bee-table/build/utils.js

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.Event = exports.tryParseInt = undefined;

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

exports.measureScrollbar = measureScrollbar;
exports.debounce = debounce;
exports.warningOnce = warningOnce;
exports.addClass = addClass;
exports.removeClass = removeClass;
exports.ObjectAssign = ObjectAssign;
exports.closest = closest;
exports.getMaxColChildrenLength = getMaxColChildrenLength;
exports.getColChildrenLength = getColChildrenLength;

var _warning = require('warning');

var _warning2 = _interopRequireDefault(_warning);

var _parseInt = require('lodash/parseInt');

var _parseInt2 = _interopRequireDefault(_parseInt);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

var scrollbarSize = void 0;

// Measure scrollbar width for padding body during modal show/hide
var scrollbarMeasure = {
  position: 'absolute',
  top: '-9999px',
  width: '50px',
  height: '50px',
  overflow: 'scroll'
};

function measureScrollbar() {
  var direction = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 'vertical';

  if (typeof document === 'undefined' || typeof window === 'undefined') {
    return 0;
  }
  if (scrollbarSize) {
    return scrollbarSize;
  }
  var scrollDiv = document.createElement('div');
  Object.keys(scrollbarMeasure).forEach(function (scrollProp) {
    scrollDiv.style[scrollProp] = scrollbarMeasure[scrollProp];
  });
  document.body.appendChild(scrollDiv);
  var size = 0;
  if (direction === 'vertical') {
    size = scrollDiv.offsetWidth - scrollDiv.clientWidth;
  } else if (direction === 'horizontal') {
    size = scrollDiv.offsetHeight - scrollDiv.clientHeight;
  }

  document.body.removeChild(scrollDiv);
  scrollbarSize = size;
  return scrollbarSize;
}

function debounce(func, wait, immediate) {
  var timeout = void 0;
  return function debounceFunc() {
    var context = this;
    var args = arguments;
    // https://fb.me/react-event-pooling
    if (args[0] && args[0].persist) {
      args[0].persist();
    }
    var later = function later() {
      timeout = null;
      if (!immediate) {
        func.apply(context, args);
      }
    };
    var callNow = immediate && !timeout;
    clearTimeout(timeout);
    timeout = setTimeout(later, wait);
    if (callNow) {
      func.apply(context, args);
    }
  };
}

var warned = {};
function warningOnce(condition, format, args) {
  if (!warned[format]) {
    (0, _warning2["default"])(condition, format, args);
    warned[format] = true;
  }
}

var tryParseInt = exports.tryParseInt = function tryParseInt(value) {
  var defaultValue = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 0;

  var resultValue = (0, _parseInt2["default"])(value);

  if (isNaN(resultValue)) {
    return defaultValue;
  }
  return resultValue;
};

function addClass(elm, className) {
  if (!className) return;

  var els = Array.isArray(elm) ? elm : [elm];

  els.forEach(function (el) {
    if (el.classList) {
      el.classList.add(className.split(' '));
    } else {
      el.className += ' ' + className;
    }
  });
}

function removeClass(elm, className) {
  if (!className) return;

  var els = Array.isArray(elm) ? elm : [elm];

  els.forEach(function (el) {
    if (el.classList) {
      el.classList.remove(className.split(' '));
    } else {
      el.className = el.className.replace(new RegExp('(^|\\b)' + className.split(' ').join('|') + '(\\b|$)', 'gi'), ' ');
    }
  });
}

/**
 * 简单数组数据对象拷贝
 * @param {*} obj 要拷贝的对象 
 */
function ObjectAssign(obj) {
  var b = obj instanceof Array;
  var tagObj = b ? [] : {};
  if (b) {
    //数组
    obj.forEach(function (da) {
      var _da = {};
      _extends(_da, da);
      tagObj.push(_da);
    });
  } else {
    _extends(tagObj, obj);
  }
  return tagObj;
}
/**
 * 获取某个父元素
 * */

function closest(ele, selector) {
  var matches = ele.matches || ele.webkitMatchesSelector || ele.mozMatchesSelector || ele.msMatchesSelector;
  if (matches) {
    while (ele) {
      if (matches.call(ele, selector)) {
        return ele;
      } else {
        ele = ele.parentElement;
      }
    }
  }
  return null;
}

function getMaxColChildrenLength(columns) {
  var arr = [];
  arr = columns.map(function (item, index) {
    var chilrenLen = 0;
    if (item.children) {
      chilrenLen = getColChildrenLength(item.children, chilrenLen + 1);
    }
    return chilrenLen;
  });
  var max = Math.max.apply(null, arr);
  return max;
}

function getColChildrenLength(columns, chilrenLen) {
  columns.forEach(function (item, index) {
    if (item.children) {
      chilrenLen = getColChildrenLength(item.children, chilrenLen + 1);
    }
  });
  return chilrenLen;
}

function addHandler(element, type, handler) {

  if (element.addEventListener) {
    //检测是否为DOM2级方法
    element.addEventListener(type, handler, false);
  } else if (element.attachEvent) {
    //检测是否为IE级方法
    element.attachEvent("on" + type, handler);
  } else {
    //检测是否为DOM0级方法
    element["on" + type] = handler;
  }
}

function removeHandler(element, type, handler) {
  if (element.removeEventListener) {
    element.removeEventListener(type, handler, false);
  } else if (element.detachEvent) {
    element.detachEvent("on" + type, handler);
  } else {
    element["on" + type] = null;
  }
}

//获取事件对象的兼容性写法
function getEvent(event) {
  return event ? event : window.event;
}

//获取事件对象目标的兼容性写法
function getTarget(event) {
  return event.target || event.srcElement;
}

function preventDefault(event) {
  if (event.preventDefault) {
    event.preventDefault();
  } else {
    event.returnValue = false;
  }
}

function stopPropagation(event) {
  if (event.stopPropagation) {
    event.stopPropagation();
  } else {
    event.cancelBubble = true;
  }
}

var Event = exports.Event = {
  addHandler: addHandler,
  removeHandler: removeHandler,
  getEvent: getEvent,
  getTarget: getTarget,
  preventDefault: preventDefault,
  stopPropagation: stopPropagation
};