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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,87 @@ | ||
| import { useContext } from 'react'; | ||
| import { TodoContext } from './TodoContext'; | ||
| import { TodoFilter } from '../types/TodoFilter'; | ||
| import classNames from 'classnames'; | ||
|
|
||
| export const Footer = () => { | ||
| const { todos, filterBy, setFilterBy, setTodos } = useContext(TodoContext); | ||
|
|
||
| const activeTodosLength = todos.filter(t => !t.completed).length; | ||
| const isDisabledBtn = !(todos.length - activeTodosLength); | ||
| const title = | ||
| activeTodosLength === 1 ? '1 item left' : `${activeTodosLength} items left`; | ||
|
|
||
| const filterTodos = (status: TodoFilter) => { | ||
| switch (status) { | ||
| case 'Active': | ||
| setFilterBy('Active'); | ||
| break; | ||
| case 'Completed': | ||
| setFilterBy('Completed'); | ||
| break; | ||
| default: | ||
| setFilterBy('All'); | ||
| } | ||
| }; | ||
|
|
||
| const deleteCompleted = () => { | ||
| setTodos(todos.filter(t => !t.completed)); | ||
| }; | ||
|
|
||
| return ( | ||
| <footer className="todoapp__footer" data-cy="Footer"> | ||
| <span className="todo-count" data-cy="TodosCounter"> | ||
| {title} | ||
| </span> | ||
|
|
||
| {/* Active link should have the 'selected' class */} | ||
| <nav className="filter" data-cy="Filter"> | ||
| <a | ||
| href="#/" | ||
| className={classNames('filter__link', { | ||
| selected: filterBy === 'All', | ||
| })} | ||
| data-cy="FilterLinkAll" | ||
| onClick={() => filterTodos('All')} | ||
| > | ||
| All | ||
| </a> | ||
|
|
||
| <a | ||
| href="#/active" | ||
| className={classNames('filter__link', { | ||
| selected: filterBy === 'Active', | ||
| })} | ||
| data-cy="FilterLinkActive" | ||
| onClick={() => filterTodos('Active')} | ||
| > | ||
| Active | ||
| </a> | ||
|
|
||
| <a | ||
| href="#/completed" | ||
| className={classNames('filter__link', { | ||
| selected: filterBy === 'Completed', | ||
| })} | ||
| data-cy="FilterLinkCompleted" | ||
| onClick={() => filterTodos('Completed')} | ||
| > | ||
| Completed | ||
| </a> | ||
| </nav> | ||
|
|
||
| {/* this button should be disabled if there are no completed todos */} | ||
|
|
||
| <button | ||
| type="button" | ||
| className="todoapp__clear-completed" | ||
| style={{ visibility: `${isDisabledBtn ? 'hidden' : 'visible'}` }} | ||
| data-cy="ClearCompletedButton" | ||
| onClick={deleteCompleted} | ||
| disabled={isDisabledBtn} | ||
| > | ||
| Clear completed | ||
| </button> | ||
| </footer> | ||
| ); | ||
| }; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,61 @@ | ||
| import React, { useContext, useEffect, useRef, useState } from 'react'; | ||
| import { TodoContext } from './TodoContext'; | ||
| import classNames from 'classnames'; | ||
|
|
||
| export const Header = () => { | ||
| const { todos, setTodos } = useContext(TodoContext); | ||
| const [value, setValue] = useState(''); | ||
| const mainInput = useRef<HTMLInputElement>(null); | ||
| const isSomeActive = todos.some(t => !t.completed) || !todos.length; | ||
|
|
||
| useEffect(() => { | ||
| if (mainInput.current) { | ||
| mainInput.current.focus(); | ||
| } | ||
| }, [todos]); | ||
|
|
||
| const submitHandler: React.FormEventHandler<HTMLFormElement> = e => { | ||
| e.preventDefault(); | ||
|
|
||
| setTodos([ | ||
| ...todos, | ||
| { id: Date.now(), title: value.trim(), completed: false }, | ||
| ]); | ||
| setValue(''); | ||
| }; | ||
|
|
||
| const toggleAll = () => { | ||
| if (isSomeActive) { | ||
| setTodos(todos.map(t => ({ ...t, completed: true }))); | ||
| } else { | ||
| setTodos(todos.map(t => ({ ...t, completed: false }))); | ||
| } | ||
| }; | ||
|
|
||
| return ( | ||
| <header className="todoapp__header"> | ||
| {!!todos.length && ( | ||
| <button | ||
| type="button" | ||
| className={classNames('todoapp__toggle-all', { | ||
| active: !isSomeActive, | ||
| })} | ||
| data-cy="ToggleAllButton" | ||
| onClick={toggleAll} | ||
| /> | ||
| )} | ||
|
|
||
| <form onSubmit={submitHandler}> | ||
| <input | ||
| data-cy="NewTodoField" | ||
| type="text" | ||
| className="todoapp__new-todo" | ||
| placeholder="What needs to be done?" | ||
| value={value} | ||
| ref={mainInput} | ||
| onChange={e => setValue(e.target.value)} | ||
| /> | ||
| </form> | ||
| </header> | ||
| ); | ||
| }; |
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