weex-nuke/lib/Text/index.js

基于 Rax 、Weex 的高性能组件体系 ~~

/** @jsx createElement */

'use strict';

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

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 _rax = require('rax');

var _nukeHelper = require('../Helper/index.js');

var _text = require('./text.js');

var _text2 = _interopRequireDefault(_text);

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

function _objectWithoutProperties(obj, keys) { var target = {}; for (var i in obj) { if (keys.indexOf(i) >= 0) continue; if (!Object.prototype.hasOwnProperty.call(obj, i)) continue; target[i] = obj[i]; } return target; }

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 defaultLineHeightOptimizer = function defaultLineHeightOptimizer(fontSize) {
  return Math.ceil(9.24 * Math.pow(10, -5) * Math.pow(fontSize, 2) + 1.492 * fontSize + 2.174);
};

var isWeb = typeof callNative !== 'function';

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

  function Text(props, context) {
    _classCallCheck(this, Text);

    var _this = _possibleConstructorReturn(this, (Text.__proto__ || Object.getPrototypeOf(Text)).call(this));

    _this.fixedFont = context.commonConfigs && context.commonConfigs.fixedFont;
    _this.fontFamily = context.commonConfigs && context.commonConfigs.fontFamily;
    _this.optimizeLineHeight = context.commonConfigs && context.commonConfigs.optimizeLineHeight;
    if ('fixedFont' in props) {
      _this.fixedFont = props.fixedFont;
    }
    if ('optimizeLineHeight' in props) {
      _this.optimizeLineHeight = props.optimizeLineHeight;
    }
    return _this;
  }
  /**
   * This function is used to  calculate line height when language is Thai or Vietnanese.
   * @param {obj} style
   */


  _createClass(Text, [{
    key: 'calcLineHeight',
    value: function calcLineHeight(style) {
      var lineHeightOptimizer = this.props.lineHeightOptimizer;

      var fontSize = parseInt(style.fontSize, 10);

      var lineHeight = lineHeightOptimizer(fontSize);

      if (lineHeight && !style.lineHeight) {
        if (this.fixedFont && typeof lineHeight === 'number') {
          style.lineHeight = lineHeight + (isWeb ? 'px' : 'wx');
        } else {
          style.lineHeight = lineHeight;
        }
      }
      return style;
    }
  }, {
    key: 'render',
    value: function render() {
      var _props = this.props,
          onPress = _props.onPress,
          onClick = _props.onClick,
          style = _props.style,
          others = _objectWithoutProperties(_props, ['onPress', 'onClick', 'style']);

      var defaultStyle = { fontSize: '32rem', wordWrap: 'break-word' };
      if (this.fontFamily) {
        defaultStyle.fontFamily = this.fontFamily;
      }
      var textStyle = Object.assign(defaultStyle, style);
      delete others.optimizeLineHeight;
      textStyle = this.fixedFont ? (0, _nukeHelper.calcTextSize)(textStyle) : textStyle;
      textStyle = this.optimizeLineHeight ? this.calcLineHeight(textStyle) : textStyle;
      return (0, _rax.createElement)(_text2.default, _extends({}, others, { style: textStyle, onClick: onPress || onClick }));
    }
  }]);

  return Text;
}(_rax.Component);

Text.contextTypes = {
  androidConfigs: _rax.PropTypes.any,
  commonConfigs: _rax.PropTypes.any
};
Text.propTypes = {
  optimizeLineHeight: _rax.PropTypes.boolean,
  fixedFont: _rax.PropTypes.boolean,
  style: _rax.PropTypes.any,
  onPress: _rax.PropTypes.func,
  onClick: _rax.PropTypes.func,
  lineHeightOptimizer: _rax.PropTypes.func
};
Text.defaultProps = {
  style: {},
  lineHeightOptimizer: defaultLineHeightOptimizer
};
exports.default = Text;
module.exports = exports['default'];