text: "use strict";
  var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
      return new (P || (P = Promise))(function (resolve, reject) {
          function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
          function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
          function step(result) { result.done ? resolve(result.value) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); }
          step((generator = generator.apply(thisArg, _arguments || [])).next());
      });
  };
  var __generator = (this && this.__generator) || function (thisArg, body) {
      var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
      return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
      function verb(n) { return function (v) { return step([n, v]); }; }
      function step(op) {
          if (f) throw new TypeError("Generator is already executing.");
          while (_) try {
              if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
              if (y = 0, t) op = [op[0] & 2, t.value];
              switch (op[0]) {
                  case 0: case 1: t = op; break;
                  case 4: _.label++; return { value: op[1], done: false };
                  case 5: _.label++; y = op[1]; op = [0]; continue;
                  case 7: op = _.ops.pop(); _.trys.pop(); continue;
                  default:
                      if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
                      if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
                      if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
                      if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
                      if (t[2]) _.ops.pop();
                      _.trys.pop(); continue;
              }
              op = body.call(thisArg, _);
          } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
          if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
      }
  };
  Object.defineProperty(exports, "__esModule", { value: true });
  var features_1 = require("./features");
  var logger_1 = require("./logger");
  var CacheStorage = /** @class */ (function () {
      function CacheStorage() {
      }
      CacheStorage.create = function (name, options) {
          return (CacheStorage._caches[name] = new Cache(name, options));
      };
      CacheStorage.destroy = function (name) {
          delete CacheStorage._caches[name];
      };
      CacheStorage.open = function (name) {
          var cache = CacheStorage._caches[name];
          if (typeof cache !== 'undefined') {
              return cache;
          }
          throw new Error("Cache with key \"" + name + "\" not found");
      };
      CacheStorage.getOrigin = function (url) {
          var link = CacheStorage._link;
          if (!link) {
              return 'about:blank';
          }
          link.href = url;
          link.href = link.href; // IE9, LOL! - http://jsfiddle.net/niklasvh/2e48b/
          return link.protocol + link.hostname + link.port;
      };
      CacheStorage.isSameOrigin = function (src) {
          return CacheStorage.getOrigin(src) === CacheStorage._origin;
      };
      CacheStorage.setContext = function (window) {
          CacheStorage._link = window.document.createElement('a');
          CacheStorage._origin = CacheStorage.getOrigin(window.location.href);
      };
      CacheStorage.getInstance = function () {
          var current = CacheStorage._current;
          if (current === null) {
              throw new Error("No cache instance attached");
          }
          return current;
      };
      CacheStorage.attachInstance = function (cache) {
          CacheStorage._current = cache;
      };
      CacheStorage.detachInstance = function () {
          CacheStorage._current = null;
      };
      CacheStorage._caches = {};
      CacheStorage._origin = 'about:blank';
      CacheStorage._current = null;
      return CacheStorage;
  }());
  exports.CacheStorage = CacheStorage;
  var Cache = /** @class */ (function () {
      function Cache(id, options) {
          this.id = id;
          this._options = options;
          this._cache = {};
      }
      Cache.prototype.addImage = function (src) {
          var result = Promise.resolve();
          if (this.has(src)) {
              return result;
          }
          if (isBlobImage(src) || isRenderable(src)) {
              this._cache[src] = this.loadImage(src);
              return result;
          }
          return result;
      };
      // eslint-disable-next-line @typescript-eslint/no-explicit-any
      Cache.prototype.match = function (src) {
          return this._cache[src];
      };
      Cache.prototype.loadImage = function (key) {
          return __awaiter(this, void 0, void 0, function () {
              var isSameOrigin, useCORS, useProxy, src;
              var _this = this;
              return __generator(this, function (_a) {
                  switch (_a.label) {
                      case 0:
                          isSameOrigin = CacheStorage.isSameOrigin(key);
                          useCORS = !isInlineImage(key) && this._options.useCORS === true && features_1.FEATURES.SUPPORT_CORS_IMAGES && !isSameOrigin;
                          useProxy = !isInlineImage(key) &&
                              !isSameOrigin &&
                              typeof this._options.proxy === 'string' &&
                              features_1.FEATURES.SUPPORT_CORS_XHR &&
                              !useCORS;
                          if (!isSameOrigin && this._options.allowTaint === false && !isInlineImage(key) && !useProxy && !useCORS) {
                              return [2 /*return*/];
                          }
                          src = key;
                          if (!useProxy) return [3 /*break*/, 2];
                          return [4 /*yield*/, this.proxy(src)];
                      case 1:
                          src = _a.sent();
                          _a.label = 2;
                      case 2:
                          logger_1.Logger.getInstance(this.id).debug("Added image " + key.substring(0, 256));
                          return [4 /*yield*/, new Promise(function (resolve, reject) {
                                  var img = new Image();
                                  img.onload = function () { return resolve(img); };
                                  img.onerror = reject;
                                  //ios safari 10.3 taints canvas with data urls unless crossOrigin is set to anonymous
                                  if (isInlineBase64Image(src) || useCORS) {
                                      img.crossOrigin = 'anonymous';
                                      img.setAttribute('crossOrigin', 'anonymous');
                                      src += '?v=' + new Date().getTime();
                                      img.src = src;
                                  }
                                  img.src = src;
                                  if (img.complete === true) {
                                      // Inline XML images may fail to parse, throwing an Error later on
                                      setTimeout(function () { return resolve(img); }, 500);
                                  }
                                  if (_this._options.imageTimeout > 0) {
                                      setTimeout(function () { return reject("Timed out (" + _this._options.imageTimeout + "ms) loading image"); }, _this._options.imageTimeout);
                                  }
                              })];
                      case 3: return [2 /*return*/, _a.sent()];
                  }
              });
          });
      };
      Cache.prototype.has = function (key) {
          return typeof this._cache[key] !== 'undefined';
      };
      Cache.prototype.keys = function () {
          return Promise.resolve(Object.keys(this._cache));
      };
      Cache.prototype.proxy = function (src) {
          var _this = this;
          var proxy = this._options.proxy;
          if (!proxy) {
              throw new Error('No proxy defined');
          }
          var key = src.substring(0, 256);
          return new Promise(function (resolve, reject) {
              var responseType = features_1.FEATURES.SUPPORT_RESPONSE_TYPE ? 'blob' : 'text';
              var xhr = new XMLHttpRequest();
              xhr.onload = function () {
                  if (xhr.status === 200) {
                      if (responseType === 'text') {
                          resolve(xhr.response);
                      }
                      else {
                          var reader_1 = new FileReader();
                          reader_1.addEventListener('load', function () { return resolve(reader_1.result); }, false);
                          reader_1.addEventListener('error', function (e) { return reject(e); }, false);
                          reader_1.readAsDataURL(xhr.response);
                      }
                  }
                  else {
                      reject("Failed to proxy resource " + key + " with status code " + xhr.status);
                  }
              };
              xhr.onerror = reject;
              xhr.open('GET', proxy + "?url=" + encodeURIComponent(src) + "&responseType=" + responseType);
              if (responseType !== 'text' && xhr instanceof XMLHttpRequest) {
                  xhr.responseType = responseType;
              }
              if (_this._options.imageTimeout) {
                  var timeout_1 = _this._options.imageTimeout;
                  xhr.timeout = timeout_1;
                  xhr.ontimeout = function () { return reject("Timed out (" + timeout_1 + "ms) proxying " + key); };
              }
              xhr.send();
          });
      };
      return Cache;
  }());
  exports.Cache = Cache;
  var INLINE_SVG = /^data:image\/svg\+xml/i;
  var INLINE_BASE64 = /^data:image\/.*;base64,/i;
  var INLINE_IMG = /^data:image\/.*/i;
  var isRenderable = function (src) { return features_1.FEATURES.SUPPORT_SVG_DRAWING || !isSVG(src); };
  var isInlineImage = function (src) { return INLINE_IMG.test(src); };
  var isInlineBase64Image = function (src) { return INLINE_BASE64.test(src); };
  var isBlobImage = function (src) { return src.substr(0, 4) === 'blob'; };
  var isSVG = function (src) { return src.substr(-3).toLowerCase() === 'svg' || INLINE_SVG.test(src); };
  //# sourceMappingURL=cache-storage.js.map