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todos.html
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todos.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<div class="page-top">
<div class="page-content">
<h2>任务计划列表</h2>
</div>
</div>
<div id="app" class="main">
<h3 class="big-title">添加任务：</h3>
<input
placeholder="例如：吃饭睡觉打豆豆； 提示：+回车即可添加任务"
class="task-input"
type="text"
v-model="inputvalue"
@keyup.enter="add"
/>
<ul class="task-count" v-if="list.length!==0">
<li>{{noCheckedLength}}个任务未完成</li>
<li class="action">
<a :class="{active: hashName==='all'}" href="#all">所有任务</a>
<a :class="{active: hashName==='unfinished'}" href="#unfinished">未完成的任务</a>
<a :class="{active: hashName==='finished'}" href="#finished">完成的任务</a>
</li>
</ul>
<h3 class="big-title">任务列表：</h3>
<div class="tasks">
<span class="no-task-tip" v-if="list.length===0">还没有添加任何任务</span>
<ul class="todo-list">
<!--class editing-->
<li class="todo" :class="{completed: todo.checked,editing:todo===editorTodos}" v-for="todo in afterFilterList" >
<div class="view">
<input class="toggle" v-model="todo.checked" type="checkbox"/>
<label @dblclick="editorTodo(todo)">{{todo.name}}</label>
<button class="destroy" @click="deleteTodo(todo)"></button>
</div>
<input
class="edit"
type="text"
v-model="todo.name"
v-focus="todo===editorTodos"
@blur="editedTodo"
@keyup.13="editedTodo"
@keyup.esc="cancelEdit(todo)"
/>
</li>
</ul>
</div>
</div>
<script src="vue.js"></script>
<script type="text/javascript">
var store = {
save(key,value){
localStorage.setItem(key,JSON.stringify(value));
},
fetch(key){
return JSON.parse(localStorage.getItem(key)) || [];
}
}
// var data = [
// {
// name:'很好',
// checked:false
// },{
// name:'测试一下',
// checked:true
// }
// ];
var data = store.fetch("todosdata");
var app = new Vue({
el:'#app',
data:{
list:data,
inputvalue:'',
editorTodos:null,//正在编辑的对象
beforeTodo:null,//记录编辑前的name，以便取消时回滚
hashName:'all'//通过这个值的变化对list进行筛选
},
watch:{
// list:function(){
// store.save("todosdata",this.list);
// }
list:{
handler:function(){
store.save("todosdata",this.list);
},
deep:true
}
},
computed:{//计算属性
noCheckedLength: function(){//计算未完成的任务数
return this.list.filter(function(item){
return !item.checked
}).length;
},
afterFilterList: function(){//过滤后要显示的list
var filter = {
all: function(list){
return list;
},
unfinished: function(list){
return list.filter(function(item){
return !item.checked
});
},
finished: function(list){
return list.filter(function(item){
return item.checked
});
}
};
return filter[this.hashName](this.list);
}
},
methods:{
add:function(){//添加
this.list.push({
name:this.inputvalue,
checked:false
});
this.inputvalue = '';
},
deleteTodo:function(todo){//删除
var index = this.list.indexOf(todo);
this.list.splice(index,1);
},
editorTodo:function(todo){//开始编辑
this.editorTodos = todo;
this.beforeTodo = todo.name;
},
editedTodo:function(){//完成编辑
this.editorTodos = null;
},
cancelEdit:function(todo){//取消编辑
todo.name=this.beforeTodo;
this.editorTodos = null;
this.beforeTodo = null;
}
},
directives:{//自定义命令
"focus":{
update(el,binding){
if(binding.value){
el.focus();
}
}
}
}
});
function watchHashChange(){
var hash = window.location.hash.slice(1);
//只有在这三个状态时才修改hashNamev
var status = ['all','unfinished','finished'];
if(status.indexOf(hash)!==-1){
app.hashName = hash;
}
}
watchHashChange();
//监控hash变化
window.addEventListener("hashchange",watchHashChange);
</script>
</body>
</html>