nuke-text/lib/text.js

文本

'use strict';

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

var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };

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; };

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _class, _temp2;

var _rax = require('rax');

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

var isWeex = typeof callNative === 'function';

var Text = (_temp2 = _class = function (_Component) {
  _inherits(Text, _Component);

  function Text() {
    var _ref;

    var _temp, _this, _ret;

    _classCallCheck(this, Text);

    for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
      args[_key] = arguments[_key];
    }

    return _ret = (_temp = (_this = _possibleConstructorReturn(this, (_ref = Text.__proto__ || Object.getPrototypeOf(Text)).call.apply(_ref, [this].concat(args))), _this), _this.renderText = function () {
      var props = _this.props;
      var nativeProps = _extends({}, props, {
        style: props.style || {}
      });

      var textString = '';
      if (props.children != null) {
        if (!Array.isArray(props.children)) {
          textString = props.children.toString();
        } else {
          textString = props.children.join('');
        }
      }

      if (_this.context.isInAParentText) {
        return (0, _rax.createElement)(
          'span',
          nativeProps,
          textString
        );
      }

      if (props.onPress) {
        nativeProps.onClick = props.onPress;
      }

      if (isWeex) {
        if (props.numberOfLines) {
          nativeProps.style.lines = props.numberOfLines;
        }

        nativeProps.value = textString;

        return (0, _rax.createElement)('text', nativeProps);
      }
      var styleProps = _extends({}, styles.text, nativeProps.style);
      var numberOfLines = props.numberOfLines;
      if (numberOfLines) {
        if (parseInt(numberOfLines) === 1) {
          styleProps.whiteSpace = 'nowrap';
        } else {
          styleProps.display = '-webkit-box';
          styleProps.webkitBoxOrient = 'vertical';
          styleProps.webkitLineClamp = String(numberOfLines);
        }

        styleProps.overflow = 'hidden';
      }

      return (0, _rax.createElement)(
        'span',
        _extends({}, nativeProps, { style: styleProps }),
        textString
      );
    }, _this.renderRichText = function () {
      var props = _this.props;
      var children = props.children;


      var nativeProps = _extends({}, props, {
        style: props.style || {}
      });
      var styleProps = _extends({}, styles.richtext, nativeProps.style);

      if (isWeex) {
        children = transformChildren(children, _this);
      }

      return (0, _rax.createElement)(
        'p',
        _extends({}, nativeProps, { style: styleProps }),
        children
      );
    }, _temp), _possibleConstructorReturn(_this, _ret);
  }

  _createClass(Text, [{
    key: 'getChildContext',
    value: function getChildContext() {
      return {
        isInAParentText: true
      };
    }
  }, {
    key: 'render',
    value: function render() {
      var props = this.props;
      var children = props.children;

      if (!Array.isArray(children)) {
        children = [children];
      }

      var nested = false;
      for (var i = 0; i < children.length; i++) {
        var child = children[i];
        if (child && (typeof child === 'undefined' ? 'undefined' : _typeof(child)) === 'object') {
          nested = true;
          break;
        }
      }

      return nested ? this.renderRichText() : this.renderText();
    }
  }]);

  return Text;
}(_rax.Component), _class.propTypes = {}, _class.contextTypes = {
  isInAParentText: _rax.PropTypes.bool
}, _class.childContextTypes = {
  isInAParentText: _rax.PropTypes.bool
}, _temp2);


function transformChild(child, instance) {
  var ChildComponent = child.type,
      props = child.props;
  var children = props.children;


  if (typeof ChildComponent === 'function') {
    var childInstance = new ChildComponent();
    childInstance.props = props;
    if (children) {
      childInstance.props.children = transformChildren(children, instance);
    }
    childInstance.context = instance.getChildContext();

    return childInstance.render();
  }
  return child;
}

function transformChildren(children, instance) {
  var elements = [];
  if (!Array.isArray(children)) {
    children = [children];
  }

  for (var i = 0; i < children.length; i++) {
    var child = children[i];
    if (typeof child === 'string') {
      elements.push(child);
    } else if ((typeof child === 'undefined' ? 'undefined' : _typeof(child)) === 'object') {
      elements.push(transformChild(child, instance));
    }
  }

  return elements;
}

var styles = {
  text: {
    border: '0 solid black',
    position: 'relative',
    boxSizing: 'border-box',
    display: 'block',
    flexDirection: 'column',
    alignContent: 'flex-start',
    flexShrink: 0,
    fontSize: 32
  },
  richtext: {
    marginTop: 0,
    marginBottom: 0
  }
};

exports.default = Text;
module.exports = exports['default'];