zyAdmin/node_modules/v-viewer/dist/index.es.js

import Viewer from "viewerjs";
export { default as Viewer } from "viewerjs";
import Vue from "vue";
var freeGlobal = typeof global == "object" && global && global.Object === Object && global;
var freeGlobal$1 = freeGlobal;
var freeSelf = typeof self == "object" && self && self.Object === Object && self;
var root = freeGlobal$1 || freeSelf || Function("return this")();
var root$1 = root;
var Symbol$1 = root$1.Symbol;
var Symbol$2 = Symbol$1;
var objectProto$8 = Object.prototype;
var hasOwnProperty$6 = objectProto$8.hasOwnProperty;
var nativeObjectToString$1 = objectProto$8.toString;
var symToStringTag$1 = Symbol$2 ? Symbol$2.toStringTag : void 0;
function getRawTag(value) {
  var isOwn = hasOwnProperty$6.call(value, symToStringTag$1), tag = value[symToStringTag$1];
  try {
    value[symToStringTag$1] = void 0;
    var unmasked = true;
  } catch (e) {
  }
  var result = nativeObjectToString$1.call(value);
  if (unmasked) {
    if (isOwn) {
      value[symToStringTag$1] = tag;
    } else {
      delete value[symToStringTag$1];
    }
  }
  return result;
}
var objectProto$7 = Object.prototype;
var nativeObjectToString = objectProto$7.toString;
function objectToString(value) {
  return nativeObjectToString.call(value);
}
var nullTag = "[object Null]", undefinedTag = "[object Undefined]";
var symToStringTag = Symbol$2 ? Symbol$2.toStringTag : void 0;
function baseGetTag(value) {
  if (value == null) {
    return value === void 0 ? undefinedTag : nullTag;
  }
  return symToStringTag && symToStringTag in Object(value) ? getRawTag(value) : objectToString(value);
}
function isObjectLike(value) {
  return value != null && typeof value == "object";
}
var symbolTag = "[object Symbol]";
function isSymbol(value) {
  return typeof value == "symbol" || isObjectLike(value) && baseGetTag(value) == symbolTag;
}
var isArray = Array.isArray;
var isArray$1 = isArray;
var reWhitespace = /\s/;
function trimmedEndIndex(string) {
  var index2 = string.length;
  while (index2-- && reWhitespace.test(string.charAt(index2))) {
  }
  return index2;
}
var reTrimStart = /^\s+/;
function baseTrim(string) {
  return string ? string.slice(0, trimmedEndIndex(string) + 1).replace(reTrimStart, "") : string;
}
function isObject(value) {
  var type = typeof value;
  return value != null && (type == "object" || type == "function");
}
var NAN = 0 / 0;
var reIsBadHex = /^[-+]0x[0-9a-f]+$/i;
var reIsBinary = /^0b[01]+$/i;
var reIsOctal = /^0o[0-7]+$/i;
var freeParseInt = parseInt;
function toNumber(value) {
  if (typeof value == "number") {
    return value;
  }
  if (isSymbol(value)) {
    return NAN;
  }
  if (isObject(value)) {
    var other = typeof value.valueOf == "function" ? value.valueOf() : value;
    value = isObject(other) ? other + "" : other;
  }
  if (typeof value != "string") {
    return value === 0 ? value : +value;
  }
  value = baseTrim(value);
  var isBinary = reIsBinary.test(value);
  return isBinary || reIsOctal.test(value) ? freeParseInt(value.slice(2), isBinary ? 2 : 8) : reIsBadHex.test(value) ? NAN : +value;
}
function identity(value) {
  return value;
}
var asyncTag = "[object AsyncFunction]", funcTag$1 = "[object Function]", genTag = "[object GeneratorFunction]", proxyTag = "[object Proxy]";
function isFunction(value) {
  if (!isObject(value)) {
    return false;
  }
  var tag = baseGetTag(value);
  return tag == funcTag$1 || tag == genTag || tag == asyncTag || tag == proxyTag;
}
var coreJsData = root$1["__core-js_shared__"];
var coreJsData$1 = coreJsData;
var maskSrcKey = function() {
  var uid = /[^.]+$/.exec(coreJsData$1 && coreJsData$1.keys && coreJsData$1.keys.IE_PROTO || "");
  return uid ? "Symbol(src)_1." + uid : "";
}();
function isMasked(func) {
  return !!maskSrcKey && maskSrcKey in func;
}
var funcProto$1 = Function.prototype;
var funcToString$1 = funcProto$1.toString;
function toSource(func) {
  if (func != null) {
    try {
      return funcToString$1.call(func);
    } catch (e) {
    }
    try {
      return func + "";
    } catch (e) {
    }
  }
  return "";
}
var reRegExpChar = /[\\^$.*+?()[\]{}|]/g;
var reIsHostCtor = /^\[object .+?Constructor\]$/;
var funcProto = Function.prototype, objectProto$6 = Object.prototype;
var funcToString = funcProto.toString;
var hasOwnProperty$5 = objectProto$6.hasOwnProperty;
var reIsNative = RegExp(
  "^" + funcToString.call(hasOwnProperty$5).replace(reRegExpChar, "\\$&").replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, "$1.*?") + "$"
);
function baseIsNative(value) {
  if (!isObject(value) || isMasked(value)) {
    return false;
  }
  var pattern = isFunction(value) ? reIsNative : reIsHostCtor;
  return pattern.test(toSource(value));
}
function getValue(object, key) {
  return object == null ? void 0 : object[key];
}
function getNative(object, key) {
  var value = getValue(object, key);
  return baseIsNative(value) ? value : void 0;
}
function apply(func, thisArg, args) {
  switch (args.length) {
    case 0:
      return func.call(thisArg);
    case 1:
      return func.call(thisArg, args[0]);
    case 2:
      return func.call(thisArg, args[0], args[1]);
    case 3:
      return func.call(thisArg, args[0], args[1], args[2]);
  }
  return func.apply(thisArg, args);
}
var HOT_COUNT = 800, HOT_SPAN = 16;
var nativeNow = Date.now;
function shortOut(func) {
  var count = 0, lastCalled = 0;
  return function() {
    var stamp = nativeNow(), remaining = HOT_SPAN - (stamp - lastCalled);
    lastCalled = stamp;
    if (remaining > 0) {
      if (++count >= HOT_COUNT) {
        return arguments[0];
      }
    } else {
      count = 0;
    }
    return func.apply(void 0, arguments);
  };
}
function constant(value) {
  return function() {
    return value;
  };
}
var defineProperty = function() {
  try {
    var func = getNative(Object, "defineProperty");
    func({}, "", {});
    return func;
  } catch (e) {
  }
}();
var defineProperty$1 = defineProperty;
var baseSetToString = !defineProperty$1 ? identity : function(func, string) {
  return defineProperty$1(func, "toString", {
    "configurable": true,
    "enumerable": false,
    "value": constant(string),
    "writable": true
  });
};
var baseSetToString$1 = baseSetToString;
var setToString = shortOut(baseSetToString$1);
var setToString$1 = setToString;
var MAX_SAFE_INTEGER$1 = 9007199254740991;
var reIsUint = /^(?:0|[1-9]\d*)$/;
function isIndex(value, length) {
  var type = typeof value;
  length = length == null ? MAX_SAFE_INTEGER$1 : length;
  return !!length && (type == "number" || type != "symbol" && reIsUint.test(value)) && (value > -1 && value % 1 == 0 && value < length);
}
function baseAssignValue(object, key, value) {
  if (key == "__proto__" && defineProperty$1) {
    defineProperty$1(object, key, {
      "configurable": true,
      "enumerable": true,
      "value": value,
      "writable": true
    });
  } else {
    object[key] = value;
  }
}
function eq(value, other) {
  return value === other || value !== value && other !== other;
}
var objectProto$5 = Object.prototype;
var hasOwnProperty$4 = objectProto$5.hasOwnProperty;
function assignValue(object, key, value) {
  var objValue = object[key];
  if (!(hasOwnProperty$4.call(object, key) && eq(objValue, value)) || value === void 0 && !(key in object)) {
    baseAssignValue(object, key, value);
  }
}
function copyObject(source, props, object, customizer) {
  var isNew = !object;
  object || (object = {});
  var index2 = -1, length = props.length;
  while (++index2 < length) {
    var key = props[index2];
    var newValue = customizer ? customizer(object[key], source[key], key, object, source) : void 0;
    if (newValue === void 0) {
      newValue = source[key];
    }
    if (isNew) {
      baseAssignValue(object, key, newValue);
    } else {
      assignValue(object, key, newValue);
    }
  }
  return object;
}
var nativeMax$1 = Math.max;
function overRest(func, start, transform) {
  start = nativeMax$1(start === void 0 ? func.length - 1 : start, 0);
  return function() {
    var args = arguments, index2 = -1, length = nativeMax$1(args.length - start, 0), array = Array(length);
    while (++index2 < length) {
      array[index2] = args[start + index2];
    }
    index2 = -1;
    var otherArgs = Array(start + 1);
    while (++index2 < start) {
      otherArgs[index2] = args[index2];
    }
    otherArgs[start] = transform(array);
    return apply(func, this, otherArgs);
  };
}
function baseRest(func, start) {
  return setToString$1(overRest(func, start, identity), func + "");
}
var MAX_SAFE_INTEGER = 9007199254740991;
function isLength(value) {
  return typeof value == "number" && value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;
}
function isArrayLike(value) {
  return value != null && isLength(value.length) && !isFunction(value);
}
function isIterateeCall(value, index2, object) {
  if (!isObject(object)) {
    return false;
  }
  var type = typeof index2;
  if (type == "number" ? isArrayLike(object) && isIndex(index2, object.length) : type == "string" && index2 in object) {
    return eq(object[index2], value);
  }
  return false;
}
function createAssigner(assigner) {
  return baseRest(function(object, sources) {
    var index2 = -1, length = sources.length, customizer = length > 1 ? sources[length - 1] : void 0, guard = length > 2 ? sources[2] : void 0;
    customizer = assigner.length > 3 && typeof customizer == "function" ? (length--, customizer) : void 0;
    if (guard && isIterateeCall(sources[0], sources[1], guard)) {
      customizer = length < 3 ? void 0 : customizer;
      length = 1;
    }
    object = Object(object);
    while (++index2 < length) {
      var source = sources[index2];
      if (source) {
        assigner(object, source, index2, customizer);
      }
    }
    return object;
  });
}
var objectProto$4 = Object.prototype;
function isPrototype(value) {
  var Ctor = value && value.constructor, proto = typeof Ctor == "function" && Ctor.prototype || objectProto$4;
  return value === proto;
}
function baseTimes(n, iteratee) {
  var index2 = -1, result = Array(n);
  while (++index2 < n) {
    result[index2] = iteratee(index2);
  }
  return result;
}
var argsTag$1 = "[object Arguments]";
function baseIsArguments(value) {
  return isObjectLike(value) && baseGetTag(value) == argsTag$1;
}
var objectProto$3 = Object.prototype;
var hasOwnProperty$3 = objectProto$3.hasOwnProperty;
var propertyIsEnumerable = objectProto$3.propertyIsEnumerable;
var isArguments = baseIsArguments(function() {
  return arguments;
}()) ? baseIsArguments : function(value) {
  return isObjectLike(value) && hasOwnProperty$3.call(value, "callee") && !propertyIsEnumerable.call(value, "callee");
};
var isArguments$1 = isArguments;
function stubFalse() {
  return false;
}
var freeExports$1 = typeof exports == "object" && exports && !exports.nodeType && exports;
var freeModule$1 = freeExports$1 && typeof module == "object" && module && !module.nodeType && module;
var moduleExports$1 = freeModule$1 && freeModule$1.exports === freeExports$1;
var Buffer = moduleExports$1 ? root$1.Buffer : void 0;
var nativeIsBuffer = Buffer ? Buffer.isBuffer : void 0;
var isBuffer = nativeIsBuffer || stubFalse;
var isBuffer$1 = isBuffer;
var argsTag = "[object Arguments]", arrayTag = "[object Array]", boolTag = "[object Boolean]", dateTag = "[object Date]", errorTag = "[object Error]", funcTag = "[object Function]", mapTag = "[object Map]", numberTag = "[object Number]", objectTag = "[object Object]", regexpTag = "[object RegExp]", setTag = "[object Set]", stringTag = "[object String]", weakMapTag = "[object WeakMap]";
var arrayBufferTag = "[object ArrayBuffer]", dataViewTag = "[object DataView]", float32Tag = "[object Float32Array]", float64Tag = "[object Float64Array]", int8Tag = "[object Int8Array]", int16Tag = "[object Int16Array]", int32Tag = "[object Int32Array]", uint8Tag = "[object Uint8Array]", uint8ClampedTag = "[object Uint8ClampedArray]", uint16Tag = "[object Uint16Array]", uint32Tag = "[object Uint32Array]";
var typedArrayTags = {};
typedArrayTags[float32Tag] = typedArrayTags[float64Tag] = typedArrayTags[int8Tag] = typedArrayTags[int16Tag] = typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] = typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] = typedArrayTags[uint32Tag] = true;
typedArrayTags[argsTag] = typedArrayTags[arrayTag] = typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] = typedArrayTags[dataViewTag] = typedArrayTags[dateTag] = typedArrayTags[errorTag] = typedArrayTags[funcTag] = typedArrayTags[mapTag] = typedArrayTags[numberTag] = typedArrayTags[objectTag] = typedArrayTags[regexpTag] = typedArrayTags[setTag] = typedArrayTags[stringTag] = typedArrayTags[weakMapTag] = false;
function baseIsTypedArray(value) {
  return isObjectLike(value) && isLength(value.length) && !!typedArrayTags[baseGetTag(value)];
}
function baseUnary(func) {
  return function(value) {
    return func(value);
  };
}
var freeExports = typeof exports == "object" && exports && !exports.nodeType && exports;
var freeModule = freeExports && typeof module == "object" && module && !module.nodeType && module;
var moduleExports = freeModule && freeModule.exports === freeExports;
var freeProcess = moduleExports && freeGlobal$1.process;
var nodeUtil = function() {
  try {
    var types = freeModule && freeModule.require && freeModule.require("util").types;
    if (types) {
      return types;
    }
    return freeProcess && freeProcess.binding && freeProcess.binding("util");
  } catch (e) {
  }
}();
var nodeUtil$1 = nodeUtil;
var nodeIsTypedArray = nodeUtil$1 && nodeUtil$1.isTypedArray;
var isTypedArray = nodeIsTypedArray ? baseUnary(nodeIsTypedArray) : baseIsTypedArray;
var isTypedArray$1 = isTypedArray;
var objectProto$2 = Object.prototype;
var hasOwnProperty$2 = objectProto$2.hasOwnProperty;
function arrayLikeKeys(value, inherited) {
  var isArr = isArray$1(value), isArg = !isArr && isArguments$1(value), isBuff = !isArr && !isArg && isBuffer$1(value), isType = !isArr && !isArg && !isBuff && isTypedArray$1(value), skipIndexes = isArr || isArg || isBuff || isType, result = skipIndexes ? baseTimes(value.length, String) : [], length = result.length;
  for (var key in value) {
    if ((inherited || hasOwnProperty$2.call(value, key)) && !(skipIndexes && (key == "length" || isBuff && (key == "offset" || key == "parent") || isType && (key == "buffer" || key == "byteLength" || key == "byteOffset") || isIndex(key, length)))) {
      result.push(key);
    }
  }
  return result;
}
function overArg(func, transform) {
  return function(arg) {
    return func(transform(arg));
  };
}
var nativeKeys = overArg(Object.keys, Object);
var nativeKeys$1 = nativeKeys;
var objectProto$1 = Object.prototype;
var hasOwnProperty$1 = objectProto$1.hasOwnProperty;
function baseKeys(object) {
  if (!isPrototype(object)) {
    return nativeKeys$1(object);
  }
  var result = [];
  for (var key in Object(object)) {
    if (hasOwnProperty$1.call(object, key) && key != "constructor") {
      result.push(key);
    }
  }
  return result;
}
function keys(object) {
  return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object);
}
var objectProto = Object.prototype;
var hasOwnProperty = objectProto.hasOwnProperty;
var assign = createAssigner(function(object, source) {
  if (isPrototype(source) || isArrayLike(source)) {
    copyObject(source, keys(source), object);
    return;
  }
  for (var key in source) {
    if (hasOwnProperty.call(source, key)) {
      assignValue(object, key, source[key]);
    }
  }
});
var assign$1 = assign;
var now = function() {
  return root$1.Date.now();
};
var now$1 = now;
var FUNC_ERROR_TEXT = "Expected a function";
var nativeMax = Math.max, nativeMin = Math.min;
function debounce(func, wait, options) {
  var lastArgs, lastThis, maxWait, result, timerId, lastCallTime, lastInvokeTime = 0, leading = false, maxing = false, trailing = true;
  if (typeof func != "function") {
    throw new TypeError(FUNC_ERROR_TEXT);
  }
  wait = toNumber(wait) || 0;
  if (isObject(options)) {
    leading = !!options.leading;
    maxing = "maxWait" in options;
    maxWait = maxing ? nativeMax(toNumber(options.maxWait) || 0, wait) : maxWait;
    trailing = "trailing" in options ? !!options.trailing : trailing;
  }
  function invokeFunc(time) {
    var args = lastArgs, thisArg = lastThis;
    lastArgs = lastThis = void 0;
    lastInvokeTime = time;
    result = func.apply(thisArg, args);
    return result;
  }
  function leadingEdge(time) {
    lastInvokeTime = time;
    timerId = setTimeout(timerExpired, wait);
    return leading ? invokeFunc(time) : result;
  }
  function remainingWait(time) {
    var timeSinceLastCall = time - lastCallTime, timeSinceLastInvoke = time - lastInvokeTime, timeWaiting = wait - timeSinceLastCall;
    return maxing ? nativeMin(timeWaiting, maxWait - timeSinceLastInvoke) : timeWaiting;
  }
  function shouldInvoke(time) {
    var timeSinceLastCall = time - lastCallTime, timeSinceLastInvoke = time - lastInvokeTime;
    return lastCallTime === void 0 || timeSinceLastCall >= wait || timeSinceLastCall < 0 || maxing && timeSinceLastInvoke >= maxWait;
  }
  function timerExpired() {
    var time = now$1();
    if (shouldInvoke(time)) {
      return trailingEdge(time);
    }
    timerId = setTimeout(timerExpired, remainingWait(time));
  }
  function trailingEdge(time) {
    timerId = void 0;
    if (trailing && lastArgs) {
      return invokeFunc(time);
    }
    lastArgs = lastThis = void 0;
    return result;
  }
  function cancel() {
    if (timerId !== void 0) {
      clearTimeout(timerId);
    }
    lastInvokeTime = 0;
    lastArgs = lastCallTime = lastThis = timerId = void 0;
  }
  function flush() {
    return timerId === void 0 ? result : trailingEdge(now$1());
  }
  function debounced() {
    var time = now$1(), isInvoking = shouldInvoke(time);
    lastArgs = arguments;
    lastThis = this;
    lastCallTime = time;
    if (isInvoking) {
      if (timerId === void 0) {
        return leadingEdge(lastCallTime);
      }
      if (maxing) {
        clearTimeout(timerId);
        timerId = setTimeout(timerExpired, wait);
        return invokeFunc(lastCallTime);
      }
    }
    if (timerId === void 0) {
      timerId = setTimeout(timerExpired, wait);
    }
    return result;
  }
  debounced.cancel = cancel;
  debounced.flush = flush;
  return debounced;
}
var render = function() {
  var _vm = this;
  var _h = _vm.$createElement;
  var _c = _vm._self._c || _h;
  return _c("div", [_vm._t("default", null, { "images": _vm.images, "options": _vm.options })], 2);
};
var staticRenderFns = [];
function normalizeComponent(scriptExports, render2, staticRenderFns2, functionalTemplate, injectStyles, scopeId, moduleIdentifier, shadowMode) {
  var options = typeof scriptExports === "function" ? scriptExports.options : scriptExports;
  if (render2) {
    options.render = render2;
    options.staticRenderFns = staticRenderFns2;
    options._compiled = true;
  }
  if (functionalTemplate) {
    options.functional = true;
  }
  if (scopeId) {
    options._scopeId = "data-v-" + scopeId;
  }
  var hook;
  if (moduleIdentifier) {
    hook = function(context) {
      context = context || this.$vnode && this.$vnode.ssrContext || this.parent && this.parent.$vnode && this.parent.$vnode.ssrContext;
      if (!context && typeof __VUE_SSR_CONTEXT__ !== "undefined") {
        context = __VUE_SSR_CONTEXT__;
      }
      if (injectStyles) {
        injectStyles.call(this, context);
      }
      if (context && context._registeredComponents) {
        context._registeredComponents.add(moduleIdentifier);
      }
    };
    options._ssrRegister = hook;
  } else if (injectStyles) {
    hook = shadowMode ? function() {
      injectStyles.call(
        this,
        (options.functional ? this.parent : this).$root.$options.shadowRoot
      );
    } : injectStyles;
  }
  if (hook) {
    if (options.functional) {
      options._injectStyles = hook;
      var originalRender = options.render;
      options.render = function renderWithStyleInjection(h, context) {
        hook.call(context);
        return originalRender(h, context);
      };
    } else {
      var existing = options.beforeCreate;
      options.beforeCreate = existing ? [].concat(existing, hook) : [hook];
    }
  }
  return {
    exports: scriptExports,
    options
  };
}
const __vue2_script = {
  props: {
    images: {
      type: Array
    },
    rebuild: {
      type: Boolean,
      default: false
    },
    trigger: {},
    options: {
      type: Object
    }
  },
  data() {
    return {};
  },
  computed: {},
  watch: {
    images() {
      this.$nextTick(() => {
        this.onChange();
      });
    },
    trigger: {
      handler() {
        this.$nextTick(() => {
          this.onChange();
        });
      },
      deep: true
    },
    options: {
      handler() {
        this.$nextTick(() => {
          this.rebuildViewer();
        });
      },
      deep: true
    }
  },
  mounted() {
    this.createViewer();
  },
  unmounted() {
    this.destroyViewer();
  },
  methods: {
    onChange() {
      if (this.rebuild) {
        this.rebuildViewer();
      } else {
        this.updateViewer();
      }
    },
    rebuildViewer() {
      this.destroyViewer();
      this.createViewer();
    },
    updateViewer() {
      if (this.$viewer) {
        this.$viewer.update();
        this.$emit("inited", this.$viewer);
      } else {
        this.createViewer();
      }
    },
    destroyViewer() {
      this.$viewer && this.$viewer.destroy();
    },
    createViewer() {
      this.$viewer = new Viewer(this.$el, this.options);
      this.$emit("inited", this.$viewer);
    }
  }
};
const __cssModules = {};
var __component__ = /* @__PURE__ */ normalizeComponent(
  __vue2_script,
  render,
  staticRenderFns,
  false,
  __vue2_injectStyles,
  null,
  null,
  null
);
function __vue2_injectStyles(context) {
  for (let o in __cssModules) {
    this[o] = __cssModules[o];
  }
}
var component = /* @__PURE__ */ function() {
  return __component__.exports;
}();
const directive = ({ name = "viewer", debug = false } = {}) => {
  function createViewer(el, options, rebuild = false, observer = false) {
    Vue.nextTick(() => {
      if (observer && !imageDiff(el))
        return;
      if (rebuild || !el[`$${name}`]) {
        destroyViewer(el);
        el[`$${name}`] = new Viewer(el, options);
        log("Viewer created");
      } else {
        el[`$${name}`].update();
        log("Viewer updated");
      }
    });
  }
  function imageDiff(el) {
    const imageContent = el.innerHTML.match(/<img([\w\W]+?)[\\/]?>/g);
    const viewerImageText = imageContent ? imageContent.join("") : void 0;
    if (el.__viewerImageDiffCache === viewerImageText) {
      log("Element change detected, but image(s) has not changed");
      return false;
    } else {
      log("Image change detected");
      el.__viewerImageDiffCache = viewerImageText;
      return true;
    }
  }
  function createObserver(el, options, debouncedCreateViewer, rebuild) {
    destroyObserver(el);
    const MutationObserver = window.MutationObserver || window.WebKitMutationObserver || window.MozMutationObserver;
    if (!MutationObserver) {
      log("Observer not supported");
      return;
    }
    const observer = new MutationObserver((mutations) => {
      mutations.forEach((mutation) => {
        log(`Viewer mutation:${mutation.type}`);
        debouncedCreateViewer(el, options, rebuild, true);
      });
    });
    const config = { attributes: true, childList: true, characterData: true, subtree: true };
    observer.observe(el, config);
    el.__viewerMutationObserver = observer;
    log("Observer created");
  }
  function createWatcher(el, { expression }, vnode, debouncedCreateViewer) {
    const simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/;
    if (!expression || !simplePathRE.test(expression)) {
      log("Only simple dot-delimited paths can create watcher");
      return;
    }
    el.__viewerUnwatch = vnode.context.$watch(expression, (newVal, oldVal) => {
      log("Change detected by watcher: ", expression);
      debouncedCreateViewer(el, newVal, true);
    }, {
      deep: true
    });
    log("Watcher created, expression: ", expression);
  }
  function destroyViewer(el) {
    if (!el[`$${name}`]) {
      return;
    }
    el[`$${name}`].destroy();
    delete el[`$${name}`];
    log("Viewer destroyed");
  }
  function destroyObserver(el) {
    if (!el.__viewerMutationObserver) {
      return;
    }
    el.__viewerMutationObserver.disconnect();
    delete el.__viewerMutationObserver;
    log("Observer destroyed");
  }
  function destroyWatcher(el) {
    if (!el.__viewerUnwatch) {
      return;
    }
    el.__viewerUnwatch();
    delete el.__viewerUnwatch;
    log("Watcher destroyed");
  }
  function log() {
    debug && console.log(...arguments);
  }
  const directive2 = {
    bind(el, binding, vnode) {
      log("Viewer bind");
      const debouncedCreateViewer = debounce(createViewer, 50);
      debouncedCreateViewer(el, binding.value);
      createWatcher(el, binding, vnode, debouncedCreateViewer);
      if (!binding.modifiers.static) {
        createObserver(el, binding.value, debouncedCreateViewer, binding.modifiers.rebuild);
      }
    },
    unbind(el, binding) {
      log("Viewer unbind");
      destroyObserver(el);
      destroyWatcher(el);
      destroyViewer(el);
    }
  };
  return directive2;
};
const api = ({ images = [], options = {} } = {}) => {
  options = assign$1(options, {
    inline: false
  });
  const ViewerToken = Vue.extend({
    render(h) {
      return h(
        "div",
        {
          style: {
            display: "none"
          },
          class: ["__viewer-token"]
        },
        images.map((attr) => {
          return h(
            "img",
            {
              attrs: typeof attr === "string" ? { src: attr } : attr
            }
          );
        })
      );
    }
  });
  const token = new ViewerToken();
  token.$mount();
  document.body.appendChild(token.$el);
  const $viewer = new Viewer(token.$el, options);
  const $destroy = $viewer.destroy.bind($viewer);
  $viewer.destroy = function() {
    $destroy();
    token.$destroy();
    document.body.removeChild(token.$el);
    return $viewer;
  };
  $viewer.show();
  token.$el.addEventListener("hidden", function() {
    if (this.viewer === $viewer) {
      $viewer.destroy();
    }
  });
  return $viewer;
};
var index = {
  install(Vue2, { name = "viewer", debug = false, defaultOptions } = {}) {
    Viewer.setDefaults(defaultOptions);
    Vue2.component(name, assign$1(component, { name }));
    Vue2.directive(name, directive({ name, debug }));
    Vue2.prototype[`$${name}Api`] = api;
  },
  setDefaults(defaultOptions) {
    Viewer.setDefaults(defaultOptions);
  }
};
export { api, component, index as default, directive };