Question

我正在创建一个网站，其中我有一系列具有不同尺寸的图像，这些图像被放置在灯箱库中。

对不起提前阅读....代码如下：

HTML

<div id="wrapper">
    <h1>simple lightbox w/ slideshow (images only)</h1>

    <p>those image links i was talking about:</p>
    <ul id="paintings">
        <li> <a title="The Hills" href="http://www.artmajeur.com/files/oksana-veber/images/artworks/100x100/6683281_the-hils-100-100-cm-acrilic-on-canvas-1998-thumb.jpg" class="lightboxTrigger">
            on
            </a>

        </li>
        <li> <a title="Pixelisa" href="http://piq.codeus.net/static/media/userpics/piq_2313_400x400.png" class="lightboxTrigger">
            two
            </a>

        </li>
        <li> <a title="Vase" href="http://andyinoman.files.wordpress.com/2013/01/story-no-5-the-loosing-battle.jpg?w=500" class="lightboxTrigger">
            three
            </a>

        </li>
    </ul>
</div>

CSS

/* page styles */
body {
    margin: 0;
    padding: 0;
    background: #efefef;
}
#wrapper {
    width: 600px;
    margin: 0 auto;
    border-radius: 0 0 5px 5px;
    -moz-border-radius: 0 0 5px 5px;
    -webkit-border-radius: 0 0 5px 5px;
    background: #fff;
    border: 1px solid #ccc;
    padding: 25px;
    border-top: none;
    box-shadow: 0 0 5px #ccc;
    -moz-box-shadow: 0 0 5px #ccc;
    -webkit-box-shadow: 0 0 5px #ccc;
    text-align: left;
}
/* lightbox styles */
 #lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}
#lightbox p {
    text-align: right;
    color: #fff;
    margin-right: 20px;
    font-size: 12px;
}
#lightbox img {
    max-width: 940px;
}
/* slideshow styles */
 #slideshow {
    position: relative;
    z-index: 100;
    width: 600px;
    height: 350px;
    margin: 0 auto;
    padding: 10px;
    background-color: #fff;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.4);
}
#slideshow ul > li {
    position: absolute;
    top: 10px;
    left: 10px;
    right: 10px;
    bottom: 10px;
    list-style: none;
}
.nav {
    display: none;
}
.prev, .next {
    position: absolute;
    top: 50%;
    background: rgba(100, 100, 100, .5);
    padding: .25em .5em;
    color: #fff;
    text-decoration: none;
}
.next {
    right: 10px;
}
.prev {
    left: 10px;
}

的JavaScript

jQuery(document).ready(function ($) {

    var current, size;

    $('.lightboxTrigger').click(function (e) {
        e.preventDefault();

        var slideNum = $('.lightboxTrigger').index(this);

        if ($('#lightbox').length > 0) {
            $('#lightbox').fadeIn(300);
            $('#content').html('<img src="' + href + '" />');
        } else {

            var hgt = $(this).attr('height');
            var wid = $(this).attr('width');

            var lightbox =
                '<div id="lightbox">' +
                '<p>X</p>' +
                '<div id="slideshow">' +
                '<ul></ul>' +
                '<div class="nav">' +
                '<a href="#prev" class="prev slide-nav"><</a>' +
                '<a href="#next" class="next slide-nav">></a>' +
                '</div>' +
                '</div>' +
                '</div>';


            $('body').append(lightbox);

            $('#paintings').find('.lightboxTrigger').each(function () {

                var href = $(this).attr('href');
                var title = $(this).attr('title');
                $('#slideshow ul').append(
                    '<li>' +
                    '<img src="' + href + '">' +
                    '<h5>' + title + '</h5>' +
                    '</li>');
            });

            $('#lightbox').hide().fadeIn(300);
        }

        size = $('#slideshow ul > li').length;

        $('#slideshow ul > li').hide();
        $('#slideshow ul > li:eq(' + slideNum + ')').show();

        current = slideNum;
    });

    $('body').on('click', '#lightbox', function () {
        $('#lightbox').fadeOut(300);
    });

    $('body').on({
        mouseenter: function () {
            $('.nav').fadeIn(300);
        },
        mouseleave: function () {
            $('.nav').fadeOut(300);
        }
    }, '#slideshow');

    $('body').on('click', '.slide-nav', function (e) {

        e.preventDefault();
        e.stopPropagation();

        var $this = $(this);
        var dest;

        if ($this.hasClass('prev')) {
            dest = current - 1;
            if (dest < 0) {
                dest = size - 1;
            }
        } else {
            dest = current + 1;
            if (dest > size - 1) {
                dest = 0;
            }
        }

        $('#slideshow ul > li:eq(' + current + ')').fadeOut(750);
        $('#slideshow ul > li:eq(' + dest + ')').fadeIn(750);

        current = dest;
    });

});

此代码的问题是div id=slideshow的尺寸对于图像的尺寸不是动态的。我很确定我需要某种Javascript来存储每个图像片段的尺寸，然后将div的尺寸调整到这些尺寸。但是，我在Javascript中没有足够的经验来实现这一目标。

感谢所有对此采取行动的人！

Answer 1

要调整灯箱的尺寸，您可以使用附加功能查找正在显示的图像的高度，宽度，并将其应用于灯箱窗口。我为此创造了一个小提琴，请看这里：计算和应用维度的函数：

function adjustDimensions(current){
    var H = $('img','#slideshow ul > li:eq(' + current + ')').height();
    var W = $('img','#slideshow ul > li:eq(' + current + ')').width();
    if($('h5','#slideshow ul > li:eq(' + current + ')').length>0){
     H = H+20;   
    }
    $('#slideshow').animate({width:W+'px',height:H+'PX'},1000);
}

http://jsfiddle.net/lokeshpahal/yX4NP/2/

动态div维度：灯箱库

1 个答案: