redux

anu可以直接与redux, react-redux一起使用。

<!DOCTYPE html>
<html>

<head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width">
 <script type='text/javascript' src="./dist/React.js"></script>

    <script src="./lib/redux.js"></script>
    <script src="./lib/react-redux.js"></script>
    <script src="./lib/babel.js"></script>
    <script type='text/babel'>

    var combineReducers = Redux.combineReducers
    var Provider = ReactRedux.Provider
    var connect = ReactRedux.connect

const todo = (state, action) => {
  switch (action.type) {
    case 'ADD_TODO':
      return {
        id: action.id,
        text: action.text,
        completed: false
      }
    case 'TOGGLE_TODO':
      if (state.id !== action.id) {
        return state
      }

      return {
        ...state,
        completed: !state.completed
      }
    default:
      return state
  }
}

const todos = (state = [], action) => {
  switch (action.type) {
    case 'ADD_TODO':
      return [
        ...state,
        todo(undefined, action)
      ]
    case 'TOGGLE_TODO':
      return state.map(t =>
        todo(t, action)
      )
    default:
      return state
  }
}
const visibilityFilter = (state = 'SHOW_ALL', action) => {
  switch (action.type) {
    case 'SET_VISIBILITY_FILTER':
      return action.filter
    default:
      return state
  }
}
const todoApp = combineReducers({ 
  todos,
  visibilityFilter
})


//===================filters
let nextTodoId = 0
const addTodo = (text) => ({
  type: 'ADD_TODO',
  id: nextTodoId++,
  text
})

const setVisibilityFilter = (filter) => ({
  type: 'SET_VISIBILITY_FILTER',
  filter
})

const toggleTodo = (id) => ({
  type: 'TOGGLE_TODO',
  id
})

const Link = ({ active, children, onClick }) => {
  if (active) {
    return <span>{children}</span>
  }
  return (
    <a href="#"
       onClick={e => {
         e.preventDefault()
         onClick()
       }}
    >
      {children}
    </a>
  )
}
const Todo = ({ onClick, completed, text }) => (
  <li
    onClick={onClick}
    style={{
      textDecoration: completed ? 'line-through' : 'none'
    }}
  >
    {text}
  </li>
)
const TodoList = function({ todos, onTodoClick }) {

  return <ul>
    {todos.map(todo =>
      <Todo
        key={todo.id}
        {...todo}
        onClick={() => onTodoClick(todo.id)}
      />
    )}
  </ul>
}
const Footer = () => (
  <p>
    Show:
    {" "}
    <FilterLink filter="SHOW_ALL">
      All
    </FilterLink>
    {", "}
    <FilterLink filter="SHOW_ACTIVE">
      Active
    </FilterLink>
    {", "}
    <FilterLink filter="SHOW_COMPLETED">
      Completed
    </FilterLink>
  </p>
)

const App = () => (
  <div>
    <AddTodo />
    <VisibleTodoList />
    <Footer />
  </div>
)


let AddTodo = ({ dispatch }) => {
  let input

  return (
    <div>
      <form onSubmit={e => {
        e.preventDefault()
        if (!input.value.trim()) {
          return
        }
        dispatch(addTodo(input.value))
        input.value = ''
      }}>
        <input ref={node => {
          input = node
        }} />
        <button type="submit">
          Add Todo
        </button>
      </form>(点列表前的圆点切换状态)
    </div>
  )
}

AddTodo = connect()(AddTodo)
const mapStateToProps = (state, ownProps) => ({
  active: ownProps.filter === state.visibilityFilter
})

const mapDispatchToProps = (dispatch, ownProps) => ({
  onClick: () => {
    dispatch(setVisibilityFilter(ownProps.filter))
  }
})

const FilterLink = connect(
  mapStateToProps,
  mapDispatchToProps
)(Link)

const getVisibleTodos = (todos, filter) => {
  switch (filter) {
    case 'SHOW_ALL':
      return todos
    case 'SHOW_COMPLETED':
      return todos.filter(t => t.completed)
    case 'SHOW_ACTIVE':
      return todos.filter(t => !t.completed)
    default:
      throw new Error('Unknown filter: ' + filter)
  }
}

const mapStateToProps1 = (state) => ({
  todos: getVisibleTodos(state.todos, state.visibilityFilter)
})

const mapDispatchToProps1 = {
  onTodoClick: toggleTodo
}

const VisibleTodoList = connect(
  mapStateToProps1,
  mapDispatchToProps1
)(TodoList)

const store = Redux.createStore(todoApp)
var s 

window.onload = function(){
  s = ReactDOM.render(
  <Provider store={store}>
    <App />
  </Provider>,
  document.getElementById('example')
 )
}
    </script>
</head>

<body>

    <div>测试</div>
    <blockquote id='example'></blockquote>


</body>

</html>
Copyright © 司徒正美 2013-2016 all right reserved,powered by Gitbook该文件修订时间: 2017-08-29 13:16:09

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