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labrador-redux

v0.1.1

Published

redux connect for labrador

Downloads

28

Readme

labrador-redux

Labrador 版本的Redux连接库。

使用示例请查看 Labrador Demo

安装

npm install labrador-redux --save

API

setStore(store)

设置当前项目的Redux store,请在项目初始化时调用,例如

// src/app.js

import { setStore } from 'labrador-redux';
import store from './redux';

// 向labrador-redux注册store
setStore(store);

export default class {
  onLaunch() {
  }
}
getStore()

获取当前项目的Redux store,必须在项目初始化时调用setStore()后此方法才能正常运行。

connect([mapStateToProps], [mapDispatchToProps], [mergeProps])

将Redux store 中的 state绑定到指定Labrador组件。

参数:

  • [mapStateToProps(state): stateProps] (Function): 如果定义该参数,组件将会监听 Redux store 的变化。任何时候,只要 Redux store 发生改变,mapStateToProps函数就会被调用。该回调函数必须返回一个纯对象,这个对象会与组件的 props 合并。如果你省略了这个参数,你的组件将不会监听 Redux store。
  • [mapDispatchToProps(dispatch): dispatchProps] (Function): 该参数是一个函数,如果定义该参数,该函数将接收一个 dispatch 函数,然后由你来决定如何返回一个对象,这个对象通过 dispatch 函数与 action creator 以某种方式绑定在一起(提示:你也许会用到 Redux 的辅助函数 bindActionCreators())。如果你省略这个 mapDispatchToProps 参数,默认情况下,dispatch 会注入到你的组件 props 中。
  • [mergeProps(stateProps, dispatchProps, ownProps): props] (Function): 如果指定了这个参数,mapStateToProps()mapDispatchToProps() 的执行结果和组件自身的 props 将传入到这个回调函数中。该回调函数返回的对象将作为 props 传递到被包装的组件中。你也许可以用这个回调函数,根据组件的 props 来筛选部分的 state 数据,或者把 props 中的某个特定变量与 action creator 绑定在一起。如果你省略这个参数,默认情况下返回 Object.assign({}, ownProps, stateProps, dispatchProps) 的结果。

使用举例:

import wx, { Component, PropTypes } from 'labrador-immutable';
import { bindActionCreators } from 'redux';
import { connect } from 'labrador-redux';
import * as todoActions from '../../redux/todos';

const { array, func } = PropTypes;

class Index extends Component {
  static propTypes = {
    todos: array,
    removeTodo: func,
    restoreTodo: func,
    createTodo: func,
    finishTodo: func
  };
}

export default connect(
  ({ todos }) => ({ todos }),
  (dispatch) => bindActionCreators({
    createTodo: todoActions.create,
    removeTodo: todoActions.remove,
    finishTodo: todoActions.finish,
    restoreTodo: todoActions.restore,
  }, dispatch)
)(Index);

与react-redux的差异

  • labrador-redux不提供 <Provider/> 请使用 setStore() 代替。
  • connect 函数的 mapStateToPropsmapDispatchToProps 参数回调函数暂时不支持第二个参数 ownProps
  • connect 函数没有第四个参数 options