props-util.js

import _typeof from 'babel-runtime/helpers/typeof';
import _extends from 'babel-runtime/helpers/extends';
import _slicedToArray from 'babel-runtime/helpers/slicedToArray';
import isPlainObject from 'lodash/isPlainObject';
import classNames from 'classnames';
function getType(fn) {
  var match = fn && fn.toString().match(/^\s*function (\w+)/);
  return match ? match[1] : '';
}

var camelizeRE = /-(\w)/g;
var camelize = function camelize(str) {
  return str.replace(camelizeRE, function (_, c) {
    return c ? c.toUpperCase() : '';
  });
};
var parseStyleText = function parseStyleText() {
  var cssText = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : '';
  var camel = arguments[1];

  var res = {};
  var listDelimiter = /;(?![^(]*\))/g;
  var propertyDelimiter = /:(.+)/;
  cssText.split(listDelimiter).forEach(function (item) {
    if (item) {
      var tmp = item.split(propertyDelimiter);
      if (tmp.length > 1) {
        var k = camel ? camelize(tmp[0].trim()) : tmp[0].trim();
        res[k] = tmp[1].trim();
      }
    }
  });
  return res;
};

var hasProp = function hasProp(instance, prop) {
  var $options = instance.$options || {};
  var propsData = $options.propsData || {};
  return prop in propsData;
};
var slotHasProp = function slotHasProp(slot, prop) {
  var $options = slot.componentOptions || {};
  var propsData = $options.propsData || {};
  return prop in propsData;
};
var filterProps = function filterProps(props) {
  var propsData = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};

  var res = {};
  Object.keys(props).forEach(function (k) {
    if (k in propsData || props[k] !== undefined) {
      res[k] = props[k];
    }
  });
  return res;
};
var getSlots = function getSlots(ele) {
  var componentOptions = ele.componentOptions || {};
  if (ele.$vnode) {
    componentOptions = ele.$vnode.componentOptions || {};
  }
  var children = ele.children || componentOptions.children || [];
  var slots = {};
  children.forEach(function (child) {
    if (!isEmptyElement(child)) {
      var name = child.data && child.data.slot || 'default';
      slots[name] = slots[name] || [];
      slots[name].push(child);
    }
  });
  return slots;
};
var getAllChildren = function getAllChildren(ele) {
  var componentOptions = ele.componentOptions || {};
  if (ele.$vnode) {
    componentOptions = ele.$vnode.componentOptions || {};
  }
  return ele.children || componentOptions.children || [];
};
var getSlotOptions = function getSlotOptions(ele) {
  if (ele.fnOptions) {
    // 函数式组件
    return ele.fnOptions;
  }
  var componentOptions = ele.componentOptions;
  if (ele.$vnode) {
    componentOptions = ele.$vnode.componentOptions;
  }
  return componentOptions ? componentOptions.Ctor.options || {} : {};
};
var getOptionProps = function getOptionProps(instance) {
  if (instance.componentOptions) {
    var componentOptions = instance.componentOptions;
    var _componentOptions$pro = componentOptions.propsData,
        propsData = _componentOptions$pro === undefined ? {} : _componentOptions$pro,
        _componentOptions$Cto = componentOptions.Ctor,
        Ctor = _componentOptions$Cto === undefined ? {} : _componentOptions$Cto;

    var props = (Ctor.options || {}).props || {};
    var res = {};
    var _iteratorNormalCompletion = true;
    var _didIteratorError = false;
    var _iteratorError = undefined;

    try {
      for (var _iterator = Object.entries(props)[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
        var _ref = _step.value;

        var _ref2 = _slicedToArray(_ref, 2);

        var k = _ref2[0];
        var v = _ref2[1];

        var def = v['default'];
        if (def !== undefined) {
          res[k] = typeof def === 'function' && getType(v.type) !== 'Function' ? def.call(instance) : def;
        }
      }
    } catch (err) {
      _didIteratorError = true;
      _iteratorError = err;
    } finally {
      try {
        if (!_iteratorNormalCompletion && _iterator['return']) {
          _iterator['return']();
        }
      } finally {
        if (_didIteratorError) {
          throw _iteratorError;
        }
      }
    }

    return _extends({}, res, propsData);
  }
  var _instance$$options = instance.$options,
      $options = _instance$$options === undefined ? {} : _instance$$options,
      _instance$$props = instance.$props,
      $props = _instance$$props === undefined ? {} : _instance$$props;

  return filterProps($props, $options.propsData);
};

var getComponentFromProp = function getComponentFromProp(instance, prop) {
  var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : instance;
  var execute = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : true;

  if (instance.$createElement) {
    var h = instance.$createElement;
    var temp = instance[prop];
    if (temp !== undefined) {
      return typeof temp === 'function' && execute ? temp(h, options) : temp;
    }
    return instance.$slots[prop] || instance.$scopedSlots[prop] && execute && instance.$scopedSlots[prop](options) || instance.$scopedSlots[prop] || undefined;
  } else {
    var _h = instance.context.$createElement;
    var _temp = getPropsData(instance)[prop];
    if (_temp !== undefined) {
      return typeof _temp === 'function' && execute ? _temp(_h, options) : _temp;
    }
    var slotsProp = [];
    var componentOptions = instance.componentOptions || {};
    (componentOptions.children || []).forEach(function (child) {
      if (child.data && child.data.slot === prop) {
        if (child.tag === 'template') {
          slotsProp.push(child.children);
        } else {
          slotsProp.push(child);
        }
      }
    });
    return slotsProp.length ? slotsProp : undefined;
  }
};

var getAllProps = function getAllProps(ele) {
  var data = ele.data || {};
  var componentOptions = ele.componentOptions || {};
  if (ele.$vnode) {
    data = ele.$vnode.data || {};
    componentOptions = ele.$vnode.componentOptions || {};
  }
  return _extends({}, data.props, data.attrs, componentOptions.propsData);
};

var getPropsData = function getPropsData(ele) {
  var componentOptions = ele.componentOptions;
  if (ele.$vnode) {
    componentOptions = ele.$vnode.componentOptions;
  }
  return componentOptions ? componentOptions.propsData || {} : {};
};
var getValueByProp = function getValueByProp(ele, prop) {
  return getPropsData(ele)[prop];
};

var getAttrs = function getAttrs(ele) {
  var data = ele.data;
  if (ele.$vnode) {
    data = ele.$vnode.data;
  }
  return data ? data.attrs || {} : {};
};

var getKey = function getKey(ele) {
  var key = ele.key;
  if (ele.$vnode) {
    key = ele.$vnode.key;
  }
  return key;
};

export function getEvents(child) {
  var events = {};
  if (child.componentOptions && child.componentOptions.listeners) {
    events = child.componentOptions.listeners;
  } else if (child.data && child.data.on) {
    events = child.data.on;
  }
  return _extends({}, events);
}
export function getClass(ele) {
  var data = {};
  if (ele.data) {
    data = ele.data;
  } else if (ele.$vnode && ele.$vnode.data) {
    data = ele.$vnode.data;
  }
  var tempCls = data['class'] || {};
  var staticClass = data.staticClass;
  var cls = {};
  staticClass && staticClass.split(' ').forEach(function (c) {
    cls[c.trim()] = true;
  });
  if (typeof tempCls === 'string') {
    tempCls.split(' ').forEach(function (c) {
      cls[c.trim()] = true;
    });
  } else if (Array.isArray(tempCls)) {
    classNames(tempCls).split(' ').forEach(function (c) {
      cls[c.trim()] = true;
    });
  } else {
    cls = _extends({}, cls, tempCls);
  }
  return cls;
}
export function getStyle(ele, camel) {
  var data = {};
  if (ele.data) {
    data = ele.data;
  } else if (ele.$vnode && ele.$vnode.data) {
    data = ele.$vnode.data;
  }
  var style = data.style || data.staticStyle;
  if (typeof style === 'string') {
    style = parseStyleText(style, camel);
  } else if (camel && style) {
    // 驼峰化
    var res = {};
    Object.keys(style).forEach(function (k) {
      return res[camelize(k)] = style[k];
    });
    return res;
  }
  return style;
}

export function getComponentName(opts) {
  return opts && (opts.Ctor.options.name || opts.tag);
}

export function isEmptyElement(c) {
  return !(c.tag || c.text && c.text.trim() !== '');
}

export function filterEmpty() {
  var children = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];

  return children.filter(function (c) {
    return !isEmptyElement(c);
  });
}
var initDefaultProps = function initDefaultProps(propTypes, defaultProps) {
  Object.keys(defaultProps).forEach(function (k) {
    if (propTypes[k]) {
      propTypes[k].def && (propTypes[k] = propTypes[k].def(defaultProps[k]));
    } else {
      throw new Error('not have ' + k + ' prop');
    }
  });
  return propTypes;
};

export function mergeProps() {
  var args = [].slice.call(arguments, 0);
  var props = {};
  args.forEach(function () {
    var p = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
    var _iteratorNormalCompletion2 = true;
    var _didIteratorError2 = false;
    var _iteratorError2 = undefined;

    try {
      for (var _iterator2 = Object.entries(p)[Symbol.iterator](), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) {
        var _ref3 = _step2.value;

        var _ref4 = _slicedToArray(_ref3, 2);

        var k = _ref4[0];
        var v = _ref4[1];

        props[k] = props[k] || {};
        if (isPlainObject(v)) {
          _extends(props[k], v);
        } else {
          props[k] = v;
        }
      }
    } catch (err) {
      _didIteratorError2 = true;
      _iteratorError2 = err;
    } finally {
      try {
        if (!_iteratorNormalCompletion2 && _iterator2['return']) {
          _iterator2['return']();
        }
      } finally {
        if (_didIteratorError2) {
          throw _iteratorError2;
        }
      }
    }
  });
  return props;
}

function isValidElement(element) {
  return element && (typeof element === 'undefined' ? 'undefined' : _typeof(element)) === 'object' && 'componentOptions' in element && 'context' in element && element.tag !== undefined; // remove text node
}

export { hasProp, filterProps, getOptionProps, getComponentFromProp, getSlotOptions, slotHasProp, getPropsData, getKey, getAttrs, getValueByProp, parseStyleText, initDefaultProps, isValidElement, camelize, getSlots, getAllProps, getAllChildren };
export default hasProp;