hemall.terabimsoft.com.cn/plugins/shop_server/.nuxt/dist/server/components/default-image-viewer.js

exports.ids = [6];
exports.modules = {

/***/ 156:
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
// ESM COMPAT FLAG
__webpack_require__.r(__webpack_exports__);

// CONCATENATED MODULE: ./node_modules/_vue-loader@15.9.8@vue-loader/lib/loaders/templateLoader.js??vue-loader-options!./node_modules/_@nuxt_components@2.2.1@@nuxt/components/dist/loader.js??ref--0-0!./node_modules/_vue-loader@15.9.8@vue-loader/lib??vue-loader-options!./components/default/image-viewer.vue?vue&type=template&id=35230f64&
var render = function () {var _vm=this;var _h=_vm.$createElement;var _c=_vm._self._c||_h;return _c('transition',{attrs:{"name":"viewer-fade"}},[_c('div',{ref:"el-image-viewer__wrapper",staticClass:"el-image-viewer__wrapper",style:({ 'z-index': _vm.zIndex }),attrs:{"tabindex":"-1"}},[_c('div',{staticClass:"el-image-viewer__mask",on:{"click":_vm.hide}}),_vm._v(" "),_c('span',{staticClass:"el-image-viewer__btn el-image-viewer__close",on:{"click":function($event){$event.stopPropagation();return _vm.hide.apply(null, arguments)}}},[_c('i',{staticClass:"el-icon-circle-close",staticStyle:{"color":"white"}})]),_vm._v(" "),(!_vm.isSingle)?[_c('span',{staticClass:"el-image-viewer__btn el-image-viewer__prev",class:{ 'is-disabled': !_vm.infinite && _vm.isFirst },on:{"click":function($event){$event.stopPropagation();return _vm.prev.apply(null, arguments)}}},[_c('i',{staticClass:"el-icon-arrow-left"})]),_vm._v(" "),_c('span',{staticClass:"el-image-viewer__btn el-image-viewer__next",class:{ 'is-disabled': !_vm.infinite && _vm.isLast },on:{"click":function($event){$event.stopPropagation();return _vm.next.apply(null, arguments)}}},[_c('i',{staticClass:"el-icon-arrow-right"})])]:_vm._e(),_vm._v(" "),_c('div',{staticClass:"el-image-viewer__btn el-image-viewer__actions"},[_c('div',{staticClass:"el-image-viewer__actions__inner"},[_c('i',{staticClass:"el-icon-zoom-out",on:{"click":function($event){$event.stopPropagation();return _vm.handleActions('zoomOut')}}}),_vm._v(" "),_c('i',{staticClass:"el-icon-zoom-in",on:{"click":function($event){$event.stopPropagation();return _vm.handleActions('zoomIn')}}}),_vm._v(" "),_c('i',{staticClass:"el-image-viewer__actions__divider"}),_vm._v(" "),_c('i',{class:_vm.mode.icon,on:{"click":function($event){$event.stopPropagation();return _vm.toggleMode.apply(null, arguments)}}}),_vm._v(" "),_c('i',{staticClass:"el-image-viewer__actions__divider"}),_vm._v(" "),_c('i',{staticClass:"el-icon-refresh-left",on:{"click":function($event){$event.stopPropagation();return _vm.handleActions('anticlocelise')}}}),_vm._v(" "),_c('i',{staticClass:"el-icon-refresh-right",on:{"click":function($event){$event.stopPropagation();return _vm.handleActions('clocelise')}}})])]),_vm._v(" "),_c('div',{staticClass:"el-image-viewer__canvas",on:{"click":_vm.hide}},_vm._l((_vm.urlList),function(url,i){return (i === _vm.index)?_c('img',{key:url,ref:"img",refInFor:true,staticClass:"el-image-viewer__img",style:(_vm.imgStyle),attrs:{"src":_vm.currentImg},on:{"load":_vm.handleImgLoad,"error":_vm.handleImgError,"mousedown":_vm.handleMouseDown}}):_vm._e()}),0)],2)])}
var staticRenderFns = []


// CONCATENATED MODULE: ./components/default/image-viewer.vue?vue&type=template&id=35230f64&

// EXTERNAL MODULE: ./node_modules/_element-ui@2.14.1@element-ui/src/utils/dom.js
var dom = __webpack_require__(159);

// EXTERNAL MODULE: ./node_modules/_element-ui@2.14.1@element-ui/src/utils/util.js + 1 modules
var util = __webpack_require__(160);

// CONCATENATED MODULE: ./node_modules/_babel-loader@8.2.3@babel-loader/lib??ref--2-0!./node_modules/_@nuxt_components@2.2.1@@nuxt/components/dist/loader.js??ref--0-0!./node_modules/_vue-loader@15.9.8@vue-loader/lib??vue-loader-options!./components/default/image-viewer.vue?vue&type=script&lang=js&
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const Mode = {
  CONTAIN: {
    name: 'contain',
    icon: 'el-icon-full-screen'
  },
  ORIGINAL: {
    name: 'original',
    icon: 'el-icon-c-scale-to-original'
  }
};
const mousewheelEventName = Object(util["a" /* isFirefox */])() ? 'DOMMouseScroll' : 'mousewheel';
/* harmony default export */ var image_viewervue_type_script_lang_js_ = ({
  name: 'elImageViewer',
  props: {
    urlList: {
      type: Array,
      default: () => []
    },
    zIndex: {
      type: Number,
      default: 2000
    },
    onSwitch: {
      type: Function,
      default: () => {}
    },
    onClose: {
      type: Function,
      default: () => {}
    },
    initialIndex: {
      type: Number,
      default: 0
    }
  },

  data() {
    return {
      index: this.initialIndex,
      isShow: false,
      infinite: true,
      loading: false,
      mode: Mode.CONTAIN,
      transform: {
        scale: 1,
        deg: 0,
        offsetX: 0,
        offsetY: 0,
        enableTransition: false
      }
    };
  },

  computed: {
    isSingle() {
      return this.urlList.length <= 1;
    },

    isFirst() {
      return this.index === 0;
    },

    isLast() {
      return this.index === this.urlList.length - 1;
    },

    currentImg() {
      return this.urlList[this.index];
    },

    imgStyle() {
      const {
        scale,
        deg,
        offsetX,
        offsetY,
        enableTransition
      } = this.transform;
      const style = {
        transform: `scale(${scale}) rotate(${deg}deg)`,
        transition: enableTransition ? 'transform .3s' : '',
        'margin-left': `${offsetX}px`,
        'margin-top': `${offsetY}px`
      };

      if (this.mode === Mode.CONTAIN) {
        style.maxWidth = style.maxHeight = '100%';
      }

      return style;
    }

  },
  watch: {
    index: {
      handler: function (val) {
        this.reset();
        this.onSwitch(val);
      }
    },

    currentImg(val) {
      this.$nextTick(_ => {
        const $img = this.$refs.img[0];

        if (!$img.complete) {
          this.loading = true;
        }
      });
    }

  },
  methods: {
    hide() {
      this.deviceSupportUninstall(); // this.onClose();

      this.$emit('onClose');
    },

    deviceSupportInstall() {
      this._keyDownHandler = Object(util["b" /* rafThrottle */])(e => {
        const keyCode = e.keyCode;

        switch (keyCode) {
          // ESC
          case 27:
            this.hide();
            break;
          // SPACE

          case 32:
            this.toggleMode();
            break;
          // LEFT_ARROW

          case 37:
            this.prev();
            break;
          // UP_ARROW

          case 38:
            this.handleActions('zoomIn');
            break;
          // RIGHT_ARROW

          case 39:
            this.next();
            break;
          // DOWN_ARROW

          case 40:
            this.handleActions('zoomOut');
            break;
        }
      });
      this._mouseWheelHandler = Object(util["b" /* rafThrottle */])(e => {
        const delta = e.wheelDelta ? e.wheelDelta : -e.detail;

        if (delta > 0) {
          this.handleActions('zoomIn', {
            zoomRate: 0.015,
            enableTransition: false
          });
        } else {
          this.handleActions('zoomOut', {
            zoomRate: 0.015,
            enableTransition: false
          });
        }
      });
      Object(dom["b" /* on */])(document, 'keydown', this._keyDownHandler);
      Object(dom["b" /* on */])(document, mousewheelEventName, this._mouseWheelHandler);
    },

    deviceSupportUninstall() {
      Object(dom["a" /* off */])(document, 'keydown', this._keyDownHandler);
      Object(dom["a" /* off */])(document, mousewheelEventName, this._mouseWheelHandler);
      this._keyDownHandler = null;
      this._mouseWheelHandler = null;
    },

    handleImgLoad(e) {
      this.loading = false;
    },

    handleImgError(e) {
      this.loading = false;
      e.target.alt = '加载失败';
    },

    handleMouseDown(e) {
      if (this.loading || e.button !== 0) return;
      const {
        offsetX,
        offsetY
      } = this.transform;
      const startX = e.pageX;
      const startY = e.pageY;
      this._dragHandler = Object(util["b" /* rafThrottle */])(ev => {
        this.transform.offsetX = offsetX + ev.pageX - startX;
        this.transform.offsetY = offsetY + ev.pageY - startY;
      });
      Object(dom["b" /* on */])(document, 'mousemove', this._dragHandler);
      Object(dom["b" /* on */])(document, 'mouseup', ev => {
        Object(dom["a" /* off */])(document, 'mousemove', this._dragHandler);
      });
      e.preventDefault();
    },

    reset() {
      this.transform = {
        scale: 1,
        deg: 0,
        offsetX: 0,
        offsetY: 0,
        enableTransition: false
      };
    },

    toggleMode() {
      if (this.loading) return;
      const modeNames = Object.keys(Mode);
      const modeValues = Object.values(Mode);
      const index = modeValues.indexOf(this.mode);
      const nextIndex = (index + 1) % modeNames.length;
      this.mode = Mode[modeNames[nextIndex]];
      this.reset();
    },

    prev() {
      if (this.isFirst && !this.infinite) return;
      const len = this.urlList.length;
      this.index = (this.index - 1 + len) % len;
    },

    next() {
      if (this.isLast && !this.infinite) return;
      const len = this.urlList.length;
      this.index = (this.index + 1) % len;
    },

    handleActions(action, options = {}) {
      if (this.loading) return;
      const {
        zoomRate,
        rotateDeg,
        enableTransition
      } = {
        zoomRate: 0.2,
        rotateDeg: 90,
        enableTransition: true,
        ...options
      };
      const {
        transform
      } = this;

      switch (action) {
        case 'zoomOut':
          if (transform.scale > 0.2) {
            transform.scale = parseFloat((transform.scale - zoomRate).toFixed(3));
          }

          break;

        case 'zoomIn':
          transform.scale = parseFloat((transform.scale + zoomRate).toFixed(3));
          break;

        case 'clocelise':
          transform.deg += rotateDeg;
          break;

        case 'anticlocelise':
          transform.deg -= rotateDeg;
          break;
      }

      transform.enableTransition = enableTransition;
    }

  },

  mounted() {
    this.deviceSupportInstall(); // add tabindex then wrapper can be focusable via Javascript
    // focus wrapper so arrow key can't cause inner scroll behavior underneath

    this.$refs['el-image-viewer__wrapper'].focus();
  }

});
// CONCATENATED MODULE: ./components/default/image-viewer.vue?vue&type=script&lang=js&
 /* harmony default export */ var default_image_viewervue_type_script_lang_js_ = (image_viewervue_type_script_lang_js_); 
// EXTERNAL MODULE: ./node_modules/_vue-loader@15.9.8@vue-loader/lib/runtime/componentNormalizer.js
var componentNormalizer = __webpack_require__(2);

// CONCATENATED MODULE: ./components/default/image-viewer.vue





/* normalize component */

var component = Object(componentNormalizer["a" /* default */])(
  default_image_viewervue_type_script_lang_js_,
  render,
  staticRenderFns,
  false,
  null,
  null,
  "ef95725e"
  
)

/* harmony default export */ var image_viewer = __webpack_exports__["default"] = (component.exports);

/***/ }),

/***/ 159:
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "b", function() { return on; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "a", function() { return off; });
/* unused harmony export once */
/* unused harmony export hasClass */
/* unused harmony export addClass */
/* unused harmony export removeClass */
/* unused harmony export getStyle */
/* unused harmony export setStyle */
/* unused harmony export isScroll */
/* unused harmony export getScrollContainer */
/* unused harmony export isInContainer */
/* harmony import */ var vue__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(0);
/* harmony import */ var vue__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(vue__WEBPACK_IMPORTED_MODULE_0__);
/* istanbul ignore next */



const isServer = vue__WEBPACK_IMPORTED_MODULE_0___default.a.prototype.$isServer;
const SPECIAL_CHARS_REGEXP = /([\:\-\_]+(.))/g;
const MOZ_HACK_REGEXP = /^moz([A-Z])/;
const ieVersion = isServer ? 0 : Number(document.documentMode);

/* istanbul ignore next */
const trim = function(string) {
  return (string || '').replace(/^[\s\uFEFF]+|[\s\uFEFF]+$/g, '');
};
/* istanbul ignore next */
const camelCase = function(name) {
  return name.replace(SPECIAL_CHARS_REGEXP, function(_, separator, letter, offset) {
    return offset ? letter.toUpperCase() : letter;
  }).replace(MOZ_HACK_REGEXP, 'Moz$1');
};

/* istanbul ignore next */
const on = (function() {
  if (!isServer && document.addEventListener) {
    return function(element, event, handler) {
      if (element && event && handler) {
        element.addEventListener(event, handler, false);
      }
    };
  } else {
    return function(element, event, handler) {
      if (element && event && handler) {
        element.attachEvent('on' + event, handler);
      }
    };
  }
})();

/* istanbul ignore next */
const off = (function() {
  if (!isServer && document.removeEventListener) {
    return function(element, event, handler) {
      if (element && event) {
        element.removeEventListener(event, handler, false);
      }
    };
  } else {
    return function(element, event, handler) {
      if (element && event) {
        element.detachEvent('on' + event, handler);
      }
    };
  }
})();

/* istanbul ignore next */
const once = function(el, event, fn) {
  var listener = function() {
    if (fn) {
      fn.apply(this, arguments);
    }
    off(el, event, listener);
  };
  on(el, event, listener);
};

/* istanbul ignore next */
function hasClass(el, cls) {
  if (!el || !cls) return false;
  if (cls.indexOf(' ') !== -1) throw new Error('className should not contain space.');
  if (el.classList) {
    return el.classList.contains(cls);
  } else {
    return (' ' + el.className + ' ').indexOf(' ' + cls + ' ') > -1;
  }
};

/* istanbul ignore next */
function addClass(el, cls) {
  if (!el) return;
  var curClass = el.className;
  var classes = (cls || '').split(' ');

  for (var i = 0, j = classes.length; i < j; i++) {
    var clsName = classes[i];
    if (!clsName) continue;

    if (el.classList) {
      el.classList.add(clsName);
    } else if (!hasClass(el, clsName)) {
      curClass += ' ' + clsName;
    }
  }
  if (!el.classList) {
    el.className = curClass;
  }
};

/* istanbul ignore next */
function removeClass(el, cls) {
  if (!el || !cls) return;
  var classes = cls.split(' ');
  var curClass = ' ' + el.className + ' ';

  for (var i = 0, j = classes.length; i < j; i++) {
    var clsName = classes[i];
    if (!clsName) continue;

    if (el.classList) {
      el.classList.remove(clsName);
    } else if (hasClass(el, clsName)) {
      curClass = curClass.replace(' ' + clsName + ' ', ' ');
    }
  }
  if (!el.classList) {
    el.className = trim(curClass);
  }
};

/* istanbul ignore next */
const getStyle = ieVersion < 9 ? function(element, styleName) {
  if (isServer) return;
  if (!element || !styleName) return null;
  styleName = camelCase(styleName);
  if (styleName === 'float') {
    styleName = 'styleFloat';
  }
  try {
    switch (styleName) {
      case 'opacity':
        try {
          return element.filters.item('alpha').opacity / 100;
        } catch (e) {
          return 1.0;
        }
      default:
        return (element.style[styleName] || element.currentStyle ? element.currentStyle[styleName] : null);
    }
  } catch (e) {
    return element.style[styleName];
  }
} : function(element, styleName) {
  if (isServer) return;
  if (!element || !styleName) return null;
  styleName = camelCase(styleName);
  if (styleName === 'float') {
    styleName = 'cssFloat';
  }
  try {
    var computed = document.defaultView.getComputedStyle(element, '');
    return element.style[styleName] || computed ? computed[styleName] : null;
  } catch (e) {
    return element.style[styleName];
  }
};

/* istanbul ignore next */
function setStyle(element, styleName, value) {
  if (!element || !styleName) return;

  if (typeof styleName === 'object') {
    for (var prop in styleName) {
      if (styleName.hasOwnProperty(prop)) {
        setStyle(element, prop, styleName[prop]);
      }
    }
  } else {
    styleName = camelCase(styleName);
    if (styleName === 'opacity' && ieVersion < 9) {
      element.style.filter = isNaN(value) ? '' : 'alpha(opacity=' + value * 100 + ')';
    } else {
      element.style[styleName] = value;
    }
  }
};

const isScroll = (el, vertical) => {
  if (isServer) return;

  const determinedDirection = vertical !== null || vertical !== undefined;
  const overflow = determinedDirection
    ? vertical
      ? getStyle(el, 'overflow-y')
      : getStyle(el, 'overflow-x')
    : getStyle(el, 'overflow');

  return overflow.match(/(scroll|auto)/);
};

const getScrollContainer = (el, vertical) => {
  if (isServer) return;

  let parent = el;
  while (parent) {
    if ([window, document, document.documentElement].includes(parent)) {
      return window;
    }
    if (isScroll(parent, vertical)) {
      return parent;
    }
    parent = parent.parentNode;
  }

  return parent;
};

const isInContainer = (el, container) => {
  if (isServer || !el || !container) return false;

  const elRect = el.getBoundingClientRect();
  let containerRect;

  if ([window, document, document.documentElement, null, undefined].includes(container)) {
    containerRect = {
      top: 0,
      right: window.innerWidth,
      bottom: window.innerHeight,
      left: 0
    };
  } else {
    containerRect = container.getBoundingClientRect();
  }

  return elRect.top < containerRect.bottom &&
    elRect.bottom > containerRect.top &&
    elRect.right > containerRect.left &&
    elRect.left < containerRect.right;
};


/***/ }),

/***/ 160:
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";

// EXPORTS
__webpack_require__.d(__webpack_exports__, "a", function() { return /* binding */ isFirefox; });
__webpack_require__.d(__webpack_exports__, "b", function() { return /* binding */ rafThrottle; });

// UNUSED EXPORTS: noop, hasOwn, toObject, getValueByPath, getPropByPath, generateId, valueEquals, escapeRegexpString, arrayFindIndex, arrayFind, coerceTruthyValueToArray, isIE, isEdge, autoprefixer, kebabCase, capitalize, looseEqual, arrayEquals, isEqual, isEmpty, objToArray

// EXTERNAL MODULE: external "vue"
var external_vue_ = __webpack_require__(0);
var external_vue_default = /*#__PURE__*/__webpack_require__.n(external_vue_);

// CONCATENATED MODULE: ./node_modules/_element-ui@2.14.1@element-ui/src/utils/types.js
function isString(obj) {
  return Object.prototype.toString.call(obj) === '[object String]';
}

function isObject(obj) {
  return Object.prototype.toString.call(obj) === '[object Object]';
}

function isHtmlElement(node) {
  return node && node.nodeType === Node.ELEMENT_NODE;
}

const isFunction = (functionToCheck) => {
  var getType = {};
  return functionToCheck && getType.toString.call(functionToCheck) === '[object Function]';
};

const isUndefined = (val)=> {
  return val === void 0;
};

const isDefined = (val) => {
  return val !== undefined && val !== null;
};

// CONCATENATED MODULE: ./node_modules/_element-ui@2.14.1@element-ui/src/utils/util.js



const util_hasOwnProperty = Object.prototype.hasOwnProperty;

function noop() {};

function hasOwn(obj, key) {
  return util_hasOwnProperty.call(obj, key);
};

function extend(to, _from) {
  for (let key in _from) {
    to[key] = _from[key];
  }
  return to;
};

function toObject(arr) {
  var res = {};
  for (let i = 0; i < arr.length; i++) {
    if (arr[i]) {
      extend(res, arr[i]);
    }
  }
  return res;
};

const getValueByPath = function(object, prop) {
  prop = prop || '';
  const paths = prop.split('.');
  let current = object;
  let result = null;
  for (let i = 0, j = paths.length; i < j; i++) {
    const path = paths[i];
    if (!current) break;

    if (i === j - 1) {
      result = current[path];
      break;
    }
    current = current[path];
  }
  return result;
};

function getPropByPath(obj, path, strict) {
  let tempObj = obj;
  path = path.replace(/\[(\w+)\]/g, '.$1');
  path = path.replace(/^\./, '');

  let keyArr = path.split('.');
  let i = 0;
  for (let len = keyArr.length; i < len - 1; ++i) {
    if (!tempObj && !strict) break;
    let key = keyArr[i];
    if (key in tempObj) {
      tempObj = tempObj[key];
    } else {
      if (strict) {
        throw new Error('please transfer a valid prop path to form item!');
      }
      break;
    }
  }
  return {
    o: tempObj,
    k: keyArr[i],
    v: tempObj ? tempObj[keyArr[i]] : null
  };
};

const generateId = function() {
  return Math.floor(Math.random() * 10000);
};

const valueEquals = (a, b) => {
  // see: https://stackoverflow.com/questions/3115982/how-to-check-if-two-arrays-are-equal-with-javascript
  if (a === b) return true;
  if (!(a instanceof Array)) return false;
  if (!(b instanceof Array)) return false;
  if (a.length !== b.length) return false;
  for (let i = 0; i !== a.length; ++i) {
    if (a[i] !== b[i]) return false;
  }
  return true;
};

const escapeRegexpString = (value = '') => String(value).replace(/[|\\{}()[\]^$+*?.]/g, '\\$&');

// TODO: use native Array.find, Array.findIndex when IE support is dropped
const arrayFindIndex = function(arr, pred) {
  for (let i = 0; i !== arr.length; ++i) {
    if (pred(arr[i])) {
      return i;
    }
  }
  return -1;
};

const arrayFind = function(arr, pred) {
  const idx = arrayFindIndex(arr, pred);
  return idx !== -1 ? arr[idx] : undefined;
};

// coerce truthy value to array
const coerceTruthyValueToArray = function(val) {
  if (Array.isArray(val)) {
    return val;
  } else if (val) {
    return [val];
  } else {
    return [];
  }
};

const isIE = function() {
  return !external_vue_default.a.prototype.$isServer && !isNaN(Number(document.documentMode));
};

const isEdge = function() {
  return !external_vue_default.a.prototype.$isServer && navigator.userAgent.indexOf('Edge') > -1;
};

const isFirefox = function() {
  return !external_vue_default.a.prototype.$isServer && !!window.navigator.userAgent.match(/firefox/i);
};

const autoprefixer = function(style) {
  if (typeof style !== 'object') return style;
  const rules = ['transform', 'transition', 'animation'];
  const prefixes = ['ms-', 'webkit-'];
  rules.forEach(rule => {
    const value = style[rule];
    if (rule && value) {
      prefixes.forEach(prefix => {
        style[prefix + rule] = value;
      });
    }
  });
  return style;
};

const kebabCase = function(str) {
  const hyphenateRE = /([^-])([A-Z])/g;
  return str
    .replace(hyphenateRE, '$1-$2')
    .replace(hyphenateRE, '$1-$2')
    .toLowerCase();
};

const capitalize = function(str) {
  if (!isString(str)) return str;
  return str.charAt(0).toUpperCase() + str.slice(1);
};

const looseEqual = function(a, b) {
  const isObjectA = isObject(a);
  const isObjectB = isObject(b);
  if (isObjectA && isObjectB) {
    return JSON.stringify(a) === JSON.stringify(b);
  } else if (!isObjectA && !isObjectB) {
    return String(a) === String(b);
  } else {
    return false;
  }
};

const arrayEquals = function(arrayA, arrayB) {
  arrayA = arrayA || [];
  arrayB = arrayB || [];

  if (arrayA.length !== arrayB.length) {
    return false;
  }

  for (let i = 0; i < arrayA.length; i++) {
    if (!looseEqual(arrayA[i], arrayB[i])) {
      return false;
    }
  }

  return true;
};

const isEqual = function(value1, value2) {
  if (Array.isArray(value1) && Array.isArray(value2)) {
    return arrayEquals(value1, value2);
  }
  return looseEqual(value1, value2);
};

const isEmpty = function(val) {
  // null or undefined
  if (val == null) return true;

  if (typeof val === 'boolean') return false;

  if (typeof val === 'number') return !val;

  if (val instanceof Error) return val.message === '';

  switch (Object.prototype.toString.call(val)) {
    // String or Array
    case '[object String]':
    case '[object Array]':
      return !val.length;

    // Map or Set or File
    case '[object File]':
    case '[object Map]':
    case '[object Set]': {
      return !val.size;
    }
    // Plain Object
    case '[object Object]': {
      return !Object.keys(val).length;
    }
  }

  return false;
};

function rafThrottle(fn) {
  let locked = false;
  return function(...args) {
    if (locked) return;
    locked = true;
    window.requestAnimationFrame(_ => {
      fn.apply(this, args);
      locked = false;
    });
  };
}

function objToArray(obj) {
  if (Array.isArray(obj)) {
    return obj;
  }
  return isEmpty(obj) ? [] : [obj];
}


/***/ })

};;
//# sourceMappingURL=default-image-viewer.js.map