angular40-angular实现todolist3编辑功能
demo497.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body ng-app="MyToDoMvc">
<section class="todoapp" ng-controller="MainController">
<header class="header">
<h1>todos</h1>
<form ng-submit='add()'>
<input class="new-todo" placeholder="what needs to be done" ng-model="text" autofocus>
</form>
</header>
<!-- <input class="new-todo" placeholder="what needs to be done" ng-model="text" autofocus> -->
<section class="main">
<input class="toggle-all" type="checkbox">
<label for="toggle-all">Mark all as complete</label>
<ul class="todo-list">
<li ng-repeat="todo in todos" ng-class={completed:todo.completed,editing:todo.id===currentEditimgId} data-id="{{todo.id}}">
<div class="view">
<input class="toggle" type="checkbox" ng-model="todo.completed">
<label ng-dblclick="editing(todo.id)">{{todo.text}}</label>
<button class="destroy" ng-click="remove(todo.id)">删除</button>
</div>
<form ng-submit="save()">
<input type="edit" ng-model="todo.text">
</form>
</li>
<!-- <li>
<div class="view">
<input class="toggle" type="checkbox">
<label>Buy a unicorn</label>
<button class="destroy"></button>
</div>
<input type="edit" value="Rule the web">
</li> -->
</ul>
</section>
<footer class="footer">
<span class="todo-count"><strong>{{todos.length}}</strong>item left</span>
<button class="clear-completed" ng-click="clear()" ng-show="existCompleted()">clear</button>
</footer>
</section>
<script src="./node_modules/angular/angular.js"></script>
<script src="./js/mvc.js"></script>
<script>
</script>
</body>
</html>
.mvc.js
(function(angular) {
'use strict';
/* 应用程序主要的模块 */
var myApp = angular.module('MyToDoMvc', []);
//注册一个主要的控制器
myApp.controller('MainController', ['$scope', function($scope) {
//复杂的递归 保证id不重复
function getId() {
var id = Math.random();
for (var i = 0; i < $scope.todos.length; i++) {
if ($scope.todos[i].id === id) {
id = getId();
break;
}
}
return id;
}
//文本框模型
$scope.text = '';
//任务列表模型{id 1.text '学习' completed:trur}
$scope.todos = [{
id: 1,
text: '学习',
completed: false,
editing: false
},
{
id: 2,
text: '睡觉',
completed: false,
editing: false
},
{
id: 3,
text: '打豆豆',
completed: true,
editing: false
}
];
//添加元素
$scope.add = function() {
$scope.todos.push({
id: $scope.todos.length + 1,
text: $scope.text,
completed: false
});
//清空文本数据
$scope.text = '';
}
//处理删除
$scope.remove = function(id) {
//删除谁
//寻找
for (var i = 0; i < $scope.todos.length; i++) {
if ($scope.todos[i].id === id) {
$scope.todos.splice(i, 1);
break;
}
/* if (1 === a) {
} */
}
//$scope.todos
}
$scope.clear = function() {
var result = [];
for (var i = 0; i < $scope.todos.length; i++) {
if (!$scope.todos[i].completed) {
result.push($scope.todos[i]);
}
/* if (1 === a) {
} */
}
$scope.todos = result;
}
//是否已经由完成的
$scope.existCompleted = function() {
//该函数一定要有返回值
for (var i = 0; i < $scope.todos.length; i++) {
if ($scope.todos[i].completed) {
return true;
}
/* if (1 === a) {
} */
}
return false;
}
//当前编辑哪个元素
$scope.currentEditimgId = -1;
$scope.editing = function(id) {
$scope.currentEditimgId = id;
}
$scope.save = function(id) {
$scope.currentEditimgId = -1;
}
}])
})(angular);
运行结果
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