@cw-devops/bk-magic-vue/lib/store.js

基于蓝鲸 Magicbox 和 Vue 的前端组件库

(function (global, factory) {
  typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('vue')) :
  typeof define === 'function' && define.amd ? define(['exports', 'vue'], factory) :
  (global = global || self, factory(global.library = {}, global.Vue));
}(this, function (exports, Vue) { 'use strict';

  Vue = Vue && Vue.hasOwnProperty('default') ? Vue['default'] : Vue;

  var _defined = function (it) {
    if (it == undefined) throw TypeError("Can't call method on  " + it);
    return it;
  };

  var _toObject = function (it) {
    return Object(_defined(it));
  };

  var hasOwnProperty = {}.hasOwnProperty;
  var _has = function (it, key) {
    return hasOwnProperty.call(it, key);
  };

  var toString = {}.toString;
  var _cof = function (it) {
    return toString.call(it).slice(8, -1);
  };

  var _iobject = Object('z').propertyIsEnumerable(0) ? Object : function (it) {
    return _cof(it) == 'String' ? it.split('') : Object(it);
  };

  var _toIobject = function (it) {
    return _iobject(_defined(it));
  };

  var ceil = Math.ceil;
  var floor = Math.floor;
  var _toInteger = function (it) {
    return isNaN(it = +it) ? 0 : (it > 0 ? floor : ceil)(it);
  };

  var min = Math.min;
  var _toLength = function (it) {
    return it > 0 ? min(_toInteger(it), 0x1fffffffffffff) : 0;
  };

  var max = Math.max;
  var min$1 = Math.min;
  var _toAbsoluteIndex = function (index, length) {
    index = _toInteger(index);
    return index < 0 ? max(index + length, 0) : min$1(index, length);
  };

  var _arrayIncludes = function (IS_INCLUDES) {
    return function ($this, el, fromIndex) {
      var O = _toIobject($this);
      var length = _toLength(O.length);
      var index = _toAbsoluteIndex(fromIndex, length);
      var value;
      if (IS_INCLUDES && el != el) while (length > index) {
        value = O[index++];
        if (value != value) return true;
      } else for (;length > index; index++) if (IS_INCLUDES || index in O) {
        if (O[index] === el) return IS_INCLUDES || index || 0;
      } return !IS_INCLUDES && -1;
    };
  };

  function createCommonjsModule(fn, module) {
  	return module = { exports: {} }, fn(module, module.exports), module.exports;
  }

  var _core = createCommonjsModule(function (module) {
  var core = module.exports = { version: '2.6.12' };
  if (typeof __e == 'number') __e = core;
  });
  var _core_1 = _core.version;

  var _global = createCommonjsModule(function (module) {
  var global = module.exports = typeof window != 'undefined' && window.Math == Math
    ? window : typeof self != 'undefined' && self.Math == Math ? self
    : Function('return this')();
  if (typeof __g == 'number') __g = global;
  });

  var _shared = createCommonjsModule(function (module) {
  var SHARED = '__core-js_shared__';
  var store = _global[SHARED] || (_global[SHARED] = {});
  (module.exports = function (key, value) {
    return store[key] || (store[key] = value !== undefined ? value : {});
  })('versions', []).push({
    version: _core.version,
    mode:  'pure' ,
    copyright: '© 2020 Denis Pushkarev (zloirock.ru)'
  });
  });

  var id = 0;
  var px = Math.random();
  var _uid = function (key) {
    return 'Symbol('.concat(key === undefined ? '' : key, ')_', (++id + px).toString(36));
  };

  var shared = _shared('keys');
  var _sharedKey = function (key) {
    return shared[key] || (shared[key] = _uid(key));
  };

  var arrayIndexOf = _arrayIncludes(false);
  var IE_PROTO = _sharedKey('IE_PROTO');
  var _objectKeysInternal = function (object, names) {
    var O = _toIobject(object);
    var i = 0;
    var result = [];
    var key;
    for (key in O) if (key != IE_PROTO) _has(O, key) && result.push(key);
    while (names.length > i) if (_has(O, key = names[i++])) {
      ~arrayIndexOf(result, key) || result.push(key);
    }
    return result;
  };

  var _enumBugKeys = (
    'constructor,hasOwnProperty,isPrototypeOf,propertyIsEnumerable,toLocaleString,toString,valueOf'
  ).split(',');

  var _objectKeys = Object.keys || function keys(O) {
    return _objectKeysInternal(O, _enumBugKeys);
  };

  var _aFunction = function (it) {
    if (typeof it != 'function') throw TypeError(it + ' is not a function!');
    return it;
  };

  var _ctx = function (fn, that, length) {
    _aFunction(fn);
    if (that === undefined) return fn;
    switch (length) {
      case 1: return function (a) {
        return fn.call(that, a);
      };
      case 2: return function (a, b) {
        return fn.call(that, a, b);
      };
      case 3: return function (a, b, c) {
        return fn.call(that, a, b, c);
      };
    }
    return function () {
      return fn.apply(that, arguments);
    };
  };

  var _isObject = function (it) {
    return typeof it === 'object' ? it !== null : typeof it === 'function';
  };

  var _anObject = function (it) {
    if (!_isObject(it)) throw TypeError(it + ' is not an object!');
    return it;
  };

  var _fails = function (exec) {
    try {
      return !!exec();
    } catch (e) {
      return true;
    }
  };

  var _descriptors = !_fails(function () {
    return Object.defineProperty({}, 'a', { get: function () { return 7; } }).a != 7;
  });

  var document = _global.document;
  var is = _isObject(document) && _isObject(document.createElement);
  var _domCreate = function (it) {
    return is ? document.createElement(it) : {};
  };

  var _ie8DomDefine = !_descriptors && !_fails(function () {
    return Object.defineProperty(_domCreate('div'), 'a', { get: function () { return 7; } }).a != 7;
  });

  var _toPrimitive = function (it, S) {
    if (!_isObject(it)) return it;
    var fn, val;
    if (S && typeof (fn = it.toString) == 'function' && !_isObject(val = fn.call(it))) return val;
    if (typeof (fn = it.valueOf) == 'function' && !_isObject(val = fn.call(it))) return val;
    if (!S && typeof (fn = it.toString) == 'function' && !_isObject(val = fn.call(it))) return val;
    throw TypeError("Can't convert object to primitive value");
  };

  var dP = Object.defineProperty;
  var f = _descriptors ? Object.defineProperty : function defineProperty(O, P, Attributes) {
    _anObject(O);
    P = _toPrimitive(P, true);
    _anObject(Attributes);
    if (_ie8DomDefine) try {
      return dP(O, P, Attributes);
    } catch (e) {  }
    if ('get' in Attributes || 'set' in Attributes) throw TypeError('Accessors not supported!');
    if ('value' in Attributes) O[P] = Attributes.value;
    return O;
  };
  var _objectDp = {
  	f: f
  };

  var _propertyDesc = function (bitmap, value) {
    return {
      enumerable: !(bitmap & 1),
      configurable: !(bitmap & 2),
      writable: !(bitmap & 4),
      value: value
    };
  };

  var _hide = _descriptors ? function (object, key, value) {
    return _objectDp.f(object, key, _propertyDesc(1, value));
  } : function (object, key, value) {
    object[key] = value;
    return object;
  };

  var PROTOTYPE = 'prototype';
  var $export = function (type, name, source) {
    var IS_FORCED = type & $export.F;
    var IS_GLOBAL = type & $export.G;
    var IS_STATIC = type & $export.S;
    var IS_PROTO = type & $export.P;
    var IS_BIND = type & $export.B;
    var IS_WRAP = type & $export.W;
    var exports = IS_GLOBAL ? _core : _core[name] || (_core[name] = {});
    var expProto = exports[PROTOTYPE];
    var target = IS_GLOBAL ? _global : IS_STATIC ? _global[name] : (_global[name] || {})[PROTOTYPE];
    var key, own, out;
    if (IS_GLOBAL) source = name;
    for (key in source) {
      own = !IS_FORCED && target && target[key] !== undefined;
      if (own && _has(exports, key)) continue;
      out = own ? target[key] : source[key];
      exports[key] = IS_GLOBAL && typeof target[key] != 'function' ? source[key]
      : IS_BIND && own ? _ctx(out, _global)
      : IS_WRAP && target[key] == out ? (function (C) {
        var F = function (a, b, c) {
          if (this instanceof C) {
            switch (arguments.length) {
              case 0: return new C();
              case 1: return new C(a);
              case 2: return new C(a, b);
            } return new C(a, b, c);
          } return C.apply(this, arguments);
        };
        F[PROTOTYPE] = C[PROTOTYPE];
        return F;
      })(out) : IS_PROTO && typeof out == 'function' ? _ctx(Function.call, out) : out;
      if (IS_PROTO) {
        (exports.virtual || (exports.virtual = {}))[key] = out;
        if (type & $export.R && expProto && !expProto[key]) _hide(expProto, key, out);
      }
    }
  };
  $export.F = 1;
  $export.G = 2;
  $export.S = 4;
  $export.P = 8;
  $export.B = 16;
  $export.W = 32;
  $export.U = 64;
  $export.R = 128;
  var _export = $export;

  var _objectSap = function (KEY, exec) {
    var fn = (_core.Object || {})[KEY] || Object[KEY];
    var exp = {};
    exp[KEY] = exec(fn);
    _export(_export.S + _export.F * _fails(function () { fn(1); }), 'Object', exp);
  };

  _objectSap('keys', function () {
    return function keys(it) {
      return _objectKeys(_toObject(it));
    };
  });

  var keys = _core.Object.keys;

  var keys$1 = keys;

  var _isArray = Array.isArray || function isArray(arg) {
    return _cof(arg) == 'Array';
  };

  _export(_export.S, 'Array', { isArray: _isArray });

  var isArray = _core.Array.isArray;

  var isArray$1 = isArray;

  function merge (target) {
    for (var i = 1, j = arguments.length; i < j; i++) {
      var source = arguments[i] || {};
      for (var prop in source) {
        if (source.hasOwnProperty(prop)) {
          var value = source[prop];
          if (value !== undefined) {
            target[prop] = value;
          }
        }
      }
    }
    return target;
  }

  var _stringWs = '\x09\x0A\x0B\x0C\x0D\x20\xA0\u1680\u180E\u2000\u2001\u2002\u2003' +
    '\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000\u2028\u2029\uFEFF';

  var space = '[' + _stringWs + ']';
  var non = '\u200b\u0085';
  var ltrim = RegExp('^' + space + space + '*');
  var rtrim = RegExp(space + space + '*$');
  var exporter = function (KEY, exec, ALIAS) {
    var exp = {};
    var FORCE = _fails(function () {
      return !!_stringWs[KEY]() || non[KEY]() != non;
    });
    var fn = exp[KEY] = FORCE ? exec(trim) : _stringWs[KEY];
    if (ALIAS) exp[ALIAS] = fn;
    _export(_export.P + _export.F * FORCE, 'String', exp);
  };
  var trim = exporter.trim = function (string, TYPE) {
    string = String(_defined(string));
    if (TYPE & 1) string = string.replace(ltrim, '');
    if (TYPE & 2) string = string.replace(rtrim, '');
    return string;
  };
  var _stringTrim = exporter;

  var $parseInt = _global.parseInt;
  var $trim = _stringTrim.trim;
  var hex = /^[-+]?0[xX]/;
  var _parseInt = $parseInt(_stringWs + '08') !== 8 || $parseInt(_stringWs + '0x16') !== 22 ? function parseInt(str, radix) {
    var string = $trim(String(str), 3);
    return $parseInt(string, (radix >>> 0) || (hex.test(string) ? 16 : 10));
  } : $parseInt;

  _export(_export.G + _export.F * (parseInt != _parseInt), { parseInt: _parseInt });

  var _parseInt$1 = _core.parseInt;

  var $JSON = _core.JSON || (_core.JSON = { stringify: JSON.stringify });

  function _typeof(o) {
    "@babel/helpers - typeof";

    return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (o) {
      return typeof o;
    } : function (o) {
      return o && "function" == typeof Symbol && o.constructor === Symbol && o !== Symbol.prototype ? "symbol" : typeof o;
    }, _typeof(o);
  }
  function _defineProperty(obj, key, value) {
    key = _toPropertyKey(key);
    if (key in obj) {
      Object.defineProperty(obj, key, {
        value: value,
        enumerable: true,
        configurable: true,
        writable: true
      });
    } else {
      obj[key] = value;
    }
    return obj;
  }
  function _objectSpread(target) {
    for (var i = 1; i < arguments.length; i++) {
      var source = arguments[i] != null ? Object(arguments[i]) : {};
      var ownKeys = Object.keys(source);
      if (typeof Object.getOwnPropertySymbols === 'function') {
        ownKeys.push.apply(ownKeys, Object.getOwnPropertySymbols(source).filter(function (sym) {
          return Object.getOwnPropertyDescriptor(source, sym).enumerable;
        }));
      }
      ownKeys.forEach(function (key) {
        _defineProperty(target, key, source[key]);
      });
    }
    return target;
  }
  function _toPrimitive$1(input, hint) {
    if (typeof input !== "object" || input === null) return input;
    var prim = input[Symbol.toPrimitive];
    if (prim !== undefined) {
      var res = prim.call(input, hint || "default");
      if (typeof res !== "object") return res;
      throw new TypeError("@@toPrimitive must return a primitive value.");
    }
    return (hint === "string" ? String : Number)(input);
  }
  function _toPropertyKey(arg) {
    var key = _toPrimitive$1(arg, "string");
    return typeof key === "symbol" ? key : String(key);
  }

  var getValueByPath = function getValueByPath(object, prop) {
    prop = prop || '';
    var paths = prop.split('.');
    var current = object;
    var result = null;
    for (var i = 0, j = paths.length; i < j; i++) {
      var path = paths[i];
      if (!current) break;
      if (i === j - 1) {
        result = current[path];
        break;
      }
      current = current[path];
    }
    return result;
  };
  var arrayFindIndex = function arrayFindIndex(arr, pred) {
    for (var i = 0; i !== arr.length; ++i) {
      if (pred(arr[i])) {
        return i;
      }
    }
    return -1;
  };
  var arrayFind = function arrayFind(arr, pred) {
    var idx = arrayFindIndex(arr, pred);
    return idx !== -1 ? arr[idx] : undefined;
  };
  var isObject = function isObject(obj) {
    return obj !== null && _typeof(obj) === 'object';
  };
  var orderBy = function orderBy(array, sortKey, reverse, sortMethod, sortBy) {
    if (!sortKey && !sortMethod && (!sortBy || isArray$1(sortBy)) && !sortBy.length) {
      return array;
    }
    if (typeof reverse === 'string') {
      reverse = reverse === 'descending' ? -1 : 1;
    } else {
      reverse = reverse && reverse < 0 ? -1 : 1;
    }
    var getKey = sortMethod ? null : function (value, index) {
      if (sortBy) {
        if (!isArray$1(sortBy)) {
          sortBy = [sortBy];
        }
        return sortBy.map(function (by) {
          if (typeof by === 'string') {
            return getValueByPath(value, by);
          } else {
            return by(value, index, array);
          }
        });
      }
      if (sortKey !== '$key') {
        if (isObject(value) && '$value' in value) value = value.$value;
      }
      return [isObject(value) ? getValueByPath(value, sortKey) : value];
    };
    var compare = function compare(a, b) {
      if (sortMethod) {
        return sortMethod(a.value, b.value);
      }
      for (var i = 0, len = a.key.length; i < len; i++) {
        if (a.key[i] < b.key[i]) {
          return -1;
        }
        if (a.key[i] > b.key[i]) {
          return 1;
        }
      }
      return 0;
    };
    return array.map(function (value, index) {
      return {
        value: value,
        index: index,
        key: getKey ? getKey(value, index) : null
      };
    }).sort(function (a, b) {
      var order = compare(a, b);
      if (!order) {
        order = a.index - b.index;
      }
      return order * reverse;
    }).map(function (item) {
      return item.value;
    });
  };
  var getColumnById = function getColumnById(table, columnId) {
    var column = null;
    table.columns.forEach(function (item) {
      if (item.id === columnId) {
        column = item;
      }
    });
    return column;
  };
  var getColumnByKey = function getColumnByKey(table, columnKey) {
    var column = null;
    for (var i = 0; i < table.columns.length; i++) {
      var item = table.columns[i];
      if (item.columnKey === columnKey) {
        column = item;
        break;
      }
    }
    return column;
  };
  var getRowIdentity = function getRowIdentity(row, rowKey) {
    if (!row) throw new Error('row is required when get row identity');
    if (typeof rowKey === 'string') {
      if (rowKey.indexOf('.') < 0) {
        return row[rowKey];
      }
      var key = rowKey.split('.');
      var current = row;
      for (var i = 0; i < key.length; i++) {
        current = current[key[i]];
      }
      return current;
    } else if (typeof rowKey === 'function') {
      return rowKey.call(null, row);
    }
  };
  var getKeysMap = function getKeysMap(array, rowKey) {
    var arrayMap = {};
    (array || []).forEach(function (row, index) {
      arrayMap[getRowIdentity(row, rowKey)] = {
        row: row,
        index: index
      };
    });
    return arrayMap;
  };
  function toggleRowStatus(statusArr, row, newVal) {
    var changed = false;
    var index = statusArr.indexOf(row);
    var included = index !== -1;
    var addRow = function addRow() {
      statusArr.push(row);
      changed = true;
    };
    var removeRow = function removeRow() {
      statusArr.splice(index, 1);
      changed = true;
    };
    if (typeof newVal === 'boolean') {
      if (newVal && !included) {
        addRow();
      } else if (!newVal && included) {
        removeRow();
      }
    } else {
      if (included) {
        removeRow();
      } else {
        addRow();
      }
    }
    return changed;
  }
  function walkTreeNode(root, cb) {
    var childrenKey = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 'children';
    var lazyKey = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : 'hasChildren';
    var isNil = function isNil(array) {
      return !(isArray$1(array) && array.length);
    };
    function _walker(parent, children, level) {
      cb(parent, children, level);
      children.forEach(function (item) {
        if (item[lazyKey]) {
          cb(item, null, level + 1);
          return;
        }
        var children = item[childrenKey];
        if (!isNil(children)) {
          _walker(item, children, level + 1);
        }
      });
    }
    root.forEach(function (item) {
      if (item[lazyKey]) {
        cb(item, null, 0);
        return;
      }
      var children = item[childrenKey];
      if (!isNil(children)) {
        _walker(item, children, 0);
      }
    });
  }

  var expand = {
    data: function data() {
      return {
        states: {
          defaultExpandAll: false,
          expandRows: []
        }
      };
    },
    methods: {
      updateExpandRows: function updateExpandRows() {
        var _this$states = this.states,
          _this$states$data = _this$states.data,
          data = _this$states$data === void 0 ? [] : _this$states$data,
          rowKey = _this$states.rowKey,
          defaultExpandAll = _this$states.defaultExpandAll,
          expandRows = _this$states.expandRows;
        if (defaultExpandAll) {
          this.states.expandRows = data.slice();
        } else if (rowKey) {
          var expandRowsMap = getKeysMap(expandRows, rowKey);
          this.states.expandRows = data.reduce(function (prev, row) {
            var rowId = getRowIdentity(row, rowKey);
            var rowInfo = expandRowsMap[rowId];
            if (rowInfo) {
              prev.push(row);
            }
            return prev;
          }, []);
        } else {
          this.states.expandRows = [];
        }
      },
      toggleRowExpansion: function toggleRowExpansion(row, expanded) {
        var changed = toggleRowStatus(this.states.expandRows, row, expanded);
        if (changed) {
          this.table.$emit('expand-change', row, this.states.expandRows.slice());
          this.scheduleLayout();
        }
      },
      setExpandRowKeys: function setExpandRowKeys(rowKeys) {
        this.assertRowKey();
        var _this$states2 = this.states,
          data = _this$states2.data,
          rowKey = _this$states2.rowKey;
        var keysMap = getKeysMap(data, rowKey);
        this.states.expandRows = rowKeys.reduce(function (prev, cur) {
          var info = keysMap[cur];
          if (info) {
            prev.push(info.row);
          }
          return prev;
        }, []);
      },
      isRowExpanded: function isRowExpanded(row) {
        var _this$states3 = this.states,
          _this$states3$expandR = _this$states3.expandRows,
          expandRows = _this$states3$expandR === void 0 ? [] : _this$states3$expandR,
          rowKey = _this$states3.rowKey;
        if (rowKey) {
          var expandMap = getKeysMap(expandRows, rowKey);
          return !!expandMap[getRowIdentity(row, rowKey)];
        }
        return expandRows.indexOf(row) !== -1;
      }
    }
  };

  var current = {
    data: function data() {
      return {
        states: {
          _currentRowKey: null,
          currentRow: null
        }
      };
    },
    methods: {
      setCurrentRowKey: function setCurrentRowKey(key) {
        this.assertRowKey();
        this.states._currentRowKey = key;
        this.setCurrentRowByKey(key);
      },
      restoreCurrentRowKey: function restoreCurrentRowKey() {
        this.states._currentRowKey = null;
      },
      setCurrentRowByKey: function setCurrentRowByKey(key) {
        var states = this.states;
        var _states$data = states.data,
          data = _states$data === void 0 ? [] : _states$data,
          rowKey = states.rowKey;
        var currentRow = null;
        if (rowKey) {
          currentRow = arrayFind(data, function (item) {
            return getRowIdentity(item, rowKey) === key;
          });
        }
        states.currentRow = currentRow;
      },
      updateCurrentRow: function updateCurrentRow(currentRow) {
        var states = this.states,
          table = this.table;
        var oldCurrentRow = states.currentRow;
        if (currentRow && currentRow !== oldCurrentRow) {
          states.currentRow = currentRow;
          table.$emit('current-change', currentRow, oldCurrentRow);
          return;
        }
        if (!currentRow && oldCurrentRow) {
          states.currentRow = null;
          table.$emit('current-change', null, oldCurrentRow);
        }
      },
      updateCurrentRowData: function updateCurrentRowData() {
        var states = this.states,
          table = this.table;
        var rowKey = states.rowKey,
          _currentRowKey = states._currentRowKey;
        var data = states.data || [];
        var oldCurrentRow = states.currentRow;
        if (data.indexOf(oldCurrentRow) === -1 && oldCurrentRow) {
          if (rowKey) {
            var currentRowKey = getRowIdentity(oldCurrentRow, rowKey);
            this.setCurrentRowByKey(currentRowKey);
          } else {
            states.currentRow = null;
          }
          if (states.currentRow === null) {
            table.$emit('current-change', null, oldCurrentRow);
          }
        } else if (_currentRowKey) {
          this.setCurrentRowByKey(_currentRowKey);
          this.restoreCurrentRowKey();
        }
      }
    }
  };

  var tree = {
    data: function data() {
      return {
        states: {
          expandRowKeys: [],
          treeData: {},
          indent: 16,
          lazy: false,
          lazyTreeNodeMap: {},
          lazyColumnIdentifier: 'hasChildren',
          childrenColumnName: 'children'
        }
      };
    },
    computed: {
      normalizedData: function normalizedData() {
        if (!this.states.rowKey) return {};
        var data = this.states.data || [];
        return this.normalize(data);
      },
      normalizedLazyNode: function normalizedLazyNode() {
        var _this$states = this.states,
          rowKey = _this$states.rowKey,
          lazyTreeNodeMap = _this$states.lazyTreeNodeMap,
          lazyColumnIdentifier = _this$states.lazyColumnIdentifier;
        var keys = keys$1(lazyTreeNodeMap);
        var res = {};
        if (!keys.length) return res;
        keys.forEach(function (key) {
          if (lazyTreeNodeMap[key].length) {
            var item = {
              children: []
            };
            lazyTreeNodeMap[key].forEach(function (row) {
              var currentRowKey = getRowIdentity(row, rowKey);
              item.children.push(currentRowKey);
              if (row[lazyColumnIdentifier] && !res[currentRowKey]) {
                res[currentRowKey] = {
                  children: []
                };
              }
            });
            res[key] = item;
          }
        });
        return res;
      }
    },
    watch: {
      normalizedData: 'updateTreeData',
      normalizedLazyNode: 'updateTreeData'
    },
    methods: {
      normalize: function normalize(data) {
        var _this$states2 = this.states,
          childrenColumnName = _this$states2.childrenColumnName,
          lazyColumnIdentifier = _this$states2.lazyColumnIdentifier,
          rowKey = _this$states2.rowKey,
          lazy = _this$states2.lazy;
        var res = {};
        walkTreeNode(data, function (parent, children, level) {
          var parentId = getRowIdentity(parent, rowKey);
          if (isArray$1(children)) {
            res[parentId] = {
              children: children.map(function (row) {
                return getRowIdentity(row, rowKey);
              }),
              level: level
            };
          } else if (lazy) {
            res[parentId] = {
              children: [],
              lazy: true,
              level: level
            };
          }
        }, childrenColumnName, lazyColumnIdentifier);
        return res;
      },
      updateTreeData: function updateTreeData() {
        var nested = this.normalizedData;
        var normalizedLazyNode = this.normalizedLazyNode;
        var keys = keys$1(nested);
        var newTreeData = {};
        if (keys.length) {
          var _this$states3 = this.states,
            oldTreeData = _this$states3.treeData,
            defaultExpandAll = _this$states3.defaultExpandAll,
            expandRowKeys = _this$states3.expandRowKeys,
            lazy = _this$states3.lazy;
          var rootLazyRowKeys = [];
          var getExpanded = function getExpanded(oldValue, key) {
            var included = defaultExpandAll || expandRowKeys && expandRowKeys.indexOf(key) !== -1;
            return !!(oldValue && oldValue.expanded || included);
          };
          keys.forEach(function (key) {
            var oldValue = oldTreeData[key];
            var newValue = _objectSpread({}, nested[key]);
            newValue.expanded = getExpanded(oldValue, key);
            if (newValue.lazy) {
              var _ref = oldValue || {},
                _ref$loaded = _ref.loaded,
                loaded = _ref$loaded === void 0 ? false : _ref$loaded,
                _ref$loading = _ref.loading,
                loading = _ref$loading === void 0 ? false : _ref$loading;
              newValue.loaded = !!loaded;
              newValue.loading = !!loading;
              rootLazyRowKeys.push(key);
            }
            newTreeData[key] = newValue;
          });
          var lazyKeys = keys$1(normalizedLazyNode);
          if (lazy && lazyKeys.length && rootLazyRowKeys.length) {
            lazyKeys.forEach(function (key) {
              var oldValue = oldTreeData[key];
              var lazyNodeChildren = normalizedLazyNode[key].children;
              if (rootLazyRowKeys.indexOf(key) !== -1) {
                if (newTreeData[key].children.length !== 0) {
                  throw new Error('[ElTable]children must be an empty array.');
                }
                newTreeData[key].children = lazyNodeChildren;
              } else {
                var _ref2 = oldValue || {},
                  _ref2$loaded = _ref2.loaded,
                  loaded = _ref2$loaded === void 0 ? false : _ref2$loaded,
                  _ref2$loading = _ref2.loading,
                  loading = _ref2$loading === void 0 ? false : _ref2$loading;
                newTreeData[key] = {
                  lazy: true,
                  loaded: !!loaded,
                  loading: !!loading,
                  expanded: getExpanded(oldValue, key),
                  children: lazyNodeChildren,
                  level: ''
                };
              }
            });
          }
        }
        this.states.treeData = newTreeData;
        this.updateTableScrollY();
      },
      updateTreeExpandKeys: function updateTreeExpandKeys(value) {
        this.states.expandRowKeys = value;
        this.updateTreeData();
      },
      toggleTreeExpansion: function toggleTreeExpansion(row, expanded) {
        this.assertRowKey();
        var _this$states4 = this.states,
          rowKey = _this$states4.rowKey,
          treeData = _this$states4.treeData;
        var id = getRowIdentity(row, rowKey);
        var data = id && treeData[id];
        if (id && data && 'expanded' in data) {
          var oldExpanded = data.expanded;
          expanded = typeof expanded === 'undefined' ? !data.expanded : expanded;
          treeData[id].expanded = expanded;
          if (oldExpanded !== expanded) {
            this.table.$emit('expand-change', row, expanded);
          }
          this.updateTableScrollY();
        }
      },
      loadOrToggle: function loadOrToggle(row) {
        this.assertRowKey();
        var _this$states5 = this.states,
          lazy = _this$states5.lazy,
          treeData = _this$states5.treeData,
          rowKey = _this$states5.rowKey;
        var id = getRowIdentity(row, rowKey);
        var data = treeData[id];
        if (lazy && data && 'loaded' in data && !data.loaded) {
          this.loadData(row, id, data);
        } else {
          this.toggleTreeExpansion(row);
        }
      },
      loadData: function loadData(row, key, treeNode) {
        var _this = this;
        var load = this.table.load;
        var rawTreeData = this.states.treeData;
        if (load && !rawTreeData[key].loaded) {
          rawTreeData[key].loading = true;
          load(row, treeNode, function (data) {
            if (!isArray$1(data)) {
              throw new Error('[ElTable] data must be an array');
            }
            var _this$states6 = _this.states,
              lazyTreeNodeMap = _this$states6.lazyTreeNodeMap,
              treeData = _this$states6.treeData;
            treeData[key].loading = false;
            treeData[key].loaded = true;
            treeData[key].expanded = true;
            if (data.length) {
              _this.$set(lazyTreeNodeMap, key, data);
            }
            _this.table.$emit('expand-change', row, true);
          });
        }
      }
    }
  };

  var sortData = function sortData(data, states) {
    var sortingColumn = states.sortingColumn;
    if (!sortingColumn || typeof sortingColumn.sortable === 'string') {
      return data;
    }
    return orderBy(data, states.sortProp, states.sortOrder, sortingColumn.sortMethod, sortingColumn.sortBy);
  };
  var doFlattenColumns = function doFlattenColumns(columns) {
    var result = [];
    columns.forEach(function (column) {
      if (column.children) {
        result.push.apply(result, doFlattenColumns(column.children));
      } else {
        result.push(column);
      }
    });
    return result;
  };
  var Watcher = Vue.extend({
    mixins: [expand, current, tree],
    data: function data() {
      return {
        states: {
          rowKey: null,
          data: [],
          isComplex: false,
          _columns: [],
          originColumns: [],
          columns: [],
          fixedColumns: [],
          rightFixedColumns: [],
          leafColumns: [],
          fixedLeafColumns: [],
          rightFixedLeafColumns: [],
          leafColumnsLength: 0,
          fixedLeafColumnsLength: 0,
          rightFixedLeafColumnsLength: 0,
          isAllSelected: false,
          selection: [],
          reserveSelection: false,
          selectOnIndeterminate: false,
          selectable: null,
          filters: {},
          filteredData: null,
          sortingColumn: null,
          sortProp: null,
          sortOrder: null,
          hoverRow: null
        }
      };
    },
    methods: {
      assertRowKey: function assertRowKey() {
        var rowKey = this.states.rowKey;
        if (!rowKey) throw new Error('[ElTable] prop row-key is required');
      },
      updateColumns: function updateColumns() {
        var states = this.states;
        var _columns = states._columns || [];
        states.fixedColumns = _columns.filter(function (column) {
          return column.fixed === true || column.fixed === 'left';
        });
        states.rightFixedColumns = _columns.filter(function (column) {
          return column.fixed === 'right';
        });
        if (states.fixedColumns.length > 0 && _columns[0] && _columns[0].type === 'selection' && !_columns[0].fixed) {
          _columns[0].fixed = true;
          states.fixedColumns.unshift(_columns[0]);
        }
        var notFixedColumns = _columns.filter(function (column) {
          return !column.fixed;
        });
        states.originColumns = [].concat(states.fixedColumns).concat(notFixedColumns).concat(states.rightFixedColumns);
        var leafColumns = doFlattenColumns(notFixedColumns);
        var fixedLeafColumns = doFlattenColumns(states.fixedColumns);
        var rightFixedLeafColumns = doFlattenColumns(states.rightFixedColumns);
        states.leafColumnsLength = leafColumns.length;
        states.fixedLeafColumnsLength = fixedLeafColumns.length;
        states.rightFixedLeafColumnsLength = rightFixedLeafColumns.length;
        states.columns = [].concat(fixedLeafColumns).concat(leafColumns).concat(rightFixedLeafColumns);
        states.isComplex = states.fixedColumns.length > 0 || states.rightFixedColumns.length > 0;
      },
      scheduleLayout: function scheduleLayout(needUpdateColumns) {
        if (needUpdateColumns) {
          this.updateColumns();
        }
        this.table.debouncedUpdateLayout();
      },
      isSelected: function isSelected(row) {
        var _this$states$selectio = this.states.selection,
          selection = _this$states$selectio === void 0 ? [] : _this$states$selectio;
        return selection.indexOf(row) > -1;
      },
      clearSelection: function clearSelection() {
        var states = this.states;
        states.isAllSelected = false;
        var oldSelection = states.selection;
        if (oldSelection.length) {
          states.selection = [];
          this.table.$emit('selection-change', []);
        }
      },
      cleanSelection: function cleanSelection() {
        var states = this.states;
        var data = states.data,
          rowKey = states.rowKey,
          selection = states.selection;
        var deleted;
        if (rowKey) {
          deleted = [];
          var selectedMap = getKeysMap(selection, rowKey);
          var dataMap = getKeysMap(data, rowKey);
          for (var key in selectedMap) {
            if (selectedMap.hasOwnProperty(key) && !dataMap[key]) {
              deleted.push(selectedMap[key].row);
            }
          }
        } else {
          deleted = selection.filter(function (item) {
            return data.indexOf(item) === -1;
          });
        }
        if (deleted.length) {
          var newSelection = selection.filter(function (item) {
            return deleted.indexOf(item) === -1;
          });
          states.selection = newSelection;
          this.table.$emit('selection-change', newSelection.slice());
        }
      },
      toggleRowSelection: function toggleRowSelection(row, selected) {
        var emitChange = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : true;
        var changed = toggleRowStatus(this.states.selection, row, selected);
        if (changed) {
          var newSelection = (this.states.selection || []).slice();
          if (emitChange) {
            this.table.$emit('select', newSelection, row);
          }
          this.table.$emit('selection-change', newSelection);
        }
      },
      _toggleAllSelection: function _toggleAllSelection() {
        var states = this.states;
        var _states$data = states.data,
          data = _states$data === void 0 ? [] : _states$data,
          selection = states.selection;
        var value = states.selectOnIndeterminate ? !states.isAllSelected : !(states.isAllSelected || selection.length);
        states.isAllSelected = value;
        var selectionChanged = false;
        data.forEach(function (row, index) {
          if (states.selectable) {
            if (states.selectable.call(null, row, index) && toggleRowStatus(selection, row, value)) {
              selectionChanged = true;
            }
          } else {
            if (toggleRowStatus(selection, row, value)) {
              selectionChanged = true;
            }
          }
        });
        if (selectionChanged) {
          this.table.$emit('selection-change', selection ? selection.slice() : []);
        }
        this.table.$emit('select-all', selection);
      },
      updateSelectionByRowKey: function updateSelectionByRowKey() {
        var states = this.states;
        var selection = states.selection,
          rowKey = states.rowKey,
          data = states.data;
        var selectedMap = getKeysMap(selection, rowKey);
        data.forEach(function (row) {
          var rowId = getRowIdentity(row, rowKey);
          var rowInfo = selectedMap[rowId];
          if (rowInfo) {
            selection[rowInfo.index] = row;
          }
        });
      },
      updateAllSelected: function updateAllSelected() {
        var states = this.states;
        var selection = states.selection,
          rowKey = states.rowKey,
          selectable = states.selectable;
        var data = states.data || [];
        if (data.length === 0) {
          states.isAllSelected = false;
          return;
        }
        var selectedMap;
        if (rowKey) {
          selectedMap = getKeysMap(selection, rowKey);
        }
        var isSelected = function isSelected(row) {
          if (selectedMap) {
            return !!selectedMap[getRowIdentity(row, rowKey)];
          } else {
            return selection.indexOf(row) !== -1;
          }
        };
        var isAllSelected = true;
        var selectedCount = 0;
        for (var i = 0, j = data.length; i < j; i++) {
          var item = data[i];
          var isRowSelectable = selectable && selectable.call(null, item, i);
          if (!isSelected(item)) {
            if (!selectable || isRowSelectable) {
              isAllSelected = false;
              break;
            }
          } else {
            selectedCount++;
          }
        }
        if (selectedCount === 0) isAllSelected = false;
        states.isAllSelected = isAllSelected;
      },
      updateFilters: function updateFilters(columns, values) {
        if (!isArray$1(columns)) {
          columns = [columns];
        }
        var states = this.states;
        var filters = {};
        columns.forEach(function (col) {
          states.filters[col.id] = values;
          filters[col.columnKey || col.id] = values;
        });
        return filters;
      },
      updateSort: function updateSort(column, prop, order) {
        if (this.states.sortingColumn && this.states.sortingColumn !== column) {
          this.states.sortingColumn.order = null;
        }
        this.states.sortingColumn = column;
        this.states.sortProp = prop;
        this.states.sortOrder = order;
      },
      execFilter: function execFilter() {
        var _this = this;
        var states = this.states;
        var _data = states._data,
          filters = states.filters;
        var data = _data;
        keys$1(filters).forEach(function (columnId) {
          var values = states.filters[columnId];
          if (!values || values.length === 0) return;
          var column = getColumnById(_this.states, columnId);
          if (column && column.filterMethod) {
            data = data.filter(function (row) {
              return values.some(function (value) {
                return column.filterMethod.call(null, value, row, column);
              });
            });
          }
        });
        states.filteredData = data;
      },
      execSort: function execSort() {
        var states = this.states;
        states.data = sortData(states.filteredData, states);
      },
      execQuery: function execQuery(ignore) {
        if (!(ignore && ignore.filter)) {
          this.execFilter();
        }
        this.execSort();
      },
      clearFilter: function clearFilter(columnKeys) {
        var states = this.states;
        var _this$table$$refs = this.table.$refs,
          tableHeader = _this$table$$refs.tableHeader,
          fixedTableHeader = _this$table$$refs.fixedTableHeader,
          rightFixedTableHeader = _this$table$$refs.rightFixedTableHeader;
        var panels = {};
        if (tableHeader) panels = merge(panels, tableHeader.filterPanels);
        if (fixedTableHeader) panels = merge(panels, fixedTableHeader.filterPanels);
        if (rightFixedTableHeader) panels = merge(panels, rightFixedTableHeader.filterPanels);
        var keys = keys$1(panels);
        if (!keys.length) return;
        if (typeof columnKeys === 'string') {
          columnKeys = [columnKeys];
        }
        if (isArray$1(columnKeys)) {
          var columns = columnKeys.map(function (key) {
            return getColumnByKey(states, key);
          });
          keys.forEach(function (key) {
            var column = columns.find(function (col) {
              return col.id === key;
            });
            if (column) {
              panels[key].filteredValue = [];
            }
          });
          this.commit('filterChange', {
            column: columns,
            values: [],
            silent: true,
            multi: true
          });
        } else {
          keys.forEach(function (key) {
            panels[key].filteredValue = [];
          });
          states.filters = {};
          this.commit('filterChange', {
            column: {},
            values: [],
            silent: true
          });
        }
      },
      clearSort: function clearSort() {
        var states = this.states;
        if (!states.sortingColumn) return;
        this.updateSort(null, null, null);
        this.commit('changeSortCondition', {
          silent: true
        });
      },
      setExpandRowKeysAdapter: function setExpandRowKeysAdapter(val) {
        this.setExpandRowKeys(val);
        this.updateTreeExpandKeys(val);
      },
      toggleRowExpansionAdapter: function toggleRowExpansionAdapter(row, expanded) {
        var hasExpandColumn = this.states.columns.some(function (_ref) {
          var type = _ref.type;
          return type === 'expand';
        });
        if (hasExpandColumn) {
          this.toggleRowExpansion(row, expanded);
        } else {
          this.toggleTreeExpansion(row, expanded);
        }
      }
    }
  });

  Watcher.prototype.mutations = {
    setData: function setData(states, data) {
      var dataInstanceChanged = states._data !== data;
      states._data = data;
      this.execQuery();
      this.updateCurrentRowData();
      this.updateExpandRows();
      if (states.reserveSelection) {
        this.assertRowKey();
        this.updateSelectionByRowKey();
      } else {
        if (dataInstanceChanged) {
          this.clearSelection();
        } else {
          this.cleanSelection();
        }
      }
      this.updateAllSelected();
      this.updateTableScrollY();
    },
    insertColumn: function insertColumn(states, column, index, parent) {
      var array = states._columns;
      if (parent) {
        array = parent.children;
        if (!array) array = parent.children = [];
      }
      if (typeof index !== 'undefined') {
        array.splice(index, 0, column);
      } else {
        array.push(column);
      }
      if (column.type === 'selection') {
        states.selectable = column.selectable;
        states.reserveSelection = column.reserveSelection;
      }
      if (this.table.$ready) {
        this.updateColumns();
        this.scheduleLayout();
      }
    },
    removeColumn: function removeColumn(states, column, parent) {
      var array = states._columns;
      if (parent) {
        array = parent.children;
        if (!array) array = parent.children = [];
      }
      if (array) {
        array.splice(array.indexOf(column), 1);
      }
      if (this.table.$ready) {
        this.updateColumns();
        this.scheduleLayout();
      }
    },
    sort: function sort(states, options) {
      var prop = options.prop,
        order = options.order,
        init = options.init;
      if (prop) {
        var column = arrayFind(states.columns, function (column) {
          return column.property === prop;
        });
        if (column) {
          column.order = order;
          this.updateSort(column, prop, order);
          this.commit('changeSortCondition', {
            init: init
          });
        }
      }
    },
    changeSortCondition: function changeSortCondition(states, options) {
      var column = states.sortingColumn,
        prop = states.sortProp,
        order = states.sortOrder;
      if (order === null) {
        states.sortingColumn = null;
        states.sortProp = null;
      }
      var ingore = {
        filter: true
      };
      this.execQuery(ingore);
      if (!options || !(options.silent || options.init)) {
        this.table.$emit('sort-change', {
          column: column,
          prop: prop,
          order: order
        });
      }
      this.updateTableScrollY();
    },
    filterChange: function filterChange(states, options) {
      var column = options.column,
        values = options.values,
        silent = options.silent;
      var newFilters = this.updateFilters(column, values);
      this.execQuery();
      if (!silent) {
        this.table.$emit('filter-change', newFilters);
      }
      this.updateTableScrollY();
    },
    toggleAllSelection: function toggleAllSelection() {
      this.toggleAllSelection();
    },
    rowSelectedChanged: function rowSelectedChanged(states, row) {
      this.toggleRowSelection(row);
      this.updateAllSelected();
    },
    setHoverRow: function setHoverRow(states, row) {
      states.hoverRow = row;
    },
    setCurrentRow: function setCurrentRow(states, row) {
      this.updateCurrentRow(row);
    }
  };
  Watcher.prototype.commit = function (name) {
    var mutations = this.mutations;
    if (mutations[name]) {
      for (var _len = arguments.length, args = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
        args[_key - 1] = arguments[_key];
      }
      mutations[name].apply(this, [this.states].concat(args));
    } else {
      throw new Error("Action not found: ".concat(name));
    }
  };
  Watcher.prototype.updateTableScrollY = function () {
    Vue.nextTick(this.table.updateScrollY);
  };

  exports.default = Watcher;

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

}));