Vue.js小案例(2)

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这个例子主要应用了vue.js的自定义过滤器，可以通过Vue.filter()注册一个全局过滤器，具体用法可以参考这里，vue.js也提供了一些内置过滤器。

CSS代码:

[v-cloak] {
  display: none;
}
*{
    margin:0;
    padding:0;
}
body{
    font-family:Microsoft YaHei;
    text-align:center;
}
li{
    list-style:none;
}
.bar{
    background-color:#5c9bb7;
    border-radius: 2px;
    width: 400px;
    padding: 14px;
    margin: 45px auto 20px;
    position:relative;
}

.bar input{
    background:#fff no-repeat 13px 13px;
    background-image:url(data:image/png;base64,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);
    border: none;
    width: 100%;
    line-height: 19px;
    padding: 11px 0;
    border-radius: 2px;
    box-shadow: 0 2px 8px #c4c4c4 inset;
    text-align: left;
    font-size: 14px;
    font-family: inherit;
    color: #738289;
    font-weight: bold;
    outline: none;
    text-indent: 40px;
}

ul{
    list-style: none;
    width: 428px;
    margin: 0 auto;
    text-align: left;
}

ul li{
    border-bottom: 1px solid #ddd;
    padding: 10px;
    overflow: hidden;
}

ul li img{
    width:60px;
    height:60px;
    float:left;
    border:none;
}

ul li p{
    margin-left: 75px;
    font-weight: bold;
    padding-top: 12px;
    color:#6e7a7f;
}[v-cloak] {
  display: none;
}
*{
    margin:0;
    padding:0;
}
body{
    font-family:Microsoft YaHei;
    text-align:center;
}
li{
    list-style:none;
}
.bar{
    background-color:#5c9bb7;
    border-radius: 2px;
    width: 400px;
    padding: 14px;
    margin: 45px auto 20px;
    position:relative;
}

.bar input{
    background:#fff no-repeat 13px 13px;
    background-image:url(data:image/png;base64,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);
    border: none;
    width: 100%;
    line-height: 19px;
    padding: 11px 0;
    border-radius: 2px;
    box-shadow: 0 2px 8px #c4c4c4 inset;
    text-align: left;
    font-size: 14px;
    font-family: inherit;
    color: #738289;
    font-weight: bold;
    outline: none;
    text-indent: 40px;
}

ul{
    list-style: none;
    width: 428px;
    margin: 0 auto;
    text-align: left;
}

ul li{
    border-bottom: 1px solid #ddd;
    padding: 10px;
    overflow: hidden;
}

ul li img{
    width:60px;
    height:60px;
    float:left;
    border:none;
}

ul li p{
    margin-left: 75px;
    font-weight: bold;
    padding-top: 12px;
    color:#6e7a7f;
}

HTML代码:

<div id="main" v-cloak>
    <div class="bar">
        <input type="text" v-model="searchStr" placeholder="Enter your search terms" />
    </div>
    <ul>
        <li v-for="a in articles | searchFor searchStr">
            <a :href="a.url"><img :src="a.image" /></a>
            <p>{{a.title}}</p>
        </li>
    </ul>
</div>

　　JS代码:

Vue.filter('searchFor', function (value, searchStr) {
    var result = [];
    if(!searchStr){
        return value;
    }
    searchStr = searchStr.trim().toLowerCase();
    result = value.filter(function(item){
        if(item.title.toLowerCase().indexOf(searchStr) !== -1){
            return item;
        }
    });
    return result;
});

var demo = new Vue({
    el: '#main',
    data: {
        searchStr: "",
        articles: [
            {
                "title": "What You Need To Know About CSS Variables",
                "url": "http://tutorialzine.com/2016/03/what-you-need-to-know-about-css-variables/",
                "image": "http://cdn.tutorialzine.com/wp-content/uploads/2016/03/css-variables-100x100.jpg"
            },
            {
                "title": "Freebie: 4 Great Looking Pricing Tables",
                "url": "http://tutorialzine.com/2016/02/freebie-4-great-looking-pricing-tables/",
                "image": "http://cdn.tutorialzine.com/wp-content/uploads/2016/02/great-looking-pricing-tables-100x100.jpg"
            },
            {
                "title": "20 Interesting JavaScript and CSS Libraries for February 2016",
                "url": "http://tutorialzine.com/2016/02/20-interesting-javascript-and-css-libraries-for-february-2016/",
                "image": "http://cdn.tutorialzine.com/wp-content/uploads/2016/02/interesting-resources-february-100x100.jpg"
            },
            {
                "title": "Quick Tip: The Easiest Way To Make Responsive Headers",
                "url": "http://tutorialzine.com/2016/02/quick-tip-easiest-way-to-make-responsive-headers/",
                "image": "http://cdn.tutorialzine.com/wp-content/uploads/2016/02/quick-tip-responsive-headers-100x100.png"
            },
            {
                "title": "Learn SQL In 20 Minutes",
                "url": "http://tutorialzine.com/2016/01/learn-sql-in-20-minutes/",
                "image": "http://cdn.tutorialzine.com/wp-content/uploads/2016/01/learn-sql-20-minutes-100x100.png"
            },
            {
                "title": "Creating Your First Desktop App With HTML, JS and Electron",
                "url": "http://tutorialzine.com/2015/12/creating-your-first-desktop-app-with-html-js-and-electron/",
                "image": "http://cdn.tutorialzine.com/wp-content/uploads/2015/12/creating-your-first-desktop-app-with-electron-100x100.png"
            }
        ]
    }
});

布局转换

本例应用了vue.js的v-if指令进行了条件渲染，以及v-bind绑定class和v-on处理事件

CSS代码:

[v-cloak] {
  display: none;
}
*{
    margin:0;
    padding:0;
}
body{
    font-family:Microsoft YaHei;
}
li{
    list-style:none;
}
.bar{
    background-color:#5c9bb7;
    border-radius: 2px;
    width: 580px;
    padding: 10px;
    margin: 45px auto 25px;
    position:relative;
    text-align:right;
    line-height: 1;
}
.bar a{
    background:#4987a1 center center no-repeat;
    width:32px;
    height:32px;
    display:inline-block;
    text-decoration:none !important;
    margin-right:5px;
    border-radius:2px;
    cursor:pointer;
}
.bar a.active{
    background-color:#c14694;
}
.bar a.list-icon{
    background-image:url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAyBpVFh0WE1MOmNvbS5hZG9iZS54bXAAAAAAADw/eHBhY2tldCBiZWdpbj0i77u/IiBpZD0iVzVNME1wQ2VoaUh6cmVTek5UY3prYzlkIj8+IDx4OnhtcG1ldGEgeG1sbnM6eD0iYWRvYmU6bnM6bWV0YS8iIHg6eG1wdGs9IkFkb2JlIFhNUCBDb3JlIDUuMC1jMDYwIDYxLjEzNDc3NywgMjAxMC8wMi8xMi0xNzozMjowMCAgICAgICAgIj4gPHJkZjpSREYgeG1sbnM6cmRmPSJodHRwOi8vd3d3LnczLm9yZy8xOTk5LzAyLzIyLXJkZi1zeW50YXgtbnMjIj4gPHJkZjpEZXNjcmlwdGlvbiByZGY6YWJvdXQ9IiIgeG1sbnM6eG1wPSJodHRwOi8vbnMuYWRvYmUuY29tL3hhcC8xLjAvIiB4bWxuczp4bXBNTT0iaHR0cDovL25zLmFkb2JlLmNvbS94YXAvMS4wL21tLyIgeG1sbnM6c3RSZWY9Imh0dHA6Ly9ucy5hZG9iZS5jb20veGFwLzEuMC9zVHlwZS9SZXNvdXJjZVJlZiMiIHhtcDpDcmVhdG9yVG9vbD0iQWRvYmUgUGhvdG9zaG9wIENTNSBXaW5kb3dzIiB4bXBNTTpJbnN0YW5jZUlEPSJ4bXAuaWlkOkYzNkFCQ0ZBMTBCRTExRTM5NDk4RDFEM0E5RkQ1NEZCIiB4bXBNTTpEb2N1bWVudElEPSJ4bXAuZGlkOkYzNkFCQ0ZCMTBCRTExRTM5NDk4RDFEM0E5RkQ1NEZCIj4gPHhtcE1NOkRlcml2ZWRGcm9tIHN0UmVmOmluc3RhbmNlSUQ9InhtcC5paWQ6RjM2QUJDRjgxMEJFMTFFMzk0OThEMUQzQTlGRDU0RkIiIHN0UmVmOmRvY3VtZW50SUQ9InhtcC5kaWQ6RjM2QUJDRjkxMEJFMTFFMzk0OThEMUQzQTlGRDU0RkIiLz4gPC9yZGY6RGVzY3JpcHRpb24+IDwvcmRmOlJERj4gPC94OnhtcG1ldGE+IDw/eHBhY2tldCBlbmQ9InIiPz7h1bLqAAAAWUlEQVR42mL8////BwYGBn4GCACxBRlIAIxAA/4jaXoPEkMyjJ+A/g9MDJQBRhYg8RFqMwg8RJIUINYLFDmBUi+ADQAF1n8ofk9yIAy6WPg4GgtDMRYAAgwAdLYwLAoIwPgAAAAASUVORK5CYII=);
}

.bar a.grid-icon{
    background-image:url(data:image/png;base64,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);
}
ul.grid{
    width: 570px;
    margin: 0 auto;
    text-align: left;
}
ul.grid li{
    padding: 2px;
    float:left;
}
ul.grid li img{
    width:280px;
    height:280px;
    object-fit: cover;
    display:block;
    border:none;
}
ul.list{
    width: 500px;
    margin: 0 auto;
    text-align: left;
}

ul.list li{
    border-bottom: 1px solid #ddd;
    padding: 10px;
    overflow: hidden;
}

ul.list li img{
    width:120px;
    height:120px;
    float:left;
    border:none;
}

ul.list li p{
    margin-left: 135px;
    font-weight: bold;
    color:#6e7a7f;
}

HTML代码:

<div id="main" v-cloak>
    <div class="bar">
        <a class="grid-icon" v-bind:class="{ 'active': layout == 'grid'}" v-on:click="layout = 'grid'"></a>
        <a class="list-icon" v-bind:class="{ 'active': layout == 'list'}" v-on:click="layout = 'list'"></a>
    </div>
    <ul v-if="layout == 'grid'" class="grid">
        <li v-for="a in articles">
            <a v-bind:href="a.url" target="_blank"><img v-bind:src="a.image.large" /></a>
        </li>
    </ul>
    <ul v-if="layout == 'list'" class="list">
        <li v-for="a in articles">
            <a v-bind:href="a.url" target="_blank"><img v-bind:src="a.image.small" /></a>
            <p>{{a.title}}</p>
        </li>
    </ul>
</div>

JS代码:

var demo = new Vue({
    el: '#main',
    data: {
        layout: 'grid',
        articles: [{
            "title": "What You Need To Know About CSS Variables",
            "url": "http://tutorialzine.com/2016/03/what-you-need-to-know-about-css-variables/",
            "image": {
                "large": "http://cdn.tutorialzine.com/wp-content/uploads/2016/03/css-variables.jpg",
                "small": "http://cdn.tutorialzine.com/wp-content/uploads/2016/03/css-variables-150x150.jpg"
            }
        },
        {
            "title": "Freebie: 4 Great Looking Pricing Tables",
            "url": "http://tutorialzine.com/2016/02/freebie-4-great-looking-pricing-tables/",
            "image": {
                "large": "http://cdn.tutorialzine.com/wp-content/uploads/2016/02/great-looking-pricing-tables.jpg",
                "small": "http://cdn.tutorialzine.com/wp-content/uploads/2016/02/great-looking-pricing-tables-150x150.jpg"
            }
        },
        {
            "title": "20 Interesting JavaScript and CSS Libraries for February 2016",
            "url": "http://tutorialzine.com/2016/02/20-interesting-javascript-and-css-libraries-for-february-2016/",
            "image": {
                "large": "http://cdn.tutorialzine.com/wp-content/uploads/2016/02/interesting-resources-february.jpg",
                "small": "http://cdn.tutorialzine.com/wp-content/uploads/2016/02/interesting-resources-february-150x150.jpg"
            }
        },
        {
            "title": "Quick Tip: The Easiest Way To Make Responsive Headers",
            "url": "http://tutorialzine.com/2016/02/quick-tip-easiest-way-to-make-responsive-headers/",
            "image": {
                "large": "http://cdn.tutorialzine.com/wp-content/uploads/2016/02/quick-tip-responsive-headers.png",
                "small": "http://cdn.tutorialzine.com/wp-content/uploads/2016/02/quick-tip-responsive-headers-150x150.png"
            }
        },
        {
            "title": "Learn SQL In 20 Minutes",
            "url": "http://tutorialzine.com/2016/01/learn-sql-in-20-minutes/",
            "image": {
                "large": "http://cdn.tutorialzine.com/wp-content/uploads/2016/01/learn-sql-20-minutes.png",
                "small": "http://cdn.tutorialzine.com/wp-content/uploads/2016/01/learn-sql-20-minutes-150x150.png"
            }
        },
        {
            "title": "Creating Your First Desktop App With HTML, JS and Electron",
            "url": "http://tutorialzine.com/2015/12/creating-your-first-desktop-app-with-html-js-and-electron/",
            "image": {
                "large": "http://cdn.tutorialzine.com/wp-content/uploads/2015/12/creating-your-first-desktop-app-with-electron.png",
                "small": "http://cdn.tutorialzine.com/wp-content/uploads/2015/12/creating-your-first-desktop-app-with-electron-150x150.png"
            }
        }]

    }
});

好啦!就是这样!你们学会了吗??