var FileUploadWithPreview = (function (exports) {
  'use strict';

  exports.Events = void 0;

  (function (Events) {
    Events["IMAGE_ADDED"] = "fileUploadWithPreview:imagesAdded";
    Events["IMAGE_DELETED"] = "fileUploadWithPreview:imageDeleted";
    Events["CLEAR_BUTTON_CLICKED"] = "fileUploadWithPreview:clearButtonClicked";
    Events["IMAGE_MULTI_ITEM_CLICKED"] = "fileUploadWithPreview:imageMultiItemClicked";
  })(exports.Events || (exports.Events = {}));

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  function _arrayLikeToArray(arr, len) {
    if (len == null || len > arr.length) len = arr.length;

    for (var i = 0, arr2 = new Array(len); i < len; i++) {
      arr2[i] = arr[i];
    }

    return arr2;
  }

  function _arrayWithoutHoles(arr) {
    if (Array.isArray(arr)) return _arrayLikeToArray(arr);
  }

  function _iterableToArray(iter) {
    if (typeof Symbol !== "undefined" && iter[Symbol.iterator] != null || iter["@@iterator"] != null) return Array.from(iter);
  }

  function _unsupportedIterableToArray(o, minLen) {
    if (!o) return;
    if (typeof o === "string") return _arrayLikeToArray(o, minLen);
    var n = Object.prototype.toString.call(o).slice(8, -1);
    if (n === "Object" && o.constructor) n = o.constructor.name;
    if (n === "Map" || n === "Set") return Array.from(o);
    if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen);
  }

  function _nonIterableSpread() {
    throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
  }

  function _toConsumableArray(arr) {
    return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _unsupportedIterableToArray(arr) || _nonIterableSpread();
  }

  function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) {
    try {
      var info = gen[key](arg);
      var value = info.value;
    } catch (error) {
      reject(error);
      return;
    }

    if (info.done) {
      resolve(value);
    } else {
      Promise.resolve(value).then(_next, _throw);
    }
  }

  function _asyncToGenerator(fn) {
    return function () {
      var self = this,
          args = arguments;
      return new Promise(function (resolve, reject) {
        var gen = fn.apply(self, args);

        function _next(value) {
          asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value);
        }

        function _throw(err) {
          asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err);
        }

        _next(undefined);
      });
    };
  }

  function _classCallCheck(instance, Constructor) {
    if (!(instance instanceof Constructor)) {
      throw new TypeError("Cannot call a class as a function");
    }
  }

  function _defineProperties(target, props) {
    for (var i = 0; i < props.length; i++) {
      var descriptor = props[i];
      descriptor.enumerable = descriptor.enumerable || false;
      descriptor.configurable = true;
      if ("value" in descriptor) descriptor.writable = true;
      Object.defineProperty(target, descriptor.key, descriptor);
    }
  }

  function _createClass(Constructor, protoProps, staticProps) {
    if (protoProps) _defineProperties(Constructor.prototype, protoProps);
    if (staticProps) _defineProperties(Constructor, staticProps);
    Object.defineProperty(Constructor, "prototype", {
      writable: false
    });
    return Constructor;
  }

  function _defineProperty(obj, key, value) {
    if (key in obj) {
      Object.defineProperty(obj, key, {
        value: value,
        enumerable: true,
        configurable: true,
        writable: true
      });
    } else {
      obj[key] = value;
    }

    return obj;
  }

  var runtime = {exports: {}};

  /**
   * Copyright (c) 2014-present, Facebook, Inc.
   *
   * This source code is licensed under the MIT license found in the
   * LICENSE file in the root directory of this source tree.
   */

  (function (module) {
  var runtime = (function (exports) {

    var Op = Object.prototype;
    var hasOwn = Op.hasOwnProperty;
    var undefined$1; // More compressible than void 0.
    var $Symbol = typeof Symbol === "function" ? Symbol : {};
    var iteratorSymbol = $Symbol.iterator || "@@iterator";
    var asyncIteratorSymbol = $Symbol.asyncIterator || "@@asyncIterator";
    var toStringTagSymbol = $Symbol.toStringTag || "@@toStringTag";

    function define(obj, key, value) {
      Object.defineProperty(obj, key, {
        value: value,
        enumerable: true,
        configurable: true,
        writable: true
      });
      return obj[key];
    }
    try {
      // IE 8 has a broken Object.defineProperty that only works on DOM objects.
      define({}, "");
    } catch (err) {
      define = function(obj, key, value) {
        return obj[key] = value;
      };
    }

    function wrap(innerFn, outerFn, self, tryLocsList) {
      // If outerFn provided and outerFn.prototype is a Generator, then outerFn.prototype instanceof Generator.
      var protoGenerator = outerFn && outerFn.prototype instanceof Generator ? outerFn : Generator;
      var generator = Object.create(protoGenerator.prototype);
      var context = new Context(tryLocsList || []);

      // The ._invoke method unifies the implementations of the .next,
      // .throw, and .return methods.
      generator._invoke = makeInvokeMethod(innerFn, self, context);

      return generator;
    }
    exports.wrap = wrap;

    // Try/catch helper to minimize deoptimizations. Returns a completion
    // record like context.tryEntries[i].completion. This interface could
    // have been (and was previously) designed to take a closure to be
    // invoked without arguments, but in all the cases we care about we
    // already have an existing method we want to call, so there's no need
    // to create a new function object. We can even get away with assuming
    // the method takes exactly one argument, since that happens to be true
    // in every case, so we don't have to touch the arguments object. The
    // only additional allocation required is the completion record, which
    // has a stable shape and so hopefully should be cheap to allocate.
    function tryCatch(fn, obj, arg) {
      try {
        return { type: "normal", arg: fn.call(obj, arg) };
      } catch (err) {
        return { type: "throw", arg: err };
      }
    }

    var GenStateSuspendedStart = "suspendedStart";
    var GenStateSuspendedYield = "suspendedYield";
    var GenStateExecuting = "executing";
    var GenStateCompleted = "completed";

    // Returning this object from the innerFn has the same effect as
    // breaking out of the dispatch switch statement.
    var ContinueSentinel = {};

    // Dummy constructor functions that we use as the .constructor and
    // .constructor.prototype properties for functions that return Generator
    // objects. For full spec compliance, you may wish to configure your
    // minifier not to mangle the names of these two functions.
    function Generator() {}
    function GeneratorFunction() {}
    function GeneratorFunctionPrototype() {}

    // This is a polyfill for %IteratorPrototype% for environments that
    // don't natively support it.
    var IteratorPrototype = {};
    define(IteratorPrototype, iteratorSymbol, function () {
      return this;
    });

    var getProto = Object.getPrototypeOf;
    var NativeIteratorPrototype = getProto && getProto(getProto(values([])));
    if (NativeIteratorPrototype &&
        NativeIteratorPrototype !== Op &&
        hasOwn.call(NativeIteratorPrototype, iteratorSymbol)) {
      // This environment has a native %IteratorPrototype%; use it instead
      // of the polyfill.
      IteratorPrototype = NativeIteratorPrototype;
    }

    var Gp = GeneratorFunctionPrototype.prototype =
      Generator.prototype = Object.create(IteratorPrototype);
    GeneratorFunction.prototype = GeneratorFunctionPrototype;
    define(Gp, "constructor", GeneratorFunctionPrototype);
    define(GeneratorFunctionPrototype, "constructor", GeneratorFunction);
    GeneratorFunction.displayName = define(
      GeneratorFunctionPrototype,
      toStringTagSymbol,
      "GeneratorFunction"
    );

    // Helper for defining the .next, .throw, and .return methods of the
    // Iterator interface in terms of a single ._invoke method.
    function defineIteratorMethods(prototype) {
      ["next", "throw", "return"].forEach(function(method) {
        define(prototype, method, function(arg) {
          return this._invoke(method, arg);
        });
      });
    }

    exports.isGeneratorFunction = function(genFun) {
      var ctor = typeof genFun === "function" && genFun.constructor;
      return ctor
        ? ctor === GeneratorFunction ||
          // For the native GeneratorFunction constructor, the best we can
          // do is to check its .name property.
          (ctor.displayName || ctor.name) === "GeneratorFunction"
        : false;
    };

    exports.mark = function(genFun) {
      if (Object.setPrototypeOf) {
        Object.setPrototypeOf(genFun, GeneratorFunctionPrototype);
      } else {
        genFun.__proto__ = GeneratorFunctionPrototype;
        define(genFun, toStringTagSymbol, "GeneratorFunction");
      }
      genFun.prototype = Object.create(Gp);
      return genFun;
    };

    // Within the body of any async function, `await x` is transformed to
    // `yield regeneratorRuntime.awrap(x)`, so that the runtime can test
    // `hasOwn.call(value, "__await")` to determine if the yielded value is
    // meant to be awaited.
    exports.awrap = function(arg) {
      return { __await: arg };
    };

    function AsyncIterator(generator, PromiseImpl) {
      function invoke(method, arg, resolve, reject) {
        var record = tryCatch(generator[method], generator, arg);
        if (record.type === "throw") {
          reject(record.arg);
        } else {
          var result = record.arg;
          var value = result.value;
          if (value &&
              typeof value === "object" &&
              hasOwn.call(value, "__await")) {
            return PromiseImpl.resolve(value.__await).then(function(value) {
              invoke("next", value, resolve, reject);
            }, function(err) {
              invoke("throw", err, resolve, reject);
            });
          }

          return PromiseImpl.resolve(value).then(function(unwrapped) {
            // When a yielded Promise is resolved, its final value becomes
            // the .value of the Promise<{value,done}> result for the
            // current iteration.
            result.value = unwrapped;
            resolve(result);
          }, function(error) {
            // If a rejected Promise was yielded, throw the rejection back
            // into the async generator function so it can be handled there.
            return invoke("throw", error, resolve, reject);
          });
        }
      }

      var previousPromise;

      function enqueue(method, arg) {
        function callInvokeWithMethodAndArg() {
          return new PromiseImpl(function(resolve, reject) {
            invoke(method, arg, resolve, reject);
          });
        }

        return previousPromise =
          // If enqueue has been called before, then we want to wait until
          // all previous Promises have been resolved before calling invoke,
          // so that results are always delivered in the correct order. If
          // enqueue has not been called before, then it is important to
          // call invoke immediately, without waiting on a callback to fire,
          // so that the async generator function has the opportunity to do
          // any necessary setup in a predictable way. This predictability
          // is why the Promise constructor synchronously invokes its
          // executor callback, and why async functions synchronously
          // execute code before the first await. Since we implement simple
          // async functions in terms of async generators, it is especially
          // important to get this right, even though it requires care.
          previousPromise ? previousPromise.then(
            callInvokeWithMethodAndArg,
            // Avoid propagating failures to Promises returned by later
            // invocations of the iterator.
            callInvokeWithMethodAndArg
          ) : callInvokeWithMethodAndArg();
      }

      // Define the unified helper method that is used to implement .next,
      // .throw, and .return (see defineIteratorMethods).
      this._invoke = enqueue;
    }

    defineIteratorMethods(AsyncIterator.prototype);
    define(AsyncIterator.prototype, asyncIteratorSymbol, function () {
      return this;
    });
    exports.AsyncIterator = AsyncIterator;

    // Note that simple async functions are implemented on top of
    // AsyncIterator objects; they just return a Promise for the value of
    // the final result produced by the iterator.
    exports.async = function(innerFn, outerFn, self, tryLocsList, PromiseImpl) {
      if (PromiseImpl === void 0) PromiseImpl = Promise;

      var iter = new AsyncIterator(
        wrap(innerFn, outerFn, self, tryLocsList),
        PromiseImpl
      );

      return exports.isGeneratorFunction(outerFn)
        ? iter // If outerFn is a generator, return the full iterator.
        : iter.next().then(function(result) {
            return result.done ? result.value : iter.next();
          });
    };

    function makeInvokeMethod(innerFn, self, context) {
      var state = GenStateSuspendedStart;

      return function invoke(method, arg) {
        if (state === GenStateExecuting) {
          throw new Error("Generator is already running");
        }

        if (state === GenStateCompleted) {
          if (method === "throw") {
            throw arg;
          }

          // Be forgiving, per 25.3.3.3.3 of the spec:
          // https://people.mozilla.org/~jorendorff/es6-draft.html#sec-generatorresume
          return doneResult();
        }

        context.method = method;
        context.arg = arg;

        while (true) {
          var delegate = context.delegate;
          if (delegate) {
            var delegateResult = maybeInvokeDelegate(delegate, context);
            if (delegateResult) {
              if (delegateResult === ContinueSentinel) continue;
              return delegateResult;
            }
          }

          if (context.method === "next") {
            // Setting context._sent for legacy support of Babel's
            // function.sent implementation.
            context.sent = context._sent = context.arg;

          } else if (context.method === "throw") {
            if (state === GenStateSuspendedStart) {
              state = GenStateCompleted;
              throw context.arg;
            }

            context.dispatchException(context.arg);

          } else if (context.method === "return") {
            context.abrupt("return", context.arg);
          }

          state = GenStateExecuting;

          var record = tryCatch(innerFn, self, context);
          if (record.type === "normal") {
            // If an exception is thrown from innerFn, we leave state ===
            // GenStateExecuting and loop back for another invocation.
            state = context.done
              ? GenStateCompleted
              : GenStateSuspendedYield;

            if (record.arg === ContinueSentinel) {
              continue;
            }

            return {
              value: record.arg,
              done: context.done
            };

          } else if (record.type === "throw") {
            state = GenStateCompleted;
            // Dispatch the exception by looping back around to the
            // context.dispatchException(context.arg) call above.
            context.method = "throw";
            context.arg = record.arg;
          }
        }
      };
    }

    // Call delegate.iterator[context.method](context.arg) and handle the
    // result, either by returning a { value, done } result from the
    // delegate iterator, or by modifying context.method and context.arg,
    // setting context.delegate to null, and returning the ContinueSentinel.
    function maybeInvokeDelegate(delegate, context) {
      var method = delegate.iterator[context.method];
      if (method === undefined$1) {
        // A .throw or .return when the delegate iterator has no .throw
        // method always terminates the yield* loop.
        context.delegate = null;

        if (context.method === "throw") {
          // Note: ["return"] must be used for ES3 parsing compatibility.
          if (delegate.iterator["return"]) {
            // If the delegate iterator has a return method, give it a
            // chance to clean up.
            context.method = "return";
            context.arg = undefined$1;
            maybeInvokeDelegate(delegate, context);

            if (context.method === "throw") {
              // If maybeInvokeDelegate(context) changed context.method from
              // "return" to "throw", let that override the TypeError below.
              return ContinueSentinel;
            }
          }

          context.method = "throw";
          context.arg = new TypeError(
            "The iterator does not provide a 'throw' method");
        }

        return ContinueSentinel;
      }

      var record = tryCatch(method, delegate.iterator, context.arg);

      if (record.type === "throw") {
        context.method = "throw";
        context.arg = record.arg;
        context.delegate = null;
        return ContinueSentinel;
      }

      var info = record.arg;

      if (! info) {
        context.method = "throw";
        context.arg = new TypeError("iterator result is not an object");
        context.delegate = null;
        return ContinueSentinel;
      }

      if (info.done) {
        // Assign the result of the finished delegate to the temporary
        // variable specified by delegate.resultName (see delegateYield).
        context[delegate.resultName] = info.value;

        // Resume execution at the desired location (see delegateYield).
        context.next = delegate.nextLoc;

        // If context.method was "throw" but the delegate handled the
        // exception, let the outer generator proceed normally. If
        // context.method was "next", forget context.arg since it has been
        // "consumed" by the delegate iterator. If context.method was
        // "return", allow the original .return call to continue in the
        // outer generator.
        if (context.method !== "return") {
          context.method = "next";
          context.arg = undefined$1;
        }

      } else {
        // Re-yield the result returned by the delegate method.
        return info;
      }

      // The delegate iterator is finished, so forget it and continue with
      // the outer generator.
      context.delegate = null;
      return ContinueSentinel;
    }

    // Define Generator.prototype.{next,throw,return} in terms of the
    // unified ._invoke helper method.
    defineIteratorMethods(Gp);

    define(Gp, toStringTagSymbol, "Generator");

    // A Generator should always return itself as the iterator object when the
    // @@iterator function is called on it. Some browsers' implementations of the
    // iterator prototype chain incorrectly implement this, causing the Generator
    // object to not be returned from this call. This ensures that doesn't happen.
    // See https://github.com/facebook/regenerator/issues/274 for more details.
    define(Gp, iteratorSymbol, function() {
      return this;
    });

    define(Gp, "toString", function() {
      return "[object Generator]";
    });

    function pushTryEntry(locs) {
      var entry = { tryLoc: locs[0] };

      if (1 in locs) {
        entry.catchLoc = locs[1];
      }

      if (2 in locs) {
        entry.finallyLoc = locs[2];
        entry.afterLoc = locs[3];
      }

      this.tryEntries.push(entry);
    }

    function resetTryEntry(entry) {
      var record = entry.completion || {};
      record.type = "normal";
      delete record.arg;
      entry.completion = record;
    }

    function Context(tryLocsList) {
      // The root entry object (effectively a try statement without a catch
      // or a finally block) gives us a place to store values thrown from
      // locations where there is no enclosing try statement.
      this.tryEntries = [{ tryLoc: "root" }];
      tryLocsList.forEach(pushTryEntry, this);
      this.reset(true);
    }

    exports.keys = function(object) {
      var keys = [];
      for (var key in object) {
        keys.push(key);
      }
      keys.reverse();

      // Rather than returning an object with a next method, we keep
      // things simple and return the next function itself.
      return function next() {
        while (keys.length) {
          var key = keys.pop();
          if (key in object) {
            next.value = key;
            next.done = false;
            return next;
          }
        }

        // To avoid creating an additional object, we just hang the .value
        // and .done properties off the next function object itself. This
        // also ensures that the minifier will not anonymize the function.
        next.done = true;
        return next;
      };
    };

    function values(iterable) {
      if (iterable) {
        var iteratorMethod = iterable[iteratorSymbol];
        if (iteratorMethod) {
          return iteratorMethod.call(iterable);
        }

        if (typeof iterable.next === "function") {
          return iterable;
        }

        if (!isNaN(iterable.length)) {
          var i = -1, next = function next() {
            while (++i < iterable.length) {
              if (hasOwn.call(iterable, i)) {
                next.value = iterable[i];
                next.done = false;
                return next;
              }
            }

            next.value = undefined$1;
            next.done = true;

            return next;
          };

          return next.next = next;
        }
      }

      // Return an iterator with no values.
      return { next: doneResult };
    }
    exports.values = values;

    function doneResult() {
      return { value: undefined$1, done: true };
    }

    Context.prototype = {
      constructor: Context,

      reset: function(skipTempReset) {
        this.prev = 0;
        this.next = 0;
        // Resetting context._sent for legacy support of Babel's
        // function.sent implementation.
        this.sent = this._sent = undefined$1;
        this.done = false;
        this.delegate = null;

        this.method = "next";
        this.arg = undefined$1;

        this.tryEntries.forEach(resetTryEntry);

        if (!skipTempReset) {
          for (var name in this) {
            // Not sure about the optimal order of these conditions:
            if (name.charAt(0) === "t" &&
                hasOwn.call(this, name) &&
                !isNaN(+name.slice(1))) {
              this[name] = undefined$1;
            }
          }
        }
      },

      stop: function() {
        this.done = true;

        var rootEntry = this.tryEntries[0];
        var rootRecord = rootEntry.completion;
        if (rootRecord.type === "throw") {
          throw rootRecord.arg;
        }

        return this.rval;
      },

      dispatchException: function(exception) {
        if (this.done) {
          throw exception;
        }

        var context = this;
        function handle(loc, caught) {
          record.type = "throw";
          record.arg = exception;
          context.next = loc;

          if (caught) {
            // If the dispatched exception was caught by a catch block,
            // then let that catch block handle the exception normally.
            context.method = "next";
            context.arg = undefined$1;
          }

          return !! caught;
        }

        for (var i = this.tryEntries.length - 1; i >= 0; --i) {
          var entry = this.tryEntries[i];
          var record = entry.completion;

          if (entry.tryLoc === "root") {
            // Exception thrown outside of any try block that could handle
            // it, so set the completion value of the entire function to
            // throw the exception.
            return handle("end");
          }

          if (entry.tryLoc <= this.prev) {
            var hasCatch = hasOwn.call(entry, "catchLoc");
            var hasFinally = hasOwn.call(entry, "finallyLoc");

            if (hasCatch && hasFinally) {
              if (this.prev < entry.catchLoc) {
                return handle(entry.catchLoc, true);
              } else if (this.prev < entry.finallyLoc) {
                return handle(entry.finallyLoc);
              }

            } else if (hasCatch) {
              if (this.prev < entry.catchLoc) {
                return handle(entry.catchLoc, true);
              }

            } else if (hasFinally) {
              if (this.prev < entry.finallyLoc) {
                return handle(entry.finallyLoc);
              }

            } else {
              throw new Error("try statement without catch or finally");
            }
          }
        }
      },

      abrupt: function(type, arg) {
        for (var i = this.tryEntries.length - 1; i >= 0; --i) {
          var entry = this.tryEntries[i];
          if (entry.tryLoc <= this.prev &&
              hasOwn.call(entry, "finallyLoc") &&
              this.prev < entry.finallyLoc) {
            var finallyEntry = entry;
            break;
          }
        }

        if (finallyEntry &&
            (type === "break" ||
             type === "continue") &&
            finallyEntry.tryLoc <= arg &&
            arg <= finallyEntry.finallyLoc) {
          // Ignore the finally entry if control is not jumping to a
          // location outside the try/catch block.
          finallyEntry = null;
        }

        var record = finallyEntry ? finallyEntry.completion : {};
        record.type = type;
        record.arg = arg;

        if (finallyEntry) {
          this.method = "next";
          this.next = finallyEntry.finallyLoc;
          return ContinueSentinel;
        }

        return this.complete(record);
      },

      complete: function(record, afterLoc) {
        if (record.type === "throw") {
          throw record.arg;
        }

        if (record.type === "break" ||
            record.type === "continue") {
          this.next = record.arg;
        } else if (record.type === "return") {
          this.rval = this.arg = record.arg;
          this.method = "return";
          this.next = "end";
        } else if (record.type === "normal" && afterLoc) {
          this.next = afterLoc;
        }

        return ContinueSentinel;
      },

      finish: function(finallyLoc) {
        for (var i = this.tryEntries.length - 1; i >= 0; --i) {
          var entry = this.tryEntries[i];
          if (entry.finallyLoc === finallyLoc) {
            this.complete(entry.completion, entry.afterLoc);
            resetTryEntry(entry);
            return ContinueSentinel;
          }
        }
      },

      "catch": function(tryLoc) {
        for (var i = this.tryEntries.length - 1; i >= 0; --i) {
          var entry = this.tryEntries[i];
          if (entry.tryLoc === tryLoc) {
            var record = entry.completion;
            if (record.type === "throw") {
              var thrown = record.arg;
              resetTryEntry(entry);
            }
            return thrown;
          }
        }

        // The context.catch method must only be called with a location
        // argument that corresponds to a known catch block.
        throw new Error("illegal catch attempt");
      },

      delegateYield: function(iterable, resultName, nextLoc) {
        this.delegate = {
          iterator: values(iterable),
          resultName: resultName,
          nextLoc: nextLoc
        };

        if (this.method === "next") {
          // Deliberately forget the last sent value so that we don't
          // accidentally pass it on to the delegate.
          this.arg = undefined$1;
        }

        return ContinueSentinel;
      }
    };

    // Regardless of whether this script is executing as a CommonJS module
    // or not, return the runtime object so that we can declare the variable
    // regeneratorRuntime in the outer scope, which allows this module to be
    // injected easily by `bin/regenerator --include-runtime script.js`.
    return exports;

  }(
    // If this script is executing as a CommonJS module, use module.exports
    // as the regeneratorRuntime namespace. Otherwise create a new empty
    // object. Either way, the resulting object will be used to initialize
    // the regeneratorRuntime variable at the top of this file.
    module.exports 
  ));

  try {
    regeneratorRuntime = runtime;
  } catch (accidentalStrictMode) {
    // This module should not be running in strict mode, so the above
    // assignment should always work unless something is misconfigured. Just
    // in case runtime.js accidentally runs in strict mode, in modern engines
    // we can explicitly access globalThis. In older engines we can escape
    // strict mode using a global Function call. This could conceivably fail
    // if a Content Security Policy forbids using Function, but in that case
    // the proper solution is to fix the accidental strict mode problem. If
    // you've misconfigured your bundler to force strict mode and applied a
    // CSP to forbid Function, and you're not willing to fix either of those
    // problems, please detail your unique predicament in a GitHub issue.
    if (typeof globalThis === "object") {
      globalThis.regeneratorRuntime = runtime;
    } else {
      Function("r", "regeneratorRuntime = r")(runtime);
    }
  }
  }(runtime));

  var regenerator = runtime.exports;

  var UNIQUE_ID_IDENTIFIER = ':upload:';

  var MULTI_ITEM_CLEAR_ANIMATION_CLASS = 'multi-item-clear-animation';

  var DEFAULT_CHOOSE_FILE_TEXT = 'Choose file...';
  var DEFAULT_BROWSE_TEXT = 'Browse';
  var DEFAULT_FILES_SELECTED_TEXT = 'files selected';
  var DEFAULT_LABEL_TEXT = 'Upload';

  var generateUniqueId = function generateUniqueId() {
    return Math.random().toString(16).slice(2);
  };

  var FileUploadWithPreview = /*#__PURE__*/function () {
    /**
     * Currently selected files
     *
     * @default []
     */

    /**
     * Button to reset the instance
     */

    /**
     * Main container for the instance
     */

    /**
     * Display panel for the images
     */

    /**
     * Hidden input
     */

    /**
     * Visible input
     */
    function FileUploadWithPreview(uploadId) {
      var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};

      _classCallCheck(this, FileUploadWithPreview);

      _defineProperty(this, "options", {
        accept: '*',
        images: {
          backgroundImage: DEFAULT_BACKGROUND_IMAGE,
          baseImage: DEFAULT_BASE_IMAGE,
          successFileAltImage: DEFAULT_SUCCESS_FILE_ALT_IMAGE,
          successPdfImage: DEFAULT_SUCCESS_PDF_IMAGE,
          successVideoImage: DEFAULT_SUCCESS_VIDEO_IMAGE
        },
        maxFileCount: 0,
        multiple: false,
        presetFiles: [],
        showDeleteButtonOnImages: true,
        text: {
          browse: DEFAULT_BROWSE_TEXT,
          chooseFile: DEFAULT_CHOOSE_FILE_TEXT,
          label: DEFAULT_LABEL_TEXT,
          selectedCount: DEFAULT_FILES_SELECTED_TEXT
        }
      });

      if (!uploadId) {
        throw new Error('No uploadId found. You must initialize file-upload-with-preview with a unique uploadId.');
      }

      this.uploadId = uploadId;
      this.cachedFileArray = []; // Base options

      var maxFileCount = options.maxFileCount,
          multiple = options.multiple,
          presetFiles = options.presetFiles,
          showDeleteButtonOnImages = options.showDeleteButtonOnImages;
      this.options.showDeleteButtonOnImages = showDeleteButtonOnImages !== null && showDeleteButtonOnImages !== void 0 ? showDeleteButtonOnImages : true;
      this.options.maxFileCount = maxFileCount !== null && maxFileCount !== void 0 ? maxFileCount : 0;
      this.options.presetFiles = presetFiles !== null && presetFiles !== void 0 ? presetFiles : [];
      this.options.multiple = multiple !== null && multiple !== void 0 ? multiple : false; // Text options

      var _ref = options.text || {},
          browse = _ref.browse,
          chooseFile = _ref.chooseFile,
          label = _ref.label,
          selectedCount = _ref.selectedCount;

      this.options.text.chooseFile = chooseFile !== null && chooseFile !== void 0 ? chooseFile : this.options.text.chooseFile;
      this.options.text.browse = browse !== null && browse !== void 0 ? browse : this.options.text.browse;
      this.options.text.label = label !== null && label !== void 0 ? label : DEFAULT_LABEL_TEXT;
      this.options.text.selectedCount = selectedCount !== null && selectedCount !== void 0 ? selectedCount : this.options.text.selectedCount; // Elements

      var el = document.querySelector(".custom-file-container[data-upload-id=\"".concat(this.uploadId, "\"]"));

      if (!el) {
        throw new Error("Could not find a 'custom-file-container' with the id of: ".concat(this.uploadId));
      }

      this.el = el;
      this.el.innerHTML += "\n      <div class=\"label-container\">\n        <label>".concat(this.options.text.label, "</label>\n        <a class=\"clear-button\" href=\"javascript:void(0)\" title=\"Clear Image\">\n          &times;\n        </a>\n      </div>\n      <label class=\"input-container\">\n        <input\n          accept=\"").concat(this.options.accept, "\"\n          aria-label=\"Choose File\"\n          class=\"input-hidden\"\n          id=\"file-upload-with-preview-").concat(uploadId, "\"\n          ").concat(this.options.multiple ? 'multiple' : '', "\n          type=\"file\"\n        />\n        <span class=\"input-visible\"></span>\n      </label>\n      <div class=\"image-preview\"></div>\n    ");
      var inputHidden = this.el.querySelector('.custom-file-container .input-hidden');
      var inputVisible = this.el.querySelector('.custom-file-container .input-visible');
      var imagePreview = this.el.querySelector('.custom-file-container .image-preview');
      var clearButton = this.el.querySelector('.custom-file-container .clear-button');
      var allRequiredElementsFound = inputHidden != null && inputVisible != null && imagePreview != null && clearButton != null;

      if (allRequiredElementsFound) {
        this.inputHidden = inputHidden;
        this.inputVisible = inputVisible;
        this.inputVisible.innerHTML = this.options.text.chooseFile;
        this.imagePreview = imagePreview;
        this.clearButton = clearButton;
      } else {
        throw new Error("Cannot find all necessary elements for the id: ".concat(this.uploadId));
      } // Images


      var _ref2 = options.images || {},
          backgroundImage = _ref2.backgroundImage,
          baseImage = _ref2.baseImage,
          successFileAltImage = _ref2.successFileAltImage,
          successPdfImage = _ref2.successPdfImage,
          successVideoImage = _ref2.successVideoImage;

      this.options.images.baseImage = baseImage !== null && baseImage !== void 0 ? baseImage : this.options.images.baseImage;
      this.options.images.successPdfImage = successPdfImage !== null && successPdfImage !== void 0 ? successPdfImage : this.options.images.successPdfImage;
      this.options.images.successVideoImage = successVideoImage !== null && successVideoImage !== void 0 ? successVideoImage : this.options.images.successVideoImage;
      this.options.images.successFileAltImage = successFileAltImage !== null && successFileAltImage !== void 0 ? successFileAltImage : this.options.images.successFileAltImage;
      this.options.images.backgroundImage = backgroundImage !== null && backgroundImage !== void 0 ? backgroundImage : this.options.images.backgroundImage;
      this.addImagesFromPath(this.options.presetFiles);
      this.addBrowseButton(this.options.text.browse);
      this.imagePreview.style.backgroundImage = "url(\"".concat(this.options.images.baseImage, "\")");
      this.bindClickEvents();
    }

    _createClass(FileUploadWithPreview, [{
      key: "bindClickEvents",
      value: function bindClickEvents() {
        var _this = this;

        this.inputHidden.addEventListener('change', function (e) {
          var target = e.target;
          var files = target.files;
          if (files == null) return;

          _this.addFiles(files); // Handle issue with the same file being selected
          // https://stackoverflow.com/a/54633061/8014660


          target.value = '';
        }, true);
        this.clearButton.addEventListener('click', function () {
          var eventPayload = {
            detail: {
              uploadId: _this.uploadId
            }
          };
          var clearButtonClickedEvent = new CustomEvent(exports.Events.CLEAR_BUTTON_CLICKED, eventPayload);
          window.dispatchEvent(clearButtonClickedEvent);

          _this.resetPreviewPanel();
        }, true);
        this.imagePreview.addEventListener('click', function (e) {
          var target = e.target;
          if (!target) return;

          if (target.matches('.custom-file-container .image-preview-item-clear-icon')) {
            var fileName = target.getAttribute('data-upload-name');

            var selectedFileIndex = _this.cachedFileArray.findIndex(function (_ref3) {
              var name = _ref3.name;
              return name === fileName;
            });

            _this.deleteFileAtIndex(selectedFileIndex);
          }

          if (target.matches('.custom-file-container .image-preview-item')) {
            var clearIcon = target.querySelector('.image-preview-item-clear-icon');

            var _fileName = clearIcon === null || clearIcon === void 0 ? void 0 : clearIcon.getAttribute('data-upload-name');

            var fileIndex = _this.cachedFileArray.findIndex(function (_ref4) {
              var name = _ref4.name;
              return name === _fileName;
            });

            if (!fileIndex) return;
            var eventPayload = {
              detail: {
                cachedFileArray: _this.cachedFileArray,
                file: _this.cachedFileArray[fileIndex],
                index: fileIndex,
                uploadId: _this.uploadId
              }
            };
            var imageClickedEvent = new CustomEvent(exports.Events.IMAGE_MULTI_ITEM_CLICKED, eventPayload);
            window.dispatchEvent(imageClickedEvent);
          }
        });
      }
    }, {
      key: "addImagesFromPath",
      value: function () {
        var _addImagesFromPath = _asyncToGenerator( /*#__PURE__*/regenerator.mark(function _callee2(presetFiles) {
          var _this2 = this;

          return regenerator.wrap(function _callee2$(_context2) {
            while (1) {
              switch (_context2.prev = _context2.next) {
                case 0:
                  presetFiles.forEach( /*#__PURE__*/function () {
                    var _ref5 = _asyncToGenerator( /*#__PURE__*/regenerator.mark(function _callee(path) {
                      var defaultType, response, blob, file;
                      return regenerator.wrap(function _callee$(_context) {
                        while (1) {
                          switch (_context.prev = _context.next) {
                            case 0:
                              _context.prev = 0;
                              defaultType = 'image/jpeg';
                              _context.next = 4;
                              return fetch(path, {
                                mode: 'cors'
                              });

                            case 4:
                              response = _context.sent;
                              _context.next = 7;
                              return response.blob();

                            case 7:
                              blob = _context.sent;
                              file = new File([blob], 'preset-file', {
                                type: blob.type || defaultType
                              });

                              _this2.addFiles([file]);

                              _context.next = 16;
                              break;

                            case 12:
                              _context.prev = 12;
                              _context.t0 = _context["catch"](0);

                              if (_context.t0 instanceof Error) {
                                console.warn("".concat(_context.t0.message.toString()));
                              }

                              console.warn('Image cannot be added to the cachedFileArray.');

                            case 16:
                            case "end":
                              return _context.stop();
                          }
                        }
                      }, _callee, null, [[0, 12]]);
                    }));

                    return function (_x2) {
                      return _ref5.apply(this, arguments);
                    };
                  }());

                case 1:
                case "end":
                  return _context2.stop();
              }
            }
          }, _callee2);
        }));

        function addImagesFromPath(_x) {
          return _addImagesFromPath.apply(this, arguments);
        }

        return addImagesFromPath;
      }()
    }, {
      key: "addFiles",
      value: function addFiles(files) {
        var _this3 = this;

        if (!files.length) return;
        var fileArray = Array.from(files);

        if (this.options.multiple && this.options.maxFileCount > 0) {
          var totalFileCount = this.cachedFileArray.length + fileArray.length;
          var differenceFromMax = totalFileCount - this.options.maxFileCount;

          if (differenceFromMax > 0) {
            fileArray = fileArray.slice(0, fileArray.length - differenceFromMax);
          }
        }

        if (!this.options.multiple) {
          this.cachedFileArray = [];
        }

        fileArray.forEach(function (file) {
          var fileWithUniqueName = new File([file], "".concat(file.name || 'fallback-name').concat(UNIQUE_ID_IDENTIFIER).concat(generateUniqueId()), {
            type: file.type
          });

          _this3.cachedFileArray.push(fileWithUniqueName);

          _this3.addFileToPreviewPanel(fileWithUniqueName);
        });
        var eventPayload = {
          detail: {
            addedFilesCount: fileArray.length,
            cachedFileArray: this.cachedFileArray,
            files: files,
            uploadId: this.uploadId
          }
        };
        var imagesAddedEvent = new CustomEvent(exports.Events.IMAGE_ADDED, eventPayload);
        window.dispatchEvent(imagesAddedEvent);
      }
    }, {
      key: "addFileToPreviewPanel",
      value: function addFileToPreviewPanel(file) {
        var _this4 = this;

        if (this.cachedFileArray.length === 0) {
          this.inputVisible.innerHTML = this.options.text.chooseFile;
        } else if (this.cachedFileArray.length === 1) {
          this.inputVisible.textContent = file.name.split(UNIQUE_ID_IDENTIFIER)[0];
        } else {
          this.inputVisible.innerHTML = "".concat(this.cachedFileArray.length, " ").concat(this.options.text.selectedCount);
        }

        var reader = new FileReader();
        reader.readAsDataURL(file);

        reader.onload = function () {
          if (!_this4.options.multiple) {
            var image = _this4.options.images.successFileAltImage;

            if (file.type.match('image/png') || file.type.match('image/jpeg') || file.type.match('image/gif')) {
              image = "url(\"".concat(reader.result, "\")");
            } else if (file.type.match('application/pdf')) {
              image = "url(\"".concat(_this4.options.images.successPdfImage, "\")");
            } else if (file.type.match('video/*')) {
              image = "url(\"".concat(_this4.options.images.successVideoImage, "\")");
            }

            _this4.imagePreview.style.backgroundImage = image;
            return;
          }

          _this4.imagePreview.style.backgroundImage = "url(\"".concat(_this4.options.images.backgroundImage, "\")");

          var imageClearContent = function imageClearContent(name) {
            return "\n        <span class=\"image-preview-item-clear\">\n          <span class=\"image-preview-item-clear-icon\" data-upload-name=\"".concat(name, "\">\n            &times;\n          </span>\n        </span>\n      ");
          };

          var backgroundImage = _this4.options.images.successFileAltImage;

          if (file.type.match('image/png') || file.type.match('image/jpeg') || file.type.match('image/gif')) {
            backgroundImage = reader.result;
          } else if (file.type.match('application/pdf')) {
            backgroundImage = _this4.options.images.successPdfImage;
          } else if (file.type.match('video/*')) {
            backgroundImage = _this4.options.images.successVideoImage;
          }

          _this4.imagePreview.innerHTML += "\n        <div\n          class=\"image-preview-item\"\n          data-upload-name=\"".concat(file.name, "\"\n          style=\"background-image: url('").concat(backgroundImage, "'); \"\n        >\n          ").concat(_this4.options.showDeleteButtonOnImages ? imageClearContent(file.name) : undefined, "\n        </div>\n      ");
        };
      }
    }, {
      key: "replaceFiles",
      value: function replaceFiles(files) {
        if (!files.length) {
          throw new Error('Array must contain at least one file.');
        }

        this.cachedFileArray = files;
        this.refreshPreviewPanel();
      }
    }, {
      key: "replaceFileAtIndex",
      value: function replaceFileAtIndex(file, index) {
        if (!this.cachedFileArray[index]) {
          throw new Error("There is no file at index: ".concat(index));
        }

        this.cachedFileArray[index] = file;
        this.refreshPreviewPanel();
      }
    }, {
      key: "deleteFileAtIndex",
      value: function deleteFileAtIndex(index) {
        if (!this.cachedFileArray[index]) {
          throw new Error("There is no file at index ".concat(index));
        }

        this.cachedFileArray = [].concat(_toConsumableArray(this.cachedFileArray.slice(0, index)), _toConsumableArray(this.cachedFileArray.slice(index + 1)));
        this.refreshPreviewPanel();
        var eventPayload = {
          detail: {
            cachedFileArray: this.cachedFileArray,
            currentFileCount: this.cachedFileArray.length,
            index: index,
            uploadId: this.uploadId
          }
        };
        var imageDeletedEvent = new CustomEvent(exports.Events.IMAGE_DELETED, eventPayload);
        window.dispatchEvent(imageDeletedEvent);
      }
    }, {
      key: "refreshPreviewPanel",
      value: function refreshPreviewPanel() {
        var _this5 = this;

        var timeoutWait = 200; // Match the opacity animation on the MULTI_ITEM_CLEAR_ANIMATION_CLASS

        var imagePreviewItems = this.imagePreview.querySelectorAll('.image-preview-item');
        var imagePreviewItemsArray = Array.from(imagePreviewItems);
        imagePreviewItemsArray.forEach(function (item) {
          return item.classList.add(MULTI_ITEM_CLEAR_ANIMATION_CLASS);
        }); // Use the setTimeout to process images after the MULTI_ITEM_CLEAR_ANIMATION_CLASS is done

        setTimeout(function () {
          _this5.imagePreview.innerHTML = ''; // Reset the panel if there are no files

          if (!_this5.cachedFileArray.length) {
            _this5.resetPreviewPanel();

            return;
          }

          _this5.cachedFileArray.forEach(function (file) {
            return _this5.addFileToPreviewPanel(file);
          });
        }, timeoutWait);
      }
    }, {
      key: "addBrowseButton",
      value: function addBrowseButton(text) {
        this.inputVisible.innerHTML += "<span class=\"browse-button\">".concat(text, "</span>");
      }
    }, {
      key: "emulateInputSelection",
      value: function emulateInputSelection() {
        this.inputHidden.click();
      }
    }, {
      key: "resetPreviewPanel",
      value: function resetPreviewPanel() {
        this.inputHidden.value = '';
        this.inputVisible.innerHTML = DEFAULT_CHOOSE_FILE_TEXT;
        this.addBrowseButton(this.options.text.browse);
        this.imagePreview.style.backgroundImage = "url(\"".concat(this.options.images.baseImage, "\")");
        this.imagePreview.innerHTML = '';
        this.cachedFileArray = [];
      }
    }]);

    return FileUploadWithPreview;
  }();

  exports.DEFAULT_BACKGROUND_IMAGE = DEFAULT_BACKGROUND_IMAGE;
  exports.DEFAULT_BASE_IMAGE = DEFAULT_BASE_IMAGE;
  exports.DEFAULT_SUCCESS_FILE_ALT_IMAGE = DEFAULT_SUCCESS_FILE_ALT_IMAGE;
  exports.DEFAULT_SUCCESS_PDF_IMAGE = DEFAULT_SUCCESS_PDF_IMAGE;
  exports.DEFAULT_SUCCESS_VIDEO_IMAGE = DEFAULT_SUCCESS_VIDEO_IMAGE;
  exports.FileUploadWithPreview = FileUploadWithPreview;

  Object.defineProperty(exports, '__esModule', { value: true });

  return exports;

})({});
