(function (global, factory) {
  typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('is-url'), require('is-plain-object'), require('nanoid')) :
  typeof define === 'function' && define.amd ? define(['exports', 'is-url', 'is-plain-object', 'nanoid'], factory) :
  (global = global || self, factory(global.Formulate = {}, global.isUrl, global.isPlainObject, global.nanoid));
}(this, (function (exports, isUrl, isPlainObject, nanoid) { 'use strict';

  isUrl = isUrl && isUrl.hasOwnProperty('default') ? isUrl['default'] : isUrl;
  isPlainObject = isPlainObject && isPlainObject.hasOwnProperty('default') ? isPlainObject['default'] : isPlainObject;
  nanoid = nanoid && nanoid.hasOwnProperty('default') ? nanoid['default'] : nanoid;

  var library = {
    // === SINGLE LINE TEXT STYLE INPUTS
    text: {
      classification: 'text',
      component: 'FormulateInputText'
    },
    email: {
      classification: 'text',
      component: 'FormulateInputText'
    },
    number: {
      classification: 'text',
      component: 'FormulateInputText'
    },
    color: {
      classification: 'text',
      component: 'FormulateInputText'
    },
    date: {
      classification: 'text',
      component: 'FormulateInputText'
    },
    hidden: {
      classification: 'text',
      component: 'FormulateInputText'
    },
    month: {
      classification: 'text',
      component: 'FormulateInputText'
    },
    password: {
      classification: 'text',
      component: 'FormulateInputText'
    },
    range: {
      classification: 'text',
      component: 'FormulateInputText'
    },
    search: {
      classification: 'text',
      component: 'FormulateInputText'
    },
    tel: {
      classification: 'text',
      component: 'FormulateInputText'
    },
    time: {
      classification: 'text',
      component: 'FormulateInputText'
    },
    url: {
      classification: 'text',
      component: 'FormulateInputText'
    },
    week: {
      classification: 'text',
      component: 'FormulateInputText'
    },
    'datetime-local': {
      classification: 'text',
      component: 'FormulateInputText'
    },

    // === MULTI LINE TEXT INPUTS
    textarea: {
      classification: 'textarea',
      component: 'FormulateInputTextArea'
    },

    // === BOX STYLE INPUTS
    checkbox: {
      classification: 'box',
      component: 'FormulateInputBox'
    },
    radio: {
      classification: 'box',
      component: 'FormulateInputBox'
    },

    // === BUTTON STYLE INPUTS
    submit: {
      classification: 'button',
      component: 'FormulateInputButton'
    },
    button: {
      classification: 'button',
      component: 'FormulateInputButton'
    },

    // === SELECT STYLE INPUTS
    select: {
      classification: 'select',
      component: 'FormulateInputSelect'
    }
  };

  /**
   * Function to map over an object.
   * @param {Object} obj An object to map over
   * @param {Function} callback
   */
  function map (original, callback) {
    var obj = {};
    for (var key in original) {
      obj[key] = callback(key, original[key]);
    }
    return obj
  }

  /**
   * Shallow equal.
   * @param {} objA
   * @param {*} objB
   */
  function shallowEqualObjects (objA, objB) {
    if (objA === objB) {
      return true
    }
    if (!objA || !objB) {
      return false
    }
    var aKeys = Object.keys(objA);
    var bKeys = Object.keys(objB);
    var len = aKeys.length;

    if (bKeys.length !== len) {
      return false
    }

    for (var i = 0; i < len; i++) {
      var key = aKeys[i];

      if (objA[key] !== objB[key]) {
        return false
      }
    }
    return true
  }

  /**
   * Given a string, object, falsey, or array - return an array.
   * @param {mixed} item
   */
  function arrayify (item) {
    if (!item) {
      return []
    }
    if (typeof item === 'string') {
      return [item]
    }
    if (Array.isArray(item)) {
      return item
    }
    if (typeof item === 'object') {
      return Object.values(item)
    }
    return []
  }

  /**
   * Given an array or string return an array of callables.
   * @param {array|string} validation
   * @param {array} rules and array of functions
   * @return {array} an array of functions
   */
  function parseRules (validation, rules) {
    if (typeof validation === 'string') {
      return parseRules(validation.split('|'), rules)
    }
    if (!Array.isArray(validation)) {
      return []
    }
    return validation.map(function (rule) { return parseRule(rule, rules); }).filter(function (f) { return !!f; })
  }

  /**
   * Given a string or function, parse it and return the an array in the format
   * [fn, [...arguments]]
   * @param {string|function} rule
   */
  function parseRule (rule, rules) {
    if (typeof rule === 'function') {
      return [rule, []]
    }
    if (Array.isArray(rule) && rule.length) {
      if (typeof rule[0] === 'string' && rules.hasOwnProperty(rule[0])) {
        return [rules[rule.shift()], rule]
      }
      if (typeof rule[0] === 'function') {
        return [rule.shift(), rule]
      }
    }
    if (typeof rule === 'string') {
      var segments = rule.split(':');
      var functionName = segments.shift();
      if (rules.hasOwnProperty(functionName)) {
        return [rules[functionName], segments.length ? segments.join(':').split(',') : []]
      } else {
        throw new Error(("Unknown validation rule " + rule))
      }
    }
    return false
  }

  /**
   * Library of rules
   */
  var rules = {
    /**
     * Rule: the value must be "yes", "on", "1", or true
     */
    accepted: function (value) {
      return Promise.resolve(['yes', 'on', '1', 1, true, 'true'].includes(value))
    },

    /**
     * Rule: must be a value
     */
    required: function (value, isRequired) {
      if ( isRequired === void 0 ) isRequired = true;

      return Promise.resolve((function () {
        if (!isRequired || ['no', 'false'].includes(isRequired)) {
          return true
        }
        if (Array.isArray(value)) {
          return !!value.length
        }
        if (typeof value === 'string') {
          return !!value
        }
        if (typeof value === 'object') {
          return (!value) ? false : !!Object.keys(value).length
        }
        return true
      })())
    },

    /**
     * Rule: Value is in an array (stack).
     */
    in: function (value) {
      var stack = [], len = arguments.length - 1;
      while ( len-- > 0 ) stack[ len ] = arguments[ len + 1 ];

      return Promise.resolve(stack.find(function (item) {
        if (typeof item === 'object') {
          return shallowEqualObjects(item, value)
        }
        return item === value
      }) !== undefined)
    },

    /**
     * Rule: Value is not in stack.
     */
    not: function (value) {
      var stack = [], len = arguments.length - 1;
      while ( len-- > 0 ) stack[ len ] = arguments[ len + 1 ];

      return Promise.resolve(stack.find(function (item) {
        if (typeof item === 'object') {
          return shallowEqualObjects(item, value)
        }
        return item === value
      }) === undefined)
    },

    /**
     * Rule: Match the value against a (stack) of patterns or strings
     */
    matches: function (value) {
      var stack = [], len = arguments.length - 1;
      while ( len-- > 0 ) stack[ len ] = arguments[ len + 1 ];

      return Promise.resolve(!!stack.find(function (pattern) {
        if (pattern instanceof RegExp) {
          return pattern.test(value)
        }
        return pattern === value
      }))
    },

    /**
     * Rule: checks if a string is a valid url
     */
    url: function (value) {
      return Promise.resolve(isUrl(value))
    },

    /**
     * Rule: ensures the value is a date according to Date.parse()
     */
    date: function (value) {
      return Promise.resolve(!isNaN(Date.parse(value)))
    },

    /**
     * Rule: checks if a value is after a given date. Defaults to current time
     */
    after: function (value, compare) {
      if ( compare === void 0 ) compare = false;

      var timestamp = Date.parse(compare || new Date());
      var fieldValue = Date.parse(value);
      return Promise.resolve(isNaN(fieldValue) ? false : (fieldValue > timestamp))
    },

    /**
     * Rule: checks if a value is after a given date. Defaults to current time
     */
    before: function (value, compare) {
      if ( compare === void 0 ) compare = false;

      var timestamp = Date.parse(compare || new Date());
      var fieldValue = Date.parse(value);
      return Promise.resolve(isNaN(fieldValue) ? false : (fieldValue < timestamp))
    },

    /**
     * Rule: checks if the value is only alpha numeric
     */
    alpha: function (value, set) {
      if ( set === void 0 ) set = 'default';

      var sets = {
        default: /^[a-zA-ZÀ-ÖØ-öø-ÿ]+$/,
        latin: /^[a-z][A-Z]$/
      };
      var selectedSet = sets.hasOwnProperty(set) ? set : 'default';
      return Promise.resolve(sets[selectedSet].test(value))
    },

    /**
     * Rule: checks if the value is only alpha numeric
     */
    number: function (value) {
      return Promise.resolve(!isNaN(value))
    },

    /**
     * Rule: checks if the value is alpha numeric
     */
    alphanumeric: function (value, set) {
      if ( set === void 0 ) set = 'default';

      var sets = {
        default: /^[a-zA-Z0-9À-ÖØ-öø-ÿ]+$/,
        latin: /^[a-zA-Z0-9]$/
      };
      var selectedSet = sets.hasOwnProperty(set) ? set : 'default';
      return Promise.resolve(sets[selectedSet].test(value))
    },

    /**
     * Rule: checks if the value is between two other values
     */
    between: function (value, from, to) {
      return Promise.resolve((function () {
        if (from === null || to === null || isNaN(from) || isNaN(to)) {
          return false
        }
        from = Number(from);
        to = Number(to);
        if (!isNaN(value)) {
          value = Number(value);
          return (value > from && value < to)
        }
        if (typeof value === 'string') {
          return value.length > from && value.length < to
        }
        return false
      })())
    },

    /**
     * Rule: tests
     */
    email: function (value) {
      // eslint-disable-next-line
      var isEmail = /^(([^<>()\[\]\.,;:\s@\"]+(\.[^<>()\[\]\.,;:\s@\"]+)*)|(\".+\"))@(([^<>()[\]\.,;:\s@\"]+\.)+[^<>()[\]\.,;:\s@\"]{2,})$/i;
      return Promise.resolve(isEmail.test(value))
    },

    /**
     * Check the file type is correct.
     */
    mime: function (files) {
      var types = [], len = arguments.length - 1;
      while ( len-- > 0 ) types[ len ] = arguments[ len + 1 ];

      return Promise.resolve((function () {
        if (typeof window !== 'undefined' && typeof FileReader !== 'undefined' && typeof Blob !== 'undefined') {
          for (var i in files) {
            if (!types.includes(files[i].type)) {
              return false
            }
          }
        }
        return true
      })())
    },

    /**
     * Check the minimum value of a particular.
     */
    min: function (value, minimum) {
      return Promise.resolve((function () {
        minimum = Number(minimum);
        if (!isNaN(value)) {
          value = Number(value);
          return value >= minimum
        }
        if (typeof value === 'string') {
          return value.length >= minimum
        }
        if (Array.isArray(value)) {
          return value.length >= minimum
        }
        return false
      })())
    },

    /**
     * Check the minimum value of a particular.
     */
    max: function (value, minimum) {
      return Promise.resolve((function () {
        minimum = Number(minimum);
        if (!isNaN(value)) {
          value = Number(value);
          return value <= minimum
        }
        if (typeof value === 'string') {
          return value.length <= minimum
        }
        if (Array.isArray(value)) {
          return value.length <= minimum
        }
        return false
      })())
    }
  };

  /**
   * For a single instance of an input, export all of the context needed to fully
   * render that element.
   * @return {object}
   */
  var context = {
    context: function context () {
      if (this.debug) {
        console.log(((this.type) + " re-context"));
      }
      return defineModel.call(this, Object.assign({}, {type: this.type,
        value: this.value,
        name: this.nameOrFallback,
        classification: this.classification,
        component: this.component,
        id: this.id || this.defaultId,
        label: this.label,
        labelPosition: this.logicalLabelPosition,
        attributes: this.elementAttributes},
        this.typeContext))
    },
    nameOrFallback: nameOrFallback,
    typeContext: typeContext,
    elementAttributes: elementAttributes,
    logicalLabelPosition: logicalLabelPosition,
    isVmodeled: isVmodeled,
    mergedErrors: mergedErrors,
    hasErrors: hasErrors
  };

  /**
   * Given (this.type), return an object to merge with the context
   * @return {object}
   * @return {object}
   */
  function typeContext () {
    var this$1 = this;

    switch (this.classification) {
      case 'select':
        return {
          options: createOptionList.call(this, this.options),
          optionGroups: this.optionGroups ? map(this.optionGroups, function (k, v) { return createOptionList.call(this$1, v); }) : false,
          placeholder: this.$attrs.placeholder || false
        }
      case 'group':
        if (this.options) {
          return {
            options: createOptionList.call(this, this.options)
          }
        }
        break
      default:
        return {}
    }
  }

  /**
   * Reducer for attributes that will be applied to each core input element.
   * @return {object}
   */
  function elementAttributes () {
    var attrs = Object.assign({}, this.localAttributes);
    if (this.id) {
      attrs.id = this.id;
    } else {
      attrs.id = this.defaultId;
    }
    return attrs
  }

  /**
   * Determine the a best-guess location for the label (before or after).
   * @return {string} before|after
   */
  function logicalLabelPosition () {
    if (this.labelPosition) {
      return this.labelPosition
    }
    switch (this.classification) {
      case 'box':
        return 'after'
      default:
        return 'before'
    }
  }

  /**
   * Return the element’s name, or select a fallback.
   */
  function nameOrFallback () {
    if (this.name === true) {
      return ((this.type) + "_" + (this.elementAttributes.id))
    }
    if (this.name === false) {
      return false
    }
    return this.name
  }

  /**
   * Determines if this formulate element is v-modeled or not.
   */
  function isVmodeled () {
    return !!(this.$options.propsData.hasOwnProperty('formulateValue') &&
      this._events &&
      Array.isArray(this._events.input) &&
      this._events.input.length)
  }

  /**
   * Given an object or array of options, create an array of objects with label,
   * value, and id.
   * @param {array|object}
   * @return {array}
   */
  function createOptionList (options) {
    if (!Array.isArray(options) && options && typeof options === 'object') {
      var optionList = [];
      var that = this;
      for (var value in options) {
        optionList.push({ value: value, label: options[value], id: ((that.elementAttributes.id) + "_" + value) });
      }
      return optionList
    } else if (Array.isArray(options) && !options.length) {
      return [{ value: this.value, label: (this.label || this.name), id: this.context.id || nanoid(9) }]
    }
    return options
  }

  /**
   * The merged errors computed property.
   */
  function mergedErrors () {
    return arrayify(this.errors)
      .concat(arrayify(this.error))
      .concat(arrayify(this.validationErrors))
      .reduce(function (errors, err) { return !errors.includes(err) ? errors.concat(err) : errors; }, [])
  }

  /**
   * Does this computed property have errors.
   */
  function hasErrors () {
    return !!this.mergedErrors.length
  }

  /**
   * Defines the model used throughout the existing context.
   * @param {object} context
   */
  function defineModel (context) {
    return Object.defineProperty(context, 'model', {
      get: modelGetter.bind(this),
      set: modelSetter.bind(this)
    })
  }

  /**
   * Get the value from a model.
   **/
  function modelGetter () {
    var model = this.isVmodeled ? 'formulateValue' : 'internalModelProxy';
    if (this.type === 'checkbox' && !Array.isArray(this[model]) && this.options) {
      return []
    }
    if (!this[model]) {
      return ''
    }
    return this[model]
  }

  /**
   * Set the value from a model.
   **/
  function modelSetter (value) {
    this.internalModelProxy = value;
    this.$emit('input', value);
    if (this.context.name && typeof this.formulateFormSetter === 'function') {
      this.formulateFormSetter(this.context.name, value);
    }
  }

  //

  var script = {
    name: 'FormulateInput',
    inheritAttrs: false,
    inject: {
      formulateFormSetter: { default: undefined },
      formulateFormRegister: { default: undefined }
    },
    model: {
      prop: 'formulateValue',
      event: 'input'
    },
    props: {
      type: {
        type: String,
        default: 'text'
      },
      name: {
        type: [Boolean, String],
        default: true
      },
      /* eslint-disable */
      formulateValue: {
        default: ''
      },
      value: {
        default: false
      },
      /* eslint-enable */
      options: {
        type: [Object, Array, Boolean],
        default: false
      },
      optionGroups: {
        type: [Object, Boolean],
        default: false
      },
      id: {
        type: [String, Boolean, Number],
        default: false
      },
      label: {
        type: [String, Boolean],
        default: false
      },
      labelPosition: {
        type: [String, Boolean],
        default: false
      },
      help: {
        type: [String, Boolean],
        default: false
      },
      debug: {
        type: Boolean,
        default: false
      },
      errors: {
        type: [String, Array, Boolean],
        default: false
      },
      validation: {
        type: [String, Boolean, Array],
        default: false
      },
      validationBehavior: {
        type: String,
        default: 'blur',
        validator: function (value) {
          return ['blur', 'live'].includes(value)
        }
      },
      error: {
        type: [String, Boolean],
        default: false
      }
    },
    data: function data () {
      return {
        defaultId: nanoid(9),
        localAttributes: {},
        internalModelProxy: this.formulateValue,
        validationErrors: []
      }
    },
    computed: Object.assign({}, context,
      {classification: function classification () {
        var classification = this.$formulate.classify(this.type);
        return (classification === 'box' && this.options) ? 'group' : classification
      },
      component: function component () {
        return (this.classification === 'group') ? 'FormulateInputGroup' : this.$formulate.component(this.type)
      }}),
    watch: {
      '$attrs': {
        handler: function handler (value) {
          this.updateLocalAttributes(value);
        },
        deep: true
      },
      internalModelProxy: function internalModelProxy (newValue, oldValue) {
        this.performValidation();
        if (!this.isVmodeled && !shallowEqualObjects(newValue, oldValue)) {
          this.context.model = newValue;
        }
      },
      formulateValue: function formulateValue (newValue, oldValue) {
        if (this.isVmodeled && !shallowEqualObjects(newValue, oldValue)) {
          this.context.model = newValue;
        }
      }
    },
    created: function created () {
      if (this.formulateFormRegister && typeof this.formulateFormRegister === 'function') {
        this.formulateFormRegister(this.nameOrFallback, this);
      }
      this.updateLocalAttributes(this.$attrs);
      this.performValidation();
    },
    methods: {
      updateLocalAttributes: function updateLocalAttributes (value) {
        if (!shallowEqualObjects(value, this.localAttributes)) {
          this.localAttributes = value;
        }
      },
      performValidation: function performValidation () {
        var this$1 = this;

        var rules = parseRules(this.validation, this.$formulate.rules());
        Promise.all(
          rules.map(function (ref) {
            var rule = ref[0];
            var args = ref[1];

            return rule.apply(void 0, [ this$1.context.model ].concat( args ))
              .then(function (res) { return res ? false : 'Validation error!'; })
          })
        )
          .then(function (result) { return result.filter(function (result) { return result; }); })
          .then(function (errorMessages) { this$1.validationErrors = errorMessages; });
      }
    }
  };

  function normalizeComponent(template, style, script, scopeId, isFunctionalTemplate, moduleIdentifier /* server only */, shadowMode, createInjector, createInjectorSSR, createInjectorShadow) {
      if (typeof shadowMode !== 'boolean') {
          createInjectorSSR = createInjector;
          createInjector = shadowMode;
          shadowMode = false;
      }
      // Vue.extend constructor export interop.
      var options = typeof script === 'function' ? script.options : script;
      // render functions
      if (template && template.render) {
          options.render = template.render;
          options.staticRenderFns = template.staticRenderFns;
          options._compiled = true;
          // functional template
          if (isFunctionalTemplate) {
              options.functional = true;
          }
      }
      // scopedId
      if (scopeId) {
          options._scopeId = scopeId;
      }
      var hook;
      if (moduleIdentifier) {
          // server build
          hook = function (context) {
              // 2.3 injection
              context =
                  context || // cached call
                      (this.$vnode && this.$vnode.ssrContext) || // stateful
                      (this.parent && this.parent.$vnode && this.parent.$vnode.ssrContext); // functional
              // 2.2 with runInNewContext: true
              if (!context && typeof __VUE_SSR_CONTEXT__ !== 'undefined') {
                  context = __VUE_SSR_CONTEXT__;
              }
              // inject component styles
              if (style) {
                  style.call(this, createInjectorSSR(context));
              }
              // register component module identifier for async chunk inference
              if (context && context._registeredComponents) {
                  context._registeredComponents.add(moduleIdentifier);
              }
          };
          // used by ssr in case component is cached and beforeCreate
          // never gets called
          options._ssrRegister = hook;
      }
      else if (style) {
          hook = shadowMode
              ? function (context) {
                  style.call(this, createInjectorShadow(context, this.$root.$options.shadowRoot));
              }
              : function (context) {
                  style.call(this, createInjector(context));
              };
      }
      if (hook) {
          if (options.functional) {
              // register for functional component in vue file
              var originalRender = options.render;
              options.render = function renderWithStyleInjection(h, context) {
                  hook.call(context);
                  return originalRender(h, context);
              };
          }
          else {
              // inject component registration as beforeCreate hook
              var existing = options.beforeCreate;
              options.beforeCreate = existing ? [].concat(existing, hook) : [hook];
          }
      }
      return script;
  }

  /* script */
  var __vue_script__ = script;

  /* template */
  var __vue_render__ = function() {
    var _vm = this;
    var _h = _vm.$createElement;
    var _c = _vm._self._c || _h;
    return _c(
      "div",
      {
        staticClass: "formulate-input",
        attrs: {
          "data-classification": _vm.classification,
          "data-has-errors": _vm.hasErrors,
          "data-type": _vm.type
        }
      },
      [
        _c(
          "div",
          { staticClass: "formulate-input-wrapper" },
          [
            _vm.context.label && _vm.context.labelPosition === "before"
              ? _vm._t(
                  "label",
                  [
                    _c("label", {
                      staticClass:
                        "formulate-input-label formulate-input-label--before",
                      attrs: { for: _vm.context.attributes.id },
                      domProps: { textContent: _vm._s(_vm.context.label) }
                    })
                  ],
                  null,
                  _vm.context
                )
              : _vm._e(),
            _vm._v(" "),
            _vm._t(
              "default",
              [
                _c(_vm.context.component, {
                  tag: "component",
                  attrs: { context: _vm.context }
                })
              ],
              null,
              _vm.context
            ),
            _vm._v(" "),
            _vm.context.label && _vm.context.labelPosition === "after"
              ? _vm._t(
                  "label",
                  [
                    _c("label", {
                      staticClass:
                        "formulate-input-label formulate-input-label--after",
                      attrs: { for: _vm.context.attributes.id },
                      domProps: { textContent: _vm._s(_vm.context.label) }
                    })
                  ],
                  null,
                  _vm.context.label
                )
              : _vm._e()
          ],
          2
        ),
        _vm._v(" "),
        _vm.help
          ? _c("div", {
              staticClass: "formulate-input-help",
              domProps: { textContent: _vm._s(_vm.help) }
            })
          : _vm._e(),
        _vm._v(" "),
        _c("FormulateInputErrors", { attrs: { errors: _vm.mergedErrors } })
      ],
      1
    )
  };
  var __vue_staticRenderFns__ = [];
  __vue_render__._withStripped = true;

    /* style */
    var __vue_inject_styles__ = undefined;
    /* scoped */
    var __vue_scope_id__ = undefined;
    /* module identifier */
    var __vue_module_identifier__ = undefined;
    /* functional template */
    var __vue_is_functional_template__ = false;
    /* style inject */
    
    /* style inject SSR */
    
    /* style inject shadow dom */
    

    
    var FormulateInput = normalizeComponent(
      { render: __vue_render__, staticRenderFns: __vue_staticRenderFns__ },
      __vue_inject_styles__,
      __vue_script__,
      __vue_scope_id__,
      __vue_is_functional_template__,
      __vue_module_identifier__,
      false,
      undefined,
      undefined,
      undefined
    );

  //

  var script$1 = {
    provide: function provide () {
      return {
        formulateFormSetter: this.setFieldValue,
        formulateFormRegister: this.register
      }
    },
    name: 'FormulateForm',
    model: {
      prop: 'formulateValue',
      event: 'input'
    },
    props: {
      name: {
        type: [String, Boolean],
        default: false
      },
      formulateValue: {
        type: Object,
        default: function () { return ({}); }
      }
    },
    data: function data () {
      return {
        registry: {},
        internalFormModelProxy: {}
      }
    },
    computed: {
      hasFormulateValue: function hasFormulateValue () {
        return this.formulateValue && typeof this.formulateValue === 'object'
      },
      isVmodeled: function isVmodeled () {
        return !!(this.$options.propsData.hasOwnProperty('formulateValue') &&
          this._events &&
          Array.isArray(this._events.input) &&
          this._events.input.length)
      }
    },
    watch: {
      formulateValue: {
        handler: function handler (newValue, oldValue) {
          if (this.isVmodeled &&
            newValue &&
            typeof newValue === 'object'
          ) {
            for (var field in newValue) {
              if (this.registry.hasOwnProperty(field) &&
                !shallowEqualObjects(newValue[field], this.internalFormModelProxy[field]) &&
                !shallowEqualObjects(newValue[field], this.registry[field].internalModelProxy[field])
              ) {
                this.setFieldValue(field, newValue[field]);
                this.registry[field].context.model = newValue[field];
              }
            }
          }
        },
        deep: true,
        immediate: false
      }
    },
    created: function created () {
      if (this.$options.propsData.hasOwnProperty('formulateValue')) {
        this.internalFormModelProxy = Object.assign({}, this.formulateValue);
      }
    },
    methods: {
      setFieldValue: function setFieldValue (field, value) {
        var obj;

        Object.assign(this.internalFormModelProxy, ( obj = {}, obj[field] = value, obj ));
        this.$emit('input', Object.assign({}, this.internalFormModelProxy));
      },
      register: function register (field, component) {
        this.registry[field] = component;
        if (!component.$options.propsData.hasOwnProperty('formulateValue') && this.hasFormulateValue && this.formulateValue[field]) {
          // In the case that the form is carrying an initial value and the
          // element is not, set it directly.
          component.context.model = this.formulateValue[field];
        } else if (component.$options.propsData.hasOwnProperty('formulateValue') && !shallowEqualObjects(component.internalModelProxy, this.formulateValue[field])) {
          this.setFieldValue(field, component.internalModelProxy);
        }
      },
      formSubmitted: function formSubmitted () {
        // perform validation here
        this.$emit('submit', this.formModel);
      }
    }
  };

  /* script */
  var __vue_script__$1 = script$1;

  /* template */
  var __vue_render__$1 = function() {
    var _vm = this;
    var _h = _vm.$createElement;
    var _c = _vm._self._c || _h;
    return _c(
      "form",
      {
        on: {
          submit: function($event) {
            $event.preventDefault();
            return _vm.formSubmitted($event)
          }
        }
      },
      [_vm._t("default")],
      2
    )
  };
  var __vue_staticRenderFns__$1 = [];
  __vue_render__$1._withStripped = true;

    /* style */
    var __vue_inject_styles__$1 = undefined;
    /* scoped */
    var __vue_scope_id__$1 = undefined;
    /* module identifier */
    var __vue_module_identifier__$1 = undefined;
    /* functional template */
    var __vue_is_functional_template__$1 = false;
    /* style inject */
    
    /* style inject SSR */
    
    /* style inject shadow dom */
    

    
    var FormulateForm = normalizeComponent(
      { render: __vue_render__$1, staticRenderFns: __vue_staticRenderFns__$1 },
      __vue_inject_styles__$1,
      __vue_script__$1,
      __vue_scope_id__$1,
      __vue_is_functional_template__$1,
      __vue_module_identifier__$1,
      false,
      undefined,
      undefined,
      undefined
    );

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

  var script$2 = {
    props: {
      errors: {
        type: [Boolean, Array],
        required: true
      }
    }
  };

  /* script */
  var __vue_script__$2 = script$2;

  /* template */
  var __vue_render__$2 = function() {
    var _vm = this;
    var _h = _vm.$createElement;
    var _c = _vm._self._c || _h;
    return _vm.errors.length
      ? _c(
          "ul",
          { staticClass: "formulate-input-errors" },
          _vm._l(_vm.errors, function(error) {
            return _c("li", {
              key: error,
              staticClass: "formulate-input-error",
              domProps: { innerHTML: _vm._s(error) }
            })
          }),
          0
        )
      : _vm._e()
  };
  var __vue_staticRenderFns__$2 = [];
  __vue_render__$2._withStripped = true;

    /* style */
    var __vue_inject_styles__$2 = undefined;
    /* scoped */
    var __vue_scope_id__$2 = undefined;
    /* module identifier */
    var __vue_module_identifier__$2 = undefined;
    /* functional template */
    var __vue_is_functional_template__$2 = false;
    /* style inject */
    
    /* style inject SSR */
    
    /* style inject shadow dom */
    

    
    var FormulateInputErrors = normalizeComponent(
      { render: __vue_render__$2, staticRenderFns: __vue_staticRenderFns__$2 },
      __vue_inject_styles__$2,
      __vue_script__$2,
      __vue_scope_id__$2,
      __vue_is_functional_template__$2,
      __vue_module_identifier__$2,
      false,
      undefined,
      undefined,
      undefined
    );

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

  function objectWithoutProperties (obj, exclude) { var target = {}; for (var k in obj) if (Object.prototype.hasOwnProperty.call(obj, k) && exclude.indexOf(k) === -1) target[k] = obj[k]; return target; }
  var script$3 = {
    name: 'FormulateInputGroup',
    props: {
      context: {
        type: Object,
        required: true
      }
    },
    computed: {
      options: function options () {
        return this.context.options || []
      },
      optionsWithContext: function optionsWithContext () {
        var this$1 = this;

        var ref = this.context;
        var options = ref.options;
        var labelPosition = ref.labelPosition;
        var attributes = ref.attributes;
        var classification = ref.classification;
        var rest = objectWithoutProperties( ref, ["options", "labelPosition", "attributes", "classification"] );
        var context = rest;
        return this.options.map(function (option) { return this$1.groupItemContext(context, option); })
      }
    },
    methods: {
      groupItemContext: function groupItemContext () {
        var args = [], len = arguments.length;
        while ( len-- ) args[ len ] = arguments[ len ];

        return Object.assign.apply(Object, [ {} ].concat( args, [{
          component: 'FormulateInput'
        }] ))
      }
    }
  };

  /* script */
  var __vue_script__$3 = script$3;

  /* template */
  var __vue_render__$3 = function() {
    var _vm = this;
    var _h = _vm.$createElement;
    var _c = _vm._self._c || _h;
    return _c(
      "div",
      { staticClass: "formulate-input-group" },
      _vm._l(_vm.optionsWithContext, function(optionContext) {
        return _c(
          optionContext.component,
          _vm._b(
            {
              key: optionContext.id,
              tag: "component",
              staticClass: "formulate-input-group-item",
              model: {
                value: _vm.context.model,
                callback: function($$v) {
                  _vm.$set(_vm.context, "model", $$v);
                },
                expression: "context.model"
              }
            },
            "component",
            optionContext,
            false
          )
        )
      }),
      1
    )
  };
  var __vue_staticRenderFns__$3 = [];
  __vue_render__$3._withStripped = true;

    /* style */
    var __vue_inject_styles__$3 = undefined;
    /* scoped */
    var __vue_scope_id__$3 = undefined;
    /* module identifier */
    var __vue_module_identifier__$3 = undefined;
    /* functional template */
    var __vue_is_functional_template__$3 = false;
    /* style inject */
    
    /* style inject SSR */
    
    /* style inject shadow dom */
    

    
    var FormulateInputGroup = normalizeComponent(
      { render: __vue_render__$3, staticRenderFns: __vue_staticRenderFns__$3 },
      __vue_inject_styles__$3,
      __vue_script__$3,
      __vue_scope_id__$3,
      __vue_is_functional_template__$3,
      __vue_module_identifier__$3,
      false,
      undefined,
      undefined,
      undefined
    );

  /**
   * Default base for input components.
   */
  var FormulateInputMixin = {
    props: {
      context: {
        type: Object,
        required: true
      }
    },
    computed: {
      type: function type () {
        return this.context.type
      },
      id: function id () {
        return this.context.id
      },
      attributes: function attributes () {
        return this.context.attributes || {}
      },
      hasValue: function hasValue () {
        return !!this.context.model
      }
    }
  };

  //

  var script$4 = {
    name: 'FormulateInputBox',
    mixins: [FormulateInputMixin]
  };

  /* script */
  var __vue_script__$4 = script$4;

  /* template */
  var __vue_render__$4 = function() {
    var _vm = this;
    var _h = _vm.$createElement;
    var _c = _vm._self._c || _h;
    return _c(
      "div",
      {
        staticClass: "formulate-input-element formulate-input-element--box",
        attrs: { "data-type": _vm.context.type }
      },
      [
        _vm.type === "checkbox"
          ? _c(
              "input",
              _vm._b(
                {
                  directives: [
                    {
                      name: "model",
                      rawName: "v-model",
                      value: _vm.context.model,
                      expression: "context.model"
                    }
                  ],
                  attrs: { type: "checkbox" },
                  domProps: {
                    value: _vm.context.value,
                    checked: Array.isArray(_vm.context.model)
                      ? _vm._i(_vm.context.model, _vm.context.value) > -1
                      : _vm.context.model
                  },
                  on: {
                    change: function($event) {
                      var $$a = _vm.context.model,
                        $$el = $event.target,
                        $$c = $$el.checked ? true : false;
                      if (Array.isArray($$a)) {
                        var $$v = _vm.context.value,
                          $$i = _vm._i($$a, $$v);
                        if ($$el.checked) {
                          $$i < 0 &&
                            _vm.$set(_vm.context, "model", $$a.concat([$$v]));
                        } else {
                          $$i > -1 &&
                            _vm.$set(
                              _vm.context,
                              "model",
                              $$a.slice(0, $$i).concat($$a.slice($$i + 1))
                            );
                        }
                      } else {
                        _vm.$set(_vm.context, "model", $$c);
                      }
                    }
                  }
                },
                "input",
                _vm.attributes,
                false
              )
            )
          : _vm.type === "radio"
          ? _c(
              "input",
              _vm._b(
                {
                  directives: [
                    {
                      name: "model",
                      rawName: "v-model",
                      value: _vm.context.model,
                      expression: "context.model"
                    }
                  ],
                  attrs: { type: "radio" },
                  domProps: {
                    value: _vm.context.value,
                    checked: _vm._q(_vm.context.model, _vm.context.value)
                  },
                  on: {
                    change: function($event) {
                      return _vm.$set(_vm.context, "model", _vm.context.value)
                    }
                  }
                },
                "input",
                _vm.attributes,
                false
              )
            )
          : _c(
              "input",
              _vm._b(
                {
                  directives: [
                    {
                      name: "model",
                      rawName: "v-model",
                      value: _vm.context.model,
                      expression: "context.model"
                    }
                  ],
                  attrs: { type: _vm.type },
                  domProps: {
                    value: _vm.context.value,
                    value: _vm.context.model
                  },
                  on: {
                    input: function($event) {
                      if ($event.target.composing) {
                        return
                      }
                      _vm.$set(_vm.context, "model", $event.target.value);
                    }
                  }
                },
                "input",
                _vm.attributes,
                false
              )
            ),
        _vm._v(" "),
        _c("label", {
          staticClass: "formulate-input-element-decorator",
          attrs: { for: _vm.id }
        })
      ]
    )
  };
  var __vue_staticRenderFns__$4 = [];
  __vue_render__$4._withStripped = true;

    /* style */
    var __vue_inject_styles__$4 = undefined;
    /* scoped */
    var __vue_scope_id__$4 = undefined;
    /* module identifier */
    var __vue_module_identifier__$4 = undefined;
    /* functional template */
    var __vue_is_functional_template__$4 = false;
    /* style inject */
    
    /* style inject SSR */
    
    /* style inject shadow dom */
    

    
    var FormulateInputBox = normalizeComponent(
      { render: __vue_render__$4, staticRenderFns: __vue_staticRenderFns__$4 },
      __vue_inject_styles__$4,
      __vue_script__$4,
      __vue_scope_id__$4,
      __vue_is_functional_template__$4,
      __vue_module_identifier__$4,
      false,
      undefined,
      undefined,
      undefined
    );

  //

  var script$5 = {
    name: 'FormulateInputText',
    mixins: [FormulateInputMixin]
  };

  /* script */
  var __vue_script__$5 = script$5;

  /* template */
  var __vue_render__$5 = function() {
    var _vm = this;
    var _h = _vm.$createElement;
    var _c = _vm._self._c || _h;
    return _c(
      "div",
      {
        staticClass: "formulate-input-element formulate-input-element--textarea"
      },
      [
        _vm.type === "checkbox"
          ? _c(
              "input",
              _vm._b(
                {
                  directives: [
                    {
                      name: "model",
                      rawName: "v-model",
                      value: _vm.context.model,
                      expression: "context.model"
                    }
                  ],
                  attrs: { type: "checkbox" },
                  domProps: {
                    checked: Array.isArray(_vm.context.model)
                      ? _vm._i(_vm.context.model, null) > -1
                      : _vm.context.model
                  },
                  on: {
                    change: function($event) {
                      var $$a = _vm.context.model,
                        $$el = $event.target,
                        $$c = $$el.checked ? true : false;
                      if (Array.isArray($$a)) {
                        var $$v = null,
                          $$i = _vm._i($$a, $$v);
                        if ($$el.checked) {
                          $$i < 0 &&
                            _vm.$set(_vm.context, "model", $$a.concat([$$v]));
                        } else {
                          $$i > -1 &&
                            _vm.$set(
                              _vm.context,
                              "model",
                              $$a.slice(0, $$i).concat($$a.slice($$i + 1))
                            );
                        }
                      } else {
                        _vm.$set(_vm.context, "model", $$c);
                      }
                    }
                  }
                },
                "input",
                _vm.attributes,
                false
              )
            )
          : _vm.type === "radio"
          ? _c(
              "input",
              _vm._b(
                {
                  directives: [
                    {
                      name: "model",
                      rawName: "v-model",
                      value: _vm.context.model,
                      expression: "context.model"
                    }
                  ],
                  attrs: { type: "radio" },
                  domProps: { checked: _vm._q(_vm.context.model, null) },
                  on: {
                    change: function($event) {
                      return _vm.$set(_vm.context, "model", null)
                    }
                  }
                },
                "input",
                _vm.attributes,
                false
              )
            )
          : _c(
              "input",
              _vm._b(
                {
                  directives: [
                    {
                      name: "model",
                      rawName: "v-model",
                      value: _vm.context.model,
                      expression: "context.model"
                    }
                  ],
                  attrs: { type: _vm.type },
                  domProps: { value: _vm.context.model },
                  on: {
                    input: function($event) {
                      if ($event.target.composing) {
                        return
                      }
                      _vm.$set(_vm.context, "model", $event.target.value);
                    }
                  }
                },
                "input",
                _vm.attributes,
                false
              )
            )
      ]
    )
  };
  var __vue_staticRenderFns__$5 = [];
  __vue_render__$5._withStripped = true;

    /* style */
    var __vue_inject_styles__$5 = undefined;
    /* scoped */
    var __vue_scope_id__$5 = undefined;
    /* module identifier */
    var __vue_module_identifier__$5 = undefined;
    /* functional template */
    var __vue_is_functional_template__$5 = false;
    /* style inject */
    
    /* style inject SSR */
    
    /* style inject shadow dom */
    

    
    var FormulateInputText = normalizeComponent(
      { render: __vue_render__$5, staticRenderFns: __vue_staticRenderFns__$5 },
      __vue_inject_styles__$5,
      __vue_script__$5,
      __vue_scope_id__$5,
      __vue_is_functional_template__$5,
      __vue_module_identifier__$5,
      false,
      undefined,
      undefined,
      undefined
    );

  //

  var script$6 = {
    name: 'FormulateInputSelect',
    mixins: [FormulateInputMixin],
    computed: {
      options: function options () {
        return this.context.options || {}
      },
      optionGroups: function optionGroups () {
        return this.context.optionGroups || false
      },
      placeholderSelected: function placeholderSelected () {
        return !!(!this.hasValue && this.context.attributes && this.context.attributes.placeholder)
      }
    }
  };

  /* script */
  var __vue_script__$6 = script$6;

  /* template */
  var __vue_render__$6 = function() {
    var _vm = this;
    var _h = _vm.$createElement;
    var _c = _vm._self._c || _h;
    return _c(
      "div",
      { staticClass: "formulate-input-element formulate-input-element--select" },
      [
        _c(
          "select",
          _vm._b(
            {
              directives: [
                {
                  name: "model",
                  rawName: "v-model",
                  value: _vm.context.model,
                  expression: "context.model"
                }
              ],
              attrs: { "data-placeholder-selected": _vm.placeholderSelected },
              on: {
                change: function($event) {
                  var $$selectedVal = Array.prototype.filter
                    .call($event.target.options, function(o) {
                      return o.selected
                    })
                    .map(function(o) {
                      var val = "_value" in o ? o._value : o.value;
                      return val
                    });
                  _vm.$set(
                    _vm.context,
                    "model",
                    $event.target.multiple ? $$selectedVal : $$selectedVal[0]
                  );
                }
              }
            },
            "select",
            _vm.attributes,
            false
          ),
          [
            _vm.context.placeholder
              ? _c(
                  "option",
                  {
                    attrs: { value: "", disabled: "" },
                    domProps: { selected: !_vm.hasValue }
                  },
                  [
                    _vm._v(
                      "\n      " + _vm._s(_vm.context.placeholder) + "\n    "
                    )
                  ]
                )
              : _vm._e(),
            _vm._v(" "),
            !_vm.optionGroups
              ? _vm._l(_vm.options, function(option) {
                  return _c(
                    "option",
                    _vm._b(
                      {
                        key: option.id,
                        domProps: {
                          value: option.value,
                          textContent: _vm._s(option.label)
                        }
                      },
                      "option",
                      option.attributes || {},
                      false
                    )
                  )
                })
              : _vm._l(_vm.optionGroups, function(subOptions, label) {
                  return _c(
                    "optgroup",
                    { key: label, attrs: { label: label } },
                    _vm._l(subOptions, function(option) {
                      return _c(
                        "option",
                        _vm._b(
                          {
                            key: option.id,
                            domProps: {
                              value: option.value,
                              textContent: _vm._s(option.label)
                            }
                          },
                          "option",
                          option.attributes || {},
                          false
                        )
                      )
                    }),
                    0
                  )
                })
          ],
          2
        )
      ]
    )
  };
  var __vue_staticRenderFns__$6 = [];
  __vue_render__$6._withStripped = true;

    /* style */
    var __vue_inject_styles__$6 = undefined;
    /* scoped */
    var __vue_scope_id__$6 = undefined;
    /* module identifier */
    var __vue_module_identifier__$6 = undefined;
    /* functional template */
    var __vue_is_functional_template__$6 = false;
    /* style inject */
    
    /* style inject SSR */
    
    /* style inject shadow dom */
    

    
    var FormulateInputSelect = normalizeComponent(
      { render: __vue_render__$6, staticRenderFns: __vue_staticRenderFns__$6 },
      __vue_inject_styles__$6,
      __vue_script__$6,
      __vue_scope_id__$6,
      __vue_is_functional_template__$6,
      __vue_module_identifier__$6,
      false,
      undefined,
      undefined,
      undefined
    );

  //

  var script$7 = {
    name: 'FormulateInputTextArea',
    mixins: [FormulateInputMixin]
  };

  /* script */
  var __vue_script__$7 = script$7;

  /* template */
  var __vue_render__$7 = function() {
    var _vm = this;
    var _h = _vm.$createElement;
    var _c = _vm._self._c || _h;
    return _c(
      "div",
      {
        staticClass: "formulate-input-element formulate-input-element--textarea"
      },
      [
        _c(
          "textarea",
          _vm._b(
            {
              directives: [
                {
                  name: "model",
                  rawName: "v-model",
                  value: _vm.context.model,
                  expression: "context.model"
                }
              ],
              domProps: { value: _vm.context.model },
              on: {
                input: function($event) {
                  if ($event.target.composing) {
                    return
                  }
                  _vm.$set(_vm.context, "model", $event.target.value);
                }
              }
            },
            "textarea",
            _vm.attributes,
            false
          )
        )
      ]
    )
  };
  var __vue_staticRenderFns__$7 = [];
  __vue_render__$7._withStripped = true;

    /* style */
    var __vue_inject_styles__$7 = undefined;
    /* scoped */
    var __vue_scope_id__$7 = undefined;
    /* module identifier */
    var __vue_module_identifier__$7 = undefined;
    /* functional template */
    var __vue_is_functional_template__$7 = false;
    /* style inject */
    
    /* style inject SSR */
    
    /* style inject shadow dom */
    

    
    var FormulateInputTextArea = normalizeComponent(
      { render: __vue_render__$7, staticRenderFns: __vue_staticRenderFns__$7 },
      __vue_inject_styles__$7,
      __vue_script__$7,
      __vue_scope_id__$7,
      __vue_is_functional_template__$7,
      __vue_module_identifier__$7,
      false,
      undefined,
      undefined,
      undefined
    );

  /**
   * The base formulate library.
   */
  var Formulate = function Formulate () {
    this.defaults = {
      components: {
        FormulateForm: FormulateForm,
        FormulateInput: FormulateInput,
        FormulateInputErrors: FormulateInputErrors,
        FormulateInputBox: FormulateInputBox,
        FormulateInputText: FormulateInputText,
        FormulateInputGroup: FormulateInputGroup,
        FormulateInputSelect: FormulateInputSelect,
        FormulateInputTextArea: FormulateInputTextArea
      },
      library: library,
      rules: rules
    };
  };

  /**
   * Install vue formulate, and register it’s components.
   */
  Formulate.prototype.install = function install (Vue, options) {
    Vue.prototype.$formulate = this;
    this.options = this.extend(this.defaults, options || {});
    for (var componentName in this.options.components) {
      Vue.component(componentName, this.options.components[componentName]);
    }
    Object.freeze(this);
  };

  /**
   * Create a new object by copying properties of base and extendWith.
   * @param {Object} base
   * @param {Object} extendWith
   */
  Formulate.prototype.extend = function extend (base, extendWith) {
    var merged = {};
    for (var key in base) {
      if (extendWith.hasOwnProperty(key)) {
        merged[key] = isPlainObject(extendWith[key]) && isPlainObject(base[key])
          ? this.extend(base[key], extendWith[key])
          : extendWith[key];
      } else {
        merged[key] = base[key];
      }
    }
    for (var prop in extendWith) {
      if (!merged.hasOwnProperty(prop)) {
        merged[prop] = extendWith[prop];
      }
    }
    return merged
  };

  /**
   * Determine what "class" of input this element is given the "type".
   * @param {string} type
   */
  Formulate.prototype.classify = function classify (type) {
    if (this.options.library.hasOwnProperty(type)) {
      return this.options.library[type].classification
    }
    return 'unknown'
  };

  /**
   * Determine what type of component to render given the "type".
   * @param {string} type
   */
  Formulate.prototype.component = function component (type) {
    if (this.options.library.hasOwnProperty(type)) {
      return this.options.library[type].component
    }
    return false
  };

  /**
   * Get validation rules.
   * @return {object} object of validation functions
   */
  Formulate.prototype.rules = function rules () {
    return this.options.rules
  };

  var Formulate$1 = new Formulate();

  exports.default = Formulate$1;

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

})));