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<template>
<div id="root">
<div class="todo-container">
<div class="todo-wrap">
<TodoHeader :addTodo="addTodo"/>
<TodoList :todos="todos" :checkTodo="checkTodo" :deleteTodo="deleteTodo"/>
<TodoBottom :todos="todos" :checkAllTodo="checkAllTodo" :clearAllTodo="clearAllTodo"/>
</div>
</div>
</div>
</template>
<script>
import TodoHeader from "./components/TodoHeader.vue";
import TodoList from "./components/TodoList.vue";
import TodoBottom from "./components/TodoBottom.vue";
export default {
name: "App",
components: {
TodoHeader,
TodoList,
TodoBottom
},
data() {
return {
// 预置测试数据
todos: [
{id: "001", title: "产品", done: true},
{id: "002", title: "开发", done: true},
{id: "003", title: "测试", done: false}
]
}
},
// 由于数据需要被不同的子组件访问,暂时没有学习数据的处理方法,所以将数据放置在父组件App中
// 导致处理数据的相关方法也要放到App中,通过组件间参数传递的方式传到各个组件
methods: {
// 添加todo任务,绑定到TodoHeader中
addTodo(todoObj) {
this.todos.unshift(todoObj)
},
// 勾选和取消勾选todo任务,穿透TodoList绑定到TodoItem中
checkTodo(id) {
this.todos.forEach((todo) => {
if (todo.id === id) todo.done = !todo.done
})
},
// 删除单个todo任务,穿透TodoList绑定到TodoItem中
deleteTodo(id) {
this.todos = this.todos.filter(todo => todo.id !== id)
},
// 勾选或取消勾选全部todo任务,绑定到TodoBottom中
checkAllTodo(done) {
this.todos.forEach((todo) => todo.done = done)
},
// 清除全部已完成的todo任务,绑定到TodoBottom中
clearAllTodo() {
this.todos = this.todos.filter((todo) => {
return !todo.done
})
}
}
}
</script>
<style>
body {
background: #fff;
}
.btn {
display: inline-block;
padding: 4px 12px;
margin-bottom: 0;
font-size: 14px;
line-height: 20px;
text-align: center;
vertical-align: middle;
cursor: pointer;
box-shadow: inset 0 1px rgba(255, 255, 255, 0.2), 0 1px 2px rgba(0, 0, 0, 0.05);
border-radius: 4px;
}
.btn-danger {
color: #fff;
background-color: #da4f49;
border: 1px solid #bd362f;
}
.btn-danger:hover {
color: #fff;
background-color: #bd362f;
}
.btn:focus {
outline: none;
}
.todo-container {
width: 600px;
margin: 0 auto;
}
.todo-container .todo-wrap {
padding: 10px;
border: 1px solid #ddd;
border-radius: 5px;
}
</style>