weex-nuke/lib/EpTabbar/view/item.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 _nukeEpUtils = require('../../EpUtils/index.js');

var _nukeThemeProvider = require('../../ThemeProvider/index.js');

var _emitter = require('../util/emitter.js');

var _emitter2 = _interopRequireDefault(_emitter);

var _index = require('../styles/index.js');

var _index2 = _interopRequireDefault(_index);

var _nukeView = require('../../View/index.js');

var _nukeView2 = _interopRequireDefault(_nukeView);

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

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; }

// 在weex及非android4.4以下的机器中才使用ep绑定
var expressionBinding = {};
try {
  expressionBinding = require('@weex-module/expressionBinding');
} catch (e) {}

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

  function Item(props) {
    _classCallCheck(this, Item);

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

    _this.onHorizontalPan = function (e) {
      if (e.state === 'start') {
        _this.isPanning = true;
        _emitter2.default.emit('slider', {
          element: (0, _rax.findDOMNode)(_this)
        });
      } else if (e.state === 'end') {
        setTimeout(function () {
          _this.isPanning = false;
        }, 50);
      }
    };

    _this.onItemAppear = function (e) {
      if (_nukeEpUtils.Detection.epEnable && _nukeEpUtils.Detection.Android) {
        var element = (0, _rax.findDOMNode)(_this);
        if (element && element.ref) {
          expressionBinding.enableBinding(element.ref, 'pan');
        }
      }
      var _this$props = _this.props,
          onAppear = _this$props.onAppear,
          exposure = _this$props.exposure;


      if (exposure === true && !_this.isAppear) {
        _this.isAppear = true;
      }

      if (typeof onAppear === 'function') {
        onAppear(e);
      }
    };

    _this.onItemDisAppear = function (e) {
      if (_nukeEpUtils.Detection.epEnable && _nukeEpUtils.Detection.Android) {
        var element = (0, _rax.findDOMNode)(_this);
        if (element && element.ref) {
          expressionBinding.disableBinding(element.ref, 'pan');
        }
      }

      var onDisAppear = _this.props.onDisAppear;

      if (typeof onDisAppear === 'function') {
        onDisAppear(e);
      }
    };

    _this.onClick = function (e) {
      // console.log('click-->', e);
    };

    _this.isPaning = false;
    _this.isAppear = false;
    return _this;
  }

  _createClass(Item, [{
    key: 'componentDidMount',
    value: function componentDidMount() {
      var _this2 = this;

      setTimeout(function () {
        if (_nukeEpUtils.Detection.epEnable && _nukeEpUtils.Detection.Android) {
          try {
            var element = (0, _rax.findDOMNode)(_this2);
            if (element && element.ref) {
              expressionBinding.enableBinding(element.ref, 'pan');
            }
          } catch (e) {
            console.error('pancell findDOMNode error');
          }
        }
      }, 300);
    }

    // use for andorid
    // @todo  事件绑定存在问题，当list作为子元素时无法触发横向滚动
    //  @todo bug  android事件冒泡需要在list的cell中再次绑定onHorizontalPan，作为事件anchor

  }, {
    key: 'render',
    value: function render() {
      var _props = this.props,
          style = _props.style,
          children = _props.children,
          themeStyle = _props.themeStyle;

      return (0, _rax.createElement)(_nukeView2.default, _extends({}, this.props, {
        style: [themeStyle.container, style],
        preventMoveEvent: false,
        onAppear: this.onItemAppear,
        onClick: this.onClick,
        onDisAppear: this.onItemDisAppear,
        onHorizontalPan: this.onHorizontalPan
      }));
    }
  }]);

  return Item;
}(_rax.Component);

// Item.propTypes = {};

// Item.defaultProps = {};


Item.displayName = 'Ep-Tabbar';

exports.default = (0, _nukeThemeProvider.connectStyle)(_index2.default)(Item);
module.exports = exports['default'];