vue的基本指令的完整案例

作者: 十年之后_b94a | 来源:发表于2018-03-01 10:55 被阅读0次

//html
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <link rel="stylesheet" href="index.css">
    <script src="vue.min.js"></script>
</head>
<body>
    <div class="page-top">
        <div class="page-content">
            <h2>任务计划列表</h2>
        </div>
    </div>
    <div 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="editData" @keyup.13="addTodo"/>
        <ul class="task-count" v-show="list.length">
            <li>{{filterData.length}}个任务未完成</li>
            <li class="action">
                <a :class={active:hashData==='all'} href="#all">所有任务</a>
                <a href="#unfinshed" :class={active:hashData==='unfinshed'}>未完成的任务</a>
                <a href="#finshed" :class={active:hashData==='finshed'}>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-show="!list.length">还没有添加任何任务</span>
            <ul class="todo-list">
                <li class="todo" :class="{completed:item.isChecked,editing:item === nowEdit}" v-for="item in hashFilter">
                    <div class="view">
                        <input class="toggle" type="checkbox" v-model="item.isChecked"/>
                        <label @dblclick="editTodo(item)">{{item.title}}</label>
                        <button class="destroy" @click="deleteTodo(item)"></button>
                    </div>
                    <input class="edit" type="text" v-focus="true" @keyup.esc="escTodo" @blur="saveEdit(item)" v-model="nowEdit.title"/>
                </li>
            </ul>
        </div>
    </div>
    <script>
        let list = [
            {
                title:'测试',
                isChecked:false
            },
            {
                title:'学这么多',
                isChecked:true
            },
            {
                title:'我的速度太慢了',
                isChecked:false
            }
        ];
        const vm = new Vue({
            el:".main",
            data:{
                list:list,
                editData:'',//正在编辑的数据
                nowEdit:'', //双击编辑的数据
                beforeData:'', //退出编辑的数据
                hashData : 'all'  //hash的数据
            },
            computed:{
                filterData(){
                    return this.list.filter(function(item){
                        return !item.isChecked
                    })
                },
                hashFilter(){
                    const hashEnter={
                        all(list){ //所有的
                            return list;
                        },
                        unfinshed(list){ //未完成的
                            return list.filter(function(item){
                                return !item.isChecked
                            })
                        }, 
                        finshed(list){ //完成的
                            return list.filter(function(item){
                                return item.isChecked
                            })
                        }
                    }
                    return hashEnter[this.hashData]?hashEnter[this.hashData](this.list):this.list
                }
            },
            methods:{
                deleteTodo(todo){//删除数据
                    const index = this.list.indexOf(todo);
                    this.list.splice(index,1);
                },
                addTodo(){ //回车添加数据
                    if(this.editData=='') return;
                    this.list.push({
                        title:this.editData,
                        isChecked:false
                    });
                    this.editData = '';
                },
                editTodo(todo){ //双击展开编辑
                    this.nowEdit = todo;
                    this.beforeData = todo.title;
                },
                saveEdit(todo){ //失去焦点保存数据
                    this.nowEdit = '';
                    this.beforeData = '';
                },
                escTodo(){
                     this.nowEdit.title = this.beforeData;
                     this.nowEdit = '';
                }
            },
            directives:{ //自定义事件
                focus:{
                    update(el){
                        el.focus();
                    }
                }
            }
        })

        window.addEventListener('hashchange',function(){
            const hash = window.location.hash.substr(1);
            vm.hashData = hash;
        })
    </script>
</body>
</html>

css文件

//css
body {
    margin:0;
    background-color: #fafafa;
    font: 14px 'Helvetica Neue', Helvetica, Arial, sans-serif;
}

h2{
    margin:0;
    font-size: 12px;
}
a {
    color: #000;
    text-decoration: none;
}

input {
    outline: 0;
}

button {
    margin: 0;
    padding: 0;
    border: 0;
    background: none;
    font-size: 100%;
    vertical-align: baseline;
    font-family: inherit;
    font-weight: inherit;
    color: inherit;
    outline: 0;
}

ul {
    padding:0;
    margin:0;
    list-style: none;
}

.page-top {
    width: 100%;
    height: 40px;
    background-color: #db4c3f;
}

.page-content {
    width: 50%;
    margin: 0px auto;
}

.page-content h2{
    line-height: 40px;
    font-size: 18px;
    color: #fff;
}

.main {
    width: 50%;
    margin: 0px auto;
    box-sizing:border-box;
}

.task-input {
    width: 99%;
    height:30px;
    outline: 0;
    border: 1px solid #ccc;
}

.task-count{
    display: flex;
    margin:10px 0;
}

.task-count li {
    padding-left: 10px;
    flex: 1;
    color: #dd4b39;
}

.task-count li:nth-child(1){
    padding: 5px 0 0 10px;
}

.action {
    text-align: center;
    display: flex;
}
.action a {
    margin: 0px 10px;
    flex: 1;
    padding: 5px 0;
    color: #777;

}

.action a:nth-child(3){
    margin-right: 0;
}

.active {
    border: 1px solid rgba(175, 47, 47, 0.2);
}

.tasks {
    background-color: #fff;
}
.no-task-tip {
    padding:10px 0 10px 10px;
    display: block;
    border-bottom: 1px solid #ededed;
    color:#777;
}

.big-title {
    color: #222;
}


.todo-list {
    margin: 0;
    padding: 0;
    list-style: none;
}

.todo-list li {
    position: relative;
    font-size: 16px;
    border-bottom: 1px solid #ededed;
}

.todo-list li:hover {
    background-color: #fafafa;
}


.todo-list li.editing {
    border-bottom: none;
    padding: 0;
}

.todo-list li.editing .edit {
    display: block;
    width: 506px;
    padding: 13px 17px 12px 17px;
    margin: 0 0 0 43px;
}

.todo-list li.editing .view {
    display: none;
}

.todo-list li .toggle {
    text-align: center;
    width: 40px;
    /* auto, since non-WebKit browsers doesn't support input styling */
    height: auto;
    position: absolute;
    top: 5px;
    bottom: 0;
    margin: auto 0;
    border: none; /* Mobile Safari */
    -webkit-appearance: none;
    appearance: none;
}

.toggle {
    text-align: center;
    width: 40px;
    /* auto, since non-WebKit browsers doesn't support input styling */
    height: auto;
    position: absolute;
    top: 5px;
    bottom: 0;
    margin: auto 0;
    border: none; /* Mobile Safari */
    -webkit-appearance: none;
    appearance: none;
}

 .toggle:after {
    content: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="40" height="40" viewBox="-10 -18 100 135"><circle cx="50" cy="50" r="40" fill="none" stroke="#ededed" stroke-width="3"/></svg>');
}

.toggle:checked:after {
    content: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="40" height="40" viewBox="-10 -18 100 135"><circle cx="50" cy="50" r="40" fill="none" stroke="#bddad5" stroke-width="3"/><path fill="#5dc2af" d="M72 25L42 71 27 56l-4 4 20 20 34-52z"/></svg>');
}

.todo-list li label {
    white-space: pre-line;
    word-break: break-all;
    padding: 15px 60px 15px 15px;
    margin-left: 45px;
    display: block;
    line-height: 1.2;
    transition: color 0.4s;
}

.todo-list li.completed label {
    color: #d9d9d9;
    text-decoration: line-through;
}

/*.tip-toggle {
    padding-left: 0;
    position: relative;
}

.tip-toggle .toggle {
    top: -2px;
}

.tip-toggle span {
    margin-left: 45px;
}*/

.todo-list li .destroy {
    display: none;
    position: absolute;
    top: 0;
    right: 10px;
    bottom: 0;
    width: 40px;
    height: 40px;
    margin: auto 0;
    font-size: 30px;
    color: #cc9a9a;
    margin-bottom: 11px;
    transition: color 0.2s ease-out;
}

.todo-list li .destroy:hover {
    color: #af5b5e;
}

.todo-list li .destroy:after {
    content: '×';
}

.todo-list li:hover .destroy {
    display: block;
}

.todo-list li .edit {
    display: none;
}

.todo-list li.editing:last-child {
    margin-bottom: -1px;
}

完整页面

image.png

vue的基本指令的完整案例

css文件

相关文章

网友评论

延伸阅读

深度阅读

栏目导航

热点阅读