabled if requested.
        xhr.addEventListener('progress', onDownProgress); // Upload progress depends on whether there is a body to upload.

        if (reqBody !== null && xhr.upload) {
          xhr.upload.addEventListener('progress', onUpProgress);
        }
      } // Fire the request, and notify the event stream that it was fired.


      xhr.send(reqBody);
      observer.next({
        type: HttpEventType.Sent
      }); // This is the return from the Observable function, which is the
      // request cancellation handler.

      return () => {
        // On a cancellation, remove all registered event listeners.
        xhr.removeEventListener('error', onError);
        xhr.removeEventListener('abort', onError);
        xhr.removeEventListener('load', onLoad);
        xhr.removeEventListener('timeout', onError);

        if (req.reportProgress) {
          xhr.removeEventListener('progress', onDownProgress);

          if (reqBody !== null && xhr.upload) {
            xhr.upload.removeEventListener('progress', onUpProgress);
          }
        } // Finally, abort the in-flight request.


        if (xhr.readyState !== xhr.DONE) {
          xhr.abort();
        }
      };
    });
  }

}

HttpXhrBackend.ɵfac = function HttpXhrBackend_Factory(t) {
  return new (t || HttpXhrBackend)(_angular_core__WEBPACK_IMPORTED_MODULE_4__["ɵɵinject"](_angular_common__WEBPACK_IMPORTED_MODULE_6__.XhrFactory));
};

HttpXhrBackend.ɵprov = /* @__PURE__ */_angular_core__WEBPACK_IMPORTED_MODULE_4__["ɵɵdefineInjectable"]({
  token: HttpXhrBackend,
  factory: HttpXhrBackend.ɵfac
});

(function () {
  (typeof ngDevMode === "undefined" || ngDevMode) && _angular_core__WEBPACK_IMPORTED_MODULE_4__["ɵsetClassMetadata"](HttpXhrBackend, [{
    type: _angular_core__WEBPACK_IMPORTED_MODULE_4__.Injectable
  }], function () {
    return [{
      type: _angular_common__WEBPACK_IMPORTED_MODULE_6__.XhrFactory
    }];
  }, null);
})();
/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */


const XSRF_COOKIE_NAME = new _angular_core__WEBPACK_IMPORTED_MODULE_4__.InjectionToken('XSRF_COOKIE_NAME');
const XSRF_HEADER_NAME = new _angular_core__WEBPACK_IMPORTED_MODULE_4__.InjectionToken('XSRF_HEADER_NAME');
/**
 * Retrieves the current XSRF token to use with the next outgoing request.
 *
 * @publicApi
 */

class HttpXsrfTokenExtractor {}
/**
 * `HttpXsrfTokenExtractor` which retrieves the token from a cookie.
 */


class HttpXsrfCookieExtractor {
  constructor(doc, platform, cookieName) {
    this.doc = doc;
    this.platform = platform;
    this.cookieName = cookieName;
    this.lastCookieString = '';
    this.lastToken = null;
    /**
     * @internal for testing
     */

    this.parseCount = 0;
  }

  getToken() {
    if (this.platform === 'server') {
      return null;
    }

    const cookieString = this.doc.cookie || '';

    if (cookieString !== this.lastCookieString) {
      this.parseCount++;
      this.lastToken = (0,_angular_common__WEBPACK_IMPORTED_MODULE_6__["ɵparseCookieValue"])(cookieString, this.cookieName);
      this.lastCookieString = cookieString;
    }

    return this.lastToken;
  }

}

HttpXsrfCookieExtractor.ɵfac = function HttpXsrfCookieExtractor_Factory(t) {
  return new (t || HttpXsrfCookieExtractor)(_angular_core__WEBPACK_IMPORTED_MODULE_4__["ɵɵinject"](_angular_common__WEBPACK_IMPORTED_MODULE_6__.DOCUMENT), _angular_core__WEBPACK_IMPORTED_MODULE_4__["ɵɵinject"](_angular_core__WEBPACK_IMPORTED_MODULE_4__.PLATFORM_ID), _angular_core__WEBPACK_IMPORTED_MODULE_4__["ɵɵinject"](XSRF_COOKIE_NAME));
};

HttpXsrfCookieExtractor.ɵprov = /* @__PURE__ */_angular_core__WEBPACK_IMPORTED_MODULE_4__["ɵɵdefineInjectable"]({
  token: HttpXsrfCookieExtractor,
  factory: HttpXsrfCookieExtractor.ɵfac
});

(function () {
  (typeof ngDevMode === "undefined" || ngDevMode) && _angular_core__WEBPACK_IMPORTED_MODULE_4__["ɵsetClassMetadata"](HttpXsrfCookieExtractor, [{
    type: _angular_core__WEBPACK_IMPORTED_MODULE_4__.Injectable
  }], function () {
    return [{
      type: undefined,
      decorators: [{
        type: _angular_core__WEBPACK_IMPORTED_MODULE_4__.Inject,
        args: [_angular_common__WEBPACK_IMPORTED_MODULE_6__.DOCUMENT]
      }]
    }, {
      type: undefined,
      decorators: [{
        type: _angular_core__WEBPACK_IMPORTED_MODULE_4__.Inject,
        args: [_angular_core__WEBPACK_IMPORTED_MODULE_4__.PLATFORM_ID]
      }]
    }, {
      type: undefined,
      decorators: [{
        type: _angular_core__WEBPACK_IMPORTED_MODULE_4__.Inject,
        args: [XSRF_COOKIE_NAME]
      }]
    }];
  }, null);
})();
/**
 * `HttpInterceptor` which adds an XSRF token to eligible outgoing requests.
 */


class HttpXsrfInterceptor {
  constructor(tokenService, headerName) {
    this.tokenService = tokenService;
    this.headerName = headerName;
  }

  intercept(req, next) {
    const lcUrl = req.url.toLowerCase(); // Skip both non-mutating requests and absolute URLs.
    // Non-mutating requests don't require a token, and absolute URLs require special handling
    // anyway as the cookie set
    // on our origin is not the same as the token expected by another origin.

    if (req.method === 'GET' || req.method === 'HEAD' || lcUrl.startsWith('http://') || lcUrl.startsWith('https://')) {
      return next.handle(req);
    }

    const token = this.tokenService.getToken(); // Be careful not to overwrite an existing header of the same name.

    if (token !== null && !req.headers.has(this.headerName)) {
      req = req.clone({
        headers: req.headers.set(this.headerName, token)
      });
    }

    return next.handle(req);
  }

}

HttpXsrfInterceptor.ɵfac = function HttpXsrfInterceptor_Factory(t) {
  return new (t || HttpXsrfInterceptor)(_angular_core__WEBPACK_IMPORTED_MODULE_4__["ɵɵinject"](HttpXsrfTokenExtractor), _angular_core__WEBPACK_IMPORTED_MODULE_4__["ɵɵinject"](XSRF_HEADER_NAME));
};

HttpXsrfInterceptor.ɵprov = /* @__PURE__ */_angular_core__WEBPACK_IMPORTED_MODULE_4__["ɵɵdefineInjectable"]({
  token: HttpXsrfInterceptor,
  factory: HttpXsrfInterceptor.ɵfac
});

(function () {
  (typeof ngDevMode === "undefined" || ngDevMode) && _angular_core__WEBPACK_IMPORTED_MODULE_4__["ɵsetClassMetadata"](HttpXsrfInterceptor, [{
    type: _angular_core__WEBPACK_IMPORTED_MODULE_4__.Injectable
  }], function () {
    return [{
      type: HttpXsrfTokenExtractor
    }, {
      type: undefined,
      decorators: [{
        type: _angular_core__WEBPACK_IMPORTED_MODULE_4__.Inject,
        args: [XSRF_HEADER_NAME]
      }]
    }];
  }, null);
})();
/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */

/**
 * An injectable `HttpHandler` that applies multiple interceptors
 * to a request before passing it to the given `HttpBackend`.
 *
 * The interceptors are loaded lazily from the injector, to allow
 * interceptors to themselves inject classes depending indirectly
 * on `HttpInterceptingHandler` itself.
 * @see `HttpInterceptor`
 */


class HttpInterceptingHandler {
  constructor(backend, injector) {
    this.backend = backend;
    this.injector = injector;
    this.chain = null;
  }

  handle(req) {
    if (this.chain === null) {
      const interceptors = this.injector.get(HTTP_INTERCEPTORS, []);
      this.chain = interceptors.reduceRight((next, interceptor) => new HttpInterceptorHandler(next, interceptor), this.backend);
    }

    return this.chain.handle(req);
  }

}

HttpInterceptingHandler.ɵfac = function HttpInterceptingHandler_Factory(t) {
  return new (t || HttpInterceptingHandler)(_angular_core__WEBPACK_IMPORTED_MODULE_4__["ɵɵinject"](HttpBackend), _angular_core__WEBPACK_IMPORTED_MODULE_4__["ɵɵinject"](_angular_core__WEBPACK_IMPORTED_MODULE_4__.Injector));
};

HttpInterceptingHandler.ɵprov = /* @__PURE__ */_angular_core__WEBPACK_IMPORTED_MODULE_4__["ɵɵdefineInjectable"]({
  token: HttpInterceptingHandler,
  factory: HttpInterceptingHandler.ɵfac
});

(function () {
  (typeof ngDevMode === "undefined" || ngDevMode) && _angular_core__WEBPACK_IMPORTED_MODULE_4__["ɵsetClassMetadata"](HttpInterceptingHandler, [{
    type: _angular_core__WEBPACK_IMPORTED_MODULE_4__.Injectable
  }], function () {
    return [{
      type: HttpBackend
    }, {
      type: _angular_core__WEBPACK_IMPORTED_MODULE_4__.Injector
    }];
  }, null);
})();
/**
 * Constructs an `HttpHandler` that applies interceptors
 * to a request before passing it to the given `HttpBackend`.
 *
 * Use as a factory function within `HttpClientModule`.
 *
 *
 */


function interceptingHandler(backend, interceptors = []) {
  if (!interceptors) {
    return backend;
  }

  return interceptors.reduceRight((next, interceptor) => new HttpInterceptorHandler(next, interceptor), backend);
}
/**
 * Factory function that determines where to store JSONP callbacks.
 *
 * Ordinarily JSONP callbacks are stored on the `window` object, but this may not exist
 * in test environments. In that case, callbacks are stored on an anonymous object instead.
 *
 *
 */


function jsonpCallbackContext() {
  if (typeof window === 'object') {
    return window;
  }

  return {};
}
/**
 * Configures XSRF protection support for outgoing requests.
 *
 * For a server that supports a cookie-based XSRF protection system,
 * use directly to configure XSRF protection with the correct
 * cookie and header names.
 *
 * If no names are supplied, the default cookie name is `XSRF-TOKEN`
 * and the default header name is `X-XSRF-TOKEN`.
 *
 * @publicApi
 */


class HttpClientXsrfModule {
  /**
   * Disable the default XSRF protection.
   */
  static disable() {
    return {
      ngModule: HttpClientXsrfModule,
      providers: [{
        provide: HttpXsrfInterceptor,
        useClass: NoopInterceptor
      }]
    };
  }
  /**
   * Configure XSRF protection.
   * @param options An object that can specify either or both
   * cookie name or header name.
   * - Cookie name default is `XSRF-TOKEN`.
   * - Header name default is `X-XSRF-TOKEN`.
   *
   */


  static withOptions(options = {}) {
    return {
      ngModule: HttpClientXsrfModule,
      providers: [options.cookieName ? {
        provide: XSRF_COOKIE_NAME,
        useValue: options.cookieName
      } : [], options.headerName ? {
        provide: XSRF_HEADER_NAME,
        useValue: options.headerName
      } : []]
    };
  }

}

HttpClientXsrfModule.ɵfac = function HttpClientXsrfModule_Factory(t) {
  return new (t || HttpClientXsrfModule)();
};

HttpClientXsrfModule.ɵmod = /* @__PURE__ */_angular_core__WEBPACK_IMPORTED_MODULE_4__["ɵɵdefineNgModule"]({
  type: HttpClientXsrfModule
});
HttpClientXsrfModule.ɵinj = /* @__PURE__ */_angular_core__WEBPACK_IMPORTED_MODULE_4__["ɵɵdefineInjector"]({
  providers: [HttpXsrfInterceptor, {
    provide: HTTP_INTERCEPTORS,
    useExisting: HttpXsrfInterceptor,
    multi: true
  }, {
    provide: HttpXsrfTokenExtractor,
    useClass: HttpXsrfCookieExtractor
  }, {
    provide: XSRF_COOKIE_NAME,
    useValue: 'XSRF-TOKEN'
  }, {
    provide: XSRF_HEADER_NAME,
    useValue: 'X-XSRF-TOKEN'
  }]
});

(function () {
  (typeof ngDevMode === "undefined" || ngDevMode) && _angular_core__WEBPACK_IMPORTED_MODULE_4__["ɵsetClassMetadata"](HttpClientXsrfModule, [{
    type: _angular_core__WEBPACK_IMPORTED_MODULE_4__.NgModule,
    args: [{
      providers: [HttpXsrfInterceptor, {
        provide: HTTP_INTERCEPTORS,
        useExisting: HttpXsrfInterceptor,
        multi: true
      }, {
        provide: HttpXsrfTokenExtractor,
        useClass: HttpXsrfCookieExtractor
      }, {
        provide: XSRF_COOKIE_NAME,
        useValue: 'XSRF-TOKEN'
      }, {
        provide: XSRF_HEADER_NAME,
        useValue: 'X-XSRF-TOKEN'
      }]
    }]
  }], null, null);
})();
/**
 * Configures the [dependency injector](guide/glossary#injector) for `HttpClient`
 * with supporting services for XSRF. Automatically imported by `HttpClientModule`.
 *
 * You can add interceptors to the chain behind `HttpClient` by binding them to the
 * multiprovider for built-in [DI token](guide/glossary#di-token) `HTTP_INTERCEPTORS`.
 *
 * @publicApi
 */


class HttpClientModule {}

HttpClientModule.ɵfac = function HttpClientModule_Factory(t) {
  return new (t || HttpClientModule)();
};

HttpClientModule.ɵmod = /* @__PURE__ */_angular_core__WEBPACK_IMPORTED_MODULE_4__["ɵɵdefineNgModule"]({
  type: HttpClientModule
});
HttpClientModule.ɵinj = /* @__PURE__ */_angular_core__WEBPACK_IMPORTED_MODULE_4__["ɵɵdefineInjector"]({
  providers: [HttpClient, {
    provide: HttpHandler,
    useClass: HttpInterceptingHandler
  }, HttpXhrBackend, {
    provide: HttpBackend,
    useExisting: HttpXhrBackend
  }],
  imports: [[HttpClientXsrfModule.withOptions({
    cookieName: 'XSRF-TOKEN',
    headerName: 'X-XSRF-TOKEN'
  })]]
});

(function () {
  (typeof ngDevMode === "undefined" || ngDevMode) && _angular_core__WEBPACK_IMPORTED_MODULE_4__["ɵsetClassMetadata"](HttpClientModule, [{
    type: _angular_core__WEBPACK_IMPORTED_MODULE_4__.NgModule,
    args: [{
      /**
       * Optional configuration for XSRF protection.
       */
      imports: [HttpClientXsrfModule.withOptions({
        cookieName: 'XSRF-TOKEN',
        headerName: 'X-XSRF-TOKEN'
      })],

      /**
       * Configures the [dependency injector](guide/glossary#injector) where it is imported
       * with supporting services for HTTP communications.
       */
      providers: [HttpClient, {
        provide: HttpHandler,
        useClass: HttpInterceptingHandler
      }, HttpXhrBackend, {
        provide: HttpBackend,
        useExisting: HttpXhrBackend
      }]
    }]
  }], null, null);
})();
/**
 * Configures the [dependency injector](guide/glossary#injector) for `HttpClient`
 * with supporting services for JSONP.
 * Without this module, Jsonp requests reach the backend
 * with method JSONP, where they are rejected.
 *
 * You can add interceptors to the chain behind `HttpClient` by binding them to the
 * multiprovider for built-in [DI token](guide/glossary#di-token) `HTTP_INTERCEPTORS`.
 *
 * @publicApi
 */


class HttpClientJsonpModule {}

HttpClientJsonpModule.ɵfac = function HttpClientJsonpModule_Factory(t) {
  return new (t || HttpClientJsonpModule)();
};

HttpClientJsonpModule.ɵmod = /* @__PURE__ */_angular_core__WEBPACK_IMPORTED_MODULE_4__["ɵɵdefineNgModule"]({
  type: HttpClientJsonpModule
});
HttpClientJsonpModule.ɵinj = /* @__PURE__ */_angular_core__WEBPACK_IMPORTED_MODULE_4__["ɵɵdefineInjector"]({
  providers: [JsonpClientBackend, {
    provide: JsonpCallbackContext,
    useFactory: jsonpCallbackContext
  }, {
    provide: HTTP_INTERCEPTORS,
    useClass: JsonpInterceptor,
    multi: true
  }]
});

(function () {
  (typeof ngDevMode === "undefined" || ngDevMode) && _angular_core__WEBPACK_IMPORTED_MODULE_4__["ɵsetClassMetadata"](HttpClientJsonpModule, [{
    type: _angular_core__WEBPACK_IMPORTED_MODULE_4__.NgModule,
    args: [{
      providers: [JsonpClientBackend, {
        provide: JsonpCallbackContext,
        useFactory: jsonpCallbackContext
      }, {
        provide: HTTP_INTERCEPTORS,
        useClass: JsonpInterceptor,
        multi: true
      }]
    }]
  }], null, null);
})();
/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */

/**
 * A wrapper around the `XMLHttpRequest` constructor.
 *
 * @publicApi
 * @see `XhrFactory`
 * @deprecated
 * `XhrFactory` has moved, please import `XhrFactory` from `@angular/common` instead.
 */


const XhrFactory = _angular_common__WEBPACK_IMPORTED_MODULE_6__.XhrFactory;
/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */

/**
 * Generated bundle index. Do not edit.
 */



/***/ }),

/***/ 5590:
/*!**********************************************************!*\
  !*** ./node_modules/@angular/material/fesm2015/icon.mjs ***!
  \**********************************************************/
/***/ ((__unused_webpack___webpack_module__, __webpack_exports__, __webpack_require__) => {

__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "ICON_REGISTRY_PROVIDER": () => (/* binding */ ICON_REGISTRY_PROVIDER),
/* harmony export */   "ICON_REGISTRY_PROVIDER_FACTORY": () => (/* binding */ ICON_REGISTRY_PROVIDER_FACTORY),
/* harmony export */   "MAT_ICON_LOCATION": () => (/* binding */ MAT_ICON_LOCATION),
/* harmony export */   "MAT_ICON_LOCATION_FACTORY": () => (/* binding */ MAT_ICON_LOCATION_FACTORY),
/* harmony export */   "MatIcon": () => (/* binding */ MatIcon),
/* harmony export */   "MatIconModule": () => (/* binding */ MatIconModule),
/* harmony export */   "MatIconRegistry": () => (/* binding */ MatIconRegistry),
/* harmony export */   "getMatIconFailedToSanitizeLiteralError": () => (/* binding */ getMatIconFailedToSanitizeLiteralError),
/* harmony export */   "getMatIconFailedToSanitizeUrlError": () => (/* binding */ getMatIconFailedToSanitizeUrlError),
/* harmony export */   "getMatIconNameNotFoundError": () => (/* binding */ getMatIconNameNotFoundError),
/* harmony export */   "getMatIconNoHttpProviderError": () => (/* binding */ getMatIconNoHttpProviderError)
/* harmony export */ });
/* harmony import */ var _angular_core__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! @angular/core */ 3184);
/* harmony import */ var _angular_material_core__WEBPACK_IMPORTED_MODULE_12__ = __webpack_require__(/*! @angular/material/core */ 8133);
/* harmony import */ var _angular_cdk_coercion__WEBPACK_IMPORTED_MODULE_14__ = __webpack_require__(/*! @angular/cdk/coercion */ 6484);
/* harmony import */ var _angular_common__WEBPACK_IMPORTED_MODULE_11__ = __webpack_require__(/*! @angular/common */ 6362);
/* harmony import */ var rxjs__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! rxjs */ 745);
/* harmony import */ var rxjs__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! rxjs */ 5474);
/* harmony import */ var rxjs__WEBPACK_IMPORTED_MODULE_6__ = __webpack_require__(/*! rxjs */ 1640);
/* harmony import */ var rxjs__WEBPACK_IMPORTED_MODULE_13__ = __webpack_require__(/*! rxjs */ 6078);
/* harmony import */ var rxjs_operators__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! rxjs/operators */ 9337);
/* harmony import */ var rxjs_operators__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! rxjs/operators */ 635);
/* harmony import */ var rxjs_operators__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! rxjs/operators */ 3158);
/* harmony import */ var rxjs_operators__WEBPACK_IMPORTED_MODULE_7__ = __webpack_require__(/*! rxjs/operators */ 2313);
/* harmony import */ var rxjs_operators__WEBPACK_IMPORTED_MODULE_8__ = __webpack_require__(/*! rxjs/operators */ 1203);
/* harmony import */ var rxjs_operators__WEBPACK_IMPORTED_MODULE_15__ = __webpack_require__(/*! rxjs/operators */ 9295);
/* harmony import */ var _angular_common_http__WEBPACK_IMPORTED_MODULE_9__ = __webpack_require__(/*! @angular/common/http */ 8784);
/* harmony import */ var _angular_platform_browser__WEBPACK_IMPORTED_MODULE_10__ = __webpack_require__(/*! @angular/platform-browser */ 318);











/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */

/**
 * The Trusted Types policy, or null if Trusted Types are not
 * enabled/supported, or undefined if the policy has not been created yet.
 */

const _c0 = ["*"];
let policy;
/**
 * Returns the Trusted Types policy, or null if Trusted Types are not
 * enabled/supported. The first call to this function will create the policy.
 */

function getPolicy() {
  if (policy === undefined) {
    policy = null;

    if (typeof window !== 'undefined') {
      const ttWindow = window;

      if (ttWindow.trustedTypes !== undefined) {
        policy = ttWindow.trustedTypes.createPolicy('angular#components', {
          createHTML: s => s
        });
      }
    }
  }

  return policy;
}
/**
 * Unsafely promote a string to a TrustedHTML, falling back to strings when
 * Trusted Types are not available.
 * @security This is a security-sensitive function; any use of this function
 * must go through security review. In particular, it must be assured that the
 * provided string will never cause an XSS vulnerability if used in a context
 * that will be interpreted as HTML by a browser, e.g. when assigning to
 * element.innerHTML.
 */


function trustedHTMLFromString(html) {
  var _a;

  return ((_a = getPolicy()) === null || _a === void 0 ? void 0 : _a.createHTML(html)) || html;
}
/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */

/**
 * Returns an exception to be thrown in the case when attempting to
 * load an icon with a name that cannot be found.
 * @docs-private
 */


function getMatIconNameNotFoundError(iconName) {
  return Error(`Unable to find icon with the name "${iconName}"`);
}
/**
 * Returns an exception to be thrown when the consumer attempts to use
 * `<mat-icon>` without including @angular/common/http.
 * @docs-private
 */


function getMatIconNoHttpProviderError() {
  return Error('Could not find HttpClient provider for use with Angular Material icons. ' + 'Please include the HttpClientModule from @angular/common/http in your ' + 'app imports.');
}
/**
 * Returns an exception to be thrown when a URL couldn't be sanitized.
 * @param url URL that was attempted to be sanitized.
 * @docs-private
 */


function getMatIconFailedToSanitizeUrlError(url) {
  return Error(`The URL provided to MatIconRegistry was not trusted as a resource URL ` + `via Angular's DomSanitizer. Attempted URL was "${url}".`);
}
/**
 * Returns an exception to be thrown when a HTML string couldn't be sanitized.
 * @param literal HTML that was attempted to be sanitized.
 * @docs-private
 */


function getMatIconFailedToSanitizeLiteralError(literal) {
  return Error(`The literal provided to MatIconRegistry was not trusted as safe HTML by ` + `Angular's DomSanitizer. Attempted literal was "${literal}".`);
}
/**
 * Configuration for an icon, including the URL and possibly the cached SVG element.
 * @docs-private
 */


class SvgIconConfig {
  constructor(url, svgText, options) {
    this.url = url;
    this.svgText = svgText;
    this.options = options;
  }

}
/**
 * Service to register and display icons used by the `<mat-icon>` component.
 * - Registers icon URLs by namespace and name.
 * - Registers icon set URLs by namespace.
 * - Registers aliases for CSS classes, for use with icon fonts.
 * - Loads icons from URLs and extracts individual icons from icon sets.
 */


class MatIconRegistry {
  constructor(_httpClient, _sanitizer, document, _errorHandler) {
    this._httpClient = _httpClient;
    this._sanitizer = _sanitizer;
    this._errorHandler = _errorHandler;
    /**
     * URLs and cached SVG elements for individual icons. Keys are of the format "[namespace]:[icon]".
     */

    this._svgIconConfigs = new Map();
    /**
     * SvgIconConfig objects and cached SVG elements for icon sets, keyed by namespace.
     * Multiple icon sets can be registered under the same namespace.
     */

    this._iconSetConfigs = new Map();
    /** Cache for icons loaded by direct URLs. */

    this._cachedIconsByUrl = new Map();
    /** In-progress icon fetches. Used to coalesce multiple requests to the same URL. */

    this._inProgressUrlFetches = new Map();
    /** Map from font identifiers to their CSS class names. Used for icon fonts. */

    this._fontCssClassesByAlias = new Map();
    /** Registered icon resolver functions. */

    this._resolvers = [];
    /**
     * The CSS class to apply when an `<mat-icon>` component has no icon name, url, or font specified.
     * The default 'material-icons' value assumes that the material icon font has been loaded as
     * described at http://google.github.io/material-design-icons/#icon-font-for-the-web
     */

    this._defaultFontSetClass = 'material-icons';
    this._document = document;
  }
  /**
   * Registers an icon by URL in the default namespace.
   * @param iconName Name under which the icon should be registered.
   * @param url
   */


  addSvgIcon(iconName, url, options) {
    return this.addSvgIconInNamespace('', iconName, url, options);
  }
  /**
   * Registers an icon using an HTML string in the default namespace.
   * @param iconName Name under which the icon should be registered.
   * @param literal SVG source of the icon.
   */


  addSvgIconLiteral(iconName, literal, options) {
    return this.addSvgIconLiteralInNamespace('', iconName, literal, options);
  }
  /**
   * Registers an icon by URL in the specified namespace.
   * @param namespace Namespace in which the icon should be registered.
   * @param iconName Name under which the icon should be registered.
   * @param url
   */


  addSvgIconInNamespace(namespace, iconName, url, options) {
    return this._addSvgIconConfig(namespace, iconName, new SvgIconConfig(url, null, options));
  }
  /**
   * Registers an icon resolver function with the registry. The function will be invoked with the
   * name and namespace of an icon when the registry tries to resolve the URL from which to fetch
   * the icon. The resolver is expected to return a `SafeResourceUrl` that points to the icon,
   * an object with the icon URL and icon options, or `null` if the icon is not supported. Resolvers
   * will be invoked in the order in which they have been registered.
   * @param resolver Resolver function to be registered.
   */


  addSvgIconResolver(resolver) {
    this._resolvers.push(resolver);

    return this;
  }
  /**
   * Registers an icon using an HTML string in the specified namespace.
   * @param namespace Namespace in which the icon should be registered.
   * @param iconName Name under which the icon should be registered.
   * @param literal SVG source of the icon.
   */


  addSvgIconLiteralInNamespace(namespace, iconName, literal, options) {
    const cleanLiteral = this._sanitizer.sanitize(_angular_core__WEBPACK_IMPORTED_MODULE_0__.SecurityContext.HTML, literal); // TODO: add an ngDevMode check


    if (!cleanLiteral) {
      throw getMatIconFailedToSanitizeLiteralError(literal);
    } // Security: The literal is passed in as SafeHtml, and is thus trusted.


    const trustedLiteral = trustedHTMLFromString(cleanLiteral);
    return this._addSvgIconConfig(namespace, iconName, new SvgIconConfig('', trustedLiteral, options));
  }
  /**
   * Registers an icon set by URL in the default namespace.
   * @param url
   */


  addSvgIconSet(url, options) {
    return this.addSvgIconSetInNamespace('', url, options);
  }
  /**
   * Registers an icon set using an HTML string in the default namespace.
   * @param literal SVG source of the icon set.
   */


  addSvgIconSetLiteral(literal, options) {
    return this.addSvgIconSetLiteralInNamespace('', literal, options);
  }
  /**
   * Registers an icon set by URL in the specified namespace.
   * @param namespace Namespace in which to register the icon set.
   * @param url
   */


  addSvgIconSetInNamespace(namespace, url, options) {
    return this._addSvgIconSetConfig(namespace, new SvgIconConfig(url, null, options));
  }
  /**
   * Registers an icon set using an HTML string in the specified namespace.
   * @param namespace Namespace in which to register the icon set.
   * @param literal SVG source of the icon set.
   */


  addSvgIconSetLiteralInNamespace(namespace, literal, options) {
    const cleanLiteral = this._sanitizer.sanitize(_angular_core__WEBPACK_IMPORTED_MODULE_0__.SecurityContext.HTML, literal);

    if (!cleanLiteral) {
      throw getMatIconFailedToSanitizeLiteralError(literal);
    } // Security: The literal is passed in as SafeHtml, and is thus trusted.


    const trustedLiteral = trustedHTMLFromString(cleanLiteral);
    return this._addSvgIconSetConfig(namespace, new SvgIconConfig('', trustedLiteral, options));
  }
  /**
   * Defines an alias for a CSS class name to be used for icon fonts. Creating an matIcon
   * component with the alias as the fontSet input will cause the class name to be applied
   * to the `<mat-icon>` element.
   *
   * @param alias Alias for the font.
   * @param className Class name override to be used instead of the alias.
   */


  registerFontClassAlias(alias, className = alias) {
    this._fontCssClassesByAlias.set(alias, className);

    return this;
  }
  /**
   * Returns the CSS class name associated with the alias by a previous call to
   * registerFontClassAlias. If no CSS class has been associated, returns the alias unmodified.
   */


  classNameForFontAlias(alias) {
    return this._fontCssClassesByAlias.get(alias) || alias;
  }
  /**
   * Sets the CSS class name to be used for icon fonts when an `<mat-icon>` component does not
   * have a fontSet input value, and is not loading an icon by name or URL.
   *
   * @param className
   */


  setDefaultFontSetClass(className) {
    this._defaultFontSetClass = className;
    return this;
  }
  /**
   * Returns the CSS class name to be used for icon fonts when an `<mat-icon>` component does not
   * have a fontSet input value, and is not loading an icon by name or URL.
   */


  getDefaultFontSetClass() {
    return this._defaultFontSetClass;
  }
  /**
   * Returns an Observable that produces the icon (as an `<svg>` DOM element) from the given URL.
   * The response from the URL may be cached so this will not always cause an HTTP request, but
   * the produced element will always be a new copy of the originally fetched icon. (That is,
   * it will not contain any modifications made to elements previously returned).
   *
   * @param safeUrl URL from which to fetch the SVG icon.
   */


  getSvgIconFromUrl(safeUrl) {
    const url = this._sanitizer.sanitize(_angular_core__WEBPACK_IMPORTED_MODULE_0__.SecurityContext.RESOURCE_URL, safeUrl);

    if (!url) {
      throw getMatIconFailedToSanitizeUrlError(safeUrl);
    }

    const cachedIcon = this._cachedIconsByUrl.get(url);

    if (cachedIcon) {
      return (0,rxjs__WEBPACK_IMPORTED_MODULE_1__.of)(cloneSvg(cachedIcon));
    }

    return this._loadSvgIconFromConfig(new SvgIconConfig(safeUrl, null)).pipe((0,rxjs_operators__WEBPACK_IMPORTED_MODULE_2__.tap)(svg => this._cachedIconsByUrl.set(url, svg)), (0,rxjs_operators__WEBPACK_IMPORTED_MODULE_3__.map)(svg => cloneSvg(svg)));
  }
  /**
   * Returns an Observable that produces the icon (as an `<svg>` DOM element) with the given name
   * and namespace. The icon must have been previously registered with addIcon or addIconSet;
   * if not, the Observable will throw an error.
   *
   * @param name Name of the icon to be retrieved.
   * @param namespace Namespace in which to look for the icon.
   */


  getNamedSvgIcon(name, namespace = '') {
    const key = iconKey(namespace, name);

    let config = this._svgIconConfigs.get(key); // Return (copy of) cached icon if possible.


    if (config) {
      return this._getSvgFromConfig(config);
    } // Otherwise try to resolve the config from one of the resolver functions.


    config = this._getIconConfigFromResolvers(namespace, name);

    if (config) {
      this._svgIconConfigs.set(key, config);

      return this._getSvgFromConfig(config);
    } // See if we have any icon sets registered for the namespace.


    const iconSetConfigs = this._iconSetConfigs.get(namespace);

    if (iconSetConfigs) {
      return this._getSvgFromIconSetConfigs(name, iconSetConfigs);
    }

    return (0,rxjs__WEBPACK_IMPORTED_MODULE_4__.throwError)(getMatIconNameNotFoundError(key));
  }

  ngOnDestroy() {
    this._resolvers = [];

    this._svgIconConfigs.clear();

    this._iconSetConfigs.clear();

    this._cachedIconsByUrl.clear();
  }
  /**
   * Returns the cached icon for a SvgIconConfig if available, or fetches it from its URL if not.
   */


  _getSvgFromConfig(config) {
    if (config.svgText) {
      // We already have the SVG element for this icon, return a copy.
      return (0,rxjs__WEBPACK_IMPORTED_MODULE_1__.of)(cloneSvg(this._svgElementFromConfig(config)));
    } else {
      // Fetch the icon from the config's URL, cache it, and return a copy.
      return this._loadSvgIconFromConfig(config).pipe((0,rxjs_operators__WEBPACK_IMPORTED_MODULE_3__.map)(svg => cloneSvg(svg)));
    }
  }
  /**
   * Attempts to find an icon with the specified name in any of the SVG icon sets.
   * First searches the available cached icons for a nested element with a matching name, and
   * if found copies the element to a new `<svg>` element. If not found, fetches all icon sets
   * that have not been cached, and searches again after all fetches are completed.
   * The returned Observable produces the SVG element if possible, and throws
   * an error if no icon with the specified name can be found.
   */


  _getSvgFromIconSetConfigs(name, iconSetConfigs) {
    // For all the icon set SVG elements we've fetched, see if any contain an icon with the
    // requested name.
    const namedIcon = this._extractIconWithNameFromAnySet(name, iconSetConfigs);

    if (namedIcon) {
      // We could cache namedIcon in _svgIconConfigs, but since we have to make a copy every
      // time anyway, there's probably not much advantage compared to just always extracting
      // it from the icon set.
      return (0,rxjs__WEBPACK_IMPORTED_MODULE_1__.of)(namedIcon);
    } // Not found in any cached icon sets. If there are icon sets with URLs that we haven't
    // fetched, fetch them now and look for iconName in the results.


    const iconSetFetchRequests = iconSetConfigs.filter(iconSetConfig => !iconSetConfig.svgText).map(iconSetConfig => {
      return this._loadSvgIconSetFromConfig(iconSetConfig).pipe((0,rxjs_operators__WEBPACK_IMPORTED_MODULE_5__.catchError)(err => {
        const url = this._sanitizer.sanitize(_angular_core__WEBPACK_IMPORTED_MODULE_0__.SecurityContext.RESOURCE_URL, iconSetConfig.url); // Swallow errors fetching individual URLs so the
        // combined Observable won't necessarily fail.


        const errorMessage = `Loading icon set URL: ${url} failed: ${err.message}`;

        this._errorHandler.handleError(new Error(errorMessage));

        return (0,rxjs__WEBPACK_IMPORTED_MODULE_1__.of)(null);
      }));
    }); // Fetch all the icon set URLs. When the requests complete, every IconSet should have a
    // cached SVG element (unless the request failed), and we can check again for the icon.

    return (0,rxjs__WEBPACK_IMPORTED_MODULE_6__.forkJoin)(iconSetFetchRequests).pipe((0,rxjs_operators__WEBPACK_IMPORTED_MODULE_3__.map)(() => {
      const foundIcon = this._extractIconWithNameFromAnySet(name, iconSetConfigs); // TODO: add an ngDevMode check


      if (!foundIcon) {
        throw getMatIconNameNotFoundError(name);
      }

      return foundIcon;
    }));
  }
  /**
   * Searches the cached SVG elements for the given icon sets for a nested icon element whose "id"
   * tag matches the specified name. If found, copies the nested element to a new SVG element and
   * returns it. Returns null if no matching element is found.
   */


  _extractIconWithNameFromAnySet(iconName, iconSetConfigs) {
    // Iterate backwards, so icon sets added later have precedence.
    for (let i = iconSetConfigs.length - 1; i >= 0; i--) {
      const config = iconSetConfigs[i]; // Parsing the icon set's text into an SVG element can be expensive. We can avoid some of
      // the parsing by doing a quick check using `indexOf` to see if there's any chance for the
      // icon to be in the set. This won't be 100% accurate, but it should help us avoid at least
      // some of the parsing.

      if (config.svgText && config.svgText.toString().indexOf(iconName) > -1) {
        const svg = this._svgElementFromConfig(config);

        const foundIcon = this._extractSvgIconFromSet(svg, iconName, config.options);

        if (foundIcon) {
          return foundIcon;
        }
      }
    }

    return null;
  }
  /**
   * Loads the content of the icon URL specified in the SvgIconConfig and creates an SVG element
   * from it.
   */


  _loadSvgIconFromConfig(config) {
    return this._fetchIcon(config).pipe((0,rxjs_operators__WEBPACK_IMPORTED_MODULE_2__.tap)(svgText => config.svgText = svgText), (0,rxjs_operators__WEBPACK_IMPORTED_MODULE_3__.map)(() => this._svgElementFromConfig(config)));
  }
  /**
   * Loads the content of the icon set URL specified in the
   * SvgIconConfig and attaches it to the config.
   */


  _loadSvgIconSetFromConfig(config) {
    if (config.svgText) {
      return (0,rxjs__WEBPACK_IMPORTED_MODULE_1__.of)(null);
    }

    return this._fetchIcon(config).pipe((0,rxjs_operators__WEBPACK_IMPORTED_MODULE_2__.tap)(svgText => config.svgText = svgText));
  }
  /**
   * Searches the cached element of the given SvgIconConfig for a nested icon element whose "id"
   * tag matches the specified name. If found, copies the nested element to a new SVG element and
   * returns it. Returns null if no matching element is found.
   */


  _extractSvgIconFromSet(iconSet, iconName, options) {
    // Use the `id="iconName"` syntax in order to escape special
    // characters in the ID (versus using the #iconName syntax).
    const iconSource = iconSet.querySelector(`[id="${iconName}"]`);

    if (!iconSource) {
      return null;
    } // Clone the element and remove the ID to prevent multiple elements from being added
    // to the page with the same ID.


    const iconElement = iconSource.cloneNode(true);
    iconElement.removeAttribute('id'); // If the icon node is itself an <svg> node, clone and return it directly. If not, set it as
    // the content of a new <svg> node.

    if (iconElement.nodeName.toLowerCase() === 'svg') {
      return this._setSvgAttributes(iconElement, options);
    } // If the node is a <symbol>, it won't be rendered so we have to convert it into <svg>. Note
    // that the same could be achieved by referring to it via <use href="#id">, however the <use>
    // tag is problematic on Firefox, because it needs to include the current page path.


    if (iconElement.nodeName.toLowerCase() === 'symbol') {
      return this._setSvgAttributes(this._toSvgElement(iconElement), options);
    } // createElement('SVG') doesn't work as expected; the DOM ends up with
    // the correct nodes, but the SVG content doesn't render. Instead we
    // have to create an empty SVG node using innerHTML and append its content.
    // Elements created using DOMParser.parseFromString have the same problem.
    // http://stackoverflow.com/questions/23003278/svg-innerhtml-in-firefox-can-not-display


    const svg = this._svgElementFromString(trustedHTMLFromString('<svg></svg>')); // Clone the node so we don't remove it from the parent icon set element.


    svg.appendChild(iconElement);
    return this._setSvgAttributes(svg, options);
  }
  /**
   * Creates a DOM element from the given SVG string.
   */


  _svgElementFromString(str) {
    const div = this._document.createElement('DIV');

    div.innerHTML = str;
    const svg = div.querySelector('svg'); // TODO: add an ngDevMode check

    if (!svg) {
      throw Error('<svg> tag not found');
    }

    return svg;
  }
  /**
   * Converts an element into an SVG node by cloning all of its children.
   */


  _toSvgElement(element) {
    const svg = this._svgElementFromString(trustedHTMLFromString('<svg></svg>'));

    const attributes = element.attributes; // Copy over all the attributes from the `symbol` to the new SVG, except the id.

    for (let i = 0; i < attributes.length; i++) {
      const {
        name,
        value
      } = attributes[i];

      if (name !== 'id') {
        svg.setAttribute(name, value);
      }
    }

    for (let i = 0; i < element.childNodes.length; i++) {
      if (element.childNodes[i].nodeType === this._document.ELEMENT_NODE) {
        svg.appendChild(element.childNodes[i].cloneNode(true));
      }
    }

    return svg;
  }
  /**
   * Sets the default attributes for an SVG element to be used as an icon.
   */


  _setSvgAttributes(svg, options) {
    svg.setAttribute('fit', '');
    svg.setAttribute('height', '100%');
    svg.setAttribute('width', '100%');
    svg.setAttribute('preserveAspectRatio', 'xMidYMid meet');
    svg.setAttribute('focusable', 'false'); // Disable IE11 default behavior to make SVGs focusable.

    if (options && options.viewBox) {
      svg.setAttribute('viewBox', options.viewBox);
    }

    return svg;
  }
  /**
   * Returns an Observable which produces the string contents of the given icon. Results may be
   * cached, so future calls with the same URL may not cause another HTTP request.
   */


  _fetchIcon(iconConfig) {
    var _a;

    const {
      url: safeUrl,
      options
    } = iconConfig;
    const withCredentials = (_a = options === null || options === void 0 ? void 0 : options.withCredentials) !== null && _a !== void 0 ? _a : false;

    if (!this._httpClient) {
      throw getMatIconNoHttpProviderError();
    } // TODO: add an ngDevMode check


    if (safeUrl == null) {
      throw Error(`Cannot fetch icon from URL "${safeUrl}".`);
    }

    const url = this._sanitizer.sanitize(_angular_core__WEBPACK_IMPORTED_MODULE_0__.SecurityContext.RESOURCE_URL, safeUrl); // TODO: add an ngDevMode check


    if (!url) {
      throw getMatIconFailedToSanitizeUrlError(safeUrl);
    } // Store in-progress fetches to avoid sending a duplicate request for a URL when there is
    // already a request in progress for that URL. It's necessary to call share() on the
    // Observable returned by http.get() so that multiple subscribers don't cause multiple XHRs.


    const inProgressFetch = this._inProgressUrlFetches.get(url);

    if (inProgressFetch) {
      return inProgressFetch;
    }

    const req = this._httpClient.get(url, {
      responseType: 'text',
      withCredentials
    }).pipe((0,rxjs_operators__WEBPACK_IMPORTED_MODULE_3__.map)(svg => {
      // Security: This SVG is fetched from a SafeResourceUrl, and is thus
      // trusted HTML.
      return trustedHTMLFromString(svg);
    }), (0,rxjs_operators__WEBPACK_IMPORTED_MODULE_7__.finalize)(() => this._inProgressUrlFetches.delete(url)), (0,rxjs_operators__WEBPACK_IMPORTED_MODULE_8__.share)());

    this._inProgressUrlFetches.set(url, req);

    return req;
  }
  /**
   * Registers an icon config by name in the specified namespace.
   * @param namespace Namespace in which to register the icon config.
   * @param iconName Name under which to register the config.
   * @param config Config to be registered.
   */


  _addSvgIconConfig(namespace, iconName, config) {
    this._svgIconConfigs.set(iconKey(namespace, iconName), config);

    return this;
  }
  /**
   * Registers an icon set config in the specified namespace.
   * @param namespace Namespace in which to register the icon config.
   * @param config Config to be registered.
   */


  _addSvgIconSetConfig(namespace, config) {
    const configNamespace = this._iconSetConfigs.get(namespace);

    if (configNamespace) {
      configNamespace.push(config);
    } else {
      this._iconSetConfigs.set(namespace, [config]);
    }

    return this;
  }
  /** Parses a config's text into an SVG element. */


  _svgElementFromConfig(config) {
    if (!config.svgElement) {
      const svg = this._svgElementFromString(config.svgText);

      this._setSvgAttributes(svg, config.options);

      config.svgElement = svg;
    }

    return config.svgElement;
  }
  /** Tries to create an icon config through the registered resolver functions. */


  _getIconConfigFromResolvers(namespace, name) {
    for (let i = 0; i < this._resolvers.length; i++) {
      const result = this._resolvers[i](name, namespace);

      if (result) {
        return isSafeUrlWithOptions(result) ? new SvgIconConfig(result.url, null, result.options) : new SvgIconConfig(result, null);
      }
    }

    return undefined;
  }

}

MatIconRegistry.ɵfac = function MatIconRegistry_Factory(t) {
  return new (t || MatIconRegistry)(_angular_core__WEBPACK_IMPORTED_MODULE_0__["ɵɵinject"](_angular_common_http__WEBPACK_IMPORTED_MODULE_9__.HttpClient, 8), _angular_core__WEBPACK_IMPORTED_MODULE_0__["ɵɵinject"](_angular_platform_browser__WEBPACK_IMPORTED_MODULE_10__.DomSanitizer), _angular_core__WEBPACK_IMPORTED_MODULE_0__["ɵɵinject"](_angular_common__WEBPACK_IMPORTED_MODULE_11__.DOCUMENT, 8), _angular_core__WEBPACK_IMPORTED_MODULE_0__["ɵɵinject"](_angular_core__WEBPACK_IMPORTED_MODULE_0__.ErrorHandler));
};

MatIconRegistry.ɵprov = /* @__PURE__ */_angular_core__WEBPACK_IMPORTED_MODULE_0__["ɵɵdefineInjectable"]({
  token: MatIconRegistry,
  factory: MatIconRegistry.ɵfac,
  providedIn: 'root'
});

(function () {
  (typeof ngDevMode === "undefined" || ngDevMode) && _angular_core__WEBPACK_IMPORTED_MODULE_0__["ɵsetClassMetadata"](MatIconRegistry, [{
    type: _angular_core__WEBPACK_IMPORTED_MODULE_0__.Injectable,
    args: [{
      providedIn: 'root'
    }]
  }], function () {
    return [{
      type: _angular_common_http__WEBPACK_IMPORTED_MODULE_9__.HttpClient,
      decorators: [{
        type: _angular_core__WEBPACK_IMPORTED_MODULE_0__.Optional
      }]
    }, {
      type: _angular_platform_browser__WEBPACK_IMPORTED_MODULE_10__.DomSanitizer
    }, {
      type: undefined,
      decorators: [{
        type: _angular_core__WEBPACK_IMPORTED_MODULE_0__.Optional
      }, {
        type: _angular_core__WEBPACK_IMPORTED_MODULE_0__.Inject,
        args: [_angular_common__WEBPACK_IMPORTED_MODULE_11__.DOCUMENT]
      }]
    }, {
      type: _angular_core__WEBPACK_IMPORTED_MODULE_0__.ErrorHandler
    }];
  }, null);
})();
/** @docs-private */


function ICON_REGISTRY_PROVIDER_FACTORY(parentRegistry, httpClient, sanitizer, errorHandler, document) {
  return parentRegistry || new MatIconRegistry(httpClient, sanitizer, document, errorHandler);
}
/** @docs-private */


const ICON_REGISTRY_PROVIDER = {
  // If there is already an MatIconRegistry available, use that. Otherwise, provide a new one.
  provide: MatIconRegistry,
  deps: [[new _angular_core__WEBPACK_IMPORTED_MODULE_0__.Optional(), new _angular_core__WEBPACK_IMPORTED_MODULE_0__.SkipSelf(), MatIconRegistry], [new _angular_core__WEBPACK_IMPORTED_MODULE_0__.Optional(), _angular_common_http__WEBPACK_IMPORTED_MODULE_9__.HttpClient], _angular_platform_browser__WEBPACK_IMPORTED_MODULE_10__.DomSanitizer, _angular_core__WEBPACK_IMPORTED_MODULE_0__.ErrorHandler, [new _angular_core__WEBPACK_IMPORTED_MODULE_0__.Optional(), _angular_common__WEBPACK_IMPORTED_MODULE_11__.DOCUMENT]],
  useFactory: ICON_REGISTRY_PROVIDER_FACTORY
};
/** Clones an SVGElement while preserving type information. */

function cloneSvg(svg) {
  return svg.cloneNode(true);
}
/** Returns the cache key to use for an icon namespace and name. */


function iconKey(namespace, name) {
  return namespace + ':' + name;
}

function isSafeUrlWithOptions(value) {
  return !!(value.url && value.options);
}
/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
// Boilerplate for applying mixins to MatIcon.

/** @docs-private */


const _MatIconBase = (0,_angular_material_core__WEBPACK_IMPORTED_MODULE_12__.mixinColor)(class {
  constructor(_elementRef) {
    this._elementRef = _elementRef;
  }

});
/**
 * Injection token used to provide the current location to `MatIcon`.
 * Used to handle server-side rendering and to stub out during unit tests.
 * @docs-private
 */


const MAT_ICON_LOCATION = new _angular_core__WEBPACK_IMPORTED_MODULE_0__.InjectionToken('mat-icon-location', {
  providedIn: 'root',
  factory: MAT_ICON_LOCATION_FACTORY
});
/** @docs-private */

function MAT_ICON_LOCATION_FACTORY() {
  const _document = (0,_angular_core__WEBPACK_IMPORTED_MODULE_0__.inject)(_angular_common__WEBPACK_IMPORTED_MODULE_11__.DOCUMENT);

  const _location = _document ? _document.location : null;

  return {
    // Note that this needs to be a function, rather than a property, because Angular
    // will only resolve it once, but we want the current path on each call.
    getPathname: () => _location ? _location.pathname + _location.search : ''
  };
}
/** SVG attributes that accept a FuncIRI (e.g. `url(<something>)`). */


const funcIriAttributes = ['clip-path', 'color-profile', 'src', 'cursor', 'fill', 'filter', 'marker', 'marker-start', 'marker-mid', 'marker-end', 'mask', 'stroke'];
/** Selector that can be used to find all elements that are using a `FuncIRI`. */

const funcIriAttributeSelector = funcIriAttributes.map(attr => `[${attr}]`).join(', ');
/** Regex that can be used to extract the id out of a FuncIRI. */

const funcIriPattern = /^url\(['"]?#(.*?)['"]?\)$/;
/**
 * Component to display an icon. It can be used in the following ways:
 *
 * - Specify the svgIcon input to load an SVG icon from a URL previously registered with the
 *   addSvgIcon, addSvgIconInNamespace, addSvgIconSet, or addSvgIconSetInNamespace methods of
 *   MatIconRegistry. If the svgIcon value contains a colon it is assumed to be in the format
 *   "[namespace]:[name]", if not the value will be the name of an icon in the default namespace.
 *   Examples:
 *     `<mat-icon svgIcon="left-arrow"></mat-icon>
 *     <mat-icon svgIcon="animals:cat"></mat-icon>`
 *
 * - Use a font ligature as an icon by putting the ligature text in the content of the `<mat-icon>`
 *   component. By default the Material icons font is used as described at
 *   http://google.github.io/material-design-icons/#icon-font-for-the-web. You can specify an
 *   alternate font by setting the fontSet input to either the CSS class to apply to use the
 *   desired font, or to an alias previously registered with MatIconRegistry.registerFontClassAlias.
 *   Examples:
 *     `<mat-icon>home</mat-icon>
 *     <mat-icon fontSet="myfont">sun</mat-icon>`
 *
 * - Specify a font glyph to be included via CSS rules by setting the fontSet input to specify the
 *   font, and the fontIcon input to specify the icon. Typically the fontIcon will specify a
 *   CSS class which causes the glyph to be displayed via a :before selector, as in
 *   https://fortawesome.github.io/Font-Awesome/examples/
 *   Example:
 *     `<mat-icon fontSet="fa" fontIcon="alarm"></mat-icon>`
 */

class MatIcon extends _MatIconBase {
  constructor(elementRef, _iconRegistry, ariaHidden, _location, _errorHandler) {
    super(elementRef);
    this._iconRegistry = _iconRegistry;
    this._location = _location;
    this._errorHandler = _errorHandler;
    this._inline = false;
    /** Subscription to the current in-progress SVG icon request. */

    this._currentIconFetch = rxjs__WEBPACK_IMPORTED_MODULE_13__.Subscription.EMPTY; // If the user has not explicitly set aria-hidden, mark the icon as hidden, as this is
    // the right thing to do for the majority of icon use-cases.

    if (!ariaHidden) {
      elementRef.nativeElement.setAttribute('aria-hidden', 'true');
    }
  }
  /**
   * Whether the icon should be inlined, automatically sizing the icon to match the font size of
   * the element the icon is contained in.
   */


  get inline() {
    return this._inline;
  }

  set inline(inline) {
    this._inline = (0,_angular_cdk_coercion__WEBPACK_IMPORTED_MODULE_14__.coerceBooleanProperty)(inline);
  }
  /** Name of the icon in the SVG icon set. */


  get svgIcon() {
    return this._svgIcon;
  }

  set svgIcon(value) {
    if (value !== this._svgIcon) {
      if (value) {
        this._updateSvgIcon(value);
      } else if (this._svgIcon) {
        this._clearSvgElement();
      }

      this._svgIcon = value;
    }
  }
  /** Font set that the icon is a part of. */


  get fontSet() {
    return this._fontSet;
  }

  set fontSet(value) {
    const newValue = this._cleanupFontValue(value);

    if (newValue !== this._fontSet) {
      this._fontSet = newValue;

      this._updateFontIconClasses();
    }
  }
  /** Name of an icon within a font set. */


  get fontIcon() {
    return this._fontIcon;
  }

  set fontIcon(value) {
    const newValue = this._cleanupFontValue(value);

    if (newValue !== this._fontIcon) {
      this._fontIcon = newValue;

      this._updateFontIconClasses();
    }
  }
  /**
   * Splits an svgIcon binding value into its icon set and icon name components.
   * Returns a 2-element array of [(icon set), (icon name)].
   * The separator for the two fields is ':'. If there is no separator, an empty
   * string is returned for the icon set and the entire value is returned for
   * the icon name. If the argument is falsy, returns an array of two empty strings.
   * Throws an error if the name contains two or more ':' separators.
   * Examples:
   *   `'social:cake' -> ['social', 'cake']
   *   'penguin' -> ['', 'penguin']
   *   null -> ['', '']
   *   'a:b:c' -> (throws Error)`
   */


  _splitIconName(iconName) {
    if (!iconName) {
      return ['', ''];
    }

    const parts = iconName.split(':');

    switch (parts.length) {
      case 1:
        return ['', parts[0]];
      // Use default namespace.

      case 2:
        return parts;

      default:
        throw Error(`Invalid icon name: "${iconName}"`);
      // TODO: add an ngDevMode check
    }
  }

  ngOnInit() {
    // Update font classes because ngOnChanges won't be called if none of the inputs are present,
    // e.g. <mat-icon>arrow</mat-icon> In this case we need to add a CSS class for the default font.
    this._updateFontIconClasses();
  }

  ngAfterViewChecked() {
    const cachedElements = this._elementsWithExternalReferences;

    if (cachedElements && cachedElements.size) {
      const newPath = this._location.getPathname(); // We need to check whether the URL has changed on each change detection since
      // the browser doesn't have an API that will let us react on link clicks and
      // we can't depend on the Angular router. The references need to be updated,
      // because while most browsers don't care whether the URL is correct after
      // the first render, Safari will break if the user navigates to a different
      // page and the SVG isn't re-rendered.


      if (newPath !== this._previousPath) {
        this._previousPath = newPath;

        this._prependPathToReferences(newPath);
      }
    }
  }

  ngOnDestroy() {
    this._currentIconFetch.unsubscribe();

    if (this._elementsWithExternalReferences) {
      this._elementsWithExternalReferences.clear();
    }
  }

  _usingFontIcon() {
    return !this.svgIcon;
  }

  _setSvgElement(svg) {
    this._clearSvgElement(); // Workaround for IE11 and Edge ignoring `style` tags inside dynamically-created SVGs.
    // See: https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/10898469/
    // Do this before inserting the element into the DOM, in order to avoid a style recalculation.


    const styleTags = svg.querySelectorAll('style');

    for (let i = 0; i < styleTags.length; i++) {
      styleTags[i].textContent += ' ';
    } // Note: we do this fix here, rather than the icon registry, because the
    // references have to point to the URL at the time that the icon was created.


    const path = this._location.getPathname();

    this._previousPath = path;

    this._cacheChildrenWithExternalReferences(svg);

    this._prependPathToReferences(path);

    this._elementRef.nativeElement.appendChild(svg);
  }

  _clearSvgElement() {
    const layoutElement = this._elementRef.nativeElement;
    let childCount = layoutElement.childNodes.length;

    if (this._elementsWithExternalReferences) {
      this._elementsWithExternalReferences.clear();
    } // Remove existing non-element child nodes and SVGs, and add the new SVG element. Note that
    // we can't use innerHTML, because IE will throw if the element has a data binding.


    while (childCount--) {
      const child = layoutElement.childNodes[childCount]; // 1 corresponds to Node.ELEMENT_NODE. We remove all non-element nodes in order to get rid
      // of any loose text nodes, as well as any SVG elements in order to remove any old icons.

      if (child.nodeType !== 1 || child.nodeName.toLowerCase() === 'svg') {
        child.remove();
      }
    }
  }

  _updateFontIconClasses() {
    if (!this._usingFontIcon()) {
      return;
    }

    const elem = this._elementRef.nativeElement;
    const fontSetClass = this.fontSet ? this._iconRegistry.classNameForFontAlias(this.fontSet) : this._iconRegistry.getDefaultFontSetClass();

    if (fontSetClass != this._previousFontSetClass) {
      if (this._previousFontSetClass) {
        elem.classList.remove(this._previousFontSetClass);
      }

      if (fontSetClass) {
        elem.classList.add(fontSetClass);
      }

      this._previousFontSetClass = fontSetClass;
    }

    if (this.fontIcon != this._previousFontIconClass) {
      if (this._previousFontIconClass) {
        elem.classList.remove(this._previousFontIconClass);
      }

      if (this.fontIcon) {
        elem.classList.add(this.fontIcon);
      }

      this._previousFontIconClass = this.fontIcon;
    }
  }
  /**
   * Cleans up a value to be used as a fontIcon or fontSet.
   * Since the value ends up being assigned as a CSS class, we
   * have to trim the value and omit space-separated values.
   */


  _cleanupFontValue(value) {
    return typeof value === 'string' ? value.trim().split(' ')[0] : value;
  }
  /**
   * Prepends the current path to all elements that have an attribute pointing to a `FuncIRI`
   * reference. This is required because WebKit browsers require references to be prefixed with
   * the current path, if the page has a `base` tag.
   */


  _prependPathToReferences(path) {
    const elements = this._elementsWithExternalReferences;

    if (elements) {
      elements.forEach((attrs, element) => {
        attrs.forEach(attr => {
          element.setAttribute(attr.name, `url('${path}#${attr.value}')`);
        });
      });
    }
  }
  /**
   * Caches the children of an SVG element that have `url()`
   * references that we need to prefix with the current path.
   */


  _cacheChildrenWithExternalReferences(element) {
    const elementsWithFuncIri = element.querySelectorAll(funcIriAttributeSelector);
    const elements = this._elementsWithExternalReferences = this._elementsWithExternalReferences || new Map();

    for (let i = 0; i < elementsWithFuncIri.length; i++) {
      funcIriAttributes.forEach(attr => {
        const elementWithReference = elementsWithFuncIri[i];
        const value = elementWithReference.getAttribute(attr);
        const match = value ? value.match(funcIriPattern) : null;

        if (match) {
          let attributes = elements.get(elementWithReference);

          if (!attributes) {
            attributes = [];
            elements.set(elementWithReference, attributes);
          }

          attributes.push({
            name: attr,
            value: match[1]
          });
        }
      });
    }
  }
  /** Sets a new SVG icon with a particular name. */


  _updateSvgIcon(rawName) {
    this._svgNamespace = null;
    this._svgName = null;

    this._currentIconFetch.unsubscribe();

    if (rawName) {
      const [namespace, iconName] = this._splitIconName(rawName);

      if (namespace) {
        this._svgNamespace = namespace;
      }

      if (iconName) {
        this._svgName = iconName;
      }

      this._currentIconFetch = this._iconRegistry.getNamedSvgIcon(iconName, namespace).pipe((0,rxjs_operators__WEBPACK_IMPORTED_MODULE_15__.take)(1)).subscribe(svg => this._setSvgElement(svg), err => {
        const errorMessage = `Error retrieving icon ${namespace}:${iconName}! ${err.message}`;

        this._errorHandler.handleError(new Error(errorMessage));
      });
    }
  }

}

MatIcon.ɵfac = function MatIcon_Factory(t) {
  return new (t || MatIcon)(_angular_core__WEBPACK_IMPORTED_MODULE_0__["ɵɵdirectiveInject"](_angular_core__WEBPACK_IMPORTED_MODULE_0__.ElementRef), _angular_core__WEBPACK_IMPORTED_MODULE_0__["ɵɵdirectiveInject"](MatIconRegistry), _angular_core__WEBPACK_IMPORTED_MODULE_0__["ɵɵinjectAttribute"]('aria-hidden'), _angular_core__WEBPACK_IMPORTED_MODULE_0__["ɵɵdirectiveInject"](MAT_ICON_LOCATION), _angular_core__WEBPACK_IMPORTED_MODULE_0__["ɵɵdirectiveInject"](_angular_core__WEBPACK_IMPORTED_MODULE_0__.ErrorHandler));
};

MatIcon.ɵcmp = /* @__PURE__ */_angular_core__WEBPACK_IMPORTED_MODULE_0__["ɵɵdefineComponent"]({
  type: MatIcon,
  selectors: [["mat-icon"]],
  hostAttrs: ["role", "img", 1, "mat-icon", "notranslate"],
  hostVars: 7,
  hostBindings: function MatIcon_HostBindings(rf, ctx) {
    if (rf & 2) {
      _angular_core__WEBPACK_IMPORTED_MODULE_0__["ɵɵattribute"]("data-mat-icon-type", ctx._usingFontIcon() ? "font" : "svg")("data-mat-icon-name", ctx._svgName || ctx.fontIcon)("data-mat-icon-namespace", ctx._svgNamespace || ctx.fontSet);
      _angular_core__WEBPACK_IMPORTED_MODULE_0__["ɵɵclassProp"]("mat-icon-inline", ctx.inline)("mat-icon-no-color", ctx.color !== "primary" && ctx.color !== "accent" && ctx.color !== "warn");
    }
  },
  inputs: {
    color: "color",
    inline: "inline",
    svgIcon: "svgIcon",
    fontSet: "fontSet",
    fontIcon: "fontIcon"
  },
  exportAs: ["matIcon"],
  features: [_angular_core__WEBPACK_IMPORTED_MODULE_0__["ɵɵInheritDefinitionFeature"]],
  ngContentSelectors: _c0,
  decls: 1,
  vars: 0,
  template: function MatIcon_Template(rf, ctx) {
    if (rf & 1) {
      _angular_core__WEBPACK_IMPORTED_MODULE_0__["ɵɵprojectionDef"]();
      _angular_core__WEBPACK_IMPORTED_MODULE_0__["ɵɵprojection"](0);
    }
  },
  styles: [".mat-icon{-webkit-user-select:none;-moz-user-select:none;user-select:none;background-repeat:no-repeat;display:inline-block;fill:currentColor;height:24px;width:24px}.mat-icon.mat-icon-inline{font-size:inherit;height:inherit;line-height:inherit;width:inherit}[dir=rtl] .mat-icon-rtl-mirror{transform:scale(-1, 1)}.mat-form-field:not(.mat-form-field-appearance-legacy) .mat-form-field-prefix .mat-icon,.mat-form-field:not(.mat-form-field-appearance-legacy) .mat-form-field-suffix .mat-icon{display:block}.mat-form-field:not(.mat-form-field-appearance-legacy) .mat-form-field-prefix .mat-icon-button .mat-icon,.mat-form-field:not(.mat-form-field-appearance-legacy) .mat-form-field-suffix .mat-icon-button .mat-icon{margin:auto}\n"],
  encapsulation: 2,
  changeDetection: 0
});

(function () {
  (typeof ngDevMode === "undefined" || ngDevMode) && _angular_core__WEBPACK_IMPORTED_MODULE_0__["ɵsetClassMetadata"](MatIcon, [{
    type: _angular_core__WEBPACK_IMPORTED_MODULE_0__.Component,
    args: [{
      template: '<ng-content></ng-content>',
      selector: 'mat-icon',
      exportAs: 'matIcon',
      inputs: ['color'],
      host: {
        'role': 'img',
        'class': 'mat-icon notranslate',
        '[attr.data-mat-icon-type]': '_usingFontIcon() ? "font" : "svg"',
        '[attr.data-mat-icon-name]': '_svgName || fontIcon',
        '[attr.data-mat-icon-namespace]': '_svgNamespace || fontSet',
        '[class.mat-icon-inline]': 'inline',
        '[class.mat-icon-no-color]': 'color !== "primary" && color !== "accent" && color !== "warn"'
      },
      encapsulation: _angular_core__WEBPACK_IMPORTED_MODULE_0__.ViewEncapsulation.None,
      changeDetection: _angular_core__WEBPACK_IMPORTED_MODULE_0__.ChangeDetectionStrategy.OnPush,
      styles: [".mat-icon{-webkit-user-select:none;-moz-user-select:none;user-select:none;background-repeat:no-repeat;display:inline-block;fill:currentColor;height:24px;width:24px}.mat-icon.mat-icon-inline{font-size:inherit;height:inherit;line-height:inherit;width:inherit}[dir=rtl] .mat-icon-rtl-mirror{transform:scale(-1, 1)}.mat-form-field:not(.mat-form-field-appearance-legacy) .mat-form-field-prefix .mat-icon,.mat-form-field:not(.mat-form-field-appearance-legacy) .mat-form-field-suffix .mat-icon{display:block}.mat-form-field:not(.mat-form-field-appearance-legacy) .mat-form-field-prefix .mat-icon-button .mat-icon,.mat-form-field:not(.mat-form-field-appearance-legacy) .mat-form-field-suffix .mat-icon-button .mat-icon{margin:auto}\n"]
    }]
  }], function () {
    return [{
      type: _angular_core__WEBPACK_IMPORTED_MODULE_0__.ElementRef
    }, {
      type: MatIconRegistry
    }, {
      type: undefined,
      decorators: [{
        type: _angular_core__WEBPACK_IMPORTED_MODULE_0__.Attribute,
        args: ['aria-hidden']
      }]
    }, {
      type: undefined,
      decorators: [{
        type: _angular_core__WEBPACK_IMPORTED_MODULE_0__.Inject,
        args: [MAT_ICON_LOCATION]
      }]
    }, {
      type: _angular_core__WEBPACK_IMPORTED_MODULE_0__.ErrorHandler
    }];
  }, {
    inline: [{
      type: _angular_core__WEBPACK_IMPORTED_MODULE_0__.Input
    }],
    svgIcon: [{
      type: _angular_core__WEBPACK_IMPORTED_MODULE_0__.Input
    }],
    fontSet: [{
      type: _angular_core__WEBPACK_IMPORTED_MODULE_0__.Input
    }],
    fontIcon: [{
      type: _angular_core__WEBPACK_IMPORTED_MODULE_0__.Input
    }]
  });
})();
/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */


class MatIconModule {}

MatIconModule.ɵfac = function MatIconModule_Factory(t) {
  return new (t || MatIconModule)();
};

MatIconModule.ɵmod = /* @__PURE__ */_angular_core__WEBPACK_IMPORTED_MODULE_0__["ɵɵdefineNgModule"]({
  type: MatIconModule
});
MatIconModule.ɵinj = /* @__PURE__ */_angular_core__WEBPACK_IMPORTED_MODULE_0__["ɵɵdefineInjector"]({
  imports: [[_angular_material_core__WEBPACK_IMPORTED_MODULE_12__.MatCommonModule], _angular_material_core__WEBPACK_IMPORTED_MODULE_12__.MatCommonModule]
});

(function () {
  (typeof ngDevMode === "undefined" || ngDevMode) && _angular_core__WEBPACK_IMPORTED_MODULE_0__["ɵsetClassMetadata"](MatIconModule, [{
    type: _angular_core__WEBPACK_IMPORTED_MODULE_0__.NgModule,
    args: [{
      imports: [_angular_material_core__WEBPACK_IMPORTED_MODULE_12__.MatCommonModule],
      exports: [MatIcon, _angular_material_core__WEBPACK_IMPORTED_MODULE_12__.MatCommonModule],
      declarations: [MatIcon]
    }]
  }], null, null);
})();
/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */

/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */

/**
 * Generated bundle index. Do not edit.
 */




/***/ })

}]);
//# sourceMappingURL=default-node_modules_angular_material_fesm2015_icon_mjs.js.map