/*!
 * Name: vue-upload-component
 * Version: 2.8.9
 * Author: LianYue
 */
(function (global, factory) {
  typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
  typeof define === 'function' && define.amd ? define(factory) :
  (global.VueUploadComponent = factory());
}(this, (function () { 'use strict';

  /**
   * Creates a XHR request
   *
   * @param {Object} options
   */
  var createRequest = function createRequest(options) {
    var xhr = new XMLHttpRequest();
    xhr.open(options.method || 'GET', options.url);
    xhr.responseType = 'json';
    if (options.headers) {
      Object.keys(options.headers).forEach(function (key) {
        xhr.setRequestHeader(key, options.headers[key]);
      });
    }

    return xhr;
  };

  /**
   * Sends a XHR request with certain body
   *
   * @param {XMLHttpRequest} xhr
   * @param {Object} body
   */
  var sendRequest = function sendRequest(xhr, body) {
    return new Promise(function (resolve, reject) {
      xhr.onload = function () {
        if (xhr.status >= 200 && xhr.status < 300) {
          var response;
          try {
            response = JSON.parse(xhr.response);
          } catch (err) {
            response = xhr.response;
          }
          resolve(response);
        } else {
          reject(xhr.response);
        }
      };
      xhr.onerror = function () {
        return reject(xhr.response);
      };
      xhr.send(JSON.stringify(body));
    });
  };

  /**
   * Sends a XHR request with certain form data
   *
   * @param {XMLHttpRequest} xhr
   * @param {Object} data
   */
  var sendFormRequest = function sendFormRequest(xhr, data) {
    var body = new FormData();
    for (var name in data) {
      body.append(name, data[name]);
    }

    return new Promise(function (resolve, reject) {
      xhr.onload = function () {
        if (xhr.status >= 200 && xhr.status < 300) {
          var response;
          try {
            response = JSON.parse(xhr.response);
          } catch (err) {
            response = xhr.response;
          }
          resolve(response);
        } else {
          reject(xhr.response);
        }
      };
      xhr.onerror = function () {
        return reject(xhr.response);
      };
      xhr.send(body);
    });
  };

  /**
   * Creates and sends XHR request
   *
   * @param {Object} options
   *
   * @returns Promise
   */
  function request (options) {
    var xhr = createRequest(options);

    return sendRequest(xhr, options.body);
  }

  var _createClass = 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); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

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

  var ChunkUploadHandler = function () {
    /**
     * Constructor
     *
     * @param {File} file
     * @param {Object} options
     */
    function ChunkUploadHandler(file, options) {
      _classCallCheck(this, ChunkUploadHandler);

      this.file = file;
      this.options = options;
    }

    /**
     * Gets the max retries from options
     */


    _createClass(ChunkUploadHandler, [{
      key: 'createChunks',


      /**
       * Creates all the chunks in the initial state
       */
      value: function createChunks() {
        this.chunks = [];

        var start = 0;
        var end = this.chunkSize;
        while (start < this.fileSize) {
          this.chunks.push({
            blob: this.file.file.slice(start, end),
            startOffset: start,
            active: false,
            retries: this.maxRetries
          });
          start = end;
          end = start + this.chunkSize;
        }
      }

      /**
       * Updates the progress of the file with the handler's progress
       */

    }, {
      key: 'updateFileProgress',
      value: function updateFileProgress() {
        this.file.progress = this.progress;
      }

      /**
       * Paues the upload process
       * - Stops all active requests
       * - Sets the file not active
       */

    }, {
      key: 'pause',
      value: function pause() {
        this.file.active = false;
        this.stopChunks();
      }

      /**
       * Stops all the current chunks
       */

    }, {
      key: 'stopChunks',
      value: function stopChunks() {
        this.chunksUploading.forEach(function (chunk) {
          chunk.xhr.abort();
          chunk.active = false;
        });
      }

      /**
       * Resumes the file upload
       * - Sets the file active
       * - Starts the following chunks
       */

    }, {
      key: 'resume',
      value: function resume() {
        this.file.active = true;
        this.startChunking();
      }

      /**
       * Starts the file upload
       *
       * @returns Promise
       * - resolve  The file was uploaded
       * - reject   The file upload failed
       */

    }, {
      key: 'upload',
      value: function upload() {
        var _this = this;

        this.promise = new Promise(function (resolve, reject) {
          _this.resolve = resolve;
          _this.reject = reject;
        });
        this.start();

        return this.promise;
      }

      /**
       * Start phase
       * Sends a request to the backend to initialise the chunks
       */

    }, {
      key: 'start',
      value: function start() {
        var _this2 = this;

        request({
          method: 'POST',
          headers: Object.assign({}, this.headers, {
            'Content-Type': 'application/json'
          }),
          url: this.action,
          body: Object.assign(this.startBody, {
            phase: 'start',
            mime_type: this.fileType,
            size: this.fileSize,
            name: this.fileName
          })
        }).then(function (res) {
          if (res.status !== 'success') {
            _this2.file.response = res;
            return _this2.reject('server');
          }

          _this2.sessionId = res.data.session_id;
          _this2.chunkSize = res.data.end_offset;

          _this2.createChunks();
          _this2.startChunking();
        }).catch(function (res) {
          _this2.file.response = res;
          _this2.reject('server');
        });
      }

      /**
       * Starts to upload chunks
       */

    }, {
      key: 'startChunking',
      value: function startChunking() {
        for (var i = 0; i < this.maxActiveChunks; i++) {
          this.uploadNextChunk();
        }
      }

      /**
       * Uploads the next chunk
       * - Won't do anything if the process is paused
       * - Will start finish phase if there are no more chunks to upload
       */

    }, {
      key: 'uploadNextChunk',
      value: function uploadNextChunk() {
        if (this.file.active) {
          if (this.hasChunksToUpload) {
            return this.uploadChunk(this.chunksToUpload[0]);
          }

          if (this.chunksUploading.length === 0) {
            return this.finish();
          }
        }
      }

      /**
       * Uploads a chunk
       * - Sends the chunk to the backend
       * - Sets the chunk as uploaded if everything went well
       * - Decreases the number of retries if anything went wrong
       * - Fails if there are no more retries
       *
       * @param {Object} chunk
       */

    }, {
      key: 'uploadChunk',
      value: function uploadChunk(chunk) {
        var _this3 = this;

        chunk.progress = 0;
        chunk.active = true;
        this.updateFileProgress();
        chunk.xhr = createRequest({
          method: 'POST',
          headers: this.headers,
          url: this.action
        });

        chunk.xhr.upload.addEventListener('progress', function (evt) {
          if (evt.lengthComputable) {
            chunk.progress = Math.round(evt.loaded / evt.total * 100);
          }
        }, false);

        sendFormRequest(chunk.xhr, Object.assign(this.uploadBody, {
          phase: 'upload',
          session_id: this.sessionId,
          start_offset: chunk.startOffset,
          chunk: chunk.blob
        })).then(function (res) {
          chunk.active = false;
          if (res.status === 'success') {
            chunk.uploaded = true;
          } else {
            if (chunk.retries-- <= 0) {
              _this3.stopChunks();
              return _this3.reject('upload');
            }
          }

          _this3.uploadNextChunk();
        }).catch(function () {
          chunk.active = false;
          if (chunk.retries-- <= 0) {
            _this3.stopChunks();
            return _this3.reject('upload');
          }

          _this3.uploadNextChunk();
        });
      }

      /**
       * Finish phase
       * Sends a request to the backend to finish the process
       */

    }, {
      key: 'finish',
      value: function finish() {
        var _this4 = this;

        this.updateFileProgress();

        request({
          method: 'POST',
          headers: Object.assign({}, this.headers, {
            'Content-Type': 'application/json'
          }),
          url: this.action,
          body: Object.assign(this.finishBody, {
            phase: 'finish',
            session_id: this.sessionId
          })
        }).then(function (res) {
          _this4.file.response = res;
          if (res.status !== 'success') {
            return _this4.reject('server');
          }

          _this4.resolve(res);
        }).catch(function (res) {
          _this4.file.response = res;
          _this4.reject('server');
        });
      }
    }, {
      key: 'maxRetries',
      get: function get() {
        return parseInt(this.options.maxRetries);
      }

      /**
       * Gets the max number of active chunks being uploaded at once from options
       */

    }, {
      key: 'maxActiveChunks',
      get: function get() {
        return parseInt(this.options.maxActive);
      }

      /**
       * Gets the file type
       */

    }, {
      key: 'fileType',
      get: function get() {
        return this.file.type;
      }

      /**
       * Gets the file size
       */

    }, {
      key: 'fileSize',
      get: function get() {
        return this.file.size;
      }

      /**
       * Gets the file size
       */

    }, {
      key: 'fileName',
      get: function get() {
        return this.file.name;
      }

      /**
       * Gets action (url) to upload the file
       */

    }, {
      key: 'action',
      get: function get() {
        return this.options.action || null;
      }

      /**
       * Gets the body to be merged when sending the request in start phase
       */

    }, {
      key: 'startBody',
      get: function get() {
        return this.options.startBody || {};
      }

      /**
       * Gets the body to be merged when sending the request in upload phase
       */

    }, {
      key: 'uploadBody',
      get: function get() {
        return this.options.uploadBody || {};
      }

      /**
       * Gets the body to be merged when sending the request in finish phase
       */

    }, {
      key: 'finishBody',
      get: function get() {
        return this.options.finishBody || {};
      }

      /**
       * Gets the headers of the requests from options
       */

    }, {
      key: 'headers',
      get: function get() {
        return this.options.headers || {};
      }

      /**
       * Whether it's ready to upload files or not
       */

    }, {
      key: 'readyToUpload',
      get: function get() {
        return !!this.chunks;
      }

      /**
       * Gets the progress of the chunk upload
       * - Gets all the completed chunks
       * - Gets the progress of all the chunks that are being uploaded
       */

    }, {
      key: 'progress',
      get: function get() {
        var _this5 = this;

        var completedProgress = this.chunksUploaded.length / this.chunks.length * 100;
        var uploadingProgress = this.chunksUploading.reduce(function (progress, chunk) {
          return progress + (chunk.progress | 0) / _this5.chunks.length;
        }, 0);

        return Math.min(completedProgress + uploadingProgress, 100);
      }

      /**
       * Gets all the chunks that are pending to be uploaded
       */

    }, {
      key: 'chunksToUpload',
      get: function get() {
        return this.chunks.filter(function (chunk) {
          return !chunk.active && !chunk.uploaded;
        });
      }

      /**
       * Whether there are chunks to upload or not
       */

    }, {
      key: 'hasChunksToUpload',
      get: function get() {
        return this.chunksToUpload.length > 0;
      }

      /**
       * Gets all the chunks that are uploading
       */

    }, {
      key: 'chunksUploading',
      get: function get() {
        return this.chunks.filter(function (chunk) {
          return !!chunk.xhr && !!chunk.active;
        });
      }

      /**
       * Gets all the chunks that have finished uploading
       */

    }, {
      key: 'chunksUploaded',
      get: function get() {
        return this.chunks.filter(function (chunk) {
          return !!chunk.uploaded;
        });
      }
    }]);

    return ChunkUploadHandler;
  }();

  //
  //
  //
  //
  //
  //
  //
  //
  //
  //
  //
  //
  //

  var script = {
    methods: {
      change: function change(e) {
        this.$destroy();
        this.$parent.addInputFile(e.target);
        // eslint-disable-next-line
        new this.constructor({
          parent: this.$parent,
          el: this.$el
        });
      }
    }
  };

  var __vue_script__ = script;

  /* template */
  var __vue_render__ = function __vue_render__() {
    var _vm = this;var _h = _vm.$createElement;var _c = _vm._self._c || _h;return _c('input', { attrs: { "type": "file", "name": _vm.$parent.name, "id": _vm.$parent.inputId || _vm.$parent.name, "accept": _vm.$parent.accept, "capture": _vm.$parent.capture, "webkitdirectory": _vm.$parent.directory && _vm.$parent.features.directory, "directory": _vm.$parent.directory && _vm.$parent.features.directory, "multiple": _vm.$parent.multiple && _vm.$parent.features.html5 }, on: { "change": _vm.change } }, []);
  };
  var __vue_staticRenderFns__ = [];

  var __vue_template__ = typeof __vue_render__ !== 'undefined' ? { render: __vue_render__, staticRenderFns: __vue_staticRenderFns__ } : {};
  /* style */
  var __vue_inject_styles__ = undefined;
  /* scoped */
  var __vue_scope_id__ = undefined;
  /* module identifier */
  var __vue_module_identifier__ = "data-v-36701cce";
  /* functional template */
  var __vue_is_functional_template__ = false;
  /* component normalizer */
  function __vue_normalize__(template, style, script$$1, scope, functional, moduleIdentifier, createInjector, createInjectorSSR) {
    var component = script$$1 || {};

    if (!component.render) {
      component.render = template.render;
      component.staticRenderFns = template.staticRenderFns;
      component._compiled = true;

      if (functional) component.functional = true;
    }

    component._scopeId = scope;

    return component;
  }
  /* style inject */

  /* style inject SSR */
  function __vue_create_injector_ssr__(context) {
    if (!context && typeof __VUE_SSR_CONTEXT__ !== 'undefined') {
      context = __VUE_SSR_CONTEXT__;
    }

    if (!context) return function () {};

    if (!context.hasOwnProperty('styles')) {
      Object.defineProperty(context, 'styles', {
        enumerable: true,
        get: function get() {
          return context._styles;
        }
      });
      context._renderStyles = renderStyles;
    }

    function renderStyles(styles) {
      var css = '';
      var _iteratorNormalCompletion = true;
      var _didIteratorError = false;
      var _iteratorError = undefined;

      try {
        for (var _iterator = styles[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
          var _ref = _step.value;
          var ids = _ref.ids,
              media = _ref.media,
              parts = _ref.parts;

          css += '<style data-vue-ssr-id="' + ids.join(' ') + '"' + (media ? ' media="' + media + '"' : '') + '>' + parts.join('\n') + '</style>';
        }
      } catch (err) {
        _didIteratorError = true;
        _iteratorError = err;
      } finally {
        try {
          if (!_iteratorNormalCompletion && _iterator.return) {
            _iterator.return();
          }
        } finally {
          if (_didIteratorError) {
            throw _iteratorError;
          }
        }
      }

      return css;
    }

    return function addStyle(id, css) {
      var group = css.media || 'default';
      var style = context._styles[group] || (context._styles[group] = { ids: [], parts: [] });

      if (!style.ids.includes(id)) {
        style.media = css.media;
        style.ids.push(id);
        var code = css.source;
        style.parts.push(code);
      }
    };
  }

  var InputFile = __vue_normalize__(__vue_template__, __vue_inject_styles__, typeof __vue_script__ === 'undefined' ? {} : __vue_script__, __vue_scope_id__, __vue_is_functional_template__, __vue_module_identifier__, typeof __vue_create_injector__ !== 'undefined' ? __vue_create_injector__ : function () {}, typeof __vue_create_injector_ssr__ !== 'undefined' ? __vue_create_injector_ssr__ : function () {});

  var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };

  var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };

  function _toConsumableArray(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } else { return Array.from(arr); } }

  var CHUNK_DEFAULT_OPTIONS = {
    headers: {},
    action: '',
    minSize: 1048576,
    maxActive: 3,
    maxRetries: 5,

    handler: ChunkUploadHandler
  };

  var script$1 = {
    components: {
      InputFile: InputFile
    },
    props: {
      inputId: {
        type: String
      },

      name: {
        type: String,
        default: 'file'
      },

      accept: {
        type: String
      },

      capture: {},

      multiple: {
        type: Boolean
      },

      maximum: {
        type: Number,
        default: function _default() {
          return this.multiple ? 0 : 1;
        }
      },

      addIndex: {
        type: [Boolean, Number]
      },

      directory: {
        type: Boolean
      },

      postAction: {
        type: String
      },

      putAction: {
        type: String
      },

      customAction: {
        type: Function
      },

      headers: {
        type: Object,
        default: Object
      },

      data: {
        type: Object,
        default: Object
      },

      timeout: {
        type: Number,
        default: 0
      },

      drop: {
        default: false
      },

      dropDirectory: {
        type: Boolean,
        default: true
      },

      size: {
        type: Number,
        default: 0
      },

      extensions: {
        default: Array
      },

      value: {
        type: Array,
        default: Array
      },

      thread: {
        type: Number,
        default: 1
      },

      // Chunk upload enabled
      chunkEnabled: {
        type: Boolean,
        default: false
      },

      // Chunk upload properties
      chunk: {
        type: Object,
        default: function _default() {
          return CHUNK_DEFAULT_OPTIONS;
        }
      }
    },

    data: function data() {
      return {
        files: this.value,
        features: {
          html5: true,
          directory: false,
          drag: false
        },

        active: false,
        dropActive: false,

        uploading: 0,

        destroy: false
      };
    },


    /**
     * mounted
     * @return {[type]} [description]
     */
    mounted: function mounted() {
      var input = document.createElement('input');
      input.type = 'file';
      input.multiple = true;

      // html5 特征
      if (window.FormData && input.files) {
        // 上传目录特征
        if (typeof input.webkitdirectory === 'boolean' || typeof input.directory === 'boolean') {
          this.features.directory = true;
        }

        // 拖拽特征
        if (this.features.html5 && typeof input.ondrop !== 'undefined') {
          this.features.drop = true;
        }
      } else {
        this.features.html5 = false;
      }

      // files 定位缓存
      this.maps = {};

      this.$nextTick(function () {

        // 更新下父级
        if (this.$parent) {
          this.$parent.$forceUpdate();
        }

        // 拖拽渲染
        this.watchDrop(this.drop);
      });
    },


    /**
     * beforeDestroy
     * @return {[type]} [description]
     */
    beforeDestroy: function beforeDestroy() {
      // 已销毁
      this.destroy = true;

      // 设置成不激活
      this.active = false;
    },


    computed: {
      /**
       * uploading 正在上传的线程
       * @return {[type]} [description]
       */

      /**
       * uploaded 文件列表是否全部已上传
       * @return {[type]} [description]
       */
      uploaded: function uploaded() {
        var file = void 0;
        for (var i = 0; i < this.files.length; i++) {
          file = this.files[i];
          if (file.fileObject && !file.error && !file.success) {
            return false;
          }
        }
        return true;
      },
      chunkOptions: function chunkOptions() {
        return Object.assign(CHUNK_DEFAULT_OPTIONS, this.chunk);
      },
      className: function className() {
        return ['file-uploads', this.features.html5 ? 'file-uploads-html5' : 'file-uploads-html4', this.features.directory && this.directory ? 'file-uploads-directory' : undefined, this.features.drop && this.drop ? 'file-uploads-drop' : undefined];
      }
    },

    watch: {
      active: function active(_active) {
        this.watchActive(_active);
      },
      dropActive: function dropActive() {
        if (this.$parent) {
          this.$parent.$forceUpdate();
        }
      },
      drop: function drop(value) {
        this.watchDrop(value);
      },
      value: function value(files) {
        if (this.files === files) {
          return;
        }
        this.files = files;

        var oldMaps = this.maps;

        // 重写 maps 缓存
        this.maps = {};
        for (var i = 0; i < this.files.length; i++) {
          var file = this.files[i];
          this.maps[file.id] = file;
        }

        // add, update
        for (var key in this.maps) {
          var newFile = this.maps[key];
          var oldFile = oldMaps[key];
          if (newFile !== oldFile) {
            this.emitFile(newFile, oldFile);
          }
        }

        // delete
        for (var _key in oldMaps) {
          if (!this.maps[_key]) {
            this.emitFile(undefined, oldMaps[_key]);
          }
        }
      }
    },

    methods: {

      // 清空
      clear: function clear() {
        if (this.files.length) {
          var files = this.files;
          this.files = [];

          // 定位
          this.maps = {};

          // 事件
          this.emitInput();
          for (var i = 0; i < files.length; i++) {
            this.emitFile(undefined, files[i]);
          }
        }
        return true;
      },


      // 选择
      get: function get(id) {
        if (!id) {
          return false;
        }

        if ((typeof id === 'undefined' ? 'undefined' : _typeof(id)) === 'object') {
          return this.maps[id.id] || false;
        }

        return this.maps[id] || false;
      },


      // 添加
      add: function add(_files) {
        var index = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : this.addIndex;

        var files = _files;
        var isArray = files instanceof Array;

        // 不是数组整理成数组
        if (!isArray) {
          files = [files];
        }

        // 遍历规范对象
        var addFiles = [];
        for (var i = 0; i < files.length; i++) {
          var file = files[i];
          if (this.features.html5 && file instanceof Blob) {
            file = {
              file: file,
              size: file.size,
              name: file.webkitRelativePath || file.relativePath || file.name || 'unknown',
              type: file.type
            };
          }
          var fileObject = false;
          if (file.fileObject === false) ; else if (file.fileObject) {
            fileObject = true;
          } else if (typeof Element !== 'undefined' && file.el instanceof Element) {
            fileObject = true;
          } else if (typeof Blob !== 'undefined' && file.file instanceof Blob) {
            fileObject = true;
          }
          if (fileObject) {
            file = _extends({
              fileObject: true,
              size: -1,
              name: 'Filename',
              type: '',
              active: false,
              error: '',
              success: false,
              putAction: this.putAction,
              postAction: this.postAction,
              timeout: this.timeout
            }, file, {
              response: {},

              progress: '0.00', // 只读
              speed: 0 // 只读
              // xhr: false,                // 只读
              // iframe: false,             // 只读
            });

            file.data = _extends({}, this.data, file.data ? file.data : {});

            file.headers = _extends({}, this.headers, file.headers ? file.headers : {});
          }

          // 必须包含 id
          if (!file.id) {
            file.id = Math.random().toString(36).substr(2);
          }

          if (this.emitFilter(file, undefined)) {
            continue;
          }

          // 最大数量限制
          if (this.maximum > 1 && addFiles.length + this.files.length >= this.maximum) {
            break;
          }

          addFiles.push(file);

          // 最大数量限制
          if (this.maximum === 1) {
            break;
          }
        }

        // 没有文件
        if (!addFiles.length) {
          return false;
        }

        // 如果是 1 清空
        if (this.maximum === 1) {
          this.clear();
        }

        // 添加进去 files
        var newFiles = void 0;
        if (index === true || index === 0) {
          newFiles = addFiles.concat(this.files);
        } else if (index) {
          newFiles = addFiles.concat([]);
          newFiles.splice(index, 0, addFiles);
        } else {
          newFiles = this.files.concat(addFiles);
        }

        this.files = newFiles;

        // 定位
        for (var _i = 0; _i < addFiles.length; _i++) {
          var _file2 = addFiles[_i];
          this.maps[_file2.id] = _file2;
        }

        // 事件
        this.emitInput();
        for (var _i2 = 0; _i2 < addFiles.length; _i2++) {
          this.emitFile(addFiles[_i2], undefined);
        }

        return isArray ? addFiles : addFiles[0];
      },


      // 添加表单文件
      addInputFile: function addInputFile(el) {
        var files = [];
        if (el.files) {
          for (var i = 0; i < el.files.length; i++) {
            var file = el.files[i];
            files.push({
              size: file.size,
              name: file.webkitRelativePath || file.relativePath || file.name,
              type: file.type,
              file: file,
              el: el
            });
          }
        } else {
          var names = el.value.replace(/\\/g, '/').split('/');
          files.push({
            name: names[names.length - 1],
            el: el
          });
        }
        return this.add(files);
      },


      // 添加 DataTransfer
      addDataTransfer: function addDataTransfer(dataTransfer) {
        var _this = this;

        var files = [];
        if (dataTransfer.items && dataTransfer.items.length) {
          var items = [];
          for (var i = 0; i < dataTransfer.items.length; i++) {
            var item = dataTransfer.items[i];
            if (item.getAsEntry) {
              item = item.getAsEntry() || item.getAsFile();
            } else if (item.webkitGetAsEntry) {
              item = item.webkitGetAsEntry() || item.getAsFile();
            } else {
              item = item.getAsFile();
            }
            if (item) {
              items.push(item);
            }
          }

          return new Promise(function (resolve, reject) {
            var forEach = function forEach(i) {
              var item = items[i];
              // 结束 文件数量大于 最大数量
              if (!item || _this.maximum > 0 && files.length >= _this.maximum) {
                return resolve(_this.add(files));
              }
              _this.getEntry(item).then(function (results) {
                files.push.apply(files, _toConsumableArray(results));
                forEach(i + 1);
              });
            };
            forEach(0);
          });
        }

        if (dataTransfer.files.length) {
          for (var _i3 = 0; _i3 < dataTransfer.files.length; _i3++) {
            files.push(dataTransfer.files[_i3]);
            if (this.maximum > 0 && files.length >= this.maximum) {
              break;
            }
          }
          return Promise.resolve(this.add(files));
        }

        return Promise.resolve([]);
      },


      // 获得 entry
      getEntry: function getEntry(entry) {
        var _this2 = this;

        var path = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : '';

        return new Promise(function (resolve, reject) {
          if (entry.isFile) {
            entry.file(function (file) {
              resolve([{
                size: file.size,
                name: path + file.name,
                type: file.type,
                file: file
              }]);
            });
          } else if (entry.isDirectory && _this2.dropDirectory) {
            var files = [];
            var dirReader = entry.createReader();
            var readEntries = function readEntries() {
              dirReader.readEntries(function (entries) {
                var forEach = function forEach(i) {
                  if (!entries[i] && i === 0 || _this2.maximum > 0 && files.length >= _this2.maximum) {
                    return resolve(files);
                  }
                  if (!entries[i]) {
                    return readEntries();
                  }
                  _this2.getEntry(entries[i], path + entry.name + '/').then(function (results) {
                    files.push.apply(files, _toConsumableArray(results));
                    forEach(i + 1);
                  });
                };
                forEach(0);
              });
            };
            readEntries();
          } else {
            resolve([]);
          }
        });
      },
      replace: function replace(id1, id2) {
        var file1 = this.get(id1);
        var file2 = this.get(id2);
        if (!file1 || !file2 || file1 === file2) {
          return false;
        }
        var files = this.files.concat([]);
        var index1 = files.indexOf(file1);
        var index2 = files.indexOf(file2);
        if (index1 === -1 || index2 === -1) {
          return false;
        }
        files[index1] = file2;
        files[index2] = file1;
        this.files = files;
        this.emitInput();
        return true;
      },


      // 移除
      remove: function remove(id) {
        var file = this.get(id);
        if (file) {
          if (this.emitFilter(undefined, file)) {
            return false;
          }
          var files = this.files.concat([]);
          var index = files.indexOf(file);
          if (index === -1) {
            console.error('remove', file);
            return false;
          }
          files.splice(index, 1);
          this.files = files;

          // 定位
          delete this.maps[file.id];

          // 事件
          this.emitInput();
          this.emitFile(undefined, file);
        }
        return file;
      },


      // 更新
      update: function update(id, data) {
        var file = this.get(id);
        if (file) {
          var newFile = _extends({}, file, data);
          // 停用必须加上错误
          if (file.fileObject && file.active && !newFile.active && !newFile.error && !newFile.success) {
            newFile.error = 'abort';
          }

          if (this.emitFilter(newFile, file)) {
            return false;
          }

          var files = this.files.concat([]);
          var index = files.indexOf(file);
          if (index === -1) {
            console.error('update', file);
            return false;
          }
          files.splice(index, 1, newFile);
          this.files = files;

          // 删除  旧定位 写入 新定位 （已便支持修改id)
          delete this.maps[file.id];
          this.maps[newFile.id] = newFile;

          // 事件
          this.emitInput();
          this.emitFile(newFile, file);
          return newFile;
        }
        return false;
      },


      // 预处理 事件 过滤器
      emitFilter: function emitFilter(newFile, oldFile) {
        var isPrevent = false;
        this.$emit('input-filter', newFile, oldFile, function () {
          isPrevent = true;
          return isPrevent;
        });
        return isPrevent;
      },


      // 处理后 事件 分发
      emitFile: function emitFile(newFile, oldFile) {
        this.$emit('input-file', newFile, oldFile);
        if (newFile && newFile.fileObject && newFile.active && (!oldFile || !oldFile.active)) {
          this.uploading++;
          // 激活
          this.$nextTick(function () {
            var _this3 = this;

            setTimeout(function () {
              _this3.upload(newFile).then(function () {
                // eslint-disable-next-line
                newFile = _this3.get(newFile);
                if (newFile && newFile.fileObject) {
                  _this3.update(newFile, {
                    active: false,
                    success: !newFile.error
                  });
                }
              }).catch(function (e) {
                _this3.update(newFile, {
                  active: false,
                  success: false,
                  error: e.code || e.error || e.message || e
                });
              });
            }, parseInt(Math.random() * 50 + 50, 10));
          });
        } else if ((!newFile || !newFile.fileObject || !newFile.active) && oldFile && oldFile.fileObject && oldFile.active) {
          // 停止
          this.uploading--;
        }

        // 自动延续激活
        if (this.active && (Boolean(newFile) !== Boolean(oldFile) || newFile.active !== oldFile.active)) {
          this.watchActive(true);
        }
      },
      emitInput: function emitInput() {
        this.$emit('input', this.files);
      },


      // 上传
      upload: function upload(id) {
        var file = this.get(id);

        // 被删除
        if (!file) {
          return Promise.reject('not_exists');
        }

        // 不是文件对象
        if (!file.fileObject) {
          return Promise.reject('file_object');
        }

        // 有错误直接响应
        if (file.error) {
          return Promise.reject(file.error);
        }

        // 已完成直接响应
        if (file.success) {
          return Promise.resolve(file);
        }

        // 后缀
        var extensions = this.extensions;
        if (extensions && (extensions.length || typeof extensions.length === 'undefined')) {
          if ((typeof extensions === 'undefined' ? 'undefined' : _typeof(extensions)) !== 'object' || !(extensions instanceof RegExp)) {
            if (typeof extensions === 'string') {
              extensions = extensions.split(',').map(function (value) {
                return value.trim();
              }).filter(function (value) {
                return value;
              });
            }
            extensions = new RegExp('\\.(' + extensions.join('|').replace(/\./g, '\\.') + ')$', 'i');
          }
          if (file.name.search(extensions) === -1) {
            return Promise.reject('extension');
          }
        }

        // 大小
        if (this.size > 0 && file.size >= 0 && file.size > this.size) {
          return Promise.reject('size');
        }

        if (this.customAction) {
          return this.customAction(file, this);
        }

        if (this.features.html5) {
          if (this.shouldUseChunkUpload(file)) {
            return this.uploadChunk(file);
          }
          if (file.putAction) {
            return this.uploadPut(file);
          }
          if (file.postAction) {
            return this.uploadHtml5(file);
          }
        }
        if (file.postAction) {
          return this.uploadHtml4(file);
        }
        return Promise.reject('No action configured');
      },


      /**
       * Whether this file should be uploaded using chunk upload or not
       *
       * @param Object file
       */
      shouldUseChunkUpload: function shouldUseChunkUpload(file) {
        return this.chunkEnabled && !!this.chunkOptions.handler && file.size > this.chunkOptions.minSize;
      },


      /**
       * Upload a file using Chunk method
       *
       * @param File file
       */
      uploadChunk: function uploadChunk(file) {
        var HandlerClass = this.chunkOptions.handler;
        file.chunk = new HandlerClass(file, this.chunkOptions);

        return file.chunk.upload();
      },
      uploadPut: function uploadPut(file) {
        var querys = [];
        var value = void 0;
        for (var key in file.data) {
          value = file.data[key];
          if (value !== null && value !== undefined) {
            querys.push(encodeURIComponent(key) + '=' + encodeURIComponent(value));
          }
        }
        var queryString = querys.length ? (file.putAction.indexOf('?') === -1 ? '?' : '&') + querys.join('&') : '';
        var xhr = new XMLHttpRequest();
        xhr.open('PUT', file.putAction + queryString);
        return this.uploadXhr(xhr, file, file.file);
      },
      uploadHtml5: function uploadHtml5(file) {
        var form = new window.FormData();
        var value = void 0;
        for (var key in file.data) {
          value = file.data[key];
          if (value && (typeof value === 'undefined' ? 'undefined' : _typeof(value)) === 'object' && typeof value.toString !== 'function') {
            if (value instanceof File) {
              form.append(key, value, value.name);
            } else {
              form.append(key, JSON.stringify(value));
            }
          } else if (value !== null && value !== undefined) {
            form.append(key, value);
          }
        }
        form.append(this.name, file.file, file.file.filename || file.name);
        var xhr = new XMLHttpRequest();
        xhr.open('POST', file.postAction);
        return this.uploadXhr(xhr, file, form);
      },
      uploadXhr: function uploadXhr(xhr, _file, body) {
        var _this4 = this;

        var file = _file;
        var speedTime = 0;
        var speedLoaded = 0;

        // 进度条
        xhr.upload.onprogress = function (e) {
          // 还未开始上传 已删除 未激活
          file = _this4.get(file);
          if (!e.lengthComputable || !file || !file.fileObject || !file.active) {
            return;
          }

          // 进度 速度 每秒更新一次
          var speedTime2 = Math.round(Date.now() / 1000);
          if (speedTime2 === speedTime) {
            return;
          }
          speedTime = speedTime2;

          file = _this4.update(file, {
            progress: (e.loaded / e.total * 100).toFixed(2),
            speed: e.loaded - speedLoaded
          });
          speedLoaded = e.loaded;
        };

        // 检查激活状态
        var interval = setInterval(function () {
          file = _this4.get(file);
          if (file && file.fileObject && !file.success && !file.error && file.active) {
            return;
          }

          if (interval) {
            clearInterval(interval);
            interval = false;
          }

          try {
            xhr.abort();
            xhr.timeout = 1;
          } catch (e) {}
        }, 100);

        return new Promise(function (resolve, reject) {
          var complete = void 0;
          var fn = function fn(e) {
            // 已经处理过了
            if (complete) {
              return;
            }
            complete = true;
            if (interval) {
              clearInterval(interval);
              interval = false;
            }

            file = _this4.get(file);

            // 不存在直接响应
            if (!file) {
              return reject('not_exists');
            }

            // 不是文件对象
            if (!file.fileObject) {
              return reject('file_object');
            }

            // 有错误自动响应
            if (file.error) {
              return reject(file.error);
            }

            // 未激活
            if (!file.active) {
              return reject('abort');
            }

            // 已完成 直接相应
            if (file.success) {
              return resolve(file);
            }

            var data = {};

            switch (e.type) {
              case 'timeout':
              case 'abort':
                data.error = e.type;
                break;
              case 'error':
                if (!xhr.status) {
                  data.error = 'network';
                } else if (xhr.status >= 500) {
                  data.error = 'server';
                } else if (xhr.status >= 400) {
                  data.error = 'denied';
                }
                break;
              default:
                if (xhr.status >= 500) {
                  data.error = 'server';
                } else if (xhr.status >= 400) {
                  data.error = 'denied';
                } else {
                  data.progress = '100.00';
                }
            }

            if (xhr.responseText) {
              var contentType = xhr.getResponseHeader('Content-Type');
              if (contentType && contentType.indexOf('/json') !== -1) {
                data.response = JSON.parse(xhr.responseText);
              } else {
                data.response = xhr.responseText;
              }
            }

            // 更新
            file = _this4.update(file, data);

            // 相应错误
            if (file.error) {
              return reject(file.error);
            }

            // 响应
            return resolve(file);
          };

          // 事件
          xhr.onload = fn;
          xhr.onerror = fn;
          xhr.onabort = fn;
          xhr.ontimeout = fn;

          // 超时
          if (file.timeout) {
            xhr.timeout = file.timeout;
          }

          // headers
          for (var key in file.headers) {
            xhr.setRequestHeader(key, file.headers[key]);
          }

          // 更新 xhr
          file = _this4.update(file, { xhr: xhr });

          // 开始上传
          xhr.send(body);
        });
      },
      uploadHtml4: function uploadHtml4(_file) {
        var _this5 = this;

        var file = _file;
        var onKeydown = function onKeydown(e) {
          if (e.keyCode === 27) {
            e.preventDefault();
          }
        };

        var iframe = document.createElement('iframe');
        iframe.id = 'upload-iframe-' + file.id;
        iframe.name = 'upload-iframe-' + file.id;
        iframe.src = 'about:blank';
        iframe.setAttribute('style', 'width:1px;height:1px;top:-999em;position:absolute; margin-top:-999em;');

        var form = document.createElement('form');

        form.action = file.postAction;

        form.name = 'upload-form-' + file.id;

        form.setAttribute('method', 'POST');
        form.setAttribute('target', 'upload-iframe-' + file.id);
        form.setAttribute('enctype', 'multipart/form-data');

        var value = void 0;
        var input = void 0;
        for (var key in file.data) {
          value = file.data[key];
          if (value && (typeof value === 'undefined' ? 'undefined' : _typeof(value)) === 'object' && typeof value.toString !== 'function') {
            value = JSON.stringify(value);
          }
          if (value !== null && value !== undefined) {
            input = document.createElement('input');
            input.type = 'hidden';
            input.name = key;
            input.value = value;
            form.appendChild(input);
          }
        }
        form.appendChild(file.el);

        document.body.appendChild(iframe).appendChild(form);

        var getResponseData = function getResponseData() {
          var doc = void 0;
          try {
            if (iframe.contentWindow) {
              doc = iframe.contentWindow.document;
            }
          } catch (err) {}
          if (!doc) {
            try {
              doc = iframe.contentDocument ? iframe.contentDocument : iframe.document;
            } catch (err) {
              doc = iframe.document;
            }
          }
          if (doc && doc.body) {
            return doc.body.innerHTML;
          }
          return null;
        };

        return new Promise(function (resolve, reject) {
          setTimeout(function () {
            file = _this5.update(file, { iframe: iframe });

            // 不存在
            if (!file) {
              return reject('not_exists');
            }

            // 定时检查
            var interval = setInterval(function () {
              file = _this5.get(file);
              if (file && file.fileObject && !file.success && !file.error && file.active) {
                return;
              }

              if (interval) {
                clearInterval(interval);
                interval = false;
              }

              iframe.onabort({ type: file ? 'abort' : 'not_exists' });
            }, 100);

            var complete = void 0;
            var fn = function fn(e) {
              // 已经处理过了
              if (complete) {
                return;
              }
              complete = true;

              if (interval) {
                clearInterval(interval);
                interval = false;
              }

              // 关闭 esc 事件
              document.body.removeEventListener('keydown', onKeydown);

              file = _this5.get(file);

              // 不存在直接响应
              if (!file) {
                return reject('not_exists');
              }

              // 不是文件对象
              if (!file.fileObject) {
                return reject('file_object');
              }

              // 有错误自动响应
              if (file.error) {
                return reject(file.error);
              }

              // 未激活
              if (!file.active) {
                return reject('abort');
              }

              // 已完成 直接相应
              if (file.success) {
                return resolve(file);
              }

              var response = getResponseData();
              var data = {};
              switch (e.type) {
                case 'abort':
                  data.error = 'abort';
                  break;
                case 'error':
                  if (file.error) {
                    data.error = file.error;
                  } else if (response === null) {
                    data.error = 'network';
                  } else {
                    data.error = 'denied';
                  }
                  break;
                default:
                  if (file.error) {
                    data.error = file.error;
                  } else if (data === null) {
                    data.error = 'network';
                  } else {
                    data.progress = '100.00';
                  }
              }

              if (response !== null) {
                if (response && response.substr(0, 1) === '{' && response.substr(response.length - 1, 1) === '}') {
                  try {
                    response = JSON.parse(response);
                  } catch (err) {}
                }
                data.response = response;
              }

              // 更新
              file = _this5.update(file, data);

              if (file.error) {
                return reject(file.error);
              }

              // 响应
              return resolve(file);
            };

            // 添加事件
            iframe.onload = fn;
            iframe.onerror = fn;
            iframe.onabort = fn;

            // 禁止 esc 键
            document.body.addEventListener('keydown', onKeydown);

            // 提交
            form.submit();
          }, 50);
        }).then(function (res) {
          iframe.parentNode && iframe.parentNode.removeChild(iframe);
          return res;
        }).catch(function (res) {
          iframe.parentNode && iframe.parentNode.removeChild(iframe);
          return res;
        });
      },
      watchActive: function watchActive(active) {
        var file = void 0;
        var index = 0;
        while (file = this.files[index]) {
          index++;
          if (!file.fileObject) ; else if (active && !this.destroy) {
            if (this.uploading >= this.thread || this.uploading && !this.features.html5) {
              break;
            }
            if (!file.active && !file.error && !file.success) {
              this.update(file, { active: true });
            }
          } else {
            if (file.active) {
              this.update(file, { active: false });
            }
          }
        }
        if (this.uploading === 0) {
          this.active = false;
        }
      },
      watchDrop: function watchDrop(_el) {
        var el = _el;
        if (!this.features.drop) {
          return;
        }

        // 移除挂载
        if (this.dropElement) {
          try {
            document.removeEventListener('dragenter', this.onDragenter, false);
            document.removeEventListener('dragleave', this.onDragleave, false);
            document.removeEventListener('drop', this.onDocumentDrop, false);
            this.dropElement.removeEventListener('dragover', this.onDragover, false);
            this.dropElement.removeEventListener('drop', this.onDrop, false);
          } catch (e) {}
        }

        if (!el) {
          el = false;
        } else if (typeof el === 'string') {
          el = document.querySelector(el) || this.$root.$el.querySelector(el);
        } else if (el === true) {
          el = this.$parent.$el;
        }

        this.dropElement = el;

        if (this.dropElement) {
          document.addEventListener('dragenter', this.onDragenter, false);
          document.addEventListener('dragleave', this.onDragleave, false);
          document.addEventListener('drop', this.onDocumentDrop, false);
          this.dropElement.addEventListener('dragover', this.onDragover, false);
          this.dropElement.addEventListener('drop', this.onDrop, false);
        }
      },
      onDragenter: function onDragenter(e) {
        e.preventDefault();
        if (!this.dropActive) {
          this.dropActive = true;
        }
      },
      onDragleave: function onDragleave(e) {
        e.preventDefault();
        if (e.target.nodeName === 'HTML' || e.target === e.explicitOriginalTarget || e.screenX === 0 && e.screenY === 0 && !e.fromElement && e.offsetX <= 0) {
          this.dropActive = false;
        }
      },
      onDragover: function onDragover(e) {
        e.preventDefault();
      },
      onDocumentDrop: function onDocumentDrop() {
        this.dropActive = false;
      },
      onDrop: function onDrop(e) {
        e.preventDefault();
        this.addDataTransfer(e.dataTransfer);
      }
    }
  };

  var __vue_script__$1 = script$1;
  /* template */
  var __vue_render__$1 = function __vue_render__() {
    var _vm = this;var _h = _vm.$createElement;var _c = _vm._self._c || _h;return _c('label', { class: _vm.className }, [_vm._t("default"), _vm._ssrNode(" "), _c('input-file')], 2);
  };
  var __vue_staticRenderFns__$1 = [];

  var __vue_template__$1 = typeof __vue_render__$1 !== 'undefined' ? { render: __vue_render__$1, staticRenderFns: __vue_staticRenderFns__$1 } : {};
  /* style */
  var __vue_inject_styles__$1 = undefined;
  /* scoped */
  var __vue_scope_id__$1 = undefined;
  /* module identifier */
  var __vue_module_identifier__$1 = "data-v-00c97c04";
  /* functional template */
  var __vue_is_functional_template__$1 = false;
  /* component normalizer */
  function __vue_normalize__$1(template, style, script, scope, functional, moduleIdentifier, createInjector, createInjectorSSR) {
    var component = script || {};

    if (!component.render) {
      component.render = template.render;
      component.staticRenderFns = template.staticRenderFns;
      component._compiled = true;

      if (functional) component.functional = true;
    }

    component._scopeId = scope;

    return component;
  }
  /* style inject */

  /* style inject SSR */
  function __vue_create_injector_ssr__$1(context) {
    if (!context && typeof __VUE_SSR_CONTEXT__ !== 'undefined') {
      context = __VUE_SSR_CONTEXT__;
    }

    if (!context) return function () {};

    if (!context.hasOwnProperty('styles')) {
      Object.defineProperty(context, 'styles', {
        enumerable: true,
        get: function get() {
          return context._styles;
        }
      });
      context._renderStyles = renderStyles;
    }

    function renderStyles(styles) {
      var css = '';
      var _iteratorNormalCompletion = true;
      var _didIteratorError = false;
      var _iteratorError = undefined;

      try {
        for (var _iterator = styles[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
          var _ref = _step.value;
          var ids = _ref.ids,
              media = _ref.media,
              parts = _ref.parts;

          css += '<style data-vue-ssr-id="' + ids.join(' ') + '"' + (media ? ' media="' + media + '"' : '') + '>' + parts.join('\n') + '</style>';
        }
      } catch (err) {
        _didIteratorError = true;
        _iteratorError = err;
      } finally {
        try {
          if (!_iteratorNormalCompletion && _iterator.return) {
            _iterator.return();
          }
        } finally {
          if (_didIteratorError) {
            throw _iteratorError;
          }
        }
      }

      return css;
    }

    return function addStyle(id, css) {
      var group = css.media || 'default';
      var style = context._styles[group] || (context._styles[group] = { ids: [], parts: [] });

      if (!style.ids.includes(id)) {
        style.media = css.media;
        style.ids.push(id);
        var code = css.source;
        style.parts.push(code);
      }
    };
  }

  var FileUpload = __vue_normalize__$1(__vue_template__$1, __vue_inject_styles__$1, typeof __vue_script__$1 === 'undefined' ? {} : __vue_script__$1, __vue_scope_id__$1, __vue_is_functional_template__$1, __vue_module_identifier__$1, typeof __vue_create_injector__ !== 'undefined' ? __vue_create_injector__ : function () {}, typeof __vue_create_injector_ssr__$1 !== 'undefined' ? __vue_create_injector_ssr__$1 : function () {});

  var FileUpload$1 = /*#__PURE__*/Object.freeze({
    default: FileUpload
  });

  var require$$0 = ( FileUpload$1 && FileUpload ) || FileUpload$1;

  var src = require$$0;

  return src;

})));